WO2020173868A1

WO2020173868A1 - Light module having a gas-pressure-operated switch

Info

Publication number: WO2020173868A1
Application number: PCT/EP2020/054757
Authority: WO
Inventors: Peter Spielberger
Original assignee: Peter Spielberger
Priority date: 2019-02-25
Filing date: 2020-02-24
Publication date: 2020-09-03
Also published as: AT521700A4; AT521700B1

Abstract

The invention relates to a light module for a training weapon, which light module emits a light beam when the trigger is actuated. The light module comprises a housing (G) having a gas inlet opening (30) and a pressure piston (4) which can be moved inside the housing (G) from a non-operative region (R) into a contact region (K) and vice versa, and comprises a light source (1) connected to the housing (G) for emitting the light beam. A piston spring (12) is provided which, when a normal gas pressure acts on the pressure piston (4), is relaxed and holds the pressure piston (4) in the non-operative region (R), and, when an excessive gas pressure (p1) acts on the pressure piston (4) through the gas inlet opening (30), the piston spring (12) is compressed and moves the pressure piston (4) into the contact region (K). When the pressure piston (4) is in the contact region (K), an electrical circuit (i) is closed, and the light source (1) is thus activated. When the pressure piston (4) is in the non-operative region (R), the electrical circuit (i) is open, and the light source (1) is thus deactivated.

Description

LIGHT MODULE WITH A GAS PRESSURE SWITCH

The present invention relates to a light module comprising a housing with a gas inlet opening and a pressure piston which is movable within the housing from a rest area to a contact area and vice versa and comprising a light source connected to the housing for emitting a light beam.

Airsoft guns are designed to fire plastic balls with a diameter of 6 mm with an energy of about 5 joules and usually comprise an outer barrel and an inner barrel. The outer barrel is primarily used for optics and is usually thin-walled

Plastic body or metal body executed and can, for example, emulate a slide of a pistol. The inner barrel is attached to a so-called "pseudo cartridge chamber" or to an unlocking gate. Furthermore, the inner barrel is usually as

Brass tube with 6 mm inside diameter and 8 mm outside diameter. The outer barrel can be attached to the airsoft pistols and airsoft revolvers in particular

Muzzle side be connected to the inner barrel.

For training purposes, it may be desirable to modify airsoft guns or real firearms in such a way that when the trigger is actuated no projectile is fired, but a light beam is emitted for a predetermined period of time.

US Pat. No. 8,568,143 discloses an airsoft weapon with a special barrel, comprising a laser diode. No. 9,417,035 B2 shows a laser device which can be screwed onto the barrel of a real firearm. For this purpose, a thread for mounting the laser device must be provided on the muzzle of the barrel, but this is prohibited in some countries. There is also an external power supply in a cuboid housing under the barrel. The shown

The laser device is therefore basically suitable for long weapons or short weapons with an excessively long barrel. In both cases, handling the weapon with the mounted laser module is made significantly more difficult because the weight distribution is caused by the on the barrel

The screwed-on laser module is strongly influenced. In addition, the total length of the weapon is increased by a mounted laser device. US 2002/0194765 A1 discloses a special barrel with a laser, which cannot be used universally, but is firmly integrated into the barrel of the weapon. The laser is activated electrically via the trigger. US 2012/0129136 A1 also shows a laser module which is also integrated in a special barrel, but which is activated by a resulting vibration. No. 9,759,521 B2 again shows a laser module which is activated by an audio signal or by a pressure switch. The laser module can thus be activated by using blank cartridges. US 2018/0023923 discloses a laser module which is screwed onto the barrel of a weapon. The laser itself is activated by a firing pin of the weapon, a microcontroller is provided to adjust the duration of the emitted laser beam. The slide does not move when the shot is fired.

It is an object of the present invention to provide a light module for a training weapon which emits a light beam when the trigger is actuated.

This object is achieved according to the invention by providing a piston spring which is relaxed when normal gas pressure acts on the pressure piston and keeps the pressure piston in the rest area and, when there is excess gas pressure acting on the pressure piston through the gas inlet opening, the piston spring is compressed and moves the pressure piston into the contact area. When the pressure piston is in the contact area, an electrical circuit is closed, which activates the light source. When in the rest area

located plunger, the electrical circuit is open, which deactivates the light source.

A major advantage of the light module according to the invention is that the number of electronic components can be kept low. In particular, no sensors (pressure sensors, etc.) are required to trigger the light beam and / or to control the duration of the light beam, since the circuit is closed by the pressure piston located in the contact area. The circuit is therefore closed over the period of time during which the pressure piston is in the contact area. Any elastic element that can be mechanically tensioned and relaxed can be regarded as a piston spring. The use of a spiral spring as a piston spring is particularly advantageous.

The gas inlet opening can be located, for example, at an axial end of the housing. The light source is preferably located at an axial end of the housing opposite the gas inlet opening and can, for example, by means of

Worm screws must be screwed into the housing of the light module. The pressure piston is kept in the rest area by the piston spring, provided that there is no excess gas pressure on the

Acts pressure piston. However, it acts through the gas inlet opening of the housing

Excess gas pressure on the pressure piston, the pressure piston moves against the

Spring force of the piston spring and closes an electrical circuit, whereby the

Laser diode emits a beam of light. A gas pressure which exceeds a certain threshold is referred to as excess gas pressure. The plunger is at

prevailing gas overpressure preferably not only in a contact position, but in a contact area with a contact start position and a

Contact end position. The plunger must however during the prevailing

Excess gas pressure does not necessarily reach the contact end position. Since the electric

The circuit is closed while the pressure piston is in the contact area, depending on the gas overpressure and / or the design of the piston spring, a certain one Contact duration, which in turn determines the duration of the light beam, reached. This is particularly advantageous since it is often necessary for the light beam to have a specific duration in order to detect a target struck by the light beam.

If there is no excess gas pressure on the pressure piston, i.e. the gas pressure on the piston falls below a certain threshold, the pressure piston is activated by the spring force of the

Piston spring moved back to the rest area. As soon as the plunger leaves the contact area, it is in the rest area, which means that the electrical circuit

interrupted and the light source is deactivated. No light beam is emitted in the rest area. The rest area can be defined by a rest start position and an rest end position, the pressure piston not necessarily having to reach the rest end position.

The pressure piston can touch a contact spring in the contact area in order to close the electrical circuit. Any elastic element can be regarded as a contact spring. The use of a spiral spring as a contact spring is particularly advantageous. The pressure piston thus touches the contact spring as soon as it enters the contact area. If the pressure piston penetrates further into the contact area, the contact spring is compressed by the pressure piston and thus of course still touched. If the pressure piston leaves the contact area and thus reaches the rest area, the contact spring is no longer touched and the electrical circuit is opened. This contact itself can, for example, bring about electrical contacting of the pressure piston and the contact spring, with which, for example, the electrical circuit can be closed directly via the pressure piston and the contact spring. For this purpose, it is advantageous if the contact spring is designed to be electrically conductive.

The housing preferably comprises a pulse tube and a front tube, the light source being arranged in the front tube and the gas inlet opening being arranged in the pulse tube.

A connection between the pulse tube and the front tube can be made, for example, via a thread or a bayonet lock. The housing can thus be opened in a simple manner by removing the front tube from the pulse tube. Components of the light module can then be exchanged, even if the light module is mounted on an airsoft weapon or a firearm, since the pulse tube can remain in the airsoft weapon or firearm during this time.

The housing can comprise a battery and / or an accumulator for supplying energy to the circuit.

This is advantageous because no external power supply is required. A battery compartment can also be provided which includes both a light source and batteries. If the housing comprises a front tube and an impulse tube, then preferably after a

Removing the front tube removes the entire battery compartment and reinserts it. Depending on the structure of the light module, first the light source and then the

Battery compartment can be removed.

The electrical circuit can be routed via the pressure piston and / or the housing.

The electrical circuit can, for example, be closed directly via the pressure piston. In particular when using a contact spring, the electrical circuit can be closed via a contact between the pressure piston and the contact spring. Furthermore, the pressure piston can be in electrical contact with the housing, with which the housing can also be integrated into the electrical circuit.

An elongated hole extending in the longitudinal direction can be arranged in the housing.

The elongated hole can serve to reduce the excess gas pressure.

A transverse pin can be arranged in the pressure piston which, when the pressure piston is moved, moves along the elongated hole and restricts the movement of the pressure piston.

If the cross pin reaches one end of the elongated hole, the plunger cannot move any further. The range of motion (including the rest area and the contact area) of the pressure piston can thus be restricted in a simple manner.

An airsoft weapon can comprise a light module according to the invention, with a

Inner barrel of the airsoft gun is replaced by the light module

The light module according to the invention can thus be used by replacing an inner barrel of an airsoft weapon with the light module.

Since the inner barrel is replaced by the light module, it is not necessary to attach an adapter to an existing inner barrel of a gas-powered airsoft gun. Since the module is not mounted in front of the muzzle of an inner barrel, the overall length and the weight distribution along the airsoft weapon changes, at best, slightly. Since the

Light source is preferably positioned centrally in the light module, the light source points in the same direction as the replaced inner barrel. In contrast to light modules arranged on the inner barrel, this means that the alignment of the light source does not need to be adjusted.

The inner barrel is preferably connected to the outer barrel by means of a mouth nut. Is the muzzle nut on the muzzle outside of the airsoft gun

arranged, it can be clearly indicated that the airsoft gun is not a real firearm. Furthermore, it is advantageous if the color of the orifice nut is matched to the color of the laser (red, green, blue, orange, infrared, etc.). The housing of the light module preferably has the same external dimensions as an inner barrel of an airsoft weapon, with the light module naturally also being able to be longer or shorter than the inner barrel.

An exchange of elements of the light module, for example the batteries, one

Battery compartment, etc. can be made by removing the mouth nut and pulling out respective elements. After removing the muzzle nut, it can also become the laser module from the Airsoft gun.

The light module can also be attached to a pseudo-cartridge chamber of an airsoft weapon. This is particularly advantageous if the airsoft gun does not have an inner barrel to be replaced, as is often the case with airsoft guns. Of course, the light module can also be attached to both the pseudo cartridge chamber and the outer barrel of an airsoft weapon.

The light module according to the invention can also be used with a firearm by inserting it into the barrel of the firearm and attaching it.

The light module can therefore not only replace an original inner barrel of an airsoft weapon, but can also be inserted into the barrel of a real firearm. Furthermore, instead of ballistic ammunition, gas pressure ammunition, which is used when a shot is fired

Releases overpressure, the real firearm can be used in combination with the light module for training purposes. To this end, the light module can be used, for example, using a

Muzzle nut to be attached to the muzzle.

In addition or instead, the light module can also be attached to the cartridge chamber of the firearm. This can be done by means of a counter cone which is arranged in the (usually conical) transition between the cartridge chamber and the barrel in order to center the light module in the barrel

The gas overpressure for activating the laser diode is preferably from a

Air energy cartridge delivered. An air energy cartridge is a cartridge that is similar to a real cartridge, but is pressurized with excess gas. This pressure can escape from the cartridge head when the air energy cartridge is activated. This is done, for example, by striking a hammer or a striker

Firearm on the cartridge base, analogous to firing ballistic ammunition.

In pistols and semi-automatic or fully automatic rifles, the air energy cartridge also ensures that the slide is repeated and thus that the air energy cartridges are ejected. In the case of revolvers or non-automatic rifles, the air energy cartridge must be loaded and removed manually. Since the light module is not connected to the If the barrel has to be attached, e.g. screwed, no adjustment of the light source is necessary. If the light module is pushed into the barrel of a weapon and fastened, the light module or the light source is already centered and aligned with the barrel, so that no additional adjustment of the light source is necessary. Since the light source is preferably arranged centrally at the first end of the housing, the light beam points exactly in the direction of the barrel. This enables the light beam to reproduce the trajectory and impact of a projectile well.

In the case of handguns, the weight of the light module is also distributed over the entire barrel and thus offers a far better weight distribution than known systems that are attached to the muzzle. The light module is advantageously designed in such a way that it protrudes slightly from the barrel of the weapon, preferably by two to seven millimeters. As a result, it can be recognized from the outside that the firearm has been modified in such a way as to not fire live ammunition. Furthermore, the light source is more accessible and can be readjusted more easily.

The light module can also be adapted to the length of the inner barrel or the barrel of a real firearm.

Depending on the intended use of the light module, the piston spring and / or the

Pressure piston can be adapted both to the gas overpressure of a respective airsoft weapon or firearm and to the desired contact duration. The strength of the piston spring and / or the length of the piston spring and / or the pressure piston can thus be adapted. For example, carbon dioxide generates more pressure than so-called flow gas, the pressure occurring depending on the filling quantity of the carbon dioxide cartridge. An air energy cartridge, on the other hand, can generate an excess gas pressure of over 100 bar.

Furthermore, an adaptation to different barrel lengths can be made by using pressure pistons of different lengths. The overpressure occurring on the pressure piston depends on the position of the pressure piston in the rest area. The closer the pressure piston comes to lie on the pseudo-cartridge chamber, the higher the overpressure that occurs, since a lower volume on the gas inlet side naturally means a higher pressure. Thus, with a smaller volume (which may be necessary for a shorter one due to the design), a significantly stronger piston spring becomes

Can be used than with a larger volume (e.g. for a longer run).

In any case, the pressure piston spring must be designed in such a way that the electrical circuit is closed in the contact area.

Preferably, however, the other parts of the light module according to the invention can be used for different overpressures, barrel lengths and (airsoft) types of weapons, which of course brings with it great production-related advantages. The housing of the light module is advantageously cylindrical and has an outer diameter of 8 mm. Thus, the attachment to a pseudo cartridge chamber can be carried out easily and can be carried out by an airsoft gun owner himself. Since the (e.g. worn out) inner barrel is often changed during maintenance work in order to increase the hit rate, the Airsoft gun owner is usually familiar with changing an inner barrel. For example, a real 9mm caliber weapon can also be provided with a light module with an outer diameter of 8mm.

The housing preferably has an inside diameter of 6 mm. The inside diameter is particularly preferably smaller than 6 mm, which means that M6 threads can be used in the light module.

The present invention is explained in more detail below with reference to FIGS. 1 to 4b, which are advantageous by way of example, schematically and not by way of limitation

Show embodiments of the invention. It shows

1 shows an external view of a light module,

2a shows a cross section through the light module, with the rest area

Plunger,

2b shows a cross-section through the light module, with the pressure piston located in the contact area,

Fig.3a, b a light module that replaces the inner barrel of an airsoft weapon,

4a, b a light module which is arranged in the barrel of a firearm.

Fig.1 and Fig.2a, b each show an external view and a cross section of a

Embodiment of the light module according to the invention, each also having a

enlarged section is shown. The light module can be used both as an inner barrel in airsoft weapons and as an insert barrel for real firearms, which is why the housing G of the light module is preferably designed to be cylindrical. The light module comprises a light source 1 which is connected to the housing G. This means that the light source 1 is arranged in or on the housing G, for example screwed into the housing G. The light source 1 is preferably arranged in a centered manner on a first axial end of the housing G. The housing G has a gas inlet opening 30 which is preferably arranged at a second axial end of the housing G opposite the first end. The light source 1 is designed to emit a light beam when activated, with no light beam being emitted when the light source 1 is deactivated. A laser diode is preferably used as the light source 1, with which a laser beam is emitted as the light beam. Usually, laser diodes in particular as light sources 1 do not have a preset lighting duration and only emit the light beam during activation.

A piston spring 12 is arranged in the housing G. The piston spring 12 holds the

Pressure piston 4 in a rest area R when the pressure piston 4 through the

Gas inlet opening 30 is not subjected to an excess gas pressure p1. The gas pressure pO prevailing at the pressure piston 4, which is of course lower than that

Gas overpressure p1 is called normal pressure. The piston spring 12 is thus relaxed at normal pressure or at least only tensioned so slightly that the pressure piston 4 is located in the rest area R. The piston spring 12 can be firmly connected to the pressure piston 4. Alternatively, the piston spring can be firmly connected to the housing G.

The pressure piston 4 is exemplified here as a cylinder with an associated therewith

cylindrical head shown with increased diameter. This enables a simple connection of the piston spring 12 to the pressure piston 4, since this can rest on the piston head, in particular since the piston spring 12 is designed here as a spiral spring. Any other elastic element that can be mechanically tensioned and relaxed could of course also be used as the piston spring 12.

If, however, an excess gas pressure p1 (FIG. 2b) acts on the pressure piston 4 through the gas inlet opening 30, the piston spring 12 is tensioned and the pressure piston 4 is moved from the rest area R into the contact area K. If the pressure piston 4 is in the contact area K, an electrical circuit i is closed, whereby the light source 1 is activated. If, on the other hand, the pressure piston 4 is in the rest area R, the electrical circuit i is open, with the result that the light source 1 is deactivated (FIG. 2a). A contact spring 11 can be provided which is touched by the pressure piston 4 located in the contact area K, with which the electrical circuit i is closed. The contact spring 11 itself can also be part of the electrical circuit i, in particular if it is designed to be electrically conductive and is touched by the pressure piston 4 located in the contact area K. This is particularly advantageous if the pressure piston 4 in the contact area K is also part of the electrical circuit i, as described further below.

In the figures, the position of the bottom of the pressure piston 4 is used to determine whether the pressure piston 4 is in the contact area K or the rest area R. Of course, any other reference point of the pressure piston 4 could be used instead, with the contact area K and rest area R also having to be adapted. The housing of the light module 1 can comprise a front tube 2 and an impulse tube 3, which is connected to the front tube 2. The connection between pulse tube 3 and front tube 2 can be made via a thread or a bayonet lock. The light source 1 is preferably screwed into the front tube 2 via a thread. Batteries and / or accumulators 7 for supplying power to the circuit or the light source 1 can also be accommodated in the front tube 2. The batteries and / or accumulators 7 can

can be exchanged, for example, by removing the front tube 2 from the pulse tube 3. As a result, for reasons of clarity, only “batteries 7” are used instead of “batteries and / or accumulators 7”, which of course does not exclude the use of accumulators or a mixing of batteries and accumulators.

The movement of the pressure piston 4 can be limited by the transverse pin Q arranged in the housing G. The housing G can also at least one in the longitudinal direction

have arranged elongated hole LL, which can serve to reduce the gas pressure p1.

If a cross pin Q is arranged on the pressure piston 4, this can interact with an elongated hole LL arranged in the housing G in order to restrict the movement of the pressure piston 4. In particular, the elongated hole LL can also be arranged in such a way that it is fundamentally covered by the pressure piston 4 when the latter is in the rest area R. Furthermore, the elongated hole LL is advantageously released when the pressure piston 4 is located in a partial area of the contact area K. In this way, the excess gas pressure p1 can be reduced when the pressure piston is located in the partial area of the contact area K. The sub-area and the elongated hole LL are preferably designed such that the excess gas pressure p1 is kept below a predetermined maximum pressure.

The pressure piston 4 is preferably electrically conductive. The electrical circuit i can then lead via the pressure piston 4 and the housing G, a special embodiment of the electrical circuit i being shown in FIGS. 1-4b. The closed one

Circuit i is shown in Fig. 2b. The (here electrically conductive) pressure piston 4 is in electrical contact with the housing G here. A first pole P1 of the light source 1 is in electrical contact with the housing G (here with the front tube 2). Furthermore, there is a second pole P2 of the light source 1, for example via an electrically conductive spring element

5, in contact with a first battery terminal 71 of the battery 7. The spring element 5 can be isolated from the front tube 2 by an insulating body (not shown). The second battery pole

72 of the battery 7 is in electrical contact with a contact spring 11 (here electrically conductive)

Contact, wherein the contact spring 11 can be isolated from the housing via an insulating body 6. The electrical contact between the second battery terminal 72 of the battery 7 and that of the

Contact spring 11 takes place here via a conductive connection 8, with one here as well Insulating body 6 for the electrical insulation of the conductive connection 8 from the housing G, or the pulse tube 3, is provided. The individual insulating bodies 6 can of course also be connected to one another, for example riveted or screwed, or designed as an insulating body 6. The conductive connection 8 is shown here as an arrangement of cylinders connected to one another; of course, the conductive connection can also have a different shape or the second battery terminal 72 can be connected directly to the contact spring 11.

The pressure piston 4 is positioned in the rest position R (FIG. 2a) in such a way that it is in contact with the housing G (here pulse tube 3), but does not touch the contact spring 11. For this purpose, the piston spring 12 is provided, which holds the pressure piston 4 in the rest area R in the unstressed state, whereby the pressure piston 4 is not in contact with the contact spring 11. The piston spring 12 is preferably made more rigid than the contact spring 11. In the illustrated embodiment, the electrical circuit i would be from the first battery pole 71 via the spring element 5, the second pole P2 of the light source and further from the first pole P2 of the laser diode 1 via the housing G (ie via the front tube 2 and pulse tube 3) via the pressure piston 4, the (in this case electrically conductive) contact spring 11 and the conductive connection 8 lead to the second pole 72 of the battery 7. However, since the

Pressure piston 4 is located in the rest area R, in contrast to FIG. 2a, this is not in contact with the contact spring 11, so that the electrical circuit is open and the light source 1 is thus deactivated.

Contact spring 11, conductive connection 8, etc. can be held in the desired position in the housing G using screws. The insulating bodies 6, 11 can also be held in a form-fitting position in the housing or in the impulse tube 3 by means of screws. The same screws can also be used to hold both the contact spring 11, the conductive connection 8 and the insulating body 6 in position. For this purpose, for example, a suitable spacer sleeve can be screwed onto the respective screws.

Thus, before and after a shot is fired, the pressure piston 4 is in the rest area R, with the result that the electrical circuit i is opened. A gas overpressure p1 can now act on the pressure piston 4 via the gas inlet opening 30. This excess gas pressure p1 can be generated, for example, by a flow gas or compressed carbon dioxide, as is customary with airsoft weapons.

In Fig. 3a, b, a light module is shown which is inserted into the outer barrel A of an airsoft weapon and thus replaces the inner barrel. A gas overpressure source (eg C02 cartridge or flow gas container) can be arranged in the handle of the airsoft weapon. If the trigger is pulled, a valve opens in the gas overpressure source, which means that Gas subjected to excess gas pressure p1 reaches the gas inlet opening 30 of the housing G (here of the pulse tube 3) via the pseudo-cartridge chamber AS. An elastic sealing element can be provided at the gas inlet opening 30, which ensures that the majority of the excess gas pressure p1 actually reaches the housing G from the excess gas pressure source. The functioning of the light module itself is described with reference to FIGS. 1 and 2a, b.

As is shown in FIGS. 4a, b, an air energy cartridge 21 can also be used in a firearm (here a 9mm Luger). An air energy cartridge 21 contains air which is subjected to excess pressure, which escapes when a shot is fired and thus generates an excess gas pressure p1. It is of course also possible to use a popping cartridge (blank cartridge) or any cartridge which generates an excess gas pressure p1. Since there are no electronic components in the housing G in the area of the pressure piston 4, this is not a problem. For safety and pollution reasons, however, an air energy cartridge 21 is usually preferable to popping cartridges.

In Fig. 4a, b, the light module is plugged into the barrel L of the firearm. Since the

Firearm has a cartridge chamber with ammunition, the light module can be made shorter than a light module used in an airsoft weapon. This can be achieved by shortening the housing G (or the pulse tube 3) accordingly. A muzzle nut 20 arranged on the muzzle and / or a centering screw 19, which preferably squeezes O-rings against the inside of the barrel L, can serve to center the light module. When the trigger is operated, the hammer or firearm strikes the bottom of the cartridge, which activates the mechanism of an air energy cartridge 21. The air energy cartridge LEP gives the

Gas overpressure p1, which is passed through the gas inlet opening 30 of the housing G to the pressure piston 4. The gas inlet opening 30 can also be designed as a bore in the centering screw 19. The centering screw 19 can also serve as a rear movement limiter for the pressure piston 4. The (fully compressed) piston spring 12 can limit the forward movement of the pressure piston 4.

The light module 1 is preferably arranged in the L barrel of a firearm in such a way that an air energy cartridge with a shortened cartridge head can be loaded, but not a real cartridge with a full cartridge head. In the latter case the front part of the chamber is already covered by part of the laser module, e.g. the centering screw 19 is already occupied. With a laser module 1 arranged in this way in the barrel, it is then not possible to load live ammunition with a cartridge head that is not shortened.

In a real firearm that is semi or fully automatic, the

Gas overpressure p1 moves the mass of the slide, the air energy cartridge 21 from pulled from the cartridge chamber and ejected, the slide brought to its rearmost position, the cock cocked and a new air energy cartridge 21 fed from the magazine. Thus, when using an air energy cartridge 21 in one

Firearms require a higher gas overpressure p1 than an airsoft weapon. The piston spring 12 can therefore be made stronger in a light module designed for firearms than in a light module designed for an airsoft weapon. When used in firearms, elongated holes LL in the housing G can therefore also be dispensed with in order to utilize the prevailing gas overpressure p1 as well as possible.

However, it can basically be the same for real firearms and airsoft guns

Light module can be used. If necessary, the thickness of the piston springs 12 and / or the pressure piston 4 can be adapted and / or the housing or the front tube 2 and / or the pulse tube 3 can be changed, the other components for

Firearms and airsoft guns are equally suitable.

Claims

1. Light module comprising a housing (G) with a gas inlet opening (30) and a pressure piston (4) which is movable within the housing (G) from a rest area (R) into a contact area (K) and vice versa and comprising one with the Housing (G) connected light source (1) for emitting a light beam, characterized in that a piston spring (12) is provided, which is relieved of a normal gas pressure acting on the pressure piston (4) and the pressure piston (4) in the rest area (R) and with a gas overpressure (p1) acting on the pressure piston (4) through the gas inlet opening (30), the piston spring (12) is compressed and the pressure piston (4) moves into the contact area (K) that is located in the contact area (K) Pressure piston (4) an electrical circuit (i) is closed, with which the light source (1) is activated, and that when the pressure piston (4) is in the rest area (R), the electrical circuit (i) is open, whereby the light source (1) deactivated i st.

2. Light module according to claim 1, characterized in that the pressure piston (4) in the contact area (K) touches a contact spring (11) in order to close the electrical circuit (i).

3. Light module according to claim 1 or 2, characterized in that the housing (G) comprises a pulse tube (3) and a front tube (2), the light source (1) in the front tube (2) and the gas inlet opening (30) in the pulse tube (3) is arranged.

4. Light module according to one of claims 1 to 3, characterized in that the

Housing (G) comprises a battery and / or an accumulator (7) for supplying energy to the circuit.

5. Light module according to one of claims 1 to 3, characterized in that the electrical circuit leads via the pressure piston (4) and / or the housing (G).

6. Light module according to one of claims 1 to 5, characterized in that im

Housing (G) an elongated hole (L) extending in the longitudinal direction is provided.

7. Light module according to claim 6, characterized in that a transverse pin (Q) is provided in the pressure piston (4), when the pressure piston (4) is moved along the elongated hole (L) and restricts the movement of the pressure piston (4).

8. Use of a light module according to one of claims 1 to 7 with an airsoft

Weapon, whereby an inner barrel of the airsoft weapon is replaced by the light module.

9. Use of a light module according to claim 8, wherein the inner barrel is connected to an outer barrel (A) of the airsoft weapon by means of a muzzle nut.

10. Use of a light module according to one of claims 1 to 7 with an airsoft weapon, the light module being attached to a pseudo-cartridge chamber of the airsoft weapon.

11. Use of a light module according to one of claims 1 to 7 with a firearm, wherein the light module is inserted and fixed in the barrel (L) of the firearm.