Base manipulation device for office chair
US6419320B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Feb 28, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C3/03
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A base manipulation device for an office chair includes a bottom plate having locking slots and pivoted with a chair base which has a rotation plate provided with a pivot plate and a drive plate. An operation bar is pivoted on the pivot plate and has a distal end pressed on the pneumatic bar. A positioning plate is secured on a rod which is moved with the drive plate. When the operation bar is driven to pivot vertically, the pneumatic bar is driven to adjust a height of a seat. When the operation bar is driven to move horizontally, the rotation plate is rotated to move the drive plate which moves the rod which moves the positioning plate to insert into or detach from one locking slot of the bottom plate, thereby achieving a purpose of adjusting an angle of inclination of the seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.