JP2002320432A - Electric conductive fishing line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric conductive fishing line having a simple structure, easily producible, capable of repeatedly being used for a long period since it hardly has a line cut or deterioration even on repeated uses, further not being conspicuous in its appearance and not letting fishes escape. SOLUTION: This electric conductive fishing line is obtained by covering an insulating resin layer on the surface of an electric conductive fiber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a conductive fishing line.

[0002]

2. Description of the Related Art Conventionally, in sea fishing or river fishing,
A fish signal indicating that the fish has preyed on the bait is sensed through a fishing rod or by watching the movement of the float, and the fish is caught by matching. However, depending on the type of fish, it is often observed that the fish prey only on the bait and escape quickly, or when the fish are caught, the fish violently cuts off the fishing line and escapes. Therefore, regardless of the type of fish, considerable skill is required to catch the fish caught on the needle without dislodging.

[0003] Regardless of skill, a conductive fishing line in which a thin metal wire provided with an insulating layer is spirally wound around a fishing line has been proposed as a fishing tackle for catching a hooked fish (Japanese Patent Laid-Open No. 58-1983). -43728). According to the publication, at the moment when the fish signal is sensed, the fish is weakened by applying an electric shock to the fish by applying an electric shock through the conductive fishing line, and the fish can be fished without catching. I have.

[0004]

However, since the conductive fishing line has a complicated structure in which a metal wire is wound around the main line, the manufacturing process is not only complicated but also sufficiently thin. There was a problem that it could not be manufactured. Further, when used as a fishing line subjected to a tensile load, there is a problem that the thin metal wire is easily broken or deteriorated, and it is difficult to use repeatedly. Furthermore,
There was also a drawback that the fish escaped due to the metallic luster of the metallic wire.

An object of the present invention is to provide a conductive fishing line having a simple structure and easy to manufacture. Another object of the present invention is to provide a conductive fishing line that is hardly broken or deteriorated even when used repeatedly and can be used repeatedly for a long time. It is a further object of the present invention to provide a conductive fishing line that is inconspicuous in appearance and does not allow fish to escape.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a conductive fishing line in which a surface of a conductive resin fiber is coated with an insulating resin layer.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The conductive fishing line of the present invention comprises a conductive resin fiber as a core material and an insulating resin layer coated on the surface thereof. The number of conductive resin fibers serving as a core material may be one, or may be many. Further, the conductive fishing line of the present invention,
It can also be used in a state of plural bundles.

As the conductive resin fiber used as the core material, any known conductive resin fiber can be used. For example, a fiber obtained by spinning a conductive resin itself such as polyacetylene resin doped with iodine or arsenic pentafluoride is used. be able to.

Further, as the conductive resin fiber, a fiber obtained by spinning a conductive resin composition obtained by blending various conductive materials into a resin matrix can also be used. Regarding the resin that can be used as the matrix of the conductive resin composition, regardless of the thermoplastic resin and the thermosetting resin, use of the obtained fishing line (sea fishing, river fishing, mountain stream fishing, etc., the type of fish to be fished, etc.) It can be appropriately selected according to the conditions.

Examples of such a resin include polyethylene, polypropylene, polyethylene terephthalate, polyvinyl chloride, polyamide, polyimide, polyamideimide, ABS resin, polyester, polycarbonate,
Polyacetal, polyphenylene sulfide, polyphenylene ether, polysulfone, polyether sulfone, polyetherimide, polyetheretherketone, polyacrylonitrile, rayon, polyurethane,
Epoxy resins, unsaturated polyesters, vinyl ester resins, phenol resins, silicone resins, melamine resins and the like can be mentioned.

[0011] Among them, polyester, polyethylene, polypropylene, polyethylene terephthalate,
Preferred are polyetherimide, polyetheretherketone, polycarbonate, polyacrylonitrile, rayon, polyurethane and the like. Further, in order to ensure higher conductivity, it is preferable to use a conductive resin having conductivity itself.

There is no particular limitation on the conductive material that can be used in the conductive resin composition, and examples thereof include carbon black, tin oxide, antimony oxide, indium oxide, zinc oxide and indium zinc oxide. Metal oxides, metals such as gold, silver, copper, nickel, etc., various inorganic substances (titanate compounds such as potassium titanate, titanium dioxide, monoclinic titanium dioxide, calcium silicates such as wollastonite, zonotrite, etc.) Carbon black, tin oxide, antimony-doped tin oxide,
Examples thereof include ones coated with one or more conductive materials such as antimony oxide, indium oxide, zinc oxide, indium zinc-based oxide, and silver.

One kind of conductive material can be used alone or 2
More than one species can be used together. The shape of the conductive material is not particularly limited, and may be, for example, any of powder, fiber, sphere, plate, flake, and scale. The size of the conductive material is not particularly limited and can be appropriately selected from a wide range. Usually, the particle size is 0.01 to 100 μm, preferably 0.1 to 30 μm, and in the case of a plate, Thickness 0.01-30
μm, mean diameter of about 0.3 to 200 μm, as a fibrous material, a fiber diameter of 0.02 to 15 μm, preferably 0.2 to 5 μm, a fiber length of 0.1 to 300 μm, preferably 1 to 30 μm Can be illustrated.

These conductive materials preferably have a volume resistivity of less than 10 ² Ωcm, more preferably 10 ⁻⁸ to ⁸ Ωcm.
Those having a resistivity of 10 ⁻² Ωcm are preferably used.

Further, the amount of the conductive material used can be appropriately selected from a wide range according to the degree and shape of the conductivity of the conductive material itself, but usually 0.1 to 97% by weight of the total amount of the conductive resin composition. Preferably, it may be about 10 to 90% by weight.
Among known conductive resin compositions, it is preferable to use a transparent conductive resin composition in order to prevent the obtained conductive fishing line from being perceived by fish. As the transparent conductive resin composition, known ones can be used. For example, Japanese Patent No. 29781
No. 46, JP-A-2000-1634, JP-A-11-
No. 107160, JP-A-9-227743 and the like. In the conductive resin composition, in addition to the conductive material, various resin additives, for example,
One or more of a plasticizer, a stabilizer, an antioxidant, an ultraviolet absorber, an antistatic agent, a flame retardant, a colorant, a lubricant and the like may be contained. Further, a compound containing a surfactant or the like as a conductivity improver may be used.

For spinning the conductive resin composition, any of known methods such as a melt spinning method, a wet spinning method, and a dry spinning method can be employed. The thickness of the spun yarn is 0.01
繊 維 3 mm may be exemplified, and a plurality of these fibers may be bundled and used.

Examples of such a conductive resin composition spun include those described in JP-A-63-196717, Japanese Patent No. 2975921, and the like. The volume resistivity value of the conductive resin fiber portion is 1
0 ^{3-10 -3} Ωcm can be exemplified.

The resin constituting the insulating resin layer is not particularly limited. For example, polyethylene, polypropylene,
Examples thereof include thermoplastic resins such as polyethylene terephthalate, polyamide, aromatic polyamide, polyfluorovinylidene, polytetrafluoroethylene, vinylon, and thermoplastic polyurethane, and thermosetting resins such as polyurethane. Among them, thermoplastic resins such as polyethylene, polyamide, aromatic polyamide, polytetrafluoroethylene, and thermoplastic polyurethane are preferable. 1 for resin
The species can be used alone or, if necessary, two or more species can be used in combination. If necessary, add one of the common resin additives to the resin.
Species or two or more species can be blended. The thickness of the insulating resin layer is not particularly limited, but may be appropriately selected depending on the form of use of the obtained fishing line (sea fishing, river fishing, type of fish to be caught, etc.), but is usually 10 to 100 μm. Degree, preferably about 15 to 50 μm.

The insulating resin layer may be coated with one conductive resin fiber alone, or may be coated with a plurality of bundled conductive resin fibers. Further, a plurality of conductive resin fibers may be coated in such a manner that they do not come into contact with each other. May be coated.

The insulating resin layer can be used by covering the entire surface of the conductive resin fiber except for both ends. The coating is preferably performed so as to have a substantially uniform coating thickness. Both ends of the fiber can be used without being covered with an insulating resin layer for electrical connection with various elements such as connectors, various sensor electrodes, and light emitting elements. However, the exposed portions of the conductive resin at both ends are, for convenience in manufacturing, after once covering the entire surface of the conductive resin fiber with the insulating resin layer, the insulating resin layers at both ends are ground, peeled, melted, etc. It can be manufactured by removing by the means.

The conductive resin fiber provided with the insulating resin layer itself can be used as the conductive fishing line of the present invention, but a fiber obtained by twisting a plurality of such fibers is also suitable as the conductive fishing line of the present invention. Can be used. The thickness of the conductive fishing line of the present invention can be, for example, about 10 μm to 1 cm, and is usually about 100 μm to 5 mm.

The conductive fishing line of the present invention can be manufactured according to a known method. For example, the insulating resin layer may be formed by passing a conductive resin fiber through a die preheated to a predetermined temperature with hot air or the like, covering the insulating resin melted in advance, and cooling. By appropriately adjusting the diameter of the die, a conductive fishing line having a desired diameter can be manufactured. The preheating temperature of the die is not particularly limited, but may be appropriately selected so that the conductive resin composition and the insulating resin to be coated usually have appropriate fluidity and viscosity (particularly, do not cause dripping). I just need. In addition, according to a known method, the conductive resin composition and the insulating resin may be spun into a concentric core-sheath composite yarn.

In the conductive fishing line according to the present invention, one or more conductive resin fibers are exposed at one end, and a connector for connecting to an electric outlet is connected to the other end with the conductive resin fiber. It can be a conductive fishing line electrically connected. The connector may be configured to be mutually connectable with a connector provided on a fishing rod, a reel, or the like, and may be electrically connected to a power supply device, monitor equipment, or the like via the fishing rod or the reel.

The length of the exposed conductive resin fiber is not particularly limited, but is usually about 3 to 20 cm, preferably 5 to 20 cm.
It may be about 15 cm. The portions where the conductive resin fibers are exposed may be subjected to a metal coating treatment of gold, silver, copper, or the like, or a conductive metal oxide coating treatment of tin oxide, antimony-doped tin oxide, or the like. The treatment can be performed by, for example, electroplating, chemical plating, a melting method, a vacuum evaporation method, a coprecipitation method, or the like.

The conductive fishing line of the present invention is used for monitoring a change in electric resistivity around the hook and detecting a fish signal by tying at least one exposed portion of the conductive resin fiber to the hook. Can be used.

The conductive fishing line of the present invention has, for example, a plurality of groups of a plurality of conductive resin fibers bundled, and a group of conductive resin fibers is connected to a fishing hook, and another group of conductive resin fibers is connected. The fiber can be used by being exposed at a position slightly away from the hook. Here, one group of conductive resin fibers and another group of conductive resin fibers have different polarities, and when fishing is started, a distance between two electrodes taken out of each group of conductive resin fibers through a connector is set. May be monitored by an ammeter, and when the resistance value fluctuates due to the bite of the fish into the bait, the fish signal may be displayed to the angler by means of light, sound, or the like. In addition, when such a fish signal is detected, a larger current than usual is passed between the two electrodes by the operation of the angler or by a computer program connected to the ammeter and the power supply. You can also stun the fish and make it easier to catch.

Further, the operation of the fishing rod is performed by the robot, the fish signal detected by the conductive fishing line of the present invention is input to the computer, and the program is operated to operate the robot to automatically raise the fishing rod. It can be used as follows.

Further, electric power is supplied to a light-emitting body such as a light-emitting diode (LED), a sound wave generator, various sensors such as sound waves, infrared rays, or the like via the conductive fishing line of the present invention to the vicinity of the hook or the float, To collect fish by light or sound, or to detect fish schools using sensors. In each of the above embodiments, only one electrode or one group may be taken out through the connector, and the other electrode may be dropped on a seawater surface or the like as ground.

[0029]

EXAMPLES The present invention will be described below in detail with reference to Reference Examples and Examples, but the present invention is not limited thereto.

Reference Example 1 Calcium silicate fiber (wollastonite, average fiber length 2)
200 g (5 μm, average fiber diameter 0.77 μm) was dispersed in 4 liters of deionized water, and CO ₂ gas was bubbled into the dispersion at a flow rate of 100 ml / min with stirring at 70 ° C. for 20 hours. Processed. After treatment, 40 ° C
Cooled to 240 ml with concentrated nitric acid (67.5%)
Was added dropwise over 10 minutes, and the mixture was further stirred for 1 hour. The formed amorphous silica fiber was collected by filtration, washed with water, and then dehydrated and dried. The amorphous silica fiber has an average fiber length of 23 μm, an average fiber diameter of 0.77 μm, an average aspect ratio of 30, and a refractive index of 1.
It was 5.

250 g of the amorphous silica fiber obtained above
Was dispersed in 2.5 liters of deionized water, kept at 70 ° C., and a mixed hydrochloric acid solution of tin chloride and antimony chloride and a sodium hydroxide solution were dropped separately at the same time with stirring, and the pH was lowered.
Was maintained for about 3 hours, and the mixture was further stirred for 2 hours. The solid was collected by filtration, washed with water, dehydrated, dried at 110 ° C. for 10 hours, and further heated at 450 ° C. to produce a fibrous conductive powder. The 6,6-nylon pellets were melted by a twin-screw kneading extruder, and the fibrous conductive powder and a small amount of a surfactant were added from a side hopper to produce pellets of a transparent conductive resin composition. The amount of the fibrous conductive powder was 40% by weight based on the total weight of the transparent conductive resin composition.

Reference Example 2 The pellets of the transparent conductive resin composition obtained in Reference Example 1 were discharged from a spinning hole having two spinning holes by a kneading spinning machine, wound up at 4000 m / min, and wound at 25 denier / 2. A transparent conductive resin fiber of a filament was produced.

Example 1 The transparent conductive resin fiber of Reference Example 2 was immersed in a molten polyurethane resin, passed through a die made of a synthetic rubber plate having a hole of 70 μm in diameter, cooled, and insulated to a thickness of about 15 μm. A conductive fishing line having a conductive resin layer was manufactured.

Example 2 30 parts by weight of the transparent conductive resin composition of Reference Example 1 and 6,6
-70 parts by weight of nylon at 280 ° C and 2500 m so as to form a concentric core-sheath composite yarn having a cross-sectional area ratio of 20:80 (a core part is a transparent conductive resin fiber and a sheath part is an insulating resin layer).
Per minute and stretched 1.5 times at 210 ° C. to produce a 40 denier / 4f conductive fishing line.

[0035]

The fishing line of the present invention has a simple structure and is easy to manufacture, and is hardly broken or deteriorated by repeated use, and can be used repeatedly for a long period of time. Further, the fishing line of the present invention has an excellent effect that the fish are less noticeable in appearance and less escape from the fish.

Claims (3)

[Claims] 1. A conductive fishing line comprising a conductive resin fiber and a surface coated with an insulating resin layer. 2. The conductive fishing line according to claim 1, wherein the conductive resin fiber is a transparent conductive resin fiber. 3. The conductive resin fiber is exposed at one end,
3. The conductive fishing line according to claim 1, wherein a connector is attached to the other end.