JPH019414Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention consists of a carbon sheet made by impregnating the tip of a fishing rod, specifically carbon fiber, with a synthetic resin and sloping in a tapered manner from the base end to the tip, and this sheet. This invention relates to a tip consisting of a semi-conical synthetic resin body attached to both the front and back sides of the head.

(Prior Art) Generally, the tip of a fishing rod is made of prepreg, which is made by impregnating carbon fiber with high strength and high modulus of elasticity with a synthetic resin.

By the way, the applicant of the present application first impregnated carbon fiber with a synthetic resin, and attached semi-conical synthetic resin bodies to both the front and back sides of a carbon sheet that is tapered from the base end to the tip. We have proposed a tip that has directionality in deflection and has greater damping of vibrations using the synthetic resin body.

(Problem that the invention aims to solve) However, in the case of this tip, the tension on the base side is too weak compared to the tension on the tip side, so the transmission of bending from the tip side to the base side is not successful.
If the tension on the tip side is weakened to improve the bending on the tip side, the tension on the base side becomes too weak and there is a problem that the base side bends too much. It was extremely difficult.

The present invention attempts to solve the problem of the previously proposed tip that the tension on the base side is too weak compared to the tension on the tip side, and the problem that it is difficult to maintain the overall tension at an appropriate level. , To increase the tension on the base side compared to the tension on the tip side with a simple structure of just providing a missing recess on the base side of the carbon sheet and using an adjusting core, and to make the overall tension appropriate. This made it possible to do so.

(Means for solving the problem) Therefore, the present invention involves impregnating carbon fiber with a synthetic resin, creating a carbon sheet that tapers in a tapered manner from the base end to the tip, and pasting the carbon fibers on both the front and back sides of the sheet. It is a solid tip consisting of a semi-conical synthetic resin body that is attached to the carbon sheet, and a missing recess is formed on the base side of the carbon sheet, and a synthetic resin is applied to the glass fiber or carbon fiber in the missing recess. It is fitted with an impregnated adjustment core.

(Function) An adjusting core body is fitted into the missing recess of the carbon sheet to increase the tension on the base side excluding the tip side, and the carbon sheet and the synthetic resin body are formed into a circular cross section to provide directional deflection. It is made to have.

(Example) Hereinafter, an example of the tip of the present invention will be described based on the drawings.

The tip of the present invention is made by impregnating carbon fiber with a synthetic resin, and includes a carbon sheet 1 that tapers in a tapered manner from the base end to the tip, and a semi-conical synthetic resin body that is attached to both the front and back sides of the carbon sheet 1. 2,2
and an adjustment core 3 made of glass fiber or carbon fiber impregnated with a synthetic resin, and a missing recess 12 is formed in the base side 11 of the carbon sheet 1, and the adjusting core is The body 3 was fitted to make the tension on the base side 11 stronger than the tension on the distal side 13.

Therefore, the illustrated embodiment uses two carbon sheets 1, 1, and these carbon sheets 1,
1 are respectively provided with missing recesses 12, 12 on the base side thereof, and substantially semi-conical fitting recesses 21, 21 corresponding to the missing recesses 12, 12 are provided on the inner surfaces of the synthetic resin bodies 2, 2. These fitting recesses 21,
21 and the missing recesses 12, 12 form a substantially conical cavity, and the adjustment core 3 is formed to a size corresponding to the cavity and is fitted into the cavity, and the adjustment core 3 is formed in a size corresponding to the cavity. A joint protrusion 31 having a smaller diameter than the large diameter part is protruded from the base end of the body 3 via the large diameter part 31a, and the joint protrusion 31 is joined to the tip of a hollow rod body (not shown). It's being accomplished very well.

In the above configuration, the carbon sheet 1
It is made by impregnating a synthetic resin into an aligned sheet of carbon fiber, which is lightweight, has high strength, and has a high modulus of elasticity. Further, as shown in Fig. 8, this carbon sheet 1 is made by overlapping a plurality of aligned sheets 1a, each having a thickness of about 0.1 m/m and having a recess on the proximal end, to form a sheet with a thickness of 1 m/m or less. The tip side of the carbon sheet 1 is tapered by shifting the tips of each of the alignment sheets 1a in steps in the length direction, as shown in FIG. That's what I do. In addition to forming two carbon sheets 1, one or three or more carbon sheets may be formed.

The adjusting core 3 is formed into a conical solid by impregnating aligned glass fibers with a synthetic resin, and the joint protrusion 31 is integrally provided at the base end of the adjusting core 3. The core body 3 is formed into a conical shape by polishing the outer peripheral surface of a cylindrical solid.
In addition, for example, it may be formed hollow. in this case,
For example, a sheet of glass fiber impregnated with a synthetic resin is wound into a cylindrical shape, and its outer peripheral surface is polished to form a conical shape.

Further, the synthetic resin bodies 2, 2 have low water absorption,
And, the heat resistance is 150℃ or higher, and the flexural modulus is 23℃.
Using polyether ether kent, which has a high weight of 38000 kg/cm ³ and has the property of easy paint adhesion, it is molded into a conical shape with the fitting recesses 21, 21 and holding pieces 23, 23 by extrusion molding or the like. It forms.

The synthetic resin used in the carbon sheet 1 is, for example, a thermosetting synthetic resin such as a phenolic resin, an epoxy resin, or a polyester resin, but other thermoplastic synthetic resins may also be used, or the synthetic resin described above may be used. It may be made of the same material as the bodies 2, 2. Moreover, the synthetic resin bodies 2, 2 are
It may be formed of the same material as the synthetic resin in the carbon sheet 1.

The carbon sheets 1, 1 are provided with a glass fiber impregnated with a synthetic resin on the surface facing the synthetic resin bodies 2, 2, and have a missing recess corresponding to the missing recess 12, 12. Preferably, a sheet (not shown) is attached. By doing so, the bonding strength between the carbon sheets 1, 1 and the synthetic resin bodies 2, 2 can be further increased.
In this case, the glass sheet is made by impregnating a synthetic resin into a woven, aligned, or non-woven glass fiber sheet having a lower modulus of elasticity than the carbon fiber, and making the glass thinner so that it can withstand a constant load. The carbon sheet 1 is made to bend more than the carbon sheet 1. Further, the synthetic resin in this glass sheet is made of the same material as the synthetic resin in the carbon sheet 1 or the synthetic resin body 2.
When the glass sheet and the synthetic resin in the carbon sheet 1 are in a semi-dry state with adhesive properties, the glass sheet is stacked on both the front and back surfaces of the carbon sheet 1. They are bonded together using the adhesive properties of the synthetic resin in the glass sheets. Note that the glass sheet is not necessarily required.

The tip of the present invention is constructed as described above, and the adjusting core body 3 is fitted into the missing recesses 12, 12 of the carbon sheets 1, 1, for example, as shown in FIG. 3 to the carbon sheets 1, 1, and synthetic resin bodies 2, 2 are brought into contact with both sides of the carbon sheets 1, 1,
the carbon sheet 1 in the adjustment core body 3;
The exposed portion from 1 is fitted into the fitting recesses 21, 21, and the joint protrusion 31 is fitted into the holding recesses 22, 22, and the adjusting core body 3 is attached to the synthetic resin bodies 2, 2 with adhesive. Furthermore, the synthetic resin bodies 2, 2 are bonded to the carbon sheets 1, 1, respectively, to form a solid body.

Then, cellophane tape is wrapped spirally around the outer circumference of this element to bind it, and it is heated and baked in a heating furnace, or
Alternatively, the carbon sheets 1, 1 are heated and fired by placing them in a mold having the same shape as the element body and applying pressure.
and harden the synthetic resin of the adjustment core body 3, and then,
The cellophane tape is peeled off, polished and painted.

In the case shown in FIG. 1, the fishing line guide 5 is fixed to the outer periphery of the tip formed as described above with a winding line, and the carbon sheets 1, 1, the adjusting core body 3, and the synthetic resin bodies 2, 2 are connected to each other. This further increases the strength of the bond between the two. The fishing line guide 5 is installed with its guide hole oriented toward the direction of deflection of the tip.

However, the tip formed as described above is mainly attached to the tip of a hollow rod body and used as a fishing rod for filefish and boat fishing, and is used as a fishing rod for filefish and boat fishing. After being bent, when the carbon sheet 1 vibrates up and down due to its high elastic modulus, this vibration is suppressed by the low elastic modulus synthetic resin bodies 2, 2 and attenuates in a short time. Therefore, the influence of the first hit on the next hit can be made very small, and the second and subsequent hits can be made very easy to understand.

Furthermore, the cross-sectional shapes of the carbon sheets 1, 1 and the synthetic resin bodies 2, 2 allow the deflection to have vertical directionality, making it easier to detect the hit.

In addition, when the tip of the tip is bent into an arched shape, such as when catching a hooked fish, an adjustment core body 3 is provided on the base side excluding the tip side 12 to make the tension on the base side stronger than the tension on the tip side, thereby increasing the overall tension. Since the tension is balanced, the bending of the tip side 13 can be increased, and when the bending of the tip side 13 exceeds a predetermined value, the bending of the tip side 13 is successfully transmitted to the base side 11. It is possible.

In addition, when a glass sheet is attached to the carbon sheets 1, 1, there is a carbon sheet 1 with a high elastic modulus in the center, a glass sheet with a lower elastic modulus than the carbon sheet 1 in the middle, and the outermost one is the carbon sheet 1 with a lower elastic modulus than the carbon sheet 1. Since the synthetic resin bodies 2, 2 with low elastic modulus are present, the difference in the amount of deflection between the carbon sheet 1, the glass sheet, and the synthetic resin bodies 2, 2 is small, so that the carbon sheet 1, the glass sheet, and the synthetic resin body 2,
This makes it possible to reliably prevent separation between the two parts due to the flexure.

In the embodiment described above, the carbon sheet 1 is provided with the missing recess 12, and the synthetic resin bodies 2, 2 are provided with the fitting recesses 21, 21, but the fitting recess 21 is provided in one of the synthetic resin bodies 2, 2. It may be provided only in the synthetic resin body, or both fitting recesses may be omitted. In this case, for example, the adjustment core 3 is formed to have a D-shaped cross section or a rectangular shape. Moreover, the shapes of the missing recess 12 and the fitting recess 21 are not particularly limited.

Furthermore, although glass fiber impregnated with a synthetic resin was used as the adjusting core 3, carbon fiber impregnated with a synthetic resin may also be used.

(Effects of the invention) As described above, the present invention consists of a carbon fiber impregnated with a synthetic resin, a carbon sheet that tapers from the base end to the tip, a semi-conical synthetic resin body, and a glass fiber or carbon sheet. By using an adjustment core made of fibers impregnated with synthetic resin, a missing recess was formed on the base side of the carbon sheet, and the adjusting core was fitted into the missing recess, so that the tension on the base side could be reduced. By making the tension stronger than the tension on the tip side, it is possible to balance the tension of the entire tip, and it is possible to improve the transmission of bending from the tip side to the base side.
Therefore, it is possible to provide a tip with good bending properties.

In addition, by setting the missing recess and the adjustment core in a predetermined structure, it is possible to easily form a tip with an overall balance, so it is possible to form a tip with a balanced overall tension at a low cost. be.

In addition, when the fish vibrates vertically due to the hit when the fish bites the bait, this vibration can be suppressed by the synthetic resin body with a low elastic modulus and damped in a short time, so that the first hit is The effect on the next hit can be made very small, and subsequent hits can be made very easy to understand.

Furthermore, the cross-sectional shapes of the carbon sheet and the synthetic resin body make it possible to give the deflection a vertical direction, thereby eliminating lateral vibration caused by waves or wind, and making it easier to see the hit. be.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example in which a fishing line guide is attached to the tip of the present invention, Fig. 2 is a partially enlarged perspective view showing an example of the tip of the present invention, Fig. 3 is a cross-sectional plan view of the same, and Fig. 4 is a longitudinal section of the same. Front view, Figure 5 is a cross-sectional view taken along the line shown in Figure 2, Figure 6 is a cross-sectional view taken along the line taken from Figure 2, Figure 7 is an exploded perspective view of only the proximal end, and Figure 8 is only the tip of the carbon sheet. FIG. 1... Carbon sheet, 12... Missing recess, 2
...Synthetic resin body, 3...Adjustment core body.

Claims (1)

[Scope of utility model registration request] It is a solid tip consisting of a carbon fiber impregnated with synthetic resin and tapered in a tapered manner from the base end to the tip, and a semi-conical synthetic resin body attached to both the front and back sides of this sheet. A tip of a fishing rod characterized in that a missing recess is formed on the base side of the carbon sheet, and an adjusting core body made of glass fiber or carbon fiber impregnated with a synthetic resin is fitted into the missing recess. .