EP0388301A1 - Ammunition feeding device for an automatic firearm - Google Patents

Ammunition feeding device for an automatic firearm Download PDF

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Publication number
EP0388301A1
EP0388301A1 EP90400692A EP90400692A EP0388301A1 EP 0388301 A1 EP0388301 A1 EP 0388301A1 EP 90400692 A EP90400692 A EP 90400692A EP 90400692 A EP90400692 A EP 90400692A EP 0388301 A1 EP0388301 A1 EP 0388301A1
Authority
EP
European Patent Office
Prior art keywords
ammunition
weapon
ramp
provider
arc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90400692A
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German (de)
French (fr)
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EP0388301B1 (en
Inventor
Christian Gyre
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.)
Giat Industries SA
Original Assignee
Direction General pour lArmement DGA
Giat Industries SA
Etat Francais
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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Application filed by Direction General pour lArmement DGA, Giat Industries SA, Etat Francais filed Critical Direction General pour lArmement DGA
Publication of EP0388301A1 publication Critical patent/EP0388301A1/en
Application granted granted Critical
Publication of EP0388301B1 publication Critical patent/EP0388301B1/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
    • F41A9/54—Cartridge guides, stops or positioners, e.g. for cartridge extraction
    • F41A9/56—Movable guiding means
    • F41A9/57—Flexible chutes, e.g. for guiding belted ammunition from the magazine to the gun

Definitions

  • the present invention relates to a device for supplying ammunition to an automatic weapon and more particularly to such a weapon movable in translation relative to a fixed provider, this device comprising in known manner means for transferring the ammunition according to an arc of circle between the provider and the weapon, parallel to itself and perpendicular to the translational movement of the weapon.
  • the present invention aims to provide such a device.
  • the subject of the invention is a device for supplying ammunition to an automatic weapon movable in translation relative to a fixed provider, comprising means for transferring the ammunition in an arc between the provider and the weapon, parallel to itself and perpendicular to the translational movement of the weapon, characterized in that it comprises a helical ramp with variable pitch of the same axis as the transfer arc of the ammunition, one end of said ramp being secured to the weapon and its other end being secured to the provider: said ramp having guide means for positioning the munition axially during its transfer.
  • the guide means may include a groove arranged to cooperate with the plate of the shell of the ammunition.
  • the ramp is formed of a plurality of elements arranged to slide relative to each other parallel to the translational movement of the weapon.
  • each element can comprise at least one hole, a flexible wire, for example of the piano cord type passing through each of said holes, the wire having one end mounted on the provider and its other end mounted. on the gun.
  • the sliding of the elements with respect to each other can be ensured by means of a rib formed on each element and arranged to cooperate with a groove of an adjacent element.
  • the circular arc shape of all the elements can be obtained by providing each element with a contact surface with each of the adjacent elements, the two contact surfaces with an element forming a dihedron whose edge is substantially coincident with the axis of the ammunition transfer arc.
  • One end of the ramp being linked to the outfitter, each time an ammunition emerges from the latter, it engages on the helical ramp which then ensures its longitudinal guidance during its transfer to the weapon which is secured to the other end of the ramp.
  • Figures 1 to 4 show globally in the form of blocks the provider 1 and the weapon 2.
  • the ammunition 3 are transferred from the provider to the weapon in a known manner via a chute 4 and a system of power supply constituted by two stars 5 mounted on an axis 6 and by a support ramp 7 whose upper surface 8 is a cylindrical surface centered on the axis 6.
  • the ammunition 3 When the ammunition 3 opens from the chute 4, they are entrained by the surfaces 9 of the stars 5 along the surface 8 so that they are brought to the weapon 2 along a path in an arc centered on axis 6.
  • the chute 4 is integral with the provider 1 while the supply system constituted by the axis 6, the stars 5 and the support ramp 7 are integral with the weapon 2, the axis 6 being mounted in bearings 10 integral of this weapon.
  • the provider 1 is fixed while the weapon 2 moves relative to it in an alternative translational movement represented by the arrow F1 parallel to the axis 6 and to the axes of the ammunition 3.
  • This ramp 11 has its upper end mounted on a fitting 12 secured to the chute 4 and the provider 1 and its lower end mounted on a fitting 13 secured to the weapon 2.
  • the ramp 11 forms, seen in projection perpendicular to the axis 6 an arc of a circle centered on this axis, and its concave surface forms a groove 14 in which is engaged the plate 15 of the casing of the ammunition 3 during transfer .
  • the ammunition 3 therefore arrives at the level of the weapon 2 in a precise axial position determined by the location of the fitting 13 on the weapon 2.
  • the ramp 11 is produced by a stack of elements 16 sliding relative to each other in a direction parallel to the axis 6.
  • Each element 16 has substantially a wedge shape, the two converging surfaces 17 and 18 of which form the contact surfaces with the adjacent elements.
  • the angle formed by these surfaces 17 and 18 and the number of elements 16 is such that the stacking of the elements 16 forms the desired arc of a circle of the ramp 11. When these elements are stacked, the edges of the dihedrons formed by surfaces 17 and 18 are therefore merged with axis 6.
  • the elements 16 slide relative to each other and are assembled using ribs 19 which, in the present case, have a T section and are formed on the face 18 of the element, and a groove 20 of corresponding shape formed in the face 17.
  • Each rib 19 is engaged in the groove 20 of the adjacent element with the exception of the upper element whose rib is engaged in a groove of the same shape of the fitting 12 and the lower element the groove 20 of which receives a rib of corresponding shape from the fitting 13.
  • Each element has on the side of the aforementioned dihedral edge two lateral extensions 21 and 22 which, when the elements 16 are mounted therefore project in the direction of the axis 6, the stack of these extensions forming the guide groove 14 in which is engaged the plate 15 of the socket of the ammunition 3.
  • the width of the elements 16 is such that the extensions 21 and 22 have a spacing giving the rib 14 a width sufficient to avoid jamming of the plate 14 in the extreme positions shown in Figures 3 and 4 of the weapon 2 relative to the provider 1.
  • the base of the ammunition can be engaged in a carriage carrying such a plate.
  • the helical shape of the ramp is provided by two piano strings 23 engaged in the holes 24 substantially perpendicular to the faces 17 and 18 of the element 16.
  • the holes 24 shown in section in Figures 7 and 8 have in their center a part narrow 25, flared on both sides by counterbores 26.
  • the narrow part 24 allows the sliding of the rope 23, the counterbores 26 allow the twisting movements of the rope.
  • the difference in diameter between the narrow part 24 and the wide part 26 controls the maximum torsion and therefore the pitch of the propeller.
  • the piano strings 23 have one end mounted on the fitting 12 and another end mounted on the fitting 13.
  • the minimum length is equal to an arc
  • the maximum length is equal to a cylindrical spiral arc.
  • the attachment to the fittings 12 and 13 of each of the ends of the rope is slidably mounted. The fact that a piano string is used, therefore capable of a certain elastic elongation, contributes to the propulsive braking of the elements 16 of the ramp when one reaches the end of the race.
  • the ammunition 3 is supported at the level of the fitting 12 and is then guided to the weapon where it arrives in a precise position determined by the position of the fitting 13.

Abstract

The invention relates to an ammunition feed device for an automatic firearm (2) movable in translational motion relative to a stationary supply unit (1), comprising means (5, 8) for transferring the ammunition over an arc of a circle between the supply unit and the firearm in parallel with itself and perpendicularly to the translational movement of the firearm. It comprises a helical ramp (11) of variable pitch, and the same axis (6) as the ammunition transfer arc, one end of said ramp being fixed to the firearm and its other end being fixed to the supply unit, said ramp possessing guide means (14) for positioning the ammunition axially during its transfer. <IMAGE>

Description

La présente invention concerne un dispositif d'alimentation en munitions d'une arme automatique et plus particulièrement d'une telle arme mobile en translation par rapport à un pourvoyeur fixe, ce dispositif comportant de façon connue des moyens pour transférer la munition selon un arc de cercle entre le pourvoyeur et l'arme, parallèlement à elle-même et perpendiculairement au mouvement de translation de l'arme.The present invention relates to a device for supplying ammunition to an automatic weapon and more particularly to such a weapon movable in translation relative to a fixed provider, this device comprising in known manner means for transferring the ammunition according to an arc of circle between the provider and the weapon, parallel to itself and perpendicular to the translational movement of the weapon.

Il n'existe pas à l'heure actuelle de tels dispositifs permettant d'amener la munition en un point précis de l'arme quelle que soit la position de cette dernière, et permettant par conséquent de l'introduire sans choc dans la culasse.At the present time there are no such devices making it possible to bring the ammunition to a precise point of the weapon whatever the position of the latter, and consequently making it possible to introduce it without shock into the breech.

La présente invention vise à fournir un tel dispositif.The present invention aims to provide such a device.

A cet effet, l'invention a pour objet un dispositif d'alimentation en munitions d'une arme automatique mobile en translation par rapport à un pourvoyeur fixe, comportant des moyens pour transférer les munitions selon un arc de cercle entre le pourvoyeur et l'arme, parallèlement à elle-même et perpendiculairement au mouvement de translation de l'arme, caractérisé par le fait qu'il comprend une rampe hélicoïdale à pas variable de même axe que l'arc de transfert de la munition, une extrémité de ladite rampe étant solidaire de l'arme et son autre extrémité étant solidaire du pourvoyeur: ladite rampe possédant des moyens de guidage pour positionner la munition axialement au cours de son transfert.To this end, the subject of the invention is a device for supplying ammunition to an automatic weapon movable in translation relative to a fixed provider, comprising means for transferring the ammunition in an arc between the provider and the weapon, parallel to itself and perpendicular to the translational movement of the weapon, characterized in that it comprises a helical ramp with variable pitch of the same axis as the transfer arc of the ammunition, one end of said ramp being secured to the weapon and its other end being secured to the provider: said ramp having guide means for positioning the munition axially during its transfer.

Les moyens de guidage peuvent comprendre une rainure agencée pour coopérer avec le plateau de la douille de la munition.The guide means may include a groove arranged to cooperate with the plate of the shell of the ammunition.

Dans un mode de réalisation préféré de l'invention, la rampe est formée d'une pluralité d'éléments agencés pour coulisser les uns par rapport aux autres parallèlement au mouvement de translation de l'arme.In a preferred embodiment of the invention, the ramp is formed of a plurality of elements arranged to slide relative to each other parallel to the translational movement of the weapon.

Afin d'assurer la forme hélicoïdale à la rampe, chaque élément peut comporter au moins un perçage, un fil souple, par exemple du type corde à piano traversant chacun desdits perçages, le fil ayant une extrémité montée sur le pourvoyeur et son autre extrémité montée sur l'arme.In order to ensure the helical shape of the ramp, each element can comprise at least one hole, a flexible wire, for example of the piano cord type passing through each of said holes, the wire having one end mounted on the provider and its other end mounted. on the gun.

Le coulissement des éléments les uns par rapport aux autres peut être assuré à l'aide d'une nervure formée sur chaque élément et agencé pour coopérer avec une rainure d'un élément adjacent.The sliding of the elements with respect to each other can be ensured by means of a rib formed on each element and arranged to cooperate with a groove of an adjacent element.

La forme en arc de cercle de l'ensemble des éléments peut être obtenue en munissant chaque élément d'une surface de contact avec chacun des éléments adjacents, les deux surfaces de contact d'un élément formant un dièdre dont l'arête est sensiblement confondue avec l'axe de l'arc de transfert de la munition.The circular arc shape of all the elements can be obtained by providing each element with a contact surface with each of the adjacent elements, the two contact surfaces with an element forming a dihedron whose edge is substantially coincident with the axis of the ammunition transfer arc.

L'une des extrémités de la rampe étant liée au pourvoyeur, chaque fois qu'une munition débouche de ce dernier, elle s'engage sur la rampe hélicoïdale qui assure ensuite son guidage longitudinal au cours de son transfert jusqu'à l'arme dont est solidaire l'autre extrémité de la rampe.One end of the ramp being linked to the outfitter, each time an ammunition emerges from the latter, it engages on the helical ramp which then ensures its longitudinal guidance during its transfer to the weapon which is secured to the other end of the ramp.

Ce guidage peut en particulier être assuré à l'aide d'une rainure dans laquelle s'engage (le plateau de la douille de la munition, de sorte que celle-ci se déplace axialement simultanément à son mouvement transversal circulaire de transfert. A l'extrémité terminale de la rampe, elle se trouve par conséquent dans la position souhaitée par rapport à l'arme par laquelle elle est ensuite prise en charge.This guidance can in particular be ensured by means of a groove in which engages (the plate of the shell of the ammunition, so that the latter moves axially simultaneously with its transverse circular transfer movement. he terminal end of the ramp, it is therefore in the desired position relative to the weapon by which it is then supported.

On décrira maintenant à titre d'exemple non limitatif un mode de réalisation particulier de l'invention en référence aux dessins schématiques annexés dans lesquels :

  • - la figure 1 est une vue d'ensemble en élévation d'un dispositif selon l'invention avec le pourvoyeur et l'arme en position relative médiane,
  • - la figure 2 est une vue en coupe selon la ligne II-II de la figure 1,
  • - les figures 3 et 4 sont des vues similaires à la figure 1 avec le pourvoyeur et l'arme dans leurs positions relatives extrêmes,
  • - la figure 5 est une vue de dessus d'un élément de la rampe selon l'invention,
  • - la figure 6 en est une vue en élévation,
  • - les figures 7 et 8 sont des vues en coupe selon les lignes VII-VII et VIII-VIII respectivement de la figure 6.
A particular embodiment of the invention will now be described by way of nonlimiting example with reference to the appended schematic drawings in which:
  • FIG. 1 is an overall elevation view of a device according to the invention with the provider and the weapon in the middle relative position,
  • FIG. 2 is a sectional view along the line II-II of FIG. 1,
  • - Figures 3 and 4 are views similar to Figure 1 with the provider and the weapon in their extreme relative positions,
  • FIG. 5 is a top view of an element of the ramp according to the invention,
  • FIG. 6 is an elevation view thereof,
  • - Figures 7 and 8 are sectional views along lines VII-VII and VIII-VIII respectively of Figure 6.

Les figures 1 à 4 représentent globalement sous forme de blocs le pourvoyeur 1 et l'arme 2. Les munitions 3 sont transférées du pourvoyeur à l'arme de façon connue par l'intermédiaire d'une goulotte 4 et d'un système d'alimentation constitué par deux étoiles 5 montées sur un axe 6 et par une rampe de soutien 7 dont la surface supérieure 8 est une surface cylindrique centrée sur l'axe 6.Figures 1 to 4 show globally in the form of blocks the provider 1 and the weapon 2. The ammunition 3 are transferred from the provider to the weapon in a known manner via a chute 4 and a system of power supply constituted by two stars 5 mounted on an axis 6 and by a support ramp 7 whose upper surface 8 is a cylindrical surface centered on the axis 6.

Lorsque les munitions 3 débouchent de la goulotte 4, elles sont entraînées par les surfaces 9 des étoiles 5 le long de la surface 8 de sorte qu'elles sont amenées jusqu'à l'arme 2 le long d'un trajet en arc de cercle centré sur l'axe 6.When the ammunition 3 opens from the chute 4, they are entrained by the surfaces 9 of the stars 5 along the surface 8 so that they are brought to the weapon 2 along a path in an arc centered on axis 6.

La goulotte 4 est solidaire du pourvoyeur 1 tandis que le système d'alimentation constitué par l'axe 6, les étoiles 5 et la rampe de soutien 7 sont solidaires de l'arme 2, l'axe 6 étant monté dans des paliers 10 solidaires de cette arme.The chute 4 is integral with the provider 1 while the supply system constituted by the axis 6, the stars 5 and the support ramp 7 are integral with the weapon 2, the axis 6 being mounted in bearings 10 integral of this weapon.

Le pourvoyeur 1 est fixe alors que l'arme 2 se déplace par rapport à lui en un mouvement alternatif de translation représenté par la flèche F1 parallèle à l'axe 6 et aux axes des munitions 3.The provider 1 is fixed while the weapon 2 moves relative to it in an alternative translational movement represented by the arrow F1 parallel to the axis 6 and to the axes of the ammunition 3.

Le problème qui se pose est par conséquent d'amener les munitions d'un point précis de l'arme 2 en dépit de ce mouvement.The problem which arises is consequently to bring the ammunition from a precise point of the weapon 2 in spite of this movement.

Ce problème est résolu par unes rampe de guidage 11 hélicoïdale à pas variable.This problem is solved by a helical guide ramp 11 with variable pitch.

Cette rampe 11 a son extrémité supérieure montée sur une ferrure 12 solidaire de la goulotte 4 et du pourvoyeur 1 et son extrémité inférieure montée sur une ferrure 13 solidaire de l'arme 2.This ramp 11 has its upper end mounted on a fitting 12 secured to the chute 4 and the provider 1 and its lower end mounted on a fitting 13 secured to the weapon 2.

La rampe 11 forme, vue en projection perpendiculairement à l'axe 6 un arc de cercle centré sur cet axe, et sa surface concave forme une rainure 14 dans laquelle se trouve engagé le plateau 15 de la douille de la munition 3 en cours de transfert.The ramp 11 forms, seen in projection perpendicular to the axis 6 an arc of a circle centered on this axis, and its concave surface forms a groove 14 in which is engaged the plate 15 of the casing of the ammunition 3 during transfer .

Du fait du caractère déformable de la rampe 11, sa partie inférieure suit le mouvement de l'arme 2 de sorte qu'au cours de son transfert en arc de cercle, la munition 3 subit en outre un mouvement axial du fait que le plateau 15 de sa douille est maintenu dans la rainure de guidage 14.Due to the deformable nature of the ramp 11, its lower part follows the movement of the weapon 2 so that during its transfer in an arc, the munition 3 also undergoes an axial movement due to the fact that the plate 15 of its sleeve is held in the guide groove 14.

La munition 3 arrive par conséquent au niveau de l'arme 2 dans une position axiale précise déterminée par l'emplacement de la ferrure 13 sur l'arme 2.The ammunition 3 therefore arrives at the level of the weapon 2 in a precise axial position determined by the location of the fitting 13 on the weapon 2.

La rampe 11 est réalisée par un empilement d'éléments 16 coulissant les uns par rapport aux autres dans une direction parallèle à l'axe 6.The ramp 11 is produced by a stack of elements 16 sliding relative to each other in a direction parallel to the axis 6.

Un tel élément est représenté aux figures 5 à 8.Such an element is shown in Figures 5 to 8.

Chaque élément 16 a sensiblement une forme de coin dont les deux surfaces convergentes 17 et 18 forment les surfaces de contact avec les éléments adjacents. L'angle formé par ces surfaces 17 et 18 et le nombre d'éléments 16 est tel que l'empilement des éléments 16 forme l'arc de cercle souhaité de la rampe 11. Lorsque ces éléments sont empilés, les arêtes des dièdres formés par les surfaces 17 et 18 sont donc confondues avec l'axe 6.Each element 16 has substantially a wedge shape, the two converging surfaces 17 and 18 of which form the contact surfaces with the adjacent elements. The angle formed by these surfaces 17 and 18 and the number of elements 16 is such that the stacking of the elements 16 forms the desired arc of a circle of the ramp 11. When these elements are stacked, the edges of the dihedrons formed by surfaces 17 and 18 are therefore merged with axis 6.

Le coulissement des éléments 16 les uns par rapport aux autres et leur assemblage est réalisé à l'aide de nervures 19 qui, dans le cas présent, ont une section en T et sont formées sur la face 18 de l'élément, et d'une rainure 20 de forme correspondante formée dans la face 17.The elements 16 slide relative to each other and are assembled using ribs 19 which, in the present case, have a T section and are formed on the face 18 of the element, and a groove 20 of corresponding shape formed in the face 17.

Chaque nervure 19 est engagée dans la rainure 20 de l'élément adjacent à l'exception de l'élément supérieur dont la nervure est engagée dans une rainure de même forme de la ferrure 12 et de l'élément inférieur dont la rainure 20 reçoit une nervure de forme correspondante de la ferrure 13.Each rib 19 is engaged in the groove 20 of the adjacent element with the exception of the upper element whose rib is engaged in a groove of the same shape of the fitting 12 and the lower element the groove 20 of which receives a rib of corresponding shape from the fitting 13.

Chaque élément possède du côté de l'arête du dièdre précité deux prolongements latéraux 21 et 22 qui, lorsque les éléments 16 sont montés font par conséquent saillie en direction de l'axe 6, l'empilement de ces prolongements formant la rainure de guidage 14 dans laquelle est engagé le plateau 15 de la douille de la munition 3.Each element has on the side of the aforementioned dihedral edge two lateral extensions 21 and 22 which, when the elements 16 are mounted therefore project in the direction of the axis 6, the stack of these extensions forming the guide groove 14 in which is engaged the plate 15 of the socket of the ammunition 3.

La largeur des éléments 16 est telle que les prolongements 21 et 22 aient un écartement donnant à la nervure 14 une largeur suffisante pour éviter le coincement du plateau 14 dans les positions extrèmes représentées aux figures 3 et 4 de l'arme 2 par rapport au pourvoyeur 1.The width of the elements 16 is such that the extensions 21 and 22 have a spacing giving the rib 14 a width sufficient to avoid jamming of the plate 14 in the extreme positions shown in Figures 3 and 4 of the weapon 2 relative to the provider 1.

Dans le cas où le plateau 15 de la douille est insuffisant, le culot de la munition peut être engagé dans un chariot portant un tel plateau.In the case where the plate 15 of the socket is insufficient, the base of the ammunition can be engaged in a carriage carrying such a plate.

La forme hélicoïdale de la rampe est assurée par deux cordes à piano 23 engagées dans les perçages 24 sensiblement perpendiculaires aux faces 17 et 18 de l'élément 16. Les perçages 24 représentés en coupe sur les figures 7 et 8 comportent en leur centre une partie étroite 25, évasée de part et d'autre par des lamages 26. La partie étroite 24 permet le coulissement de la corde 23, les lamages 26 permettent les mouvements de torsion de la corde. La différence de diamètre entre la partie étroite 24 et la partie large 26 commande la torsion maximum et donc le pas de l'hélice.The helical shape of the ramp is provided by two piano strings 23 engaged in the holes 24 substantially perpendicular to the faces 17 and 18 of the element 16. The holes 24 shown in section in Figures 7 and 8 have in their center a part narrow 25, flared on both sides by counterbores 26. The narrow part 24 allows the sliding of the rope 23, the counterbores 26 allow the twisting movements of the rope. The difference in diameter between the narrow part 24 and the wide part 26 controls the maximum torsion and therefore the pitch of the propeller.

Les cordes à piano 23 ont une extrémité montée sur la ferrure 12 et une autre extrémité montée sur la ferrure 13. Lors des déformations de la rampe,la longueur de corde nécessaire pour tenir les éléments 16 liés entre eux varie. La longueur minimum est égale à un arc de cercle, la longueur maximum est égale à un arc de spirale cylindrique. Pour permettre cet allongement, la fixation sur les ferrures 12 et 13 de chacune des extrémités de la corde est montée coulissante. Le fait que l'on emploie une corde à piano,donc susceptible d'un certain allongement élastique, contribue au freinage propulsif des éléments 16 de la rampe lorsqu'on arrive en fin de course.The piano strings 23 have one end mounted on the fitting 12 and another end mounted on the fitting 13. During the deformations of the ramp, the length of rope necessary to hold the elements 16 linked together varies. The minimum length is equal to an arc, the maximum length is equal to a cylindrical spiral arc. To allow this extension, the attachment to the fittings 12 and 13 of each of the ends of the rope is slidably mounted. The fact that a piano string is used, therefore capable of a certain elastic elongation, contributes to the propulsive braking of the elements 16 of the ramp when one reaches the end of the race.

Lors du déplacement alternatif de l'arme 2 par rapport au pourvoyeur 1 d'une position extreme présentée à la figure 3 à l'autre position extrème représentée à la figure 4, la munition 3 est prise en charge au niveau de la ferrure 12 et est ensuite guidée jusqu'à l'arme où elle arrive dans une position précise déterminée par la position de la ferrure 13.During the alternating movement of the weapon 2 relative to the provider 1 from an extreme position presented in FIG. 3 to the other extreme position shown in FIG. 4, the ammunition 3 is supported at the level of the fitting 12 and is then guided to the weapon where it arrives in a precise position determined by the position of the fitting 13.

Diverses variantes et modifications peuvent bien entendu être apportées à la description qui précède sans sortir pour autant ni du cadre ni de l'esprit de l'invention.Various variants and modifications can of course be made to the above description without however departing from the scope or the spirit of the invention.

Claims (8)

1 - Dispositif d'alimentation en munitions d'une arme automatique (2) mobile en translation par rapport à un fourvoyeur fixe (1), comportant des moyens (5, 8) pour transférer la munition selon un arc de cercle entre le pourvoyeur et l'arme, parallelément à elle-même et perpendiculairement au mouvement de translation de l'arme, caractérisé par le fait qu'il comprend une rampe hélicoïdale (11) à pas variable de même axe (6) que l'arc de transfert de la munition, une extrémité étant solidaire au pourvoveur, la rampe possédant- des moyens de guidage (14) pour positionner la munition axialement au cours de son transfert.1 - Device for supplying ammunition to an automatic weapon (2) movable in translation relative to a stationary supplier (1), comprising means (5, 8) for transferring the ammunition in an arc between the supplier and the weapon, parallel to itself and perpendicular to the translational movement of the weapon, characterized in that it comprises a helical ramp (11) with variable pitch of the same axis (6) as the transfer arc of the ammunition, one end being integral with the provider, the ramp having- guide means (14) for positioning the ammunition axially during its transfer. 2 - Dispositif selon la revendication 1, caractérisé par le fait que les moyens de guidage comprennent une rainure (14) agencée pour coopérer avec le plateau de la douille de a munition.2 - Device according to claim 1, characterized in that the guide means comprise a groove (14) arranged to cooperate with the plate of the ammunition socket. 3 - Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé par le fait que la rampe est formée d'une pluralité d'éléments (16) agencés pour coulisser les uns par rapport aux autres parallèlement au mouvement de translation de l'arme.3 - Device according to any one of claims 1 and 2, characterized in that the ramp is formed of a plurality of elements (16) arranged to slide relative to each other parallel to the translational movement of the armed. 4 - Dispositif selon la revendication 3. caractérisé par le fait que chaque élément comporte au moins un perçage (24), un fil souple (23) traversant chacun des percages, le fil avant une extrémité montée sur le pourvoyeur et son autre extrémité montée sur l'arme.4 - Device according to claim 3. characterized in that each element comprises at least one bore (24), a flexible wire (23) passing through each of the holes, the wire before one end mounted on the provider and its other end mounted on tear. 5 - Dispositif selon l'une quelconque des revendications 3 et 4, caractérisé par le fait que chaque élément possède une nervure (19), agencée pour coopérer avec une rainure (20) d'un élément adjacent.5 - Device according to any one of claims 3 and 4, characterized in that each element has a rib (19), arranged to cooperate with a groove (20) of an adjacent element. 6 - Dispositif selon l'une quelconque des revendications 3 à 5, caractérisé par le fait que chaque élément possède une surface de contact (17, 18) avec chacun des éléments adjacents, les deux surfaces de contact d'un élément formant un dièdre dont l'arête est sensiblement confondue avec l'axe de l'arc de transfert de la munition.6 - Device according to any one of claims 3 to 5, characterized in that each element has a contact surface (17, 18) with each of the adjacent elements, the two contact surfaces of an element forming a dihedral including the edge is substantially coincident with the axis of the ammunition transfer arc. 7 - Dispositif selon la revendication 4, caractérisé en ce que le perçage (24) comporte une partie étroite (25) au centre et deux parties larges (26) à chacune de ses extrémités.7 - Device according to claim 4, characterized in that the bore (24) has a narrow part (25) in the center and two wide parts (26) at each of its ends. 8 - Dispositif selon la revendication 4, caractérisé en ce que le fil souple (23) est une corde à piano et en ce que les extrémités de la corde sont montées coulissantes sur le pourvoyeur et sur l'arme.8 - Device according to claim 4, characterized in that the flexible wire (23) is a piano cord and in that the ends of the cord are slidably mounted on the provider and on the weapon.
EP19900400692 1989-03-16 1990-03-15 Ammunition feeding device for an automatic firearm Expired - Lifetime EP0388301B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903440 1989-03-16
FR8903440A FR2644570A1 (en) 1989-03-16 1989-03-16 DEVICE FOR SUPPLYING AMMUNITION TO AN AUTOMATIC WEAPON

Publications (2)

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EP0388301A1 true EP0388301A1 (en) 1990-09-19
EP0388301B1 EP0388301B1 (en) 1994-01-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900400692 Expired - Lifetime EP0388301B1 (en) 1989-03-16 1990-03-15 Ammunition feeding device for an automatic firearm

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EP (1) EP0388301B1 (en)
DE (1) DE69005862D1 (en)
FR (1) FR2644570A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0531594A1 (en) * 1990-07-12 1993-03-17 GIAT Industries Device for feeding ammunition to an automatic weapon

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR885432A (en) * 1941-08-23 1943-09-14 Oerlikon Buehrle Ag Automatic firearm with movable mounting for recoil
US2351370A (en) * 1942-11-30 1944-06-13 Waldes Kohinoor Inc Chute
GB590783A (en) * 1944-06-13 1947-07-29 Vickers Armstrongs Ltd Improvements in or relating to flexible chutes for ammunition belts and for analogous purposes
GB604291A (en) * 1944-05-13 1948-07-01 Hughes Tool Co Improvements in or relating to flexible passage or chute
GB624358A (en) * 1945-12-10 1949-06-07 Bristol Aeroplane Co Ltd Improvements in or relating to ammunition chutes
US2473716A (en) * 1943-05-25 1949-06-21 Howard B Lewis Flexible ammunition chute
US2838154A (en) * 1956-07-26 1958-06-10 Armament Components Inc Flexible conveyer chute
GB2077889A (en) * 1980-06-14 1981-12-23 Dornier Gmbh A cartridge-firing cannon, for example for an aircraft

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR885432A (en) * 1941-08-23 1943-09-14 Oerlikon Buehrle Ag Automatic firearm with movable mounting for recoil
US2351370A (en) * 1942-11-30 1944-06-13 Waldes Kohinoor Inc Chute
US2473716A (en) * 1943-05-25 1949-06-21 Howard B Lewis Flexible ammunition chute
GB604291A (en) * 1944-05-13 1948-07-01 Hughes Tool Co Improvements in or relating to flexible passage or chute
GB590783A (en) * 1944-06-13 1947-07-29 Vickers Armstrongs Ltd Improvements in or relating to flexible chutes for ammunition belts and for analogous purposes
GB624358A (en) * 1945-12-10 1949-06-07 Bristol Aeroplane Co Ltd Improvements in or relating to ammunition chutes
US2838154A (en) * 1956-07-26 1958-06-10 Armament Components Inc Flexible conveyer chute
GB2077889A (en) * 1980-06-14 1981-12-23 Dornier Gmbh A cartridge-firing cannon, for example for an aircraft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0531594A1 (en) * 1990-07-12 1993-03-17 GIAT Industries Device for feeding ammunition to an automatic weapon

Also Published As

Publication number Publication date
EP0388301B1 (en) 1994-01-12
FR2644570A1 (en) 1990-09-21
FR2644570B1 (en) 1994-04-22
DE69005862D1 (en) 1994-02-24

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