DE102010032592B4 - Firearm with eccentric small-caliber cartridge butt and eccentrically pivoting barrel - Google Patents

Abstract

Firearm with a chamber lock (18), which has a small-bore rimfire cartridge chamber lock head (2) which is reversibly and interchangeably provided at the muzzle-side end (6) of its chamber lock body (1), whereby - based on the cross-sectional area of the chamber lock - Body (1) - in the center and center, a central fire cartridge firing pin (3), which is aligned parallel to the longitudinal axis (4) of the large-caliber central fire cartridge chamber lock body (1) and can be moved back and forth on the muzzle and shaft side in the direction of the muzzle (9) Small-bore change barrel (7) projects beyond the muzzle-side end (6) of the chamber lock body (1), characterized in that the replaceable small-bore chamber lock head (2) on its muzzle-side end face (11) provides a cartridge impact floor (12) for Has small-caliber cartridges (25), the geometric, central center of gravity (5) of the central longitudinal axis (4) of the large-caliber central fire cartridge chamber lock body (1) - and thus relative to its central fire cartridge firing pin (3) - is offset eccentrically at a distance A which is in the range from 1.0 mm to 5.0 mm, so that the central fire cartridges -Ignition pin (3) of the large-caliber central fire cartridge chamber lock body (1) - for firing a small-caliber rimfire cartridge (25) - on the edge area of one on the eccentric ...

Description

The present invention relates to a large-caliber firearm with a large-caliber central fire cartridge chamber lock, which allows shooting with small caliber rimfire cartridges after a particularly simple and fast conversion, with the features specified in the preamble of claim 1.

So far, it was necessary for shooters to own two rifles - namely a large-caliber rifle and a small-caliber rifle - if a large-caliber rifle owner wanted to have a small-caliber Schonzeitbüchse or - while avoiding the use of expensive large-caliber cartridges - a wanted to perform cheaper training shooting with significantly cheaper small caliber cartridges.

The hitherto required possession of two rifles - namely a large-caliber rifle and a small-caliber rifle - is disadvantageous in particular under the aspect of duplicate and thus more expensive acquisition expenses.

Another disadvantage of the previously required simultaneous possession of a large-caliber rifle and a small-caliber rifle is to be seen in a doubling of the bureaucracy effort, for example, for the cost associated with obtaining two weapons possession cards.

Also, the storage of an additional, second rifle in a gun cabinet, with mostly already much limited space, can be problematic.

Object of the present invention is therefore to provide a firearm, which can shoot in their delivery state large caliber cartridges and after a particularly simple and fast conversion small caliber cartridges, which no longer require the financial investment acquisition of a separate small caliber for the owner of a large caliber rifle -Gewehres required if he wants to dispose of a small-caliber Schonzeitbüchse or wants to carry out a particularly inexpensive small caliber cartridge training shooting, which makes bureaucratic and financial effort associated procurement of a second firearms card for a separate small-caliber rifle superfluous and which in the weapon cabinets only limited space available particularly sparing.

According to the invention this object is achieved in a generic firearm by the features specified in the characterizing part of patent claim 1. Particularly preferred embodiments are the subject of the dependent claims.

Embodiments of the invention will be described in more detail with reference to the drawings. Show it:

1 a schematic, fragmentary vertical longitudinal section through a firearm according to the invention with a small caliber cartridge closure head, along the longitudinal axis of the shell of the small caliber exchange barrel displaceable and rotatable small caliber cartridge supply and a rotatable about this longitudinal axis small caliber barrel tube;

2 a schematic, perspective view of the in 1 illustrated section of a firearm according to the invention obliquely from behind the top;

3 a schematic, perspective view of the in 1 illustrated section of a firearm according to the invention obliquely from above at the top;

4 a schematic, perspective side view of a chamber closure with a chamber closure body and attached a small caliber rimfire cartridge chamber closure head;

5 a schematic, perspective side view of the in 4 illustrated chamber closure with separate chamber closure body and small caliber rimfire cartridge chamber closure head;

6 a schematic perspective front view of a small caliber rimfire cartridge chamber closure head obliquely from below;

7 a schematic, perspective front view of the mouth-side end of a large-caliber central fire cartridge chamber closure body obliquely from below;

8th a schematic, partial side view of a firearm according to the invention, in which the projectile of a small caliber cartridge - is pushed by the small-caliber rimfire cartridge chamber lock head on the slope of the small-caliber cartridge-feeding during the charging process;

9 a schematic front view of the mouth of a small-caliber change barrel, in which the position of the small-caliber change running Pipe is shown in front of the lock in solid lines, while the position of the small-caliber change-barrel tube is shown after the locking in dashed lines;

10 a schematic perspective view obliquely from above of a large-caliber central fire cartridge magazine housing with muzzle mounted therein small caliber cartridge magazine and shaft side in or on a magazine insert large-caliber central fire cartridge magazine housing ejector provided for empty cartridge cases or not fired cartridges;

11 a schematic, perspective vertical longitudinal section through the shank-side end portion of a small caliber exchange barrel with protruding small caliber cartridge supply, obliquely from behind;

12 a plan view of a schematic horizontal longitudinal section through the shank-side end portion of a small caliber exchange barrel with protruding small caliber cartridge supply sleeve.

As can be seen in particular from the figures, the present invention relates in particular to a firearm with a chamber closure ( 18 ), which at the mouth end ( 6 ) of its chamber closure body ( 1 ) there a reversible and replaceable predictable small-caliber rimfire cartridge chamber lock head ( 2 ) having.

Based on the cross-sectional area of the chamber closure body ( 1 ) usually towers over - centered and centered - one parallel to the longitudinal axis ( 4 ) of the large caliber central fire cartridge chamber closure body ( 1 ) aligned and reversible mouth side and shaft reciprocally movable central fire cartridge firing pin ( 3 ) in the direction of the mouth ( 9 ) of a small-caliber change barrel ( 7 ) the mouth end ( 6 ) of the chamber closure body ( 1 ).

Preferably, the replaceable small bore caliber lock head ( 2 ) at its mouth-side end face ( 11 ) a cartridge tread ( 12 ) for small caliber cartridges ( 25 ) whose geometric center of gravity ( 5 ) relative to the central longitudinal axis ( 4 ) of the large caliber central fire cartridge chamber closure body ( 1 ) - and thus with respect to its central fire cartridge firing pin ( 3 ) - is offset eccentrically at a distance A.

This distance A may be, for example, in the range of 1.0 mm to 5.0 mm.

In this case, the centerfire cartridge firing pin ( 3 ) of the large caliber central fire cartridge chamber closure body ( 1 ) - to ignite a small-caliber rimfire cartridge ( 25 ) - on the edge region of a on the eccentrically offset cartridge bump ( 12 ) small bore rimfire cartridge ( 25 ).

In particularly preferred embodiments of the firearm according to the invention, the small-caliber exchange barrel ( 7 ) a small bore change-over coat ( 14 ) with a central longitudinal axis extending through the geometric center of gravity of its cross-sectional area ( 8th ) exhibit.

In general, within this small caliber change-over coat ( 14 ) a small bore change-over tube ( 15 ) with a longitudinal axis extending through the geometric center of gravity of its cross-sectional area ( 20 ) be provided.

Preferably, the longitudinal axis ( 20 ) of the small bore change-over tube ( 15 ) relative to the central longitudinal axis ( 8th ) of the small-caliber change-over coat ( 14 ) are offset eccentrically at a distance A, which is for example in the range of 1.0 mm to 5.0 mm.

In general, the eccentric offset small-caliber change-speed tube ( 15 ) about the central longitudinal axis ( 8th ) of the small-caliber change-over coat ( 14 ) rotatable or pivotable.

Preferably, between - for the purpose of locking by means of a chamber handle ( 10 ) about the central longitudinal axis ( 4 ) of the chamber closure body ( 1 ) Rotatable or swiveling - small caliber rimfire cartridge chamber lock head ( 2 ) on the one hand and the eccentrically offset, rotatable or pivotable small-caliber change-speed tube ( 15 ) On the other hand, one or more adjustment devices ( 40 ) and / or entrainment facilities ( 46 ) and / or control devices indirectly via a small-caliber cartridge feed sleeve ( 35 ) or act directly.

By this direct or indirect cooperation of the small-caliber rimfire cartridge chamber closure head ( 2 ) on the one hand and the small-caliber change-over tube ( 15 ) on the other hand, the desired alignment between the geometric center of gravity ( 5 ) of the eccentrically offset small-caliber cartridge butt ( 12 ) of the small bore rimfire cartridge chamber lock head ( 2 ) on the one hand and a shaft-side extension of the longitudinal axis ( 20 ) of the eccentrically offset small-caliber change-speed tube ( 15 On the other hand - before, during and after locking - be ensured.

As a rule, the central longitudinal axis ( 4 ) of the centerfire cartridge chamber closure Body ( 1 ) a shaft-side extension of the longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ).

Preferably, the geometric center of gravity ( 5 ) of the eccentric to the central longitudinal axis ( 4 ) and around these swiveling or swiveling small-caliber cartridges ( 12 ) of the small bore rimfire cartridge chamber lock head ( 2 ) on a shaft-side extension of the longitudinal axis ( 20 ) of the eccentric relative to the central longitudinal axis ( 8th ) of the small-caliber change-over coat ( 14 ) and around these rotatable or swiveling small-caliber change-speed tube ( 15 ) lie.

As in particular from the 5 and 6 can be seen, the passage recess ( 21 ) of the small-caliber cartridge pusher ( 12 ) for the tip of the central firing pin ( 3 ) of the chamber closure body ( 1 ) in the border area ( 13 ) of the small-caliber cartridge pusher ( 12 ) be provided.

especially the 5 and 6 show that in the 12 o'clock position of the edge area ( 13 ) of the eccentrically offset small-caliber cartridge butt ( 12 ) a passage recess ( 21 ) for the tip of the firing pin ( 3 ) of the central fire cartridge chamber closure body ( 1 ) can be provided.

According to the 4 . 5 . 6 and 8th the small bore rimfire cartridge chamber lock head ( 2 ) at its outer periphery ( 16 ) one or more institutions ( 17 ) for non-positive and / or positive as well as indirect or immediate locking with the small caliber change barrel ( 7 ) exhibit.

As a rule, the central firing pin ( 3 ) of the central fire cartridge chamber closure body ( 1 ) - through the passage recess ( 21 ) of the small-caliber cartridge butt ( 12 ) - the cartridge tread ( 12 ) at the mouth side in the range of 0.5 mm to 2.0 mm, when it is moved on the muzzle side after actuation of the trigger of the firearm.

As in particular from 5 As can be seen, the small bore rimfire cartridge chamber lock head ( 2 ) an example tubular, sleeve-shaped, rod-shaped or pin-shaped attachment device ( 43 ) in particular for the positive and / or non-positive attachment of the small-caliber rimfire cartridge chamber closure head ( 2 ) at or in the mouth-side end region ( 6 ) of the large caliber central fire cartridge chamber closure body ( 1 ) exhibit.

In general, this attachment device ( 43 ) the actual small caliber rimfire cartridge chamber lock head ( 2 ) shank side and has a diameter which a - preferably accurately fitting - introduction of the shaft-side attachment device ( 43 ) in the mouth side opening ( 44 ) of the large caliber central fire cartridge chamber closure body ( 1 ).

For fixing the small-caliber rimfire cartridge chamber lock head attachment device ( 43 ) within the mouth-side opening ( 44 ) of the large caliber central fire cartridge chamber closure body ( 1 ), the large caliber central fire cartridge chamber shutter body ( 1 ) one or more in the form of, for example, a snap-in device, latching device or clamping device formed fixing devices ( 45 ), which preferably quickly and easily and without the use of a sophisticated tool - for effortless replacement of the factory originally large caliber central fire cartridge chamber lock head against the invention used small caliber rimfire cartridge chamber lock head ( 2 ) - can be opened and closed.

In general, the inner wall of the mouth-side opening ( 44 ) of the large caliber central fire cartridge chamber closure body ( 1 ) and the attachment device ( 43 ) of the small bore rimfire cartridge chamber lock head ( 2 ) one or more mutually correspondingly formed and arranged adjusting means for the positive and / or non-positive connection with each other, for correct alignment and against rotation of the small bore rimfire cartridge chamber closure head ( 2 ) about the longitudinal axis ( 4 ) of the chamber closure ( 18 ) secured attachment.

According to 5 may be on the outside of the chamber closure body ( 1 ) a stopper-shaped stop element ( 33 ) be foreseeable.

Since the length of a small-caliber cartridge ( 25 ) is significantly shorter than the length of a large-caliber cartridge, the entire chamber closure ( 18 ) for the purpose of repeating - when using the small caliber rimfire cartridge chamber closure head ( 2 ) - not be moved so far in the direction of the shaft of the firearm, as is required for large caliber cartridges.

Preferably, the shank-side end of the stop element ( 33 ) therefore to shorten the Repetierweges the chamber closure ( 18 ) - when using small caliber cartridges ( 25 ) - on a generally extendable and extendable projection of the system housing ( 30 ) as soon as the chamber closure ( 18 ) for repeating a small-caliber cartridge ( 25 ) was moved far enough on the shank side.

In particular from the 5 and 6 It is clear that for the safe removal of fired or non-fired small caliber cartridges ( 25 ) from the cartridge warehouse ( 36 ) of the small bore change-over tube ( 15 ) - one or both sides of the eccentric small-caliber cartridge bottom ( 12 ) of the small-caliber chamber closure head ( 2 ) one or more cartridge extractor ( 19 ) can be provided.

In particularly preferred embodiments of the small-caliber rimfire cartridge chamber closure head according to the invention ( 2 ) only a sideways movable cartridge extractor ( 19 ) and an opposing, rigid counter-holder for safely removing a fired or non-fired small-caliber cartridge ( 25 ) from the cartridge warehouse ( 36 ) of a small bore change-over tube ( 15 ) together.

especially the 4 . 5 . 6 , and 7 show that in the mouth-side end region ( 6 ) of the chamber closure body ( 1 ) and / or in the mouth-side end region of the small-bore rimfire cartridge chamber closure head ( 2 ) on the magazine shaft ( 22 ), one or more exemptions ( 42 ) for the lips ( 28 ) of the magazine ( 24 ) for small caliber cartridges ( 25 ) can be provided.

Like from the 1 . 2 . 3 . 8th . 10 and 12 can be seen, the firearm according to the invention a magazine slot ( 22 ), wherein in the magazine housing ( 23 ) for large-caliber cartridges a magazine ( 24 ) for small caliber cartridges ( 25 ) can be reversibly or irreversibly integrated.

In particularly preferred embodiments of the firearm according to the invention, the lips ( 28 ) of the magazine ( 24 ) for small caliber cartridges ( 25 ) at about the same height as the lips ( 29 ) of the magazine housing ( 23 ) for large caliber cartridges.

Alternatively, the lips ( 28 ) of the magazine ( 24 ) for small caliber cartridges ( 25 ) in the range of 0.5 mm to 10.0 mm higher and higher than the lips ( 29 ) of the magazine housing ( 23 ) for large caliber cartridges.

As a rule, the mouth-side end face ( 11 ) of the small-caliber cartridge chamber lock head ( 2 ) - in the event of a locking movement of the chamber closure ( 18 ) towards the mouth of the small-caliber change barrel ( 7 ) - the uppermost small-caliber cartridge ( 25 ) of the small caliber magazine ( 24 ) to capture.

In this case, the mouth-side end face ( 11 ) of the small-caliber cartridge chamber lock head ( 2 ) the uppermost small-caliber cartridge ( 25 ) of the small caliber magazine ( 24 ) directly or indirectly into the chamber ( 36 ) of the eccentrically offset, rotatable small-caliber change-speed tube ( 15 ) push.

As the 2 . 3 . 8th . 10 and 12 In the case of the firearm according to the invention, the 23 ) for large caliber cartridges existing large caliber cartridge feeder preferably disassembled and possibly against an example plate-shaped or block-shaped, adapter-like magazine insert ( 31 ) be replaced.

In particular the 2 . 3 . 8th . 10 and 12 It can also be seen that the magazine insert ( 31 ) in its mouth-side region a slot-shaped or slit-shaped recess ( 32 ) for permanent or reversible recording of the magazine ( 24 ) for small caliber cartridges ( 25 ) and / or for the passage of the lips ( 28 ) of this magazine ( 24 ).

As in particular from 10 can be seen on the top of the magazine insert ( 31 ) a cartridge ejector ( 47 ), which during the shaft-side displacement of the chamber closure ( 18 ) causes the ejection of empty cartridge cases or not fired cartridges when repeating.

This cartridge ejector ( 47 ) can be fixed on top of the magazine insert ( 31 ) on the shank side of the magazine ( 24 ) for small caliber cartridges ( 25 ) be provided.

Alternatively, in the magazine insert ( 31 ) on the shank side of the magazine ( 24 ) for small caliber cartridges ( 25 ), for example, a longitudinal hole-shaped recess ( 48 ) be provided.

Through this recess ( 48 ) then preferably protrudes an ejector ( 47 ) in a vertical orientation upwards. In particularly preferred embodiments, the ejector ( 47 ) may be provided on a resiliently mounted rocker in the vertical direction.

In general, the ejector slides ( 47 ) in one on the underside of the chamber closure ( 18 ) provided groove.

especially the 1 . 2 . 3 . 8th . 11 and 12 show that at the shank-side end region ( 34 ) of the small-caliber change run ( 7 ) in an unlocked state - this end region ( 34 ) shaft side in the range of 3.0 mm to 20.0 mm superior small caliber cartridge feed sleeve ( 35 ) can be provided.

The advantage of this small caliber cartridge feed sleeve ( 35 ) is in particular that the compared to large-caliber cartridges significantly shorter small caliber cartridges ( 25 ) and against uncontrolled laying of Repetier-displacement of the chamber closure ( 18 ), with the help of which in the chamber ( 36 ) of the small-caliber barrel ( 15 ) are correctly positioned.

As a rule, the cartridge feed sleeve ( 35 ) - against the pressure of one or more springs ( 37 ) and in the case of locking between the closure head ( 2 ) and the small-caliber change barrel ( 7 ) - in the shank-side end region ( 34 ) of the small-caliber change barrel ( 7 ) completely reversible hineinschiebbar.

In particularly preferred embodiments of the firearm according to the invention, the cartridge feed sleeve ( 35 ) not only along the longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ), but also around this longitudinal axis ( 8th ) be at least partially or completely rotatable or pivotable.

From the 1 . 2 . 3 . 8th . 11 , and 12 It is apparent that the small-caliber cartridge supply sleeve ( 35 ) a Kleinkaliberpatronenzuführ bevel ( 38 ), which are usually in the unlocked state of the chamber closure ( 18 ) in the 6 o'clock position of the delivery tube ( 35 ) and there from the deeper shaft side edge of the small-caliber cartridge supply ( 38 ) to the level of the uppermost cartridge chamber ( 36 ) of the small bore change-over tube ( 15 ) can increase.

especially the 1 . 2 . 3 . 5 . 6 and 8th show that the front side ( 11 ) of the chamber closure head ( 2 ) one or more projection-shaped or recess-like adjusting devices ( 40 ) and the small caliber cartridge supply sleeve ( 35 ) one or more correspondingly designed and arranged adjusting devices ( 41 ).

On the shelf, these adjustment devices ( 40 ; 41 ) - at a contact between small-caliber cartridge supply sleeve ( 35 ) and chamber closure head ( 2 ) shortly before and during locking between the chamber closure head ( 2 ) and small caliber change barrel ( 7 ) - mesh.

This leads to the advantage that after the release of the lock, the small caliber cartridge feed slope ( 38 ) of the small-caliber cartridge supply tube ( 35 ) is again in the 6 o'clock position and thereby the correct sliding transport of the next small caliber cartridge ( 25 ) in the chamber ( 36 ) guaranteed.

In general, the rotatability or pivoting of the eccentrically offset small bore change-over tube ( 15 ) about the central longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ) can be brought about, for example by one or more drivers ( 46 ), which between the mouth-side end of the central longitudinal axis ( 8th ) rotatable cartridge feed sleeve ( 35 ) on the one hand and the shank end of the barrel bearing ( 27 ) on the other hand act directly or indirectly.

Alternatively, the rotatability or pivoting of the eccentrically offset small caliber change-over tube ( 15 ) about the central longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ) can be brought about, for example, by an indirect or direct engagement of the small-bore rimfire cartridge chamber closure head ( 2 ) - or a component thereof - in the shank-side end portion of the small bore tube ( 15 ).

In summary, it should be noted that in the context of the present invention a firearm with a large caliber central fire cartridge chamber closure body ( 1 ), which in the factory basic version shoots large caliber centerfire cartridges and, due to a particularly quick, simple and effortless retrofitting by a) replacement of the factory originally large caliber central fire cartridge chamber lock head against a small bore rimfire cartridge chamber lock head ( 2 ) with respect to its longitudinal axis ( 4 ) eccentrically offset cartridge tread ( 12 ) b) Replacing the factory originally existing magazine housing ( 23 ) for large-caliber cartridges against a magazine housing ( 23 ) for large caliber cartridges with integrated magazine ( 24 ) for small caliber cartridges ( 25 ) and c) replacement of the factory originally large caliber barrel against a small caliber change barrel ( 7 ) along the longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ) slidable and with about this longitudinal axis ( 8th ) swiveling small caliber cartridge supply sleeve ( 35 ) and small bore tube ( 15 ), for firing small bore rimfire cartridges ( 25 ) suitable is.

Thus, for the first time one and the same firearm for the shooting of large-caliber central fire cartridges as well as small-caliber rimfire cartridges ( 25 ) suitable.

Thus, for example, on a hunting trip the entrainment of only a single suitcase with a firearm shaft and a system housing ( 30 ), a magazine housing ( 23 ) for large-caliber cartridges, a magazine housing ( 23 ) for large caliber cartridges with integrated magazine ( 24 ) for small caliber cartridges ( 25 ), with a large caliber central fire cartridge lock chamber body ( 1 ), with a small bore rimfire cartridge chamber lock head ( 2 ), with a large caliber central fire cartridge cap head, with two or three alternating barrels [at least one small caliber change barrel ( 7 )] and a rifle scope with two or three barrel-specific settings sufficient to shoot both large caliber centerfire cartridges and small bore rimfire cartridges.

Since the acquisition of a separate small-caliber rimfire rifle in the case of the presence of the firearm invention - for a low-cost small caliber training shooting or to have a small-caliber Schonzeitbüchse at hand - for the first time no longer required, the firearm invention affects the cost of firearms in an extremely advantageous manner.

In the case of the firearm according to the invention, the bureaucracy effort is halved, since it is no longer two, but only a single possession card to acquire and pay.

It is also advantageous in the case of the firearm according to the invention that their space requirement in a usually narrow gun cabinet is only half as large as that mass that emanates from two rifles (a large-caliber rifle and a small-caliber rifle).

LIST OF REFERENCE NUMBERS

1

Large-caliber centerfire ammunition chamber closure body

2

Small caliber rimfire cartridge chamber closure head

3

Large-caliber and small-caliber firing pin

4

Longitudinal axis of the large caliber central fire cartridge chamber closure body 1

5

Geometric, centered center of gravity of the small-caliber cartridge butt 12

6

Mouth-side end of chamber closure body 1

7

Small caliber change barrel

8th

Longitudinal axis of the jacket 14 of the small-caliber change barrel 7

9

Mouth of the small caliber change barrel 7

10

bolt handle

11

Mouth-side end face of the chamber closure head 2

12

eccentric small caliber cartridge bullet at the front 11 of the small-caliber chamber lock head 2

13

Edge area of the cartridge butt 12 of the small-caliber chamber lock head 2

14

Coat of the small-caliber change barrel 7

15

rotatable small bore tube in a small bore barrel barrel 14

16

outer circumference of the small caliber chamber lock head 2

17

Device for locking with small caliber change barrel 7 ; on the outside 16 of small caliber chamber lock head 2

18

bolt action

19

Extractor of the small-caliber cartridge chamber lock head 2

20

Longitudinal axis of the rotatable, eccentric to the central longitudinal axis 8th of the small-caliber change-over coat 14 offset, small bore barrel tube 15

21

Recess at 12 o'clock position of the small caliber cartridge butt 12 for tip of the large caliber central fire cartridge firing pin 3

22

Magazine shaft

23

Magazine housing for large caliber cartridges

24

Magazine for small caliber cartridges 25

25

Small caliber rimfire cartridge

26

Storage area between small caliber barrel coat 14 and the small-bore race camp 27

27

Barrel bearing, in the barrel tube 15 eccentric to the central longitudinal axis 8th of the small-caliber change-over coat 14 is appropriate

28

Lips of the Small Caliber Magazine 24

29

Lips of the magazine housing 23 for large caliber cartridges

30

system Cabinets

31

Magazine insert

32

Slot-shaped recess of the magazine insert 31 for small caliber magazine 24

33

Stopper-shaped stop element on the outside of the chamber closure ( 18 ) to shorten the Repetierweges

34

shank end of the small-caliber exchange barrel 7

35

Sliding and rotating small caliber cartridge supply sleeve of the small-caliber exchange barrel 7

36

Cartridge bearing of the small-caliber change-over tube 15

37

Spring of the feed sleeve 35

38

Small Caliber Cartridge Feeder Slant of Small Scale Cartridge Feeding Sleeve 35

39

40

Adjustment device on the small caliber chamber lock head 2

41

to 40 Corresponding adjusting device to small caliber cartridge supply 35

42

Exemption on the underside of the chamber closure 18 and the small caliber chamber occlusion head 2 , for lips 28 of the small-caliber magazine 24

43

tubular attachment means of the closure head 2 on the chamber closure body 1

44

Mouth-side opening of the chamber closure body 1

45

Fixation device of the chamber closure body 1 for fixing the attachment device 43 of the small-caliber chamber lock head 2

46

Carrier, between cartridge feed sleeve 35 and barrel bearings 27 acting

47

Ejector for empty cartridge cases or non-fired cartridges 25

48

shaft-side recess of the magazine insert 31 for ejector 47

α

Swing angle of the chamber handle 10 - And thus the small-caliber cartridge butt 12 of the small-caliber chamber lock head 2 - and the small-bore change-over tube 15 during locking

 A

Distance between the longitudinal axis 20 of the barrel tube 15 or the focus 5 of the cartridge butt 12 on the one hand and the longitudinal axis 8th of the running coat 14 or the firing pin 3 and the longitudinal axis 4 the chamber closure body 1 on the other hand

Claims (11)

Firearm with a chamber closure ( 18 ), which at the mouth end ( 6 ) of its chamber closure body ( 1 ) there a reversible and replaceable predictable small-caliber rimfire cartridge chamber lock head ( 2 ), wherein - based on the cross-sectional area of the chamber closure body ( 1 ) - centered and centered parallel to the longitudinal axis ( 4 ) of the large caliber central fire cartridge chamber closure body ( 1 ) aligned and reversible mouth side and shaft reciprocally movable central fire cartridge firing pin ( 3 ) in the direction of the mouth ( 9 ) of a small-caliber change barrel ( 7 ) the mouth end ( 6 ) of the chamber closure body ( 1 ), characterized in that the exchangeable small-caliber chamber closure head ( 2 ) at its mouth-side end face ( 11 ) a cartridge tread ( 12 ) for small caliber cartridges ( 25 ) whose geometric center of gravity ( 5 ) relative to the central longitudinal axis ( 4 ) of the large caliber central fire cartridge chamber closure body ( 1 ) - and thus with respect to its central fire cartridge firing pin ( 3 ) Is offset eccentrically at a distance A which is in the range of 1.0 mm to 5.0 mm, so that the central fire cartridge firing pin ( 3 ) of the large caliber central fire cartridge chamber closure body ( 1 ) - to ignite a small-caliber rimfire cartridge ( 25 ) - on the edge region of a on the eccentrically offset cartridge bump ( 12 ) small bore rimfire cartridge ( 25 ) and that the small caliber change barrel ( 7 ) a small bore change-over coat ( 14 ) with a central longitudinal axis extending through the geometric center of gravity of its cross-sectional area ( 8th ) and within this small caliber change-over coat ( 14 ) a small bore change-over tube ( 15 ) with a longitudinal axis extending through the geometric center of gravity of its cross-sectional area ( 20 ), wherein the longitudinal axis ( 20 ) of the small bore change-over tube ( 15 ) relative to the central longitudinal axis ( 8th ) of Small-caliber change-over coat ( 14 ) is offset eccentrically at a distance A which is in the range of 1.0 mm to 5.0 mm, wherein the eccentrically offset small-caliber change-speed tube ( 15 ) about the central longitudinal axis ( 8th ) of the small-caliber change-over coat ( 14 ) is rotatable or pivotable, wherein between the - for the purpose of locking by means of a chamber handle ( 10 ) about the central longitudinal axis ( 4 ) of the chamber closure body ( 1 ) Rotatable or swiveling - small caliber rimfire cartridge chamber lock head ( 2 ) on the one hand and the eccentrically offset, rotatable or pivotable small-caliber change-speed tube ( 15 ) On the other hand, one or more adjustment devices ( 40 ) and / or entrainment facilities ( 46 ) and / or control devices indirectly via a small-caliber cartridge feed sleeve ( 35 ) or act directly - to ensure an alignment between the geometric center of gravity ( 5 ) of the eccentrically offset small-caliber cartridge butt ( 12 ) of the small bore rimfire cartridge chamber lock head ( 2 ) on the one hand and a shaft-side extension of the longitudinal axis ( 20 ) of the eccentrically offset small-caliber change-speed tube ( 15 On the other hand, before, during and after locking. Firearm according to claim 1, characterized in that the central longitudinal axis ( 4 ) of the central fire cartridge chamber closure body ( 1 ) a shaft-side extension of the longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ) and the geometric center of gravity ( 5 ) of the eccentric to the central longitudinal axis ( 4 ) and around these swiveling or swiveling small-caliber cartridges ( 12 ) of the small bore rimfire cartridge chamber lock head ( 2 ) on a shaft-side extension of the longitudinal axis ( 20 ) of the eccentric relative to the central longitudinal axis ( 8th ) of the small-caliber change-over coat ( 14 ) and around these rotatable or swiveling small-caliber change-speed tube ( 15 ) lies. Firearm according to one of the preceding claims, characterized in that the passage recess ( 21 ) of the small-caliber cartridge pusher ( 12 ) for the tip of the firing pin ( 3 ) of the chamber closure body ( 1 ) in the border area ( 13 ) of the small-caliber cartridge pusher ( 12 ) is provided. Firearm according to claim 3, characterized in that in the 12 o'clock position of the edge region ( 13 ) of the eccentrically offset small-caliber cartridge butt ( 12 ) a passage recess ( 21 ) for the tip of the firing pin ( 3 ) of the central fire cartridge chamber closure body ( 1 ) is provided. Firearm according to one of the preceding claims, characterized in that the small-bore rimfire cartridge chamber closure head ( 2 ) at its outer periphery ( 16 ) one or more institutions ( 17 ) for non-positive and / or positive as well as indirect or immediate locking with the small caliber change barrel ( 7 ) having. Firearm according to one of the preceding claims, characterized in that the central firing pin ( 3 ) of the central fire cartridge chamber closure body ( 1 ) - through the passage recess ( 21 ) of the small-caliber cartridge butt ( 12 ) - the cartridge tread ( 12 ) surmounted at the mouth side in the range of 0.5 mm to 2.0 mm, when it is displaced on the outlet side after actuation of the trigger of the firearm. Firearm according to one of the preceding claims, characterized in that in the mouth-side end region ( 6 ) of the chamber closure body ( 1 ) and / or in the mouth-side end region of the small-bore rimfire cartridge chamber closure head ( 2 ) on the magazine shaft ( 22 ), an exemption ( 42 ) for the lips ( 28 ) of the magazine ( 24 ) for small caliber cartridges ( 25 ) is provided. Firearm according to one of the preceding claims, characterized in that on the shank-side end region ( 34 ) of the small-caliber change run ( 7 ) a - in unlocked state - this end region ( 34 ) shaft side in the range of 3.0 mm to 20.0 mm superior small caliber cartridge feed sleeve ( 35 ) is provided in comparison to large-caliber cartridges - short small-caliber cartridges ( 25 ) and against uncontrolled laying of Repetier-displacement of the chamber closure ( 18 ), in the chamber ( 36 ) of the small-caliber barrel ( 15 ), wherein the cartridge feed sleeve ( 35 ) against the pressure of one or more springs ( 37 ) - in the case of locking between the closure head ( 2 ) and the small-caliber change barrel ( 7 ) - in the shank-side end region ( 34 ) of the small-caliber change barrel ( 7 ) is completely reversible hineinschiebbar and about the longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ) is at least partially rotatable or pivotable. Firearm according to Claim 8, characterized in that the small-caliber cartridge supply sleeve ( 35 ) a Kleinkaliberpatronenzuführ bevel ( 38 ), which in the unlocked state of the chamber closure ( 18 ) in the 6 o'clock position of the delivery tube ( 35 ) and of the deeper shaft-side edge of the small-caliber cartridge supply sleeve ( 38 ) to the level of the uppermost cartridge chamber ( 36 ) of the small bore change-over tube ( 15 ) increases. Firearm according to one of claims 8 or 9, characterized in that the end face ( 11 ) of the chamber closure head ( 2 ) one or more projection-shaped or recess-like adjusting devices ( 40 ) and the small caliber cartridge supply sleeve ( 35 ) one or more correspondingly designed and arranged adjusting devices ( 41 ), which in a contact between small-caliber cartridge supply ( 35 ) and chamber closure head ( 2 ) shortly before and during locking between the chamber closure head ( 2 ) and small caliber change barrel ( 7 ) engage each other, so that after releasing the lock, the small caliber cartridge feed slope ( 38 ) of the small-caliber cartridge supply tube ( 35 ) is again in the 6 o'clock position and thereby the correct sliding transport of the next small caliber cartridge ( 25 ) in the chamber ( 36 ) guaranteed. Firearm according to one of the preceding claims, characterized in that the rotatability or pivoting of the eccentrically offset small-diameter change-over tube ( 15 ) about the central longitudinal axis ( 8th ) of the jacket ( 14 ) of the small-caliber change barrel ( 7 ) can be brought either by one or more drivers ( 46 ), which between the mouth-side end of the central longitudinal axis ( 8th ) rotatable cartridge feed sleeve ( 35 ) on the one hand and the shank end of the barrel bearing ( 27 ) on the other hand act indirectly or directly or by a direct engagement of the small-caliber rimfire cartridge chamber closure head ( 2 ) - or a component thereof - in the shank-side end portion of the small bore tube ( 15 ).

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