Pivoting axle system
AssigneeJLG Industries, Inc.
InventorDave Berry
Life of this patent
Estimating the term…
Abstract
A pivoting axle system for an aerial lift vehicle includes a plurality of axles pivotally secured to the vehicle chassis at respective pivot points between a stowed position and a working position. Each axle is coupleable with a wheel assembly at distal ends thereof. Actuators are connected between the chassis and each of the plurality of axles, respectively, where the actuators are connected to the chassis at positions spaced from the pivot points, respectively. Additionally, each of the plurality of axles is independently controllable.
Claims14
A pivoting axle system for an aerial lift vehicle including a chassis, the pivoting axle system comprising:
- a plurality of axles pivotally secured to the chassis at respective pivot points between a stowed position and a working position, each axle coupleable with a wheel assembly at distal ends thereof, wherein each wheel assembly includes a wheel with a wheel tread;
- and
- actuators connected between the chassis and each of the plurality of axles, respectively, wherein the actuators are connected to the chassis at positions spaced from the pivot points, respectively,
- wherein each of the plurality of axles is independently controllable, and wherein each wheel assembly comprises a spindle and king pin mounted to a respective one of the plurality of axles, a steering pivot axis being offset from both a rotating axis of the wheel and a plane through a center of the wheel tread.
A pivoting axle system for an aerial lift vehicle including a chassis, the pivoting axle system comprising:
- a plurality of axles pivotally secured to the chassis at respective pivot points between a stowed position and a working position, each axle coupleable with a wheel assembly at distal ends thereof;
- and
- actuators connected between the chassis and each of the plurality of axles, respectively, wherein the actuators are connected to the chassis at positions spaced from the pivot points, respectively,
- wherein each of the plurality of axles is independently controllable, wherein each of the plurality of axles comprises a multi-section telescoping assembly including a base section that is connected to the chassis and at least one movable section that is extendable and retractable relative to the base section, and wherein the wheel assemblies are connected to the axles at distal ends of the movable sections, respectively.
An aerial lift vehicle comprising:
- a chassis supporting lift vehicle components;
- and
- a pivoting axle system coupled with the chassis, the pivoting axle system including:
- a plurality of axles pivotally secured to the chassis at respective pivot points between a stowed position and a working position, each axle coupleable with a wheel assembly at distal ends thereof, wherein each wheel assembly includes a wheel with a wheel tread, and
- actuators connected between the chassis and each of the plurality of axles, respectively, wherein the actuators are connected to the chassis at positions spaced from the pivot points, respectively,
- wherein each of the plurality of axles is independently controllable, and wherein each wheel assembly comprises a spindle and king pin mounted to a respective one of the plurality of axles, a steering pivot axis being offset from both a rotating axis of the wheel and a plane through a center of the wheel tread.
A pivoting axle system for an aerial lift vehicle including a chassis, the pivoting axle system comprising a pair of front axles supporting a corresponding pair of front wheels with wheel treads and a pair of rear axles supporting a corresponding pair of rear wheels with wheel treads, the front and rear axles being pivotally secured to the chassis at respective pivot points, wherein the front and rear axles are selectively positionable between a transport position, where the front wheels are a first distance apart from each other and the rear wheels are a second distance apart from each other, and a working position, where the front wheels are a third distance apart from each other and the rear wheels are a fourth distance apart from each other, the third distance being greater than the first distance, and the fourth distance being greater than the second distance, each of the front and rear wheels being connected to the front and rear axles, respectively, with a spindle and king pin, wherein a steering pivot axis of each of the wheels is offset from both a rotating axis of the wheel and a plane through a center of the wheel tread.
Dependencies are inferred from the claim text.