Diaphragm disc brake

Details Diaphragm disc brake Diaphragm disc brake

1978-12-21

1981-04-14

Reger, Duane A.

Brakes

Vehicle

Hub or disk

188366, 188 714, F16D 5542

Patent

active

042614422

ABSTRACT:
A braking system for controlling the rotational motion of one or more rotatable members such as vehicle wheels wherein an annular base member is stationarily mounted with respect to a concentric rotatable axle and a cup shaped drum is concentrically mounted on the axle for rotation therewith and enclosing the brake mechanism. A plurality of slots are formed on a portion of the base member and on the inner edge of the drum. A centrally positioned, split, annular, metallic disc has peripheral fingers directed radially outward to engage the slots on the drum and annular friction members are positioned on either side of this central disc. Each of the friction members has radially inwardly directed fingers for engagement with the slots on the base. The friction members, therefore, are held relatively stationary and the central disc rotates with the axle. The two friction members may be forced against the central disc by means of integral fluid bellows members pressurized from a fluid source under the influence of a master cylinder having a special two stage piston.

REFERENCES:
patent: 2417156 (1947-03-01), Dickson
patent: 2992705 (1961-07-01), Chisnell et al.
patent: 3188922 (1965-06-01), Cruse
patent: 3830345 (1974-08-01), Boyles
patent: 4102438 (1978-07-01), Rancourt

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