Supplemental suspension system and method for supplementing the

Details Supplemental suspension system and method for supplementing the Supplemental suspension system and method for supplementing the

1989-05-31

1990-10-30

Mitchell, David M.

Land vehicles

Wheeled

Running gear

267 31, 267241, B60G 1146

Patent

active

049663879

ABSTRACT:
A supplemental suspension and method of supplementing the suspension in a vehicle having an axle, wheels rotatably disposed on the axle, a frame and an existing leaf spring suspension system for mounting the axle onto the frame. The supplementary suspension system includes first and second suspension arm members having front and rear ends, a cross member for connecting the two arm members, hanger means for pivotally suspending the rear ends of the arm members from the frame of the vehicle, mounting means for mounting the front ends of the arm members on the axle, and air suspension means for operably connecting a portion of the suspension arm members disposed between the front and rear ends of the members to the vehicle frame. The air suspension means further includes air bags, wherein the degree of suspension of the suspension means can be adjusted by altering the amount of air in the air bags. The arm members preferably have a generally "U" shape when viewed from a side of the vehicle. One leg of the "U" shape comprises the rear end of the arm member for suspension from the hanger means, and the other leg of the "U" shape comprises the front end of the frame member for mounting on the axle. The air suspension means is disposed toward the bottom of the "U" shape.

REFERENCES:
patent: 1679268 (1928-07-01), Rigney
patent: 3315979 (1967-04-01), Chalmers
patent: 3664452 (1972-05-01), Schaeff
patent: 3850445 (1974-11-01), Borns et al.
patent: 4181324 (1980-01-01), Hixon
patent: 4406479 (1983-09-01), Chalmers
patent: 4687222 (1987-08-01), Chalmers

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