JPH02150227A - Improved fishing rod - Google Patents

Abstract

PURPOSE:To provide a fishing rod composed of a conductive material and to prevent electric shock by coating the surface of the fishing rod with an insulating resin. CONSTITUTION:The surface of a fishing rod composed of a conductive material such as carbon fibers is coated with an insulating resin (e.g. polyesterimide, polyimidehydantoinester, polyamideimideester, polyamideimide or polyimide) having an insulation resistance of >=10<6>OMEGA on the application of a voltage to both the ends of the rod to provide the objective fishing rod.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an improved fishing rod, particularly a fishing rod made of a material with good conductivity, by forming a film with good insulation on the surface of the fishing rod, thereby preventing electric shock during fishing. Regarding fishing rods designed to prevent

[Prior Art] In recent years, carbon fishing rods, which have the advantage of being long and lightweight, have been rapidly growing. However, the drawback of these fishing rods is that they have good conductivity, so they cannot be moved while fishing or with the fishing rod extended. There have also been cases of electrocution and death due to contact with high-voltage lines (power distribution lines).

Measures to prevent this electric shock accident include putting a warning about electric shock on the fishing rod itself or posting it in the instruction manual.

The reality is that all of these measures are merely a warning to fishermen, and no fundamental measures to prevent electric shock accidents have yet been taken.

[Problems to be Solved by the Invention] An object of the present invention is to prevent electric shock accidents caused by anglers using the conductive fishing rod.

[Means for Solving the Problems] The above-mentioned problem of the present invention is to provide a fishing rod made of a conductive material with an insulation resistance of 106 when a voltage is applied to both ends of the rod.
This problem can be solved by coating the surface of the rod with an insulating resin having a resistance of Ω or more.

That is, the conductive material in the fishing rod of the present invention is as follows:
Carbon fiber, ie pitch type, rayon type.

Alternatively, a composite material of acrylic carbon fiber or the like and a matrix resin can be cited as a representative example.

Polyesterimide is also used as an insulating resin.

Saic modified polyester imide, polyimide hydantoin ester, polyamide imide ester.

Polyamideimide, polyimide, etc. and others.

There are epoxy resin-modified oils and fats, phenolic resin-modified polyvinyl formal, silicone-modified alkyd resins, etc. Among these resins, polyimide resins have particularly high insulation resistance (surface resistivity) and dielectric breakdown voltage, and have good wear resistance. Resins and polyamide resins are preferred.

These insulating resins are coated on the surface of the fishing rod by baking or coating to form a resin film of appropriate thickness. Generally, when it comes to electric shock accidents, alternating current is more dangerous than direct current, and if the current is 0.1 A and the voltage is 50 to 60 V or more, electrocution may result.

Especially in the case of AC, 250-5QOV is the most dangerous, and 1-5QOV is the most dangerous.
It is even said that a high voltage of 15KV will cause burns, but will not cause death. For this reason, the permissible current that is slightly felt by the human body is said to be less than 1mA, and the required resistance value to satisfy 1mA for the voltage of 500V in outdoor high-voltage wiring for boat fishing is approximately 700Ω, or at least 106Ω. If an insulating resin having the above insulation resistance is used, electric shock can be prevented. The insulation resistance referred to here is the resistance value determined from the current value when a voltage is applied between the tip and hand of a fishing rod in a dry state.

Further, it is desirable that the fishing rod of the present invention has high voltage breakdown strength (dielectric strength) as well as insulation resistance. This characteristic value is affected by the thickness of the resin coating, and for this reason, the thickness of the resin coating is usually set to a thickness that provides sufficient insulation against an AC voltage of approximately 250 to 500V. It is desirable that the thickness is 0.03M or more. Of course, if the thickness of the resin film becomes too thick, it will run counter to the goal of reducing the weight of the fishing rod.

[Example] Hereinafter, the present invention will be specifically explained with reference to Examples.

Example 1 An insulating paint containing polyimide resin as a main component was applied to the entire surface of a fishing rod with a carbon type piece of 877L to a thickness of about 0.04 mm. When an AC voltage of 50 QV was applied to the tip and hand of this fishing rod, the current was less than about 0.1 A, and the insulation resistance was more than about 107 Ω, indicating a sufficient electric shock prevention effect that was hardly felt by the human body. . Also, this fishing rod was coated with 45L of insulating paint, so it didn't feel heavy at all.

Example 2 The same procedure as in Example 1 was carried out except that a polyamide resin paint was used instead of the polyimide resin paint.
When AC voltage of 00V was applied.

As in Example 1, a sufficient electric shock prevention effect was observed.

Effects of the Invention The fishing rod of the present invention has an insulating paint applied to its surface, which has a remarkable effect of preventing electric shocks under high voltage without reducing the weight of the fishing rod. can be prevented.

Claims (1)

[Claims] An improved fishing rod made of a conductive material, in which the surface of the rod is coated with an insulating resin having an insulation resistance of 10^6 Ω or more when a voltage is applied to both ends of the rod.