Fishing rod

JP2025032845APending Publication Date: 2025-03-12DAIWA SEIKO CORPORATION
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Patent Information

Application Number
JP2023138335
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-08-28
Publication Date
2025-03-12

AI Technical Summary

Benefits of technology

【0008】 本発明によれば、グリップの先端に〆部を設けた釣竿において、〆部の表面にクラックが発生し難い構成の釣竿が得られる。

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Abstract

To provide a fishing rod provided with a closing part in a distal end of a grip, in which a crack is hard to occur in a surface of the closing part.SOLUTION: A fishing rod of the present invention includes a grip holding member 12 mounted to an outer peripheral surface of a base end side of a butt rod and provided with a grip 10. The grip holding member 12 is provided with a closing part 20 that projects in the axial direction with respect to the grip 10, gradually becomes thinner from a distal end edge 10a of the grip 10 toward a distal end side of a rod surface, and covers a projection part 12a of the grip holding member 12.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a fishing rod having a distinctive grip portion. [Background technology]

[0002] Conventionally, a grip is attached to the base end of a fishing rod to be held during actual fishing. Various configurations of the grip are known, and fishing rods used for crucian carp fishing are provided with a step-eliminating layer to eliminate the step between the grip attached to the rod and the rod surface, as disclosed in Patent Document 1, for example. Such a step-eliminating layer is also called a closing portion, and the step-eliminating layer disclosed in Patent Document 1 is provided on the surface of the rod (butt rod) 50 in the axial direction for a predetermined length from the tip edge 51a of the grip 51 attached to the outer surface of the base end side of the rod (butt rod) 50, as shown by reference numeral 60 in Figs. 5(a) and (b) of the attached drawings. In addition, such a step-eliminating layer 60 (hereinafter referred to as the closing portion 60) is provided so as to become thinner as it moves to the tip by, for example, applying a resin paint with a brush. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP2003-310111 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional grips have a problem that when bending stress is applied during actual fishing, stress tends to concentrate at the boundary between the closing part 60 and the grip 51 (the part indicated by arrow D in Fig. 5(a)(b)), and cracks tend to occur on the surface of the closing part 60. In particular, because the closing part is thin, cracks that occur when the fishing rod bends tend to spread. Furthermore, if a crack occurs in the closing part, it may break or otherwise impair the appearance.

[0005] The present invention has been made in consideration of the above-mentioned problems, and has an object to provide a fishing rod having a tightening portion at the tip of the grip, in which cracks are less likely to occur on the surface of the tightening portion. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the fishing rod of the present invention has a grip retaining member attached to the outer peripheral surface of the base end side of the butt rod and provided with a grip, the grip retaining member protruding in the axial direction relative to the grip, gradually thinning from the tip edge of the grip toward the tip side of the rod surface, and a tightening portion provided to cover the protruding portion of the grip retaining member.

[0007] The grip of the fishing rod having the above-mentioned configuration is provided on a grip holding member attached to the outer circumferential surface of the butt rod, and the grip holding member protrudes in the axial direction relative to the grip. The tightening portion is provided to cover the protruding portion of the grip holding member, so that when bending stress acts on the grip, the stress is dispersed by the tip edge of the grip and the tip edge of the grip holding member, making it difficult for cracks to occur on the surface of the tightening portion. In addition, the tightening portion is provided so that it gradually becomes thinner toward the tip, so that the appearance of the tightening portion is finished neatly. Effect of the Invention

[0008] According to the present invention, a fishing rod having a tightening portion at the tip of the grip can be obtained, which is configured so that cracks are less likely to occur on the surface of the tightening portion. [Brief description of the drawings]

[0009] [Figure 1] 1 is a diagram showing an example of a configuration of a grip portion of a fishing rod according to the present invention. [Diagram 2] 2(a) is a central longitudinal cross-sectional view of the grip portion shown in FIG. 1, and (b) is an enlarged view of the main part of FIG. 2(a). [Diagram 3] FIG. 4 is a central vertical cross-sectional view showing a second embodiment of a grip portion. [Figure 4]FIG. 11 is a central vertical cross-sectional view showing a third embodiment of a grip portion. [Diagram 5] (a) is a central cross-sectional view of a conventional grip portion, and (b) is an enlarged view of the main part of FIG. (a). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of a fishing rod according to the present invention will be described with reference to Figs. Fig. 1 is a diagram showing the grip part of a fishing rod, and Fig. 2(a) and (b) are respectively a central vertical cross-sectional view and an enlarged view of the main part of the grip part shown in Fig. 1. Note that the tip side (front end) specified below means the tip side of the fishing rod, and the upper side in Fig. 1 is the tip side.

[0011] The fishing rod 1 according to this embodiment includes a butt rod 2 and a rod (tip rod; not shown) that is joined in sequence to the tip of the butt rod 2. In this case, the tip rod can be joined by a telescopic type, a parallel joint type, a spigot joint type, or the like, as is well known, and there is no limit to the number of joints, etc.

[0012] The butt rod 2 and the tip rod are tubularly constructed by winding a fiber-reinforced resin material (prepreg) made of synthetic resin impregnated with reinforcing fibers. Each rod may have a solid structure made of a superelastic alloy or superelastic resin, or may be made of natural materials such as bamboo.

[0013] The grip 10 is fixed to the base end of the butt rod 2 via a grip holding member 12, which will be described later. The grip 10 is formed, for example, by a main body 10A made of a lightweight material such as foam material or cork, and a fibrous body is wound (braided) on the surface of the main body 10A. A step occurs between the tip edge 10a of the grip 10 and the outer circumferential surface of the butt rod 2, but a tightening portion 20 is provided at the step, and the step is finished to be flush with the surface so that there is no step. The material of the main body 10A is not limited, and it may be made of lightweight materials such as resin, FRP, lightweight metal, etc. other than the above-mentioned materials, and may be configured without braiding.

[0014] The grip 10 is formed of a separate body (FRP, hard plastic, light metal, etc.) from the rod, and is attached by adhesion or the like to a grip holding member 12 that is attached to the outer peripheral surface of the base end side of the butt rod 2. The grip holding member 12 of this embodiment is formed in a tubular shape and extends to the base end of the butt rod 2, and is fixed by adhesion or the like to the outer peripheral surface of the base end side of the butt rod 2. That is, the grip holding member 12 is configured as a tubular body to which the inner surface of the grip 10 is attached over the entire axial length, and thus the grip 10 is disposed on the base end side of the butt rod 2 in a stable state. The tip side of the grip holding member 12 is configured to protrude in the axial direction by a predetermined length (protrusion amount L) from the tip edge 10a of the grip 10 to which it is attached (a protruding portion 12a is formed).

[0015] The tip edge 10a of the grip 10 has a step with respect to the surface of the rod 2 (the step height is H+H2 as shown in Figure 2(b)), and the step portion is gradually thinned toward the tip and is provided with a closing portion 20 that covers the protruding portion 12a of the grip holding member 12.

[0016] The closing part 20 can be constructed by, for example, applying an ultraviolet-curing resin (paint) with a brush. If the grip 10 is made of a foaming material, this type of ultraviolet-curing resin will easily permeate and will have good adhesion to the grip. In addition, by applying the resin multiple times, the closing part 20 can be made thick and the exterior can be made to have a smooth surface for a beautiful finish.

[0017] In this embodiment, a reduced diameter portion 2a is formed on the base end side of the butt rod 2. This reduced diameter portion 2a can be formed, for example, by chucking the butt rod 2 and centerless machining the rear end side, and the tubular grip holding member 12 is press-fitted and fixed into the machined reduced diameter portion 2a.

[0018] By forming the reduced diameter portion 2a in the base rod 2, when the grip retaining member 12 is press-fitted into the reduced diameter portion 2a, its tip end face (tip edge) 12b abuts against the tip end face 2b of the reduced diameter portion 2a, making it easy to position the grip retaining member 12 and providing a stable fixed state. Also, a step H is formed between the surface of the base rod 2, making it possible to concentrate stress in this portion (the position of the tip edge 12b of the grip retaining member 12).

[0019] Incidentally, by making the thickness T of the grip retaining member 12 larger than the recess amount H1 of the reduced diameter portion 2a, a step H can be formed, and when bending stress acts on the butt rod, it becomes possible to concentrate the stress. In this case, by making the thickness T of the grip retaining member 12 thicker than the thickness T1 of the butt rod 2, it becomes possible to reliably form the step H.

[0020] The tightening portion 20 is provided from the tip edge 10a of the grip 10 to the surface of the rod 2. As described above, the tightening portion 20 is made of ultraviolet-curing resin, and is provided so as to cover the protruding portion 12a of the grip holding member 12. In this case, the tightening portion 20 serves to eliminate the step from the tip edge 10a of the grip 10 to the front side, and it is considered that the product looks beautiful when it is 15 mm or less in the axial direction.

[0021] For this reason, it is preferable to set the protrusion amount L of the tip of the grip retaining member 12 to 7 mm or less, which is about half of the protrusion amount. In other words, if the protrusion 12a exceeds 7 mm, as shown in the figure, when the closing portion 20 is formed to be thinner toward the tip, it will easily exceed 15 mm, resulting in a poor appearance. Also, if the protrusion amount L is set to 0 mm, it will not be possible to disperse the stress concentration generated at the tip edge 12b of the grip retaining member 12, as in the conventional case, and cracks will easily occur on the surface of the closing portion 20.

[0022] The lower limit of the protrusion amount L is preferably at least 1 mm, more preferably 2 mm or more, and even more preferably 3 mm or more, so that cracks are less likely to occur (stress concentration in the axial direction is dispersed). That is, the protrusion amount L is set to be 1 mm≦L≦7 mm, preferably 2 mm≦L≦7 mm, and more preferably 3 mm≦L≦7 mm.

[0023] In this way, by ensuring a certain amount of protrusion L, the points of application of force when bending stress is applied (positions D1 and D2) can be separated by a sufficient distance, and the stress concentration that acts on one point (position D in Figure 5(b)) as in the past can be dispersed, thereby suppressing the occurrence of cracks.

[0024] If the step H is too high, the resin at the tip edge of the grip holding member 12 becomes thin and cracks are likely to occur. On the other hand, if it is too low, the effect of dispersing stress concentration is weakened, making cracks more likely to occur. Furthermore, if the step H is low, the adhesion (anchor effect) of the paint that constitutes the closing portion 20 also decreases, making it more likely to suffer damage such as peeling. For this reason, it is preferable to form the step H within the range of 0.3 to 0.5 mm.

[0025] Furthermore, by setting the step H and the step H2 at the tip edge 10a of the grip 10 to be approximately the same, specifically, 0.8H≦H2≦1.2H, the resin can be attached in a balanced manner, the sense of unity can be improved visually and tactilely, the finish can be made neat, and stress concentration can be dispersed.

[0026] According to the fishing rod grip structure configured as above, the grip holding member 12 to which the grip 10 is attached protrudes in the axial direction from the tip edge 10a of the grip 10. In this state, the closing part 20 is provided so as to cover the protruding part 12a, so that when bending stress acts, the stress can be dispersed by the tip edge 10a (D1) of the grip and the tip edge 12b (D2) of the grip holding member 12 at a distance in the axial direction, making it difficult for cracks to occur on the surface of the closing part 20. In addition, the closing part 20 is provided so as to gradually become thinner toward the tip, so that the appearance of the closing part 20 is finished neatly.

[0027] Next, another embodiment of the grip portion will be described. In the following description, the same parts as those in the above-described embodiment are given the same reference numerals, and detailed description thereof will be omitted.

[0028] FIG. 3 is a central longitudinal sectional view showing a second embodiment of the grip portion. In this embodiment, the grip holding member 12A is formed shorter than the grip holding member 12 and is configured to protrude from the tip edge 10a of the grip 10. That is, the grip holding member 12A is attached to the inner surface of the tip side of the main body 10A of the grip 10 and holds the grip 10.

[0029] Even with this configuration of grip retaining member 12A, when bending stress acts on the butt rod 2, the stress can be dispersed by the tip edge 10a (D1) of the grip 10 and the tip edge 12b (D2) of the grip retaining member 12A at a distance in the axial direction, making it difficult for cracks to occur on the surface of the closing portion 20. Also, since there is no need to form the grip retaining member 12A long as in the above embodiment, the grip portion can be made lighter.

[0030] FIG. 4 is a central longitudinal sectional view showing a third embodiment of the grip portion. In this embodiment, the grip holding member 12B is formed shorter than the grip holding member 12 and is configured to protrude from the tip edge 10a of the grip 10. That is, the grip holding member 12B is attached to the inner surface of the tip side of the main body 10A of the grip 10 and holds the grip 10.

[0031] Further, on the surface of the protruding portion 12a, an inclined portion 12d is formed, the diameter of which decreases toward the tip side. In this way, by forming an inclined portion 12d on the surface of the protrusion 12a, the thickness of the tightening portion 20 at that portion can be made thinner, which prevents the resin from expanding or sinking when applied, effectively suppressing the occurrence of cracks and enabling a neat finish.

[0032] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and can be modified in various ways. The structure of the main body 10A of the grip 10 described above is not limited, and may be made of a plurality of materials. For example, the surface may be made of a resin material and the inside may be filled with a lightweight material, so that the hardness when gripped may be adjusted, or the surface may be made of a composite material to prevent damage. In addition, the grip holding member 12 may not be made of a tubular body as long as it holds the grip 10. In addition, the main body 10A may be fitted to the butt rod 2 without forming a thin diameter portion 2a in the butt rod 2.

[0033] The grip holding member may have a structure that can be modified as appropriate as long as its tip end protrudes from the tip edge 10a of the grip 10 toward the axial tip end and is covered with the fastening part 20. Furthermore, the fastening part 20 may be made of transparent resin or transparent resin with a color, and the attachment method may be modified as appropriate. [Explanation of symbols]

[0034] 1 fishing rod 2 Original rod 10 Grip 10A Main Unit 12, 12A, 12B Grip holding member 12a Protrusion 20 Final part

Claims

1. A fishing rod having a grip holding member attached to an outer peripheral surface of a base end side of a butt rod and having a grip provided thereon, The grip holding member protrudes in an axial direction relative to the grip, A fishing rod characterized in that the thickness of the grip gradually decreases from the tip edge of the grip toward the tip side of the rod surface, and a closing portion is provided to cover the protruding portion of the grip holding member.

2. 2. The fishing rod according to claim 1, wherein the grip holding member protrudes from the grip in the axial direction within a range of 1 to 7 mm.

3. A reduced diameter portion is formed on the base end side of the base rod, 3. The fishing rod according to claim 1, wherein the grip holding member is abutted against a tip end face of the reduced diameter portion, and a step is formed between the grip holding member and a surface of the butt rod.

4. 4. The fishing rod according to claim 3, wherein the step is formed within a range of 0.3 to 0.5 mm.

5. 3. The fishing rod according to claim 1, wherein the grip holding member is configured as a tubular body to which the inner surface of the grip is attached over the entire axial length.

6. 3. The fishing rod according to claim 1, wherein a surface of the portion of the grip holding member that protrudes toward the grip is provided with an inclined portion that narrows in diameter toward the tip side.

Citation Information

Patent Citations

  • Fishing rod

    JP2002247936A

  • Fishing rod

    JP2004261072A

  • Fishing rod for enhancing casting power

    US20150373960A1

  • Fishing rod

    JP2003310111A