JP2000342126A - Fishing rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fishing rod capable of surely preventing the break damage to a main body of fishing rod by relaxing the stress concentration of the main body of fishing rod at a connected part to a handle part. SOLUTION: In this fishing rod in which a handle part 1 and a main body 2 of a fishing rod are separably constituted and a joint part to be engaged with the main body 2 of fishing rod is arranged at the tip side of the fishing rod of the handle part 1 so as to connect the handle part 1 to the machine body 2 of the fishing rod, the joint part is composed of a tubular part and a connecting part which is positioned at the end part of a fishing rod tip side of the joint part and has the length of the circumference longer than the tubular part. A fixing means for fixing the main body 2 of fishing rod is arranged on the inner peripheral face of the connecting part so as to maintain the connected state of the handle part to the main body 2 of fishing rod.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a fishing rod in which a rod body is removably inserted into a handle portion.

[0002]

2. Description of the Related Art Conventionally, this type of fishing rod has, for example, a structure shown in FIG.
And a cylindrical handle portion 51 on which the reel is mounted.
And a rod body 52 provided with a guide are configured to be separable. In the fishing rod, the handle part 51 and the rod body 52 can be connected by fitting the fitting part 53 on the rod base side of the rod body 52 into the fitting hole 54 of the handle part 51. By engaging the concave groove 56 formed in the side end surface 55 with the locking pin 57 attached inside the fitting hole 54, the fitting of the rod body 52 is stopped and the rotation of the rod body 52 with respect to the handle portion 51 can be prevented. .

[0003] A fastening ring 58 rotatably mounted on the rod main body 52 is screwed into a male screw portion 59 of the handle portion 51 and tightened to prevent the rod main body 52 from coming off. The handle portion 51 and the rod body 52 are integrated by being pressed by the locking pin 57.

[0004]

However, in the above-mentioned conventional fishing rod, the external thread 5 is formed on the outer peripheral surface of the handle 51.
9, the difference between the outer diameter d1 of the handle part 51 and the outer diameter d2 of the rod body 52 is increased. That is, since the male screw portion 59 is formed on the handle portion 51 having a uniform diameter, the thickness of the handle portion 51 must be increased as a whole, and the outer diameter difference from the rod body 52 to be fitted becomes large.

[0005] When the difference in outer diameter becomes large as described above, a difference in strength occurs between the handle portion 51 and the rod body 52, and the connecting portion,
For example, stress concentration occurs in the rod main body 52 at a position on the rod tip side of the fastening ring 58 and the like, causing breakage. In particular, in a fishing rod for big game fishing, it is more important to avoid this stress concentration.

Further, instead of forming the male screw portion 59 on the handle portion 51 as described above, a female screw portion is formed on the inner peripheral surface thereof, and a male screw portion is formed on the fastening ring.
There is also a configuration in which the fastening ring is screwed into the handle portion. Also in this configuration, since the joint portion of the handle portion into which the rod body is fitted is formed to have a uniform diameter up to the rod tip side end portion, the entire joint portion has a meat thickness to form a female screw portion. It is necessary to increase the thickness, and a large difference in outer diameter is generated between the rod and the rod body.

In any case, in the conventional fishing rod, the joint portion of the handle portion into which the rod body is inserted is formed in a straight shape having a uniform outer diameter up to the end on the rod tip side, so that it is inserted. The difference in outer diameter from the rod body becomes large, and stress concentration occurs in the rod body.

The present invention has been made in view of the above-mentioned conventional problems, and provides a fishing rod capable of reliably preventing breakage of the rod main body by relieving stress concentration of the rod main body at a connection point with the handle portion. That is the task.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a fishing rod according to the present invention is configured such that a handle portion 1 and a rod body 2 can be separated from each other. In the case of a fishing rod provided with a joint portion to which the rod body 2 is fitted on the rod tip side of the handle portion 1 so as to connect the rod body 1 and the rod body 2, the joint portion is a pipe portion. And a connecting portion that is located at a rod tip side end of the joint portion and has a circumference that is longer than the pipe portion. In order to maintain a connected state between the handle portion 1 and the rod body 2, A fixing means for fixing the rod body 2 is provided on the inner peripheral surface of the connecting portion.

In the fishing rod of this configuration, the connection between the rod body 2 and the handle portion 1 is maintained by the fixing means provided on the inner peripheral surface of the connecting portion. Since the length is longer than the tube portion, the diameter of the inner peripheral surface of the connecting portion can be increased while suppressing the outer diameter of the tube portion. Accordingly, a difference in outer diameter between the rod body 2 and the pipe portion can be suppressed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fishing rod according to an embodiment of the present invention will now be described with reference to FIGS. A fitting hole 3 into which the rod body 2 is fitted.
A fishing rod provided with a joint having the following will be described below.

The rod body 2 is formed in a solid shape over the entire length. Specifically, a prepreg is wound around an outer peripheral surface of a solid solid body 4. The prepreg is wound except for a predetermined area on the rod base side of the solid body 4, and the solid body 4 and the prepreg are formed by impregnating carbon fibers as reinforcing fibers with a synthetic resin. In FIG. 1, reference numeral 5 denotes a guide.

On the rod base side of the rod main body 2, a solid body 4 as a rod base is formed into a cylindrical shape by molding polybutylene terephthalate (PBT) containing a predetermined amount (30%) of glass. The insertion pipe 6 is fitted externally, and the tail end side end of the insertion pipe 6 is fitted with a tail rubber 7. The solid body 4 and the insertion pipe 6 fit into the insertion hole 3. The fitting portion of the rod body 2 to be inserted is configured.
The rod base may be a solid body 4 on which a prepreg is wound, and the insertion pipe 6 is preferably made of synthetic resin or metal.

On the rod tip side of the insertion pipe 6, a locking projection 8 is provided in a radial direction, and a pair of locking projections 8 are provided so as to face each other by 180 degrees. An annular flange 9 is formed on the pole tip side, and the annular flange 9 and the two locking projections 8 are integrally formed. In addition, as shown in FIG.
The projecting amount of the annular flange 9 is larger than that of the locking projection 8. FIG. 2B is a side view of the insertion pipe 6 alone.

A stainless steel grip ring 10 having a tapered flange 10a whose rod-end side end is widened like a trumpet is externally mounted on the solid body 4 on the rod tip side of the insertion pipe 6. The rod base side of the grip ring 10 is externally fitted and fixed to the rod end side end of the insertion pipe 6. The grip ring 10 is provided with a stainless steel-made fastening ring 11 having a male screw portion 11a on the outer peripheral surface of the rod tip side end portion.
Is slidable in the axial direction between the tapered flange 10a of the grip ring 10 and the annular flange 9. A front grip 12 is externally mounted on the rod tip side of the grip ring 10.

Next, a description will be given of the handle portion 1 into which the fitting portion of the rod body 2 having the above-described configuration is fitted.

The handle portion 1 is formed in a cylindrical shape as a whole, and is composed of a tubular body 13 formed by impregnating carbon fiber as a reinforcing fiber with a synthetic resin, and the fitting hole 3 is formed from the tubular body 13. It is composed. A stainless steel reinforcing pipe 14 is externally fitted to the rod end side end of the tubular body 13 serving as a joint of the handle part 1.
Is a straight pipe 1 thinner than the tubular body 13 and having a uniform diameter.
5 and a connecting pipe 16 located on the rod tip side of the straight pipe 15 and having a larger diameter than the straight pipe 15. As described above, the joint portion, which is the region where the rod main body 2 is fitted, is constituted by the rod end side end portion of the tubular body 13 and the reinforcing pipe 14.
, And a connecting portion having a constant outer diameter and a connecting portion formed with a connecting pipe 16 and having a widened end.

The reinforcing pipe 14 is, as shown in FIG.
Is fitted over substantially the entire length of the tubular body 13 into which the tubular portion 13 is fitted, and the tubular body 13 in the fitted region is reinforced. The connecting pipe 16 has a tapered portion 16
a, which has a widened shape which is widened toward the rod tip side as a whole, and is externally mounted on the tubular body 13 so as to protrude from the rod tip side end surface 13a of the tubular body 13 to the rod tip side for a predetermined length. Be done. As shown in FIG. 3, a female screw portion 18 that is screwed with the male screw portion 11a of the fastening ring 11 is formed on the inner peripheral surface of the rod tip side at the projecting portion 17 protruding from the tubular body 13 to the rod tip side. The diameter of the female screw portion 18 is larger than the outer diameter of the tubular body 13.

Further, the rod side of the female screw portion 18 (the tubular body 13)
An annular inner projection 19 is formed on the front end surface 13a of the rod). The rod end side end surface 19a of the inner projection 19 is
The rod-side end surface 9 of the annular flange 9 when the rod body 2 is fitted.
a is the contact surface to be contacted. The inner projection 19 has
A pair of locking notches 20 as locking portions with which the locking protrusions 8 are unevenly engaged are formed 180 degrees opposite to the locking protrusions 8 so as to pass through the inner protrusions 19 in the axial direction. As described above, the locking notch 20 is provided near the opening so as to engage with the locking projection 8 near the opening of the fitting hole 3.

Further, as shown in FIG. 5, when the annular flange 9 is in contact with the inner projection 19 in the axial direction, a predetermined axial direction is provided between the rod end side end surface 13a of the tubular body 13 and the locking projection 8. The distance between the rod end side end surface 19a of the inner projection 19 and the rod end side end surface 13a of the tubular body 13 so that the gap 21 can be formed;
And the axial length of the locking projection 8 are set. still,
As shown in FIG. 1, the tubular body 13 is provided with a pipe-shaped reel sheet 22 and a detachable tail plug 23.
In the figure, the reel sheet 22 is omitted.

The fishing rod according to the present embodiment has the above configuration.
The handle portion 1 and the rod body 2 can be connected by fitting the fitting portion of the rod body 2 into the rod tip side of the tubular body 13, and locking is performed in a state where the fitting portion is fitted to the tubular body 13. When the locking projection 8 engages with the notch 20, the fitted rod body 2 is locked by the locking notch 20, so that relative rotation with respect to the handle portion 1 is prevented. And the locking projection 8
Is engaged with the locking notch 20 and at the same time, the annular flange 9 is engaged.
Abuts against the inner projection 19 in the axial direction, and the fitting of the rod body 2 stops.

Thereafter, the male screw portion 11a of the fastening ring 11
Is screwed into the connecting pipe 16, the rod-side end face 11 b of the fastening ring 11 presses the annular flange 9 in the axial direction toward the handle portion 1, and the fastening ring 11 is tightened. 9 is the inner projection 19 and the fastening ring 1
1, the rod body 2 is completely pressed and sandwiched in the axial direction, so that the rod body 2 is completely integrated with the handle part 1 so that the rod body 2 can be prevented from coming off from the handle part 1. Conversely, after use, the rod body 2 can be easily separated by loosening the fastening ring 11 and pulling out the rod body 2 from the handle portion 1.

As described above, the fishing rod is connected to the fastening ring 11.
Is screwed into the handle portion 1. However, unlike the related art, a large-diameter connecting pipe 16 is provided at the end of the joint portion on the rod tip side. It is easy to make it larger than the inner diameter, and the outer diameter D1 of the straight pipe 15
And the outer diameter D2 of the grip ring 10 can be reduced as compared with the related art. That is, by increasing the diameter of only the mouth into which the fastening ring 11 is screwed and making the diameter of the rod base side smaller than the diameter of the mouth, the outer diameter difference between the joint portion of the handle part 1 and the rod body 2 is increased. Can be reduced. Therefore, the stress concentration of the rod body 2 caused by the difference in outer diameter can be reduced as compared with the conventional art, and as a result, the breakage of the rod body 2 at the connection point can be reliably prevented.

Further, the grip ring 10 is made of metal, particularly stainless steel, which is the same material as the straight pipe 15, so that the rigidity difference between the handle portion 1 and the rod body 2 at the connection point is determined. In addition, since the rod body 2 is formed in a solid shape, the difference in rigidity between the position where the grip ring 10 is mounted and the position on the rod tip side thereof is smaller than in the case of a hollow shape. Because it can be reduced
It is possible to sufficiently secure the strength of the rod body 2 against breakage as a whole. In particular, the effect is great in the case of a fishing rod used for boat fishing for a large object represented by trolling and jigging.

In the above embodiment, carbon fibers are used as the reinforcing fibers of the solid body 4 and the tubular body 13. However, glass fibers may be used.
Further, the rod body 2 may be formed in a cylindrical shape. That is, the fitting portion may be hollow. Further, a configuration in which the tubular body 13 is provided only on the rod tip side of the handle portion 1 can be adopted. In addition, various design changes are possible within the range intended by the present invention. For example, the straight pipe 15 and the connecting pipe 16 may be integrally formed, or the reinforcing pipe 14 and the tubular body 13 may be integrated without being separated. It is also possible to form a joint part having a connecting part by forming the joint part. Further, the shape of the connecting portion is not limited to a cylindrical shape.

Further, in the above embodiment, the female screw portion 18 is formed as a fixing means, and the female screw portion 18 is provided with the fastening ring 1.
Although the configuration in which the rod body 2 is fixed by screwing the rod body 1 has been described, for example, the connecting part is fixed so that the rod body 2 can be fixed to the handle part 1 by rotating the rod body 2 by a predetermined angle (half rotation). A groove is provided on the inner peripheral surface of the rod as a fixing means in the circumferential direction, and a projection for engaging with the groove is formed on the outer peripheral surface of the rod body 2. When the projection is engaged with the groove and rotated by a predetermined angle, the projection is engaged. The fixing means may be configured to stop, and the fixing means is not limited to the fastening means.

[0027]

As described above, in the fishing rod of the present invention, the difference in outer diameter between the pipe portion and the rod body can be suppressed by making the circumference of the connecting portion longer than the pipe portion. Therefore, compared to a conventional fishing rod having a straight handle portion up to the rod tip side end, stress concentration of the rod body caused by the difference in outer diameter can be reduced, and as a result, the rod body at the connection point This has the effect of reliably preventing breakage.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of a fishing rod according to an embodiment of the present invention.

FIG. 2 shows a main part of the fishing rod of the embodiment, (a) is a cross-sectional view showing the rod base side of the rod body, and (b) is a side view of the insertion pipe viewed from the rod base side.

3A and 3B show a main part of the fishing rod of the embodiment, wherein FIG. 3A is a side view of the handle portion viewed from the rod tip side, and FIG. 3B is a cross-sectional view of the handle portion on the rod tip side.

FIG. 4 is an essential part cross-sectional view showing a state where the handle portion and the rod body are integrated in the fishing rod of the embodiment.

FIG. 5 is an enlarged view of a part P in FIG. 4;

FIG. 6 is a sectional view of a main part showing a conventional fishing rod.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Handle part, 2 ... Rod main body, 11 ... Fastening ring, 11
a: Male thread, 18: Female thread

Claims (2)

[Claims] A handle (1) and a rod main body (2) are configured to be separable, and a rod of the handle (1) is connected to connect the handle (1) and the rod main body (2). In a fishing rod provided with a joint portion on the front side to which the rod body (2) is fitted, the joint portion is located at a pipe portion and at a rod tip side end of the joint portion. And a connecting portion having a circumference that is longer than the pipe portion. In order to maintain a connected state between the handle portion (1) and the rod body (2), a rod body is provided on an inner peripheral surface of the connecting portion. A fishing rod characterized by comprising fixing means for fixing (2). 2. The fixing means is a female screw part (18), and a male screw part (11a) screwed into the female screw part (18).
2. A fishing rod according to claim 1, wherein said fishing rod is provided on said rod body (2).