EP0679860B1 - Signalling device, in particular a signal rocket - Google Patents

Signalling device, in particular a signal rocket Download PDF

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Publication number
EP0679860B1
EP0679860B1 EP95106002A EP95106002A EP0679860B1 EP 0679860 B1 EP0679860 B1 EP 0679860B1 EP 95106002 A EP95106002 A EP 95106002A EP 95106002 A EP95106002 A EP 95106002A EP 0679860 B1 EP0679860 B1 EP 0679860B1
Authority
EP
European Patent Office
Prior art keywords
cover
outer tube
constriction
wall
signal
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
EP95106002A
Other languages
German (de)
French (fr)
Other versions
EP0679860A3 (en
EP0679860A2 (en
Inventor
Arthur Zahn
Eckart Foehn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Comet GmbH
Comet GmbH Pyrotechnik Apparatebau
Original Assignee
Comet GmbH
Comet GmbH Pyrotechnik Apparatebau
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Filing date
Publication date
Application filed by Comet GmbH, Comet GmbH Pyrotechnik Apparatebau filed Critical Comet GmbH
Publication of EP0679860A2 publication Critical patent/EP0679860A2/en
Publication of EP0679860A3 publication Critical patent/EP0679860A3/en
Application granted granted Critical
Publication of EP0679860B1 publication Critical patent/EP0679860B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/06Aerial display rockets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00Shotgun ammunition
    • F42B7/02Cartridges, i.e. cases with propellant charge and missile
    • F42B7/12Cartridge top closures, i.e. for the missile side

Definitions

  • the invention relates to a signaling means, in particular a Signal rocket.
  • Pyrotechnic signaling devices are used primarily in the air and Seafaring, third parties on acute emergencies and impending To draw attention to dangerous situations.
  • the a signal rocket that is usually fired from the hand and on the other signal cartridges, which consist of a suitable signal gun are fired, used.
  • Such Signaling devices are also used as pyrotechnic lighting devices for airport apron lighting or lighting for search and rescue operations at night.
  • the signal is fired from an outer tube, in where the signal is housed.
  • the signal occurs after the Ignite from the outer tube, by one with one detachable closure provided end face of the outer tube, which is removed from the signal.
  • the invention is a practical training of Closure on the upper face of the outer tube, which in the must meet two essential requirements.
  • the closure of the mechanical stresses of the Signal rocket, especially a fall on the top face, withstand, without the already ignited Signal can slip out of the outer tube.
  • the signal with the lowest possible Step out the resistance from the front of the outer tube can, so the closure can be easily blasted off so that the Recoil is as low as possible.
  • Signal means are known in which a closure of the upper end of the outer tube assigned to the signal through one or more discs.
  • a closure of the upper end of the outer tube assigned to the signal through one or more discs.
  • the EP 0 277 275 B1 discloses a generic signal rocket, at of several items, namely a cover in Connection with a curved collecting disk, a functional closure of the top of the Form outer tube. This configuration corresponds to the from a mechanical and ignition point of view Signaling requirements, but it is in production-technically unfavorable. So trained Signaling devices can only be installed with great effort.
  • a firework rocket is known from DE 39 02 381 A1 has an envelope (missile body), the lower and the upper part by means of a predetermined breaking seam similar to a bellows are connected.
  • the wall thickness of the envelope is everywhere about the same, even in the area of bellows-like Predetermined breaking seam. This leads to the blasting of the Head of the envelope from the rest (lower) part of it is not relieved, which is therefore not the case with fireworks rockets is required because this is unlike signal rockets not be shot out of your hand and thereby hit it on one low recoil doesn't arrive at all.
  • the invention is based on the object To create signaling means that are reliable and functional closure that has a simple Manufacturing guaranteed.
  • the signaling device has the features of claim 1.
  • the manufacture of the Signal means simplified. In particular, assembly is not required the previously separate cover.
  • the constriction causes force on the cover opposite to the direction of the rocket launch, e.g. at a fall on the locked face of the signal rocket, that the coverage is limited in scope elastic region is deformed. Removing the cover from the Outer tube and the associated slipping out of the signal from the outer tube is prevented.
  • a predetermined breaking point is assigned to the cover by means of a signal.
  • the predetermined breaking point ensures when the Signal rocket using the signal as possible low resistance.
  • the cover can be easily removed from the outer tube loosen or blow off, and thereby the recoil at Reduce firing of the signaling agent.
  • FIG. 1 shows a parachute signal rocket 10 Signaling means.
  • An elongated cylindrical outer tube 11 of the parachute missile 10 has two each other opposite end faces 12, 13.
  • the lower end face 13 has an opening 14.
  • the opening 14 is through a Bottom 15 releasably closed to the outer tube 11, which is a manually operated trigger 16 for the ignition assigned.
  • Towards the rocket launch (arrow 17) seen above the floor 15 is a propellant 18 and a signal above it, namely a star set 19, with one above it folded parachute 20.
  • the top face 12 of the outer tube 11 is a trained according to the invention Closure 21 assigned. For the rest, the propellant 18 and the star set 19 still trained in a conventional manner Cheers, delay rates and intermediate rates assigned, which are not described here.
  • a closure 29 according to a first embodiment of the Invention consists of a cover 30 with a wall 33 of the outer tube 11 is formed in one piece (FIG. 3).
  • the Cover 30 consists of two sections, namely one lower, cylindrical section 31 and an upper, conical section 32.
  • constriction 34 is assigned in the lower, cylindrical section 31 is the cover 30 a constriction 34 is assigned.
  • the constriction 34 is as circumferential, outside of a wall 35 of the lower section 31 outgoing, groove formed.
  • the depth of the neck 34 is several times greater than the thickness of the wall 33 of the Outer tube 11.
  • the width the constriction 34 is dimensioned such that when a force is applied opposite to the direction of the missile launch the deformation of the cover 30 is always in the elastic range remains.
  • the constriction 34 is small Distance to a bottom wall 36 of the cover 30 is arranged. This creates between in a transition region 37 Cover 30 and wall 33 a predetermined breaking point 38.
  • the predetermined breaking point 38 or the distance of the constriction 34 from the Bottom wall 36 is less than the thickness of the wall 33, and in such a way that when the parachute signal rocket 10 the closure 29 can be easily blown off.
  • the closure 21 consists of a cover 49 which is integral with a wall 50 of the Outer tube 11 is formed.
  • the cover 49 consists of a lower, cylindrical section 51 and an upper, tapered section 52.
  • the lower section 51 are one Constriction 53 and a notch 54 assigned.
  • the constriction 53 is from a wall 55 of the cover 49 starting as a circumferential groove.
  • the training and The constriction 53 is dimensioned analogously to the constriction 34 of FIG. 3.
  • the notch 54 is based on a Bottom wall 56 of the cover 49 an edge region 57 of the same assigned.
  • the notch 54 is V-shaped in cross section formed, with one leg of the notch 54 through the Wall 50 is formed.
  • the notch 54 is therefore in the Transitional area (edge area 57) between cover 49 and Wall 50 arranged.
  • the depth of the notch 54 is such dimension that in the transition area a defined predetermined breaking point 58 arises.
  • the notch 54 has one Opening angle of 10 ° - 50 °, preferably 30 °. The opening angle from 30 ° has been considered a recoil-free Detonation of the closure 21 as particularly favorable proven.
  • Fig. 5 shows the operation of the designed according to the invention 4, in the event of a force opposite to the direction (arrow 17) of the missile launch (for example, by dropping the parachute rocket 10 on the closure 21).
  • a force opposite to the direction (arrow 17) of the missile launch for example, by dropping the parachute rocket 10 on the closure 21.
  • the Deformation of the cover 49 is determined by the width of the Constriction 53 limited.
  • At maximum deformation of the Cover 49 is in the area of wall 50 of outer tube 11 the constriction 53 compressed so that sections opposite walls 59, 60 of the constriction 53 one on top of the other lie. Forms outside the area of the wall 50 the constriction 53 a cavity 61.
  • constriction 53 is a the wall 50 and the end of the groove limited circular ring Cover 49 deliberately deformed.
  • the depth of the constriction 53 or groove determines the width of the annulus. Combined with the width of the constriction 53 ensures the depth of the same, that the deformation of the cover 49 or the annulus is limited and always remains in the elastic range, so that the predetermined breaking point 58 does not break.
  • the closure 62 consists of a cover 63 which with a Wall 64 of the outer tube is connected in one piece.
  • the Cover 63 consists of a lower, cylindrical section 65 and an upper, conical section 66. Analogous to that 4 are the lower portion 65 a Constriction 67 and a notch 68 assigned. in the 4 is the difference from the exemplary embodiment according to FIG Constriction 67 formed in a special way. Starting from a wall 69 of the cover 63 is the constriction 67 as circumferential groove formed. The depth of the constriction is 67 a multiple, in particular a double, larger than the thickness of the wall 64 of the outer tube.
  • the width of the Constriction is due to technical manufacturing conditions formed thicker than in the exemplary embodiment according to FIG. 4. So that the constriction 67, however, its functionality Limitation of deformation of the cover 63 are the same Assigned to webs 70.
  • the webs 70 are over the circumference the constriction 67 by an angle of approximately 90 ° to one another transferred. The webs 70 limit when a force is applied opposite to the direction of the missile launch the deformation of the cover 63 and keep it always in elastic range.
  • Signaling means for example signal cartridges, for use come.
  • the signal is fired with signal cartridges not from an outer tube, but from a cartridge case.
  • the Design of a closure of the cartridge case can be analog to the embodiments of FIGS. 3-7.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Casings For Electric Apparatus (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Telephone Function (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Description

Die Erfindung betrifft ein Signalmittel, insbesondere eine Signalrakete.The invention relates to a signaling means, in particular a Signal rocket.

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

Das Abfeuern des Signals erfolgt aus einem Außenrohr heraus, in dem das Signal untergebracht ist. Das Signal tritt nach dem Zünden aus dem Außenrohr heraus, und zwar durch eine mit einem absprengbaren Verschluß versehene Stirnseite des Außenrohrs, der dabei vom Signal entfernt wird.The signal is fired from an outer tube, in where the signal is housed. The signal occurs after the Ignite from the outer tube, by one with one detachable closure provided end face of the outer tube, which is removed from the signal.

Bei der Erfindung geht es um eine praxisgerechte Ausbildung des Verschlusses an der oberen Stirnseite des Außenrohrs, der im wesentlichen zwei Forderungen gerecht werden muß. Zum einen soll der Verschluß mechanischen Beanspruchungen der Signalrakete, insbesondere einem Fall auf die obere Stirnseite, standhalten, und zwar ohne daß dabei bereits das ungezündete Signal aus dem Außenrohr herausrutschen kann. Zum anderen soll nach dem Zünden der Rakete das Signal mit möglichst geringem Widerstand aus der Stirnseite des Außenrohrs heraustreten können, also der Verschluß leicht absprengbar sein, damit der Rückstoß so gering wie möglich ist.The invention is a practical training of Closure on the upper face of the outer tube, which in the must meet two essential requirements. On the one hand the closure of the mechanical stresses of the Signal rocket, especially a fall on the top face, withstand, without the already ignited Signal can slip out of the outer tube. On the other hand after firing the rocket the signal with the lowest possible Step out the resistance from the front of the outer tube can, so the closure can be easily blasted off so that the Recoil is as low as possible.

Es sind Signalmittel bekannt, bei denen ein Verschluß der oberen, der dem Signal zugeordneten Stirnseite des Außenrohrs durch eine oder mehrere Scheiben erfolgt. So ist z.B. in der EP 0 277 275 B1 eine gattungsgemäße Signalrakete offenbart, bei der mehrere Einzelteile, nämlich eine Abdeckscheibe in Verbindung mit einer gebogen ausgebildeten Auffangscheibe, einen funktionsgerechten Verschluß der oberen Stirnseite des Außenrohrs bilden. Diese Ausgestaltung entspricht zwar den unter mechanischen und zündtechnischen Gesichtspunkten an das Signalmittel gestellten Anforderungen, sie ist jedoch in fertigungtechnischer Hinsicht ungünstig. Derartig ausgebildete Signalmittel lassen sich nur mit großem Aufwand montieren.Signal means are known in which a closure of the upper end of the outer tube assigned to the signal through one or more discs. For example, in the EP 0 277 275 B1 discloses a generic signal rocket, at of several items, namely a cover in Connection with a curved collecting disk, a functional closure of the top of the Form outer tube. This configuration corresponds to the from a mechanical and ignition point of view Signaling requirements, but it is in production-technically unfavorable. So trained Signaling devices can only be installed with great effort.

Aus der DE 39 02 381 A1 ist eine Feuerwerksrakete bekannt, die über einen Hüllkörper (Raketenkörper) verfügt, dessen unterer und oberer Teil durch eine faltenbalgähnlich ausgebildete Sollbruchnaht verbunden sind. Die Wandstärke des Hüllkörpers ist überall etwa gleich, und zwar auch im Bereich der faltenbalgähnlichen Sollbruchnaht. Das führt dazu, daß das Absprengen des Kopfs des Hüllkörpers vom übrigen (unteren) Teil desselben nicht erleichtert wird, was bei Feuerwerksraketen deshalb nicht erforderlich ist, weil diese im Gegensatz zu Signalraketen nicht aus der Hand abgeschossen werden und dadurch es auf einen geringen Rückstoß überhaupt nicht ankommt. A firework rocket is known from DE 39 02 381 A1 has an envelope (missile body), the lower and the upper part by means of a predetermined breaking seam similar to a bellows are connected. The wall thickness of the envelope is everywhere about the same, even in the area of bellows-like Predetermined breaking seam. This leads to the blasting of the Head of the envelope from the rest (lower) part of it is not relieved, which is therefore not the case with fireworks rockets is required because this is unlike signal rockets not be shot out of your hand and thereby hit it on one low recoil doesn't arrive at all.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, ein Signalmittel zu schaffen, das einen zuverlässigen und funktionsgerechten Verschluß aufweist, der eine einfache Fertigung gewährleistet.Proceeding from this, the invention is based on the object To create signaling means that are reliable and functional closure that has a simple Manufacturing guaranteed.

Zur Lösung dieser Aufgabe weist das erfindungsgemäße Signalmittel die Merkmale des Anspruchs 1 auf. Durch die einstückige Ausbildung von Außenrohr und Abdeckung wird die Herstellung des Signalmittels vereinfacht. Insbesondere entfällt die Montage der bisher üblichen, getrennten Abdeckung.To achieve this object, the signaling device according to the invention has the features of claim 1. Through the one-piece Training of the outer tube and cover is the manufacture of the Signal means simplified. In particular, assembly is not required the previously separate cover.

Die Einschnürung bewirkt bei Krafteinwirkung auf die Abdeckung entgegengesetzt zur Richtung des Raketenabschusses, z.B. bei einem Fall auf die verschlossene Stirnseite der Signalrakete, daß die Abdeckung gezielt in begrenztem Umfange nur im elastischen Bereich verformt wird. Ein Lösen der Abdeckung vom Außenrohr und ein damit verbundenes Herausrutschen des Signals aus dem Außenrohr wird verhindert.The constriction causes force on the cover opposite to the direction of the rocket launch, e.g. at a fall on the locked face of the signal rocket, that the coverage is limited in scope elastic region is deformed. Removing the cover from the Outer tube and the associated slipping out of the signal from the outer tube is prevented.

Bei einer vorteilhaften Weiterbildung des erfindungsgemäßen Signalmittels ist der Abdeckung eine Sollbruchstelle zugeordnet. Die Sollbruchstelle gewährleistet beim Zünden der Signalrakete das Heraustreten des Signals mit möglichst geringem Widerstand. Die Abdeckung läßt sich leicht vom Außenrohr lösen bzw. absprengen, und dadurch der Rückstoß beim Abfeuern des Signalmittels verringern.In an advantageous development of the invention A predetermined breaking point is assigned to the cover by means of a signal. The predetermined breaking point ensures when the Signal rocket using the signal as possible low resistance. The cover can be easily removed from the outer tube loosen or blow off, and thereby the recoil at Reduce firing of the signaling agent.

Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung. Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert. In der Zeichnung zeigen:

Fig. 1
einen Längsschnitt durch eine aufrechte Fallschirmsignalrakete,
Fig. 2
einen Längsschnitt durch ein Außenrohr der Fallschirmsignalrakete gemäß Fig. 1,
Fig. 3
einen vergrößerten Teil-Längsschnitt durch einen Verschluß der Fallschirmsignalrakete nach einem ersten Ausführungsbeispiel der Erfindung,
Fig. 4
einen Verschluß der Fallschirmsignalrakete nach einem zweiten Ausführungsbeispiel der Erfindung nach einem Ausschnitt IV der Fig. 2 in einer Ansicht analog zur Fig. 3,
Fig. 5
den Verschluß der Fallschirmsignalrakete gemäß Fig. 6 im verformten Zustand,
Fig. 6
einen Verschluß der Fallschirmsignalrakete nach einem dritten Ausführungsbeispiel der Erfindung in einer Ansicht analog zu den Fig. 3 und 4, und
Fig. 7
einen Querschnitt VII-VII durch den Verschluß der Fallschirmsignalrakete gemäß Fig. 6.
Preferred developments of the invention result from the subclaims and the description. Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. The drawing shows:
Fig. 1
a longitudinal section through an upright parachute signal rocket,
Fig. 2
2 shows a longitudinal section through an outer tube of the parachute signal rocket according to FIG. 1,
Fig. 3
3 shows an enlarged partial longitudinal section through a closure of the parachute signal rocket according to a first exemplary embodiment of the invention,
Fig. 4
3 shows a closure of the parachute signal rocket according to a second exemplary embodiment of the invention according to a section IV of FIG. 2 in a view analogous to FIG. 3,
Fig. 5
6 in the deformed state,
Fig. 6
a closure of the parachute signal rocket according to a third embodiment of the invention in a view analogous to FIGS. 3 and 4, and
Fig. 7
a cross section VII-VII through the closure of the parachute signal rocket according to FIG. 6.

Die Fig. 1 zeigt ein als Fallschirmsignalrakete 10 ausgebildetes Signalmittel. Ein längliches zylindrisches Außenrohr 11 der Fallschirmsignalrakete 10 verfügt über zwei einander gegenüberliegende Stirnseiten 12, 13. Die untere Stirnseite 13 verfügt über eine Öffnung 14. Die Öffnung 14 ist durch einen lösbar mit dem Außenrohr 11 verbundenen Boden 15 verschlossen, dem ein manuell zu betätigender Auslöser 16 für die Zündung zugeordnet ist. In Richtung des Raketenabschusses (Pfeil 17) gesehen befindet sich über dem Boden 15 ein Treibsatz 18 und darüber ein Signal, nämlich ein Sternsatz 19, mit einem darüber gefaltet angeordneten Fallschirm 20. Der oberen Stirnseite 12 des Außenrohrs 11 ist ein erfindungsgemäß ausgebildeter Verschluß 21 zugeordnet. Im übrigen sind dem Treibsatz 18 und dem Sternsatz 19 noch in ansich bekannter Weise ausgebildete Anfeuerungen, Verzögerungssätze und Zwischensätze zugeordnet, die hier nicht näher beschrieben werden.1 shows a parachute signal rocket 10 Signaling means. An elongated cylindrical outer tube 11 of the parachute missile 10 has two each other opposite end faces 12, 13. The lower end face 13 has an opening 14. The opening 14 is through a Bottom 15 releasably closed to the outer tube 11, which is a manually operated trigger 16 for the ignition assigned. Towards the rocket launch (arrow 17) seen above the floor 15 is a propellant 18 and a signal above it, namely a star set 19, with one above it folded parachute 20. The top face 12 of the outer tube 11 is a trained according to the invention Closure 21 assigned. For the rest, the propellant 18 and the star set 19 still trained in a conventional manner Cheers, delay rates and intermediate rates assigned, which are not described here.

Ein Verschluß 29 nach einem ersten Ausführungsbeispiel der Erfindung besteht aus einer Abdeckung 30, die mit einer Wandung 33 des Außenrohrs 11 einstückig ausgebildet ist (Fig. 3). Die Abdeckung 30 besteht aus zwei Abschnitten, nämlich einem unteren, zylindrischen Abschnitt 31 und einem oberen, kegelförmigen Abschnitt 32.A closure 29 according to a first embodiment of the Invention consists of a cover 30 with a wall 33 of the outer tube 11 is formed in one piece (FIG. 3). The Cover 30 consists of two sections, namely one lower, cylindrical section 31 and an upper, conical section 32.

In dem unteren, zylindrischen Abschnitt 31 ist der Abdeckung 30 eine Einschnürung 34 zugeordnet. Die Einschnürung 34 ist als umlaufende, außen von einer Wandung 35 des unteren Abschnitts 31 ausgehende, Nut ausgebildet. Die Tiefe der Einschnürung 34 ist um ein mehrfaches größer als die Dicke der Wandung 33 des Außenrohrs 11. Vorzugsweise verfügt die Tiefe der Einschnürung 34 über etwa das Dreifache der Dicke der Wandung 33. Die Breite der Einschnürung 34 ist derart bemessen, daß bei einer Krafteinwirkung entgegengesetzt zur Richtung des Raketenabschusses die Verformung der Abdeckung 30 stets im elastischen Bereich bleibt. Des weiteren ist die Einschnürung 34 mit geringem Abstand zu einer Bodenwandung 36 der Abdeckung 30 angeordnet. Dadurch entsteht in einem Übergangsbereich 37 zwischen Abdeckung 30 und Wandung 33 eine Sollbruchstelle 38. Die Sollbruchstelle 38 bzw. der Abstand der Einschnürung 34 von der Bodenwandung 36 ist geringer als die Dicke der Wandung 33, und zwar derart, daß sich beim Zünden der Fallschirmsignalrakete 10 der Verschluß 29 leicht absprengen läßt.In the lower, cylindrical section 31 is the cover 30 a constriction 34 is assigned. The constriction 34 is as circumferential, outside of a wall 35 of the lower section 31 outgoing, groove formed. The depth of the neck 34 is several times greater than the thickness of the wall 33 of the Outer tube 11. Preferably has the depth of the constriction 34 about three times the thickness of the wall 33. The width the constriction 34 is dimensioned such that when a force is applied opposite to the direction of the missile launch the deformation of the cover 30 is always in the elastic range remains. Furthermore, the constriction 34 is small Distance to a bottom wall 36 of the cover 30 is arranged. This creates between in a transition region 37 Cover 30 and wall 33 a predetermined breaking point 38. The predetermined breaking point 38 or the distance of the constriction 34 from the Bottom wall 36 is less than the thickness of the wall 33, and in such a way that when the parachute signal rocket 10 the closure 29 can be easily blown off.

Die Fig. 4 und 5 zeigen den Verschluß 21, der auch in den Fig. 1 und 2 dargestellt ist. Der Verschluß 21 besteht aus einer Abdeckung 49, die einstückig mit einer Wandung 50 des Außenrohrs 11 ausgebildet ist. Die Abdeckung 49 besteht aus einem unteren, zylindrischen Abschnitt 51 und einem oberen, kegelförmigen Abschnitt 52. Dem unteren Abschnitt 51 sind eine Einschnürung 53 und eine Einkerbung 54 zugeordnet. Die Einschnürung 53 ist von einer Wandung 55 der Abdeckung 49 ausgehend als umlaufende Nut ausgebildet. Die Ausbildung und Bemessung der Einschnürung 53 erfolgt analog zur Einschnürung 34 der Fig. 3. Die Einkerbung 54 ist ausgehend von einer Bodenwandung 56 der Abdeckung 49 einem Randbereich 57 derselben zugeordnet. Die Einkerbung 54 ist im Querschnitt V-förmig ausgebildet, wobei ein Schenkel der Einkerbung 54 durch die Wandung 50 gebildet wird. Die Einkerbung 54 ist demzufolge im Übergangsbereich (Randbereich 57) zwischen Abdeckung 49 und Wandung 50 angeordnet. Die Tiefe der Einkerbung 54 ist derart bemessen, daß im Übergangsbereich eine definierte Sollbruchstelle 58 entsteht. Die Einkerbung 54 verfügt über einen Öffnungswinkel von 10° - 50°, vorzugsweise 30°. Der Öffnungswinkel von 30° hat sich unter dem Gesichtspunkt einer rückstoßfreien Absprengung des Verschlusses 21 als besonders günstig erwiesen.4 and 5 show the closure 21, which is also in the 1 and 2 is shown. The closure 21 consists of a cover 49 which is integral with a wall 50 of the Outer tube 11 is formed. The cover 49 consists of a lower, cylindrical section 51 and an upper, tapered section 52. The lower section 51 are one Constriction 53 and a notch 54 assigned. The constriction 53 is from a wall 55 of the cover 49 starting as a circumferential groove. The training and The constriction 53 is dimensioned analogously to the constriction 34 of FIG. 3. The notch 54 is based on a Bottom wall 56 of the cover 49 an edge region 57 of the same assigned. The notch 54 is V-shaped in cross section formed, with one leg of the notch 54 through the Wall 50 is formed. The notch 54 is therefore in the Transitional area (edge area 57) between cover 49 and Wall 50 arranged. The depth of the notch 54 is such dimension that in the transition area a defined predetermined breaking point 58 arises. The notch 54 has one Opening angle of 10 ° - 50 °, preferably 30 °. The opening angle from 30 ° has been considered a recoil-free Detonation of the closure 21 as particularly favorable proven.

Fig. 5 zeigt die Wirkungsweise des erfindungsgemäß ausgebildeten Verschlusses 21 gemäß Fig. 4, bei einer Krafteinwirkung entgegengesetzt der Richtung (Pfeil 17) des Raketenabschusses (beispielsweise durch einen Fall der Fallschirmsignalrakete 10 auf den Verschluß 21). Bei einer solchen Krafteinwirkung wird die Abdeckung 49 derart verformt, daß diese nach unten, d.h. in Richtung der Krafteinwirkung, nachgibt. Die Verformung der Abdeckung 49 wird durch die Breite der Einschnürung 53 begrenzt. Bei maximaler Verformung der Abdeckung 49 wird im Bereich der Wandung 50 des Außenrohrs 11 die Einschnürung 53 derart zusammengedrückt, daß Abschnitte gegenüberliegender Wandungen 59, 60 der Einschnürung 53 aufeinander liegen. Außerhalb des Bereichs der Wandung 50 bildet die Einschnürung 53 einen Hohlraum 61. Durch die oben geschilderte Ausgestaltung der Einschnürung 53 wird ein durch die Wandung 50 und das Ende der Nut begrenzter Kreisring der Abdeckung 49 gezielt verformt. Die Tiefe der Einschnürung 53 bzw. Nut bestimmt die Breite des Kreisrings. In Verbindung mit der Breite der Einschürung 53 gewährleistet die Tiefe derselben, daß die Verformung der Abdeckung 49 bzw. des Kreisrings begrenzt wird und stets im elastischen Bereich bleibt, so daß die Sollbruchstelle 58 nicht bricht.Fig. 5 shows the operation of the designed according to the invention 4, in the event of a force opposite to the direction (arrow 17) of the missile launch (for example, by dropping the parachute rocket 10 on the closure 21). With such a force the cover 49 is deformed such that it down, i.e. in the direction of the force. The Deformation of the cover 49 is determined by the width of the Constriction 53 limited. At maximum deformation of the Cover 49 is in the area of wall 50 of outer tube 11 the constriction 53 compressed so that sections opposite walls 59, 60 of the constriction 53 one on top of the other lie. Forms outside the area of the wall 50 the constriction 53 a cavity 61. By the above described configuration of the constriction 53 is a the wall 50 and the end of the groove limited circular ring Cover 49 deliberately deformed. The depth of the constriction 53 or groove determines the width of the annulus. Combined with the width of the constriction 53 ensures the depth of the same, that the deformation of the cover 49 or the annulus is limited and always remains in the elastic range, so that the predetermined breaking point 58 does not break.

Eine unter fertigungstechnischen Gesichtspunkten bevorzugte Ausgestaltung eines Verschlusses 62 zeigen die Fig. 6 und 7. Der Verschluß 62 besteht aus einer Abdeckung 63, die mit einer Wandung 64 des Außenrohrs einstückig verbunden ist. Die Abdeckung 63 besteht aus einem unteren, zylindrischen Abschnitt 65 und einem oberen, kegelförmigen Abschnitt 66. Analog zu dem Verschluß 21 gemäß Fig. 4 sind dem unteren Abschnitt 65 eine Einschnürung 67 und eine Einkerbung 68 zugeordnet. Im Unterschied zum Ausführungsbeispiel gemäß Fig. 4 ist die Einschnürung 67 in besonderer Weise ausgebildet. Ausgehend von einer Wandung 69 der Abdeckung 63 ist die Einschnürung 67 als umlaufende Nut ausgebildet. Die Tiefe der Einschnürung 67 ist um ein mehrfaches, insbesondere um ein zweifaches, größer als die Dicke der Wandung 64 des Außenrohrs. Die Breite der Einschnürung ist jedoch aus fertigungstechnischen Gegebenheiten dicker ausgebildet, als beim Ausführungsbeispiel gemäß Fig. 4. Damit die Einschnürung 67 jedoch ihre Funktionalität zur Verformungsbegrenzung der Abdeckung 63 beibehält, sind derselben Stege 70 zugeordnet. Die Stege 70 sind über den Umfang der Einschnürung 67 um einen Winkel von annähernd 90° gegeneinander versetzt. Die Stege 70 begrenzen bei einer Krafteinwirkung entgegengesetzt zur Richtung des Raketenabschusses die Verformung der Abdeckung 63 und halten diese stets im elastischen Bereich.One preferred from a manufacturing point of view 6 and 7 show the configuration of a closure 62. The closure 62 consists of a cover 63 which with a Wall 64 of the outer tube is connected in one piece. The Cover 63 consists of a lower, cylindrical section 65 and an upper, conical section 66. Analogous to that 4 are the lower portion 65 a Constriction 67 and a notch 68 assigned. in the 4 is the difference from the exemplary embodiment according to FIG Constriction 67 formed in a special way. Starting from a wall 69 of the cover 63 is the constriction 67 as circumferential groove formed. The depth of the constriction is 67 a multiple, in particular a double, larger than the thickness of the wall 64 of the outer tube. The width of the Constriction, however, is due to technical manufacturing conditions formed thicker than in the exemplary embodiment according to FIG. 4. So that the constriction 67, however, its functionality Limitation of deformation of the cover 63 are the same Assigned to webs 70. The webs 70 are over the circumference the constriction 67 by an angle of approximately 90 ° to one another transferred. The webs 70 limit when a force is applied opposite to the direction of the missile launch the deformation of the cover 63 and keep it always in elastic range.

Die zuvor erörterte Erfindung kann auch bei anderen Signalmitteln, beispielsweise Signalpatronen, zur Anwendung kommen. Das Abfeuern des Signals erfolgt bei Signalpatronen nicht aus einem Außenrohr, sondern aus einer Patronenhülse. Die Ausgestaltung eines Verschlusses der Patronenhülse kann analog zu den Ausführungsbeispielen nach den Fig. 3 - 7 sein.The invention discussed above can be applied to others Signaling means, for example signal cartridges, for use come. The signal is fired with signal cartridges not from an outer tube, but from a cartridge case. The Design of a closure of the cartridge case can be analog to the embodiments of FIGS. 3-7.

Claims (9)

  1. Signalling means, in particular a signalling rocket, having an outer tube (11) for holding at least one signal, having a cover (30, 49, 63) which is integrally connected to the outer tube (11) and has a bottom wall (36, 56) for closing that end (12) of the outer tube (11) which points towards the cover (30, 49, 63), and having a circumferential constriction (34, 53, 67) in the cover (30, 49 63), whose distance from the bottom wall (36, 56) or from a lowest point of a notch (54, 68) in the bottom wall (56) is less than the thickness of a wall (33, 50, 64) of the outer tube (11) in order to allow the cover (30, 49, 63) to deform elastically when a load acts on it.
  2. Signalling means according to Claim 1, characterized in that the depth of the constriction (34, 53, 67) is greater by a plurality of times, preferably twice, than the thickness of the wall (33, 50, 64) of the outer tube (11).
  3. Signalling means according to Claim 1 or 2, characterized in that the constriction (34, 53, 67) is associated with a side wall (35, 55, 69) of the cover (30, 49, 63).
  4. Signalling means according to one of the preceding claims, characterized in that the constriction (34, 53, 67) is in the form of a circumferential groove.
  5. Signalling means according to one of the preceding claims, characterized by webs (70) in the region of the constriction (67) which is in the form of a groove, with the webs (70) limiting the elastic deformation of the cover (63).
  6. Signalling means according to one of the preceding claims, characterized in that a weak point (38, 58) is associated with the cover (30, 49, 63) and/or with an end region of the outer tube (11) which is associated with the cover (30, 49, 63).
  7. Signalling means according to Claim 6, characterized in that the weak point (58) is formed by a circumferential notch (54, 68), with the notch (54, 68) being associated with a bottom wall (56) of the cover (49, 63).
  8. Signalling means according to Claim 7, characterized in that the notch (54, 68) is associated with an edge region (57) of the bottom wall (56), adjacent to a wall (50, 64) of the outer tube (11).
  9. Signalling means according to Claim 7 or 8, characterized in that the notch (54, 68) has a notch angle of 10° to 50°, in particular 30°.
EP95106002A 1994-04-28 1995-04-21 Signalling device, in particular a signal rocket Expired - Lifetime EP0679860B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9407053U DE9407053U1 (en) 1994-04-28 1994-04-28 Signaling devices, in particular signal rockets
DE9407053U 1994-04-28

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EP0679860A2 EP0679860A2 (en) 1995-11-02
EP0679860A3 EP0679860A3 (en) 1997-01-08
EP0679860B1 true EP0679860B1 (en) 2000-03-15

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Application Number Title Priority Date Filing Date
EP95106002A Expired - Lifetime EP0679860B1 (en) 1994-04-28 1995-04-21 Signalling device, in particular a signal rocket

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DE (2) DE9407053U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6386112B1 (en) * 2001-05-01 2002-05-14 Gregory P. Shelton Aerial pyrotechnic product with retarded post-explosion descent
CN103183132B (en) * 2011-12-29 2015-09-09 任明琪 Launch by power source unit body and aircraft carrier combustion and steam ejector and catapult technique
DE102018122223A1 (en) 2018-09-12 2020-03-12 Rheinmetall Waffe Munition Gmbh Firing unit for ammunition

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2032357A (en) * 1932-10-06 1936-03-03 Max W Fischer Pyrotechnic unit
GB461253A (en) * 1935-08-12 1937-02-12 Horace Ainley Roberts Improvements in or relating to shot gun cartridges
US2918003A (en) * 1957-04-29 1959-12-22 Mine Safety Appliances Co Deep water cartridge
US3127837A (en) * 1961-04-27 1964-04-07 Driaire Inc Shot shell construction
DE1280096B (en) * 1964-10-24 1968-10-10 Nico Pyrotechnik Luminous or signal star
US3782285A (en) * 1972-09-14 1974-01-01 Us Navy Flare cartridge
DE2543935A1 (en) * 1975-10-02 1977-04-07 Dynamit Nobel Ag Shot gun cartridge with sealed cardboard case - is sealed against moisture by plastics film shrunk over case
DE7600548U1 (en) * 1976-01-10 1976-07-15 Comet Gmbh Pyrotechnik-Apparatebau, 2850 Bremerhaven MISSILE BODY
DE7737498U1 (en) * 1977-12-09 1978-09-28 Pyrotechnische Fabrik F. Feistel Kg, 6719 Goellheim DEVICE FOR SHOOTING PYROTECHNICAL SIGNALS OR DIGITAL.
FR2469691B1 (en) * 1979-11-09 1985-11-15 Lacroix E Tous Artifices ELECTROMAGNETIC LURE LAUNCHER WITH SIMPLIFIED LOADING
DE3707062A1 (en) * 1987-01-29 1988-08-25 Comet Pyrotech SIGNALING AGENT, IN PARTICULAR SIGNAL ROCKET OR CARTRIDGE
DE3902381A1 (en) * 1988-01-28 1989-08-10 Comet Pyrotech Firework rocket
DE9001399U1 (en) * 1990-02-07 1990-04-12 Haisch + Straub GmbH, 7332 Eislingen Pointed cap for firework rockets

Also Published As

Publication number Publication date
EP0679860A3 (en) 1997-01-08
DE9407053U1 (en) 1994-07-28
EP0679860A2 (en) 1995-11-02
DE59507978D1 (en) 2000-04-20

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