Land vehicles – Wheeled – Running gear
Patent
1977-06-16
1979-01-02
Goodman, Philip
Land vehicles
Wheeled
Running gear
280716, 267 35, B60G 1120
Patent
active
041324331
ABSTRACT:
The present invention discloses a multiple axle articulated suspension structure and system for vehicles wherein road and tire excitations of each axle are isolated from their opposing axle, as well as from the sprung mass. This is accomplished via deflections of pressure-resistant spring means and load-equalizing supports. In preferred embodiments of this invention, both trailer and track versions of my novel vehicle suspension system are disclosed as having separately trunnioned rocker beam assemblies supported by cross axles, and wherein air and elastomeric spring means are combined in a number of combinations thereof. Air, elastomeric and hydraulic spring arrangements are contemplated, where the air spring is supplied with air at varying pressures which are a function of the load on the suspension, and wherein a height gauge located between the axle and the frame controls this pressure. An elastomer serves both to partially dampen the air spring, as well as to provide load deflection resistance to an undersized air spring. Other embodiments are disclosed.
This invention relates generally to suspension structures for use with multiple axle vehicles, and more specifically this invention relates to a composite, elastomerically damped suspension structure for tandem axles, which exhibits a progressively increasing spring rate under and when subjected to increasing loads.
REFERENCES:
patent: 3653683 (1972-04-01), Hendrickson
patent: 3761109 (1973-09-01), Campbell
Goodman Philip
Sutton Paul J.
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