| 摘要 |
A parking actuator for a disc brake is disclosed which includes a pair of relatively rotatable actuating members. Oppositely facing recesses having inclined sides are provided in each of the members, and force-transmitting elements are received in these recesses. One of the members carries a nut which advances into engagement with the actuating piston of the brake when the one member is rotated relative to the brake housing. When a parking application is effected, the one member is first rotated relative to the housing to move the nut into engagement with the piston, whereupon the other member is rotated relative to the one member to drive the force-transmitting elements up the sides of the recesses to urge the one member and the piston in a brake-applying direction. |
