EP3379195A1 - Charging device for charging a pneumatic pressure accumulator and charging station with a plurality of such charging stations - Google Patents

Abstract

The invention relates to a loading device (50) for charging a pneumatic pressure accumulator (30) located in a loading position (56) of the loading device (50) with a compressed gas from a compressed gas source (52). The pressure accumulator (30) is designed to provide compressed gas for a firearm (1), which has been converted for practice purposes, to simulate a recoil of the firearm (1). The pressure accumulator (30) may, for example, be part of a converted magazine (12) of the firearm (1). It is proposed that the loading device (50) has an outlet opening (58) opening into the loading position (56) with a pneumatic valve (80) controlling the flow through the outlet opening (58). The pneumatic valve (80) is at the application of the compressed gas from the compressed gas source (52) and in the loading position (56) arranged pressure accumulator (30) in a flow position in which the compressed gas via the outlet opening (58) reach the pressure accumulator (30) can, and the pneumatic valve (80) when applying the compressed gas from the compressed gas source (52) and at any in the loading position (56) arranged pressure accumulator (30) in a shut-off position in which the outlet port (58) is gas-tight, so that no compressed gas can flow through the outlet opening (58). (Figure 2)

Description

The present invention relates to a loading device for charging a located in a loading position of the loading device pneumatic accumulator with a compressed gas from a compressed gas source. The pressure accumulator is designed to provide compressed gas for a firearm that has been converted for exercise or training purposes to simulate recoil of the firearm.

The invention also relates to a charging station for charging a plurality of pneumatic pressure accumulator with a compressed gas from a compressed gas source.

Due to the deadly dangers associated with the operation of weapons, extensive training in the handling and use of weapons is required. Such training usually involves firing blanks or real ammunition. The noise of charging, the waste of spent cartridges, harmful residues of burnt gunpowder, repeated reloading, environmental restrictions, high costs, and the inherent danger of using firearms are all significant disadvantages of using blanks or real ammunition.

To overcome these disadvantages, so-called weapon simulators have been created which simulate the firing of weapons. This firearms are used, which have been converted for practice purposes. The weapon simulators are mainly used in the military environment. From the US 4,302,190 For example, a rifle recoil simulator is known in which compressed air passes through openings in the gun barrel to move the rifle barrel upward in a simulated recoil motion. A switch on the trigger activates an electromagnetic pneumatic valve to control the flow of air to the openings in the gun barrel. In this prior art so is the Recoil not simulated by a reciprocating shutter, but solely by a controlled airflow.

Furthermore, from the WO 2004/015357 A2 a converted firearm for a weapon simulator, in which a reciprocable closure is pneumatically triggered by compressed air when the trigger is actuated. This should be possible as realistic as possible use of the converted firearm. Since the converted firearm usually does not shoot any ammunition, it lacks a firing triggered by the firing of the ammunition and a consequent back-and-forth motion of the shutter. The recoil can be simulated by the well-known converted firearm. To realize the pneumatic movement of the closure, a pneumatic pressure accumulator is contained in the known firearm from which air can escape via electromagnetically actuated pneumatic valves when the trigger is actuated and can be used for reciprocating the closure.

Finally, from the WO 98/14745 A1 and the EP 1 262 728 A1 Hand-held weapons adapted for training purposes are known in which the pneumatic pressure accumulator, in which compressed gas is stored for actuating the device for simulating a recoil of the weapon in the event of firing a shot, is part of a rebuilt magazine. The remodeled magazine is purely external to a real magazine in which to fire from a real firearm Cartridges are included, very similar. Just as a real magazine can be inserted into a magazine receptacle in the handle portion of a real firearm, the converted magazine can be inserted into a magazine receptacle in the handle portion of a converted firearm and releasably secured therein. The accumulator includes a certain amount of pressurized gas, so that with the rebuilt firearm a certain number of shots can be delivered. With each fired shot, a portion of the compressed gas stored in the pressure accumulator is discharged into the recoil simulation apparatus. When the maximum possible number of shots is reached, the accumulator must be recharged, which can be done with a trained loader.

The rebuilt magazine with the pneumatic pressure accumulator has an outlet opening, via which the magazine inserted into the magazine receptacle in the grip section of the converted firearm or the pneumatic pressure accumulator contained therein is connected to the device for simulating a recoil of the firearm. The outlet opening of the rebuilt magazine is associated with a check valve which automatically closes the outlet opening as soon as the magazine is removed from the magazine receptacle and releases the outlet opening as soon as the magazine is fully inserted into the magazine receptacle.

In addition to the outlet opening, the converted magazine has an inlet opening over which the pneumatic Accumulator can be filled with compressed gas. The inlet opening of the rebuilt magazine is preferably associated with a check valve which automatically closes the inlet opening as soon as the magazine no longer has a connection to a compressed gas connection of a compressed gas source or no compressed gas flows to charge the pressure accumulator and releases the inlet opening as soon as the magazine is connected to a compressed gas connection a compressed gas source is connected and compressed gas flows to charge the pressure accumulator.

If the rebuilt magazine for charging the pneumatic pressure accumulator with compressed gas is arranged in a loading position of a loading device, first a pneumatic connection between the outlet opening of the loading device and the inlet opening of the pneumatic accumulator must be established. This is done in the prior art usually by means of a compressed air or hydraulic coupling. With these, however, the production of the pneumatic connection is relatively expensive.

Furthermore, it has simultaneously shown in charging stations with a variety of charging devices for charging multiple pressure accumulator that not always the loading positions of all charging devices of the charging station are occupied by a pneumatic pressure accumulator to be charged. Since the pressure gas flow from the compressed gas source to the individual charging devices of the charging station for cost reasons is usually only controlled in common for all charging devices, care must be taken that in those Charging devices, in the loading positions no accumulator pressure accumulator are arranged, when activating the pressure gas flow no compressed gas can escape uncontrolled. Suitable compressed air or hydraulic clutches and high-pressure pneumatic valves, which can withstand the high pressures of the compressed gas from the compressed gas source of about 250 to 300 bar, but are very expensive.

In general, it can be said that the complex, time-consuming and expensive "recharging" of the pneumatic pressure accumulator is problematic in the known rebuilt firearms. The present invention is therefore an object of the invention to provide a way to make the "recharge" a pneumatic accumulator easier, faster and cheaper.

To solve this problem, a loading device with the features of claim 1 is proposed. In particular, a loading device of the type mentioned is proposed, which has an opening into the loading position outlet opening with a flow through the outlet opening controlling pneumatic valve. The pneumatic valve is in the application of the compressed gas from the compressed gas source and arranged in the loading position pressure accumulator in a flow position in which the compressed gas can pass through the outlet opening in the pressure accumulator. The pneumatic valve is in the creation of the pressurized gas from the pressurized gas source and at no arranged in the loading position pressure accumulator in a shut-off position in which the outlet opening gas-tight is closed, so that no compressed gas can flow through the outlet opening.

The invention thus proposes a simply constructed pneumatic valve which automatically closes the outlet opening if pressurized gas is applied and there is no pressure accumulator to be charged in the loading position of the loading device. When in the loading device, a pneumatic pressure accumulator, for example. As part of a converted magazine for a converted firearms for training purposes, in the loading position, the pneumatic valve is in the flow position. Although the pneumatic valve is urged by the compressed gas from the pressurized gas source in the direction of the shut-off position, but located in the loading position pressure accumulator is a mechanical stop, which prevents movement of the pneumatic valve in the shut-off position. Thus, a pressure accumulator located in the loading position of the loading device can be loaded with compressed gas in the flow position of the pneumatic valve.

According to an advantageous development of the invention, the pneumatic valve has a valve body which, in its shut-off position, projects into the loading position of the loading device and does not protrude into the loading position of the loading device in its flow-through position. When arranged in the loading position pressure accumulator so the valve body is in an attempt to move due to the applied pressure gas of the compressed gas source in the shut-off position, against the in the loading position located pneumatic accumulator encounter and would be prevented from moving into the shut-off position. The valve body remains in the flow position and the pneumatic pressure accumulator can be filled with compressed gas.

It is conceivable that after switching off the compressed gas source, so if no compressed gas is applied to the pneumatic valve, the pneumatic valve or the valve body arrives in a rest position in which it is retracted further from the loading position of the loading device as in the flow position. This allows easy insertion and removal of the pneumatic accumulator in the loading position of the loading device. Only by switching on the compressed gas source, so if compressed gas is applied to the pneumatic valve, the pneumatic valve or the valve body is moved to the flow position. When a pneumatic pressure accumulator is located in the loading position of the loading device, the valve body approaches the pressure accumulator and comes to this with a stop surface, which is formed at a distal end of the valve body, for conditioning. At this stop surface at the distal end of the valve body, the outlet opening of the charging device is preferably formed. At a location corresponding to the stop face of the valve body, the pressure accumulator located in the loading position has an inlet opening. In the flow position of the valve body so a pneumatic connection between the outlet of the Charging device and the inlet opening of the pressure accumulator made over which the compressed gas flows to charge it accumulator. If no pressure accumulator is located in the loading position of the loading device, the valve body automatically moves beyond the flow position to the shut-off position.

According to a preferred embodiment, the pneumatic valve has a spring element, which counteracts a movement of the valve body by the application of compressed gas from the compressed gas source from the flow position into the shut-off position. The spring element presses the valve body when the compressed gas source is switched off or, if the compressed gas supply is interrupted, back into the flow position or, if present, further into the rest position. The spring force of the spring element is thus opposite to the force that results when a force acting surface of the valve body with the compressed gas from the compressed gas source.

Advantageously, the valve body has a transverse bore extending in the radial direction through the valve body and a longitudinal bore which branches off from the latter and opens into the outlet opening, through which the compressed gas flows in the flow-through position of the pneumatic valve. The outlet opening is formed in this case on a stop surface at a distal end of the valve body, which projects in the shut-off position in the loading position of the loading device. The abutment surface of the valve body with the outlet opening is against a corresponding surface of the pneumatic accumulator pressed with the inlet opening and comes there flat to the support. Between the abutment surface of the valve body and a corresponding surface of the pressure accumulator preferably acts an annular sealing element, which brings in the flow position of the valve body, the outlet opening of the charging device and the inlet opening of the pressure accumulator gas-tight in combination.

Since an actuation of the pneumatic valve with the compressed gas from the compressed gas source causes a movement in the flow position and / or a transition from the flow position to the shut-off, the effective area of the valve body which is acted upon by the compressed gas, must be calculated exactly. The compressed gas for filling the pneumatic pressure accumulator is at about 250 to 300 bar. If the effective area is too small, the valve body or a stop surface formed at its distal end with the outlet opening therein is not pressed firmly enough against the corresponding surface with the inlet opening of the pneumatic accumulator, so that the connection between the outlet opening of the charging device and the Inlet opening of the accumulator is not gas-tight and compressed gas can escape. If the effective area is chosen too large, the forces acting on the valve body when pressurized gas are applied are so great that, when changing over from the passage position to the shut-off function (if no pressure accumulator is arranged in the loading position) is), the entire pneumatic valve or parts thereof can be torn from the loader.

Figur 1

eine umgerüstete Schusswaffe zur Verwendung in einem Waffensimulator;

Figur 2

eine erfindungsgemäße Ladevorrichtung zum Aufladen eines pneumatischen Druckspeichers eines umgebauten Magazins der umgerüsteten Schusswaffe aus Figur 1;

Figur 3

die Ladevorrichtung aus Figur 2 mit einem eingesetzten Magazin;

Figur 4

eine erfindungsgemäße Ladestation mit mehreren Ladevorrichtungen zum Aufladen von pneumatischen Druckspeichern mehrerer umgebauter Magazine für umgerüstete Schusswaffen gemäß Figur 1;

Figur 5

die Ladestation aus Figur 4 mit einem in eine Ladestation einer der Ladevorrichtungen eingesetzten Magazin;

Figur 6

einen Ausschnitt der Ladevorrichtung aus Figur 2 oder 4 und eines eingesetzten Magazins; und

Figur 7

einen Ausschnitt der Ladevorrichtung aus Figur 2 oder 4 ohne Magazin.

Further features and advantages of the present invention will be explained in more detail with reference to FIGS. However, the invention is not limited to the described embodiments. The individual features of the invention shown in the figures and described below can be combined with each other as desired. Show it:

FIG. 1

a retrofitted firearm for use in a weapon simulator;

FIG. 2

a loading device according to the invention for charging a pneumatic pressure accumulator of a converted magazine of the converted firearm FIG. 1 ;

FIG. 3

the charger off FIG. 2 with a magazine inserted;

FIG. 4

a charging station according to the invention with a plurality of charging devices for charging pneumatic accumulators of several rebuilt magazines for converted firearms according to FIG. 1 ;

FIG. 5

the charging station off FIG. 4 with a magazine inserted in a loading station of one of the loading devices;

FIG. 6

a section of the loader FIG. 2 or 4 and a used magazine; and

FIG. 7

a section of the loader FIG. 2 or 4 without a magazine.

In FIG. 1 is a retrofitted for practice purposes firearm as part of a weapon simulator in its entirety by the reference numeral 1 denotes. The weapon simulator (not shown) is used to train as realistic as possible using rebuilt firearms, such as the firearm 1. The weapon simulator may include a central control computer, in which all firearms used in the vicinity of the weapon simulator, such as the firearm 1 and other retrofitted Firearms, registered or registered. The control computer communicates with the registered firearms in a communication connection, which can be realized via an electrical line or wirelessly, for example by radio. The control computer serves for the coordination and evaluation of training units of the individual registered firearms. On a central control computer of the weapon simulator can also be dispensed with if, for example, the converted firearm 1 is used for recreational purposes.

The firearm 1 is similar in appearance and weight, as well as in its feel and maneuverability real firearm. The firearm 1, however, has been converted so that it does not shoot blank cartridges or real ammunition. The various actions that take place in a real firearm before, during and after a delivery of a shot and cause a recoil of the weapon must therefore be simulated in the converted firearm 1. For this purpose, the firearm 1 has a pneumatically operated by means of compressed gas device for simulating a recoil when "firing" a simulated shot. In the firearm 1 sensors can be arranged, which detect a current operating state of the firearm 1, and it can be provided actuators that make depending on the current operating state corresponding actions, so that the most realistic use of the firearm 1 is given.

For example, a sensor 2 'can detect the actuation of a trigger or trigger 2, which - possibly after further conditions are met - leads to the "firing" of a simulated shot. When the trigger 2 is actuated, an electronic control unit 17 can be activated and thus a laser 36 can be activated in order to emit a laser beam in the target direction out of the barrel 38 of the weapon 1. The sensor 2 'and the control electronics 17 are shown only schematically; those skilled in the art know how to connect and switch to each other so that the laser 36 is activated at the time the trigger 2 is actuated.

At the same time a recoil of the firearm 1 is simulated. For this purpose, for example, a slide or shutter 3 of the weapon 1 from the in FIG. 1 shown home or rest position to the rear, in FIG. 1 so to the left, to be moved. The movement of the closure 3 can be triggered, for example, by means of a shooting cylinder / piston arrangement 9. For detecting the movement of the shutter 3, a further sensor (not shown) may be provided. To move the shutter 3 can not use the energy of a fired cartridge, since the converted firearm 1 of the weapon simulator fires no cartridges or other ammunition. Instead, a hydraulic medium, for example a gas, in particular air, is used to actuate the closure 3, which if necessary acts on the closure 3 or the shooting cylinder / piston arrangement 9.

In FIG. 1 a housing of the firearm 1 is denoted by the reference numeral 4. The housing 4 comprises a handle 10, which has an opening 11 at its lower end side, behind which hides a magazine holder formed in the interior of the handle 10. In real firearms, a magazine with one or more cartridges contained therein is inserted and releasably secured in the magazine receptacle. In the present case of the converted firearm 1 for use in the weapon simulator, instead of the genuine magazine, a converted magazine 12 is inserted and fixed in the magazine receptacle. There may be another sensor provided to properly engage the magazine holder introduced and fixed magazine 12 to detect. The rebuilt magazine 12 resembles a real magazine in terms of its appearance and weight, as well as its feel and usability.

The rebuilt magazine 12 comprises in its interior a pneumatic pressure accumulator 13, in which a compressed gas, for example air, is stored under high pressure, for example in the range from 200 to 300 bar. The stored in the pressure accumulator 13 compressed gas is used to actuate the shutter 3 when "firing" a "shot" with the firearm 1 to simulate a recoil of the weapon 1. Upon actuation of the trigger 2, the shutter 3 by compressed gas from the pressure accumulator 13 out and reciprocated. It is conceivable that only the rearward movement of the shutter 3 is generated by the compressed gas, whereas the forwardly directed movement in another way, for example. By acting on the shutter 3 restoring element (eg a compression spring) is generated as soon as no compressed gas is applied to the closure 3 more.

The pressure accumulator 13 of the rebuilt magazine 12 communicates via a line 20 with an outlet opening 22, which is associated with a check valve 24 which closes the outlet opening 22 when the magazine 12 is not fully inserted into the magazine holder. The firearm 1 has at the foot of the magazine receptacle on a connecting piece 26 which protrudes when inserted magazine 12 into the outlet opening 22 and the check valve 24 opens automatically, so that the compressed gas from the Pressure accumulator 13 is applied to the pneumatic device for simulating the recoil of the firearm 1. By means of electromagnetically controllable pneumatic valves, the flow of compressed gas in the device for the simulation of the recoil can be controlled, so that the compressed gas, for example. Only when "firing" a simulated "shot" on the shutter 3 is applied and triggers its reciprocation. The connecting piece 26 is provided on its outer peripheral surface with sealing rings 28, through which the connecting piece 26 is sealed against the inner wall of the outlet opening 22. At the distal end of the connecting piece 26, an inlet opening 30 is formed, on the fully inserted into the magazine holder magazine 12, the pressurized gas from the pressure accumulator 13 via line 20, the open valve 24 and the outlet opening 22 in the device for the simulation of the recoil of Firearm 1 arrives.

The pressure accumulator 13 of the rebuilt magazine 12 is also connected via a line 32 to an inlet opening 34, which is also associated with a check valve which closes the inlet opening 34 when the magazine 12 is not connected to a charging station for charging the pressure accumulator 13 with a pressurized gas or if no compressed gas is present for charging the pressure accumulator 13. Instead of the inlet opening 34 on the underside of the magazine 12, an inlet opening can also be arranged laterally on the magazine 12. A corresponding inlet opening 34 'is shown in dashed lines and is connected via a line 32' to the pressure accumulator 13 in Connection. A laterally arranged inlet opening 34 'is less susceptible to damage and soiling, for example. As a result of dropping the weapon in the field. The inlet openings 34, 34 'are arranged in this example in a collar-shaped edge portion 15 of the magazine 12. Of course, they can also be arranged at any other location in the magazine 12.

The firearm 1 may comprise purely mechanically or pneumatically actuated control means to control the pneumatic actuation of the shutter 3. Alternatively, the control means of the weapon 1 may also have electrical or electronic components which, for example, actuate electromagnetically actuated pneumatic valves in order to control the pneumatic actuation of the closure 3. In the embodiment of FIG. 1 The control means of the weapon 1 comprise electronic components, for example in the form of an electrical power supply device 16, control electronics 17 (eg a programmable microprocessor) and means 18 (eg a computer program running on the microprocessor) for sequencing the firearm 1.

The components contained in the weapon 1 for actuating the closure 3 or a shooting cylinder / piston arrangement 9 which acts on the closure 3, are in FIG. 1 only shown schematically. Except the in FIG. 1 shown and described above components, even more components, in particular more Pneumatic lines and / or pneumatic valves may be provided.

The electrical power supply device 16 of the weapon 1 is designed, for example, as a battery, preferably as a rechargeable battery. Alternatively, the power supply device 16 may also include an electrical plug element (not shown) to which a cable for powering the weapon 1 can be connected from the outside. Furthermore, the weapon 1 may comprise at least one programmable microprocessor 17 and means (e.g., in the form of a computer program running on the microprocessor 17) for sequencing the firearm 1. Preferably, the computer program is stored in an external or internal memory element of the microprocessor 17 and is at the beginning of a training session or booting ("booting") of the central control computer of the weapon simulator, preferably immediately after a supply of the weapon 1 with electrical energy from the power supply device 16, at least partially loaded into the microprocessor 17 and is there ready for processing or is processed there.

The present invention is particularly concerned with the design of a charging device, as described below with reference to FIGS. 2 to 7 is explained in more detail. A first embodiment of a charging device 50 according to the invention is shown in FIG FIG. 2 shown. The charging device 50 serves to charge a pneumatic pressure accumulator 13 with a Compressed gas from a compressed gas source 52. The compressed gas source 52 is in FIG. 2 only symbolically drawn. It may, for example, be designed as a compressor or as a high-pressure gas tank in which a large amount of compressed gas is stored. The compressed gas source 52 is connected via a pneumatic line 54 to the charging device 50. The pressure accumulator 13 is arranged in a converted magazine, such as. The magazine 12 off FIG. 1 , The accumulator 13 is - as I said - trained compressed gas for a firearm, which is converted for practice purposes, such as the firearm 1 from FIG. 1 to provide for simulating a recoil of the firearm 1 available.

The loading device 50 has a loading position 56 immediately in front of an outlet opening 58 of the loading device 50. The loading position 56 in this example comprises two guide rails 60 arranged on opposite sides into which the edge section 15 of the magazine 12 can be inserted from above. When fully arranged in the loading position 56 magazine 12 or at fully (up to a lower stop) in the guide rails 60 introduced edge portion 15 is arranged on the bottom of the magazine 12 inlet opening 34 of the pressure accumulator 13 directly opposite the outlet opening 58 of the charging device 50th This is in FIG. 3 shown.

A charging station according to the invention may have a plurality of such charging devices 50, for example, the side and / or can be arranged one above the other. All charging devices 50 are preferably supplied with compressed gas by a common compressed gas source 52 via a plurality of lines 54. Preferably, all charging devices 50 of a charging station are also acted upon simultaneously with compressed gas from the compressed gas source 52 with a common pneumatic valve or not. An example of such a charging station is in FIG. 4 shown and designated in their entirety by the reference numeral 70. The charging station 70 comprises a plurality of juxtaposed charging devices 50 according to a second embodiment, of which in the FIGS. 4 and 5 only three are shown. The loaders 50 have a bottom loading recess 56 in which a magazine 12 can be inserted from above so that a bottom of the magazine 12 faces the bottom of the recess 56. The outlet opening 58 of the charging devices 50 is formed laterally in a wall of the recess 56. Accordingly, the magazine 12 has a laterally disposed inlet opening, such as the inlet opening 34 '. When the magazine 12 is fully inserted in the loading position 56, the inlet opening 34 'of the pressure accumulator 13 arranged on the side of the magazine 12 is located directly opposite the outlet opening 58 of the loading device 50 FIG. 5 for a magazine 12 inserted in the middle loading device 50.

Hereinafter, the embodiment of the charging device 50 based on FIGS. 6 and 7 explained in more detail. It has an opening into the loading position 56 outlet opening 58 with a the flow through the outlet opening 58 controlling pneumatic valve 80. The pneumatic valve 80 is in the application of the compressed gas from the compressed gas source 52 and arranged in the loading position 56 pressure accumulator 13 and magazine 12 in a flow position (see. FIG. 6 ), in which the compressed gas can pass through the outlet opening 58 via the check valve 24 into the pressure accumulator 13. When applying the compressed gas from the compressed gas source 52 and at no in the loading position 56 arranged pressure accumulator 13 or magazine 12, the pneumatic valve 80 in a shut-off position (see. FIG. 7 ), in which the outlet opening 58 is sealed gas-tight, so that no compressed gas can escape from the charging device 50.

The pneumatic valve 80 has a valve body 82 which can be moved from the flow-through position to the shut-off position by pressurized gas from the pressurized gas source 52, provided that no pressure accumulator 13 or magazine 12 is arranged in the loading position 56. Thus, an actuation of the pneumatic valve 80 with the compressed gas from the compressed gas source 52 causes a transition of the valve position from the flow position to the shut-off position, if no pressure accumulator 13 or magazine 12 is arranged in the loading position 56.

In FIG. 7 It can be seen that the valve body 82 projects into the loading position 56 of the loading device 50 in the shut-off position. If in the loading position 56 of the pressure accumulator 13 and the magazine 12 is arranged, the valve body 82 is even with pressurization Compressed gas from the pressurized gas source 52 prevented from entering the loading position 56 and reach the shut-off position.

The pneumatic valve 80 has a spring element 84, the movement of the valve body 82 by application of compressed gas from the compressed gas source 52 from the flow position (see. FIG. 6 ) in the shut-off position (see. FIG. 7 ) counteracts. The spring element 84 is preferably designed as a helical spring and compression spring. In a non-application of the compressed gas from the compressed gas source 52 to the valve body 82, the spring element 84 presses the valve body 82 in the flow position.

According to the embodiment shown here, the valve body 82 has a circular cross-section and is guided in a correspondingly designed guide bore 86 of the pneumatic valve 80 parallel to the flow direction 88 of the compressed gas through the outlet opening 58. The valve body 82 has a support section 90 facing the compressed gas source 52 and a guide section 92 facing away from the compressed gas source 52. The support portion 90 has a larger diameter than the guide portion 92, so that between the support portion 90 and the guide portion 92 results in a step 94 with an annular support surface 96, which is directed downward in this example. In the shut-off position of the valve body 82, the support surface 96 passes on a in the guide bore 86th trained support surface 98 to support. The valve body 82 is associated with an annular sealing member 100 which is disposed on an outer peripheral surface of the guide portion 92 on the support surface 96 of the valve body 82. In the shut-off position of the valve body 82, the sealing element 100 acts between the support surface 96 of the valve body 82 and the bearing surface 98 of the guide bore 86 and seals the passage from gas-tight.

In the flow position of the valve body 82 (see. FIG. 6 ), the support surface 96 of the valve body 82 and the bearing surface 98 of the guide bore 86 are spaced from each other and also the annular sealing element 100 is spaced from the support surface 98 of the guide bore 86. Due to the resulting gap compressed gas can flow. The valve body 82 has a transverse bore 102 which extends in the radial direction through the valve body 82 and a longitudinal bore 104 which branches off from the latter and opens into the outlet opening 58, through which the compressed gas flows in the flow-through position of the pneumatic valve 82.

The valve body 82 is associated with a further annular sealing member 106 which is disposed on an outer peripheral surface of the guide portion 92, preferably in an annular groove 108 formed there, and the guide portion 92 of the valve body 82 seals against the corresponding portion of the guide bore 86. From the valve body 82 outwardly opening openings of the Transverse bore 102 of the valve body 82 are arranged on one side of the further annular sealing element 106 facing the compressed gas source 52 (here above the plane defined by the sealing element 106), so that in the flow position of the valve body 82, the compressed gas flowing through the pneumatic valve 80 is completely across the transverse bore 102 and the longitudinal bore 104 reaches the outlet opening 58. The further annular sealing element 106 prevents the compressed gas between the outer peripheral surface of the guide portion 92 and the inner wall of the guide bore 86 is pushed through and thus is not available for filling the pressure accumulator 13.

Thus, the compressed gas can flow from the compressed gas source 52 in the flow position of the pneumatic valve 80 through the pneumatic valve 80 in the pressure accumulator 13 and charge it. The pressure of the compressed gas for filling the pressure accumulator 13 is approximately between 250 and 300 bar. Specifically, in the flow position of the pneumatic valve 80, the compressed gas may flow past between the outer peripheral surfaces of the support portion 90 and the inner wall of the guide bore 86, enter the transverse bore 102, and flow into the inlet port 34 of the accumulator 13 via the longitudinal bore 104 and the discharge port 58.

Furthermore, the valve body 82 comprises on a side facing away from the compressed gas source 82 side (in FIG. 7 bottom) adjacent to the guide portion 92 a holding portion 110 with a smaller diameter than the guide portion 92. Outside on the holding portion 110, the spring element 84 is held, which has a substantially hollow cylindrical shape, for example. Is designed as a helical spring. The spring element 84 acts between a stationary part of the charging device 50 and the valve body 82 which is movable parallel to the flow direction 88 and exerts a spring force directed into the flow-through position (upward) on the valve body 82.

Finally, the outlet opening 58 of the loading device 50 is assigned a further annular sealing element 112, which is arranged on a stop face on a distal end of the valve body 82 and radially surrounds the outlet opening 58 opening into the stop face. When located in the loading position 56 pressure accumulator 13 or magazine 12 and when pressurized gas from the pressurized gas source 52, the valve body 82 is applied, the stop surface is pressed at the distal end of the valve body 82 against a corresponding surface of the pressure accumulator 13 and magazine 12. The further sealing element 112 then seals the outlet opening 58 from an edge of the inlet opening 34 of the pneumatic pressure accumulator 13 located in the loading position 56 of the loading device 50. Thus, the compressed gas can flow with a high pressure and from the charging device 50 in the pneumatic pressure accumulator 13, without unintentionally escaping compressed gas.

The present invention has been described in terms of several embodiments in which the pneumatic pressure accumulator to be charged is part of a converted magazine 12 of a converted firearm 1. Of course, it would also be conceivable that the charging station 50 according to the invention is designed to charge a pressure accumulator 13, which is an integral part of a converted firearm 1. In this case, then the firearm 1 itself would have on an outside a filling opening 34, 34 'and it would be the complete firearm 1 in the loading position 56 of the charging device 50 are arranged.

Claims (15)

Charging device (50) for charging a pneumatic pressure accumulator (30) located in a loading position (56) of the loading device (50) with a compressed gas from a compressed gas source (52), wherein the pressure accumulator (30) is designed to supply compressed gas for a firearm (1). for retrofitting the firearm (1), characterized in that the loading device (50) has an outlet opening (58) opening into the loading position (56) with a flow through the outlet opening (58). 58) has a controlling pneumatic valve (80), wherein the pneumatic valve (80) upon application of the compressed gas from the compressed gas source (52) and in the loading position (56) arranged pressure accumulator (30) in a flow position, in which the pressurized gas through the outlet opening (58) can enter the pressure accumulator (30), and the pneumatic valve (80) when applying the compressed gas from the pressurized gas source (52) and none in the loading Posio n (56) arranged pressure accumulator (30) is in a shut-off position in which the outlet opening (58) is gas-tight, so that no compressed gas can flow through the outlet opening (58). Loading device (50) according to claim 1, characterized in that a loading of the Pneumatic valve (80) with the compressed gas from the compressed gas source (52) causes a transition from the flow position to the shut-off position, unless in the loading position (56) no pressure accumulator (30) is arranged. Charging device (50) according to claim 1 or 2, characterized in that the pneumatic valve (80) has a valve body (82) which is movable by pressurizing gas from the pressurized gas source (52) from the flow position to the shut-off position, if in the loading position (56) no pressure accumulator (30) is arranged. Loading device (50) according to claim 3, characterized in that the valve body (82) protrudes in the shut-off position into the loading position (56) of the loading device (50). Charging device (50) according to claim 3 or 4, characterized in that the pneumatic valve (80) comprises a spring element (84), the movement of the valve body (82) by applying compressed gas from the pressurized gas source (52) from the flow position to the shut-off position counteracts. Charging device (50) according to claim 5, characterized in that the spring element (84) in a non-application of the compressed gas from the compressed gas source (52) on the valve body (82) presses this in the flow position. Loading device (50) according to one of claims 3 to 6, characterized in that the valve body (82) has a circular cross section and in a correspondingly designed guide bore (86) of the pneumatic valve (80) parallel to the flow direction (88) of the compressed gas through the outlet opening (58), wherein the valve body (82) has a pressure gas source (52) facing the support portion (90) and a pressure gas source (52) facing away from the guide portion (92), wherein the support portion (90) has a larger diameter than the guide portion (92), so that between the support portion (90) and the guide portion (92) results in a step (94) having an annular support surface (96) in the shut-off position of the valve body (82) on one in the guide bore (86 ) formed bearing surface (98) comes to rest. Loading device (50) according to claim 7, characterized in that in the flow position of the valve body (82), the support surface (96) of the valve body (82) and the bearing surface (98) of the guide bore (86) are spaced from each other. Loading device (50) according to one of claims 3 to 8, characterized in that the valve body (82) is associated with an annular sealing element (100) which on an outer peripheral surface of the guide portion (92) on the support surface (96) of the Valve body (82) is arranged and in the shut-off position of the valve body (82) between the support surface (96) of the valve body (82) and the bearing surface (98) of the guide bore (86) acts. Charging device (50) according to one of claims 3 to 9, characterized in that the valve body (82) extends in a radial direction through the valve body (82) extending transverse bore (102) and a branching from this and in the outlet opening (58) Longitudinal bore (104) through which the compressed gas flows in the flow position of the pneumatic valve (80) to the outlet opening (58). Charging device (50) according to one of claims 3 to 10, characterized in that the valve body (82) is associated with a further annular sealing element (106) which on an outer peripheral surface of the guide portion (92), preferably in an annular groove formed there (108). , is arranged and seals the guide portion (92) of the valve body (82) against the corresponding portion of the guide bore (86). Charging device (50) according to claim 10 and 11, characterized in that from the valve body (82) outwardly opening openings of the transverse bore (102) of the valve body (82) on one of the compressed gas source (52) facing side of the further annular sealing element (106) is formed so that in the Flow position of the valve body (82) the entire through the pneumatic valve (80) flowing compressed gas passes through transverse bore (102) and the longitudinal bore (104) to the outlet opening (58). Loading device (50) according to one of claims 3 to 12, characterized in that the valve body (82) on a side remote from the compressed gas source (52) side adjacent to the guide portion (92) has a holding portion (110) with a smaller diameter than the guide portion (92), wherein on the outside of the holding portion (110) a substantially hollow cylindrical spring element (84), in particular a helical spring, is held. Loading device (50) according to one of claims 1 to 13, characterized in that the outlet opening (58) of the loading device (50) is associated with a further annular sealing element (112) which surrounds the outlet opening (58) radially and this against an edge of a Inlet opening (34, 34 ') of the in the loading position (56) of the loading device (50) located pneumatic accumulator (30) seals. Charging station (70) for charging a plurality of pneumatic pressure accumulator (30) with a compressed gas from a compressed gas source (52), characterized in that the charging station (70) has a plurality of charging devices (50) according to one of claims 1 to 14.

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