Sofa armrest structure and sofa
US11707138B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2023 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Mar 13, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C17/04
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sofa armrest structure and a sofa are provided. A connection pipe is provided with a connection through hole. A first connection hole is formed in a first fixing frame and corresponds to the connection through hole. A second connection hole is formed in a second fixing frame and corresponds to the connection through hole, and an internal thread structure is formed in the second connection hole. One end of a connection rod is provided with a nut, and the other end of the connection rod is provided with an external thread structure. The end with the external thread structure of the connection rod passes through the connection through hole and the first connection hole and is connected to the internal thread structure in the second connection hole through the external thread structure. An inner chamber protection layer is detachably arranged on a fixing frame body through hook-and-loop fasteners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.