To absorb vertical vibration while miniaturizing a crawler through the miniaturization of a frame structure supporting both driving wheels and track rollers wheels and provide a strong driving force by reducing the loss of force during transmission from the driving wheel, to a crawler belt at the of travel of a vehicle.
In a triangular crawler 2, a frame 17 supporting a driving wheel 3 and rollers 4-7 is formed into an integrated structure, and a crawler belt 8 made of rubber is wound approximately in the form of a triangle around the rollers 3-7 so as to make contact with the outer peripheries of the rollers 3-7. The track rollers 4-7 provided in four pairs along the longitudinal direction are so formed that the front three pairs, i.e., the front track rollers 4 and the intermediate track rollers 6, 7, are fitted with rubber tires 9, while the pair of rear tack rollers located at the rear end are formed of metallic guide rollers 10.
SHIBAZAKI SHUNICHI
AWAZU SHIGEO
KIMURA YOSHIMASA
TOYOTA MOTOR CORP