KR0131595B1 - Detonator especially for the propellant charge of a - Google Patents

Abstract

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Description

Ignition device for propulsion of antitank weapons, especially without recoil

The present invention relates to an ignition device according to the higher concept of claim 1.

However, ignition devices are used to ignite the fillings encapsulated in the container and for the propulsion charge of the lower carrier exercise bomb, especially for non-reactive antitank weapons. Such a practice weapon has such a launch tube into which a model projectile that receives ammunition into a firing tube is inserted, whereby the ammunition of the ammunition is expelled without reaction from the launch tube with the aid of a propellant. The propellant of the exercise bomb is located in a container made of aluminum, for example, and is ignited by a single igniter, where the igniter comprises one primer, one ignition charge and one through element in the casing. After initiation of the ignition charge, the penetrating element is expelled from the igniter and passes through the container of the propellant. The hot gas of the ignition charge then penetrates the propellant container and ignites the charge.

The igniter, which must be replaced after each shot, must be firmly supported in the receiving device by means of pressure sealing in relation to the firing tube during the ignition process. In addition, the ignition charge shall be from the outside to prevent air or moisture from entering. This is the only way to ensure that the ignition load is reliably ignited, even after a long storage time.

In order to solve the above problems, it is known to one ignition device, which is screwed to the receiving device with the help of external threads on the periphery of its casing. The casing of the ignition device is divided into two parts, wherein the inner casing is screwed into an outer casing with a screw thread, the inner casing comprising a primer, an ignition insert and a penetrating element. The penetrating element is a cylinder having a lower ring flange lying on the ignition charge. A predetermined breaking point is formed between the ring flange and the cylinder. On the ring flange, there is an annular seal across the ignition charge, which is pressed against the ring flange by the rim of the inner casing, thereby sealing the ignition charge.

After the primer has started and the ignition charge is ignited, the cylindrical part of the penetrating element is torn from the ring flange and expelled towards the propellant container through the hole in the outer casing. This vessel is penetrated by the penetrating element, so that the hot gases of the ignition charge subsequently penetrate the propulsion charge and thereby ignite it.

The manufacture of igniters is complicated by the use of many single parts that must fit exactly together. The outer and inner casings of the igniter must be manufactured separately and then joined together. In particular the production of threaded outer casings and the production of inner casings with pressure-sealing holding means for the penetrating elements require expensive manufacturing machines and many different manufacturing steps. Inexpensive manufacturing in terms of use as a disposable article cannot be expected with this structure.

On the other hand, replacing the igniter is cumbersome. In known practice antitank weapons, to remove the igniter from the receiver, the two rotating rings must first be turned before the screw is removed from the receiver and a new igniter can be inserted. The igniter casing has one gripping edge at the bottom and this gripping edge facilitates screwing and unscrewing of this part but this edge has a diameter of only approximately 1 cm or more. It is obvious that both unscrewing the used lighter and screwing it with a new one requires a lot of time, patience and skill.

This invention is based on the problem of structurally designing an igniter of the kind in question in order to allow economical mass production and simple handling during insertion and replacement of igniters.

The above problem is solved according to the invention by the features of claim 1. The ignition device thus consists of a single, easily manufactured rotating member for the casing of the igniter having a conical outer wall and a central hole and likewise a conical receiver. The igniter is no longer screwed in but is just pressed into the receiving device, whereby the conical design of the igniter's outer walls and of the igniter's inner walls ensures a tight fit of the igniter. In order for the primer, the ignition charge and the penetrating element to be received, only one stairway, preferably stepped, must be made in the igniter casing. The penetrating element is preferably pressed into the narrowest part of the stepped hole in the top of the igniter casing and is therefore a ball that seals the ignition charge from the outside. This seal can be improved by filling the space between the ball and the hole with a sealant, for example a seal varnish.

The ignition casing can be made automatically from one material on one machine tool. The primer, the ignition charge and the ball are then placed in the completed ignition casing. The penetrating element is preferably pressed into the narrowest part of the stepped hole in the top of the igniter casing and is therefore a ball that seals the ignition charge from the outside. This seal can be improved by filling the space between the ball and the hole with a sealant, for example a seal varnish.

The ignition casing can be made automatically from one material in one machine tool. The primer, the ignition charge and the ball are then placed in the completed ignition casing. If the rotatable carver, in its closed state, allows the receiving device to be covered by such a rotatable carver which has its inner surface abutting against the lower part of the igniter casing, processing during insertion and replacement of the igniter will also be significantly simplified. Can be. In particular, the carver has a compartment at the bottom of the inner side, which includes a striking shell for a primer supported by a spring which penetrates the inner surface and a locking element for the striking pin. This cover is preferably supported closed by one ball catch. Therefore, in order to insert a new primer into the receiver, it is only necessary to open this inner cover and remove the used igniter, and in some cases simply insert a new one into the receiver and then close the cover. Even this case can be performed very quickly without any problem.

Further embodiments of this invention are indicated in the dependent claims.

The invention will be explained in more detail in the embodiments with reference to the drawings.

1 is a longitudinal cross-sectional view, partly in cross section, of an antitank rocket gun having an ignition device according to the present invention;

2 is a longitudinal sectional view of an ignition device according to the invention.

3 is a longitudinal sectional view of an igniter according to the invention.

FIG. 1 shows an exercise weapon 1 in the form of an antitank rocket launcher having one launch tube 2 and one model projectile 3 inserted therein. This launch tube is connected to one launch device 4 and one aiming telescope 5. The exercise bomb 6 is inserted into the inner tube of the model projectile 3, which has a propellant 7 and a counterweight for pushing the exercise projectile in addition to the exercise projectile of the lower diameter. The propellant 7 is ignited by the ignition device 8 shown in more detail in FIG.

The propellant filling 7 is contained in a cylindrical aluminum container 9 which has a predetermined breaking point 10 in the range of the ignition device 8.

The ignition device is composed of a receiving device 21 penetrating the wall of the launch tube 2, an igniter 22 inserted into the receiving device, and a single burner 23 covering the receiving device 21. have.

The igniter 22 has a conical casing 31 having a conical sidewall, a support ring 33 on the wide base of the cone and a cylindrical extension 34 on the narrow base of the cone. .

The receiving device 21 is a single inner wall 35 of the conical shape corresponding to the conical outer wall 32 of the igniter, and to the firing tube 2 in the region of the fracture point 10 of the propellant 7. It has one cylindrical inner hole 36 to join. The cylindrical extension 34 of the igniter 22 has a periphery 37 with a zero ring 38 inserted at a speed, which zero ring from the cylindrical hole 36 of the receiving device 21. Seal 22. When the igniter 22 is pushed into the receiving device 21, the conical walls of the igniter and the receiving device also support each other, as a result of which these two parts are in a tight manner from each other and from the launch tube. To be sealed.

The igniter casing 31 has a hole 41 in which a central step is formed. One primer 43 is inserted into the first partial hole 42 of the hole having the largest diameter step on the wide base of the cone casing. Another hole 44 having a smaller diameter, which houses the ignition filler 45, is connected to this hole 42. This portion 44 of the hole extends axially to an approximate area where the conical outer wall 32 of the igniter carries over to the cylindrical extension 34. Next to the part 44 is another part 46 of a hole with a smaller diameter, into which one ball 47 is pressed which pushes the propellant 45 from the outside. Seal. The ball 47 and the portion 46 of the hole are filled with a sealing varnish 48.

When the primer 43 is triggered by a striking pin, for example, it ignites the ignition filler 45, whereby the ball 47 is expelled from the portion 46 of the hole and Allow the compartment to penetrate the vessel 9 of the propulsion loom 7 in the zone. Then hot gases of the burning ignition charge 45 flow into the vessel through the broken hole and ignite the propellant. The lower diameter projectile of the practice bomb 6 is expelled from the launch tube 2 in a known manner without the action of the counterweight with the aid of the propellant filling, whereby the model projectile 3 is launched from the launch tube 2. Will remain.

The airtight connection between the firing tube 2 and the interior and the igniter is further improved by the stepwise cross-sectional design of the conical outer wall 32 of the igniter 22 as shown by the broken line 51 in the left half of FIG. Can be done. The sealing ribs around these act as labyrinth seals and as a result ensure an absolutely tight fit of the igniter 22 in the receiving device 21.

The igniter 22 inserted into the receiving device 21 is also held in place by the above-mentioned carver 23. The carver is pivoted in the direction of arrow P around the axis 61 connected with the launch tube 2 Can be locked and locked by the ball catch 62 in the closed state as shown in FIG. In this position the inner surface 63 abuts against the lower side of the igniter 22. This inner surface 63 has one central opening 64 pierced by a striking pin 65 supported by springs 66. The striking pin 65 and the sprinkles 66 are arranged together with the locking pin 67 in the section 68 of the cover 23 extending downward with respect to the inner surface 63. When the locking pin 67 supported by the spring 69 travels a certain distance, the spring-supported striking pin is released and strikes the primer 43 of the igniter 22.

The ignition described can also be used with real ammunition.

Claims (10)

One receiving device in the area of the container for the charge for the igniter with one primer and one ignition charge and one penetrating element in the casing, and the replaceable inserted and supported igniter in one casing In the ignition device for one charge encapsulated in a container, especially for the propulsion charge of the practice bomb for antitank weapons, the casing 31 of the igniter 22 has the shape of a cone. Has a hole 41 in the center of which comprises a primer 43, an ignition charge 44 and a through element 47, starting from the bottom of the cone in a wide base plane, where the through element 47 ) Is sealed from the hole 41 and the receiving device 21 is adapted in its shape with respect to the casing 31 of the igniter 22. Value. 2. The device according to claim 1, wherein the outer wall (32) of the conical ignition casing (31) has sealing ribs (32) of the major surface. The casing 31 of the igniter according to claim 1 has a cylindrical extension 34 at the end at which the gradient is given, which extension is bitten by a cylindrical hole 36 connecting to the conical section of the receiving device 21. Device characterized in that. 4. Device according to claim 3, characterized in that it is inserted into the cylindrical extension of the surrounding sealing ring (28), preferably the zero-ring igniter casing (31). Apparatus according to one of the preceding claims, characterized in that the igniter casing (31) forms a supporting edge (33) at the wide base of the cone. 5. The central hole 41 in the igniter casing 31 is a stepped hole, the widest part 42 of the hole at the wide base of the cone. ) Comprises the primer 43 and the ignition insert 45 of the next narrower part 44 of the hole, and the narrowest part of the hole in the region of the apex of the conical igniter casing 31. 46) device comprising a through element (47). 5. The through element according to any one of claims 1 to 4, wherein the penetrating element is a ball (47), which ball is pressed into holes (41, 46) in the region of the apex of the cone igniter casing (31). Device characterized by losing. 8. Device according to claim 7, characterized in that the ball (47) is sealed from the hole (46), in particular by means of a sealant (48), such as a seal varnish. 5. The device according to claim 1, wherein the receiving device 21 is adapted to be closed with respect to one pivotable carver 23, the pivotable carver being in the closed state, the igniter casing 31. And a blow pin 65 penetrating the inner surface 63 of the carver 23 against the primer 43 of the igniter 22. Device with one compartment (68) and a locking element (67) for the striking pin (63). 10. The device according to claim 9, wherein the cover is held in a closed state by one ball catch (63).