EP1543288A1 - Rifled slug - Google Patents

Rifled slug

Info

Publication number
EP1543288A1
EP1543288A1 EP03798063A EP03798063A EP1543288A1 EP 1543288 A1 EP1543288 A1 EP 1543288A1 EP 03798063 A EP03798063 A EP 03798063A EP 03798063 A EP03798063 A EP 03798063A EP 1543288 A1 EP1543288 A1 EP 1543288A1
Authority
EP
European Patent Office
Prior art keywords
front part
rear part
cavity
shotgun
shaped
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
EP03798063A
Other languages
German (de)
French (fr)
Other versions
EP1543288B1 (en
Inventor
Peter Mank
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.)
Brenneke Wilhelm GmbH and Co KG
Original Assignee
Brenneke Wilhelm GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brenneke Wilhelm GmbH and Co KG filed Critical Brenneke Wilhelm GmbH and Co KG
Publication of EP1543288A1 publication Critical patent/EP1543288A1/en
Application granted granted Critical
Publication of EP1543288B1 publication Critical patent/EP1543288B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/10—Ball or slug shotgun cartridges

Definitions

  • the present invention relates to a shotgun barrel with the features of the preamble of claim 1.
  • Such a shotgun barrel is described in EP 0 341 543 B1.
  • the upper part of the rear part of this floor is designed as a Nollkorper. It has a slight radial oversize compared to the blind hole in the lead head, so that it has to be inserted into it under constraint. Subsequently, at several points on the circumference of the lead head, preferably at three points of the lead head which are evenly distributed over the circumference, lead is driven radially inwards at points where the displaced amount of lead flows into a circumferential ut of the upper part of the rear part.
  • the piston-like lower part moves upwards on the rod-shaped central part after the predetermined breaking point has torn, until its upper side strikes the underside of the upper part.
  • a barb-shaped projection running around the rod-shaped central part holds the lower part on the central part, thus preventing the central part from detaching from the rod-shaped central part to the rear during the flight phase of the projectile.
  • the rear end of the rod-shaped central part protrudes from the rear of the piston-like lower part. This is unfavorable for the outer ballistics of the projectile due to the resulting flow conditions in the rear area of the rear part.
  • the fact that the rearward projecting end of the rod-shaped middle part is uneven in its outer shape due to the described manufacturing process also has a disadvantage in this regard.
  • the object of the present invention is to improve a generic shotgun barrel in such a way that the precision increases, i.e. the scatter in the target is reduced.
  • this object is achieved by a shotgun barrel having the features of claim 1.
  • the predetermined breaking point is therefore between the hollow upper part and the rod-shaped central part. At this point it can be produced much more precisely and also more cost-effectively than at the point known from the prior art and discussed above.
  • the lower tolerances of the predetermined breaking point result in tearing with smaller gas pressure fluctuations, i.e. the gas pressure range in which the predetermined breaking point tears is smaller than in the known shotgun barrel. This has an immediate positive impact on the target accuracy.
  • Another advantage of the shotgun barrel projectile according to the invention can be seen in the fact that the rear end of the rear part in the flight phase is formed by the piston-like rear part which is precisely defined in shape. This results in defined flow conditions which have a positive influence on the outer ballistics of the projectile.
  • 1 is a side view of a shotgun bullet before firing
  • FIG. 2 shows the shotgun barrel according to FIG. 1 after the shot has been developed
  • FIG. 3 is a perspective view of the rear part of the shotgun barrel before the shot is developed
  • FIG. 4 shows a side view of the rear part corresponding to FIG. 3,
  • FIG. 5 shows a section A-A according to FIG. 4,
  • FIG. 6 shows an illustration according to FIG. 5 after shot development.
  • Fig. 1 shows a shotgun barrel, which is loaded in this form or in this state by the manufacturers. It consists of a heavy lead head 1 and a lighter rear part 2 made of plastic. Due to this mass distribution, the shotgun barrel is stabilized after leaving the barrel of a shotgun on the flight according to the arrow principle, since the center of gravity lies in front of the air attack point.
  • the lead head 1 has a substantially cylindrical shape and a tip 3 on its front end face, which the to improve air resistance.
  • Distributed on the circumference are inclined guide ribs 4. These guide ribs 4 allow passage through the choke of a weapon, since they are pushed away when passing through the choke due to the ductility of the alloyed lead. The load on the choke when firing with shotgun bullets is therefore not greater than with lead shot.
  • the rear part 2 is made in one piece from plastic using injection molding technology. It consists of a front part 5, a middle part 6 and a rear part 7.
  • the front part 5 has a hollow cylindrical pin 8 which merges with the middle part 6 in a collar 9 of larger diameter.
  • the hollow-cylindrical pin 8 is seated with a slight excess in a corresponding cylindrical chamber in the lead head 1, which does not appear from the drawing.
  • the captive connection of the lead head 1 and the rear part 2 takes place in that lead is pressed into a circumferential groove 10 of the hollow cylindrical pin 8 in the manner of a punch in the manner of a punch.
  • a punch 11 can be seen from the representations according to FIGS. 1 and 2. Overall, the connection takes place by means of two or three blows 11 distributed evenly over the circumference.
  • the collar 9 of the front part 5 serves to support the rear end face of the lead head 1.
  • the front part 5 is equipped with four air outflow channels 12, which are evenly distributed over the circumference.
  • these air outflow channels 12 create a connection between the interior of the hollow cylindrical pin 8 and the atmosphere. They extend through the front end wall of the hollow cylindrical pin 8, which in the assembled state rests against the bottom of the chamber in the lead head 1, and then run outwards on the outside of the hollow cylindrical pin 8 via the collar 9.
  • a collar 13 is provided in the inner wall of the hollow cylindrical pin 8 by a jump in diameter. The function of the air outflow channels 12 and of the collar 13 will be explained in more detail below.
  • the middle part 6 is connected to the front part 5 via an annular predetermined breaking point 14. It is cylindrical and designed as a hollow body.
  • the predetermined breaking point 14 is relatively simple at this point in terms of injection molding and can be implemented with small tolerance fluctuations.
  • barb-shaped sections 15 are formed in the transition between the middle part 6 and the front part 5, which - as will be explained later - cooperate with the collar 13 of the front part 5.
  • the central part 6 merges relatively thick-walled into the rear part 7, as can be seen in particular from FIGS. 5 and 6, so that no breakage or deformation can occur at this transition point when the shot is developed.
  • the rear part 7 is as after Hollow cylinder open at the rear is seen from a central injection pin 16.
  • the rear part 7 has approximately the diameter of the collar 9 of the front part 5 and closes at the rear end with a circumferential sealing lip 17 which serves to seal the gas pressure when the shot develops.
  • reinforcing ribs 18 distributed over its circumference.
  • Fig. 1 shows the state of charge of the shotgun barrel.
  • a gas pressure builds up, which acts on the cross-sectional area of the rear part 7. Due to this pressure build-up, the predetermined breaking point 14 tears and the middle part 6 is pushed into the interior of the hollow cylindrical pin 8 of the front part 5 due to the persistence of the heavy lead head 1. This happens suddenly.
  • the air displaced from the interior of the hollow cylindrical pin 8 can flow away via the air outflow channels 12 without any problems, so that there is no resistance to the penetration of the central part 6 into the front part 5 due to pressure build-up.
  • the upper side 19 of the rear part 7 strikes against the lower side 20 of the front part 5.
  • the shotgun barrel then took the form shown in FIG. 2, with which it leaves the barrel of the weapon. This shape is maintained until the end, since the middle part 6 and the rear part 7 are captively connected to the front part 5. This connection is achieved through the interaction of the barb-shaped sections 15 of the middle part 6 and the collar 13 in the inner wall of the hollow cylindrical real pin 8 realized. After the middle part 6 has been pushed deep into the front part 5, the barb-shaped sections 15 lock behind the collar 13, so that the middle part 6 and rear part 7 cannot, at least not by the forces acting on the rear part 2 during the flight of the shotgun barrel. The latching between the front part 5 and the middle part 6 and the rear part 7 can be seen in FIG. 6.

Abstract

A shotgun or smooth bore projectile has hollow front section (5). It is connected by a location of intentional breakage (14) to the central section (6). During firing, the central section slides into the cavity of the front section, until the top (19) of the rear section (7) strikes the underside (20) of the front section.

Description

Flintenlaufgeschoss Slug
Die vorliegende Erfindung betrifft ein Flintenlaufgeschoss mit den Merkmalen des Oberbegriffs des Anspruchs 1.The present invention relates to a shotgun barrel with the features of the preamble of claim 1.
Ein derartiges Flintenlaufgeschoss ist in EP 0 341 543 Bl beschrieben. Das Oberteil des Heckteils dieses Geschosses ist als Nollkorper ausgeführt. Es besitzt gegenüber dem Sackloch im Bleikopf ein leichtes radiales Übermass, so dass es unter Zwängung in dieses eingeführt werden muß. Anschliessend wird an mehreren Stellen des Umfangs des Bleikopfs, vorzugsweise an drei gleichmässig auf den Umfang verteilten Stellen des Bleikopfes punktartig Blei radial nach innen getrieben, wo die verdrängte Bleimenge in eine umfängliche ut des Oberteils des Heckteils einfliesst. Diese Bleiverdrängung nach innen erfolgt mit stift- förmigen Stahlstiften nach Art eines Körnerschlages, Durch die Presspassung des Oberteils des Heckteils im Bleikopf und die punktförmige Bleieinbringung in das Oberteil des Heckteils ist letzteres unverlierbar mit dem Bleikopf verbunden.Such a shotgun barrel is described in EP 0 341 543 B1. The upper part of the rear part of this floor is designed as a Nollkorper. It has a slight radial oversize compared to the blind hole in the lead head, so that it has to be inserted into it under constraint. Subsequently, at several points on the circumference of the lead head, preferably at three points of the lead head which are evenly distributed over the circumference, lead is driven radially inwards at points where the displaced amount of lead flows into a circumferential ut of the upper part of the rear part. This inward lead displacement takes place with pin-shaped steel pins in the manner of a punch, through the press fit of the upper part of the rear part in the lead head and the punctiform introduction of lead into the upper part of the rear part, the latter being captively connected to the lead head.
Bei diesem bekannten Flintehlaufgeschoss befindet sich zwischen dem stangenförmigen Mittelteil und dem kolbenartigen Unterteil des Heckteils eine Sollbruchstelle, die bei der Herstellung im Spritzgussverfahren durch Einschieben einer Metallhülse in die Form erzielt wird. Diese Herstellung ist relativ aufwendig und verlängert zudem die Taktzeit bei der Herstellung. Ein weiterer Nachteil ist darin zu sehen, dass die Sollbruchstelle nicht sehr gleichmässig gestaltet werden kann. Dies hat nachteilige Auswirkungen auf die Innen- und Aussenballistik des Geschosses.In this known shotgun slab there is a predetermined breaking point between the rod-shaped middle part and the piston-like lower part of the rear part, which is achieved in the injection molding process by inserting a metal sleeve into the mold. This production is relatively complex and also extends the cycle time during production. On Another disadvantage is that the predetermined breaking point cannot be designed very evenly. This has an adverse effect on the inside and outside ballistics of the projectile.
Bei der Schussentwicklung verschiebt sich das kolbenartige Unterteil nach dem Reissen der Sollbruchstelle auf dem stangen- förmigen Mittelteil nach oben, bis seine Oberseite an die Unterseite des Oberteils anschlägt. Ein widerhakenförmiger auf dem stangenförmigen Mittelteil umlaufender Vorsprung hält das Unterteil auf dem Mittelteil, verhindert also, dass sich das Mittelteil während der Flugphase des Geschosses nach hinten vom stangenförmigen Mittelteil löst. Während der Flugphase ragt das hintere Ende des stangenförmigen Mittelteils hinten aus dem kolbenartigen Unterteil heraus. Dies ist aufgrund der daraus resultierenden Strömungsverhältnisse im hinteren Bereich des Heckteils für die Aussenballistik des Geschosses ungünstig. Als nachteilig wirkt sich diesbezüglich auch die Tatsache aus, dass das nach hinten überragende Ende des stangenförmigen Mittelteils aufgrund des geschilderten Herstellungsprozesses in seiner äusseren Form ungleichmässig ist.During the weft development, the piston-like lower part moves upwards on the rod-shaped central part after the predetermined breaking point has torn, until its upper side strikes the underside of the upper part. A barb-shaped projection running around the rod-shaped central part holds the lower part on the central part, thus preventing the central part from detaching from the rod-shaped central part to the rear during the flight phase of the projectile. During the flight phase, the rear end of the rod-shaped central part protrudes from the rear of the piston-like lower part. This is unfavorable for the outer ballistics of the projectile due to the resulting flow conditions in the rear area of the rear part. The fact that the rearward projecting end of the rod-shaped middle part is uneven in its outer shape due to the described manufacturing process also has a disadvantage in this regard.
Bei dem oben beschriebenen Flintenlaufgeschoss ist eine sehr gute Dämpfung des Gasdruckanstiegs im Lauf zu verzeichnen. Jedoch reisst die Sollbruchstelle nach Schussentwicklung aufgrund der herstellungsbedingten relativ grossen Toleranzen von Patrone zu Patrone bei relativ weit auseinanderliegenden Gasdrücken. Das hat Einflüsse auf die weitere Druckentwicklung im Lauf und damit auf die Austrittsgeschwindigkeit des Geschosses. Dieses tritt also von Schuss zu Schuss mit relativ stark schwankenden Ge- schwindigkeiten aus dem Lauf, worunter die Präzision im Ziel leidet .With the shotgun barrel described above, there is very good damping of the gas pressure rise in the barrel. However, the predetermined breaking point tears after the development of the shot due to the production-related, relatively large tolerances from cartridge to cartridge at gas pressures which are relatively far apart. This has an impact on the further pressure development in the barrel and thus on the bullet's exit velocity. So this occurs from shot to shot with relatively strongly fluctuating Speed from the run, which affects the precision in the finish.
Aufgabe der vorliegenden Erfindung ist es, ein gattungsge- mässes Flintenlaufgeschoss dahingehend zu verbessern, dass die Präzision erhöht, d.h., die Streuung im Ziel verringert wird.The object of the present invention is to improve a generic shotgun barrel in such a way that the precision increases, i.e. the scatter in the target is reduced.
Diese Aufgabe wird erfindungsgemäss durch ein Flintenlaufgeschoss gelöst, das die Merkmale des Anspruchs 1 aufweist.According to the invention, this object is achieved by a shotgun barrel having the features of claim 1.
Bei dem Heckteil des erfindungsgemässen Flintenlaufgeschos- ses befindet sich also die Sollbruchstelle zwischen dem hohlen Oberteil und dem stangenförmigen Mittelteil. Sie ist an dieser Stelle wesentlich präziser und auch kostengünstiger herzustellen, als an der nach dem Stand der Technik bekannten, oben diskutierten Stelle. Aus den geringeren Toleranzen der Sollbruchstelle resultiert ein Reissen bei geringeren Gasdruckschwankungen, d.h., der Gasdruckbereich, in dem die Sollbruchstelle reisst, ist kleiner als bei dem bekannten Flintenlaufgeschoss. Das hat unmittelbar positive Auswirkungen auf die Zielgenauigkeit .In the rear part of the shotgun barrel according to the invention, the predetermined breaking point is therefore between the hollow upper part and the rod-shaped central part. At this point it can be produced much more precisely and also more cost-effectively than at the point known from the prior art and discussed above. The lower tolerances of the predetermined breaking point result in tearing with smaller gas pressure fluctuations, i.e. the gas pressure range in which the predetermined breaking point tears is smaller than in the known shotgun barrel. This has an immediate positive impact on the target accuracy.
Ein weiterer Vorteil des erfindungsgemässen Flintenlaufge- schosses ist darin zu sehen, dass das hintere Ende des Heckteils in der Flugphase durch das in der Form genau definierten kolbenartige Hinterteil gebildet ist. Daraus ergeben sich definierte Strδmungsverhältnisse, die die Aussenballistik des Geschosses positiv beeinflussen.Another advantage of the shotgun barrel projectile according to the invention can be seen in the fact that the rear end of the rear part in the flight phase is formed by the piston-like rear part which is precisely defined in shape. This results in defined flow conditions which have a positive influence on the outer ballistics of the projectile.
Weitere vorteilhafte Ausgestaltungen des Flintenlaufgeschos- ses ergeben sich aus den Unteransprüchen. Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels näher erläutert. In der dazugehörigen Zeichnung zeigt :Further advantageous refinements of the shotgun barrel result from the subclaims. The invention will explained in more detail below using an exemplary embodiment. In the accompanying drawing:
Fig. 1 eine Seitenansicht eines Flintenlaufge- schosses vor Schussentwicklung,1 is a side view of a shotgun bullet before firing,
Fig. 2 eine Darstellung des Flintenlaufgeschosses gemäss Fig. 1 nach Schussentwicklung,2 shows the shotgun barrel according to FIG. 1 after the shot has been developed,
Fig. 3 eine perspektivische Darstellung des Heckteils des Flintenlaufgeschosses vor Schussentwicklung,3 is a perspective view of the rear part of the shotgun barrel before the shot is developed,
Fig. 4 eine Fig. 3 entsprechende Seitenansicht des Heckteils,4 shows a side view of the rear part corresponding to FIG. 3,
Fig. 5 einen Schnitt A-A gemäss Fig. 4, und5 shows a section A-A according to FIG. 4, and
Fig. 6 eine Darstellung gemäss Fig. 5 nach Schuss- entwicklung.FIG. 6 shows an illustration according to FIG. 5 after shot development.
Fig. 1 zeigt ein Flintenlaufgeschoss, welches in dieser Form bzw. in diesem Zustand von den Herstellern geladen wird. Es besteht aus einem schweren Bleikopf 1 und einem leichteren, aus Kunststoff bestehenden Heckteil 2. Aufgrund dieser Masseverteilung wird das Flintenlaufgeschoss nach Verlassen des Laufes einer Flinte auf dem Flug nach dem Pfeilprinzip stabilisiert, da der Masseschwerpunkt vor dem Luftangriffspunkt liegt.Fig. 1 shows a shotgun barrel, which is loaded in this form or in this state by the manufacturers. It consists of a heavy lead head 1 and a lighter rear part 2 made of plastic. Due to this mass distribution, the shotgun barrel is stabilized after leaving the barrel of a shotgun on the flight according to the arrow principle, since the center of gravity lies in front of the air attack point.
Der Bleikopf 1 hat im wesentlichen eine zylindrische Form und auf seiner vorderen Stirnfläche eine Spitze 3, die der Ver- besserung des Luftwiderstandes dienen soll . Auf den Umf ng verteilt sind schräggestellte Führungsrippen 4 angeordnet. Diese Führungsrippen 4 ermöglichen einen Durchgang durch den Choke einer Waffe, da sie beim Passieren des Chokes aufgrund der Duk- tilität des legierten Bleies weggedrückt werden. Die Belastung des Chokes ist daher beim Verschiesses von Flintenlaufgeschossen nicht grösser als bei Bleischrot.The lead head 1 has a substantially cylindrical shape and a tip 3 on its front end face, which the to improve air resistance. Distributed on the circumference are inclined guide ribs 4. These guide ribs 4 allow passage through the choke of a weapon, since they are pushed away when passing through the choke due to the ductility of the alloyed lead. The load on the choke when firing with shotgun bullets is therefore not greater than with lead shot.
Das Heckteil 2, dessen Ausbildung am besten aus den Fig. 3 - 5 hervorgeht, ist einstückig aus Kunststoff in Spritzgusstechnik gefertigt. Es besteht aus einem Vorderteil 5, einem Mittelteil 6 und einem Hinterteil 7. Das Vorderteil 5 weist einen hohlzylind- rischen Zapfen 8 auf, der zum Mittelteil 6 hin in einem Bund 9 grδsseren Durchmessers übergeht. Bei zusammengesetztem Flintenlaufgeschoss (Fig. 1) sitzt der hohlzylindrisehe Zapfen 8 mit leichtem Übermass in einer entsprechenden zylindrischen Kammer im Bleikopf 1, die aus der zeichnerischen Darstellung nicht hervorgeht. Neben der Presspassung zwischen dieser Kammer im Bleikopf 1 und dem hohlzylindrischen Zapfen 8 erfolgt die unverlierbare Verbindung von Bleikopf 1 und Heckteil 2 dadurch, dass Blei durch nadelartige Stempel nach Art eines Körnerschlages in eine Umfangsnut 10 des hohlzylindrischen Zapfens 8 gedrückt wird. Aus den Darstellungen gemäss den Fig: 1 und 2 ist ein derartiger Körnerschlag 11 ersichtlich. Insgesamt erfolgt die Verbindung durch zwei oder drei gleichmässig auf den Umfang verteilte Körnerschläge 11.The rear part 2, the design of which can best be seen in FIGS. 3-5, is made in one piece from plastic using injection molding technology. It consists of a front part 5, a middle part 6 and a rear part 7. The front part 5 has a hollow cylindrical pin 8 which merges with the middle part 6 in a collar 9 of larger diameter. When the shotgun barrel is assembled (FIG. 1), the hollow-cylindrical pin 8 is seated with a slight excess in a corresponding cylindrical chamber in the lead head 1, which does not appear from the drawing. In addition to the press fit between this chamber in the lead head 1 and the hollow cylindrical pin 8, the captive connection of the lead head 1 and the rear part 2 takes place in that lead is pressed into a circumferential groove 10 of the hollow cylindrical pin 8 in the manner of a punch in the manner of a punch. Such a punch 11 can be seen from the representations according to FIGS. 1 and 2. Overall, the connection takes place by means of two or three blows 11 distributed evenly over the circumference.
Der Bund 9 des Vorderteils 5 dient der Auflage der hinteren Stirnseite des Bleikopfes 1. Dadurch wird bei Schussentwicklung im Zusammenwirken mit dem hohlzylindrischen Zapfen 8 eine gleichmässige Verteilung des Gasdruckes auf den Bleikopf 1 erreicht.The collar 9 of the front part 5 serves to support the rear end face of the lead head 1. As a result, when the shot develops in cooperation with the hollow cylindrical pin 8, a uniform distribution of the gas pressure on the lead head 1 reached.
Das Vorderteil 5 ist mit vier Luftabströmkanälen 12 ausgestattet, die gleichmässig auf dem Umfang verteilt angeordnet sind. Diese Luftabströmkanäle 12 schaffen bei aufgesetztem Bleikopf 1 eine Verbindung zwischen dem Innenraum des hohlzylindrischen Zapfens 8 und der Atmosphäre. Sie erstrecken sich durch die vordere Stirnwand des hohlzylindrischen Zapfens 8, die im zusammengebauten Zustand am Boden der Kammer im Bleikopf 1 anliegt, und verlaufen dann auf der Aussenseite des hohlzylindrischen Zapfens 8 über den Bund 9 nach aussen. Des weiteren ist in der Innenwandung des hohlzylindrischen Zapfens 8 durch einen Durchmessersprung ein Bund 13 vorgesehen. Die Funktion der Luftabströmkanäle 12 sowie des Bundes 13 wird weiter unten noch näher erläutert .The front part 5 is equipped with four air outflow channels 12, which are evenly distributed over the circumference. When the lead head 1 is attached, these air outflow channels 12 create a connection between the interior of the hollow cylindrical pin 8 and the atmosphere. They extend through the front end wall of the hollow cylindrical pin 8, which in the assembled state rests against the bottom of the chamber in the lead head 1, and then run outwards on the outside of the hollow cylindrical pin 8 via the collar 9. Furthermore, a collar 13 is provided in the inner wall of the hollow cylindrical pin 8 by a jump in diameter. The function of the air outflow channels 12 and of the collar 13 will be explained in more detail below.
An das Vorderteil 5 schliesst sich über eine ringförmige Sollbruchstelle 14 das Mittelteil 6 an. Es ist zylindrisch und als Hohlkörper ausgeführt. Die Sollbruchstelle 14 ist spritzgusstechnisch an dieser Stelle relativ einfach und mit geringen Toleranzschwankungen realisierbar. Auf der Aussenflache sind im Übergang zwischen Mittelteil 6 und Vorderteil 5 auf dem Umfang verteilt widerhakenförmige Abschnitte 15 ausgebildet, die - wie später noch erläutert wird - mit dem Bund 13 des Vorderteils 5 zusammenwirken.The middle part 6 is connected to the front part 5 via an annular predetermined breaking point 14. It is cylindrical and designed as a hollow body. The predetermined breaking point 14 is relatively simple at this point in terms of injection molding and can be implemented with small tolerance fluctuations. On the outer surface barb-shaped sections 15 are formed in the transition between the middle part 6 and the front part 5, which - as will be explained later - cooperate with the collar 13 of the front part 5.
Das Mittelteil 6 geht, wie insbesondere aus den Fig. 5 und 6 hervorgeht, relativ dickwandig in das Hinterteil 7 über, so dass an dieser Übergangsstelle bei Schussentwicklung kein Bruch oder keine Verformung erfolgen kann. Das Hinterteil 7 ist als nach hinten offener Hohlzylinder ausgeführt, sieht man von einem zentralen Anspritzzapfen 16 ab. Das Hinterteil 7 hat etwa den Durchmesser des Bundes 9 des Vorderteils 5 und schliesst am hinteren Ende mit einer umlaufenden Dichtlippe 17 ab, die bei Schussentwicklung der Abdichtung des Gasdrucks zum Lauf dient. Zur Stabilisierung der Wandung des Hinterteils 7 ist dieses mit auf seinem Umfang verteilten Verstärkungsrippen 18 versehen.. The central part 6 merges relatively thick-walled into the rear part 7, as can be seen in particular from FIGS. 5 and 6, so that no breakage or deformation can occur at this transition point when the shot is developed. The rear part 7 is as after Hollow cylinder open at the rear is seen from a central injection pin 16. The rear part 7 has approximately the diameter of the collar 9 of the front part 5 and closes at the rear end with a circumferential sealing lip 17 which serves to seal the gas pressure when the shot develops. To stabilize the wall of the rear part 7, this is provided with reinforcing ribs 18 distributed over its circumference. ,
Nachstehend wird das Zusammenwirken von Bleikopf 1 und Heckteil 2 bei Schussentwicklung beschrieben.The interaction between the lead head 1 and the rear part 2 when the shot is developed is described below.
Wie oben schon erwähnt, zeigt Fig. 1 den Ladezustand des Flintenlaufgeschosses. Nach dem Zünden der Treibladung baut sich ein Gasdruck auf, der auf die Querschnittsfläche des Hinterteils 7 wirkt. Aufgrund dieses Druckaufbaus reisst die Sollbruchstelle 14 und das Mittelteil 6 schiebt sich aufgrund des Beharrungsvermögens des schweren Bleikopfes 1 in den Innenraum des hohlzylindrischen Zapfens 8 des Vorderteils 5 ein. Das geschieht schlagartig. Die dabei -aus dem Innenraum des hohlzylindrischen Zapfens 8 verdrängte Luft kann über die Luftabströmkanäle 12 problemlos abfliessen, so dass dem Eindringen des Mittelteils 6 in das Vorderteil 5 kein Widerstand durch Druckaufbau entgegengesetzt wird. Am Ende dieser Bewegung des nun zweigeteilten Heckteils 2 schlägt die Oberseite 19 des Hinterteils 7 an die Unterseite 20 des Vorderteils 5 an. Das Flintenlaufgeschoss hat dann die aus Fig. 2 ersichtliche Form angenommen, mit der sie den Lauf der Waffe verlässt. Diese Form wird bis zum Ziel beibehalten, da das Mittelteil 6 und das Hinterteil 7 unverlierbar mit dem Vorderteil 5 verbunden sind. Diese Verbindung wird durch das Zusammenwirken der widerhakenförmigen Abschnitte 15 des Mittelteils 6 und des Bundes 13 in der Innenwandung des hohlzylind- rischen Zapfens 8 realisiert. Nach maximal tiefem Einschieben des Mittelteils 6 in das Vorderteil 5 verrasten die widerhakenförmigen Abschnitte 15 hinter dem Bund 13, so dass Mittelteil 6 und- Hinterteil 7 nicht, jedenfalls nicht durch die auf das Heckteil 2 während des Fluges des Flintenlaufgeschosses wirkenden Kräfte getrennt werden können. Die Verrastung zwischen Vorderteil.5 und Mittelteil 6 und Hinterteil 7 geht aus Fig. 6 hervor. As already mentioned above, Fig. 1 shows the state of charge of the shotgun barrel. After the propellant charge is ignited, a gas pressure builds up, which acts on the cross-sectional area of the rear part 7. Due to this pressure build-up, the predetermined breaking point 14 tears and the middle part 6 is pushed into the interior of the hollow cylindrical pin 8 of the front part 5 due to the persistence of the heavy lead head 1. This happens suddenly. The air displaced from the interior of the hollow cylindrical pin 8 can flow away via the air outflow channels 12 without any problems, so that there is no resistance to the penetration of the central part 6 into the front part 5 due to pressure build-up. At the end of this movement of the rear part 2, which is now divided into two, the upper side 19 of the rear part 7 strikes against the lower side 20 of the front part 5. The shotgun barrel then took the form shown in FIG. 2, with which it leaves the barrel of the weapon. This shape is maintained until the end, since the middle part 6 and the rear part 7 are captively connected to the front part 5. This connection is achieved through the interaction of the barb-shaped sections 15 of the middle part 6 and the collar 13 in the inner wall of the hollow cylindrical real pin 8 realized. After the middle part 6 has been pushed deep into the front part 5, the barb-shaped sections 15 lock behind the collar 13, so that the middle part 6 and rear part 7 cannot, at least not by the forces acting on the rear part 2 during the flight of the shotgun barrel. The latching between the front part 5 and the middle part 6 and the rear part 7 can be seen in FIG. 6.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Flintenlaufgeschoss mit einem Metallkopf und einem Heckteil aus Kunststoff, welches einstückig hergestellt aus einem zapfenförmigen Vorderteil, einem sich daran nach hinten an- schliessenden stangenförmigen Mittelteil und einem kolbenartigen Hinterteil besteht, wobei das Vorderteil von hinten in ein Sackloch des Metallkopfes eingesteckt und mit diesem unverlierbar verbunden ist, dadurch gekennzeichnet, dass das Vorderteil (5) als Hohlkörper ausgeführt und mit dem Mittelteil (6) über eine Sollbruchstelle (14) verbunden ist, wobei sich bei der Schussentwicklung das Mittelteil (6) in den Hohlraum des Vorderteils (5) soweit einschiebt, bis die Oberseite (19) des Hinterteils (7) an die Unterseite (20) des Vorderteils (5) anschlägt.1.Gun barrel with a metal head and a rear part made of plastic, which is made in one piece from a peg-shaped front part, a rod-shaped middle part adjoining it to the rear and a piston-like rear part, the front part being inserted from behind into a blind hole in the metal head and with it is captively connected, characterized in that the front part (5) is designed as a hollow body and is connected to the middle part (6) via a predetermined breaking point (14), with the middle part (6) extending into the cavity of the front part (5) during the weft development. Pushes in until the top (19) of the rear part (7) strikes the underside (20) of the front part (5).
2. Flintenlaufgeschoss nach Anspruch 1, dadurch gekennzeichnet, dass das Vorderteil (5) mit Luftabströmkanälen (12) versehen ist, die ein Abströmen der beim Eindringen des Mittelteils (6) in den Hohlraum des Vorderteils (5) verdrängten Luft ermöglichen.2. Shotgun barrel according to claim 1, characterized in that the front part (5) is provided with air outflow channels (12) which allow the outflow of the air displaced when the middle part (6) penetrates into the cavity of the front part (5).
3. Flintenlaufgeschoss nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass auf dem Mittelteil (6) widerhakenförmige Abschnitte (15) "vorgesehen sind, die sich beim Eindringen des Mittelteils (6) in den Hohlraum des Vorderteils (5) hinter einem Bund (13) in der Wandung des Hohlraums des Vorderteils (5) verhaken. 3. shotgun barrel according to claim 1 or claim 2, characterized in that on the central part (6) barb-shaped sections (15) "are provided, which when the central part (6) penetrates into the cavity of the front part (5) behind a collar ( 13) in the wall of the cavity of the front part (5).
EP03798063A 2002-09-25 2003-09-04 Rifled slug Expired - Lifetime EP1543288B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10244571A DE10244571C1 (en) 2002-09-25 2002-09-25 Shotgun or smooth bore projectile, has hollow front section connected by location of intentional breakage to rear section which slides into it during firing
DE10244571 2002-09-25
PCT/DE2003/002934 WO2004029539A1 (en) 2002-09-25 2003-09-04 Rifled slug

Publications (2)

Publication Number Publication Date
EP1543288A1 true EP1543288A1 (en) 2005-06-22
EP1543288B1 EP1543288B1 (en) 2006-05-17

Family

ID=29414335

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Application Number Title Priority Date Filing Date
EP03798063A Expired - Lifetime EP1543288B1 (en) 2002-09-25 2003-09-04 Rifled slug

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US (1) US7331294B2 (en)
EP (1) EP1543288B1 (en)
AT (1) ATE326680T1 (en)
AU (1) AU2003266195A1 (en)
DE (2) DE10244571C1 (en)
ES (1) ES2264033T3 (en)
WO (1) WO2004029539A1 (en)

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BRPI0500226B1 (en) * 2005-01-26 2017-09-12 Condor S/A Indústria Química PROJECTILE FOR NON-LETHAL AMMUNITION
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USD853519S1 (en) 2017-09-14 2019-07-09 F. Richard Langner Piston for driving water out a disrupter
USD852922S1 (en) 2017-09-14 2019-07-02 F. Richard Langner Slug for launching from a disruptor
USD866701S1 (en) 2018-01-18 2019-11-12 Brenneke Ammunition GmbH Bullet

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Also Published As

Publication number Publication date
DE10244571C1 (en) 2003-12-04
ES2264033T3 (en) 2006-12-16
US7331294B2 (en) 2008-02-19
DE50303386D1 (en) 2006-06-22
WO2004029539A1 (en) 2004-04-08
EP1543288B1 (en) 2006-05-17
US20060005730A1 (en) 2006-01-12
ATE326680T1 (en) 2006-06-15
AU2003266195A1 (en) 2004-04-19

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