WO2015193320A1

WO2015193320A1 - Firearm

Info

Publication number: WO2015193320A1
Application number: PCT/EP2015/063484
Authority: WO
Inventors: Heinz-Eckhard Engel
Original assignee: Heinz-Eckhard Engel
Priority date: 2014-06-20
Filing date: 2015-06-16
Publication date: 2015-12-23
Also published as: DE102014108670B3

Abstract

A firearm (10) has a stock (12), a barrel (30) and a breech casing (40), wherein the barrel (30) together with the breech casing (40) is assigned to a first subassembly (LB) and the stock (12) is assigned to a second subassembly (SB), and with two groups of engaging elements (E1, E2), which are formed between the first subassembly (LB) and the second subassembly (SB), wherein at least one first engaging element (44, 54) is assigned to the first subassembly (LB) and at least one second engaging element (24, 64) is assigned to the second subassembly (SB), wherein the first subassembly (LB) and the second subassembly (SB) can be connected to one another without any tools and in a releasable manner by means of the engaging elements (44, 24; 54, 64), wherein the first group of engaging elements (E1) has a receptacle (24) and a projection (44), wherein the projection (44) is in contact, at least partly, with the receptacle (24) in the assembled position of the firearm (10), and wherein the second group of engaging elements (E2) has a receiving element (54) and a locking element (64), wherein the locking element (64) can be actuated by means of an actuating element (74) and is in non-positive engagement with the receiving element (54) in the assembled position of the firearm (10). In order to obtain a connection between the barrel subassembly (LB) and the stock subassembly (SB) that is free from stress and can be reproduced at any time, in order in particular to ensure a point of impact of the barrel that is always precise and reproducible, the invention provides that the projection (44) of the first group of engaging elements (E1) is in the form of a segment of a sphere and that the associated receptacle (24) of the first group of engaging elements (E1) has an abutting area (26) that is at least partly complementary to the projection (44), wherein the projection (44) in the form of a segment of a sphere lies at least partly and without play against the complementary abutting area (26) of the receptacle (24) in the assembled position of the firearm (10).

Description

firearm

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

Firearms, in particular repeating rifles for hunting purposes, usually have a barrel, a shaft consisting of buttstock and stock and a system box defined therein, on or to which the barrel is attached, wherein in the system box, a closure system, a trigger assembly and - depending according to the type of weapon and if necessary - a magazine are housed. In order to be able to transport such a firearm, which has a certain length by design, easier, solutions have been developed to disassemble the weapon transportable, especially in at least two modules. Such weapons are also known as "take-down." In EP 1 335 174 B1, for example, the barrel is releasably fixed to the buttstock via the forend, wherein a locking device is provided between the buttstock and the forend a spring-loaded piston is formed, which is mounted on a forearm

Piston rod is actuated. On the piston circumference individual locking members are placed, the Shen by the longitudinal movement of the piston radially outward in the locked position can be brought.

For this purpose, a sleeve is used in the front stock, the circumferentially distributed openings for

Has locking members.

In a rifle known from EP 2 568 249 A1, the barrel and the forearm form a preassembled subassembly which can be detachably connected to the buttstock via coupling means. The coupling means comprise an apertured retaining plate forming part of the closure housing and a clutch disc forming part of a tether, the aperture on the retaining plate having a plurality of radially recessed ones

Recesses and radially projecting retaining webs, while the

Outside contour of the clutch disc has a plurality of radially projecting coupling webs. The latter are slidable through the recesses on the retaining plate and rotatable by means of a rotational movement behind the retaining webs, so that the barrel assembly and the

Rear shaft are joined together without play by a plug-and-turn movement.

A major disadvantage of such take-down weapons is usually that they are relatively expensive due to their elaborate designs, but also cumbersome to handle, even if no special tool is needed more to dismantle the gun and reassemble can. The high design complexity is usually due to the fact that the individual mechanical interfaces repeatable joining of running and

To ensure shaft assembly, especially when the run of

System box can be separated. For this one uses in some cases even adjustable solutions.

EP 1 574 806 B1 discloses a rifle, in particular a hunting rifle, comprising a barrel, a shank and a functional unit arranged between the barrel and the shank, which has a barrel holder, a closure, a trigger, etc., the weapon being inserted into one Running and the functional unit enclosing the first part and a shank comprising the second part is formed without tools separable. Between the functional unit and the shaft, a front, close-to-run and a rear pair of engagement elements are provided. In order to reduce the requirements for the adaptation and tuning of the engagement elements between the barrel assembly and the shaft assembly, it is provided that the front pair of engagement elements comprises a movably arranged latch, one of the second Engagement element of the front pair fixed locking position, and which is hinged to a spring-loaded toggle which is actuated by means of a clamping handle. The rear pair of engagement elements is formed by a web and an open towards this web groove, wherein the web projects from the first part and the groove is formed in the second part and elastically expandable. Width and depth of the groove are also adjustable by a set screw.

Due to the elastic tension of the engagement element inaccuracies between the two pairs are compensated and the engagement elements of the front pair are always clamped with the same force and in the same position against each other. The disadvantage, however, is that this solution continues to use expensive means to connect the modules together. Moreover, there is a risk of a double fit, because both front and rear angular alignment takes place. Furthermore, special recesses must be formed in the shaft both for the complex mounted toggle lever and for the groove formed by two elastically expandable jaws, which compared to conventional, non-dismantling weapons requires a special construction.

The aim of the invention is to overcome these and other disadvantages of the prior art and to develop a firearm, the main assemblies can be dismantled and reassembled quickly and without any tools, with an always precise and reproducible Treffpunktlage the run should be guaranteed. The firearm should also be constructed inexpensively and easy to use with simple means.

Main features of the invention are specified in the characterizing part of claim 1. Embodiments are the subject of claims 2 to 14.

In a firearm having a shank, a barrel, and a system box, the barrel associated with the system box of a first assembly and the shank of a second assembly, and with two sets of engagement members formed between the first assembly and the second assembly wherein at least one first engagement element of the first assembly and at least one second engagement element of the second assembly is assigned, wherein the first assembly and the second assembly by means of the engagement elements toolless and releasably connected to each other, wherein the first group of engagement elements a receptacle and a Projection, wherein the projection in the mounted position of the firearm at least partially with the recording is in contact, and wherein the second group of engagement elements comprises a receiving element and a locking element, wherein the locking element is actuated by means of an actuating element and in the mounted position of the firearm with the receiving element

frictionally engaged, the invention provides that the projection of the first group of engagement elements is spherical segment-shaped and that the associated receptacle of the first group of engagement elements at least partially to the projection

Complementary stop surface, wherein the spherical segment-shaped projection in the mounted position of the firearm at least partially and without play on the

complementary abutment surface of the receptacle is present.

With this simple as well as robust determination of the first assembly on the second assembly, any mechanical elastic components are banned from the joints, because the first assembly - namely the barrel assembly - lies with their

spherical segment-shaped projection always flat and self-centering on the complementary receptacle of the second module - the shaft assembly -, wherein between the projection and the associated stop surface of the recording always a play and wobble-free

Connection arises. Adjustments or adjustments are not necessary.

Another important advantage of the invention is that the bullet-shaped projection of the barrel assembly within the stem assembly provides three degrees of freedom, i. the first module can align itself freely and without jamming within the second module during insertion. As soon as the locking element of the second group of engagement elements is frictionally engaged with its associated receiving element, the first assembly is aligned and fixed in the second assembly. This results in no double fit and also a twisting or warping of the system box is effectively avoided. The dismantling and mounting of the firearm according to the invention thus has no influence on the repeat accuracy of the point of impact of the weapon, because the barrel is always exactly aligned in the mounted position and firmly connected to the shaft assembly. In this case, the system box - which can also be designed as a system sleeve - without

Insertion of elastic, in particular spring-elastic elements used in the shaft and aligned over the locking element and then fixed. Due to the self-centering and self-aligning system of the spherical segment-shaped projection in the associated receptacle of the shaft assembly are also no plastic or

Aluminum bedding for the system box in the shaft longer required. Even the influence of the shaft wood expansion and shrinkage is completely compensated by the inventive definition of the barrel assembly in the shaft assembly, because the spherical rear of the system box always finds with its projection in the stable recording of the shaft a stable counter bearing, the non-positively in the

Receiving element engaging locking element is acted upon. Additional bedding or screwing is not necessary.

The firearm according to the invention also opens up the possibility at any time

To replace shaft assembly, for example, by a high-quality wooden shaft is replaced by a sturdy plastic shaft. Even a tool-free caliber change is quickly and conveniently possible by the barrel assembly is replaced by another.

The projection preferably forms a first engagement element of the first group of

Engagement elements and is on a side facing away from the barrel, the rear end of the

System box formed. The projection is for example a spherical cap or a

Ball half-shell. It can be solid and integrally formed on the system box or you can use a corresponding hollow body, which is mounted or fixed on the system box. The receptacle for the projection preferably forms a second engagement element of the first

Group of engagement elements and is formed in or on the shaft of the second assembly. The shank has a buttstock and a forearm, wherein in the fore-end a recess for receiving the system box is formed. In this recess, the system box facing end wall is formed, which preferably the receptacle and at least partially complementary to the projection stop surface for the

Projection forms. The abutment surface can be incorporated directly into the front wall of the front stock facing the system box or the protrusion formed thereon, the abutment surface of the receptacle preferably having a spherical, conical, disk-shaped, annular or pyramidal shape. The stop surface of the receptacle can also be formed by a separate stop plate, which is provided with a central bore and which is mounted on the end wall facing the system box. In this case, the stop surface is formed by the edge region of the central bore, which is at least partially spherical, conical, disc-shaped, ring-shaped or pyramid-shaped. Both the projection and the receptacle can thereby be implemented cost-effectively with simple mechanical means, so that the take-down solution according to the invention can compete in terms of costs with a standard repeating weapon which can not be dismantled quickly and without tools for transport.

It is also conceivable an inverse embodiment of the engagement elements of the first group, for example, by the inclusion of a first engagement element of the first group of

Forms engagement elements and facing away from the barrel, the rear end of the

System box is formed, while the projection forms a second engagement element of the first group of engagement elements and is formed on the system box facing end wall of the recess in the fore-end.

A development of the invention provides that the locking element of the second group of engagement elements can be brought into two functional positions by means of the actuating element, wherein the locking element in a first functional position and in the mounted position of the firearm with the receiving element of the second group of

Engagement elements is engaged, and wherein the locking element in a second

Function position with the receiving element is disengaged. It is important here that the receiving element and the locking element are designed such that the first assembly is aligned relative to the second assembly after insertion into the second assembly and after reaching the first functional position of the locking element.

This ensures that the firearm is always optimally adjusted in its mounted position and reproducible at any time, which is necessary especially for precision bushes. The spherical rear of the system box has over the prior art at least two degrees of freedom and thus allows the free alignment of the first group of engagement elements. The first group of engagement elements thus act as a joint that can not transmit moments, i. the spherical tail and the associated intake prevent the transmission of any bending stresses. Consequently, the

Running assembly when inserting the spherical segment-shaped projection into the receptacle in

Swivel the shaft both horizontally and vertically. In addition, the barrel assembly - with respect to the barrel axis - rotate, so that the barrel assembly can always be used freely and unclamped in the shaft assembly. Once the barrel assembly in the

Shaft assembly is inserted and you the locking element of the second group of

Engaging engagement elements with the associated receiving element engages, takes place horizontal, vertical and azimuthal alignment of the barrel assembly with respect to the

Shaft assembly, without tensions between the groups of engagement elements or even within the system box or a system sleeve may occur. The terms "horizontal" and "vertical" always refer to the firearm when it is horizontally aligned and upright with its axial direction and barrel axis.

In order to ensure an always reproducible and fixed angular position of the two assemblies relative to each other, the invention further provides that the receiving element and the locking element are designed such that after insertion of the first assembly in the second assembly and after reaching the first functional position of the locking element,

^■ the locking element in the axial direction of the firearm and against the firing direction exerts a longitudinal force on the receiving element and thus on the system box, and

^■ the locking element perpendicular to the axial direction of the firearm and across the

Weft direction exerts a transverse force on the receiving element and thus on the system box.

As a result, the first assembly is always optimally and securely fixed in the second assembly, wherein the lateral force - relative to the horizontal - preferably acts vertically downwards. Moreover, it is provided that the receiving element is formed in one of the rear end side of the system box opposite the front end of the system box, wherein the receiving element has a respect to the axial direction of the firearm obliquely oriented and perpendicular to the axial direction of the firearm horizontally extending pressure surface, wherein the Bar element in the first functional position and in the mounted position of the firearm frictionally engaged with the pressure surface.

The alignment of the barrel assembly relative to the shaft assembly can for example be done directly on the locking element and the receiving element by both are geometrically matched to one another that the barrel assembly relative to the shaft assembly horizontally and vertically in a defined angular position as soon as the locking element has reached the first functional position and the weapon is mounted.

However, the orientation of the barrel assembly relative to the stem assembly may also be accomplished by providing an alternative between the barrel assembly and the stem assembly

Adjustment arrangement is formed. Preferably one uses one in the lower area of the System box trained centering element, for example in the form of a prism, and a at the bottom of the shaft, in particular the forearm, formed counterpart, eg a

corresponding bearing surface. In this embodiment, the locking element and the receiving element itself must provide no angular alignment of the barrel assembly. You just need to create a horizontal and vertical force component.

With the alignment of the first assembly relative to the second assembly over the second group of engagement members, the invention avoids any duplication and the barrel assembly receives a statically determined angular position following assembly of the firearm within the sheep assembly due to the formation of the first group of

Engagement elements is reproducible at any time. A static over-determination is

locked out.

Structurally, it is advantageous if the locking element in the axial direction of the firearm

is arranged longitudinally displaceable in the recess of the fore-end. This also has the advantage that the engagement elements of the second group are completely integrated in the shaft, in particular in the forend, which has a favorable effect on the appearance of the firearm. Alternatively, it is also possible to arrange the locking element rotatably in the shaft, in particular in the fore-end, wherein the axis of rotation of the locking element is perpendicular to the axial direction of the firearm and extends either horizontally or vertically.

The actuating element is preferably a control cylinder which is rotatably mounted in the shaft and which is in operative connection with the locking element. The locking element may also be integral with the control cylinder.

In order to simplify the handling of the firearm for the user, the control cylinder is provided with an effective in both directions of rotation rotation stop. As a result, the functional positions of the locking element are always good and reliable recognizable. Aesthetic advantages arise when the control cylinder carries or forms a strap eyelet outside the forearm. This not only wins an additional function. Due to its width, it also serves as a convenient handle for the shooter, even if he should wear gloves. Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

Fig. 1 is a side view of a firearm according to the invention in the mounted position, Fig. 2 is an oblique view of the in a first assembly (barrel assembly) and a second

Assembly (shaft assembly) disassembled firearm of Fig. 1,

Fig. 3 is an oblique view of the disassembled into the barrel assembly and the shaft assembly

Firearm of Fig. 1 from a different perspective,

4a is a simplified schematic representation of the firearm of Fig. 1 with the

Locking element in its first functional position,

4b is a simplified schematic representation of the firearm of Fig. 1 with the

Locking element in its second functional position,

Fig. 5 is a side view of the firearm of the invention of Fig. 1 during the

Assembly or during disassembly,

Fig. 6 is a side view of the firearm of the invention of Fig. 1 with the

Locking element in its second functional position,

Fig. 7a another embodiment of the firearm according to the invention in one

simplified schematic part illustration with the locking element in its first

Functional position,

7b shows the firearm of FIG. 7a in a simplified schematic partial representation with the locking element in its second functional position, FIG.

8 is an enlarged view of the locking element and a pushing element,

9a shows another embodiment of the firearm according to the invention in one

simplified schematic part representation with the locking element in its second

Functional position,

9b shows the firearm of FIG. 9a in a simplified schematic partial representation with the locking element in its first functional position, FIG.

10a shows another embodiment of the firearm according to the invention in one

simplified schematic part representation with the locking element in its second

Functional position,

10b shows the firearm of FIG. 10a in a simplified schematic partial representation with the locking element in its first functional position, FIG. 1 1 a shows a still further embodiment of a locking element with a push element in a simplified schematic partial representation with the locking element in its second functional position,

Fig. 1 1 b the locking element of Fig. 1 1 a in a simplified schematic partial representation of the locking element in its first functional position, and

Fig. 12 shows various embodiments of the front end of the forend.

The firearm generally designated 10 in FIG. 1 is designed as a repeating rifle which can be dismantled without tools into two assemblies LB, SB for simplified transport and for convenient cleaning and care. It has a shaft 12 which has a back shaft 13 at the rear and merges into a forearm 14 on the front side. Between the rifle piston formed as a butt 13 and the forend 14 a pistol grip 15 is formed, which allows the comfortable operation of a trigger 36. The latter is for the purpose of firing a shot (not shown) tensioning and release mechanism with a (also not shown) in connection with the cock, which operates a firing pin.

Arranged above the shaft 12 is a gun barrel 30 extending in the axial direction A of the weapon 10, which carries a closure sleeve 33 at its rear end 31 and is fixedly mounted thereon on a system box 40 (not visible in FIG. 1). The system box can - depending on the design of the weapon 10 - be designed as a system sleeve.

The running axis L of the barrel 30 runs in the mounted state of the weapon 10, if therefore the first barrel assembly LB inserted in the shaft assembly SB and fixed therein - parallel to the axial direction A. On the system box 40 or the system sleeve is also a (not shown) closure system Formed or repeating system, which is actuated, for example via a (also not shown) chamber stem. In the system box 40 is also the clamping and release mechanism with the tap and the firing pin, the trigger 36 is preferably inserted from below into the system box 40. Depending on the equipment of the Repetierbüchse 10 can (not shown) magazine in the

System box 40 housed. The latter is for this purpose with a (not shown)

Magazine shaft provided, which - viewed in the weft direction S - may be in front of or above the trigger 36.

The two assemblies LB and SB, in which the bolt action rifle 10 can be disassembled as a so-called take-down weapon, are shown in more detail in FIGS. 2 and 3. The first assembly LB - the barrel assembly - includes the barrel 30 and the system box 40 with all attachments and internals (not shown in detail), including a barrel 30 and closure sleeve 33 rearwardly extending housing for receiving and guiding the closure system. A riflescope (not shown) may be mounted on the barrel, on the system box and / or on the housing. For this purpose, a suitable scope mount is provided in the area of sleeve head and sleeve bridge.

The second assembly SB - the shaft assembly - includes the shaft 12 with butt shaft 13, pistol grip 15 and forend 14, which are preferably integrally formed. In the front stock 14, a recess 16 is formed for receiving the system box 40 of the first assembly LB, which extends approximately from the pistol grip 15 into the front region of the forearm 14. A breakthrough 17 in the bottom 18 of the recess 16 and the forearm 14 serves to accommodate the trigger 36 and - depending on the design of the weapon - a magazine that can be removed from below from the system box 40 mostly.

Between the assemblies LB and SB, two groups of engagement elements E1, E2 with engagement elements or engagement element pairs 44, 24 and 54, 64 are formed. These serve to connect the first module LB and the second module SB tool-free and detachable. Each group of engagement elements E1, E2 has at least one first engagement element 44, 54 associated with the first assembly LB, while at least one second engagement element 24, 64 is associated with the second assembly SB. If the engagement elements 44, 24, 54, 64 engage in mounting the firearm 10, the barrel assembly LB is fixed without play and fixed in the shaft assembly SB. Solving the group of engagement elements E2, the barrel assembly LB can be separated from the shaft assembly SB, so that the weapon 10 can be transported easier and cleaned if necessary.

The first group of engagement elements E1 preferably has a receptacle 24 and a projection 44, wherein the projection 44 in the mounted position of the firearm 10 at least partially in contact with the receptacle 24, while the second group of

Engagement elements E2 has a receiving element 54 and a locking element 64, wherein the locking element 64 is actuated by means of an actuating element 74 and in the mounted position of the firearm 10 with the receiving element 54 frictionally engaged, so that the engagement elements 24, 44 of the first group E1 and fixed be pressed against each other without play. The projection 44 is preferably a first engagement element of the first group of

Engagement elements E1 and thus assigned to the barrel assembly LB. It is formed on a side facing away from the barrel 30, rear end face 42 of the system box 40 as a convex spherical segment, i. the ball segment 44 extends in the axial direction A and thus projects from the end face 42 of the system box to the rear. It can - depending on the execution of the

System box 40 may be formed as a convex ball or a concave hollow sphere.

The receptacle 24 is a second engagement element of the first group of engagement elements E1 and is at a the system box 40 facing rear end wall 22 of

Recess 16 formed. The receptacle 24 has an at least partially to the projection or ball segment 44 complementary stop surface 26, the like

is formed axially symmetrical, that the ball segment 44 in the mounted position of

Firearm 10 at least partially and without play centered on the stop surface 26 of the receptacle 24 is present. For this purpose, the stop surface 26 - as Fig. 4a shows in more detail - preferably formed as a concave counter surface to the spherical cap of the ball segment 44, for example, as a concave spherical segment, wherein the radius of this concave spherical segment 26th

associated ball body is preferably smaller than the radius of the ball segment 44 associated ball body. Suitably, the size of the recess 24 in the end wall 22 of the recess 16 is selected such that the spherical cap of the ball segment 44 with an annular contact surface always concentric with the formed by the recess 24

Stop surface 26 abuts. Preferably, in this case, the center of the ball segment 44 and the center of the stop surface 26 in the mounted position of the firearm 10 in

Axial direction A of the firearm 10 in alignment on a line, wherein the line is substantially parallel to the axis L of the axis.

It is also possible to form the abutment surface 24 as a pyramid-shaped or conical depression, the center of which, when the weapon 10 is mounted, also lies in alignment with the center of the ball segment 44 on the system box 40 in the axial direction A. It is also important here that the spherical segment-shaped projection 44 always abuts in sections and without play on the complementary abutment surface 26 of the receptacle 24.

An alternative possibility is to perform the stop surface 24 - as shown in Fig. 4b, as a separate flat stop plate 27, which is inserted in the rear end of the recess 16 of the shaft 12 in front of the end wall 22 and centrally has a central bore 28, the edge accordingly the contour of the projection 44, the stop surface 26 forms. The stop plate 27 may also be, for example, a disc-like component, with corresponding central bore 28 and shaft-adapted Au ßenkontur. In these

Embodiments, the radius of the central hole 28 is preferably smaller than the radius of the cutting plane of the ball segment 44, so that the spherical cap of the ball segment 44 with an annular contact surface is always concentric with the abutment surface 26 formed by the stop plate 27.

In the front area of the system box 40 this is on its underside 41 with a

Centering provided 48 which is preferably triangular or prism-shaped along the axial direction A in cross section. The centering element 48 may also be trapezoidal or cylindrical in cross section.

On the bottom 18 of the shaft 12 a complementary to the centering element 48 support surface 19 is formed in the front region of the recess 48, which aligns the centering element 48 of the system box 40 and thus the barrel 30 with mounted weapon centric and parallel to the axial direction A. In the weft direction in front of the bearing surface 19 is in the bottom 18 of the shaft 12, a first bore 20 and in the end region of the forearm 14 a second

Bore 21 introduced. Both holes 20, 21 are in the mounted state of the weapon 10 perpendicular to the axial direction A and thus to the running axis L. The first bore 20 is a

Blind hole with an internal thread. It serves to receive a cap screw 66. The second bore 21 is a through hole. It serves to receive and pivot bearing of a control cylinder 75, the function of which is described in more detail below as an actuating element for the locking element 64. The second group of engagement elements E2 comprises the receiving element 54 and the locking element 64, wherein the receiving element 54 as the first engagement element of

Running assembly LB is assigned, while the locking element 64 together with the

Actuator 75 is assigned as a second engagement element of the group E2 of the shaft assembly SB.

The receiving element 54 for the locking element 64 is formed in one of the rear end face 42 of the system box 40 opposite the front end face 47 of the system box 40, namely as an axial recess, on its underside with a to

Axial direction A and the running axis L inclined pressure surface 56 is provided. The locking element 64 is formed as a flat plate, which is likewise formed obliquely at its front edge 65 facing the system box 40 corresponding to the pressure surface 56 of the receiving element 54, wherein the angle of the pressure surface 56 of the receiving element 54 and the angle of the end edge 65 of the locking element 64 equal are. The locking element 64 also has a longitudinal slot 67 in the middle. It rests flat on the bottom 18 of the recess 16 in the forend 14, the head screw 66 inserted into the first bore 20 passing through the longitudinal slot 67. In this way, the cap screw 66 and the longitudinal slot 67 form a linear guide for the locking element 64, which can move over the bottom 18 of the recess 16 in the axial direction A in and against the weft direction S longitudinally displaceable.

The control cylinder 74 is the actuating element for the locking element 64. It is rotatably inserted into the through hole 21 in the forend 14 and connected via a thrust element 76 with the locking element 64. The thrust element 76 is preferably a rod which is longitudinally displaceable over the bottom 18 of the recess 16 in the forend 14 and end connected to the locking element 64 or is integral therewith. The axis of rotation D of the control cylinder 75 is in the mounted position of the firearm 10 perpendicular and thus vertical to the axis L. In this way, the control cylinder 75 can be brought by a simple rotational movement about the axis of rotation D in two functional positions, so that the locking element 64 - the push rod 76 as a coupling element - can be brought into two functional positions F1, F2.

In a first functional position F1, the locking element 64 of the shaft assembly SB - as shown in Fig. 7a - with mounted weapon 10 frictionally engaged with the receiving element 54 of the barrel assembly LB, wherein the oblique end edge 65 of the locking element 64 on the inclined pressure surface 56 of the receiving element 54 is pressed. In this case, the system box 40 is pressed by a first force component, which acts as a longitudinal force against the weft direction S, with its ball segment 44 firmly against the complementary abutment surface 26 of the receptacle 24 and thereby automatically centered or aligned. Simultaneously, a second force component transversely to the weft direction S or transverse to the axis of rotation, so that the system box 40 is pressed by a transverse force with its bottom centering element 48 vertically against the support surface 19 at the bottom 18 of the recess 16. As a result, the running assembly LB and the shaft assembly SB are aligned both horizontally and vertically at an angle to each other and the system box 40 is always statically determined with weapon mounted and thus fixed repeatable in the shaft assembly SB, without the system box 40 or the shaft 12 can twist , To be a double-match too Avoid the end of the blade-like trained locking element 64 under the

Head screw 66 slightly rotatable, i. the transversely extending in the horizontal direction locking element 64 may be that of the elements 19, 48 predetermined

Adjust angular position.

If no centering element 48 is used under the system box 40 but, for example, a simple crowned support, the angular alignment of the barrel assembly can also take place via the engagement element 54 and the locking element 64. The latter is precisely aligned and mounted for this purpose, so that the system box is aligned on reaching the first functional position of the locking element 64 via the receiving element 54 designed as an inclined pressure surface.

In a second functional position F2, the locking element 64 is disengaged from the receiving element 54. The system box 40 can be released together with the barrel 30 from the recess 16 in the shaft 12 and the weapon can be disassembled into the two assemblies LB and SB.

So that the locking element 64 executes the necessary for the locking and unlocking of the modules LB, SB adjusting movement in its longitudinal guide, the control cylinder 75 is provided on its circular cylindrical circumference with a control surface 77. On this control surface 77, the push rod 76 is supported. This lies with its the locking element 64 opposite end face 78 on the control surface 77 which is formed flattened on one side of the control cylinder 75. On the preferably annular end face 78 of the

Push rod 76 sets a narrower diameter round rod 79, the

Control cylinder 75 passes through perpendicular to the axis of rotation D. For this purpose, the control cylinder 75 is provided with a corresponding fan-shaped recess 80, due to their

Angle limitation of e.g. 90 ° forms a rotation stop for the control cylinder 75, i.

the latter can be rotated within the bore 21 by 90 ° from the first functional position to the second functional position, so that the locking element 64 of the first

Function position F1 moves to the second functional position F2 and vice versa.

To operate the control cylinder 75 quickly and easily, this is with a

Rotary handle 95 provided, which is formed for example as a belt eyelet.

In another embodiment of the invention (see Fig. 7a, 7b), the rotary handle 95 is formed as a lever which is articulated to the control cylinder 75 and the end a Slit 96 may have for receiving a belt. With the lever 95 is the

Reduced force to rotate the control cylinder 75 in the bore 21 of the forend 14. In order to make the pressure of the locking element 64 on the pressure surface 56 of the receiving element 54 regardless of manufacturing or wear-related dimensional tolerances, a compression spring package can be arranged between the locking element 64 and the control cylinder 75. As FIG. 8 shows, the compression spring package 86 consists, for example, of disc-shaped springs 87, which are arranged one behind the other in the push rod 76. The latter is formed separately from the locking element 64 and placed as a tube longitudinally displaceable on the round rod 79. As soon as the control cylinder 75 its locking position and the

Bar element 64 has reached its first functional position F1, presses the control surface 77 against the end face 78 of the push rod 76 and presses it against the

Compression spring package 86, which in turn loads the locking element 64 in the direction of receiving element 54. Thus, on the one hand, the locking element 64 when mounted firearm 10 in

Axial direction A permanently loaded with a defined force. On the other hand, a safeguard against unintentional opening of the weapon.

The invention is not limited to one of the above-described embodiments, but can be modified in many ways. Thus, for example-inversely to the type described above-the receptacle 24 can form a first engagement element of the first group of engagement elements E1 and can be formed on a rear end face 42 of the system box 40 facing away from the barrel 30, while the projection 44 forms a second engagement element of the first group of FIG Engagement elements E1 forms and is formed on a system box 40 facing end wall 22 of the recess 16.

In the embodiment of Figs. 9a and 9b, the locking element 64 is formed as a horizontally mounted transverse shaft or as a horizontally mounted transverse cylinder which is inserted into the forend 14 and via an (not shown) actuating element of the second

Function position (Fig. 9a) in the first functional position F2 (Fig. 9b) can be brought and vice versa. In the first functional position, the transverse cylinder 64 sets with his

Outer lateral surface 68 tangentially line-touching the inclined pressure surface 56 of the first engagement member 54, wherein the system box 40 may be formed from the bottom pressure spring. In the second functional position F2, there is a flattening 69 in the outer circumferential surface 68 the receiving element 54 free, so that the barrel assembly LB can be removed from the shaft assembly SB.

Here too, the second group of engagement elements E2 generates a defined pressure on the system box and thus on the first group of engagement elements E1 when the weapon is mounted, so that the travel assembly LB inserted into the shaft assembly SB without any

Distortion is brought into a statically determined and reproducible at any angle position. In a further embodiment of the invention - shown in Figs. 10a and 10b - the locking element 64 is vertically mounted and provided at its upper, the barrel 30 end facing with a truncated cone 168, with its peripheral edge 169 in the first

Functional position (Fig. 10b) tangentially line contact rests on the inclined pressure surface 56 of the first engaging member 54 and thereby the locking element 64 both in the axial direction A of the firearm 10 and against the firing direction S with a longitudinal force, as well as perpendicular to the axial direction A of the firearm 10 and transversely to the firing direction S loaded with a downward transverse force. The system box 40 is thereby pressed with its ball-segment-shaped projection 44 without play against the complementary abutment surface 26 of the receptacle 24. At the same time, the system box 40 is above the bottom

Centering element 48 and the support surface 19 at the bottom 18 of the forend 14 adjusted.

The peripheral edge 169 of the truncated cone 168 is not formed continuously, but flattened in an angular range, so that the engagement elements 54, 64 in the second

Functional position F2 of the locking element 64 detached from each other and the barrel assembly LB can be removed from the shaft assembly SB.

In the embodiment of Fig. 1 1 a and 1 1 b is the locking element 64 which - as in the

Embodiment of Fig. 8 - designed as a tubular push rod thrust element 76 is attached. Whose longitudinal bore is axially penetrated by the round rod 79, on the end of the actuator 74 is placed. The latter is designed as a horizontally mounted control cylinder 75, which - also tubular - rotatable and due to the

Compression spring pack 86 is axially displaceably guided on the round rod 79. When turning the belt eyelet 95 as a rotary handle in a clockwise direction - from Fig. 1 1 a top of FIG. 1 b 1 below - two radially seated on the control cylinder 75 transverse pins 70 rotated, causing them to walk along a ramp sleeve 71, the front side with two diametrically across from lying cams 72 is provided, and snap on reaching the first functional position F1 of the locking element 64 (Fig. 1 1 b) in a stable end position in which the strap loop 95 is aligned horizontally. The applied in this state axial preload force can be seen in the compressed spring assembly 86 in Fig. 1 1 b. For safe transmission of the axial reaction force to the front forearm end rotatably mounted therein ramp sleeve 71 is discontinued with a circumferential shoulder.

In Fig. 12 are in the region of the front end 23 of the fore 14 different

Alternatives for the ramp sleeve 71 shown.

It can be seen first in Fig. 12 that the second bore 21 in the forearm 14 for the rotatable mounting of the control cylinder 75 is not vertical as in the embodiments of FIGS. 1 to 7, but - as in Fig. 1 1 a and 1 1 b provided, is aligned horizontally. As a result, the belt eyelet 95 fastened to the control cylinder 75 does not lie below the front stock 14, but in front of its front end 23.

In FIG. 12, the ramp sleeve 71 has been replaced by a ramp plate 171, which is inserted into the front stock 14 at its end in the region of the front end 23. This has the advantage that the necessary for their installation in the wood shank cutting operations are easy outside of the Schaftau possible:

^■ An approximately parallel axis parallel bore 21 in the forearm 14, with the

the same diameter center hole 121 of the ramp plate 171 is aligned. Both

Through holes 21, 121 are penetrated by the tubular push rod 76 and by the axially displaceable and horizontally rotatably mounted control cylinder 74. ^■ A (not visible) attached to the running axis L from above in the forearm 14 substantially (not visible) stop surface on which the left in Fig. 12 individually shown

Ramp plate 171 with an end face 172 in the weft direction S is present.

^■ In the same milling gear two weft direction parallel are (also not labeled) formed in the front groove flanks shaft which of the ramp plate 171 verdrehsichern spanner-like manner, the vertical side surfaces of the 173rd This clearly indicates the assembly of the ramp plate used in the forearm 14 of Fig. 12 (far left in the picture).

The ramp plate 171 has opposite to the end face 172 a rear surface, in which two point-symmetrically arranged ramp trays 174 are formed. These serve - like the Cams 72 of the ramp sleeve 71 - as control surfaces for the two radial pins of the push rod 76 and the control cylinder 74 acting transverse pins 70. So that these transverse pins 70 are radially secured, both ramp bins 174 can on its outer periphery - as on the right ramp plate 171 in FIG 12 - be edged. The transverse pins 70 are preferably formed as a continuous pin which protrudes symmetrically on both sides of the control cylinder 74.

This embodiment results in an equally suitable for one-piece wood as for one-piece plastic shafts, production-friendly and economical design of the firearm.

In another embodiment (not illustrated here), the locking element 64 of the second group of engaging elements E2 is a component of the rod-like pushing element 76. Instead of the oblique end edge 65 on the end blade-like plate 64, the locking element 64 is now pencil-like with a truncated cone at its in the direction of contact pointing end. For this purpose, the corresponding - and inclined in the cone angle - pressure surface 56 mounted in the front end 47 of the system box 40

Be countersink or (blind hole) bore. Their essentially parallel running axis is arranged above the likewise substantially parallel running axis of thrust element 76 and round rod 79 so that said (pencil) cone at the lower cone or hole edge in the end face 47 can produce the frictional connection according to the invention.

The receiving element 54 and the locking element 64 thus formed such that the barrel assembly LB are aligned after insertion into the Schaftbaugrupe SB and after reaching the first functional position F1 of the locking element 64 relative to the second assembly SB, because receiving element 54 and locking element 64 generate in the first Function position F1 against the weft direction S a longitudinal force, the

spherical segment-shaped projection 44 without play against the complementary abutment surface 26 presses. At the same time arises perpendicular to the axial direction A of the firearm 10, a vertically downward transverse force which presses the system box 40 in the forend.

It can be seen that a firearm 10 a shaft 12, a barrel 30 and a

System box 40, wherein the barrel 30 is associated with the system box 40 of a first assembly LB and the shaft 12 of a second assembly SB, and with two groups of engagement elements E1, E2 formed between the first assembly LB and the second assembly SB are, wherein in each case at least a first engagement element 44, 54 of the first assembly LB and at least one second engagement member 24, 64 of the second assembly SB is assigned, wherein the first assembly LB and the second

Assembly SB by means of engagement elements 44, 24; 54, 64 are tool-less and releasably connectable to each other, wherein the first group of engagement elements E1 has a receptacle 24 and a projection 44, the projection 44 in the mounted position of the firearm 10 at least partially in contact with the receptacle 24, and wherein the second Group of engagement elements E2 has a receiving element 54 and a locking element 64, wherein the locking element 64 is actuated by means of an actuating element 74 and in the mounted position of the firearm 10 with the receiving element 54 is frictionally engaged. In order to obtain a tension-free and reproducible at any time connection between the barrel assembly LB and the shaft assembly SB, in particular to ensure an always precise and reproducible Treffpunktlage the barrel, the invention provides that the projection 44 of the first group of engagement elements E1 is spherical segment-shaped and that the associated receptacle 24 of the first group of engagement elements E1 has an at least partially complementary to the projection 44 stop surface 26, wherein the spherical segment-shaped projection 44 abuts in the mounted position of the firearm 10 at least partially and without play on the complementary abutment surface 26 of the receptacle 24. The locking element 64 of the second group of engaging elements E2 can be brought into two functional positions F1, F2 by means of the actuating element 74, wherein the locking element 64 in a first functional position F1 and in the mounted position of

Firearm 10 frictionally with the receiving element 54 of the second group of

Engagement elements E2 is engaged, and wherein the locking element 64 is in a second functional position F2 with the receiving element 54 is disengaged. Moreover, the receiving element 54 and the locking element 64 are formed such that the first assembly LB after insertion into the second assembly SB and after reaching the first

Function position F1 of the locking element 64 is aligned relative to the second module SB.

All of the claims, the description and the drawings resulting features and advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in a variety of combinations. Reference numeral list

A axial direction 41 underside

D rotation axis 42 rear end side

5 E1 first group engagement elements 44 first engagement element

E2 second group engagement elements 47 front end face

F1 first functional position 40 48 centering element

F2 second functional position 54 first engagement element

L barrel axis 56 pressure surface

10 LB assembly / barrel assembly 64 second engagement member

SB module / shaft assembly 65 front edge

S Weft direction 45 66 Head screw

10 firearm / repeating rifle 67 longitudinal slot

12 shaft 68 Außenmantelfäche

15 13 butt shaft 69 flattening

14 forend 168 truncated cone

15 pistol grip 50 169 peripheral edge

16 recess 70 cross pin

17 Breakthrough 71 Ramp sleeve

20 18 floor 171 ramp plate

19 contact surface 172 end face

20 first bore 55 173 side face

21 second bore 174 ramp compartment

121 Center hole 72 Cam

25 22 end wall 74 actuator

23 front end 75 control cylinder

24 second engagement element 60 76 thrust element

26 stop surface 77 control surface

27 stop plate 78 end surface

30 28 Center hole 79 Round rod

30 barrel 80 recess

31 End 65 86 Compression spring package

33 Closing sleeve 95 Turning handle / strap eyelet

36 trigger 96 slot

35 40 system box

Claims

claims

Firearm (10),

a) with a shaft (12), a barrel (30) and a system box (40),

b) wherein the barrel (30) together with the system box (40) of a first assembly (LB) and the shaft (12) of a second assembly (SB) is assigned, and c) with two groups of engagement elements (E1, E2), the one between the first

Assembly (LB) and the second assembly (SB) are formed, wherein in each case at least one first engagement element (44, 54) of the first assembly (LB) and at least one second engagement element (24, 64) of the second assembly (SB) is assigned,

d) wherein the first assembly (LB) and the second assembly (SB) by means of

Engaging elements (44, 24, 54, 64) can be connected to one another without tools and detachably,

e) wherein the first group of engagement elements (E1) has a receptacle (24) and a projection (44), wherein the projection (44) in the mounted position of the firearm (10) at least partially in contact with the receptacle (24) and

f) wherein the second group of engagement elements (E2) comprises a receiving element (54) and a locking element (64), wherein the locking element (64) by means of a

Actuator (74) is actuated and in the mounted position of the firearm (10) with the receiving element (54) frictionally engaged,

characterized,

g) that the projection (44) of the first group of engagement elements (E1)

is spherical segmented and

h) that the associated receptacle (24) of the first group of engagement elements (E1) at least partially complementary to the projection (44)

Has abutment surface (26),

i) wherein the spherical segment-shaped projection (44) in the mounted position of

Firearm (10) at least partially and without play against the complementary abutment surface (26) of the receptacle (24). Firearm according to claim 1, characterized in that the projection (44) on one of the barrel (30) facing away, rear end face (42) of the system box (40) is formed and that the receptacle (24) in or on the shank (12) of second

Assembly (SB) is formed.

Firearm according to claim 1 or 2, characterized in that the

Stop surface (26) of the receptacle (24) preferably spherical, conical,

disc-shaped, ring-shaped or pyramid-shaped.

Firearm according to one of claims 1 to 3, characterized in that the abutment surface (26) of a stop plate (27) is formed, which is provided with a central bore (28).

Firearm according to one of claims 1 to 4, characterized in that the locking element (64) of the second group of engagement elements (E2) by means of

Actuating element (74) in two functional positions (F1, F2) can be brought, wherein the locking element (64) in a first functional position (F1) and in the mounted position of the firearm (10) non-positively with the receiving element (54) of the second group of engagement elements ( E2) is engaged, and wherein the locking element (64) in a second functional position (F2) with the receiving element (54) is out of engagement.

Firearm according to claim 5, characterized in that the receiving element (54) and the locking element (64) are designed such that the first assembly (LB) after insertion into the second assembly (SB) and after reaching the first functional position (F1) of the locking element (64) is aligned relative to the second assembly (SB).

Firearm according to claim 5 or 6, characterized in that the

Receiving element (54) and the locking element (64) are formed such that after inserting the first assembly (LB) in the second assembly (SB) and after reaching the first functional position (F1) of the locking element (64),

a) the locking element (64) in the axial direction (A) of the firearm (10) and against the

Weft direction (S) a longitudinal force on the receiving element (54) and thus on the

System box (40), and b) the locking element (64) perpendicular to the axial direction (A) of the firearm (10) and transverse to the firing direction (S) exerts a transverse force on the receiving element (54) and thus on the system box (40).

Firearm according to one of claims 1 to 7, characterized in that the receiving element (54) in one of the rear end face (42) of the system box (40) opposite the front end face (47) of the system box (40) is formed.

9. firearm according to claim 8, characterized in that the receiving element (54) with respect to the axial direction (A) of the firearm (10) obliquely oriented and perpendicular to the axial direction (A) of the firearm (10) horizontally extending pressure surface (56 ), wherein the locking element (64) in the first functional position (F1) and in the mounted position of the firearm (10) is frictionally engaged with the pressure surface (56).

10. Firearm according to one of claims 1 to 9, characterized in that the locking element (64) in the axial direction (A) of the firearm (10) is arranged longitudinally displaceable in the recess (16) of the shaft (12). 1 1. Firearm according to one of claims 1 to 9, characterized in that the locking element (64) perpendicular to the axial direction (A) of the firearm (10) is rotatably arranged in the shaft (12).

12. Firearm according to one of claims 1 to 1 1, characterized in that the actuating element (74) is a control cylinder (75) which is rotatably mounted in the shaft (12) and which is in operative connection with the locking element (64).

13. Firearm according to claim 12, characterized in that the control cylinder (75) is provided with a rotation stop.

14. Firearm according to claim 13, characterized in that the control cylinder (75) outside of the forearm (14) carries or forms a strap loop (95).