Fishing rod

The fishing rod integrates a lightweight, resin-based fishing line connecting portion with aligned reinforcing fibers to enhance sensitivity and ease of use, addressing the need for high sensitivity and secure connection without abrupt tone changes.

JP2025101843APending Publication Date: 2025-07-08SHIMANO INC
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Patent Information

Application Number
JP2023218897
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-26
Publication Date
2025-07-08

AI Technical Summary

Technical Problem

Existing fishing rods face challenges in providing high sensitivity for instantaneously sensing fish bites, while maintaining a secure and easy connection of the fishing line, and avoiding abrupt changes in tone due to increased inertia and weight at the tip portion.

Method used

A fishing rod design with a fishing line connecting portion made of resin containing reinforcing fibers, integrated with the rod body, featuring an annular groove extending in the circumferential direction, and aligned reinforcing fibers at a 45-degree angle, which enhances sensitivity and ease of connection without abrupt tone changes.

Benefits of technology

The design improves sensitivity by reducing weight and inertia at the tip, allowing for easy line attachment and detachment, while maintaining consistent tone and mechanical strength.

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Abstract

To provide a fishing rod that has high sensitivity capable of instantaneously sensing hitting of a fish and has a tone that does not suddenly change along an axial direction.SOLUTION: A fishing rod 20 includes a plurality of blanks including a first node 21. A fishing line connection part 30 is formed in a distal end portion of the first node 21. The fishing line connection part 30 is sintered by prepreg together with the first node 21. The prepreg is a sheet-like member obtained by impregnating a resin to a carbon fiber. By applying machine work on the fishing line connection part 30, an annular groove 35 is processed. The carbon fiber is aligned along a direction of 45 degrees with respect to an axial direction 27.SELECTED DRAWING: Figure 2
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Description

Technical Field

[0001] This invention relates to the structure of a fishing rod, particularly to the structure of the tip portion of a fishing rod.

Background Art

[0002] A fishing rod (typically an extendable rod) has a fishing line connected to its tip portion. In actual fishing, it is required that the fishing line be securely connected to the tip portion of the extendable rod and be easily detachable. To meet this requirement, conventionally, a fishing line connector has been provided at the tip portion of the extendable rod (see, for example, Patent Document 1 and Patent Document 2).

[0003] By the way, in catfish fishing, stream fishing, etc., it is important for the angler to be able to recognize that a fish has hit. Therefore, a structure has been proposed in which a portion with a large inertia is formed at the tip portion of the extendable rod, and the vibration transmitted from the fishing line when a fish hits is propagated to the rod butt (to the angler's hand) using the inertia (see, for example, Patent Document 3).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] On the other hand, in actual fishing, there are cases where an angler wants to instantaneously sense so-called a fish strike (that is, the target fish has attacked the rig) rather than recognize that a fish has hit. The ease of sensing a strike through this fishing rod is particularly referred to as the "sensitivity of the fishing rod," and depending on the type of target fish, a highly sensitive fishing rod may be required.

[0006] In the fishing rods disclosed in Patent Document 1 and Patent Document 2, the fishing line connector is configured as a separate member from the fishing rod and is attached to the tip of the fishing rod. With such a structure, the number of parts of the fishing rod increases, and the weight (i.e., inertia) of the tip portion of the fishing rod becomes large. That is, the inertia of the tip portion of the fishing rod increases, and the sensitivity of the fishing rod decreases. Although Patent Document 3 does not disclose a fishing line connector, it discloses a structure in which a portion having high rigidity and large weight is integrally formed at the tip of the fishing rod. However, since the outer size of this portion is large and the inertia is extremely large, the sensitivity of the fishing rod is significantly reduced.

[0007] The fishing rods disclosed in the above-mentioned patent documents have a structure that makes it difficult for anglers to sense the bite of fish (difficult to increase the sensitivity of the fishing rod), and does not meet the demand for high sensitivity of fishing rods. In addition, in the fishing rod disclosed in Patent Document 3, there is also a disadvantage that the mechanical strength of its tip portion (particularly the tensile strength in the longitudinal direction of the fishing rod) becomes extremely large, and the so-called tone of the fishing rod changes discontinuously.

[0008] Therefore, an object of the present invention is to provide a fishing rod that can instantaneously sense the bite of a fish (high sensitivity), the fishing line is securely connected and can be easily attached and detached, and moreover, the tone does not change abruptly locally.

Means for Solving the Problems

[0009] (1) In order to solve the above problems, the fishing rod according to the first aspect of the present invention includes a fishing rod body and a fishing line connecting portion provided on the fishing rod body to which a fishing line is connected. The fishing line connecting portion has an annular groove extending in the circumferential direction of the fishing rod body and is integrally formed with the fishing rod body by a resin containing reinforcing fibers.

[0010] According to this configuration, a fishing line connecting portion is formed integrally with the fishing rod body, and since this fishing line connecting portion is made of a resin containing reinforcing fibers, the fishing line connecting portion is lightweight and compact, and the annular groove is also formed simultaneously. Thereby, the sensitivity of the fishing rod is improved. In addition, since the annular groove extends in the circumferential direction of the fishing rod body, the fishing line can be easily and surely connected to this annular groove, and the attachment and detachment of the fishing line are also easy. Furthermore, since the fishing line connecting portion is lightweight and compact, the tone of the fishing rod does not change abruptly locally at this fishing line connecting portion.

[0011] (2) In the fishing rod of the second aspect according to the first aspect of the present invention, the reinforcing fibers extend aligned in a direction of 45 degrees with respect to the axial direction of the fishing rod body.

[0012] In this configuration, it is possible to suppress the extreme increase in the axial rigidity of the fishing line connecting portion, that is, the extreme increase in the longitudinal tensile strength of the tip portion of the fishing rod. Therefore, the tone of the fishing rod does not change abruptly and discontinuously locally.

[0013] (3) In the fishing rod of the third aspect according to either the first aspect or the second aspect of the present invention, the fishing line connecting portion is made of a prepreg provided with a resin containing the reinforcing fibers.

[0014] In this configuration, the fishing line connecting portion is easily fired.

[0015] (4) In the fishing rod of the fourth aspect according to any one of the first aspect to the third aspect of the present invention, the fishing line connecting portion is composed of a first connecting portion and a second connecting portion arranged side by side at a predetermined interval along the axial direction of the fishing rod body, and the annular groove is partitioned by the first connecting portion, the second connecting portion, and the fishing rod body.

[0016] In this configuration, by forming the first connecting portion and the second connecting portion, the annular groove is partitioned therebetween. Therefore, special processing for forming the annular groove is not required.

[0017] (5) In the fishing rod of the fifth aspect according to the fourth aspect of the present invention, the first connecting portion is made of a first prepreg including a resin containing a first reinforcing fiber, and the second connecting portion is made of a second prepreg including a resin containing a second reinforcing fiber.

[0018] In this configuration, it is possible to make the rigidity on both sides of the annular groove different in the fishing line connecting portion. Thereby, it is possible to further reduce the weight of the fishing line connecting portion and improve the sensitivity of the fishing rod.

[0019] (6) In the fishing rod of the fifth aspect according to the fourth aspect of the present invention, at least one of the first reinforcing fiber and the second reinforcing fiber extends aligned in a direction of 45 degrees with respect to the axial direction of the fishing rod body.

[0020] In this configuration, in the design of the fishing line connecting portion, the adjustment of its rigidity becomes easy. Therefore, the degree of freedom in designing the tone and sensitivity of the fishing rod increases.

[0021] (7) In the fishing rod of the seventh aspect according to the fifth or sixth aspect of the present invention, the first reinforcing fiber is a fiber different from the second reinforcing fiber.

[0022] In this configuration, for example, the specific gravity of each of the first reinforcing fiber and the second reinforcing fiber can be made different. Thereby, the sensitivity of the fishing rod can be further improved.

[0023] (8) In the fishing rod of the eighth aspect according to any one of the first to seventh aspects of the present invention, the length of the fishing line connecting portion along the axial direction of the fishing rod body is 10 mm or more and 15 mm or less.

[0024] In this configuration, since the size of the fishing line connecting portion is extremely small and lightweight, the sensitivity of the fishing rod is improved.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

MODE FOR CARRYING OUT THE INVENTION

[0026] Hereinafter, preferred embodiments of the present invention will be described with appropriate reference to the drawings. It should be noted that this embodiment is merely one aspect of the fishing rod according to the present invention, and it goes without saying that the embodiment may be changed without changing the gist of the present invention.

[0027] FIG. 1 is a front view of a fishing rod 20 according to an embodiment of the present invention.

[0028] This fishing rod 20 is composed of five blanks (blank 21 to blank 25) with different outer diameters and is assembled in a so-called telescopic type. The blanks 21 to 25 (corresponding to the "fishing rod body" described in the claims) are also each referred to as a "section", and are referred to as the first section 21 and the second section 22 in the order of decreasing outer diameter. The first section 21 is the section that constitutes the tip, and its outer diameter is the smallest among all the sections. The fifth section 25 is particularly referred to as the "base section", and the fourth section 24 adjacent to the base section is particularly referred to as the "section above the base section". In the present embodiment, the fishing rod 20 is a so-called extended rod and is used, for example, for stream fishing. However, the number of blanks is not particularly limited, and an optimal design is appropriately made according to the target fish.

[0029] In the figure, reference numeral 27 indicates the center of the fishing rod 20 (each section), and the direction along this center is the axial direction. In this specification, the direction along the center of the fishing rod 20 is referred to as the axial direction 27. Reference numeral 28 indicates the front side of the axial direction 27, and reference numeral 29 indicates the rear side of the axial direction 27.

[0030] The first section 21 to the base section 25 are configured in a known manner. For example, a resin sheet (prepreg) reinforced with reinforcing fibers (typically carbon fibers) is cut into a predetermined shape, and this is wound around a mandrel. By subjecting this to a predetermined heat treatment, the cylindrical first section 21 to the base section 25 are baked. In this embodiment, the tip portion (the end portion on the front side 28 of the axial direction 15) of the first section 21 has a solid structure. However, the entire first section 21 may have a solid structure or a hollow structure. The outer shape of each of the first section 21 to the base section 25 forms a predetermined taper. This taper is appropriately designed according to the setting of the action of the fishing rod and the type of target fish, etc.

[0031] The first section 21 is retractably housed inside the second section 22. The outer diameter of the rear end of the first section 21 is larger than the outer diameter of the tip. Also, the rear end diameter of the first section 21 is set larger than the tip diameter of the second section 22. Therefore, when the first section 21 is pulled out from the second section 22, the rear end portion of the first section 21 fits in a state of overlapping the tip portion of the second section 22 by a predetermined dimension, and thereby, both are fixed. Note that the relationship between the second section 22 and the third section 23, the relationship between the third section 23 and the upper base section 24, and the relationship between the upper base section 24 and the base section 25 are the same as the relationship between the first section 21 and the second section 22. In this embodiment, a grip 26 is provided at the rear end portion of the base section 25. This grip 26 may be omitted.

[0032] The feature of the fishing rod according to this embodiment lies in the structure of the first joint 21. Specifically, a fishing line connecting portion 30 to which a fishing line is connected is provided at the tip of the first joint 21, that is, at the end of the front side 28 in the axial direction 15. That is, this fishing line connecting portion 30 is made of a resin reinforced with the carbon fiber and is integrally formed with the first joint 21.

[0033] FIG. 2 is an enlarged view of the main part in FIG. 1, and FIG. 3 is a perspective view of the fishing line connecting portion 30. These figures show the structure of the fishing line connecting portion 30 in detail.

[0034] As shown in these figures, the tip of the first joint 21 has a small-diameter portion 31, a large-diameter portion 33, and a diameter-expanded portion 32. In order from the rear side 29 of the first joint 21, the small-diameter portion 31, the diameter-expanded portion 32, and the large-diameter portion 33 are continuous. The small-diameter portion 31 and the large-diameter portion 33 are cylindrical, and the outer diameter 44 of the small-diameter portion 31 is set to be 0.6 mm or more and 1.8 mm or less, and the outer diameter 45 of the large-diameter portion 33 can be set to be 0.8 mm or more and 4.0 mm or less.

[0035] An annular groove 35 is provided at a predetermined position on the front side 28 of the large-diameter portion 33. This annular groove 3 is formed by reducing the diameter of a part of the large-diameter portion 33. The annular groove 35 opens to the outer peripheral surface 36 of the large-diameter portion 33 and extends along the circumferential direction of the large-diameter portion 33 (that is, the circumferential direction of the first joint 21). The distance 40 from the tip surface 39 of the large-diameter portion 33 (that is, the tip surface of the first joint 21) to the annular groove 35 can be set to be 0.3 mm or more and 8.0 mm or less. The width 37 of the annular groove 35 can be set to be 0.3 mm or more and 4.0 mm or less. The depth 38 of the annular groove 35 can be set to be 0.1 mm or more and 1.5 mm or less. The length 41 (the length along the axial direction 27) of the fishing line connecting portion 30 is set to 12 mm in this embodiment, but it is preferably set to be 10 mm or more and 15 mm or less.

[0036] The diameter-expanded portion 32 is disposed between the small-diameter portion 31 and the large-diameter portion 33 and connects the two continuously along the axial direction 27. For this reason, the diameter-expanded portion 32 has a frustum shape. The length of the diameter-expanded portion 32 (the length along the axial direction 27) is set to be 2.0 mm or more and 15.0 mm or less, and the taper ratio formed by the outer peripheral surface 34 of the diameter-expanded portion 32 is set to be 20 / 1000 or more and 70 / 1000 or less.

[0037] FIG. 4 is a diagram schematically showing a method of forming the fishing line connecting portion 30.

[0038] In this embodiment, the fishing line connecting portion 30 is formed by the procedure shown in FIGS. (a) to (d) of this figure.

[0039] As shown in FIG. (a) of this figure, the prepreg 51 cut into a predetermined shape is wound around a mandrel (not shown). This prepreg 51 is formed by impregnating carbon fibers (corresponding to the "reinforcing fibers" described in the claims) with a thermosetting resin (typically an epoxy resin) and forming it into a sheet shape. The first node 21 is formed by this prepreg 51.

[0040] A prepreg 52 (corresponding to the "prepreg" described in the claims) is disposed at the end of the prepreg 51, that is, at the end on the front side 28 in the axial direction 15. The prepreg 52 is formed by impregnating carbon fibers (corresponding to the "reinforcing fibers" described in the claims) with a thermosetting resin (typically an epoxy resin) and forming it into a sheet shape. The prepreg 52 is cut into a trapezoidal shape as shown in FIG. (a) in advance. This prepreg 52 is disposed so as to overlap the prepreg 51 from the bottom side 53 side and is wound so that the upper side 43 becomes the outermost layer. At this time, the prepreg 52 is disposed so that the carbon fibers 54 contained in the prepreg 52 are along the direction at 45 degrees with respect to the axial direction 27.

[0041] When the prepreg 52 is arranged in this way and the prepreg 52 is wound on the prepreg 51, as shown in Fig. (b) of the same figure, the carbon fibers 54 are aligned in a direction at an angle of 45 degrees with respect to the axial direction 27 while intersecting each other. The effects of arranging the carbon fibers 54 in this way will be described later.

[0042] As shown in Fig. (c) of the same figure, a molding tape (not shown) is wound around the prepreg 51 and the prepreg 52 so as to cover them, and the shape of the first node 21 to be molded is adjusted. In this state, by heating for a predetermined time under a predetermined environmental temperature, a rod-shaped body as shown in the same figure is fired, and the first node 21 and the fishing line connecting portion 30 are integrally molded. At this time, it goes without saying that the carbon fibers 54 extend in alignment in a direction at an angle of 45 degrees with respect to the axial direction 27.

[0043] Thereafter, an annular groove 35 is provided at a predetermined portion of the fired first node 21. Specifically, machining (cutting) is performed on the first node 21 to form the annular groove 35. Since machining is performed on the first node 21, the position, width 37, and depth 38 (see Fig. 2) of the annular groove 35 can be easily and accurately processed. Finally, polishing and painting are performed, and the first node 21 is completed together with the fishing line connecting portion 30.

[0044] In this fishing rod 20, a fishing line connecting portion 30 with an annular groove 35 machined integrally with the first node 21 is formed. Since this fishing line connecting portion 30 is made of a resin containing carbon fibers, the fishing line connecting portion 30 is designed to be lightweight and compact, and the sensitivity of the fishing rod 20 is improved. In addition, as shown in Figs. 2 and 3, since the annular groove 35 extends in the circumferential direction of the first node 21, the fishing line can be easily and surely connected to the annular groove 35, and the attachment and detachment of the fishing line are also easy. Furthermore, since the fishing line connecting portion 30 is lightweight and compact, there is an advantage that the tone of the first node 21 (and thus the fishing rod 20) does not locally change abruptly at the portion where the fishing line connecting portion 30 is provided.

[0045] In this embodiment, as shown in FIG. 4, the carbon fibers 54 extend in alignment in a direction 45 degrees with respect to the axial direction 27 of the first joint 21. As a result, it is possible to suppress an extreme increase in the rigidity in the axial direction 27 of the fishing line connecting portion 30, particularly the tensile strength in the longitudinal direction at the tip of the first joint 21. As a result, the tone of the first joint (and thus the fishing rod 20) does not change abruptly and discontinuously locally.

[0046] In this embodiment, prepreg 52 is adopted for molding the fishing line connecting portion 30. Therefore, as shown in FIG. 4, by simply winding the prepreg 52 on the prepreg 51 constituting the first joint 21, the fishing line connecting portion 30 is easily fired together with the first joint 21.

[0047] In this embodiment, as shown in FIG. 4, the length 41 of the fishing line connecting portion 30 is 10 mm or more and 15 mm or less. For this reason, since the fishing line connecting portion 30 becomes extremely compact and lightweight, the sensitivity of the first joint 21 (and thus the fishing rod 20) is further improved.

[0048] Next, a modified example of this embodiment will be described.

[0049] FIG. 5 is a diagram schematically showing a modified example of this embodiment regarding the molding method of the fishing line connecting portion 30.

[0050] The difference between the molding method of the fishing line connecting portion 30 according to this modified example and the molding method of the fishing line connecting portion 30 according to this embodiment is that in this embodiment, the fishing line connecting portion 30 is formed by a single prepreg 52 and machining, whereas in this modified example, the fishing line connecting portion 30 is constituted by two prepregs 55 (corresponding to the "first prepreg" described in the claims) and prepreg 56 (corresponding to the "second prepreg" described in the claims). That is, in this modified example, machining is unnecessary.

[0051] In this modified example, as shown in the figure, after the prepreg 51 cut into a predetermined shape is wound around the mandrel, the prepregs 55 and 56 are arranged at the end of the prepreg 51 (the end of the front side 28 in the axial direction 15). These prepregs 55 and 56 are also formed into a sheet shape by impregnating carbon fibers (corresponding to the "reinforcing fibers" described in the claims) with a thermosetting resin (typically an epoxy resin), similar to the prepreg 52.

[0052] The prepreg 55 is pre-cut into a rectangular shape, and the prepreg 56 is pre-cut into a trapezoidal shape. The prepreg 55 is arranged and wound so that the short side 57 overlaps the prepreg 51. The prepreg 56 is arranged and wound so as to overlap the prepreg 51 from the bottom side 58 side, with the upper side 59 being the outermost layer. At this time, the prepreg 55 is arranged in accordance with the end of the prepreg 51, that is, the end of the front side 28 in the axial direction 15, and the prepreg 56 is arranged at a predetermined interval 63 from the prepreg 55 in the axial direction 27. This interval 63 corresponds to the width 37 of the annular groove 35 (see Figure 2).

[0053] The prepregs 55 and 56 are arranged so that the carbon fibers 54 contained therein are along a direction at 45 degrees with respect to the axial direction 27. Therefore, in the state where the prepregs 55 and 56 are wound on the prepreg 51, the carbon fibers 54 are aligned in a direction at an angle of 45 degrees with respect to the axial direction 27 while intersecting each other.

[0054] A molding tape (not shown) is wound around the prepregs 51, 55, and 56 to shape the first node 21, and the shape of the first node 21 is adjusted. Further, by heating for a predetermined time under a predetermined environmental temperature, the first node 21 is fired simultaneously with the fishing line connecting portion 30. In this modification, the fishing line connecting portion 30 includes a first connecting portion 61 and a second connecting portion 62. The first connecting portion 61 (see FIG. 4(d)) is formed by the prepreg 55, and the second connecting portion 62 (see FIG. 4(d)) is formed by the prepreg 56. In this state, the carbon fibers 54 extend aligned in a direction of 45 degrees with respect to the axial direction 27. When the first connecting portion 61 and the second connecting portion 62 are formed, a groove is simultaneously formed between them. This groove has the same shape as the annular groove 35. Thereafter, polishing and painting are performed on the fired first node 21.

[0055] In this modification, since the first connecting portion 61 and the second connecting portion 62 are independently formed, the annular groove 35 is partitioned between them. Therefore, machining or other special processing for forming the annular groove 35 is not required.

[0056] In this modification, the reinforcing fibers contained in the prepreg 55 and the prepreg 56 are the same carbon fibers. However, the physical properties (typically the elastic modulus) of the carbon fibers contained in the prepreg 55 (corresponding to the "first reinforcing fiber" described in the claims) and the physical properties of the carbon fibers contained in the prepreg 56 (corresponding to the "second reinforcing fiber" described in the claims) may be different. For example, PAN (polyacrylonitrile)-based carbon fibers excellent in tensile strength may be adopted for the carbon fibers contained in the prepreg 55, and Pitch (a by-product of coal, petroleum, and coal tar)-based carbon fibers with a high elastic modulus may be adopted for the carbon fibers contained in the prepreg 56. Also, when the reinforcing fibers contained in the prepreg 55 and the prepreg 56 are both PAN-based carbon fibers, for example, the elastic modulus of the carbon fibers contained in the prepreg 55 may be in the range of 5 t / mm2 or more and 46 t / mm2 or less, and the elastic modulus of the carbon fibers contained in the prepreg 56 may be in the range of 5 t / mm2 or more and 50 t / mm2 or less, and they may be designed to be different from each other.

[0057] In this way, due to the different physical properties of the reinforcing fibers or the different types of prepregs, in the design of the fishing line connecting portion 30, the rigidity of the front side 28 and the rear side 29 of the annular groove 35 can be made different, and further weight reduction of the fishing line connecting portion 35 can be achieved. As a result, the sensitivity of the fishing rod 20 can be further enhanced. Even when the resin contained in the prepreg 55 is different from the resin contained in the prepreg 56, the same effect can be obtained.

[0058] Furthermore, the type of reinforcing fiber contained in the prepreg 55 and the type of reinforcing fiber contained in the prepreg 56 may be different. For example, the reinforcing fiber contained in the prepreg 55 is carbon fiber, and the reinforcing fiber contained in the prepreg 56 may be replaced with other reinforcing fibers (for example, glass fiber) instead of carbon fiber. Note that other reinforcing fibers may be adopted instead of carbon fiber for either one of the prepreg 55 and the prepreg 56.

[0059] In this case, since the specific gravity of carbon fiber and the specific gravity of glass fiber are different, in the design of the fishing line connecting portion 30, the weight balance of the first connecting portion 61 and the second connecting portion 62 (see FIG. 4(d)) can be adjusted. It is preferable that the specific gravity of the reinforcing fiber contained in the first connecting portion 61 (the reinforcing fiber disposed on the front side 28 of the fishing line connecting portion 30) is set to be larger than the specific gravity of the reinforcing fiber contained in the second connecting portion 62. Thereby, the sensitivity of the fishing rod can be further enhanced.

[0060] In this modification, the reinforcing fibers such as the carbon fiber extend in alignment in a direction of 45 degrees with respect to the axial direction 27, but at least one of the carbon fiber and the other reinforcing fiber may extend in alignment in a direction of 45 degrees with respect to the axial direction 27. In that case, it is preferable that the reinforcing fiber contained in the second connecting portion 62 (the reinforcing fiber disposed on the rear side 29 of the fishing line connecting portion 30) extends in alignment in a direction of 45 degrees with respect to the axial direction 27. By adopting such a structure, in the design of the fishing line connecting portion 30, the adjustment of its rigidity becomes easy. As a result, the degree of freedom in designing the tone and sensitivity of the fishing rod 20 increases.

Explanation of Symbols

[0061] 20 ··· Fishing rod 21 ··· First section 27 ··· Axial direction 28 ··· Front side 29 ··· Rear side 30 ··· Fishing line connecting part 31 ··· Small diameter part 32 ··· Diameter-expanded part 33 ··· Large diameter part 34 ··· Outer peripheral surface 35 ··· Annular groove 36 ··· Outer peripheral surface 37 ··· Width 38 ··· Depth 39 ··· Tip surface 40 ··· Distance 41 ··· Length 51 ··· Prepreg 52 ··· Prepreg 55 ··· Prepreg 56 ··· Prepreg 61 ··· First connecting part 62 ··· Second connecting part 63 ··· Interval

Claims

1. A fishing rod body, A fishing line connecting part provided on the fishing rod body and to which a fishing line is connected, A fishing rod comprising: The fishing line connecting part has an annular groove extending in the circumferential direction of the fishing rod body, and is integrally formed with the fishing rod body by a resin containing reinforcing fibers.

2. The fishing rod according to Claim 1, wherein the reinforcing fibers extend in alignment in a direction of 45 degrees with respect to the axial direction of the fishing rod body.

3. The fishing rod according to Claim 1 or 2, wherein the fishing line connecting part is made of a prepreg containing a resin containing reinforcing fibers.

4. The fishing line connecting part consists of a first connecting part and a second connecting part arranged in parallel at a predetermined interval along the axial direction of the fishing rod body, The fishing rod according to Claim 1 or 2, wherein the annular groove is defined by the first connecting part, the second connecting part, and the fishing rod body.

5. The first connecting part consists of a first prepreg containing a resin containing first reinforcing fibers, The fishing rod according to Claim 4, wherein the second connecting part consists of a second prepreg containing a resin containing second reinforcing fibers.

6. The fishing rod according to Claim 5, wherein at least one of the first reinforcing fibers and the second reinforcing fibers extends in alignment in a direction of 45 degrees with respect to the axial direction of the fishing rod body.

7. The fishing rod according to Claim 5 or 6, wherein the first reinforcing fibers are different fibers from the second reinforcing fibers.

8. The fishing rod according to Claim 1 or 2, wherein the length of the fishing line connecting part along the axial direction of the fishing rod body is 10 mm or more and 15 mm or less.

Citation Information

Patent Citations

  • Resolver digital converter

    JP1988033616A

  • Stopping tool of line at tip of rod for angling rod

    JP1990000403A

  • Fishing line fixture and fishing rod

    JP1997074953A