EP0030051B1 - Rifle grenade - Google Patents

Rifle grenade Download PDF

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Publication number
EP0030051B1
EP0030051B1 EP80201097A EP80201097A EP0030051B1 EP 0030051 B1 EP0030051 B1 EP 0030051B1 EP 80201097 A EP80201097 A EP 80201097A EP 80201097 A EP80201097 A EP 80201097A EP 0030051 B1 EP0030051 B1 EP 0030051B1
Authority
EP
European Patent Office
Prior art keywords
bore
rifle
bullet
shore
ball passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80201097A
Other languages
German (de)
French (fr)
Other versions
EP0030051A1 (en
Inventor
René M.J. Chavee
André J. C. Gabriels
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.)
FN Herstal SA
Original Assignee
FN Herstal 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 FN Herstal SA filed Critical FN Herstal SA
Priority to AT80201097T priority Critical patent/ATE8179T1/en
Publication of EP0030051A1 publication Critical patent/EP0030051A1/en
Application granted granted Critical
Publication of EP0030051B1 publication Critical patent/EP0030051B1/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/04Rifle grenades
    • F42B30/06Bullet traps or bullet decelerators therefor

Definitions

  • the present invention relates to a rifle grenade intended to be launched by means of a rifle or the like, preferably with the aid of a conventional bullet cartridge.
  • Projectiles such as grenades, have been proposed which can be launched with a rifle. These projectiles generally comprise a head containing an explosive charge, this head being extended by a tubular tail intended to be threaded around the barrel of a rifle, most often equipped for this purpose with a blunderbuss.
  • the present invention aims to overcome these disadvantages by providing a particularly simple, economical and effective solution to the above problems.
  • a rifle grenade according to the invention of the type with axial bore is characterized in that in this bore is arranged a bullet pass made of a material whose hardness is between about 30 Shore A and about 70 Shore D .
  • Such a bullet offers the particularity of being easily crossed by the bullet while closing behind it to prohibit practically any passage to the propellant gases.
  • the grenade illustrated in FIG. 1 has a head 1 containing an explosive charge 2 equipped with any suitable firing means, for example a tubular rocket 3.
  • the head 1 In its rear part, the head 1 is extended by a tubular tail 4 with a tail unit 5.
  • the bore 6 of the tail 4 makes it possible to receive the end of the barrel of a rifle, end generally constituted by a launching blunderbolt.
  • the bore 6 is extended by a bore 7, passing axially through the head 1, this bore having a diameter slightly greater than the caliber of the rifle used for launching.
  • a ball pass 8 made of a flexible, respectively elastic material, is disposed in the bore 6, preferably against a shoulder 9 provided for this purpose. effect for example at the junction of bores 6 and 7.
  • the passage of the bale through such a pass-through practically does not cause any disappearance of material, either by tearing off or by fusion or combustion, provided that said pass-through conforms exit that it can expand sufficiently during the passage of the ball.
  • this expansion does not cause any appreciable deformation of the wall delimiting the bore in which the ball pass is arranged.
  • the ball pass 8 is of cylindrical shape, its diameter being less than that of the bore 6. This ball pass is in this case glued to the shoulder 9.
  • the pass-through could have a square section with rounded corners, the diagonal of which would be equal to or slightly greater than the diameter of said bore 6 (FIG. 3).
  • the body of the pass-through 8 has a cylindrical part, provided with a wide groove 10 and ends in a frustoconical part 11, so as to obtain two bearing zones 12 and 13 of same diameter, slightly larger than that of bore 6.
  • the frustoconical part 11 also offers the advantage of ensuring even better the closing of the passage hollowed out by the bullet when it crosses the body, by the action of the pressure of the gases in the barrel of the launcher rifle.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Telescopes (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention pertains to a rifle-grenade, of the type comprising a head prolonged by a tubular shank, the aforesaid head being traversed by an axial bore running into the bore of the aforesaid tubular shank, characterized in that a plug is forced into one of the aforesaid bores, this plug being made from a material the hardness of which ranges from approximately 30 Shore A to approximately 70 Shore D.

Description

La présente invention concerne une grenade à fusil destinée à être lancée au moyen d'un fusil ou similaire, préférablement à l'aide d'une cartouche à balle conventionnelle.The present invention relates to a rifle grenade intended to be launched by means of a rifle or the like, preferably with the aid of a conventional bullet cartridge.

On a proposé des projectiles, par exemple des grenades, lançables au moyen d'un fusil. Ces projectiles comportent généralement une tête contenant une charge explosive cette tête se prolongeant par une queue tubulaire destinée à être enfilée autour du canon d'un fusil, équipé à cet effet le plus souvent d'un tromblon.Projectiles, such as grenades, have been proposed which can be launched with a rifle. These projectiles generally comprise a head containing an explosive charge, this head being extended by a tubular tail intended to be threaded around the barrel of a rifle, most often equipped for this purpose with a blunderbuss.

A l'origine, ce mode de lancement exigeait l'utilisation de cartouches propulsives spéciales, sans balle. Ceci entraînait des difficultés au niveau de l'intendance, un manque d'afficacité opérationelle lors du passage du tir normal au fusil au lancement d'une grenade et un danger sérieux pour l'utilisateur en cas de méprise dans le choix de la munition ou l'état de l'arme lors du lancement d'une grenade.Originally, this launch method required the use of special propellant cartridges, without bullet. This led to difficulties in terms of stewardship, a lack of operational efficiency when switching from normal rifle shooting to the launching of a grenade and a serious danger for the user in the event of a mistake in the choice of ammunition or the condition of the weapon when launching a grenade.

Pour pallier ces désavantages, on a proposé un nombre relativement important de pièges à balle, disposés dans ladite queue tubulaire et autorisant le lancement d'une grenade à l'aide d'une cartouche à balle normale, telle qu'utilisée pour le tir au fusil.To overcome these disadvantages, a relatively large number of bullet traps have been proposed, arranged in said tubular tail and authorizing the launching of a grenade using a normal bullet cartridge, as used for marksmanship. gun.

Ces pièges à balle sont généralement de construction délicate et onéreuse car ils doivent, avec un maximum de sécurité, capter et maintenir la balle au départ du coup sans déformation néfaste, voire rupture, de ladite queue tubulaire.These ball traps are generally of delicate and expensive construction because they must, with maximum security, catch and maintain the ball at the start of the blow without harmful deformation, or even rupture, of said tubular tail.

On a ainsi proposé des pièges constituées par une succession d'écrans destinés à freiner et à immobiliser la balle. On a également proposé d'utiliser des masses métalliques aux formes et dimensions soigneusement étudiées afin d'absorber l'énergie cinetique de la balle ainsi que la chaleur résultant de son captage sans entraîner des déformations de la queue du projectile.It has thus been proposed traps constituted by a succession of screens intended to brake and immobilize the ball. It has also been proposed to use metal masses with carefully studied shapes and dimensions in order to absorb the kinetic energy of the bullet as well as the heat resulting from its capture without causing deformations of the tail of the projectile.

Ces solutions offrent en outre le désavantage d'un poids et d'un encombrement non négligeable.These solutions also offer the disadvantage of a significant weight and size.

Pour cette raison, on a proposé des grenades traversées d'un bout à l'autre par un passage axial permettant à la balle de traverser le projectile et de s'échapper à l'extérieur.For this reason, it has been proposed grenades crossed from one end to the other by an axial passage allowing the bullet to pass through the projectile and to escape outside.

Des réalisations de ce type sont par exemple décrites dans le brevet français n° 1.599.491 et dans la publication de la demande allemande n° 25 54 049.Realizations of this type are for example described in the French patent n ° 1,599,491 and in the publication of the German application n ° 25 54 049.

Cette conception séduisante offre le désavantage d'entraïner une perte d'efficacité due au fait que les gaz propulsifs peuvent également s'échapper dudit alésage, sauf à prévoir- comme dans la demande n° 25 54 049 précitée-un mécanisme obturateur complexe destiné à obturer ledit alésage sitôt après le passage de la balle. Du point de vue économique, un tel dispositif obturateur n'est probablement pas moins onéreux qu'un piège à balle. En outre, comme cet obturateur n'entre en fonction que suite à un effet mécanique exercé par la balle lors de son passage, une grenade ainsi équipée ne peut être tirée avec des cartouches propulsives sans balle, sauf à admettre un rendement très faible, respectivement une modification profonde des conditions de tir.This attractive design offers the disadvantage of causing a loss of efficiency due to the fact that the propellant gases can also escape from said bore, unless provision is made - as in the application No. 25 54 049 cited above - a complex shutter mechanism intended to close off said bore immediately after the bullet has passed. From an economic point of view, such a shutter device is probably no less expensive than a bullet trap. In addition, as this shutter only comes into operation following a mechanical effect exerted by the bullet during its passage, a grenade thus equipped cannot be fired with propellant cartridges without a bullet, unless a very low yield is admitted, respectively a profound change in shooting conditions.

On a également proposé (CH-A-225.806), pour lancer un projectile à passage axial au moyen d'un tromblon fixé en bout d'un canon de fusil et d'une cartouche à balle usuelle, de prévoir un passe-balle distinct du projectile, constitué par une cuvette métallique au calibre du tromblon et supportant une masse de caoutchouc. Ce passe-balle connu est destiné a été glissé dans ledit tromblon, avant le projectile. Les désavantages d'un tel système sont évidents: pièce supplémentaire à manipuler par le tireur, problèmes possibles lors d'un tir tendu, balistique incertaine donc dangereuse du passe-balle, etc.It has also been proposed (CH-A-225.806), to launch a projectile with axial passage by means of a blunderbuss fixed at the end of a rifle barrel and of a usual bullet cartridge, to provide a separate bullet pass of the projectile, consisting of a metal bowl the size of a blunderbuss and supporting a mass of rubber. This known ball pass is intended has been slid into said blunderbuss, before the projectile. The disadvantages of such a system are obvious: additional part to be handled by the shooter, possible problems during a tense shot, uncertain ballistics therefore dangerous of the pass-ball, etc.

La présente invention a pour but de pallier ces désavantages en fournissant une solution particulièrement simple, économique et efficace aux problèmes susdécrits.The present invention aims to overcome these disadvantages by providing a particularly simple, economical and effective solution to the above problems.

A cet effet, une grenade à fusil selon l'invention, du type à alésage axial se caractérise en ce que dans cet alésage est disposé un passe-balle en une matière dont la dureté est comprise entre environ 30 Shore A et environ 70 Shore D.To this end, a rifle grenade according to the invention, of the type with axial bore is characterized in that in this bore is arranged a bullet pass made of a material whose hardness is between about 30 Shore A and about 70 Shore D .

Un tel passe-balle offre la particularité d'être aisément traversé par la balle tout en se referment derrière celle-ci pour interdire pratiquement tout passage aux gaz propulsifs.Such a bullet offers the particularity of being easily crossed by the bullet while closing behind it to prohibit practically any passage to the propellant gases.

Pour plus de clarté, l'invention est décrite plus en détail ci-après avec référence aux dessins schématiques annexés, dans lesquels:

  • la figure 1 montre une grenade à fusil selon l'invention, en coupe axiale;
  • la figure 2 est une vue à échelle agrandie de la partie indiquée en F2 à la figure 1 ; et
  • les figures 3 et 4 montrent deux autres formes de réalisation du passe-balle selon l'invention, respetivement une coupe transversale et axiale.
For clarity, the invention is described in more detail below with reference to the attached schematic drawings, in which:
  • Figure 1 shows a rifle grenade according to the invention, in axial section;
  • Figure 2 is an enlarged view of the part indicated in F2 in Figure 1; and
  • Figures 3 and 4 show two other embodiments of the ball pass according to the invention, respectively a transverse and axial section.

La grenade illustrée à la figure 1, comporte une tête 1 contenant une charge explosive 2 équippée de tout moyen de mise à feu adéquat, par exemple une fusée tubulaire 3.The grenade illustrated in FIG. 1 has a head 1 containing an explosive charge 2 equipped with any suitable firing means, for example a tubular rocket 3.

En sa partie arrière, la tête 1 se prolonge par une queue tubulaire 4 à empennage 5. L'alésage 6 de la queue 4 permet de recevoir l'extrémité du canon d'un fusil, extrémité généralement constituée par un tromblon de lancement.In its rear part, the head 1 is extended by a tubular tail 4 with a tail unit 5. The bore 6 of the tail 4 makes it possible to receive the end of the barrel of a rifle, end generally constituted by a launching blunderbolt.

L'alésage 6 se prolonge par un alésage 7, traversant axialement la tête 1, cet alésage ayant un diamètre légèrement supérieur au calibre du fusil utilisé pour le lancement.The bore 6 is extended by a bore 7, passing axially through the head 1, this bore having a diameter slightly greater than the caliber of the rifle used for launching.

Dans leur principe, toutes les dispositions susdécrites sont connues.In principle, all of the above provisions are known.

Conformément à l'invention, un passe-balle 8 en une matière souple, respectivement élastique, est disposé dans l'alésage 6, préférablement contre un épaulement 9 prévu à cet effet par exemple à la jonction des alésages 6 et 7.In accordance with the invention, a ball pass 8 made of a flexible, respectively elastic material, is disposed in the bore 6, preferably against a shoulder 9 provided for this purpose. effect for example at the junction of bores 6 and 7.

De nombreuses matières naturelles et synthétiques peuvent convenir pour la réalisation du passe-balle 8, pour autant que leur dureté soit comprise. entre environ 30 Shore A et environ 70 Shore D. Ainsi, les caoutchoucs naturels et synthétiques ont donné de bons résultats.Many natural and synthetic materials may be suitable for making the pass-through 8, provided that their hardness is understood. between about 30 Shore A and about 70 Shore D. Thus, natural and synthetic rubbers have given good results.

Des essais ont prouvé que le passage de la balle au travers d'un tel passe-balle n'entraînait pratiquement aucune disparition de matière, que ce soit par arrachage ou paf fusion, respectivement combustion, ceci à condition de conformer ledit passe-balle en sortie qu'il puisse se dilater suffisamment durant le passage de la balle. En outre, il est souhaitable que cette dilatation n'entraîne aucune déformation appréciable de la paroi délimitant l'alésage dans lequel est disposé le passe-balle. Ainsi, dans l'exemple de la figure 2, le passe-balle 8 est de forme cylindrique, son diamètre étant inféreiur à celui de l'alésage 6. Ce passe-balle est en l'occurrence collé à l'épulement9.Tests have proven that the passage of the bale through such a pass-through practically does not cause any disappearance of material, either by tearing off or by fusion or combustion, provided that said pass-through conforms exit that it can expand sufficiently during the passage of the ball. In addition, it is desirable that this expansion does not cause any appreciable deformation of the wall delimiting the bore in which the ball pass is arranged. Thus, in the example of FIG. 2, the ball pass 8 is of cylindrical shape, its diameter being less than that of the bore 6. This ball pass is in this case glued to the shoulder 9.

Au lieu d'être cylindrique, le passe-balle pourrait présenter une section de forme carrée à coins arrondis, dont la diagonale serait égale ou légérement supérieure au diamètre dudit alésage 6 (figure 3).Instead of being cylindrical, the pass-through could have a square section with rounded corners, the diagonal of which would be equal to or slightly greater than the diameter of said bore 6 (FIG. 3).

Dans l'exemple de la figure 4, le corps du passe-balle 8 présente une partie cylindrique, pourvue d'une large gorge 10 et se termine par une partie tronconique 11, de sorte à obtenir deux zones d'appui 12 et 13 de même diamètre, légérement supérieure à celui de l'alésage 6.In the example of FIG. 4, the body of the pass-through 8 has a cylindrical part, provided with a wide groove 10 and ends in a frustoconical part 11, so as to obtain two bearing zones 12 and 13 of same diameter, slightly larger than that of bore 6.

La partie tronconique 11 offre également l'avantage d'assurer mieux encore la fermeture du passage creusé par la balle lorsqu'elle traverse le corps, de par l'action de la pression des gaz dans le canon du fusil lanceur.The frustoconical part 11 also offers the advantage of ensuring even better the closing of the passage hollowed out by the bullet when it crosses the body, by the action of the pressure of the gases in the barrel of the launcher rifle.

Claims (4)

1. Rifle grenade of the type consisting of a head (1) extended by a tubular tail (4), the said head being traversed by an axial bore (7), debouching into the axial bore (6) of the said tubular tail, characterized thereby that a ball passage means (8) is placed in one of the said bores (6, 7), this ball passage means (8) being made of a material the hardness of which is situated between about 30 Shore A and about 70 Shore D.
2. Rifle grenade according to claim 1, characterized thereby that the said ball passage means (8) is supported by a collar (9), provided therefore in the said bore (6, 7).
3. Rifle grenade according to claim 2, characterized thereby that the said collar (9) is situated at the junction of the two aforesaid bores (6, 7).
4. Rifle grenade according to claim 2, characterized thereby that the shape of said ball passage means (8) is determined by the diameter of said bore (6, 7), so as to allow expansion of the ball passage means (8) in the directions perpendicular to the axis of the bore.
EP80201097A 1979-11-30 1980-11-20 Rifle grenade Expired EP0030051B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80201097T ATE8179T1 (en) 1979-11-30 1980-11-20 RIFLE GRENADE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2/58241A BE880349A (en) 1979-11-30 1979-11-30 SHOTGUN GRENADE
BE58241 1979-11-30

Publications (2)

Publication Number Publication Date
EP0030051A1 EP0030051A1 (en) 1981-06-10
EP0030051B1 true EP0030051B1 (en) 1984-06-27

Family

ID=3865486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80201097A Expired EP0030051B1 (en) 1979-11-30 1980-11-20 Rifle grenade

Country Status (7)

Country Link
US (1) US4394836A (en)
EP (1) EP0030051B1 (en)
AT (1) ATE8179T1 (en)
BE (1) BE880349A (en)
DE (1) DE3068381D1 (en)
HK (1) HK86487A (en)
SG (1) SG49487G (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE885618R (en) * 1979-11-30 1981-04-10 Herstal Sa TELESCOPIC PROJECTILE
BE880349A (en) * 1979-11-30 1980-05-30 Herstal Sa SHOTGUN GRENADE
BE1000944A3 (en) * 1987-09-30 1989-05-23 Nat Herstal Fn Sa Fab Granada anti-char.
BE1003971A3 (en) * 1990-11-14 1992-07-28 Herstal Sa Improvements shooting.
FR2685468B1 (en) * 1991-12-24 1995-04-28 Luchaire Defense Sa SOCKET TUBE FOR RIFLE WITH RIFLE THAT CAN RETAIN BALL FRAGMENTS.
US5574245A (en) * 1996-02-13 1996-11-12 Buc; Steven M. Fragment-sealing bullet trap
US9038540B2 (en) * 2012-01-11 2015-05-26 Cardinal Scientific, Inc. Apparatus, method and system for a ballistically launched delivery device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE300065C (en) *
FR604510A (en) * 1925-01-06 1926-05-06 Device for throwing a rifle grenade by means of the regulation bullet cartridge
CH225806A (en) * 1940-02-01 1943-02-28 Deutsche Waffen & Munitionsfab Rifle grenade.
US3395478A (en) * 1962-03-02 1968-08-06 Army Usa Rifle mounted auxiliary firearm and multiprojectile cartridge therefor
US3318033A (en) * 1965-09-29 1967-05-09 Aai Corp Grenade launching arrangement
US3537398A (en) * 1967-12-28 1970-11-03 Andre Dauban Rifle grenade
BE754543A (en) * 1969-08-07 1971-02-08 Allied Res Ass Inc DEVICE FOR PROPULATING RIFLE GRENADES WITH BULLET CARTRIDGES
US3726036A (en) * 1970-07-09 1973-04-10 Brunswick Corp Launch tube assembly
SE411070B (en) * 1974-12-30 1979-11-26 Matzen Nils Denny DEVICE FOR CHARGING THE DRILL
US4013011A (en) * 1975-04-08 1977-03-22 Fabrique Nationale Herstal S.A. Throwing device for grenades
DE2554049A1 (en) * 1975-12-02 1977-06-08 Messerschmitt Boelkow Blohm Rifle projectile with hollow shaft - has through bore for passage of bullet and closure valve for gases
SE7906604L (en) * 1978-09-22 1980-03-23 Sarmac Sa GEVERSGRANAT
US4253889A (en) * 1978-11-29 1981-03-03 Maes Michel E Two-component explosive composition
FR2461921A1 (en) * 1979-07-24 1981-02-06 Alsetex Bullet trap for grenade launching - has conical part which bullets hit expanding energy to propel tailed type grenade
BE880349A (en) * 1979-11-30 1980-05-30 Herstal Sa SHOTGUN GRENADE

Also Published As

Publication number Publication date
HK86487A (en) 1987-11-27
BE880349A (en) 1980-05-30
US4394836A (en) 1983-07-26
ATE8179T1 (en) 1984-07-15
SG49487G (en) 1988-01-15
DE3068381D1 (en) 1984-08-02
EP0030051A1 (en) 1981-06-10

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