harpoon

Abstract

To provide a novel harpoon having excellent operability more than the conventional harpoon with a spear.SOLUTION: A harpoon 1 includes a spear part 4 detachably attached to a tip 3a of a pole part 2 of the harpoon, a spear line 5 attached to the spear part 4, a tension line 7 having one end attached to the pole part 2 and the other end connected to the spear line 5, and a rope part 6 connected to the spear line 5 for pulling the spear part 4. The harpoon further includes a magnet connector 9 provided on the tension line 7 and having a connected state where the tension line 7 is connected by magnetic force according to the tension applied to the vest line 5, and a separated state.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a harpoon for stabbing underwater creatures such as fish. [Background technology]

[0002] Harpoons having a vest portion have been known in the past. For example, as illustrated in Patent Document 1, a vest-like arrowhead is attached to the tip of the harpoon body, and a string is attached to the arrowhead.After stabbing a fish, the fish is pulled in by the string.

[0003] Generally, harpoons with this type of vest have a vest line (wire) extending from the vest and connected to a rope. The vest line is also connected to a tension line made of rubber or other material. The harpoon is configured so that a loop (ring) at the base end of the tension line can be hooked onto a protrusion or similar on the handle of the harpoon.

[0004] While the harpoon is being used to target a fish, the waistcoat is pulled downward by a tension line to prevent it from coming off the tip of the harpoon body. On the other hand, after the vest part has pierced the fish, it is desirable for the vest part to quickly detach from the harpoon body, and the angler can pull the rope part to land the fish.

[0005] With conventional harpoon configurations, when the waistcoat part is pierced into the fish, the user (angler) operates the loop part at the base end of the tension line to release it from the protrusion, and then pulls the rope to reel in the fish (land it). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 5-115233 Summary of the Invention [Problem to be solved by the invention]

[0007] However, with the harpoons of the above-mentioned prior art, there was a problem that the vest part would accidentally come off the tip of the harpoon against the angler's intention while targeting a fish or other underwater creature. Also, even after the vest part had penetrated a fish or the like, the loop part of the vest line would be difficult to remove from the protrusion on the handle, making them difficult to use.

[0008] The present invention has been made to solve the above problems and to provide a harpoon that is easy to operate. The object of the present invention is to provide a harpoon that can solve the problem of the vest part unintentionally coming off the tip of the harpoon or the problem of the tension line coming off a protrusion or the like on the handle when moving the harpoon to aim at a fish or the like. Another object of the present invention is to provide a harpoon that can solve the problem of the vest part being difficult to remove even when a fish is stuck in it. [Means for solving the problem]

[0009] The harpoon according to the first aspect of the present invention comprises: a vest part detachably attached to the tip of the handle of the harpoon; a vest line attached to the vest portion; a tension line having one end attached to the handle and the other end connected to the vest line; a rope portion connected to the vest line and pulling the vest portion, The tension line is provided with a magnetic connector that uses magnetic force to change between a connected state in which the tension line is maintained and a separated state depending on the tension applied to the vest line.

[0010] A second aspect of the present invention is the harpoon according to the first aspect, characterized in that the magnetic connector is configured to include a plurality of magnets. A third aspect of the present invention is the harpoon according to the first aspect, characterized in that it is configured to include a magnet and a ferromagnetic material.

[0011] A fourth aspect of the present invention is the harpoon according to the first aspect, characterized in that the vest line has a ring-shaped locking portion to which the tension line is detachably connected. A fifth aspect of the present invention is the harpoon described in the fourth aspect, characterized in that the magnetic connector has a connector-side ring-shaped portion that can be locked onto the ring-shaped locking portion.

[0012] A sixth aspect of the present invention is the harpoon according to the fourth aspect, the magnetic connector has a magnet storage section for storing a magnet, an attraction surface section to which the magnet is attracted, and a hook section provided on the opposite side of the attraction surface section, The hook portion is detachably engaged with the ring-shaped engaging portion.

[0013] A seventh aspect of the present invention is the harpoon according to the first aspect, characterized in that a salt damage guard layer is formed on the surface of the magnetic connector. [Effects of the Invention]

[0014] The present invention provides a harpoon that solves the problem of the vest part unintentionally coming off the tip of the harpoon when moving the harpoon to aim at a fish or the like, or the problem of the tension line coming off a protrusion on the handle. Furthermore, the present invention can provide a harpoon that can solve the problem of the vest part being difficult to remove even when a fish is stuck in it. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a diagram showing an overall view of a harpoon according to an embodiment of the present invention. [Figure 2] FIG. 2 is a schematic enlarged view of a main part of the harpoon according to the present embodiment. [Figure 3] 1A and 1B are diagrams showing an example of a magnet connector in this embodiment, where (a) is a perspective view and (b) is a front view seen from the attraction surface portion. DETAILED DESCRIPTION OF THE INVENTION

[0016] A harpoon according to a first embodiment of the present invention will be described in detail below with reference to the drawings. [First embodiment] Figure 1 is a diagram depicting the entire harpoon, Figure 2 is a schematic enlarged view of the main parts to explain the connection form of the vest line, tension line equipped with a magnetic connector, rope section, etc., and Figure 3 is a diagram showing an example of a magnetic connector, where (a) is an oblique view and (b) is a front view seen from the suction surface.

[0017] The harpoon 1 according to this embodiment has a handle 2 that is held in the hand of a user (not shown), such as an angler, a push rod 3 that extends from the handle 2 toward the tip, and a vest 4 that is detachably attached to the tip 3a of the push rod 3. The tip 3a of the push rod 3 forms the tip of the handle 2 of the harpoon 1.

[0018] The vest 4 is a component that can be considered the tip of the harpoon, and is detachably attached to the tip 3a of the handle 2 of the harpoon 1. A wire or string material called a vest line 5 is attached to the vest 4. The vest 4 is inserted into the body of the fish, and the return part 4m provided on the vest 4 makes it difficult to remove from the fish. Note that the vest 4 shown in Figure 2 is a schematic diagram, and various vest 4 configurations other than those shown in Figure 2 can be used as appropriate depending on the type of fish to be harpooned and the user's preference. The push rod portion 3 is the tip end portion of the handle portion 2, and is a rod material that is inserted into the fish body and is made of a strong material such as a stainless steel rod.

[0019] The harpoon 1 also has a rope section 6 that is connected to the vest line 5, and a tension line 7 that is connected to the vest line 5. The handle 2 has a fixing section 8 that fixes the base end of the tension line 7. In this specification, "connection" also includes a configuration in which the connection is made using an indirect member such as a ring-shaped locking section 10.

[0020] As will be described later, the rope portion 6 is a wire or string portion that allows the user to pull the vest portion 4 that is stuck in the fish and reel in the fish when the tension line 7 is separated from the vest line 5 by the magnetic connector 9.

[0021] The tension line 7 is made of various elastic materials such as elastic rubber cord or spring wire, and one end (base end) is attached to the fixed part 8 of the handle part 2, and the other end (tip end) is connected to the vest line 5. The tension line 7 is a member that constantly pulls the vest part 4 connected by the vest line 5 toward the handle part 2 (base end), thereby supporting the vest part 4 so that it does not come off the tip part 3a of the push rod part 3.

[0022] In the description of this embodiment, the tension line 7 may refer to the entire tension line 7 equipped with the magnetic connector 9, or may refer to a tensioned rubber cord, wire, or other elastic body connected to the magnetic connector 9.

[0023] In the configuration of the first embodiment shown in Figures 1 and 2, a ring-shaped locking portion 10 is provided as an indirect member connecting the vest line 5 and the rope portion 6, and the vest line 5 and the tension line 7, respectively.

[0024] The ring-shaped fastening portion 10 is a member provided on the base end side of the vest line 5, and is a member that detachably fastens the tip end 6s of the rope portion 6 and the tip end 7s of the tension line 7. The ring-shaped locking portion 10 has, for example, an intake portion 11 into which the tip portions 6s and 7s are inserted. The intake portion 11 is composed of a slide portion or hinge portion that can be opened and closed freely.

[0025] An example of the ring-shaped locking portion 10 is a carabiner 15. As shown in Figure 1, the handle 2 has a grip 13 at a position that is easy to grasp with the hand. In addition, the handle 2 may be provided with an extendable section (not shown) that allows the length of the handle 2 to be adjusted to make it easier for the user to operate.

[0026] <Magnetic connector 9> The magnetic connector 9 is a connector that utilizes magnetic force and can assume two states depending on the magnitude of tension applied to the vest line 5 by a fish that has been caught in the vest part 4: a connected state in which the connection of the tension line 7 is maintained by magnetic force, and a separated state in which the tension exceeds the attractive force of the magnetic force.

[0027] In the illustrated example, the magnetic connector 9 is attached to a portion of the tension line 7. In other words, other configurations are possible, such as providing a magnetic connector 9 that connects directly to the ring-shaped locking portion 10 and providing the tension line 7 on the handle 2 side, providing a tension line 7 on the ring-shaped locking portion 10 side and providing a magnetic connector 9 that connects directly to the fixed portion 8 of the handle 2, or providing two tension lines 7 and providing a magnetic connector 9 in the middle of the tension lines 7.

[0028] Since the harpoon 1 according to this embodiment is often intended for large fish such as tuna and swordfish, it is preferable that a strong magnet be used in the magnetic connector 9. For example, a neodymium magnet can be suitably used as such a magnet 18.

[0029] The magnet 18 used in the magnetic connector 9 is configured to include multiple magnets 18 that function as south and north poles, and it is usually simple and preferable to use a pair of magnets 18. However, this does not exclude the possibility of one being a magnet 18 and the other being made of a ferromagnetic metal such as iron. When the other is made of a ferromagnetic material, for example, using the configuration shown in Figure 3 as an example, it is sufficient that only one of the magnets 18 is made of a ferromagnetic metal.

[0030] 3, the magnet connector 9 has two magnet units 20. The magnet connector 9 is configured by arranging the two magnet units 20 facing each other. The magnet unit fixture 20 has a magnet fixing portion 21, a magnet storage portion 22, two magnets 18 functioning as an S pole and an N pole, an adhesive surface portion 23, a knob portion 24 provided on the opposite side of the adhesive surface portion 23, and a hook portion 25 provided on the opposite side of the adhesive surface portion 23.

[0031] The magnet fixing portion 21 is configured with a recess or the like that can accommodate the magnet 18. In the configuration shown in FIG. 3, a flat, disk-shaped neodymium magnet 18 is accommodated in a flat, cylindrical recess. The magnet fixing portion 21 can also be configured with a flat surface. In that case, the magnet 18 may be fixed to the flat surface using a joining means, such as an adhesive.

[0032] The attraction surface portion 23 is a surface portion of the magnet unit fixture 20 that is attracted by the magnetic force of the two magnets 18. As shown in Figure 3(a), the attraction surface portion 23 is not limited to a configuration in which two flat surfaces face each other to attract each other, but other engaging shapes such as one concave and the other convex can also be used.

[0033] Magnet storage section 22 is a member that supports magnet 18 and covers magnet 18 to magnetically shield the area around attraction surface section 23. Magnet storage section 22 is made of a material that is difficult for magnetic fields to leak, such as a magnetic field-shielding synthetic resin or stainless steel. In this embodiment, stainless steel is used.

[0034] The grip portion 24 is a portion that extends from the magnet storage portion 22 toward the opposite side of the attraction surface portion 23, and its shape and configuration are not particularly limited as long as it can form the substantially disk-shaped magnet 18 into a shape that is easy to hold with the fingers.

[0035] The hook portion 25 is an engagement means for connection that protrudes from the knob portion 24 or the magnet storage portion 22 on the side opposite to the attraction surface portion 23 of the magnet 18, and is often configured on the connector side annular portion 17.

[0036] As shown in FIG. 3, when the hook portion 25 is a complete ring shape without a break, the ring-shaped fastening portion 10 provided on the vest line 5 preferably has an intake portion 11 . On the other hand, if the ring-shaped locking portion 10 provided on the vest line 5 is a simple ring-shaped portion without an intake portion 11, it is preferable that the hook portion 25 of the magnetic connector 9 has an intake portion on the connector side (not shown) such as an opening or a slide portion.

[0037] The hook portion 25 provided on the magnetic connector 9 preferably has a rotation support portion 26 that can rotate or turn about a rotation axis 27 that is the axial direction of the tension line 7 connected to the magnetic connector 9. By having the rotation support portion 26, it is possible to prevent problems such as excessive twisting of the tension line 7 or the vest line 5.

[0038] It is also preferable to form a salt damage protection layer to prevent deterioration due to the salt content of seawater on the surface of the magnetic coupler 9. One method for forming such a salt damage protection layer is to coat the surface of the magnetic coupler 9 with salt damage protection paint by means of a spray or the like.

[0039] By providing the magnetic connector 9, it is possible to set the vest part 4 to maintain a fairly strong pulling force so that the harpoon 1 will not come off even when the user performs large operations on the harpoon 1 before stabbing a fish. Furthermore, after the fish or the like has been speared, the attractive force of the magnet 18 can be set so that the magnetic connector 9 quickly moves to the separated state in response to the resistance (tension) caused by the movement of the fish or the like.

[0040] The numerical range of the magnetic attraction force can be set within a predetermined range depending on various factors such as the size of the target fish, etc., and the way in which the user uses the harpoon 1.

[0041] It is also possible to provide multiple levels of magnetic connectors 9 that can be set to the separated state, depending on the size of the fish targeted by the harpoon 1, the pulling strength of each species of fish, etc. For example, to meet the needs of users, it is possible to provide a highly sensitive series (product lineup) that can be set to the separated state with a small amount of tension, and a less sensitive series that can only be set to the separated state with a large amount of tension.

[0042] <effect> The operation and advantages of the harpoon 1 in this embodiment will be briefly described below. When throwing the harpoon 1 to target a fish or the like, the harpoon 1 may move significantly depending on the user's operation, but if the tension line 7 is set to pull the vest part 4 downward (towards the handle part 2), it will almost never come off.

[0043] On the other hand, when the harpoon 1 is thrown to pierce the fish and catch it, if a predetermined amount of tension is applied to the vest line 5 as the fish tries to escape, the magnetic connector 9 automatically disconnects and the tension line 7 becomes separated.

[0044] Therefore, unlike conventional methods, the angler no longer needs to worry about when to release the loop portion at the base end of the tension line 7 from the protrusion on the handle portion 2, or how to remove the loop portion at the base end of the tension line 7 from the protrusion, and can instead concentrate on operations such as pulling the rope portion 6 to reel in the fish.

[0045] Furthermore, when the rope part 6 penetrates the fish and tension is applied to the vest line 5, making it possible to catch the fish, the tension line 7 automatically separates from the vest line 5, allowing the angler to immediately know that tension is being applied to the fish. This means that there is no need to pay attention to whether the tension line 7 has separated from the handle part 2, which has the advantage of reducing the chance of failing to catch the fish.

[0046] In this way, with the configuration of this embodiment, the vest portion 4 can be held at the tip portion 3a of the push rod portion 3 with a fairly high degree of stability, and has the advantage that after it has been stuck in a fish, it will automatically and quickly come off if a certain tension is applied, thereby solving the problem of conventional harpoons being difficult to operate.

[0047] [Variation 1] The handle 2 can be made of the same metal material as the push rod 3, such as stainless steel, or it can be made of a material with moderate elasticity, such as glass fiber. If the handle 2 is made of a lightweight, elastically deformable material, such as glass fiber, it is expected that fatigue on the user can be reduced.

[0048] Whether the handle portion 2 is preferably made of a metal such as stainless steel or a lightweight, elastically deformable material such as fiberglass largely depends on the user's preference, so either configuration can be adopted as an embodiment of the present invention (individual product).

[0049] The technical feature of the present invention is that automatic detachment occurs due to the magnitude relationship between the tension transmitted to the tension line 7 via the vest line 5 due to the pulling force of a fish or the like, and the magnetic attraction force of the magnetic connector 9. Therefore, the present invention can be modified as needed, as appropriate, in terms of the structure and material of the ring-shaped fastening part 10 (indirect member) provided on the base end side of the vest line 5, and the structure for separating the ring-shaped fastening part 10 from the base end of the vest line 5 when catching a fish or the like. Furthermore, although the above embodiment has been described using the example of capturing aquatic organisms such as fish, the harpoon of the present invention does not exclude its use in capturing terrestrial organisms as needed.

[0050] Although the present invention has been described above by way of example of an embodiment, the technical scope of the present invention is not limited to the configurations described in the above embodiment. The technical scope of the present invention should be determined based on the claims, and it goes without saying that various modifications, additions to the configuration, and improvements can be made within that scope. [Explanation of symbols]

[0051] 1:Harpoon 2: Handle 3: Push rod 4: Vest part 5: Vest line 6: Rope section 7: Tension line 8: Fixed part 9: Magnetic connector 10: Ring-shaped locking part 11: Intake section 15: Carabiner (an example of the ring-shaped locking portion 10) 17: Connector side ring-shaped part 18: Magnet 22: Magnet storage section 23: Adsorption surface part 25: Hook portion (an example of the connecting tool side ring-shaped portion 17)

Claims

1. a vest part detachably attached to the tip of the handle of the harpoon; a vest line attached to the vest portion; a tension line having one end attached to the handle and the other end connected to the vest line; a rope portion connected to the vest line and pulling the vest portion, A harpoon characterized by having a magnetic connector attached to the tension line that uses magnetic force to change between a connected state in which the tension line is maintained connected and a separated state depending on the tension applied to the vest line.

2. 2. The harpoon of claim 1, wherein the magnetic connector comprises a plurality of magnets.

3. 2. The harpoon according to claim 1, wherein the magnetic connector comprises a magnet and a ferromagnetic material.

4. 2. The harpoon according to claim 1, wherein the vest line has a loop-shaped fastening portion to which the tension line is detachably connected.

5. 5. The harpoon according to claim 4, wherein the magnetic connector has a connector-side ring-shaped portion that can be locked onto the ring-shaped locking portion.

6. the magnetic connector has a magnet storage section for storing a magnet, an attraction surface section to which the magnet is attracted, and a hook section provided on the opposite side of the attraction surface section, 5. The harpoon according to claim 4, wherein the hook portion is removably engaged with the ring-shaped engaging portion.

7. 2. The harpoon according to claim 1, wherein a salt damage protection layer is formed on the surface of the magnetic connector.

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