Hinge structure with changeable frictional faces
US8060985B2 · kind B2 · utility
16Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jan 31, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2999/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention discloses a hinge structure with changeable frictional faces, comprising a spindle socketingly disposed with a first enclosing part and a second enclosing part with the openings of the first and second enclosing parts pointing to the same direction to change the frictional face for torsion from the second enclosing face to the first enclosing part and thus to extend the service life and further to form a frictional face with four steps of different torsions to meet the demands of customers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.