EP0258125B1 - Unterkalibriges Pfeilgeschoss für Jagdpatrone mit verstärkter Endwirkungskraft in weichen Zielen - Google Patents

Unterkalibriges Pfeilgeschoss für Jagdpatrone mit verstärkter Endwirkungskraft in weichen Zielen Download PDF

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Publication number
EP0258125B1
EP0258125B1 EP87401851A EP87401851A EP0258125B1 EP 0258125 B1 EP0258125 B1 EP 0258125B1 EP 87401851 A EP87401851 A EP 87401851A EP 87401851 A EP87401851 A EP 87401851A EP 0258125 B1 EP0258125 B1 EP 0258125B1
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EP
European Patent Office
Prior art keywords
bullet
projectile
sheath
launcher
bullet body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87401851A
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English (en)
French (fr)
Other versions
EP0258125A1 (de
Inventor
Jean-Claude Sauvestre
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
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Individual
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Publication date
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Priority to AT87401851T priority Critical patent/ATE52613T1/de
Publication of EP0258125A1 publication Critical patent/EP0258125A1/de
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Publication of EP0258125B1 publication Critical patent/EP0258125B1/de
Anticipated expiration legal-status Critical
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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
    • 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

Definitions

  • the present invention relates to ammunition for small or medium caliber weapons and in particular ammunition for hunting weapons.
  • Document FR-A 2 599 828 describes, according to the preamble of claim 1, an ammunition comprising a bullet projectile sub-calibrated stabilized by tail and a detachable launcher.
  • the bullet claimed by this patent consists of at least three elements: a stabilizer generally made of plastic alloy, a very hard metal bar completely included in the bullet and a bullet body most often made of lead alloy.
  • the ball comprises at its front part at least one conical surface associated with fracture primers extending radially from the outside towards the axis of the ball.
  • Such a ball very effective on big game such as: mountain game (chamois and mouflon), medium-heavy animals (deer, deer, sika, deer and wild boar), heavy animals (deer with hair, adult wild boar), presents the disadvantage of being less effective on the deer considered to be the largest of the small game.
  • the aim of the present invention consists in the design of a ball capable of attacking small game with optimal terminal efficiency based on a capacity which is sensitive to the tender parts of the animal.
  • the invention therefore relates to ammunition for a small or medium caliber weapon and in particular for a hunting weapon, of the type comprising a projectile constituted by an under-calibrated bullet comprising a bullet body and a stabilizing stabilizer and propelled by a launcher at caliber of the weapon, characterized in that the bullet-launcher connection is ensured by means of a sheath extending the tail, said bullet body being constituted by several parts extending longitudinally and intended to separate during the impact after bursting of said sheath.
  • the bullet body, the launcher and the sheath have grooves and adents cooperating with each other so as to drive the ball and its empennage during the launching phase.
  • the ball-sheath body interface is substantially conical.
  • the bullet body further comprises a sub-projectile disposed on the longitudinal axis of the projectile, between the parts of the bullet body and the tail, the sub-projectile being able to comprise a male conical part. associated with a female conical part produced at the rear of the parts of the bullet body.
  • the bullet depicted in the figures listed above is a hunting bullet intended to be fired by a smooth-bore or lightly rifled 12-gauge weapon.
  • the elements 8 and 9 of the bullet body 7 comprise at their periphery circular grooves 13 intended on the one hand to ensure the mechanical strength of the bullet body 7 with respect to the sheath 11 during the acceleration phase of the projectile 3 in the barrel of the weapon and, on the other hand, to guarantee the mechanical connection on the trajectory between the stabilizing system 12 and the bullet body 7.
  • the stabilizer system 12 generally made of plastic alloy, is obtained by injection on the elements 8 and 9 of the bale body 7.
  • the sheath 11 of this stabilizer system has inside circular teeth 16 cooperating with the similar profile of the grooves 13 of the ball body 7 and, outside, circular grooves 17 which overlap in the grooves 13 of said ball body so that the thickness (a) of the sheath 11 remains substantially constant.
  • This thickness is also dimensioned so that it contributes favorably to the radial retention of the elements 8 and 9 of the bullet 7, this, essentially in the case of shooting from a weakly rifled weapon whose speed of rotation can reach dye 300t / s.
  • Said system stabilizer carries at its rear part stabilizer 6 to ensure good stabilization of the ball 4 on the trajectory.
  • a launcher 5 nesting around the ball 4 and consisting of two elements. This launcher allows the ball 4 to be launched at the desired speed and releases it as soon as it leaves the barrel.
  • a crimping of the star type 19, for example, makes it possible to maintain the projectile 3 in the case 1, the tail 6 being penetrated into the propellant powder 2.
  • FIG. 1B represents said ball on the trajectory.
  • Figure 1C shows the bullet 4 on impact on a weak or soft target.
  • the soft flesh of game accumulating on impact in the conical recess 14 of the elements 8 and 9 of the ball 4 generate couples F x 1 which tend to deviate by an angle from said elements, these the latter resting between them on a diametral line 20 situated at the rear of the diametral plane of separation of these said elements until the sheath 11 of the stabilizing system 12 is burst.
  • the elements thus released, progress separately in the next target trajectories essentially a function of the resistance of the environment encountered by each of them.
  • FIG. 2 represents a ball 4 in flight order composed of a stabilization system 12 and a ball body 7 comprising three elements: two elements 8 and 9 designed in an identical manner to those described above and a rear element said to be a sub-projectile 21.
  • This bullet the operation of which is represented by FIG. 2A, makes it possible to ensure a greater vulnering effect on the game thanks to the release of element 21 which, less braked in the flesh of the game that elements 8 and 9 will allow it to continue its race with a speed V following a fairly straight path.
  • Element 21 can be made of steel, of a lead alloy (for example harder than that used for elements 8 and 9) or any other metallic material. Said element comprises a groove 22 allowing its connection to the stabilizing system 12 and a front shoulder 23 ensuring its centering in the elements 8 and 9 of the bullet body 7.
  • Figure 3 shows another variant derived from the first described above because the element 21 is biconical in shape.
  • the value of the angle at the apex a 1 of the front cone 24 as well as the value of the angle a 2 of the conical recess 14 contribute, at equal impact velocity and at midpoint encountered, to the value of the angle a (FIG. 3A) of spacing of the elements 8 and 9 of the ball 4.
  • FIG. 4 shows another embodiment of the invention.
  • the bullet 4 comprises a stabilizer system 12 and a bullet body 7 comprising two elements 8 and 9, the rear portion 25 of which is conical. This ensures better bursting of the sheath 11 which further comprises at the front a weakening 26 thanks to a reduction in the thickness of the sheath 11.
  • FIGS. 5, 5A and 5B represent a bullet 4 provided with a system facilitating the bursting of the sheath on impact which comprises radial fracture primers 31 and longitudinal 29.
  • each element 8 and 9 of the ball has triangular parts 27 and 28 obtained during manufacture. These said parts are located in the diametrical plane of contact of the two elements ( Figure 5B).
  • the stabilizing system 12 obtained by injection, the material cooperates inter alia with the parts 27 and 28 of the elements 8 and 9 thus forming two initiators of rupture 31.
  • the longitudinal fracture primers 29 are obtained by molding grooves with a triangular profile, extending over all or part of the length of the sheath 11.

Claims (7)

1. Geschoß für durch eine Waffe kleineren oder mittleren Kalibers und insbesondere durch eine Jagdwaffe schießbare Munition, welches Geschoß aus einer durch einen dem Kaliber der Waffe entsprechenden Treiber (5) angetriebenen, unterkalibrierten Kugel (4) mit einem Kugelkörper (7) und einem stabilisierenden Leitwerk (6) besteht, dadurch gekennzeichnet, daß die Verbindung Kugel - Treiber über eine das Leitwerk verlängernde Hülse (11) gewährleistet wird, wobei der besagte Kugelkörper aus mehreren, sich der Länge nach erstreckenden Teilen (8, 9) besteht, welche bestimmt sind, beim beim Einschlag nach dem Bersten der besagten Hülse zu trennen.
2. Geschoß nach Anspruch 1, dadurch gekennzeichnet, daß der Kugelkörper, der Treiber und die Hülse Nuten und Zahneinschnitte (13, 16, 17, 18) aufweisen, die miteinander zusammenwirken, um das Mitnehmen während der Antriebsstufe zu bewirken.
3. Geschoß nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Grenzfläche Kugel - Hülse etwa kegelförmig ist.
4. Geschoß nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Kugelkörper au- ßerdem ein auf der Längsmittellinie des Geschosses zwischen den Teilen (8, 9) des Kugelkörpers und des Leitwerks angeordnetes Untergeschoß (21) aufweist.
5. Geschoß nach Anspruch 4, dadurch gekennzeichnet, daß das Untergeschoß (21) auf der Geschoßmittellinie einen einsteckbaren, kegelförmigen Teil (24) aufweist, der einem am hinteren Abschnitt der Teile (8, 9) des Kugelkörpers ausgebildeten steckempfangsbereiten, kegelförmigen Teil zugeordnet ist.
6. Geschoß nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Hülse Längs-und/oder Radialversprödungsbereiche (29, 31) aufweist.
7. Geschoß nach Anspruch 6, dadurch gekennzeichnet, daß der vordere Teil der Kugel Vorsprünge (27, 28) aufweist, welche mit den Versprödungsbereichen der Hülse zusammenwirken, um das Trennen Hülse - Kugel beim Einschlag zu erleichtern.
EP87401851A 1986-08-07 1987-08-07 Unterkalibriges Pfeilgeschoss für Jagdpatrone mit verstärkter Endwirkungskraft in weichen Zielen Expired - Lifetime EP0258125B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401851T ATE52613T1 (de) 1986-08-07 1987-08-07 Unterkalibriges pfeilgeschoss fuer jagdpatrone mit verstaerkter endwirkungskraft in weichen zielen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8611436A FR2602583B1 (fr) 1986-08-07 1986-08-07 Balle de chasse sous-calibree de type fleche a efficacite terminale accrue sur cibles molles
FR8611436 1986-08-07

Publications (2)

Publication Number Publication Date
EP0258125A1 EP0258125A1 (de) 1988-03-02
EP0258125B1 true EP0258125B1 (de) 1990-05-09

Family

ID=9338118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401851A Expired - Lifetime EP0258125B1 (de) 1986-08-07 1987-08-07 Unterkalibriges Pfeilgeschoss für Jagdpatrone mit verstärkter Endwirkungskraft in weichen Zielen

Country Status (6)

Country Link
EP (1) EP0258125B1 (de)
AT (1) ATE52613T1 (de)
DE (1) DE3762688D1 (de)
ES (1) ES2015960B3 (de)
FR (1) FR2602583B1 (de)
GR (1) GR3000697T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2786562B1 (fr) 1998-11-26 2001-02-09 Jean Noel Letellier Adaptateur pour balle sous calibree utilisee dans une arme a canon lisse
FR2834556A1 (fr) * 2002-01-10 2003-07-11 Michel Lenois Projectile destine au maintien de l'ordre, compose de deux hemi-projectiles identiques relies entre eux et se deployant a la sortie du canon pour tourner a la facon d'une helice d'avion
GB2502507B (en) * 2012-03-22 2014-10-15 Graham Ammunition Ltd Sabot for use in conjunction with a rifled barrel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60850C (de) * Firma J. P. SAUER & SOHN in Suhl, Thüringen Gewehr-Geschofs mit beim Aufschlag sich ausbreitenden Lappen
GB574579A (en) * 1943-06-23 1946-01-11 Western Cartridge Co Improvements in or relating to expanding projectiles
US2661694A (en) * 1950-05-12 1953-12-08 James E Allen Spreader panel bullet
FR1283366A (fr) * 1959-12-31 1962-02-02 Dynamit Nobel Ag Projectile spécial destiné à la chasse
US3941059A (en) * 1967-01-18 1976-03-02 The United States Of America As Represented By The Secretary Of The Army Flechette
FR2555728B1 (fr) * 1983-11-29 1987-03-20 Sauvestre Jean Claude Munition pour arme de chasse

Also Published As

Publication number Publication date
FR2602583A1 (fr) 1988-02-12
GR3000697T3 (en) 1991-09-27
DE3762688D1 (de) 1990-06-13
ATE52613T1 (de) 1990-05-15
FR2602583B1 (fr) 1990-08-03
ES2015960B3 (es) 1990-09-16
EP0258125A1 (de) 1988-03-02

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