EP4028708B1 - Lock system - Google Patents

Description

The invention relates to a lock system for a firearm according to the preamble of claim 1.

The lock system for a firearm is to be understood below as meaning the arrangement of functional components that serve to fire the shot, including the components that serve to secure the system and in particular to temporarily fix the components used to fire the shot.

Firearms have different lock systems depending on their design. WO2008086545 A1 discloses a toggle lock system.

In the case of so-called drop-barrel weapons, there are flash locks, box locks and side locks. By tilting the barrel of a break-barrel weapon, for example a shotgun, a break-barrel rifle, a double rifle or a treble, the locks are cocked, i.e. a hammer is moved against the spring pressure of a main spring into a non-released, spring-loaded position and fixed there with a detent . This detent position can be released with the aid of the trigger, so that the hammer hits a firing pin under the pressure of a firing spring, which emerges from a firing pin opening and presses in the primer of a cartridge and thereby ignites it.

In the case of rotary chamber breeches of bolt-action rifles, the firing pin itself is brought into operative connection with the firing spring or is in operative connection with it, with the firing spring opening (in rare cases also closing) the breech and thus locking the chamber in the barrel or in a case head is stretched. A firing pin nut is usually located at an end of the chamber axially opposite the cartridge chamber, which is moved backwards when the breech is opened or closed and thus tensions the firing spring. When the bolt breech is pushed into the sleeve, in which the rotary bolt breech is mounted so that it can move axially, the firing pin nut is blocked axially by a detent, so that the tension of the mainspring is retained. By pulling the trigger, the catch is usually lowered so that the firing pin is abruptly moved forward under the spring pressure of the firing spring, emerges from the breech head of the chamber and ignites the cartridge.

In the case of swivel head breeches, such as are usually found on semi-automatic firearms and, in some cases, also on fully automatic firearms, the recoil of the breech causes a hammer to be pressed into a latched position and held there by a latch against the pressure of a firing spring. If the breech snaps back into the closed state, in particular due to the action of a breech spring, and locks with the barrel or a case head, the hammer can also pivot forwards in the direction of the firing pin and strike the firing pin by releasing the locking connection by actuating a trigger Thus, in the case of a rotating head breech, the firing pin is spring-mounted within the rotating head breech and, by striking the hammer on the back, also shoots forwards out of the breech head and ignites a cartridge via the primer.

The breech can thus be an integral part of the breech, as in the case of rotary chamber breeches of repeaters (where the firing pin nut is sometimes also referred to as the breech), but it can also be functionally separate from the actual breech, as in break-open rifles.

In the following, the lock is to be understood as that functional unit which interacts to trigger the shot and also includes a fuse.

In particular, in the case of weapons that have a rotating head bolt, such as so-called straight-pull bolt-action rifles, semi-automatic or fully automatic firearms or rifles, the structure is determined by the functions.

Such firearms have a barrel to direct the projectile and also ensure the development of gas pressure, then a breech that tightly closes the barrel backwards at the moment of firing and holds the cartridge in place, magazine or other Cartridge feed area from which the bolt, moving towards the barrel to lock it, pushes a cartridge out and into the barrel chamber before locking the chamber backwards and then the lock, which includes the hammer, usually a trigger bar or a comparable component, and the trigger. The detent and counter-detent are formed on the hammer and on the trigger rod, which interact to hold the hammer back in the cocked state of the hammer and thus the lock. In addition, the firing spring is present, which keeps the hammer under tension when cocked in order to enable a very rapid movement towards the firing pin.

Usually, handguns are then followed by a shoulder piece in order to be able to draw the weapon into the shoulder when the shot is fired, in order to enable precise target acquisition on the one hand and cushioning of the recoil on the other.

Due to this predetermined sequence of the functional parts, a minimum overall length is predetermined, at least between the cartridge chamber, magazine well, lock and shoulder rest attachment due to the type of construction.

With conventional locks, a wide variety of safeguards are possible. The safest is the so-called firing pin safety, because it secures the last functional component in front of the cartridge's primer against displacement, even if the lock is accidentally released. There is also the so-called rod safety, which secures the trigger rod so that if the trigger is accidentally released, the trigger rod is not moved and thus the catch of the trigger rod and the counter catch of the hammer or the firing pin nut are not disengaged. Even the rod safety is less secure than the firing pin safety, since it cannot be ruled out that external influences, such as falling or falling, will nevertheless loosen the latching connection and the hammer hits the firing pin and fires a shot.

A third known safety is the trigger safety, in which only the trigger blade is secured against movement, so that accidental pressure on the trigger blade does not move the trigger bar. This safety has an even lower safety potential compared to the two aforementioned safety devices, since the mechanical chain of trigger bar and hammer or firing pin nut is not secured here and can also be loosened by impact or impact.

In order to make such locking systems obsolete, so-called manual cocking systems were developed, in particular by the Blaser company, in which the firing spring is cocked before the shot is fired, while the locking connection between the hammer piece and trigger rod or firing pin nut and trigger rod is already in place, but the entire system does not fire even when the trigger is pulled because the force of the firing pin spring is lacking. Such systems are advertised and described as being more secure than manual belay systems, but this is not strictly correct. If the shooter forgets to move the manual cocking slide back to the starting position after firing the first shot or after deciding not to fire, the system is completely unsecured and fully cocked. In terms of accident prevention, this is a system that is by no means safer than a manually locking system and, depending on the shooter, is even significantly less safe.

The object of the invention is to create a lock system that allows a firearm with a shorter overall length, has improved security and is also robust and insensitive.

The object is achieved with a lock system having the features of claim 1.

Advantageous developments are characterized in the subclaims dependent thereon.

In the following, when referring to a firearm from the front, this means in the direction of the shot or closer as seen from the muzzle.

In the following, when speaking of back or more behind, this means against the direction of the shot or further away from the muzzle.

In the following, when speaking of above or on the upper side, this means the side of the weapon that points upwards in a conventional shooting position. This is usually the side of a weapon that has aiming aids, such as a telescopic sight or a reflex sight or rear sight and front sight, or has the line of sight when the shooting position is correct.

In the following, when speaking of below or underside, this describes the side of the weapon that points downwards when the gun is in the correct or usual shooting position and usually has the pistol grip, the trigger and the magazine well.

If we speak of the side in the following, this is the side of the weapon when the shooting position is correct, such as the ejection window for cartridges.

It is clear to a person skilled in the art that this relationship also applies if the weapon is held differently, put down or otherwise in a different spatial orientation.

The lock system according to the invention is constructed in such a way that the actual components required for firing the shot, such as the hammer, main spring, trigger rod, etc., are arranged above a slideway. The slide track is the track in which the slide runs when it is moved backwards from the position that closes the cartridge chamber and is then moved forwards again to feed a cartridge from a magazine that is in the magazine well in order to insert the cartridge into insert the cartridge chamber and close the barrel backwards behind the cartridge chamber.

According to the invention, the safety mechanism is also moved from the bottom to the top, with both the effect of the trigger and the effect of a safety slide being mechanically translated from the bottom to the top, around the breech, the barrel or a barrel mount.

According to the invention, the hammer unit of the lock, i.e. the hammer or a lever arm acting as a hammer and lever elements connected thereto are designed as toggle levers. If the hammer or the lever is moved into the cocked position and the mainspring is thus cocked, a trigger bar engages with the hammer or this lever in a latching manner, with the trigger bar being pressed into the detent by the pressure of a spring.

The invention makes use of the fact that a toggle lever has a dead center when it is fully extended. If it is pivoted in one direction or the other, it assumes a mechanically more stable state from which it can only be brought back over the dead center by external influence. The toggle lever is the essential feature of the invention.

According to the invention, the safety device works in such a way that the toggle lever mechanism of the hammer and the mechanical parts that are operatively connected thereto are pressed upwards against the direction of impact, which is a downward pivoting movement, and is held there. So the toggle lever is pushed up past the dead center against the impact direction and remains there in a mechanically stable position. Not only does the safety bar ensure that the hammer cannot be moved in the direction of the firing pin because the movement is blocked, but the special feature of the toggle lever ensures that any force acting on the hammer is exactly the opposite, i.e. away from the firing pin.

Thus, according to the invention, a particularly secure fuse is created that is far superior to known security systems and manual cocking systems. The advantage of the invention is that a simply constructed, robust lock for a firearm, in particular a repeating firearm, is formed, which has a particularly reliable safety device and is also very robust due to its construction.

The invention thus relates to a lock system for a firearm with an arrangement of at least two lever arms, the lever arms being articulated to an axis or shaft in the manner of a toggle lever, with the toggle lever formed in this way being pivotable on both sides of a dead center in which the arrangement is maximally stretched is, wherein one of the lever arms is designed as a striking piece for a firing pin.

Advantageously, a pivoting direction on one side of the dead center closer to the firing pin defines a striking position and pivoting to the other side of the dead center defines a safety position.

It is further preferred if the at least one lever arm acts on the axis of rotation under the pressure of a spring, so that the dead center must be overcome against the pressure of the spring.

It is also advantageous if, in the striking position, a lever with a detent is detachably designed to interact with a counter-detent or surface of a trigger rod.

In a further advantageous embodiment, the system comprising the lever arms is arranged on a weapon top above a breech track.

Advantageously, to translate a trigger movement on a trigger blade to a trigger rod arranged above the breech track, there is a trigger lever that transfers the movement of a trigger slide located on the underside of the weapon to the upper side of the weapon, with the trigger lever on a , a free end of the trigger rod is arranged diametrically opposite the free end and is articulated there and the trigger transmission lever in the trigger slide is also articulated on the underside of the weapon, the trigger transmission lever being guided around the components and/or a slideway between the upper and lower sides of the weapon, so that a movement of a Trigger slide is translated in an axial direction in an opposite axial movement of the trigger rod.

In a further advantageous manner, when the lock is in a cocked, non-released position, the underside of a free end of the trigger bar engages in a detent or a detent recess in the cylindrical area of one lever, with the underside of one end of the trigger bar acting as a counter-locking element for a Recess formed, transversely, i.e. with the first axis of rotation, which acts as the axis of rotation of the hammer, interacts axially running flat locking surface, so that the lock holds the lever arrangement against the pressure of a spring on a hammer rod, which is connected to the other lever arm in an articulated manner and is held by the trigger rod when the surface of the trigger bar is in contact with the surface of the lever.

Furthermore, it is advantageously possible for the trigger rod to be arranged such that it can be moved axially into the latching engagement between the surfaces and axially out of the engagement, with the trigger rod being spring-loaded in the direction of engagement, so that the latching connection can be released against the pressure of a spring must take place.

Advantageously, there is also a safety device, with the safety arrangement having a safety bar, with the safety bar having means which are designed to interact with counter-means of one of the levers, such that the means activate the toggle lever arrangement of the hammer arrangement for safety from the striking position beyond the dead center in can pivot the safety position and unlocking from the safety position over the dead center in the impact position.

In one embodiment of the invention, the lock has a hammer assembly, which has a hammer and at least one hammer operating lever arm, the hammer being pivotable about an axis of rotation toward and away from a firing pin, and at least one hammer operating lever arm being articulated on the hammer with an axis of rotation, wherein the axis of rotation is arranged on the hammer remote from the axis of rotation, the hammer and the hammer actuating lever arm forming a toggle lever which is pivotable about the axis of rotation on either side of a dead center

In a further embodiment of the invention, the safety has two inclined surfaces as a means, which have a slanted position in the same direction and the means on the hammer assembly is a laterally projecting pin, so that the hammer assembly can be pushed past dead center by the pin sliding along an inclined surface moves into the safety and when moving the safety bar in the firing position, the inclined surface moves the pin and thus the hammer assembly from the safety position over the dead center in the firing position or firing position.

Advantageously, it is also possible that in the safety position, after pivoting past the dead center, the pin rests on the bottom of a groove in the safety bar, which blocks the path of the pin and thus the hammer assembly into the striking position.

In a further development it is provided that the safety arrangement on the safety bar has an anti-twist device for a hammer arrangement or the breech of the firearm located in the safety arrangement, the breech having a locking pin for this purpose and the safety bar having a pawl, lug or pocket which is in the safe state around the locking pin or a direction of rotation blocking applies to the locking pin.

Furthermore, it can advantageously be provided that a safety transmission lever is arranged on the safety bar in order to transfer the movement of a safety slide located on the underside of the weapon to the upper side of the weapon to the safety bar, the safety transmission lever being arranged at a free end of the safety bar and articulated on the safety slide on the underside of the weapon is, wherein the safety transmission lever around the breech and / or a cartridge chamber and / or other components or the breech track is led around and articulated on the safety slide.

Advantageously, the trigger transmission lever and the safety transmission lever can be C-shaped, ring-shaped, bracket-shaped or shaped like a question mark.

In one embodiment, the toggle lever arrangement is formed by means of the hammer arm and the guide lever arm, the hammer arm being an elongate component which is connected at one end to the hammer rod and the hammer arm can be pivoted at its end about an axis of rotation, the axis of rotation having two cheeks, which are arranged at one end of the hammer rod and delimit the end between them and penetrate the end so that the hammer arm is rotatable about the axis or shaft.

Advantageously, there is an angled striking surface at a diametrically opposite end of the striking lever arm, with a rotary guide shaft being arranged at a distance from the end or from the striking surface towards the end, which extends through the striking lever arm, so that the free End of the hammer arm forms the hammer.

It is also advantageous if the hammer arm with the rotary guide shaft is rotatably arranged on the guide lever arm, the guide lever arm being a plate-like element with two side surfaces, an upper side and a lower side as well as a front end area and a rear end area, extending from the rear end area to the front end area a receiving slot for receiving the striking lever arm extends over a partial length of the guide lever arm.

In addition, it is advantageous if the hammer arm and the guide lever arm form the toggle lever arrangement, with the guide lever arm being pivotable about the laterally protruding shaft stub and the hammer lever arm being pivotable up and down about the shaft and both being connected to one another via the shaft, with the Knee lever arrangement formed by the hammer arm and the guide lever arm is acted upon by spring pressure via the hammer rod and a firing spring arranged around it, the guide lever arm being fixedly arranged on the chassis of a firearm by the stub shaft, if the hammer arm and the hammer rod can be moved in the firing direction against the firing direction to a limited extent by pivoting the toggle lever arrangement.

In addition, it is advantageous if a recess is arranged in the guide lever arm from the front side, introduced from the underside, the recess being designed in such a way that it extends into the guide lever arm, the recess having a recess roof towards the top, wherein the recess roof has a front portion and a rear portion, the front portion and the rear portion being formed such that the recess roof has a front recess roof portion and a rear recess roof portion which are at an angle to each other and in particular at an angle of 25° ° to 50 ° are formed inclined to each other.

In one embodiment, it is advantageous if a safety bar is provided for pivoting the guide lever arm and for bringing about a secured and an unsecured position, the safety bar having a control bead at one end, the bead being designed in such a way that it connects with the recess and is designed to interact with the recess roof in a corresponding manner.

In addition, it can be advantageous if the toggle lever arrangement of striking lever arms and guide lever arms is in a secured position when the shaft is above the shaft stub and is in an unsecured ready-to-fire position when the shaft or its axis of rotation is below the shaft stub or whose axis of rotation is located and in a deflected position when the rotary shaft or guide rotary shaft is below or completely below the stub shafts, whereby the hammer rod is located furthest forward in the direction of fire.

Figur 1

stark schematisiert den Aufbau des Schlosses mit dem Kniehebelschlagstück, der Abzugstange, der Abzugsübersetzung und einem Schlagbolzen;

Figur 2

die Anordnung nach Figur 1 in abgeschlagenem Zustand;

Figur 3

die erfindungsgemäße Sicherungseinrichtung mit dem Kniehebelschlagstück; eine Sicherungsstange, dem Sicherungshebel und einem Drehkopfverschluss;

Figur 4

stark schematisiert die Wirkungsweise der Sicherung;

Figur 5

eine weitere vorteilhafte Ausführungsform eines Schlosses für eine Schusswaffe mit einem Kniehebel;

Figur 6

die Ausführungsform nach Figur 5 in einer gesicherten Stellung;

Figur 7

die Ausführungsform nach Figur 6 in einer perspektivischen Ansicht;

Figur 8

die Ausführungsform nach Figur 5 in einer entsicherten Stellung;

Figur 9

die Ausführungsform nach Figur 8 in einer perspektivischen Ansicht von einer schräg gegenüberliegenden Sicht;

Figur 10

die Ausführungsform nach Figur 9 in einer perspektivischen Ansicht;

Figur 11

die Ausführungsform nach Figur 5 in abgeschlagener Position in Kontakt mit einem Schlagbolzen;

Figur 12

die Ausführungsform nach Figur 11 in einer Ansicht von unten;

Figur 13

die Ausführungsform nach Figur 12 in einer Ansicht, zeigend zusätzlich Teile des Verschlusses, in dem der Schlagbolzen gelagert ist;

Figur 14

den Sicherungs- und Führungshebel der Ausführungsform nach Figur 5 in einer Ansicht von unten;

Figur 15

den Sicherungs- und Führungshebel der Ausführungsform nach Figur 5 in einer Ansicht von oben;

Figur 16

den Sicherungs- und Führungshebel der Ausführungsform nach Figur 5 in einer perspektivischen Ansicht; und

Figur 17

den Führungshebelarm nach Fig. 16 in einer perspektivischen Ansicht von unten.

The invention is explained by way of example with reference to a drawing. They show:

figure 1

strongly schematized the construction of the lock with the toggle lever hammer, the trigger bar, the trigger transmission and a firing pin;

figure 2

according to the arrangement figure 1 in severed condition;

figure 3

the safety device according to the invention with the toggle lever hammer; a safety bar, the safety lever and a rotating head lock;

figure 4

highly schematized the mode of operation of the fuse;

figure 5

a further advantageous embodiment of a lock for a firearm with a toggle lever;

figure 6

according to the embodiment figure 5 in a secured position;

figure 7

according to the embodiment figure 6 in a perspective view;

figure 8

according to the embodiment figure 5 in an unlocked position;

figure 9

according to the embodiment figure 8 in a perspective view from an obliquely opposite view;

figure 10

according to the embodiment figure 9 in a perspective view;

figure 11

according to the embodiment figure 5 in the fired position in contact with a firing pin;

figure 12

according to the embodiment figure 11 in a view from below;

figure 13

according to the embodiment figure 12 in a view showing additional parts of the breech in which the firing pin is mounted;

figure 14

the safety and guide lever of the embodiment figure 5 in a view from below;

figure 15

the safety and guide lever of the embodiment figure 5 in a view from above;

figure 16

the safety and guide lever of the embodiment figure 5 in a perspective view; and

figure 17

the guide lever arm 16 in a perspective view from below.

The lock system 1 according to the invention has a hammer assembly 2, a hammer actuating lever assembly 3, a hammer rod 4 and a trigger rod 5. A trigger transmission lever 6 and a trigger slide 7 are also present.

The hammer assembly 2 comprises a hammer 8 which is rotatable about a first axis of rotation 9 which acts as the hammer axis of rotation. The hammer piece 8 has a hammer arm 10 extending away from the first axis of rotation 9 and a cylinder section area 12 which is arranged around the first axis of rotation 9 .

The beating arm 10 extends away from the cylindrical area 12 , the beating arm 10 tapering from the width in the area of the first axis of rotation 9 with two inclined steps 15 . The inclined steps 15 thereby taper the beating arm 10, the inclined steps 15 running obliquely from an upper side of the beating arm to an underside, so that the oblique steps extend from top to bottom in the direction of the extension of the beating arm. At a lower end of the sloping steps 15 or adjacent thereto, there is an axis of rotation 17 on the beating arm 10 . Arranged around the axis of rotation 17 on both sides of the tapered area of the beating arm 10 are two hammer piece actuating lever arms 16 which extend away from the axis of rotation 17 beyond the beating arm 10 .

One hammer actuating lever arm 16 is sufficient to practice the invention.

The hammer actuating lever arms 16 have a width which corresponds approximately to the width of the steps 15 or is slightly smaller.

A hammer cheek 20 is arranged on both sides, lying on the outside of the cylindrical area 12 . The hammer cheek 20 is also penetrated by the axis of rotation 9 and has a cylindrical area which is aligned with the cylindrical area 12 and extends essentially in the same direction as the hammer arm 10 and can also be designed in one piece with the hammer 8 .

The hammer cheeks 20 extend up to the axis of rotation 17 and are also penetrated by the axis of rotation 17 so that the hammer lever arms 16 are delimited laterally by the hammer 8 and the hammer cheeks 20 .

The hammer actuating lever arms 16 have aligned bores at their ends 16a through which a rotary axis 19 can pass and define a connecting element 18 between them, the hammer rod 4 being arranged transversely to the rotary axis 19 in the connecting element 18 and extending away from the hammer arrangement.

The hammer assembly 2, consisting of the hammer arm 8, the hammer cheeks 20, the pivot 9 on the one hand and the hammer actuating lever arms 16, the pivot 17, the pivot 19, the connecting piece 18 and the hammer rod 4 on the other hand, form a toggle lever arrangement such that when the hammer rod moves 4 toward the hammer arm 10, the hammer actuating lever arms 16 engage the pivot axis 17 and deflect the hammer assembly 2 downward toward a firing pin 30. However, this only works if the toggle lever arrangement is not moved upwards beyond the dead center but is below it, which is the case when the axis of rotation 17 is below the axis of rotation 9 .

The striking arm 10 hits a striking surface 31 of the firing pin 30 with a striking surface 14 .

A carrier pin 21 is arranged laterally next to the axes of rotation 9 and 17, but closer to the axis of rotation 9, which protrudes laterally beyond the corresponding hammer piece cheek 20. The driver pin 21 is mounted at least in the hammer cheek and/or in the hammer cheek and the hammer arm.

The hammer rod 4 is spring biased toward the hammer arm 8, for example by a striker spring (not shown) disposed around the hammer rod 4 and bearing against a fixed component by allowing the hammer rod 4 to slide axially.

The trigger rod 5 is present to trigger the striking movement or initially to inhibit it. The trigger bar 5 engages with the underside of a free end 22 in a catch or a catch recess 25 in the cylindrical area of the hammer 8, the underside 23 of a free end 22 of the trigger rod 5 acting as a counter-locking element for a flat locking surface 26 formed by the recess 25 and running transversely, ie with the first axis of rotation 9 .

If the underside 23 rests on the surface 26, the hammer assembly 2 is held by the trigger bar 5 against the spring pressure on the hammer rod 4 and thus the hammer actuating lever arms 16. The trigger rod 5 can be displaced axially out of engagement with the surface 26 or the recess 25 and can be displaced back into it.

If the trigger bar 5 is moved out of the catch 25, the hammer arm 10 is abruptly moved downwards via the hammer piece actuating lever arms 16 by the hammer piece rod 4 into a breech track and its surface 14 strikes the surface 31 of the firing pin 30, whereby the shot is fired. The firing pin 30 is located in a breech ( 4 ), whereby the breech is moved after the shot has been fired manually or by gas as a gas pressure loader or by recoil as a recoil loader against the direction of the shot and thereby acts on the firing arm 10 and pivots it back up against the pressure of the spring around the firing piece rod 4 into the starting position ( figure 1 ) and thus tightens the lock again.

The trigger rod 5 is spring-loaded, so that the engagement of one end 22 in the recess 25 is canceled against the spring pressure and the hammer rod 4 rests against the hammer 8 or the cylindrical area 12 of the hammer 8 after the trigger is pulled in such a way that when Pivoting the hammer arm 8 by the breech (not shown), when the surface 26 comes into the area of the underside 23, the hammer rod 4 snaps back into the recess 25 with its free end 22, so that the cocked position is locked again.

In order to transfer a movement of a trigger, which is usually operated with a finger, to the top of the weapon, according to the invention ( figures 1 , 2 ) a trigger transmission lever 6 is present, which transfers the movement of a trigger slide 7, which is located on the underside of the weapon, in particular in a rail arrangement (not shown), to the top of the weapon.

The trigger transmission lever 6 is arranged on an underside 23 diametrically opposite the free end 22 of the trigger rod 5 and is mounted there in an articulated and, in particular, rotatable manner.

For example, the trigger transmission lever 6 reaches through a bore 24 and is rotatably mounted in it.

On the underside of the weapon, the trigger step-up lever 6 is also articulated in the trigger slide 7 and in particular the trigger step-up lever 6 also passes through a hole there or is articulated with an actuating section 6a in a corresponding joint recess 7a.

So that a movement of the trigger slide 7 against the firing direction causes a movement of the trigger bar 5 in the firing direction and thus the dissolution of the locking connection between the free end 22 and the recess 25, the trigger transmission lever 6 has a corresponding abutment or lever bearing around which it rotates.

The trigger transmission lever 6 can be designed in such a way that it encompasses the components that are located between the lock on the upper side of the weapon and the trigger slide 7 arranged on the lower side of the weapon. These components can in particular be a barrel extension, a barrel with a cartridge chamber, the breech or an area in which the breech runs, namely the breech track.

For this purpose, the trigger transmission lever 6 is designed, for example, as a ring which passes through the bore 24 of the trigger rod 5 and in the same way either passes through the trigger slide 7 or is articulated with the actuating section 6a in the opening 7a.

Instead of a ring-shaped design of the trigger transmission lever 6, it can also be C-shaped or bent in some other way or shaped like a question mark or the like, with the bent part preferably having a radius that is sufficient to accommodate the usually cylindrical components that are located between the top and Are located underside to embrace and then continues with the section 6a in the direction of the trigger slide 7.

In order to secure the triggering process described above, a securing arrangement 40 is present.

The safety arrangement 40 comprises a safety rod 41, a safety transmission lever 42, a safety slide 43 and the driver pin 21.

The backup arrangement ( figures 3 , 4 ) is a safety bar 41 arranged in particular parallel to the trigger bar 5, with the safety bar 41 being movable axially in relation to the longitudinal axis of the weapon in the same way as the trigger bar 5. The safety bar 41 is flat and elongated with narrow sides pointing up and down and broad sides , which are arranged laterally.

The safety bar 41 is arranged adjacent to and to the side of the hammer cheek 20 having the driving pin 21, preferably in the immediate vicinity or slightly abutting.

The safety bar 41 has a recess 45 from its upper narrow side 44 adjacent to the hammer arrangement 2, which recess extends, for example, by the width of the driver pin 21 downwards. In the area of a free end 46 of the safety bar 41, the recess is continuous up to a lower narrow side 47, wherein the recess 45 does not extend from broad side to broad side of the safety bar 41, but rather the safety bar 41 is continuous on the broad side facing away from the hammer cheek 20 is, so that the recess 45 or groove 45 extends only over a partial width of the safety bar 41. The recess 45 deepens in the region of the free end 46, as already explained, towards the narrow side 47 lying below, with an inclined surface 48 being formed.

At a distance from the sloping surface 48, the end region 49 of the securing rod 41 is again fully formed, with a surface 49a running sloping from bottom to top being formed.

The width of the recess 45 and the complete opening in the area of the free end 46 is dimensioned such that it approximately corresponds to the amount by which the driver pin 21 protrudes from the hammer cheek 20 .

As already explained, the securing rod 41 is designed to be axially movable. In an unlocked position ( figure 3 ) the hammer assembly 2 is in a cocked and ready-to-fire state. In this state, the driver pin 21 is located between the bevels 48, 49a and can thus be pivoted on the underside or downwards without touching the safety bar 41. A shot can therefore be fired in this position.

In order to secure the lock, the safety bar is pushed towards the hammer assembly 2, as a result of which the driver pin 21 slides along the inclined surface 48 into the recess 45. As a result, the entire knee joint arrangement is raised in such a way that the axis of rotation 17 is located above the axis of rotation 9 . As a result, the toggle lever arrangement is pivoted over the dead center in the counter-blow direction, from which it—according to the nature of the toggle lever—cannot return without external influence.

If, for whatever reason, the hammer rod 4 were to move towards the hammer arm 8 or the toggle lever received an impulse in the direction of dead center, the hammer 8 would also be moved away from the firing pin 30 . The force of the hammer rod 4 thus has an additional securing effect, since the hammer 8 is actively held away from the firing pin by the spring pressure of the firing spring. In addition, the driver pin 21 is located in the recess 45, which also makes movement in the direction of the firing pin impossible.

In order to unlock the weapon, the safety bar is moved in the firing direction until the driver pin 21 is again in the area between the inclined surfaces 48 and 49a0. Even in this state, a shot cannot be fired, since the hammer rod 4 or the hammer spring around the hammer rod 4 (not shown) continues to hold the toggle lever arrangement of hammer arrangement and hammer activation lever arrangement 3 away from the firing pin due to the spring pressure.

In order to move the lock into the firing position, the safety bar 41 is moved further in the firing direction, so that the driver pin 21 slides along the slope 49a and the lock or the toggle lever arrangement made up of the hammer arrangement and the hammer activation lever arrangement moves past the dead center of the toggle lever (downwards ) is moved to the firing position. In this firing position, the free end of the trigger bar 5 is again in the recess 25, so that the free end 22 and the latching surface 26 are now supported on one another under the pressure of the firing spring (not shown).

In a preferred embodiment, the safety arrangement 40 has a twist lock for the closure via the safety bar 41 . The breech is used to close the barrel to the rear and feed the cartridge into the cartridge chamber. The latch 35 preferably has a locking pin 36, the locking pin 36 being located on a surface of the latch body. Preferably, the security bar 41 has a catch or pocket formed on the underside, which in the secured state is arranged around the security pin 36 or around it such that the security pawl 37 or security pocket 37 prevents twisting of the closure in the opening direction.

In addition, a safety transmission lever 42 is arranged on the safety rod 41 at a free end 45a of the safety rod 41 , the free end 45a of the safety rod 41 lying diametrically opposite the free end 46 .

The safety stepping lever 42 is designed around the breech and/or a cartridge chamber, for example, and can be round, C-shaped or the like in the same way as the trigger stepping lever 6, where it rests in a hammer arm 51 of the safety bar 41, which either passes through the safety bar passes through the broad sides or is introduced by a lower edge 47 and rests on an opposite guide lever arm 52 in an opening of a bore or a recess of the safety slide 43.

The safety transmission lever 42 also has a pivot point between the recesses 46 and the safety slide 43 in order to cause a rotation about a pivot point, so that a pushing movement of the safety slide 43 against the firing direction moves the safety bar 41 in the firing direction and thus the lock system 1 is unlocked.

The advantage of the invention is that a very robust, secure lock with high operational reliability and great robustness is created, with the arrangement of the lock system 1 on the top of a weapon and the translation of a trigger or safety movement from the bottom to the top of the Weapon the weapon is very compact.

A further advantageous embodiment of the invention has a lock system 1a in which, to a certain extent, the functions have been interchanged.

The lock system 1a forms the toggle lever arrangement by means of a striking lever arm 51 and a guide lever arm 52 . The hammer arm 51 is an elongate component which is connected to the hammer rod 4 at one end 53 . At the end 53, the hammer arm 51 can be pivoted about an axis of rotation 54, which has two cheeks 55, which are arranged at one end of the hammer rod 4 and delimit the end 53 between them and the end 53 reaches through. The impact lever arm 51 can thus be rotated about the axis 54 or shaft 54 .

At a diametrically opposite end 56 of the hammer arm 51 there is an angled striking surface 57 . At a distance from the end 56 or from the impact surface 57 towards the end 53, but at a significantly less distance from the end 56, a rotary guide shaft 58 is arranged, which extends through the impact lever arm 51. The free end 56 of the hammer lever arm, which protrudes beyond the shaft 58 and has the striking surface, is therefore the actual hammer piece.

The hammer arm 51 is rotatably arranged on the guide lever arm 52 with the guide rotating shaft 58 .

The guide lever arm 52 ( Figures 14 - 16 ) is a flat plate-like element with two side faces 60, 61, a top side 62 and a bottom side 63, and a front side 64 and a rear end area 65. From the rear end area 65 to the front side 64, the guide lever arm 52 extends over a partial length approximately in the middle between the side faces 60, 61 a receiving slot 66 for receiving the impact lever arm 51. In the area of the rear end area 65 there is a transverse bore 67 which extends from the surface 60 to the surface 61 and serves to receive the rotary guide shaft 58.

The front side 64 of the guide lever arm 52 is rounded and thickened between the surfaces 60 and 61, so that the surfaces 62, 63 or the upper side 62 and the lower side 63 thicken in the area of the front side 64 to form a rather cylindrical area 68.

To the side of the thickened cylindrical area 68 of the front side 64, the side surfaces 60, 61 extend laterally and quasi concentrically to the cylindrical area 68, respectively a cylindrical stub shaft 69, 70 defining a guide lever arm axis of rotation. With the stub axles 69, 70, the guide lever arm 52 is rotatably mounted on a chassis of a firearm (not shown).

Arranged approximately at the level and along the extension of the axis of rotation 71 is a detent 72 in the cylindrical region 68 , which extends a little into the region 68 along the axis of rotation 71 and also projects into the shaft ends 69 , 70 . The detent 72 also forms a wall 73 orthogonal thereto, which extends upwards from the detent 72 .

The detent 72 preferably runs in relation to the upper side 62 of the guide lever arm 52 or the lower side 63, sloping slightly outwards.

In relation to the plane that is spanned between the axis of rotation 71 on the one hand and the axis of rotation of the receiving bore 67 or the axis of the rotary guide shaft 58 on the other hand, the detent 72 is angled downwards and outwards, or at an angle of 3 to 25°.

From the wall 73, running obliquely downwards to the surface 63 and approximately in the transverse center of the guide lever arm 52 between the front side 64 and the rear end region 65, there is a threaded bore 74, which serves to accommodate a grub screw, with which a trigger rod to be described later the catch length and thus the trigger travel can be screwed in to adjust it.

The bore 74 is in this case, for example, arranged closer to a surface 61, i.e. between the surface 61 and the slot 66 adjacent to the slot 66.

Between the surface 60 and the slot 66, a recess is made from the underside 63 from the front side 64, which extends, for example, over approximately half the extension of the guide lever arm 52 from the front side 64 to the rear side 65. The recess is designed in such a way that the lower side 63 including the cylindrical area 68 is left free in this area. The recess 75 extends from the underside of the cylindrical region into the guide lever arm 52 , the recess 75 having a recess roof 76 towards the upper side 62 . The recess roof 76 has a front area 77 and a rear area 78 and a transition 79 therebetween. The front area 77 extends from the wall 73 in the shape of a semicircular arc into the cylindrical area 68 of the guide lever arm 52 , with the front area 77 running obliquely to an upper side of the cylindrical area 68 . Approximately at the height of the shaft stubs 69, 70, the front recess roof area 77 reaches the transition area 79, in which the spatial orientation of the recess roof 76 changes, so that the transition area 79 up to a recess end 80 also includes the rear recess roof area 78 in the direction of an underside 63 semicircular cross-section towards the end of the recess 80, so that the front recess roof area 77 and the rear recess roof area 78 are formed at an angle to one another and in particular are formed inclined at an angle of 25 to 50° to one another.

It goes without saying that the recess roof 76 is designed in the shape of a semicircle or a segment of a circle for reasons of practicability and in particular for reasons of production, but these areas can also be designed flat without further ado.

When assembled ( figure 5 ) the impact lever arm 51 and the guide lever arm 52 form the toggle lever arrangement. The guide lever arm 52 can be pivoted upwards and downwards about the shaft stubs 69, 70, the impact lever arm 51 can be pivoted upwards and downwards about the shaft 54 and both are connected to one another via the rotary guide shaft 58.

The toggle lever arrangement formed by the hammer arm 51 and the guide lever arm 52 is subjected to spring pressure via the hammer rod 4 and a firing spring (not shown) arranged around it.

The guide lever arm 52 is fixed to the chassis of a firearm by the stub shafts 69, 70, while the hammer arm 51 and the hammer rod 4 are movable in the direction of fire and against the direction of fire, limited by pivoting the toggle lever arrangement.

Analogous to the first described toggle lever arrangement, the toggle lever arrangement consisting of the impact lever arm 51 and the guide lever arm 52 is in a secured position when the guide rotary shaft 58 is located above the shaft stubs 69, 70 ( figures 5 , 6 , 7 ) and in an unsecured, ready-to-fire position when the rotary guide shaft 58 or its axis of rotation is below the shaft stubs 69, 70 or their axis of rotation ( figures 8 , 9 , 10 ) and in a cut off position ( figures 11 , 12 , 13 ) when the rotating shaft or guide rotary shaft 58 below or completely below the shaft stubs 69, 70, whereby the hammer rod 4 is located furthest forward in the direction of fire and the striking surface 57 of the end 56 of the hammer lever arm 51 serving as a hammer is located adjacent to a firing pin 30 ( figures 11 , 12 , 13 ).

A safety rod 85 is provided for pivoting the guide lever arm 52 and thereby bringing about the secured and unsecured position. The securing rod 85 is, for example, elongate and square and/or rectangular in cross-section, with an upper side 86 and an underside 87. Continuous guide slots 89 are provided parallel to the upper side 86 or underside 87 in the side walls 88, which can be fitted with corresponding bolts, shafts or the like ( not shown) are reached through and keep the safety rod 85 only axially movable, but otherwise fixed to a gun chassis.

The safety bar 85 has a front end 90 on the firearm side, with a recess 91 for the lever 42 (not shown) already described with the first embodiment being present in the region of the front end 90 on the underside 87 .

In addition, the safety bar 85 has a rear end 92.

Between the front end 90 and the rear end 92, adjacent to the recess 91 towards the rear end 92 and approximately at the level of a slot 89, the underside is formed with a control surface 93 which controls the height of the securing rod between the underside 87 and the upper side 86 widened from the area of the recess 91 with a kind of ramp.

In the region of end 92, safety bar 85 is configured with a rounded portion 94 on its upper side 86, rounded portion 94 being semicircular, for example, and/or having at least two bevels 94 on both sides, free end 92 of the upper side being formed with a control bead 95 , which protrudes roundly on the upper side.

The bead 95 is designed in such a way that it can interact with the recess 75 and in particular with the recess roof 76 and in particular has a corresponding shape such that it can interact with the recess roof 76 in a form-fitting or full-surface manner.

The width of the safety bar 85 is dimensioned so that it corresponds to the width of the recess 75 or is slightly smaller, with the bead 95 being curved in such a way that it can slidably interact with the front recess roof area 77 and the rear recess roof area 78, with a flat Formation of the roof areas of the bead is optionally curved only in the longitudinal direction, but is flat in the transverse direction.

The safety bar 85 works as follows. A starting position is the unlocked, cocked position of the lock, in which, for example, after loading or firing a shot and repeating, the lock is in a ready-to-fire state ( figures 8 , 9 , 10 ).

In this position, the control bead 95 is located at the entrance to the recess 75 in the area of the wall 73. The rotary guide shaft 58 is located below the axis of rotation 71 of the guide lever arm 52. If the lock is now to be secured, the safety bar 85 is pushed into the recess 75 against the firing direction shifted in. As a result, the bead 95 first slides along the upper side of the front recess roof area 77 before it gets into the transition area 79 and then hits the rear recess roof area. Since the safety bar 85 cannot move up or down, the guide lever arm 52 is pivoted about the axis of rotation during a further forward movement, since the bead 95 slides along the sloping rear recess roof area 78 and thereby lifts the guide lever arm 52. This movement pushes the toggle lever arrangement of hammer arm 51 and guide lever arm 52 against the pressure of the firing spring (not shown) onto the hammer rod 4 and brings it into the dead center area, in which the toggle lever arrangement has its greatest length. When the bead 95 is pushed further into the recess 75, the guide lever arm and the hammer lever arm pivot upwards beyond the dead center (supported by the hammer spring), so that the secured position ( figures 5 , 6 , 7 ) is achieved, in which in particular the front recess roof area 77 is supported on an upper side 86 of the securing rod 85, so that further pivoting is not possible. In this position, the toggle lever arrangement consisting of the impact lever arm 51 and the guide lever arm 52 is held by the pressure of the impact spring (not shown). In addition, in this position the bead 95 rests from below in the area of the end 80 of the recess on the rear recess roof area and also prevents pivoting as a result. Thus, this state is secured in two ways.

To get out of this secured position ( Figures 5 - 7 ) to return to the ready-to-fire position, the safety bar 85 is moved in the firing direction, whereby a front face 96 of the bead 95 first enters the area 79 and then the area of the front recess roof area. The front recess roof area is then deflected by the front side 96 of the bead 95 against the force of the striking spring (not shown) and thus the toggle lever arrangement of striking lever arm 51 and guide lever arm 52 is initially deflected to dead center, in which the striking spring experiences the strongest compression and the toggle lever arrangement related has its greatest elongation on the longitudinal axis of the weapon. After the front side 96 of the control bead 95 has completely pivoted the front recess roof area 77, the rotary guide shaft 58 is again below the axis of rotation 71. In this state, the toggle lever arrangement consisting of the impact lever arm 51 and the guide lever arm 52 is not held by the safety bar 85, but by a trigger bar 98 .

The trigger bar 98 is arranged parallel to the safety bar 85, but approximately at the transverse center of the guide lever arm 52. The trigger bar 98 is also a square or rectangular cross-section bar with a free end (front) 99 and a free end (rear) 100. Aligning to the transverse recesses 89 of the safety bar 85, the trigger bar has recesses 101, which are secured by the same bolts how the recesses 89 are penetrated in order to allow an axial movement, but to prevent an upward or downward movement.

In the area of the free end (front) 99, the trigger bar 98 has a recess 102 for a lever 6, with which the trigger bar can be actuated from the underside of the weapon.

At its free end (rear) 100, the trigger bar has an area with a flat undersurface (not shown), which is designed in the manner of the first embodiment of a trigger bar to cooperate with the catch 72 of the guide lever arm 52 against twisting of the guide lever arm 52.

A front face 103 of the pull-off rod 98, which is usually arranged orthogonally to the lower face, can in this case bear against the wall 73 in the region of the bore 74. The position of the trigger bar 98 can be adjusted by means of a screw arranged in the bore 74 and in particular the degree of overlap between the detent 72 and the lower surface in the area of the free end 100 of the trigger bar 98.

The trigger bar 98 and the safety bar 85 can each have an abutment 104 on the upper side in the area of their free ends (front) 99, each of which has a receiving bore 105, in particular for a compression spring (not shown), with which both the safety bar in the direction of a secured position is pressurized and the trigger bar is in a detented position. These compression springs are optional on the trigger bar, but not mandatory.

In addition, in an advantageous embodiment, the lock system 1a has a locking bar 110.

The locking rod 110 runs parallel to the trigger rod 98 and is designed in the same way and also acts like a trigger rod 98, with an abutment 104 and a receiving bore 105 for a compression spring (not shown) also being present. In addition, the locking bar also has a lower surface (not shown) and an end face 103, with which the locking bar can be brought into engagement with the catch 72 in the manner of the trigger bar. The locking bar 110 has a control projection 111 on the underside, with which the locking bar can be brought into and out of the locking engagement and thus the locked position.

The task of the locking bar is to prevent the lock from being knocked off if the lock is not in a front position, but is located behind the lock in the firing direction in relation to the longitudinal axis of the weapon. If the weapon were to be cut off in this state and the breech then moved forward, the breech would hit the broken off hammer arm 51 from behind and possibly damage the lock.

The advantage of this embodiment is that the construction of the toggle lever alone by the impact lever arm 51 and the guide lever arm 52 ensures a comparably simple construction of the toggle lever arrangement.

Another advantage is that the hole in the guide lever arm enables a very reliable, but also energy-saving locking and unlocking of the lock.

Reference List

1

lock system

1a

lock system

2

lever arrangement

3

hammer operating lever assembly

4

hammer rod

5

trigger bar

6

trigger transmission lever

7

trigger slide

8th

lever arm

9

first axis

10

hitting arm

12

cylinder section area

14

face

15

stages

16

Striker Operating Lever Arm / Lever Arm

17

second axis of rotation

18

fastener

19

axis of rotation

20

hammer cheek

21

driving pin

22

free end

23

bottom

24

drilling

25

recess

26

rest area

30

firing pin

31

face

36

locking pin

40

backup arrangement

41

safety bar

42

backup translation lever

43

safety slide

44

upper narrow side

45

recess

45a

free end

47

narrow side

48

sloping surface

49

end area

49a

inclined surface

50

toggle assembly

51

hammer arm

52

guide lever arm

53

end of 51

54

rotary shaft

55

hammer cheeks

56

end of 51

57

face

58

guide rotary shaft

60

side face

61

side face

62

top

63

bottom

64

front

65

rear end area

66

receiving slot

67

cross bore

68

cylindrical area

69

Shaft stub / axle stub

70

Shaft stub / axle stub

71

axis of rotation

72

rest

73

wall

74

Hole for trigger adjustment screw

75

recess

76

recess roof

77

front recess roof area

78

rear recess roof area

79

transition area

80

recess end

85

safety bar

86

top

87

bottom

88

sidewall

89

recess

90

front end

91

recess

92

rear end

93

control surface

94

Bevel / rounding

95

control bead

96

Front face of 95

98

trigger bar

99

free end (front)

100

free end (rear)

101

recess

102

recess

103

face

104

abutment

105

mounting hole

110

locking bar

111

tax advantage

Claims (15)

1. Lock system (1) for a firearm with a lever arrangement (2) of at least two lever arms (8, 52; 16, 51), wherein the lever arms (8, 52; 16, 51) are connected in articulated fashion to a pivot (17) or guiding rotating shaft (58) in the manner of a toggle lever, wherein the thus-formed toggle lever can be pivoted to both sides of a dead point in which the arrangement is maximally extended, characterised in that one of the lever arms (8, 51) is designed as a hammer for a firing pin (30).
2. Lock system according to claim 1, characterised in that a pivoting direction to one side of the dead point closer to the firing pin (30) defines a released position and a pivot to the other side of the dead point defines a safety position, wherein the at least one lever arm (16, 51) acts on the pivot (17, 58) under the pressure of a spring, with the result that the dead point must be overcome in opposition to the pressure of the spring.
3. Lock system according to one of the preceding claims, characterised in that, in the released position, a lever arm (8, 52) with a latch recess (25) or latch (72) is designed to interact in a detachable manner with a latch counterpart or a free end (22) of a trigger bar (5, 98).
4. Lock system according to one of the preceding claims, characterised in that the lock system (1) comprising the lever arms (8, 52; 16, 51) is arranged at a weapon top side above a bolt travel path.
5. Lock system according to one of the preceding claims, characterised in that, in order to transmit a trigger movement on a trigger tongue to a trigger bar (5, 98) arranged above the bolt path, a trigger transmission lever (6) is present which transmits the movement of a trigger slide (7), which is located on the underside of the weapon, to the top of the weapon, wherein the trigger transmission lever (6) is arranged at an underside (23) or free end (99) diametrically opposite a free end (22,100) of the trigger bar (5, 98) and is supported there in articulated fashion and, toward the underside of the weapon, the trigger transmission lever (6) is likewise supported in articulated fashion in the trigger slide (7), wherein the trigger transmission lever (6) is guided around the components lying between the weapon topside and weapon underside and/or around a bolt travel path, with the result that a movement of the trigger slide (7) in an axial direction is converted into a movement, of the trigger bar (5, 98), in an opposite axial direction or into an in particular increased or decreased movement in the same direction.
6. Lock system according to one of the preceding claims, characterised in that in a cocked, unreleased position of the lock system (1), the trigger bar (5, 98) engages with the underside (23) of a free end (22, 100) in a latch (72) or a latch recess (25) in the cylindrical region (68) of the lever arm (8) or the guide lever arm (52), wherein the underside (23) of a free end (22, 100) of the trigger bar (5, 98) interacts as latch counterpart element with a flat latch surface (26) or latch (72) formed by the latch recess (25), i.e. running transversely axially relative to the pivot (9), with the result that the lock system (1) holds the lever arrangement (2), in opposition to the pressure of a spring, against a hammer bar (4) which is connected in articulated fashion to the other lever arm (16, 51) and is held by the trigger bar (5, 98) when the underside (23) abuts against or on the latch surface (26) or latch (72).
7. Lock system according to one of the preceding claims, characterised in that in addition, a safety arrangement is present, wherein the safety arrangement has a safety rod (41, 85), wherein the safety rod possesses means (48, 50; 95, 96) which are designed to interact with counterpart means (21; 77, 78) of the lever arm (8) or of the guide lever arm (52) such that the means (48, 50; 21; 95, 96; 77, 78) can pivot the toggle lever arrangement of the hammer arrangement out of the released position via the dead point into the safety position to activate the safety, and can pivot it out of the safety position via the dead point into the released position to deactivate the safety.
8. Lock system according to one of the preceding claims, characterised in that in the safety position, after being pivoted via the dead point, the pin (21) abuts against the grove base of a recess (45) in the safety rod (85), which blocks the path of the pin and thus of the hammer arrangement (2) in the released position.
9. Lock system according to one of the preceding claims, characterised in that a safety transmission lever (42) is arranged on the safety rod (41) in order to transmit the movement of a safety slider (43) located on the underside of the weapon to the safety rod (41) at the top of the weapon, wherein the safety transmission lever (42) is arranged at a free end (45a) of the safety rod (41) and on the underside of the weapon is supported in articulated fashion on the safety slider (43), wherein the safety transmission lever (42) is routed around the bolt and/or a cartridge chamber and/or other components or around the bolt travel path and is supported in articulated fashion on the safety slider (43).
10. Lock system according to one of the preceding claims, characterised in that the toggle lever arrangement is embodied by means of the hammer lever arm (51) and the guide lever arm (52), wherein the hammer lever arm (51) is an elongated component which is connected at one end (53) to the hammer bar and at its end (53) the hammer lever arm (51) can be pivoted around a pivot (54), wherein the pivot (54) possesses two hammer cheeks (55) which are arranged at one end of the hammer bar (4) and border the end (53) between themselves and passes through the end (53) with the result that the hammer lever arm (51) can rotate around the pivot (54).
11. Lock system according to one of the preceding claims, characterised in that an angled hammer surface (57) is present at a diametrically opposite end (56) of the hammer lever arm (51), wherein a guiding rotation shaft (58) is arranged spaced apart from the end (56) or from the hammer surface (57) toward the end (53), which guiding rotation shaft passes through the hammer lever arm (51) with the result that the free end (56) of the hammer lever arm, which protrudes beyond the shaft (58) and has the hammer surface, forms the hammer.
12. Lock system according to one of the preceding claims, characterised in that the hammer lever arm (51) with the guiding rotation shaft (58) is arranged capable of being rotated on the guide lever arm (52), wherein the guide lever arm (52) is a plate-like element with two side surfaces (60, 61), a top (62) and a bottom (63), as well as a front side (64), and a rear end region (65), wherein a receiving slot (66) for receiving the hammer lever arm (51) extends from the rear end region (65) to the front side (64) over a partial length of the guide lever arm (52).
13. Lock system according to one of the preceding claims, characterised in that the hammer lever arm (51) and the guide lever arm (52) form the toggle lever arrangement, wherein the guide lever arm (52) can be pivoted around laterally protruding shaft stubs (69, 70) and the hammer lever arm (51) can be pivoted upward and downward around the pivot (54) and the two are connected to each other via the guiding rotation shaft (58), wherein the toggle lever arrangement formed from the hammer lever arm (51) and the guide lever arm (52) is acted on with spring force via the hammer bar (4) and a mainspring arranged around it, wherein the guide lever arm (52) is firmly arranged at the chassis of a firearm by the shaft stubs (69, 70) if the hammer lever arm (51) and the hammer bar (4) are mobile to a limited degree in a direction of fire opposite the direction of fire by a pivoting of the toggle lever arrangement.
14. Lock system according to one of the preceding claims, characterised in that, in the guide lever arm (52) a recess is arranged from the underside (63) extending from the front side (64), wherein the recess is designed such that it extends into the guide lever arm (52), wherein the recess (75) has a recess roof (76) at the top (62), wherein the recess roof (76) has a front region (77) and a rear region (78), wherein the front region (77) and the rear region (78) are designed such that the recess roof (76) has a front recess roof region (77) and a rear recess roof region (78), which are designed inclined relative to each other at an angle, and in particular at an angle of 25° to 50°.
15. Lock system according to one of the preceding claims, characterised in that a safety rod (85) is provided for pivoting the guide lever arm (52) and for activating and deactivating the safety, wherein, at one end, the safety rod (85) has a control bead (95), wherein the control bead (95) is designed such that it interacts with the recess (75) and with the recess roof (76) in corresponding fashion.

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