Shaped junction portions of tubes of an articulated seat frame
US5050932A · kind A · utility
21Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1989 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Oct 11, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In the shaped junction portion, each end of the seat and back frame is deformed in order to obtain a flattened portion in a central area conveniently stiffened by thickened areas, raised edges, or protruding outer lips providing thereby for a perfect application of the shaped end of the tube onto a face of a flange of the articulation mechanism, these parts being thereafter connected together, junction studs of each flange of the articulation inclination being used for a respective centering of the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.