Patent ID: 8033601
Filing Date: 2011-10-11
Classification: B60N

Abstract:
1. A vehicle seat, comprising: a head rest moving mechanism to move a support portion of a head rest relative to a seat back when a vehicle is subjected to a back collision, the head rest moving mechanism including: a base provided at an upper portion of the seat back; a link connected to the support portion and the base for linking the support portion and the base; an engaging pin that is fixedly provided with the support portion and is configured to move integrally with the support portion and to control an attitude of the support portion in accordance with a relative movement of the support portion; and a guide path provided along the base and having an elongated slot for slidably guiding the engaging pin in accordance with the relative movement of the support portion, wherein the head rest moving mechanism moves the support portion from an initial position to a collision corresponding position in a front upper direction relative to the seat back, and wherein when the support portion moves in the front upper direction to the collision corresponding position, the support portion returns to an initial position attitude while maintaining a collision point between the support portion and a head of a passenger.