EP1756508A1

EP1756508A1 - Hand firearm and a rigid shoulder support therefor

Info

Publication number: EP1756508A1
Application number: EP05748059A
Authority: EP
Inventors: Thomas Romer; Rolf Knöpfle
Original assignee: Heckler und Koch GmbH
Current assignee: Heckler und Koch GmbH
Priority date: 2004-06-16
Filing date: 2005-06-10
Publication date: 2007-02-28
Also published as: CA2570072A1; WO2005124265A1; DE102004029205B3; KR20070037713A

Abstract

The invention relates to a hand fire arm, in particular a rapid fire weapon (2), comprising a shoulder support (3) which can be pivoted about a hinge (4) which is disposed on one side of the weapon (2). Said weapon is pivoted in such a manner that it adopts a position, wherein the weapon (2) extends towards the back, and engages in a locking element (8, 13) which is mounted on the other side of the weapon (2). According to the invention, the locking element (8, 13) is at least nondetachable in normal transverse loading, in order to produce said type of the weapon with a rigid rear shaft. The invention also relates to said type of shoulder support.

Description

Handgun and rigid shoulder rest for this

The invention relates to a handgun, in particular a rapid-fire rifle, with a shoulder support which can be pivoted about a hinge which is attached to one side of the weapon so that it assumes a position in which it forms an extension of the weapon to the rear, and thereby falls into a rest, which is attached to the other side of the weapon, according to the preamble of claim 1.

The invention also relates to such a shoulder rest itself (claim 7).

DE 12 13 303 B discloses a pivotable shoulder rest that is intended to offer a secure hold and low wear.

In the following documents, when using

Positional designations are always based on the weapon, which is oriented horizontally in normal readiness to fire and whose direction of fire points horizontally forward.

Folding shoulder rests have been known for a long time. These shoulder rests can be folded down so that they rest against the weapon from below, above or from the side. These weapons always have a hinge that runs horizontally in the German MP 38/40, for example, and a detent. With the help of this hinge, the

Shoulder rest are pivoted forward, and the position of the shoulder rest can be releasably determined by means of the latch.

In the case of the shoulder rest of the MP 38/40, the catch and the axis of rotation of the hinge are quite close together. This primarily ensures a very light and compact design, but also a rather shaky hold. This shoulder rest is not in use with one Comparable butt stock comparable, at least not after some use, because the rest wear out extremely quickly. Only the use of plastics as a material for the folding stock and for the weapon housing has inevitably to larger distances between the axis of rotation of the

Hinge and location of the rest led because there the certain

Resilience of this plastic is drastic

Reduction of the forces required, on the other hand, because of the low weight of the plastic, larger versions of the swivel mechanism and thus larger distances from the detent and swivel axis were still acceptable.

It has been found in the well-known German G36 rifle that the shoulder rest mentioned, at least if it is not pivoted too often, is as tight as a firm buttstock.

In known rifles, such as the Soviet AK 74, there are versions with and without hinged

Shoulder rest side by side. In many cases the infantryman is more appropriately equipped with a fixed shoulder rest than with a foldable shoulder rest. On the other hand, a foldable shoulder rest is necessary for tank crews, motorcycle detectors and the like, because these soldiers are often in such a confined environment that the use of a rifle with a rigid shoulder rest would be impossible or at least difficult.

The production of two different versions of

Rifles are not only expensive, they are also logistically inappropriate. In addition, it has been found that rifles with a folding stock, where there is also a version with a rigid stock, are a sign that the carrier is something special. From this derives the need of many soldiers to get a rifle with a folding stock if possible, in order to rise, at least supposedly, in the military hierarchy. This fact ensures but for the fact that, at least in the event of war, rifles come with

Folding stock often get to the wrong place of use.

The above-mentioned, well-known German G 36 rifle is only delivered with a folding stock, so that on the one hand there is only one model, but on the other hand it also takes into account the soldiers' need for representation. However, it turned out after a relatively short time that in some cases a rigid shaft would be more appropriate.

Starting from the described prior art, it is the object of the invention to find the most economical possible solution to the problem of equipping one and the same rifle model optionally with a folding stock and with a rigid butt stock. These two versions should be so similar that the version with a rigid buttstock can be viewed for a folded-out version if the identical housing version is provided for both versions.

This object is achieved on the basis of the prior art described at the outset, in that the rest is insoluble, at least with normal transverse loading (claim 1).

Here, the invention is not, as usual, from a rifle with a rigid buttstock or rigid shoulder rest, which you then try to make movable, but from a rifle with a foldable shoulder rest, which is in the position in which the housing of the Rifle extended, practically inseparable. So you can first choose the construction that experience shows is best for a retractable shaft in continuous use; then the type of determination that is most suitable is selected. The term "practically unsolvable" is to be understood so that the release can only be carried out by the weapon mechanic, but not by the soldier who is equipped with the rifle. In this way, many advantages are achieved: the greatest is the fact that nothing can be changed on the rifle or the weapon (e.g. a submachine gun), but that the rifle and shoulder rest are used in the same way as the weapon with a foldable shoulder rest , This configuration is more complex than a simple, rigid shoulder rest, but this effort is more than offset by the saving of a separate model. Only the rest is changed, that is, the movable one

Locking part that is attached to the shoulder rest. This locking part can, as far as it is made of plastic, be made by inserting an adapter into the mold of the locking part, so that this then does not require any handling.

Another advantage is that the catch can be designed so that it opens when overloaded, that is, when the rifle falls down a slope. In some accidents, the shoulder rest can give way before it breaks.

Here, for example, the spiral spring pin used on the hinge side of the hinged version is replaced by a removable retaining bolt on the fixed shoulder support. For certain weapons, this is useful for removing the fixed shoulder rest when cleaning weapons.

A configuration according to the invention particularly preferably comprises a selected folding mechanism, this being formed from elements which are far apart and which therefore keep the shoulder rest immovable despite tolerances; the choice of plastic for the elements is particularly preferred.

The detent can be designed in many ways, one having not only the intended folding buttstock but also when a finished weapon is present according to the invention should have a solid shoulder rest, can make compromises. A particularly simple version of the rest is that it is formed by an attached on the other side of the weapon, rear-facing tab, which has a recess into which a resiliently movable slide located on the shoulder rest falls, which has no has outwardly projecting, force-absorbing elements (claim 2). This slider can be the only element in which the fixed shoulder rest differs from the foldable one: while the slider of the foldable shoulder rest has an easily accessible handle with which it can be pushed back against the force of a spring, thus releasing the shoulder rest to fold down , the slide according to the invention has no outwardly projecting elements that could be used to handle the slide.

In order to shield the slide from the outside, the recess can be designed as a bag opening. This avoids the possibility of contamination, since the rest is not opened. But it is preferred that the recess is a through opening (claim 3). Not only is the pollution limited (with the foldable shoulder rest) and a check is possible by eye contact to determine whether the

Shoulder rest is fully engaged or not, but it can (in the case of the fixed shoulder rest according to the invention) a tool can be inserted from the outside into the recess, which is designed on the front complementary to the facing end of the slider, so that this means of the tool without further and in particular can be moved without being damaged.

Of course, the soldier using the weapon is forbidden, at the bore or next to the flap with one

Poking around a screwdriver or the like. In an emergency, however, for example before loading the soldiers into narrow landing craft, tools can be issued using those without special knowledge also the fixed

Shoulder rest can be folded down to make it easier to handle. Improve weapon. When the soldier has enough space again, the shoulder rest is simply unfolded, the pusher of the rest engages in the corresponding hole and the rifle is again provided with a rigid shoulder rest.

There are several ways to fold down the shoulder rest; For example, the shoulder rest on the MP 38/40 mentioned at the beginning is folded down, and there are shotguns where it is folded up. According to the invention, however, it is particularly preferred if the pivot axis of the hinge extends parallel to the associated side surface of the weapon (claim 4)

So the shoulder rest lies against the side of the weapon when it is folded forward. The particular advantage of this design is that neither the sighting device nor the magazine and handle are gripped by the shoulder rest and may be impaired in the process. Otherwise, the hinge or latch is outside the handle or sight, so that they can be made relatively large and therefore stiff without affecting the usability of the weapon. In this way, a rigid shoulder rest can be attached, which, like a conventional buttstock, sits rigidly on the weapon without wobbling.

In this case the hinge could be on the right or left of the weapon. However, it is preferred that the hinge sits on the right side of the weapon (claim 5). If, for example due to a break in the slide, the rest gives way while the weapon is being fired, the joint folds in (for right-handed shooters) and is prevented by the shooter's body from collapsing further. This makes handling safer, even in the extremely rare event that the rest fails. It has already been mentioned above that a certain, limited, resilient flexibility of the parts of the joint contributes to the fact that the shoulder rest can be attached to the rifle in a completely rigid manner, like a conventional, rigid butt stock. It is therefore preferred according to the invention that the predominant parts of the catch and hinge consist of plastic (claim 6). Although the housing of the weapon must be largely rigid, it can be ensured in the shoulder rest and / or in parts of the rest that these have the required flexibility and are therefore also better protected against breakage.

In addition, the invention relates not only to a handgun with a folding stock, but also one

Shoulder rest itself (claim 7), which can be produced separately for weapons that are manufactured or already available. It is possible to manufacture the parts of the shoulder rest according to the invention with a certain oversize and to equip existing weapons that are already worn out, since then a completely rigid fit of the shoulder rest is produced (because of the oversize). Furthermore, because of the impossibility of folding the shoulder rest according to the invention in daily use, the further wear of parts such as the tab and

Hinge parts, prevented on the rifle housing. This can thus be used without loss of usefulness.

A special, non-limiting embodiment of the invention is shown in the accompanying drawing, the only figure of which shows a joint in horizontal section for rigid attachment of a shoulder rest.

In the figure, part of a housing 2 is shown, in which a tab 7 is formed on the back on the left side and two eyes 6 of a hinge 4 are integrally formed on the right side. The tab 7 has a continuous δ

Recess 13 on. Behind the housing 2 (right side of the

Figure) and in alignment with this, a shoulder rest 4 is arranged; which has an eye 6 on the right-hand side, which is assembled with the other eyes 6 and a non-detachable, vertical, removable holding bolt 9 to form the hinge 4.

The shoulder rest has a transverse bore 10 which is open to the left (downward in the figure) and into which a spring 5 and then a slide 1 are inserted one behind the other. The slide 1 has a lock 11 which is pressed in when it is installed, then springs back again and falls into a recess 12 in the bore 10 which limits the slide stroke and ensures that the slide cannot be easily removed.

The slider 1 has a nose 8 which engages in the recess 13 of the tab 7 and, after it has snapped into place, cannot be released again since the slider 1 has no projection accessible from the outside.

The geometry of the engagement of the slide 1 in the recess 13 of the tab 7 is such that, in the event of excessive transverse force to the right (upward in the figure) by bending the parts, which are all made of plastic, the holding bolt 9 may possibly be excluded, the Slider 1 is released so that the shoulder rest 3 does not break off and in particular the tab 7 does not tear out.

If a tool complementary to the projection 8 of the slider 1 is inserted from the left into the recess 13 of the tab 7, the slider 1 can thus be pushed back and the shoulder rest 3 can be pivoted down exceptionally.

A rifle with a swivel stock would have a slider, on which a pusher extending to the left (down in the figure) is formed on the left, rear side (behind the flap) stands outwards and must be pressed by the shooter in order to

To move the slider to the right and thus to be able to tilt the shoulder rest 3 forward.

Because of the particularly good and rigid hold, the invention is particularly suitable for a rifle, in particular a sniper rifle or a rapid-fire rifle. But it is also possible to attach the shoulder rest shown on a machine gun or a submachine gun or small submachine gun.

Claims

claims

1. Handgun, in particular rapid-fire rifle (2), with a shoulder support (3) which is pivotable about a hinge (4) attached to one side of the weapon (2) so that it assumes a position in which it forms an extension of the weapon (2) to the rear, and thereby falls into a latch (8, 13) which is attached to the other side of the weapon (2), characterized in that the latch (8, 13) at least at normal transverse load is insoluble.

2. Handgun (2) according to claim 1, characterized in that the detent (8, 13) from one on the other side of the weapon (2) attached to the rear-facing tab (7) is formed, which has a recess (13) in which a resiliently movable slide (1) arranged on the shoulder support (3) falls, which has no outwardly projecting, force-absorbing elements.

3. Handgun (2) according to claim 2, characterized in that the recess (13) is a through opening.

4. Handgun (2) according to one of claims 1-3, characterized in that the pivot axis (retaining pin 9) of the hinge (4) extends parallel to the associated side surface of the weapon (2).

5. Handgun (2) according to claim 4, characterized in that the hinge (4) sits on the right side of the weapon (2).

Hand gun (2) according to claim 1 to 5, characterized in that the or the predominant parts of the catch (1) and hinge (4) consist of plastic. Shoulder rest (3) for a handgun (2) according to one of claims 1 to 6.