EP0962743B1 - Vorrichtung zum pyrotechnischen Schneiden von nicht metallischen Stücken - Google Patents

Vorrichtung zum pyrotechnischen Schneiden von nicht metallischen Stücken Download PDF

Info

Publication number
EP0962743B1
EP0962743B1 EP99401322A EP99401322A EP0962743B1 EP 0962743 B1 EP0962743 B1 EP 0962743B1 EP 99401322 A EP99401322 A EP 99401322A EP 99401322 A EP99401322 A EP 99401322A EP 0962743 B1 EP0962743 B1 EP 0962743B1
Authority
EP
European Patent Office
Prior art keywords
cutting
cut
parts
spacer
pyrotechnic
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
Application number
EP99401322A
Other languages
English (en)
French (fr)
Other versions
EP0962743A1 (de
Inventor
Cédric Salort
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerospatiale Matra
Original Assignee
Aerospatiale Matra
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aerospatiale Matra filed Critical Aerospatiale Matra
Publication of EP0962743A1 publication Critical patent/EP0962743A1/de
Application granted granted Critical
Publication of EP0962743B1 publication Critical patent/EP0962743B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
    • F42B15/38—Ring-shaped explosive elements for the separation of rocket parts

Definitions

  • the invention relates to a cutting device using a pyrotechnic expansion tube for cut at least one piece, along a cutting line given.
  • Such a device can in particular be used in the aeronautics and space industries, for order in a very short time the separation of two structural elements, while ensuring transmission sometimes significant efforts between these two elements, before cutting is done.
  • tubes are generally used with pyrotechnic expansion.
  • pyrotechnic expansion tube designates a waterproof and deformable metal tube, in which walks a detonating cord.
  • Soft material such as silicone rubber is interposed between the detonating cord and envelope.
  • the envelope Before firing, the envelope has an oblong section, for example shaped like an ellipse or flattened circle.
  • the shock wave which propagates at very high speed the along the tube distorts the envelope and tends to give it a substantially circular section.
  • a cutting device pyrotechnic including an expansion tube pyrotechnic is used to cut pieces metal.
  • it is mounted in a space formed between two metal parts or between two parts of the same metal part.
  • the room (s) to cut are pre-machined, so that present an area of reduced thickness according to each desired cutting line. Expansion of the envelope caused by the firing of the detonating cord translated by cutting the part (s) according to the cutting line corresponding to the machined area.
  • Cutting devices of one or two pieces metallic by means of an expansion tube are described in particular in the documents US-A-3,486,410, US-A-3,453,960, US-A-3,698,281, FR-A-2 598 796 and EP-A-0 273 061.
  • the structural elements used in the aeronautics and space industries are made of more and more frequently in materials not metal.
  • the materials used are often composite materials, i.e. materials formed from long fibers arranged in layers superimposed according to preferential orientations, embedded in a resin matrix.
  • the machining of a zone of less thickness in a non-metallic material, and especially in a composite material, essential to locate and limit the cut produced by the pyrotechnic expansion tube, is not acceptable in a non-metallic material, in particular of the type composite. Indeed, such machining would lead to unacceptably diminish characteristics mechanical parts before cutting, cutting the long fibers which give it these characteristics.
  • the subject of the invention is precisely a pyrotechnic cutting device, allowing cut non-metallic parts directly, and in particular parts made of composite material, by means a pyrotechnic expansion tube, preserving the mechanical properties of these parts before and after their cutting, and limiting the pollution generated during the cut.
  • this result is obtained by means of a cutting device pyrotechnic including an expansion tube pyrotechnic mounted in a space between two parts and delimited by at least one spacer connecting these two pieces, so as to cut at least one of the pieces along at least one cutting line when the tube is used, characterized in that each piece to be cut is made of non-metallic material, a cutting member being interposed between it and the pyrotechnic expansion tube.
  • the cutting member which is interposed between the cutting piece and the pyrotechnic expansion tube behaves like a shear or a punch when the firing of the detonating cord. Cutting clean and well located is thus ensured, without machining of parts. As a result, the mechanical strength of parts before cutting is not called into question. Of more, the sharpness of the cut preserves the integrity of parts after cutting and severely limits the pollution.
  • the device according to the invention allows to significantly lighten the assemblies not metal which must be cut with a pyrotechnic expansion tube.
  • the device according to the invention allows to significantly reduce the shock generated during cutting, compared to that which is generated when cutting parts metal.
  • each cutting member includes an edge cutting adjacent to the spacer and extending along the cutting line.
  • the cutting device behaves then like a simple shear.
  • each cutting member comprises two opposite cutting edges one of which is adjacent to the spacer. These cutting edges are then able to cut a strip in the piece to be cut, according to two substantially parallel cutting lines. In that case, the cutting member behaves like a double shears.
  • each cutting member comprises at least a projecting cutting edge, in contact with the piece to be cut along the cutting line.
  • the organ of cutting then behaves like a punch.
  • Each cutting member can be produced advantageously of a material which is substantially undeformable and completely housed in space in which is mounted the pyrotechnic expansion tube.
  • the cutting member then behaves like a shears or a rigid punch.
  • each cutting member can also be made of a deformable material, linked to the piece to be cut. It then extends away of the spacer.
  • the cutting member behaves like a simple shear or like a punch deformable.
  • a buttress is advantageously fixed on each piece to be cut, at the opposite and in front of the spacer, so an edge of the buttress extends along the line cutting.
  • the buttress then behaves like a anvil on which the piece is supported during the cutting.
  • a holding member made of a material deformable is preferably attached to each part to cut, opposite and in front of the cutting member.
  • the holding member then comprises an edge which extends along the cutting line and extends further away of this edge.
  • the device includes both a cutting member, a buttress and a maintenance
  • these three organs can be realized in the same material as the workpiece and this material is advantageously a composite material formed of long fiber tablecloths embedded in a resin matrix.
  • the assembly is then carried out directly by draping, during the manufacture of the room.
  • the parts and the spacer can be made of the same material not metallic, in monolithic form.
  • the pyrotechnic expansion tube is then integrated into the assembly during the manufacture of the parts.
  • the spacer can be fixed between the parts by fixing means such as bolts passing through them.
  • the other room is a substantially non-deformable support piece, connected to the part to be cut by one or two spacers.
  • the space in which is housed the pyrotechnic expansion tube is delimited by two spacers and a cutting member is placed between the tube and each of the pieces to be cut.
  • the cutting member constitutes a simple shear
  • the second spacer is then fixed between the pieces in a location away from the expansion tube pyrotechnic.
  • each cutting member constitutes a double shears
  • the two spacers are fixed between the parts near this organ.
  • the reference 10 designates a part made of a non-metallic material, as desired cut along a cutting line 12.
  • the material not metal in which the part 10 is formed can be of different natures, without departing from the framework of the invention.
  • a preferred application is for the case where this material is a composite material, formed of long fiber layers embedded in a matrix of resin.
  • such parts can be obtained by draping resin-impregnated fiber sheets thermosetting, then polymerization of the resin.
  • the part 10 to be cut can be of various forms, without departing from the framework of the invention.
  • the part 10 is in the form of a plate of substantially uniform thickness. This plate can be flat, curved, or have any other shape suitable for the intended application.
  • the cutting device according to the invention is generally designated by reference 14.
  • This cutting device comprises in this case a tube 16 with pyrotechnic expansion, a support piece 18 and a spacer 20 (these two last pieces can be separated, or made in one piece, as shown).
  • the pyrotechnic expansion tube 16 is performed in the same way as in the devices applied to the cutting of metal parts. However, it has a reduced dimension adapted the nature of the material constituting the part 10 to cut, so as to generate a shock wave significantly less than in the cutting of metal parts. A description detail of the pyrotechnic expansion tube 16 is not therefore not necessary.
  • the expansion tube 16 pyrotechnic includes a metal casing 22 waterproof and deformable, a detonating cord 24 housed at inside the envelope 22, as well as a material flexible 26 interposed between the detonating cord 24 and the envelope 22.
  • the flexible material 26 has in particular for function to center the detonating cord inside of the envelope. As an example, it can be carried out made of silicone rubber.
  • the envelope 22 Before firing, the envelope 22 has an oblong section, by example in the shape of a flattened circle or oval, like illustrated in Figure 1.
  • the pyrotechnic expansion tube 16 is received in a space 28 formed between the part 10 to be cut and the support piece 18, this space 28 being delimited by a side by the spacer 20. More specifically, the section longer length of the envelope 22 is oriented parallel to the direction defined by part 10 to cut.
  • the support piece 18 and the spacer 20 form a separate part from the part 10 to be cut.
  • This unique piece is fixed on the piece to be cut by fixing means such as bolts (not shown) whose location is illustrated schematically by the dashed line 30.
  • the nature and thickness of the materials constituting the support piece 18 and the spacer 20 are such that these two pieces are practically undeformable during the implementation of the tube 16 to pyrotechnic expansion. This result is obtained either in using non-deformable thickness materials limited, such as metals, either by using relatively soft but stronger materials thickness, such as non-metallic materials, as illustrated in Figure 1. In the latter case, it should be noted that as a variant, the support piece 18 as well as the spacer 20 can be made of a in one piece with piece 10 to be cut. The means of fixing such that the bolts 30 are no longer required.
  • the face of the support piece 18 facing part 10 to be cut constitutes a substantially non-deformable surface, generally parallel to part 10 and on which the tube 16 with pyrotechnic expansion, when fire of the detonating cord 24. Consequently, the expansion of the envelope 22 is carried out entirely in the direction of part 10 to be cut.
  • the face of the spacer 20 facing space 28 is aligned with the line of cutout 12 of part 10.
  • a cutout 32 is also placed in space 28, between the pyrotechnic expansion tube 16 and the part 10 to cut.
  • This cutting member 32 is presented under the shape of a plate which matches the shape of the part 10 in its part adjacent to the spacer 20.
  • the cutting member 32 is substantially non-deformable. AT this effect, it is made of a rigid material such than a metal.
  • the cumulative thickness of the tube 16 pyrotechnic expansion and cutting member 32 is substantially equal, apart from the mounting clearance, to the width of the space 28, between the piece 10 to be cut and the support piece 18.
  • An element (not shown) can be attached to the support piece 18, or formed directly on this piece in order to close the space 28 opposite spacer 20, if necessary to prevent the escape of the tube 16 and of the member cutting 32.
  • the cutting member 32 behaves like a simple shears with respect to part 10 to be cut.
  • the cutting member 32 has an edge of cutout 34 adjacent to the spacer 20 and extending along the cutting line 12 of the piece 10.
  • This edge of cutout 34 may have a straight, bevelled shape or other, without departing from the scope of the invention. he defines a sharp edge with the face of the cutout 32 in contact with the part 10, so that a shear effect be obtained along the line of cutout 12, during the implementation of the tube 16 to pyrotechnic expansion.
  • the resulting shock wave causes the expansion of the envelope 22, which tends to take a section substantially circular. Since tube 16 to pyrotechnic expansion is supported on a part 18 substantially undeformable, its expansion occurs essentially in the direction of the part 10 to be cut. It is therefore applied in full to the organ of cutout 32, which transmits it to part 10 by directing and locating the cut precisely along the cutting line 12 defined previously.
  • the cutting member 32 makes it possible to amplify the cutting by retransmitting pyrotechnic energy to the room by its edge 34.
  • the cutting is mainly done by shearing, which limit pollution.
  • such cutting by shear requires pyrotechnic energy relatively weak in the case of a material not metallic and in particular of a composite material.
  • FIG. 2 a variant is shown of the first embodiment of the invention which has just been described with reference to FIG. 1.
  • This variant relates to the case where the pyrotechnic cutting is used to cut simultaneously two pieces 10, substantially parallel to each other, delimiting between them a space 28.
  • the space 28 is closed, opposite to the spacer 20, for example by a second spacer 36.
  • the spacer 36 is fixed to the parts 10 by fixing means such as bolts (not shown), the location of which is illustrated schematically by the dashed line 38 in FIG. 2.
  • the spacer 36 can be done in one piece with both parts 10 or replaced by the direct junction of these two rooms, then joined to each other.
  • space 28 contains both expansion tube 16 pyrotechnic and two cutters 32 interposed between this tube and each of the pieces 10 to be cut.
  • the two cutting members 32 are made in the form of simple shears, designed to cut the two pieces 10 simultaneously according to cutting lines 12 aligned with the face of the spacer 20 facing the space 28.
  • each of the cutting members 32 has an edge of cutout 34 adjacent to the spacer 20 and extending along the cutting line 12 of the part 10 corresponding.
  • the location of the cut along the cut lines 12 is all the more efficient than the parts of parts 10 which are in contact with the cutting members 32 flex easily outward by pivoting around their anchor point diagrammed by the dashed lines 38 on Figure 2.
  • the fixing of the parts 10 on spacer 36 should be as far apart as possible tube 16 and cutting lines 12 provided in the rooms.
  • the cutting members 32 are substantially non-deformable and placed freely in space 28, as in the embodiment described above in se referring to figure 1.
  • FIG 3 there is shown schematically a second embodiment of a pyrotechnic cutting device 14 in accordance with the invention.
  • the Figure 3 illustrates the simplest case where cutting relates to a single room 10. The general arrangement is therefore comparable to that described above with reference to Figure 1, so that a detailed description of the various parts which in this case constitute the cutting device 14 is not necessary.
  • the second form for carrying out the invention illustrated in FIG. 3 essentially differs in the shape of the organ from cutout 32. Indeed, instead of being conceived as a simple shears, this cutting device behaves in this case as a punch. To this end, it presents a projecting cutting edge 34, for example with a cross section V-shaped or pointed, on its face facing the piece 10 to be cut. This projecting edge 34 is in contact with the part 10 by its end, according to the cutting line 12 provided in this part.
  • the cutting member 32 is a member non-deformable, as in the case of FIG. 1.
  • the projecting cutting edge 34 may be more or less distant from the spacer 20, so that the cutting then takes place along a line 12 spaced from the surface of the spacer 20 facing the space 28. As this distance increases, the contribution of the elongation at cutting increases, to the detriment of that of shear. Considering the benefits caused by shearing when cutting a composite material part (energy reduction necessary for cutting and pollution) so we have any interest in placing the projecting cutting edge 34 as close as possible to spacer 20.
  • the two cutting members 32 used to simultaneously cut the two parts 10 in the variant of Figure 2 can be made in accordance with the second form of realization of the invention, that is to say in the form of punches with a projecting cutting edge.
  • the protruding cutting edge must also be as close as possible to spacer 20 and also as far as possible from the spacer 36.
  • FIGS. 4A and 4B a third embodiment of the invention, applied in this case to the cutting of a single piece 10.
  • the layout is essentially comparable to the one that was described previously with reference to the figure 1.
  • the essential difference concerns the organ cutting 32, which behaves here like a shear double.
  • the cutout 32 is a non-deformable member, for example metallic, which is in the form of a plate able to cut piece 10 simultaneously in two cutting lines 12 by its edge 34 adjacent to the spacer 20 and by its opposite and parallel edge 35 at the edge 34.
  • the width of the cutting member 32 enters its edges 34 and 35 is then relatively limited, so that the same shearing effect can be obtained during the expansion of the tube 16 caused by the setting fire of its detonating cord.
  • this may also have reduced stiffness in the region between the two cutting lines 12 if the mechanical characteristics required before the cutout allow it.
  • the setting of the pyrotechnic expansion tube 16 then has for the effect of simultaneously cutting the piece 10 according to the two cutting lines 12, which results in the ejection of a strip 10a from the part 10, delimited between the two cutting lines 12.
  • FIGS 5A and 5B illustrate the application of the third embodiment of the invention to the simultaneous cutting of two pieces 10.
  • the device cutting 14 further has symmetry by with respect to a median plane of the expansion tube 16 pyrotechnic, oriented perpendicular to the two 10 pieces to cut.
  • the spacer 36 is mounted and fixed between the parts 10 nearby edges 35 of the cutting members 32, so that these edges 35 are adjacent to the face of the spacer 36 facing the space 28 and extend along the corresponding cutting lines 12.
  • the implementation of the pyrotechnic expansion tube 16 is then translated by the simultaneous double cutting of each of the parts 10 and by the ejection of a strip 10a cut from them.
  • a first difference lies in the fact that instead of being made of a material substantially non-deformable, the cutting member 32 is produced in a deformable material, preferably identical or very close to the non-metallic material in which is made the part 10 to be cut.
  • the cutting element 32 can be obtained by layering layers additional resin-impregnated fibers thermosetting. The cutting member 32 is then linked to part 10 over its entire surface adjacent to this, during the manufacture of the part.
  • the orientation of the fibers in the cutting member 32 can be substantially different from the fibers in the room 10, to take into account the specific function of the cutting member 32.
  • the fibers placed in the cutting member 32 are advantageously intertwined to ensure the resumption of efforts applied to them when setting work of the tube 10 with pyrotechnic expansion.
  • the fibers placed in part 10 are generally oriented mainly in the direction longitudinal, to ensure the transmission of efforts applied to them mainly in this direction.
  • the cutting member 32 When the cutting member 32 is made in a deformable material, as illustrated in FIG. 6, its cutting edge 34 adjacent to the spacer 20 is practically in contact with it. Otherwise, the member 32 extends over a certain distance in distance from this cutting edge 34.
  • a buttress 40 is fixed on the part 10 to be cut, opposite the spacer 20 and the opposite of it.
  • This buttress 40 is presented in the form of a plate whose edge 42 extends along the cutting line 12 of the part 10.
  • the buttress 40 can be made in one substantially non-deformable material such as metal. However, in the embodiment illustrated on Figure 6, the buttress 40 is made in the same non-metallic material than the one in which is formed the part 10 to be cut. As the organ of cutout 32, it can then be integrated into part 10 during its manufacture, especially when this part is made of composite material.
  • the fixing means (not shown) including the location is illustrated by the dashed line 30 provide effective support of the buttress 40 against the part 10, near the cutting line 12.
  • buttress 40 makes it possible to improve again the location and the precision of the cutting, by acting like an anvil on which is supported by the part 10 to be cut.
  • a holding member 44 is also fixed on the part 10, opposite the cutting member 32 and in front of it.
  • the maintenance organ 44 includes an edge 46 which extends along the line of cutout 12. This edge 46 is practically in contact with the edge 42 of the buttress 40, when the latter exists.
  • the holding member 44 is made in one deformable material, in order to follow the deformation of the part 10 during its cutting ordered by the setting work of tube 16 with pyrotechnic expansion. As the cutting member 32 in the embodiment of Figure 6, the holding member 44 extends over a some distance away from its edge 46.
  • the holding member 44 is advantageously made of a material similar to that in which is formed the part 10 to be cut. In case this last one is made of composite material, the support 44 can therefore be integrated directly into the part during its manufacture, in the same way as the cutting member 32 and the buttress 40 in the exemplary embodiment illustrated in FIG. 6.
  • the maintenance member 44 has the functions of maintain the integrity of the corresponding part of the part 10 and absorb the shock when cutting. he therefore makes it possible to further improve the cleanliness of the cutting.
  • the holding member 44 preserves the integrity of the adjacent part of the part 10 after cutting, by opposing its delamination.
  • Figure 7 there is shown a device of pyrotechnic cutting comparable to that which comes to be described with reference to Figure 6, applied to the simultaneous cutting of two pieces 10.
  • the cutting members 32 thus that the holding members 44 associated with parts 10 to cut are fixed on a spacer 36 by fixing means such as bolts (not shown) whose location is illustrated by mixed lines 38, respecting the same conditions than those previously described in se referring to Figure 2.
  • fixing means such as bolts (not shown) whose location is illustrated by mixed lines 38, respecting the same conditions than those previously described in se referring to Figure 2.
  • the attachment parts 10, cutting members 32 and members holding 44 on the spacer 36 is made in one location 38 relatively distant from the tube 16 and the cutting lines 12 adjacent to the spacer 20. This characteristic facilitates the bending of the pieces 10 by pivoting around the aforementioned fixing means, necessary for good shear cutting of both pieces along the spacer 20.
  • the cutting device pyrotechnic 14 allows, in all the cases, a direct cutting of one or two pieces in non-metallic material, and in particular of material composite, according to one or more sharp cutting lines and well located, in clean conditions generally satisfactory.
  • the cutting lines can be either aligned with the same spacer 20, as shown, either aligned with each of the spacers 20 and 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Food-Manufacturing Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Vibration Dampers (AREA)

Claims (15)

  1. Vorrichtung zum pyrotechnischen Trennen, mit einem pyrotechnischen Expansionsrohr (16), das in einem zwischen zwei Teilen (10,18) angeordneten und von mindestens einem diese beiden Teile verbindenden Zwischenstück (20) begrenzten Raum (28) derart angebracht ist, dass mindestens eines der Teile an mindestens einer Trennlinie (12) getrennt wird, wenn das Rohr betätigt wird, dadurch gekennzeichnet, dass jedes zu trennende Teil (10) aus einem nicht-metallischen Material besteht, wobei ein Trennelement bzw. Trennmittel (32) zwischen dieses und das pyrotechnische Expansionsrohr (16) eingefügt ist.
  2. Vorrichtung nach Anspruch 1, wobei jedes Trennelement (32) einen Trennrand (34), der an das Zwischenstück (20) angrenzt und sich längs der Trennlinie (12) erstreckt, aufweist.
  3. Vorrichtung nach Anspruch 1, wobei jedes Trennelement zwei entgegengesetzte Trennränder (34, 35) aufweist, von denen einer (34) an das Zwischenstück angrenzt, und die ein Band (10a) in dem zu trennenden Teil (10) längs zweier Trennlinien (12) trennen können.
  4. Vorrichtung nach Anspruch 1, wobei jedes Trennelement (32) mindestens eine vorstehende scharfe Kante (34) in Kontakt mit dem längs der Trennlinie zu trennenden Teil (10) (12) aufweist.
  5. Vorrichtung nach einem der vorangehenden Ansprüche, wobei jedes Trennelement (32) aus einem im Wesentlichen unverformbaren Material gefertigt ist und gänzlich im Raum (28) aufgenommen ist.
  6. Vorrichtung nach einem der Ansprüche 2 oder 4, wobei jedes Trennelement (32) aus einem verformbaren Material gefertigt ist, das mit dem zu trennenden Teil (10) verbunden ist und sich über das Zwischenstück (20) hinaus erstreckt.
  7. Vorrichtung nach einem der vorangehenden Ansprüche, wobei ein Gegenstück (40) an jedem zu trennenden Teil (10) entgegengesetzt zu und gegenüber dem Zwischenstück (20) so befestigt ist, dass ein Rand (42) des Gegenstücks sich längs der Trennlinie (12) erstreckt.
  8. Vorrichtung nach einem der vorangehenden Ansprüche, wobei ein Halteelement (44), das aus einem verformbaren Material gefertigt ist, an jedem zu trennenden Teil (10) entgegengesetzt zu und gegenüber dem Trennelement (32) befestigt ist, wobei das Halteelement (44) einen Rand (46) aufweist, der sich längs der Trennlinie (12) und über diesen Rand hinaus erstreckt.
  9. Vorrichtung nach den Ansprüchen 6, 7 und 8 in Kombination, wobei das Schneid- bzw. Trennelement (32), das Gegenstück (40) und das Halteelement (44) aus dem gleichen Material gefertigt sind wie das zu trennende Teil (10), und dieses Material ein aus in einer Harzmatrix eingebetteten Schichten langer Fasern gebildetes Verbundmaterial ist.
  10. Vorrichtung nach einem der vorangehenden Ansprüche, wobei die Teile (10) und das Zwischenstück (20) aus dem gleichen nicht-metallischen Material in monolithischer Form gefertigt sind.
  11. Vorrichtung nach einem der Ansprüche 1 bis 9, wobei das Zwischenstück (20) zwischen den Teilen (10,18) durch diese durchsetzende Befestigungsmittel (30) befestigt ist.
  12. Vorrichtung nach einem der Ansprüche 1 bis 11, wobei ein einziges (10) der zwei Teile zu trennen ist und das andere Teil ein im Wesentlichen nicht-verformbares Stützteil (18) ist.
  13. Vorrichtung nach einem der Ansprüche 1 bis 11, wobei die beiden Teile (10) zu trennen sind und der Raum (28), der durch zwei Zwischenstücke (20, 36) und ein Trennelement (32), das zwischen dem pyrotechnische Expansionsrohr (16) und jedem der Teile (10) angeordnet ist, begrenzt ist.
  14. Vorrichtung nach den Ansprüchen 2 und 13 in Kombination, wobei das zweite Zwischenstück (36) zwischen den Teilen (10) an einer von dem pyrotechnischen Expansionsrohr (16) entfernten Stelle befestigt ist.
  15. Vorrichtung nach den Ansprüchen 3 und 13 in Kombination, wobei die beiden Zwischenstücke (20, 36) zwischen den Teilen (10) in der Nähe jedes der Trennelemente (32) befestigt sind.
EP99401322A 1998-06-02 1999-06-01 Vorrichtung zum pyrotechnischen Schneiden von nicht metallischen Stücken Expired - Lifetime EP0962743B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9806899 1998-06-02
FR9806899A FR2779224B1 (fr) 1998-06-02 1998-06-02 Dispositif de decoupe pyrotechnique de pieces non metalliques

Publications (2)

Publication Number Publication Date
EP0962743A1 EP0962743A1 (de) 1999-12-08
EP0962743B1 true EP0962743B1 (de) 2002-12-11

Family

ID=9526930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99401322A Expired - Lifetime EP0962743B1 (de) 1998-06-02 1999-06-01 Vorrichtung zum pyrotechnischen Schneiden von nicht metallischen Stücken

Country Status (5)

Country Link
US (1) US6286430B1 (de)
EP (1) EP0962743B1 (de)
DE (1) DE69904395T2 (de)
ES (1) ES2188110T3 (de)
FR (1) FR2779224B1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0005765D0 (en) * 2000-03-11 2000-05-03 Mcneill Ralph Insitu apparatus and method for breaking glass
US6499406B2 (en) 2000-12-30 2002-12-31 Dong Soo Shim Blasting apparatus for forming horizontal underground cavities and blasting method using the same
FR2838818B1 (fr) 2002-04-19 2006-12-08 Eads Launch Vehicules Dispositif de liaison provisoire et de separation pyrotechnique de deux elements, sans rupture
FR2839550B1 (fr) 2002-05-07 2004-07-30 Eads Launch Vehicles Dispositif de liaison provisoire et de separation pyrotechnique de deux elements, a organe mobile
US20110167994A1 (en) * 2008-09-30 2011-07-14 Au-Yeung Honmartin K Pyrotechnic egress system
FR2946101B1 (fr) 2009-05-29 2011-07-01 Astrium Sas Dispositif de liaison provisoire et de separation pyrotechnique de deux ensembles
US8230770B1 (en) * 2009-09-22 2012-07-31 The United States Of America As Represented By The Secretary Of The Navy Apparatus to energetically remove a ballistic tolerant window
US8607705B2 (en) * 2010-12-06 2013-12-17 Systima Technologies Inc. Low shock rocket body separation
RU2475692C2 (ru) * 2011-03-03 2013-02-20 Федеральное государственное унитарное предприятие "Научно-производственное объединение им. С.А. Лавочкина" Пиромеханическая система отделения комбинированного типа
FR2973869B1 (fr) * 2011-04-06 2013-05-03 Astrium Sas Piece a rupture pyrotechnique detonante
DE102013100825B3 (de) * 2013-01-28 2013-12-19 Benteler Automobiltechnik Gmbh Pyro-mechanischer Aktuator und Verbindungsvorrichtung mit einem solchen Aktuator
US10739112B1 (en) * 2013-08-15 2020-08-11 The United States Of America As Represented By The Secretary Of The Navy Impulse dampening system for emergency egress
CN106403734A (zh) * 2016-06-17 2017-02-15 哈尔滨工程大学 一种低冲击线型爆炸解锁装置
US10801822B2 (en) * 2018-06-29 2020-10-13 Goodrich Corporation Variable stand-off assembly
US11319260B2 (en) * 2019-11-05 2022-05-03 Goodrich Corporation Detonating cord stress concentrators

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453960A (en) 1967-12-11 1969-07-08 Gen Dynamics Corp Noncontaminating linear explosive separation
US3486410A (en) 1968-04-18 1969-12-30 Mc Donnell Douglas Corp Explosive severance means
US3698281A (en) 1970-02-27 1972-10-17 Lockheed Aircraft Corp Explosive system
GB1383511A (en) * 1971-01-15 1974-02-12 Hawker Siddeley Aviation Ltd Aircraft canopy emergency
US4090447A (en) * 1975-02-26 1978-05-23 Johnsen Oscar A Directional blasting tubes and method of use
FR2445799A1 (fr) * 1979-01-04 1980-08-01 Aerospatiale Glace munie d'un dispositif de decoupage pyrotechnique
US4314500A (en) * 1980-01-25 1982-02-09 The United States Of America As Represented By The Secretary Of The Air Force Instantaneous opening positive lock mechanism
FR2522612A1 (fr) * 1982-03-04 1983-09-09 Aerospatiale Dispositif de maintien d'un cordeau detonant contre un element transparent de verriere d'avion
US4685376A (en) 1985-06-24 1987-08-11 Mcdonnell Douglas Corporation Separation system
FR2598769B1 (fr) 1986-05-13 1988-08-05 Jade Sa Garniture d'etancheite hydraulique ou pneumatique
FR2598796B1 (fr) 1986-05-16 1990-04-20 Aerospatiale Dispositif de separation pyrotechnique de deux elements
CH670656A5 (de) * 1987-04-14 1989-06-30 Fischer Ag Georg
US5104067A (en) * 1990-05-14 1992-04-14 Mcdonnell Douglas Corporation Detonating cord powered canopy breakers
SE500136C2 (sv) * 1992-03-11 1994-04-25 Exploweld Ab Anordning för inklädnad av rör medelst explosionsformning

Also Published As

Publication number Publication date
FR2779224A1 (fr) 1999-12-03
DE69904395T2 (de) 2003-10-30
US6286430B1 (en) 2001-09-11
ES2188110T3 (es) 2003-06-16
EP0962743A1 (de) 1999-12-08
DE69904395D1 (de) 2003-01-23
FR2779224B1 (fr) 2000-08-11

Similar Documents

Publication Publication Date Title
EP0962743B1 (de) Vorrichtung zum pyrotechnischen Schneiden von nicht metallischen Stücken
EP0962741B1 (de) Vorrichtung zur provisorischen Verbindung und zum pyrotechnischen Abtrennen von zwei nichtmetallischen Einheiten
EP1950392B1 (de) Vorrichtung zum Zusammenbau von zwei Einheiten, beispielsweise für den Stator eines Turbotriebwerks
EP1234984B1 (de) Vorrichtung zum Verbinden einer Kompositplatte mit einer Trägerkonstruktion
EP0011026A1 (de) Vorrichtung zum Verbinden von Wabenzellenplatten, insbesondere verwendet beim Flugzeugbau
EP0962742B1 (de) Vorrichtung zum Schneiden von nicht-metallischen Stücken mittels eines pyrotechnischen Ausdehnungsrohres
EP1355120B1 (de) Vorrichtung zur provisorischen Verbindung und zum pyrotechnischen Trennen von zwei Elementen, ohne Bruch
EP2476924B1 (de) Welle zur Übertragung von Drehbewegungen und/oder Drehkräften und Herstellungsverfahren derselben.
FR3019509A1 (de)
EP1361411B1 (de) Vorrichtung mit bewegbarem Element, zur provisorischen Verbindung und zum pyrotechnischen Abtrennen von zwei Einheiten
EP0090773A1 (de) Schneideglied für Sägekette
FR2818239A1 (fr) Structure d'assemblage sur un vehicule spatial
FR2909153A1 (fr) Dispositif pour la fixation d'un element
EP3319764B1 (de) Manuelles schneidwerkzeug
EP0169103B1 (de) Zylindrischer Mast, Elemente mit anderen Elementen zusammenstossbar, um einen Mast zu ergeben
FR3033610A1 (fr) Cardan a structure simplifiee
FR3049319A1 (fr) Cardan a structure simplifiee
EP3844405B1 (de) Vorrichtung zum verbinden von rohrförmigen elementen
EP2006555A1 (de) Welle zur Übertragung von Bewegungen und/oder Drehkräften
FR2832668A1 (fr) Procede de fabrication d'un ensemble en materiau composite et voilure et element stabilisateur d'aeronef obtenus par ce procede
FR3049320A1 (fr) Cardan a structure simplifiee
CA2957358A1 (fr) Assemblage de type liaison pivot
FR3079074A1 (fr) Systeme d'assemblage sans vis de deux portions de guide d'onde creux
FR2705301A1 (fr) Articulation de palonnier pour dispositif d'essuie-glace.
FR2576983A1 (fr) Procede d'assemblage d'elements tubulaires places bout a bout par engagement et elements ainsi assembles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES GB IT LI SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AEROSPATIALE MATRA

17P Request for examination filed

Effective date: 20000522

AKX Designation fees paid

Free format text: CH DE ES GB IT LI SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20020307

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SALORT, CEDRIC

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES GB IT LI SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69904395

Country of ref document: DE

Date of ref document: 20030123

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030325

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2188110

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030912

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040602

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20040604

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050602

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20110713

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110629

Year of fee payment: 13

Ref country code: ES

Payment date: 20110719

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110630

Year of fee payment: 13

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120601

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69904395

Country of ref document: DE

Effective date: 20130101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120630

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130101

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120630

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20131018

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120602