Head rest device
US6634715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Feb 24, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/85
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A headrest device includes a stay member having a pair of vertical supporting bars adapted to be supported on a seat back of a vehicle seat and a horizontal supporting bar connecting the pair of vertical supporting bars, and a frame member having a connecting portion rotatably mounted on the horizontal supporting bar with a friction force existing between the horizontal supporting bar and the frame member. The frame member is provided with a slit extending along the connecting portion of the frame member and having ends extending towards the connecting portion. The portion of the frame defined by the slit can be resiliently deformed in the peripheral direction of the horizontal supporting bar and serve as a fulcrum point for adjusting the strength of the rotational friction force of the connecting portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.