JPS612538A - Manufacture of fishing rod - Google Patents

Abstract

PURPOSE:To improve the decorative value of a fishing rod by forming a decorative pattern on the surface of the fishing rod by utilizing a protruded helical rifle. CONSTITUTION:Prepreg consisting of carbon fiber, glass fiber, etc. impregnated with a thermosetting synthetic resin is wound on a mandrel, and a cellophane tape is wound spirally on the upper section of prepreg so that one part is superposed and bound tightly. When the whole is thermosetting-treated and the mandrel is drawn out and the cellophane tape is peeled, a protruded helical rifle 2 in 15-30mu height at the same pitches as the helical pitches of the wound tape is shaped to the surface of a formed tubular body 1. Colored coating 3 having a color different from a foundation for the tubular body is applied on the surface of the tubular body 1 in approximately 10-20mu and dried, and a protruded helical rifle 2 section is ground until it is exposed or the surface of the protruded helical rifle 2 section is coated thinly with transparent or colored transparent coating 4 in approximately 10-20mu. Accordingly, a fishing rod, on a helix thereof the ground color of the blank for the tubular body is exposed and which has a smooth surface, is manufactured.

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.

The conventional manufacturing method for fishing rods involves wrapping a prepreg impregnated with a thermosetting resin around a core metal, wrapping tape around the surface of the prepreg in a spiral shape while partially polymerizing it to bind it, and then thermosetting the prepreg. At present, a tubular body is formed by processing, then removing the core metal and peeling off the tape. However, during the heat curing process, resin gets into the gap between the tape polymerization parts due to the wrapping of the tape, resulting in the formation of tubular bodies. 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 utilizes the raised spiral stripes to form a decorative pattern on the surface of a fishing rod to improve the decorative value of the fishing rod. After applying a paint different in color from the tubular body to the outer peripheral surface of the tubular body formed by sequentially binding the prepreg by wrapping tape, heat curing treatment, peeling off the tape, and removing the core metal, The gist is to polish until the raised spiral stripes 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 attached on top of the prepreg. Wrap it in a spiral so that it partially polymerizes and bind it.

Next, after heat-curing this in a conventional manner, the core bar is pulled out and the cellophane tape is peeled off. A raised spiral strip 2 with a height of 15 to 30 microns is inevitably formed, which is the same as the spiral pitch of the tape into which the curable synthetic resin is wound.

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 exposed in a spiral manner 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 remove the raised spiral streaks that inevitably occur due to the heat curing process for wound tapes. To easily and efficiently manufacture high-quality fishing rods by an extremely simple means by using raised spiral stripes that are conventionally caused to be removed by polishing or to cause quality deterioration because they appear on the colored paint surface, and which can be used as decorative patterns. It has excellent features that allow it to

[Brief explanation of the drawing]

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