Steerable dual rear axle system for large vehicles

Details Steerable dual rear axle system for large vehicles Steerable dual rear axle system for large vehicles

1992-03-09

1994-05-03

Focarino, Margaret A.

Land vehicles

Wheeled

Running gear

280 815, 180 2401, B60G 500

Patent

active

053081056

ABSTRACT:
A steerable dual rear axle system for large vehicles in which the vehicle has a frame, and the axle system includes a forward axle housing, a draft arm having one arm affixed to the forward axle housing and the other pivotally affixed to the vehicle frame, a rearward axle housing spaced from the forward axle housing, an axle extending through both axle housings having wheels and tires thereon, an upper linkage having one end pivotally attached to the upper portion of the forward axle housing and the other end pivotally attached to the upper portion of the rearward axle housing, a lower linkage having one end pivotally attached to the lower portion of the forward axle housing and the other end pivotally attached to the lower portion of the rearward axle housing so that the axle housings are supported in spaced apart relationship with the axle housings being independently free to move in vertical planes, compressible strut members extending between the axle housings and the frame for spring supporting the frame, and a hydraulically actuatable cylinder-piston member extending between the forward and rearward axle housings for steerably pivoting the rearward relative to the forward axle housing.

REFERENCES:
patent: 1565527 (1925-12-01), Templin
patent: 1761135 (1930-06-01), Le Moon
patent: 2613954 (1952-10-01), Avila
patent: 3147024 (1964-09-01), Brockman
patent: 4717170 (1988-01-01), Mounier-Poulat et al.
patent: 5088570 (1992-02-01), Loeber
patent: 5163700 (1992-11-01), Loeber

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