Chair and backrest for chair
US10368645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2015 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Sep 26, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/42
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In a chair (1) and a backrest (30) for the chair of the invention, thin back plate extension parts (51) that are continuous with a front surface of a back plate part (31), thinned sections being formed in outside portions, in a width direction of the backrest, on the rear surface side; and reinforcing ribs (52) that protrude from inside end parts of the back plate extension parts (51) in the width direction of the backrest to a rear side are provided in regions of side edge support parts (32) above parts where fitting holes (33) are formed. The reinforcing ribs (52) extend substantially in an upward-downward direction, gradually increase in cross-sectional area on a bottom end side, are connected to the parts where the fitting holes (33) are formed. Additionally, a chair (1a, 101, 201) and a backrest (30) for the chair of the invention are provided with a plate-shaped back plate part (31) that receives a seated person's load, and a pair of side edge support parts (32) that are formed integrally with a pair of facing opposite sides of the back plate part (31) and function as strengthening members. A plurality of openings (34) for facilitating deformation of the back plate part (31) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.