F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
F16D 69/04 (2006.01) C22C 1/00 (2006.01) C22C 21/00 (2006.01) F16D 65/10 (2006.01) F16D 65/12 (2006.01)
Patent
CA 2410685
A brake drum includes a ring-shaped drum body (13), and a friction member (16) secured to the inner circumferential surface (18) of the drum body. Because the drum body is formed of a lightweight A1 alloy and the friction member is formed of an A1-base composite material, the brake drum can be reduced in weight as a whole. Further, because the friction member, having projecting portions (17a) formed on its outer periphery (17), is cast-enveloped by molten metal of the A1 alloy, the friction member and the drum body can be firmly fastened together. Thus, even when a great braking force is applied to the drum brake, the friction member can be prevented from being undesirably detached from the drum body.
La présente invention concerne un tambour de frein qui comprend un corps (13) de tambour en forme d'anneau, et un élément de frottement (16) fixé sur la surface (18) périphérique intérieure de ce corps de tambour. Du fait que ce corps de tambour est constitué d'un alliage A1 léger et que l'élément de frottement est constitué d'un matériau composite à base d'A1, ce tambour de frein peut être allégé dans son ensemble. De plus, du fait que l'élément de frottement possédant des parties projection (17a) sur sa périphérie extérieure (17) est enveloppé à la coulée par un métal fondu de l'alliage A1, cet élément de frottement et le corps de tambour peuvent être solidement fixés ensemble. Ainsi, même lorsqu'une grande force de freinage est appliquée sur ce frein à tambour, l'élément de frottement ne risque pas de se détacher indûment du corps de frein.
Echigo Takaharu
Koizumi Takashi
Nakao Yasuhiro
Shoji Hiroto
Sugaya Kunitoshi
Dennison Associates
Honda Giken Kogyo Kabushiki Kaisha
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