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US 10,532,688 B2Granted
Vehicle elevation system
AssigneeFederal Signal Corporation
InventorsJerry Wayne Richards, Jay Ghelani, John Benton Stafford
Life of this patent
Estimating the term…
Abstract
A dumping vehicle includes a vehicle elevation system for elevating a body of a vehicle. The system can use one or more components of a vehicle as a main support against which a vehicle body is elevated. In certain examples, a suspension device of the vehicle can be used as the main support. The system further includes an elevation device arranged between the suspension device and a vehicle frame and configured to elevate the vehicle body by lifting the vehicle frame against the suspension device.
Claims22
A vehicle comprising:
- a suspension system;
- an elevation device arranged between the suspension system and a part of the vehicle;
- and
- an elevation control device configured to operate the elevation device between a retracted position and an extended position, wherein the elevation device extends between the suspension system and the part of the vehicle and elevates the vehicle against the suspension system, and wherein when the elevation device is in the extended position at least a portion of the suspension system operatively disengages from the part of the vehicle.
1 more element
A dumping vehicle comprising:
- a vehicle frame;
- a debris body;
- a front suspension system;
- a rear suspension system including a first rear axle assembly;
- an elevation device arranged between the rear suspension system and the vehicle frame;
- and
- an elevation control device configured to operate the elevation device between a retracted position and an extended position, wherein the elevation device extends between the rear suspension system and the vehicle frame and elevates the vehicle frame against the rear suspension system, and wherein when the elevation device is in the extended position at least a portion of the suspension system operatively disengages from the vehicle frame.
4 more elements
A vehicle comprising:
- a suspension system;
- an elevation device arranged between the suspension system and a part of the vehicle;
- and
- an elevation control device configured to operate the elevation device between a retracted position and an extended position, wherein the elevation device extends between the suspension system and the part of the vehicle and elevates the vehicle against the suspension system,
- wherein the elevation device includes a hydraulic cylinder assembly having a hydraulic chamber, and the elevation control device includes a hydraulic circuit, the hydraulic circuit being in fluid communication with the hydraulic chamber, and wherein the hydraulic cylinder assembly further includes an air chamber opposite to the hydraulic chamber, and the elevation control device includes an air supply circuit being in fluid communication with the air chamber.
2 more elements
A dumping vehicle comprising:
- a vehicle frame;
- a debris body;
- a front suspension system;
- a rear suspension system including:
- a first rear axle assembly;
- a second rear axle assembly;
- and
- a spring assembly including a leaf spring, a first spring bracket, and a second spring bracket, wherein the first spring bracket is configured to engage a first end of the leaf spring and mounted to the vehicle frame adjacent the first rear axle assembly, and wherein the second spring bracket is configured to engage a second end of the leaf spring and mounted to the vehicle frame adjacent the second rear axle assembly;
- an elevation device arranged between the rear suspension system and the vehicle frame, wherein the elevation device is engaged between the second rear axle assembly and the vehicle frame;
- and
- an elevation control device configured to operate the elevation device between a retracted position and an extended position, wherein the elevation device extends between the rear suspension system and the vehicle frame and elevates the vehicle frame against the rear suspension system.
8 more elements
Dependencies are inferred from the claim text.