초록 ▼

An aerial chain saw suspended from a helicopter by a non-rigid suspension system. A continuous chain extends around a chain saw bar, driven by a sprocket. Hydraulic lines to and from the helicopter provide hydraulic power to a hydraulic motor mounted at the upper end of the bar. In addition to the m

An aerial chain saw suspended from a helicopter by a non-rigid suspension system. A continuous chain extends around a chain saw bar, driven by a sprocket. Hydraulic lines to and from the helicopter provide hydraulic power to a hydraulic motor mounted at the upper end of the bar. In addition to the motor, a landing foot is mounted to the upper end of the bar. When the saw is landed, the helicopter slowly lowers the saw to the ground, a lower chain guard protects the lower of the saw, and the landing foot, positioned at right angles to the bar, protects the upper end of the saw. The non-rigid suspension system is made of non-twist material for keeping the cutting direction aligned with the nose of the aircraft. The suspension system is also non-conductive to electrically insulate the aircraft from the chain saw. The non-rigid nature of the suspension system aids landing and dampens vibrational forces transmitted from the chain saw.

대표청구항 ▼

[ We claim:] [1.] An aerial chain saw system comprising:a chain saw comprising:a singular cutting means comprising a continuous chain having teeth mounted thereto;a bar for guiding said chain about a periphery of said bar;a drive assembly for driving said chain about said periphery of said bar, said

[ We claim:] [1.] An aerial chain saw system comprising:a chain saw comprising:a singular cutting means comprising a continuous chain having teeth mounted thereto;a bar for guiding said chain about a periphery of said bar;a drive assembly for driving said chain about said periphery of said bar, said drive assembly comprising:a sprocket mounted at a first end of said bar for driving said chain about said periphery of said bar;at least one hydraulic motor for driving said first sprocket; anda flywheel assembly for storing inertial energy and stabilizing said chain; anda non-rigid suspension means for attaching said chain saw to an aircraft and dampening vibrations caused by said chain saw, wherein said chain saw is attached to said non-rigid suspension means by two lift plates attached to said first end of said bar of said saw and to a first end of said non-rigid suspension means, wherein said lift plates have at least one pin extending through at least one aperture in said end of said non-rigid suspension means.