Impact absorbing member
View Patent ↗An object of the present invention is to provide an impact absorbing member capable of reinforcing a desired reinforcement object portion. The impact absorbing member includes a long impact absorbing body which absorbs energy at the time of a collision by being deformed itself and a mounting member which is disposed at a reinforcement object portion of the impact absorbing body so that it is deformed along deformation of the reinforcement object portion at the time of the collision and mounted to a mounting object member. When the reinforcement object portion is deformed at the time of the collision, the mounting member is deformed along deformation of the reinforcement object portion. Due to that deformation, the mounting member can reinforce the reinforcement object portion.
1. An impact absorbing member comprising:
a long impact absorbing body for absorbing energy at the time of a collision by being deformed itself; and
a first mounting member and a second mounting member which are disposed on reinforcement object portions of the impact absorbing body so as to be deformed along deformation of the reinforcement object portions at the time of a collision, and which are mounted to a mounting object member, wherein,
the reinforcement object portions are both end portions in the length direction of the impact absorbing body,
the first mounting member is disposed on one end portion in the length direction of the impact absorbing body, and the second mounting member is disposed on the other end portion in the length direction of the impact absorbing body,
the impact absorbing body includes an outer cylinder and a pair of inner ribs whose faces are developed substantially perpendicular to the direction of a load input at the time of a collision while connecting the inner faces of the outer cylinder,
the outer cylinder includes an input wall portion to which a load is inputted, an output wall portion which outputs the load to the mounting object member while being disposed substantially in parallel to the input wall portion, and a pair of connecting wall portions for connecting the input wall portion with the output wall portion,
the pair of the inner ribs are disposed substantially in parallel to the input wall portion and the output wall portion while the pair of the inner ribs connect the inner faces of the pair of the connecting wall portions,
each of the first and second mounting members includes a covering portion which covers from outside the corresponding one of the end portions in the length direction of the impact absorbing body, and a plurality of pawl portions each of which is curved inward and extended from the covering portion,
the covering portion covers from outside the outer cylinder such that the inner face of the covering portion runs along the outer periphery of the outer cylinder,
at each of both end portions in the length direction of the outer cylinder, at least both end portions in the circumferential direction of the input wall portion and both end portions in the circumferential direction of a section surrounded by the pair of the inner ribs of the connecting wall portion are nipped between the covering portion and the pawl portions, and
the pair of inner ribs of the impact absorbing body is deformed by tension at the time of a collision, and each of the first and second mounting members is deformed following up deformation of the impact absorbing body.
2. The impact absorbing member according to claim 1 , wherein each of the first and second mounting members has a wrap-around portion which covers at least part of a portion exposed on the mounting object member side of the reinforcement object portion.
3. The impact absorbing member according to claim 1 , wherein each of the first and second mounting members independently overlaps the corresponding end portions in the length direction of the impact absorbing body as viewed from the direction of a load input at the time of a collision.
4. The impact absorbing member according to claim 1 , wherein the impact absorbing body is made of resin.