Chair
US11096495B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/44
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A flange part 31b is provided on a vertical surface 31a on the plate member PM of the front-rear swing part 3, the flange part 31b has a guide surface 31b1 extending to lateral direction and moving the rolling body 45 in the longitudinal direction, a lateral direction dimension of the guide surface 31b1 is greater than a thickness of the plate member PM, the flange part 31b and the portion of the plate member PM forming the vertical surface 31a around the flange part 31b are integrally formed of metal; and the flange part 31b has a shape that goes around the circumference of the guide hole 34 opened in the vertical surface 31a, and then, the rolling body 45 are provided independently to the left and right, to be able to a roll along the guide surface 31b1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.