Disk brake device having a piston with an air vent groove

Details Disk brake device having a piston with an air vent groove Disk brake device having a piston with an air vent groove

1995-07-19

1996-03-19

Oberleitner, Robert J.

Brakes

Wheel

Axially movable brake element or housing therefor

188370, F16D 5518

Patent

active

054997011

ABSTRACT:
A disk brake device is provided which is easier to assemble, and which prevents damage to the seal. One or more air vent grooves are molded to extend from the boot groove (5a) on piston (5), wherein in the axial direction, the length of one leg (9a) of the dust boot (9) inserted into piston (5) is shorter than the length of the air vent groove (5b), and the length from the bottom face of the cylinder cavity (2e) to the front end of the seal groove (2f) is shorter than the length from the bottom face of piston (5) to the rear end of the air vent groove (5b).

REFERENCES:
patent: 4496033 (1985-01-01), Hall et al.
patent: 5150772 (1992-09-01), Pantale et al.
patent: 5366047 (1994-11-01), Beck et al.

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