Rotary elbow with double shaft
US8496295B2 · kind B2 · utility
17Cited by
3References
10Claims
0Family size
Inventor
Key dates
| Filing date | Nov 25, 2010 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Oct 21, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2314/73
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A chair elbow capable of rotating with double shaft is disclosed. Two bearings are disposed on a mount board fixed on a chair. Each of the bearings connects one end of each of two rotating plates, while the other ends thereof are pivotally connected in a linear slot of a seat plate used for securing an armrest. The length of the slot is longer than the distance between the two bearings, and the latter is longer than the length of the rotating plates. Thus, the armrest on the seat plate can rotate against the mount board with 360 degrees and move forward and backward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.