Catcher

Abstract

To provide a capturing tool capable of invalidating and capturing a weapon such as a cutting tool held by a capturing object person.SOLUTION: Magnet parts 16 are respectively provided at the end parts of the branch parts 12 of the two pronged fork 1. Each magnet part 16 is provided with a plurality of unit magnets, and the adjacent unit magnets are arranged so that the same poles face each other. With such an arrangement, a strong magnetic force is generated from between the unit magnets in which the same poles face each other to the periphery. The magnet part 16 has a plurality of parts where the strong magnetic force is generated, and magnetically attracts the weapon held by the person to be captured at one or a plurality of parts. If the person to be captured attracts the weapon with a force stronger than the force with which the person to be captured holds the weapon, the weapon can be nullified and captured, and the person to be captured can be easily captured.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a trapping device used to capture a target. [Background technology]

[0002] Various tools have been used since ancient times to capture people. In particular, the sarimata (sashimata) is used by the police and is widely available as a crime prevention item. Police and security companies also use police sticks and batons.

[0003] Many crimes involve knives being used as weapons by the targets of capture. If the target of capture can be secured, it is relatively easy to capture the target of capture. However, even with the use of a traditional sarimata, it is possible to restrict the target's movements, but it is not possible to safely retrieve the brandished knife. Furthermore, with traditional police staves and batons, it is possible to knock the knife down, but it is not possible to retrieve it, which can lead to the target of capture picking it up again and causing further violence.

[0004] In response to this situation, for example, Patent Document 1 proposes that a permanent magnet or electromagnet be fitted to the opposing inner surfaces of the two forked arms of a fork to attract blades and other objects. However, the permanent magnets used are rod- or plate-shaped magnets fitted into a frame with a U-shaped cross section. It is estimated that the magnetic flux density at the attraction surface of such magnets is approximately 0.1 to 0.2 T (tesla) (1 T = 10,000 G (gauss)). Even in examples using electromagnets, the electromagnets are only intermittently positioned and do not generate a significant magnetic force. Therefore, even if a target possessing a blade or other object is attracted to the magnet, although the target may be surprised, they will not be able to resist the target's grip and seize the blade. Furthermore, the target can easily rip the blade or other object from the fork and swing it around again. Furthermore, because the magnetic force is only generated on the inner surface of the fork, and only this magnetic force is used, the area that can attract blades and other objects is limited, and it is estimated that there are many cases where the target is unable to attract the blade or other object. Considering these points, it is thought that even if the sagami described in Patent Document 1 is used, it would be difficult to take away any bladed or other weapon that the target is carrying.

[0005] In Patent Document 2, a magnet is attached to the outer periphery of the end of a police stick, and it is thought that this magnet will attract a bladed object or other object held by a target. In Patent Document 2, magnets are attached in four directions on the outer periphery, so magnetic force is generated in all directions of the police stick, making it possible to attract a bladed object or other object from any direction. However, even in this example, only one of the magnetic poles of the magnet is used on the attracting surface, so only a weak magnetic force can be obtained. Therefore, as described in Patent Document 2, the bladed object or other object is only knocked out of the target's hand and then attracted and retrieved by the magnet. Therefore, even the police stick in Patent Document 2 is not capable of seizing a bladed object or other object held by a target. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-071446 [Patent Document 2] Japanese Utility Model Application Publication No. 07-012796 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a capture device that can neutralize and seize a weapon, such as a blade, held by a person to be captured. [Means for solving the problem]

[0008] The invention described in claim 1 of the present application is a capturing device characterized by having multiple magnets inside near the end that faces the object to be captured, and by arranging adjacent magnets so that the same poles face each other.

[0009] The invention described in claim 2 of the present application is a capturing device having a branched portion at the end facing the person to be captured, which is branched into two, and a rod-shaped holding portion that continues from the branched portion, and is characterized in that multiple magnets are provided inside each of the branches of the branched portion, and the magnets are arranged so that the same poles face each other when they are adjacent to each other.

[0010] The invention described in claim 3 of the present application is a catcher characterized in that the part including the plurality of magnets in the invention described in claim 1 or claim 2 of the present application is configured to be separable.

[0011] The invention described in claim 4 of the present application is a catcher according to the invention described in claim 3 of the present application, characterized in that the separable part and the main body are connected by a connecting member.

[0012] The invention described in claim 5 of the present application is a catcher characterized in that, in the invention described in claim 3 of the present application, the detachable part is provided with a protective jig having at least one surface formed to be approximately flat. [Effects of the Invention]

[0013] According to the present invention, a strong magnetic force can be used to neutralize and seize weapons such as knives, making it easier to capture the target. Furthermore, by configuring it to be detachable, it is possible to deprive the target of its freedom as a weapon and create an opening for the target to be captured, making it easier to capture the target. If it is configured to be detachable, there is a possibility that the target may throw the weapon, so safety can be ensured by connecting it with a locking member or providing a protective jig. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a plan view showing a first embodiment of the present invention. [Figure 2] 2 is a cross-sectional view showing an example of a magnet section in the first embodiment of the present invention. FIG. [Figure 3] 5 is an explanatory diagram of an experimental example regarding the attractive force of the magnet portion in the first embodiment of the present invention. FIG. [Figure 4] FIG. 2 is an explanatory diagram of an example of a method for snatching a weapon in the first embodiment of the present invention. [Figure 5] FIG. 10 is a plan view showing a second embodiment of the present invention. [Figure 6] FIG. 10 is a plan view showing a modified example of the second embodiment of the present invention. [Figure 7] FIG. 10 is a plan view showing another modified example of the second embodiment of the present invention. [Figure 8] FIG. 10 is an explanatory diagram of an example of a protective jig. DETAILED DESCRIPTION OF THE INVENTION

[0015] FIG. 1 is a plan view showing a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing an example of a magnet unit. In the figure, 1 denotes a fork, 11 denotes a holding unit, 12 denotes a branching unit, 13 denotes a base, 14 denotes an arm, 15 denotes an attachment unit, 16 denotes a magnet unit, 21 denotes a unit magnet, 22 denotes a sheath tube, and 23 denotes a spacer. This first embodiment shows an example of a fork, which is one type of catching tool. The fork 1 shown in FIG. 1 generally has a fork 12 with a bifurcated end facing the target, and a rod-shaped holding unit 11 connected to the fork 12. The holding unit 11 is the part that the user grips the fork 1 and is long enough to maintain a sufficient distance from the target. The holding unit 11 may be extendable or divisible for easy transport and storage.

[0016] Branching portion 12 is fixed to the end of holding portion 11 approximately at the center of bottom portion 13. Arm portions 14 are provided on both ends of bottom portion 13, and extend so that the distance between them gradually increases in the direction of extension from the tip of holding portion 11. Mounting portions 15 are provided on the end of each arm portion 14, and magnet portions 16 are provided on each mounting portion 15. These magnet portions 16 are provided in approximately the same direction as the extension direction of arm portions 14.

[0017] As shown in the cross-sectional view of an example in FIG. 2, each magnet section 16 includes multiple unit magnets 21 arranged in the extension direction of the magnet section 16 and housed within a sleeve tube 22. Each unit magnet 21 is arranged with a spacer 23 sandwiched between them so that the same pole faces the adjacent unit magnet 21. That is, the north pole face of one unit magnet 21 faces the north pole face of the adjacent unit magnet 21, and the south pole face faces the south pole face of the adjacent unit magnet 21 on the opposite side. Generally, magnetic field lines act from one pole to the other, so when the north and south poles face each other, a magnetic force acts between the two poles. However, when the same poles face each other, as shown in FIG. 2, the magnetic field lines face outward, and the magnetic force is strongest around the gaps between adjacent unit magnets 21. Furthermore, because the magnetic field lines are concentrated in the narrow space between adjacent unit magnets 21, the magnetic flux density, which indicates the number of magnetic field lines per unit area, is significantly increased. In Figure 2, the difference in the magnitude of the magnetic flux density in the upward direction is visually indicated by the difference in the length of the arrows. In this way, when the same poles of each unit magnet 21 are arranged facing each other, the magnetic force in the surrounding area can be strengthened.

[0018] However, as can be seen from Figure 2, the magnetic force is stronger around the gaps between adjacent unit magnets 21, and the attraction area is small, so for example, almost no magnetic force is generated around the center of a unit magnet 21. Even so, as will be described later, the strong magnetic force generated around the gaps between adjacent unit magnets 21 is sufficient to seize a weapon such as a knife held by a person to be captured. Furthermore, because multiple unit magnets 21 are housed, a strong magnetic force is generated at intervals approximately the width of a unit magnet 21. Therefore, considering the size of the weapon, it is possible to magnetically attract the weapon at multiple points, and the attraction force is extremely strong.

[0019] The fact that magnetic flux density can be increased by facing the same poles as described above has long been known, and the inventor has also used it in a completely different field, such as iron removal devices. Since the inclusion of conductive magnetic metals in insulating materials is functionally unacceptable, iron removal devices were developed with the aim of increasing magnetic flux density and removing smaller metal particles. For this reason, they were developed with the assumption that they would attract magnetic objects smaller than the magnetic pole spacing between the opposing poles. Therefore, until now, it had never been considered possible to use them to steal weapons, such as knives, that are larger than the magnetic pole spacing between the same poles.

[0020] Furthermore, when the same poles of the unit magnets 21 are placed opposite each other, the magnetic flux density increases over the entire circumference of the gap. In other words, the magnet portion 16 can capture a weapon such as a knife whether it is inside or outside the fork 1. For example, while Patent Document 1 only allows for attraction on the inside, this embodiment allows for attraction over the entire circumference. Another advantage is that a weapon such as a knife can be attracted, neutralized, or seized from any direction without having to place magnets on all four sides as in Patent Document 2.

[0021] Figure 3 is an explanatory diagram of an experimental example regarding the attractive force of the magnet part 16 in the first embodiment of the present invention. In the figure, 31 is a kitchen knife. If, for example, a kitchen knife 31 serving as a murder weapon is captured using the magnet part 16 as shown in Figure 2, the person to be captured who is carrying the knife 31 will try to pull the knife 31 away from the magnet part 16 in order to retrieve it. An experiment was conducted to measure the force exerted at this time.

[0022] As shown in FIG. 3(A), consider a cylindrical coordinate system in which the direction of extension of magnet portion 16 is the x-axis, the direction away from the central axis of magnet portion 16 is the y-axis, and the θ-axis is the circumferential direction of magnet portion 16. In this case, knife 31 attracted to magnet portion 16 can easily move in the θ-axis direction, i.e., the direction rotating along the periphery of magnet portion 16, but this movement does not separate knife 31 from magnet portion 16. Furthermore, a very strong magnetic attraction force acts in the y-axis direction, i.e., the direction away from magnet portion 16, making it very difficult to separate knife 31 from magnet portion 16. However, knife 31 can be separated from magnet portion 16 with less force in the x-axis direction than in the y-axis direction. Therefore, if the target person attempts to recapture knife 31 attracted to magnet portion 16, they will likely pull knife 31 in the x-axis direction. Therefore, as shown in FIG. 3(B), the force required to pull the kitchen knife 31 attracted to the magnet part 16 in the x direction and separate it from the magnet part 16 was measured.

[0023] The knife 31 used was a commercially available stainless steel knife with a blade length of 165 mm and made of SUS430 martensitic stainless steel. The magnetic pole spacing of the magnet portion 16 was 18 mm (the length of the unit magnets 21 plus the thickness of the spacer 23). The magnetic flux density (peak value) on the surface of the sleeve tube 22 between adjacent unit magnets 21 was approximately 0.8 T (= 8,000 G (gauss)). The length of the magnet portion 16 was 250 mm. When such a magnet portion 16 is attached to steel or other materials, it is difficult for the average person to remove it. The adhesive force is particularly strong, so much so that there have been cases of finger fractures when fingers are trapped between the magnet portion 16 and the steel. The force when the knife 31 attached to such a magnet portion 16 was pulled in the x-axis direction was measured using a spring gauge. As mentioned above, the areas with high magnetic flux density are mostly between adjacent unit magnets 21 and on the end faces of the unit magnets 21 at both ends. Therefore, these areas with high magnetic flux density are called poles, and the number of poles attached to a magnet is counted as 1 pole, 2 poles, 3 poles, etc.

[0024] As a result of the experiment, when the knife 31 was attached to three poles (attached length of approximately 6 cm or more), the pulling force was approximately 5 kg. When the knife 31 was attached to four poles (attached length of approximately 7 cm or more), the pulling force was approximately 7 kg. When the knife 31 was attached to seven poles (attached length of approximately 13 cm or more), the pulling force was approximately 15 kg or more.

[0025] On the other hand, when the knife was gripped, the resistance to the force exerted when pulling it out was measured with a spring gauge and was found to be about 5 kg. Normally, a person pointing a knife 31 at a target does not grip the knife 31 tightly, but maintains a state in which they can move their wrist, like when gripping a golf club, in order to respond to the actions of the user of the tool or their own next action. In this case, the resistance exerted by the grip strength against the pulling force when the target held the knife 31 was about 3 to 5 kg, which was a similar result.

[0026] From these experimental results, it was found that in order to snatch (pull out) the knife 31 from the grasp of the target person, the knife 31 needs to be attracted to at least three poles (approximately 6 cm) of the magnet part 16. It was not possible for a single adult to pull the knife 31 away from the magnet part 16 in the y-axis direction.

[0027] The knife 31 used in this experiment was made of SUS430 martensitic material, which has a low magnetic attraction, but if it were made of, for example, sharp carbon steel, the attraction between the magnet part 16 and the knife 31 would be even greater. Therefore, it would be possible to seize the knife 31 by attraction with two or one pole.

[0028] Furthermore, as in the above experiment, the resistance force of the magnet portion 16 against the force to pull away the knife 31 is determined by the magnitude of the magnetic flux density and the number of poles with which the knife 31 comes into contact. For magnets of the same diameter and material, the value of magnetic flux density depends on the volume of the magnet between the poles. Therefore, increasing the length of the unit magnets 21 increases the magnetic flux density but reduces the number of poles. Conversely, shortening the length of the unit magnets 21 decreases the magnetic flux density, but shortens the magnetic pole spacing, allowing for a greater number of poles to capture the knife 31. Furthermore, increasing the thickness (cross-sectional area) of the unit magnets 21 increases the magnetic flux density and increases the magnetic force, making it possible to capture the knife 31 with a smaller number of poles. The type of unit magnets 21 used to configure the magnet portion 16 can be determined at the design stage. However, to seize the knife 31 from the target's grip, the magnet portion 16 should be designed to have a pulling resistance of 5 kg or more due to the attraction. The length of the magnet portion 16 is limited to the length required for the branch portion 12 to hold down the target.

[0029] 4 is an explanatory diagram of an example of a method for snatching a weapon in the first embodiment of the present invention. The user grasps the holding part 11 of the sashimata 1 and points the branch part 12 toward a target person holding a weapon such as a kitchen knife 31. Normally, when the sashimata 1 is thrust toward a target person holding a kitchen knife 31, the target person will try to swat the sashimata 1 with the kitchen knife 31 they are holding. The branch part 12 is provided with a magnet part 16, and the target person will particularly try to swat the magnet part 16 with the kitchen knife 31.

[0030] The magnetic flux density of magnet portion 16 rapidly decreases to about 10% when it is about 10 mm away. For this reason, the knife 31 is not affected by the magnetic force until just before it comes into contact with magnet portion 16, but a sudden magnetic force is exerted only when magnet portion 16 and knife 31 come into contact. For this reason, it is difficult for the target person to notice that there is a powerful magnet in the fork 1, and the moment it comes into contact with magnet portion 16, the impact of the knife 31 being attracted to it is enough to surprise the target person with the strong magnetic force of magnet portion 16, and in experiments it was confirmed that the target person hastily let go of the knife 31.

[0031] To seize the murder weapon, knife 31, the knife is brought into contact with magnet part 16 of fork 1 as shown in Figure 4(A) to be magnetically attracted, and then, as shown in Figure 4(B), branch part 12 of fork 1 is rotated so that the extension direction of magnet part 16 is parallel to the length direction of knife 31. This increases the contact area between magnet part 16 and knife 31, and increases the number of poles that attract knife 31 to magnet part 16, increasing the attraction force between magnet part 16 and knife 31, making it difficult to separate them.

[0032] The position where the knife 31 first comes into contact with the magnet part 16 may be anywhere, for example, inside or outside, or above or below the branch part 12. As explained in Figure 3, the knife 31 can easily rotate in the circumferential direction (θ direction) of the magnet part 16, so when the fork 1 is rotated, the attraction position of the knife 31 can also be moved in the circumferential direction (θ direction) of the magnet part 16, thereby increasing the contact area.

[0033] Once the knife 31 is stuck to the sashimi 1, the person to be captured cannot use the knife 31 as a weapon, and the weapon can be rendered ineffective. In many cases, the person to be captured will try to pull the knife 31 away from the sashimi 1 and reclaim it. However, it is not easy to pull the knife 31 away, which gives the capturer time to maneuver. In addition, since the person to be captured cannot use the knife 31 to intimidate or kill, it is possible to capture the person to be captured during that time. Alternatively, if the sashimi 1 is pushed in at the same time as the person to be captured tries to pull the knife 31 away from the sashimi 1, the person to be captured can be pressed against a wall or floor with the sashimi 1, thereby depriving them of their freedom.

[0034] If the person to be captured gives up on retrieving the knife 31 that has been attracted to the sashimata 1 or lets go of the knife 31, the knife 31 can be seized by pulling the sashimata 1 towards the person to be captured. Of course, if the user of the sashimata 1 is stronger, it is possible to pull the knife 31 out of the person to be captured and seize it even if the person is holding the knife 31.

[0035] Here, the experiment was conducted using a kitchen knife 31 as an example, but other weapons made of magnetic material such as metal can be attracted to and seized by the magnet part 16. Of course, it goes without saying that the function of the fork 1, that is, the function of holding down and capturing the target with the branch part 12, is still retained.

[0036] 1 is one example, and various modifications are possible. For example, the cross section in the direction perpendicular to the extension direction of the magnet part 16 is not limited to a circle, but may be various shapes such as an oval or a square. In the case of a shape with a flat surface such as a square, if the weapon has a surface such as a kitchen knife, there is a direction for contact, so it is necessary to devise a way to indicate the direction in the cross-sectional shape of the holding part 11, but because it is magnetically attracted between surfaces, a greater attraction force can be obtained.

[0037] Furthermore, for example, the arm portion 14 may not be provided on the branch portion 12, but an attachment portion 15 may be provided on the bottom 13 to which the magnet portion 16 is attached. Alternatively, the magnet portion 16 may also be provided on the bottom 13 of the branch portion 12. The shape of the branch portion 12 is not limited to the shape shown in Fig. 1, and it can be configured in various shapes, such as a V-shape, a U-shape, or a C-shape, as long as the function of the fork 1 to capture the target is not impaired.

[0038] FIG. 5 is a plan view showing a second embodiment of the present invention. In the figure, 2 denotes a police stick, and as in FIG. 1, 11 denotes a holding part and 16 denotes a magnet part. This second embodiment shows an example of a police stick, which is one type of arresting tool. The police stick 2 shown in FIG. 5 is generally provided with a magnet part 16 near the end that faces the person to be captured, and has a rod-shaped holding part 11 that is held by the user following the magnet part 16. Overall, it has the same size and appearance as a walking stick or a wooden sword. This holding part 11 may also be configured to be extendable or divisible for easy transport and storage.

[0039] An example of magnet section 16 is shown in cross section in Figure 2, with multiple unit magnets 21 lined up in the extension direction of magnet section 16 and housed within sheath tube 22. Each unit magnet 21 is arranged with a spacer 23 sandwiched between them so that the same pole of the adjacent unit magnet 21 faces the same pole. By facing the same poles of each unit magnet 21 in this way, the magnetic flux density around the facing same poles can be increased, thereby strengthening the magnetic force. Note that the length, cross-sectional area, etc. of unit magnets 21 in magnet section 16 can be determined appropriately at the time of design, and it is desirable to obtain an attractive force exceeding 5 kg, which is the force with which a target person grips a kitchen knife, as in the experimental example of the first embodiment.

[0040] In Patent Document 2, the magnetic force is weak, making it impossible to seize the weapon until it has been knocked off the ground. However, with the police stick 2 of the present invention, it is possible to neutralize or seize the weapon even if the target is holding a knife. Furthermore, in this example, magnetic force is generated around the entire periphery of the magnet portion 16 near the end of the unit magnet 21, making it possible to attract and seize a weapon such as a knife from any direction, even without magnets being placed on all four sides as in Patent Document 2. Furthermore, Patent Document 2 describes that the magnetic flux generated on the outer periphery acts over a relatively long distance, providing an attractive force, which is considered to be a design concept that aims to attract magnetic objects as far away as possible. In contrast, the design concept of the present invention differs from that of the police stick described in Patent Document 2 in that a strong magnetic attractive force is only generated when a magnetic object approaches the magnet portion 16 and is about to come into contact with it, as described in the first embodiment.

[0041] In this example, the cross section of the magnet portion 16 in the direction perpendicular to the extending direction is not limited to a circle, but may be various shapes such as an oval or a square. In a shape with a flat surface such as a square, if the murder weapon has surfaces such as a kitchen knife, the surface will be magnetically attracted to the surface, and a greater attraction force can be obtained.

[0042] The method for seizing a weapon using the police stick 2 is the same as that for the fork 1 shown in Figure 4. After pointing the magnet part 16 at the person to be captured and bringing the weapon into contact with the magnet part 16 to magnetically attract it, the police stick 22 is rotated so that the extension direction of the magnet part 16 is parallel to the length direction of the weapon. This makes it possible to firmly magnetically attract the weapon to the magnet part 16. This makes it impossible for the person to pull the weapon away from the police stick 2, making it possible to neutralize and seize the weapon. Then, with the weapon neutralized or the person who has lost the weapon can be easily captured.

[0043] Figure 6 is a plan view showing a modified version of the second embodiment of the present invention. In the figure, the same parts as in Figure 5 are given the same reference numerals, with 41 being a detachable part and 42 being a wire. In this modified version of the second embodiment, in the police stick 2 shown in Figure 5, the magnet part 16 near the end where multiple magnets are provided is configured to be separable from the holding part 11 at the detachable part 41. Figure 6(A) shows the magnet part 16 attached, and Figure 6(B) shows the magnet part 16 detached.

[0044] The configuration of the detachable part 41 is arbitrary, but a magnet can be used, for example. By magnetically attracting the magnets with different magnetic poles facing each other, the magnet part 16 can remain attached to the holding part 11. If the target person performs an action such as pulling on the police stick 2 while a weapon or the like held by the target person is magnetically attracted to the magnet part 16, the magnet part 16 will be detached from the holding part 11 while still magnetically attracted to the weapon or the like. If the weapon is magnetically attracted to the magnet part 16, the target person who is carrying the weapon will attempt to reclaim it. This action of retrieving the weapon will cause the magnet part 16 to be detached from the holding part 11.

[0045] If the magnet portion 16 is separated from the murder weapon, for example, if the murder weapon is a blade, the magnet portion 16 magnetically attracts the murder weapon, making it difficult to use as a blade and neutralizing its role as a murder weapon. Furthermore, attempting to separate the magnet portion 16 from the murder weapon could result in the victim being injured by the murder weapon. The act of separating the magnet portion 16 from the murder weapon may draw the victim's attention, creating an opening for the victim to capture, making the murder weapon easier to capture. Furthermore, magnetic attraction of the magnet portion 16, which has a certain weight, to the murder weapon significantly increases the weight of the murder weapon held by the victim. For example, if the murder weapon is a kitchen knife weighing approximately 100g to 150g and the magnet portion 16 weighs approximately 600g to 1kg, the magnet portion 16 will magnetically attract the approximately 100g to 150g kitchen knife held by the victim, suddenly increasing its weight to approximately 700g to 1150g. Therefore, the victim may be surprised by the change in weight, creating an opening for attack, and the weight makes it difficult to swing the weapon around, depriving the victim of its freedom as a weapon. Furthermore, it also increases the likelihood that the victim will let go of the weapon, making it easier to capture. For the user of the police stick 2, when the magnet part 16 is magnetically attracted to the weapon and separated from the holding part 11, the police stick 2 becomes lighter, taking on the weight of the holding part 11. This makes it possible to easily handle the holding part 11 like a bamboo sword, making it easier to confront the target.

[0046] If the magnet part 16 is magnetically attracted to the murder weapon and separated from the holding part 11, its function as a murder weapon is limited as described above, making it difficult to use. However, if the person to be captured were to let go of the murder weapon in such a situation, there is a possibility that they might throw it at the user of the police stick 2 or another capturer. Since the murder weapon has weight when the magnet part 16 is magnetically attracted to it, there is a possibility that it could cause injury if it hits them. Furthermore, if the murder weapon is a kitchen knife, for example, the blade of the knife may protrude beyond the magnet part 16, and there is a possibility that it could cause injury if thrown.

[0047] For this reason, in this modified example, a metal wire 42 is used as the fastening member, and this wire 42 connects the holding part 11 and the magnet part 16. If the length of this wire 42 is adjusted, even if a weapon magnetically attracted to the magnet part 16 is thrown at the user, the wire 42 will prevent it from reaching the user. For example, if the length of the police stick 2 is about 1.5 to 1.8 m and the length of the wire 42 is set to about 1 m, even if a weapon magnetically attracted to the magnet part 16 is thrown at the user, the weapon will not reach the user, and the user will be able to seize the weapon without being injured.

[0048] Furthermore, if the person to be captured is still holding the murder weapon while the magnet part 16 is magnetically attracted to the murder weapon, various uses are possible, such as moving the holding part 11 while keeping the wire 42 taut to move the arm of the person to be captured in the direction of movement of the holding part 11, thereby letting the person to be captured know that the murder weapon is out of their reach, or even restraining the arm of the person to be captured with the wire 42. Of course, even if the murder weapon that is still magnetically attracted to the magnet part 16 is thrust towards the user, it will only reach the length of the wire 42, and the tip of the holding part 11 can also be thrust towards the person to be captured, so the safety of the user is protected.

[0049] While wire 42 is shown here as an example of a fastening member, other materials such as fishing line or a thin chain may also be used, and various fastening members may be used to connect magnet unit 16 and holder 11. Preferably, the fastening member should be one that is not easily cut. In the illustrated example, wire 42 is exposed to the outside when magnet unit 16 is attached, but it may also be configured to be housed within holder 11, for example. Of course, a configuration without using a fastening member is also possible.

[0050] Also, while the magnet portion 16 has been described here as being detachable from the holding portion 11, it may be configured so that, for example, part of the holding portion 11 is also detached, or part of the magnet portion 16 remains with the holding portion 11. As for the detachable portion 41 that detaches the detachable portion from the remaining portion, a magnet is used as an example, but it is also conceivable that it could be configured to be detached using a hand switch, for example, and the switch could be operated when the weapon has been magnetically attracted to the magnet portion 16, thereby detaching the magnet portion 16. Of course, it goes without saying that the detachable portion 41 may be configured using other well-known means.

[0051] Fig. 7 is a plan view showing another modified example of the second embodiment of the present invention, and Fig. 8 is an explanatory diagram of an example of a protective jig. In the figures, the same parts as in Figs. 5 and 6 are designated by the same reference numerals, with 51 being the protective jig, 52 being the flat portion, and 53 being the insertion hole. In this modified example, the magnet portion 16 is also configured to be separable at the detachable portion 41.

[0052] As described above, if the murder weapon is separated from the holding part 11 while the magnet part 16 is magnetically attracted to it, the person to be captured may realize that it has lost its function as a murder weapon and may throw the murder weapon magnetically attracted to the magnet part 16 into the surrounding area. For example, if the murder weapon is a kitchen knife, simply having the magnet part 16 magnetically attracted to the knife will leave the blade exposed, and if the weapon is thrown, the person may be injured by the blade. In this modified example, a protective jig 51 is provided to reduce the risk of injury if the murder weapon is thrown.

[0053] The protective jig 51 is made of a material that will not injure a person even if it comes into contact with the material, such as hard (high-density) polystyrene foam. As shown in Fig. 8(A) as an example, the protective jig 51 has a length corresponding to the magnet part 16, and an insertion hole 53 into which the magnet part 16 is inserted.

[0054] Furthermore, the protective jig 51 has at least one surface (two surfaces in this example) formed as a substantially flat surface, which is a flat portion 52. The shape of the protective jig 51 here is a rectangular parallelepiped with two flat surfaces 52, but is not limited to this and may have various other shapes, such as a cylindrical shape with flat surfaces 52 or a triangular prism shape.

[0055] As described above, the protective jig 51 is formed of a non-magnetic material such as hard (high-density) polystyrene foam, and the magnetic force of the magnet portion 16 inserted into the insertion hole 53 passes through the protective jig 51 and is generated externally. The magnetic force of the magnet portion 16 weakens the longer the distance from the magnet portion 16. However, by arranging the flat portion 52 of the protective jig 51 so that the distance between the flat portion 52 and the insertion hole 53 is as narrow as possible, the magnetic force of the magnet portion 16 inserted into the insertion hole 53 is minimized even on the surface of the flat portion 52. This allows the flat portion 52 to magnetically attract a weapon such as a kitchen knife. The distance between the flat portion 52 of the protective jig 51 and the insertion hole 53 can be determined at the time of design, taking into account the strength and magnetic force of the protective jig 51.

[0056] 8(B), for example, when a kitchen knife is magnetically attracted, it is advisable to make the width of the flat portion 52 sufficient so that the blade is contained within the plane of the flat portion 52 and is not exposed as much as possible. This makes it possible to minimize injury to the user and people around by the blade of the knife even if the kitchen knife magnetically attracted to the magnet portion 16 and protective jig 51 is thrown. Furthermore, it is possible to reduce the risk of injury to people involved, including the target person and the user, from the time the magnet portion 16 and protective jig 51 are magnetically attracted to a weapon such as a kitchen knife until the target person is captured.

[0057] As in the modified example shown in Fig. 6, a protective jig 51 may be used together with the wire 42. The configuration in which the magnet part 16 is separable by the detachable part 41 described in the modified example above may also be applied to the above-mentioned forklift, for example. In the example shown in Fig. 1, the attachment part 15 may be configured as the detachable part 41, and the magnet part 16 may be configured to be separable. After both magnet parts 16 are separated, the arm part 14 can be used as a normal forklift.

[0058] The above examples of a saber and a police staff are shown as embodiments of the present invention. In this invention, a magnetic weapon such as a kitchen knife held by a person to be captured is magnetically attracted by a strong magnetic force, thereby disabling and seizing the weapon. The present invention can be applied to various arresting tools that require such a function. For example, the present invention can be implemented by providing a magnetic part inside various arresting tools, such as spears, long swords, swords including sabres, batons, and truncheons, near the end that faces the person to be captured. [Explanation of symbols]

[0059] 1...fork, 2...police stick, 11...holding portion, 12...branching portion, 13...bottom, 14...arm portion, 15...mounting portion, 16...magnet portion, 21...unit magnet, 22...sheath tube, 23...spacer, 31...knife, 41...detachable portion, 42...wire, 51...protective jig, 52...flat portion, 53...insertion hole.

Claims

1. A capturing device characterized in that a plurality of magnets are provided inside near the end that faces the object to be captured, and adjacent magnets are arranged so that the same poles face each other.

2. A capturing device having a branched portion at the end facing the person to be captured, which is branched into two, and a rod-shaped holding portion that continues from the branched portion, characterized in that multiple magnets are provided inside each of the branches of the branched portion, and the magnets are arranged so that the same poles face each other when they are adjacent to each other.

3. 3. The catcher according to claim 1, wherein the portion including the plurality of magnets is configured to be separable.

4. 4. The catcher according to claim 3, wherein the separable portion and the main body are connected by a fastening member.

5. 4. The catcher according to claim 3, wherein the separable portion is provided with a protective jig having at least one surface formed to be substantially flat.

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