Wide base type suspension assembly with parallelogram torque beams and four air springs
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United States of America Patent
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-
Dec 22, 1987
Grant Date -
N/A
app pub date -
Nov 18, 1986
filing date -
Nov 18, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicle suspension system having a longitudinally extending beam assembly with a medial section connected to the vehicle axle, a forward end that provides a spring seat for a front air spring, and a rearward end that provides a spring seat for a rear air spring. The air springs are outriggered by mounting brackets that project outboard of the beam assembly. Upper outboard projecting mounting brackets are connected to the vehicle chassis. The beam assembly has a special stepped configuration to avoid interference with existing vehicle components while providing the desired distribution of loads between the air springs. The suspension system incorporates two air springs and two shock absorbers on each side of the vehicle. A parallelogram is provided by upper and lower torque rods. The lower torque rod is of large cross section to provide increased strength and to allow for mounting on large heavy-duty bushings so that the torque rod can transfer push and pull loads. The parallelogram arrangement between the upper and lower torque rods provides axle stability.
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