Patent ID: 7556297

Claim:
An attachment structure of an energy absorbing structure comprising: a bumper reinforcement that includes an attachment surface, insertion holes having inner peripheral portions and being formed in the attachment surface; an energy absorbing structure disposed in contact with the attachment surface and including vertical direction ribs and transverse direction ribs that are connected with each other; locking claws that are disposed on the energy absorbing structure and engage with the bumper reinforcement to fix the energy absorbing structure to the bumper reinforcement; and load receiving projections that are formed integrally with the vertical direction ribs except at a position where the vertical direction ribs and the transverse direction ribs are connected with each other, the load receiving projections including a hollow portion and a solid portion, and being inserted into the insertion holes, the solid portion being disposed in positions along the attachment surface when the load receiving projections are inserted into the insertion holes, such that when a load in a direction along the attachment surface acts on the energy absorbing structure, the load receiving projections interfere with the inner peripheral portions of the insertion holes and receive the load.