Armrest mechanism of foldable sofa
US12144432B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2024 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Aug 8, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C19/124
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An armrest mechanism of a foldable sofa includes an outer support plate, an inner bracing plate, and a driving rod. The outer support plate and the inner bracing plate are respectively arranged at two sides of the driving rod. Multiple groups of crank rod assemblies are arranged on the driving rod, and the driving rod is individually hinged with the outer support plate and the inner bracing plate through the crank rod assemblies. Each crank rod assembly includes a first rod and a second rod. An end of the first rod is hinged with the inner bracing plate and the other end is hinged with the driving rod. An end of the second rod is hinged with the outer support plate and the other end is hinged with the driving rod. A gear structure is engaged between the first rod and the second rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.