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1. (WO2019046780) ARTICULATED BOOM TELEHANDLER
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CLAIMS:

1. A telehandler, comprising:

a frame assembly;

a plurality of tractive elements rotatably coupled to the frame assembly;

a cabin coupled to the frame assembly and configured to house an operator;

a boom assembly, comprising:

a base boom section having a proximal end pivotably coupled to the frame assembly and a distal end opposite the proximal end;

an intermediate boom section pivotably coupled to the distal end of the base boom section; and

an upper boom section having a proximal end pivotably coupled to the intermediate boom section and a distal end configured to be coupled to an implement;

a locking mechanism selectively reconfigurable between a locked configuration and an unlocked configuration, wherein the boom assembly is configured to move freely when the locking mechanism is in the unlocked configuration, and wherein, in the locked configuration, the locking mechanism is configured to couple the intermediate boom section to the frame assembly such that the locking mechanism limits rotation of the base boom section relative to the frame assembly.

2. The telehandler of Claim 1, wherein the base boom section is configured to rotate relative to the intermediate boom section about a first axis, wherein the upper boom section is configured to rotate relative to the intermediate boom section about a second axis, and wherein the first axis is not aligned with the second axis.

3. The telehandler of Claim 2, wherein the upper boom section includes at least two telescoping boom sections slidably coupled to one another and configured to vary an overall length of the upper boom section.

4. The telehandler of Claim 1, wherein at least one of:

the base boom section defines a first aperture, and the locking mechanism extends into the first aperture when the locking mechanism is in the locked configuration; and

the frame assembly defines a second aperture, and the locking mechanism extends into the second aperture when the locking mechanism is in the locked configuration.

5. The telehandler of Claim 4, wherein the base boom section defines the first aperture, wherein the frame assembly defines the second aperture, and wherein the locking mechanism extends into both the first aperture and the second aperture when the locking mechanism is in the locked configuration.

6. The telehandler of Claim 5, wherein at least one of:

the locking mechanism extends through the first aperture and into the second aperture when the locking mechanism is in the locked configuration; and

the locking mechanism extends through the second aperture and into the first aperture when the locking mechanism is in the locked configuration.

7. The telehandler of Claim 1, wherein the boom assembly has a first capacity when the locking mechanism is in the locked configuration, wherein the boom assembly has a second capacity when the locking mechanism is in the unlocked configuration, and wherein the first capacity is greater than the second capacity.

8. The telehandler of Claim 1, wherein the frame assembly includes a base frame assembly and a turntable rotatably coupled to the base frame assembly, wherein the tractive elements are coupled to the base frame assembly, and wherein the cabin and the proximal end of the base boom section are coupled to the turntable.

9. The telehandler of Claim 1, further comprising:

an outrigger coupled to the frame assembly and selectively repositionable between a stored position and a deployed position, wherein in the deployed position the outrigger engages the ground to support a portion of a weight of the telehandler; and

a controller operatively coupled to the locking mechanism, wherein the controller is configured to prevent the locking mechanism from changing from the locked configuration to the unlocked configuration in response to at least one of:

a weight of a payload supported by the implement exceeding a first threshold weight;

an orientation of the frame assembly being offset more than a threshold angle from a level orientation;

the outrigger not being in the deployed position; and

the portion of the weight of the telehandler supported by the outrigger being less than a second threshold weight.

10. A telehandler, comprising:

a frame assembly;

a plurality of tractive elements rotatably coupled to the frame assembly;

a cabin coupled to the frame assembly and configured to house an operator;

a boom assembly, comprising:

a base boom section having a proximal end pivotably coupled to the frame assembly and a distal end opposite the proximal end; and

a telescoping assembly having a proximal end pivotably coupled to the base boom section and a distal end configured to be coupled to an implement, wherein the telescoping assembly includes at least two telescoping boom sections slidably coupled to one another; and

a controller configured to selectively reconfigure the boom assembly between a high lift mode and a high capacity mode, wherein the base boom section is free to rotate throughout a range of positions relative to the frame assembly when the boom assembly is in the high lift mode, and wherein the controller is configured to limit movement of the base boom section when the boom assembly is in the high capacity mode.

11. The telehandler of Claim 10, further comprising an actuator coupled to the base boom section and the frame assembly, wherein the actuator is configured to rotate the base boom section relative to the frame assembly, and wherein the controller is configured to limit movement of the actuator when the boom assembly is in the high capacity mode.

12. The telehandler of Claim 11, further comprising a locking mechanism operatively coupled to the controller, wherein the locking mechanism is configured to selectively engage at least one of the boom assembly and the frame assembly to limit movement of the base boom section relative to the frame assembly, and wherein the controller is configured to control the locking mechanism to engage the at least one of the boom assembly and the frame assembly when the boom assembly is in the high capacity mode.

13. The telehandler of Claim 10, further comprising an outrigger coupled to the frame assembly and an outrigger sensor operatively coupled to the controller, wherein the outrigger is selectively reconfigurable between a stored position and a deployed position, wherein in the deployed position the outrigger engages the ground to support a portion of a weight of the telehandler, wherein the outrigger sensor is configured to provide at least one of (a) information relating to a position of the outrigger and (b) information relating to a weight supported by the outrigger, and wherein at least one of:

the controller is configured to prevent the boom assembly from entering the high lift mode if the outrigger is not in the deployed position; and

the controller is configured to prevent the boom assembly from entering the high lift mode if the weight supported by the outrigger is less than a threshold weight.

14. The telehandler of Claim 10, further comprising a sensor operatively coupled to the controller and configured to provide information relating to an angular orientation of the frame assembly, wherein the controller is configured to prevent the boom assembly from entering the high lift mode if the angular orientation of the frame assembly is outside of a predetermined range of angular orientations.

15. The telehandler of Claim 14, wherein the controller is configured to prevent the boom assembly from entering the high lift mode if the angular orientation of the frame assembly is offset more than a threshold angle from a level orientation.

16. The telehandler of Claim 10, further comprising a sensor operatively coupled to the controller and configured to provide information relating to a weight of a payload supported by the implement, and wherein the controller is configured to prevent the boom assembly from entering the high lift mode if the weight of the payload is greater than a threshold weight.

17. The telehandler of Claim 10, wherein the boom assembly further comprises an intermediate boom section, and wherein the distal end of the base boom section and the proximal end of the telescoping assembly are coupled to the intermediate boom section such that the telescoping assembly is indirectly coupled to the base boom section.

18. The telehandler of Claim 10, wherein the frame assembly includes a base frame assembly and a turntable rotatably coupled to the base frame assembly, wherein the tractive elements are coupled to the base frame assembly, and wherein the cabin and the proximal end of the base boom section are coupled to the turntable.

19. A boom assembly for a telehandler, comprising:

an intermediate boom section;

a base boom section having:

a proximal end configured to be pivotably coupled to a frame assembly of the telehandler; and

a distal end opposite the proximal end of the base boom section, wherein the distal end of the base boom section is pivotably coupled to the intermediate boom section such that the base boom section rotates about a first axis relative to the intermediate boom section;

a telescoping assembly including at least two telescoping boom sections slidably coupled to one another, the telescoping assembly having:

a proximal end pivotably coupled to the intermediate boom section such that the telescoping assembly rotates about a second axis relative to the intermediate boom section, wherein the first axis is offset from the second axis; and

a distal end opposite the proximal end of the telescoping assembly;

an implement coupled to the distal end of the telescoping assembly; and

a locking mechanism selectively reconfigurable between a locked configuration and an unlocked configuration, wherein the boom assembly is configured to move freely when the locking mechanism is in the unlocked configuration, and wherein the locking mechanism is configured to engage the intermediate boom section to prevent movement of the intermediate boom section relative to the base boom section when the locking mechanism is in the locked configuration.

20. The boom assembly of Claim 19, wherein the locking mechanism is configured to engage both the frame assembly and the intermediate boom section to prevent movement of the intermediate boom section and the base boom section relative to the frame assembly when the locking mechanism is in the locked configuration.