发明名称 |
Telescopic shaft for steering of vehicle, and telescopic shaft for steering of vehicle with cardan shaft joint |
摘要 |
A telescopic shaft for steering of a vehicle is assembled in a steering shaft and includes a male shaft and a female shaft that are so fitted as not to be rotatable but to be slidable. Rolling members are fitted through an elastic body for pre-load between at least a pair of axially-extending grooves formed in an outer peripheral surface of the male shaft and in an inner peripheral surface of the female shaft. A slide member is fitted in between at least another pair of axially-extending grooves formed in the outer peripheral surface of the male shaft and in the inner peripheral surface of the female shaft. When a steering toque is equal to or smaller than a predetermined level, the elastic body for the pre-load exhibits a low rigidity characteristic as the elastic body performs pre-load action. When the steering torque is equal to or larger than the predetermined level, the slide member exhibits a high rigidity characteristic as the slide member engages with the pair of axially extending grooves.
|
申请公布号 |
US7429060(B2) |
申请公布日期 |
2008.09.30 |
申请号 |
US20070833176 |
申请日期 |
2007.08.02 |
申请人 |
NSK LTD. |
发明人 |
YAMADA YASUHISA;SHODA AKIHIRO;OZAWA ATSUSHI;YAMADA TAKATSUGU |
分类号 |
B60R21/00;B62D1/16;B62D1/185;B62D1/20;F16C3/035;F16C25/08;F16C27/06;F16C29/00;F16C29/04;F16C29/12;F16C33/58;F16C33/62;F16D3/06 |
主分类号 |
B60R21/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|