Abstract: A structure against a side impact has a side wall of a vehicle body, the side wall including a pillar within which a reinforcement is provided, a seatback frame, and a load receiving member disposed on the seatback frame to contact with the side wall of the vehicle body and to receive an impact load when the side wall of the vehicle body is moved toward a vehicle cabin by a side impact. A high-strength area reinforced by the reinforcement to have high strength is formed in the side wall of the vehicle body. An upper area of the pillar reinforced by the reinforcement includes a lower area having a strength lower than the strength of the high-strength area is formed beneath the high-strength area. A lower area that is not reinforced by the reinforcement is formed beneath the upper area.

Abstract: A load transfer structure includes a seatback frame, and a load receiving member disposed on the seatback frame to contact with a side wall of a vehicle body when the side wall is moved toward a vehicle cabin by a side impact. The load receiving member includes a horizontal portion extending laterally, an inclined portion extended obliquely outward and upward from an outer end of the horizontal portion, and a curved portion provided between the horizontal portion and the inclined portion and having inner and outer concave edges. A bisector of an angle between straight edges continued from both ends of the outer concave edge and a bisector of an angle between straight edges continued from both ends of the inner concave edge intersect with each other in the curved portion. Accordingly, an absorbed energy amount by the load receiving member increases.

Abstract: A load transfer structure includes a seatback frame, and a load receiving member disposed on the seatback frame to contact with a side wall of a vehicle body when the side wall is moved toward a vehicle cabin by a side impact. The load receiving member includes a horizontal portion extending laterally, an inclined portion extended obliquely outward and upward from an outer end of the horizontal portion, and a curved portion provided between the horizontal portion and the inclined portion and having inner and outer concave edges. A bisector of an angle between straight edges continued from both ends of the outer concave edge and a bisector of an angle between straight edges continued from both ends of the inner concave edge intersect with each other in the curved portion. Accordingly, an absorbed energy amount by the load receiving member increases.

Abstract: A structure against a side impact has a side wall of a vehicle body, the side wall including a pillar within which a reinforcement is provided, a seatback frame, and a load receiving member disposed on the seatback frame to contact with the side wall of the vehicle body and to receive an impact load when the side wall of the vehicle body is moved toward a vehicle cabin by a side impact. A high-strength area reinforced by the reinforcement to have high strength is formed in the side wall of the vehicle body. An upper area reinforced by the reinforcement to have strength lower than the strength of the high-strength area is formed beneath the high-strength area. A lower area that is not reinforced by the reinforcement is formed beneath the upper area.