| 摘要 |
PURPOSE:To permit the climbing on all kinds of slopes by installing a wheel revolved by a hydraulic motor onto a tractor body and driving said wheel when the climbing power is insufficient. CONSTITUTION:A wheel 8 is installed onto a tractor body 1, and a hydraulic motor 6 is connected to the wheel 8, and operated by the oil discharged from a hydraulic pump 4 installed onto the tractor body 1. Therefore, when the climbing power is insufficient, the wheel 8 is revolved by the drive of the hydraulic motor 6, and the climbing power can be assisted, and therefore, the climbing on all kinds of slopes is permitted.
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