Canopy separation systems and methods for an aircraft

Patent metadata

Field	Value
Publication number	US-11623730-B2
Application number	US-202117468973-A
Country	US
Kind code	B2
Filing date	Sep 8, 2021
Priority date	Feb 5, 2021
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A canopy for an aircraft includes a pivot assembly including a first hinge and a second hinge opposite from the first hinge. The first hinge includes a first pivot slot having a first length. The first pivot slot is configured to retain a first aft pin of a fuselage of the aircraft. The second hinge includes a second pivot slot having a second length. The second pivot slot is configured to retain a second aft pin of the fuselage of the aircraft. The first length differs from the second length.

First claim

What is claimed is:

1. A canopy for an aircraft, the canopy comprising:
a pivot assembly comprising a first hinge and a second hinge opposite from the first hinge about a centerline of the canopy,
wherein the first hinge comprises a first pivot slot having a first length, wherein the first pivot slot is configured to retain a first aft pin of a fuselage of the aircraft,
wherein the second hinge comprises a second pivot slot having a second length, wherein the second pivot slot is configured to retain a second aft pin of the fuselage of the aircraft, wherein the second aft pin is coaxial with the first aft pin, and
wherein the first length differs from the second length.

2. The canopy of claim 1 , wherein the first length is longer than the second length by a distance that is substantially equal to a radius of one or both of the first aft pin or the second aft pin.

3. The canopy of claim 1 , wherein the first length exceeds the second length by approximately 0.5 inches.

4. The canopy of claim 1 , wherein one or both of the first hinge or the second hinge further comprises one or more chamfers.

5. The canopy of claim 4 , wherein the one or more chamfers slope from a pin-engaging surface to an interior surface.

6. The canopy of claim 1 , wherein the first hinge further comprises a first fork having a first upper prong separated from a first lower prong by the first pivot slot, and wherein the second hinge further comprises a second fork having a second upper prong separated from a second lower prong by the second pivot slot.

7. The canopy of claim 6 , wherein the first hinge further comprises a first intermediate body having a first locking slot configured to retain a first fore pin of the fuselage of the aircraft, and wherein the second hinge further comprises a second intermediate body having a second locking slot configured to retain a second fore pin of the fuselage of the aircraft.

8. The canopy of claim 7 , wherein the first hinge further comprises a first hinge cam extending from the first intermediate body, and wherein the second hinge further comprises a second hinge cam extending from the second intermediate body.

9. The canopy of claim 1 , further comprising a transparent cover secured to a frame, wherein the pivot assembly extends from the frame.

10. The canopy of claim 9 , wherein the pivot assembly rearwardly extends from an aft end of the frame.

11. A method of forming a canopy for an aircraft, the method comprising:
providing a pivot assembly with a first hinge and a second hinge opposite from the first hinge about a centerline of the canopy;
forming a first pivot slot having a first length within the first hinge, wherein the first pivot slot is configured to retain a first aft pin of a fuselage of the aircraft; and
forming a second pivot slot having a second length that differs from the first length within the second hinge, wherein the second pivot slot is configured to retain a second aft pin of the fuselage of the aircraft, and wherein the second aft pin is coaxial with the first aft pin.

12. The method of claim 11 , wherein the first length is longer than the second length by a distance that is substantially equal to a radius of one or both of the first aft pin or the second aft pin.

13. The method of claim 11 , wherein the first length exceeds the second length by approximately 0.5 inches.

14. The method of claim 11 , further comprising forming one or more chamfers on one or both of the first hinge or the second hinge.

15. The method of claim 14 , wherein said forming the one or more chamfers comprises sloping the one or more chamfers from a pin-engaging surface to an interior surface.

16. An aircraft comprising:
a fuselage including a first aft pin, a second aft pin, a first fore pin, and a second fore pin; and
a canopy moveably coupled to the fuselage, wherein the canopy is configured to be move between an open position and closed position, the canopy comprising:
a transparent cover secured to a frame; and
a pivot assembly extending from the frame, wherein the pivot assembly includes a first hinge and a second hinge opposite from the first hinge about a centerline of the canopy,
wherein the first hinge comprises a first fork having a first upper prong separated from a first lower prong by a first pivot slot having a first length, wherein the first pivot slot retains the first aft pin, a first intermediate body having a first locking slot that retains the first fore pin, a first hinge cam extending from the first intermediate body,
wherein the second hinge comprises a second fork having a second upper prong separated from a second lower prong by a second pivot slot having a second length, wherein the second pivot slot retains the second aft pin, a second intermediate body having a second locking slot that retains the second fore pin, and a second hinge cam extending from the second intermediate body, and
wherein the first length differs from the second length.

17. The aircraft of claim 16 , wherein the first length is longer than the second length by a distance that is substantially equal to a radius of one or both of the first aft pin or the second aft pin.

18. The aircraft of claim 16 , wherein the first length exceeds the second length by approximately 0.5 inches.

19. The aircraft of claim 16 , wherein one or both of the first hinge or the second hinge further comprises one or more chamfers.

20. The aircraft of claim 19 , wherein the one or more chamfers slope from a pin-engaging surface to an interior surface.

21. The aircraft of claim 16 , wherein the second aft pin is coaxial with the first aft pin.

Assignees

• Boeing Co

Inventors

• Walter Matthew W

Classifications

• B64C1/32 Primary

  Severable or jettisonable parts of fuselage facilitating emergency escape · CPC title

• B64C1/1476 Primary

  Canopies; Windscreens or similar transparent elements · CPC title

• B64C1/1492

  Structure and mounting of the transparent elements in the window or windscreen · CPC title

• B64D25/12 Primary

  Ejectable capsules · CPC title