JP2005229953A - Ordinary jointed fishing rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telescopically extensible fishing rod enabling easy attaching and detaching of rod members and keeping the fitting force for a long period. <P>SOLUTION: The butt section 1 of the fishing rod has a fitting female part X on the inner circumference of the tip-side end. The middle section 2 has a fitting male part Y on the outer circumference of the butt-side end and is detachably connected to the tip-side of the butt section 1 in an ordinary joint state. The fitting female part X has tapered parts 11 expanding toward the butt side and straight parts 12 having definite inner diameter in longitudinal direction, and the tapered parts and the straight parts are alternately formed in circumferential direction. The fitting male part Y of the middle section 2 has a diameter larger than that of the adjacent part and tapered to decrease the diameter toward the butt side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a fishing rod configured by connecting a plurality of rods, and more particularly, to a parallel-type fishing rod that connects rods in a cascaded manner.

  Many of the recent fishing rods are used as one long fishing rod by connecting a plurality of rods. One of such methods for connecting the enclosures is a so-called succession type. In this method, the inner peripheral surface of the tip side end of the large diameter rod located on the heel side is used as the fitting female portion, and the outer peripheral surface of the heel side end of the small diameter rod located on the tip side is fitted to the male. The fitting male part is inserted into the fitting female part and fitted to each other.

  Adopting such a connecting method of the case of the cascade type has problems such that the fitting force between the two decreases due to repeated use and the looseness is likely to occur, and conversely, the two stick together at the time of connection. . Therefore, techniques such as precise adjustment of the diameters of the fitting male part and the fitting female part and a change in the diameter of the fitting part have been widely proposed (for example, see Patent Document 1). However, such precise adjustment of the diameter is complicated, and the diameter may change due to wear during use. Therefore, a technique for coping with such a diameter change has also been proposed (see, for example, Patent Document 2).

  For example, in the above-mentioned proposal in Patent Document 2, the male side and the female side of the fitting portion are each formed into a two-stage structure having a large diameter and a small diameter, and the fitting of the male and female portions is surrounded in the small diameter portion. It is only part of the direction. This is intended to cope with subtle changes in diameter associated with the use of a fishing rod by adopting a two-stage structure.

However, it is complicated to dare to form the fitting portion in a two-stage structure. Regardless of the case where the stamping core as disclosed in the above-mentioned Patent Document 2 is used, it is difficult to form a two-stage structure having different inner diameters in one casing when employing a normal side-by-side configuration. If the fitting portion has a two-stage structure, the fitting force is produced in each of the two fitting portions. For this reason, it is lacking in the production | presentation of the change of the continuous fitting force at the time of connecting housings.
JP 2001-321030 Japanese Patent Laid-Open No. 2002-320429

  The present invention provides a series-type fishing rod that can be easily detached from each other and can maintain its fitting force over a long period of time. In particular, the present invention provides a fishing rod that is capable of continuously changing its fitting force when connected by fitting the rods together, and is rich in operability.

  The fishing rod of the present invention has a first housing having a fitting female portion on the inner periphery of the tip side end portion, a fitting male portion on the outer periphery of the tip side end portion, and a joint type on the tip side of the first housing. And a second housing that is detachably connected. The fitting female portion on the inner periphery of the tip end portion of the first housing has a tapered surface portion whose diameter increases toward the base side in the axial length direction, and a straight surface portion whose inner diameter does not change in the axial length direction. Are alternately formed in the circumferential direction. On the other hand, the fitting male part on the outer periphery of the base side end of the second housing is a part having a larger diameter than other adjacent parts, and is a tapered surface having a smaller diameter on the base side.

  This fishing rod is used as a single fishing rod by inserting and coupling the fitting male portion of the second rod to the fitting female portion on the tip side of the first rod. When the mating male part is inserted into the mating female part, the mating male part comes into contact with the straight surface part of the mating female part at any time, and the insertion degree of the mating male part having a tapered surface becomes deeper. Accordingly, the fitting female part undergoes some elastic deformation, and the fitting male part deeply bites and fits into the straight surface part. Thus, the fitting force continuously changes. On the other hand, the tapered surface portion of the fitting female portion does not fit with the fitting male portion as a general rule, preventing unfair adhesion between the fitting female portion and the fitting male portion. However, in the starting portion of the diameter change on the most tip side of the tapered surface portion of the fitting female portion (that is, the portion where the straight surface portion and the tapered surface portion are integrated), the fitting female portion is on the entire circumferential surface. The fitting male part is fitted over the entire circumference, and the necessary fitting force is produced.

  By continuously changing the fitting force in this way, the necessary fitting force can be sufficiently produced even if the fitting portions are worn away by use, and the connection operability is excellent. In addition, operations such as precise diameter matching are not necessary, and it can be manufactured relatively easily as follows.

  That is, such a fitting female portion can be formed relatively easily by winding and firing a prepreg material around a core material whose tip end side end portion is processed in a predetermined shape in advance. Alternatively, it can also be easily formed by winding and firing a prepreg material around a core material in which a straight surface portion whose diameter does not change is previously formed on the tip side, and then scraping and forming the straight surface portion on the tip end side inner diameter.

  In addition, Preferably, the reverse taper surface which diameter-expands in the tip side is formed in the tip side edge of the fitting female part of the inner peripheral surface of the tip side end part of a 1st housing. By forming such a reverse tapered surface, the insertion operation for inserting the fitting male part into the fitting female part becomes easy.

  The fishing rod of the present invention can prevent sticking while maintaining the fitting force between the rods over a long period of time. Further, during the coupling operation, the change in the fitting force between the casings is continuous, and the operability is excellent.

One of the fishing rods according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, this fishing rod is composed of a marine rod 1, a former rod 2, a middle rod 3, and a rod rod 4 that are connected to the head side of the former rod 1 in a side-by-side manner. However, the number of housings is not limited to this, and can be set arbitrarily. A reel sheet 5 for detachably mounting the reel is provided on the peripheral surface of the large-diameter main bar 1 located on the most base side. Further, a fishing line guide 6 for guiding the fishing line from the reel is attached to the peripheral surface of each housing at an interval in the axial direction. A top guide 7 is attached to the end of the tip end 4 of the tip end. Each casing is a tubular body with a tapered taper formed by firing a prepreg material impregnated with a synthetic resin of reinforcing fibers.

Next, the connecting portion of each housing will be described with reference to the base rod 1 and the top rod 2 as an example.
(About Genroku 1)
As shown in detail in FIG. 2, the base rod 1 is a tubular body having a taper that reduces the diameter of the tip side as a whole. The inner peripheral surface on the tip side is a fitting female portion X for connection with the former upper collar 2. Specifically, the fitting female portion X has a reverse taper portion 10 that is reduced in diameter from the tip side edge of the base rod 1 toward the base side, and a tapered surface that is continuously formed on the base side of the reverse taper portion 10. It consists of a portion 11 and a straight surface portion 12. The tapered surface portions 11 and the straight surface portions 12 are formed alternately in the circumferential direction in the same axial region (see FIG. 3).

  The reverse taper portion 10 is formed in an axial region of about several millimeters from the tip side end portion of the base rod 1. As will be described later, it can be formed by reaming the inner peripheral surface of the tip end side after the production of the base rod 1.

  As shown in FIG. 3, the tapered surface portion 11 extends in the axial length direction in three regions spaced apart at equal intervals in the circumferential direction. The tapered surface portion 11 is basically continuous with the portion other than the fitting female portion X, and is a part of the tapered surface that the inner peripheral surface of the main shaft 1 has as a whole. The straight surface portion 12 is three portions formed side by side in the circumferential direction between the tapered surface portions 11. The straight surface portion 12 is a portion where the inner diameter does not change in the axial direction. A manufacturing method for the straight surface portion 12 will be described later. In addition, the taper surface portion 11 and the straight surface portion 12 formed side by side in the circumferential direction in this manner have the same diameter on the tip side (see FIG. 4). That is, the inner diameter of the tip side end of the straight surface portion 12 is the same as the inner diameter of the tapered surface portion 11. Therefore, the straight surface portion 12 has a smaller diameter compared with the tapered surface portion 11 whose diameter is increased toward the adjacent flange side by not changing the inner diameter in the axial direction.

  In addition, in this main fence 1, although the taper surface part 11 and the straight surface part 12 are formed in three places, the number can be set arbitrarily.

Next, an example of a method for manufacturing the marshal 1 will be described.
As shown in FIG. 5, a core material 20 having a predetermined tapered taper is prepared. On the tip side of the core material 20, a part of its outer peripheral surface is cut away to form a surface whose diameter does not change in the axial length direction (see FIG. 6). A necessary number of the surfaces whose diameters do not change are formed at intervals in the circumferential direction. A release material or the like is applied to the peripheral surface of the core material 20 as necessary, and the prepreg material 21 is wound. The prepreg material 21 is made by impregnating a synthetic resin after arranging reinforcing fibers such as carbon fibers. As the prepreg material 21, in addition to a sheet-like material as shown in FIG. 5, a prepreg material processed into a tape shape is used in combination. At this time, prepreg materials having different orientation directions of reinforcing fibers are used.

  After the necessary prepreg material 21 is wound around the core material 20, a forming tape or the like is further wound around the outermost layer for protection and formation, and these are fired in a furnace to solidify and integrate the prepreg material. And the core material 20 is pulled out to the large diameter side, and a tubular body is obtained. At this time, a part of the peripheral surface on the tip side of the core material 20 is a portion where the diameter does not change, but the core material 20 can be pulled out to the large diameter side. In this way, as shown in FIG. 7, a tubular body having a portion where the diameter does not change is provided in a portion of the inner peripheral surface on the tip side, and the other portion is tapered.

Thereafter, a part of the inner peripheral surface of the end of the tubular body on the tip side is scraped off by reamer processing or the like to form an inversely tapered surface (see FIG. 7). In addition, if necessary, the inner and outer peripheral surfaces are polished or painted to obtain the base 1.
(About Motogami 2)
As shown in FIG. 2, the upper collar 2 is also a tubular body tapered as a whole. A fitting male portion Y is formed on the outer periphery of the base side end portion. The fitting male part Y is a part that is one step thicker than the other parts. Such a fitting male part Y is, for example, formed in a part on the base side when the prepreg material is wound around the core material and fired to produce the upper part 2 as described in the above-mentioned main part 1. The auxiliary prepreg for forming the fitting male part Y can be wound and formed.

The fitting male part Y is tapered so that the diameter decreases toward the base side (preferably, the taper rate is about (1/1000 to 5/1000)). The outer diameter is preferably set so as to coincide with the inner diameter of the straight surface portion 12 of the fitting female portion X in the vicinity of the center of the fitting male portion Y in the axial length direction.
(Other enclosures)
Up to this point, the fitting female portion X and the fitting male portion Y of the former rod 1 and the former upper rod 2 have been described, but the same structure is also adopted in the connecting portion between the other rods.

  The fishing rod as described above is used as a single fishing rod by connecting the upper rod 2 to the tip side of the former rod 1 and further connecting the middle rod 3 and the tip rod 4 sequentially. At the time of connecting the respective housings as described above, the connecting portions are as follows. For example, when the mating male part Y of the former collar 2 is inserted into the mating female part X of the former collar 1, the reverse taper part 10 is exceeded by the three straight surface portions 12 in the circumferential direction of the mating female part X. As the fitting male part Y abuts at any time and the insertion degree of the fitting male part Y having a tapered surface becomes deeper, the fitting female part X undergoes some elastic deformation. And it bites into the fitting male part Y straight surface part 12 deeply. Thus, the fitting force changes continuously. On the other hand, the tapered surface portion of the fitting female portion X does not fit with the fitting male portion Y in principle, and prevents the fitting female portion X and the fitting male portion Y from being improperly fixed (see FIG. 3). .

  However, as shown in FIG. 4, in the starting portion of the diameter change on the most tip side of the tapered surface portion 11 of the fitting female portion X (that is, the portion where the straight surface portion 12 and the tapered surface portion 11 are integrated). The fitting female part X is fitted with the fitting male part Y over the entire circumference, and the necessary fitting force is produced.

The figure which showed the fishing rod which concerns on one embodiment of this invention. The expanded sectional view of the connection part of the former rod 1 and the former upper rod 2 of the fishing rod of FIG. III-III sectional drawing of FIG. IV-IV sectional drawing of FIG. The figure which showed the manufacturing process of the main fence 1 of FIG. FIG. 6 is an enlarged view of a part of the core member 20 of FIG. 5. Sectional drawing in the middle of manufacture of the main fence 1. FIG.

Explanation of symbols

1 Gentle ridge 2 Genuine upper ridge 10 Reverse taper part 11 Tapered surface part 12 Straight surface part X Fitting female part Y Fitting male part

Claims (2)

A first housing having a fitting female portion on the inner periphery of the tip side end portion and a fitting male portion on the outer periphery of the tip side end portion are detachably connected to the tip side of the first housing in a side-by-side manner. A second housing,
The fitting female portion on the inner periphery of the tip end portion of the first housing includes a tapered surface portion whose diameter increases toward the base side in the axial length direction, and a straight surface portion whose inner diameter does not change in the axial length direction. Are alternately formed in the circumferential direction,
A fishing rod, wherein the fitting male part on the outer periphery of the base side end of the second casing is a part having a larger diameter than other adjacent parts, and is a tapered surface having a smaller diameter on the base side.   2. The fishing rod according to claim 1, wherein a reverse taper surface having a diameter increasing toward a tip side is formed at a tip side end edge of a fitting female portion on an inner peripheral surface of a tip side end portion of the first body.

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