Noise preventing means for disc brakes

Details Noise preventing means for disc brakes Noise preventing means for disc brakes

1978-04-19

1979-05-22

Halvosa, George E. A.

Brakes

Wheel

Axially movable brake element or housing therefor

F16D 6500

Patent

active

041554302

ABSTRACT:
A noise or squeal preventing device for use in disc brakes of the type in which a friction pad is urged into engagement with a rotatable disc by a piston, working in an hydraulic cylinder of which the axis is substantially at right angles to the plane of the disc, in order to stop or decellerate the rotation of the disc, which noise preventing device including (a) a pair of shims or plate members, inserted between the friction pad and the piston with the object of preventing the noise which may occur when the brake is applied, one of which shims being partially cut out at a location wherein the same confronts with the inner end or the thrust giving end of the piston on that side of the axis of the piston with which any given point on the disc first comes into alignment and the other shim having no such a cut-out portion, and (b) a lubricating material such as grease applied at least between the pair of shims.

REFERENCES:
patent: 3113643 (1963-12-01), Botterill
patent: 3477551 (1969-11-01), Beuchle et al.
patent: 3563347 (1971-02-01), Hahm
patent: 3684061 (1972-08-01), Ogawa et al.

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