Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1980-10-30
1983-02-22
Rolla, Joseph J.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
414631, B66B 920
Patent
active
043745504
ABSTRACT:
A lift truck upright having a fixed upright section, one or more telescopic upright sections, and a load carrier mounted on an inner upright section. An asymmetric lift cylinder assembly is located adjacent one side or the upright in a position which provides improved overall operator visibility through the upright. The lift cylinder is adapted to be operatively connected at its upper end to a telescopic upright section for operating lifting chain structure which traverses laterally across the upright and which is reeved on spaced and rotationally aligned sprockets supported either from a telescopic upright section or from the lift cylinder assembly, the one chain end structure being connected in the two stage upright hereof a substantial distance outwardly of one side of the cylinder assembly to a member, such as to the adjacent outer upright rail, and the other chain end structure being connected centrally of the lifting or fork carriage. The cylinder assembly is operatively connected to the telescopic upright section at or near a location which is one-half the projected distance between the chain end connections, or in a broader sense, approximately midway between the vertical central plane of the load carrier and the chain end connection outwardly of the cylinder assembly.
In any multi-section upright using this invention, the asymmetric cylinder assembly is located such that it projects at least partially into the area of interference by the adjacent side of the upright when in a retracted or collapsed position with the visibility of the operator from his normal line of sight through that side of the upright.
REFERENCES:
patent: 2456320 (1948-12-01), Rapke
patent: 3360078 (1967-12-01), Hopfeld
patent: 3394778 (1968-07-01), Brinton
patent: 3830342 (1974-08-01), Allen
Robinson; "Double Asymmetric Upright".
Clark Equipment Company
Noland Kenneth
Rolla Joseph J.
Wiessler J. C.
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