| 摘要 |
A load handling vehicle for movement of a load such as a drag of logs over rough terrain. The vehicle has a grapple assembly for lifting one end of a load for dragging the load over the terrain with one end elevated. The grapple assembly is connected to the boom of the skidder vehicle by a releasable load coupling. The grapple assembly is hydraulically actuated and hydraulically connected to the tow vehicle for that purpose. A mainline is connected at one end to the grapple assembly and at the other end to the tow vehicle and engages a powered winch drum permitting playing out and allowing for reeling in of the mainline. The grapple assembly is detachable from the tow vehicle by disconnecting the load coupling. When the grapple assembly is detached from the tow vehicle, it still engages the load and can be dragged by the tow vehicle using the mainline over the rough terrain. The skidder operator operates the vehicle in such a configuration when the terrain is too rugged to permit operation of the vehicle as a grapple skidder. Once clear of the adverse terrain, the operator can reattach the grapple assembly to the boom structure from the vehicle, then lift the load to the transport position and resume operation as a grapple skidder.
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