公开(公告)号：US06244393B1

公开(公告)日：2001-06-12

申请号：US09297008

申请日：1999-07-21

申请人： Michael Weidenweber ,  Helmut Rückert

发明人： Michael Weidenweber ,  Helmut Rückert

IPC分类号： F16D6516

CPC分类号： F16D65/18 ,  F16D2121/02 ,  F16D2127/02

摘要： A disc brake caliper including a brake piston movably arranged therein. The brake piston is sealed in relation to the brake cylinder by a sealing ring, which is arranged in a circumferential annular groove of the brake cylinder. The sealing ring functions to retract the brake piston in the brake cylinder after a braking operation in order to provide a clearance between a brake shoe and a brake disc. According to the present invention, the annular groove includes a recess, which is arranged in the area of transition between a groove wall and the cylinder surface . The contour line, which defines the cross-section of the recess, starting from the groove wall of the annular groove, passes from a convexly curved portion over into a concavely curved portion. This permits ensuring an unchangingly constant clearance between the brake shoe and the brake disc roughly irrespective of the hydraulic pressure.

摘要翻译： 一种盘式制动钳，包括可移动地布置在其中的制动器活塞。 制动活塞通过密封环相对于制动缸密封，该密封环布置在制动缸的周向环形槽中。 密封环用于在制动操作之后使制动缸中的制动活塞回缩，以便在制动蹄和制动盘之间提供间隙。 根据本发明，环形槽包括凹槽，该凹槽布置在槽壁和气缸表面之间的过渡区域中。 限定从环形槽的槽壁开始的凹部的横截面的轮廓线从凸出的弯曲部分穿过到凹入的弯曲部分中。 这样可以确保制动瓦和制动盘之间的间隙不变，而与液压无关。