EP2021728A1

EP2021728A1 - Shoulder stock comprising a storage compartment

Info

Publication number: EP2021728A1
Application number: EP07725426A
Authority: EP
Inventors: Norbert Fluhr; Johannes-August Bantle
Original assignee: Heckler und Koch GmbH
Current assignee: Heckler und Koch GmbH
Priority date: 2006-05-29
Filing date: 2007-05-22
Publication date: 2009-02-11
Also published as: US20090178323A1; DE102006033260B3; WO2007137735A1; CA2653737A1; KR20090018797A

Abstract

The invention relates to a shoulder stock comprising a shoulder stock base (1), a stock plate (3), at least one storage compartment (23) defined by the shoulder stock base (1), and a liquid-tight closing cover which is formed by the stock plate (3), said stock plate being detachably fastened to the back of the shoulder stock base (1) by means of a bayonet lock (9, 21, 25).

Description

Shoulder rest with storage space

The invention relates to a shoulder rest with a shoulder rest body, a butt plate and at least one accommodation space, delimited by the shoulder rest body, which is set up, for example, to accommodate a battery.

For positional designations such as "top", "front", "vertical" etc., a weapon in a normal, non-edged attack with a horizontal barrel is assumed, the shoulder rest of which is equipped with an accommodation space.

Rifles often have an accommodation space in the butt stock or in the shoulder rest, which is used to store cartridges, such as a shotgun barrel and bullet cartridges, cleaning supplies or the like. serves. Such accommodation rooms are known from ancient times and were used before the middle of the 19th century to accommodate flints, paving stones and. The like. At least in the case of military rifles, such as the US .30 M 1 carbine, in which cleaning supplies were housed in the accommodation space, the accommodation space should be protected from moisture, which is still the case today, at least at a price that is still portable even in mass production. has not yet succeeded. For example, in the US carabiner, there was a rifle in the accommodation space, which in turn was watertight. The accommodation room was closed by a steel lid, which was embedded in the butt plate and, after a break, had to be opened around a hinge located on the edge. It was not waterproof, because even with an underlying rubber sealing ring, it would have leaked, since it would have been compressed differently on one side. In addition, the lid was difficult to open what often broken fingernails. Rust made this

The situation was worse when a broken detent spring flipped the lid back and forth and questioned the correct use of the weapon.

The butt plate was screwed to the stock wood, as has been the case since at least the middle of the 18th century. This tradition of screwing the buttplate has passed into the flesh and blood of the designers so that the buttplate is screwed to the shoulder rest body or butt, even with plastic butts (e.g. the Remington rifle "Nylon").

There are weapons with a waterproof ammunition container (comet signal pin), in which the container is covered by a screw cap, under which a seal is inserted, but this cap can only be attached to the buttplate with considerable restrictions and, moreover, forms because it is quite small, an easily lost part. After all, it offers a solution when trying to create a tight accommodation space in the rifle.

Modern rapid-fire rifles or the like. often need batteries that either have to be located directly on the rifle or at least should be kept there in reserve. These batteries are now moisture-proof, especially if they are connected to contacts, but should be easily accessible. Although it is possible to store them in a separate, moisture-proof sleeve, which is located in the accommodation space, which in turn does not have to be moisture-proof, this solution is cumbersome and also expensive. The above-mentioned US .30 M 1 carabiner, which began manufacturing in the early 1940s, uses this principle but nowadays as a military weapon only for special units in the

Price still reasonable.

The tradition of handguns knows a multitude of solutions, such as so-called stock magazines, even tube magazines necessary for shooting (Spencer, patented 1860; FN small-caliber machine "Browning"), some of which are manufactured with considerable effort and even provide quite good moisture seals if also at a price that is only justified today with luxury rifles.

Although there are a number of viable solutions, a better solution should be sought if possible, which is moisture-proof, easy and can be opened repeatedly, without being damaged, inexpensively and without tools. If possible, only very few additional parts should be necessary to lock the accommodation space, and the accommodation space should only be able to be opened to the rear so that it is protected as much as possible when using the rifle. Suitability for mass production with little or no accuracy monitoring is a requirement.

This object is achieved in that the accommodation space has a liquid-tight closure cover, which is formed by the butt plate, which is detachably attached to the rear of the shoulder support body by means of a bayonet catch. The accommodation space or the accommodation spaces do not have their own cover, but are covered by the butt plate, as was the case with the Swiss military rifles, where there was only a piece of paper under the butt plate with the name of the person to whom it was attached Rifle was spent. In the invention, however, the buttplate is not used as a hiding place, but rather as a lid. The attachment of the butt plate to the shoulder rest body by means of a bayonet lock breaks against everyone Tradition. Nevertheless, this attachment is reliable and permanent. It is particularly important here, however, that this method of fastening the butt plate leads to the moisture-tight closure of at least one accommodation space being carried out with the least possible number of elements. In the ideal case, there are two parts less than with a conventional butt plate, which needs at least two screws, but does not cover any rooms.

The bayonet catch can, for example, be off-center, so that practically the entire cross-sectional area of the shoulder support body can be released by pivoting the butt plate, so that correspondingly large accommodation spaces can also be created. A preferred one

Embodiment of the invention is that the

Bayonet lock is formed by a central bolt which extends from the shoulder support body to the rear

(Claim 2). In the case of a rapid-fire rifle, there are two accommodation spaces on either side of the vertical longitudinal plane of the rifle, the breech path or its extension being kept clear. Such accommodation spaces are ideal for storing batteries.

This arrangement has the advantage that both accommodation spaces are located equally close to the center bolt, so that this, as a fixed anchoring point, ensures the sealing of the accommodation spaces.

According to a further development, it is preferred that the butt plate has a recess which receives the central bolt and secures the butt plate when it is turned (claim 3). So an existing military or rapid fire rifle can be converted, whereby the existing butt stock can be taken over, since all facilities for Lock the accommodation rooms behind the

Buttstock body and in the area of the butt plate.

According to a further embodiment of the invention, it is particularly preferred that, when the butt plate is closed, an elastomer layer is arranged over the or each accommodation space, which is in engagement with the edge of the accommodation space (claim 4). This layer of elastomer corresponds to the rubber washer which seals a cylindrical screw sleeve, but the invention is of course not limited to cylindrical housing spaces. This elastomer layer ensures the seal even if there are certain tolerances in large-scale production that can only be sealed by a compressible seal.

A butt plate was traditionally made of metal, but more and more people are going to use a rubber or elastomer cap, as this not only adheres better to clothing and dampens the recoil, but especially the one that is set up against the wall or an object Prevents rifle from slipping and falling over. In the case of hollow plastic shoulder rest bodies, there is a particular problem in that the butt plate is not evenly underlaid by the shoulder rest body. It is therefore preferred that the butt plate consists of a rigid layer and an elastomer layer attached behind the rigid layer (claim 5). The rigid layer can additionally form the bayonet catch according to the invention, while the rear elastomer layer is suitable for forming the layer for supporting the weapon.

So it is particularly preferred that the rigid layer

Has recess that fits over the center bolt, that preferably over the or each respective accommodation space in the rigid layer, with the butt plate closed, one

Recess is arranged, and that an elastomer layer sits in the recess (claim 6). The rigid layer can be cast in a simple and economical manner from zinc or plastic, for example, and then provided with the sealing elastomer layer.

It is particularly preferred that the recess or recesses is or are continuous, and that the elastomer layer is formed by the elastomer layer that forms the rear part of the butt plate (claim 7). The rear elastomer layer simply protrudes through the recesses, which are nothing more than holes, and seals on the accommodation spaces. The elastomer layer is chosen so stiff that it still has the properties of an elastomer layer, but is so hard that it offers the necessary hold for sealing. An elastomeric material such as that used for car tires is suitable, for example.

In principle, it is sufficient if the central pin guides and holds the butt plate. However, in order to avoid the squeezing of objects, such as straw or the like, between the butt plate and the shoulder rest body, it is proposed that, preferably at the edge of the shoulder rest body, at least one protruding design is provided which engages behind the rigid layer of the butt plate ). This hook-shaped design preferably engages behind the rigid layer at the points that are furthest away from the central bolt, namely above and below.

According to a further embodiment of the invention, it is particularly preferred that the or at least one protruding design has a latching design into which a latch can occur, which is formed on the elastomer layer, which forms the rear part of the butt plate (claim 9). In this way it is ensured that the butt plate is seated firmly and immovably, so that the stop is not impaired and the elastomer layer is not scraped off and / or the tightness is impaired by the elastomer layer slipping on the accommodation spaces. Since the parts of the catch can be formed in one piece with the shoulder support body or with the elastomer layer of the butt plate, no additional manufacturing effort is required.

It is particularly preferred that the detent pawl has a handle which projects transversely to the butt plate, which engages in the detent formation and can be lifted out of the detent formation (claim 10). In this way, the rest can be released without tools, but is also kept closed in the stop because the shoulder then presses the handle into the rest.

The shoulder support body is preferably made of plastic

(Claim 11). As a result, the accommodation spaces are particularly dense because there is no water through the side walls of the

Can shoulder rests body sick ^'s, even if it for days the rain is exposed. You can also use a single

Even complicated training can be made ready for use. The working time per workpiece is reduced to seconds.

The elastomer layer and the rigid layer are preferably glued, cast or vulcanized to one another and the rigid layer consists of plastic (claim 12). In this way, the elastomer layer and the rigid layer can be injection molded with great accuracy, even if they are should have different thermal expansion, and can be attached to each other exactly.

The bayonet catch, the design (s) and / or the rigid layer are particularly preferably designed such that at least in the last region of the rotation of the butt plate when they are attached to the shoulder rest body, they press the butt plate onto the shoulder rest body (claim 13), for example by bevelling Guide ribs or aisles on the center bolt. This ensures in a simple manner that the butt plate can be put on effortlessly, but then approaches the shoulder support body when twisted, the elastomer layer being compressed above the accommodation spaces in such a way that it also compensates for large tolerances by this compression. Thus, any burrs, cracks or the like that are formed are sealed with the elastomer material of the elastomer layer. Even with the roughest production, the sealing of the accommodation spaces is always guaranteed.

Thus, a shoulder rest is created that has fewer parts than was previously the case, and yet has one or more accommodation spaces in the shoulder rest body and seals perfectly, even if there is a rough production of war.

Another advantage is that caps with different geometries (concave or convex) can be exchanged in a matter of seconds.

The object of the invention is explained in more detail with reference to the drawing using an exemplary embodiment. The drawing shows: Fig. 1 a shoulder rest according to the invention in the

Side view,

2 shows the shoulder rest of FIG. 1, in longitudinal section,

3 is a top view of the shoulder rest,

4 is an oblique view of the shoulder rest body, with the butt plate removed,

5 shows the view of the shoulder support body, seen from behind,

Fig. 6 is an illustration as in Fig. 1, but without butt plate, and

Fig. 7 shows a longitudinal section through the butt plate.

All figures show the same embodiment. They are therefore not dealt with in detail.

A shoulder support body 1 is injection molded from plastic and ends with a flat, approximately vertical surface which is delimited by the lower and upper design 15, 11 projecting to the rear. Two accommodation spaces 23 with an overall round cross-section open into this flat surface, which are arranged on both sides of an imaginary, vertical center line that connects the upper and lower formations 11, 15 to one another.

The lower and the upper training 15, 11 are hook-shaped in cross section facing each other, so that they can receive and hold the rigid layer 5 of a butt plate 3 between them. The upper training has an inclined inlet surface 13 and on the Top (Fig. 4) a recess 19 and a groove 31, in which a locking finger 17 (Fig. 2) can fall.

In the middle of the shoulder support body 1, a central bolt 9 extends rearward and beyond the flat surface. This center bolt 9, which on the vertical

Center line, but not exactly on the horizontal

Center line sits, has a guide rib on the right and left

21 (Fig. 4). The center pin 9 sits below the accommodation spaces 23 close to these.

The rigid layer 5 has a depression 25, which is designed as a through hole and has an extension at the top and bottom, so that the depression 25 can be pushed over the central bolt 9 and its guide ribs 21 if the rigid layer 5 compared to the illustration in FIG 1 or 2 is rotated by 90 °, that is to say pivoted out of the image plane. The guide ribs are of different widths, so that an incorrect fitting of the cap (butt plate) is not possible.

If the rigid layer 5 is pivoted back into its position shown in FIG. 1, then its upper and lower ends run into the hook-shaped upper and lower formation 11, 15. The rearward-facing outer surfaces of the strips of the rigid layer 5 assigned to the formations 11, 15 and also to the guide ribs 21 are designed as inclined surfaces 29, as are the correspondingly assigned, forward-facing surfaces of the formations 11, 15 and the guide ribs. Thus, the rigid layer 5 is pressed firmly against the flat, rear surface of the shoulder support body 1.

On the back of the rigid layer 5, an elastomer layer 7 is glued (Fig. 7), which is on the top has the locking finger 17, which stands up. The upper

Training 11 has the rear-facing groove 31, which opens into the upwardly widened and open recess 19. The locking finger 17 of the elastomer layer 7 runs when it is with the rigid layer 3 upwards in the end position

(Fig. 1) is pivoted onto the inclined inlet surface 13 of the upper formation 11, is lifted back and finally falls into the groove 31. You take it to solve

Tip of the locking finger 17 in the recess 19 and pushes it back a little until it comes out of the groove 31 and you get the stiff layer 5, which with the

Elastomer layer 7 is glued, can turn horizontally again.

The elastomer layer 27 is guided through the rigid layer 5 so that it protrudes slightly from it in order to act as a sealing element. Alternatively, in the area of the stiff layer 5 facing the accommodation spaces 23, a thin elastomer layer 27 can be glued on, which is compressed when the stiff layer 5 is pressed against the shoulder support body 1 in the inclined surfaces 13 of the formations 11, 15. The accommodation spaces 23 are now completely sealed.

Claims

1. shoulder rest with a shoulder rest body (1), a butt plate (3), at least one accommodation space delimited by the shoulder rest body (1)

(23) and a liquid-tight cover, which is formed by the butt plate (3), which by means of a

Bayonet catch (9, 21, 25) on the back of the

Shoulder support body (1) is detachably attached.

2. shoulder rest according to claim 1, wherein the bayonet lock (9, 21, 25) is formed by a central bolt (9) which extends from the shoulder rest body (1) to the rear.

3. shoulder support according to claim 2, wherein the butt plate (3) has a recess (25) which receives the central pin (9) and axially secures the butt plate (3) when twisted.

4. Shoulder rest according to one of the preceding claims, in which, when the butt plate (3) is closed, an elastomer layer (27) is arranged over the or each accommodation space (23), which is in engagement with the edge of the accommodation space (23).

5. Shoulder rest according to one of the preceding claims, wherein the butt plate (3) made of a rigid layer

(5) and an elastomer layer (7) attached behind the rigid layer (5).

6. The shoulder support of claim 5, wherein the rigid layer (5) has the recess (25) that fits over the center bolt (9), over the or each respective housing space (23) in the rigid Layer (5), with a closed butt plate (3), preferably a recess is arranged, and an elastomer layer (27) sits in the recess.

7. shoulder rest according to claim 6, wherein the recess is continuous, and the elastomer layer (27) is formed by the elastomer layer (7) which forms the rear part of the butt plate (3).

8. shoulder support according to one of the preceding claims, in which at the edge of the shoulder support body (1) at least one rear projecting formation (11, 15) is provided which engages behind the rigid layer (5) of the butt plate (3).

9. shoulder rest according to claim 8, wherein the or at least one protruding formation (11) a

Has latching formation (31) into which a latch

(17) can occur, which is formed on the elastomer layer (7), which forms the rear part of the butt plate (3).

10. shoulder rest according to claim 9, wherein the latch (17) has a transversely to the butt plate (3) projecting handle which engages in the locking formation (31) locking and can be lifted from the locking formation (31).

11. Shoulder rest according to one of the preceding claims, in which the shoulder rest body (1) consists of plastic.

12. shoulder support according to one of claims 5 to 11, wherein the elastomer layer (7) and the rigid layer (5) are glued, vulcanized or potted together, and the rigid layer (5) consists of plastic.

13. Shoulder rest according to one of the preceding claims, in which the bayonet catch (9, 21, 25), the formation (s) (11, 15) and / or the rigid layer (5) are designed such that at least in the last area of the Rotation of the butt plate (3) for the purpose of fastening on the shoulder rest body (1) the butt plate (3) is pressed onto the shoulder rest body (1).