Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1989-03-30
1990-10-30
Halvosa, George E. A.
Brakes
Wheel
Axially movable brake element or housing therefor
188 726, 188106F, 192 7024, 192 703, F16D 55224
Patent
active
049662562
ABSTRACT:
An emergency or parking brake for motor vehicles equipped with a disc brake unit that can be provided with an actuating arrangement for disengagement and engagement of outboard brake pad structure against a rotor or disc sandwiched with respect to an inboard brake pad structure via a cam mechanism. In one embodiment the cam mechanism includes a camshaft that carries a cam member fixed thereto and pivotable by a lever spring biased in one direction although pivotable about an axis of the camshaft by a cable with a bifurcated member or fork attached thereto. In a further embodiment there is provided a pivotable lever having a shaft secured thereto and pivotable thereby with cam threads being provided on the outer periphery of the shaft which can mate complementary to similar cam threads of a screw nut held by a plate to one side of the outboard pad shiftable by the rotation of the shaft with the cam threads thereon to cause engagement of the outboard brake pad against the rotor or disc sandwiched and parallel between the outboard pad and an inboard brake pad.
REFERENCES:
patent: 1142880 (1915-06-01), Hartman
patent: 1843594 (1932-02-01), Baker
patent: 2063443 (1936-12-01), Lambert
patent: 2946408 (1960-07-01), Peras
patent: 3194349 (1965-07-01), Kershner et al.
patent: 3500968 (1970-03-01), Bosler
patent: 3545573 (1970-12-01), Barton
patent: 3626862 (1971-12-01), Korn et al.
patent: 3976168 (1976-08-01), Yamamoto
patent: 4036329 (1977-07-01), Anderson
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