| 摘要 |
1,105,672. Combined drum land disc brake. VAUXHALL MOTORS Ltd. 18 Aug., 1966 [10 Sept., 1965], No. 38695/65. Heading F2E. In a combined drum and disc brake assembly a brake drum 24 is fitted and attached at one end to the wheel hub 10 by means of screwed connections 20 and the other end of the. brake drum is provided with a wave-formed edge comprising alternately arranged projections 28 and apertures 30 such that a brake disc 32 may be connected to the projections 28 of the waveformed edge of the brake drum 24. The brake disc 32 is adapted to be engaged by means of friction pads 38, 40 urged into engagement with the disc by means of a caliper device 42 actuated by a wedge and roller actuator 44 adapted to be actuated by a hand brake lever (not shown). The brake drum 24 is adapted to be engaged by an internal shoe-drum brake 36 of conventional construction and cooling is effected both internally and externally of the drum by the air stream flowing respectively in and out of the drum apertures 30 and between the drum 24 in the wheel rim 22.
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