JPH033113B2 - - Google Patents
Info
- Publication number
- JPH033113B2 JPH033113B2 JP17492486A JP17492486A JPH033113B2 JP H033113 B2 JPH033113 B2 JP H033113B2 JP 17492486 A JP17492486 A JP 17492486A JP 17492486 A JP17492486 A JP 17492486A JP H033113 B2 JPH033113 B2 JP H033113B2
- Authority
- JP
- Japan
- Prior art keywords
- inner diameter
- pipe
- nut member
- cap nut
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000012856 packing Methods 0.000 description 15
- 239000002184 metal Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Joints With Pressure Members (AREA)
- Joints Allowing Movement (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、管継手に係り、特に、管にねじれを
生じさせないようにしたものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a pipe joint, and particularly to a pipe joint that prevents twisting of the pipe.
例えば、ICやLSI等の半導体工業分野では、微
粒子塵埃等も排除したクリーンルームでの作業と
なり、製造作業環境並びに条件は一段と厳しいも
のとなつている。この半導体製造において用いら
れる特殊ガスは、クリーンルーム外部より配管を
通じてクリーンルーム内に導入されるが、この特
殊ガス中に空気等の他の不要な気体の分子が混入
することは極端に嫌われるため、配管そのものは
もとより、配管同志を接続する管継手の超精密度
化が要求される。
For example, in the semiconductor industry such as ICs and LSIs, work must be done in clean rooms that exclude particulate dust, and the manufacturing work environment and conditions have become even more severe. The special gas used in semiconductor manufacturing is introduced into the clean room from outside the clean room through piping, but it is extremely difficult to mix other unnecessary gas molecules such as air into this special gas, so the piping In addition to the pipe fittings themselves, ultra-high precision is required for the pipe joints that connect the pipes.
ところで、従来のこの種管継手は、一対の継手
ピース間にシールパツキンを配設し、一方の継手
ピースに他方の継手ピース側から袋ナツト部材を
螺合して両継手ピースを締め付けるものであつ
た。このため、袋ナツト部材を回転して締め付け
る際に、他方の継手ピースが一緒に回転してシー
ルパツキンをねじつてしまい、シールパツキンを
破損する虞れがあるばかりでなく、他方の継手ピ
ースに接続される管をもねじり、管そのものを損
なう可能性があるという欠点がある。この際、シ
ールパツキンとして金属Ｃリングを用いる場合が
あり、この場合には、この金属Ｃリングがねじり
により変形してシール力が著しく低下する特性を
有するため、特に問題があつた。 By the way, in conventional pipe joints of this type, a seal packing is disposed between a pair of joint pieces, and a cap nut member is screwed into one joint piece from the other joint piece side to tighten both joint pieces. Ta. For this reason, when rotating and tightening the cap nut member, the other joint piece rotates together and twists the seal packing, which not only risks damaging the seal packing, but also connects the other fitting piece. It has the disadvantage that it can also twist the tube being used and damage the tube itself. In this case, a metal C ring is sometimes used as the sealing packing, and in this case, there is a particular problem because the metal C ring is deformed by twisting and has a characteristic that the sealing force is significantly reduced.
これがため、管自体やシールパツキンに袋ナツ
ト部材の回転に基づくねじり力を加えないようす
るために一対の継手ピース間に回転手段を介装さ
せることが提案されている。例えば、実開昭58−
104474等が挙げられる。 For this reason, it has been proposed to interpose a rotating means between the pair of joint pieces in order to avoid applying torsional force due to the rotation of the cap nut member to the pipe itself or the seal packing. For example, Utsukai 58-
Examples include 104474.
一方、前記半導体工業分野に限らずあらゆる産
業分野において機械、機器とともに配管の実装密
度を上げて小型、軽量化すべきとの要請が高い。
従つて、管継手も例外でなく可能な限り小型、特
に外径寸法を小さくすることが求められている。
このことは配管の組立、分解さらにはメンテナン
スの観点からも望まれている。 On the other hand, there is a strong demand not only in the semiconductor industry but also in all industrial fields to increase the packing density of piping as well as machines and equipment to make them smaller and lighter.
Therefore, pipe joints are no exception and are required to be made as small as possible, especially in terms of outer diameter.
This is desired from the viewpoint of piping assembly, disassembly, and even maintenance.
ここに、従来の管継手には次のような問題点を
有していた。 Conventional pipe joints have the following problems.
すなわち、前記回転手段は袋ナツト部材の形態
上その開放側から挿入しなければならないのでい
きおい回転手段の外径を袋ナツト部材の内径より
小さくしなければならない。従つて、回転手段の
許容し得る動荷重が制約されるので回転手段を採
用した割にはその実効が低く依然として管にねじ
りを加えてしまうという事態を招来させていた。
このことはより完全なシールが求められる精巧な
管継手程重大な問題となつていた。 That is, because the rotating means must be inserted from the open side of the cap nut member, the outer diameter of the rotating means must be smaller than the inner diameter of the cap nut member. Therefore, the permissible dynamic load of the rotating means is limited, so that even though the rotating means is employed, its effectiveness is low and the tube is still twisted.
This problem has become more serious as the pipe joints become more sophisticated, requiring a more complete seal.
一方、十分な動荷重を許容できる回転手段を採
用するときには管継手自体が非常に大きくなり、
その小型化に反するものとなつて採用する機械、
機器の大型化、取扱不便を招くばかりか管継手自
体が配管に対して外力となり管の屈曲をも誘発し
てしまうという問題もあつた。 On the other hand, when a rotating means that can tolerate sufficient dynamic loads is used, the pipe fitting itself becomes very large.
Machinery that goes against the trend of miniaturization,
This not only causes the equipment to become larger and is inconvenient to handle, but also causes problems in that the pipe fittings themselves apply external force to the pipes, causing the pipes to bend.
本発明は、配管にねじり力を伝達させない小型
かつ軽量でシール性の高い管継手を提供すること
を目的とする。
An object of the present invention is to provide a small, lightweight, and highly sealable pipe joint that does not transmit torsional force to piping.
本発明は、回転手段の許容荷重がそのベアリン
グ球の大きさと個数および球の配設直径に比例的
に増大するという基本的技術事項にたちかえり、
かつそれを巧に利用して袋ナツト部材の雌ネジの
内径よりも大きな外径の回転手段を装着できるよ
うして上記従来の問題点を除去するものである。
The present invention goes back to the basic technical fact that the allowable load of the rotating means increases in proportion to the size and number of bearing balls and the diameter of the balls.
In addition, by skillfully utilizing this fact, it is possible to mount a rotating means having an outer diameter larger than the inner diameter of the female screw of the cap nut member, thereby eliminating the above-mentioned problems of the conventional art.
これがため、一方の継手ピースに設けられた雄
ネジと他方の継手ピースに被嵌された袋ナツト部
材の雌ネジとを螺合させて両管を接続するようし
た管継手において、
前記袋ナツト部材の袋底側内部に前記雌ネジの
内径よりも大きい径とされた拡内径部を設けると
ともにその開放側から該拡内径部に伸びる溝を設
け、かつ外径が前記雌ネジの内径よりも大きい径
の回転手段を該溝を通し該拡内径部に装着し、前
記袋ナツト部材に加える回転力が前記管に伝達さ
れないよう構成し前記目的を達成するのである。 Therefore, in a pipe joint in which both pipes are connected by screwing together a male thread provided on one joint piece and a female thread of a cap nut member fitted on the other joint piece, the cap nut member An enlarged inner diameter portion having a diameter larger than the inner diameter of the female screw is provided inside the bag bottom side, and a groove extending from the open side to the enlarged inner diameter portion is provided, and the outer diameter is larger than the inner diameter of the female screw. The above object is achieved by attaching a diameter rotating means to the enlarged inner diameter portion through the groove so that the rotational force applied to the cap nut member is not transmitted to the tube.
従つて、袋ナツト部材の開放側から溝を通して
回転手段をその拡内径部に挿入し、向きを変えて
安定姿勢のもとに回転手段を装着することができ
る。ここに、袋ナツト部材の雌ネジの内径よりも
大きな外径の回転手段を装着できるから全体の小
型化が達成できるとともに許容荷重を増大できる
ので配管にねじり力を付加させないで管接続をす
ることができる。また、ねじり力を付加させない
のでシールパツキンを変形、破損させることがな
く完全にシールを保障できる。 Therefore, the rotating means can be inserted into the enlarged inner diameter portion through the groove from the open side of the cap nut member, and the rotating means can be mounted in a stable position by changing the orientation. Here, a rotating means with an outer diameter larger than the inner diameter of the female thread of the cap nut member can be attached, so the overall size can be reduced and the allowable load can be increased, so the pipe can be connected without applying twisting force to the pipe. Can be done. Furthermore, since no torsional force is applied, the seal packing is not deformed or damaged, and a complete seal can be guaranteed.
本発明に係る管継手の一実施例を図面を参照し
ながら詳細に説明する。
An embodiment of the pipe joint according to the present invention will be described in detail with reference to the drawings.
この実施例の管継手は第１図ないし第３図に示
される如く、一方の継手ピース１０、他方の継手
ピース２０、袋ナツト部材３０、シールパツキン
４０および回転手段であるスラストベアリング５
０とから構成され、またリテーナ６０が設けられ
ている。 As shown in FIGS. 1 to 3, the pipe joint of this embodiment includes one joint piece 10, the other joint piece 20, a cap nut member 30, a seal packing 40, and a thrust bearing 5 which is a rotating means.
0, and a retainer 60 is provided.
一方の継手ピース１０は、一方の管１５に一体
的であつて先端側にシールパツキン４０の受部１
２が設けられ、外周面には雄ネジ１１が刻設され
ている。他方の継手ピース２０は他方の管２５に
一体的であつて先端側にはシールパツキン４０を
所定の位置で押圧するための凸条部２１が形成さ
れている。 One joint piece 10 is integral with one pipe 15 and has a receiving portion 1 for a seal packing 40 on the distal end side.
2 is provided, and a male thread 11 is carved on the outer peripheral surface. The other joint piece 20 is integral with the other pipe 25, and has a protruding portion 21 formed on the distal end side for pressing the seal packing 40 at a predetermined position.
また、袋ナツト部材３０は、第２図および第３
図に見られるように全体とし六角ナツト形状とさ
れ、袋底側３７には拡内径部３５が設けられかつ
開放側３１には雌ネジ３３が刻設されている。袋
底側３７には内壁面３９に交叉させた貫通孔３８
が設けられている。さらに、袋ナツト部材３０に
は開放側３１から拡内径部３５に伸びる一対の溝
３２，３２が設けられている。 Further, the cap nut member 30 is shown in FIGS. 2 and 3.
As seen in the figure, the bag has a hexagonal nut shape as a whole, and an enlarged inner diameter portion 35 is provided on the bottom side 37 of the bag, and a female thread 33 is carved on the open side 31. The bag bottom side 37 has a through hole 38 that crosses the inner wall surface 39.
is provided. Further, the cap nut member 30 is provided with a pair of grooves 32, 32 extending from the open side 31 to the enlarged inner diameter portion 35.
ここに、拡内径部３５の内径Deは13.5mmとさ
れ、雌ネジ３３は内径12.9mmの下穴に刻設した
９／16−18UNFネジである。すなわち、ナツト
部材３０には雌ネジ３３の内径よりも大きな径と
された拡内径部３５を設け、かつこの拡内径部３
５に雌ネジ３３の内径よりも大きな外形の物体を
挿通させるために一対の溝３２，３２が設けられ
ている。 Here, the inner diameter De of the enlarged inner diameter portion 35 is 13.5 mm, and the female screw 33 is a 9/16-18 UNF screw cut in a pilot hole with an inner diameter of 12.9 mm. That is, the nut member 30 is provided with an enlarged inner diameter portion 35 having a larger diameter than the inner diameter of the female screw 33, and this enlarged inner diameter portion 3
5 is provided with a pair of grooves 32, 32 for inserting an object having an outer diameter larger than the inner diameter of the female thread 33.
また、回転手段であるスラストベアリング５０
は、外径が13.3mmであつて、11個の球を内蔵する
もので合金鋼を主とした材質からなり250Kgのス
ラスト荷重を持つものである。因に、一般的に、
外径が12mmの同種スラストベアリングでは142Kg
程度のスラスト荷重しか許容できない。同様に外
径が15mmの場合には310Kgのスラスト荷重をもつ
ことができる。 In addition, a thrust bearing 50 which is a rotating means
It has an outer diameter of 13.3 mm, contains 11 balls, is made mainly of alloy steel, and has a thrust load of 250 kg. Incidentally, in general,
A similar thrust bearing with an outer diameter of 12mm weighs 142Kg.
Only a moderate thrust load can be tolerated. Similarly, if the outer diameter is 15mm, it can have a thrust load of 310Kg.
シールパツキン４０は、一方の継手ピース１０
の受部１２に支持されるとともに他方の継手ピー
ス２０の突条部２１で押圧され両管１５，２５を
水密的に接続シールするものである。なお、検査
等のために装着されたシールパツキン４０の位置
に相当する位置の袋ナツト部材３０には外側から
内側に貫通する穴が設けられているが図では省略
している。 The seal packing 40 is attached to one joint piece 10
It is supported by the receiving part 12 of the other joint piece 20 and pressed by the protrusion part 21 of the other joint piece 20 to connect and seal both the pipes 15 and 25 in a watertight manner. Note that a hole penetrating from the outside to the inside is provided in the cap nut member 30 at a position corresponding to the position of the seal gasket 40 mounted for inspection, etc., but is not shown in the figure.
また、リテーナ６０は、他方の継手ピース２０
に被嵌可能な円環部６１と径方向に伸縮可能な脚
部６２とからなり、袋ナツト部材３０に被着され
た回転手段としてのスラストベアリング５０を第
１図に示すような安定した姿勢に保持するための
ものである。なお、このリテーナ６０は、袋ナツ
ト部材３０の開放側３１から挿入できるよう形成
されている。 Further, the retainer 60 is connected to the other joint piece 20
The thrust bearing 50, which serves as a rotating means and is attached to the cap nut member 30, is in a stable posture as shown in FIG. It is intended to be kept in place. Note that this retainer 60 is formed so that it can be inserted from the open side 31 of the cap nut member 30.
次に、この実施例の作用について説明する。 Next, the operation of this embodiment will be explained.
まず、第２図に示す状態において、スラストベ
アリング５０を横向きとして溝３２，３２を通
し、開放側３１から拡内径部３５に送り込みかつ
姿勢を正して袋ナツト部材３０に装着する。続い
て、リテーナ６０を開放側３１から押し込みスラ
ストベアリング５０の一面を内壁面３９に当接さ
せつつ、脚部６２の弾性力を利用して雌ネジ３３
に係止させることによつてスラストベアリング５
０の姿勢を安定に保持させる。以下、他方の管２
５と一体的な他方の継手ピース２０を装着すると
ともにシールパツキン４０を介装させ、一方の管
１５と一体的な一方の継手部材１０を押し付つ
つ、袋ナツト部材３０を回転し、その雌ネジ３３
と雄ネジ１１とを螺合させて両管１５，２５を接
続する。 First, in the state shown in FIG. 2, the thrust bearing 50 is placed horizontally, passed through the grooves 32, 32, and fed into the enlarged inner diameter portion 35 from the open side 31, corrected, and mounted on the cap nut member 30. Next, while pushing the retainer 60 from the open side 31 and bringing one side of the thrust bearing 50 into contact with the inner wall surface 39, the female screw 33 is inserted using the elastic force of the legs 62.
By locking the thrust bearing 5
Maintain the 0 position stably. Below, the other pipe 2
Attach the other joint piece 20 that is integral with the pipe 15 and interpose the seal packing 40, and while pressing the one joint member 10 that is integral with the one pipe 15, rotate the bag nut member 30 to remove the female nut. screw 33
and the male screw 11 are screwed together to connect both the pipes 15 and 25.
従つて、この実施例によれば、袋ナツト部材３
０を回動しても回転手段たるスラストベアリング
５０を装着しているので継手ピース１０，２０は
もとより管１５，２５にもその回動力は伝達させ
ないから管１５，２５を破損させたりシールパツ
キン４０に無理な変形等を生じさせないので完壁
なシールを保障できる。 Therefore, according to this embodiment, the cap nut member 3
Since the thrust bearing 50, which is a rotating means, is installed, even if the pipe 0 is rotated, the rotational force is not transmitted to the pipes 15, 25 as well as the joint pieces 10, 20, so it may damage the pipes 15, 25, or the seal gasket 40 may be damaged. Since no unreasonable deformation occurs, a perfect seal can be guaranteed.
また、回転手段たるスラストベアリング５０の
外径を袋ナツト部材３０の雌ネジ３３の内径Ds
よりも大きくすることができるから、大きなスラ
スト荷重を許容することができかつ管継手全体を
小型、軽量化することができる。これは、拡内径
部３５の内径をさらに大きくしかつ溝３２，３２
の深さをさらに大きくすれば、スラスト荷重を一
層大きくすることを意味するものである。従つ
て、配管やその機器等から管継手の外径が規制さ
れたとしてもスラスト荷重を任意的に選択できる
から、管１５，２５にネジリ変形や破損を生じさ
せないので、当該管継手を採用する設備の生産性
を飛躍的に向上できるとともに長寿命化も達成す
ることができる。 Also, the outer diameter of the thrust bearing 50, which is the rotating means, is the inner diameter D s of the female thread 33 of the cap nut member 30.
Since it can be made larger than that, a large thrust load can be tolerated, and the entire pipe joint can be made smaller and lighter. This further increases the inner diameter of the enlarged inner diameter portion 35 and the grooves 32, 32.
Further increasing the depth means further increasing the thrust load. Therefore, even if the outer diameter of the pipe joint is regulated by the piping or its equipment, the thrust load can be selected arbitrarily, and this pipe joint is adopted because it does not cause torsional deformation or damage to the pipes 15 and 25. It is possible to dramatically improve the productivity of the equipment and also to extend the life of the equipment.
さらに、袋ナツト部材３０の内側に溝３２，３
２を設ければよいから、既存の管継手にも容易か
つ経済的に採用できるから、従来のガス、液体等
流体の漏洩に苦しんでいた技術的欠陥を解消でき
るという効果もある。 Furthermore, grooves 32 and 3 are provided inside the cap nut member 30.
2, it can be easily and economically adopted in existing pipe joints, and it also has the effect of solving the technical defects that conventionally suffered from leakage of fluids such as gas and liquid.
さらにまた、許容するスラスト荷重に相応した
回転手段たるスラストベアリング５０の仕様に適
合させるべく、袋ナツト部材３０等の仕様をその
都度設計変更するという煩わしさが除去されると
ともに、構造簡単で経済的であるという実用上の
利益が大である。 Furthermore, it eliminates the trouble of having to change the design of the cap nut member 30 and the like each time in order to conform to the specifications of the thrust bearing 50, which is a rotating means that corresponds to the allowable thrust load, and the structure is simple and economical. This has great practical benefits.
なお、以上の実施例によれば、回転手段をスラ
ストベアリング５０から形成したが、要は袋ナツ
ト部材３０の回転力を両管１５，２５等に伝達さ
せなければよくまたは軽微とすればよいから必ず
しもスラストベアリングでなくローラベアリング
や潤滑部材等から回転手段を構成してもよい。 In addition, according to the above embodiment, the rotating means is formed from the thrust bearing 50, but the point is that the rotating force of the cap nut member 30 need not be transmitted to the two pipes 15, 25, etc., or may be small. The rotating means may not necessarily be a thrust bearing, but may be a roller bearing, a lubricating member, or the like.
また、拡内径部３５と溝３２，３２の深さは雌
ネジ３３の高さ相当としたが、さらに第２図、第
３図で二点鎖線で示したように袋ナツト部材３０
の肉厚に切り込むような大径としてもよく、要は
装着する回転手段の外径を円滑挿通させることが
できれば任意に選択できるものである。同様の理
由から溝３２，３２は180度で対向させた一対の
ものとしたが、１つの溝でもよくあるいは４つ以
上としてもよい。 Further, the depth of the enlarged inner diameter portion 35 and the grooves 32, 32 was made equivalent to the height of the female screw 33, but the cap nut member 30 was also
The diameter may be large enough to be cut into the wall thickness, and the point is that any diameter can be selected as long as the outer diameter of the rotating means to be attached can be smoothly inserted. For the same reason, the grooves 32, 32 are a pair opposed to each other at 180 degrees, but they may be one groove or four or more grooves.
ただし、一対とすれば加工上、強度上有利であ
る。また、溝３２，３２は直線形状の溝でなくス
パイラル形状等としてもよい。 However, forming a pair is advantageous in terms of processing and strength. Further, the grooves 32, 32 may not be linear grooves but may be spiral shaped grooves or the like.
さらに、シールパツキン４０は、金属Ｃリング
等その形態材質は不問であるとともに、継手ピー
ス１０，２０の受部１２、凸条部２１はその形状
等も選択自由である。もとより、シールパツキン
４０の過押込量防止手段を採用することも採否自
由である。 Furthermore, the shape and material of the seal packing 40, such as a metal C-ring, can be selected freely, and the shapes of the receiving portions 12 and the protruding portions 21 of the joint pieces 10 and 20 can also be freely selected. Of course, it is also possible to adopt a means for preventing the seal packing 40 from being pushed in too much.
さらにまた、回転手段の姿勢保持用のリテーナ
６０の形態等も開示範囲に限定されず一方の継手
ピース１０の先端側に弾性部材を設ける等しても
よい。つまり、リテーナ６０は本発明の必須要件
ではない。 Furthermore, the form of the retainer 60 for maintaining the posture of the rotation means is not limited to the disclosed range, and an elastic member may be provided on the distal end side of one of the joint pieces 10. In other words, the retainer 60 is not an essential requirement of the present invention.
もとより、この発明の管継手は、管径、管内流
体種別等は限定されず全ての産業分野に適用され
る。 Of course, the pipe joint of the present invention is applicable to all industrial fields without being limited in terms of pipe diameter, type of fluid in the pipe, etc.
本発明は、配管にねじり力を伝達させない小型
かつ軽量でシール性の高い管継手を提供すること
ができるという効果を有する。
The present invention has the advantage that it is possible to provide a small, lightweight, and highly sealable pipe joint that does not transmit torsional force to piping.
第１図は本発明に係る管継手の全体構成図、第
２図は同じく袋ナツト部材の縦断面図および第３
図は同じく袋ナツト部材の正面図である。
１０……一方の継手ピース、１１……雄ネジ、
１５……一方の管、２０……他方の継手ピース、
２５……他方の管、３０……袋ナツト部材、３１
……開放側、３２……溝、３３……雌ネジ、３５
……拡内径部、３７……袋底側、４０……シール
パツキン、５０……回転手段であるスラストベア
リング。
FIG. 1 is an overall configuration diagram of a pipe joint according to the present invention, and FIG. 2 is a longitudinal cross-sectional view of a cap nut member, and a third
The figure is also a front view of the cap nut member. 10...One joint piece, 11...Male thread,
15...One pipe, 20...The other joint piece,
25...other pipe, 30...cap nut member, 31
...Open side, 32...Groove, 33...Female thread, 35
...Enlarged inner diameter part, 37...Bag bottom side, 40...Seal packing, 50...Thrust bearing which is a rotating means.
Claims (1)
の継手ピースに被嵌された袋ナツト部材の雌ネジ
とを螺合させて両管を接続するようにした管継手
において、 前記袋ナツト部材の袋底側内部に前記雌ネジの
内径よりも大きい径とされた拡内径部を設けると
ともにその開放側から該拡内径部に伸びる溝を設
け、かつ外径が前記雌ネジの内径よりも大きい径
の回転手段を該溝を通し該拡内径部に装着し、前
記袋ナツト部材に加える回転力が前記管に伝達さ
れないよう構成したことを特徴とする管継手。[Scope of Claims] 1. A pipe joint in which both pipes are connected by screwing together a male thread provided on one joint piece and a female thread of a cap nut member fitted on the other joint piece. , an enlarged inner diameter portion having a diameter larger than the inner diameter of the female screw is provided inside the bag bottom side of the bag nut member, and a groove extending from the open side of the enlarged inner diameter portion to the enlarged inner diameter portion, and an outer diameter of the inner diameter portion is larger than the inner diameter of the female screw. A pipe joint characterized in that a rotating means having a diameter larger than the inner diameter of the pipe is attached to the enlarged inner diameter portion through the groove so that the rotational force applied to the cap nut member is not transmitted to the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17492486A JPS6330687A (en) | 1986-07-25 | 1986-07-25 | Pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17492486A JPS6330687A (en) | 1986-07-25 | 1986-07-25 | Pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6330687A JPS6330687A (en) | 1988-02-09 |
| JPH033113B2 true JPH033113B2 (en) | 1991-01-17 |
Family
ID=15987095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17492486A Granted JPS6330687A (en) | 1986-07-25 | 1986-07-25 | Pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6330687A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63129790U (en) * | 1987-02-19 | 1988-08-24 | ||
| JPH0367967U (en) * | 1989-11-07 | 1991-07-03 |
-
1986
- 1986-07-25 JP JP17492486A patent/JPS6330687A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6330687A (en) | 1988-02-09 |
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