Systems and methods for retaining and deploying canards
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F42B-010/14
B64C-009/36
F42B-010/64
F42B-010/00
B64C-009/00
출원번호
US-0748250
(2013-01-23)
등록번호
US-9012825
(2015-04-21)
발명자
/ 주소
Plumer, Matt
Gibson, Jeff
Byrne, Jim
Richardson, Brian
출원인 / 주소
Simmonds Precision Products, Inc.
대리인 / 주소
Locke Lord LLP
인용정보
피인용 횟수 :
1인용 특허 :
9
초록▼
Disclosed are systems and methods for retaining and deploying a plurality of canards and canard covers on a projectile. The projectile includes a projectile housing defining an interior chamber and a longitudinal axis, canards rotatably mounted to the housing, canard covers, a bobbin movably dispose
Disclosed are systems and methods for retaining and deploying a plurality of canards and canard covers on a projectile. The projectile includes a projectile housing defining an interior chamber and a longitudinal axis, canards rotatably mounted to the housing, canard covers, a bobbin movably disposed in the interior chamber of the housing along the longitudinal axis, and rocker arms. The canards mounted for movement from a stowed position to a deployed position. The canard covers have a hook element and are adapted to cover respective slots formed in the housing. The bobbin has first and second ends and a retaining surface proximate the second end. Rocker arms have a first and second arm end, with a canard retaining slot defined therebetween. The first arm end includes a latch element for engaging with the canard cover element, and the second arm end is positioned proximate the retaining surface.
대표청구항▼
1. A system for retaining and deploying a plurality of canards and canard covers on a projectile, the system comprising: a) a projectile housing defining an interior chamber and a longitudinal axis;b) a plurality of canards rotatably mounted to the housing and adapted for movement from a stowed posi
1. A system for retaining and deploying a plurality of canards and canard covers on a projectile, the system comprising: a) a projectile housing defining an interior chamber and a longitudinal axis;b) a plurality of canards rotatably mounted to the housing and adapted for movement from a stowed position within the housing to a deployed position;c) a plurality of canard covers, each including a hook element and each adapted to conceal respective slots formed in the projectile housing;d) a bobbin movably disposed in the interior chamber of the housing along the longitudinal axis of the projectile housing, the bobbin having first and second ends, and a retaining surface defined proximate the second end;e) a plurality of rocker arms rotatably mounted within the housing, each rocker arm having a first arm end and a second arm end, with a canard retaining slot defined therebetween configured to secure the canard in the stowed position, the first arm end including a latch element and the second arm end positioned proximate the bobbin retaining surface; andf) a mechanism for driving the bobbin along the longitudinal axis, so as to deploy the plurality of canards and canard covers on the projectile. 2. The system according to claim 1, wherein each rocker arm is configured and adapted to rotate relative to a respective rocker arm rotation axis between a first and second position. 3. The system according to claim 2, each latch element including a cover retaining surface, wherein in the first position the cover retaining surface is engaged with a corresponding internal surface of the corresponding canard cover hook element, the cover retaining surface configured and adapted to retain the corresponding canard cover over its respective slot formed in the projectile housing. 4. The system according to claim 2, wherein in the first position each second arm end is engaged with the bobbin retaining surface. 5. The system according to claim 2, wherein each rocker arm is forced to rotate relative to its respective rocker arm rotation axis into the second position when the bobbin moves along the longitudinal axis relative to the projectile housing, a cover ejection surface of the latch element of each rocker arm ejecting the respective canard cover and each canard retaining slot releasing the respective canard. 6. The system according to claim 1, wherein the mechanism for driving the bobbin is a pyrotechnic component disposed within an axial bore formed within the first end of the bobbin, configured and adapted to initiate a force on the bobbin along the longitudinal axis causing the bobbin to move along the longitudinal axis relative to the projectile housing, wherein the axial movement of the bobbin is translated into a force on the second arm end of each rocker arm causing the rotation of each rocker arm relative to a respective rocker arm rotation axis. 7. The system according to claim 1, further comprising an absorber disposed proximate to the second end of the bobbin along the longitudinal axis, configured and adapted to reduce shock to the projectile housing during deployment. 8. The system according to claim 1, wherein a surface formed on each rocker arm proximate the second arm end is configured and adapted to mechanically push the associated canard into the deployed position when the rocker arm rotates relative to a respective rocker arm rotation axis. 9. The system according to claim 1, wherein each of the canard cover hook elements includes a cammed surface. 10. The system according to claim 1, wherein each of the canard cover hook elements includes an internal surface. 11. The system according to claim 1, wherein each of the canard covers includes a main body section having forward and aft ends and a groove proximate the aft end, wherein the groove is removably engaged with projectile housing, and the canard cover hook element is defined between the forward and aft ends, proximate to the forward end. 12. The system according to claim 1, wherein each of the canard covers are configured and adapted to eliminate drag on the projectile housing. 13. The system according to claim 1, wherein the system is disposed in a tip portion of the projectile housing. 14. The system according to claim 1, further comprising a crushable replaceable absorber disposed proximate to the second end of the bobbin along the longitudinal axis, configured and adapted to reduce shock to the projectile housing during deployment. 15. The system according to claim 1, wherein each canard is configured and adapted to rotate about a respective fulcrum and in a respective plane passing through the longitudinal axis. 16. The system according to claim 1, wherein the canards are configured to be released and deployed simultaneously with one another. 17. The system according to claim 1, wherein each of the canards is configured and adapted to be locked along a respective transverse axis in the deployed position. 18. A method for ejecting a plurality of canard covers and deploying a plurality of canards on a projectile, the method comprising the steps of: driving a bobbin disposed within an interior chamber formed in the projectile longitudinally so as to cause a plurality of rocker arms to rotate about a respective rocker arm axis, each rocker arm defining a canard retaining slot configured to secure the canard in a stowed position, wherein the rotation of the rocker arms causing the ejection of the plurality of canard covers and the subsequent mechanically timed release and deployment of the plurality of canards. 19. The method according to claim 18, wherein the release and deployment of each of the canards is simultaneous with one another. 20. A system for retaining and deploying a plurality of canards and canard covers on a projectile, the system comprising: a) a projectile housing defining an interior chamber and a longitudinal axis;b) a plurality of canards rotatably mounted to the housing, wherein each canard is configured and adapted to rotate about a respective fulcrum and in a respective plane passing through the longitudinal axis from a stowed position within the housing to a deployed position;c) a plurality of canard covers, each including a hook element and each adapted to conceal respective slots formed in the projectile housing, through which the respective canards rotate from the stowed position within the housing into the deployed position;d) a bobbin movably disposed in the interior chamber of the housing along the longitudinal axis of the projectile housing, the bobbin having first and second ends, and a retaining surface defined proximate the second end;e) a plurality of rocker arms rotatably mounted within the housing, each rocker arm having a first arm end and a second arm end, with a canard retaining slot defined therebetween configured to secure the canard in the stowed position, the first arm end including a latch element and the second arm end positioned proximate the bobbin retaining surface, wherein each rocker arm is configured and adapted to rotate relative to a respective rocker arm rotation axis between a first and second position; andf) a mechanism for driving the bobbin along the longitudinal axis, the driving mechanism configured and adapted to initiate a force on the bobbin causing the bobbin to move along the longitudinal axis relative to the projectile housing, wherein the movement of the bobbin is translated into a force on the second arm end of each rocker arm causing the rotation of each rocker arm relative to its respective rocker arm rotation axis from the first position to the second position, the rotation of the rocker arms releasing the respective canards from their canard retaining slots and mechanically pushing each of the respective canards into the deployed position.
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이 특허에 인용된 특허 (9)
Geswender,Chris E.; Hinsdale,Andrew J.; Blaha,George A.; Dryer,Richard, 2-D projectile trajectory correction system and method.
Sebestyen George (Weston MA) Sinclair Ronald R. (Moultonboro NH) Smith John A. (Bedford MA) Sands Timothy B. (Acton MA) Nussdorfer Theodore J. (Lexington MA), Canard control assembly for a projectile.
McAllister, Edward; Rackers, Keith; Qato, Ledjan; Binkholder, Ryan Glen; Klakovich, Vincent Wayne, Guided projectile and method of enabling guidance thereof.
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