Actuator for a chair mechanism lock
US5863099A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Aug 15, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C1/027
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An actuator for a chair mechanism lock moves locking members such as clutch leaves between an open position at which they are free to move relative to each other and a closed position at which they are pressed together. The actuator has a first arm which is connected on one side to the mechanism housing, and on the other side to a second arm. The second arm is in turn connected to the head of a bolt which engages the clutch leaves. The first arm incorporates a handle. In a relaxed position the actuator does not exert any pressure on the clutch leaves. To close the lock, the handle is pulled upwardly to bring the first and second arms over center at which they exert pressure on the clutch leaves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.