Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F42—AMMUNITION; BLASTING
  • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
  • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
  • F42B5/02—Cartridges, i.e. cases with charge and missile
  • F42B5/025—Cartridges, i.e. cases with charge and missile characterised by the dimension of the case or the missile
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F42—AMMUNITION; BLASTING
  • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
  • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
  • F42B5/02—Cartridges, i.e. cases with charge and missile
  • F42B5/067—Mounting or locking missiles in cartridge cases
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F42—AMMUNITION; BLASTING
  • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
  • F42B8/00—Practice or training ammunition
  • F42B8/02—Cartridges
  • F42B8/10—Cartridges with sub-calibre adaptor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F42—AMMUNITION; BLASTING
  • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
  • F42C19/00—Details of fuzes
  • F42C19/08—Primers; Detonators
  • F42C19/10—Percussion caps

Definitions

• the invention is in the field of armaments. Its purpose is ammunition for the practice of practice shooting and / or sport shooting, with a live fire weapon.
• a munition mainly comprises a case, or cartridge case, accommodating in an internal chamber a reserve of explosive.
• This explosive reserve is in contact with the rear face of a projectile, in particular a bullet or the like such as a syringe.
• This projectile is supported by the case at its anterior end which it extends axially.
• the explosive reserve is also in contact with a primer located at the rear end of the holster, this primer being intended to be struck by the striker of the weapon.
• the munition mainly comprises the case delimiting an interior volume forming a chamber for receiving an explosive reserve, this case receiving a series of elements for the chain operation of the ammunition, from its rear end towards its anterior end. This series of elements notably includes the primer, the explosive reserve and the projectile.
• the case of generally frustoconical conformation tapered at its anterior end, is usually formed of a thin brass barrel, to optimize the volume of the explosive receiving chamber with regard to the overall bulk of the ammunition .
• a problem posed resides in the use of a weapon arranged to receive a live-fire ammunition, for the practice of practice shooting and / or sport shooting.
• the object of the present invention is to provide ammunition for the practice of practice shooting and / or sport shooting, with an individual live-fire weapon.
• the invention relates to ammunition for the practice of practice shooting and / or sport shooting with an individual live-fire weapon which comprises a case defining an interior volume forming a chamber. reception of an explosive reserve, this case successively receiving a series of elements for the chain operation of the ammunition, from its rear end to its front end, comprising a primer, the explosive reserve and a projectile.
• This munition is characterized in that the volume of the internal chamber of the case is diametrically reduced so as to give the chamber a transverse dimension at most of the order of that of the rear face of the projectile.
• fig.1 is a schematic view of a munition of the prior art
• fig.2, fig.3, fig.4 and Fig.5 schematically represent ammunition according to various respective and preferred embodiments of the invention
• Fig.3A is a view, on a larger scale and in half-section, of a part of the ammunition of Figure 3
• Fig.6 is a view similar to Figure 3A for ammunition according to a fifth mode for carrying out the invention.
• a munition of the prior art comprises a case 1 which: a) supports a projectile 2 at its front end 3, b) delimits an interior volume forming a chamber 4 for receiving an explosive 5, c ) supports a primer 6 at its rear end 7.
• the wall of the case 1, made of brass is a thin wall providing an internal chamber 4 with a volume substantially equivalent to that of the overall outside of the case 1.
• the series of elements participating in the usual chain operation of the ammunition successively comprises the primer 6, the explosive 5 and the projectile 2.
• the case 1 is provided, at its end 3, with a one-piece collar 31 with the case 1 and which surrounds the projectile 2. This collar 31 makes it possible to effectively hold the projectile by interlocking.
• the case 1 is equipped, opposite the end 3, with a groove 11.
• a bead can be provided at the foot of the case 1.
• the case 1 has an outer shape generally in a truncated cone.
• the external shape of the case 1 is substantially the same as that of the case of FIG. 1.
• the reduction in the volume of the internal chamber 4 of the case 1 is also preferably a reduction in longitudinal dimension. This is compensated for by the interposition between any two at least of elements 6, 5, and 2, made distant, which participate in the series of elements for the chain operation of the ammunition, of positive connection means. between these two distant elements.
• the connecting means are constituted by an annex striker 8 interposed between the primer 6 and the rear end face 9 of the ammunition, against which the shock of the weapon striker.
• the intermediate striker 8 which transmits the action of the striker of the weapon to the primer 6, allows the approximation of the primer and the explosive.
• the sleeve 1 is provided, in the vicinity of its end 3, with a circular relief 32 which comes into engagement with a relief 22 of corresponding shape formed on the projectile 2.
• the relief formed on the projectile 2 is also circular.
• connection of the reliefs 22 and 32 which keeps the projectile in the case during the storage of the ammunition, is strongly reinforced by the pressure due to the closing of the weapon, just before firing , this by a wedge effect, because the end 3 bears on the frustoconical part of complementary geometry formed by the barrel of the weapon.
• the projectile 2 essentially comprises three parts, namely:
• a rear part 25 which carries the relief 22 intended to hold the projectile 2 in the case 1. This part is deformed during its passage through the barrel.
• the case 1 On a first part 12, the case 1 has a frustoconical external shape with a relatively large apex angle. On a second part 13, the holster is also tapered in external shape with a relatively small apex angle, which allows it to adapt to the chamber of the weapon.
• the case 1 On a third part 14, the case 1 is generally cylindrical with a circular section, which makes it possible to improve the elasticity of the case and to facilitate the deformation of the end 3 for the release of the projectile after the explosion of explosive 5. This cylindrical geometry also makes it possible to simplify the tooling for manufacturing cases and to accommodate the manufacturing tolerances of weapons and ammunition. This part also makes it possible to design a weapon with a barrel specific to this ammunition of low energy prohibiting the use of ammunition of real shooting.
• the case 1 is also provided with a shoulder 15 which facilitates the taking of the ammunition with the extractor of the weapon and facilitates the obtaining of the case by molding.
• the connecting means are constituted by the internal chamber 4 of the case 1, this constituting not only a chamber for receiving the explosive 5, but also a chamber for receiving the projectile 2 inside the case 1.
• the connecting means are constituted by a member 10 with axial extension extending the rear face of the projectile 2 towards the explosive reserve 5.
• the member 10 constitutes the tail of a syringe forming the projectile 2 and provided with a needle 2a. This embodiment relates to capture shots.
• the ammunition of the embodiments of Figures 4 and 5 have cases 1 of the same external geometry as that shown in Figure 2. They could also include cases of external geometry similar to that of the case of Figure 3. Alternatively , in the embodiments of Figures 4 and 5, the parts of the case 1 at which there is no explosive can be cylindrical
• the front end 3 of the case 1 can be equipped with a small collar facilitating the fitting of the projectile 2 into the case.
• the embodiments of FIGS. 2 to 4 are particularly suitable for most exercise shots and sport shots, in particular shots carried out for the preparation and examination of the French hunting license, these shots being carried out on moving targets .
• moving targets are used placed at greater distances from the shooter than in the case of moving targets.
• the mass of the projectile 2 is increased, which, as shown in FIG. 6, includes a metal part 26 and a part made of synthetic material 27 in which the part 26 is housed.
• a relief 22 is provided on the projectile to cooperate with a relief 32 of the front end 3 of the case 1.
• This variant with "heavy" projectile can also be used for live fire or hunting.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Portable Nailing Machines And Staplers (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Earth Drilling (AREA)
• Eye Examination Apparatus (AREA)

Applications Claiming Priority (5)

Publications (2)

Family

ID=26213248

Family Applications (1)

Country Status (6)

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Family Cites Families (21)

• 2002
  • 2002-08-21 FR FR0210456A patent/FR2831256A1/fr not_active Withdrawn
  • 2002-10-21 DE DE60205766T patent/DE60205766D1/de not_active Expired - Lifetime
  • 2002-10-21 US US10/493,399 patent/US20060096488A1/en not_active Abandoned
  • 2002-10-21 AT AT02790530T patent/ATE302933T1/de not_active IP Right Cessation
  • 2002-10-21 EP EP02790530A patent/EP1438546B1/de not_active Expired - Lifetime
  • 2002-10-21 WO PCT/FR2002/003601 patent/WO2003036221A1/fr not_active Application Discontinuation

Non-Patent Citations (1)

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