EP3376151A1 - Lock for a firearm - Google Patents

Abstract

The present invention relates to a closure device for firearms, in particular for repeating rifles, comprising a cartridge chamber, an outer sleeve (1) and a chamber (3) accommodated therein, the chamber (3) having a closure head (2) in the region facing the cartridge chamber. and within the chamber (3) a control piece (4) relative to the chamber (3) and relative to the closure head (2) is mounted axially displaceable, further comprising a chamber lever (6) which is connected to the control piece (4) so in that, on a backward movement of the chamber lever (6), the closure head (2) is unlocked and locked in continuation, wherein the chamber lever (6) is pivotally mounted in the rear end region of the sleeve (1) and the chamber lever is pivotably mounted about an axis which is eccentric to the longitudinal axis of the chamber (3), wherein according to the invention the control piece (4) via an intermediate piece (17) with the chamber lever (6) ver is bounded, which projects radially outwards from the chamber, and wherein the closure head (2) about its axis (13) rotatably mounted in the chamber (3) and the closure head (2) by axial displacement of the control piece (4) is turned.

Description

The present invention relates to a closure device for firearms, in particular for repeating rifles, comprising a cartridge chamber, an outer sleeve and a chamber accommodated therein, the chamber having a closure head in the region facing the cartridge chamber and within the chamber a control piece relative to the chamber and opposite the lock head is axially displaceably mounted, further comprising a chamber lever, which is connected to the control piece, so that upon a backward movement of the chamber lever, the lock head is unlocked and locked in the course, the chamber lever is pivotally mounted in the rear end of the sleeve and the chamber lever to an axis is pivotally mounted, which extends eccentrically to the longitudinal axis of the chamber.

From the DE 196 08 872 C1 is a closure device for firearms, in particular for repeating rifles, known with a cartridge chamber, with an outer sleeve and a chamber accommodated therein, wherein the chamber in the chamber facing the cartridge chamber has a closure head and within the chamber a control piece is mounted, so that at the backward movement of the chamber lever, the lock head unlocked and locked in the course. In this known closure device, however, the closure head is not rotatably mounted. The locking is done by means of locking elements in the form of balls, which are pressed over a bevelled front end face of the control piece during its advancement to the outside of the inner wall of the closure sleeve. Although the chamber lever has a favorable rear position in this weapon, but the lock on said balls has proved in practice to be disadvantageous.

In the EP 0 784 194 A2 a straight-pull closure for a firearm is described, in which the closure head is mounted rotatably in a chamber about its own axis and fixed by a shoulder opposite the chamber in its axial movement. A control sleeve has at its front a control pin whose surface is in contact with a control groove. In this firearm, the bolt handle is by design at the front end of it closure. This front position of the chamber handle makes handling and a fast weapon function difficult.

From the DE 43 05 700 C1 is also a closure for a firearm has become known in which the straight-pull lever is located directly above the trigger and due to this position allows good handling. However, the locking takes place here via an expandable sleeve, which is not always reliable.
In all three aforementioned known solutions, the closures each have only a comparatively short stroke of the control piece, which is determined by the position of the lever axis and the contact point with the control piece. The stroke is only about 8-10 mm, which allows only a lock with expandable sleeve, balls or limited rotation in a rotation angle of, for example, up to about 20 °.

The object of the present invention is to provide a closure, in particular a straight-pull closure, for a firearm with the features of the type mentioned above, which ensures a secure locking via a rotatable closure head with a simple construction and tool-free dismantling.

The solution of the problem provides a closure for firearms of the aforementioned type with the features of claim 1.

According to the invention it is provided that the control piece is connected via an intermediate piece with the chamber lever, which protrudes from the chamber radially outwardly that the closure head is rotatably mounted about its axis in the chamber and the closure head is rotated by axial displacement of the control piece.

At the time of the DE 196 08 872 C1 known closure device for firearms, the closure head is not rotatable. Although there are in the art also Geradzugverschlüsse for firearms, in which the closure head is rotatably mounted in a chamber about its own axis, such as in the above EP 0 784 194 A2 described. However, due to various reasons, only a comparatively small angle of rotation is achieved in these known closure devices for constructional reasons.

In the solution according to the invention, however, the control piece is connected via an intermediate piece with the chamber lever. Because the axis about which the chamber lever pivots eccentrically (relative to the longitudinal axis of the chamber) is arranged and the intermediate piece, on which the chamber lever engages, can be attached to the pivot axis of the chamber lever opposite side of the weapon while still lying radially outward, is also the point of application of the chamber lever to the Intermediate piece in a comparatively large distance from the pivot axis of the chamber lever, which in turn has the consequence that during the pivotal movement of the chamber lever, a large longitudinal stroke of the intermediate piece and thus of the control piece is achieved. This comparatively large longitudinal stroke of the control piece is then converted into a rotary movement of the closure head with a correspondingly large angle of rotation, whereby a secure locking of the closure head is achieved.

According to a preferred embodiment of the invention, the intermediate piece is guided displaceably in the longitudinal direction in at least one groove or recess in the wall of the sleeve. On the one hand, this results in an additional guide for the intermediate piece in the sleeve and the intermediate piece can be arranged so far radially outward that it extends not only beyond the chamber in the radial direction, but at least partially beyond the sleeve outwards.

According to a preferred embodiment of the invention, the intermediate piece is also displaceably guided in an elongated hole of the chamber in the longitudinal direction.

According to a preferred embodiment of the invention, a hinged connection of the chamber lever is provided with the intermediate piece via an axle, the axis of which is parallel to the axis about which the chamber lever is pivotally mounted, wherein the axle in the plan view is arranged radially out of alignment of the chamber , The axle member thus has a comparatively large distance (in the transverse direction of the weapon) to the pivot axis of the chamber lever, whereby upon actuation of the chamber lever, a long pivoting path and thus a large distance results, which traverses the intermediate piece upon retraction of the chamber lever. This in turn leads to a large longitudinal stroke of the control piece and thus to a large angle of rotation of the closure head.

According to a preferred embodiment of the invention, a locking pin is arranged laterally radially outside in the chamber approximately in the rear end region, which cooperates with a spring-loaded rocker, upon retraction of the chamber lever, the rocker and the locking pin are released from the sleeve and the locking pin then into a appropriate Recess of the control piece engages, whereby the axial movement is blocked.

According to a preferred embodiment of the invention, an approximately radially outwardly projecting control pin is located in the front region on the control piece, which engages in a control groove in a section of the closure head, of which the front portion of the control piece is taken concentrically.

According to a preferred embodiment of the invention, the intermediate piece for connection to the control piece on an extension or a nose with which (r) engages radially inwardly projecting into a radial bore in the control piece.

According to a preferred embodiment of the invention, the axle bolt, which serves as a pivot axis for the chamber lever, mounted depressible in its axial direction, which is released by pressing the chamber lever and the firing pin assembly is axially removed to the rear.

According to a preferred embodiment of the invention, the axle member, via which the chamber lever is pivotally connected to the intermediate piece, engages in a transverse groove on the underside of the intermediate piece.

According to a preferred embodiment of the invention, the intermediate piece on the upper side has a groove over which it is displaceably guided on actuation of the chamber lever for carrying out a pivoting movement of the chamber lever relative to a widened rear part of the chamber.

The features mentioned in the dependent claims relate to preferred developments of the task solution according to the invention. Further advantages of the invention will become apparent from the following detailed description.

Hereinafter, the present invention will be described in more detail by way of embodiments with reference to the accompanying drawings.

• Figur 1 einen vertikalen Längsschnitt durch einen Verschluss gemäß einem Ausführungsbeispiel der vorliegenden Erfindung in der verriegelten und abgeschlagenen Stellung ;
• Figur 2 einen horizontalen Längsschnitt durch einen Verschluss gemäß einem Ausführungsbeispiel der vorliegenden Erfindung in der verriegelten und abgeschlagenen Stellung ;
• Figur 3 einen vertikalen Längsschnitt des Verschlusses in der entriegelten Stellung;
• Figur 4 einen horizontalen Längsschnitt des Verschlusses in der entriegelten Stellung;
• Figur 5 einen horizontalen Längsschnitt des Verschlusses in entriegelter Stellung ohne Hülse;
• Figur 6 a eine Seitenansicht von Verschlusskopf und Steuerstück in der verriegelten Stellung,
• Figur 6b eine entsprechende Seitenansicht in der entriegelten Stellung;
• Figur 7 a eine stirnseitige Ansicht der Verschlusskopfs von Figur 6 a in der verriegelten Stellung gemäß Figur 6 a;
• Figur 7b eine stirnseitige Ansicht des Verschlusskopfs von Figur 6b in der entriegelten Stellung;
• Figur 8 a eine Ansicht von Kammerhebel und Zwischenstück in der verriegelten Stellung;
• Figur 8b eine Ansicht von Kammerhebel und Zwischenstück in der entriegelten Stellung;
• Figur 9 a eine um 90 ° gedrehte Seitenansicht von Kammerhebel und Zwischenstück gemäß Figur 8 a;
• Figur 9b eine um 90 ° gedrehte Seitenansicht von Kammerhebel und Zwischenstück in der entriegelten Stellung von Figur 8 b;
• Figur 10 einen Querschnitt entlang der Linie A-A von Figur 8 b;
• Figur 11 a eine Ansicht des Verschlusses im hinteren Bereich mit Kammerhebel und Zwischenstück in der verriegelten Stellung, wobei man den Verschluss gemäß Figur 9 a hier von der Unterseite her sieht;
• Figur 11b eine entsprechende Ansicht von Kammerhebel und Zwischenstück wie in Figur 11 a, jedoch in der entriegelten Stellung;
• Figur 12 einen Schnitt durch die Darstellung von Figur 11b entlang der Linie A-A;
• Figur 13 eine Ansicht von Kammerhebel und Zwischenstück in einer ähnlichen Position wie in Figur 8 a;
• Figur 14 eine Schnittansicht entlang der Linie B-B von Figur 13;
• Figur 15 eine gegenüber Figur 13 um 90° gedrehte Ansicht von Kammerhebel und Zwischenstück;
• Figur 16 eine Schnittansicht entlang der Linie A-A von Figur 15.

Showing:

• FIG. 1 a vertical longitudinal section through a closure according to an embodiment of the present invention in the locked and cut off position;
• FIG. 2 a horizontal longitudinal section through a closure according to an embodiment of the present invention in the locked and cut off position;
• FIG. 3 a vertical longitudinal section of the closure in the unlocked position;
• FIG. 4 a horizontal longitudinal section of the closure in the unlocked position;
• FIG. 5 a horizontal longitudinal section of the closure in the unlocked position without sleeve;
• FIG. 6 a is a side view of the closure head and control piece in the locked position,
• FIG. 6b a corresponding side view in the unlocked position;
• FIG. 7 a is an end view of the closure head of FIG. 6 a in the locked position according to FIG. 6 a;
• FIG. 7b an end view of the closure head of FIG. 6b in the unlocked position;
• FIG. 8 a is a view of the chamber lever and intermediate piece in the locked position;
• FIG. 8b a view of the chamber lever and intermediate piece in the unlocked position;
• FIG. 9 a is a rotated by 90 ° side view of the chamber lever and spacer according to FIG. 8 a;
• FIG. 9b a 90 ° rotated side view of the chamber lever and intermediate piece in the unlocked position of FIG. 8 b;
• FIG. 10 a cross section along the line AA of FIG. 8 b;
• FIG. 11 a is a view of the closure in the rear area with the chamber lever and intermediate piece in the locked position, wherein the closure according to FIG. 9 a looks here from the bottom;
• FIG. 11b a corresponding view of the chamber lever and intermediate piece as in Figure 11 a but in the unlocked position;
• FIG. 12 a section through the representation of FIG. 11b along the line AA;
• FIG. 13 a view of the chamber lever and intermediate piece in a similar position as in FIG. 8 a;
• FIG. 14 a sectional view taken along the line BB of FIG. 13 ;
• FIG. 15 one opposite FIG. 13 90 ° rotated view of chamber lever and intermediate piece;
• FIG. 16 a sectional view taken along the line AA of FIG. 15 ,

First, on the Figures 1 and 2 Reference is made and based on this, the basic structure of the closure according to the invention is explained. Both illustrations show the closure each in the locked and cut off position. It is a straight-pull closure arranged in a substantially tubular cylindrical sleeve 1, the front closure head 2 of which is mounted rotatably but not displaceably in a likewise approximately cylindrical chamber 3, the chamber 3 in turn being accommodated coaxially in the cylindrical sleeve , As in the frontal view according to the FIGS. 7 a and 7 b can be seen, the closure head 2 radially outwardly formed as warts locking elements 7, which can be engaged and disengaged in corresponding locking elements 8 of the barrel or the sleeve 1. At its rear side, the closure head 2 has at least one control groove 11 (see also FIG FIGS. 6a, 6b ), which has a constant or a progressive gradient.

The closure head 2 is fixed by the shoulder 10 in its axial movement relative to the chamber 3. It is a control piece 4 is provided, which is mounted axially displaceably in the closure head 2 and in the sleeve 3. The control piece 4 has in its front end region a radially outwardly extending control pin 12 whose surface is in contact with the cam 11 of the closure head 2 (see also FIGS. 6 a and 6 b).

In the Figures 2 and 4 the chamber lever 6 can be seen, which is pivotally and positively mounted about a pivot pin 16 pivotally mounted at the rear end of the chamber 3 (see also FIGS. 11a, b and 12 ). This enables fast and tool-free dismantling. By pivoting the chamber lever 6 about the axle 16, the control piece 4 is moved via an intermediate piece 17 connected thereto in the axial direction. The movement of the intermediate piece 17 can be done quite well by comparing the FIGS. 8a and 8b on the one hand and also the Figures 11a and 11b detect.
The intermediate piece 17 is mounted axially displaceably in the chamber 3 and connected by the nose 18 with the control piece 4 (see Figures 2 and 4 ). At the rear end, the intermediate piece 17 is connected by the transverse groove 19 and the axle 20 with the chamber lever 6 (see FIG. 16 ).

At the rear end of the chamber 3 is on the intermediate piece 17 on the circumference opposite side of the chamber 3, a locking pin 21 with a spring-loaded rocker 22 is disposed (see FIG. 2 ). This locking pin 21 snaps into a recess 23 (see FIG. 2 ), when one moves the chamber 3 from the sleeve 1 when repeating the weapon (see FIG. 4 ).

The operation of the closure according to the invention will be explained below. When moving the shutter in the in the Figures 1 and 2 shown locked and cut off position, the chamber lever 6 is moved forward and pivoted, whereby the intermediate piece 17 and the control piece 4 are moved to a forward position. To open the shutter of the chamber lever 6 is withdrawn, whereby the intermediate piece 17 and connected to this control piece 4 are withdrawn in the in the FIGS. 3 and 4 shown position. During the backward movement of the introduced into the closure head 2 control groove 11 and the control pin 12 of the closure head 2 is rotated about its own axis 13 and thereby unlocked. Here is also on the FIGS. 6 a and 6 b, which show the control piece 4 in the front and in the pulled-out rear position. It is easy to see how the control pin 12 moves in the control groove 11. Since the closure head 2 is held in the axial direction, it rotates about its axis during retraction of the control piece. The two rotational positions of the closure head are also in the FIGS. 7 A and 7 b are shown showing the closure head 2 from the front side.

Upon further retraction of the chamber lever 6 (see FIG. 5 ), the rocker 22 and thus the locking pin 21 is released from the sleeve 1. This means that the locking pin 21 engages in the corresponding recess of the control piece 4 and its axial movement blocked. The closure head 2 can now be pulled out of the sleeve with the chamber 3 and the control piece 4 in the axial direction to the rear. There is then no rotational movement of the closure head 2 and no axial movement of the control piece 4 within the chamber 3 more.

When the chamber lever 6 and the lock head 2 are fixed in the unlocked position, the shutter can slide freely and thereby the repeating operation is performed.

When closing the closure ( FIG. 4 ), the chamber lever 6 and thus the closure head 2 is only released for rotational movement when the rocker 22 is pushed over the edge of the sleeve 1 further forward (see also FIG. 5 ).

The control piece 4 is pushed forward by the closing spring 9, which facilitates the closing operation and keeps the closing head 2 in the locked position (see FIG FIG. 2 ).

In the FIGS. 6 a and 6 b, the control piece 4 is shown without the chamber 3, in which it is mounted axially displaceable. It can be seen here quite well the cam 11 in the closure head 2 and the control pin 12, which is guided in this control groove 11. Will now from the locked position according to FIG. 6 a the control piece 4 moves over the here not pictured intermediate piece 17 to the rear, then this leads to the rotational movement of the closure head in the in FIG. 6b shown position. By comparing these two views of the comparatively large longitudinal stroke of the control piece 4 can be seen. In these two drawings you can also see the radial bore 25 of the control piece 4, in which the nose 18 (see FIG. 2 ) engages the intermediate piece, whereby the connection between the intermediate piece 17 and control piece 4 is made.

The frontal views according to the FIGS. 7 a and 7 b can detect the size of the angle of rotation in the above-described process of locking the closure head 2 and it can be seen that it is a rotation angle of about 60 °, which is considerably more than in the known from the prior art devices. Furthermore, you can see in the FIGS. 7 a and 7 b, the outline shape of the closure head 2 in its end region, which is formed with lugs, projections or the like so that in the position according to FIGS. 7 a / 6 a the lock is given while after turning into position according to FIG. 7b the closure head 2 fits positively into a correspondingly shaped inner contour in the sleeve 1 and can therefore slide back in the sleeve. In this regard, reference is also made to the respective locking elements 7, 8 of the closure head 2 and sleeve 1, which in the illustration in accordance with FIGS. 3 and 4 to be released after unlocking.

The FIGS. 8 a and 8 b each show a side view in the rear of the weapon, wherein one recognizes the connection of spacer 17 and chamber lever 6, and the slot 24 in the chamber in which the intermediate piece 17 in the first phase of the movement of the chamber lever 6 to the rear , is guided until the release of the closure head 2. In the second phase of movement, after the locking pin 21 has been released, the closure with the chamber 3 moves out of the sleeve 1 axially to the rear and the intermediate piece 17 is then locked relative to the chamber 3.

The Figures 9 a and 9 b show the respective side views of FIGS. 8 a and 8 b, where in FIG. 9 looks at the weapon from above. It can be seen here that the intermediate piece 17 on the upper side has a groove 26, via which it is guided displaceably on actuation of the chamber lever 6 for carrying out the pivoting movement relative to the rear part of the chamber. Because the intermediate piece 17 is thus guided in two mutually perpendicular regions (once on the sleeve 1 and once on the wider rear part of the chamber 3), it is trapped in its movement on the weapon. Said widened rear part of the chamber is designed so that it rests flush with the inserted into the sleeve 1 chamber 3 at the rear end of the sleeve 1 (see Figures 1 and 2 ).

The Figures 11 A and 11 b show again in the locked and in the unlocked position, the area with the chamber lever 6 and the intermediate piece 17, where you see the chamber lever 6 quasi from below. Here, on the one hand, the axle 16 can be seen, around which the chamber lever 6 pivots and you can see the pin 20, which defines the pivot point of the articulated connection between the chamber lever 6 and the intermediate piece 17. FIG. 12 shows a section through the chamber lever 6, in which one recognizes the axle 16 and the groove 26 at the top of the intermediate piece 17th

FIG. 13 shows the chamber lever 6 with the intermediate piece 17 and in the sectional view according to FIG. 14 you can see the chamber lever 6 with the axle 16 for the hinge axis. Furthermore, in FIG. 14 the nose 18 can be seen, via which the intermediate piece 17 is connected to the control piece 4. FIG. 15 shows in principle the side view of FIG. 13 , so that you can see the chamber lever 6 from below. In the sectional view according to FIG. 16 the section line runs through the axle 16 and through the pin 20 so that it can be seen here how the chamber lever 6 is pivotally connected to the intermediate piece 17 via the pin 20.

LIST OF REFERENCE NUMBERS

1

shell

2

bolt head

3

chamber

4

control piece

5

Chamber

6

chamber lever

7

locking elements

8th

locking elements

9

closing spring

10

paragraph

11

control groove

12

control bolt

13

axis

14

paragraph

15

groove

16

axle

17

connecting piece

18

nose

19

transverse groove

20

axle

21

Indexing plungers

22

seesaw

23

recess

24

Long hole

25

radial bore

26

groove

Claims (10)

Closing device for firearms, in particular for repeating rifles, comprising a cartridge chamber, an outer sleeve (1) and a chamber (3) accommodated therein, wherein the chamber (3) has a closure head (2) in the region facing the cartridge chamber and within the chamber (3) a control piece (4) relative to the chamber (3) and relative to the closure head (2) is mounted axially displaceable, further comprising a chamber lever (6) which is connected to the control piece (4), so that in a backward movement of Chamber lever (6) of the closure head (2) unlocked and locked in the course, wherein the chamber lever (6) in the rear end of the sleeve (1) is pivotally mounted and the chamber lever is pivotally mounted about an axis which eccentrically to the longitudinal axis of the chamber ( 3), characterized in that the control piece (4) via an intermediate piece (17) with the chamber lever (6) is connected, which from the chamber projecting radially outwards that the closure head (2) about its axis (13) rotatably mounted in the chamber (3) and the closure head (2) by axial displacement of the control piece (4) is rotated. Closure device for firearms according to claim 1, characterized in that the intermediate piece in at least one groove or recess in the wall of the sleeve (1) is guided displaceably in the longitudinal direction. Closure device for firearms according to claim 1 or 2, characterized in that the intermediate piece (17) in a slot (24) of the chamber (3) is guided displaceably in the longitudinal direction. Closing device according to one of claims 1 to 3, characterized in that an articulated connection of the chamber lever (6) with the intermediate piece via an axle (20) is provided, whose axis is parallel to the axis (16) to which the chamber lever (6). is pivotally mounted, wherein the shaft member (20) seen in plan view is arranged radially outside the alignment of the chamber. Closing device according to one of claims 1 to 4, characterized in that laterally radially outside in the chamber (3) approximately in the rear end portion of a locking pin (21) is arranged, which cooperates with a spring-loaded rocker (22), wherein upon retraction of the chamber lever (6) the rocker (22) and the locking pin (21) of the sleeve (1) are released and the locking pin (21) then in a corresponding recess (23) of the control piece (4) engages, whereby its axial movement is blocked. Closure device according to one of claims 1 to 5, characterized in that an approximately radially outwardly projecting control pin (12) in the front region on the control piece (4), which in a control groove (11) in a partial section of the closure head (2). engages, of which the front portion of the control piece (4) is received concentrically. Closing device according to one of claims 1 to 6, characterized in that the intermediate piece (17) for connection to the control piece (4) has an extension or a nose (18), with the (r) it projects radially inwardly into a radial bore (17). 25) in the control piece (4) engages. Locking device according to one of claims 4 to 7, characterized in that the axle pin (16) is mounted depressibly in its axial direction, being released by pressing the chamber lever (6) and the firing pin assembly can be removed axially to the rear. Closing device according to one of claims 4 to 8, characterized in that the axle element (20), via which the chamber lever (6) is pivotally connected to the intermediate piece (17), in a transverse groove (19) on the underside of the intermediate piece (17). intervenes. Closing device according to one of claims 2 to 9, characterized in that the intermediate piece (17) on the upper side a groove (26) through which it upon actuation of the chamber lever to perform a pivoting movement of the chamber lever (6) against a widened rear part of the chamber (3 ) is guided displaceably.

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