Multi-purpose vehicle

Details Multi-purpose vehicle Multi-purpose vehicle

1974-09-16

1976-06-29

Spar, Robert J.

214778, 214DIG12, E02F 300

Patent

active

039660648

ABSTRACT:
A multi-purpose vehicle which may be used for a variety of purposes, such for example, as a fork lift truck, a tow truck with a hoist, a tractor or truck for towing a four wheel vehicle, any of the foregoing in combination with each other or in combination with a load carrying bed or container, or a tractor for supporting and towing a semi-trailer, in combination with some of the foregoing.
My invention may be readily installed on a conventional roadway tractor and comprises a sub-frame including a pair of beams which have a horizontal component adapted to rest on top of the usual longitudinally extending beams of the main frame of the tractor in a normal horizontal position, and a vertical component adapted to be pivotally connected to a support some distance above the main frame. When the sub-frame is swung upwardly about the pivot, its rear end moves in a direction away from the rear of the tractor frame, whereby lifting and hoisting mechanism carried at the rear of the sub-frame clears the rear of the tractor frame.
The sub-frame, at its rear end, carries lift forks which are adjustable in a direction transversely of the sub-frame to accommodate loads of various sizes and widths. The sub-frame has side plates which cooperate with surfaces of the beams of the tractor frame to insure alignment of the sub-frame with the tractor frame. The side plates and the beams of the tractor frame have locking means to hold the sub-frame in its normal horizontal position and to relieve the sub-frame pivot of stresses applied through the fifth wheel. Additional locking means are carried by cross-members of the sub-frame and tractor beams for relief of transverse and longitudinal stresses.

REFERENCES:
patent: 2606674 (1952-08-01), Edwards
patent: 3027033 (1962-03-01), Schuster
patent: 3063576 (1962-11-01), Hofmeister
patent: 3207338 (1965-09-01), Felburn
patent: 3261485 (1966-07-01), Anderson
patent: 3567056 (1971-03-01), Mason

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