Chair
US8783770B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 11, 2009 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/74
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A chair includes: a backrest with a waist support projecting part; a horizontal forward seat; a backward seat pivotally supported so as to be able to swing downward relative to the forward seat; a leg support pivotally supported at a front end of the forward seat; links for changing a positional relation between the rear end of the backward seat and the lower end of the backrest so that a distance from the waist support projecting part to the backward seat is reduced from a standing posture to a tilted posture as the backrest is tilted backward; and a connection link for connecting the lower end of the backrest and a part of the leg support lower than the upper end of the leg support so as to cause the leg support to swing forward as the backrest is tilted backward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.