FR2771806A1 - Sub-calibre projectile firing shoe - Google Patents

Sub-calibre projectile firing shoe Download PDF

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Publication number
FR2771806A1
FR2771806A1 FR9715343A FR9715343A FR2771806A1 FR 2771806 A1 FR2771806 A1 FR 2771806A1 FR 9715343 A FR9715343 A FR 9715343A FR 9715343 A FR9715343 A FR 9715343A FR 2771806 A1 FR2771806 A1 FR 2771806A1
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France
Prior art keywords
polymer
ball
shoe
projectile
sub
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.)
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Application number
FR9715343A
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French (fr)
Inventor
Philippe Hamey
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Individual
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Individual
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Publication date
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Priority to FR9715343A priority Critical patent/FR2771806A1/en
Publication of FR2771806A1 publication Critical patent/FR2771806A1/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
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
    • F42B14/064—Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/34—Tubular projectiles
    • 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
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/62—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile
    • F42B12/625—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile a single submissile arranged in a carrier missile for being launched or accelerated coaxially; Coaxial tandem arrangement of missiles which are active in the target one after the other

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The shoe is made up of a conical metal component (1) with a ballistic role, and ejectable polymer wedges (3) or a core for the subcalibre round (2). The metal component is situated at the rear and the polymer wedges around the outside of the round or, in a variant of the design, the metal component is fitted inside a tubular round and a polymer core inside and behind it. The metal components made in the same way as a projectile insulated jacket - by stamping - with its weight, balance and characteristics determined by its thickness.

Description

Le présent brevet décrit undispositif permettant le tir d'un projectile sous-calibré accompagné d'un projectile duplex de plein calibre. This patent describes a device allowing the firing of an under-calibrated projectile accompanied by a full-caliber duplex projectile.

Les dispositifs en usage sont formés d'une cupule plastique de polymère synthétique qui dirige le projectile dans le canon puis est éliminée. The devices in use are formed by a plastic cup of synthetic polymer which directs the projectile into the barrel and is then eliminated.

Nous avons préalablement décrit un sabot balistique flottant (ItSI 9616339) composite polymère-métal, fonctionnant comme projectile duplex,balistiquement indépendant sans fragmentation ni expansion. We previously described a floating ballistic shoe (ItSI 9616339) polymer-metal composite, functioning as a duplex projectile, ballistically independent without fragmentation or expansion.

Le dispositif selon l'invention décrit également un projectile duplex mais le sabot estdivisé en une partie métallique (I) et des parties de polymère (3)et(4).  The device according to the invention also describes a duplex projectile but the shoe is divided into a metallic part (I) and polymer parts (3) and (4).

Le dispositif selon l'invention est décrit comme suit:
Le sabot a une forme générale de cupule autour de la balle.The device according to the invention is described as follows:
The hoof has a general shape of a cup around the ball.

Sa partie métallique (I) est le duplex effectif et forme un cône de plein calibre pénétrant ltarrière de la balle. Its metallic part (I) is the effective duplex and forms a full-size cone penetrating the rear of the bullet.

Sa partie polymère forme soit des cales éjectables (3) soit une bourre (4). Its polymer part forms either ejectable shims (3) or a flock (4).

La situation respective de ces pièces et ses deux variantes sont les suivantes:
Figure I cône à épaulement(I), derrière une balle (2) sous-calibrée à base creuse.The respective situation of these parts and its two variants are as follows:
Figure I shoulder cone (I), behind an undersized bullet (2) with a hollow base.

Figure 2 cône à épaulement (I), derrière une balle cylindrique (2). Figure 2 shoulder cone (I), behind a cylindrical ball (2).

Figure 5 Venturi conique (I) à ouvertures latérales, derrière une balle (2) sous-calibrée à base creuse. Figure 5 Conical venturi (I) with lateral openings, behind a sub-calibrated ball (2) with a hollow base.

Ce procédé permet la versatilité de deux calibres et de deux profils balistiques dans un même coup.  This process allows the versatility of two calibers and two ballistic profiles at the same time.

Les figures jointes illustrent le dispositif selon l'invention~
Il s'agit d'une section longitudinale du dispositif avec la balle et des variantes.The attached figures illustrate the device according to the invention ~
It is a longitudinal section of the device with the ball and variants.

Disposition selon la figure I - La pièce principalc du sabot forme un cône à épaulement, métallique(I)et agit comme projectile effectif:
l'extrémité arrière tubulaire de la pièce porte sur l'étui et le canon
ltextrémité avant effilée de la pièce pénétre la base creuse de la balle
Ce cône métallique peut être comblé par une bourre de polymère pour limiter la dilatation par les gaz d'explosion et les turbulences. La répartition de l'épaisseur permet l'équilibre.Arrangement according to figure I - The main part of the shoe forms a shoulder cone, metallic (I) and acts as an effective projectile:
the tubular rear end of the part bears on the holster and the barrel
the tapered front end of the workpiece enters the hollow base of the bale
This metal cone can be filled with a polymer flock to limit expansion by explosion gases and turbulence. The distribution of the thickness allows the balance.

- Plusieurs cales de polymères (3) forment la partie avant et ceinturent la balle (2). Elles permettent à la balle (2) d'être insérée ou sertie dans l'étui et dirigéedans le canon. La forme ogivale et la dureté de l'ensemble permettent le chambrage dans les armes automatiques.- Several shims of polymers (3) form the front part and surround the ball (2). They allow the bullet (2) to be inserted or crimped into the case and directed into the barrel. The ogival shape and the hardness of the whole allow the chambering in automatic weapons.

Les cales sont éjectées à la sortie du canon.The wedges are ejected at the exit of the barrel.

Variante selon la figure 2
L'aspect général et la structure de la partie métallique (I) du sabot sont identiques au précédent mais l'extrémité avant est plus longue.Variant according to figure 2
The general appearance and structure of the metal part (I) of the shoe are identical to the previous one, but the front end is longer.

Cette partie pénétre une balle (2) tubulaire du type'4ownitz dont la section et la balistique sont celltd'une balle pointue.This part penetrates a tubular ball (2) of the type '4ownitz whose section and ballistics are celltd'une pointed ball.

La face avant de la balle et du sabot est assez régulière pour en assurer le cambrage dans les armes automatiques.The front face of the bullet and the hoof is regular enough to ensure the camber in automatic weapons.

Une bourre (4) de polymère limite la dilatation par les gaz d'explosion.A polymer flock (4) limits the expansion by the explosion gases.

Variante selon la figure 3
La partie métallique principale (I) est un tube Venturi conique à ouvertures latérales autour d'une balle (2) saus-calibrée. Variant according to figure 3
The main metal part (I) is a conical Venturi tube with lateral openings around a saus-calibrated ball (2).

L'ensemble des deux a une surface antérieure régulière. The set of the two has a regular anterior surface.

Les deux bases sont creuses et coniques. Leurs surfaces de contact sont ajustées à glissement.The two bases are hollow and conical. Their contact surfaces are adjusted to slip.

La partie latérale du sabot comporte trois ouvertures. L'ensemble est ceinturé par des cales de polymère (5), certaines portant sur le sabot, les autres sur la balle (2) à travers les ouvertures du sabot. Les cales (3) du sabot évitent son serrage autour de la balle (2) dans le canon.The lateral part of the hoof has three openings. The assembly is surrounded by shims of polymer (5), some bearing on the shoe, the others on the ball (2) through the openings of the shoe. The wedges (3) of the shoe prevent it from being tightened around the bullet (2) in the barrel.

Ces cales (3) permettent à l'ensemble d'être inséré ou serti dans l'étui et dirigé dans le canon. Les cales (3) sont ensuite éjectées.These shims (3) allow the assembly to be inserted or crimped into the case and directed into the barrel. The shims (3) are then ejected.

La fabrication de la partie métallique (I) pricipale du sabot et identique à celle d'une chemise isolée de projectile. Elle est réalisée en principe par étampage. Usinée, elle peut être indéformable. The fabrication of the main metal part (I) of the hoof and identical to that of a projectile insulated shirt. It is made in principle by stamping. Machined, it can be undeformable.

Son épaisseur régis son poids, son équilibre et ses caractéristiques. Its thickness governs its weight, its balance and its characteristics.

Le type d'alliage et sa dureté régissent les propriétés d'expansion et de fragmentation qui permettent la conformité aux réglementations. The type of alloy and its hardness govern the expansion and fragmentation properties which allow compliance with regulations.

La fabrication des pièces de polymère est faite par moulage. The polymer parts are made by molding.

CedspositiP peut être appliqué aux diverses munitions pour fournir deux différents calibres et deux profils balistiques dans un même coup, ce qui leur apporte selon les cas:
I- Une versatilité tactique:
Le sous-calibre permet un tir soit tendu à longue portée, soit derrière un obstacle ou une protection balistique.CedspositiP can be applied to various munitions to provide two different calibers and two ballistic profiles at the same time, which brings them depending on the case:
I- Tactical versatility:
The sub-caliber allows a shot either taut at long range, or behind an obstacle or ballistic protection.

Le duplex permet un tir inhibant à courte portée.The duplex allows an inhibiting shot at short range.

2- Des effets vulnérants:
L'équilibre entre une pénétration controlée et un dépot d'énergie.2- Vulnerable effects:
The balance between controlled penetration and energy deposition.

L'faction des impacts hors de l'axe du tronc, transverses, distaux ou médiats.  The effect of impacts off the axis of the trunk, transverse, distal or mediate.

3-L'utilisation de l'excès d'énergie des projectiles lègers à haute vitesse d'arme de poing. En effet, la plus grande densité de section du projectile sous-calibré accroit la conservation d'énergie. 3-The use of excess energy from high speed handgun light projectiles. Indeed, the greater section density of the sub-calibrated projectile increases energy conservation.

4- Le chambrage automatique gràce à la forme d'ensemble et la dureté du projectile. 4- The automatic chambering thanks to the overall shape and the hardness of the projectile.

5- La conformité aux lois et reglementations par la nature et les propriétés du métal utilisé.  5- Compliance with laws and regulations by the nature and properties of the metal used.

Claims (6)

I) Dispositif permettant le tir d'un projectile sous-calibré et fonctionnant comme projectile duplex à balistique indépendante, caractérisé par la division du sabot en une partie métallique (I) et des parties de polymères (3) et (4). I) Device for firing a sub-calibrated projectile and functioning as a duplex projectile with independent ballistics, characterized by the division of the sabot into a metal part (I) and parts of polymers (3) and (4). REVENDICATIONS 2) Dispositif selon la revendication I, caractérisé par une pièce métallique conique (I) de plein calibre jouant un rôle balistisque. La construction de cette pièce est identique à celle des chemises de projectile. 2) Device according to claim I, characterized by a conical metal part (I) of full caliber playing a ballistic role. The construction of this piece is identical to that of the projectile shirts. 3) Dispositif selon les revendications I et 2, caractérisé par des pièces de polymère jouant le rôle de cales (3) éjectables pour le sabot ou la balle (2) ou jouant le roule de bourre (4). 3) Device according to claims I and 2, characterized by polymer parts acting as shims (3) ejectable for the hoof or the ball (2) or playing the roll of flock (4). 4) Dispositif selon les revendications précédentes, caractérisé par la situation respective des composants décrits: le cone métallique (I) à épaulement, est situé derrière, et les cales de polymères (3) sont situées autour d'une balle sous-calibrée (2). 4) Device according to the preceding claims, characterized by the respective situation of the components described: the metal cone (I) with shoulder, is located behind, and the polymer shims (3) are located around a sub-calibrated ball (2 ). 5) Dispositif selon les revendications I, 2 et 3, caractérisé en ce que le cône métallique (I) à épaulement pénétre une balle tubulaire (2) et une bourre de polymère (4) est située derrière le cône. 5) Device according to claims I, 2 and 3, characterized in that the metal cone (I) with shoulder penetrates a tubular ball (2) and a polymer flock (4) is located behind the cone. 6) Dispositif selon les revendica-ions I,2 et 3, caractérisé par un Venturi métallique conique (I) à ouvertures latérales autour d'une balle sous-calibrée (2). Les cales de polymère (3) portent sur le sabot et sur la balle à travers les ouvertures du sabot.  6) Device according to claims I, 2 and 3, characterized by a conical metallic Venturi (I) with lateral openings around an undersized ball (2). The polymer shims (3) bear on the shoe and on the ball through the shoe openings.
FR9715343A 1997-12-01 1997-12-01 Sub-calibre projectile firing shoe Withdrawn FR2771806A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9715343A FR2771806A1 (en) 1997-12-01 1997-12-01 Sub-calibre projectile firing shoe

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Application Number Priority Date Filing Date Title
FR9715343A FR2771806A1 (en) 1997-12-01 1997-12-01 Sub-calibre projectile firing shoe

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FR2771806A1 true FR2771806A1 (en) 1999-06-04

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862600A (en) * 1971-02-19 1975-01-28 Charles Thomas Tocco Multi-projectile assembly
US4709638A (en) * 1981-09-24 1987-12-01 Honeywell Inc. Discarding sabot projectile
US4982669A (en) * 1988-02-04 1991-01-08 Rheinmetall Gmbh Subcaliber discarding sabot projectile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862600A (en) * 1971-02-19 1975-01-28 Charles Thomas Tocco Multi-projectile assembly
US4709638A (en) * 1981-09-24 1987-12-01 Honeywell Inc. Discarding sabot projectile
US4982669A (en) * 1988-02-04 1991-01-08 Rheinmetall Gmbh Subcaliber discarding sabot projectile

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