Electromagnetic boom breakaway

Patent metadata

Field	Value
Publication number	US-10375949-B2
Application number	US-201716060634-A
Country	US
Kind code	B2
Filing date	Apr 20, 2017
Priority date	May 10, 2016
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

A boom assembly, including a frame comprising a first portion and a second portion hingeably coupled to the first portion; and a hinge assembly hingeably coupling the first and second portions, the hinge assembly including first and second electromagnets coupled respectively to the first and second portions; a first switch membrane coupled to the second portion and configured to control an energy state of the first and second electromagnets.

First claim

At least the following is claimed:

1. A boom assembly, comprising:
a frame comprising a first portion and a second portion hingeably coupled to the first portion; and
a hinge assembly hingeably coupling the first and second portions, the hinge assembly comprising:
first and second electromagnets coupled respectively to the first and second portions; and
a first switch membrane coupled to the second portion and configured to control an energy state of the first and second electromagnets.

2. The boom assembly of claim 1 , wherein the first switch membrane is configured to control the energy state based on a change in state of the first switch membrane.

3. The boom assembly of claim 1 , wherein the first and second electromagnets are in a first energy state when the first portion is positioned at a first angle relative to the second portion and a second energy state when, at least during a pivoting motion according to a first direction, the first portion is positioned at a second angle relative to the second portion.

4. The boom assembly of claim 3 , wherein the second energy state comprises a low energy state or a zero energy state.

5. The boom assembly of claim 3 , wherein the second angle corresponds to a value within a pivot range by the second portion according to a pivoting motion on one side of the frame relative to the first portion.

6. The boom assembly of claim 1 , wherein the first switch membrane comprises at least two different states.

7. The boom assembly of claim 1 , wherein the energy state is based on current flow, or absence of current flow, voltage, or magnetic field strength corresponding to the first and second electromagnets.

8. The boom assembly of claim 1 , wherein the first and second electromagnets, when energized, have a combined strength sufficient to overcome an acceleration force of the frame.

9. The boom assembly of claim 1 , further comprising third and fourth electromagnets coupled to the first and second portions, respectively, and a second switch membrane coupled to the second portion.

10. The boom assembly of claim 9 , wherein the third and fourth electromagnets enable a pivoting motion of the second portion on one side of the frame and the first and second electromagnets enable a pivoting motion of the second portion on the other side of the frame.

11. The boom assembly of claim 9 , wherein the second switch membrane is configured to control an energy state of the third and fourth electromagnets.

12. The boom assembly of claim 9 , wherein the second switch membrane is configured to control the energy state of the third and fourth electromagnets based on a change in state of the second switch membrane.

13. The boom assembly of claim 9 , wherein the third and fourth electromagnets are in a first energy state when the first portion is positioned at a first angle relative to the second portion and a second energy state when, at least during a pivoting motion according to a first direction, the first portion is positioned at a second angle relative to the second portion.

14. The boom assembly of claim 13 , wherein the second energy state comprises a low energy state or a zero energy state.

15. The boom assembly of claim 13 , wherein the second angle corresponds to a value within a pivot range by the second portion according to a pivoting motion on one side of the frame relative to the first portion.

16. The boom assembly of claim 9 , wherein the second switch membrane comprises at least two different states.

17. A method, comprising:
causing a deployment of a boom assembly comprising a first portion and a second portion hingeably coupled to the first portion;
providing a first electromagnetic force between the first and second portions, the first and second portions arranged in-line relative to each other;
changing a state of a first switch membrane coupled to the second portion based on contact by the first switch membrane with an object; and
responsive to the change in state of the first switch membrane, changing the first electromagnetic force.

18. The method of claim 17 , wherein the change in the first electromagnetic force corresponds to a pivoting in a first direction of the second portion relative to the first portion based on the contact by the first switch membrane with the object, and wherein subsequent to non-contact with the object, returning the first electromagnetic force to an energy state that existed before the contact, the first and second portions returning to an in-line arrangement.

19. The method of claim 18 , further comprising:
providing a second electromagnetic force between the first and second portions, the second electromagnetic force enabling a pivoting motion of the second portion on one side of a frame of the boom assembly that is opposite to the pivoting motion of the second portion enabled by the first electromagnetic force on the other side of the frame;
changing a state of a second switch membrane coupled to the second portion based on contact with an object, the second switch membrane coupled to one side of the boom assembly that is opposite a side that the first switch membrane is coupled to; and
responsive to the change in state of the second switch member, changing the second electromagnetic force, wherein the change in the second electromagnetic force corresponds to a pivoting in a second direction of the second portion relative to the first portion, the second direction opposite to the first direction.

20. An electromagnetic breakaway system, comprising:
a boom assembly, comprising:
a frame comprising a first portion and a second portion hingeably coupled to the first portion; and
a hinge assembly hingeably coupling the first and second portions, the hinge assembly comprising:
plural electromagnets coupled to the first and second portions; and
one or more switch membrane coupled to the second portion and configured to control an energy state of the plural electromagnets;

and
circuitry coupled to the one or more switch membranes and the plural electromagnets, the circuitry configured to cause the change in energy state based on signaling from the one or more switch membranes.

Assignees

• Agco Corp

Inventors

• Snyder Todd B

Classifications

• A01M7/0078 Primary

  including break-away devices · CPC title

• F16C11/10

  Arrangements for locking · CPC title