CONTENANT DE MASSE ACTIVE COMBUSTIBLE

COMBUSTIBLE ACTIVE MASS CONTAINER

Abrégé français

L'invention concerne un corps actif (2) comportant plusieurs fusées éclairantes (3, 4) disposées les unes derrière les autres ou empilées, servant de masse active, notamment pour la constitution de cibles fictives, le corps actif (2) étant entouré par un contenant (1) de type plastique pouvant se présenter sous la forme d'une pellicule plastique (5) ou d'une gaine rétractable (7). Des disques ou des pellicules plastiques (8) sont appliqués côté frontal sur la pellicule plastique (5) ou la gaine rétractable (7) et reliés à celles-ci par collage ou soudage (6) de telle manière que le contenant (1) est étanché de façon hermétique.

Abrégé anglais

Proposed is an active body (2) comprising, as active mass, multiple flares (3,
4) arranged behind each other or
stacked, in particular for the generation of decoys. The active body (2) is
enclosed in a plastics-like container (1) such as a plastic
film (5) or a shrink tube (7). Plastics disks or films (8) are placed on the
end face of the container and are connected to the plastics
film (5) or the tube (7) by adhesion or heat sealing (6) such that the
container (1) is hermetically sealed.

Revendications

-5-
CLAIMS
1. An active body (2) having a plurality of flares
(3, 4) which are arranged or stacked one behind the
other as an active mass, in particular for producing
decoy targets, characterized in that the active body
(2) is surrounded by a plastic-like container (1).
2. The active body as claimed in claim 1,
characterized in that said item relates to a plastic
film (5) or a shrink sleeve (7).
3. The active body as claimed in claim 1 or 2,
characterized in that plastic disks or films (8) are
fitted at the end and are connected by adhesive bonding
or welding (6) to the plastic film (5) or to the sleeve
(7), such that the container (1) is hermetically
sealed.
4. The active body as claimed in one of claims 1 to
3, characterized in that an ignition transmission layer
(9) is included at least between the inner wall of the
container (1) and the active body (2).
5. The active body as claimed in one of claims 1 to
4, characterized in that the parameters of the
container (4) can be adjusted by coloring and/or adding
additives in order to optimize the energy absorption.
6. The active body as claimed in claim 5,
characterized in that the intermediate layer (6)
consists of NC and/or RP granulate.

Description

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DESCRIPTION
Combustible active mass container
The invention relates to a combustible active mass
container based on plastic film.
RF (chaff) and IR decoy targets and/or smoke grenades
are used in military applications that have been
started, for protection of infantry, artillery, land
vehicles, watercraft and aircraft. These products are
traditionally designed such that the actual active mass
(Wm) and a central ignition or brake-up charge are
incorporated in a solid active mass container, for
example an aluminum box. The ignition and break up
charges are used to break the container up and to
ignite and distribute the active masses. In this case,
the containers form solid residues in the environment.
One known alternative is to sheath the individual
flares which form the active body with a film, such
that a packet is constrained in this way.
In a parallel application from the same applicant, a
combustible active body casing is proposed, with the
active bodies not being sheathed by a film or the like,
but being encapsulated. The encapsulation is in this
case, for example, in the form of a casing etc., which
assists the ignition behavior of the active compound
and its components. The ignition can on the one hand
take place over the surface of the active body, or by
means of centrally located ignition along the
longitudinal axis. The spectral characteristics of the
combustible casing can be optimized by addition of
materials to vary the reflection/absorption
characteristics. In particular, the injection of the
laser radiation can thus be improved, and the ignition
speed increased.

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The purpose of the invention is therefore to indicate
an active body which likewise has a casing which burns
away without any residue.
The object is achieved by the features of patent claim
1. Advantageous refinements are reflected in the
dependent claims.
The invention is based on the idea of providing an
active mass container concept which allows the active
compounds to be ignited from the outside. At the same
time, it is intended to have a protective function for
the active masses (decoy target) against environmental
influences, such as moisture, dust, dirt, during
storage, transportation and handling. The particular
choice of material with corresponding additives allows
the activation of the active compounds for example
thermally, inductively, or by means of laser etc., with
optimization for the type of activation.
The active mass container concept consists of using a
plastic film, which may also be shrinkable, to create
the container. The stacked single-flare disks are
incorporated (embedded) in the plastic film, which is
then adhesively bonded, welded or connected in such a
manner along the length, or is shrunk onto the disks.
Plastic disks or films are fitted to the end faces, and
are likewise adhesively bonded or welded. This results
in a tearing edge, which assists the opening of the
decoy target as it burns away, with the container being
hermetically sealed, that is to say it is hermetically
sealed and thus ensures the necessary protection
against environmental influences. The material choice
and the active body design ensure combustion without
any residue and complete conversion.

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The invention will be explained in more detail with
reference to one exemplary embodiment and a drawing, in
which:
Figure 1 shows an outline illustration of an
active mass container with active
compounds,
Figures 2, 3 show variants of the active mass
container from Figure 1 with closing end
faces,
Figure 4 shows the active mass container from
Figure 2 with a firing transmission
layer.
In Figure 1, 1 denotes an active mass container for
holding an active body 2, consisting of a plurality of
individual flares 3, 4, and the container 1 is in this
case composed of a plastic.
Figure 2 shows a variant of the container 1 which in
this case consists of a plastic film 5. The individual
flares 3, 4 are incorporated therein, and the film 5 is
adhesively bonded or welded along the length (6) . A
sleeve film 7 has been used instead of the plastic film
in Figure 3. In both variants, plastic disks or films 8
are fitted at the end and are connected by adhesive
bonding or welding 6 to the plastic film 5 or to the
sleeve 7, in such a way that the container 1 is
hermetically sealed.
Figure 4 shows an embodiment of the active mass
container 1 with an ignition transmission layer 9 which
is included at least between the inner wall of the
container 1 and the active body 2 or the flares 3, 4,
and optimizes the ignition or activation of the active

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body 2. The intermediate layer (6) may consist of NC
and/or RP granulate.
The active body 2 can itself be activated by laser
radiation, thermally, inductively etc.

Dessin représentatif