| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a vehicular seat capable of increasing moving amount to a rear side in a seat fore-and-aft direction at a back portion of a passenger, when a vehicle receives impact from the rear side.SOLUTION: When a vehicle is collided by another vehicle and the like from a rear side, inertial force acts on a passenger D toward a rear side in a seat fore-and-aft direction. The passenger D presses a bridge portion 52A of a rotation rod 52 backward. Therefore, the rotation rod 52 and a side support member 28 rotate, and a tip end portion of the side support member 28 expands outward in a seat width direction. A space in the seat width direction to the passenger D of the seat back 14, and the sinking amount of the passenger D into a main cushion portion 24B is increased. Thus, when the vehicle receives impact from a rear side, the moving amount of the back portion of the passenger D to the rear side in the seat fore-and-aft direction can be increased.</p> |
