Armrest device for adjusting inclination angle of backrest
US11000127B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Nov 12, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/443
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An armrest device for adjusting an inclination angle of a backrest. The armrest device includes a side connecting bracket and an armrest. A lower end of the side connecting bracket is fixedly connected with a seat cushion. Right ends of the side connecting bracket and the armrest are rotatably connected with the backrest. An upper end of the side connecting bracket is fixedly connected with a positioning seat. An upper end of the positioning seat extends to an inner cavity of the armrest. The positioning seat shifts the inclination angle of the backrest and limits a position of the backrest through a positioning mechanism. A first spring limiting a movement of the armrest in an X direction and a second spring limiting a movement of the armrest in a Z direction are disposed between the positioning seat and the armrest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.