Low sensitivity drum brake

Details Low sensitivity drum brake Low sensitivity drum brake

1986-09-23

1988-09-06

Halvosa, George E. A.

Brakes

Wheel

Transversely movable

188106A, 188334, 188363, F16D 5128, F16D 5130, F16D 5148, F16D 5150

Patent

active

047686316

ABSTRACT:
A drum brake comprises two brake shoes (4,5) which are operable hydraulically and/or mechanically. A first brake shoe (4) is supported trailingly in forward travelling direction and leadingly in backward travelling direction. In the forward travelling direction both brake shoes (4,5) are supported trailingly so as to obtain soft response behavior. And a lever (7) is supported at the second brake shoe (5), having one arm pressurized by the piston (2) of the wheel brake cylinder (1), while the other arm (7b) acts directly or indirectly on the first brake shoe (4).

REFERENCES:
patent: 2122296 (1938-06-01), Russell
patent: 2140385 (1938-12-01), Hunt et al.
patent: 2144025 (1939-01-01), LaBrie
patent: 2161640 (1939-06-01), Schnell
patent: 2206604 (1940-07-01), Fowler
patent: 2232308 (1941-02-01), Berglund
patent: 2280784 (1942-04-01), Berno
patent: 2347599 (1944-04-01), Forbes
patent: 3203512 (1965-08-01), Lepelletier
patent: 3554332 (1971-01-01), Harrison
patent: 3581847 (1971-06-01), Torii et al.
patent: 3717227 (1973-02-01), Rath
patent: 3941218 (1976-03-01), Torii

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