DE102012022682A1 - A firearm with a mass-relievable sealant - Google Patents

Abstract

The invention relates to a barrel weapon with a mass-lockable locking system (1, 1 ') which comprises a locking housing (2, 2') with a locking part (3, 3 ') mounted therein so as to be displaceable. In order to achieve with such a barrel weapon that the recoil forces acting on the weapon carrier when a shot is fired are as low as possible, the invention proposes integrating a hydraulic brake (8, 8 ') into the locking part (3, 3') so that the time course the force transmission when a shot is fired changes in such a way that the amount of recoil force acting on the weapon carrier can be reduced.

Description

The invention relates to a gun barrel with a mass-lockable closure system, which comprises a closure housing with a closure part displaceably mounted therein and an elastic closure 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 guns 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 member is slidably disposed in a locking housing of the weapon axially adjacent to the weapon barrel and acted upon by an elastic closing element (Vorholer) is at. which is usually a closing spring (cf., for example: Rheinmetall "weapons technical paperback", Dusseldorf, 7th Edition 1985, pages 248 ff ).

Because when shooting. powerful ammunition relatively large recoil forces can occur, this leads to a heavy load on the recoil absorbing Waffenträgers, d. H. either the shooter or the gun carriage, if the weapon is rigidly connected to it.

Rebound brakes are known as such. That's how it describes DE 60 2005 000 575 T2 ( EP 1 591 742 B2 ) a hydraulic recoil brake, wherein the rod is fixed to a bottom piece sleeve and the brake body on the solid support of the weapon.

A weapon with recoil damping reveals the DE 10 2007 003 180 B4 , The recoil damping used herein acts between a frame assembly and a barrel assembly and is disposed axially between a bumper region of the barrel assembly and a support portion of the frame assembly.

Another weapon return system describes the DE 10 2009 039 548 A1 , This consists of a pressure vessel and a pressure cylinder with pressure piston. The gun barrel end is connected to the plunger cylinder for compressing a gas cushion in the impression cylinder. The pressure piston is designed so that when returning a large cross-section for the flow of the liquid and the pipe prefetching a small cross-section is open.

A hydropneumatic brake and Vorholsystem for pipe return protected is also the DE 10 2006 014 155 A1 removable.

The invention has for its object to provide a gun barrel with a mass-locking locking system, which should be as low as possible when firing on the weapon carrier recoil forces.

This object is achieved by the features of claim 1 and 3. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

The invention is based essentially on the idea to provide for the reduction of the forces on the weapon as high a returning mass with the longest possible return paths. It is intended to integrate a hydraulic brake in the closure part, so that the timing of the power transmission upon firing changed so that the amount of recoil force acting on the shooter or on the carriage, can be reduced. In this case, the movement of the closure part is decoupled from the movement of the closure housing by the hydraulic brake.

To realize the closure system according to the invention, the closure part is not designed as a solid closure block, but as a hollow cylinder with a front wall arranged in the weft direction and an axially opposite rear wall, wherein in the cylinder space of the hollow cylinder a brake cylinder filled with a brake fluid is arranged axially from the front wall extends to the vicinity of the rear wall of the hollow cylinder. The axially displaceable in the brake cylinder piston is connected to a piston rod which is passed through the rear wall of the hollow cylinder and connected at its end facing away from the piston with the closure housing. In addition, the cylinder space of the hollow cylinder is divided by a brake cylinder axially displaceable balance piston into two sub-cylinder spaces, where seen in the weft direction of the corresponding weapon, rear side arranged first part cylinder space also filled with the brake fluid and a gap-shaped opening with the front of the piston of the brake cylinder located cylinder space is connected. In the second part of the cylinder space, the elastic closing element is arranged, which holds the balance piston in an initial position, such that when returning the closing part by the piston moving into the first partial cylinder space of the Balancing piston moved towards the closing element and the closing element is tensioned.

The invention has the advantage that the integration of the brake and the closing element into the closure part makes the full component weight available as part of the mass of the closure part.

It is achieved by the connected with the closing element in series and also arranged in the closure part hydraulic translation that the closing spring can have a relatively small length and their characteristic only a relatively flat increase in force.

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. Furthermore, it has 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.

In an alternative embodiment, for example, large-caliber weapons an undivided cylinder chamber is used, in which there are a brake fluid and a balance piston. The compensating piston has at least one through-flow, through which the liquid can flow during the return of the closure part for compensation. Not shown here is the closing element for the flow.

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 closure system according to the invention a gun with a tube arranged in a closure housing closure member in its initial position;

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

3 this in 2 illustrated closure system at the end of the return and shortly before the start of the flow to its starting position,

4 - 6 a further embodiment of the brake system.

In the 1 to 3 is with 1 a mass-locking closure system of a gun indicates, which in a closure housing 2 is arranged, which adjoins the rear of the cartridge chamber of a gun barrel, not shown. It is denoted by the reference numeral 100 marked the soul tube axis of the corresponding weapon.

The closure system 1 essentially comprises a in the closure housing 2 axially displaceable closure part 3 which also contains the elements not shown for reasons of clarity, required for firing and removing the cartridge after firing.

The closure part 3 is designed as a hollow cylinder and has a weft direction (indicated by the arrow 110 ) arranged front wall 4 and an axially opposite rear wall 5 on.

In the cylinder room 6 of the closure part 3 is one with a brake fluid 7 (usually oil) filled brake cylinder 8th arranged, extending from the front wall (impact floor) 4 axially to the vicinity of the rear wall 5 of the closure part 3 extends.

One in the brake cylinder 8th axially displaceable piston 9 is with a piston rod 10 connected by the back wall 5 of the closure part 3 passed through and at her the piston 9 opposite end with the closure housing 2 connected is.

The cylinder space 6 of the closure part 3 is also by one on the outside of the brake cylinder 8th sliding compensating piston 11 in two partial cylinder chambers 12 . 13 divided, wherein, seen in the weft direction, rear side arranged first partial cylinder space (expansion tank) 12 also with the brake fluid 7 filled and over a slit-shaped opening 14 with the front of the piston 9 of the brake cylinder 8th located cylinder space 15 connected is.

In the second partial cylinder space 13 is a closing spring 16 arranged, which the balance piston 11 holds in a starting position.

Below is with the help of 1 to 3 closer to the operation of the closure 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 rests against the one in the lock housing 2 attached piston rod 10 backwards off. The brake fluid 7 in the first Part cylinder chamber 12 as well as in the cylinder room 15 of the brake cylinder 8th is by the closing spring 16 over the balance piston 11 biased.

When firing a cartridge (not shown), the propellant gases act on the front wall 4 (Shock bottom) of the closure part 3 , This leads to an acceleration of the closure part 3 against the weft direction and thus to a movement of the closure part 3 in the return direction ( 2 ). This will get the piston 9 further into the cylinder room 15 of the brake cylinder 8th , and the brake fluid 7 is through the slit-shaped opening 14 in the first partial cylinder space 12 pressed.

The resulting losses due to frictional flow within the brake fluid and the slow deceleration of the closure part 3 cause a damped transmission of forces on the closure housing 2 , In this case, part of the braking energy is converted into heat. The displaced volume of the piston rod 10 is due to a movement of the balance piston 11 in the closure part 3 compensated. This is the balance piston 11 from the brake fluid 7 against the spring element 16 pressed. That by the piston rod 10 displaced volumes in the first partial cylinder space 12 causes a displacement of the balance piston 11 , such that the closing spring 16 is stretched further.

After the return of the closure part 3 is completed ( 3 ), becomes the closure part 3 through the on the balance piston 11 acting force of the closing spring 16 moved in the firing direction until it has returned to its original position ( 1 ).

The 4 to 6 show a possible embodiment also for a closure system 1' with large-caliber weapons.

Shown is a closure part 3 ' in the lock housing 2 ' is arranged. This closure part 3 ' is as a hollow cylinder with a front wall arranged in the weft direction 4 ' and an axially opposite rear wall 5 ' designed and includes as a brake cylinder 8th' a cylinder space 6 ' with a brake fluid 7 ' , A small clearance in the closure part 3 ' serves to accommodate compensating springs 20 ' , In the closure part 3 ' integrated is a balance piston 11 ' that is connected to a piston rod 10 ' is appropriate. The piston rod 10 ' in turn is supported on the rear part of the closure housing 2 ' from. 4 shows the starting position within the closure system 1' , similar to the illustration in 1 , Upon firing the cartridge (not shown), the propellant gases act on the front wall 4 ' (Shock bottom) of the closure part 3 ' , This leads to an acceleration of the closure part 3 ' against the weft direction and thus to a movement of the closure part 3 in the return direction, as in 5 is shown. This will get the balance piston 11 ' further into the cylinder chamber of the brake cylinder 6 ' , and the brake fluid 7 ' gets through the opening 21 ' of the balance piston 11 ' inside the cylinder chamber 6 ' pressed ( 6 ).

LIST OF REFERENCE NUMBERS

1, 1 '

locking system

2, 2 '

shutter housing

3, 3 '

closing part

4, 4 '

front wall

5, 5 '

rear wall

6, 6 '

cylinder space

7, 7 '

brake fluid

8, 8 '

Brake cylinder, hydraulic brake

9

piston

10, 10 '

piston rod

11, 11 '

balance piston

12

(first) partial cylinder space

13

(second) partial cylinder space

14

slit-shaped opening

15

Cylinder space (brake cylinder)

16

Closing element, closing spring

100

Core tube 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 patent literature

• DE 602005000575 T2 [0004]
• EP 1591742 B2 [0004]
• DE 102007003180 B4 [0005]
• DE 102009039548 A1 [0006]
• DE 102006014155 A1 [0007]

Cited non-patent literature

• Rheinmetall "Waffentechnisches Taschenbuch", Dusseldorf, 7th Edition 1985, pages 248 et seq. [0002]

Claims (4)

Pipe weapon with a mass-lockable closure system ( 1 ), which a closure housing ( 2 ) with a displaceably mounted therein closure part ( 3 ) and an elastic closing element ( 16 ), having the features: a) the closure part ( 3 ) is designed as a hollow cylinder with a front wall arranged in the weft direction ( 4 ) and an axially opposite rear wall ( 5 ) educated; b) in the cylinder space ( 6 ) of the closure part ( 3 ) is one with a brake fluid ( 7 ) filled brake cylinder ( 8th ), extending from the front wall ( 4 ) axially to the vicinity of the rear wall ( 5 ) of the closure part ( 3 ) extends; c) one in the brake cylinder ( 8th ) axially displaceable piston ( 9 ) is equipped with a piston rod ( 10 ) connected by the rear wall ( 5 ) of the closure part and at its the piston ( 9 ) facing away with the closure housing ( 2 ) connected is; d) the cylinder space ( 6 ) of the closure part ( 3 ) is by a on the brake cylinder ( 8th ) axially displaceable balance piston ( 11 ) in two partial cylinder spaces ( 12 . 13 ), wherein seen in the weft direction of the corresponding weapon, rear side arranged first partial cylinder space ( 12 ) also with brake fluid ( 7 ) and via a gap-shaped opening ( 14 ) with the front of the piston ( 9 ) of the brake cylinder ( 8th ) cylinder space ( 15 ) connected is; e) in the second partial cylinder space ( 13 ) is the elastic closing element ( 16 ), which the balance piston ( 11 ) holds in a starting position such that when the closing part ( 3 ) through which into the first partial cylinder space ( 12 ) moving piston ( 9 ) the balance piston ( 11 ) to the closing element ( 16 ) and the closing element ( 16 ) is stretched. A gun according to claim 1, characterized in that it is in the closing element ( 16 ) is a compression spring, which with its one end to the balance piston ( 11 ) and with its other end on the front wall ( 4 ) of the closure part ( 3 ) is supported. Pipe weapon with a mass-lockable closure system ( 1' ), which a closure housing ( 2 ' ) with a displaceably mounted therein closure part ( 3 ' ), having the features: a) the closure part ( 3 ' ) is designed as a hollow cylinder with a front wall arranged in the weft direction ( 4 ' ) and an axially opposite rear wall ( 5 ' ) educated; b) the cylinder space ( 6 ' ) of the closure part ( 3 ' ) is equipped with a brake fluid ( 7 ' ), c) in the closure part ( 3 ' ) are a balance piston ( 11 ' ), which is connected to a piston rod 10 ' is attached, d) the piston rod ( 10 ' ) in turn at the rear of the closure housing ( 2 ' ) and e) the balance piston ( 11 ' ) at least one opening ( 21 ' ) having. A gun according to any one of claims 1 to 3, characterized in that it is in the brake fluid ( 7 ) is oil.

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