IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0362825
(2001-08-24)
|
우선권정보 |
SE-0003061(2000-08-31) |
국제출원번호 |
PCT/SE01/001801
(2001-08-24)
|
§371/§102 date |
20030905
(20030905)
|
국제공개번호 |
WO02/018867
(2002-03-07)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
4 |
초록
▼
The invention relates to a canard fin unit intended for guiding artillery projectiles (1) fired on ballistic trajectories, which comprises a number of identical canard fins, deployable from a first passive, retracted position into a second active position once the projectile (1) associated with the
The invention relates to a canard fin unit intended for guiding artillery projectiles (1) fired on ballistic trajectories, which comprises a number of identical canard fins, deployable from a first passive, retracted position into a second active position once the projectile (1) associated with the fin unit has been launched from the barrel from which it is intended to be fired, the canard fins ( 3a-d) in the active position being individually controllable. The invention resides in the fact that each canard fin (3a-d ) is individually supported and controlled in its own swivel arm (6 a-d), extending in the longitudinal direction of the projectile, which arm is in turn pivoted about its own swivel shaft (7a-d) arranged transversely to the direction of flight of the projectile, the swivel arms (6a-d) of all canard fins (3a-d) being moved together from the retracted to the deployed position by one and the same operating element (10), displaceable in the longitudinal direction of the projectile. In an especially preferred embodiment of the canard fin unit according to the invention the said fins (3a-d) are each coupled to their respective control elements (8a-d), 9a-d), 24a-d) only when they reach their respective deployed positions.
대표청구항
▼
The invention claimed is: 1. A canard fin unit suitable for attachment to an artillery projectile having an aerodynamic outer shape, the fin unit comprising: a plurality of canard fins which are each capable of deployment from a retracted position within the aerodynamic outer shape into a deployed
The invention claimed is: 1. A canard fin unit suitable for attachment to an artillery projectile having an aerodynamic outer shape, the fin unit comprising: a plurality of canard fins which are each capable of deployment from a retracted position within the aerodynamic outer shape into a deployed position, wherein each of the plurality of canard fins is located outside the aerodynamic outer shape after the artillery projectile has been launched; a plurality of swivel arms each arranged along a longitudinal direction of the artillery projectile and coupled to an associated one of the plurality of canard fins so that each of the plurality of canard fins is individually pivotable on the associated swivel arm about a control shaft that is arranged in a direction transverse to the longitudinal direction of the artillery projectile and supported by the swivel arm; a plurality of control arms, each of which is coupled to a respective one of the plurality of swivel arms, wherein each of the plurality of control arms is aligned transversely to a surface area of an associated canard fin; and a plurality of operating rods, each of said plurality of operating rods being operably connected to a respective one of the plurality of control arms, wherein, when the associated canard fin is in the deployed position, said each of said plurality of operating rods is displaceable in the longitudinal direction of the projectile to effect a control function of the projectile, wherein each of the plurality of swivel arms are supported at one end thereof in a manner that allows each of the plurality of swivel arms to rotate about an associated swivel shaft arranged transversely to the longitudinal direction of the artillery projectile and perpendicular to said control shaft, and wherein a movement pattern of each of the plurality of swivel arms comprises rotating the associated one of the plurality of canard fins outward from the retracted position within the aerodynamic outer shape into the deployed position. 2. The canard fin unit of claim 1, wherein each of the associated swivel shafts is arranged ahead of the associated canard fin along the longitudinal direction in a flight direction of the artillery projectile. 3. The canard fin unit of claim 1, further comprising a plurality of slots located within the aerodynamic outer shape, wherein the plurality of slots are configured to accommodate the plurality of canard fins in the retracted position, wherein an edge side in each of the plurality of slots is arranged such that, in the retracted position, a trailing edge of an associated canard fin bears against the edge side; and wherein each of the plurality of swivel arms is supported at a position located ahead of a leading edge of the associated canard fin. 4. A canard fin unit suitable for attachment to an artillery projectile having an aerodynamic outer shape, the fin unit comprising: a plurality of canard fins which are each capable of deployment from a retracted position within the aerodynamic outer shape into a deployed position, wherein each of the plurality of canard fins is located outside the aerodynamic outer shape after the artillery projectile has been launched; a plurality of swivel arms each arranged along a longitudinal direction of the artillery projectile and coupled to an associated one of the plurality of canard fins so that each of the plurality of canard fins is individually pivotable on the associated swivel arm about a control shaft that is arranged in a direction transverse to the longitudinal direction of the artillery projectile and supported by the swivel arm; and a command-controlled operating element that is displaceable in the longitudinal direction and bears against control cams arranged on an inner edge side of each of the swivel arms facing a centerline of the projectile, and which comprises locking edges which are initially locked in respective locking slots in each of the plurality of swivel arms so as to prevent movement of a swivel arm, wherein, said command-controlled operating element is operable to release said locking edges and thereafter cause movement of the plurality of swivel arms and the plurality of canard fins from the retracted position to the deployed position, wherein each of the plurality of swivel arms are supported at one end thereof in a manner that allows each of the plurality of swivel arms to rotate about an associated swivel shaft arranged transversely to the longitudinal direction of the artillery projectile and perpendicular to said control shaft, and wherein a movement pattern of each of the plurality of swivel arms comprises rotating the associated one of the plurality of canard fins outward from the retracted position within the aerodynamic outer shape into the deployed position. 5. The canard fin unit of claim 4, further comprising a plurality of slots located within the aerodynamic outer shape, wherein the plurality of slots are configured to accommodate the plurality of canard fins in the retracted position, wherein an edge side in each of the plurality of slots is arranged such that, in the retracted position, a trailing edge of an associated canard fin bears against the edge side, and wherein each of the plurality of swivel arms is supported at a position located ahead of a leading edge of the associated canard fin. 6. A canard fin unit suitable for attachment to an artillery projectile having an aerodynamic outer shape, the fin unit comprising: a plurality of canard fins which are each capable of deployment from a retracted position within the aerodynamic outer shape into a deployed position, wherein each of the plurality of canard fins is located outside the aerodynamic outer shape after the artillery projectile has been launched; a plurality of swivel arms each arranged along a longitudinal direction of the artillery projectile and coupled to an associated one of the plurality of canard fins so that each of the plurality of canard fins is individually pivotable on the associated swivel arm about a control shaft that is arranged in a direction transverse to the longitudinal direction of the artillery projectile and supported by the swivel arm; wherein each of the plurality of swivel arms are supported at one end thereof in a manner that allows each of the plurality of swivel arms to rotate about an associated swivel shaft arranged transversely to the longitudinal direction of the artillery projectile and perpendicular to said control shaft, and wherein a movement pattern of each of the plurality of swivel arms comprises rotating the associated one of the plurality of canard fins outward from the retracted position within the aerodynamic outer shape into the deployed position, wherein each of the plurality of swivel arms comprises support surfaces arranged in a plane in which said rotating is performed and which are configured to interact with opposing stop surfaces when the plurality of swivel arms are in the deployed position, wherein the operating element acts on the plurality of swivel arms in respective directions of deployment after said plurality of swivel arms have completed movement to the deployed position. 7. The canard fin unit of claim 6, wherein the operating element comprises a preloaded spring assembly, wherein at least a portion of spring force stored in the spring assembly is released when the plurality of canard fins are moved to the deployed position, wherein the spring assembly is arranged such that a direction of a preloading of the spring assembly aligns with an acceleration resulting from a firing of the artillery projectile. 8. The canard fin unit of claim 6, further comprising a plurality of slots located within the aerodynamic outer shape, wherein the plurality of slots are configured to accommodate the plurality of canard fins in the retracted position, wherein an edge side in each of the plurality of slots is arranged such that, in the retracted position, a trailing edge of an associated canard fin bears against the edge side, and wherein each of the plurality of swivel arms is supported at a position located ahead of a leading edge of the associated canard fin. 9. A canard fin unit suitable for attachment to an artillery projectile having an aerodynamic outer shape, the fin unit comprising: a plurality of canard fins which are each capable of deployment from a retracted position within the aerodynamic outer shape into a deployed position, wherein each of the plurality of canard fins is located outside the aerodynamic outer shape after the artillery projectile has been launched; a plurality of swivel arms each arranged along a longitudinal direction of the artillery projectile and coupled to an associated one of the plurality of canard fins so that each of the plurality of canard fins is individually pivotable on the associated swivel arm about a control shaft that is arranged in a direction transverse to the longitudinal direction of the artillery projectile and supported by the swivel arm; and a preloaded spring assembly, wherein at least a portion of spring force stored in the spring assembly is released when the plurality of canard fins move to the deployed position, wherein the spring assembly is arranged such that a direction of a preloading of the spring assembly aligns with an acceleration resulting from a firing of the artillery projectile, wherein each of the plurality of swivel arms are supported at one end thereof in a manner that allows each of the plurality of swivel arms to rotate about an associated swivel shaft arranged transversely to the longitudinal direction of the artillery projectile and perpendicular to said control shaft, and wherein a movement pattern of each of the plurality of swivel arms comprises rotating the associated one of the plurality of canard fins outward from the retracted position within the aerodynamic outer shape into the deployed position.
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