Back to results
US 2026/0138409 A1Published application
Height-adjustable air suspension trailer
OwnerPeter COLLORAFIinventor
Life of this patent
Estimating the term…
Abstract
A height-adjustable trailer (1000) comprises a chassis (100), drawbar assembly (300) pivotally attached to the chassis (100) and wheel-suspension assemblies (200) mounted to the chassis (100) at sides of the trailer (1000). Each of the wheel-suspension assemblies (200) comprises a chassis airbag assembly (210), a swingarm linkage (220) and a wheel assembly (230). Control system (500) pneumatically controls the chassis airbag assembly (210) and a drawbar airbag assembly (400) which coordinate to raise and lower the chassis (100) as required.
Claims12
A height-adjustable trailer comprising:
- a chassis;
- a drawbar assembly pivotally attached to the chassis;
- wheel-suspension assemblies mounted to the chassis at lateral opposing sides of the trailer, each of the wheel-suspension assemblies comprising a chassis airbag assembly, a swingarm linkage, and a wheel assembly, wherein the wheel assembly is mounted on the swingarm linkage, the swingarm linkage is pivotally attached to the chassis, and the chassis airbag assembly is pivotally attached at one end to the chassis and at the other end the chassis airbag assembly is pivotally attached to the swingarm linkage, and each of the chassis airbag assemblies comprise a chassis airbag and a hydraulic strut extending through the chassis airbag;
- a drawbar airbag assembly attached to the chassis and the drawbar assembly;
- a control system pneumatically connected to the drawbar airbag assembly and the chassis airbag assemblies and configured to extend the chassis airbag assemblies and the drawbar airbag assembly thereby to raise the chassis relative to the wheel-suspension assemblies to an operative travel height.
2 more elements
Dependencies are inferred from the claim text.