ES2893876T3 - Grenade and procedure for activating this - Google Patents

Abstract

Procedure for firing a grenade, releasing a spring-loaded two-part striker (26, 55, 67) upon release of a rocker arm (37), the striker (26, 55, 67) being hammered with the rocker arm retention ( 37), the cocked firing pin (26, 55, 67) being fixed by the holding rocker (37) and in this respect being locked in the cocked state by a close coupling (43, 56, 71) between the firing pin parts ( 26, 55, 67), the locking of the hammered hammer (26, 55, 67) being removed when the rocker arm (37) is released, and in this case a detonator with at least one charge ( 12) that causes a visual and/or acoustic effect or a detonation, releasing, when the rocker arm (37) is released, the coupling (43, 56) of the striker (26, 55) automatically and thus activating the striker (26, 55) pretensioned by spring for the activation of the load (12), or because the locking of the hammered hammer (26, 55), after s When the rocker arm (37) is released, it is released automatically by opening and automatic separation of the coupling (43, 56) as a consequence of the spring pretension of the striker (26, 55), and in this respect the rocker arm (37) pivots automatically by the elastic force of the prestressed spring of the firing pin (26, 55) to a position that releases the coupling (43, 56), or by maintaining a lock of a main part (69) in an extension piece (70) of the firing pin (67). ) by means of at least one coupling body until the introduction of the detonation operation by means of a locking sleeve (79) prestressed by a spring that surrounds at least partially the main part (69) and allows a relative movement between the main part (69) and the locking sleeve (79) and the spring-loaded locking sleeve (79) being held by the rocker arm (37) so that it cannot move longitudinally until the rocker arm (37) is released to enter the operation. detonation no.

Description

DESCRIPTION

Grenade and procedure for activating this

The invention relates to a method for actuating a grenade according to the preamble of claim 1, as well as a hand-operated grenade according to the preamble of claim 4. The grenades mentioned in this case may be grenades that They have a charge to generate a visual and/or acoustic effect, for example, a smoke grenade, or an explosive charge.

The charge is generally activated by a detonator that is actuated by a spring-loaded firing pin. The firing pin is held by a lockable rocker arm in its pretensioned state until the firing pin is selectively unlocked by releasing the rocker arm.

In grenades, it is common to secure a rocker arm that serves to lock and actuate a spring-loaded firing pin until use of the form-fitting grenade, for example by means of a safety pin or a safety ring in a position that locks the firing pin cocked. In this way, the firing pin is continuously spring-loaded and the grenade is thus always ready for detonation. This makes such common grenades have a high potential for danger.

From document WO 2016/207250 A1, a hand-operated grenade is known that allows the firing pin not to be cocked until immediately before using the grenade. In this regard, the retained rocker arm holds a coupling associated with the striker closed. For the detonation of the grenade the rocker is released. In this connection, the rocker arm is pivoted by means of a rocker arm pivot mechanism, so that the spring-loaded firing pin can detonate the grenade.

The invention is thus based on the object of creating a manually actuated grenade and a method for manually actuating the same with which the release of the prestressed hammer fixation can be designed in a simple but also reliable manner.

A method for solving this object has the measures of claim 1. Accordingly, the firing pin is cocked only when needed. This preferably takes place immediately before the intended detonation of the grenade. The rocker arm locks the cocked firing pin until the rocker arm is released. When the rocker arm is released, a spring-loaded striker coupling is preferably automatically released and the spring-loaded striker is thus automatically released without the rocker arm having to be actuated in any way. Simply releasing the rocker arm releases the coupling from the cocked firing pin and/or separates the coupling parts and thus introduces the detonation of the grenade.

Preferably, it is intended to cock the firing pin by means of a hand-operated fastening agent, for example a rotary knob, a rotary cap or a handle, only immediately before the intended detonation of the grenade. With the fastening agent it is possible to store in the firing pin by pre-tensioning at least one spring associated with it the energy required for the detonation of the grenade only when it is intended to detonate the grenade. Therefore, the grenade is only detonable immediately before its intended use. On the contrary, during the storage of the grenade at least the detonation equipment containing the firing pin is not yet detonable. Another possible embodiment provides for holding the rocker manually before and after actuation of the fastening agent, preferably manually. As long as, after cocking the firing pin, the rocker arm is clamped, a detonation of the grenade will not take place. Only when, after cocking the firing pin, the rocker arm is released, will detonation occur.

A hand-operated grenade to solve the aforementioned objective has the features of claim 4. In accordance with these, a coupling is provided that holds, in particular, holds the prestressed hammer together and keeps the rocker closed until the intentional detonation. The rocker arm fixes the firing pin coupling until the grenade is to be detonated. Releasing the rocker arm releases the coupling, whereby it can be automatically opened or released. The firing pin, at least a part of it, is released for the introduction of the detonation operation. By this configuration of grenade firing equipment, a permanently cocked firing pin is no longer required, because the firing pin is cocked by the firing pin at any time and/or when needed and is held in the cocked state until that the pomegranate should be used. When the rocker arm is released, the coupling, which is then automatically opened and/or released, allows a reliable release of at least a pre-tensioned part of the firing pin and a safe detonation of the grenade.

The invention provides for configuring the firing pin divided into parts. To hold the firing pin, the parts of it are joined by the coupling, while for the activation of the detonator they separate, being displaced by the spring the part of the firing pin to which the prestressed spring is directly associated and/or a part of the impulse and/or percussion coupling against the detonator, preferably a primer.

At least one coupling half has at least one oblique sliding surface. By means of this oblique sliding surface, the opening and separation of the coupling is automatically caused as soon as the rocker arm has been released and thus no longer holds the coupling halves. One coupling part detaches automatically from the other coupling part by sliding on the at least one oblique sliding surface. In this connection, the main part of the prestressed striker is released from the striker extension part held by the fastening agent.

An alternative design possibility of the grenade foresees that the main part of the firing pin moves axially on the extension piece of the same and, until the activation of the grenade, the main part preloaded by spring is coupled by means of at least one coupling body of detachable way with the extension piece. The at least one coupling body blocks the spring-loaded main part on the extension piece until the start of the grenade detonation operation. This removable lock is very reliable.

The locking of the main part in the extension piece is maintained by means of the at least one coupling body until the start of the detonation operation by means of a spring-loaded locking sleeve that at least partially surrounds the main part and allows displacement between the main part and the locking sleeve. If this relative displacement is effected, for example, by a longitudinally oriented movement of the spring-loaded locking sleeve, the at least one coupling body, preferably a ball, can remove the locking of the main part in the extension part, for example whereby the spring-loaded main part can impulsively collide, for example, with a primer from the detonation equipment and thus detonate the grenade.

The locking sleeve, in particular the spring-loaded locking sleeve, is non-displaceably held by the rocker arm until the rocker arm is released to start the detonation operation. In this way, the detonation operation can be specifically started without the activation of any other agent, exclusively by releasing the rocker arm.

By opening or separating the coupling, the prestressed firing pin or at least a part thereof can be released and thus the detonator can be activated. In particular, provision is made to keep the coupling closed after cocking of the firing pin until the firing pin is released. In this way, the coupling also serves to hold the hammer in place until it is to be activated. The activation of the hammer hammer is thus carried out in a simple and reliable way by automatically opening and separating the coupling after releasing the rocker arm.

The detachable coupling is conveniently arranged between the parts of the striker and, in particular, between a main part and an extension part thereof and/or is formed by both. The coupling thus serves for the temporary, preferably form-fitting, connection of the ends facing one another of the two parts of the striker. By means of this connection, the main part of the firing pin which is to be preloaded directly by means of the spring can be raised to the preloading of the spring and can be released by detachment from the coupling to cause the detonation of the grenade.

An advantageous possibility of improving the detachable coupling provides for it to be provided with a hook-and-loop connection. The hook-and-loop connection allows a form-fit coupling of the two coupling parts. For release, only one part of the hook-and-loop connection has to be unhooked from the other part of the hook-and-loop connection. In each case, a part of the hook-and-loop connection is associated with one end of the divided striker, and in particular with its main part and its extension part, preferably firmly.

Furthermore, it is conceivable to configure the coupling in such a way that the latching rocker can hold the coupling parts together in the closed direction, whereas, when the rocker is released, preferably without an active actuation of the rocker, the coupling can be disassembled and/or or to automatically divide the two parts or halves of the coupling configured, for example, as a latching connection by unlatching one part with respect to the other part, being able to separate from each other. The automatic release of the coupling allows the coupling to be separated or opened without the rocker arm having to be actively actuated to do so. Simply releasing the rocker arm is sufficient to release the coupling and release the spring-loaded main part of the firing pin with the coupling half associated with it for activation of the grenade's detonator, preferably its primer.

The fastening agent may be configured as a hand-actuated button or handle or a manually-actuated plug. Preferably, the clamping agent is formed by a rotary knob or a rotary plug, whereby an axial movement for hammering the striker can be generated by manual rotation. Such a fastening agent can be easily formed and works reliably.

Regardless of whether it is configured as a rotary knob, a rotary plug or a handle, the clamping agent can also be used to lock the rocker arm with the firing pin not yet cocked in its starting or rest position, preferably with dragging. shape. In this connection, the rocker arm with the firing pin not yet cocked is held in its starting or rest position without the danger that it may move in an uncontrolled manner and, in this connection, the grenade may be accidentally activated.

Another advantageous design possibility of the hand-operated grenade provides for a rotating cap preferably with an outer ring that holds the rocker arm that fixes the firing pin in its starting position. During actuation, in particular rotation and/or axial displacement, the rotating plug releases the rocker arm. The rocker arm is held before release preferably by hand so that the detonation operation can be started when the rocker arm is released. The rocker then pivots automatically due to the elastic force of the preloaded spring of the firing pin, by means of which the spring preloaded firing pin can initiate or activate the detonation operation.

Preferred embodiments of the invention are explained in more detail below with the aid of the drawing. In this, they show:

Figure 1 a central longitudinal section of a grenade according to a first embodiment, Figure 2 a detonation device for the grenade of Figure 1 with a non-cocked hammer,

Figure 3 the detonation equipment of figure 2 with hammer hammer,

Figure 4 the blasting rig of Figure 3 with actuated rocker arm and firing pin still cocked, Figure 5 the firing rig of Figure 4 with released hammer lock still fully cocked,

Figure 6 a fragment of the area of a coupling of two still-joined parts of the firing pin,

Figure 7 the coupling of Figure 6 at the moment of release of the firing pin parts, Figure 8 a view of the released and separated parts of the firing pin,

Figure 9 a central longitudinal section of a grenade with an uncocked hammer according to a second embodiment,

Figure 10 shows a detonation device for the grenade in Figure 9 with a hammered hammer,

Figure 11 the blasting set from Figure 10 with rocker arm actuated and firing pin still cocked, Figure 12 the firing set from Figure 11 with coupling released, but firing pin still fully cocked,

Figure 13 a perspective representation of the coupling of two still attached parts of the striker, Figure 14 a representation of the striker according to figure 13 in which the coupling is in a position at the moment of separation of the parts of the striker hammer, Figure 15 a central longitudinal section of a grenade with hammer not yet cocked of the detonation equipment according to a third example of embodiment,

Figure 16 the detonation equipment of figure 15 with hammer hammered,

Figure 17 the detonation equipment of figure 16 with actuated rocker arm, but still closed coupling of the hammer hammered,

Figure 18 the blasting set of Figure 17 with coupling released, but firing pin still cocked, Figure 19 a perspective and sectional representation of two parts of the firing pin still connected by a coupling, and

Figure 20 a representation analogous to figure 19 with coupling released at the moment of separation of the two parts of the striker.

Complete hand-operated grenades are shown in Figures 1, 9 and 15. These are hand-operated colored smoke grenades. Colored smoke grenades generate a visual signal upon activation, specifically colored smoke, eg red or orange smoke.

All the colored smoke grenades shown in the figures have a cup-like container 11 in which at least one pyrotechnic charge 12 of a substance that generates colored smoke is arranged. An upper front side of the container 11 has a central cup-like recess 13 with a central opening 14, preferably circular. The cup-like recess 13 on the upper front side of the container 11 serves for the partial accommodation of a blasting device 15. The blasting device 15 enters through the opening 14 into the recess 13 into the interior space 16 of the filled container 11 at least partially of a charge 12. An upper part of the detonation device 15 protrudes upwards relative to the upper front wall of the container 11. Via a locking connection 17 or also a thread, the detonation device 15 is connected preferably permanently by means of a central part with the recess 13 and thus also with the container 11.

Next, the differently configured colored smoke grenades shown in the figures are explained in detail in each case:

The colored grenade in Figures 1 to 9 has a detonation equipment 15 that has a detonation body 18, a plug-type slowing component 19 screwed into the lower end of the detonation body 18 and a rocker housing 20 placed on a upper end zone of the blasting body 18. The blasting body 18, the slowing component 19 and the rocker arm housing 20 are joined together to form a base component of the detonation set 15. The slowing component 19 screwed onto the lower end of the detonation body 18 contains a primer 21 at its end pointing towards the lower front side of the detonation body 18. In the smoke grenade 10 shown here, a slowdown set 22 and an ignition set 23 are provided below the bait 21. The slowdown set 22 and/or the ignition set 23 can be omitted if necessary. With the upper end region of the blasting body 18 extending through the recess 13 of the canister 11, the rocker arm housing 20 is suitably firmly attached. The rocker housing 20 is located for the most part outside the container 11, in particular it protrudes with respect to the upper front side of the container 11.

Centrally through the detonating body 18, a continuous channel 25 extends, in which a firing pin 26 is installed in a longitudinally movable manner, in the example of embodiment shown, axially upwards and downwards. A lower part of the continuous central channel 25 in the blasting body 18 has a cylindrical enlargement 27 in which a spring or, if applicable, also several springs is arranged, in the case of the illustrated embodiment being a spring spring. compression spring 28. The compression spring 28 is accommodated and guided in the extension 27 in such a way that it can be compressed without restriction. Through the compression spring 28 extends a stem 29 of the firing pin 26 (FIG. 8). At the free end of the stem 29 there is a larger support plate 30 on which a lower end of the compression spring 28 rests. Centrally below the support plate 30 is a point 31 projecting downwards or another lift. Alternatively, instead of the compression spring 28, a spring package of several disk springs with preferably added spring deflections and alternately oriented differently can also be provided.

The striker 26 is divided into parts. In the exemplary embodiment shown, the striker 26 is made up of a lower main part 32 and an upper extension part 33. On the lower main part 32 the compression spring 28 sits. are also found in the main part 32 of the firing pin 26. The main part 32 extends essentially axially displaceably through the channel 25 in the detonating body 18. The extension piece 33 extends essentially approximately centrally through the housing of rocker arm 20. The extension part 33 can be moved axially up and down in the rocker arm housing 20 and specifically exactly the same as the main part 32. The extension part 33 can also pivot in the rocker arm housing 20 slightly to one side.

In the rocker mount 20 there is a striker-independent clamping agent 26 which, in the exemplary embodiment shown, is designed as a rotary plug 34 open from below. The rotary cap 34 is placed from above on the part of the rocker housing 20 that protrudes from the container 11. The upper part of the rocker housing 20 on which the rotary cap 34 is located is provided with an outer and multi-circumferential helical groove 35 in which the corresponding projection enters, not shown in the figures, on the inside of the rotating cap 34. In this way, in the style of a screw, when rotating the rotating cap 34 on the rocker arm housing 20, the cap is raised axially swivel 34 with respect to rocker mount 20 or, if necessary, also lowers again by turning in the opposite direction. In this regard, as a result of a preferably articulated connection of an upper end 36 of the extension part 33 of the firing pin 26 with the cover wall of the rotating cap 34, when it rotates and the forward movement thus caused with respect to the rocker housing 20, the extension piece 33 is raised by the rotating plug 34 in the axial direction and, specifically, dragging the main part 32 of the striker 26 joined with the extension piece 33. In this way, the hammering of the striker 26 takes place. , compressing the compression spring 28 associated with the main part 32 of the striker 26 and resting on the support plate 30 and thus pretensioning itself.

A rocker arm 37 of the detonation device 15 is also connected to the rocker arm mount 20 so that it can pivot about a tangential and horizontal axis of rotation 31 . The axis of rotation 28 is located remotely adjacent to the extension piece 33 of the firing pin 26 which extends through the rocker housing 20. The axis of rotation 28 is located in a lateral radial slot 42 in the upper part of the housing. rocker arm 20 which is located outside the container 11.

In the exemplary embodiment shown, the rocker arm 37 is configured as an angle lever with a longer arm 39 and a shorter arm 40 connected to the former in one piece and at an angle of 90°. The horizontal axis of rotation 38 extends through the shorter arm 40, and specifically at a small distance from a heel 41 that protrudes at the free end of the arm 40. If the rocker arm 37 is not actuated (figures 1 to 3), the The shorter arm 40 runs horizontally radially on the upper front side of the container 11, while the longer arm 39 runs parallel to the longitudinal axis of the container 11, and specifically in such a way that it rests externally on the cylindrical lining of the container 11. or is slightly distanced from it (figure 1).

The main part 32 and the extension part 33 of the firing pin 26 are temporarily attached to each other. This union is preferably carried out by form-fitting. For this, in the exemplary embodiment shown, the main part 32 and the extension part 33 of the firing pin 26 are detachably connected to each other. In particular, the main part 32 and the extension part 33 are connected until the detonation equipment 15 is activated. The main part 32 and the extension part 33 of the firing pin 26 are connected in the example of embodiment shown. by means of a removable coupling 43. The two coupling halves 44 and 45 of this coupling 43 are firmly arranged at the opposite adjacent ends of the main part 32 and the extension piece 33, preferably in one piece.

The coupling 43 and its coupling parts 44 and 45 are shown in more detail in figures 6 to 8. In this connection, figure 8 shows the main part 32 and the extension part 33 of the firing pin 26 for activating the smoke grenade. color 10 with coupling parts 44 and 45 separated from each other, i.e. with separate coupling 43. The coupling part 44 at the lower end of the extension part 33 has a kind of housing 46 which, in the example of embodiment shown, is composed of a partially cylindrical body provided on one side with a flattening 47. The flattening 47 runs parallel to the longitudinal central axis of this partially cylindrical body approximately in the vicinity of the longitudinal central axis, the width of the casing 46 being, starting from the flattening, slightly larger than half the diameter of the cylindrical basic shape of the housing 46. Starting from the vertical flattening 47, in the housing 46 there is an approximately rectangular recess 48 which follows downwards, that is to say towards the main part 32, a central and perpendicular groove 49 which runs from the rectangular recess 48 continuously to the lower front side of the casing 46. In the two sides adjacent to the groove 49, the lower wall of the recess 48 is chamfered to form two equal sliding surfaces 50 on both sides of the groove 49. The sliding surfaces 50 run with respect to the horizontal at an angle of more than 45 °, preferably from 50° to 60°.

The coupling part 45 at the upper free end of the main part 32 of the firing pin 26 is configured in the shape of a flattened symmetrical hammer head. The shank 29 of the firing pin 26 or a shank forming a part thereof of the main part 32 is followed by a narrow connecting section 51 which is somewhat narrower than the slot 49. At the free end of the connecting section 51, the piece The coupling part 45 has an upper extension 52. This upper extension 52 is somewhat narrower than the recess 48 in the housing 46 and has a thickness that is somewhat less than the depth 48 in the coupling part 44. Due to the upper extension 52 disposed on the joint section 51, the coupling part 45 has a T-shaped design (viewed from the front). Below, in the upper extension 52, there are therefore, located on both sides next to the connecting section 51, support surfaces 53 under the protruding areas of the upper extension 52. These support surfaces 53 run horizontally and at an angle with respect to the flattening 47 in the coupling part 44. These support surfaces 53 correspond to the oblique sliding surfaces 50 on the underside of the recess 48 in the coupling part 44. However, it is also conceivable to design the surfaces oblique as well. support surfaces 53. For example, the support surfaces 53 can have the same slope as the sliding surfaces 50.

In the following, the method according to the invention is explained in relation to the aforementioned colored smoke grenade 10:

The method according to the invention envisages cocking the firing pin 26 only before the activation of the colored smoke grenade 10. For this, the rocker arm 37 is held by hand in the position shown in figures 1 to 3, in such a way that the longer arm 39 of the rocker 37 rests, for example, laterally on the wall of the container 11. After the firing pin 26 is cocked, the colored smoke grenade 10 is ready for use, the rocker retaining 37 the firing pin 26 still locked in the cocked state.

To activate the colored smoke grenade 10, only the rocker 37 has to be released. Afterwards, the prestressed compression spring 28 moves the firing pin 26, but preferably only its main part 32, the compression spring 28 moving it axially downwards against the primer 21. In this regard, the prestressed striker 26 pivots the rocker 37 around the axis of rotation 38 and in this way the travel of the striker 26 to the strike 21 is released. Due to the energy stored in the compression spring 28, the striker 26 moves by impulse with high speed axially in the direction of the primer 21, the tip 31 colliding under the support plate 30 of the striker 26 with such a high energy against the primer 21 that it is activated and triggers the set of slowdown 22 of detonation equipment 15.

Figures 1 to 5 show the individual movement sequences for the cocking of the firing pin 26, by means of which the colored smoke grenade 10 is practically "armed" for the "detonation" of the colored smoke grenade 10 with the detonation equipment 15 according to the invention described above.

FIG. 1 shows the entire colored smoke grenade 10 and FIG. 2 shows only the detonation device 15 of the colored smoke grenade 10 in the starting or resting state. Color 10 smoke grenade is still, so to speak, "unarmed". In this starting position, the firing pin 26 is not yet cocked. The striker 26 is still in its lower starting position with the compression spring 28 not yet compressed or not significantly compressed. The rocker arm 37 does not (yet) need to be secured in this initial position with the firing pin 26 not yet cocked. Consequently, a shear pin or shear ring is not required to lock the rocker arm 37 in the colored smoke grenade 10 according to the invention. In the starting position of the colored smoke grenade 10, the rotating plug 34 which serves as a holding agent for the firing pin 26 is still in its lower starting position. In this regard, the rotating cap 34 can rest on the shorter horizontal arm 40 of the rocker arm 37. This does not serve the purpose of securing the colored smoke grenade 10 against a unintentional activation, but only so that the unsecured rocker arm 37 cannot pivot uncontrollably about the axis of rotation 38 and thus be damaged. In the starting position of the colored smoke grenade 10, also the main part 32 and the extension piece 33 of the firing pin 26 are still connected to each other by means of the closed coupling 43.

Figure 3 shows the first stage of the activation of the detonation equipment 15. In this sense, the rocker 37 is held by hand in its starting position with the long arm 39 resting externally on the wall of the container 11, in particular it is pressed against the outer wall of the container 11. The fastening agent is then actuated by manually rotating the rotating cap 34 forming it on the top of the rocker housing 20, thus moving the rotating cap 34 to the position shown in Figure 3 with respect to to the top of the rocker arm housing 20 upwards. In this sense, the firing pin 26 is cocked by raising the entire firing pin 26 with the main part 32 attached by means of the coupling 43 and the extension piece 33 against the force of the compression spring 28. In this connection, compression and tensioning occurs. of the compression spring 28. As the striker 26 rises, the partially cylindrical housing 46 of the coupling part 44 which is located at the lower end of the extension piece 33 of the striker 26 comes into contact with the heel 41 of the retained rocker arm 37 or slides along this heel 41. By means of a corresponding slope of the spiral groove 35 in the upper part of the rocker housing 20, in which at least one protrusion of the rotating cap 34 engages, a self-locking of the cap is generated swivel 34 that prevents it from inadvertently turning back with the cocked hammer 26, such that the swivel cap 34 locks the hammer 26 in its cocked position shown in Fig. 3. Furthermore, the rocker arm 37 still held in the position according to figure 3 holds the coupling 43 and thus the connection of the main part 32 and the extension piece 33 of the firing pin 26 and, in this way, the striker 26 is blocked by the rocker arm 37 even in its prestressed state.

Figure 4 shows an intermediate position of the detonation equipment 15 at the beginning of the release of the detonation operation of the colored smoke grenade 10. Releasing the rocker arm 37, it pivots around the axis of rotation 38 according to the representation in the figures clockwise, whereby the coupling 43 can be released automatically. This happens by sliding of the bearing surfaces 53 under the upper extension 52 of the main part 32 of the coupling part 45 by the oblique sliding surfaces 50 of the coupling part 44 of the extension part 33. In this way, the upper extension 52 of the coupling part 45 moves out of the recess 48 in the housing 46 of the coupling part 44, the lower end of the extension part 33 of the firing pin 26 hanging from the rotating plug 34 being deflected laterally in the direction of the heel 41 at the end of the arm 40 of the rocker arm 37. In this sense, there is a release of the coupling 43 and, in this way, practically a "tearing" of the joint between the extension piece 33 and the main part 32 of the striker 26. The lateral movement of at least the casing 46 of the coupling piece 44 at the lower end of the extension piece 33 takes place in the open slot 42 of the rocker arm housing 20, and n in which also the shorter arm 40 of the rocker arm 37 is rotatably mounted about the axis of rotation 38. As the housing 46 of the coupling part 44 moves laterally at the lower end of the extension part 33, the housing 46 rests on the heel 41 of the shorter arm 40 of rocker arm 37 and can be locked in the position shown in figure 5 and pivoted by the container 11 of the colored smoke grenade 10.

As a result of the separation of the coupling 43 and the thus generated "tearing" of the main part 32 of the firing pin 26 with respect to the extension piece 33 thereof, the prestressed compression spring 28 moves the main part 32 of the firing pin axially downwards. 26 by impulse and, in this connection, the tip 31 under the support plate 30 of the main part 32 of the firing pin 26 hits the primer 21 from above. This triggers or releases the primer 21 and starts the detonation of the grenade. of colored smoke 10. Due to the splitting of the firing pin 26 generated as a result of the separation of the coupling 43, the prestressed compression spring 28 moves downwards only the lower main part 32 of the firing pin 26 per impulse. The extension piece 33 does not perform this movement. The rotating cap 34 retains it in such a way that the extension piece 33 when the colored smoke grenade 10 is detonated does not move with the main part 32 of the firing pin 26 moved by the compression spring 28 axially downwards.

The color smoke grenade 54 of Figures 9 to 14 corresponds primarily to the color smoke grenade 10 described above. Also in the case of the colored smoke grenade 54, the firing pin 55 is only activated immediately before use, specifically before detonation, by elastic prestressing. Basically, the color smoke grenade 54 is structured the same as the color smoke grenade 10. The pre-tension of the firing pin 55 and the release of its coupling 56 for the actuation of the primer 21 is carried out exactly the same as in the color smoke grenade. color smoke grenade 10. The procedure according to the device corresponds to the color smoke grenade 54 with the procedure described for the color smoke grenade 10. Due to the essential similarities, they are used for the same parts the same references.

The essential differences of the colored smoke grenade 54 with respect to the colored smoke grenade 10 consist in the different configuration of the coupling 56 for the union of the two coupling parts before detonation, namely a main part 57 and an extension piece 58, of the striker 55 and the generation of the spring pretension of the striker 55 by means of a pack of several disk springs 59 preferably same. In the exemplary embodiment shown, six identical disk springs 59 are provided. If necessary - for example, to change the spring travel of the spring pack - a larger or smaller number of disc springs 59 can be used. The corresponding disc springs 59 are consecutive with different orientation, by means of which which the entire spring travel of the spring package amounts to the sum of the spring travels of each individual disk spring 59. However, other orientations of the disk springs 59, in particular mixed, are also conceivable. It is likewise conceivable to equip the colored smoke grenade 54 with other springs for preloading the firing pin 55, for example at least one compression spring 28.

The coupling 56 of the firing pin 55 is formed by coupling hooks 60 corresponding to each other at the mutually pointing ends of the extension piece 58 on the one hand and of the main part 57 on the other. The mating hooks 60 are configured the same, but have different orientations so that they complement each other. Each coupling hook 60 has a lug 61, which is located at its end, and a groove 62 that follows in the longitudinal direction of the main part 57 or of the extension piece 58. Both the lugs 61 and the grooves 62 of the two coupling hooks 60 are provided with the same profile, the heel 61 of the extension piece 58 filling a groove 62 of the main part 57 and vice versa. At the transition of the respective bead 61 into the groove 62, each coupling hook 60 has an obliquely oriented sliding surface 63, which is configured obliquely oriented in such a way that the coupling 56 can be automatically released by protruding the bead 61 out of the openings. slots 62 of the main part 57 and of the extension piece 58 associated with them. In this way, the coupling 56 can be released automatically as soon as a required tilting movement of the extension piece 58 relative to the main part 57 is allowed by means of the rocker 37.

The colored smoke grenade 54 also has a detonation device 15 with a rocker arm housing 20 in which or next to which the rocker arm 37 is pivotally mounted about a horizontal axis of rotation 38 running transversely to the axis of rotation. longitudinal center of the colored smoke grenade 54. On the rocker arm housing 20 a rotating plug 34 is placed, which can rotate relative to the rocker arm housing 20 and, in this respect, performs in the manner of a screw a longitudinal displacement about the axis longitudinal center of the colored smoke grenade 54 which is oriented opposite to the bait 21. In this lifting movement (refer to Fig. 10) of the rotary plug 34, the extension piece 58 installed on that of the firing pin 55 also moves, whereby its distance to the bait 21 increases. As a result of the coupling 56, in this sense still closed, between the main part 57 and the extension piece 58, with the movement The lifting action of the extension piece 58 also raises the main part 57 and thus the entire striker 55. In this connection, a compression of the disk springs 59 is effected and thus a pre-tension spring-loaded firing pin 55, whereby the firing pin is now in a position ready for detonation, as shown in figures 10 and 11.

It can also be seen from figure 10 that the rotating cap 34 has a slot 64 open downwards which, with the rotating cap 34 rotated to pre-tension the firing pin 55, releases an upper part of the rocker arm 37 which starts from the axis of rotation 38, in such a way that so that it is now no longer overlapped by the rotating cap 34 and can thus pivot with hammer hammer 55 about the axis of rotation 38 (FIG. 11).

Before releasing the rocker arm 37 by turning the twist cap 34, bringing the slot 64 into overlap with the upper area of the rocker arm 37, the rocker arm 37 must be held by hand to lock the pretensioned striker 55 and hold the coupling 56 in its closed position. In this regard, a heel-like projection 65 at the upper end of the rocker arm 37 still rests laterally in the area of the coupling 56 on the extension part 58 of the striker 55, and specifically at a point that prevents automatic opening of the coupling 56 with rocker arm 37 retained.

To detonate the colored smoke grenade 54, it is only necessary to release the rocker 37. Afterwards, the locking of the coupling 56 is automatically released by pivoting the rocker 37 about its axis of rotation 38 (FIG. 11). The release of the coupling 56 is effected by a sliding of the oblique sliding surfaces 63 of the two coupling hooks 60, by means of which the butt 61 at the lower end of the extension part 58 of the striker 55 comes out of the socket. corresponding slot 62 of the coupling hook 60 in the upper part of the main part 57 by pivoting the extension part 58 of the striker 55 pivotally installed in the rotating cap 34. In this way, the longitudinal central axis of the part of the extension 58 is moved away from the longitudinal central axis of the main part 57 of the firing pin 55 and the form fit connection of the extension part 58 with the main part 57 by opening the coupling 56. In this way, as a result of the pre -spring tension of the disk springs 59, the main part 57 of the firing pin 55 can be "fired" by impulse, oriented longitudinally against the primer 21 and, in this way, In the first place, the detonation of the colored smoke grenade 54 (figures 12 and 14) will take place.

Figures 15 to 20 show a colored smoke grenade 66 whose detonation operates in the same way as the previously described grenades according to the method according to the invention. A firing pin 67 of the colored smoke grenade 66 is also only spring-loaded shortly before its detonation.

To the extent that the colored smoke grenade 66 matches the colored smoke grenades described above, the same reference numerals are used. As such, only the differences of the Color 66 Smoke Grenade from the Color 10 and Color 54 Smoke Grenades are covered below.

The detonation device 15 of the colored smoke grenade 66 has a rocker arm housing 68 with a horizontal axis of rotation 38 running transversely to the central longitudinal axis of the colored smoke grenade 66 for the rocker arm 37. On the On the rocker housing 68, a rotary plug 34 is attached which can rotate relative to the rocker housing 68 and, in this respect, can be displaced axially about the longitudinal central axis, and specifically in such a way that the distance to the bait 21 is increased. (see figures 15 and 16). Inside the rocker housing 68, the firing pin 67 is mounted in an axially displaceable manner on the longitudinal central axis of the colored smoke grenade 66. The firing pin 67 is divided into two parts in this case as well, being composed of a main part 69 and an extension piece 70 connected by means of its upper end to the rotating cap 34. Both are connected to each other in a positive way by means of a coupling 71 until the activation of the detonation operation of the colored smoke grenade 66, preferably coupled together. This is achieved by at least one coupling body, which in the illustrated embodiment is formed by a ball 72. If necessary, several, preferably identical, balls 72 or any other coupling bodies can be provided.

In the lower end zone of the extension piece 70 of the striker 67 there is a perimeter narrowing 73 whose length, seen in the longitudinal direction of the extension piece 70, is greater than the diameter of the ball 72, preferably between two and four times greater than the diameter of the ball 72. The depth of the constriction 73 is less than the diameter of the ball 72, specifically between 20% and 50% of the diameter of the ball 72.

The main part 69 of the firing pin 67 is cup-shaped with a circular ring-shaped sleeve section 74 which is closed below by means of a base 75, namely on its lower front side which points towards the bait 21. Low the base 75, there is a detonation projection 76 preferably central. In the sleeve section 74 there is a free space, preferably a through hole 77 oriented transversely for the accommodation of the larger part of the ball 72, which is located next to the narrowing 73 in the extension piece 70. The through hole 77 is somewhat larger than the diameter of the ball 72. The wall thickness of the sleeve section 74 is chosen such that the through hole 77 extending transversely through it is of sufficient length to accommodate most of the ball 72 that does not have space in the narrowing 73. In the example of embodiment shown, the through hole 77 for the accommodation of the greater part of the ball 72 is located in the sleeve section 74 in the upper end zone of the itself, in short, under its ring-shaped open front surface 78 . The inner diameter of the sleeve section 74 of the main part 69 of the firing pin 67 is dimensioned in such a way that the sleeve section 74 is freely movable telescopically displaceable in the longitudinal direction at the lower end of the extension part 30.

At least the cup-shaped main part 69 of the firing pin 67 is surrounded by a locking sleeve 79. The locking sleeve 79 has a length that is at least as great as the length of the sleeve section 74 of the main part 69. added the path that the main part 69 takes to hammer the hammer 67. The inner diameter of the locking sleeve 79 is stepped, with the locking sleeve 79 presenting a larger internal diameter in the upper end area and, due to this, a perimeter enlargement 80. The depth of the enlargement 80 and thus the inner diameter of the locking sleeve 79 in the area of the enlargement 80 are dimensioned such that when the through hole 77 for the ball 72 is in the area of the locking sleeve enlargement 79, the ball 72 can find complete accommodation in the area of the enlargement 80 of the locking sleeve 79 and the through hole 77 in the sleeve section 74 of the main part. head 69 of the striker 67 and therefore the ball 72 no longer plunges into the constriction 73 in the extension piece 70 of the striker 67 (FIG. 20).

The length of the enlargement 80 starting from the circular ring-shaped upper front surface of the locking sleeve 79 is dimensioned in such a way that the ball 72 only reaches the area of the enlargement 80 for the detonation of the smoke grenade. color 66. Before detonation, the ball 72 is still in the area of an inner diameter of the locking sleeve 79 adapted to the outer diameter of the sleeve section 74 of the main part 69 and smaller compared to the inner diameter in the area of the enlargement 80. Since the inner diameter of the locking sleeve 79 corresponds below the enlargement 80 to the outer diameter of the sleeve section 74 of the main part 69 of the striker 67, the ball 72 does not protrude out of the through hole 77 in the sleeve section 74, but inwards, where the protruding part of the ball 72 finds accommodation in the narrowing 73 in the lower end area of the ex piece. tension 70 of the striker 67 (FIG. 19). In this position of the locking sleeve 69 relative to the sleeve section 74 of the main part 69 and to the extension piece 70 of the firing pin 67, the coupling 71 partially formed by the ball 72 is closed and therefore the extension piece 70 is positively attached to the main part 69 of the striker 67. However, since the constriction 73 at the lower end of the extension piece 70 is longer than the diameter of the ball 72, with the close coupling 71 a relative movement can take place between the piece of extension 70 and the main part 69 without, in this respect, the ball 72 being able to reach from the through hole 77 of the sleeve section 74 of the main part 69 to the enlargement 80 of the locking sleeve 79 and, in this way, the main part 69 can be released from extension part 70 of firing pin 67 by opening coupling 71.

The firing pin 67 and the locking sleeve 79 are elastically prestressed by their own independent springs in the direction of the primer 21. In the case of the colored smoke grenade 66 shown here, the two springs are configured as compression springs 81 and 82. The compression springs 82 and 82 have different diameters. The smaller compression spring 81 is intended to pre-tension the firing pin 67. The larger compression spring 82, on the other hand, is associated with the locking sleeve 79. The two compression springs 81 and 82 are supported under a front wall. 83 of the rocker arm housing 68. The front wall 83 delimits on the upper side a cylindrical receiving space 84 for the locking sleeve 79 in the rocker support 68. In this receiving space 84, the locking sleeve 79 can move axially, like the firing pin 67 partially surrounded by the blocking sleeve 79. The front wall 83 has a through hole 85 in the center for the passage of an upper end area of the extension piece 70 of the firing pin 67. In this way , the upper end area of the extension piece 70 can be guided towards the twist cap 34 and connected with it. This joint is designed in such a way that a relative movement is possible between the extension part 70 of the firing pin 67 and the rotating cap 34.

At the extreme end, the large compression spring 62 bears against the upper front surface of the locking sleeve 79 (FIG. 18). The smaller diameter compression spring 81 bears with its lower end on the upper front surface 78 of the sleeve section 74 of the main part 69 of the firing pin 67.

The locking sleeve 79 has a peripheral diameter reduction 87 in the lower end area. A heel 88 of the rocker arm 37 fits into this, projecting inward relative to the axis of rotation 38 in the direction of the longitudinal central axis. In this way, the rocker arm 37 holds the locking sleeve 79 in its initial pivoted position on the container 11 in its prestressed initial position by means of the compression spring 82 in the direction of the bait 21 (FIGS. 15 and 16). In other words, the locking sleeve 79 in the folded position on the container 11 of the rocker arm 37 cannot move automatically about the longitudinal center axis of the colored smoke grenade 66 in the direction of the bait due to its spring pretension. twenty-one.

The rocker arm 37 in turn is secured by the rotary cap 34, which is still in its lower starting position (FIG. 15), against inadvertent pivoting of the container 11, an annular lower collar 89 of the rotary cap 34 resting on it. the upper part on a short arm 90 of the rocker 37 through which the axis of rotation 38 runs. In this way, this short arm 90, in the starting position of the rocker 37 pivoted on the container 11, is fixed or locked with shape drag in an approximately horizontal position (figure 15). In this sense, only the compression spring 82 associated with the locking sleeve 79 is elastically prestressed, but not the compression spring 81 associated with the striker 67. The compression spring 81 associated with the main part 69 of the striker 67 and smaller in size in the diameter it is in the starting position of rocker arm 37 and rotary plug 34 still essentially without pretension, ie unloaded.

The rotary cap 34 is rotatably connected to an upper cylindrical extension of the rocker arm mount 68 by means of a movement thread, not shown in the figures. The movement thread is designed in such a way that when the rotary cap 34 the cylindrical extension of the rocker housing 68, also raises the rotating cap 34 in the longitudinal axis of the colored smoke grenade 66 and thus moves away from the bait 21 together with the firing pin 67 fixed on it. The distance from the firing pin 67 to the primer 21 is thus increased by turning the rotating plug 34. In this regard, as a result of the compression spring 81, which bears internally on the cylindrical extension of the rocker arm housing 68 and on the main part 69 of the striker 67, and from the temporary joint produced by the coupling 71 of the main part 69 with the extension piece 70, each striker 67 is lifted and, in this connection, the compression spring 81 associated with it is prestressed. The firing pin 67 thus reaches its prestressed position ready for detonation (FIG. 16). By manually retaining the rocker 37 with screw-raised twist cap 34 and thus pretensioned striker 67 in its folded starting position in the container 11 (FIG. 16), the cocked striker 67 is still held in its cocked position.

Only when it is intended to detonate the colored smoke grenade 66 is the rocker arm 37 released. As a result of the spring pre-tension of the locking sleeve 79 which rests on the heel 88 of the rocker arm 37, the rocker arm 37 pivots about its horizontal axis of rotation 38 oriented transversely and, specifically in the representations of figures 15 to 18, in the clockwise direction. In this connection, the heel 88 of the rocker arm 37 protrudes from the area of the lower diameter reduction 87 on the outer side of the locking sleeve 79, whereby the locking sleeve 79, as a result of pre-tension by means of the locking spring, compression 82, it can be displaced axially about the longitudinal central axis of the colored smoke grenade 66 in the direction of the bait 21. In this regard, first of all, by means of the closed coupling 71, the coupling is maintained with drag in a positive way. the cup-shaped main part 69 at the lower end of the extension part 70 of the firing pin 67 by means of the at least one ball 72 of the coupling 71 (figures 17 and 18).

As a result of the downward movement of the locking sleeve 79, the ball 72 of the coupling 71 reaches the areas of the enlargement 80 of the inner diameter of the locking sleeve 79. The ball 72 thus moves outwards, whereby the part of the ball 72 that previously entered the narrowing 73 of the extension piece 70 of the firing pin 67 comes out of the narrowing 73, finding an opposite part at least as large as the ball 72 housing in the enlargement 80 of the blocking sleeve 79 ( figures 18 and 20). In this way, the coupling 71 is opened and the main part 69 of the cup-shaped striker 67 is separated from the extension piece 70 thereof. As a result of the spring pretension caused by the compression spring 81 of the main part 69, it can now be thrown or snapped along the longitudinal direction of the central longitudinal axis of the colored smoke grenade. 66 from above on the bait 21 and, in this way, detonate the colored smoke grenade 66.

Reference list:

10 Colored Smoke Grenade 52 Upper Extension

11 Container 53 Contact surface

12 Charge 54 Colored Smoke Grenade

13 Rebate 55 Striker

14 Opening 56 Coupling

15 Blasting equipment 57 Main part

16 Interior space 58 Extension piece

17 Locking recess 59 Disc spring

18 Firing Body 60 Coupling Hook

19 Slow Component 61 Heel

20 Rocker arm housing 62 Slot

21 Bait 63 Slip surface

22 Slow Set 64 Slot

23 Ignition set 65 Outgoing

24 Upper front side 66 Colored smoke grenade

25 Channel 67 Striker

26 Striker 68 Rocker Arm Housing

27 Extension 69 Main part

28 Compression spring 70 Extension piece

29 Stem 71 Coupling

30 Support plate 72 Ball

31 Tip 73 Taper

32 Main part 74 Sleeve section

33 Extension piece 75 Base

(continuation)

Swivel plug 76 Blasting lug

Slot 77 Through Hole

Top end 78 Front surface

Rocker arm 79 Lock sleeve

Axis of rotation 80 Magnification

Arm 81 Compression spring (small) Arm 82 Compression spring (large) Bead 83 Front wall

Slot 84 Accomodation space Coupling 85 Through hole

Coupling part 86 Front surface

Coupling part 87 Diameter reduction Casing 88 Bead

Flattening 89 Necklace

Rebate 90 Short arm

Slot 101 Slot

sliding surface

Union Section

Claims (14)

1. Procedure for activating a grenade, releasing a two-part hammer (26, 55, 67) prestressed by a spring when releasing a rocker arm (37), the hammer (26, 55, 67) being hammered with the retention of the rocker arm (37), the cocked firing pin (26, 55, 67) being fixed by the retained rocker arm (37) and in this respect being locked in the cocked state by a close coupling (43, 56, 71) between the parts of the firing pin (26, 55, 67), the blocking of the cocked firing pin (26, 55, 67) being suppressed when the rocker arm (37) is released, and in this respect a detonator of at least one charge (12) that causes a visual and/or acoustic effect or a detonation, releasing, when the rocker arm (37) is released, the coupling (43, 56) of the striker (26, 55) automatically and thus activating the striker (26, 55) prestressed by spring for activation of the load (12), or because the hammer lock hammered (26, 55), tra If the rocker arm (37) is released, it is automatically released by opening and automatically separating the coupling (43, 56) as a result of the spring pretension of the striker (26, 55), and in this respect the rocker arm (37) pivots automatically by the elastic force of the prestressed spring of the firing pin (26, 55) to a position that releases the coupling (43, 56), or by maintaining a lock of a main part (69) in an extension part (70) of the firing pin ( 67) by means of at least one coupling body until the introduction of the detonation operation by means of a locking sleeve (79) prestressed by spring that surrounds at least partially the main part (69) and allows a relative movement between the main part (69 ) and the locking sleeve (79) and the spring-loaded locking sleeve (79) being held by the rocker arm (37) so that it cannot move longitudinally until the rocker arm (37) is released to enter the opera detonation tion. Method according to claim 1, characterized in that the firing pin (26, 55, 67) is hammered by a manually actuatable clamping agent, preferably only before the intended introduction of the grenade detonation. 3. Method according to claim 1 or 2, characterized in that the rocker arm (37) is held manually, preferably by hand, before actuation of the fixing agent for holding the striker (26, 55, 67). 4. Hand-actuated grenade with a firing pin (26, 55, 67) with a main part (32, 57, 69) and an extension piece (33, 58, 70) to activate a detonator for at least one charge (12 ) that causes a visual and/or acoustic effect or an explosion, with a fastening agent associated with the firing pin (26, 55, 67) for pre-tensioning the firing pin (26, 55, 67) and with a rocker (37) for the release of the spring-loaded striker (26, 55, 67), a removable coupling (43, 56) being provided which joins parts of the two-part striker (26, 55) in the prestressed state between the striker parts (26). , 55) that can be released by the rocker arm (37) in the opening direction, with either the coupling (43, 56) having coupling halves that can be held together by the retained rocker arm (37), which has at least one coupling half an oblique sliding surface (50) which, after releasing the rocker arm (37), causes automatic opening and separation of the coupling (43, 56), or being associated to the main part (69) of the striker (67) configured in two parts at least one spring for holding the striker (67), being able to lock the main part (69) in the part of extension (70) by means of at least one coupling body and this locking being maintained until the initiation of the detonation operation by means of a locking sleeve (79) prestressed by spring, which surrounds at least partially the main part (69) and allows a relative displacement between the main part (69) and the blocking sleeve (79), holding the rocker arm (37) in a longitudinally non-movable manner until the blocking sleeve (79) is released for the introduction of the detonation operation, prestressed by spring, and the rocker arm (37) being able to pivot around a horizontal axis of rotation (38) aligned transversely when the rocker arm (37) is released as a result of the spring pre-tension of the locking sleeve (79) which is ap oya on a heel (88) of the rocker arm (37). 5. Grenade according to claim 4, characterized in that the firing pin (26, 55, 67) has the coupling (43, 56, 71), preferably the coupling (43, 56, 71) being part of the firing pin (26, 55, 67). 6. Grenade according to claim 4 or 5, characterized in that the coupling (43, 56, 71) is detachable, preferably automatically detachable, and/or the coupling (43, 56, 71) is closed at the still locked state of the hammered striker (26, 55, 67), preferably kept closed by the retained rocker arm (37), and the coupling (43, 56, 71) can be disassembled or separated to release the hammered striker (26, 55, 67), in particular by releasing the rocker arm (37). Grenade according to one of claims 4 to 6, characterized in that the detachable two-part coupling (43, 56, 71) is formed between the main part (32, 57, 69) and the extension part (33, 58). , 70) of the striker (26, 55, 67). Grenade according to one of Claims 4 to 7, characterized in that the main part (69) is spring-loaded in the direction of the detonator and the main part (69) can be coupled by means of at least the coupling body. to the extension part (70) of the firing pin (67) until the detonator is activated. 9. Grenade according to claim 8, characterized in that , in a lower end area of the extension piece (70) of the firing pin (67), a narrowing (73) is arranged for a part of the at least one coupling body, and a sleeve section 74 of the main part 69 has a notch for the other part or each coupling body. 10. Grenade according to claim 8 or 9, characterized in that a final section of the extension piece (70) and/or at least one upper section of the main part (69) of the firing pin (67) is surrounded by the sleeve of lock (79) prestressed relative to it, preferably in the direction of the detonator. Grenade according to claim 10, characterized in that the locking sleeve (79) can be fixed by the rocker arm (37) held in a state that holds the main part (69) and the extension part (70) of the firing pin together. (67) by means of the at least one coupling body, preferably against its spring pretension. 12. Grenade according to claim 4, characterized in that , when the rocker arm (37) is released, the blocking sleeve (79) can be moved longitudinally by the at least one prestressed spring associated with it in the direction of the detonator relative to the firing pin ( 67) to release the coupling that is effected by means of the at least one coupling body between the main part (69) and the extension part (70) of the striker (67). 13. Grenade according to at least one of claims 4 to 12, characterized in that a rotating cap (34) is provided with an outer ring that holds the rocker (37) that fixes the firing pin (26, 55, 67) in its initial position. ) and releases rocker arm (37) in a modified firing position relative to rocker arm (37). 14. Grenade according to claim 13, characterized in that the rocker arm (37) is pivotally installed about a transversely aligned axis of rotation (38) in a rocker arm housing (20, 68) and/or on the housing With an externally cylindrical rocker arm (20, 68), the rotary cap (34) with its outer ring is installed in a rotatable manner and, in order to prestress the at least one spring associated with the striker (26, 55, 67), in an axially displaceable manner.