IMPACT ABSORBING MEMBER FOR VEHICLE

To improve energy absorption efficiency per mass.SOLUTION: An impact absorbing member for vehicles (hereinafter, impact absorbing member 20) is provided with an absorbing member body 40 that is formed with a plurality of fiber-reinforced resin layers laminated mutually and jointed. The absorbing member body 40 is for receiving a collision load in a front-rear direction L. A cross section orthogonal to the front-rear direction L of the absorbing member body 40 is an open cross section and has: a pair of side portions 51 that are disposed apart from each other in a vehicle width direction W and extend in an up-down direction Z; a connection portion 52 connecting the ends in the up-down direction Z of the pair of side portions 51; a pair of extension portions 53 extending away from each other in the vehicle width direction W from the other ends in the up-down direction Z of the pair of side portions 51; and a pair of turned-back portions 54 that are turned back at the tips of the pair of extension portions 53 and extend to the side approaching the connection portions 52 in the up-down direction Z. The tips of the pair of turned-back portions 54 are located closer to the extension portion 53 side than an intermediate position in the up-down direction Z of the side portions 51.SELECTED DRAWING: Figure 1 【課題】質量当たりのエネルギ吸収効率を高めること。【解決手段】車両用衝撃吸収部材（以下、衝撃吸収部材２０）は、複数の繊維強化樹脂層が互いに積層されるとともに接合されて形成された吸収部材本体４０を備える。吸収部材本体４０は、前後方向Ｌにおいて衝突荷重を受けるものである。吸収部材本体４０における前後方向Ｌに直交する断面は、開断面であり、車幅方向Ｗに互いに間隔をあけて配置され、上下方向Ｚに延在する一対の側部５１と、一対の側部５１の上下方向Ｚの一端同士を連結する連結部５２と、一対の側部５１の上下方向Ｚの他端から車幅方向Ｗにおいて互いに離れるように延在する一対の延在部５３と、一対の延在部５３の先端において折り返され、上下方向Ｚにおいて連結部５２に近づく側に延在する一対の折り返し部５４と、を有し、一対の折り返し部５４の先端は、上下方向Ｚにおける側部５１の中間位置よりも延在部５３側に位置している。【選択図】図１