HK1193942B - Rod tip section and fishing rod having the same - Google Patents

Description

Rod tip section and fishing rod with same

Technical Field

The present invention relates to a tip section including a hollow tip portion made of metal, and a fishing rod having the tip section.

Background

In recent years, a fishing rod is formed of a fiber-reinforced resin containing reinforcing fibers, and the bending rigidity, torsional rigidity, and the like are improved, whereby the fishing rod is reduced in diameter and weight, and is easy to use. As the overall fishing rod becomes smaller in diameter, the rod tip becomes thinner, but depending on the type of fish, the rod tip may be subjected to a large load, and it becomes difficult to design the overall fishing rod with a balanced strength. Further, when the fishing line is forcibly wound by the reel even though the fishing line is in a twisted state, or when a large load is locally applied at the time of inserting the lure, the tip guide fitting portion or the tip portion may be broken.

To cope with such a problem, as a technique for improving the strength of the tip section, for example, patent document 1 proposes a tip section using a solid rod member made of metal as a tip portion (small diameter rod body). The small diameter rod body of the rod tip segment described in patent document 1 is provided with an inclined connecting part which is formed by winding and solidifying a prepreg, and a taper (taper) is formed from the front of the connecting part (the rod grip side end part of the small diameter rod body) inserted into the tip supporting part (the large diameter rod body) toward the rod tip. The rod body with large diameter inserted by the connecting part forms a hollow structure, and the polyester film is wound into a cone shape to form the hollow rod. And no step exists when the taper of the inclined connecting part is connected with the taper of the large-diameter rod body.

Patent document 1: japanese laid-open patent publication No. 2007-289067

However, the rod tip segment described in the cited document 1 is a joint structure in which a connecting portion of a metal solid rod-shaped rod tip portion (small diameter rod body) is inserted into a large diameter rod body formed of a resin member having a hollow structure, and therefore the rigidity of an overlapping portion of a rod member serving as the connecting portion and the rod body formed of the resin member is increased as compared with the front and rear portions. And the rod tip section is provided with an inclined connecting part at the rod tip side of the connecting part, so that although the rod tip section presents a smooth bending state from the small diameter rod body to the part of the large diameter rod body inserted into the opening end during hooking, the rod tip section has a structure that stress is easily concentrated on the boundary with the hollow part of the large diameter rod body connected with the solid joint part. Therefore, the rod body from the joining part to the large diameter rod body cannot be continuously and smoothly bent when the upper hook is connected.

Disclosure of Invention

In order to solve the above-mentioned problems of the prior art, it is an object of the present invention to provide a tip section and a fishing rod having the same, in which the tip section having a hollow structure at least in a portion related to a joining portion is connected to a tip support portion having a hollow structure or a solid structure, so that the tip section has high rigidity and a smooth bending state in hooking, is flexibly bent in biting of a fish, and is easily recognized as hooking of the fish.

In order to achieve the above object, the rod tip section according to the present invention comprises a rod tip portion formed by processing a Ni-Ti alloy, a Ni-Ti-Fe alloy, a Ni-Ti-Cu alloy, a β titanium alloy or a Ni-Ti-Cr alloy having an elastic elongation of 3% to 8% into a tapered shape by die forging, and having a joining portion having a hollow structure on the rod tail side; and a tip supporting part which is formed into a hollow structure by a fiber reinforced resin material, has a taper shape with diameter expanding along the rod radial direction on the rod tail side, and has a connecting part embedded into the joint part on the top end side.

According to the present invention, it is possible to provide a tip rod section and a fishing rod having the same, in which a tip rod portion having a hollow structure in at least a portion related to a joint portion is connected to a tip rod supporting portion having a hollow structure or a solid structure, so that the tip rod section has high rigidity and a smooth bending state in hooking, is bent sensitively in hooking by a fish, and easily recognizes the hooking of the fish.

Drawings

Fig. 1 is a view showing a conceptual configuration example of a rod tip section according to embodiment 1.

Fig. 2 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 2.

Fig. 3 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 3.

Fig. 4 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 4.

Fig. 5 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 5.

Fig. 6 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 6.

Description of the symbols

1-fishing rod; 2. 11-rod tip; 3. 12-a tip support; 3 a-a linker; 4-rod tip section (section 1); 5-section 2 rod (section 2); 11a, 12 a-junction site; 13-a sleeve member; a T-taper; s-straight portion.

Detailed Description

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

(embodiment 1)

Fig. 1 is a view showing a conceptual configuration example of a tip section of a fishing rod according to embodiment 1. Hereinafter, the rod tip segment of each embodiment can be equally applied to any one of the following fishing rods: divided into a multi-section rod or a single-section rod, so-called single-section rod, or a draw-out type rod, in which a plurality of sections are connected by a plug-in type or the like to form one rod. In the following description, in a certain position of the rod, the rod tip side having a small diameter is referred to as the rod tip side or the tip end side, and the rod tail side having a large diameter is referred to as the rod grip side or the rear end side.

As shown in fig. 1, the fishing rod 1 is an example of a configuration in which a plurality of rod segments (not shown) are connected to a rod grip after a rod tip segment (segment 1) 4 and a rod segment 2 (segment 2) 5. The rod tip section 4 is formed integrally by joining the rod tip section 2 made of a metal material and the tip support section 3 made of a resin material, which are the rod tips.

The tip part 2 of the present embodiment is a tapered hollow structure (so-called tubular body) in which a metal tube material is processed into a tapered shape by die forging, and the tapered hollow structure is extended in a straight axial shape from the tip to expand the rod diameter from the tip end. As the metal material forming the rod tip 2, for example, a material such as a Ni-Ti based alloy, a Ni-Ti-Fe based alloy, a Ni-Ti-Cu based alloy, a beta titanium alloy (beta phase: body-centered cubic) or a Ni-Ti-Cr based alloy is used, and a synthetic metal having an elastic elongation (elongation) of 3% or more, preferably 5 to 8% is preferable. In this embodiment, the rod tip 2 is formed to have a hollow structure (tube structure) at least at the rod grip side and is open.

The tip support portion 3 is formed in a hollow structure in a tapered shape having a diameter expanded toward the rod tail side in the rod radial direction by winding a fiber-reinforced resin sheet made of a resin impregnated with reinforcing fibers such as carbon, that is, a so-called prepreg sheet.

The film winding is different in rigidity and bending characteristics depending on the winding direction of the film fiber, but the general fiber direction is wound in a direction parallel or perpendicular to the longitudinal direction (straight axis direction) of the fishing rod. Further, by adding the fiber directions in two directions inclined at ± 45 degrees in the cross direction with respect to the longitudinal direction (straight axis direction) of the fishing rod, for example, the characteristics of the rod in terms of twisting prevention, rigidity, and bending state when hooked can be changed. In addition, a connecting part 3a embedded in the opening end of the tip part 2 is provided at the tip of the tip supporting part 3 joined to the tip part 2.

The connecting portion 3a may be in any shape of a hollow cylindrical shape, a hollow truncated cone shape, a solid cylindrical shape, and a solid truncated cone shape. The connecting portion 3a is fitted into the tip portion 2 and fixed with an adhesive or the like. In the following description, the connecting portion and the connecting member are both portions to be joined and fixed by adhesion or the like, and the socket portion and the socket member are both portions to be detachably fitted.

Although the tip supporting portion 3 of the present embodiment is exemplified by a hollow structure formed of a fiber-reinforced resin material, it may be a solid structure filled with the same or a different resin material. Further, the tip support portion 3 may be formed of a metal tube material by the same processing method as the rod tip portion 2, and may have a hollow structure or a solid structure. When both the tip part 2 and the tip supporting part 3 are made of a metal material, not only the same metal material but also metals having different characteristics can be combined to set a desired bending state and rigidity. For example, when the super-elastic effect and the soft bent state are expected for the rod tip 2, an Ni — Ti alloy can be used, and various combinations such as β titanium alloy can be used in consideration of the weight reduction of the tip supporting portion 3.

In addition, if the fishing rod is of a standard in which the fishing line guide is provided, the base portion of the guide may be arranged at the joint portion, and the wire or the resin material used for fixing the base portion may be used for reinforcement of the joint portion.

Although the rod tip part 2 of the present embodiment has been described by taking a hollow structure as an example, if the joint part or the joint portion has at least a hollow structure, the strength may be improved by embedding a filler in the hollow structure on the rod tip side, for example, by dissolving a resin member and then embedding it densely to form a solid structure.

Further, an insertion portion 3b formed in a straight cylindrical shape (solid) or a cylindrical shape (hollow) is provided in a projecting manner on the rod grip side of the tip support portion 3 so as to be detachably inserted into the subsequent rod 5 of the 2 nd stage. The spigot portion 3b is detachably fitted into the joint open end of the subsequent 2 nd rod 5.

As described above, according to the present embodiment, the rod tip part of the rod tip section having a hollow structure formed of a metal material has higher rigidity and higher sensitivity than the rod tip part formed of a fiber-reinforced resin. And if the diameter is the same, the weight can be reduced compared with the rod tip part of the solid structure. By selecting the metal material and the thickness (the thickness of the rod), the rigidity of the rod tip section of the hollow structure, the bending state (the bending shape of the rod when fishing) when hooking, and the diameter of the rod can be designed relatively freely according to the design specifications.

Further, in the present embodiment, since the connecting portion of the tip supporting portion 3 is fitted into the inside of the opening of the rod tip portion, the rigidity of the joint portion can be reduced and the curved state at the time of hooking without a sudden change in curvature can be realized, compared with the externally fitted structure in which the connecting portion (hollow structure) of the tip supporting portion 3 is wrapped around the rod tip portion. Therefore, not only the size of the load (the size of the fish being fished) can be known by the feeling imparted to the hand, but the size of the load can be seen by the angler.

(embodiment 2)

Next, embodiment 2 will be explained. Fig. 2 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 2. The present embodiment has a so-called telescopic joint structure in which the tip part and the tip support part of the tip section are joined by using a connecting member of a straight part S.

The rod tip portion 11 of the present embodiment is formed to have a hollow structure using a metal material similar to that of embodiment 1, or at least in the vicinity of the joint portion. The tip part 11 is formed with a tapered part T on the tip side and a straight part S only at the joint part 11a of the hollow structure of the fitting sleeve member 13. The tip supporting portion 12 is formed as a hollow tapered portion T having a diameter expanded toward the rod end side in the rod radial direction by winding a fiber-reinforced resin sheet made of a resin impregnated with reinforcing fibers such as carbon, that is, a so-called prepreg sheet. The tip support portion 12 is also formed with a straight portion S only at the joining portion 12a of the hollow structure into which the sleeve member 13 is fitted.

The sleeve member 13 is formed into a straight tubular shape (hollow tube: hollow structure) or a cylindrical shape (solid structure) using a resin material equivalent to the tip support portion 12, and has an outer diameter of an inner diameter that can be fitted into each joint portion without a gap. The sleeve member 13 is not limited to a resin material, and may be formed into a hollow structure using a metal material similar to the rod tip 11. In addition, the rigidity can be adjusted by selecting the kind of metal and adjusting the thickness.

Generally, there is a stepwise difference in rigidity between the rod tip 11 fitted into the sleeve member 13 and the boundary between the overlapping portion and the non-overlapping portion of the sleeve member 13. The same applies to the boundary of the portion of the tip support portion 12 that overlaps the sleeve member 13. In contrast, by making the sleeve member 13 hollow or slightly reducing the rigidity of the sleeve member 13, a part of the rise or fall of the rigidity step at the boundary portion can be inclined, and the variation range of the rigidity can be made small. That is, the change in rigidity from the rod tip part 11 to the tip support part 12 can be reduced, and the stepwise change in bending characteristics at the time of hooking can be alleviated, whereby the sensitivity transmission can be further improved.

The length of the sleeve member 13 is at least the sum of the lengths of the engaged portions 11a and 12 a. The sleeve member 13 shown in fig. 2 is formed slightly longer than the added length, and is formed so that a gap is present at the time of joining. Although this gap is not necessarily required, it is a distance used as a bonding margin or a distance in consideration of thermal expansion of at least the metal forming the tip portion 11. In addition, the gap may be used as a filling portion of the adhesive when the rod is coated. For example, the gap may be filled with epoxy resin or the like, and the joint portions 11a and 12a may be processed to be connected to each other flatly, and the member filling the gap is preferably a member having elasticity even in a cured state.

The sleeve member 13 may be formed of not only one material but also a hollow laminate structure formed of an outer layer of a metal material and an inner layer of a resin material, for example. Or, conversely, a hollow laminate structure formed of an outer layer of a resin material and an inner layer of a metal material. Further, the outer layer may be a cylindrical outer layer made of a metal material and a solid structure in which a resin material is filled in the cylindrical outer layer.

According to the present embodiment, the sleeve member is positioned inside the tip portion and the tip support portion to be joined, so that smooth joining is possible without increasing the outer diameter of the joined portion. Further, since the engagement portion is the straight portion S, for example, in the case of a fishing rod to which a fishing line guide is attached, the guide base is disposed in the straight portion, whereby the fishing line guide can be more stably fixed. Further, by disposing the guide base portion across the gap portion, the joint portion of the tip portion and the tip supporting portion can be more firmly joined.

(embodiment 3)

Next, embodiment 3 will be explained. Fig. 3 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 3. The present embodiment has a reverse plug-in type joint structure in which a connecting portion 15 provided on the tip end side of a tip supporting portion 14 is fitted into the rod grip side opening end of a rod tip portion 11 of a rod tip section.

The rod tip 11 of the present embodiment is formed of the same metal material as that of embodiment 1, and has a hollow structure extending in a straight axial direction from the rod tip, or has a hollow structure at least in the vicinity of the joint portion, and has a tapered portion T formed on the rod tip side, and a straight portion S formed only in the joint portion 11a of the hollow structure having an opening end into which the connecting portion 15 is fitted.

The tip supporting portion 14 is formed as a tapered portion T having a solid structure by winding a fiber-reinforced resin sheet in which reinforcing fibers such as carbon are impregnated with a resin.

A straight tubular cylindrical (hollow tube: hollow structure) or cylindrical (solid structure) connecting portion 15 having an outer diameter capable of fitting into the inner diameter of the joint portion 11a without a gap is provided at the tip end of the tip supporting portion 14. In addition, the tip supporting portion 14 may be formed in a hollow structure. The tip supporting portion 14 may be formed in the straight portion S to have the same length as the engaging portion 11a in the vicinity of the tip.

The length of the connecting portion 15 has at least the length of the engagement portion 11a (length to be fitted). The connecting portion 15 shown in fig. 3 is formed slightly longer than this length, and is formed so that a gap is present at the time of joining. Although this gap is not necessarily required, if set, it is more than a distance that takes into account thermal expansion of at least the metal forming the rod tip portion 11. Further, as in the case of embodiment 1, it is also possible to fill the gap with, for example, epoxy resin or the like, and to process the gap so as to connect the joint portion 11a and the tip supporting portion 14 flatly, and it is preferable that the gap-filling member has elasticity even in a cured state.

According to the present embodiment, the connection portion provided at the tip end of the tip support portion is fitted into the connection portion of the hollow structure of the rod tip portion for joining, whereby smooth joining is possible without increasing the outer diameter of the joining portion. Further, by disposing the guide base portion between the tip portion 11 and the tip support portion 14 across the gap portion, the joining portion between the tip portion and the tip support portion can be joined more firmly.

(embodiment 4)

Next, embodiment 4 will be explained. Fig. 4 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 4. The present embodiment has a plug-in type joint portion, in which a connecting portion 22a provided at the tip end side of a tip support portion 22 is fitted into the opening end of a joint portion 21a of a rod grip side of a tip portion 21 of a tip rod section, the rod diameter of which is expanded in a stepwise manner (diameter is increased).

The rod tip part 21 of the present embodiment is formed of a metal material similar to that of embodiment 1, and has a hollow structure extending from the rod tip in a straight shaft shape, or at least in the vicinity of the joint part. The rod body whose rod diameter is expanded from the rod tip side to the tapered part T is formed into a step shape in the rod diameter from the tapered part T expanded diameter (extension part 21b) to the connecting part 22a before the joint part 21a, and the joint part 21a is extended in the straight part S and is provided with an opening end.

In this embodiment, the joining part 21a and the extension part 21b are formed to keep the same thickness as the thickness (wall thickness) of the rod body extending from the rod tip part 21 side, or the thickness of the rod body is formed to be thinner. This is because the rigidity of the rod body itself is increased when the rod diameter is expanded, so that the rigidity of the rod body before extension can be maintained even if the thickness is thin, and the rigidity of the joint portion can be adjusted by adjusting the thickness of each of the joint portion 21a, the extension portion 21b, and the connecting portion 22 a.

The tip supporting portion 22 has a hollow structure formed by winding a fiber-reinforced resin sheet in which reinforcing fibers such as carbon are impregnated with resin, and the connecting portion 22a is formed as a straight portion S and then formed to expand toward the rod tail side in the rod diameter at the tapered portion T. In fig. 4, the tip supporting portion 22 having a hollow structure is shown as an example, but may have a solid structure including the connecting portion 22 a.

As described above, according to the present embodiment, the metal material forming the rod tip part 21 does not have a directional characteristic in rigidity as in the case of the fiber-reinforced resin sheet, and the rod tip section having a small change in rigidity in the front and rear of the joint part can be realized by forming the joint part 21a and the extension part 21b in a constant thickness in which the rod diameter of the rod body extending from the rod tip side to the tapered part T is expanded. Further, by properly setting the thickness or the overlapping amount (the length of insertion) of the joining part 21a, the extension part 21b and the tip support part 22 constituting the joining part, the rigidity can be adjusted, and the desired bending state of the tip rod section can be designed.

(embodiment 5)

Next, embodiment 5 will be explained. Fig. 5 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 5. The present embodiment has a plug-in type joint portion in which a connecting portion 31a of a tip portion 31 of a tip section is fitted from an opening end 32b of a joint portion 32a provided on the tip end side of a tip support portion 32 after the diameter of the connecting portion 31a is reduced (diameter is reduced) on the grip side.

The rod tip part 31 of the present embodiment is formed of a metal material similar to that of embodiment 1, and has a hollow structure extending from the rod tip in a straight axial direction, or at least the vicinity of the joint part and the connecting part 31a are formed in a hollow structure. In this shape, the rod body whose rod diameter is expanded and extended from the tip side to the tip side in the tapered portion T is reduced in diameter (reduced diameter portion 31b) in the tapered portion T in front of the joint portion, and is connected to the connecting portion 31a of the straight portion S.

The tip supporting portion 32 has a hollow structure formed by winding a fiber-reinforced resin sheet formed by impregnating a reinforcing fiber such as carbon with a resin, and the joining portion 32a into which the connecting portion 31a is fitted is formed as a straight portion S and is formed so as to expand toward the rod tail side in the rod diameter at the tapered portion T. Further, as shown in fig. 5, the opening end 32b of the engaging portion 32a forms a reverse inclined surface corresponding to the inclination (tapered surface T) of the reduced diameter portion 31b, and when the connecting portion 31a is fitted into the tip supporting portion 32, the rod tip portion 31 is smoothly connected with the tip supporting portion 32 without a step. In fig. 5, the tip supporting portion 32 having a hollow structure is shown as an example, but may have a solid structure in which the rod interior is filled with a resin member or the like from the middle of the rod.

In this embodiment, the rod body of the rod tip part 31 and the connecting part 31a is formed to maintain the same thickness, or the connecting part 31a and the reduced diameter part 31b are formed to be thicker. This is because the rigidity of the rod body itself becomes smaller after the diameter of the rod is reduced, and therefore, the rigidity of the connecting portion 31a can be maintained to be the same as the rigidity of the tip portion 31 by maintaining the thickness or increasing the thickness. Of course, the rigidity of the joint portion can be adjusted by adjusting the thickness of the reduced diameter portion 31b, the thickness of the connecting portion 31a, and the thickness of the joint portion 32 a. Thereby, the variations in rigidity of the joint portion and the tip portion 31 and the tip supporting portion 32 connected to the joint portion can be reduced, respectively.

As described above, according to the present embodiment, since the connecting part 31a of the rod tip part 31 is inserted into the connecting part of the tip support part 32 and the connecting part 31a is abutted against the joining part 32a at the inclined surface, the rigidity acting on the rod body is dispersed, thereby suppressing the occurrence of a large change in curvature and obtaining a desired bending state of the tip section.

(embodiment 6)

Next, embodiment 6 will be explained. Fig. 6 is a view showing an example of the structure of the joining part of the rod tip section according to embodiment 6. The present embodiment has a plug-in type joint part, a connecting part 42a arranged at the top end side of the tip supporting part 42 is embedded into a joint part 41a which becomes a hollow structure from the middle of the tip part 41 of the rod tip section.

The rod tip 41 of the present embodiment is formed by using a cylindrical metal material similar to that of embodiment 1, and is extended in a straight-axis shape from the rod tip by taper-working using die-forging, thereby forming a taper in which the rod diameter is enlarged from the tip. Depending on the degree of pressing during the tapering, the tube shape of the tapered tip portion may be crushed from the hollow structure 41c to form the solid structure 41 b. As shown in fig. 6, the rod tip part 41 forms a hollow structure 41c at least near the junction part.

By winding the fiber-reinforced resin sheet, the tip support portion 42 has a solid structure and is tapered in the rod radial direction and the rod tail side extension. At the tip end of the tip supporting portion 42, a connecting portion 42a formed in a cylindrical shape (solid structure) for fitting the hollow structure 41c is provided. The connecting portion 42a is fitted into the joining portion 41a of the tip portion 41 and fixed with an adhesive or the like.

As described above, according to the present embodiment, since the joining part is the joining where the connecting part of the tip supporting part 42 is embedded in the joining part 41a of the hollow structure, the change of the rigidity can be reduced, thereby suppressing the great change of the curvature of the rod body and obtaining the desired bending state of the tip section of the rod.

Claims (6)

1. A rod tip section is composed of a rod tip part and a tip supporting part, and is characterized in that the rod tip part is processed into a sharp cone shape by die forging processing of Ni-Ti alloy, Ni-Ti-Fe alloy, Ni-Ti-Cu alloy, beta titanium alloy or Ni-Ti-Cr alloy with 3-8% elastic elongation, and has a joint part with a hollow structure at the rod tail side,

the tip supporting portion is formed of a fiber-reinforced resin material into a hollow structure, has a tapered shape with a diameter expanded toward the rod tail side in the rod radial direction, and has a connecting portion fitted into the joint portion on the tip side.

2. A rod tip section is composed of a rod tip part and a tip supporting part, and is characterized in that the rod tip part is processed into a sharp cone shape by die forging processing of Ni-Ti alloy, Ni-Ti-Fe alloy, Ni-Ti-Cu alloy, beta titanium alloy or Ni-Ti-Cr alloy with 3-8% elastic elongation, and the rod tip section is provided with a 1 st joint part with a straight hollow structure at the rod tail side,

the tip supporting part is formed by fiber reinforced resin material into solid structure, has a taper shape with diameter expanding on the rod radial direction rod tail side, and has a 2 nd joint part of the solid structure which is embedded into the joint part and is straight on the rod tip side.

3. A rod tip section is composed of a rod tip part, a tip supporting part and a connecting part, and is characterized in that the rod tip part is processed into a sharp cone shape by a Ni-Ti alloy, a Ni-Ti-Fe alloy, a Ni-Ti-Cu alloy, a beta titanium alloy or a Ni-Ti-Cr alloy with 3 to 8 percent of elastic elongation through die forging processing, and the rod tail side is provided with a 1 st joint part with a straight hollow structure,

the tip supporting part is formed into a hollow structure by fiber reinforced resin material, has a cone shape with diameter expansion on the rod radial direction rod tail side, and has a 2 nd joint part of a straight hollow structure on the rod tip side,

the connecting portion is formed of a fiber-reinforced resin material, has a cylindrical shape having a hollow structure or a cylindrical shape having a solid structure, has an outer diameter that allows fitting of an inner diameter of each of the joining portions without a gap, and is joined by fitting both ends thereof into the 1 st joining portion and the 2 nd joining portion.

4. A rod tip section, which consists of a rod tip part and a tip supporting part, and is characterized in that,

the tip portion is a joint portion of a hollow structure in which a Ni-Ti alloy, a Ni-Ti-Fe alloy, a Ni-Ti-Cu alloy, a beta titanium alloy, or a Ni-Ti-Cr alloy having an elastic elongation of 3 to 8% is processed into a tapered shape by die forging, and the rod diameter on the rod tail side is expanded to extend straight,

the tip supporting portion is formed of a fiber-reinforced resin material into a hollow structure or a solid structure, has a tapered shape in which the diameter of the tip supporting portion increases toward the rod tail side, and has a connecting portion of a hollow structure or a solid structure extending in a straight shape, the connecting portion being fitted into the joint portion and forming a flat surface with the surface of the joint portion when fitted.

5. A rod tip section, which consists of a rod tip part and a tip supporting part, and is characterized in that,

the tip of the rod is formed by processing a Ni-Ti alloy, a Ni-Ti-Fe alloy, a Ni-Ti-Cu alloy, a beta titanium alloy or a Ni-Ti-Cr alloy having an elastic elongation of 3 to 8% into a tapered shape by die forging, and has a connecting portion of a hollow structure in which the rod diameter is reduced and the rod diameter extends straight on the rod tail side,

the tip supporting portion is formed of a fiber-reinforced resin material into a hollow structure, has a tapered shape in which the diameter of the tip supporting portion increases in the rod radial direction toward the rod tail side, has a joint portion of the hollow structure extending in a straight shape, is fitted into the connecting portion, and forms a flat surface with the surface of the connecting portion when fitted.

6. A fishing rod having a rod tip section according to any one of claims 1 to 5.