JP2001178319A - Guide member for fishing line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guide member which is used for a fishing line, can prevent a guide ring from detaching from a joint frame, and can be used for a long period. SOLUTION: This guide member for fishing line comprising a guide ring 1 for guiding the fishing line and a joint frame 1 fixed to the outer circumferential surface 1b of the guide ring 1 through an adhesive 3, is characterized in that the surface roughness Ra of the outer circumferential surface 1b of the guide ring 1 is >=0.4 μm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing line guide member mounted on a fishing rod to guide a fishing line.

[0002]

2. Description of the Related Art Conventionally, in fishing using a reel, a fishing rod is provided with a plurality of ring-shaped guide members to guide a fishing line.

Such a conventional guide member comprises a ring-shaped guide ring for guiding a fishing line and a joint frame to which an outer peripheral surface of the guide ring is attached and which fixes the guide ring to a fishing rod. Was generally formed of resin or metal.

Although the guide member is required to have excellent wear resistance because the fishing line repeatedly slides on the guide ring when fishing, the conventional guide member made of metal or resin has a high wear resistance. Therefore, it has a drawback that it is not used for a long period of time. Particularly in the recent fishing industry, fishing using lures has become remarkably widespread. In lure fishing, since the number of times of lure throwing and rewinding is extremely large, the above-mentioned drawbacks have been remarkable.

In order to solve the above-mentioned drawbacks, it has been proposed that the guide ring of the guide member be formed of a zirconia-based sintered body or silicon carbide-based sintered body having excellent strength and abrasion resistance. JP-A-63-41532,
-153887).

[0006]

A guide member in which the guide ring is formed of a zirconia-based sintered body or a silicon carbide-based sintered body is formed by bonding an outer peripheral surface of a ring-shaped guide ring to a joint frame made of metal with an adhesive. The guide ring has a smooth surface so that the fishing line slides smoothly and does not damage the line, and the guide ring and the joint frame are fixed. The joint strength between the guide ring and the adhesive is weak because the surface is flat (two-dimensional), so the fishing line is guided by the guide ring and the stress caused by the sliding contact of the fishing line with the fixed part of the guide ring and the joint frame is reduced. Repeated action causes separation between the guide ring and the adhesive, causing the guide ring to come off the joint frame, thereby guiding the fishing line. Functions as a guide member that that had the problem of loss.

The present invention has been devised in view of the above-mentioned drawbacks, and has as its object to provide a fishing line guide member capable of increasing the fixing strength between a guide ring and a joint frame and guiding a fishing line for a long period of time. It is in.

[0008]

SUMMARY OF THE INVENTION The present invention is a fishing line guide member comprising a ceramic guide ring for guiding a fishing line, and a joint frame fixed to an outer peripheral surface of the guide ring via an adhesive. The surface roughness of the outer peripheral surface of the ceramic guide ring is the center line average roughness (R
a) Ra is 0.4 μm.

According to the fishing line guide member of the present invention, the surface roughness of the outer peripheral surface of the guide ring is determined by calculating the center line average roughness (Ra).
Since the joint is fixed to the guide ring and the adhesive three-dimensionally (three-dimensionally) since the joint frame is fixed to the rough outer peripheral surface via an adhesive, the joint area increases. The joining strength is increased, and as a result,
The fixing strength of the guide ring and the joint frame is high, and even if the stress caused by the sliding contact of the fishing line repeatedly acts on the fixing portions of both, the fixing is not broken, and the fishing line can be guided for a long period of time.

[0010]

Embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is an enlarged sectional view of a fishing line guide member according to the present invention.

The fishing line guide member of the present invention comprises a ceramic guide ring 1 and a joint frame 2. The joint frame 2 is fixed to the outer peripheral surface 1 b of the ceramic guide ring 1 via an adhesive 3. ing.

The ceramic guide ring 1 has a ring shape and is formed of ceramics such as a silicon carbide sintered body, a zirconia sintered body, and a boron carbide sintered body.

When the ceramic guide ring 1 is formed of a silicon carbide sintered body, for example, silicon carbide (SiC)
1 to 7% by weight of aluminum oxide (Al ₂ O ₃ ) powder and 0.1% of group 3a element oxide in the periodic table such as yttrium oxide (Y ₂ O ₃ ) powder and cerium oxide (CeO) powder.
The raw material powder is prepared by adding and mixing 1 to 5% by weight, and then the raw material powder is formed into a predetermined shape by a die press, a cold isostatic press, an injection molding, an extrusion molding, and the like. It is manufactured by firing at a temperature of 1800 to 2200 ° C.

When the ceramic guide ring 1 is formed of a silicon carbide sintered body, the silicon carbide sintered body has a good sliding property with respect to a fishing line and is not corroded even if seawater or the like adheres thereto. It can be suitably used as the guide ring 1 for smoothly guiding the fishing line.

When the ceramic guide ring 1 is formed of a silicon carbide sintered body, the mechanical strength of the guide ring 1 is increased if the average crystal grain diameter of silicon carbide is set to 10 μm or less. For a long time. Therefore, when the ceramic guide ring 1 is formed of a silicon carbide sintered body, the average crystal particle diameter of silicon carbide is preferably set to 10 μm or less.

When the ceramic guide ring 1 is formed of a silicon carbide sintered body, if the open porosity is set to 1% or less, the mechanical strength of the guide ring 1 is increased and the length of the guide ring 1 is increased. Can be used. Therefore, when the ceramic guide ring 1 is formed of a silicon carbide sintered body, the open porosity is 1% or less, preferably 0.3%.
It is good to keep as follows.

Further, the ceramic guide ring 1 is formed in a ring shape having a through hole at a central portion, and a fishing line is guided through the through hole.

The inner surface 1a of the through-hole of the guide ring 1 is provided with an arc-shaped processing to smoothly guide the fishing line and to prevent the fishing line from being damaged, and the radius of the arc is 0.5. The arc-shaped processing of the inner surface 1a of the through-hole of the guide ring 1 which can smoothly guide the fishing line without imposing a large load when the length is set to 5 mm is performed, for example, by forming the guide ring 1 formed by molding a raw material powder by a die press. When manufacturing, it is formed by forming an arc-shaped protruding surface on the upper and lower molds of the mold press in advance.

The guide ring 1 also has an arc-shaped through-hole inner surface 1a having a surface roughness R as a center line average roughness (Ra).
When the a is set to 0.1 m, the fishing line is guided, and it is possible to effectively prevent scratches (damage) when the fishing line comes into sliding contact. Accordingly, in order to prevent the fishing line from being scratched (damage) and to make the life of the fishing line extremely long, the guide ring 1 is used.
It is preferable that the surface roughness of the arc-shaped inner surface 1a of the circular arc is set to a center line average roughness (Ra) Ra of 0.1 μm.

The surface roughness of the arc-shaped through-hole inner surface 1a of the guide ring 1 is defined as the center line average roughness (Ra) R.
To make a 0.1 μm, the inner surface 1 of the through hole of the guide ring 1
This is performed by subjecting a to a well-known barrel polishing.

The ring-shaped guide ring 1 is also provided.
Is the surface roughness of the outer peripheral surface 1b is the center line roughness (Ra) Ra
It is 0.4 μm.

The guide ring 1 is provided with an outer peripheral surface 1b of the guide ring 1 which will be described later to increase the surface roughness of the outer peripheral surface 1b.
When the joint frame 2 is bonded and fixed with the adhesive 3 therebetween, the joint strength between the guide ring 1 and the adhesive 3 is increased, and the outer peripheral surface 1b of the guide ring 1 is made to have a center line average roughness (Ra). Guide ring 1 with Ra 0.4 μm
And the bonding agent 3 becomes three-dimensional (three-dimensional), the bonding area increases, and the bonding strength increases. As a result, the guide ring 1 and the joint frame 2 are extremely firmly connected with the bonding agent 3. It becomes possible to adhere and fix.

When the surface roughness of the outer peripheral surface 1b of the guide ring 1 becomes (Ra) Ra 0.4 μm in center line average roughness, the bonding strength between the guide ring 1 and the adhesive 3 becomes weak,
Guide ring 1 when stress is applied to guide the fishing line
Separation easily occurs between the adhesive and the adhesive 3. Accordingly, the surface roughness of the outer peripheral surface 1b of the guide ring 1 is specified as the center line average roughness (Ra) Ra 0.4 μm, and considering the mechanical strength of the guide ring 1, 0.4 μm Ra
It is preferable that the thickness be in the range of 5.0 μm.

The outer peripheral surface 1b of the guide ring 1 is Ra
As a method for processing to a surface roughness of 0.4 μm, for example, centerless grinding is adopted.

The guide ring 1 has an outer peripheral surface 1b.
A joint frame 2 is bonded and fixed via an adhesive 3 such as an epoxy resin, and the joint frame 2 acts as a fitting for attaching the guide ring 1 to a fishing rod.

The joint frame 2 is formed of a metal material obtained by applying gold or chrome plating to stainless steel, titanium alloy, iron, brass, or the like, and corresponds to the outer shape of the guide ring 1 by pressing a wire material such as stainless steel. It is manufactured by processing it into a shaped shape.

Thus, according to the fishing line guide member of the present invention, the joint frame 2 is attached to a predetermined position of the fishing rod, and the fishing line is guided into the through hole of the guide ring 1 so that fishing such as lure fishing can be performed. Provided. (Experimental example) Next, the operation and effect of the present invention will be described based on the following experimental examples.

First, the surface roughness of the outer peripheral surface of a guide ring formed of a silicon carbide sintered body is set to the value shown in Table 1, and a joint frame 2 made of stainless steel is bonded to the outer peripheral surface with an adhesive made of epoxy resin. A fixed fishing line guide member sample is prepared.

Next, as shown in FIG. 2, the joint frame of each fishing line guide member sample 10 is fixed, and a conical stopper having a diameter larger than the through hole of the guide ring at the upper end in the through hole of the guide ring. 11 at the bottom 5Kg
Through a 1 m long wire with a weight 12.

Next, the stopper 11 is pulled up until the weight 12 comes into contact with the lower surface of the guide ring, and then the stopper 11 is released and dropped to forcibly apply the collision force of the stopper 11 to the guide ring.

Then, the above-mentioned collision force was repeatedly applied, and the number of times of application of the collision force when the guide ring was disengaged from the joint frame was examined. This was used to evaluate the joint strength between the guide ring and the joint frame.

In the above experiment, each of the fishing line guide member samples was evaluated by five, and the number of collision forces applied until the guide ring came off the joint frame was equal to the average value of the five fishing line guide member samples. did.

Table 1 shows the results.

[0035]

[Table 1]

As can be seen from Table 1, the surface roughness of the outer peripheral surface of the guide ring is the center line average roughness (Ra) Ra 0.3 μm.
The guide ring comes off from the joint frame by applying a collision force of 11 times or less, and the bonding strength between the guide ring and the joint frame via the adhesive is weak. On the other hand, in the present invention in which the surface roughness of the outer peripheral surface of the guide ring is set to the center line average roughness (Ra) Ra 0.4 μm, the guide ring does not come off from the joint frame even when the impact force is applied 100 times or more, and the adhesive does not pass through the adhesive. It can be seen that the joining strength between all the guide rings and the joint frame is extremely high.

[0037]

According to the fishing line guide member of the present invention, the surface roughness of the outer peripheral surface of the guide ring is (Ra) Ra 0.4μ.
The joint between the guide ring and the adhesive becomes three-dimensional (three-dimensional) because the joint frame is fixed to the rough outer peripheral surface via an adhesive, and the joint area is increased. As a result, the fixing strength of the guide ring and the joint frame is strong, and even if the stress caused by the sliding contact of the fishing line repeatedly acts on the fixing part of both, the fixing is not broken, and the fishing line is guided for a long time. Becomes possible.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a guide member of the present invention.

FIG. 2 is a view showing a fixing strength test of a guide ring and a joint frame.

[Explanation of symbols]

 1: Guide ring 1a: Inner surface of guide ring through hole 1b: Outer surface of guide ring 2: Joint frame 3: Adhesive

Claims (1)

[Claims] 1. A fishing line guide member comprising a ceramic guide ring for guiding a fishing line, and a joint frame fixed to an outer peripheral surface of the guide ring via an adhesive, wherein the outer periphery of the ceramic guide ring is provided. A guide member for a fishing line, wherein the surface has a surface roughness of 0.4 μm in center line average roughness (Ra).