EP0784041B1 - Detonator with a shock tube initiator - Google Patents

Detonator with a shock tube initiator Download PDF

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Publication number
EP0784041B1
EP0784041B1 EP96119581A EP96119581A EP0784041B1 EP 0784041 B1 EP0784041 B1 EP 0784041B1 EP 96119581 A EP96119581 A EP 96119581A EP 96119581 A EP96119581 A EP 96119581A EP 0784041 B1 EP0784041 B1 EP 0784041B1
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EP
European Patent Office
Prior art keywords
detonator
shrunk
tube
fuse
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96119581A
Other languages
German (de)
French (fr)
Other versions
EP0784041A1 (en
Inventor
Günter Berg
Dieter Faust
Erwin Wrobel
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.)
Diehl Stiftung and Co KG
Original Assignee
Diehl Stiftung and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diehl Stiftung and Co KG filed Critical Diehl Stiftung and Co KG
Publication of EP0784041A1 publication Critical patent/EP0784041A1/en
Application granted granted Critical
Publication of EP0784041B1 publication Critical patent/EP0784041B1/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C06C5/06—Fuse igniting means; Fuse connectors
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers

Definitions

  • the invention relates to a detonator with an ignition cord after Preamble of claim 1.
  • a detonator with detonating cord is known.
  • a watertight connection between the fuse and the detonator is metallic by a detonator and part of the fuse Reached sleeve in which the metallic sleeve in a region of the fuse is strangled.
  • the seal between the sleeve containing the explosive charges and the ignition cord is problematic.
  • the metallic sleeve with the very soft one applies and flexible ignition cord to connect waterproof and firm.
  • According to the DE 30 10 067 C2 does this by a three-stage structure, namely by one dimensionally adapted to the ignition cord, a hydrophobic Lubricant and by repeatedly choking or constricting the sleeve, Hollow body and lighting cord.
  • Such a seal or connection is said to Ensure long-term functionality of the detonator. However, this is not always given.
  • the hydrophobic lubricant becomes Displaces towards the face of the firing cord and penetrates its open End, which affects the ignitability of the ignition cord.
  • On the other hand can occur during strangulation and also due to long-term release of tensions between the face of the ignition cord and the inner sleeve that the Contains primary charge, form a gap that fills with the lubricant and thus represents an ignition barrier.
  • the object of the invention is therefore to reproducible over-ignition between to ensure the ignition cord and the primary charge and that over a Period of> 10 years.
  • the invention solves this problem according to the characterizing features of claim 1.
  • the direct connection between the shrink tube and the ignition cord on the one hand and the sleeve, on the other hand, with the intermediate layer thermoplastic adhesive is both in the shrinking process of the shrink tube as well as after a maximum storage without tension, d. i.e., the ignition cord is free of gaps - without an intermediate layer of adhesive - on the front of the Inner sleeve.
  • the waterproofness is available, so that the overall Function of the detonator - even after a long storage period - is reproducible.
  • the waterproof and firm connection of the ignition cord and the sleeve is inexpensive to be manufactured as no fits and lubricants are required during assembly are. Rather, the shrink tube is problem-free due to an oversize to position and by a short, related to its length Attach the heat zone to the parts mentioned using the adhesive.
  • the glue is in the form of a complete inner coating on the shrink tube.
  • the shrink tube is shrunk onto a section of the fuse, the length of the shrunk portion being about 2.5 to 3 times of the diameter of the ignition cord.
  • the length of the on the sleeve shrink-fit shrink tubing is 1.3 to 1.7 times the diameter the ignition cord. In combination with the adhesive, this guarantees a mechanically safe and waterproof connection. Radial relative movements between the igniter cord and the detonator holder Shrink tube - which is a quasi-elastic coupling - is initially damped and then eliminated so that the adhesive bond is not affected.
  • the shrink tube is an inexpensive and easy-to-use component, that in the above Form of use all requirements for water resistance, Storage stability and strength met.
  • a detonator capsule 1 is firmly connected to an ignition cord 2.
  • the detonator 1 consists of a primary charge 3 in an inner sleeve 4, a secondary charge 5 in an aluminum sleeve 6, a protective cap 7, with a the protective cap 7 screwed detonator holder 8 and from a shrink tube 10th
  • the shrink tube 10 is shown in FIG. 2 in the initial state. At his Inside, it has a very thin layer of a thermoplastic and hydrophobic Glue 11 on. The adhesive 11 is shown symbolically.
  • the sleeve 6 comprises the secondary charge 5, the inner sleeve 4 with the primary charge 3 and part of the ignition cord 2.
  • the outer diameter of the sleeve 6 is in Range of charges 3.5 designated 14.
  • the ignition cord 2 is in the connecting section 16 of the sleeve 6 with little "Game” led.
  • connection portion 16 Outside diameter 17 (Fig. 2). This is compared to the outside diameter 14 approximately corresponding to twice the thickness 18 of the shrink tube 10 downsized.
  • the shrink tube 10 stands with a collar 19 (FIG. 1) of a guide section 22 slightly beyond the free edge 20 of the detonator holder 8 and serves as kink protection for the ignition cord 2.
  • the length of the connecting section 16 of the shrink tube 10 and sleeve 6 is 1.6 times the diameter 12 of the ignition cord 2.
  • the length of the Guide section 22 of the shrink tube 10 is 2.7 times the ignition cord 2 of diameter 12.
  • a distance 25 between an end face 26 of the ignition cord 2 and the connecting section 16 is slightly larger than twice the diameter 12 of the ignition cord 2nd
  • the shrink tube 10 is easily on the sleeve 6 and on the already positioned in the sleeve 6 inserted ignition cord 2 and then for the purposeshrinking exposed to heat treatment.
  • the distances 16 and 25 ensure that when cooling the aluminum existing sleeve 6 and the resulting shortening of the sleeve 6 the End face 26 of the ignition cord 2 with a certain preload on the inner sleeve 4 is present because the shrink tube 10 is the thermally insulated ignition cord 2 already attached in section 22.
  • the ignition cord 2 experiences during the heat treatment the shrink tube 10 no change in length - so in contrast to the sleeve 6, which during the heat treatment with respect to the section 16 with the circumferential shrink tube 10 and the attached subsequent section 25 expands.
  • the heat treatment of the Shrink tube 10 is placed on the ignition cord 2 in the direction of an arrow 28 exerted pressure so that during this phase there was no gap between the end face 26 and the inner sleeve 4 is taken care of.
  • the shrinking process of the shrink tube 10 causes in connection with the adhesive 11 a waterproof and firm connection of the ignition cord 2 and Sleeve 6, the end face 26 without gaps and without being affected by the Adhesive 11 therefore bears directly against the inner sleeve 4.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Insulating Bodies (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

In the detonating cap, with a fuse cord (2), the sealed sleeve is a shrunk tube (10) with an inner layer of a thermoplastic adhesive (11). The shrunk tube (10) acts as an elastic coupling for a rigid section (16) of the sleeve (6) at the opening side and a guide section for the fuse cord (2) with a slight movement.

Description

Die Erfindung bezieht sich auf eine Sprengkapsel mit Anzündschnur nach dem Oberbegriff des Anspruchs 1.The invention relates to a detonator with an ignition cord after Preamble of claim 1.

Aus der DE 28 14 581 C2 ist ein Sprengkapselzünder mit Zündschnur bekannt. Eine wasserdichte Verbindung zwischen der Zündschnur und der Sprengkapsel wird durch eine Sprengkapsel und einen Teil der Zündschnur umfassende metallische Hülse erreicht, in dem die metallische Hülse in einem Bereich der Zündschnur angewürgt ist.From DE 28 14 581 C2 a detonator with detonating cord is known. A watertight connection between the fuse and the detonator is metallic by a detonator and part of the fuse Reached sleeve in which the metallic sleeve in a region of the fuse is strangled.

Die Dichtung zwischen der, die Sprengladungen enthaltenden Hülse und der Anzündschnur ist problematisch. Es gilt die metallische Hülse mit der sehr weichen und biegsamen Anzündschnur wasserdicht und fest zu verbinden. Entsprechend der DE 30 10 067 C2 erfolgt dies durch einen dreistufigen Aufbau, nämlich durch einen maßlich an die Anzündschnur angepaßten Hohlkörper, ein hydrophobes Gleitmittel und durch ein mehrfaches Anwürgen bzw. Einschnüren von Hülse, Hohlkörper und Anzündschnur. Eine derartige Dichtung bzw. Verbindung soll die langzeitige Funktionsfähigkeit der Sprengkapsel gewährleisten. Dies ist jedoch nicht immer gegeben. Beim Anwürgvorgang wird das hydrophobe Gleitmittel in Richtung der Stirnfläche der Anzündschnur verdrängt und dringt in deren offenes Ende ein, was die Anzündfähigkeit der Anzündschnur beeinträchtigt. Andererseits kann sich beim Anwürgen und auch aufgrund von langzeitig frei werdenden Spannungen zwischen der Stirnfläche der Anzündschnur und der Innenhülse, die die Primärladung enthält, ein Spalt bilden, der sich mit dem Gleitmittel füllt und somit eine Anzündbarriere darstellt.The seal between the sleeve containing the explosive charges and the ignition cord is problematic. The metallic sleeve with the very soft one applies and flexible ignition cord to connect waterproof and firm. According to the DE 30 10 067 C2 does this by a three-stage structure, namely by one dimensionally adapted to the ignition cord, a hydrophobic Lubricant and by repeatedly choking or constricting the sleeve, Hollow body and lighting cord. Such a seal or connection is said to Ensure long-term functionality of the detonator. However, this is not always given. During the strangling process, the hydrophobic lubricant becomes Displaces towards the face of the firing cord and penetrates its open End, which affects the ignitability of the ignition cord. On the other hand can occur during strangulation and also due to long-term release of tensions between the face of the ignition cord and the inner sleeve that the Contains primary charge, form a gap that fills with the lubricant and thus represents an ignition barrier.

Aufgabe der Erfindung ist es daher, die reproduzierbare Überzündung zwischen der Anzündschnur und der Primärladung zu gewährleisten und zwar über einen Zeitraum von > 10 Jahren. The object of the invention is therefore to reproducible over-ignition between to ensure the ignition cord and the primary charge and that over a Period of> 10 years.

Die Erfindung löst diese Aufgabe entsprechend den kennzeichnenden Merkmalen des Anspruchs 1.The invention solves this problem according to the characterizing features of claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen. Die unmittelbare Verbindung des Schrumpfschlauches mit der Anzündschnur einerseits und der Hülse andererseits mit der dazwischenliegenden Schicht aus thermoplastischen Kleber ist sowohl beim Schrumpfvorgang des Schrumpfschlauches als auch nach einer maximalen Lagerung spannungsfrei, d. h., die Anzündschnur liegt spaltfrei - ohne eine Zwischenschicht aus Kleber - an der Stirnseite der Innenhülse an. Gleichzeitig liegt die Wasserdichtigkeit vor, so daß insgesamt die Funktion der Sprengkapsel - auch nach langer Lagerzeit - reproduzierbar ist. Die wasserdichte und feste Verbindung von Anzündschnur und der Hülse ist kostengünstig zu fertigen, da keine Passungen und Gleitmittel bei der Montage erforderlich sind. Vielmehr ist der Schrumpfschlauch aufgrund eines Übermaßes problemlos in Position zu bringen und durch ein kurzzeitige, auf seine Länge bezogene Wärmezone an den genannten Teilen über den Kleber zu befestigen. Der Kleber liegt in der Form einer vollständigen Innenbeschichtung am Schrumpfschlauch vor.Advantageous developments of the invention can be found in the subclaims. The direct connection between the shrink tube and the ignition cord on the one hand and the sleeve, on the other hand, with the intermediate layer thermoplastic adhesive is both in the shrinking process of the shrink tube as well as after a maximum storage without tension, d. i.e., the ignition cord is free of gaps - without an intermediate layer of adhesive - on the front of the Inner sleeve. At the same time, the waterproofness is available, so that the overall Function of the detonator - even after a long storage period - is reproducible. The waterproof and firm connection of the ignition cord and the sleeve is inexpensive to be manufactured as no fits and lubricants are required during assembly are. Rather, the shrink tube is problem-free due to an oversize to position and by a short, related to its length Attach the heat zone to the parts mentioned using the adhesive. The glue is in the form of a complete inner coating on the shrink tube.

Der Schrumpfschlauch ist an einem Abschnitt der Zündschnur bundförmig aufgeschrumpft, wobei die Länge des geschrumpften Abschnitts etwa das 2,5- bis 3-fache des Durchmessers der Anzündschnur beträgt. Die Länge des auf die Hülse aufgeschrumpften Schrumpfschlauches beträgt das 1,3- bis 1,7-fache des Durchmessers der Anzündschnur. Dies gewährleistet in Verbindung mit dem Kleber eine mechanisch sichere und wasserdichte Verbindung. Radiale Relativbewegungen zwischen der Anzündschnur und dem Sprengkapselhalter werden durch den Schrumpfschlauch - der eine quasi elastische Kupplung darstellt - zunächst gedämpft und dann eliminiert, so daß die Klebeverbindung nicht tangiert ist.The shrink tube is shrunk onto a section of the fuse, the length of the shrunk portion being about 2.5 to 3 times of the diameter of the ignition cord. The length of the on the sleeve shrink-fit shrink tubing is 1.3 to 1.7 times the diameter the ignition cord. In combination with the adhesive, this guarantees a mechanically safe and waterproof connection. Radial relative movements between the igniter cord and the detonator holder Shrink tube - which is a quasi-elastic coupling - is initially damped and then eliminated so that the adhesive bond is not affected.

Der Schrumpfschlauch ist ein kostengünstiges und einfach zu handhabendes Bauelement, das in der o. g. Verwendungsform alle Forderungen auf Wasserdichtigkeit, Lagerbeständigkeit und Festigkeit erfüllt. The shrink tube is an inexpensive and easy-to-use component, that in the above Form of use all requirements for water resistance, Storage stability and strength met.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigt:

Fig. 1
eine Sprengkapsel im Längsschnitt mit Anzündschnur und
Fig. 2
einen Schrumpfschlauch mit einer damit zu verbindenden Hülse nach Fig. 1 im Längsschnitt und in prinzipieller Darstellung.
An embodiment of the invention is shown in the drawing. It shows:
Fig. 1
a detonator in longitudinal section with a fuse and
Fig. 2
a shrink tube with a sleeve to be connected to FIG. 1 in longitudinal section and in principle.

Eine Sprengkapsel 1 ist mit einer Anzündschnur 2 fest verbunden. Die Sprengkapsel 1 besteht aus einer Primärladung 3 in einer Innenhülse 4, einer Sekundärladung 5 in einer aus Aluminium bestehenden Hülse 6, einer Schutzkappe 7, aus einem mit der Schutzkappe 7 verschraubten Sprengkapselhalter 8 und aus einem Schrumpfschlauch 10.A detonator capsule 1 is firmly connected to an ignition cord 2. The detonator 1 consists of a primary charge 3 in an inner sleeve 4, a secondary charge 5 in an aluminum sleeve 6, a protective cap 7, with a the protective cap 7 screwed detonator holder 8 and from a shrink tube 10th

Der Schrumpfschlauch 10 ist in Fig. 2 im Ausgangszustand dargestellt. An seiner Innenfläche weist er eine sehr dünne Schicht aus einem thermoplastischen und hydrophoben Kleber 11 auf. Der Kleber 11 ist symbolisch dargestellt.The shrink tube 10 is shown in FIG. 2 in the initial state. At his Inside, it has a very thin layer of a thermoplastic and hydrophobic Glue 11 on. The adhesive 11 is shown symbolically.

Die Hülse 6 umfaßt die Sekundärladung 5, die Innenhülse 4 mit der Primärladung 3 und einen Teil der Anzündschnur 2. Der Außendurchmesser der Hülse 6 ist im Bereich der Ladungen 3,5 mit 14 bezeichnet.The sleeve 6 comprises the secondary charge 5, the inner sleeve 4 with the primary charge 3 and part of the ignition cord 2. The outer diameter of the sleeve 6 is in Range of charges 3.5 designated 14.

Die Anzündschnur 2 ist im Verbindungsabschnitt 16 der Hülse 6 mit geringem "Spiel" geführt.The ignition cord 2 is in the connecting section 16 of the sleeve 6 with little "Game" led.

An der Öffnung 15 der Hülse 6 weist diese über den Verbindungsabschnitt 16 einen Außendurchmesser 17 (Fig. 2) auf. Dieser ist gegenüber dem Außendurchmesser 14 etwa entsprechend der zweifachen Dicke 18 des Schrumpfschlauches 10 verkleinert.At the opening 15 of the sleeve 6, this has a connection portion 16 Outside diameter 17 (Fig. 2). This is compared to the outside diameter 14 approximately corresponding to twice the thickness 18 of the shrink tube 10 downsized.

Der Schrumpfschlauch 10 steht mit einem Kragen 19 (Fig. 1) eines Führungsabschnittes 22 etwas über den freien Rand 20 des Sprengkapselhalters 8 hinaus und dient als Knickschutz für die Anzündschnur 2.The shrink tube 10 stands with a collar 19 (FIG. 1) of a guide section 22 slightly beyond the free edge 20 of the detonator holder 8 and serves as kink protection for the ignition cord 2.

Die Länge des Verbindungsabschnittes 16 von Schrumpfschlauch 10 und Hülse 6 beträgt das 1,6-fache des Durchmessers 12 der Anzündschnur 2. Die Länge des Führungsabschnittes 22 des Schrumpfschlauches 10 beträgt das 2,7-fache der Anzündschnur 2 des Durchmessers 12.The length of the connecting section 16 of the shrink tube 10 and sleeve 6 is 1.6 times the diameter 12 of the ignition cord 2. The length of the Guide section 22 of the shrink tube 10 is 2.7 times the ignition cord 2 of diameter 12.

Ein Abstand 25 zwischen einer Stirnfläche 26 der Anzündschnur 2 und dem Verbindungsabschnitt 16 ist etwas größer als der zweifache Durchmesser 12 der Anzündschnur 2.A distance 25 between an end face 26 of the ignition cord 2 and the connecting section 16 is slightly larger than twice the diameter 12 of the ignition cord 2nd

Der Schrumpfschlauch 10 wird in einfacher Weise an der Hülse 6 und an der bereits in die Hülse 6 eingesteckten Anzündschnur 2 positioniert und dann zwecks Aufschrumpfens einer Wärmebehandlung ausgesetzt.The shrink tube 10 is easily on the sleeve 6 and on the already positioned in the sleeve 6 inserted ignition cord 2 and then for the purpose Shrinking exposed to heat treatment.

Durch die Abstände 16 und 25 wird erreicht, daß beim Abkühlen der aus Aluminium bestehenden Hülse 6 und die dadurch bedingte Verkürzung der Hülse 6 die Stirnfläche 26 der Anzündschnur 2 mit einer gewissen Vorspannung an der Innenhülse 4 anliegt, da der Schrumpfschlauch 10 die thermisch isolierte Anzündschnur 2 bereits im Abschnitt 22 befestigt. Die Anzündschnur 2 erfährt während der Wärmebehandlung des Schrumpfschlauches 10 keine Längenänderung - also im Gegensatz zu der Hülse 6, die sich während der Wärmebehandlung bezüglich des Abschnittes 16 mit dem umfangseitig anliegenden Schrumpfschlauch 10 und dem daran sich anschließenden Abschnitt 25 ausdehnt. Während der Wärmebehandlung des Schrumpfschlauches 10 wird auf die Anzündschnur 2 in Richtung eines Pfeiles 28 ein Druck ausgeübt, so daß schon während dieser Phase für Spaltfreiheit zwischen der Stirnfläche 26 und der Innenhülse 4 gesorgt ist.The distances 16 and 25 ensure that when cooling the aluminum existing sleeve 6 and the resulting shortening of the sleeve 6 the End face 26 of the ignition cord 2 with a certain preload on the inner sleeve 4 is present because the shrink tube 10 is the thermally insulated ignition cord 2 already attached in section 22. The ignition cord 2 experiences during the heat treatment the shrink tube 10 no change in length - so in contrast to the sleeve 6, which during the heat treatment with respect to the section 16 with the circumferential shrink tube 10 and the attached subsequent section 25 expands. During the heat treatment of the Shrink tube 10 is placed on the ignition cord 2 in the direction of an arrow 28 exerted pressure so that during this phase there was no gap between the end face 26 and the inner sleeve 4 is taken care of.

Der Schrumpfungsprozeß des Schrumpfschlauches 10 bewirkt in Verbindung mit dem Kleber 11 eine wasserdichte und feste Verbindung von Anzündschnur 2 und Hülse 6, wobei die Stirnfläche 26 spaltfrei und ohne Beeinträchtigung durch den Kleber 11 also direkt an der Innenhülse 4 anliegt.The shrinking process of the shrink tube 10 causes in connection with the adhesive 11 a waterproof and firm connection of the ignition cord 2 and Sleeve 6, the end face 26 without gaps and without being affected by the Adhesive 11 therefore bears directly against the inner sleeve 4.

Ein, gegenüber dem Schrumpfschlauch 10 im Führungsabschnitt 22 geringfügig größerer Innendurchmesser 23 begrenzt die radiale Bewegungsfreiheit der Anzündschnur 2. Der Spalt 24 beträgt etwa 0,5 mm. Eine mechanische radiale Überbeanspruchung ist in diesem Flugabschnitt 22 dadurch verhindert, so daß die Klebeverbindung unter allen Umständen bestehen bleibt.A, slightly in relation to the shrink tube 10 in the guide section 22 Larger inner diameter 23 limits the radial freedom of movement of the ignition cord 2. The gap 24 is approximately 0.5 mm. A mechanical radial overstress is prevented in this flight section 22, so that the adhesive connection remains in all circumstances.

Claims (8)

  1. Detonator (1) with fuse (2), the detonator (1) comprising a metal casing (6) containing explosive charges (3, 5) and a housing which consists of a detonator holder (8) screwed together with a protective cover (7),
    and the fuse (2) being sealed off from the detonator holder (8) by a sealing sleeve (10) with a hydrophobic layer (11) against the casing (6),
    characterized in that
    the sealing sleeve is a shrunk-on tube (10) with an inner layer made of a thermoplastic adhesive (11), the shrunk-on tube (10), in the manner of an elastic coupling, containing a rigid portion (16) at the opening end of the casing (6) and a guide portion (22) of the fuse (2) which is slightly movable in radial direction at the holder end.
  2. Detonator according to Claim 1,
    characterized in that
    the casing (6) has at its opening (15) as regards the portion (16) a smaller external diameter (17) than the external diameter (14) of the casing (6) carrying the explosive charges (3, 5).
  3. Detonator according to Claim 1,
    characterized in that
    the shrunk-on tube (10) extends at least as far as the free edge (20) of the detonator holder (8).
  4. Detonator according to Claim 1,
    characterized in that
    the rigid portion (16) of the shrunk-on tube (10) is approximately 1.3 to 1.7 times the diameter (12) of the shrunk-on tube (10).
  5. Detonator according to Claim 1,
    characterized in that
    the guide portion (22) of the shrunk-on tube (10) is approximately 2.5 to 3 times the diameter (12) of the shrunk-on tube (10).
  6. Detonator according to Claims 1 or 3,
    characterized in that
    the shrunk-on tube (10) has a collar (19) which projects beyond the edge (20) of the detonator holder (8).
  7. Detonator according to Claim 1,
    characterized in that,
    between the rigid portion (16) and the front face (26) of the fuse (2), there is a distance (25) which is at least twice the diameter (12) of the fuse (2).
  8. Detonator according to Claim 1,
    characterized in that,
    in the guide portion (22), the fuse (2) connected with the shrunk-on tube (10) is capable of radial movement due to a small lateral gap (24).
EP96119581A 1996-01-13 1996-12-06 Detonator with a shock tube initiator Expired - Lifetime EP0784041B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19601094A DE19601094C2 (en) 1996-01-13 1996-01-13 Detonator with detonating cord
DE19601094 1996-01-13

Publications (2)

Publication Number Publication Date
EP0784041A1 EP0784041A1 (en) 1997-07-16
EP0784041B1 true EP0784041B1 (en) 1999-07-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96119581A Expired - Lifetime EP0784041B1 (en) 1996-01-13 1996-12-06 Detonator with a shock tube initiator

Country Status (3)

Country Link
EP (1) EP0784041B1 (en)
AT (1) ATE182573T1 (en)
DE (2) DE19601094C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006037552B4 (en) 2006-08-10 2009-11-12 Atc Establishment Stranded ignition means, method and apparatus for molding a sealing element to a string ignition means, and blasting system
CN109556472A (en) * 2019-01-14 2019-04-02 新疆大学 Improvised explosive priming device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA729100B (en) * 1972-01-05 1974-01-30 Nitro Nobel Ab Detonating cap
DE2814598A1 (en) * 1978-04-05 1979-10-18 Sobbe Friedrich Wilhelm Detonating capsule with fuse cord - has amplifier charge between end of fuse and initial detonator charge
DE2814581A1 (en) 1978-04-05 1979-10-18 Sobbe Friedrich Wilhelm Military detonating capsule with fuse cord - esp. for underwater charges, has hollow block fitted around end of cord to improve watertightness
SE429334B (en) * 1978-04-07 1983-08-29 Nitro Nobel Ab DEVICE AT A LOW ENERGY STUB
DE3010067A1 (en) * 1980-03-15 1981-10-15 Friedrich Wilhelm Dipl.-Kfm. 4600 Dortmund Sobbe Fuse and detonator with pressure resistant watertight joint - made by lubricated sleeve between fuse and capsule
DE3123250A1 (en) * 1981-06-11 1983-01-05 Friedrich Wilhelm Dipl.-Kfm. 4600 Dortmund Sobbe Detonating-fuse closure
DE3143899A1 (en) * 1981-11-05 1983-06-23 Dynamit Nobel Ag, 5210 Troisdorf Booster charge
DE3447088A1 (en) * 1984-12-22 1986-07-03 Dynamit Nobel Ag, 5210 Troisdorf Detonating or priming device
DE3520490A1 (en) * 1985-04-10 1986-10-16 Friedrich-Wilhelm Dipl.-Kaufm. 4600 Dortmund Sobbe Device for joining detonating cord and detonator
NO905331L (en) * 1990-01-30 1991-07-31 Ireco Inc Delay detonator.
US5009163A (en) * 1990-04-19 1991-04-23 The Ensign-Bickford Company Non-electric signal transmission device connection, method and apparatus therefor
DE9204340U1 (en) * 1992-03-31 1992-06-25 Sobbe, Friedrich-Wilhelm, Dipl.-Kaufm., 4600 Dortmund, De

Also Published As

Publication number Publication date
EP0784041A1 (en) 1997-07-16
DE19601094C2 (en) 1998-04-16
DE59602541D1 (en) 1999-09-02
DE19601094A1 (en) 1997-07-17
ATE182573T1 (en) 1999-08-15

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