A collision energy absorption component (1) for automobiles according to the resent invention absorbs the collision energy by having a shaft that is crushed when a collision load is input from the front or rear of the automobile body. This collision energy absorption component (1) for automobiles comprises: a cylindrical member (3) which has a top board part (5a) and a pair of vertical wall parts (5b); a closed cross-sectional space forming wall member (9) which is arranged within the cylindrical member (3) so as to straddle the top board part (5a), while having both ends bonded to the inner surfaces of the pair of vertical wall parts (5b), thereby forming a closed cross-sectional space between itself and the circumferential wall part of the cylindrical member (3); and a resin (11) which is filled into the closed cross-sectional space and contains a rubber-modified epoxy resin and a curing agent. The resin (11) has a tensile elongation at break of 80% or more, a bonding strength of 12 MPa or more between the cylindrical member (3) and the closed cross-sectional space forming wall member (9), and a nominal compressive stress of 6 MPa or more at a nominal compressive strain of 10%.
本发明所涉及的汽车用碰撞能量吸收部件(1)在碰撞载荷从车身的前方或者后方输入时产生轴向压溃而吸收碰撞能量,其特征在于,具有:筒状部件(3),具有顶板部(5a)和一对纵壁部(5b);封闭截面空间形成壁部件(9),在筒状部件(3)的内侧配设为跨越顶板部(5a)并且两端部与一对纵壁部(5b)的内表面接合,而在自身与筒状部件(3)的周壁部之间形成封闭截面空间;以及树脂(11),填充于该封闭截面空间,并含有橡胶改性环氧树脂和固化剂而成,树脂(11)的拉伸断裂伸长率为80%以上,与筒状部件(3)以及封闭截面空间形成壁部件(9)的粘合强度为12MPa以上,压缩公称应变10%时的压缩公称应力为6MPa以上。
COLLISION ENERGY ABSORPTION COMPONENT FOR AUTOMOBILES
汽车用碰撞能量吸收部件
2021-09-21
Patent
Electronic Resource
Chinese
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