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. 21, 2014

Filed:

Aug. 03, 2011
Applicants:

Hiroyoshi Yamaguchi, Yokohama, JP;

Kenzou Yasuda, Yokohama, JP;

Makoto Hasegawa, Yokohama, JP;

Takeshi Ito, Yokohama, JP;

Eiji Shimizu, Yokohama, JP;

Satoshi Nishikido, Yokohama, JP;

Inventors:

Hiroyoshi Yamaguchi, Yokohama, JP;

Kenzou Yasuda, Yokohama, JP;

Makoto Hasegawa, Yokohama, JP;

Takeshi Ito, Yokohama, JP;

Eiji Shimizu, Yokohama, JP;

Satoshi Nishikido, Yokohama, JP;

Assignee:

NHK Spring Co., Ltd., Yokohama-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60N 2/427 (2006.01); B60N 2/42 (2006.01); B60R 21/055 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a headrest device including: a headrest main body that is provided at an upper end portion of a seat back of a seat in which a passenger sits; a pressure/flexure detecting section that is provided at a vehicle front side of the seat back; a headrest moving section; and a control section that estimates a current back-set, that is a distance between a head portion of a passenger and the headrest main body in a horizontal direction, on the basis of at least one of pressure and flexure detected by the pressure/flexure detecting section and a predetermined relationship between back-set and the at least one of pressure and flexure, and controls the headrest moving section to move the headrest main body such that the back-set becomes a predetermined amount.


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