Play-free articulation for a seat with tipping backrest and its application to a seat with a backrest which can also be inclined
US5507561A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1994 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Dec 21, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An articulation having a fixed flange (21) secured to the seat part (11) and a movable flange (22) associated with the backrest (12), a bearing (30) made of male (31) and female parts (32), a lock (40) made of a fixed stop piece (41), of a movable latch (42) and of an elastic urging element (43), and an operating member (50) acting on the latch (42) counter to the elastic urging element (43). The articulation is such that at least one of these male (31) and female (32) parts has a non-circular configuration, and that the stop piece (41) has a cam-shaped profile and the latch (42) has a cam-follower-shaped profile and that the bearing (30) and the lock (40) are placed relative to one another in such a way that when the cam and cam follower are applied against one another the male part (31) and the female part (32) tend to move relative to one another in the direction which takes up the play between them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.