| 摘要 |
An automatic slack adjuster for vehicle brakes includes an annular housing, a splined bushing within the housing, and unidirectional clutch between housing and bushing, the bushing having an annular surface frictionally engaged by the surface of a ring having limited rotation. Brake pressure is applied to a rotatable brake actuating mechanism on the forward (i.e., power application) stroke by an amount equal to brake-application and slack. On the return (i.e., non-powered) stroke, slack adjustment is provided by limited rotation of the ring, while the housing continues freely to automatically reset the device to its null position. |
