DE1188985B - Impact fuse for bullets without twist - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

Number:
File number:
Registration date:
Display day:

F 071

German class: 72 i-3/06

1188 985
F36020Ic / 72i
February 14, 1962
March 11, 1965

Impact fuses are known for non-twist projectiles in which the selection for the setting is on Instantaneous or delay ignition by twisting the with a cylindrical in the capsule housing rotatable extension provided projectile tip over the detonator fuse takes place. In this case, axially displaceable squib carriers are provided to close the flame shut-off valve in the To lock the safety position.

According to the invention is compared to these ίο Known percussion fuze created a significant improvement in that the capsule fuse comprises a flame gate valve containing two different transfer pills, which in the the rotational position of the projectile tip forming the securing position is immovably stored and by turning the tip of the projectile by 90 ° in one direction or the other from the safety position from a spring-loaded piston arranged in an outer radial bearing in one in the cylinder Extension arranged diametrical recess is slidable and slides in this until he one of the two transfer pills arranged in the flame shut-off valve with the axis of the detonator Aligns according to the actuation selection according to the direction of the made Twist of the bullet tip.

According to the further invention, the locking of the flame shut-off valve takes place in the safety position in that the lower end of an extension of the squib support in one in the middle of the upper part of the flame gate valve arranged recess engages and in the direction of largest expansion of the slide on both sides of the recess at the same distance from this one each Recess for receiving the transfer pills is arranged.

An embodiment of the invention is shown in the drawings. It shows

F i g. 1 a longitudinal section through the detonator at rest,

F i g. 2 is a partial section along the detonator at right angles to FIG. 1,

F i g. 3 a longitudinal section through the detonator prepared for actuation,

F i g. 4 is a partial section along the detonator at right angles to FIG. 3,

F i g. 5 shows a longitudinal section through the actuated detonator and

F i g. 6 is a partial section along the detonator at right angles to FIG. 5,

F i g. 1 a, 2 a, 4 a, 5 a, 6 a Sections along the lines of impact fuse for bullets without twist

Applicant:

Societä per Azioni Fratelli Borletti, Milan
(Italy)

Representative:

Dipl.-Ing. F. Reichmann, patent attorney,

Erlangen, Anton-Bruckner-Str. 21

Named as inventor:

Umberto Spinelli, Milan (Italy)

Claimed priority:

Italy of February 23, 1961 (10 706)

I-I, H-II, IV-IV, V-V, VI-VI in Figs. 1, 2, 4, 5 or 6.

The igniter consists essentially of a capsule housing 1 (Fig. 1), the lower part with an external thread intended for screwing onto the muzzle of the projectile and a detonator 2 is provided, and the bullet tip 3 rotatably mounted in the housing 1. The insert contains a small percussion piston 4, a compression spring 5, a movement retarder 6 as a path safety device, a firing pin 7, a toothed slide 8, a small piston 9 with a compression spring 10 for actuating the toothed Slide, a squib carrier 11 with the squib 12, a spring 13 and an inertia Pin 14 with compression spring 15 and expansion sleeve 16. Between the squib support 11 and the Primer 12 is the flame gate valve 17 (Fig. 1 and 2), in which a transfer pill

18 for momentary actuation, a transfer pill

19 for delay and locking pins 20 with associated compression spring 21 are included. The flame gate valve 17 is arranged in a radial recess of the capsule housing 1 by one Control piston 22 actuated with compression spring 23.

The bullet tip3 is on the body with With the aid of a pin 24 carried by the housing 1, which pin engages in a groove 24 'formed in a semicircle on the circumference of the projectile tip 3.

As a result, the projectile tip can be rotated relative to the housing 1 and adjusted so that the

509 518/22

Marking O of the insert 3 corresponds to the reference character R of the housing 1, in such a way that these points are each diametrically opposite each other symmetrically to the safety position S (FIG. 2, 4, 6). These two positions correspond to the positions for the delay or momentary actuation of the percussion fuse.

In the idle state, the percussion fuse is in the safety position or according to FIG. 1 to 4 set. The pin 14, which is subject to inertia, locks the toothed slide 8, which in turn prevents any contact the firing pin with the sensitive squib 12 prevented. In this position the Pin 14 never retreat, since its lower end rests on the housing 1. A retreat is only possible if the igniter is set for momentary or delay actuation is. This provides a safety device for transport, handling and locking.

With the help of the toothed slide 8 adjacent squib support 11, the slide 17 is attached to a held in such a position that he intended for momentary actuation transfer pill 18 and also sets the transmission pill 19 for the delay eccentric to the axis of the detonator, whereby at the same time the passage of the flame to the detonator for the explosives is blocked and thus a fuse for the capsule is formed (Figs. 1 to 4).

The delay device 6 of known design controls the sliding of the toothed slide 8 and forms a means of securing the path, but at the same time also a means of securing against double loading, as it provides the Firing pin, the fuse carrier and thus also the interrupter for the flame locks and thus the momentary activation of the detonator prevents.

When setting, the detonator is prepared for activation (delay activation in Case of FIG. 3, 4, 4 a), and only in this position can the pin 14 retreat, whereby it is in the camp 25 (Fig. 3) of the body 1 takes place.

In the device described above, the following process takes place when the button is pressed:

At the moment of the launch, the pin 14, which is subject to inertia, is due to the axial persistence shifted backwards against the action of the compression spring 15. In doing so, he releases the toothed slide 8, which is moved laterally by the small piston 9 and the compression spring 10 until it reaches the The flange 26 of the firing pin 7 and the squib carrier 11 (Fig. 5, 5 a) releases. After that, the The ignition pellet carrier 11 is guided upwards by the spring 13 and the flame shut-off valve 17 is triggered. This slide 17 is laterally displaced by the small piston 22 and the associated compression spring 23, whereby the transfer pill 19 is brought into alignment with the axis of the ignition device and thus delayed actuation is set (Fig. 6, 6a). For momentary activation, the Transfer pill 18 brought into alignment with the axis.

Once the pin 14 has been moved backwards, it can no longer be returned to its starting position back as it is held by the expansion sleeve 16, which expands at the moment of displacement and is locked in the new position (Fig. 5). The lower part 27 of the pin 14 connects the bullet tip 3 firmly with the housing 1 and thereby prevents any change in one time performed setting. Finally, the flame shut-off valve 17 after its lateral Displacement by pins 20, which are pressed by the spring 21 into bores 20 'of the slide 17, in locked in its new position.

When it hits the target, the small piston 4 is pushed back. This hits through the firing pin 7 the squib 12, which in turn either the pilot flame to the transfer pill for Momentary actuation or for delay - depending on the setting made previously - transmits.

If the tip of the detonator does not strike, ignition is ensured by the ignition pill carrier 11, which penetrates to the firing pin.

Claims (2)

Patent claims: 1. Impact fuse for non-twist projectiles with selection for setting to instantaneous or Delay ignition by twisting the with a cylindrical in the capsule housing rotatable extension provided projectile point over the detonator fuse, thereby characterized in that the capsule fuse comprises a flame shut-off valve containing two different transfer pills (18, 19) (17), which is immovably supported in the rotational position of the projectile tip forming the locking position and by turning the tip of the bullet by 90 ° in one direction or the other from the safety position of a spring-loaded piston (22) arranged in an outer radial bearing in a arranged in the cylindrical extension diametrical recess is displaceable and slides in this until it reaches one of the two transfer pills arranged in the flame shut-off valve (17) (18, 19) aligns with the axis of the detonator according to the actuation selection according to the direction of the rotation of the projectile tip. 2. Igniter according to claim 1 with an axially displaceable fuse carrier, which the flame shut-off valve locked in the safety position, characterized in that the lower end of an extension of the squib support (11) in one arranged in the middle of the upper part of the flame shut-off valve (17) Engages recess and in the direction of the greatest extent of the slide on both sides of the Depression is arranged at the same distance from this one recess for receiving the transfer pills (18, 19). Considered publications: German patent specifications No. 443 189, 958 183,
850, 1,053,979, 1065,758; German Auslegeschrift No. 1096251; French patent specification No. 1226 891,
109; U.S. Patent No. 2435 415. For this purpose 2 sheets of drawings 509 518/22 3.65 © Bundesdruckerei Berlin