EP2405229B1 - Improved ignition system for pyrotechnical objects - Google Patents

Improved ignition system for pyrotechnical objects Download PDF

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Publication number
EP2405229B1
EP2405229B1 EP10008164.5A EP10008164A EP2405229B1 EP 2405229 B1 EP2405229 B1 EP 2405229B1 EP 10008164 A EP10008164 A EP 10008164A EP 2405229 B1 EP2405229 B1 EP 2405229B1
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EP
European Patent Office
Prior art keywords
connector body
constituent
ignition
ignitor
body according
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.)
Not-in-force
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EP10008164.5A
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German (de)
French (fr)
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EP2405229A3 (en
EP2405229A2 (en
EP2405229B8 (en
Inventor
Christoph Jarkow
Frank Wendzik
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JARKOW, CHRISTOPH
WENDZIK, FRANK
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Jarkow Christoph
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Priority to PL10008164T priority Critical patent/PL2405229T3/en
Publication of EP2405229A2 publication Critical patent/EP2405229A2/en
Publication of EP2405229A3 publication Critical patent/EP2405229A3/en
Publication of EP2405229B1 publication Critical patent/EP2405229B1/en
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Publication of EP2405229B8 publication Critical patent/EP2405229B8/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/195—Manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/128—Bridge initiators characterised by the composition of the pyrotechnic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/043—Connectors for detonating cords and ignition tubes, e.g. Nonel tubes

Definitions

  • the invention relates to a connecting body for an ignition system for pyrotechnic articles, which ignites by means of an electrically controlled and heat-generating squib, according to the preamble of patent claim 1.
  • At one in the EP 2 048 471 A2 described connecting body is opposite to the function of a squib exerting detonator in an ignition chamber of a firework fuse.
  • a squib exerting detonator in an ignition chamber of a firework fuse.
  • the ignition chamber a Anakiungsmasse is provided. Since according to this document the Anakiungsmasse by the user before, during and / or after inserting the fuse can be introduced, for example, by pouring, it should be a pourable ignition mass.
  • At one in the DE 19 27 907 A1 described pyrotechnic ignition device is a function of a squib exerting electric bridge igniter housed within a substantially cylindrical sleeve made of cardboard or plastic.
  • the bridge igniter is associated with a Anakiungsmasse, which may be mounted inside or outside of the sleeve and strengthen the more or less weak ignition of the bridge igniter in.
  • the sleeve is immersed, for example, with its end facing away from the bridge detonator in a moist mixture of black powder and binder, such as dextrin and pulled out again, then the adhering to the sleeve coating is dried, so that the black powder-binder mixture the front Sleeve end in a disadvantageous way can seal prophy.
  • a firing device firing device described is housed in a sleeve a pressed ignition charge of potassium nitrate and magnesium powder.
  • an igniter compound which may consist of a loose mixture of lead, silenium, magnesium and potassium nitrate.
  • an igniter compound which may consist of a loose mixture of lead, silenium, magnesium and potassium nitrate.
  • the squib 5 is used exclusively for ignition of the compressed Anzündcharge. In such a fireworks, the ignition is almost free of ignition, ie done instantaneously.
  • the invention has for its object to provide an improved connector body for an ignition system and thus an improved ignition system that ignites the pyrotechnic articles reliably and is still simple.
  • Anakiungsmasse which consists of at least two components, which are applied in two layers on the inner wall of the connecting body is a reliable positioning of the two Anakiungsmasse components and thus ensures a reliable, especially safe ignition of the ignition system.
  • the ignition performance of a squib is sufficient to ignite the first faster ignitable Anakiungsmassen component by a short time sparks to then ignite the less rapidly igniting component, in which the burning takes at least until the fuse has reliably ignited.
  • the relative allocation of the two Anakiungsmasse components ensures reliable ignition of the fuse.
  • the squib which is at the beginning of the ignition, produces an extremely short firing temperature of 1000 degrees Celsius over a period of 20 ms. This results in a firing rate of 20 seconds.
  • the next higher ignition stage is formed by the first component, namely in particular a black powder component which is ignited directly by the squib.
  • the black powder burns, for example, during half a second at a temperature of 800 degrees Celsius, resulting in a firing performance of 400 seconds, which is twenty times the ignition performance of the squib.
  • the black powder charge in turn ignites a second component, namely, in particular, a Bengal paste, which has a relatively large-area contact with the fuse. The Bengal paste is safely ignited in the above-mentioned ignition performance of the black powder.
  • the Bengal paste burns over a period of 8 seconds at a temperature of about 600 degrees Celsius. This would correspond to a firing rate of 4800 seconds, which corresponds to about twelve times the ignition power of the black powder. This high ignition performance ensures that the fuse is burned safely, so that reliable firing of fireworks or, when connected to an explosive device, the ignition of the explosive device is reliable.
  • the two components are preferably applied in a strip-shaped configuration on the inner wall of the connecting body.
  • the firing mass may fill the entire inside length of the preferably tubular connecting body or extend at least along the inner shell area over the entire length between the squib and the fuse.
  • the first component consists essentially of black powder.
  • the second component essentially contains Bengal paste or matchstick paste.
  • the component with the high burning power preferably Bengal paste
  • the first component preferably in the form of a black powder layer, is present.
  • the connecting body may preferably also accommodate a plurality of fuses.
  • the interior of the cavity of the ignition tube may be provided with webs which extend from the inner edge region of the tube radially in the direction of the center of the tube and are coated with Bengalpaste. These areas are also consistently connected to Bengal paste, which are directly adjacent to the first component, so that they can be ignited.
  • the connecting body is preferably hinged in its longitudinal direction, wherein a latching mechanism may be provided which, when engaged, the closed position of the
  • This construction has the advantage that the one or more fuses can be inserted in peace, their position can be checked and, as it were, the squib also inserted and their position can also be checked. If the fireman then decides to detonate another firework by this ignition system, he can reopen the detent and remove the fuse, making the arrangement much more flexible in handling by the fireman.
  • the Anfeuerungsrschreibchen invention consists of transparent plastic and both ignition components are colored differently colored. Thereby, a visual check is possible as to whether the squib is in intimate contact with the first component and the fuse in intimate contact with the second component, and whether the first component and the second component are also in intimate contact with each other, so that a respective Combustion between the squib and the first component or first component and second component and second component and fuse is present.
  • the preferably tube-shaped connecting body as An mecanicungsmasse an inner strip 17 of two superimposed, ignition-reinforcing materials 26 and 28.
  • the connecting body is in a preferred Way of inelastically deformable, non-breakable materials, preferably soft metals, inelastic deformable plastic or a wire mesh with a water-repellent shell.
  • a connectable to the fuse 12 fireworks 10 is shown schematically.
  • the length of the connecting body 14 in this embodiment is between 4 and 6 cm, its diameter is about 2 mm inside and 3 mm outside.
  • the connecting body 14 in the form of a tube preferably has a round cross-section.
  • the ignition-enhancing Anfeuerungsmasse which forms the ignition bridge between the squib 18 and the fuse 12, is located as a two-part coating in the interior of the connecting body 14 and extends substantially over its entire length.
  • the second component 26 of the ignition-enhancing Anerieungsmasse is applied as a base layer on the inside of the connecting body 14.
  • the first component 28 preferably a black powder mixture, which is integrated into a suitable carrier substance.
  • the second component 26 lying beneath the first component 28 is applied to the inner jacket of the connecting body 14.
  • This layer 26 is preferably made of Bengal paste.
  • FIG. 1 the ignition position of the squib 18 is indicated by the dashed line 22, as well as the ignition position for the fuse 12 by the dashed line 24th
  • the squib 18 When the squib 18 is ignited by an electrical pulse, the squib 18 generates a very short-term heat, a so-called heat pulse, which is shown in the drawing with arrows. This heat pulse is sufficient to ignite the first component 28, ie the black powder layer, since the squib is in close proximity to the black powder layer.
  • the fuse 12 is indeed with its free end also arranged close to the squib 18, wherein the squib does not have to ignite the fuse 12 directly, which represents a significant advantage over the prior art.
  • the black powder layer burns down. It generates within this half second a relatively high firing temperature which is capable of igniting the second component 26.
  • FIG. 3 Figure 12 shows the state after the first component 28 is burned off and the second component 26 of the ignition enhancing material burns off in the form of Bengal paste at a time interval between 0.5 seconds and 2 seconds.
  • the arrows pointing downward in the fuse 12 are intended to symbolize that the fuse has caught fire and the fire spreads in the direction of these arrows, so the fuse burns as desired.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Air Bags (AREA)

Description

Die Erfindung betrifft einen Verbindungskörper für ein Zündsystem für pyrotechnische Gegenstände, das mittels einer elektrisch angesteuerten und Hitze erzeugenden Zündpille zündet, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a connecting body for an ignition system for pyrotechnic articles, which ignites by means of an electrically controlled and heat-generating squib, according to the preamble of patent claim 1.

Bei einem in der EP 2 048 471 A2 beschriebenen Verbindungskörper liegt ein die Funktion einer Zündpille ausübender Zünder in einer Zündkammer einer Feuerwerkszündschnur gegenüber. In der Zündkammer ist eine Anfeuerungsmasse vorgesehen. Da gemäß dieser Druckschrift die Anfeuerungsmasse von dem Benutzer vor, während und/oder nach dem Einlegen der Zündschnur beispielsweise durch Einschütten eingebracht werden kann, dürfte es sich um eine schüttfähige Anzündungsmasse handeln.At one in the EP 2 048 471 A2 described connecting body is opposite to the function of a squib exerting detonator in an ignition chamber of a firework fuse. In the ignition chamber a Anfeuerungsmasse is provided. Since according to this document the Anfeuerungsmasse by the user before, during and / or after inserting the fuse can be introduced, for example, by pouring, it should be a pourable ignition mass.

Bei einem in der DE 10 2007 094 070 A1 beschriebenen Verbindungskörper ohne elektrische Zündpille sind zwei teilweise nebeneinander geführte, sich überlappende Zündschnüre in dem Überlappungsbereich in eine schüttfähige Anfeuerungsmasse eingebettet, die entweder von einem Benutzer vor dem Einlegen der Zündschnüre in den Verbindungskörper eingeschüttet sein oder fest an der Innenwandung des Verbindungskörpers vorliegen kann.At one in the DE 10 2007 094 070 A1 described connecting body without electric squib are two partially juxtaposed, overlapping fuses embedded in the overlap region in a pourable Anfeuerungsmasse that can either be poured by a user before inserting the fuses in the connecting body or fixed to the inner wall of the connecting body.

Bei einer in der DE 19 27 907 A1 beschriebenen pyrotechnischen Zündeinrichtung ist ein die Funktion einer Zündpille ausübender elektrischer Brückenzünder innerhalb einer im Wesentlichen zylindrischen Hülse aus Pappe oder Kunststoff untergebracht. Um eine sichere Zündung der brennbaren Masse eines Feuerwerkskörpers sicherzustellen, ist dem Brückenzünder eine Anfeuerungsmasse zugeordnet, die innen oder außen an der Hülse angebracht sein kann und den mehr oder weniger schwachen Zündstrahl des Brückenzünders in verstärken soll. Die Hülse ist beispielsweise mit ihrem vom Brückenzünder abgewandten Ende in eine feuchte Mischung aus Schwarzpulver und Bindemittel, z.B. Dextrin, eingetaucht und daraus wieder herausgezogen worden, wobei anschließend der an der Hülse haftende Überzug getrocknet wird, so dass das Schwarzpulver-Bindemittel-Gemisch das vordere Hülsenende in nachteiliger Weise propfenartig verschließen kann.At one in the DE 19 27 907 A1 described pyrotechnic ignition device is a function of a squib exerting electric bridge igniter housed within a substantially cylindrical sleeve made of cardboard or plastic. To be safe To ensure ignition of the combustible mass of a firecracker, the bridge igniter is associated with a Anfeuerungsmasse, which may be mounted inside or outside of the sleeve and strengthen the more or less weak ignition of the bridge igniter in. The sleeve is immersed, for example, with its end facing away from the bridge detonator in a moist mixture of black powder and binder, such as dextrin and pulled out again, then the adhering to the sleeve coating is dried, so that the black powder-binder mixture the front Sleeve end in a disadvantageous way can seal prophy.

Bei einer in der US 2,476,370 A beschriebenen Zündvorrichtung für Feuerwerkskörper ist eine gepresste Anzündcharge aus Kaliumnitrat und Magnesiumpulver in einer Hülse untergebracht. Oberhalb der Anzündcharge befindet sich eine Anzündmasse, die aus einer lockeren Mischung aus Blei, Silenium, Magnesium und Kaliumnitrat bestehen kann. In diese Anzündmasse ist eine an zwei Leitungsdrähte angeschlossene Zündbrücke bzw. Zündpille eingebettet. Die Zündpille 5 dient ausschließlich zur Zündung der zusammengepressten Anzündcharge. Bei einem derartigen Feuerwerkskörper soll die Zündung nahezu zündungsfrei, d.h. augenblicklich erfolgen.At one in the US 2,476,370 A firing device firing device described is housed in a sleeve a pressed ignition charge of potassium nitrate and magnesium powder. Above the ignition charge is an igniter compound, which may consist of a loose mixture of lead, silenium, magnesium and potassium nitrate. In this Anzündmasse a connected to two wires ignition bridge or squib is embedded. The squib 5 is used exclusively for ignition of the compressed Anzündcharge. In such a fireworks, the ignition is almost free of ignition, ie done instantaneously.

Bei den bekannten Verbindungskörpern ist ein zuverlässiges Überspringen eines Zündfunkens von der Zündpille auf die Zündschnur eines pyrotechnischen Gegenstandes nicht gewährleistet. Bei den Systemen, bei denen von dem Benutzer eine Anfeuerungsmasse in den Verbindungskörper eingehüllt werden soll, besteht ein gewisses Gefahrenmoment.In the known connecting bodies, a reliable skipping of a spark from the squib to the fuse of a pyrotechnic article is not guaranteed. In the systems in which the user is intended to envelop a priming mass in the connecting body, there is a certain degree of danger.

Der Erfindung liegt die Aufgabe zugrunde, einen verbesserten Verbindungskörper für ein Zündsystem und damit ein verbessertes Zündsystem zu schaffen, das die pyrotechnischen Gegenstände verlässlich zündet und trotzdem einfach aufgebaut ist.The invention has for its object to provide an improved connector body for an ignition system and thus an improved ignition system that ignites the pyrotechnic articles reliably and is still simple.

Vorteile der Erfindung:

  • Diese Aufgabe wird gelöst durch die Merkmale gemäß dem Kennzeichen des Patentanspruchs 1.
Advantages of the invention:
  • This object is achieved by the features according to the characterizing part of patent claim 1.

Durch die Verwendung einer Anfeuerungsmasse, die aus wenigstens zwei Komponenten besteht, die zweischichtig auf die Innenwand des Verbindungskörpers aufgetragen sind, ist eine zuverlässige Positionierung der beiden Anfeuerungsmasse-Komponenten gewährleistet und damit auch eine zuverlässige, insbesondere auch gefahrlose Zündung des Zündsystems.By the use of a Anfeuerungsmasse, which consists of at least two components, which are applied in two layers on the inner wall of the connecting body is a reliable positioning of the two Anfeuerungsmasse components and thus ensures a reliable, especially safe ignition of the ignition system.

Bevorzugte Ausführungsformen der Erfindung sind in Unteransprüchen behandelt.Preferred embodiments of the invention are dealt with in subclaims.

Die Zündleistung einer Zündpille reicht aus, die erste schneller zündbare Anfeuerungsmassen-Komponente durch einen zeitlich kurzen Zündfunken zu zünden, um anschließend die weniger schnell zündende Komponente zu zünden, bei der das Abbrennen wenigstens so lange dauert, bis die Zündschnur verlässlich gezündet hat. Die relative Zuordnung der beiden Anfeuerungsmasse-Komponenten sichert eine zuverlässige Zündung der Zündschnur.The ignition performance of a squib is sufficient to ignite the first faster ignitable Anfeuerungsmassen component by a short time sparks to then ignite the less rapidly igniting component, in which the burning takes at least until the fuse has reliably ignited. The relative allocation of the two Anfeuerungsmasse components ensures reliable ignition of the fuse.

Die am Anfang der Zündung stehende Zündpille erzeugt beispielsweise eine zeitlich äußerst kurze Brenntemperatur von 1000 Grad Celsius, während einer Zeitdauer von 20 ms. Damit ergibt sich eine Zündleistung von 20 Sekundengrad. Die nächsthöhere Zündungsstufe wird durch die erste Komponente, nämlich insbesondere eine Schwarzpulverkomponente gebildet, die direkt durch die Zündpille gezündet wird. Das Schwarzpulver brennt beispielsweise während einer halben Sekunde bei einer Temperatur von 800 Grad Celsius, woraus sich eine Zündleistung von 400 Sekundengrad ergibt, also das zwanzigfachen der Zündleistung der Zündpille. Die Schwarzpulverladung zündet ihrerseits eine zweite Komponente, nämlich insbesondere eine Bengalpaste, die einen relativ großflächigen Kontakt mit der Zündschnur hat. Die Bengalpaste wird bei der obengenannten Zündleistung des Schwarzpulvers sicher gezündet.For example, the squib, which is at the beginning of the ignition, produces an extremely short firing temperature of 1000 degrees Celsius over a period of 20 ms. This results in a firing rate of 20 seconds. The next higher ignition stage is formed by the first component, namely in particular a black powder component which is ignited directly by the squib. The black powder burns, for example, during half a second at a temperature of 800 degrees Celsius, resulting in a firing performance of 400 seconds, which is twenty times the ignition performance of the squib. The black powder charge in turn ignites a second component, namely, in particular, a Bengal paste, which has a relatively large-area contact with the fuse. The Bengal paste is safely ignited in the above-mentioned ignition performance of the black powder.

Die Bengalpaste brennt über einen Zeitraum von 8 Sekunden bei einer Temperatur von ca. 600 Grad Celsius. Dies entspräche einer Zündleistung von 4800 Sekundengrad und entspricht damit etwa dem zwölffachen der Zündleistung des Schwarzpulvers. Diese große Zündleistung stellt sicher, dass die Zündschnur sicher angebrannt wird, so dass eine sichere Zündung des Feuerwerkskörpers oder, bei Anschluss eines Sprengkörpers, die Zündung des Sprengkörpers zuverlässig erfolgt.The Bengal paste burns over a period of 8 seconds at a temperature of about 600 degrees Celsius. This would correspond to a firing rate of 4800 seconds, which corresponds to about twelve times the ignition power of the black powder. This high ignition performance ensures that the fuse is burned safely, so that reliable firing of fireworks or, when connected to an explosive device, the ignition of the explosive device is reliable.

Die beiden Komponenten sind vorzugsweise in streifenförmiger Ausbildung auf die Innenwand des Verbindungskörpers aufgetragen.The two components are preferably applied in a strip-shaped configuration on the inner wall of the connecting body.

In bevorzugten Ausführungsformen kann die Anfeuerungsmasse die gesamte Innenlänge des vorzugsweise röhrchenförmigen Verbindungskörpers ausfüllen oder sich zumindest entlang des Innenmantelbereichs auf der gesamten Länge zwischen Zündpille und Zündschnur erstrecken.In preferred embodiments, the firing mass may fill the entire inside length of the preferably tubular connecting body or extend at least along the inner shell area over the entire length between the squib and the fuse.

In bevorzugter Weise besteht die erste Komponente im Wesentlichen aus Schwarzpulver.Preferably, the first component consists essentially of black powder.

In bevorzugter Weise enthält die zweite Komponente im Wesentlichen Bengalpaste oder Streichholzpaste.Preferably, the second component essentially contains Bengal paste or matchstick paste.

Die Komponente mit der hohen Brennleistung, vorzugsweise Bengalpaste, haftet direkt auf der Innenseite des Verbindungskörpers. Auf dieser aufgebracht und in Brennkontakt mit der Zündpille stehend ist die erste Komponente, vorzugsweise in Form einer Schwarzpulverschicht, vorhanden.The component with the high burning power, preferably Bengal paste, adheres directly to the inside of the connecting body. Applied to this and in firing contact with the squib, the first component, preferably in the form of a black powder layer, is present.

Der Verbindungskörper kann vorzugsweise auch mehrere Zündschnüre aufnehmen. Zu diesem Zweck kann auch das Innere des Hohlraums des Anzündröhrchens mit Stegen versehen sein, die vom inneren Randbereich des Röhrchens radial in Richtung Mitte des Röhrchens verlaufen und mit Bengalpaste überzogen sind. Auch diese Bereiche sind durchgängig mit Bengalpaste verbunden, die räumlich direkt mit der ersten Komponente eng benachbart sind, damit sie gezündet werden können.The connecting body may preferably also accommodate a plurality of fuses. For this purpose, the interior of the cavity of the ignition tube may be provided with webs which extend from the inner edge region of the tube radially in the direction of the center of the tube and are coated with Bengalpaste. These areas are also consistently connected to Bengal paste, which are directly adjacent to the first component, so that they can be ignited.

Der Verbindungskörper ist vorzugsweise in seiner Längsrichtung aufklappbar, wobei ein Rastmechanismus vorgesehen sein kann, der wenn eingerastet, die Geschlossenstellung desThe connecting body is preferably hinged in its longitudinal direction, wherein a latching mechanism may be provided which, when engaged, the closed position of the

Verbindungskörpers gewährleistet. Diese Konstruktion besitzt den Vorteil, dass die eine oder mehrere Zündschnüre in Ruhe eingelegt werden kann, ihre Position geprüft werden kann und gleichsam die Zündpille ebenso eingelegt und deren Position ebenfalls überprüft werden kann. Sollte sich der Feuerwerker dann entschließen, doch einen anderen Feuerwerkskörper durch dieses Zündsystem zu zünden, so kann er die Rastung wieder öffnen und die Zündschnur entfernen, wodurch die Anordnung deutlich flexibler in der Handhabung durch den Feuerwerker wird.Ensures connecting body. This construction has the advantage that the one or more fuses can be inserted in peace, their position can be checked and, as it were, the squib also inserted and their position can also be checked. If the fireman then decides to detonate another firework by this ignition system, he can reopen the detent and remove the fuse, making the arrangement much more flexible in handling by the fireman.

In bevorzugter Weise besteht das erfindungsgemäße Anfeuerungsröhrchen aus transparentem Kunststoff und beide Zündkomponenten sind verschiedenfarbig eingefärbt. Dadurch ist eine visuelle Kontrolle daraufhin möglich, ob die Zündpille in innigem Kontakt mit der ersten Komponente und die Zündschnur in innigem Kontakt mit der zweiten Komponente steht, und ob die erste Komponente und die zweite Komponente untereinander ebenfalls in innigem Kotakt stehen, so dass ein jeweiliger Brennkontakt zwischen Zündpille und erster Komponente bzw. erster Komponente und zweiter Komponente und zweiter Komponente und Zündschnur vorhanden ist.Preferably, the Anfeuerungsröhrchen invention consists of transparent plastic and both ignition components are colored differently colored. Thereby, a visual check is possible as to whether the squib is in intimate contact with the first component and the fuse in intimate contact with the second component, and whether the first component and the second component are also in intimate contact with each other, so that a respective Combustion between the squib and the first component or first component and second component and second component and fuse is present.

ZEICHNUNGENDRAWINGS

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der Beschreibung näher beschrieben.

  • Figur 1 zeigt im Axialschnitt des erfindungsgemäßen Verbindungskörpers in Form eines "Anzündröhrchens" mit in den Verbindungskörper eingelegter Zündpille zum Zeitpunkt der Zündung der Zündpille durch einen elektrischen Impuls, wobei die Pfeile die Hitzewirkung schematisch illustrieren sollen;
  • Figur 2 ist eine Darstellung gemäß Figur 1, nachdem die Zündpille abgebrannt ist und eine Schwarzpulverschicht als erste Komponente Hitze entwickelt (siehe die Pfeile);
  • Figur 3 zeigt eine Darstellung gemäß Figur 2, nachdem die erste Komponente abgebrannt ist und die zweite Komponente abbrennt, zu einem Zeitpunkt im Intervall zwischen 0,5 Sekunden und 2 Sekunden.
Embodiments of the invention are illustrated in the drawings and described in more detail in the description.
  • FIG. 1 shows in the axial section of the connecting body according to the invention in the form of an "ignition tube" with inserted into the connecting body squib at the time of ignition of the squib by an electrical pulse, the arrows are to illustrate the heat effect schematically;
  • FIG. 2 is a representation according to FIG. 1 after the detonator is burned and a black powder layer as the first component develops heat (see the arrows);
  • FIG. 3 shows a representation according to FIG. 2 After the first component burns off and the second component burns off, at a time in the interval between 0.5 seconds and 2 seconds.

Gemäß Figur 1 enthält der vorzugsweise röhrchenförmige Verbindungskörper als Anfeuerungsmasse einen innen liegenden Streifen 17 aus zwei übereinander angeordneten, zündverstärkenden Materialien 26 und 28. Der Verbindungskörper besteht in bevorzugter Weise aus unelastisch verformbaren, nicht brechbaren Materialien, vorzugsweise Weichmetalle, unelastisch verformbarem Kunststoff oder einem Drahtgeflecht mit einer wasserabweisenden Hülle.According to FIG. 1 the preferably tube-shaped connecting body as Anfeuerungsmasse an inner strip 17 of two superimposed, ignition-reinforcing materials 26 and 28. The connecting body is in a preferred Way of inelastically deformable, non-breakable materials, preferably soft metals, inelastic deformable plastic or a wire mesh with a water-repellent shell.

Ein an die Zündschnur 12 anschließbarer Feuerwerkskörper 10 ist schematisiert dargestellt.A connectable to the fuse 12 fireworks 10 is shown schematically.

Die Länge des Verbindungskörpers 14 beträgt in diesem Ausführungsbeispiel zwischen 4 und 6 cm, sein Durchmesser beträgt etwa 2 mm innen und 3 mm außen.The length of the connecting body 14 in this embodiment is between 4 and 6 cm, its diameter is about 2 mm inside and 3 mm outside.

Der Verbindungskörper 14 in Form eines Röhrchens hat vorzugsweise einen runden Querschnitt.The connecting body 14 in the form of a tube preferably has a round cross-section.

Die zündverstärkende Anfeuerungsmasse, die die Zündbrücke zwischen der Zündpille 18 und der Zündschnur 12 bildet, befindet sich als zweiteilige Beschichtung im Innenraum des Verbindungskörpers 14 und erstreckt sich im Wesentlichen über dessen gesamte Länge. Die zweite Komponente 26 der zündverstärkenden Anfeuerungsmasse ist als Basisschicht auf der Innenseite des Verbindungskörpers 14 aufgebracht. Direkt auf dieser Komponente 26 aufgebracht oder getrennt über einen geeigneten Haftvermittler befindet sich die erste Komponente 28, vorzugsweise eine Schwarzpulvermischung, die in eine geeignete Trägersubstanz integriert ist.The ignition-enhancing Anfeuerungsmasse, which forms the ignition bridge between the squib 18 and the fuse 12, is located as a two-part coating in the interior of the connecting body 14 and extends substantially over its entire length. The second component 26 of the ignition-enhancing Anfeuerungsmasse is applied as a base layer on the inside of the connecting body 14. Applied directly to this component 26 or separated via a suitable adhesion promoter is the first component 28, preferably a black powder mixture, which is integrated into a suitable carrier substance.

Die unter der ersten Komponente 28 liegende zweite Komponente 26 ist die auf dem Innenmantel des Verbindungskörpers 14 aufgebracht. Diese Schicht 26 besteht vorzugsweise aus Bengalpaste.The second component 26 lying beneath the first component 28 is applied to the inner jacket of the connecting body 14. This layer 26 is preferably made of Bengal paste.

In Figur 1 ist die Zündposition der Zündpille 18 durch die gestrichelte Linie 22 gekennzeichnet, ebenso die Zündposition für die Zündschnur 12 durch die gestrichelte Linie 24.In FIG. 1 the ignition position of the squib 18 is indicated by the dashed line 22, as well as the ignition position for the fuse 12 by the dashed line 24th

Wenn die Zündpille 18 durch einen elektrischen Impuls gezündet wird, erzeugt die Zündpille 18 eine sehr kurzzeitige Hitzeentwicklung, einen sogenannten Hitzepuls, der in der Zeichnung mit Pfeilen dargestellt ist. Dieser Hitzepuls ist ausreichend, um die erste Komponente 28, d.h. die Schwarzpulverschicht, zu zünden, da die Zündpille sich in unmittelbarer Nähe zu der Schwarzpulverschicht befindet. Die Zündschnur 12 ist zwar mit ihrem freien Ende ebenfalls nah an der Zündpille 18 angeordnet, wobei die Zündpille nicht die Zündschnur 12 direkt entzünden muss, was einen tiefgreifenden Vorteil gegenüber dem Stand der Technik darstellt.When the squib 18 is ignited by an electrical pulse, the squib 18 generates a very short-term heat, a so-called heat pulse, which is shown in the drawing with arrows. This heat pulse is sufficient to ignite the first component 28, ie the black powder layer, since the squib is in close proximity to the black powder layer. The fuse 12 is indeed with its free end also arranged close to the squib 18, wherein the squib does not have to ignite the fuse 12 directly, which represents a significant advantage over the prior art.

Die Zündpille zündet zum Zeitpunkt t=0 Sekunden und bleibt im brennenden Zustand bis ca. 0,2 ms später. Diese kurze Zeitspanne ist ausreichend, um die erste Komponente 28 zu entzünden.The squib ignites at time t = 0 seconds and remains in the burning state until about 0.2 ms later. This short period of time is sufficient to ignite the first component 28.

Die Fortsetzung des Zündvorgangs ist in den Figuren 2 und 3 dargestellt:

  • Figur 2 zeigt den Zustand nachdem die Zündpille abgebrannt ist und eine Schwarzpulverschicht als erste Komponente 28 Hitze entwickelt (siehe die Pfeile);
The continuation of the ignition process is in the Figures 2 and 3 shown:
  • FIG. 2 shows the state after the squib burned off and a black powder layer as first component 28 develops heat (see the arrows);

In einem Zeitraum von t=0,2 ms bis etwa 0,502 s, was also einer halben Sekunde entspricht, brennt die Schwarzpulverschicht ab. Sie erzeugt innerhalb dieser halben Sekunde eine relativ hohe Brenntemperatur, die im Stande ist, die zweite Komponente 26 zu entzünden.In a period of t = 0.2 ms to about 0.502 s, which corresponds to half a second, the black powder layer burns down. It generates within this half second a relatively high firing temperature which is capable of igniting the second component 26.

Figur 3 zeigt den Zustand, nachdem die erste Komponente 28abgebrannt ist und die zweite Komponente 26 des zündverstärkenden Materials in Form von Bengalpaste abbrennt, zu einem Zeitpunkt im Intervall zwischen 0,5 Sekunden und zwei Sekunden. FIG. 3 Figure 12 shows the state after the first component 28 is burned off and the second component 26 of the ignition enhancing material burns off in the form of Bengal paste at a time interval between 0.5 seconds and 2 seconds.

Die senkrecht nach unten verlaufenden Pfeile in der Zündschnur 12 sollen symbolisieren, dass die Zündschnur Feuer gefangen hat und sich das Feuer in Richtung dieser Pfeile ausbreitet, die Zündschnur also wunschgemäß abbrennt.The arrows pointing downward in the fuse 12 are intended to symbolize that the fuse has caught fire and the fire spreads in the direction of these arrows, so the fuse burns as desired.

Claims (10)

  1. Connector body (14) for an ignition system (8) for pyrotechnic articles, which ignition system (8) ignites by means of an electrically triggered and heat generating ignitor, whereby the connector body (14) has a shape and a functionality such
    a1) that it can be fastened to the match cord (12) of the pyrotechnic article,
    a2) that it can connect the ignitor (18) with the match cord (12) of the pyrotechnic article ready for ignition of the ignitor (18),
    a3) that it can fixedly mount the ignitor (18) and the electrical feed line in close proximity to the match cord (12) of the pyrotechnic article by means of fixing means,
    b) whereby an ignition composition is provided additionally to the ignitor (18) for enhancing the ignition in/at the connector body such that the ignition composition is positioned in inflammable contact relatively to the ignitor and the match cord
    characterized in that the ignition composition contains at least two constituents (26, 28) such that a first constituent (28) which is rapidly ignitable by a temporally short ignition spark and which is in inflammable contact with the second constituent (26) which is less rapidly ignitable than the first constituent, burns at least such a long time until the second constituent has ignited, and whereby the burning of this second constituent continues at least such a long time until the match cord has ignited, and in that the two constituents (28 and 26) are applied to the inner wall of the connector body in two layers and in that the second constituent (26) is applied as a base layer to the inner side of the connector body (14).
  2. Connector body according to claim 1, characterized in that the two constituents (26; 28) are applied to the inner wall of the connector body (14) in an arrangement of strips.
  3. Connector body according to claim 1 or 2, characterized in that the first constituent (28) is a black powder constituent.
  4. Connector body according to one of the claims 1 to 3, characterized in that the second constituent (26) is selected from the group of Bengali ignition paste and/or match ignition paste.
  5. Connector body according one of the claims 1 to 4, characterized in that the first and second constituents (26; 28) of the ignition composition are applied to the interior of the connector body (14) in the form of strips extending from the ignition position of the ignitor (18) to the ignition position of the match cord (12).
  6. Connector body according to one of the claims 1 to 5, characterized in that the first constituent in the region of the ignitor (18) fills out the complete region of the inner wall of the connector body (14) in the form of a black powder ring strip.
  7. Connector body according to claim 6, characterized in that the black powder ring strip continues at one or more positions in the form of strips in the direction towards the match cord (12).
  8. Connector body according to one of the claims 1 to 7, characterized in that it consists of a transparent synthetic material and that the two constituents (26; 28) are coloured in different colours to enable a visual control, whether the ignitor (18) is in close contact with the first constituent (28) and whether the match cord (12) is in close contact with the second constituent (26) and whether the first constituent (28) and the second constituent (26) are in close contact with each other.
  9. Connector body according to one of the claims 1 to 8, characterized in that the first constituent (28) is applied to the second constituent (26) separated by an appropriate bonding agent.
  10. Connector body according to one of the claims 1 to 9, characterized in that the connector body (14) has the form of a small tube.
EP10008164.5A 2010-07-09 2010-08-05 Improved ignition system for pyrotechnical objects Not-in-force EP2405229B8 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10008164T PL2405229T3 (en) 2010-07-09 2010-08-05 Improved ignition system for pyrotechnical objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010010098 2010-07-09

Publications (4)

Publication Number Publication Date
EP2405229A2 EP2405229A2 (en) 2012-01-11
EP2405229A3 EP2405229A3 (en) 2014-04-02
EP2405229B1 true EP2405229B1 (en) 2017-01-04
EP2405229B8 EP2405229B8 (en) 2017-04-12

Family

ID=42799863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10008164.5A Not-in-force EP2405229B8 (en) 2010-07-09 2010-08-05 Improved ignition system for pyrotechnical objects

Country Status (4)

Country Link
EP (1) EP2405229B8 (en)
DE (1) DE202010015954U1 (en)
ES (1) ES2621229T3 (en)
PL (1) PL2405229T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476370A (en) * 1945-01-19 1949-07-19 Hercules Powder Co Ltd Electric initiator device and ignition composition
FR1000774A (en) * 1949-11-18 1952-02-15 Artifices Titan Soc D Improvement in fireworks
DE1927907A1 (en) * 1969-03-31 1971-02-11 Dynamit Nobel Ag Firework igniter
DE102007049070B4 (en) * 2007-10-12 2010-04-08 Weco Pyrotechnische Fabrik Gmbh Channel-like device for connecting at least two pyrotechnic lines and fireworks arrangement
DE102007049069A1 (en) * 2007-10-12 2009-04-16 Weco Pyrotechnische Fabrik Gmbh Connecting element for the connection of at least two pyrotechnic lines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2405229A3 (en) 2014-04-02
EP2405229A2 (en) 2012-01-11
DE202010015954U1 (en) 2011-02-10
PL2405229T3 (en) 2017-07-31
ES2621229T3 (en) 2017-07-03
EP2405229B8 (en) 2017-04-12

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