Weapon lock for a firearm

Abstract

Weapon lock for a firearm (1), comprising - a weapon housing (7) with bolt track (71) - a bolt body (2) mounted in a firing direction (x) in the bolt track (71) of the firearm (1) with a bolt head (21), - a connecting rod (3) pivotably mounted on the closure body (2) via a first pivot axis (31), - an unlocking unit coupled to the connecting rod (3), with which the locking body (2) can be moved out of a locking position, - wherein the unlocking unit comprises a flywheel (4) mounted on the firearm (1) about a rotational axis (41) and a drive unit (5), - wherein the connecting rod (3) is mounted on the flywheel (4) via a second pivot axis (32) provided parallel to and spaced from the axis of rotation (41) of the flywheel (4) and is aligned in the locking position in or near a dead center position between the locking body (2) and the flywheel (4), - wherein the drive unit (5) is coupled directly or indirectly to the flywheel (4) to trigger a rotational movement of the flywheel (4) and thus a pivoting movement of the connecting rod (3) from the dead center position, - wherein the flywheel mass (4) is rotatable by a predetermined angle (α) from the dead center position in a direction of rotation (D), - wherein a stop (44) is arranged on the flywheel (4) which limits the rotational movement by the predetermined angle (α) and which, when the predetermined angle (α) is reached, strikes a counter-stop (12) of a housing part of the firearm (1), characterized in that - the introduction of force from a recoil generated during firing onto the weapon housing (7) after firing is controllable by arranging the counter-stop (12) in an area in front of a lower or upper quadrant of the flywheel mass (4) facing or facing away from the breech body (2) and by arranging the drive unit (5) to trigger a predetermined direction of rotation of the flywheel mass (4), - wherein the counter-stop (12) is arranged in a region in front of a lower or upper quadrant of the flywheel mass (4) facing or facing away from the closure body (2).

Description

[0001] The present invention relates to a weapon breech for a firearm according to the preamble of claim 1 and to a firearm.

[0002] Such weapon bolts are known in various versions from the state of the art. A frequently used weapon bolt is the so-called rotating bolt. This bolt head is movably mounted in a bolt carrier. This bolt head rotates into a locking piece permanently connected to a cartridge chamber in a combined translational and rotational movement, thus locking the cartridge chamber to the rear, i.e., against the direction of fire. A disadvantage of such rotating bolts is that with frequent firing, the rotating locking piece becomes dirty over time, which can lead to malfunctions during firing.

[0003] Also known are so-called knee joint bolts, in which the rear part of a bolt carrier forms the knee of a knee joint. Locking is achieved here by the knee joint being fully extended. When the shot is fired, the bolt carrier is pushed rearward a short distance against the direction of fire and is then pivoted, for example, via a control cam attached to the bolt housing, as is the case with the Luger P08 pistol. The disadvantage of this system is that when the bolt carrier hits a rear stop point, a pulse-like transfer of recoil forces occurs. For example, the alignment of the knee joint in the Luger P08 pistol ensures that the pulse-like transfer of the moving forces of this mechanism increases the tendency of the weapon to recoil.

[0004] Other weapon bolts in which the bolt carrier is coupled to a flywheel are known from DE 10 2018 005 127 A1, DE 33 12 279 C1, DE 329 760 A or FR 815 865 A.

[0005] The object of the present invention is to provide a weapon breech for a firearm which, on the one hand, is less sensitive to contamination and, on the other hand, reduces the weapon from being kicked up.

[0006] This object is achieved by a weapon breech for a firearm having the features of claim 1 and by a firearm having the features of claim 14.

[0007] The weapon breech block according to the invention for a firearm has a breech track located in a weapon housing, a breech body mounted in a displacement direction in the breech track of the firearm with a breech head, a connecting rod pivotably mounted on the breech body via a first pivot axis and an unlocking unit coupled to the connecting rod, with which the breech body can be moved out of a locking position.

[0008] The unlocking unit has a flywheel mounted on the firearm around a rotation axis and a drive unit that drives the flywheel.

[0009] The connecting rod is mounted on the flywheel via a second pivot axis provided parallel to and spaced from the axis of rotation of the flywheel and, in the locking position, is aligned in or near a dead center position between the bolt body and the flywheel.

[0010] The drive unit is directly or indirectly coupled to the flywheel to trigger a rotational movement of the flywheel and thus a pivoting movement of the connecting rod from the dead center position or from the connecting rod positioned near the dead center position.

[0011] The flywheel mass can be rotated by a predetermined angle from the dead center position in one direction of rotation and can be rotated back to the dead center position in the opposite direction of rotation via a return element.

[0012] A stop is arranged on the flywheel mass which limits the rotational movement by the predetermined angle and which, when the predetermined angle is reached, strikes a counter-stop of a housing part of the firearm.

[0013] The introduction of force from a recoil generated during firing onto the weapon housing after the firing has taken place can be controlled by arranging the counter-stop in an area in front of a lower or upper quadrant of the flywheel facing or facing away from the bolt body, as well as by arranging the drive unit to trigger a predetermined direction of rotation of the flywheel.

[0014] The counter-stop is arranged in an area in front of a lower or upper quadrant of the flywheel mass facing or facing away from the bolt body.

[0015] With a weapon lock designed in this way, a locking mechanism such as a rotating head lock is no longer necessary.

[0016] Secondly, the recoil generated when firing is not transferred to the weapon housing in the form of an impulse, but is at least partially transferred into rotational energy of the flywheel, which leads to a noticeably reduced recoil.

[0017] The reduced recoil is particularly beneficial for accuracy during burst fire, as the weapon's jerking due to the recoil of the first shot is noticeably reduced.

[0018] Advantageous embodiments of the invention are the subject of the subclaims.

[0019] In an alternative design, the flywheel can be rotated 360°, so that turning back in the opposite direction of rotation is not necessary.

[0020] According to a preferred development, a return spring, for example in the form of a torsion leaf spring, serves as the return element.

[0021] This makes it easy to return the flywheel to its initial or dead center position, where the bolt body with the connected connecting rod is in its most forward position and thus closes the cartridge chamber in the opposite direction to the firing direction.

[0022] The second dead center position of the connecting rod, which generally occurs upon a 180° rotation, in which the bolt body with the connected connecting rod is in its rearmost position, will be disregarded below, as this position of the connecting rod, in which the bolt body connected to it is positioned away from the cartridge chamber, plays no role in the functioning of the weapon's breech due to its position as a further dead center position. Therefore, the dead center position of the connecting rod should always be understood below as the position of the connecting rod in which the bolt body connected to it is in its forwardmost position, thus closing the cartridge chamber opposite to the direction of fire and thus resting with its front end against the cartridge chamber of the firearm.

[0023] In the case of the weapon bolt version without a reset element, the predetermined angle through which the flywheel can rotate from the dead center position is 360°. The limitation of this angle of rotation is determined solely by the impact against a counter-stop.

[0024] In the variant of the weapon breech with a return element, the predetermined angle is preferably between approximately 40° and less than 360°.

[0025] According to a further preferred embodiment, the drive unit has a plunger which can be pressed laterally against the connecting rod in order to deflect the connecting rod from the dead center position, wherein the force exerted by the plunger has a directional component perpendicular to the axis of rotation and perpendicular to the direction of displacement of the closure body.

[0026] The force exerted by the tappet causes the connecting rod to deflect from the dead center position and thus causes a rotational movement of the flywheel.

[0027] In an alternative design variant, the drive unit has a plunger which can be pressed against the flywheel mass to deflect the connecting rod from the dead center position while exerting a torque.

[0028] The rotation of the flywheel simultaneously causes the connecting rod to move out of the dead center position.

[0029] According to a preferred embodiment, a gas pressure charger serves as the drive unit.

[0030] According to a preferred development, the gas-pressure loader has a gas guide tube extending from a gas outlet in a projectile barrel of the firearm, at the end of which, remote from the gas outlet, a gas pressure transmission element is provided for triggering the deflection of the connecting rod from the dead center position.

[0031] In one embodiment, the gas pressure transmission element is designed as a tappet mounted in a piston, with the gas guide tube opening into the piston.

[0032] By triggering the rotational movement of the flywheel via the piston and tappet, a greater time shift in the rotational time is achieved. This results in a correspondingly later introduction of residual force into the weapon.

[0033] Another variant involves omitting the drive unit and directing the gas pulse directly to the stop surface.

[0034] By triggering the rotational movement of the flywheel by the gas pulse taken directly from the gas intake and introduced via the gas pipe, an extremely short reaction time is achieved.

[0035] In contrast, the force required to trigger the rotation of the mechanical parts is greater and can be defined more precisely in the design variant with the plunger mounted in the piston than in the direct application of the gas pulse without the interposition of the plunger mounted in the piston.

[0036] In principle, an electric or electromotor drive unit or the like is also conceivable.

[0037] According to a preferred embodiment, the flywheel mass is designed as a body that is at least partially cylindrical, polygonal or elliptical in cross section.

[0038] According to another preferred embodiment, the bolt head of the bolt body is designed as a hollow truncated cone. This facilitates the feeding and removal of cartridges and standardizes the position of the bolt head on the cartridge chamber, which leads to a reduction in the mechanical play of the moving parts.

[0039] A firing pin for igniting a cartridge is preferably accommodated in a cavity of the bolt body in which the firing pin is accommodated so as to be movable in the direction of displacement.

[0040] The firearm according to the invention with a projectile tube, a cartridge chamber, a weapon breech for closing the cartridge chamber, a firing pin for igniting a cartridge in the cartridge chamber and a trigger unit for activating a firing pin to ignite the cartridge is characterized by a weapon breech as described above.

[0041] In an advantageous embodiment, concerning a flywheel without a return element, the counter-stop is mounted on the receiver of the firearm so that it can move between an active position that protrudes into the path of the stop and a passive position that does not protrude into the path of the stop. The engagement of the counter-stop with the stop increases the functional reliability of the weapon.

[0042] The rotation axis of the flywheel can also be mounted at a specific angle relative to the Y-axis.

[0043] Preferred embodiments are explained in more detail below with reference to the accompanying drawings. They show: Fig. 1a is a schematic sectional view of a first embodiment of a firearm with a weapon breech in a position for firing a shot, Fig. 1b one of the Fig. 1a corresponding sectional view with connecting rod moved out of the dead center position, Fig. 1c one the Fig. 1a and Fig. 1b corresponding representation in a position with the locking body moved out to the maximum, Fig. 1d one the Fig. 1a to 1c corresponding representation with the bolt body pushed back into the bolt carrier before firing the next shot, Fig. 2a - 2c Cross-sectional views of different flywheel designs. Fig. 3a and Fig. 3b the Fig. 1a and Fig. 1b corresponding representations of the firearm with alternative arrangement of the drive unit with the drive unit arranged below the bolt carrier and stop on the opposite side of the connecting rod and thus with changed direction of rotation. Fig. 4a - 4b the Fig. 1a and Fig. 1b corresponding representations of a further embodiment of a firearm according to the invention with a flywheel directly driven by the drive unit, Fig. 5a and Fig. 5b the Fig. 4a and Fig. 4b corresponding representations with arrangement of the drive unit in an area below the bolt carrier and thus with changed direction of rotation. Fig. 6a - 6b the Fig. 1a and Fig. 1b corresponding representations of a further design variant with a drive unit without piston for direct gas pressure application to the connecting rod Fig. 7a and Fig. 7b the Fig. 6a and Fig. 6b corresponding representations of a further variant of the firearm with a drive unit arranged below the bolt carrier and thus with a changed direction of rotation. Fig. 8a - 9b the Fig. 4a - 5b corresponding representations of yet another variant of a firearm with rotary release without drive unit 5 (without piston and tappet) on the flywheel 4 Fig. 10a - 10d the Fig. 1a - 1d show corresponding views of a further embodiment of a firearm according to the invention with the connecting rod slightly angled from the dead center position in the firing position and with the counter-stop movably mounted between an active position and a passive position, Fig. 11a - 11d the Fig. 10a - 10d show corresponding representations with the drive unit mounted below the bolt carrier and thus with a changed direction of rotation. Fig. 12 one of the Fig. 10a corresponding representation of a further embodiment of a firearm according to the invention with a drive unit without a piston, Fig. 13 one of the Fig. 11a corresponding representation of an alternative embodiment of a firearm according to the invention with the drive unit arranged below the bolt carrier and Fig. 14a and Fig. 14b the Fig. 12 and Fig. 13 corresponding representation of an alternative embodiment of a firearm according to the invention with alternatively designed stop and counter-stop.

[0044] In the following description of the figures, terms such as top, bottom, left, right, front, rear, etc., refer exclusively to the exemplary representation and position of the firearm, bolt body, connecting rod, flywheel, drive unit, trigger unit, and the like chosen in the respective figures. These terms are not to be understood as limiting; i.e., these references may change due to different operating positions or the mirror-symmetrical design, etc.

[0045] In Fig. 1a, a first embodiment of essential components of a firearm is designated by reference numeral 1. The firearm 1 comprises a projectile tube 8 with a projectile barrel 81 and preferably a gas vent hole 82, which will be discussed in more detail later.

[0046] The firearm 1 further comprises a cartridge chamber 9 with a projectile barrel 92 which opens into the projectile barrel 81 of the projectile tube 8, as well as a receptacle 91 for receiving a bolt head 21 of a bolt body 2 of the firearm 1.

[0047] The breech body 2 with the breech head 21 is part of a weapon breech for the firearm 1, which has a weapon housing 7 with a breech track 71 in which the breech body 2 is mounted so as to be displaceable in a displacement direction x.

[0048] The firearm 1 further comprises a firing pin 23 accommodated in the weapon breech for igniting a cartridge 10 located in the cartridge chamber 9, as well as a trigger unit 6 for activating the firing pin 23.

[0049] The breech body 2 mounted in the weapon housing 7 with breech track 71 has a connecting rod 3 pivotally mounted on the breech body 2 via a first pivot axis 31 and an unlocking unit coupled to the connecting rod 3, with which the breech body 2 can be moved out of a locking position.

[0050] The unlocking unit has a flywheel 4 mounted on the firearm 1 about a rotation axis 41 and a drive unit 5.

[0051] The connecting rod 3 is mounted on the flywheel 4 via a second pivot axis 32 provided parallel to and spaced from the rotation axis 41 of the flywheel 4 and, in the locking position, is aligned in or near a dead center position between the locking body 2 and the flywheel 4.

[0052] The drive unit 5 is coupled directly or indirectly to the flywheel 4 to trigger a rotational movement of the flywheel 4 and thus a pivoting movement of the connecting rod 3 from the dead center position.

[0053] As further exemplified in Fig. As shown in Figure 1a, the breech body 2 has a cavity 22 in which the firing pin 23 is accommodated so as to be movable in the displacement direction x. In all embodiments shown here, the firing pin 23 is spring-loaded via a spring element, here in the form of a compression spring 24, against a spring stop 25 fixedly mounted in the breech body 2, in order to ensure that the striking piece 62 can reliably act on the striking surface of the firing pin 23.

[0054] To trigger the firing action, a striking impulse from the firing pin 62 moves the firing pin 23 against the spring force of the spring element 24 in the cavity 22 of the bolt body 2, so that the tip of the firing pin 23 strikes the ignition element of the cartridge through a bore in the bolt head 21, thus firing the shot. The movement of the bolt system re-cocks the firing pin 62. The spring force of the spring element 24 moves the firing pin 23 back, without the counterforce of the firing pin 62.

[0055] The trigger unit 6 preferably consists, in a manner known per se, of a trigger bracket 61 which can be actuated with a finger and which actuates the striking piece 62 via one or more levers 64.

[0056] A fuse 63 ensures that in a safety condition, for example in Fig. 1d the release lever 61 cannot be actuated.

[0057] On the weapon housing with bolt track 7, there is also a handle 72 below the bolt track 71, which serves to hold the trigger unit 6.

[0058] Furthermore, in an area preferably in front of the trigger unit 6, viewed in the firing direction x, a cartridge magazine 11 or a connection for such a cartridge magazine 11 is preferably provided, in which a plurality of cartridges 10 are accommodated, which can be pushed out of the cartridge magazine 11 into the receptacle 91 of the cartridge chamber 9 during a reloading process.

[0059] The ejection and loading process takes place in a manner known per se in that, when the bolt body 2 moves against the firing direction x, an extractor claw (not shown here) and a case ejector are arranged or formed on the bolt body 2, with which the powder case of the cartridge can be pulled out of the cartridge chamber 9.

[0060] During the forward movement of the bolt body 2 in the bolt track 71 in the firing direction x, a cartridge 10 is taken from the cartridge magazine 11 and inserted into the receptacle 91 of the cartridge chamber 9.

[0061] The flywheel 4, which is used purely as an example in all figures (except Fig. 2) is cylindrical in cross-section, is rotatable in a direction of rotation D by a predetermined angle α from the dead center position.

[0062] The limitation of the rotation by the predetermined angle α generally refers to the functional sequence between a first shot and the readiness for a second shot.

[0063] In the Fig. In the first embodiment shown in Figures 1a - 1d, the flywheel mass 4 is mounted via a return element 43 to rotate back to the dead center position, counter to the direction of rotation D. In the embodiment shown here, the return element 43 is preferably designed as a return spring. Other spring variants, such as tension or compression springs with corresponding connections, are also conceivable.

[0064] In the design variants shown here, a gas pressure charger known per se is used to trigger the rotational movement of the flywheel 4 or the deflection of the connecting rod 3 from the dead center position or from a position close to the dead center position.

[0065] Another design of such a drive unit 5 is also conceivable, for example electric motor or the like.

[0066] The functionality of the weapon breech is exemplified in the Fig. 1a - 1d explained.

[0067] Fig. 1a shows the state immediately before the shot is fired, in which the firing pin 23 strikes the back of the cartridge 10 to ignite the cartridge 10. In this position, the alignment of the connecting rod 3 is such that it is aligned in a dead center position between the bolt body 2 and the flywheel 4.

[0068] The second pivot axis 32 of the connecting rod 3 lies in an imaginary line between the rotation axis 41 of the flywheel 4 and the first pivot axis 31 of the connecting rod 3, which means that immediately after the cartridge 10 is fired, an impulse triggered by gas pressure on the bolt body 2 against the firing direction x does not initially lead to a displacement of the bolt body 2 within the bolt carrier 7. The first recoil triggered by this impulse due to the expulsion of the cartridge projectile from the weapon is introduced into the housing 7 of the weapon via the dead center position of the connecting rod 3.

[0069] Only when a force is exerted by the drive unit 5, here the gas-operated loader, is a plunger 53 of the drive unit 5 pressed laterally against a stop surface 33 on an upper side of the connecting rod 3 near the second pivot axis 32 to deflect the connecting rod 3 from the dead center position. The drive unit 5, designed here as a gas-operated loader, is triggered after the cartridge projectile of the cartridge 10 has passed the gas removal bore 82 in the projectile barrel 81 and the gas pressure can thus spread into a gas guide tube 51 of the drive unit, which opens into a piston 54 in which the plunger 53 is mounted.

[0070] The orientation of the plunger 53 is such that the force exerted by the plunger 53 has a directional component perpendicular to the axis of rotation 41 and perpendicular to the displacement direction x of the closure body 2.

[0071] As a result of the force exerted by the plunger 53, the connecting rod 3 is pressed vertically downwards at its end connected to the flywheel 4, which leads to a rotational movement of the flywheel 4, as is exemplified in Fig. 1b is shown.

[0072] Since the end of the connecting rod 3 connected to the flywheel 4 moves on a circular path with the rotation of the flywheel 4, the movement of the connecting rod 3 also leads to a release of the linear movement of the bolt body 2 coupled to the connecting rod 3 within the bolt carrier 7, so that a displacement of the bolt body 2 counter to the firing direction x caused by the gas pressure also promotes the rotation of the flywheel 4 and thus a hard impact of the bolt body 2 on the housing 7 of the weapon is prevented.

[0073] The residual energy of the movement is now introduced into the housing 7 of the weapon through a counter-stop 12 and a stop 44 of the flywheel mass 4 which limits the rotational movement.

[0074] The counter-stop 12 is preferably attached to a housing part of the firearm 1, for example in the area of a shoulder piece of the firearm 1 (not shown here).

[0075] The attack situation is in Fig. 1c. The positioning of the stop 44 and the counter-stop 12 is shown here such that the connecting rod 3 moves the bolt body 2 to its rearmost position on the bolt track 71.

[0076] The installation position of the stop 44 and the counter-stop 12, as well as the direction of rotation, also determines the direction of the force introduced into the weapon after the rotation of the flywheel 4. In particular, the positioning of the counter-stop 12 on the housing of the firearm 1 serves to determine the direction of the recoil dampened by the movement of the flywheel 4.

[0077] Thus, the force remaining in the housing of the weapon after the shot has been fired as a result of the force being introduced into the flywheel 4 acts when the counter stop 12 is arranged in an area in front of a bolt body 2 facing (in Fig. 1c left) lower or upper quadrant of the flywheel 4, as shown in the embodiments shown in the figures, ie viewed from the breech body 2 in front of the flywheel 4, in the firing direction and depending on the direction of rotation of the flywheel 4 and the arrangement of the counter-stop 12 in the area in front of the left lower or left upper quadrant of the flywheel 4, downwards or upwards.

[0078] Thus, the force introduced into the housing of the weapon after the shot has been fired as a result of the force being introduced into the flywheel 4 acts in the variant according to Fig. 1a to 1d downwards and in the direction of fire.

[0079] In the version according to the Fig. 3a and Fig. 3b, with the direction of rotation reversed and the arrangement of the counter-stop 12 in an area in front of a lower left quadrant of the flywheel 4, the force is introduced upwards and in the firing direction x after the shot has been fired.

[0080] In the version according to the Fig. 4a and Fig. 4b, with the variant of the Fig. 1a to 1d corresponding clockwise rotation direction and arrangement of the counter-stop 12 in an area in front of a left lower quadrant of the flywheel 4, the force is also introduced upwards and in the direction of the shot after the shot has been fired.

[0081] In principle, it is also conceivable to arrange the counter-stop 12 in an area in front of a right lower or right upper quadrant of the flywheel 4, ie behind the flywheel 4 as viewed from the locking body 2.

[0082] This arrangement of the counter-stop 12 results in the force remaining in the housing of the weapon as a result of the force being introduced into the flywheel 4 after the shot has been fired acting opposite to the direction of fire and, depending on the direction of rotation of the flywheel 4 and the arrangement of the counter-stop 12, in the area in front of the lower right or upper right quadrant of the flywheel 4, acting upwards or downwards.

[0083] A return element 43, designed here as a return spring, then ensures that the flywheel mass 4 is rotated back against the direction of rotation D into the frontmost position of the bolt body 2 in the bolt track 71, as shown in Fig. 1d. In this position, the bolt head 21 of the bolt body 2 rests again against the rear of the cartridge chamber 9.

[0084] The drive unit 5, designed as a gas pressure charger, has, in the Fig. 1a - 1d, a gas guide tube 51 extending from a gas intake 52 in the projectile barrel 8 of the firearm 1, which here opens into a piston 54 in which the plunger 53 is mounted and which is pressed against the stop surface 33 of the connecting rod 3 by the gas pressure from the piston 54 increasing inside the piston after the shot is fired.

[0085] In the Fig. 3a and Fig. 3, the drive unit 5 is not arranged vertically above, i.e. on the side of the firearm 1 opposite the trigger unit 6, but on the side of the trigger unit 6. Accordingly, the stop surface 33 of the connecting rod 3 is also arranged on the underside of the connecting rod 3.

[0086] Accordingly, the flywheel mass 4 is rotated to dampen the recoil in such a way that the connecting rod 3 is deflected upwards with its end facing the flywheel mass 4 and the direction of rotation D of the flywheel mass 4 is correspondingly changed in the opposite direction of rotation as in the Fig. 1a - 1d shown embodiment variant.

[0087] In the Fig. 4a and Fig. 4b, the rotation of the flywheel 4 is not triggered via the connecting rod 3, but via a stop surface 45 provided on the flywheel 4. The remaining structure corresponds to that shown in the Fig. 1a - 1d shown variant.

[0088] The Fig. 5a and Fig. 5b show analogous to the Fig. 3a and Fig. 3b shows a variant in which the drive unit 5 is again arranged below the projectile tube 8 and accordingly the stop surface 45 on the flywheel 4 in the Fig. 5a is positioned below the connecting rod 3 on the flywheel 4.

[0089] In the Fig. 6a and Fig. 6b shown further design variant was compared to the ones shown in the Fig. 1a - 1d, the drive unit 5 is modified in such a way that the gas-pressure charger does not have a piston 54 and tappet 53, but the gas guided in the gas tube 51 is guided directly onto the stop surface 33 of the connecting rod 3 after a shot is fired.

[0090] The Fig. 7a and Fig. 7b shows a corresponding design variant with the drive unit 5 arranged below the projectile tube 8.

[0091] The Fig. 8a and Fig. 8b or the Fig. 9a and Fig. 9b show further variants with the Fig. 6a - 7b corresponding design of the drive unit 5 and application of the gas pressure in this case directly to the flywheel 4 analogous to the Fig. 4a - 5b.

[0092] In the further in the Fig. In the embodiment shown in Figures 10a - 10d, the rotational movement of the flywheel 4 is not limited by a stationary counter-stop 12, against which the stop 44 of the flywheel 4 strikes after rotating through a predetermined angle α, but by a movably held counter-stop 12, which is mounted on the housing part of the firearm 1 between an active position protruding into a path of the stop 44 and a passive position not protruding into the path of the stop 44. Accordingly, the counter-stop 12 acts here as a kind of stop claw.

[0093] As a result, a return element 43 on the flywheel 4 is not necessarily required, since the flywheel 4 can always rotate in the same direction of rotation D.

[0094] In contrast to the Fig. 1a - 1d, the connecting rod 3 is shown here in the Fig. 10a shown starting position, which corresponds to the Fig. 1a, immediately before firing the cartridge, is not exactly in the dead center position between the bolt body 2 and the flywheel 4, but rather is already angled out of the dead center position by a small angle, which is preferably between 0° and 10°. This position is shown in the Fig. 10a, Fig. 11a, Fig. 12 and Fig. 13 is referred to as VÜ (offset over dead center).

[0095] When the counter stop 12 is arranged vertically above the connecting rod 3, the connecting rod 3 is hinged slightly downwards here.

[0096] After ignition has taken place, the drive unit 5 causes the counter-stop 12 to pivot away from the blocking position with the stop 44 of the flywheel 4, so that the connecting rod 3 is deflected further downwards in the area of the second pivot axis 32 at its end closest to the flywheel 4 when the breech block 2 moves against the firing direction x, so that the flywheel 4 is in Fig. 10a - 10d is rotated counterclockwise.

[0097] Accordingly, the Fig. 11a - 11d, in which the drive unit 5 is positioned below the projectile tube 8 and the counter-stop 12 is positioned below the connecting rod 3, the connecting rod 3 in the Fig. 11a shown starting position slightly upwards out of the dead center position.

[0098] The subsequent rotational movement of the flywheel 4 takes place accordingly in a clockwise direction.

[0099] In the embodiment shown here, the counter stop 12 is mounted on the housing of the firearm 1 in a tiltable manner and can be moved, for example, via a spring element into the Fig. 10a, Fig. 10d, Fig. 11a and Fig. 11d, in which the counter-stop is in engagement with the stop 44 of the flywheel 4, can be held.

[0100] Fig. 12 shows a variant of the firearm 1 with such a movably mounted counter-stop 12 and a drive unit 5 without piston 54 and tappet 53, analogous to the variant according to Fig. 6a and Fig. 6b. Fig. 13 shows one of the Fig. 12 similar design variant with drive unit arranged below the projectile tube 8.

[0101] The Fig. 14a and Fig. 14b show a further embodiment of the firearm 1 with such a movably mounted counter-stop 12 designed as a stop claw with a groove-shaped recess 121 into which a web 441 formed on the stop 44 projects when the stop 44 and the counter-stop 12 engage with each other.

[0102] The Fig. 2a - 2c show further exemplary cross-sectional designs of the flywheel 4. Other shapes of the flywheel are also conceivable.

[0103] The rotational axis of the flywheel can also be positioned at a specific angle to the Y-axis. This allows the direction of force transmission from stop 44 into the weapon to be determined.

[0104] Overall, the precisely defined residual force introduced into the weapon, as described above, reduces the recoil caused by the movement of the bolt body 2, thus reducing the likelihood of the weapon rising. This results, firstly, in a more stable weapon, allowing the next shot to be fired more accurately. Secondly, it guides the weapon back toward the original firing direction.

[0105] The residual force introduced into the weapon after the shot has been fired is lower and more dampened than in weapons with conventional weapon bolts due to the partial conversion of kinetic energy into rotational energy.

[0106] The weapon bolt can be used for both manually operated firearms and other types of actuation or casing variants. List of reference symbols 1 firearm 2 locking bodies 21 Bolt head 22 Cavity 23 firing pins 24 firing pin spring 25 spring stop 26 rod holder 3 connecting rod 31 first swivel axis 32 second swivel axis 33 Stop surface 4 Flywheel 41 axis of rotation 42 swing bodies 43 Reset element 44 stop 441 jetty 45 stop surface 5 Drive unit 51 Gas pipe 52 Gas acceptance 53 plungers 54 pistons 6 trip unit 61 release bracket 62 striking piece 63 Security 64 levers 7 weapon housing with bolt track 71 bolt race 72 handle 8-barrel rifle 81 bullet barrel 82 Gas extraction well 9 cartridge chambers 91 recording 92 bullet barrel 10 cartridges 11 cartridge magazines 12 Counter stop 121 recess 13 Spring element α angle D Direction of rotation x Shift direction y direction z direction VÜ offset over dead center

Claims

[1] Weapon lock for a firearm (1), comprising - a weapon housing (7) with bolt track (71) - a bolt body (2) mounted in a firing direction (x) in the bolt track (71) of the firearm (1) with a bolt head (21), - a connecting rod (3) pivotably mounted on the closure body (2) via a first pivot axis (31), - an unlocking unit coupled to the connecting rod (3), with which the locking body (2) can be moved out of a locking position, - wherein the unlocking unit comprises a flywheel (4) mounted on the firearm (1) about a rotational axis (41) and a drive unit (5), - wherein the connecting rod (3) is mounted on the flywheel (4) via a second pivot axis (32) provided parallel to and spaced from the axis of rotation (41) of the flywheel (4) and is aligned in the locking position in or near a dead center position between the locking body (2) and the flywheel (4), - wherein the drive unit (5) is coupled directly or indirectly to the flywheel (4) to trigger a rotational movement of the flywheel (4) and thus a pivoting movement of the connecting rod (3) from the dead center position, - wherein the flywheel mass (4) is rotatable by a predetermined angle (α) from the dead center position in a direction of rotation (D), - wherein a stop (44) is arranged on the flywheel (4) which limits the rotational movement by the predetermined angle (α) and which, when the predetermined angle (α) is reached, strikes a counter-stop (12) of a housing part of the firearm (1),characterized by , that - the introduction of force from a recoil generated during firing onto the weapon housing (7) after firing is controllable by arranging the counter-stop (12) in an area in front of a lower or upper quadrant of the flywheel mass (4) facing or facing away from the breech body (2) and by arranging the drive unit (5) to trigger a predetermined direction of rotation of the flywheel mass (4), - wherein the counter-stop (12) is arranged in a region in front of a lower or upper quadrant of the flywheel mass (4) facing or facing away from the closure body (2). [2] Weapon breech according to claim 1, characterized by that the flywheel mass (4) can be rotated back into the dead center position via a return element (43) against the direction of rotation (D). [3] Weapon breech according to claim 2, characterized by that the return element (43) is designed as a return spring. [4] Weapon breech according to one of the preceding claims, characterized by that the counter stop (12) is designed as a stop claw. [5] Weapon breech according to one of the preceding claims, characterized by that the predetermined angle (α) is 360°. [6] Weapon breech according to one of claims 1 to 4, characterized by that the predetermined angle (α) is between approximately 40° and less than 360°. [7] Weapon breech according to one of the preceding claims, characterized by in that the drive unit (5) has a plunger (53) which can be pressed laterally against the connecting rod (3) in order to deflect the connecting rod (3) from the dead center position, wherein the force exerted by the plunger has a directional component perpendicular to the axis of rotation (41) and perpendicular to the direction of displacement (x) of the closure body (2). [8] Weapon breech according to one of claims 1 to 6, characterized bythat the drive unit (5) has a plunger (53) which can be pressed against the flywheel mass (4) to deflect the connecting rod (3) from the dead center position while exerting a torque. [9] Weapon breech according to one of the preceding claims, characterized by that the drive unit (5) is designed as a gas pressure charger. [10] Weapon breech according to claim 9, characterized by that the gas-pressure loader has a gas guide tube (51) extending from a gas take-off (52) in a projectile barrel (8) of the firearm (1), at the end of which tube remote from the gas take-off (52) a gas pressure transmission element is provided for triggering the deflection of the connecting rod (3) from the dead center position. [11] Weapon breech according to claim 10, characterized by that the gas pressure transmission element is designed as a tappet (53) mounted in a piston (54), wherein the gas guide tube (51) opens into the piston (54). [12] Weapon breech according to one of the preceding claims, characterized by that the flywheel mass (4) is designed as a body that is at least partially cylindrical, polygonal, elliptical or similar in cross section. [13] Weapon breech according to one of the preceding claims, characterized by that the closure head (21) of the closure body (2) is designed as a hollow truncated cone. [14] Weapon breech according to one of the preceding claims, characterized by that the closure body (2) has a cavity (22) in which a firing pin (23) is accommodated so as to be movable in the direction of displacement (x). [15] Firearm with a projectile tube (8), a cartridge chamber (9), a weapon breech for closing the cartridge chamber (9), a firing pin for igniting a cartridge (10) located in the cartridge chamber and a trigger unit (6) for activating a firing pin (23) for igniting the cartridge (10), characterized bythat the weapon breech is designed according to one of the preceding claims. [16] Firearm according to claim 15, characterized by that the counter-stop (12) of the weapon breech is mounted on the housing part of the firearm (1) so as to be movable between an active position projecting into a path of the stop (44) and a passive position not projecting into the path of the stop (44).

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