JP5046569B2 - Target device - Google Patents

Description

  The present invention relates to a target device used for training of actual bullet shooting, and more particularly to a target device that identifies a target bullet hit site.

  Various target devices that have been used for actual shooting training have been proposed in the past, but in recent years, not only shooting directly at the target, but also the need for advanced shooting training that hits specific sites within the target. There is a need for a target device that can identify the location of a bullet hit.

  As such a target device, for example, in Patent Document 1, at least four or more impact sensors that detect shock waves are provided at unequal intervals on a straight line of the impact plate, and the time difference of the output voltage from the impact sensor is measured. Is used to specify the shock wave source, that is, the hit site of the bullet.

  Patent Document 2 describes that a target formed for each target site such as the head and chest is joined by a buffer, and a strain detector or an acceleration detector is attached to each target. According to this, it is possible to identify the impact site of the bullet by detecting the impact at the time of landing for each target, eliminating the disturbance from the detection signal of each detector, and passing only the impact signal at the time of landing. It is said that.

JP-A-4-29000 JP 2005-134074 A

  However, in the technique described in Patent Document 1, it is sometimes impossible to accurately calculate the hit site of a bullet, and an incorrect hit site may be specified. In other words, if shooting is performed with a large number of bullets hitting the target and having holes in it, many holes will interfere with the propagation of the shock wave, which may cause an error in the time difference between the shock waves detected by each shock wave sensor. There is.

  Similarly, even in the target device described in Patent Document 2, when a bullet hits the buffer unit, there is a case in which the hit site of the bullet may not be accurately specified.

In addition, the target device has an indispensable function of the target concealment operation, and it is necessary to prevent the target from being distorted even if various concealment operations are performed. When a bullet hits the joint between each target and the buffer formed each time, the joint between the target and the buffer is peeled off, and the target may be distorted by the concealment operation in this state.
An object of the present invention is to realize a target device that accurately specifies a hit site of a bullet that hits a target and suppresses distortion of the target with respect to a concealment operation.

To solve the above problems, the target equipment of the present invention, a target of a target shooting, holding the target, and the target holding drive unit for Inken or move, hit region specifying means for specifying a bullet hit site of the target The target has a plurality of set hit sites set to identify the target bullet hit site of the target, and one or a plurality of target plates provide cushioning materials with different numbers of overlaps. The hit area specifying means has a structure formed by overlapping and sandwiching, and the hit part specifying means has a detecting means for detecting a change in the state of vibration or distortion of each target plate, and the state of each target plate detected by the detecting means A target bullet hitting site is specified based on a combination of changes.

  In other words, when a bullet hits a target, the bullet penetrates all of the stacked target plates, but the number of overlapping target plates is different at the set hit location where it is necessary to identify the bullet hit location. Therefore, the target plate that causes a change in state differs depending on the difference in the bullet hit location. And because the bullet hit location is specified based on the state change of each target plate, even if a large number of bullets hit and the target has a hole, accurately specify the bullet hit location can do.

  In addition, since the target stacks a plurality of target plates with a cushioning material in between, each target plate and the cushioning material are less likely to be peeled off by the impact of a bullet, and the target distortion due to concealment operation can be suppressed. it can.

  In this case, the detecting means is a piezoelectric element attached to each part of the target holding drive unit that holds each target plate, or a piezoelectric element attached to each target plate, and the hit part specifying means is each piezoelectric element. It is desirable to identify the target bullet hit site based on the combination of the output signals.

  According to such a configuration, the vibration or distortion of the target plate penetrated by the bullet is detected by the piezoelectric element, and the part of the target that the bullet has landed is identified by the combination of the output signals of each piezoelectric element. Even if the target has a large number of holes and hinders propagation of vibration or distortion at the time of landing, it is possible to accurately identify the hit site of the bullet.

  ADVANTAGE OF THE INVENTION According to this invention, the target apparatus which pinpointed the impact position of the bullet which hit the target correctly, and suppressed the distortion of the target with respect to concealment operation | movement can be implement | achieved.

  Hereinafter, an embodiment of a target device to which the present invention is applied will be described with reference to FIGS.

  FIG. 1 is a diagram showing a configuration of a target device according to a first embodiment of the present invention. As shown in FIG. 1, the target device 10 includes a target 1 that is a shooting aim, a target holding drive unit 2 that holds the target 1 and performs a concealment operation, and a hit part specifying unit that specifies the hit part of the bullet 3 is composed.

  The target 1 includes target plates 1a to 1c and buffer materials 1d and 1e, and the target holding drive unit 2 includes a target holder 2a that holds the target 1 and a hidden drive unit 2b that drives the target 1 in a hidden manner. Has been. Moreover, the hit site specifying means 3 includes piezoelectric elements 3a to 3c that detect a change in state such as vibration or distortion when a bullet hits each target plate 1a to 1c, and output signals of the piezoelectric elements 3a to 3c. Based on the combination, it is composed of a hit part specifying circuit 3g for specifying the landing part of the target 1 and signal lines 3d to 3f for transmitting output signals of the piezoelectric elements 3a to 3c to the hit part specifying circuit 3g, and the piezoelectric elements 3a to 3c. Are affixed to the target plates 1 a to 1 c in the vicinity of the target holder 2 a that holds the target 1.

  Here, the target holding drive unit 2 and the hitting part specifying means 3 are subjected to bulletproof treatment or exposed to bullets by shooting with a bulletproof material (not shown) for protection when a bullet hits. The surface is protected.

  FIG. 2 is a cross-sectional view of the target 1 shown in FIG. As shown in FIG. 2, the target 1 is a target plate 1 a that shows the entire shape of the target that is the target of shooting, and a target plate 1 b that is different in shape from the target plate 1 a by removing a range where a bullet hitting site is desired to be identified. 1c and cushioning materials 1d and 1e. And the target plate 1a of the whole target is arrange | positioned on the surface which can be seen from a shooter, and it has the structure which overlap | superposed the target plates 1a-1c and the buffer materials 1d and 1e alternately. As described above, the target 1 is formed so that the number of overlapping target plates 1a to 1c is different in the part that needs to identify the bullet hitting part.

  Here, the target plates 1a to 1c are made of a material such as a resin having high contractibility so that a hole opened when the bullet passes is narrowed after the bullet passes. In this embodiment, the cushioning material 1d has the same shape as the target plate 1b, and the cushioning material 1e has the same shape as the target plate 1c. However, the shape of each cushioning material 1d, 1e is as described above. It is not limited. That is, the cushioning material 1d has such a shape that vibration and distortion generated in the target plate 1a are not transmitted to the target plate 1b when a bullet hits the target plate 1a, and the target plate 1a and the target plate 1b are targeted. Any shape may be used so long as it does not come into contact with concealment operations or bullet hits. Similarly, the cushioning material 1e has such a shape that vibration or distortion generated in the target plate 1b is not transmitted to the target plate 1c when a bullet hits the target plate 1b, and the target plate 1b and the target plate 1c are targeted. Any shape may be used so long as it does not come into contact with concealment operations or bullet hits.

  Next, operation | movement of the target apparatus 1 of a present Example is demonstrated. In this embodiment, the hit sites to be identified are the head 4 of the target 1, the chest 5 and other sites 6 shown in FIG. 1, the target plate 1a is the shape of the entire target 1 hit range, and the target plate 1b is the head. 4, the target plate 1c has a shape excluding the head 4 and the chest 5.

  When a bullet hits the head 4 of the target 1, the bullet penetrates only the target plate 1a. Since the target plate 1a vibrates or distorts when penetrating, the piezoelectric element 3a attached to the target plate 1a converts the vibration or strain of the target plate 1a into an electrical signal and outputs it. At this time, the vibration or distortion of the target plate 1a is not transmitted to the target plates 1b and 1c superimposed by the cushioning materials 1d and 1e, but almost from the piezoelectric elements 3b and 3c attached to the target plates 1b to 1c. No signal is output.

  When a bullet hits the chest 5 of the target 1, the bullet penetrates the target plate 1a and the target plate 1b. Since the target plate 1a and the target plate 1b vibrate or distort when penetrating, the piezoelectric element 3a and the piezoelectric element 3b attached to the target plate 1a and the target plate 1b are vibrated or distorted by the target plate 1a and the target plate 1b. Is converted into an electrical signal and output. At this time, the vibration or distortion of the target plates 1a and 1b is not transmitted to the target plate 1c superimposed by the buffer materials 1d and 1e, and almost no electrical signal is output from the piezoelectric element 3c attached to the target plate 1c. .

  When a bullet hits the other part 6 of the target 1, the bullet penetrates the target plates 1a to 1c. Since the target plates 1a to 1c vibrate or distort when penetrating, the piezoelectric elements 3a to 3c attached to the target plates 1a to 1c convert and output the vibrations or strains of the target plates 1a to 1c to electric signals.

  The output signals of the piezoelectric elements 3a to 3c are input to the hit location specifying circuit 3g via the signal lines 3d to 3f. The hit location specifying circuit 3g is configured by the circuit block shown in FIG. 3, and after amplifying the signal input by the amplifying unit 3g-1, the magnitude and duration of the signal are input in advance by the comparing unit 3g-2. Compared to the reference value, three landing detection signals a to c are generated. Then, as shown in FIG. 4, the determination unit 3 g-3 specifies the bullet hit site of the target 1 based on the combination of the landing detection signals.

  Here, since the energy of the bullet hitting the target varies depending on the type of gun used, the magnitude and duration of the generated signal are different. Therefore, the comparison unit 3g-2 shown in FIG. 3 has a function of setting a reference value for comparison of signal magnitude and duration in advance according to the type of gun used. Further, as shown in the lower half of FIG. 4, even if the impact detection signal is not normally generated for some reason, the impact that does not occur due to the impact of the bullet so that the determination unit 3g-3 can identify the location of the impact of the bullet A combination of detection signals is also considered. Here, if it is determined that at least the other part 6 has a bullet hit, the other part 6 is identified as the bullet hit part, the bullet has not hit the other part 6, and the chest 5 When a bullet is hit, the chest 5 is specified as a bullet hit site.

  The target holding drive unit 2 takes in the result specified by the hit part specifying means 3, determines the holding state of the target 1 based on the bullet hit part of the target 1 and the number of hits to the part, and the target 1 is destroyed. Control (defeat) or appear (wake up).

  Thus, according to the target device 10 of the present embodiment, vibrations or distortions of the target plates 1a to 1c hit by the bullet are detected by the piezoelectric elements 3a to 3c, respectively, and based on a combination of output signals of the piezoelectric elements. Since the bullet hit site is specified, even if the target 1 has a large number of holes and obstructs propagation of vibration or distortion at the time of landing, the hit site of the bullet can be specified accurately.

  In addition, since the target 1 overlaps the target plates 1a to 1c with the buffer materials 1d and 1e sandwiched therebetween, each target plate and the buffer material are less likely to be peeled off by the hit of the bullet, and the target plate 1 Distortion can be suppressed. In particular, the target plate 1a has the shape of the entire target that is the target of shooting, and the strength of the target is maintained, so that it is possible to suppress the occurrence of distortion or deflection of the target due to the hidden operation.

  In this embodiment, the hitting parts to be identified are the three parts of the head 4, the chest 5 and the other parts 6, but the parts to be identified are not limited to this. That is, it is possible to further increase the number of identification sites by increasing the number of target plates having different shapes. It is also possible to change the part to be identified by changing the shape of the target plate. Furthermore, without increasing the number of target plates, the number of identification sites can be increased by changing the combination of overlapping target plates at sites where identification is required. When the number of identification parts is increased or decreased, the determination based on the combination of the circuit block of FIG. 3 or the landing detection signal of FIG. 4 may be changed corresponding to the increase or decrease of the target plate.

  FIG. 5 is a diagram showing the configuration of the target device according to the second embodiment of the present invention. As shown in FIG. 5, the target device 10 includes a target 7 that is a shooting aim, a target holding drive unit 8 that holds the target 7 and performs a concealment operation, and a hit part specifying unit that specifies the hit part of the bullet 9.

  FIG. 6 is a view showing a cross section of the target 7 shown in FIG. As shown in FIG. 6, the target 7 is connected to an outer wall 7i that forms a cavity inside the target 7, partition walls 7d to 7e that divide the cavity inside the target 7 into a plurality of spaces 7a to 7c, and the spaces 7a to 7c. It is composed of air conduits 7f to 7h. Further, the outer wall 7i and the partition walls 7d and 7e are made of a material such as a resin having high contractibility so that a hole opened when the bullet passes is narrowed after the bullet passes.

  In the present embodiment, the spaces 7a to 7c and the air conduits 7f to 7h connected to the spaces are distinguished from each other. However, they are classified for convenience of explanation and may be combined in terms of structure.

  The target holding / driving unit 8 includes a target holder 8a that holds the target 7 and a concealment driving unit 8b that conceals the target 7.

  The hit location specifying means 9 includes sound pressure sensors 9a to 9c for detecting pressure changes or sound pressure changes in the spaces when the bullets pass through the spaces 7a to 7c, or state changes in the spaces such as air vibrations, Based on the combination of the output signals of the sound pressure sensors 9a to 9c, a hit part specifying circuit 9g for specifying the landing part of the target 7 and a signal line for transmitting the output signals of the sound pressure sensors 9a to 9c to the hit part specifying circuit 9g It is composed of 9d to 9f. Here, in this embodiment, the sound pressure sensors 9a to 9c are attached to the target holder 8a, but the attachment position is not limited.

  In addition, the target holding drive unit 8 and the hitting part specifying means 9 are subjected to bulletproof treatment for protection when a bullet hits, or are exposed to bullets by shooting with a bulletproof material (not shown). Is protected.

  Next, the operation of this embodiment will be described. When a bullet hits the head 4 of the target 7, the bullet passes only in the space 7a. At the time of passage, the state of pressure change, sound pressure change or air vibration in the space 7a changes, and the change is detected by the sound pressure sensor 9a via the air conduit 7f and converted into an electrical signal. At this time, the state change in the space 7a is not transmitted to the spaces 7b and 7c by the partition walls 7d and 7e, and almost no electrical signal is output from the sound pressure sensors 9b and 9c. Even if holes due to bullet penetration are opened in the partition walls 7d and 7e, the electric pressure is hardly output from the sound pressure sensors 9b and 9c because the state change of the spaces 7b and 7c is small due to the pressure loss of the holes.

  When a bullet hits the chest 5 of the target 7, the bullet passes through the spaces 7a and 7b. When passing, the state of pressure change or sound pressure change or air vibration in the spaces 7a and 7b changes, and the change is detected by the sound pressure sensors 9a and 9b via the air conduits 7f and 7g. Converted to output. At this time, the state change in the spaces 7a and 7b is not transmitted to the space 7c by the partition wall 7e, and an electric signal is hardly output from the sound pressure sensor 9c.

  When a bullet hits the other part 6 of the target 7, the bullet passes through the spaces 7a to 7c. During the passage, the state of pressure change or sound pressure change or air vibration in the spaces 7a to 7c changes, and the change is detected by the sound pressure sensors 9a to 9c via the air conduits 7f to 7h. Converted to output.

  Output signals of the sound pressure sensors 9a to 9c are input to the hit location specifying circuit 9g via the signal lines 9d to 9f. The operation in the hit location specifying circuit 9g is the same as the operation of the hit location specifying circuit 3g in the first embodiment described above. That is, it is possible to specify which part of the target 7 the bullet has landed on the basis of the combination of output signals of the sound pressure sensors 9a to 9c. Further, the control of the concealment operation of the target 7 after specifying the landing site is the same as in the first embodiment.

  Thus, according to the target device 10 of the present embodiment, it is specified which part of the target 7 the bullet has landed on the basis of the combination of the output signals of the sound pressure sensors 9a to 9c. The hit site can be identified. Even if there are many holes in the target, such holes have a large pressure loss, so the pressure change in the landed space hardly propagates to the non-landed space, and the bullet hits accurately. A site can be identified.

  In addition, the target 7 is formed by an outer wall 7i that forms a cavity inside and partition walls 7d and 7e that divide the cavity into a plurality of spaces 7a to 7c, and the strength is maintained. Can be suppressed.

  Here, in this embodiment, the hitting parts to be identified are the three parts of the head 4, the chest 5, and the other parts 6, but the identification parts are not limited to these three parts. That is, it is possible to further increase the number of identification parts by increasing the number of partition walls, and it is also possible to change the part to be identified by changing the shape of the space. When the number of identification parts is increased / decreased or changed, the determination based on the combination of the circuit block of FIG. 3 or the landing detection signal of FIG.

  FIG. 7 is a diagram showing a target configuration of the target device according to the third embodiment of the present invention. As shown in FIG. 7, the target device 10 includes a target 11 that is a shooting aim, a target holding drive unit 12 that holds the target and performs a cover-up operation, and a hit part specifying unit 13 that identifies the hit part of the bullet. It is configured.

  The target 11 includes target plates 11a and 11b and a buffer material 11c. The target plate 11a has a shape imitating the human body that shows the entire shape of the target to be shot, and the target plate 11b has a shape excluding the head 4 and chest 5 of the human body. The target plate 11a and the target plate 11b Thus, the buffer material 11c is sandwiched. Further, the target plates 7a to 7b are made of a material such as resin having high contractibility so that a hole opened when the bullet passes is narrowed after the bullet passes. Furthermore, piezoelectric elements 13a and 13b are affixed in the vicinity of a portion held by the target holding and driving unit 12 below the target plates 11a and 11b.

  Next, operation | movement of the target apparatus 10 of a present Example is demonstrated. When a bullet hits the head 4 of the target 11, the bullet penetrates only the target plate 11a. At the time of penetration, the target plate 11a vibrates or distorts, and the piezoelectric element 13a attached to the target plate 11a converts the vibration or distortion of the target plate 11a into an electrical signal and outputs it. At this time, the vibration or distortion of the target plate 11a is not transmitted to the target plate 11b overlapped by the buffer material 11c, and almost no electrical signal is output from the piezoelectric element 13b attached to the target plate 11b.

  When a bullet hits the chest 5 of the target 11, the bullet penetrates only the target plate 11 a as in the case where the bullet hits the head 4, and the target plate 11 a vibrates or distorts when penetrating. The element 13a converts the vibration or distortion of the target plate 11a into an electric signal and outputs it. However, since the distance from the hit site to the piezoelectric element 13a is shorter than when a bullet hits the head 4, vibration and distortion at the site where the piezoelectric element 13a is attached increase, and the level of the output electrical signal is high. The signal becomes longer and the duration of the signal becomes longer. At this time, the vibration and distortion of the target plate 11a are not transmitted to the target plate 11b superimposed by the buffer material 11c, and almost no electrical signal is output from the piezoelectric element 13b.

  When a bullet hits the other part 6 of the target 11, the bullet penetrates the target plates 11a and 11b. At the time of penetration, the target plates 11a and 11b vibrate or distort, and the piezoelectric elements 13a and 13b convert the vibration or strain of the target plates 11a and 11b into electric signals and output them. The output signals of the piezoelectric elements 13a and 13b are input to the hit location specifying circuit 13g via the signal lines 13d and 13e.

  The hit location specifying circuit 13g amplifies the two signals input by the amplifying unit 13g-1 by the circuit block shown in FIG. 8, and then the magnitude and duration of the signal are input in advance by the comparing unit 13g-2. Compared with the reference value, three landing detection signals a to c are generated. Then, each of the landing detection signals shown in FIG. 9 is compared by the determination unit 13g-3, and the bullet hitting part of the target 11 is specified.

  Here, since the energy of the bullet hitting the target varies depending on the type of gun used, the magnitude and duration of the generated signal are different. Therefore, the comparison unit 13g-2 shown in FIG. 8 has a function of setting a reference value for comparison of signal magnitude and duration according to the type of gun used in advance. In addition, FIG. 9 also describes a combination of landing detection signals that do not occur due to bullet hitting so that the hitting part can be identified by the determination unit even if the landing detection signal is not normally generated for some reason. is doing.

  The target holding drive unit 12 takes in the result specified by the hit part specifying means 13, determines the holding state of the target 11 based on the bullet hit part of the target 11 and the number of hits to the part, and the target 11 is destroyed ( Control the appearance (wake up).

  At this time, since the target plate 11a has the shape of the target as a target for shooting, the strength of the target 11 is maintained, and the distortion or deflection of the target 11 with respect to the concealment operation caused by the target swinging around the lower part of the target. Is suppressed. As a result, the shape of the target 11 is maintained.

  In the present embodiment, the hit sites to be identified are the three locations of the head 4, the chest 5, and the other sites 6, but identification other than these three locations is not limited. That is, by changing the shape of the target plate 11b or increasing the number of target plates, it is also possible to increase the number of identification parts or change the parts to be identified. When the number of identification parts is increased or decreased, the determination based on the combination of the circuit block of FIG. 8 or the landing detection signal of FIG. 9 may be changed corresponding to the increase or decrease of the target plate.

  As described above, according to the target device 10 of the present invention as described in the first to third embodiments, when a bullet hits a target, the state change of each target obtained by the difference in the hit site, or each inside the target Because it is possible to recognize the difference in the combination of changes in the state of the space, no matter where the bullet hits the target, the bullet hit location can be accurately determined using inexpensive sensors and simple circuitry and logic. It becomes possible to specify. Moreover, it becomes possible to change the holding | maintenance state of a target with the specified hit site.

  Furthermore, when a bullet hits the target, a through hole opens in the target, but since the target is a highly shrinkable resin, it becomes a through hole with a diameter smaller than the diameter of the bullet, and the bullet hits the same place again. However, a difference in the state change of each target obtained by the difference in the hit site or a combination of state changes in each space inside the target occurs, and the hit site can be accurately specified. In addition, at least one target plate or outer wall that constitutes the target indicates the entire shape of the target that is the target of the shooting, so that the strength of the target is maintained, and after a large number of bullets hit, it is swung by the concealment operation Even so, distortion of the target can be suppressed.

It is a figure which shows the structure of the target apparatus of 1st Example of this invention. It is sectional drawing of the target in the target apparatus of 1st Example. It is explanatory drawing of the hit location specific circuit in the target apparatus of 1st and 2nd Example. It is explanatory drawing of the determination part in the target apparatus of 1st and 2nd Example. It is a figure which shows the structure of the target apparatus of 2nd Example of this invention. It is sectional drawing of the target in the target apparatus of 2nd Example. It is a figure which shows the structure of the target apparatus of 3rd Example of this invention. It is explanatory drawing of the hit location specific | specification circuit in the target apparatus of 3rd Example. It is explanatory drawing of the determination part in the target apparatus of 3rd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Target 1a-1c Target board 1d, 1e Buffer material 2 Target holding | maintenance drive part 3 Hit site | part identification means 3a-3c Piezoelectric element 7 Target 7a-7c Space 7d, 7e Bulkhead 7f-7h Air conduit 7i Outer wall 8 Target holding drive part 9 Hit location specifying means 9a to 9c Sound pressure sensor 11 Target 11a, 11b Target plate 11c Buffer material 12 Target holding drive unit 13 Hit location specifying means 13a, 13b Piezoelectric element

Claims (4)

A target of a target shooting, holding the target, the target device including a target holding drive unit for Inken or move, and a hit region specifying means for specifying a bullet hit the site of the target, said target, said It has a structure in which one or a plurality of target plates are overlapped with a cushioning material on a plurality of set hit sites set to identify target bullet hit sites with different numbers of stacks. The hit location specifying means has detection means for detecting a change in state of each vibration or distortion of each target plate, and based on a combination of the change in state of each target plate detected by the detection means A target device characterized by identifying a target bullet hit site.   2. The target device according to claim 1, wherein the detection unit is a piezoelectric element that is attached to a portion of the target holding driving unit that holds the target plate, or a piezoelectric element that is attached to each of the target plates. The target device is characterized in that the hit location specifying means specifies the target bullet hit location based on a combination of output signals of the piezoelectric elements. The target device according to claim 1 or 2, wherein the target is larger in one target plate showing the entire shape of the target than in one or more target plates having a smaller shape than the one target plate. A target device, wherein the target device is formed by overlapping in order from a shape .   4. The target device according to claim 1, wherein the target holding drive unit changes a holding state of the target based on a bullet hitting part of the target specified by the hitting part specifying unit. Target device.

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