EP0505728A1 - Impact igniter for a pyrotechnic gas generator provided with a primer - Google Patents

Impact igniter for a pyrotechnic gas generator provided with a primer Download PDF

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Publication number
EP0505728A1
EP0505728A1 EP92102830A EP92102830A EP0505728A1 EP 0505728 A1 EP0505728 A1 EP 0505728A1 EP 92102830 A EP92102830 A EP 92102830A EP 92102830 A EP92102830 A EP 92102830A EP 0505728 A1 EP0505728 A1 EP 0505728A1
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EP
European Patent Office
Prior art keywords
impact
gas generator
primer
guide opening
transmission element
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
EP92102830A
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German (de)
French (fr)
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EP0505728B1 (en
Inventor
Artur Föhl
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.)
TRW Occupant Restraint Systems GmbH
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TRW Occupant Restraint Systems GmbH
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Publication of EP0505728A1 publication Critical patent/EP0505728A1/en
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/10—Percussion caps

Definitions

  • the invention relates to an impact igniter for a pyrotechnic gas generator provided with a primer in a restraint system for vehicles.
  • a pyrotechnic gas generator cartridge When a pyrotechnic gas generator cartridge is mechanically triggered by impact, the impact must be very precisely on the center of the primer to ensure reliable triggering. If a firing pin is used to transmit the blow to the primer, it must be guided precisely and aligned with the center of the primer. This requirement can only be met through tight component and assembly tolerances.
  • the invention has for its object to ensure a reliable ignition even without adhering to tight assembly and component tolerances in a blow igniter of the type specified.
  • a percussion transmission element is received in a guide opening of the gas generator housing in opposition to the impact surface of the primer and protrudes with its free end from the guide opening.
  • the impact transmission element is precisely aligned in the center of the primer and held in this position.
  • a blow to the protruding free end of the impact transmission element therefore results in reliable ignition.
  • the blow now does not have to be centered in the axis of the primer; rather, it is sufficient if a blunt impact piece, an anvil, lever or the like hits the free end of the impact transmission element.
  • the advantages achieved by the invention come into play particularly when the gas generator on the one hand and the impact part executing the impact on the impact transmission element on the other hand are arranged in two relatively movable assemblies of a back tensioning device of a seat belt system.
  • the gas generator can, for example, be accommodated in a displaceable block of a back tensioning device engaging on the lock of the seat belt system.
  • the precise alignment of the primer on the gas generator with a striker pin guided in a fixed part would require a high component and assembly tolerance.
  • the impact transmission element is designed as a ball.
  • the insertion of a ball into the guide opening of the gas generator housing does not require any adjustment or alignment and is therefore favorable for automation of production.
  • the cylindrical housing 10 of a pyrotechnic gas generator is inserted into a bore 12 of an assembly, which is, for example, a back tensioning device in a vehicle seat belt system.
  • the housing 10 of the gas generator is secured in the bore 12 by two pins 14.
  • the gas generator is provided with a pyrotechnic charge 16 and with a primer 18.
  • the pyrotechnic charge 16 and the primer 18 are of conventional design and are therefore not described in detail.
  • the housing 10 of the gas generator has a guide opening 20 opposite the central region of the impact surface of the primer 18, in which a ball 22 is received. This ball 22 protrudes from the guide opening 20 which is narrowed at its outer end, for example by caulking, so that the ball 22 is held in it.
  • the blunt end of a striking part 24 is indicated, which is part of a mechanical release device.
  • this striking part 24 which is also the case can be an interposed striker, driven against the ball 22. This penetrates exactly centrally into the impact surface of the primer 18, which causes the gas generator to ignite. It can be seen that the axis of the striking part 24 does not have to be exactly aligned with that of the gas generator; rather, only the blunt surface of the striking part 24 must meet the protruding part of the ball 22.
  • the ball 22 forms a impact transmission element which is precisely aligned with the primer 18 through the guide opening 20 and held in this position.
  • Fig. 2 shows an embodiment with an impact transmission element, which is not designed as a ball, but as a pin 26.
  • This pin 26 has at its end opposite the primer 18 a widened and rounded head which is received in an extension of the guide opening 20.
  • the end of the pin 26 facing away from the primer 18 protrudes from the guide opening 20, which is designed as a stepped bore in order to secure the pin 26 in its interior.
  • a blunt end 24 of an impact part 24 is driven to trigger the gas generator against the end of the impact transmission element projecting out of the guide opening 20, namely the pin 26.
  • FIG. 3 shows the use of a gas generator of the type shown in FIG. 1 in a rear tensioning device of a seat belt system for vehicles.
  • a cylinder block 32 On a load-bearing part 30, which is screwed to the vehicle body, a cylinder block 32 is guided so as to be displaceable in the direction of the vehicle floor.
  • the buckle 34 of the seat belt system is anchored to the cylinder block 32.
  • the gas generator 36 which is designed analogously to FIG. 1, is accommodated in a chamber 38 of the cylinder block 32.
  • a piston 42 is received in the cylinder bore 40 of the cylinder block 32 and is connected to the fitting part 30 via a rigid piston rod 44.
  • a vehicle sensitive Trigger mechanism 46 is attached to the fitting part 30.
  • the pivotable striking piece 48 which, under the action of a compression spring 49, can be moved against one end of a striking pin 50 which is received in a cylindrical guide bore and the other end of which is directly opposite the ball 22 of the gas generator 36.
  • the striking pin 50 thus corresponds to the striking part 24 indicated in FIG. 1.
  • the pivotable striking piece 48 is held in its rest position shown in FIG. 3 by a not shown locking mechanism; the locking of the striker 48 is overcome by a vehicle-sensitive mass, so that it is driven by the prestressed spring 49 against the adjacent end of the striker 50, so that the blunt end of the striker hits the ball 22 and drives it into the striker 18.
  • the gas generator 36 is ignited; the gases generated by it are fed through the chamber 38 of the cylinder bore 40 and drive the cylinder block 32 - since the piston 42 is fixed to the fitting part 30 - towards the vehicle floor, the lock 34 being taken along and the belt slack being pulled out of the seat belt system.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Air Bags (AREA)

Abstract

An impact igniter for a pyrotechnic gas generator in safety-belt restraint systems is equipped with a priming cap (18) on the bottom of the gas-generator housing (10). In the bottom wall of the housing (10), a guide bore (20) is arranged opposite the impact surface of the priming cap. Arranged as an impact-transmission element in this guide bore (20) is a ball (22) which projects with its free end from the guide bore (20). …<IMAGE>…

Description

Die Erfindung betrifft einen Schlagzünder für einen pyrotechnischen, mit einem Zündhütchen versehenen Gasgenerator in einem Rückhaltesystem für Fahrzeuge.The invention relates to an impact igniter for a pyrotechnic gas generator provided with a primer in a restraint system for vehicles.

Bei mechanischer Auslösung einer pyrotechnischen Gasgeneratorpatrone durch Schlageinwirkung muß der Schlag sehr genau auf die Mitte des Zündhütchens erfolgen, um eine sichere Auslösung zu gewährleisten. Wird zur Übertragung des Schlages auf das Zündhütchen ein Schlagstift verwendet, so muß dieser präzise geführt und zur Mitte des Zündhütchens ausgerichtet sein. Diese Forderung kann nur durch enge Bauteil- und Montagetoleranzen erfüllt werden.When a pyrotechnic gas generator cartridge is mechanically triggered by impact, the impact must be very precisely on the center of the primer to ensure reliable triggering. If a firing pin is used to transmit the blow to the primer, it must be guided precisely and aligned with the center of the primer. This requirement can only be met through tight component and assembly tolerances.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Schlagzünder der oben angegebenen Art eine sichere Zündung auch ohne Einhaltung enger Montage- und Bauteiltoleranzen zu gewährleisten.The invention has for its object to ensure a reliable ignition even without adhering to tight assembly and component tolerances in a blow igniter of the type specified.

Diese Aufgabe wird bei einem Schlagzünder der genannten Art erfindungsgemäß dadurch gelöst, daß ein Schlagübertragungselement in einer Führungsöffnung des Gasgeneratorgehäuses in Gegenüberlage zu der Aufschlagfläche des Zündhütchens aufgenommen ist und mit seinem freien Ende aus der Führungsöffnung herausragt. Durch die Führungsöffnung wird das Schlagübertragungselement präzise mittig zum Zündhütchen ausgerichtet und in dieser Lage gehalten. Ein Schlag auf das herausragende freie Ende des Schlagübertragungselementes hat daher eine sichere Zündung zur Folge. Der Schlag muß nun nicht mittig in der Achse des Zündhütchens geführt werden; vielmehr reicht es aus, wenn ein stumpfes Schlagstück, ein Amboß, Hebel oder dergleichen auf das freie Ende des Schlagübertragungselementes trifft.This object is achieved according to the invention in a percussion detonator of the type mentioned in that a percussion transmission element is received in a guide opening of the gas generator housing in opposition to the impact surface of the primer and protrudes with its free end from the guide opening. Through the guide opening, the impact transmission element is precisely aligned in the center of the primer and held in this position. A blow to the protruding free end of the impact transmission element therefore results in reliable ignition. The blow now does not have to be centered in the axis of the primer; rather, it is sufficient if a blunt impact piece, an anvil, lever or the like hits the free end of the impact transmission element.

Die durch die Erfindung erzielten Vorteile kommen besonders dann zum Tragen, wenn der Gasgenerator einerseits und das den Schlag auf das Schlagübertragungselement ausführende Schlagteil andererseits in zwei relativ zueinander beweglichen Baugruppen einer Rückstrammeinrichtung eines Sicherheitsgurtsystems angeordnet sind. Der Gasgenerator kann beispielsweise in einem verschiebbaren Block einer am Schloß des Sicherheitsgurtsystems angreifenden Rückstrammeinrichtung aufgenommen sein. Bei einer solchen Konstruktion würde die genaue Ausrichtung des Zündhütchens am Gasgenerator zu einem in einem feststehenden Teil geführten Schlagstift eine hohe Bauteil-und Montagetoleranz erfordern. Durch die erfindungsgemäße Ausbildung des Schlagzünders wird eine sichere Auslösung hingegen selbst dann gewährleistet, wenn der Schlagstift oder ein anderes, den Schlag ausführendes Teil um mehrere Millimeter in bezug auf die Achse des Gasgenerators versetzt ist.The advantages achieved by the invention come into play particularly when the gas generator on the one hand and the impact part executing the impact on the impact transmission element on the other hand are arranged in two relatively movable assemblies of a back tensioning device of a seat belt system. The gas generator can, for example, be accommodated in a displaceable block of a back tensioning device engaging on the lock of the seat belt system. With such a construction, the precise alignment of the primer on the gas generator with a striker pin guided in a fixed part would require a high component and assembly tolerance. By designing the percussion igniter according to the invention, however, reliable triggering is ensured even if the percussion pin or another part carrying out the percussion is offset by several millimeters with respect to the axis of the gas generator.

Bei der bevorzugten Ausführungsform des Schlagzünders wird das Schlagübertragungselement als Kugel ausgebildet. Das Einbringen einer Kugel in die Führungsöffnung des Gasgeneratorgehäuses erfordert keinerlei Justierung oder Ausrichtung und ist daher für eine Automatisierung der Fertigung günstig.In the preferred embodiment of the impact igniter, the impact transmission element is designed as a ball. The insertion of a ball into the guide opening of the gas generator housing does not require any adjustment or alignment and is therefore favorable for automation of production.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung und aus der Zeichnung, auf die Bezug genommen wird. In der Zeichnung zeigen:

Fig. 1
einen Axialschnitt eines pyrotechnischen Gasgenerators mit Schlagzünder;
Fig. 2
eine Teilansicht einer anderen Ausführungsform des Gasgenerators; und
Fig. 3
eine schematische, teilweise im Schnitt gezeigte Ansicht einer Rückstrammeinrichtung mit einem erfindungsgemäßen Schlagzünder.
Further features and advantages of the invention will become apparent from the following description and from the drawing, to which reference is made. The drawing shows:
Fig. 1
an axial section of a pyrotechnic gas generator with impact igniter;
Fig. 2
a partial view of another embodiment of the gas generator; and
Fig. 3
is a schematic view, partly in section, of a back tightening device with an impact igniter according to the invention.

Bei der in Fig. 1 gezeigten Ausführungsform ist das zylindrische Gehäuse 10 eines pyrotechnischen Gasgenerators in eine Bohrung 12 eines Aggregats eingesetzt, bei dem es sich beispielsweise um eine Rückstrammeinrichtung in einem Fahrzeug-Sicherheitsgurtsystem handelt. Das Gehäuse 10 des Gasgenerators ist durch zwei Stifte 14 in der Bohrung 12 gesichert. Der Gasgenerator ist mit einer pyrotechnischen Ladung 16 und mit einem Zündhütchen 18 versehen. Die pyrotechnische Ladung 16 und das Zündhütchen 18 sind herkömmlich ausgebildet und werden daher nicht näher beschrieben. Das Gehäuse 10 des Gasgenerators weist gegenüber dem zentralen Bereich der Aufschlagfläche des Zündhütchens 18 eine Führungsöffnung 20 auf, in welcher eine Kugel 22 aufgenommen ist. Diese Kugel 22 ragt aus der Führungsöffnung 20 heraus, die an ihrem äußeren Ende verengt ist, beispielsweise durch Verstemmen, so daß die Kugel 22 in ihr gehalten wird. Gegenüber dem aus der Führungsöffnung 20 herausragenden Teil der Kugel 22 ist das stumpfe Ende eines Schlagteils 24 angedeutet, welches Bestandteil einer mechanischen Auslösevorrichtung ist. Im Auslösefalle wird dieses Schlagteil 24, bei dem es sich auch um einen zwischengefügten Schlagstift handeln kann, gegen die Kugel 22 getrieben. Diese dringt genau zentrisch in die Aufschlagfläche des Zündhütchens 18 ein, wodurch die Zündung des Gasgenerators erfolgt. Es ist ersichtlich, daß die Achse des Schlagteils 24 keineswegs genau mit der des Gasgenerators fluchten muß; vielmehr muß lediglich die stumpfe Fläche des Schlagteils 24 auf den herausragenden Teil der Kugel 22 treffen. Die Kugel 22 bildet ein Schlagübertragungselement, welches durch die Führungsöffnung 20 präzise zu dem Zündhütchen 18 ausgerichtet und in dieser Stellung gehalten wird.In the embodiment shown in FIG. 1, the cylindrical housing 10 of a pyrotechnic gas generator is inserted into a bore 12 of an assembly, which is, for example, a back tensioning device in a vehicle seat belt system. The housing 10 of the gas generator is secured in the bore 12 by two pins 14. The gas generator is provided with a pyrotechnic charge 16 and with a primer 18. The pyrotechnic charge 16 and the primer 18 are of conventional design and are therefore not described in detail. The housing 10 of the gas generator has a guide opening 20 opposite the central region of the impact surface of the primer 18, in which a ball 22 is received. This ball 22 protrudes from the guide opening 20 which is narrowed at its outer end, for example by caulking, so that the ball 22 is held in it. Compared to the part of the ball 22 protruding from the guide opening 20, the blunt end of a striking part 24 is indicated, which is part of a mechanical release device. In the event of triggering this striking part 24, which is also the case can be an interposed striker, driven against the ball 22. This penetrates exactly centrally into the impact surface of the primer 18, which causes the gas generator to ignite. It can be seen that the axis of the striking part 24 does not have to be exactly aligned with that of the gas generator; rather, only the blunt surface of the striking part 24 must meet the protruding part of the ball 22. The ball 22 forms a impact transmission element which is precisely aligned with the primer 18 through the guide opening 20 and held in this position.

Fig. 2 zeigt eine Ausführungsform mit einem Schlagübertragungselement, welches nicht als Kugel, sondern als Stift 26 ausgebildet ist. Dieser Stift 26 weist an seinem dem Zündhütchen 18 gegenüberliegenden Ende einen verbreiterten und verrundeten Kopf auf, der in einer Erweiterung der Führungsöffnung 20 aufgenommen ist. Das von dem Zündhütchen 18 abgewandte Ende des Stiftes 26 ragt aus der Führungsöffnung 20 heraus, die als Stufenbohrung ausgebildet ist, um den Stift 26 in ihrem Inneren zu sichern. Auch bei dieser Ausführungsform wird zur Auslösung des Gasgenerators ein Schlagteil 24 mit seinem stumpfen Ende gegen das aus der Führungsöffnung 20 herausragende Ende des Schlagübertragungselementes, nämlich des Stiftes 26, getrieben.Fig. 2 shows an embodiment with an impact transmission element, which is not designed as a ball, but as a pin 26. This pin 26 has at its end opposite the primer 18 a widened and rounded head which is received in an extension of the guide opening 20. The end of the pin 26 facing away from the primer 18 protrudes from the guide opening 20, which is designed as a stepped bore in order to secure the pin 26 in its interior. In this embodiment too, a blunt end 24 of an impact part 24 is driven to trigger the gas generator against the end of the impact transmission element projecting out of the guide opening 20, namely the pin 26.

Die Fig. 3 zeigt die Verwendung eines Gasgenerators der in Fig. 1 gezeigten Art in einer Rückstrammeinrichtung eines Sicherheitsgurtsystems für Fahrzeuge. An einem lasttragend dimensionierten Beschlagteil 30, welches mit dem Fahrzeugaufbau verschraubt wird, ist ein Zylinderblock 32 in Richtung zum Fahrzeugboden hin verschiebbar geführt. An dem Zylinderblock 32 ist das Schloß 34 des Sicherheitsgurtsystems verankert. Der analog zu Fig. 1 ausgebildete Gasgenerator 36 ist in einer Kammer 38 des Zylinderblocks 32 aufgenommen. In der Zylinderbohrung 40 des Zylinderblocks 32 ist ein Kolben 42 aufgenommen, der über eine starre Kolbenstange 44 mit dem Beschlagteil 30 verbunden ist. Ein fahrzeugsensitiver Auslösemechanismus 46 ist an dem Beschlagteil 30 befestigt. Es umfaßt ein schwenkbar gelagertes Schlagstück 48, welches unter der Wirkung einer Druckfeder 49 gegen das eine Ende eines Schlagstiftes 50 bewegbar ist, der in einer zylindrischen Führungsbohrung aufgenommen ist und dessen anderes Ende unmittelbar der Kugel 22 des Gasgenerators 36 gegenüberliegt. Der Schlagstift 50 entspricht somit dem in Fig. 1 angedeuteten Schlagteil 24. Das schwenkbare Schlagstück 48 wird durch einen nicht gezeigten Rastmechanismus in seiner in Fig. 3 gezeigten Ruhestellung gehalten; durch eine fahrzeugsensitive Masse wird die Verrastung des Schlagstücks 48 überwunden, so daß dieses durch die vorgespannte Feder 49 gegen das benachbarte Ende des Schlagstiftes 50 getrieben wird, so daß dieser mit seinem stumpfen Ende auf die Kugel 22 trifft und diese in den Schlagzünder 18 eintreibt. Der Gasgenerator 36 wird gezündet; die von ihm erzeugten Gase werden durch die Kammer 38 der Zylinderbohrung 40 zugeführt und treiben den Zylinderblock 32 - da der Kolben 42 am Beschlagteil 30 festgelegt ist - in Richtung zum Fahrzeugboden, wobei das Schloß 34 mitgenommen und die Gurtlose aus dem Sicherheitsgurtsystem herausgezogen wird.FIG. 3 shows the use of a gas generator of the type shown in FIG. 1 in a rear tensioning device of a seat belt system for vehicles. On a load-bearing part 30, which is screwed to the vehicle body, a cylinder block 32 is guided so as to be displaceable in the direction of the vehicle floor. The buckle 34 of the seat belt system is anchored to the cylinder block 32. The gas generator 36, which is designed analogously to FIG. 1, is accommodated in a chamber 38 of the cylinder block 32. A piston 42 is received in the cylinder bore 40 of the cylinder block 32 and is connected to the fitting part 30 via a rigid piston rod 44. A vehicle sensitive Trigger mechanism 46 is attached to the fitting part 30. It comprises a pivotable striking piece 48 which, under the action of a compression spring 49, can be moved against one end of a striking pin 50 which is received in a cylindrical guide bore and the other end of which is directly opposite the ball 22 of the gas generator 36. The striking pin 50 thus corresponds to the striking part 24 indicated in FIG. 1. The pivotable striking piece 48 is held in its rest position shown in FIG. 3 by a not shown locking mechanism; the locking of the striker 48 is overcome by a vehicle-sensitive mass, so that it is driven by the prestressed spring 49 against the adjacent end of the striker 50, so that the blunt end of the striker hits the ball 22 and drives it into the striker 18. The gas generator 36 is ignited; the gases generated by it are fed through the chamber 38 of the cylinder bore 40 and drive the cylinder block 32 - since the piston 42 is fixed to the fitting part 30 - towards the vehicle floor, the lock 34 being taken along and the belt slack being pulled out of the seat belt system.

Claims (8)

Schlagzünder für einen pyrotechnischen, mit einem Zündhütchen versehenen Gasgenerator in einem Rückhaltesystem für Fahrzeuge, dadurch gekennzeichnet, daß ein Schlagübertragungselement (22,; 26) in einer Führungsöffnung (20) des Gasgeneratorgehäuses (10) in Gegenüberlage zu der Aufschlagfläche des Zündhütchens (18) aufgenommen ist und mit seinem freien Ende aus der Führungsöffnung (20) herausragt.Impact igniter for a pyrotechnic gas generator provided with a primer in a restraint system for vehicles, characterized in that an impact transmission element (22, 26) is accommodated in a guide opening (20) in the gas generator housing (10) opposite the impact surface of the primer (18) and protrudes with its free end from the guide opening (20). Schlagzünder nach Anspruch 1, dadurch gekennzeichnet, daß das freie Ende des Schlagübertragungselements (22; 26) in Gegenüberlage zu einem Schlagteil (24) angeordnet ist, dessen dem freien Ende des Schlagübertragungselements (22; 26) gegenüberliegende Fläche wesentlich größer ist als die Querschnittsfläche dieses freien Endes.Impact igniter according to claim 1, characterized in that the free end of the impact transmission element (22; 26) is arranged opposite to an impact part (24) whose surface opposite the free end of the impact transmission element (22; 26) is substantially larger than the cross-sectional area thereof free end. Schlagzünder nach Anspruch 2, dadurch gekennzeichnet, daß der Gasgenerator (36) und das Schlagteil (50) in zwei relativ zueinander beweglichen Baugruppen (30, 32) einer Rückstrammeinrichtung eines Sicherheitsgurtsystems angeordnet sind.Impact igniter according to claim 2, characterized in that the gas generator (36) and the impact part (50) are arranged in two assemblies (30, 32), which are movable relative to one another, of a rear tensioning device of a seat belt system. Schlagzünder nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Schlagübertragungselement als Kugel (22) ausgebildet ist.Impact igniter according to one of the preceding claims, characterized in that the impact transmission element is designed as a ball (22). Schlagzünder nach Anspruch 4, dadurch gekennzeichnet, daß die Führungsöffnung (20) an ihrem äußeren Ende verengt und die Kugel (22) durch die Verengung in der Führungsöffnung (20) gehalten ist.Impact igniter according to claim 4, characterized in that the guide opening (20) is narrowed at its outer end and the ball (22) is held in the guide opening (20) by the narrowing. Schlagzünder nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Schlagübertragungselement als Stift (26) ausgebildet ist.Impact igniter according to one of claims 1 to 3, characterized in that the impact transmission element is designed as a pin (26). Schlagzünder nach Anspruch 6, dadurch gekennzeichnet, daß der Stift (26) an seinem inneren, dem Zündhütchen (18) gegenüberliegenden Ende verrundet ist.Impact igniter according to claim 6, characterized in that the pin (26) is rounded at its inner end opposite the primer (18). Schlagzünder nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Führungsöffnung (20) als außen engere Stufenbohrung und der Stift (26) mit einem in dem weiteren Teil der Führungsöffnung aufgenommenen, verbreiterten Kopfstück ausgebildet ist.Impact igniter according to Claim 6 or 7, characterized in that the guide opening (20) is designed as a stepped bore which is narrower on the outside and the pin (26) is designed with a widened head piece which is received in the further part of the guide opening.
EP92102830A 1991-03-25 1992-02-20 Impact igniter for a pyrotechnic gas generator provided with a primer Expired - Lifetime EP0505728B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9103660U 1991-03-25
DE9103660U DE9103660U1 (en) 1991-03-25 1991-03-25

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EP0505728A1 true EP0505728A1 (en) 1992-09-30
EP0505728B1 EP0505728B1 (en) 1994-04-20

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US (1) US5233925A (en)
EP (1) EP0505728B1 (en)
JP (1) JPH0718671B2 (en)
CZ (1) CZ281958B6 (en)
DE (2) DE9103660U1 (en)
ES (1) ES2034927T3 (en)
HU (1) HU216936B (en)
PL (1) PL167792B1 (en)
RU (1) RU2060179C1 (en)

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HU216936B (en) 1999-10-28
DE59200121D1 (en) 1994-05-26
CZ281958B6 (en) 1997-04-16
PL293898A1 (en) 1992-10-05
PL167792B1 (en) 1995-11-30
JPH05187797A (en) 1993-07-27
JPH0718671B2 (en) 1995-03-06
US5233925A (en) 1993-08-10
CZ89792A3 (en) 1993-06-16
RU2060179C1 (en) 1996-05-20
HU9201001D0 (en) 1992-06-29
EP0505728B1 (en) 1994-04-20
ES2034927T3 (en) 1994-10-01
HUT63699A (en) 1993-09-28
DE9103660U1 (en) 1991-05-29
ES2034927T1 (en) 1993-04-16

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