Patent ID: 7647770

Claim:
A hydraulically driven working vehicle comprising: a frame including a pair of left and right side plates extended in the fore-and-aft direction of the vehicle; a first transaxle supported by one of front and rear portions of the frame, the first transaxle including: a hydraulic pump, a first hydraulic motor fluidly connected to the hydraulic pump, a first axle driven by the first hydraulic motor, and a first transaxle housing incorporating the first hydraulic motor and the first axle, wherein the first transaxle housing is provided with a pair of outwardly opened first ports fluidly connected to the hydraulic pump and the first hydraulic motor, respectively; a second transaxle supported by the other rear or front portion of the frame, the second transaxle including: a second hydraulic motor fluidly connected to the hydraulic pump, a second axle driven by the second hydraulic motor, and a second transaxle housing supported by the other rear or front portion of the frame, and incorporating the second hydraulic motor and the second axle, wherein the second transaxle housing is provided with a pair of second ports fluidly connected to the second hydraulic motor; a prime mover supported by the frame between the first and second transaxles; a traveling power transmission system supported by the frame between the prime mover and the first transaxle so as to drivingly connect the hydraulic pump to the prime mover; a working device disposed under the frame between the first and second transaxles; a working power transmission system supported by the frame between the prime mover and the working device so as to drivingly connect the working device to the prime mover; and a pair of axle-driving hydraulic pressure fluid pipes interposed between the pair of first ports and the pair of second ports so as to fluidly connect the second hydraulic motor to the hydraulic pump, wherein the pipes include respective fore-and-aft extended portions which are extended in the fore-and-aft direction of the vehicle between an inside surface of at least one of the left and right side plates of the frame and the traveling and working power transmission systems.