{"id":303,"date":"2014-04-03T14:03:16","date_gmt":"2014-04-03T13:03:16","guid":{"rendered":"http:\/\/arwann.com\/?page_id=303"},"modified":"2015-05-08T10:31:26","modified_gmt":"2015-05-08T09:31:26","slug":"lassemblage-tenon-mortaise","status":"publish","type":"page","link":"http:\/\/arwann.com\/?page_id=303","title":{"rendered":"L’assemblage Tenon-Mortaise"},"content":{"rendered":"

\"bouton<\/a><\/a>Par Lama. Le coin des scouts<\/a> -> Forestage et installations<\/a><\/p>\n

Passons maintenant aux choses s\u00e9rieuses et aux exercices pratiques. Pour bien construire il faut ma\u00eetriser les techniques d\u2019assemblage et c\u2019est l\u00e0 le c\u0153ur du forestage scout. Il suffit de ma\u00eetriser un seul assemblage mais il faut parfaitement le poss\u00e9der. Toutes les autres techniques d\u2019assemblage que tu aurais pu voir dans des ouvrages de froissartage, il faut les mettre de c\u00f4t\u00e9 pour l\u2019instant. Apprenons seulement \u00e0 bien faire l\u2019assemblage par tenon et mortaise<\/b> c\u00f4nique<\/b>.
\nC\u2019est l\u2019assemblage le plus simple et le plus rapide \u00e0 r\u00e9aliser en m\u00eame temps que le plus solide. En outre il utilise de petits diam\u00e8tres de bois. Surtout pas besoin de gros troncs\u00a0!
\nLorsque cet assemblage sera ma\u00eetris\u00e9, et cela vient tr\u00e8s vite, n\u2019importe quel scout ou guide devient un cador des installations. \u00a0Cet assemblage r\u00e9sout \u00e0 lui seul quasiment tous les cas d\u2019assemblages possible. Par la suite, la ma\u00eetrise du bois brut et des outils acquise gr\u00e2ce \u00e0 l\u2019assemblage tenon-mortaise permettra de s\u2019attaquer \u00e0 n\u2019importe quel autre type d\u2019assemblage.
\n<\/b><\/p>\n

Un peu de m\u00e9canique<\/b>
\nComparons les capacit\u00e9s d\u2019un assemblage tenon-mortaise (Forestage) \u00e0 celles d\u2019un assemblage mi-bois chevill\u00e9 (froissartage).<\/p>\n

Le point de vue de l\u2019architecte
\n<\/strong>Il existe au moins deux grand principes pour r\u00e9aliser des constructions rigides\u00a0:<\/p>\n

La triangulation<\/strong> et l\u2019encastrement<\/strong>.<\/em><\/p>\n

Ces deux principes sont bons tous les deux mais ils ne sont pas employ\u00e9s pour les m\u00eames r\u00e9sultats ni pour les m\u00eames applications.<\/p>\n

Quelques exemples parleront d\u2019eux-m\u00eames :\"encastrement<\/a><\/em><\/p>\n

Retenons que le tenon-mortaise r\u00e9alise des encastrements presque parfaits. Avec cet assemblage il faut construire \u00ab\u00a0\u00e0 angle droit\u00a0\u00bb on fait des carr\u00e9s et des rectangles. En revanche il sera tr\u00e8s difficile de r\u00e9aliser des triangles avec le TM.<\/b><\/p>\n

En revanche l\u2019assemblage mi-bois chevill\u00e9 du froissartage est assez bon pour r\u00e9aliser des structures triangul\u00e9es (mais on fait aussi bien avec de bons br\u00ealages.) Si on voulait faire des carr\u00e9s ou des rectangles avec le MBC<\/b>, il faudrait imp\u00e9rativement mettre des diagonales (cordes ou perches) sinon tout se replie en parall\u00e9logramme.<\/p>\n

\"tenon<\/a><\/p>\n

Top Chrono\u00a0!
\n<\/b>Si les deux principes de construction (Tenon-Mortaise encastr\u00e9s et mi-bois chevill\u00e9) se valent en th\u00e9orie, il n\u2019en va pas de m\u00eame dans la pratique. Un assemblage TM se r\u00e9alise en 5 fois moins de temps qu\u2019un assemblage MBC. Avec un tout petit peu de pratique, un tenon se taille en 2 minutes et une mortaise normale se perce \u00e9galement en 2 minutes. Pour r\u00e9aliser un assemblage de m\u00eame performance en MBC il faut compter 20 mn. Et encore il n\u2019est pas tenu compte des plus gros diam\u00e8tres de bois rendus indispensables pour cette technique. En outre l\u2019ajustement final est toujours approximatif.<\/p>\n

Pr\u00e9parez la pharma\u00a0!
\n<\/strong>La question du temps pass\u00e9 est bien s\u00fbr importante lorsque les installations ne durent que 3 \u00bd\u00a0 jours mais il y a un autre avantage\u00a0: on se passe presque totalement du ciseau<\/a>. Et le ciseau est l\u2019outil le plus dangereux au camp. Une seule erreur et il se plante de plusieurs centim\u00e8tres dans les doigts ou la paume.<\/p>\n

Retour en haut<\/a>
\npage pr\u00e9c\u00e9dente : esprit du forestage<\/a><\/em>
\npage suivante : le tenon<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Par Lama. Le coin des scouts -> Forestage et installations Passons maintenant aux choses s\u00e9rieuses et aux exercices pratiques. Pour bien construire il faut ma\u00eetriser les techniques d\u2019assemblage et c\u2019est l\u00e0 le c\u0153ur du forestage scout. Il suffit de ma\u00eetriser un seul assemblage mais il faut parfaitement le poss\u00e9der. Toutes les autres techniques d\u2019assemblage que … Continuer la lecture de L’assemblage Tenon-Mortaise<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":121,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-303","page","type-page","status-publish","hentry"],"yoast_head":"\nL'assemblage Tenon-Mortaise -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/arwann.com\/?page_id=303\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L'assemblage Tenon-Mortaise -\" \/>\n<meta property=\"og:description\" content=\"Par Lama. Le coin des scouts -> Forestage et installations Passons maintenant aux choses s\u00e9rieuses et aux exercices pratiques. Pour bien construire il faut ma\u00eetriser les techniques d\u2019assemblage et c\u2019est l\u00e0 le c\u0153ur du forestage scout. Il suffit de ma\u00eetriser un seul assemblage mais il faut parfaitement le poss\u00e9der. 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