DE2012868A1 - Target for automatic display of hits - Google Patents

Description

Armin Schärz and Oskar Schärz, Interlaken

Target for the automatic display of hits.

The invention relates to a shooting target. to automatically display the hits.

There are already targets for the visual Display of the shooting point of a projectile has been proposed. Such known targets have at least two one behind the other, perpendicular to the projectile trajectory, electrically isolated and conductive foils on. The projectile penetrates these foils and thereby these two foils are briefly replaced by the metallic ~ Floor electrically connected to each other. Ss. is created in- ■ - / a circuit connected to these two foils, ■; .w. · which has a voltage source, an electrical surge, which is evaluated in an electronic device and shows the point of inspection. Hlezu to be in ., advantageously different sectors with conductive Foils are jgeblldet so that the weft position is perfect- · '· *' = will show.

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Such targets are very suitable for projectiles that are fired at these targets with relatively large-caliber rifles. Projectiles from relatively small-caliber rifles are not able to penetrate these foils in every case in such a way that contact is always made. Furthermore, in the case of small-caliber disks, the vertices are so close to one another that, on the one hand, manufacture is very difficult and, on the other hand, wear is very high. In addition, the size of the foils divided into sectors is limited below. The known design is not suitable for small targets, such as are common in small-caliber shooting ranges, for example.

The object of the invention is to create a locking disk that can be used as a target for small-caliber Bullets with low penetration are suitable.

The target according to the invention is characterized in that several target bodies of different sizes with impact surfaces for projectiles are arranged one behind the other at a distance and independently of one another to a limited extent movable, and that between these target bodies at least one element each responsive to movements of the assigned target body for influencing the current in one circuit assigned to each target body is provided.

The subject matter of the invention is explained in more detail below with reference to the drawings, for example. Show it:

1 shows a target for the automatic display of hits and the shot position in section,

FIG. 2 shows the target according to FIG. 1 in a top view and in one drawn on a smaller scale,

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3 is a partial section through a second embodiment of the target, FIG. 4 is a partial section through a third embodiment of the target, FIG. 5 is a schematic sectional view of a fourth embodiment of the target,
6 is a plan view of the target

according to FIGS. 5 and

Figure 7 is a block diagram of electronic equipment for displaying hits and the shot position.

In the shooting target shown in FIGS. 1 and 2, a set of eight similar circular target bodies 1 and a cup-shaped target body 2 and a cylindrical target body 3, which has the smallest impact surface 4, are movably arranged on a central support b relative to one another and with respect to this central support . On the central support 5, spaced apart support rings 7 are clamped between the widened head 8 of the central support and an intermediate plate 9 by means of spacer sleeves 6. All circular target bodies 1 have a central bore 10 whose diameter is larger than the outer diameter of the spacer sleeves 6, but smaller than the outer diameter of the support rings 7. The edge of the circular target body 1 surrounding the bores 10 protrudes into the grooves delimited by the support rings 7 The circular target disks are each held concentrically to the central support 5 by means of an elastic, angular retaining ring 11, viewed in cross section.

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A piezoelectric crystal is located between each circular target body 1 and a support ring 7 12, which has an annular shape. Thanks to an elastic pressure ring surrounding the crystal 12 13 the associated target body 1 is held in its rest position.

The cup-shaped target body 2 has a radially inwardly protruding rocker 14 which is inserted into the through a on the end face of the central support 5, disc-shaped terminating piece 15 and on the head 8 of the Center support adjacent support ring 7 formed groove protrudes and rests on one side on the associated crystal 12. This ring-shaped crystal 12 is also from surrounded by a pressure ring 13, the outer diameter of which is at most the same size as that. Outer diameter of the pot-shaped target body 2 "In the bottom of the pot-shaped Target body 2, an opening 16 is provided for the cylindrical target body 3. The remaining in the ground The outer surface serves as the second smallest impact surface 17. The cylindrical target body 3 has a Collar 18, which limits within the pot-shaped target body 2 with respect to the longitudinal axis of the central support 5 is arranged movable. Between the inner end face of the cylindrical target body 3 and. the end piece 15 another, disk-shaped crystal 18 is arranged, which is also surrounded by a pressure ring 19 is that the cylindrical target body 3 together holds with a snap ring 20 in the rest position.

The intermediate plate 9 is opposed to a base plate 23 by means of screws 21 and rubber grommets 22 arranged movable to a limited extent. Between these two plates 9 and 23 there are eight at regular intervals arranged on a circle, further disk-shaped

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Crystals 24 are provided. These are also surrounded by elastic support rings 25, which the intermediate plate 9 hold at a defined distance from the grand plate 23. On the back of the base plate 23 is by means of clamps a bolt 27 is attached, the lower part of which in a stationary Tube 28 can be inserted. With the aid of a locking screw 29, the bolt 27 can be fixed in the tube 28 so that the base plate 23 is held immovable.

The central support 5 is hollow and the end piece 15 as well as the intermediate plate 9 and the base plate 23 are provided with a through opening in the middle, so that the connecting wires 30 of the crystals are bundled to form a cable 31 on the rear side of the base plate 23 can emerge.

Although the target described above has a fir tree-shaped structure when viewed from the side has, the shooter sees a normal target image according to FIG. 2. This target represents a Ten disc for Kleir.kaliber-3chiessst.ande dar. The Target bodies 1, 2, 3 and 9 are made of high quality steel and are sufficiently stable to withstand the impact of the Resist bullets. It should be expressly noted here that the projectiles do not penetrate the target body, but, as tests have shown, practically evaporate on impact or ricochet off to the side.

Since the target bodies are mounted so that they can move to a limited extent, the impact of the projectiles on these target bodies briefly presses them against the return force of the elastic support rings 13 against the base plate 23, whereby the corresponding crystal 12 or 18 is briefly pressed together. Dab cd occurs at the connecting wires 30 of the corresponding: Crystals :; οίϊ, Spaijaunr: · impulse on. D: i.3; op on-nr ^ m ^ .H- ι 1:> ο ier

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a,

if necessary, several of these are transmitted via the cable 31 supplied to electronic equipment described below.

The crystals 12 and 18, respectively, assigned to the target bodies 1, 2 and 3, generate saving pulses serve to display the hits, for example causes a voltage pulse generated by the crystal 12 assigned to the cup-shaped target body 2, the display "9", because a projectile hit the impact surface 17. .

For the shooter, however, it is not only the hit that is essential, it is also on the display interested in the shot position so that he knows in which direction he has to correct when aiming in order to get the shot to be placed in the center of the target. The positions between the intermediate plate 9 are used to indicate the shot position and crystals 24 arranged on the stationary base plate 23.

As already mentioned, there is the whole set of target bodies, the central support 5 and the intermediate plate 9 arranged to be movable to a limited extent relative to the base plate 23. Therefore, when a projectile hits, for example on the point 32, once the corresponding target body 1, in the assumed case the second largest, pressed against the base plate 23, which causes the associated crystal 12 to emit a voltage pulse, which causes a "2" to be displayed. This impact also has the consequence that the central support 5 is pivoted a little upwards about an undefined axis in the clockwise direction, the intermediate plate 9 participates in this pivoting movement because it is rigidly connected to the central support 5. This will make the three uppermost, based on Figs. 1 and 2, between the

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Intermediate plate 9 and the base plate 23 arranged Crystals 24 pressed together, the middle crystal 24 being exposed to the greatest pressure. Therefore this crystal will generate a voltage pulse with the generate the greatest amplitude. This largest voltage pulse is evaluated in the electronic equipment and the corresponding shot position is displayed.

Do not hit any of the targets with a projectile 1, 2 or 3 but only on the intermediate plate 9, only one shot position but no hit is displayed.

In Fig. 3, a second embodiment of a target is shown. The impact surfaces 33 of the target bodies 1 are arranged in one plane. These impact surfaces are the radially extending end faces of target rings 34 which are rigidly connected to the circular target bodies 1 via support members 35. In the The support members 35 shown in FIG. 3 are hollow cylinders which are each welded to one of the circular target bodies 1 are. The remaining parts of this target are constructed in the same way as shown in FIG is.

4 shows a third embodiment of a target. With the exception of that target body 36 with the smallest impact area 37 are all others Target body 38 is cup-shaped and nested in one another. Between the smaller target body partially encompassed by the next larger target body there is one elastic layer 39 is provided. Therefore, the individual target bodies are limited relative to the others movable. "wipe the inner face of the cylindrical target body 36 or the outside of the floors the remaining target body 38 and the inner sides of these floors mentioned is each a disc-shaped piezo

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electrical crystal 40, preferably in a recess 41 arranged.

The inner and outer surfaces of the coats of the cup-shaped target body 38 are conical and the The opening of this pot-shaped target body is with a provided radially outwardly protruding edge 42, which, however, does not exceed the largest diameter of the bottom • protrudes. The radially extending end faces of these edges 42 form the impact surfaces 43, thanks to the conical Formation of the dumbbell of the cup-shaped target body 38, this can after the introduction of the elastic layers 39 no longer fall out of the target body that partially encompasses them. The cylindrical target body 36 bestitzx; a notch 44 through which, when attached to the layer 39 is filled, this cylindrical target body 36 is prevented from being removed from the next target body 38 can fall out.

In the bottoms of the pot-shaped target bodies 38 and in the layers 39 there are recesses 45 which are aligned with respect to one another for the passage of the connecting seams 46 provided for the crystals 40. The largest cup-shaped target body 38 is provided with one in FIG. 4 connected intermediate plate, not shown. This intermediate plate can be designed the same as the Intermediate plate 9, which is drawn in FIG. This intermediate plate is the same as the base plate connected, with a number also arranged on a circle for the display of the shot position Crystals are provided between these two plates.

A fourth embodiment of a target is shown schematically in FIGS. With the exception of the target body 47 with the smallest impact area all other target bodies 48 have one

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central, round and different size opening on. Instead of a central carrier, eight carriers 50 arranged in a circle are provided, for example. Each of these carriers is constructed similarly to the central carrier 5 shown in FIG. 1, but with only one of these carriers is one which interacts with one of the target bodies and is not visible in FIGS. 5 and 6 Crystal is assigned. Only between the target body 47, which in this embodiment also serves as an intermediate plate, and the base plate 51 is for display a non-visible crystal is assigned to the weft position of each carrier 50.

Fig. 7 shows the block shears of the above mentioned electronic equipment, which evaluates the voltage pulses generated by the crystals and accordingly indicates the hit or the shot position. In the block diagram, they are the individual Piezoelectric crystals associated with target bodies with 51a to 51n and those between the base plate and The piezoelectric crystals arranged on the intermediate plate are denoted by 52a to 52n.

A monostable flip-flop 53a to 53n or 54a to 54n is assigned to each of these crystals. the Voltage peaks generated in the crystals are fed to the input of the corresponding flip-flops. These respond to positive or negative voltage peaks that exceed a certain value and generate a pulse at its output.

The trigger stage 53a generates a positive pulse when a positive voltage peak occurs of short duration, for example 10 ms. The flip-flop 53b, not shown, generates a positive pulse of 20 ms duration. Each next flip-flop 53c, 53d etc. generates a positive pulse that is 10 ms longer

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lasts than the pulses generated by the preceding trigger stages. From this it can be seen that, ie after a hit a positive impulse of different length is produced.

Preferably, the flip-flop 53a, which generates the shortest positive pulse with that crystal connected, which is assigned to the largest target body, i.e. the one with the lowest number of traps. The 53m tilting step, which produces the longest positive impulse is connected to the crystal that corresponds to the smallest target body, that is, that which corresponds to the highest number of hits is assigned. In this way "if" becomes a projectile just touches a target body and then hits the next largest target body, two positive ones Pulses generated, but the two pulses are practical start at the same time and the longer impulse that the corresponds to the higher number of hits, the shorter impulse outlasts, which causes the higher number of hits is shown. This is correct, because the higher number of hits also applies to a normal target, when a circle is drawn. -

The outputs of the flip-flops 53a to 53n are all connected in parallel and with the input of a pulse generator 55 connected. Depending on the duration of the positive impulses fed to it, this generates a corresponding number of short positive pulses of constant duration, the number of these short pulses is proportional to the number of hits.

These groups of short, positive pulses are transmitted to a transmission line via an interconnection 56 57 given, which is relocated between the target stand and the shooting range. in the shooting range these groups of short, positive impulses arrive

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via a branch circuit 58 to a first pulse counter 59, which counts the incoming positive pulses. According to the count, a Line 60, the hit number on a scoreboard 61 made visible.

The flonostable multivibrator 54a generates a relatively short, negative pulse of 10, for example ms duration if the crystal connected to it, which is the crystal case 24 located at the top in FIG

fc can be a voltage spike that has a certain Value is generated. Each subsequent flip-flop 54b, 54c, etc. generates one that is 10 ms longer negative impulse, so that the length of the negative impulses generated varies according to the shot position. All outputs of the flip-flops 54a to 54n are connected in parallel and with the input of a second pulse generator 62 connected. Depending on the length of the negative pulses fed to it, this generates a number of short negative ones Pulses of constant duration, such that the number of these short negative pulses convey the information included about the shot position.

From the second pulse generator 62 get the

* Groups of negative pulses via a delay circuit 63 for interconnection 56. In this delay circuit 63 the negative pulse groups are held back at least until the first pulse generator 55 generated positive pulse groups in the interconnection 56 have been given. First then the negative pulse groups reach the transmission line 57 via the interconnection 56 and via the metering circuit 58 to a second pulse counter 64. This controls via a line 6 5 the display of the shot position on the scoreboard 61.

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To o% esem 'purpose is on this symbol! Seh a _{disk-represented?} which opens up in sectors * Depending on whether a bullet struck in the corresponding sector of the target as shown in Fig. 1 *

Above it was assumed, that a floor · at the point 32 on the largest target coupler 1 of the Fig; 1 has ricocheted off The display panel S1 in Fig. shows the dates of this shot änj. Namely meeting number 2 lind the sector j which is exactly vertical above the Center point is} lights up ..

¥ enn zmbx dashed in the figure

presented öebertragiipgsleittffigen 65 wiä 66 available: available, can saxt the ferzögerungsschsltung 63j which Zusariimeiischaltiing 56 tirid the ASF ^ eigschaltting 58 "TFER ** are ziehtet" The 65 and 62 produced by ä & n pulse generators pulse groups can then simultaneously and without that they see each other will affect UEs to pulse counters 59 or "64 transmitted * In this case, the monostable multivibrators 53 and the monostable multivibrators 54 may be identical.

■ Since the Lock stand and the disk stand are relatively close to each other, can instead of a two-wire Transmission line can also be a single-core cable * be used, with the earth as a common buck ladder serves «

The viewing disks shown in FIGS. 1 to 6 all have circular impact surfaces, but it should be expressly mentioned that the target body. can have practically any shape. Further the division of the impact surfaces can be as fine as desired

Claims (10)

2Ü128B8 ΡΑΤΕΛ Ϊ AII3KHJECHK 1. Sehiessseibe for automaticchen display of hits, characterized in that several target bodies of different sizes (1, 2, 3) with impact surfaces (4, 17, 33) for projectiles one behind the other at a distance and independently of one another limited movable, and that between these target bodies at least one each on movements of the assigned target body responsive element (12) for influencing the current proceeded in a circuit assigned to each target body. ρ hen is. 2. Sehiessscheibe according to claim 1 »characterized in that that the target body (3) with the smallest impact surface (4) has a cylindrical shape. 3. sight glass according to claim 2, characterized in that that the target body (2) with the second smallest impact surface (17) is pot-shaped, that the bottom of the same has an opening (l6) to partially pass through the target body with the smallest Has impact surface, the outer surface this Ground serves as an impact surface that the other target bodies are circular disks (l) with a central hole, F that a smock carrier (5) extends through these bores, on the support rings held at a distance by spacer sleeves (6) (7) are arranged immovably with respect to the central support that each one of the named elements is attached to a target body and rests against a support ring, and that between each target body and the associated support ring a resilient member (13) is provided for holding the target body in the rest position (Pig. I). 4. Grinding wheel according to claim 3 »characterized in that that the impact surfaces (33) of the circular target body (l) are arranged in one plane and which run radially Outer surfaces of concentrically arranged over support 109835/0171 members (35) linked to the circular target body Target rings (34) are (Fig. 3). 5. Target according to claim 3, characterized in that said Kiemente and resilient members are circular are trained. , 6. Target according to claim 2, characterized in that that the remaining target bodies (38) are cup-shaped, that these with a radially outwardly projecting edge (42) are, with the * end faces of this edge as impact surfaces serve that these pot-shaped target bodies are partially nested and separated from each other by an elastic layer (39) are separated, and that said elements (40) are between the bottoms of this cup-shaped target body arranged are (Fig. 4). 7. Schiessschexbe according to claim 1, characterized in that that the target body with the smallest impact surface is a plate (47), that the other target bodies are plates (43) with central, different sized, round openings (49) are that all these plates by means of at least three support columns (50), are kept at a distance, and that several of the mentioned elements are provided between the individual plates are. (Figures 5 and 6). 8. ■ · target according to claim 1, characterized in that that the whole set of target bodies opposite a baseplate (23) is arranged to be movable to a limited extent and that to determine the weft position between the said sentence and the Baseplate a number of movements in relation to this set further elements (24) corresponding to the base plate, preferably on a circle, are arranged. 9. Shooting target according to one of the preceding claims, characterized in that the said elements are working or resting contacts which close or open when the associated target body moves relative to one another. 8AÖ. 109835 / 017-1 - 2Ü12868 10. Target according to one of claims 1-9, characterized in that said elements are piezoelectric Crystals are. 1 () 9 8 3 ^r »ΠΠ 7 1 ^eAD o ^MQ1MAL