| 摘要 |
PROBLEM TO BE SOLVED: To provide a sub frame structure capable of efficiently absorbing the impact by promoting the axial collapse while effectively suppressing the bending deformation of a vehicle body frame, and promoting the downward fall of a stored spare tire, and increasing the holding strength of a seat mounting part. SOLUTION: Both ends of a sub frame 3 and a support member 8 are jointly tightened to vehicle body frames 1, 2 via cylindrical portions of floating bushes 6, 7, and an intermediate portion of the support member 8 is offset L backwardly. Collapse of inner cylinders of the floating bushes 6, 7 is suppressed to increase the rigidity ratio. The hardness of the bushes is relatively decreased, and the conflicting performance of the improvement of the steering stability and the improvement of the ride quality/drumming performance can be ensured. Bending deformation of the vehicle body frame is effectively suppressed by the offset L, and the efficiency and consistent impact absorption is achieved by promoting the axial collapse. COPYRIGHT: (C)2007,JPO&INPIT
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