A seat back frame (1) for an automobile is provided with: a first side frame (2) and a second side frame (3) which are disposed so as to be separated from each other in the vehicle width direction; an upper frame (4) which connects the upper end (2a) of the first side frame (2) and the upper end (3a) of the second side frame (3); and an upper bracket (7) which is attached to the upper end (2a) of the first side frame (2) and which guides a seatbelt. The first side frame (2) is an extruded material extending in the vertical direction of the vehicle, and the lower end part (2b) is fixed. The first side frame (2) has a closed cross-section portion (10) in a cross-section perpendicular to the vertical direction of the vehicle. The upper end portion (2a) of the first side frame (2) is crushed toward the rear of the vehicle, and the thickness of the upper end portion (2a) in the front-rear direction of the vehicle is smaller than that of the lower end portion (2b).
汽车用座椅靠背框架(1)具备:在车辆宽度方向上分离地配置的第一侧框架(2)以及第二侧框架(3)、连结第一侧框架(2)的上端部(2a)以及第二侧框架(3)的上端部(3a)的上框架(4)、安装于第一侧框架(2)的上端部(2a)且引导安全带的上托架(7)。第一侧框架(2)是沿车辆上下方向延伸的挤出件,下端部(2b)被固定。第一侧框架(2)在垂直于车辆上下方向的截面中具有闭截面部(10)。第一侧框架(2)的上端部(2a)被向车辆后方压溃,与下端部(2b)相比,上端部(2a)的车辆前后方向的厚度变小。
Seat back frame for automobile and manufacturing method thereof
汽车用座椅靠背框架及其制造方法
2023-03-31
Patent
Electronic Resource
Chinese