JP5142260B2 - fishing rod - Google Patents

Description

  The present invention provides a fishing rod in which the outer peripheral surface of the small-diameter side casing is pressed against the front inner peripheral surface of the large-diameter side casing, and the small-diameter side casing and the large-diameter side casing are set in an extended state. About.

As shown in FIG. 6 of the publication, the internal space of the former side end of the small-diameter side casing, which is in pressure contact with the front inner peripheral surface of the large-diameter side casing and connected in an extended state, is usually a simple space. There are many cases, and when it is particularly necessary, a rubber butt plug is attached (Patent Document 1).
Japanese Patent Laying-Open No. 2004-248666 (paragraph [0022], FIGS. 3 and 6)

  Therefore, when a large amount of bending force is applied to a fishing rod, a large bending stress acts on the connecting portion between the small-diameter side rod and the large-diameter side rod, which may cause cracks or cracks. there were.

  In other words, when bending is applied to the fishing rod, the entire body deforms like a bow, but in that case, at the connecting portion, each rod body has a short axis in the vertical direction and a long axis in the horizontal direction from the circular cross section. It is transformed into an elliptical cross section. If this deformation becomes excessive, the heel tip of the large-diameter side housing is strongly pressed against the outer peripheral surface of the small-diameter side skeleton, so that a strong pressure is received by the heel tip of the large-diameter side housing. In addition, there is a possibility that cracks or bends may occur at the former end of the small-diameter side casing.

  An object of the present invention is to provide a fishing rod that can increase the resistance against bending and improve the lifting force by mounting a simple structure on the former end of the small-diameter side rod. is there.

〔Constitution〕
According to a first aspect of the present invention, a core material is mounted in an inner space of the original side end portion of the small-diameter side casing, and the original portion of the core material is formed on the original side end portion of the small-diameter side casing. Formed into a shape that is fitted and held on the inner peripheral surface and formed into a warhead type shape in which the tip side portion of the core member is in a tapered state,
The warhead-shaped tip side portion is located further on the tip side than the tip end of the large-diameter side housing fitted to the original outer peripheral surface of the small-diameter side housing. It is as follows.

[Action]
As the core part is formed in a shape in which the tip part is tapered, the tip part is the inner circumference of the large-diameter side casing as shown in FIG. When the bending becomes deeper, as shown in FIG. 2 (b), the front side portion comes into contact with the inner peripheral surface of the original side portion of the small-diameter side housing. Take the body.
If it does so, it will switch from the state which countered the bending force which the small diameter side case exerted by the small diameter side case alone, and the state which opposes by cooperation with a core material, and will improve the proof power to the breakage of a small diameter side case. be able to.
In addition, since the core material is fitted in a state where it is held on the inner peripheral surface of the original side end, the presence of the original end of the small-diameter side casing is the cylindrical shape of the casing itself. In addition to being able to withstand the bending force, it was possible to disperse the load on the core material and to counteract it by the compressive strength of the core material, so that the small-diameter side housing itself could be strengthened.

〔effect〕
Therefore, it is possible to construct a counter structure in two stages, a state that resists the bending force due to the proof strength of the small-diameter side housing itself and a state that opposes together with the core material against a larger bending force. We have been able to provide something suitable for anglers who prefer large fishing rods.

〔Constitution〕
The characteristic configuration of the invention according to claim 2 is that the core material is made of prepreg, and its operational effects are as follows.

[Function and effect]
Since the core material can be made of the same material as the fishing rod, there is little difference in surface hardness between the core material and the small-diameter side frame.
Then, even if the bending becomes deep and the inner peripheral surface of the small-diameter side casing is in pressure contact with the tip of the core material, the surface is unlikely to be damaged, and the propagation of cracks due to the damaged surface, etc. Can also be avoided.

[First embodiment]
The form which applies this invention to a swing type fishing rod is shown. As shown in FIG. 1, a fishing rod A used for a rod, a mountain stream rod or the like is a medium rod such as a tip rod 1, a second rod 2, a third rod 3, etc. having a top portion 1A for locking a fishing line a. In addition, it is configured to include a base rod 4 having a hand grip portion 4A.

  The fishing rod A is succeeded to the swing type, and the swing structure will be described with the second rod 2 as the small-diameter side rod and the third rod 3 as the large-diameter side rod as shown in FIG. In the state where the second cage 2 is pulled out from the third cage 3, the former outer peripheral surface 2A of the second cage 2 is pressed against the front inner circumferential surface 3A of the third cage 3, so that the second cage 2 3 The escape from the tip of the guard 3 is prevented.

In the above-described configuration, the core material 5 is provided in the internal space of the former side end of the second cage 2. The core material 5 has a sharp warhead shape with the front side portion 5A, and the outer peripheral surface of the original side portion 5B is fitted into the original inner peripheral surface of the second rod 2 so as to be integrated with the second rod 2. Is installed.

The portion of the core material 5 fitted into the former inner peripheral surface of the second cage 2 has a solid rod shape with a certain length, and the front inner circumferential surface 3A of the third cage 3 is second. It is formed in a length corresponding to the length fitted to the former outer peripheral surface 2A of the flange 2. The warhead-shaped front side portion 5A is located further on the tip side than the tip of the third hook 3 fitted to the former outer peripheral surface 2A of the second hook 2.
The above-described core material 5 is appropriately attached not only to the original inner peripheral surface of the second collar 2 but also to the former inner peripheral surface of the other intermediate collar.

  Due to the presence of the core material 5, the following operational effects can be obtained. When a fish is caught during actual fishing and the entire fishing rod A is bent greatly, for example, a third rod as a large-diameter side rod at the joint portion between the small-diameter side rod and the large-diameter side rod. 3 is strongly pressed against the former outer peripheral surface 2A of the second collar 2, so that a large bending stress is generated, and eventually an internal crack may be generated or broken.

  Even in such a case where a large deflection may occur and breakage may occur, as shown in FIG. Even if a further bend that starts to contact the side inner peripheral surface 2B and leads to breakage or the like of the second cage 2 is caused, the occurrence of the bend can be received and suppressed.

A prepreg is used as the material of the core material 5. A large number of carbon fibers or glass fibers are bundled, and the bundled reinforcing fibers are immersed and impregnated in a tank in which a thermosetting resin or a thermoplastic resin is melted and stored. The fiber bundle is drawn into a linear shape by impregnating the molten resin, and the drawn fiber bundle is formed into a drawn bar shape through a die.
A rod-like fiber bundle is chopped into a predetermined length and subjected to grinding / polishing to form a shape as shown in FIG.

  As a mounting portion of the core material 5, it can be mounted not only on the second cage 2 but also on other intermediate rods up to the original.

[Second Embodiment]
Next, the form applied to the parallel spear B will be described. Here, as a representative example, a description will be given of a connection portion between the second fence 2 and the third fence 3. As shown in FIG. 3, a circumscribing inclined surface 2 a having a smaller diameter is formed on the former outer peripheral surface 2 </ b> A of the second cage 2, and the former end on the front inner circumferential surface 3 </ b> A of the third cage 3. An inscribed inclined surface 3a having a small diameter is formed.
When the former-side outer peripheral surface 2A of the second cage 2 adopting such a form is inserted into the front-side inner circumferential surface 3A of the third cage 3 and attached, the circumscribed inclination of the former-side outer circumferential surface 2A of the second cage 2 When the surface 2a is in pressure contact with the inscribed inclined surface 3a of the front side inner peripheral surface 3A of the third flange 3, a spliced state appears.

In such a side-by-side cage B, the core material 5 is fitted and held in the former-side inner peripheral surface 2B of the second cage 2. The form of the core material 5 is the same as that of the first embodiment, and has a warhead type front portion 5A. In addition, as described above, the mounting state of the second cage 2 is a solid rod shape with a certain length in the portion of the core member 5 that is fitted into the former inner peripheral surface 2B of the second cage 2. The front side inner peripheral surface 3A of the third cage 3 is formed to have a length that fits with the former outer circumferential surface 2A of the second cage 2. The warhead-shaped front side portion 5A is located further on the tip side than the tip of the third hook 3 fitted to the former outer peripheral surface 2A of the second hook 2.

As described in the first embodiment, the function of the core member 5 is that the front side portion 5A of the warhead type of the core member 5 is the inner periphery of the second rod 2 when the fishing rod B is bent greatly. Abutting on the surface 2B and receiving it, the breakage or the like of the second cage 2 or the third cage 3 is prevented.

[Other Examples]
(1) As a mounting form of the core material 5 with respect to the small-diameter side casing, the rear end of the core material 5 may protrude from the rear end of the small-diameter side casing, or is slightly closer to the tip side than the rear end. It is also possible to maintain the shape so that the original side portion 5B is fitted to the inner peripheral surface of the small-diameter side housing, and the tapered front side portion 5A is formed on the tip side from the original side portion 5B. That's fine.
(2) In the embodiment, an example in which the present invention is applied to a fishing rod without a guide has been shown. However, the embodiment may be applied to a guide rod with a guide or a parallel rod.

Overall side view showing swing-type fishing rod (A) Longitudinal side view showing a state in which a small-diameter side frame equipped with a core is pulled out, (B) Longitudinal side view showing a state where a large fishing rod is bent from the state (A) Longitudinal side view showing a state where it is applied to a tandem fishing rod and a state where a small-diameter side frame is mounted on a large-diameter side frame

2 No. 2 (small-diameter side frame)
2A Original side outer peripheral surface 3 No. 3 rod (large-diameter side frame)
3A Front side inner peripheral surface 5 Core material 5A Front side part 5B Original side part

Claims (2)

A fishing rod that presses the former outer peripheral surface of the small-diameter side housing to the front-side inner peripheral surface of the large-diameter side housing, and sets the small-diameter side housing and the large-diameter side housing in an extended state,
A shape in which a core material is mounted in the inner space of the original side end portion of the small-diameter side housing, and the original side portion of the core material is fitted and held on the inner peripheral surface of the original-side end portion of the small-diameter side housing. And formed into a warhead-shaped shape in which the tip side portion of the core material is in a tapered state,
A fishing rod in which a warhead-shaped tip side portion is positioned further to the tip side than a tip end of the large-diameter side rod body that is fitted to the original outer peripheral surface of the small-diameter side rod body .   The fishing rod according to claim 1, wherein the core material is made of prepreg.

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