JPH0324894B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION The present invention relates to a method of manufacturing a fishing rod in which the surface of the fishing rod is decorated.

Conventional technology The manufacturing method for fishing rods involves wrapping a prepreg impregnated with a thermosetting resin around a core metal, wrapping tape around the surface in a spiral shape while partially polymerizing it, and binding it with heat. Currently, a tubular body is formed by curing, then removing the core metal and peeling off the tape, but during the heat curing process, resin gets into the gap between the tape polymerization parts due to the wrapping of the tape, resulting in formation problems. A raised spiral striation with a height of 15 to 30 microns is formed on the surface of the tubular body.

Conventionally, the raised spiral stripes created by this tape are polished to make the surface smooth on high-quality rods, but on lower-grade rods they are left as they are, resulting in a defect that is extremely unpleasant to the touch.

Structure of the Invention The present invention improves the decorative value of the fishing rod by forming a decorative pattern on the surface of the fishing rod using the raised spiral stripes. After sequentially binding the prepreg by wrapping tape, heat curing treatment, peeling off the tape, and removing the core metal, the outer peripheral surface of the tubular body is coated with a paint of a different color from that of the tubular body. The gist is to polish until the raised spiral striations are exposed.

To explain the details of the present invention with reference to the drawings, a prepreg made of carbon fiber, glass fiber, etc. impregnated with a thermosetting synthetic resin such as epoxy resin or polyester resin is wound around a core metal, and then cellophane tape is placed on top of the prepreg. Wrap it in a spiral so that it partially polymerizes and bind it.

Next, after heat-curing this as in a conventional method, the core bar is pulled out and the cellophane tape is peeled off. The thermosetting synthetic resin enters the gap and wraps around the tape, creating a raised spiral strip 2 with a height of 15 to 30 microns, the same as the spiral pitch of the tape.
is inevitably formed.

Next, on the surface of this tubular body 1, a colored paint 3 such as an epoxy resin paint of a color different from the base material of the tubular body is applied to a thickness of about 10 to 20 microns, and after drying, the raised spiral stripes 2 are exposed as shown by the chain line in FIG. Either the surface is polished to a smooth surface, or the surface is further coated with a transparent or colored transparent paint 4 such as urethane resin paint or epoxy resin paint to a thickness of about 10 to 20 microns as shown in FIG.

In this way, a fishing rod with a smooth surface in which the ground color of the material of the tubular body is spirally revealed is manufactured.

Effects of the Invention The present invention applies a colored paint to the surface of a tubular body formed by winding prepreg, and then polishes the surface to eliminate the raised spirals that inevitably occur due to the heat curing process for winding tapes. Since the stripes are exposed on the surface of the colored paint, it is possible to use the raised spiral shape as a decorative pattern, which was traditionally a cause of polishing or deterioration of quality, making it possible to easily and efficiently manufacture high-quality fishing rods using extremely simple means. It has excellent features that make it possible to

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a fishing rod according to the present invention when it is coated with a colored paint, and FIG. 2 is a cross-sectional view of a fishing rod according to the present invention. 1... Tubular body, 2... Raised spiral strip, 3... Colored paint, 4... Transparent paint.

Claims (1)

[Claims] 1. A prepreg impregnated with a thermosetting synthetic resin wrapped around a core metal is sequentially bound by tape winding, thermosetting treated, tape peeled off, and the core metal removed. 1. A method for manufacturing a fishing rod, which comprises coating the rod with a coating material and then polishing the rod until the raised spiral striations produced by the tape wrapping are exposed.