EP3374720B1 - Device for feeding medium-calibre ammunition with a rotating plate - Google Patents

Device for feeding medium-calibre ammunition with a rotating plate Download PDF

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Publication number
EP3374720B1
EP3374720B1 EP16790540.5A EP16790540A EP3374720B1 EP 3374720 B1 EP3374720 B1 EP 3374720B1 EP 16790540 A EP16790540 A EP 16790540A EP 3374720 B1 EP3374720 B1 EP 3374720B1
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EP
European Patent Office
Prior art keywords
medium
ammunition
caliber ammunition
supply device
caliber
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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.)
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Application number
EP16790540.5A
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German (de)
French (fr)
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EP3374720A1 (en
Inventor
Anthony COLOMINE
Innokenty GRITSKEVITCH
Domenico FARINELLA
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.)
John Cockerill Defense SA
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CMI Defence SA
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Priority to PL16790540T priority Critical patent/PL3374720T3/en
Publication of EP3374720A1 publication Critical patent/EP3374720A1/en
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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
    • 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
    • F41A9/55—Fixed or movable guiding means, mounted on, or near, the cartridge chamber
    • 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
    • F41A9/79—Magazines for belted ammunition
    • 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
    • F41A9/82—Reloading or unloading of magazines
    • F41A9/86—Feeding belted ammunition into magazines

Definitions

  • the present invention relates to the technical field of storage and transport devices towed and guided ammunition medium gauge, in particular being inside a turret mounted on a shielded vehicle, as for example described in the document patent DE2448313C .
  • the invention could also be applied where appropriate to production lines in large series of bottles with conveying.
  • Racks, magazines, racks or medium-ammunition storage bays for armored vehicle turrets are known in which the storage is performed on a single or double turntable often located at the rear of the turret while the guide, the towing and delivery of the ammunition takes place between this (s) plateau (x) and the barrel located generally at the front of the turret, passing through various specific structures for guiding, towing and / or routing such as conveyors and ratchet boxes.
  • the passage of medium-caliber ammunition between the rack and its routing structures and the barrel can be done through hoses.
  • HDPE strips can be placed along the conveyance to reduce friction between the structure and the medium caliber ammunition. during the displacement of the latter, in other words reduce the risk of detachment of bands or chains of ammunition of medium caliber.
  • a ratchet box designating a device containing a ratchet wheel, whose curved teeth make it possible to better match the shape of medium-caliber ammunition and their link, facilitates the handling of medium-caliber ammunition until in the cannon, in addition to its role dedicated to towed and guided transport (see above).
  • the present invention aims to provide a device that reduces the friction occurring in the path of medium-caliber ammunition without using a driving force, for example electric, other than that proposed by the gun engine.
  • the invention also aims to optimize the space used inside the turret and to facilitate access to the compartments of the device for (re) loading and / or unloading.
  • the invention also aims to provide means for (re) loading and / or unloading medium caliber ammunition at the feeder (s) from the inside and / or outside of the turret.
  • the invention also aims to allow ease of use of medium-caliber ammunition rack during (re) loading and / or unloading operations.
  • the invention simultaneously aims to simplify the mechanism to prevent as much as possible the risk of failure and increase reliability.
  • the object of the invention is also to provide a device adapted to any type of medium-caliber ammunition (typically 15 to 50 mm) without any modification of its constituent elements.
  • a first aspect of the present invention relates to a device for supplying medium-caliber ammunition to a turret mounted on a shielded vehicle, comprising at least one rotating circular plate, capable of being placed behind said turret, for medium-sized ammunition positioning in web or warp, vertically and in a spiral path, followed by structural elements for guided and towed delivery of at least one medium caliber band or chain of ammunition, which include at least one conveyor and a ratchet box, characterized in that said guided and towed conveying structural elements successively comprise a first conveyor, a first ratchet box, a second conveyor and a second ratchet box, said rotating circular plate and said structural elements guided and towed transport being all covered by a sheet metal protection on their lateral faces ales and / or on an upper part or roof, said sheet metal protection having rotatable or pivotally mounted movable hatches, allowing partial or full and ergonomic (re) loading and / or unloading of the rotating circular plate in medium-caliber ammunition, either when
  • a second aspect of the present invention relates to a shielded vehicle turret comprising a medium-caliber ammunition supply device as described above, as well as a barrel and hoses for connecting said guided routing structural elements. and cannulated at one end of said structural elements located on the same side as the barrel within the turret, for example on the side of the commander of the armored vehicle.
  • the junction between the medium-caliber ammunition rack 1 and the barrel is made through hoses (see item 61, on Figures 7 and 8 ) connecting the second ratchet box 42 to the barrel.
  • the presence of two feeders 21, 22 in this embodiment defines the routing of two strips or parallel chains of medium-caliber ammunition 2 from the feeders to the barrel.
  • the (re) loading and / or unloading of the medium-caliber ammunition strips or chains in the feeders is done in a spiral path 29, each band or chain being hooked at one end to the feeder axis 25 by a device any known to those skilled in the art, such as a clip secured to the axis.
  • the medium-caliber ammunition rack may only one feeder, which defines the routing of a single band or ammunition chain between this single feeder and the barrel.
  • the device with two trays advantageously makes it possible to increase the capacity of (re) loading and / or unloading or to simultaneously use two different types of ammunition of different caliber but always on the same caliber because the barrel does not accept only one (eg 30 or 40mm).
  • the turntables can be made in the form of plates having orifices, such as slatted type trays, on the one hand to lighten the device and on the other hand to allow the evacuation of dust, dirt or any other object or debris that could trigger the accidental firing of ammunition, especially when the vehicle is in motion.
  • the lateral cylindrical walls of the feeders may have, in addition to a protective function, also a guiding function for medium-caliber ammunition arranged in the spirally wound strip or chain around the axis of the plate.
  • the trays may be mounted on annular base bases, for example but not necessarily, bolted to the floor of the turret and fixed thereto using hooks, or any other system fixing, to prevent inadvertent vertical movement of the plate, especially when the vehicle is moving.
  • the trays will be rotatably mounted about their vertical axis by means of bearings to reduce friction.
  • the rotating plates may have a retractable central axis for stacking them, for example to facilitate the transport of the trays in the turret or to allow to lower a retractable optics during transport.
  • Braking means may also be provided at the trays to control the inertia of medium caliber ammunition and prevent it from causing a rotation of the plate when the barrel stops working.
  • An essential element of the invention lies in the fact that this device allows and promotes a guided and towed transport medium caliber ammunition without other motorized contribution than that proposed by the gun engine in two strips or parallel chains 2 from the feeders ( 21, 22) to the barrel, parallel bands or chains placed on the commander's side. All arrangements made according to the invention for minimizing the friction of medium-caliber ammunition during their transport to the barrel contribute to make superfluous any means of traction additional traction provided by the engine of the gun.
  • both the circular magazines, the conveyors and the ratchet boxes are provided externally with protective plates, either laterally or at their upper part (roof).
  • the (re) loading and / or unloading of the medium-caliber ammunition can advantageously be effected by hatches provided in the feeder (s) and the conveyors, either from the inside from the outside of the turret, following the rotation or pivoting of certain opening walls provided at the (or) feeder (s), respectively of the conveyors, laterally and / or at the level of the roof thereof .
  • the first conveyor 31 has a possibility of opening at plate level, lateral 33 and upper 34.
  • the side plate 33 is pivotally mounted around the fixed part of the rack, thanks to a horizontal hinge and the conveyor roof plate 34 is pivotally mounted around the side plate 33 through another horizontal hinge.
  • the second conveyor 32 opens only from its upper part via a plate 35 pivotally mounted around a horizontal hinge.
  • traps or openings in feeders and conveyors are only illustrative, it being understood that other possible configurations fall within the scope of the invention.
  • the structures consisting of removable movable plates with hinges make it easy to open an opening for access to medium-caliber ammunition and for their (re) loading and / or unloading in the conveyors through the use of "clips" and locks 51, which allow rapid (un) locking ( Figures 5 and 6 ).
  • the various openings also allow easier access in case of maintenance to be performed and for any other parts replacement.
  • ratchet boxes 41, 42 respectively, they allow a guided and guided transport medium caliber ammunition along their journey, with change of direction, only through the rotation of an axis 43.
  • This axis 43 is provided with at least two hexagonal wheels 44 each side has a housing for accommodating a medium caliber ammunition. According to a preferred embodiment of the invention, this axis 43 is externally terminated so that it can be manually rotated, for example by means of a standard 14 mm socket wrench ( Figures 7 and 8 ).
  • a second advantage related to this axis 43 lies in the fact that it appears a reduction in friction between the bend described by the medium caliber ammunition and said ammunition through the addition of a ball bearing whose friction torque is close to zero.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Conveyance Elements (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Chain Conveyers (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Description

Objet de l'inventionObject of the invention

La présente invention se rapporte au domaine technique des dispositifs de stockage et d'acheminement tracté et guidé de munitions de moyen calibre, en particulier se trouvant à l'intérieur d'une tourelle montée sur un véhicule blindé, comme par exemple décrit dans le document brevet DE2448313 C .The present invention relates to the technical field of storage and transport devices towed and guided ammunition medium gauge, in particular being inside a turret mounted on a shielded vehicle, as for example described in the document patent DE2448313C .

L'invention pourrait également s'appliquer le cas échéant aux chaînes de production en grande série de bouteilles avec convoyage.The invention could also be applied where appropriate to production lines in large series of bottles with conveying.

Etat de la techniqueState of the art

On connaît des racks, magasins, râteliers ou baies de stockage à munitions de moyen calibre pour tourelles de véhicules blindés dans lesquels le stockage est réalisé sur un simple ou double plateau tournant souvent situé à l'arrière de la tourelle alors que le guidage, le tractage et l'acheminement des munitions s'opèrent entre ce(s) plateau(x) et le canon situé généralement à l'avant de la tourelle, en passant au travers de diverses structures spécifiques de guidage, de tractage et/ou d'acheminement tels que des convoyeurs et boîtes à rochet. Le passage des munitions de moyen calibre entre le rack et ses structures d'acheminement et le canon peut s'effectuer au travers de flexibles.Racks, magazines, racks or medium-ammunition storage bays for armored vehicle turrets are known in which the storage is performed on a single or double turntable often located at the rear of the turret while the guide, the towing and delivery of the ammunition takes place between this (s) plateau (x) and the barrel located generally at the front of the turret, passing through various specific structures for guiding, towing and / or routing such as conveyors and ratchet boxes. The passage of medium-caliber ammunition between the rack and its routing structures and the barrel can be done through hoses.

Il est cependant souhaitable de maximiser l'espace à l'intérieur de la tourelle et d'améliorer l'ergonomie générale de cette dernière, par exemple en :

  • minimisant la taille des structures relatives au stockage des munitions de moyen calibre via la mise en place d'un ou deux plateau(x) tournant(s), encore appelé(s) feeder(s), localisé(s) à l'arrière de la tourelle ;
  • réduisant les efforts de guidage, de tractage et/ou d'acheminement des munitions de moyen calibre lors de leur transfert du ou des feeder(s) vers le canon via un système entièrement mécanique par mise à disposition d'un ensemble d'éléments structurels spécifiques et consécutifs de guidage tels qu'un convoyeur, une boîte à rochet, ou les deux ;
  • facilitant le (re)chargement et/ou déchargement des munitions de moyen calibre tout au long du trajet de ces dernières lorsque le véhicule est à l'arrêt, voire éventuellement en mouvement.
However, it is desirable to maximize the space inside the turret and improve the overall ergonomics of the turret, for example by:
  • minimizing the size of storage structures for medium caliber ammunition by placing one or two turntable (s), also known as feeder (s) , located at the rear turret;
  • reducing the efforts of guiding, towing and / or transporting medium caliber ammunition when transferring the feeder (s) to the barrel via an entirely mechanical system by providing a set of structural elements specific and consecutive guiding devices such as a conveyor, a ratchet box, or both;
  • facilitating the (re) loading and / or unloading of medium-caliber ammunition along the path of the latter when the vehicle is stationary, or possibly moving.

Il peut être également souhaitable d'augmenter la sécurité des occupants de la tourelle. Ainsi, des bandes de polyéthylène haute densité (HDPE), telles qu'utilisées dans la plupart des systèmes de convoyage de bouteilles ou canettes, peuvent être placées tout le long du convoyage afin de réduire les frictions entre la structure et les munitions de moyen calibre lors du déplacement de ces dernières, autrement dit diminuer les risques de détachement des bandes ou chaînes de munitions de moyen calibre. De plus, on peut prévoir une rainure au centre du chemin de convoyage pour empêcher le dépôt de saletés telles que pierrailles, poussières, etc. susceptibles de mettre à feu les munitions. Enfin, l'utilisation d'une boîte à rochet, désignant un dispositif contenant une roue à rochet, dont les dents recourbées permettent de mieux épouser la forme des munitions de moyen calibre et de leur maillon, facilite la manipulation des munitions de moyen calibre jusqu'au canon, outre son rôle dédié à l'acheminement tracté et guidé (voir ci-dessus).It may also be desirable to increase the safety of the occupants of the turret. Thus, high density polyethylene (HDPE) strips, as used in most bottle or can conveyors, can be placed along the conveyance to reduce friction between the structure and the medium caliber ammunition. during the displacement of the latter, in other words reduce the risk of detachment of bands or chains of ammunition of medium caliber. In addition, there may be a groove in the center of the conveying path to prevent the deposition of dirt such as stones, dust, etc. likely to fire ammunition. Finally, the use of a ratchet box, designating a device containing a ratchet wheel, whose curved teeth make it possible to better match the shape of medium-caliber ammunition and their link, facilitates the handling of medium-caliber ammunition until in the cannon, in addition to its role dedicated to towed and guided transport (see above).

Actuellement, ces besoins sont satisfaits grâce à l'utilisation de différents types de rack à munitions de moyen calibre où ces dernières se présentent soit verticalement, soit horizontalement. Ceux-ci fonctionnent avec ou sans apport d'énergie électrique étant donné que le(s) feeder(s), fixe(s) ou tournant(s), est (sont) situé(s) soit directement à côté du canon, soit à l'arrière de la tourelle.Currently, these needs are met through the use of different types of medium-caliber ammunition racks where they are either vertically or horizontally. These operate with or without input of electrical energy since the feeder (s), fixed (s) or turn (s), is (are) located either directly next to the barrel, or at the rear of the turret.

Plus précisément, trois types de solutions existent dans l'état de l'art :

  • les racks à munitions avec deux feeders présentant des spécificités d'accrochage et d'enroulage procurant un chemin en forme de spirale pour des munitions disposées verticalement, idéalement sans friction entre elles, le tout étant contrôlé par un mécanisme basé sur un frein spécifique. Cette approche met en évidence un dispositif généralement situé très près du canon, n'ayant pas d'intermédiaire structurel hormis les flexibles précités, et selon lequel les deux feeders sont localisés de part et d'autre du canon ;
  • les racks à munitions mettant en évidence des munitions positionnées de façon verticale dans un chemin tracé en spirale ou en serpentin et tractées via un tapis roulant motorisé, depuis le(s) feeder(s) localisé(s) à l'arrière de la tourelle, jusqu'au canon. Cet acheminement s'effectue au travers de divers éléments structurels tels qu'une boîte à rochet, un convoyeur, etc., soit du même côté du canon, soit de part et d'autre de ce dernier ;
  • les racks à munitions dans lesquels les munitions sont entreposées de manière horizontale dans le rack même et disposées selon un chemin présentant des virages successifs. Chaque étage va amener les munitions à un flexible différent tel que la sélection se fera au niveau du canon. Dans cette configuration, les munitions de moyen calibre peuvent également être entraînées du magasin au canon grâce à une boîte à rochet.
More precisely, three types of solutions exist in the state of the art:
  • ammunition racks with two feeders having specific hooking and winding providing a spiral path for ammunition arranged vertically, ideally without friction between them, all controlled by a mechanism based on a specific brake. This approach highlights a device generally located very close to the barrel, having no structural intermediate except the aforementioned flexible, and wherein the two feeders are located on either side of the barrel;
  • ammunition racks featuring ammunition positioned vertically in a spiral or serpentine path and towed via a powered treadmill from the feeder (s) located at the rear of the turret , to the barrel. This routing takes place through various structural elements such as a ratchet box, a conveyor, etc., either on the same side of the barrel, or on both sides of the latter;
  • ammunition racks in which ammunition is stored horizontally in the rack itself and arranged along a path with successive turns. Each floor will bring the ammunition to a different hose such that the selection will be at the level of the barrel. In this configuration, medium caliber ammunition can also be driven from the gun magazine through a ratchet box.

Ces différents types de racks à munitions sont décrits notamment dans les documents suivants: EP0754926 , US2014096671 , WO2014035032 , CN201837306 , WO2011155971 , EP1749179 , US2012227300 , WO2013087053 , US2012117840 , CN101660886 , US2007107592 , US2006249131 , EP1612502 , US5905224 , US5561258 , DE3838758 , EP0290031 , US4601230 , EP0210713 , US4332097 , EP1589312 , EP0272399 , US2012/0024144 , EP0361050 , US4674392 , US20090120271 , DE4206644 , US8485083 .These different types of ammunition racks are described in particular in the following documents: EP0754926 , US2014096671 , WO2014035032 , CN201837306 , WO2011155971 , EP1749179 , US2012227300 , WO2013087053 , US2012117840 , CN101660886 , US2007107592 , US2006249131 , EP1612502 , US5905224 , US5561258 , DE3838758 , EP0290031 , US4601230 , EP0210713 , US4332097 , EP1589312 , EP0272399 , US2012 / 0024144 , EP0361050 , US4674392 , US20090120271 , DE4206644 , US8485083 .

La plupart de ces solutions de l'état de la technique nécessitent des efforts de tractage importants suite aux frictions généralement présentes entre la structure et les munitions de moyen calibre, rendant souvent nécessaire l'ajout d'un moteur pour assurer le tractage des munitions de moyen calibre vers le canon, et ce d'autant que les magasins se trouvent éloignés du canon et/ou produisent un encombrement important au sein de la tourelle, ce qui est susceptible de réduire la capacité de stockage du (ou des) magasin(s). Enfin, la complexité mécanique de ces dispositifs augmente le temps de fabrication et le coût de production de ceux-ci.Most of these state-of-the-art solutions require considerable towing efforts due to the friction generally present between the structure and the medium-caliber ammunition, often making it necessary to add an engine to ensure the towing of the ammunition. medium caliber to the barrel, and especially since the stores are located far from the barrel and / or produce a large footprint within the turret, which is likely to reduce the storage capacity of the (or) store (s) ). Finally, the mechanical complexity of these devices increases the manufacturing time and the production cost thereof.

Buts de l'inventionGoals of the invention

La présente invention vise à fournir un dispositif qui permet de diminuer les frictions se produisant sur le trajet des munitions de moyen calibre sans faire appel à une force motrice, par exemple électrique, autre que celle proposée par le moteur du canon.The present invention aims to provide a device that reduces the friction occurring in the path of medium-caliber ammunition without using a driving force, for example electric, other than that proposed by the gun engine.

L'invention a également pour but d'optimiser l'espace utilisé à l'intérieur de la tourelle et de faciliter les accès aux compartiments du dispositif pour le (re)chargement et/ou déchargement.The invention also aims to optimize the space used inside the turret and to facilitate access to the compartments of the device for (re) loading and / or unloading.

L'invention a encore pour but de prévoir des moyens de (re)chargement et/ou déchargement des munitions de moyen calibre au niveau du ou des feeder(s) par l'intérieur et/ou par l'extérieur de la tourelle.The invention also aims to provide means for (re) loading and / or unloading medium caliber ammunition at the feeder (s) from the inside and / or outside of the turret.

L'invention a aussi pour but de permettre une facilité d'utilisation du rack à munitions de moyen calibre durant les opérations de (re)chargement et/ou déchargement.The invention also aims to allow ease of use of medium-caliber ammunition rack during (re) loading and / or unloading operations.

L'invention a parallèlement pour but de simplifier le mécanisme en vue d'en prévenir le plus possible les risques de défaillance et d'en augmenter la fiabilité.The invention simultaneously aims to simplify the mechanism to prevent as much as possible the risk of failure and increase reliability.

L'invention a encore pour but de fournir un dispositif adapté à tout type de munitions de moyen calibre (typiquement de 15 à 50 mm) sans aucune modification de ses éléments constitutifs.The object of the invention is also to provide a device adapted to any type of medium-caliber ammunition (typically 15 to 50 mm) without any modification of its constituent elements.

Principaux éléments caractéristiques de l'inventionMain characteristic elements of the invention

Un premier aspect de la présente invention se rapporte à un dispositif d'alimentation en munitions de moyen calibre à destination d'une tourelle montée sur un véhicule blindé, comprenant au moins un plateau circulaire tournant, apte à être placé à l'arrière de ladite tourelle, pour un positionnement de munitions de moyen calibre en bande ou chaîne, verticalement et selon un chemin en spirale, suivi par des éléments structurels d'acheminement guidé et tracté d'au moins une bande ou chaîne de munitions de moyen calibre, qui comprennent au moins un convoyeur et une boîte à rochet, caractérisé en ce que lesdits éléments structurels d'acheminement guidé et tracté comprennent successivement un premier convoyeur, une première boîte à rochet, un second convoyeur et une seconde boîte à rochet, ledit plateau circulaire tournant et lesdits éléments structurels d'acheminement guidé et tracté étant tous recouverts par une protection en tôle sur leurs faces latérales et/ou sur une partie supérieure ou toit, ladite protection en tôle présentant des trappes mobiles montées rotatives ou pivotantes, permettant un (re)chargement et/ou déchargement partiel ou intégral et ergonomique du plateau circulaire tournant en munitions de moyen calibre, soit à l'arrêt, soit durant le déplacement du véhicule, depuis l'intérieur et/ou l'extérieur de la tourelle et un accès aux munitions de moyen calibre ou un (re)chargement et/ou déchargement de celles-ci dans les convoyeurs.A first aspect of the present invention relates to a device for supplying medium-caliber ammunition to a turret mounted on a shielded vehicle, comprising at least one rotating circular plate, capable of being placed behind said turret, for medium-sized ammunition positioning in web or warp, vertically and in a spiral path, followed by structural elements for guided and towed delivery of at least one medium caliber band or chain of ammunition, which include at least one conveyor and a ratchet box, characterized in that said guided and towed conveying structural elements successively comprise a first conveyor, a first ratchet box, a second conveyor and a second ratchet box, said rotating circular plate and said structural elements guided and towed transport being all covered by a sheet metal protection on their lateral faces ales and / or on an upper part or roof, said sheet metal protection having rotatable or pivotally mounted movable hatches, allowing partial or full and ergonomic (re) loading and / or unloading of the rotating circular plate in medium-caliber ammunition, either when stationary, either during the movement of the vehicle, from inside and / or outside the turret and access to medium-caliber ammunition or (re) loading and / or unloading of these in the conveyors .

Selon des formes d'exécution préférées, le dispositif d'alimentation en munitions de moyen calibre comporte en outre au moins une des caractéristiques suivantes, ou encore une combinaison appropriée de plusieurs de celles-ci :

  • les deux boîtes à rochet présentent chacune un axe apte à être mis en rotation manuellement pour permettre un avancement partiel de la bande ou chaîne de munitions de moyen calibre vers le canon par l'extérieur du dispositif ;
  • ledit axe apte à être mis en rotation manuellement présente un usinage extérieur le rendant apte à être mis en rotation par une clé à douille standard ;
  • le dispositif comprend au moins deux plateaux circulaires tournants, le cas échéant de tailles différentes, associé à l'acheminement guidé et tracté de bandes ou chaînes correspondantes de munitions de moyen calibre ;
  • les trappes mobiles de la protection en tôle, montées rotatives, comprennent au moins deux secteurs circulaires glissant l'un par rapport à l'autre au niveau du toit du plateau circulaire tournant et actionnables au moyen de petites poignées ;
  • les trappes mobiles de la protection en tôle, montées pivotantes, comprennent des plaques en tôles montées sur charnières déverrouillables par l'ouverture de clips ou verrous ;
  • la protection du plateau circulaire tournant comprend au moins une trappe mobile en tôle montée rotative et une trappe mobile montée pivotante ;
  • la protection des éléments structurels d'acheminement guidé et tracté comprend au moins une trappe mobile en tôle montée pivotante ;
  • le dispositif comprend un système d'attache mécanique liant la dernière munition de moyen calibre à l'axe central du plateau tournant, lesdites munitions étant stockées sous forme d'un chemin en spirale au niveau du (ou des) plateau(x) tournant(s) ;
  • les deux convoyeurs présentent une fenêtre ouvrante de chargement favorisant le (re)chargement et/ou déchargement de bandes ou chaînes courtes et l'accroche de munitions de moyen calibre lorsque respectivement au moins un plateau tournant est vide et/ou lorsque le second convoyeur le nécessite ;
  • le dispositif comprend au moins un capteur de fin de bande ou chaîne mécanique pour chaque chemin de bande ou chaîne de munitions afin de détecter le nombre de munitions de moyen calibre restantes dans le dispositif ;
  • les éléments structurels d'acheminement guidé et tracté sont conçus pour le passage d'un type de munition à un autre, sans aucune modification ou contrainte géométrique et technique ;
  • chaque plateau tournant présente un axe central escamotable permettant un empilement sur un plateau tournant analogue ;
  • le(s) plateau(x) tournant(s) présente(nt) des systèmes d'ouverture permettant un (re)chargement et/ou déchargement simultané depuis l'intérieur et l'extérieur de la tourelle ;
  • une seule clé à douille commune est nécessaire et suffisante pour manipuler et acheminer les munitions de moyen calibre tout au long dudit dispositif
According to preferred embodiments, the medium-caliber ammunition feed device further comprises at least one of the following features, or an appropriate combination of several thereof:
  • the two ratchet boxes each have an axis capable of being rotated manually to allow partial advancement of the medium-caliber band or ammunition chain to the barrel from outside the device;
  • said manually rotatable shaft has an outer machining making it rotatable by a standard socket wrench;
  • the device comprises at least two rotating circular plates, possibly of different sizes, associated with the guided and towed routing of bands or corresponding chains of medium caliber ammunition;
  • the movable covers of the sheet metal guard, rotatably mounted, comprise at least two circular sectors sliding with respect to one another at the level of the roof of the rotating circular plate and actuable by means of small handles;
  • the movable covers of the sheet metal guard, pivotally mounted, comprise plate plates mounted on hinges that can be unlocked by the opening of clips or bolts;
  • the protection of the rotating circular plate comprises at least one mobile hatch rotatably mounted sheet and a movable door pivotally mounted;
  • the protection of the structural elements for guided and towed routing comprises at least one movable flap mounted sheet metal;
  • the device comprises a mechanical fastening system linking the last medium caliber ammunition to the central axis of the turntable, said ammunition being stored in the form of a spiral path at the rotating plate (s) ( s);
  • the two conveyors have an opening loading window promoting the (re) loading and / or unloading of short strips or chains and the catching of medium-caliber ammunition when respectively at least one turntable is empty and / or when the second conveyor the need ;
  • the device comprises at least one end-of-band sensor or mechanical chain for each tape path or ammunition chain to detect the number of remaining medium-caliber ammunition in the device;
  • structural elements for guided and towed routing are designed for passage from one type of ammunition to another without any geometric or technical modification or constraint;
  • each turntable has a central retractable axis for stacking on a similar turntable;
  • the turntable (s) present (s) opening systems allowing simultaneous (re) loading and / or unloading from inside and outside the turret;
  • only one common socket wrench is required and sufficient to handle and route medium caliber ammunition throughout the device

Un second aspect de la présente invention se rapporte à une tourelle de véhicule blindé comprenant un dispositif d'alimentation en munitions de moyen calibre comme décrit ci-dessus, ainsi qu'un canon et des flexibles permettant de relier lesdits éléments structurels d'acheminement guidé et tracté au canon à une extrémité desdits éléments structurels localisée du même côté que le canon au sein de la tourelle, par exemple du côté du commandant du véhicule blindé.A second aspect of the present invention relates to a shielded vehicle turret comprising a medium-caliber ammunition supply device as described above, as well as a barrel and hoses for connecting said guided routing structural elements. and cannulated at one end of said structural elements located on the same side as the barrel within the turret, for example on the side of the commander of the armored vehicle.

Brève description des FiguresBrief description of the Figures

  • La Figure 1 représente une vue générale en perspective d'une forme d'exécution pour un dispositif d'alimentation en munitions selon la présente invention.The Figure 1 is a general perspective view of an embodiment for an ammunition supply device according to the present invention.
  • La Figure 2 représente une vue générale du dessous du dispositif de la Figure 1.The Figure 2 represents a general view of the bottom of the device of the Figure 1 .
  • La Figure 3 représente une autre vue générale en perspective du dispositif de la Figure 1.The Figure 3 represents another general perspective view of the device of the Figure 1 .
  • La Figure 4 représente une vue de détail du dessus des deux plateaux tournants alimentés avec des bandes ou chaînes de munitions disposées en spirale.The Figure 4 is a detail view of the top of the two turntables fed with bands or ammunition chains arranged in a spiral.
  • La Figure 5 montre une vue de détail des ouvertures latérales et/ou en toit praticables sur les plateaux tournants et le premier convoyeur.The Figure 5 shows a detail view of the side openings and / or roof passable on the turntables and the first conveyor.
  • La Figure 6 montre une vue de détail de la fenêtre de chargement disposée au niveau du second convoyeur dans laquelle il est possible de détacher et/ou rattacher une bande ou chaîne de munitions de moyen calibre.The Figure 6 shows a detail view of the loading window disposed at the second conveyor in which it is possible to detach and / or attach a strip or ammunition chain of medium caliber.
  • Les Figures 7 et 8 montre une vue de détail d'une boîte à rochet utilisée selon la présente invention.The Figures 7 and 8 shows a detail view of a ratchet box used according to the present invention.
Description de formes d'exécution préférées de l'inventionDescription of preferred embodiments of the invention

Le dispositif de rack à munitions de moyen calibre 1 selon une forme d'exécution préférée de la présente invention, représentée selon une vue générale sur les Figures 1 à 3, est un système composé :

  • d'un ou de deux plateau(x) circulaire(s) tournant(s) ou feeder(s) 21, 22 (et en l'occurrence de deux plateaux sur ces figures), le cas échéant de tailles différentes, placé(s) à l'arrière de la tourelle (l'avant de la tourelle est le côté où se trouve le canon),
  • d'un premier convoyeur 31 et d'une première boîte à rochet 41 situés directement à la sortie du ou des feeder(s) et
  • d'un second convoyeur 32 et d'une seconde boîte à rochet 42 localisés tous deux du même côté dans la tourelle, par exemple du côté du commandant (la position du tireur étant à l'opposé).
The medium-caliber ammunition rack device 1 according to a preferred embodiment of the present invention, shown in a general view of the Figures 1 to 3 , is a compound system:
  • of one or two circular plates (s) turning (s) or feeder (s) 21, 22 (and in this case of two trays in these figures), possibly of different sizes, placed (s) ) at the rear of the turret (the front of the turret is the side where the gun is located),
  • a first conveyor 31 and a first ratchet box 41 located directly at the exit of the feeder (s) and
  • a second conveyor 32 and a second ratchet 42 both located on the same side in the turret, for example on the side of the commander (the position of the shooter being the opposite).

La jonction entre le rack à munitions de moyen calibre 1 et le canon s'opère au travers de flexibles (voir repère 61, sur les Figures 7 et 8) reliant la seconde boîte à rochet 42 au canon. Comme représenté sur la Figure 4, la présence de deux feeders 21, 22 dans cette forme d'exécution définit l'acheminement de deux bandes ou chaînes parallèles de munitions de moyen calibre 2 depuis les feeders jusqu'au canon. Le (re)chargement et/ou déchargement des bandes ou chaînes de munitions de moyen calibre dans les feeders se fait selon un chemin en spirale 29, chaque bande ou chaîne étant accrochée à une extrémité à l'axe 25 du feeder grâce à un dispositif quelconque, connu de l'homme de métier, tel qu'un clip solidaire de l'axe. Selon une modalité d'exécution alternative, le rack à munitions de moyen calibre peut ne présenter qu'un seul feeder, ce qui définit l'acheminement d'une seule bande ou chaîne de munitions entre ce feeder unique et le canon. Toutefois, le dispositif à deux plateaux permet avantageusement d'augmenter la capacité de (re)chargement et/ou déchargement ou encore d'utiliser simultanément deux types de munitions de moyen calibre différents mais toujours sur le même calibre car le canon n'en accepte qu'un seul (par ex. 30 ou 40mm).The junction between the medium-caliber ammunition rack 1 and the barrel is made through hoses (see item 61, on Figures 7 and 8 ) connecting the second ratchet box 42 to the barrel. As shown on the Figure 4 , the presence of two feeders 21, 22 in this embodiment defines the routing of two strips or parallel chains of medium-caliber ammunition 2 from the feeders to the barrel. The (re) loading and / or unloading of the medium-caliber ammunition strips or chains in the feeders is done in a spiral path 29, each band or chain being hooked at one end to the feeder axis 25 by a device any known to those skilled in the art, such as a clip secured to the axis. According to an alternative embodiment, the medium-caliber ammunition rack may only one feeder, which defines the routing of a single band or ammunition chain between this single feeder and the barrel. However, the device with two trays advantageously makes it possible to increase the capacity of (re) loading and / or unloading or to simultaneously use two different types of ammunition of different caliber but always on the same caliber because the barrel does not accept only one (eg 30 or 40mm).

Selon une forme d'exécution, les plateaux tournants pourront être réalisés sous forme de plaques présentant des orifices, telles que des plateaux de type caillebotis, d'une part pour alléger le dispositif et d'autre part pour permettre l'évacuation de poussières, saletés ou tout autre objet ou débris pouvant déclencher la mise à feu accidentelle des munitions, surtout lorsque le véhicule est en mouvement. De plus les parois cylindriques latérales des feeders peuvent avoir, outre une fonction de protection, également une fonction de guidage des munitions de moyen calibre disposées selon la bande ou chaîne enroulée en spirale autour de l'axe du plateau.According to one embodiment, the turntables can be made in the form of plates having orifices, such as slatted type trays, on the one hand to lighten the device and on the other hand to allow the evacuation of dust, dirt or any other object or debris that could trigger the accidental firing of ammunition, especially when the vehicle is in motion. In addition, the lateral cylindrical walls of the feeders may have, in addition to a protective function, also a guiding function for medium-caliber ammunition arranged in the spirally wound strip or chain around the axis of the plate.

Selon une autre forme d'exécution, les plateaux pourront être montés sur des socles de base annulaires, par exemple mais pas nécessairement, boulonnés sur le plancher de la tourelle et fixés à ceux-ci à l'aide de crochets, ou tout autre système de fixation, pour éviter tout mouvement vertical intempestif du plateau, surtout lorsque le véhicule est en mouvement.According to another embodiment, the trays may be mounted on annular base bases, for example but not necessarily, bolted to the floor of the turret and fixed thereto using hooks, or any other system fixing, to prevent inadvertent vertical movement of the plate, especially when the vehicle is moving.

Selon une autre forme d'exécution, les plateaux seront montés rotatifs autour de leur axe vertical par l'intermédiaire de roulements permettant de réduire la friction.In another embodiment, the trays will be rotatably mounted about their vertical axis by means of bearings to reduce friction.

Selon une autre forme d'exécution, les plateaux tournants peuvent présenter un axe central escamotable permettant un empilement de ces derniers, par exemple pour faciliter le transport des plateaux dans la tourelle ou pour permettre de redescendre une optique rétractable lors du transport.According to another embodiment, the rotating plates may have a retractable central axis for stacking them, for example to facilitate the transport of the trays in the turret or to allow to lower a retractable optics during transport.

Des moyens de freinage peuvent encore être prévus au niveau des plateaux en vue de contrôler l'inertie des munitions de moyen calibre et d'éviter que celle-ci n'entraîne une rotation du plateau lorsque le canon s'arrête de fonctionner.Braking means may also be provided at the trays to control the inertia of medium caliber ammunition and prevent it from causing a rotation of the plate when the barrel stops working.

Avantageusement, les frictions tout au long du trajet des munitions de moyen calibre sont fortement réduites suite à l'utilisation de bandes HDPE (non représenté).Advantageously, the friction along the path of medium-caliber ammunition is greatly reduced following the use of HDPE strips (not shown).

Un élément essentiel de l'invention réside dans le fait que ce dispositif permet et favorise un acheminement guidé et tracté des munitions de moyen calibre sans autre apport motorisé que celui proposé par le moteur du canon selon deux bandes ou chaînes parallèles 2 depuis les feeders (21, 22) jusqu'au canon, bandes ou chaînes parallèles placées du côté du commandant. Toutes les dispositions prises selon l'invention pour réduire au maximum la friction des munitions de moyen calibre lors de leur acheminement vers le canon contribuent à rendre superflu tout moyen de traction additionnel à la traction fournie par le moteur du canon.An essential element of the invention lies in the fact that this device allows and promotes a guided and towed transport medium caliber ammunition without other motorized contribution than that proposed by the gun engine in two strips or parallel chains 2 from the feeders ( 21, 22) to the barrel, parallel bands or chains placed on the commander's side. All arrangements made according to the invention for minimizing the friction of medium-caliber ammunition during their transport to the barrel contribute to make superfluous any means of traction additional traction provided by the engine of the gun.

Par ailleurs, pour des raisons qui apparaissent clairement dans la suite de l'exposé, tant les magasins circulaires que les convoyeurs et les boîtes à rochet sont pourvus extérieurement de tôles protectrices, soit latéralement, soit au niveau de leur partie supérieure (toit).Moreover, for reasons which appear clearly in the remainder of the presentation, both the circular magazines, the conveyors and the ratchet boxes are provided externally with protective plates, either laterally or at their upper part (roof).

Selon des modalités préférées de l'invention, le (re)chargement et/ou déchargement des munitions de moyen calibre peut s'opérer avantageusement par des trappes prévues dans le(s) feeder(s) et les convoyeurs, soit depuis l'intérieur, soit depuis l'extérieur de la tourelle, suite à la rotation ou au pivotement de certaines parois ouvrantes prévues au niveau du (ou des) feeder(s), respectivement des convoyeurs, latéralement et/ou au niveau du toit de ceux-ci.According to preferred embodiments of the invention, the (re) loading and / or unloading of the medium-caliber ammunition can advantageously be effected by hatches provided in the feeder (s) and the conveyors, either from the inside from the outside of the turret, following the rotation or pivoting of certain opening walls provided at the (or) feeder (s), respectively of the conveyors, laterally and / or at the level of the roof thereof .

D'une part, la paroi ouvrante 23, 24 au niveau du toit d'un (ou des deux) plateau(x) tournant(s) 21, 22 peut être conçue de sorte qu'une rotation se réalise selon un mouvement horlogique de cette paroi de toit autour de l'axe central du feeder 25 au moyen de deux petites poignées 26, 27 situées sur le toit de chaque feeder, permettant de réaliser cette rotation manuellement. Dans l'exemple donné ici, l'un des feeders 21 est également pourvu, outre l'ouverture de toit, d'une trappe latérale 28 montée pivotante autour d'une charnière verticale. Grâce à ces trappes, les (re)chargement et/ou déchargement intérieur et/ou extérieur est (sont) possible(s) et peut (peuvent) même être effectué(s) simultanément (Figure 5). En effet, lorsque les deux ouvertures sont accessibles simultanément, il suffit de disposer de deux personnes, l'une en dehors et l'autre à l'intérieur de la tourelle, pour :

  1. i) (re)charger et/ou décharger les munitions de moyen calibre (par l'individu situé dans et/ou hors de la tourelle) mais également
  2. ii) acheminer les munitions de moyen calibre jusqu'au canon (par l'individu se tenant dans la tourelle).
On the one hand, the opening wall 23, 24 at the level of the roof of one or both turn plates 21, 22 can be designed so that a rotation is made according to a clockwise movement of this roof wall around the central axis of the feeder 25 by means of two small handles 26, 27 located on the roof of each feeder, to achieve this rotation manually. In the example given here, one of the feeders 21 is also provided, in addition to the roof opening, a side hatch 28 pivotally mounted around a vertical hinge. Thanks to these hatches, the (re) loading and / or unloading inside and / or outside is (are) possible (s) and can (can) even be carried out (s) simultaneously ( Figure 5 ). Indeed, when the two openings are accessible simultaneously, it is sufficient to have two people, one outside and the other inside the turret, for:
  1. i) (re) loading and / or unloading medium caliber ammunition (by the individual located in and / or out of the turret) but also
  2. ii) Carry medium-caliber ammunition to the gun (by the individual standing in the turret).

D'autre part, dans l'exemple présenté ici, en ce qui concerne les deux convoyeurs, ceux-ci sont conçus de sorte que le (re)chargement et/ou déchargement ne peut (peuvent) s'effectuer uniquement que depuis l'intérieur de la tourelle (Figures 5 et 6). Selon la modalité d'exécution représentée sur la Figure 5, le premier convoyeur 31 présente une possibilité d'ouverture au niveau de plaques, latérale 33 et supérieure 34. La plaque latérale 33 est montée pivotante autour de la partie fixe du rack, grâce à une charnière horizontale et la plaque de toit de convoyeur 34 est montée pivotante autour de la plaque latérale 33 grâce à une autre charnière horizontale. Ainsi, lors de l'ouverture de la trappe correspondante, la plaque de toit 34 peut se replier sur la plaque latérale 33, avec très peu d'encombrement. Par ailleurs (Figure 6), le second convoyeur 32 s'ouvre uniquement depuis sa partie supérieure via une plaque 35 montée pivotante autour d'une charnière horizontale.On the other hand, in the example presented here, with regard to the two conveyors, these are designed so that the (re) loading and / or unloading can (can) be carried out only only from the inside the turret ( Figures 5 and 6 ). According to the execution modality represented on the Figure 5 , the first conveyor 31 has a possibility of opening at plate level, lateral 33 and upper 34. The side plate 33 is pivotally mounted around the fixed part of the rack, thanks to a horizontal hinge and the conveyor roof plate 34 is pivotally mounted around the side plate 33 through another horizontal hinge. Thus, when opening the corresponding hatch, the roof plate 34 can fold on the side plate 33, with very little space. Otherwise ( Figure 6 ), the second conveyor 32 opens only from its upper part via a plate 35 pivotally mounted around a horizontal hinge.

Les exemples montrés ici en guise de trappes ou d'ouvertures dans les feeders et dans les convoyeurs sont uniquement donnés à titre d'illustration, étant bien entendu que d'autres configurations possibles entrent dans le champ d'application de l'invention. Les structures constituées de plaques mobiles amovibles munies de charnières permettent de pratiquer aisément une ouverture pour l'accès aux munitions de moyen calibre et pour leur (re)chargement et/ou déchargement dans les convoyeurs grâce à l'utilisation de « clips » et verrous 51, qui permettent un (dé)verrouillage rapide (Figures 5 et 6). Les différentes ouvertures permettent également un accès plus aisé en cas de maintenance à réaliser et pour tout autre remplacement de pièces.The examples shown here as traps or openings in feeders and conveyors are only illustrative, it being understood that other possible configurations fall within the scope of the invention. The structures consisting of removable movable plates with hinges make it easy to open an opening for access to medium-caliber ammunition and for their (re) loading and / or unloading in the conveyors through the use of "clips" and locks 51, which allow rapid (un) locking ( Figures 5 and 6 ). The various openings also allow easier access in case of maintenance to be performed and for any other parts replacement.

Ces caractéristiques liées au (re)chargement et/ou déchargement de munitions de moyen calibre favorisent un accroissement de la sécurité à l'intérieur de la tourelle étant donné que l'encombrement à l'intérieur de celle-ci a été drastiquement réduit.These characteristics related to the (re) loading and / or unloading of medium-caliber ammunition favor an increase in the safety inside the turret since the space inside it has been drastically reduced.

Pour ce qui concerne les boîtes à rochet 41, 42 respectives, elles permettent un acheminement tracté et guidé des munitions de moyen calibre tout au long de leur parcours, avec changement de direction, uniquement grâce à la rotation d'un axe 43. Cet axe 43 est muni d'au moins deux roues hexagonales 44 dont chaque côté présente un logement permettant d'accueillir une munition de moyen calibre. Selon une modalité préférée de l'invention, cet axe 43 est terminé extérieurement pour pouvoir être mis en rotation manuellement, par exemple au moyen d'une clé à douille standard de 14 mm (Figures 7 et 8). Ainsi, on peut faire défiler/convoyer des bandes ou chaînes de munitions courtes de moyen calibre (re)chargées dans le(s) feeder(s) ou dans les convoyeurs autour de l'axe des boîtes à rochet de manière à les guider, les tracter partiellement sur le chemin vers le canon et les raccrocher éventuellement aux bandes ou chaînes se trouvant toujours dans le rack à munitions (entre le(s) feeder(s) et le canon, en cas de rechargement). Cette manipulation favorise une amélioration de l'ergonomie générale de la tourelle. Un second avantage lié à cet axe 43 réside dans le fait qu'il apparaît une réduction des frottements entre le virage décrit par les munitions de moyen calibre et lesdites munitions grâce à l'ajout d'un roulement à billes dont le couple de frottement est quasi nul.With regard to the ratchet boxes 41, 42 respectively, they allow a guided and guided transport medium caliber ammunition along their journey, with change of direction, only through the rotation of an axis 43. This axis 43 is provided with at least two hexagonal wheels 44 each side has a housing for accommodating a medium caliber ammunition. According to a preferred embodiment of the invention, this axis 43 is externally terminated so that it can be manually rotated, for example by means of a standard 14 mm socket wrench ( Figures 7 and 8 ). Thus, it is possible to run / convey strips or chains of medium caliber short ammunition (re) loaded in the feeder (s) or in the conveyors around the axis of the ratchet boxes so as to guide them, pull them partially on the way to the barrel and possibly hang them on the bands or chains still in the ammunition rack (between the feeder (s) and the barrel, in case of reloading). This manipulation promotes an improvement of the general ergonomics of the turret. A second advantage related to this axis 43 lies in the fact that it appears a reduction in friction between the bend described by the medium caliber ammunition and said ammunition through the addition of a ball bearing whose friction torque is close to zero.

La présente invention présente les avantages suivants :

  • aucun besoin en puissance extérieure motorisée, ce qui augmente la fiabilité du dispositif, le moteur du canon se suffisant à lui-même ;
  • un dispositif plus léger que ceux de l'état de la technique. Ceci permet d'envisager la possibilité de sortir tout ou une partie du rack à munitions de moyen calibre de la tourelle et le remplir au moins partiellement à l'extérieur de celle-ci, avant de le replacer et le fixer à nouveau à l'intérieur de la tourelle ;
  • un dispositif pouvant être entièrement fabriqué en un métal léger comme l'aluminium, ce qui implique un gain de poids ;
  • un système compact localisé du même côté au sein de la tourelle, autrement dit présentant un encombrement fortement réduit ;
  • une facilité de chargement soit depuis l'intérieur, soit depuis l'extérieur de la tourelle via une mobilité pratique au niveau de tôles constitutives des éléments structurels du dispositif par exemple via des petites poignées (notamment au niveau du ou des feeder(s)) et/ou des « clips » (sur les convoyeurs) ;
  • une diminution des frictions avec les bandes en HDPE sur la quasi-totalité du trajet ;
  • une adaptabilité des différents types de munitions sans changer les éléments constitutifs du dispositif, grâce au présent développement d'un guidage réalisé exclusivement sur douille sans toucher à l'ogive de la munition. On notera à cet égard que, pour les calibres 30 et 40 mm par exemple, la forme et le diamètre de la douille sont identiques.
The present invention has the following advantages:
  • no need for external motorized power, which increases the reliability of the device, the engine of the gun is sufficient to itself;
  • a device lighter than those of the state of the art. This makes it possible to envisage the possibility of taking out all or part of the medium-caliber ammunition rack from the turret and filling it at least partially on the outside thereof, before replacing it and fixing it again to the inside the turret;
  • a device that can be made entirely of a light metal such as aluminum, which implies a weight saving;
  • a compact system located on the same side within the turret, in other words having a greatly reduced bulk;
  • a facility of loading either from inside or from outside the turret via a practical mobility at the level of plates constituting the structural elements of the device for example via small handles (especially at the feeder (s)) and / or "clips" (on the conveyors);
  • reduced friction with HDPE tapes over most of the journey;
  • adaptability of the different types of ammunition without changing the components of the device, thanks to the development of a guide made exclusively on the sleeve without touching the warhead of the ammunition. It should be noted in this respect that for the sizes 30 and 40 mm, for example, the shape and the diameter of the socket are identical.

Ces avantages compensent largement quelques inconvénients tels que des vibrations résiduelles au niveau des tôles constitutives des éléments structurels, le bruit de munitions qui « sautent » pendant le convoyage ou l'utilisation de flexibles.These advantages largely compensate for some disadvantages such as residual vibrations at the level of the constituent plates of the structural elements, the noise of munitions that "jump" during conveying or the use of hoses.

Liste des symboles de référenceList of reference symbols

11
dispositif d'alimentation en munitionsammunition supply device
22
munitionsammunition
2121
premier feederfirst feeder
2222
second feedersecond feeder
2323
trappe de toitroof hatch
2424
trappe de toitroof hatch
2525
axe central du feedercentral axis of the feeder
2626
poignéehandle
2727
poignéehandle
2828
trappe latéraleside hatch
2929
chemin en spiralespiral path
3131
premier convoyeurfirst conveyor
3232
second convoyeursecond conveyor
3333
plaque latérale amovible du premier convoyeurremovable side plate of the first conveyor
3434
plaque supérieure amovible du premier convoyeurremovable top plate of the first conveyor
3535
plaque amovible du second convoyeurremovable plate of the second conveyor
4141
première boîte à rochetfirst ratchet box
4242
seconde boîte à rochetsecond ratchet box
4343
axe de boîte à rochetratchet axis
4444
roue hexagonalehexagonal wheel
5151
clipclip
6161
flexibleflexible
7171
canongun

Claims (16)

  1. A medium-caliber ammunition supply device (1) intended for a turret mounted on an armored vehicle, comprising at least one circular turntable (21, 22), that can be placed at the rear of said turret, for positioning medium-caliber ammunition (2) in a strip or chain, vertically and along a spiral path, followed by the structural elements for guided and pulled conveyance (31, 32, 41, 42) of at least one strip or chain of medium-caliber ammunition (2), which comprise at least a conveyor (31, 32) and a ratchet box (41, 42), characterized in that said structural elements for guided and/or pulled conveyance successively comprise a first conveyor (31), a first ratchet box (41), a second conveyor (32) and a second ratchet box (42), said circular turntable and said structural elements for guided and pulled conveyance all being covered with a sheet-metal protection on their side faces and/or on an upper part or roof, said sheet metal protection having mobile hatches (23, 24, 28, 33, 34, 35) mounted rotating or pivoting, allowing partial or complete and ergonomic (re)loading and/or unloading of the circular turntable (21, 22) with medium-caliber ammunition (2), either when stopped or during the movement of the vehicle, from the inside and/or outside of the turret and allowing access to the medium caliber (2) ammunition or (re)loading and/or unloading thereof in the conveyors (31, 32).
  2. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the two ratchet boxes (41, 42) each have an axle (43) that can be rotated manually to allow a partial motion on the strip or chain of medium-caliber ammunition (2) toward the barrel from outside the device.
  3. The medium-caliber ammunition (1) supply device according to Claim 2, characterized in that said axle (43) has an outside machining allowing it to be rotated by a standard socket wrench.
  4. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that it comprises at least two circular turntables (21, 22), if applicable with different sizes, associated with the guided and pulled conveyance of corresponding strips or chains of medium-caliber ammunition (2).
  5. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the moving hatches (23, 24) of the sheet-metal protection, mounted rotating, comprise at least two circular sectors that slide relative to one another at the level of the roof of the circular turntable (21, 22) and that can be actuated using small handles (26, 27).
  6. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the mobile hatches (28, 33, 34, 35) of the sheet-metal protection, mounted pivoting, comprise sheet-metal plates mounted on hinges that can be unlocked by opening clips or bolts (51).
  7. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the protection of the circular turntable (21, 22) comprises at least a mobile sheet-metal hatch (23, 24) mounted rotating and a mobile hatch (28) mounted pivoting.
  8. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the protection of the structural elements for guided and pulled conveyance comprises at least a mobile sheet-metal hatch mounted pivoting (33, 34, 35).
  9. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that it comprises a mechanical fastening system connecting the first piece of medium-caliber ammunition (2) to the central axle (25) of the turntable (21, 22), said ammunition (2) being stored in the form of a spiral path (29) at the level of the turntable(s) (21, 22).
  10. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the two conveyors (31, 32) have an open loading window favoring the (re)loading and/or unloading of short strips or chains and the attachment of medium-caliber ammunition when at least one turntable (21, 22) is empty and/or when the second conveyor (32) requires it, respectively.
  11. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that it comprises at least one mechanical sensor detecting the end of a strip or chain for each ammunition strip or chain path in order to detect the number of pieces of medium-caliber ammunition remaining in the device.
  12. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the structural elements for guided and pulled conveyance are designed for the passage from one type of ammunition to another, with no geometric and technical modification or constraint.
  13. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that each turntable (21, 22) has a retractable central axle (25) that allows stacking on a similar turntable (21, 22).
  14. The medium-caliber ammunition (1) supply device according to Claim 1, characterized in that the turntable(s) (21, 22) have opening systems allowing simultaneous (re)loading and/or unloading from the inside and the outside of the turret.
  15. The medium-caliber ammunition (1) supply device according to Claim 2, characterized in that a single shared socket wrench is necessary and sufficient to manipulate and convey the medium-caliber ammunition along said entire device.
  16. An armored-vehicle turret comprising a medium-caliber ammunition supply device (1) according to Claim 1, as well as a barrel (71) and hoses (61) allowing to connect said structural elements for guided and pulled conveyance to the barrel (71) at one end of said structural elements located on the same side as the barrel (71) within the turret, for example on the side of the commander of the armored vehicle.
EP16790540.5A 2015-11-10 2016-10-24 Device for feeding medium-calibre ammunition with a rotating plate Active EP3374720B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16790540T PL3374720T3 (en) 2015-11-10 2016-10-24 Device for feeding medium-calibre ammunition with a rotating plate

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562253236P 2015-11-10 2015-11-10
BE2015/5827A BE1023730B1 (en) 2015-12-17 2015-12-17 MEDIUM SIZE FEEDING DEVICE WITH ROTATING PLATE
PCT/EP2016/075512 WO2017080800A1 (en) 2015-11-10 2016-10-24 Device for feeding medium-calibre ammunition with a rotating plate

Publications (2)

Publication Number Publication Date
EP3374720A1 EP3374720A1 (en) 2018-09-19
EP3374720B1 true EP3374720B1 (en) 2019-08-07

Family

ID=55586969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16790540.5A Active EP3374720B1 (en) 2015-11-10 2016-10-24 Device for feeding medium-calibre ammunition with a rotating plate

Country Status (17)

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US (1) US10591233B2 (en)
EP (1) EP3374720B1 (en)
KR (1) KR102630302B1 (en)
CN (1) CN108603736B (en)
AU (1) AU2016352431B2 (en)
BE (1) BE1023730B1 (en)
BR (1) BR112018006951B1 (en)
CA (1) CA3001432A1 (en)
CO (1) CO2018005877A2 (en)
DK (1) DK3374720T3 (en)
ES (1) ES2750178T3 (en)
IL (1) IL259126B (en)
MX (1) MX2018005835A (en)
PL (1) PL3374720T3 (en)
PT (1) PT3374720T (en)
SG (1) SG11201802569TA (en)
WO (1) WO2017080800A1 (en)

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CN110849209B (en) * 2019-11-28 2021-09-24 广州大学 Automatic dial ring continuously-filled rotary disc type throwing robot
IL295322A (en) * 2020-03-06 2022-10-01 Moog Inc Loading mechanism for suspended loop ammunition

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Also Published As

Publication number Publication date
US20190339033A1 (en) 2019-11-07
KR20180092315A (en) 2018-08-17
BE1023730B1 (en) 2017-06-30
PT3374720T (en) 2019-10-28
WO2017080800A1 (en) 2017-05-18
IL259126B (en) 2020-07-30
PL3374720T3 (en) 2020-01-31
WO2017080800A8 (en) 2017-07-06
DK3374720T3 (en) 2019-10-28
ES2750178T3 (en) 2020-03-25
CA3001432A1 (en) 2017-05-18
BR112018006951A2 (en) 2018-10-16
CN108603736B (en) 2019-12-10
CO2018005877A2 (en) 2018-08-21
KR102630302B1 (en) 2024-01-26
BR112018006951B1 (en) 2021-11-16
AU2016352431A1 (en) 2018-05-10
US10591233B2 (en) 2020-03-17
MX2018005835A (en) 2018-11-12
IL259126A (en) 2018-06-28
AU2016352431B2 (en) 2021-06-24
CN108603736A (en) 2018-09-28
EP3374720A1 (en) 2018-09-19
SG11201802569TA (en) 2018-04-27
BE1023730A1 (en) 2017-06-30

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