Title:
ヘッドレスト装置
Document Type and Number:
Japanese Patent JP4018713
Kind Code:
B2
Abstract:
A head rest device is provided that improves the reliability of detecting a head on the basis of a change in capacitance without complicating a wiring structure. A head rest device (10) is provided with a head rest rear portion (11) supported to a seat back, and a head rest front portion (12) freely moving forward and backward between a fully-closed position coming close to the head rest rear portion (11) and a fully-open position separated from the head rest rear portion (11). The head rest front portion (12) is moved by an actuator (14). The head rest front portion (12) has a sensor electrode (16a) structured such that its capacitance is changed as a head of an occupant approaches, and an ECU (15) controlling the actuator (14) so as to move the head rest front portion (12) and detecting the approach of the head of the occupant on the basis of a change of the capacitance of the sensor electrode (16a) thereon.
Inventors:
Koichi Hirota
Koji Ito
Norifumi Itada
Tatsuhiro Okawa
Fumitoshi Akaike
Seiya Nishimura
Koji Ito
Norifumi Itada
Tatsuhiro Okawa
Fumitoshi Akaike
Seiya Nishimura
Application Number:
JP2005333258A
Publication Date:
December 05, 2007
Filing Date:
November 17, 2005
Export Citation:
Assignee:
Aisin Seiki Co., Ltd.
TOYOTA JIDOSHA KABUSHIKI KAISHA
Toyota Boshoku Co., Ltd.
TOYOTA JIDOSHA KABUSHIKI KAISHA
Toyota Boshoku Co., Ltd.
International Classes:
A47C7/38; B60N2/42; B60N2/48
Foreign References:
| WO2005073019A1 |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda