JP4010403B2

JP4010403B2 - Butt plug

Info

Publication number: JP4010403B2
Application number: JP2002328494A
Authority: JP
Inventors: 聖比古松本; 一真谷口; 公一川島; 幸信塩谷; 尚太郎谷川
Original assignee: Shimano Inc
Current assignee: Shimano Inc
Priority date: 2002-11-12
Filing date: 2002-11-12
Publication date: 2007-11-21
Anticipated expiration: 2022-11-12
Also published as: JP2004159550A

Description

【０００１】
【発明の属する技術分野】
本発明は、釣竿を構成する竿体の竿元側端部に装着される「尻栓」と呼ばれる栓部材に関する。
【０００２】
【従来の技術】
複数の竿体をいわゆる振出形式に連結して構成されている釣竿にあっては、最も竿元側に位置する元竿の竿元側端部に尻栓が脱着自在に装着されている。振出形式に連結した竿体を分解する際に、元竿の尻栓を取り外し、順次穂先側に位置する竿体を元竿の竿元側端部より取り外す。
【０００３】
このような尻栓にあっては、竿体内部に浸入した水を排除するための水抜き孔を形成したものや（例えば、特許文献１参照）、元竿内に収納される他の竿体が尻栓に当たって破損しないように弾性部材を組み合わせたもの（例えば、特許文献２参照）等、様々なタイプのものが提供されている。また、尻栓は釣竿の最も竿元側に位置することになるので、障害物との接触の機会も多い。このため、衝撃吸収乃至破損防止の趣旨で、弾性ゴムを竿元側端部に配置したものなどもある。
【０００４】
【特許文献１】
特開平１１−２３５１３９号公報（図１など）
【０００５】
【特許文献２】
特開２０００−６０３６９号公報（図３など）
【０００６】
【発明が解決しようとする課題】
ところで、振出形式の釣竿等にあっては、竿体同士を連結固定して一本の釣竿として魚釣りを行っているうちに竿体同士が強固に連結されてしまい、いわゆる竿体同士の固着という現象が生じることもある。このような場合、一般に、釣人は元竿の竿元側端部を他部材に強く叩き付ける等して、固着を解除している。
【０００７】
上述のように、破損防止の趣旨からは尻栓の竿元側端部に弾性ゴム等を配置するのが好ましい。しかし、竿体の固着解除の際にはこのような弾性ゴムが逆に衝撃を吸収してしまい邪魔ともなる。
さらに、釣りを行って手が濡れた場合、この濡れた手で尻栓を竿体に脱着するべく尻栓を回動させるのは滑り易い。特に、弾性ゴム等を尻栓の竿元側端部に配置する場合、濡れた手で弾性ゴムを摘んで操作するのは滑り易い。
【０００８】
本発明の課題は、破損防止・固着解除・操作性向上という各要請を満足するような尻栓を提供することにある。
【０００９】
【課題を解決するための手段】
発明１の尻栓は、釣竿を構成する竿体の竿元側端部に脱着自在に装着される尻栓であって、竿体の竿元側端部に螺合するネジ部と、ネジ部の竿元側に形成された、指で摘むための円盤部分を有する操作部と、略円筒型の弾性体であり、その穂先側端部が円盤部分の穂先側に於いて操作部に連結され、操作部の円盤部分の周縁を覆いつつ竿元側端部が円盤部分より竿元側に突出するゴムカバー部とを備える。
【００１０】
この尻栓はそのネジ部を竿体の竿元側端部に螺合させて用いられることになる。通常の状態では、操作部の円盤部分の竿元側にまで突出しているゴムカバー部が、障害物などとの接触の際にはその衝撃を吸収し、尻栓の破損等も防止される。
釣竿を構成する竿体同士が固着してしまったような際に、釣人が尻栓の竿元側端面を他の部材等に強く叩き付ける等して、一定以上の衝撃がゴムカバー部に与えられると、ゴムカバー部はその弾性によって穂先側に縮小して操作部の円盤部分が竿元側に露出する。この円盤部分が衝撃を直接受けることになり、竿体同士の固着の解除が容易になる。
【００１１】
また、この尻栓を竿体に脱着する際には、円盤部分の周縁にあるゴムカバー部を穂先側に押し込み若しくは穂先側に捲って、円盤部分をゴムカバー部内から露出させる。そして、この円盤部分を摘んで尻栓を回転させる。
発明２の尻栓は、発明１の尻栓であって、操作部は、ネジ部の竿元側においてネジ部より大径に張り出した鍔部分と、鍔部分の竿元側に連続し鍔部分より小径に縊れた首部分と、首部分の竿元側に連続し首部分より大径且つ鍔部分より小径の円盤部分とを有している。一方、ゴムカバー部は穂先端部に径内側方向に張出した張出部分を有し、この張出部分が首部分に係止されている。
【００１２】
首部分と張出部分とが噛み合ってゴムカバー部が操作部に装着されており、ゴムカバー部の穂先側に捲る作業等の際にも、ゴムカバー部が不用意に操作部から外れてしまうようなことがない。このゴムカバー部は操作部に対して接着固定しても良いが、首部分と張出部分との噛み合わせに留めても良い。この場合には、ゴムカバー部を必要に応じて脱着・交換することも可能である。
【００１３】
発明３の尻栓は、発明１又は２の尻栓であって、操作部の円盤部分の周面には滑り止め用の溝が軸方向に向かって複数形成されている。
竿体に対する尻栓の脱着操作の際に、ゴムカバーを穂先側に押し込み若しくは穂先側に捲って円盤部分を摘む際に、この溝が滑り止め効果をさらに高める。
【００１４】
【発明の実施の形態】
以下、本発明の１つの実施形態について、図面を参照しつつ説明する。
図１及び図２に示すように、本発明のある実施形態を採用した尻栓１は、釣竿の最も竿元側に位置する元竿Ｒの竿元側端部に脱着自在に装着されている。具体的には、元竿Ｒの竿元側端部内周面に直接形成されたナット部分若しくは別途装着されたナット部材に、尻栓１が螺合している。
【００１５】
尻栓１は、元竿Ｒの竿元側端部に螺合するネジ部２と、ネジ部２の竿元側に形成された操作部３と、操作部３の周面に配置されるゴムカバー部４とからなる。
ネジ部２は、周面にネジ溝が形成され、元竿Ｒの竿元側端部内に挿入されそのナット部分に螺合するように加工されている部分である。
操作部３は、このネジ部２の竿元側においてネジ部２より大径に張り出した鍔部分５と、鍔部分５の竿元側に連続し鍔部分５より小径に縊れた首部分６と、首部分６の竿元側に連続し首部分６より大径且つ鍔部分５より小径の円盤部分７とを有している。このネジ部２及び操作部３は、硬質の合成樹脂若しくは金属から一体的に形成されている。鍔部分５の外径は元竿Ｒの外径に合致するように設定するのが好ましい。また、円盤部分７は尻栓１の径方向に位置する円盤型の部分である。その周面に周方向に間隔を隔てて尻栓１の軸方向に延びる複数のローレット溝などが形成される。
【００１６】
ゴムカバー部４は、ウレタンゴム，NBRゴム等のゴム素材から形成される略円筒型の部材である。その素材のゴム硬度はHs５５〜７０程度が好ましい。このゴムカバー部４は穂先側部分において径内側方向に張出した張出部分４ａを有している。この張出部分４ａは操作部３の首部分６に噛み合わされており、この張出部分４ａでゴムカバー４は操作部３に装着されている。首部分６に噛み合わされている張出部分４ａは直接操作部３に対して接着固定してもよい。このように張出部分４ａを操作部３に対して接着固定する場合であっても、ゴムカバー部４のその余の部分はフリーな状態としておく。
【００１７】
なお、このゴムカバー部４の軸方向長さはその竿元側端部が上述の円盤部分６の竿元側端面よりもさらに竿元側に突出するように設定される（図２参照）。このゴムカバー部４の突出長さは任意であるが、２〜４ｍｍ程度に設定するのが好ましい。また、ゴムカバー部４の外径は操作部３の鍔部分５に合わせておくのが好ましい。
【００１８】
このような尻栓１では、通常の状態では、操作部３の円盤部分７の竿元側にまで突出しているゴムカバー部４が、竿元側からの障害物などとの接触の際にはその衝撃を吸収する。そして、尻栓１の不当な破損を回避し、衝撃なども吸収する。
一方、図３に示すように、尻栓１を装着した釣竿を構成する竿体同士（例えば、元竿Ｒとその穂先側に振出形式で連結された元上竿と）が固着してしまったような際には、釣人は、その固着解除のために、尻栓１の竿元側端面を他の部材等に強く叩き付ける。このように強く叩き付けられ一定以上の衝撃がゴムカバー部４に与えられると、ゴムカバー部４はその弾性によって穂先側に縮小し、操作部３の円盤部分７が竿元側に露出する。そして、この円盤部分７が衝撃を直接受け、その衝撃を直接的に竿体に伝達するので、竿体同士の固着の解除が容易になる。
【００１９】
さらに、図４に示すように、この尻栓１を元竿Ｒに装着し若しくは元竿Ｒから取り外すために、尻栓１を回動させる際には、円盤部分７の周縁にあるゴムカバー部４を穂先側に押し込み、若しくは穂先側に捲って、円盤部分７をゴムカバー部４内から露出させる。そして、釣人はこの円盤部分７を摘んで尻栓１を円滑に回転させることができる。
【００２０】
円盤部分７には滑り止め用溝もその周面に形成されており、操作性に富み、濡れた手などによる操作も容易である。また、ゴムカバー部４は操作部３の首部分６に装着されており、ゴムカバー部４を穂先側に捲っても、ゴムカバー部４が不用意に操作部３から外れてしまうようなこともない。
【００２１】
【発明の効果】
本発明に係る尻栓によれば、情況に応じて要請される破損防止，固着解除，操作性向上という各要請に対して、十分に対応できる。
【図面の簡単な説明】
【図１】本発明の１つの実施形態を採用した尻栓１を示した図。
【図２】図１の尻栓１の断面図。
【図３】竿体の固着解除時における尻栓１の断面図。
【図４】尻栓１の脱着操作時における尻栓１の断面図。
【符号の説明】
１尻栓
２ネジ部
３操作部
４ゴムカバー部
６首部分
７円盤部分
Ｒ元竿[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plug member referred to as a “butt plug” that is attached to a heel base side end portion of a rod body constituting a fishing rod.
[0002]
[Prior art]
In a fishing rod constructed by connecting a plurality of rods in a so-called swing-out form, a butt plug is detachably attached to the rod side end of the rod located closest to the rod side. When disassembling the chassis connected to the swing type, remove the bottom plug of the main shaft, and sequentially remove the main body located on the tip side from the end of the base side of the main shaft.
[0003]
In such a buttocks plug, one having a drain hole for removing water that has entered the inside of the housing (see, for example, Patent Document 1), or other housing accommodated in the main shaft Various types are provided, such as a combination of elastic members so as not to be damaged by hitting the bottom plug (for example, see Patent Document 2). Also, since the butt plug is located on the most proximal side of the fishing rod, there are many opportunities for contact with obstacles. For this reason, for the purpose of shock absorption or damage prevention, there are some in which elastic rubber is arranged at the end on the heel side.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-235139 (FIG. 1 etc.)
[0005]
[Patent Document 2]
Japanese Unexamined Patent Publication No. 2000-60369 (FIG. 3 etc.)
[0006]
[Problems to be solved by the invention]
By the way, in the fishing rod of the swing-out type, the rods are firmly connected to each other while the rods are connected and fixed as a single fishing rod. A phenomenon may occur. In such a case, the fisherman generally releases the sticking by, for example, strongly hitting the end of the base side of the base rod against another member.
[0007]
As described above, for the purpose of preventing breakage, it is preferable to dispose elastic rubber or the like at the base end of the bottom plug. However, when the housing is released from the sticking, such elastic rubber absorbs the impact and disturbs.
Further, when the hand gets wet after fishing, it is slippery to rotate the butt plug so that the butt plug is detached from the housing with the wet hand. In particular, when an elastic rubber or the like is disposed at the base side end of the bottom plug, it is easy to slip by operating the elastic rubber with a wet hand.
[0008]
An object of the present invention is to provide a bottom plug that satisfies each requirement of preventing breakage, fixing release, and improving operability.
[0009]
[Means for Solving the Problems]
The butt plug of the invention 1 is a butt plug that is detachably attached to the heel-side end portion of the skeleton constituting the fishing rod, and includes a screw portion that is screwed to the heel-side end portion of the skeleton, and a screw portion An operation part having a disc part for picking with a finger, formed on the base side of the head, and a substantially cylindrical elastic body, the tip side end of which is connected to the operation part on the tip side of the disc part, A rubber cover portion is provided that has an end on the heel side protruding from the disc portion toward the heel side while covering the periphery of the disk portion of the operation portion.
[0010]
This butt plug is used by screwing the screw part into the base side end part of the casing. In a normal state, the rubber cover part that protrudes to the base side of the disk part of the operation part absorbs the impact when it comes into contact with an obstacle or the like, and the bottom plug is prevented from being damaged.
When the rods constituting the fishing rod are stuck to each other, the angler gives a certain level of impact to the rubber cover part by, for example, strongly hitting the bottom end surface of the bottom plug against other members. Then, the rubber cover part is reduced to the tip side by its elasticity, and the disk part of the operation part is exposed to the base side. This disk portion is directly subjected to an impact, and it becomes easy to release the sticking between the casings.
[0011]
Further, when the butt plug is attached to or detached from the housing, the rubber cover part at the periphery of the disk part is pushed into the tip side or is turned toward the tip side to expose the disk part from the inside of the rubber cover part. Then, this disc portion is picked and the butt plug is rotated.
The butt plug of the invention 2 is the butt plug of the invention 1, wherein the operation portion has a heel portion projecting larger than the screw portion on the heel side of the screw portion, and a heel portion continuous to the heel side of the heel portion. It has a neck portion that has a smaller diameter and a disk portion that is continuous with the neck side of the neck portion and has a diameter larger than that of the neck portion and smaller than that of the collar portion. On the other hand, the rubber cover portion has a protruding portion that protrudes radially inward at the tip of the ear, and this protruding portion is locked to the neck portion.
[0012]
The neck part and the overhanging part mesh with each other and the rubber cover part is attached to the operation part, and the rubber cover part will inadvertently disengage from the operation part when working on the tip side of the rubber cover part. There is no such thing. The rubber cover portion may be bonded and fixed to the operation portion, but may be fastened to mesh with the neck portion and the overhang portion. In this case, the rubber cover part can be removed and replaced as necessary.
[0013]
The butt plug of the invention 3 is the butt plug of the invention 1 or 2, and a plurality of anti-slip grooves are formed in the axial direction on the peripheral surface of the disk portion of the operation portion.
This groove further enhances the anti-slip effect when the rubber cover is pushed into the tip side or the disc part is picked up by picking up the disc part during the detachment operation of the bottom plug with respect to the casing.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, a bottom plug 1 that employs an embodiment of the present invention is detachably attached to a heel-side end portion of a main rod R that is located on the most heel side of a fishing rod. . Specifically, the bottom plug 1 is screwed into a nut portion directly formed on the inner peripheral surface of the heel side end portion of the heel rod R or a nut member attached separately.
[0015]
The bottom plug 1 includes a screw portion 2 that is screwed into a heel side end portion of the base rod R, an operation portion 3 that is formed on the base side of the screw portion 2, and a rubber that is disposed on the peripheral surface of the operation portion 3. And a cover portion 4.
The threaded portion 2 is a portion having a threaded groove formed on the peripheral surface, and is processed so as to be inserted into a flange-side end portion of the base rod R and screwed into a nut portion thereof.
The operation portion 3 includes a flange portion 5 that protrudes to a larger diameter than the screw portion 2 on the flange side of the screw portion 2, and a neck portion 6 that is continuous with the flange side of the flange portion 5 and is narrower than the flange portion 5. And a disc portion 7 which is continuous with the neck side of the neck portion 6 and has a diameter larger than that of the neck portion 6 and smaller than that of the collar portion 5. The screw portion 2 and the operation portion 3 are integrally formed from a hard synthetic resin or metal. It is preferable to set the outer diameter of the flange portion 5 so as to match the outer diameter of the original flange R. The disk portion 7 is a disk-shaped portion located in the radial direction of the bottom plug 1. A plurality of knurled grooves and the like extending in the axial direction of the bottom plug 1 are formed on the peripheral surface at intervals in the circumferential direction.
[0016]
The rubber cover portion 4 is a substantially cylindrical member formed from a rubber material such as urethane rubber or NBR rubber. The rubber hardness of the material is preferably about Hs 55 to 70. The rubber cover portion 4 has a protruding portion 4a that protrudes radially inward at the tip side portion. The overhanging portion 4 a is engaged with the neck portion 6 of the operation portion 3, and the rubber cover 4 is attached to the operation portion 3 through the overhanging portion 4 a. The overhanging portion 4 a engaged with the neck portion 6 may be directly bonded and fixed to the operation portion 3. Even when the overhanging portion 4a is bonded and fixed to the operation portion 3 in this way, the remaining portion of the rubber cover portion 4 is left free.
[0017]
The axial length of the rubber cover portion 4 is set so that the heel side end portion protrudes further to the heel side than the heel side end surface of the disk portion 6 described above (see FIG. 2). The protruding length of the rubber cover portion 4 is arbitrary, but is preferably set to about 2 to 4 mm. The outer diameter of the rubber cover portion 4 is preferably matched with the flange portion 5 of the operation portion 3.
[0018]
In such a butt plug 1, in a normal state, the rubber cover portion 4 protruding to the base side of the disk portion 7 of the operation unit 3 is in contact with an obstacle from the base side. Absorbs the impact. And the unjust breakage of the butt plug 1 is avoided, and an impact etc. are absorbed.
On the other hand, as shown in FIG. 3, the rods constituting the fishing rod equipped with the butt plug 1 are fixed to each other (for example, the former rod R and the former rod connected to the tip side in a swinging manner). In such a case, the angler strongly hits the heel side end face of the bottom plug 1 against another member or the like to release the sticking. When the rubber cover part 4 is struck so strongly and an impact of a certain level or more is applied to the rubber cover part 4, the rubber cover part 4 shrinks to the tip side due to its elasticity, and the disk part 7 of the operation part 3 is exposed to the base side. And since this disk part 7 receives an impact directly and transmits the impact directly to a housing, cancellation | release of fixation of housings becomes easy.
[0019]
Further, as shown in FIG. 4, when the bottom plug 1 is rotated in order to attach or remove the bottom plug 1 to the main shaft R, the rubber cover portion at the periphery of the disk portion 7 is used. The disk portion 7 is exposed from the inside of the rubber cover portion 4 by pushing 4 into the tip side or over the tip side. And the angler can pick up the disk part 7 and rotate the butt plug 1 smoothly.
[0020]
An anti-slip groove is also formed on the peripheral surface of the disk portion 7, which is excellent in operability and easy to operate with a wet hand or the like. Further, the rubber cover portion 4 is attached to the neck portion 6 of the operation portion 3, and even if the rubber cover portion 4 is turned to the tip side, the rubber cover portion 4 may be inadvertently detached from the operation portion 3. Nor.
[0021]
【The invention's effect】
According to the butt plug according to the present invention, it is possible to sufficiently respond to each request of damage prevention, fixation release, and operability improvement required according to the situation.
[Brief description of the drawings]
FIG. 1 is a view showing a butt plug 1 employing one embodiment of the present invention.
2 is a cross-sectional view of the bottom plug 1 of FIG.
FIG. 3 is a cross-sectional view of the bottom plug 1 when releasing the sticking of the housing.
FIG. 4 is a cross-sectional view of the butt plug 1 during the detachment operation of the butt plug 1;
[Explanation of symbols]
1 Bottom plug 2 Screw part 3 Operation part 4 Rubber cover part 6 Neck part 7 Disc part R Marshal

Claims

A butt plug that is detachably attached to the base side end of the rod constituting the fishing rod,
A threaded portion that is screwed to the base end of the housing;
An operation unit having a disk part for picking with a finger, formed on the base side of the screw part,
It is a substantially cylindrical elastic body, the tip end portion of the disc portion is connected to the operation portion at the tip portion side of the disc portion, and the heel side end portion covers the periphery of the disc portion of the operation portion. A rubber cover part protruding from the part to the base side,
Butt plug with.

The operation portion includes a flange portion projecting to a larger diameter than the screw portion on the flange side of the screw portion, a neck portion that is continuous with the flange side of the flange portion and drowns in a smaller diameter than the flange portion, A disc portion having a diameter larger than that of the neck portion and smaller than that of the collar portion.
The butt plug according to claim 1, wherein the rubber cover portion has a protruding portion that protrudes radially inward at the tip of the ear, and the protruding portion is locked to the neck portion.

The bottom plug according to claim 1 or 2, wherein a plurality of anti-slip grooves are formed in an axial direction on a peripheral surface of a disk portion of the operation portion.