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US 10,953,939 B2Granted
Load span tag axle system
AssigneeOshkosh Corporation
InventorsJason Zuleger, Ryan Wolf, Jeremy Andringa, Mitchell Murphy, Brian Van Caster
Life of this patent
Estimating the term…
Abstract
Systems and apparatuses include a chassis mount configured to couple to a vehicle chassis, an axle assembly including wheels, a four-bar linkage coupling the axle assembly to the chassis mount, and a hydraulic cylinder coupled between the chassis mount and the axle assembly. The hydraulic cylinder actuates the axle assembly between a raised position and a lowered position and acts as a spring damper suspension component.
Claims21
A tag axle system comprising:
- a chassis mount configured to couple to a vehicle chassis;
- an axle assembly including wheels;
- a four-bar linkage coupling the axle assembly to the chassis mount;
- and
- a hydraulic cylinder coupled between the chassis mount and the axle assembly, the hydraulic cylinder actuating the axle assembly between a raised position and a lowered position,
- wherein the hydraulic cylinder acts as a spring damper suspension component.
3 more elements
A tag axle system comprising:
- a chassis mount configured to couple to a vehicle chassis;
- an axle assembly including an axle beam that includes a plurality of plates welded together, each plate defining no more than two bends, and a plurality of axle brackets fastened to the axle beam;
- and
- a four-bar linkage coupling the axle assembly to the chassis mount and including a right upper link, a right lower link, a left upper link, and a left lower link;
- a hydraulic cylinder coupled between the chassis mount and the axle beam, the hydraulic cylinder actuating the axle beam between a raised position and a lowered position,
- wherein each of the right upper link, the right lower link, the left upper link, and the left lower link define a link bend between a midpoint of the respective link and the axle beam, and
- wherein the hydraulic cylinder acts as a spring damper suspension component.
4 more elements
A tag axle system comprising:
- a chassis mount configured to couple to a vehicle chassis;
- an axle beam including a plurality of plates welded together, each plate defining no more than two bends;
- a plurality of axle brackets fastened to the axle beam;
- a four-bar linkage coupling the axle beam to the chassis mount and including a right upper link, a right lower link, a left upper link, and a left lower link, wherein each of the right upper link, the right lower link, the left upper link, and the left lower link define a link bend between a midpoint of the respective link and the axle beam;
- a hydraulic cylinder coupled between the chassis mount and the axle beam, the hydraulic cylinder actuating the axle beam between a raised position and a lowered position,
- wherein the hydraulic cylinder acts as a spring damper suspension component.
3 more elements
A tag axle system comprising:
- a chassis mount configured to couple to a vehicle chassis;
- an axle assembly including
- an axle beam that includes a plurality of plates welded together, each plate defining no more than two bends,
- a kingpin arranged at a kingpin caster angle that is maintained in all loading conditions when the axle assembly is in a lowered position, and
- a plurality of axle brackets fastened to the axle beam;
- and
- a four-bar linkage coupling the axle assembly to the chassis mount and including a right upper link, a right lower link, a left upper link, and a left lower link.
4 more elements
Dependencies are inferred from the claim text.