Chassis of swivel chair
US10178913B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2014 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Mar 26, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/44
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A gravity self-adapted chassis of chair has the first plug pin, second plug pin, third plug pin, forth plug pin, tilting plate, first connecting rod, and the second connecting rod of the chassis form into a four-point connecting rod mechanism so as to form the conduction of the force, the backrest is fixedly connected with the tilting plate to offer the driving force of the four-point connecting rod mechanism, the gravity applied onto the seat by the users forms into the reset force applied onto the four-point connecting rod mechanism through the third plug pin hinged with the bracket, and the driving force and the reset force of the four-point connecting rod mechanism form into the confrontation relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.