Flip headrest device for sofa
US11000129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2019 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C17/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A flip headrest device adapted for a sofa includes a sofa frame and a flip mechanism. The sofa frame includes a sofa frame top and two sofa frame sides that are cooperatively connected. The flip mechanism includes a driver rotatably connected in the sofa frame, a flip lever rotatably connected to the driving member, a planar link mechanism cooperatively connected to both ends of the flip lever, and a headrest portion disposed at an upper end of the sofa frame top. The planar link mechanism includes a crank rod, a first link and a second link. The crank rod has one end being fixedly connected to the flip lever, a middle portion being rotatably connected to the first link, and the other end being rotatably connected to the second link. The first and second links pass through the sofa frame top and are rotatably connected to the headrest portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.