EP2515068B1 - Device and method for air-tight covering of a tracer or the like - Google Patents

Device and method for air-tight covering of a tracer or the like Download PDF

Info

Publication number
EP2515068B1
EP2515068B1 EP12161545.4A EP12161545A EP2515068B1 EP 2515068 B1 EP2515068 B1 EP 2515068B1 EP 12161545 A EP12161545 A EP 12161545A EP 2515068 B1 EP2515068 B1 EP 2515068B1
Authority
EP
European Patent Office
Prior art keywords
covering
projectile
tracer
bore
cover
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.)
Active
Application number
EP12161545.4A
Other languages
German (de)
French (fr)
Other versions
EP2515068A2 (en
EP2515068A3 (en
Inventor
Andreas Pfaff
Philipp Bucheli
Karlheinz Fehrenbach
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.)
RWM Schweiz AG
Original Assignee
RWM Schweiz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RWM Schweiz AG filed Critical RWM Schweiz AG
Priority to EP15194890.8A priority Critical patent/EP3002543A1/en
Publication of EP2515068A2 publication Critical patent/EP2515068A2/en
Publication of EP2515068A3 publication Critical patent/EP2515068A3/en
Application granted granted Critical
Publication of EP2515068B1 publication Critical patent/EP2515068B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/38—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of tracer type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/38—Range-increasing arrangements
    • F42B10/40—Range-increasing arrangements with combustion of a slow-burning charge, e.g. fumers, base-bleed projectiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
    • F42B33/001—Devices or processes for assembling ammunition, cartridges or cartridge elements from parts

Definitions

  • the invention is concerned with a device and a method for covering, for example, a tracer or the like, which is usually located in the rear part of a projectile body and with the theme that the tracer or such content must be hermetically sealed, since the otherwise penetrating moisture etc. may cause, for example, the tracer - Pyrotechnics- no longer or only insufficiently burned.
  • a method is proposed in which a cover, preferably a cover ring, during the forming process by an axial feed movement of a (rigid) punch, preferably made of metal, is pressed radially into a preferably completely circumferential groove contour of the projectile body.
  • the punch has an outer dimension that is pending from the axial position of the punch relative to the cover.
  • an additional part can be additionally screwed on the rear of the projectile.
  • the additional part includes, inter alia, a housing and an integrated housing in the opening, which is closed by a plug. To seal between the plug and the rear opening of the housing is a ring seal.
  • the DE 76 28 540 U1 discloses a practice bullet with a tracer.
  • a perforated and a foil disc are introduced.
  • the lower edge of the bullet casing is sealingly beaded around, which ensures that the tracer is protected against moisture.
  • the disadvantage of the deformation is, inter alia, that often conflicting requirements are made of the projectile body material.
  • hard or hard to non-deformable material properties are presumed, while for the forming process such as crimping, caulking etc. soft or ductile material properties are the prerequisite. Therefore, the area of the projectile body material to be reshaped is softened by the use of heat treatment methods, which is very complicated and time-consuming.
  • the process stability is also to be kept under great effort.
  • the formation of cracks in the material which may occur during curing or during forming, can not be ruled out even by the subsequent or the forming process preceding heat treatment process and can lead to failure of the cover as possible sources of error.
  • the screw and nut only have to be subjected to a surface treatment, for example hard anodization, but the outlay for assembly is higher since measures for securing the screw are necessary. Guide surfaces for better installation take up a corresponding space.
  • the weight of a screw to cover the tracer is higher than that of a cover ring.
  • the invention has the object to provide a device and a method that allow better coverage, for example, the tracer.
  • the invention is based on the idea not to transform the projectile body material but the cover itself.
  • a part of the cover is radially pressed by a preferably rigid die, which only needs to move axially and is provided with a special outer contour, pressed into a circumferential groove contour in the projectile body.
  • the outer contour should be matched to the groove contour (or vice versa), in order that the material of the cover radially deformed by the punch located in the forward movement can be pressed into the groove contour of the projectile body and the cover no longer has any degrees of freedom after the forming, so that it is fixed to the luminous track or the like.
  • the cover is preferably a cover ring.
  • the cover Since the cover is deformed from the inside to the outside, this is pressed by the acceleration, mass and centrifugal forces occurring during the launch of the projectile against the projectile body, so that no flying parts arise.
  • the positioning of the cover by means of a preferably rigid die guarantees high process stability, which is a prerequisite to the safety requirements in order to prevent it from flying off parts due to errors in the forming process or inadequate heat treatment.
  • This idea can also be applied independently of the material properties of the projectile body and allows maximum flexibility regarding the materials to be used for the projectile body.
  • the Fig. 1 shows in a simplified representation of the basic principle of the method. 1 with a rear part of a projectile 10 is designated, wherein the rear part 1 in a bore 11 a tracer 2, 3 receives.
  • the tracer 2, 3 in turn consists of a set of flares 2 and 3 Anfeuerung, which are preferably pressed in the bore 11.
  • the tracer 2, 3 are in this case pyrotechnic substances which react with other chemical substances as contained in the propellant charge powder.
  • a cover 4 is used to seal the tracer 2, 3 from the environment until the time of firing of the projectile 10 from a weapon, not shown, to avoid contact of the substances with humid air, etc.
  • the cover 4 is fixed by a cover 6 in the rear part 1.
  • the cover 4 and the cover 6 are inserted into the recess 12 provided in the projectile body 10, as in Fig. 2 shown. Subsequently, the cover ring 6 is pressed with a punch 5, preferably made of metal, in the bore 11 of the rear part 1 of the projectile body 10 ( Fig.2 ), wherein the punch 5 in the forward movement or the axial movement and due to its (special) outer contour 7, the cover ring 6 in the preferably circumferential groove 8 in the projectile body or rear part 1 deformed. After pressing the cover ring 6 including cover 4, the cover of the tracer 2, 3 is ensured in the bore 11 relative to the environment, the forming process is completed ( Figure 3 ).
  • Fig. 4 shows a sectional view of a cover 6, which is preferably designed as a cover ring. This fixes the cover 4.
  • the cover 4 and the cover 6 can also form a one-piece constructive unit.
  • this method is not limited to the sealing of a luminous trace in the rear part 1 of a projectile 10.
  • Holes are here also understood as cavities, recesses, openings or the like in the projectile body, ammunition body, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Automatic Assembly (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

Die Erfindung beschäftig sich mit einer Vorrichtung und einem Verfahren zur Abdeckung, beispielsweise einer Leuchtspur oder dergleichen, die sich in der Regel im Heckteil eines Geschosskörpers befindet und mit der Thematik, dass die Leuchtspur oder derartige Inhalte luftdicht verschlossen sein muss, da die sonst eindringende Feuchtigkeit etc. dazu führen kann, dass beispielsweise die Leuchtspur - Pyrotechnik- nicht mehr oder nur unzureichend abbrennt. Dazu wird ein Verfahren vorgeschlagen, bei dem eine Abdeckung, bevorzugt ein Abdeckring, während des Umformprozesses durch eine axiale Vorschubbewegung eines (starren) Stempels, vorzugsweise aus Metall, radial in eine vorzugsweise vollständig umlaufende Nutkontur des Geschosskörpers gepresst wird. Der Stempel besitzt ein Außenmaß, das von der axialen Position des Stempels gegenüber dem der Abdeckung anhängig ist.The invention is concerned with a device and a method for covering, for example, a tracer or the like, which is usually located in the rear part of a projectile body and with the theme that the tracer or such content must be hermetically sealed, since the otherwise penetrating moisture etc. may cause, for example, the tracer - Pyrotechnics- no longer or only insufficiently burned. For this purpose, a method is proposed in which a cover, preferably a cover ring, during the forming process by an axial feed movement of a (rigid) punch, preferably made of metal, is pressed radially into a preferably completely circumferential groove contour of the projectile body. The punch has an outer dimension that is pending from the axial position of the punch relative to the cover.

In der Praxis ist vorgesehen, dass der luftdichte Verschluss durch eine Abdeckscheibe etc., in der Regele aus Messing, realisiert wird. Diese wird durch weitere Teile fixiert, wie beispielsweise einem Abdeckring. Dabei wird der Abdeckring beispielsweise durch Umformung des Geschosskörpermaterials gehalten. Weitere Lösungen sind in der Richtung bekannt, dass eine zusätzliche Schraube oder Mutter in das Heckteil des Geschosskörpers geschraubt wird.In practice, it is provided that the airtight closure by a cover plate, etc., in the rule of brass, is realized. This is fixed by other parts, such as a cover ring. In this case, the cover ring is held for example by deformation of the projectile body material. Other solutions are known in the direction that an additional screw or nut is screwed into the rear part of the projectile body.

Aus der EP 0 180 515 A1 ist eine Einrichtung zum Reduzieren des Luftwiderstandes von Munition und damit versehene Munition bekannt. Dazu ist vorgesehen, dass ein Zusatzteil am Heck des Geschosses zusätzlich aufgeschraubt werden kann. Dass Zusatzteil umfasst unter anderem ein Gehäuse und eine im Gehäuse eingebundene Öffnung, die durch einen Stöpsel verschlossen ist. Zur Abdichtung zwischen dem Stöpsel und der hinteren Öffnung des Gehäuses dient eine Ringdichtung.From the EP 0 180 515 A1 a device for reducing the air resistance of ammunition and thus provided ammunition is known. For this purpose, it is provided that an additional part can be additionally screwed on the rear of the projectile. The additional part includes, inter alia, a housing and an integrated housing in the opening, which is closed by a plug. To seal between the plug and the rear opening of the housing is a ring seal.

Die DE 76 28 540 U1 offenbart ein Übungsgeschoss mit einem Leuchtspursatz. Zur Abdichtung des Leuchtsatzes in einer zylindrischen Bohrung im Heckteil des Geschosses werden eine Loch- und eine Folienscheibe eingebracht. Gegen die Lochscheibe wird der untere Rand der Geschosshülle dichtend umbördelt, womit sichergestellt ist, dass die Leuchtspur gegen Feuchtigkeit geschützt ist.The DE 76 28 540 U1 discloses a practice bullet with a tracer. To seal the flare in a cylindrical bore in the rear part of the projectile a perforated and a foil disc are introduced. Against the perforated disc, the lower edge of the bullet casing is sealingly beaded around, which ensures that the tracer is protected against moisture.

Der Nachteil bei der Umformung liegt unter anderem darin, dass oftmals gegensätzliche Anforderungen an das Geschosskörpermaterial gestellt werden. Für die endballistische Wirksamkeit werden harte oder schwer bis nicht verformbare Materialeigenschaften vorausgesetzt, während für den Umformprozess wie Bördeln, Verstemmen etc. weiche oder duktile Materialeigenschaften die Voraussetzung sind. Daher wird der umzuformende Bereich des Geschosskörpermaterials durch Anwendung von Wärmebehandlungsverfahren in den Zustand weich bzw. duktil überführt, was jedoch sehr aufwändig und kosten- wie auch zeitintensiv ist. Die Prozessstabilität ist zudem unter großem Aufwand einzuhalten. Die Bildung von Rissen im Material, die beim Härten oder bei der Umformung entstehen können, sind selbst durch die anschließende oder dem Umformungsprozess voran gegangene Wärmebehandlungsverfahren nicht auszuschließen und können als mögliche Fehlerquellen zum Versagen der Abdeckung führen. Schraube und Mutter müssen hingegen nur einer Oberflächenbehandlung unterzogen werden, beispielsweise Hartanodisieren, der Aufwand bei der Montage ist hingegen höher, da Maßnahmen zur Schraubensicherung notwendig sind. Führungsflächen zur besseren Montage nehmen einen entsprechenden Bauraum in Anspruch. Zudem ist das Gewicht einer Schraubverbindung zur Abdeckung der Leuchtspur höher als das eines Abdeckringes.The disadvantage of the deformation is, inter alia, that often conflicting requirements are made of the projectile body material. For end ballistic effectiveness, hard or hard to non-deformable material properties are presumed, while for the forming process such as crimping, caulking etc. soft or ductile material properties are the prerequisite. Therefore, the area of the projectile body material to be reshaped is softened by the use of heat treatment methods, which is very complicated and time-consuming. The process stability is also to be kept under great effort. The formation of cracks in the material, which may occur during curing or during forming, can not be ruled out even by the subsequent or the forming process preceding heat treatment process and can lead to failure of the cover as possible sources of error. On the other hand, the screw and nut only have to be subjected to a surface treatment, for example hard anodization, but the outlay for assembly is higher since measures for securing the screw are necessary. Guide surfaces for better installation take up a corresponding space. In addition, the weight of a screw to cover the tracer is higher than that of a cover ring.

Hier stellt sich die Erfindung die Aufgabe, eine Vorrichtung als auch ein Verfahren aufzuzeigen, die eine bessere Abdeckung beispielsweise der Leuchtspur ermöglichen.Here, the invention has the object to provide a device and a method that allow better coverage, for example, the tracer.

Gelöst wird die Aufgabe durch die Merkmale des Patentanspruchs 1, 4 sowie 5. Vorteilhafte Ausführungen sind in den Unteransprüchen aufgezeigt.The object is achieved by the features of patent claims 1, 4 and 5. Advantageous embodiments are shown in the subclaims.

Der Erfindung liegt die Idee zugrunde, nicht das Geschosskörpermaterial sondern die Abdeckung selbst umzuformen. Dazu wird ein Teil der Abdeckung radial durch einen vorzugsweise starren Stempel, der sich ausschließlich nur axial zu bewegen braucht und mit einer speziellen Außenkontur versehen ist, in eine umlaufende Nutkontur im Geschosskörper gepresst. Die Außenkontur sollte dabei auf die Nutkontur (oder umgekehrt) abgestimmt sein, damit das von dem in der Vorwärtsbewegung befindlichen Stempel radial umgeformte Material der Abdeckung in die Nutkontur des Geschosskörpers hineingedrückt werden kann und die Abdeckung nach der Umformung über keinerlei Freiheitsgrade mehr verfügt, sodass diese zur Leuchtspur oder dergleichen fixiert ist. Bei der Abdeckung handelt es sich bevorzugt um einen Abdeckring.The invention is based on the idea not to transform the projectile body material but the cover itself. For this purpose, a part of the cover is radially pressed by a preferably rigid die, which only needs to move axially and is provided with a special outer contour, pressed into a circumferential groove contour in the projectile body. The outer contour should be matched to the groove contour (or vice versa), in order that the material of the cover radially deformed by the punch located in the forward movement can be pressed into the groove contour of the projectile body and the cover no longer has any degrees of freedom after the forming, so that it is fixed to the luminous track or the like. The cover is preferably a cover ring.

Da die Abdeckung von innen nach außen verformt wird, wird diese durch die beim Abschuss des Geschosses auftretenden Beschleunigungs-, Massen- und Fliehkräfte gegen den Geschosskörper gedrückt, sodass keine wegfliegenden Teile entstehen. Die Positionierung der Abdeckung mittels eines bevorzugt starren Stempels garantiert eine hohe Prozessstabilität, die eine Voraussetzung an die Sicherheitsanforderungen ist, um zu verhindern, dass es von wegfliegenden Teilen aufgrund von Fehlern bei dem Umformprozess oder einer unzureichenden Wärmebehandlung kommt.Since the cover is deformed from the inside to the outside, this is pressed by the acceleration, mass and centrifugal forces occurring during the launch of the projectile against the projectile body, so that no flying parts arise. The positioning of the cover by means of a preferably rigid die guarantees high process stability, which is a prerequisite to the safety requirements in order to prevent it from flying off parts due to errors in the forming process or inadequate heat treatment.

Diese Idee kann zudem unabhängig von den Materialeigenschaften des Geschosskörpers angewandt werden und ermöglicht ein Höchstmaß an Flexibilität betreffend den einzusetzenden Materialien für den Geschosskörper.This idea can also be applied independently of the material properties of the projectile body and allows maximum flexibility regarding the materials to be used for the projectile body.

Der nunmehr einfachere Fertigungsprozess ist prozessstabil, kosten- und zeitoptimiert, da es zu einer Reduzierung der Anzahl der einzelnen Arbeitsschritte als auch der fertigungstechnischen Anforderung selbst kommt. Fehlermöglichkeiten, wie beispielsweise eine unzureichende Verformung der Abdeckung oder aber auch ein unrichtiger Sitz, sind auch per Sichtkontrolle leicht erfassbar.The now simpler manufacturing process is process-stable, cost and time-optimized, as it comes to a reduction in the number of individual steps and the manufacturing requirement itself. Possible errors, such as an insufficient deformation of the cover or even an incorrect seat, are easily detected by visual inspection.

Anhand eines Ausführungsbeispiels mit Zeichnung soll die Erfindung näher erläutert werden. Es zeigt:

Fig. 1-3
Verfahrensschritte zur Abdeckung einer Leuchtspur,
Fig. 4
eine Schnittdarstellung des Abdeckringes aus den Figuren.
Reference to an embodiment with drawing, the invention will be explained in more detail. It shows:
Fig. 1-3
Method steps for covering a tracer track,
Fig. 4
a sectional view of the cover ring of the figures.

Die Fig. 1 zeigt in einer vereinfachten Darstellung des Grundprinzips des Verfahrens. Mit 1 ist ein Heckteil eines Geschosses 10 bezeichnet, wobei das Heckteil 1 in einer Bohrung 11 eine Leuchtspur 2, 3 aufnimmt. Die Leuchtspur 2, 3 besteht ihrerseits aus einem Leuchtsatz-Pressling 2 und einer Anfeuerung 3, die in der Bohrung 11 bevorzugt eingepresst sind. Bei der Leuchtspur 2, 3 handelt es sich in diesem Fall um pyrotechnische Substanzen, die mit anderen chemischen Substanzen, wie sie im Treibladungspulver enthalten sind, reagieren. Eine Abdeckscheibe 4 dient zur Abdichtung der Leuchtspur 2, 3 gegenüber der Umgebung bis zum Zeitpunkt des Verschießens des Geschosses 10 aus einer nicht näher dargestellten Waffe, um einen Kontakt der Substanzen mit feuchter Luft etc. zu vermeiden. Die Abdeckscheibe 4 wird durch einen Abdeckring 6 im Heckteil 1 fixiert.The Fig. 1 shows in a simplified representation of the basic principle of the method. 1 with a rear part of a projectile 10 is designated, wherein the rear part 1 in a bore 11 a tracer 2, 3 receives. The tracer 2, 3 in turn consists of a set of flares 2 and 3 Anfeuerung, which are preferably pressed in the bore 11. The tracer 2, 3 are in this case pyrotechnic substances which react with other chemical substances as contained in the propellant charge powder. A cover 4 is used to seal the tracer 2, 3 from the environment until the time of firing of the projectile 10 from a weapon, not shown, to avoid contact of the substances with humid air, etc. The cover 4 is fixed by a cover 6 in the rear part 1.

Nach dem konventionellen Einpressen der Leuchtspur 2, 3 werden die Abdeckscheibe 4 und der Abdeckring 6 in die dafür vorgesehene Aussparung 12 im Geschosskörper 10 eingelegt, wie in Fig. 2 dargestellt. Anschließend wird der Abdeckring 6 mit einem Stempel 5, vorzugsweise aus Metall, in die Bohrung 11 des Heckteils 1 des Geschosskörpers 10 eingepresst (Fig.2), wobei der Stempel 5 in der Vorwärtsbewegung bzw. der axialen Bewegung und aufgrund seiner (speziellen) Außenkontur 7 den Abdeckring 6 in die vorzugsweise umlaufende Nut 8 im Geschosskörper bzw. Heckteil 1 verformt. Nach dem Verpressen des Abdeckringes 6 inklusive Abdeckscheibe 4 ist die Abdeckung der Leuchtspur 2, 3 in der Bohrung 11 gegenüber der Umgebung sichergestellt, der Umformprozess beendet (Fig.3).After conventional insertion of the tracer 2, 3, the cover 4 and the cover 6 are inserted into the recess 12 provided in the projectile body 10, as in Fig. 2 shown. Subsequently, the cover ring 6 is pressed with a punch 5, preferably made of metal, in the bore 11 of the rear part 1 of the projectile body 10 ( Fig.2 ), wherein the punch 5 in the forward movement or the axial movement and due to its (special) outer contour 7, the cover ring 6 in the preferably circumferential groove 8 in the projectile body or rear part 1 deformed. After pressing the cover ring 6 including cover 4, the cover of the tracer 2, 3 is ensured in the bore 11 relative to the environment, the forming process is completed ( Figure 3 ).

Fig. 4 zeigt in einer Schnittdarstellung eine Abdeckung 6, die bevorzugt als Abdeckring ausgeführt ist. Dieser fixiert die Abdeckscheibe 4. Fig. 4 shows a sectional view of a cover 6, which is preferably designed as a cover ring. This fixes the cover 4.

Alternativ können die Abdeckscheibe 4 und der Abdeckring 6 auch eine einteilige konstruktive Einheit bilden.Alternatively, the cover 4 and the cover 6 can also form a one-piece constructive unit.

Es versteht sind, dass dieses Verfahren nicht auf die Abdichtung einer Leuchtspur im Heckteil 1 eines Geschosses 10 beschränkt ist. So lassen sich mit diesem Verfahren in einfacher Art und Weise auch andere Komponenten, die sich in einer Bohrung oder einem Hohlraum in einem Geschoss, einer Munition etc. befinden, sicher abdichten. Unter Bohrung werden hierbei auch Hohlräume, Ausnehmungen, Öffnungen oder dergleichen im Geschosskörper, Munitionskörper etc. verstanden.It is understood that this method is not limited to the sealing of a luminous trace in the rear part 1 of a projectile 10. Thus, with this method in a simple manner, other components that are in a hole or a cavity in a bullet, ammunition, etc., safely seal. Holes are here also understood as cavities, recesses, openings or the like in the projectile body, ammunition body, etc.

Claims (8)

  1. Fixing device for an air-tight covering (6) in a bore (11) in a projectile (10) with the covering (6), a tracer (2, 3) or other components being located in the bore (11) in the rear part (1) of the projectile (10), characterized by
    • the projectile (10) having a grooved contour (8) in the rear part (1),
    • the covering (6) being implemented as a covering ring which fixes a covering disc (4) of the covering (6) in the rear part (1),
    • a plunger (5) as part of the fixing device, wherein
    • the plunger (5) has a specific external contour (7) which is matched to the grooved contour (8) of the body of the projectile (10) or vice versa,
    • the plunger (5), in a forward movement or in an axial movement, forces the radially reshaped material of the covering ring (6) into the grooved contour (8) of the body of the projectile (10).
  2. Device according to Claim 1, characterized in that the grooved contour (8) is circumferential.
  3. Device according to Claim 1, characterized in that the grooved contour (8) is completely circumferential.
  4. Device according to one of Claims 1 to 3, characterized in that the plunger (5) consists of a rigid material such as a metal.
  5. Device according to one of Claims 1 to 4, characterized in that the covering ring (6) and the covering disc (4) form a one-part structural unit.
  6. Method for the air-tight sealing of a bore (11) in a projectile (10) with a covering (6), a tracer (2, 3) or other components being located in the bore (11) in the rear part (1) of the projectile (10), with the aid of the device according to one of Claims 1 to 5, characterized by the steps:
    - laying the covering disc (4) and the covering (6) in a recess (12) provided for that purpose in the body of the projectile (10),
    - pressing the covering (6) into the grooved contour (8) in the projectile (10) above and/or within the bore (11) by means of an axial movement of the plunger (5) with respect to the covering (6) to be deformed into the grooved contour (8) in the body of the projectile (10) in order to fix the covering disc (4) by means of the covering (6).
  7. Method according to Claim 6, characterized in that the tracer (2, 3) is pressed into the bore (11) in the projectile (10) before the covering ring (6) is deformed.
  8. Method according to Claim 6 or 7, characterized in that the covering ring (6) is deformed from the inside towards the outside.
EP12161545.4A 2011-04-21 2012-03-27 Device and method for air-tight covering of a tracer or the like Active EP2515068B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15194890.8A EP3002543A1 (en) 2011-04-21 2012-03-27 Projectile with a cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011018475A DE102011018475A1 (en) 2011-04-21 2011-04-21 Apparatus and method for airtight covering a tracer or the like

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP15194890.8A Division-Into EP3002543A1 (en) 2011-04-21 2012-03-27 Projectile with a cover
EP15194890.8A Division EP3002543A1 (en) 2011-04-21 2012-03-27 Projectile with a cover

Publications (3)

Publication Number Publication Date
EP2515068A2 EP2515068A2 (en) 2012-10-24
EP2515068A3 EP2515068A3 (en) 2013-03-27
EP2515068B1 true EP2515068B1 (en) 2016-01-20

Family

ID=45954405

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12161545.4A Active EP2515068B1 (en) 2011-04-21 2012-03-27 Device and method for air-tight covering of a tracer or the like
EP15194890.8A Ceased EP3002543A1 (en) 2011-04-21 2012-03-27 Projectile with a cover

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15194890.8A Ceased EP3002543A1 (en) 2011-04-21 2012-03-27 Projectile with a cover

Country Status (3)

Country Link
US (1) US9188415B2 (en)
EP (2) EP2515068B1 (en)
DE (1) DE102011018475A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018115072A1 (en) * 2018-06-22 2019-12-24 Rheinmetall Waffe Munition Gmbh De-activatable base bleed
US11965721B2 (en) * 2022-09-13 2024-04-23 General Dynamics Ordnance and Tactical Systems—Canada, Inc. Closure disk assembly for tracer projectile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191229393A (en) * 1912-12-20 1913-05-29 William John Mellersh-Jackson Improvements in or relating to Projectiles.
FR498380A (en) * 1914-10-14 1920-01-09 Samuel Dewey Cushing Improvements to projectiles
US4249466A (en) * 1977-07-21 1981-02-10 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Sabot projectile having a pyrotechnic composition
US4987672A (en) * 1989-07-28 1991-01-29 Fuji Valve Co., Ltd. Method of partitioning the internal space of a hollow cylindrical member

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE361070C (en) 1922-10-10 Harry Crane Dodge Fire pipes for projectiles
DE707002C (en) 1936-04-05 1941-06-11 Westfaelisch Anhaltische Spren Attachment of the sleeve containing the flare in a pressure-resistant socket of the tracer bullet
US2336143A (en) * 1941-01-04 1943-12-07 Remington Arms Co Inc Method of making projectiles
US2394249A (en) * 1941-12-23 1946-02-05 Mcgahey Mfg Company Cartridge
US2402018A (en) * 1943-03-11 1946-06-11 Remington Arms Co Inc Method of making incendiary bullets
US3291049A (en) * 1952-05-22 1966-12-13 Aaron L Hitchens Impact spotter bullet
NL7701244A (en) * 1976-03-23 1977-09-27 Diehl Fa SPLINTER SHELL FOR GRANATE COMBAT HEAD AND THE LIKE.
NO137297C (en) * 1976-07-01 1978-02-01 Raufoss Ammunisjonsfabrikker PROJECT.
DE7628540U1 (en) * 1976-09-11 1977-03-17 Rheinmetall Gmbh, 4000 Duesseldorf PRACTICE FLOOR
EP0072050B1 (en) 1981-08-05 1985-10-09 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Process to fasten a tracer case in a hole at the rear of a projectile
FR2572512B1 (en) * 1984-10-25 1987-09-25 Luchaire Sa DEVICE, ADAPTABLE ON MACHINERY OR AMMUNITION, SUCH AS ARTILLERY PROJECTILES, INTENDED TO REDUCE THEIR PANT TRAIL
US4940375A (en) 1989-05-19 1990-07-10 Textron Inc. Clinch type fastener structure and tooling
DE4109371A1 (en) * 1991-03-22 1992-09-24 Bernd Buedenbender CONTAINER MADE FROM METAL SHEET, IN PARTICULAR BARREL
DE4415341A1 (en) * 1994-05-02 1995-11-09 Teves Gmbh Alfred Closing device for closing pressure-carrying channels in a housing
DE19513992C2 (en) 1995-04-13 1998-12-24 Daimler Benz Ag Axial fixation of a shaft-hub connection
US6752085B2 (en) * 2002-05-06 2004-06-22 Lockheed Martin Corporation Method and apparatus for releasably attaching a closure plate to a casing
US6796244B2 (en) * 2002-12-04 2004-09-28 Denel (Proprietary) Limited Opening and closing a container
DE102004033017A1 (en) * 2004-07-08 2006-02-09 Ruag Ammotec Gmbh Hard core shell with flare and process for its production
DE102009027146A1 (en) 2009-06-24 2010-12-30 Robert Bosch Gmbh Fuel high-pressure pump for fuel system of internal combustion engine, has suction side low pressure area, in which overflow valve is arranged, where overflow valve has valve housing with inlet, outlet, valve body and valve spring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191229393A (en) * 1912-12-20 1913-05-29 William John Mellersh-Jackson Improvements in or relating to Projectiles.
FR498380A (en) * 1914-10-14 1920-01-09 Samuel Dewey Cushing Improvements to projectiles
US4249466A (en) * 1977-07-21 1981-02-10 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Sabot projectile having a pyrotechnic composition
US4987672A (en) * 1989-07-28 1991-01-29 Fuji Valve Co., Ltd. Method of partitioning the internal space of a hollow cylindrical member

Also Published As

Publication number Publication date
US20120312148A1 (en) 2012-12-13
DE102011018475A1 (en) 2012-10-25
EP2515068A2 (en) 2012-10-24
US9188415B2 (en) 2015-11-17
EP2515068A3 (en) 2013-03-27
EP3002543A1 (en) 2016-04-06

Similar Documents

Publication Publication Date Title
DE102009022495A1 (en) Method for producing a large-caliber explosive projectile and explosive projectile, produced by this method
WO2013182557A1 (en) Training projectile and training cartridge
DE102014015674A1 (en) cartridge
DE7818115U1 (en) DRIVING MIRROR FLOOR WITH PYROTECHNICAL SET
EP2515068B1 (en) Device and method for air-tight covering of a tracer or the like
EP2176621A1 (en) Drive or guide cage and method for securing such cages
WO2013150095A1 (en) Fin-stabilized full-caliber training projectile, and method for producing same
EP2834589B1 (en) Fin-stabilized full-caliber training projectile, and method for producing same
EP2828607B1 (en) Fin-stabilized full-calibre practice projectile
EP3601935B1 (en) Adaptive projectile
WO2018095783A1 (en) Pyrotechnic active body
EP2828609B1 (en) Fin-stabilized full-calibre practice projectile
EP2828606B1 (en) Fin-stabilized full-calibre practice projectile
DE3804847C2 (en)
DE10354011A1 (en) Sleeve bottom for large caliber ammunition and method for its production
DE102012006895B3 (en) Control surface-stabilized full caliber-practice projectile has solid head portion and annular control surface body that is adjoined to rear side of head part, where practice projectile is circumferentially provided with sealing system
WO2010025891A1 (en) Mortar grenade
DE202014105535U1 (en) Ball lock with sealing lip for a projectile
DE102007048992A1 (en) Cartridge for firearm, has recess or flat area provided at outer surface of housing, and cut surface that is formed by transition of inner surface of side wall of housing to inner surface of projectile base
DE202007017271U1 (en) Cartridge for a firearm
WO2014202048A1 (en) Spacer element, shaped charge body, explosive charge and associated kit
DE1578223B (en) Case for shotgun shells

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: F42B 12/38 20060101AFI20130218BHEP

Ipc: F42B 33/00 20060101ALI20130218BHEP

17P Request for examination filed

Effective date: 20130926

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20131218

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150727

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 771928

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012005759

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: WEINMANN ZIMMERLI, CH

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20160120

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Ref country code: NL

Ref legal event code: MP

Effective date: 20160120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160421

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160520

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160520

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012005759

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160327

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

26N No opposition filed

Effective date: 20161021

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 771928

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120327

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160120

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502012005759

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502012005759

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502012005759

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230402

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240320

Year of fee payment: 13

Ref country code: GB

Payment date: 20240320

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20240322

Year of fee payment: 13

Ref country code: FR

Payment date: 20240327

Year of fee payment: 13