Locking structure of tilting and telescopic steering column
US7611166B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Jul 17, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5956
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A locking structure of a steering column. A main housing is provided around a steering shaft and fixed to a car body. An insert pipe protrudes from the main housing. A sliding housing has an arc portion surrounding the insert pipe, a tightening block at each end, and a variable inner cross-section that changes with distance between the tightening blocks. An upper housing is tiltable relative to the sliding housing. A tilt plate is fixed to the upper housing, extends to the tightening block, and has an arc-shaped slot corresponding to a rotation distance of the tilt plate. A locking bolt passes through the arc-shaped slot of the tilt plate and through the tightening blocks. An operation lever is rotatably fitted on the locking bolt. A cam assembly variably applies a force to the tilt plates and the tightening blocks according to a rotation distance of the operation lever.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.