| 摘要 |
A no-lash telescoping steering shaft (10) comprises first and second telescopically arranged parts (12, 18) which are configured to transmit torque therebetween. The first and second parts carry an axially and radially movable locking piece (68) engaging the first and second parts at points which are axially spaced apart. The locking piece is coupled for axial movement with the inner of the two parts and frictionally engages the outer part to prevent relative axial movement thereof. Because the locking piece engages the first and second parts at axially spaced points, it creates a moment therebetween. The moment opposes side-to-side relative movement of the two parts in a first axial plane. The moment also urges cooperating surface (86, 88) of the two parts into engagement. The cooperating surfaces resist side-to-side relative movement of the two parts in a second axial plane which is substantially perpendicular to the first plane and also eliminate rotational lash from the steering shaft. |
