Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Reexamination Certificate
2006-03-21
2006-03-21
Marcelo, Emmanuel (Department: 3654)
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
Reexamination Certificate
active
07014172
ABSTRACT:
The present invention is to provide an electric hoist using a suspended electric winch that maintains a horizontal posture in any cargo handling operation. A hoist in one aspect includes a winch including a drum axially connected to a drive shaft of a motor, a suspension hook attached to the winch above the center of gravity of the winch that is in a horizontal posture thereof in and empty load state thereof, a first roller arranged on the opposite side of the winch from the suspension hook and turning the direction of a wire paid out from the drum toward the center of gravity, and a second roller for turning the direction of the wire to be aligned with a vertical line downward extended from the center of gravity of the winch. The winch is suspended in the simplest suspension method when the winch is used as a hoist. The suspension method is implemented in many plants and warehouses without any particular facility. The winch in the suspended posture thereof is balanced in a fore-after direction and a lateral direction, and continuously maintains a horizontal aligned posture during a load empty period and a load raising and lowering period.
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Bada product catalog (Oct. 2002).
HHH Manufacturing Co.
Marcelo Emmanuel
Thompson Hine LLP
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