Compact Hoist System
AssigneeElectronic Theatre Controls, Inc.
InventorsDonald Aloysius Hoffend, Jr., Donald Aloysius Hoffend, III
Life of this patent
Estimating the term…
Abstract
A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like in a performance environment. The hoist system may be adapted with safety mechanisms including an overload sensor and/or a slack line detector. The system may be provided in the form of a point hoist. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. Additional features include various cable management systems and trim adjustment mechanisms for use with the hoist system.
Claims15
A cable management system for use with a hoist system for guiding a position of a cable as the hoist system moves between an extended position and a retracted position of the hoist system, comprising:
- a guide bar adapted to interface with an elongate member of the hoist system;
- a guide connected to the guide bar and adapted for rotation with respect to the guide bar, the guide being adapted for engagement with the cable;
- wherein the guide is adapted to guide a position of the cable within a limited range of motion to form a substantially cylindrical shape as the hoist system translates from the extended position to the refracted position.
A trim mechanism for adjusting an extended length of an elongate member in a hoist system, comprising:
- a drum connected to a drum shaft, the drum being adapted to be encircled by a portion of the elongate member;
- a support mechanism for supporting the drum;
- a cog connected to the drum shaft;
- and
- a latch for biasing against the cog for temporarily preventing a rotation of the drum shaft and the drum.
A modular drive system for a hoist, comprising:
- a motor having a motor flange and a motor shaft;
- an enclosure having an enclosure flange and a drive shaft;
- the enclosure flange being releasably coupled to the motor flange and the motor shaft being releasably coupled to the drive shaft for operation of the hoist.
Dependencies are inferred from the claim text.