EP0388301B1 - Dispositif d'alimentation en munitions d'une arme automatique - Google Patents

Dispositif d'alimentation en munitions d'une arme automatique Download PDF

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Publication number
EP0388301B1
EP0388301B1 EP19900400692 EP90400692A EP0388301B1 EP 0388301 B1 EP0388301 B1 EP 0388301B1 EP 19900400692 EP19900400692 EP 19900400692 EP 90400692 A EP90400692 A EP 90400692A EP 0388301 B1 EP0388301 B1 EP 0388301B1
Authority
EP
European Patent Office
Prior art keywords
weapon
feeder
ramp
fact
transfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19900400692
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0388301A1 (fr
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
Giat Industries SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giat Industries SA filed Critical Giat Industries SA
Publication of EP0388301A1 publication Critical patent/EP0388301A1/fr
Application granted granted Critical
Publication of EP0388301B1 publication Critical patent/EP0388301B1/fr
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 according to the preamble of claim 1.
  • Patents GB-604,291, GB-590,783 and GB-624,358 all describe a feeding device connecting a provider to a weapon.
  • the provider is fixed and the mobile weapon in rotation and in elevation.
  • the feed device then consists of a large number of elements movable with respect to each other, capable of elastic deformation to follow the deflections of the weapon.
  • the patent GB-2 077 889 describes a feeding device according to the preamble of claim 1 and close to the invention in that it connects a stationary provider to a stationary weapon.
  • the weapon is animated back and forth and it is to feed it at a specific point and this patent proposes a fall for the transfer of ammunition.
  • guiding and conveying are ensured by a belt.
  • 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 stationary provider, comprising means for transferring the ammunition between the provider and the weapon parallel to it. same and perpendicular to the translational movement of the weapon, characterized in that said means ensure the transfer of the ammunition in an arc of a circle, and in that the device comprises a helical ramp with variable pitch of the same axis as the arc for transferring the ammunition, one end being integral with one side of the provider and the other of the weapon, the ramp having guide means for positioning the munition axially during its transfer between the provider and the weapon .
  • 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 movement of translation of the weapon.
  • each element may include at the hole a 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 weapon.
  • 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 shape of an arc of a circle 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 dihedral whose edge is substantially coincident. with the axis of the ammunition transfer arc.
  • One end of the ramp being linked to the outfitter whenever an ammunition emerges from the latter, it engages on the helical ramp which then ensures its longitudinal guidance during its transfer to the weapon to which the other end of the ramp is attached.
  • 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 stationary 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 cartridge case 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 the ramp 11.
  • 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 15 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 ammunition 3 is taken care of 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP19900400692 1989-03-16 1990-03-15 Dispositif d'alimentation en munitions d'une arme automatique Expired - Lifetime EP0388301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903440 1989-03-16
FR8903440A FR2644570A1 (fr) 1989-03-16 1989-03-16 Dispositif d'alimentation en munitions d'une arme automatique

Publications (2)

Publication Number Publication Date
EP0388301A1 EP0388301A1 (fr) 1990-09-19
EP0388301B1 true EP0388301B1 (fr) 1994-01-12

Family

ID=9379751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900400692 Expired - Lifetime EP0388301B1 (fr) 1989-03-16 1990-03-15 Dispositif d'alimentation en munitions d'une arme automatique

Country Status (3)

Country Link
EP (1) EP0388301B1 (enrdf_load_stackoverflow)
DE (1) DE69005862D1 (enrdf_load_stackoverflow)
FR (1) FR2644570A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664686A1 (fr) * 1990-07-12 1992-01-17 Giat Ind Sa Dispositif d'alimentation en munitions d'une arme automatique.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CH222827A (de) * 1941-08-23 1942-08-15 Oerlikon Buehrle Ag Rücklaufbeweglich gelagerte automatische Feuerwaffe.
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
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
FR2484624A1 (fr) * 1980-06-14 1981-12-18 Dornier Gmbh Dispositif d'alimentation de projectiles, notamment pour canons montes sur des avions

Also Published As

Publication number Publication date
EP0388301A1 (fr) 1990-09-19
DE69005862D1 (de) 1994-02-24
FR2644570A1 (fr) 1990-09-21
FR2644570B1 (enrdf_load_stackoverflow) 1994-04-22

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