EP1955003A1

EP1955003A1 - Weapon with an interchangeable barrel

Info

Publication number: EP1955003A1
Application number: EP06829164A
Authority: EP
Inventors: Jürgen GABLOWSKI
Original assignee: Heckler und Koch GmbH
Current assignee: Heckler und Koch GmbH
Priority date: 2005-11-30
Filing date: 2006-11-28
Publication date: 2008-08-13
Anticipated expiration: 2026-11-28
Also published as: DE102005057130B4; ATE441079T1; KR101054973B1; EP1955003B1; ES2331261T3; PT1955003E; KR20080069663A; ZA200804618B; CA2630498C; DE102005057130A1; DK1955003T3; CA2630498A1; WO2007062807A1; DE502006004694D1; US20090320346A1; US7707760B2

Abstract

The gun has a removable tube (4), a tube locking unit (22) to lock the removable tube in the gun. A safety mechanism prevents firing of the gun during off state of the mechanism and enables firing of the gun during release state of the mechanism. The safety mechanism cooperates with the tube locking unit in such a manner that the safety mechanism acquires its release position only by the removable tube that is locked at the tube locking unit.

Description

Weapon with exchangeable pipe

The invention relates to a weapon with an exchangeable pipe, a pipe locking device that locks the exchange tube in the weapon, a securing mechanism that a blocking state in which he prevents a firing of the weapon, and a release state in which he allows the firing of the gun can, wherein the securing mechanism cooperates with the pipe locking device so that it can assume its release state only when locked in the pipe locking device exchange tube.

Such a generic weapon is known from DE 3541 312 C2. There, a locking mechanism is described which cooperates with a firing pin safety device such that when an unlocked barrel of the firing pin is blocked and can not reach a cartridge bottom when firing a shot.

Furthermore, DE 30 14 541 C2 shows a lever lock for locking and unlocking the barrel of portable automatic firearms, which blocks the weapon lock when the barrel is unlocked.

Listed below location designations, such as "front", "rear", "side", etc., refer to a weapon in normal, horizontal firing position, with the firing direction facing forward.

Weapons are often equipped with exchangeable pipes for the following reasons. Upon ignition of a cartridge, a projectile, when propelled by the traction and fields of a pipe, causes vibrations and vibrations in the pipe which are cushioned by vibration of the pipe. In addition, at each firing the frictional energy delivery of the Projectile in the pipe and the gas pressure of the burning off

Propellant charge of the fired cartridge to a pipe heating up to overheating in continuous fire or a quick firing. Such tube overheating can cause tube breakers, i. Within the ignited cartridge such a high gas pressure arises that the cartridge shell tears apart and therefore the front part of the cartridge case blocks the cartridge chamber. In addition, a continuous firing, especially when shooting large caliber ammunition, cause such a strong pipe warming that the precision of the shot and the Treffpunktläge are greatly deteriorated by the elongation behavior of the tube. This problem arises in particular with machine guns and grenade launchers. Therefore, the pipe is made interchangeable so that it can be exchanged with a replacement replacement pipe depending on the number of shots fired. For this purpose, the rear end of the exchangeable tube is usually screwed or otherwise connected to a receiving block in such exchangeable tube weapons.

The rear end of the exchangeable tube comprises the chamber in which the cartridges are loaded. The wall of the cartridge chamber is stronger than the exchange tube itself, since the occurring here in the ignition of cartridges gas pressure is highest. This gas pressure can only seal a cartridge in the system if it is in the correct position in the chamber when it is ignited. The cartridge chamber forms a negative impression of the corresponding cartridge case, which usually consists of a relatively soft and elastic copper-brass alloy. After ignition, the cartridge case then usually fits exactly to the walls of the cartridge chamber, thus sealing the resulting gas pressure in the removable tube.

However, if the exchange tube is not completely taken up in the receiving block and screwed or locked due to operating errors, the cartridge case can not fit properly in the chamber and therefore not the Seal gas pressure. Under certain circumstances then reaches the

Do not hit the firing pin, which will prevent firing and cause jamming. However, when ignited, the unsealed gas pressure can cause run blasts that can seriously injure the operator.

There are a variety of locking mechanisms coupled to the trigger mechanism, the locking system and / or the like which are intended to prevent unconscious and inadvertent firing of a cartridge. These known securing mechanisms have the disadvantage that in the case of exchangeable tube weapons a shot can also be triggered if the exchangeable tube is not completely locked in the receiving block. This represents a considerable hazard to the operator.

The invention is therefore based on the object to increase the reliability of a weapon with a removable tube.

This object is achieved by the subject matter of independent claim 1.

The weapon basically includes all types of weapons with an exchangeable tube, from the handgun to a mount fixedly mounted weapons, such as automatic, semi-automatic, small-caliber, large-caliber weapons, such as machine guns, submachine guns, light machine guns or grenade launchers.

In general, the exchange tube can be locked in any way on the weapon, such as a bayonet lock, a thread, a locking latch. Preferably, the tube locking device comprises a Rohrhaitelement, particularly preferably in the form of a bolt, which is brought to lock the removable tube in a locking position. The use of such a pipe holding element has the Advantage that it can be quickly introduced and quickly removed to change the exchange tube again. As an alternative to a bolt, the use of a screw or a pin is also possible here. However, the use of a screw has the disadvantage that additional tools, such as a screwdriver is needed. In addition, while the locking mechanism comprises a locking member rotatably connected to the feeder cover. The locking member cooperates with the tube retaining member such that the shuttle cover can not be closed when the tube retaining member is not in the locking position.

Further, the locking device of the weapon preferably comprises a receiving block for receiving the exchangeable tube and a sensor element, which preferably cooperates with the exchangeable tube and the tube holding member such that the tube holding member can be brought into the locking position only when fully accommodated in the receiving block exchange tube. This prevents that the exchange tube is indeed locked to the weapon, but not in the predetermined stop on the weapon, where it seals the gas pressure generated by the fired cartridge.

For this purpose, the sensor element is preferably biased by a sensor element spring from a first to a second sensor element positions and interacts with a fixedly connected to the removable tube nose such that it is during insertion of the removable tube in the receiving block up to the stop of the nose against the spring force of the sensor element spring is moved to the first sensor element position. As an alternative, the pipe holding element as such can already ensure that it can lock the exchangeable pipe only in the position completely accommodated in the receiving block.

The sensor element preferably has a recess which is arranged such that it only in the first Sensor element position a passage for the

Pipe holding element allows in its locking position.

Preferably, the tube holding member cooperates with the feeder cover so as to be locked in the locking position when the feeder lid is closed. This provides an additional safeguard against unintentional removal or falling out of the tube holding element and thus unlocking of the removable tube.

In addition, the tube holding member is a transversely displaceable to the removable tube in the receiving block bolt and the locking element is rotatably connected to the feeder cover and acts laterally on an end portion of the bolt. In order to ensure a high stability of the rotationally fixed connection with the feeder cover, the blocking element can be formed in one piece with a swivel joint eye of the feeder cover. Alternatively, it can also be welded or otherwise connected to the feeder cover.

The sensor element is preferably a parallel to the removable tube in the receiving block insertable bolt which has a transverse groove over which the tube holding member is guided. Alternatively, instead of the bolt, for example, a pin or the like may be used. Also, instead of the transverse groove, a complete opening may be provided for the passage of the tube holding member, or the tube holding member may be formed and arranged to block or release this passage in the manner of a slider.

Furthermore, the exchangeable pipe preferably has a transverse recess at the pipe end, in which the pipe-holding element is guided.

As a captive preferably prevents a stop the pipe holding element to a complete removal from the Weapon when the removable tube from the receiving block; is removed.

The invention will be explained in more detail by means of an embodiment with reference to the accompanying schematic drawing. In this show

Fig. La-c perspective partial views different functional positions of some main parts of a weapon according to the invention;

Figure 2 is a partial perspective view obliquely from above on a functional position of the main parts of the weapon of Fig. 1. and

3a-b are side views of the locking mechanism of the weapon of FIG. 1st

The invention will be described below with reference to a grenade launcher, which is not to be understood as limiting. As already described at the beginning, the invention can be used for all weapons with an exchangeable tube system. Fig. Ia shows the grenade launcher in a perspective view. This includes, inter alia, a receiving block 2 for receiving a removable tube 4, a Patronenzuführeinrichtung 5 with a feeder cover 6 and a housing 8. All other parts of the grenade launcher, such as closure system, trigger mechanism, etc. will not be further described below, since they are obvious to one of ordinary skill in the art , For example, reference is made to DE 43 45 228 A1 of the same Applicant for the detailed structure of such a grenade launcher, the disclosure of which is hereby incorporated by reference in its entirety into the present description. In the front end of the housing 8, the receiving block 2 is fixedly mounted, which carries centered on the longitudinal center of the exchange tube 4 with a arranged at the rear end of the removable tube 4 cartridge chamber (not shown). The feeder cover 6 is a downwardly open, flat container with a belt inlet on its one outer side. The belt inlet comprises two opposite guide grooves 20, the widths of which correspond, for example, to the cartridge diameters at the cartridge tip or the cartridge base (possibly even plus any wall thicknesses of the cartridge belt holding the individual cartridges together). The feeder cover 6 can be pivoted between an open and a closed position via a pivot axis connected thereto in a rotationally fixed manner. The opened feeder cover 6 prevents the firing, since in this position the cartridges the cartridge chamber or the closure system (not shown) can not be supplied at all. In this safety mechanism, the weapon can not get into a ready to fire state, since you can not be fed cartridge, unlike a likewise covered by the invention, the safety mechanism in which in an otherwise ready to fire weapon with a cartridge in the chamber a shot firing example is prevented by blocking the shutter or the trigger mechanism.

To move the feeder cover 6 are located at the lower end two, fixedly connected to this hinge 10th

About this, the feeder cover 6 by means of a transverse to

Removable tube 4 extending plug pin 12 attached to the receiving block 2. For this purpose, two eyelets 16 with the same inner diameter as that of the hinges 10 are fixedly attached to the receiving block 2, through which the locking pin 12 is passed. Thus, the feeder cover 6 can be pivoted about serving as a pivot axis 12 locking pin 12. In Fig. Ia he is in the closed

Position. In this position, the cartridges on the cartridge feeding 5 can be supplied laterally, transversely to the direction and introduced via the shutter in the cartridge chamber. After a firing, the empty ones Cartridge sleeves ejected on the side opposite the belt inlet via an ejection window (not shown).

In addition, located on the bolt head opposite end 44 of the bolt 12 a projecting from the locking pin 12 locking spring 46, which secures the locking pin 12 against accidental removal or falling out. If it is to be removed again, the securing spring 46 is pressed into the locking pin 12 and it can be pulled out again through the hinges 10 and the eyelets 16 therethrough. Thus, the feeder cover 6 can be removed, for example for cleaning purposes.

In addition, the exchangeable tube 4 is locked by a tube locking device 22 by means of a tube holding bolt 14 in the receiving block 2. For this purpose, the exchange tube 2, as shown, completely brought in the receiving block 2 in abutment. When inserted into these, the exchangeable tube 2 is centered in the receiving block 2 by means of guide rings 3 extending around the tube end. In addition, a first guide ring 3 has a transverse groove 7 which cooperates with a lug (not shown) within the receiving block 2 such that the exchangeable tube 2 can only come into abutment within the receiving block 2 in a rotational position (see FIG. When attacking the exchange tube 2 is in a position in which it can be locked. For this purpose, the tube holding bolt 14 is introduced transversely to the running direction in a partially tubular configured guide 39 with an inner diameter substantially equal to the bolt outer diameter to the stop (see Fig. Ib). This guide 39 is formed in the central region of the tube holding bolt 14 by a throat 40 at the shoulder surface facing away from the inserted tube end of one of the guide rings 3 in combination with a semicircular transverse groove 42 running parallel in the receiving block 2 (cf., FIGS. The tube holding bolt 14 is on its end portions in holes 15a and b within the

Recording block 2 recorded.

Further, the tube locking device 22 comprises a sensor element 24, in the form of a sensor pin 24. At the front end of the removable tube 4 opposite the cartridge chamber is a permanently connected to the removable tube 4, parallel to the removable tube 4 protruding nose 34 which presses on the sensor pin 24 (see. Fig. 2). When inserting the exchangeable tube 4 in the receiving block 2 of the sensor pin 24 is biased by the nose 34 parallel to the pipe run in the receiving block 2 against the spring pressure of a sensor pen spring 25 (Cf. Fig. Ib and 2) of a locking in a release position. In Fig. 1, the exchange tube 4 is in abutment and thus the sensor pin 24 in its release position.

The sensor pin 24 has on its upper side a semicircular transverse groove 30 (see Fig. 2). In the release position, the sensor pin 24 is pushed so deep into the receiving block that the transverse groove 30 is flush with the throat 40 of the guide 39 and thus forms a step-shaped passage for the lower region of the guide 39 (see Fig. Ib). The tube retaining pin 14 can thus be guided through this passage and brought into the locking position. In the blocking position, however, the sensor pin 24 blocks the insertion of the tube holding bolt 14 (see Fig. Ic).

In addition, a locking mechanism 26 cooperates with the tube locking device 22 such that the feeder cover 6 can be pivoted only in the closed position when the removable tube 4 is completely received and locked in the receiving block 2. For this purpose, the locking mechanism 26 comprises a locking plate 28 which is fixedly connected to the outer tube 4 facing the outer edge of the feeder cover 6 and protrudes perpendicularly from the Zubringerdeckelboden. If the tube retaining pin 14 is not completely in abutment, so in the locked position, and sticking out of his leadership 39, he blocks over the

When closing, the locking plate 28 comes into abutment with the tube retaining pin 14 and then holds the feeder cover 6 open like a lever by blocking the pivoting track of the locking plate 28 (see Figures 3a and 3b).

In addition, the locking mechanism 26 blocks the tube holding pin 14 in its locked position with closed feeder cover 6 in which the locking plate 28 pushes against the head of the tube holding pin 14 when closing the feeder cover 6 and thus prevents them from falling out or unintentional, manual removal.

If the pipe holding bolt 14 is finally pulled out of the receiving block 2 for the pipe removal, a stop pin 36 prevents the pipe holding bolt 14 from being completely removed from the guide 39. The stop pin 36 runs parallel to the exchangeable pipe 4, perpendicular to and above the pipe holding bolt 14. The tube holding bolt 14 has a longitudinally extending, respectively remote from both ends of the tube holding bolt 14 extending, flattened recess 48, which together with the stopper pin 36, the longitudinal movement of the tube holding bolt 14 to the length the recess 48 limited (see Fig. Ib). When the tube retaining pin 14 is now pulled in a tube change, the stop pin 36 blocks the complete removal of the tube holding bolt 14 when it abuts the end of the recess 48 opposite the bolt head.

Fig. Ib shows the feeder cover 6 in the open position, so pivoted 90 degrees upwards. The locking plate 28 has now released the head of the tube holding bolt 14. This is pulled out of the guide 39 until it stops against the stop pin 36 and arrives completely out of engagement of the throat 40 on the guide ring. 3

The exchange tube 4 can now be changed.

In Fig. Ic is the feeder cover 6 in a half-open position and the exchange tube 4 is partially pulled out of the receiving block 2. At the end of the pipe to the receiving block 2, the throat 40 can be seen on the shoulder surface of the guide ring 3, which forms the lower portion of the guide 39 for the tube holding bolt 14. When pulling out the removable tube 4, the sensor pin 12 was released from the nose 34 of the exchange tube 4, and pushed out of the sensor pin spring 25 from the receiving block 2. He is now in its locked position and concludes flush or recessed with the outside of the receiving block 2. The transverse groove 30 in the sensor pin 12 is now offset from the guide 39 and thus blocks the complete insertion of the tube holding bolt 14 in the guide 39. In this position, the tube holding bolt 14 also blocks the path of the locking element 28 and thus the complete closing of the feeder cover 6, as above described.

Fig. 2 shows in a perspective Schrägaufsicht from above, as the firmly connected to the removable tube 4 nose 34 pushes the sensor pin 24 into the receiving block 2 while the transverse groove 30 is brought in the sensor pin 24 in accordance with the guide 39, so that the tube holding bolt 14 can be fully implemented. The feeder cover 6 is opened and pivoted upwards by 90 degrees.

FIGS. 3a and 3b show the locking mechanism 26 in detail. In Fig. 3a, the feeder cover 6 is pivoted 90 degrees upwards. The locking plate 28 is lifted from the pipe holding bolt 14. In Fig. 3b, the feeder cover 6 is closed so far until its locking plate 28 rests on the not fully inserted into the guide 39, so protruding from the receiving block 2 tube holding bolt 14.

Claims

claims

1 . Waf fe, with - an exchangeable tube (4), a pipe locking device (22) which locks the exchange tube (4) in the weapon, and a securing mechanism which a locked state in which it prevents a firing of the weapon, and a release state at he allows the gun a firing, can take, with the locking mechanism so cooperates with the pipe locking device (22) that it is in its release state only in the

Pipe locking device (22) locked interchangeable tube (4) can take, characterized in that the securing mechanism comprises a Zubringerdeckel (6), which is part of a Patronenzuführeinrichtung over which the cartridges are supplied to the weapon and between an open, the lock state corresponding position and a closed, the release state corresponding position is movable, the feeder cover (6) comprises a locking mechanism (26) which cooperates with the pipe locking device (22) such that the feeder cover (6) can be brought only in the closed position when the exchangeable pipe (4) from the

Pipe locking device (22) is locked in the weapon.

2. A weapon according to claim 1, wherein the tube locking device (22) a

Tube holding member (14), which can be brought to lock the exchange tube (4) in a locking position is, and the locking mechanism (26) with a

Shuttle cover (6) rotatably connected locking element (28) cooperates with the tube holding member (14) such that the feeder cover (6) can not be brought into the closed position when the tube holding member (14) is not in the locking position.

3. Weapon according to claim 1 or 2, wherein the tube locking device (22) comprises a receiving block (2) for receiving the exchangeable tube (4) and a sensor element (24) with the exchange tube (4) and the tube holding member (14) cooperates, that the tube holding element (14) can be brought into the locking position only when completely in the receiving block (2) recorded exchange tube (4).

4. A weapon according to claim 3, wherein the sensor element (24) by means of a sensor element spring (25) is biased from a first to a second sensor element positions and cooperates with a with the removable tube (4) fixedly connected nose (34) such that it Introducing the exchange tube (4) in the receiving block (2) to the stop by the nose (34) against the spring force of the sensor element spring (25) is moved to the first sensor element position.

5. A weapon according to claim 3 or 4, wherein the sensor element (24) has a recess (30) which is arranged such that it allows only in the first sensor element position a passage for the tube holding member (14) in its locking position.

6. Weapon according to one of claims 2 to 5, wherein the tube holding member (14) in such a way with the feeder cover (6). cooperates, that it is blocked in the locking position, when the feeder cover (6) is closed.

7. A weapon according to any one of claims 3 to 6, wherein the tube holding member (14) transversely to the removable tube (4) in the receiving block (2) displaceable bolt (14), and the locking element (28) rotatably with the feeder cover (6). is connected and laterally on an end portion of the bolt (14) acts.

8. A weapon according to any one of claims 4 to 7, wherein the sensor element (24) is parallel to the removable tube (4) in the receiving block (2) insertable pin (24) having a transverse groove (30) in which the tube holding member (14).

9. A weapon according to any one of claims 2 to 8, wherein the exchange tube (4) at the tube end has a transverse recess (40) in which the tube holding member (14) is guided.

10. A weapon according to any one of claims 2 to 9, with a stop (36), which prevents the tube holding member (14) to a complete removal from the weapon.