| 摘要 |
<p>A disc-brake of the kind comprising a bracket-shaped fixed support, a rotating disc rigidly fixed to the member to be braked, two brake-shoes movably mounted perpendicular to the plane of the disc and on each side of this latter, an operating unit and a transfer member movable perpendicularly to the plane of the disc, the operating unit acting directly on a first of the brake-shoes and on the second brake-shoe through the intermediary of the transfer member, the fixed support comprising a side-plate parallel to the plane of the disc and a return member perpendicular to the plane of the disc and facing the edge of this latter. The side-plate comprising, facing the operating unit, a housing for the first brake-shoe, the second brake-shoe comprising two extensions co-operating in abutment with the return member, the operating unit comprises a cylinder in which two pistons are mounted to slide in opposite directions, one of the pistons acting on the first brake-shoe and the other on the transfer member, this latter being constituted by a ring surrounding the fixed support, the operating unit, the brake-shoes and part of the disc.</p> |
