Integrated disc brake and drum brake construction

Details Integrated disc brake and drum brake construction Integrated disc brake and drum brake construction

1989-10-23

1991-02-26

Halvosa, George E. A.

Brakes

Wheel

Axially and transversely movable

188 18R, 188 18A, 188 725, 188 7345, 188 7347, 188205R, 188206A, 192 65, 192115, F16D 6300

Patent

active

049954814

ABSTRACT:
The present invention comprises an integrated disc brake (50) and drum brake (120) construction. A support member (12) is supported by a vehicle axle (14) and extends radially outwardly to provide support for a housing (52) of the disc brake (50). The housing (52) is secured by bolts (93 or 94) to the support member (12), the housing (52) having through openings (54) for receiving rod members (75). The rod members (75) each have one end (76) secured to the support member (12) and a second part (90) and the other end has an opening (77) for an internal bore (78) extending therein. The disc brake (50) includes an axially movable yoke (60) attached to guide pins (82) extending into bores (78) of the rods (75) for slidable movement therein. The second part (90) extends radially to provide support for an inner brake pad (20) and may extend axially away from the housing (52) to provide an anchor support (91) for shoulders (132, 142) of drum brake shoes (130, 140). The support member (12) supports a mechanical actuator (121) which may be operated to bias the drum brake shoes (130, 140) into engagement with a drum portion (42) of the brake disc (40) in order to effect a parking brake operation.

REFERENCES:
patent: 3122221 (1964-02-01), Rucker
patent: 3447646 (1969-06-01), Pace
patent: 3478844 (1969-11-01), Beuchle
patent: 3712422 (1973-01-01), Haraikawa et al.
patent: 3835970 (1974-09-01), Haraikawa
patent: 4109766 (1978-06-01), Inoue et al.
patent: 4162721 (1979-07-01), Moriya
patent: 4234236 (1980-11-01), Inbody
patent: 4512446 (1985-04-01), Chuwman et al.

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