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    • 13. 发明公开
    • RAIL VEHICLE EQUIPPED WITH IMPACT-ABSORBING DEVICE
    • 装有冲击吸收装置的铁路车辆
    • EP3216669A1
    • 2017-09-13
    • EP14904975.1
    • 2014-10-28
    • Hitachi, Ltd.
    • NAKAMURA, HideyukiMOCHIDA, ToshihikoYAMAGUCHI, TakashiKIMURA, Sota
    • B61D15/06B61G11/16F16F7/12
    • B61G11/16F16F7/12
    • An absorber (10) is a hollow structure that extends in a direction in which impact load acts and includes an inner plate (14) of polygonal cross section, an outer plate (12) of polygonal cross section, and a plurality of ribs (16) connecting the inner and outer plates along the direction in which the impact load acts. An outer plate (22) of a front member (20) of polygonal cross section is mounted in front of the absorber (10) to be substantially coaxial with the absorber (10). When viewed in the direction in which the impact load acts, the outer plate (22) of the front member (20) and the inner plate (14) of the absorber (10) are disposed to cross each other. When impact force is applied to the front member (20), prior to crushing of the absorber (12), the front member (20) experiences, while maintaining its central axis along the direction in which the impact load acts, crushing that penetrates into an inner part of the inner plate (14) from where the outer plate (22) and the inner plate (14) cross each other for causing the impact force to act on the inner plate in a radial direction from its central axis. In this way, the load is prevented from acting on a whole surface of the absorber at a time in a collision, whereby a crushing peak load can be lowered, and the impact shock can be relieved.
    • 吸收体(10)是沿着冲击载荷作用的方向延伸的中空结构,包括多边形截面的内板(14),多边形截面的外板(12)和多个肋(16) )沿着冲击载荷作用的方向连接内板和外板。 多边形横截面的前部构件(20)的外板(22)安装在吸收体(10)的前方,以与吸收体(10)基本同轴。 当沿冲击载荷作用的方向观察时,前构件20的外板22和吸收体10的内板14相互交叉设置。 当冲击力施加到前部构件20时,在破碎吸收体12之前,前部构件20在沿着冲击载荷的作用方向保持其中心轴线的情况下经历压入, 内板(14)的内部与外板(22)和内板(14)相互交叉,以使冲击力从其中心轴线沿径向作用在内板上。 以这种方式防止了载荷在碰撞时作用在吸收器的整个表面上,由此可以降低破碎峰值载荷,并且可以减轻冲击震动。