JP2547945B2 - Through rod - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention forms a fishing line introduction hole on the outer surface of a rod member on the hand side, and extends and contracts the rear end of an elastic rod member retractably accommodated inside the rod member on the hand side. In addition to forming an opening that allows the introduction of fishing line into the rod material, while the expansion rod material is in an expanded state, the rear end of the expansion rod material is fitted to the inner surface of the tip opening of the rod material on the hand side and extends. The present invention relates to a threading rod configured to hold a state.

[0002]

2. Description of the Related Art Conventionally, as a fishing rod, it has been used as a conventional fishing rod.
There is one disclosed in Japanese Patent No. 9655, and the gist of this is to form an introduction hole for a fishing line on the outer surface of the rod material on the hand side,
An opening that allows the introduction of fishing line into the elastic rod material is formed at the rear end of the elastic rod material that is retractably accommodated inside the rod material on the hand side, and near the introduction hole inside the rod material on the hand side. , A plate-shaped abutment member that receives the rear end of each expansion rod material and restricts further entry is formed, and a thread insertion hole that leads to the opening of the expansion rod material is formed at the center position of this engagement member. There was a certain point.

[0003]

In the above-mentioned conventional structure, as a working mode in which the elastic rod member is set to the contracted state and the thread is inserted, first, the thread threading tool with the thread locked is inserted through the thread introduction hole. , Then, the threading tool is further pushed through the thread insertion hole of the plate-shaped abutment member to be inserted into the elastic rod material, but further between the thread introduction hole and the opening of the elastic rod material. Since the thread insertion hole of the plate-shaped contact member is present, the work of inserting the thread is difficult and the insertion work is time-consuming. Further, since the opening of the elastic rod material cannot be directly seen, the work becomes difficult. And, in the past, since the plate-shaped abutting member is configured as a part of the rod material positioned inside the main rod and is fixed inside the main rod, the stick-out type tip rod and core etc. It cannot be pulled out from the rear end opening of the rod. Therefore,
Even if a plate-shaped contact member is provided near the thread introduction hole, it is necessary to make it removable so that the tip rod or the like can be pulled out, but it can be removed near the thread introduction hole. It was difficult to adopt such a structure because it is difficult to realize because of its structure. An object of the present invention is to provide a thread insertion work that can be performed more easily than in the past.

[0004]

According to a first aspect of the present invention, in the contracted state of the expandable rod member, the position holding for determining the retracted position of the expandable rod member at a position where the introduction hole and the opening are brought close to each other is maintained. A portion is provided at a position on the front side of the opening in the elastic rod material, and the position holding portion is set to the contracted position in a first state, and the elastic rod material is located closer to the hand side than the contracted position. The point is that it is configured to be switchable to the second state in which it is allowed to enter the rod material,
The effect is as follows.

[0005]

In other words, since the position holding portion for determining the contracted position of the elastic rod material is provided on the front side of the opening, there is no conventional contact member at the opening position. Therefore, the elastic rod material is set to the contracted position, the opening is located near the introduction hole of the hand side rod material, and the thread can be immediately inserted into the opening through the introduction hole of the hand side rod material. Moreover, when the position holding portion is switched to the second state, the elastic rod material can be further positioned inside the rod material on the hand side, so that the entire length of the elastic rod material can be stored in the rod material on the hand side. The rod length can be shortened when it is closed, which is convenient for carrying around. Further, it is also possible to pull out the elastic rod material from the rear end opening of the rod material on the proximal side and disassemble and clean each rod.

[0006]

Therefore, the thread inserting operation can be performed more easily, and the fishing preparation can be performed in a shorter time. Moreover, even if the thread is inserted and stored, since the opening of the expansion rod material is close to the introduction hole of the proximal side rod material, the thread will not be folded back at the opening of the expansion rod material. It does not cause any bite. In addition, when moving around the fishing ground, the rod length can be shortened for easy carrying, and the fishing rod can be easily disassembled for cleaning.

[0007]

According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the position holding portion contacts the tip of the rod material on the hand side in the contracted state of the elastic rod material. It is a contacting member that hits and is detachable with respect to the expandable rod material, and its function and effect are as follows.

[0008]

In other words, since the contact member is simply brought into contact with the rod member on the hand side, it suffices if the tip of the rod member on the hand side has a surface sufficient for contact with the rod member. No structure required. Also, since the contact member is positioned further forward than the tip of the rod member on the proximal side, it can be seen from the outside,
Easy to put on and take off.

[0009]

In addition to the effect of the first aspect of the invention, since the abutment member can be attached to and detached from the elastic rod material, only the abutment member needs to be replaced when the abutment member is damaged. There is also.

[0010]

According to a third aspect of the present invention, in the structure according to the first aspect of the present invention, the tip of the tip rod retractably accommodated in the elastic rod material is moved to the inside of the tip rod. In order to determine the contraction position at a position where the opening of the tip rod is brought close to the opening of the elastic rod material, in the contracted state of the tip rod, the holding for holding the tip rod is formed. It is in the point that the mechanism is formed, and its action and effect are as follows.

[0011]

In other words, since the opening of the tip rod is close to the opening of the elastic rod material, when the thread is inserted into the opening of the elastic rod material as a target, the opening of the tip rod located in the vicinity thereof is opened. The thread can also be inserted into the hook and the tip rod is held against the elastic rod material, so the relative position of the tip rod and the elastic rod material does not change during the thread insertion work. .

[0012]

Therefore, by inserting the thread into the opening of the tip rod, the threading to the elastic rod material is also performed, and the efficiency of the thread insertion work can be improved accordingly. There is no need to take a labor-intensive work form such as attaching the free hand to the tip rod so that the relative position of the elastic rod material and the tip rod does not change during the threading operation.

[0013]

According to a fourth aspect of the present invention, in the configuration of the first aspect of the invention, the thread introduction hole has its major axis set in a direction along the axial direction of the rod. It is a long hole, and its effects are as follows.

[0014]

That is, since the major axis of the thread introduction hole is set in the direction along the thread insertion direction, it is easy to insert the thread.

[0015]

Therefore, the thread can be inserted by simply setting the shape of the thread introduction hole rationally, and by making the thread long, it becomes a circular shape having the same diameter as the major axis. Compared with this, the opening area can be reduced, and the reduction in strength due to the opening can be suppressed.

[0016]

According to a fifth aspect of the present invention, in the configuration of the first aspect of the invention, the position holding portion is the contracted state of the elastic rod member, and the inner peripheral surface of the hand-side rod member. And a bulging portion that allows the transition of the elastic member to the second state while being brought into contact with the first state,
The effect is as follows.

[0017]

That is, when the expandable rod member is contracted, the bulging portion comes into contact with the inner peripheral surface of the rod member on the proximal side to expose the first state. Then, the rear end opening of the elastic rod material is located near the thread introduction hole,
The thread can be easily introduced into the opening. Since what is formed on the elastic rod material is the bulging portion, when the bulging portion operates the elastic rod material against the contact pressure that contacts the inner peripheral surface, the elastic rod material is further closer to the hand side. It is possible to switch to the second state in which the rod material is stored at the rear end side, and it is also possible to set the stretchable rod material to the extended state in which it is pulled out toward the front of the rod material on the hand side.

Therefore, the expansion rod member can be moved from the contracted state only by applying a forced operation force, and it is easy to finely adjust the contraction position of the expansion rod member with respect to the yarn introducing hole. You can do it. Further, it is possible to switch to the second state and disassemble each rod material for cleaning.

[0018]

EXAMPLES [First Example] As shown in FIGS. 2A and 2B, a tip rod 1, a rod material 2 and a stretch rod material 3, a tip rod 1 and a rod material 2, and a stretch rod material 3 are provided. A swing-out type centering rod is configured by arranging a base 4 as a hand-side rod material to be attached in a swing-out type, and a stretchable base rod 5 with respect to the base 4. An abdominal pad 6 is provided at the rear end of the base rod 5, a reel 7 is attached at an intermediate position, and a thread a fed from the reel 7 is formed into an oval thread introduction hole 4A formed on the outer surface of the base 4. And is inserted into the tip rod 1.

The tip rod 1, the rod material 2, and the elastic rod material 3 are constructed in a swing-out type so that they can be freely moved in and out of the original 4, and the original rod 5 is also expandable and contractable with respect to the original 4. At times,
It can be shortened as shown in FIG.
At the time of fishing, as shown in FIG. 2B, the tip rod 1
Needless to say, the main rod 5 is extended rearward to increase the distance between the reel 7 and the yarn introducing hole 4A, thereby reducing the resistance when the yarn a is introduced into the rod. Can increase the effect of.

As shown in FIG. 1, a metal grip portion 1A having a slightly expanded state is formed at the tip of the tip rod 1 and the grip rod 1A is housed in the upper portion 4 of the grip portion 1A. Only the protruding portion makes it easy to pull out the tip rod 1. As shown in FIG. 1, the top of the base 4 is covered with a head 4B, and the tip of the elastic rod material 3 is attached to a contact member 8 as a position holding portion.
When the expansion rod member 3 is contracted by screwing in, the contact member 8 is brought into contact with the head 4B to set the contraction limit of the expansion rod member 3. Screw member 3A for screwing the contact member 8
Is externally fitted to the front end portion of the elastic rod material 3, and the rear end portion of the screw member 3A is internally fitted to the inner peripheral surface of the base 4 to fix the contracted state of the elastic rod material 3. There is. The state in which the abutment member 8 abuts on the tip of the base 4 and the expansion rod material 3 is set to the contraction limit is referred to as the first state of the position holding portion. When the contact member 8 is removed from the screw member 3A from the first state, the elastic rod material 3 can be inserted into the rod material 4 on the hand side, and the elastic rod material can be inserted from the rear end of the rod material 4 on the hand side. 3 can be extracted. This allows disintegrated water washing. A state in which the contact member 8 can be removed from the screw member 3A and the expandable rod member 3 can be inserted into the rod member 4 on the near side is referred to as a second state of the position holding portion. As shown in FIGS. 1 and 6, a rubber holding member 9 as a holding mechanism is internally screwed to the rear end of the elastic rod material 3, and an uneven surface 9A is formed on the inner peripheral surface of the holding member 9. As a guide mechanism for guiding the rear end of the tip rod 1, a tapered inclined surface is formed at the front end of the uneven surface 9A, and the rear end of the tip rod 1 passing through the tapered inclined surface is held by the uneven surface 9A. I am doing it. An opening for introducing the thread a is formed at the rear end of the holding member 9, and a ceramic guide ring 13 is attached to this opening. Further, the rear end of the rod member 3 is brought into contact with the front end surface of the holding member 9, and a restriction portion 9B that sets the contraction limit in the contracted state of the rod member 3 is configured.

On the other hand, in the base 4, a resin outer fitting member 4D is closely fitted to the outer circumference of the rod material 4C, and an opening is formed at an intermediate position of the outer fitting member 4D to introduce the above-mentioned thread a. 4A is formed. A guide ring 10 made of stainless steel or ceramic is attached to the inner edge of the introduction hole 4A, and the rear end of the elastic rod material 3 at the contraction limit by the contact member 8 in the contracted state enters the opening area of the introduction hole 4A. It is composed. That is, as shown in FIG. 5, the thread introduction opening 3B formed at the rear end of the elastic rod material 3 is formed into the introduction hole 4A.
Through, it is possible to see from the outside. Therefore, when the thread insertion tool 11 holding the thread a is introduced into the elastic rod material 3, the opening 3B can be confirmed and threading can be performed easily.

As shown in FIG. 1, a large-diameter grip portion 5A is formed at the front end of the base rod 5, and a rubber ring body 12 is attached to the tip side of the grip portion 5A so that the base rod 5 is moved forward. When the rubber ring body 12 is brought into close contact with the outer fitting member 4D when the outer fitting member 4D of the original 4 is fitted and fixed by being relatively moved, the fitted state of the original rod 5 can be performed without rattling. Have an effect. Then, as shown in FIG. 2B, in a stretched state in which the original rod 5 is pulled out rearward with respect to the upper rod 4, the rubber ring body 12 is closely fitted onto the rod material 4C of the upper rod 4 and is in that state. To maintain. As shown in FIG. 7, the contact member 8
In contrast, the cap 1 that covers the tip rod 1, the rod material 2 and the contraction rod material 3 in a contracted state while covering them
The cap 14 is provided with a slit 14a for taking out the thread a to the outside.

As shown in FIG. 1, the belly pad 6 attached to the bottom of the rod 5 is made of soft rubber as a main body 6A, and is fixed to the rear end of the rod 5 with screws. The threaded portion 6B is made of rubber harder than the main body 6A.

[Second Embodiment] A portion different from the first embodiment will be mainly described. As shown in FIG. 8 and FIG. 9, the head portion 4B is externally fitted to the tip of the base 4. The thread introduction hole 4A is formed in the middle of the original 4 and the thread introduction hole 4A is formed.
The plate thickness of the base 4 itself forming the is made thicker than the plate thickness of the tip portion, and the external fitting member 4D is externally fitted and reinforced.

As shown in FIG. 8, a mouth cap 16 is externally fitted to the tip of the elastic rod material 3 located inside the base 4, and a bulge portion 16A is formed on the outer surface of the mouth cap 16. A fitting fixing portion that fits on the inner surface of the mouth portion of the base 4 is formed, and the contact member 8 is screw-connected to the outer surface of the mouth portion cap 16. On the other hand, a resin-made holding member 9 is screw-connected to the rear end of the elastic rod material 3 in a state where the resin-holding member 9 is internally fitted, and an opening 3B for thread insertion is formed at the axial center position of the holding member 9. A guide ring 13 for the thread a is attached to the. With such a configuration, when the expandable rod material 3 is inserted into the upper part 4 from the rear end and the contact member 8 is attached and fixed to the mouth cap 16, the contact member 8 contacts the front end of the upper part 4. Then, the thread insertion opening 3B of the holding member 9 is located near the thread introduction hole 4A in the abutting state. As shown in FIG. 6, a fitting ring 9A made of rubber is fitted inside the holding member 9 and the rear end of the tip rod 1 is fitted and held by the inner uneven surface of the fitting ring 9A. . Also, the holding member 9
The rear end of the rod member 2 is brought into contact with the front side surface of the rod member 2 to form a restriction portion of the rod member 2.

A grip portion 5A is formed at the front end of the base rod 5, but the rubber ring body 12 is not attached. Therefore, since the holding force of the rubber ring body 12 cannot be expected, the belly pad 6 is used to hold the original 4 as described below. As shown in FIG. 8, a through hole 6a is formed at the axial center position inside the rubber main body 6A in the belly pad 6, and an annular recessed portion 6b opening forward is formed on the outer diameter side of the through hole 6a. Has been formed. A spline-shaped uneven surface is formed on the small-diameter outer diameter surface of the annular recessed portion 6b, and the rear end of the original 4 is externally fitted to the uneven surface so that the contracted state of the original 4 is fixed. is there. A bottom ring 17 made of hard resin is fixed to the rear end of the base rod 5, and an externally threaded trapezoidal screw portion 17A is formed on the bottom ring 17. The annular recessed portion 6b of the rubber body 6A is externally fitted to the hip ring 17,
Attach the rubber body 6A. Threaded part 17 of the buttocks ring 17
It is not necessary to form a threaded portion on the large-diameter inner peripheral surface of the annular recessed portion 6b fitted into A, and the rubber main body 6A can be attached to the butt ring 17 only by forcing the rubber main body 6A. However, on the large diameter inner peripheral surface of the annular recessed portion 6b, the tail ring 1
You may form the screw part screwed in the trapezoidal screw formed in 7.

[Other Embodiments] In the above embodiment, the rod material 2 may further include a plurality of rod materials, or conversely, the rod material 2
May be omitted and a rod configuration may be adopted. As for the configuration of the rod, the thread introducing hole 4A is formed in the base 4, but the thread introducing hole may be formed in the rod material 2. In this case, the base becomes the hand side rod material and the rod material Is a stretch rod material. Of course, when the thread introducing hole is formed in the base rod 5, the base rod is the hand side rod material, and the base is the expandable rod material. As for the configuration of the rod, if the proximal side rod material and the stretchable rod material are in the swing type, it is not necessary that all the rods are configured in the swing type, and the other rod materials 2 and the tips are used. The rod 1 and the like may have a side-by-side configuration.

The structure of the contact member 8 may be as follows. (A) As shown in FIG. 19, the contact member 8 provided at the tip of the elastic rod member 3 is formed in a ring shape so that it can be attached to and detached from the distal end of the elastic rod member 3, More elastic rod material 3
The contact member 8 is adhered and fixed to the tip of the elastic rod material 3 with the elastic member inserted, and when the elastic rod material 3 is pulled out from the rear end of the original 4 for washing with water, the contact member 8 is stretched. The material is removed from the material 3. (B) As shown in FIG. 10, the contact member 8 is made of hard rubber or the like, and the rubber contact member 8 is detachably attached to the tip of the elastic rod material 3. The abutting member 8 is press-fitted to the tip of the elastic rod material 3 by the elastic force of rubber or the like. This eliminates the need for a screw-type attachment / detachment structure. The contact member 8 may be configured such that the main body is formed of a hard member made of resin or the like, and a close fitting member such as rubber is baked and adhered to the inner surface fitted to the tip of the elastic rod material 3. (C) As shown in FIG. 11, as the contact member 8, a main body is made of a hard member such as resin or metal, and an O-ring or the like is closely attached to the inner surface fitted to the tip of the elastic rod member 3. The fitting member 19 may be attached. (D) As shown in FIG. 12, an annular projection 8a is formed on the inner surface of the contact member 8 and an annular recess 3a is formed on the outer peripheral surface of the distal end of the elastic rod material 3 to form the annular projection 8a and the annular recess 3a. The structure for forming the attachment / detachment structure of the contact member 8 may be adopted by the engagement / disengagement action of.

Instead of providing the contact member 8 as the position holding portion 8, the following configuration may be adopted. (A) As shown in FIG. 17, the O-ring 18 is attached to an intermediate position of the expandable rod member 3 and is fitted into the bulging portion 4a formed on the inner surface of the base 4, thereby contracting the expandable rod member 3. The state can be revealed. In addition to this, a rubber ring represented by an O-ring 18 is externally fitted and mounted on the elastic rod material 3, and the elasticity of this rubber ring is used to move the elastic rod material 3 in the axial direction of the elastic rod material 3 to adjust its fixed position. Then, in a state where the elastic rod material 3 is contracted, the rubber ring whose position has been adjusted is pressed against the inner peripheral surface of the base 4 so that the stop position of the elastic rod material 3 is determined in the position adjusted position. Is also possible. (B) As shown in FIGS. 15 and 16, a member such as a prepreg is raised on a tubular rod material to form a bulging portion 3C on the outer surface of the expandable rod material 3 at an intermediate position, which corresponds to the bulging portion 3C. Then, an inwardly bulging portion 4E is formed on the inner surface of the intermediate position of the base 4, and both bulging portions 4E and 3C are brought into pressure contact with each other to set the contracted state of the elastic rod material 3. In this state, the rear end opening 3 of the expandable rod material 3
B and the rear end opening 1B of the tip rod 1 are located in the vicinity of the yarn introducing hole 4A. When the operation force is further increased from this contracted state and the expansion rod material 3 is pushed in, the expansion rod material 3, the rod material 2, and the tip rod 1 are originally housed in the inside 4. When the bulging portions 4E and 3C are fitted to each other, the fitting force is substantially constant in the axial center constant range, so that the fitting position can be changed within the constant range to adjust the position of the rear end opening 3B. . On the other hand, when the elastic rod material 3 is pulled out from the contracted state, the rear end portion 3C of the elastic rod material 3 is fitted to the inner surface of the mouth portion of the base 4, and the expanded state is revealed. (C) Instead of the bulging portion provided at the intermediate position of the elastic rod material 3, a rubber ring is externally fitted and attached to the tubular rod material, and this rubber ring is formed on the inner surface of the original 4. It is also possible to adopt a configuration in which the contracted state of the elastic rod material 3 is exposed by pressing against the bulging portion. (D) As shown in FIG.
And the ring-shaped projection 3 on the outer peripheral surface of the elastic rod material 3.
By forming b, the tip of the screw type pin 20 is projected inward from the inner peripheral surface of the base 4, and the annular projection 3b of the elastic rod material 3 is received, the contracted state of the elastic rod material 3 can be revealed. . It is possible to set the screw-type pin 20 so as not to project into the inside of the base 4 and to allow the expansion rod member 3 to freely move. (E) As shown in FIG. 14, the above-mentioned screw type pin 20
Instead of, the spring ball mechanism 21 may be provided. (H) As shown in FIG. 18, the convex portion 4 is formed on the inner peripheral surface of the original 4.
b is formed, and a concave portion 3b is formed on the outer peripheral surface of the elastic rod material 3.
Is provided, and the contracted state of the elastic rod material 3 is revealed by the engagement of both parts 4b and 3b. If the expansion / contraction rod member 3 is pushed and pulled against the engaging force of the both portions 4b, 3b, the expansion / contraction rod member 3 can be moved out of the engaged state of the both portions 4b, 3b. In this case, the convex portion 4b and the concave portion 3b are limitedly provided in a part in the circumferential direction, and in the state before the both 4b and 3b are fitted, the axis of the expandable rod material 3 is originally the axis of the axis 4. A configuration may be adopted in which the two parts 4b and 3b are inserted with a slight inclination to each other, and the axes of the two parts 4b and 3b are aligned with each other so that the fitting of the two parts 4b and 3b is completed. (G) Although not shown in the figure, when a mark is provided on the outer peripheral surface of the tip of the elastic rod material 3 and the mark is pushed to a position where it coincides with the tip of the base 4, the rear end opening 3B is inserted into the thread introduction hole 4A. The position holding unit 8 may be configured so as to be located near. This is preferably used in combination with the other mechanism described above. (H) As described above, when the position holding portion 8 is bulged, it may be integrally formed with the same material as the rod material 4C (prepreg), or may be formed with resin or paint. Good.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a main part of a blow-out type centering rod in which a base rod, a tip rod, a rod material, and an elastic rod material are contracted.

[Fig. 2] (a) Side view showing a state in which the original rod and the tip rod, the rod material, and the elastic rod member are contracted. (B) A state in which the original rod and the tip rod, the rod member, and the elastic rod member are extended. Side view

FIG. 3 is a side view showing a state in which the original rod is extended and the tip rod, the rod material, and the elastic rod material are contracted.

FIG. 4 is a side view showing a state in which the original rod is contracted, and the tip rod, the rod material, and the expansion rod material are extended.

FIG. 5 is a plan view showing a thread insertion hole.

FIG. 6 is a longitudinal sectional front view showing an externally fixed portion of the holding member with respect to the spike.

FIG. 7 is a perspective view showing a state in which a cap is capped in a state in which a tip rod or the like is contracted.

FIG. 8 is a vertical sectional side view showing another embodiment corresponding to FIG.

9 is an overall side view of the rod corresponding to FIG.

FIG. 10 is a vertical sectional side view showing another structure of the contact member.

FIG. 11 is a vertical sectional side view showing another structure of the contact member.

FIG. 12 is a vertical sectional side view showing another structure of the contact member.

FIG. 13 is a vertical cross-sectional side view showing another structure of the position holding portion of the elastic rod material.

FIG. 14 is a vertical sectional side view showing another structure of the position holding portion of the elastic rod material.

FIG. 15 is a vertical cross-sectional side view showing another structure of the position holding portion of the elastic rod material.

FIG. 16 is a vertical cross-sectional side view showing a state in which the elastic rod material is extended in FIG.

FIG. 17 is a vertical sectional side view showing another structure of the position holding portion of the elastic rod material.

FIG. 18 is a vertical sectional side view showing another structure of the position holding portion of the elastic rod material.

FIG. 19 is a vertical sectional side view showing another structure of the contact member.

[Explanation of symbols]

 1 Ear Tip Rod 1B Opening 3 Expandable Rod Material 3B Opening 4 Hand Side Rod Material 4A Introducing Hole 8 Position Holding Part a Fishing Line

Claims (5)

(57) [Claims] 1. An expandable rod material (3) which is provided with a fishing line introducing hole (4A) on an outer surface of the rod material (4) on the hand side and is retractably accommodated in the rod material (4) on the hand side. An opening (3B) that allows the fishing line (a) to be introduced into the elastic rod material (3) is formed at the rear end of the elastic rod material (3), and the elastic rod material (3) is extended in the expanded state. 3) A through-rod having a rear end fitted to the inner surface of the front portion of the rod member (4) on the proximal side so as to maintain an expanded state, wherein the expansion rod member (3) contracts. In the state, the introduction hole (4A)
And the expansion rod material at a position where the opening and the opening (3B) are close to each other.
The position holding part (8) that determines the contracted position of (3) is
Position on the front side of the opening (3B) in the wire rod (3)
And the position holding portion (8)
The first state set to the position and the expansion rod material (3)
Enter the rod material (4) closer to the hand side than the contracted position
The middle fishing rod is configured to be switchable to the second state which allows it to be removed. 2. The position-holding portion (8) is a contact member that contacts the tip of the rod material (4) on the hand side in a contracted state of the elastic rod material (3). The hollow rod according to claim 1, which is detachable from the material (3). 3. The expansion rod material (3) according to claim 1.
At the rear end of the tip rod (1) that can be retracted inside the
An opening (1B) that allows the introduction of the fishing line (a) into the inside of the tip rod (1) is formed, and the opening (1B) of the tip rod (1) is opened in the contracted state of the tip rod (1). A centering rod in which a holding mechanism (9) for holding the tip rod (1) is formed so as to determine a contraction position at a position close to the opening (3B) of the elastic rod material (3). 4. The threading rod according to claim 1, wherein the thread introduction hole (4A) is a long hole whose major axis direction is set along the axial direction of the pole. 5. The position holding portion (8) contacts the inner peripheral surface of the rod material (4) on the hand side in the contracted state of the expandable rod material (3) to expose the first state. And the elastic part
The hollow rod according to claim 1, which is a bulging portion that allows the material (3) to transition to the second state .