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US 12,421,798 B2Granted
Drive and carriage for material hoist
AssigneeTie Down, Inc.
InventorsMohammed Aamir, Michael James Maczko, Charles J. MacKarvich
Life of this patent
Estimating the term…
Abstract
A drive for a material hoist system can include a housing configured to be slidably coupled to a track of the system; a motor positioned inside the housing; a gearbox positioned inside the housing and coupled to the motor; and a spool positioned inside the housing between the motor and the gearbox, the spool configured to: selectably wind and unwind a flexible connecting element coupled to the track; and drive movement of the drive along a longitudinal direction of the track.
Claims15
A drive for a material hoist system, the drive comprising:
- a housing configured to be slidably coupled to a track of the system;
- a motor positioned inside the housing;
- a gearbox positioned inside the housing and coupled to the motor;
- a spool positioned inside the housing between the motor and the gearbox, the spool configured to:
- selectably wind and unwind a flexible connecting element coupled to the track;
- and
- drive movement of the drive along a longitudinal direction of the track;
- a mounting sleeve coupled to the housing and formed as a hollow tube defining a cavity, the cavity configured to receive a frame member of a carriage of the material hoist system, a hole formed through the mounting sleeve and extending transverse to the cavity;
- and
- a fastener engaging the hole and configured to couple the drive to the carriage;
- wherein:
- the drive further comprises a first frontward moving element and a first sideward moving element;
- the first frontward moving element is configured to engage a frontward-facing portion of a first rail;
- and
- the first sideward moving element is configured to engage a sideward-facing portion of the first rail.
12 more elements
Dependencies are inferred from the claim text.