Utility hauling vehicle having four wheel drive

Details Utility hauling vehicle having four wheel drive Utility hauling vehicle having four wheel drive

1986-04-21

1987-11-17

Love, John J.

Motor vehicles

Special wheel base

Five or more wheels

180 2409, 180 2412, 180251, 280405R, B62D 6110, B60K 17342

Patent

active

047067705

ABSTRACT:
A utility hauling vehicle includes at least one steerable wheel suspended from the forward end of a rigid frame of the vehicle and front and rear pairs of unsuspended drive wheels mounted to the rigid frame rearwardly of the steerable wheel. The front pair of drive wheels is differentially driven and the rear pair of drive wheels is respectively coupled for being driven in unison with the front pair of drive wheels. A differential lock is provided for locking the rear pair of drive wheels and, hence, the front pair of drive wheels for rotation in unison. The suspension for the steerable front wheel or wheels acts to lift the forward end of the frame to transfer weight to the rear pair of drive wheels. Weight transfer can also be accomplished by mounting the front pair of drive wheels at a level above the rear pair of drive wheels. The vehicle has a load bearing zone substantially within a vertical projection of the largest area occupied by the drive wheels.

REFERENCES:
patent: 834008 (1906-10-01), Grier
patent: 2195432 (1940-04-01), Short et al.
patent: 2595494 (1952-05-01), Stratman
patent: 3131492 (1964-05-01), Speicher et al.
patent: 3191708 (1965-06-01), Simonds et al.
patent: 3191963 (1965-06-01), Prichard
patent: 3224523 (1965-12-01), Ross
patent: 3343620 (1967-09-01), Karavias
patent: 3370665 (1968-02-01), Stanaback

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