EP3060875B1 - Cartridge - Google Patents

Description

The invention relates to a cartridge with a projectile and a rear-mounted on the bullet sleeve with a sleeve mouth at the front end, wherein the projectile has a tip and this tip on the rear side in a circumferential front guide band, which defines the projectile outer diameter passes, and immediately adjacent to this front guide band is arranged in the direction of the floor of the floor in the axial direction of the projectile extending circumferential sleeve mouth receiving space in the projectile, in which the sleeve mouth engages.

Such a projectile is from the EP 1 774 251 B1 known. NL 7203827 discloses a projectile sleeve connection for ammunition.

The invention has for its object to improve a cartridge according to the preamble of claim 1 so that when shooting the non-rotating bullet path is reduced to a minimum. Likewise, the gas pressure should be built up early. In addition, among other things, the sleeve mouth to the floor towards moisture of any shape to be sealed.

According to the invention, this object is solved by the features of claim 1.

Characterized in that between the front guide band and the sleeve mouth an extending in the axial direction of the projectile exposed portion of the Sülsenmundaufnahmeraums is arranged, ie the sleeve mouth does not completely fill the Sülmundmundaufnahmeraum towards the bow of the projectile, the front guide band is displaced forward toward the top, whereby the rotationless bullet path is reduced to a minimum. Besides that is
thereby creating a receiving space that can be filled with a sealing agent, whereby the sleeve mouth is sealed to the projectile against moisture of any shape.

According to the invention, the exposed section of the sleeve mouth receiving space is provided with a sealing means, such as e.g. a varnish sealed.

In one embodiment, the bullet tip passes ogivally or conically over one or more shapes into the leading guide band, i. on the bullet outside diameter over. Optimally, the transitional shape of the tip to the guide band on the guide band has a conical shape at the angle of the transition cone of the cartridge chamber. The increase to the outside diameter of the projectile thus reduces the non-rotating projectile path and builds up the gas pressure. The conical shape on the guide belt causes the centering of the projectile to Laufseelenachse. A centering thus produced causes a precision improvement.

The exposed portion of the sleeve mouth receiving space according to the invention goes straight into the front guide band and extends at an angle less than or equal to 16 degrees to the projectile axis. For aerodynamic reasons, this angle of ≤ 16 ° to the projectile axis is preferred. An embodiment is characterized in that from the radially lowest point in the sleeve mouth receiving space, ie the Feldmaßdurchmesser or smaller, the projectile shape in the direction of the rear concave, convex or rectilinear, over one or more forms, on the projectile diameter or smaller passes. The front guide band in the bullet outside diameter allows for a smaller design of the rear bullet, since this is not required for pressure build-up. It also reduces the running load (Friction resistance and associated warming, running deposits). At best, the bullet shape is designed to be suitable for sealing the mouth of the mouth to the bullet and for pinching the mouth of the bullet.

In one embodiment, a receiving space is arranged in the rear of the projectile, in which there is a substance that generates a tracer path upon initiation. It is then a tracer or a tracer cartridge.

In one embodiment, a bullet axis coaxial to the bullet axis is disposed in the bullet, which is open to the projectile nose and in the bore a bullet core of tungsten or tungsten carbide is disposed and the bore is closed by a bullet tip insert made of titanium or zirconium, wherein the outer shell of the bullet tip insert a part the top of the projectile is. It is then an API bullet (Armor Piercing Incendiary projectile = Panzerbrand) or API cartridge.

In principle, the embodiment with the guide band displaced to the front can be transferred to further types of projectile. Other bullet types are e.g. AP projectiles (armor piercing = armor-piercing projectiles), partial separation projectiles, full-shell projectiles, monoliths, deformation projectiles and others.

The invention will be explained in more detail with reference to figures.

FIG. 1a shows a cartridge 10 according to the invention and FIG. 1b a section A of FIG. 1a increased. FIG. 2 shows the projectile 11 according to FIGS. 1a and 1b but without sleeve 12. FIG. 3 shows in section a cartridge 10 according to the invention, inserted into a barrel 23 of a weapon. Like reference numerals also show the same subject matter and in all figures.

The cartridge 10 consists of a projectile 11 and a rearwardly mounted on the projectile 11 sleeve 12 with a sleeve mouth 13 at the front end, wherein the projectile 11 has a tip 1 and this tip 1 rear side in a circumferential front guide band 4, which the projectile outer diameter defined, passes. Immediately adjacent to this front guide band 4 in the direction of the floor 14 is a projecting in the axial direction of the projectile 11 circumferential sleeve mouth receiving space 15 in the projectile 11, in which the sleeve mouth 13 engages. Between the front guide band 4 and the sleeve mouth 13, an exposed partial section 16 of the sleeve mouth receiving space 15 is arranged which extends in the axial direction of the projectile 11. The sleeve mouth 13 therefore does not completely fill the sleeve mouth receiving space 15 in the direction of the nose of the projectile 11. The sleeve mouth 13 thus fills only a part of the sleeve mouth receiving space 15 and the remaining part is arranged outside the sleeve 12.

As a result of the forward guide band 4, which is also referred to below as the projectile outer diameter, on the projectile 11, the rotationally free projectile path during firing is reduced to a minimum. Likewise, the gas pressure is built up early by the front guide strip 4, whereby the possibility arises to make the area behind the front guide strip 4 smaller in diameter. Reducing the diameter reduces bullet friction in run 23. Less friction results in less heat energy. The heating of the barrel 23 is thus delayed in time. The precision is increased and retained longer. Due to the reduced bullet friction, the speed increases, creating a stretched trajectory. By the exposed portion 16 of the sleeve mouth receiving space 15 of the sleeve mouth 13 and a portion 7 of the sleeve mouth receiving space 15 can be easily sealed against moisture of any shape, for example by a paint in this exposed portion 16 of the sleeve mouth receiving space 15th

The bullet tip 1 can be round, flat or pointed.

The projectile nose 1 extends ogival 2 or conically over one or more forms, such as concave, convex or rectilinear 3 to the projectile outer diameter, or to the front guide 4. Optimally, the transition form of tip to the guide band on the guide band has a cone shape at the angle of the transition cone the cartridge warehouse. The conical shape on the guide belt causes the centering of the projectile to Laufseelenachse. A centering thus produced additionally causes a precision improvement.

The increase to the outside diameter of the projectile is supposed to reduce the non-rotating projectile path and build up the gas pressure. The bullet outside diameter or front guide band 4 is defined in each caliber over the largest permissible bullet diameter. In CIP member countries, this is the value for "G1" on "Patrons Maxi."

Deviating from the above-mentioned outside diameter, the defined maximum permissible projectile outside diameter is used in the military and government sector. The tolerance range at the front guide band 4 is - 0.1 mm to the permissible projectile diameter.

The projectile outer diameter or the axial extent of the front guide strip is held only briefly and runs for aerodynamic reasons slowly straight 5 expiring, to a diameter corresponding to Feldmaßdurchmesser 6 or smaller.

The distance between the foremost guide belt 4 and the Feldmaßdurchmesser 6 depends on the caliber with different transition lengths. However, the front guide band 4 is positioned so that as possible Little to no rotating bullet path is available. In this case, a distance between the sleeve mouth 13 and the foremost guide band 4 is essential.

The Feldmaßdurchmesser 6 at the lowest point of the sleeve mouth receiving space 15 is defined in each caliber. In CIP member countries, this is the value for "F" in "Cartridge Mini." Deviating from the above-mentioned field diameter 6, the minimum permissible field size is used in the military and government sector. The expiring form can be concave, convex or rectilinear. For aerodynamic reasons, an angle 9 of ≦ 16 ° to the projectile axis 17 is preferred. For radii, the angle of the resulting straight line between the front guide band 4 and the Feldmaßdurchmesser 6 is used.

From the field diameter 6 or smaller, the projectile shape is concave, convex or straight 7 toward the rear (see FIG. 1b ), via one or more shapes, on the bullet diameter. The bullet mold 7 is at best designed so that it is suitable for sealing the sleeve neck 24 and for pinching the sleeve 12.

The projectile 11 is cylindrical or provided with rear guide bands 8 in the region of the sleeve neck 24.

In a receiving space 19 in the rear of the projectile 11, a substance may be contained, which generates a tracer. In this case we speak of a tracer bullet.

Preferably in the projectile 11 (see FIG. 3 ) arranged a coaxial bore 17 to the projectile axis, which is open to the projectile nose 1 and is disposed in the bore 20, a projectile core 21 made of tungsten or tungsten carbide and the bore 20 is closed by a bullet tip insert 22 made of titanium or zirconium, wherein the outer shell of the bullet tip insert 22 is part of the tip 1 of the projectile 11.

Claims (5)

1. Cartridge (10) having a projectile (11) and a casing (12) which is drawn onto the projectile (11) from the rear and has a casing mouth (13) at the front end, the projectile (11) having a tip (1) and this tip (1) being inserted at the rear into a circumferential front guide band (4), which defines the outer diameter of the projectile, and directly adjacent to this front guide band (4) in the direction of the projectile base (14) there is arranged in the projectile (11) a circumferential casing mouth receiving space (15) which extends in the axial direction of the projectile (11), in which the casing mouth (13) engages, an exposed partial section (16) of the casing mouth receiving space (15) extending in the axial direction of the projectile (11) being arranged between the front guide band (4) and the casing mouth (13), so that the casing mouth (13) does not completely fill the casing mouth receiving space (15) towards the bow of the projectile (11), characterized in that the exposed partial section (16) of the casing mouth receiving space (15) is provided with a sealing means, such as a lacquer, and in that the exposed partial section (16) of the casing mouth receiving space (15) merges in a straight line at an angle less than or equal to 16 degrees to the projectile axis (17) into the front guide band (4).
2. Cartridge according to claim 1, characterized in that the cartridge tip (1) merges ogival (2) or conical via one or more forms into the front guide band (4) and onto the cartridge outer diameter.
3. Cartridge according to one of the claims 1 to 2 with a projectile diameter, characterized in that from the radially lowest point in the casing mouth receiving space (15), which corresponds to the field dimension diameter or smaller (6), the projectile shape changes in the direction of the rear concavely, convexly or rectilinearly (18), over one or more forms, to the projectile diameter or smaller.
4. Cartridge according to one of the claims 1 to 3, characterized in that a receiving space (19) is arranged in the rear of the cartridge (11), in which receiving space there is a substance which, when initiated, produces a tracer of light.
5. Cartridge according to one of the claims 1 to 4, characterized in that a bore (20) coaxial with the cartridge axis (17) is arranged in the projectile (11), which bore is open to the projectile tip (11) and a projectile core (21) made of tungsten carbide is arranged in the bore (20) and the bore (20) is closed by a projectile tip insert (22) made of titanium, the outer casing of the projectile tip insert (22) being part of the tip (1) of the projectile (11).

Images