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EP0233347B1 - Apparatus for feeding cartridges to a firearm from a drum magazine - Google Patents

Apparatus for feeding cartridges to a firearm from a drum magazine Download PDF

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Publication number
EP0233347B1
EP0233347B1 EP86117378A EP86117378A EP0233347B1 EP 0233347 B1 EP0233347 B1 EP 0233347B1 EP 86117378 A EP86117378 A EP 86117378A EP 86117378 A EP86117378 A EP 86117378A EP 0233347 B1 EP0233347 B1 EP 0233347B1
Authority
EP
European Patent Office
Prior art keywords
cartridges
conveyor device
flaps
drum magazine
cartridge
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
Application number
EP86117378A
Other languages
German (de)
French (fr)
Other versions
EP0233347A1 (en
Inventor
Peter Mannhart
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle 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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0233347A1 publication Critical patent/EP0233347A1/en
Application granted granted Critical
Publication of EP0233347B1 publication Critical patent/EP0233347B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/61—Magazines
    • F41A9/64—Magazines for unbelted ammunition
    • F41A9/73—Drum magazines
    • F41A9/74—Drum magazines with radially disposed cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/54—Cartridge guides, stops or positioners, e.g. for cartridge extraction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/61—Magazines
    • F41A9/64—Magazines for unbelted ammunition
    • F41A9/76—Magazines having an endless-chain conveyor

Definitions

  • the invention relates to a conveyor device for feeding cartridges to a firearm, from a drum magazine, which is divided into a number of sectors, in each of which there is a row of cartridges, with a first conveyor device, which pushes the rows of cartridges out of the sectors of the drum magazine a second conveyor, for transporting the cartridges pushed out of the sectors to the firearm, with means for expanding the drum magazine in a certain direction, each sector of the drum magazine reaching a removal position, while the drum magazine rotates in said direction, each cartridge row pushed out in a first given direction from the sector in the removal position, the first conveyor is arranged obliquely, this inclined position results as a result of the given direction of rotation of the drum magazine and the given direction in which the cartridges from the sector s are pushed out with a backstop - which has at least one pivotable flap - between the two conveyors to prevent cartridges from falling into the already empty sectors.
  • the backstop is formed by a slide which has a passage opening for the cartridges ejected from the sectors of the drum magazine and a deflection nose through which the cartridges into individual receptacles of a conveyor chain of the second conveyor device
  • EP-A 0 111 780 shows a further exemplary embodiment according to the preamble of claim 1, in which the backstop is formed by pivotable flaps which are articulated at the ejection end of the guide rails of the drum magazine and which open when the cartridges are ejected, however, prevent the cartridges from falling back into the sectors of the drum magazine.
  • This known device both the first and the second exemplary embodiment, has the disadvantage that it does not work sufficiently reliably with a high cadence of the firearm, which leads to malfunctions of all kinds.
  • the object which is to be achieved with the present invention consists in creating a device with which the cartridges are reliably transferred from the first conveying device to the second conveying device, in particular during the transition from one sector to the next sector no disturbances may occur, that is, as soon as the last cartridge of one sector has been transferred to the second conveyor, the first cartridge of the next sector should be fed to the second conveyor without interruption.
  • this charge is achieved in that the backstop has at least one additional, also pivotable flap, which are connected to one another and which together form a funnel-shaped, pivotable channel through which the cartridges are pushed through the first conveying device to the second conveying device.
  • the drum magazine 10 consists of an inner container 11 and an outer container 12.
  • first type of ammunition 13 In the inner container 11 there is a first type of ammunition 13 and in the outer container 12 there is a second type of ammunition 14. Both containers 11 and 12 are divided into a number of sectors and, according to FIG. 2, five cartridges are contained in each sector.
  • first conveying device 15 In the inner container 11 there is a first conveying device 15, and in the outer container 12 there is another first conveying device 16.
  • These two first conveying devices which are also referred to as removal devices 15, 16 or as skewed skew, look the same. The expression “skewed skew" can be understood from FIG. 2 and the following description. Only one of the first two conveying devices is explained below.
  • the first conveyor 16 has two rollers 17 and 18, over which an endless belt 19 is guided.
  • two rollers 17, 17a and 18, 18a can be provided instead of a single roller 17 and 18, and two narrow conveyor belts 19 and 19a can be provided instead of a single wide conveyor belt 19.
  • Two carriers 20 and 21 are fastened to these belts 19 and 19a.
  • the endless belt 19 with the two drivers 20 and 21 moves in the direction of arrow A, the upper driver 21 pushing a cartridge 22 of one sector out of the drum magazine 10.
  • the other driver 20 will then bump against the bottom cartridge 23 of the next sector and thereby push the top cartridge 24 of the next sector out of the drum magazine. 1, the entire drum magazine 10 rotates in a clockwise direction, ie in the direction of the arrow B in FIGS.
  • the endless conveyor belt 25a moves from roll 26 to roll 27 between the two rolls 26 and 27. It therefore does not matter in the known device that, as mentioned, the cartridge 22 plays out at a different location the container 12 of the conveyor 25 is transferred as the cartridge 24, which is transferred to the conveyor belt 25a further to the right in FIG. 2.
  • the cartridges from the inner container 11 are transferred to a second conveyor belt 28 of the second conveyor device 25, which moves in the direction of the arrows D, the other first conveyor device 15 pushing the cartridges out of the inner container 11.
  • the second conveyor belt 28 is also guided over rollers, not shown, which are arranged essentially coaxially with the rollers 26 and 27, but rotate in the opposite direction.
  • a motor 37 drives a shaft 39 via three gear wheels 38.
  • the rollers 31, 31 a which are shown here as sprockets, are fastened and, on the other hand, a gear 40, which drives the first conveyor device 15 or 16 via gear wheels 41.
  • the gear wheels 41 drive a shaft 42 which the rollers 18 and 18a are attached.
  • a worm 43 is also fastened, which drive the inner container 11 or the outer container 12 via a gear 44, of which only an inner ring gear 45 is indicated in FIG. 3. It can be seen from the arrows B that the two containers 11 and 12 rotate in the opposite direction.
  • a cam disk 36 is used to pivot the two flaps 32 and 33, which pivots the flap 33 from the first into the second position, shown with dashed lines.
  • the other flap 32 is also pivoted via a rod 46.
  • the opening 29 is stationary.
  • the cam disk 36 is also indicated in FIG. 3 and is located there on shaft 39, while in the simplified schematic illustration according to FIG. 4 it is located further down on the right.
  • each individual flap 32 and 33 can be driven by a separate cam plate 36.
  • one flap 33 can be replaced by two flaps 33 and 33a arranged one behind the other, which are mounted on a common axis 34, one flap 33 supporting the rear end of a cartridge 22, 24 and the other flap 33a supports the front end of the same cartridge 22, 24.
  • the opposite flap 32 supports the central part of the cartridge 22, 24. Since the cartridges 22, 24 located in the drum magazine 10 move in a circle (see FIG.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Conveyance Elements (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Description

Die Erfindung betrifft eine Fördervorrichtung zum Zuführen von Patronen zu einer Feuerwaffe, aus einem Trommelmagazin, das in eine Anzahl Sektoren unterteilt ist, in denen sich je eine Patronenreihe befindet, mit einer ersten Fördervorrichtung, welche die Patronenreihen nacheinander aus den Sektoren des Trommelmagazins herausschiebt, mit einer zweiten Fördervorrichtung, zum Transport der aus den Sektoren herausgeschobenen Patronen zur Feuerwaffe, mit Mitteln, um das Trommelmagazin in einer bestimmten Richtung zu dehen, wobei jeder Sektor des Trommelmagazins eine Entnahmestellung erreicht, während sich das Trommelmagazin in der genannten Richtung dreht, jede Patronenreihe wird in einer ersten gegebenen Richtung aus dem in Entnahmestellung befindlichen Sektor herausgeschoben, die erste Fördervorrichtung ist schräg angeordnet, diese Schräglage ergibt sich als Resultierende aus der gegebenen Drehrichtung des Trommelmagazins und der gegebenen Richtung, in welcher die Patronen aus den Sektoren herausgeschoben werden, mit einer Rücklaufsperre - die mindestens eine schwenkbare Klappe aufweist - zwischen den beiden Fördervorrichtungen, um zu verhindern, dass Patronen in die bereits entleerten Sektoren hineinfallen.The invention relates to a conveyor device for feeding cartridges to a firearm, from a drum magazine, which is divided into a number of sectors, in each of which there is a row of cartridges, with a first conveyor device, which pushes the rows of cartridges out of the sectors of the drum magazine a second conveyor, for transporting the cartridges pushed out of the sectors to the firearm, with means for expanding the drum magazine in a certain direction, each sector of the drum magazine reaching a removal position, while the drum magazine rotates in said direction, each cartridge row pushed out in a first given direction from the sector in the removal position, the first conveyor is arranged obliquely, this inclined position results as a result of the given direction of rotation of the drum magazine and the given direction in which the cartridges from the sector s are pushed out with a backstop - which has at least one pivotable flap - between the two conveyors to prevent cartridges from falling into the already empty sectors.

Bei einer bekannten Vorrichtung dieser Art (siehe EP-Patentanmeldung 0111 780 wird die Rücklaufsperre durch einen Schieber gebildet, der eine Durchtrittsöffnung für die aus den Sektoren des Trommelmagazins ausgestossenen Patronen und eine Umlenknase aufweist, durch welche die Patronen in einzelne Aufnahmebecher einer Förderkette der zweiten Fördervorrichtung gelenkt werden. Der EP-A 0 111 780 ist ein weiteres Ausführungsbeispiel gemäss Oberbegriff des Anspruches 1 zu entnehmen, bei diesem wird die Rücklaufsperre durch schwenkbare Klappen gebildet, welche am Ausstossende der Führungsschienen des Trommelmagazins angelenkt sind und die sich beim Ausstossen der Patronen öffnen, jedoch ein Zurückfallen der Patronen in die Sektoren des Trommelmagazins verhindern.In a known device of this type (see EP patent application 0111 780), the backstop is formed by a slide which has a passage opening for the cartridges ejected from the sectors of the drum magazine and a deflection nose through which the cartridges into individual receptacles of a conveyor chain of the second conveyor device EP-A 0 111 780 shows a further exemplary embodiment according to the preamble of claim 1, in which the backstop is formed by pivotable flaps which are articulated at the ejection end of the guide rails of the drum magazine and which open when the cartridges are ejected, however, prevent the cartridges from falling back into the sectors of the drum magazine.

Diese bekannte Vorrichtung, sowohl das erste als auch das zweite Ausführungsbeispiel, hat den Nachteil, dass sie bei hoher Kadenz der Feuerwaffe nicht genügend zuverlässig arbeitet, wodurch Störungen aller Art entstehen.This known device, both the first and the second exemplary embodiment, has the disadvantage that it does not work sufficiently reliably with a high cadence of the firearm, which leads to malfunctions of all kinds.

Die Aufgabe, welche mit der vorliegenden Erfindung gelöst werden soll, besteht in der Schaffung einer Vorrichtung, mit welcher die Patronen zuverlässig von der ersten Fördervorrichtung an die zweite Fördervorrichtung übergeben werden, wobei insbesondere beim Ubergang von einem Sektor zum nächsten Sektor keine Störungen auftreten dürfen, d.h., sobald die letzte Patrone des einen Sektors der zweiten Fördervorrichtung übergeben wurde, soll ohne Unterbruch die erste Patrone des nächsten Sektors der zweiten Fördervorrichtung zugeführt werden.The object which is to be achieved with the present invention consists in creating a device with which the cartridges are reliably transferred from the first conveying device to the second conveying device, in particular during the transition from one sector to the next sector no disturbances may occur, that is, as soon as the last cartridge of one sector has been transferred to the second conveyor, the first cartridge of the next sector should be fed to the second conveyor without interruption.

Diese Aufgage ist erfindungungsgemäss dadurch gelöst, dass die Rücklaufsperre mindestens eine zusätzliche, ebenfalls schwenkbare Klappe aufweist, die miteinander verbunden sind und die zusammen einen trichterförmigen, schwenkbaren Kanal bilden, durch den die Patronen durch die erste Fördervorrichtung zur zweiten Fördervorrichtung geschoben werden. Ein Ausführungsbeispiel der erfindungsgemässen Vorrichtung zur Übergabe von Patronen aus einem Trommelmagazin an eine endlose Förderkette ist im folgenden anhand der beigefügten Zeichnung ausführlich beschrieben.According to the invention, this charge is achieved in that the backstop has at least one additional, also pivotable flap, which are connected to one another and which together form a funnel-shaped, pivotable channel through which the cartridges are pushed through the first conveying device to the second conveying device. An embodiment of the device according to the invention for transferring cartridges from a drum magazine to an endless conveyor chain is described in detail below with reference to the accompanying drawing.

Es zeigt:

  • Fig. 1 eine Ansicht eines an sich bekannten Trommelmagazins von oben, mit zwei ersten Fördervorrichtungen teilweise im Schnitt;
  • Fig. 2 einen Schnitt nach Linie 11-11 in Fig. 1, mit einer der beiden ersten Fördervorrichtungen;
  • Fig. 3 eine perspektivische Darstellung der beiden ersten Fördervorrichtungen gemäss der vorliegenden Erfindung;
  • Fig. 4 eine schematische Darstellung einer ersten und einer zweiten Fördervorrichtung gemäss der vorliegenden Erfindung.
It shows:
  • Figure 1 is a view of a drum magazine known per se from above, with two first conveyors partially in section.
  • FIG. 2 shows a section along line 11-11 in FIG. 1, with one of the two first conveying devices;
  • 3 shows a perspective illustration of the two first conveying devices according to the present invention;
  • Fig. 4 is a schematic representation of a first and a second conveyor device according to the present invention.

Gemäss Fig. 1 und 2 besteht das Trommelmagazin 10 aus einem inneren Behälter 11 und einem äusseren Behälter 12. Im inneren Behälter 11 befindet sich eine erste Sorte Munition 13 und im äusseren Behälter 12 befindet sich eine zweite Sorte Munition 14. Beide Behälter 11 und 12 sind in eine Anzahl Sektoren unterteilt und in jedem Sektor sind gemäss Fig. 2 fünf Patronen enthalten. Im inneren Behälter 11 befindet sich eine erste Fördervorrichtung 15, und im äusseren Behälter 12 befindet sich eine weitere erste Fördervorrichtung 16. Diese beiden ersten Fördervorrichtungen, die auch als Entnahmevorrichtung 15, 16 oder als Schrägabschöpfung bezeichnet werden, sehen gleich aus. Aus Fig. 2 und der folgenden Beschreibung wird der Ausdruck "Schrägabschöpfung" verständlich. Im folgenden wird nur noch die eine der beiden ersten Fördervorrichtungen erläutert. Gemäss Fig. 2 und 3 weist die erste Fördervorrichtung 16 zwei Rollen 17 und 18 auf, über welche ein endloses Band 19 geführt ist. Statt einer einzigen Rolle 17 bzw. 18 können gemäss Fig. 3 zwei Rollen 17, 17a bzw. 18, 18a vorgesehen sein, und statt einem einzigen breiten Förderband 19 können zwei schmale Förderbänder 19 und 19a vorgesehen sein. An diesen Bändern 19 und 19a sind zwei Mitnehmer 20 und 21 befestigt. Das endlose Band 19 mit den beiden Mitnehmern 20 und 21 bewegt sich in Richtung des Pfeiles A, dabei schiebt der obere Mitnehmer 21 eine Patrone 22 eines Sektors aus dem Trommelmagazin 10 heraus. Anschliessend wird der andere Mitnehmer 20 gegen die unterste Patrone 23 des nächsten Sektors stossen und dabei die oberste Patrone 24 des nächsten Sektors aus dem Trommelmagazin herausschieben. Während der Entnahme der Patronen aus dem äusseren Behälter dreht sich gemäss Fig. 1 das ganze Trommelmagazin 10 im Uhrzeigersinne, d.h. in Richtung des Pfeiles B in Fig. 1-3. Diese Drehung der Trommel 10 beim Ausstossen der Patronen aus dem Magazin 10 bewirkt, dass die Patrone 23 (Fig. 2) sich beim Ausstossen durch die Fördervorrichtung 16 schräg nach oben bewegt und an die Stelle gelangt, an der sich in Fig. 2 die Patrone 22 befinder. Die Patrone 22 des einen Sektors und die Patrone 24 des nächsten Sektors werden somit nicht an derselben Stelle einer zweiten, endlosen Fördervorrichtung 25 übergeben. Diese zweite, endlose Fördervorrichtung 25 fördert die Patrone in Richtung des Pfeiles D und bringt die Patronen zu einer nicht dargestellten Feuerwaffe. Das Förderband 25a der zweiten Fördervorrichtung 25 wird gemäss Fig. 2 über zwei Rollen 26 und 27 geführt, und gemäss Fig. 3 und 4 wird das Förderband 30 der zweiten Fördervorrichtung über eine einzige Rolle 31 geführt.1 and 2, the drum magazine 10 consists of an inner container 11 and an outer container 12. In the inner container 11 there is a first type of ammunition 13 and in the outer container 12 there is a second type of ammunition 14. Both containers 11 and 12 are divided into a number of sectors and, according to FIG. 2, five cartridges are contained in each sector. In the inner container 11 there is a first conveying device 15, and in the outer container 12 there is another first conveying device 16. These two first conveying devices, which are also referred to as removal devices 15, 16 or as skewed skew, look the same. The expression "skewed skew" can be understood from FIG. 2 and the following description. Only one of the first two conveying devices is explained below. 2 and 3, the first conveyor 16 has two rollers 17 and 18, over which an endless belt 19 is guided. 3, two rollers 17, 17a and 18, 18a can be provided instead of a single roller 17 and 18, and two narrow conveyor belts 19 and 19a can be provided instead of a single wide conveyor belt 19. Two carriers 20 and 21 are fastened to these belts 19 and 19a. The endless belt 19 with the two drivers 20 and 21 moves in the direction of arrow A, the upper driver 21 pushing a cartridge 22 of one sector out of the drum magazine 10. The other driver 20 will then bump against the bottom cartridge 23 of the next sector and thereby push the top cartridge 24 of the next sector out of the drum magazine. 1, the entire drum magazine 10 rotates in a clockwise direction, ie in the direction of the arrow B in FIGS. 1-3, during the removal of the cartridges from the outer container. This rotation of the drum 10 when the cartridges are ejected from the magazine 10 causes the cartridge 23 (FIG. 2) to incline upwards when it is ejected by the conveying device 16 moved and comes to the point where the cartridge 22 is in Fig. 2. The cartridge 22 of the one sector and the cartridge 24 of the next sector are thus not handed over to a second, endless conveyor device 25 at the same location. This second, endless conveyor device 25 conveys the cartridge in the direction of arrow D and brings the cartridges to a firearm, not shown. The conveyor belt 25a of the second conveyor device 25 is guided according to FIG. 2 over two rollers 26 and 27, and according to FIGS. 3 and 4 the conveyor belt 30 of the second conveyor device is guided over a single roller 31.

Gemäss Fig. 2 bewegt sich zwischen den beiden Rollen 26 und 27 das endlose Förderband 25a in horizontaler Richtung von Rolle 26 zu Rolle 27. Es spielt daher bei der bekannten Vorrichtung keine Rolle, dass, wie erwähnt, die Patrone 22 an einer anderen Stelle aus dem Behälter 12 der Fördervorrichtung 25 übergeben wird als die Patrone 24, die gemäss Fig. 2 weiter rechts dem Förderband 25a übergeben wird. Die Patronen aus dem inneren Behälter 11 werden einem zweiten Förderband 28 der zweiten Fördervorrichtung 25 übergeben, das sich in Richtung der Pfeile D bewegt, wobei die andere erste Fördervorrichtung 15 die Patronen aus dem inneren Behälter 11 herausschiebt. Auch das zweite Förderband 28 ist über nicht dargestellte Rollen geführt, die im wesentlichen koaxial zu den Rollen 26 und 27 angeordnet sind, sich jedoch in entgegengesetzter Richtung drehen.According to FIG. 2, the endless conveyor belt 25a moves from roll 26 to roll 27 between the two rolls 26 and 27. It therefore does not matter in the known device that, as mentioned, the cartridge 22 plays out at a different location the container 12 of the conveyor 25 is transferred as the cartridge 24, which is transferred to the conveyor belt 25a further to the right in FIG. 2. The cartridges from the inner container 11 are transferred to a second conveyor belt 28 of the second conveyor device 25, which moves in the direction of the arrows D, the other first conveyor device 15 pushing the cartridges out of the inner container 11. The second conveyor belt 28 is also guided over rollers, not shown, which are arranged essentially coaxially with the rollers 26 and 27, but rotate in the opposite direction.

Es hat sich nun gezeigt, dass die bisher beschriebene Vorrichtung wesentlich vereinfacht werden kann, d.h., die Ubergabe der Patronen von der ersten Fördervorrichtung 15, 16 zur zweiten Fördervorrichtung 25 kann wesentlich vereinfacht werden, wie anhand der Fig. 3 und 4 erläutert werden soll.It has now been shown that the device described so far can be significantly simplified, i.e. the transfer of the cartridges from the first conveyor device 15, 16 to the second conveyor device 25 can be significantly simplified, as will be explained with reference to FIGS. 3 and 4.

Gemäss Fig. 3 treibt ein Motor 37 über drei Zahnräder 38 eine Welle 39 an. Auf dieser Welle 39 sind einerseits die Rollen 31, 31 a, die hier als Kettenräder dargestellt sind, befestigt und andererseits ein Zahnrad 40, das über Zahnräder 41 die erste Fördervorrichtung 15 bzw.16 antreibt.Die Zahnräder 41 treiben eine Welle 42 an, auf der die Rollen 18 und 18a befestigt sind. An der Welle 39 ist ferner eine Schnecke 43 befestigt, welche über ein Getriebe 44 den inneren Behälter 11 bzw. den äusseren Behälter 12 antreiben, von dem in Fig. 3 nur ein Innenzahnkranz 45 angedeutet ist. Aus den Pfeilen B ist ersichtlich, dass sich die beiden Behälter 11 und 12 in entgegengesetzter Richtung drehen.3, a motor 37 drives a shaft 39 via three gear wheels 38. On this shaft 39, on the one hand, the rollers 31, 31 a, which are shown here as sprockets, are fastened and, on the other hand, a gear 40, which drives the first conveyor device 15 or 16 via gear wheels 41. The gear wheels 41 drive a shaft 42 which the rollers 18 and 18a are attached. On the shaft 39, a worm 43 is also fastened, which drive the inner container 11 or the outer container 12 via a gear 44, of which only an inner ring gear 45 is indicated in FIG. 3. It can be seen from the arrows B that the two containers 11 and 12 rotate in the opposite direction.

In Fig. 4 ist von der ersten Fördervorrichtung 15 und 16 nur der obere Teil dargestellt, nämlich die obere Rolle 18, 18a, das endlose Förderband 19, 19a und der eine Mitnehmer 21. Durch diesen Mitnehmer 21 wird die Patrone 22 aus dem Trommelmagazin 10 herausgeschoben. Von diesem Trommelmagazin 10 ist in Fig. 4 nur eine obere Wand angedeutet, welche eine Öffnung 29 aufweist, die gerade so gross ist, dass rechts die letzte Patrone 22 eines Sektors und anschliessend links die erste Patrone 24 des nächsten Sektors aus dem Magazin 10 ausgestossen werden kann. Gemäss Fig. 3 ist die endlose Förderkette 30 über eine einzige Rolle oder Sternrad 31 geführt und bewegt sich in Richtung der Pfeile D. Sowohl die Patrone 22 als auch die Patrone 24 sind in Fig. 4 in vier verschiedenen Stellungen zu verschiedenen Zeitpunkten dargestellt und mit den Bezugsziffern 22, 221, 222 und 223 sowie 24, 241, 242, 243 bezeichnet, wobei die letzte Stellung der einen Patrone 223 mit der letzten Stellung der anderen Patrone 243 zusammenfällt. Zur sicheren Führung der beiden Patronen 22, 24 bei der Übergabe von der ersten Fördervorrichtung 15, 16 zur zweiten Fördervorrichtung 30 sind zwei schwenkbare Klappen 32, 33 vorhanden, welche um Achsen 34 und 35 schwenkbar sind. Für die Übergabe der Patrone 22 an die zweite Fördervorrichtung 30 befinden sich die beiden Klappen 32 und 33 in der mit ausgezogenen Linien dargestellten Lage, und für die Übergabe der Patrone 24 an die endlose Förderkette 30 befinden sich die beiden Klappen 32 und 33 in der mit gestrichelten Linien dargestellten Stellung. Zur Verschwenkung der beiden Klappen 32 und 33 dient eine Kurvenscheibe 36, welche die Klappe 33 aus der ersten in die zweite, mit gestrichelten Linien dargestellte Stellung verschwenkt. Über eine Stange 46 wird dabei auch die andere Klappe 32 verschwenkt. Die Öffnung 29 ist ortsfest. Die Kurvenscheibe 36 ist auch in Fig. 3 angedeutet und befindet sich dort auf Welle 39, während sie sich in der vereinfachten schematischen Darstellung gemäss Fig. 4 weiter unten rechts befindet.4, only the upper part of the first conveyor device 15 and 16 is shown, namely the upper roller 18, 18a, the endless conveyor belt 19, 19a and the one carrier 21. The carrier 22 is removed from the drum magazine 10 by this carrier 21 pushed out. Of this drum magazine 10, only an upper wall is indicated in FIG. 4, which has an opening 29 which is just large enough to expel the last cartridge 22 of one sector on the right and then the first cartridge 24 of the next sector on the left can be. 3, the endless conveyor chain 30 is guided over a single roller or star wheel 31 and moves in the direction of the arrows D. Both the cartridge 22 and the cartridge 24 are shown in FIG. 4 in four different positions at different times and with the reference numerals 22, 22 1 , 22 2 and 223 and 24, 241, 24 2 , 24 3 denotes, the last position of the one cartridge 22 3 coinciding with the last position of the other cartridge 24 3 . To securely guide the two cartridges 22, 24 during the transfer from the first conveying device 15, 16 to the second conveying device 30, there are two pivotable flaps 32, 33 which are pivotable about axes 34 and 35. For the transfer of the cartridge 22 to the second conveyor device 30, the two flaps 32 and 33 are in the position shown with solid lines, and for the transfer of the cartridge 24 to the endless conveyor chain 30, the two flaps 32 and 33 are in the same position Position shown by dashed lines. A cam disk 36 is used to pivot the two flaps 32 and 33, which pivots the flap 33 from the first into the second position, shown with dashed lines. The other flap 32 is also pivoted via a rod 46. The opening 29 is stationary. The cam disk 36 is also indicated in FIG. 3 and is located there on shaft 39, while in the simplified schematic illustration according to FIG. 4 it is located further down on the right.

Die Wirkungsweise der beschriebenen Patronenzuführvorrichtung ist wie folgt:

  • Bei einem Seriefeuer wird, entsprechend der gewünschten Munitionssorte, einer der beiden Elektromotoren 37 (Fig. 3) eingeschaltet, wodurch über die Zahnräder 38 die Welle 39 und über die Zahnräder 40 und 41 die Welle 42 angetrieben werden. Die Wellen 39 und 42 treiben die beiden Fördervorrichtungen 30 bzw 15, 16 gemäss Fig. 4 an. Die erste Fördervorrichtung 15 bewegt gemäss Fig. 4 zuerst die letzte Patrone 22 eines Sektors des Trommelmagazins 10 schrittweise in die Stellung 221, 222 223, wobei der obere Mitnehmer 21 wirksam ist. Anschliessend bewegt die erste Fördervorrichtung die erste Patrone 24 des nächsten Sektors des Trommelmagazins 10 schrittweise in die Stellung 241, 242 und 243, wobei der untere Mitnehmer 20 (Fig. 3) wirksam ist. Bei der Verschiebung der letzten Patrone 22 des einen Sektors befinden sich die beiden Klappen 32 und 33 in der mit ausgezogenen Linien gezeigten Stellung, und bei der Verschiebung der ersten Patrone 24 des nächsten Sektors befinden sich die beiden Klappen 32 und 33 in der mit gestrichelten Linien gezeigten Stellung. Nach dem Verschieben der letzten Patrone 22 des vorhergehenden Sektors und vor dem Verschieben der ersten Patrone 24 des nächstfolgenden Sektors ist es daher notwendig, die Klappen 32 und 33 aus der mit ausgezogenen Linien dargestellten Lage in die mit gestrichelten Linien gezeigte Lage zu schwenken. Anschliessend werden die beiden Klappen 32 und 33 bei jeder nächstfolgenden Patrone etwas in Richtung des Pfeiles B verschwenkt, da während der Verschiebung der Patronen durch die Fördervorrichtung 15 sich auch das Trommelmagazin 10 in Richtung des Pfeiles B bewegt.
The operation of the cartridge feeder described is as follows:
  • In the case of a series fire, one of the two electric motors 37 (FIG. 3) is switched on in accordance with the desired ammunition type, as a result of which the shaft 39 is driven via the gear wheels 38 and the shaft 42 is driven via the gear wheels 40 and 41. The shafts 39 and 42 drive the two conveying devices 30 and 15, 16 according to FIG. 4. 4, the first conveyor device 15 first moves the last cartridge 22 of a sector of the drum magazine 10 step by step into the position 221, 222 223, the upper driver 21 being effective. The first conveyor device then moves the first cartridge 24 of the next sector of the drum magazine 10 step by step into the positions 241, 242 and 243, the lower driver 20 (FIG. 3) being effective. When the last cartridge 22 of one sector is displaced, the two flaps 32 and 33 are in the position shown with solid lines, and when the first cartridge 24 of the next sector is displaced, the two flaps 32 and 33 are in that with dashed lines shown position. After moving the last cartridge 22 of the previous sector and before moving the first cartridge 24 of the next sector, it is therefore necessary to pivot the flaps 32 and 33 from the position shown in solid lines to the position shown in dashed lines. The two flaps 32 and 33 are then pivoted somewhat in the direction of arrow B for each next cartridge, since the drum magazine 10 also moves in the direction of arrow B during the displacement of the cartridges by the conveying device 15.

Statt der Stange oder dem Schieber 46 (Fig. 4) kann jede einzelne Klappe 32 und 33 durch eine separate Kurvenscheibe 36 angetrieben sein. Wie aus Fig. 3 ersichtlich, kann die eine Klappe 33 durch zwei hintereinander angeordnete Klappen 33 und 33a ersetzt werden, die auf einer gemeinsamen Achse 34 gelagert sind, wobei die eine Klappe 33 das hintere Ende einer Patrone 22, 24 abstützt und die andere Klappe 33a das vordere Ende der selben Patrone 22, 24 abstützt. Die gegenüberliegende Klappe 32 stützt den mittleren Teil der Patrone 22, 24 ab. Da die im Trommelmagazin 10 befindlichen Patronen 22, 24 sich auf einem Kreis bewegen (siehe Fig. 1), legt das vordere Ende der Patrone 22, 24 einen kleineren Weg zurück als das hintere Ende, die beiden hintereinander angeordneten Klappen 33 und 33a müssen daher nicht um denselben Betrag geschwenkt werden, vorzugsweise ist daher für jede Klappe 33 und 33a je eine separate Steuerkurve 36 bzw. 36a vorgesehen, wobei die beiden Steuerkurven 36 und 36a verschieden geformt sind.Instead of the rod or slide 46 (FIG. 4), each individual flap 32 and 33 can be driven by a separate cam plate 36. As can be seen from FIG. 3, one flap 33 can be replaced by two flaps 33 and 33a arranged one behind the other, which are mounted on a common axis 34, one flap 33 supporting the rear end of a cartridge 22, 24 and the other flap 33a supports the front end of the same cartridge 22, 24. The opposite flap 32 supports the central part of the cartridge 22, 24. Since the cartridges 22, 24 located in the drum magazine 10 move in a circle (see FIG. 1), the front end of the cartridge 22, 24 travels a smaller distance than the rear end, the two flaps 33 and 33a arranged one behind the other must therefore are not pivoted by the same amount, therefore a separate control curve 36 or 36a is preferably provided for each flap 33 and 33a, the two control curves 36 and 36a being shaped differently.

Claims (5)

1. Conveyor device for feeding cartridges (22, 24) to a gun from a drum magazine (10) subdivided into a number of sectors, each containing a row of cartridges (22, 24),
- with a first conveyor device (15, 16) which pushes the rows of cartridges (22, 24) one by one out of the sectors of the drum magazine (10);
- with a second conveyor device (30) for transporting to the gun the cartridges (22, 24) pushed out of the sectors;
- with means to turn the drum magazine (10) in a given direction, each sector of the drum magazine (10) reaching a withdrawal position as the drum magazine (10) turns in said direction;
- each row of cartridges is pushed in a first, given direction from the sector currently in the withdrawal position;
- this first conveyor device is arranged at an angle, and its angular position forms the resultant of the given direction of rotation of the drum magazine (10) and the given direction in which the cartridges (22, 24) are pushed out of the sectors;
- with a return stop (32, 33) - which has at least one swivellable flap (32, 33), - between the two conveyor devices (15, 16, 30), to prevent cartridges (22, 24) from falling into the sectors that have already been emptied, characterised in that the return stop (32, 33) has at least one additional, likewise swivellable flap (32, 33), which are interconnected and which together constitute a passage, initially narrowing and then broadening out, which is funnel-shaped and adapted to swivel, and along which the cartridges (22, 24) are pushed out of the magazine (10) by the first conveyor device (15, 16) to the second conveyor device (30).
2. Conveyor device according to Claim 1, characterised in that the two flaps (32, 33) are interconnected by means of a rod or a slide (46), and that a disc cam (36) is arranged so as to swivel the two flaps (32, 33).
3. Conveyor device according to Claim 1, characterised in that the two flaps (32, 33) are each driven by a separate disc cam (36).
4. Conveyor device according to Claim 1, characterised in that the swivellable, funnel-shaped passage is constituted by three swivellable flaps (32, 33, 33a), of which one flap (32) is situated on one side of the cartridge (22, 24) in the middle portion thereof and the other two flaps (33, 33a) are situated on the opposite side of the cartridge (22, 24), respectively at the front and back ends thereof.
5. Conveyor device according to Claim 4, characterised in that for each of the two flaps (33, 33a) arranged on one side of the cartridge (22, 24) there is arranged a separate disc cam (36, 36a), and in that the third flap (32) is connected to the other two flaps (33, 33a) by means of a slide (46).
EP86117378A 1986-02-04 1986-12-13 Apparatus for feeding cartridges to a firearm from a drum magazine Expired EP0233347B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH42386 1986-02-04
CH423/86 1986-02-04

Publications (2)

Publication Number Publication Date
EP0233347A1 EP0233347A1 (en) 1987-08-26
EP0233347B1 true EP0233347B1 (en) 1989-02-01

Family

ID=4186689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117378A Expired EP0233347B1 (en) 1986-02-04 1986-12-13 Apparatus for feeding cartridges to a firearm from a drum magazine

Country Status (6)

Country Link
US (1) US4742756A (en)
EP (1) EP0233347B1 (en)
JP (1) JPS62182598A (en)
BR (1) BR8700481A (en)
DE (1) DE3662014D1 (en)
ES (1) ES2006678B3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4882971A (en) * 1988-05-27 1989-11-28 Teleflex, Incorporated Linkless ammunition transporter
EP0403776A1 (en) * 1989-06-22 1990-12-27 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Cartridge magazine and cartridge loading device
US5218162A (en) * 1992-01-21 1993-06-08 General Electric Co. Double-ended ammunition handling system for rapid-fire guns
FR2715463B1 (en) * 1994-01-21 1996-04-05 Giat Ind Sa Ammunition supply system for a medium caliber firearm.
US5905224A (en) * 1998-06-18 1999-05-18 Paul William Jordan Pulley belt magazine
DE19903346C1 (en) * 1999-01-28 2000-08-17 Heckler & Koch Gmbh Ammunition feed for beltless ammunition
US8291806B2 (en) * 2010-12-27 2012-10-23 Paul J Rael Helical ammunition magazine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL94288C (en) * 1955-08-16
US3683743A (en) * 1969-08-01 1972-08-15 Stoner Eugen Morrison Linkless cartridge feed system
US3969980A (en) * 1974-04-12 1976-07-20 American International Corporation Machine gun
EP0111780B1 (en) * 1982-12-22 1988-01-20 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Device for feeding ammunition from a drum magazine to a gun

Also Published As

Publication number Publication date
US4742756A (en) 1988-05-10
BR8700481A (en) 1987-12-08
DE3662014D1 (en) 1989-03-09
EP0233347A1 (en) 1987-08-26
ES2006678B3 (en) 1991-03-01
JPS62182598A (en) 1987-08-10

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