JP2005287349A - Fishing rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fishing rod that can inhibit the male edge part and the female edge part constituting a rod-connecting part from being fixedly adhered. <P>SOLUTION: In this fishing rod that has the connection part 10 in which the male edge part 20 formed on one end of a larger diameter rod tube 18 is fitted to the female edge part 16 formed on one edge of an adjacent smaller diameter rod tube 12, the inner face of the female edge part 16 is tapered steeper than that of the outer face of the male edge 20. A plurality of projections 22 are formed from one side of the inner face or the outer face at an equal interval in the circumferential direction. When the male edge part 20 is fitted to the female edge 16, spaces 28 communicating to the outside are formed between the mutually adjacent projections and between the inner circumferential face and the outer circumferential face. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fishing rod, and more particularly to a fishing rod formed by joining a plurality of rods.

A fishing rod formed by joining together a plurality of rods is sealed from the external environment, for example, due to water wetting during use, and the like. If it is used for a long time in such a state, the joint part which joins the soot pipes may adhere due to a sudden change in the outside air temperature. Various methods have been developed to prevent such joints from sticking. As an example, by forming a concave portion extending in the circumferential direction at the intermediate portion of the tapered portion of the small-diameter soot tube that engages the tapered portion of the large-diameter soot tube, it is possible to prevent the taper portions from sticking to each other. Fishing rods have been developed (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 53-39787

  However, the joint portions of such conventional fishing rods have their joint surfaces in contact with each other, and the joint surfaces of the joint portions are completely sealed from the outside. For this reason, even if the contact area can be reduced by the recesses and the frictional force between them can be reduced, if the recesses formed between these taper parts are sealed from the outside due to water wetting, the recesses are sealed. Therefore, there is a high possibility that the joint portion is fixed.

Such a joint is provided in a swing-type, side-by-side, reverse side-by-side, or stamp-and-join type fishing rod. When the outside air temperature falls during actual fishing, the recess between the joint surfaces is vacuumed. Thus, the bond between the joining surfaces is firmly fixed. In addition, when the joint surface is fixed in an excessively fitted state due to a decrease in sliding resistance of the joint surface due to water wetting, the contact area increases and the friction between the surfaces in contact with each other is increased. Resistance also increases. For this reason, if it tries to remove the adhering joint part forcibly, it will cause damage to the soot tube.
This invention is made | formed based on such a situation, and it aims at providing the fishing rod which can prevent that the male end part and female end part which form a joint part adhere.

  The fishing rod of the present invention that achieves the above object is a fishing rod that forms a joint portion by fitting a male end portion formed on one end of a rod tube and a female end portion formed on an adjacent rod tube. Then, the inner peripheral surface of the female end portion is formed into a tapered surface that is steeper than the outer peripheral surface of the male end portion, and a plurality of inner peripheral surfaces are arranged at equal intervals along the circumferential direction from one of these inner peripheral surface and outer peripheral surface. When the male end and the female end are fitted, a gap communicating with the outside is formed between the inner peripheral surface and the outer peripheral surface between the adjacent convex portions. It can be formed.

  Furthermore, according to the present invention, there is provided a fishing rod that forms a joint portion by fitting a male end portion formed at one end of the rod tube and a female end portion formed on the adjacent rod tube, The inner peripheral surface of the portion is formed into a tapered surface that is more gently inclined than the outer peripheral surface of the male end portion, and at a position close to the distal end side of the male end portion, from one of these inner peripheral surface and outer peripheral surface, When projecting a plurality of convex portions at equal intervals along the direction and fitting these male end portions and female end portions, between the adjacent peripheral portions, between the inner peripheral surface and the outer peripheral surface Further, a fishing rod capable of forming a gap communicating with the outside is provided.

  According to the fishing rod of the present invention, between the convex portions adjacent to each other, a gap communicating with the outside is formed between the inner peripheral surface of the female end portion and the outer peripheral surface of the male end portion. Suppress. This prevents the male end and female end forming the joint from sticking, and even when used over a long period of time, the space between the mating parts that fit together may be in a vacuum state. Absent.

1 to 3 show a fishing rod joint according to a preferred embodiment of the present invention.
The joining portion 10 of the present embodiment is formed in an anti-parallel manner. For example, an ear portion 14 formed integrally with the outer periphery of the rear end portion of a small-diameter tub tube 12 that is a tip end is a female end portion. 16 and a tapered end portion of the large-diameter soot tube 18 forms a male end portion 20 that fits into the female end portion 16 formed by the ear portion 14. The inner peripheral surface of the female end portion 16 is steeper than the outer peripheral surface of the male end portion 20 (e.g., a gradient of approximately 3.00 / 1000), i.e. It is formed on a tapered surface that is larger than the inclination angle with respect to the axis of the large-diameter soot tube 18. These small-diameter soot pipes 12 and large-diameter soot pipes 18 are formed through a normal process such as curing and decentering after winding a fiber reinforced prepreg (FRP) in which a reinforcing fiber is impregnated with a synthetic resin around a core metal. Is done. The small-diameter rod 12 and the large-diameter rod 18 are not limited to the hollow structure as shown in the figure, but can be formed into a solid structure that can greatly deflect the fishing rod.

  The ear portion 14 forming the female end portion 16 is formed by winding a fiber-reinforced prepreg forming the small-diameter rod tube 12 around a core bar when forming the small-diameter rod tube 12, and then, at the rear end portion, a narrow fiber It is possible to form the reinforcing prepreg integrally with the small-diameter soot tube 12 by overlapping and winding the tip portion. The narrow fiber reinforced prepreg forming the ear portion 14 is formed in a trapezoidal shape in which the edge on the rear end side is perpendicular to the axis of the core bar and the edge on the front end side is inclined. It is preferable to form the tip end surface 14a of the ear portion 14 as an inclined surface inclined with respect to the central axis of the small-diameter rod 12 by winding from the portion.

  The ear portion 14 is preferably 30 to 130 mm, which is approximately 50 mm from the rear end portion of the small diameter trough tube 12 by winding one or more layers of reinforcing prepregs in which reinforcing fibers are arranged in the circumferential direction or the inclined direction. The female end portion 16 is formed in a portion protruding from the small-diameter soot tube 12. By using the reinforcing prepreg in which the reinforcing fibers are arranged in the inclined direction in this way, it is possible to improve the strength while suppressing a rapid increase in the bending rigidity of the joint portion 10, particularly the ear portion 14. The reinforcing prepreg in which the reinforcing fibers are arranged in the circumferential direction may be wound around the outer side of the ear part 14, but in order to further increase the axial frictional force with the male end part 20, it is arranged inside. In addition, it is preferable to form a concavo-convex surface with reinforcing fibers in the circumferential direction at least on a portion of the inner peripheral surface that contacts the outer surface of the male end portion 20. In addition, it is possible to increase the frictional force in the axial direction of the male end portion 20 by winding a prepreg in which reinforcing fibers are arranged in a circumferential direction or an inclination direction other than the axial direction on the outside of the male end portion 20. Is possible.

  The female end portion 16 includes a plurality of convex portions 22 that protrude from the inner peripheral surface. These convex portions 22 are a flat region 24 extending substantially parallel to or inclined with respect to the central axis of the small-diameter tubular tube 12, and a convex curved region that smoothly transitions the flat region 24 to the large-diameter side of the inner peripheral surface. 26, and the fiber reinforced prepreg in which the reinforcing fibers are aligned in the circumferential direction among the reinforced prepregs that form the ears 14 as described above, in an integrated structure continuous to the inner peripheral surface of the female end 16 Preferably formed. As a result, the convex portion 22 forms a strong integrated structure with the ear portion 14 and the small-diameter lance tube 12, and an uneven surface due to circumferential reinforcing fibers is also formed in the flat region 24 that contacts the male end portion 20. The

  The flat region 24 of the convex portion 22 extends over a range of 5 to 125 mm from the rear end portion of the ear portion 14, for example, with an inclination angle in the range of approximately 0/1000 to 4.0 / 1000, and the most protruding rear portion. The protruding height from the inner peripheral surface at the end is preferably in the range of 0.02 to 0.15 mm, preferably 0.03 mm. Further, the curved region 26 is formed in a range of 3 to 15 mm where the radius of curvature is preferably about 10 mm. As a result, when the male end 20 is inserted into the female end 16, the male end can be easily inserted, and the end of the male end 20 is prevented from damaging the rear end of the convex portion 22. be able to.

  FIG. 3 shows some arrangement examples of such convex portions 22. 3 (A) is arranged at two locations opposed to each other in the radial direction, (B) is arranged at three locations separated by 120 ° in the circumferential direction, and (C) is 90 ° in the circumferential direction. It is arranged at four places separated one by one. In either case, the flat region 24 contacts the outer peripheral surface of the male end portion 20 in a point or line contact state, and the female end portion 16 and the male end portion 20 do not make surface contact. A gap 28 communicating with the outside of the joint portion 10 is formed between the convex portions 22 and 22 adjacent to each other between the inner peripheral surface of the female end portion 16 and the outer peripheral surface of the male end portion 20. . Each convex portion 22 is pressed on the outer peripheral surface of the male end portion 20 at a position spaced apart from each other at equal intervals in the circumferential direction via the flat region 24, and the male end portion 20 and the female end portion 16 are coaxial with each other. Is maintained in a consistent state. In this specification, the point contact is not a state where there is no contact area, but includes an actual state having a certain area, and a line contact is not a state where there is no width at all. This includes a contact state other than the contact between curved surfaces or planes having the same curvature, including an actual state having a width.

  In the joint portion 10 formed in this way, when the male end portion 20 is completely fitted to the female end portion 16, the inner peripheral surface of the female end portion 16 is tapered more steeply than the outer peripheral surface of the male end portion 20. As a result, the tip of the outer peripheral surface of the male end portion 20 contacts the tapered surface formed on the inner peripheral surface of the female end portion 16 over the entire periphery. Line contact. Further, the flat region 24 of the convex portion 22 protruding from the inner peripheral surface of the female end portion 16 is in contact with the outer peripheral surface at a position behind the front end portion of the male member 20, and extends in a point contact or axial direction. It will be in the state of line contact. Since the flat region 24 uniformly presses the outer peripheral surface of the male member 20 at a position equally spaced in the circumferential direction, a uniform repulsive force is formed from the male member 20 along the circumferential direction.

  The pressing force between the female member 16 and the male member 20 is not limited to the dimension between the height at which the flat region 24 protrudes and the outer diameter of the male member 20 at the position in contact with the flat region 24. The degree of smoothing of the surface of one or both of the inner peripheral surface of the female member 16 and the outer peripheral surface of the male member 20 may be adjusted. Furthermore, a coating may be applied to at least one of these surfaces, and such a coating can be formed by epoxy resin or urethane resin, for example, by lacquer coating, and the thickness thereof is 0.01 to 0.08 mm. In this range, approximately 0.02 mm is preferable. The reason for this thickness is to prevent the surface of the material from being scratched or worn away by inserting / removing the joint portion.

  When the female end portion 16 and the male end portion 20 are completely fitted, the distal end portion of the male end portion 20 is, for example, in the range of 1 to 15 mm with respect to the rear end portion of the small-diameter fistula 12 in the ear portion 14. It is preferable that they face each other with an axial interval of about 8 mm. Thereby, when the ear | edge part 14 bends, it can prevent that the male end part 20 is pressed behind the soot pipe in the rear-end part of the small diameter soot pipe 12, and falls off from the female end part 16. FIG.

  According to the fishing rod provided with such a joining portion 10, surface contact between the female end portion 16 and the male end portion 20 is prevented, and a state of point contact or line contact with each other is maintained. Since the gap 28 between 22 communicates with the outside of the tub tube, the male end portion 20 and the female end portion 16 are securely fitted without highly sealing between the opposing surfaces of the joint portion 10. For this reason, even when the joining portion 10 is formed in a side-by-side, reverse side-by-side, or Inba-joint type structure, the female end can be rapidly There is no vacuum between the inner peripheral surface of the portion 16 and the outer peripheral surface of the male end portion 20. Furthermore, even when the sliding resistance is lowered due to water wetting etc., due to the difference in the inclination angle between the inner peripheral surface of the female end portion 16 and the outer peripheral surface of the male end portion 20, it does not enter excessively. Even if the male end 20 enters the female end 16 excessively, a large contact area is not formed. Therefore, in the joint portion 10, the female end portion 16 and the male end portion 20 are prevented from sticking, and when the soot tube is joined or removed at the joint portion 10, the soot tube is damaged by such sticking. Is prevented.

  The protrusions 22 can be provided not only in the circumferential direction as described above but also in the axial direction as shown in FIGS. 4 and 5. Note that the embodiment or modification described below is basically the same as the above-described embodiment, and therefore, similar parts are denoted by the same reference numerals and detailed description thereof is omitted.

  In the joining portion 10A shown in FIGS. 4 and 5, the convex portion 22 includes a plurality of front convex portions 22A protruding from the tip side of the tapered surface formed by the inner peripheral surface of the female end portion 16, and the front convex portion. A plurality of rear protrusions 22B spaced rearward from the portion 22A in the axial direction. When the male end portion 20 is fitted to the female end portion 16, the front convex portion 22A is joined to the distal end portion of the male end portion 20, and the rear convex portion 22B is separated from the distal end portion. Join to the outer surface.

  These front convex portion 22A and rear convex portion 22B can be arranged at positions aligned along the axial direction, but are particularly opposed to each other in the radial direction as illustrated in FIG. When provided only in two places, they are arranged at positions shifted in the circumferential direction, for example, arranged so that the entire front convex part 22A and rear convex part 22B are shifted from each other by 90 ° along the circumferential direction. Is preferred. As a result, the pressing force can be uniformly distributed over the entire circumference of the male end portion 20. When providing the front convex part 22A and the rear convex part 22B at positions aligned along the axial direction, the front convex part 22A and the rear convex part 22B are made continuous, or the inclination angle with respect to the central axis is set. It can also be formed into an altered stepped structure.

  This joining portion 10A is axially spaced from the front convex portion 22A and the rear convex portion 22B of the front convex portion 22A projecting from the inner peripheral surface of the female end portion 16 and the outer peripheral surface of the male end portion 20, and It fits securely by making point or line contact at equally spaced positions along the circumferential direction. Thereby, 10 A of joining parts do not loosen during actual fishing. In addition, the connecting portion 10A of the fishing rod is not sealed between the opposing surfaces of the connecting portion 10A because the gap 28 between the convex portions 22 completely communicates with the outside. Therefore, during actual fishing over a long period of time, the outside air temperature changes suddenly, and the joining portion 10A is in a vacuum state and is not fixed.

  The various embodiments and modifications shown in the drawings have been individually described above, but the present invention is not limited to any of the embodiments or modifications, and can be appropriately changed according to various applications. It is possible to combine them.

  For example, the convex portions 22 are not limited to one or two locations along the axial direction, and can be provided at equal intervals in the circumferential direction at three or more locations. Even in the case of being provided at one place along the axial direction, it may be provided at the front end side or at the intermediate portion instead of being provided at the rear end side of the inner peripheral surface of the female end portion 16 as described above. In particular, when the convex portion 22 is provided on the distal end side, the inner peripheral surface of the female end portion 16 is inclined more gently than the outer peripheral surface of the male end portion 20, in other words, the male end is more than the inner peripheral surface of the female end portion 16. The outer peripheral surface of the portion 20 is formed into a steeply tapered surface. Instead of forming such a tapered surface over the entire inner peripheral surface of the female end portion 16, it can also be formed on the rear side of the rear end portion of the convex portion 22. Further, when the convex portions 22 are provided at a plurality of locations along the axial direction, the number of the convex portions 22 arranged at equal intervals along the circumferential direction is not limited to the same number at each position in the axial direction. It can be a different number.

  Such joining parts 10 and 10A can be applied not only to the reverse joint type, the joint type, or the stamping type but also to a swing type fishing rod. When used in a swing type fishing rod, the rear end portion of the small-diameter rod pipe forms a male end portion, and the front end portion of the large-diameter rod pipe forms a female end portion. Also in this case, surface contact between the opposing surfaces of the joint portion is prevented, and a vacuum state is not caused. For this reason, even if the outside air temperature changes abruptly or the joint portion gets wet with water, damage to the soot tube due to the joining of the joint portions 10 and 10A is prevented.

Sectional drawing which follows the axial direction of the joint part of the fishing rod by preferable embodiment of this invention. Sectional drawing of the female end part of the joining part of FIG. FIG. 1 is a cross-sectional view taken along line III-III in FIG. (C) is sectional drawing of the state similarly provided in four places. Sectional drawing similar to FIG. 1 of the joining part by other embodiment. Sectional drawing similar to FIG. 2 of embodiment of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Joint part, 12 ... Small diameter tubule, 14 ... Ear part, 16 ... Female end part, 18 ... Large diameter tubule, 20 ... Male end part, 22 ... Convex part, 24 ... Flat area | region, 26 ... Curve area | region 28 ... Gap.

Claims (5)

  A fishing rod that fits a male end formed on one end of a rod and a female end formed on an adjacent rod to form a joint, and the inner peripheral surface of the female end Formed on a taper surface that is steeper than the outer peripheral surface of the male end portion, and projecting a plurality of convex portions at equal intervals along the circumferential direction from one of the inner peripheral surface and the outer peripheral surface. A fishing rod characterized in that a gap communicating with the outside can be formed between the inner peripheral surface and the outer peripheral surface between adjacent convex portions when the portion and the female end portion are fitted.   A fishing rod that fits a male end formed on one end of a rod and a female end formed on an adjacent rod to form a joint, and the inner peripheral surface of the female end It is formed on a tapered surface that is more gently inclined than the outer peripheral surface of the male end portion, and is equidistant along the circumferential direction from one of these inner peripheral surface and outer peripheral surface at a position close to the distal end side of the male end portion. When projecting a plurality of convex portions and fitting the male end portion and the female end portion to each other, the convex portions adjacent to each other communicate with the outside between the inner peripheral surface and the outer peripheral surface. A fishing rod characterized in that a gap can be formed.   The convex portion is formed integrally with the inner peripheral surface of the female end portion by a fiber reinforced prepreg in which reinforcing fibers are aligned in the circumferential direction, and can be joined to the outer peripheral surface of the male member. The fishing rod according to claim 1, further comprising a curved region that smoothly transitions to a larger diameter side of the inner peripheral surface.   The convex portion has a plurality of front convex portions protruding from the front end side of the tapered surface formed by the inner peripheral surface, and a plurality of rear convex portions spaced apart from the front convex portion in the axial direction. When the end portion and the female end portion are fitted, the front convex portion is joined to the distal end portion of the male end portion, and the rear convex portion is joined to the outer peripheral surface of the male member at a position separated from the distal end portion. The fishing rod according to any one of claims 1 to 3, characterized by being combined.   The fishing rod according to claim 1 or 3, wherein when the male end portion is fitted to the female end portion, the tip end portion of the outer peripheral surface abuts on the inner peripheral surface of the female end portion over the entire circumference.

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