JPH0965799A - Internally threaded fishing rod and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise the strength of a water repellent film on the inner peripheral surface of an internally threaded fishing rod. SOLUTION: This internally threaded fishing rod is obtained by knitting an abrasion-resistant wire 5 at ±10 and ±45 deg. angle to the shaft center of the rod material on the inner peripheral surface of the rod material 4, coating the knitted wire with a resin and forming a repellent film 6. The abrasion- resistant wire and the water repellent film are provided so as to make both nearly flush. Thereby, seawater, etc., is prevented from sticking to the inner surface of the rod with the water repellent film and a fishing line 2 is prevented from damaging the water repellent film with the abrasion-resistant wire.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hollow fishing rod and a method for manufacturing the fishing rod.

[0002]

2. Description of the Related Art Conventionally, as seen in Japanese Unexamined Patent Publication No. 4-341133 etc., a linear or annular fishing line guide made of a hard material such as ceramics or metal is provided on the inner peripheral surface of a rod material of a hollow fishing rod. Proposed to be provided. This fishing line guide is intended to reduce the frictional resistance between the fishing line and the inner circumferential surface of the rod.

Japanese Unexamined Patent Publication No. 7-115878 discloses a method of manufacturing a hollow fishing rod having such a fishing line guide. This consists of placing a resin inflow prevention material consisting of a mold release agent and a sealing agent around the fishing line guide mounted on the core metal, wrapping the fiber reinforced prepreg impregnated with synthetic resin from above, and hardening it by pressing and heating. To form a rod material, and then to pull out the core metal from the rod material and remove the resin inflow preventing material.

Further, as another means for reducing the frictional resistance between the fishing line and the inner peripheral surface of the rod, there are those disclosed in JP-A-3-10631 and JP-A-5-268858. These are directly coated with trifluoroethylene chloride resin on the inner surface of the rod material, or resin mixed with fluororesin particles of trifluoroethylene chloride or tetrafluoroethylene polymer on the inner surface of the rod material. It is intended to form a water-repellent treatment layer on the inner peripheral surface of the rod material by applying it, and the water-repellent treatment layer prevents water from adhering to smoothly feed the fishing line.

[0005]

However, Japanese Unexamined Patent Publication No.
In the case of the hollow fishing rod of Japanese Patent No. 341133 and Japanese Patent Laid-Open No. 7-115878, seawater is accumulated around the fishing line guide body protruding from the inner peripheral surface of the rod, and the accumulated seawater comes into contact with the fishing line when the tackle is introduced and its surface tension. Interferes with the release of the fishing line,
There is a problem that salt crystals caused by the evaporation of seawater damage the fishing line. Further, as shown in FIG. 4, since the fishing line guide body 1 is provided on the inner peripheral surface of the rod material 3 so as to intersect the axis of the rod at an angle of 90 degrees, the fishing line 2 is provided with the fishing line guide body 1. It becomes easy to bite into the fishing line guide body 1 by being crossed at a substantially right angle, and it becomes easy to cut and cut. In order to prevent this, it is conceivable to arrange the linear fishing line guide bodies 1 on the inner surface of the rod material 3 at a small pitch to increase the contact area between the fishing line 2 and the fishing line guide body 1, but to increase the linear lines. Causes a new problem of adversely affecting the degree of bending of the rod material 3 and increasing the weight of the rod.

[0006] Further, JP-A-3-10631 and JP-A-5-10631.
In the case of -268858, there is a problem that the water-repellent treatment layer is easily broken by contact with fishing line or the like and is inferior in durability. It is an object of the present invention to provide a hollow fishing rod and a method for manufacturing the fishing rod which can solve such a problem.

[0007]

In order to achieve the above object, the invention of claim 1 is such that the wear-resistant filament 5 is ± 10 ° with respect to the axial center of the rod material 4 on the inner peripheral surface of the rod material 4. Adopting a structure of a through-fishing rod which is formed by knitting at an angle of ± 45 ° and in which a coating film 6 made of a water-repellent solution or a water-repellent resin is formed so as to be substantially flush with the abrasion-resistant filament 5. According to the second aspect of the invention, the core metal 7 is coated with a coating agent made of a water-repellent solution or a water-repellent resin, and then the abrasion-resistant filament 5 is applied to the core 7a of the core 7 by ± Weaving at an angle of 10 ° to ± 45 °, and further wrapping the prepreg 9 from above to apply pressure.
The procedure of the method for manufacturing a fishing rod is used in which it is cured by heating and then the cored bar 7 is pulled out.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 3, in this hollow fishing rod, a wear resistant wire 5 is knitted on the inner peripheral surface of the rod material 4 at an angle of ± 10 ° to ± 45 ° with respect to the axis of the rod material 4. In addition, the water-repellent coating film 6 is formed so as to be substantially flush with the abrasion resistant filament 5.

The rod material 4 is formed by molding a prepreg obtained by impregnating reinforcing fibers with a synthetic resin into a pipe shape by heating and pressing. As the prepreg, for example, reinforcing fibers of high elasticity and high strength such as carbon, grafitite, boron, anodized, ceramics and metal impregnated with a thermoplastic or thermosetting synthetic resin are used.

The above-mentioned abrasion resistant filament 5 is made of ceramic, monofilament such as metal whose surface is hardened, twisted yarn of the monofilament,
It is composed of a yarn prepreg in which a twisted yarn is impregnated with a synthetic resin. As is clear from the comparison between FIG. 3 and FIG.
Since the abrasion resistant filament 5 is knitted at an angle of ± 10 ° to ± 45 ° with respect to the shaft center of the rod material 4, the contact area with the fishing line 2 guided in the shaft center direction of the rod material 4 (The hatched portion in the figure) becomes large, and the fishing line 2 smoothly slides on the abrasion-resistant filament 5 without biting into the abrasion-resistant filament 5.

The water-repellent coating film 6 is made of thermosetting resin particles containing silicon, PTFE (polytetrafluoroethylene) particles or a thermosetting resin containing silicon.
Thermosetting resin fine particles with PTFE or silicone,
It is formed of an arbitrary resin in which fine particles of PTFE are mixed. Since the water-repellent coating film 6 exists on the inner peripheral surface of the rod material 4, water or the like is less likely to adhere to the inner peripheral surface 4 a of the rod material 4. Further, since the water-repellent coating film 6 is provided so as to be substantially flush with the abrasion-resistant linear strip 5, the water-repellent coating film 6 is provided.
It is possible to prevent abrasion and damage.

Next, a method of manufacturing the hollow fishing rod will be described with reference to FIGS. First, a release agent layer 8 is applied and formed on the surface of the cored bar 7 by a conventional method as needed (FIG. 1A). A water-repellent coating agent is applied on the release agent layer 8 to form the water-repellent coating 6 (FIG. 1B). As the water-repellent coating agent, fine particles of thermosetting resin with silicon mixed with a solution of toluene, ligroin, or the like, PTFE
Fine particles mixed in a solution such as mineral spirit, or thermosetting resin itself with silicone, PTFE
Thermosetting resin fine particles with itself or silicon, PT
FE fine particles (particle diameter 0.3 to 4 μm) mixed in any resin can be used.

Next, the water-repellent coating film 6 applied to the cored bar 7.
As shown in FIG. 2, a wear-resistant wire 5 is provided on the outer periphery of the shaft 7a of the core 7
Knit at an angle of ± 10 ° to ± 45 ° (Fig. 1
C). This braiding can be done by a braiding machine.

The coating thickness of the water-repellent coating film 6 is preferably less than half the diameter of the abrasion-resistant wire wound around the outer periphery of the coating film. As a result, the abrasion resistance is improved as shown in FIG. 1D. The conductive filament 5 is embedded in the impregnating resin of the prepreg, and is reliably positioned and held by the rod material 4.

Then, a prepreg 9 is wound around the outer periphery of the abrasion resistant filament 5 (FIG. 1D). The prepreg 9 can be used in a sheet shape, a tape shape, or the like. Further, the reinforcing fibers may be drawn in one direction,
It may be woven vertically and horizontally. Such a prepreg 9 can be wound on the cored bar 7 so that the reinforcing fibers thereof are oriented in the axial direction 7a of the cored bar 7, the circumferential direction, etc., to form the rod material 4. Alternatively, a yarn prepreg obtained by impregnating a twisted yarn with a synthetic resin may be wound from above the abrasion-resistant linear member 5 by a filament winding method. Furthermore, mix the prepreg 9 of any of the above configurations,
Also, any of the winding methods may be combined to form the inner layer, the middle layer, and the outer layer of the rod material 4.

After the prepreg 9 is wound, a cellophane tape 10 or the like is wound around the outer periphery of the prepreg 9 by a conventional method to tighten the prepreg 9 (FIG. 1E). After that, the prepreg 9 is cured by pressurization and heating, and the cored bar 7 is pulled out and removed.
Further, the cellophane tape 10 and the like are peeled and removed from the surface of the prepreg 9, and the outer peripheral surface thereof is polished as needed, and a coating material is applied thereon to form a coating film. As a result, a finished product of the rod material 4 is obtained.

[0017]

According to the invention of claim 1, abrasion-resistant filaments are woven at an angle of ± 10 ° to ± 45 ° with respect to the axis of the rod material on the inner peripheral surface of the rod material, and Since the aqueous coating film was formed so as to be substantially flush with the abrasion-resistant filament,
The water drawn into the rod will immediately flow out of the rod, so that the resistance due to the surface tension of the water will not be added when the fishing line is released, and the fishing line, salt crystals of seawater, dust, etc. It is possible to prevent the fish from adhering to the fishing line, and to avoid damage to the fishing line. Further, it is possible to easily clean the rod after the actual fishing. Further, the contact area between the fishing line guided in the axial direction of the rod material and the line becomes large, and the fishing line slides smoothly inside the rod without cutting into the line. Further, since the water-repellent coating film is interposed between the abrasion-resistant filaments, contact with the fishing line is avoided, and abrasion and damage of the water-repellent coating film are prevented.

According to the invention of claim 2, a water-repellent coating agent is applied to the cored bar, and then a wear-resistant wire is formed on the outer periphery thereof at an angle of ± 10 ° to ± 45 ° with respect to the axis of the cored bar. Weaving with a prepreg, and then winding a prepreg around it and hardening it by pressing and heating, and then pulling out the core bar to obtain a hollow fishing rod. Can be easily and quickly formed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing each step of a method for manufacturing a hollow fishing rod according to the present invention.

FIG. 2 is an explanatory view showing an arrangement of wear-resistant filaments provided on a rod material.

FIG. 3 (A) is an explanatory view showing the positional relationship between the wear resistant filament and the fishing line, and FIG. 3 (B) is a sectional view taken along line BB in (A).

FIG. 4 shows an arrangement of wear-resistant filaments in a conventional fishing line fishing rod, (A) is an explanatory view showing a positional relationship between the abrasion-resistant filaments and the fishing line, and (B) is B- in (A). It is a B line sectional view.

[Explanation of symbols]

 4 ... Rod material 5 ... Abrasion resistant filament 6 ... Coating film 7 ... Core metal 7a ... Shaft center 9 ... Prepreg

Claims (2)

[Claims] 1. A coating made of a water-repellent solution or a water-repellent resin, in which abrasion-resistant filaments are woven at an angle of ± 10 ° to ± 45 ° with respect to the axis of the rod material on the inner peripheral surface of the rod material. A hollow fishing rod, wherein a film is formed so as to be substantially flush with the abrasion resistant filament. 2. A coating agent comprising a water-repellent solution or a water-repellent resin is applied to a core metal, and then a wear-resistant wire is formed on the core metal at an angle of ± 10 ° to ± 45 ° with respect to the axis of the core metal. A method for manufacturing a hollow fishing rod, characterized in that it is knitted with, and a prepreg is wound on it, cured by pressurizing and heating, and then the cored bar is pulled out.