To provide a novel improved suspension, concerning a conventional vehicle spring suspension for vocational or heavy cargo truck applications, for the applications.
An elastomeric spring suspension is described for supporting a longitudinally extending vehicle frame rail above first and second axles forming a tandem axle configuration. A frame hanger assembly has two full spring modules, each of which includes two shear springs, a progressive spring rate load cushion having a pyramidal shape with a flattened top surface and a spring mount for mounting the springs. A spring rate for the suspension increases almost linearly as a function of sprung load, resembling a pneumatic suspension. Accordingly, the suspension exhibits excellent ride quality, without sacrificing roll stability.
| JP2022173876 | SUSPENSION DEVICE |
| JP6401506 | Vehicle rear suspension structure |
MICHAEL P ROBINSON
CHRISTOPHER W FORREST
BRANNIGAN MICHAEL
DUDDING ASHLEY T
STUART JOHN W
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Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa