Collision of the traveling body, collision shock buffering device shock buffering part

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crash of a traveling body such as an automobile and a shock buffer unit of a crash shock absorber, The piston rods 2 and 2 'and the pistons 9 and 9' are operated. When the traveling body collides or collides with the piston rod 9, 'Is a collision shock of the traveling body which alleviates the impact transmitted through the shock absorbing cylinder portions 4 and 4'.