Device for adjusting the height of the backrest of an office chair
US8579376B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 1, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Dec 30, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/46
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device for adjusting the height of the backrest of an office chair having a backrest unit at the rear side of a seat body. The height adjustment may take place to achieve the optimal resting angle according to the different body shapes, personal requirements and needs of the users. In moving upward to adjust the height, an automatic engagement is achieved in the predetermined position. Moreover, an automatic return to the lowest position is achieved as well in reaching the highest position. It is done without any tools or control buttons and fulfills the requirements on the user-friendly operation and a practical use. In addition, a waistrest is located at the position of the waist of the user for providing an optimal resting comfort by means of the pivoted and telescopic structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.