EP0231493B1 - Conveyor chain for feeding cartridges to automatic guns - Google Patents

Conveyor chain for feeding cartridges to automatic guns Download PDF

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Publication number
EP0231493B1
EP0231493B1 EP86117391A EP86117391A EP0231493B1 EP 0231493 B1 EP0231493 B1 EP 0231493B1 EP 86117391 A EP86117391 A EP 86117391A EP 86117391 A EP86117391 A EP 86117391A EP 0231493 B1 EP0231493 B1 EP 0231493B1
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EP
European Patent Office
Prior art keywords
conveyor chain
link
chain
cup
loops
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
EP86117391A
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German (de)
French (fr)
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EP0231493A1 (en
Inventor
Hanspeter Novet
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.)
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Publication date
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0231493A1 publication Critical patent/EP0231493A1/en
Application granted granted Critical
Publication of EP0231493B1 publication Critical patent/EP0231493B1/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
    • F41A9/76—Magazines having an endless-chain conveyor
    • 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
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/04—Feeding of unbelted ammunition using endless-chain belts carrying a plurality of ammunition

Definitions

  • the invention relates to a cup chain according to the preamble of claim 1.
  • a cartridge supply channel and a disk channel are arranged between the ammunition container and the firearm, in which there is an endless conveyor chain which is located on a guide rail from the ammunition container up to the firearm.
  • This guide rail has a T-shaped groove, into which a corresponding T-shaped extension of the conveyor chain protrudes.
  • This conveyor chain can be extended and shortened in order to keep the acceleration forces required for the ammunition supply small at the beginning and at the end of a burst of fire. In this device there is thus also a groove for lateral guidance of the cup chain.
  • the known conveyor or cup chains have the disadvantage that, on the one hand, they require complex guide rails and, on the other hand, they have no means for pushing the cartridges transported up to the firearm into the weapon.
  • cup chains are also described in US Pat. No. 3,720,301, DE-A 2 114 552 and US Pat. No. 3,800,937 and each have a cam with which the cartridges can be inserted into the firearm. However, this cam is not used to guide the cup chain in the cartridge feed channel.
  • the object which is to be achieved with the present invention is to provide a cup chain which does not have the disadvantages mentioned, which does not require a separate guide rail in the cartridge feed channel for guiding the cup chain and which does not require any special means for combing out the cartridges from the cup chain and which can also be easily passed through a strongly curved cartridge feed channel.
  • the cup chain according to the invention has, in addition to the features in the preamble of claim 1, the features in the characterizing part of claim 1.
  • the cam of the one link, the sword of the preceding link and the common joint axis preferably lie in a plane arranged transversely to the direction of movement of the cup chain.
  • each eyelet of a link preferably projects between two eyelets of the adjacent link, a bolt which projects through these three eyelets being held in this central eyelet by a ball joint and projecting into elongated holes in the two outer eyelets.
  • each link or each cup 16 of the cup chain 13 has two first eyelets 21 to which the previous link 16 is articulated and a second eyelet 22 to which the next link 16 of the cup chain 13 is articulated.
  • the second eyelet 22 of one link 16 passes between the two first eyelets 21 of the next link 16 (see FIG. 4).
  • the actual cup 23 for receiving a cartridge 12 is located between these two eyelets 21 and 22.
  • This cup 23 has on it the end of which has a collar 24 against which the shoulder of a cartridge case rests. This collar 24 prevents the cartridge 12 from sliding out of the cup 23 at the front.
  • two feed cams 25 are attached to the cup 23, the meaning of which is explained below with reference to FIGS. 1 and 2.
  • an arcuate rib 26 is provided at both ends of the cup 23.
  • a sword 27 is also arranged on the second eyelet 22, through which the cup chain 13 is guided in a corresponding guide groove 28, 29 of the disk channel 18.
  • the disk channel 18 is formed by a number of disks which are pivotally mounted about a common axis 35.
  • a rod 36 is guided in an elongated hole 37 of the disk channel 18, which ensures that the individual disks of the disk channel 18 fan out evenly when the weapon is raised.
  • this is assumed to be known and is therefore not further explained here.
  • the two cams 25 of a link 16 of the cup chain 13 are supported on a guide surface 31 of the recess 19 of the disk channel 18, or on a guide surface 32 of the recess 20 of the same disk channel 18.
  • the two first eyelets 21 are supported on guide surfaces 33 and 34 of the recesses 19 and 20 of the disk channel 18.
  • the links 16 of the cup chain 13 are thus guided on two opposite guide surfaces 31 and 33 or 32 and 34 (see FIG. 1), which means that no additional guide rails are required.
  • the individual links 16 of the cup chain 13 are connected to one another by bolts 30.
  • This bolt 30 is fastened in a ball joint 38 in the eyelet 22 (FIG. 3) and projects into the elongated holes 39 of the two eyelets 21 of the adjacent link 16.
  • the bolt 30, which connects two links 16 of the cup chain 13 to one another, is located approximately in one plane between the sword 27 of the one link 26 and the cam 25 of the other link 26.
  • This arrangement ensures that the cup chain 13 can also be passed through a strongly curved cartridge feed channel 18 without the passage cross section having to be increased in an unfavorable manner.
  • the collar 24 on the cup 23 prevents the cartridge 12, with its tip first, from sliding out of the cup 23 and with its tip against the cartridge supply channel 18. This is necessary so that the tip of the cartridge is not damaged.
  • a guide surface 40 prevents the cartridge 12 from falling out of the cup 23 of the cup chain 13 in the opposite direction. 1, shortly before reaching the weapon 10, the supplied cartridges 12 reach the guide rail 17 and slide thereon to the inlet opening 11 of the weapon 10, the cam 25 of the link 16 of the cup chain 13 pushing the cartridge 12 into the weapon 10 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chain Conveyers (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Description

Die Erfindung betrifft eine Becherkette gemäss dem Oberbegriff des Anspruches 1.The invention relates to a cup chain according to the preamble of claim 1.

Bei einer bekannten Becherkette zum Zuführen von Patronen aus einem Munitionsbehälter zu einer automatischen Feuerwaffe (siehe EP-A 0 152 549) ist zwischen Munitionsbehälter und Feuerwaffe ein Patronenzuführkanal und ein Scheibenkanal angeordnet, in denen sich eine endlose Förderkette befindet, welche auf einer Führungsschiene vom Munitionsbehälter bis zur Feuerwaffe geführt ist. Diese Führungsschiene weist eine T-förmige Nut auf, in welche ein entsprechender T-förmiger Ansatz der Förderkette hineinragt. Diese Förderkette ist verlängerbar und verkürzbar, um die am Anfang und am Ende eines Feuerstosses erforderlichen Beschleunigungskräfte für die Munitionszufuhr klein zu halten. Bei dieser Vorrichtung ist somit ebenfalls eine Nut zur seitlichen Führung der Becherkette vorhanden.In a known cup chain for feeding cartridges from an ammunition container to an automatic firearm (see EP-A 0 152 549), a cartridge supply channel and a disk channel are arranged between the ammunition container and the firearm, in which there is an endless conveyor chain which is located on a guide rail from the ammunition container up to the firearm. This guide rail has a T-shaped groove, into which a corresponding T-shaped extension of the conveyor chain protrudes. This conveyor chain can be extended and shortened in order to keep the acceleration forces required for the ammunition supply small at the beginning and at the end of a burst of fire. In this device there is thus also a groove for lateral guidance of the cup chain.

Die bekannten Förder- oder Becherketten haben den Nachteil, dass sie einerseits aufwendige Führungsschienen benötigen und dass sie andererseits keine Mittel aufweisen, um die bis zur Feuerwaffe transportierten Patronen in die Waffe hineinzuschieben.The known conveyor or cup chains have the disadvantage that, on the one hand, they require complex guide rails and, on the other hand, they have no means for pushing the cartridges transported up to the firearm into the weapon.

Solche Becherketten sind auch in der US-A 3 720 301, in der DE-A 2 114 552 und in der US-A 3 800 937 beschrieben und weisen je einen Nocken auf, mit dem die Patronen in die Feuerwaffe eingeschoben werden können. Dieser Nocken dient jedoch nicht zur Führung der Becherkette im Patronenzuführkanal.Such cup chains are also described in US Pat. No. 3,720,301, DE-A 2 114 552 and US Pat. No. 3,800,937 and each have a cam with which the cartridges can be inserted into the firearm. However, this cam is not used to guide the cup chain in the cartridge feed channel.

Die Aufgabe, welche mit der vorliegenden Erfindung gelöst werden soll, besteht in der Schaffung einer Becherkette, welche die erwähnten Nachteile nicht aufweist, die im Patronenzuführkanal keine separate Führungsschiene zur Führung der Becherkette benötigt, die keine besonderen Mittel zum Auskämmen der Patronen aus der Becherkette benötigt und welche sich leicht auch durch einen stark gekrümmten Patronenzuführkanal hindurchführen lässt.The object which is to be achieved with the present invention is to provide a cup chain which does not have the disadvantages mentioned, which does not require a separate guide rail in the cartridge feed channel for guiding the cup chain and which does not require any special means for combing out the cartridges from the cup chain and which can also be easily passed through a strongly curved cartridge feed channel.

Die erfindungsgemässe Becherkette, mit der diese Aufgabe gelöst wird, weist ausser den Merkmalen im Oberbegriff des Anspruches 1 auch die Merkmale im Kennzeichen des Anspruches 1 auf. Vorzugsweise liegt der Nocken des einen Gliedes, das Schwert des vorhergehenden Gliedes und die gemeinsame Gelenkachse in einer quer zur Bewegungsrichtung der Becherkette angeordneten Ebene.The cup chain according to the invention, with which this object is achieved, has, in addition to the features in the preamble of claim 1, the features in the characterizing part of claim 1. The cam of the one link, the sword of the preceding link and the common joint axis preferably lie in a plane arranged transversely to the direction of movement of the cup chain.

Ferner ragt vorzugsweise je eine Öse eines Gliedes zwischen zwei Ösen des benachbarten Gliedes hinein, wobei ein Bolzen, der durch diese drei Ösen hindurchragt, durch ein Kugelgelenk in dieser mittleren Öse gehalten ist und in Langlöcher der beiden äusseren Ösen hineinragt.Furthermore, each eyelet of a link preferably projects between two eyelets of the adjacent link, a bolt which projects through these three eyelets being held in this central eyelet by a ball joint and projecting into elongated holes in the two outer eyelets.

Diese erfindungsgemässe Becherkette hat folgende Vorteile:

  • a) Die Becherkette kann ohne Schwierigkeiten durch einen stark gekrümmten Patronenzuführkanal hindurchgeführt werden, da der Nocken des einen Gliedes, das Schwert des vorhergehenden Gliedes und die gemeinsame Gelenkachse in einer quer zur Bewegungsrichtung der Becherkette angeordneten Ebene liegen.
  • b) Eine besondere Führungsschiene für die Becherkette ist nicht erforderlich, da sich die einzelnen Glieder der Becherkette an zwei gegenüberliegenden Wänden des Patronenzuführkanals abstützen und da ein Schwert der Becherkette in einer Nut des Patronenzuführkanales geführt ist.
  • c) Das Auskämmen der Patronen aus den einzelnen Bechern der Becherkette bei der Feuerwaffe wird dadurch erleichtert, dass jedes Glied der Becherkette einen Nocken aufweist, mit dem die Patronen in die Feuerwaffe eingeschoben werden.
This cup chain according to the invention has the following advantages:
  • a) The cup chain can be passed through a strongly curved cartridge feed channel without difficulty, since the cam of the one link, the sword of the previous link and the common joint axis lie in a plane arranged transversely to the direction of movement of the cup chain.
  • b) A special guide rail for the cup chain is not necessary, since the individual links of the cup chain are supported on two opposite walls of the cartridge supply channel and because a sword of the cup chain is guided in a groove of the cartridge supply channel.
  • c) The combing out of the cartridges from the individual cups of the cup chain for the firearm is facilitated in that each link in the cup chain has a cam with which the cartridges are inserted into the firearm.

Ein Ausführungsbeispiel der erfindungsgemässen Becherkette ist anhand der beigefügten Zeichnung im folgenden ausführlich beschrieben. Es zeigt:

  • Fig. 1 einen Schnitt nach Linie I-I in Fig. 2, teilweise in Ansicht, einer über eine Umlenkrolle geführten Becherkette neben einer Feuerwaffe;
  • Fig. 2 einen Schnitt nach Linie 11-11 in Fig. 1;
  • Fig. 3 ein einzelnes Glied der Becherkette in Seitenansicht;
  • Fig. 4 das selbe Glied der Becherkette wie in Fig. 3, in einer Ansicht von vorne (Pfeil IV in Fig. 3);
  • Fig. 5 das selbe Glied der Becherkette wie in Fig. 4, in einer Ansicht von oben (Pfeil V in Fig. 4).
An embodiment of the cup chain according to the invention is described in detail below with reference to the accompanying drawing. It shows:
  • 1 shows a section along line II in FIG. 2, partially in view, of a cup chain guided over a deflection roller next to a firearm;
  • Fig. 2 is a section along line 11-11 in Fig. 1;
  • 3 shows a single link of the cup chain in a side view;
  • Fig. 4 shows the same link of the cup chain as in Fig. 3, in a view from the front (arrow IV in Fig. 3);
  • Fig. 5 shows the same link of the cup chain as in Fig. 4, in a view from above (arrow V in Fig. 4).

Gemäss Fig. 1 ist von einer Feuerwaffe 10 nur die Eintrittsöffnung 11 für die Patronen 12 dargestellt, welche mit Hilfe einer Becherkette 13 der Feuerwaffe 10 zugeführt werden. Diese Becherkette 13 ist über eine Umlenkrolle 14 geführt, welche vier Zähne 15 aufweist, die zwischen die einzelnen Glieder 16 der Becherkette 13 eingreifen. Diese Umlenkrolle 14 dreht sich in Richtung des Pfeiles A und die Becherkette 13 bewegt sich dementsprechend in Richtung des Pfeiles B, wobei sie Patronen 12 aus einem nicht dargestellten Munitionsbehälter der Feuerwaffe 10 zuführt. Eine Führungsschiene 17 dient zum Auskämmen der Patronen 12 aus den einzelnen Gliedern 16 der Becherkette 13. Die ganze Becherkette 13 ist durch einen Scheibenkanal 18 hindurchgeführt, der gemäss Fig. 2 zwei Aussparungen 19 und 20 aufweist. Die mit Patronen 12 gefüllten Glieder 16 der Becherkette 13 bewegen sich durch die obere Aussparung 20 und die leeren Glieder 16 der Becherkette 13 gelangen durch die untere Aussparung 19 zum Munitionsbehälter.1 of a firearm 10, only the inlet opening 11 for the cartridges 12 is shown, which are fed to the firearm 10 with the aid of a cup chain 13. This cup chain 13 is guided over a deflection roller 14 which has four teeth 15 which engage between the individual links 16 of the cup chain 13. This deflection roller 14 rotates in the direction of arrow A and the cup chain 13 accordingly moves in the direction of arrow B, supplying cartridges 12 to the firearm 10 from an ammunition container (not shown). A guide rail 17 is used for combing out the cartridges 12 from the individual links 16 of the cup chain 13. The entire cup chain 13 is guided through a disk channel 18 which, according to FIG. 2, has two cutouts 19 and 20. The links 16 of the cup chain 13 filled with cartridges 12 move through the upper recess 20 and the empty links 16 of the cup chain 13 pass through the lower recess 19 to the ammunition container.

Gemäss Fig. 3, 4 und 5 weist jedes Glied oder jeder Becher 16 der Becherkette 13 zwei erste Ösen 21 auf, an welche das vorhergehende Glied 16 angelenkt wird und eine zweite Ose 22, an welche das nächstfolgende Glied 16 der Becherkette 13 angelenkt wird. Beim Zusammenfügen der einzelnen Glieder 16 zu einer Becherkette 13 gelangt jeweils die zweite Öse 22 eines Gliedes 16 zwischen die beiden ersten Ösen 21 des nächsten Gliedes 16 (siehe Fig. 4). Zwischen diesen beiden Ösen 21 und 22 befindet sich der eigentliche Becher 23 zur Aufnahme einer Patrone 12. Dieser Becher 23 weist an seinem vorderen Ende einen Kragen 24 auf, an welchem die Schulter einer Patronenhülse anliegt. Dieser Kragen 24 verhindert, dass die Patrone 12 vorne aus dem Becher 23 herausgleiten kann. Ferner sind am Becher 23 noch zwei Zuführnocken 25 befestigt, deren Bedeutung weiter unten, anhand der Fig. 1 und 2, erläutert wird. Ausserdem ist an beiden Enden des Bechers 23 je eine kreisbogenförmige Rippe 26 vorhanden. Schliesslich ist an der zweiten Öse 22 noch ein Schwert 27 angeordnet, durch welches die Becherkette 13 in einer entsprechenden Führungsnut 28, 29 des Scheibenkanals 18 geführt ist.3, 4 and 5, each link or each cup 16 of the cup chain 13 has two first eyelets 21 to which the previous link 16 is articulated and a second eyelet 22 to which the next link 16 of the cup chain 13 is articulated. When the individual links 16 are joined to form a cup chain 13, the second eyelet 22 of one link 16 passes between the two first eyelets 21 of the next link 16 (see FIG. 4). The actual cup 23 for receiving a cartridge 12 is located between these two eyelets 21 and 22. This cup 23 has on it the end of which has a collar 24 against which the shoulder of a cartridge case rests. This collar 24 prevents the cartridge 12 from sliding out of the cup 23 at the front. Furthermore, two feed cams 25 are attached to the cup 23, the meaning of which is explained below with reference to FIGS. 1 and 2. In addition, an arcuate rib 26 is provided at both ends of the cup 23. Finally, a sword 27 is also arranged on the second eyelet 22, through which the cup chain 13 is guided in a corresponding guide groove 28, 29 of the disk channel 18.

Gemäss Fig. 1 und 2 wird der Scheibenkanal 18 durch eine Anzahl Scheiben gebildet, welche um eine gemeinsame Achse 35 schwenkbar gelagert sind. In einem Langloch 37 des Scheibenkanals 18 ist eine Stange 36 geführt, welche dafür sorgt, dass sich bei der Elevation der Waffe die einzelnen Scheiben des Scheibenkanals 18 gleichmässig auffächern. Dies wird jedoch als bekannt vorausgesetzt und daher hier nicht weiter erläutert.1 and 2, the disk channel 18 is formed by a number of disks which are pivotally mounted about a common axis 35. A rod 36 is guided in an elongated hole 37 of the disk channel 18, which ensures that the individual disks of the disk channel 18 fan out evenly when the weapon is raised. However, this is assumed to be known and is therefore not further explained here.

Gemäss Fig. 2 stützen sich die beiden Nocken 25 eines Gliedes 16 der Becherkette 13 auf einer Führungsfläche 31 der Aussparung 19 des Scheibenkanals 18 ab, bzw. auf einer Führungsfläche 32 der Aussparung 20 des selben Scheibenkanals 18. Andererseits stützen sich die beiden ersten Ösen 21 auf Führungsflächen 33 und 34 der Aussparungen 19 bzw. 20 des Scheibenkanals 18 ab. Die Glieder 16 der Becherkette 13 sind somit an zwei einander gegenüberliegenden Führungsflächen 31 und 33 bzw. 32 und 34 (siehe Fig. 1) geführt, wodurch keine zusätzlichen Führungsschienen erforderlich sind.2, the two cams 25 of a link 16 of the cup chain 13 are supported on a guide surface 31 of the recess 19 of the disk channel 18, or on a guide surface 32 of the recess 20 of the same disk channel 18. On the other hand, the two first eyelets 21 are supported on guide surfaces 33 and 34 of the recesses 19 and 20 of the disk channel 18. The links 16 of the cup chain 13 are thus guided on two opposite guide surfaces 31 and 33 or 32 and 34 (see FIG. 1), which means that no additional guide rails are required.

Gemäss Fig. 1 sind die einzelnen Glieder 16 der Becherkette 13 durch Bolzen 30 miteinander verbunden. Dieser Bolzen 30 ist in einem Kugelgelenk 38 in der Öse 22 befestigt (Fig. 3) und ragt in die Langlöcher 39 der beiden Ösen 21 des benachbarten Gliedes 16.1, the individual links 16 of the cup chain 13 are connected to one another by bolts 30. This bolt 30 is fastened in a ball joint 38 in the eyelet 22 (FIG. 3) and projects into the elongated holes 39 of the two eyelets 21 of the adjacent link 16.

Die Wirkungsweise der beschriebenen Becherkette zum Zuführen der Patronen aus dem Munitionsbehälter, durch den Patronenzuführkanal, zu einer automatischen Feuerwaffe ist wie folgt:The operation of the cup chain described for feeding the cartridges from the ammunition container, through the cartridge feed channel, to an automatic firearm is as follows:

Gemäss Fig. 1 befindet sich der Bolzen 30, der zwei Glieder 16 der Becherkette 13 miteinander verbindet, zwischen dem Schwert 27 des einen Gliedes 26 und dem Nocken 25 des anderen Gliedes 26, annähernd in einer Ebene. Durch diese Anordnung wird erreicht, dass die Becherkette 13 sich auch durch einen stark gekrümmten Patronenzuführkanal 18 hindurchführen lässt, ohne dass der Durchtrittsquerschnitt in ungünstiger Weise vergrössert werden müsste. Der Kragen 24 am Becher 23 verhindert, dass die Patrone 12, mit ihrer Spitze voran, aus dem Becher 23 herausgleiten kann und mit ihrer Spitze gegen den Patronenzuführkanal 18 stossen kann. Dies ist notwendig, damit die Patronenspitze nicht beschädigt wird. Eine Führungsfläche 40 verhindert, dass die Patrone 12 in der entgegengesetzten Richtung aus dem Becher 23 der Becherkette 13 herausfallen kann. Gemäss Fig. 1 gelangen die zugeführten Patronen 12, kurz vor Erreichen der Waffe 10, auf die Führungsschiene 17 und gleiten auf dieser zur Eintrittsöffnung 11 der Waffe 10, wobei der Nocken 25 des Gliedes 16 der Becherkette 13 die Patrone 12 in die Waffe 10 hineinschiebt.1, the bolt 30, which connects two links 16 of the cup chain 13 to one another, is located approximately in one plane between the sword 27 of the one link 26 and the cam 25 of the other link 26. This arrangement ensures that the cup chain 13 can also be passed through a strongly curved cartridge feed channel 18 without the passage cross section having to be increased in an unfavorable manner. The collar 24 on the cup 23 prevents the cartridge 12, with its tip first, from sliding out of the cup 23 and with its tip against the cartridge supply channel 18. This is necessary so that the tip of the cartridge is not damaged. A guide surface 40 prevents the cartridge 12 from falling out of the cup 23 of the cup chain 13 in the opposite direction. 1, shortly before reaching the weapon 10, the supplied cartridges 12 reach the guide rail 17 and slide thereon to the inlet opening 11 of the weapon 10, the cam 25 of the link 16 of the cup chain 13 pushing the cartridge 12 into the weapon 10 .

Claims (4)

1. Conveyor chain for feeding cartridges (12) from an ammunition magazine to an automatic gun along a cartridge feed channel (18) with two radially internally and externally opposed faces (31, 32, 33, 34) provided with guide slots, the conveyor chain comprising:
- a number of mutually articulated links (16);
- a cup (23) on each link (16) for receiving a cartridge (12);
- two loops (21, 22), fixed on the cup (23) in order to join the link (16), viewed in the transport direction, to the previous and to the following link (16);
- guide members, fixed on the individual links (16), and on which the link (16) of the conveyor chain slides along the cartridge feed channel (18);
- a swivel axle (30) for joining two neighbouring links (16) of the conveyor chain, the swivel axle (30) cooperating with the loops (21, 22), which engage in one another; characterised by the following features:
- a cam (25) projecting radially outwards from the rear cup edge on each link (16) of the conveyor chain, for guiding the chain along the outer surface (31, 32) of the cartridge feed channel (18) and for loading the cartridges (12) into the automatic gun;
- a centreplate (27) on each link (16) of the conveyor chain, which centreplate projects into the guide slots (28, 29) of the cartridge feed channel (18), for lateral guidance of the chain;
- the conveyor chain running between the mutually opposed surfaces (31, 32, 33, 34) of the cartridge feed channel (18), the one surface (31, 32) guiding the conveyor chain at the cams (25) and the other surface (32, 34) guiding the conveyor chain at the loops (21, 22), and the guide surfaces (31, 32, 33, 34) being disposed outside the region of the guide slots (28, 29).
2. Conveyor chain according to Claim 1, characterised in that with the chain taut, the cam (25) of one link (16), the centreplate (27) of the previous link (16) and the common swivel axle (30) lie in one plane at right angles to the direction of movement of the conveyor chain (13), to facilitate the guidance of the conveyor chain along a curved cartridge feed channel (18).
3. Conveyor chain according to Claim 1, characterised in that a loop (22) on each link (16) projects between the two loops (21) of the neighbouring link (16) and in that a bolt (30), which projects through the three loops (21, 22), is held by a spherical joint (38) in said middle loop (22) and projects into slots (39) in the two outer loops (21).
EP86117391A 1986-01-22 1986-12-13 Conveyor chain for feeding cartridges to automatic guns Expired EP0231493B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH23986 1986-01-22
CH239/86 1986-01-22

Publications (2)

Publication Number Publication Date
EP0231493A1 EP0231493A1 (en) 1987-08-12
EP0231493B1 true EP0231493B1 (en) 1989-02-01

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Application Number Title Priority Date Filing Date
EP86117391A Expired EP0231493B1 (en) 1986-01-22 1986-12-13 Conveyor chain for feeding cartridges to automatic guns

Country Status (6)

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US (1) US4841837A (en)
EP (1) EP0231493B1 (en)
JP (1) JPS62172198A (en)
BR (1) BR8700283A (en)
DE (1) DE3662013D1 (en)
ES (1) ES2006679B3 (en)

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US5131315A (en) * 1990-12-24 1992-07-21 General Electric Company Magazine conveyor for large caliber ammunition
FR2715463B1 (en) * 1994-01-21 1996-04-05 Giat Ind Sa Ammunition supply system for a medium caliber firearm.
DE10111646B4 (en) * 2000-05-16 2008-10-02 Heidelberger Druckmaschinen Ag Shielded control cabinet housing
US8807008B2 (en) * 2011-01-14 2014-08-19 Pcp Tactical, Llc Polymer-based machine gun belt links and cartridge casings and manufacturing method
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US10197366B2 (en) 2011-01-14 2019-02-05 Pcp Tactical, Llc Polymer-based cartridge casing for blank and subsonic ammunition
AU2012205378B2 (en) 2011-01-14 2015-12-03 Pcp Tactical, Llc High strength polymer-based cartridge casing and manufacturing method
USD715888S1 (en) 2012-01-13 2014-10-21 Pcp Tactical, Llc Radiused insert
JP6418862B2 (en) * 2014-07-23 2018-11-07 有限会社マルゼン Air gun cartridge
EP3821199B1 (en) 2018-07-30 2024-04-17 Pcp Tactical, Llc Polymer cartridge with enhanced snapfit metal insert and thickness ratios

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Also Published As

Publication number Publication date
DE3662013D1 (en) 1989-03-09
ES2006679B3 (en) 1991-07-16
US4841837A (en) 1989-06-27
BR8700283A (en) 1987-12-08
JPS62172198A (en) 1987-07-29
EP0231493A1 (en) 1987-08-12

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