WO2009101307A2 - Munition - Google Patents

Munition Download PDF

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Publication number
WO2009101307A2
WO2009101307A2 PCT/FR2009/050086 FR2009050086W WO2009101307A2 WO 2009101307 A2 WO2009101307 A2 WO 2009101307A2 FR 2009050086 W FR2009050086 W FR 2009050086W WO 2009101307 A2 WO2009101307 A2 WO 2009101307A2
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WO
WIPO (PCT)
Prior art keywords
projectile
head
cap
axis
ammunition
Prior art date
Application number
PCT/FR2009/050086
Other languages
French (fr)
Other versions
WO2009101307A3 (en
Inventor
Jean-Pierre Denis
Original Assignee
Jean-Pierre Denis
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 Jean-Pierre Denis filed Critical Jean-Pierre Denis
Publication of WO2009101307A2 publication Critical patent/WO2009101307A2/en
Publication of WO2009101307A3 publication Critical patent/WO2009101307A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/34—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect expanding before or on impact, i.e. of dumdum or mushroom type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/02—Bullets

Definitions

  • the present invention relates to a munition composed of a projectile for short or long calibers to the diameter of the barrel of the weapon and a socket.
  • the lead projectile crashes on the target and has no piercing characteristic. In addition, it has the disadvantage of being extremely polluting.
  • the other projectile of this type (shown in FIG. 4) which is perforating, known under the name THV, that is to say very high speed initial projectile including perforating bulletproof vests has a number of disadvantages:
  • this projectile causes a high wear in the barrel of the weapon because having very schematically the shape of a hollow cylinder 1 whose front end, has a pin 2, under the effect of the propellant charge, the walls 1 1 of the cylinder have a tendency to press against the barrel and to use it excessively, especially since this projectile is made of brass and passes at a very high speed.
  • the object of the present invention is to develop a munition composed of a projectile calibrated to the diameter of the barrel of the weapon and a socket containing the propellant charge, which avoids lead pollution and is an effective projectile for both soft targets and hard targets, and this at a distance of about 20-30 meters.
  • the invention relates to a munition of the type defined above characterized in that the projectile comprises
  • A- a body of high density of a metal or metal alloy other than lead, having a cylindrical shape of circular section equal to that of the barrel of the weapon, the body being surmounted by an active head in the form of a revolution around the axis of the projectile, but set back from the ogival profile
  • B- a plastic cap applied to the head and having an ogival-shaped exterior in the prolongation of the body and the perpendicular section of which axis of the projectile does not extend beyond the section of the cylindrical body.
  • This projectile has the advantage of completely eliminating lead pollution while being very effective since equipped with an active head.
  • the projectile has excellent penetration into the air thanks to its ogival outer shape, continuing at the rear by the cylindrical body of high density and length determined according to the application of the ammunition.
  • the ammunition presents no difficulty of feeding because the projectile has no roughness likely to hang so much for its introduction in the charger that in the chamber of the weapon which avoids the catastrophic difficulties of a weapon stopped at the moment critical.
  • the projectile is also simple to achieve which makes it compatible with a very large series.
  • the projectile has a certain weight since it is not hollow, for example of the order of 5 grams or even 10 to 12 grams for the long calibers, which stabilizes it on the trajectory, allows an accurate shot to average distance and increases its effectiveness at the moment of impact.
  • the active head is a tulip-shaped ring with a conical inlet on the axis and a neck of reduced section at the base of the head, at the junction with the body.
  • the active head is a tulip-shaped crown with a tapered inlet on the axis and a neck of reduced section at the base of the head, at its junction with the body.
  • This projectile shape is particularly effective for relatively soft targets without the cap interfering with the penetrating effect.
  • the conical inlet of the crown continues towards the rear of the projectile by a cylindrical housing reinforcing the effect of opening the crown on impact, especially as the crown connected to the body by a neck constituting a ring of reduced thickness, promotes opening.
  • the cylindrical housing passes through the body to receive a plug engaged by the base of the body and delimiting an air cushion with the cap molded on the tulip-shaped head.
  • the air cushion that necessarily remains between the plug housed in the bottom of the cylindrical housing and the plastic corner overmolded in the crown, allows the recoil of the plastic corner inside the crown and the cylindrical housing promoting the opening of the crown on impact.
  • the crown is split longitudinally to form kinds of petals favoring opening and spreading of the column and increasing the section of the projectile in the target.
  • the projectile comprises a shoulder formed by the front of the cylindrical portion at the base of the neck.
  • This shoulder favors the attachment of the back of the overmolded warhead, especially since it may comprise a peripheral groove, for example of triangular section, interrupting the generally truncated surface of the shoulder and favoring the hooking of the cap at the start of the stroke and on the trajectory of the projectile.
  • the ammunition is perforating, the active head being in the form of a conical pin connected to the body by a neck.
  • This conical head preferably has a form of revolution generated by a generally conical curvilinear generatrix rotating about the longitudinal axis of the projectile. This shape does not interfere with the stability of the projectile on its trajectory since the cap promotes penetration into the air and emerges at the moment of impact.
  • the body of the projectile that is to say its cylindrical portion of circular section and the head which surmounts it are in one piece of a metal such as copper or brass, zinc, bronze, steel or a mixture of sintered or bound particles.
  • FIGS. 1A, 1B respectively show a sectional view of an embodiment and of its variant of a finished projectile and a projectile body represented respectively in the left and right halves with respect to the axis of the projectile.
  • FIGS. 2A and 2B are analogous views of another embodiment and its variant showing the projectile with its cap and the body of the cut projectile (FIG. 2B) and
  • FIGS. 3A, 3B show two other projectile embodiments according to the invention in sectional view
  • FIG. 4 shows a known THV projectile
  • FIG. 5 shows another embodiment of a perforating projectile.
  • FIGS. 1A, 1B show a first embodiment of a projectile P1 formed of a body 100 provided with a cap 120 as well as a variant 100A, respectively presented to the right and to the left of the axis XX of the projectile.
  • the description of the embodiment will be presented hereinafter in the left half of Figs. 1A, 1B.
  • the projectile Pl at the caliber of the barrel of the weapon consists of a metal body 100 of high density surmounted by an active head 110 covered by a cap 120 of plastics material.
  • the body 100 made of a metal or a metal alloy or a mixture of sintered or bonded particles, non-polluting other than lead, has a cylindrical shape of circular section equal to that of the barrel of the weapon for which the projectile is intended.
  • the active head 1 10 has a shape of revolution about the axis XX of the projectile such as a ring-shaped tulip with a conical inlet 1 1 1 centered on the axis XX.
  • the base of the crown joins the top 1 16 of the body 100 by a neck 1 12 delimiting a ring 1 13, of reduced section connecting the head 1 10 to the body.
  • the conical inlet January 1 continues inside the ring by a cylindrical housing 1 14 of circular section reaching substantially to the level of the body. This projectile can be manufactured in a very economical way by cold stamping and recovery by the neck and the remaking of the crown.
  • the shape of the generatrix generating the head 1 10 by rotation about the axis XX is slightly different to the right and left. For the version on the left, the head 1 10 is longer than in the version on the right HOA.
  • the cap 120 made of plastic material and in particular overmolded externally has a pointed shape in the extension of the body 100 and constituting a form of revolution generated by a curve rotating about the axis XX.
  • the section of the cap 120 perpendicular to the axis XX does not exceed the section of the cylindrical body.
  • the cap 120 matches the contour of the head 1 10 and the various parts in relief. It relies on the shoulder 1 1. As a result, the cap 120 does not have exactly the same inner shape as the cap 120A while the outer contour shaped ogive is the same.
  • the cap 120 enters the funnel-shaped inlet 1 1 1 as well as in the cylindrical portion 1 14 and constitutes a coin functioning as a wedge at the moment of impact of the projectile against the target as it has already been mentioned above.
  • the following references will be used hereinafter as those of the first embodiment and its variant, references which are increased by 100 each time. All the elements already described will not be redescribed. in detail below. This concerns in particular the variant of each of the embodiments.
  • FIGS. 2A, 2B show another embodiment P2 and a variant of the projectile of the ammunition according to the invention.
  • This embodiment P2 differs from the previous Pl in that the cylindrical housing 214 passes through the body 200 to receive from below a plug 230 such as a rivet, closing a portion of the housing to leave a cushion of air 240 relative with the carrot 215 of plastic of the cap 220 which enters the housing at the time of injection overmoulding.
  • This air cushion allows the part of the cap injected into the crown to be pulled back so that at the moment of impact, this part can move back more easily and move the crown apart to spread it out and increase the section.
  • FIG. 2B shows in section, the two embodiments of this projectile body without the cap, with its two variants to the right and to the left of the axis XX.
  • FIGS. 3A, 3B show two other embodiments P3, P4 of the projectile corresponding to a cylindrical body shape similar to those of FIGS. 1A, 1B and FIGS. 2A, 2B with a housing 414 passing through to form a cushion.
  • the ring 314, 410 is provided with slots 318, 418 to promote its opening.
  • the P1-P4 projectiles shown in Figures 1A-3B are intended for a relatively soft target as opposed to a hard target.
  • the characteristic of these projectiles is to be very effective in such a target and not to pass through from one side due to the opening and spreading of the crown of the head at the time of impact.
  • This opening and spreading effect is caused by the deformation of the ring 1 10-410 affecting the impact and also the wedge effect of the part of the plastics material 1 15-415 found in the conical inlet 1 1 1-41 1 and in the cylindrical housing.
  • This corner effect is accentuated in the case where there is an air cushion 240, 440 on the back of this part of plastic material in front of the plug 230, 430 of the housing 214, 414 passing through the body.
  • FIG. 4 shows a type of projectile P5 according to the invention having perforating characteristics. As a reminder, a known THV perforating projectile is shown in FIG.
  • the projectile consists of a body 500 of high density of a metal or a non-polluting metal alloy other than lead such as copper or brass.
  • the body 500 has a cylindrical shape of circular section equal to that of the barrel of the weapon and is surmounted by an active perforating head 510 in the form of a frustoconical pawn set back from the ogival profile that can be trace from the circular cylindrical shape of the body to which it is connected by a collar 512.
  • the body Near the neck, the body has peripheral grooves 501 and the head 510 of frustoconical shape is generated by a curvilinear generatrix; terminated by a conical point.
  • the cap 520 overmolded on the head 510 is hooked by a connection by the shape to this frustoconical pin at the base of the frustoconical shape and the neck 512.
  • the cap 520 overmolded externally has a warhead shape in the extension of the 500 body without exceeding the outline of the body.
  • the tip of the head 510 may comprise a knurled portion 519.
  • This perforating projectile P5 is made of a hard metal, especially copper, brass, an alloy or steel. At the moment of impact, the head 510 has a very effective perforating effect.
  • the cap 520 is pierced by the head and the body; it deviates to the side without reducing efficiency. The cap 520 stabilizes the projectile on its path by promoting its penetration into the air.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Toys (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

Munition made up of a projectile (P1) sized to the calibre of the barrel comprising a high-density cylindrical body (100) made of a metal or of a metal alloy other than lead, surmounted by a warhead (110) that exhibits symmetry of revolution about the axis (XX) of the projectile, but which is set back with respect to the ogive profile, and a plastic cap (120) overmoulded over the head (110) and externally having an ogive shape in the extension of the body (100, 500).

Description

« Munition » Domaine de l'invention "Munition" Field of the invention
La présente invention concerne une munition composée d'un projectile pour des calibres courts ou longs au diamètre du canon de l'arme et d'une douille. Etat de la techniqueThe present invention relates to a munition composed of a projectile for short or long calibers to the diameter of the barrel of the weapon and a socket. State of the art
II existe globalement deux types de telles munitions avec un projectile soit en plomb par exemple de 9 grammes, revêtu sur toute sa surface d'une mince pellicule de laiton ou d'un métal de ce type soit un projectile en acier, en laiton, perforant, soit en plomb.There are generally two types of such ammunition with a projectile either lead for example 9 grams, coated on its entire surface with a thin film of brass or a metal of this type is a steel projectile, brass, perforating either lead.
Le projectile en plomb s'écrase sur la cible et n'a aucune caractéristique perforante. De plus, il a le désavantage d'être extrêmement polluant.The lead projectile crashes on the target and has no piercing characteristic. In addition, it has the disadvantage of being extremely polluting.
En effet, il s'utilise annuellement environ 109 tels projectiles dans le monde, ce qui se traduit pour des projectiles de 9 grammes, représentant la majorité des projectiles bien qu'il en existe des plus grands et de ce fait, plus lourds, 104 tonnes de plomb qui polluent annuellement la nature.Indeed, it is used annually about 9 9 such projectiles in the world, which is reflected for projectiles of 9 grams, representing the majority of the projectiles although there are larger and therefore, heavier, 10 4 tons of lead that pollute the nature annually.
L'autre projectile de ce type (représenté à la figure 4) qui est perforant, connu sous la dénomination THV, c'est-à-dire projectile à très haute vitesse initiale notamment perforant des gilets pare-balles a un certain nombre d'inconvénients :The other projectile of this type (shown in FIG. 4) which is perforating, known under the name THV, that is to say very high speed initial projectile including perforating bulletproof vests has a number of disadvantages:
Tout d'abord sa forme n'est pas aérodynamique de sorte que son freinage dans l'air est important et sa portée très limitée (de l'ordre de 7 à 10 mètres), d'autant plus qu'il est relativement léger (3 à 4 grammes). Son utilisation est également risquée car sa forme favorise les accrochages et gêne souvent la remontée de la cartouche dans le chargeur. De plus, lors de l'introduction de la cartouche dans la chambre de l'arme, la pointe risque de s'accrocher provoquant un enrayage de l'arme d'introduction. En outre, ce projectile provoque une forte usure dans le canon de l'arme car ayant très schématiquement la forme d'un cylindre creux 1 dont l'extrémité avant, comporte un pion 2, sous l'effet de la charge propulsive, les parois 1 1 du cylindre ont tendance à se plaquer contre le canon et à l'user de manière excessive d'autant plus que ce pro- jectile est en laiton et passe à très haute vitesse. But de l'inventionFirstly, its shape is not aerodynamic so that its braking in the air is important and its range very limited (of the order of 7 to 10 meters), especially since it is relatively light ( 3-4 grams). Its use is also risky because its shape promotes clashes and often hinders the recovery of the cartridge in the charger. In addition, when introducing the cartridge into the chamber of the weapon, the tip may cling causing a jamming of the introduction weapon. In addition, this projectile causes a high wear in the barrel of the weapon because having very schematically the shape of a hollow cylinder 1 whose front end, has a pin 2, under the effect of the propellant charge, the walls 1 1 of the cylinder have a tendency to press against the barrel and to use it excessively, especially since this projectile is made of brass and passes at a very high speed. Purpose of the invention
La présente invention a pour but de développer une munition composée d'un projectile calibré au diamètre du canon de l'arme et d'une douille contenant la charge propulsive, qui évite la pollution par le plomb et constitue un projectile efficace tant pour les cibles molles que pour les cibles dures, et cela à moyenne distance de l'ordre de 20-30 mètres. Exposé et avantages de l'inventionThe object of the present invention is to develop a munition composed of a projectile calibrated to the diameter of the barrel of the weapon and a socket containing the propellant charge, which avoids lead pollution and is an effective projectile for both soft targets and hard targets, and this at a distance of about 20-30 meters. Description and advantages of the invention
A cet effet, l'invention concerne une munition du type défini ci-dessus caractérisée en ce que le projectile comprendFor this purpose, the invention relates to a munition of the type defined above characterized in that the projectile comprises
A- un corps de forte densité en un métal ou en alliage métallique autre que le plomb, ayant une forme cylindrique de section circulaire égale à celle du canon de l'arme, le corps étant surmonté d'une tête active à forme de révolution autour de l'axe du projectile, mais en retrait par rapport au profil en ogive, B- une coiffe en matière plastique appliquée sur la tête et ayant extérieurement une forme d'ogive dans le prolongement du corps et dont la sec- tion perpendiculaire à l'axe du projectile ne dépasse pas la section du corps cylindrique.A- a body of high density of a metal or metal alloy other than lead, having a cylindrical shape of circular section equal to that of the barrel of the weapon, the body being surmounted by an active head in the form of a revolution around the axis of the projectile, but set back from the ogival profile, B- a plastic cap applied to the head and having an ogival-shaped exterior in the prolongation of the body and the perpendicular section of which axis of the projectile does not extend beyond the section of the cylindrical body.
Ce projectile a l'avantage d'éliminer totalement la pollution par le plomb tout en étant très efficace puisque muni d'une tête active. Le projectile a une excellente pénétration dans l'air grâce à sa forme exté- rieure en ogive, se poursuivant à l'arrière par le corps cylindrique de forte densité et de longueur déterminée en fonction de l'application de la munition. La munition ne présente aucune difficulté d'alimentation puisque le projectile n'a aucune aspérité susceptible de s'accrocher tant pour son introduction dans le chargeur que dans la chambre de l'arme ce qui évite les difficultés catastrophiques d'une arme enrayée au moment critique.This projectile has the advantage of completely eliminating lead pollution while being very effective since equipped with an active head. The projectile has excellent penetration into the air thanks to its ogival outer shape, continuing at the rear by the cylindrical body of high density and length determined according to the application of the ammunition. The ammunition presents no difficulty of feeding because the projectile has no roughness likely to hang so much for its introduction in the charger that in the chamber of the weapon which avoids the catastrophic difficulties of a weapon stopped at the moment critical.
Le projectile est également simple à réaliser ce qui le rend compatible avec une fabrication de très grande série.The projectile is also simple to achieve which makes it compatible with a very large series.
Enfin, le projectile a un certain poids puisqu'il n'est pas creux, par exemple de l'ordre de 5 grammes voire 10 à 12 grammes pour les calibres longs, ce qui le stabilise sur la trajectoire, permet un tir précis à moyenne distance et augmente son efficacité au moment de l'impact.Finally, the projectile has a certain weight since it is not hollow, for example of the order of 5 grams or even 10 to 12 grams for the long calibers, which stabilizes it on the trajectory, allows an accurate shot to average distance and increases its effectiveness at the moment of impact.
A l'impact, la coiffe en matière plastique surmoulée se détache de la tête en fonctionnant éventuellement par effet de coin sans gêner pas la pénétration de la tête et du corps du projectile dans la cible. Cette coiffe ne réduit pas non plus l'effet perforant du projectile vis-à-vis d'une protection telle qu'un gilet pare-balles. Suivant une autre caractéristique avantageuse, la tête active est une couronne en forme de tulipe avec une entrée conique sur l'axe et un col de section réduite à la base de la tête, à la jonction avec le corps.On impact, the overmolded plastic cap is detached from the head possibly operating wedge effect without hindering the penetration of the head and body of the projectile into the target. This cap does not reduce the piercing effect of the projectile vis-à-vis a protection such as a bulletproof vest. According to another advantageous characteristic, the active head is a tulip-shaped ring with a conical inlet on the axis and a neck of reduced section at the base of the head, at the junction with the body.
Suivant une autre caractéristique avantageuse, la tête ac- tive est une couronne en forme de tulipe avec une entrée conique sur l'axe et un col de section réduite à la base de la tête, à sa jonction avec le corps.According to another advantageous characteristic, the active head is a tulip-shaped crown with a tapered inlet on the axis and a neck of reduced section at the base of the head, at its junction with the body.
Cette forme de projectile est particulièrement efficace pour des cibles relativement molles sans que la coiffe ne gêne l'effet pénétrant.This projectile shape is particularly effective for relatively soft targets without the cap interfering with the penetrating effect.
Au contraire, la partie centrale de la coiffe, surmoulée dans la cavité en forme de tulipe de la couronne, produit l'ouverture de cette couronne par effet de coin et augmente ainsi l'efficacité du projectile.On the contrary, the central part of the cap, overmolded in the tulip-shaped cavity of the crown, produces the opening of this ring by wedge effect and thus increases the effectiveness of the projectile.
Suivant une autre caractéristique avantageuse, l'entrée conique de la couronne se poursuit vers l'arrière du projectile par un logement cylindrique renforçant l'effet d'ouverture de la couronne à l'impact, d'autant plus que la couronne reliée au corps par un col constituant un anneau d'épaisseur réduite, favorise l'ouverture.According to another advantageous characteristic, the conical inlet of the crown continues towards the rear of the projectile by a cylindrical housing reinforcing the effect of opening the crown on impact, especially as the crown connected to the body by a neck constituting a ring of reduced thickness, promotes opening.
Suivant une autre caractéristique, le logement cylindrique traverse le corps pour recevoir un bouchon engagé par la base du corps et délimitant un coussin d'air avec la coiffe surmoulée sur la tête en forme de tulipe. Le coussin d'air qui subsiste nécessairement entre le bouchon logé dans le fond du logement cylindrique et le coin de matière plastique surmoulée dans la couronne, permet le recul du coin en matière plastique à l'intérieur de la couronne et du logement cylindrique favorisant l'ouverture de la couronne à l'impact. Suivant une autre caractéristique, la couronne est fendue longitudinalement pour former des sortes de pétales favorisant l'ouverture et l'étalement de la colonne et l'augmentation de la section du projectile dans la cible.According to another characteristic, the cylindrical housing passes through the body to receive a plug engaged by the base of the body and delimiting an air cushion with the cap molded on the tulip-shaped head. The air cushion that necessarily remains between the plug housed in the bottom of the cylindrical housing and the plastic corner overmolded in the crown, allows the recoil of the plastic corner inside the crown and the cylindrical housing promoting the opening of the crown on impact. According to another characteristic, the crown is split longitudinally to form kinds of petals favoring opening and spreading of the column and increasing the section of the projectile in the target.
Suivant une autre caractéristique, le projectile comporte un épaulement formé par l'avant de la partie cylindrique, à la base du col.According to another feature, the projectile comprises a shoulder formed by the front of the cylindrical portion at the base of the neck.
Cet épaulement favorise l'accrochage de l'arrière de l'ogive surmoulée, d'autant plus qu'il peut comporter une gorge périphérique, par exemple de section triangulaire, interrompant la surface globalement tron- conique de l 'épaulement et favorisant l'accrochage de la coiffe au départ du coup et sur la trajectoire du projectile.This shoulder favors the attachment of the back of the overmolded warhead, especially since it may comprise a peripheral groove, for example of triangular section, interrupting the generally truncated surface of the shoulder and favoring the hooking of the cap at the start of the stroke and on the trajectory of the projectile.
Suivant une autre caractéristique avantageuse, la munition est perforante, la tête active étant en forme de pion conique relié au corps par un col. Cette tête conique a, de préférence, une forme de révolution engendrée par une génératrice curviligne globalement conique tournant autour de l'axe longitudinal du projectile. Cette forme ne gêne nullement la stabilité du projectile sur sa trajectoire puisque la coiffe favorise la pénétration dans l'air et se dégage au moment de l'impact. Selon l'invention, le corps du projectile, c'est-à-dire sa partie cylindrique de section circulaire et la tête qui le surmonte sont en une seule pièce en un métal tel que du cuivre ou du laiton, zinc, bronze, acier ou un mélange de particules frittées ou liées. Dessins La présente invention sera décrite ci-après de manière plus détaillée à l'aide de différents exemples de réalisation d'un projectile d'une munition selon l'invention, représenté schématiquement dans les dessins annexés dans lesquels :According to another advantageous characteristic, the ammunition is perforating, the active head being in the form of a conical pin connected to the body by a neck. This conical head preferably has a form of revolution generated by a generally conical curvilinear generatrix rotating about the longitudinal axis of the projectile. This shape does not interfere with the stability of the projectile on its trajectory since the cap promotes penetration into the air and emerges at the moment of impact. According to the invention, the body of the projectile, that is to say its cylindrical portion of circular section and the head which surmounts it are in one piece of a metal such as copper or brass, zinc, bronze, steel or a mixture of sintered or bound particles. Drawings The present invention will be described in more detail below with the aid of various embodiments of a projectile of a munition according to the invention, shown schematically in the accompanying drawings in which:
- les figures IA, IB montrent respectivement une vue en coupe d'un mode de réalisation et de sa variante d'un projectile terminé et d'un corps de projectile représentés respectivement dans les moitiés gauche et droite par rapport à l'axe du projectile,FIGS. 1A, 1B respectively show a sectional view of an embodiment and of its variant of a finished projectile and a projectile body represented respectively in the left and right halves with respect to the axis of the projectile. ,
- les figures 2A, 2B sont des vues analogues d'un autre mode de réalisation et de sa variante montrant le projectile avec sa coiffe et le corps du projectile coupé (figure 2B) et,FIGS. 2A and 2B are analogous views of another embodiment and its variant showing the projectile with its cap and the body of the cut projectile (FIG. 2B) and
- les figures 3A, 3B montrent deux autres modes de réalisation de projectile selon l'invention en vue en coupe,FIGS. 3A, 3B show two other projectile embodiments according to the invention in sectional view,
- la figure 4 montre un projectile THV connu,FIG. 4 shows a known THV projectile,
- la figure 5 montre un autre mode de réalisation d'un projectile perfo- rant.FIG. 5 shows another embodiment of a perforating projectile.
Description de modes de réalisation de l'inventionDescription of Embodiments of the Invention
Les différentes figures présentant l'invention et ses variantes ne montrent que le projectile de la munition sans représenter la douille et son chargement, qui correspondent à des caractéristiques habituelles non décrites ici.The various figures presenting the invention and its variants only show the projectile of the ammunition without representing the sleeve and its load, which correspond to usual characteristics not described here.
Les figures IA, IB montrent un premier mode de réalisation d'un projectile Pl formé d'un corps 100 muni d'une coiffe 120 ainsi qu'une variante 100A, respectivement présentés à droite et à gauche de l'axe XX du projectile. La description du mode de réalisation sera présentée ci- après dans la moitié gauche des figures IA, IB.FIGS. 1A, 1B show a first embodiment of a projectile P1 formed of a body 100 provided with a cap 120 as well as a variant 100A, respectively presented to the right and to the left of the axis XX of the projectile. The description of the embodiment will be presented hereinafter in the left half of Figs. 1A, 1B.
Pour la présentation de la partie droite de ces mêmes figures IA, IB, on utilisera les mêmes références que dans la partie gauche pour désigner les mêmes éléments. Ces éléments ne diffèrent de ceux de la partie gauche que par des variantes de forme aussi seront-ils repérés par les mêmes références affectées de la lettre A et leur description ne sera pas répétée, celle donnée à propos de la partie gauche convenant également pour la partie droite.For the presentation of the right part of these same figures IA, IB, we will use the same references as in the left part to designate the same elements. These elements differ from those of the left-hand side only by shape variants, so they will be marked by the same references assigned to the letter A and their description will not be repeated, the one given about the left-hand part also suitable for the right part.
Selon la figure IA, le projectile Pl au calibre du canon de l'arme se compose d'un corps métallique 100 de forte densité surmonté d'une tête active 1 10 couverte par une coiffe 120 en matière plastique. Le corps 100 en un métal ou en un alliage métallique ou un mélange de par- ticules frittées ou liées, non polluant autre que le plomb, a une forme cylindrique de section circulaire égale à celle du canon de l'arme auquel est destiné le projectile. La tête active 1 10 a une forme de révolution autour de l'axe XX du projectile telle qu'une couronne en forme de tulipe avec une entrée conique 1 1 1 centrée sur l'axe XX. La base de la couronne rejoint le dessus 1 16 du corps 100 par un col 1 12 délimitant un anneau 1 13, de section réduite reliant la tête 1 10 au corps. L'entrée conique 1 1 1 se poursuit à l'intérieur de la couronne par un logement cylindrique 1 14 de section circulaire arrivant pratiquement jusqu'au niveau du corps. Ce projectile peut être fabriqué de manière très économique par frappe à froid et reprise par le col et la refonte de la couronne.According to FIG. 1A, the projectile Pl at the caliber of the barrel of the weapon consists of a metal body 100 of high density surmounted by an active head 110 covered by a cap 120 of plastics material. The body 100 made of a metal or a metal alloy or a mixture of sintered or bonded particles, non-polluting other than lead, has a cylindrical shape of circular section equal to that of the barrel of the weapon for which the projectile is intended. . The active head 1 10 has a shape of revolution about the axis XX of the projectile such as a ring-shaped tulip with a conical inlet 1 1 1 centered on the axis XX. The base of the crown joins the top 1 16 of the body 100 by a neck 1 12 delimiting a ring 1 13, of reduced section connecting the head 1 10 to the body. The conical inlet January 1 continues inside the ring by a cylindrical housing 1 14 of circular section reaching substantially to the level of the body. This projectile can be manufactured in a very economical way by cold stamping and recovery by the neck and the remaking of the crown.
La forme de la génératrice engendrant la tête 1 10 par rotation autour de l'axe XX est légèrement différente à droite et à gauche. Pour la version à gauche, la tête 1 10 est plus longue que dans la version à droite HOA. La coiffe 120 en matière plastique appliquée et notamment surmoulée a extérieurement une forme d'ogive dans le prolongement du corps 100 et constituant une forme de révolution engendrée par une courbe tournant autour de l'axe XX. La section de la coiffe 120 perpendiculairement à l'axe XX ne dépasse pas la section du corps cylindrique. La coiffe 120 épouse le contour de la tête 1 10 et les différentes parties en relief. Elle s'appuie sur l'épaulement 1 1. De ce fait, la coiffe 120 n'a pas exactement la même forme intérieure que la coiffe 120A alors que le contour extérieur en forme d'ogive est le même.The shape of the generatrix generating the head 1 10 by rotation about the axis XX is slightly different to the right and left. For the version on the left, the head 1 10 is longer than in the version on the right HOA. The cap 120 made of plastic material and in particular overmolded externally has a pointed shape in the extension of the body 100 and constituting a form of revolution generated by a curve rotating about the axis XX. The section of the cap 120 perpendicular to the axis XX does not exceed the section of the cylindrical body. The cap 120 matches the contour of the head 1 10 and the various parts in relief. It relies on the shoulder 1 1. As a result, the cap 120 does not have exactly the same inner shape as the cap 120A while the outer contour shaped ogive is the same.
Intérieurement, la coiffe 120 pénètre dans l'entrée en forme d'entonnoir 1 1 1 ainsi que dans la partie cylindrique 1 14 et constitue une pièce fonctionnant comme un coin au moment de l'impact du projectile contre la cible comme cela a déjà été évoqué ci-dessus. Pour simplifier la description des modes de réalisation et des variantes, on utilisera ci-après les mêmes références que celles du premier mode de réalisation et de sa variante, références qui sont augmentées chaque fois de 100. Tous les éléments déjà décrits ne seront pas redécrits de façon détaillée ci-après. Cela concerne en particulier la variante de chacun des modes de réalisation.Internally, the cap 120 enters the funnel-shaped inlet 1 1 1 as well as in the cylindrical portion 1 14 and constitutes a coin functioning as a wedge at the moment of impact of the projectile against the target as it has already been mentioned above. To simplify the description of the embodiments and variants, the following references will be used hereinafter as those of the first embodiment and its variant, references which are increased by 100 each time. All the elements already described will not be redescribed. in detail below. This concerns in particular the variant of each of the embodiments.
Les figures 2A, 2B montrent un autre mode de réalisation P2 et une variante du projectile de la munition selon l'invention. Ce mode de réalisation P2 se distingue du précédent Pl en ce que le logement cylindrique 214 traverse le corps 200 pour recevoir par le dessous un bouchon 230 tel qu'un rivet, fermant une partie du logement pour laisser un coussin d'air 240 par rapport à la carotte 215 de matière plastique de la coiffe 220 qui pénètre dans le logement au moment du surmoulage par injection. Ce coussin d'air permet le recul de la partie de la coiffe injectée dans la couronne pour qu'au moment de l'impact, cette partie puisse reculer plus facilement et écarter la couronne pour l'étaler et augmenter la section.FIGS. 2A, 2B show another embodiment P2 and a variant of the projectile of the ammunition according to the invention. This embodiment P2 differs from the previous Pl in that the cylindrical housing 214 passes through the body 200 to receive from below a plug 230 such as a rivet, closing a portion of the housing to leave a cushion of air 240 relative with the carrot 215 of plastic of the cap 220 which enters the housing at the time of injection overmoulding. This air cushion allows the part of the cap injected into the crown to be pulled back so that at the moment of impact, this part can move back more easily and move the crown apart to spread it out and increase the section.
La figure 2B montre en coupe, les deux formes de réalisa- tion de ce corps de projectile sans la coiffe, avec ses deux variantes à droites et à gauche de l'axe XX.FIG. 2B shows in section, the two embodiments of this projectile body without the cap, with its two variants to the right and to the left of the axis XX.
Les figures 3A, 3B montrent deux autres modes de réalisation P3, P4 du projectile correspondant à une forme de corps cylindrique voisine de celles des figures IA, IB et des figures 2A, 2B avec un loge- ment 414 traversant pour former un coussin d'air 440 entre le bouchon 430 et le coin tronconique 415 de la coiffe 420 à l'intérieur de la couronne. La couronne 314, 410 est munie de fentes 318, 418 pour favoriser son ouverture.FIGS. 3A, 3B show two other embodiments P3, P4 of the projectile corresponding to a cylindrical body shape similar to those of FIGS. 1A, 1B and FIGS. 2A, 2B with a housing 414 passing through to form a cushion. air 440 between the plug 430 and the frustoconical corner 415 of the cap 420 inside the crown. The ring 314, 410 is provided with slots 318, 418 to promote its opening.
Les projectiles P1-P4 représentés aux figures 1A-3B sont destinés à une cible relativement molle par opposition à une cible dure. La caractéristique de ces projectiles est d'être très efficace dans une telle cible et de ne pas la traverser de part en part du fait de l'ouverture et de l'étalement de la couronne de la tête au moment de l'impact.The P1-P4 projectiles shown in Figures 1A-3B are intended for a relatively soft target as opposed to a hard target. The characteristic of these projectiles is to be very effective in such a target and not to pass through from one side due to the opening and spreading of the crown of the head at the time of impact.
Cet effet d'ouverture et d'étalement est provoqué par la dé- formation de la couronne 1 10-410 touchant l'impact et aussi l'effet de coin de la partie de la matière plastique 1 15-415 se trouvant dans l'entrée conique 1 1 1-41 1 et dans le logement cylindrique. Cet effet de coin est accentué dans le cas où il y a un coussin d'air 240, 440 à l'arrière de cette partie de matière plastique devant le bouchon 230, 430 du logement 214, 414 traversant le corps.This opening and spreading effect is caused by the deformation of the ring 1 10-410 affecting the impact and also the wedge effect of the part of the plastics material 1 15-415 found in the conical inlet 1 1 1-41 1 and in the cylindrical housing. This corner effect is accentuated in the case where there is an air cushion 240, 440 on the back of this part of plastic material in front of the plug 230, 430 of the housing 214, 414 passing through the body.
La figure 4 montre un type de projectile P5 selon l'invention ayant des caractéristiques perforantes. A titre de rappel, un projectile perforant THV, connu est représenté à la figure 4.FIG. 4 shows a type of projectile P5 according to the invention having perforating characteristics. As a reminder, a known THV perforating projectile is shown in FIG.
Selon la figure 5, le projectile se compose d'un corps 500 de forte densité en un métal ou un alliage métallique non polluant autre que le plomb tel que du cuivre ou du laiton. Le corps 500 a une forme cylin- drique de section circulaire égale à celle du canon de l'arme et il est surmonté d'une tête active perforante 510 en forme de pion tronconique en retrait par rapport au profil en ogive que l'on peut tracer à partir de la forme cylindrique circulaire du corps auquel il est relié par un col 512.According to Figure 5, the projectile consists of a body 500 of high density of a metal or a non-polluting metal alloy other than lead such as copper or brass. The body 500 has a cylindrical shape of circular section equal to that of the barrel of the weapon and is surmounted by an active perforating head 510 in the form of a frustoconical pawn set back from the ogival profile that can be trace from the circular cylindrical shape of the body to which it is connected by a collar 512.
Près du col, le corps comporte des gorges périphériques 501 et la tête 510 de forme tronconique est engendrée par une génératrice curviligne ; terminée par une pointe conique.Near the neck, the body has peripheral grooves 501 and the head 510 of frustoconical shape is generated by a curvilinear generatrix; terminated by a conical point.
La coiffe 520 surmoulée sur la tête 510 s'accroche par une liaison par la forme à ce pion tronconique au niveau de la base de la forme tronconique et du col 512. La coiffe 520 surmoulée a extérieurement une forme d'ogive dans le prolongement du corps 500 sans dépasser le contour du corps. La pointe de la tête 510 peut comporter une partie moletée 519.The cap 520 overmolded on the head 510 is hooked by a connection by the shape to this frustoconical pin at the base of the frustoconical shape and the neck 512. The cap 520 overmolded externally has a warhead shape in the extension of the 500 body without exceeding the outline of the body. The tip of the head 510 may comprise a knurled portion 519.
Ce projectile perforant P5 est réalisé en un métal dur, notamment en cuivre, en laiton, en un alliage ou en acier. Au moment de l'impact, la tête 510 a un effet perforant très efficace. La coiffe 520 est per- cée par la tête et le corps ; elle s'écarte sur le côté sans réduire l'efficacité. La coiffe 520 stabilise le projectile sur sa trajectoire en favorisant sa pénétration dans l'air. This perforating projectile P5 is made of a hard metal, especially copper, brass, an alloy or steel. At the moment of impact, the head 510 has a very effective perforating effect. The cap 520 is pierced by the head and the body; it deviates to the side without reducing efficiency. The cap 520 stabilizes the projectile on its path by promoting its penetration into the air.

Claims

R E V E N D I C A T I O N SR E V E N D I C A T IO N S
1°) Munition composée d'un projectile calibré à la dimension du canon de l'arme et d'une douille, caractérisée en ce que le projectile (P1-P5) comprend1) Ammunition composed of a projectile calibrated to the size of the barrel of the weapon and a socket, characterized in that the projectile (P1-P5) comprises
A- un corps de forte densité en un métal ou en alliage métallique non polluant autre que le plomb, ayant une forme cylindrique de section circulaire égale à celle du canon de l'arme, le corps étant surmonté d'une tête active (1 10-510) à forme de révolu - tion autour de l'axe (XX) du projectile, mais en retrait par rapport au profil en ogive,A- a body of high density of a non-polluting metal or metal alloy other than lead, having a cylindrical shape of circular section equal to that of the barrel of the weapon, the body being surmounted by an active head (1 10 - 510) in the form of revolution around the axis (XX) of the projectile, but set back with respect to the ogival profile,
B- une coiffe (120, 520) en matière plastique appliquée sur la tête (1 10, 510) et ayant extérieurement une forme d'ogive dans le prolongement du corps (100, 500) et dont la section perpendiculaire à l'axe du projec- tile ne dépasse pas la section du corps cylindrique (100, 500).B- a cap (120, 520) of plastic material applied to the head (1 10, 510) and having an externally ogival shape in the extension of the body (100, 500) and whose cross section perpendicular to the axis of the projective does not exceed the section of the cylindrical body (100, 500).
2°) Munition selon la revendication 1 , caractérisée en ce que la tête active (1 10, 410) est une couronne en forme de tulipe avec une en- trée conique (1 1 1 , 41 1) sur l'axe (XX) et un col ( 1 12, 412) de section réduite à la base de la tête (1 10, 410) à la jonction avec le corps (100, 400).2) Ammunition according to claim 1, characterized in that the active head (1 10, 410) is a tulip-shaped ring with a conical inlet (1 1 1, 41 1) on the axis (XX) and a neck (1 12, 412) of reduced section at the base of the head (1 10, 410) at the junction with the body (100, 400).
3°) Munition selon la revendication 1 , caractérisée en ce que l'entrée conique se poursuit par un logement cylindrique (1 14, 414) .3 °) Munition according to claim 1, characterized in that the conical inlet continues with a cylindrical housing (1 14, 414).
4°) Munition selon la revendication 3, caractérisée en ce que le logement cylindrique (214, 414) traverse le corps (200, 400) pour rece- voir un bouchon (230, 430) engagé du côté du corps (240, 440) et délimitant un coussin d'air (220, 420) avec la coiffe surmoulée sur la tête.4. Ammunition according to claim 3, characterized in that the cylindrical housing (214, 414) passes through the body (200, 400) to receive a body-side plug (230, 430) (240, 440). and defining an air cushion (220, 420) with the cap overmolded on the head.
5°) Munition selon la revendication 2, caractérisée en ce que la couronne (310, 410) est fendue longitudinalement (318, 418). 6°) Munition selon la revendication 1 , caractérisée en ce que le projectile comporte un épaulement formé par l'avant de la partie cylindrique, à la base de la tête sous le col (1 12, 412).5) A munition according to claim 2, characterized in that the ring (310, 410) is slotted longitudinally (318, 418). 6 °) Ammunition according to claim 1, characterized in that the projectile comprises a shoulder formed by the front of the cylindrical portion at the base of the head under the neck (1 12, 412).
7°) Munition selon la revendication 1 , caractérisée en ce que la tête active (510) est en forme de pion conique formant un col (512) à la jonction avec le corps (500).7 °) Ammunition according to claim 1, characterized in that the active head (510) is conical pin-shaped forming a neck (512) at the junction with the body (500).
8°) Munition selon la revendication 7, caractérisée en ce que la tête (510) a une forme de révolution engendrée par une génératrice curviligne globalement conique autour de l'axe longitudinal (XX) du projec- tile (P5). 8 °) Ammunition according to claim 7, characterized in that the head (510) has a form of revolution generated by a curvilinear generatrix generally conical around the longitudinal axis (XX) of projective (P5).
PCT/FR2009/050086 2008-02-14 2009-01-22 Munition WO2009101307A2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551630A3 (en) * 2011-07-28 2015-09-09 Karl-Heinz Eßmann Projectile de chasse en plusieurs parties à expansion partielle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR807100A (en) * 1935-09-24 1937-01-04 Perforating projectiles improvements
FR1401792A (en) * 1964-07-15 1965-06-04 Projectile for shotgun
FR1474596A (en) * 1966-04-05 1967-03-24 Bofors Ab Armor-piercing projectile
DE7321752U (en) * 1974-07-04 Rheinmetall Gmbh Non-lethal projectile
WO1993020402A1 (en) * 1992-04-02 1993-10-14 Olin Corporation Full metal jacket hollow point bullet
DE19930473A1 (en) * 1999-07-01 2001-01-04 Dynamit Nobel Ag Deformation floor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7321752U (en) * 1974-07-04 Rheinmetall Gmbh Non-lethal projectile
FR807100A (en) * 1935-09-24 1937-01-04 Perforating projectiles improvements
FR1401792A (en) * 1964-07-15 1965-06-04 Projectile for shotgun
FR1474596A (en) * 1966-04-05 1967-03-24 Bofors Ab Armor-piercing projectile
WO1993020402A1 (en) * 1992-04-02 1993-10-14 Olin Corporation Full metal jacket hollow point bullet
DE19930473A1 (en) * 1999-07-01 2001-01-04 Dynamit Nobel Ag Deformation floor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551630A3 (en) * 2011-07-28 2015-09-09 Karl-Heinz Eßmann Projectile de chasse en plusieurs parties à expansion partielle

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WO2009101307A3 (en) 2009-10-15
FR2927694B1 (en) 2012-12-07

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