EP2923168A1 - Mass-lockable breech mechanism for a weapon - Google Patents

Abstract

The invention relates to a mass-lockable breech mechanism (1) for a weapon, with a breech part (3) that can be mounted movably in a breech casing (2) of a corresponding weapon and with an elastic closing element (12). In order that such a breech mechanism (1) has a high degree of functional reliability and in order to ensure that the firing of high-performance ammunition does not involve any significant increase in weight of the corresponding weapon, the invention proposes integrating the closing element (12) in the breech part (3). A hydraulic transmission, connected in series with the closing element (12) and likewise arranged in the breech part (3), achieves the effect here that the closing element (12) can be made very short and that the spring characteristic can have a gradually rising increase in force.

Description

 DESCRIPTION

Mass lockable weapon locking system

The invention relates to a mass locking weapon locking system with a lockable in a closure housing a corresponding weapon lockable part and an elastic closing element. In order to minimize the forces, a hydraulic brake integrated in the closure is installed. This changes the time course of the power transmission and thus reduces the amount of force acting on the shooter or a gun carriage or in the case of large-caliber weapons on the cradle. The brake decouples the movement of the closure from the movement of the weapon housing.

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 heavy closure part (closure block), wherein the closure part is slidably disposed in a locking housing of the weapon axially adjacent to the weapon barrel and by an elastic closing element (Vorholer), which is usually a closing spring, is acted upon (see, for example: Rheinmetall "Weapon Technique Paperback", Dusseldorf, 7th Edition 1985, pages 248 ff).

For firing powerful ammunition you need in the known mass-locking locking systems both a heavy lock block and a strong closing spring. 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-lock system, which ensures high reliability and which is also connected to the firing of high-performance ammunition with no significant increase in weight.

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

The invention is essentially based on the idea of integrating the closing element into or into the closure part. It is achieved by a connected in series with the closing element and also arranged in the closure part hydraulic translation that the closing spring can have a relatively small length and its characteristic only a relatively flat increase in force.

For the realization of the closure system according to the invention, the closure part is not designed as a solid closure block, but as a hollow cylinder, wherein the cylinder space is divided by an axially displaceable balance piston into two partial cylinder spaces. Here, in the direction of firing of the corresponding weapon, arranged on the rear side and filled with a brake fluid first Teilzylinderraum an axially displaceable piston is arranged, which is connected to a piston rod which passes axially through the rear wall of the closure member and at its the piston opposite end is connected to the closure housing. In the second part of the cylinder space, the elastic closing element is arranged, which holds the balancing piston in a starting position, such that when the closing part returns by the piston moving into the first partial cylinder space, the compensating piston is moved towards the closing element and the closing element is tensioned.

Since the closing element and the components of the hydraulic transmission components of the required anyway returning mass, an increase in the total weight of the corresponding weapon can be avoided.

In addition, the closure system according to the invention has the advantages that the closing element is well encapsulated and therefore environmental influences have only a small influence on this element. It has also been shown that this closure system has a high reliability and the clamping force of the closing element is very constant.

The closing element is preferably a compression spring, which is supported with its one end on the balance piston and with its other end on the front wall of the closure part.

Advantageously, the rear-side partial cylinder space together with the piston and the piston rod form a plunger cylinder (plunger cylinder), i. a cylinder in which the piston rod also serves as a piston, so that the cylinder is characterized by a simple and robust structure.

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

1 shows the longitudinal section of a schematically represented weapon locking system according to the invention with a closure part arranged in a weapon housing in its starting position;

Fig. 2, the closure system shown in Fig. 1, after firing at the end of the return of the closure member and

Fig. 3, the closure system shown in Fig. 1 during the flow to its original position.

In FIGS. 1 to 3, 1 denotes a mass-locking weapon locking system, which is arranged in a closure housing 2, which adjoins the rear of the cartridge chamber of a weapon barrel, not shown.

The weapon closure system 1 essentially comprises a closure part 3 which is axially displaceable in the closure housing 2 and which also contains the elements which are not shown for reasons of clarity and which are required for firing and removing the cartridge after firing. The closure part 3 is formed as a hollow cylinder, wherein the cylinder chamber 4 is divided by an axially displaceable compensating piston 5 in two partial cylinder chambers 6, 7.

The seen in the direction of firing of the corresponding weapon (indicated by the arrow 100), rear side arranged first partial cylinder chamber 6 is filled with a brake fluid (usually oil) 8. In addition, in the first part of the cylinder chamber 6, an axially displaceable piston 9 is arranged, which is connected to a piston rod 10. The piston rod 10 is guided axially through the rear-side wall 11 of the closure part 3 and is connected at its end facing away from the piston 9 with the closure housing 2.

As can be seen from the figures, the first partial cylinder space 6 together with the piston 9 and the piston rod 10 form a plunger cylinder.

In the second (front) partial cylinder space 7, an elastic closing element 2 is arranged, which is a closing spring in the form of a compression spring. The closing spring 12 is supported with its one end 13 on the balance piston 5 and with its other end 14 on the front wall (shock bottom) 15 of the closure part 3 from.

Hereinafter, the operation of the weapon closure system 1 according to the invention will be discussed in more detail with the aid of FIGS. 1 to 3:

In the illustrated in Figure 1 starting position of the closure system 1, the closure member 3 is in its forward position. In this case, the brake fluid 8 is biased in the first part of the cylinder chamber 6 by the closing spring 12 via the balance piston 5. With this pressure force over the surface of the cross section of the piston rod 10, this is pressed out of the closure part 3 and thus the closure part 3 against a stop 16 in the weapon housing 2.

When firing a (not shown) cartridge, the propellant charge gases act on the impact bottom 5 of the closure part 3. This leads to an acceleration of the closure member 3 against the weft direction and thus to a movement of the closure member 3 in the return direction. In this case, the pressure in the first partial cylinder space 6 increases due to the displaced volume of the retracting piston 9, so that the compensating piston 5 is displaced by the brake fluid 8 and the closing spring 12 continues to be tensioned.

After the return of the closure part 3 is completed (Fig. 2). the closure part 3 is displaced in the weft direction by the force of the closing spring 12 acting on the compensating piston 5 (FIG. 3) until it has again reached its starting position (FIG. 1).

As an elastic closing element can be used instead of, for example, the closing spring 12, an elastic rubber and / or plastic part (bulky) or a gas spring or compressible gas.

In the case of the use of rubber / plastic part of the balance piston 12 omitted in the form described, since then the brake fluid facing side of the rubber or plastic part can take over its function.

LIST OF REFERENCE NUMBERS

1 weapon locking system, locking system

2 lock housings

 3 locking part

 4 cylinder space

 5 balance piston

 6 (first) partial cylinder space

 7 (second) partial cylinder space

 8 brake fluid

 9 pistons

 10 piston rod

 1 1 wall

 12 closing element, closing spring

 13, 14 ends

 15 wall, bump

 16 stop

100 arrow (weft direction)

Claims

A mass-lockable weapon-locking system with a closure part (3) which can be displaced in a closure housing (2) of a corresponding weapon and an elastic closing element (12), with the features: a) the closure part (3) is designed as a hollow cylinder, the cylinder space (4 ) is divided by an axially displaceable balance piston (5) in two partial cylinder spaces (6, 7); b) the, seen in the firing direction of the corresponding weapon, rear side arranged first partial cylinder space (6) is filled with a brake fluid (8); c) in the first part of the cylinder chamber (6) an axially displaceable piston (9) is arranged, which is connected to a piston rod (10), the axially through the rear-side wall (1 1) of the closure part (3) passed and at her the piston (9) facing away from the end of the closure housing (2) is connected; d) in the second part of the cylinder chamber (7), the elastic closing element (12) is arranged, which holds the compensating piston (5) in an initial position, such that when the return part (3) by moving into the first part of the cylinder chamber (6) piston (9) the balance piston (5) to the closing element (12) pushed towards and the closing element (12) is tensioned. 2. Weapon closure system according to claim 1, characterized in that it is the closing element (12) is a compression spring, which with its one end (13) on the balance piston (5) and with its other end (14) on the front side Wall (15) of the closure part (3) is supported. 3. Weapon closure system according to claim 1 or 2, characterized in that it is the brake fluid (8) is oil. Weapon closure system according to one of claims 1 to 3, characterized in that the first partial cylinder space (6) together with the piston (9) and the piston rod (10) form a plunger cylinder. Weapon closure system according to one of claims 1 to 4, characterized in that the elastic closing element (12) is compressed gas, a gas spring or the like. Mass-lockable weapon locking system with a lockable in a closure housing (2) of a corresponding weapon storable closure part (3) and an elastic closing element (12), with the features: a) the closure part (3) is designed as a hollow cylinder, wherein the cylinder space (4) the elastic closure element (12), for example an elastic rubber and / or plastic part, is subdivided into two partial cylinder spaces (6, 7); b) the, seen in the firing direction of the corresponding weapon, rear side arranged first partial cylinder space (6) is filled with a brake fluid (8); c) in the second partial cylinder space (7), the elastic rubber and / or plastic part is arranged, which terminates at the end (14) of the second partial cylinder space (7).