| 摘要 |
Provided is a frame structure for a seat back, the frame structure being provided in a seat back having a seatbelt retractor and a seatbelt guide at the top of a seat and configured to have an integral structure of an oblique frame that obliquely extends upward to a seatbelt guide installation section from a first support point located on one end side in the seat width direction of the lower part of the seat back, a vertical frame that extends upward from a second support point located on the other end side in the seat width direction of the lower part of the seat back with the upper end thereof connected to the oblique frame, and a transverse frame that extends between the lower end of the oblique frame and the lower end of the vertical frame. The stiffness of the frame structure with respect to a load acting on the seat forward or obliquely forward can be effectively improved, and the weight of the frame structure can be easily reduced. |
