JP6997446B2 - Fishing gear - Google Patents

Description

The present invention relates to a fishing gear having a rod and a reel.

Generally, when fishing a fish, a fishing tackle having a rod that is a fishing rod and a reel that winds up and sends out the fishing line is used, and the fishing line extending from the reel is used as a guide (opening member) for the rod. It is guided through and the fishing line can be operated by the movement of the rod.

In addition, as one of the fishing methods using fishing gear with a rod and reel, there is a tow rope fishing in which the artificial bait attached to the fishing line is thrown into the sea and the artificial bait is pulled while running the ship, tuna, bonito, and sawara. It is often used when fishing relatively large fish such as. In such tow rope fishing, in addition to the movement of the ship, it is known how to invite the fish to bite by moving the fishing line with a rod and performing a squirming motion that gives the artificial bait in the sea a movement like a small fish. Has been done. Since a large force is required for the squeezing operation due to the resistance of water or the like, it is generally practiced to drive the rod by a driving device having a motor to perform the squeezing operation.

When the squeezing operation is performed by the drive device as described above, it is necessary to visually check the bending of the rod to determine that the fish has eaten (in the following, it may be simply a hit). It was difficult to judge because the bending of the rod changes depending on the type of fish, the flow of the tide, and the condition of the wind. Therefore, a fishing tackle as shown in Patent Document 1 has been developed.

The fishing line shown in Patent Document 1 is a fishing line composed of an optical fiber, a fishing hook attached to the tip of the fishing line, a strain detector provided on the fishing hook, and whether the fish was eaten by the optical strain signal of the strain detector. A control device for determining whether or not to use is provided, and the strain detector is connected to the control device via a fishing line. When the hook is distorted, the strain detector detects the distortion, the strain detector sends an optical distortion signal to the control device through the fishing hook, and the control device has the magnitude of the optical distortion signal equal to or larger than a predetermined value. In the case of, it is possible to judge the hit of the fish. Further, if such a fishing tackle is used, when the hit of the fish is determined, the hit of the fish is notified by a well-known notification means, or an operation signal is transmitted to the drive device to operate the rod or reel in the fishing direction. Is possible.

Japanese Unexamined Patent Publication No. 63-309125 (Page 2, Fig. 1)

However, in the fishing tackle of Patent Document 1, it is necessary to configure an electric circuit with a strain detector, an optical fiber, a control device, a notification means, etc. in order to notify the hit of a fish, and the number of parts is also large. , There was a problem that it became a complicated structure. In addition, since a part of the electric circuit is used underwater, there is a risk of failure due to impact or submersion.

The present invention has been made focusing on such a problem, and an object of the present invention is to provide a fishing tackle capable of notifying the hit of a fish with a simple configuration.

In order to solve the above problems, the fishing gear of the present invention is used.
In fishing gear with rods and reels
It has an opening member having an opening for guiding a fishing line extending from the reel, and the opening member and the tip of the rod are connected by two connecting members.
One of the connecting members is separated from the opening member and the tip of the rod by a force equal to or higher than a predetermined value.
When one of the connecting members is separated, the other connecting member is in a connected state between the opening member and the tip of the rod.
According to this feature, when the fish eats the bait, the fishing line is pulled away from the rod by a force equal to or higher than a predetermined value, so that one connecting member is separated and the other connecting member is the opening member and the rod. Since it is connected to the tip of the fish, it is possible to visually notify the hit of the fish, and the structure can be simplified.

One of the connecting members has a first divided body connected to the rod and a second divided body connected to the opening member, and the first divided body and the second divided body can be attached to and detached from each other. It is characterized by being equipped with a connecting / disconnecting device configured in.
According to this feature, since the first divided body and the second divided body are detachable, one of the connecting members can be used repeatedly.

The first divided body and the second divided body are characterized by being magnetically coupled.
According to this feature, a force higher than the magnetic force acts between the first divided body and the second divided body, so that the first divided body and the second divided body are immediately separated, so that the operation responsiveness is improved. It is good.

One of the first divided body and the second divided body is characterized in that a substantially bottomed tubular accommodating portion for accommodating the other of the first divided body and the second divided body is provided. ..
According to this feature, the accommodating portion guides the other moving directions of the first divided body and the second divided body, so that when a force exceeding a predetermined value is applied, the first divided body and the second divided body are separated from each other. The separation direction can be stabilized.

The second divided body is characterized in that the opening member is integrally provided.
According to this feature, since the force acting on the opening member can be directly transmitted to the second divided body, the first divided body and the second divided body can be immediately separated.

The other connecting member is characterized in that it is formed longer than the one connecting member.
According to this feature, the transition from the connected state of one connecting member to the connected state of the other connecting member can be performed with a simple configuration.

It is characterized in that the magnetic force between the first partition body and the second partition body can be adjusted.
According to this feature, it is highly versatile for the type and condition of the target fish.

It is a figure which shows the fishing tackle in Example 1 of this invention, (a) is the side view which shows the 1st connection state by the 1st connection member, (b) is the 2nd connection state by the 2nd connection member. It is a side view which shows. (A) is a side view showing the structure of the first connecting member in the first embodiment, and (b) is a side view showing the structure of the second connecting member in the first embodiment. (A) and (b) are exploded perspective views showing the structure of the clutch device constituting the first connecting member in the first embodiment. It is sectional drawing which shows the structure of the clutch device which comprises the 1st connecting member in Example 1. FIG. (A) and (b) are side views showing the arrangement relation of the clutch device in the 1st connection state of the 1st connection member in Example 1. FIG. (A) and (b) are sectional views showing modification 1 of the clutch device. It is sectional drawing which shows the modification 2 of the clutch device. It is a figure which shows the fishing tackle in Example 2 of this invention, (a) is the perspective view which shows the structure of the clutch device which constitutes the 1st connecting member, (b) is also the side view. It is a figure which shows the fishing tackle in Example 3 of this invention, (a) and (b) are sectional views which show the structure of the clutch device which constitutes the 1st connecting member.

A mode for carrying out the fishing gear according to the present invention will be described below based on examples.

The fishing gear according to the first embodiment will be described with reference to FIGS. 1 to 5. Hereinafter, the description will be made with reference to the vertical and horizontal directions when the fishing tackle is viewed from the front side of the paper surface of FIG. 1.

As shown in FIG. 1, the fishing tackle 1 is a first connecting member 5 (one connecting member) that connects the rod 2, the reel 3, the fishing line 4 extending from the reel 3 and the tip portion 2a of the rod 2. ) And the second connecting member 6 (the other connecting member), and the fishing line 4 and the tip portion 2a of the rod 2 are connected to each other in a state where tension is applied to the first connecting member 5. It is possible to change between a first connected state (see FIG. 1 (a)) and a second connected state (see FIG. 1 (b)) in which the second connecting member 6 is connected with a tension applied. In addition, the fishing tackle 1 in this embodiment exemplifies a form applied to a tow rope fishing in which a simulated bait (not shown) attached to a fishing line 4 is thrown into the sea and the simulated bait is pulled while running a ship.

As shown in FIG. 1, the rod 2 includes a ring-shaped tip portion 2a, and the right end portions of the first connecting member 5 and the second connecting member 6 are inserted into the tip portion 2a, respectively. It is connected. Further, the lower end portion of the rod 2 is connected to a drive device (not shown) having a motor, so that the rod 2 is tilted by a predetermined angle in the feeding direction (left side of the paper surface) and the fishing direction (right side of the paper surface) of the fishing line 4. It can be driven back and forth.

The reel 3 is installed on the feeding side of the fishing line 4 with respect to the rod 2 and below the tip portion 2a of the rod 2, and is connected to the tip portion 2a of the rod 2 (clutch device 50 described later). The fishing line 4 extending from the reel 3 is inserted into the through hole 53a (opening) formed at the left end of the reel 3 and is wound and sent out. Since the reel 3 of this embodiment has a well-known configuration, detailed description thereof will be omitted.

By inserting and guiding the fishing line 4 extending from the reel 3 through the through hole 53a formed at the left end of the first connecting member 5, the rigidity of the rod 2 becomes the first connecting member in accordance with the reciprocating drive of the rod 2. Since it acts on the fishing line 4 via the fishing line 5, it is possible to impart a sucking motion to the simulated bait in the sea attached to the fishing line 4.

As shown in FIGS. 1 and 2A, the first connecting member 5 includes a clutch device 50 (connecting / disconnecting device) in which the first divided body 51 and the second divided body 52 are detachably configured. A wire rod 56 that is connected to the through hole 51d formed at the right end of the clutch device 50 (first split body 51) and is connected between the clutch device 50 and the tip portion 2a of the rod 2. , Is mainly composed of. It is preferable that a high-strength fishing line, a metal wire, or the like is used for the wire 56.

As shown in FIGS. 1 and 2B, the second connecting member 6 is composed of two elastic rubber members 60 and 61, and the end portions provided at one ends of the rubber members 60 and 61, respectively. The open hooks 60a and 61a are detachably connected by engaging with each other. Further, the other end portion (right end portion) of the rubber member 60 is connected while being inserted into the tip end portion 2a of the rod 2, and the other end portion (left end portion) of the rubber member 61 is connected to the first connecting member 5 (clutch). It is connected in a state of being inserted into a through hole 53a formed at the left end portion of the device 50). The second connecting member 6 is not limited to the one composed of the linear rubber members 60 and 61, and may be composed of, for example, a metal wire or the like.

Further, the length L2 of the second connecting member 6 is formed longer than the length L1 of the first connecting member 5 (L2> L1).

Next, the clutch device 50 constituting the first connecting member 5 will be described in detail. As shown in FIGS. 3 and 4, the clutch device 50 includes a first split body 51 that constitutes the right side in the axial direction (rod 2 side) and a second split body 52 that constitutes the left side in the axial direction (fish line 4 side). It is mainly composed of and.

The first divided body 51 is made of metal such as stainless steel, and is composed of a cylindrical portion 51a and a substantially cylindrical projecting portion 51c projecting to the right from the radial center of the axially right end of the cylindrical portion 51a. The cylindrical portion 51a is formed with a bottomed cylindrical accommodating portion 51b that opens on the left side in the axial direction (see FIG. 3A). Further, a through hole 51d penetrating in the radial direction is formed in the protruding portion 51c, and the left end portion of the wire rod 56 constituting the first connecting member 5 is connected to the through hole 51d in a state of being inserted. 1 and 2 (a)).

The second divided body 52 is composed of a substantially columnar opening member 53 in which a through hole 53a penetrating in the radial direction is formed at the left end portion in the axial direction, and a substantially columnar magnet 54, and is composed of a substantially columnar magnet 54 in the axial direction of the magnet 54. An opening is made by screwing a male screw portion 53b formed at the axially right end portion of the opening member 53 into a female screw portion 54a (see FIG. 3A) formed at the center of the left end in the radial direction. The member 53 and the magnet 54 are integrally connected. The magnet 54 is a so-called permanent magnet, and the outer diameter is formed to be slightly smaller than the inner diameter of the accommodating portion 51b of the first divided body 51, so that the inner peripheral surface of the accommodating portion 51b of the first divided body 51 is formed. It can be inserted in a state where the outer peripheral surface of the magnet 54 is guided to the magnet 54.

In this way, the clutch device 50 inserts the magnet 54 constituting the second divided body 52 into the accommodating portion 51b of the first divided body 51, thereby connecting the first divided body 51 and the second divided body 52. It can be magnetically coupled. Further, a disc-shaped adjustment shim made of a biodegradable resin or a non-magnetic material such as paper between the bottom surface of the accommodating portion 51b of the first division body 51 and the axial right end of the magnet 54 of the second division body 52. By interposing the 55, the magnetic force acting between the first divided body 51 and the second divided body 52 is adjusted, and a predetermined or more force acting on the first divided body 51 and the second divided body 52 in the axial direction. Can be connected in a separable state. When the adjusting shim 55 is used repeatedly, it is preferable that the adjusting shim 55 is temporarily fixed to the bottom surface of the accommodating portion 51b of the first divided body 51 or the right end in the axial direction of the second divided body 52 with an adhesive or the like. Furthermore, by making the adjusting shim 55 made of metal, it may be attached to the magnet 54 so that it can be used repeatedly.

Further, the clutch device 50 constitutes the left end portion in the axial direction of the second divided body 52 in a state where the first divided body 51 and the second divided body 52 are magnetically coupled in the first connected state of the fishing gear 1. The fishing line 4 is inserted through the through hole 53a of the opening member 53, and the wire rod 56 is connected to the through hole 51d of the protruding portion 51c constituting the axially right end portion of the first split body 51. According to this, even if the rod 2 is reciprocally driven so as to be tilted at a predetermined angle in the feeding direction (see FIG. 5A) or the fishing direction (see FIG. 5B) of the fishing line 4, the opening member 53 penetrates. Since the axial center of the clutch device 50 is held on the extension line of the fishing line 4 extending in the feeding direction through the hole 53a, the tension transmitted from the fishing line 4 always acts on the clutch device 50. That is, the operational responsiveness of the clutch device 50 to the change in tension transmitted from the fishing line 4 is enhanced.

In the clutch device 50 of the present embodiment, the first split body 51 and the second split body 52 are combined with the tension transmitted from the fishing line 4 when the rod 2 is reciprocally driven to give the simulated bait in the sea a sucking motion. The magnetic force coupling force between the first split body 51 and the second split body 52 is adjusted to be larger than the axial force acting between the two.

Next, a method of using the fishing tackle 1 will be described. The fishing tackle 1 first connects the wire rod 56 of the first connecting member 5 and the rubber member 60 of the second connecting member 6 to the tip portion 2a of the rod 2, respectively, and first divides the fishing line 1 to form the first connecting member 5. After connecting the rubber member 61 of the second connecting member 6 to the through hole 53a of the body 51, the fishing line 4 is inserted and one end of the fishing line 4 is fixed to the reel 3 to be assembled (see FIG. 1A).

Next, the artificial bait attached to the other end of the fishing line 4 is thrown into the sea from the ship, the artificial bait is pulled while the ship is running, and the rod 2 is reciprocated to give the artificial bait in the sea a sucking motion. At this time, the fishing tackle 1 is in a first connected state in which the fishing line 4 and the tip portion 2a of the rod 2 are connected to each other with tension acting on the first connecting member 5 (see FIG. 5).

Next, when the fishing thread 4 is pulled toward the sending side (direction away from the rod 2) by a force equal to or higher than a predetermined force due to the fish eating the artificial bait, the tension transmitted from the fishing thread 4 to the clutch device 50 is first. By exceeding the magnetic force coupling force between the divided body 51 and the second divided body 52, the magnet 54 of the second divided body 52 comes out from the accommodating portion 51b of the first divided body 51, and the first divided body 51 and the first Separated from the two-divided body 52. As a result, the fishing tackle 1 is in a second connected state (see FIG. 1 (b)) in which the fishing line 4 and the tip portion 2a of the rod 2 are connected to each other with tension acting on the second connecting member 6. The hit can be visually notified.

At this time, since the second divided body 52 is connected to the tip portion 2a of the rod 2 via the second connecting member 6, when the first divided body 51 and the second divided body 52 are separated, the second divided body 52 is seconded. It is possible to prevent the split body 52 from flying to the feeding side of the fishing line 4, and it is possible to suppress excessive feeding of the fishing line 4. Further, by separating the first divided body 51 and the second divided body 52, the fishing line 4 was slightly sent out due to the difference in length (L2> L1) between the first connecting member 5 and the second connecting member 6. Later, since the fishing tackle 1 is changed to the second connected state, the tension of the fishing line 4 can be changed according to the bite of the fish to increase the hooking of the artificial bait. Further, since the second connecting member 6 is composed of the rubber members 60 and 61, it is possible to alleviate the impact when the fishing tackle 1 is changed to the second connected state due to the elasticity of the rubber members 60 and 61. ..

Further, by disengaging the hooks 60a and 61a of the rubber members 60 and 61 constituting the second connecting member 6 from the second connected state of the fishing gear 1, the reel 3 can be easily wound up. can.

Further, since the first division body 51 and the second division body 52 constituting the clutch device 50 are magnetically coupled, a force exceeding the magnetic force coupling force between the first division body 51 and the second division body 52. Since the first split body 51 and the second split body 52 are surely separated by the action of the first connecting member 5, the operation responsiveness and the operation stability of the first connecting member 5 are good. Further, the clutch device 50 can be used repeatedly.

Further, when the first divided body 51 and the second divided body 52 are separated, the outer peripheral surface of the magnet 54 of the second divided body 52 is in sliding contact with the inner peripheral surface of the accommodating portion 51b of the first divided body 51. As a result, the movement of the second divided body 52 in the axial direction is guided, so that the separation direction between the first divided body 51 and the second divided body 52 can be stabilized in the axial direction. Further, since the separation direction between the first division body 51 and the second division body 52 is the axial direction, the responsiveness of the clutch device 50 to the tension transmitted from the fishing line 4 can be enhanced.

Further, since the opening member 53 and the magnet 54 are integrally connected to the second split body 52, the force acting on the opening member 53 can be directly transmitted to the magnet 54 via the fishing line 4, and the fishing line 4 can directly transmit the force acting on the opening member 53. The responsiveness to the transmitted tension can be enhanced.

Further, since the magnetic force between the first divided body 51 and the second divided body 52 in the clutch device 50 can be adjusted by the adjusting shim 55, the versatility is high for changes in conditions such as the type of fish to be targeted and the weather.

As a modification 1 of the adjustment shim 55 in the first embodiment, as shown in FIG. 6A, an adjustment shim 155 having a changed thickness in the axial direction is interposed, or as shown in FIG. 6B. As described above, by interposing a plurality of adjusting shims 55, the distance between the bottom surface of the accommodating portion 51b of the first dividing body 51 and the axially right end of the magnet 54 of the second dividing body 52 is widened to adjust the magnetic force. May be good. Further, a screw is screwed into the bottom surface of the accommodating portion 51b of the first split body 51 or the right end of the magnet 54 of the second split body 52 in the axial direction, and the amount of protrusion in the axial direction can be adjusted by tightening the screw. You may.

Further, as a modification 1 of the first divided body 51 in the first embodiment, as shown in FIG. 7, a low friction layer 57 is provided along the inner peripheral surface of the accommodating portion 51b formed in the first divided body 51. This makes it easier for the magnet 54 of the second division 52 to come out from the accommodating portion 51b of the first division 51 when the first division 51 and the second division 52 are separated, and the tension transmitted from the fishing line 4 It is possible to enhance the operation response to.

Next, the fishing gear according to the second embodiment will be described with reference to FIG. The same components as those shown in the above embodiment are designated by the same reference numerals, and duplicate description will be omitted.

The fishing gear in the second embodiment will be described. As shown in FIG. 8, in the present embodiment, the first divided body 251 constituting the clutch device 250 is formed with, for example, a slit 251e extending in the circumferential direction at the right end in the axial direction of the cylindrical portion 251a. It is possible to easily remove the adjusting shim 55 which is temporarily fixed to the bottom surface of the accommodating portion 51b of the first divided body 51 by an adhesive material or the like by inserting a minus driver or the like from the slit 251e.

Next, the fishing gear according to the third embodiment will be described with reference to FIG. The same components as those shown in the above embodiment are designated by the same reference numerals, and duplicate description will be omitted.

The fishing gear in the third embodiment will be described. As shown in FIG. 9A, in the present embodiment, in the first divided body 351 constituting the clutch device 350, a concave portion 351e is formed in the radial direction on the inner peripheral surface on the left side in the axial direction of the accommodating portion 351b. By arranging the substantially triangular restricting piece 351f in the recess 351e in a state of being urged in the inner diameter direction by the spring 351g, the restricting piece 351f is configured to be able to appear and disappear in the radial direction in the accommodating portion 351b. ing. Further, the cylindrical member 354 of the second split body 352 constituting the clutch device 350 has an axial length of the length from the bottom surface of the accommodating portion 351b of the first split body 351 to the axial right side of the recess 351e. They are formed almost the same.

According to this, when the fishing thread 4 is pulled toward the sending side (direction away from the rod 2) by a force equal to or higher than a predetermined value due to the fish biting the artificial bait, the tension transmitted from the fishing thread 4 to the clutch device 350 is applied. Acting on the second split body 352, while moving to the left in the axial direction of the cylindrical member 354 of the second split body 352, the restricting piece 351f opposes the urging force of the spring 351 g toward the inside of the recess 351e in the outer radial direction. By pushing in and burying the entire regulation piece 351f in the recess 351e, the cylindrical member 354 of the second division body 352 comes out from the accommodating portion 351b of the first division body 351, and the first division body 351 and the second division body 352 And are separated (see FIG. 9B).

Although examples of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these examples, and any changes or additions that do not deviate from the gist of the present invention are included in the present invention. Will be.

For example, in the first embodiment, the first connecting member 5 has been described as having a configuration in which the first divided body 51 and the second divided body 52 constituting the clutch device 50 are magnetically coupled to each other. For example, a hook-and-loop fastener, an adhesive material, or the like may be provided between the first divided body and the second divided body as long as the two divided bodies can be separatedly connected by a force equal to or higher than a predetermined value. Further, the clutch device may be configured by combining the magnetic force coupling force of the magnet and the adhesive force of the hook-and-loop fastener, the adhesive material, or the like.

Further, in the first embodiment, the opening member 53 constituting the second divided body 52 and the magnet 54 have been described as being integrally connected, but the magnet 54 and the second divided body 52 are provided separately. The magnet 54 may be provided in the accommodating portion of the first divided body. Further, the opening member may be provided separately from the magnet 54. In this case, the opening member is connected to the magnet via a wire rod so that the clutch device can be placed on an extension line of the fishing line 4. It becomes easier to arrange the axis. Further, by connecting the opening member to the magnet via a spring that can be expanded and contracted in the axial direction, a part of the tension transmitted from the fishing line 4 to the clutch device is absorbed by the spring, and the clutch device and the first split body are formed. The force required to separate the second split body may be adjusted.

Further, in the clutch device of the above embodiment, the first divided body connected to the rod 2 and the second divided body connected to the opening member 53 may be interchanged in the opposite directions.

Further, the first divided body and the second divided body are not limited to those configured in a columnar or cylindrical shape.

Further, in the above embodiment, the first connecting member 5 has been described as being provided with a clutch device that can be repeatedly used by the first divided body and the second divided body being detachably configured. It is not limited to the one that can be used only once, and the first connecting member is composed of a wire rod or the like that is weaker than the second connecting member, so that the first connecting member is broken by a force equal to or more than a predetermined value. It may be a thing.

Further, the second connecting member 6 has been described as assuming that the two rubber members 60 and 61 are engaged with each other by hooks 60a and 61b having open ends formed at one end thereof and are integrally connected to each other. One may be configured in a ring shape in which the end is not opened. Further, one hook may be configured such as a so-called swivel that opens and closes by an external force.

Further, the second connecting member 6 may be composed of one member as long as the first connecting member is not broken by a predetermined force of separation and is longer than the first connecting member. ..

Further, in the above embodiment, the fishing gear has been described as being used in tow rope fishing, but it can also be used in hand-held fishing such as throwing fishing and bukkake fishing.

1 Fishing tackle 2 Rod 2a Tip 3 Reel 4 Fishing line 5 First connecting member (one connecting member)
6 Second connecting member (the other connecting member)
50 Clutch device (disconnecting device)
51 First division body 51a Cylindrical part 51b Accommodation part 51c Protruding part 51d Through hole 52 Second division body 53 Opening member 53a Through hole (opening)
54 Magnet 55,155 Adjusting shim 56 Wire rod 60,61 Rubber member 60a, 61a Hook 250 Clutch device 251 First split body 251e Slit 350 Clutch device 351 First split body 351b Accommodating part 351e Recess 351f Restriction piece 351g Spring 352 Second split body

Claims (7)

In fishing gear with rods and reels
It has an opening member having an opening for guiding a fishing line extending from the reel, and the opening member and the tip of the rod are connected by two connecting members.
One of the connecting members is separated from the opening member and the tip of the rod by a force equal to or higher than a predetermined value.
A fishing tackle characterized in that when one of the connecting members is separated, the other connecting member is in a connected state between the opening member and the tip of the rod. One of the connecting members has a first divided body connected to the rod and a second divided body connected to the opening member, and the first divided body and the second divided body can be attached to and detached from each other. The fishing tackle according to claim 1, wherein the fishing tackle is provided with a connecting / disconnecting device configured in the above. The fishing tackle according to claim 2, wherein the first divided body and the second divided body are magnetically coupled. One of the first divided body and the second divided body is provided with a substantially bottomed tubular accommodating portion for accommodating the other of the first divided body and the second divided body. The fishing gear according to claim 2 or 3. The fishing tackle according to any one of claims 2 to 4, wherein the second divided body is integrally provided with the opening member. The fishing tackle according to any one of claims 1 to 5, wherein the other connecting member is formed longer than one of the connecting members. The fishing tackle according to any one of claims 3 to 6, wherein the magnetic force between the first divided body and the second divided body can be adjusted.

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