Chuck

Details Chuck Chuck

B - Operations, Transporting

23

B

B23B 31/12 (2006.01)

Patent

CA 2197202

Chuck (110) for use with a manual or powered driver including a nut (160) rotatably mounted on the chuck body (116) and in engagement with the threads of the chuck jaws. The chuck includes a self-contained antifriction bearing assembly (142) disposed between the nut (160) and a thrust ring (136), as well as a generally cylindrical front sleeve member (112) in driving engagement with the nut (160) and overlying a nose section (120) of the body of the chuck so that when the front sleeve member (112) is rotated with respect to the body member (116), the jaws (118) will be moved thereby. The chuck also includes a rust resistant decorative nosepiece (158) as well as an improved nut retainer member (143).

L'invention se rapporte à un mandrin (110) s'utilisant avec une unité de commande manuelle ou électrique et comportant un écrou (160) monté rotatif sur le corps (116) du mandrin et venant en contact avec des filets prévus dans les mâchoires du mandrin. Le mandrin comporte également un ensemble palier antifriction autonome (142) placé entre l'écrou (160) et une bague de poussée (136) ainsi qu'un manchon frontal généralemement cylindrique (112) placé en contact d'entraînement avec l'écrou (160) et recouvrant une section avant (120) du corps du mandrin de sorte que, lorsque le manchon frontal (112) tourne par rapport au corps (116), les mâchoires (118) sont déplacées. Le mandrin comporte aussi un nez (158) à fonction décorative, résistant à la rouille, et un élément de retenue (143) d'écrou amélioré.

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