OUTRIGGER DEVICE OF WORK VEHICLE

PROBLEM TO BE SOLVED: To dispense with a ground contact base plate which is brought into contact with the ground by human labor each time and store a ground contact plate in a vehicle body without protruding on a side of the vehicle body. SOLUTION: This outrigger device is constituted by a jack cylinder provided with a piston rod 21b which is attached to a vehicle body 11a and can be expanded and shrunk downward and a ground contact device which is attached to a lower end of the piston rod 21b and is moved vertically in accordance with the expansion and shrinkage operations of the piston rod. The ground contact device has a float 25 connected with the lower end of the piston rod 21b, a jack base 26 slidable and movable to the outside on a side of the vehicle body for the float 25, a spring 27 energizing the jack base 26 to the outside, and a storage dock 28. A roller 23 which comes into contact with a guide face of the storage dock 28 in the vicinity of a storage position and moves the jack base 26 inward when the piston rod 21b is shrunk and the ground contact device is stored is provided on the vehicle body 11a side.