EP3109584B1 - Converted firearm which is part of a weapon simulator and refitted for training purposes and simulator with at least one such converted firearm - Google Patents

Description

The present invention relates to a converted firearm, which is part of a weapon simulator and is converted for exercise purposes and which has a movable back and forth between a front starting position and a retracted end position closure. The firearm has a hydraulic device for hydraulically actuating the shutter and simulating recoil of the firearm. The firearm also has a hydraulic connection for an external compressed air supply to the hydraulic device of the firearm. The external compressed air supply of the hydraulic device of the firearm is via an external compressed air reservoir, which is part of a converted magazine inserted into a magazine holder of the firearm.

Furthermore, the invention relates to a weapon simulator with at least one rebuilt for training purposes firearm.

'Hydraulic' in the sense of the present invention comprises both a liquid and a gaseous medium. Although the present invention will be explained with reference to compressed air as a hydraulic medium. But it could just as well be realized with a liquid hydraulic medium. Due to the dangers associated with the operation of real weapons, extensive training in the 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 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 gun recoil simulator is known wherein compressed air passes through openings in the gun barrel to move the gun barrel upward in a simulated recoil motion. A switch on the trigger activates an electromagnetic air valve to control the flow of air to the openings in the gun barrel. In this prior art, therefore, the recoil is not simulated by a reciprocable shutter, but solely by a controlled air flow.

Furthermore, from the WO 2004/015357 A2 a rebuilt firearm for a weapon simulator, in which a reciprocable shutter is hydraulically 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 fire ammunition, there is a lack of recoil triggered by the firing of the ammunition and a back and forth movement of the shutter caused thereby. The recoil can be simulated by the well-known converted firearm. In order to realize the hydraulic movement of the closure, a compressed air reservoir is contained in the known firearm, from which air can escape via electromagnetically actuated air valves when the trigger is actuated and can be used to move the closure back and forth.

The control of the electromagnetic valves in the firearm is computer controlled. The converted firearm is connected via a data communication connection with a central control computer of the weapon simulator in connection, which takes over the control of the firearm. The intelligence of the known firearm is therefore limited to sending state information about the current operating state of the firearm to the central control computer, to receive control commands from the control computer and to control the electromagnetic hydraulic valves for controlling the flow of compressed air in the firearm with it.

Another rebuilt firearm for use in a weapon simulator is, for example, the EP 2 385 337 A2 known. Again, the lock is hydraulically set in a reciprocating motion to simulate a recoil when "firing" the weapon. The firearm has a device with a closed hydraulic circuit, the various hydraulic components, including a hydraulic chamber for storing hydraulic medium having. The device has the outer shape of a magazine can be inserted into a magazine holder of the firearm and fixed therein. As a hydraulic medium also compressed air is used, which is supplied via a compressed air hose which is connected to fill the hydraulic chamber to the firearm.

Abrupt reciprocation of the shutter is realized by the use of a magazine instead of a magazine in the magazine holder of the firearm purely mechanical device. The device is formed without any electronics and has a hydraulic control mechanism. Various hydraulic chambers in the device, in conjunction with hydraulic valves and their particular control effect a sudden movement of a check lever, which is part of the device. The movement of the check lever acts on the lock of the firearm and drives it abruptly to the rear.

By a special embodiment of the control mechanism, a pressure valve and an outlet valve are actuated sequentially to realize the reciprocating movement of the shutter. Due to the closed hydraulic circuit, no hydraulic medium can escape to the outside during the functioning of the device or during the "firing" of the weapon. The device is first filled with hydraulic medium. In this case, hydraulic medium is introduced into a gas pressure chamber under high pressure. By driving the hydraulic valves, a certain amount of the hydraulic medium from the gas pressure chamber for actuating the check lever and thus the shutter is used. The used for triggering a movement of the shutter hydraulic medium then collects in a return chamber and from there back into the gas pressure chamber, where it then again for a re-actuation of the closure is available.

For a particularly good training in dealing with a firearm, the highest possible degree of agreement in the behavior of the simulated firearm with real firearms is important. In this context, the known converted firearms have various disadvantages. In real firearms remains after removal of the magazine from the magazine holder nor a cartridge in the cartridge chamber of the firearm. This can still be fired, although the magazine has already been removed. This behavior can, for example, by the from the EP 2 385 337 A2 known firearm can not be replicated. Since there after the removal of the rebuilt magazine, the check lever, which is the simulation of the recoil, the shutter in the back and forth movement no longer exists, a reciprocating movement of the shutter is no longer possible. Moreover, with real firearms, after inserting a magazine into the magazine receptacle, it must first be repeated to advance a cartridge from the magazine into the cartridge chamber. Without repeating after inserting a magazine, no shot can be fired. Also this behavior can by the from the EP 2 385 337 A2 known firearm can not be replicated. After inserting the known rebuilt magazine into the magazine holder, the check lever is present and is actuated by operating the shutter of the converted firearm, even without the firearm having been previously repeated, and causing the shutter to reciprocate.

For training purposes retrofitted firearms with an external compressed air storage, which is part of a rebuilt magazine which is inserted into a magazine receptacle of the firearm and compressed air to a hydraulic device for actuating a closure of the firearm to simulate a recoil after actuation of the trigger are further from the WO 2010/065124 A1 and the EP 1 308 689 A2 known.

Object of the present invention is therefore to provide a way to realize a particularly realistic simulation of a firearm in a simple and reliable way, in particular the above-mentioned functions of a real firearm even at rebuilt firearms of weapon simulators replicate particularly simple and cost-effective.

To solve this problem is proposed starting from the converted firearm of the type mentioned that the hydraulic device of the firearm has an internal pressure accumulator, which is acted upon by the hydraulic connection with compressed air, and that the hydraulic device of the firearm, a valve between the internal pressure accumulator and the hydraulic port, which closes after disconnection of an external compressed air supply from the port and prevents escape of the compressed air from the internal pressure accumulator, so that after removing the magazine from the magazine receiving so much compressed air in the hydraulic device including the internal pressure accumulator is stored, that the shutter can be moved at least once backwards.

A special feature of the pressure accumulator is that so much compressed air can be stored in it that even after removing the compressed air supply from the firearm still enough compressed air is stored in the hydraulic device of the firearm to at least a single actuation of the firearm, ie at least one-time Moving the shutter backwards or even allowing a back and forth movement of the shutter.

It is particularly advantageous that according to the invention the compressed air supply of the hydraulic device of the firearm takes place via a rebuilt magazine inserted into a magazine receptacle of the firearm. This has an external compressed air reservoir, which is connected to the hydraulic connection of the firearm with inserted in the magazine holder rebuilt magazine and so supplies the internal pressure accumulator with compressed air. In this case, the hydraulic connection is arranged in the magazine holder. It is proposed that the valve is designed as a check valve, which automatically closes when disconnecting the compressed air source from the hydraulic connection and thus prevents the escape of compressed air from the pressure accumulator. In particular, in the case of a compressed air supply via the rebuilt magazine, the valve automatically closes when the magazine is removed from the magazine receptacle and thus prevents the escape of compressed air from the internal pressure accumulator.

It is particularly advantageous if the internal pressure accumulator pneumatically via a further valve with a cylinder of the firearm Compresses compressed air from the hydraulic port and from the internal pressure accumulator, which results in a back and forth movement of the shutter. Preferably, the further valve is designed as a solenoid valve. This can be controlled by a central control unit of the firearm, which, for example, is designed as a microcontroller. An activation and opening of the solenoid valve takes place, for example, when a trigger of the firearm is actuated.

Preferably, with the further valve open, compressed air from the cylinder passes into a cavity between the cylinder and the closure which results in movement of the closure away from the cylinder towards the end position. Alternatively, it would of course also conceivable that the cylinder has a piston which is moved by the compressed air to the outside, abuts against the closure and thereby moves the closure to the rear in the direction of its end position.

According to the invention, the internal pressure accumulator between the first valve and the further valve has a volume which is so great that the compressed air stored therein after removal of the rebuilt magazine from the magazine receptacle of the firearm is sufficient to cause the closure to move back and forth at least once to move. Preferably, the internal pressure accumulator between the first valve and the further valve has a volume of at most 5 cm ³ , preferably from 3 to 4 cm ³ .

With regard to a possible realization of the internal pressure accumulator, it is proposed that the pressure accumulator is designed as a tube. By varying the length of the tube, the volume of the accumulator can be easily and inexpensively adapted to the prevailing conditions, in particular to the type of converted firearm. Preferably, the tube is shaped in the manner of a helix. This results in a especially space-saving pressure accumulator.

According to an advantageous embodiment of the invention, a rebuilt magazine is inserted into the magazine holder of the firearm, which resembles a real magazine of a real firearm purely externally. The converted magazine can be inserted into the magazine holder and set releasably therein. An appropriate sensor can detect the proper insertion and location of the rebuilt magazine in the magazine receptacle and report it to a centralized microcontroller of the remodeled firearm. Unlike genuine magazines containing the cartridges to be fired, the rebuilt magazine includes components for supplying the hydraulic device of the firearm with compressed air for simulating a recoil of the firearm during firing. In addition, electronic components are provided in the magazine, which allow a magazine-individual detection of fired from the magazine shots.

In the rebuilt magazine an external compressed air reservoir is initially provided, which preferably consists of one or more cylindrical cavities or tubes. Several cavities are connected via connecting lines with each other, so that there is the same pressure in all cavities. The cavities can, for example, from the bottom of the magazine ago by means of a hole in a solid material, which later forms the rebuilt magazine, are introduced. From the bottom then plugs can be inserted into the holes to close the hollow cylindrical cavities airtight to the outside. The compressed air reservoir is filled with so much compressed air that it can be fired several shots with the converted firearm. The amount of compressed air is at least sufficient to deliver as many shots as cartridges are maximally contained in a corresponding real magazine of a corresponding real firearm. In particular, the external compressed air storage with so filled with compressed air that in the memory immediately after filling a pressure of several hundred bar prevails. Preferably prevails in the external compressed air reservoir after filling a pressure of about 300 bar.

In the rebuilt magazine, a first connection is also provided, via which the external compressed air reservoir is hydraulically connected to the remaining components of the hydraulic device which are arranged in the rebuilt firearm when the magazine is inserted in a magazine receptacle of the firearm. The first port of the magazine pneumatically connects to the hydraulic port of the firearm. Thus, upon actuation of the trigger of the remodeled firearm, part of the stored compressed air is directed into the remaining components of the hydraulic device via the first port to initiate reciprocal movement of the shutter and to simulate recoil. To control the compressed air supply from the accumulator to the other arranged in the firearm components of the hydraulic device, a pneumatic valve is provided in the firearm. Preferably, this valve is designed as an electromagnetic valve. The control of the valve via control signals, which are generated by a central microcontroller of the firearm. The control signals are generated as a function of sensor signals which are generated by sensors arranged in the firearm, which record the current operating state of the firearm (eg magazine inserted, firearm repeated, trigger actuated, etc.). With the firearm according to the invention, a function can thus be realized even with the magazine rebuilt in the magazine holder, after which the hydraulic actuation of the closure takes place only after a repeating of the firearm. For this purpose, the electromagnetic valve of the firearm, which is arranged between the accumulator and the cylinder, must be controlled accordingly.

Since the components of the hydraulic device contained in the firearm with reasonable effort and reasonable cost can not be designed for pressures as high as prevail in the external pressure accumulator of the rebuilt magazine, in the magazine also a pressure reducer is arranged by the pressure of the pressure prevailing in the compressed air reservoir pressure is reduced to tens of bar. Preferably, the pressure to which the pressure reducer reduces the pressure prevailing in the compressed air reservoir pressure, adjustable for the particular application. In particular, the pressure is reduced to about 50 to 100 bar. The pressure reducer is arranged in a compressed air line, which runs from the compressed air reservoir to the first port of the magazine.

In one of the stoppers inserted from the underside into the hollow cylindrical cavities forming the external pressure accumulator, a further connection provided with a check valve of the rebuilt magazine can be formed. An external compressed air line can be connected to this additional connection in order to fill the external compressed air reservoir with compressed air. This is preferably done once before a training session. During the actual training session, the compressed air line is then disconnected from the other connection. The compressed air stored in the compressed air reservoir is preferably sufficient to deliver as many shots as cartridges can be used in several real magazines of real firearms.

Furthermore, the converted magazine comprises an electronic storage element which stores the shots delivered with this magazine magazine-individually. The memory element is embodied, for example, as an EPROM or EEPROM, as an arbitrary RAM or as a so-called flash memory. The values stored in the memory element are retained even after the magazine has been removed from the magazine holder of the firearm. In this way, after removal and later reinstallation of the rebuilt magazine can be counted again at the stored value. The counter reading can be reset after the magazine has been cleared, as if the magazine had been filled with cartridges again. The reset can be done, for example, automatically when recharging the external compressed air reservoir with compressed air. Then the counting of the shots fired with the magazine starts again from the beginning.

Furthermore, in the memory element also a summation of all with this magazine so far (over several charge cycles away) delivered shots are stored. This value provides information on the expected remaining life of the rebuilt magazine. Due to the high pressures of several hundred bars present in the external pressure accumulator and part of the other hydraulic components of the magazine, the shelf life and reliable operation of the magazine are limited to a certain number of shots. Then the magazine should be sorted out and possibly replaced with a new one.

The values to be stored in the memory element are preferably predetermined by the central microcontroller of the converted firearm. The corresponding data transmission from the central microcontroller of the firearm to the storage element can take place via the at least one electrical contact element of the magazine. Any data transmission between the central microcontroller of the firearm and the memory element can take place via this. Furthermore, an energy transfer between an energy source of the firearm and the storage element can take place via the at least one contact element. The electrical energy can be used to store the values in the memory element or otherwise used to alter the contents of the storage element. If only one contact element is provided, the electrical energy via this contact element as a phase and the housing of the magazine or the firearm (if the housing is made of an electrically conductive material) as a mass.

Preferably, a plurality of contact elements for the energy and data transmission are provided. These may be part of a contact strip, which is arranged on the rebuilt magazine. The converted firearm likewise has a contact strip with at least one contact element at a corresponding point. Each contact element is preferably designed resiliently in the direction of insertion of the rebuilt magazine in the magazine receptacle resiliently to ensure a secure and reliable contact. The or each contact element of the rebuilt magazine may also be part of a plug or a socket, wherein in the magazine holder of the firearm then one or more corresponding contact elements are arranged, which may be part of a corresponding socket or a plug.

The contained in the magazine, external compressed air reservoir for supplying compressed air to the firearm has the advantage over a permanent compressed air supply via a compressed air line connected to the firearm that the shooter can move freely with the converted firearm in a weapon simulator.

The memory element is preferably part of a microcontroller contained in the rebuilt magazine. In this way, the magazine also has some intelligence to perform arithmetic operations or to perform control tasks on the components of the magazine. The additional microcontroller of the rebuilt magazine can relieve the central microcontroller of the firearm and functional complete. Furthermore, the magazine's additional microcontroller can control communication with the firearm's central microcontroller via the at least one contact element.

It is also proposed that the rebuilt magazine also has a movable catch catch, which is normally fully retracted in the magazine and which, after firing the last shot out of the converted magazine, extends into a range of movement of a closure of the firearm to open the closure to hold a back driven position. Thus, as with real firearms, the shutter is held in the rear position when no more cartridges are loaded into the cartridge chamber. To operate the closure catch, the converted magazine preferably has an electric motor or an electromagnet. These can also be controlled either by the central microcontroller of the firearm and / or the additional microcontroller of the magazine. The power supply of the electromagnet or the electric motor is preferably also via the at least one contact element.

The present invention also relates to a weapon simulator of the type mentioned, wherein the at least one converted firing gun for practice purposes is designed according to the invention.

Figur 1

einen Ausschnitt einer erfindungsgemäßen umgerüsteten Feuerwaffe zur Verwendung in einem Waffensimulator mit einer hydraulischen Vorrichtung zur Simulation eines Rückstoßes der Feuerwaffe und einem in die Feuerwaffe eingesetzten umgebauten Magazin als Teil der hydraulischen Vorrichtung gemäß einer bevorzugten Ausführungsform;

Figur 2

ein in der Feuerwaffe aus Figur 1 enthaltener Teil der hydraulischen Vorrichtung im Ausschnitt; und

Figur 3

ein in eine Magazinaufnahme der Feuerwaffe aus Figur 1 eingesetztes erfindungsgemäßes umgebautes Magazin mit einem Teil der hydraulischen Vorrichtung.

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. Show it:

FIG. 1

a section of an inventive retrofitted firearm for use in a weapon simulator having a hydraulic device for simulating recoil of the firearm and a converted magazine inserted into the firearm as part of the hydraulic device according to a preferred embodiment;

FIG. 2

one in the firearm FIG. 1 included part of the hydraulic device in the cutting; and

FIG. 3

one in a magazine holder of the firearm FIG. 1 used inventive rebuilt magazine with a part of the hydraulic device.

In FIG. 1 a detail of a firearm according to the invention is designated as part of a weapon simulator in its entirety by the reference numeral 1. The weapon simulator (not shown) comprises, for example, a central control computer in which all firearms, for example the firearm 1 and other firearms, which have been converted in the vicinity of the weapon simulator, have been registered for practice purposes. The weapon simulator is used to train as realistic as possible using firearms. The weapon simulator may comprise at least one display, eg in the form of a screen or a screen, on which a training scenario is displayed.

The firearm 1 is similar in appearance and weight, as well as in its feel and manageability of real firearms. 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 must therefore be simulated in the converted firearm 1. For this purpose, 1 sensors are arranged in the firearm, which detect a current operating state of the firearm 1, and Actuators are provided which make appropriate actions depending on the current operating state, so that the most realistic possible use of the firearm 1 is provided.

For example, a sensor can detect the actuation of a trigger of the firearm 1, which - possibly after further conditions are met - leads to the "firing" of a simulated shot. For this purpose, for example, a closure 2 of the weapon 1 from the in FIG. 1 shown home or rest position to the rear, in FIG. 1 so to the right, to be moved. For detecting the movement of the closure 2, a further sensor may be provided.

To move the shutter 2, the energy of a fired cartridge can not be used because the retrofitted firearm 1 of the weapon simulator does not fire cartridges or other ammunition. Instead, the operation of the closure 2 is a hydraulic device 3, which uses a hydraulic medium, such as compressed air. A part 3a or some components of the hydraulic device 3 are arranged in the firearm 1. Another part 3b or some other components of the hydraulic device 3 are in a converted magazine 4 (see. FIG. 3 ) arranged. The magazine 4 is inserted into a magazine receptacle 5 of the firearm 1.

The part 3a of the hydraulic device 3 in the firearm 1 comprises a hydraulic port 6, via the inserted into the magazine holder 5 rebuilt magazine 4 compressed air from the part 3b of the hydraulic device 3, which is arranged in the magazine 4, in the part 3a the firearm 1 is transmitted. In the example shown, the connection 6 comprises a pin which penetrates into a corresponding first hydraulic connection in the magazine 4 and opens a check valve in the magazine 4. This will be later explained in more detail. The compressed air is from the hydraulic port 6 via compressed air lines, which are shown schematically and designated by the reference numeral 7, and a check valve 8 in an internal pressure accumulator 9 of the firearm 1 passed (see. FIG. 2 ). Further, the part 3 a of the hydraulic device 3 has a solenoid valve 10 which opens briefly upon actuation of the trigger of the firearm 1 to compressed air from the external compressed air reservoir 19 of the magazine 4 and the internal pressure accumulator 9 of the firearm 1 via one or more compressed air lines schematically drawn and designated by the reference numeral 11, to guide to a cylinder 12. The cylinder 12 is seated as airtight as possible in a corresponding bore of the closure 2, so that compressed air flowing from the cylinder 12 into the bore of the closure 2 abruptly moves the closure 2 backwards. There is no need for a hermetic seal between the cylinder 12 and the bore in the closure 2. It is sufficient that a sudden injection of compressed air into the cavity between the cylinder 12 and the bore leads to a movement of the closure 2 in the direction of the end position. Immediately after reaching the rear end position of the closure 2 or to a small extent even during the movement to the rear, compressed air can escape from the cavity between the bore of the closure 2 and the cylinder 12. The return movement to the front in the starting position is then preferably by means of a spring element thirteenth

After the back and forth movement of the shutter 2 comes again with closed solenoid valve 8 compressed air from the external compressed air reservoir 19 of the magazine 4 in the hydraulic lines 7 and the internal pressure accumulator 9. By the internal pressure accumulator 9, it is possible that after removing the magazine 4 from the magazine holder 5 is still stored as much compressed air in the compressed air lines 7 and the internal pressure accumulator 9 that at least one shot can be delivered, ie that the shutter 2 at least once back can be moved. This simulates that after removing a genuine magazine from the magazine holder of a real firearm, a cartridge is still contained in the cartridge chamber, which can still be fired, although no magazine is no longer used. The volume of the internal pressure accumulator 9 is a maximum of 5 cm ³ . If you add the volume of the pressure lines 7 between the check valve 8 and the solenoid valve 10 still added, the volume is slightly larger. For large firearms 1, for example the G36 assault rifle, a volume of the internal pressure accumulator 9 of about 4 cm ³ (in particular 3.76992 cm ³ ) has proven to be completely adequate. This volume is realized, for example, by a 30 cm long metal tube, for example made of copper, with a diameter of 2 mm. The tube is preferably formed as a helix to accommodate the internal pressure accumulator 9 as possible to save space in the firearm 1 can. By varying the length of the tube, the volume of the internal pressure accumulator 9 can be adapted to the respective firearm 1 and to the amount of compressed air required for actuating the closure 2 after removal of the magazine 4. Of course, other embodiments of the internal pressure accumulator 9 can be realized.

When the magazine 4 is removed from the magazine holder 5, the check valve 8 closes, so that the compressed air in the internal pressure accumulator 9 and the compressed air lines 7 between internal pressure accumulator 9 and check valve 8 remains. By opening the solenoid valve 10, the compressed air then passes to simulate a recoil in the cavity between the cylinder 12 and the bore in the closure 2 and causes a back and forth movement of the closure 2. An escape of the compressed air back to the terminal 6 is through the closed Check valve 8 prevented.

The control of the solenoid valve 10 via a central control unit (not shown), for example. In the form of a microcontroller, the firearm 1. Depending on Sensor signals, which are generated by the sensors of the firearm 1 and observe the current operating state of the firearm 1, the central control unit generates control signals for the solenoid valve 10. In particular, a drive signal for opening the valve 10 is generated when the trigger of the firearm 1 is actuated and possibly even more conditions are met, for example, a magazine 4 is inserted into the magazine holder 5.

The firearm 1 also has a contact strip 14 with at least one electrical contact element 15. The at least one contact element 15 is connected to the central control unit of the firearm 1 in connection, wherein the data lines are not shown in the figures. Alternatively or additionally, at least one contact element 15 can be connected to an electrical energy source of the firearm 1 in order to conduct electrical energy to the components of the hydraulic device 3b of the magazine 4. The contact strip 14 is adapted, when inserted into the magazine receptacle 15 magazine 4 with a corresponding contact strip 16 with at least one contact element 17 to make electrical contact to data (eg control signals) and / or energy from the firearm 1 to the converted To transfer magazine 4 and the components arranged therein.

An example of a rebuilt magazine 4 according to the invention is shown in FIG FIG. 3 shown. There, the contact strip with the reference numeral 16 and the at least one contact element denoted by the reference numeral 17. The at least one contact element 17 is in contact with an electronic memory element 18. In the memory element 18, values for various variables during operation of the firearm 1 with the magazine 4 can be stored in a magazine-individual manner. These values are, for example, a number of shots that have occurred since a pneumatic recharge of the external Compressed air storage 19 of the magazine 4 have been delivered, the total number of previously issued with the magazine 4 over several recharges away shots, the number of recharges during which the rebuilt magazine 4 was charged with compressed air. These values remain stored in the memory element 18 even when the magazine 4 is removed from the magazine holder 5. If the magazine 4 is then used again in the same or another firearm 1, the stored values are immediately available again. The stored values can be read in by the central control unit of the firearm 1 and stored internally in the control unit. Thus, the control unit knows, for example, whether a shot has already been fired from a newly inserted magazine 4 and, if so, how many shots have been fired, and can continue counting from this value. In addition, from the total number of shots delivered over the previous life of the magazine 4 or the number of recharge operations, an estimated expected further life of the magazine 4 can be deduced and disposed of in good time to endanger the shooter or other bystanders avoid.

The rebuilt magazine 4 as part 3b of the hydraulic device 3 further comprises an external compressed air reservoir 19, in which in a fully filled state compressed air for multiple actuation of outside of the rebuilt magazine 4 in the firearm 1 arranged hydraulic device 3 and the shutter 2 included is. The external compressed air reservoir 19 comprises, in the illustrated example, a plurality of cylindrical bores 19a, 19b, 19c, which communicate with each other via hydraulic lines 19d, so that the same pressure prevails in the entire compressed air reservoir 19 as far as possible. In order to seal the bores 19a, 19b, 19c to the outside, they are hermetically sealed by means of plugs 20. In one of the plugs 20, a further connection 21 may be arranged with a check valve 22 at a compressed air line (not shown) can be connected to fill the external compressed air reservoir 19 with compressed air. After filling prevails in the compressed air reservoir 19 is preferably a pressure of a few hundred bar, in particular of about 300 bar. Of course, there may be other pressures depending on the application. In particular, the pressure in the external compressed air reservoir 19 decreases with the number of shots already fired since the last charging process.

Compressed air from the external compressed air reservoir 19 reaches the first port 24 of the magazine 4 via another compressed air line 23, which also has a check valve 25. When fully inserted into the magazine holder 5 magazine 4, the terminal 6 engages the terminal 24 into engagement and forms an airtight connection between the magazine 4 and the firearm 1. The pin of the terminal 6 automatically opens the check valve 25. In this way, compressed air from the external compressed air reservoir 19 in the internal pressure accumulator 9 of the firearm 1 arrive. So that the high pressure from the external compressed air reservoir 19 is not applied to the components 3a of the hydraulic device 3 of the firearm 1, a pressure reducer 26 is arranged in the compressed air line 23. The pressure to which the pressure reducer 26 reduces the pressure prevailing in the external compressed air accumulator 19 pressure is adjustable for the particular application. Preferably, this reduces the pressure from the external compressed air reservoir 19 to a few zig bar, in particular to about 50 to 100 bar.

Furthermore, the converted magazine 4 comprises a closing catch 27, which can be moved in the direction of a double arrow 28 and which normally (see FIG. FIG. 3 ) is completely retracted in the magazine 4 is arranged. After firing the last shot from the magazine 4, the shutter catch 27 moves out of the magazine 4 (in FIG FIG. 3 upward) into a range of movement of the shutter 2 of the firearm 1 to the shutter 2 in to hold a driven back end position. For actuating the closing catch 27, an electrical actuating element 29 is provided which, for example, can be designed as an electric motor or as an electromagnet. A control of the actuating element 29 is preferably carried out by the central control unit of the firearm 1. Corresponding control signals of the control unit are transmitted via the contact elements 15, 17 of the contact strips 14, 16 to the actuating element 29.

The memory element 18 may also be part of a local microcontroller of the magazine 4. If necessary, this can relieve or functionally supplement the central control unit of the firearm 1. Thus, the local microcontroller possibly together with the central control unit to control the actuation element 29 of the catch 27 take over. It would also be conceivable that the local microcontroller controls the communication with the central control unit. In this way, a bus system, for example an E ² C bus, could be realized for data transmission via the contact elements 15, 17. The electrical energy for operating the local microcontroller can be transmitted, for example, via one or more of the contact elements 15, 17 from an energy source of the firearm 1.

In summary, therefore, the invention proposes instead of the known from the prior art purely mechanical systems for simulating a recoil of the firearm 1, in which a mechanically actuated check lever of the converted magazine strikes against the shutter 2 and the back and forth movement triggers an intelligent electronic system in front. It is particularly advantageous that the number of fired shots and / or the number of completed charging cycles of the external compressed air reservoir 19 can be stored individually magazine. Furthermore, it is advantageous that due to the internal pressure accumulator 9 in the part 3a of the hydraulic device 3 of the firearm 1 after the removal of the magazine 4 from the magazine holder 5 still a last shot can be fired, which is not possible in the known mechanical systems.

Claims (9)

1. Converted firearm (1), which is part of a weapon simulator and is refitted for training purposes and comprises a bolt (2) which is movable back and forth between a front starting position and an end position that is moved backwards, the firearm (1) comprising a hydraulic device (3; 3a) for hydraulically actuating the bolt (2) and for simulating recoil of the firearm (1), and the firearm comprising a first hydraulic connector (6) for externally supplying compressed air to the hydraulic device (3; 3a) of the firearm (1), the hydraulic device (3; 3a) of the firearm (1) being externally supplied with compressed air by means of an external compressed-air store (19) that is part of a converted magazine (4) inserted in a magazine receptacle (5) of the firearm (1), characterized in that the hydraulic device (3; 3a) of the firearm (1) comprises an internal pressure accumulator (9) which is pressurized with compressed air by means of the hydraulic connector (6), and in that the hydraulic device (3; 3a) of the firearm (1) comprises a valve (8) between the internal pressure accumulator (9) and the hydraulic connector (6), which valve closes after an external compressed-air supply is detached from the connector (6) and prevents the compressed air from escaping from the internal pressure accumulator (9), such that, after the magazine (4) is removed from the magazine receptacle (5), a sufficient amount of compressed air is still stored in the hydraulic device (3; 3a), including the internal pressure accumulator (9), so that the bolt (2) can still be moved backwards at least once.
2. Converted firearm (1) according to claim 1, characterized in that the valve (8) is in the form of a non-return valve.
3. Converted firearm (1) according to claim 1 or claim 2, characterized in that the internal pressure accumulator (9) is pneumatically connected to a cylinder (12) via an additional valve (10), into which cylinder compressed air from the hydraulic connector (6) and out of the internal pressure accumulator (9) reaches when the additional valve (10) is open, which compressed air results in a back and forth movement of the bolt (2).
4. Converted firearm (1) according to claim 3, characterized in that the additional valve (10) is in the form of a solenoid valve.
5. Converted firearm (1) according to claim 3 or claim 4, characterized in that, when the additional valve (10) is open, compressed air from the cylinder (12) reaches a cavity between the cylinder (12) and the bolt (2) and results in movement of the bolt (2) away from the cylinder (12) towards the end position.
6. Converted firearm (1) according to any of claims 1 to 5, characterized in that the internal pressure accumulator (9) between the first valve (8) and the additional valve (10) has a volume of a maximum of 5 cm³, preferably from 3 to 4 cm³.
7. Converted firearm (1) according to any of claims 1 to 6, characterized in that the internal pressure accumulator (9) is in the form of a tube.
8. Converted firearm (1) according to claim 7, characterized in that the tube is shaped in the manner of a spiral.
9. Weapon simulator comprising at least one firearm (1) converted for training purposes which is designed according to any of claims 1 to 8.

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