JPH0220233A - Fishing rod passing fishing line through hollow core and production of the same rod - Google Patents

Abstract

PURPOSE:To prevent the lowering of the strength and flexibility of a fishing rod and to enable smooth guide of a fishing line from a reel by forming an integrally protruded part in such a manner as to gradually raise a side face of a rod pipe toward the rear side and opening a fishing line insertion hole at the back of the protruded part. CONSTITUTION:A reel 3 is fixed to the outside of a butt 2 of a fishing rod 1 and an inclined protruded part 4 having nearly the same wall thickness is integrally formed in front of the reel 3 of the butt 2 in such a manner as to gradually rise toward the rear side. A fishing line insertion hole having a fishing line ring is opened at the rear end of the protruded part along the inclination direction and the fishing line A extending from the reel 3 is passed through the fishing line insertion hole, the inside of the protruded part 4 and the butt 2 and guided to the tip of the fishing rod 1. The fishing rod can be produced by separably fixing a gradually rising convex-forming mold to a side of a core toward the base part and winding a prepreg sheet around the core.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a threaded fishing rod and a method for manufacturing the same.

[Prior art] A threaded fishing rod in which the fishing line of a reel attached to the outside of the main rod is inserted into the fishing rod and guided to the tip of the fishing rod is disclosed in Japanese Patent Application Laid-Open No. 56-127.
It is known from Japanese Patent Publication No. 032, Japanese Patent Publication No. 51-6072, etc. (Problems to be Solved by the Invention) However, with conventional threaded fishing rods, the part where the fishing line is inserted into the fishing rod is worn out by the insertion hole, causing the fishing line to break, and the strength of the fishing rod in the insertion hole part is reduced. In particular, when a separate guide, dome, etc. is provided from the fishing rod so that the fishing line can be inserted smoothly into the fishing rod, the decrease in strength will not only become more pronounced, but also hinder the flexibility of the fishing rod. There are some defects such as In view of these current circumstances, the present invention provides a guide that smoothly guides the fishing line from the reel into the fishing rod by integrally forming the guide made of the same material as the fishing rod to prevent wear of the fishing line and a decrease in the strength of the fishing rod. The purpose of the present invention is to provide a hollow fishing rod and a method for manufacturing the same. [Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention integrally forms a protrusion so that one side of the rod tube faces rearward and gradually slopes higher, and the rear end surface of the protrusion is provided with a protrusion. A fishing line insertion hole is provided substantially along the inclination direction, and it is preferable that a hard guide is fitted into the fishing line insertion hole. In addition, the method of manufacturing the hollow fishing rod of the present invention is to attach a convex portion-forming mold that gradually rises and slopes to one side of a core metal so as to face the base, and to wrap a prepreg sheet around the core metal. After superimposing the reinforcing member on the protrusion forming mold portion, a tape is tightly bound to the outside of the prepreg sheet and heat curing treatment is performed, and then the core bar is sequentially pulled out, the protrusion forming mold is removed, and the tape is peeled off. Furthermore, a fishing line insertion hole is bored in the rear end surface of the protrusion of the formed rod tube. The prepreg sheet used is one that is used as a fishing rod component of a conventional fishing rod, and the reinforcing member is made of a high-strength, high-elastic material such as the prepreg sheet or a fiber-reinforced metal plate. Then, it is polymerized and wound around the entire circumference of the protrusion forming mold part including the core metal, or it is polymerized only on the protrusion forming mold part. The protrusion forming mold is separably engaged with the core metal so that the core metal can be pulled out after thermosetting treatment and removed from the manufactured fishing rod material, and is also used for winding the prepreg sheet. After the reinforcing member has been polymerized, a convex part mold is applied to the rear of the convex part forming mold of the core metal, and a tape is tightly wound from the top surface of the mold to facilitate the formation of the fishing line insertion hole. .

[Function] In the threaded fishing rod of the present invention, the fishing line from the reel is smoothly guided into the fishing rod through the fishing line insertion hole on the rear end surface of the protruding part, passing through the inside of the protruding part, and the protruding part guides the fishing line. The rod is made of the same material as the fishing rod and is integrally formed so as not to reduce the strength and flexibility of the fishing rod. In addition, the manufacturing method of the hollow fishing rod of the present invention includes detachably locking a protrusion forming mold to a core metal, wrapping a prepreg sheet constituting the fishing rod around the core metal, and attaching a reinforcing member to the protrusion forming mold part. By polymerizing and binding tape to the outside of this prepreg sheet, it is possible to integrally form a protruding part that gradually becomes higher toward the rear for guiding the fishing line and is made of the same material as the fishing rod. It also becomes possible to pull out the core metal and remove the protrusion forming mold. [Example] To explain the hollow fishing rod of the present invention with reference to the drawings, the outside of the main rod 2 of the fishing rod 1 is constructed by thermosetting a prepreg sheet in which reinforcing fibers are impregnated with a thermosetting synthetic resin. The reel 3 is fixedly attached to the main rod 2, and in front of the reel 3 of the main rod 2, a protruding part 4 of approximately the same thickness is formed integrally with the protruding part 4, which is inclined so as to gradually become higher toward the rear. A fishing line insertion hole 6 into which a fishing line guide 5 is fitted is bored in the rear end surface of the portion 4 approximately along the above-mentioned inclination direction, and the fishing line A from the reel 3 passes through the fishing line insertion hole 6 and passes through the inside of the protruding portion 4. It is inserted into the base rod 2 and guided to the tip of the fishing rod 1. Next, when the hollow fishing rod of the present invention is manufactured, the protrusion forming mold 8 that forms the protrusion is placed on the upper part of the core bar 7 so as to be separable in the locking groove 7' so as not to move backward. A known prepreg sheet 9 for forming a fishing rod is wound around the core metal 7 and the convex part forming mold 8 one to several times per ply, or one ply is wound one to several times, or one
Wrap one to several plies. Therefore, when winding the prepreg sheet 9, either one ply of thin reinforcing prepreg sheet 10 is wound around the protrusion forming mold 8 in advance, and then the prepreg sheet 9 is wound. It is also possible to polymerize one ply of the reinforcing prepreg sheet 10 in advance and then wrap both of them at the same time. After the core metal 7 with the prepreg sheet 9 wound thereon is brought into close contact with the core metal by a rolling means, if necessary, the convex part applying mold 11 is applied to the rear part of the convex part forming mold 8, and the prepreg sheet 9 and the convex part are pressed together. The tape is wound spirally around the outside of the mold 11 so that a portion of the tape is partially polymerized, and the tape is tied tightly, and then the tape is heat-cured according to a conventional method. Next, after pulling out the core metal 7, the protrusion 4 formed is removed to remove the protrusion forming mold 8, and the tape is peeled off, the surface is polished, and painted to form a tubular body. A fishing line insertion hole 6 is formed with the rear end surface facing substantially in the direction of inclination of the protrusion, and a fishing line guide 5 is attached to the fishing line insertion hole 6 to form a fishing rod. In the embodiment described above, the reinforcing prepreg sheet, which is a reinforcing member, is wound and polymerized around the entire circumference of the protrusion forming mold portion including the core metal, but it is also possible to polymerize only the protrusion forming mold portion. Effects of the Invention The threaded fishing rod of the present invention has a protrusion that smoothly guides the fishing line from the reel into the rod tube, and is integrally formed of the same material as the fishing rod, so that the strength and flexibility of the fishing rod are not reduced. This can be prevented, and the fishing line can be guided smoothly and reliably into the fishing rod to prevent wear of the fishing line. In addition, the method for manufacturing a threaded fishing rod of the present invention allows the protrusion that smoothly guides the fishing line by the prepreg sheet of the fishing line component to be produced at the same time as the fishing rod. It is possible to easily manufacture a threaded fishing rod with no reduction in strength or flexibility.

[Brief explanation of the drawing]

Fig. 1 is a front view of the fishing rod of the present invention, Fig. 2 is a longitudinal sectional front view of the main parts, Fig. 3 is a vertical view taken along the line 1-1 in Fig. 2, and Fig. 4 is the fishing rod of the invention. Fig. 5 is a partially cutaway front view when the prepreg is wrapped in the manufacturing process, Fig. 6 is a cross-sectional view taken along the line from Fig. 5 ■ to ■, Fig. 7 is Fig. 5 ■ 〜■ Line sectional view, Figure 8 is a plan view of the core metal and the convex part forming mold,
FIG. 9 is a front view of the same, and FIG. 10 is a side view of the same. 1... Fishing rod, 2... Original rod, 3... Reel, 4...
・Protrusion, 5... Fishing line guide, 6... Fishing line insertion hole,
7... Core bar, 8... Convex portion forming mold, 9... Prepreg sheet, 10... Prepreg sheet for reinforcement. Patent applicant Daiwa Seiko Co., Ltd.

Claims (1)

[Claims] 1. A protruding portion is integrally formed so that one side of the rod tube is tilted toward the rear and gradually higher, and a fishing line insertion hole is provided on the rear end surface of the protruding portion approximately along the inclination direction. A fishing rod with a hollow thread. 2. A protrusion forming mold that gradually rises and slopes is separably locked on one side of the core metal toward the base, and a prepreg sheet is wrapped around the core metal, and a reinforcing member is superimposed on the protrusion forming mold portion. After that, tape is tightly tied to the outside of the prepreg sheet and heat-cured. Next, the core metal is pulled out, the protrusion forming mold is removed, and the tape is peeled off. A method for manufacturing a threaded fishing rod, which is characterized by drilling a fishing line insertion hole.