Brake mechanism

Details Brake mechanism Brake mechanism

1983-12-09

1986-08-26

Halvosa, George E. A.

Brakes

Operators

Spring

92130A, 188 715, 188 721, 188369, 192 7027, 192 91R, F16D 6524

Patent

active

046077308

ABSTRACT:
A park brake mechanism includes a sealed housing enclosing a brake disc pack which is normally pressed together by a plurality of coil compression springs acting between an end of the housing and a pressure plate. Four hydraulic pistons are reciprocably mounted in the opposite end of the housing and connecting pins are received between the pistons and the pressure plate and serve to effect the release of the braking action between the disc pack discs when the pistons are pressurized. The pistons are in a rectangular pattern and diagonally opposite ones have threaded ports aligned therewith and adapted for receiving screws for stroking the pistons in the absence of pressure. A fluid pressure passage leading to the pistons contains a one-way orifice which operates to modulate the application of the brakes when pressure is relieved from the pistons.

REFERENCES:
patent: 2252906 (1941-08-01), Williamson
patent: 3306401 (1967-02-01), Dasse
patent: 3525421 (1970-08-01), Sickle et al.
patent: 3559772 (1971-02-01), Grombka
patent: 3791492 (1974-02-01), Neilsen
patent: 3863038 (1975-01-01), Kreitner et al.
patent: 4018140 (1977-04-01), Engle
patent: 4245724 (1981-01-01), Beck
patent: 4263991 (1981-04-01), Morgan et al.

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