EP3591329A1 - Breech block catch with locking device of a self-loading firearm and weapon handle with same and weapon housing - Google Patents

Abstract

The invention relates to a breech catch device (36, 36 ') of a self-loading firearm (1, 1') comprising: a breech catch lever (39, 39 ') adjustable between a release position and catch / hold position, and a blocking device adjustable between a rest position and a blocking position ( 42, 42 ') for optionally fixing the locking catch lever (39, 39') in its release position, characterized in that the locking device (42, 42 ') is in its rest position out of engagement with the locking catch lever (39, 39') and in its The locked position is in engagement with the locking catch lever (39, 39 ') and deactivated. The invention further relates to a weapon grip (5, 5 ') of a self-loading firearm (1, 1') and a weapon housing (7, 7 ') of a self-loading firearm (1, 1'), each with a breech catch device (36, 36 ') according to one of claims 1 to 11 are provided.

Description

The invention relates to a breech catch device with a blocking device for a self-loading firearm and to a weapon handle and weapon housing each equipped with such a breech catch device with a blocking device.

In these documents, positional designations such as "top", "bottom", "front", "back" etc. always refer to a weapon in a normal firing position, in which the axis of the soul is horizontal and the shot is fired away from the shooter.

State of the art

Breech catchers are known in different designs and have the task of catching and holding a breech or releasing it for firing a shot.

With many rifles, light machine guns, submachine guns and pistols, it is now standard that the breech is held in the open position after the last cartridge has been fired, usually with the aid of a breech catch. For this purpose, after the last shot has been fired, the cartridge feeder of the magazine usually presses on an arm of the locking device protruding into the magazine shaft and pivots or shifts it into the movement path of the locking device, ie into its so-called catch and hold position. The one after the shot was fired initially the returning closure then hits the closure catcher when it is advanced again and the two block each other.

After using a filled magazine again, the shooter can release the breech by manually actuating the breech catch device or a breech catch lever. H. the locking catch lever returns to its so-called release position. The breech then inserts a cartridge into the chamber as it advances and the weapon is ready to fire again.

This automatic catching and holding of the leading breech when the magazine is empty has two advantages, among other things: the shooter recognizes immediately when the magazine is empty and, after inserting a full magazine, can release a cartridge by releasing the breech without having to load the weapon.

From the DE 10 2012 019 422 B3 the applicant of the same name is known, for example, a breech catch device which is designed as a one-piece breech catch lever and has operating handles protruding on the left and right sides of the weapon for operation on both sides.

From the DE 30 35 796 C2 a self-loading pistol with a magazine holder and a locking catch device is known. The catch device is connected to the magazine holder via a spring pawl mechanism, the magazine holder and the closure device being operatively connected in such a way that the closure can be released from its catch position when the magazine holder is actuated. The locking device can be moved longitudinally.

From the DE 25 23 716 a catch device is known which is coupled to a release device having a release lever to release the ignition mechanism. The locking catch device can also be operated at the same time via this release lever.

Furthermore, from the DE 1 890 933 the applicant of the same name an automatic firearm with a breech catcher known as a multi-armed lever is trained. A pivoted control piece places the lower end of a front arm of the catch lever in its release position. After the last cartridge has been dispensed, a cam provided on the underside of the feeder acts on the control piece, so that it releases the catch lever and its rear arm projects into the movement path of the closure.

The GB 15 783 discloses a locking catch device with a catch piece pivotably mounted on an axis, the catch piece comprises two side cheeks, each with a catch projection. Deactivation of the catch as such is not intended. A multifunctional safety catch catch release lever is used to disengage the catch catch piece when the feeder of the empty magazine with its driving lug does not act on the catch piece and pivots up into the movement path of the catch, which when the magazine is full, with everyone in it cartridge is the case.

The WO 2005/047804 A2 discloses a breech catch and release device of a self-loading firearm which can be loaded into the breech catch position in the usual way via the feeder of the magazine after delivery of a last cartridge. The breech catch device comprises a lever end which extends downward into the region of the trigger guard and which a shooter can manually press downward in order to bring the breech catch device into its release position.

This snap catch and release device has the same snap catch blocking system as in the DE 196 55 169 C2 described by the applicant.

If the closure is blocked by a catch device in its activated state or catch position after the last cartridge has been fired and thus kept open in its rear position, this can be disadvantageous in some applications. As a result of the closure being kept open, an ejection window through which the fired cartridge cases are ejected outwards is also usually open to the environment. The ejection window is normally in the catch direction before the breech and is therefore open. With a non-activated locking device

(Lock release position), the lock is normally in its front position and thus closes the ejection window.

With an activated breech catcher, after the last cartridge has been fired, the weapon remains open until a new magazine is inserted and / or the breech catcher is actuated manually to release the breech so that it can move forward towards the cartridge chamber.

The disadvantage of this opening of the ejection window, particularly under adverse conditions, is that contaminants such as sand or mud, for example in desert regions due to sand being blown, can get into the interior of the weapon housing and its components and, moreover, lead to malfunctions of the firearm.

In earlier times, a safety catch device was therefore completely dispensed with, in order to make the weapon more universally usable and to increase its functional reliability.

Finally reveals the aforementioned DE 196 55 169 C2 the applicant of the same name in this regard, a self-loading handgun with a breech catcher and a locking mechanism according to the preamble of claim 1. The locking mechanism is provided to hold the breech catcher in its rest position and is designed as a trigger leg spring. A front leg of the spring passes through the catch piece and engages behind a projection in the handle. Two recesses are provided in the catch piece for reciprocally receiving the spring leg. When the front spring leg is stored in one recess, the catch piece can be moved from the release position into its catch position. Moving the spring leg into the other recess prevents the closure catch piece from moving upward into its closure catch position and defines the closure release position therein. The front spring leg is permanently engaged with the catch piece.

Object and solution of the invention

The object of the invention is to provide an alternative deactivation of the locking catch device, in particular a structurally simple and functionally reliable locking device.

This object is solved by the subject matter of claims 1, 12 and 17, respectively.

The generic locking catch device is characterized in that the locking device is in its rest position out of engagement with the locking catch lever and is in its locking position in engagement with the locking catch lever and deactivates it.

The weapon grip of a self-loading firearm is characterized in that it is provided with a breech catch device according to one of claims 1 to 11.

The weapon housing of a self-loading firearm is characterized in that it is provided with a breech catch device according to one of claims 1 to 11.

The breech catch device can be provided for a wide variety of self-loading firearms, for example for a machine gun, a sniper rifle, an assault rifle or a self-loading pistol.

The catch device can be deactivated via the locking device according to the invention, ie the catch device is locked in its release position and cannot be moved into its catch / hold position or catch position. In particular with a shooting firearm, this ensures that the breech, be it single or continuous fire after firing a last shot from the magazine, is always in its front position, in which it places the ejection window, the left or right side of a weapon can be closed.

Weapon housing in the sense of the present invention comprises a one-piece or multi-part weapon housing, which can consist, for example, of an upper housing part and a lower housing part or grip. The locking catch device is provided there at a suitable position.

The lower housing part or handle can be designed as a handle module, a handle module with a magazine slot for receiving a magazine, a handle module with a receptacle for a trigger device, a handle module with a magazine slot and a receiver for a trigger device, a handle module with a slot for a trigger device and a shoulder rest or a grip module with a magazine shaft, a receptacle for a trigger device and a shoulder rest.

The locking device according to the invention has a simple structure and is functionally reliable and thus increases the reliability of a breech catch device and a firearm equipped with it.

The locking catch device according to the invention and the locking device can be produced inexpensively, for example, using known metal casting processes or metal powder injection molding processes, so-called MIM processes (metal injection molding), but also, for example, using conventional sintering processes.

The slide catch device according to the invention enables the slide catch lever to be blocked to deactivate the slide catch function. It is advantageously provided independently of the trigger mechanism, so that the risk of incorrect operation when the trigger mechanism is actuated is reduced.

The locking device preferably comprises a locking element which is longitudinally displaceable in the housing or handle, in particular in and against the direction of the shot. The locking element can, for example, be designed in a production-technically simple embodiment as a locking slide which is guided in a guide provided in the wall of the housing or handle.

The locking element is preferably guided flush in or on the housing or handle. For this purpose, it can in particular be provided as a flat locking slide in order to avoid inadvertent deactivation of the locking catch lever.

The locking device can comprise a locking element which is provided pivotably within the handle or housing.

The locking device preferably comprises a locking element which is guided to be longitudinally displaceable within the handle or housing, in particular in and against the weft direction.

The blocking element for deactivation is advantageously located inside the handle or housing in order to prevent inadvertent operation.

The locking element is preferably provided in its rest position and in its locking position in or on the handle or in or on the housing.

The locking element of the catch device is preferably provided such that it can be locked by means of a spring-loaded locking element.

The spring and the detent element can advantageously be designed with simple manufacturing means such that an unwanted movement of the locking element is prevented, for example by the acceleration of the weapon.

In its locking position, the locking element of the locking catch device preferably engages around at least a portion of the locking catch lever.

With this measure, the locking catch lever can be fixed with structurally simple means, for example over a surface designed to be complementary to a section of the locking catch lever.

The locking element of the catch device preferably has a non-slip surface.

This measure ensures, with structurally simple means, actuation of the locking element even under adverse circumstances or in a dirty state.

The locking element of the catch device is preferably guided on an axis within the handle or housing.

With this measure, it is also possible to retrofit a safety catch device with a blocking element retrospectively or from the outset using simple manufacturing techniques. In a simple embodiment, the locking element can, for example, be mounted on a pin which is inserted into the handle or weapon housing transversely to the firing direction.

The advantage of the internal locking element is that it is located inside the handle, so that unintentional operation is avoided.

The locking element is preferably designed or provided as a shaped spring which has at least one elastic section.

The shaped spring can be designed or provided with a corresponding elasticity in such a way that an unintentional or unintentional movement of the blocking element by a shooter, and above all by an acceleration of the weapon when the shot is fired, is prevented.

In the locking catch device, the locking catch lever preferably has a recess into which the locking element engages in its locking position.

The weapon grip piece preferably has at least one guide section in its wall for guiding the locking element.

The weapon grip piece preferably comprises in its wall facing the magazine shaft at least one recess which extends through the locking element in its locking position.

The weapon grip piece preferably has at least one recess for receiving and guiding the latching element.

figure description

Embodiments of the invention are explained in more detail below with reference to the accompanying schematic drawings.

Fig. 1

eine Selbstladefeuerwaffe mit einer erfindungsgemäßen Verschlussfangvorrichtung und Sperrvorrichtung in einer Seitenansicht von rechts;

Fig. 2

eine vergrößerte perspektivische Detaildarstellung der Verschlussfangvorrichtung mit Sperrvorrichtung aus Fig. 1 in einer Ansicht schräg von hinten;

Fig. 3

eine perspektivische Detaildarstellung der Sicherungsvorrichtung aus Fig. 2 in einer Ansicht schräg von hinten oben;

Fig. 4

eine perspektivische Detaildarstellung der Sicherungsvorrichtung aus Fig. 2 in einer Ansicht schräg von hinten unten;

Fig. 5

eine teilgeschnittene Detaildarstellung der Verschlussfangvorrichtung mit Sicherungsvorrichtungen gemäß dem Ausführungsbeispiel aus Fig. 1 bis 4 in einer Seitenansicht mit aktivierter Verschlussfangvorrichtung;

Fig. 6

die Verschlussfangvorrichtung mit Sicherungsvorrichtung aus Fig. 5 mit deaktivierter Verschlussfangvorrichtung;

Fig. 7

die Verschlussfangvorrichtung mit Sicherungsvorrichtung aus Fig. 6 mit einem weiteren Teilschnitt;

Fig. 8

eine Selbstladefeuerwaffe mit einer zweiten Ausführungsform der erfindungsgemäßen Verschlussfangvorrichtung mit Sperrvorrichtung in einer Seitenansicht von links mit Teilschnitt;

Fig. 9

die Ausführungsform der Verschlussfangvorrichtung mit Sperrvorrichtung gemäß Fig. 8 in einer teilgeschnittenen Seitenansicht mit aktivierter Verschlussfangvorrichtung;

Fig. 10

eine perspektivische Darstellung eines Sperrelements der Sicherungsvorrichtung gemäß dem Ausführungsbeispiel aus Fig. 9 in einer Seitenansicht schräg von vorne;

Fig. 11

eine perspektivische Seitenansicht des Sperrelements aus Fig. 10 in einer Ansicht schräg von vorne unten; und

Fig. 12

die Verschlussfangvorrichtung aus Fig. 9 im deaktivierten Zustand.

In it show:

Fig. 1

a self-loading firearm with a breech catch device and locking device according to the invention in a side view from the right;

Fig. 2

an enlarged perspective detailed view of the locking catch device with locking device Fig. 1 in an oblique view from behind;

Fig. 3

a detailed perspective view of the safety device Fig. 2 in a view obliquely from the rear above;

Fig. 4

a detailed perspective view of the safety device Fig. 2 in a view obliquely from behind below;

Fig. 5

a partially sectioned detailed view of the catch device with securing devices according to the embodiment 1 to 4 in a side view with activated catch device;

Fig. 6

the safety catch with safety device Fig. 5 with deactivated locking device;

Fig. 7

the safety catch with safety device Fig. 6 with another partial cut;

Fig. 8

a self-loading firearm with a second embodiment of the breech catch device according to the invention with locking device in a side view from the left with partial section;

Fig. 9

the embodiment of the locking catch device with locking device according to Fig. 8 in a partially sectioned side view with activated catch device;

Fig. 10

a perspective view of a locking element of the securing device according to the embodiment Fig. 9 in a side view obliquely from the front;

Fig. 11

a perspective side view of the locking element Fig. 10 in a view obliquely from the front below; and

Fig. 12

the locking device Fig. 9 in the deactivated state.

The structure and the mode of operation of the catch device with locking device according to the invention will first be described in accordance with the first embodiment 1 to 7 and then according to a second embodiment 8 to 12 explained.

Fig. 1 shows a self-loading firearm 1, which is designed as an assault rifle, more precisely than the applicant's HK416. The self-loading firearm 1 comprises a housing which consists of a hand guard 3, a lower grip part 5 and an upper housing part 7. At the back, in Fig. 1 a left shoulder support 9 is provided. The assembly and disassembly of these elements is carried out in a known manner.

The hand protection 3 comprises a lower Picatinny rail 11 on its underside and an upper Picatinny rail 13 on its upper side. On the front end section of the hand protection 3 a folding grain 15 is provided. The hand guard 3 surrounds a tube (not shown) and a known gas pressure charging mechanism 17 in its interior.

At its rear end section facing the shoulder rest 9, the upper housing part 7 comprises a folding rear sight 19 which is fastened to the upper Picatinny rail 13 in a known manner. Inside, a closure arrangement, not shown, is provided, which consists of a closure carrier, not shown, with a closure carrier head and which is used for feeding, removing and reloading cartridges in a known manner. In the front section of the upper housing part 7, a cartridge ejection window 21 is provided, which is arranged coaxially to the tube (not shown) and is provided in a known manner behind the cartridge chamber (not shown) and above the magazine shaft 30 in the handle 5.

The handle 5 includes a handle 23, a fire selector lever 25, which is used in a known manner for adjustment between single and continuous fire, etc. A trigger tongue 27 is also provided within a trigger guard 29. Above the trigger guard 29 there is an operating handle 31 designed as a release button for actuating a magazine holding / releasing mechanism with which a magazine (not shown) inserted into the magazine shaft 30 can be held and / or released there. A circled cutout 33 is provided above the operating handle 31, which is shown in a larger detail in FIG Fig. 2 is shown, and parts of the catch device 36 and the locking device 42 (cf. 2 to 7 ) shows.

The operation of a catch device 36 has already been explained at the beginning. The locking catch device 36 comprises a one-piece locking catch lever 39 according to that cited at the beginning DE 10 2012 019 422 B3 the applicant of the same name.

Fig. 2 shows an enlarged perspective view of the encircled section 33 from Fig. 1 , A partial section of the rear side of the magazine shaft 30 is shown in the upper left area. An actuating handle 35 for operating the locking catch device 36, more precisely the one-piece locking catch lever 39, is shown approximately in the center. The actuating handle 35 rests on a support surface 37 formed on the right side of the handle 5 and the Closure catch lever 39 is in its release position in which the closure can slide over it.

On its upper side, the lock catch lever 39 comprises a lock catch and holding surface 41 which, as in FIG DE 10 2012 019 422 B3 described by the applicant of the same name works. After the last shot from the magazine has been fired, the magazine feeder presses the catch lever 39 upwards into its catch position.

The operating handle 31 for the magazine holding / releasing mechanism is shown enlarged. This is pushed into the handle 5 against the force of a spring (not shown), as a result of which inside a nose (not shown) disengages from a recess formed in a magazine (not shown), so that the magazine falls down out of the magazine shaft 30 or can be removed.

Furthermore shows Fig. 2 Opposite to the actuating handle 35, a part of the securing mechanism or the locking device 42 with a locking element 43 which is partially cut on its operating surface 45. The locking element 43 has an operating surface 45 on its outside and is coaxial to the tube 16 laterally within a guide recess 46 on the right side of the handle 5 is used approximately at the upper end portion of the magazine shaft 30. The locking element 43 is guided in a longitudinally displaceable manner within the guide section 46.

For actuation, the operating surface 45 of the locking element 43 has a grooved structure on the outside for better graspability. This also enables operation, for example, under difficult conditions or, if necessary, with gloves.

Fig. 3 shows an enlarged detail view of the locking element 43 obliquely from behind and above Fig. 4 an enlarged detail view of the locking element 43 in a view obliquely from the rear below.

The locking element or the locking slide 43 is displaceable between a release position and a locking position, in the release position it has the function of Closure catch device 36 releases and in its locked position deactivates the function of the catch device 36.

The operating surface 45 is approximately rectangular and on the rear side, that is to say the side facing the handle 5 and inserted there, guide sections 47 are provided for guiding the locking element 43 in the handle 5. The guide sections 47 are designed in the manner of a groove, extend over the top of the locking element 43 and are interrupted on the right-hand side (cf. also here Fig. 5 ).

Furthermore, a through hole 77 is provided as an extension of the locking deactivation recess 61 which passes through the locking element 43 transversely to the firing direction. The upper recess 49 between the guide sections with its through hole 77 serves to disassemble the locking element 43 from the handle piece 5.

To remove the locking element 43, a pin (not shown) is inserted through the through-hole 77 and the locking pin 63 is pressed against the locking spiral spring 65 into the handle 5 until the ring section 68 is in the handle 5 so far that it does not have the edge section 52 placed more and the locking element 43 can be removed to the rear from its guide 46 in the handle. For this purpose, the catch device 36 must first be removed from the handle 5.

To assemble the locking element 43 in the handle 45, the locking element 43 is inserted into the guide section 46 of the handle 5, where it overflows with the beveled side of the edge section 52 the ring section 68 of the locking pin 63, which in the recess 54 in one of the locking recesses 59 or 61 locked.

At the right front rounded end 51 of the locking element 43, the guide section 47 runs all the way down. Adjacent to an edge section 52, the guide groove or guide section 47 is interrupted on the underside of the locking element 43. A rear latching recess 59 and a front latching recess 61 are provided in a recess 54. A guide recess or a further guide section 57 adjoins the recess 54 and extends in the direction of the rear end of the locking element 43. The guide section 57 does not continue to the rear end of the locking element 43, but ends a little beforehand in order to provide sufficient space for a locking surface 55 for receiving or overlapping the front end section of the actuating handle 35 of the locking catch lever 39 provide.

The mode of operation of setting the actuating handle 35 of the locking catch lever 39 is shown below with reference to FIG 5 to 7 described.

The locking element 43 extends with its extended projecting end 53 beyond the guide surfaces 47, 52, superimposes them and thus forms with its rear side a contact surface on the handle piece 5.

How out Fig. 4 can be seen, a locking pin 63 is provided on the underside of the locking element 43, the upper end (cf. 5 to 7 ) has a tapered end section 68 which is approximately complementary in its dimensions to the dimensions of the latching recesses 59 and 61 and is smaller in diameter than the ring section 70. These two mutually complementary conical surfaces limit the immersion depth of the latching pin 63 in the respective snap-in recess 59 or 61. Adjacent to the conical end section, the snap-in pin 63 comprises a slightly tapered ring section 68 which merges via a step 69 into an elongated ring section 70 with an enlarged diameter.

The ring section 70 tapers at its lower end and there forms a pin section, via which a counter bearing 67 in the form of a stop for a detent spring 65 is formed.

As below based on the 5 to 7 is explained, the rear latching recess 59 is used in the assembled state for activating or releasing the closure catch device 36 and the front latching recess 61 for deactivating the function of the closure catch device 36.

The locking element 43 is thus mounted in a longitudinally displaceable manner in the guide section 46 of the handle 5. The displaceability is schematic using the arrow in 5 to 7 indicated. In Fig. 5 the locking pin 63 is locked with its conical end section in the rear locking recess 59. The locking pin 63 is guided in a spring-loaded manner within a blind bore 73 provided perpendicular to the firing direction. The detent spring 65 is limited and biased at its lower end by a counter bearing 75 at the end of the blind bore 73.

The detent pin 63 can be spent downward against the force of the spring 65 within the blind bore 73 in the direction of the counter-bearing 75. In Fig. 5 the locking pin is located in the rear locking recess 59, in which the locking catch device 36 and in particular the actuating handle 35 of the locking catch lever 39 is released. In this state, the breech catch lever 39 can perform its function and catch the breech after the last shot has been fired.

By actuating or moving the locking element 43 to the left, i.e. in the direction of the shaft or shoulder support 9 of the self-loading firearm 1, the underside of the locking element 43, more precisely the mutually complementary conical surfaces of the locking recess 59 and the upper end of the locking pin 63 urge the locking pin 63 against the spring force of the locking spiral spring 65 downward, so that the locking element 43 can be moved further back. The conically tapering end section of the locking pin 63 slides from the rear locking recess 59 to the front locking recess 61 and dips as in FIG Fig. 6 and 7 represented in this one. In 5 to 7 the rear portion of the control surface 45 is partially cut out to illustrate this process.

When immersed in the front locking recess 61, the locking spiral spring 65 relaxes at least partially and fixes the locking pin 63 there. In this position, the locking catch device 36 is deactivated, since the rear end section of the locking element 43, with its locking surface 55, which is approximately rectangular, via the complementary counter surface 38 (cf. Fig. 6/7 ) is pushed on the actuating handle 35 of the locking catch lever 39. This measure defines the locking catch lever 39 in its release function, so that its holding or guiding surface 41 does not follow can protrude into the path of movement of the closure or closure head, not shown, and the closure cannot be caught or held.

In Fig. 7 this rear end section or the locking surface 55 is shown partially cut within the circle and shows how the locking surface 55 rests on the counter surface 38 of the actuating handle 35. Likewise, the guidance of the locking element 43 within the handle guide in the guide section 46 is shown.

To activate or release the catch device 36, the above process takes place in reverse, i.e. the shooter moves the locking element 43 on his operating surface 45 to the right, i.e. in the direction of the barrel mouth, whereby the locking pin 63 is in turn pressed downwards against the spring force of the locking spiral spring 65, is pushed beyond the conical end portion surfaces out of the front locking recess 61 until it is again can dip into the rear catch recess 59 and fixes the locking element 43 or the safety slide 43 in the release position.

8 to 12 show a second embodiment of the self-loading firearm 1, which is designed here as the assault rifle HK433 by the applicant.

The assault rifle 1 has the elements corresponding to the first embodiment, some of which differ in shape and design. A shoulder rest is not shown here, but only an interface 82 for its assembly. Furthermore, the embodiment differs according to 8 to 12 and particularly Fig. 8 thereby according to the first embodiment 1 to 7 that a through-loading device 81 with a through-loading lever 83 is shown as an operating handle, which is provided in a known manner within a guide slot 85 in the weapon housing, more precisely in the upper housing part 7 ', for loading the breech or gas pressure loading mechanism.

Reference numeral 33 'shows a section of the locking device with locking mechanism or locking device 42'. In contrast to the locking device 42 of the first embodiment, which is guided in the housing wall in the handle 5, the locking device 42 'of the second embodiment is more precise inside the housing arranged opposite to a trigger mechanism 86 at the rear end of the magazine shaft 30 'in the handle 5'.

9 to 12 show the detail 33 'in an enlarged sectional view and the locking device 42' with the locking element 93 in two perspective views.

Fig. 9 shows a longitudinal sectional view through the HK433 assault rifle slightly to the left of trigger trigger 27 '. In the handle 5 ', the trigger mechanism 86 is shown in greater detail and comprises a known valve 87, which is mounted on a valve axis 89 and against the force of a valve spring 91 in Fig. 9 is shown biased. The further actuating elements for triggering the trigger mechanism after actuation of the trigger tongue 27 'are known and are therefore not further explained.

The locking device 42 'is shown at the front end, that is to say the side of the receiving space for the trigger mechanism 86 facing the magazine shaft 30'. This essentially comprises a so-called shaped spring 93 (cf. 10 and 11 ). This has an elongated hole 95 in its interior, which is mounted on a molded spring bearing axis or securing axis 97 which passes through the handle 5 transversely to the weft direction and is longitudinally displaceable in the weft direction and counter to the weft direction. The shaped spring 93 acts on its underside with a pin-like counter-locking element 92, which extends upwards within the lower housing part 5 ′ perpendicular to the firing direction to the core axis of the self-loading firearm (not shown) 1. The counter-locking element 92 has at its upper end a wedge-shaped end section 94, which in turn is designed to engage with the shaped spring 93 (cf. also Fig. 9 and 12 ).

The shaped spring 93 is provided as a blocking element and has in its interior, on the upper side and on the opposite lower side approximately in the middle of the elongated hole 95, guide surfaces 96 which allow the shaped spring 93 to be displaced on the securing axis 97. The shaped spring 93 comprises a core section which surrounds the elongated hole 95 in approximately complementary dimensions. An extension section 99 is provided on the front side of the shaped spring 93, that is to say on the side facing the magazine in the installed state, which has an upper guide surface 101 on its upper side and a lower guide surface 103 on its lower side. The front edges are rounded, to enable easier introduction / guidance. The lower guide surface 103 corresponds to a locking surface which is provided when the extension section 99 dips with its front end into the locking catch device 36 'or the locking catch lever 39' and a recess 100 provided there complementarily to block the lock catching function and thus the lock catching device 36 'or the locking catch lever 39' (cf. Fig. 12 ) if desired.

The upper guide surface 101 merges in a wave-shaped manner in the direction of the elongated hole into an elevated transition section 107, which in turn merges into an extension 104 which extends upwards. The upper extension 104 has an approximately flat surface 102 on its upper side and an operating surface 105 on its front side, that is to say on the side facing the extension 99, which serves to grip the upper extension 104 and to operate it manually by a shooter.

To actuate the form spring 93, a contactor can intervene, for example, in the area of the trigger mechanism, the form spring in the assembled state preferably being provided in the left-hand third of the receiving space for the trigger mechanism 86, that is to say laterally spaced apart from the cock 87.

A spring section 109 is provided on the underside of the shaped spring or the blocking element 93. This includes a recessed area 111 which extends approximately over the entire length of the underside of the shaped spring below the elongated hole 95. The recessed area 111 widens at its front end 113 and its rear end 115 in a drop shape. On the underside of the shaped spring 93, a locking lug 119 is provided, which extends approximately in a wedge shape downward in approximately the front third of the underside between guide sections 117. Due to the elasticity, in particular the recessed area 111, the latching lug 119 can be loaded and pressed in from the rest position into the blocking position and vice versa in the direction of the elongated hole 95 in order to move the shaped spring (cf. Fig. 12 ).

The latching nose 119 lies with its front side facing the magazine shaft 30 'on the side shown in FIG Fig. 9 shown rear wedge-shaped end 94 of the counter-locking element 92. The counter-latching element 92 is rigid within the receiving space for the trigger mechanism 86 mounted on its front wall. The counter-locking element 92 is provided as a steel pin which is inserted into a recess in the aluminum of the trigger housing.

In the in Fig. 9 position shown, the locking catch device 36 'or the locking catch lever 39' is guided in a recess in the rear magazine shaft wall. Furthermore, the locking catch lever 39 'comprises a recess 100, the dimensions of which approximately correspond to the dimensions of the extension section 99 of the shaped spring (cf. Fig. 12 ). In Fig. 9 the form spring 93 is fixed via the counter-locking element 92. The function of the locking catch lever 39 'is released, which is illustrated by the arrow extending on both sides perpendicular to the firing direction. The breech catcher 36 'is in the activated state, in which the breech catcher 36' can catch and fix the breech (not shown) unhindered after firing a last shot.

Fig. 12 shows the locking catch device 36 'or the locking catch lever 39' in its deactivated state. In contrast to Fig. 9 the form spring 93 is now moved forward by a shooter by gripping the extension 104, in particular the operating surface 105, so that the rear end of the elongated hole 95 is in contact with the form spring bearing axis 97 via the guide surfaces 96. In this process, the locking lug 119 is pressed upward on the underside of the elastic spring section 109, that is to say deformed or displaced in the direction in the recessed area 111, so that the locking wedge 119 with its front wedge-shaped surface 121 extends over the wedge-shaped end section 94 of the counter-locking element 92 slides until its rear wedge-shaped surface 123 rests against the front wedge section of the wedge-shaped end 94 of the counter-locking element 92 (cf. lower encirclement).

In this position, the extension section 99 of the shaped spring 93 or the locking element is now in engagement with the recess 100 of the locking catch lever 39 'or locking catch device 36 (see upper left encirclement). In the deactivated state, after a last shot has been fired, the catch device 36 'can no longer be moved into the movement path of the fastener, not shown, so that, as mentioned at the beginning, the fastener in its front end position after the last one has been fired Shot remains and thereby blocks the side ejection window 21 ', so that the ingress of dirt is prevented, but at least is reduced.

The advantage of the internal form spring 93 or locking element 93 in the second embodiment is that it is located in the interior of the lower part of the handle 5 ', so that unintentional operation is avoided. The shaped spring 93 can be designed or provided with a corresponding elasticity in such a way that an unwanted or unintentional movement of the operating element or the operating surface 105 and the extension 104 by a user, and above all by gun acceleration when firing a shot, is prevented ,

In the first embodiment, the locking element 43 is advantageously provided in the outer wall of the lower grip part 5 in the weapon housing, in order to prevent inadvertent deactivation by a flush closure. In addition, the design of the spring or pressure piece serves to prevent inadvertent actuation of the blocking element 43, for example, due to the acceleration of the weapon when the shot is fired. While the invention is defined in the independent claims, further refinements and aspects of the invention result within the scope of the following claims, description and drawings.

Further embodiments of the invention will become apparent to those skilled in the art in the following claims.

LIST OF REFERENCE NUMBERS

1, 1 '

Self-loading firearm

3, 3 '

hand protection

5, 5 '

grip

7, 7 '

Housing top

9

buttstock

11, 11 '

lower Picatinny rail

13, 13 '

upper Picatinny rail

15, 15 '

folding Sight

16, 16 '

pipe

17, 17 '

Gas pressure loading mechanism

19, 19 '

folding rear sight

21

Cartridge ejection window

23, 23 '

Handle

25, 25 '

Fire selector lever

27, 27 '

Trigger blade

29, 29 '

trigger guard

30, 30 '

magazine well

31

Release button for magazine holding mechanism

33, 33 '

Closure catch device with safety mechanism

35

Actuating handle

36, 36 '

Closure safety gear

37

Contact surface for handle 35 on the housing

38

Counter surface on the actuating device

39, 39 '

Slide catch lever

41

Verschlussfang- / holding area

42, 42 '

locking device

43

blocking element

45

operating surface

46

Guide section in the handle housing

47

guide surfaces

49

Recess between guide sections

51

rounded end

52

edge portion

53

Extension of control surface / overhang

54

recess

55

Locking surface for fixing the locking catch lever

57

guide section

59

Snap-in recess for activating the catch function

61

Snap-in recess for deactivating the catch function

63

Plunger

65

Rest spiral spring

67

Stop on the locking pin for spring

68

ring section

69

Step on locking pin 63

70

Ring section with an enlarged diameter

73

Blind hole in the side wall of the lower part 5 for locking pin

75

Counter bearing at the end of the blind hole as a stop for detent spring 65

77

Through hole as an extension of the locking deactivation recess 61

81

Durchladeeinrichtung

82

interface

83

Handle of the through-loading device

85

Guide slot in the upper part of the housing for through-loading levers

86

trigger mechanism

87

tap

89

Hahn axis

91

rooster feather

92

Counter-locking element

93

Form spring (locking element)

94

Wedge end of the counter-locking element

95

Long hole

96

Guide surface in the slot

97

Shaft spring axis

99

Extension section on form spring

100

Recess in locking catch lever 39 '

101

upper guide surface at 99

102

flat surface

103

lower guide surface at 99

104

renewal

105

Operating surface of the shaped spring 93

106

tapered surface on the rear operating section 105

107

Transition section / increase from extension 99 to control surface 105

109

spring section

111

Recess for elasticity

113

drop-shaped front end portion of 111

115

drop-shaped rear end portion of 111

117

Guide section on the underside of the shaped spring 93

119

Locking nose on the bottom of the shaped spring 93

121

front bevelled edge of locking lug 119

123

rear bevelled edge of locking lug 119

Claims (17)

Breech catch device (36, 36 ') of a self-loading firearm (1, 1') comprising: a locking catch lever (39, 39 ') adjustable between a release position and catch / hold position, and a locking device (42, 42 ') adjustable between a rest position and a locking position for selectively fixing the locking catch lever (39, 39') in its release position, characterized in that the locking device (42, 42 ') is in its rest position out of engagement with the locking catch lever (39, 39') and in its locking position it is in engagement with the locking catch lever (39, 39 ') and deactivates it. Closure catch device (36, 36 ') according to claim 1, characterized in that the locking device (42, 42') comprises a locking element (43) which is longitudinally displaceable, in particular in the housing (7, 7 ') or handle (5, 5') in and against the direction of fire. Closure catch device (36, 36 ') according to claim 1 or 2, characterized in that the locking element (43, 93) is guided flush in or on the housing (7, 7') or handle (5, 5 '). Closure catch device (36, 36 ') according to claim 1, characterized in that the locking device (42, 42') comprises a locking element (43, 93) which within the handle (5, 5 ') or housing (7, 7') longitudinally displaceable, in particular in and against the weft direction. Closure catch device (36, 36 ') according to one of claims 1 to 4, characterized in that the locking element (43, 93) in its rest position and in its locking position in or on the handle (5, 5') or in or on the housing (7 , 7 ') is provided. Closure catch device (36, 36 ') according to Claim 5, characterized in that the locking element (43, 93) is provided such that it can be locked by means of a spring-loaded locking element (63). Closure catch device (36, 36 ') according to one of claims 1 to 6, characterized in that the locking element (93) in its locked position engages around at least a portion of the lock catch lever (39, 39'). Closure catch device (36, 36 ') according to one of claims 1 to 7, characterized in that the locking element (43) has a non-slip surface. Closure catch device (36, 36 ') according to claim 1 or one of claims 4 to 8, characterized in that the locking element (93) within the handle (5, 5') or housing (7, 7 ') on an axis (97) is led. Closure catch device (36, 36 ') according to one of Claims 1 to 3 or 9, characterized in that the locking element (93) is designed as a shaped spring which has at least one elastic section. Closure catch device (36, 36 ') according to one of claims 1 to 3, 9 or 10, characterized in that the closure catch lever (39, 39') has a recess (100) into which the locking element (93) engages in its locking position. Gun handle (5, 5 ') of a self-loading firearm (1, 1'), characterized in that it is provided with a breech catch device (36, 36 ') according to one of Claims 1 to 11. Weapon grip (5, 5 ') according to claim 12, characterized in that it has at least one guide section (46) in its wall for guiding the locking element (43). Gun handle (5, 5 ') according to claim 12 or 13, characterized in that the breech catch lever (39, 39') has a recess (100) into which the locking element (93) engages in its locked position. Gun handle (5, 5 ') according to claim 14, characterized in that it has in its wall facing the magazine shaft (30') at least one recess which extends through the locking element (93) in its locking position. Gun handle (5, 5 ') according to claim 14 or 15, characterized in that it has at least one recess for receiving and guiding the latching element (63). Gun housing (7, 7 ') of a self-loading firearm (1, 1'), characterized in that it is provided with a breech catch device (36, 36 ') according to one of Claims 1 to 11.

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