EP2363678B1 - Repeater with replaceable barrel-bolt group - Google Patents

Description

The invention relates to a repeating rifle with a housing, a detachably connected to the housing barrel and guided in the housing and lockable with the barrel closure. The closure is in any case a longitudinally guided in the housing body, with different locking systems in question; those with twisting of the closure and others. In the former, the closure is locked either by moving and twisting the chamber handle or by moving the chamber handle and a link guide. The present invention is applicable to both modes of operation. The invention is occasionally suitable for closures without rotation.

As examples of weapons with locking by twisting the shutter are the DE 103 32 962 B3 and the DE 196 02 430 A1 called. In the former, the chamber handle acts directly on the closure, in the second, a closure carrier with a spiral guide.

From the patent AT 400 269 is a hunting rifle with replaceable barrel known in the different runs and correspondingly different closures are used. However, to change the weapon must be largely disassembled, which is laborious and further complicated by the attachment of the barrel.

The DE 28 34 332 C2 concerns an automatic weapon with a replaceable barrel. The gas tap on the barrel is designed in such a way that the barrel is first rotated to change and then extended axially. The closure is provided in the housing.

The DE 10 2005 036 251 B1 concerns a gas-charged rapid-fire rifle with a replaceable barrel. On the barrel, a locking sleeve is fixedly mounted, which secures the locking head with its locking lugs with radially inwardly facing locking lugs.

The US 3,849,925 A1 describes a mechanism of a replaceable barrel, with which also the closure head can be changed.

It is an object of the invention to design a repeating weapon so that the change of barrel and closure with a minimum of handles and preferably even simultaneously possible and a space-saving and reliable connection of the closure head and closure body is possible.

The solution of this object is achieved with a repeating rifle according to appended claim 1. The closure of the repeating rifle according to the invention is divided into a lockable with the barrel closure head with corresponding locking parts and guided in the housing closure body. The closure head and closure body are connected to each other so that they are separable from each other when the closure body is in the locked position, so that the barrel can be pulled forward out of the housing at the same time as the closure head locked therein. In this case, a rear part of the closure head inserted in a coaxial bore of the closure body and is held there by engaging in a circumferential groove coupling pieces (in particular balls). When pulling out the closure head must These are pushed radially outwards, which is possible only in a certain position (position and possibly angular position) of the closure body. Only in the locked position namely allow this wells in the leadership of the closure body.

Depending on the design of the closure, the closure body can be guided either in the housing or in a closure carrier. In the former case, the shutter is locked by sliding and twisting the chamber handle, and the recesses are arranged in the housing. In the second case is locked by moving the chamber handle and a slotted guide in the lock carrier, the recesses are mounted in the lock carrier. In the second case one speaks of a straight-pull fastener. In such, in a particularly beautiful and therefore preferred embodiment, the closure body in the housing is guided in a straight line in the longitudinal direction. The fact that the control bolt firmly connected to the closure body is guided both on the backdrop in the closure carrier and in the housing, a positive guidance of the closure head is achieved in a simple manner until complete locking. An attachment at the rear of the closure body, having a longitudinal groove of particular position and length into which engages a thumb of the closure carrier, and which forms a stop for a head at the rear end of the firing pin ensures that only at full locked closure a shot can be delivered.

The detachable connection of the barrel with the housing can be made in various ways within the scope of the invention. In a preferred embodiment, the locking bush fits into a cylindrical bore of the housing and is by means of fixed a rotatable eccentric. The eccentric interacts with a mating surface with the windshaft to the running axis generator. Thus, the barrel can be detached from the housing with a handle and pulled out of the housing together with the closure head with a further handle.

In a development of the invention, a translation may be used to displace the closure carrier instead of a chamber stem.

Fig. 1

einen teilweisen Längsschnitt durch ein erfindungsgemäßes Repetiergewehr, von rechts gesehen;

Fig. 2

einen weiteren Längsschnitt durch das Repetiergewehr, aber von links gesehen und vergrößert;

Fig. 3

einen Querschnitt durch das Repetiergewehr entlang der Schnittlinie III-III in Fig. 2;

Fig. 4

eine Verschlusseinheit des Repetiergewehrs in einer ersten ganz geöffneten Stellung;

Fig. 5

die Verschlusseinheit gemäß Fig. 4, um 90° gedreht;

Fig. 6

die Verschlusseinheit in einer zweiten, verriegelten Stellung;

Fig. 7

einen Querschnitt durch die Verschlusseinheit entlang der Schnittlinie VII-VII in Fig. 6;

Fig. 8

die Verschlusseinheit in einer dritten, geöffneten Stellung;

Fig. 9

ein teilweiser Längsschnitt des Repetiergewehrs in einer vierten, zerlegten Stellung.

Further details and advantages of the invention will become apparent from the following description of a preferred embodiment, with reference to the drawing. Show it:

Fig. 1

a partial longitudinal section through an inventive repeating rifle, seen from the right;

Fig. 2

another longitudinal section through the repeating rifle, but seen from the left and enlarged;

Fig. 3

a cross section through the repeating rifle along the section line III-III in Fig. 2 ;

Fig. 4

a locking unit of the repeating rifle in a first fully open position;

Fig. 5

the closure unit according to Fig. 4 , turned by 90 degrees;

Fig. 6

the closure unit in a second, locked position;

Fig. 7

a cross section through the closure unit along the section line VII-VII in Fig. 6 ;

Fig. 8

the closure unit in a third, open position;

Fig. 9

a partial longitudinal section of the repeating rifle in a fourth, disassembled position.

In Fig. 1 a repeating rifle with a housing 1, a barrel 2 and a closure 3 is shown in a longitudinal sectional view. The barrel 2 is connected by means of a thread 5 or otherwise as with a locking bushing 4. This surrounds the one cartridge chamber 9 containing the rear end of the barrel 2 and protrudes to the rear beyond. The locking sleeve 4 is seated in a cylindrical bore 8 considerable length of the housing 1 and is held therein by means of an engaging from the outside in the locking sleeve 4 eccentric 6, which is rotatable by means of a hand lever 7. The axis of the eccentric 6 is skewed to the running axis and the locking bush 4 has a mating surface 33 with the windshaft to the running axis generatrix, which receives the eccentric 6. In the position shown, the barrel 2 is fixedly connected to the housing 1. Twisted at a right angle, the eccentric 6 releases the barrel 2, so that it can be pulled forwards out of the housing 1.

In Fig. 2 and 3 The essential parts are shown enlarged in sectional views and thus better recognizable. The locking sleeve 4 forms at its located behind the barrel 1 part inside first locking parts 10, which here are several rows of circumferentially distributed, slightly rising segments (called warts), interrupted by longitudinal passages 11 (spaces) for second locking parts 30 on the closure 3. The housing has on its upper inner side a longitudinal groove 12 and a transverse groove 13. Furthermore, a cocking slide 14 in the longitudinal direction is displaceable in the housing. It could be firmly connected to the shutter 3. In the embodiment shown, it carries a pinion 15 which meshes with a top of a first rack 16 attached to a portion of the shutter 3 and at the bottom with a second rack 38 only indicated housing-fixed. For a translation is created quickly or shortened the way of the cocking slide 14.

The closure 3 consists of a closure carrier 17, a closure head 18, a closure body 19, an attachment 21 and a cover 24. The closure carrier 17 is here fixedly connected to the first rack 16 and by means of guide rails 40 (FIG. Fig. 3 ) guided on the housing 1 in the longitudinal direction. The closure head 18 forms at its front end the second locking parts 30, which fit into the intermediate spaces 11 between the first locking parts 10 of the locking sleeve 4. A rear part 31 of the closure head 18 is connected to the closure body 19 in a manner to be described below. The closure body 19 is a stepped cylinder and slidably guided in the closure carrier 17 and rotatable. For this purpose, a control bolt 20 protrudes radially outward into a connecting link 41 of the closure carrier 17 and into the longitudinal groove 12 or into the transverse groove 13 of the housing 1 Fig. 3 the control pin 20 is shown in the longitudinal groove 12, and as 20 * in the transverse groove 13. The gate 41 of the closure carrier 17 consists of a spiral-shaped part 41 'and a rear-adjoining short longitudinal part 41 "( Fig. 5 ).

The attachment 21 is guided on a rear portion 27 of smaller diameter of the closure body 19 and rotatably, but slidably connected in the longitudinal direction of the closure support 17. For this purpose, he has a longitudinal groove 23 of certain position and length, in which engages a fastened to the lock carrier 17 thumb 22. The attachment 21 forms a rear stop 26, which ensures that the firing pin 25 can only be knocked off when the shutter 3 is locked.

In Fig. 4 and 5 the shutter 3 without housing 1 can be seen; and above all, the connection between the closure head 18 and the closure body 19. To transmit a torque between the closure body 19 and the closure head 18, both parts have longitudinally directed flat dome surfaces 32, which are only indicated. They allow a displacement of the two parts in the axial direction. The rear part 31 of the closure head 18 is inserted in a central bore 29 of the closure body 19 and has a circumferential groove 34 near its end. The closure body 19 has a number (preferably three) circumferentially distributed radial bores 36 (FIG. Fig. 5 ). These and the circumferential groove 34 together offer just enough space for each one dome body 35, preferably a ball. Because the balls 35 can not escape to the outside, they form a detachable longitudinally positive connection between the closure head 18 and the closure body 19th

To release the connection of the closure carrier has on its inner cylindrical guide surface 28 recesses 42 which connect in a certain position of the closure body 19 to the radial bores 36 and extend to the outside, so that the balls 35 when pulling the closure head 18 from the closure body 19 in this pushed can be. This position corresponds both in the longitudinal direction and in the angle of rotation of the locked closure. Only in this position, the two closure parts can be separated from each other.

In the following, the operation of the device according to the invention will be described. It is from Fig. 4 and Fig. 5 gone out in which the shutter is open and shown in its rearmost position. This position was achieved by retracting the closure support 17. Therefore, the rear abutment surface 45 of the lock carrier 17 bears against the abutment surface 46 of the attachment 21, and the abutment 26 of the attachment 21 has pulled the firing pin 25 back. The control pin 20 is in the longitudinal groove 12 ( Fig. 2 ) of the housing 1 and passes through the helical first part 41 'of the link 41 of the closure carrier 17 in its foremost section. Locking head 18 and closure body 19 are interconnected by the balls 35, because the balls 35 can not be pushed outward; the recesses 42 provided in the closure support 17 are much further back in this position.

Fig. 6 and 7 show the closure 3 in the locked position. In this he gets it by the fact that the closure support 17, here by acting on the rack 16, first straight forward (along the guide rails 40 in the housing 1) is pushed forward. In this case, the control pin 20 is first in the longitudinal groove 12 ( Fig. 2 ), so that also the closure head 18 and the closure body 19 move in a straight line to its foremost position, in which the closure head 18 dips into the locking sleeve 4. In this intermediate position, the control bolt is still at the very front in the first part 41 '. the backdrop 41, because until then it was guided in the longitudinal groove 12 in the housing.

Once the control pin 20, the transverse groove 13 ( Fig. 3 has reached, with further forward sliding of the closure support 17, the first part 41 'of the link 41 twisted the closure head 18 and the closure body 19. Thus, the closure in the in Fig. 6 shown locked position.

In this locked position, the depressions 42 of the closure carrier 17 are brought to coincide with the radial bores 36, in which the balls 35 are located. This has the consequence that the balls are pushed into the recesses 42 and the closure head 18 can be pulled out of the closure body 19. If the running group consisting of the barrel 2 and the locking sleeve 4 is pulled forward out of the housing (after turning the eccentric 6) after releasing its connection with the housing 1, then the locking head 18 locked with the locking sleeve 4 is pulled out with it. Is in Fig. 9 represented and indicated by the arrow 48. In this way, different barrels (of different calibers) with the matching cap heads can be kept ready and used together in the rifle.

Based on Fig. 8 is still the unlocking and opening of the shutter described, although while the Fig. 6 expire in reverse order. If the lock carrier 17 is pushed backwards, the control bolt 20 is first rotated by the first part 41 'of the groove 41 and the lock is unlocked in this way. That's the one in Fig. 8 shown position. The closure support 17 pulls the closure (18, 19) in a straight line to the rear, because of the control bolt 20 in the longitudinal groove 12 (FIG. Fig. 2 ) is guided. He also pushes the attachment 21 by touching the stop surfaces 45, 46 to the rear and the stop 26 pulls the firing pin 25 back. Because of the displacement of the closure carrier 17 with its recesses 42 with respect to the closure body 19, the balls 35 again form a positive connection.

Described was only one embodiment of the invention, can be deviated from the many. What is essential is the separation of the closure into two parts, one of which can be removed from the housing with the barrel locked. The locking must not be done by twisting a closure part, and if the locking is done by twisting, this rotation does not have to be enforced by a link in the bolt carrier, it can also be done directly by the bolt handle.

LIST OF REFERENCE NUMBERS

1

casing

2

run

3

Closure, total

4

locking bush

5

Thread (fixed connection)

6

eccentric

7

hand lever

8th

housing bore

9

cartridge chamber

10

first locking parts (warts)

11

gap

12

Longitudinal groove in the housing

13

Transverse groove in the housing

14

clamping slide

15

pinion

16

first rack

17

Bolt carrier

18

bolt head

19

closure body

20

control bolt

21

essay

22

thumb

23

Groove in a specific position

24

cover

25

firing pin

26

Stop for firing pin

27

Rear part of the closure body

28

Cylindrical guide surface of the lock carrier, inside

29

Central bore in the closure body for the buttock

30

second locking parts (warts)

31

rump

32

Dome surfaces, along

33

Mating surface in the locking bush for the eccentric

34

circumferential groove

35

Ball (dome body)

36

Radial holes in the closure body

37

-

38

second rack

39

-

40

Guide bar from the lock carrier to the housing

41

Backing for control bolt (41 ', 41 ")

42

deepening

43

Head on the firing pin

44

-

45

Rear stop surface on the lock carrier

46

Stop surface on the attachment

47

-

48

Breaking-arrow

Claims (7)

1. A repeating rifle with a housing (1), a barrel (2) that is detachably connected with the latter, and a breech mechanism (3) that is guided in the housing (1) and can be locked with the barrel (2), wherein at its rear end the barrel (2) is securely connected with a locking bushing (4), the inner wall of which forms a locking zone with first locking parts (10), and the outer wall of which sits in the housing (1), and can be located in position; wherein the breech mechanism (3) is divided into a breech head (18) that can be locked with the barrel (2) with second locking parts (30), and a breech body (19) guided in the housing (1); wherein breech head (18) and breech body (19) are connected with one another such that they can be separated from one another if the breech body (19) is located in the locked position; wherein the breech head (18) has a cylindrical rear section (31), which is inserted in a central bore (29) of the breech body (19); wherein the rear section (31) has a peripheral groove (34) and the breech body (19) possesses a number of radial holes (36), which, together with the peripheral groove (34), accommodate in each case a coupling body (35), and wherein the guide of the breech body (19) has recesses (42), which are only matched with the radial holes (36) if the breech body (19) is located in the locked position, so that when the breech head (18) is pulled out of the breech body (19) the coupling body (35) can be pushed into the recesses (42); so that when its location with the therein locked breech head (18) is released the barrel (2) can be pulled out forward out of the housing (1).
2. The repeating rifle in accordance with claim 1, characterised in that the first locking parts of the breech mechanism (3) are nipples (10); for purposes of locking the breech head (18) these are rotated with respect to the locking bushing (4); in that the breech body (19) is guided in the housing (1); and in that the recesses (42) in the housing (1) are arranged in the position corresponding to the locked breech mechanism.
3. The repeating rifle in accordance with claim 1, characterised in that the locking parts of the breech mechanism (3) are nipples (10); for purposes of locking the breech head (18) these are rotated with respect to the locking bushing (4); in that the breech body (19) is guided in a breech carrier (17); and in that the recesses (42) in the breech carrier (17) are arranged in the position corresponding to the locked breech mechanism.
4. The repeating rifle in accordance with claim 2 or 3, characterised in that for purposes of a separable torque-proof connection between breech head (18) and breech body (19), coupling surfaces (32) running in the longitudinal direction are provided on both.
5. The repeating rifle in accordance with claim 3, characterised in that the breech carrier (17) is guided linearly in the housing (1) in the longitudinal direction, the breech body (19) has a control bolt (20) extending radially, which interacts with a motion link (41) in the breech carrier (17) effecting the rotation of the breech head (18), and engages in a guide groove in the housing (1), which has a first section (12) aligned longitudinally, and a second section (13) running in the peripheral direction.
6. The repeating rifle in accordance with claim 3, characterised in that a firing pin (25) passes through the breech head (18) and the breech body (19) in the longitudinal direction; in that a fixture (21) is guided on the section of the breech body (19) facing away from the breech head (18); this has a groove (23) running in the longitudinal direction, in which a cog (22) of the breech carrier (17) engages, and which forms a stop (26) for a head (43) at the rear end of the firing pin (25), so that the firing pin (25) can only be struck when the breech mechanism is fully locked.
7. The repeating rifle in accordance with claim 3, characterised in that the breech carrier (17) is connected with a longitudinally aligned toothed rack (16), in which a pinion (15) that can be rotated on a cocking slide (14) engages; the pinion in turn meshes with a second toothed rack that is fixed to the housing.

Images