Imitation swords and imitation sword systems

Abstract

To provide a pseudo sword capable of accurately detecting a thrust.SOLUTION: A pseudo sword includes a sword body extending in an X-axis direction, a grip part connected to an end in a negative direction of the X-axis of the sword body, a first object detection sensor provided at an end in a positive direction of the X-axis of the sword body and outputting a first object detection signal used for determining whether or not an object is located in the positive direction of the X-axis of the sword body, and a deformation detection sensor provided in the sword body and outputting a deformation detection signal used for determining whether or not the sword body is deformed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an imitation sword and an imitation sword system. [Background technology]

[0002] As an example of a conventional invention relating to an imitation sword, the fencing equipment described in Patent Document 1 is known. This fencing equipment comprises a blade and a hit detector. The hit detector is provided at the tip of the blade. The hit detector detects when the blade hits the opponent's body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 64-86988 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the fencing equipment described in Patent Document 1, there is a demand for more accurate detection of thrusts.

[0005] Therefore, an object of the present invention is to provide an imitation sword and an imitation sword system that can detect thrusts more accurately. [Means for solving the problem]

[0006] The imitation sword according to one embodiment of the present invention is: The sword body extends in the X-axis direction, A grip part connected to the end part of the sword body in the negative direction of the X-axis; A first object detection sensor is provided at an end of the sword body in the positive direction of the X-axis, and outputs a first object detection signal used to determine whether or not an object is located in the positive direction of the X-axis of the sword body. a deformation detection sensor provided on the sword body and outputting a deformation detection signal used to determine whether the sword body has been deformed; It is equipped with:

[0007] The imitation sword according to one embodiment of the present invention is: The sword body extends in the X-axis direction, A grip part connected to the end part of the sword body in the negative direction of the X-axis; A plurality of object detection sensors are provided at the end of the sword body in the positive direction of the X-axis, and output object detection signals used to determine whether or not the end of the sword body in the positive direction of the X-axis has come into contact with an object; Equipped with When viewed in the X-axis direction, each of the distances from the multiple object detection sensors to the outer edge of the end of the sword body in the positive direction of the X-axis is shorter than the distance from the multiple object detection sensors to the center of the end of the sword body in the positive direction of the X-axis. Effect of the Invention

[0008] According to the present invention, a thrust can be detected more accurately. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram of a replica sword 10. [Diagram 2] FIG. 2 is a cross-sectional view of the imitation sword 10. [Diagram 3] FIG. 3 is a cross-sectional view of the imitation sword 10. [Figure 4] FIG. 4 is a flowchart executed by the determination device 20. [Diagram 5] FIG. 5 is a cross-sectional view of the imitation sword 10a. [Figure 6] FIG. 6 is a cross-sectional view of the imitation sword 10b. [Figure 7] FIG. 7 is a cross-sectional view of the imitation sword 10c. [Figure 8] FIG. 8 is a view of the end of the imitation sword 10c on the positive side of the X-axis as viewed in the X-axis direction. [Figure 9]FIG. 9 is a block diagram of the pseudo sword system 1. [Figure 10] FIG. 10 is a cross-sectional view of the imitation sword 10e. [Figure 11] FIG. 11 is a view of the end of the imitation sword 10f on the positive side of the X-axis as viewed in the X-axis direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (First embodiment) [Structure of the imitation sword 10] The structure of the imitation sword 10 according to the first embodiment of the present invention will be described below. Fig. 1 is a schematic diagram of the imitation sword 10. Figs. 2 and 3 are cross-sectional views of the imitation sword 10. Figs. 2 and 3 show cross sections parallel to the X-axis. The X-axis is the direction in which the sword body 11 extends.

[0011] The imitation sword 10 is, for example, a toy sword. The imitation sword 10 includes a sword body 11, a grip portion 13, a determination device 20, a first object detection sensor 22, and a deformation detection sensor 24, as shown in Figs.

[0012] The sword body 11 extends in the X-axis direction. The sword body 11 includes a cushioning material 12 and a case 14. The case 14 extends in the X-axis direction. The case 14 is made of a hard material such as resin or metal.

[0013] The cushioning material 12 is connected to the casing 14 in the positive direction of the X-axis. The cushioning material 12 covers the end of the casing 14 in the positive direction of the X-axis. The cushioning material 12 is the end of the sword body 11 in the positive direction of the X-axis. The length of the cushioning material 12 in the X-axis direction is shorter than the length of the casing 14 in the X-axis direction. The cushioning material 12 is more easily deformed than the casing 14. The material of the cushioning material 12 is a porous material such as sponge. The Young's modulus of the material of the cushioning material 12 is smaller than the Young's modulus of the material of the casing 14.

[0014] The grip part 13 is connected to the end part in the negative direction of the X-axis of the sword body 11. The grip part 13 is held by the user.

[0015] The first object detection sensor 22 is provided at the end of the sword body 11 in the positive direction of the X-axis. In this embodiment, the first object detection sensor 22 is provided in the buffer material 12. A first recess G1 recessed in the negative direction of the X-axis is provided at the end of the buffer material 12 in the positive direction of the X-axis. The first object detection sensor 22 is provided in the first recess G1. The first object detection sensor 22 is located on the bottom surface of the first recess G1. As a result, the first object detection sensor 22 is separated from the end of the sword body 11 in the positive direction of the X-axis by 5 mm or more. In addition, the first object detection sensor 22 is located in the center of the end of the sword body 11 in the positive direction of the X-axis when viewed in the X-axis direction.

[0016] The first object detection sensor 22 outputs a first object detection signal Sig1 used to determine whether or not the object 100 is located in the positive direction of the X-axis of the sword body 11. More specifically, the first object detection sensor 22 is an infrared sensor. Therefore, the first object detection sensor 22 does not have a moving part. The first object detection sensor 22 has an infrared emitting part and an infrared receiving part. The infrared emitting part is, for example, an infrared LED. The infrared receiving part is, for example, a photodiode or a phototransistor. The infrared emitting part emits infrared rays in the positive direction of the X-axis as shown in FIG. 2. In FIG. 2, the object 100 is not located in the positive direction of the X-axis of the sword body 11. Therefore, the infrared rays travel in the positive direction of the X-axis. As a result, the infrared receiving part does not receive the infrared rays. In this case, the first object detection signal Sig1 has a first reference potential.

[0017] On the other hand, in FIG. 3, the object 100 is located in the positive direction of the X-axis of the sword body 11. Therefore, the infrared rays are reflected by the object 100 in the negative direction of the X-axis. As a result, the infrared receiving unit receives the infrared rays. The intensity of the infrared rays received by the infrared receiving unit depends on the distance between the first object detection sensor 22 and the object 100. More specifically, the intensity of the infrared rays received by the infrared receiving unit becomes stronger when the distance between the first object detection sensor 22 and the object 100 becomes shorter. The first object detection signal Sig1 has a voltage that depends on the intensity of the infrared rays received by the infrared receiving unit. The voltage of the first object detection signal Sig1 is the difference between the potential of the first object detection signal Sig1 and the first reference potential.

[0018] The deformation detection sensor 24 is provided on the sword body 11. The deformation detection sensor 24 outputs a deformation detection signal Sig2 used to determine whether or not the sword body 11 has been deformed. In this embodiment, the deformation detection sensor 24 is provided on the cushioning material 12. The deformation detection sensor 24 is embedded in the cushioning material 12. The deformation detection sensor 24 outputs a deformation detection signal Sig2 used to determine whether or not the cushioning material 12 has been deformed.

[0019] The deformation detection sensor 24 is a piezoelectric sensor. The piezoelectric sensor includes a piezoelectric film such as PVDF or PLLA. As shown in Fig. 2, when the object 100 is not in contact with the cushioning material 12, no deformation occurs in the cushioning material 12. Therefore, the deformation detection signal Sig2 has the second reference potential.

[0020] On the other hand, as shown in Fig. 3, when the object 100 is in contact with the cushioning material 12, the cushioning material 12 is compressed in the X-axis direction. As a result, the deformation detection sensor 24 is compressed in the X-axis direction. As a result, polarization occurs in the piezoelectric film of the deformation detection sensor 24. The deformation detection sensor 24 then outputs a deformation detection signal Sig2 having a voltage magnitude according to the amount of compression of the deformation detection sensor 24 in the X-axis direction. The voltage of the deformation detection signal Sig2 is the difference between the potential of the deformation detection signal Sig2 and a second reference potential.

[0021] Furthermore, when the object 100 is in contact with the cushioning material 12, the cushioning material 12 may be compressed in the X-axis direction, but not uniformly. In this case, the deformation detection sensor 24 is compressed in the X-axis direction, but not uniformly. Due to the distribution of compressive stress in the X-axis direction, expansion and contraction occur in a planar direction perpendicular to the X-axis, and the amount of expansion and contraction is proportional to the amount of compression in the X-axis direction. Therefore, even a piezoelectric material such as PLLA, which generates polarization due to expansion and contraction in a planar direction perpendicular to the X-axis, can output the deformation detection signal Sig2.

[0022] The determination device 20 determines whether or not a thrust has been made by the imitation sword 10 based on the first object detection signal Sig1 and the deformation detection signal Sig2. The determination device 20 is, for example, a CPU (Central Control Unit). The determination device 20 is, for example, embedded in the grip portion 13.

[0023] [Operation of the determination device 20] The operation of the determination device 20 will be described below with reference to the drawings. Fig. 4 is a flowchart executed by the determination device 20. The determination device 20 executes the flowchart by executing a program stored in a storage device (not shown).

[0024] This process is started by turning on the power of the imitation sword 10. The determination device 20 acquires a first object detection signal Sig1 and a deformation detection signal Sig2 (step S1).

[0025] Next, the determination device 20 determines whether or not the object 100 is located in the positive direction of the X-axis of the sword body 11 based on the first object detection signal Sig1 (step S1). More specifically, the determination device 20 determines whether or not the voltage of the first object detection signal Sig1 becomes larger than a first predetermined voltage. The first predetermined voltage is set to the voltage of the first object detection signal Sig1 when the object 100 contacts the end of the sword body 11 in the positive direction of the X-axis. The first predetermined voltage may also be set to a value slightly higher than the voltage of the first object detection signal Sig1 when the object 100 contacts the end of the sword body 11 in the positive direction of the X-axis. In this way, the determination device 20 determines whether or not the object 100 is located near the first object detection sensor 22 in the positive direction of the X-axis. More precisely, the determination device 20 determines whether or not the object 100 located in the positive direction of the X-axis of the first object detection sensor 22 is in contact with the sword body 11. If the object 100 is located, the process proceeds to step S3. If the object 100 is not located, the process proceeds to step S4.

[0026] When the object 100 is located, the determination device 20 determines whether or not the sword body 11 has been deformed based on the deformation detection signal Sig2 (step S3). More specifically, the determination device 20 determines whether or not the voltage of the deformation detection signal Sig2 has become higher than a second predetermined voltage. The second predetermined voltage is set to the voltage of the deformation detection signal Sig2 when deformation occurs in the sword body 11 due to a thrust. If the sword body 11 has been deformed, the process proceeds to step S3. If the sword body 11 has not been deformed, the process proceeds to step S4.

[0027] When the sword body 11 is deformed, the determination device 20 determines that a thrust by the imitation sword 10 has occurred. In this way, when the determination device 20 determines that the object 100 is located in the positive direction of the X-axis of the sword body 11 based on the first object detection signal Sig1 and determines that the sword body 11 has been deformed based on the deformation detection signal Sig2, it determines that a thrust by the imitation sword 10 has occurred. In this embodiment, when the determination device 20 determines that the object 100 has come into contact with the sword body 11 in the positive direction of the X-axis based on the first object detection signal Sig1 and determines that a sufficient load has been applied to the sword body 11 based on the deformation detection signal Sig2, it determines that a thrust by the imitation sword 10 has occurred. After this, the process ends.

[0028] In step S4, the determination device 20 determines that a thrust by the imitation sword 10 has not occurred. In this way, when the determination device 20 determines that the object 100 is not located in the positive direction of the X-axis of the sword main body 11 based on the first object detection signal Sig1, or when the determination device 20 determines that the sword main body 11 has not deformed based on the deformation detection signal Sig2, it determines that a thrust by the imitation sword 10 has not occurred. After this, the process returns to step S1.

[0029] [effect] The imitation sword 10 allows for more accurate detection of a thrust. More specifically, a thrust of the imitation sword 10 occurs when the end of the imitation sword 10 in the positive direction of the X-axis comes into contact with the object 100 located in the positive direction of the X-axis of the imitation sword 10. Therefore, the condition for the imitation sword 10 to thrust is that the object 100 is located in the positive direction of the X-axis of the sword body 11 and that the sword body 11 is deformed. Therefore, the first object detection sensor 22 outputs a first object detection signal Sig1 used to determine whether the object 100 is located in the positive direction of the X-axis of the sword body 11. The deformation detection sensor 24 outputs a deformation detection signal Sig2 used to determine whether the sword body 11 is deformed. This allows the determination device 20 to determine the occurrence of a thrust by the imitation sword 10 based on the first object detection signal Sig1 and the deformation detection signal Sig2. Furthermore, the imitation sword 10 reduces erroneous determinations by the determination device 20, as will be described below.

[0030] When the object 100 contacts the imitation sword 10 from a diagonal direction with respect to the X-axis, the determination device 20 does not erroneously determine that a thrust by the imitation sword 10 has occurred. More specifically, when the object 100 contacts the imitation sword 10 from a diagonal direction with respect to the X-axis, the object 100 is not located in the positive direction of the X-axis of the sword body 11. Therefore, the first object detection signal Sig1 has a voltage lower than the first predetermined voltage. As a result, the determination device 20 determines that a thrust by the imitation sword 10 has not occurred even if the voltage of the deformation detection signal Sig2 is higher than the second predetermined voltage. Therefore, the occurrence of erroneous determinations is suppressed for the imitation sword 10.

[0031] In addition, the first object detection sensor 22 is located 5 mm or more away from the end of the sword body 11 in the positive direction of the X-axis. This prevents the first object detection sensor 22 from coming into contact with the object 100 when a thrust is made by the imitation sword 10.

[0032] In addition, the first object detection sensor 22 does not have a moving part, which prevents the first object detection sensor 22 from being damaged due to the object 100 coming into contact with the first object detection sensor 22 when a thrust is made by the artificial sword 10.

[0033] Moreover, the first object detection sensor 22 is provided in the first recess G1. This prevents the first object detection sensor 22 from coming into contact with the object 100 when the imitation sword 10 thrusts. This prevents the attitude of the first object detection sensor 22 from changing due to impact when the imitation sword 10 thrusts. As a result, erroneous judgment by the judgment device 20 is suppressed for the imitation sword 10.

[0034] Moreover, it is preferable that the deformation detection sensor 24 does not have a moving part. This prevents the deformation detection sensor 24 from being damaged by the deformation of the cushioning material 12 caused by the contact of the object 100 with the imitation sword 10 when the imitation sword 10 thrusts.

[0035] Furthermore, the cushioning material 12 is more easily deformed than the housing 14. Therefore, the deformation detection sensor 24 is provided on the cushioning material 12. The amount of deformation of the deformation detection sensor 24 increases. As a result, the voltage of the deformation detection signal Sig2 increases. This makes it easier for the determination device 20 to determine the occurrence of a thrust by the imitation sword 10.

[0036] In addition, the sword body 11 includes a cushioning material 12. Therefore, the user does not need to wear protective gear.

[0037] (First Modification) The imitation sword 10a according to the first modified example will be described with reference to the drawings. Fig. 5 is a cross-sectional view of the imitation sword 10a.

[0038] The imitation sword 10a differs from the imitation sword 10 in the position where the deformation detection sensor 24 is provided. More specifically, the deformation detection sensor 24 is provided at the end of the casing 14 in the positive direction of the X-axis. As a result, the deformation detection sensor 24 outputs a deformation detection signal Sig2 used to determine whether the casing 14 has been deformed. Such a deformation detection sensor 24 is a strain gauge. The strain gauge includes a piezoresistance element. When a force is applied to the strain gauge, the resistance value of the strain gauge changes according to the amount of strain. Then, the determination device 20 determines that the casing 14 has been deformed when the change in the resistance value of the strain gauge becomes greater than a predetermined value. The other structures of the imitation sword 10a are the same as those of the imitation sword 10, so a description thereof will be omitted.

[0039] (Second Modification) The imitation sword 10b according to the second modified example will be described with reference to the drawings. Fig. 6 is a cross-sectional view of the imitation sword 10b.

[0040] The imitation sword 10b differs from the imitation sword 10a in that a cavity Sp is provided in the housing 14. The cavity Sp overlaps with the deformation detection sensor 24 when viewed in the X-axis direction. This makes it easier for the portion of the housing 14 where the deformation detection sensor 24 is provided to deform. This increases the amount of deformation of the deformation detection sensor 24. This in turn increases the voltage of the deformation detection signal Sig2. This makes it easier for the determination device 20 to determine the occurrence of a thrust by the imitation sword 10b. The rest of the structure of the imitation sword 10b is the same as that of the imitation sword 10a, so a description thereof will be omitted.

[0041] (Third Modification) The imitation sword 10c according to the third modified example will be described with reference to the drawings. Fig. 7 is a cross-sectional view of the imitation sword 10c. Fig. 8 is a view of the end of the imitation sword 10c on the positive side of the X-axis as viewed in the X-axis direction.

[0042] The imitation sword 10c differs from the imitation sword 10 in that it further includes a second object detection sensor 42. The second object detection sensor 42 outputs a second object detection signal Sig3 used to determine whether or not an object 100 is located in the positive direction of the X-axis of the sword body 11. Therefore, the second object detection sensor 42 is provided at the end of the sword body 11 in the positive direction of the X-axis. More specifically, a second recess G2 recessed in the negative direction of the X-axis is provided at the end of the cushioning material 12 in the positive direction of the X-axis. The second object detection sensor 42 is provided in the second recess G2.

[0043] Here, the first recess G1, the center C of the end of the cushioning material 12 in the positive direction of the X axis, and the second recess G2 are lined up in this order on the first straight line L1 when viewed in the X axis direction. Also, when viewed in the X axis direction, the distance D1 from the first object detection sensor 22 to the outer edge E of the end of the cushioning material 12 in the positive direction of the X axis is shorter than the distance D2 from the first object detection sensor 22 to the center C of the end of the cushioning material 12 in the positive direction of the X axis. When viewed in the X axis direction, the distance D3 from the second object detection sensor 42 to the outer edge E of the end of the cushioning material 12 in the positive direction of the X axis is shorter than the distance D4 from the second object detection sensor 42 to the center C of the end of the cushioning material 12 in the positive direction of the X axis.

[0044] The determination device 20 determines whether or not the object 100 is located in the positive direction of the X-axis of the sword body 11 based on the first object detection signal Sig1 of the first object detection sensor 22 and the second object detection signal Sig3 of the second object detection sensor 42. Specifically, the determination device 20 determines that the object 100 is located in the positive direction of the X-axis of the sword body 11 when the voltage of the first object detection signal Sig1 and the voltage of the second object detection signal Sig3 are higher than a first predetermined voltage. In other words, the determination device 20 determines that the object 100 is not located in the positive direction of the X-axis of the sword body 11 when only one of the voltages of the first object detection signal Sig1 and the second object detection signal Sig3 is higher than the first predetermined voltage. The other structure of the imitation sword 10c is the same as that of the imitation sword 10, so a description thereof will be omitted.

[0045] According to the imitation sword 10c, erroneous judgment by the judgment device 20 is suppressed. More specifically, the first recess G1, the center C of the end of the cushioning material 12 in the positive direction of the X-axis, and the second recess G2 are arranged in this order on the first straight line L1 when viewed in the X-axis direction. The first object detection sensor 22 is provided in the first recess G1. The second object detection sensor 42 is provided in the second recess G2. In this case, when the object 100 contacts the imitation sword 10 from a diagonal direction with respect to the X-axis, only the voltage of the first object detection signal Sig1 of the first object detection sensor 22 or only the voltage of the second object detection signal Sig3 of the second object detection sensor 42 becomes higher than the first predetermined voltage. In this case, the judgment device 20 judges that the object 100 is not located in the positive direction of the X-axis of the sword body 11. Then, the judgment device 20 judges that the thrust by the imitation sword 10 has not occurred. As a result, the imitation sword 10c reduces erroneous determinations by the determination device 20.

[0046] Second embodiment The pseudo sword system 1 according to the second embodiment will be described with reference to the drawings. Fig. 9 is a block diagram of the pseudo sword system 1.

[0047] The imitation sword system 1 comprises a imitation sword 10d and a processing device 200. The imitation sword 10d differs from the imitation sword 10 in that it comprises a communication device 60 instead of the determination device 20. The communication device 60 transmits a first object detection signal Sig1 and a deformation detection signal Sig2 to the processing device 200. The rest of the structure of the imitation sword 10d is the same as that of the imitation sword 10, so a description thereof will be omitted.

[0048] The processing device 200 is, for example, a game machine or a personal computer. The processing device 200 includes a determination device 202 and a communication device 204. The communication device 204 receives the first object detection signal Sig1 and the deformation detection signal Sig2 transmitted from the communication device 60. The determination device 202 determines whether or not a thrust has been made by the imitation sword 10 based on the first object detection signal Sig1 and the deformation detection signal Sig2. The operation performed by the determination device 202 is the same as that performed by the determination device 20, and therefore a description thereof will be omitted.

[0049] Third embodiment The imitation sword 10e according to the third embodiment will be described with reference to the drawings. Fig. 10 is a cross-sectional view of the imitation sword 10e. Fig. 8 is used as a view of the end of the imitation sword 10e on the positive side of the X-axis as viewed in the X-axis direction.

[0050] The imitation sword 10e differs from the imitation sword 10c in that it does not include a deformation detection sensor 24. That is, the imitation sword 10e includes a first object detection sensor 22 and a second object detection sensor 42 (a plurality of object detection sensors).

[0051] The first object detection sensor 22 outputs a first object detection signal Sig1 used to determine whether or not an end of the sword body 11 has come into contact with an object 100 in the positive direction of the X axis. The second object detection sensor 42 outputs a second object detection signal Sig3 used to determine whether or not an end of the sword body 11 has come into contact with an object 100 in the positive direction of the X axis.

[0052] The first recess G1, the center C of the end of the cushioning material 12 in the positive direction of the X-axis, and the second recess G2 are arranged in this order on the first straight line L1 when viewed in the X-axis direction. Also, when viewed in the X-axis direction, the distances D1 and D3 from the first object detection sensor 22 and the second object detection sensor 42 (multiple object detection sensors) to the outer edge E of the end of the sword body 11 in the positive direction of the X-axis are shorter than the distances D2 and D4 from the first object detection sensor 22 and the second object detection sensor 42 (multiple object detection sensors) to the center C of the end of the sword body 11 in the positive direction of the X-axis. And the center of gravity of the first object detection sensor 22 and the second object detection sensor 42 coincides with the center C of the end of the sword body 11 in the positive direction of the X-axis.

[0053] The determination device 20 determines whether or not the end of the sword main body 11 in the positive direction of the X-axis has come into contact with an object, based on the first object detection signal Sig1 of the first object detection sensor 22 and the second object detection signal Sig3 of the second object detection sensor 42. In other words, the determination device 20 determines whether or not a thrust has been made by the imitation sword 10e, based on the first object detection signal Sig1 of the first object detection sensor 22 and the second object detection signal Sig3 of the second object detection sensor 42.

[0054] Specifically, when the voltage of the first object detection signal Sig1 and the voltage of the second object detection signal Sig3 become higher than a first predetermined voltage, the determination device 20 determines that the end of the sword body 11 in the positive direction of the X-axis has come into contact with the object 100. In this case, the determination device 20 determines that a thrust by the imitation sword 10e has occurred.

[0055] On the other hand, when only one of the voltages of the first object detection signal Sig1 and the second object detection signal Sig3 is higher than the first predetermined voltage, the determination device 20 determines that the end of the sword body 11 did not contact the object 100 in the positive direction of the X-axis. Also, when both the voltages of the first object detection signal Sig1 and the second object detection signal Sig3 are not higher than the first predetermined voltage, the determination device 20 determines that the end of the sword body 11 did not contact the object 100 in the positive direction of the X-axis. In this case, the determination device 20 determines that no thrust was made by the imitation sword 10e. The other structure of the imitation sword 10e is the same as that of the imitation sword 10c, so a description thereof will be omitted.

[0056] The imitation sword 10e allows for more accurate determination of thrusts. More specifically, in the X-axis direction, the first object detection sensor 22 has distances D1 and D3 from the first object detection sensor 22 and the second object detection sensor 42 (multiple object detection sensors) to the outer edge E of the sword body 11 at the positive end of the X-axis, which are shorter than the distances D2 and D4 from the first object detection sensor 22 and the second object detection sensor 42 (multiple object detection sensors) to the center C of the sword body 11 at the positive end of the X-axis. Thus, in the imitation sword 10c, the first object detection sensor 22 and the second object detection sensor 42 are located near the outer edge E of the sword body 11 at the positive end of the X-axis. As a result, when the object 100 comes into contact with the imitation sword from the positive direction of the X-axis, both the voltage of the first object detection signal Sig1 and the voltage of the second object detection signal Sig3 become higher than the first predetermined voltage. In this case, the determination device 20 determines that a thrust has occurred with the imitation sword 10e. On the other hand, when the object 100 contacts the imitation sword from a diagonal direction relative to the positive direction of the X-axis, only one of the voltages of the first object detection signal Sig1 and the second object detection signal Sig3 becomes higher than the first predetermined voltage. In this case, the determination device 20 does not determine that a thrust has occurred with the imitation sword 10e. In this way, the imitation sword 10e can more accurately determine a thrust.

[0057] (Modification) The imitation sword 10f according to the modified example will be described below with reference to the drawings. Fig. 11 is a view of the end of the imitation sword 10f on the positive side of the X-axis as viewed in the X-axis direction.

[0058] The imitation sword 10f differs from the imitation sword 10e in that it further includes a third object detection sensor 62. The structure of the third object detection sensor 62 is the same as that of the first object detection sensor 22 and the second object detection sensor 42, so a description thereof will be omitted. The first object detection sensor 22, the second object detection sensor 42, and the third object detection sensor 62 are located at the vertices of an equilateral triangle when viewed in the up-down direction. As a result, the centers of gravity of the first object detection sensor 22, the second object detection sensor 42, and the third object detection sensor 62 coincide with the center C of the end of the cushioning material 12 in the positive direction of the X-axis.

[0059] The determination device 20 determines whether or not the end of the sword main body 11 in the positive direction of the X-axis has come into contact with an object, based on the first object detection signal Sig1 of the first object detection sensor 22, the second object detection signal Sig3 of the second object detection sensor 42, and the third object detection signal Sig4 of the third object detection sensor 62. In other words, the determination device 20 determines whether or not a thrust has been made by the imitation sword 10e, based on the first object detection signal Sig1 of the first object detection sensor 22, the second object detection signal Sig3 of the second object detection sensor 42, and the third object detection signal Sig4 of the third object detection sensor 62.

[0060] Specifically, when the voltage of the first object detection signal Sig1, the voltage of the second object detection signal Sig3, and the voltage of the third object detection signal Sig4 become higher than a first predetermined voltage, the determination device 20 determines that the end of the sword body 11 in the positive direction of the X-axis has come into contact with the object 100. In this case, the determination device 20 determines that a thrust by the imitation sword 10f has occurred.

[0061] On the other hand, when only one or two of the voltages of the first object detection signal Sig1, the second object detection signal Sig3, and the third object detection signal Sig4 are higher than the first predetermined voltage, the determination device 20 determines that the end of the sword body 11 did not contact the object 100 in the positive direction of the X-axis. In addition, when all of the voltages of the first object detection signal Sig1, the second object detection signal Sig3, and the third object detection signal Sig4 are not higher than the first predetermined voltage, the determination device 20 also determines that the end of the sword body 11 did not contact the object 100 in the positive direction of the X-axis. In this case, the determination device 20 determines that no thrust was made by the imitation sword 10f. The other structure of the imitation sword 10f is the same as that of the imitation sword 10e, so a description thereof will be omitted.

[0062] (Other embodiments) The imitation sword according to the present invention is not limited to the imitation swords 10, 10a to 10f, and may be modified within the scope of the invention. Furthermore, the structures of the imitation swords 10, 10a to 10f may be combined in any manner.

[0063] The first object detection sensor 22 may be an illuminance sensor. When the object 100 is located in the positive direction of the X-axis of the sword body 11, the illuminance detected by the illuminance sensor is low. Therefore, the voltage of the first object detection signal Sig1 drops. The determination device 20 detects that the object 100 is located in the positive direction of the X-axis of the sword body 11 by detecting this drop in the voltage of the first object detection signal Sig1. The second object detection sensor 42 may also be an illuminance sensor.

[0064] The first object detection sensor 22 may be an ultrasonic sensor. In this case, each of the first object detection sensors 22 includes an ultrasonic transmitter, an ultrasonic receiver, and a time measurement unit. The ultrasonic transmitter generates ultrasonic waves in the positive direction of the X-axis. The ultrasonic receiver receives ultrasonic waves reflected by the object 100. The time measurement unit measures the time from when the ultrasonic generator generates ultrasonic waves to when the ultrasonic receiver receives ultrasonic waves. Then, the time measurement unit outputs this time as a first object detection signal Sig1. If this time is shorter than a predetermined time, the determination device 20 determines that the object 100 is located in the positive direction of the X-axis of the sword body 11. The second object detection sensor 42 may also be an ultrasonic sensor.

[0065] The first object detection signal Sig1, the second object detection signal Sig3, and the deformation detection signal Sig2 may have a charge or a current instead of a voltage.

[0066] The first object detection sensor 22 and the second object detection sensor 42 may be capacitance sensors.

[0067] In the imitation sword 10a, a value equivalent to the resistance value of the strain gauge may be used instead of the resistance value of the strain gauge. For example, a strain gauge may be incorporated and the resistance value may be converted into a voltage by a Wheatstone bridge. This voltage may be amplified.

[0068] The deformation detection sensor 24 may be an air pressure sensor.

[0069] It should be noted that three or more object detection sensors may be provided.

[0070] It should be noted that the sword body 11 does not necessarily have to include the cushioning material 12.

[0071] The first predetermined voltage may be slightly lower than the voltage of the first object detection signal Sig1 when the object 100 comes into contact with the end of the sword body 11 in the positive direction along the X-axis. This is because the determination device 20 can determine that a thrust by the imitation sword 10 has occurred, even if the object 100 is not in contact with the end of the sword body 11 in the positive direction along the X-axis, as long as the object 100 is located near the end of the sword body 11 in the positive direction along the X-axis and the sword body 11 is deformed.

[0072] In the case of the imitation sword 10, if the determination device 20 determines in step S2 that the object 100 is not located in the positive direction of the X-axis of the sword body 11 based on the first object detection signal Sig1, or if the determination device 20 determines in step S3 that the sword body 11 has not deformed based on the deformation detection signal Sig2, it determines that a thrust by the imitation sword 10 has not occurred. However, the determination device 20 may also make the following determinations (a) and (b). (a) Step S2: Based on the first object detection signal Sig1, the object 100 is located in the positive direction of the X-axis of the sword body 11. Step S3: Based on the deformation detection signal Sig2, the sword body 11 has not been deformed. Result: Insufficient thrust strength (A thrust was made with the pseudo-sword 10, but the thrust strength was weak) (b) Step S2: Based on the first object detection signal Sig1, the object 100 is not located in the positive direction of the X-axis of the sword body 11. Result: No thrust occurred The imitation swords 10e and 10f may be provided with four or more object detection sensors.

[0073] In addition, the imitation swords 10e and 10f may be applied to the imitation sword system 1.

[0074] The present invention has the following structure:

[0075] (1) The sword body extends in the X-axis direction, A grip part connected to the end part of the sword body in the negative direction of the X-axis; A first object detection sensor is provided at an end of the sword body in the positive direction of the X-axis, and outputs a first object detection signal used to determine whether or not an object is located in the positive direction of the X-axis of the sword body. a deformation detection sensor provided on the sword body and outputting a deformation detection signal used to determine whether the sword body has been deformed; Equipped with Pseudo sword. (2) The sword body is A housing extending in the X-axis direction; a cushioning material connected to the housing in the positive direction of the X-axis and more easily deformed than the housing; Contains The imitation sword described in (1). (3) a first recess that is recessed in a negative direction of the X-axis is provided at an end of the buffer material in a positive direction of the X-axis; The first object detection sensor is provided in the first recess. The imitation sword described in (2). (4) the deformation detection sensor is provided on the cushioning material and outputs the deformation detection signal used to determine whether the cushioning material is deformed. An imitation sword as described in (2) or (3). (5) the deformation detection sensor is provided at an end of the housing in a positive direction along the X-axis, The housing has a cavity, The cavity overlaps with the deformation detection sensor when viewed in the X-axis direction. An imitation sword as described in (2) or (3). (6) The imitation sword is: A second object detection sensor is provided at an end of the sword body in the positive direction of the X-axis, and outputs a second object detection signal used to determine whether or not an object is located in the positive direction of the X-axis of the sword body. In addition, a second recess recessed in the negative direction of the X-axis is provided at an end of the buffer material in the positive direction of the X-axis, the second object detection sensor is provided in the second recess, The first recess, the center of the end of the cushioning material in the positive direction of the X-axis, and the second recess are aligned in this order on a first straight line when viewed in the X-axis direction. The imitation sword described in (3). (7) As viewed in the X-axis direction, a distance from the first object detection sensor to an outer edge of an end of the cushioning material in the positive direction of the X-axis is shorter than a distance from the first object detection sensor to a center of the end of the cushioning material in the positive direction of the X-axis, As viewed in the X-axis direction, a distance from the second object detection sensor to an outer edge of the end of the cushioning material in the positive direction of the X-axis is shorter than a distance from the second object detection sensor to a center of the end of the cushioning material in the positive direction of the X-axis. The imitation sword described in (6). (8) The first object detection sensor does not have a moving part. An imitation sword as described in any of (1) to (7). (9) The deformation detection sensor has no moving parts. An imitation sword as described in any of (1) to (8). (10) The imitation sword is: The determination device, In addition, The determination device determines that an object is located in the positive direction of the X-axis of the sword main body based on the first object detection signal, and determines that the sword main body has been deformed based on the deformation detection signal, and then determines that a thrust by the imitation sword has occurred. An imitation sword as described in any of (1) to (9). (11) When the determination device determines based on the first object detection signal that an object is not located in the positive direction of the X-axis of the sword main body, or when the determination device determines based on the deformation detection signal that the sword main body is not deformed, it determines that a thrust by the imitation sword has not occurred. The imitation sword described in (10). (12) The imitation sword according to any one of (1) to (9), A determination device; We are equipped with The determination device determines that an object is located in the positive direction of the X-axis of the sword main body based on the first object detection signal, and determines that the sword main body has been deformed based on the deformation detection signal, and then determines that a thrust by the imitation sword has occurred. Pseudo sword system. (13) When the determination device determines based on the first object detection signal that an object is not located in the positive direction of the X-axis of the sword main body, or when the determination device determines based on the deformation detection signal that the sword main body is not deformed, it determines that a thrust by the imitation sword has not occurred. The pseudo-sword system described in (12). (14) The sword body extends in the X-axis direction, A grip part connected to the end part of the sword body in the negative direction of the X-axis; A plurality of object detection sensors are provided at the end of the sword body in the positive direction of the X-axis, and output object detection signals used to determine whether or not the end of the sword body in the positive direction of the X-axis has come into contact with an object; Equipped with When viewed in the X-axis direction, each distance from the plurality of object detection sensors to the outer edge of the end of the sword body in the positive direction of the X-axis is shorter than the distance from the plurality of object detection sensors to the center of the end of the sword body in the positive direction of the X-axis. Pseudo sword. (15) The center of gravity of the plurality of object detection sensors coincides with the center of the end of the sword body in the positive direction of the X-axis. The imitation sword described in (14). [Explanation of symbols]

[0076] 1: Pseudo Sword System 10, 10a~10f: Imitation swords 11: Sword body 12: Cushioning material 13: Grip section 14: Housing 20: Judgment device 22: First object detection sensor 24: Deformation detection sensor 42: Second object detection sensor 60,204:Communication equipment 62: 3rd object detection sensor 100: Object 200: Processing device 202: Judgment device C: Center E: Outer edge G1: First recess G2: Second recess L1: 1st straight line Sp: hollow

Claims

1. A sword body extending in the X-axis direction; A grip portion connected to the end portion of the sword body in the negative direction of the X-axis; a first object detection sensor provided at an end of the sword body in the positive direction of the X-axis and outputting a first object detection signal used to determine whether or not an object is located in the positive direction of the X-axis of the sword body; a deformation detection sensor provided on the sword body and outputting a deformation detection signal used to determine whether the sword body has been deformed; It is equipped with The sword body is A housing extending in the X-axis direction; a cushioning material connected to the housing in the positive direction of the X-axis and more easily deformed than the housing; Contains Pseudo sword.

2. a first recess that is recessed in a negative direction of the X-axis is provided at an end of the buffer material in a positive direction of the X-axis, The first object detection sensor is provided in the first recess. The imitation sword according to claim 1.

3. the deformation detection sensor is provided on the cushioning material and outputs the deformation detection signal used to determine whether the cushioning material is deformed. The imitation sword according to claim 1 or 2.

4. the deformation detection sensor is provided at an end of the housing in a positive direction along the X-axis, The housing has a cavity, The cavity overlaps with the deformation detection sensor when viewed in the X-axis direction. The imitation sword according to claim 1 or 2.

5. The imitation sword is: a second object detection sensor provided at an end of the sword body in the positive direction of the X-axis and outputting a second object detection signal used to determine whether or not an object is located in the positive direction of the X-axis of the sword body; In addition, a second recess that is recessed in a negative direction of the X-axis is provided at an end of the buffer material in a positive direction of the X-axis, The second object detection sensor is provided in the second recess, the first recess, a center of an end portion of the cushioning material in the positive direction of the X-axis, and the second recess are aligned in this order on a first straight line when viewed in the X-axis direction; The imitation sword according to claim 2.

6. a distance from the first object detection sensor to an outer edge of an end of the cushioning material in the positive direction of the X-axis, as viewed in the X-axis direction, is shorter than a distance from the first object detection sensor to a center of the end of the cushioning material in the positive direction of the X-axis, When viewed in the X-axis direction, a distance from the second object detection sensor to an outer edge of the end of the cushioning material in the positive direction of the X-axis is shorter than a distance from the second object detection sensor to a center of the end of the cushioning material in the positive direction of the X-axis. The imitation sword according to claim 5.

7. The first object detection sensor does not have a moving part. The imitation sword according to claim 1 or 2.

8. The deformation detection sensor has no moving parts. The imitation sword according to claim 1 or 2.

9. The imitation sword is: The determination device, In addition, The determination device determines that an object is located in the positive direction of the X-axis of the sword main body based on the first object detection signal, and determines that a thrust by the imitation sword has occurred when the determination device determines that the sword main body has been deformed based on the deformation detection signal. The imitation sword according to claim 1 or 2.

10. When the determination device determines based on the first object detection signal that an object is not located in the positive direction of the X-axis of the sword main body, or when the determination device determines based on the deformation detection signal that the sword main body is not deformed, the determination device determines that a thrust by the imitation sword has not occurred. The imitation sword according to claim 9.

11. The imitation sword according to claim 1 or 2, A determination device; We are equipped with The determination device determines that an object is located in the positive direction of the X-axis of the sword main body based on the first object detection signal, and determines that a thrust by the imitation sword has occurred when the determination device determines that the sword main body has been deformed based on the deformation detection signal. Pseudo sword system.

12. When the determination device determines based on the first object detection signal that an object is not located in the positive direction of the X-axis of the sword main body, or when the determination device determines based on the deformation detection signal that the sword main body is not deformed, the determination device determines that a thrust by the imitation sword has not occurred. The simulated sword system according to claim 11.

13. A sword body extending in the X-axis direction; A grip portion connected to the end portion of the sword body in the negative direction of the X-axis; A plurality of object detection sensors are provided at the end of the sword body in the positive direction of the X-axis, and output object detection signals used to determine whether or not the end of the sword body in the positive direction of the X-axis has come into contact with an object; It is equipped with When viewed in the X-axis direction, each of the distances from the plurality of object detection sensors to the outer edge of the end of the sword body in the positive direction of the X-axis is shorter than the distance from the plurality of object detection sensors to the center of the end of the sword body in the positive direction of the X-axis. Pseudo sword.

14. The center of gravity of the plurality of object detection sensors coincides with the center of the end of the sword body in the positive direction of the X-axis. The imitation sword according to claim 13.

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