EP3370033B1 - Safety means for mitigating the explosive force of explosives in luggage articles - Google Patents

Description

The present invention relates to a baggage securing means which mitigates explosive force of baggage explosive devices. In particular, should be significantly reduced by the securing means damage caused by the explosion of a bomb or an explosive device, in particular arranged in a suitcase or a bag fragmentation bomb.

The WO 2017 025721 A1 describes a securing means for weakening an explosive force according to the preamble of independent claim 1.

It should be noted that I am with the securing means to a textile securing means of which no danger itself and which in particular is not self-explosive or explosive, but which is provided solely for security purposes and protective measures and is used exclusively for this purpose.

Disarming or disarming explosive devices is also a challenge for experts in the field, such as specially trained bomb disposal teams. In this context, it may not always be possible to defuse bombs or explosives, or to have significant destructive effects on the environment without causing personal injury on the ground. Also, it is often very complicated and dangerous to bring the explosive device to another location, as it could also be that the detonation of the bomb is controlled by a remote detonator or time fuse.

In particular, suitcase bombs at airports or at other public and busy places is a particular problem, since here for security reasons, the entire airport / space must be evacuated, as in a detonation of such suitcase bombs there is a risk that a very high number of people deadly is injured and immense damage to the airport or surrounding buildings are caused. Particularly dangerous in this context are so-called fragmentation bombs, which contain metal fragments, nails, glass splinters or the like. Such fragmentation bombs are very difficult to barely controllable, since the projectiles are distributed by the explosion of the fragmentation bomb at very high speeds in all directions and can cause serious or fatal injuries.

The present invention is therefore based on the object to provide a securing means with which a random or controlled detonation of the explosive device can be carried out with weakening of the explosive force, wherein the securing means should be designed such that, although a pressure wave, which results from the explosion of the explosive device, may partially escape, however, the securing means is permeable to splinters, so that the blast has the least possible impact on the environment and people.

These objects are achieved according to the invention by the subject matter of independent claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.

A securing means according to the invention, in particular for items of luggage, for weakening an explosive force of explosive devices located in the items of luggage has a base body which has four side parts and a cover part adjoining the side parts, wherein a receiving space for receiving the item of luggage through the side parts and the cover part is trained.

The base body preferably has a square or rectangular shape.

According to the invention, in each case a tab is attached to each side part of the main body, and the main body has a plurality of openings, so that a pressure wave, which arises in an explosion of the explosive device, at least partially escape. It is therefore proposed with the present invention that to mitigate the explosive force of an explosive device located in a piece of baggage, the securing means is placed over the baggage item with the explosive device, so that the item of luggage is completely absorbed or enclosed by the receiving space of the securing means.

The mentioned openings, which allow a partial escape of the pressure wave arising during the explosion, are preferably arranged at a connection point of the base body, which is formed by the side parts and the cover part. Preferably, these openings are arranged at connection points of the base body, which are formed by at least two side parts and the lid part and in particular at the corners of the rectangular base body. Accordingly, the securing means preferably has at least four such openings, if it is a rectangular base body. Advantageously, however, the mentioned openings can also be formed at other locations, in particular at other connection points, for example between two side parts or also on the base body itself, so that the securing means can also have a multiplicity of such openings.

The explosion of the explosive device mentioned above is preferably a controlled detonation of the explosive device, which was deliberately caused after the securing means has been arranged and positioned over the item of luggage. In particular, the securing means according to the invention should be able to mitigate the explosive force of explosive devices, which are located for example in a piece of luggage and at the same time the securing means should also be designed so that it is heavy-permeable and preferably impermeable to splinters, but preferably at least a part of Pressure wave, which arises at the detonation of the bomb, can escape.

In a particularly preferred embodiment, the base body consists of two long elements, which by means of a ballistic fabric and preferably by means of threads from a Ballistic fabric are sewn together twice. The two long elements are preferably placed crosswise and then sewn to the main body. Advantageously, a further element is additionally provided, which is also sewn twice and made of the same material as the body and which in the installation of the securing means, if this was positioned over the luggage or the explosive device, can be slipped around the side panels of the body , So that the securing means has an even higher stability or the securing means can be further reinforced. The ballistic fabric with which the main body is sewn can advantageously be Kevlar threads or the like.

Particularly preferably two expansion creases are arranged on the base body and advantageously on the two long elements, which are sewn with less tear-resistant threads and arranged on the base body. Preferably, therefore, the threads differ by means of which the pleats are sewn and the threads by means of which the long elements are sewn from each other. These expansion folds are advantageous in that the base body can expand during the explosion of the explosive device, so that its interior can be increased. Accordingly, the threads by means of which the pleats are sewn are advantageously torn during the explosion of the explosive device.

In a preferred embodiment, the securing means comprises at least one and preferably a plurality of receiving pockets for receiving stabilizing agents. Advantageously, the tabs arranged on the side parts of the basic body each have at least one and preferably at least two mutually separate such receiving pockets.

In a further preferred embodiment, at least one side part and / or the cover part of the base body is designed such that at least one receiving pocket is formed by the side part and / or the cover part, which preferably also serves to receive stabilizing agents. Preferably, a plurality of side parts and / or the cover part are formed such that at least one and preferably a plurality of receiving pockets are formed by the side parts and / or the cover part.

These stabilizers advantageously serve to additionally strengthen the securing means and in particular the material of the security means. The stabilizers are preferably insert plates. These are preferably made of a material selected from a group of materials including metal such as ballistic steel, oxide ceramics, polyethylene, aramid fabric or Kevlar, compounds thereof or the like. Accordingly, depending on the type and / or size and / or strength of the bomb / explosive, a suitable stabilizing agent can advantageously be introduced into the receiving pockets. Preferably, instead of or in addition to the stabilizing agents, thermocouples could also be arranged in the receiving pockets, which preferably have a thermoisolating effect.

The abovementioned tabs, which are arranged on the side parts, can advantageously be applied to a flat surface or a bottom. Preferably, the tabs are secured to and preferably attached to a surface carrying the explosive device. on the ground, screwed or glued, for example with an adhesive tape such as armored tape or the like. In this case, it is advantageously possible for the flaps to be fastened completely, that is to say with the entire length or the entire surface, to the flat surface. Preferably, however, the tabs are only partially attached to the flat surface, preferably 75% of the total length or area, preferably 50% of the total length or area and more preferably 25% of the total length or area.

Preferably, the tabs are proportioned in accordance with the side length of the side parts and side height and in particular such that the length of the tabs is longer compared to the side lengths of the side parts. Preferably, the width of the tabs and the side width on the same dimensions. These selected dimensions are advantageous, since this makes it possible that the main body or the receiving space can stand out from the ground to a certain extent in the explosion. In particular, it may be determined by the above-described partial fastening of the tab on the floor to what extent the securing means can lift off the floor. Without attaching the tabs on the flat surface or the surface carrying the explosive device, there is a risk that the securing means is lifted by the pressure wave of the explosion and thrown through the air. This would mean that splinter bombs scatter the splinters in all directions and nearby people and the environment would suffer damage, which should be prevented by the securing means according to the invention, however.

Advantageously, it is also conceivable that the tabs or preferably flexible bordered high-temperature plates are fastened by Velcro fasteners on the main body or the side panels and are therefore removable and replaceable, so that it is also conceivable that the dimensions of the tabs used or flexible edged elastic Hochtemperaurplatten can be varied depending on the size of the site. These elements (tabs or flexible bordered high-temperature plates) preferably have identical dimensions, in particular preferably all existing tabs or high-temperature plates have the same length and identically constructed. However, it is also conceivable in this connection that preferably the opposing lugs or high-temperature plates each have the same size / length. Advantageously, it is also conceivable that the mentioned high temperature plates are arranged in the receiving pockets of the tabs and the high temperature plates and tabs are accordingly mounted together via Velcro fasteners on the securing means or its base body or side panels.

In a particularly preferred embodiment, the securing means consists of Kevlar material or the like or has at least one such material. Preferably, at least the main body of the securing means consists of the Kevlar material and particularly preferably the entire securing means, that is to say the base body and the straps arranged on the side parts of the basic body. Advantageously, all materials which consist of aramid fibers such as Twaron or plastics such as Zylon and Dyneema can be used as the material for the securing means. Basically, as material for the securing means in particular all materials are conceivable, which are also commonly used for bullet-proof or puncture-resistant protective clothing, vests or hard hats or general protective clothing.

However, the Kevlar material is preferred because it is a particularly lightweight, durable and durable material which also has high flame and temperature resistance, strength and rigidity. At the same time, the Kevlar material is a flexible material that allows deformation to a certain extent during the explosion.

In a further preferred embodiment, at least one side part and the lid part and preferably a plurality of side parts and the lid part, by means of threads and in particular Kevlar threads or the like connected to each other and in particular sewn together. In an advantageous embodiment of the securing means, the tabs are particularly preferably fastened and in particular sewn to the main body or the side parts by means of Kevlar threads. The securing means is therefore particularly preferably constructed from several individual parts. These individual parts are preferably at least one side part, a cover part and a tab, and more preferably at least four side parts, a cover part and four straps.

Preferably, the transitions between two adjacent side parts or between the side parts and the lid part are not completely sewn together, but it is preferably left at certain intervals openings, so that thereby further openings are formed by which the pressure wave, which arises in the explosion can escape , However, these openings should preferably be so small that advantageously no larger splinters can fly through these openings, so that there is no danger to persons and the environment is not destroyed or damaged.

The area or size of the securing means and in particular of the receiving space is preferably variable. In a preferred embodiment, the receiving space has a volume of at least 50 l, preferably at least 100 l and particularly preferably at least 180 l. Preferably, the securing means is present in several embodiments, which preferably differ with regard to the size of the securing means and particularly preferably with regard to the volume of the receiving space. This ensures that both smaller suitcases with a volume of about 20 l and large suitcases with a volume of up to about 120 l of the securing means and in particular the receiving space, can be completely enclosed.

In a preferred embodiment of the securing means, at least two opposite side parts are preferably permeable to X-ray radiation, so that the securing means in particular for identification and analysis of the explosive device can be illuminated. Preferably, all the side parts and advantageously the entire base body, so the side parts and the lid part permeable to X-rays.

In a further preferred embodiment, the securing means is foldable and in particular the securing means is transported and / or stored in a folded state. Accordingly, the security device can already be stored at many public and busy places, places and facilities, for example at airports, for safety reasons and for protective measures. Accordingly, if there is a suspicion that a piece of luggage is in a piece of luggage, the on-site staff and responsible personnel can react immediately and secure the baggage with the securing means. It must therefore, at least to secure the explosive device, not only waiting for the arrival of a bomb disposal team. The securing means is therefore preferably designed such that, in particular in the folded state, it is easy and easy to transport and, moreover, is easy to apply and can be set up quickly.

Preferably, a linkage in the securing means and in particular in the base body may be present, through which the securing means itself unfolds or builds up, whereby an even faster and easier application of the securing means can be ensured.

Advantageously, the securing means further comprises catches or carrying handles, which can preferably be arranged on the base body by means of a hook-and-loop fastener connection, so that the securing means can be transported even more easily, in particular in the folded state.

It would also be conceivable that the securing means is constructed in principle in the nature and shape of a fire blanket. Preferably, however, it would also be conceivable that, for example, only the inner surfaces of the main body, ie the receiving space is coated with a material which is commonly used for the production of fire blankets, such as flame retardant wool, glass fiber fabric or Nomex.

In a further preferred embodiment, the securing means according to the invention is constructed at least in two parts and particularly preferably in three parts and has in particular a splinter guard, a hood, which substantially corresponds to the securing means described above and a heat protection on. In this case, heat protection is particularly preferably arranged within the securing means and / or the securing means is surrounded by splinter protection. Preferably, the splinter protection is designed such that it can be placed over the hood or the hood can be arranged within the splinter protection and the heat protection is designed such that it can be arranged within the hood. The splinter protection therefore preferably has the largest volume and the heat protection the smallest volume.

Particularly preferably, the splinter protection and the hood of a two-ply Kevlar fabric with a temperature resistance between 200 ° C and 380 ° C, preferably between 220 ° C and 390 ° C and more preferably between 250 ° C and 400 ° C. The heat protection is preferably made of a glass fiber mat with double-sided nylon enclosure and has a temperature resistance between 200 ° C and 900 ° C, preferably between 220 ° C and 1000 ° C and more preferably between 250 ° C and 1100 ° C.

In a preferred embodiment of the hood, the hood has at the side parts and the lid part expansion folds with a width of 6 cm, preferably with a width of 8 cm, more preferably with a width of 10 cm. Two expansion folds are particularly preferably arranged on the cover part and each side part. In particular, it is ensured by the expansion folds that the hood can expand in the explosion of the explosive device. With a width of an expansion fold of 10 cm, it is therefore possible that the hood can spread on the side division and the lid part by 20 cm. More preferably, the heat protection and the splinter protection are designed such that they are open at the top and bottom.

It is conceivable that the heat protection and the splinter protection are sewn to the hood or at least partially sewn together and placed together over the explosive device. It would also be conceivable, however, that on site first the heat protection is placed over the explosive device, then the hood over the heat protection and finally the splinter protection according to the hood and the heat protection. Depending on the type and size of the explosive device, it would also be conceivable that the splinter protection and the heat protection is not always used or only when they are needed. Accordingly, it is also possible that either only the splinter protection or only the heat protection is used.

The heat protection preferably further comprises on at least two side parts on a Velcro strips, through which the pressure that arises in the explosion of the explosive device, can partially escape, so that tearing or destruction of the material of the heat protection can be prevented due to the pressure wave.

The securing means according to the invention has been described in the present case in connection with pieces of luggage or explosives in pieces of luggage, but is not limited thereto. The securing means can also be used to mitigate an explosive force of, for example, in trash cans, pieces of furniture, etc. explosive devices. In addition, the securing means according to the invention can also be used alone in a bomb / explosive device, for example, in public places, but not in pieces of baggage, explosive devices found during construction explosives and all other similar and conceivable situations where there is a risk that persons infrastructure, in particular by explosives or bombs.

Fig. 1

eine dreidimensionale Darstellung des erfindungsgemäßen Sicherungsmittels;

Fig. 2

eine Seitenansicht des erfindungsgemäßen Sicherungsmittels;

Fig. 3

eine Unteransicht des erfindungsgemäßen Sicherungsmittels;

Fig. 4

eine Draufsicht des erfindungsgemäßen Sicherungsmittels;

Fig. 5

eine weitere dreidimensionale Darstellung des erfindungsgemäßen Sicherungsmittels;

Fig. 6a, 6b

einen Splitterschutz für das erfindungsgemäße Sicherungsmittel;

Fig. 7a, 7b

eine weitere Ausführungsform des erfindungsgemäßen Sicherungsmittels bzw. die Haube;

Fig. 8a, 8b

einen Hitzeschutz für das erfindungsgemäße Sicherungsmittel; und

Fig. 9

das erfindungsgemäße Sicherungsmittel bestehend aus Splitterschutz, Haube und Hitzeschutz.

Further advantages and embodiments will be apparent from the attached drawings:
Show:

Fig. 1

a three-dimensional view of the securing means according to the invention;

Fig. 2

a side view of the securing means according to the invention;

Fig. 3

a bottom view of the securing means according to the invention;

Fig. 4

a plan view of the securing means according to the invention;

Fig. 5

a further three-dimensional representation of the securing means according to the invention;

Fig. 6a, 6b

a splinter protection for the securing means according to the invention;

Fig. 7a, 7b

a further embodiment of the securing means according to the invention or the hood;

Fig. 8a, 8b

a heat protection for the securing means according to the invention; and

Fig. 9

the securing means according to the invention consisting of splinter protection, hood and heat protection.

FIG. 1 shows a three-dimensional representation of the securing means according to the invention, which is characterized in its entirety by the reference numeral 1 and in which the tabs 21 are folded over the side parts 11, 12, 13, 14 to the outside. The reference numeral 10 indicates the base body, which consists of a plurality of side parts 11, 12, 13, 14 and a cover part not visible in this illustration, wherein by the side parts 11, 12, 13, 14 and the cover part together a receiving space 20, for receiving a Luggage, is formed. Accordingly, the base body 10 in the in FIG. 1 and also in the Fig. 2-5 shown embodiment of the securing means 1 four side parts 11, 12, 13, 14.

Furthermore, in this illustration receiving pockets 19, 24 can be seen, which are formed by the arranged on the side parts 11, 12, 13, 14 tabs 21 and the side parts 11, 12, 13, 14 themselves. As already mentioned above, stabilizer means, in particular in the form of slide-in plates, which additionally reinforce the securing means 1, can be introduced into these receiving pockets 19, 24.

FIG. 2 shows a side view of the securing means according to the invention. Here, it is shown schematically how the main body 10 and the receiving space of the body, a piece of luggage 2, within which an explosive device 5 is located completely encloses. Visible in this illustration, the tabs 21, which can be applied to a flat surface 30. The tabs 21 are shown relatively small in this illustration for reasons of simplicity, but are, as described above, in reality larger or longer than the height of the base body 10, so that it can be prevented that the main body 10 during the explosion of the explosive device 5 thrown through the air becomes. It can, as already described above, be determined by the partial fixing of the tabs 21 on the flat surface 30, to what extent the securing means 1 can stand out during the explosion of the explosive 5 from the ground.

In FIG. 3 Furthermore, a bottom view of the securing means according to the invention is shown. In particular, the viewing direction in the receiving space 20 is shown in this figure. Here are also again, as in the three-dimensional representation of Fig.1 , the tabs 21 folded over the side parts 11, 12, 13, 14 to the outside. In this illustration, it can be seen, in particular, that the cover part 15 is preferably designed such that this cover part 15 also forms at least one receiving pocket 19 in which stabilizing means, in particular in the form of slide-in plates, can likewise be introduced for reinforcement and / or stabilization. Furthermore, here again through the side parts 11, 12, 13, 14 formed receiving pockets 19 can be seen.

The representation in FIG. 4 is a plan view of the securing means according to the invention, wherein in particular the viewing direction is shown from above on the lid part 15. The reference numeral 18 denotes the locations at which preferably the openings described above are arranged, through which a pressure wave, which arises in the explosion of the explosive device can escape at least partially. However, the arrangement of these openings 18 is not limited to these positions, as in particular Figure 5 will be explained in more detail. Also, the illustrated relationship between the base body 10 and the tabs 21, for reasons of simplicity, again not the reality, as already at Fig.2 mentioned.

In FIG. 5 a further three-dimensional representation of the securing means according to the invention is shown. Visible here is again consisting of a plurality of side parts 11, 12, 13, 14 and a cover part 15 basic body 10 and arranged on the side parts 11, 12, 13, 14 tabs 21, which in this embodiment each have two separate receiving pockets 24.

The reference numeral 18 here again identify the openings through which the resulting pressure wave in the explosion of the explosive device can escape at least partially. As mentioned above, the securing means 1, a plurality of such openings, which, for example, at a junction between the side parts 11 and 12 and / or a connection point between the side parts 12 and 13 and / or a connection point between the side parts 13 and 14 and / or a connection point between the side parts 14 and 11, are arranged.

Furthermore, such openings in a further preferred embodiment also at a junction between the lid part 15 and the side part 11 and / or a connection point between the lid part 15 and the side part 12 and / or a connection point between the lid part 15 and the side part 13 and / or a connection point between the cover part 15 and the side part 14 may be arranged.

In particular, the openings 18 at the in Figure 5 respectively. Figure 4 shown positions and also be arranged at the above-mentioned connection points, so that the securing means 1 preferably has a plurality of openings 18 through which at least a portion of the pressure wave resulting from the explosion of the explosive device can escape.

In the FIGS. 6a and 6b the splinter guard 55 is shown for the securing means according to the invention and in the FIGS. 8a and 8b the heat protection 45. In particular from the FIGS. 6b and 8b It can be seen that the splinter guard 55 and the heat shield 45 have only side parts 56-59 or 47-50 and are open at the top and bottom. Furthermore, in the FIGS. 8a and 8b the above-mentioned Velcro strip 46 recognizable, through which the pressure wave resulting from the explosion of the explosive device can escape in part.

The FIGS. 7a and 7b show the hood 40, which essentially corresponds in construction to the securing means 1 described so far. The tabs 21 and the side parts 11-14 and the cover part 15 can also be seen in this illustration. In addition, the hood 40 or the securing means 1 has a plurality of expansion creases 41, so that the hood 40 rises as far as during the explosion of the explosive device can expand to a degree. From the FIG. 7b it is apparent in particular that the hood 40, in contrast to the splinter guard 55 and the heat shield 45, also has a cover part 15, on which the four side parts 11-14 are arranged.

From the FIG. 9 is the "three-part" structure of the securing means 1 consisting of splinter protection 55, hood 40 and heat protection 45 out. The in the FIG. 9 existing arrows illustrate in particular that the splinter guard 55 is disposed over the hood 40 and the heat shield 45 within the hood 40. In an assembled state of the "three-piece" securing means 1 is thus the heat shield 45 within the hood 40 and the splinter guard 55 via the hood 40. As mentioned above, the three parts could either be firmly sewn together or assembled on site.

The Applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided they are novel individually or in combination with respect to the prior art. It is further pointed out that features have also been described in the individual figures, which in themselves can be advantageous. The person skilled in the art immediately recognizes that a particular feature described in one figure can also be advantageous without taking over further features from this figure. Furthermore, the person skilled in the art recognizes that advantages can also result from a combination of several features shown in individual or in different figures.

LIST OF REFERENCE NUMBERS

1

securing means

2

piece of baggage

5

explosive device

10

body

11-14

side panels

15

cover part

18

openings

19, 24

receiving pockets

20

accommodation space

21

flap

30

flat surface

40

Hood

41

pleats

45

heat protection

46

Velcro strips

47-50

side panels

55

splinter protection

56-59

side panels

Claims (13)

1. Security element (1), especially for pieces of luggage (2), for reducing an explosive power deriving from explosive devices (5) which are located in the pieces of luggage (2), wherein the security element (1) has a base body (10), which base body has four side parts (11, 12, 13, 14) and a lid part (15) which joins the side parts (11, 12, 13, 14), wherein a receiving space (20) is formed by the side parts (11, 12, 13, 14) and the lid part (15), for receiving the piece of luggage (2),
   characterized in that
   there is a respective lug (21) fastened to each side part (11, 12, 13, 14) of the base body (10), which lug can be fastened to a surface (30) which supports the explosive device (5), and the base body (10) having several openings (18), so that a pressure wave, which is caused by the explosion of the explosive device (5), is able to at least partially escape, wherein the openings (18) are fastened to connection areas of the base body (10), which are formed by the lid part (15) and the side parts (11, 12, 13, 14), and/or are fastened to the connection areas between two side parts (11, 12, 13, 14) respectively.
2. Security element (1) according to claim 1,
   characterized in that
   the base body (10) consists of two long elements, which are sewn together twice, by a ballistic fabric and preferably by threads made from a ballistic fabric.
3. Security element (1) according to at least one of the preceding claims,
   characterized in that
   the security element (1) has at least one and preferably several receiving pockets (19, 24) for receiving stabilizing agents.
4. Security element (1) according to claim 1,
   characterized in that
   the lugs (21) each have at least one and preferably at least two receiving pockets (24) which are separated from each other.
5. Security elements (1) according to at least one of the preceding claims,
   characterized in that
   the security element (1) is made from Kevlar material or the like, or at least comprises such a material.
6. Security element (1) according to at least one of the preceding claims,
   characterized in that
   at least one side part (11, 12, 13, 14) and the lid part (15) are connected to each other and preferably sewn to each other by means of threads and in particular with Kevlar threads.
7. Security element (1) according to at least one of the preceding claims,
   characterized in that
   at least two side parts (11, 12, 13, 14) facing each other of the base body (10) are permeable to x-radiation.
8. Security element (1) according to at least one of the preceding claims,
   characterized in that
   the lugs (21) are fastened to the base body (10) by means of Kevlar threads.
9. Security element (1) according to at least one of the preceding claims,
   characterized in that
   at least one side part (11, 12, 13, 14) and/or the lid part (15) of the base body (10) is designed such, that at least one receiving pocket (19) is being formed by the side part (11, 12, 13, 14) and/or the lid part (15).
10. Security element (1) according to at least one of the preceding claims,
    characterized in that
    the security element (1) has a hood (40), a heat protection (45) and a splinter protection (55).
11. Security element (1) according to at least one of the preceding claims,
    characterized in that
    there is a heat protection (45) within the security element (1) and/or the security element (1) is surrounded by a splinter protection (55).
12. Security element (1) according to claim 10 or 11,
    characterized in that
    the splinter protection (55) and the hood (40) consist of a double-layer Kevlar fabric having a temperature resistance between 200°C and 380°C, preferably between 220°C and 390°C and particularly preferred between 250°C and 400°C.
13. Security element (1) according to claim 10 or 11,
    characterized in that
    the heat protection (45) is made from a glass fiber mat with a two-sided nylon edging, and having a temperature resistance between 200°C and 900°C, preferably between 220°C and 1000°C and particularly preferred between 250°C and 1100°C.

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