Caliper support key

Details Caliper support key Caliper support key

1992-09-14

1993-12-28

Oberleitner, Robert J.

Brakes

Wheel

Axially movable brake element or housing therefor

188 7343, 188 7345, F16D 6502

Patent

active

052731375

ABSTRACT:
The caliper support key (40) provides a low spring load/high damping support for a caliper (12) mounted on a support member (14). The caliper (12) includes at each circumferential side a recess (20) which may receive a protrusion (16, 18) from the support member (14). At one side of the caliper (12), the support key (40) is located between the protrusion (16) and recess (20). The support key (40) comprises a generally H-shaped key support member (40) receiving at one side thereof the protrusion (16) and the other side a stepped opening (49) defining portions of a first (50) and a second (52) cavity. A plunger (60) of the caliper support key (40) engages a surface (21) of the recess (20) in the caliper (12) and extends through the first cavity (50) and into the second cavity (52) with a small clearance (72) therebetween. A composite sealing ring ( 75) is disposed about the plunger (60) and engages the surface of the first cavity (50). A resilient spring (73) is located between the sealing ring (75) and a pair of flanges (64, 66) of the plunger (60) in order to bias the sealing ring (75) inwardly of the stepped opening (49). A fluid (79) is located within the stepped opening (49) of the caliper support key member (40) to provide a return, high damping force against said plunger (60).

REFERENCES:
patent: 1975145 (1932-09-01), Geyer
patent: 3625314 (1969-06-01), Rinker
patent: 3831717 (1974-08-01), Flaherty
patent: 4141436 (1979-02-01), Meyer
patent: 4355791 (1982-10-01), Dean
patent: 4560039 (1985-12-01), Bolenbaugh et al.
patent: 4793448 (1988-12-01), Bolenbaugh et al.

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