JP2001314140A - Fishing rod body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fishing rod body having a butt cap and an engaging part capable of sufficiently maintaining an engaging force for a long period of time without sticking to each other. SOLUTION: A base fishing rod 1 is a slightly tapered cylindrical member. The base fishing rod has a female screw part 11 formed on the inner peripheral surface at the end part of the fishing rod end part of the base fishing rod 1. The butt cap part 3 is detachably screwed to the female screw part 11. A diameter expansion part 1a being the inner peripheral surface adjoining to the side of an ear tip of the female screw part 11 is provided with plural projection parts 12 extended in the axial direction at intervals in the circumferential direction. The projection parts 12 are engaged with an engaging part 33 of the butt cap 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod constituting a fishing rod used for fishing.

[0002]

2. Description of the Related Art In recent years, in order to reduce the strength and weight of a cylindrical rod body constituting a fishing rod, a sheet or tape-like fiber reinforced resin (prepreg) in which carbon fiber or glass fiber is impregnated with a synthetic resin is used. Be composed. This rod body is manufactured by applying a release material or the like to the peripheral surface of a cylindrical core material with a tapered taper, winding prepreg any number of times while applying pressure, and firing it in a furnace. Is done.

[0003] By the way, a rubber stopper member called a tail plug is removably inserted into the end of the former rod located closest to the rod in the conventional rod body. Such a butt plug has a fitting male part inserted into the rod base side of the former rod, and this fitting male part is fitted to the rod base inner peripheral surface of the former rod and fixed detachably. I have.

[0004]

The fitting portions of the conventional fishing rods described above produce a fitting force by delicately adjusting the inner diameter of the base end of the original rod and the outer diameter of the male fitting portion. . However, such adjustment of the diameter is troublesome, and in some cases, this fitting portion is fixed at the time of fitting and it is difficult to release the fitting. Further, if the buttocks are repeatedly removed, the fitting force may be reduced.

[0005] It is an object of the present invention to provide a rod body having a fitting portion with a buttocks that can maintain a sufficient fitting force for a long time without being fixed to each other.

[0006]

Means for Solving the Problems The rod according to Invention 1 is
A rod body constituting a fishing rod used for fishing, comprising: a tubular main body having a tapered taper; Projecting portion gradually protrudes in the inner circumferential direction toward the base side, and a protruding portion whose inner circumferential surface is formed parallel to the axial center line of the main body portion, is detachably attached to the rod base side of the main body portion, and is attached to the protruding portion. And a tail plug having a fitting portion having elasticity so as to be fittable.

In this rod body, when the butt plug is mounted on the rod body, the butt plug is arranged on the end face of the rod body at the base of the rod, and the fitting portion is inserted into the rod body so that the base of the rod body is inserted. It is fitted and fixed to the protrusion formed on the side inner peripheral surface. By fitting the elastic fitting portion to the protruding portion, it is not necessary to finely adjust the diameter of the fitting portion, and the manufacturing becomes easy. Further, since the entire peripheral surface of the fitting portion is not directly fitted to the inner peripheral surface of the rod body, unnecessary fixation can be prevented, and even if the fitting is repeated, the deformation of the fitting portion is small and the reduction of the fitting force is suppressed. Can be

The projecting portion of the rod body is a cylindrical core material tapered so that the diameter becomes smaller toward the tip end, and a concave groove is formed on the peripheral surface of the rod base side. , Can be easily manufactured as follows. The groove is formed so as to be shallower toward the tip and gradually deeper toward the base of the rod. That is, a releasing material is applied to the peripheral surface of the core material as necessary, and a sheet-shaped prepreg in which a thermosetting resin is impregnated into carbon fibers or glass fibers aligned in one direction is wound while applying pressure. I do. Here, the pressurized synthetic resin of the prepreg intrudes into the concave groove of the core material to form a projecting portion integrally. Thereafter, they are fired. Then, the core material is pulled out, and both ends are cut into appropriate lengths and subjected to surface treatment to manufacture a rod body. In adopting such a manufacturing method,
The protruding portion is formed by a concave groove of a predetermined shape, gradually protrudes in the inner circumferential direction from the tip side to the rod base side, and since the inner circumferential surface is formed parallel to the axial direction of the main body portion, it is tapered. After the firing, the core material can be easily pulled and pulled in the direction toward the base of the rod.

A rod according to a second aspect of the present invention is the rod of the first aspect, wherein the protruding portions are formed to extend in the axial direction at intervals in the circumferential direction. In this case, a plurality of protruding portions are provided extending in the axial direction, and the fitting force with the buttocks is sufficiently improved. A rod body according to a third aspect of the present invention is the rod body according to the first or second aspect, wherein the main body portion has a diameter-enlarged portion on the rod base side where the taper is larger than other portions, and the protrusion has an inner periphery of the diameter-increased portion. Formed on the surface.

In this case, the rod body itself has a two-step taper, and a protruding portion is formed at an enlarged portion where the taper is large. Therefore, it is easy to pull out the core material in the above-described manufacturing method. is there.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a through rod according to one embodiment of the present invention includes a main rod 1 and a main rod 1.
A front pole 2 connected to the front side of the main pole 2, a middle pole 3 connected to the front side of the former pole 2, and a front pole (not shown) connected to the front side of the middle pole 3. ing. Each of the main rod 1 to the head rod is a tapered cylindrical member formed from a prepreg obtained by impregnating a synthetic resin into carbon fiber, glass fiber, or the like, and has a fishing line passage therein.

The original rod 1 has a reel sheet 4 formed on an outer peripheral surface thereof and to which a reel 5 can be detachably attached, and a tail plug 3 is detachably attached to an end of the original rod. In addition, the former upper rod 2 is formed on the outer peripheral surface of the tip side and the fishing line L
The fishing line introduction hole 6 which introduces into a rod body is formed,
A fishing line guide 7 arranged to cover the fishing line introduction hole 6 is fixed. A top guide is attached to the end of the tip of the head rod, and the fishing line L from the reel 5 passes through the fishing line guide 7 and the fishing line introduction hole 6 and is guided to the fishing line passage in the former upper rod 2 to be directed to the head rod. It will be guided to the outside from the top guide on the tip side.

As shown in FIG. 2, the original rod 1 is a cylindrical member having a slightly tapered shape. In particular, an enlarged diameter portion 1a having a larger taper inclination than other portions is provided near the pole base side (see FIG. 3). In addition, it has a female screw portion 11 formed on the inner peripheral surface of the rod end side end of the rod 1. The tail plug 3 is detachably screwed into the female screw portion 11. Also, an enlarged diameter portion 1a which is an inner peripheral surface adjacent to the tip side of the female screw portion 11.
Are formed with a plurality of protrusions 12 extending in the axial direction at intervals in the circumferential direction. The protruding portion 12 is directly formed by a part of the prepreg constituting the main rod 1, as will be described later in detail. Also, as shown in detail in FIG.
The height of the protruding portion 12 gradually increases from the tip side to the rod base side. The inner peripheral surface 12a of the protruding portion 12 is parallel to the axial centerline of the original rod 1 in the axial direction.

The butt plug 3 is a plug member which is detachably screwed and mounted on the female screw portion 11 of the original rod 1. The butt plug 3 has a disk-shaped main body 31 made of synthetic resin and a front end of the main body 31. Body 3
A male screw part 32 having a diameter slightly smaller than 1 and integrally formed with a thread on the outer periphery; and an average inner diameter of the protrusion 12 of the original rod 1 having a diameter slightly smaller than the male screw part 32 on the tip side of the male screw part 32. And a fitting male portion 33 having an outer diameter substantially equal to The fitting male portion 33 is made of an elastic material such as styrene rubber, butadiene rubber, silicon rubber, and polyurethane rubber.

The original rod 1 is manufactured as follows. As shown in FIGS. 4 to 6, a core material 50 having a tapered cylindrical main body 51 whose diameter decreases toward the tip side.
Prepare A plurality of concave grooves 5 extending in the axial direction at intervals in the circumferential direction are formed on a predetermined circumferential surface on the rod base side of the main body portion 51.
2 are formed. The concave groove 52 is formed so as to be shallower toward the tip and gradually deeper toward the rod base. A release material is applied to the peripheral surface of the core material 51 as necessary, and a sheet-shaped prepreg P in which a thermosetting resin is impregnated into carbon fibers or glass fibers aligned in one direction is wound while applying pressure. I do. The prepreg P is formed by arbitrarily winding several types. Thereafter, the protective tape is spirally wound while applying pressure to the outer periphery of the prepreg P. At this stage, the pressurized prepreg P synthetic resin enters the concave groove 52 of the core material 50 to form the projection 12. Thereafter, they are fired. Then, the core material 50 is pulled out and both ends are cut into appropriate lengths and subjected to a surface treatment to manufacture the original rod 2 having the protrusions 12 on a predetermined inner peripheral surface on the rod base side.

In the original rod 1 configured as described above, the butt plug 3
Is attached to the original rod 1, the fitting part 33 of the buttocks 3 is inserted into the original rod 1 from the original side of the original rod 1, and the protrusion 33 is formed on the inner peripheral surface of the original original rod 1 on the original side of the original rod 1. The male screw portion 32 is screwed and fixed to the female screw portion 11 while being fitted and fixed. By fitting the elastic fitting portion 33 to the protruding portion 12, it is not necessary to finely adjust the diameter of the fitting portion, and the manufacturing becomes easy. Further, since the entire peripheral surface of the fitting portion 33 is not fitted to the protruding portion 12, unnecessary fixation can be prevented, and a reduction in fitting force can be suppressed even if fitting is repeated.

In adopting the above manufacturing method, the protruding portion 12 is formed by the concave groove 52 of the core material 50, and gradually protrudes in the inner circumferential direction from the tip side to the rod base side. Since the core material 50 is formed parallel to the center line in the axial direction, the core material 50 having the tapered taper can be easily pulled and pulled in the direction toward the base of the rod after firing. [Other Embodiments] (a) In the above-described embodiment, screwing of the female screw portion 11 and the male screw portion 32 is used in combination for fixing the buttocks plug 3 and the original rod 1, but as shown in FIG. It is also possible to fix the rod 1 and the tail plug 3 only by fitting the fitting part 33 and the protruding part 12 without providing the female screw part 11 and the male screw part 32 respectively. (B) The number of protruding portions is arbitrary, and only one may be provided on the inner peripheral surface on the rod base side of the former rod 1, or a plurality of protrusions may be provided at intervals in the circumferential direction.

[0018]

According to the rods of the present invention, it is possible to sufficiently maintain the fitting force with the buttocks for a long period of time without sticking to each other.

[Brief description of the drawings]

FIG. 1 is an overall view of a through rod adopting an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a rod base side of the rod 1 of FIG.

FIG. 3 is a sectional view of a rod base side of the rod 1 of FIG. 1;

FIG. 4 is an enlarged view of a core material on a rod base side.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a view showing a manufacturing process of the original rod 1.

FIG. 7 is a diagram showing a rod end side end view of a former rod 1 employing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Former rod 2 Former upper rod 3 Butt plug 12 Projection part 50 Core material 51 Main part 52 Groove P Prepreg

Claims (3)

[Claims] 1. A rod body constituting a fishing rod used for fishing, comprising: a cylindrical main body having a tapered taper; and an inner peripheral surface formed integrally with the main body on a rod base side inner peripheral surface of the main body. A projecting portion that gradually projects in the inner circumferential direction from the tip side to the rod base side, and whose inner circumferential surface is formed in parallel with the axial center line of the main body portion, and that is detachable from the rod base side of the main body portion And a butt plug having a fitting portion having elasticity capable of being fitted to the protruding portion. 2. The rod body according to claim 1, wherein the projecting portion is formed to extend in the axial direction at intervals in the circumferential direction. 3. The system according to claim 1, wherein the main body has a diameter-enlarging portion on the pole base side, the taper being larger than other portions, and the projecting portion is formed on an inner peripheral surface of the diameter-enlarging portion. 3. The rod according to 2.