| 摘要 |
Mechanical actuating devices for disc brakes known in the art are of complicated construction and are composed of a large number of parts. The actuating device of the present invention reduces the number of parts by providing an actuating nut with an adjusting screw thread on its outer surface and by disposing the actuating nut in a threaded bore of an actuating or brake piston movably guided in a cylindrical bore of the brake caliper. The actuating nut and brake piston from an automatic brake clearance adjusting device in which the brake piston is progressively moved toward the brake disc on the actuating nut when the actuating stroke exceeds a predetermined amount due to wear of the brake pads. |
