GB2254403A

GB2254403A - Simulation cartridge for simulated firing using a laser beam gun.

Info

Publication number: GB2254403A
Application number: GB9106908A
Authority: GB
Inventors: Julian Equizabal Echevarria
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-02
Filing date: 1991-04-02
Publication date: 1992-10-07
Also published as: FR2674324A1; GB9106908D0; DE4134505A1

Description

2' 2 -5 44 33 1 SIMULATED PROJECTILE FOR SIMULATED FIRING USING A LASER

BEAM.

It is well known that the army and the police need to practice and carry out manoeuvres in order to train those persons using equipment either for warfare or as a deterrent.

In the case of automatic or semi automatic firearms, such as, machine guns, rifles, pistols and revolvers, practice methods using real ammunition are expensive.

In order to reduce this cost, a solution has been f ound by simulating firing using a laser beam but, experienced marksmen have been placed at a disadvantage in that, during this simulation, the firearm is not subject to any recoil or sound, nor is there suf f icient recoil energy to make use of the automatic operation facility provided by the firearm.

The applicant for this patent has sought to solve these problems by developing a new type of practice simulated projectile, this basically comprising a casing and a high explosive, but not including any bullet or any element capable of being projected.

The invention concerns a simulated projectile for simulated firing, which comprises a casing which is bored longitudinally and includes, on the inlet side of the bore, a percussion cap, the outlet of the bore being adapted to communicate with the orifice of the firearm barrel.

Figure 1 is a cross sectional view of the simulated projectile forming the invention. fitted into the barrel of a firearm.

The barrel of the f irearm (1) may comprise a conventional type of barrel, into which is incorporated a sealing plug (2), or, 2 if necessary, a barrel designed for the simulated projectile f orming the invention may be used, this comprising a one piece body which extends the barrel in order to provide the said sealing plug (2). The diameter (d) of the outlet orifice (5) of the firearm is considerably less than the diameter (D) of the simulated projectile.

Laser equipment (not shown) is fitted on the outside of the barrel (1).

The simulated projectile comprises a casing (3) which may be made of bronze, stainless steel or any other durable material. if it is required to retrieve and reload the casing (3) following each practice firing, and may be made from a plastic material if it is to be discarded following each practice firing.

The external form of the casing (3) includes an addition which forms a continuation of the external form, preferably, of a conventional casing (31) and a conventional bullet (32), it being possible to use the barrel (1) of a conventional firearm with its surfaces acting as stops (t) for the casing (31).

As the external form of the simulated projectile is similar to that of a real projectile, it is necessary to avoid the risk of confusion between them. For this purpose. the end of the sealing plug (2) is located, relative to the inlet side (e) of the barrel (1), at a distance (1) which is less than the length of a real projectile so that, if inserted by mistake, its head would be outside and it would not be possible to fire the weapon.

The casing (3) has a longitudinal bore (6) and a percussion cap (4) is positioned on the inlet side, its power considerably exceeding that corresponding to the calibre of the relevant conventional projectile. For example, in the case of projectiles for a semi automatic pistol, percussion caps 3 for mortar shells have been used, the bore communicating with the orifice (5) forming the outlet side of the firearm.

In order to facilitate the automatic ejection of the casing (3),, the outlet (8) of the orifice (6) of the casing is partially blocked by internal projections (7), forming an external surface (s) which facilitates the reaction forces relating to the external ejection of the simulated projectile.

Additional explosive material may be provided within the bore, for example, gunpowder which may be retained in the conventional manner.

The firing energy provided by the percussion cap (4) and. if applicable, by the gun powder results in a level of sound which is similar to that for conventional firing. together with a recoil energy and automatic operation of the firearm and a degree of conventional energy which, on being transmitted through the orifice (5) in the barrel, is capable of activating the laser used for simulated firing.

The casing (3) may be retrieved completely, and, with the addition of a new percussion cap (4) at a cost which is much less than that of a conventional bullet, the simulated projectile is again ready for use. If necessary, gun powder or any other conventional explosive may be added.

Preferably, the diameter (D,) on the outlet side of the bore of the simulated projectile exceeds the diameter (d) of the barrel orifice (5).

4

Claims

1. Simulated projectile for simulated firing, characterised in that it comprises a casing (3) which is bored (6) longitudinally, a percussion cap (4) being positioned on the inlet side of the bore (6), the outlet (8) of the bore (6).being adapted to communicate with the outlet orifice (5) of the firearm.

2. Simulated projectile for simulated firing, in accordance with the above claim, characterised in that the casing has an external form which is approximately that of the combined forms of a casing and a conventional bullet.

3. Simulated projectile for simulated firing, in accordance with any preceding claim, characterised in that the percussion cap has a power which considerably exceeds that of the corresponding percussion cap for a conventional firearm of the calibre used.

4. Simulated projectile for simulated firing, in accordance with any preceding claim, characterised in that, inside the simulated projectile, gunpowder and/or explosives are provided for the firing stage.

5. Simulated projectile for simulated firing, in accordance with any preceding claim, characterised in that the diameter of the outlet for the bore of the simulated projectile is greater than the diameter of the barrel outlet orifice.

6. Simulated projectile for simulated firing, in accordance with any preceding claim, characterised in that the diameter (d) of the outlet orifice (5) of the firearm is considerably less than the diameter (D) of the simulated projectile.

7. Simulated projectile for simulated firing, in accordance with any preceding claim, characterised in that the bore (6) of the casing (3) has a narrow section at its outlet (8).

8. Simulated projectile for simulated firing substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.