JP2000245307A - Fishing rod and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tip rod having a high quality. SOLUTION: An outer guide fishing rod wherein the tip rod comprises a solid pipe 1 and a hollow pipe 2. Therein, the reduced diameter portion 11 of the solid pipe 1 is inserted and bound to the hollow pipe 2, and an outer periphery-reinforcing layer 3 is formed on the outer periphery of the attaching and binding portion. The outer periphery-reinforcing layer 3 is formed by winding a reinforcing fiber prepreg on the outer periphery of the attaching and binding portion and then baking and curing the prepreg. Since the reinforcing fiber prepreg or reinforcing fiber tape is wound on the surface of the already cured solid pipe or hollow pipe, the outer periphery-reinforcing layer is surely and uniformly formed. In the production process, the dropping, and the like, of a matrix resin are not generated, and the whole body of the tip rod is uniformly formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing rod, and more particularly to a head rod and a method of manufacturing the same.

[0002]

2. Description of the Related Art In a fishing rod for an out guide, the tip of the head rod receives a large bending and is a portion to which a strong stress is applied, so that a sufficient strength is required. From the viewpoint of the strength of the head rod and the originally pursued weight reduction, it is desirable that the entire head rod be a hollow tube. However, due to restrictions on the hollow tube manufacturing method, there is a limit to reducing the diameter. is there. For this reason, those having a solid region in the tip region and a hollow tube in the rear region are often used.

[0003] However, as described above, the tip portion is a portion that bends and deforms greatly. Therefore, in general, when stress is concentrated in this region, breakage or cracks are easily generated. In particular,
Since the joint between the solid pipe and the hollow pipe is discontinuous, stress is easily concentrated, and therefore, the fracture or crack is apt to occur as described above. Therefore, a method of reinforcing the joint between the solid tube and the hollow tube has been developed. For example, Japanese Unexamined Utility Model Publication No. Sho 57-104876, Japanese Utility Model Publication No. Sho 63-29419, and Japanese Unexamined Patent Application Publication No. 8-279701 are known. In each case, a prepreg that becomes a hollow tube is wound around the end of a solid tube. It is fired and cured.

However, since a prepreg is wound around the outer periphery of a solid tube which has already been formed as a base tube and fired and hardened to form a hollow tube, the joint portion between the two is deformed before firing and during firing. The tube may be distorted. Further, during firing, the resin (for example, epoxy resin) may droop toward the solid pipe, or the resin may gather around the rod end and become solidified.
The spikes manufactured under such conditions are inferior in quality.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems. That is, an object of the present invention is to provide a high-quality head rod and a method for producing the same.

[0006]

Means for Solving the Problems The present inventors have conducted intensive studies on such problems, and as a result,
It has been found that the joint can be reinforced by firing the already formed solid tube and the already fired hollow tube material twice in a simple mounting state, and based on this finding, completed the present invention. Things.

That is, the present invention is (1) a fishing rod for an out guide, in which the head rod comprises a solid pipe and a hollow pipe, wherein the reduced diameter portion of the solid pipe is inserted into and connected to the hollow pipe. The present invention resides in a fishing rod in which a reinforcing fiber prepreg is wound around the outer periphery of the mounting joint portion, and an outer peripheral reinforcing layer formed by firing and curing is formed.

(2) An outguide fishing rod comprising a solid pipe and a hollow pipe, wherein a reduced diameter portion of the solid pipe is inserted into and connected to the hollow pipe. The present invention resides in a fishing rod in which a narrow reinforcing fiber tape is wound around the outer periphery of a mounting joint, and an outer peripheral reinforcing layer formed by firing and curing is formed.

Further, (3) the outgoing rod is a fishing rod for an out guide comprising a solid pipe and a hollow pipe, wherein a reduced diameter portion of the solid pipe is inserted and connected to the hollow pipe, The present invention relates to a fishing rod in which a narrow reinforcing fiber tape and a reinforcing fiber prepreg are wound on the outer periphery of the mounting joint portion and further formed with an outer peripheral reinforcing layer fired and cured thereon.

(4) The above (1), wherein the reduced diameter portion of the solid tube is inserted into the hollow tube via an adhesive.
(2) or (3) in the fishing rod.

Further, (5) the connecting portion exists in the swing type fishing rod according to the above (1) to (4), which is located behind half of the entire length of the tip rod.

(6) The above (1) to (1), wherein the elastic modulus of the hollow pipe is higher than the elastic modulus of the solid pipe and the outer peripheral reinforcing layer.
(4) exists in the fishing rod.

(7) The above (1) to (4), wherein the outer taper of the solid pipe is higher than the outer taper of the hollow pipe.
In the fishing rod.

(8) The fishing rod according to any one of the above items (1) to (4), wherein the hollow tube has a chamfered portion formed at an end thereof.

Also, (9) a method of manufacturing a head rod for an out-guide fishing rod including the following steps. 1) There is a step of preparing an already formed solid tube having a reduced diameter portion and a hollow tube material that has been already fired and formed. 2) Insert the reduced diameter portion of the solid tube into the hollow tube to perform both. 3) a step of winding a reinforcing fiber prepreg around the joint between the solid tube and the hollow tube; 4) a second firing of both the solid tube and the hollow tube in a state where the tubes are joined together A step of applying a first baking to the reinforcing fiber prepreg and baking and hardening to form an outer peripheral reinforcing layer by the reinforcing fiber prepreg,

The present invention also provides (10) a method for manufacturing a head rod of a fishing rod for an out-guide including the following steps. 1) a step of preparing an already formed solid tube having a reduced diameter portion and a previously fired hollow tube material; 2) inserting the reduced diameter portion of the solid tube into the hollow tube to join them together 3) a step of winding a reinforcing fiber prepreg around a joint between a solid pipe and a hollow pipe 4) a step of winding a reinforcing fiber prepreg and then further winding a reinforcing fiber tape; A second firing is performed on both pipes in a state where the actual pipe and the hollow pipe are combined, and a first firing is applied to the reinforcing fiber prepreg and the reinforcing fiber tape, and the resultant is fired and hardened, and an outer peripheral reinforcing layer is formed by the reinforcing fiber tape and the reinforcing fiber prepreg. Forming a,

The present invention also provides (11) a method of manufacturing a head rod for an out-guide fishing rod according to the above (9) or (10), wherein an adhesive is applied to the reduced diameter portion of the solid pipe before insertion. As long as the present invention meets this object, a configuration combining two or more selected from the above 1 to 8 is naturally possible.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fishing rod for an out guide according to the present invention will be described with reference to the drawings. FIG. 1 is an overall view of an out-guide fishing rod, and FIG. FIG. 3 schematically shows a joint (that is, a mounting joint) between the solid tube 1 and the hollow tube 2. Hereinafter, the mounting joint portion refers to a portion where the reinforcing fiber prepreg P or the reinforcing fiber tape T is wound and fired and cured to form the outer peripheral reinforcing layer 3 as described later.

[First Embodiment] A tip rod A of an out-guide fishing rod according to the present invention comprises a solid pipe 1 on a tip side and a hollow pipe 2 on a rod end side. The outer diameter of both the solid tube 1 and the hollow tube 2 gradually decreases as they go ahead, and is formed in a so-called tapered shape. A rear end portion which is a part of the solid pipe 1 is formed in a reduced diameter portion 11.
Is approximately the same as or slightly larger than the inner diameter D2 (see FIG. 4).

Since the length of the reduced diameter portion 11 affects the bending of the tip rod, it is necessary to take the balance of the entire length into consideration.
0 mm is preferred. The reduced diameter portion 11 of the solid pipe is inserted into the hollow pipe 2, and it is better to insert the solid pipe via an adhesive. Reinforcing fiber prepregs P are wound in several layers at the mounting joints of both tubes to form a thin outer peripheral reinforcing layer 3P (see FIG. 3B).

Here, the fiber direction by winding the reinforcing fiber prepreg P is preferably the rod axis direction from the viewpoint of securing strength against bending. The outer peripheral reinforcing layer 3P of the reinforcing fiber prepreg is formed by being wound so as to cover certain regions on both sides from the seam between the solid pipe 1 and the hollow pipe 2. The head rod A is formed by winding a reinforcing fiber prepreg P directly on the outer peripheral surface of a solid tube 1 already formed and a hollow tube material already fired, and further fired and hardened to form a thin outer reinforcing layer 3.
Since it is formed in P, the strength is improved, and at the same time, the movement of the floating guide and the like is smoothly performed during use.

By the way, the solid pipe 1 is thinner than the hollow pipe 2 but has a larger diameter because it is solid, so that it becomes larger in weight, and the solid pipe 1 exceeds half the total length of the spikestick, that is, the mounting joint portion is smaller. Preferably, it is located behind half of the total length of the tip rod. By doing so, at least the position where the weight balance is equal to or less than the front half and the stress concentration point comes before the mounting joint.

As a design of this case, for example, 1,0
If the rod A is 00 mm, the solid pipe 1 is 590 mm,
The hollow tube 2 has a length of 450 mm, and the length of the mounting connection portion between them (the length at which the outer peripheral reinforcing layer is formed) is 40 mm. Further, it is preferable that the elastic modulus of the hollow tube 2 be higher than that of the solid tube 1 and the outer peripheral reinforcing layer 3. By doing so,
The portion where the maximum bending point occurs in the region of the solid pipe 1 and where the stress is concentrated comes off from the mounting joint of both.

As a design of this case, for example, assuming that the elastic modulus of the hollow tube 2 is 30,000 to 44,000 kgf / mm ² , the elastic modulus of the solid tube 1 is 20,000 to 35,000.
Kgf / mm ^2, the modulus of elasticity of the peripheral reinforcing layer 3 formed on their outer circumference and 20,000~35,000Kgf / mm ^2. Further, by making the external taper degree of the solid pipe 1 higher than the external taper degree of the hollow pipe 2, a maximum bending point is generated in the region of the solid pipe 1 as in the case of the above-mentioned elastic modulus, and stress concentration is increased. It comes off from the attachment joint of both. As a design for this case,
For example, if the external taper of the solid pipe 1 is 4/1000, the external taper of the hollow pipe 2 is 2/1000.

[Second Embodiment] The tip rod A here is
Instead of the reinforcing fiber prepreg P of the first embodiment, the reinforcing fiber is wound and reinforced by using a narrow reinforcing fiber tape T (see FIG. 3A). Normally, the reinforcing fiber tape T is preferably one layered by a slight lap winding. The fiber direction by winding the narrow reinforcing fiber tape T is preferably substantially perpendicular to the rod axis. Also in this case, the outer peripheral reinforcing layer 3T made of the reinforcing fiber tape is formed by being wound so as to cover certain regions on both sides from the seam between the solid pipe 1 and the hollow pipe 2.

[Third Embodiment] The tip rod A here is
This is a case where both the narrow reinforcing fiber tape T and the reinforcing fiber prepreg P are used (see FIG. 3C). As in the second embodiment, after the narrow reinforcing fiber tape T is wound, the reinforcing fiber prepreg P as in the first embodiment is further wound to form a multilayer outer reinforcing layer 3TP. Are formed. In this case, the fiber direction by winding the narrow reinforcing fiber tape T is substantially circumferential, and the fiber direction by winding the reinforcing fiber prepreg P is substantially axial.
The outer peripheral reinforcing layers 3TP having different fiber directions are formed, and the strength in the bending and torsion directions is further enhanced.

[Other Embodiments] This is an example in which the shape of the joint between the solid pipe 1 and the hollow pipe 2 is different. Figure 6 shows a solid tube 1
2 shows a state before insertion of the hollow tube 2 into the tube. 7A and 7B show an outer peripheral reinforcing layer, in which FIG. 7A shows an outer peripheral reinforcing layer 3P made of a reinforcing fiber prepreg, and FIG.
The outer peripheral reinforcing layer 3TP by P and the reinforcing fiber tape 3T is shown. FIG. 8 is an enlarged view showing the state of the chamfered portion 21 at the end of the hollow tube 2, and FIG.
(B) shows the case of round processing.

FIG. 6 shows a state before the solid tube 1 and the hollow tube 2 are inserted. FIG. 7 shows an outer peripheral reinforcing layer 3P made of a reinforcing fiber prepreg, and an outer peripheral reinforcing layer 3TP made of a reinforcing fiber prepreg 3P and a reinforcing fiber tape 3T.
FIG. 8 is an enlarged view showing the state of the chamfered portion 21 at the end of the hollow tube 2 and shows the case of chamfering and rounding.

At the end of the hollow tube 2 (outer end periphery),
A corner 21 is provided. The chamfered portion 21 can be formed by chamfering or large rounding. If the hollow tube 2 has a vertical corner without forming the chamfered portion 21 at the end, when the tip rod is bent, the circumferential reinforcement layer may be broken by the corner. is there. Therefore, it is preferable to form a chamfer 21 at the end of the hollow tube 2 for safety.

On the other hand, if the corner 21 is provided,
There is also an advantage that the resin material is easily buried between the solid pipe and the resin material during firing and molding, and the resin material becomes uniform. By the way, regarding the solid pipe 1, the shoulder 11A, which is a portion whose diameter is gradually reduced,
As will be described later, since it is usually formed into a clear tapered shape by cutting, it is not necessary to dare to process the chamfered portion like the end of the hollow tube 2. However, in the case where the solid pipe 1 has no shoulder and has a corner, it is also preferable to form a chamfer.

Next, the manufacturing process of the tip of the fishing rod for an out guide (see FIG. 5) will be described. Here, the case of the third embodiment will be described as an example. Step 1) A step of preparing a solid tube having a reduced diameter portion 11 and a hollow tube which has been fired and hardened [FIG. 5 (A)]. The solid pipe 1 and the hollow pipe 2 used in the present invention are different from the above-mentioned conventional pipes, and the solid pipe 1 and the hollow pipe 2 used are already manufactured. That is, a molded solid tube and a fired hollow tube are used.
The rear end of the solid pipe is formed in the reduced diameter portion 11 by, for example, grinding or cutting. In this case, the shoulder 1 gradually reaching the reduced diameter portion 11
1A may be formed in a clear tapered shape.

Step 2) The reduced diameter portion 11 of the solid pipe is replaced with the hollow pipe 2
And joining the two (FIG. 5 (C)). As described above, the solid tube 1 has the reduced diameter portion 11 at the rear end, and the reduced diameter portion 11 is inserted into the hollow tube 2. In this case, the outer diameter of the reduced diameter portion 11 and the inner diameter of the hollow tube 2 are equal to the diameter of the reduced diameter portion 1.
1 is approximately the same as the inner diameter of the hollow tube 2 (scratch-slip, shrink-fit), or the outer diameter of the reduced diameter portion 11 is slightly larger than the inner diameter of the hollow tube 2 (shrink-fit).

In any case, before the solid tube 1 and the hollow tube 2 are joined, the adhesive R may be applied to the reduced diameter portion 11 and inserted (FIG. 5B). As the adhesive R, for example, a two-component epoxy resin or a two-component mixed type of a modified silicone resin and an epoxy resin is employed, and a material which is relatively flexible after curing is preferable. However, when both are tightly fitted, there is no problem even if the adhesive R is omitted.

Step 3) A step of winding the reinforcing fiber prepreg P and the narrow reinforcing fiber tape T around the joint between the solid pipe 1 and the hollow pipe 2 (FIG. 5 (F)). This step is a step of winding a reinforcing fiber prepreg P and a narrow reinforcing fiber tape T around the outer circumference of the solid pipe 1 and the hollow pipe 2 for reinforcement. In this step, a narrow reinforcing fiber tape T is wound around the surfaces of both the solid tube and the hollow tube that have already been cured (FIG. 5D → FIG. 5E). Reinforced fiber tape T
Is slightly overlapped to form a substantially single-layer first outer peripheral reinforcing layer 3T.
Is preferably formed. The area to be wound has a certain width on both sides from the joint between the solid pipe 1 and the hollow pipe 2. As described above, the fiber direction of the reinforcing fiber tape T here is:
The circumferential direction of the rod is preferred.

In this step, the reinforcing fiber tape T is formed by winding the reinforcing fiber tape T around the surfaces of both the solid tube and the hollow tube which have already been hardened. Turned. Next, after the outer peripheral reinforcing layer 3T made of the reinforcing fiber tape is further formed, the reinforcing fiber prepreg P is wound thereon to form the second outer peripheral reinforcing layer 3P (FIG. 5).
(F) → FIG. 5 (G)]. Reinforced fiber prepreg P here
Is preferably formed in two or three layers. As described above, the fiber direction of the reinforcing fiber prepreg P here is preferably the rod axis direction.

Step 4) A step of baking and hardening in a state where the solid pipe 1 and the hollow pipe 2 are joined together to harden and form the outer peripheral reinforcing layer 3TP by the reinforcing fiber tape T and the reinforcing fiber prepreg P [FIG. 5 (G)]. The outer peripheral reinforcing layer 3TP of the reinforcing fiber tape T and the reinforcing fiber prepreg P wound in the previous step is fired to solid pipe 1
And the outer peripheral reinforcing layer 3 which is hardened and fixed directly and integrally with the outer peripheral surface of the hollow tube 2. In this firing, usually, a solid tube having a small diameter is baked in a state of being suspended downward, but since the solid tube and the hollow tube are already made through firing, the hollow tube is hollow. The base material of the tube (eg, epoxy resin) does not drip on the surface of the solid tube.

In the method disclosed in Japanese Patent Application Laid-Open No. 8-279701, since the hollow tube is an unfired prepreg, the base resin (eg, epoxy resin) contained in the prepreg is located below. The solid pipe hangs down on the surface of the solid pipe and solidifies, or the connection between the solid pipe and the hollow pipe becomes uneven. The tip rod A on which the outer peripheral reinforcing layer 3TP is formed has the outer peripheral reinforcing layer 3
The final product is polished so that the surface of the TP becomes a uniform surface. However, after that, coloring (decoration) processing is performed as necessary.

By the way, in the above step 3, when only the reinforcing fiber tape T is wound without using the reinforcing fiber prepreg P, the outer peripheral reinforcing layer 3T of only the reinforcing fiber tape T as shown in FIG. Become a product with a head rod. In the above step 3, when only the reinforcing fiber prepreg P is wound without using the reinforcing fiber tape T, the outer peripheral reinforcing layer 3P of only the reinforcing fiber prepreg P as shown in FIG. Becomes Although the present invention has been described above, the present invention is not limited to the embodiments, and various modifications are possible as long as the objects are met.

[0039]

As described above, in the manufacturing process, sagging of the base material resin does not occur, and the entire tip rod is formed uniformly. Since the reinforcing fiber prepreg or the reinforcing fiber tape is wound around the surface of the solid pipe or the hollow pipe which has already been cured, the outer peripheral reinforcing layer is reliably and uniformly formed.

[Brief description of the drawings]

FIG. 1 is an overall view of an out-guide fishing rod.

FIG. 2 is a diagram showing the tip rod.

FIGS. 3A and 3B are views showing a region of an outer peripheral reinforcing layer of a spikestick, wherein FIG. 3A shows an outer peripheral reinforcing layer made of a reinforcing fiber tape, and FIG.
Shows an outer peripheral reinforcing layer made of a reinforcing fiber prepreg, and (C) shows an outer peripheral reinforcing layer made of a reinforcing fiber prepreg.

FIG. 4 is a diagram showing a relationship between an outer diameter of a solid pipe and an inner diameter of a hollow pipe.

FIG. 5 is a diagram showing each step in the production of the spike according to the present invention.

FIG. 6 shows a state before insertion of the solid pipe 1 and the hollow pipe 2;

7A and 7B show an outer peripheral reinforcing layer. FIG. 7A shows an outer peripheral reinforcing layer 3P made of a reinforcing fiber prepreg, and FIG. 7B shows an outer peripheral reinforcing layer 3TP made of a reinforcing fiber prepreg 3P and a reinforcing fiber tape 3T. Shown respectively.

FIG. 8 is an enlarged view showing a state of a chamfered portion 21 at the end of the hollow tube 2, wherein (A) shows a case of chamfering and (B) shows a case of rounding.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Solid pipe 11 ... Reduced diameter part 11A ... Shoulder part 2 ... Hollow pipe 21 ... Square part 3 ... Peripheral reinforcing layer 3P ... Peripheral reinforcing layer by reinforcing fiber prepreg 3T ... Peripheral reinforcing layer by reinforcing fiber tape 3TP ... Reinforcement Outer perimeter reinforcing layer made of fiber prepreg and reinforcing fiber tape A: Pilot rod R: Adhesive P: Reinforcing fiber prepreg T: Reinforcing fiber tape

Claims (11)

[Claims] 1. A fishing rod for an out guide having a head rod comprising a solid pipe and a hollow pipe, wherein a reduced diameter portion of the solid pipe is inserted and connected to the hollow pipe. A fishing rod comprising an outer peripheral reinforcing layer formed by winding a reinforcing fiber prepreg around the outer periphery and curing the same by firing. 2. A fishing rod for an out guide in which a head rod comprises a solid pipe and a hollow pipe, wherein a reduced diameter portion of the solid pipe is inserted and connected to the hollow pipe. A fishing rod comprising an outer peripheral reinforcing layer formed by winding a narrow reinforcing fiber tape around the outer periphery and firing and hardening the reinforcing fiber tape. 3. A fishing rod for an out guide, wherein a head rod comprises a solid pipe and a hollow pipe, wherein a reduced diameter portion of the solid pipe is inserted and connected to the hollow pipe. A fishing rod characterized in that a narrow reinforcing fiber tape is formed on an outer periphery thereof, and a reinforcing reinforcing fiber prepreg is further wound thereon to form an outer circumferential reinforcing layer which is fired and cured. 4. The solid tube according to claim 1, wherein the reduced diameter portion is inserted into the hollow tube via an adhesive.
The fishing rod described. 5. The swing-out fishing rod according to claim 1, wherein the joint portion is located rearward of a half of the total length of the tip rod. 6. The fishing rod according to claim 1, wherein the elastic modulus of the hollow pipe is higher than the elastic moduli of the solid pipe and the outer peripheral reinforcing layer. The fishing rod described. 7. The fishing rod according to claim 1, wherein the outer diameter of the solid pipe is higher than that of the hollow pipe. 8. The fishing rod according to claim 1, wherein a corner portion is formed at an end of the hollow tube. 9. A method of manufacturing a head rod for an out-guide fishing rod, comprising the following steps. 1) a step of preparing an already formed solid tube having a reduced diameter portion and a previously fired hollow tube material; 2) inserting the reduced diameter portion of the solid tube into the hollow tube to join them together 3) a step of winding a reinforcing fiber prepreg around a joint between the solid pipe and the hollow pipe; 4) a reinforcing step for the second firing of both pipes in a state where the solid pipe and the hollow pipe are joined together A step of applying a first baking to the fiber prepreg, baking and curing to form an outer peripheral reinforcing layer by a reinforcing fiber prepreg, 10. A method for manufacturing a head rod for an out-guide fishing rod, comprising the following steps. 1) a step of preparing an already formed solid tube having a reduced diameter portion and a previously fired hollow tube material; 2) inserting the reduced diameter portion of the solid tube into the hollow tube to join them together 3) a step of winding a reinforcing fiber prepreg around the joint between the solid pipe and the hollow pipe; 4) a step of winding the reinforcing fiber prepreg and further winding a reinforcing fiber tape; 5) In the state where the solid pipe and the hollow pipe are combined, the second firing is performed on both pipes. The first firing is applied to the reinforcing fiber prepreg and the reinforcing fiber tape, and the firing is hardened, and the outer periphery is reinforced by the reinforcing fiber tape and the reinforcing fiber prepreg. Forming a layer, 11. The method according to claim 9, wherein an adhesive is applied to the reduced diameter portion of the solid pipe before insertion.