Interlockingly extending driving mechanism for electric sofa
US11564496B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2021 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Aug 31, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C17/04
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An interlockingly extending driving mechanism for an electric sofa, including a backrest adjusting assembly provided in a sofa seat frame. A footrest assembly is provided at one end, remote from the backrest, of the backrest adjusting assembly, and the backrest adjusting assembly is connected with the footrest adjusting assembly. The footrest adjusting assembly includes a supporting rod which is vertically and fixedly provided on the surface of one side of the backrest adjusting assembly, a driving unit is provided on the supporting rod, the driving unit is drivingly connected with a transmitting screw, an interlocking unit is movably connected to one end, close to the footrest, of the transmitting screw, the interlocking unit is movably connected with the footrest, and when the transmitting screw drives the interlocking unit to move, the interlocking unit drives the footrest assembly to extend or fold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.