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:
Oct. 20, 2020
Filed:
Dec. 20, 2016
Kokuyo Co., Ltd., Osaka-shi, Osaka, JP;
Takao Sugano, Osaka, JP;
Katsuaki Hayashi, Osaka, JP;
KOKUYO CO., LTD., Osaka-shi, JP;
Abstract
A chair includes: a leg; a seat; and a front-back support mechanism. The front-back support mechanismis provided at a seat receiving partdirectly supported by the leg, and the front-back support mechanism includes: a wavy plateprovided to horizontally extend from vertical wallsof the seat receiving partand having mound-shaped surfaceseach convexly curved upward; and followersprovided at front-back support bodiesas supported parts and configured to move relative to the mound-shaped surfaceswhile contacting the mound-shaped surfaces. The wavy plateis associated with the followerssuch that a movement end inclines downward when the seatmoves from a neutral position in accordance with a relative movement between the mound-shaped surfacesand the followers