Adjustable armrest device
US9016793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Dec 18, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/767
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An adjustable armrest includes a housing with opposite walls. Each of the walls has a bore formed in it. The boxes support a pivot pin with a gear so that the armrest is pivotable on the pin. A ratchet with a pawl is pivotably connected to and carried by the armrest. The ratchet is also configured so that the pawl may engage the gear to define incremental ratcheting movement of the armrest on the pin when the armrest is pivoted in one direction. There is also provided a cam ring selectively movable with the armrest for rotational engagement with the gear. The cam ring has an exterior cam surface that contacts a portion of the ratchet and pivots the ratchet clear of engagement with the gear when the armrest is pivoted in another direction. The new armrest incorporates fewer components lowering cost of production, improving torsion force and load bearing capabilities, improving life of the furniture piece and strengthening armrest and furniture piece assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.