EP2065672A2 - Miniaturised power element - Google Patents

Miniaturised power element Download PDF

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Publication number
EP2065672A2
EP2065672A2 EP08020046A EP08020046A EP2065672A2 EP 2065672 A2 EP2065672 A2 EP 2065672A2 EP 08020046 A EP08020046 A EP 08020046A EP 08020046 A EP08020046 A EP 08020046A EP 2065672 A2 EP2065672 A2 EP 2065672A2
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EP
European Patent Office
Prior art keywords
working
miniaturized
cap
side wall
miniaturized force
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
EP08020046A
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German (de)
French (fr)
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EP2065672A3 (en
EP2065672B1 (en
Inventor
Karl Rudolf
Bernd Dr. Eigenmann
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 BGT Defence GmbH and Co KG
Original Assignee
Diehl BGT Defence GmbH 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.)
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Publication date
Application filed by Diehl BGT Defence GmbH and Co KG filed Critical Diehl BGT Defence GmbH and Co KG
Publication of EP2065672A2 publication Critical patent/EP2065672A2/en
Publication of EP2065672A3 publication Critical patent/EP2065672A3/en
Application granted granted Critical
Publication of EP2065672B1 publication Critical patent/EP2065672B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F42B3/006—Explosive bolts; Explosive actuators
    • 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
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
    • 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
    • F42B3/125—Bridge initiators characterised by the configuration of the bridge initiator case
    • F42B3/127—Bridge initiators characterised by the configuration of the bridge initiator case the case having burst direction defining elements

Definitions

  • the invention relates to a force element according to the preamble of claim 1.
  • Known force elements function by means of a pyrotechnic charge which is ignited, burns off, thereby developing gas and other components which expand and effect.
  • the working element is, for example, designed as a piston.
  • the components used for such known force elements are usually complex in nature and usually produced by turning technology.
  • the seal between the guide element and the working element is realized by fits and / or by sealing elements.
  • fits require a corresponding production cost. This affects the manufacturing costs.
  • Force elements sealed by sealing elements or by means of lacquering have the defect that they are not hermetically sealed with regard to possible environmental flows during storage.
  • Another shortcoming of such known power elements is their relatively large volume of construction.
  • the pyrotechnic propellants of known power elements used have relatively large masses and burn to form slags and smoke, whereby adjacent mechanical components can be disturbed.
  • the present invention seeks to provide a force element of the type mentioned, which is simple and inexpensive small volume produced, ie miniaturized, and does not have the above-mentioned deficiencies.
  • the cap-like working element is expediently formed by a sheet-metal part produced by drawing technology.
  • the guide element for the working element is formed by a sheet-metal part produced by drawing.
  • the cap-shaped working element has a thin cylindrical side wall, so that the working element reliably seals against the cylindrical guide element in a simple manner by the thin side wall of the working element is expanded by the pressure generated by the explosive in the charge space and on the inside of the guide element sealing tight and rubbing comes to rest, so that own sealing elements are unnecessary. By the said friction bouncing of the working element is prevented upon reaching the end position in an advantageous manner.
  • the cap-like working element may additionally have another, for example.
  • Rotationally manufactured component such as a piercing needle o. The like. Have.
  • the guide element of the miniaturized force element according to the invention may be formed with a beading edge which determines the end of the working path of the working element, so that no parts are advantageously ejected at the end of the working path.
  • the explosive-containing charge space of the miniaturized force element according to the invention is hermetically sealed in the rest, ie storage condition. This is achieved in that the sleeve of the end element of the miniaturized force element, the thin cylindrical side wall of the working element and the cylinder sleeve of the guide element are sealingly welded together. This can be a laser welding.
  • the pressure generated in the charge space ruptures the predetermined breaking point provided in the thin side wall of the working element, so that the originally fixed working element becomes free and can move in the guide element to the end of its working travel.
  • the charge space may have an additional element to reduce the charge volume.
  • This additional element may, for example, be an inert material.
  • the charging of the charge space does not consist of a pyrotechnic charge but of a primary or secondary explosive, which generates substantially gas and negligible or no metal compounds during its conversion.
  • the explosive is advantageously phlegmatized by additives and processing technology so far that it does not detonate under the given conditions but merely burns off. In this way, a sufficiently shock-wave acceleration of the cap-like working element is achieved in the guide element.
  • the minimization of the charge also advantageously allows an increase in the safety of the force element according to the invention.
  • the figure shows a longitudinal section of an embodiment of the miniaturized force element 10, which has a guide element 12 for a working element 14.
  • the guide element 12 is formed by a sheet-metal part produced by drawing; it is designed as a cylindrical sleeve 16 which is formed at its one end with an outer peripheral flange 18 and at its second end remote therefrom with a flared edge 20 inside.
  • the beading 20 determines the end of the working path of the working element 14th
  • the working element 14 is formed by a sheet-metal part produced by way of drawing, it has an end wall 22 and a cylindrical side wall 24 which is connected in one piece to this material.
  • the cap-like work element 14 is combined with a closure element 26.
  • the terminating element 26 has an insulating body 28, through which two connecting elements 30, which are spaced apart from one another, extend through which are contacted with a firing bridge element 32.
  • the ignition bridge element 32 is attached to the inner end face 34 of the insulating material 28.
  • the insulating body 28 of the closing element 26 is enclosed by a sleeve 36.
  • the sleeve 36, the cylindrical side wall 24 of the cap-like working element 14 and the cylinder sleeve 16 of the guide element 12 are sealingly welded together on the side of the miniaturized force element 10, on which the connection elements 30 protrude. This circumferential weld is designated by the reference numeral 38.
  • a charge space 40 is determined, which is provided for an explosive 42.
  • connection elements 30 If an ignition voltage is applied to the connection elements 30, the ignition bridge element 32 melts, as a result of which the explosive 42 is ignited. The generated gas d. H. Internal pressure causes a circumferential predetermined breaking point 44 in the thin cylindrical side wall 24 of the working element 14 tears open and the working element 14 in the guide member 12 is free.
  • the circumferential predetermined breaking point 44 in the cylindrical side wall 24 of the cap-like working element 14 is formed, for example, as a circumferential notch or groove.
  • the working travel of the working element 14 can be, for example, 3 mm and the longitudinal dimension of the guide element 12 can be 4 mm, for example.
  • the outer diameter of the force element 10 may, for. B. 2.3 mm.
  • the explosive 42 in the cargo space 40 is preferably a phlegmatized explosive having a mass of ⁇ 1 mg.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The element (10) has a guide element (12) in which a cap-like working element (14) is provided. A closing element (26) is provided with an ignition bridge element (32). The closing element and the working element define a charge area (40). The closing element, the working element and the guide element are interconnected and sealed up with each other. A thin side wall (24) of the working element is provided with a break point (44). An explosive agent (42) is provided in the charge area. The working element is formed by a pull-technically manufactured sheet metal part.

Description

Die Erfindung betrifft ein Kraftelement gemäß dem Oberbegriff des Anspruches 1.The invention relates to a force element according to the preamble of claim 1.

Bekannte Kraftelemente funktionieren mit Hilfe eines pyrotechnischen Satzes, der gezündet wird, abbrennt und dabei Gas und andere Komponenten entwickelt, die expandieren und ein Wirk- d. h. Arbeitselement verschieben. Das Arbeitselement ist bspw. als Kolben ausgebildet.Known force elements function by means of a pyrotechnic charge which is ignited, burns off, thereby developing gas and other components which expand and effect. H. Move work item. The working element is, for example, designed as a piston.

Die zur Anwendung gelangenden Bauteile solcher bekannter Kraftelemente sind meist komplexer Natur und üblicherweise drehtechnisch hergestellt. Die Abdichtung zwischen dem Führungselement und dem Arbeitselement ist durch Passungen und/oder durch Dichtungselemente realisiert. Passungen bedingen jedoch einen entsprechenden Herstellungsaufwand. Das wirkt sich auf die Herstellungskosten aus. Durch Dichtungselemente oder durch Ablackieren verschlossene Kraftelemente weisen den Mangel auf, dass sie hinsichtlich möglicher Umweltenflüsse bei der Lagerung nicht hermetisch dicht sind. Ein weiterer Mangel derartiger bekannter Kraftelemente ist ihr relativ großes Bauvolumen. Die verwendeten pyrotechnischen Treibsätze bekannter Kraftelemente weisen relativ große Massen auf und verbrennen unter Bildung von Schlacken und Schmauch, wodurch benachbarte mechanische Komponenten gestört werden können.The components used for such known force elements are usually complex in nature and usually produced by turning technology. The seal between the guide element and the working element is realized by fits and / or by sealing elements. However, fits require a corresponding production cost. This affects the manufacturing costs. Force elements sealed by sealing elements or by means of lacquering have the defect that they are not hermetically sealed with regard to possible environmental flows during storage. Another shortcoming of such known power elements is their relatively large volume of construction. The pyrotechnic propellants of known power elements used have relatively large masses and burn to form slags and smoke, whereby adjacent mechanical components can be disturbed.

In Kenntnis dieser Gegebenheiten liegt der Erfindung die Aufgabe zugrunde, ein Kraftelement der eingangs genannten Art zu schaffen, das einfach und preisgünstig kleinvolumig herstellbar, d. h. miniaturisiert ist ,und die oben genannten Mängel nicht aufweist.In view of these circumstances, the present invention seeks to provide a force element of the type mentioned, which is simple and inexpensive small volume produced, ie miniaturized, and does not have the above-mentioned deficiencies.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst. Bevorzugte Aus- bzw. Weiterbildungen des erfindungsgemäßen miniaturisierten Kraftelementes sind in den Unteransprüchen gekennzeichnet.This object is achieved by the features of claim 1. Preferred embodiments or further developments of the miniaturized force element according to the invention are characterized in the subclaims.

Bei dem erfindungsgemäßen miniaturisierten Kraftelement ist zweckmäßigerweise zumindest das kappenartige Arbeitselement von einem ziehtechnisch hergestellten Blechteil gebildet. Zweckmäßigerweise ist auch das Führungselement für das Arbeitselement von einem ziehtechnisch hergestellten Blechteil gebildet. Von Wichtigkeit ist insbesondere, dass das kappenartig ausgebildete Arbeitselement eine dünne zylindrische Seitenwandung aufweist, so dass das Arbeitselement gegen das zylindrische Führungselement in einfacher Weise zuverlässig abdichtet, indem die dünne Seitenwandung des Arbeitselementes durch den vom Sprengstoff im Ladungsraum generierten Druck expandiert wird und an der Innenseite des Führungselementes abdichtend eng und reibend zur Anlage kommt, so dass eigene Dichtungselemente entbehrlich sind. Durch die besagte Reibung wird in vorteilhafter Weise ein Prellen des Arbeitselementes bei Erreichen der Endposition verhindert.In the case of the miniaturized force element according to the invention, at least the cap-like working element is expediently formed by a sheet-metal part produced by drawing technology. Conveniently, the guide element for the working element is formed by a sheet-metal part produced by drawing. Of particular importance is that the cap-shaped working element has a thin cylindrical side wall, so that the working element reliably seals against the cylindrical guide element in a simple manner by the thin side wall of the working element is expanded by the pressure generated by the explosive in the charge space and on the inside of the guide element sealing tight and rubbing comes to rest, so that own sealing elements are unnecessary. By the said friction bouncing of the working element is prevented upon reaching the end position in an advantageous manner.

Das in vorteilhafter Weise von einem dünnwandigen Blechteil gebildete kappenartige Arbeitselement und das in vorteilhafter Weise ebenfalls von einem Blechteil gebildete Führungselement ermöglichen eine kostengünstige Herstellung und kleine Abmessungen des erfindungsgemäßen Kraftelementes.The advantageously formed by a thin-walled sheet metal part cap-like working element and advantageously also formed by a sheet metal part guide element allow cost-effective production and small dimensions of the force element according to the invention.

Das kappenartige Arbeitselement kann zusätzlich ein weiteres, bspw. drehtechnisch hergestelltes Bauteil, wie eine Anstechnadel o. dgl. aufweisen.The cap-like working element may additionally have another, for example. Rotationally manufactured component, such as a piercing needle o. The like. Have.

Das Führungselement des erfindungsgemäßen miniaturisierten Kraftelementes kann mit einem das Ende des Arbeitsweges des Arbeitselementes bestimmenden Bördelrand ausgebildet sein, so dass am Ende des Arbeitsweges in vorteilhafter Weise keine Teile weggeschleudert werden.The guide element of the miniaturized force element according to the invention may be formed with a beading edge which determines the end of the working path of the working element, so that no parts are advantageously ejected at the end of the working path.

Der einen Sprengstoff enthaltende Ladungsraum des erfindungsgemäßen miniaturisierten Kraftelementes ist im Ruhe- d. h. Lagerzustand hermetisch dicht verschlossen. Das wird dadurch erreicht, dass die Hülse des Abschlusselementes des miniaturisierten Kraftelementes, die dünne zylindrische Seitenwandung des Arbeitselementes und die Zylinderhülse des Führungselementes miteinander abdichtend verschweißt sind. Hierbei kann es sich um eine Laserschweißung handeln.The explosive-containing charge space of the miniaturized force element according to the invention is hermetically sealed in the rest, ie storage condition. This is achieved in that the sleeve of the end element of the miniaturized force element, the thin cylindrical side wall of the working element and the cylinder sleeve of the guide element are sealingly welded together. This can be a laser welding.

Bei der Zündung des im Ladungsraum befindlichen Sprengstoffes reißt der im Ladungsraum erzeugte Druck die in der dünnen Seitenwandung des Arbeitselementes vorgesehene Sollbruchstelle auf, so dass das ursprünglich fixierte Arbeitselement frei wird und sich im Führungselement bis zum Ende seines Arbeitsweges bewegen kann.When the explosive in the charge space is ignited, the pressure generated in the charge space ruptures the predetermined breaking point provided in the thin side wall of the working element, so that the originally fixed working element becomes free and can move in the guide element to the end of its working travel.

Der Ladungsraum kann zur Verringerung des Ladungsvolumens ein Zusatzelement aufweisen. Bei diesem Zusatzelement kann es sich bspw. um ein Inertmaterial handeln.The charge space may have an additional element to reduce the charge volume. This additional element may, for example, be an inert material.

Bei dem erfindungsgemäßen miniaturisierten Kraftelement besteht die Aufladung des Ladungsraumes nicht aus einem pyrotechnischen Satz sondern aus einem Primär- oder Sekundär-Sprengstoff, der bei seiner Umsetzung im Wesentlichen Gas und vernachlässigbar wenig oder keine Metallverbindungen erzeugt. Der Sprengstoff ist in vorteilhafter Weise durch Zusätze und verarbeitungstechnisch so weit phlegmatisiert, dass er unter den gegebenen Bedingungen nicht detoniert sondern lediglich abbrennt. Auf diese Weise wird eine hinreichend stoßwellenarme Beschleunigung des kappenartigen Arbeitselementes im Führungselement erreicht.In the miniaturized force element according to the invention, the charging of the charge space does not consist of a pyrotechnic charge but of a primary or secondary explosive, which generates substantially gas and negligible or no metal compounds during its conversion. The explosive is advantageously phlegmatized by additives and processing technology so far that it does not detonate under the given conditions but merely burns off. In this way, a sufficiently shock-wave acceleration of the cap-like working element is achieved in the guide element.

Die Minimierung der Aufladung erlaubt in vorteilhafter Weise außerdem eine Erhöhung der Sicherheit des erfindungsgemäßen Kraftelementes.The minimization of the charge also advantageously allows an increase in the safety of the force element according to the invention.

Weitere Einzelheiten, Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung eines in der Zeichnung vergrößert dargestellten Ausführungsbeispiels des erfindungsgemäßen miniaturisierten Kraftelementes.Further details, features and advantages will become apparent from the following description of an enlarged embodiment of the inventive miniaturized force element shown in the drawing.

Die Figur zeigt in einer Längsschnittdarstellung eine Ausbildung des miniaturisierten Kraftelementes 10, das ein Führungselement 12 für ein Arbeitselement 14 aufweist.The figure shows a longitudinal section of an embodiment of the miniaturized force element 10, which has a guide element 12 for a working element 14.

Das Führungselement 12 ist von einem ziehtechnisch hergestellten Blechteil gebildet; es ist als Zylinderhülse 16 ausgebildet, die an ihrem einen Ende mit einem außen umlaufenden Flansch 18 und an ihrem davon entfernten zweiten Ende innen mit einem Bördelrand 20 ausgebildet ist. Der Bördelrand 20 bestimmt das Ende des Arbeitsweges des Arbeitselementes 14.The guide element 12 is formed by a sheet-metal part produced by drawing; it is designed as a cylindrical sleeve 16 which is formed at its one end with an outer peripheral flange 18 and at its second end remote therefrom with a flared edge 20 inside. The beading 20 determines the end of the working path of the working element 14th

Das Arbeitselement 14 ist von einem ziehtechnisch hergestellten Blechteil gebildet, es weist eine Stirnwand 22 und eine mit dieser materialeinstückig verbundene zylindrische Seitenwandung 24 auf.The working element 14 is formed by a sheet-metal part produced by way of drawing, it has an end wall 22 and a cylindrical side wall 24 which is connected in one piece to this material.

Das kappenartige Arbeitselement 14 ist mit einem Abschlusselement 26 kombiniert. Das Abschlusselement 26 weist einen Isolierstoffkörper 28 auf, durch welchen sich voneinander beabstandet zwei Anschlusselemente 30 hindurch erstrecken, die mit einem Zündbrückenelement 32 kontaktiert sind. Das Zündbrückenelement 32 ist an der Innenstirnfläche 34 des Isolierstoffkörpers 28 angebracht.The cap-like work element 14 is combined with a closure element 26. The terminating element 26 has an insulating body 28, through which two connecting elements 30, which are spaced apart from one another, extend through which are contacted with a firing bridge element 32. The ignition bridge element 32 is attached to the inner end face 34 of the insulating material 28.

Der Isolierstoffkörper 28 des Abschlusselementes 26 ist von einer Hülse 36 umschlossen. Die Hülse 36, die zylindrische Seitenwandung 24 des kappenartigen Arbeitselementes 14 und die Zylinderhülse 16 des Führungselementes 12 sind an der Seite des miniaturisierten Kraftelementes 10, an der die Anschlusselemente 30 herausragen, miteinander abdichtend verschweißt. Diese umlaufende Verschweißung ist mit der Bezugsziffer 38 bezeichnet.The insulating body 28 of the closing element 26 is enclosed by a sleeve 36. The sleeve 36, the cylindrical side wall 24 of the cap-like working element 14 and the cylinder sleeve 16 of the guide element 12 are sealingly welded together on the side of the miniaturized force element 10, on which the connection elements 30 protrude. This circumferential weld is designated by the reference numeral 38.

Zwischen der Innenstirnfläche 34 des Abschlusselementes 26 und der Stirnwand 22 des kappenartigen Arbeitselementes 14 ist ein Ladungsraum 40 bestimmt, der für einen Sprengstoff 42 vorgesehen ist.Between the inner end face 34 of the closing element 26 and the end wall 22 of the cap-like working element 14, a charge space 40 is determined, which is provided for an explosive 42.

Wird an die Anschlusselemente 30 eine Zündspannung angelegt, so schmilzt das Zündbrückenelement 32, wodurch der Sprengstoff 42 gezündet wird. Der dabei erzeugte Gas- d. h. Innendruck bewirkt, dass eine umlaufende Sollbruchstelle 44 in der dünnen zylindrischen Seitenwandung 24 des Arbeitselementes 14 aufreißt und das Arbeitselement 14 im Führungselement 12 frei wird.If an ignition voltage is applied to the connection elements 30, the ignition bridge element 32 melts, as a result of which the explosive 42 is ignited. The generated gas d. H. Internal pressure causes a circumferential predetermined breaking point 44 in the thin cylindrical side wall 24 of the working element 14 tears open and the working element 14 in the guide member 12 is free.

Die umlaufende Sollbruchstelle 44 in der zylindrischen Seitenwandung 24 des kappenartigen Arbeitselementes 14 ist bspw. als umlaufende Kerbe oder Rille ausgebildet.The circumferential predetermined breaking point 44 in the cylindrical side wall 24 of the cap-like working element 14 is formed, for example, as a circumferential notch or groove.

Bei dem erfindungsgemäßen miniaturisierten Kraftelement 10 kann der Arbeitsweg des Arbeitselementes 14 bspw. 3 mm und die Längsabmessung des Führungselementes 12 bspw. 4 mm betragen. Der Außendurchmesser des Kraftelementes 10 kann z. B. 2,3 mm betragen.In the case of the miniaturized force element 10 according to the invention, the working travel of the working element 14 can be, for example, 3 mm and the longitudinal dimension of the guide element 12 can be 4 mm, for example. The outer diameter of the force element 10 may, for. B. 2.3 mm.

Bei dem Sprengstoff 42 im Ladungsraum 40 handelt es sich vorzugsweise um einen phlegmatisierten Explosivstoff mit einer Masse von ≤ 1 mg.The explosive 42 in the cargo space 40 is preferably a phlegmatized explosive having a mass of ≤ 1 mg.

Die zuletzt angegebenen Werte sollen nur die Größenverhältnisse des erfindungsgemäßen miniaturisierten Kraftelementes 10 verdeutlichen; selbstverständlich sind auch andere Abmessungen und Sprengstoff-Massen möglich.The last-indicated values should only clarify the size relationships of the miniaturized force element 10 according to the invention; Of course, other dimensions and explosive masses are possible.

Bezugsziffernliste:List of reference numerals:

1010
Miniaturisiertes KraftelementMiniaturized force element
1212
Führungselement (von 10 für 14)Guide element (from 10 to 14)
1414
Arbeitselement (von 10 in 12)Work item (from 10 to 12)
1616
Zylinderhülse (von 12)Cylinder sleeve (from 12)
1818
Umlaufender Flansch (von 16)Circumferential flange (from 16)
2020
Bördelrand (von 16)Beading edge (from 16)
2222
Stirnwand (von 14)Front wall (from 14)
2424
Zylindrische Seitenwandung (von 14)Cylindrical side wall (from 14)
2626
Abschlusselement (von 10 in 14)Closing element (from 10 to 14)
2828
Isolierstoffkörper (von 26 für 30 und 32)Insulating body (from 26 for 30 and 32)
3030
Anschlusselemente (von 26 für 32)Connection elements (from 26 to 32)
3232
Zündbrückenelement (an 34)Ignition bridge element (at 34)
3434
Innenstirnfläche (von 28)Inner face (from 28)
3636
Hülse (an 28)Sleeve (at 28)
3838
Verschweißung (zwischen 36, 24 und 16)Welding (between 36, 24 and 16)
4040
Ladungsraum (zwischen 34 und 22 für 42)Cargo space (between 34 and 22 for 42)
4242
Sprengstoff (in 40)Explosives (in 40)
4444
Sollbruchstelle (in 24)Breaking point (in 24)

Claims (11)

Miniaturisiertes Kraftelement (10), mit einem Führungselement (12), in dem ein Arbeitselement (14) vorgesehen ist, und mit einem Abschlusselement (26), das eine Zündeinrichtung (32) aufweist, wobei das Abschlusselement (26) und das Arbeitselement (14) einen Ladungsraum (40) bestimmen,
dadurch gekennzeichnet,
dass das Arbeitselement (14) kappenartig mit einer dünnen Seitenwandung (24) ausgebildet ist, dass das Abschlusselement (26), das Arbeitselement (14) und das Führungselement (14) miteinander abdichtend verbunden sind, dass die dünne Seitenwandung (24) des Arbeitselementes (14) eine Sollbruchstelle (44) aufweist, und dass im Ladungsraum (40) ein Sprengstoff (42) vorgesehen ist.Miniaturized power element (10), comprising a guide element (12) in which a working element (14) is provided, and a terminating element (26) having an ignition device (32), wherein the terminating element (26) and the working element (14 ) determine a charge space (40),
characterized,
in that the working element (14) is designed in the manner of a cap with a thin side wall (24) such that the closing element (26), the working element (14) and the guide element (14) are sealingly connected to one another, that the thin side wall (24) of the working element (24) 14) has a predetermined breaking point (44), and in that an explosive (42) is provided in the charge space (40). Miniaturisiertes Kraftelement (10) nach Anspruch 1,
dadurch gekennzeichnet,
dass das kappenartige Arbeitselement (14) von einem ziehtechnisch hergestellten Blechteil gebildet ist.Miniaturized force element (10) according to claim 1,
characterized,
that the cap-like working element (14) is formed by a sheet-metal part produced by way of drawing. Miniaturisiertes Kraftelement (10) nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass das kappenartige Arbeitselement (14) eine Stirnwand (22) und eine zylindrische Seitenwandung (24) aufweist.Miniaturized force element (10) according to claim 1 or 2,
characterized,
in that the cap-like working element (14) has an end wall (22) and a cylindrical side wall (24). Miniaturisiertes Kraftelement (10) nach Anspruch 1,
dadurch gekennzeichnet,
dass auch das Führungselement (12) von einem ziehtechnisch hergestellten Blechteil gebildet ist.Miniaturized force element (10) according to claim 1,
characterized,
that the guide element (12) is formed by a sheet-metal part produced by drawing. Miniaturisiertes Kraftelement (10) nach Anspruch 4,
dadurch gekennzeichnet,
dass das Führungselement (12) als Zylinderhülse (16) ausgebildet ist, die an ihrem einen Ende mit einem außen umlaufenden Flansch (18) und an ihrem davon entfernten zweiten Ende mit einem das Ende des Arbeitsweges des Arbeitselementes (14) bestimmenden Bördelrand (20) ausgebildet ist.Miniaturized force element (10) according to claim 4,
characterized,
in that the guide element (12) is designed as a cylinder sleeve (16) which has at one end an outer peripheral flange (18) and at its second end remote therefrom with a bead (20) which determines the end of the working travel of the working element (14). is trained. Miniaturisiertes Kraftelement (10) nach Anspruch 1,
dadurch gekennzeichnet,
dass das Abschlusselement (26) einen in einer Hülse (36) fixierten Isolierstoffkörper (28) mit einer Innenstirnfläche (34) aufweist, wobei sich durch den Isolierstoffkörper (28) voneinander beabstandet Anschlusselemente (30) erstrecken, die mit einem an der Innenstirnfläche (34) des Isolierstoffkörpers (28) angebrachten Zündbrückenelement (32) kontaktiert sind.Miniaturized force element (10) according to claim 1,
characterized,
in that the terminating element (26) has an insulating body (28) fixed in a sleeve (36) with an inner end face (34), connecting elements (30) being spaced apart from one another by the insulating body (28), which are connected to the inner end face (34 ) of the insulating material (28) mounted ignition bridge element (32) are contacted. Miniaturisiertes Kraftelement (10) nach Anspruch 5 und 6,
dadurch gekennzeichnet,
dass die Hülse (36) des Abschlusselementes (26), die dünne zylindrische Seitenwandung (24) des kappenartigen Arbeitselementes (14), und die Zylinderhülse (16) des Führungselementes (12) an dem Ende des miniaturisierten Kraftelementes(10), an dem die Anschlusselemente (30) herausragen, miteinander abdichtend verschweißt sind.Miniaturized force element (10) according to claim 5 and 6,
characterized,
that the sleeve (36) of the end element (26), the thin cylindrical side wall (24) of the cap-like working element (14), and the cylinder sleeve (16) of the guide element (12) at the end of the miniaturized force element (10) on which Protruding connecting elements (30) are welded together sealingly. Miniaturisiertes Kraftelement (10) nach Anspruch 7,
dadurch gekennzeichnet,
dass die in der dünnen zylindrischen Seitenwandung (24) des kappenartigen Arbeitselementes (14) vorgesehene Sollbruchstelle (44) von einer Kerbe, einer Rille, von der Verschweißung (36) selbst, oder von deren Wärmeeinflusszone gebildet ist.Miniaturized force element (10) according to claim 7,
characterized,
in that the predetermined breaking point (44) provided in the thin cylindrical side wall (24) of the cap-like working element (14) is formed by a notch, a groove, by the weld (36) itself or by its heat-affected zone. Miniaturisiertes Kraftelement (10) nach Anspruch 1,
dadurch gekennzeichnet,
dass der den Sprengstoff (42) enthaltende Ladungsraum (40) zur Verringerung des Ladungsvolumens ein Zusatzelement aufweist.Miniaturized force element (10) according to claim 1,
characterized,
in that the charge space (40) containing the explosive (42) has an additional element for reducing the charge volume. Miniaturisiertes Kraftelement (10) nach Anspruch 1,
dadurch gekennzeichnet,
dass der im Ladungsraum (40) vorgesehene Sprengstoff (42) ein Primär- oder Sekundär-Sprengstoff ist.Miniaturized force element (10) according to claim 1,
characterized,
in that the cargo space (40) provided explosive (42) is a primary or secondary explosives. Miniaturisiertes Kraftelement (10) nach Anspruch 10,
dadurch gekennzeichnet,
dass der Sprengstoff (42) durch Zusätze und verarbeitungstechnisch phlegmatisiert ist.Miniaturized force element (10) according to claim 10,
characterized,
that the explosive (42) is phlegmatized by additives and processing technology.
EP20080020046 2007-11-29 2008-11-18 Miniaturised power element Not-in-force EP2065672B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710057551 DE102007057551B4 (en) 2007-11-29 2007-11-29 Miniaturized force element

Publications (3)

Publication Number Publication Date
EP2065672A2 true EP2065672A2 (en) 2009-06-03
EP2065672A3 EP2065672A3 (en) 2013-02-20
EP2065672B1 EP2065672B1 (en) 2014-06-18

Family

ID=40303756

Family Applications (1)

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EP (1) EP2065672B1 (en)
DE (1) DE102007057551B4 (en)
ZA (1) ZA200810000B (en)

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DE102013017383A1 (en) 2013-10-21 2015-04-23 Trw Airbag Systems Gmbh Ignition unit, in particular for a gas generator, gas generator, gas bag module, vehicle safety system and method for producing an ignition unit

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EP0488937A2 (en) * 1990-11-28 1992-06-03 Dynamit Nobel Aktiengesellschaft Detonator, in particular for the gas generator of a passenger protective device in an automotive vehicle
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* Cited by examiner, † Cited by third party
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CN110485307B (en) * 2019-09-11 2021-08-10 李双 Bridge construction is with preventing stifled device that leaks

Also Published As

Publication number Publication date
DE102007057551A1 (en) 2009-06-04
DE102007057551B4 (en) 2011-11-24
EP2065672A3 (en) 2013-02-20
EP2065672B1 (en) 2014-06-18
ZA200810000B (en) 2009-11-25

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