DE102009032453A1 - Security device for securing ignition device of projectile or active component, is provided with pyrotechnic weapon for protecting igniting device from accidental ignition - Google Patents

Abstract

The security device is provided with a pyrotechnic weapon (13) for protecting the igniting device from accidental ignition. The pyrotechnic weapon comprises a pyrotechnic composition, which has a release unit (10), particularly a firing pin or a broaching needle or a hammer and secures the ignition device. The pyrotechnic weapon comprises a pyrotechnic composition, which secures an electric or electronic ignition element of the ignition device. The electric or electronic ignition element has a piezo-electrical, inductive or capacitive operation principle.

Description

The The invention relates to a securing device for securing a detonator a projectile or active part.

To the prior art are projectiles with a recorded therein Charge, such as an explosive charge, known. The ignition device usually has a detonator for igniting the recorded in the projectile Charge up. The projectile has a securing device for securing against unintentional ignition the charge up. For safety reasons, it must be ensured that the safety device only after the shooting of the Projectile and leaving the firearm, such as one Pipe weapon, is unlocked.

To known in the art safety devices have a movable element which, after the launching of a projectile, for example, by axial acceleration, by spin or by centrifugal force, from a first the ignition device securing position in a second, the ignition releasing position is moved. Such safety devices are complicated and constructed need relatively much space. Their production is complicated and expensive. Furthermore, such a security device may also by shaking, z. B. by falling, be unlocked, so that the danger an inadvertent release of the ignition device and the Bullet is already sharp before firing. In such It can also happen that the movable Element jammed and the bullet hitting a target not sharp.

task The invention is to the disadvantages of the prior art remove. It should in particular a simple and inexpensive to produce as well as reliable Safety device for Projectiles or active parts are specified.

These The object is solved by the features of claim 1. Expedient refinements result arising from the features of the claims 2 to 8.

According to the invention the safety device against unwanted ignition at least one pyrotechnic Mechanism of action. The charge initiated by the detonator may have a carry charge, an amplifier charge or directly the main charge. The detonating chain can also have a delay function contain.

To proviso The invention is a safety device for a projectile or active part with a detonator to ignite one or more charges received in the projectile, which contains at least one pyrotechnic mechanism of action. there can the detonator z. B. a movable in a pipe in the direction of a detonator firing pin wherein the firing pin at an end opposite the detonator of the tube with a made of a pyrotechnic substance Fastener is attached. After firing the projectile burns the pyrotechnic substance instantaneously or delayed, thus giving the bolt free.

By the provision of a pyrotechnic fabric Fastener can improve the reliability of the securing device become. The proposed securing device is inexpensive to produce. The ignition the detonator through the bolt can by impact or friction initiation done at the first tap.

To In one embodiment of the invention, the detonator has an electronic detonator on the impact of the projectile on a target by a piezoelectric or an inductive or a capacitive element or a combination triggered off which is produced by a pyrotechnic substance Fastener is attached. When shooting down the projectile burns pyrotechnic substance instantaneously or delayed, thus giving the ignition device free.

Of the Electric detonator can be secured with a shorting wire be. In this case, it is made of the pyrotechnic substance Fixing means arranged or designed so that the short-circuit wire destroyed during burning of the pyrotechnic substance and the ignition device so that it is unlocked.

To In a further embodiment, the pyrotechnic substance a Mixture of an oxidizing agent and an adhesive include. With such a mixture can the elements of ignition or securing device attached, for example, glued be. The oxidizing agent may be, for example, nitrates, Chlorates, perchlorates, metal oxides or halogenated hydrocarbons act. The adhesive may be, for example, an epoxy resin. Of the Pyrotechnic substance may also be a mixture of an oxidizing agent and one, preferably pulverulent, Be fuel. In this case, the elements of the ignition or Securing device without curing times by Pressing with the pyrotechnic substance can be fixed.

According to a further embodiment, the Pyrotechnic substance on a luminous tracing component. The component may be, for example, magnesium, strontium salts, sodium salts, barium salts or copper salts. However, it is also possible to use other components known to the person skilled in the art.

To According to an advantageous embodiment, the propellant charge is in the vicinity of the pyrotechnic substance arranged so that due to the burning of the propellant charge of the pyrotechnic Substance is ignited and instantaneous or delayed burns. It is thus ensured in a simple manner that the ignition device of the projectile only after leaving a firing weapon unlocked becomes.

The function of the pyrotechnic fuse element according to the invention is as follows:
In the figure, the bullet or the ammunition is shown in a state prior to firing. In this state, the trigger element 10 , z. As a firing pin or an electrical / electronic element or a short-circuit wire or a combination of these elements, by the securing device, namely by the fastening means formed from the pyrotechnic substance 13 secured. The detonator 12 The projectile can not be ignited even with a vibration of the ammunition, such as a fall. When firing the ammunition z. B. by hitting a further firing pin of a firearm, such as a shotgun (not shown here) in a primer 3 provided (on) ignition ignited. The (on) ignition of the (on) ignition material causes an ignition of the (in) the sleeve 1 recorded propellant charge 14 , By one when burning the propellant charge 14 generated pressure is the shaped charge bullet from the sleeve 1 expelled and thereby breaks through the at the first end of the sleeve A1 1 arranged lid 2 , The burning of the propellant charge 14 also causes firing and burning of the fastener made of a pyrotechnic substance 13 , Burning off the fastener 13 occurs instantaneously or delayed depending on the composition of the pyrotechnic substance. After burning off the fastener 13 is the trigger element 10 to ignite the detonator 12 released and the pyrotechnic fuse element is in focus. Because until the release of the trigger element 10 a certain amount of time passes, the bullet has already left the barrel of the launching weapon when it is in focus and has reached a sufficient distance from the shooter. The pyrotechnic substance may have a component that generates a tracer trace. The shooter can trace the trajectory of the projectile through the generated tracer track. When the sharp bullet hit a target becomes the trigger element 10 the detonator 12 ignite in a conventional manner.

Of the completeness it should be mentioned, that safety regulations are usually a combination of several Demand fuse elements. To meet this demand, can several security elements with pyrotechnic mechanism of action or also be combined with other known mechanisms of action.

LIST OF REFERENCE NUMBERS

1

shell

2

cover

3

Primer

4

cap

5

cone-like inlay

6

wall

7

pipe

8th

first room

9

second room

10

triggering element (eg striker)

11

feather

12

Detonator

13

fastener

14

propellant

15

wing

A1

first The End

A2

second The End

E1

pipe end

Claims (8)

Safety device for securing an ignition device of a projectile or active part, comprising at least one pyrotechnic active agent ( 13 ) for securing the igniter against accidental ignition. Safety device according to claim 1, wherein the pyrotechnic active agent comprises a pyrotechnic mass ( 13 ), which is a triggering element ( 10 ), preferably a striker or puncture needle or a hammer securing the igniter. Safety device according to claim 1, wherein the pyrotechnic active agent comprises a pyrotechnic mass ( 13 ), which ensures an electrical or electronic ignition element of the ignition device, which has a piezoelectric, inductive and / or capacitive action principle. Securing device according to claim 3, wherein the electrical or electronic ignition element is secured with a short-circuiting wire, which by the pyrotechnic mass ( 13 ) is blown when unlocking. Safety device according to one of the preceding claims, wherein the pyrotechnic mass ( 13 ) a mixture of an oxidizing agent tel and an adhesive. Safety device according to one of the preceding claims, wherein the pyrotechnic mass ( 13 ) has a luminous trace generating component. Securing device according to any preceding claim, wherein the pyrotechnic mass ( 13 ) near a propellant charge ( 15 ) of the projectile or active part is arranged, so that as a result of the burning of the propellant charge ( 15 ) the pyrotechnic substance ( 13 ) is ignited. Safety device according to one of the preceding claims, wherein the pyrotechnic mass ( 13 ) depending on the mixture instantaneously or defined burns time-delayed.

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