Patent ID: 8308214
Filing Date: 2012-11-13
Classification: B62D

Abstract:
1. A lower structure of a vehicle body rear part, comprising: a pair of side frames spaced apart from each other in a vehicle width direction; a spare tire housing formed on a rear floor in the vehicle body rear part, and arranged between the pair of side frames; a rear cross member disposed in front of the spare tire housing to connect the pair of side frames to each other; and a hook reinforcing member for a traction hook, which is disposed in the center in the vehicle width direction on a lower surface of the spare tire housing and extends in a vehicle longitudinal direction, a front end portion of the hook reinforcing member being connected to the rear cross member, and a rear end portion thereof extending to a rear end portion of the rear floor, wherein a portion of each of the side frames rearward of the rear cross member is divided at a frame division position into a frame front part and a frame rear part with respect to the vehicle longitudinal direction, and the hook reinforcing member is divided at a reinforcing member division position into a reinforcing member front part and a reinforcing member rear part with respect to the vehicle longitudinal direction; the frame front parts have a rigidity higher than that of the frame rear parts; the reinforcing member rear part has a rigidity higher than that of the reinforcing member front part; and the frame division positions and the reinforcing member division position coincide with each other with respect to the vehicle longitudinal direction.