Patent ID: 7921956

Claim:
A hydraulic driving vehicle, comprising: a first transaxle including a first transaxle casing, a variable displacement type first hydraulic motor disposed in the first transaxle casing, a first differential unit disposed in the first transaxle casing so as to be driven by the first hydraulic motor, a pair of right and left first axles supported by the first transaxle casing so as to be driven by the first differential unit, and a pair of right and left first drive wheels drivingly and steerably connected to the respective right and left first axles, wherein the right and left first drive wheels serve as steerable wheels, and wherein the first hydraulic motor is provided with a displacement control means for controlling the variable displacement of the first hydraulic motor in association with steering of the first drive wheels; a second transaxle including a second transaxle casing separated from the first transaxle casing, a fixed displacement type second hydraulic motor disposed in the second transaxle casing, a second differential unit disposed in the second transaxle casing so as to be driven by the second differential unit, a pair of right and left second axles supported by the second transaxle casing so as to be driven by the second differential unit and a pair of right and left second drive wheels drivingly and unsteerably connected to the respective second axles; and a hydraulic pump disposed outside of the first and second transaxle casings separately from the first and second transaxles so as to supply fluid to the first and second hydraulic motors.