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:
Aug. 24, 2021
Filed:
Feb. 24, 2020
Fusco Industrial Corporation, Taipei, TW;
Chen-Yu Tsai, Taipei, TW;
Fusco Industrial Corporation, Taipei, TW;
Abstract
A fixing structure for a foot ring of a chair includes a hub with a central hole formed with internal threads on an inner surface thereof; and a bush being a cylindrical body having a tapered outer surface with external threads. The bush has a shaft hole penetrating along a longitudinal axis of the bush, a groove penetrating through a wall of the bush, and at least one pad provided on an inner surface of the shaft hole. The bush is assembled with the hub by screwing the external threads of the bush with the internal threads of the hub. A supporting post penetrates through the shaft hole. When the bush rotates toward a first direction, the shaft hole is reduced to clamp and fix the supporting post, and when the bush rotates toward a second direction, the shaft hole is enlarged to release the supporting post.