JPH09187194A - Tip rod for internally threaded fishing rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce passage resistance of fishline and sufficiently carry out protection of a fishline by decreasing contact of fishline with a fishline supporting part on the tip rod side for internally threaded fishing rod. SOLUTION: This tip rod 14 for internally threaded fishing rod is equipped with a rod body 14A, a fishline supporting part 40 and a top guide 18. The rod body 14A has fishline passage 15a in the inside. The fishline-supporting part 40 is arranged in a part on at least tip side of inner face of the fishline passage 15a and has a trapezoid cross section and has arc part in the corner on the inner circumferential side. The top guide 18 has a guide body containing a thick wall cylinder part 51, a fitting cylindrical part 52 and a guide cylinder part 53 arranged on the tip side of the rod body 11A and a guide ring 54 fitted to the inner face of the guide body and having a semi circle-like cross section and a guide ring 54a whose radius of curvature is larger than that of the arc- like part and an inside diameter D1 smaller than inside diameter d0 of the fishiline supporting part 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tip rod, and more particularly, to a tip rod for a centering rod through which a fishing line is inserted.

[0002]

2. Description of the Related Art In a fishing rod, a fishing line passes through a fishing line path provided inside a rod body when the fishing line is fed and wound. The fishing line extends outward from the tip of the rod body. In such a fishing rod, when the fishing line passes through the fishing line path, the fishing line comes into contact with the inner surface of the fishing line path and receives a sliding resistance. When this sliding resistance is large, the fishing line is fed or wound. It is difficult to take it smoothly. Also, since the direction of the fishing line changes at the tip of the rod body,
It is easy for the fishing line to be rubbed at the corner of the rod body and cut or weaken.

Therefore, in order to reduce the sliding resistance in the fishing line path, it is known that a spiral unevenness is formed in the fishing line path and the convex portion is used as a fishing line support portion (Actual Fairness 5-). 88259). In this technique, the spiral convex portion which is the fishing line supporting portion is formed of the same material as the rod body, and the convex portion is hard to separate from the rod body and has excellent durability. Further, since the tip end surface of the convex portion has a certain area, the contact area with the fishing line is appropriate, and it is possible to prevent the occurrence of problematic contact stress on the convex portion and the fishing line.

In order to protect the fishing line at the tip of the rod body, a top guide is provided at the tip of the rod body. The top guide has a tapered tubular body made of metal or the like and spreading toward the tips, and a protective ring made of ceramics or the like mounted on the inner surface of the tubular body and having a small friction coefficient.
This tube is fixed to the outer circumference of the tip of the tip rod by fitting. In this top guide, the protection ring smoothly guides the fishing line to prevent the fishing line from breaking or weakening.

A specific technique for the top guide is disclosed in Japanese Unexamined Patent Publication No.
It is disclosed in Japanese Patent No. 117232. This technique reduces the resistance when the fishing line passes by forming the radius of curvature of the cross section of the protection ring arranged on the inner surface of the tip of the top guide to be equal to or larger than the radius of the tip of the rod body.

[0006]

By combining the above two prior arts, the contact resistance of the fishing line path and the top guide to the fishing line can be reduced, and the fishing line can be protected and the fishing line can be smoothly moved. However,
In the latter technique when combining the above-mentioned conventional techniques, the inner diameter of the protection ring of the top guide is larger than the inner diameter of the rod body, and thus there is a problem in that it contacts the convex portion of the tip formed on the inner surface of the rod body. In the former technique, this convex portion is formed by winding a tape having a rectangular cross section around the mandrel, and thus has a rectangular cross section. Therefore, if the two conventional techniques are combined, the fishing line may come into contact with the convex portion on the tip side, and the fishing line may be worn out or the passage resistance of the fishing line may increase.

An object of the present invention is to provide a tip rod for a centering rod having a top guide attached to the tip of a rod body having a convex fishing line support portion, in which the fishing line comes into contact with the fishing line support portion on the tip side of the rod body. To reduce the passage resistance of the fishing line and to sufficiently protect the fishing line.

[0008]

A tip rod for a hollow fishing rod according to the first aspect of the present invention is a rod for a fishing rod, through which a fishing line is inserted. The fishing rod has a rod body, a fishing line support portion, and a top guide. I have it. The rod body has a fishing line passage inside.
The fishing line support portion is disposed on at least a part of the inner surface of the fishing line passage on the tip side, and has a trapezoidal cross section and an arcuate portion at an inner peripheral side corner portion. The top guide has a tubular guide body arranged on the tip side of the rod body, and an arc portion mounted on the inner surface of the guide body, having a semicircular cross section, and having a curvature radius larger than that of the arc portion. It has one or a plurality of guide rings whose inner diameter on the rod body side is smaller than the inner diameter of the fishing line support portion.

In this case, since the rod main body comes into contact with the inner periphery of the fishing line support portion having a trapezoidal cross section, it is possible to prevent the fishing line from being damaged by excessive stress. Further, since the inner diameter of the guide ring on the rod body side is smaller than the inner diameter of the fishing line support portion, the fishing line is less likely to contact the fishing line support portion on the tip side, and the fishing line is less likely to be damaged on the tip side of the rod body. Further, even if they come into contact with each other, since the fishing line support portion has the arcuate portion, the passage resistance is small and the fishing line is less likely to be damaged. Further, since the radius of curvature of the arc portion of the guide ring is larger than the radius of curvature of the arc portion of the fishing line support portion, the resistance when the fishing line passes can be reduced.

[0010] A centering tip rod according to the second aspect of the invention is the first aspect of the invention.
In the rod described in (1), since the fishing line support portion is formed in a spiral shape, it is easy to manufacture. Further, since the fishing line support portion can be formed integrally with the rod body, the fishing line support portion is less likely to be peeled off from the rod body, and the fishing line support portion is less likely to be damaged. The tip rod for a hollow fishing rod according to a third aspect of the present invention is the rod according to claim 1 or 2, wherein the fishing line support portion has a width of 0.6 to 1.2 mm and a height of 0. Since it is 2 to 0.6 mm, the area of the connecting portion between the fishing rod support portion and the rod main body is appropriately secured, the strength and durability of the fishing line support portion are improved, and an appropriate space is provided from the inner surface of the fishing line path. Can support fishing line well.

Here, if the width of the outer side is too narrow, the strength and durability of the fishing line support portion deteriorate. On the other hand, if the width is too wide, the width of the inner periphery of the trapezoidal cross section increases, which increases the contact resistance with the fishing line and makes it difficult for the fishing line to move smoothly. If the height of the trapezoidal cross section is too high, the internal space of the fishing line path becomes narrow and it becomes difficult for the fishing line to pass through.
When the height is too low, when a wet fishing line passes, water accumulates between the inner surface of the fishing line path between the fishing line support portions and the fishing line and resistance to movement of the fishing line occurs, making it difficult for the fishing line to move smoothly. . Further, even if the fishing line is not wet, it easily comes into contact with the inner surface of the fishing line path, and the resistance to the fishing line increases.

[0012] A tip rod for a centering rod according to an invention 4 is an invention 1
In the fishing rod according to any one of 1 to 3, the guide main body is connected to the fishing line support portion, which is disposed on the inner surface of the tubular portion and the tubular portion which is integrally formed with the rod main body on the tip side and is thicker than the rod main body. A tip fishing line support portion, a fitting tubular portion that is fitted to the inner surface of the opening end of the tubular portion, and a tapered guide tubular portion that is screwed onto the inner surface of the fitting tubular portion and whose inner surface expands toward the tip side. And the guide ring is attached to the inner surface of the guide tube portion.

In this case, since the guide tube portion to which the guide ring is attached is screwed into the tube portion integrally formed with the rod body through the fitting tube portion, only that portion is damaged even if the guide ring is damaged. Can be exchanged. The tip rod for a middle fishing rod according to invention 5 is the fishing rod according to any one of inventions 1 to 3,
The guide main body is a resin-made cylindrical portion that is fitted on the tip side outer periphery of the rod body and has an outer surface that widens toward the tip side.
The tip end side of the tubular part has two steps with the tip end side having a larger inner diameter than the hand side, and there are two guide rings attached to each step part, and the inner diameter of the guide ring on the hand side is The inner diameter of the guide ring on the tip side which is smaller than the inner diameter of the fishing line support portion is larger than the inner diameter of the fishing line support portion.

Here, since the tubular portion is made of resin, the weight of the top guide can be reduced. Further, since the guide ring is also arranged at the tip of the tubular portion, it is difficult for the fishing line to contact the tubular portion, and the tubular portion is less likely to be damaged even if it is made of resin. Furthermore, since the outer shape is tapered, the fishing line does not easily get entangled. The tip rod for a middle fishing rod according to the invention 6 is the fishing rod according to the invention 5,
Since the guide ring on the tip side is attached from the inner surface to the end surface of the stepped portion, it becomes more difficult for the fishing line to come into contact with the resin-made tubular portion and the tubular portion is less likely to be damaged.

The tip rod for a hollow fishing rod according to the invention 7 is the invention 1
The fishing rod according to any one of 1 to 3, wherein the guide main body is continuous with the fishing line support portion, which is disposed on the inner surface of the tubular part and the tubular part formed integrally with the rod main body on the tip side and having a wall thickness thicker than that of the rod main body. It has a tip fishing line support portion and a step portion formed on the inner surface of the open end of the tubular portion, and the guide ring is directly attached to the step portion.

Here, since the guide main body is formed integrally with the rod main body, the outer diameter of the top guide is not so large as compared with the rod main body, and the fishing line is not easily entangled. The tip rod for a hollow rod according to invention 8 is the fishing rod according to any one of inventions 1 to 7, wherein the guide ring is made of cermet ceramics, so that the surface is smooth and the friction coefficient is low, and the durability is also high. . Therefore, it is possible to reduce the resistance of the fishing line and enhance the durability of the top guide.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A centering rod 10 adopting an embodiment of the present invention shown in FIG. 1 is a swing-out rod and has a grip portion G.
With a base rod 12, an intermediate rod 13 connected to the tip side of the source rod 12, and a tip rod 1 connected to the tip side of the intermediate rod 13.
And 4. The reel 20 around which the fishing line 30 is wound is mounted near the grip portion G of the base rod 12. Each of the base rod 12, the intermediate rod 13, and the tip rod 14 has a gentle conical shape, and a fishing line introducing port 16 for the fishing line 30 is formed at the tip portion of the base rod 12. A tubular top guide 18 is attached to the tip of the tip rod 14. The fishing line 30 pulled out from the reel 20 enters the inside of the base rod 12 through the fishing line introduction port 16 and is pulled out from the top guide 18.

As shown in FIGS. 2 and 6, the tip rod 14
Has a tubular rod body 14A, a fishing line passage 15a formed inside the rod body 14A, and a top guide 18 provided at the tip of the rod body 14A. Fishing line passage 1
On the inner surface of 5a, a spiral fishing line support portion 40 is provided.
It is molded integrally with A. The rod main body 14A has a first fishing line support portion 40 as shown in FIG.
The layer 14a and the second layer sequentially laminated on the outer periphery of the first layer 14a
It has a layer 14b, a third layer 14c, and a fourth layer 14d. The fishing line support portion 40 and each of the layers 14a to 14d are formed of a prepreg in which a large number of reinforcing fibers 44 are embedded. Then, the fishing line support portion 40 and the first layer 14
In the a and the fourth layer 14d, the reinforcing fibers are oriented in the circumferential direction, and in the second layer 14b and the third layer 14c, the reinforcing fibers are oriented in the axial direction. The fishing line support 40
The reinforcing fibers 44 in 1 are made of twisted yarn, and fibers called Tyranno fibers (SIC fibers) are used. This Tyranno fiber has Si, C and O elements as main components and Ti, B,
Contains N element. This fiber is used with a fiber diameter of 8.5 μm and 0.8K × 4 twists (160 turns twist). Further, as the reinforcing fibers in the other layers 14a to 14d,
Carbon fiber or the like is used.

As shown in a further enlarged view in FIG. 5, the fishing line support 40 has a trapezoidal cross section and has a wide outer periphery (see FIG. 5).
The lower side) is connected to the inner surface side of the fishing line passage 15a, and the narrow inner periphery (the upper side in FIG. 5) projects to the center side of the fishing line passage 15a. An arcuate portion 45 is provided at an inner peripheral corner portion of the fishing line support portion 40. The arcuate portion 46 is also provided at the outer peripheral corners of the fishing line support portion 40.

The width W2 of the outer periphery of the fishing line support portion 40 is set to 0.6 to 1.2 mm. Since it has a trapezoidal cross section, the width W1 of the inner periphery is slightly smaller than the width W2 of the outer periphery. Height H is set to 0.2 to 0.6 mm. As described above, the fishing line support portion 40 is formed in a spiral shape, but its lead angle θ (see FIG. 2) is set to 50 ° or less. The radius of the arcuate portion 45 at the inner peripheral corner is R
1 = 0.05 to 2 mm, and the arcuate portion 46 at the outer peripheral corner has a radius R2 = 0.05 to 2 mm.

In order to provide the fishing line support portion 40 having such a structure on the rod body 14A, the manufacturing technique disclosed in Japanese Utility Model Laid-Open No. 5-88259 can be applied. In this manufacturing process, conditions such as width, thickness, and winding lead angle of the resin tape wound around the mandrel for manufacturing the rod body 14A, the characteristics of the prepreg, the characteristics of the synthetic resin and the reinforcing fiber forming the prepreg. By adjusting
A trapezoidal shaped structure of the fishing line support 40 is formed.

The intermediate rod 13 has five layers as shown in an enlarged view in FIG. The basic structure of the base rod 12 is similar to that shown in FIG. Similar to the tip rod 14, the intermediate rod 13 has a fishing line passage 15b inside. The wall surface of the innermost first layer 13a, that is, the wall surface of the fishing line passage 15b is a smooth surface, and a convex fishing line support portion is not formed. The second layer 13b, the third layer 13c, the fourth layer 13d, and the fifth layer 1 are provided on the outer periphery of the first layer 13a.
3e are sequentially stacked. Each of the layers 13a to 13e is formed of a prepreg having a large number of reinforcing fibers embedded therein. Then, in the first layer 13a and the fifth layer 13e, the reinforcing fibers are oriented in the circumferential direction, and the second layer 13b,
Reinforcing fibers 44 in the third layer 13c and the fourth layer 13d
Are axially oriented.

As shown in FIG. 6, the top guide 18 is
Of the thick-walled tubular portion 51 integrally formed at the tip of the rod body 14A of the tip rod 14, the fitting tubular portion 52 fitted to the inner peripheral surface of the tip of the thick-walled tubular portion 51, and the fitting tubular portion 52. It has a guide cylinder portion 53 screwed to the inner peripheral surface of the tip and a guide ring 54 fitted to the inner peripheral surface of the guide cylinder portion 53. Thick wall 51
Is formed by winding a plurality of layers of prepreg around the outer peripheral surface of the tip of the prepreg to be the rod body 14A.
And are formed integrally. The fishing line support portion 40 is also formed on the inner surface of the thick-walled tubular portion 51. A reamed step portion 51a is formed on the inner surface of the tip of the thick-walled cylinder portion 51,
The fitting cylinder portion 52 is fitted and adhered to the step portion 51a.

A female screw portion 52 is formed on the inner surface of the tip of the fitting tubular portion 52.
a is formed, and the guide cylinder portion 53 is screwed into the female screw portion 52a. As a result, the guide cylinder portion 53 is attachable to and detachable from the fitting cylinder portion 52. Guide tube portion 53
Is a tapered portion 53a that spreads toward the tip side on the inner surface,
It has a step portion 53b formed on the inner peripheral side of the tapered portion 53a. A guide ring 54 is attached to this step portion 53b.

The guide ring 54 is made of a molded body of cermet ceramics. The cross-sectional shape of the guide ring 54 is a curved shape that smoothly protrudes toward the center side. The distal end of the guide ring 54 and the circular arc portion 54a is formed, a radius of curvature R ₃ is larger than the radius of curvature R ₁ of the arcuate portion 45 of the fishing line support 40. The inner diameter D ₁ of the guide ring 54 is smaller than the inner diameter d ₀ of the convex portion of the fishing line support portion of the tip rod 14.

Here, the guide ring 5 is inserted into the thick-walled cylinder portion 51 formed integrally with the rod body 14A via the fitting cylinder portion 52.
Since the guide tube portion 53 on which No. 4 is mounted is screwed, even if the guide ring 54 is damaged, a new guide ring 54
It suffices to replace only the guide tube portion 53 on which the is mounted. Next, a method for manufacturing the tip rod 14 will be briefly described.

First, a release agent made of wax or the like is applied to the outer periphery of the mandrel, and a release tape made of polypropylene resin is tightly wound on the release agent. Next, the fishing line support portion 40 to be formed, the first
Up to 4 layers 14a to 14d and a prepreg for forming the thick-walled cylinder portion 51 of the top guide 18 are wound. As described above, the fishing line support portion 40 is formed by spirally winding tape-shaped prepregs in which resin is impregnated with Tyranno fiber at predetermined intervals. Also,
Four layers of prepreg layers 14a to 14d and a thick-walled cylinder portion 51
Is formed by tightly winding a prepreg tape obtained by impregnating carbon fiber with resin.

The fishing line support portion 40 and the innermost prepreg layer 14a are formed by winding the prepreg tape in which the reinforcing fibers are oriented in the lengthwise direction of the tape, so that the fishing line support portion 40 and the prepreg layer are formed. 14a
The orientation of the reinforcing fibers is along the circumferential direction of the mandrel. In addition, the second and third prepreg layers 14b,
For 14c, a prepreg tape in which reinforcing fibers are oriented in the tape width direction is used, or a prepreg sheet in which reinforcing fibers are oriented in the longitudinal direction is wound so that the longitudinal direction is along the axial direction of the mandrel. To do.
As a result, the second and third prepreg layers 14b, 14
In c, the reinforcing fibers are in the axially oriented state.

The fourth prepreg layer 14d is manufactured in the same manner as the first prepreg layer 14a. The reinforcing fibers are oriented in the circumferential direction. In this manner, the prepreg forming the fishing line support portion 40, the four prepreg layers 14a to 14d
And, after the prepreg forming the thick-walled cylinder portion 51 is arranged, polyethylene terephthalate (PET) is formed on the outer periphery thereof.
A shape-retaining tape (not shown) made of polypropylene, polypropylene, or the like is wound and fired by a conventional method. After firing, the shape-retaining tape on the outer periphery is peeled off, and the release tape on the inner periphery is removed, whereby the rod main body 14A with the thick-walled tubular portion 51 as shown in FIGS. 3 and 5 is obtained.

Here, a fishing line passage 15a having a circular cross section is formed on the inner periphery of the rod body 14A, and a spiral fishing line support portion 40 having a trapezoidal cross section is formed on the inner peripheral surface of the fishing line passage 15a.
And the thick-walled cylinder portion 51 of the top guide 18 is integrally formed at the tip of the rod body 14A. And
The tip end of the thick-walled cylinder portion 51 is reamed to form a stepped portion 51a, a fitting cylinder portion 52 that is separately prepared is fitted therein, and the guide cylinder portion 53 in which a guide ring 54 is previously attached to the fitting cylinder portion 52 is fitted. The tip rod 145 with the top guide 18 is obtained by screwing.

In the fishing rod 10 constructed in this way,
At the time of use, the fishing line 30 fed from the reel 20 is supported by the fishing line support portion 40 from the fishing line introduction port 16 through the fishing line passages 15b and 15a, and is guided by the guide ring 54 of the top guide 18. In the hollow fishing rod 10 having such a structure, the fishing line support portion 40 is formed inside the tip rod 14 having a small inner diameter, which tends to increase sliding resistance due to the adhesion of water or the like. It is possible to prevent the sliding resistance from increasing.

The inner wall surfaces of the intermediate rod 13 and the base rod 12 are formed as smooth surfaces, and the fishing line support portion is not formed. For this reason, when the tip rod 14 is stored in the intermediate rod 13 and when the intermediate rod 13 is stored in the base rod 12, there is no portion where the ends of the tip rod 14 and the intermediate rod 13 on the side of the base rod collide. , It is possible to suppress the generation of sound at the time of storage and damage to the end part. Further, the intermediate rod 13 and the original rod 1
In the layer constituting the inner wall surface of No. 2, reinforcing fibers are oriented in the circumferential direction. Therefore, the inner wall surface becomes relatively hard, and the inner wall surface itself is less damaged. Therefore, the rod end is less likely to be caught on the inner wall surface.

Further, since the inner diameter D ₁ of the guide ring 54 is smaller than the minimum inner diameter d ₀ of the fishing line support portion 40, it becomes difficult for the fishing line to come into contact with the fishing line support portion 40 on the tip end side, and the fishing line is attached to the tip end side of the fishing line support portion 40. Will be less likely to be damaged. Further, even if they come into contact with each other, since the fishing line support portion 40 has the arc-shaped portion 45, the passage resistance is small and the fishing line is not easily scratched.
Further, since the radius of curvature R ₃ of the arcuate portion of the guide ring 54 is larger than the radius of curvature R ₁ of the arcuate portion of the fishing line support portion,
The resistance when the fishing line passes can be reduced.

Other Embodiments (a) As shown in FIG. 7, the top guide 68 has a fitting tubular portion 69 fitted to the outer peripheral surface of the tip of the rod body 14A, and a guide ring 70. May be. Fitting tube 69
Is a taper-shaped resin member whose outer surface expands toward the tip side, and has two stepped portions 69a, 6 on the inner surface of its tip, where the inner diameter gradually decreases from the tip side toward the base rod side.
9b is formed. Step 6 from the tip of the fitting cylinder 69
The tip side guide ring 70 is fitted over the inner peripheral surface of 9a. The guide ring 70 is made of a molded body of cermet ceramics. The guide ring 70 covers the tip end of the fitting cylinder portion 69, and the outer circumference of the tip end of the guide ring 70 matches the outer circumference of the fitting cylinder portion 69. The cross-sectional shape of the guide ring 70 has a curved shape that smoothly protrudes toward the center side. An arcuate portion 70 is provided at the tip of the guide ring 70.
a is formed, and the inner diameter D ₃ thereof is larger than the inner diameter d ₀ of the fishing line support portion 40 of the tip rod 14.

A guide ring 71 on the original rod side is fitted into the second step 69b of the fitting tubular portion 69. The guide rod 71 on the source rod side is also made of the same material as the guide ring 70 on the tip side. The cross-sectional shape of the guide ring 71 also has a curved shape that smoothly protrudes toward the center side. An arc portion 71a is formed at the tip of the guide ring 71, and the radius of curvature R ₄ thereof is the arc portion ₄ of the fishing line support portion 40.
It is larger than the radius of curvature R _{1 of} 5. The inner diameter D ₂ of the guide ring 71 is the inner diameter d ₀ of the convex portion of the fishing line support portion 40.
Is smaller than.

Here, since the fitting tubular portion 69 is made of resin, the weight of the top guide 68 can be reduced. Further, since the guide ring 70 is also arranged at the tip of the fitting tubular portion 69, the fishing line is unlikely to contact the fitting tubular portion 69, and the fitting tubular portion 69 is less likely to be damaged even if it is made of resin. Further, since the outer shape of the fitting tubular portion 69 is tapered, the fishing line is less likely to get entangled. (B) As shown in FIG. 8, the top guide 78 has a thick-walled tubular portion 79 integrally formed on the outer peripheral surface of the tip of the rod body 14A.
And a guide ring 80.

The thick-walled cylinder portion 79 is a member formed at the tip of the rod body 14A so as to be thicker than the rod body 14A, and a step portion 79a is formed on the inner surface of the tip. This step 79a
A guide ring 80 is fitted in the. The guide ring 80 is made of a molded body of cermet ceramics. The cross-sectional shape of the guide ring 80 has a curved shape that smoothly protrudes toward the center side. A circular arc portion 80a is formed at the tip of the guide ring 80, and its radius of curvature R
₅ is larger than the radius of curvature R ₁ of the arcuate portion 45 of the fishing line support portion 40. The inner diameter D ₅ of the guide ring 80 is
It is smaller than the inner diameter d ₀ of the convex portion of the fishing line support portion 40.

Here, since the thick-walled tubular portion 79 is formed integrally with the rod body 14A, the outer diameter of the top guide 78 is not much larger than that of the rod body 14A, and the fishing line is not easily entangled. (C) The structure of the hollow fishing rod 10 can be configured by appropriately combining structures similar to those of the normal fishing rod other than the illustrated embodiment. Reel 20 and grip section 12,
As the structure of the fishing line introducing port 16 and the like, a structure similar to that of an ordinary hollow fishing rod can be adopted.

(D) In the top guide 18, the materials of the fitting cylinder portion 52 and the guide cylinder portion 53 are the same as those of the conventional top guide, and specifically, metal, synthetic resin, wood material, Examples include ceramics. (E) The material of the guide rings 54, 70, 71, 80 is preferably a material having a small friction coefficient and excellent durability, such as the above-mentioned cermet ceramics. Ceramics other than cermet ceramics, metals, and synthetic resins can also be used.

(F) The present invention can be similarly applied to a side-by-side type hollow fishing rod instead of the swing-out rod.

[0041]

With the tip rod for a hollow fishing rod according to the present invention, the fishing line is prevented from being rubbed by excessive stress because it comes into contact with the inner periphery of the fishing line support portion having a trapezoidal cross section in the rod body. Also,
Since the inner diameter of the guide ring on the rod body side is smaller than the inner diameter of the fishing line support portion, it is difficult for the fishing line to come into contact with the fishing line support portion on the tip side, and the fishing line is less likely to be damaged on the tip side of the rod body. Further, even if they come into contact with each other, since the fishing line support portion has the arcuate portion, the passage resistance is small and the fishing line is less likely to be damaged. Further, since the radius of curvature of the arcuate portion of the guide ring is larger than the radius of curvature of the arcuate portion of the fishing line support portion, the resistance when the fishing line passes can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a hollow fishing rod according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the tip rod.

FIG. 3 is an enlarged partial view of a cross section of the tip rod.

FIG. 4 is an enlarged partial view of a cross section of the intermediate rod.

FIG. 5 is an enlarged cross-sectional view of a fishing line support portion.

FIG. 6 is an enlarged cross-sectional view of the top guide.

FIG. 7 is a view corresponding to FIG. 6 of another embodiment.

FIG. 8 is a view corresponding to FIG. 6 of another embodiment.

[Explanation of symbols]

 10 Medium Through Rod 14 Ear Tip Rod 14A Rod Main Body 15a, 15b Fishing Line Passage 18, 68, 78 Top Guide 30 Fishing Line 40 Fishing Line Support 45 Arc Section 51, 79 Thick-walled Tube 52, 69 Fitting Tube 53 Guide Tube 53a , 69a, 69b, 79a Step portion 54, 70, 71, 80 Guide ring 54a, 70a, 71a, 80a Arc portion

Claims (8)

[Claims] 1. A tip rod for a hollow rod, through which a fishing line is inserted, the rod body having a fishing line passage therein, and a trapezoidal cross-section inner peripheral side arranged at least on the tip side of the inner surface of the fishing line passage. A fishing line support portion having an arcuate portion at a corner portion, and a tubular guide body arranged on the tip side of the rod body,
One or a plurality of guides mounted on the inner surface of the guide body, having an arc portion having a semicircular cross section and a radius of curvature larger than the radius of curvature of the arcuate portion, and having an inner diameter closest to the rod body side smaller than an inner diameter of the fishing line support portion. A top guide having a ring,
A tip rod for a middle-end rod equipped with. 2. The tip rod for a hollow fishing rod according to claim 1, wherein the fishing line support portion is formed in a spiral shape. 3. The fishing line support has a cross-section trapezoidal outer peripheral width of 0.6 to 1.2 mm and a cross-section trapezoidal height of 0.2.
The tip rod for a middle-length rod according to claim 1 or 2, which has a diameter of about 0.6 mm. 4. The guide main body includes a tubular portion integrally formed with the rod main body on the tip end side and having a thickness larger than that of the rod main body, and a tip disposed on an inner surface of the tubular portion and continuous with the fishing line support portion. A fishing line support portion, a fitting tubular portion that is fitted to the inner surface of the opening end of the tubular portion, and a tapered guide tubular portion that is screwed onto the inner surface of the fitting tubular portion and whose inner surface expands toward the tip side. And the guide ring is attached to the inner surface of the guide tube portion, and the tip rod for a middle-pitch rod according to any one of claims 1 to 3. 5. The guide main body is a resin-made cylindrical portion that is fitted to the outer periphery of the rod body on the tip side and has an outer surface that expands toward the tip side, and the guide body is disposed on the inner surface of the tip side of the tip side and the tip side is at hand. Side, the inner diameter of the guide ring is smaller than the inner diameter of the fishing line support portion and is smaller than that of the tip end side. The tip rod for a hollow fishing rod according to claim 1, wherein an inner diameter of the guide ring is larger than an inner diameter of the fishing line support portion. 6. The tip rod for a centering rod according to claim 5, wherein the guide ring on the tip side is mounted from the inner surface to the end surface of the step portion. 7. The guide main body includes a tubular portion formed integrally with the rod main body on the tip end side and having a thickness larger than that of the rod main body, and a tip disposed on an inner surface of the tubular portion and continuous with the fishing line support portion. It has a fishing line support part and a step part formed in the inner surface of the opening end part of the said cylinder part, The said guide ring is directly attached to the said step part, The in any one of Claim 1 to 3. The tip rod for the middle fishing rod. 8. The tip rod for a hollow fishing rod according to claim 1, wherein the guide ring is made of cermet ceramics.