Tree harvester
AssigneeMurdoch Logging Industries Pty. Ltd.
InventorAndrew Gemmell-Murdoch
Life of this patent
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Abstract
A tree harvester of the type having a grapple assembly, shear assembly and de-limbing assembly where the grapple assembly and the de-limbing assembly are mounted on respective telescopically slidable carriers. Cables connect the de-limbing assembling (or grapple assembly) to the grapple carrier (or de-limbing carrier) to move the de-limbing assembly (or grapple assembly) along its carrier at substantially the same velocity as the relative velocity between the two carriers. The grapple assembly and de-limbing assembly may delimb two tree trunks in a single operation, both tree trunks being severed by the shear assembly into logs of substantially uniform length.
Claims9
A tree harvester comprising:
- (a) a fixed main boom mounted on a prime mover,
- (b) a secondary boom mounted telescopically within said main boom for longitudinal movement relative thereto, and means for longitudinally moving said secondary boom relative to said main boom,
- (c) grapple and shear assemblies carried by said secondary boom for gripping and severing, respectively, a tree trunk,
- (d) a delimbing gantry mounted for longitudinal sliding movement on said main boom, and means for moving said gantry relative to said main boom and said secondary boom,
- (e) a delimbing trolley mounted on said delimbing gantry for longitudinal movement relative thereto, said trolley supporting a delimbing head, and
- (f) means for simultaneously longitudinally moving said deliming trolley relative to said gantry as said gantry is moved longitudinally relative to said main boom.
Dependencies are inferred from the claim text.