Extra flotation device for selectively providing auxiliary groun

Land vehicles – Wheeled – Running gear

Patent

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Details

180 2402, 280 4323, B60S 900

Patent

active

041462432

ABSTRACT:
The frame of a load-bearing vehicle has two beams extending one on each side of the frame and pivotally mounted to the frame. Between each beam and the frame is an air bladder, or other cushion. At the end of each beam is a linkage carrying a tag axle, wheel and tire. A power actuator rotates the linkage to bring the wheel and tire into ground engaging position at the end of the beam, and a second power actuator pivots the beams upwardly to raise the wheel-and-tire set; or pivots the beam downwardly to lower the wheel-and-tire set into ground engagement. Fluid motor actuators for the linkages and the beams respectively, are remotely operable so that the extra flotation wheels and tag axle can be brought into ground engagement when additional ground support is desired for the weight borne by the vehicle frame; or, the extra flotation wheels and tires can be raised to an elevated transport position, also by remote operation of the fluid motor actuators associated with the beam and linkage respectively.

REFERENCES:
patent: 3912293 (1975-10-01), Harbers
patent: 4063779 (1977-12-01), Martin et al.
patent: 4082305 (1978-04-01), Allison et al.

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