Trigger device for a buttstock loader

In the case of a trigger device for a buttstock loader including a trigger rod for triggering an impact device of the buttstock loader with a first end of the trigger rod, it is suggested that the trigger device further includes a trigger lever, wherein the trigger rod is at least indirectly connected to the trigger lever by means of a pivot joint, wherein the trigger lever includes a trigger tongue and an extension wherein the pivot joint is arranged substantially between the trigger tongue and the extension, wherein the extension comprises a first abutment surface for at least indirectly abutting against a second abutment surface of the buttstock loader, so that upon actuation of the trigger tongue with a first force the trigger rod moves with a second force, which second force is greater than the first force, in the direction of the first end of the trigger rod.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of Austrian Patent Application No. A 50717/2020, filed Aug. 26, 2020, entitled “TRIGGER DEVICE FOR A BUTTSTOCK LOADER”, which is incorporated by reference in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a trigger device.

2. Description of the Related Art

Rear-loading rifles, in particular bullpup rifles such as the Steyr AUG rifle or rifles of the Thales assault rifle series, have a trigger system or a trigger device that is guided linearly in a recess in the stock. This trigger system is used to actuate a striker, which is usually inserted as a module in a rear section of the stock. The striker essentially comprises a housing, a cock, striker springs, a breaker system, a detent system, a bolt catch, pins, a safety catch and a trigger spring. By design, the parts are matched to each other to provide enough firing energy and to make the system functionally safe and drop-proof. Since such weapon systems were originally designed as military and official weapons, not too much attention was paid to the trigger characteristics and trigger resistance.

The trigger blade is firmly connected to the trigger rod. When the trigger blade is actuated, the trigger rod is moved in the direction of the striking device. Due to its size and the large number of individual components, the weight of the parts, the weight of the trigger system is significantly higher than that of many non-linear trigger systems. Due to the linear triggering, the drop safety is negatively affected by the mass inertia of this heavy trigger device. Therefore, as a rule, the spring force of the striking device is often increased in order to achieve a higher drop safety.

However, the disadvantage of this is that the trigger resistance is greatly increased by the increase in spring force. Inexperienced shooters have difficulty keeping their sights on the target when operating such a trigger device and often trigger unintentional bursts of fire with automatic weapons.

It is known to improve the trigger characteristics by means of different spring sets, so-called trigertamers or polished components by reducing the trigger resistance of the firing mechanism.

However, the major disadvantage of these components for the impact device is that the drop safety is reduced because the fine-tuning of the components and springs is lost. It is therefore not expedient to modify the trigger mechanism in order to achieve a lower trigger resistance, since this always has a negative effect on drop safety.

SUMMARY OF THE INVENTION

It is therefore the task of the invention to specify a trigger device of the type mentioned at the beginning, with which the disadvantages mentioned can be avoided, with which the trigger resistance can be reduced without the drop safety being negatively influenced.

According to the invention, this is achieved by a trigger device for a buttstock loader that includes a trigger rod for triggering a striking device of the buttstock loader with a first end of the trigger rod. The trigger device includes a trigger lever. The trigger rod is at least indirectly connected to the trigger lever by a pivot joint, and the trigger lever has a trigger tongue and an extension. The pivot joint is arranged substantially between the trigger tongue and the extension. The extension includes a first abutment surface for at least indirectly abutting against a second abutment surface of the buttstock loader, so that upon actuation of the trigger tongue with a first force the trigger rod moves with a second force, which second force is greater than the first force, in the direction of the first end of the trigger rod.

This results in the advantage that the trigger resistance is significantly reduced without negatively affecting the drop safety. As a result, the striking device does not have to be modified, whereby the drop safety is not negatively influenced. In that the trigger device comprises a trigger lever, the trigger rod being connected to the trigger lever at least indirectly by means of a pivot joint, the trigger lever having a trigger tongue and an extension, the pivot joint being arranged substantially between the trigger tongue and the extension, the trigger device can be operated particularly easily, thereby increasing the aiming accuracy of a shooter. This allows leverage of the trigger and a particularly good gear ratio. Instead of applying a lot of force quickly over a short distance, the force can thus be applied in a metered manner over a longer distance. Due to the leverage effect, the applied force is further increased.

Due to the design of the trigger system according to the invention, the trigger system can be easily installed in an existing buttstock loader, in particular in a Steyr AUG rifle or in rifles of the Thales assault rifle series, and the existing trigger system can be easily replaced by the trigger system according to the invention.

The invention further relates to a buttstock loader.

The invention therefore also has the task of specifying a buttstock loader of the type mentioned above, with which the disadvantages mentioned can be avoided, with which safe handling and precise shooting is made possible.

According to the invention, this is achieved by a buttstock loader having a trigger device according to the description above.

The advantages of the buttstock loader correspond to the advantages of the above-mentioned trigger device.

The subclaims concern further advantageous embodiments of the invention.

Express reference is hereby made to the wording of the patent claims, whereby the patent claims are incorporated by reference into the description at this point and are deemed to be reproduced verbatim.

If the distance from the center of a finger contact surface of the trigger blade to the pivot joint is greater than the distance from the center of the first stop surface to the pivot joint, this has the advantage of enabling a particularly good ratio, in particular greater than or equal to2. This leverage allows the trigger blade to be actuated particularly precisely and thus a shot to be fired in a particularly controlled manner.

DETAILED DESCRIPTION

FIGS.1to11show at least parts of a preferred embodiment of a trigger device1for a buttstock loader2comprising a trigger rod3for triggering a striking device of the buttstock loader2with a first end of the trigger rod3, wherein the trigger device1further comprises a trigger lever, wherein the trigger rod3is connected to the trigger lever4at least indirectly by means of a pivot joint, wherein the trigger lever4has a trigger tongue6and an extension7, the pivot joint5being arranged substantially between the trigger tongue6and the extension7, the extension7having a first abutment surface8for at least indirectly bearing against a second abutment surface9of the buttstock loader2, so that when the trigger tongue6is actuated with a first force, the trigger bar3moves with a second force, which second force is greater than the first force, in the direction of the first end of the trigger bar3.

A buttstock loader2comprising a trigger device1is also provided.

This has the advantage that the trigger resistance is significantly reduced without negatively affecting the drop safety. Through this, the striking device does not have to be modified, whereby the drop safety is not negatively influenced. By the fact that the trigger device1comprises a trigger, wherein the trigger rod3is at least indirectly connected to the trigger4by means of a pivot joint, wherein the trigger4has a trigger tongue6and an extension7, wherein the pivot joint5is arranged substantially between the trigger tongue6and the extension7, the trigger device1can be actuated particularly easily, whereby the aiming accuracy of a shooter is increased. This allows for leverage of the trigger4and a particularly good gear ratio. Instead of applying a lot of force quickly over a short distance, the force can thus be applied in a metered manner over a longer distance. Due to the leverage effect, the applied force is further increased.

Due to the constructive design of the trigger device1according to the invention, the trigger device1can be installed in an existing buttstock loader2, in particular in a Steyr AUG rifle or in rifles of the Thales assault rifle series, particularly easily in just a few steps, and it is particularly easy to replace the existing trigger device there with the trigger device1according to the invention.

A breech-loading rifle2is known in particular as a bullpup rifle. This designates a type of long gun in which the breech and often also the magazine are located behind the grip in the shoulder rest. The trigger device1is used to trigger the buttstock loader2. The trigger rod3, in particular a first end of the trigger rod3, triggers the striker device of the buttstock loader2. The trigger device1comprises the trigger lever4, wherein the trigger rod3is at least indirectly connected to the trigger lever4by means of a pivot joint5. The trigger lever4has a trigger tongue6and an extension7, wherein the pivot joint5is arranged substantially between the trigger tongue6and the extension7. The extension7has a first stop surface8for at least indirect support on a second stop surface9of the buttstock loader2. When the trigger blade6is actuated with a first force, the trigger rod3moves with a second force, which second force is greater than the first force, in the direction of the first end of the trigger rod3. The trigger lever4thus serves for lever transmission. The trigger resistance is the resistance that must be overcome to trigger a shot.

Preferably, the trigger bar3can be designed as a trigger fork18. This makes it particularly easy to arrange the trigger lever4or the extension7between the fork of the trigger fork18and it is not necessary to create a recess for the trigger lever4or the extension7.

For this purpose, it can also be provided that the trigger fork18is somewhat recessed so that the trigger lever4or the extension7are arranged freely movable in the trigger fork18.

It may also be preferable to remove a pressure arm19of the trigger fork18in order to reduce the overall weight of the trigger device1. It has been found that one pressure arm19is already sufficient for safe operation.

Alternatively, to reduce the overall weight of the trigger device1, multiple recesses can be created in the trigger fork18.

It may be particularly preferred that the distance of the center of a finger support surface10of the trigger blade6to the pivot joint5is greater than the distance of the center of the first stop surface8to the pivot joint5, which is exemplarily shown inFIGS.1to4and8. The finger resting surface10of the trigger blade6is that surface on which a user rests his finger when operating the trigger4. Due to the greater distance of the center point of the finger support surface10to the pivot joint5than the distance of the center point of the first stop surface8to the pivot joint5, a particularly good transmission ratio, in particular greater than or equal to2, and thus a particularly good leverage effect is made possible. This leverage allows the trigger blade6to be actuated particularly precisely and thus a shot to be fired in a particularly controlled manner.

For this purpose, it can be provided that a longitudinal extension of the trigger blade6is longer than a longitudinal extension of the extension7, which is exemplarily shown inFIG.4.

It may be provided that the trigger rod3has a length of at least 5 cm, preferably at least 10 cm, in particular at least 15 cm.

It may be particularly preferred that the fume cupboard1comprises a fume cupboard housing11. The trigger housing11is preferably made of plastic or metal, in particular aluminum. Preferably, it can be provided that the trigger housing11has a recess for the trigger lever4or the extension7.

Particularly preferably, it can be provided that the trigger4is rotatably mounted to the trigger housing11by means of the pivot joint5.

It may further be provided that the trigger rod3is firmly connected to the trigger housing11.

It can preferably be provided that a pressure pin12for transmitting a pressure force between the first stop surface8and the second stop surface9is guided linearly in the trigger housing11and is mounted so as to be movable parallel to the trigger rod3. For this purpose, it can preferably be provided that the trigger housing11has a recess, in particular a cylindrical recess, for the pressure pin12, which is shown by way of example inFIGS.4,10and11. The pressure pin12can preferably be made of metal, in particular aluminum, or plastic. The cylindrical recess allows the pressure pin12to be mounted in the trigger housing11in a particularly simple and secure manner After actuation of the trigger4, the pressure pin12moves linearly and parallel to the trigger rod3.

Particularly preferably, provision can be made for the first stop surface8to bear against a first end13of the pressure pin12and for a second end14of the pressure pin12to bear against the second stop surface9to be arranged on an end face of the trigger housing11.

When the trigger blade6is actuated, the first stop surface8presses on the first end13of the pressure pin12and the pressure pin12presses with its second end14on the second stop surface9of the buttstock loader2, as a result of which the trigger device1, and thus also the trigger rod3, is moved in the direction of the striking device and the striking device is triggered.

Thus, a rotary movement of the trigger blade6and thus of the trigger lever4about the rotary joint5triggers a linear movement of the trigger rod3in a trigger direction. The trigger direction here is the direction in which the trigger bar3is pulled after actuation of the trigger lever4. In other words, the trigger direction runs from the second end14of the pressure pin12to the first end13of the pressure pin12or from the barrel opening of the firearm along the barrel to a shoulder piece of the firearm.

It may preferably be provided that an axis of the swivel joint5is normal to the pull-off direction of the pull-off rod3.

It can preferably be provided that the trigger device1has a safety device15comprising a safety spring16, the safety device15at least indirectly inhibiting a movement of the trigger rod3in a trigger direction in a locked position.

The safety spring16can preferably be designed as a leaf spring, which is shown by way of example inFIGS.5to7and10. When the trigger4is actuated, the safety spring16is pressed in the trigger direction, creating a clearly defined pressure point. When this pressure point is overcome, a shot is fired. In the exemplary illustration inFIG.5, the trigger lever4is in the rest position, in the exemplary illustration inFIG.6, the trigger lever4is released to such an extent that the pressure point is reached, and in the exemplary illustration inFIG.7, the trigger mechanism1is released.

Particularly preferably, it can be provided that the safety device15comprises a safety slide20.FIGS.9ato9cshow examples of different versions of the safety slide20.

Preferably, the safety device15can be made somewhat narrower than the original safety device and a stop can be made in an opening for the trigger or in the trigger housing11. This narrower safety device15is pressed in the trigger direction by the safety spring16. When the trigger blade6is actuated, the trigger housing11together with the trigger fork18is pressed up to this stop. Shortly before the firing mechanism is triggered, the safety device15must now also be pressed in the direction of the firing mechanism. This additional spring pressure of the safety spring16creates a clear pressure point shortly before the shot is released.

The safety device15can preferably be a 3-position safety device, which is exemplarily shown inFIG.9a. The first position is secured, and the second position is with a pressure point, whereby only single fire can be released. The third position is without a pressure point, so that in a fully automatic version it is also possible to fire continuously. This 3-position safety allows the shooter to choose between “with pressure point” and “without pressure point”.

FIG.9bshows an example of a 2-position safety device, whereby a choice can be made between a safe position and a position with a pressure point.FIG.9cshows an example of a 2-position safety device, whereby a choice can be made between a safe position and a position without a pressure point.

Preferably, by moving the safety slide20, it is possible to select between a secured position, a position with a pressure point and a position without a pressure point. In the position with the pressure point, the trigger housing11in particular abuts against the safety device15.

It may be particularly preferred that the safety slide20and the safety spring16are arranged to be displaceable in the trigger direction. When the trigger4is actuated, the safety slide20and the safety spring16in particular are displaced along the trigger direction.

The safety spring16additionally increases the perceptible resistance at the pressure point, allowing a particularly well-aimed single fire to be delivered.

Preferably, it may be provided that a trigger point at which a shot is fired is located between the pressure point and an end point.

In particular, it may be provided that a first lateral longitudinal side of the safety slide20is formed mirrored to a second lateral longitudinal side of the safety slide20. Thus, the safety slide20can be used rotated by 180° so that the safety device15can be adapted for use by a left-handed person.

It may preferably be provided that the buttstock loader2comprises a buttstock loader housing17, wherein substantially in the buttstock loader housing17the trigger housing11is arranged, which is exemplarily shown inFIG.8.

In particular, the buttstock loader housing17substantially corresponds to the stock of the firearm.

It may be further preferred that the trigger housing11is arranged to be displaceable in the trigger direction relative to the rear shaft loader housing17. When the trigger lever4is actuated, essentially the entire trigger housing11is displaced relative to the rear shank loader housing17in the trigger direction.

When assembling the trigger mechanism1in the rear stock loader housing17, the trigger mechanism1together with the trigger lever4is preferably first inserted from above into a recess in the rear stock loader housing17and then the trigger rod3, in particular the trigger fork18, is inserted through another recess in the rear stock loader housing17from behind through a through opening in the trigger housing11. The parts assembled in this manner are then screwed together with a cap screw21.

The following are principles for understanding and interpreting representational revelation.

By means of an ordering number word, for example “first”, “second” or “third”, in particular a feature X or an object Y is distinguished in several embodiments, unless otherwise defined by the disclosure of the invention. In particular, a feature X or subject matter Y with an ordering numeral in a claim does not mean that an embodiment of the invention covered by that claim must have a further feature X or a further subject matter Y, respectively.