EP3631346A1

EP3631346A1 - A shooting range facility for recreational or sporting purposes with a tilting target support, method for configuring such a facility

Info

Publication number: EP3631346A1
Application number: EP18732838.0A
Authority: EP
Inventors: Jean-Marc Alexandre; Robert BODEN; Christian Bolzmacher
Original assignee: Commissariat a lEnergie Atomique CEA; Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Current assignee: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date: 2017-06-02
Filing date: 2018-05-31
Publication date: 2020-04-08
Anticipated expiration: 2038-05-31
Also published as: WO2018220329A1; JP6900513B2; RU2728646C1; US11125538B2; US20210072001A1; CN110914633B; JP2020521938A; EP3631346B1; FR3067103A1; CN110914633A; FR3067103B1

Abstract

Said shooting range facility for recreational or sporting purposes comprises a target support plate (10), which can be tilted according to several different possible inclinations with respect to a reference plane (P), and at least one target representation (12, 12A, 12B) to be displayed in a plane (14) of the target support plate (10). Each target representation (12, 12A, 12B) has several different displayable deformations (12A₀, 12A₁, 12A₂, 12B₀, 12B₁, 12B₂), respectively associated with the several different possible inclinations, said different deformations being designed so that the orthogonal projections thereof in the reference plane (P) are all identical when they are respectively displayed in the plane (14) of the target support plate (10) according to the inclinations with which they are respectively associated.

Description

SPIRATORY OR SPORTING SHOOTING SYSTEM WITH A RECLINING TARGET HOLDER, METHOD FOR CONFIGURING SUCH A INSTALLATION

The present invention relates to a recreational shooting facility or sports tilting target support. It also relates to a method of configuring such an installation.

It relates more specifically to a recreational or sports shooting facility comprising a target support plate, tilting at several different inclinations possible with respect to a reference plane, and at least one target representation intended to be displayed in a plane of the target support plate.

Many types of recreational or sports shooting facilities are known. Some have an impact resistant target support plate and sets of cardboard targets to be fixed against a front face of the support plate. Each cardboard target representation must then be replaced after each use and there is no simple interactivity with the shooter who must regularly move towards the target or move towards him. Others present an interactive face and electronic means of location of impacts against the interactive face. Interactivity with the shooter is then greatly improved since the location data obtained electronically can be transmitted in real time to the shooter by telecommunication (mobile phone or other portable device for example). For example, it is known to use: optical techniques, optical scanner or laser beams; interrupted infrared technologies for modulated beams; progressive mechanical wave detection techniques, in particular based on the measurement of a transit time difference of a Lamb wave packet generated by an impact to a plurality of piezoelectric detectors and on the deterministic calculation, using a pre-established mathematical formula, the position of a source emitting the wave packet. The latter progressive mechanical wave detection techniques, as for example taught in US Pat. No. 6,933,930 B2, are moreover generally preferred in terms of recreational or sporting shooting because they allow the use of interactive faces that are both resistant. and sensitive to impacts. In addition, they do not require consumables.

Whatever the type of installation chosen, the target representation is preferably displayed by default in a reference plane perpendicular to the axis of aimed and / or desired firing. Thus, it appears as such and without deformation in the eyes of a shooter. But in practice, especially for installations with interactive faces for location of impacts, it is preferable to tilt the target support plate, as taught in US Pat. No. 6,367,800 B1: not only to possibly redirect the projectiles to a recovery tank , but also to protect the impact surface against the impacts of too much power or energy. Indeed, the higher the inclination is relative to the reference plane defined above, according to one or more freely chosen axes, the impact energy is reduced by deflecting the trajectory of the projectile without stopping it. which has the effect of increasing the strength of the plate at high powers / energies and therefore its lifetime.

But such an inclination deforms the target representation when viewed in the desired line of sight and / or firing. Or we must separate the impact surface (tilting) of the target representation (remaining displayed in the reference plane), and this poses obvious problems to locate the impacts due to parallax errors.

It may thus be desired to design a sports shooting facility or play that allows to overcome at least some of the aforementioned problems and constraints.

It is therefore proposed a recreational or sports shooting facility comprising:

a tilting target support plate according to several different inclinations possible with respect to a reference plane,

at least one target representation intended to be displayed in a plane of the target support plate,

wherein each target representation has a plurality of different displayable deformations, respectively associated with said plural different possible inclinations, said different deformations being so designed that their orthogonal projections in the reference plane are all identical when respectively displayed in the plane of the target support plate according to the inclinations with which they are respectively associated.

Thus, whatever the inclination chosen among the possible inclinations, each desired target representation can be seen without apparent deformation in an axis of aiming and / or firing, perpendicular to the desired reference plane. This makes it possible to protect the impact surface, in particular against powerful shots with powder or compressed air propulsion systems, without harming the presentation of the target which, in certain disciplines, also meets strict requirements of dimensions and proportions.

Optionally, each deformation of each target representation is reproduced on a prefabricated specific support to be releasably disposed against the target support plate.

Optionally also, a recreational or sports shooting facility according to the invention may further comprise:

a calculator programmed to calculate each deformation of each target representation using at least one angular value corresponding to the inclination associated with this deformation, and

an electronic display device for each deformation calculated by the computer.

Optionally also, a recreational or sports shooting facility according to the invention may further comprise an inclination detector of the target support plate for supplying said at least one angular value, the computer being then programmed to calculate deforming each target representation corresponding to the detected tilt by angular correction using said at least one angular value provided by the tilt detector.

Also optionally, the target support plate is inclined angularly around a first main axis of the reference plane, in particular intended to be substantially horizontal when the installation is placed on the ground, and / or around a second axis of the reference plane, perpendicular to the first main axis.

Optionally also:

any angle inclination α about the first main axis generates a corresponding proportional geometric deformation in (cos a) ^"1 in the direction orthogonal to the first principal axis of each target representation, and / or

any angle inclination β around the second axis generates a corresponding proportional geometric deformation in (cos β) ^-1 in the direction orthogonal to the second axis of each target representation.

- a shooting power recorder, a device for adjusting the inclination of the target support plate as a function of the recorded firepower, and

a target representation deformation adapter displayed according to the set inclination.

Optionally also, the target support plate is transparent or translucent, has a frosted front face and has a rear face against which is intended to be projected said at least one target representation to form the display plane of the plate target support.

a shooting impact localization device,

several target representations reproducing the same motif but intended to be centered respectively on several target centers located at different points of the display plane of the target support plate,

means for recording locations and successive powers of shot impacts provided by the location device, and

- Means for selecting a target center location for a selected display according to the locations and successive powers of recorded shot impacts.

There is also provided a method of configuring a recreational or sports shooting facility comprising a tilting target support plate in at least one non-zero inclination with respect to a reference plane and at least one reference target representation for be displayed in a plane of the plate when it is parallel to the reference plane, the configuration method being such that:

at least one deformation of said at least one reference target representation is calculated using at least one angular value corresponding to said at least one non-zero inclination such that the orthogonal projection of this deformation in the plane reference is identical to the reference target representation when the deformation is inclined according to said at least one angular value, and

said at least one calculated deformation is displayed in the plane of the plate when the latter is inclined according to said at least one angular value. The invention will be better understood with the aid of the description which follows, given solely by way of example and with reference to the appended drawings in which:

FIGS. 1 and 2 show schematically the general structure of a recreational or sports shooting installation according to two embodiments of the invention,

FIGS. 3 and 4 show diagrammatically and partially variant embodiments of the installation of FIG.

FIG. 5 illustrates possibilities of inclination of the installation of FIG. 1 or 2,

FIGS. 6 and 7 illustrate the possibility of displaying distorted representations of targets by the installation of FIG. 1 or 2, and

FIG. 8 illustrates the successive steps of a method for configuring the installation of FIG. 2.

The recreational or sports shooting facility schematically illustrated in FIG. 1 relates as well to a sporting or recreational shooting activity with a weapon, rifle or pistol, to compressed air or to powder, as to an archery activity, crossbow, blowpipe, dart or other.

It comprises a target support plate 10 shown in side view, tilting at several different inclinations possible (for example a = 0, a = ai, a = a ₂ ) relative to a reference plane P. This reference plane P is shown vertically and perpendicular to an axis A of aiming and / or firing itself represented horizontally in the plane of the figure. As a simple example to represent but not limiting, three possible different inclinations are illustrated in Figure 1, all three around a horizontal axis D of the reference plane P and identified by an angular value a. The first inclination is zero (a = 0), the second takes a value CH (for example 15 degrees) for a and the third a value a ₂ (for example 30 degrees).

The recreational or sports shooting installation also comprises at least one target representation 12 intended to be displayed in a plane 14 of the target support plate 10, for example a rear face of the plate 10. Its attachment will not be fixed. detailed because quite known in itself. This arrangement advantageously makes it possible to protect the target representation 12, the plate 10 then having to be transparent. In a variant, the display plane 14 is the front face of the plate 10 which can then be opaque. Under the three possible inclinations illustrated in FIG. 1 are represented several representations of targets each having several different deformations that can be displayed and are respectively associated with the different possible inclinations. According to the non-imitative example of this figure, two representations of different targets are provided.

A first 12A target performance is a target for sport shooting at 10 meters. It has three deformations, each reproduced for example on a specific prefabricated support paper or cardboard and intended to be disposed by removable attachment against the front or rear 14 of the target support plate 10. The first deformation 12A ₀ , zero and corresponding to the zero inclination a = 0, represents concentric circles numbered on cardboard support of minimum dimensions 170 mm x 170 mm, with a black visual disc of 59.5 mm (+/- 0 , 2 mm) in diameter from Zone 7 to Zone 10 in accordance with Olympic standards. It is intended to be displayed on the front or rear face 14 of the target support plate 10 when the latter is parallel to the reference plane P. The second deformation 12A _1; corresponding to the non-zero inclination a = a _1; represents concentric ellipses deformed so that their orthogonal projection in the reference plane P is identical to the concentric circles of the first zero deformation 12A ₀ when this second deformation is displayed on the front or rear face 14 of the support plate 10 of target according to the inclination a = ai with which it is associated. Finally, the third deformation 12A ₂ , corresponding to the non-zero inclination a = a ₂ , represents concentric ellipses deformed such that their orthogonal projection in the reference plane P is identical to the concentric circles of the first zero deformation 12A ₀ when this third deformation is displayed on the front or rear face 14 of the target support plate 10 according to the inclination α = a ₂ with which it is associated.

A second 12B target performance is a target for rifle sport shooting at 10 meters. It has three deformations, each reproduced on a specific prefabricated support paper or cardboard and intended to be disposed by removable attachment against the front or rear face 14 of the target support plate 10. The first deformation 12B ₀ , zero and corresponding to the zero inclination a = 0, represents concentric circles numbered on cardboard support of minimum dimensions 80 mm × 80 mm, with a black visual disc of 30.5 mm (+/- 0 , 1 mm) in diameter from Zone 4 to Zone 9 in accordance with Olympic standards. It is intended to be displayed on the front or rear face 14 of the support plate 10 of target when it is parallel to the reference plane P. The second deformation 12B _1; corresponding to the non-zero inclination a = c, represents concentric ellipses deformed such that their orthogonal projection in the reference plane P is identical to the concentric circles of the first zero deformation 12B ₀ when this second deformation is displayed on the face front or rear 14 of the target support plate 10 according to the inclination a = CH with which it is associated. Finally, the third deformation 12B ₂ , corresponding to the non-zero inclination a = a ₂ , represents concentric ellipses deformed such that their orthogonal projection in the reference plane P is identical to the concentric circles of the first zero deformation 12B ₀ when this third deformation is displayed on the front or rear face 14 of the target support plate 10 according to the inclination α = a ₂ with which it is associated.

In practice, the deformations are established in the following way: any inclination angle α around the axis D generates a corresponding proportional geometric deformation in (cos a) ^"1 in the direction orthogonal to D. According to this geometric deformation, if we denote by F (x, y) the first zero deformation of any target representation (x being the abscissa along the axis D and y the ordinate in the orthogonal direction), then the deformation G ( x, y) resulting from an inclination α about the axis D is given by the following relation:

F (x, y) = G (x, y) (cos a) ^"1 ).

As a result, according to a first aspect of the present invention, the possible deformations of the same target representation are such that their orthogonal projections in the reference plane P are all identical when they are respectively displayed in the plane of the target. the target support plate according to the inclinations with which they are respectively associated.

Of course, there are multiple representations of targets, whether or not they conform to Olympic standards. For example :

- for pistol sport shooting at 25 and 50 meters: the first deformation, zero and corresponding to the zero inclination a = 0, represents concentric circles numbered on cardboard support of minimum dimensions

550 mm x 550 mm, with a black visual disc of 200 mm (+/- 1 mm) in diameter from zone 7 to zone 10 in accordance with Olympic standards,

- for pistol shooting at 25 meters speed: the first deformation, zero and corresponding to the zero inclination a = 0, represents concentric circles numbered on cardboard support of minimum dimensions 550 mm x 550 mm, with a black visual disc of 500 mm (+/- 2 mm) in diameter from zone 5 to zone 10 in accordance with Olympic standards,

- for rifle sport shooting at 50 meters: the first deformation, zero and corresponding to the zero inclination a = 0, represents concentric circles numbered on cardboard support of minimum dimensions

250 mm x 250 mm, with a black visual disc of 1 12.40 mm (+/- 0.5 mm) in diameter in accordance with Olympic standards,

- for sport shooting with a rifle at 300 meters: the first deformation, zero and corresponding to the zero inclination a = 0, represents concentric circles numbered on cardboard support of minimum dimensions

1020 mm x 1020 mm, with a black visual disc 600 mm (+/- 3 mm) in diameter from zone 5 to zone 10 in accordance with Olympic standards. Nothing prevents us from making purely playful and totally arbitrary representations of targets, not notably reproducing concentric circles of sight with zero distortion.

Moreover, each paper, cardboard or other support of each deformation of each target representation may comprise an identifier Id such as a barcode which makes it possible to efficiently find out to which target representation and to which inclination it corresponds. The installation of FIG. 1 is thus provided with a set of representations of targets 12 with several possible deformations all identified by barcode and displayable on the front or rear face 14 of the target support plate according to the discipline of fire and desired inclination.

The recreational or sports shooting installation illustrated diagrammatically in FIG. 2 is in accordance with an embodiment without consumables in which an electronic device is provided for displaying a desired target representation and previously calculating its deformation. In this case, the target may be a still image or an animated series of images. It is also an embodiment in which the location of impact is made using an interactive face of receiving impacts and electronic means of location, in particular by differential transit time calculations. It concerns the same activities as the installation of FIG.

This installation also comprises a tilting target support plate 20 according to several different inclinations possible with respect to the previously defined P reference plane. This plate 20 has an interactive surface capable of propagating progressive mechanical waves from an impact. Moreover, several transducers 22 are distributed at the rear against the plate 20: at least three, or even generally four, transducers are thus arranged to allow location by triangulation from the signals they transmit. They are designed to capture the progressive mechanical waves propagating in the interactive surface and turn them into electrical signals.

The installation of FIG. 2 further comprises an electronic central unit

24, connected to the transducers 22 to receive their electrical signals, programmed to locate any impact in the interactive surface of the plate 20 by analysis of propagation time differences of the progressive mechanical waves from the impact to the transducers 22 on the basis of the impact detection instants identified in the received electrical signals. The electronic central unit 24 comprises for this purpose a first impact location calculator 26 which, optionally, can furthermore provide an estimate of a power of each localized impact. Each detected impact can then be stored in memory 28 with its location and power to form a history of impacts.

The electronic central unit 24 further comprises a memory 30 for storing at least one target representation intended to be displayed in a desired plane of the target support plate. Each target representation is thus stored in digital format and a second computer 32 of the electronic central unit 24 is programmed to calculate each possible deformation of each target representation using at least one angular value corresponding to an inclination of plate 20 associated with this deformation.

An electronic display device 34, in the desired plane of the plate 20, of each deformation calculated by the second computer 32 is further provided and connected to the electronic central unit 24. In the illustration of FIG. electronic display device 34, for example a computer screen, interactive tablet or any flat screen connected to the second computer 32, is arranged against the rear face of the target support plate 20, which must then be transparent.

But many other variations are possible for designing the target carrier plate and the electronic display device 34 in this embodiment. First of all, one and the same interactive screen can fulfill both functions. It must then be strong enough to withstand impacts. It is also possible to provide an interactive front panel protective housing inside which is disposed an electronic display screen. It is possible also to provide a display of each deformation calculated by the second computer 32 by projection or backprojection on the target support plate 20.

Optionally but advantageously, the installation of FIG. 2 further comprises a tilt detector 36 (conventional inclinometer or any other equivalent device) of the target support plate 20 for the supply of at least one angular value. of inclination of its display plane, the second computer 32 is then programmed to calculate the deformation of each target representation corresponding to the inclination detected by angular correction with the aid of said at least one angular value provided by the detector tilt 36.

Optionally but also advantageous, the tilt detector

36 may additionally perform a function of adjusting the inclination of the target support plate as a function of a recorded firing power. This power can indeed be measured and recorded by the first computer 26, it can therefore be used to automatically adjust the inclination: it will for example be even lower than the last recorded power is low, for better sensitivity of the location of the impacts, and all the more so that the last recorded power is high, for a better protection of the impact surface of the plate 20. It is also necessary to adjust the inclination to obtain the best compromise between the size of impact surface and reduction of impact powers. Once the inclination thus adjusted, the second computer 32 adapts the displayed target representation deformation as a function of the set inclination.

FIG. 3 illustrates the aforementioned variant in which each deformation calculated by the second computer 32 is displayed by backprojection on the rear face of the target support plate 20. A projection device 38 is placed behind the plate 20 which is then preferably transparent and frosted. This projection device 38 may include the electronic central unit 24 or be connected to it. According to another aspect of the present invention, different and independent of the first, the front face of the plate 20, intended to receive the impacts of shots, is frosted. In this way, the rear-projected images on its rear face are formed on the front face without parallax error. In addition, a frosted front face has the advantage of being less sensitive to impacts than a transparent face that deteriorates over time. It can also be easily maintained by providing light maintenance with sandpaper to eliminate alterations or deposits. FIG. 4 illustrates the aforementioned variant according to which each deformation calculated by the second computer 32 is displayed by projection on the front face of the target support plate 20. The projection device 38 is then placed in front of the plate 20 which is preferably opaque or frosted.

The projection device 38 is for example an image projector. It can also be a video projector. A laser projector can also be chosen to project a high contrast image, in particular to form a visible circle from afar.

As illustrated in FIG. 5, the target support plate 10 or 20 may be inclined angularly around several axes, in particular two axes, of the reference plane P. A first principal axis of the reference plane P, for example that which is intended to be substantially horizontal when the installation is placed on the ground, is the axis D of FIG. 1, identified by the x-axis of FIG. 5, around which the inclination is measured using the angular value has previously defined. A second axis of the reference plane P around which the target support plate 10 or 20 can tilt is the y-axis of FIG. 5, perpendicular to the x-axis and intended to be substantially vertical when the installation is posed on the ground. The inclination around this axis y is measured using an angular value β. Any angle inclination α about the x axis causes a corresponding proportional geometric deformation in (cos a) ^"1 in the direction of the y axis for β = 0. Similarly, any angle inclination β around the y-axis generates a corresponding proportional geometric deformation in (cos β) ^{~ 1} in the direction of the x-axis for a = 0.

On the other hand, the deformation G (x, y) resulting from an inclination around the x and β axis around the y axis is given by the following relation, which is simply shown by geometrical considerations:

F (x, y) = G (x. (Cos 3) ^"1 + y (tg a). (Tg β), y (cos a) ^{" 1} ).

We find F (x, y) = G (x, y) (cos a) ^"1 ) for β = 0 and F (x, y) = G (x (cos β) ^{" 1} , y) for a = 0 .

The advantage of providing two distinct inclination axes is to play on two inclinations to reduce the power of the impacts. With a single axis, the stronger the inclination, the smaller the perceived size of the target representation is rapidly reduced so that beyond a certain limit, it becomes problematic to display representations whose dimensions can be regulated. With two axes, the decrease in size with the increase in power of the impacts is slower. We can then proceed as follows to adapt the inclination of the target support plate:

in view of an expected firing power, resulting for example from a last recorded power, it is determined whether it exceeds the capacity limit of elastic deformation of the plate,

if it is the case, the plate is inclined along the two axes with angular values a and β sufficient for the power perceived on the plate to be less than the aforementioned limit of elastic deformation capacity,

if the deformation of the target representation exceeds the maximum permissible dimensions on the abscissa: one increases a and one decreases β or one changes material for the target support plate,

if the deformation of the target representation exceeds the maximum admissible dimensions in ordinate: one increases β and one decreases or one changes of material for the target support plate.

In terms of materials, the plate 10 or 20 may be chosen, depending on the intended applications, polycarbonate, possibly shielded glass, steel alloy, etc. It is advisable to choose one or another material according to its transparency and / or resistance to the projectiles expected. With regard to the possible prefabricated support of each target representation deformation, if it is desired to have a strong opaque support, the deformed or non-deformed target representation can be formed on this support by etching, screen printing, electrochemical etching or electrochemical etching. or electroplating, or color insert in the mass.

Figure 6 illustrates another aspect of the invention, different and independent of the two previously mentioned. It is in this other aspect to provide several target representations reproducing the same pattern M but intended to be centered respectively on several centers of sight located at different points of the display plane of the plate 10 or 20 target support. For example, a first representation M1 places the center of sight in the center of the display plane, while a second representation M2 places it at the top left of the display plane, a third representation M3 places it at the top of the display plane. right of the display plane, a fourth representation M4 places it at the bottom left of the display plane and a fifth representation M5 places it at the bottom right of the display plane. The five target representations of FIG. 6 are also illustrated according to the same deformation, knowing that multiple deformations are displayable for each of them. According to this other aspect of the present invention also, the locations and successive powers of shot impacts recorded in memory 28 are provided to means for selecting a center of view location for a display allowing a distribution as homogeneous as possible of the impacts in the display plan. The successive locations can be respectively weighted by the associated impact powers. It is thus possible to define in real time a two-dimensional map of the potential damage of the target support plate and to position the aiming center in the least impacted zones. Concretely, the impact surface can be squared into zones in which the recorded impact powers are progressively added, for a displacement of the center of sight towards the least impacted zones. This makes it possible to increase the life of the target support plate 10 or 20. In the embodiment of FIG. 2, the selection means are advantageously implemented in the second computer 32 which can, at each start-up or reset, position the center of view in the zone that is least weakened, given the history of the impacts. stored in memory 28. In the embodiment of Figure 1, a man-machine interface may recommend the use of this or that optimized target sighting target representation based on knowledge of weakened areas.

FIG. 7 illustrates a variant of FIG. 6 according to which the different target representations reproducing the same pattern M placed at different locations are collected on the same support or in the same general representation. In this case, a cache must be provided to display only the desired representation among all possible.

Finally, FIG. 8 illustrates the successive steps of a method of configuring a recreational or sports shooting installation such as that of FIG. 2. For the execution of this method, the installation must at least comprise a plate of tilting target support according to at least one non-zero inclination with respect to the reference plane P and at least one reference target representation, ie without deformation, intended to be displayed in a plane of the plate when it is parallel to the plane reference P.

During a first step 100, a target representation is chosen by a user for a predetermined recreational or sports activity.

During a second optional step 102, successive locations of shot impacts recorded in memory 28 allow the second computer 32 to select an optimal sighting location for the selected target representation.

During a third optional step 104, one or more angle (s) of inclination, along one or more axis (s) of the reference plane P, is or are determined (s) in view of one or more power (s) of shooting recently estimated and registered. The resulting inclination is applied to the target support plate. By default, a non-zero inclination can be chosen by the user himself and / or measured by the detector 36.

During a fourth step 106, a deformation of the target representation selected and selected in steps 100 and 102 is calculated by the second calculator 32 using the angular value (s) of the inclination determined or measured in step 104. This calculation is carried out as indicated above so that the orthogonal projection of the deformation in the reference plane P is identical to the reference target representation when the deformation is inclined according to FIG. tilt determined or measured at step 104.

During a fifth and last step 108, the calculated strain is displayed in the plane of the plate 20 when it is inclined at the inclination determined or measured at step 104. Thus, the shooter sees the representation of target without deformation when aiming at the axis A perpendicular to the reference plane P.

It is clear that a recreational or sports shooting facility such as one of those described above makes it possible to display a target representation without deformation whatever the inclination chosen or selected from among several possible inclinations, including at least one non-zero , to protect the target support plate against high power impacts. In the embodiment of Figures 2, 3 and 4, such an installation can further be designed without consumables.

Note also that the invention is not limited to the embodiments described above. It will be apparent to those skilled in the art that various modifications can be made to the embodiments described above, in the light of the teaching just disclosed. In the presentation of the invention which is made previously between page 2 line 17 and page 4 line 33, the terms used should not be interpreted as limiting the invention to the embodiments set out in the present description, but must be interpreted to include all equivalents predicted by the the scope of those skilled in the art by applying his general knowledge to the implementation of the teaching that has just been disclosed to him.

Claims

1. A recreational or sports shooting installation comprising:

a tilting target support plate (10; 20) at a plurality of different inclinations possible with respect to a reference plane

(P).

at least one target representation (12, 12A, 12B; 30) for display in a plane (14; 34) of the target support plate (10; 20),

characterized in that each target representation (12, 12A, 12B; 30) has a plurality of different displayable deformations (12A ₀ , 12A _1; 12A ₂ , 12B ₀ , 12B _1; 12B ₂ ) respectively associated with said plural different possible inclinations, these different deformations being designed so that their orthogonal projections in the reference plane (P) are all identical when they are respectively displayed in the plane (14; 34) of the target support plate (10; the inclinations with which they are respectively associated.

2. A recreational or sports shooting installation according to claim 1, wherein each deformation (12A ₀ , 12A _1; 12A ₂ , 12B ₀ , 12B _1; 12B ₂ ) of each target representation is reproduced on a specific prefabricated support intended for be releasably disposed against the target support plate (10).

3. A recreational or sports shooting installation according to claim 1, comprising: a computer (32) programmed to calculate each deformation of each target representation (30) using at least one corresponding angular value (α, β) at the inclination associated with this deformation, and

an electronic display device (34, 38) for each deformation calculated by the computer (32).

4. A recreational or sports shooting installation according to claim 3, further comprising a detector (36) of inclination of the target support plate (20) for the supply of said at least one angular value (α, β), the computer (32) being then programmed to calculate the deformation of each target representation (30) corresponding to the inclination detected by angular correction using said at least one angular value (α, β) provided by the detector of inclination (36).

5. A recreational or sports shooting installation according to any one of claims 1 to 4, wherein the target support plate (10; angularly inclined around a first main axis (D, x) of the reference plane (P), in particular intended to be substantially horizontal when the installation is placed on the ground, and / or around a second axis (y) of the reference plane (P), perpendicular to the first main axis (D, x).

6. A recreational or sports shooting installation according to claim 5, in which:

any angle inclination α about the first principal axis (D, x) generates a corresponding proportional geometric deformation in (cos a) ^"1 in the direction orthogonal to the first principal axis of each target representation, and / or any inclination of angle β about the second axis (y) generates a corresponding proportional geometric deformation in (cos β) ^"1 in the direction orthogonal to the second axis of each target representation (12, 12A, 12B; 30).

7. A recreational or sports shooting installation according to any one of claims 1 to 6, further comprising:

a recorder (26, 28) of firepower,

a device (36) for adjusting the inclination of the target support plate (20) as a function of the recorded firing power, and a target representation deformation adapter (32) displayed in accordance with the set inclination .

8. A recreational or sports shooting installation according to any one of claims 1 to 7, wherein the plate (10; 20) target support is transparent or translucent, has a frosted front face and has a rear face against which is intended to be projected at least one target representation to form the display plane of the target support plate.

9. A recreational or sports shooting installation according to any one of claims 1 to 8, further comprising:

a firing impact location device (22, 26),

a plurality of target representations (M1, M2, M3, M4, M5) reproducing the same pattern (M) but intended to be centered respectively on several centers of sight located at different points of the display plane of the support plate (20) target, means (26, 28) for recording locations and successive power shot impacts provided by the locating device (26, 28), and

means (32) for selecting a center of view location for a selected display according to the locations and successive powers of recorded shot impacts.

10. A method of configuring a recreational or sports shooting facility comprising a tilting target support plate (20) in at least one non-zero inclination with respect to a reference plane (P) and at least one target representation of reference (30) intended to be displayed in a plane (34) of the plate (20) when it is parallel to the reference plane (P), the configuration method being characterized in that:

at least one deformation of said at least one reference target representation (30) is calculated (106) using at least one angular value (α, β) corresponding to said at least one non-zero inclination such that that the orthogonal projection of this deformation in the reference plane (P) is identical to the reference target representation (30) when the deformation is inclined according to said at least one angular value (α, β), and said at least one calculated deformation is displayed (108) in the plane (34) of the plate (20) when it is inclined according to said at least one angular value (α, β).