JPH04341133A - Line-passing fishing rod and its production - Google Patents

Abstract

PURPOSE:To obtain a rod material for a line-passing fishing rod having excellent slipperiness of a line passed through the rod without causing the damage of the line and the inner surface of the rod. CONSTITUTION:Guide rings 2 for guiding a passed line (a) and having an inner diameter smaller than the inner diameter of a rod member 7 are arranged in the rod member 7 over the whole length of the rod at regular spacings in a state protruding the small inner-diameter face from the inner surface of the rod. The guide ring 2 is made of a single fiber having high abrasion resistance.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threading rod having a guide annular body provided on the inner circumferential surface of the rod material for guiding an insertion thread, and a method for manufacturing the same.

0002

[Prior Art] Conventionally, to manufacture this type of threaded rod, highly abrasion-resistant glass fibers, etc. are bound together using an adhesive resin and a sizing agent, and the bundled strips are attached to a grooved mandrel. Separately form a helical guide annular body with elastic force by wrapping it around the groove and firing it, and insert this helical guide annular body with its diameter reduced into the inner circumferential surface of the rod material. The helical guide annular body was tightly attached to the inner peripheral surface of the rod material by elastic diameter expansion force. (Unexamined Japanese Patent Publication No. 1-304836).

0003

[Problem to be solved by the invention] In the above configuration,
To form the guide annular body, adhesive resin is used as a binder to bundle single fibers and form them into a single piece, so although the fibers themselves have high abrasion resistance, the surface of the binding strips The raised adhesive resin is not as abrasion resistant as the fibers, so the friction with the thread may wear away the resin and even damage the thread. was not fully demonstrated. Also,
In the manufacturing method, the guide annular body is fired in a spiral shape and then the helical guide annular body is attached to the inner peripheral surface of the rod material, so the process of forming the guide annular body and its process are simple. This involved two steps, one for attaching it to the inner peripheral surface of the rod material, and there was still room for improvement in terms of the manufacturing process. A first object of the present invention is to provide a guide annular body that can exhibit a stable guiding function over a long period of time by selecting a rational fiber form for the fibers of the guide annular body.

0004

[Means for Solving the Problems] A characteristic configuration according to the first invention is that a guide annular body having an inner diameter smaller than the inner circumferential surface of the rod material and for guiding the insertion thread is provided on the inner circumferential surface of the rod material over its entire length. The guide annular body is mounted in a state in which the small inner diameter surface protrudes from the inner circumferential surface while maintaining a distance therebetween, and the guide annular body is formed of a single fiber with high wear resistance, Its effects are as follows.

[0005]

[Operation] Since the thread is guided by the small inner diameter surface of the guide annular body that protrudes from the inner circumferential surface of the rod material, the chances of the thread coming into contact with the inner circumferential surface of the rod material can be reduced, and damage to the inner circumferential surface of the rod material can be reduced. In addition, since the guide annular body guides the yarn using only highly abrasion-resistant fibers, the guide annular body itself is less susceptible to wear and tear, and the yarn slides smoothly on the guide annular body surface. , the thread will not be damaged either.

[0006]

[Effects of the Invention] Therefore, since the thread has good slippage, the operating feeling when winding and letting out the thread is good, and even when the thread has water droplets attached to it, it does not stick to the inner peripheral surface of the rod material or the guide annular body. It rarely sticks. Since the guiding annular body is made of highly abrasion-resistant fiber, it can provide stable guiding function over a long period of time, and since there is less damage to the inner circumferential surface of the rod material, damage to the rod material can be avoided. Even if the guide annular body is damaged, it is possible to prevent the rod material from being completely separated. An object of the second invention is to propose a manufacturing method that can be manufactured efficiently by devising a process for bonding the guide annular body and the rod material.

[0007]

[Means for Solving the Problems] A characteristic configuration according to the second invention has a small inner diameter surface that protrudes from the inner circumferential surface of the rod material in a state where it is attached to the inner circumferential surface, and the inner circumferential surface In order to guide the fishing line inserted through the mandrel, a guide annular body made of a single fiber with high wear resistance is wrapped around the outer circumferential surface of the mandrel, and the outer circumferential surface of the guide annular body is reinforced in one direction. The method consists of laminating and firing a plurality of prepregs with aligned fibers, and its effects are as follows.

[0008]

[Operation] In other words, when the guide annular body is wrapped around a predetermined position on the mandrel using adhesive or the like, and multiple layers of prepreg are wrapped around the outer circumferential surface of the mandrel and fired as one body, the guide annular body and the innermost layer of prepreg are automatically bonded together. By welding, a rod material with a guide annular body can be manufactured.

[0009]

[Effects of the Invention] Therefore, the only step required before attaching the guide annular body to the inner peripheral surface of the rod material is the step of winding the guide annular body around the mandrel. There is no need for the process of firing the binding strips through an adhesive resin or the like, and then removing the binding strips from the mandrel and attaching them to the rod material, which simplifies the manufacturing process and allows for efficient production.

0010

EXAMPLE As shown in FIG. 2, a method of forming a rod using a mandrel 1 will be explained step by step. (2) As shown in FIG. 2B, a plurality of guide rings as guide annular bodies 2 are wound around the outer peripheral surface of the mandrel 1 at predetermined intervals along the axial direction of the mandrel 1. The guide ring 2 is made of a large diameter single fiber such as ceramic or boron (fiber diameter is 100 microns or more). (2) As shown in FIG. 2(c), a prepreg in which carbon-based reinforcing fibers are aligned in the circumferential direction is wound around the mandrel 1 as the first layer 3 over the entire length of the rod material. (2) As shown in FIG. 2(d), a prepreg made of carbon-based reinforcing fibers aligned in the axial direction is wound as the second layer 4 over the entire length of the rod material. (2) As shown in FIG. 2(e), a prepreg made of carbon-based reinforcing fibers aligned in the circumferential direction is wound as the third layer 5 over the entire length of the rod material. In order to wind each of the above-described layers around the mandrel 1, the prepreg is set on a surface plate, the mandrel 1 is placed on the prepreg, and the mandrel 1 is rotated together with the prepreg around its axis to form a winding. Next, as shown in FIG. 2(f), the forming tape 6 is wrapped around the entire length of the prepreg and fired to harden the prepreg.
A rod material 7 for the hollow rod A is formed. As shown in Figure 1,
In the state after firing, a part of the cross section of the guide ring 2 protrudes inward from the inner circumferential surface of the first layer prepreg 3, receives the insertion thread a, and the thread a contacts the inner circumferential surface of the first layer prepreg 3. Opportunities can be reduced.

[Another Embodiment] ■ As shown in FIG. 4, step portions 1a are provided at predetermined locations in the axial direction of the mandrel 1, and guide rings 2 are attached to each of the step portions 1a to ensure positioning. do it like this. (2) As shown in FIG. 5, the guide annular body 2 may be a spiral body. A stepped portion 1b is provided on the mandrel 1 in accordance with the spiral body 2, so that the spiral body 2 can be positioned reliably.

(■ As shown in Fig. 6, the spiral body 2 is pre-formed from a large-diameter single fiber such as boron, and the outer diameter of the spiral body 2 is reduced, and the inside of the rod material 7 is also formed by firing in advance.) The helical body 2 is inserted into the circumferential surface, and the helical body 2 is attached to the inner circumferential surface of the rod material by the elastic diameter expansion action of the helical body 2 itself. ■ As the guide annular body 2, other large diameter single fibers such as ceramics other than boron may be used. Good too.

[0012]Although reference numerals are written in the claims for convenience of comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

[Fig. 1] Vertical side view showing the state in which the guide annular body is attached to the inner peripheral surface of the rod.

[Figure 2] Configuration diagram showing the manufacturing process of a threaded rod

[Figure 3] Plan view showing the middle rod

[Fig. 4] A vertical cross-sectional side view showing another embodiment in which the guide annular body is attached to the inner peripheral surface of the rod.

[Fig. 5] A vertical sectional side view showing another embodiment in which a spirally formed guide annular body is integrally attached to the inner peripheral surface of the rod.

[Fig. 6] A vertical sectional side view showing another embodiment in which a spirally formed guide annular body is attached to the inner circumferential surface of a rod.

[Explanation of symbols]

1 Mandrel 2 Guide annular body 3 Prepreg 7 Rod material

Claims (2)

[Claims] Claim 1: A guide annular body (2) that has an inner diameter smaller than the inner peripheral surface of the rod material (7) and guides the insertion thread is attached to the rod material (7).
) with the small inner diameter surface protruding from the inner circumferential surface with a gap maintained over its entire length, and the guide annular body (2) is fitted with a highly wear-resistant single piece. A hollow rod made of a single fiber. 2. The fishing rod has a small inner diameter surface that protrudes beyond the inner circumferential surface when attached to the inner circumferential surface of the rod material (7), and is designed to guide a fishing line inserted through the inner circumferential surface. A guide annular body (2) made of a single fiber with high wear resistance is wrapped and attached to the outer peripheral surface of the mandrel (1), and the outer peripheral surface of the guide annular body (2) is reinforced in one direction. A method for manufacturing a hollow rod by laminating and firing a plurality of prepregs (3) with aligned fibers.