The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2025
Filed:
Aug. 23, 2021
Dewertokin Technology Group Co., Ltd., Jiaxing, CN;
Long Li, Jiaxing, CN;
Liming Yang, Jiaxing, CN;
Guowei Wang, Jiaxing, CN;
Bin Shen, Jiaxing, CN;
Kangming Tao, Jiaxing, CN;
Qiqi Ye, Jiaxing, CN;
Guangjiao Zhang, Jiaxing, CN;
DEWERTOKIN TECHNOLOGY GROUP CO., LTD., Jiaxing, CN;
Abstract
Provided are a chair frame and a chair. The chair frame supports a human waist and back by using a waist support assembly and supports human legs and feet by using a footstool assembly. Meanwhile, when the waist support assembly is unfolded, driven by a second support rod, a second end of a first support rod can swing toward the footstool assembly with a junction between a first end of the first support rod and the second support rod as a rotation center to increase an included angle between a waist support bracket and a seat cushion bracket, that is, increasing an unfolded angle of a backrest and achieving the zero gravity effect. The chair can improve the chair comfort by applying the preceding chair frame.