Abstract: A movable headrest provided on a seat back of a seat mounted in a vehicle and capable of changing a position from a normal position to an emergency position, the headrest including a headrest support supported by the seat back and having a guide section, a rotary support member pivotally supported by the headrest support and rotatable between a first position corresponding to the normal position and a second position corresponding to the emergency position, and a headrest body pivotally supported by the rotary support member and having a headrest body support which moves along the guide section, whereby as the rotary support member rotates relative to the headrest support, the position of the headrest body relative to the headrest support changes while the headrest body support moves along the guide section.

Abstract: A movable headrest provided on a seat back of a seat mounted in a vehicle and capable of changing a position from a normal position to an emergency position, the headrest including a headrest support supported by the seat back and having a guide section, a rotary support member pivotally supported by the headrest support and rotatable between a first position corresponding to the normal position and a second position corresponding to the emergency position, and a headrest body pivotally supported by the rotary support member and having a headrest body support which moves along the guide section, whereby as the rotary support member rotates relative to the headrest support, the position of the headrest body relative to the headrest support changes while the headrest body support moves along the guide section.

Abstract: An air bag door system including an air bag door portion releasably connected with a car inside member along the contact lines thereof, the air bag door portion being covered with one cover member and the car inside member being covered with another cover member. The cover members of the air bag door portion and the car inside member respectively include flange portions which are bent toward the respective back sides of the two cover members. Also, the two cover members are so connected with each other as to form the contact line through engaging portions respectively formed in the flange portions. Further, on the back surfaces side of the two cover members including the flange portions, there is provided a common resin layer which is formed integrally with the respective back surfaces of the two cover members.