JP2001231409A - Fishing for body and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fishing rod body having rigidity not to be excessively enlarged while retaining fixed thickness and to provide a method for producing the same. SOLUTION: This fishing rod body 1 is produced by firstly winding first prepreg sheets 21 to 23 having 40-80% resin content on a mandrel 100, then winding a second prepreg sheet 24 having 15-30% resin content on the outer periphery of the first prepreg sheets 21 to 23, further winding a phase film 31 on the second prepreg sheet to give a fishing rod material and baking the fishing rod 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 constituting a fishing rod used for fishing.

[0002]

2. Description of the Related Art A cylindrical rod body constituting a fishing rod is, for example,
It is manufactured by winding a fiber reinforced resin in which a synthetic resin is impregnated with a synthetic resin into a reinforcing fiber such as carbon fiber or glass fiber (generally called a “prepreg sheet”) around a core material and firing. The rod body of this fishing rod is required to have sufficient flexibility and a predetermined mechanical strength when a load is applied. Here, a certain thickness is required to maintain mechanical strength, and instead of simply winding one prepreg sheet around a core, several or several kinds of prepreg sheets are laminated. The rod body is manufactured.

[0003]

However, when a certain thickness is formed by laminating several or several types of prepreg sheets, the rigidity increases and the flexibility decreases.
When the rigidity is excessively increased and the flexibility is reduced, the operability of the fishing rod may be reduced. In particular, the small-diameter pole body located on the tip side needs to ensure sufficient flexibility so that it responds sensitively when a load is applied.

[0004] It is an object of the present invention to provide a rod body which does not excessively increase rigidity while maintaining a constant thickness, and a method of manufacturing the same.

[0005]

Means for Solving the Problems The rod according to Invention 1 is
A cylindrical rod body constituting a fishing rod used for fishing, wherein an inner layer of a first fiber reinforced resin in which a reinforcing fiber is impregnated with 40 to 80% of a synthetic resin, and a reinforcing fiber of 15 to 30% of a synthetic resin And an outer layer made of a second fiber-reinforced resin impregnated with the resin.

In this rod body, by forming the inner layer from the first fiber reinforced resin having a low reinforcing fiber content (the main material that greatly contributes to the rigidity is the reinforcing fibers in the fiber reinforced resin), the rigidity is excessively high. The required thickness can be secured without increasing the mechanical strength, and the mechanical strength can be maintained. Further, by providing the outer layer made of the second fiber reinforced resin having a relatively large reinforcing fiber content in addition to the inner layer, the rigidity of the rod body is also prevented from being significantly reduced.

[0007] The content of the synthetic resin used here is% by weight based on the whole fiber reinforced resin. A method for manufacturing a rod according to a second aspect of the present invention is a method for manufacturing a rod constituting a fishing rod used for fishing, and includes the following steps. Winding a first fiber reinforced resin sheet having a resin content of 40 to 80%.

A step of winding a second fiber reinforced resin sheet having a resin content of 15 to 30% around the outer periphery of the first fiber reinforced resin sheet. Baking the first fiber-reinforced resin sheet and the second fiber-reinforced resin sheet; In this method, 40 to 40
By laminating the first fiber reinforced resin sheet impregnated with 80% synthetic resin (that is, a fiber reinforced resin sheet having a relatively small content of reinforcing fiber), a sufficient wall thickness can be secured without excessively increasing rigidity. . On the other hand, the second fiber-reinforced resin sheet (a fiber-reinforced resin sheet having a relatively high content of reinforcing fiber)
By winding, the rigidity of the rod body is also prevented from being greatly reduced. Further, by laminating the first fiber-reinforced resin sheet and the second fiber-reinforced resin sheet while applying pressure, the synthetic resin moves from the first fiber-reinforced resin sheet to the second fiber-reinforced resin sheet, and the layers are separated from each other. The alignment adhesiveness is also sufficiently improved.

The first fiber having a relatively low reinforcing fiber content is used.
If the rod body is baked to form the rod body only with the fiber reinforced resin sheet, a problem of “furnace drop” occurs at the time of sintering. By winding (a fiber-reinforced resin sheet having a relatively large reinforcing fiber content), the problem of "furnace drop" can be solved.

[0010] The term "furnace drop" as used herein refers to a phenomenon in which, when a fiber reinforced resin sheet is wound around a core material and suspended and fired, the fiber reinforced resin sheet is shifted downward from the core material. . The method of manufacturing a rod according to a third aspect of the present invention is the method of the second aspect, further including a step of winding an outer peripheral protective tape around the outer periphery of the second fiber-reinforced resin sheet.

In this case, the degree of furnace drop can be further suppressed by wrapping the outer peripheral protective tape around the outer periphery of the second fiber reinforced resin sheet. The manufacturing method of the rod body according to the fourth aspect is the method according to the second or third aspect, further comprising a step of winding an inner circumferential protection tape around the outer periphery of the core material. In this case, the degree of the furnace drop can be further suppressed by winding the inner circumferential protective tape around the outer periphery of the core material.

[0012] The method for manufacturing a rod according to the invention 5 is described in the invention 3.
Or the method of 4, wherein the outer peripheral protective tape and / or the inner peripheral protective tape are polypropylene tapes, and have irregularities on the surface. In this case, by using a predetermined polypropylene tape, the degree of furnace drop can be further sufficiently suppressed.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a fishing rod composed of a rod body adopting one embodiment of the present invention includes a rod body 1 having a plurality of rod bodies connected to each other, and a rod base fixed to a rod base side end of the rod body 1. A grip 2, a front grip 3 fixed to the front end of the rod grip, a rod grip 2 and a front grip 3
And a reel sheet 4 which can be detachably fixed to the reel 5. As will be described in detail later, the rod body 1 is a tapered cylindrical member obtained by winding a sheet-shaped prepreg in which carbon fiber, glass fiber, titanium fiber, or the like is impregnated with a synthetic resin, and firing the mandrel. is there. The rod body 1 is provided with a fishing line inlet 6 for introducing the fishing line L from the reel 5 into the rod body 1. The fishing line L from the reel 5 is supplied from the fishing line inlet 6 to the rod body 1.
It is introduced into the inside and sequentially guided to the tip side, and is led out from the top guide 7 to the outside.

As shown in FIG. 2, the rod body 1 is a tapered cylindrical member and includes an inner layer 11 and an outer layer 12 laminated on the outer periphery of the inner layer 11. As described later, the inner layer 11 is formed of a first prepreg sheet in which a reinforcing fiber is impregnated with 40 to 80% of a synthetic resin. In addition, the outer layer 12 has 15 to 30 reinforced fibers.
% Of a second prepreg sheet impregnated with a synthetic resin. However, FIG. 2 schematically shows this, and they are fired and integrated as described later.

The rod 1 is manufactured as follows. First, as shown in FIG. 3, a releasing agent such as wax is applied as necessary to the outer periphery of a mandrel (core material) 100 which is a rod-shaped member having a tapered taper. Subsequently, the first prepreg sheets 21 to 23 are sequentially wound around the mandrel 100. The first prepreg sheets 21 to 23 are formed by processing a sheet obtained by impregnating a reinforcing fiber such as a glass fiber or a carbon fiber with a synthetic resin into a sheet shape. It is included. The first prepreg sheet 21 wound around the innermost layer on the mandrel 100 side has reinforcing fibers aligned in the circumferential direction of the mandrel 100, and the other first prepreg sheets 22 and 23 are in the longitudinal direction of the mandrel 100. In this case, a reinforcing fiber is used.

Subsequently, the first prepreg sheets 21 to 23
The second prepreg sheet 24 is wound around the outer periphery of the prepreg. Like the first prepreg sheets 21 to 23, the second prepreg sheet 24 is formed by processing a sheet obtained by impregnating a reinforcing fiber such as a glass fiber or a carbon fiber with a synthetic resin into a sheet. It is contained at a ratio of 15 to 30% by weight.

Further, a polypropylene tape called a phase film 31 is wound around the outer periphery of the second prepreg sheet 24. The phase film 31 is a film having irregularities on its surface due to its molding characteristics during the production of the polypropylene resin. Thus, the first prepreg sheets 21 to 23 and the second
The rod material is formed by winding the prepreg sheet 24 and the phase film 31. By winding the phase film 31 while applying pressure in this manner, between the first prepreg sheets 21 to 23 and the second prepreg sheet 24,
The synthetic resin moves from the first prepreg sheets 21 to 23 to the second prepreg sheet 24, and the alignment adhesion between the layers is sufficiently improved.

As shown in FIG. 4, the rod material thus obtained is fired while being suspended, and then the mandrel 1 is fired.
Then, the phase film 31 is peeled off. Then, both ends are cut to a desired length, the surface is polished smoothly, and the necessary coating is applied to manufacture the rod 1. In the rod body 1 manufactured in this way, by forming the inner layer 11 particularly from the first prepreg sheets 21 to 23 having a low reinforcing fiber content, the required wall thickness can be obtained without excessively increasing the rigidity of the rod body 1. And the required mechanical strength can be maintained.
Further, by providing the outer layer 12 made of the second prepreg sheet 24 having a relatively large reinforcing fiber content in addition to the inner layer 11, the rigidity of the rod body 1 is also prevented from being significantly reduced.

Here, if the rod body 1 is baked by using only the first prepreg sheets 21 to 23 having a relatively low reinforcing fiber content, a problem of "furnace drop" occurs during calcination,
Specifically, as shown in FIG. 4, a phenomenon in which the rod material slips downward by ΔA during firing may occur, but the resin content on the outer periphery of the first prepreg sheets 21 to 23 is 15 to 30%.
Second prepreg sheet 24 and phase film 31
The problem of "furnace drop" can also be solved by winding.

[Other Embodiments] (a) As shown in FIG. 5, a rod material may be formed by further winding a phase film 32 around the outer periphery of the mandrel 100. Further, it is also possible to manufacture the rod body 1 by using a slit tape made of a commonly used polypropylene or the like instead of the phase films 31 and 32. (B) The number of the first prepreg sheets 21 to 23 to be laminated can be arbitrarily set according to the diameter of the rod 1 to be manufactured. Further, the outer layer 12 may be configured by laminating a plurality of second prepreg sheets 24.

[0021]

According to the present invention, it is possible to provide a rod body which does not excessively increase rigidity while maintaining a constant thickness.

[Brief description of the drawings]

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

FIG. 2 is an enlarged view of the rod body 1 of FIG.

FIG. 3 is a view showing a manufacturing process of the rod body 1;

FIG. 4 is a view showing a manufacturing process of the rod body 1.

FIG. 5 is a view showing a manufacturing process of a rod body employing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod body 11 Inner layer 12 Outer layer 21-23 1st prepreg tape 24 2nd prepreg tape 31, 32 Phase film 100 Mandrel

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B019 AB12 AB22 4F100 AK01A AK01B BA02 DA11 DG01A DG01B DH01A DH01B EJ82A EJ82B EJ94 GB87 JB13A JB13B JK01 JK17 YY00A YY00B 4F205 HA03 HA03 HA23 HA03

Claims (5)

[Claims] 1. A tubular rod constituting a fishing rod used for fishing, comprising: an inner layer made of a first fiber reinforced resin in which reinforcing fibers are impregnated with 40 to 80% of a synthetic resin; A rod comprising an outer layer made of a second fiber-reinforced resin impregnated with 30% of a synthetic resin. 2. A method of manufacturing a rod body constituting a fishing rod used for fishing, comprising: winding a first fiber-reinforced resin sheet having a resin content of 40 to 80%; Resin content of 15
A method of manufacturing a rod body, comprising: winding a second fiber-reinforced resin sheet of about 30%, and firing the first fiber-reinforced resin sheet and the second fiber-reinforced resin sheet. 3. The method for manufacturing a rod body according to claim 2, further comprising a step of winding an outer peripheral protection tape around the outer periphery of the second fiber reinforced resin sheet. 4. The method of manufacturing a rod according to claim 2, further comprising a step of winding an inner circumferential protective tape around the outer periphery of the core material. 5. The method for manufacturing a rod body according to claim 3, wherein the outer peripheral protective tape and / or the inner peripheral protective tape are polypropylene tapes, and have irregularities on the surface.