WO2019165485A1

WO2019165485A1 - Stock for a portable firearm

Info

Publication number: WO2019165485A1
Application number: PCT/AT2019/060063
Authority: WO
Inventors: Harald Pichler; Steffen MALLON; Jochen Weiss
Original assignee: Steyr Arms Gmbh
Priority date: 2018-03-01
Filing date: 2019-02-26
Publication date: 2019-09-06
Also published as: AT520202A4; DE112019001074A5; AT520202B1

Abstract

The invention relates to a stock (1) for a portable firearm comprising a pistol grip (6) and a stock butt (7) adjoining the pistol grip, wherein: a substantially U-shaped recess (19) for inserting one's thumb is formed between the pistol grip (6) and the stock butt (7); a support (20) is inserted into the pistol grip (6), which support provides, at the upper end thereof, a supporting surface (30) for a recoil-guiding assembly (13) of the weapon; and a tension rod (22) acts on the support (20), which tension rod extends in the stock (1) below the U-shaped recess (19) and is loaded against a ledge (23) of the stock butt (7).

Description

Shank for a handgun

The present invention relates to a shaft for a handgun, comprising a pistol grip and an adjoining shaft piston, wherein between the pistol grip and the shaft piston is formed a substantially U-shaped recess for Dau meneingriff.

So-called puncture stems have been established on the hunting weapon market for some time, which add a distinctly embossed pistol grip with a very steep grip angle and a deep recess for the thumb or palm rest to ergonomically better grip the pistol grip. However, the deep U-shaped recess weakens the shaft and leads to a significant bending moment in the shaft area below the recess during recoil, which is a problem especially with plastic shanks.

It has therefore already been proposed to bridge the U-shaped recess for reinforcement by means of an upper-side strut. However, such a strut is extremely unfavorable for a weapon with Repetierverschluss because the strut egg ner liquid hand movement of the shooter during repeating extremely obstructive in the way.

The invention has set itself the goal of creating a stable, stre benlosen thumb shank.

This object is achieved with a shaft of the type mentioned in the intro, which is characterized according to the invention by the fact that in the pistol grip a carrier is used, which presents at its upper end a support surface for a recoil-carrying assembly of the weapon the Trä ger a pull rod attacks, which runs in the shaft under the U-shaped recess and is clamped against a shoulder of the piston shaft.

According to the invention thus the recoil force of the shot system of the weapon is first transferred to the carrier in the pistol grip ü and from there via the tie rod under the recess passed over into the shaft piston. As a result, the shaft is stiffened around the recess without the need for a disturbing strut would be required. The tensile stress on the tension rod ensures a gap-free installation of the carrier in the shaft, which compensates for manufacturing tolerances and provides dynamic stability.

The construction according to the invention is particularly suitable for the construction of shafts made of wood or plastic, wherein the carrier is made of a ben compared to the pistol grip and Schaftkol more rigid material, in particular of metal. The carrier can be made of high-strength and / or stainless steel, for example, or of aluminum.

Preferably, the pistol grip has an inner ramp surface against which the carrier is pulled by means of the tension rod, which gives a good introduction of force from the carrier into the pistol grip he. It is particularly advantageous if the ramp surface extends at an obtuse angle to the tension rod.

For stiffening the pistol grip and at the same time saving weight, the ramp surface can be formed, for example, by the end faces of a plurality of parallel inner longitudinal ribs of the pistol grip. The ramp surface or the Innenrip penseiten thus provide an inner slope, which derive the recorded from the carrier at its upper end recoil forces both downwards and in the direction of the tension rod out.

The downward force component of the carrier may e.g. be intercepted that this is supported on a nenabsatz in the pistol grip downwards, or simply by the fact that the tension rod connected to the carrier is supported in the region below the U-shaped recess in the shaft downwards. The latter variant has the advantage of easier production of the shaft without undercuts on the inside of the pistol grip.

According to a further preferred feature of the invention, a power transmission plate is provided between the carrier and the lower rear inner peripheral area of the pistol grip. seen. As a result, the repulsion forces occurring there can be dissipated over a large area into a lower, eg thick-walled, region of the pistol grip.

The support surface of the support for the recoil-carrying construction group may simply be a vertical front bearing surface of the carrier. Preferably, however, the support surface is designed as an L-shaped receptacle in the upper end of the carrier, so that it supports the recoil-carrying assembly both backwards and downwards.

It is particularly favorable if the support surface can be screwed to the assembly. This results in a rigid coupling between the assembly and the carrier, which fixes the carrier about this against a downward movement in the pistol grip.

The tension rod may engage the carrier in any manner known in the art, such as a hook type. Be preferred, the tension rod is bolted to the carrier, particularly preferably screwed into this. This results in a rigid coupling between the carrier and the tension rod, which stiffens the shaft even more.

In a further preferred embodiment of the invention, the shoulder of the shaft piston can be formed by a set by the tension rod bulkhead bulkhead of the piston, on which the tension rod rests with a rearward head. At the same time, the bulkhead wall stiffens the shaft piston, in particular if it is hollow and made of thin-walled plastic in order to save weight.

It is particularly favorable if the bulkhead wall is formed by the bottom of a pot-like insert which is inserted into the rear end of the shaft piston. On the one hand, the cup-shaped insert stiffens the shaft piston and, on the other hand, can be used as a storage space accessible from the rear of the piston, eg for receiving a reserve magazine, an exchangeable trigger group, etc. At the same time, the head of the tension rod is sunk and protected thereby. but still accessible for operation, eg if he as a screw head or nut for tensioning the tension rod is ausgebil det.

Preferably, a spring pack is interposed between the head and the bulkhead. In this way, a possible thermal or re- laxatory distortion of the shank can be compensated for in order to always keep the tension rod in pre-tension.

According to another preferred feature of the invention, the pistol grip may have a replaceable front part over which the carrier can be inserted into the pistol grip. On the one hand, this simplifies assembly and, on the other hand, allows individual configurations of the pistol grip through different front pieces. For these purposes, the pistol grip may also preferably have an exchangeable grip cap which can be screwed to the lower end of the carrier.

In order to save weight, the carrier preferably has interruptions in the manner of a truss girder.

The invention will be explained below with reference to an embodiment shown in the beige closed drawings nä ago. In the drawings shows:

Figure 1 shows the shaft of the invention in a Perspektivan view.

FIG. 2 shows the rear part of the shank of FIG. 1 in a partially cutaway perspective view; FIG.

Fig. 3 shows the rear part of the shaft of Figure 1 in section.

Fig. 4 shows the shaft of Figure 1 in a sectional view ent along the section line I-I of Fig. 3. and

Fig. 5 shows the shaft of Fig. 1 in a sectional view ent long the section line II-II of Fig. 3rd

In Fig. 1, a shaft 1 is shown for a (not further Darge presented) handgun, such as a hunting rifle, a can, a gun or the like. The shank 1 comprises a forearm 2 and a buttstock 3, the forend 2 being divided into two parts 4, 5 for reasons of production can. The buttstock includes 3 a pistol grip 6 and ei nen shaft piston. 7

The terms "top", "bottom", "front" and "rear" ("backwards") used herein refer to the normal use position of the shaft 1, as shown in FIGS. 1 to 3 ge, in which the front of the shaft 1 right, the back of the shaft 1 on the left, the top and the underside Un underside is shown below.

The shaft 1 is entirely made of wood, plastic or the like. manufactured, with the exception of conventional trim or cultivation parts, such as a handle plate 8 on the Untersei te of the forearm 2, a cheek rest or jaw 9 at the top of the shaft piston 7, an interchangeable Before derteils 10 of the pistol grip 6, a lower side Griffkap pe 11 of the pistol grip 6, a logo carrier 12 of Schaftkol bens 7, one on the rear end of the shaft piston 7 on set shoulder cap (not shown), etc., of which parts some or all may be made of a different material, eg Wood, leather and / or metal.

The shaft 1, more precisely, the forearm 2 and the upper loading area of the pistol grip 6 of the buttstock 3, takes a Sys tembettung 13 of metal, ie a kind of housing or base carrier, in or on which / which all at the firing be involved and thus recoiling assemblies of the weapon mounted on it. This recoil-bearing assemblies are example, the barrel with its closure and closure housing (not shown), cooperating with the closure tee group 14 (Fig. 2), cooperating with this trigger group 15, a magazine 16 in a magazine shaft 17 of the system bed 13 od. like. The trigger group 15 with bracket 18 and tongue (not shown), for example, for security purposes or for the purpose of modular interchangeability of the tee group 14 and the system bed 13 be removable. The system bedding 13 may be designed differently for other types of weapons, for example, with an integrated closure housing ("upper receiver") or the like.

If the shaft 1 is made of several parts, as here from a forearm 2 with two parts 4, 5 and a rear shaft 3, the system bed 13 can be used simultaneously for connecting all these parts 3, 4, 5. For example, the forearm parts 4, 5 are bolted to the system bedding 13, and the system bed 13 acts with - at the end to be explained in more detail - components of the buttstock 3 together to connect the forearm 2 and buttstock 3 together. Alternatively, it is also possible to form the forearm 2 and the buttstock 3 in one piece, or only the part 5 of the forearm 2 with the buttstock 3.

The buttstock 3, and here in particular the pistol grip 6 (without front part 10 and without handle cap 11, if they are interchangeable) together with the shaft piston 7 (without jaw 9, without logo carrier 12 and without shoulder cap, if they are auswechsel selbar), is preferred - although not necessarily carried out in one piece, ie to the rear part of the Pisto lengriffs 6 closes the shaft piston 7 (without cladding and attachments) preferably in one piece. Figs. 2 and 3 show this area in detail.

As shown in FIGS. 2 and 3, between the Pisto lengriff 6 and the shaft piston 7 a deep, approximately U-shaped recess 19 is formed. The recess 19 is for a handle of the thumb and as a support of the thumb bale out forms and thus allows a largely full Umfas sen of the pistol grip 6 by hand. Due to the deep A cut, which produces the recess 19 between pistol grip 6 and shaft piston 7 in the buttstock 3, this area of the buttstock 3 is claimed by the recoil of the weapon in the firing on bending. To increase the strength of this area is now the con struction described below. In the pistol grip 6, a carrier 20 is inserted. The carrier 20 is made of a compared to the material of Pistol lengriffs 6 and the shaft piston 7 more rigid material ge made, such as high-strength plastic or metal, such as steel or aluminum. The carrier 20 has approximately the shape of a flat, parallelogram-like bolt with openings 21 for weight saving, in the manner of a truss girder.

On the carrier 20 engages a pull rod 22, which in the rear under shaft 3 passes under the recess 19 over to the rear and is clamped against a shoulder 23 of the shaft piston 7. The tension rod 22 pulls the carrier 20 to the rear and thus biases the pistol grip 6, in the interior of which the carrier 20 is received, towards the rear in the direction of the shaft piston 7. The pull rod 22 could, for example, attack as a simple hook on the carrier 20, also articulated. In the embodiment shown here, however, the pull rod 22 is rigidly coupled to the carrier 20, so that the unit of carrier 20 and pull rod 22 forms a kind of L-shaped insert in the buttstock 3.

The tension rod 22 is formed in the example shown by a long screw which is screwed into a rear threaded bore 24 of the carrier 20 and is supported with its head 25 on the inner shoulder 23, preferably with the interposition of a spring assembly 26, e.g. from disc springs. Such a screw could also be installed in the opposite direction, ie be supported with its screw head 25 on the front of the carrier 20, enforce the carrier 20 and be screwed into a threaded bore of the shoulder 23. Alternatively, the train rod 22 may be a threaded rod, on the rear end of which a nut is mounted, which forms the head 25, and / or the tension rod 22 could be made in one piece with the carrier 20.

For the introduction of force from the carrier 20 in the pistol grip 6, the pistol grip 6 has a specially adapted to the back of the Trä gers 20 inner ramp surface 27, against which the pull rod 22 pulls the carrier 20. The ramp surface 27 runs - as the back of the carrier 20 - at an obtuse angle to the tension rod 22nd

The ramp surface 27 is formed for example by the end faces 28 of a plurality of parallel, in the pistol grip 6 from top to bottom extending inner longitudinal ribs 29 (Fig. 4). In order to prevent the carrier 20 sliding down along the run-on surface 27, the pull rod 22 may optionally be supported downwardly in the buttstock 3, for example below the U-shaped recess 19 on a shoulder or inner rib 28 of the buttstock 3.

About the carrier 20 in the pistol grip 6, the recoil forces from the system bed 13 on the buttstock 3 transmis conditions. The carrier 20 has for this purpose at its upper end a support surface 30 against which at least one recoil-leading assembly of the weapon, here entire system bedding 13, in the recoil direction (in Figs. 1-5: to the left) Abstüt zen can. If no system bedding 13 is used, the recoil-carrying assembly which is supported on the support surface 30 may be, for example, a closure housing, the knock-down assembly 14, a fixed closure (e.g., a tipping rifle), the barrel itself, and so forth.

The support surface 30 may be a substantially vertical surface on the front side of the carrier 20. Alternatively, the support surface 30 may form an L-shaped receptacle at the upper end of the carrier 20, so that the recoil-carrying assembly, here the system bed 13, can also be supported on the carrier 20 downwards.

The support surface 30 is optionally bolted to the recoil-carrying assembly, here the system bedding 13, see screw 31. As a result, the carrier 20 at the same time in Pisto lengriff 6 is fixed.

For uniform distribution of aufgenomme nen NEN recoil force on the buttstock 3 in the pistol grip 6 in the lower region between the rear inner circumference of the pistol grip 6 and the rear lower end of the carrier 20 a power transmission plate 32 are arranged, for example, made of metal or plastic. The Kraftübertragungs- plate 32 is adapted on the one hand to the shape of the rear inner circumference of the lower portion of the pistol grip 6 and on the other hand to the shape of the rear lower end of the carrier 20 in order to derive the recoil forces over a large area in a dickwan ended region 33 of the pistol grip 6, see Fig. 5.

The carrier 20 can be used in the pistol grip 6 at the same time to mount the handle cap 11, for example se by being screwed or bolted with holes 34 in the lower end of the carrier 20.

Furthermore, the carrier 20 can also be used to support the replaceable selvage front part 10 of the pistol grip 6. As shown in Fig. 3, the front part 10 to intervene with jumps before 35 in recesses 36 of the carrier 20 and by means of a support 20 mounted in the spring-loaded pressure piece 37, which engages in a corresponding recess 38 of the front derteils 10, are locked , The trigger group 15 may additionally lock after its insertion into the system bed 13 with its trailing edge 39 of the front part 10.

The paragraph 23, on which the pull rod 22 is supported in the rear shaft 3, for example, an inner shoulder, a transverse strut or a bulkhead in the interior of the shaft piston 7, on which the head 25 of the tension rod 22 rests on the spring assembly 26. In the example shown, the shoulder 23 or the bulkhead wall is formed by the bottom of a pot-like insert 40, which is inserted into the rear end of the shaft piston 7 and is supported with its pot rim 41 at the peripheral edge 42 of the shaft piston 7 which is open towards the rear. The accessible from the back of the shaft piston 7 through the pot opening 43 ago In nenraum 44 of the insert 40 can be used as storage space, for example, for a reserve magazine or the removed from zugsgruppe 15. By means of a (not shown) shaft or shoulder cap or in the opening 43 used closing cover or the like. can the interior 44 closed who the.

The jaw 9 is replaceably mounted on the shaft piston 7, for example, by engaging at its front end with a forward jump 45 in an undercut and at its rear end with a spring pin 46 in a locking opening 47 of the shaft piston 7. From the latching aperture 47, the spring bolt 46 can be e.g. be solved by means of a resiliently in the shaft piston 7 gela siege actuating pin 48 and unlocked.

The invention is not limited to the illustrated embodiment forms, but includes all variants and Modifika functions that fall within the scope of the appended claims.

Claims

Claims:

1. shank for a handgun, comprising a Pis tolengriff (6) and an adjoining shank piston (7), wherein between the pistol grip (6) and shank piston (7) has a substantially U-shaped recess (19) is formed from the thumb, characterized in that in the pistol grip (6) a support (20) is inserted, which presents at its upper end a support surface (30) for a recoil-carrying assembly (13) of the weapon, wherein on the support (20) a tension rod (22 ) engages, which recess in the shaft (1) under the U-shaped recess (19) and against a shoulder (23) of the shaft piston (7) is stretched.

2. Shank according to claim 1, characterized in that the shank (1) made of wood or plastic and the carrier (20) is made of a compared to the pistol grip (6) and shank piston (7) more rigid material, preferably made of metal.

3. Shank according to claim 1 or 2, characterized in that the pistol grip (6) has an inner ramp surface (27), against which the carrier (20) is pulled by the tension rod (22).

4. shank according to claim 3, characterized in that the run-on surface (27) at an obtuse angle () to the pull rod (22).

5. Shank according to claim 3 or 4, characterized in that the ramp surface (27) of the end faces (28) meh eral parallel inner longitudinal ribs (29) of the pistol grip (6) is formed.

6. Shank according to one of claims 1 to 5, characterized in that the tension rod (22) in the region under the U-shaped recess (19) in the shank (1) is supported abge downwards.

7. Shaft according to one of claims 1 to 6, characterized in that between the carrier (20) and the lower rear inner peripheral portion of the pistol grip (6), a power transmission plate (32) is provided.

8. Shank according to one of claims 1 to 7, characterized in that the support surface (30) is designed as an L-shaped receptacle in the upper end of the carrier (20).

9. Shank according to one of claims 1 to 8, characterized in that the support surface (30) with the assembly (13, 14) can be screwed.

10. Shaft according to one of claims 1 to 9, characterized in that the tension rod (22) with the carrier (20) is screwed ver, preferably screwed into this.

11. Shaft according to one of claims 1 to 10, characterized in that the shoulder (23) of the shaft piston (7) by a pull rod (22) penetrated bulkhead of the shaft piston is formed, on which the tension rod with a rear head (25 ) is present.

12. Shaft according to claim 11, characterized in that the bulkhead (23) is formed by the bottom of a pot-like insert (40) which is inserted into the rear end of the piston shaft (7).

13. Shank according to claim 11 or 12, characterized in that between head (25) and bulkhead (23) a spring assembly (26) is interposed.

14. Shaft according to one of claims 1 to 13, characterized in that the pistol grip (6) has an exchangeable front part (10), via which the carrier (20) in the Pisto lengriff (6) can be inserted.

15. Shaft according to one of claims 1 to 14, characterized in that the pistol grip (6) has an exchangeable handle cap (11) which is screwed to the lower end of the carrier (20).

16. Shaft according to one of claims 1 to 15, characterized in that the carrier (20) has openings (21) in the manner of a truss girder.