Electric parking brake mechanism

Details Electric parking brake mechanism Electric parking brake mechanism

2005-09-06

2005-09-06

Butler, Douglas C. (Department: 3683)

Brakes

Wheel

Axially movable brake element or housing therefor

C188S156000, C188S158000, C188S162000, C188S072800, C188S072700

Reexamination Certificate

active

06938736

ABSTRACT:
An electric parking brake mechanism characterized in an electric parking brake for pressing a friction member to a braked member via a force transmission converting mechanism for converting a rotational movement of an electric motor to a linear movement, including an input shaft connected to a side of the electric motor, an output shaft connected to a side of a brake mechanism for pressing the friction member to the brake member and a cam mechanism interposed between the input shaft and the output shaft, the cam mechanism is provided with a plurality of cam members and each having a cam face having a radius gradually increasing relative to a rotational center and in driving only a side of the output shaft, rotation of the output shaft is hampered by operating all of the plurality of cam members to constitute sides of large diameters.

REFERENCES:
patent: 5020386 (1991-06-01), Taig
patent: 5788340 (1998-08-01), Kobayashi
patent: 6390247 (2002-05-01), Drennen
patent: 10355224 (2004-06-01), None
patent: 4-108058 (1992-04-01), None
patent: 2000-514540 (2000-10-01), None

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