Material or article handling – Self-loading or unloading vehicles – Loading or unloading by other carrier or mover means – and...
Patent
1979-03-30
1981-02-24
Kunin, Stephen G.
Material or article handling
Self-loading or unloading vehicles
Loading or unloading by other carrier or mover means, and...
414542, 414921, 187 9R, B60P 146
Patent
active
042524911
ABSTRACT:
A hoist for loading and unloading cargo through a side or rear doorway of a van or truck slides from a stored position completely inside the vehicle to an operating position with a lift platform outside the vehicle that can be lowered and raised by an electric winch connected to the platform by cables. The hoist has a pair of generally horizontal telescoping parallel beams guiding a sliding yoke movable by means of the winch to raise and lower the platform through cable runs secured to arms extending from posts at both sides of the platform. Pivoting side support beams cooperating with stop members upon extension to operating position, and other safety features prevent improper operation. If very heavy loads are to be lifted on to a small vehicle, it may be desirable to brace the vehicle, as by means of a jack at or near the location of the lift platform to avoid tilting the vehicle. The material lift platform of the invention makes it possible to use a small truck or van to carry cargo that would otherwise require the use of a large truck, thus resulting in great fuel economy.
REFERENCES:
patent: 3088608 (1963-05-01), Theodore
patent: 3275170 (1966-09-01), MacRae et al.
patent: 3282449 (1966-11-01), Buford
patent: 3463334 (1969-08-01), Blakely et al.
patent: 3552587 (1971-01-01), Warren
patent: 3957164 (1976-05-01), Brown
patent: 4026387 (1977-05-01), Abreu
patent: 4083429 (1978-04-01), Abbott
Jelco Service Co., Inc.
Kunin Stephen G.
Siemens Terrance L.
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