| 摘要 |
PURPOSE:To reduce the sinkage of a travelling equipment and obtain easy recovery of the equipment from the sinkage, by providing both a running- direction-clutch, which can connect/disconnect the power transmission to the travelling equipment, and a running-direction-brake, which puts the brake on the intertia-caused turning of the travelling equipment. CONSTITUTION:A pair of traveling equipment, right and left, are driven or propelled by a motor 1. A funning-direction clutch 40 is able to connect/ disconnect the power transmission to each travelling equipment. A running- direction brake 41 brakes accompanying turning of the travelling equipment the power-transmission to which was disconnected by this running-direction clutch 40. As soon as the brake of this running-direction brake 41 is applied. owing to the linkage work, a supercharger 5 or the motor 1 is activated so as to make supercharging. With this contrivance, lowering of the output at the time of steep turn can be prevented, thereby reducing the sinkage of the travelling equipment and facilitating the recovery of the equipment from the sinkage.
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