Importance

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Abstract

A disc brake assembly includes a disc rotor rotated with a wheel in a body, a mounting member fixed to a stational member of vehicles and having an arm portion in which a pair of grooves extending toward to the axial direction of the disc rotor are provided therein. A brake pad disposed to at least one side of the disc rotor and having a pair of ear portions which are outwardly projected at the center portion or the outer side of both ends in the rotational direction of the disc rotor of its backing plate, respectively and which are fitted into a pair of groove portion formed in the arm portion of the mounting member and slidably supported on the arm portion of the mounting member toward to the axial direction of the disc rotor. The brake pad has a backing plate in which end surfaces in the rotational direction of the disc rotor of the rotational center side of the disc rotor from the each ear portion are formed in wedge-shape in the diameter direction of the disc rotor and the mounting member has torque resisting surfaces opposed to the rotational center side of the disc rotor from each ear portion of the end surfaces of the backing plate in the rotational direction of the disc rotor at its arm portion and formed in V-shape in corresponding to the backing plate. Since the brake pad is held under a stable condition in the diameter direction and the rotational direction of the disc rotor and is prevented from movement, it is able to fundamentally prevent generation of the uncomfortable squeak noise of the disc brake assembly caused by movement of the brake pad.

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First Claim