US 2010/0133372 A1Published application

Portable winch assembly actuated by auxiliary handheld torquing device

AssigneeMoJack Distributors, LLC

InventorVincent Ying

Life of this patent

Estimating the term…

Loading patent…

Abstract

Provided are a portable winch assembly for use in lifting equipment and a planetary reduction gearbox that may be incorporated into existing winch assemblies. The planetary reduction gearbox of the winch assembly includes a primary sun gear, a first plurality of planet gears, a secondary sun gear, a second plurality of planet gears, and a ring gear. The primary sun gear is fitted with a drive head, which is configured for engagement by a handheld torquing device, such as an electric drill. The rotation of the primary sun gear results in the subsequent rotation of a cooperatively engaged gear-driven lifting assembly, to which a rope, cable, or strap may be attached for hoisting equipment. Optionally, a handle assembly may also be included, the handle being selectively disengageable from the lifting assembly, so that the handle may be remain stationary with respect to the rotation of the primary sun gear.

Claims17

Dependent claims

A portable winch assembly, the winch assembly being actuable by an auxiliary handheld torquing device, the winch assembly comprising:

a planetary reduction gearbox, the gearbox comprising a primary sun gear, a secondary sun gear, a first plurality of planet gears, a second plurality of planet gears, and a ring gear;
the primary sun gear including a drive head and a drive shaft, the drive head being configured for engagement with the auxiliary handheld torquing device;
the first plurality of planet gears being carried by a first planet carrier, the first planet carrier including an aperture therethrough such that the drive shaft is positioned through the aperture and the first plurality of planet gears are operatively engaged with the primary sun gear;
the secondary sun gear being positioned within the aperture in the first planet carrier, the secondary sun gear having an opening therethrough, the drive shaft being positioned through the opening;
the second plurality of planet gears being carried by a second planet carrier, the second planet carrier including an aperture therethrough such that the drive shaft is positioned through the aperture and the second plurality of planet gears are operatively engaged with the secondary sun gear;
and
the ring gear encircling the primary sun gear, the first plurality of planet gears, the secondary sun gear, and the second plurality of planet gears, the ring gear being operatively engaged with the first plurality of planet gears and the second plurality of planet gears.

4 more elements

Dependencies are inferred from the claim text.