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:
Jan. 28, 2025
Filed:
Nov. 16, 2021
Dewertokin Technology Group Co., Ltd., Zhejiang, CN;
Liming Yang, Zhejiang, CN;
Qiqi Ye, Zhejiang, CN;
Bin Shen, Zhejiang, CN;
Kangming Tao, Zhejiang, CN;
Hanhao Tu, Zhejiang, CN;
DEWERTOKIN TECHNOLOGY GROUP CO., LTD., Zhejiang, CN;
Abstract
In a sofa seat stretching device, one end of a second support facing away from a first support, and a second leg rest plate connector are hinged at a fourth hinge point, so that the stretching assembly's stretching speed is reduced in a process of switching from a sitting position state to a lying position state when a driving assembly acts in the same way, and the weightlessness feeling can be effectively avoided. Moreover, the driving assembly drives the stretching assembly so that the process of switching the stretching assembly from the lying position state to the sitting position state is smoother.