Patent ID: 7600769

Claim:
A work vehicle comprising: a pair of left and right wheels; a vehicle body frame supported at least partially by the pair of left and right wheels and including: a left side member and a right side member each extending in a longitudinal direction of a vehicle body, and a cross member for connecting the left side member to the right side member; and a suspension for performing force transmission between the pair of left and right wheels and the vehicle body frame, the suspension being a five-linkage type rigid axle suspension including: a pair of left and right upper arms and a pair of left and right lower arms for positioning the pair of left and right wheels in the longitudinal direction of the vehicle body, each of the upper arms and lower arms being link-connected to the vehicle body frame at one end thereof; a lateral rod for positioning the pair of left and right wheels in the lateral direction of the vehicle body, the lateral rod being link-connected to the vehicle body frame at one end thereof; a pair of left and right coil springs for absorbing shocks from the road; a pair of left and right dampers for controlling the movements of the pair of left and right coil springs; and an auxiliary frame suspended on the vehicle body frame via the suspension and supported by the left and right pair of wheels, wherein an engine and a transmission device are mounted on the auxiliary frame.