Leveling System for Lift Device
AssigneeOshkosh Corporation
InventorsJesse Holmes, Constantin B. Marinoiu, Stephen Z. Smith
Life of this patent
Estimating the term…
Abstract
A lift device includes a base, an arm, a drive actuator, a tractive element, and a steering actuator. The arm has a base end coupled to the base and a tractive element end. The arm includes a steering actuator interface positioned along an exterior surface of the arm. The drive actuator is pivotally coupled to the tractive element end of the arm. The tractive element is coupled to the drive actuator. The steering actuator has a first end coupled to the steering actuator interface and an opposing second end coupled to the drive actuator. The arm includes a plate extending forward of the exterior surface of the arm and past the steering actuator.
Claims20
A lift device comprising:
- a base;
- an arm having a base end coupled to the base and a tractive element end, the arm including a steering actuator interface positioned along an exterior surface of the arm;
- a drive actuator pivotally coupled to the tractive element end of the arm;
- a tractive element coupled to the drive actuator;
- and
- a steering actuator having a first end coupled to the steering actuator interface and an opposing second end coupled to the drive actuator;
- wherein the arm includes a plate extending forward of the exterior surface of the arm and past the steering actuator.
A lift device comprising:
- a base defining a first interface and a second interface;
- an arm including:
- a first portion having a first end defining a third interface that is pivotally coupled to the first interface;
- a second portion extending laterally from the first portion, wherein the second portion has a second end defining a fourth interface, an interior surface facing toward the base and defining a fifth interface, and an exterior surface facing away from the base and defining a sixth interface;
- and
- a plate extending from the exterior surface at an upward angle;
- a drive actuator pivotally coupled to the fourth interface of the arm;
- a tractive element coupled to the drive actuator;
- a pivot actuator extending between the second interface of the base and the fifth interface of the arm;
- and
- a steering actuator extending between the sixth interface and the drive actuator, wherein the plate extends past the steering actuator.
A chassis for a lift device, the chassis comprising:
- a base including a front plate, a rear plate, a right plate extending between first ends of the front plate and the rear plate, a left plate extending between opposing second ends of the front plate and the rear plate, a first interface and a second interface extending from at least one of the front plate or the right plate, a third interface and a fourth interface extending from at least one of the front plate or the left plate, a fifth interface and a sixth interface extending from at least one of the rear plate or the right plate, and a seventh interface and an eighth interface extending from at least one of the rear plate or the left plate;
- a first arm pivotally coupled to the first interface, the first arm configured to facilitate coupling a first tractive element to the base, the first arm defining a ninth interface, wherein the second interface and the ninth interface are configured to facilitate coupling a first pivot actuator between the base and the first arm;
- a second arm pivotally coupled to the third interface, the second arm configured to facilitate coupling a second tractive element to the base, the second arm defining a tenth interface, wherein the fourth interface and the tenth interface are configured to facilitate coupling a second pivot actuator between the base and the second arm;
- a third arm pivotally coupled to the fifth interface, the third arm configured to facilitate coupling a third tractive element to the base, the third arm defining an eleventh interface, wherein the sixth interface and the eleventh interface are configured to facilitate coupling a third pivot actuator between the base and the third arm;
- and
- a fourth arm pivotally coupled to the seventh interface, the fourth arm configured to facilitate coupling a fourth tractive element to the base, the fourth arm defining a twelfth interface, wherein the eighth interface and the twelfth interface are configured to facilitate coupling a fourth pivot actuator between the base and the fourth arm.
Dependencies are inferred from the claim text.