WING DEPLOYMENT AND LOCK MECHANISM

• US 20180112959A1
• Filed: 10/26/2016
• Published: 04/26/2018
• Est. Priority Date: 10/26/2016
• Status: Active Grant

• Current Assignee: Simmonds Precision Products, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Simmonds Precision Products, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Buttolph, Martin Edwy
• Granted Patent: US 10,641,590 B2
• Time in Patent Office: Days
• CPC Class Codes: F42B 10/18 using a longitudinally slidable support member

Abstract

A lock block for use in a flight vehicle to deploy and lock wings in a deployed position with the lock block having a forward end and an aft end and including a support member, a resilient member adjacent the aft end of the lock block, a first deploy pin extending from the resilient member, a second deploy pin extending from the resilient member, and a wedge located on a bottom side of the resilient member. The first deploy pin and the second deploy pin are each configured to engage a groove in a wing of the flight vehicle to push each wing into a deployed position.

Claims

1. A wing deployment and lock mechanism comprising:

a first wing configured to pivot about a first pivot pin at an inner end of the first wing with the first wing having a first groove in the inner end of the first wing;

a second wing configured to pivot about a second pivot pin at an inner end of the second wing with the second wing having a second groove in the inner end of the second wing;

a lock block adjacent to the inner end of the first wing and the inner end of the second wing, the lock block having a forward end and an aft end comprising;

a resilient member adjacent the aft end;

a first deploy pin configured to be positioned within the first groove in the first wing when the first wing is in a stowed position and be positioned forward of the first groove of the first wing when the first wing is in a deployed position;

a second deploy pin configured to be positioned within the second groove in the second wing when the second wing is in a stowed position and be positioned forward of the second groove of the second wing when the second wing is in the deployed position; and

a wedge between the forward end and the aft end, the wedge configured to be aft of the first wing and the second wing when in the stowed position and to contact and lock the inner end of the first wing and the inner end of the second wing in place when in the deployed position.

2. The wing deployment and lock mechanism of claim 1, further comprising:

a housing adjacent to the lock block, the housing including a mating feature that extends downward; and

a slot in the lock block extending from the forward end to the aft end of the lock block, the slot being adjacent to the mating feature and configured to allowed the mating feature to slide therein.

3. The wing deployment and lock mechanism of claim 2, wherein the slot is wider at the aft end of the lock block than at the forward end of the lock block.

4. The wing deployment and lock mechanism of claim 2, wherein the mating feature is wider at an aft end of the mating feature than at a forward end of the mating feature.

5. The wing deployment and lock mechanism of claim 1, wherein the wedge has a width that is greater near the aft end than a width of the wedge near the forward end of the lock block.

6. The wing deployment and lock mechanism of claim 5, wherein a forward portion of the inner end of the first wing forms a locking surface that extends further inward from the first pivot pin when in the deployed position than an aft portion of the inner end of the first wing so that the first wing is locked in place by the wedge contacting the locking surface on the inner end of the first wing and cannot pivot about the first pivot pin when in the deployed position, and wherein a forward portion of the inner end of the second wing forms a locking surface that extends further inward from the second pivot pin when in the deployed position than an aft portion of the inner end of the second wing so that the second wing is locked in place by the wedge contacting the locking surface on the inner end of the second wing and cannot pivot about the second pivot pin when in the deployed position.

7. The wing deployment and lock mechanism of claim 1, wherein the lock block is located on a centerline that extends an equal distance between the first pivot pin and the second pivot pin.

8. The wing deployment and lock mechanism of claim 1, wherein the first deploy pin and the second deploy pin extend from a bottom side of the lock block.

9. The wing deployment and lock mechanism of claim 1, wherein the wedge is located on a bottom side of the lock block.

10. The wing deployment and lock mechanism of claim 1, wherein the first groove in the first wing and the second groove in the second wing are similarly shaped but mirrors of one another so that the first deploy pin moves through the first groove and the second deploy pin moves through the second groove an equal distance from the stowed position to the deployed position to make the first wing and the second wing deploy at a same rate.

11. The wing deployment and lock mechanism of claim 1, wherein the first wing and the second wing in the deployed position are each positioned approximately eighty degrees from the first wing and the second wing in the stowed position, respectively.

12. A method for deploying two wings, the method comprising:

pushing a lock block in a forward direction through the use of a resilient member at an aft end of the lock block, the lock block includes two deploy pins and a wedge positioned between the forward end and the aft end;

moving the lock block from a stowed position where each of the two deploy pins are within grooves in the two wings to a deployed position where each of the two deploy pins are forward of the two wings, are no longer within the grooves, and have forced the two wings to have pivoted through a deploy angle; and

positioning the wedge between inner ends of the two wings so that the two wings are locked in place and cannot pivot out of the deployed position.

13. The method of claim 12, further comprising:

releasing a stowed wing lock device to allow the resilient member to push the lock block forward.

14. The method of claim 12, wherein the two deploy pins move within the grooves to encourage the two wings to pivot from the stowed position to the deployed position.

15. The method of claim 12, wherein the wedge is located on a bottom side of the lock block.

16. The method of claim 12, wherein the two deploy pins extend from a bottom side of the lock block to engage the grooves.

17. A lock block having an aft end and a forward end comprising:

a support member;

a resilient member adjacent the aft end of the lock block;

a first deploy pin extending from the support member;

a second deploy pin extending from the support member; and

a wedge located on a bottom side of the support member.

18. The lock block of claim 17, wherein the first deploy pin and the second deploy pin extend from the bottom side of the support member adjacent the forward end.

19. The lock block of claim 17, further comprising:

a body at the aft end of the lock block between the support member and the resilient member, the body having at least one resilient member hole into which the resilient member extends.

20. The lock block of claim 17, wherein the wedge is wider near the aft end than the wedge near the forward end of the body.