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US 6,474,453 B2Granted
Disc brake, disc brake pad, and back plate for the disc brake pad
AssigneeNisshinbo Industries, Inc.
InventorYoshinori Sano
Life of this patent
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Abstract
A disc brake having a higher friction coefficient and heat-resistance and is formed with a disc rotor made of an aluminum alloy and a disc brake pad having a back plate. The back plate for the brake pad is molded from heat-resistant short fibers and a heat-resistant resin. For the heat-resistant short fibers, glass fibers having a length of 10 mm or less are used, and are incorporated at 50 wt. % or more to secure the strength. The heat-resistant resin is made of organic polymer and is mixed with the short fibers in a substantially power form.
Claims4
A disc brake pad for use with an aluminum alloy disc rotor, comprising:
- a back plate made of material which is a mixture of a heat-resistant resin of organic polymer and heat-resistant short fibers through heat mold;
- wherein said disc brake pad is produced by bonding a non-asbestos-based friction material which contains a non-asbestos non-metallic heat-resistant fiber component, a filler, and a heat-resistant resin, to said back plate;
- and
- wherein said back plate has a shrinkage percentage of 0.15% or less upon a heat treatment, and a difference between a shrinkage percentage of said back plate and that of said friction material which is bonded to the back plate is 0.1% or less.
1 more element
Dependencies are inferred from the claim text.