EP1362386B1 - Reflecteur electromagnetique deployable - Google Patents
Reflecteur electromagnetique deployable Download PDFInfo
- Publication number
- EP1362386B1 EP1362386B1 EP02704870A EP02704870A EP1362386B1 EP 1362386 B1 EP1362386 B1 EP 1362386B1 EP 02704870 A EP02704870 A EP 02704870A EP 02704870 A EP02704870 A EP 02704870A EP 1362386 B1 EP1362386 B1 EP 1362386B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fact
- cloth
- support frame
- telescopic
- deployable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
- H01Q15/161—Collapsible reflectors
Definitions
- the present invention relates to the field of reflectors electromagnetic.
- document FR-A-2 723 263 describes devices comprising a deployable support frame which carries a plurality of web segments designed to form in combination, in the state deployed, reflective polyhedra.
- the present invention now aims to propose new means having an efficiency superior to the prior art.
- the deployable support frame carries a plurality of elements of canvas, designed to form in combination, in the deployed state, polyhedra reflectors.
- the deployable support frame comprises a central node which carries the extendable telescopic arm.
- the device comprises a support frame composed of a central node which carries a telescopic main mast associated with four articulated arms.
- the support frame may comprise a knot carrying six telescopic arms.
- the device is arranged in octahedron.
- an electromagnetic reflector comprising a support frame that carries at least one canvas element designed to form a reflective surface, characterized by the fact that the fabric is formed of a knitted fabric.
- a fabric formed of a knitted fabric makes it possible to fold which leads to a very small storage space, does not present any residual fold after deployment and offers great flexibility.
- the support frame comprises at least one sling which ensures a optimal deployment of the canvas.
- the sling is disposed along an edge of the canvas element.
- the device according to the present invention further comprises preferably means capable of controlling the orientation, or even the rotation, of the device, once it is deployed and dropped in free fall.
- a reflector electromagnetic device comprising a support frame which carries a plurality of canvas elements designed to form, in combination, polyhedra reflectors, characterized in that it further comprises means for control of the aerodynamic behavior able to impose an orientation of the support frame such that it has at least one outer edge horizontal.
- the horizontal outer edge is a lower edge of the annotation support.
- orientation and rotation control means comprise at least a sail of levitation.
- This frame 100 is designed to serve as support for 200 reflective fabric elements.
- the frame 100 is also adapted for allow rapid and autonomous deployment of the reflector device according to the invention preferably having the general shape of an octahedron.
- This frame 100 is adapted to guarantee excellent accuracy geometric (orthogonality of the faces formed by the 200 elements of canvas between them), as well as a good flatness of each panel composed by these elements, to ensure the effectiveness of the reflector.
- the deployable support frame 100 conforms to the present invention comprises a central node 110 which carries six arms intended, after deployment, to be positioned respectively orthogonal two by two from the central node 110.
- the deployable support frame 100 thus comprises a central telescopic mast 120 linked to the node 110 and four articulated arm 130 on the node 110.
- the device according to the present invention in position deployed the device according to the present invention defines a structure to six orthogonal arms two by two distributed in three orthogonal planes between them each coinciding with four of said arms.
- the central mast 120 is formed of two telescopic elements 122, 124.
- the element 122 is formed of a rod or tube external main of the mast 120 which receives an internal sliding rod secondary, of smaller section, composing the telescopic element 124.
- the elements 122, 124 are rectilinear and substantially similarly length.
- auxiliary arms 130 are also rectilinear and of length substantially equal to that of the elements 122, 124 above.
- the element 122 of the telescopic mast 120 is fixed by one end on the node 110, by its end at which the element emerges 124.
- Node 110 is formed of a part having a through channel 112.
- This channel 112 slidably receives the telescopic element 124 of the mast that is coaxial.
- Node 110 also carries on its outer periphery four clevises 114 on which the pivoting arms are respectively articulated 130, around axes 116.
- the axes 116 are transverse to the longitudinal axis of the mast 120 and of the channel 112.
- the clevises 114 are equidistributed around the axis of the channel 112, at 90 ° from each other.
- the axes 116 of the yokes 114 are oriented in a peripheral general direction with respect to the axis of the channel 112 and to the axis longitudinal of the mast 120.
- the axes 116 of the yokes 114 are parallel and orthogonal respectively two by two.
- Each pair of arms defined by the mast 120 and the auxiliary arms 130 carries a 200 canvas element of triangular general geometry.
- the device according to the present invention defines eight Concave cube corners, as seen in Figure 17, once deployed.
- the device according to the present invention corresponds to a octahedron.
- each arm 130 and elements 122, 124 of the telescopic mast is of the order of 900 mm.
- FIG. device occupies a cylindrical volume of a length of the order of 1 m and a diameter of about 55 mm.
- the device according to the present invention is associated with a deployment means comprising a gas generator to base of a pyrotechnic material.
- a seal such as an O-ring 142 is placed between the two telescopic elements 122, 124.
- the element main 122 of the mast 120 is associated with a gas generator type pyrotechnic 180, which opens into the internal volume of the element 122.
- Such a generator 180 may be formed of a structure known in itself under the name of igniter plug, fixed on the second end of the element 122, namely that opposite to the support node 110.
- Such a generator 180 generates gas under pressure in the element 122 of the telescopic mast. The generation of gas thus applies a pressure on the element 124 and tends to deploy it telescopically in the manner of a cylinder or piston.
- the generator 180 preferably comprises a body 182 which carries at least one pyrotechnic composition 184 associated with a primer 186 likely to be initiated by a striker 188 itself associated with a control lever or spoon 189.
- the gas generator 180 is integrated inside the telescopic central mast 120.
- the gases from the combustion are released in the central mast 120 which elongates (deployment of the element 124 with respect to the section of base 122) under the effect of the pressure (cylinder effect).
- central mast 120 which ensures the deployment of the structure by pulling on the peripheral arms 130 by intermediate slings 140.
- a sling 140 between each pair of adjacent vertices of the device, that is, between the ends of the arms 130 and the ends of the mast telescopic 120.
- each of the six vertices of the device is connected to the four adjacent vertices via a respective sling 140.
- the device thus comprises a total of twelve slings 140.
- the slings 140 are preferably formed of a material low elongation such as Kevlar (registered trademark).
- each sling 140 is equal to the length that separates two adjacent vertices of the structure, in the deployed position, from so that the slings are stretched to the expanded state of the structure and firmly hold the arms 120 and 130 firmly.
- the gas generator 180 is adapted to define two successive regimes of separate operation: a slow phase, then a fast phase.
- the initial slow phase allows a slow rise in pressure in the telescopic mast 120, to ensure the deployment of the structure without damage.
- the effort during this first phase is the order of a few tens of newtons.
- the following rapid phase corresponds to the tensioning of the reflector and requires a greater effort, typically of the order of 300 newtons.
- the gas generator 180 may comprise, for example, as illustrated in FIG. 8, a composition packaged in the form of two sets separate 190, 192.
- the first assembly 190 whose combustion ensures the first phase, slow, is formed of a single cylindrical block conditioned tablet in order to present a relatively slow operating regime (called "cigarette burning").
- the second set 192 is formed of a plurality of blocks (five for example) of compressed composition which is characterized by a fast burning regime.
- the telescopic mast 120, as well as the peripheral articulated arms 130 may be made of any suitable material. Preferably they are made of metal or composite material.
- the deployment of the structure is operated during the displacement of the auxiliary rod 124, by through the traction then exerted on the pivoting arms 130 by the slings 140.
- means are provided to assist the deployment of the pivoting arms 130, in the form of spring elements 170.
- these spring elements 170 are interposed between the base element 122 of the mast telescopic 120 and respectively each of the oscillating arms 130.
- the device can be seen in the folded position, the arms oscillating 130 being contiguous along the base element 122 of the mast telescopic 120 and the auxiliary rod 124 being retracted into the element of base 122.
- Figure 5 shows the beginning of the deployment of the structure, the rod 124 beginning to be deployed on the outside of the base element 122 and the four arms 130 starting their pivoting, because of the traction exerted by the slings 140, assisted in this by the elastomeric springs 170.
- the device according to the present invention further comprises a device for locking the arms 130 in position deployed.
- Such a locking system can be the object of many embodiments.
- Such a locking device obviously has a function to preserve the geometric precision.
- Such a locking system also makes it possible to overcome the effects of the internal pressure drop on the telescopic mast 120 following the decrease in the temperature of the gases.
- the means said locks are formed from a metal ring 160 designed to interfer, once the device is placed in the deployed position, with grooves 123, 125 respectively formed on the base element 122 and the telescopic element 124 of the mast 120.
- the metal ring 160 is disposed in the node 110. At rest, the ring 160 has a diameter greater than that outside the tube telescopic 124. The ring 160 is thus placed in the groove 123 of the element 122. Thus, there is no friction between the ring 160 and the tube 124 telescopic mast.
- the telescopic tube 124 is provided at its end internal to the base member 122 of a cone 126 flared towards its end.
- the O-ring 140 mentioned above is preferably provided at the level of this flared cone 126.
- the outer diameter of the cone 126 is greater than the diameter internal at rest of the ring 140.
- the cone 126 comes to solicit and open the ring 140.
- the cone 126 of the element telescopic 124 is provided with the groove 125 above, on its outer surface.
- the locking device thus formed presents among other things the advantages: reduced number of parts, reliability and efficiency of locking, good temperature resistance, no friction during mast movement, and good aging.
- each of the tubes 130, and therefore the basic element 122 and the element 124 itself of the mast 120 are each telescopic, that is to say each formed of at least two elements capable of relative sliding along their axis to ensure an increase in length.
- This variant makes it possible at the same time to have a structure deployed of great amplitude and a reduced storage volume.
- the support frame the aforementioned deployable 100 is associated with several canvas elements forming reflector.
- the support frame 100 carries twelve triangular panels 200 clean to form eight concave cube corners in octahedron.
- These panels 200 are designed to reflect the waves in a certain frequency range.
- the panels 200 are fixed four to four on hems or textile sheaths 210 which provide the interface dressing structure in covering the arms 130 of the frame.
- the edge of the panels 200 adjacent to the telescopic mast 120 is also fitted with a four-panel hem or scabbard.
- the latch equipping the telescopic portion 122 is, however, wider for allow the tube to slide.
- this hem is gathered on the folded part.
- the hem placed on the base element 122 of the telescopic mast is preferably made of a material resistant to elevation of temperature of skin subsequent to the operation of the gas generator 180.
- each of the panels triangular 200 is provided at its radially outer free edge a small hem 220 in which is engaged respectively one of the slings 140.
- Each sling 140 can slide in the hem 220 associated.
- the gas pressure generated by the gas generator 180 results in a thrust in the axis of the central mast 120 which is distributed in the slings 140 and thus allows the tensioning reflective webs 200.
- Figure 14 illustrates the radially internal angle of a panel 200.
- each panel 200 is provided with a reinforcement 230 to level of each of its angles.
- Each reflector element 200 is preferably formed based on of a knitted yarn 240.
- it is preferably a knit jersey 7 gauge made with a 242 polyester thread wrapped with a nickel thread 244 as shown in FIG. 15 (i.e., a thin strip of nickel 244 is spirally wound around the polyester yarn 242.
- the metric number of the thread is 22 (22000 m of thread weigh 1 kg).
- the diameter of the polyester yarn 242 is typically between 200 and 250 ⁇ m.
- the density of the fabric is typically between 80 and 85 gr / m 2 .
- the yarn 244 has a section oblong, for example almost rectangular, to allow a good electrical contact at each point of adjacency between two sections of wire 240.
- This solution is used in the context of the invention because it makes it possible to have a highly conductive wire, to improve the quality of contacts elementary wire to wire while using a wire with good characteristics mechanical.
- the jersey knitting mode allows a realization simple and inexpensive raw material for a mesh size given.
- polyester base yarn 242 can be replaced by any equivalent material, for example polyamide.
- nickel covering yarn 244 can be replaced by any equivalent material, for example steel or copper plus nickel.
- each triangular panel Reflector 200 can be formed from metallized polyester tulle.
- Such a panel based on metallized polyester tulle may be formed from cotton, silk, thermoplastic material or equivalent, arranged in a network of stitches, for example generally hexagonal mesh.
- the metallization can be obtained by nickel deposition, for example of a thickness of the order of 1 micron.
- the diameter of the base wire is typically of the order of 200 ⁇ m and the panel density of the order of 30 to 40 g / m 2 .
- the device according to the present invention comprises means 300 designed to control the aerodynamic behavior of the reflector during its fall free.
- these means 300 have the function of controlling both the orientation and the possible rotation of the reflector during its fall free.
- the means 300 can be adapted to control a position of equilibrium not on a horizontal edge as shown on Figure 17, but on three horizontal edges.
- the means Orientation 300 includes a parachute shaped canvas dome 310.
- This fabric 310 may be formed for example of a very light canvas square and very porous connected to the two upper peripheral nodes 150, 152 and at both ends of the telescopic central pole 120 as seen at According to this figure, the fabric 310 is fixed directly on the knots 150, 152.
- the fabric 310 is also connected to the ends of the telescopic central mast 120 via slings 312, 314.
- the fabric 310 is 1060 x 1060 mm and the slings 312, 314 connecting the canvas 310 to the ends of the central mast 120 have a length of the order of 500 mm.
- the use of a porous material to make the fabric 310 allows to remove the lift in favor of the drag without harming at the speed of fall.
- control means 300 comprise elements 320 designed to print a rotational movement along a vertical axis during the fall reflector.
- These means 320 have a symmetry with respect to an axis vertical passing through the center of the node 110 and the middle of one of the edges defined by a sling 140.
- these means 320 are formed of two small triangles of very light and non-porous fabric 322, 324, arranged on the upper inclined panels arranged respectively at end of the central mast 120 and symmetrical with respect to the central node 110, that is to say placed respectively between the two sections 122, 124 of the telescopic mast 120 and the two arms 130 coplanar in a plane vertical, directed upward from the central node 110.
- the reflective octahedron previously described can be associated with metallic or metallic flakes (chaff in terminology Anglo-Saxon).
- octahedrons for example typically from 3 to 10, including octahedra of different size.
- the present invention is not limited to the embodiment of an octahedron, but extends to the realization of any polyhedron.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aerials With Secondary Devices (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Optical Elements Other Than Lenses (AREA)
- Details Of Aerials (AREA)
- Road Signs Or Road Markings (AREA)
- Holo Graphy (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
- la figure 1 représente une vue générale schématique en perspective d'un dispositif conforme à la présente invention,
- la figure 2 représente une vue partielle d'une armature support conforme à la présente invention, en partie déployée,
- la figure 3 représente la même armature support conforme à la présente invention, en position repliée,
- les figures 4, 5 et 6 représentent schématiquement le dispositif conforme à la présente invention à trois étapes successives de sa phase de déploiement,
- la figure 7 représente une courbe illustrant la montée en pression des gaz d'un générateur pyrotechnique assurant le déploiement, en fonction du temps,
- la figure 8 représente schématiquement un agencement préférentiel de moyens pyrotechniques propres à générer des gaz de déploiement, conformes à l'invention,
- les figures 9, 10, 11 et 12 représentent des moyens de verrouillage d'un mât télescopique conforme à la présente invention lors de quatre étapes successives du déploiement,
- la figure 13 représente une vue partielle d'un élément de toile conforme à l'invention au niveau de l'un de ses angles radialement externes coopérant avec un bras et une élingue,
- la figure 14 représente une vue de détail d'une toile dans sa zone angulaire radialement interne coopérant avec deux bras, à proximité du noeud central,
- la figure 15 représente un fil guipé utilisé de préférence dans le cadre de l'invention pour la réalisation de la toile,
- la figure 16 représente schématiquement les mailles d'une toile tricotée conforme à l'invention, et
- la figure 17 illustre schématiquement le dispositif conforme à la présente invention en position déployée, notamment équipé de moyens de contrôle du comportement aérodynamique.
- une position d'équilibre sur une arête comme on le voit sur la figure 17 (au moins une arête externe horizontale),
- une vitesse de rotation donnée et régulière du réflecteur sur lui-même autour d'un axe vertical,
- une bonne stabilité autour de la position d'équilibre,
- une durée de stabilisation la plus faible possible (phase de retournement),
- une vitesse de chute la plus faible possible, et
- une dérive la plus faible possible (pas de portance aérodynamique).
Claims (38)
- Dispositif formant réflecteur électromagnétique, comprenant une armature support déployable (100) qui porte au moins un élément de toile (200) conçu pour former, à l'état déployé, une surface réflectrice, l'armature support déployable (100) comprenant au moins un bras (120) déployable télescopique avec des moyens de commande comportant un générateur de gaz (180) qui débouche dans le volume interne d'un (122) des deux éléments (122, 124) du bras (120) déployable télescopique pour générer des gaz sous pression dans ce bras et le déployer, caractérisé par le fait que le générateur de gaz est un générateur pyrotechnique de gaz conçu pour définir deux phases : une première phase de montée en pression lente suivie d'une phase de montée en pression plus rapide.
- Dispositif selon la revendication 1, caractérisé par le fait que la toile (200) est formée d'un textile tricoté.
- Dispositif selon l'une des revendications 1 ou 2, caractérisé par le fait qu'il comprend des moyens (310, 322, 324) assurant le contrôle de l'orientation et de la rotation de la structure.
- Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait qu'il comprend des moyens de contrôle du comportement aérodynamique (310, 322, 324) aptes à imposer une orientation de l'armature support déployable telle que celle-ci présente au moins une arête externe horizontale.
- Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que l'armature support déployable (100) porte une pluralité d'éléments de toile (200) conçus pour former en combinaison, à l'état déployé, des polyèdres réflecteurs.
- Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que l'armature support déployable (100) comprend un noeud central (110) qui porte au moins le bras déployable télescopique.
- Dispositif selon l'une des revendications 1 à 6, caractérisé par le fait que l'armature support (100) comprend un mât télescopique (120) lié au noeud central (110) et plusieurs bras pivotants centraux montés à articulation sur le noeud central (110).
- Dispositif selon l'une des revendications 1 à 7, caractérisé par le fait que l'armature support (100) comprend un mât télescopique (120) comprenant un tronçon principal (122) qui reçoit à coulissement au moins un tronçon auxiliaire (124), caractérisé par le fait que le tronçon principal (122) est fixé sur le noeud central (110) par son extrémité d'ouverture par laquelle émerge le bras auxiliaire (124).
- Dispositif selon l'une des revendications 1 à 8, caractérisé par le fait que l'armature support (100) comprend un mât télescopique (120) et quatre bras pivotants (130).
- Dispositif selon l'une des revendications 1 à 9, caractérisé par le fait que chaque bras (120, 130) de l'armature support (100) est télescopique et lié à un noeud central (110).
- Dispositif selon la revendication 10, caractérisé par le fait que l'armature support déployable (100) comprend six bras télescopiques.
- Dispositif selon l'une des revendications 1 à 11, caractérisé par le fait qu'il comprend des moyens (170) aptes à solliciter des bras pivotants (130) en extension.
- Dispositif selon la revendication 12, caractérisé par le fait que les moyens de sollicitation des bras pivotants (130) comprennent des élingues (140).
- Dispositif selon l'une des revendications 12 ou 13, caractérisé par le fait que les moyens de sollicitation des bras pivotants (130) comprennent des blocs en élastomère (170).
- Dispositif selon l'une des revendications 1 à 14, caractérisé par le fait qu'il comprend en outre des moyens (160) aptes à assurer le verrouillage du bras télescopique (120) en position déployée.
- Dispositif selon la revendication 15, caractérisé par le fait que les moyens de verrouillage comprennent un jonc élastique (160).
- Dispositif selon l'une des revendications 15 ou 16, caractérisé par le fait que l'un des éléments (124) du bras déployable télescopique est muni d'un cône (126) adapté pour assurer l'extension d'un jonc de verrouillage (160) lors du déploiement du bras déployable télescopique, de sorte que le jonc (160) une fois expansé interfère avec des gorges prévues respectivement sur les deux éléments susceptibles de déplacement télescopique relatif.
- Dispositif selon l'une des revendications 1 à 17, caractérisé par le fait qu'il définit huit coins de cube en forme d'octaèdre.
- Dispositif selon l'une des revendications 1 à 18, caractérisé par le fait que la toile (200) est formée d'un tricot jersey jauge 7.
- Dispositif selon l'une des revendications 1 à 18, caractérisé par le fait que la toile (200) est formée de tulle polyester métallisé.
- Dispositif selon l'une des revendications 1 à 20, caractérisé par le fait que la toile (200) est formée d'un fil thermoplastique, par exemple à base de polyester, guipé métal, par exemple de nickel.
- Dispositif selon l'une des revendications 1 à 21, caractérisé par le fait que la toile comprend un fil métallique de guipage (244) de section allongée.
- Dispositif selon l'une des revendications 1 à 22, caractérisé par le fait que la toile (200) est montée sur les bras (120, 130) de l'armature support déployable (100) par l'intermédiaire d'ourlets (210) formés au niveau des arêtes de la toile (200).
- Dispositif selon l'une des revendications 1 à 23, caractérisé par le fait qu'il comprend des moyens de contrôle du comportement aérodynamique qui comportent une voile de sustentation (310).
- Dispositif selon la revendication 24, caractérisé par le fait que la voile de sustentation (310) est formée d'une toile poreuse.
- Dispositif selon l'une des revendications 24 ou 25, caractérisé par le fait que la voile de sustentation (310) est accrochée d'une part sur deux sommets (150, 152) de l'armature support déployable (100), et d'autre part, par l'intermédiaire d'élingues (312, 314) sur les deux extrémités d'un mât télescopique (120).
- Dispositif selon l'une des revendications 1 à 26, caractérisé par le fait qu'il comprend des moyens de contrôle du comportement aérodynamique comportant des moyens symétriques (322, 324) aptes à imposer une rotation de la structure autour d'un axe vertical.
- Dispositif selon la revendication 27, caractérisé par le fait que les moyens de contrôle de rotation comprennent deux toiles symétriques (322, 324).
- Dispositif selon la revendication 27, caractérisé par le fait que les moyens de contrôle de rotation comprennent des orifices formés dans des toiles du dispositif.
- Dispositif selon la revendication 28, caractérisé par le fait que les deux toiles (322, 324) sont fixées entre un mât télescopique (120) et les élingues (140).
- Dispositif selon les revendications 1 à 30, caractérisé par le fait qu'il comprend des moyens de contrôle du comportement aérodynamique (310, 322, 324) aptes à imposer une orientation de l'armature support déployable telle que celle-ci présente au moins une arête inférieure horizontale.
- Dispositif selon l'une des revendications 1 à 31, caractérisé par le fait qu'il comprend des moyens de contrôle de comportement aérodynamique (310, 322, 324) aptes à assurer une orientation de la structure support déployable (100) de sorte que celle-ci comprenne trois arêtes inférieures dans un plan horizontal.
- Dispositif selon l'une des revendications 1 à 32, caractérisé par le fait que le générateur pyrotechnique comprend deux pains de composition pyrotechnique (190, 192) présentant des propriétés de combustion différentes aptes à définir deux phases successives, l'une initiale de montée en pression lente, l'autre de montée en pression plus rapide.
- Dispositif selon l'une des revendications 1 à 33, caractérisé par le fait qu'il comprend des élingues (140) fixées entre deux sommets de la structure déployable (100).
- Dispositif selon la revendication 34, caractérisé par le fait que les élingues (140) sont placées dans des ourlets formés sur les bords de la toile (200).
- Dispositif selon l'une des revendications 1 à 35, caractérisé par le fait qu'il comprend douze élingues (140).
- Dispositif selon l'une des revendications 1 à 36, caractérisé par le fait que l'armature support (100) comporte au moins une élingue (140) qui assure un déploiement optimal de la toile (200).
- Dispositif selon la revendication 37, caractérise par le fait que l'élingue (140) est disposée selon une arête de l'élément de toile (200).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04012193A EP1458052B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0102484A FR2821490B1 (fr) | 2001-02-23 | 2001-02-23 | Reflecteur electromagnetique deployable |
FR0102485 | 2001-02-23 | ||
FR0102483A FR2821488B1 (fr) | 2001-02-23 | 2001-02-23 | Reflecteur electromagnetique deployable |
FR0102484 | 2001-02-23 | ||
FR0102485A FR2821491B1 (fr) | 2001-02-23 | 2001-02-23 | Reflecteur electromagnetique deployable |
FR0102483 | 2001-02-23 | ||
PCT/FR2002/000648 WO2002069441A1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04012193A Division EP1458052B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1362386A1 EP1362386A1 (fr) | 2003-11-19 |
EP1362386B1 true EP1362386B1 (fr) | 2005-11-23 |
Family
ID=27248746
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02704870A Expired - Lifetime EP1362386B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
EP04012193A Expired - Lifetime EP1458052B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04012193A Expired - Lifetime EP1458052B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Country Status (9)
Country | Link |
---|---|
US (1) | US6791486B2 (fr) |
EP (2) | EP1362386B1 (fr) |
JP (1) | JP2004521544A (fr) |
AT (2) | ATE311019T1 (fr) |
DE (2) | DE60207529T2 (fr) |
DK (2) | DK1458052T3 (fr) |
ES (1) | ES2249555T3 (fr) |
IL (1) | IL152430A (fr) |
WO (1) | WO2002069441A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1362386B1 (fr) * | 2001-02-23 | 2005-11-23 | Etienne Lacroix - Tous Artifices Sa | Reflecteur electromagnetique deployable |
IL158468A0 (en) * | 2003-10-19 | 2004-08-31 | Rafael Armament Dev Authority | Parachuted radar decoy |
JP6184066B2 (ja) * | 2012-08-31 | 2017-08-23 | 株式会社パスコ | 対空標識 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB812376A (en) | 1956-01-03 | 1959-04-22 | Anthony Edgar Porter | Improvements in radar reflectors |
US746300A (en) * | 1903-01-14 | 1903-12-08 | Thomas E Davis | Cash-register. |
US2534716A (en) * | 1945-10-08 | 1950-12-19 | Emmett L Hudspeth | Inflatable radar reflector buoy |
US2576255A (en) * | 1948-06-15 | 1951-11-27 | Emmett L Hudspeth | Reflecting fabric |
GB746300A (en) * | 1954-02-12 | 1956-03-14 | Anthony Edgar Porter | Improvements in radar reflectors |
US3047860A (en) * | 1957-11-27 | 1962-07-31 | Austin B Swallow | Two ply electromagnetic energy reflecting fabric |
US3296617A (en) * | 1963-01-23 | 1967-01-03 | Francis M Rogallo | Target kite |
US3283328A (en) * | 1963-11-13 | 1966-11-01 | Bendix Corp | Sounding balloon and target assembly |
US3618111A (en) * | 1967-04-28 | 1971-11-02 | Gen Dynamics Corp | Expandable truss paraboloidal antenna |
AR209680A1 (es) * | 1975-09-22 | 1977-05-13 | Jouanno R | Perfeccionamientos introducidos en un reflector de radar plegable |
US6507307B1 (en) * | 1982-05-14 | 2003-01-14 | Lockheed Martin Corporation | Ram-air inflated, passive decoy for millimeter wave frequencies |
JPS62168790A (ja) * | 1986-01-20 | 1987-07-25 | 三菱電機株式会社 | 飛行体 |
EP0290124A3 (fr) * | 1987-05-07 | 1990-03-21 | Trw Inc. | Filet hybride et réflecteur à micro-ondes utilisant ce filet |
JPS63284099A (ja) * | 1987-05-15 | 1988-11-21 | 株式会社島津製作所 | 宇宙空間用アンテナ展開形成装置 |
JP2635812B2 (ja) * | 1990-10-25 | 1997-07-30 | 株式会社宇宙通信基礎技術研究所 | 伸長構造体の伸長装置 |
JP2555982Y2 (ja) * | 1991-12-13 | 1997-11-26 | 日本飛行機株式会社 | レーダ用レフレクタ |
FR2690172B1 (fr) * | 1992-04-21 | 1995-05-19 | Protecma | Structure métallique pouvant être incorporée à l'intérieur de matières plastiques et articles moulés comportant une telle structure. |
US5451975A (en) * | 1993-02-17 | 1995-09-19 | Space Systems/Loral, Inc. | Furlable solid surface reflector |
US5864324A (en) * | 1996-05-15 | 1999-01-26 | Trw Inc. | Telescoping deployable antenna reflector and method of deployment |
JP2802368B2 (ja) * | 1996-11-26 | 1998-09-24 | 防衛庁技術研究本部長 | 浮遊式電子装置のスピン抑制機構 |
FR2793608B1 (fr) * | 1999-05-10 | 2001-09-14 | Aerospatiale Lanceurs Strategi | Surface reflechissant les ondes electromagnetiques et procede pour sa realisation |
JP2002111370A (ja) * | 2000-09-26 | 2002-04-12 | Japan Aircraft Mfg Co Ltd | レーダー用リフレクタ装置 |
EP1362386B1 (fr) * | 2001-02-23 | 2005-11-23 | Etienne Lacroix - Tous Artifices Sa | Reflecteur electromagnetique deployable |
-
2002
- 2002-02-21 EP EP02704870A patent/EP1362386B1/fr not_active Expired - Lifetime
- 2002-02-21 US US10/258,378 patent/US6791486B2/en not_active Expired - Lifetime
- 2002-02-21 DK DK04012193T patent/DK1458052T3/da active
- 2002-02-21 EP EP04012193A patent/EP1458052B1/fr not_active Expired - Lifetime
- 2002-02-21 DE DE60207529T patent/DE60207529T2/de not_active Expired - Lifetime
- 2002-02-21 IL IL152430A patent/IL152430A/en active IP Right Grant
- 2002-02-21 WO PCT/FR2002/000648 patent/WO2002069441A1/fr active IP Right Grant
- 2002-02-21 AT AT02704870T patent/ATE311019T1/de not_active IP Right Cessation
- 2002-02-21 AT AT04012193T patent/ATE363742T1/de not_active IP Right Cessation
- 2002-02-21 DE DE60220440T patent/DE60220440T2/de not_active Expired - Lifetime
- 2002-02-21 JP JP2002568458A patent/JP2004521544A/ja not_active Ceased
- 2002-02-21 ES ES02704870T patent/ES2249555T3/es not_active Expired - Lifetime
- 2002-02-21 DK DK02704870T patent/DK1362386T3/da active
Also Published As
Publication number | Publication date |
---|---|
ES2249555T3 (es) | 2006-04-01 |
EP1458052B1 (fr) | 2007-05-30 |
DK1362386T3 (da) | 2006-04-03 |
US20030164788A1 (en) | 2003-09-04 |
DE60220440T2 (de) | 2008-05-21 |
EP1458052A1 (fr) | 2004-09-15 |
IL152430A0 (en) | 2003-05-29 |
ATE363742T1 (de) | 2007-06-15 |
WO2002069441A1 (fr) | 2002-09-06 |
DE60207529T2 (de) | 2006-08-10 |
EP1362386A1 (fr) | 2003-11-19 |
IL152430A (en) | 2007-10-31 |
US6791486B2 (en) | 2004-09-14 |
JP2004521544A (ja) | 2004-07-15 |
ATE311019T1 (de) | 2005-12-15 |
DE60207529D1 (de) | 2005-12-29 |
DK1458052T3 (da) | 2007-09-10 |
DE60220440D1 (de) | 2007-07-12 |
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