| 摘要 |
1,149,633. Disc brake actuating mechanism. GIRLING Ltd. 9 June, 1966 [11 June, 1965], No. 24883/65. Heading F2E. Brake actuating mechanism includes a rotatable cam member 19 (Fig. 1) and a push rod 74 extending transversely to the rotational axis of the cam member, a rotary bearing assembly comprising a housing, a plurality of rollers 71 arranged in a group, and a cage 70 maintaining the rollers in position within the housing, wherein the housing and cage have registering apertures (73 for the cage) at a position angularly spaced from but axially aligned with the group of rollers. As applied to a disc brake, the push rod acts on the lower end of a cam lever 13 (Fig. 4), the rollers supporting the cam member 19 against the resulting transverse thrust. The other end of the lever 13 applies the brake pad 10 to the brake disc, acting through the intermediary of an automatically operable wear adjustment mechanism comprising an extensible strut 87, 88. The mechanism is that described in Specification 1,029,945. The pad 10 is slidably engaged by two pairs of faces 80, 80A and a pin 81 on the caliper 12. The lower end of cam lever 13 is also engaged by a piston 16 for hydraulic operation of the brake. |
