{"id":5613,"date":"2026-02-17T09:59:39","date_gmt":"2026-02-17T08:59:39","guid":{"rendered":"https:\/\/tevipa.com\/blog\/?p=5613"},"modified":"2026-03-05T19:43:49","modified_gmt":"2026-03-05T18:43:49","slug":"la-casquette-de-baseball","status":"publish","type":"post","link":"https:\/\/tevipa.com\/blog\/fr\/la-casquette-de-baseball\/","title":{"rendered":"La casquette de baseball"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/07\/logo512.png\" alt=\"Logo C\u00f3mo Cubrir un Cuerpo\" class=\"wp-image-6\" style=\"width:270px;height:auto\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/07\/logo512.png 512w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/07\/logo512-300x300.png 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/07\/logo512-150x150.png 150w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/figure>\n<\/div>\n\n\n<h1 class=\"wp-block-heading has-text-align-center\">La casquette de baseball<\/h1>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-001-1024x576.jpg\" alt=\"Famille portant des casquettes de baseball de tailles et hauteurs de calotte vari\u00e9es\" class=\"wp-image-5352\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-001-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-001-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-001-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-001-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-001-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-001-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Avant de continuer<\/strong><\/h2>\n\n\n\n<p class=\"text-justify\">Tous les calculs n\u00e9cessaires pour construire la casquette sont d\u00e9j\u00e0 effectu\u00e9s et organis\u00e9s dans le tableau technique que vous trouverez ci-dessous.<\/p>\n\n\n\n<p class=\"text-justify\">Il n\u2019est pas n\u00e9cessaire de faire des op\u00e9rations math\u00e9matiques si vous ne le souhaitez pas.<br>Vous pouvez travailler directement avec les valeurs d\u00e9j\u00e0 calcul\u00e9es pour chaque taille.<\/p>\n\n\n\n<p class=\"text-justify\">Cette section explique le fondement g\u00e9om\u00e9trique du syst\u00e8me, mais l\u2019application pratique est imm\u00e9diate gr\u00e2ce au tableau des valeurs.<\/p>\n\n\n\n<p class=\"text-justify\"><a href=\"#tavolaValori\" type=\"internal\" id=\"#tavolaValori\">\ud83d\udc49 Cliquez ici pour acc\u00e9der directement au tableau<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Nomenclature de la casquette de baseball<\/h2>\n\n\n\n<p class=\"text-justify\">Ci-dessous sont indiqu\u00e9es les principales parties d\u2019une casquette de baseball, en incorporant des <strong>synonymes d\u2019usage courant<\/strong> afin d\u2019unifier les crit\u00e8res et de faciliter la compr\u00e9hension du lecteur.<\/p>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">a- <strong><strong>Panneau frontal (ou l\u00e9 frontal)<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Pi\u00e8ce ou pi\u00e8ces qui constituent la partie avant de la calotte. Dans les casquettes \u00e0 six l\u00e9s, elles sont g\u00e9n\u00e9ralement deux ; dans celles \u00e0 cinq l\u00e9s, une seule.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-002_Panel-Frontal-1024x576.jpg\" alt=\"Panneau frontal ou quartier avant d\u2019une casquette de baseball en diff\u00e9rentes vues\" class=\"wp-image-5360\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-002_Panel-Frontal-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-002_Panel-Frontal-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-002_Panel-Frontal-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-002_Panel-Frontal-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-002_Panel-Frontal-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-002_Panel-Frontal-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">On trouve parfois une pince entre les deux panneaux du demi-devant, reliant par patronage la partie inf\u00e9rieure de la couture commune.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-003_panel-frontal-bis-1024x576.jpg\" alt=\"Pince centrale entre les deux panneaux frontaux d\u2019une casquette de baseball\" class=\"wp-image-5367\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-003_panel-frontal-bis-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-003_panel-frontal-bis-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-003_panel-frontal-bis-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-003_panel-frontal-bis-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-003_panel-frontal-bis-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-003_panel-frontal-bis-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">b- <strong><strong>Panneau lat\u00e9ral (ou l\u00e9 lat\u00e9ral)<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Pi\u00e8ce situ\u00e9e sur les c\u00f4t\u00e9s de la calotte, reliant les panneaux frontaux aux panneaux post\u00e9rieurs.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-004_-panel-lateral-1024x576.jpg\" alt=\"Panneau lat\u00e9ral ou quartier lat\u00e9ral d\u2019une casquette de baseball en diff\u00e9rentes vues\" class=\"wp-image-5374\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-004_-panel-lateral-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-004_-panel-lateral-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-004_-panel-lateral-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-004_-panel-lateral-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-004_-panel-lateral-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-004_-panel-lateral-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">c- <strong><strong>Panneau post\u00e9rieur (ou l\u00e9 post\u00e9rieur)<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Pi\u00e8ce ou pi\u00e8ces qui constituent la partie arri\u00e8re de la casquette. Elles peuvent \u00eatre ferm\u00e9es ou ouvertes pour accueillir un syst\u00e8me de r\u00e9glage.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/GORRA_DETRAS-1024x576.jpg\" alt=\"Panneau arri\u00e8re ou quartier arri\u00e8re d\u2019une casquette de baseball en diff\u00e9rentes vues\" class=\"wp-image-6284\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/GORRA_DETRAS-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/GORRA_DETRAS-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/GORRA_DETRAS-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/GORRA_DETRAS-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/GORRA_DETRAS-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/GORRA_DETRAS-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">d- <strong><strong>Calotte (ou corps de la casquette)<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Ensemble form\u00e9 par tous les panneaux ou l\u00e9s qui couvrent la t\u00eate.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-006_Copa-1024x576.jpg\" alt=\"Calotte d\u2019une casquette de baseball form\u00e9e par l\u2019ensemble des panneaux\" class=\"wp-image-5386\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-006_Copa-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-006_Copa-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-006_Copa-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-006_Copa-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-006_Copa-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-006_Copa-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">e- <strong><strong>Coutures de la couronne<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Coutures qui unissent les diff\u00e9rents panneaux et structurent la calotte.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-007_costurasCopa-1024x576.jpg\" alt=\"Coutures de la calotte reliant les panneaux d\u2019une casquette de baseball\" class=\"wp-image-5393\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-007_costurasCopa-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-007_costurasCopa-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-007_costurasCopa-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-007_costurasCopa-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-007_costurasCopa-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-007_costurasCopa-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">f- <strong><strong>\u0152illets<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Petites perforations renforc\u00e9es, g\u00e9n\u00e9ralement situ\u00e9es sur chaque panneau, destin\u00e9es \u00e0 la ventilation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">g- <strong><strong>Bouton sup\u00e9rieur<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Pi\u00e8ce situ\u00e9e au sommet qui recouvre la jonction sup\u00e9rieure des l\u00e9s.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-008_ojetesBoton-1024x576.jpg\" alt=\"Bouton sup\u00e9rieur situ\u00e9 au sommet d\u2019une casquette de baseball\" class=\"wp-image-5401\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-008_ojetesBoton-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-008_ojetesBoton-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-008_ojetesBoton-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-008_ojetesBoton-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-008_ojetesBoton-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-008_ojetesBoton-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">h- <strong><strong>Visi\u00e8re sup\u00e9rieure<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Pi\u00e8ce sup\u00e9rieure rigide ou semi-rigide situ\u00e9e \u00e0 la partie frontale inf\u00e9rieure de la casquette, destin\u00e9e \u00e0 prot\u00e9ger du soleil.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-009_viseraSuperior-1024x576.jpg\" alt=\"Visi\u00e8re sup\u00e9rieure rigide d\u2019une casquette de baseball\" class=\"wp-image-5409\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-009_viseraSuperior-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-009_viseraSuperior-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-009_viseraSuperior-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-009_viseraSuperior-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-009_viseraSuperior-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-009_viseraSuperior-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">i- <strong><strong>Visi\u00e8re inf\u00e9rieure<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Surface int\u00e9rieure de la visi\u00e8re, orient\u00e9e vers le visage. Elle peut \u00eatre doubl\u00e9e, contrast\u00e9e en couleur ou renforc\u00e9e selon le mod\u00e8le.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-010_viseraInferior-1024x576.jpg\" alt=\"Surface int\u00e9rieure de la visi\u00e8re d\u2019une casquette de baseball\" class=\"wp-image-5417\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-010_viseraInferior-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-010_viseraInferior-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-010_viseraInferior-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-010_viseraInferior-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-010_viseraInferior-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-010_viseraInferior-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">j- <strong><strong>Bande int\u00e9rieure<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">TBande de tissu plac\u00e9e sur le tour int\u00e9rieur de la casquette, en contact avec la t\u00eate. Sa fonction est d\u2019am\u00e9liorer le confort, d\u2019absorber la transpiration et de stabiliser l\u2019ajustement de la casquette.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-011_bandaInterior-1024x576.jpg\" alt=\"Bande int\u00e9rieure situ\u00e9e sur le contour interne d\u2019une casquette de baseball\" class=\"wp-image-5424\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-011_bandaInterior-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-011_bandaInterior-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-011_bandaInterior-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-011_bandaInterior-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-011_bandaInterior-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-011_bandaInterior-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">k- <strong><strong>Ruban cache-coutures<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Ruban appliqu\u00e9 sur les coutures int\u00e9rieures des l\u00e9s. Il sert \u00e0 couvrir les marges de couture, am\u00e9liorer la finition int\u00e9rieure et augmenter la durabilit\u00e9.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-012_cintasTapacostura-1024x576.jpg\" alt=\"Bande appliqu\u00e9e sur les coutures int\u00e9rieures des panneaux\" class=\"wp-image-5430\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-012_cintasTapacostura-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-012_cintasTapacostura-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-012_cintasTapacostura-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-012_cintasTapacostura-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-012_cintasTapacostura-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-012_cintasTapacostura-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>l- <strong>Ouverture post\u00e9rieure<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Ouverture situ\u00e9e \u00e0 l\u2019arri\u00e8re de la casquette permettant le passage du syst\u00e8me de r\u00e9glage et facilitant l\u2019adaptation \u00e0 diff\u00e9rentes tailles.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-014_aberturaPosterior-1024x576.jpg\" alt=\"Ouverture arri\u00e8re situ\u00e9e \u00e0 l\u2019arri\u00e8re d\u2019une casquette de baseball\" class=\"wp-image-5436\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-014_aberturaPosterior-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-014_aberturaPosterior-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-014_aberturaPosterior-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-014_aberturaPosterior-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-014_aberturaPosterior-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-014_aberturaPosterior-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">m- <strong><strong>Dispositif de r\u00e9glage<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">\u00c9l\u00e9ment de r\u00e9glage qui traverse l\u2019ouverture post\u00e9rieure et permet d\u2019ajuster le tour de la casquette. Il peut fonctionner selon diff\u00e9rents syst\u00e8mes.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-015_Cenidor-1024x576.jpg\" alt=\"Syst\u00e8me de r\u00e9glage situ\u00e9 \u00e0 l\u2019arri\u00e8re d\u2019une casquette de baseball\" class=\"wp-image-5442\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-015_Cenidor-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-015_Cenidor-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-015_Cenidor-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-015_Cenidor-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-015_Cenidor-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-015_Cenidor-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\"><strong>Nous devons distinguer le tissu principal, l\u2019entoilage rigide et la doublure:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"text-justify\">&#8211; Le <strong>tissu principal<\/strong> est le tissu ext\u00e9rieur de la casquette<\/li>\n\n\n\n<li class=\"text-justify\">&#8211; Comme <strong>entoilage rigide<\/strong>, on utilise g\u00e9n\u00e9ralement le Buckram, mat\u00e9riau rigide ou semi-rigide plac\u00e9 entre les couches pour donner de la structure \u00e0 la calotte (en particulier \u00e0 l\u2019avant).<\/li>\n\n\n\n<li class=\"text-justify\">&#8211; <strong>Doublure int\u00e9rieure<\/strong> qui couvre ou accompagne cette structure afin d\u2019am\u00e9liorer la finition et le confort.<\/li>\n<\/ul>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_ef8d63-b5 .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_ef8d63-b5 .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_ef8d63-b5\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Comment prendre la mesure du tour complet de t\u00eate<\/h2>\n\n\n\n<p class=\"text-justify\">Pour la construction de base du syst\u00e8me traditionnel, le tour de t\u00eate suffit.<br>Cependant, pour obtenir un ajustement plus pr\u00e9cis et une proportion volum\u00e9trique correcte de la calotte, il est possible d\u2019int\u00e9grer \u00e9galement les diam\u00e8tres cr\u00e2niens.<\/p>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong><strong>Tour de t\u00eate<\/strong><\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-016_contornoCraneo-1024x576.jpg\" alt=\"Mesure du tour de t\u00eate avec un m\u00e8tre ruban souple\" class=\"wp-image-5448\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-016_contornoCraneo-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-016_contornoCraneo-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-016_contornoCraneo-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-016_contornoCraneo-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-016_contornoCraneo-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-016_contornoCraneo-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">Utilisez un m\u00e8tre ruban souple en entourant la t\u00eate \u00e0 hauteur du front (environ 1\u20132 cm au-dessus des sourcils et des oreilles) et sur la partie la plus large de la nuque. Le ruban doit \u00eatre ajust\u00e9 mais non serr\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong><strong>Diam\u00e8tres cr\u00e2niens<\/strong><\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_01-1024x576.jpg\" alt=\"Mesure des diam\u00e8tres cr\u00e2niens ant\u00e9ro-post\u00e9rieur (a) et bilat\u00e9ral (b) pour le patronage proportionnel d\u2019une casquette de baseball\" class=\"wp-image-6157\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_01-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_01-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_01-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_01-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_01-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_01-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">On prend deux diam\u00e8tres:<\/p>\n\n\n\n<p class=\"text-justify\">\u2022 <strong><strong>Diam\u00e8tre ant\u00e9ro-post\u00e9rieur<\/strong> (a)<\/strong><br>Distance entre le point m\u00e9dian frontal (zone l\u00e9g\u00e8rement saillante du front) et le point le plus pro\u00e9minent de l\u2019occiput, en suivant une ligne droite imaginaire qui traverse la t\u00eate de l\u2019avant vers l\u2019arri\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">\u2022 <strong><strong>Diam\u00e8tre bilat\u00e9ral<\/strong> (b)<br><\/strong>Distance entre les deux points de plus grande largeur lat\u00e9rale du cr\u00e2ne (r\u00e9gions pari\u00e9tales droite et gauche).<\/p>\n\n\n\n<p class=\"text-justify\">Pour garantir la pr\u00e9cision, on peut placer un \u00e9lastique sur la ligne d\u2019appui de la casquette.<br>Effectuez les mesures exactement \u00e0 la hauteur correspondant \u00e0 cette ligne.<\/p>\n\n\n\n<p class=\"text-justify\">Ces deux mesures ne remplacent pas le tour de t\u00eate ; elles le compl\u00e8tent lorsqu\u2019on recherche un ajustement volum\u00e9trique plus fin.<\/p>\n\n\n\n<p class=\"text-justify\">Si l\u2019on ne souhaite pas mesurer individuellement les diam\u00e8tres cr\u00e2niens, on peut utiliser les valeurs indicatives figurant dans le tableau technique situ\u00e9 \u00e0 la fin du document.<\/p>\n\n\n\n<p class=\"text-justify\">Ces valeurs reposent sur des moyennes anthropom\u00e9triques et permettent une construction correcte dans la majorit\u00e9 des cas. Toutefois, la mesure directe offrira toujours un ajustement volum\u00e9trique plus pr\u00e9cis, en particulier pour les tailles structur\u00e9es ou les t\u00eates pr\u00e9sentant des proportions particuli\u00e8res.<\/p>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_0ad524-bd .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_0ad524-bd .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_0ad524-bd\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Las tallas de las gorras de b\u00e9isbol<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-017_tallas-1024x576.jpg\" alt=\"Tailles de casquette de baseball selon le tour de t\u00eate\" class=\"wp-image-5454\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-017_tallas-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-017_tallas-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-017_tallas-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-017_tallas-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-017_tallas-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-017_tallas-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">La taille d\u2019une casquette de baseball correspond directement au tour complet de t\u00eate, exprim\u00e9 en centim\u00e8tres.<\/p>\n\n\n\n<p class=\"text-justify\">La plage de tailles se situe entre 34,5 cm et 61 cm.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u00c2ge \/ Groupe<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>C (cm)<\/strong><\/td><\/tr><tr><td>Nouveau-n\u00e9 (0 m)<\/td><td class=\"has-text-align-right\" data-align=\"right\">34.5<\/td><\/tr><tr><td>3 mois<\/td><td class=\"has-text-align-right\" data-align=\"right\">40.5<\/td><\/tr><tr><td>6 mois<\/td><td class=\"has-text-align-right\" data-align=\"right\">43.3<\/td><\/tr><tr><td>12 mois (1 an)<\/td><td class=\"has-text-align-right\" data-align=\"right\">46.1<\/td><\/tr><tr><td>2 ans<\/td><td class=\"has-text-align-right\" data-align=\"right\">48.3<\/td><\/tr><tr><td>4 ans<\/td><td class=\"has-text-align-right\" data-align=\"right\">50.2<\/td><\/tr><tr><td>6\u20137 ans<\/td><td class=\"has-text-align-right\" data-align=\"right\">52<\/td><\/tr><tr><td>10 ans<\/td><td class=\"has-text-align-right\" data-align=\"right\">53.5<\/td><\/tr><tr><td>13\u201314 ans<\/td><td class=\"has-text-align-right\" data-align=\"right\">55<\/td><\/tr><tr><td>Adulte S\/M<\/td><td class=\"has-text-align-right\" data-align=\"right\">57<\/td><\/tr><tr><td>Adulte L<\/td><td class=\"has-text-align-right\" data-align=\"right\">59<\/td><\/tr><tr><td>Adulte XL<\/td><td class=\"has-text-align-right\" data-align=\"right\">61<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_e63685-bf .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_e63685-bf .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_e63685-bf\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Pi\u00e8ces de la couronne<\/h2>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">Hauteurs de couronne<\/h3>\n\n\n\n<p class=\"text-justify\">La hauteur de la couronne est la mesure verticale comprise entre le point sup\u00e9rieur de la casquette (sommet des panneaux) et le plan int\u00e9rieur d\u2019appui sur la t\u00eate.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-019_alturaCorona-1024x576.jpg\" alt=\"Mesure verticale de la hauteur de la calotte d\u2019une casquette de baseball\" class=\"wp-image-5460\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-019_alturaCorona-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-019_alturaCorona-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-019_alturaCorona-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-019_alturaCorona-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-019_alturaCorona-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-019_alturaCorona-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">Dans le syst\u00e8me traditionnel, on d\u00e9termine cette hauteur comme un pourcentage du tour de t\u00eate. Cependant, cette m\u00e9thode suppose que toutes les t\u00eates ayant le m\u00eame tour pr\u00e9sentent des proportions volum\u00e9triques similaires, ce qui n\u2019est pas toujours le cas, notamment pour les tailles structur\u00e9es.<\/p>\n\n\n\n<p class=\"text-justify\">Pour obtenir une forme plus stable et \u00e9viter les d\u00e9formations ogivales ou les couronnes excessivement basses, on peut relier la hauteur de la partie courbe de la couronne au diam\u00e8tre \u00e9quivalent du cr\u00e2ne.<\/p>\n\n\n\n<p class=\"text-justify\">On d\u00e9finit le diam\u00e8tre \u00e9quivalent comme:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>d<\/mi><mrow><mi>e<\/mi><mi>q<\/mi><\/mrow><\/msub><mo>=<\/mo><mfrac><mrow><mi>L<\/mi><mo>+<\/mo><mi>W<\/mi><\/mrow><mn>2<\/mn><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">d_{eq} = \\frac{L + W}{2}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p class=\"text-justify\">o\u00f9 <strong>L<\/strong> repr\u00e9sente le diam\u00e8tre ant\u00e9ro-post\u00e9rieur et <strong>W<\/strong> le diam\u00e8tre bilat\u00e9ral.<\/p>\n\n\n\n<p class=\"text-justify\">On \u00e9tablit la hauteur de la calotte comme une proportion constante de ce diam\u00e8tre:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>h<\/mi><mi>c<\/mi><\/msub><mo>=<\/mo><mn>0,70<\/mn><mo>\u22c5<\/mo><msub><mi>d<\/mi><mrow><mi>e<\/mi><mi>q<\/mi><\/mrow><\/msub><\/mrow><annotation encoding=\"application\/x-tex\">h_c = 0,70 \\cdot d_{eq}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p class=\"text-justify\">Le coefficient 0,70 donne une calotte \u00e9quilibr\u00e9e, proche de la g\u00e9om\u00e9trie sph\u00e9rique \u00e9quivalente du cr\u00e2ne, en \u00e9vitant \u00e0 la fois l\u2019effet \u00ab couronne aplatie \u00bb et la tendance ogivale dans les mod\u00e8les rigides.<\/p>\n\n\n\n<p class=\"text-justify\">La variation entre mod\u00e8le bas, moyen ou haut ne s\u2019obtient pas en modifiant cette proportion, mais en ajustant la partie structurelle inf\u00e9rieure du panneau.<\/p>\n\n\n\n<p class=\"text-justify\">Ainsi, on exprime la hauteur totale de la couronne comme:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>H<\/mi><mtext>total<\/mtext><\/msub><mo>=<\/mo><msub><mi>H<\/mi><mtext>calotte<\/mtext><\/msub><mo>+<\/mo><msub><mi>H<\/mi><mtext>base<\/mtext><\/msub><\/mrow><annotation encoding=\"application\/x-tex\">H_{\\text{total}} = H_{\\text{calotte}} + H_{\\text{base}}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p class=\"text-justify\">o\u00f9 <strong>H_base<\/strong> repr\u00e9sente la hauteur ajout\u00e9e dans la partie inf\u00e9rieure du panneau.<\/p>\n\n\n\n<p class=\"text-justify\">Cette approche permet de maintenir une calotte harmonieuse et stable dans toutes les tailles, en ne faisant varier que la proportion visuelle de l\u2019ensemble sans modifier la g\u00e9om\u00e9trie sup\u00e9rieure.<\/p>\n\n\n\n<p class=\"text-justify\">La hauteur totale de la couronne d\u00e9termine le caract\u00e8re visuel de la casquette.<\/p>\n\n\n\n<p class=\"text-justify\">Une m\u00eame taille peut \u00eatre construite avec une implantation plus basse, interm\u00e9diaire ou plus haute, en modifiant la proportion verticale de l\u2019ensemble sans alt\u00e9rer le contour d\u2019appui.<\/p>\n\n\n\n<p class=\"text-justify\">Cette variation permet d\u2019adapter le mod\u00e8le \u00e0 diff\u00e9rents styles : depuis des configurations discr\u00e8tes et proches du cr\u00e2ne jusqu\u2019\u00e0 des versions plus structur\u00e9es et plus affirm\u00e9.<\/p>\n\n\n\n<p class=\"text-justify\">Dans le syst\u00e8me d\u00e9crit, on n\u2019obtient pas cette diff\u00e9rence en modifiant la courbure de la calotte, mais en ajustant la hauteur de la partie structurelle inf\u00e9rieure du panneau : base basse (a), base moyenne (b) et base haute (c).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_02-1024x576.jpg\" alt=\"Comparaison entre base basse (a), moyenne (b) et haute (c) du panneau dans le patron de casquette de baseball\" class=\"wp-image-6167\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_02-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_02-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_02-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_02-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_02-1320x743.jpg 1320w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_02.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Nous d\u00e9signerons la hauteur de la base du panneau, de mani\u00e8re g\u00e9n\u00e9rale, par <strong>b<\/strong>, qu\u2019elle corresponde \u00e0 une configuration basse, moyenne ou haute.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Taille<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Tour de t\u00eate (cm)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Base basse (cm)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Base moyenne (cm)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Base haute (cm)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Nouveau-n\u00e9 (0 m)<\/td><td class=\"has-text-align-center\" data-align=\"center\">34.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">3 mois<\/td><td class=\"has-text-align-center\" data-align=\"center\">40.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">6 mois<\/td><td class=\"has-text-align-center\" data-align=\"center\">43.3<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">12 mois (1 an)<\/td><td class=\"has-text-align-center\" data-align=\"center\">46.1<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">2 ans<\/td><td class=\"has-text-align-center\" data-align=\"center\">48.3<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">4 ans<\/td><td class=\"has-text-align-center\" data-align=\"center\">50.2<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">6\u20137 ans<\/td><td class=\"has-text-align-center\" data-align=\"center\">52<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">10 ans<\/td><td class=\"has-text-align-center\" data-align=\"center\">53.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">13\u201314 ans<\/td><td class=\"has-text-align-center\" data-align=\"center\">55<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Adulte S\/M<\/td><td class=\"has-text-align-center\" data-align=\"center\">57<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Adulte L<\/td><td class=\"has-text-align-center\" data-align=\"center\">59<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Adulte XL<\/td><td class=\"has-text-align-center\" data-align=\"center\">61<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_cfd4ac-a1 .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_cfd4ac-a1 .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_cfd4ac-a1\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Nombre de l\u00e9s d\u2019une casquette de baseball<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-020_numeroGajos-1024x576.jpg\" alt=\"Diff\u00e9rentes configurations de panneaux sur une casquette de baseball\" class=\"wp-image-5466\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-020_numeroGajos-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-020_numeroGajos-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-020_numeroGajos-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-020_numeroGajos-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-020_numeroGajos-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-020_numeroGajos-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">Une casquette de baseball peut \u00eatre construite avec 5, 6, 7 ou 8 l\u00e9s.<\/p>\n\n\n\n<p class=\"text-justify\">Le nombre de panneaux ne modifie ni le tour de t\u00eate ni la hauteur de la calotte ; il change uniquement la subdivision de la surface de la calotte.<\/p>\n\n\n\n<p class=\"text-justify\">La configuration la plus habituelle est celle \u00e0 6 l\u00e9s, qui constitue le mod\u00e8le classique et le plus r\u00e9pandu.<\/p>\n\n\n\n<p class=\"text-justify\">Les casquettes \u00e0 7 ou 8 l\u00e9s se rapprochent davantage du domaine de la chapellerie, car elles permettent une subdivision plus fine de la surface de la calotte et un caract\u00e8re formel distinct.<\/p>\n\n\n\n<p class=\"text-justify\">Les casquettes \u00e0 5 et 6 l\u00e9s peuvent incorporer un dispositif de r\u00e9glage arri\u00e8re pour l\u2019ajustement de la taille. Dans ce cas, les deux pi\u00e8ces arri\u00e8re sont ouvertes, en creusant une portion du bord post\u00e9rieur de la calotte pour accueillir le syst\u00e8me de r\u00e9glage.<br>L\u2019usage d\u2019un dispositif de r\u00e9glage est particuli\u00e8rement fr\u00e9quent dans les casquettes \u00e0 <strong>5 l\u00e9s<\/strong>.<\/p>\n\n\n\n<ol style=\"list-style-type:lower-alpha\" class=\"wp-block-list\">\n<li class=\"text-justify\">Le dispositif de <strong>r\u00e9glage<\/strong> peut fonctionner selon diff\u00e9rents syst\u00e8mes, les plus courants \u00e9tant&nbsp;: <strong>fabric strap avec boucle metalique and keeper, slide buckle, hook-and-loop&nbsp; closure et snapback closure<\/strong><\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-021_cierresGorra-1024x576.jpg\" alt=\"Diff\u00e9rents syst\u00e8mes de fermeture arri\u00e8re d\u2019une casquette de baseball\" class=\"wp-image-5473\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-021_cierresGorra-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-021_cierresGorra-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-021_cierresGorra-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-021_cierresGorra-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-021_cierresGorra-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-021_cierresGorra-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_a9e7a5-ac .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_a9e7a5-ac .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_a9e7a5-ac\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Construction g\u00e9om\u00e9trique d\u2019un l\u00e9 de casquette<\/h2>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">D\u00e9finition du syst\u00e8me<\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>On part d\u2019une casquette ferm\u00e9e d\u00e9finie par:\n<ul class=\"wp-block-list\">\n<li>un tour de t\u00eate <strong>k<\/strong>,<\/li>\n\n\n\n<li>une hauteur de couronne <strong>c<\/strong>,<\/li>\n\n\n\n<li>une hauteur de base <strong>b<\/strong>,<\/li>\n\n\n\n<li>et un nombre de panneaux <strong>n<\/strong>, choisi librement pour des raisons constructives ou esth\u00e9tiques.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>On obtient la hauteur totale du panneau comme la somme de la calotte et de la base:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>H<\/mi><mtext>total<\/mtext><\/msub><mo>=<\/mo><mi>c<\/mi><mo>+<\/mo><mi>b<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">H_{\\text{total}} = c + b<\/annotation><\/semantics><\/math><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_03-1024x576.jpg\" alt=\"Sch\u00e9ma du syst\u00e8me g\u00e9om\u00e9trique avec tour de t\u00eate (k), hauteur de calotte (c), base (b) et nombre de panneaux (n)\" class=\"wp-image-6174\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_03-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_03-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_03-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_03-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_03-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_03-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Base du l\u00e9 au pnneau<\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">La base de chaque l\u00e9 s\u2019obtient en divisant la circonf\u00e9rence totale par le nombre de l\u00e9s:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-023_01-1024x576.jpg\" alt=\"Base d\u2019un panneau calcul\u00e9e comme k divis\u00e9 par n\" class=\"wp-image-5486\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-023_01-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-023_01-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-023_01-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-023_01-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-023_01-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-023_01-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mtext>baseL\u00e9<\/mtext><mo>=<\/mo><mfrac><mi>k<\/mi><mi>n<\/mi><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">\\text{baseL\u00e9} = \\frac{k}{n}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p class=\"text-justify\">Cette base repr\u00e9sente le d\u00e9veloppement \u00e0 plat de l\u2019arc \u00e9quatorial correspondant \u00e0 chaque panneau. Cette valeur est ind\u00e9pendante de la hauteur de la calotte (<strong>c<\/strong>) et de la hauteur de la base (<strong>b<\/strong>), puisqu\u2019elle d\u00e9pend uniquement du tour de t\u00eate et du nombre de panneaux.<\/p>\n\n\n\n<p class=\"text-justify\">Cette base repr\u00e9sente le d\u00e9veloppement \u00e0 plat de l\u2019arc \u00e9quatorial correspondant \u00e0 chaque panneau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Axe du l\u00e9<\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">On trace un segment horizontal dont la longueur correspond \u00e0 la base du l\u00e9.<\/p>\n\n\n\n<p class=\"text-justify\">Au point m\u00e9dian de ce segment, on \u00e9l\u00e8ve une perpendiculaire qui constitue l\u2019axe de sym\u00e9trie du l\u00e9.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-024_02-1024x576.jpg\" alt=\"Axe de sym\u00e9trie du panneau de casquette trac\u00e9 depuis le milieu de la base k\/n\" class=\"wp-image-5492\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-024_02-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-024_02-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-024_02-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-024_02-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-024_02-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-024_02-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Hauteur de la couronne<\/strong><\/h3>\n\n\n\n<p>Sur cet axe, on marque la hauteur de la couronne (<strong>c<\/strong>), mesur\u00e9e perpendiculairement \u00e0 partir de la base<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mi>c<\/mi><mo>=<\/mo><mn>0,70<\/mn><mo>\u22c5<\/mo><msub><mi>d<\/mi><mrow><mi>e<\/mi><mi>q<\/mi><\/mrow><\/msub><\/mrow><annotation encoding=\"application\/x-tex\">c = 0,70 \\cdot d_{eq}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>d<\/mi><mrow><mi>e<\/mi><mi>q<\/mi><\/mrow><\/msub><mo>=<\/mo><mfrac><mrow><mi>L<\/mi><mo>+<\/mo><mi>W<\/mi><\/mrow><mn>2<\/mn><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">d_{eq} = \\frac{L + W}{2}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p>L\u2019extr\u00e9mit\u00e9 sup\u00e9rieure de cette perpendiculaire d\u00e9finit le sommet du panneau, qui correspond au point de la couronne de la t\u00eate.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_04-1024x576.jpg\" alt=\"D\u00e9termination de la hauteur de la calotte (c) par la formule c = 0,70 \u00b7 d_eq pour une casquette de baseball\" class=\"wp-image-6181\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_04-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_04-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_04-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_04-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_04-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_04-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Construction de l\u2019arc lat\u00e9ral<\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">On relie le sommet \u00e0 l\u2019une des extr\u00e9mit\u00e9s de la base par un segment droit.<\/p>\n\n\n\n<p class=\"text-justify\">Au point m\u00e9dian de ce segment, on trace une perpendiculaire \u00e0 celui-ci.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-026_04-1024x576.jpg\" alt=\"Construction g\u00e9om\u00e9trique de l\u2019arc lat\u00e9ral du panneau avec perpendiculaire au point m\u00e9dian\" class=\"wp-image-5505\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-026_04-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-026_04-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-026_04-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-026_04-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-026_04-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-026_04-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>D\u00e9termination du centre de l\u2019arc<\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">On prolonge la ligne de base du l\u00e9.<\/p>\n\n\n\n<p class=\"text-justify\">Le point o\u00f9 la perpendiculaire trac\u00e9e \u00e0 l\u2019\u00e9tape pr\u00e9c\u00e9dente coupe ce prolongement d\u00e9finit le centre g\u00e9om\u00e9trique de l\u2019arc lat\u00e9ral du l\u00e9.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-027_05-1024x576.jpg\" alt=\"D\u00e9termination g\u00e9om\u00e9trique du centre de l\u2019arc lat\u00e9ral par prolongement de la base et intersection avec la perpendiculaire\" class=\"wp-image-5514\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-027_05-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-027_05-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-027_05-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-027_05-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-027_05-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-027_05-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Trac\u00e9 du l\u00e9<\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">\u00c0 partir de ce centre, on trace l\u2019arc reliant l\u2019extr\u00e9mit\u00e9 de la base au sommet.<\/p>\n\n\n\n<p class=\"text-justify\">Le m\u00eame proc\u00e9d\u00e9 est r\u00e9p\u00e9t\u00e9 de mani\u00e8re sym\u00e9trique de l\u2019autre c\u00f4t\u00e9 de l\u2019axe central.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-028_06-1024x576.jpg\" alt=\"Tra\u00e7age de l\u2019arc lat\u00e9ral du panneau \u00e0 partir du centre g\u00e9om\u00e9trique et r\u00e9p\u00e9tition sym\u00e9trique par rapport \u00e0 l\u2019axe\" class=\"wp-image-5521\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-028_06-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-028_06-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-028_06-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-028_06-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-028_06-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-028_06-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>R\u00e9sultat<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li class=\"text-justify\">Le contour obtenu d\u00e9finit la calotte du panneau:<\/li>\n<\/ol>\n\n\n\n<p class=\"text-justify\">\u2022 sym\u00e9trique,<br>\u2022 g\u00e9om\u00e9triquement coh\u00e9rente,<br>\u2022 \u00e0 courbure constante,<br>\u2022 et compatible avec la fermeture correcte de la couronne lors de l\u2019assemblage de tous les panneaux.<\/p>\n\n\n\n<p class=\"text-justify\">Ce trac\u00e9 correspond \u00e0 la partie sup\u00e9rieure courbe (la calotte). On y ajoutera ensuite la partie structurelle inf\u00e9rieure, que nous appelons base (<strong>b<\/strong>), afin de compl\u00e9ter la hauteur totale du panneau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Panneau complet<\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">Une fois la calotte du panneau construite, on ajoute la partie structurelle inf\u00e9rieure correspondant \u00e0 la base (<strong>b<\/strong>).<\/p>\n\n\n\n<p class=\"text-justify\">\u00c0 partir de la ligne de base initiale, on trace deux segments perpendiculaires vers le bas, de longueur \u00e9gale \u00e0 la valeur de <strong>b<\/strong> d\u00e9finie dans la section \u00ab Hauteurs de couronne \u00bb.<\/p>\n\n\n\n<p class=\"text-justify\">On relie les extr\u00e9mit\u00e9s inf\u00e9rieures de ces segments par une ligne droite parall\u00e8le \u00e0 la ligne de base initiale.<\/p>\n\n\n\n<p>On obtient ainsi le panneau complet, dont la hauteur totale est donn\u00e9e par:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>H<\/mi><mtext>total<\/mtext><\/msub><mo>=<\/mo><mi>c<\/mi><mo>+<\/mo><mi>b<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">H_{\\text{total}} = c + b<\/annotation><\/semantics><\/math><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_05-1024x576.jpg\" alt=\"Construction du panneau complet en additionnant la calotte (c) et la base structurale (b)\" class=\"wp-image-6188\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_05-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_05-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_05-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_05-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_05-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_05-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>\u00c9volutivit\u00e9 du syst\u00e8me<\/strong><\/h3>\n\n\n\n<p class=\"text-justify\">En conservant cette m\u00e9thode:<\/p>\n\n\n\n<p class=\"text-justify\">\u2022 la taille se contr\u00f4le exclusivement par le tour de t\u00eate (<strong>k<\/strong>)<br>\u2022 la g\u00e9om\u00e9trie de la calotte se d\u00e9termine par la relation <strong>c = 0,70 \u00b7 d_eq<\/strong><br>\u2022 la hauteur totale du panneau s\u2019ajuste au moyen de la base (<strong>b<\/strong>)<br>\u2022 et le nombre de panneaux (<strong>n<\/strong>) peut varier sans modifier ni la taille ni la proportion verticale du mod\u00e8le.<\/p>\n\n\n\n<p class=\"text-justify\">Cette dissociation des variables permet d\u2019appliquer le syst\u00e8me \u00e0 n\u2019importe quelle taille, du nouveau-n\u00e9 \u00e0 l\u2019adulte, sans alt\u00e9rer ni la proportion ni la stabilit\u00e9 de la casquette.<\/p>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_bf7c56-4e .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_bf7c56-4e .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_bf7c56-4e\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading text-justify\">La visi\u00e8re<\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\">D\u00e9finition de la visi\u00e8re<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-029_07-1024x576.jpg\" alt=\"Visi\u00e8re courb\u00e9e d\u2019une casquette de baseball en perspective, mettant en \u00e9vidence sa structure rigide\" class=\"wp-image-5528\" style=\"width:700px\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-029_07-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-029_07-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-029_07-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-029_07-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-029_07-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-029_07-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">La visi\u00e8re est la pi\u00e8ce frontale de la casquette de baseball, g\u00e9n\u00e9ralement rigide ou semi-rigide, dont la fonction principale est de prot\u00e9ger les yeux du soleil. Cependant, son importance ne se limite pas \u00e0 cet aspect fonctionnel : elle projette visuellement la casquette vers l\u2019avant et en d\u00e9termine en grande partie le caract\u00e8re esth\u00e9tique.<\/p>\n\n\n\n<p class=\"text-justify\">Du point de vue constructif, on trace la visi\u00e8re \u00e0 plat, puis on lui donne sa courbure. On ne doit pas concevoir son dessin de mani\u00e8re arbitraire, mais en relation directe avec le tour de t\u00eate (<strong>k<\/strong>) sur lequel on construit la couronne.<\/p>\n\n\n\n<p class=\"text-justify\">Dans notre syst\u00e8me, on d\u00e9veloppe la visi\u00e8re selon une m\u00e9thode proportionnelle et \u00e9volutive. Cela signifie que l\u2019on peut g\u00e9n\u00e9rer n\u2019importe quelle taille \u2014 du nourrisson \u00e0 l\u2019adulte \u2014 tout en conservant la coh\u00e9rence g\u00e9om\u00e9trique de l\u2019ensemble.<\/p>\n\n\n\n<p class=\"text-justify\">La visi\u00e8re d\u00e9pend de trois param\u00e8tres principaux:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li class=\"text-justify\">La <strong>largeur<\/strong>, d\u00e9termin\u00e9e par l\u2019angle d\u2019ouverture.<\/li>\n\n\n\n<li>La <strong>longueur<\/strong>, qui d\u00e9finit la projection frontale.<\/li>\n\n\n\n<li><strong>L\u2019arrondi<\/strong>, qui adoucit les extr\u00e9mit\u00e9s et la transition entre les c\u00f4t\u00e9s et la partie frontale.<\/li>\n<\/ol>\n\n\n\n<p class=\"text-justify\">Ces trois param\u00e8tres permettent de contr\u00f4ler avec pr\u00e9cision \u00e0 la fois la proportion et le comportement visuel de la pi\u00e8ce, en \u00e9vitant les d\u00e9formations ou les solutions improvis\u00e9es. Dans les sections suivantes, nous d\u00e9velopperons chacun d\u2019eux de mani\u00e8re ind\u00e9pendante.<\/p>\n\n\n\n<h3 class=\"wp-block-heading text-justify has-medium-font-size\">Largeur de la visi\u00e8re<\/h3>\n\n\n\n<p class=\"text-justify\">La largeur de la visi\u00e8re d\u00e9termine dans quelle mesure elle \u00ab enveloppe \u00bb la partie frontale de la t\u00eate. Elle d\u00e9finit son ouverture lat\u00e9rale et, par cons\u00e9quent, sa pr\u00e9sence visuelle dans l\u2019ensemble de la casquette.<\/p>\n\n\n\n<p class=\"text-justify\">Contrairement \u00e0 la longueur \u2014 qui projette la pi\u00e8ce vers l\u2019avant \u2014 la largeur contr\u00f4le son extension sur le p\u00e9rim\u00e8tre frontal du cr\u00e2ne. Une visi\u00e8re plus large produit une image plus enveloppante et sportive ; une visi\u00e8re plus \u00e9troite g\u00e9n\u00e8re un effet plus l\u00e9ger et plus contenu.<\/p>\n\n\n\n<p class=\"text-justify\">Du point de vue g\u00e9om\u00e9trique, on d\u00e9finit la largeur par un angle central trac\u00e9 sur le tour de t\u00eate (<strong>k<\/strong>). Cet angle d\u00e9termine l\u2019arc de base sur lequel on construit la pi\u00e8ce et, par cons\u00e9quent, son ouverture lat\u00e9rale.<\/p>\n\n\n\n<p class=\"text-justify\">Plus l\u2019angle est grand, plus l\u2019arc frontal occup\u00e9 par la visi\u00e8re sur le p\u00e9rim\u00e8tre de la t\u00eate est important, et plus son apparence est enveloppante. Plus l\u2019angle est r\u00e9duit, plus la projection lat\u00e9rale sera contenue et l\u00e9g\u00e8re.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_06-1024x576.jpg\" alt=\"D\u00e9finition g\u00e9om\u00e9trique de la largeur de la visi\u00e8re par angle central sur le tour de t\u00eate (k)\" class=\"wp-image-6195\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_06-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_06-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_06-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_06-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_06-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_06-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Dans notre syst\u00e8me, nous \u00e9tablissons trois variantes proportionnelles:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>120\u00b0 \u2192 visi\u00e8re \u00e9troite<\/strong><\/li>\n\n\n\n<li><strong>140\u00b0 \u2192 visi\u00e8re<\/strong> <strong>moyenne<\/strong><\/li>\n\n\n\n<li><strong>160\u00b0 \u2192 visi\u00e8re<\/strong> <strong>large<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Ces trois options permettent de moduler le caract\u00e8re de la casquette sans alt\u00e9rer sa coh\u00e9rence g\u00e9om\u00e9trique, puisque l\u2019angle se calcule toujours en relation avec le tour de t\u00eate. Si l\u2019on repr\u00e9sente le tour de t\u00eate sous forme de circonf\u00e9rence, il suffit d\u2019y reporter les trois angles propos\u00e9s pour visualiser imm\u00e9diatement la largeur correspondante de chaque variante.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_07-1024x576.jpg\" alt=\"Comparaison des visi\u00e8res 120\u00b0, 140\u00b0 et 160\u00b0 pour casquettes \u00e0 5, 6, 7 et 8 panneaux\" class=\"wp-image-6201\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_07-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_07-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_07-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_07-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_07-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_07-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">Dans les constructions courantes \u2014 \u00e0 cinq, six, sept ou huit panneaux \u2014 ces angles se r\u00e9partissent diff\u00e9remment par rapport aux coutures. Toutefois, la largeur de la visi\u00e8re ne d\u00e9pend pas du nombre de panneaux, mais uniquement de l\u2019arc d\u00e9fini sur le tour de t\u00eate.<\/p>\n\n\n\n<p class=\"text-justify\">Dans la section suivante, nous d\u00e9finirons le deuxi\u00e8me param\u00e8tre fondamental : la longueur de la visi\u00e8re.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Longueur de la visi\u00e8re<\/h2>\n\n\n\n<p class=\"text-justify\">La longueur de la visi\u00e8re d\u00e9termine sa projection frontale, c\u2019est-\u00e0-dire la distance par laquelle la pi\u00e8ce avance vers l\u2019avant \u00e0 partir du tour de t\u00eate.<\/p>\n\n\n\n<p class=\"text-justify\">Alors que la largeur se d\u00e9finit par un angle sur le p\u00e9rim\u00e8tre, la longueur se construit en relation directe avec le <strong>rayon (r)<\/strong> de la circonf\u00e9rence de base.<\/p>\n\n\n\n<p class=\"text-justify\">On rappelle que ce rayon s\u2019obtient \u00e0 partir du tour de t\u00eate (<strong>k<\/strong>) selon la relation:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mi>r<\/mi><mo>=<\/mo><mfrac><mi>k<\/mi><mrow><mn>2<\/mn><mi>\u03c0<\/mi><mi>r<\/mi><\/mrow><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">r = \\frac{k}{2\\pi r}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p class=\"text-justify\">Ainsi, chaque taille g\u00e9n\u00e8re automatiquement son rayon correspondant, garantissant la coh\u00e9rence proportionnelle du syst\u00e8me.<\/p>\n\n\n\n<p class=\"text-justify\">Au lieu d\u2019exprimer la longueur en centim\u00e8tres fixes, on la d\u00e9finit comme une fraction du rayon. On \u00e9tablit trois variantes:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_08-1024x576.jpg\" alt=\"Relation entre rayon du tour de t\u00eate (r), angle de visi\u00e8re et longueur proportionnelle (0,62r, 0,75r, 0,87r)\" class=\"wp-image-6215\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_08-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_08-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_08-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_08-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_08-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_08-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li class=\"text-justify\"><strong>0,87 r: visi\u00e8re<\/strong> <strong>longue<\/strong><\/li>\n\n\n\n<li class=\"text-justify\"><strong>0,75 r: visi\u00e8re<\/strong> <strong>moyenne<\/strong><\/li>\n\n\n\n<li class=\"text-justify\"><strong>0,62 r: &nbsp;visi\u00e8re<\/strong> <strong>courte<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"text-justify\">Ces proportions permettent de moduler la pr\u00e9sence frontale de la casquette sans rompre son \u00e9quilibre g\u00e9om\u00e9trique. Comme la longueur d\u00e9pend du rayon, elle \u00e9volue automatiquement avec tout tour de t\u00eate.<\/p>\n\n\n\n<p class=\"text-justify\">La diff\u00e9rence entre ces trois options peut sembler faible sur le plan num\u00e9rique, mais elle produit des variations visuelles nettement perceptibles. Une augmentation de la fraction du rayon accro\u00eet la projection et renforce la pr\u00e9sence de la pi\u00e8ce ; une r\u00e9duction engendre une visi\u00e8re plus contenue et plus l\u00e9g\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">On mesure la longueur sur l\u2019axe central frontal, depuis l\u2019arc de base d\u00e9fini par l\u2019angle jusqu\u2019\u00e0 l\u2019extr\u00e9mit\u00e9 avant de la visi\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">Dans la section suivante, nous aborderons le troisi\u00e8me param\u00e8tre fondamental : l\u2019arrondi de la visi\u00e8re, qui r\u00e9gule la transition entre la partie frontale et les c\u00f4t\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\"><strong>Arrondi de la visi\u00e8re<\/strong><\/h2>\n\n\n\n<p class=\"text-justify\">L\u2019arrondi r\u00e9gule la transition entre la partie frontale et les c\u00f4t\u00e9s de la visi\u00e8re. Il ne modifie ni l\u2019angle ni la longueur, mais d\u00e9termine la douceur de leur rencontre.<\/p>\n\n\n\n<p class=\"text-justify\">Dans les illustrations pr\u00e9c\u00e9dentes, les visi\u00e8res apparaissent d\u00e9j\u00e0 arrondies. Cela permet d\u2019observer comment la forme \u00e9volue lorsque l\u2019on construit l\u2019arrondi en coh\u00e9rence avec la projection frontale.<\/p>\n\n\n\n<p class=\"text-justify\">Dans notre syst\u00e8me, on ne trace pas l\u2019arrondi de mani\u00e8re arbitraire. On l\u2019obtient en utilisant comme rayon auxiliaire la projection elle-m\u00eame de la visi\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">Autrement dit, on utilise la longueur d\u00e9finie comme fraction de <strong>r<\/strong> (0,62 r, 0,75 r ou 0,87 r) comme rayon de la circonf\u00e9rence qui g\u00e9n\u00e8re l\u2019arc de transition aux extr\u00e9mit\u00e9s.<\/p>\n\n\n\n<p class=\"text-justify\">Ainsi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"text-justify\">Une visi\u00e8re courte produit un arrondi plus contenu.<\/li>\n\n\n\n<li class=\"text-justify\">Une visi\u00e8re moyenne g\u00e9n\u00e8re une transition \u00e9quilibr\u00e9e.<\/li>\n\n\n\n<li class=\"text-justify\">Une visi\u00e8re longue offre une courbe plus ample et plus enveloppante.<\/li>\n<\/ul>\n\n\n\n<p class=\"text-justify\">Le r\u00e9sultat est un syst\u00e8me enti\u00e8rement proportionnel, dans lequel l\u2019arrondi \u00e9volue automatiquement avec la longueur et conserve sa coh\u00e9rence quelle que soit la taille.<\/p>\n\n\n\n<p class=\"text-justify\">Cette m\u00e9thode \u00e9vite les cassures, les tangences forc\u00e9es ou les terminaisons rigides, garantissant la continuit\u00e9 g\u00e9om\u00e9trique du p\u00e9rim\u00e8tre de la pi\u00e8ce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Ajustement arri\u00e8re de la casquette<\/h2>\n\n\n\n<p class=\"text-justify\">Dans les casquettes r\u00e9glables, l\u2019ouverture arri\u00e8re permet d\u2019adapter le tour de t\u00eate sans modifier la g\u00e9om\u00e9trie frontale. Sa construction doit maintenir une coh\u00e9rence proportionnelle tant avec le tour de t\u00eate qu\u2019avec la structure des panneaux. Dans notre syst\u00e8me, on d\u00e9finit l\u2019ouverture au moyen de deux r\u00e8gles simples et constantes.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_09-1024x576.jpg\" alt=\"Construction de l\u2019ouverture arri\u00e8re r\u00e9glable d\u00e9finie par k \/ 12\" class=\"wp-image-6222\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_09-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_09-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_09-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_09-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_09-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/bcp-9_09-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Hauteur de l\u2019ouverture<\/h2>\n\n\n\n<p class=\"text-justify\">On calcule la hauteur comme suit:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mtext>Hauteur<\/mtext><mo>=<\/mo><mfrac><mi>k<\/mi><mn>12<\/mn><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">\\text{Hauteur} = \\frac{k}{12}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p class=\"text-justify\">o\u00f9 <strong>k<\/strong> repr\u00e9sente le tour de t\u00eate.<\/p>\n\n\n\n<p class=\"text-justify\">Cette proportion maintient un \u00e9quilibre visuel stable dans toutes les tailles et reproduit correctement la hauteur que nous avons jug\u00e9e appropri\u00e9e pour la casquette de base \u00e0 six panneaux.<\/p>\n\n\n\n<p class=\"text-justify\">Exemple pour la taille 59:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mfrac><mn>59<\/mn><mn>12<\/mn><\/mfrac><mo>\u2248<\/mo><mn>4,9<\/mn><mtext>&nbsp;cm<\/mtext><\/mrow><annotation encoding=\"application\/x-tex\">\\frac{59}{12} \\approx 4,9 \\text{ cm}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p class=\"text-justify\">Soit environ 5 cm.<\/p>\n\n\n\n<p class=\"text-justify\">La hauteur d\u00e9pend exclusivement du tour de t\u00eate et non du nombre de panneaux.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Largeur de l\u2019ouverture<\/h2>\n\n\n\n<p class=\"text-justify\">On d\u00e9termine la largeur en fonction de la base du panneau arri\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">R\u00e8gle:<\/p>\n\n\n\n<p class=\"has-text-align-center text-justify\"><strong>Chaque c\u00f4t\u00e9 de l\u2019ouverture occupe la moiti\u00e9 de la base d\u2019un panneau.<\/strong><\/p>\n\n\n\n<p class=\"text-justify\">Donc:<\/p>\n\n\n\n<p class=\"has-text-align-center text-justify\"><strong>Largeur totale de l\u2019ouverture = une base compl\u00e8te de panneau<\/strong><\/p>\n\n\n\n<p class=\"text-justify\">Cela garantit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"text-justify\">Une sym\u00e9trie parfaite.<\/li>\n\n\n\n<li class=\"text-justify\">Que l\u2019ouverture ne d\u00e9passe jamais le centre des panneaux lat\u00e9raux.<\/li>\n\n\n\n<li class=\"text-justify\">Une coh\u00e9rence structurelle, quel que soit le nombre de panneaux.<\/li>\n<\/ul>\n\n\n\n<p class=\"text-justify\">Exemples pour la taille 59:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"text-justify\">Casquette \u00e0 6 panneaux (base \u2248 9 cm) \u2192 ouverture \u2248 9 cm<\/li>\n\n\n\n<li class=\"text-justify\">Casquette \u00e0 8 panneaux (base \u2248 6,5 cm) \u2192 ouverture \u2248 6,5 cm<\/li>\n<\/ul>\n\n\n\n<p class=\"text-justify\">Plus la casquette comporte de panneaux, plus l\u2019ouverture sera contenue, tout en maintenant l\u2019\u00e9quilibre visuel de l\u2019ensemble.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Trac\u00e9 de la visi\u00e8re<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_01-1024x576.jpg\" alt=\"Construction de la visi\u00e8re \u00e0 partir d\u2019un angle \u03b2 et d\u2019un rayon rt\" class=\"wp-image-6230\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_01-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_01-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_01-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_01-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_01-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_01-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">Avant de commencer, il est important de pr\u00e9ciser que toutes les valeurs n\u00e9cessaires \u00e0 ce trac\u00e9 (tour de t\u00eate, rayon th\u00e9orique, angle \u03b2, longueurs et proportions) figurent dans le tableau de la section suivante.<\/p>\n\n\n\n<p class=\"text-justify\">Dans ce chapitre, nous nous concentrons exclusivement sur la proc\u00e9dure g\u00e9om\u00e9trique.<\/p>\n\n\n\n<p class=\"text-justify\">On part d\u2019un point qui servira de centre de construction.<\/p>\n\n\n\n<p class=\"text-justify\">\u00c0 partir de ce point, on trace verticalement le rayon th\u00e9orique de la t\u00eate (<strong>rt<\/strong>), qui constitue l\u2019axe de sym\u00e9trie du syst\u00e8me.<\/p>\n\n\n\n<p class=\"text-justify\">Au point sup\u00e9rieur de cet axe, on construit l\u2019angle total de la visi\u00e8re (<strong>\u03b2<\/strong>), en le divisant en deux parties \u00e9gales:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"text-justify\">\u03b2\/2 d\u2019un c\u00f4t\u00e9<\/li>\n\n\n\n<li class=\"text-justify\">\u03b2\/2 de l\u2019autre<\/li>\n<\/ul>\n\n\n\n<p class=\"text-justify\">Ces deux directions d\u00e9terminent l\u2019ouverture frontale de la visi\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">Ensuite, \u00e0 partir de ce m\u00eame point sup\u00e9rieur, on trace un arc reliant les trois lignes obtenues (l\u2019axe vertical et les deux directions lat\u00e9rales).<\/p>\n\n\n\n<p class=\"text-justify\">Cet arc \u2014 repr\u00e9sent\u00e9 en magenta dans l\u2019illustration \u2014 correspond \u00e0 la ligne de jonction entre la visi\u00e8re et la couronne de la casquette.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_02-1024x576.jpg\" alt=\"Arc sup\u00e9rieur d\u00e9finissant la jonction entre la visi\u00e8re et la calotte\" class=\"wp-image-6237\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_02-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_02-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_02-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_02-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_02-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_02-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">\u00c0 partir de ce trac\u00e9, on prolonge l\u2019axe vertical correspondant au rayon th\u00e9orique (<strong>rt<\/strong>) en ajoutant la valeur de la longueur de visi\u00e8re (<strong>lv<\/strong>).<\/p>\n\n\n\n<p class=\"text-justify\">Autrement dit, on prolonge la ligne verticale jusqu\u2019\u00e0 atteindre la profondeur totale de la visi\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">Au point o\u00f9 se termine <strong>rt<\/strong> et o\u00f9 commence <strong>lv<\/strong>, on trace une ligne perpendiculaire \u00e0 l\u2019axe vertical.<\/p>\n\n\n\n<p class=\"text-justify\">Depuis l\u2019extr\u00e9mit\u00e9 inf\u00e9rieure correspondant \u00e0 la longueur de visi\u00e8re, on trace une ligne parall\u00e8le \u00e0 la pr\u00e9c\u00e9dente.<\/p>\n\n\n\n<p class=\"text-justify\">Enfin, on trace deux lignes parall\u00e8les \u00e0 l\u2019axe du rayon th\u00e9orique (<strong>rt<\/strong>) passant par les points de d\u00e9but et de fin de l\u2019arc de jonction avec la couronne. Ces op\u00e9rations d\u00e9finissent le \u00ab rectangle structurel \u00bb \u00e0 l\u2019int\u00e9rieur duquel la visi\u00e8re sera d\u00e9velopp\u00e9e.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_03-1024x576.jpg\" alt=\"Trac\u00e9 du rectangle structurel de la visi\u00e8re \u00e0 partir de lignes parall\u00e8les \u00e0 l\u2019axe du rayon th\u00e9orique rt\" class=\"wp-image-6244\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_03-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_03-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_03-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_03-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_03-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_03-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">\u00c0 partir des deux angles inf\u00e9rieurs du rectangle structurel, on reporte vers le centre la mesure correspondant \u00e0 la longueur de visi\u00e8re (<strong>lv<\/strong>).<\/p>\n\n\n\n<p class=\"text-justify\">Par les points obtenus, on trace des perpendiculaires \u00e0 la ligne inf\u00e9rieure jusqu\u2019\u00e0 leur intersection avec la ligne parall\u00e8le sup\u00e9rieure.<\/p>\n\n\n\n<p class=\"text-justify\">Les points d\u2019intersection obtenus constituent les centres des arcs d\u2019arrondi de la visi\u00e8re. Le rayon de ces arcs est \u00e9gal \u00e0 la longueur de visi\u00e8re (<strong>lv<\/strong>).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/visiera-1024x576.jpg\" alt=\"Centres et rayons des arcs d\u2019arrondi de la visi\u00e8re d\u00e9termin\u00e9s par la longueur lv\" class=\"wp-image-6251\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/visiera-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/visiera-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/visiera-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/visiera.jpg 1300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">On efface les lignes auxiliaires du trac\u00e9 pour ne conserver que le contour d\u00e9finitif de la visi\u00e8re.<\/p>\n\n\n\n<p class=\"text-justify\">L\u2019axe de sym\u00e9trie obtenu \u2014 correspondant \u00e0 la prolongation du rayon th\u00e9orique (<strong>rt<\/strong>) additionn\u00e9e de la longueur de visi\u00e8re (<strong>lv<\/strong>) \u2014 constitue le droit-fil de la pi\u00e8ce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\" id=\"tavolaValori\">Tableau des valeurs de la casquette<\/h2>\n\n\n\n<p class=\"text-justify\">Les valeurs suivantes permettent de construire n\u2019importe quelle taille de casquette en maintenant une coh\u00e9rence proportionnelle entre couronne, visi\u00e8re et ouverture arri\u00e8re.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_11-1024x576.jpg\" alt=\"Tableau technique avec circonf\u00e9rence, rayon, base du panneau, hauteur de calotte, largeur et longueur de visi\u00e8re\" class=\"wp-image-6270\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_11-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_11-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_11-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_11-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_11-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_11-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><strong>Variables horizontales:<\/strong><\/h4>\n\n\n\n<p>0 = nouveau-n\u00e9 ; (3, 6, 12) m = mois ; (2, 4, 6\/7, 10, 13\/14) a = ans<\/p>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><strong>Variables verticales:<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>k<\/td><td class=\"has-text-align-right\" data-align=\"right\">tour de t\u00eate<\/td><\/tr><tr><td>ioc<\/td><td class=\"has-text-align-right\" data-align=\"right\">indice d\u2019ovalit\u00e9 cr\u00e2nienne<\/td><\/tr><tr><td>l<\/td><td class=\"has-text-align-right\" data-align=\"right\">diam\u00e8tre cr\u00e2nien ant\u00e9ro-post\u00e9rieur<\/td><\/tr><tr><td>w<\/td><td class=\"has-text-align-right\" data-align=\"right\">diam\u00e8tre cr\u00e2nien bilat\u00e9ral<\/td><\/tr><tr><td>de_q<\/td><td class=\"has-text-align-right\" data-align=\"right\">diam\u00e8tre \u00e9quivalent<\/td><\/tr><tr><td>hc<\/td><td class=\"has-text-align-right\" data-align=\"right\">hauteur de calotte<\/td><\/tr><tr><td>bgb<\/td><td class=\"has-text-align-right\" data-align=\"right\">base de panneau basse<\/td><\/tr><tr><td>bgm<\/td><td class=\"has-text-align-right\" data-align=\"right\">base de panneau moyenne<\/td><\/tr><tr><td>bga<\/td><td class=\"has-text-align-right\" data-align=\"right\">base de panneau haute<\/td><\/tr><tr><td>gb<\/td><td class=\"has-text-align-right\" data-align=\"right\">panneau bas<\/td><\/tr><tr><td>gm<\/td><td class=\"has-text-align-right\" data-align=\"right\">panneau moyen<\/td><\/tr><tr><td>ga<\/td><td class=\"has-text-align-right\" data-align=\"right\">panneau haut<\/td><\/tr><tr><td>a5g<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de base du panneau (5 pi\u00e8ces)<\/td><\/tr><tr><td>a6g<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de base du panneau (6 pi\u00e8ces)<\/td><\/tr><tr><td>a7g<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de base du panneau (7 pi\u00e8ces)<\/td><\/tr><tr><td>a8g<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de base du panneau (8 pi\u00e8ces)<\/td><\/tr><tr><td>ve<\/td><td class=\"has-text-align-right\" data-align=\"right\">angle de visi\u00e8re \u00e9troite<\/td><\/tr><tr><td>vm<\/td><td class=\"has-text-align-right\" data-align=\"right\">angle de visi\u00e8re moyenne<\/td><\/tr><tr><td>va<\/td><td class=\"has-text-align-right\" data-align=\"right\">angle de visi\u00e8re large<\/td><\/tr><tr><td>rt<\/td><td class=\"has-text-align-right\" data-align=\"right\">rayon th\u00e9orique (tour de t\u00eate)<\/td><\/tr><tr><td>lvc<\/td><td class=\"has-text-align-right\" data-align=\"right\">longueur de visi\u00e8re courte (0,62 \u00d7 rt)<\/td><\/tr><tr><td>lvm<\/td><td class=\"has-text-align-right\" data-align=\"right\">longueur de visi\u00e8re moyenne (0,75 \u00d7 rt)<\/td><\/tr><tr><td>lvl<\/td><td class=\"has-text-align-right\" data-align=\"right\">longueur de visi\u00e8re longue (0,87 \u00d7 rt)<\/td><\/tr><tr><td>hap<\/td><td class=\"has-text-align-right\" data-align=\"right\">hauteur de l\u2019ouverture arri\u00e8re<\/td><\/tr><tr><td>aa5p<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de l\u2019ouverture arri\u00e8re (5 pi\u00e8ces)<\/td><\/tr><tr><td>aa6p<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de l\u2019ouverture arri\u00e8re (6 pi\u00e8ces)<\/td><\/tr><tr><td>aa7p<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de l\u2019ouverture arri\u00e8re (7 pi\u00e8ces)<\/td><\/tr><tr><td>aa8p<\/td><td class=\"has-text-align-right\" data-align=\"right\">largeur de l\u2019ouverture arri\u00e8re (8 pi\u00e8ces)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_9a1565-7d .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_9a1565-7d .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_9a1565-7d\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">D\u00e9pi\u00e8cement de la casquette<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_10-1024x576.jpg\" alt=\"Patron d\u00e9compos\u00e9 avec panneaux de calotte, visi\u00e8re et bande inf\u00e9rieure\" class=\"wp-image-6260\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_10-1024x576.jpg 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_10-300x169.jpg 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_10-768x432.jpg 768w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_10-1536x864.jpg 1536w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_10-2048x1152.jpg 2048w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2026\/02\/v_10-1320x743.jpg 1320w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"text-justify\">Les pi\u00e8ces des panneaux seront coup\u00e9es dans le tissu principal (marron), dans l\u2019entoilage (orange) et, \u00e9ventuellement, dans la doublure (gris).<\/p>\n\n\n\n<p class=\"text-justify\">Les visi\u00e8res sont coup\u00e9es dans le tissu principal, bien que, dans certains cas, elles puissent \u00eatre r\u00e9alis\u00e9es dans des tissus contrast\u00e9s ou imprim\u00e9s.<\/p>\n\n\n\n<p class=\"text-justify\">La bande int\u00e9rieure peut \u00eatre confectionn\u00e9e dans le m\u00eame tissu principal ou r\u00e9alis\u00e9e \u00e0 l\u2019aide d\u2019une bande pr\u00e9fabriqu\u00e9e.<\/p>\n\n\n\n<p class=\"text-justify\">Structurellement, dans la casquette de baseball classique, la bande int\u00e9rieure mesure <strong>3 cm<\/strong>.<br>Bien que cette mesure constitue le standard, de l\u00e9g\u00e8res variations peuvent \u00eatre pr\u00e9vues selon l\u2019\u00e2ge:<\/p>\n\n\n\n<p class=\"text-justify\">\u2022 Adultes \u2192 3 cm<br>\u2022 Jeunesse \u2192 3 cm<br>\u2022 Enfant \u2192 peut \u00eatre r\u00e9duite \u00e0 2,5 cm pour une meilleure proportion visuelle<br>\u2022 B\u00e9b\u00e9 \u2192 entre 2 et 2,5 cm fonctionne g\u00e9n\u00e9ralement mieux<\/p>\n\n\n\n<p class=\"text-justify\">En compl\u00e9ment de ces pi\u00e8ces, on utilisera une bande de propret\u00e9 destin\u00e9e \u00e0 recouvrir les coutures int\u00e9rieures ; sa largeur d\u00e9pendra de la valeur de couture pr\u00e9vue dans le patron.<\/p>\n\n\n\n<p class=\"text-justify\">Il faudra \u00e9galement pr\u00e9voir un bouton recouvert pour le sommet (c\u00e9nit) de la casquette et, probablement, un second bouton de plus petit diam\u00e8tre pour la finition int\u00e9rieure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading text-justify has-medium-font-size\">Baseball Cap \u2013 In One Minute<\/h2>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-9-16 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Construcci\u00f3n geom\u00e9trica del patr\u00f3n de gorra de b\u00e9isbol\" width=\"563\" height=\"1000\" src=\"https:\/\/www.youtube.com\/embed\/cd9XTyH5sR8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"text-justify\">Si vous souhaitez voir le processus r\u00e9sum\u00e9 en format visuel bref, voici le <strong>Short <\/strong>correspondant. Perdez une minute\u2026 et offrez vos oreilles \u00e0 un ragtime du grand <strong><a href=\"https:\/\/fr.wikipedia.org\/wiki\/Scott_Joplin\" type=\"link\" id=\"https:\/\/fr.wikipedia.org\/wiki\/Scott_Joplin\">Scott Joplin<\/a><\/strong>.<\/p>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-5613_76db5a-61 .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-5613_76db5a-61 .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-5613_76db5a-61\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\">Patron personnalis\u00e9<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/10\/enConstruccion2000-1024x576.png\" alt=\"Dessin d\u2019un ma\u00e7on posant des briques devant un jardin avec fontaine, symbole d\u2019un travail en cours de construction\" class=\"wp-image-2860\" srcset=\"https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/10\/enConstruccion2000-1024x576.png 1024w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/10\/enConstruccion2000-300x169.png 300w, https:\/\/tevipa.com\/blog\/wp-content\/uploads\/2025\/10\/enConstruccion2000.png 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u00c9tude technique et g\u00e9om\u00e9trique de la casquette de baseball : d\u00e9finition des \u00e9l\u00e9ments structurels, syst\u00e8me proportionnel des hauteurs de calotte, construction math\u00e9matique des panneaux, calcul pr\u00e9cis de la visi\u00e8re et gradation coh\u00e9rente pour toutes les tailles. Une approche structur\u00e9e reliant patronage et proportion.<\/p>\n","protected":false},"author":1,"featured_media":5605,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1347,1010,1101,1357,605],"tags":[1381,1369,1964,64,72,145,169,257,249,265,692,48,56,680],"class_list":["post-5613","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accessoire","category-blog-fr","category-blog-short-fr","category-casquette","category-patron-fr","tag-accessoire","tag-casquette","tag-casquette-de-baseball","tag-como-cubrir-un-cuerpo-fr","tag-comocubriruncuerpo-fr","tag-creation-de-mode","tag-ecole-de-mode","tag-modelisme","tag-patron-fr","tag-patrons","tag-technique-de-modelisme","tag-tele-virtual-patronage-fr","tag-televirtualpatronage-fr","tag-tutoriel-de-modelisme"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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