公开(公告)号：US5722300A

公开(公告)日：1998-03-03

申请号：US704459

申请日：1996-08-16

申请人： Terry Edward Burkhard ,  Douglas Matthew Schneider

发明人： Terry Edward Burkhard ,  Douglas Matthew Schneider

IPC分类号： B62D1/18 ,  B62D1/185 ,  B62D1/19 ,  F16C3/03 ,  F16C29/02 ,  F16C33/20 ,  F16D3/06

CPC分类号： B62D1/185 ,  B62D1/192 ,  F16C29/02 ,  F16C3/03 ,  F16C33/20 ,  F16D3/06

摘要： A motor vehicle steering column including a first mast jacket element mounted on a body of the vehicle, a second mast jacket element telescoped into a cylindrical passage in the first element, and a split bushing between the first and second elements. The bushing has a lip on an outside surface thereof which seats against the passage in the first mast jacket element to define a closed circumferential chamber around the bushing interrupted by the split in the latter. A plastic shim is molded in place in the closed circumferential chamber by injecting liquid plastic under pressure through a port in the first mast jacket element. Liquid plastic fills the closed circumferential chamber and clamps an inside surface of the bushing against an outer surface of the second mast jacket element to eliminate lash. Shrinkage of the plastic in the closed circumferential chamber reduces the contact pressure between the bushing and the second mast jacket element to minimize frictional drag.

摘要翻译： 一种机动车辆转向柱，包括安装在车辆本体上的第一桅杆护套元件，可伸缩到第一元件中的圆柱形通道中的第二桅杆护套元件，以及在第一元件和第二元件之间的开口衬套。 衬套在其外表面上具有唇部，其位于第一桅杆护套元件中的通道上，以限定围绕衬套的闭合的周向室，其由后者中的裂口中断。 通过在第一桅杆护套元件中的端口上注入液体塑料在压力下将塑料垫片模制在封闭圆周室中的适当位置。 液体塑料填充封闭的圆周室并将衬套的内表面夹紧在第二桅杆护套元件的外表面上以消除睫毛。 封闭圆周室中塑料的收缩减小了衬套和第二桅杆护套元件之间的接触压力，以最小化摩擦阻力。