Chair with adjustable backrest
US5397168A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1993 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Sep 2, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C20/045
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A seating apparatus including a frame, a member supported by the frame for movement relative thereto, a ratchet mechanism for affording movement of the member relative to the frame in a first direction from a first extreme position through a range of positions to a second extreme position and for preventing movement of the member relative to the frame in a second direction opposite to the first direction, the ratchet mechanism including a ratchet, and a one-piece pawl including a first portion engageable with the ratchet and a resilient portion for biasing the pawl into engagement with the ratchet, and a release mechanism for completely disengaging the ratchet and the pawl when the member is moved into the second extreme position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.