JP2001017036A - Bottom plug for fishing rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bottom plug for a fishing rod that prevents the water penetrating into the rod tube from flowing out toward the angler in no need of complicated operations to open and close a continuous hole visually. SOLUTION: In the main body of the tail plug 2, a continuous hole 2a is bored so that it may pass through the tail plug 2 and open on the outer peripheral surface of the plug. A rotor 3 is rotatably provided on the inner peripheral face of the main body of the tail plug 2, and the rotor 3 has a through-hole 3a bored. The continuous hole 2a and the through-hole 3a are connected and disconnected switchably by the rotation of the rotor 3. The switching operator 4 is fixed integrally with the rotor 3 and a shaft cylinder 4b having a polygonal cross section at its outer periphery is provided at the switching operator 4. A rubber-made rotation controller 5 is not-rotatably set to the main body of the tail plug and the bearing 5b having the inner periphery of the cross section almost the same shape as the outer periphery of the shaft cylinder 4b is formed in the rotation controller 5 and the shaft cylinder 4b is inserted into the bearing part 5b and connected every time when the shaft cylinder 4b rotates by a prescribed angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing rod tail plug, and more particularly to a fishing rod tail plug for selectively opening and closing a communication hole formed in the fishing rod for draining water from the fishing rod.

[0002]

2. Description of the Related Art A fishing rod tail plug described in Japanese Utility Model Laid-Open Publication No. 7-53847 has a tail plug main body and an opening / closing operation section. The buttocks main body has one end open and fixedly connected to the rear end of the original rod, the other end forming a wall, and an opening and closing operation unit connected to be freely rotatable. A plurality of communication holes are formed in the wall so as to extend in the axial direction of the original rod and penetrate therethrough.
A central hole is formed through. The opening / closing operation section is formed in a thin plate shape, and a shaft portion is provided at a center portion thereof which is freely rotatably supported in a center hole, and a plurality of through holes are formed in a thin plate portion around the shaft portion. Are formed so as to extend in the axial direction. The communication hole and the through hole are for enabling communication between the inside of the tail plug main body and the outside air.

[0003] When the communication hole of the buttocks main body and the communication hole of the opening and closing operation part are aligned with each other by the rotation operation of the opening and closing operation part, the inside of the buttocks main body, and eventually the inside of the original rod, communicates with the outside air. Therefore, water, dust and the like that have entered the inside of the original rod can be discharged to the outside through the circulation holes. Further, in the case of a swing type fishing rod, since air flows in and out of the circulation hole when swinging and storing the rod tube, these operations can be performed quickly and smoothly. In addition, when the communication hole of the buttocks main body and the communication hole of the opening / closing operation unit do not match each other, the inside of the buttocks main body is not in communication with the outside air. At this time, water, dust and the like inside the former rod are prevented from flowing toward the angler.

[0004]

However, in the conventional fishing rod butt plug, since the communication hole is provided on the rear end face of the butt plug body, the communication hole is opened during actual fishing. In this case, there is a problem that water, dust, and the like that have entered the former rod flow out to the angler. In addition, a thin plate having a through-hole formed as an opening / closing member is freely rotatably provided on the buttocks plug main body, and the opening / closing is performed by matching / mismatching the communication hole of the wall with the through-hole of the opening / closing operation unit. In addition, the position of the communication hole and the position of the through hole must be visually checked, and the operation is complicated. Furthermore, since the opening / closing operation unit is freely rotatable with respect to the buttocks main body, and there is no mechanism for fixing the rotation position, the opening / closing operation unit may rotate and water or the like may flow out. .

Accordingly, the present invention does not require the complicated operation of opening and closing the communication hole by visual observation without water or dust entering the inside of the original rod leaking to the angler. It is an object of the present invention to provide a fishing rod butt plug capable of holding a rotating position of a part.

[0006]

In order to achieve the above object, the present invention provides a tail plug main body 2 fixed to the rear end of a main rod,
An opening / closing operation unit 4 rotatably provided on the butt-plug main body 2, and a communication hole 2 a that allows communication between the inside of the butt-plug main body 2 and the outside air is formed in the butt-plug main body 2; Opening / closing operation unit 4
The communication hole 2a provided in the butt-plug main body 2 can be selectively switched between a communicating state and a non-communicating state by the operation described above, and the butt-plug main body 2 is switched by switching between the communicating and non-communicating state of the communicating hole 2a.
In a fishing rod butt-plug where the inside and outside air are connected or cut off, the communication hole 2a is formed to open to the outer peripheral surface of the butt-plug main body 2, and the opening / closing operation section 4 is provided with a predetermined Fishing rod butt plug 1 configured to be lockable at each angle and capable of alternately switching between a communicating state and a non-communicating state each time the opening / closing operation unit 4 is locked.
Is provided.

The opening / closing operation section 4 has a shaft cylinder 4b.
The outer peripheral surface of the shaft tube portion 4b is formed in a regular polygonal column shape, and the tail plug main body 2 is formed with a regular polygonal column-shaped shaft tube receiving portion 5b having substantially the same shape as the outer peripheral surface of the shaft tube portion 4b. It is preferable that an elastically deformable portion 5 is provided, and the shaft cylinder portion 4b is attached to the shaft cylinder receiving portion 5b so as to be intermittently rotatable while elastically deforming the elastically deformable portion 5.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A fishing rod tail plug according to an embodiment of the present invention will be described with reference to FIGS. The upper half of FIG. 1 shows a cross section of the fishing rod tail plug 1, and the lower half of FIG. 1 shows a side surface of the fishing rod tail plug 1. Fishing rod tail plug 1 shown in FIG.
Is fixed to the rear end of a fishing rod (not shown). Butt plug for fishing rod 1
Is provided with a butt plug body 2, a rotating body 3, an opening / closing operation unit 4, a rotation amount control member 5 as an elastic deformation unit, and an O-ring 6.

The butt-plug main body 2 is a substantially cylindrical member, and an annular rubber body engaging groove 2b is formed on the outer peripheral surface of the cylindrical wall from the rear end toward the front end (rod end). , An annular O-ring engaging groove 2c and a screw-shaped groove 2d are sequentially formed. The threaded groove 2d is for screwing a threaded groove (not shown) formed on the inner peripheral surface of the rod tube end to connect the fishing rod tail plug 1 to the rod tube end. is there. An annular rubber body 8 having a shape complementary to the rubber body engaging groove 2b is fitted into the rubber body engaging groove 2b. The tail plug main body 2 and the rubber body 8 are integrated by insert molding. The rubber body 8 extends along the axial direction of the tail plug main body 2 so as to protrude from the end face of the tail plug main body 2 opposite to the rod pipe in the direction opposite to the rod pipe, and has a substantially cylindrical space 8 ′ on the inner peripheral side. Is defined. The O-ring 6 is mounted in the O-ring engaging groove 2c. The O-ring 6 presses the buttocks plug body 2 inward in the radial direction near the O-ring engaging grooves 2c and relatively urges the vicinity of the threaded grooves 2d of the buttocks plug body 2 to radially outward. Then, the threaded groove 2d is pressed against the rod pipe to prevent water or the like from entering the rod pipe through the rod pipe end. A fixing portion 5 of a rotation amount control member 5 to be described later is provided on an inner peripheral surface near the rod-side end of the buttocks plug body 2.
The claw receiving portion 2e for engaging with the claw portion 5c 'of FIG.

Communication holes 2a penetrating the cylindrical wall of the buttocks plug body 2 in the radial direction are radially formed at eight locations at equal intervals in the circumferential direction (FIG. 4). Each communication hole 2a has a cylindrical shape with the central axis in the radial direction of the tail plug main body 2, and all the communication holes 2a have the same diameter. On the inner peripheral surface side of the butt-plug main body, a hollow cylindrical rotator 3 having a substantially cylindrical shape coaxial with the butt-plug main body 2 is provided.
It is rotatably provided in sliding contact with the inner peripheral surface of the buttocks main body 2.
The rotating body 3 has a through hole 3a extending in the radial direction and penetrating the rotating body 3 and capable of communicating with the communication hole 2a of the buttocks main body 2.
It is radially formed at eight locations at equal intervals in the circumferential direction (FIG. 4). Each of the through holes 3a has a cylindrical shape whose central axis is in the radial direction of the buttocks main body 2 (radial direction of the rotating body 3), and all the through holes 3a have the same diameter as the communication holes 2a of the buttocks main body 2. . Therefore, when the communication hole 2a and the through-hole 3a coincide on the same axis, the hollow portion of the rotating body 3 and the outside air communicate with each other via the through-hole 3a and the communication hole 2a. A claw portion 4 of a rotating body fixing portion 4c of the opening / closing operation portion 4 described later is provided on an inner peripheral surface of the rotating body 3.
A claw receiving portion 3b for engaging with c 'is recessed.

An opening / closing operation section 4 for manually rotating the rotating body 3 is provided integrally with the rotating body 3. The opening / closing operation section 4 has a lid 4a, a shaft cylinder 4b, and a rotating body fixing section 4c. The lid 4 a is provided on the end surface of the tail plug main body 2 farthest from the rod pipe, and has a disk shape with the axis of the tail plug main body 2 as a central axis. The end face of the lid 4a on the rod tube side, wherein the lid 4
A annular groove 4d is formed in the vicinity of the peripheral edge, and O is provided in the annular groove 4d for sealing between the lid 4a and the tail plug main body 2.
A ring 7 is mounted. On the end face of the lid 4a on the side opposite to the rod tube, there is provided a gripping portion 4e which extends linearly over the diameter of the lid 4a and protrudes in the axial direction of the tail plug main body 2. The grip portion 4e is provided so as to fit in the space 8 'of the rubber body 8 described above.

The shaft cylinder portion 4b has a cylindrical shape with an outer periphery provided integrally with the lid 4a and having a regular hexagonal cross section, and has sixteen flat surfaces 4b-1 to 4b-parallel to the axial direction of the tail plug main body 2. 16 and extends from the lid 4a in a direction approaching the rod pipe. The center line of gravity of the peripheral surface of the shaft tube portion 4 b is arranged so as to coincide with the axis of the buttocks main body 2. The rod tube side end of the shaft tube portion 4b is fitted into a shaft tube receiving portion 5b of a rotation amount control member 5 described later. or,
Since the maximum diameter of the barrel 4 b is smaller than the diameter of the inner peripheral surface of the rotating body 3, a space is defined between the outer periphery of the barrel 4 b and the inner peripheral surface of the rotating body 3.

The rotating body fixing portion 4c has a cylindrical shape provided concentrically with the shaft cylindrical portion 4b and integrally with the lid 4a on the outer peripheral surface side of the shaft cylindrical portion 4b. It extends in the direction of approach. A claw portion 4c 'extending radially outward from the axial center of the rotating body fixing portion 4c is provided on the outer peripheral surface of the tip of the rotating body fixing portion 4c. The claw portion 4c 'engages with the claw receiving portion 3b formed on the inner peripheral surface of the rotating body 3, and the opening / closing operation section 4 and the rotating body 3
And are integrally connected. With this configuration, the rotating body 3 rotates integrally with the opening / closing operation section 4 with respect to the buttocks plug main body 2 as the opening / closing operation section 4 rotates.

A rotation amount control member 5 is fixed to the end of the tail plug main body 2 on the side of the rod pipe. The rotation amount control member 5 has a substantially disk-shaped lid 5a coaxial with the central axis of the tail plug main body 2, a shaft tube receiving portion 5b, and a fixed portion 5c, and is made of an elastically deformable material such as rubber. It is. The lid 5a is formed with two flow holes 5d penetrating the lid 5a in the axial direction.

The shaft tube receiving portion 5b has a cylindrical shape, and extends in a direction away from the rod tube from a side of the cover 5a opposite to the rod tube.
The inner peripheral surface of the shaft tube receiving portion 5b has a regular hexagonal cross section, and 16 planes 5b-1 to 5b-1 parallel to the axis of the shaft tube portion 4b.
6. The inner peripheral surface of the shaft tube receiving portion 5b has the same shape as the outer peripheral surface of the shaft tube portion 4b of the opening / closing operation portion 4, and the end of the shaft tube portion 4b of the opening / closing operation portion 4 is fitted inside the shaft tube receiving portion 5b. You. Since the rotation amount control member 5 is elastically deformable, the shaft cylinder portion 4b
Is rotatable intermittently with respect to the barrel receiving portion 5b against the elastic force of the barrel receiving portion 5b. Specifically, when the planes 4b-1 to 4b-16 forming the outer peripheral surface of the barrel 4b face any one of the planes 5b-1 to 5b-16 forming the barrel receiver 5b, the rotation amount is increased. The rotational position of the shaft tube 4b with respect to the shaft tube receiver 5b is fixed without opposing the elastic force of the shaft tube receiver 5b of the control member 5. At this time, in the present embodiment, the plane 4b-1 is the plane 5b-1, 3, 5, 7, 9, 1
When facing any one of 1, 13, and 15, the communication hole 2a formed in the buttocks main body 2 communicates with the through hole 3a formed in the rotating body 3, and the position is maintained. On the other hand, the plane 4b-1 is the plane 5b-2, 4, 6, 8, 10, 12, 1
When facing either of 4 and 16, the communication between the communication hole 2a and the through hole 3a is interrupted, and the position is maintained. Further, switching between the communication position and the blocking position is performed by forcibly rotating the opening / closing operation unit 4 against the elastic force of the shaft tube receiving portion 5b,
This is possible by elastically deforming the shaft tube receiving portion 5b.

The fixing portion 5c has a cylindrical shape coaxial with the lid 5a, and extends in a direction away from the rod pipe from near the peripheral end of the lid 5a on the side opposite to the rod pipe. On the outer peripheral surface of the fixing portion 5c,
A claw portion 5c 'extending outward in the radial direction is provided so as to protrude therefrom.
c ′ elastically engages with the claw receiving portion 2 e formed near the rod-side end of the inner peripheral surface of the buttocks main body 2, and makes the rotation amount control member 5 unable to rotate with respect to the buttocks main body 2. Fix it.

The operation of the fishing rod butt plug 1 according to the embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 3, a flat surface 4 forming an outer peripheral surface of the shaft cylinder portion 4b is formed.
When b-1 is in contact with the flat surface 5b-1 forming the shaft tube receiving portion 5b, as shown in FIG. 4, the communication hole 2a formed in the buttocks plug main body 2 and the rotating body 3 are formed. Through hole 3
a is in communication.

Here, when the angler grips the gripping portion 4e and operates the opening / closing operation portion 4 to rotate it clockwise as shown in FIGS. 2 to 5, the shaft cylinder portion 4b having a regular hexagonal cross section becomes a regular hexagonal sectional shape. While rotating the shaft tube receiving portion 5b elastically against the elastic force of the shaft tube receiving portion 5b, it rotates integrally with the opening / closing operation portion 4, and the rotating body 3 integrated with the opening / closing operation portion 4 also rotates clockwise. To rotate. When the opening / closing operation part 4 and the rotating body 3 rotate 1/16 integrally, the plane 4b-1 of the shaft cylinder part 4b of the opening / closing operation part 4 becomes the plane 5b-2 of the shaft cylinder receiving part 5b of the rotation amount control member 5. And the contact force between the plane 4b-1 and the plane 5b-2,
The clockwise rotation of the opening / closing operation unit 4 and the rotating body 3 temporarily stops. When the plane 4b-1 comes into contact with the plane 5b-2 in this way, as shown in FIG. 5, the communication between the communication hole 2a formed in the buttocks main body 2 and the through hole 3a formed in the rotating body 3 is established. Will be shut off.

Further, when the angler grips the grip 4e and applies a clockwise rotation force to the opening / closing operation section 4 as shown in FIGS. 2 to 5, the opening / closing operation section 4 and the rotating body 3 are further integrated into 1/16. It rotates, and the plane 4b-1 of the shaft cylinder 4b of the opening / closing operation section 4 comes into contact with the plane 5b-3 of the shaft cylinder receiving section 5b of the rotation amount control member 5, and stops rotating. That is, the opening / closing operation unit 4 and the rotating body 3 are rotated by ８ of the initial state. When the flat surface 4b-1 comes into contact with the flat surface 5b-3 in this manner, as in the state shown in FIG.
a communicates with the through hole 3 a formed in the rotating body 3.

In both cases of the communication between the communication hole 2a and the through hole 3a and the non-communication state, the shaft cylinder portion 4 having a regular hexagonal cross section is used.
Due to the surface alignment between b and the shaft cylinder receiving portion 5b having the same cross-section, the opening / closing operation portion 4 is prevented from freely rotating, and the communication / non-communication state can be prevented from being unexpectedly switched.

When the communication hole 2a of the buttocks plug body 2 and the through hole 3a of the rotating body 3 communicate with each other, that is, the plane 4b-1 on the outer peripheral surface of the shaft cylinder 4b of the opening / closing operation section 4 is controlled by the rotation amount control. The planes 5b-1, 3, 5, 7, of the inner peripheral surface of the barrel receiving portion 5b of the member 5
When in contact with any of the components 9, 11, 13, and 15, water or the like that has entered the inside of the rod pipe (not shown), as shown by the arrow in FIG. Passing through the communication hole 5d of the body 5a,
It is introduced into a space defined between the opening / closing operation unit 4 and the rotating body 3. Then, it is discharged to the outside through the through-hole 3a of the rotating body 3 and the communication hole 2a of the buttocks main body 2.

On the other hand, when the communication hole 2a of the buttocks plug main body 2 and the through hole 3a of the rotating body 3 are not in communication with each other, that is, the flat surface 4b-1 on the outer peripheral surface of the shaft cylinder portion 4b of the opening / closing operation section 4 rotates. Planes 5b-2, 4 on the inner peripheral surface of the barrel receiving portion 5b of the amount control member 5,
6, 8, 10, 12, 14, and 16, the inner opening surface of the communication hole 2a is closed by the outer peripheral surface of the rotating body 5, and the outer opening surface of the communication hole 5a is closed. ,
Since it is closed on the inner peripheral surface of the buttocks main body 2, water or the like that has entered the inside of the rod pipe cannot reach the outside. As described above, the space between the rear end of the rod pipe and the butt plug main body 2 is generated by the urging force of the butt plug main body 2 radially outward generated by the pressing force of the O-ring 6 as described above. The O-ring 7 seals the space between the butt-plug main body 2 and the lid 4a of the opening / closing operation section 4, so that water or the like that has entered the inside of the rod pipe is located near the rear end of the rod pipe. There is no leakage from any part other than the communication hole 2a.

The fishing rod butt plug according to the present invention is not limited to the above-described embodiment, but may be any of the following.
Various modifications and improvements are possible. For example, in this embodiment, eight through holes of the buttocks main body are formed at equal intervals, and communication holes of the rotating body are also formed at eight equal intervals. As long as communication is possible, the number is not limited to eight, and the through-holes of the buttocks main body and the communication holes of the rotating body do not necessarily need to be formed at equal intervals. Need not be the same.

Further, in the present embodiment, the outer peripheral surface of the shaft tube portion of the opening / closing operation unit and the inner peripheral surface of the shaft tube receiving portion of the rotation control member are formed by 16 planes having a regular hexagonal cross section. These peripheral surfaces are not limited to such a configuration as long as they have shapes that engage with each other and are rotatable with respect to each other against the elastic force of the material forming the barrel receiving portion. For example, the cross section is not limited to a regular hexagon and may be an arbitrary regular polygon. Alternatively, both the peripheral surfaces may be configured as a circle, and at least one convex portion may be formed on one peripheral surface, and two or more concave portions engaging with the convex portions may be formed on the other peripheral surface. Then, the position where the concave portion and the convex portion are engaged with each other may be set as the communication and non-communication holding positions.

In this embodiment, the opening / closing operation section and the rotating body are formed as separate bodies, and the space therebetween is sealed with an O-ring, and then the rotation section is integrally rotatable. And the rotating body may be integrally formed as one member.

Further, in the above-described embodiment, the butt-plug main body is made of a hard and non-elastically deformable material, and the rotation control member is made of an elastically-deformable elastic body. And the rotation control member may be made of a hard material.

[0027]

According to the fishing rod butt plug according to the first aspect of the present invention, since the communication hole is opened on the side surface of the butt plug main body, water, dust and the like that have entered the rod pipe flow out to the angler. There is no.
The opening / closing operation section is configured to be lockable at a predetermined angle with respect to the buttocks plug main body, and during operation of the opening / closing operation section, it is possible to alternately switch between a communicating state and a non-communicating state every time the opening / closing operation section is locked. This eliminates the need for complicated work such as visually switching the communication hole between the communicating and non-communicating states. Further, the communication position and the non-communication position can be held, respectively, and the rotation of the opening / closing operation unit can be prevented.

According to the fishing rod buttocks of the second aspect, a shaft cylinder portion having a regular polygonal cross section and an elastically deformable portion having a shaft tube receiving portion having the same cross section are provided. The rotational position of the barrel can be held by the surface alignment between the barrel and the barrel receiving part, and the barrel can be forcibly rotated in the barrel receiving part by the elastic deformation of the elastic deformation part. is there. With such a simple configuration, it is possible to reliably lock the opening / closing operation unit at a predetermined angle with respect to the buttocks main body. Furthermore,
With this configuration, durability is also improved.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view and a partial side view of a fishing rod butt plug according to an embodiment of the present invention.

FIG. 2 is a front view showing the buttocks for a fishing rod according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of the buttocks for fishing rods according to the embodiment of the present invention, taken along line III-III of FIG. 1;

FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 1 showing a state in which the communication hole of the butt plug body of the butt plug for a fishing rod and the through hole of the rotating body communicate with each other according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view taken along the line IV-IV in FIG. 1 showing a state in which communication between the communication hole of the butt plug body of the fishing rod butt plug and the through-hole of the rotating body is cut off according to the embodiment of the present invention; .

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fishing rod tail plug 2 tail plug main body 2a communication hole 3 rotating body 3a through hole 4 opening and closing operation part 4b shaft cylinder part 5 rotation amount control member 5b shaft cylinder receiving part

Claims (2)

[Claims] 1. A butt-plug main body fixed to a rear end of a former rod, and an opening / closing operation section rotatably provided on the butt-plug main body,
A communication hole that allows communication between the inside of the tail plug main body and the outside air is formed in the tail plug main body, and the communication hole provided in the tail plug main body is communicated / non-communicated by operating the opening / closing operation unit. The connection hole can be selectively switched, and the communication hole is connected to or shut off from the inside of the tail plug main body and the outside air by switching between the communication state and the non-communication state. The opening / closing section is formed so as to be openable on the outer peripheral surface, and can be locked at a predetermined angle with respect to the buttocks main body, and can be switched between a communicating state and a non-communicating state alternately every time the opening / closing section is locked. A tail plug for a fishing rod, characterized in that 2. The opening / closing operation section has a barrel portion, and the outer peripheral surface of the barrel portion is formed in a regular polygonal column shape, and the butt plug body has substantially the same shape as the outer peripheral surface of the barrel portion. An elastic deformation portion provided with a regular polygonal prism-shaped shaft tube receiving portion is provided,
The butt plug for a fishing rod according to claim 1, wherein the shaft tube portion is attached to the shaft tube receiving portion so as to be intermittently rotatable with the elastic deformation of the elastic deformation portion.