Material or article handling – Self-loading or unloading vehicles – Loading or unloading by other carrier or mover means – and...
Patent
1997-02-10
1999-11-30
Werner, Frank E.
Material or article handling
Self-loading or unloading vehicles
Loading or unloading by other carrier or mover means, and...
414462, 414543, 414718, 2804151, 224519, 212253, 212238, B60P 154
Patent
active
059931370
ABSTRACT:
A hoist for raising and lowering objects may be attached to a vehicle. The hoist includes a support column and a boom attached thereto; the boom can be raised and lowered by a hydraulic double action cylinder or otherwise. Both the support column and cylinder attach to a bracket, the bracket in turn being rotatably connected to a base unit so that the boom can be rotated as well as raised and lowered. The support column and boom can be adjusted with respect to one another and to the bracket, to balance loads and to adjust the reach of the hoist. Critical sections of the hoist, such as the portion of the boom that attaches to the support column, are reinforced with plates welded to the exterior of a rectangular tube. The connection between the support column and the bracket includes a nut to tension the column to the bracket. The base unit includes outriggers to support and stabilize the hoist, preferably three outriggers in a triangular configuration. Adjustments to the hoists can be made by inserting and removing penetrating pins through adjustment holes in the hoist members, which are quick and easy to make as well as strong and reliable.
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patent: 5205700 (1993-04-01), Linetal
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patent: 5445487 (1995-08-01), Koscinski, Jr.
patent: 5520498 (1996-05-01), Di Bartolomeo
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