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. 10, 2010
Filed:
Nov. 15, 2006
Koichi Hirota, Takahama, JP;
Koji Ito, Yatomi, JP;
Motomi Iyoda, Seto, JP;
Tatsuhiro Okawa, Toyota, JP;
Fumitoshi Akaike, Nisshin, JP;
Seiya Nishimura, Okazaki, JP;
Koichi Hirota, Takahama, JP;
Koji Ito, Yatomi, JP;
Motomi Iyoda, Seto, JP;
Tatsuhiro Okawa, Toyota, JP;
Fumitoshi Akaike, Nisshin, JP;
Seiya Nishimura, Okazaki, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Toyota Boshoku Kabushiki Kaisha, Kariya-shi, JP;
Abstract
A head rest device that improves reliability of detecting a head on the basis of a change in capacitance without complicating a wiring structure. A head rest device is provided with a head rest rear portion configured to be supported to a seat back, and a head rest front portion freely moving forward and backward between a fully-closed position coming close to the head rest rear portion and a fully-open position separated from the head rest rear portion. The head rest front portion is moved by an actuator. The head rest front portion has a sensor electrode structured such that its capacitance is changed as a head of an occupant approaches, and an ECU controlling the actuator so as to move the head rest front portion and detecting the approach of the head of the occupant on the basis of a change of the capacitance of the sensor electrode thereon.