JP2004305113A - Fishing rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fishing rod comprising a plurality of rod bodies joined together, thus affording good flexibility. <P>SOLUTION: The fishing rod comprises a main rod 1 having an engagement female part 1a in a given range in the axial direction of the end of an ear tip side and a main upper rod 2 having an engagement male part 2 engageable on the female part 1a in a given range in the axial direction of the end of a rod foot side. The main rod 1 has a main layer 10 formed of a prepreg with axially oriented reinforcing fibers and an auxiliary layer 11 formed of prepregs with circumferentially oriented reinforcing fibers laminated on on the outer circumference of the main layer 10 in a given range in the axial direction of the end of the ear tip side where the engagement female part 1a is formed; wherein the main layer 10 is thinner than the other portions thereof in the above range. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fishing rod formed by connecting a plurality of rod bodies.
[0002]
[Prior art]
In recent years, many fishing rods are provided with a plurality of rods that are cylindrical bodies tapered and tapered, and these rods are connected to form one fishing rod. For example, in the case of the swing-out type, when the small-diameter rod body located on the tip side is sequentially housed inside the large-diameter rod body located on the pole base side, and the small-diameter rod body is pulled out on the tip side. The outer periphery of the rod-side end of the small-diameter rod and the inner periphery of the tip-side end of the large-diameter rod are fitted to the small-diameter rod.
[0003]
In such a part for connecting the rod bodies, it is required that the diameters of both rod bodies are precisely matched. However, when the rod bodies are repeatedly fitted to each other, the rod bodies may be worn out, and may be deformed and bent due to a stress load when used as a fishing rod. Therefore, from the past, for a portion for connecting such rod bodies to each other, for example, a technique of laminating a prepreg using a special polyester fiber in an auxiliary manner (for example, see Patent Document 1), and a reinforcing fiber A technique of laminating prepregs inclined with respect to a direction (for example, see Patent Document 2) has been proposed.
[0004]
[Patent Document 1]
JP-A-2002-101790 [0005]
[Patent Document 2]
JP-A-2002-17209
[Problems to be solved by the invention]
One of the problems in connecting such fishing rods is that the two rods naturally overlap at the part where the rods are connected. Generally, a rod body is formed by laminating prepregs in which reinforcing fibers are aligned in the axial direction of the rod body in order to secure bending rigidity in the axial direction. For this reason, in the part where two rod bodies overlap to connect the rod bodies, the amount of the reinforcing fibers aligned in the axial direction is doubled as compared with other parts.
[0007]
With reference to FIG. 4, an example will be described in which the former upper rod 51 is connected to the tip side of the former rod 50 in a swing-out manner.
The former rod 50 has an axial layer 50a made of a prepreg in which reinforcing fibers are oriented in the axial direction, and the former rod 51 also has an axial layer 51a made of prepreg in which reinforcing fibers are oriented in the axial direction (former rod). In order to fit the upper rod 50 and the upper rod 51, the rod-side end of the upper rod 51 is partially thickened and has a large diameter. The auxiliary layer 51b is also laminated on the rod-side end.) When the former rod 50 and the former upper rod 51 are connected to each other, an axial layer 50a and an axial layer 51a exist in a range where the rod bodies overlap each other (X range in FIG. 4). The directional fibers double as compared to the other parts. Such doubling of the axial fibers partially increases the axial bending stiffness and impairs the continuous bending of the entire fishing rod.
[0008]
An object of the present invention is to provide a fishing rod capable of producing a good bend.
[0009]
[Means for Solving the Problems]
A fishing rod according to the present invention is a fishing rod formed by connecting a plurality of rod bodies, wherein a first rod body having a fitting female portion in a certain range in the axial direction of a tip side end, and a rod base side end. A second rod having a fitting male portion that can be fitted to the fitting female portion in a certain range in the axial direction. The first rod body has a main layer formed of a prepreg in which reinforcing fibers are oriented in the axial direction, and an outer periphery of the main layer in a certain axial range of an end on the tip side where the fitting female portion is formed. And an auxiliary layer formed from a prepreg in which reinforcing fibers are oriented in the circumferential direction to be laminated. The main layer is thinner than other parts in a certain axial range of the tip end on which the fitting female part is formed.
[0010]
Further, the second rod body has a main layer formed of a prepreg in which reinforcing fibers are oriented in the axial direction, and a main layer formed within a certain axial range of the rod base end portion where the fitting male portion is formed. And an auxiliary layer formed from a prepreg in which reinforcing fibers are oriented in the circumferential direction and laminated on the outer periphery. The main layer is thinner than other portions in a certain range in the axial direction of the rod base end where the fitting male portion is formed.
[0011]
In such a fishing rod, the first rod body and the second rod body are interconnected by fitting the fitted female part to the fitted male part. When the first rod body and the second rod body are connected, the mating male part and the mating female part each have a thin main layer containing axial fibers, and the amount of axial fibers is partially reduced. Without increasing, the partial axial bending stiffness is not unduly increased. And the continuous bending of the whole fishing rod is not spoiled.
[0012]
Further, in another fishing rod according to the present invention, the main layer of the first rod body has a two-minute distance compared to the other part in a certain axial range of the tip side end where the fitted female part is formed. The thickness of the main layer of the second rod body is half the thickness of the other part in a certain axial range of the rod base end where the fitting male part is formed. That's it.
In this fishing rod, in the fitting male part and the fitting female part where the first rod body and the second rod body overlap, the main layer of each rod body is half of the other part. Accordingly, the amount of the main layer (that is, the amount of the axial fibers) is maintained as in the other portions by the fitting male portion and the fitting female portion overlapping each other. The bending rigidity in the axial direction with the other parts does not increase unduly. And the continuous bending of the whole fishing rod is not spoiled.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a fishing rod employing one embodiment of the present invention has a former rod 1 and a former upper rod 2, a middle rod 3, and a front rod 4 connected to the tip side of the former rod 1 sequentially in a swinging manner. Have been. Each rod body is a tapered tapered cylindrical member made of a prepreg material in which carbon fiber or glass fiber is impregnated with a synthetic resin.
[0014]
A reel sheet 5 to which the reel R can be detachably attached is provided on a peripheral surface of the original rod 1 on the rod base side, and a tail plug 6 is detachably mounted on an end of the rod base side. A fishing line introduction port 7 for introducing the fishing line from the reel R into the rod body is formed on the peripheral surface on the tip side of the reel sheet 5, and the fishing line is supplied to the fishing line introduction port 7 on the peripheral surface near the fishing line introduction port 7. A fishing line introduction guide 8 for guiding is attached. On the other hand, the inside of the former upper rod 2 to the tip rod 4 is a fishing line passage for the fishing line L to pass therethrough, and supports the fishing line as necessary to reduce the contact area with the inner peripheral surface to reduce the contact area with the inner peripheral surface. A projection is formed integrally with each rod body. A top guide 9 is connected to the tip end of the tip rod 4, and the fishing line L from the reel R is introduced into the rod body from the fishing line introduction port 7 via the fishing line introduction guide 9, and is sequentially guided to the tip side. , From the top guide 9 to the outside.
[0015]
A predetermined fitting male portion and a fitting female portion are formed on each of the rods 1 to 4 to connect the rods to each other. By doing so, each rod body is connected and fixed. Hereinafter, the connecting portion will be described with reference to the former rod 1 and the former upper rod 2 as an example.
As shown in FIG. 2, in the former rod 1 and the former upper rod 2, the inner peripheral surface of the tip end side of the former rod 1 is a fitting female part 1 a, and the rod former side end of the former rod 2. The outer peripheral surface is a fitting male part 2a. The inner diameter and the outer diameter are adjusted so as to match.
[0016]
The main rod 1 is a cylindrical member having a tapered taper as a whole as described above. In the fitting female portion 1a which is a fixed range in the axial direction of the end on the tip side, the main rod 1 is formed so as to expand toward the outer peripheral surface side. It is thickened. Although the axial length of the fitting female portion 1a varies depending on the diameter of the rod body, it is generally preferable to set the axial length to about 3 to 4 times the diameter of the rod body. The main rod 1 is composed of a main layer 10 formed of a prepreg in which reinforcing fibers are oriented in the axial direction of the main rod 1 and a fixed axial direction of an end portion on the tip side where the fitted female portion 1a is formed. This is a structure in which an auxiliary layer 11 formed of a prepreg in which reinforcing fibers are oriented in the circumferential direction, which is laminated on the outer periphery of the main layer 10 in the range, is laminated and integrated. Although the main layer 10 and the auxiliary layer 11 are shown separately for reference in FIG. 2, they are fired and integrated as described later.
[0017]
The main layer 10 of the original rod 1 is thinner than other parts in a certain range of the tip side end part to be the fitting female part 1a. Specifically, it is preferable that the thickness of the main layer 10 in the fitting female portion 1a is set to be half the thickness of the other portions. On the other hand, the auxiliary layer 11 is a portion which is disposed in place of the main layer 10 in order to maintain the strength of the original rod 1 in the fitting female portion 1a where the main layer 10 is thinned.
[0018]
In this embodiment, the auxiliary layer 11 is laminated on the fitting female portion 1a, and the fitting female portion 1a is thickened so as to bulge toward the outer peripheral surface side from other portions. It is also possible to laminate the auxiliary layer 11 so that the diameter of the fitting female portion 1a is the same as that of the other portions.
As shown in FIG. 2, similarly to the original rod 1, the former upper rod 2 is a cylindrical member tapered as a whole. The former rod 2 is connected to the former rod 1 in a swinging manner, and can be inserted into the former rod 1 from the tip side and stored. The outer diameter of the fitting male portion 2a, which is a certain range in the axial direction of the rod base end portion of the upper rod 2, is increased so that its outer diameter expands toward the outer peripheral surface side. In addition, the former upper rod 2 also has a main layer 20 formed of a prepreg in which reinforcing fibers are oriented in the axial direction of the former upper rod 2, and an axial direction of a tip side end portion where the fitting male portion 2a is formed. This is a structure in which an auxiliary layer 21 formed of a prepreg in which reinforcing fibers are oriented in the circumferential direction, which is laminated on the outer periphery of the main layer 20 in a certain range, is laminated and integrated.
[0019]
The main layer 20 of the former upper rod 2 is thinner than other parts in a certain range of the rod-side end portion to be the fitting male part 2a. Specifically, in the same manner as in the case of the above-described original rod 1, the thickness of the main layer 20 is set to be half the thickness of the other portions in the fitting female portion 2a. Is preferred.
Here, the description is given for the former rod 1 and the former rod 2, but the fitting portions of other rod bodies have the same structure.
[0020]
Next, a method of manufacturing the rod body constituting the fishing rod according to the present embodiment will be described by taking the original rod 1 as an example.
As shown in FIG. 3A, first, a mandrel (core material) 100 having a predetermined taper is prepared. Further, a release agent is applied to the peripheral surface of the mandrel 100 as needed. Then, the first prepreg P1 is wound around the outer peripheral surface of the mandrel 100 by one ply or several plies. The first prepreg P1 is one in which reinforcing fibers such as carbon fibers are aligned and oriented in the axial direction and impregnated with a synthetic resin. The axial length of the first prepreg P1 is set so as to have the entire length of the original rod 1 in the axial direction.
[0021]
Next, as shown in FIG. 3B, the second prepreg P2 is further wound around the outer peripheral surface of the first prepreg P1. The second prepreg P2 is also one in which reinforcing fibers such as carbon fibers are aligned and oriented in the axial direction and impregnated with a synthetic resin. The axial length of the second prepreg P2 is set to be shorter than the entire axial length of the original rod 1. Specifically, the second prepreg P2 has an axial length shorter than the first prepreg P2 by the axial length of the fitted female portion 1a. The second prepreg P2 is wound around the outer periphery of the first prepreg P1 so that the base side is aligned with the first prepreg P1 so as to form a part that is not wound on the tip side. The number of turns of the second prepreg P2 is set to be the same as the number of turns of the first prepreg P1. The first prepreg P1 and the second prepreg P2 constitute the main layer 10. By winding the first prepreg P1 and the second prepreg P2 by the same number of plies, the thickness of the main layer 10 is reduced. The portion which becomes the fitting female portion 1a has a half thickness.
[0022]
At this time, the number of windings of the first prepreg P1 and the second prepreg P2 is an integer number of times at least at the tip end side edge (for example, such that the wall thickness does not change in the circumferential direction such as one round or several rounds). Preferably, it is wound evenly).
Subsequently, as shown in FIG. 3C, the third prepreg P3 is wound around the tip side where the second prepreg P2 is not wound. The third prepreg P3 is made by impregnating a synthetic resin after reinforcing fibers are aligned in the circumferential direction of the rod body, and forms the auxiliary layer 11. The third prepreg P3 is wound by several plies. As shown in FIG. 2, the third prepreg P3 for forming the auxiliary layer 11 is wound thicker than the second prepreg P2.
[0023]
Further, a molding tape such as polypropylene is spirally wound around the outer periphery of each of these prepregs while applying pressure without any gap, and is fired in a furnace. After firing, the molding tape is peeled off, the mandrel 100 is pulled out, the both ends are cut and adjusted to a predetermined axial length, the peripheral surface is polished and smoothed, and the peripheral surface is painted to manufacture the original rod 1.
It should be noted that each of the rods other than the original rod 1 can be manufactured by the same manufacturing method. For example, in a rod body such as the former upper rod 2 in which a fitting female part is formed at the tip end and a fitting male part is formed at the rod end, the second prepreg P2 is connected to the tip side and the rod side. Is wound so as to form a gap at both ends.
[0024]
In such a fishing rod, for example, in the former rod 1 and the former rod 2, the fitting female part 1a is fitted to the fitting male part 2a of the former rod 2, so that the former rod 2 becomes the former rod. When it is pulled out to the tip side of 1, the former upper rod 2 and the former rod 1 are mutually connected and fixed. The male layer 2a and the female section 1a of the main layer 10 including the axial fibers are each made thinner, in particular, halved in comparison with the other parts, and the amount of the axial fibers is reduced. It is equivalent to other parts without increasing partially. The circumferential fibers of the auxiliary layer 11 do not greatly contribute to the axial bending rigidity of the fishing rod or the rod body. Therefore, the partial axial rigidity does not increase unduly. If the same structure is used in the connecting portion between the other rods, the continuous bending of the entire fishing rod will not be spoiled.
[0025]
In the above embodiment, the case where the respective rod bodies are connected in the swing-out form is illustrated, but the present invention is also applicable to a joint type fishing rod.
[0026]
【The invention's effect】
The fishing rod according to the present invention can produce good bending.
[Brief description of the drawings]
FIG. 1 is an overall view of a fishing rod employing one embodiment of the present invention.
FIG. 2 is a view showing a connecting portion between a former rod 1 and a former upper rod 2 of the fishing rod of FIG. 1;
FIG. 3 is a view showing a manufacturing process of the original rod 1.
FIG. 4 is a view showing a connecting portion between rod bodies of a conventional fishing rod.
[Explanation of symbols]
1 Former rod 1a Fitting female part 2 Former upper rod 2a Fitting male part 10,20 Main layer 22,21 Auxiliary layer P1 First prepreg P2 Second prepreg P3 Third prepreg

Claims (2)

A fishing rod formed by connecting a plurality of rod bodies,
A first rod body having a fitting female portion in a certain axial range of the tip end, and a fitting male capable of fitting to the fitting female portion in a certain axial range of the rod-side end portion; A second rod body having a portion,
The first rod body includes a main layer formed of a prepreg in which reinforcing fibers are oriented in an axial direction, and a main layer formed in a certain range in an axial direction of a tip side end portion where the fitting female portion is formed. An auxiliary layer formed of a prepreg in which reinforcing fibers are oriented in the circumferential direction laminated on the outer periphery, and the main layer is formed in a predetermined range in the axial direction of the tip end side end where the fitting female portion is formed. Is thinner than other parts,
The second rod body includes a main layer formed of a prepreg in which reinforcing fibers are oriented in an axial direction, and a main layer formed in a predetermined range in an axial direction of a rod base end portion where the fitting male portion is formed. An auxiliary layer formed of a prepreg in which reinforcing fibers are oriented in the circumferential direction laminated on the outer periphery of the rod, and a certain range in the axial direction of the rod base end portion where the fitting male portion is formed. The main layer is a fishing rod that is thinner than other parts. In a certain range in the axial direction of the tip side end portion where the fitting female portion is formed, the main layer of the first rod body is half the thickness of the other portion,
The main layer of the second rod body has a thickness of one half as compared with other parts in a certain axial range of the rod base end where the fitting male part is formed. Item 10. The fishing rod according to item 1.

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