| 摘要 |
PROBLEM TO BE SOLVED: To prevent the deformation of a spare tire house toward a front side of a vehicle and the movement of a spare tire toward the front side of the vehicle and promote the jumping-up of a rear portion of the spare tire when a load is applied from a rear side of the vehicle. SOLUTION: A lower structure of a vehicle body rear part includes a rear cross member 5 disposed in a front side of the vehicle of the spare tire house 3 to connect side frames 4, and a hook reinforcing member 6 disposed in the center in the vehicle width direction on the lower surface of the tire house 3 and extending in the front-to-rear direction of the vehicle. A front end portion of the hook reinforcing member 6 is connected to the rear cross member 5, and a rear end portion thereof extends to a rear end portion of a rear floor 2. The side frame 4 extending from the rear cross member 5 is divided into a frame front part 11 and a frame rear part 12 in the front-to-rear direction, and the hook reinforcing member 6 is divided into a reinforcing member front part 21 and a reinforcing member rear part 22 in the front-to-rear direction. The frame front part 11 has a rigidity higher than that of the frame rear part 12, and the reinforcing member rear part 22 has a rigidity higher than that of the reinforcing member front part 21. The two division positions 10, 20 coincide with each other in the front-to-rear direction. COPYRIGHT: (C)2011,JPO&INPIT
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