DE102012022683A1 - Mass lockable weapon locking system - Google Patents

Abstract

The invention relates to a mass-lockable weapon locking system (1) with a locking part (3) that can be slidably mounted in a locking housing (2) of a corresponding weapon and an elastic locking device (5) acting on the rear of the locking part (3). In order to ensure that the firing of powerful ammunition is not associated with any significant increase in the weight of the locking device (5), the invention proposes using a gas spring as the locking device (5). For this purpose, the breechblock housing (2) comprises a pneumatic cylinder (4) which extends in the direction of the barrel axis (100) of the weapon and in which the breechblock (3) is arranged as a sliding piston, the one extending behind the breechblock (3) at the rear, and cylinder area (5) filled with a gas forms the closing element acting as a gas spring.

Description

The invention relates to a mass-locking weapon locking system with a closure part that can be displaceably mounted in a closure housing of a corresponding weapon and an elastic closing element acting on the rear part on the closure part.

In automatic or semi-automatic weapons with mass lockable closure system, the weapon barrel of the corresponding weapon is closed at the rear by a closure member, wherein the closure member is slidably disposed in an axially adjacent to the weapon barrel closure housing of the weapon and an elastic closing element (Vorholer), in which it is usually an expensive special spring (closing spring) is acted upon (see, for example: Rheinmetall "weapons technical paperback", Dusseldorf, 7th Edition 1985, pages 248 f. ).

To shoot powerful ammunition you need in each case a strong closing spring in the known mass-locking locking systems. This leads when using long closing springs to increase the weight of the corresponding weapon, or the spring characteristic of the respective closing spring must have a steep increase in force. In addition, the closing springs are exposed in the known closure systems environmental influences and can easily pollute.

The invention has for its object to provide a mass-locking locking system, which ensures high reliability and which is also connected to the firing of powerful ammunition with no significant increase in weight of the Vorholers.

This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

The invention is based essentially on the idea to use as a prefetcher for the closure part no mechanical closing spring, but a gas spring.

For this purpose, the closure housing comprises a pneumatic cylinder extending in the direction of the bore axis of the weapon, in which the closure part is displaceably arranged as a sliding piston, wherein the cylinder area extending behind the closure part and filled with a gas forms the closing element acting as a gas spring, d. H. stores the energy required for the Vorholvorgang.

In order to be able to take into account changes in the ambient air pressure and / or the ambient temperature, a path-dependent adaptation of the characteristic curve of the gas spring can preferably be achieved by arranging at least one throttle opening in the cylinder wall of the pneumatic cylinder, through which part of the rearward and / or backward opening Forward movement of the closure member in the Vorholzylinder compressed gas can escape to the outside.

Advantageously, it may be provided that a plurality of throttle bores are arranged in the cylinder wall of the pneumatic cylinder and that an annular gap remains between the outer wall of the closure part and the inner wall of the pneumatic cylinder, wherein at least one of the throttle bore is arranged in the cylinder wall in the region of the annular gap.

The throttle bores may each be provided with an adjusting device such that they are opened or closed depending on the direction of movement of the closure part, the pressure level or the distance traveled by the closure part in a predetermined direction (flow, return).

The gas for the gas spring may be air.

Further details and advantages of the invention will become apparent from the following, with reference to figures explained embodiments. Show it:

1 the longitudinal section of a schematically illustrated weapon locking system according to the invention with a arranged in a weapon housing-closure part in its initial position;

2 this in 1 Shutter system shown after firing at the end of the return of the closure part and

3 this in 1 illustrated locking system during the flow to its starting position.

In the 1 to 3 is with 1 a mass-locking weapon locking system called which a closure housing 2 includes, which connects to the rear of the cartridge chamber of a gun barrel, not shown.

In the closure housing 2 is located in the direction of the tube soul axis 100 of the weapon barrel ( 1 ) axially displaceable closure part 3 , which also for reasons of clarity not shown, required for firing and removing the cartridge after firing elements required.

According to the invention, it is now provided that the closure housing 2 and the closure part 3 a pneumatic cylinder 4 form (pneumatic prefetchers), wherein the closure part 3 is designed as a sliding piston and air is used as gas.

The rear side behind the closure part 3 extending, and filled with air cylinder area 5 (Storage cylinder) of the pneumatic cylinder 4 forms a closing element acting as a gas spring.

To adapt the spring characteristic of the gas spring to the conditions of use of the weapon locking system 1 are in the sidewall 6 of the closure housing 2 several throttle openings 7 , through which for pressure relief during the displacement of the closure part 3 a portion of the compressed air from the closure housing 2 can escape to the outside. There are some throttle openings 7 also in the area of an annular gap 8th between the outer surface 9 of the closure part 3 and the inner surface 10 of the closure housing 2 arranged.

The throttle openings 7 can with the aid of adjustment devices, not shown, depending on the direction of movement of the closure part 3 , the pressure level or the path-dependent of the closure part in one direction (flow, return) are opened or closed.

Below is with the help of 1 to 3 closer to the operation of the weapon locking system according to the invention 1 received:
In the in 1 illustrated starting position of the closure system 1 is the closure part 3 in its forward position and is attached to a housing stop 11 fixed by a mechanism, not shown. In the storage cylinder 5 is ambient air.

When firing a (not shown) cartridge, the propellant gases act on the shock bottom 12 of the closure part 3 , This leads to an acceleration of the closure part 3 against the weft direction (in 2 with the arrow 110 indicated) and thus to a movement of the closure part 3 in the return direction.

The in the storage cylinder 5 Air is compressed and the pressure in the storage cylinder 5 increased, so that the closure part 3 is decelerated during its movement in the return direction.

If desired, through the annular gap 8th and the throttle openings 7 in the sidewall 6 of the closure housing 2 a pressure relief by escape of a portion of the compressed air from the closure housing 2 respectively.

After the return of the closure part 3 is completed ( 2 ), becomes the closure part 3 through the on his the storage cylinder 5 facing back 13 acting compressive force of the compressed air shifted back in the weft direction ( 3 ) until the closure part 3 has returned to its starting position ( 1 ).

As in the Vorholvorgang an increase in volume of the storage cylinder 5 takes place, the internal pressure of the closure housing 2 already correspond to the external air pressure before the closure part 3 has reached its starting position. It can in the last area of the flow of the internal pressure of the cylinder 5 fall below the ambient pressure of the air.

Nevertheless, even in such a case reaches the closure part 3 due to the inertia of the sealing compound and optionally by an additional flow device (not shown) its initial position ( 3 ). In addition, after reaching the starting position, there is a return flow of the ambient air into the storage cylinder 5 until the internal pressure in the storage cylinder 5 corresponds to the external air pressure.

The invention is of course not limited to the specific embodiment shown. Thus, it is not absolutely necessary for the pneumatic cylinder to act on the closure housing itself, but it may also be a separate cylinder arranged in the closure housing and connected thereto, in which the closure part is displaceably arranged as a sliding piston.

LIST OF REFERENCE NUMBERS

1

Weapons closure system

2

shutter housing

3

closing part

4

pneumatic cylinder

5

Cylinder area, storage cylinder, closing device

6

Side wall

7

throttle opening

8th

annular gap

9

outer surface

10

inner surface

11

housing stop

12

breech

13

back

100

Bore axis

110

Arrow (weft direction)

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• Rheinmetall "weapons technical paperback", Dusseldorf, 7th Edition 1985, pages 248 f. [0002]

Claims (5)

Mass lockable weapon locking system with a sliding in a closure housing ( 2 ) a corresponding weapon storable closure part ( 3 ) and a rear side on the closure part ( 3 ) acting elastic locking device ( 5 ), characterized in that the closure housing ( 2 ) in the direction of the tube axis ( 100 ) of the weapon extending pneumatic cylinder ( 4 ), in which the closure part ( 3 ) is arranged displaceably as a sliding piston, and that the rear side behind the closure part ( 3 ) extending and filled with a gas cylinder area ( 5 ) of the pneumatic cylinder ( 4 ) is designed as a gas spring. Weapon closure system according to claim 1, characterized in that in the side wall ( 6 ) of the pneumatic cylinder ( 4 ) at least one throttle opening ( 7 ) is arranged, through which a part of the by the rearward movement of the closure part ( 3 ) in the cylinder area ( 5 ) of compressed gas can escape to the outside. Weapon closure system according to claim 1, characterized in that in the side wall ( 6 ) of the pneumatic cylinder ( 4 ) several throttle openings ( 7 ) are arranged that between the outer surface ( 9 ) of the closure part ( 3 ) and the inner surface ( 10 ) of the pneumatic cylinder ( 4 ) an annular gap ( 8th ) remains, and that in the region of the annular gap ( 8th ) at least one of the throttle openings ( 7 ) in the side wall ( 6 ) of the pneumatic cylinder ( 4 ) is arranged. Weapon closure system according to claim 2 or 3, characterized in that the throttle openings ( 7 ) each with an adjusting device for opening and closing the cross section of the corresponding throttle opening ( 7 ) are provided. Weapon closure system according to one of claims 1 to 4, characterized in that it is the gas is air.

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