WO1987001192A1

WO1987001192A1 - Double-action fuse for missiles

Info

Publication number: WO1987001192A1
Application number: PCT/EP1986/000409
Authority: WO
Inventors: Hans Assmann
Original assignee: Oregon Etablissement Für Patentverwertung
Priority date: 1985-08-22
Filing date: 1986-07-10
Publication date: 1987-02-26
Also published as: ES2001555A6; EP0232296A1; GR862114B

Abstract

Grenade which can be fired from a tube, containing a firing chain with a percussion fuse. This fuse consists of a detonator (28) that ignites an explosive charge (3) or similar object and of an axially displaceable percussion element (5) with two firing pins (7, 8) pointing in opposite directions. A spring-loaded slide (24) which prior to firing is held by a locking pin (12) that can move in the longitudinal direction of the grenade and disengages during firing, carries the detonator charge and puts the firing chain in a safe position, which it locks in an active position. Of the two firing pins (7, 8) of the percussion element (5), one is intended for actuating a detonating cap (10) of a pyrotechnic charge (21) and the other for actuating the detonator charge (28). The locking pin (12) is arranged parallel to the percussion piece aperture (4) and is released under the gas pressure of the ignited pyrotechnic charge (21) thereby moving the slide (24) which interrupts the firing chain.

Description

Double detonator for projectile.

The invention relates to a grenade that can be fired from a tube with the aid of a propellant charge and contains an ignition chain, with an impact detonator or the like from an explosive charge. igniting detonator and an axially displaceable striker with a firing pin, and with a spring-loaded adjustable perpendicular to the grenade axis, a load-bearing slide, which is held before firing by a grenade longitudinally displaceable, when unlocking locking pin, the slider in the secured position the ignition chain breaks and the ignition chain closes in the active position.

Such a grenade can be found, for example, in GB-PS 815 268. It has a firing pin which unlocks when it is fired and which is ball-locked in a rear end position. In this, an extended firing pin engages in a bore in the transversely displaceable slide. After unlocking, the firing pin spring moves the firing pin into a front end position in which the firing pin has emerged from the slide. This is now shifted by a spring into an active position in which an ignition plug comes to lie in the extension of the ignition needle. As soon as the grenade hits, the firing pin is pushed backwards by the impact and the primer is ignited. A detonator charge, which is also arranged in the slide and which acts on a transmission charge arranged below the slide, is ignited either directly via branching ignition channels or via a delay set arranged in the slide. The passage from the detonator to the transfer charge is also only made after the slide has been moved. A weakness of the grenade is that the

The firing pin serves as a locking pin for the slider before it is fired, and must therefore be released to activate the grenade. In order to still secure a down pipe, the firing pin is delayed by baffles in its front end position. If there is a fault here, the surcharge applies Detonator active and the grenade represents an unreleased dud.

From DE-C 11 01 225 it is known in an impact detonator in an axially displaceable impact body, the rear firing needle of which is prevented from acting on the detonator in a secured position by a displaceable slide, an inner firing pin with a second firing needle pointing forward to accommodate an associated primer and two delay sets as well as a self-detonating primer. Here, when firing, the primer is acted upon by the inner firing pin, which ignites the two delay sets arranged on both sides of the inner firing pin. The combustion of the shorter-burning delay set releases a spacer, or melts it, which, in a secured position, the rear

Keeps the firing pin of the impact body pressed into a recess in the slide so that it is fixed against displacement. After the impact body has been released, the slide can move, making it possible for the firing pin to pass through to the detonator upon impact. If this does not occur in the intended manner, the self-igniting primer, which initiates the action of the detonator by the rear firing needle, is ignited shortly thereafter by the longer-burning second retardation primer. Here there is a problem of fixing the slide on the firing pin only by the

Spacer, which is arranged at the tip of the impact and covered by a membrane. Any damage or deformation of the membrane will unlock the impact igniter. Furthermore, in the event of a malfunction between the two impact igniter parts, self-disassembly is also not ensured, since this also comes about via the striking piece and the detonator.

From DE-A 25 33 226 a pyrotechnic safety and delay relay is known in which an ignition chain also entails a transmission delay charge naitischen slide is interrupted. The displacement path is blocked until it leaves the launch tube. When fired, a primer is fired, which in the locked position ignites the associated transmission delay charge. After leaving the pipe, the combustion gases of the transfer delay charge move the slide into its end position, in which the connection to the main charge has been closed. The projectile provided with this device has neither a detonator nor a self-dismantling.

EP-B 48204 shows a cartridge equipped with a spring-loaded slide with a launch tube and a projectile, the slide interrupting the ignition chain being secured twice. On the one hand, its movement is prevented by an axially parallel locking pin, which releases it when fired due to the inertia, and on the other hand by the launch tube, on which a pin protruding from the slide rests until the projectile has left the launch tube. A transfer charge is separated from the main charge to be ignited by the slide, and a delay charge is then connected to it, the connection of which to the launch propellant charge is locked via a locking piece which can be moved axially parallel before the launch. When fired, the breech block is moved forward under the action of the propellant gases and these ignite the now accessible delay charge. While this burns off, the slide is unlocked and moved into its active position, in which the transfer charge can penetrate the main charge through a now aligned bore in the slide. Here, too, there is no impact detonator or self-dismantling, which can only be activated by the slide movement. Explosive fragmentation grenades with a cylindrical housing part provided at the front with a projectile hood and a floor or DE-A 33 26 683 and 34 41 556 show the bottom side of the bottom screw which closes the filling opening of the housing and carries the adapted detonator, the interior comprising a splinter jacket. The placement of the ignition device in the bottom part improves the functional reliability of the grenades and increases the downpipe and ignition safety, since both can be controlled directly by the launch. Since the impact position of the grenade is essentially defined by flight stabilization, the splintering effect of the grenades with explosive charge is now unsatisfactory in those cases in which the splinter scattering to the front and to the side becomes less effective, for example in the case of

Impact on soft ground into which the grenade partially penetrates.

The invention has now set itself the task of creating a grenade of the type mentioned with improved front pipe security, which preferably can not represent unreleased unexploded ordnance. In a further embodiment, an improved splintering effect is also to be achieved in the case in which the target material more or less insulates the splintering jacket's lateral splintering effect.

This is achieved according to the invention in that the striker carries two opposing firing needles, one of which is provided for loading a primer of a pyrotechnic charge and the other for loading the detonator charge, in that the locking pin is arranged parallel to the striker bore and under the gas pressure of the ignited pyrotechnic set shifting the slide chain interrupting the slide releases, and that the slide carries the detonator charge in a bore parallel to the striker axis, the. is moved to a position coaxial with the striking element in the active position. When firing, the striker strikes the primer due to its persistence, the impact may be dampened by a weak spring, and ignites the pyrotechnic charge, preferably a briefly burning delay charge. The striking piece then moves back to its original position. At this point, the slide is still in a secured position so that the detonator charge cannot be applied. The burning pyrotechnic charge develops combustion gases, through which the locking pin eventually ends up in

Is moved longitudinally, and releases the slide, which is moved under the action of its spring in the active position in which the detonator charge lies in front of the striking piece. There is therefore a front pipe protection, the period of which depends on the burning time of the pyrotechnic

Sentence can be regulated. On impact, the slug hits the detonator charge that is now arranged in front of it, which contains the explosive charge or the like. detonates. Instead of the explosive charge, a shaped charge or the like can also be in the front part of the grenade. be arranged.

In a preferred embodiment it is provided that the detonator firing needle has a cylindrical shaft and the slide has a third bore which is in alignment with the detonator firing needle and whose diameter is at most equal to that of the cylindrical shaft, the detonator firing needle in the secured position from the second Hole is kept spaced. This design increases the safety of the fore-tube, because if the flight is terminated prematurely before the locking pin is moved, the striking piece with the detonator firing needle is driven into the second bore of the slider in front of it and is wedged therein. The movement of the slide is prevented, although after the pyrotechnic set has burned off, the locking pin is displaced and the slide would be released. A particularly simple manufacture of the grenade according to the invention can be achieved if the striking hole and the locking pin guide bore are formed by two parallel blind bores in the bottom part closing the grenade, the inner ends of which are connected by a radial transverse channel in which the pyrotechnic sentence from the primer extends to the locking pin.

A further improvement in front pipe safety, which practically precludes unsecured unexploded ordnance, is achieved by an embodiment in which the locking pin guide bore is separated from the transverse channel by a partition which can be destroyed by the gas pressure of the ignited pyrotechnic charge. The partition can be of any type, preferably it consists of a lead disc resting against a stop. Due to the pressure build-up with subsequent spontaneous breakthrough, the dimensional accuracy of the interacting parts (locking pin, locking pin bore, slide) can be lower, so that the unlocking of the slide is ensured. By selecting the thickness and the material of the partition as well as the pyrotechnic set and their coordination, a fore-pipe security can be achieved to a predetermined distance with manufacturing accuracy even where a slowly increasing pressure effect would cause malfunctions.

The locking pin is usually additionally locked in the secured position before firing.

In a first preferred embodiment, the locking pin is unlocked due to the inertia when firing. For this purpose, it is provided that the locking pin has a tapered section, in which a detent ball engages laterally until it is fired, the detent ball being locked by a recoil bolt which rests on a plate which can be penetrated by the firing. The plate can be made of aluminum or brass, for example If the grenade is subjected to a twist, it is provided for the additional locking that the locking pin has a tapered section, a bore opening radially into the locking pin guide bore being provided in the base part of the grenade, in which a spring-loaded, twist-evolving bolt is arranged in front of the the launch engages in the tapered portion of the locking pin.

The slide preferably has a third bore, into which the locking pin engages in a secured position. Since the locking pin is moved forward by the gas pressure, it must be removed from its path of movement in order to release the slide. There are several options here. For example, the locking pin could be pushed completely forward, which would require a corresponding receptacle in the upper part of the grenade. Furthermore, the locking pin could be in two parts, so that its front part emerges from the locking pin guide after a certain forward movement and is carried along by the slide. In a preferred embodiment, however, it is provided that the tapered section of the locking pin ends in a head which projects into an elongated slot of the slide having an extension, the diameter of the head being larger than the width of the longitudinal slot, and which decreases under the gas pressure the front shifting head of the locking pin emerges from the extension of the longitudinal slot.

As soon as the locking pin head has emerged from the third bore of the slide to the front, the slide can move laterally, the tapered section shifting in the longitudinal slot to the end of the slot.

For the improvement of the splintering effect mentioned at the beginning, if the splintering effect of the splinter jacket is more or less insulated by the target material, is in one Another embodiment provided that the bottom part has free spaces in which additional fragments are provided for the splinter shell of the grenade housing. This results in an improved splintering effect in the floor area of floors with floor detonators, as has hitherto only been known from those with detonators. If the grenade penetrates a soft target, such as the ground, during the impact, there is an essentially uninsulated splintering effect of the additional splinters arranged in the ground, counter to the direction of entry.

In a preferred embodiment it is provided that the additional fragments are embedded in plastic, and in the bottom part splinter inserts in the form of a sleeve, of hollow or solid cylinder segments or the like. form.

The known plastic embedding of fragments makes it possible to dispense with a covering of the free spaces, so that these preferably represent open recesses in which the inserts are fixed by the grenade housing or an inner pot which at least partially surrounds the base part.

An explosive grenade or shaped charge grenade etc., in which self-dismantling should a faulty target impact or failure of the impact detonator occur, in order to avoid an unsecured unexploded ordnance, can be formed in a simple manner in a further variant, here too, the fore-pipe security is guaranteed . This is preferably achieved in that, for self-dismantling in the event of a faulty impact, it contains a second ignition chain which surrounds the impact firing chain and which comprises a self-dismantling delay set and a burning detonator, the self-dismantling delay set branching off from the pyrotechnic set, having a branch radially distanced from the hammer drill hole, and by the in another hole the slider receiving the burning detonator is interrupted in the secured position and is closed in the active position, with the two detonators being bridged by a common transfer charge on the explosive charge side.

The second ignition chain is completely independent of the impact ignition chain, i.e. it bypasses the impact ignition chain between the primer and the transfer charge on the side of the detonating charge, whereby a separate detonator charge is also provided. This ensures self-dismantling despite unchanged downtube security when the slide is in the active position. If, as mentioned above, the slide is not unlocked, for example due to blocking by the firing pin in the event of an early impact, the self-destruct delay burns off, but cannot ignite the shifted burning detonator. An additional security against a rollover on the generation-related burning detonator can be achieved if the radially distant branch of the self-deceleration set is divided on the slide side by a partition that can be destroyed by the gas pressure of the burnable self-deceleration set.

In terms of construction, the expansion for self-disassembly is very easy to achieve if the self-disassembly delay set is L-shaped, and the branch of the self-disassembly delay set branching off the pyrotechnic set in the radial transverse channel and the radially spaced second one

Branch is arranged in a third blind hole in the bottom part.

The invention will now be described in more detail below with reference to the figures in the accompanying drawings, without being limited thereto. Show it :

Fig. 1 shows a longitudinal section through an inventive

Grenade with launch tube,

2 and 3 longitudinal sections through the lower grenade part in 2 different quotes, each in a secured position before firing,

4, 5 and 6 sections along the lines IV-IV, V-V and

VI-VI of Fig. 2,

Fig. 7 is a longitudinal section of FIG. 2 after completion in readiness to serve.

A grenade according to the invention has an upper part designed as a housing 2 and a bottom part 1 screwed into it. The housing 2 contains, for example, a splinter jacket 46 and an explosive charge 3, a shaped charge or another type of main charge, and is only shown schematically. The grenade contains an impact detonator, a self-dismantling device that is independent of it if the impact detonator is ineffective, and a front pipe safety device that excludes both the impact ignition and the self-dismantling in the vicinity of the launch tube 36. In the launch tube 36, a propellant charge 60 is inserted, the treble gases arising after the ignition acting on the base part 1 and causing the launch. Figures 2 to 6 show the secured position before the launch. The bottom part 1 of the grenade has an impact piece bore 4 made from the inside, ie the side facing the housing 2, into which an impact piece 5 is inserted. The diameter of the striking hole 4 then decreases toward the bottom surface, and a primer 10 is inserted in this part. The percussion bore 4 opens into a transverse channel 20 (FIG. 7), which leads radially outwards on one side, and on the other hand is delimited by a partition 44, which is preceded by a ring 52. After screwing in the base part 1, the transverse channel 20 is closed off from the outside by the housing 2, so that the entire igniter installation is encapsulated.

Parallel to the striking hole 4, diametrically opposite one another, two further holes 19, 35 (FIG. 7) are provided in the base part, which likewise open into the transverse channel 20, the holes 35 being separated from the transverse channel 20 by the partition 44. They are preferably arranged at the same radial distance from the striking hole 4. On the explosive charge side, a channel 23 extends in the base part 1 parallel to the transverse channel 20, in which a slide 24 exposed on the upper side is slidably arranged. The slide 24 is provided with side guide webs which engage in side grooves 11 of the bottom part 1 (Fig. 4).

A cover on the explosive charge side in the form of an insulation plate 30, on the inside of which a transfer charge 34 is present, is provided above the base part 1. The insulation board 30 has two openings 32 and 33, which will be explained later, and also represents the bottom of a pot pushed onto the base part 1 from the slide side. The slide 24, the length of which is smaller than the diameter of the base part 1 , has on the side of the bore 35 of the base part 1 a longitudinal slot 25 and a total of four through bores, one of which, the bore 29 represents an extension of the longitudinal slot 25. In this area, the thickness of the slide 24 is reduced, so that a space remains above it. The slide 24 is further provided with two longitudinal bores, in each of which a slide spring 26 is inserted, which is supported on the inside of the pot carrying the insulation board 30. The bore 35 serves as a receiving channel for a locking pin 12, which is displaceable parallel to the striker 4 and has a tapered section 13. 2 (and 5), in the secured position, the tapered section 13 extends from a transverse bore, which receives a ball 40, to a head 15. The tapered section 13 of the locking pin 12 has a diameter, which is smaller than the width of the longitudinal slot 25. The ball 40 lies in the tapered section 13 of the locking pin 12, where it is held by a recoil bolt 38. The recoil pin 38 is inserted into an axially parallel bore 45 of the base plate 1, and at its front

Tapered end. The rear, stepped end 43 of the recoil pin 38 abuts a thin plate 41 which is fixed by a sleeve 42 screwed into the base plate 1. When fired, the offset end 43 of the recoil bolt 38 penetrates the thin plate 41 made of aluminum or brass due to the inertia and finally rests against the sleeve 42. This enables the ball 40 to exit into the free space that is created and unlocks the locking pin.

In the embodiment according to FIG. 3, a locking bore 16 opens radially into the bore 35 receiving the locking pin 12 from the outside. The locking pin 12 has two tapered sections 13, 14 in this embodiment. In the secured position, the tapered section 13 is located at the height of the radial locking bore 16, in which, under the action of a spring 18, a locking bar 17 is arranged which engages in the tapered section 13 of the locking pin 12. After screwing in the base part 1, the locking bore 16 and the transverse channel 20 are closed off from the outside by the pot carrying the insulation board 30, so that the entire detonator installation is encapsulated. The second tapered portion 14 has a length greater than the reduced thickness of the slider 24 and one Diameter that is smaller than the width of the longitudinal slot 25. A head 15 is again provided as the upper end of the locking pin 12. In both versions, the diameter of the head 15 corresponds to that of the bore 29 widening the longitudinal slot 25, into which the head 15 engages. In the transverse channel 20 and in the bore 19, a pyrotechnic set is arranged which can be ignited from the primer 10. The part of the pyrotechnic set leading from the longitudinal axis to the receiving channel 35 for the locking pin 12 is intended to displace the locking pin 12 under the action of the combustion gases. This takes place abruptly as soon as the gas pressure is sufficiently high to break through the partition wall 44, which is made of lead, for example. This part 21 of the p / rototechnical set is, in particular, a delay set with a short burning time, the period of time until the partition 44 ruptures corresponds at least to the flight duration within which the fore-pipe safety must be guaranteed. On the other hand, this period of time must be shorter than the flight time to the destination. In the other part of the transverse channel 20 and the bore 19, an L-shaped self-deceleration delay set 22, that is to say a second part of the pyrotechnic set, is used, the burning time of which is greater than the flight time to the target impact. Since the burn-up lengths of the two parts 21, 22 of the pyrotechnic set are different, preferably approximately 1: 2.5, the two parts 21, 22 of the pyrotechnic set can have the same composition, since the self-decay delay set 22 in the example mentioned anyway has the 2.5- times the burning time.

The slider 24, in the bore 29 of which the longitudinal section 25 engages the head 15 of the locking pin 12, accommodates a burn-on detonator 27 and a tapping detonator 28 in two further through holes. wherein the axis of the hole for the tapping detonator 28 is offset from the axis of the striking hole 4 by the displacement of the slide 24, and the center distance of the detonator holes corresponds to the center distance of the striking hole 4 and the bore 19 for the self-deceleration delay set 22. The two openings 32, 33 mentioned lie in the extension of the striking hole 4 and the hole 19 for the parallel branch of the self-deceleration delay set 22 and are over-licked by the transfer charge 34. On the slide side, the self-dismantling delay set 22 is covered by a partition 51 which can be destroyed by the gas pressure and which is fixed in the bore 19 by a ring 52. The striker 5, which is displaceable in the striker bore 4, has an ignition needle 7, 8 on both sides, the ignition needle 7 being associated with the primer 10, and the ignition needle 8 cooperating with the tapping detonator 28 on impact. The striking piece 5 can be prevented in its axial displacement by a shear pin, wherein a very soft damping spring can optionally be provided between the primer 10 and the striking piece 5.

The grenade is, as mentioned, fired from the tube 36 by the propellant charge 60. Due to the inertia of the recoil bolt 38, the plate 41 and the shear pin, if provided, of the striking piece 5, which acts on the primer 10, breaks. This ignites the pyrotechnic set 21, which is contained behind the primer in the transverse channel 20 and burns radially outwards on both sides. Both the impact ignition chain between the striking element 5 with its ignition needle 8 and the transfer charge 34 and the self-ignition ignition chain between the primer 10, the L-shaped one Self-dismantling delay set 22 and the transfer charge 34 are still interrupted by the slide 24. The ignition of the explosive charge 3 is therefore not possible via either of the two ignition chains as long as the slide 24 is in the secured position. After the launch, the ball 40 moves in the embodiment according to FIG. 2, and in the embodiment according to FIG. 3 the bolt 17 moves outwards from the tapered section 13 of the locking pin 12, which makes its longitudinal displacement possible. By the gas pressure of part 21 of the pyrotechnic set, which can be selected as a delay set in its burning time, the partition 44 is finally broken, and the locking pin 12 is suddenly moved forward, whereby the head 15 from the bore 29 of the slide enters the free space. The slider 24 is thereby unlocked and, due to the two springs 26 (FIG. 4), shifts into its active position, as shown in FIG. 7 shortly before the target strikes. In this, both ignition chains are closed because, due to the slide displacement, the tapping detonator 28 in front of the firing pin 8 of the striking element 5 and the burning detonator 27 in front of the parallel branch of the self-deceleration delay set 22 lie in the bore 19, which has only partially burned down. If the target is now hit, the striker 5 flips forward and ignites the tapping detonator 28, which in turn ignites the transfer charge 34 and the explosive charge 3 through the opening 32 of the insulating plate 30, which is now aligned with the tapping detonator 28. If the impact is too soft or there is a malfunction of the striking element 5 or the tapping detonator 28, after the self-deceleration delay set 22 has burned off and the partition 51 has been destroyed by the gas pressure, which can no longer escape after the slide displacement, the second ignition chain is also closed . Thus, the burning detonator is ignited by the now with this aligned opening 33 of the insulation board 30 also the transfer charge 34 and thus the explosive charge 3 detonates. The movement of the slide 24 after the head 15 emerges from the bore 29 is possible because the locking pin 12 then passes through the bore 29 only with a tapered section, and the slide 24 due to the small diameter of the tapered section to the end of the longitudinal slot 25 can slide. In the secured position of the slide 24 shown in FIGS. 2, 3, 4 and 6, a bore 37 of the slide 24, which runs between the longitudinal slot 25 and the tapping detonator 28, falls into the grenade axis and thus lies in front of the firing pin 8 of the striking element 5. The firing needle 8 is provided with a cylindrical shaft, the diameter of which corresponds to that of the bore 37 or is slightly larger. This bore 37 of the slider 24 serves to increase the safety of the foreline. Should the grenade hit an undesirable obstacle in the required fore-pipe safety distance, for example in the case of poor target detection on a tree or the like, then after the first part 21 has burned off, the displacement of the locking pin 12, the unlocking and displacement of the slide 24, and thus the would Closure of the self-dismantling ignition chain instead, so that the detonation would take place after the second part 22 has burned off. The impact on the undesired obstacle now causes the impact piece 5 to rush forward, the impact firing needle 8 thereby entering the bore 37 and being clamped therein. If necessary, a slight widening of the bore 37 also occurs, as a result of which the driven firing needle 8 is permanently fixed therein. Thus, the slider 24 remains in the secured position, although the locking pin 12 is moved forward, and the self-dismantling ignition chain is interrupted. Since the burning detonator 27 is highly flammable, and Due to production-related circumstances, even in the secured slide position, the end of the self-deceleration delay set 22 is relatively close, the risk of unwanted burnout in the event of premature delivery in the foreline protection area is caused by the ring 52 holding the destructible partition 51, by a blind hole 54 in the slide 24 and by one Discharge duct 53 completely eliminated. The ring 52 forms a cross-sectional constriction, so that the distance to the burning detonator 27 is increased. After the partition 51 has burst, the fuel gases flow into the blind hole 54 and into the discharge duct 53 indicated in the drawings, which leads to the outside of the base part 1. Here, a further buffer space is formed in that wall parts of the pot having the insulation board 30 are left out. However, if the slide 24 is moved into the active position according to FIG. 7, so that the self-dismantling ignition chain, as mentioned, is to be closed, the shifted blind hole 54 interrupts the passage into the relief channel 53.

As can be seen from FIGS. 1, 5 and 6, the ignition device does not take up the entire space in the base part 1, but there remain free spaces in the form on both sides of the central zone which receives the striker 5, the locking pin 12 and the pyrotechnic sets 21, 22 of cylinder segments. These are used for receiving splitter inserts 49, which supplement the splinter jacket 46, the housing 2. The splinters 50 of the splinter inserts 49 are discharged when the grenade is hit and the explosive charge 3 is fired, in particular on the firing side, the thread 47 of the base part 1 breaking and this being removed from the housing 2. If the grenade penetrates into a soft target material more or less deeply upon impact, at least the effect of the splinters 50 of the base part 1 is only slightly or not impeded.

Claims

Patent claims:

1. Grenade, which can be fired from a tube with the aid of a propellant charge and contains an ignition chain, with an impact detonator, or the like, from an explosive charge. igniting detonator and an axially displaceable striker with a firing pin, and with a spring-loaded adjustable perpendicular to the grenade axis, a load-bearing slide, which is held before firing by a grenade longitudinally displaceable, when unlocking locking pin, the slider in the secured position the ignition chain interrupts and the ignition chain closes in the active position, characterized in that the striker (5) carries two opposing ignition needles (7, 8), one of which is used to act on a primer (10) of a pyrotechnic set (21) and the other is provided for the application of the detonator charge (28), that the locking pin (12) is arranged parallel to the striking hole (4) and, under the gas pressure of the ignited pyrotechnic set (21), releases the slide (24) which interrupts the ignition chain, and that the slide (24) in a to Percussion axis parallel bore carries the detonator charge (28) which is moved in the active position in a coaxial with the striker (5) position.

2. Grenade according to claim 1, characterized in that the detonator firing needle (8) has a cylindrical shaft and the slide (24) has, in the secured position with the detonator firing needle (8) aligned, second bore (37), the diameter of which is at most the same that of the cylindrical shaft, the detonator firing needle (8) being held in a secured position at a distance from the second bore (37).

3. Grenade according to claim 1 or 2, characterized in that the striking hole (4) and the locking pin guide bore (35) are formed by two parallel blind holes in the bottom part closing the grenade (1), the inner ends of which are formed by a radial transverse channel (20). are connected, in which the pyrotechnic set (21) extends from the primer (10) to the locking pin (12).

4. Grenade according to claim 1 or 3, characterized in that the locking pin guide bore (35) from the transverse channel (20) by a gas wall of the ignited pyrotechnic set (21) destructible partition (44) is divided.

5. Grenade according to one of claims 1 to 4, characterized in that the locking pin (12) has a tapered section (13) in which a locking ball (40) engages laterally until firing, the locking ball (40) by a recoil bolt (38) is blocked, which rests against a plate (41) which can be penetrated by the launch.

6. Grenade according to one of claims 1 to 4, characterized in that the locking pin (12) has a tapered section (13), wherein in the bottom part (1) of the grenade a radially opening into the locking pin guide bore (35) bore (16) is provided is in which a spring-loaded twist-evasive bolt (17) is arranged, which engages in the tapered section (13) of the locking pin (12) before firing.

7. grenade according to claim 5 or 6, characterized in that the tapered portion (13) of the locking pin (12) ends in a head (15) which projects into an elongated slot (25) of the slide (24), wherein the diameter of the head (15) is larger than the width of the longitudinal slot (25), and the head (15) of the locking pin (12), which moves forward under the gas pressure, emerges from the extension of the longitudinal slot (25).

8. Grenade according to one of claims 1 to 7, characterized in that the pyrotechnic set (21) generating the gas pressure for the locking pin displacement is a delay set.

9. grenade according to one of claims 1 to 8, characterized in that the bottom part (1) has free spaces in which the splinter jacket (46) of the grenade housing (2) additional splinters (50) are provided.

10. Grenade according to claim 9, characterized in that the additional splinters (50) are embedded in plastic, and in the bottom part (1) splinter inserts (49) in the form of a sleeve, of hollow or solid cylinder segments or the like. form.

11. Grenade according to one of claims 1 to 10, characterized in that it contains a second ignition chain surrounding the impact ignition chain, which comprises a self-deceleration delay set (22) and a burning detonator (27), the self-deceleration delay set (22 ) branches off from the pyrotechnic set (21), has a branch which is radially distanced from the striking hole (4), and is interrupted in the secured position and closed in the active position by the slide (24) receiving the burning detonator (27) in a further hole, the two detonators (27, 28) being bridged by a common transmission charge (34) on the explosive charge side.

12. Grenade according to claim 11, characterized in that the radially spaced branch of the self-deceleration delay set (22) on the slide side is divided by a partition wall (51) which can be destroyed by the gas pressure of the burning self-deceleration delay set (22).

13. Grenade according to claim 3 and 11, characterized in that the self-dismantling delay set (22) is L-shaped, and the branch of the self-dismantling delay set (22) branching off from the pyrotechnic set (21) in the radial transverse channel (20) and the radially distanced second branch in a third blind bore of the base part (1) is arranged.