IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0396220
(2003-03-24)
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발명자
/ 주소 |
- Carlyle, John Daryl
- Hall, William
- King, Hartley Hughes
- Menna, Thomas Louis
- Romero, Lawrence Steven
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
12 인용 특허 :
16 |
초록
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The center of pressure of a projectile is caused to move upon the occurrence of an event that changes the static margin, such as the jettisoning of a body previously attached to the projectile, as noted above. In particular embodiments, this is achieved by a flare disposed toward the rear of the pro
The center of pressure of a projectile is caused to move upon the occurrence of an event that changes the static margin, such as the jettisoning of a body previously attached to the projectile, as noted above. In particular embodiments, this is achieved by a flare disposed toward the rear of the projectile. The flare has petals that deploy from a first, stowed position to a second, deployed position upon the occurrence of the event. In the stowed position, the petals are aligned with the air stream, in order to minimize drag. In the deployed position, the petals project into the air stream in such a way as to move the lift center rearward. A slide ring within the flare has sufficient inertia that it shifts aft in response to an acceleration that occurs when the attached body and the projectile are separated from one another. The slide ring is linked to the petals in such a way that the petals are deployed by the displacement of the slide ring. Detents lock the slide ring in its displaced position.
대표청구항
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1. Apparatus comprisinga support member, a projectile to which the support member is attached, an aft body attached to the rear of the projectile and adapted to be jettisoned from the projectile during flight, a plurality of petals each hinged at an end thereof to the support member, the petals bein
1. Apparatus comprisinga support member, a projectile to which the support member is attached, an aft body attached to the rear of the projectile and adapted to be jettisoned from the projectile during flight, a plurality of petals each hinged at an end thereof to the support member, the petals being arrayed in a first position around a central axis of the apparatus in a first, undeployed configuration of the apparatus, actuating means operable to swing each of the petals around its hinged end to a second position in a second, deployed configuration of the apparatus, and locking means attached to the actuating means for locking the petals in said second position, wherein the locking means includes at least a first detent finger that is initially positioned in the support member and is pulled out of the support member by the operation of the actuating means, wherein the actuating means includes a slide member that is displaced from an original position to a displaced position responsive to the operation of the actuating means and wherein the detent finger is pulled out of the support member by the displacement of the slide member to the displaced position, and wherein the detent finger is adapted to assume a configuration upon being pulled out of the support member that prevents the detent finger from re-entering the support member and thereby prevents the slide member from returning to its original position. 2. Apparatus comprisinga support member, a plurality of petals each hinged at an end thereof to the support member, the petals being arrayed in a first position around a central axis of the apparatus in a first, undeployed configuration of the apparatus, actuating means operable to swing each of the petals around its hinged end to a second position in a second, deployed configuration of the apparatus, means attached to the actuating means for locking the petals in said second position, wherein the actuating means includes a slide member that is displaced from an original position to a displaced position responsive to the operation of the actuating means, retaining means, at least one slide support attached to the slide member, the retaining means providing a base for the slide support and thereby initially preventing movement of the slide member, a projectile to which the support member is attached, and an aft body attached to the rear of the projectile and adapted to be jettisoned from the projectile during flight. 3. The apparatus of claim 2 wherein the retaining means is connected to the aft body, whereby the retaining means is pulled away from the projectile when the aft body is jettisoned, thereby allowing movement of the slide member.4. The apparatus of claim 3 wherein the retaining means is a unitary element having arms each of which engages with a respective one of the petals.5. Apparatus comprisinga support member, a plurality of petals each hinged at an end thereof to the support member, the petals being arrayed in a first position around a central axis of the apparatus in a first, undeployed configuration of the apparatus, and a slide member operable to move from an original position to a displaced position and to thereby swing each of the petals around its hinged end to a second position in a second, deployed configuration of the apparatus, retaining means, at least one slide support attached to the slide member, the retaining means providing a base for the slide support and thereby initially preventing movement of the slide support, a projectile to which the support member is attached, and an aft body attached to the rear of the projectile and adapted to be jettisoned from the projectile during flight. 6. The apparatus of claim 5 wherein the retaining means is connected to the aft body, whereby the retaining means is pulled away from the petals when the aft body is jettisoned from the projectile.7. The apparatus of claim 6 wherein the retaining means is a unitary element having arms each of which engages with a respective one of the petals.8. Apparatus including a flare, the flare comprisinga support ring having a plurality of hinge points disposed on one side of the ring, a plurality of petals each in the form of a cylindrical segment having forward and aft edges and a pair of opposing side edges, each petal having at least one hinge point disposed toward one its forward edge and connected to a respective hinge point of the ring in such a way that the side edges of the petals meet to form a cylinder whose axis passes through the center of the support ring, a slide ring centered on said axis and disposed within the cylinder, the slide ring having an original position adjacent to the support ring, the slide ring having a plurality of hinge points, there being at least one of those hinge points associated with each of the petals, each of the petals having at least one hinge point disposed on the interior side of the petal and associated with a respective hinge point on the support ring, and a plurality of links each connecting one of the hinge points on the slide ring with the associated petal hinge point in such a way that movement of the slide ring in a direction parallel to said axis and away from the support ring to a displaced position causes the aft edge of each the petals to swing outwardly away from said axis, and means connected to the slide ring for locking the slide ring in the displaced position once it has moved there, thereby maintaining the petals in an outwardly swung position. 9. The apparatus of claim 8 wherein means for locking comprises a plurality of pre-bent resilient detents each connected to the slide ring and each straightened to be aligned with and inserted into a respective recess in the support ring when the slide ring is in said original position, each detent being pulled from the respective recess and returning to a pre-bent state upon the movement of the slide ring to said displaced position so as to be no longer aligned with its respective recess and so as to thereby prevent the slide ring from returning to its original position once it is in its displaced position.10. The apparatus of claim 8 wherein there are four of said petals.11. The apparatus of claim 8 wherein each of the petals is connected to a hinge point of the support ring using at least one flared-end pin.12. The apparatus of claim 8 further comprising a retaining means, and plurality of slide supports attached to the slide ring, the retaining means providing a base for the slide supports and thereby preventing movement of the slide ring.13. The apparatus of claim 12 further wherein the retaining means is adapted to grab the aft edge of each of the petals, the retaining means being able to be pulled away from the petals, thereby allowing subsequent movement of the slide ring and thereby allowing the petals to swing outwardly in response to said movement.14. The apparatus of claim 13 further comprisinga projectile to which the support ring is attached, and an aft body attached to the rear of the projectile and adapted to be jettisoned from the projectile during flight. 15. The apparatus of claim 14 wherein the retaining means is connected to the aft body, whereby the petal retaining means is pulled away from the petals when the aft body is jettisoned from the projectile.16. The apparatus of claim 14 further comprising means for accelerating the projectile coincident with the jettisoning of the aft body, the magnitude of the acceleration and the mass of the slide ring being such that the inertia of the slide ring gives rise to movement of the slide ring relative to the support ring.
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