FR2757267A1 - Personal Firearm cartridge - Google Patents

Personal Firearm cartridge Download PDF

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Publication number
FR2757267A1
FR2757267A1 FR9615533A FR9615533A FR2757267A1 FR 2757267 A1 FR2757267 A1 FR 2757267A1 FR 9615533 A FR9615533 A FR 9615533A FR 9615533 A FR9615533 A FR 9615533A FR 2757267 A1 FR2757267 A1 FR 2757267A1
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FR
France
Prior art keywords
warhead
bullet
cartridge
rotation
gases
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.)
Granted
Application number
FR9615533A
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French (fr)
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FR2757267B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9615533A priority Critical patent/FR2757267B1/en
Publication of FR2757267A1 publication Critical patent/FR2757267A1/en
Application granted granted Critical
Publication of FR2757267B1 publication Critical patent/FR2757267B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • F42B10/02—Stabilising arrangements
    • F42B10/26—Stabilising arrangements using spin
    • F42B10/28—Stabilising arrangements using spin induced by gas action

Abstract

The cartridge consists of a case (5) and a bullet (5), the case being equipped with spiral channels (2) so that it expels the powder gases on firing with a velocity which has both tangential and axial components, causing the bullet to rotate as it leaves the barrel. The rotation of the bullet can be enhanced by inclined surfaces on its rear face or by inner blind channels which coincide with the channels in the casing.

Description

L'invention concerne l'armement léger (armes d'épaules et armes de poings) et plus précisément le projectile et son système de propulsion, c'est à dire la cartouche compléte : la douille et la balle.The invention relates to light armament (long guns and handguns) and more precisely the projectile and its propulsion system, ie the complete cartridge: the casing and the bullet.

Si l'on ne tient pas compte de la conception du canon (lisse ou rayé), alors on peut dire que, jusqu'à présent la rotation de la balle sur son axe longitudinal est due essentiellement aux ailettes positionnées sur le projectile.If we do not take into account the design of the barrel (smooth or rifled), then we can say that, until now, the rotation of the bullet on its longitudinal axis is mainly due to the fins positioned on the projectile.

Celles-ci sont sollicitées par la mise en mouvement de ce dernier grâce à une explosion ayant créé une poussée des gaz vers la sortie du canon, et le tout sans aucune manipulation mécanique de la direction des gaz.These are requested by the setting in motion of the latter thanks to an explosion having created a thrust of the gases towards the exit of the barrel, and all without any mechanical manipulation of the direction of the gases.

Il est évident que la balle est en rotation lorsqu'elle passe de la vitesse VO à une certaine vitesse
Vx et qu'elle rencontre les gaz de l'atmosphère qui se trouvent aussi dans le canon
Cependant, la poussée des gaz créée par l'explosion n'intervient directement que dans le déplacement vers l'avant de la balle, ce qui n'est pas le cas dans sa mise en rotation car ce rôle est joué par les ailettes.It is obvious that the ball is rotating when it goes from VO speed to a certain speed
Vx and that it meets the gases of the atmosphere which are also in the barrel
However, the thrust of the gases created by the explosion is directly involved only in the forward movement of the bullet, which is not the case in its rotation as this role is played by the fins.

Pourtant, il est possible de faire intervenir directement les forces produites par l'explosion dans cette mise en rotation. Pour cela il faut modifier la douille et la balle qui forment un couple indissociable.However, it is possible to directly involve the forces produced by the explosion in this rotation. For this it is necessary to modify the socket and the ball which form an inseparable couple.

D'abord la douille doit recevoir une nouvelle étape, c'est à dire créer, en plus de la zone réservée à l'amorce, celle réservée à la poudre et celle réservée à l'emplacement de l'ogive, une zone où des couloirs seront positionnés en hélice afin de diriger les gaz avec une vitesse ayant une composante tangentielle et une autre axiale. Cette zone doit se situer évidemment entre la poudre et la balle.First the socket must receive a new step, i.e. create, in addition to the area reserved for the primer, that reserved for the powder and that reserved for the location of the warhead, an area where lanes will be positioned in a helix in order to direct the gases with a speed having a tangential component and another axial one. This area must obviously be between the powder and the ball.

Enfin, I'arrière du projectile doit être aménagé dans le but de canaliser ces forces du poussée et de mise en rotation et cela sans utiliser d'ailette différentes techniques sont possibles comme l'installation de plusieurs petites surfaces inclinées de façon à capter idéalement les énergies pour favoriser la rotation de l'ogive, ou encore creuser de petits tunnels borgnes dont les orifices coïncident avec ceux de sortie des couloirs de la douille et dont la fin forme un obstacle aux gaz et provoque également le déplacement rotatif exigé.Finally, the rear of the projectile must be arranged in order to channel these forces of thrust and rotation and this without using a fin different techniques are possible such as the installation of several small inclined surfaces so as to ideally capture the energies to favor the rotation of the warhead, or to dig small blind tunnels whose orifices coincide with those of exit from the corridors of the sleeve and whose end forms an obstacle to the gases and also causes the required rotary displacement.

La figure 1 est une vue de la douille selon l'invention.Figure 1 is a view of the socket according to the invention.

Les figures 2 et 3 sont des vues du projectile associé à la douille selon l'invention.Figures 2 and 3 are views of the projectile associated with the socket according to the invention.

En référence aux figures, la douille (5) comprend un emplacement pour l'ogive (1), des couloirs (2) dirigeant les forces issues de l'explosion, un emplacement pour la poudre (3) et un emplacement pour l'amorce (4).Referring to the figures, the socket (5) comprises a location for the warhead (1), passages (2) directing the forces resulting from the explosion, a location for the powder (3) and a location for the primer (4).

L'ogive (6) est formée d'une partie arrière préparée à recevoir ces forces, soit en y installant de petits tunnels borgnes (7), soit en y positionnant de petites plates-formes inclinées (8).The warhead (6) is formed of a rear part prepared to receive these forces, either by installing small blind tunnels (7) there, or by positioning small inclined platforms (8) there.

Cette cartouche doit être tirée dans une arme à feu à canon lisse afin de ne pas gener la rotation de la balle.This cartridge must be fired in a smooth-barreled firearm so as not to hinder the rotation of the bullet.

Les dessins des couloirs de la douille et de l'arrière de l'ogive peuvent être modifier dans le but de jongler avec les surpression et la vitesse de rotation. The designs of the bushing lanes and the back of the warhead can be modified in order to juggle the overpressure and the rotation speed.

Claims (2)

RE VENDICATIONSRE CLAIMS 1/ Cartouche avec projectile (6) pour armes à feu comportant une douille (5) associée à une.1 / Cartridge with projectile (6) for firearms comprising a cartridge case (5) associated with a. composante axiale.  axial component. destinés à diriger les gaz avec une vitesse axant une composante tangentielle et une intended to direct the gases with a speed focusing on a tangential component and a charge de poudre (3) caractérisée en ce que la douille (5) est munie de couloirs (2) en hélice powder charge (3) characterized in that the sleeve (5) is provided with helical passages (2) balle ou une ogive (6) mise en rotation par action des gaz produit par l'explosion de la bullet or a warhead (6) rotated by the action of the gases produced by the explosion of the surfaces inclinées (8) de façon à favoriser la rotation de l'ogive (6). inclined surfaces (8) so as to favor the rotation of the warhead (6). 2/ Cartouche selon la revendication 1 caractérisée en ce que I' ai'riêre du projectile est pourvu de 2 / cartridge according to claim 1 characterized in that the projectile is provided with (2) de la douille (5).  (2) of the socket (5). petits tunnel (7) borgnes dont les orifices coïncident avec les orifices de sortie des couloirs  small blind tunnel (7) whose openings coincide with the exit openings in the corridors 3i Cartouche selon la revendication 1 caractérisée en ce que l'ogive (6) est creusée à l'arrière de3i cartridge according to claim 1 characterized in that the warhead (6) is hollowed out at the rear of
FR9615533A 1996-12-13 1996-12-13 CARTRIDGE FOR FIREARMS Expired - Fee Related FR2757267B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9615533A FR2757267B1 (en) 1996-12-13 1996-12-13 CARTRIDGE FOR FIREARMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9615533A FR2757267B1 (en) 1996-12-13 1996-12-13 CARTRIDGE FOR FIREARMS

Publications (2)

Publication Number Publication Date
FR2757267A1 true FR2757267A1 (en) 1998-06-19
FR2757267B1 FR2757267B1 (en) 1999-02-05

Family

ID=9498781

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9615533A Expired - Fee Related FR2757267B1 (en) 1996-12-13 1996-12-13 CARTRIDGE FOR FIREARMS

Country Status (1)

Country Link
FR (1) FR2757267B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379531A (en) * 1970-11-18 1983-04-12 Manis John R Projectile
US4718348A (en) * 1986-05-16 1988-01-12 Ferrigno John E Grooved projectiles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379531A (en) * 1970-11-18 1983-04-12 Manis John R Projectile
US4718348A (en) * 1986-05-16 1988-01-12 Ferrigno John E Grooved projectiles

Also Published As

Publication number Publication date
FR2757267B1 (en) 1999-02-05

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Effective date: 20111202