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.

Date of Patent:
Jan. 03, 2023

Filed:

May. 27, 2021
Applicant:

Kokuyo Co., Ltd., Osaka, JP;

Inventors:

Takao Sugano, Osaka, JP;

Yojiro Kinoshita, Osaka, JP;

Assignee:

KOKUYO CO., LTD., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47C 3/22 (2006.01); A47C 3/18 (2006.01); A47C 3/026 (2006.01); A47C 7/14 (2006.01); A47C 7/00 (2006.01); A47C 7/18 (2006.01);
U.S. Cl.
CPC ...
A47C 7/144 (2018.08); A47C 3/18 (2013.01); A47C 3/22 (2013.01); A47C 7/004 (2013.01); A47C 7/18 (2013.01);
Abstract

To realize a noble, useful seat with a simple structure designed to follow a natural movement of a seated person in front-rear and left-right directions and to support appropriately a movement of the person continuously changing its posture while the person balances a load. The seat includes the elastic support layerand upper and lower base unitsandarranged to sandwich the elastic support layer. The upper base unitincludes the rolling surfacebulging toward the lower base unitthereabove via the elastic support layer, is rollable in a 360° direction from the tilt reference position IRP in receiving a load of the seated person, and has a moving distal end side tilting more downward as a distance from the position IRP increases, and is configured to move while compressing the elastic support layerby the rolling surface.


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