JP2004305112A - Connection structure of rod body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting structure of rod bodies, capable of keeping a fitting force over a long period. <P>SOLUTION: The first part 1b and the second part 1c of the tip side thereof are formed at the tip side of a body part 1a of a butt rod 1. The first part 1b has a taper reducing the diameter to the tip side sharper than that of the body part 1a, and the second part 1c has no change in the diameter in the axis direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a connection structure between rods constituting a fishing rod in which a plurality of rods are connected in a so-called swing-out manner. More specifically, in two specific rod bodies, one of them can be connected and fixed to each other in either the housed state in which one is housed in the other, or the extended state in which one is drawn out to the other end side. Regarding the structure.
[0002]
[Prior art]
In the conventional fishing rod of the swing-out type, a plurality of cylindrical rod bodies can be inserted into the rod body on the rod base side sequentially from the rod body on the tip side. When fishing, each rod body is sequentially pulled out to the tip side, fitted and fixed, and used as one rod body. On the other hand, at the time of storage, the rod body on the tip side is sequentially stored in the rod body on the rod base side to make it compact.
[0003]
Also, there is a conventional fishing rod of the draw-out type that is designed so that fishing can be performed by changing the length of the entire rod. The fishing rod devised in this manner is, for example, a base rod having a female part fitted on the inner peripheral surface of the tip end side, and a first fitting male part on the outer peripheral surface of the rod base end part, while being near the center in the longitudinal direction. And a former pole having a second fitting male part on the outer peripheral surface of the main body (see, for example, Patent Document 1).
[0004]
In this type of fishing rod, in a state in which the former upper rod connected to the tip side of the former rod is pulled out to the tip side (hereinafter referred to as “stretched state”), the fitting female part is referred to as the first fitting male part. In a state in which the original upper rod is inserted into the former rod (hereinafter referred to as a "housed state"), the female female part can be fitted with the second male male part.
In this way, the former rod and the former rod can be fitted and fixed to each other in any of the "extended state" and the "stowed state", so that fishing can be performed by changing the entire length of the fishing rod according to the situation. It has become.
[0005]
[Patent Document 1]
JP 2000-262189 A
[Problems to be solved by the invention]
In such a fishing rod, a small-diameter rod is pulled out from a large-diameter rod while in fishing, and the small-diameter rod is extended into a large-diameter rod. The operation of storing in the rod body to make the storage state is repeated. For this reason, the number of times of fitting of the fitting portions of both rod bodies is also large, and the fitting portions are easily worn.
[0007]
Wear of the mating part causes a problem that the small-diameter rod body accidentally jumps out of the large-diameter rod body during fishing, and furthermore, the small-diameter rod body becomes large-diameter rod. There is also a risk of falling off from the body toward the tip. Also, even if such protrusion does not occur, the wear of the fitting portion changes the fitting state of the rod bodies, and the small-diameter rod body which should be originally invisible when the rod bodies are fitted together. There is a possibility that the fitting male portion may appear in appearance.
[0008]
An object of the present invention is to provide a rod connection structure capable of maintaining a good degree of fitting between a large-diameter rod and a small-diameter rod for a long period of time.
[0009]
[Means for Solving the Problems]
The connecting structure of the present invention is a connecting structure of a rod body in which a small-diameter rod body is connected in a projecting manner so as to be housed inside a large-diameter rod body, and the large-diameter rod body has a tapered tapered main body. A first portion formed on the tip side of the main body portion and having an inner peripheral surface serving as a first fitting female portion; and a first portion formed on the tip side of the first portion and having an inner peripheral surface serving as a second fitting female portion. A second portion having an inner diameter smaller than the inner diameter of the first portion. The small-diameter rod body has a first fitting male portion fitted to a first fitting female portion formed on an outer peripheral surface of a rod base end portion, and a second fitting female portion formed on a peripheral surface on a tip side. A second fitting male part fitted or abutted on the part.
[0010]
In the rod body adopting this connection structure, according to the following two embodiments, in the extended state in which the small-diameter rod body is pulled out to the tip side of the large-diameter rod body, or in the stored state in which the small-diameter rod body is stored in the large-diameter rod body. Can also be connected and fixed by fitting each other.
In the extended state in which the small-diameter rod is pulled out from the large-diameter rod, the first fitting male part at the rod-side end of the small-diameter rod is the first fitting female part on the tip side of the large-diameter rod. To fit. Even if these parts wear due to repeated fitting, there is a second part smaller in diameter than the first part on the tip side of the first part where the first fitting female part is formed, and the small diameter rod body is It will not come off the tip side. Further, in this extended state, the first fitting male portion of the small-diameter rod does not appear in the appearance.
[0011]
When the small-diameter rod is housed in the large-diameter rod, the second fitting male part of the small-diameter rod fits into the second fitting female part at the tip end of the large-diameter rod. Abut. For example, when a tail plug is attached to the rod end of the large-diameter rod, and the rod end of the small-diameter rod is fitted and held in the tail plug, the second fitting male part is used. It suffices if it comes into contact with the second mating female part to the extent of preventing displacement. On the other hand, when the above-mentioned butt-plug is not attached to the end of the large-diameter rod at the base end of the rod, the second fitting male part and the second fitting female part are fitted to each other.
[0012]
In this structure, the fitting portion between the small-diameter rod and the large-diameter rod is different between the stored state and the extended state, so that the degree of wear is reduced by half even if the operation of extending and storing is repeated.
Another connecting structure is a connecting structure of a rod body in which a small-diameter rod body is connected in a swing-out manner so as to be housed inside a large-diameter rod body. The large-diameter rod body has a tapered main body portion, and a first tapered female portion formed on the spike side of the main body portion. The first portion, which corresponds to the tip end of the large-diameter rod body, has a smaller diameter on the tip side of the first portion and does not change in inner diameter within a certain range in the axial direction. And a second portion which is a female part. The small-diameter rod body includes a first fitting male portion fitted to a first fitting female portion formed on the outer peripheral surface of the rod base end portion, and a second fitting female portion formed on the tip side peripheral surface. A second fitting male portion to be fitted or abutted.
[0013]
In the rod body adopting this connection structure, according to the following two embodiments, in the extended state in which the small-diameter rod body is pulled out to the tip side of the large-diameter rod body, or in the stored state in which the small-diameter rod body is stored in the large-diameter rod body. Can also be connected and fixed by fitting each other.
In the extended state in which the small-diameter rod is pulled out from the large-diameter rod, the first fitting male part at the rod-side end of the small-diameter rod is the first fitting female part on the tip side of the large-diameter rod. To fit. Even if these parts are worn due to repeated fitting, the first fitting female part has a second part with a smaller diameter on the tip side of the first fitting female part, and the small diameter rod body does not come off to the tip side. Further, in this extended state, the first fitting male portion of the small-diameter rod does not appear in the appearance.
[0014]
When the small-diameter rod is housed in the large-diameter rod, the second fitting male part of the small-diameter rod fits into the second fitting female part at the tip end of the large-diameter rod. Abut. Since the portion where the small-diameter rod and the large-diameter rod are fitted is different between the stored state and the extended state, the degree of wear is reduced by half even if the operation of extending and storing is repeated.
Still another connecting structure is a connecting structure of a rod body in which a small-diameter rod body is connected in a projecting manner so as to be housed inside a large-diameter rod body. The large-diameter rod body has a tapered main body portion, and a first tapered female portion formed on the spike side of the main body portion. One portion and a steeply tapered portion formed on the tip side of the first portion corresponding to the tip end portion of the large diameter rod body and further tapering from the first portion, and the inner peripheral surface thereof becomes the second fitting female portion. And a second portion. The small-diameter rod body includes a first fitting male portion fitted to a first fitting female portion formed on the outer peripheral surface of the rod base end portion, and a second fitting female portion formed on the tip side peripheral surface. A second fitting male portion to be fitted.
[0015]
In the rod body adopting this connection structure, according to the following two embodiments, in the extended state in which the small-diameter rod body is pulled out to the tip side of the large-diameter rod body, or in the stored state in which the small-diameter rod body is stored in the large-diameter rod body. Can also be connected and fixed by fitting each other.
In the extended state in which the small-diameter rod is pulled out from the large-diameter rod, the first fitting male part at the rod-side end of the small-diameter rod is the first fitting female part on the tip side of the large-diameter rod. To fit. Even if these parts are worn due to repeated fitting, there is a second part on the tip side of the first fitting female part which is further tapered and has a smaller diameter toward the tip side, and the small diameter rod body comes off to the tip side. It will not be lost.
[0016]
When the small-diameter rod is stored in the large-diameter rod, the second fitting male portion of the small-diameter rod fits into the second fitting female portion at the tip end of the large-diameter rod. . Since the portion where the small-diameter rod and the large-diameter rod are fitted is different between the stored state and the extended state, the degree of wear is reduced by half even if the operation of extending and storing is repeated.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a fishing rod adopting the first embodiment of the present invention has a base rod 1 having a reel sheet 6 on a peripheral surface of which a reel (not shown) can be detachably mounted, and a base rod 1 It has a former pole 2, a first middle pole 3, a second middle pole 4, and a tip pole 5, which are sequentially connected to the tip side in a swinging-out manner. Each of the former rod 1 to the tip rod 5 is a tapered cylindrical member formed from a prepreg material in which carbon fiber or glass fiber is impregnated with a synthetic resin. These are connected in a so-called swing-out manner, and the upper rod 2 to the head rod 5 are inserted into the rod body on the rod base side sequentially from the head side and can be put in and out freely.
[0018]
When the former upper rod 2 to the tip rod 5 are pulled out to the tip side, the respective rod bodies are located at the outer peripheral surface of the rod side end of the rod body located at the tip side and the rod body located at the rod side. Are fitted to each other at the inner peripheral surface of the end portion of the spike, thereby preventing the spout from slipping off to the spike and enabling the mutual connection and fixing. In particular, the former upper rod 2 and the former rod 1 can be connected and fixed to each other in any of the extended state, the stored state, and the stored state, as described later.
[0019]
In addition, a fixed guide 9 which is arranged closest to the tip side and is fixed immovably in the axial direction on the peripheral surface of each rod body, and is movable in the axial direction on the peripheral surface on the rod base side and at a predetermined position. A plurality of slide guides 10 placed and locked so as to be placed are arranged as necessary. In this embodiment, the number of rods is five, but the number of rods is set arbitrarily and is not limited to this.
[0020]
Next, the structure of the former pole 1 and the former pole 2 will be described in detail.
As shown in FIGS. 2 and 3, the original rod 1 is a cylindrical body having a constant taper. A tail plug 7 is detachably attached to the rod base side end of the former rod 1. For example, a thread groove is formed on the inner peripheral surface of the rod end side of the rod 1, and a tail plug 7 is screwed into the groove. The buttocks 7 may be capable of accommodating the rod base end of the upper rod 2 (see FIG. 2).
[0021]
The original rod 1 has a main body portion 1a which is a tapered portion, a first portion 1b formed on the front end side of the main body portion 1a, and a front end of the first rod 1 on the front end side of the first portion. It can be divided into three parts, the second part 1c corresponding to the side end. The main body 1a is a tapered portion of about 0.3 / 1000 to 3/1000, and constitutes a main part of the original rod 1. The first portion 1b is formed to have a sharper taper than the main body 1a, and is, for example, about 2/1000 to 5/1000. This is an area formed on the tip side of the original rod 1 and having an axial length of about 30 to 150 mm. The inner peripheral surface of the first portion 1b is a first fitting female portion. The second portion 1c is formed at the tip end of the original pole 1 and has a smaller diameter with a step compared to the first portion 1b. The second portion 1c is a region having an axial length of, for example, about 1 to 5 mm, and the inner diameter is constant without changing in the axial direction range. The inner peripheral surface of the second part 1c is a second fitting female part. In the case where the above-mentioned buttocks 4 are sufficiently fitted to the rod base side end of the former upper rod 2 and a fitting holding force is produced by the buttocks 4 in the vicinity, the second fitting is performed. It is sufficient that the mating female part is of a degree of “backlash” (a degree of mutual contact), and the axial length may be about 1 to 5 mm as described above. On the other hand, when a sufficient fitting holding force is produced by the second portion 1c, it is necessary to further increase the axial length.
[0022]
The former upper rod 2 is a rod body connected to the tip side of the former rod 1, and is a tapered tapered body like the former rod 1. A first fitting male portion 2a formed one step thicker than the portion adjacent to the outer peripheral surface of the rod end side, and a larger diameter than the portion adjacent to the peripheral surface at a position slightly closer to the tip end than near the center in the axial direction. And a fitted second fitting male portion 2b. Both the first male fitting portion 2a and the second male fitting portion 2b are integrally formed with a cylindrical portion that basically constitutes the rod 2 originally. For example, the former rod 2 is manufactured by winding a carbon fiber reinforced resin (prepreg material) or the like around a core material and firing the material. At this time, a prepreg material for assistance is further partially laminated on a predetermined portion. Then, there is a method of integrally firing and thickening and increasing the diameter.
[0023]
The outer diameter of the first fitting male portion 2a is adjusted by polishing or the like so as to match the inner diameter of the first portion 1b (first fitting female portion) of the original rod 1 described above. The outer diameter of the second fitting male part 2b is adjusted by polishing or the like so as to match the inner diameter of the second part 1c (second fitting female part) of the original rod 1 described above.
The inner peripheral surfaces of the first female fitting portion and the second female fitting portion, and the outer peripheral surfaces of the first male fitting portion 2a and the second male fitting portion 2b are further made of polyester fiber or the like. It may be formed by partially laminating a nonwoven fabric prepreg obtained by impregnating a nonwoven fabric with a synthetic resin.
[0024]
In such a fishing rod, when used, each rod body is pulled out to the tip side and fitted to each other to be used as one long fishing rod. When the fishing is finished, each rod body is housed in order from the tip pole 5 to the rod base side to make it compact. Further, in the former pole 2 and the former pole 1, the extended state in which the former pole 2 is pulled out to the tip side of the former pole 1 (see FIG. 3), and In any of the storage states (see FIG. 2) stored in the original rod 1, it is also possible to perform fishing while adjusting the length of the entire fishing rod by fitting and fixing together.
[0025]
Here, as shown in FIG. 3, in the extended state in which the former upper rod 2 is pulled out from inside the former rod 1, the first fitting male portion 2 a at the rod base side end of the former upper rod 2 is The rod 1 is fitted to the first fitting female portion which is the inner peripheral surface of the first portion 1b of the inner peripheral surface on the tip side of the rod 1. Even if these parts are worn by repeated fitting, there is a second step 1c having a smaller diameter on the tip side of the first fitting female part, and the former upper rod 2 comes off the tip side of the former rod 1. Never. In general, the peripheral surface of the first fitting male portion 2a of the former upper rod 2 is not coated with a design or the like, but the first fitting male portion 2a does not appear in the appearance. .
[0026]
On the other hand, as shown in FIG. 2, in the stored state in which the former upper rod 2 is stored in the former rod 1, the second fitting male portion 2 b of the former upper rod 2 To the second fitting female portion which is the inner peripheral surface of the third portion 1c. The second fitting female portion is a portion whose diameter does not change in the axial direction, and can exert a sufficient fitting force even if the axial range of the region is relatively short. Further, as described above, the fitting portion between the former upper rod 2 and the former rod 1 is different between the stored state and the extended state, so that the degree of wear is reduced by half even if the stretching and storing operations are repeated, and the wear is reduced. The degree of occurrence is also suppressed.
[0027]
[Other embodiments]
FIG. 4 shows a modification of the above embodiment.
The former rod 11 and the former upper rod 12 of the fishing rod according to this modification can be fitted and connected and fixed to each other in any of the stored state and the extended state similarly to the above embodiment.
[0028]
Similar to the above-described embodiment, the original rod 11 includes a main body 11a which is a tapered portion, a first portion 11b formed on a front side of the main body 11a, and a front side of the first portion. There is a second part 11c corresponding to the tip of the original rod 1 on the tip side and can be divided into three parts. The main body 11a and the first portion 11b are the same as in the above embodiment. The second portion 11c is formed at the tip end of the tip of the original rod 11, and has a smaller diameter toward the tip side due to a more abrupt taper than the first portion 11b. The inner peripheral surface of the second part 11c becomes a second fitting female part. The former upper rod 12 has a first fitting male part and a second fitting male part corresponding to the former rod 11.
[0029]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the connection structure concerning this invention, even if it uses for a long time, the fall of a fitting force can be suppressed.
[Brief description of the drawings]
FIG. 1 is an overall view of a fishing rod employing a first embodiment of the present invention.
FIG. 2 is a view showing a stored state of a former upper rod 2 and a former rod 1 of FIG.
FIG. 3 is a view showing an extended state of a former upper rod 2 and a former rod 1 of FIG.
FIG. 4 is a diagram showing a former upper rod 12 and a former rod 11 employing another embodiment.
[Explanation of symbols]
1,11 Former rod 2,12 Former upper rod 2a First fitting male part 2b Second fitting male part

Claims (3)

A connecting structure of a rod body in which a small-diameter rod body is connected in a swing-out form so that it can be stored inside a large-diameter rod body,
The large-diameter rod body includes a tapered body portion, a first portion formed on the tip side of the body portion and having an inner peripheral surface serving as a first fitting female portion, A second portion formed on the tip side and having an inner peripheral surface serving as a second fitting female portion, wherein the inner diameter of the second portion is smaller than the inner diameter of the first portion;
The small-diameter rod body has a first fitting male portion fitted to the first fitting female portion formed on the outer peripheral surface of the rod base end portion, and the second fitting formed on the peripheral surface on the tip side. A connection structure having a second fitting male part fitted or abutted on the female part. A connecting structure of a rod body in which a small-diameter rod body is connected in a swing-out form so that it can be stored inside a large-diameter rod body,
The large-diameter rod body is a tapered body portion and a steeply tapered portion that is tapered from the body portion formed on the tip side of the body portion, and an inner peripheral surface thereof is a first fitting female portion. And a portion formed at the tip side of the first portion corresponding to the tip end of the large-diameter rod body with a smaller diameter and having a constant inner diameter within a certain range in the axial direction, A second portion whose surface is a second mating female portion,
The small-diameter rod body has a first fitting male portion fitted to the first fitting female portion formed on the outer peripheral surface of the rod base end portion, and the second fitting formed on the peripheral surface on the tip side. A connection structure having a second fitting male part fitted or abutted on the female part. A connecting structure of a rod body in which a small-diameter rod body is connected in a swing-out form so that it can be stored inside a large-diameter rod body,
The large-diameter rod body is a tapered body portion and a steeply tapered portion that is tapered from the body portion formed on the tip side of the body portion, and an inner peripheral surface thereof is a first fitting female portion. A first portion, and a steep taper portion formed on the tip side of the first portion corresponding to the tip end of the large-diameter rod body and further tapered than the first portion, and the inner peripheral surface of which is the second portion. A second portion that is a mating female portion,
The small-diameter rod body has a first fitting male portion fitted to the first fitting female portion formed on the outer peripheral surface of the rod base end portion, and the second fitting formed on the peripheral surface on the tip side. A connection structure having a second fitting male portion fitted to the female portion.

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