DE3102734C2 - Device for recoil-free and low-signature firing of projectiles - Google Patents

Description

The invention relates to a device for the recoil-free and low-signature firing of Shot according to the genre specified in the preamble of claim I.

Such a device is known from DE-OS 21 40 875, for example. This takes care of in the course the projectile acceleration through the rear end of the launch tube emerging inert mass in connection with the simultaneous braking of the two sabot on the one in the area of the tube mouth or the rear end of the tube provided brake ring gen for the fact that no, at least only, on the launch tube minor recoils appear.

After the sabot has been slowed down by the brake rings, the muzzle and rear of the pipe are still there The end of the pipe is closed, so that it is betrayed if it is fired There are no fire jets and smoke development and no or only a slight noise occurs, d. H. a so-called signature-poor launch is guaranteed.

The longer the distance between the front sabot and the front brake ring, the longer it works Accelerating pressure on the projectile, d. H. the greater the exit speed of the projectile.

On the other hand, a long launch tube is a hindrance to storage and transportation, in particular in closed rooms, e.g. B. in an armored personnel carrier.

There is already a recoil-free, but not signature-poor launcher known, the launch tube is telescopic between the projectile and the muzzle, and indeed between one not ready to fire, pushed together storage and transport position and one ready to fire, pulled out Position, which makes preparing the launch tube a further, additional manual one Operation required (US-PS 31 22 059).

The invention, as it is characterized in the claims, is based on the object without Impairment of the readiness to fire and the effectiveness of the length of the generic launching device to reduce.

Of the two possibilities of the according to the invention Launcher, d. H. on the one hand between the propellant charge and the rear end and on the other hand Providing an inner tube between the propellant charge and the front end is the first option especially preferred. In this case, the inner tube forms part of the inert mass, i.e. H. the The inert mass to be ejected is determined by the mass of the inner tube with the associated rear brake ring proportionally reduced. This will add the total weight the launcher is reduced, as is the danger zone behind the shooter people staying there smaller.

A further reduction in the total weight is achieved with the single-sided rear telescopic version achieved in that the recoil-preventing inert mass is proportional to the greater acceleration distance is to decrease.

The invention is explained by way of example with reference to the drawing, the single figure of which is a Firing device shows whose rear, d. H. right section cut lengthways and the front one, d. H. left section is shown with partially cut away launch tube.

The launching device has a launching tube 1 in which between the muzzle and the rear end of the tube are arranged one behind the other in the axial direction in the ready-to-fire state:

a first, front brake ring 2.
the projectile to be shot 3.
a first, front sabot 4,
a propellant charge 5.
a second, rear sabot 6.
the inert mass 7 to be ejected as well as
a second, rear brake ring 8.

The rear sabot 6. the inert mass 7 to be ejected and the rear brake ring 8 are from an inner tube 9 was added.

At its end facing the propellant charge 5, the sabot 6 has a radial extension 10 which engages on a corresponding radial surface 11 of the inner tube 9. At the radial extension 10 the sabot 6 has a predetermined breaking point 12.

The projectile can be, for example, a guided or unguided missile. the Inert mass 7 to be ejected consists of a material which can be easily divided and has a high density, for example

from a pile of plastic papers.

At its rear end is the inside diameter of the launch tube 1 is reduced by an annular conical stop 13. The inner tube 9 has at its inner end adjacent to the propellant charge 5, a stop 14 which is connected by a the stop 13 of the launch tube 1 complementary conical outer diameter enlargement formed .5t. The outer diameter of the inner tube 9 corresponds to the inner diameter reduced by the stop 13 of the outer tube 1 and the outer diameter of the inner tube 9 expanded by the stop 14 deru! i! ii <.iiiiürchmesser of the outer tube 1, so that a Telescopic arrangement and guidance of the inner tube 9 in the outer tube 1 is guaranteed.

When the propellant charge 5 is ignited, the front sabot 4 moves with the projectile 3 in the direction on the muzzle, while the rear sabot 6 is in the direction of the rear pipe opening of the Outer tube 1 moves, where he first the inner tube 9 with the radial extension 10 ejected inert material 7 and the rear uremsring 8 takes with it until the stop 14 of the Inner tube 9 engages the stop 13 of the outer tube, causing the predetermined breaking point 12 to break comes, whereupon the rear sabot 6 ejects the inert mass 7 from the inner tube 9 and then is caught by the rear brake ring 8.

Due to the conical design of the stop 13 on the outer tube 1 and the complementary conical Formation of the stop 14 on the inner tube 9 is the surface pressure when the two conical surfaces touch reduced and the sealing surface increased.

1 sheet of drawings

Claims (3)

3t 02 patent claims: 1. Device for recoil-free and low-signature Firing of projectiles with a launch tube in which between the front and ή rear end a front brake, the projectile, a front sabot, a propellant charge, a rear sabot, an inert mass to be ejected as well as a rear brake ring are arranged axially one behind the other in the order mentioned, characterized in that in the ready-to-fire state in the launch tube (1) between the Propellant charge (5) and the rear end and / or between the propellant charge (5) and the front End of an inner tube (9) is arranged, which the rear sabot (6), the inert mass to be ejected (7) and the rear brake ring (8) or the front sabot (4), the projectile (3) and the front brake ring (2) receives, the or each sabot (6) with the associated Inirenrohr (9) is connected via a predetermined breaking point (12) and the or each inner tube (9) during ignition Can be moved telescopically out of the launch tube (1) and has a stop (14) at its inner end has, the projectile and Inertmasseaastritt of a stop (13) on the rear or front The end of the launch tube (1) is caught. 2. Device according to claim 1, characterized in that that the predetermined breaking point (12) on a radial extension (10) of the or each sabot (6) is formed, which acts on a radial surface (11) of the associated Ti inner tube (9). 3. Apparatus according to claim 1 or 2, characterized in that the or do stops (13) on Launching tube (1) through a conical inside diameter reduction that runs towards its rear or front end and the stop or stops (14) on the or each inner tube (9) by means of a complementary conical outer diameter enlargement is or are formed.