Inspection device for headrest return prevention mechanism
US7784369B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2006 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M17/0078
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inspection device 1 is provided to inspect a headrest return prevention mechanism 50 that prevents return of a headrest at a position supporting the head of a seated person by moving forward at a rear collision. The headrest return prevention mechanism 50 is provided with a bracket 52 and an engagement piece 51 which can return to a normal position again after being displaced from the normal position to a fixed position. The inspection device 1 comprises a base 11, a clamp mechanism 12 that fixes the bracket 52 to the base 11, a load applying mechanism 13 that applies a load to the engagement piece 51 so as to displace it from the normal position to the fixed position, a displacement sensor 14 that measures the fixed position when the engagement piece 51 is displaced from the normal position to the fixed position, and a computer 15 that determines whether the engagement piece 51 has been displaced to a predetermined fixed position or not based on the fixed position measured by the displacement sensor 14. Thus, a defective product that is not displaced to the predetermined fixed position can be appropriately determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.