JPS6354331B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method of manufacturing a fishing line guide.

The line guide part of the fishing line guide is made of a hard line guide ring made of abrasion-resistant ceramic to prevent damage to the fishing line, but this hard line guide ring has no elasticity and is brittle, so it cannot be directly attached to the metal guide frame. When press-fitting, there are defects such as loosening due to impact and temperature changes and detachment from the guide frame, and defects such as cracking during press-fitting.

Therefore, Jitsugoku Publication No. 35747 from 1984, Special Publication No. 35747 from 1984
As seen in Japanese Patent No. 34645, it is known that a synthetic resin buffer ring is interposed between a metal guide frame and a thread guiding ring and the two are press-fitted.

However, this three-layer structure method increases weight and outer diameter due to the provision of a buffer ring, which creates a delicate rod condition, which is a negative factor and reduces the functionality of the fishing rod. It also increases the number of parts and the assembly process. The manufacturing process is also troublesome, and the line guiding ring cannot be sufficiently protected against radial impact and pressing force of the fishing line guide.Furthermore, the buffer ring becomes brittle during use, causing the line guiding ring to become brittle during use. The holding and fixing force of the ring also decreases, causing the thread guiding ring to fall off.

In addition, as a partially improved version of this,
As seen in Publication No. 7646, it is known to form a concave groove on the outer circumferential surface of the thread guiding ring into which a buffer ring fits, but since it is a three-layer structure system, of course there are many parts, and there are especially This method has the disadvantage that the press-fitting operation of the thread guide ring is troublesome and the thread guide ring may break, and the thread guide ring is not sufficiently fixed and protected.

The present invention relates to a method of manufacturing a fishing line guide that improves these defects.The present invention relates to a method of manufacturing a fishing line guide that improves these defects. After a guide frame is formed by integrally molding a tapered protruding ring whose inner diameter matches the outer diameter and gradually decreases toward the tip, a hard thread guide ring is press-fitted from the protruding ring mouth side of the guide frame. This is a summary.

According to the present invention, the thread guide ring can be press-fitted directly into the guide frame by utilizing the elasticity of the thin tapered protruding ring of the guide frame, and this can be easily, firmly and securely fixed, and the fishing line is lightweight and has a small outer diameter. Guides can be manufactured efficiently.

Furthermore, the method of the present invention allows smooth and easy press-fitting without breaking the thread guide ring, and since there are only two parts, the guide frame and the thread guide ring, manufacturing and assembly operations are extremely simple.

Furthermore, when using the method of the present invention, the protruding ring of the guide frame widely covers most of the circumferential surface of the thread guiding ring, so that the thread guiding ring does not become loose even when subjected to shocks or temperature changes. Even when the fishing line guide comes into contact with another object, the line guide ring is sufficiently protected, and the section where the line guide ring is fitted has an angled cross section, so that it can withstand shock and pressing force in the radial direction of the fishing line guide. It has the feature of being able to manufacture a lightweight and compact fishing line guide that does not reduce the functionality of the fishing rod.

To explain the details of the present invention with reference to embodiments, a metal frame member 1 made of stainless steel, brass, steel, etc. has a tapered protruding ring 3 on one side of an upper annular frame portion 2.
A guide frame 5 is formed by integrally molding fishing rod mounting members 4 at the lower part.

When forming the tapered protruding ring 3 of the guide frame 5, the inner diameter of its mouth edge matches the outer diameter of the thread guide ring 6, and the inner diameter gradually decreases as it reaches the tip, and its wall thickness is needs to be formed thinner than the wall thickness of the annular frame portion 2.

For example, if the wall thickness of the annular frame 2 is 0.8 to 1.0 mm, the width of the thread guide ring 6 is 3 to 4 mm, and the length of the protruding ring 3 is 2 to 3 mm, the taper degree a of the protruding ring 3 is 0.02 to 0.25 mm, and the wall thickness is 0.2 mm. ~
Approximately 0.4mm is appropriate.

The tapered protruding ring 3 of the guide frame 5 can be formed by drawing the metal frame member 1 made of a metal plate in stages and punching out the rear bottom part as shown in FIG. As shown in the figure, punching holes are punched in advance in the metal frame member 1 of the metal plate, the punched hole portion is drawn, and the tip thereof is cut. It can be manufactured by cutting the outer peripheral surface of a cylindrical bulge formed by drawing the metal frame member 2 of the plate, and then cutting the tip thereof, or it can be further formed by forging or molding. , or they may be shaped by cutting, or the shaping means may be arbitrary, and at the same time as or before or after these shaping, a fishing rod attachment member 4 of any shape may be integrally and continuously attached to the lower part thereof. Then, the guide frame 5 is formed.

A hard thread guide ring 6 made of ceramic such as alumina, titanium carbide, silicon carbide, etc. is press-fitted from the edge side of the tapered protruding ring 3 of the guide frame 5 manufactured in this manner, thereby forming the tapered protruding ring 3. A fishing line guide is manufactured by tightening and fixing the line guiding ring 6 using the elasticity of the parts.

Therefore, the thickness of the protruding ring 3 may be gradually thinned toward the tip or may be formed with the same thickness as shown in FIG. Any method may be used, such as a convenient fitting method for the fishing rod or a method for attaching it to the top surface of the fishing rod for use as a casting rod.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing the manufacturing process of the present invention, Figure 2 is an explanatory diagram showing the manufacturing process of the present invention.
4 to 4 are explanatory diagrams showing the molding means for the protruding ring of the present invention, FIG. 5 is an explanatory diagram showing the manufacturing process of another embodiment of the present invention, and FIG. 6 is a front view of the fishing line guide according to the method of the present invention. It is a diagram. DESCRIPTION OF SYMBOLS 1... Metal frame member, 2... Annular frame part, 3... Projection ring,
5... Guide frame, 6... Thread guiding ring.

Claims (1)

[Claims] 1. On one side of the annular frame of the metal frame member, there is provided a tapered protruding ring whose wall thickness is thinner than that of the metal frame member, whose inner diameter matches the outer diameter of the thread guide ring, and whose inner diameter gradually decreases toward the tip. A method for manufacturing a fishing line guide, which comprises integrally molding a guide frame, and then press-fitting a hard line guiding ring from the protruding ring opening edge side of the guide frame.