Hinge structure for a sun visor or the like which features a single storage position snap action function
US4617699A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Jun 15, 1982 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | Jun 15, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60J3/0252
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shaft which pivotally supports a sun visor is formed with flat surfaces at longitudinally staggered positions and on opposite sides of the shaft, a spring is attached to the visor proper which has flat portions for engaging the flat surfaces so that a "snap action" is provided only when the visor is rotated into close proximity of a home position wherein the flat portions of the spring clamp down flatly on the flat surfaces. When the visor is rotated away from this home position the distortion of the flat portions of the spring produces a reaction which induces sufficient friction between the shaft and the spring to hold the visor in any given selected position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.