ES2268249T3 - PICKUP PICKUP PROVISION. - Google Patents

Abstract

Barrier for trapping bullets in a shooting gallery comprises vertical front (1) and rear (2) nets. The front net has a mesh width which is less than the diameter of the bullets and brakes them.

Description

Arrangement for pellet collection.

The invention concerns an arrangement of pellet collection for use in shooting facilities with a network arranged vertically and substantially perpendicular to the firing direction.

They are known for bullet shooting facilities projectile capture devices that are made of the most different materials The principle of action of these devices consists primarily of a braking action by the penetration of the projectiles in the material used for the Capture them. As an alternative, they are also known projectile captors built in the form of funnels in the that the projectiles are taken to a collection space by middle of guide plates arranged at an acute angle to the direction Shooting

It is also known by document DE 90 17 946 U a bullet capture facility that features a large number of flat plastic bands suspended one after another and distanced in the firing direction. The projectile crosses the bands approximately 4 to 15 mm thick, formed preferably with thermoplastic elastomers, and then loses its kinetic energy until it falls, between the plastic bands, in a collecting container arranged below them.

It is known from document DE 94 06 238 U1 a projectile grabber with a capture plate arranged transversely to the firing direction and obliquely inclined back and forth in the firing direction and with a collection channel mounted on the lower end of the sheet capture for projectiles captured by the capture plate and deflected down, in which the collection channel is inclined with respect to the horizontal and at the end of said collection channel located below as a result of the Tilt is arranged a collecting container. In this collection provision would be problematic use for pellets, since the dispersion field is considerably more great than in the case of bullet firing. By way of corresponding, despite the oblique position of the sheet capture, the angle of impact of the pellets would be partly so great they would be to fear rebounds. In addition, the capture plate it would have to be of very large dimensions, with what in the usual outdoor facilities should be taken into account considerable wind forces, etc.

It is also known by document DE 858 951 C a parabola drawer for firing posts in which they are arranged hanging freely inside the drawer, behind the target, one or several strips, ribbons, longitudinally split plates and, behind these, a plate of soft solid material, such as rubber. In this In this case, rubber plates are provided, among other elements. thinner longitudinally cleft whose grooves longitudinal extend continuously downward, so that these plates consist substantially of a plurality of narrow hanging strips next to each other that, when impacting a bullet, they can deviate individually to a small extent to the side and backward. As a consequence of the firing range to be cover, this device is not suitable for shooting with pellets that present a significantly greater dispersion.

It must be taken into account in this regard that individual projectiles present energy in front of pellets Higher kinetics at some orders of magnitude. Result from this considerable differences regarding the relevance of security, flight behavior and the force of destruction of projectiles or pellets. In addition, other differences essential are that a shot of pellets presents a dispersion and in shot shooting facilities the areas of white stretch over a space sector considerably higher. Therefore, in shooting facilities with pellets, for example for the shot to the plate or the shot to the hare tilting, projectile capture devices have to meet clearly different requirements such as shooting discipline hunting and sports.

In the usual use of shooting facilities with pellets the shot pellets fall to the ground at the end of his ballistic flight path, due to the strength of the gravity, over a relatively large area of the surface of the shooting installation. As a consequence of these immissions, originate soil contamination with the main components of pellets, namely lead, arsenic and antimony. These Soil contamination has been accepted so far by both the operators of shotgun installations with pellets as per the authorities responsible for authorizing them.

Greater environmental awareness, especially a differentiated risk analysis, has led at an increased sensitivity to the contribution of metals heavy to the ground, which has also led to initiatives laws that limit or prevent the contribution of heavy metals. The corresponding attempt is to accumulate or collect the shot shot in the most diverse ways and ways.

For example, in a shooting facility with pellets in Garlstorf has been applied on the surrounding embankment at the firing point a layer approximately 30 cm thick of Quartz sand in which the pellets and plates accumulate. The sand has a high drainage action and guarantees that the water from precipitation comes into contact only for a short time with shot. After approximately 4, 8 and 12 years, the sand, the pellets are screened and the sand is applied again. The sand is replaced after reconditioning three times, using quartz sand as a slag former in the dough heavy metal casting. The pellets screened can reuse in the circuit of valuable materials. It is disadvantageous the fact that vegetation and fragments of dishes are little desirable in the metallic melt and it is not guaranteed that keep the floor completely clean, especially in the form of heavy metals dragged by water.

It has also tried to completely seal the ground in the area of the protection embankments by means of sheets and in the floor area by asphalt or concrete. A installation of this class in Kümmerazhofen shows problems of safety and environment due to bounced pellets in the foil, especially at low temperatures, and needs an expensive subsequent cleaning of surface water with forced driving of water along the accumulation path of the pellets. Likewise, the stability of the sheet must be evaluated as critical against UV radiation. At high outside temperatures, the sheet is soft and let the pellets pierce it first and that these They then penetrate the ground.

He has also experimented with networks of plastic or metal placed on the ground. Also exists here the risk of bounced pellets and piercing shots. Further, the fact that the networks are blind and dirty are disadvantageous quickly and in this way the accumulation of shot.

About DE 295 05 310 U are known extended networks of plane on the ground at some distance in height and arranged at right angles to the ground, in which the collected pellets roll to a point of accumulation of conformity with a preset tilt. They are disadvantageous here also the high fouling of the networks and the necessary coverage of a large surface. Also, when making an impact, they deviate in part pellets in an uncontrolled way.

It is known from DE 295 12 164 U a vertically arranged flat collection device for pellets in which some boxes, for example of material of fiber of pressed wood, collect and brake the pellets. Are avoided rebounds by means of a sheet arranged in front. It is disadvantageous in this case the fact that the disposal of the material is complicated made of wood fiber, the device has a high weight and the Installation as a whole is very expensive.

It is known from document FR 2716809 A collection device for shooting facilities with arrows that it has a first fabric in which it is hooked or openwork freely hanging a second narrower mesh fabric, being able to cross the arrows the first fabric under seat to pressure in the opening of the fabric meshes, but getting caught with its arrowhead in the second freely hanging fabric and The arrow being collected like this. Since the arrowhead hooked on the second fabric deflects the second fabric that hangs freely, but in short length, the arrow experiences a moment overturning due to the impulse transmission of its energy from remaining movement This process consumes the kinetic energy remaining of the arrow and it is firmly retained in the net.

It is also known from document DE 202 04 593 U1 (which forms the basis for the preamble of claim 1) a flat material for a pickup device for shot-shooting facilities consisting of a metal cloth. In this case, the network is secured in a mounting frame and fixed to a retention device in a substantially vertical position. The pellets of the pellets are collected by the net, bounce on it or fall through it. Therefore, with an installation of this class the pellets of the pellets cannot be safely accumulated in a relatively large volume. In addition, there is an increased risk due to
rebounds

A collection provision according to the preamble of claim 1 has been constructed in a draft installation from Wilhelmshaven. A simple plastic net has been extended here on vertical uprights approximately 18 meters high. However, this provision achieves only one detention. conditioned of the pellets, but does not accumulate pellets. Many pellets cross the monolayer network. Also, you can barely master the wind loads in the high single-seater arrangement and substantially rigid.

Starting from this state of the art, the The purpose of the invention is to indicate a provision of collection in which the pellets can be safely collected They make an impact on her.

This problem is resolved with a provision of pellet collection according to claim 1.

However the mesh width of the network it allows a passage of the pellets through the net front, the pellets that impact the front net they cross this network, but, due to the smaller mesh width in compared to the diameter of the pellets, they lose a large Part of your kinetic energy. The flat collection means provided from behind in distance position in the firing direction picks up the pellets and absorbs its residual kinetic energy. The Any pellets that bounce from the collection medium are retained by the front net in the intermediate space, since its kinetic energy is not enough to cross the front net in the opposite direction to the firing direction. Due to strength of gravity, the pellets fall to the ground between the front net and the flat collection medium. As a result of the provision freely hanging from the front net, the load of shock when impacting a load of pellets on the net. Be take care of the suspension of the network and avoid bounces.

In particular, with a mesh width of the front net less than or equal to the diameter of the pellets is get an effective braking of the passing pellets.

When the front net and the collection means plane are joined with each other in their lower edges through a means of accumulation made of flat material not traversible by pellets, the pellets that fall between the collection medium and the network as a result of the force of gravity are collected on the medium of flat accumulation. This avoids a large degree of soil contamination with pellets. The pellets collected in the collector medium is prepared, without fouling, for its reuse

However, between the front network and the flat collection means are provided in substantially position parallel to them one or more central collection means of flat configuration, the collection arrangement can be adapted to different types of pellets and positioning distances of the shooter. Preferably, the central collection means are configured as networks arranged hanging freely. When used with a collector medium, the central networks end with their lower edge freely disposed above said means manifold.

When the flat collection medium is a sheet freely hanging or a freely hanging net with a width of mesh smaller than the diameter of the balls that form the pellets, the residual kinetic energy of the pellets when impacting the freely hanging sheet or net is absorbed without loads of excessive shock. Due to the small residual kinetic energy of the pellets braked by the front net, these no longer cross the net with a mesh width less than the diameter of the shot. The sheet provided alternately as a means of collection is not destroyed either due to the only small energy pelletics kinetics.

As an alternative, the flat collection medium is a wall whose surface exposed to the shot is built preferably in the form of fibrous wood, plastic or material foamed, and shot pellets are safely retained. To avoid unwanted rebounds, the wall may carry a suitable coating. Also, to reduce the immissions of noise, the wall is preferably covered with an insulating layer, although this does not prevent after the impact of the pellets a fall of these conditioned by the force of gravity.

For both flat collection means alternatives, that is, the net or the wall, a closure is guaranteed impeccable of the shooting range from the point of view of the legislation applicable to your authorization. Therefore, behind a provision of this class is a danger free space even while shooting exercises are being developed. The middle flat collection, especially in the form of a sheet, can also assume a control function regarding whether the pellets They go through this collection provision.

Preferably, it is provided in front of the network forward, considered in the firing direction, a means of bounce capture, presenting the bounce capture medium at least one curtain of threads with or without cross joints between the threads. Therefore, with the help of the capture medium you can prevent possible rebounds from the front net with a large unwanted surface distribution in front of the layout of collection. In this case, the capture means for bounces in the form of a curtain of threads or a curtain of threads with joints transverse acts as a valve that leaves free passage in the shooting direction. For example, the thread curtain may be formed by especially elastic threads. The thread curtain with cross joints can also be configured as a class special fabric or net, being provided next to the filaments vertical more closely contiguous a few short joints transverse individualized, preferably arranged in positions declared relative to each other.

However the front network, the central network and / or the flat collection means configured as a network consist of a plastic net, a small weight arrangement is provided and high flexibility. A PVC coated polyester fabric presents, due to the support fabric, a tear resistance Enough to stop the pellets. PVC coating makes that the network is very insensitive to influences enviroment. You can also use metal networks or networks of natural fibers, carbon or ceramic.

When the front net has a width of mesh greater than that of the central network and / or the collection medium configured in the form of a network, it is avoided to a great extent that the pellets that impact the network are already retained there. Preferably, substantially all the pellets they make impact must cross the front net, but must yield then a considerable part of its kinetic energy. The younger mesh width of the subsequent network then provides a desired complete retention of the pellets that make impact now there with reduced kinetic energy.

The mesh width of the networks in the pick-up arrangement can be chosen variable in accordance with the purpose of use, and the same happens especially with the positioning distance of the arrangement with respect to shooter, the diameter of the pellets and their material. In practical tests have been proven that when the mesh width of the front net is approximately 0.5 mm and the mesh width of the central network and / or of the collection medium configured as a network It is approximately 1.0 mm smaller than the diameter of the pellets smaller employees, an optimal collection function is achieved. Surprisingly, the pellets that impact the network front cross this network without destroying it, despite the width of smaller mesh in 0.5 mm with respect to the diameter of the pellets. In the distance network immediately following with a mesh width smaller by another 0.5 mm the pellets are substantially retained. However, depending on the distance of the shooter, they can be provided also one or more additional core networks that also have preferably a mesh width less than about 1.0 mm than the diameter of the pellets used.

To get the most effective braking possible of the pellets when crossing the front network, this network front has a weight per unit area greater than that of the central network or the collection network configured as a net.

Since maintaining a distance sufficient between the front net and the collection means Subsequent is essential for the retention function and collection of the provision, are planned in a form of realization of spacers between the front network and the network central and / or freely hanging collection means. The spacers prevent networks from being placed directly one at side by side, for example by the influence of the wind. Since the spacers preferably guarantee only a limitation Release the distance between a minimum distance and a distance maximum and the nets are arranged hanging freely, you get a sufficiently flexible arrangement with a function of shock absorption.

Preferably, the flat collector means is formed by a canvas fabric. As an alternative, it can be used also a preferably smooth network, since this makes a possible free passage of rainfall to the ground and the pellets accumulated in the collecting medium are not excessively requested with precipitation water. A polyester fabric eventually coated with PVC throughout its surface allows a technically simple welding with the front net and the middle of Collection made of an equivalent material. In addition, the canvas fabric or the network is resistant to environmental influences ambient.

When the half collector is in advanced position below the front net in the direction of shot, the possible pellets collected in the front net, but that does not pass through and fall due to the force of gravity, They can be collected with the collector medium.

Preferably, the collecting means is shaped of trough. A formed baseline is arranged in position substantially parallel to the surface extension and with a slight inclination with respect to the horizontal. In the trough form the retained pellets accumulate from the collecting medium and these they roll, due to the force of gravity, along the line of slightly inclined base with respect to the horizontal until reach one end of the collecting means, in which it is arranged, for example, a collecting container for pellets.

When the collection provision is arranged in the first third of the ballistic flight path of the pellets in the shooting facility, the disposal arrangement it is positioned clearly in front of the highest point of the ballistic trajectory of pellet flight. By way of corresponding, construction heights of 10 m to 15 m, at most 20 m, to achieve a shield sure.

Since the collection arrangement is constructed in the form of a module with a rectangularly limited surface extension and a large number of modules form a complete arrangement for a draft installation, a complete arrangement necessary to cover the desired surface in a draft installation. It can consist of a large number of smaller modules that are easy to handle. For example, the module has a width of 2 m to 5 m, preferably about 4 m, and a height of 2 m to 5 m, preferably about
2.5 m

To form a complete layout of greater surface extension, the modules are suspended juxtaposed and superimposed on a support structure to obtain the complete disposition

So that in the areas of the edge of the modules unwanted malfunctions do not occur, the modules they are grouped overlapping each other and / or in the form of a waterfall and / or in the form of scales to obtain the complete disposition.

When the module collector means adjacent to each other are built to transfer the pellets collected and rolling, pellets collected along of modules adjacent to each other can accumulate in a container collector, for example on the outer side of the complete layout located to the right or left in the direction of Shooting.

However they are provided in the modules damping means that limit and dampen the pendular movements of freely hanging modules, said modules are secured against too large amplitudes of the pendular movement, for example due to wind stimulation. Therefore, the desired collection action of shot pellets is preserves even in unfavorable wind conditions.

When a cover is provided on the side upper, the collection arrangement is shielded against a unwanted fouling and an unwanted solicitation with water, by example by the action of foliage, rain and / or snow. The cover it can be formed, for example, by a canvas fabric or in Shape of a fixed roof segment.

The possibly reinforced edge areas of the networks configured as modules and the connection points for the spacers can cause an unwanted rebound of pellets that impact on them. For this reason, in another embodiment of the invention it is provided that those areas in which a rebound of pellets could take place are shielded by guide plates, flat or in a timely manner in the form of cones. Alternatively, collecting means can also be arranged in front of these reinforcement zones, for example of cork, felt, foamed materials, straw or wood
fibrous

They are described in detail below. Examples of embodiment of the invention with reference to attached drawings.

They show in these:

Figure 1, in a perspective view, a individual module of a pellet collection arrangement in a first embodiment example,

Figure 2, in a cross section schematized, a collection arrangement according to a second embodiment example,

Figure 3, in a cross section schematized, a collection provision in a third example of realization,

Figure 4, in a cross section of the land, a complete provision of the collection system,

Figure 5, in a cross section of the terrain, a complete alternative provision,

Figure 6, in a cross section of the terrain, other complete provision,

Figure 7, in a cross section, a complete arrangement of collection modules in a firing vessel,

Figure 8, in a cross section of the land, a complete provision of the collection system in a shooting facility with tree inventory and water, and

Figure 9, in a perspective view, a complete disposal of collection modules in a construction shell-shaped bearing.

In figure 1 it is represented in a view in perspective a module 100 of a collection arrangement. The collection arrangement 100 has a surface extension rectangular. For example, the height of the module is 2.5 m and the width is 4 m.

Collection provision 100 presents a network front 1 of a PVC coated polyester fabric with a width 1.5 mm mesh. PVC coated polyester fabric it has, for example, a specific gravity of 650 g / m2.

On the upper edge of the front net 1 is planned a reinforcement of edge 11 with eyelets 12 practiced in the same. Edge reinforcement 11 has been obtained, for example, by medium of a full surface weld - limited to the strip of edge - of the tissue. In the eyelets 12 the net 1 is hooked in a bearing frame not shown.

At the rear end of the layout of pickup 100, considered in the firing direction X, is arranged a flat collection means 2, also as a network of PVC coated polyester. PVC coated polyester fabric of the collection means 2 has a mesh width of 1.0 mm. He specific weight of the collection network 2 amounts to 320 g / m2. Through this sizing, the collection arrangement 100 is specially adjusted to lead or sweet iron pellets with a diameter of 2.0 to 2.6 mm. In the upper edge of the network of pickup 12 is also provided a edge reinforcement 21 with eyelets 22 practiced therein to freely suspend said network.

The lower edges 13, 23 of the front net 1 or of the collection network 2 are linked to each other through a flat half collector 3. The flat half collector 3 is constituted by a canvas fabric, for example a polyester coated fabric PVC over the entire surface. The junction between the collecting means 3 and the front network 1 or between the collecting means 3 and the collection network 2 is preferably established by welding. The middle flat collector 3 determines a trough shape and closes the collection arrangement on its bottom side in a way Impenetrable to the pellets.

In the intermediate space between the front net 1 and the collection network 2 is interleaved a central network 4 approximately the same surface area as the network front 1 and collection network 2. Central network 4 presents also in its upper edge a reinforcement 41 with eyelets 42 practiced in it. The lower edge 43 of the central network 4 it ends up hanging freely between the front network 1 and the network of collection 2 above the collector means 3.

In figure 2 it is represented in section schematic cross-section a second embodiment of a collection arrangement 100. In this exemplary embodiment they are provided in the firing zone only a front net 1 and a collection network 2 distanced from it and located behind it, considered in the firing direction X. A half collector 3 way a widened collection tray whose leading edge 31 in the firing direction X is arranged below the front net 1 and ahead of it, considered in the firing direction. He rear edge 32 of the half collector 3 is attached, as in the exemplary embodiment according to figure 1, with the collection means 2 in the lower edge 23 of the latter.

When firing on the collection arrangement 100 in the firing direction X, the pellets impact the front network 1, which is substantially crossed by said pellets, "annihilating" a considerable part of the kinetic energy of the pellets. The spaced collection network 2 arranged at the rear collects the pellets with reduced kinetic energy that have passed through the front net 1, so that, due to the force of gravity, the pellets fall into the collection bowl of the collecting means 3. Any pellets that do not pass through the front net 1 also fall in this embodiment into the collection tray of the collecting means 3. In this embodiment, soil contamination with pellets already retained in the net is avoided.
lead.

In figure 3 it is represented in section schematic cross-section a third embodiment of a collection provision 100. The provision corresponds substantially to the embodiment according to figure 1, but in this case are arranged in the intermediate space between the network front 1 and collection network 2 a total of three central networks 4 freely hanging and distanced from each other. To ensure a sufficient distance at the lower end of the networks central 4 loosely hanging and in the front network 1 and the network of 2 free hanging collection, are planned between the edges lower 43 of the central network 4 and with respect to the lower edge 13 of the front network 1 and the bottom edge 23 of the network collection 3 some spacers 5 that assure a variable minimum distance and maximum distance.

An arrangement is shown in Figure 4 complete for a shot capture system in a section cross section of the terrain through a shooting facility with a embankment W. In the drawing plane to the left of embankment W The firing point is located. A shooter S pulls in the direction firing X, identified with the continuous arrow, towards a plate T launched from a launch booth A along a flight path Y represented with dashed line.

On the embankment W is mounted a bearing construction 6. Bearing construction 6 has arms carriers 61 projecting beyond the cusp of embankment W and in which collection provisions are attached modular 100, as described above with respect to Figures 1 to 3. Also, on the skirt of the embankment W directed Several waterfalls are planned towards the firing point rows of corresponding modules 100 of the arrangement of pick up

In the sweeping arrangement of the W embankment, it is that is, perpendicular to the drawing plane, they are lying between the supporting arms 61, for example, cables not shown in which modules 100 are laterally juxtaposed to Cover the entire shooting range.

Figure 5 shows a complete layout alternative, also in a cross section of the terrain. For this firing position represents two positions of shooter S with launch booths A and plate flight paths Y corresponding. Collection arrangement 100 is mounted here. in a continuous vertical plane in front of the embankment skirt W and, therefore, near and behind the target zone. By way of correspondingly, the collection arrangement 100 is mounted on the first third of the pellet flight trajectory and only needs a height of approximately 10 to 15 m. Due to the smaller distance to the handle S, in this arrangement the use of one or more central networks should be offered 4. Still when with this arrangement not subdivided into space it is imaginable a collection provision constituted by respective One-piece nets, it seems that a collection arrangement subdivided at least laterally into modules is advantageous in as for the manageability of network segments freely Hanging Of course, a subdivision is also imaginable. vertical in, for example, six overlapping modules, each of 2.5 m height

In figure 6 it is represented in the section transverse terrain for a firing position arrangement according to Figure 5 an alternative collection system with modules collection 100 arranged in the form of a waterfall on the skirt of the W. Embankment

In figure 7 it is represented in a section schematic transverse a firing post housed in a ship H. The pellet collection system adapted to it is constituted by a large number of collection modules 100 that are fixed behind the target zone to the back wall of the ship represented on the right in figure 7. Due to the provisions 100 modular pickups effectively pick up the pellets fired and these are enabled in the collecting medium for a reuse of raw material without additional cost.

In figure 8 it is represented in a section schematic transverse of the ground a shot installation in the that a large number of collection modules 100 form a complex pellet capture system. As a supporting construction for the suspension of the collection modules 100 serve some trees B arranged behind the target zone. Also, on sites critics in front of a body of water G, a road and the booth of launch A of the plate throwing installation are planned corresponding collection provisions. On the whole, through the necessary suspension of corresponding modules You can get protection from water bodies, roads, trees, vegetation, cracks, fountains, buildings or other threatened objects, for example the upper house and the lower house of the shooting facility at plate. In addition, by suspending modules 100 in trees B there is the advantage that trees can be preserved despite security facilities and necessary pellet collection and, consequently, an expensive transformation of the mountain.

In figure 9 a bearing construction configured as a shell M is shown in perspective view for a large number of collection modules 100 that are arranged behind the target area of the firing point. With a shell-like construction M, it is advantageous that the eventual pellets that are dispersed upwards in the firing beam can be collected already very close and behind the target area before they rise to a greater extent and , for example in the case of an embankment arrangement that is located about 10 m behind the target area, require considerably more construction
high.

In a complete arrangement of a system of pellet collection consisting of a large number of modules collection 100 is advantageous that the modules are standardized and configured so that they can be easily changed. If it turns out defective an individual segment, this could be changed Quickly by a spare module kept in reserve. Be also simplifies supply and supply logistics, since only standardized modules have to be kept in the warehouse. Also, the result of the limited size and therefore of the weight It is a high flexibility and mobility of the modules. Construction It can be done without expensive crane rental, etc.

List of reference symbols

one

          Front net

eleven

Singing reinforcement

12

Eyelet ring

13

        Lower edge

100

Module, provision of pick up

2

          Flat collection medium, collection network

twenty-one

        Singing reinforcement

22

        Eyelet ring

2. 3

        Lower edge

3

          Half flat collector, canvas

31

        Leading edge

32

        Rear edge

4

          Core network

41

        Singing reinforcement

42

        Eyelet ring

43

        Lower edge

5

          Spacer

6

          Bearing construction

61

        Bearing arm

TO

  Launch booth

B

  Tree

G

  Mass of water

H

  ship

M

  Shell

S

  Shooter

T

  Clay dish

W

  Embankment

X

  Shooting direction

Y

  Flight path of the launched plate

Claims (13)

1. Arrangement for pellet collection for use in shooting facilities with a front net (1) arranged vertically and substantially perpendicular to the firing direction (X), characterized in that the front net (1) is arranged hanging freely in the area of the firing path and because, spaced behind it in the firing direction (X) and substantially parallel to it, a flat collecting means (2) is provided, allowing a mesh width of the front net (1 ) a step braking the pellets. 2. Arrangement for pellet collection according to claim 1, characterized in that the front net (1) has a mesh width smaller / equal to the diameter of the shot shot on it. 3. Arrangement for pellet collection according to claim 1 or 2, characterized in that the front net 1 and the flat collection means (2) are connected to each other in their lower edges (13, 23) through a collecting means (3 ) made of a flat material that does not pass pellets. 4. Arrangement for pellet picking according to claim 1, 2 or 3, characterized in that between the front net (1) and the flat collection means (2), one or more collection means are provided in a position substantially parallel to these. central (4) flat configuration. 5. Pickup arrangement according to claim 4, characterized in that the central collection means (4) is configured as a sheet, as a curtain of threads or lamellae or preferably as a net. 6. Arrangement for pellet collection according to one of the preceding claims, characterized in that the flat collection means (2) is a freely hanging sheet or a freely hanging net with a mesh width less than the diameter of the pellets or is a wall whose surface exposed to the shot is preferably constructed as a fibrous wood, plastic or foamed plate, a straw mat or a branch mat. 7. Arrangement for collecting pellets according to one of the preceding claims, characterized in that in front of the front net, considered in the firing direction, a bounce capture means is provided, the bounce capture means having at least one curtain of threads with or without cross joints between the threads. 8. Arrangement for pellet collection according to one of the preceding claims, characterized in that the front network (1), the collection means (4) configured as a central network and / or the flat collection means (2) configured as a network They consist of a plastic net, preferably a PVC coated polyester fabric. 9. Arrangement for pellet collection according to one of claims 5 to 8, characterized in that the front network (1) has a mesh width greater than that of the central network (4) and / or that of the collection means (2) configured as a network, the mesh width of the front network (1) being approximately 0.5 mm smaller than the diameter of the smallest pellets used and the mesh width of the central network (4) and / or the collection means (2) configured as a network approximately 1.0 mm smaller than said diameter. 10. Arrangement for pellet collection according to one of the preceding claims, characterized in that spacers (5) are provided between the front network (1) and the central network (4) and / or the freely hanging collection means (2). 11. Arrangement for collecting pellets according to one of the preceding claims 3 to 10, characterized in that the collecting means (3) is in the form of a trough and a base line formed therein is arranged in a position substantially parallel to the surface extension and with slight inclination with respect to the horizontal. 12. Arrangement for collecting pellets according to one of the preceding claims, characterized in that it is constructed in the form of a module (100) with a rectangularly limited surface extension, and a large number of modules (100) form a complete arrangement for an installation of threw. 13. Arrangement for collecting pellets according to claim 12, characterized in that the modules (100) are suspended from a supporting structure (6) in juxtaposed and superimposed form to obtain the complete arrangement, the modules (100) being grouped so that they overlap each other and / or have a cascade and / or scale shape to obtain the complete arrangement.