Base plate for a chair
US7878598B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 2006 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Aug 30, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/40
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A flexible base board for a chair, easily bends into a desirable shape. The base board fits more appropriately to the body of the person seated on the chair following the shape of the person's body without pressing the back, etc., thereby providing the person with good sitting comfort. The flexible base board is used for the backrest, etc. of a chair. The base board has an upper shell (4), an intermediate shell (5), and a lower shell (6). A large number of holes (14) having substantially the same size are substantially uniformly formed in the entire shell (6). Also, a large number of holes (15) are formed in the entire surface of the intermediate shell (5), and each hole (15) has a greater transverse width than a hole (14) in the upper shell (4) and the lower shell (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.