Patent ID: 7762568

Claim:
A stiffening device provided between left and right shock absorber support portions which are formed in a part of a vehicle body and on which shock absorber upper end portions of left and right suspension devices are respectively supported, comprising: a left side shaft and a right side shaft fixed to the left and right shock absorber support portions, respectively; and a rotation allowing portion connecting the left side shaft and the right side shaft in a central portion of the vehicle body in a vehicle width direction, and allowing the left side shaft and the right side shaft to rotate around one of an axis running through a length of the left side shaft and an axis running through a length of the right side shaft, wherein a fixing location in which the left side shaft and the right side shaft are fixed to the shock absorber support portions is disposed further toward a vehicle front side than a position of a rod axis of a left shock absorber and a position of a rod axis of a right shock absorber in a vicinity of the left shock absorber support portion and the right shock absorber support portion respectively.