Tree harvester
First Claim
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1. 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.
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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.
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Citations
9 Claims
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1. A tree harvester comprising:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification