JP3029471B2 - Manufacturing method of fishing rod and its fishing rod - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method of manufacturing a fishing rod and its
More specifically, the present invention relates to a technique for forming a seat base for forming a reel seat on a fishing rod.

[0002]

2. Description of the Related Art Conventionally, as a technique configured as described above, there is a technique disclosed in Japanese Utility Model Laid-Open Publication No. 1-168166. In this conventional example, a seat base having a fixing hood is externally fixed to a rod material. After that, the reel sheet is formed on the original pole by the procedure of attaching the movable hood.

[0003]

Considering the work of externally fixing the seat base to the rod material, in the case of the structure of the prior art, the inner surface of the cylindrically formed sheet base and the outer surface of the rod material are considered. Since the fixing is performed by bonding, it is necessary to apply an adhesive during the work. Regarding the rod material, a material for a fishing rod called a glass rod or a carbon rod is manufactured by firing a sheet-shaped prepreg wound on a loose tapered core metal (mandrel). So, the outer surface is also a loose taper surface, and after removing the core bar in the rod material manufactured in this way, if there is an error in the cutting position of both ends, based on the end of the rod material However, since there is a slight error in the value of the outer diameter of the rod material at a predetermined position, when trying to fix the seat base as described above, a slight gap is formed between the inner surface of the seat base and the outer surface of the rod material. occur or cause a rattling through prolonged <br/> Ru use, when the outer shape of the rod material is large sometimes cause of not Okurikome the seat base to a predetermined position, the rod material It is desired reliably technique for forming a seat base with respect to a fixed position of the surface. Therefore, it is conceivable to arrange a mold on the outer surface of the rod material after firing and inject a resin into the mold to form a sheet base integrally with the rod material. In addition to the need to increase the precision of grinding and the like in order to bring the inner surface of the rod into close contact with the outer surface of the rod material, if resin is simply formed on the outer surface of the rod, this resin will not be used during long-term use. May be displaced in the axial direction, leaving room for improvement. In particular, in molding using a mold, even if the outer surface of the rod material is finished with high precision to improve the adhesion with the inner surface of the mold, if the temperature of the mold rises due to repeated use, In addition, the inner diameter of the mold becomes large, and the injected resin leaks, so-called burrs are generated, and it may be necessary to remove the burrs. Incidentally, when the value of the gap between the outer surface of the rod material and the inner surface of the mold reaches about 0.02 mm or more, resin leakage occurs. An object of the present invention is to form a seat base in a predetermined position of a rod material as simply and firmly as possible.
A method of manufacturing a fishing rod and obtaining the fishing rod .

[0004]

A feature of the first invention is that an elastic coating (9) is formed on the outer surface of a rod material (R), and the elastic coating (9) is brought into close contact with the outer surface of the elastic coating (9). ), A resin (P) is injected into the cavity portion inside the mold (10), and the sheet base (S) of the reel sheet is stretched over the outer surface of the elastic coating (9) with the rod material (R). ) Is formed integrally outside. A feature of the second invention is that a rod material (R) having an elastic coating (9) layer formed on an outer surface thereof and a mold (10) in which the outer surface of the elastic coating (9) is brought into close contact with the rod material (R). 9) The reel sheet is made up of a resin sheet base (S) integrally formed on the outer surface by injection molding. A third aspect of the present invention is the fishing rod according to the second aspect, wherein the rod material (R) has an axis (X).
Is formed at the position where the reel sheet is formed, and the operation and effect thereof are as follows.

[0005]

When the above features are configured as shown in FIGS. 1 to 5, for example, when forming the sheet base S, the coating 9 is formed on the outer surface of the rod material R by means such as coating.
After that, the molds 10 and 10 are arranged and the resin P is injected to form the sheet base S over the outer surface of the coating 9 integrally with the rod material. Also, since the molds 10 and 10 come into contact with the outer surface of the coating 9 during this molding,
Even if the outer surface diameter of the rod material R does not match the inner surface diameter of the dies 10, 10 with high accuracy, the coating 9 can be formed upon contact with the dies 10, 10.
Is elastically deformed, so that the inner surfaces of the dies 10, 10 and the coating 9 can be brought into close contact with each other. Further, regardless of the temperature rise of the dies 10, 10, the gap between the dies 10, 10 and the coating 9 can be increased. The generation of the gap can be suppressed. In addition, the mold 10,
When the resin P is formed into a tubular shape by injection molding using the resin 10, the inner diameter of the resin P is reduced when the resin P is cooled. Due to the reduction, the resin P penetrates into the coating, and the finish between the end of the resin P and the outer surface of the rod material R is improved. That is, in the present invention,
Since the sheet base S is formed by molding, not only the step of manufacturing the sheet base S separately but also the step of applying an adhesive is not required, and
At the time of this molding, the sheet base S is formed integrally with the outer surface of the rod material R in a state in which the flow of the resin P is suppressed and the movement is prevented even when an external force acts without performing high-precision processing. You can.

[0006]

Effect of the Invention] Accordingly, the seat base easily at a predetermined position of the rod material, moreover, is the method of manufacturing a fishing rod firmly formed and its fishing rod was obtained.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 4 and 5 show a reel seat portion provided on the lure rod.
And a fixed rear hood 3. The front hood 2 includes a nut 4 provided on the inner surface thereof and a rod material R (rod). Screwed into a screw portion 5S of a first molding portion 5 integrally formed with the outer surface of the material).
Is formed integrally with a second molded portion 6 formed integrally with the outer surface of the rod material R (rod material). The first molding part 5 and the second molding part 6 are collectively referred to as a sheet base S, and the second molding part 6 is integrally formed with a trigger 6A. Has a grip 7. Further, in this rod, grooves G and G in a direction perpendicular to the axis X of the rod are formed at two positions on the outer surface of the rod material R.
By forming G, as shown in FIG. 1, wall portions 8 部 are formed at respective positions, and the first molding portion 5 is formed over the front groove portion G and the outer surface of the rod material R. , Rear groove G
The second forming portion 6 is integrally formed by injection molding using a mold over the outer surface of the rod material R and the outer surface of the rod material R. Hereinafter, this forming method will be described. That is,
As shown in FIG. 1, at the time of manufacturing this lure rod, first, the outer surface of a rod material R reinforced with carbon fiber or glass fiber is ground to form a wall portion 8 # by the above-mentioned grooves G, G. Thereafter, a resin coating 9 made of an elastic material is formed on the outer surface of the material R at a portion where the sheet base S is to be formed. This coating 9 is used for clear coating, and its components are appropriately mixed with a two-pack reaction type consisting of a polyester polyol-based main agent containing a solvent and an aliphatic polyisocyanate curing agent. It is formed by spraying or applying with a brush. Although the thickness of the coating 9 is set to a value smaller than 0.1 mm, the thickness is somewhat exaggerated in the drawing. Next, as shown in FIGS. 2 and 3, the pair of dies 10 is arranged so as to be in close contact with the outer surface of the rod material R. The dies 10, 10 are divided into two halves, and a core material 11 for forming the engaging recess 3A of the rear hood 3 is slidably provided on the dies 10. Next, a thermoplastic resin P in a heated state is placed in a cavity (inner space) of the molds 10, 10.
Is formed on the outer surface of the rod material R by means of so-called injection molding. Then, after sliding the core material 11 in the extracting direction,
The step of forming the sheet base S is completed by separating the molds 10, 10, and thereafter, the outer surface is subjected to a treatment such as painting and polishing, and the front hood 2 and the grip 7 are attached to complete the lure rod. You do it.

[Alternative Embodiment] The present invention, in addition to the above embodiment,
For example, it is also possible to configure and implement the following items. (A) For a rod material manufactured by firing a prepreg wound around a core, before the step of extracting the core,
The sheet base is formed as described above. 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. (B) The wall is formed so as to protrude from the outer surface of the rod material. (C) The resin used for injection molding is molded into a state in which glass fibers, nylon fibers, and the like are included to improve the strength. (D) The structure of the reel sheet is not a screw feed type, but a movable type hood and a structure having a stopper or the like for fixing the movement of the hood.

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 rod material having a wall and a coating formed thereon.

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

FIG. 3 is a sectional view taken along the line II in FIG. 2;

FIG. 4 is a plan view of a reel seat unit.

FIG. 5 is a longitudinal sectional side view of a reel seat portion.

[Explanation of symbols]

 9 coating 10 mold P resin R rod material S sheet base

Claims (3)

(57) [Claims] 1. A rod material elastic coating (9) is formed on the outer surface of the (R), and by closely arranged mold (10) to the outer surface of the elastic film (9), said mold (10) Resin (P) on the inside of the cavity
And forming a sheet base (S) of the reel sheet integrally with the outside of the rod material (R) over the outer surface of the elastic coating (9). 2. A rod material (R) having an elastic coating (9) layer formed on an outer surface thereof, and the elastic coating (9) is placed in a mold (10) with the outer surface of the elastic coating (9) closely contacted with the rod material (R). (9) Resin sheet base (S) of a reel sheet integrally formed by injection molding on the outer surface of (9)
And a fishing rod composed of: 3. The fishing rod according to claim 2, wherein a groove (G) in a direction orthogonal to an axis (X) of the rod material (R) is formed at a position where the reel sheet is formed. Fishing rod characterized by being.