SEMI-CRAWLER TYPE TRAVELING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a semi-crawler type traveling device suppressing pitching of a tractor body and preventing lifting of front wheels. SOLUTION: Right and left crawlers are provided with a rotary driving body, front and rear rotary driven bodies rotatably supported by shafts to a truck frame below the rotary driving body, and an endless rotationally running body provided around the rotary driving body and the front and rear rotary driven bodies and they are composed in a triangular shape as viewed from the side. The truck frame is supported by a tractor body swingably in a vertical direction via a swinging spindle. A front ground contact length is provided longer than a rear ground contact length in reference to a vertical line passing an axis of the swinging spindle.