JP2000060370A - Internally threaded fishing rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an internally threaded fishing rod capable of reducing water taken into a rod pipe, improving an ability for repelling the water, avoiding the damages to both fishing line guide projections and fishing line, enabling the smooth unreeling and reeling of the fishing line, and improving productivity. SOLUTION: In this internally threaded fishing rod, fishing line guide projections G1 are integrally formed on the inner surface of the rod pipe R1 in a spiral or circular form. The cross-sectional shape of the fishing line guide projection G1 is an approximately rectangular trapezoid whose surface on the rod tip side is a surface 1c approximately rectangular to the inner surface of the rod pipe and whose surface on the rod butt side is a surface 1b sharply inclined to the inner surface of the rod pipe. At least the inclined surface 1b is formed as a water-repelling surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow fishing rod.

[0002]

2. Description of the Related Art In a conventional fishing rod provided with a fishing line guide on the outside of a rod tube, there is a tendency that troubles frequently occur due to the entanglement of the fishing line with the fishing line guide. On the other hand, the hollow fishing rod is configured so that the fishing line passes through the inside of the rod tube and does not cause the above-mentioned troubles in the conventional fishing rod, and thus has been widely used in recent years.

However, since the hollow fishing rod is one in which a fishing line is inserted into a hollow fishing rod to feed and wind the fishing line, friction of the fishing line with the inner peripheral surface of the fishing rod and winding of the fishing line. Water tends to be caught in the rod as it is taken. The water thus caught in the rod adheres the fishing line to the inner circumferential surface of the fishing rod, hinders smooth feeding and winding of the fishing line, and further increases the frictional resistance due to water between the fishing line and the inner circumferential surface of the fishing rod. The fishing line itself may be damaged due to the above.

As a solution to the above-mentioned problem, Japanese Patent Laid-Open No. Sho 56 has been published.
In Japanese Patent No. 127032, a groove for water repellency in the axial direction of a fishing rod is formed on a circumferential surface of a hard member having wear resistance.
It has been proposed to dispose a guide ring as a fishing line guide on the inner peripheral surface of the fishing rod, or to form a tetrafluoride polyethylene layer having excellent wear resistance and water repellency on the inner peripheral surface of the fishing rod (hereinafter, referred to as
"Prior art 1").

Since the fishing rod is formed in a conical shape in which the diameter becomes gradually smaller toward the tip of the rod, in order to dispose the guide ring on the inner circumferential surface of the fishing rod as in the prior art 1, the inner circumference of the fishing rod must be set. It is necessary to prepare a guide ring having a different outer shape according to the mounting position, and there is a problem in practicability in terms of complexity and fixing strength of the work of disposing the guide ring on the inner peripheral surface of the fishing rod.

On the other hand, as a measure for simplifying the work of forming a fishing line guide on the inner peripheral surface of a fishing rod, Japanese Utility Model Laid-Open No. 5-88259 discloses a release tape on the outer periphery of a cored bar in the axial direction of the cored bar. The prepreg as a fishing rod forming material is wound on it and fired to allow the prepreg to penetrate in the molten state between the mutually adjacent release tapes, and then,
It has been proposed to form a fishing line guide ridge of the same material as the prepreg on the inner peripheral surface of the fishing rod by cooling and solidifying the prepreg (hereinafter referred to as "Prior Art 2") and JP-A-7-39277. In the publication, ceramic yarn is wound around the outer periphery of the cored bar at intervals in the axial direction of the cored bar,
A fishing line guide protrusion made of ceramic yarn by winding a water-soluble film around a core metal between adjacent yarns, winding a prepreg on it, firing this, and melting the water-soluble film after removing the core metal. It has been proposed to form a strip on the inner peripheral surface of the fishing rod (hereinafter referred to as "prior art 3").

However, in the prior arts 2 and 3, the water caught in the fishing rod is likely to remain inside,
Further improvements were necessary to enable the smooth winding and unwinding of the fishing line.

Therefore, in order to solve the problems of the prior art 2 and the prior art 3, Japanese Patent Laid-Open No. 8-172980 discloses that the longitudinal section of the fishing line guide ridge has a trapezoidal shape having an arcuate portion at the upper side corner. (Hereinafter referred to as "Prior Art 4"), and Japanese Patent Application Laid-Open No. 9-74851 proposes that the longitudinal section of the fishing line guide ridge has a substantially isosceles triangular shape. (Hereinafter referred to as "Prior Art 5").

[0009]

However, in the prior art 4, since the upper side corner portion of the fishing line guide ridge on the rod tip side is formed in an arc shape, the water attached to the fishing line is squeezed by this. Without being caught, the water caught in this way collects between the fishing line guide ridges.
There is a possibility that the fishing line may reattach to this water and the fishing line may not be smoothly fed out and wound up.

Further, in the prior art 5, since the longitudinal section of the fishing line guide ridge is formed into a substantially isosceles triangular shape, the water adhering to the fishing line is laddered by this, as in the prior art 4. Without being touched, it was caught on the side of the rod, and the water thus caught could collect between the fishing line guide ridges, and the fishing line could reattach to this water, preventing smooth fishing line winding and winding. . Also, when fishing line is wound with a large tension applied when capturing a large prey, the top of the fishing line guide ridge is damaged by the fishing line, and conversely, the surface of the fishing line is projected by the top of this fishing line guide ridge. If the top of the fishing line guide ridge is damaged once, the smooth feeding and winding of the fishing line is significantly hindered, and the fishing line is also severely damaged, which may result in breakage of the fishing line. was there. In particular, fishing line with a damaged surface and P that has been widely used in recent years
A twisted line such as an E (polyethylene) line is easily caught on the top of the line guide ridge, which makes it difficult to smoothly feed and wind the line.

Further, in the prior art 4 and the prior art 5, the longitudinal section of the fishing line guide ridge is formed into a special shape such as a trapezoid having an arcuate portion at the upper side corner portion or a substantially isosceles triangular shape. , A special material such as a release tape having a side surface shape corresponding to this is required, and when the tension or winding interval changes when winding this around the core metal, the desired cross-sectional shape However, there was a problem in productivity.

The object of the present invention is to reduce the entrainment of water in the rod tube, improve the drainage performance of the entrained water, and avoid damage to both the fishing line guide ridge and the fishing line, An object of the present invention is to provide a hollow fishing rod that enables smooth feeding and winding, and that can improve productivity.

[0013]

In order to solve the above-mentioned problems, the present invention according to claim 1 integrates a fishing line guide ridge (G1, G2) in a spiral or annular shape on the inner surface of a rod pipe (R1). In the hollow fishing rod projecting from the above, the cross-sectional shape of the above-mentioned fishing line guide ridges (G1, G2) is such that the rod tip side is a plane (1c, 8c) substantially perpendicular to the rod tube inner surface, and the rod base side. Is a substantially right-angled trapezoid having an inclined surface (1b, 9a) having an acute angle with respect to the inner surface of the rod tube, and at least the inclined surface (1b, 9a) is formed as a water repellent surface.

According to a second aspect of the present invention, in the hollow fishing rod according to the first aspect, the fishing line guide ridge (G1) is water repellent on at least the inclined surface (1b) of the ridge body (1) having a substantially right trapezoidal shape. It is characterized by being applied.

According to a third aspect of the present invention, in the hollow fishing rod according to the first aspect, a water-repellent material (on the rod base side of the ridge body (8) in which the fishing line guide ridge (G2) is formed in a substantially rectangular shape ( 9)
Is attached to form an inclined surface (9a).

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A hollow fishing rod A according to a first embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

The hollow fishing rod A of the present invention includes a base rod R1 and
The tip rod tube R2 is joined to the inside of the tip portion thereof, and FIG. 1 shows a joining state of the original rod tube R1 and the tip rod tube R2. 1 and 2, the arrow F indicates the direction of the rod tip side of the hollow fishing rod A, and the arrow R indicates the direction of the rod base side thereof.

As shown in FIG. 1, a reinforcing winding 6 is provided inside the tip portion of the base rod tube R1 to reinforce the tip portion of the base rod tube R1. The rear end portion of the tip rod R2 is joined to the inside of the reinforcing winding 6. A guide ring 7 for guiding the fishing line L is attached to the inside of the rear edge of the tip rod R2.

A spiral fishing line guide ridge G1 is formed on the inner surface of the base rod 1a. Since FIG. 1 merely schematically shows the fishing line guide ridge G1, its detailed structure is not shown in FIG. 1, but the fishing line guide ridge G1 is not shown.
2 is, as shown in FIG. 2, a ridge body 1 made of a resin molded body.
And a fiber cord 2 embedded therein.

The ridge main body 1 has a substantially right-angled trapezoidal shape in a cross section taken along the length direction of the hollow fishing rod, and the upper side of the ridge main body 1, that is, the inner side of the main rod tube R1. The flat surface 1a is formed in the portion arranged at, the inclined surface 1b is formed at the end on the rod base side, and the vertical surface 1c is formed at the end on the rod tip side.

The flat surface 1 of the ridge body 1 having a substantially right-angled trapezoidal shape
Water repellent treatment is applied to a, the inclined surface 1b, and the vertical surface 1c. The water repellency treatment may be carried out by any specific means as long as it imparts water repellency to the flat surface 1a, the inclined surface 1b and the vertical surface 1c. For example, the rod may be provided inside the rod rod R1. Insert a thin nozzle from the original side to the rod tip side,
It is performed by ejecting the fluorine-based or silicone-based resin paint from the nozzle while pulling the nozzle toward the rod side.

The flat surface 1a has the function of reliably guiding the fishing line L in the base rod R1, while the inclined surface 1b has the fishing line L.
The water attached to the base rod R1 and flown into the base rod tube R1 has a function of flowing to the base side of the rod to improve drainage, and also has a flat surface 1a.
In the corner between the vertical surface 1c and the vertical surface 1c, the fishing line L is indicated by the arrow X in FIG.
When moving in the direction, the water droplets attached thereto are squeezed off to form a water pool on the side of the inclined surface 1b, which has the effect of preventing the water droplets from being further fed into the main rod tube R1. By removing the water droplets from the fishing line L in this way, the sliding resistance of the fishing line L with the fishing line guide ridge G1 can be reduced.

In view of the above-described drainage improving effect of the inclined surface 1b, the above-mentioned water repellent treatment may be performed on at least the inclined surface 1b, and the flat surface 1a and the vertical surface 1c need not necessarily be subjected to the water repellent treatment. Absent. However, if the flat surface 1a is also subjected to the water-repellent treatment, the sliding resistance of the fishing line L with the flat surface 1a can be further reduced.

In addition, the slanted surface 1b with respect to the inner surface of the base rod R1
The inclination angle is preferably in the range of 15 to 80 degrees, and more preferably about 45 degrees.

As will be described later, the ridge main body 1 is molded from a resin which is a part of a constituent element of a prepreg for forming a fishing rod main body used in a manufacturing process of a hollow fishing rod, while the fiber string 2 is Desirably, the yarn is formed by impregnating fibers such as carbon with a resin such as an epoxy resin.

As described above, if the ridge body 1 is molded from the resin which is a part of the constituent elements of the prepreg for forming the fishing rod body, the ridge body 1 as a whole, particularly the flat surface 1a and the vertical surface 1c. Elasticity can be imparted to the corners of the. That is, since the corner portion has elasticity in this way, the corner portion can effectively remove water droplets while elastically deforming following the movement of the fishing line L to improve water droplet removal efficiency. .

In the above-mentioned hollow fishing rod A, the fishing line guide ridge G1 has been described as being formed in a spiral shape on the inner surface of the base rod tube R1, but it may be formed in a ring shape. In this case, a plurality of rings are arranged on the inner surface of the base rod R1 at intervals in the length direction.

The above-mentioned source rod pipe R1 and / or the leading rod pipe R2
Each may be a single rod tube, or may be composed of a plurality of rod tubes joined together.

Next, a method of manufacturing the above-mentioned hollow fishing rod A of the present invention will be described below with reference to FIG.

The method for manufacturing the hollow fishing rod A of the present invention comprises a fiber string and peeling tape winding step, a prepreg winding step, a pressure firing step, and a core metal and peeling tape removing step.

The process of winding the fiber string and the release tape is shown in FIG.
As shown in FIG. 5, the fiber rod 2 and the peeling tape 5 are alternately wound around the core metal 4 for forming the fishing rod in a spiral shape.

The fiber string 2 is composed of a yarn obtained by twisting a plurality of fibers such as carbon and impregnating them with a resin such as an epoxy resin. Textile string 2
Is not limited to using such yarns,
A prepreg impregnated with a resin such that fibers such as carbon are crossed and cut into a string may be used.

As shown in FIG. 3, the peeling tape 5 has a substantially rectangular trapezoidal sectional shape. This peeling tape 5 is
Molded from a polyolefin-based resin or a fluorine-based resin that is not easily deformed by heating and has excellent releasability. A water-soluble tape formed of polyvinyl alcohol resin or the like may be used instead of the release tape made of these resins.

A space is formed between the fiber cord 2 and the peeling tape 5 after completion of the above-described fiber cord and peeling tape winding step.

In the prepreg winding step, as shown in FIG. 3, the prepreg 3 for forming the fishing rod main body is placed on the fiber string 2 and the peeling tape 5 which are thus wound around the outer peripheral surface of the core metal 4.
It is done by winding. The prepreg 3 described above is obtained by impregnating a fiber such as carbon with a resin such as an epoxy resin or a phenol resin.

The pressure firing step is performed by pressure firing the prepreg 3 described above. That is, when the prepreg 3 is pressure-fired, the melted part of the resin, which is a constituent element of the prepreg 3, penetrates into the periphery of the fiber string 2 and the space between the fiber string 2 and the peeling tape 5. When the molten resin is cured, the fishing line guide ridge G1 having a substantially rectangular trapezoidal vertical cross-sectional shape is spirally formed on the inner surface of the base rod R1.

The core metal and peeling tape removing step is carried out by first removing the core metal 4 and then removing the peeling tape 5 after the completion of the pressure baking step described above.

Next, a hollow fishing rod B according to a second embodiment of the present invention will be described below with reference to FIG. In addition, in FIG. 4, arrow F indicates the direction of the rod tip side of the intermediate fishing rod B, and arrow R indicates the direction of the rod base side thereof.

The hollow fishing rod B has a fishing line guide ridge G2.
Is composed of a ridge body 8 and a guide piece 9 made of a water-repellent material.
It is the same as the hollow fishing rod A according to the embodiment. Therefore, description of components other than the fishing line guide ridge G2 is omitted.

The fishing line guide ridge G2 is spirally formed on the inner surface of the base rod R1 as in the fishing line guide ridge G1 in the first embodiment. The fishing line guide ridge G2 is shown in FIG. As shown in FIG. 3, it is composed of a ridge body 8 and a guide piece 9.

The ridge body 8 is made of a resin molding having a rectangular vertical cross section, and the upper side portion of the ridge body, that is,
A flat surface 8a is provided on a portion arranged inward of the original rod R1.
However, a vertical surface 8b is formed at the end on the rod base side, and another vertical surface 8c is formed at the end on the rod tip side. A fiber string 2 is embedded in the ridge body 8.

The guide piece 9 is formed of a molded body containing a water-repellent material and having a vertical cross section of a substantially right-angled isosceles triangle, and its right-angled corner is perpendicular to the rod base side of the ridge body 8. Surface 8b
It is provided in close contact with the vertical surface 8b so as to be aligned with the lower end of the. Therefore, as shown in FIG.
The inclined surface 9a of the guide piece 9 connects the rod-side end of the flat surface 8a of the ridge body 8 to the inner surface of the original rod tube R1.

As the above-mentioned water-repellent material, a substance having poor wettability with water, for example, graphite fluoride, ethylene tetrafluoride, ethylene trifluoride chloride, silicone or the like is used.

The above-mentioned water-repellent material is uniformly dispersed in the guide piece 9. Therefore, as a composition for forming such a guide piece 9, a paint in which the fine powder of the water-repellent material is mixed in the cured resin, or the fine powder of the water-repellent material is dispersed in a volatile solvent together with a small amount of the binder. Used are an lacquer, an elastomer in which fine powder of a water-repellent material is dispersed in water together with a small amount of a binder.

In the fishing line guide ridge G2 composed of the ridge body 8 and the guide piece 9 as described above, the flat surface 8a of the ridge body 8 serves to reliably guide the fishing line in the main rod pipe R1. On the other hand, the inclined surface 9a of the guide piece 9 has a function of causing the water attached to the fishing line and caught in the rod rod R1 to flow toward the rod base side to improve drainage performance. The corners of the flat surface 8a of the strip body 8 and the vertical surface 8c on the rod tip side squeeze water droplets attached to the fishing line when the fishing line moves to the rod base side, forming a water pool on the inclined surface 9a side. , The above water droplet is the original rod tube R1
It has the effect of preventing further feeding into the interior of the. By removing the water droplets from the fishing line in this way, the sliding resistance of the fishing line with the fishing line guide ridge G2 can be reduced. Moreover, since the guide piece 9 is formed of the water-repellent material described above, excellent drainage is exhibited on the inclined surface 9a.

The inclination angle of the inclined surface 9a of the guide piece 9 with respect to the inner surface of the base rod R1 is preferably in the range of 15 to 80 degrees, and more preferably about 45 degrees.

As will be described later, the ridge main body 8 is molded from a resin which is a part of the constituent elements of the prepreg for forming the fishing rod main body used in the manufacturing process of the hollow fishing rod, while the fiber string 2 is Desirably, the yarn is formed by impregnating fibers such as carbon with a resin such as an epoxy resin.

As described above, if the ridge main body 8 is molded from resin which is a part of the constituent elements of the prepreg for forming the fishing rod main body, the entire ridge main body 8, especially the flat surface 8a and the rod tip side, can be formed. Elasticity can be imparted to the corner of the vertical surface 8c.
That is, since the corners have elasticity in this way,
The corner portion can effectively remove water droplets while elastically deforming in accordance with the movement of the fishing line to improve the water droplet removal efficiency.

In the above-mentioned hollow fishing rod B, the fishing line guide ridge G2 has been described as being formed in a spiral shape on the inner surface of the base rod tube R1, but it may be formed in a ring shape. In this case, a plurality of rings are arranged on the inner surface of the base rod R1 at intervals in the length direction.

Next, a method for manufacturing the above-mentioned hollow fishing rod B of the present invention will be described below with reference to FIG.

The method for producing the hollow fishing rod B of the present invention comprises a fiber string and peeling tape winding step, a prepreg winding step, a pressure firing step, a core metal and peeling tape removing step,
It consists of a guide piece forming step.

The process of winding the fiber string and the release tape is shown in FIG.
As shown in FIG. 5, the fiber rod 2 and the peeling tape 5 are alternately wound around the core metal 4 for forming the fishing rod in a spiral shape.

The fiber string 2 is composed of a yarn obtained by twisting a plurality of fibers such as carbon and impregnating them with a resin such as an epoxy resin. Textile string 2
Is not limited to using such yarns,
A prepreg impregnated with a resin such that fibers such as carbon are crossed and cut into a string may be used.

The peeling tape 5 has a rectangular cross-sectional shape, as shown in FIG. The peeling tape 5 is formed of a polyolefin resin or a fluorine resin which is hard to be deformed by heating and has excellent peelability. A water-soluble tape formed of polyvinyl alcohol resin or the like may be used instead of the release tape made of these resins.

A space is formed between the fiber cord 2 and the peeling tape 5 after the above-described fiber cord and peeling tape winding step is completed.

In the prepreg winding step, as shown in FIG. 5, the prepreg 3 for forming the fishing rod main body is placed on the fiber string 2 and the peeling tape 5 which are thus wound around the outer peripheral surface of the core metal 4.
It is done by winding. The prepreg 3 described above is obtained by impregnating a fiber such as carbon with a resin such as an epoxy resin or a phenol resin.

The pressure firing step is performed by pressure firing the prepreg 3 described above. That is, when the prepreg 3 is pressure-fired, the melted part of the resin, which is a constituent element of the prepreg 3, penetrates into the periphery of the fiber string 2 and the space between the fiber string 2 and the peeling tape 5. By curing the molten resin, the ridge main body 8 having a quadrangular vertical cross-sectional shape is spirally formed on the inner surface of the base rod R1.

The core metal and peeling tape removing step is performed by first removing the core metal 4 and then removing the peeling tape 5 after the completion of the pressure baking step described above.

In the guide piece forming step, the main rod tube R in which the ridge main body 8 having a rectangular vertical cross-sectional shape is formed in a spiral shape on the inner surface
In the state in which 1 is tilted so that the rod tip side is lower than the rod base side, while rotating this in the circumferential direction, the above-mentioned for forming the guide piece is formed inside the original rod tube R1 from the rod base side. It is carried out by injecting the composition and drying it.

That is, while the original rod tube R1 is inclined in this way, while rotating it in the circumferential direction, a coating material, a lacquer, which contains fine powder of a water-repellent material inside from the rod base side,
When the composition such as an elastomer is injected, the composition flows along the inner surface of the base rod tube R1 from the rod base side to the rod tip side. At this time, a part of the composition spirally flows toward the rod tip side along the vertical surface 8b on the rod side of the protruding main body 8 formed in a spiral shape, but most of the composition is on the rod side. After passing over the flat surface 8a of the ridge body 8, the ridge body 8 successively flows downward to the ridge body 8 side. Thus, when the composition flows on the inner surface of the base rod tube R1, the composition spirally stays in the corner between the vertical surface 8b on the rod base side of the ridge body 8 and the inner surface of the source rod tube R1. To do.

Here, when the composition is a coating material in which fine powder of a water-repellent material is mixed in the cured resin, the cured resin dries and cures in the state of staying in the corners, and the inclined surface 9a.
A guide piece 9 having is formed.

On the other hand, the composition is a lacquer in which a fine powder of a water repellent material is dispersed in a volatile solvent together with a small amount of a binder, or an elastomer in which a fine powder of the water repellent material is dispersed in water together with a small amount of a binder. In such a case, the volatile solvent or water volatilizes or evaporates from the composition staying in the corner, and the guide surface 9 having the inclined surface 9a is formed as described above.

The inclination angle of the inclined surface 9a of the guide piece 9 with respect to the inner surface of the base rod tube R1 substantially matches the inclination angle of the base rod tube R1 with respect to the horizontal line in the guide piece forming step described above. Therefore, in order to set the inclination angle of the inclined surface 9a within the range of 15 degrees to 80 degrees as described above, it is necessary to maintain the inclination angle of the original rod pipe R1 with respect to the horizontal line within the range of 15 degrees to 80 degrees. Good. Of course, in order to set the above-mentioned inclination angle of the inclined surface 9a to a more desirable value of about 45 degrees,
The inclination angle of the main rod R1 with respect to the horizontal line may be maintained at about 45 degrees.

[0064]

As described in claim 1, in the hollow fishing rod of the present invention, the cross-sectional shape of the fishing line guide ridge is such that the rod tip side is substantially perpendicular to the rod pipe inner surface, and the rod base is Since the side is formed into a substantially right-angled trapezoid with an inclined surface that is an acute angle to the inner surface of the rod pipe, the water that adheres to the fishing line to be wound up is formed by the angle between the substantially perpendicular surface of the fishing line guide ridge and the upper side. The amount of water caught in the rod can be minimized.
Further, since the fishing line to be wound is guided by the entire upper side of the fishing line guide ridge having a substantially right trapezoidal shape, even if a large load is applied to the fishing line, the fishing line will not be damaged and the surface will be damaged. Even a fishing line having irregularities on its surface, such as a PE or polyethylene (PE) line, can be smoothly guided. Further, since the rod base side of the fishing line guide ridge is formed on the inclined surface and the water repellent surface, the fishing rod bends when winding the fishing line, and the fishing rod tip is lowered when the fishing line is extended. By lowering to, the water that has been squeezed by the fishing line guide ridges on the rod base side of the fishing rod and accumulated at the rear portion is moved to the rod tip side, and thus drainage can be reliably performed. Moreover, if the fishing line guide ridge is formed in a spiral shape on the inner surface of the rod pipe, the water accumulated at the rear portion of the fishing line guide ridge can be discharged more smoothly in cooperation with the inclined surface on the rod base side. .

In the fishing rod according to claim 1, the method of claim 2
As described above, if water repellent treatment is applied to at least the inclined surface of the substantially rectangular trapezoidal protrusion main body of the fishing line guide protrusion, the amount of relatively expensive water repellent material used can be reduced, and the added value is high. An inexpensive fishing rod can be provided. Moreover, such a water-repellent treatment can be performed by a simple method such as spraying the paint containing a water-repellent material into the inside of the rod tube from the base side thereof, so that the manufacturing cost can be reduced. Can be reduced.

In the fishing rod according to claim 1, the method of claim 3
As described in, if the water-repellent material is attached to the rod side of the main body of the fishing line guide formed in a substantially rectangular shape to form an inclined surface, the cross section of the fishing line guide ridge has a special shape. Therefore, it is not necessary to prepare a release tape having a special shape, and the fishing line guide ridge can be easily formed in the rod pipe, which improves productivity. The inclined surface on the rod base side of the fishing line guide ridge is formed by adhering a water-repellent material to the rod tube. Can be formed by a simple process such as injecting a paint containing a water-repellent material from the rod base side and rotating it while rotating it downwards, thus greatly impairing workability. It is possible to increase the added value of products. Moreover, when the coating material containing the water-repellent material is injected as described above, the water-repellent material also adheres to the upper side of the fishing line guide ridge, so that the fishing line guiding function at this upper side can also be improved.

[Brief description of drawings]

FIG. 1 is a partial schematic cross-sectional view showing a hollow fishing rod according to a first embodiment of the present invention.

FIG. 2 is an enlarged partial cross-sectional view of the hollow fishing rod shown in FIG.

FIG. 3 is a partial schematic cross-sectional view showing a manufacturing process of the hollow fishing rod shown in FIG.

FIG. 4 is an enlarged partial cross-sectional view showing a hollow fishing rod according to the second embodiment of the present invention.

FIG. 5 is a partial schematic cross-sectional view showing a manufacturing process of the hollow fishing rod shown in FIG.

[Explanation of symbols]

A Medium fishing rod according to the first embodiment of the present invention B Medium fishing rod according to the second embodiment of the present invention R1 rod tube G1, G2 Fishing line guide ridges 1, 8 ridge body 1b, 9a inclined surface 1c, 8c Surfaces almost perpendicular 9 Water repellent material

Claims (3)

[Claims] 1. A middle-through fishing rod in which a fishing line guide ridge is integrally projected in a spiral or annular shape on the inner surface of the rod tube, wherein the cross-sectional shape of the fishing line guide ridge is the inner side of the rod tube. On the other hand, the middle fishing rod is characterized in that it has a substantially right-angled trapezoidal shape with a substantially right-angled surface and an inclined surface on the rod base side with an acute angle to the inner surface of the rod tube, and at least the inclined surface is formed as a water repellent surface. 2. The hollow fishing rod according to claim 1, wherein the fishing line guide ridge is formed by subjecting at least an inclined surface of a ridge body of a substantially right-angled trapezoid to a water repellent treatment. 3. The inclined surface is formed by adhering a water-repellent material to the rod base side of a ridge main body in which the fishing line guide ridge is formed in a substantially rectangular shape. Through fishing rod.