Collection method and collection system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKazuo Suyama, Katsuji Harajiri
Life of this patent
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Abstract
A collection method using a collection system including a lifting device that is configured to wind up an overhead line supported by a support post, a suspension device that is connected to the overhead line and is movable in the air as the lifting device winds the overhead line, and a grip device suspended from the suspension device includes a step of gripping a tree by the grip device at two points, a step of cutting the gripped tree, a step of tilting the cut tree such that a longitudinal direction of the tree is along a horizontal direction, and a step of conveying the tree gripped by the grip device as the lifting device winds the overhead line.
Claims3
A collection method using a collection system including a winch that is configured to wind up an overhead line supported by a support post, a suspension device that is connected to the overhead line and is movable in the air as the winch winds the overhead line, and a grip device suspended from the suspension device, the collection method comprising:
- a step of gripping a tree in an upright state by the grip device at two or more points, the grip device includes a first grip portion that grips a root side of the tree and a second grip portion that grips an upper portion of the tree with respect to the first grip portion, the first grip portion and the second grip portion are connected by a first wire, and the first grip portion is suspended by a second wire,
- a step of cutting the gripped tree at the root side of the tree while gripping the tree at the root side and the upper portion of the tree;
- a step of tilting the cut tree by winding up the second wire and moving the first grip portion upward such that a longitudinal direction of the tree is along a horizontal direction while gripping the tree at the root side and the upper portion of the tree;
- and
- a step of conveying the tree gripped by the grip device as the winch winds the overhead line.
A collection system, comprising:
- a plurality of support posts;
- an overhead line supported by the support posts;
- a winch that is configured to wind up the overhead line;
- a suspension device that is connected to the overhead line and is movable in the air as the winch winds the overhead line;
- and
- a grip device suspended from the suspension device, wherein:
- the grip device includes
- a first grip portion that grips a root side of a tree in an upright state,
- a second grip portion that grips an upper portion of the tree with respect to the first grip portion in the upright state,
- a first wire that connects the first grip portion and the second grip portion,
- a second wire that suspends the first grip portion, and
- a motor that winds up the second wire;
- the motor is driven to wind the second wire so as to tilt the tree that is cut such that the cut tree is alone a horizontal direction;
- and
- the winch winds the overhead line to convey the tilted tree.
Dependencies are inferred from the claim text.