초록 ▼

A portable power cutting apparatus has a control unit with a support for mounting the control unit on one arm of the user permitting the control unit and cutting tool to be supported by that arm. The support is pivotal and a flexible cable operatively connects a motor to the cutting tool for driving

A portable power cutting apparatus has a control unit with a support for mounting the control unit on one arm of the user permitting the control unit and cutting tool to be supported by that arm. The support is pivotal and a flexible cable operatively connects a motor to the cutting tool for driving the tool. This permits the control unit to be pivoted in a lateral direction or twisted to allow the operator to move the cutting head in a variety of positions without loss of power by moving only the supporting arm and hand of the user. A handle is provided on the control unit for gripping by the hand of the user\s support arm. A cutting tool suitable for girdling a tree and which can also be used to cut through tree branches and small tree trunks is also disclosed. This cutting tool is frustoconical in shape having a length of chainsaw chain wrapped in a spinal groove around the outside face of this tool body. In another embodiment the cutting tool is a chainsaw which can be operated with the supporting arm of the user.

대표청구항 ▼

A portable cutting apparatus, comprising: a cutting tool; a motor; driving means for operatively connecting the motor to the tool for driving the tool; a control unit connected to said tool for gripping with a user\s hand, the control unit supporting the driving means; mounting means for mounting th

A portable cutting apparatus, comprising: a cutting tool; a motor; driving means for operatively connecting the motor to the tool for driving the tool; a control unit connected to said tool for gripping with a user\s hand, the control unit supporting the driving means; mounting means for mounting the control unit to a user\s forearm; hinge means for connecting said mounting means to the control unit, said hinge means being laterally spaced apart from the driving means and being sufficiently stiff within a first plane to support weight of the control unit and cutting tool when extending from the mounting means, and being relatively flexible within a second plane disposed generally normally to the first plane to permit relative lateral movement between the mounting means and an adjacent portion of the driving means when an elbow of said forearm is moved outwardly or inwardly in relation to a user\s body to permit said mounting means to move relative to of said driving means as the elbow is moved.