SEMI-CRAWLER TYPE WORKING VEHICLE

PROBLEM TO BE SOLVED: To provide a semi-crawler type working vehicle capable of easily changing a shape of a crawler part according to the operational state. SOLUTION: A semi-crawler type tractor comprises an output shaft 71, a driving sprocket 52, a supporting case 56, a transmission gear 53, and a supporting case fixing mechanism 57. The output shaft 71 is arranged so as to be projected in the right-to-left direction of a tractor body in a vicinity of a crawler part 15, and outputs the driving force on an engine side. The rotation of the output shaft 71 is transmitted to the driving sprocket 52 via the transmission gear 53 to drive a crawler belt 51 of the crawler part 15. The supporting case 56 supports the driving sprocket 52, and is rotatable around the axis of the output shaft 71. The supporting case fixing mechanism 57 is used for fixing the position of the driving sprocket 52 to be supported by the supporting case 56. The crawler part 15 is constituted in a triangular shape with a driving sprocket 52 being an apex in side view. COPYRIGHT: (C)2010,JPO&INPIT