JPH04107391A - Coupling for corrugated pipe - Google Patents
Coupling for corrugated pipeInfo
- Publication number
- JPH04107391A JPH04107391A JP2226864A JP22686490A JPH04107391A JP H04107391 A JPH04107391 A JP H04107391A JP 2226864 A JP2226864 A JP 2226864A JP 22686490 A JP22686490 A JP 22686490A JP H04107391 A JPH04107391 A JP H04107391A
- Authority
- JP
- Japan
- Prior art keywords
- nut
- joint body
- claw
- corrugated tube
- corrugated pipe
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title abstract 11
- 238000010168 coupling process Methods 0.000 title abstract 11
- 238000005859 coupling reaction Methods 0.000 title abstract 11
- 210000000078 claw Anatomy 0.000 claims abstract description 94
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、波付管用継手に関し、詳しくは、ジャバラ
状に成形された合成樹脂管等からなり、可とう電線管等
として利用される波付管を、配管構造部材に連結固定し
たり、波付管同士を連結固定したりするのに用いる継手
に関するものである〔従来の技術〕
波付管は、建築物の配線施工の際に、電線を通して保護
しておく電線管に用いられており、軽量で強度も高く自
由に曲げることができるので、配線施工の作業性を向上
でき、施工コストを削減できる等の利点を有している。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a corrugated pipe joint, and more specifically, the present invention relates to a corrugated pipe joint, which is made of a synthetic resin pipe molded into a bellows shape, and is used as a flexible conduit pipe. This relates to a joint used for connecting and fixing a pipe to a piping structural member, or for connecting and fixing corrugated pipes to each other. It is used for electrical conduits to protect electrical wires.It is lightweight, has high strength, and can be bent freely, so it has the advantage of improving the workability of wiring construction and reducing construction costs.
波付管は、電線管以外にも、各種の線材を保護する保護
管や空気等の流体を通すパイプあるいはホースとしても
利用されている。Corrugated tubes are used not only as electrical conduits but also as protection tubes to protect various wires, and pipes and hoses for passing fluids such as air.
波付管を配線ボックス等の構造部材に連結固定したり、
波付管同士を接続するには、専用の継手(コネクタ)が
使用される。これは、波付管の管壁は軸方向に沿ってジ
ャバラ状にうねっており外面には凹凸がついているので
、従来の通常の鋼管や合成樹脂パイプのような滑らかな
外面を有する管を接続するための継手をそのまま使用す
ることはできず、波付管の凹凸形状に適した継手が必要
になるのである。Connecting and fixing corrugated pipes to structural members such as wiring boxes,
A special joint (connector) is used to connect corrugated pipes. This is because the pipe wall of a corrugated pipe is undulated in a bellows-like manner along the axial direction, and the outer surface is uneven, so it is possible to connect a pipe with a smooth outer surface such as a conventional regular steel pipe or synthetic resin pipe. It is not possible to use a joint for this purpose as is, but a joint that is suitable for the uneven shape of the corrugated pipe is required.
第7図は、従来における波付管用継手の構造を示してお
り、短いパイプ状をなす継手本体1の両端には雄ねじl
a、lbが切られている。継手本体1よりも径の大きな
筒状をなすナツト2は、内面に雌ねじ2aが形成されて
いるとともに、ナツト2の端縁から内面に沿って軸方向
に延びる爪片2bが周方向に多数段けられ、爪片2bの
先端には中心に向かって突出する爪部2cが設けられて
いる。ナツト2は、合成樹脂等から形成されていて、爪
片2bが付は根の部分を基点にして弾力的に屈曲もしく
は旋回できるようになっている。Figure 7 shows the structure of a conventional corrugated pipe joint.
a, lb is cut. The nut 2, which has a cylindrical shape with a larger diameter than the joint body 1, has a female thread 2a formed on the inner surface, and a plurality of pawls 2b extending in the axial direction from the edge of the nut 2 along the inner surface in the circumferential direction. At the tip of the claw piece 2b, a claw portion 2c is provided which projects toward the center. The nut 2 is made of synthetic resin or the like, and has a claw piece 2b that can elastically bend or turn around the root.
第8図は、波付管を接続した状態であり、ナツト2の爪
片2bを設けた側の端部から波付管3を挿入すると、爪
片2bが弾力的に屈曲変形して波付管3を通過させた後
、爪片2bが復元することにより、爪部2Cが波付管3
の外面に形成されている谷部3aに嵌まって係止される
。−旦ナソト2に挿入された波付管3を元の方向に引き
抜こうとすると、波付管3と爪部2Cの当接個所に爪片
2bを中心側に旋回させる方向の力が作用することにな
るので、前記爪部2Cが波付管3の谷部3aに余計に押
し付けられることになり、波付管3は移動できない。こ
のようにして、波付管3がナツト2に連結固定される。Fig. 8 shows a state in which the corrugated tube is connected, and when the corrugated tube 3 is inserted from the end of the nut 2 on the side where the claw piece 2b is provided, the claw piece 2b is elastically bent and deformed, causing the corrugated tube to form. After passing through the pipe 3, the claw piece 2b is restored, so that the claw part 2C is attached to the corrugated pipe 3.
It fits into and is locked in the trough 3a formed on the outer surface of. - When trying to pull out the corrugated tube 3 inserted into the nasoto 2 in the original direction, a force in the direction of turning the pawl piece 2b toward the center is applied to the contact point between the corrugated tube 3 and the pawl portion 2C. Therefore, the claw portion 2C is pressed against the trough portion 3a of the corrugated tube 3, and the corrugated tube 3 cannot be moved. In this way, the corrugated tube 3 is connected and fixed to the nut 2.
ナツト2の雌ねじ2aを継手本体1の一方の雄ねじ1a
にねじ込み、継手本体1の他方の雄ねじ1bを配線ボッ
クス等の構造部材4にねじ込み固定することによって、
波付管3の取付施工が行われる。Connect the female thread 2a of the nut 2 to the male thread 1a of the joint body 1.
By screwing the other male thread 1b of the joint body 1 into a structural member 4 such as a wiring box,
The corrugated pipe 3 is installed.
建築物の配線施工等においては、設計の変更や施工ミス
その他の原因で、波付管3の長さや接続個所を変える等
、−旦施工した波付管3を取り外す場合がある。このと
きには、継手本体1がらナツト2および波付管3を取り
外すだけでなく、波付管3をナツト2からも取り外す必
要が生じることが多い。When constructing wiring for a building, the corrugated pipe 3 that has already been installed may be removed due to design changes, construction errors, or other causes, such as changing the length or connection points of the corrugated pipe 3. At this time, it is often necessary not only to remove the nut 2 and corrugated tube 3 from the joint body 1, but also to remove the corrugated tube 3 from the nut 2.
ところが、前記のような構造を有する従来の波付管用継
手では、継手本体1にねじ込み接続されたナツト2は、
ナツト2を回すことによって継手本体1から取り外すこ
とができるが、ナツト2から波付管3を取り外すのが困
難であるという問題があった。前記したように、ナツト
2の爪部2cが波付管3の谷部3aに係止されており、
波付管3をナツト2から引き抜こうとするほど、爪部2
Cが谷部3aに食い込むように押し付けられることにな
るので、−旦ナント2と波付管3を連結してしまうと、
再び取り外すことは極めて困難である。However, in the conventional corrugated pipe joint having the above structure, the nut 2 screwed into the joint body 1 is
Although the nut 2 can be removed from the joint body 1 by turning it, there is a problem in that it is difficult to remove the corrugated tube 3 from the nut 2. As described above, the claw portion 2c of the nut 2 is locked to the trough portion 3a of the corrugated tube 3,
The more you try to pull out the corrugated tube 3 from the nut 2, the more the claw 2
C will be pressed so as to bite into the trough 3a, so if the -danant 2 and the corrugated tube 3 are connected,
It is extremely difficult to remove it again.
そのため、従来は、第9図に示すように、ナツト2の取
付位置よりも内側(X−X線位置)で波付管3を切断し
た後、ナット2側に残った短い波付管3を矢印方向、す
なわち波付管3の凹凸で爪部2cを押動したときに爪片
2bが外周側に押し除けられる方向に移動させて抜き取
るようにしていた。波付管3の本体部分には再びナツト
2を挿入取付して新たな施工を行う。Therefore, as shown in FIG. 9, in the past, after cutting the corrugated tube 3 on the inside of the mounting position of the nut 2 (X-X line position), the short corrugated tube 3 remaining on the nut 2 side was cut. The claw piece 2b is moved in the direction of the arrow, that is, in the direction in which when the claw portion 2c is pushed by the unevenness of the corrugated tube 3, the claw piece 2b is pushed away toward the outer circumferential side and removed. The nut 2 is again inserted and attached to the main body of the corrugated pipe 3, and new construction is performed.
しかし、この方法では、波付管3の切断、抜き取り、お
よび、ナツト2の再装着という工程が必要であり、工数
が多くなって作業性が極めて悪いものである。また、ナ
ツト2側に残った短い波付管3を引き抜く際には、爪部
2cおよび爪片2bの弾力的な移動に合わせて丁寧にゆ
っくりと引き抜かなければならず、大変に面倒であり、
波付管3を強引に引き抜くと、爪部2cや爪片2bを損
傷してナツト2が再使用できなくなる。さらに、ナツト
2を短い波付管3とともに捨ててしまったり、取り外し
たナツト2を再使用するまでの間に紛失してしまったり
する可能性も高く、ナツト2を保管しておいたり、無く
なったナツト2を補充する等、ナツト2の管理が面倒で
余計なコストが掛かることになる。However, this method requires steps of cutting and extracting the corrugated tube 3 and reinstalling the nut 2, which increases the number of man-hours and has extremely poor workability. In addition, when pulling out the short corrugated tube 3 remaining on the nut 2 side, it must be pulled out carefully and slowly in accordance with the elastic movement of the claw portion 2c and the claw piece 2b, which is very troublesome.
If the corrugated tube 3 is forcibly pulled out, the claw portion 2c and the claw piece 2b will be damaged, making the nut 2 unusable. Furthermore, there is a high possibility that the nut 2 will be thrown away together with the short corrugated tube 3, or that the removed nut 2 will be lost before being reused. Managing the nuts 2, such as replenishing the nuts 2, is troublesome and requires extra costs.
そこで、この発明の課題は、前記したような従来におけ
る波付管用継手の問題点を解消し、ナ・ノドと波付管の
取り外し作業が簡単かつ確実に行え、ナットを損傷した
り紛失したりする心配もない波付管用継手を提供するこ
とにある。Therefore, the object of this invention is to solve the above-mentioned problems of the conventional corrugated pipe joints, to easily and reliably remove the corrugated pipe from the corrugated pipe, and to prevent the nut from being damaged or lost. To provide a corrugated pipe joint that does not have to worry about damage.
上記課題を解決する、この発明にかかる波イ」管用継手
は、継手本体と継手本体に連結自在な筒状のナツトから
なり、ナツトの内面には、継手本体への連結側と反対側
になる端部側を基点にして軸方向に延び弾力的に旋回可
能な爪片、および、爪片の先端でナットの中心に向かっ
て突出した爪部を備えてなり、波付管をナット内に挿入
し、前記爪部を波付管外面の谷部に係止して、波付管と
ナツトを固定する波付管用継手において、ナ・ノドの爪
片には先端が軸方向に突出する操作部を備え、ナツトの
内面で爪部と別の位置には係合凸部を備えており、継手
本体の外周面にはす・ノドの係合凸部と摺動自在に係合
する係合溝を備え、この係合溝は、継手本体の端縁から
軸方向につづく導入部と、導入部の端部から軸方向と直
交する周方向につづく固定部と、導入部の端部から周方
向に対して継手本体の奥側に傾斜する方向につづく解除
部とからなり、さらに、継手本体の端部には、先細り状
をなし、ナットの前記操作部に当接する押動部を備えて
いる。The wave-shaped pipe joint according to the present invention, which solves the above problems, consists of a joint body and a cylindrical nut that can be freely connected to the joint body. The corrugated tube is inserted into the nut by a claw piece that extends in the axial direction from the end side and can pivot elastically, and a claw part that projects toward the center of the nut at the tip of the claw piece. In the corrugated pipe joint for fixing the corrugated pipe and the nut by locking the pawl part to the trough on the outer surface of the corrugated pipe, the nail piece of the navel has an operating part whose tip protrudes in the axial direction. The nut has an engagement protrusion on the inner surface of the nut at a different position from the pawl, and an engagement groove on the outer peripheral surface of the joint body that slidably engages with the engagement protrusion of the slot and throat. The engagement groove includes an introduction part that continues in the axial direction from the edge of the joint body, a fixing part that continues from the end of the introduction part in the circumferential direction perpendicular to the axial direction, and a fixation part that continues in the circumferential direction from the end of the introduction part. and a release part that continues in a direction that is inclined toward the back of the joint body, and the end of the joint body is further provided with a pushing part that has a tapered shape and comes into contact with the operating part of the nut. .
継手本体およびナットの基本的な構造は、通常の波付管
用継手と同様でよい。例えば、継手本体は、一端にナッ
トを連結し、他端を配線ボックス等の構造部材に連結し
て、波付管を構造部材に連結固定するもののほか、継手
本体の両端にす・ノドを連結して、波付管同士を連結固
定するものなどがある。継手本体を構造部材に連結する
部分の構造は、ねじ接続や嵌合接続その他、通常の各種
管継手における接続構造が自由に利用できるが、継手本
体とナツトおよびナットと波付管との連結構造を下記の
ような構造にする。The basic structure of the joint body and nut may be the same as a normal corrugated pipe joint. For example, the fitting body can be used to connect a nut to one end and connect the other end to a structural member such as a wiring box to connect and fix a corrugated pipe to the structural member, or to connect the grooves and grooves at both ends of the fitting body. There are some that connect and fix corrugated pipes together. The structure of the part that connects the joint body to the structural member can be freely used such as threaded connection, fitting connection, and other connection structures of ordinary pipe joints, but the connection structure of the joint body and nut, and the nut and corrugated pipe Have the structure as shown below.
ナツトには、基本的に従来の波付管用継手と同様の爪片
を設けておく。爪片は、筒状をなすナットの内面で、一
方の端部を基点にして軸方向に延び弾力的に旋回可能に
設けられる。爪片は、ナ・ノドの内周方向全体に等間隔
で複数個並べておくのが、波付管の全周を均等に係止で
きて好ましいが、爪片の設置個数や間隔は自由に変更で
きる。爪片は、ナツトの本体部分と一体成形して、素材
自体の弾性で弾力的に旋回可能になったものが好ましい
が、爪片をナット本体と別の材料で形成したり、爪片に
弾力的な付勢力を加えるバネを設けてお(こともできる
。The nut is basically provided with a claw piece similar to a conventional corrugated pipe joint. The claw piece is provided on the inner surface of the cylindrical nut, extends in the axial direction with one end as a base point, and is elastically rotatable. It is preferable to arrange a plurality of claw pieces at equal intervals along the entire inner circumference of the navel so that the entire circumference of the corrugated tube can be evenly locked, but the number and spacing of the claw pieces can be changed freely. can. It is preferable that the claw pieces are integrally molded with the main body of the nut so that they can turn elastically due to the elasticity of the material itself. However, the claw pieces may be made of a different material from the nut body, or It is also possible to install a spring that applies a certain biasing force.
爪部は、取り付ける波付管の凹凸形状に合わせて、波付
管の谷部に係合できる形状および位置に設けておく。波
付管と接触する爪部の側面のうち、波付管をナットに挿
入する際に当接する側面に傾斜をつけておくと、波付管
の挿入がスムーズに行える。The claw portions are provided in a shape and position that can engage with the troughs of the corrugated tube in accordance with the uneven shape of the corrugated tube to be attached. Of the side surfaces of the claw portion that come into contact with the corrugated tube, if the side surface that comes into contact when inserting the corrugated tube into the nut is sloped, the corrugated tube can be inserted smoothly.
爪片には、先端が軸方向に突出する操作部を備えておく
。操作部は、継手本体の軸方向端部に設けられる押動部
と当接できるように、爪部よりも軸方向の先端側に設け
ておくのが好ましい。操作部は、継手本体の押動部に当
接したときに、互いに滑り易(、また、外周側に持ち上
げられ易い形状をなすものが好ましい。具体的には、操
作部の内周側の端縁を切り落として傾斜をつけておくと
、上記のような動作が行われ易くなる。The claw piece is provided with an operating part whose tip protrudes in the axial direction. The operating portion is preferably provided closer to the tip in the axial direction than the claw portion so that it can come into contact with the pushing portion provided at the end in the axial direction of the joint body. It is preferable that the operating parts have a shape that allows them to easily slide against each other (and be easily lifted toward the outer circumference) when they come into contact with the pushing part of the joint body.Specifically, the inner end of the operating part If you cut off the edges and create a slope, the above operation will be easier to perform.
爪片の内面で、前記爪部と別の位置には係合凸部を備え
ておく。係合凸部は、後述する継手本体の係合溝に沿っ
て摺動可能な形状であれば、角台状あるいは円形台状、
楕円台状その他の任意の突起形状が採用できる。係合凸
部の形成位置は、前記した爪片の動作の邪魔にならない
位置であれば任意の位置で良い。係合凸部は単独でもよ
いが、ナツトの直径方向で対向する位置等に複数個設け
ておけば、ナットと継手本体をスムーズに作動させたり
、ナツトと継手本体の組み立て強度を高めたりすること
ができる。係合凸部は、ナットの他部分と一体成形され
ていてもよいし、合成樹脂製のナツトに金属製の係合凸
部を接合するものでもよい。An engaging convex portion is provided on the inner surface of the claw piece at a position different from the claw portion. The engagement protrusion may be shaped like a square trapezoid, a circular trapezoid, or
Any other protrusion shape such as an elliptical trapezoid shape can be adopted. The engagement protrusion may be formed at any position as long as it does not interfere with the movement of the claw piece. A single engagement protrusion may be used, but if multiple engagement protrusions are provided at opposing positions in the diametrical direction of the nut, the nut and the joint body can operate smoothly and the assembly strength of the nut and the joint body can be increased. I can do it. The engagement protrusion may be integrally molded with other parts of the nut, or the metal engagement protrusion may be joined to a synthetic resin nut.
継手本体の外周面に形成しておく係合溝は、ナツトの係
合凸部が滑らかに摺動できる形状あるいは深さに形成し
ておく。The engagement groove formed on the outer circumferential surface of the joint body has a shape or depth that allows the engagement convex portion of the nut to slide smoothly.
係合溝のうち、導入部は、継手本体の端縁から軸方向に
つづくように設けられる。導入部は、継手本体に軸方向
から嵌めるナットの係合凸部を、係合溝に導き入れるこ
とができれば、比較的短くても十分であり、また、正確
に軸方向と平行でなくてもよい。The introduction portion of the engagement groove is provided so as to continue in the axial direction from the edge of the joint body. The introduction part may be relatively short as long as it can guide the engagement convex part of the nut that is fitted into the joint body from the axial direction into the engagement groove, and it does not need to be exactly parallel to the axial direction. good.
固定部は、ナットの係合凸部を係合した状態で、ナツト
を軸方向に引き抜いたり、使用中に振動や衝撃が加わっ
ても、ナットが抜は出さないような形状および長さを有
する。そのため、軸方向と直交する周方向に形成し、係
合凸部を確実に係合しておける長さが必要である。固定
部の一部に係合凸部よりも狭く、かつ、弾力的に変形で
きる部分を設けたり、係合凸部を押圧するバネを設けて
おけば、振動や衝撃が加わっても係合凸部が外れ難くな
る。The fixing part has a shape and length that prevents the nut from being pulled out even if the nut is pulled out in the axial direction while the engagement convex part of the nut is engaged, or even if vibration or impact is applied during use. . Therefore, it needs to be formed in the circumferential direction perpendicular to the axial direction and have a length that allows the engaging protrusion to be reliably engaged. If a part of the fixed part is narrower than the engagement protrusion and can be elastically deformed, or if a spring is provided to press the engagement protrusion, the engagement protrusion will remain intact even when vibrations or shocks are applied. The part becomes difficult to remove.
解除部は、ナットの係合凸部が解除部に沿って摺動した
ときに、ナット全体が継手本体の奥側に十分な距離だけ
移動し、爪片の操作部が継手本体の押動部に当接して、
爪片および爪部の作動量を確保できるだけの長さが必要
である。解除部の周方向に対する傾斜がきついと、少し
の回転角度でナットが大きく移動するが、傾斜角度がゆ
るいほうが押動部と操作部の当接による爪片の移動はス
ムーズに行える。解除部は、全体が同じ角度で傾斜して
いてもよいし、解除部の端部に周方向と平行な部分を設
けるなど、部分的に傾斜角度の異なる(置所があっても
よい。In the release part, when the engagement convex part of the nut slides along the release part, the entire nut moves a sufficient distance to the back of the joint body, and the operating part of the claw moves to the pushing part of the joint body. in contact with,
The length must be sufficient to ensure the amount of movement of the claw piece and the claw portion. If the inclination of the release part in the circumferential direction is steep, the nut will move significantly with a small rotation angle, but if the inclination angle is gentle, the movement of the claw piece due to the contact between the pushing part and the operating part can be performed smoothly. The entire release part may be inclined at the same angle, or the release part may have partially different inclination angles (at different locations), such as by providing a portion parallel to the circumferential direction at the end of the release part.
継手本体の端部に形成する押動部は、ナットの爪片の操
作部に当接させたときに、押動部で操作部すなわち爪片
および爪部を外周側に移動できるような形状を備えてお
り、そのために、先端に向けて細くなる先細り状をなし
ている。先細りとは、直線的に傾斜しているだけであっ
てもよいし、曲線的に傾斜していたり、一部に段差がつ
いていてもよい。The pushing part formed at the end of the joint body has a shape that allows the pushing part to move the operating part, that is, the claw and the claw, toward the outer periphery when it comes into contact with the operating part of the claw of the nut. Therefore, it has a tapered shape that tapers toward the tip. The tapered state may be a linear inclination, a curved inclination, or a part with a step.
この発明にかかる波付管用継手は、前記した電気配線用
の可とう電線管の接続に用いるだけでなく、従来、波付
管が用いられている各種の管類の接続にも用いることが
できる。空気等の流体を流す波付管に適用する場合には
、波付管の挿入部分に、シール構造を設けておくことも
できる。The corrugated pipe joint according to the present invention can be used not only to connect the above-mentioned flexible conduit for electrical wiring, but also to connect various types of pipes in which corrugated pipes have conventionally been used. . When applied to a corrugated tube through which fluid such as air flows, a seal structure may be provided at the insertion portion of the corrugated tube.
継手本体とナットを組み立てるには、ナットの係合凸部
が継手本体の係合溝に係合されるようにして、継手本体
の端部にナツトを嵌める。ナツトの係合凸部は継手本体
の端部から係合溝の導入部に入る。その後、ナットを軸
方向から周方向に回動させれば、係合凸部が導入部から
固定部に入り、係合凸部と固定部との係合作用により、
ナットと継手本体が連結固定される。すなわち、継手本
体の軸方向と直交する周方向に沿って形成された固定部
に係合凸部が係合されると、ナットの軸方向への移動が
阻止されるので、継手本体からナットが抜は出すことが
ない。To assemble the joint body and the nut, the nut is fitted onto the end of the joint body so that the engagement protrusion of the nut is engaged with the engagement groove of the joint body. The engagement convex portion of the nut enters the introduction portion of the engagement groove from the end of the joint body. After that, when the nut is rotated from the axial direction to the circumferential direction, the engagement protrusion enters the fixed part from the introduction part, and due to the engagement action between the engagement protrusion and the fixed part,
The nut and the joint body are connected and fixed. In other words, when the engaging convex portion is engaged with the fixing portion formed along the circumferential direction perpendicular to the axial direction of the joint body, the nut is prevented from moving in the axial direction, so that the nut is removed from the joint body. There are no exceptions.
ナツトに波付管を取り付けるには、従来と同様に、波付
管をナットの内部に挿入して、ナツトの爪部を波付管外
面の谷部に係止させればよい。継手本体にナットおよび
波付管を取り付けた状態で、通常の波付管用継手と同様
に使用される。To attach a corrugated tube to a nut, the corrugated tube is inserted into the inside of the nut and the claws of the nut are engaged with the troughs on the outer surface of the corrugated tube, as in the conventional case. It is used in the same way as a normal corrugated pipe joint, with the nut and corrugated pipe attached to the joint body.
つぎに、継手本体から波付管を取り外す方法を説明する
。係合凸部が固定部から解除部へと移動するように、ナ
ットを回すと、係合凸部が解除部の傾斜に沿って摺動す
るのに伴い、係合凸部およびナット全体が、回りながら
継手本体の軸方向の奥側へと移動することになる。ナッ
トが奥側に移動すると、ナット内面の爪片すなわち操作
部も奥側に移動する。そうすると、操作部は継手本体の
先端に設けられた押動部に当接する。なおもナツトが回
されて継手本体の奥側に移動すると、爪片の操作部が先
細り状をなす押動部の傾斜面に沿って乗り上げた状態に
なり、爪片が外周側に旋回して、爪部が波付管の谷部か
ら外周側に外れることになり、波付管と爪部との係合が
解除される。この状態で、波付管をナットから引き抜け
ば、波付管は何ら抵抗を受けずにスムーズに引き出され
ることになる。Next, a method for removing the corrugated pipe from the joint body will be explained. When the nut is turned so that the engagement protrusion moves from the fixing part to the release part, as the engagement protrusion slides along the slope of the release part, the engagement protrusion and the entire nut will move. As it rotates, it moves toward the back of the joint body in the axial direction. When the nut moves to the back side, the claw piece on the inner surface of the nut, that is, the operating section also moves to the back side. Then, the operating section comes into contact with the pushing section provided at the tip of the joint body. If the nut is still turned and moved to the back of the joint body, the operating part of the claw piece will ride along the tapered slope of the pushing part, and the claw piece will turn toward the outer circumference. , the claw portion comes off from the trough of the corrugated tube toward the outer circumference, and the engagement between the corrugated tube and the claw portion is released. If the corrugated tube is pulled out from the nut in this state, the corrugated tube will be pulled out smoothly without any resistance.
また、ナットから波付管を引き抜いた後、別の波付管を
ナツトに挿入する際にも、爪片および爪部が外周側に移
動していれば、波付管が爪部および爪片に当たることな
く、スムーズに挿入される。波付管を挿入した後、ナッ
トを回して、係合凸部を固定部側に移動させれば、継手
本体の押動部に乗り上げていたナットの操作部は押動部
から離れて元の位置に戻り、爪片の爪部を波付管の谷部
に係合させて、波付管を固定することができる。In addition, when inserting another corrugated tube into the nut after pulling out the corrugated tube from the nut, if the claws and the claw portion move toward the outer circumference, the corrugated tube will move past the claw portion and the claw piece. It is inserted smoothly without hitting anything. After inserting the corrugated tube, turn the nut and move the engaging protrusion toward the fixed part. The operating part of the nut that was riding on the pushing part of the joint body will move away from the pushing part and return to its original position. The corrugated tube can be fixed by returning to the position and engaging the claw portion of the claw piece with the trough portion of the corrugated tube.
したがって、この発明にかかる波付管用継手では、継手
本体とナットは一体的に組み立てられたままの状態で、
波付管の挿入および取り外しが可能である。また、ナッ
トの回転操作のみで、波付管の谷部に爪片の爪部を係合
させた状態およ係合を解除させた状態を選択操作するこ
とができ、波付管の固定および固定解除を簡単かつ確実
に行える。Therefore, in the corrugated pipe joint according to the present invention, the joint body and the nut remain assembled integrally.
Corrugated tubes can be inserted and removed. In addition, by simply rotating the nut, you can select between engaging and disengaging the claws of the corrugated tube with the valleys of the corrugated tube. Fixation can be easily and reliably released.
ついで、この発明の実施例を図面を参照しながら以下に
詳しく説明する。Next, embodiments of the present invention will be described in detail below with reference to the drawings.
第1図および第2図には、波付管を配線ボックス等の構
造部材に取り付けるための波付管継手の構造を示してい
る。波付管継手は、筒状の継手本体10と、継手本体1
0よりも径が大きく短い筒状のナット20とからなる。1 and 2 show the structure of a corrugated pipe joint for attaching a corrugated pipe to a structural member such as a wiring box. The corrugated pipe joint includes a cylindrical joint body 10 and a joint body 1.
It consists of a cylindrical nut 20 that has a larger diameter and is shorter than that of the cylindrical nut 20.
継手本体10およびナツト20は、合成樹脂もしくは金
属で形成されている。後述する爪片のように弾力的に繰
り返し変形させられる構造を有するナット20は、弾力
性に優れた合成樹脂からなるのが好ましい。The joint body 10 and the nut 20 are made of synthetic resin or metal. The nut 20, which has a structure that can be elastically deformed repeatedly like a claw piece to be described later, is preferably made of a synthetic resin with excellent elasticity.
ナット20の内面には、第3図および第4図にその断面
構造を示すように、一方の端部を基点にして軸方向にナ
ツト20の中央付近までつづく細片状の爪片22が、周
方向に等間隔で多数前べて設けられている。爪片22の
先端近くには、中心に向かって突出する突起状の爪部2
4が設けられている。爪部24は、波付管30の外面に
存在する谷部32の形状に合わせて形成されており、爪
部24が谷部32に嵌まり込むようになっている。爪部
24の先端側の側面はほぼ垂直に形成され、爪部24の
付は根側の側面には傾斜がつけられている。爪片22は
、爪部24からさらに軸方向に延びて、先端が操作部2
6となっている。操作部26の内周側の縁は斜めに切り
落とされており、後述する継手本体10の押動部による
押動操作が行い易くなっている。On the inner surface of the nut 20, as shown in its cross-sectional structure in FIGS. 3 and 4, there is a strip-shaped claw piece 22 that extends from one end to near the center of the nut 20 in the axial direction. A large number of them are provided in front at equal intervals in the circumferential direction. Near the tip of the claw piece 22, there is a protruding claw portion 2 that protrudes toward the center.
4 is provided. The claw portion 24 is formed to match the shape of the trough portion 32 present on the outer surface of the corrugated tube 30, and the claw portion 24 fits into the trough portion 32. The side surface on the tip side of the claw part 24 is formed substantially vertically, and the side surface on the root side of the claw part 24 is inclined. The claw piece 22 further extends in the axial direction from the claw portion 24, and the tip thereof is connected to the operating portion 2.
It is 6. The inner circumferential edge of the operating portion 26 is cut off diagonally, making it easier to perform a pushing operation using a pushing portion of the joint body 10, which will be described later.
ナット20の内面で、前記爪片22を形成した側とは反
対側の位置に係合凸部28が形成されている。係合凸部
28は、角台状に突出しており、後述する継手本体10
の係合溝に嵌まる。係合凸部28は、ナツト20の内面
で直径方向の対向位置にそれぞれ設けられている。(第
1図では、片方の係合凸部28しか表わされていない。An engaging protrusion 28 is formed on the inner surface of the nut 20 at a position opposite to the side on which the claw piece 22 is formed. The engagement convex portion 28 protrudes in a square trapezoidal shape, and is connected to the joint body 10 described later.
It fits into the engagement groove of. The engaging protrusions 28 are provided at opposing positions in the diametrical direction on the inner surface of the nut 20. (In FIG. 1, only one engagement protrusion 28 is shown.
)ナット20の外面には、周方向に多数の刻みや凹凸線
を形成して、回動操作や取り扱い時に滑らないようにし
ている。) The outer surface of the nut 20 is provided with numerous notches and uneven lines in the circumferential direction to prevent it from slipping during rotation and handling.
つぎに、継手本体10は、一端にナット連結部12を備
え、他端に雄ねじ部16が形成されている。雄ねじ部1
6の付は根にはフランジ部18が設けられている。雄ね
じ部16は、継手本体10を構造部材に連結固定するた
めの接続手段であり、通常の配線ボックス等への連結構
造と同様のものが設げられている。Next, the joint body 10 includes a nut connecting portion 12 at one end, and a male threaded portion 16 at the other end. Male thread part 1
A flange portion 18 is provided at the base of the numeral 6. The male threaded portion 16 is a connection means for connecting and fixing the joint body 10 to a structural member, and is provided with a connection structure similar to a normal connection structure to a wiring box or the like.
ナット連結部12には、外周面に沿って浅い係合溝50
が設けられている。係合溝5oは、導入部52、固定部
54および解除部56からなり、継手本体10にナット
20を嵌めたときに、ナツト20の係合凸部28が係合
溝50に嵌まり込んで前記各部52〜56に沿って自由
に摺動できるようになっている。係合溝50のうち、導
入部52は継手本体10の端縁から軸方向に沿って短く
つづいており、導入部52の端部で、左右に固定部54
と解除部56がつながっている。固定部54は、軸方向
と直交する周方向に延びている。解除部56は、周方向
、すなわち固定部54の形成方向に対して傾斜して延び
ている。したがって、解除部56は先端側はど継手本体
10の奥側へと進んでいることになる。なお、係合溝5
0は、ナツト連結部12の外周で直径方向で対向する位
置に対称形状でそれぞれ設けられており、前記したナッ
ト20の一対の係合凸部28.28にそれぞれ係合する
ようになっている。The nut connecting portion 12 has a shallow engagement groove 50 along the outer circumferential surface.
is provided. The engagement groove 5o consists of an introduction part 52, a fixing part 54, and a release part 56, and when the nut 20 is fitted into the joint body 10, the engagement convex part 28 of the nut 20 fits into the engagement groove 50. It can freely slide along each of the sections 52 to 56. In the engagement groove 50, the introduction part 52 continues in the axial direction from the edge of the joint body 10, and at the end of the introduction part 52, fixing parts 54 are formed on the left and right sides.
and a release section 56 are connected. The fixing portion 54 extends in a circumferential direction perpendicular to the axial direction. The release portion 56 extends obliquely to the circumferential direction, that is, the direction in which the fixing portion 54 is formed. Therefore, the release portion 56 extends toward the back of the joint body 10 on the distal end side. In addition, the engagement groove 5
0 are provided in symmetrical shapes at diametrically opposing positions on the outer periphery of the nut connecting portion 12, and are adapted to engage with the pair of engagement convex portions 28, 28 of the nut 20, respectively. .
ナツト連結部12の端縁には、押動部14が設置7
けられている。押動部14は、ナツト連結部12の外周
縁を斜めに切り落として形成されており、先端に向かっ
て先細り状をなしている。継手本体10のナツト連結部
12例の内径は、取り付ける波付管30の外形と同じか
少し大きめをなし、奥部途中にば段差17が形成してあ
って、雄ねし部16側の内径は小さくなっている。した
がって、ナツト連結部12側から挿入された波付管30
は、段差17の部分まで挿入されることになる。A pushing part 14 is installed at the edge of the nut connecting part 12. The pushing part 14 is formed by cutting off the outer peripheral edge of the nut connecting part 12 diagonally, and is tapered toward the tip. The inner diameter of the nut connecting part 12 of the joint body 10 is the same as or slightly larger than the outer diameter of the corrugated pipe 30 to be attached, and a step 17 is formed in the middle of the inner part, and the inner diameter on the male thread part 16 side is is getting smaller. Therefore, the corrugated tube 30 inserted from the nut connecting portion 12 side
will be inserted up to the step 17.
上記のような構造を備えた継手本体10およびナツト2
0の使用方法について説明する。Joint body 10 and nut 2 having the above structure
How to use 0 will be explained.
まず、継手本体10とナット20の連結方法を説明する
と、第1図に示すように、継手本体10の係合溝50の
うち導入部52とナツト20の係合凸部28とを位置合
わせした状態で、ナット20を軸方向から継手本体10
のナツト連結部12に嵌め込んでいくと、係合凸部28
が導入部52に沿って移動して、ナット20が継手本体
10に嵌まり込む。ナツト20の係合凸部28が係合溝
50の導入部52の先まで移動した段階で、ナツト20
を係合溝50の固定部54の方向(第1図で時計回り方
向A)に回すと、係合凸部28が固定部54に沿って移
動する。こうして、係合凸部28と係合溝50の固定部
54とが係合すれば、その後、ナット20を軸方向に引
き抜こうとしても、係合凸部28と係合溝50との係合
により移動を阻止されることになり、ナラ1−20は継
手本体10に連結固定されたことになる。この状態では
、第3図に示すように、ナツト20の爪片22の先端に
設けられた操作部26は、継手本体10の押動部14と
の間に、少し間隔をあけた状態で配置される。First, to explain the method of connecting the joint body 10 and the nut 20, as shown in FIG. state, insert the nut 20 from the axial direction into the joint body 10.
When it is fitted into the nut connecting part 12, the engaging convex part 28
moves along the introduction part 52, and the nut 20 is fitted into the joint body 10. At the stage when the engagement protrusion 28 of the nut 20 has moved to the tip of the introduction part 52 of the engagement groove 50, the nut 20
When the engaging groove 50 is turned in the direction of the fixing part 54 (clockwise direction A in FIG. 1), the engaging convex part 28 moves along the fixing part 54. In this way, if the engagement protrusion 28 and the fixing part 54 of the engagement groove 50 are engaged, even if the nut 20 is subsequently pulled out in the axial direction, the engagement protrusion 28 and the engagement groove 50 will not be engaged. This means that movement is prevented, and the oak 1-20 is connected and fixed to the joint body 10. In this state, as shown in FIG. 3, the operating part 26 provided at the tip of the claw piece 22 of the nut 20 is placed with a slight gap between it and the pushing part 14 of the joint body 10. be done.
ナツト20を継手本体10から取り外す際には、ナツト
20を前記と逆の方向に回して、係合凸部28を固定部
54から導入部52との接続点まで移動させてから、ナ
ット20を軸方向に引き抜けばよい。When removing the nut 20 from the joint body 10, turn the nut 20 in the opposite direction to move the engagement protrusion 28 from the fixed part 54 to the connection point with the introduction part 52, and then remove the nut 20. Just pull it out in the axial direction.
つぎに、ナツト20と波付管30の連結方法を説明する
。第3図に示すように、ナツト20と波付管30の連結
固定は、基本的には従来の継手と同じように行われる。Next, a method of connecting the nut 20 and the corrugated tube 30 will be explained. As shown in FIG. 3, the nut 20 and the corrugated tube 30 are connected and fixed basically in the same manner as in conventional joints.
すなわち、ナット20の内部に波付管30を挿入して、
ナツト20の爪部24が波付管30外面の谷部32に係
合されることによって、波付管30とナツト20が固定
される。このとき、波付管30をナツト20の奥側に向
けて移動させたときには、波付管30の谷部32の側面
が、ナツト20の爪部24の傾斜した側面に当接するこ
とにより、爪部24を押し上げ、爪片22を外周側に旋
回移動させる方向に力が作用するので、比較的スムーズ
に波付管30を差し込むことができる。しかし、波付管
30を逆方向に移動させようとすると、波付管30の谷
部32の側面が、ナツト20の爪部24の垂直な側面に
当接するので、外周側に押し上げる方向の力が作用せず
、しかも爪片22を中心側に向かって旋回させる方向に
力が作用するので、爪部24が余計に谷部32の奥に押
し付けられる。したがって、波付管30をナツト20に
挿入するのは容易であるが、−旦挿入された波付管30
をナツト20から引き抜くことは出来ない。That is, insert the corrugated tube 30 inside the nut 20,
The claw portion 24 of the nut 20 is engaged with the trough portion 32 on the outer surface of the corrugated tube 30, thereby fixing the corrugated tube 30 and the nut 20. At this time, when the corrugated tube 30 is moved toward the back side of the nut 20, the side surface of the trough portion 32 of the corrugated tube 30 comes into contact with the inclined side surface of the pawl portion 24 of the nut 20, so that the pawl Since force acts in the direction of pushing up the portion 24 and pivoting the claw piece 22 toward the outer circumference, the corrugated tube 30 can be inserted relatively smoothly. However, when trying to move the corrugated tube 30 in the opposite direction, the side surfaces of the trough portions 32 of the corrugated tube 30 come into contact with the vertical side surfaces of the claw portions 24 of the nut 20, so that a force is applied in the direction of pushing it up toward the outer circumference. does not act, and moreover, force acts in the direction of turning the claw piece 22 toward the center, so the claw portion 24 is pushed further into the valley portion 32. Therefore, although it is easy to insert the corrugated tube 30 into the nut 20, the corrugated tube 30 once inserted is
cannot be extracted from Natsuto 20.
波付管30をナツト20から取り外すには、前記第1図
において、ナット20を継手本体10に連結固定したと
きとは反対の方向、すなわち図中B方向に回す。そうす
ると、ナツト20の係合凸部28が係合溝50の固定部
54から解除部56に入る。解除部56は軸方向の奥に
向かって傾斜しているので、係合凸部28およびナツト
20は継手本体10の奥に向かって移動することになる
。この状態を第4図に示しており、解除部56に係合凸
部28が係合されているとともに、ナット20全体が継
手本体10の奥側に向かって移動している。ナット20
の内面では、爪片22先端の操作部26が、継手本体1
0の押動部14に向かって移動するので、操作部26が
押動部14の傾斜に沿って乗り上げ、爪片22全体が外
周側に向かって旋回することになる。爪片22が外周側
に旋回すると、爪部24も波付管30の谷部32から外
れて外周側に移動する。この状態で、波付管30をナツ
ト20から引き抜けば、全く抵抗なくスムーズに引き抜
くことができ、波付管30をすット20から取り外すこ
とができる。To remove the corrugated tube 30 from the nut 20, turn the nut 20 in the opposite direction to the direction shown in FIG. 1 when the nut 20 is connected and fixed to the joint body 10, that is, in the direction B in the figure. Then, the engagement convex portion 28 of the nut 20 enters the release portion 56 from the fixing portion 54 of the engagement groove 50. Since the release portion 56 is inclined toward the back in the axial direction, the engagement convex portion 28 and the nut 20 move toward the back of the joint body 10. This state is shown in FIG. 4, in which the engagement convex portion 28 is engaged with the release portion 56, and the entire nut 20 has moved toward the back side of the joint body 10. nut 20
On the inner surface of the joint body 1, the operating portion 26 at the tip of the claw piece 22
Since it moves toward the pushing part 14 of 0, the operating part 26 rides up along the slope of the pushing part 14, and the entire claw piece 22 turns toward the outer circumferential side. When the claw piece 22 turns to the outer circumferential side, the claw part 24 also comes off from the trough part 32 of the corrugated tube 30 and moves to the outer circumferential side. If the corrugated tube 30 is pulled out from the nut 20 in this state, it can be pulled out smoothly without any resistance, and the corrugated tube 30 can be removed from the nut 20.
波付管30を取り外した後、ナツト20を反対側に回し
て、前記第3図の状態に戻しておけば、爪片22の操作
部26は継手本体10の押動部14から離れて、爪部2
4も元の位置に戻るので、新たな波付管30を挿入して
連結固定することができる。また、ナツト20を第4図
の状態にしたままで、新たな波付管30を挿入した後、
ナット20を回し、第3図に示すように、爪片22の爪
部24が波付管30の谷部32に係合されるようにして
もよい。したがって、波付管用継手に最初に波付管を取
り付ける際にも、構造部材等に継手本体およびナットを
先に連結固定して取り付けておき、この取付済みのナッ
トに波付管を挿入して、前記したような操作で連結固定
することができる。After removing the corrugated tube 30, turn the nut 20 in the opposite direction to return it to the state shown in FIG. Claw part 2
4 also returns to its original position, so a new corrugated tube 30 can be inserted and connected and fixed. Also, after inserting a new corrugated tube 30 while leaving the nut 20 in the state shown in FIG.
By turning the nut 20, the claw portion 24 of the claw piece 22 may be engaged with the trough portion 32 of the corrugated tube 30, as shown in FIG. Therefore, when attaching a corrugated pipe to a corrugated pipe joint for the first time, first connect and fix the joint body and nut to a structural member, etc., and then insert the corrugated pipe into this already installed nut. , they can be connected and fixed by the operations described above.
以上に説明したように、この発明にかかる波付管用継手
では、使用中の何れの段階においても、継手本体10か
らナツト20を取り外す必要はなく、継手本体10にナ
ツト20を取り付けたままで、波付管30のみを自由に
取り付けたり取り外したりすることができる。As explained above, in the corrugated pipe joint according to the present invention, there is no need to remove the nut 20 from the joint body 10 at any stage during use, and the wave Only the attachment tube 30 can be freely attached or removed.
つぎに、第5図および第6図には、波付管30同士を直
線的に連結するために使用する波付管用継手の実施例を
示している。なお、基本的な構造は前記実施例と共通し
ているので、共通する部分には同じ符号を付け、相違す
る部分を主にして説明する。Next, FIGS. 5 and 6 show an embodiment of a corrugated pipe joint used to linearly connect corrugated pipes 30 to each other. The basic structure is the same as that of the previous embodiment, so common parts are given the same reference numerals, and different parts will be mainly explained.
前記実施例では、継手本体10の一端にナット連結部1
2を設け、他端には構造部材へ接続する雄ねじ部16を
設けていたが、この実施例では、継手本体10の中央に
筒状部19を設け、この筒状部19の両端に同一構造の
ナット連結部12をそれぞれ設けている。そして、各ナ
ツト連結部12にナツト20が取り付けられる。ナツト
連結部12や係合溝50等あるいはナツト20の構造は
前記実施例と同じであり、詳しい説明は省略するしたが
って、継手本体10の両側に取り付けられたナット20
に、それぞれ別の波付管30を連結固定すれば、波付管
30を直線的につなぐことができる。左右のナット20
およびナツト連結部12に、口径の異なるものを用いれ
ば、異径の波付管30同士を直線的につなぐことも可能
になる〔発明の効果〕
以上に述べた、この発明にかかる波付管用継手によれば
、ナツトの係合凸部と継手本体の係合溝との係合動作に
より、波付管を係合固定する爪片の爪部を、波付管外面
の谷部に係合させたり係合解除させたりすることができ
るようになるので、波付管の取り付けおよび取り外しが
極めて簡単かつ確実に行えるようになる。すなわち、ナ
ツトおよび波付管を継手本体に取り付けたままでも、ナ
ットを特定の方向に回すだけで、波付管の固定を解除し
て波付管を取り外すことができ、従来のように、まず、
継手本体からナットおよび波付管を取り外し、ついで波
付管を切断した後で、ナットから波付管を引ぎ抜くよう
な面倒な作業は不要になる。その結果、波付管の取り付
は取り外し作業が極めて簡単になり、作業の能率化を図
ることができる。しかも、ナットは継手本体から取り外
す必要がないので、取り外したナットを保管しておく手
間が掛からず、ナットを紛失する心配も解消される。さ
らに、ナットから波付管を取り外す際には、ナツトの爪
部を波付管の谷部から完全に外した状態にできるので、
従来のように、爪部と谷部が係合したまで波付管を引き
抜く必要はなく、小さな力でもスムーズに引き抜くこと
ができるとともに、引き抜き作業の際にナツトの爪部や
爪片を損傷したり変形させてしまったりする問題も解消
される。In the embodiment described above, the nut connecting portion 1 is provided at one end of the joint body 10.
2, and the other end was provided with a male threaded portion 16 that connects to a structural member, but in this embodiment, a cylindrical portion 19 is provided in the center of the joint body 10, and the same structure is provided at both ends of this cylindrical portion 19. Nut connecting portions 12 are provided respectively. Then, a nut 20 is attached to each nut connecting portion 12. The structure of the nut connecting portion 12, the engagement groove 50, etc., or the nut 20 is the same as in the previous embodiment, and detailed explanation will be omitted. Therefore, the nut 20 attached to both sides of the joint body 10
By connecting and fixing different corrugated tubes 30, the corrugated tubes 30 can be connected linearly. Left and right nuts 20
By using nuts with different diameters as the nut connecting portions 12, it becomes possible to linearly connect corrugated tubes 30 of different diameters. [Effects of the Invention] According to the joint, the claws of the claws that engage and fix the corrugated pipe are engaged with the troughs on the outer surface of the corrugated pipe by the engaging action between the engaging protrusion of the nut and the engaging groove of the joint body. Since the corrugated tube can be engaged and disengaged, the corrugated tube can be installed and removed extremely easily and reliably. In other words, even if the nut and corrugated tube are attached to the fitting body, by simply turning the nut in a specific direction, you can release the fixation of the corrugated tube and remove it. ,
The troublesome work of removing the nut and corrugated tube from the joint body, cutting the corrugated tube, and then pulling out the corrugated tube from the nut is no longer necessary. As a result, the work of attaching and removing the corrugated pipe becomes extremely simple, and the work can be made more efficient. Furthermore, since there is no need to remove the nut from the joint body, there is no need to store the removed nut, and the worry of losing the nut is eliminated. Furthermore, when removing the corrugated tube from the nut, the nail part of the nut can be completely removed from the trough of the corrugated tube.
Unlike conventional methods, it is not necessary to pull out the corrugated tube until the claws and troughs are engaged, and it can be pulled out smoothly even with a small amount of force. This also solves the problem of deformation.
【図面の簡単な説明】
第1図はこの発明の実施例を示す斜視図、第2図は半断
面側面図、第3図は波付管を固定した状態の要部拡大断
面図、第4図は波付管の固定を解除した状態の要部拡大
断面図、第5図は別の実施例を示す斜視図、第6図は半
断面側面図、第7図は従来例の斜視図、第8図は使用状
態の断面図、第9図はナツトと波付管の取り外し方法を
示す断面図である。
10・・・継手本体 14・・・押動部゛ 20・・・
ナツト22・・・爪片 24・・・爪部 26・・・操
作部 28・・・係合凸部 30・・・波付管 32・
・・谷部 50・・・係合溝 52・・・導入部 54
・・・固定部 56・・・解除部
代理人 弁理士 松 本 武 彦
零ト糸宍ネ甫正書(自発)
1.11牛の耘
特願平 2−226864号
2、発明の名称
波付管用継手
3、補正をする者
種牛との関係 特許出願人
住 所 大阪府門真市大字門真1048番地
名 称(583)松下電工株式会社
代表者 ((Jm役三好 俊夫
4、代理人
6、補正の対象
明細書
7、補正の内容
■ 明細書第15頁第7行と第8行の間に下記の文章を
挿入する。
記
「 なお、ナットから波付管を引き抜いた後、ナットを
回して、係合凸部が継手本体の固定部に係合されるよう
にすれば、爪片および爪部は、元のように、波付管の谷
部に係止可能な状態、すなわち前記した通常の波付管継
手と同じ状態に戻る。
したがって、この状態で、別の波付管をナットの内部に
挿入すれば、波付管の谷部にナットの爪部が係止されて
、波付管をナットに固定できることは言うまでもない。
」
■ 明細書第15頁第12行に1状態およ係合」とある
を、「状態および係合」と訂正する。[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a half-sectional side view, Fig. 3 is an enlarged sectional view of the main part with the corrugated pipe fixed, and Fig. 4 is a perspective view showing an embodiment of the present invention. The figure is an enlarged sectional view of the main part of the corrugated tube in a state where the fixation is released, FIG. 5 is a perspective view showing another embodiment, FIG. 6 is a half-sectional side view, and FIG. 7 is a perspective view of the conventional example. FIG. 8 is a sectional view of the device in use, and FIG. 9 is a sectional view showing how to remove the nut and corrugated tube. 10... Joint body 14... Pushing part 20...
Nut 22...Claw piece 24...Claw part 26...Operation part 28...Engagement convex part 30...Corrugated tube 32.
...Trough 50...Engagement groove 52...Introduction part 54
...Fixed part 56...Releasing part agent Patent attorney Takehiko Matsumoto Reito Shishineho Seisho (self-sponsored) 1.11 Ushi no Go Tokuganhei 2-226864 No. 2, name of invention with wave Pipe joint 3, relationship between the person making the amendment and the breeding cow Patent applicant address 1048 Oaza Kadoma, Kadoma City, Osaka Name (583) Representative of Matsushita Electric Works Co., Ltd. ((Jm Toshio Miyoshi 4, agent 6, amendment Subject specification 7, contents of amendment ■ Insert the following sentence between lines 7 and 8 on page 15 of the specification. ``In addition, after pulling out the corrugated tube from the nut, turn the nut, If the engaging protrusion is engaged with the fixed part of the joint body, the claw piece and the claw part can be locked in the trough of the corrugated pipe as before, that is, in the normal state described above. It returns to the same state as the corrugated pipe joint. Therefore, in this state, if another corrugated pipe is inserted inside the nut, the claws of the nut will be locked to the valleys of the corrugated pipe, and the corrugated pipe will close. Needless to say, it can be fixed to the nut.'' ■ On page 15, line 12 of the specification, the phrase ``1 state and engagement'' is corrected to ``state and engagement.''
Claims (1)
なり、ナットの内面には、継手本体への連結側と反対側
になる端部側を基点にして軸方向に延び弾力的に旋回可
能な爪片、および、爪片の先端でナットの中心に向かっ
て突出した爪部を備えてなり、波付管をナット内に挿入
し、前記爪部を波付管外面の谷部に係止して、波付管と
ナットを固定する波付管用継手において、ナットの爪片
には先端が軸方向に突出する操作部を備え、ナットの内
面で爪部と別の位置には係合凸部を備えており、継手本
体の外周面にはナットの係合凸部と摺動自在に係合する
係合溝を備え、この係合溝は、継手本体の端縁から軸方
向につづく導入部と、導入部の端部から軸方向と直交す
る周方向につづく固定部と、導入部の端部から周方向に
対して継手本体の奥側に傾斜する方向につづく解除部と
からなり、さらに、継手本体の端部には、先細り状をな
し、ナットの前記操作部に当接する押動部を備えている
ことを特徴とする波付管用継手。1 Consists of a joint body and a cylindrical nut that can be freely connected to the joint body, and the inner surface of the nut has a nut that extends in the axial direction and can pivot elastically from the end side opposite to the side connected to the joint body. and a claw part that protrudes toward the center of the nut at the tip of the claw piece, the corrugated tube is inserted into the nut, and the claw part is locked in the trough on the outer surface of the corrugated tube. In a corrugated pipe joint that fixes a corrugated pipe and a nut, the claw piece of the nut has an operating part whose tip protrudes in the axial direction, and the inner surface of the nut has an engaging protrusion at a position different from the claw part. The outer peripheral surface of the joint body is provided with an engagement groove that slidably engages with the engagement convex part of the nut, and this engagement groove extends in the axial direction from the edge of the joint body. a fixing part that extends from the end of the introduction part in a circumferential direction perpendicular to the axial direction, and a release part that continues from the end of the introduction part in a direction inclined toward the back of the joint body with respect to the circumferential direction, Furthermore, the joint for a corrugated pipe is characterized in that the end of the joint main body is provided with a pushing part that is tapered and comes into contact with the operating part of the nut.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2226864A JPH0633843B2 (en) | 1990-08-28 | 1990-08-28 | Corrugated pipe fitting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2226864A JPH0633843B2 (en) | 1990-08-28 | 1990-08-28 | Corrugated pipe fitting |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04107391A true JPH04107391A (en) | 1992-04-08 |
JPH0633843B2 JPH0633843B2 (en) | 1994-05-02 |
Family
ID=16851770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2226864A Expired - Lifetime JPH0633843B2 (en) | 1990-08-28 | 1990-08-28 | Corrugated pipe fitting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0633843B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07231533A (en) * | 1993-12-24 | 1995-08-29 | Mirai Ind Co Ltd | Pipe coupling |
JP2006090522A (en) * | 2004-09-27 | 2006-04-06 | Matsushita Electric Works Ltd | Connector device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102518261B1 (en) * | 2021-08-24 | 2023-04-05 | (주)통일화학 | Drain trap |
-
1990
- 1990-08-28 JP JP2226864A patent/JPH0633843B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07231533A (en) * | 1993-12-24 | 1995-08-29 | Mirai Ind Co Ltd | Pipe coupling |
JP2006090522A (en) * | 2004-09-27 | 2006-04-06 | Matsushita Electric Works Ltd | Connector device |
JP4517803B2 (en) * | 2004-09-27 | 2010-08-04 | パナソニック電工株式会社 | Connector device |
Also Published As
Publication number | Publication date |
---|---|
JPH0633843B2 (en) | 1994-05-02 |
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