Woodworking – Special-work machine – Combined
Patent
1977-09-06
1979-03-20
Simpson, Othell M.
Woodworking
Special-work machine
Combined
91171, 144 2Z, 414708, A01G 2308
Patent
active
041449185
ABSTRACT:
A mobile tree harvester includes a shear mounted at the base of a harvesting frame for shearing a tree trunk, a grip arm pivotably mounted to the frame above the shear for gripping the tree trunk, delimbers mounted above the grip arms for removing branches from the trunk, and an endless tract mounted on each grip arm for propelling the tree trunk along the forward frame. Lift arms pivotably couple the forward frame to a main body of a wheeled vehicle. A sway mechanism is coupled to both lift arms to provide for relative movement of one lift arm with respect to the other such that the harvesting frame can sway from the vertical position in a left or right direction. A tilt mechanism is coupled to the harvesting frame, lift arm, and main body to maintain the frame in its vertical ground position as the lift arms lift the frame off the ground. The tilt mechanism also tilts the frame about an axis transverse to the vehicle axis to a horizontal position such that the sheared end of the tree trunk faces rearwardly. Behind the frame is a storage space within the main body adapted to receive the tree trunks as the endless tracks propel the tree trunk therein and to store a plurality of logs therein. Movable panels at the bottom of the storage area release the logs when desired.
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Bray W. D.
Simpson Othell M.
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