To easily mount/remove right and left crawler traveling devices on/from right and left rear axles in a semi-crawler type working vehicle.
A crawler lifting supporting device is constituted of a lifting supporting body having a recessed shape in front view having opened front, rear and upper parts, right and left casters mounted in a lower part of the lifting supporting body, a fixed supporting shaft on a right and left one side extended from both right and left sides of an upper part of the lifting supporting body toward a center part and a moving supporting shaft movably adjustable in a right and left direction on the right and left other side, and fixed supporting means provided at inside end parts of the fixed supporting shaft and the moving supporting shaft. A front side guiding wheel in a lower part of a crawler traveling device and both right and left side parts of a rear side guiding wheel are held from both right and left sides and are non-rotatably fixed and supported by the fixed supporting means provided at the inside end parts of the fixed supporting shaft and the moving supporting shaft in a pair of front and rear crawler lifting supporting devices.
TAKEMOTO YUJI
TAKAHASHI MANABU
HATANO HIROMITSU
TAKAGI SHIN
