Steering column device for absorbing impact energy
US9623896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2016 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Mar 7, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D1/184
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a steering column device, a small-diameter part of an operating shaft on one side of a step part on the operating shaft between a pair of clamp parts penetrates through an impact absorbing slot along a laminating direction. By operating an operating lever, the dimension of cam mechanism in the direction of the operating shaft is increased. Consequently, between the step part and an inner face of the other clamp part, a movable-side friction plate is brought into pressure contact with a stationary-side friction plate to be held. In this situation, when a load exceeding a set value is applied to the steering column device, the movable-side friction plate slides on the stationary-side friction plate to absorb the impact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.