Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1993-07-26
1995-02-14
Graham, Matthew C.
Brakes
Wheel
Axially movable brake element or housing therefor
188 111, F16D 6502
Patent
active
053886704
ABSTRACT:
An anti-rattle spring (11) is mounted in a backing plate (31) of one a pair of opposed backing plate and friction pad assemblies 15 in a generally planar parallel relationship with a rotor (17) engaging friction surfaces and stationary torque support members (19,38). The spring (11) comprises a base portion (21) disposed in a plane which is generally parallel to the planes of the friction surfaces. The base portion (21) is fastened to one of the pads (15) through an elongated boss (39) in backing plate 31 and a corresponding hole (45) in the backing plate (31). The relationship between the elongated hole (45) and boss (39) prevents the anti-rattle spring (11) from rotating on the backing plate 31. The spring (11) also includes a web portion (23) which extends generally perpendicularly from the base portion (21) and a U-shaped resilient cantilevered blade (25) which extends from the web portion (23). The curved blade ( 25) has a free end (27) which engages the torque support member (19) to provide a resilient biasing between the torque support member (19) and the pad (15). The curved resilient cantilevered blade (25) extends initially from the web portion (23) in a direction away from the torque support member (19) and is subsequently curved back toward and into engagement with the torque support member (19). There is also a relatively flat resilient cantilevered blade (29) extending generally orthogonally from the base portion (21) in a direction opposite the web portion (23). This blade (29) will engage the brake rotor (17) during brake operation only if the thickness of the friction material of the outer brake assembly (15) is less than a predetermined thickness, thus providing an audible wear-limit warning.
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Clark Neil J.
Conger Steven B.
Kuskye Ralph G.
Allied-Signal Inc.
Graham Matthew C.
McCormick Jr. Leo H.
Palguta Larry J.
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