| 摘要 |
The object of this invention is to provide a disc brake device which increases a braking force in case of a small application force of braking to completely eliminate an impression or a feeling of delay in the braking effectiveness. To achieve this the invention comprises a servomechanism arranged between a back plate (3b) of at least one of a pair of frictional pads (3) and at least one of torque receiving members (2a) of a fixing member (2) for the frictional pads so as to generate a component of force (W2) in the axial direction of a disc rotor (1). A servo-stop-mechanism is provided which is adapted to stop the operation of the servomechanism when a braking force in the circumferential direction of the disc rotor (1) exceeds a predetermined value and a clearance between the one of the frictional pads (3) and the at least one torque receiving member (2a) is closed. Preferably the servomechanism is formed by a resilient component (10) fixed with one end thereof to one of the frictional pad (3) and the receiving member (2a) and resiliently connected with a free end thereof to the other one of the frictional pad (3) and the receiving member (2a). <IMAGE> |
