JPH09280467A - Pipe fittings - Google Patents
Pipe fittingsInfo
- Publication number
- JPH09280467A JPH09280467A JP8119707A JP11970796A JPH09280467A JP H09280467 A JPH09280467 A JP H09280467A JP 8119707 A JP8119707 A JP 8119707A JP 11970796 A JP11970796 A JP 11970796A JP H09280467 A JPH09280467 A JP H09280467A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- resin
- pipe
- joint
- joint portion
- 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
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
(57)【要約】
【課題】 金属インサート成形される樹脂継手部
（２）と金属継手部（４）とで構成される管継手におけ
る金属インサート部からの漏れ、金属継手部（４）の抜
けを防止する。
【解決手段】 金属インサート成形により製造される
樹脂継手部（２）と金属継手部（４）から成る管継手に
おいて、樹脂継手部（２）の金属インサート部の境界部
（１３）外面に段差（１５）を設けると共に、樹脂継手
部（２）の少なくとも境界部（１３）外面にプレス加工
された金属リングを二次加工で嵌着締付ける。
(57) [Abstract] [PROBLEMS] Leakage from a metal insert portion and dropout of a metal joint portion (4) in a pipe joint formed of a resin joint portion (2) and a metal joint portion (4) to be metal insert molded. Prevent. In a pipe joint including a resin joint portion (2) and a metal joint portion (4) manufactured by metal insert molding, a step () is formed on the outer surface of a boundary portion (13) of the metal insert portion of the resin joint portion (2). 15) is provided, and a metal ring pressed on at least the outer surface of the boundary portion (13) of the resin joint portion (2) is fitted and tightened by secondary processing.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、上下水道やガスの
配管に用いられる樹脂配管と金属配管又は樹脂配管とバ
ルブやメータなどの接続口（金属管）を接合させる技術
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for joining resin pipes and metal pipes used for water and sewerage or gas pipes, or joining resin pipes and connection ports (metal pipes) such as valves and meters.
【０００２】[0002]
【従来の技術】従来、金属インサート成形（射出成形）
により製造される樹脂継手部と金属継手部から成る管継
手があった。2. Description of the Related Art Conventionally, metal insert molding (injection molding)
There was a pipe joint made up of a resin joint and a metal joint.
【０００３】[0003]
【発明が解決しようとする課題】前記従来技術は、金属
インサート成形の前処理として、金属継手部の樹脂との
接触面に親和性の良いアドマー層を形成しているが、樹
脂と金属との熱膨張量の差、樹脂継手部の金属インサー
ト部との境界部に対し、樹脂管からの曲げ荷重、金属管
からの振動荷重が集中的に働くこと、さらには樹脂管と
樹脂継手部との接合を融着によって行う場合にも前記境
界部に高い内圧が働くこと、などによって金属面より樹
脂が剥離し、樹脂継手部の金属インサート部からの漏れ
並びに金属継手部の抜け、などが発生する恐れがあっ
た。In the above prior art, as a pretreatment for metal insert molding, an admer layer having a good affinity is formed on the contact surface of the metal joint portion with the resin. The difference in the amount of thermal expansion, the bending load from the resin pipe and the vibration load from the metal pipe work intensively on the boundary between the resin insert and the metal insert. Even when the joining is performed by fusion, a high internal pressure acts on the boundary portion, the resin is peeled off from the metal surface, and leakage from the metal insert portion of the resin joint portion and disconnection of the metal joint portion occur. I was afraid.
【０００４】[0004]
【課題を解決するための手段】然るに、本発明は、金属
インサート成形により製造される樹脂継手部と金属継手
部から成る管継手において、樹脂継手部の金属インサー
ト部の境界部外面に段差を設けると共に、樹脂継手部の
少なくとも境界部外面にプレス加工された金属リングを
二次加工で嵌着締付け、樹脂継手部の金属インサート部
の境界部の機械的強度を高め、且つ、この強度を保持す
ることによって、樹脂継手部の金属インサート部からの
漏れ並びに金属継手部の抜け、などを防止し得るもので
ある。SUMMARY OF THE INVENTION Therefore, according to the present invention, in a pipe joint including a resin joint portion and a metal joint portion manufactured by metal insert molding, a step is provided on the outer surface of the boundary portion of the metal insert portion of the resin joint portion. At the same time, a metal ring press-formed on at least the outer surface of the boundary portion of the resin joint portion is fitted and tightened by secondary processing to increase the mechanical strength of the boundary portion of the metal insert portion of the resin joint portion and maintain this strength. By doing so, it is possible to prevent leakage from the metal insert portion of the resin joint portion and disconnection of the metal joint portion.
【０００５】また、樹脂継手部の樹脂管との接触面には
通電によって加熱される発熱体を設け、樹脂継手部と樹
脂管を電気融着で接合させることによって、該接合部か
らの漏れ並びに樹脂管の抜け、などを防止し得るもので
ある。Further, a heating element which is heated by energization is provided on the contact surface of the resin joint portion with the resin pipe, and the resin joint portion and the resin pipe are joined by electric fusion to prevent leakage from the joint portion. It is possible to prevent the resin pipe from coming off.
【０００６】さらに、プレス加工された金属リングを二
次加工で締付けることにより、金属リングを安価に得ら
れ、大幅なコストダウンを図り得るものである。Further, by tightening the pressed metal ring by the secondary processing, the metal ring can be obtained at a low cost and the cost can be greatly reduced.
【０００７】尚、金属リングの材質は耐食性に秀れたス
テンレスを用いることが好ましく、且つ、外形は配管作
業時にスパナ等の配管工具を掛けることができるように
多角形とすることが好ましい。The metal ring is preferably made of stainless steel having excellent corrosion resistance, and the outer shape is preferably polygonal so that a piping tool such as a spanner can be hooked during piping work.
【０００８】[0008]
【発明の実施の形態】以下本発明の実施例を図面に基づ
いて詳述する。図１は本発明に係る管継手の一例を示す
ものであって、合成樹脂管（１）と接合させる合成樹脂
継手部（２）と、金属管（３）と接合させる金属継手部
（４）とで構成され、樹脂継手部（２）の筒状の樹脂継
手ボディー（５）の一端部に金属継手部（４）の筒状の
金属継手ボディー（６）の一端部が嵌り込み、樹脂継手
部（２）と金属継手部（４）とが一体に連結されてい
る。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an example of a pipe joint according to the present invention, in which a synthetic resin joint portion (2) joined to a synthetic resin pipe (1) and a metal joint portion (4) joined to a metal pipe (3). And the one end of the tubular metal joint body (6) of the metal joint portion (4) is fitted into the one end of the tubular resin joint body (5) of the resin joint portion (2). The part (2) and the metal joint part (4) are integrally connected.
【０００９】前記金属継手ボディー（６）の樹脂継手ボ
ディー（５）の一端部に嵌り込む一端部外周面には複数
のリング溝（７）（７）が設けられ、樹脂継手部（２）
と金属継手部（４）とを凹凸面で接合させ、樹脂継手部
（２）からの金属継手部（４）の抜け止め効果を得てい
る。また前記金属継手ボディー（６）の樹脂継手ボディ
ー（５）の一端部より突出する先端部には金属管（３）
に対する接合手段が設けられ、この接合手段は図に示し
たオネジ（８）の他、メネジ、ユニオンなど、周知の各
種管継手に用いられる金属管との接合手段を適用するこ
とができると共に、金属継手ボディー（６）の形状も図
に示したストレートの他、エルボ、ベンドど、周知の各
種管継手に用いられる形状を適用することができる。さ
らに金属継手ボディー（６）の材料も鋳鉄、鋼、銅合金
など、周知の各種管継手に用いられる材料を適用するこ
とができる。A plurality of ring grooves (7) and (7) are provided on the outer peripheral surface of one end of the metal joint body (6) which fits into one end of the resin joint body (5), and the resin joint portion (2) is provided.
The metal joint portion (4) and the metal joint portion (4) are joined to each other on the uneven surface, and the metal joint portion (4) is prevented from coming off from the resin joint portion (2). Further, the metal pipe (3) is attached to the tip of the metal joint body (6) protruding from one end of the resin joint body (5).
A connecting means for connecting to a metal pipe used for various well-known pipe fittings such as a female screw and a union in addition to the male screw (8) shown in the drawing can be applied to this connecting means. As the shape of the joint body (6), in addition to the straight shape shown in the drawing, an elbow, a bend, and the like, which are used for various known pipe joints, can be applied. Further, as the material of the metal joint body (6), materials used for various well-known pipe joints such as cast iron, steel, and copper alloy can be applied.
【００１０】尚、金属製の管継手構造を有する前記金属
継手部（４）に接合させる金属管（３）は、バルブ、メ
ータなど配管用付属品の筒状で金属製の配管接続口、鋳
鉄管など金属配管、ステンレス製のフレキシブル管、な
どの金属配管、タンク、ポンプなど配管構成要素の筒状
で金属製の配管接続口など、配管系の樹脂管と接続され
る全ての金属管が含まれる。The metal pipe (3) to be joined to the metal joint portion (4) having a metal pipe joint structure is a tubular metal pipe connection port for pipe accessories such as valves and meters, cast iron. Includes all metal pipes that are connected to the resin pipe of the piping system, such as metal pipes such as pipes, metal pipes such as stainless steel flexible pipes, and tubular metal pipe connection ports for piping components such as tanks and pumps. Be done.
【００１１】一方、樹脂継手ボディー（５）の内周面よ
り金属継手ボディー（６）の嵌り込み端面に沿ってリン
グ状の管座（９）が張出形成され、樹脂継手ボディー
（５）の一端より管座（９）までに金属継手ボディー
（６）のリング溝（７）（７）を外周面に設けた一端部
が嵌り込み、その管座（９）より樹脂継手ボディー
（５）の他端までに樹脂管（１）の管端を受入れる受入
れ部（１０）が形成されている。On the other hand, a ring-shaped pipe seat (9) is formed so as to project from the inner peripheral surface of the resin joint body (5) along the fitted end face of the metal joint body (6), and One end of the metal joint body (6) provided with the ring grooves (7) and (7) on the outer peripheral surface is fitted from one end to the pipe seat (9), and the pipe seat (9) connects the resin joint body (5) to the pipe joint (5). A receiving portion (10) for receiving the pipe end of the resin pipe (1) is formed up to the other end.
【００１２】尚、樹脂継手ボディー（５）の管座（９）
部の内径は樹脂管（１）及び金属継手ボディー（６）の
内径と同じに形成され、樹脂継手部（２）に樹脂管
（１）を接合させたとき、樹脂管（１）から金属継手ボ
ディー（６）にかけて周壁に段差（凹凸）がない一本の
管路を形成し、流体の流通性を妨げないようにしてい
る。The pipe seat (9) of the resin joint body (5)
The inner diameter of the portion is formed to be the same as the inner diameter of the resin pipe (1) and the metal joint body (6), and when the resin pipe (1) is joined to the resin joint portion (2), the resin pipe (1) is connected to the metal joint. A single conduit having no steps (irregularities) is formed on the peripheral wall of the body (6) so as not to impede fluid flowability.
【００１３】前記樹脂継手ボディー（５）の受入れ部
（１０）の中間部内面には樹脂管（１）に対する接合手
段が設けられ、この接合手段は図２及び図３に示すよう
に、ニッケルなどの導線（１１ａ）の周囲にガラス繊維
網組などによる絶縁層（１１ｂ）を介して合成樹脂被膜
（１１ｃ）が被覆された一本の発熱線を中間部で折り返
して円柱面に沿って螺線状に巻回し、筒状に保形された
発熱体（１１）で構成され、この発熱体（１１）は発熱
線の両端が樹脂継手ボディー（５）の樹脂管差し込み口
側に位置する状態で樹脂管差し込み口より所定寸法入っ
た位置より管座（９）の所定寸法手前までの樹脂継手ボ
ディー（５）の受入れ部（１０）内面に装着され、樹脂
継手ボディー（５）の樹脂管差し込み口端面に一端に開
放されたコネクタ接続穴（１２）の内部に発熱体（１
１）の発熱線の両端に取付けた一対の接続端子（１１
ｄ）が突出固定されており、樹脂継手部（２）を所謂エ
レクトロフュージョン継手に構成している。A joint means for the resin pipe (1) is provided on the inner surface of the intermediate portion of the receiving portion (10) of the resin joint body (5), and the joint means is nickel or the like as shown in FIGS. 2 and 3. A single heating wire covered with a synthetic resin coating (11c) around the conductor wire (11a) through an insulating layer (11b) made of a glass fiber braid, etc. is folded back at the intermediate portion and spirally wound along the cylindrical surface. It is composed of a heating element (11) that is wound in a circular shape and is retained in a cylindrical shape. This heating element (11) is positioned with both ends of the heating wire positioned on the resin pipe insertion port side of the resin joint body (5). The resin pipe insertion port of the resin joint body (5) is mounted on the inner surface of the receiving portion (10) of the resin joint body (5) from a position where the resin pipe insertion port has a predetermined dimension to a predetermined dimension before the pipe seat (9). Connector is open on one end and is open on one end Inside heating element bore (12) (1
1) A pair of connection terminals (11
d) is fixed so as to project, and the resin joint portion (2) is configured as a so-called electrofusion joint.
【００１４】前記の管継手は、金属継手部（４）の先端
にパッキン、シールテープなどを介して金属管（３）の
管端をねじ込み接合させる一方、樹脂継手部（２）に樹
脂管（１）の管端を端面が管座（９）に当接するまで差
し込み、その後、電源（１３）に接続した制御装置（１
４）を端子（１１ｄ）（１１ｄ）に接続し、発熱体（１
１）への通電量を制御しながらこれを所定温度まで加熱
し、樹脂管（１）と樹脂継手部（２）の樹脂を加熱溶融
して両者を融着させ、樹脂管（１）と金属管（３）との
接合を行うものであるが、樹脂継手部（２）と金属継手
部（４）から成る管継手はその材質から外気温に対する
熱膨張量が大きく相違することや、樹脂管（１）の特性
であるたわみによって樹脂継手部（１）の金属インサー
ト部との境界部（１３）（管座（９）部分）に対し集中
的に曲げ荷重が働くことや、逆に金属管（３）側からの
振動荷重も前記境界部（１３）に集中的に働き、さらに
は樹脂管（１）と樹脂継手部（２）との融着時の樹脂の
熱膨張によって高い内圧が発生し、この内圧が前記境界
部（１３）に集中的に働くことなどによって、金属面よ
り樹脂が剥離し、樹脂継手部（２）の金属インサート部
からの漏れ並びに金属継手部（４）の抜け、などが発生
する恐れがあった。In the pipe joint, the pipe end of the metal pipe (3) is screwed and joined to the tip of the metal joint portion (4) through packing, seal tape, etc., while the resin pipe ( The control device (1) in which the pipe end of (1) is inserted until the end face abuts on the pipe seat (9) and then connected to the power supply (13).
4) is connected to the terminals (11d) (11d), and the heating element (1
1) is heated to a predetermined temperature while controlling the amount of electricity supplied to the resin pipe, and the resin of the resin pipe (1) and the resin joint portion (2) is heated and melted to fuse the two, and the resin pipe (1) and the metal Although it is joined to the pipe (3), the pipe joint consisting of the resin joint portion (2) and the metal joint portion (4) has a great difference in the thermal expansion amount with respect to the ambient temperature due to its material, and the resin pipe. The bending which is the characteristic of (1) causes a concentrated bending load to act on the boundary portion (13) (pipe seat (9) portion) of the resin joint portion (1) with the metal insert portion, and conversely, the metal pipe. A vibration load from the (3) side also acts intensively on the boundary portion (13), and further, a high internal pressure is generated by the thermal expansion of the resin when the resin pipe (1) and the resin joint portion (2) are fused. However, the internal pressure is concentrated on the boundary portion (13), so that the resin peels from the metal surface, Leakage and metal joint portion of the metal insert portion of the fat joint (2) omission of (4), such that may occur.
【００１５】そこで、本発明では、図１に示すように、
樹脂継手部（２）の管座（９）部分の外周面に、受入れ
部（１０）側が厚肉で金属継手ボディー（６）外周面側
が薄肉となるような、段差（１５）を設け、樹脂継手部
（２）の前記境界部（１３）の機械的強度を高めると共
に、樹脂継手部（２）の金属継手部（４）の連結端部よ
り少なくとも前記境界部（１３）の外周面を覆う前記段
差（１５）に沿う多段を中間部に有する図４に示すよう
な、金属リング（１６）を嵌合締付けし、樹脂継手部
（１）の前記境界部（１３）の機械的強度をさらに高
め、且つ、この強度を保持することによって、樹脂継手
部（２）の金属インサート部からの漏れ並びに金属継手
部（４）の抜け、などを防止するように構成している。Therefore, in the present invention, as shown in FIG.
A step (15) is provided on the outer peripheral surface of the pipe seat (9) of the resin joint portion (2) such that the receiving portion (10) side is thick and the metal joint body (6) outer peripheral surface side is thin. The mechanical strength of the boundary part (13) of the joint part (2) is increased, and at least the outer peripheral surface of the boundary part (13) is covered by the connecting end part of the metal joint part (4) of the resin joint part (2). A metal ring (16) having multiple steps along the step (15) at an intermediate portion is fitted and tightened to further increase the mechanical strength of the boundary portion (13) of the resin joint portion (1). By increasing the strength and maintaining this strength, it is configured to prevent leakage from the metal insert portion of the resin joint portion (2) and disconnection of the metal joint portion (4).
【００１６】前記金属リング（１６）は一次加工でステ
ンレス製の短い管をプレス加工によって段付けし、樹脂
継手部（２）の嵌合面に沿うこれより少し大径の形状が
与えられ、二次加工で樹脂継手部（２）外面にロール絞
りやかしめによって締付けられ、削り出し品に比べて金
属リング（１６）の製造コストが大幅に安くなってい
る。また金属リング（１６）がステンレス製で耐食性に
秀れ長期にわたって機能保持が行えるものである。また
金属リング（１６）の外面を図５に示すように多角形と
することによって配管作業時にスパナ等の配管工具を掛
けることができ、金属継手部（４）の金属管（３）との
接合手段がユニオンなどの場合に有効である。The metal ring (16) is formed by a step of press-working a short pipe made of stainless steel in the primary processing, and is given a shape with a diameter slightly larger than that along the fitting surface of the resin joint portion (2). In the next processing, the outer surface of the resin joint (2) is tightened by roll drawing or caulking, and the manufacturing cost of the metal ring (16) is significantly lower than that of the machined product. Further, the metal ring (16) is made of stainless steel, which has excellent corrosion resistance and can retain its function for a long period of time. Further, by forming the outer surface of the metal ring (16) into a polygonal shape as shown in FIG. 5, it is possible to hang a piping tool such as a spanner during piping work, and to join the metal joint (4) with the metal pipe (3). This is effective when the means is a union.
【００１７】前記の管継手は、中に金属継手ボディー
（６）をセットした金型の中に流動状態の熱可塑性の成
形材料を圧入し、金属リング（１６）を装着する前の樹
脂継手部（２）と金属継手部（４）から成る管継手を成
形（金属インサート成形）した後、金属リング（１６）
を樹脂継手部（２）に嵌着締付けして製造される。The above-mentioned pipe joint is a resin joint portion before a metal ring (16) is mounted by press-fitting a thermoplastic molding material in a fluid state into a mold in which a metal joint body (6) is set. After molding (metal insert molding) a pipe joint comprising (2) and the metal joint portion (4), a metal ring (16)
Is fitted to the resin joint portion (2) and tightened.
【００１８】尚、一次加工された金属リング（１６）の
最小内径は金属継手部（４）の最大外径より少し大径に
成形され、金属継手部（４）の端部から樹脂継手部
（２）の外面に嵌着できるようになっている。また樹脂
継手部（２）と発熱体（１１）を有するエレクトロフュ
ージョン継手構造にする際には、この発熱体（１１）を
金属継手ボディー（６）と共に金属の中にセットする場
合と、樹脂継手部（２）の内面に発熱体（１１）の装着
溝を成形時に形成しておき、成形後発熱体（１１）を嵌
め込む場合がある。Incidentally, the minimum inner diameter of the metal ring (16) that has been primarily processed is formed to be slightly larger than the maximum outer diameter of the metal joint portion (4), and the resin joint portion (from the end portion of the metal joint portion (4) to It can be fitted on the outer surface of 2). When the electrofusion joint structure having the resin joint portion (2) and the heating element (11) is formed, the heating element (11) is set in the metal together with the metal joint body (6), and the resin joint is set. There is a case where a mounting groove for the heating element (11) is formed on the inner surface of the portion (2) at the time of molding and the heating element (11) is fitted after the molding.
【００１９】また、樹脂継手部（２）の成形材料及び発
熱体（１１）の発熱線の被膜（４ｃ）材料は接合する樹
脂管（１）の成形材料と同じ材料が用いられ、例えばポ
リエチレン管の場合には、樹脂継手部（２）及び発熱線
の被膜（４ｃ）の成形材料もポリエチレン製となる。The molding material of the resin joint part (2) and the coating material (4c) of the heating wire of the heating element (11) are the same as the molding material of the resin pipe (1) to be joined, for example, polyethylene pipe. In this case, the molding material of the resin joint portion (2) and the coating of the heating wire (4c) is also made of polyethylene.
【００２０】[0020]
【発明の効果】以上実施例から明らかなように本発明
は、金属インサート成形により製造される樹脂継手部
（２）と金属継手部（４）から成る管継手において、樹
脂継手部（２）の金属インサート部の境界部（１３）外
面に段差（１５）を設けると共に、樹脂継手部（２）の
少なくとも境界部（１３）外面にプレス加工された金属
リングを二次加工で嵌着締付け、樹脂継手部（２）の境
界部（１３）の機械的強度を高め、且つ、この強度を保
持することによって、樹脂継手部（２）の金属インサー
ト部からの漏れ並びに金属継手部（４）の抜け、などを
防止できるものである。As is apparent from the above embodiments, the present invention is a pipe joint comprising a resin joint portion (2) and a metal joint portion (4) manufactured by metal insert molding. A step (15) is provided on the outer surface of the boundary portion (13) of the metal insert portion, and a metal ring pressed on at least the outer surface of the boundary portion (13) of the resin joint portion (2) is fitted and tightened by secondary processing. By increasing the mechanical strength of the boundary part (13) of the joint part (2) and maintaining this strength, leakage from the metal insert part of the resin joint part (2) and disconnection of the metal joint part (4). , Etc. can be prevented.
【００２１】また、樹脂継手部（２）の樹脂管（１）と
の接触面には通電によって加熱される発熱体（１１）を
設け、樹脂継手部（２）と樹脂管（１）を電気融着で接
合させることによって、該接合部からの漏れ並びに樹脂
管の抜け、などを防止できるものである。Further, a heating element (11) heated by energization is provided on the contact surface of the resin joint portion (2) with the resin pipe (1) to electrically connect the resin joint portion (2) and the resin pipe (1). By joining by fusion, it is possible to prevent leakage from the joined portion and disconnection of the resin pipe.
【図１】本発明に係る管継手の一例を示す断面側面図。FIG. 1 is a sectional side view showing an example of a pipe joint according to the present invention.
【図２】発熱体の外観図。FIG. 2 is an external view of a heating element.
【図３】発熱線の説明図。FIG. 3 is an explanatory diagram of a heating line.
【図４】金属リングの外観図。FIG. 4 is an external view of a metal ring.
【図５】金属リングの断面図。FIG. 5 is a sectional view of a metal ring.
（１） 樹脂管 （２） 樹脂継手部 （３） 金属管 （４） 金属継手部 （１１） 発熱体 （１５） 段差 （１６） 金属リング (1) Resin pipe (2) Resin joint part (3) Metal pipe (4) Metal joint part (11) Heating element (15) Step (16) Metal ring
Claims (2)
脂継手部と金属継手部から成る管継手において、樹脂継
手部の金属インサート部の境界部外面に段差を設けると
共に、樹脂継手部の少なくとも境界部外面にプレス加工
された金属リングを二次加工で嵌着締付けすることを特
徴とする管継手。1. In a pipe joint comprising a resin joint portion and a metal joint portion manufactured by metal insert molding, a step is provided on a boundary outer surface of the metal insert portion of the resin joint portion, and at least a boundary outer surface of the resin joint portion. A pipe joint characterized in that a metal ring that has been press-processed on is fitted and tightened by secondary processing.
によって加熱される発熱体を設けることを特徴とする請
求項１記載の管継手。2. The pipe joint according to claim 1, wherein a heating element heated by energization is provided on a contact surface of the resin joint portion with the resin pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8119707A JP2916892B2 (en) | 1996-04-16 | 1996-04-16 | Pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8119707A JP2916892B2 (en) | 1996-04-16 | 1996-04-16 | Pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09280467A true JPH09280467A (en) | 1997-10-31 |
| JP2916892B2 JP2916892B2 (en) | 1999-07-05 |
Family
ID=14768112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8119707A Expired - Lifetime JP2916892B2 (en) | 1996-04-16 | 1996-04-16 | Pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2916892B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019534024A (en) * | 2016-11-11 | 2019-11-28 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Electronic vaping equipment and connector assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0562797U (en) * | 1992-01-31 | 1993-08-20 | 株式会社栗本鐵工所 | Union socket for plastic pipes |
-
1996
- 1996-04-16 JP JP8119707A patent/JP2916892B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0562797U (en) * | 1992-01-31 | 1993-08-20 | 株式会社栗本鐵工所 | Union socket for plastic pipes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019534024A (en) * | 2016-11-11 | 2019-11-28 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Electronic vaping equipment and connector assembly |
| US11245235B2 (en) | 2016-11-11 | 2022-02-08 | Altria Client Services Llc | Electronic vaping device and connector assembly |
| US11962113B2 (en) | 2016-11-11 | 2024-04-16 | Altria Client Services Llc | Electronic vaping device and connector assembly |
| US12316052B2 (en) | 2016-11-11 | 2025-05-27 | Altria Client Services Llc | Electronic vaping device and connector assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2916892B2 (en) | 1999-07-05 |
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