Load compensator for height adjustable table
US9591920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2015 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Jan 8, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47B2200/0052
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A table assembly, the assembly comprising a first member having a length dimension parallel to a substantially vertical extension axis, a second member supported by the first member for sliding motion along the extension axis between at least an extended position and a retracted position, the second member forming an internal passageway, a table top mounted to one end of one of the first and second members, a spring that generates a variable spring force that depends at least in part on the degree of spring loading, the spring having first and second ends, aligned substantially parallel to the vertical extension axis, located at least partially within the internal passage formed by the second member and linked to each of the first and second members and a rotatable cam member engaged with the spring, the cam member and spring applying a force between the first and second members tending to drive the second member into the extended position, the cam member rotating around an axis as the second member moves between the extended and retracted positions, the rate of cam member rotation changing in a non-linear fashion as the second member moves toward the extended position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.