Patent ID: 9669787
Date: 2017-06-06
CPC Classifications: B60R,F16F

Claim:
1. A shock-absorbing mechanism disposed between a load-receiving member of a vehicle for directly receiving a collision load and a frame member of the vehicle in order to reduce the collision load applied to the frame member, which mechanism includes a cylindrical member that is configured to axially receive the collision load applied thereto via the load-receiving member so as to be axially compressed, and a wood member that is received in the cylindrical member so as to be axially compressed with the cylindrical member when the collision load is applied thereto, the wood member being capable of expanding from its compressed condition by a certain amount in a restoring direction when the collision load is released, wherein the wood member is received in the cylindrical member while an axis direction of annual rings of the wood member corresponds to an axial direction of the cylindrical member, wherein at least one of the load-receiving member and the frame member has a pressing portion for axially pressing both of the cylindrical member and the wood member when the collision load is applied thereto, the pressing portion having a pressing surface which is placed in contact with axial end surfaces of the cylindrical member and the wood member before compression due to application of the collision load, wherein a recessed portion is formed in a portion of the pressing surface, wherein the wood member is pressed by the pressing surface and partially compressed when the collision load is initially applied thereto, so that the wood member partially enters the recessed portion, and wherein after the wood member enters the recessed portion, the wood member is pressed by the pressing surface so as to be entirely compressed.