| 摘要 |
PCT No. PCT/AU92/00458 Sec. 371 Date Feb. 25, 1994 Sec. 102(e) Date Feb. 25, 1994 PCT Filed Aug. 31, 1992 PCT Pub. No. WO93/05313 PCT Pub. Date Mar. 18, 1993.A disc brake assembly has a pair of pivoted brake arms carrying brake pads located on respective opposite sides of a disc. The brake arms are biased towards each other by springs to clamp the brake pads against the disc. The disc brake assembly also includes a cam member having two double-sided cams, each of which co-acts with a cam follower mounted on a respective brake arm. The cam member is connected to an actuating cylinder. When the cylinder is energized, the inner cam surfaces drive the cam followers apart to release the brake. When the cylinder is not energized, the outer cam surfaces prevent outward movement of the cam followers thereby positively locking the brake pads against the disc. The disc brake also includes a mechanism for automatically adjusting the position of the brake pads to compensate for wear.
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