Height adjusting device for a chair
US6354664B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Nov 28, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/402
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A height adjusting device includes a mounting frame adapted to be secured to a seat member of a chair and provided with a plurality of retaining holes in an upright direction. A sliding member is adapted to be secured to a backrest member of the chair, and is mounted to be slidable relative to the mounting frame in the upright direction. The sliding member includes an upper portion which defines a passageway, and a lower portion. A lever member is pivotally mounted on the lower portion at a fulcrum and about a pivotal axis transverse to the upright direction, and includes actuating and retained ends respectively at two opposite sides of the fulcrum. The lever member is disposed such that the retained end is extendable through the passageway to be retained in one of the retaining holes, when the actuating end is manually operated to turn the retained end about the pivotal axis. A biasing member is disposed to bias the retained end to extend through the passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.