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EP0277275A1 - Signalling means, especially a signal rocket or signal cartridge - Google Patents

Signalling means, especially a signal rocket or signal cartridge Download PDF

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Publication number
EP0277275A1
EP0277275A1 EP19870113245 EP87113245A EP0277275A1 EP 0277275 A1 EP0277275 A1 EP 0277275A1 EP 19870113245 EP19870113245 EP 19870113245 EP 87113245 A EP87113245 A EP 87113245A EP 0277275 A1 EP0277275 A1 EP 0277275A1
Authority
EP
European Patent Office
Prior art keywords
outer tube
signal
collecting disc
axis
signaling device
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
Application number
EP19870113245
Other languages
German (de)
French (fr)
Other versions
EP0277275B1 (en
Inventor
Horst Dipl.-Ing. Heydkamp
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.)
Comet GmbH Pyrotechnik Apparatebau
Original Assignee
Comet GmbH Pyrotechnik Apparatebau
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.)
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Publication date
Application filed by Comet GmbH Pyrotechnik Apparatebau filed Critical Comet GmbH Pyrotechnik Apparatebau
Publication of EP0277275A1 publication Critical patent/EP0277275A1/en
Application granted granted Critical
Publication of EP0277275B1 publication Critical patent/EP0277275B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/02—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes in cartridge form, i.e. shell, propellant and primer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/12—Cartridge top closures, i.e. for the missile side

Definitions

  • the invention relates to a signaling means, in particular a signaling rocket or cartridge, according to the preamble of claim 1.
  • Pyrotechnic signaling devices are used above all in aviation and seafaring to draw the attention of third parties to acute emergencies and impending dangerous situations.
  • Signal rockets which are usually fired by hand, and signal cartridges, which can be fired from a suitable signal gun, are used for this purpose.
  • Such signaling devices are also used as pyrotechnic lighting devices used for airport apron lighting or for lighting during search and rescue operations at night.
  • the signal is fired from an outer tube or a cartridge case, in which the signal is housed. After ignition, the signal emerges from the outer tube (cartridge case) through an opening in the outer tube (cartridge case) provided with a releasable closure, which is thereby removed from the signal.
  • the invention relates to a practical design of the closure at the upper end of the outer tube, which essentially has to meet two requirements.
  • the closure is intended to withstand mechanical stresses on the signal rockets or cartridges, in particular a fall on the closed opening, and without the ignited signal being able to slide out of the outer tube or the cartridge case.
  • the signal should be able to emerge from the upper opening of the outer tube with as little resistance as possible, that is to say the closure should be easily detachable or detachable.
  • the invention has for its object to provide a signaling device that has a closure, the mechanical bean withstands stresses sufficiently and without any appreciable increase in the setback.
  • the invention has the characterizing features of claim 1. Accordingly, the closure according to the invention is composed of at least one (usual) cover plate, which can be inserted into the outer tube with a low pretension, and the additional collecting plate. The latter ensures that the signal is adequately resistant to mechanical (falling) stresses in the outer tube.
  • the collecting disk is bent towards the signal. This avoids unintentional loosening under mechanical loads, in particular with falling loads, when the signal is supported on the collecting disk, since the pressure of the signal is exerted on the central area of the collecting disk that is bent towards it, thereby spreading apart the outer edges of the collecting disk. In this way, the collecting disk wedges with increasing mechanical load on the inner jacket of the outer tube.
  • the collecting disk is deformed in the opposite direction, in that the gas pressure which builds up inside the outer tube, also above the signal, acts on the inclined surfaces of the collecting disk and thereby bends the outer edges thereof in a detaching sense .
  • the collecting disk is expediently only bent about an axis, namely preferably about its central axis. This makes it easy to bend and changes the shape and dimensions of its outer circumference with the slightest bends.
  • a particularly advantageous embodiment of the collecting disc results from a central folding of the latter, so that it - viewed from the side on the folding line - is given a roof-like shape.
  • the central crease line then forms a vertex between two (equally large) flat partial surfaces that run at an obtuse angle to one another.
  • the signal is supported linearly on the apex, with the aim of increasing the angle between the two partial surfaces. This increases the projected area of the collecting plate.
  • the rocket or cartridge is fired, however, when the gas pressure acts on the opposite partial surfaces, the included angle between the partial surfaces is reduced as the projected area of the collecting disk decreases.
  • Such a collecting disc is also particularly easy to manufacture.
  • the collecting disks can alternatively also be curved in one direction but also be rotationally symmetrical (conical).
  • the collecting disk has a corresponding number of radial slots or folds to ensure easy deformability.
  • the collecting disk is formed from an approximately elliptical or oval blank.
  • the two axes (small axis or large axis) of the blank are dimensioned such that that the small axis coincides with the central crease line or the apex and is preferably slightly smaller than the inside diameter of the cylindrical outer tube or the same size.
  • the large axis is larger than the inner diameter of the outer tube.
  • the length of the large axis of the blank is dimensioned such that when the collecting disc is fully bent, the length of the large axis projected into one plane is equal to the inner diameter of the outer tube or slightly larger.
  • the collecting disk can be inserted easily and, if necessary, with a slight elastic pretension into the open outer tube.
  • This pre-tension practically arises automatically, because when the collecting disc is inserted with the apex in front, the partial surfaces are inevitably bent together.
  • the circumferential lines of the cover plate seated in the outer tube then have a circular shape in a flat position.
  • the cover plate is expediently made of resilient material. As a result, it can be deformed sufficiently elastically, as a result of which the pretensioning force is retained in the collecting disk even after the signal medium has been stored for a prolonged period, and plastic deformations when the same is inserted into the outer tube are practically completely avoided.
  • the parachute signal rocket 10 has an elongated, cylindrical outer casing 11 with opposing openings 12 and 13, that is to say open end faces.
  • the lower opening 12 is closed by a bottom 14 which is firmly connected to the outer casing 11 and in which a manually operated trigger 15 for the ignition is accommodated.
  • the upper opening 13 of the outer casing 11 is closed by a closure cap 20, a Sealing disk 21 designed according to the invention and an outer cardboard disk 22 are sealed.
  • the propellant charge 17 and the star set 18 are also associated with firings, delay sets and intermediate sets designed in a manner known per se, which are not explained in more detail here.
  • the closure cap 20 is loosely placed on the head of the star set 18 directed towards the upper opening 13, namely the parachute 19.
  • the outer cardboard disk 22, which is used only for moisture protection, is easily detachably connected to the upper edge of the outer casing 11, preferably by a moisture-impermeable one Sealing foil made of aluminum, which is not shown in the figures. If necessary, the outer cardboard disc can be omitted, that is to say the upper end of the outer casing 11 can only be closed by a sealing film.
  • the collecting disk 21 shown in the figures is - as can be seen from FIG. 2 - bent in the middle in a V-shape.
  • the collecting disk 21 therefore has two approximately equal partial areas 23 and 24 which have a central apex 25.
  • the latter is formed by a folding line running across the entire width of the collecting disk 21.
  • the two partial surfaces 23 and 24 thus form an acute angle of approximately 160 °.
  • the arrangement of the collecting disk 21 in the outer jacket 11 is such that it is inserted at a slight distance from the upper opening 13 in the outer jacket 11, with the apex 25 directed towards the star set 18. This is supported here by the loose on the folding screen 19 of the star set 18 put on the closure cap 20 to hold the star set 18 and the parachute 19 free of play.
  • the retaining disk 21 is held frictionally in the outer jacket 11 by elastic prestressing, in that the two partial surfaces are resiliently bent together when inserted into the outer jacket 11. As a result, the edge regions of the partial surfaces 23 and 24 lying on opposite sides of the apex 25 are supported with tension on the inner lateral surface of the outer tube 11.
  • the dimensions of the catch plate 21 for the closure of the parachute missile 10 are as follows: Thickness 0.2 mm Small axis length 54: 40 mm Long axis length 53: 42 mm.
  • parachute signal cartridge 40 Apart from smaller dimensions and a different ignition mechanism, this has a structure which is in principle comparable to the parachute signal rocket 10 described above.
  • the parachute signal cartridge also has an outer tube 41 which is designed in the manner of a cartridge sleeve, namely the lower opening 42 is closed by a one-piece cartridge base 43.
  • the latter contains a firing cap 44 for activating a rocket charge 45.
  • a propellant charge 46 is also accommodated above the rocket discharge charge 45, and a signal formed as a star set 47 with a parachute 48 arranged above it.
  • the covering of the upper opening 49 takes place here in an analogous manner to the parachute signaling rocket 10, namely by a closure cap 50 loosely placed on the parachute 48, a collecting disc 51 arranged above it in the embodiment according to the invention and finally a cardboard disc 52.
  • the cardboard disc 52 can optionally be used to seal off moisture be glued to the outer tube 41.
  • the arrangement and design of the collecting disk 51 of the parachute signal cartridge 40 takes place in an analogous manner to the parachute signal rocket 10.
  • the blank has an approximately elliptical cross section with a large axis 53 and a small axis 54.
  • the small axis 54 which is produced when the collecting disk 21 or 51 is finished coinciding with the apex 25 is slightly smaller than the inside diameter of the outer tube 11 and 41 formed.
  • the somewhat longer large axis 53 is dimensioned such that when the collecting disc 21 or 55 is fully bent, an (imaginary) connecting line between the edges of the collecting disc 21 or 51 lying on the major axis 53 is slightly larger than the inside diameter of the collecting disc 21 or 51 is.
  • this excess is compensated for in that the partial surfaces 23 and 24 are pressed together in the elastic region so that they enclose a smaller acute angle between them.
  • the eccentricity e of the starting point for the radius R lying on the large axis 53 is selected accordingly.
  • the dimension for the radius R corresponds approximately to the inner radius of the outer tube 11 or 41.
  • the lateral edge regions of the cut between the radii R, ie the dimension e of the eccentricity on both sides of the small axis 54, can - as shown - also be rounded, but also be straight.
  • a pyrotechnic signaling device with other signals for example only one or more stars (all without a parachute) or radar reflector rockets or cartridges with a signal made of reflective metal particles (strips), and pyrotechnic lighting means can also be provided with a closure having the catch disk 21 or 51 according to the invention be.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Catching Or Destruction (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Power Steering Mechanism (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

1. Signalling means, especially a signal rocket or signal cartridge. 2.1. Signalling devices of the type under consideration here are to be closed, at least at the (upper) orifice (13) of the outer tube (11), in such a way that the closure on the one hand can sufficiently withstand mechanical stresses and on the other hand can be released as recoillessly as possible during ignition. Known signalling means of this type have the disadvantage that the release of the cover entails an appreciable recoil of the outer tube (11). This will be prevented in the signalling means according to the invention. 2.2. The closure according to the invention has a bent cover plate (11) which is pushed, with the bend directed inwards, into the (upper) orifice (13) of the outer tube (11). During the ignition of the signalling means, the gas pressure building up in the outer casing (11) raises the outwardly directed edges of the cover plate (21), with the latter bending, with the result that these can easily be pushed out of the outer casing (11). This virtually completely prevents a recoil in a simple, but effective way. 2.3. The invention is especially suitable for parachute signal rockets (11), but also for rockets or cartridges with other signalling compositions and for pyrotechnic products from which comparable requirements are demanded. <IMAGE>

Description

Die Erfindung betrifft ein Signalmittel, insbesondere eine Signalrakete oder -patrone, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a signaling means, in particular a signaling rocket or cartridge, according to the preamble of claim 1.

Pyrotechnische Signalmittel dienen vor allem in der Luft- und Seefahrt dazu, auf akute Notfälle und sich an­bahnende Gefahrensituationen Dritte aufmerksam zu machen. Hierzu werden zum einen Signalraketen, die üb­licherweise aus der Hand abgefeuert werden, und zum anderen Signalpatronen, welche aus einer geeigneten Sig­nalpistole abfeuerbar sind, verwendet. Derartige Signal­mittel werden auch als pyrotechnische Beleuchtungsmittel zur Flughafen-Vorfeldbeleuchtung bzw. zur Beleuchtung bei Such- und Rettungsaktionen in der Nacht verwendet.Pyrotechnic signaling devices are used above all in aviation and seafaring to draw the attention of third parties to acute emergencies and impending dangerous situations. Signal rockets, which are usually fired by hand, and signal cartridges, which can be fired from a suitable signal gun, are used for this purpose. Such signaling devices are also used as pyrotechnic lighting devices used for airport apron lighting or for lighting during search and rescue operations at night.

Das Abfeuern des Signals erfolgt aus einem Außenrohr bzw. einer Patronenhülse heraus, worin das Signal unter­gebracht ist. Das Signal tritt nach dem Zünden aus dem Außenrohr (Patronenhülse) heraus, und zwar durch eine mit einem lösbaren Verschluß versehene Öffnung des Außen­rohrs (Patronenhülse), der dabei vom Signal entfernt wird.The signal is fired from an outer tube or a cartridge case, in which the signal is housed. After ignition, the signal emerges from the outer tube (cartridge case) through an opening in the outer tube (cartridge case) provided with a releasable closure, which is thereby removed from the signal.

Bei der Erfindung geht es um eine praxisgerechte Ausbil­dung des Verschlusses am oberen Ende des Außenrohres, der im wesentlichen zwei Forderungen gerecht werden muß. Zum einen soll der Verschluß mechanischen Beanspruchun­gen der Signalraketen bzw. -patronen, insbesondere einem Fall auf die verschlossene Öffnung standhalten, und zwar ohne daß hierdurch bereits das ungezündete Signal aus dem Außenrohr bzw. der Patronenhülse herausrutschen kann. Zum anderen soll nach dem Zünden der Rakete bzw. der Patrone das Signal mit möglichst geringem Widerstand aus der oberen Öffnung des Außenrohres heraustreten können, also der Verschluß leicht lösbar bzw. ab­sprengbar sein.The invention relates to a practical design of the closure at the upper end of the outer tube, which essentially has to meet two requirements. On the one hand, the closure is intended to withstand mechanical stresses on the signal rockets or cartridges, in particular a fall on the closed opening, and without the ignited signal being able to slide out of the outer tube or the cartridge case. On the other hand, after the rocket or the cartridge have been ignited, the signal should be able to emerge from the upper opening of the outer tube with as little resistance as possible, that is to say the closure should be easily detachable or detachable.

Bei bekannten Signalmitteln der hier angesprochenen Art erfolgt ein Verschluß der oberen offenen Öffnung des Außenrohrs durch eine oder mehrere Abdeckscheiben meist aus Pappe. Zur Verhinderung eines Lösens derselben durch mechanische Beanspruchungen müssen diese relativ fest­sitzend in das Außenrohr eingedrückt und mit demselben verklebt sein. Diese Ausbildung entspricht nicht den dem Signalmittel gestellten Anforderungen in mechanischer Hinsicht nämlich einem Falltest.In known signaling devices of the type mentioned here, the upper open opening of the outer tube is closed by one or more cover plates, usually made of cardboard. In order to prevent them from being released by mechanical stresses, they must be pressed into the outer tube relatively firmly and glued to the same. This training does not meet the requirements placed on the signaling means in mechanical terms, namely a drop test.

Ausgehend von diesem Stand der Technik liegt der Erfin­dung die Aufgabe zugrunde, ein Signalmittel zu schaffen, das einen Verschluß aufweist, der mechanischen Bean­ spruchungen ausreichend standhält und zwar ohne eine nennenswerte Erhöhung des Rückschlages.Based on this prior art, the invention has for its object to provide a signaling device that has a closure, the mechanical bean withstands stresses sufficiently and without any appreciable increase in the setback.

Zur Lösung dieser Aufgabe weist die Erfindung die kenn­zeichnenden Merkmale des Anspruchs 1 auf. Demnach setzt sich der erfindungsgemäße Verschluß aus mindestens einer (üblichen) Abdeckscheibe, die mit geringer Vorspannung in das Außenrohr eingesetzt sein kann und der zusätz­lichen Auffangscheibe zusammen. Letztere sichert einen ausreichenden mechanischen (Fall-)Beanspruchungen stand­haltenden Sitz des Signals im Außenrohr.To achieve this object, the invention has the characterizing features of claim 1. Accordingly, the closure according to the invention is composed of at least one (usual) cover plate, which can be inserted into the outer tube with a low pretension, and the additional collecting plate. The latter ensures that the signal is adequately resistant to mechanical (falling) stresses in the outer tube.

Nach einem weiteren Vorschlag der Erfindung ist die Auf­fangscheibe zum Signal hingebogen. Dadurch wird bei mechanischen Belastungen, insbesondere bei Fallbe­lastungen, wenn das Signal sich auf der Auffangscheibe abstützt, ein unbeabsichtigtes Lösen derselben vermie­den, da der Druck des Signales auf den mittleren Bereich der zu ihm hingebogenen Auffangscheibe erfolgt und dabei die äußeren Ränder der Auffangscheibe auseinander­spreizt. Auf diese Weise verkeilt sich die Auffangschei­be mit zunehmender mechanischer Belastung am Innenmantel des Außenrohrs. Beim Zünden der Rakete bzw. Patrone er­folgt ein Verformen der Auffangscheibe in umgekehrter Richtung, indem der sich dann im Inneren des Außenrohrs, und zwar auch oberhalb des Signales aufbauende Gasdruck auf die schräggebogenen Flächen der Auffangscheibe ein­wirkt und dadurch die äußeren Ränder derselben im lösen­den Sinne verbiegt. Es wird so die Vorspannung im Um­fangsbereich bzw. einem Teil des Umfangsbereichs der Ab­deckscheibe gegenüber dem inneren Mantel des Außenrohrs verringert bzw. aufgehoben zum leichten Austoßen der Abdeckscheibe aus dem Außenrohr. Gegenüber den Ver­schlüssen bekannter Signalmittel tritt bei dem erfin­dungsgemäß gestalteten Verschluß daher keine nennens­werte Erhöhung des Rückstoßes auf.According to a further proposal of the invention, the collecting disk is bent towards the signal. This avoids unintentional loosening under mechanical loads, in particular with falling loads, when the signal is supported on the collecting disk, since the pressure of the signal is exerted on the central area of the collecting disk that is bent towards it, thereby spreading apart the outer edges of the collecting disk. In this way, the collecting disk wedges with increasing mechanical load on the inner jacket of the outer tube. When the rocket or cartridge is fired, the collecting disk is deformed in the opposite direction, in that the gas pressure which builds up inside the outer tube, also above the signal, acts on the inclined surfaces of the collecting disk and thereby bends the outer edges thereof in a detaching sense . In this way, the pretension in the peripheral region or a part of the peripheral region of the cover plate with respect to the inner jacket of the outer tube is reduced or eliminated for easy ejection of the cover plate from the outer tube. Compared to the closures of known signaling means, there is therefore no appreciable increase in recoil in the closure designed according to the invention.

Zweckmäßigerweise ist die Auffangscheibe nur um eine Achse gebogen, nämlich vorzugsweise um ihre Mittelachse. Sie läßt sich dadurch leicht verbiegen und verändert bei geringsten Verbiegungen die Gestalt und die Abmessungen ihres Außenumfangs.The collecting disk is expediently only bent about an axis, namely preferably about its central axis. This makes it easy to bend and changes the shape and dimensions of its outer circumference with the slightest bends.

Eine besonders vorteilhafte Ausbildung der Auffangschei­be ergibt sich durch ein mittiges Einknicken derselben, so daß diese - von der Seite her auf die Knicklinie ge­sehen - eine dachförmige Gestalt erhält. Die mittige Knicklinie bildet dann einen Scheitel zwischen zwei (gleich großen) ebenen Teilflächen, die in einem stumpfen Winkel zueinander verlaufen. Bei mechanischen Belastungen des Signalmittels stützt sich das Signal dann linienförmig auf dem Scheitel ab, mit dem Bestre­ben, den Winkel zwischen den beiden Teilflächen zu ver­größern. Die projizierte Fläche der Auffangscheibe wird dadurch größer. Beim Zünden der Rakete bzw. der Patrone hingegen, wenn der Gasdruck auf die gegenüberliegenden Teilflächen wirkt, verringert sich der eingeschlossene Winkel zwischen den Teilflächen bei sich verkleinernder projizierter Fläche der Auffangscheibe. Eine derartige Auffangscheibe läßt sich im übrigen auch besonders leicht herstellen.A particularly advantageous embodiment of the collecting disc results from a central folding of the latter, so that it - viewed from the side on the folding line - is given a roof-like shape. The central crease line then forms a vertex between two (equally large) flat partial surfaces that run at an obtuse angle to one another. In the event of mechanical loads on the signaling means, the signal is supported linearly on the apex, with the aim of increasing the angle between the two partial surfaces. This increases the projected area of the collecting plate. When the rocket or cartridge is fired, however, when the gas pressure acts on the opposite partial surfaces, the included angle between the partial surfaces is reduced as the projected area of the collecting disk decreases. Such a collecting disc is also particularly easy to manufacture.

Anstelle des mittigen Einknickens der Auffangscheiben können diese alternativ auch in eine Richtung bogenför­mig verformt aber auch rotationssymmetrisch (kegelför­mig) gebogen sein. Bei der letztgenannten Alternative verfügt die Auffangscheibe über eine entsprechende An­zahl radialer Schlitze oder Falten zur Gewährleistsung einer leichten Verformbarkeit.Instead of the central collapse of the collecting disks, these can alternatively also be curved in one direction but also be rotationally symmetrical (conical). In the latter alternative, the collecting disk has a corresponding number of radial slots or folds to ensure easy deformability.

Nach einem weiteren Vorschlag der Erfindung wird die Auf­fangscheibe aus einem etwa eliptischen bzw. ovalen Zu­schnitt gebildet. Die beiden Achsen (kleine Achse bzw. große Achse) des Zuschnitts sind dabei derart bemessen, daß die kleine Achse mit der mittigen Knicklinie bzw. dem Scheitel zusammenfällt und vorzugsweise etwas gering­fügiger als der Innendurchmesser des zylindrischen Außen­rohres oder gleichgroß ist. Die große Achse ist hingegen größer als der Innendurchmesser des Außenrohres ausgebil­det. Konkret ist die Länge der großen Achse des Zu­schnitts so bemessen, daß bei fertiggeknickter Auffang­scheibe die in eine Ebene projizierte Länge der großen Achse gleich des Innendurchmessers des Außenrohres bzw. geringfügig größer ist. Auf diese Weise läßt sich die Auffangscheibe leicht und gegebenenfalls mit geringer elastischer Vorspannung in das oben offene Außenrohr ein­schieben. Diese Vorspannung entsteht praktisch von selbst, weil beim Einschieben der Auffangscheibe mit vornliegendem Scheitel die Teilflächen zwangsläufig zu­sammengebogen werden. Die Umfangslinien der im Außenrohr sitzenden Abdeckscheibe verfügen in einer ebenen Posi­tion dann etwa über eine kreisförmige Gestalt.According to a further proposal of the invention, the collecting disk is formed from an approximately elliptical or oval blank. The two axes (small axis or large axis) of the blank are dimensioned such that that the small axis coincides with the central crease line or the apex and is preferably slightly smaller than the inside diameter of the cylindrical outer tube or the same size. The large axis, however, is larger than the inner diameter of the outer tube. Specifically, the length of the large axis of the blank is dimensioned such that when the collecting disc is fully bent, the length of the large axis projected into one plane is equal to the inner diameter of the outer tube or slightly larger. In this way, the collecting disk can be inserted easily and, if necessary, with a slight elastic pretension into the open outer tube. This pre-tension practically arises automatically, because when the collecting disc is inserted with the apex in front, the partial surfaces are inevitably bent together. The circumferential lines of the cover plate seated in the outer tube then have a circular shape in a flat position.

Zweckmäßigerweise ist die Abdeckscheibe aus federndem Material hergestellt. Dadurch läßt sie sich ausreichend elastisch verformen, wodurch auch nach längerer Lage­rungsdauer des Signalmittels die Vorspannkraft in der Auffangscheibe erhalten bleibt und plastische Verformun­gen beim Einsetzen derselben in das Außenrohr praktisch vollständig vermieden werden.The cover plate is expediently made of resilient material. As a result, it can be deformed sufficiently elastically, as a result of which the pretensioning force is retained in the collecting disk even after the signal medium has been stored for a prolonged period, and plastic deformations when the same is inserted into the outer tube are practically completely avoided.

Zwei Ausführungsbeispiele der Erfindung werden anhand der Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 einen Längsschnitt durch eine aufrechte Fall­schirmsignalrakete,
  • Fig. 2 einen um 90° versetzten Längsschnitt durch den oberen Bereich der Fallschirm­signalrakete gemäß Fig. 1,
  • Fig. 3 einen Längsschnitt durch eine aufrechte Fallschirmsignalpatrone in vergrößertem Maßstab,
  • Fig. 4 einen um 90° versetzten Längsschnitt durch den oberen Bereich der Fallschirm­signalpatrone gemäß der Fig. 3, und
  • Fig. 5 den Grundriß eines Zuschnitts zur Herstellung einer Auffangscheibe.
Two embodiments of the invention are explained in more detail with reference to the drawings. Show it:
  • 1 shows a longitudinal section through an upright parachute signal rocket,
  • 2 shows a longitudinal section offset by 90 ° through the upper region of the parachute signal rocket according to FIG. 1,
  • 3 shows a longitudinal section through an upright parachute signal cartridge on an enlarged scale,
  • 4 shows a longitudinal section offset by 90 ° through the upper region of the parachute signal cartridge according to FIG. 3, and
  • Fig. 5 shows the plan of a blank for the production of a collecting disc.

Die Fig. 1 und 2 zeigen eine erfindungsgemäß ver­schlossene Fallschirmsignalrakete 10 üblicher Bauart. Die Fallschirmsignalrakete 10 verfügt über einen läng­lichen, zylindrischen Außenmantel 11 mit gegenüberliegen­den Öffnungen 12 und 13, also offenen Stirnseiten. Die untere Öffnung 12 ist durch einen fest mit dem Außenman­tel 11 verbundenen Boden 14 geschlossen, in dem ein manuell zu betätigender Auslöser 15 für die Zündung untergebracht ist. In Abschußrichtung (Pfeil 16) gesehen befindet sich über dem Boden 14 ein Treibsatz 17 und darüber ein Signal, nämlich ein Sternsatz 18 mit einem darüber gefaltet angeordneten Fallschirm 19. Die obere Öffnung 13 des Außenmantels 11 ist durch eine Ver­schlußkappe 20, eine darüber angeordnete, erfindungsge­mäß ausgebildete Auffangscheibe 21 und eine äußere Papp­scheibe 22 abgedichtet. Im übrigen sind dem Treibsatz 17 und dem Sternsatz 18 noch in an sich bekannter Weise aus­gebildete Anfeuerungen, Verzögerungssätze und Zwischen­sätze zugeordnet die hier nicht näher erläutert werden.1 and 2 show a parachute signal rocket 10 of the conventional type which is locked according to the invention. The parachute signal rocket 10 has an elongated, cylindrical outer casing 11 with opposing openings 12 and 13, that is to say open end faces. The lower opening 12 is closed by a bottom 14 which is firmly connected to the outer casing 11 and in which a manually operated trigger 15 for the ignition is accommodated. Seen in the firing direction (arrow 16) there is a propellant charge 17 above the floor 14 and a signal above it, namely a star set 18 with a parachute 19 folded over it. The upper opening 13 of the outer casing 11 is closed by a closure cap 20, a Sealing disk 21 designed according to the invention and an outer cardboard disk 22 are sealed. For the rest, the propellant charge 17 and the star set 18 are also associated with firings, delay sets and intermediate sets designed in a manner known per se, which are not explained in more detail here.

Im Gegensatz zur Auffangscheibe 21 und zur Pappscheibe 22 ist die Verschlußkappe 20 lose auf den zur oberen Öff­nung 13 gerichteten Kopf des Sternsatzes 18, nämlich dem Fallschirm 19 aufgesetzt. Die lediglich zum Feuchtig­keitsschutz dienende äußere Pappscheibe 22 ist leicht lösbar mit dem oberen Rand des Außenmantels 11 verbun­den, vorzugsweise durch eine feuchtigkeitsundurchlässige Siegelfolie aus Aluminium, die in den Figuren nicht dargestellt ist. Gegebenenfalls kann die äußere Papp­scheibe entfallen, das heißt das obere Ende des Außenman­tels 11 nur durch eine Siegelfolie verschlossen sein.In contrast to the collecting disk 21 and the cardboard disk 22, the closure cap 20 is loosely placed on the head of the star set 18 directed towards the upper opening 13, namely the parachute 19. The outer cardboard disk 22, which is used only for moisture protection, is easily detachably connected to the upper edge of the outer casing 11, preferably by a moisture-impermeable one Sealing foil made of aluminum, which is not shown in the figures. If necessary, the outer cardboard disc can be omitted, that is to say the upper end of the outer casing 11 can only be closed by a sealing film.

Die in den Figuren dargestellte Auffangscheibe 21 ist - wie der Fig. 2 zu entnehmen ist - in der Mitte V-förmig geknickt. Die Auffangscheibe 21 verfügt daher über zwei etwa gleich große Teilflächen 23 und 24, die einen mittigen Scheitel 25 aufweisen. Letzterer ist gebildet durch eine über die gesamte Breite der Auffangscheibe 21 verlaufende Knicklinie. Die beiden Teilflächen 23 und 24 schließen so einen spitzen Winkel von etwa 160° ein.The collecting disk 21 shown in the figures is - as can be seen from FIG. 2 - bent in the middle in a V-shape. The collecting disk 21 therefore has two approximately equal partial areas 23 and 24 which have a central apex 25. The latter is formed by a folding line running across the entire width of the collecting disk 21. The two partial surfaces 23 and 24 thus form an acute angle of approximately 160 °.

Die anordnung der Auffangscheibe 21 im Außenmantel 11 ist derart getroffen, daß diese mit geringfügigem Ab­stand von der oberen Öffnung 13 in den Außenmantel 11 eingeschoben ist, und zwar mit zum Sternsatz 18 gerichte­tem Scheitel 25. Diese stützt sich hier durch auf die lose auf dem Faltschirm 19 des Sternsatzes 18 aufgelegte Verschlußkappe 20 ab zum spielfreien Halten des Stern­satzes 18 und des Fallschirms 19. Gehalten ist die Auf­fangscheibe 21 reibschlüssig im Außenmantel 11 durch elastische Vorspannung, indem die beiden Teilflächen beim Einsetzen in den Außenmantel 11 federnd zusammenge­bogen sind. Dadurch stützen sich die an gegenüberliegen­den Seiten des Scheitels 25 liegenden Randbereiche der Teilflächen 23 und 24 mit Spanung an der Innenmantel­fläche des Außenrohrs 11 ab.The arrangement of the collecting disk 21 in the outer jacket 11 is such that it is inserted at a slight distance from the upper opening 13 in the outer jacket 11, with the apex 25 directed towards the star set 18. This is supported here by the loose on the folding screen 19 of the star set 18 put on the closure cap 20 to hold the star set 18 and the parachute 19 free of play. The retaining disk 21 is held frictionally in the outer jacket 11 by elastic prestressing, in that the two partial surfaces are resiliently bent together when inserted into the outer jacket 11. As a result, the edge regions of the partial surfaces 23 and 24 lying on opposite sides of the apex 25 are supported with tension on the inner lateral surface of the outer tube 11.

Die Abmessungen der Auffangscheibe 21 für den Verschluß der Fallschirmsignalrakete 10 sind wie folgt:
Dicke 0,2 mm
Länge der kleinen Achse 54: 40 mm
Länge der großen Achse 53: 42 mm.The dimensions of the catch plate 21 for the closure of the parachute missile 10 are as follows:
Thickness 0.2 mm
Small axis length 54: 40 mm
Long axis length 53: 42 mm.

Die Fig. 3 und 4 zeigen eine Fallschirmsignalpatrone 40. Abgesehen von geringeren Abmessungen und einem anderem Zündmechanismus verfügt diese über einen prinzipiell mit der vorstehend beschriebenen Fallschirmsignalrakete 10 vergleichbaren Aufbau.3 and 4 show a parachute signal cartridge 40. Apart from smaller dimensions and a different ignition mechanism, this has a structure which is in principle comparable to the parachute signal rocket 10 described above.

Auch die Fallschirmsignalpatrone weist ein Außenrohr 41, das patronenhülsenartig ausgebildet ist, nämlich die untere Öffnung 42 durch einen einstückigen Patronenboden 43 verschlossen ist. Letzterer enthält ein Zündhüdchen 44 zur Aktivierung einer Raketenausstoßladung 45.The parachute signal cartridge also has an outer tube 41 which is designed in the manner of a cartridge sleeve, namely the lower opening 42 is closed by a one-piece cartridge base 43. The latter contains a firing cap 44 for activating a rocket charge 45.

Im übrigen ist im Außenrohr 41 der Fallschirmsignalpa­trone 40 in Abschußrichtung (Pfeil 16) gesehen über der Raketen-Ausstoßladung 45 ebenfalls ein Treibsatz 46 ein als Sternsatz 47 mit einem darüber angeordneten Fall­schirm 48 ausgebildetes Signal untergebracht.Otherwise, in the outer tube 41 of the parachute signal cartridge 40, seen in the firing direction (arrow 16), a propellant charge 46 is also accommodated above the rocket discharge charge 45, and a signal formed as a star set 47 with a parachute 48 arranged above it.

Die Abdeckung der oberen Öffnung 49 erfolgt hier in analoger Weise zur Fallschirmsignalrakete 10, nämlich durch eine lose auf dem Fallschirm 48 aufgelegte Ver­schlußkappe 50, eine darüber angeordnete Auffangscheibe 51 in der erfindungsgemäßen Ausbildung und schließlich einer Pappscheibe 52. Zur Feuchtigkeitsabdichtung kann die Pappscheibe 52 gegebenenfallss mit dem Außenrohr 41 verklebt sein.The covering of the upper opening 49 takes place here in an analogous manner to the parachute signaling rocket 10, namely by a closure cap 50 loosely placed on the parachute 48, a collecting disc 51 arranged above it in the embodiment according to the invention and finally a cardboard disc 52. The cardboard disc 52 can optionally be used to seal off moisture be glued to the outer tube 41.

Die Anordnung und Ausbildung der Auffangscheibe 51 der Fallschirmsignalpatrone 40 erfolgt in analoger Weise zur Fallschirmsignalrakete 10.The arrangement and design of the collecting disk 51 of the parachute signal cartridge 40 takes place in an analogous manner to the parachute signal rocket 10.

Die Fig. 5 zeigt den Grundriß eines Zuschnitts für die Auffangscheiben 21 bzw. 51. Demnach verfügt der Zu­schnitt über einen etwa eliptischen Querschnitt mit einer großen Achse 53 und einer kleinen Achse 54. Die kleine Achse 54, die bei fertiger Auffangscheibe 21 bzw. 51 mit dem Scheitel 25 zusammenfällt, ist geringfügig kleiner als der lichte Innendurchmesser des Außenrohrs 11 bzw. 41 ausgebildet.5 shows the plan view of a blank for the collecting disks 21 and 51, respectively. Accordingly, the blank has an approximately elliptical cross section with a large axis 53 and a small axis 54. The small axis 54, which is produced when the collecting disk 21 or 51 is finished coinciding with the apex 25 is slightly smaller than the inside diameter of the outer tube 11 and 41 formed.

Die etwas längere große Achse 53 hingegen ist derart be­messen, daß bei fertiggeknickter Auffangscheibe 21 bzw. 55 eine (gedachte) Verbindungslinie zwischen den auf der großen Achse 53 liegenden Rändern der Auffgangscheibe 21 bzw. 51 geringfügig größer als der lichte Innendurch­messer der Auffangscheibe 21 bzw. 51 ist. Beim Einschie­ben der Auffangscheibe 21 bzw. 51 in das Außenrohr 11 bzw. 41 wird dieses Übermaß dadurch ausgeglichen, daß die Teilflächen 23 bzw. 24 im elastischen Bereich zu­sammengedrückt werden so daß diese einen geringeren spitzen Winkel zwischen sich einschließen.The somewhat longer large axis 53, on the other hand, is dimensioned such that when the collecting disc 21 or 55 is fully bent, an (imaginary) connecting line between the edges of the collecting disc 21 or 51 lying on the major axis 53 is slightly larger than the inside diameter of the collecting disc 21 or 51 is. When the collecting disk 21 or 51 is inserted into the outer tube 11 or 41, this excess is compensated for in that the partial surfaces 23 and 24 are pressed together in the elastic region so that they enclose a smaller acute angle between them.

Entsprechend ist die Außermittigkeit e des auf der großen Achse 53 liegenden Ansatzpunktes für den Radius R gewählt. Das Maß für den Radius R entspricht etwa dem Innenradius des Außenrohrs 11 bzw. 41. Die seitlichen Randbereiche des Zuschnitts zwischen den Radien R, also das Maß e der Außermittigkeit an beiden Seiten der kleinen Achse 54, kann - wie dargestellt - ebenfalls gerundet, aber auch gerade verlaufend ausgebildet sein.The eccentricity e of the starting point for the radius R lying on the large axis 53 is selected accordingly. The dimension for the radius R corresponds approximately to the inner radius of the outer tube 11 or 41. The lateral edge regions of the cut between the radii R, ie the dimension e of the eccentricity on both sides of the small axis 54, can - as shown - also be rounded, but also be straight.

Mit einem die erfindungsgemäße Auffangscheibe 21 bzw. 51 aufweisenden Verschluß können auch pyrotechnische Signal­mittel mit anderen Signalen, beispielsweise nur einem oder mehreren Sternen (alle ohne Fallschirm) bzw. Radar­reflektorraketen oder -patronen mit einem Signal aus re­flektierenden Metallteilchen (Streifen), sowie pyro­technische Beleuchtungsmittel versehen sein.A pyrotechnic signaling device with other signals, for example only one or more stars (all without a parachute) or radar reflector rockets or cartridges with a signal made of reflective metal particles (strips), and pyrotechnic lighting means can also be provided with a closure having the catch disk 21 or 51 according to the invention be.

Claims (10)

1. Signalmittel, insbesondere Signalreakete oder -patro­ne, mit einem Außenrohr zur Aufnahme mindestens eines Signals und wenigstens einer Verschlußkappe zum lösbaren Verschluß der dem Signalsatz zugeordneten (stirnseiti­gen) Öffnung des Außenrohres, gekennzeich­net durch eine unter der Vershlußkappe (20, 50) im Inneren des Außenrohres (11, 41) angeordnete Auffang­scheibe (21,51).1. Signal means, in particular Signalreakete or cartridge, having an outer tube for receiving at least one signal and at least one cap for releasably closure of the associated with the signal set (front side) Opening of the outer tube, characterized by under the Vershlußkappe (20, 50) inside the Outer tube (11, 41) arranged collecting disc (21, 51). 2. Signalmittel nach Anspruch 1, dadurch gekennzeichnet, daß die Auffangscheibe (21, 51) gebogen ausgebildet ist und mit einwärtsgerichteter Biegung (zum Signal) in die Öffnung (13, 49) des Außenrohres (11, 41) eingesetzt ist.2. Signaling means according to claim 1, characterized in that the collecting disc (21, 51) is curved and is inserted with an inward bend (for the signal) in the opening (13, 49) of the outer tube (11, 41). 3. Signalmittel nach Anspruch 1 und 2, dadurch gekenn­zeichnet, daß die Auffangscheibe (21, 51) um mindestens eine Achse, insbesondere eine einzige Mittelachse, ge­bogen ist.3. Signaling device according to claim 1 and 2, characterized in that the collecting disc (21, 51) is bent about at least one axis, in particular a single central axis. 4. Signalmittel nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Auffangscheibe (21, 51) um eine mittige Knickachse dachförmig abge­knickt ist.4. Signaling device according to one or more of claims 1 to 3, characterized in that the collecting disc (21, 51) is bent roof-shaped around a central articulation axis. 5. Signalmittel nach Anspruch 4, dadurch gekennzeichnet, daß die Knickachse der Auffangscheibe (21, 51) im Schei­tel (25) zwischen zwei, insbesondere etwa gleichgroßen ebenen Teilflächen (24 bzw. 25) liegt, die unter einem stumpfen Winkel von vorzugsweise etwa 160° zueinander verlaufen.5. Signaling device according to claim 4, characterized in that the kink axis of the collecting disc (21, 51) in the apex (25) between two, in particular approximately equal flat partial surfaces (24 and 25), which is at an obtuse angle of preferably about 160 ° run to each other. 6. Signalmittel nach Anspruch 1 sowie einem oder mehre­ren der weiteren Ansprüche, dadurch gekennzeichnet, daß die Auffangscheibe (21, 51) aus einem etwa eliptischen bzw. ovalen Zuschnitt gebildet ist.6. Signaling device according to claim 1 and one or more of the further claims, characterized in that the collecting disc (21, 51) is formed from an approximately elliptical or oval blank. 7. Signalmittel nach Anspruch 5 und 6, dadurch gekenn­zeichnet, daß die kleine Achse (54) des Zuschnitts durch den Scheitel (25) der Auffangscheibe (21, 51) verläuft.7. Signaling means according to claim 5 and 6, characterized in that the small axis (54) of the blank through the apex (25) of the collecting disc (21, 51). 8. Signalmittel nach Anspruch 1 sowie einem oder mehreren der weiteren Ansprüche, dadurch gekennzeichnet, daß die kleine Achse (54) des Zuschnitts gleich groß oder geringfügig kleiner als der Innendurchmesser des Außenrohrs (11, 41) ist.8. Signaling device according to claim 1 and one or more of the further claims, characterized in that the small axis (54) of the blank is the same size or slightly smaller than the inner diameter of the outer tube (11, 41). 9. Signalmittel nach Anspruch 6 sowie einem oder mehre­ren der weiteren Ansprüche, dadurch gekennzeichnet, daß die große Achse (53) des Zuschnitts derart bemessen ist, daß bei fertig geknickter Auffangscheibe (21, 51) eine (gedachte) rechtwinklig durch die Mitte des Scheitels (25) verlaufende Verbindungslinie zwischen den gegenüber­liegenden Rändern der Auffangscheibe (21, 51) gleich bzw. geringfügig größer als der Innendurchmesser des Außenrohres (11, 41) ist.9. Signaling device according to claim 6 and one or more of the further claims, characterized in that the large axis (53) of the blank is dimensioned such that when the collecting disc (21, 51) is bent, an (imaginary) right-angled through the center of the apex (25) running connecting line between the opposite edges of the collecting disk (21, 51) is equal to or slightly larger than the inner diameter of the outer tube (11, 41). 10. Signalmittel nach Anspruch 9, dadurch gekennzeich­net, daß die Auffangscheibe (21, 51) aus einem federnden Material besteht.10. Signaling device according to claim 9, characterized in that the collecting disc (21, 51) consists of a resilient material.
EP19870113245 1987-01-29 1987-09-10 Signalling means, especially a signal rocket or signal cartridge Expired - Lifetime EP0277275B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3702571 1987-01-29
DE3702571 1987-01-29
DE19873707062 DE3707062A1 (en) 1987-01-29 1987-03-05 SIGNALING AGENT, IN PARTICULAR SIGNAL ROCKET OR CARTRIDGE
DE3707062 1987-03-05

Publications (2)

Publication Number Publication Date
EP0277275A1 true EP0277275A1 (en) 1988-08-10
EP0277275B1 EP0277275B1 (en) 1991-12-04

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EP19870113245 Expired - Lifetime EP0277275B1 (en) 1987-01-29 1987-09-10 Signalling means, especially a signal rocket or signal cartridge

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EP (1) EP0277275B1 (en)
JP (1) JPH0656280B2 (en)
DE (2) DE3707062A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE9407053U1 (en) * 1994-04-28 1994-07-28 Comet GmbH Pyrotechnik-Apparatebau, 27574 Bremerhaven Signaling devices, in particular signal rockets
EP3623741A1 (en) 2018-09-12 2020-03-18 Rheinmetall Waffe Munition GmbH Launching unit for a munition

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3043020U (en) * 1997-04-30 1997-11-11 株式会社原田商店 Roof snow stopper
DE102007015248A1 (en) 2007-03-27 2008-10-02 Chemring Defence Germany Gmbh Parachute rocket, in particular parachute signal rocket and / or parachute rocket, and method for producing the same

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DE1147513B (en) * 1961-02-22 1963-04-18 Dynamit Nobel Ag Light and signal cartridges with a plastic stopper
FR2114241A5 (en) * 1970-11-20 1972-06-30 Lacroix Soc E
US3782285A (en) * 1972-09-14 1974-01-01 Us Navy Flare cartridge
US4374494A (en) * 1979-11-09 1983-02-22 Societe E. Lacroix-Tous Artifices Electro-magnetic decoy-launcher ammunition

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GB191517802A (en) * 1915-12-20 1916-12-20 Samuel Cleland Davidson Improvements in or relating to Explosive Shells.
GB924690A (en) * 1960-11-03 1963-05-01 Schermuly Pistol Rocket App Improved pyrotechnic device

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Publication number Priority date Publication date Assignee Title
DE1147513B (en) * 1961-02-22 1963-04-18 Dynamit Nobel Ag Light and signal cartridges with a plastic stopper
FR2114241A5 (en) * 1970-11-20 1972-06-30 Lacroix Soc E
US3782285A (en) * 1972-09-14 1974-01-01 Us Navy Flare cartridge
US4374494A (en) * 1979-11-09 1983-02-22 Societe E. Lacroix-Tous Artifices Electro-magnetic decoy-launcher ammunition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9407053U1 (en) * 1994-04-28 1994-07-28 Comet GmbH Pyrotechnik-Apparatebau, 27574 Bremerhaven Signaling devices, in particular signal rockets
EP0679860A2 (en) * 1994-04-28 1995-11-02 COMET GmbH Pyrotechnik-Apparatebau Signalling device, in particular a signal rocket
EP0679860A3 (en) * 1994-04-28 1997-01-08 Comet Pyrotech Signalling device, in particular a signal rocket.
EP3623741A1 (en) 2018-09-12 2020-03-18 Rheinmetall Waffe Munition GmbH Launching unit for a munition

Also Published As

Publication number Publication date
DE3775032D1 (en) 1992-01-16
EP0277275B1 (en) 1991-12-04
JPS63189799A (en) 1988-08-05
DE3707062A1 (en) 1988-08-25
JPH0656280B2 (en) 1994-07-27

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