Fishing sinker or lure

Abstract

To provide a fishing sinker or lure that can be easily impregnated with a fish-attracting agent.SOLUTION: A fishing sinker 1 or lure comprises a porous sintered metal 2, where pores 3 or through-holes 4 contained in the porous sintered metal 2 are capable of being impregnated with a fish-attracting agent. The porous sintered metal 2 may include pores 3 having a diameter of 0.1 mm or more and a depth of 0.1 mm or more. The porous sintered metal 2 may also include through-holes 4 having a diameter of 0.1 mm or more. Furthermore, a vibrator 7 may be provided at a position capable of imparting vibration to the fishing sinker 1 or lure, so that the fish-attracting agent in the pores 3 or through-holes 4 is dispersed by the vibration from the vibrator 7. The vibrator 7 may be a piezoelectric vibration plate. Further, power supply means 8 for supplying power to the vibrator 7 may be included. The power supply means 8 may be a water-flow power generation device that converts water flow into electric power. Moreover, a fish-detecting sensor 9 electrically connected to the vibrator 7 may also be provided.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fishing sinker or lure. [Background technology]

[0002] A sinker is used to sink and anchor fishing bait or artificial lure at a fishing spot, and a sabiki basket is attached between the main line and the main line or at the bottom of the sinker. The sabiki basket is filled with bait such as krill, and the fishing rod is moved up and down to scatter the bait. Conventionally, a sabiki basket and a sinker formed as an integral unit (see, for example, JP 2009-136269 A) and a sabiki basket and a sinker formed as detachable units have been disclosed (see, for example, JP 2023-129801 A).

[0003] On the other hand, in addition to the method of forming the sabiki cage integral with the sinker, attempts have been made to hold a fish attractant inside the lure. An outlet connecting the inside and outside of the lure is provided on the surface of the lure, and a sponge member containing a fish attractant is provided near the outlet inside the lure (see JP 2021-185841 A). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2023-129801

[0005] [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-136269

[0006] [Patent Document 3] Patent Publication No. 2021-185841

[0007] However, in conventional sabiki sinkers, the sabiki cage and sinker must be manufactured separately and then combined, making the manufacturing process complicated. Also, it is difficult to form a fine mesh in the sabiki cage, making it difficult to retain the fish attractant for a long period of time.

[0008] On the other hand, even with conventional lures that can contain a fish attractant, the structure is complicated, which may increase manufacturing costs.Furthermore, since no filter is provided between the sponge member containing the fish attractant and the outlet, it is difficult to retain the fish attractant for a long period of time, as mentioned above. Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been made in consideration of these inconveniences, and aims to provide a sinker or artificial bait that can retain a fish attractant for a long period of time, has high fish-attracting properties, and is easy to manufacture. [Means for solving the problem]

[0010] The invention made to solve the above problems is a fishing sinker or lure comprising porous sintered metal, characterized in that the holes or through-holes in the porous sintered metal can be impregnated with a fish attractant. By making the fishing sinker or lure out of porous sintered metal, it is possible to easily impregnate the fishing sinker or lure with a fish attractant, thereby improving fish-attracting properties. In addition, there is no need to manufacture the sinker and sabiki trap separately, which improves ease of manufacture.

[0011] The porous sintered metal preferably contains pores with a diameter of 0.1 mm or more and a depth of 0.1 mm or more. By containing pores with a diameter of 0.1 mm or more and a depth of 0.1 mm or more, the fish-attracting ability can be further improved. Furthermore, even if the surface of the sinker or artificial bait is painted or decorated for the purpose of attracting fish, the fish-attracting agent inside can be diffused to the outside through the pores, thereby maintaining the fish-attracting ability.

[0012] Furthermore, the porous sintered metal preferably includes through-holes with a diameter of 0.1 mm or more. By including through-holes with a diameter of 0.1 mm or more, the fish-attracting ability can be further improved, and a fishing line can be passed through them, allowing a sinker or lure to be easily attached to the fishing line. Furthermore, by passing the fishing line through the through-holes, when the fishing line is jerked up and down to attract fish, the sinker or lure moves perpendicular to the through-holes, allowing water to flow through the through-holes more efficiently, further diffusing the fish attractant inside up and down, resulting in a more effective fish-attracting effect.

[0013] Furthermore, a vibrator may be provided at a position where it can impart vibration to the fishing sinker or lure, and the fish attractant in the hole or through-hole may be dissipated by the vibrations of the vibrator. By providing the fishing sinker or lure with the vibrator, the fish attractant can be dissipated at the appropriate time.

[0014] The vibrator may be a piezoelectric vibrating plate. By using a piezoelectric vibrating plate as the vibrator, it is possible to impart vibration to the sinker or artificial bait with a simple structure, thereby improving fish-attracting properties.

[0015] Furthermore, it is preferable to provide a power supply means for supplying power to the vibrator.

[0016] The power supply means may be a water current power generator that converts water current into electricity. By using a water current power generator as the power supply means, power can be supplied from near the sinker, and energy loss during power transmission can be reduced.

[0017] Furthermore, it is preferable to provide a fish detection sensor electrically connected to the transducer. By providing the sinker or lure with a fish detection sensor, it is possible to reduce unnecessary loss of the fish attractant.

[0018] The frequency of the vibrator may be changed when the fish detection sensor detects a school of fish. By configuring the fish detection sensor to change the frequency of the vibrator when the fish detection sensor detects a school of fish, it is possible to suppress unnecessary dissipation of the fish attractant.

[0019] Furthermore, it is preferable to contain a fish attractant in the holes or through-holes. By containing a fish attractant in the holes that make up the porous sintered metal, the fish-attracting ability of the fishing tackle that constitutes the sinker or lure can be improved. By impregnating the sinker or lure with a fish attractant in advance, the time it takes to start fishing can be shortened. [Effects of the Invention]

[0020] As described above, according to the fishing sinker or artificial lure according to the embodiment of the present invention, it is possible to easily impregnate a fish attractant and improve fish-attracting properties. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a perspective view of a fishing sinker according to one embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view of a fishing sinker according to one embodiment of the present invention. [Figure 3] FIG. 3 is a cross-sectional view of a fishing sinker according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate. The embodiment is provided to facilitate understanding of the present invention and is not intended to limit the present invention. In the following description, terms indicating specific directions or positions (e.g., terms including "upper" and "lower") will be used as necessary, but the use of such terms is provided to facilitate understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of such terms.

[0023] FIG. 1 is a perspective view of a fishing sinker 1 according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view thereof.

[0024] The fishing sinker 1 in FIG. 1 is made of porous sintered metal 2, and the holes 3 and through-holes 4 contained in the porous sintered metal 2 can be impregnated with a fish attractant.

[0025] The diameter of the holes 3 is not particularly limited and can be set arbitrarily as long as the fish attractant can be impregnated therein as described above. The lower limit of the diameter of the holes 3 is preferably 1.0 mm, more preferably 3.0 mm, and even more preferably 5.0 mm. By setting the lower limit of the diameter of the holes 3 within this range, the fish attracting ability can be further improved. On the other hand, the upper limit of the diameter of the holes 3 is preferably 20.0 mm, more preferably 18.0 mm, and even more preferably 16.0 mm. By setting the upper limit of the diameter of the holes 3 within this range, the rapid dissipation of the fish attractant can be suppressed.

[0026] The depth of the holes 3 is not particularly limited and can be set arbitrarily as long as the fish attractant can be impregnated as described above. The lower limit of the depth of the holes 3 is preferably 1.0 mm, more preferably 3.0 mm, and even more preferably 5.0 mm. By setting the lower limit of the depth of the holes 3 within this range, the fish attractant can be well retained. On the other hand, the upper limit of the depth of the holes 3 is preferably 20.0 mm, more preferably 18.0 mm, and even more preferably 16.0 mm. By setting the upper limit of the depth of the holes 3 within this range, the fish attractant can be well dispersed.

[0027] The porous sintered metal 2 may include through-holes 4. When the porous sintered metal 2 has through-holes 4, it is possible to improve the fish-attracting ability.

[0028] The diameter of the through holes 4 is not particularly limited and can be set arbitrarily as long as the fish attractant can be impregnated therein as described above. The lower limit of the diameter of the through holes 4 is preferably 1.0 mm, more preferably 3.0 mm, and even more preferably 5.0 mm. By setting the lower limit of the diameter of the through holes 4 within this range, the fish attracting ability can be further improved. On the other hand, the upper limit of the diameter of the through holes 4 is preferably 20.0 mm, more preferably 18.0 mm, and even more preferably 16.0 mm. By setting the upper limit of the diameter of the through holes 4 within this range, the rapid dissipation of the fish attractant can be suppressed.

[0029] The porosity of the porous sintered metal 2 is not particularly limited and can be set arbitrarily as long as the fish attractant can be impregnated satisfactorily as described above. The lower limit of the porosity of the porous sintered metal 2 is preferably 20.0%, more preferably 22.5%, and even more preferably 25.0%. Setting the lower limit of the porosity of the porous sintered metal 2 within this range can improve fish-attracting properties. On the other hand, the upper limit of the porosity of the porous sintered metal 2 is preferably 40.0%, more preferably 37.5%, and even more preferably 35.0%. Setting the upper limit of the porosity of the porous sintered metal 2 within this range can suppress rapid dissipation of the fish attractant. Furthermore, setting the porosity of the porous sintered metal 2 within the above range can optimize the sinking speed of the sinker 1, improving the operability of the fishing tackle.

[0030] The apparent specific gravity of the porous sintered metal 2 is not particularly limited and can be set arbitrarily. The lower limit of the apparent specific gravity of the porous sintered metal 2 is preferably 10, more preferably 11, and even more preferably 12. The upper limit of the apparent specific gravity of the porous sintered metal 2 is preferably 16, more preferably 15, and even more preferably 14. By setting the apparent specific gravity of the porous sintered metal 2 within this range, the sinking speed of the sinker 1 can be optimized, and the operability of the fishing tackle can be improved.

[0031] Preferred examples of the metal constituting the porous sintered metal 2 include gold (Au), platinum (Pt), iridium (Ir), rhodium (Rh), palladium (Pd), silver (Ag), mercury (Hg), stainless steel (Fe, Cr, Ni, etc.), copper (Cu), bismuth (Bi), antimony (Sb), lead (Pb), tin (Sn), titanium (Ti), nickel (Ni), chromium (Cr), zirconium (Zr), niobium (Nb), and aluminum (Al). Furthermore, alloys of these metals may also be used.

[0032] The porous sintered metal 2 may be manufactured by any manufacturing method as long as it can produce a porous metal body. Preferably, the porous sintered metal 2 is manufactured by sintering. Manufacturing the porous sintered metal 2 by sintering allows the pores 3 and through-holes 4 that make up the porous sintered metal 2 to be easily impregnated with a fish attractant. Here, sintering refers to a processing method in which raw metal powder is placed in a mold, pressed, and then baked at a temperature lower than the melting point of the raw material. By changing the combination and blending ratio of the raw materials, it is possible to create sintered bodies with various characteristics, and it is possible to manufacture sinkers with desirable ranges of porosity and apparent specific gravity. This improves both the favorable dissipation of the fish attractant and the operability of fishing equipment containing the sinker.

[0033] Fig. 3 is a cross-sectional view of a fishing sinker according to another embodiment. The sinker 1 comprises a vibrator 7 that imparts vibrations to the sinker 1, a fish-detection sensor 9 that detects schools of fish, and power supply means 8 that supplies power to these. The embodiment shown in Fig. 3 comprises the vibrator 7, the fish-detection sensor 9, and the power supply 8, but it is also possible to have only the vibrator 7 and the power supply 8, without the fish-detection sensor 9.

[0034] As shown in FIG. 3, by providing sinker 1 with vibrator 7, the fish attractant in hole 3 and through-hole 4 can be dispersed by vibration caused by the vibrator.

[0035] Any vibrator can be used as the vibrator 7 as long as it can impart vibrations to the fishing sinker that can dissipate the fish attractant. A piezoelectric vibrating plate using a piezoelectric element is preferably used as the vibrator 7. A piezoelectric vibrating plate is preferably used because it can generate vibrations with a simple structure.

[0036] The piezoelectric diaphragm is composed of a thin piezoelectric body and a pair of electrodes provided on both sides of the piezoelectric body.

[0037] Any material may be used as the piezoelectric body as long as it can impart vibration to the weight 1, and examples of such materials include piezoelectric ceramics and piezoelectric resins. By using these materials as the piezoelectric body, it is possible to impart appropriate vibration to the weight 1.

[0038] Any piezoelectric ceramic may be used as long as it can impart appropriate vibration to weight 1, but examples that can be used include lead zirconate, lead zirconate titanate, lead lanthanum zirconate titanate, barium titanate, lead titanate, potassium niobate, lithium niobate, lithium tantalate, sodium tungstate, zinc oxide, barium strontium titanate, strontium bismuth tantalate, lead metaniobate, and lead scandium niobate. By using these materials as piezoelectric ceramics, appropriate vibration can be imparted to weight 1.

[0039] Any piezoelectric resin may be used as long as it can impart appropriate vibration to the weight 1, and examples of such materials include polyvinylidene fluoride and polylactic acid. By using these materials as the piezoelectric resin, appropriate vibration can be imparted to the weight 1.

[0040] The material for forming the piezoelectric body may be, for example, quartz crystal, etc. By using quartz crystal as the material for forming the piezoelectric body, it is possible to impart appropriate vibration to the weight 1.

[0041] Examples of materials that can be used to form the electrodes include metals such as gold, platinum, silver, copper, palladium, chromium, molybdenum, iron, tin, aluminum, and nickel.

[0042] The piezoelectric diaphragm may be composed of a thin piezoelectric body and a pair of comb-shaped electrodes provided on one side of the piezoelectric body. The electrodes can be provided on only one side of the piezoelectric body, rather than on both sides. By providing electrodes on only one side of the piezoelectric body, the thickness of the piezoelectric diaphragm can be reduced, allowing for miniaturization.

[0043] The comb electrode has a base extending in one direction and comb portions extending in a direction not parallel to the one direction. It is preferable that a plurality of comb portions are provided for one base. It is also preferable that the plurality of comb portions are provided so as to extend perpendicular to the base and parallel to each other. It is preferable that a pair of comb electrodes of the same shape is prepared and one comb electrode and the other comb electrode are arranged opposite each other so as to interdigitate with each other. By arranging one comb electrode and the other comb electrode opposite each other so as to interdigitate with each other, one surface of the piezoelectric body can be vibrated, and vibration can be imparted to the weight 1.

[0044] It is also possible to stack multiple piezoelectric diaphragms, each with a pair of comb electrodes on one surface of a piezoelectric body. The piezoelectric diaphragms are preferably stacked so that the surface of one piezoelectric body on which the pair of comb electrodes is provided (one surface) is in contact with the surface of another piezoelectric body on which the pair of comb electrodes is not provided (the other surface). The comb electrodes on one side of each piezoelectric body are electrically connected to each other, and the comb electrodes on the other side are electrically connected to each other. By stacking multiple piezoelectric diaphragms in this way, it is possible to increase the energy generated by vibration.

[0045] In the piezoelectric diaphragm according to this aspect, the piezoelectric material and electrode material according to the aspect in which a pair of electrodes is provided on both sides of the piezoelectric body described above can also be used.

[0046] The piezoelectric diaphragm may be coated with a corrosion-resistant film or plating. By coating the piezoelectric diaphragm with a corrosion-resistant film or plating, corrosion caused by substances contained in seawater, etc. If the piezoelectric diaphragm includes a stack of multiple piezoelectric diaphragms, the stack may be coated with a corrosion-resistant film or plating.

[0047] Any means may be used as the power supply means 8 for the vibrator 7 as long as it is capable of supplying power to the vibrator 7. A water current power generator that converts water current into electricity is preferably used as the power supply means 8. If power is supplied from land, the distance to the vibrator 7 increases, resulting in a large energy loss during power transmission. By using a water current power generator, power can be supplied from close to the weight. This allows the wiring to the vibrator 7 to be shortened, thereby reducing energy loss during power transmission.

[0048] The fishing sinker 1 may further include a fish detection sensor 9. The fish detection sensor 9 is electrically connected to the transducer 7 and is configured to increase the vibration frequency of the transducer 7 when the fish detection sensor 9 detects a school of fish. When the sinker 1 is away from the school of fish, the frequency of the transducer 7 is kept low, and when the school of fish approaches the sinker 1, the frequency of the transducer 7 is increased, thereby making it possible to timely control the dissipation of the fish attractant contained in the porous sintered metal 2 that constitutes the sinker 1 and suppress consumption of the fish attractant.

[0049] The transducer 7 may be configured to be in a stopped state before the fish detection sensor 9 detects a school of fish, and to start vibrating the transducer 7 when the fish detection sensor 9 detects a school of fish. By configuring it in this way, it is possible to effectively suppress consumption of the fish attractant.

[0050] The fishing sinker 1 may further contain a fish attractant in the holes 3 and / or through-holes 4 of the porous sintered metal 2. By containing a fish attractant in the holes 3 or through-holes 4 of the porous sintered metal 2, the fish-attracting ability of the fishing gear including the sinker 1 can be improved. Also, by impregnating the fishing gear with the fish attractant in advance, the time required to start fishing can be shortened.

[0051] Any substance capable of attracting fish may be used as a fish attractant, including, for example, krill, shrimp, squid, sardines, mackerel, bonito, bloodworms, blood worms, earthworms, salmon, salmon roe, short-necked clams, crabs, octopus, amino acids, fish sauce, fish sauce oil, etc. Two or more of these substances may also be used in combination. Krill, shrimp, squid, sardines, mackerel, bonito, bloodworms, blood worms, earthworms, salmon, salmon roe, short-necked clams, crabs, and octopus may be used raw, or may be fermented, aged, or decayed before use.

[0052] Although the above embodiment has been described with respect to a fishing sinker, the above content may also be applied to a fishing lure (jig). Both the sinker and the lure (jig) may have the same configuration as described above. Furthermore, other than the sinker or the lure (jig), the metal parts that make up the fishing tackle may also have the configuration according to the above embodiment. [Explanation of symbols]

[0053] 1 fishing sinker 2. Porous sintered metal 3 holes 4 through holes 7. Vibrator (piezoelectric diaphragm) 8. Power supply means (water current power generation device) 9 Fish detection sensor

Claims

1. A fishing sinker or lure comprising porous sintered metal, The fishing sinker or lure can be impregnated with a fish attractant in the holes or through-holes contained in the porous sintered metal.

2. 2. The fishing sinker or lure according to claim 1, wherein the porous sintered metal includes holes having a diameter of 0.1 mm or more and a depth of 0.1 mm or more.

3. 3. The fishing sinker or lure according to claim 1, wherein the porous sintered metal has through holes with a diameter of 0.1 mm or more.

4. A fishing sinker or lure as described in claim 1, 2 or 3, further comprising a vibrator positioned so as to impart vibration to the fishing sinker or lure, and the fish attractant in the hole or through-hole is dissipated by the vibration caused by the vibrator.

5. 5. A fishing sinker or lure according to claim 4, wherein the vibrator is a piezoelectric vibrating plate.

6. The fishing sinker or lure according to any one of claims 1 to 5, further comprising a power supply means for supplying power to the vibrator.

7. 7. A fishing sinker or lure according to claim 6, wherein said power supply means is a water current power generator that converts a water current into electricity.

8. The fishing sinker or lure according to any one of claims 1 to 7, further comprising a fish detection sensor electrically connected to the transducer.

9. 9. The fishing sinker or lure according to claim 8, wherein the frequency of the vibrator changes when the fish detection sensor detects a school of fish.

10. The fishing sinker or lure according to any one of claims 1 to 9, further comprising a fish attractant in the holes and the through-holes.

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