JPH06213324A - Water stop method for pipe fitting - Google Patents

Abstract

PURPOSE:To stop water certainly even though there is a gap between two pipes, which are to be screw coupled in the condition that a peripheral seal tape with male threads is wound on them, by putting a soft thin rod in the male threaded portions of the pipes alongside the pipe axes, and thereupon winding the seal tape. CONSTITUTION:When the first pipe 1 fitted with male threads 3 on the periphery to be screw coupled with the second pipe 2 fitted with female threads on the bore surface, a thin rod 5 made of soft vinyl chloride, etc., is overlapped on the outer surface of the male threads 3 in such a way as stretching in the longitudinal direction of the first pipe 1. A seal tape 6 is wound on the peripheral surface of the male threads 3 in such a way as enwrapping the thin rod 5. In this condition, the male threads 3 of the pipe 1 are driven into the female threads 4 of the pipe 2, and thereby the two pipes 1, 2 are screw coupled. The thin rod 5 is pinched between the male threads 3 and female threads 4 and crushed, and water can be stopped perfectly by this thin rod 5 crushed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は管継手の止水方法に係
り、特にシールテープを用いた管継手の止水性を高める
ようにした管継手の止水方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water stopping method for pipe joints, and more particularly to a water stopping method for pipe joints using a sealing tape to improve water stopping performance.

【０００２】[0002]

【従来の技術】端部外周に雄螺子が刻設された第１の管
と、端部内周に雌螺子が刻設された第２の管とを、該雄
螺子を該雌螺子に螺子込むことにより連結するに際し、
該雄螺子の外面にシールテープを巻き付けておくことは
従来から慣用されている。2. Description of the Related Art A first tube having an external thread engraved on the outer periphery of an end and a second tube having an internal thread engraved on the inner periphery of an end are screwed into the female thread. When connecting by
It has been customary to wind a seal tape around the outer surface of the male screw.

【０００３】[0003]

【発明が解決しようとする課題】例えば、水栓の脚管の
雄螺子部を躯体側の給水管内面の雌螺子部に螺着する場
合などのように、第１の管の雄螺子部の外径と第２の管
の雌螺子部の内径との差が大きいときには、止水性が低
くなり、漏水が生じるおそれがある。For example, as in the case of screwing the male screw portion of the leg pipe of the faucet to the female screw portion of the inner surface of the water supply pipe on the body side, the male screw portion of the first pipe is When the difference between the outer diameter and the inner diameter of the female screw portion of the second pipe is large, the water blocking performance becomes low and water leakage may occur.

【０００４】本発明の目的は、雄螺子の外径と雌螺子の
内径との差がある程度大きくても確実に止水することが
できる管継手の止水方法を提供することにある。An object of the present invention is to provide a water stopping method for a pipe joint which can surely stop water even if the difference between the outer diameter of the male screw and the inner diameter of the female screw is large to some extent.

【０００５】[0005]

【課題を解決するための手段】本発明の管継手の止水方
法は、端部外周に雄螺子が刻設された第１の管と、端部
内周に雌螺子が刻設された第２の管とを、該雄螺子を該
雌螺子に螺子込むことにより連結するに際し、該雄螺子
の外面にシールテープを巻き付けておく管継手の止水方
法に関する。According to the method of stopping water in a pipe joint of the present invention, a first pipe having an external thread engraved on the outer periphery of the end and a second tube having an internal thread engraved on the inner periphery of the end are provided. When the male screw is connected to the female screw by screwing the male screw into the female screw, a sealing tape is wound around the outer surface of the male screw to prevent water in the pipe joint.

【０００６】請求項１の止水方法は、該第１の管の雄螺
子部分に軟質な細棒を第１の管の長手方向に沿わせ、こ
の細棒の上から前記シールテープを巻くようにしたこと
を特徴とするものである。According to a first aspect of the present invention, in the water stopping method, a soft thin rod is provided along a male screw portion of the first pipe along a longitudinal direction of the first pipe, and the sealing tape is wound on the thin rod. It is characterized by having done.

【０００７】請求項２の管継手の止水方法は、該第１の
管の先端近傍の雄螺子の谷部に軟質な小粒体を挿入し、
この小粒体の上から前記シールテープを巻くようにした
ことを特徴とするものである。According to a second aspect of the present invention, there is provided a method for stopping water leakage in a pipe joint, wherein a soft small particle is inserted into a valley portion of a male screw near the tip of the first pipe,
The sealing tape is wound on the small particles.

【０００８】[0008]

【作用】請求項１の管継手の止水方法においては、第１
の管の雄螺子を第２の管の雌螺子に螺子込むと、軟質な
細棒が該雄螺子外周と雌螺子内周との間に挟み込まれ、
押し潰される。According to the first aspect of the present invention, there is provided a pipe joint water-stopping method,
When the male screw of the pipe is screwed into the female screw of the second pipe, the soft thin rod is sandwiched between the male screw outer circumference and the female screw inner circumference,
Crushed.

【０００９】この種の管継手における漏水は、雄螺子と
雌螺子との間の空隙を螺旋状に伝わって継手外部に流出
して生じるものである。Water leakage in this type of pipe joint is caused by spirally passing through the space between the male screw and the female screw and flowing out of the joint.

【００１０】請求項１のように軟質細棒を管の長手方向
に配材しておいて雄螺子と雌螺子との間で押し潰すと、
この雄螺子と雌螺子との間の螺旋状の空隙が一周回ごと
に分断されることになり、水が外部へ伝わり出ようとす
ることが確実に阻止される。When the soft thin rods are arranged in the longitudinal direction of the pipe and crushed between the male screw and the female screw as in claim 1,
The spiral gap between the male screw and the female screw is divided for each revolution, and it is possible to reliably prevent the water from being transmitted to the outside.

【００１１】請求項２の管継手の止水方法においては、
小粒状体が押し潰されることにより、同様に雄螺子と雌
螺子との間の螺旋状の空隙が分断され、止水される。In the water stopping method for a pipe joint according to claim 2,
When the small granular body is crushed, the spiral gap between the male screw and the female screw is similarly divided and the water is stopped.

【００１２】[0012]

【実施例】以下図面を参照して実施例について説明す
る。第１図は請求項１の実施例方法を説明する分解斜視
図、第２図は第１の管の縦断面図、第３図は第１の管と
第２の管とを連結した状態における断面斜視図、第４図
は第３図の要部拡大図である。Embodiments will be described below with reference to the drawings. FIG. 1 is an exploded perspective view for explaining the method of the embodiment of claim 1, FIG. 2 is a longitudinal sectional view of the first pipe, and FIG. 3 is a state in which the first pipe and the second pipe are connected. FIG. 4 is a sectional perspective view, and FIG. 4 is an enlarged view of a main part of FIG.

【００１３】第１の管１の外周面に雄螺子３が刻設さ
れ、第２の管２の内周面に雌螺子４が刻設されている。
第１の管１の長手方向に沿うように、雄螺子３の外面に
軟質塩化ビニル等よりなる軟質な細棒５が重ね合わさ
れ、この細棒５をくるむようにして雄螺子３の外周面に
シールテープ６が巻き付けられる。しかる後、この第１
の管１の雄螺子３を第２の管２の雌螺子４に螺子込んで
管１，２の連結を行なう。A male screw 3 is engraved on the outer peripheral surface of the first tube 1, and a female screw 4 is engraved on the inner peripheral surface of the second tube 2.
A soft thin rod 5 made of soft vinyl chloride or the like is superposed on the outer surface of the male screw 3 so as to extend along the longitudinal direction of the first tube 1, and the sealing tape is provided on the outer peripheral surface of the male screw 3 so as to wrap the thin rod 5. 6 is wrapped. After that, this first
The male screw 3 of the pipe 1 is screwed into the female screw 4 of the second pipe 2 to connect the pipes 1 and 2.

【００１４】細棒５は、雄螺子３と雌螺子４との間に挟
み込まれ、第３図及び第４図に示すように押し潰され
る。この押し潰された細棒５により、雄螺子３と雌螺子
４との間の螺旋状の間隙が緻密に埋められ、万全な止水
が行なわれる。即ち、この細棒５がないと、シールテー
プ６を厚く巻いたとしても、シールテープ６と雄螺子３
及び雌螺子４との密着度合いが不足し、管１，２内の水
圧が高い場合には雄螺子３と雌螺子４との螺旋状の間隙
を通って水がリークする恐れがあるが、細棒５がこの螺
旋状の間隙を埋めることにより、水の螺旋方向の流れが
遮断され、万全な止水が行なわれるのである。The thin rod 5 is sandwiched between the male screw 3 and the female screw 4 and is crushed as shown in FIGS. 3 and 4. The crushed thin rod 5 densely fills the spiral gap between the male screw 3 and the female screw 4 to ensure complete water stopping. That is, without the thin rod 5, even if the sealing tape 6 is wound thickly, the sealing tape 6 and the male screw 3
If the degree of close contact with the female screw 4 is insufficient and the water pressure in the pipes 1 and 2 is high, water may leak through the spiral gap between the male screw 3 and the female screw 4, but By filling the spiral gap with the rod 5, the flow of water in the spiral direction is blocked, and perfect water stopping is performed.

【００１５】なお、水栓の脚管の雄螺子部の外径と、給
水管内面の雌螺子部の内径とには、通常の場合０．１〜
０．６ｍｍ程度の差があるが、直径０．０５〜０．５ｍ
ｍ程度の軟質プラスチック製、例えば塩化ビニル製の細
棒５を第１図のように使用することにより、万全な止水
を行なうことができた。ここで用いたシールテープは、
厚さ０．１ｍｍの四ふっ化エチレン樹脂製の市販品（Ｊ
ＩＳ Ｋ６８８５）である。The outer diameter of the male screw portion of the leg pipe of the faucet and the inner diameter of the female screw portion of the inner surface of the water supply pipe are normally 0.1 to 0.1.
There is a difference of about 0.6 mm, but the diameter is 0.05 to 0.5 m
By using a thin rod 5 made of a soft plastic of about m, for example, vinyl chloride, as shown in FIG. 1, perfect water stopping could be achieved. The sealing tape used here is
Commercially available product made of ethylene tetrafluoride resin with a thickness of 0.1 mm (J
IS K6885).

【００１６】第５図は請求項２の実施例を説明する一部
断面図、第６図は小粒体７の斜視図である。本実施例に
おいては、第１の管１の雄螺子３の谷部に軟質塩化ビニ
ル製の小粒体７を挿入し、この小粒体７を上から押さえ
るようにしてシールテープ６を巻き付ける。その後は、
同様にしてこの第１の管１を第２の管２（第５図では図
示略）に螺子込む。この小粒体７が、雄螺子３と雌螺子
４との間の螺旋状の間隙を遮断することにより、漏水を
確実に防止することができる。FIG. 5 is a partial sectional view for explaining the embodiment of claim 2, and FIG. 6 is a perspective view of the small particles 7. In this embodiment, the small particles 7 made of soft vinyl chloride are inserted into the troughs of the male screw 3 of the first tube 1, and the sealing tape 6 is wound so as to press the small particles 7 from above. After that,
Similarly, the first tube 1 is screwed into the second tube 2 (not shown in FIG. 5). The small particles 7 block the spiral gap between the male screw 3 and the female screw 4 so that water leakage can be reliably prevented.

【００１７】なお、第５図及び第６図では球形状の小粒
体７を用いているが、この小粒体の形状は球形状以外の
各種のものとすることができる。例えば、第７図に示す
ように短い円柱形状としても良く、第８図に示すように
三角柱など角柱形状としても良い。さらに、円柱ないし
角柱形状の小粒体を第９図のごとく円弧状に湾曲させて
も良い。この湾曲した小粒体１０は、雄螺子に沿わせ易
い。Although the spherical small particles 7 are used in FIGS. 5 and 6, the shapes of the small particles can be various shapes other than the spherical shape. For example, it may have a short columnar shape as shown in FIG. 7 or a prismatic shape such as a triangular prism as shown in FIG. Further, a cylindrical or prismatic small particle may be curved in an arc shape as shown in FIG. The curved small particles 10 are easy to fit along the male screw.

【００１８】[0018]

【発明の効果】以上の通り、本発明の請求項１，２の管
継手の止水方法によると、雄螺子の外径と雌螺子の内径
とが大きな差を有していても、確実な止水を行なうこと
ができる。As described above, according to the water stopping method for a pipe joint of claims 1 and 2 of the present invention, even if there is a large difference between the outer diameter of the male screw and the inner diameter of the female screw, it is possible to ensure the reliability. Water can be stopped.

【図面の簡単な説明】[Brief description of drawings]

【図１】請求項１の実施例を説明する斜視図である。FIG. 1 is a perspective view illustrating an embodiment of claim 1. FIG.

【図２】シールテープを巻いた第１の管の断面図であ
る。FIG. 2 is a cross-sectional view of a first tube wrapped with a sealing tape.

【図３】第１の管を第２の管に螺子込んだ状態における
断面斜視図である。FIG. 3 is a cross-sectional perspective view showing a state in which the first tube is screwed into the second tube.

【図４】図３の要部拡大図である。FIG. 4 is an enlarged view of a main part of FIG.

【図５】請求項２の方法を説明する一部断面図である。FIG. 5 is a partial cross-sectional view illustrating the method of claim 2.

【図６】小粒体７の斜視図である。6 is a perspective view of small particles 7. FIG.

【図７】小粒体８の斜視図である。7 is a perspective view of small particles 8. FIG.

【図８】小粒体９の斜視図である。8 is a perspective view of small particles 9. FIG.

【図９】小粒体１０の斜視図である。9 is a perspective view of a small particle 10. FIG.

【符号の説明】[Explanation of symbols]

１ 第１の管 ２ 第２の管 ３ 雄螺子 ４ 雌螺子 ５ 細棒 ６ シールテープ ７，８，９，１０ 小粒体 1 1st pipe 2 2nd pipe 3 Male screw 4 Female screw 5 Thin rod 6 Seal tape 7,8,9,10 Small particle

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 端部外周に雄螺子が刻設された第１の管
と、端部内周に雌螺子が刻設された第２の管とを、該雄
螺子を該雌螺子に螺子込むことにより連結するに際し、
該雄螺子の外面にシールテープを巻き付けておく管継手
の止水方法において、 該第１の管の雄螺子部分に軟質な細棒を第１の管の長手
方向に沿わせ、この細棒の上から前記シールテープを巻
くようにしたことを特徴とする管継手の止水方法。1. A first pipe having an external thread engraved on the outer circumference of an end and a second tube having an internal thread engraved on the inner circumference of the end, wherein the male screw is screwed into the female screw. When connecting by
In a water stopping method for a pipe joint, in which a sealing tape is wound around an outer surface of the male screw, a soft thin rod is provided along a longitudinal direction of the first pipe in the male screw portion of the first pipe, A water stopping method for a pipe joint, characterized in that the sealing tape is wound from above. 【請求項２】 端部外周に雄螺子が刻設された第１の管
と、端部内周に雌螺子が刻設された第２の管とを、該雄
螺子を該雌螺子に螺子込むことにより連結するに際し、
該雄螺子の外面にシールテープを巻き付けておく管継手
の止水方法において、 該第１の管の先端近傍の雄螺子の谷部に軟質な小粒体を
挿入し、この小粒体の上から前記シールテープを巻くよ
うにしたことを特徴とする管継手の止水方法。2. A first pipe having an external thread engraved on the outer periphery of the end portion and a second tube having an internal thread engraved on the inner periphery of the end portion, and the male screw is screwed into the female screw. When connecting by
In the water stopping method of a pipe joint in which a seal tape is wound around an outer surface of the male screw, a soft small particle is inserted into a trough portion of the male screw near the tip of the first pipe, and the soft small particle is inserted from above the small particle. A method for stopping water in a pipe joint, which is characterized in that a sealing tape is wound.