JP3134982B2 - Through fishing rod - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a through fishing rod in which an annular fishing line guide or a spiral fishing line guide is disposed inside a rod tube.

[0002]

2. Description of the Related Art From the viewpoints of improving the slipperiness of a fishing line and preventing frictional damage on the inner peripheral surface of a rod tube, it is particularly necessary to press-fit or glue a fishing line guide into a formed rod tube and fix it after forming the rod tube. Japanese Unexamined Patent Publication No. 56-127032 discloses a through fishing rod in which a single fiber fishing line guide ring is integrally formed on the inner peripheral surface of a rod pipe.

[0003]

However, in the former publication in which the rod is fixed after the rod tube is formed, the fishing line guide is removed or displaced during fishing due to bending or cross-sectional deformation of the fishing rod. Also, in the latter publication, the fishing line guide annular body has a circular cross-section and is almost as high (having a large curvature) as compared to the width dimension, and the inner peripheral surface of the fishing line guide annular body is shaped like a mandrel when the rod is formed. When the fiber reinforced prepreg is wound from the outside, the fishing line guide ring portion of the fiber reinforced prepreg has a suddenly outwardly convex shape.
For this reason, when heated and baked, the fibers meander and the strength of the formed rod decreases.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fishing rod through which a fishing line guide is firmly fixed to the inner peripheral surface of a rod pipe and the strength of the rod pipe is prevented from being reduced by the fixing.

[0005]

DISCLOSURE OF THE INVENTION In view of the above-mentioned object, the present invention provides a main fiber of reinforcing fibers on an inner peripheral surface of a rod pipe formed by winding a prepreg obtained by impregnating or mixing a high-strength fiber with a resin.
The cross section is deviated by the interposition of a reinforcing layer whose circumferential direction is the fiber direction.
Flat or circular, annular fishing line guide or spiral fishing line
The guide, as well as integrally fixed to a part embedded form by heat molding, the fishing line guide rod pipe outer periphery of the stationary portion is gradually
A through fishing rod comprising a rod tube that swells and prevents strong meandering of fibers .

[0006]

[Action] The fishing line guide is partially embedded, and the inner circumference is
Since it protrudes and is integrally fixed to the rod pipe, it can be firmly fixed and the fishing line resistance can be reduced. The main fiber direction of the reinforcing fiber is between the fishing line guide and the inner peripheral surface of the rod pipe.
Since the reinforcing layer with the circumferential direction is interposed,
The portion is formed thick to prevent the strength from being reduced. Ma
In addition, if the part is formed thick with a reinforcing layer interposed, the outer circumference of the rod pipe is eased to protrude in a steep slope and is gently swelled, the fibers strongly meander and the rod pipe strength is greatly reduced. It is prevented that.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 shows a first embodiment of a through fishing rod according to the present invention. High-strength fiber such as carbon is impregnated with a thermosetting resin such as epoxy resin, or a fiber-reinforced prepreg (used in a broad sense including thermoplastic resin) mixed with thermoplastic resin such as polyamide is wound and fired. An annular fishing line guide 12 of ceramics or the like is provided on the inner periphery of the formed rod tube 10.

Since the fishing line guide 12 has a cross-sectional shape formed by a curve having a large width and a small flat curvature with a small curvature, as shown in FIG. Even if the rod tube 10 is directly integrated with the inner surface of the rod tube without interposing a layer, the rod tube 10 can be gently bulged.
The outer peripheral side of this fishing line guide 12 is the inner peripheral surface 10S of the rod tube 10.
It is integrated in an embedded form. However, in this embodiment, the buffer layer 1 is provided between the inner peripheral surface 10S of the rod pipe 10 and the fishing line guide 12.
4 is interposed. The fishing line guide 12 has its outer peripheral side buried in the rod pipe inner peripheral surface 10S with the buffer layer 14 interposed therebetween, and the inner peripheral surface 12S side of the rod pipe inner peripheral surface 10S.
Projecting against Projection height of fishing line guide is 0.3
from about 1 mm to about 1 mm to prevent the fishing line from coming into contact with the inner surface of the rod, and to secure the fishing line insertion space by forming it to less than about 1/3 of the internal diameter even when integrally fixed to the small diameter rod. However, the insertion resistance is prevented from increasing.

As described above, since the fishing line guide 12 is embedded in the inner peripheral surface 10S of the rod tube 10 and is integrally fixed at the time of heating and firing, the fixing portion 10B of the fishing line guide 12 of the rod tube 10 bulges outward. . However, since the fishing line guide 12 is wide and has a flat cross-sectional shape, the bulging portion 10B bulges wide and smoothly with respect to the other flat main body 10A.

As a result, the fiber of the bulging portion 10B does not meander much, the strength of the rod 10 is maintained, and the inner peripheral surface 12S of the wide flat fishing line guide 12 protrudes inside. It is possible to provide a high-strength fishing rod that smoothly guides the fishing line. However, the thickness of the bulging portion 10B is
It is preferable to form the layer slightly thicker than 0A to prevent the strength from being reduced. Also, the inner peripheral surface 1 of the fishing line guide 12
Since 2S has a wide flat shape, the fishing line can be smoothly guided without being damaged as compared with a small circular case.

The fishing line guide 12 can be made of a material other than the ceramics, such as a metal, a resin-based fiber reinforced material, or a metal-based fiber reinforced material. Also, the buffer layer 1
4 is a rubber having a lower elastic constant (softer) than the rod 10;
A low elasticity fiber reinforced prepreg of 25000 kgf / mm ² or less, a synthetic resin, a resin tape (or a sheet) or the like is used. The presence of the buffer layer 14 allows the bulging portion 10B to bulge more smoothly, and alleviates stress concentration in the vicinity of the fishing line guide 12 when the fishing rod is bent and deformed. Further, the transmission of the impact force received when the fishing rod falls or the like to the fishing line guide 12 can be reduced. Instead of the buffer layer 14, a prepreg or the like of the same type as the rod pipe main body or the like may be used as a reinforcing layer, and the bulging portion 10B may be formed to be thicker to prevent a reduction in strength. The main direction of the reinforcing fibers of the reinforcing layer is not limited to the circumferential direction, but may be a woven fabric.

Next, a method of manufacturing the fishing rod shown in FIG. 1 will be described. As shown in FIG. 5, a receiving member layer 22 made of an elastic member such as a silicon tube or a clay-like member is interposed on the mandrel 20, and a release agent is applied to the outside of the receiving member layer 22 to tighten the receiving member layer 22 to some extent. An annular fishing line guide 12 of a size is inserted.

Thereafter, a resin tape for the buffer layer 14 and a prepreg for the reinforcing layer are wound so as to cover the fishing line guides 12, and a fiber-reinforced prepreg is wound thereon, and the outer periphery is tightened with a tightening tape. Then, the rod tube 10 and each annular fishing line guide 12 are integrated by heating and firing. After cooling, the fastening tape and the mandrel 20 are removed, and finally the receiving member layer 22 is removed.

Since the receiving member layer 22 is present at the time of molding, the inner peripheral side of each of the annular fishing line guides 12 protrudes from the rod inner peripheral surface 10S. Also,
Due to the presence of the receiving member layer 22, the fixed part rod pipe of each fishing line guide 12 is not pushed up from inside by an excessive force,
In this embodiment, the fishing line guide has a wide and flat cross-sectional shape, and furthermore, since the buffer layer 14 is present, the rod pipe at that portion swells outward smoothly, and as a result, the meandering of the fiber is gentle, Can maintain rod strength.

FIG. 2 shows a second embodiment of the through fishing rod according to the present invention. The rod pipe in a state where a loosely tapered rod pipe 10C and a taper rod pipe 10D which is steeper than this is joined. A wide and flat fishing line guide 12 'is fixed to the rod pipe inner peripheral surface 10S via the buffer layer 14' at the joint. Inner peripheral surface 12S 'of this fishing line guide 12'
Protrudes from the extension of the inner peripheral surface of either of the rod pipes 10C and 10D, prevents the fishing line 16 from coming into contact with the rod pipe inner peripheral surface 10S including the joint portion in a state where the fishing line 16 is strongly stretched, Surface damage and wear can be reduced. The materials of the fishing line guide 12 'and the buffer layer 14' and the method of manufacturing the fishing rod are the same as those of the fishing rod of FIG.

FIG. 3 shows another embodiment of the present invention. The fishing line guide in this case is a fishing line guide 13 which is continuous in a spiral shape, and has a circular cross section having a large curvature. The forming material is the same as that of the fishing line guide 12 of FIG.
0 is interposed between the layers 15. This layer 15 is shown in FIG.
In this case, the layer 15 is formed of the same material as the buffer layer 14 and the reinforcing layer, and the layer 15 receives and reduces the bite of the fishing line guide having a large curvature, and the bulging state of the bulging portion 10B of the rod tube 10 is moderated. In addition to preventing the fiber from meandering to improve the strength of the rod tube, reinforcing the concentration of stress near the fishing line guide when the fishing rod is bent, the bulging portion 10B hits an object when the fishing rod falls, but the impact is expanded. It is received by the thick portion of the protrusion 10B, and the durability is improved by the strength enhancement by the thick wall and the buffering action of the buffer layer. Even if the rod tube 10 itself is formed thinner than this reinforcing layer, the necessary strength is obtained by the reinforcing layer portion, and the fishing rod as a whole is lightweight and high-strength.
The inner diameter of the rod tube can be made large, which contributes to a reduction in fishing line insertion resistance.

The spiral pitch is about 10 to 150 mm, preferably about 20 to 100 mm. In addition, when the reel used is a spinning reel, the fishing line wound around the spool turns out, but if it is set in the opposite direction, it is effective that the fishing line comes into contact with the inner surface of the rod pipe. Is prevented.

FIG. 4 shows a reference embodiment . The fishing line guide in this case is a fishing line guide 11 that is continuous in a spiral shape, and has a cross-sectional shape that is wide and flat and has a small curvature as in the case of FIG. Therefore, as in the case of FIG.
The swelling portion 10B of the rod tube 10 swells gently without any intervention. Therefore, when the rod tube 10 is formed, the fibers are prevented from strongly meandering, and the strength can be prevented from lowering. However, as in the case of FIG. 1, a buffer layer or a reinforcing layer can be interposed to further swell or reinforce the structure more slowly.
This fishing line guide 11 is made of fiber reinforced prepreg containing the same quality of fibers and resin as the rod tube 10 in addition to ceramics as in the above case, and is configured to also serve as reinforcement of the bulging portion 10B. Although the drop in strength of the rod tube 10 due to the meandering of the fibers described above is reinforced and the impact at the time of falling is received by the bulging portion, the swelling portion may be reinforced. Also in this case, the rod tube 10 itself may be formed thin as in the case of FIG.

In FIGS. 3 and 4, the amount of protrusion to the inside is the same as in FIG. In particular, when the present invention is applied to a rod pipe having a large flexibility such as a head rod, it is necessary to form the inside diameter and provide a fishing line guide inside while maintaining the flexibility of the rod pipe. Even if the reinforcing fiber in the circumferential direction of the rod pipe (including from the strict circumferential direction to the inclination of about 45 degrees) is disposed and formed to be about 1/3 or more of the rod pipe wall thickness, the crushing strength is increased. Since the number of reinforcing fibers in the longitudinal direction does not increase, the inhibition of the bending performance is prevented. In this way, the fishing line guide according to the present invention is easily integrated by increasing the inner diameter. However, it is inherently preferable to use the fishing line guide for the second and subsequent rods having a large inner diameter.

In any of the embodiments shown in FIGS. 1 to 4, the fishing line guide functions to reinforce the collapsing of the rod tube 10.
The deflection characteristics are hardly affected, and the design of the fishing rod is possible as before. In addition, the location of the fishing line guide can be determined from the outside by the presence of the bulging portion, and the bulging portion having a strong crushing strength can be gripped, thereby increasing the user's sense of trust and further maintaining the inside of the rod tube. In this case, since the arrangement state of the fishing line guide is known, it becomes a reference for how to wash.

The case where the fishing line guide is the individual annular ring shown in FIGS. 1 and 2 and the case of the spiral line shown in FIGS. 3 and 4 are described separately. There is no difference other than the above, and what has been described in each case can be applied to other cases. The method of manufacturing a fishing rod provided with a spiral fishing line guide may be the same as the method described with reference to FIG. 5 in the case of FIG. 1, but in addition to the method shown in FIG. Can also.

FIG. 6 is a view showing one process of a method for forming a fishing rod through the body by integrally forming the fishing line guide according to the present invention with a rod tube. A groove SP is formed at the center in the width direction of a thick band-shaped long winding member 22 ′ made of an elastic member such as a silicon member forming a receiving member layer, and this groove is formed on the surface of the mandrel 20. Packing and winding are performed so that the edges do not contact each other to form a gap. The cross-sectional shape of the groove SP is formed in a smooth curved shape. This winding member 22 '
A release agent is applied on the surface, a spiral fishing line guide is formed along the groove, and a fiber-reinforced prepreg is wound directly after a member for forming a buffer layer or a reinforcing layer is interposed thereon, or directly. Turn. Hereinafter, it is formed by an ordinary method. In this case, the rod tube 1
In the case of forming a layer in which fibers are directed obliquely in the innermost layer or the outermost layer as a reinforcement for crushing a rod tube, the helical fishing line guide is wound in a direction opposite to that of the spiral fishing line guide, or in both directions. It is preferable to perform directional winding.

According to this manufacturing method, the fishing line guide can sufficiently protrude into the rod tube depending on the depth of the groove SP and the like, and the bulging amount of the rod tube outer periphery can be adjusted. In particular, in the case of a fishing line guide having a large curvature as shown in FIG. 3, if the receiving member layer is formed by using an elastic member having such a groove SP, the bulging amount of the rod tube can be easily adjusted. Further, since the groove SP has a smooth curved cross section, even if the resin flowing at the time of heat molding flows around the fishing line guide, the tip thereof is prevented from forming a burr-like shape with a corner, so that the fishing line can be smoothly moved. It is inserted. The winding member 22 'can be removed after the mandrel 20 is pulled out. Here, the winding member 22 ′ at the front end of the mandrel 20
No groove SP is formed. This is because the tip of the rod tube is a joint portion and does not form a fishing line guide.

The depth of the groove SP is preferably about 0.3 mm or more, and the width is arbitrarily selected according to the width and the inclination angle of the fishing line guide. The thickness of the winding member 22 'is 0.5 mm
The above is preferred. Further, at the time of winding the winding member 22 ',
It is preferable to cover the wound winding member with a thin flexible member sheet in order to prevent the generation of resin burrs due to the formation of a gap between the side edges. The manufacturing method having the groove shown in FIG. 6 can be used for manufacturing the fishing rod in the case of FIG.

The large or small curvature described in the present application refers to the shape of the side (embedded side) where the fishing line guide faces the inner peripheral surface of the rod tube, and the opposite side (the side protruding into the rod tube internal space). It is not a shape. Therefore, for example, in the case of a fishing line guide having a cross-sectional shape close to a semicircle, when the surface on the side where the circle is cut is embedded in the inner surface of the rod pipe, the curvature is small, and when the semicircular arc side is embedded, the curvature is small. This is a big case. The above-mentioned bulging portion of the rod pipe refers to the outer peripheral state of the rod pipe main body layer made of the prepreg, and it is within the scope of the present invention to make the bulging portion invisible by applying a coating or the like thereon. Further, by reducing the amount of the fishing line guide embedded in the inner surface of the rod tube, the outer periphery of the rod tube can be prevented from bulging. In particular, as shown in FIG.
If a rod having P formed thereon is used, a fishing rod that does not swell in this way can be easily manufactured.

[0026]

As is apparent from the above description, according to the present invention, when the fishing line guide is firmly fixed to the inner peripheral surface of the rod tube ,
And a through fishing rod in which the strength of the rod tube is prevented from being reduced by the fixing.
Can be provided.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a through fishing rod according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of a through fishing rod according to a second embodiment of the present invention.

FIG. 3 is a longitudinal sectional view of a main part of a through fishing rod according to a third embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a main part of the fishing rod in the reference example;

FIG. 5 is an explanatory diagram of a method of manufacturing the fishing rod of FIGS. 1 and 2.

FIG. 6 is an explanatory diagram of a method of manufacturing the fishing rod of FIGS. 3 and 4.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Rod pipe 10B Swelling part 11,12,13 Fishing line guide 14,15 Buffer layer, reinforcement layer

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01K 87/00 610-620 A01K 87/04

Claims (1)

(57) [Claims] 1. A reinforcing fiber is wound on an inner peripheral surface of a rod pipe formed by winding a prepreg obtained by impregnating or mixing a resin into a high- strength fiber.
With a reinforcing layer with the main fiber direction of
A flat or circular cross section, an annular fishing line guide or
Rod spiral fishline guide, while <br/> integrally fixed to a part embedded shape by hot forming, the rod pipe outer periphery of said fishing line guide fixing portion is gradually bulged, thereby preventing a strong meandering of fibers
A through fishing rod comprising a tube .