Vehicle body structure
A bulkhead and a bulkhead are provided in a rocker so that a portion of the rocker, which portion is subject to bending due to buckling, is positioned between the bulkheads. If the portion of the rocker is bent due to buckling, for example, at the time of vehicle collision, a bulkhead is caught between the bulkheads, and absorbs a load applied to the bulkheads. In this way, when the rocker is deformed, the load is absorbed by the bulkhead.
1. A vehicle body structure, comprising:
a structural member defining an inner space;
at least two reinforcement members disposed in the inner space of the structural member along a longitudinal direction of the structural member; and
a load-absorbing member that is disposed between the two reinforcement members and absorbs a load applied to the reinforcement members, wherein:
each of the reinforcement members has a side surface facing the load-absorbing member and is arranged so that, when an external force is applied to the structural member and the structural member is deformed, the side surface of each of the reinforcement members is brought into contact with the load-absorbing member and applies a pressure to the load-absorbing member;
the load-absorbing member has a side surface facing the side surface of one of the reinforcement members, a side surface facing the side surface of the other of the reinforcement members, and a connecting surface that connects the two side surfaces of the load-absorbing member; and
the structural member, the reinforcement members, and the load-absorbing member are arranged so that, when the external force is applied to the structural member and the structural member is deformed, one of the side surfaces of the load-absorbing member is brought into contact with the side surface of the one of the reinforcement members, the other of the side surfaces of the load-absorbing member is brought into contact with the side surface of the other of the reinforcement members, and the connecting surface of the load-absorbing member is deformed to absorb a shock;
wherein the load-absorbing member has a strength lower than the reinforcement members;
wherein the structural member includes two parts that face each other;
wherein the reinforcement members are provided on one of the two parts; and
wherein the load-absorbing member is provided on the other of the two parts.
2. The vehicle body structure according to claim 1 , wherein the load-absorbing member is an elastic body and has a cut-away portion at the connecting surface.
3. The vehicle body structure according to claim 1 , wherein:
one of the side surfaces of the load-absorbing member and the other of the side surfaces of the load-absorbing member are inclined with respect to each other so as to form a tapered shape; and
the side surface of the one of the reinforcement members and the side surface of the other of the reinforcement members are inclined with respect to each other so as to form a tapered shape.
4. The vehicle body structure according to claim 1 , wherein the load-absorbing member is a bulkhead.
5. The vehicle body structure according to claim 1 , wherein:
one of the side surfaces of the load-absorbing member and the other of the side surfaces of the load-absorbing member are inclined with respect to each other so as to form a tapered shape; and
the side surface of the one of the reinforcement members and the side surface of the other of the reinforcement members are inclined with respect to each other so as to form a tapered shape.
6. The vehicle body structure according to claim 1 , wherein the structural member is a rocker.
7. The vehicle body structure according to claim 1 , wherein:
a sidewall of the load-absorbing member has a trapezoidal shape; and
said side surfaces of the two reinforcement members are disposed substantially parallel to the respective surfaces of the load-absorbing member.