DE102021204764A1 - Multi-part support structure for a modular ballistic rebound protection - Google Patents

Abstract

The present invention relates to a multi-part support structure for modular ballistic rebound protection, in particular for a shooting range, with a front support structure, which is designed for the rear attachment of a large number of rebound-protecting plates next to one another in a grid-like manner along a first plate plane, and with a rear support structure, which is designed for rear attachment a plurality of bullet-resistant panels is formed next to one another in a grid-like manner along a second panel level, the second panel level being arranged at a distance from the first panel level behind the first panel level in relation to a shot direction.

Description

FIELD OF THE INVENTION

The present invention relates to a multi-part supporting structure for a modular ballistic rebound protection, in particular for a shooting range.

TECHNICAL BACKGROUND

A shooting range is a shooting range for practice and competition shooting, which is used by private individuals and various professional groups such as hunters, the military and the police for training with firearms of all kinds. A shooting range can be designed as an open shooting range, i.e. as an outdoor area, as a partially covered facility or as a closed indoor shooting range or shooting hall. Particularly in the case of shooting ranges used by the military, large caliber weapons with damaging ammunition are used, among other things. Contamination of the surroundings of shooting targets should be avoided as far as possible. On the one hand, this affects the concentrations of heavy metals and other pollutants that are released into the air. On the other hand, corresponding residues from the fired projectiles can remain in the shooting range facilities.

For example, different screens made of wood, concrete and/or steel are used to cover endangered objects and parts of the terrain against direct and rebound shots, e.g. high screens, low screens, side screens, close-up screens, etc. which can make the maintenance of these systems very costly and time-consuming. In general, it is important to keep the risk of rebounding projectiles and/or fragments as low as possible, not least to protect the user.

Furthermore, the back of shooting targets is typically backed with bullet traps (bullet traps) or other bullet trapping devices in order to absorb the kinetic energy of penetrating or misdirected bullets and to catch them safely. Here, too, it is important to keep rebound and heavy metal contamination to a minimum while at the same time minimizing downtime.

The pamphlet DE 20 2009 014 278 U1 describes a bullet trap for shooting ranges with a bullet plate. Among other things, a simple emptying of collected projectiles should be made possible in order to keep follow-up costs in connection with the disposal of possibly contaminating residues low. For this purpose, the penetration plate covers a bullet catching device with a deflector plate made of special steel at a specified distance. The bullet plate comprises a sealing layer with a plastic elastomer, in particular a rubber, which closes again after a projectile has been shot through, at least to such an extent that extensive dust-tightness is ensured. This property is important to contain lead contamination within a confined space.

The pamphlet DE 20 2019 001 557 U1 describes a bullet trap for a shooting range, which comprises a plate made of an elastomer on the entry side, which is arranged at a predetermined distance in front of a steel rear wall.

SUMMARY OF THE INVENTION

Against this background, the present invention is based on the object of finding solutions for protecting shooting ranges with improved safety and environmental friendliness while at the same time lower maintenance costs.

According to the invention, this object is achieved by a multi-part support structure having the features of claim 1.

• - Mehrteilige Tragkonstruktion für eine modulare ballistische Rückprallsicherung, insbesondere für einen Schießstand, mit einer vorderen Tragstruktur, welche zur rückseitigen Befestigung einer Vielzahl rückprallsichernder Platten rasterartig nebeneinander entlang einer ersten Plattenebene ausgebildet ist, und mit einer hinteren Tragstruktur, welche zur rückseitigen Befestigung einer Vielzahl durchschusshemmender Platten rasterartig nebeneinander entlang einer zweiten Plattenebene ausgebildet ist, wobei die zweite Plattenebene bezogen auf eine Schussrichtung hinter der ersten Plattenebene mit einem Ebenenabstand beabstandet zu der ersten Plattenebene angeordnet ist.

Accordingly, it is provided:

• - Multi-part support structure for a modular ballistic rebound protection, in particular for a shooting range, with a front support structure, which is designed for the rear attachment of a large number of recoil-proof plates next to one another in a grid-like manner along a first plate plane, and with a rear support structure, which is designed for the rear attachment of a large number of bullet-resistant plates is formed in a grid-like manner next to one another along a second plane of the plate, the second plane of the plate being arranged at a distance from the first plane of the plate with respect to a weft direction behind the first plane of the plate.

One of the ideas underlying the present invention is to enable a modularly designed rebound and fragmentation or projectile restraint protection in which a plurality of plates is arranged in the manner of a grid, ie vertically and horizontally in succession as a distributed regular pattern along a two-dimensional plane. For this purpose, the present invention provides a suitable multi-part support system to mount the panels in absorb and / or attach in an exchangeable way. The individual plates can thus be replaced and/or serviced separately from one another depending on their respective degree of destruction and/or damage, which significantly simplifies the maintenance of the overall system since the entire system does not necessarily have to be renewed in the event of damage and/or contamination. This not only minimizes the downtime of the system, but ultimately also has a positive effect on the safety and environmental compatibility of the same, since residues that are harmful to the environment and safety, as well as damage, can be eliminated quickly.

Here, the present support system provides attachment points in two different levels for two different types of panels. Anti-recoil plates form a first grid facing the shooter through which the projectiles are intended to pass. Seen from the shooter behind the first grid, there is a second grid of bullet-resistant plates, which should slow down the projectiles significantly or even stop them completely. The distance between the two grids as well as the materials and dimensions of both plate types and the associated support structures are selected in a correspondingly suitable manner so that an undesired re-penetration of a projectile or projectile residues back through the rebound-protecting plane (i.e. the rebound-protecting plates together with the front support structure ) is avoided after impact with the bullet-resistant plane (unless the projectiles already pass through the bullet-resistant plates anyway). Rebounds and splinters are thus kept away from the shooting range area in front of the anti-rebound grid.

The individual plates can be manufactured integrally from a single material. Alternatively, it can also be advantageous to use a layered structure made of several different materials. It goes without saying here that it is possible in principle and, depending on the application, can also be advantageous to form a plurality of layers each from anti-rebound panels and/or bullet-resistant panels. In principle, the two parts of the support system can have correspondingly different material properties. Furthermore, the support structure can be appropriately dimensioned and designed so that different panel thicknesses and panel constructions can be attached for different applications.

The system is suitable for both outdoor and indoor use and can be built and installed in different geometric configurations, in principle also in multiple layers, and for projectiles, ammunition and calibers of all kinds. The system can not only be set up or provided as an independent construction, but can also be attached to existing structures (e.g. to wall components made of reinforced concrete, masonry and/or in modular timber construction or timber hybrid construction). On the one hand, the bullet-resistant plate layer can thus function as an impact or puncture protection for projectiles. On the other hand, a wall, ceiling or structure that already exists behind the bullet-resistant panels for other reasons can also serve as the final fall arrest system. In particular, the modular and, if desired, multi-layer structure of the system enables the widest possible use, both with regard to the types of projectiles that can be used and conceivable installation and/or shoring variants. Due to its modular structure, the system is suitable for mobile construction or air transport, among other things.

The application is not limited to shooting ranges. Furthermore, the system can be used for a free-standing and/mobile ballistic protection element or for the paneling of facades and components for ballistic protection against the effects of ammunition and for protection against rebound and rebound of projectiles and projectile fragments.

Different suitable (composite) materials can be used for the anti-rebound and bullet-resistant panels, which can also be combined with one another in multiple layers. Furthermore, the panels can have suitable surface properties, e.g. anti-reflection, sound-absorbing, sound-reflecting, radar-dampening, etc. The surfaces can be processed (e.g. roughness, different profiling) and/or have one or more angles of inclination (relative to the shot direction), e.g. around the reflection of sound waves and thus have a beneficial effect on noise development.

Advantageous refinements and developments result from the further dependent claims and from the description with reference to the figures of the drawing.

According to a development, the front support structure and/or the rear support structure can comprise a multiplicity of vertical and/or horizontal struts.

In this embodiment, the support structure is therefore designed in a way that saves as much material and is as lightweight as possible. The anti-rebound and bullet-resistant plates can each be attached to corresponding struts in an exchangeable manner, for example by means of corresponding suitable fastening means.

For example, the front supporting structure can comprise a multiplicity of vertically arranged struts and/or rods, which are arranged next to one another at regular intervals in the first panel plane behind the anti-rebound panels (in relation to a firing direction).

Likewise, the rear supporting structure can comprise a multiplicity of vertically arranged struts and/or rods, which are arranged next to one another at regular intervals in the second plate level behind the bullet-resistant plates (in relation to a shot direction).

According to a development, the front support structure can include aluminum.

For example, vertical extruded aluminum profiles can be placed side by side. Aluminum is characterized by its low weight (no material with high hardness is required in the area of the front support structure). Aluminum is rather soft and therefore less prone to splintering than other metals. However, it goes without saying that other materials, for example other light metals, can also be used.

According to a development, the front support structure can have front connection interfaces, which are designed to accommodate front connection elements for repeatedly releasably mounting the anti-rebound panels on the front support structure.

In this way, a quick-change system for replacing or exchanging individual rebound-protecting plates can be implemented in order to be able to replace them as quickly, easily and inexpensively as possible, for example in the event of damage. Likewise, all plates of the recoil protection can be replaced relatively quickly, e.g. to reconfigure the system for a different application (different ammunition).

In a specific example, it can be provided that the anti-rebound panels are screwed to the front support structure.

According to a development, the front connecting elements can be made of plastic.

Plastic composite materials or hybrid materials can also be used. Plastic is particularly well-suited for the front support structure because it does not shed chips or bullet fragments upon hits on or near the mounting points.

According to a development, the rear support structure can include steel.

For example, vertical steel tubes and/or steel struts can be set up side by side. Steel is characterized by a high degree of hardness and toughness and is therefore particularly suitable for bullet-resistant areas.

According to a development, the rear support structure can have rear connection interfaces, which are designed to accommodate rear connection elements for repeatedly releasably mounting the bullet-resistant plates and/or the front support structure on the rear support structure.

A quick-change system for exchanging or exchanging individual plates is thus also provided for the bullet-resistant plates.

For example, it can be provided that the bullet-resistant plates and/or the front support structure are screwed to the rear support structure.

According to a development, the rear connecting elements can be made of metal. In particular, the rear connecting elements can be made of steel.

The connecting elements of the rear and front support structures can thus be made of bullet-resistant or rebound-proof materials corresponding to the plates of the respective layer.

According to a further development, the support structure can be designed to accommodate rebound-protecting panels and/or bullet-resistant panels of different thicknesses, with the thicknesses and/or the plane spacing being able to be defined as a function of a projectile type.

The penetration behavior of a projectile through the plates is largely determined by the thickness of the respective plates and the material used. By suitably matching the plate thicknesses and spacing, it can be ensured for a given projectile, e.g. ammunition of a specific caliber, that the Projectile can penetrate the rebound-protecting plates, but is possibly completely stopped at the bullet-resistant plates. At the same time, the distance between the planes can be selected to be sufficiently large, so that splinters and/or ricochets from the bullet-resistant plates do not have sufficient remaining energy to be able to re-enter the rebound-protecting layer or even pass through it. The system is thus scalable to a certain extent for any type of ammunition, for example for different short and long gun calibres, in that the plane spacing and, if necessary, the thicknesses, ie the material strengths, are set depending on the ammunition.

According to a further development, the support structure can be designed to accommodate rebound-protecting plates and/or bullet-resistant plates of the same dimensions.

For example, the anti-rebound panels and/or the bullet resistant panels may be in the form of rectangles or squares of identical dimensions, with the support structures being appropriately sized to accommodate the panels.

According to a further development, the support structure can also be designed for fastening a large number of rebound-proof joint covers and/or a large number of bullet-resistant joint covers. The anti-rebound joint covers can cover and/or cover expansion joints between the anti-rebound panels in the first panel level. The bullet-resistant joint covers cover and/or back expansion joints between the anti-rebound panels in the second panel level.

Expansion joints can be left between the individual panels, i.e. both between the anti-rebound panels in the first panel level and between the bullet-resistant panels in the second panel level, in order to give the panels sufficient leeway for material-related expansion. In order to still achieve full bullet and rebound protection, these gaps can be covered with plates of the same or a similar material. For example, the panels may be formed as elongate rectangles and each arranged horizontally or vertically to cover the appropriate spaces. The panels can be arranged either in front of or behind the expansion joints in relation to the weft direction, i.e. as a cover or backing. Here, the anti-rebound panels acting as joint covers can overlap with the other anti-rebound panels in the first panel level, so that no gaps arise even with large material expansions.

According to a development, anti-rebound joint covers can be integrated into the front support structure to cover expansion joints between the anti-rebound panels, which are made of an anti-rebound material.

These integrated anti-rebound joint backings can also be plate-shaped and, among other things, supplement the anti-rebound plates, e.g. in the case of gaps and/or in fastening areas, and be made of the same or a similar material.

According to a further development, the anti-rebound material can be designed to at least partially close again behind a projectile after it has been penetrated by the projectile.

The material thus ensures that the rebound-proof joint backings open when a projectile penetrates and close again to a considerable extent after the passage. This ensures that projectile parts and/or projectile fragments that fly back cannot recede through the rebound-protecting joint backings. With a suitable choice of material and material thickness, it can be achieved that the joint backings close again more or less completely, even with a large number of penetrations.

For example, the bullet opening created after a projectile has been shot through can close again by at least 60%, 70%, 80% or even 90%, based on a bullet cross-section. Plate thickness and elasticity of the material used can be chosen accordingly to ensure these properties.

If the bullet-resistant joint backings are designed in such a way that the bullets can be stopped completely by the bullet-resistant plates, the plate system can form a kind of bullet trap. The projectiles pass through the anti-rebound plates, which then close again, are then stopped by the bullet-resistant plates and then fall to the ground between the two plate grids. For this purpose, the system can be designed with a catchment area for ammunition and projectile fragments underneath the plates.

According to a development, the anti-rebound material can include a plastic. In particular, the anti-rebound material can include polyethylene.

In principle it is possible that the anti-rebound plates or joint backings are each manufactured monolithically from such a material. As an alternative, however, panels in a composite construction are also conceivable. Furthermore, plates made of a first material can be coated with a second material in order to achieve the corresponding properties. For example, a carrier plate made of a first plastic can be coated with a second plastic.

• - Dichte: 0,83 bis 1,1 g/cm³
• - Thermische Längenausdehnungszahl: 200×10^-4 bis 200×10^-8
• - Vicat-Erweichungstemperatur 70°C bis 90°C nach DIN EN IOS 306
• - Mechanische Eigenschaften (bei ca. Zimmertemperatur):
  • o Streckspannung: 1,7×10⁷ Pa bis 2,3×10⁷ Pa
  • o Elastizitätsmodul: 0,55 GPa bis 0,98 GPa
  • o Streckdehnung: 9 bis 18%
  • o Shore-Härte: 50-74 nach ISO/DINEN
  • o Nominelle Bruchdehnung: 40% bis 400%

Certain polyethylenes are particularly suitable for the present application, for example ultra-high-molecular-weight polyethylene. These are characterized by particularly high impact strength compared to most other thermoplastics. These materials do not splinter or tear out. There is also little hazardous waste that is harmful to the environment. Characteristics of suitable thermoplastics include, for example:

• - Density: 0.83 to 1.1 g/ ^cm3
• - Thermal expansion coefficient: 200×10 ^-4 to 200×10 ^-8
• - Vicat softening point 70°C to 90°C according to DIN EN IOS 306
• - Mechanical properties (at approx. room temperature):
  • o Yield stress: 1.7×10 ⁷ Pa to 2.3×10 ⁷ Pa
  • o Modulus of elasticity: 0.55 GPa to 0.98 GPa
  • o Elongation: 9 to 18%
  • o Shore hardness: 50-74 according to ISO/DINEN
  • o Nominal elongation at break: 40% to 400%

However, it goes without saying that thermoplastics other than polyethylene can also be used. In principle, any plastic or material or combination of materials is suitable, provided it has the ability to open up at the point of penetration when a body penetrates and to close largely after the material has been penetrated by the penetration body. This, in combination with the plate thickness, can ensure that no indenter, larger fragments of the indenter or spalling of material reach the front of the assembly.

The materials can be chosen to be weatherproof and UV-resistant. By adding color pigments, any desired material coloring can be achieved without changing the material properties.

According to a development, the support structure can be designed to be self-supporting.

For example, a self-supporting mounted arrangement can be used in a mobile manner. This allows, for example, ballistic walls several hundred meters long to be built quickly and easily so that shooters can practice shooting from and around vehicles. Assembly and disassembly take place without permanent damage at the installation site. The system is also suitable as a backing for shooting training, for example from a helicopter or for long-range shooting, since the installation angle is also scalable, i.e. the system is scalable for firing angle and distance.

According to a development, the support structure can be designed as a mobile unit.

For example, the anti-backlash device may be mounted on wheels or rails.

According to a further development, the rear support structure can be designed with rear connection interfaces for fastening the support structure to a rear structure.

For example, the system can serve as a height and/or side screen for a shooting range or at least as a cladding or protective paneling for such a screen or for a building, a facade, etc. The system can also be used as a stationary or mobile side wall, for example to protect shooters on indoor and outdoor shooting ranges from rebounds and ricochets from shrapnel, e.g. in the course of CQC or CQB training (English: "Close Quarters Combat" or "Close Quarters Battle").

The above configurations and developments can be combined with one another as desired, insofar as this makes sense. Further possible configurations, developments and implementations of the invention also include combinations of features of the invention described above or below with regard to the exemplary embodiments that are not explicitly mentioned. In particular, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention.

character list

• 1 eine schematische Frontansicht einer modularen ballistischen Rückprallsicherung mit einer Tragkonstruktion gemäß einer Ausführungsform der Erfindung;
• 2 eine vertikale Schnittansicht der Rückprallsicherung aus 1;
• 3 eine horizontale Schnittansicht der Rückprallsicherung aus 1; und
• 4-9 schematische Frontansichten der Rückprallsicherung aus 1 während der Montage.

The present invention is explained in more detail below with reference to the exemplary embodiments given in the schematic figures of the drawing. They show:

• 1 a schematic front view of a modular ballistic rebound protection with a support structure according to an embodiment of the invention;
• 2 Figure 12 shows a vertical sectional view of the rebound device 1 ;
• 3 Figure 12 shows a horizontal sectional view of the rebound device 1 ; and
• 4-9 schematic front views of the rebound protection 1 during assembly.

The accompanying drawing figures are intended to provide a further understanding of embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the foregoing advantages will become apparent by reference to the drawings. The elements of the drawings are not necessarily shown to scale with respect to one another.

In the figures of the drawing, elements, features and components that are the same, have the same function and have the same effect--unless stated otherwise--are each provided with the same reference symbols.

DESCRIPTION OF EXEMPLARY EMBODIMENTS

1 shows a schematic front view of a modular ballistic rebound protection 10 with a support structure 5 according to an embodiment of the invention. 2 and 3 show vertical and horizontal sectional views of the rebound device 1 . Show 10 for a better understanding of the structure of the anti-rebound device 4 until 9 further schematic front views of the rebound device 10 from 1 until 3 for consecutive assembly steps.

The rebound device 10 serves as protection against ricocheting projectiles and splinters as well as a projectile restraint system at a shooting range, e.g. an outdoor area or an indoor shooting range. For example, the rebound device 10 may be configured as a panel, such as a vertical panel or side panel, or it may cover at least one such panel. In addition, however, other possible uses are also provided, e.g. as planking and/or cladding for a wall or facade, e.g. a building on a shooting training facility.

In the exemplary embodiment described below, the rebound device 10 is installed in a fixed position in the shooting range. In alternative designs, however, mobile variants of this or similar rebound safety devices 10 are also conceivable, e.g. as movable rail or wheel-mounted arrangements that can be moved easily and quickly on a training ground.

The rebound safety device 10 has a large number of plates 1 , 2 which are held by a two-part supporting structure 5 made up of a front supporting structure 6 and a rear supporting structure 7 . Both the plates 1, 2 and the support structures 6, 7 are interchangeable and serve as system modules, so to speak, in order to ensure that individual parts of the system can be replaced as quickly, easily and inexpensively as possible, whether for maintenance or repair purposes, whether for reconfiguration purposes, e.g. to optimize recoil protection for a different bullet type or different ammunition.

In principle, the rebound safety device 10 is divided into two planes which are one behind the other in relation to a firing direction 12 and are each oriented vertically. In a first panel level 3, the front supporting structure 6 carries a multiplicity of identically designed, rectangular rebound-safety panels 1, which are arranged next to one another in a grid-like manner along the first panel level 3. In other words, the plates 1 are positioned horizontally and vertically at regular intervals from each other. As can be seen from the figures, the panels 1 are each fastened to the front supporting structure 6 on their rear side (relative to the weft direction 12). In a second panel level 4, the rear support structure 7 carries a large number of identically designed, square bullet-resistant panels 2, also in the form of a two-dimensional grid next to one another along the second panel level 4. The first panel level 3 and the second panel level 4 have a fixed, predetermined, relative level spacing 9 on. Finally, the rear support structure 7 is in turn attached to a rear structure 8, e.g. a wall, a panel front made of reinforced concrete, in modular wood construction or wood hybrid construction, etc.

As already mentioned, the rebound safety device 10 is intended on the one hand to prevent ricocheting projectiles and/or projectile fragments, splinters or the like from entering the area of use of the shooting range in front of the rebound safety device 10 . On the other hand, the rebound protection should be 10 provide an environmentally friendly and low-maintenance protection solution for a shooting range, in which as little as possible ammunition residues get stuck in the structure. For this purpose, two different types of plates are advantageously combined with one another.

The anti-impact panels 1 in the first plane 3 of panels are formed of an anti-impact material to be penetrated by a projectile of a given type of projectile. The rebound-proofing material is designed in particular to close again behind the projectile to a significant extent, for example up to 80% or more based on a cross-section of the bullet through the plate 1 created by the projectile. Suitable materials that meet these properties , include natural rubber and certain plastics, among others. For example, many ultra high molecular weight polyethylenes are suitable for the present application.

The bullet-resistant plates 2 are in turn made of a bullet-resistant material in order to receive and decelerate or completely stop the projectile from the recoil-resistant plates 1 . In particular, the bullet-resistant material can be armored steel.

The thicknesses of the anti-recoil plates 1 and the anti-ballistic plates 2 can now be adjusted together with the distance between levels 9 for certain types of ammunition such that projectiles of this type penetrate the anti-recoil plates 1 and are then stopped by the anti-ballistic plates 2. The level distance 9 between the two plate types, together with the reclosing of the rebound protection plates 1, ensures that neither ricochets nor projectile fragments can get back in front of the rebound protection 10 from the area between the two plate types. Due to the choice of armored steel as the bullet-resistant material, no projectiles get stuck in the bullet-resistant plates 2 either. Instead, the bullet remnants fall between the two plate planes 3, 4 and can fall there, for example, into a bullet collection container or the like set up for this purpose (not shown). In the present case, the rear structure 8 is therefore only used to stabilize the system, but is not absolutely necessary from a safety point of view, as will also become clear from the following.

As can be seen from the figures, lateral expansion joints 13 have been left between both the anti-rebound panels 1 and the bullet-resistant panels 2 (both in the horizontal and vertical direction). These should in particular take into account the expansion caused by the material, for example due to temperature. In order to nevertheless ensure complete bullet and rebound protection, the expansion joints 13 between the rebound-proof plates 1 and the bullet-resistant plates 2 are covered by corresponding rebound-proof joint covers 1a, 6d, 6e and bullet-resistant joint covers 2a. The anti-rebound joint covers 1a, 6d, 6e can also be designed as panels, with a similar or even the same material with the same material thickness as for the anti-rebound panels 1 can be used. This also applies to the bullet-resistant joint covers 2a, which, like the bullet-resistant plates 2, can be designed as steel or armored steel plates.

In the exemplary embodiment shown in the figures, on the one hand rebound-proof joint covers 1a and bullet-resistant joint covers 2a are arranged as horizontal, elongated panels in front of the respective rebound-proof and bullet-resistant panels 1, 2 with a slight overlap. It goes without saying that this is purely by way of example, and such joint covers 1a, 2a can also be arranged vertically and/or as joint backings behind the respective panels 1, 2.

Furthermore, in the exemplary embodiment of the 1 ff. anti-rebound joint covers 6d, 6e integrated into the front support structure 6. First rebound-proof joint covers 6d are formed as vertically extending elongated plates (to cover a vertical joint area between two adjacent rebound-proof panels 1), while second rebound-proof joint covers 6e have a square shape (to cover a corner area between four adjacent rebound-proof panels 1).

In the case of the bullet-resistant components, on the other hand, the rear support structure 7 serves as a bullet-resistant joint cover (see below).

Both the anti-rebound panels 1 and joint covers 1a, 6d, 6e and the bullet-resistant panels 2 and joint covers 2a are fastened to the supporting structure 5. The anti-rebound joint covers 1a, 6d, 6e are together with the anti-rebound plates 1 is attached to the front support structure 6, while the bullet-resistant joint covers 2a and the bullet-resistant plates 2 are fixed to the rear support structure 7. All of these plate-shaped components are mounted on the supporting structure 5 so that they can be replaced individually and can therefore also be individually exchanged and replaced, for example for repair purposes.

In the embodiment shown as an example, the front support structure 6 comprises a multiplicity of vertical struts 6c made of aluminum (e.g. extruded aluminum profiles). The rear support structure 7 also has vertical struts 7c. However, in this example they are made of steel (e.g. steel pipes). Due to their hardness, the steel struts 7c of the rear support structure 7 can also function directly as joint backings for the expansion joints 13 between the bullet-resistant plates 2.

For attaching the rebound protection panels 1 and joint covers 1a, 6d, 6e, the front support structure 6 has front connection interfaces 6a, which are used to receive front connection elements 6b for repeatedly releasably mounting the rebound protection plates 1 and the rebound protection joint covers 1a, 6d, 6e on the front Support structure 6 are formed. For example, the connecting elements 6b can be bolts or screws or the like, and the connecting interfaces 6a can be corresponding, complementarily shaped receptacles.

So that hits on or near the attachment points or attachment areas do not produce any spalling or projectile fragments, the front connecting elements 6b are made of plastic, for example of the same material as the anti-rebound plates 1 and joint covers 1a. In other words, the attachment also has anti-rebound properties.

Similarly, the rear support structure 7 has rear connection interfaces 7a, which are designed to accommodate rear connection elements 7b for repeatedly releasably mounting the bullet-resistant plates 2, the bullet-resistant joint covers 2a and/or the front support structure 6 on the rear support structure 7. In this case, the connecting elements 7b can be formed from a correspondingly suitable material for the bullet-resistant layer, e.g. likewise steel. This means in particular that the fastening elements for the respective layers also have anti-rebound or bullet-resistant properties.

Referring to 4 ff. will now briefly describe the assembly sequence for the rebound safety device 1 until 3 described.

First in 4 the rear support struts 7c of the rear support structure 7 set up, for example by being mounted on the rear structure 8, for example a reinforced concrete panel (not shown here). Then in 5 the bullet-resistant plates 2 fixed to the rear support struts 7c. In the exemplary embodiment shown, the bullet-resistant plates 2 are each clamped between two rear support struts 7c by means of mounting plates 11 . The mounting plates 11 are in turn fixed to connection interfaces 7a of the rear support struts 7c via suitable connecting elements 7b. The bullet-resistant panels 2 are separated from one another both in the horizontal direction and in the vertical direction by expansion joints 13 . In the vertical direction, these expansion joints 13 are backed by the rear support struts 7c.

In 6 In a subsequent step, horizontal bullet-resistant joint covers 2a are placed over the horizontal expansion joints 13 in such a way that each bullet-resistant joint cover 2a overlaps two adjacent horizontal rows of bullet-resistant panels 2. The bullet-resistant joint covers 2a are also fixed to connection interfaces 7a of the rear support struts 7c by means of suitable connecting elements 7b, for example steel screws or bolts. The result is a hundred percent coverage of all expansion joints 13.

The mounting plates 11 can then be removed again and the vertical aluminum profiles of the front support struts 6c can be attached to the rear support struts 7c, as shown in 7 you can see. The bullet-resistant panels 2 are now clamped to the rear support structure 7 via the bullet-resistant joint covers 2a.

In 8th In a further step, the anti-rebound plates 1 are now attached to two adjacent front support struts 6c in that rear connecting elements 6b made of plastic are introduced into associated connection interfaces 6a of the front support struts 6c, for example plastic screws. For this purpose, the front support struts 6c can be suitably milled out and/or drilled for the simplified accommodation of the front connecting elements 6b. About that In addition, height fixing elements 6f for fixing the height of the front connecting elements 6b can be introduced laterally into the front support struts 6c. The height-fixing elements 6f can, for example, be screws made of metal, eg stainless steel or aluminum.

Horizontal and vertical expansion joints 13 are also present between the anti-rebound panels 1 . The vertical expansion joints 13 are backed by vertical rebound-securing joint covers 6d, 6e, which are integrated into the front support struts 6c. For this purpose, the support struts 6c can be designed as hollow profiles, for example (cf. 3 ). As 2 and 3 two different types of anti-rebound joint covers 6d, 6e are provided for this purpose. A first integral rebound seam cover 6d is formed as an elongate narrow sheet of rebound material and runs along the vertical extent of the respective front support strut 6c. Furthermore, in the areas where each four of the anti-rebound plates 1 meet, respectively second integrated anti-rebound joint covers 6e are attached, which have a substantially square shape. Both integrated anti-rebound joint covers 6d, 6e can be plate-shaped from anti-rebound material and attached to associated connection interfaces 6a on the front support struts 6c via corresponding front connecting elements 6b made of plastic. On the other hand, the first and second integrated anti-rebound seam covers 6d, 6e may be fixed in height by the above-mentioned height fixing members 6f.

Finally, in 9 horizontal anti-rebound joint covers 1a placed on the horizontal expansion joints 13 with an overlap over each two adjacent horizontal rows of anti-rebound panels 1 and attached to the front support struts 6c (also via plastic fasteners 6b). As can be seen from the figures, the rebound-proof panels 1 in this exemplary embodiment are rectangular and designed with a larger area than the bullet-resistant panels 2 .

However, in other embodiments it is also alternatively possible to design the bullet-resistant plates 2 to be larger.

Depending on the design, it can also be advantageous or sensible to provide only the first grid with the rebound-protecting plates 1 and the associated front support structure 6 in a region along the surface extent of the rebound safety device 10, without bullet-resistant plates 2 and the rear support structure 7 necessarily being present behind them must, for example for reasons of weight in an elevated and more difficult to access area of the rebound safety device 10, e.g. in an upper area of a height screen. In this case, the rebound-protecting plates 1 together with the front support structure 6 can be attached, for example, directly to the rear structure 8 or to a monolithic support plate (e.g. made of concrete/reinforced concrete or steel), which then acts as a bullet-resistant or bullet-preventing device in this partial area of the rebound safety device 10 can function. On the other hand, the other areas along the surface extent of the rebound safety device 10 can continue to have both grids, i.e. both the rebound safety plates 1 and the bullet-resistant plates 2.

The described arrangement and combination of materials thus solve several problems at once. It not only keeps rebounds and fragments away from the front of the machine (i.e. the area of the machine where users enter). The solution is also extremely environmentally friendly, since all the materials used are recyclable (plastics, steel, aluminium). Due to the use of armored steel instead of structural steel, for example, there are no penetrations, so that the structure behind is not significantly stressed. The system is therefore completely rebound and bulletproof. It goes without saying, however, that in principle other suitable materials can also be used both for the plates 1 , 2 and for the support structures 6 , 7 . For example, composite and/or hybrid materials with or without a multi-layer structure can be advantageous.

Furthermore, the system is extremely easy to maintain, since the individual panels 1, 2 and joint covers 1a, 2a can be replaced easily, quickly and inexpensively. This significantly reduces the downtime of shooting ranges compared to conventional solutions. The system can be scaled to certain ammunition types, eg calibers, by suitably selecting the thicknesses or the material strengths of the plates 1, 2 and the joint covers 1a, 2a and the plane spacing 9. In particular, the chosen configuration can be changed quickly by changing the panels 1, 2 and/or the joint covers 1a, 2a. It should be noted here that the entire panel arrangement, including joint covers, can also be implemented so that it can be easily moved by providing the appropriate connection interfaces 6a, 7a on the supporting structure 5, which enable variable and flexible attachment of the components, so that panels with different weights, material thicknesses and /or area extensions at different positions and/or can be attached in different orientations.

In the foregoing Detailed Description, various features have been grouped together in one or more examples to improve the rigor of presentation. However, it should be understood that the above description is merely illustrative and in no way restrictive. It is intended to cover all alternatives, modifications, and equivalents of the various features and embodiments. Many other examples will be immediately and immediately apparent to those skilled in the art in view of the above description.

The exemplary embodiments were selected and described in order to be able to present the principles on which the invention is based and its possible applications in practice in the best possible way. This enables those skilled in the art to optimally modify and use the invention and its various exemplary embodiments in relation to the intended application. In the claims and the description, the terms “including” and “having” are used as neutral terms for the corresponding terms “comprising”. Furthermore, the use of the terms “a”, “an” and “an” should not fundamentally exclude a plurality of features and components described in this way.

Reference List

1

anti-rebound plate

1a

anti-rebound joint cover

2

bulletproof plate

2a

bullet-resistant joint cover

3

first plate level

4

second plate level

5

supporting structure

6

front support structure

6a

front connection interface

6b

front connector

6c

front support brace

6d

first integrated anti-rebound seam cover

6e

second integrated anti-rebound seam cover

6f

height fixation element

7

rear support structure

7a

rear connection interface

7b

rear connector

7c

rear support brace

8th

back structure

8a

rear connection interface

8b

rear connector

9

level spacing

10

rebound protection

11

mounting plate

12

shot direction

13

expansion joint

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 202009014278 U1 [0005]
• DE 202019001557 U1 [0006]

Claims (17)

Multi-part support structure (5) for a modular ballistic rebound protection (10), in particular for a shooting range, with a front support structure (6) which is designed for the rear attachment of a large number of rebound-protection plates (1) next to one another in a grid-like manner along a first plate level (3), and with a rear support structure (7), which is designed for the rear fastening of a large number of bullet-resistant panels (2) next to one another in a grid-like manner along a second panel level (4), the second panel level (4) being behind the first panel level in relation to a weft direction (12). (3) with a level spacing (9) spaced from the first plate level (3) is arranged. Supporting structure (5) according to claim 1 , characterized in that the front support structure (6) and/or the rear support structure (7) comprises a multiplicity of vertical and/or horizontal struts (6c, 7c). Supporting structure (5) according to claim 1 or 2 , characterized in that the front support structure (6) comprises aluminum. Supporting structure (5) according to one of Claims 1 until 3 , characterized in that the front support structure (6) has front connection interfaces (6a) which are designed to receive front connection elements (6b) for repeatedly detachable mounting of the anti-rebound panels (1) on the front support structure (6). Supporting structure (5) according to claim 4 , characterized in that the front connecting elements (6b) are made of plastic. Supporting structure (5) according to one of Claims 1 until 5 , characterized in that the rear support structure (7) comprises steel. Supporting structure (5) according to one of Claims 1 until 6 , characterized in that the rear support structure (7) has rear connection interfaces (7a) which are used to accommodate rear connection elements (7b) for repeatedly detachable assembly of the bullet-resistant plates (2) and/or the front support structure (6) on the rear support structure (7) are formed. Supporting structure (5) according to claim 7 , characterized in that the rear connecting elements (7b) are made of a metal, in particular steel. Supporting structure (5) according to one of Claims 1 until 8th , characterized in that the supporting structure (5) is designed to accommodate rebound-protecting plates (1) and/or bullet-resistant plates (2) of different thicknesses, the thicknesses and/or the plane spacing (9) being defined as a function of a projectile type. Supporting structure (5) according to one of Claims 1 until 9 , characterized in that the support structure (5) is designed to accommodate rebound-protecting plates (1) and/or bullet-resistant plates (2) of the same dimensions. Supporting structure (5) according to one of Claims 1 until 10 , characterized in that the supporting structure is also designed for fastening a large number of rebound-proof joint covers (1a, 6a, 6b) and/or a large number of bullet-resistant joint covers (2a), the rebound-proof joint covers (1a, 6a, 6b) having expansion joints (13) between cover and/or back the rebound-proof panels (1) in the first panel level (3), the bullet-resistant joint covers (2a) covering and/or backing expansion joints (13) between the rebound-proof panels (2) in the second panel level (4). Supporting structure (5) according to one of Claims 1 until 11 , characterized in that anti-rebound joint covers (6d, 6e) are integrated into the front support structure (6) to cover expansion joints (13) between the anti-rebound panels (1), which are made of an anti-rebound material. Supporting structure (5) according to claim 12 , characterized in that the anti-impact material is adapted to at least partially reclosure behind a projectile after it has been penetrated by the projectile. Supporting structure (5) according to claim 12 or 13 , characterized in that the anti-rebound material comprises a plastic, in particular polyethylene. Supporting structure (5) according to one of Claims 1 until 14 , characterized in that the supporting structure (5) is self-supporting. Supporting structure (5) according to one of Claims 1 until 15 , characterized in that the support structure (5) is designed as a mobile unit. Supporting structure (5) according to one of Claims 1 until 16 , characterized in that the rear support structure (7) is formed with rear connection interfaces (8a) for fastening the support structure (5) to a rear structure (8).

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