EP1975541B1 - Butt for a repeating rifle and receiver of such a rifle for such a butt - Google Patents

Description

The invention relates to a shaft of a repeating rifle, a system box of a repeating rifle for such a shaft and a repeating rifle with such a system box and shaft.

Shafts of handguns are designed differently depending on weapon type. They can be made of one piece or of several parts. In Kipplaufgewhren and self-loading rifles, the shaft is usually divided into a fore-end and a buttstock. Even with some repeating rifles, the stem consists of a front and rear stem, which are attached to a system box. This often results in the problem that the connection areas of the shaft parts for connection to the system box must be made relatively complex and expensive to ensure a clean shank connection.

From the WO 2007/030843 A1 a shaft of a repeating rifle is known with a connection area for connecting the shaft to a system box, in which the connection area contains arched front-side connecting surfaces for bearing against correspondingly curved contact surfaces of the system box and an inwardly tapering recess.

The object of the invention is to provide a shank of a repeating rifle, a system box of a repeating rifle for such a shank and a repeating rifle with such a system box and shank that allow an improved shank connection.

This object is achieved by a shaft of a repeating rifle with the features of claim 1, by a system box of a repeating rifle with the features of claim 9 and by a repeating rifle with the features of claim 13.

Advantageous developments and advantageous embodiments of the invention are the subject of the dependent claims.

In the case of the shank according to the invention, the lower abutment surface allows a good support of the shank and can prevent downward movement of the shaft fastened to the system sheath. The shaft is easy and accurately mounted and has a good support both in the lateral direction and up and down, even without high axial withdrawal forces. Due to the special design of the connection area occurs in the shaft a lower load in the fiber transverse direction and it is a particularly stable and secured against displacement connection between the shaft and the system box allows.

The system box is adapted to the inventive design of the shank and has for attachment of a front and rear shank on its underside a front wedge-shaped tapered front end part for the forearm and a rear wedge-shaped tapered rear end part for the buttstock. On the system box upper support surfaces are provided for supporting the lower contact surfaces of the shaft.

It has proved to be particularly useful when the front end parts on the system box and the associated recesses on the forend have a wedge angle of 8.2 ° and the rear end parts with the associated recesses on the butt shaft have a wedge angle of 26.84 °. As a result, a good centering without clamping is achieved.

The end parts on the system box and the corresponding recesses on the shaft are preferably rounded at their corners. As a result, a notch effect is avoided.

The connection region of the shank preferably has S-shaped arched end faces and the system box has correspondingly curved side abutment surfaces.

The inwardly tapering recess of the shaft is expediently arranged below two side cheeks of the connection region. On the inner sides of the side cheeks spaced apart and mutually parallel side surfaces are provided for contact with lateral guide surfaces of the system box. This achieves a good lateral shank support.

Figur 1

einen Systemkasten mit einem Vorder- und Hinterschaft eines Repetiergewehrs in einer Seitenansicht;

Figur 2

den Systemkasten des in Figur 1 gezeigten Repetiergewehrs in einer Perspektive;

Figur 3

den Systemkasten von Figur 1 in einer Seitenansicht;

Figur 4

den Systemkasten von Figur 1 in einer Unteransicht;

Figur 5

den Vorderschaft des in Figur 1 gezeigten Repetiergewehrs in einer ersten Perspektive;

Figur 6

den Vorderschaft des in Figur 1 gezeigten Repetiergewehrs in einer zweiten Perspektive;

Figur 7

einen Teil vom Hinterschaft des in Figur 1 gezeigten Repetiergewehrs in einer Perspektive von vorne und

Figur 8

einen Teil vom Hinterschaft des in Figur 1 gezeigten Repetiergewehrs in einer Perspektive von unten.

Other features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings. Show it:

FIG. 1

a system box with a front and rear shaft of a repeating rifle in a side view;

FIG. 2

the system box of in FIG. 1 shown repeating rifles in a perspective;

FIG. 3

the system box of FIG. 1 in a side view;

FIG. 4

the system box of FIG. 1 in a bottom view;

FIG. 5

the fore-end of the in FIG. 1 shown repeating rifle in a first perspective;

FIG. 6

the fore-end of the in FIG. 1 shown repeating rifles in a second perspective;

FIG. 7

a part of the butt of the in FIG. 1 shown repeating rifles in a perspective from the front and

FIG. 8

a part of the butt of the in FIG. 1 shown repeating rifles in a perspective from below.

In FIG. 1 is a part of a repeating rifle with a closure housing or system box 1, a forearm 2 and an attached to the system box 1 butt shaft 3 shown schematically. At the bottom of the system box 1, a trigger device, not shown, with trigger guard and integrated plug-in magazine can be releasably attached.

The in the FIGS. 2 to 4 in different views illustrated system box 1 includes according to FIG. 2 a front support area 4 and a rear guide area 5 with upper guide grooves 6, in which a closure (not shown here) with locking chamber is displaceably guided in a manner known per se. The front support area 4 also does not include an upper support surface 7 for the rear part of one shown run, which is fastened to the system box 1 via holes 8. At the rear guide region 5 of the system box 1, front and rear S-shaped curved contact surfaces 9 and 10 are respectively provided for corresponding connection surfaces of the front and rear shafts on the two outer sides. The system box 1 contains a magazine shaft 11 into which a magazine can be inserted from below.

How special from the FIGS. 3 and 4 shows, the system box 1 on its underside below the contact surfaces 9 and 10, a front wedge-shaped tapered front end portion 12 and a rear wedge-shaped tapered rear end portion 13. The wedge angle α of the forwardly tapered front end portion 12 is 8.2 °, while the rearward wedge-shaped tapered rear end portion 13 has a wedge angle β of 26.84 °. Due to the wedge-shaped end parts 12 and 13, a good centering of the front and rear shank is achieved without the shanks widening or jamming during attachment to the system box 1. The two end parts 12 and 13 are rounded at their ends.

The system box 1 includes at its rear end a step-shaped projection 14 with parallel lateral guide surfaces 15 and an upper support surface 16. At the neck 14 above the support surface 16, a pin 17 is integrally formed with a threaded hole for attachment of the backshaft 3. The front support area 4 of the system box 1 has a wider portion adjoining the guide area with parallel lateral guide surfaces 18 and a slender front portion with lateral guide surfaces 19 and upper support surfaces 20 on both sides. The slender front part of the support area 4 has an upside-down T-profile, with the lateral guide surfaces 19 on the narrower upper part and the upper support surfaces 20 perpendicular thereto at the transition to the wider lower part. The upper support surfaces 16 and 20 are abutment, by which a displacement of the attached to the system box 1 front or rear shaft 2 and 3 is prevented downward.

The in the FIGS. 5 and 6 The illustrated forearm 2 includes a rearward connecting portion 21 having two parallel side cheeks 22 and an inwardly tapered lower recess 23 that conforms to the shape of the front end portion 12 on the system box 1. According to the front end part 12 on the system box 1 also has the wedge-shaped tapered recess 23 on the underside of the forearm 2 a wedge angle of 8.2 °. The side cheeks 22 have S-shaped arched end faces 24 for abutment with the corresponding contact surfaces 9 of the system box 1. On the inside of the two side cheeks 22 are spaced apart and mutually parallel side surfaces 25 and 26 for abutment with the lateral guide surfaces 18 and 19 of the system box intended. The more widely spaced side surfaces 25 are for abutment with the lateral guide surfaces 18 of the wider part and the closer together side surfaces 26 for abutment with the lateral guide surfaces 19 of the slimmer part at the front support portion 4 of the system box 1 determined.

By means of a T-shaped groove 27 running in connection part 21 in the longitudinal direction of the forend shaft 2, a lower contact surface 28 for supporting the forearm 2 on the upper support surfaces 20 of the system box 1 is formed on the inside of the side cheeks 22 below the side surfaces 26. Due to the support of the lower contact surfaces 28 on the upper support surfaces 20 of the system box 1, a displacement of the forearm 2 is prevented down. The dimensions of the T-shaped groove 27 are matched to the T-profile of the front part of the support area 4 of the system box 1. At the transition from the side surfaces 25 to the recess 23 are in FIG. 6 recognizable small triangular lower bearing surfaces 29 present. With these small contact surfaces 29 of the forearm 2 is located on the front end part 12. In the upper part of the rear connection region 21 are on the inside of the side cheeks 22 opposite guide grooves 30, which adjoin the guide grooves 6 of the system box 1 for guiding the closure.

As in the FIGS. 7 and 8 shown, the buttstock 3 for connection to the system box 1 includes a front terminal portion 31 also with two parallel side walls 32 and an inwardly tapered lower recess 33, which is adapted to the shape of the rear connection part 13 at the lower end of the system box. Corresponding to the rear end part 13 on the system box 1, the wedge-shaped tapering recess 33 also has a wedge angle of 26.84 ° on the underside of the rear shaft 3. Also on the buttstock 3, the two side cheeks 32 each S-shaped curved end face pads 34, which arrive at mounted butt stock 3 to rest against the correspondingly shaped bearing surfaces 10 of the system box. On the inside of the two side cheeks 32 are spaced apart and mutually parallel side surfaces 35 provided for contact with the lateral guide surfaces 15 at the base 16 of the system box 1. Between the two side cheeks 32 is a rear surface 36 having an opening 37 for receiving a threaded rod and a perpendicular thereto lower abutment surface 38, which comes to rest on the upper support surface 16 of the system box 1. Due to the support of the lower abutment surface 38 on the upper support surface 16 of the system box 1, a displacement of the rear shaft is prevented down. As on the forearm 2 are at the transition from the side surfaces 35 to the recess 33 in FIG. 8 recognizable small triangular bearing surfaces 39 are provided, with which the buttstock 3 rests on the rear end part 13.

Claims (13)

1. Stock (2; 3) of a repeating rifle with a connecting area (21; 31) for connection of the stock (2; 3) with a receiver (1), wherein the connecting area (21, 22) comprises curved end connecting faces (24; 34) for bearing on correspondingly curved bearing faces (9; 10) of the receiver (1) and an inwardly tapering recess (23; 33) underneath two side cheeks (22; 32) of the connecting area (21; 31) on the underside, and wherein the connecting area (21; 31) of the stock (2; 3) exhibits a lower bearing face (28; 38) for resting on an upper supporting face (16; 20) of the receiver (1), characterised in that spaced parallel side faces (25; 35) are provided on the insides of the two side cheeks (22; 32) for bearing on side guide faces (18; 15) of the receiver (1) and triangular lower supporting faces (29; 39) are located at the junction between the side faces (25; 35) and the recess (23; 33).
2. Stock according to claim 1, characterised in that the end connecting faces (24; 34) are curved with an S-shape.
3. Stock according to claim 1 or 2, characterised in that the inwardly tapering recess (23; 33) is rounded at the corners.
4. Stock according to one of claims 1 to 3, characterised in that it is embodied as a forestock (2) wherein the inwardly tapering recess exhibits a wedge angle of 8.2°.
5. Stock according to claim 4, characterised in that the lower supporting face (28) is formed by a T-shaped slot (27) in the connecting area (21).
6. Stock according to claim 5, characterised in that facing guide slots (30) are provided in the upper part of the connecting area (21).
7. Stock according to one of claims 1 to 3, characterised in that it is embodied as a butt stock (3), wherein the inwardly tapering recess exhibits a wedge angle of 26.84°.
8. Stock according to claim 7, characterised in that the lower supporting face (38) runs at right angles to a rear face (36) of the connecting area (31).
9. Receiver (1) of a repeating rifle which for connection of a stock (2, 3) according to one of claims 1 to 8 on its underside comprises a front terminating part (12) tapering towards the front and a rear terminating part (13) tapering towards the rear and upper supporting faces (16, 20) for supporting the lower bearing faces (28, 38) of the stock (2, 3), wherein at its rear end it exhibits a step-shaped projection (16) on which is formed the upper supporting face (16) for supporting the lower bearing faces (38) of the butt stock (3), and wherein it comprises a front supporting area (4) on which are formed side guide faces (18, 19) and upper supporting faces (20) at right angles thereto for supporting the lower bearing faces (28) of the forestock (2).
10. Receiver according to claim 9, characterised in that the front terminating part (12) exhibits a wedge angle α of 8.2° and the rear terminating part (13) exhibits a wedge angle β of 26.84°.
11. Receiver according to claim 10 or 11, characterised in that on the outsides it exhibits in each case front and rear bearing faces (9, 10) curved with an S-shape for corresponding connecting faces (24, 34) of the forestock and butt stock (2, 3).
12. Receiver according to one of claims 9 to 11, characterised in that it comprises a rear guide area (5) with upper guide slots (6) for guidance of a displaceable action.
13. Repeating rifle with a receiver (1) and at least one stock (2, 3), characterised in that the stock (2, 3) is embodied according to one of claims 1 to 8 and the receiver (1) is embodied according to one of claims 9 to 12.

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