Material or article handling – Elevator or hoist and loading or unloading means therefor – Elevator wherein means comprises guide mounted for relative...
Patent
1993-06-07
1995-04-25
Werner, Frank E.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Elevator wherein means comprises guide mounted for relative...
180282, 414673, 414914, 414399, 414392, 414347, 414635, 212157, 187222, 187224, B60P 164
Patent
active
054093465
ABSTRACT:
The chassis of a forklift truck includes a front assembly and a rear assembly which, in certain embodiments, are movable toward and away from each other between an extended stable normal working condition and a contracted compact condition for storage or transport of the forklift truck. The front assembly includes driven front wheels, standard upright mast and double-acting lift jack for the fork carriage movable along the mast. The rear assembly includes the operator compartment, rear axle assembly for the rear wheels and mechanism mounting the rear axle assembly for vertical movement relative to the operator compartment between a raised normal working position and a downward-projected position. The rear assembly also includes a landing wheel or wheels mounted in front of the rear axle assembly at a location above the rear wheels when the rear axle assembly is raised. The rear assembly also includes a stabilizing system which corrects tipping of the rear assembly when the rear axle assembly is in the downward-projected position. Projection and retraction of the rear axle assembly in cooperation with movement of the front and rear assemblies toward and away from each other and movement of the fork carriage along the mast permits self-loading and unloading of the forklift truck from one horizontal surface to another, with or without a load, such as onto and off of the bed of a transport vehicle.
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