Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1981-05-06
1984-02-14
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
180295, B66B 920
Patent
active
044310846
ABSTRACT:
A straddle type material handling industrial truck providing an approximately constant force on the traction and braking wheel through pivotal mounting of the drive unit augmented by spring loading. The spring loading is accomplished by a spring mechanism which includes an upper spring bracket having a downwardly extending stop portion and mounted on the frame, a lower spring bracket having an upwardly extending stop portion and mounted on the drive unit, and a compression spring extending between the spring brackets, the stop portions being located within the compression springs and spaced apart a predetermined amount to limit the upward pivotal movement of the drive unit.
REFERENCES:
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patent: 2520857 (1950-08-01), Schreck
patent: 2643740 (1953-06-01), Quayle
patent: 3515233 (1970-06-01), Stammen
patent: 3756350 (1973-09-01), Gandolfo et al.
Hyster Ordermaster 30CA Specifications.
Hyster Ordermaster 30C Specifications.
Raymond Model 14 Orderpicker, Yale OS-Order Selector and FS-Furniture Selector Industrial Trucks
Clark Equipment Company
Noland Kenneth
Rolla Joseph J.
Wiessler John C.
Witt Kenneth C.
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