DE1915040A1 - Grenade launcher - Google Patents

Description

PATENT Attorney DIPL-ING. H. E. BOHMER

703 BUBLINCEN / WUHTT. . SINI) ELFINCEn STRASSE 49 1 Q 1 ζ Ο Λ Ω

TELEPHONE (07031) 613040

Applicant: COLT'S Inc.

Hartford, Connecticut, V.St.A.

Official file number: New registration

Grenade launcher

The invention relates to a device for firing grenades, i. So a grenade launcher with a cylindrical housing and a loading opening and a tube that is slidably mounted in the housing, a Handle attached to the tube for moving the tube between a loading / unloading position, in which the loading opening is exposed and a locked firing position in which the loading opening is closed, and with one with the pipe connected to the trigger arrangement, which is movable together with this. It is the object of the invention to provide an improved firing device To create device for grenades, which has a clamping trigger, in which a) cocking and firing the grenade by a single movement of the trigger is possible, which b) equipped with significantly improved safety devices and fully automatic safety devices is, c) easy and quick loading and unloading with one hand with as small a number of hand movements as possible - d) easy Can be dismantled in the field into three parts for easier cleaning

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and e) the possibility of attachment to the barrel of a handgun, such as E.g. on the barrel of a small caliber rifle for quick and accurate shooting Firing grenades independently of and without affecting the normal operation of the rifle.

This is achieved according to the invention in that a fixed trigger device is provided which is attached to the housing and which has an actuating member which cooperates with the trigger arrangement in order to actuate the trigger device only when the barrel is in the firing position, the -off device in load or Entladestel- W lung automatically mechanically by the actuating member is isolated.

In particular, the trigger device is designed as a clamping trigger, wherein the parts forming the clamping trigger cooperate with the actuating member in order to close the trigger device with a single movement of the trigger cock and release when the barrel is in the firing position.

The new grenade launcher is preferably designed to be combined with a kie-calibrigen one Weapon suitable (in relation to the caliber of the grenade launcher), which has at least one barrel and its own trigger device, whereby the housing below the barrel of the low-caliber weapon is attached in such a way that the handle of the barrel is in front of the trigger of the low-caliber weapon

lies, while the trigger assembly in front of the handle and in considerable Distance from the trigger of the low-caliber weapon is arranged.

The arrangement is preferably made so that the housing and the Tube are axially displaceable and rotatable relative to each other, whereby a rotation of the tube, the handle and the trigger assembly from the locked firing position in an unlocked, collapsed position

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tion is possible in which the loading opening is still closed and the trigger assembly is only rotated by an angle with respect to the trigger device is, while the loading opening is exposed by the axial movement in the loading / unloading position.

It is advantageous if there is a manually releasable securing device on the pipe is attached, which blocks the movement of the trigger in the secured position and releases the movement of the trigger in the release position and which then automatically comes into engagement with the housing and thereby in the locking position is moved when the tube is rotated from the locked locking position to the unlocked, collapsed position will.

The invention will now be based on an exemplary embodiment in connection: application described in more detail with the accompanying drawings. It shows:

Fig. 1 is a side view, partially in section, of a

Preferred embodiment of a grenade launcher which is attached to the barrel of a small-caliber rifle, the grenade launcher being shown in a fixed firing position;

Fig. 2 is a side view, similar to FIG. 1, partly in

Section showing the grenade launcher in the unlocked, collapsed state in dashed lines Represents lines and in solid lines in loading position;

3 is an enlarged view, partly in section,

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1 9 1 50AO

along the line 3 - 3 in Fig. 1;

4 is an enlarged view, partially broken away

and partially in section along line 4-4 in

Fig. 2;

Fig. 5 is an enlarged side view of the grenade launcher;

partly broken away and partly in section to show one side of the trigger device in FIG Position immediately after firing the grenade;

Figure 6 is a side view, partly broken away and partly

wise in section, from the other side of the trigger device derFig. 5, in which the neutral position the trigger in full lines and the cocked position in dashed lines is shown>

Fig. 7 is a sectional view, partly broken away, longitudinally

the line 7-7 in Fig. 1, to illustrate the fastening device the grenade launcher on the gun barrel;

Fig. 8 is a side view, partially broken away, for

Part in section, of the device according to FIG. 7;

Fig. 9 is an enlarged isometric view of the in the

Grenade launcher according to the invention used sear and

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10 is a partial sectional view on a reduced scale

along the line 10-10 in FIG. 5.

From the drawings you can see in detail a grenade launcher 10, the • contains essentially two concentric tubular cylinders that form a Form housing 12 and a tube 14 slidably mounted therein.

• The housing 12 is for a better illustration of a combined weapon shown, in which the grenade launcher 10 in the middle below the barrel 16 of a conventional small-caliber weapon, such as a rifle or Kara

20 biners 18 is attached, which has a rifle butt that provides the recoil when firing the rifle or grenade launcher. The grenade launcher 10 is attached to the gun barrel 16 by a pair of fastening lugs 21, 22 attached, which extends from the front end of the grenade launcher housing 12 according to Extend above and with the gun barrel by means of a pipe clamp or clamping plate 24 and two screws are detachably connected, as can be seen in detail from FIG. .

To the heat transfer between grenade launcher 10 and 18 on a rifle Reduce minimum, is a heat shield 26 of semicircular Cross-section is provided which surrounds the gun barrel 16 after it has been inserted into the approximately U-shaped opening 28 of the fastening tabs 22.

The heat shield 26 preferably consists of a metal, preferably a steel sleeve 30 having a series of raised ribs or beads 32 which abut the barrel 16 and a layer of insulation 34, which is preferably made of a suitable plastic with very low heat conduction, which is between the sleeve 30 and the U-shaped Seat 28 is located.

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So that the aiming device 36 both for the grenade launcher up to a distance of about 50 m and also for. the rifle can be used, the grenade launcher is attached to the rifle in such a way that the longitudinal axis or The axis of the soul of the grenade launcher barrel converges with the axis of the soul of the gun barrel in the direction of fire. The longitudinal axes of the grenade launcher and the gun barrel are normally arranged in use in a common, perpendicular plane. Of course, they can also be used for steep fire trails The aiming devices required for the grenade launcher must be attached to the rifle, e.g. for firing paths for targets beyond about 50 m.

The trigger device 38 of the grenade launcher essentially contains one rectangular frame 42 with a large central opening 44. The frame 42 is attached to the housing 12 by means of a removable bolt 46, which extends through an upper shoulder 48 of the frame 42. The frame 42 is held in the housing by a plate 50 for transmission of the recoil on the piston 20 held. This plate 50 extends rearwardly from the top of the frame 42 and engages a corresponding one Recess 52 of the housing 12. A suitable cover 54 protects the frame of the trigger device.

A drilled recoil plate 56 is attached to the front of frame 42 and a spring loaded hook shaped ejector 57 is held between frame 42 and recoil plate 56 with the parts held together by an externally threaded firing pin guide nut (58). This has a central bore 60 for the tip of a firing pin. The rear end of the firing pin 62 carries an adjustable end nut 64 which is arranged in a rear opening 66 in the frame 42 and coaxially with the firing pin guide nut 58 so that the firing pin in the frame 42 along an axis extending

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extending through opening 60 in recoil plate 56 for reciprocating Movement is stored.

The firing pin 62 is pressed against the firing pin plate 56 by a main firing pin spring 68, the firing pin spring 68 lying helically around the firing pin, while the outer ends of the firing pin spring are once attached to a rear shoulder 70 of an enlarged ring 72 which lies between the ends of the Firing pin 62 is located, and bear against a stop ring 74 which is slidably mounted on the firing pin in the vicinity of the end nut 64. In order to hold the tip 61 of the firing pin within the firing pin guide nut 58 in a normal or neutral position which is somewhat retracted from the surface 75 of the recoil plate 56 facing the projectile, a further return spring 76 is arranged on the firing pin. The outer ends of this helical return spring 76 bear against the front shoulder 78 of the aforementioned ring 72 and against the rear side 80 of the firing pin guide nut 58 in order to constantly push the firing pin away from the surface 75 of the recoil plate 56 facing the projectile. With the aid of the adjustable end nut 64, the main firing pin spring 68 can be set to a predetermined path length when the firing pin is withdrawn and triggered, regardless of manufacturing tolerances and deviations. Once the end nut 64 is adjusted it will preferably be in that position once adjusted

82
fixed with the help of a pin on the firing pin.

According to a further feature of the invention, the pull-off device is 38

especially for an automatic cocking and triggering or firing of a Grenade, as for example at 84 in the tube 14 immediately in front of the front 75 of the recoil plate 56 is shown in Fig. 5, with only a single movement of the trigger for these two processes.

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is required.

To move the firing pin 62 from its rest position away from the recoil plate to be withdrawn backwards, a pivotable sear 86 is provided with a bridge-like section 88, which has a flat sear edge 90 which can come into engagement with the front shoulder 78 of the ring 72. Opposite ends of the bridge-shaped Section 88 are integrally connected to a pair of approximately S-shaped curved arms 92 and 94 which have arcuate free ends 96 and 98, which, viewed from the sear edge 90, are arranged at the rear on both sides of the firing pin 62. A pair of support brackets 100 is pivotally mounted on a bolt 102 at the upper end on the upper part of the frame 42, each of these tabs 100 with one of the S-shaped arms 92, 94 on a journal 104 attached thereto is stored. The lower ends of the support brackets 100 are connected to one another by a through pin 106, which is connected to a Guide rod 110 sliding yoke 108 is connected. The guide rod 110 is connected to the frame 42 and extends in the longitudinal direction of the frame so that the yoke 108 can reciprocate substantially in a straight line.

If the firing pin 62 is in its rest position, then the sear edge is 90 with the front shoulder 78 of the ring 72 in engagement, so that a movement of the yoke 108 from its very forward rest position (as shown in Fig. 6 with solid lines) to the rear the firing pin 62 against the bias of the main firing pin spring 68 accordingly the backward movement of the sear leads backward. The backward movement of the sear 86 pushes at the same time the return spring 112 together, which screw around a piston 114

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is arranged in a shape, which sits with one end in a bore 116, the is provided in the rear end of the frame 42. The piston 114 extends into a cylindrical bore of a bearing bush 118, which at its one End has a recess 120 into which a nose 122 of the bridge-shaped Section 88 of the sear 86 engages. The spring 112 thus holds the Bearing sleeve 118 engages against sear 86 under pressure and delivers thus a resiliently flexible bearing connection between the sear 86 and the frame 42.

The double action of the movement of the loading trigger of the entire trigger device 38 is triggered by the yoke 108, which is initially in a first rearward position is moved, as shown in Fig. 6 in solid lines, the arcuate ends 96 and 98 of the S-shaped Arms 92, 94 contact the rear wall surface 124 of the frame 42 and cock the firing pin 62. Further continued rearward movement of the yoke 108 causes the S-shaped arms 92, 94 of the sear be rotated around their bearing pin 104 and thus the sear edge 90 raise, which then releases the firing pin 62, which snaps forward under the force of the main firing pin spring 68 and the grenade or Cartridge 84 fires (Fig. 5).

The sear 86 and its associated mechanical parts including of the yoke 108 then move under the action of the return spring 112 simultaneously with the rebound movement of firing pin 62 forward. On the one hand, this occurs at the same time as the impact of the firing pin and the return spring 76, whereby on the other hand the sear in turn finds the ring 72 of the firing pin in Bereltschafisstellung and for locked the next shot.

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-IU-

The firing device described so far ensures that the grenade launcher cannot be fired accidentally, for example by shock or shock, and effectively prevents the grenade launcher 10 from ever being in tensioned state can remain. This practically eliminates spring fatigue.

The trigger 38 not only works simply and reliably, it is also quick to operate and enables the firing pin to be triggered again quickly if the grenade is not fired the first time Has.

"The shell of the grenade launcher is also for ease of use

designed, the grenade launcher according to the invention with only one hand can be charged and discharged. This ease of use is also associated with automatically acting safety devices, the virtually eliminating any possibility of firing the grenade launcher before it is not fully locked.

On the rear bottom part of the grenade launcher barrel 14 is a radial shoulder 126 is provided, which extends through a longitudinal loading opening 128 extends in the rear side wall of the grenade launcher housing 12. As can best be seen from FIGS. 3 to 5, the radial shoulder has a recess 130 defining an arcuate peripheral segment 132 of the recoil plate 56 which extends radially downward below the rear bottom portion of the housing 12. A locking nose is at the rear of the recess 13o at the outer rear end of the tube 14 for engagement with a rear surface 136 of the peripheral segment 132 of the recoil plate 56 is provided. With the locking lug 134 in its position immediately in front of the trigger device 38 and in engagement with

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the rear side 136 of the recoil plate 56 holds a .Kantenabschnitt 138 of the tube 14, which limits the extension of the recess 130 to the front, the end flange 140 of the grenade 84 in the immediate vicinity of the outer surface of the closure plate 75 in the firing position for the trigger device 38 ready.

The housing is releasably held in a locked firing position by a bolt 142 which can be inserted into a circumferential groove 144 which can be seen in the edge of the circumferential segment 132. The latch 142 is shown behind the handle or pistol grip 146 which is attached directly to the shoulder 126 of the tube 14 by a suitable set screw 148. The bolt 142 is pivotably mounted on the tube 14 by means of a bearing journal 150 and a compression spring 152, which lies between the pistol grip 146 and a lower end section of the bolt 142 designed as a recess, holds the bolt in the circumferential groove 144 and thus holds the tube 14 in the locked firing position. It can be seen that in the locked firing position the pistol grip generally lies in a perpendicular plane with the longitudinal axes or core axes of the grenade launcher barrel and the gun barrel. The pistol grip 146 thus visibly and perceptibly indicates that the grenade launcher is in its locked firing position.

To expose the loading opening 128, the latch 142 is used to release the Tube 14 pressed. The pistol grip 146 and entire tube 14 can then about 40 from the locked firing position are rotated clockwise as far as the G housing 12 by stopping on the shoulder 126 2 of the tube 14, whereupon the locking bolt 134 to is moved an angle behind the recoil plate 56 about the circumferential segment 132 release. The pistol grip 146 can then be pushed forward

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to slide the tube 14 forward relative to the housing 12, thereby exposing the loading opening 128. When the tube 14 is pushed forward, the empty cartridge case 84 is automatically held in the ejection position by the ejector 57 and falls out of the opening 128 by gravity.

In the illustrated embodiment, a guide 154 extends longitudinally The inner wall of the housing 12. In this guide 154, a guide pin 156 of the tube 14 runs in relation to the guided longitudinal movement of the tube on the housing 12.

Difficulties due to soiling are largely avoided in that a bearing guide or bearing sleeve 158 is attached to the housing 12 and extends around the tube 14. The bearing sleeve 158 has a number of spaced-apart contact surfaces 160 on its inner wall which are in contact with the tube 14. Between the contact surfaces 160 there are recessed sections 161 whose distance from the tube 14 is smaller than the free space between the tube 14 and the housing 12. This construction prevents undesired foreign matter (dirt) from penetrating between the tube 14 and the housing 12, with at the same time, small dirt particles that have penetrated between them can get into these spaces in a kind of self-cleaning effect, so that contamination directly between the metallic surfaces of the pipe structure is largely avoided. In the exemplary embodiment shown, the bearing sleeve 158 is mounted in an annular groove 162 on the front end section of the inner wall of the housing 12. The bearing sleeve 158 is preferably made of nylon or a similar tough, heat-resistant, self-lubricating material. The tube 14 has a number of external projections such as 164 on the rear end of the tube

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are spaced and contact surfaces for engagement with the inside of the housing 12 to ensure an easy sliding movement of the tube 14.

The contact surfaces 160 also cause frictional engagement on the Tube 14, regardless of the position of the grenade launcher 10. Is the cartridge loading opening 128 fully visible and the tube 14 is in its loading position, As shown in solid lines in FIG. 2, the marksman can remove his hand from the pistol grip 146 for a fresh one Insert the grenade into the barrel 14, whereupon he re-engages the pistol grip grabs and the tube from the loading position back into the unlocked, tele-

Scope-like collapsed position (in Fig. And in Fig. 2 with dashed Lines shown) pushes. The pistol grip 146 then only goes counterclockwise from the unlocked, collapsed position rotated to the locked firing position.

The trigger 38 can only be actuated when the tube 14 is closed is in a locked firing position and is fully locked. This is closely related to a further property of the invention Device in which the trigger assembly 168 is attached to the grenade launcher barrel 14 for actuating the trigger device 38. There the tube 14 and trigger assembly 168 with respect to the housing is rotatable and movable with respect to the yoke 108 of the trigger device, the trigger assembly is only effectively aligned with the trigger 38 in the locked firing position and is during loading and unloading Unloading is not automatically aligned with this extraction device and mechanically separated from it. This is another important security feature represent.

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The grenade launcher trigger 170 is located in front of the pistol grip 146 and includes a rearwardly extending trigger rod 172 which is supported for reciprocating movement in an elongated bore 174 in the shoulder 126 to which the pistol grip 146 is attached . When the barrel 14 is in the locked firing position, the rear end of the elongated bore 174 is aligned with the contact surface 176 of the yoke 108 so that by pressing the trigger 170, the trigger rod 172 along an axis parallel to the axis of movement of the yoke 108 moves and strikes the contact surface 176 for actuation of the trigger device 38. A groove 178 extends in the longitudinal direction partially along ψ the underside of the trigger rod 172 and a retaining bolt 180 is on the tube

14 mounted within groove 178 to allow movement of the trigger assembly limit in both directions.

The trigger assembly 168 is continuous by an within the elongated Bore 174 lying and around a section with reduced diameter 180a of the trigger rod 172 arranged compression spring 182 preloaded in the rest position, whereby the trigger assembly 168 of the tube 14 is normally mechanically separated from the housing 12 and its trigger 38. So that's it possible to automatically separate the trigger 168 from the trigger device 38 in a simple manner during loading and unloading by rotating the tube.

The trigger 170 has an additional guide pin 184 fixedly connected to the lower portion thereof and extending rearward for sliding movement into the pistol grip 146. Lateral movement of the trigger assembly 168 is thereby effectively prevented, thereby eliminating any possibility of the trigger rod 172 jamming on the stop bolt > 180.

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Since the grenade launcher 10 is attached to the rifle barrel 16 to form a combination weapon, any possibility of inadvertently firing a shot is largely avoided even under combat conditions in that the trigger 170 of the grenade launcher is attached in front of the pistol grip 146, so that the grenade launcher trigger from the rifle trigger 186, which is directly in the usual way under the bullet chamber 187 and immediately under a rifle handle 189 is arranged in front of the rifle butt 20, relatively far away is.

In order to carry out a backup completely automatically, one can be released manually Cross pin safety device 190 arranged for movement within a generally rectangular transverse opening 200 formed in the shoulder 126 extends and communicates with the elongated bore 174 for the trigger rod 172 has.

The cross pin safety device 190 has a protruding locking surface 194, which can come into engagement with a shoulder 196 of the trigger rod 172 and thus block any backward movement of the trigger lever 170. The cross pin safety 190 (Fig. 5) preferably has a recess 198 which zur. Aufaufnahme the head of a locking pin 201 is determined by a Spring is held in engagement with the cross pin safety and this holds in a secured, not ready-to-fire position. Moving the cross pin safety 190 seen from the shooter to the left into the release position, then locking surface 194 becomes elongated bore 174 moves out and releases the trigger bar 172 for its movement when squeezed the trigger 170 for firing the grenade 84 free. After the trigger is released, it returns to its rest position under the force of the spring 182 back, in which the trigger assembly 168 is mechanically separated from the trigger device 38, the latch 142 is released, and of the pistol grip 146

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is brought from its vertical firing position into the unlocked telescopically retracted position. As a result of the movement into the unlocked, telescopically extended position, the cross-pin safety device 190 automatically re-engages part of the housing 12 which forms the cartridge loading opening 128 and thus brings the cross-pin safety device into its non-firing safety position. This ensures that the grenade launcher 10 cannot be unintentionally unloaded when the next fresh grenade is loaded and the tube arrangement has been brought into the locked firing position. By means of the construction described in the foregoing, the grenade launcher 10 in the field is easily from the gun 16 w decrease by the withdrawal mechanism 38 as a unit from the tube

14 decreases e.g. by bringing the tube 14 into the loading position and pulls off the fastening bolt 46. Then the tube 14 can be pulled backwards out of the housing 12, so that the grenade launcher can be disassembled into three parts that can be easily screwed together again for easy cleaning and maintenance.

From the preceding description it can be seen that the trigger device according to the invention can only be cocked by the trigger itself. The weapon must, however, be in the locked firing position, and that automatically The cross-pin safety device that has come into engagement must first be released by hand. When this fuse is released, the grenade launcher can quickly and

can be fired simply with a single movement of the trigger and is suitable especially for a quick fire fojjp and that because of the essential Simplified loading and firing and unloading of the weapon with one hand.

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Claims (17)

PATENT CLAIMS fr>. Grenade launcher with a cylindrical housing and a loading opening as well as a tube slidably mounted in the housing, a handle attached to the tube for moving the tube between a drawer / Unloading position in which the loading opening is exposed and one is locked Firing position in which the loading opening is closed, and with one with The extraction arrangement connected to the pipe, which can be moved together therewith, characterized by a fixed extraction device (38) which is attached to is attached to the housing (12) and which has an actuating member (108), which cooperates with the trigger assembly (168) to the trigger device (38) to be actuated only when the tube (14) is in the firing position is located, the extraction device (38) in the loading or unloading position automatically mechanically separated from the actuator (108) is. 2. Grenade launcher according to claim 1, wherein the trigger device is designed as a clamping trigger, characterized in that the Parts (86, 100) forming the clamping trigger cooperate with the actuating member (108), to the trigger device with a single movement of the trigger (170) (38) to cock and release when the tube (14) is in the firing position. 3. Grenade launcher according to one of the preceding claims for combination with a small caliber weapon with barrel and trigger, characterized in that that the housing (12) is attached below the barrel (16) of the small-caliber weapon (18) that the handle (146) of the barrel (14) in front of the trigger of the small-caliber weapon, and that the trigger assembly (168) in front of the handle (146) and at a considerable distance from the 009841/0060 Trigger of the small caliber weapon is arranged. 4. Grenade launcher according to claim 3, characterized by a fastening device extending upwards from the housing (12) (22) for releasable fastening of the housing below the barrel (16), wherein the fastening device (22) has an upwardly approximately U-shaped seat (28) and a heat shield (26) inside the U-shaped bent Has seat which at least partially surrounds the barrel (16) of the small-caliber weapon and largely reduces heat transfer. 5. Grenade launcher according to claims 3 and 4, characterized gekennzeichr net that the longitudinal axis of the tube (14) lies in a common plane with the longitudinal axis of the gun barrel (16), and that the two axes in Weft direction converge. 6. Grenade launcher according to one of the preceding claims, characterized in that the trigger arrangement (168) has a rearwardly extending Has trigger rod (172) which penetrates the handle (146), to come into engagement with the actuating member (108) of the trigger device (38), and that a guide pin (184) at the bottom of the trigger (170) which extends rearwardly for sliding movement into the handle (146) to prevent lateral movement of the trigger assembly relative to the handle (146). 7. grenade launcher according to claim 4, characterized in that the Heat shield (26) from a metallic sleeve (3o), the one Number of raised, spaced-apart ribs (32) which touch the barrel (16) and an insulating sleeve (34) exists between 009841/0060 ti the metallic sleeve (32) and the fastening device (22). 8. Grenade launcher according to one of the preceding claims, characterized in that that the housing (12) and the tube (14) relative to one another are axially displaceable and rotatably mounted, whereby a rotation of the barrel, the handle and the trigger assembly from the locked firing position is possible in an unlocked, collapsed position, in ■ the loading opening (128) is still closed and the trigger assembly (168) is only rotated by an angle with respect to the extraction device, while the loading opening (128) is due to the axial movement in the loading / unloading position is exposed. 9. Grenade launcher according to one of the preceding claims, characterized in that a manually releasable fuse (190) on the tube (14) is attached, which blocks the movement of the trigger (170) in the secured position and the movement of the trigger (170) in the release position releases and which then automatically comes into engagement with the housing (12) and is thereby moved into the locking position when the tube (14) is off the locked firing position is rotated to the unlocked, collapsed position. 10. Grenade launcher according to one of the preceding claims, characterized by a bolt (46) for quickly releasable fastening of the trigger device (38) on the housing (12), whereby the extraction device (38) can be removed as a unit from the housing (1 2) and can be easily separated of the tube (14) from the housing 02). 11. Grenade launcher according to one of the preceding claims, characterized through a bearing sleeve (158) in the front part of the housing 009341/0060 (12) is attached and extends around the tube (14), the The inner surface of the bearing sleeve (158) is at a distance from each other - de, the tube (14) having contacting surfaces (160), while the rear end of the tube (14) has a number of outwardly protruding projections (164) which touch the housing cylinder with contact surfaces. 12. Grenade launcher according to one of the preceding claims / characterized by one on the inner surface of the housing (12) Longitudinal guide (154) and a guide pin (156) of the tube (14) sliding in this guide for guiding a longitudinal movement of the tube * res relative to the housing. 13. Grenade launcher according to one of the preceding claims, characterized characterized in that a radial shoulder (126) is provided on the tube (14) at the rear end, which extends through the loading opening (128), that in front of the trigger device (38) a recoil plate (56) is attached, which at the rear end of the housing (12) the outer surface (75) of a Forms closure plate and has an arcuate peripheral segment (132) which extends radially downward under the rear bottom portion of the housing extends that further in the radial shoulder (126) a recess (130) for Receiving the recoil plate (56) is provided, which forms a locking nose (134) at the rear end of the tube, which with the rear Surface (136) of the circumferential segment (132) of the recoil plate (56) is engaged when the tube is collapsed at an angle from its unlocked position Position is rotated in the locked firing position. 14. Grenade launcher according to one of the preceding claims, characterized by a releasable bolt (142) and a recess (144) for releasably locking the tube (14) in relation to the trigger device 009841/0060 (38) in the. locked firing position. 15. Grenade launcher according to one of the preceding claims, characterized in that the trigger device (38) behind the on the rear At the end of the housing lying recoil plate (56), which is the outer surface ^ 5) a closure plate forms that the trigger device is a movable stored behind the recoil plate (56) and pretensioned against it Holds the firing pin (62) and a sear (86) for cocking the firing pin as well as a mechanical lever connection (100, 108), the trigger for a reciprocating as well as rotating movement carries, with the sear I lift to retract the trigger and the firing pin can be moved away from the recoil plate into a first position in the cocked position, and that the sear in this cocked position by continued movement of the lever connection (100, 108) over the first position can also be pivoted to release the cocked firing pin. 16. Grenade launcher according to claim 15, characterized by a return spring (112), which constantly opposes the sear and its lever connection the recoil plate for engaging the sear with the firing pin (62) presses. 17. Grenade launcher according to claim 15, characterized in that the Discharge tunnel (86) has a bridge-like section (88) with an Abzytstol- "lenkante (90) for engagement with the firing pin (62) and a pair of substantially S-shaped arms (92, 94), each with one end at opposite Ends of the bridge-shaped section (88) are attached, and each having a free end (96, 98) lying on the other side, that the sear lever also have a pair of support tabs (100), which are each hinged at one end and one at the other end 009841/0060 -r- Have connecting pin (106) which connects the support brackets to one another, wherein the support tabs are each connected to one of the S-shaped arms (92, 94) of the sear (86), and that one through the trigger to be actuated yoke (108) is provided, which for a substantially linear, reciprocating movement is designed, wherein the yoke (108) engages around the bolt (106) and so the movement of the sear in causes the clamping position in which the free ends on the housing of the trigger device (38) and thus allow pivoting of the trigger stud end (86), so that further movement of the yoke | (Io8) causes the release of the cocked firing pin (62). 009841/0060