JP2008200003A - Butt cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a butt cap and telescopically extendable rod, inhibiting the invasion of sands, etc., into rod bodies while maintaining the elongation and contraction operations of each of the rod bodies of the telescopically extendable rod smoothly. <P>SOLUTION: This butt cap is equipped with a mounting tubular shaft part 6A to be mounted in the opening part of end of a base rod 1 and a tab part 6B formed at the one end of the mounting tubular shaft part 6A. The inside space of the mounting tubular shaft part 6A is opened to its outside through an opening 6b formed at the reverse side to the tab part-presenting side of the mounting tubular shaft part 6A. A penetrated hole 6c for communicating with the inside space is formed at a male screw part 6C of the mounting tubular shaft part 6A. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bottom plug for a fishing rod or a ball handle.

In a conventional butt plug, a male screw portion as a mounting cylinder shaft portion mounted in a butt end opening portion of a housing and a cylindrical main body portion as a knob formed at one end of the male screw portion are provided. A through hole along the axial direction is formed in the main body so that the internal space of the mounting cylinder shaft is opened to the outside through an opening formed on the side of the mounting cylinder shaft opposite to the knob side. And the opening connected to the said through-hole is formed in the base side end surface of a main-body part, and the opening is covered with the net-like member (refer patent document 1).
With such a configuration, when the small-diameter housing is taken in and out of the large-diameter housing, the air can enter and exit from the internal space of the large-diameter housing, so that the small-diameter It has a structure that allows the body to be taken in and out smoothly.

JP-A-2000-157113 (publication column 3, line 30 to column 3, line 35 and FIG. 4)

  In the above configuration, since the opening is formed at the base side end of the bottom plug, even if a net-like member is provided, sand or the like can easily enter through the net-like member, and the base rod is raised to the fishing ground. When standing up, the mesh member is easily damaged, and there is room for improvement.

  An object of the present invention is to provide a bottom plug that can suppress the intrusion of sand or the like into the housing while smoothly maintaining the expansion and contraction operation of each housing in the swinging basket or ball handle.

〔Constitution〕
The characteristic configuration of the invention according to claim 1 includes an attachment cylinder shaft portion that is mounted in the bottom end opening of the base rod of the swing-out type housing group, and a knob portion that is formed at one end of the attachment cylinder shaft portion. And opening the internal space of the mounting cylinder shaft portion to the inside of the housing through an opening formed on the side opposite to the knob portion existing side, and forming a through-hole communicating with the internal space on the peripheral surface of the mounting cylinder shaft portion. The function and effect are as follows.

[Action]
Through the through hole, the internal space of the bottom plug and the internal space of each housing such as the main rod can flow air to and from the space outside the housing, so that each housing can be smoothly inserted and removed.
In addition, for this purpose, the through hole is provided not on the knob part located on the butt end side of the butt plug, but on the mounting cylinder shaft part located on the tip side of the knob part, so that it is difficult for sand to enter. Even if the butt plug is grounded to the fishing ground and installed in a state where the ridge is leaned, the butt plug is hardly damaged.

〔effect〕
Accordingly, it is possible to provide a bottom plug that is less likely to be sanded or damaged by the sand plug while it is possible to configure a swing basket or a ball handle that can be easily inserted and removed.

  A characteristic configuration of the invention according to claim 2 is configured such that a male screw portion is formed on the mounting cylinder shaft portion so as to be screwable to the bottom end opening portion of the housing, and the through hole is formed on the male screw portion. The function and effect are as follows.

[Function and effect]
In addition to the operational effects of the first aspect, the following operational effects are achieved. By separating the knob portion from the butt end of the marshal rod, the through hole formed in the male screw portion can be exposed to the outside of the marshal rod, and the circulation with the outside air can be easily performed.
In this case, by adjusting the distance of the knob portion with respect to the heel end of the marshal ridge, the area facing the outside of the through hole can be adjusted, and the amount of circulation with the internal space of the butt plug can be adjusted.
In addition, by forming the through hole in the male screw portion, it is not necessary to provide a cylindrical portion that does not form the male screw portion in order to form the through hole, and the bottom plug structure can be simplified.

  According to a third aspect of the present invention, a male screw portion is formed on the mounting cylinder shaft portion, and the male screw portion and the knob portion are configured so as to be screwable to the bottom end opening of the housing. A cylindrical portion is formed between the cylindrical portion and the through hole is formed on the peripheral surface of the cylindrical portion. The operational effects are as follows.

[Function and effect]
When the knob portion is separated from the butt end of the marshall, the through-hole formed in the cylindrical portion faces outward from the butt end of the marshal and allows air to flow into the inner space of the butt plug. .
In addition, since the through hole is formed in the cylindrical portion where the male screw is not formed, the function of the male screw is hardly impaired, and the butt plug can be easily attached and detached.

  According to a fourth aspect of the present invention, a male screw part is formed on the mounting cylinder shaft part, and the male screw part and the knob part are configured so as to be able to be screwed to the bottom end opening of the housing. A cylindrical portion is formed between the cylindrical portion, the through hole is formed across the peripheral surface of the cylindrical portion and the male screw portion, and the cylinder is formed on the surface of the knob portion facing the mounting cylindrical shaft portion. The guide groove that leads to the shape portion is formed, and the function and effect thereof are as follows.

[Function and effect]
Since the through hole is formed over the male screw portion and the cylindrical portion, the through hole can be secured with a large area. In addition, since the cylindrical portion is formed on the mounting cylinder shaft portion, an air flow passage can be formed between the cylindrical portion and the inner circumferential surface of the main shaft, and the attachment cylinder of the knob portion toward the flow passage can be formed. Air can be introduced through a guide path provided on the surface facing the shaft portion.
By forming the air passage such as this, even if the face toward the mounting cylinder shaft part of the knob is attached to the back and the sticking part is in close contact with the end face of the buttock, the end face of the buttock The guide path is separated and air can be guided, and air can be introduced without causing loosening of the bottom plug.

  The characteristic configuration of the invention according to claim 5 is that the adjusting cylindrical body is inserted and arranged inside the mounting cylindrical shaft portion so as to be rotatable around the axis of the mounting cylindrical shaft portion, and the adjusting cylindrical shape is arranged. A communication hole is formed in the peripheral surface of the body, and the internal space of the adjustment tubular body is communicated outward through a portion where the through hole and the communication hole overlap in the circumferential direction, The effects are as follows.

[Function and effect]
Outside air can be circulated to the internal space of the main shaft through the portion where the through hole and the communication hole overlap and the internal space of the adjusting cylindrical body. Then, by rotating the adjustment cylindrical body around the axis, the area of the overlapping portion can be changed, and the flow rate can be adjusted.
In this way, the amount of circulation can be finely adjusted by positively introducing the adjusting cylindrical body. In addition, as described above, there is no need to loosen the bottom plug in order to adjust the flow rate, and inconveniences such as losing the bottom plug can be avoided.

  A characteristic configuration of the invention according to claim 6 is that it is a swinging rod provided with the bottom plug according to any one of claims 1 to 5, and the function and effect thereof are as follows.

[Function and effect]
Thus, by modifying the bottom plug, it has become possible to provide a fishing rod that can be easily extended and contracted.

  A characteristic configuration of the invention according to claim 7 is that it is a ball handle provided with the bottom plug according to any one of claims 1 to 5, and the function and effect thereof are as follows.

[Function and effect]
In this way, by modifying the bottom plug, it has become possible to provide a ball handle that can be easily expanded and contracted.

[First Embodiment]
A description will be given based on a telescopic heel A such as a heel. As shown in FIG. 1, a fishing rod is configured by arranging an original rod 1, an upper portion 2, an upper portion 3, and other middle rods and head rods (not shown).
As shown in FIG. 1, a rubber retaining ring 4 is attached to the inside of the buttock side end portion of the base rod 1, and a seat rubber 5 for receiving a buttock end such as a pointed heel is installed inside the holding ring 4. The bottom plug 6 is disposed on the buttocks side of the seat rubber 5.

  The expansion / contraction structure of the main fence 1 and the upper 2 will be described. As shown in FIGS. 1 and 2, a fitting seat surface 4 </ b> A for internally fitting the upper butt side large-diameter bulging portion 2 </ b> B is formed on the heel side from the mounting position of the seat rubber 5 on the holding ring 4. At the same time, the tip side inner peripheral surface 1A of the base rod 1 should be fitted inside the tip side inner peripheral surface 1A of the base rod 1 and the tip side inner peripheral surface 1A of the base rod 1 The base rod 1 is configured so as to fit the heel end side large-diameter bulge portion 2B.

By adopting the above-described configuration, as shown in FIG. 1 (a), the heel-end side large-diameter bulge portion 2B of the original 2 is internally fitted and held on the fitting seat surface 4A of the holding ring 4, By fitting the heel side large-diameter bulged portion 2A of the upper 2 to the heel side inner peripheral surface 1A of the heel 1, the upper 2 is held in a contracted state.
As shown in FIG. 1 (b), the base 2 is held in an expanded state by fitting the heel-side large-diameter bulging portion 2 </ b> B of the base 2 to the tip-side inner peripheral surface 1 </ b> A of the base 1. To do.
Accordingly, the base 2 is configured to be extendable and contractible with respect to the base 1 in two states, a contracted state and an extended state, thereby forming a telescopic type A.

  The bottom plug 6 will be described. As shown in FIGS. 1 to 3, the bottom plug 6 is formed at an end of the mounting cylinder shaft portion 6 </ b> A and a mounting cylinder shaft portion 6 </ b> A that is screwed into a bottom end opening of the main shaft 1 as a casing. And a knob 6B. The internal space 6a of the mounting cylinder shaft portion 6A is opened to the inside of the housing through an opening 6b formed on the opposite side of the mounting cylinder shaft portion 6A from the knob portion existence side, and the male screw portion 6C of the mounting cylinder shaft portion 6A. A through hole 6c communicating with the internal space 6a is formed on the peripheral surface of the inner space 6a.

  With the configuration of the butt plug 6 as described above, the butt plug 6 is loosened with respect to the retaining ring 4 as shown in FIGS. In this state, the through hole 6c is positioned between the hook 4B and the knob 6B at the rear end of the holding ring 4, and the outer space of the fishing rod and the inner space 6a of the bottom plug 6 are checked through the through hole 6c. In this way, the interior space of the fishing rod such as the original rod 1 and the upper 2 can be communicated.

By adopting the configuration as described above, when the air is trapped in the internal space 6a of the fishing rod and butt plug 6 and the original 2 contracts, the trapped air is compressed and exerts a large resistance pressure. This can be suppressed. That is, the air located in the internal space 6a of the butt plug 6 is originally subjected to the contraction operation 2 and can escape from the through hole 6c to the external space, and the air is not confined.
Therefore, the original 2 contraction operation is performed smoothly.

  On the other hand, when the extension operation is performed, the internal pressure is reduced due to the expansion of the internal space, and the degree of resistance to the extension operation of the original 2 increases due to the influence of air pressure. Outside air can be introduced into the internal space 6a through the through-hole 6c formed in the stopper 6, and the internal space 6a does not become negative pressure.

[Second Embodiment]
(1) An embodiment of the bottom plug 6 will be described. As shown in FIG. 3, the attachment cylinder shaft portion 6A and the knob portion 6B are formed, and the male screw portion 6C is formed on the attachment cylinder shaft portion 6A. A cylindrical portion 6D without a screw is formed between the male screw portion 6C and the knob portion 6B, and the through hole 6c is formed on the peripheral surface of the cylindrical portion 6D.
Thereby, the through-hole 6c can be formed in the cylindrical part 6D in which the screw is not formed, and the influence on the manufacturing with respect to the screw can be suppressed.

[Third Embodiment]
As shown in FIGS. 4A and 4B, in order to form the through hole 6c in the bottom plug 6, the through hole 6c is formed from the male screw portion 6C to the cylindrical portion 6D. Here, the outer diameter of the cylindrical portion 6D is made smaller than the outer diameter of the male screw portion 6C.
With such a configuration of the through hole 6c, as shown in FIG. 4 (a), the outer peripheral surface of the cylindrical portion 6D and the female screw portion of the holding ring 4 can be obtained by slightly loosening the bottom plug 6 with respect to the holding ring 4. Air is introduced into a relatively wide space with 4a, and air is easily introduced into the bottom plug 6 through the through hole 6c.
When air is introduced into the through-hole 6c with the knob 6B of the buttocks 6 in contact with the flange 4B of the retaining ring 4, as shown in FIGS. A notch-concave guide groove 6d may be formed in a part in the circumferential direction of the surface of the knob 6B of the stopper 6 that contacts the flange 4B of the retaining ring 4.
If it does so, even if it is the state which makes the knob | pick part 6B closely_contact | adhere to the collar part 4B, the internal space 6a of the bottom plug 6 can be connected outside via the guide groove 6d, and it is not necessary to loosen the bottom plug 6.

[Fourth Embodiment]
An embodiment of the bottom plug 6 will be described. Here, a double structure is adopted as the structure of the bottom plug 6 so that the degree of opening to the outside air can be adjusted. As shown in FIGS. 5 (a) and 5 (b), a through hole 6c is formed in the male thread portion 6C of the bottom plug 6, and an adjustment cylindrical body 6E is provided in the internal space 6a of the bottom plug 6 in the internal space 6a. It is inserted so as to be rotatable around the shaft core of the bottom plug 6 while being in close contact with the peripheral surface.

  A communication hole 6e for introducing air is formed in the peripheral surface of the adjustment cylindrical body 6E, and a blocking wall 6f for closing the butt end of the adjustment cylindrical body 6E is formed. The peripheral portion extends in a flange shape and is fitted and held in the knob portion 6B of the bottom plug 6. Two recesses are formed on the rear surface of the closed end 6f, and the adjusting cylindrical body 6E can be rotated by grasping a rib portion 6g standing between the two recesses with a thumb and an index finger. Configure.

With the configuration as described above, when the adjustment cylindrical body 6E is mounted in the internal space 6a of the bottom plug 6, the communication hole 6e formed in the adjustment cylindrical body 6E and the through hole 6c of the bottom plug 6 match. In this case, the internal space of the adjustment tubular body 6E and the external space of the bottom plug 6 are in communication with each other.
When the adjustment cylindrical body 6E is rotated by holding the rib portion 6g and the overlap margin between the communication hole 6e and the through hole 6c is reduced, the communication state is directed toward the closing direction and the overlap margin is increased. When it disappears, the communication state is canceled.
Since the communication state can be eliminated in this way, adjustment corresponding to a situation where the wind is strong and dust easily enters can be made.

[Another embodiment]
(1) Here, a state in which the present invention is applied to the ball handle B will be described. As shown in FIG. 7, a ball net 8 is attached to the tip of the heel tip 7 through a rubber band, and a plurality of center rods 9 are continuously connected by a swinging method. 11 is attached. The bottom plug 11 is provided with a through hole similar to that provided in the first embodiment.
By adopting such a structure of the bottom plug 11, the internal space of the housing such as the main shaft does not become a closed space, and the following problems can be solved.

  In other words, when the storage space of the frame becomes a closed space, when the fish is hooked and pulled toward the foot side and the ball net 8 is to be inserted and picked up, the ball pattern B is quickly shaken back and forth with a short stroke. Try to stretch 8 to the surface. In that case, as described above, when the internal space of the enclosure becomes a closed space, the inside of the closed space becomes a negative pressure due to the movement of the enclosure toward the tip side. It receives pressure that is pushed back by the difference from atmospheric pressure. For this reason, as described above, even if the ball net 8 is operated to extend to the water surface, the respective casings do not fully extend, and it may be difficult to pull out the ball net 8.

  Therefore, as described above, by providing a through-hole in the bottom plug 11, the negative pressure state in each chassis is eliminated, the chassis can be smoothly extended, and fishing operations can be performed smoothly.

(2) Instead of the bottom plug 6 shown in FIGS. 1 and 2, the following bottom plug 6 may be used. As shown in FIG. 6, a cylindrical portion slightly smaller in diameter than the maximum diameter portion of the knob portion 6B is formed on the surface of the knob portion 6B formed at one end of the attachment cylinder shaft portion 6A, which faces the attachment cylinder shaft portion 6A. In addition, as shown in FIG. 6, the cylindrical portion is configured to come into contact with the flange portion 4 </ b> B of the holding ring 4 in a state where the bottom plug 6 is tightly tightened to the back.
In such a configuration, the through hole 6c is formed in the male screw portion 6C, and is formed not only on the male screw portion 6C but also in a range reaching the cylindrical portion of the knob portion 6B. In the cylindrical part, the guide groove part is formed in a state of being recessed on the surface of the holding ring 4 in contact with the flange part 4B, and the air can be guided to the through hole 6c.
With such a configuration, air can be introduced through the guide groove portion even in a state where the butt plug 6 is tightly tightened to the back, and a useful mechanism for introducing air into the housing can be obtained.

  (3) The hook on which the above-described bottom plug 6 is attached is not necessarily limited to the telescopic hook, and may be a swinging hook.

(4) The number and shape of the through holes 6c formed in the bottom plug 6 can be arbitrarily selected.
(5) As a configuration for attaching the bottom plug 6 to the holding ring 4, a configuration in which it is screwed with the male screw portion 6 </ b> C is adopted, but it may be attached in a state of being pressed.

(B) A vertical side view showing a state where the bottom end of the telescopic heel is attached to the base with the base of the telescopic heel stored in the base, (b) A state where the top of the telescopic heel is pulled out from the base In the vertical side view showing the state that the bottom plug attached to the marshal is loosened and pulled backward Longitudinal side view showing a state in which the bottom plug formed with a through hole in the male screw part is loosened and pulled backward Longitudinal side view showing another embodiment structure in which a through hole is formed in the cylindrical portion of the bottom plug (A) A longitudinal side view showing a state in which a bottom plug having a through hole formed between the cylindrical part and the male screw part is attached to the main shaft, and (B) the through hole is extended between the cylindrical part and the male screw part. Perspective view showing the butt plug formed (A) A longitudinal side view showing a state in which the adjustment cylindrical body is provided in the butt plug, (b) a perspective view showing a state before the adjustment cylindrical body is inserted in the butt plug, Longitudinal side view showing another embodiment structure in which a through hole is formed across the male screw portion and the large-diameter cylindrical portion Perspective view showing the handle of the ball

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Margin 6 Bottom plug 6A Mounting cylinder shaft part 6B Knob part 6C Male thread part 6D Cylindrical part 6E Adjustment cylindrical body 6b Opening 6c Through-hole 6e Communication hole

Claims (7)

  An attachment cylinder shaft portion that is mounted in the bottom end opening of the base rod of the swing-out type housing group, and a knob formed at one end of the attachment cylinder shaft portion; A bottom plug that is open to the inside of the housing through an opening formed on the side opposite to the knob-existing side and has a through-hole that communicates with the internal space on the peripheral surface of the mounting cylinder shaft.   2. The butt according to claim 1, wherein a male screw part is formed on the mounting cylinder shaft part so as to be screwable into the butt end opening of the housing, and the through hole is formed in the male screw part. plug.   Forming a male screw part on the mounting cylinder shaft part, and being configured to be screwable to the bottom end opening of the housing, and forming a cylindrical part between the male screw part and the knob part; The bottom plug according to claim 1, wherein the through hole is formed in a peripheral surface of the cylindrical portion.   Forming a male screw part on the mounting cylinder shaft part, and being configured to be screwable to the bottom end opening of the housing, and forming a cylindrical part between the male screw part and the knob part; The through hole is formed across the peripheral surface of the cylindrical portion and the male screw portion, and a guide groove that communicates with the cylindrical portion is formed on a surface of the knob portion that faces the mounting cylindrical shaft portion. The bottom plug according to claim 1.   The adjustment cylindrical body is inserted and arranged inside the attachment cylinder shaft portion so as to be rotatable around the axis of the attachment cylinder shaft portion, and a communication hole is formed in the peripheral surface of the adjustment cylinder body, The bottom plug according to claim 1, wherein the internal space of the adjustment tubular body is communicated outward through a portion where the through hole and the communication hole overlap in the circumferential direction.   A swinging pad provided with the bottom plug according to any one of claims 1 to 4.   A ball handle provided with the bottom plug according to claim 1.

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