JP2010081878A - Fishing rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fishing rod having a tip section to improve impact resistance of a tip side. <P>SOLUTION: The tip section 4 of the fishing rod is composed of a resin-impregnated reinforcing fiber, and the resin content at the tip side in the longitudinal direction of the rod is higher than the resin content at the grip side. As an example, the tip section 4 has a solid cross-section comprising an inner region 20 made of the resin and an outer region 30 made of at least the reinforcing fiber and encircling the inner region 20, the outer diameter of the tip section 4 is gradually decreased from the grip side toward the tip side, and the ratio of the outer region 30 to the inner region 20 decreases toward the tip side. The resin content of the tip section 4 becomes higher at the tip side than the grip side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fishing rod, and more particularly to a fishing rod having a tip that can improve impact resistance on the tip side.

Conventionally, solid rod-shaped tips are known in various materials and forms (see, for example, Patent Document 1). For example, for a salmon, there is a pointed spear where the tip of the salmon bends, and the tip of the salmon is bent to make it easy to pick up fish. One of the problems common to these tips is to improve the stiffness (strength) of the tips, and it is necessary that damage and breakage do not occur due to impact.
JP 2006-101777 A

  By the way, the tip of the tip has a smaller diameter toward the tip side, and therefore, the tip side of the tip is particularly liable to be damaged due to contact with an obstacle (for example, a rock present at a fishing spot). In addition, the tip may break along with the bending of the heel caused by the trapping of the device. Therefore, in particular, it is required to improve the impact resistance on the tip side of the tip. In relation to this, in order to improve the impact resistance of the tip, it is conceivable to make the entire tip with a material having a high resin content, but in this case, the entire tip becomes soft, The rigidity difference with the heel is large and the entire heel does not bend smoothly.

  The present invention has been made by paying attention to the above circumstances, and its purpose is to improve the impact resistance of the tip side and contribute to the excellent tone and deflection balance of a smoothly bent fishing rod. The object is to provide a fishing rod having a tip that can be made.

  In order to solve the above-mentioned problem, the fishing rod of the present invention is a solid tip and is constituted by a reinforcing fiber impregnated with resin, and the resin content at the distal end in the longitudinal direction is the resin content at the proximal end. It has a tip characterized by being higher.

  According to the above configuration, since the resin content rate at the tip end side in the longitudinal direction of the tip is set higher than the resin content rate at the base end side, the impact absorption property is increased toward the tip end side in the longitudinal direction due to the physical characteristics of the resin. Excellent. Therefore, the impact resistance becomes higher on the tip side of the tip. As a result, it is possible to prevent the tip of the tip from being damaged due to contact with an obstacle, or the tip of the tip from being bent due to bending of the heel caused by the trapping of the device. Also, instead of making the entire tip with a material having a high resin content, since the resin content is set higher from the proximal end side to the distal end side of the tip, the entire tip may become too soft. In addition, it can contribute to the smooth deflection of the entire cocoon by suppressing the difference in rigidity from the hot pot.

  Moreover, in the said structure, the tip may have a solid cross section which consists of an inner side area | region formed from resin, and the outer side area | region which is formed from a reinforced fiber and surrounds the said inner side area | region. In addition to this configuration, by gradually reducing the outer diameter of the tip from the longitudinal base end side toward the distal end side, the ratio of the outer region to the inner region becomes smaller toward the distal end side (the entire cross section toward the distal end side). If the ratio of the inner region to the tip is increased, the resin content increases toward the tip end of the tip, so that the impact resistance increases toward the tip end of the tip.

  ADVANTAGE OF THE INVENTION According to this invention, the fishing rod which has the tip which can improve the impact resistance of the front end side can be provided.

Hereinafter, an embodiment of a fishing rod according to the present invention will be described with reference to the drawings.
FIG. 1 shows an example of a fishing rod. The fishing rod 1 includes a plurality of relay rods including a main rod 3 equipped with a cylindrical reel leg fixing device 10 that allows a leg 52 of a fishing reel (spinning reel) 50 to be attached and detached, and a head rod 7a. 7 and a five-piece splicing provided with a spear tip 4 to be spliced with respect to the hot pot 7a. In this case, the joining of the two flange members may be configured as a swing-out type, or may be configured as a side-by-side type. Moreover, the number of joints of each fence is arbitrary. Moreover, as will be described later, the structure of the tip 4 is configured to be solid.

  A plurality of fishing line guides (outer guides) 5 are provided on the rod (including the tip 4) so as to guide the fishing line fed from the reel 50 attached to the reel leg fixing device 10. . Further, the main shaft 3 may be provided with grips on the front and rear sides of the reel leg fixing device 10 as necessary.

  As shown in FIG. 2, the tip 4 has a base end 4 a connected to the head holder 7 a and a tip 4 b that forms the tip side of the tip 4, and is an epoxy resin, a polyester resin, or a phenol resin. It is comprised by the reinforced fiber (For example, carbon fiber, glass fiber, an aramid fiber) impregnated with matrix resins, such as. Of course, a so-called prepreg sheet formed by impregnating a reinforcing fiber with a resin may be included. As for the prepreg sheet, the reinforcing fibers constituting the prepreg sheet may be aligned in the axial direction, the circumferential direction, or the inclined direction.

  Further, in the present embodiment, the tip 4 is set such that the resin content on the distal end side in the longitudinal direction is higher than the resin content on the proximal end side. Specifically, in the present embodiment, the resin content changes stepwise or continuously from the longitudinal base end side to the front end side, for example, the resin content rate between the front end 4b and the base end 4a. Is 10% different. Alternatively, the resin content of the tip side region including the tip 4b corresponding to 20% of the total length of the tip 4 is 40% to 50%, and the resin content of the base end region including the base end 4a corresponding to 80% of the length of the tip 4 is included. The rate is 50% to 60%.

  Moreover, the following structure can be considered as a concrete ridge structure which sets the resin content rate of the tip direction side of the tip 4 higher than the resin content rate of the base end side.

  That is, first, a solid cross section of the tip 4 is configured as shown in FIG. As shown in the figure, the solid tip 4 has a circular solid cross section composed of an inner region 20 and an outer region 30 surrounding the inner region 20. In this case, the inner region 20 has a circular cross section with a predetermined diameter r centered on the axis of the heel, and the outer region 30 has an annular cross section with a diameter R that surrounds the outer periphery of the inner region 20. Yes. In the present embodiment, the solid section is a circular section, but the shape of the section is arbitrary. Specifically, it may have an elliptical shape or a rectangular solid cross section, and the boundary between the inner region 20 and the outer region 30 may also have an elliptical shape or a rectangular shape.

  In this case, the outer region 30 is formed from at least the reinforcing fiber 30a, and the inner region 20 is formed from the resin 20a. More specifically, the outer region 30 is a reinforcing fiber (for example, carbon fiber, glass fiber, aramid fiber) impregnated with a matrix resin such as an epoxy resin, a polyester resin, or a phenol resin and aligned in the axial direction. It consists of a bundle of 30a, which may or may not be twisted. On the other hand, the inner region 20 is made of a resin 20a such as an epoxy resin, a polyester resin, or a phenol resin. It may consist of only the resin 20a, or may have a configuration in which fibers or the like are scattered in the resin 20a. In addition, as a formation method of the solid structure which arrange | positions the reinforced fiber 30a which forms the outer side area | region 30 around the resin 20a which forms the inner side area | region 20, glass tube shaping | molding, pultrusion shaping | molding, etc. are mentioned, for example.

And in addition to such a cross-sectional structure, as shown in FIG. 3, by gradually reducing the outer diameter of the tip 4 from the longitudinal direction proximal end side toward the distal end side, the distal end side becomes more outward from the inner region 20. The ratio of the region 30 is decreased (the ratio of the inner region 20 (resin) in the entire cross section is increased toward the tip side). In this way, the resin content of the tip end side in the longitudinal direction of the tip 4 is the resin on the base end side, as is clear by comparing the cross section of FIG. 3 (b) and the cross section of FIG. 3 (c). It is set higher than the content rate. In this case, for example, at the distal end 4b, the diameter r of the inner region 20 is set to the diameter of the entire solid cross section of the tip, that is, 10% to 30% of the diameter R of the outer region 30, and at the proximal end 4b. The diameter r of the inner region 20 is preferably set to 5% to 20% of the diameter R of the outer region 30. Thereby, the resin content can be varied by 5% to 10% between the distal end 4b and the proximal end 4a. In the solid cross section of FIG. 3, only the cross section of the outer region 30 tapers in a tapered shape from the proximal end side toward the distal end side, and the cross sectional area of the inner region 20 is constant over the entire length, The cross-sectional shape of the inner region 20 may also taper from the proximal end side toward the distal end side. However, also in this case, the length of the tip 4 is reduced by reducing the ratio of the outer region 30 to the inner region 20 toward the tip side (increasing the proportion of the inner region 20 (resin) in the entire cross section toward the tip side). The resin content on the front end side in the direction is set to be higher than the resin content on the base end side.
As another means for setting the resin content rate at the tip end side in the longitudinal direction of the tip 4 to be higher than the resin content rate at the base end side, a means as shown in FIG. 5 is also conceivable. That is, the solid cross section of the tip is not formed from two concentric regions having different resin contents as shown in FIG. 3, but the tip 4 is formed by a mixture of the reinforcing fiber 30a and the resin 20a over its entire length. And forming the fiber density in the solid section on the proximal end side of the tip 4 (FIG. 5B) higher than the fiber density in the solid section on the distal end side (FIG. 5A) Thus, the resin content on the tip end side in the longitudinal direction of the tip 4 may be set higher than the resin content on the base end side. Such a cross-sectional form can be realized by arranging a large number of fibers on the base end side when performing, for example, glass tube forming.
Further, in order to set the fiber density in the solid section on the proximal end side of the tip 4 higher than the fiber density in the solid section on the distal end side, the outer diameter of the fiber is formed thicker from the distal end side to the proximal end side. May be. Also by this, the resin content rate of the tip direction side of the tip 4 can be set higher than the resin content rate of the base end side.

  As described above, the tip 4 of the fishing rod 1 of the present embodiment is composed of a reinforcing fiber impregnated with a resin, and the resin content at the distal end in the longitudinal direction is set higher than the resin content at the proximal end. ing. Therefore, due to the physical characteristics of the resin, the tip end side in the longitudinal direction is excellent in impact resistance. As a result, it is possible to prevent the tip end side of the tip 4 from being damaged due to contact with an obstacle, or the tip of the tip 4 from being bent due to bending of the heel caused by the trapping of the device.

It is a side view which shows an example of the fishing rod which concerns on one Embodiment of this invention. It is a side view of the tip of the fishing rod of FIG. (A) is longitudinal direction sectional drawing of the tip which concerns on other embodiment of this invention, (b) is sectional drawing which follows the AA line of (a), (c) is a BB line of (a). It is sectional drawing which follows. It is sectional drawing of the tip of FIG. It is sectional drawing which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fishing rod 4 Tip 4a Base end 4b Tip 20 Inner area | region 20a Resin 30 Outer area | region 30a Reinforcing fiber

Claims (3)

  A fishing rod having a tip which is a solid tip and is composed of reinforcing fibers impregnated with a resin, and has a resin content at the distal end in the longitudinal direction higher than a resin content at the proximal end.   2. A fishing rod having a tip according to claim 1, wherein the fishing rod has a solid cross section composed of an inner region formed of resin and an outer region formed of at least reinforcing fibers and surrounding the inner region.   3. A fishing rod having a tip according to claim 2, wherein the outer diameter of the tip gradually decreases from the base end in the longitudinal direction toward the tip, so that the ratio of the outer region to the inner region decreases toward the tip. .

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