Chair frame with high strength and high stability
US10398230B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2017 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Mar 5, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
This invention provides a chair frame with high strength and high stability, including a base front supporting tube, a base rear supporting tube, a base right supporting tube and a base left supporting tube. A pedal support is connected to a front driving tube through a connecting rod mechanism. Two ends of a main motor telescopic rod mechanism are respectively fixed to the front driving tube and the base rear supporting tube. Two ends of a backrest motor telescopic rod mechanism are fixedly connected to a backrest front driving tube and a backrest rear driving tube. An upper frame is fixedly connected to a connecting piece thereof. The base right supporting tube and the base left supporting tube are fixedly connected to a connecting piece thereof. Two sides of the front driving tube are further connected to a clamping piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.