JP2003144016A - Method for producing fishing rod body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a fishing rod body whose surface is easily smoothly treated. SOLUTION: This method for producing the fishing rod body constituting a fishing rod comprises a process for winding first prepregs 10, 11, 12 on a core material, a process for winding a second prepreg 13 on the outer peripheries of the first prepregs 10, 11, 12, and a process for spirally winding a protecting tape 20 on the outer periphery of the second prepreg 13 so that the protecting tape 20 is partially overlapped and laminated, wherein reinforcing fibers 34 contained in the second prepreg 13 are arranged in the axial direction of the core material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a rod body that constitutes a fishing rod.

[0002]

2. Description of the Related Art A fishing rod used for fishing is composed of a rod body which is a tapered cylindrical body, and a plurality of rod bodies are sequentially connected in a swing-out type or a continuous type to be used as one fishing rod. This rod body is generally produced by impregnating a reinforcing resin such as carbon fiber or glass fiber with a synthetic resin and processing a material called a prepreg into a sheet or tape, which is wound around a core material, and is manufactured by firing the core material. It Specifically, a prepreg is wound a plurality of times around a tapered cylindrical core material, and a protective tape is spirally wound around the outer circumference of the prepreg. afterwards,
This is fired in a furnace, the core material is pulled out, and then subjected to surface treatment or the like to manufacture.

In such a manufacturing method, in order to improve the bending rigidity of the rod body in the axial direction, a prepreg material in which reinforcing fibers are oriented in the axial direction is wound around a core material, and the rigidity in the crushing direction is further improved. In order to do so, a prepreg material in which reinforcing fibers are oriented in the circumferential direction may be wound around its outer circumference.

[0004]

However, when a fishing rod is manufactured in this manner, a protrusion made of synthetic resin containing reinforcing fibers is formed on the surface of the rod body after firing and removing the protective tape. Since the longitudinal direction of the protective tape and the circumferential direction of the core material are substantially the same, as shown in FIG. 7, the reinforcing fibers 35 oriented in the circumferential direction of the core material together with the synthetic resin protect tape 2
It is caused by entering the step 21 of the laminated portion of 0. The convex portion 40 thus formed usually has a height of 0.025 to 0.030 mm depending on the thickness of the protective tape, and in order to make the surface of the rod body smooth, surface treatment after firing is performed. Need to be removed by. However, since the reinforcing fibers 35 have entered the convex portions 40, it is difficult to remove them by surface treatment such as polishing. For this reason, in the past, the surface of the rod body was coated with a thick coating to smooth the unevenness of the rod body.

An object of the present invention is to provide a method for producing a rod body of a fishing rod, the surface of which can be treated smoothly.

[0006]

A method according to claim 1 is a method for manufacturing a rod body constituting a fishing rod, which comprises a step of winding a first prepreg around a core material, and a step of winding the first prepreg around an outer periphery of the first prepreg. The method includes a step of winding the second prepreg and a step of spirally winding the protective tape around the outer periphery of the second prepreg so as to partially overlap each other. The reinforcing fibers contained in the second prepreg are oriented in the direction intersecting the longitudinal direction of the protective tape.

In this method, the step formed in the laminated portion of the protective tape and the direction of the reinforcing fiber contained in the prepreg inside the protective tape intersect. Therefore, the reinforcing fibers are less likely to enter the step. Therefore, the convex portions formed on the surface of the rod body after firing almost contain no reinforcing fibers. As a result, it becomes possible to manufacture a rod body of a fishing rod which can be easily surface-treated such as polishing and can be smoothly treated.

The method according to claim 2 is the method according to claim 1, wherein the reinforcing fibers contained in the second prepreg are oriented in the axial direction of the core material. In this method, the step formed in the laminated portion of the protective tape is generated substantially in the circumferential direction of the core material, whereas the reinforcing fibers contained in the prepreg inside the protective tape are oriented in the axial direction of the core material. For this reason, the reinforcing fibers are less likely to enter the step. As a result, it becomes possible to manufacture a rod body of a fishing rod which can be easily surface-treated such as polishing and can be smoothly treated.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION [Structure of Whole Fishing Rod] As shown in FIG. 1, a fishing rod adopting an embodiment of the present invention has a cylindrical base rod 1 and a squirting type on the tip side of the base rod 1 sequentially. And a plurality of cylindrical middle rods 2 and 3 connected to each other and a tip rod 4 connected to the tip side of the middle rod 3. Each of these rod bodies is made of a prepreg material obtained by impregnating reinforcing fibers such as carbon fibers and glass fibers with a synthetic resin.

A butt plug 9 is detachably fitted to the end of the base rod 1 on the rod base side, and a reel seat 5 on which a reel is detachably mountable is provided on the peripheral surface. A fishing line introducing port 6 for introducing the fishing line from the reel into the rod body is formed on the tip end side peripheral surface of the reel sheet 5 of the base rod 1, and the fishing line is guided to the fishing line introducing port 6 on the peripheral surface thereof. A fishing line introduction guide 7 for arranging is provided. In addition, a fishing line path through which a fishing line is inserted is formed in the rod body from the middle rod 2 to the tip rod 4, and a top guide 8 is connected to a tip side end portion of the tip rod 4. The fishing line from the reel is inserted into the rod body from the fishing line introducing port 6 via the fishing line introducing guide 7, is sequentially guided to the tip side, and is guided to the outside from the top guide 8.

[Method for Manufacturing Medium Rod 2] Next, a method for manufacturing the rod body will be described for the medium rod 2. First, as shown in FIG. 2, a tapered rod-shaped mandrel (core material) 100 is prepared, and a mold release agent is applied to the peripheral surface as necessary. Then, the prepreg tape 1 processed into a tape shape on the mandrel 100
0 is spirally wound with no space. Prepreg tape 10
Is one in which reinforcing fibers such as carbon fibers or glass fibers are aligned and impregnated with a synthetic resin such as an epoxy resin. Particularly, in the prepreg tape 10, the reinforcing fibers are oriented in the longitudinal direction of the tape (the circumferential direction of the mandrel 100).

Next, the sheet-shaped prepreg 11 is wound around the outer periphery of the prepreg tape 10. This prepreg 11
The reinforcing fibers are oriented in the axial direction. Then, FIG.
As shown in, the sheet-shaped prepreg 12 is replaced with the prepreg 1
Wrap around the outer circumference of 1. In the prepreg 12, the reinforcing fibers are oriented in the circumferential direction. In this way, after the first prepreg from the prepreg tape 10 to the prepreg 12 is wound around the mandrel 100, the sheet-shaped second prepreg 13 is further wound around the outer periphery of the prepreg 12 as shown in FIG. The reinforcing fibers of the second prepreg 13 are oriented in the axial direction. The second prepreg 13 has a thickness of 0.0 from the viewpoint of weight reduction of the rod body and easy surface treatment.
It is good to set it to 5 mm or less. Finally, as shown in FIG. 5, a protective tape 20 made of polypropylene or the like is spirally wound around the outer periphery of the second prepreg 13 so that a part thereof is laminated. This is fired in a furnace to integrate the prepregs. After that, the mandrel 100 is pulled out, the protective tape is peeled off, and both ends are cut into a required length and surface treatment is performed.

According to this manufacturing method, reinforcing fibers are laminated on the prepreg after firing as shown in FIG. Here, the reinforcing fibers 31, 33 are oriented in the circumferential direction of the mandrel 100, and the reinforcing fibers 32, 34 are arranged in the mandrel 10.
It is oriented in the 0 axial direction. Since the protective tape 20 is wound around the mandrel 100 in a spiral shape, the step 21 generated in the laminated portion of the protective tape 20 has the mandrel 100.
Occurs approximately in the circumferential direction. On the other hand, the reinforcing fibers 34 included in the outermost layer of the prepreg inside the protective tape 20 are oriented in the axial direction of the mandrel 100. For this reason, the reinforcing fibers 34 are less likely to enter the step 21, and the convex portions 40 formed on the surface of the rod body after firing hardly include the reinforcing fibers and are substantially composed of the resin layer. Therefore, during the surface treatment, the convex portion 40 can be easily polished, and the surface can be easily smoothed. This makes it possible to reduce the thickness of the paint film that was conventionally thickly applied to make the surface smooth. It is also possible to perform surface treatment that makes the best use of the texture of the material, such as buffing without painting. Furthermore, when a metal thin film is formed on the surface of the rod body by a metal vapor deposition method such as an ion plating method,
In order to make the vapor-deposited metal thin film more beautiful, the surface of the rod, which is the base, is made to be a mirror surface. Conventionally, a treatment for forming a resin layer on the surface of the prepreg layer has been performed in order to facilitate mirroring. Since the surface of the rod body obtained by the rod body manufacturing method according to the present embodiment can be easily smoothed, the surface of the rod body after firing can be easily mirror-finished. Therefore, it is possible to form a metal thin film having a beautiful gloss without performing a process of further forming a resin layer.

[Other Embodiments] (a) In the above-mentioned embodiment, the swing type rod body is described, but it is also applicable to a parallel type rod body. (B) In the above embodiment, the case where the prepregs 10 to 12 are wound inside as the first prepreg has been described, but the first prepreg is not limited to this, and the number of times the prepreg is wound is not limited to this. May be increased or decreased. The wound prepreg may have a sheet shape or a tape shape.

[0015]

In the method for manufacturing a rod body according to the present invention, the step formed in the laminated portion of the protective tape and the direction of the reinforcing fiber contained in the prepreg inside the protective tape intersect. Therefore, the reinforcing fibers are less likely to enter the step. Therefore, the convex portions formed on the surface of the rod body after firing almost contain no reinforcing fibers. As a result, it becomes possible to manufacture a rod body of a fishing rod which can be easily surface-treated such as polishing and can be smoothly treated.

[Brief description of drawings]

FIG. 1 is an overall view of a fishing rod adopting an embodiment of the present invention.

FIG. 2 is a view showing a manufacturing process of the inner rod 2 of FIG.

FIG. 3 is a diagram showing a manufacturing process of the inner rod 2 of FIG.

FIG. 4 is a view showing a manufacturing process of the inner rod 2 of FIG.

5 is a diagram showing a manufacturing process of the inner rod 2 of FIG. 1. FIG.

FIG. 6 is a schematic view of a vertical cross section of the middle rod 2 according to the manufacturing method of the present invention.

FIG. 7 is a schematic view of a longitudinal section of a rod body manufactured by a conventional manufacturing method.

[Explanation of symbols]

2 middle pole 10-12 First prepreg 13 Second prepreg 20 protective tape 34 Reinforcing fibers contained in the second prepreg 100 mandrels

Claims (2)

[Claims] 1. A method of manufacturing a rod body constituting a fishing rod, the method comprising: winding a first prepreg around a core material; winding a second prepreg around an outer periphery of the first prepreg; A step of spirally winding the protective tape around the outer periphery of the second prepreg so that the protective tape partially overlaps and is laminated, and the reinforcing fibers contained in the second prepreg are arranged in a direction intersecting the longitudinal direction of the protective tape. A method of manufacturing a rod, which is oriented. 2. The method for producing a rod body according to claim 1, wherein the reinforcing fibers contained in the second prepreg are oriented in the axial direction of the core material.