JP3029472B2 - Manufacturing method of fishing rod and its fishing rod - Google Patents

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 fishing rod and a fishing rod, and more particularly to a technique for forming a leg receiving portion of a reel on an outer surface of a rod material.

[0002]

2. Description of the Related Art Conventionally, as a technique configured as described above, there is one disclosed in Japanese Utility Model Laid-Open Publication No. 1-168166. In this conventional example, a seat base having a leg receiving portion of a reel is used as a rod material. The original rod portion of the fishing rod is manufactured by the procedure of attaching the movable leg receiving portion after the external fitting and fixing.

[0003]

Here, considering the work of externally fixing the seat base to the rod material, in the prior art, the inner surface of the cylindrically formed sheet base is fixed by bonding to the outer surface of the rod material. Therefore, it is necessary to apply an adhesive during work. Regarding a rod material, a fishing rod material called a glass rod or a carbon rod is manufactured by sintering a sheet-shaped prepreg wound around a loose tapered core (mandrel). So, its outer surface is also a loose tapered surface,
In the rod material manufactured in this manner, if an error occurs in the cutting positions of both ends after the core metal is removed, the outer diameter value of the rod material at a predetermined position with respect to the end of the rod material is also determined. Due to errors, when trying to fix the seat base as described above, a gap is created between the inner surface of the seat base and the outer surface of the rod material, which may cause rattling, or the seat base may be fed to a predetermined position. There is a need for a technique for reliably forming the seat base at a fixed position on the outer surface of the rod material, which may cause the inability to fit. Therefore,
It is also conceivable to dispose a mold on the outer surface of the rod material and inject a resin between the mold and the rod material, that is, to directly form the leg receiving portion on the outer surface of the rod material by so-called injection means. However, since the rod material is formed by winding a sheet-shaped prepreg around a mandrel, the thickness of the overlapping portion of the prepreg becomes large after molding, and the outer shape of the prepreg is unlikely to be a perfect circle. Therefore, even if the mold is directly arranged on the outer surface of the rod material having such a shape, it is difficult to bring the mold and the rod material into close contact with each other, and the resin leaked from the mold after molding,
There is room for improvement, such as removal of burrs, which is troublesome. SUMMARY OF THE INVENTION An object of the present invention is to provide a method of manufacturing a fishing rod in which a leg receiving portion having a predetermined shape at a predetermined position of a rod material is formed reasonably and firmly, and to obtain the fishing rod rationally.

[0004]

According to a method of manufacturing a fishing rod of the present invention, an annular body (7) is externally fitted to an outer peripheral surface of a rod material (6) in a tightly fitted state, and the annular body (7) is fixed. A mold (8) disposed in close contact with the outer peripheral surface of the annular body (7);
The resin (P) is injected into a space defined between the rod material (6) and the outer surface of the rod material (6), and the leg receiving portion of the reel is formed integrally with the outer surface of the rod material (6). Further, a fishing rod of the present invention, the fitted fixed annular body closely fitted engagement state outside circumferential surface of the rod material (7), the outer peripheral surface of the rod material (6) and the ring
And a leg receiving portion of a reel integrally formed by injection molding with the body (7) . Further, the annular body (7)
Has a projection (7A) which engages with a groove (6A) formed in the rod material (6). The operation and effect of the present invention are as follows.

[0005]

When the above features are configured as shown in FIGS. 1 to 3, for example, when the seat bait 4 having the leg receiving portions 1 of the reel is formed on the rod material 6, the outer surface of the rod material 6 is The annular body 7 is externally fitted and fixed, and the dies 8, 8 are arranged on the outer surface of the annular body 7, so that the outer surface of the annular body 7 and the inner surfaces of the dies 8, 8 are in close contact with each other. Mold 8,
A resin injection space is formed between the outer surface of the rod material 6 and the rod material 6, and in this state, the resin P is injected into this space.
The sheet base 4 is formed in a form integrated with the rod material 6 in a state where the resin P injected from between the sheet base 4 and the resin material 8 does not flow out. In other words, in the present invention, by setting the outer diameter of the annular body 7 in advance so as to be in close contact with the inner surface of the mold 8, burrs are less likely to occur during molding, and the leg receiving portion is formed by molding. As described above, not only is the step of manufacturing the sheet base 4 as a separate body unnecessary, but also the step of applying an adhesive is not required. Thus, the leg receiving portion can be integrally formed with the rod material 6 in a state in which the outflow of water is suppressed. In particular, in the fishing rod of the present invention, the center of gravity of the seat base can be made to coincide with the axis of the rod by setting the shape of the annular body and the fixing position of the external fitting, and the balance of the rod can be improved.

[0006]

Accordingly, a method of manufacturing a fishing rod can be obtained in which a leg receiving portion having a predetermined shape at a predetermined position of a rod material is formed reasonably and firmly, and furthermore, it is not necessary to remove burrs at the time of manufacturing. It was. In particular, in the fishing rod of the present invention, the center of gravity of the seat base can be made to coincide with the axis of the rod by setting the shape of the annular body and the externally fixed position, and the balance of the rod can be improved. Play.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 shows a reel sheet S provided on the original rod R. The reel sheet S includes a fixed hood 1 as a leg receiving portion of the reel, and a movable hood 2 movable along the axis of the original rod. And a rocking member 3 of a swing operation type for positioning the movable hood 2, and these are provided on a seat base 4 integrally formed with the original rod R. The seat base 4 has a serrated holding surface 5 for holding the position of the lock member 3. This seat base is formed integrally with the outer surface of the original rod R using a resin material. The steps for forming the sheet base 4 on the rod material 6 of the original rod R are as follows.

That is, as shown in FIGS. 1 to 3, in this step, first, a pair of grooves 6A, 6A are formed at predetermined intervals on the outer surface of the rod material 6, and are engaged with the grooves 6A. An annular body 7 whose position is determined is externally fitted and fixed. The outer diameter of the annular body 7 is set to be equal to the inner diameter of a mold 8 described later, and the inner diameter is set so that no gap is formed between the annular body 7 and the outer surface of the rod material 6 in a state of being fitted to the rod material 6. The inner surface has a protrusion 7A that engages with the groove 6A, and is fitted and fixed by press fitting.

After the annular body 7 is externally fitted and fixed in this way, a pair of dies 8, 8 are placed in a state of being in close contact with the outer surface of the annular body 7.
And place them together. The dies 8 are divided into upper and lower halves, and the upper dies 8 shown in the upper part of FIG.
Is provided with a core member 9 for forming the engaging recess 1A of the fixed hood 1 so as to be slidable. Next, the sheet base 4 is formed on the outer surface of the rod material 6 by means of so-called injection molding, in which the thermoplastic resin P in a heated state is injected under pressure into the cavities (inner spaces) of the dies 8, 8. Then, after the core material 9 is slid in the extracting direction, the molds 8 and 8 are separated from each other, thereby completing the sheet base 4 forming step. Thereafter, the outer surface is subjected to a process such as painting and polishing. By attaching each of the movable hood 2 and the lock member 3, the reel sheet S is completed.

[Other Embodiments] The present invention provides, in addition to the above embodiment,
For example, it is also possible to configure and implement the following items. (A) As shown in FIG. 5, a small-diameter portion 6B is formed on the outer surface of the rod material 6 by a process such as grinding, and the annular body 7 is externally fitted only at one end position of the small-diameter portion 6B. The dies 8, 8 are brought into close contact with the outer surface of the annular body 7 and the outer surface of the small diameter portion 6B, and the resin P is injected to form the sheet base 4 in the same manner as described above. According to this method, the outer diameter of the small diameter portion 6B can be easily set to the inner diameter of the dies 8, 8. (B) As shown in FIG. 6, an annular body 7 is externally fitted and fixed to the outer surface of the rod material 6 at only one location in the same manner as in the above embodiment, and a mold is formed on the outer surface of the annular body 7 and the outer surface of the rod material 6. The sheet base 4 is formed by bringing resin 8 into close contact and injecting resin P.
In addition, according to this method, molding can be performed only by dimensional control at one place between the outer surface of the rod material 6 and the inner surfaces of the molds 8. (C) The annular body is fixed to the outer surface of the rod material using an adhesive. (D) In a rod material manufactured by firing a prepreg wound around a cored bar, a sheet base is formed as described above before the step of extracting the cored bar.
In the case where the sheet base is formed before the core metal is removed as described above, the rod material is not damaged by the injection pressure of the resin into the mold. (E) Glass resin, nylon fiber, etc. are included in the resin used for injection molding to form a resin with improved strength. (F) The structure of the reel sheet is configured to move the movable hood by screw feed.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side view of a state in which an annular member is externally fitted to a rod material.

FIG. 2 is a sectional view showing a state in which a mold is arranged.

FIG. 3 is a sectional view showing a state where a mold is separated.

FIG. 4 is a perspective view of a reel sheet.

FIG. 5 is a sectional view of another embodiment (a).

FIG. 6 is a sectional view of another embodiment (b).

[Explanation of symbols]

 6 Rod material 7 Annular body 8 Mold P resin

Claims (3)

(57) [Claims] A mold (8) having an annular body (7) tightly fitted on an outer surface of a rod material (6) in a tightly fitted state, and a mold (8) arranged in close contact with the outer surface of the annular body (7). The resin (P) is injected into a space defined between the annular body (7) and the outer surface of the rod material (6) to integrate the leg receiving portion of the reel with the outer surface of the rod material (6). The method of manufacturing the fishing rod to be formed. Wherein fitted in closely fitted engagement state outside circumferential surface of the rod material fixed annular body (7), injection molded on an outer surface and said annular body of said rod material (6) (7)
Fishing rod, characterized in that a leg receiving portion of the reel which is integrally formed by. 3. A fishing rod according to claim 2, wherein said annular body (7) has a groove (6) formed in a rod material (6).
A fishing rod having a projection (7A) engaging with A).