Variable friction hinge
US4850081A · kind A · utility
16Cited by
6References
5Claims
0Family size
Inventor
Key dates
| Filing date | Mar 25, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Mar 25, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hinge comprises first and second components (10,12) for attachment to respective structural members. A substantially cylindrical surface (26) on the second component (12) snap-fits into a part-cylindrical bearing surface (20) on the first component (10). The components (10,12) have interengaging formations which act to resist closing over a predetermined arc. In one embodiment, one set of interengaging formations comprises blades (28) sliding in slots (22), and another set comprises protrusions (32,34).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.