JP2020048501A - fishing rod - Google Patents

Abstract

To provide a fishing rod capable of achieving smooth bending without concentration of a stress on a junction of rods forming an ear tip rod.SOLUTION: A fishing rod of the invention comprises an ear tip rod 10 comprising a junction 60 where a solid rod 15 is inserted and fixed to an ear tip side of a hollow rod 12. The ear tip rod 10 comprises: a first thread line body 30 which is wound to a periphery of the solid rod 15 so as to fill a step 62 on a surface of the ear tip rod 10 on the junction 60; and a second thread line body 32 which is wound to a periphery of the junction 60 over the hollow rod 12 and the first thread line body 30 on the solid rod 15. A leg 70a of a fishing line guide 70 is mounted on the second thread line body 32, and the first thread line body 30 extends so that its ear tip side end part 30a is positioned closer to an ear tip side than an ear tip side end part 32a of the second thread line body 32.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a fishing rod characterized by a joint structure between the rods of a head rod.

  Conventionally, as disclosed in Patent Literature 1, for example, a solid rod is inserted into a hollow rod having a diameter larger than that of the solid rod to form a head rod, thereby reducing weight and flexibility. Fishing rods that have been improved are known. As described above, in a spike rod (fishing rod) having a spliced structure in which a solid rod is inserted into a hollow rod, a step is inevitably generated at the spliced portion (a portion where a seam exists on the surface). In some cases, the step is filled with a resin overlay, or the fishing line guide is positioned closer to the spike than the joint portion.

  In addition, since it is assumed that large bending occurs in the spike rod having such a spliced structure, a fishing line guide is attached to the spliced portion to improve the strength, and the seam is made invisible to improve the appearance. Attempts are also being made. Specifically, in the above-mentioned Patent Document 1, a small-diameter solid rod and a large-diameter hollow rod are spliced, and at the joint, a thread serving as a lower thread layer is wound. The leg portion of the fishing line guide is placed on the yarn layer, and after winding the thread body as the upper yarn layer from above the leg portion, the synthetic resin is applied, so that the seam is joined with the fishing line guide. The joint structure is reinforced and invisible.

  Further, in Patent Document 2, a small-diameter hollow rod and a large-diameter hollow rod are joined together and tightened from the outer peripheral surface of the small-diameter hollow rod to a position reaching the surface step of the large-diameter hollow rod. While winding the attached thread, further apply a resin paint to cover the wound tightening thread to protect the wound state, then apply polishing and resin coating to form a guide mounting seat surface, and from above the fishing line guide There is disclosed a splicing structure of a spikestick on which a leg portion is placed and fixed with a tightening thread, and a resin is further applied.

JP-A-2001-69878 JP-A-2007-209301

  By the way, in such a joint structure of rods having a step, if the step is filled with resin as described above, the bending of the spike may not be smooth depending on the hardness of the resin. In particular, when a small-diameter solid rod has a tapered shape at the joint, the step at the joint is further increased, and therefore the amount of resin filling the step is increased. Gradual and smooth bends cannot be realized.

  Also, as described above, when the fishing line guide is positioned on the tip side of the splicing portion with the step of the splicing portion, generally, the winding line for attaching the fishing line guide to the rod is also extended to the splicing portion. In order to prevent the joint portion from being exposed by extending and covering the joint portion, the thread winding amount is increased (the thread winding range is lengthened), the appearance becomes poorly balanced, and the weight is increased by the increased thread amount. There is also the problem that

  In addition, in such a joint structure between rods, particularly when the solid rod is made of metal and the hollow rod is made of resin, a difference in rigidity is increased at the joint. , Stress concentration is likely to occur (therefore, plastic bending is caused). Therefore, as disclosed in Patent Literature 1 and Patent Literature 2, it is advantageous to attach a fishing line guide to the joint to improve the strength (reinforce the joint to disperse the stress). In both Patent Document 1 and Patent Document 2, since the line-stopping resin is applied over the thread line for fixing the fishing line guide so as to cover the line member, when the fishing rod is actually bent, the seam where the stress tends to concentrate is easily formed. Cracks are apt to be formed in the thread-locking resin at the joint portion, and such cracks are easy to visually recognize, thus impairing the appearance. Further, in both Patent Document 1 and Patent Document 2, since the thread and the resin to be laminated are intensively disposed over substantially the same length only in the region of the joint portion, reinforcement and stress Is only performed locally, and it is difficult to effectively disperse the stress and realize a gradual and smooth (smooth) bending of the spike.

  The present invention has been made based on the above-mentioned problem, and has a fishing rod having a joint structure capable of realizing a gradual and smooth bend without stress concentration at a joint portion between rods constituting a head rod. The purpose is to provide.

  In order to solve the above-mentioned problem, the present invention is a fishing rod provided with a tip rod having a joint portion in which a solid rod smaller in diameter than the hollow rod is inserted and fixed on the tip side of the hollow rod. A first thread wound around the outer periphery of the solid rod so as to fill a step on the surface of the spike in the joint, and the hollow rod around the outer periphery of the joint. A second thread body wound around the first thread body on the solid rod to form an underlayer for placing the leg of the fishing line guide, and The leg of the fishing line guide is placed on the thread, and the tip of the first thread is located closer to the tip than the tip of the second thread is located on the tip. It is characterized by extending.

  According to the above configuration, the first and second thread bodies are stepped so that the tip side end of the first thread body is located closer to the tip side than the tip side end of the second thread body. Since the outer diameter of the tip rod at which the joint is located is stepwise changed by the thread body by being arranged in a shape, the stress is effectively dispersed at the joint and the rod does not involve stress concentration. A gradual and smooth bending of the rod can be realized. That is, since the reinforcement and the dispersion of the stress are performed stepwise over a wide range, the flexibility of the tip rod at the joint portion is improved, and the tip of the tip rod is locally bent (for example, a "H" -shaped bend). Can be prevented.

  Further, according to the above configuration, since the step on the surface of the spike at the joint portion is not filled with the resin but filled with the thread (the first thread), the rod can be bent more smoothly than the resin. In addition to the above, it is possible to prevent the resin from being cracked at the joint portion where stress concentration is liable to be caused and the appearance to be impaired. This is particularly useful in the case where the solid rod has a tapered shape with the joint portion as a boundary, so that the step of the joint portion is further increased. In addition, according to the above configuration, since the fishing line guide is attached to the joint between the hollow rod and the solid rod, the joint is reinforced by the fishing line guide to disperse stress (to improve strength). Aiming). This is particularly useful in a structure in which the difference in rigidity is large at the joint portion and stress concentration is likely to occur, that is, for example, when the solid rod is made of metal and the hollow rod is made of resin. In addition, when the fishing line guide is attached to the splicing portion in this manner, the amount of winding can be reduced compared to the case where the fishing line guide is positioned closer to the spike than the splicing portion as described above (the winding range can be shortened). ), It is possible to provide a well-balanced appearance, and it is also possible to reduce the weight by reducing the amount of yarn.

  In the above configuration, the joint (the boundary between the hollow rod and the solid rod) is connected to the fishing line by attaching the fishing line guide to the joint between the hollow rod and the solid rod. It is desirable to be located at the center of the entire length of the guide leg. Thereby, the stress can be dispersed in a well-balanced manner. Further, in the above configuration, in order to prevent the inclination of the fishing line guide due to the step, the thickness of the first thread body for filling the step in the joint portion is selected according to the degree of the step. Is preferred. In order to effectively prevent the inclination of the fishing line guide, it is preferable to fill the gap between the guide body extending from the leg of the fishing line guide and the rod by painting or the like.

  In the above configuration, the fishing line guide further includes a third thread body for fixing the leg portion to the splicing portion, and the second thread body has a tip end side end portion of the third thread line. It is preferable to extend so that it is located on the tip side rather than the tip side end part of a strip. According to this, the stepwise arrangement of the thread body is further promoted, so that a smoother progressive bending of the rod can be realized. When the solid rod has a tapered shape, it is preferable that the degree of the stepwise change of the outer diameter of the tip rod by the thread corresponds to the degree of taper of the solid rod.

  In the above configuration, it is preferable that the second thread body has a retaining portion for preventing the leg portion of the fishing line guide from coming off the third thread body in the longitudinal axis direction of the spike. According to this, the leg portion of the fishing line guide can be reliably fixed by cooperation of the third thread member and the second thread member. Further, in this case, it is preferable that the retaining portion also serves to reinforce the joint portion.

  Further, in the above configuration, it is preferable that a coating layer covering the surface of the solid rod is further provided, and the first thread is wound on the coating layer. According to this, the metal surface does not need to be exposed by the coating layer, and the desired appearance of the spike can be maintained. In addition, as a coating layer, a thread body, a coating, a carbon sheet, etc. can be mentioned, for example. When the covering layer is formed of a thread, an anchor effect of preventing the first thread wound thereon from slipping on the rod can be obtained. In particular, when the hollow rod is made of resin and the solid rod is made of metal, it is preferable that the coating layer is formed with a thickness that does not impair the properties of the metal in the solid rod.

  ADVANTAGE OF THE INVENTION According to this invention, the fishing rod which has the joint structure which can implement | achieve the gradual and smooth bending which does not accompany stress concentration in the joint part of the rods which comprise a head rod is obtained.

It is a side view showing one embodiment of the fishing rod concerning the present invention. FIG. 2 is a side cross-sectional view showing a joint portion of a large-diameter rod and a small-diameter rod constituting a head of the fishing rod of FIG. 1. FIG. 3 is an enlarged side sectional view showing an A portion (joint portion) of FIG. 2.

Hereinafter, one embodiment of a fishing rod according to the present invention will be specifically described with reference to the accompanying drawings.
As shown in FIG. 1, the fishing rod 1 of the present embodiment includes a main rod 3, a middle rod 5, and a head rod 10, and the respective rods are joined by a joint type. Further, the fishing rod 1 is provided with a reel sheet 4 on a former rod 3, and the former rod 3, the middle rod 5, and the head rod 10 are provided with fishing line fed from a reel R mounted on the reel sheet 4. A guiding fishing line guide is attached in place. In FIG. 1, a fishing line guide provided on the original rod 3 is indicated by 7A, a fishing line guide provided on the middle rod 5 is indicated by 7B, and a fishing line guide provided on the head rod 10 is indicated by 7C. A top guide 8 is attached to the tip of the tip rod 10. In this case, each of the fishing line guides 7A, 7B, 7C and the top guide 8 are attached to the outer peripheral surface of the rod by winding, bonding, or the like. A floating guide) may be used.

  Although the fishing rod 1 shown in FIG. 1 is configured as a splicing type, the splicing structure of each rod may be a swing-out method, a reverse splicing method, or a spigot method. Further, the number of the inner poles 5 may be plural (two or more) or may not be provided. Further, the rod may be constituted by a single rod as a whole.

  The main rod 3 and the middle rod 5 are preferably formed of a fiber-reinforced resin tubular body (hollow rod). For example, a synthetic fiber such as an epoxy resin is used for reinforcing fibers (mainly carbon fibers, glass fibers, etc.) A fiber-reinforced resin prepreg (prepreg sheet) impregnated with a resin is wound into a cored bar, subjected to a heating step, and then decored, and is formed into a tube having a predetermined size according to a standard method.

  Further, as clearly shown in FIG. 2, the tip rod 10 has a hollow rod 12 and a solid rod formed to have a smaller diameter than the hollow rod 12 and inserted and fixed to the tip side of the hollow rod 12. It is constituted by a rod 15. That is, the tip rod 10 has a joint structure in which the solid rod 15 is inserted into the hollow rod 12 at the joint portion (the portion where the seam is present on the surface) 60. In this case, the large-diameter hollow rod 12 has a predetermined size in accordance with a standard method, such as winding a resin prepreg sheet around a core metal, passing through a heating step, and then de-centering, as in the case of the original rod 3 and the middle rod 5. The small-diameter solid rod 15 is formed as a solid core material, and has a base end (original rod side) opening at the distal end of the hollow rod 12 as described later. 12a and joined and fixed by an adhesive or the like.

  In addition, the small-diameter solid rod 15 of the present embodiment has improved flexibility as a tip rod. Specifically, the solid rod 15 is formed of a material having good flexibility, for example, a superelastic alloy wire (a metal material such as a Ni-Ti alloy or a Fe-Al alloy). However, the solid rod 15 may be formed of a material other than metal, for example, a superelastic resin material (polyphenyl salsan (PPSU)) or the like. In this case, it may be formed of a fiber reinforced resin material formed by directing carbon fibers or the like in the longitudinal direction and impregnating the fibers with a synthetic resin such as an epoxy resin.

  The solid rod 15 has a tapered shape tapering at a joint 60 with the hollow rod 12. Specifically, the solid rod 15 is exposed from the hollow rod 12 and a straight portion 15A having a constant outer diameter adapted to be inserted into the hollow rod 12. And a tapered portion 15B whose outer diameter gradually decreases toward the tip. The solid rod 15 of the present embodiment is gradually reduced in diameter (tip side) from the joint 60 with the hollow rod 12 as described above, but extends straight over the entire length. You may.

  On the other hand, the large-diameter hollow rod 12 has a tip end opening 12a at its tip side end for inserting the straight portion 15A of the solid rod 15 in a fitted state. In this case, when the solid rod 15 is inserted into the hollow rod 12, an adhesive is applied to the contact portion, whereby the solid rod 15 is inserted and fixed to the hollow rod 12.

  When the solid rod 15 is inserted into and fixed to the hollow rod 12 in this manner, a step 62 (FIG. 3) is formed between the edge 12b of the distal end opening 12a of the hollow rod 12 and the surface of the solid rod 15. Ref). At the portion where the step 62 is generated, that is, at the joint 60 between the solid rod 15 and the hollow rod 12 indicated by reference numeral A by a dashed-dotted circle in FIG. It becomes a part where stress concentrates when it is bent. For this reason, the tip rod 10 of the present embodiment has a joining structure capable of effectively dispersing the stress concentration and realizing a gradual and smooth bending. Hereinafter, this will be described in detail with reference to FIG.

  In the present embodiment, the first thread 30 is densely wound around the outer periphery of the tapered portion 15B of the solid rod 15 so as to fill the step 62 on the surface of the spike rod 10 in the joint 60. . In this case, the first thread body 30 is formed of a synthetic resin such as polyester having a substantially circular cross section (including a polygonal shape such as a hexagon in addition to a circle and an ellipse) and a natural fiber such as cotton. The line to be wound is wound closely along the direction of the longitudinal axis O of the spike rod 10, for example, about twice as long as the leg 70 a of the fishing line guide 70 placed forward of the step 62. And fixed by applying an adhesive or the like. In addition, in order to prevent the inclination of the fishing line guide 70 due to the step 62, the thickness of the first thread 30 is preferably selected according to the degree of the step 62. Further, in order to effectively prevent the inclination of the fishing line guide 70, in the present embodiment, the gap between the guide body 70b extending from the leg 70a of the fishing line guide 70 and the tapered portion 15B of the solid rod 15 is painted. (Paint 90 in the figure).

  Further, in the present embodiment, on the outer periphery of the joint portion 60, a second thread body 32 forming an underlayer for mounting the leg 70a of the fishing line guide 70 is provided with the hollow rod 12 and the solid rod. It is tightly wound around the first thread 30 on the rod 15. Also in this case, the second thread body 32 is made of a synthetic resin such as polyester having a substantially circular cross section (including a polygonal shape such as a hexagon in addition to a circle and an ellipse) and a natural fiber such as cotton. The hollow rod rod is formed so that the formed line is closely contacted with the fishing line guide 70 along the direction of the longitudinal axis O of the spike rod 10, for example, about twice as long as the leg 70 a of the fishing line guide 70. 12 and wound around the first thread 30 and fixed by applying an adhesive or the like.

  In the present embodiment, the leg 70 a of the fishing line guide 70 is further placed on the second thread body 32, and the leg 70 a of the fishing line guide 70 is fixed to the joint 60. Is tightly wound so as to completely surround the leg 70a from the outside and completely cover the outer periphery of the second thread 32 at least partially over its entire length. Of course, also in this case, similarly to the above, the third thread body 33 has a substantially circular cross section (including a polygonal shape such as a hexagon in addition to a circle and an ellipse), for example, a synthetic resin such as polyester, cotton, or the like. A line formed from natural fibers or the like is wound in the direction of the longitudinal axis O of the spike rod 10, for example, in front of the leg 70 a of the fishing line guide 70 so as to be closely contacted over a length of about two or three turns. And fixed by applying an adhesive or the like. Regarding the placement of the leg 70 a of the fishing line guide 70 on the second thread 32, the boundary between the hollow rod 12 and the solid rod 15 at the joint 60 is the leg of the fishing line guide 70. It is desirable to be located at the center of the entire length of 70a. Thereby, the stress acting on the rod can be dispersed in a well-balanced manner.

  Further, in the tip rod 10 of the present embodiment having such a joint structure, the tip end 30a of the first thread 30 is located closer to the tip than the tip 32a of the second thread 32. , And such that the tip 32 a of the second thread 32 is located closer to the tip than the tip 33 a of the third thread 33. 32 and 33 extend. That is, in the tip rod 10 of the present embodiment, the outer diameter of the tip rod 10 in which the joint portion 60 is located changes stepwise by arranging the thread bodies 30, 32, and 33 in a stepwise manner. I have. In the case where the solid rod 15 has a tapered tapered shape (the solid rod 15 has a tapered portion 15B), the outer diameter of the tip rod 10 is gradually changed by the thread members 30, 32, 33. The degree of change preferably corresponds to the degree of taper of the tapered portion 15B of the solid rod 15.

  Further, in the splicing structure of the present embodiment, the leg portion 70a of the fishing line guide 70 of the second thread body 32 extends from the third thread body 33 in the direction of the longitudinal axis O of the tip rod 10 (in FIG. To the side). In this case, the retaining portion 32a also serves to reinforce the joining portion 60, and partially overlaps the upper side of the second thread 32 on the tip end side 32a of the second thread 32. In this way, the yarn is further wound, and is positioned so as to be embedded in the above-described paint 90 for preventing inclination of the guide.

  In this embodiment, the tip rod 10 further includes a coating layer 34 that covers the surface of the solid rod 15 (in this embodiment, covers the entire surface of the tapered portion 15B). The first thread body 30 is wound. In this case, examples of the coating layer 34 include a thread, a coating, and a carbon sheet. When the covering layer 34 is formed by a thread as shown in FIG. 3, an anchor effect for preventing the first thread 30 wound thereon from slipping on the rod (tapered portion 15B). Can be obtained. In particular, in the case of the present embodiment in which the hollow rod 12 is made of resin and the solid rod 15 is made of metal, the coating layer 34 is formed with a thickness that does not impair the properties of the metal in the solid rod 15. Is preferred.

  As described above, according to the present embodiment, the tip 30a of the first thread 30 is positioned closer to the tip than the tip 32a of the second thread 32. Since the first and second thread bodies 30 and 32 are arranged in a step-like manner, the outer diameter of the tip rod 10 at which the joint portion 60 is located changes stepwise by the thread bodies 30 and 32. In the joint portion 60, the stress is effectively dispersed and the gradual and smooth bending of the rods 12, 15 without stress concentration can be realized. That is, since the reinforcement and the dispersion of the stress are performed stepwise over a wide range, the flexibility of the tip rod 10 at the joint portion 60 is improved, and the local bending of the tip rod 10 (for example, a “H” shape) Bend) can be prevented.

  Further, according to the present embodiment, since the step 62 on the surface of the spike rod 10 in the joint portion 60 is not filled with the resin but filled with the thread (the first thread 30), it is smoother than the resin. The bending of the rods 12 and 15 can be realized, and the resin is not cracked at the joint 60 where the stress is easily concentrated, and the appearance is not spoiled. This is particularly useful when the solid rod 15 has a tapered shape with the joint portion 50 as a boundary, as in the present embodiment, so that the step 62 of the joint portion 60 is further increased.

  Further, according to the present embodiment, since the fishing line guide 70 is attached to the joint portion 60 over the hollow rod 12 and the solid rod 15, the joint 60 is reinforced by the fishing line guide 70 to reduce stress. It can be dispersed (improving the strength). In particular, this is a structure in which the difference in rigidity is large at the joint portion 60 and stress concentration easily occurs as in the present embodiment, that is, the solid rod 15 is made of metal and the hollow rod 12 is made of resin. Useful in some cases. Further, if the fishing line guide 70 is attached to the splicing portion 60 in this manner, the line winding amount can be reduced as compared with the case where the fishing line guide is positioned closer to the spike than the splicing portion as in the prior art described above ( The thread winding range can be shortened), a well-balanced appearance can be provided, and the weight can be reduced by reducing the amount of yarn.

  Further, according to the present embodiment, the third thread body 33 for fixing the leg portion 70a of the fishing line guide 70 to the joint portion 60 is further provided, and the second thread body 32 is The tip side end 32a extends so as to be located closer to the tip than the tip side end 33a of the third thread body 33. For this reason, the stepwise arrangement of the thread body described above is further promoted, and the smoother and progressive bending of the rods 12 and 15 can be realized.

  In the present embodiment, the second thread body 32 is provided with a retaining portion 32a for preventing the leg 70a of the fishing line guide 70 from coming off the third thread body 33 in the direction of the longitudinal axis O of the spike rod 10. Therefore, the leg 70a of the fishing line guide 70 can be reliably fixed by the cooperation of the third thread 33 and the second thread 32.

  Further, in the present embodiment, a coating layer 34 that covers the surface of the solid rod 15 is further provided, and the first thread 30 is wound on the coating layer 34. Is not required to be exposed, and the desired appearance of the tip rod 10 can be maintained.

  As described above, the embodiments of the present invention have been described with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiments, and can be variously modified and implemented without departing from the gist thereof. For example, the length, material, and outer diameter of the thread can be set arbitrarily. A thread other than the first to third threads may be further present.

DESCRIPTION OF SYMBOLS 1 Fishing rod 10 Head rod 12 Hollow rod 15 Solid rod 30 First thread 32 Second thread 32 Retaining part 33 Third thread 34 Coating layer

Claims (4)

A fishing rod provided with a head rod having a joint portion in which a solid rod smaller in diameter than the hollow rod is inserted and fixed on the tip side of the hollow rod,
A first thread wound around the outer periphery of the solid rod so as to fill a step on the surface of the tip rod in the joint portion;
A second layer wound around the hollow rod and the first thread on the solid rod around the outer periphery of the joint to form a base layer for mounting the leg of the fishing line guide; And the thread body of
Has,
A leg portion of a fishing line guide is placed on the second thread body, and the first thread body has a tip end side closer to a tip side than a tip end side end of the second thread body. A fishing rod characterized by extending so as to be located at a position.   The fishing line guide further includes a third thread body for fixing a leg portion of the fishing line guide to the joint portion, and the second thread body has a tip end side end portion of the third thread body. 2. The fishing rod according to claim 1, wherein the rod extends so as to be located closer to the tip than the tip of the tip.   The said 2nd thread body has a retaining part which prevents the leg part of the said fishing line guide from falling out of the said 3rd thread body in the longitudinal axis direction of the head rod. Or the fishing rod according to 2.   4. The method according to claim 1, further comprising a coating layer covering a surface of the solid rod, wherein the first thread is wound on the coating layer. 5. fishing rod.