| 摘要 |
A tree harvesting machine, comprising a mobile platform of the walking type integrated with an automated tree processing unit for use on roadless terrain. The mobile platform comprises a horizontal boom assembly, including a power unit rotationally suspended at one of its extremities with a control unit rotationally suspended at the other, the boom assembly being rotationally mounted on a carriage which also mounts upper and lower body members having retractable legs with foot pads, each of the two body members being able to be moved translationally and rotationally with respect to each other by the carriage means. The paths of travel of each body member lie in a separate plane with the travel plane of one member being spaced vertically from the travel plane of the other. While one member is executing a movement with its foot pads elevated, the vehicle is stably supported by the foot pads of the other member which remain in contact with the ground. The body members alternate between traveling and supporting modes. The body members are basically T-shaped or triangular with the leg members depending from their extremities. Integrated with the boom assembly is a tree harvesting unit capable of severing a tree trunk from its stump, delimbing the trunk, topping the trunk, transferring the trunk to a storage cradle for holding a plurality of tree trunks and subsequently discharging the trunks in a group. Preferably, the laterally extending portions of the mobile platform are foldable along its longitudinal axis and removable road wheel assemblies are provided so that the machine may be readily converted into a configuration suitable for normal highway travel.
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