Duo-servo parking brake

Details Duo-servo parking brake Duo-servo parking brake

1975-12-30

1977-04-19

Halvosa, George E. A.

Brakes

Wheel

Transversely movable

188325, 192 75, 192 99B, F16D 5122

Patent

active

040183122

ABSTRACT:
A duo-servo parking brake in which brake shoes are moved into contact with a brake drum on a wheel unit by a four-joint link assembly which is actuated by an actuation cable connecting to a pedal or handle actuable by the driver of a vehicle, and which is so disposed that the actuation cable may be led at a right-angle from the wheel unit and so avoid contact with vehicle suspension elements. Connections of links in the four-link assembly are all rotatory connections, whereby friction and wear of parts are reduced and improved transmission of braking force exerted by the actuation cable is achieved.

REFERENCES:
patent: 2006494 (1935-07-01), Bendix et al.
patent: 2036385 (1936-04-01), Amirault
patent: 2372319 (1945-03-01), Francois
patent: 3575266 (1971-04-01), Sitchin
patent: 3581847 (1971-06-01), Torii

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