Folding chair with lumbar support and flexible back support
US6345863B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C4/24
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A folding chair has a support frame with a back support portion, front leg portions, and rear legs. A seat is pivotally coupled to the support frame. A flexible back support is coupled to the support frame, and has a lumbar support member extending down from the back support to reach a lumbar region of a user's back. The lumbar support member extends from the back support into a space between the back support and seat. The seat pivots in a downward direction away from the back support and lumbar support ID member, so that the seat folds without interfering with the lumbar support member. The back support also has a perimeter flange disposed across the rigid back support perimeter, and free to move with respect to the rigid support frame in response to a load applied to the flexible back support. The perimeter flange extends across a gap created between the flexible back support and the support frame, such that when a load is applied to the back support and the back support flexes, causing the gap to open, the perimeter flange conceals the gap as the flexible back support goes from a loaded position to an unloaded position, thereby preventing pinching of articles of clothing or skin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.