| 摘要 |
<P>PROBLEM TO BE SOLVED: To move a head rest close to a more suitable position toward a head part of a sitting person when rear-end collision of a vehicle is predicted or detected. <P>SOLUTION: The vehicular seat 1 is operated so as to move the head rest 4 close toward the head part of the sitting person when the rear-end collision of the vehicle is predicted or detected. A seat back 2 is formed so as to be vertically divided to an upper part back rest 2A attached with the head rest 4 to an upper part and a lower part back rest 2B arranged at a lower part side of the upper part back rest 2A. By predicting or detecting the rear-end collision of the vehicle, the upper part back rest 2A is forward falling-operated relative to the lower part back rest 2B by driving of a middle folding drive device 20 provided between itself the lower part back rest 2B. Further, a height position relative to the upper part back rest 2A of the head rest 4 is movement-operated in a height direction approached to the head part of the sitting person by driving of a head rest lifting drive device 10. <P>COPYRIGHT: (C)2010,JPO&INPIT |
