JP2000139278A - Inner through rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner through rod capable of smoothly sliding a fishing line without reducing the sliding resistance caused by accumulated water in the passage of the fishing line. SOLUTION: This inner through rod is provided by forming a fishing line passage 10 at the inside of its rod body 1. At the inner circumferential surface of the fishing line passage 10, plural fishing line-supporting projections 11 arranged by taking intervals in a shaft direction of the rod body 1 and so as to become non-continuous in its circumferential direction. The plural fishing line-supporting projections 11 are arranged on the inner circumferential surface of the fishing line passage 10 successively as a spiral state. Notches 11a are formed over one round in the circumferential direction of the fishing line passage 10 by cutting off the part of the projections in the circumferential direction. Further, each notch 11a of the fishing line-supporting projections 11 being adjacent to each other in the shaft direction is formed so as not to overlap each other on viewing the fishing line passage 10 from the shaft direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing rod having a fishing line passage through which a fishing line can be inserted.

[0002]

2. Description of the Related Art A through rod has a cylindrical rod body having a fishing line passage therein, and a fishing line introduction hole provided on an outer peripheral surface of the rod body for introducing a fishing line into the fishing line passage. In this center rod, the fishing line from the reel is introduced into the fishing line passage from the fishing line introduction hole, and is led out from the tip side of the rod body. The fishing line passes through a fishing line passage provided inside the rod body when the fishing line is fed or wound.

When the fishing line passes through the fishing line passage, sliding resistance occurs between the inner peripheral surface of the fishing line passage and the fishing line, so that the fishing line may not be smoothly fed or wound.
In order to reduce the sliding resistance, there is known a fishing rod in which a projection is formed in a spiral shape on the inner peripheral surface of a fishing line passage and the projection supports the fishing line. By forming the projections in this manner, the contact area between the fishing line and the inner peripheral surface of the fishing line passage is reduced, and the sliding resistance between the inner peripheral surface of the fishing line passage and the fishing line is reduced.

[0004]

In the conventional through rod,
Water may accumulate in the fishing line passage, and this water may make the fishing line slippery. This is because, when the fishing line passes through the fishing line passage, water droplets attached to the fishing line accumulate between the projections formed in a spiral shape in the fishing line passage, and the accumulated water comes into contact with the fishing line and becomes This hinders sliding.

It is an object of the present invention to provide a fishing rod in which a fishing line can slide smoothly without reducing the sliding resistance of the fishing line due to water accumulated in a fishing line passage.

[0006]

A through rod according to a first aspect of the present invention is a through rod through which a fishing line from a reel can be inserted, and a cylindrical rod having a fishing line passage through which a fishing line can be inserted. And a plurality of fishing line support protrusions which are arranged on the inner peripheral surface of the fishing line passage of the rod body at intervals in the axial direction of the rod body and have notches so as to be discontinuous in the circumferential direction. .

In this case, the plurality of fishing line support projections formed on the inner peripheral surface of the fishing line passage support the fishing line passing through the fishing line passage to reduce the contact area between the fishing line and the rod body. Here, the fishing line support projection is partially notched and is discontinuous in the circumferential direction of the rod body. For this reason, even if the fishing line to which water droplets have adhered passes through the fishing line passage and water accumulates in the axial space between the fishing line supporting protrusion and the other fishing line supporting protrusion, the water flows out from the notch in the axial direction. As a result, it is possible to suppress the accumulation of water between the fishing line support projections, and to smoothly slide the fishing line in the fishing line passage.

According to a second aspect of the present invention, there is provided a through rod, wherein the plurality of fishing line support protrusions are spirally arranged.

In this case, since the plurality of fishing line support projections are spirally arranged, the water collected at the axial spacing of the fishing line support projections can easily flow in the axial direction along the spiral, and drainage can be performed more smoothly. Become.

A boring rod according to a third aspect of the present invention is the boring rod according to the first or second aspect, wherein the notches of adjacent fishing line support projections are arranged so as not to overlap with each other in the axial direction of the fishing line passage.

In this case, the notches are arranged so as not to overlap each other in the adjacent fishing line support projections in the axial direction, so that the fishing line passing through the fishing line passage in the axial direction can be separated by the axial distance between at most two fishing line support projections. Can be supported. As a result, the fishing line can be sufficiently supported by the fishing line support protrusion, and the fishing line can be smoothly slid.

A boring rod according to a fourth aspect of the present invention is a boring rod according to any of the first to third aspects, wherein a plurality of fishing line support projections are formed integrally with the rod body.

In this case, since the fishing line support projection is formed integrally with the rod body, the durability of the fishing line support projection is enhanced. In addition, bending of the rod body becomes smooth. A boring rod according to a fifth aspect of the present invention is a boring rod according to any of the first to fourth aspects, wherein the plurality of fishing line support protrusions have a trapezoidal cross section.

In this case, the fishing line support projection has a trapezoidal cross section, is excellent in mechanical strength and deformation resistance, and the durability of the fishing line support projection is further improved. Further, since the fishing line comes into contact with the upper flat surface of the trapezoidal cross section and the contact length of the fishing line is kept at an appropriate level, the stress generated at the contact location is smaller than in the case of point contact.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of the present invention will be described below with reference to the drawings. (Construction) The through rod adopting the first embodiment of the present invention is:
As shown in FIG. 1, a cylindrical rod body 1, a rod-side grip 2 attached to a rod-side end of the rod body 1, and a rod-side grip 2
A reel sheet 4 which is disposed on the tip side of the rod and to which the reel 3 can be attached, a fishing line introduction hole 5 provided on the tip side of the seal sheet 4, and a top guide 6 attached to the tip side end of the rod body 1. Have. Then, the fishing line L from the reel 3 is introduced into the rod body 1 from the fishing line introduction hole 5 and is guided to the outside from the top guide 6 on the tip side.

The rod body 1 is a tapered and cylindrical member having a small diameter at the tip end formed by winding a sheet-like prepreg obtained by impregnating a resin into carbon fiber reinforcing fibers around a mandrel. Has a fishing line passage 10 formed therein.
As shown in FIG. 2, the rod body 1 is provided on the inner peripheral surface of the fishing line passage 10.
A plurality of fishing line support projections 11 are formed at intervals in the axial direction and have notches 11a so as to be discontinuous in the circumferential direction.

The plurality of fishing line support projections 11 are
0 are sequentially arranged in a spiral shape on the inner peripheral surface. A part of the fishing line passage 10 in the circumferential direction is notched so as not to be continuous over one circumference, and a notch 11a is formed. The notches 11a of the fishing line support protrusions 11 adjacent in the axial direction are formed so as not to overlap with each other when the fishing line passage 10 is viewed in the axial direction.

Further, as shown in FIG.
Reference numeral 1 denotes a trapezoidal cross section, and both ends 11b and 11c of the upper side and the lower side of the trapezoidal cross section are curved portions, respectively. The fishing line support projection 11 is formed integrally with the rod body 1, and a large number of reinforcing fibers 20 are embedded in the rod body 1 and the fishing line support projection 11, respectively. The reinforcing fibers 20 are oriented so as to be substantially parallel to the spiral direction of the fishing line support projection 11.

The rod grip 2 is a cylindrical elastic member with a lid fitted to the rod-side end of the rod body 1. For example, it is formed of a rubber member such as natural rubber, butadiene rubber, polyurethane rubber or the like, or a porous material such as cork material. The reel sheet 4 is a pipe-shaped member made of synthetic resin or metal, and is fixed to a predetermined position of the rod body 1 by injection molding or the like.

(Manufacturing method) The rod 1 is formed as follows.

As shown in FIG. 4C, first, a releasing agent P such as wax is applied as necessary to the outer periphery of the mandrel 100 which is a rod-shaped member having a tapered taper.
A release tape 110 made of polypropylene or the like is wound around the outer peripheral surface of the release agent P, and a step filling tape 120 for filling a gap between the molding tape 111 for forming the fishing line support protrusion 11 and the molding tape 111 is wound around the outer periphery. Turn. That is, as shown in FIG. 4A and FIG.
A step embedding tape 120 in which a portion forming 1 is cut out is wound around the mandrel 100, and a molding tape 111 is wound around a portion where the fishing line support protrusion 11 is formed. This molding tape 11
Reference numeral 1 denotes a trapezoidal section in which a prepreg sheet, which will be described in detail later, is molded into a tape shape, and the reinforcing fibers 20 are oriented in a direction coinciding with the spiral direction (see FIG. 3).

Subsequently, a plurality of prepreg tapes 121 to 124 are sequentially wound around the outer peripheral surfaces of the molding tape 111 and the stepping tape 120 while applying pressure. These prepreg tapes are formed by thinning a sheet-shaped prepreg obtained by impregnating reinforcing fibers such as carbon fiber, glass fiber, and Tyranno fiber with a synthetic resin. Here, the innermost first prepreg tape 121 is formed using a tape in which the reinforcing fibers 20 are oriented in the length direction of the tape, and substantially coincides with the spiral direction of the formed fishing line support projection 11. The reinforcing fibers are oriented in such a manner. In addition, the second prepreg tape 122 to the fourth prepreg tape 124 are formed using reinforcing fibers oriented in the width direction of the tape, and the reinforcing fibers are oriented in the axial direction of the mandrel 100.

After the prepreg tapes 121 to 124 of four layers (a plurality of prepregs may be further wound if necessary) are wound in this way, a protective tape made of polyethylene terephthalate or polypropylene is further wound around the prepreg tapes. (Not shown) is wound under strong pressure to produce a rod material.

After the rod material thus obtained is fired, the mandrel 100 is extracted, and the release tape 110,
The stepping tape 120 and the like are sequentially peeled. Then, both ends are cut to a desired length, the surface is polished smoothly, and the necessary coating is applied to manufacture the predetermined rod body 1.

In the fishing rod configured as described above, the plurality of fishing line support protrusions 11 formed on the inner peripheral surface of the fishing line passage 10 are
The contact area between the fishing line L and the rod body 1 is reduced by supporting the fishing line L passing through the fishing line passage 10. This fishing line support projection 1
1 is partially formed with a notch 11a,
Are discontinuous in the circumferential direction. For this reason, when the fishing line L to which water droplets have adhered passes through the fishing line passage 10 and water accumulates in the axial space between the fishing line supporting protrusion 11 and the other fishing line supporting protrusion 11, the water flows in the axial direction from the notch 11a. Run out. As a result, water does not collect between the fishing line support protrusions 11, and the fishing line L can be smoothly slid. The notch 11a does not overlap between the fishing line support protrusions 11 adjacent in the axial direction when viewed in the axial direction.
As shown in the figure, the fishing line L can be supported at a maximum in the axial distance S between two fishing line support projections.

Further, since the fishing line support projection 11 is formed integrally with the rod 1, the durability is excellent and the rod flexes smoothly. Further, the fishing line support projection 11 has a trapezoidal cross section, and is excellent in mechanical strength and deformation resistance, and further excellent in durability. Furthermore, since the fishing line comes into contact with the upper flat surface of the trapezoidal cross-section and the contact length of the fishing line is kept at an appropriate level, the stress generated at the contact point is smaller than in the case of point contact. [Second Embodiment] Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

A fishing rod employing the second embodiment of the present invention
It has the same configuration as the first embodiment. The rod body 1 of this fishing rod is formed as follows. First, similarly to the first embodiment, a release agent P such as wax is applied as necessary to the outer periphery of the mandrel 100 which is a rod-shaped member having a tapered taper. As shown in FIG. 5, the release agent P
Release tape 110 made of polypropylene or the like on the outer peripheral surface
And a forming tape 111 for forming the fishing line support protrusion 11 on the outer periphery thereof is wound at a predetermined interval in the axial direction and is discontinuous in the circumferential direction. This molding tape 111 has a trapezoidal cross section in which a prepreg sheet is molded into a tape shape as in the first embodiment, and the reinforcing fibers 20 are oriented in a direction coinciding with the spiral direction (see FIG. 3).

Subsequently, a plurality of prepreg tapes 121 to 124 are sequentially wound around the outer peripheral surface of the molding tape 111 while applying pressure. After winding the four-layer prepreg tapes 121 to 124 in this way, a protective tape (not shown) made of polyethylene terephthalate or polypropylene is further wound around the outer circumference thereof while applying strong pressure to produce a rod material. . After firing the rod material thus obtained, the mandrel 100 is pulled out and the release tape 110
Etc. are sequentially peeled off. Then, cut both ends to the desired length, smooth the surface and apply the necessary coating,
A predetermined rod body 1 is manufactured.

The fishing rod configured as described above has the same functions and effects as the first embodiment. [Other Embodiments] (a) The fishing line support projection is not limited to one that is spirally arranged on the inner peripheral surface of the fishing line passage of the rod body. For example, as shown in FIG. 6, a fishing line support protrusion 61 may be formed on the inner peripheral surface of the fishing line passage 10 of the rod body 1 in a circular shape. (B) The fishing line support projection is not limited to a trapezoidal cross section. For example, a semicircular cross section or a triangular cross section may be used. (C) It is not necessary to dispose the reinforcing fiber on the fishing line support projection. (D) The plurality of fishing line support protrusions need not be arranged at equal intervals in the axial direction. The interval between the fishing line support protrusions may be partially changed according to the inner diameter of the rod body. In addition, the portions of the fishing line support projections having a wide interval in the axial direction and the portions having a narrow interval may be alternately arranged. (E) The notches of the fishing line support protrusions adjacent in the axial direction need not be arranged so as not to overlap in the axial direction. (F) A plurality of notches in the fishing line support projection may be provided in the circumferential direction.

[0030]

According to the present invention, water accumulated between the fishing line support projections in the fishing line passage can be easily drained.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of the rod shown in FIG. 1;

FIG. 3 is an enlarged view of the vicinity of a fishing line support protrusion of FIG. 2;

FIG. 4 is a diagram showing a manufacturing process of the through rod adopting the first embodiment of the present invention.

FIG. 5 is a diagram showing a manufacturing process of a through rod adopting a second embodiment of the present invention.

FIG. 6 is a sectional view of a rod body of a through rod adopting another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod body 2 Rod base grip 3 Reel 4 Reel sheet 10 Fishing line passage 11, 61 Fishing line support projection 11a, 61a Notch 100 Mandrel 110 Release tape 111 Molding tape 120 Step embedding tape 121-124 Prepreg tape

Claims (5)

[Claims] 1. A boring rod through which a fishing line from a reel can be inserted. A cylindrical rod body having a fishing line passage therein through which a fishing line can be inserted, and an inner peripheral surface of a fishing line passage of the rod body. And a plurality of fishing line support protrusions which are arranged at intervals in the axial direction of the rod body and have cutouts so as to be discontinuous in the circumferential direction. 2. The through rod according to claim 1, wherein said plurality of fishing line support projections are spirally arranged. 3. The fishing rod according to claim 1, wherein the notches of the fishing line support projections adjacent to each other in the axial direction of the rod body are arranged so as not to overlap with each other in the axial direction of the fishing line passage. . 4. The through rod according to claim 1, wherein each of said plurality of fishing line support projections is formed integrally with a rod body. 5. The through rod according to claim 1, wherein said plurality of fishing line support projections have a trapezoidal cross section.