| 摘要 |
PURPOSE:To reduce the radius of gyration in the captioned vehicle in which the connection/disconnection of driving force and the feeding of braking force to the crawler belt in the turning direction out of right and left crawler belts are carried out by providing a pressing means for pressing the center part of the crawler belt downward only when braking force is fed to one crawler belt. CONSTITUTION:A vehicle with crawler having crawler belts 46 on the right and left has hydraulic cylinders 3a, 3b, for operating brakes which are provided in a driving force transmitting system for separately driving the right and left crawler belts 46. A pressure oil is fed and discharged into and from each of the hydraulic cylinders 3a, 3b via a selector valve 1 which is controlled in its switchover by the operation of a steering lever 2. And, the vehicle is controlled in its turning by feeding a braking force to the driving rolling wheel 41 of one crawler belt 46. In this case, a rolling wheel 42a presses the center part of the ground contacting part of each crawler belt 46 downward by the action of each hydraulic cylinder 44 (44a, 44b). Each hydraulic cylinder 44 is placed in the hydraulic circuits of the hydraulic cylinders 3a, 3b and is interlocked with the action of a brake.
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