Patent ID: 11945699
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Other special machines (Mechanical engineering)
Classification: CPC B  A | IPC A  B

Claim 0:
1. 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.