EP1458052A1 - Reflecteur electromagnetique deployable - Google Patents
Reflecteur electromagnetique deployable Download PDFInfo
- Publication number
- EP1458052A1 EP1458052A1 EP04012193A EP04012193A EP1458052A1 EP 1458052 A1 EP1458052 A1 EP 1458052A1 EP 04012193 A EP04012193 A EP 04012193A EP 04012193 A EP04012193 A EP 04012193A EP 1458052 A1 EP1458052 A1 EP 1458052A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support frame
- fabric
- telescopic
- deployable
- slings
- 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.)
- Granted
Links
- 239000004744 fabric Substances 0.000 claims abstract description 28
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000011140 metalized polyester Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009940 knitting Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Images
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
-
- 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.
- devices comprising a deployable support frame which carries a plurality of fabric segments designed to form in combination, in the state deployed, reflective polyhedra.
- the present invention now aims to provide new means with greater efficiency than the prior art.
- a reflector electromagnetic comprising a support armature which carries a plurality elements of canvas designed to form, in combination, polyhedra reflectors, characterized in that it further comprises means for aerodynamic behavior control capable of imposing an orientation of the support frame such as this has at least one external edge horizontal.
- the horizontal external edge is a lower edge of the reinforcement support.
- orientation and rotation control means comprise at least a lift sail.
- This frame 100 is designed to serve as a support for 200 elements of reflective fabric.
- the frame 100 is further adapted for authorize 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 precision geometric (orthogonality of the faces formed by the canvas elements 200 between them), as well as a good flatness of each panel composed by these elements, to guarantee the efficiency of the reflector.
- the deployable support frame 100 conforms to the present invention includes a central node 110 which carries six arms intended, after deployment, to be positioned respectively orthogonal two by two from central node 110.
- the deployable support frame 100 thus comprises a telescopic central mast 120 linked to the node 110 and four arms 130 articulated 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.
- Element 122 consists of a rod or tube main external of the mast 120 which internally slides a rod secondary, of smaller section, making up the telescopic element 124.
- the elements 122, 124 are rectilinear and substantially the same length.
- auxiliary arms 130 are also rectilinear and of length substantially equal to that of the above-mentioned elements 122, 124.
- the element 122 of the telescopic mast 120 is fixed by one end on node 110, by its end at which the element emerges 124.
- the node 110 is formed of a part having a through channel 112.
- This channel 112 slidably receives the telescopic element 124 of the mast which is coaxial to it.
- the node 110 also carries on its outer periphery four yokes 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 yokes 114 are equally distributed around the axis of the channel 112, 90 ° from each other.
- the axes 116 of the yokes 114 are oriented in a general peripheral direction with respect to the axis of channel 112 and the axis longitudinal of 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 an element 200 of canvas of general triangular geometry.
- the device according to the present invention defines eight concave cube corners, as seen in Figure 17, when 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.
- the device according to the present invention occupies a cylindrical volume with a length of the order of 1 m and a diameter of the order of 55 mm.
- the device according to the present invention is associated with a deployment means comprising a gas generator 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 mast 120 is associated with a gas generator of the type pyrotechnic 180, which opens into the internal volume of the element 122.
- Such a generator 180 can be formed of a structure known as 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 element 122 of the telescopic mast. The generation of gas thus applies pressure to element 124 and tends to deploy it telescopically like 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 capable of being initiated by a striker 188 himself associated with a control lever or spoon 189.
- the gas generator 180 is integrated inside the telescopic central mast 120.
- the gases from combustion are released in the central mast 120 which is elongated (deployment of the element 124 relative to the section of base 122) under the effect of pressure (cylinder effect).
- central mast 120 ensures the deployment of the structure by pulling on the peripheral arms 130 by through slings 140.
- each of the six vertices of the device is connected to the four adjacent peaks via a respective sling 140.
- the device thus comprises a total of twelve slings 140.
- the slings 140 are preferably formed from a material to be low elongation such as Kevlar (registered trademark).
- each sling 140 is equal to the length which separates two adjacent vertices of the structure, in the deployed position, from so that the slings are tensioned in the deployed state of the structure and hold the arms 120 and 130 precisely with precision.
- the gas generator 180 is suitable for defining two successive regimes of distinct operation: a slow phase, then a fast phase.
- the initial slow phase allows a slow pressure rise 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 reflective and requires a greater effort, typically of the order of 300 newtons.
- the gas generator 180 can comprise, for example, as illustrated in FIG. 8, a composition packaged in the form of two sets separate 190, 192.
- the first set 190 whose combustion ensures the first phase, slow, consists of a single compressed cylindrical block conditioned so as to present a relatively slow operating regime (combustion known as "in cigarette").
- the second assembly 192 is formed from 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 can be made of any suitable material. Preferably, they are made of metal or based on 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.
- an elastomer block 170 is thus provided, near the central support node 110, between the telescopic mast 120 and each swinging arm 130.
- the device according to the present invention further includes an arm locking device 130 in position deployed.
- Such a locking system can be the subject of many embodiments.
- Such a locking device obviously has the function to preserve geometric precision.
- Such a locking system also makes it possible to overcome effects of the pressure drop inside the telescopic mast 120 following the decrease in gas temperature.
- the means above locking devices are formed on the basis of a metal rod 160 designed to interfere, once the device is placed in the deployed position, with grooves 123, 125 formed respectively on the base element 122 and the telescopic element 124 of the mast 120.
- central support node 110 provided with yokes 114 as well as the ends of the base element 122 and of the element telescopic 124 of the mast 120.
- the metal rod 160 is placed in the node 110. At rest, the rod 160 has a diameter greater than that of the outer tube telescopic 124. The rod 160 is thus placed in the groove 123 of the element base 122. Thus, there is no friction between the rod 160 and the tube 124 of the telescopic mast.
- the telescopic tube 124 is provided at its end internal to the base element 122 of a cone 126 flared in the direction of its end.
- the aforementioned O-ring 140 is preferably provided at this flared cone 126.
- the outer diameter of the cone 126 is greater than the diameter internal at rest of the rod 140.
- the cone 126 presses and opens the rod 140.
- the cone 126 of the element telescopic 124 is provided with the aforementioned groove 125, on its external surface.
- the locking device thus formed has inter alia the following advantages: reduced number of parts, reliability and efficiency of the locking, good temperature resistance, no friction during mast movement, and good aging.
- each of the tubes 130, and therefore the base member 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 allows both to have a structure deployed of great amplitude and a reduced storage volume.
- the support frame deployable aforementioned 100 is associated with several canvas elements forming reflector.
- the support frame 100 carries twelve triangular panels 200 suitable for forming eight concave cube corners in octahedron.
- These panels 200 are designed to reflect waves electromagnetic in a certain frequency range.
- the panels 200 are fixed four to four on hems or textile sheaths 210 which provide the structure structure interface in covering the arms 130 of the frame.
- the edge of the panels 200 adjacent to the telescopic mast 120 is also equipped with a common hem or scabbard with four panels.
- the latch fitted to the telescopic part 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 temperature rise of skin following 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 one of the slings 140.
- Each sling 140 can slide in the associated hem 220.
- 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 fabrics 200.
- FIG. 14 illustrates the radially internal angle of a panel 200.
- each panel 200 is provided with a reinforcement 230 at the level of each of its angles.
- Each reflector element 200 is preferably formed on the basis 240 knitted yarn.
- it is preferably a knitting 7 gauge jersey made with 242 polyester yarn covered with nickel yarn 244 as illustrated in Figure 15 (i.e. a thin strip of nickel 244 is spirally wound around polyester wire 242.
- the metric number of the wire is 22 (22000 m of wire weighs 1 kg).
- the diameter of the polyester thread 242 is typically between 200 and 250 ⁇ m.
- the density of the fabric is typically between 80 and 85 gr / m 2 .
- the covering yarn 244 has a cross section general oblong, for example almost rectangular, to allow a good electrical contact at each point of contact between two sections of wire 240.
- This solution is used in the context of the invention because it allows to have a very conductive wire, to improve the quality of the contacts elementary wire to wire while using a wire having good characteristics mechanical.
- the jersey knitting mode allows a realization simple and inexpensive in raw material for a mesh size given.
- 242 polyester base wire can be replaced by any equivalent material, for example polyamide.
- covering wire 244 in nickel can be replaced by any equivalent material, for example steel or copper plus nickel.
- each triangular panel reflector 200 can be formed on the basis of metallized polyester tulle.
- Such a panel based on metallized polyester tulle can be formed on the basis of cotton, silk, thermoplastic material or equivalent, arranged in a network of blocked meshes, for example generally hexagonal.
- Metallization can be obtained by depositing nickel, for example with a thickness of the order of 1 ⁇ m.
- the diameter of the base wire is typically of the order of 200 ⁇ m and the density of the panel of the order of 30 to 40 gr / 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 an equilibrium position not on a horizontal edge as illustrated on Figure 17, but on three horizontal edges.
- the means orientation 300 include a canvas dome 310 in the form of a parachute.
- This canvas 310 can be formed for example of a square of very light canvas and very porous connected to the two upper peripheral nodes 150, 152 and at both ends of the telescopic central mast 120 as seen in the figure 17.
- the fabric 310 is fixed directly on the nodes upper 150, 152.
- the fabric 310 is also connected to the ends of the telescopic central mast 120 by slings 312, 314.
- the canvas 310 is 1060 x 1060 mm and the slings 312, 314 connecting the fabric 310 to the ends of the central mast 120 have a length of the order of 500 mm.
- control means 300 include elements 320 designed to print a rotational movement, along a vertical axis, during the fall of the reflector.
- These means 320 have symmetry with respect to an axis vertical through the center of 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 respectively disposed at end of the central mast 120 and symmetrical with respect to the central node 110, that is to say disposed respectively between the two sections 122, 124 of the telescopic mast 120 and the two arms 130 located coplanar in a plane vertical, directed upwards from the central node 110.
- the previously described reflective octahedron can be associated with metallic or metallized glitter (chaff in terminology Anglo-Saxon).
- octahedra for example typically from 3 to 10, including octahedra of different sizes.
- provision may be made for complete or replace the canvas triangles 322, 324 ensuring the rotation by symmetrical or asymmetrical holes formed in the panels reflectors.
- the present invention is not limited to the realization of an octahedron, but extends to the realization of any polyhedron.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aerials With Secondary Devices (AREA)
- Optical Elements Other Than Lenses (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Details Of Aerials (AREA)
- Road Signs Or Road Markings (AREA)
- Holo Graphy (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
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 (39)
- Dispositif formant réflecteur électromagnétique, comprenant une armature support (100) qui porte une pluralité d'éléments de toile (200) conçus pour former en combinaison des polyèdres réflecteurs, caractérisé par le fait qu'il comprend en outre des moyens de contrôle du comportement aérodynamique (310, 322, 324) aptes à imposer une orientation de l'armature support telle que celle-ci présente au moins une arête externe horizontale.
- Dispositif selon la revendication 1, caractérisé par le fait que l'armature support (100) est déployable.
- Dispositif selon l'une des revendications 1 ou 2, caractérisé par le fait que l'armature support (100) comprend au moins un bras déployable télescopique (120).
- Dispositif selon l'une des revendications 1 a 3, caractérisé par le fait que la toile (200) est formée d'un textile tricoté.
- Dispositif selon l'une des revendications 1 à 4, 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 5, 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 6, 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 7, 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 8, 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 9, caractérisé par le fait que l'armature support déployable (100) comprend six bras télescopiques.
- Dispositif selon l'une des revendications 1 à 10, caractérisé par le fait qu'il comprend des moyens (170) aptes à solliciter des bras pivotants (130) en extension.
- Dispositif selon la revendication 11, caractérisé par le fait que les moyens de sollicitation des bras pivotants (130) comprennent des élingues (140).
- Dispositif selon l'une des revendications 11 ou 12, caractérisé par le fait que les moyens de sollicitation des bras pivotants (130) comprennent des blocs en élastomère (170).
- selon l'une des revendications 1 à 13, 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 14, caractérisé par le fait que les moyens de verrouillage comprennent un jonc élastique (160).
- Dispositif selon l'une des revendications 14 ou 15, 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 16, caractérisé par le fait qu'il définit huit coins de cube en forme d'octaèdre.
- Dispositif selon l'une des revendications 1 à 17, caractérisé par le fait que la toile (200) est formée d'un tricot jersey jauge 7.
- Dispositif selon l'une des revendications 1 à 17, caractérisé par le fait que la toile (200) est formée de tulle polyester métallisé.
- Dispositif selon l'une des revendications 1 à 19, 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 20, 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 21 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 22, 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 23, caractérisé par le fait que la voile de sustentation (310) est formée d'une toile poreuse.
- Dispositif selon l'une des revendications 23 ou 24, 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 25, 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 26, caractérisé par le fait que les moyens de contrôle de rotation comprennent deux toiles symétriques (322, 324).
- Dispositif selon la revendication 26, caractérisé par le fait que les moyens de contrôle de rotation comprennent des orifices formés dans des toiles du dispositif.
- Dispositif selon la revendication 27, 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 29, 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 30, 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 rev 1 à 31, caractérisé par le fait qu'il comprend des moyens de commande comportant un générateur pyrotechnique (180) de gaz.
- Dispositif selon l'une des revendications 1 à 32, caractérisé par le fait que le générateur pyrotechnique est 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 l'une des revendications 1 à 33, 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 34, caractérisé par le fait qu'il comprend des élingues (140) fixées entre deux sommets de la structure déployable (100).
- Dispositif selon la revendication 35, 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 36, caractérisé par le fait qu'il comprend douze élingues (140).
- Dispositif selon l'une des revendications 1 à 37, 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 38, caractérisé par le fait que l'élingue (140) est disposée selon une arête de l'élément de toile (200).
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0102484A FR2821490B1 (fr) | 2001-02-23 | 2001-02-23 | Reflecteur electromagnetique deployable |
| FR0102485A FR2821491B1 (fr) | 2001-02-23 | 2001-02-23 | Reflecteur electromagnetique deployable |
| FR0102484 | 2001-02-23 | ||
| FR0102485 | 2001-02-23 | ||
| FR0102483 | 2001-02-23 | ||
| FR0102483A FR2821488B1 (fr) | 2001-02-23 | 2001-02-23 | Reflecteur electromagnetique deployable |
| EP02704870A EP1362386B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02704870A Division EP1362386B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1458052A1 true EP1458052A1 (fr) | 2004-09-15 |
| EP1458052B1 EP1458052B1 (fr) | 2007-05-30 |
Family
ID=27248746
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04012193A Expired - Lifetime EP1458052B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
| EP02704870A Expired - Lifetime EP1362386B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02704870A Expired - Lifetime EP1362386B1 (fr) | 2001-02-23 | 2002-02-21 | Reflecteur electromagnetique deployable |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6791486B2 (fr) |
| EP (2) | EP1458052B1 (fr) |
| JP (1) | JP2004521544A (fr) |
| AT (2) | ATE363742T1 (fr) |
| DE (2) | DE60220440T2 (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 |
|---|---|---|---|---|
| DK1458052T3 (da) * | 2001-02-23 | 2007-09-10 | Lacroix Soc E | Udfoldelig elektromagnetisk reflektor |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB746300A (en) * | 1954-02-12 | 1956-03-14 | Anthony Edgar Porter | Improvements in radar reflectors |
| GB812376A (en) * | 1956-01-03 | 1959-04-22 | Anthony Edgar Porter | Improvements in radar reflectors |
| US3296617A (en) * | 1963-01-23 | 1967-01-03 | Francis M Rogallo | Target kite |
| US3618111A (en) * | 1967-04-28 | 1971-11-02 | Gen Dynamics Corp | Expandable truss paraboloidal antenna |
| WO1993021367A1 (fr) * | 1992-04-21 | 1993-10-28 | Protecma | Structure metallique pour des articles moules |
| EP0807991A1 (fr) * | 1996-05-15 | 1997-11-19 | Trw Inc. | Réflecteur téléscopique déployable pour antenne et procédé de déploiement du réflecteur |
| EP1052725A1 (fr) * | 1999-05-10 | 2000-11-15 | Aerospatiale Matra Lanceurs Strategiques et Spatiaux | Surface réfléchissant les ondes électromagnétiques et procédé pour sa réalisation |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US3047860A (en) * | 1957-11-27 | 1962-07-31 | Austin B Swallow | Two ply electromagnetic energy reflecting fabric |
| US3283328A (en) * | 1963-11-13 | 1966-11-01 | Bendix Corp | Sounding balloon and target assembly |
| 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 |
| US5451975A (en) * | 1993-02-17 | 1995-09-19 | Space Systems/Loral, Inc. | Furlable solid surface reflector |
| 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 |
| 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 |
| DK1458052T3 (da) * | 2001-02-23 | 2007-09-10 | Lacroix Soc E | Udfoldelig elektromagnetisk reflektor |
-
2002
- 2002-02-21 DK DK04012193T patent/DK1458052T3/da active
- 2002-02-21 DK DK02704870T patent/DK1362386T3/da active
- 2002-02-21 WO PCT/FR2002/000648 patent/WO2002069441A1/fr not_active Ceased
- 2002-02-21 EP EP04012193A patent/EP1458052B1/fr not_active Expired - Lifetime
- 2002-02-21 DE DE60220440T patent/DE60220440T2/de not_active Expired - Lifetime
- 2002-02-21 US US10/258,378 patent/US6791486B2/en not_active Expired - Lifetime
- 2002-02-21 ES ES02704870T patent/ES2249555T3/es not_active Expired - Lifetime
- 2002-02-21 AT AT04012193T patent/ATE363742T1/de not_active IP Right Cessation
- 2002-02-21 JP JP2002568458A patent/JP2004521544A/ja not_active Ceased
- 2002-02-21 DE DE60207529T patent/DE60207529T2/de not_active Expired - Lifetime
- 2002-02-21 AT AT02704870T patent/ATE311019T1/de not_active IP Right Cessation
- 2002-02-21 EP EP02704870A patent/EP1362386B1/fr not_active Expired - Lifetime
- 2002-02-21 IL IL152430A patent/IL152430A/en active IP Right Grant
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB746300A (en) * | 1954-02-12 | 1956-03-14 | Anthony Edgar Porter | Improvements in radar reflectors |
| GB812376A (en) * | 1956-01-03 | 1959-04-22 | Anthony Edgar Porter | Improvements in radar reflectors |
| US3296617A (en) * | 1963-01-23 | 1967-01-03 | Francis M Rogallo | Target kite |
| US3618111A (en) * | 1967-04-28 | 1971-11-02 | Gen Dynamics Corp | Expandable truss paraboloidal antenna |
| WO1993021367A1 (fr) * | 1992-04-21 | 1993-10-28 | Protecma | Structure metallique pour des articles moules |
| EP0807991A1 (fr) * | 1996-05-15 | 1997-11-19 | Trw Inc. | Réflecteur téléscopique déployable pour antenne et procédé de déploiement du réflecteur |
| EP1052725A1 (fr) * | 1999-05-10 | 2000-11-15 | Aerospatiale Matra Lanceurs Strategiques et Spatiaux | Surface réfléchissant les ondes électromagnétiques et procédé pour sa réalisation |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1458052B1 (fr) | 2007-05-30 |
| WO2002069441A1 (fr) | 2002-09-06 |
| DE60220440D1 (de) | 2007-07-12 |
| IL152430A (en) | 2007-10-31 |
| US20030164788A1 (en) | 2003-09-04 |
| DE60220440T2 (de) | 2008-05-21 |
| ES2249555T3 (es) | 2006-04-01 |
| ATE311019T1 (de) | 2005-12-15 |
| DE60207529D1 (de) | 2005-12-29 |
| DE60207529T2 (de) | 2006-08-10 |
| EP1362386A1 (fr) | 2003-11-19 |
| DK1458052T3 (da) | 2007-09-10 |
| EP1362386B1 (fr) | 2005-11-23 |
| JP2004521544A (ja) | 2004-07-15 |
| ATE363742T1 (de) | 2007-06-15 |
| US6791486B2 (en) | 2004-09-14 |
| IL152430A0 (en) | 2003-05-29 |
| DK1362386T3 (da) | 2006-04-03 |
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