EP0913660B1 - Device for feeding belted ammuniton - Google Patents

Device for feeding belted ammuniton Download PDF

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Publication number
EP0913660B1
EP0913660B1 EP98890310A EP98890310A EP0913660B1 EP 0913660 B1 EP0913660 B1 EP 0913660B1 EP 98890310 A EP98890310 A EP 98890310A EP 98890310 A EP98890310 A EP 98890310A EP 0913660 B1 EP0913660 B1 EP 0913660B1
Authority
EP
European Patent Office
Prior art keywords
wheel shaft
star wheel
chain
housing
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98890310A
Other languages
German (de)
French (fr)
Other versions
EP0913660A2 (en
EP0913660A3 (en
Inventor
Günther Sulm
Karl Brichta
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.)
Steyr Daimler Puch Spezialfahrzeug AG and Co KG
Original Assignee
Steyr Daimler Puch AG
Steyr Daimler Puch Spezialfahrzeug AG 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 Steyr Daimler Puch AG, Steyr Daimler Puch Spezialfahrzeug AG and Co KG filed Critical Steyr Daimler Puch AG
Publication of EP0913660A2 publication Critical patent/EP0913660A2/en
Publication of EP0913660A3 publication Critical patent/EP0913660A3/en
Application granted granted Critical
Publication of EP0913660B1 publication Critical patent/EP0913660B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F41A9/29—Feeding of belted ammunition
    • F41A9/30—Sprocket-type belt transporters

Definitions

  • the invention relates to a device for conveying taped ammunition to a automatic firearm by means of before the weapon on a star wheel shaft arranged Star wheels.
  • the weapon usually also has an integrated belt feeder, the Star wheels are used to remove the belt from a magazine. They have to Exercise forces of variable size, accelerate quickly from standstill and allowed can not be driven at a rigid speed, with no synchronization to require the weapon.
  • the invention has set itself the goal of such a device continues to improve, which is achieved by the fact that the spring also a closed Chain loop and the chain loop of at least two in a housing stored sprockets is formed, one of which with the star wheel shaft is drivingly connected, wherein the other end of a coil spring on a the chain loop attached pressure piece is supported.
  • Coil springs provided (claim 2), which are at opposite ends Support shoulders in housing. This doubling means a parallel connection of two springs, whereby they are dimensioned smaller with the same power requirement can. It then causes no additional space and increases the Reliability.
  • Another embodiment is that four sprockets are provided, two each on each side (claim 3). This allows instead of a given distance between the two strands of the chain loop big sprocket on each side two small ones are used. This further reduces the space required and allows a higher gear ratio in the drive of the starwheel shaft.
  • Fig. 1 is a frame of the device according to the invention or a magazine wall referred to, depending on the installation and application of the device.
  • the feed direction is with indicated by an arrow 2, the retractable strapped ammunition by a cartridge 3 with a part of the belt 4.
  • Star wheels 5 are mounted on a drum 1 mounted in the frame 1.
  • the drum 6 is via a break bolt coupling 7 with a star wheel shaft 8 drivingly connected, in the Star wheel drum 6 is mounted.
  • a transmission gear 9 is arranged, which consists of a pair of gears consists and is driven by a connecting shaft 10, which in turn with a coaxial sprocket 11 is drivingly connected.
  • the sprocket shaft 11 is between two Bearings 12 stored and carries in the middle between the bearings 12, a first sprocket thirteenth
  • the first sprocket makes the connection to a spring accumulator 30 whose training can be seen better in Fig.2.
  • the first sprocket 13 and a second, third and fourth Sprocket 14,15,16 are surrounded by a closed chain loop 17, the first Trum 18 and a second strand 19 forms.
  • the chain is preferably a common link chain, as used to drive two-wheeled vehicles.
  • Sprockets 13,14,15,16 and the chain loop 17 are in a housing 20, which consists of a first end block 21, which is screwed to the frame 1, a second end block 22 and cladding tubes 23, the connect both end blocks 21,22.
  • the sprockets 14,15,16 are in one of the end blocks 21,22 rotatably mounted.
  • the chain loop 17 is a first pressure piece 24 and a attached second pressure piece 25.
  • the two end blocks 21,22 form at their the cladding tubes 23 facing sides shoulders 26,27.
  • a first coil spring 28 is arranged between the shoulder 26 of the first end block 21st and the first pressure piece 24, a first coil spring 28 is arranged; between the second Shoulder 27 of the second end block 22 and the second pressure piece 25, a second coil spring 29.
  • the two coil springs 28,29 are thus used in parallel and as compression springs.
  • the coil springs 28,29 by an external device, not shown - which is a hand crank in the simplest case - tense.
  • an external device not shown - which is a hand crank in the simplest case - tense.
  • a coupling part 32 is provided, but it could also on the sprocket shaft 11 arranged or even be designed as a freewheel.
  • the plungers 24,25 approximately in the middle of the ducts 23.
  • a ratchet 33rd be provided, in which a frame-solid locking bolt 34 engages.

Description

Die Erfindung handelt von einer Vorrichtung zum Fördern gegurteter Munition zu einer automatischen Feuerwaffe mittels vor der Waffe auf einer Sternradwelle angeordneter Sternräder. Die Waffe verfügt meist auch über einen integrierten Gurtzuführer, die Sternräder dienen dem Abziehen des Gurtes aus einem Magazin. Dazu müssen sie Kräfte variabler Größe ausüben, schnell aus dem Stillstand beschleunigen und dürfen nicht mit starrer Geschwindigkeit angetrieben werden, um keine Synchronisation mit der Waffe zu erfordern.The invention relates to a device for conveying taped ammunition to a automatic firearm by means of before the weapon on a star wheel shaft arranged Star wheels. The weapon usually also has an integrated belt feeder, the Star wheels are used to remove the belt from a magazine. They have to Exercise forces of variable size, accelerate quickly from standstill and allowed can not be driven at a rigid speed, with no synchronization to require the weapon.

Deshalb sind bei schweren automatischen Feuerwaffen starke Fremdantriebe mit aufwendiger Steuerung üblich. Gemäß der DE 20 11 236 C2 ist dazu eine Drehmomentmessung und eine steuerbare Kupplung erforderlich. Abgesehen vom Platzbedarf ist in einem Gefechtsfahrzeug die Störungsanfälligkeit kritisch.Therefore, in heavy automatic firearms are strong third-party drives complicated control usual. According to DE 20 11 236 C2 is a Torque measurement and a controllable clutch required. Apart from Space requirement is critical in a combat vehicle susceptibility to interference.

Aus der US 3 139 796 (Basis für den Obergriff des Anspruchs 1) ist eine insbesondere für Flugzeuge entworfene Vorrichtung der eingangs genannten Art bekannt, bei der die Sternradwelle von einem Federspeicher angetrieben wird, der eine als Druckfeder eingesetzte Schraubenfeder aufweist, deren Ende sich auf Schultern im Gehäuse abstützt.From US 3,139,796 (basis for the preamble of claim 1) is an especially designed for aircraft device of initially mentioned type, in which the star wheel shaft of a spring accumulator is driven, which has a coil spring used as a compression spring whose End is supported on shoulders in the housing.

Durch die hohe Energiedichte (auf den Raumbedarf bezogene gespeicherte Energie) einer Schraubenfeder und den geringen Raumbedarf einer Kette werden sehr kleine Einbaumaße erreicht.Due to the high energy density (stored energy related to the space required) a coil spring and the small footprint of a chain are very small Installation dimensions achieved.

Die Erfindung hat es sich zum Ziel gesetzt eine solche Vorrichtung weiter zu verbessern, was dadurch erreicht wird, daß der Federspeicher weiters eine geschlossene Kettenschlaufe aufweist und die Kettenschlaufe von mindestens zwei in einem Gehäuse gelagerten Kettenrädern gebildet wird, von denen eines mit der Sternradwelle antriebsverbunden ist, wobei sich das andere Ende einer Schraubenfeder auf einem auf der Kettenschlaufe angebrachten Druckstück abstützt.The invention has set itself the goal of such a device continues to improve, which is achieved by the fact that the spring also a closed Chain loop and the chain loop of at least two in a housing stored sprockets is formed, one of which with the star wheel shaft is drivingly connected, wherein the other end of a coil spring on a the chain loop attached pressure piece is supported.

Eines der für die Spannung und Umlenkung der Kettenschlaufe erforderlichen Kettenräder wird so gleich als Abtriebselement verwendet. Die Verbindung zwischen Schraubenfeder und Kette über das Druckstück ist besonders einfach und zudem leicht einstellbar.One of the necessary for the tension and deflection of the chain loop Sprockets is used as the same output element. The connection between Coil spring and chain over the pressure piece is particularly simple and also light adjustable.

In einer bevorzugten Weiterbildung sind im Gehäuse zwei parallel angeordnete Schraubenfedern vorgesehen (Anspruch 2), die sich an entgegengesetzten Enden an Schultern im Gehäuse abstützen. Diese Verdopplung bedeutet eine Parallelschaltung der beiden Federn, wodurch diese bei gleichem Kraftbedarf kleiner dimensioniert werden können. Sie verursacht dann keinen zusätzlichen Raumbedarf und erhöht die Ausfallsicherheit.In a preferred embodiment, two parallel arranged in the housing Coil springs provided (claim 2), which are at opposite ends Support shoulders in housing. This doubling means a parallel connection of two springs, whereby they are dimensioned smaller with the same power requirement can. It then causes no additional space and increases the Reliability.

Eine weitere Ausbildung besteht darin, daß vier Kettenräder vorgesehen sind, je zwei auf jeder Seite (Anspruch 3). Dadurch können statt eines bei gegebenem Abstand zwischen den beiden Trumen der Kettenschlaufe großen Kettenrades auf jeder Seite zwei kleine verwendet werden. Das verringert den Raumbedarf weiter und ermöglicht eine höhere Übersetzung im Antrieb der Sternradwelle.Another embodiment is that four sprockets are provided, two each on each side (claim 3). This allows instead of a given distance between the two strands of the chain loop big sprocket on each side two small ones are used. This further reduces the space required and allows a higher gear ratio in the drive of the starwheel shaft.

Alternativ oder kumulativ kann zur Wahl einer optimalen Übersetzung auch das mit der Sternradwelle antriebsverbundene Kettenrad auf einer Kettenradwelle sitzen, die die Sternradwelle über eine Verbindungswelle und ein Übersetzungsgetriebe antreibt (Anspruch 4). Dank der Verbindungswelle ist das Übersetzungsgetriebe raumökonomisch auf der dem Federspeicher abgewandten Seite der Sternradwelle angeordnet.Alternatively or cumulatively, with the Starwheel shaft drive-connected sprocket sitting on a sprocket shaft, which the Starwheel shaft via a connecting shaft and a transmission gear drives (Claim 4). Thanks to the connecting shaft is the transmission gear raumökonomisch on the side facing away from the spring accumulator side of the star wheel shaft arranged.

Schließlich ist es noch praktisch, wenn die Sternradwelle auf dem dem Übersetzungsgetriebe abgewandten Ende einen Kuppelteil für eine externe Aufziehvorrichtung aufweist (Anspruch 5), so ist sie gut zugänglich.Finally, it is still useful when the starwheel shaft on the Transmission gear facing away from a dome part for an external Mounting device has (claim 5), so it is easily accessible.

Im Folgenden wird die Erfindung anhand von Abbildungen eines Ausführungsbeispieles beschrieben und erläutert. Es stellen dar:

Fig. 1:
Eine Draufsicht auf eine erfindungsgemäße Vorrichtung,
Fig.2:
Einen Schnitt nach II-II in Fig.1.
In the following the invention will be described and explained with reference to figures of an embodiment. They show:
Fig. 1:
A top view of a device according to the invention,
Figure 2:
A section according to II-II in Fig.1.

In Fig. ist mit 1 ein Rahmen der erfindungsgemäßen Vorrichtung bzw eine Magazinwand bezeichnet, je nach Einbau und Anwendung der Vorrichtung. Die Einzugrichtung ist mit einem Pfeil 2 angedeutet, die einzuziehende gegurtete Munition durch eine Patrone 3 mit einem Teil des Gurtes 4. In die Zwischenräume zwischen den Patronen eingreifende Sternräder 5 sind auf einer im Rahmen 1 gelagerten Trommel 6 befestigt. Die Trommel 6 ist über eine Brechbolzenkupplung 7 mit einer Sternradwelle 8 antriebsverbunden, die in der Sternradtrommel 6 gelagert ist. Am der Brechbolzenkupplung 7 gegenüberliegenden Ende der Sternradwelle 8 ist ein Übersetzungsgetriebe 9 angeordnet, das aus einem Zahnradpaar besteht und von einer Verbindungswelle 10 angetrieben wird, die ihrerseits mit einer koaxialen Kettenradwelle 11 antriebsverbunden ist. Die Kettenradwelle 11 ist zwischen zwei Lagern 12 gelagert und trägt in der Mitte zwischen den Lagern 12 ein erstes Kettenrad 13.In Fig. 1 is a frame of the device according to the invention or a magazine wall referred to, depending on the installation and application of the device. The feed direction is with indicated by an arrow 2, the retractable strapped ammunition by a cartridge 3 with a part of the belt 4. In the interstices between the cartridges engaging Star wheels 5 are mounted on a drum 1 mounted in the frame 1. The drum 6 is via a break bolt coupling 7 with a star wheel shaft 8 drivingly connected, in the Star wheel drum 6 is mounted. At the opposite end of the break bolt coupling 7 the star wheel shaft 8, a transmission gear 9 is arranged, which consists of a pair of gears consists and is driven by a connecting shaft 10, which in turn with a coaxial sprocket 11 is drivingly connected. The sprocket shaft 11 is between two Bearings 12 stored and carries in the middle between the bearings 12, a first sprocket thirteenth

Das erste Kettenrad stellt die Verbindung zu einem Federspeicher 30 her, dessen Ausbildung in Fig.2 besser zu erkennen ist. Das erste Kettenrad 13 sowie ein zweites, drittes und viertes Kettenrad 14,15,16 sind von einer geschlossenen Kettenschlaufe 17 umgeben, die ein erstes Trum 18 und ein zweites Trum 19 bildet. Die Kette ist vorzugsweise eine übliche Gliederkette, wie sie zum Antrieb von Zweiradfahrzeugen benutzt wird. Kettenräder 13,14,15,16 und die Kettenschlaufe 17 befinden sich in einem Gehäuse 20, das aus einem ersten Endblock 21, der am Rahmen 1 angeschraubt ist, einem zweiten Endblock 22 sowie Hüllrohren 23, die die beiden Endblöcke 21,22 verbinden. Auch die Kettenräder 14,15,16 sind in einem der Endblöcke 21,22 drehbar gelagert.The first sprocket makes the connection to a spring accumulator 30 whose training can be seen better in Fig.2. The first sprocket 13 and a second, third and fourth Sprocket 14,15,16 are surrounded by a closed chain loop 17, the first Trum 18 and a second strand 19 forms. The chain is preferably a common link chain, as used to drive two-wheeled vehicles. Sprockets 13,14,15,16 and the chain loop 17 are in a housing 20, which consists of a first end block 21, which is screwed to the frame 1, a second end block 22 and cladding tubes 23, the connect both end blocks 21,22. The sprockets 14,15,16 are in one of the end blocks 21,22 rotatably mounted.

Auf den beiden Trumen 18,19 der Kettenschlaufe 17 ist ein erstes Druckstück 24 und ein zweites Druckstück 25 befestigt. Die beiden Endblöcke 21,22 bilden an ihren den Hüllrohren 23 zugekehrten Seiten Schultern 26,27. Zwischen der Schulter 26 des ersten Endblockes 21 und dem ersten Druckstück 24 ist eine erste Spiralfeder 28 angeordnet; zwischen der zweiten Schulter 27 des zweiten Endblockes 22 und dem zweiten Druckstück 25 eine zweite Spiralfeder 29. Entsprechend der entgegengesetzten Bewegungsrichtung der beiden Trume 18,19 sind die Druckstücke 24,25 im entspannten Zustand an entgegengesetzten Enden der Hüllrohre 23. On the two Trumen 18,19 the chain loop 17 is a first pressure piece 24 and a attached second pressure piece 25. The two end blocks 21,22 form at their the cladding tubes 23 facing sides shoulders 26,27. Between the shoulder 26 of the first end block 21st and the first pressure piece 24, a first coil spring 28 is arranged; between the second Shoulder 27 of the second end block 22 and the second pressure piece 25, a second coil spring 29. According to the opposite direction of movement of the two dreams 18,19 are the plungers 24,25 in the relaxed state at opposite ends of the ducts 23rd

Die beiden Spiralfedern 28,29 sind somit parallel und als Druckfedern eingesetzt. Zum Laden des Federspeichers werden die Spiralfedern 28,29 durch eine nicht dargestellte, externe Vorrichtung - die im einfachsten Fall eine Handkurbel ist - gespannt. Dazu ist beispielsweise an der Sternradwelle 8 ein Kuppelteil 32 vorgesehen, er könnte aber auch auf der Kettenradwelle 11 angeordnet oder gar als Freilauf ausgebildet sein. Bei geladenem Federspeicher befinden sich (Fig.2) die Druckstücke 24,25 ungefähr in der Mitte der Hüllrohre 23. Um den Speicher in gespannter Stellung zu blockieren, kann auf der Sternradtrommel ein Sperrrad 33 vorgesehen sein, in das ein rahmenfester Sperrriegel 34 eingreift.The two coil springs 28,29 are thus used in parallel and as compression springs. To load of the spring accumulator, the coil springs 28,29 by an external device, not shown - which is a hand crank in the simplest case - tense. This is for example on the star wheel shaft 8 a coupling part 32 is provided, but it could also on the sprocket shaft 11 arranged or even be designed as a freewheel. When the spring store is loaded are (Fig.2) the plungers 24,25 approximately in the middle of the ducts 23. To the To block memory in the cocked position, on the star wheel drum, a ratchet 33rd be provided, in which a frame-solid locking bolt 34 engages.

Claims (5)

  1. A device for conveying ammunition loaded in a belt to an automatic firearm by means of star wheels (5) arranged on a star wheel shaft (8) in front of the weapon, whereby the star wheel shaft (8) is driven by a spring accumulator (30), which has a helical spring (28, 29) used as compression spring, the end of which sits on shoulders (26, 27) in the housing (20), characterised in that the spring accumulator (30) further has a closed chain loop (17) and the chain loop (17) is formed by at least two chain wheels (13, 16) mounted in a housing, one (13) of which is connected in a driven manner with the star wheel shaft (8), whereby the other end of a helical spring (28, 29) is seated on a thrust piece (24, 25) fitted on the chain loop (17).
  2. The device for conveying ammunition loaded in a belt according to claim 1, characterised in that there are provided in the housing (20) two helical springs (28, 29) arranged parallel, which are supported on opposite shoulders (26, 27) in the housing (20).
  3. The device for conveying ammunition loaded in a belt according to claim 1, characterised in that four chain wheels (13, 14, 15, 16) are provided, two (13, 14/15, 16) on each side.
  4. The device for conveying ammunition loaded in a belt according to claim 1, characterised in that the chain wheel (13) connected in a driven manner with the star wheel shaft (8) sits on a chain wheel shaft (11), which drives the star wheel shaft (8) via a connection shaft (10) and a transmission gear (9).
  5. The device for conveying ammunition loaded in a belt according to claim 4, characterised in that the star wheel shaft (8), on the end facing away from the transmission gear (9), has a coupling part (32) for an external tensioning device.
EP98890310A 1997-10-29 1998-10-22 Device for feeding belted ammuniton Expired - Lifetime EP0913660B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0182897A AT405574B (en) 1997-10-29 1997-10-29 DEVICE FOR PROMOTING BELTED AMMUNITION
AT1828/97 1997-10-29
AT182897 1997-10-29

Publications (3)

Publication Number Publication Date
EP0913660A2 EP0913660A2 (en) 1999-05-06
EP0913660A3 EP0913660A3 (en) 2000-10-18
EP0913660B1 true EP0913660B1 (en) 2003-04-09

Family

ID=3521871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98890310A Expired - Lifetime EP0913660B1 (en) 1997-10-29 1998-10-22 Device for feeding belted ammuniton

Country Status (5)

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US (1) US6029557A (en)
EP (1) EP0913660B1 (en)
AT (1) AT405574B (en)
DE (1) DE59807835D1 (en)
ES (1) ES2194299T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080305020A1 (en) 2007-06-05 2008-12-11 Altitude Medical Llc Device to promote hand sanitization
EP2890281B1 (en) 2012-08-28 2017-11-01 Altitude Medical Inc. Apparatus for dispensing sanitizer fluid via door handles
US10455936B2 (en) 2016-05-06 2019-10-29 Altitude Medical, Inc. Method and apparatus for dispensing sanitizer fluid, opening doors, and recording data pertaining to hand sanitization
US10955207B1 (en) * 2019-12-12 2021-03-23 Nicholas Puleo Flat loop revolving firearm assembly
RU2736063C1 (en) * 2020-06-16 2020-11-11 АКЦИОНЕРНОЕ ОБЩЕСТВО "АКЦИОНЕРНАЯ КОМПАНИЯ "ТУЛАМАШЗАВОД" (АО "АК "Туламашзавод") 30-mm double-automatic shipborne artillery weapon feed system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342065A (en) * 1942-02-09 1944-02-15 Bell Aircraft Corp Oednance
FR907969A (en) * 1943-12-31 1946-03-27 Oerlikon Buehrle Ag Medium caliber automatic cannon
US2524132A (en) * 1946-02-07 1950-10-03 United Shoe Machinery Corp Ammunition feeder
US2719459A (en) * 1949-06-13 1955-10-04 North American Aviation Inc Ammunition booster
US2766663A (en) * 1952-08-15 1956-10-16 Paul H Dixon Feed mechanism
LU33265A1 (en) * 1954-12-16
US3139796A (en) * 1956-02-24 1964-07-07 Robert G Nutting Gas operated feeder for gun
DE2011236C2 (en) 1970-03-10 1982-02-18 Wegmann & Co, 3500 Kassel Automatic weapon ammunition-belt feed drive - has star wheel and inductive motor driven coupling for automatic torque adjustment
DE2430002C2 (en) * 1974-06-22 1983-08-25 Wegmann & Co, 3500 Kassel Belt changing device for automatic firearms
DE3644513C1 (en) * 1986-12-24 1992-08-27 Dornier Gmbh Ammunition feeder
FR2637062B1 (en) * 1988-09-28 1993-10-22 Etat Francais Delegue Armement AUTOMATIC MEDIUM-CALIBER WEAPON WITH HIGH RATE OF FIRE

Also Published As

Publication number Publication date
ATA182897A (en) 1999-01-15
EP0913660A2 (en) 1999-05-06
ES2194299T3 (en) 2003-11-16
DE59807835D1 (en) 2003-05-15
US6029557A (en) 2000-02-29
EP0913660A3 (en) 2000-10-18
AT405574B (en) 1999-09-27

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