公开(公告)号：US20030014970A1

公开(公告)日：2003-01-23

申请号：US10242936

申请日：2002-09-12

申请人： LuK Lamellen und Kupplungsbau GmbH

发明人： Roland Welter ,  Peter Schaaf ,  Peter Giese ,  Ludwig Winkelmann ,  Gerhard Meyer

IPC分类号： F15B007/00

CPC分类号： B60T11/165 ,  B60T11/18 ,  F16B21/186 ,  F16D2025/081 ,  F16J1/22

摘要： A master cylinder for the clutch or brake of a motor vehicle has a housing for a reciprocable piston one end of which receives the spherical head of a reciprocable piston rod. The head is held in a desired position relative to the piston by a one-piece or composite coupling device having a first section exerting a pull or bearing upon the head of the piston rod and a second section which is confined in or surrounds the end of the piston and urges the first section in a direction to hold the piston rod against axial movements relative to the piston. The coupling device and/or the piston are or can be made of a plastic material, and the connection between such parts is or can be established by snap action.