JP2003320586A - Electricity control apparatus and connector for electric fusion coupling - Google Patents
Electricity control apparatus and connector for electric fusion couplingInfo
- Publication number
- JP2003320586A JP2003320586A JP2002128331A JP2002128331A JP2003320586A JP 2003320586 A JP2003320586 A JP 2003320586A JP 2002128331 A JP2002128331 A JP 2002128331A JP 2002128331 A JP2002128331 A JP 2002128331A JP 2003320586 A JP2003320586 A JP 2003320586A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- female
- connector
- terminal
- electrodes
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/87—Auxiliary operations or devices
- B29C66/874—Safety measures or devices
- B29C66/8742—Safety measures or devices for operators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
- B29C66/967—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes
- B29C66/9672—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes involving special data inputs, e.g. involving barcodes, RFID tags
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は熱可塑性樹脂管を電
気融着継手を用いて融着接合する際に用いる電気融着継
手用の通電制御装置及びコネクターに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current control device and a connector for an electric fusion joint, which is used when a thermoplastic resin pipe is fusion-bonded using the electric fusion joint.
【０００２】[0002]
【従来の技術】従来、ポリエチレン管などの熱可塑性樹
脂管の融着接合には、電気融着継手が一般的に用いられ
ている。電気融着継手とは、継手内部に電熱線を埋設し
た継手をいう。2. Description of the Related Art Conventionally, an electric fusion joint is generally used for fusion bonding of thermoplastic resin pipes such as polyethylene pipes. The electric fusion-bonded joint is a joint in which a heating wire is embedded inside the joint.
【０００３】電気融着継手には、内部に埋設された電熱
線に電気を流すため、通電制御装置に繋がる出力ケーブ
ルの先端部差込口（コネクター）と、電熱線を接続する
ための電気融着継手の被差込口（ターミナル）が各継手
毎に２ヵ所設置されている。In the electric fusion joint, electricity is applied to the heating wire embedded in the inside, so that the electric fusion wire for connecting the heating wire to the tip end insertion port (connector) of the output cable connected to the energization control device. There are two insertion ports (terminals) for each fitting.
【０００４】電気融着継手の融着時間制御方式には、自
己制御方式と時間制御方式の２つの方法がある。自己制
御方式には２つの方法があり、圧力検知方式が特開昭６
０−１９８２２４号公報に、温度検知方式が特開平４−
３６６０８８号公報に提案されている。There are two methods for controlling the fusion time of the electric fusion joint, a self-control method and a time control method. There are two self-control methods, and the pressure detection method is Japanese Patent Laid-Open No.
No. 0-198224 discloses a temperature detection method.
It is proposed in Japanese Patent No. 366088.
【０００５】また、もう一方の時間制御方式には２つの
方式があり、識別抵抗読み込み方式が特開平５−５２２
２８８号公報、バーコード時間制御方式が特許第２７３
９５７８号公報に提案されている。当該特許第２７３９
５７８号公報を基本としてＩＳＯが制定されており、バ
ーコード時間制御方式を用いる場合は、ＩＳＯ１３９５
０／ＴＲに準拠したバーコードラベルを電気融着継手に
装置することが一般的である。There are two other time control methods, and the identification resistance reading method is disclosed in Japanese Patent Laid-Open No. 5-522.
No. 288, and the barcode time control method is Japanese Patent No. 273.
It is proposed in Japanese Patent No. 9578. Patent No. 2739
ISO has been established based on Japanese Patent No. 578, and when the bar code time control method is used, ISO 1395 is used.
It is common to provide a 0 / TR compliant barcode label on the electrofusion joint.
【０００６】現在、日本国内の各電機融着継手メーカー
は、圧力検知方式、温度検知方式、識別抵抗読み
込み方式、それぞれ異なった融着時間制御方式を採用し
ている。[0006] At present, each manufacturer of electric fusion splicing joints in Japan employs a pressure detection method, a temperature detection method, an identification resistance reading method, and different fusion time control methods.
【０００７】また、各メーカーの電気融着継手は、融着
時間制御方法が異なることと同時に、通電制御装置との
取り合い部分となる継手ターミナルおす状電極部の外
径、ターミナル被差込部の内径が異なっている。In addition, the electric fusion splicing joints of the respective manufacturers differ in the fusion splicing time control method, and at the same time, the outer diameter of the joint terminal male electrode portion and the terminal plug-in portion to be engaged with the energization control device. Inner diameter is different.
【０００８】従来は、融着時間制御方法毎に専用のコン
トローラーが必要であるために、継手ターミナル形状が
各メーカーで異なって、通電制御装置と継手が一対一の
関係にあるため、使用する通電制御装置を使い分けるこ
とで互換性確保の必要性は無かった。Conventionally, since a dedicated controller is required for each fusion time control method, each joint manufacturer has a different joint terminal shape, and the energization control device and the joint have a one-to-one relationship. There was no need to ensure compatibility by using different control devices.
【０００９】近年欧米で実績があり日本においても導入
されるバーコード時間制御方式では、ＩＳＯ１３９５０
／ＴＲに準拠するバーコードラベルが貼付された電気融
着継手であれば通電制御上は、異なるメーカーの電気融
着継手も融着が可能であることから、今後はバーコー
ド時間制御方式に対応した電気融着継手が普及すること
が予測される。In the bar code time control method which has been used in Europe and America in recent years and is introduced in Japan, ISO13950 is used.
As long as the electric fusion joint has a bar code label conforming to / TR, it is possible to fuse electric fusion joints from different manufacturers in terms of energization control. It is expected that the electric fusion joint will be popular.
【００１０】融着時間制御方法としては、ＩＳＯに準拠
したバーコードラベルを添付した電気融着継手であれ
ば、バーコード時間制御方式通電制御装置により融着時
間制御が可能となる。As a method for controlling the fusion time, if it is an electric fusion joint having a bar code label conforming to ISO, the fusion time can be controlled by a bar code time control type energization control device.
【００１１】しかし、各メーカーのバーコード時間制御
方式の通電制御装置の出力ケーブル先端のコネクター形
状は、従来の通電制御装置メーカーと継手メーカーとの
互換性を確保するために、現行の電気融着継手のターミ
ナル形状が従来通りであることから、コネクターの電極
部形状は、従来通りの電極部形状となっている。However, the connector shape of the output cable tip of the bar code time control type energization control device of each maker has been designed so as to ensure compatibility between the conventional energization control device maker and the joint maker. Since the terminal shape of the joint is the same as the conventional shape, the electrode portion shape of the connector is the same as the conventional electrode portion shape.
【００１２】このような、各メーカーの継手ターミナル
にも接続可能とするために、特開２０００−２０８２１
９で開示されているごとく、電気融着継手の電熱線に接
続したターミナル端子と、これに通電する電気融着装置
の電源コードに接続したターミナルコネクターとの間を
連結するターミナルアダプターが提案されている。In order to be able to connect to such a joint terminal of each manufacturer, Japanese Patent Laid-Open No. 2000-20821
As disclosed in No. 9, there is proposed a terminal adapter for connecting between a terminal terminal connected to a heating wire of an electric fusion joint and a terminal connector connected to a power cord of an electric fusion device for energizing the electric fusion joint. There is.
【００１３】また、融着制御方法が異なる電気融着継手
を同一の通電制御装置で融着するために、特開平１１−
３２０６８９号公報で開示されるごとく、コネクター内
に複数の継手ターミナル差込口及びセンサーを設けるこ
とが提案されている。Further, in order to fuse electric fusion joints having different fusion control methods by the same energization control device, Japanese Patent Laid-Open No. 11-
As disclosed in Japanese Patent No. 320689, it is proposed to provide a plurality of joint terminal insertion ports and sensors in a connector.
【００１４】[0014]
【発明が解決しようとする課題】異なるメーカーの電気
融着継手を、１台のバーコード時間制御方式を兼ね備え
る通電制御装置を使用して融着作業を行なう場合、継手
に合ったアダプターが必要となる。When performing fusion welding of electric fusion joints of different manufacturers by using an energization control device having one bar code time control system, an adapter suitable for the joints is required. Become.
【００１５】しかし、アダプターを使用した場合、使用
しない場合に比べ接続箇所数が２倍となる。このため、
接続部での接触抵抗が増大する。効率よく電気エネルギ
ーを電気融着継手の電熱線に供給することが必要な電気
融着継手では、極力接触抵抗を減らすことが、品質向上
に繋がる。However, when the adapter is used, the number of connection points is doubled as compared with the case where the adapter is not used. For this reason,
The contact resistance at the connection increases. In an electric fusion joint that needs to efficiently supply electric energy to the heating wire of the electric fusion joint, reducing the contact resistance as much as possible leads to quality improvement.
【００１６】また、アダプター本体は、継手電極との取
り合いを考えた場合、小さい物となるため、使用してい
る間に紛失する可能性が大きい。Further, the adapter main body is small in consideration of the fitting with the joint electrode, and therefore there is a high possibility that it will be lost during use.
【００１７】異なる融着時間制御方式での互換性を確保
するために、同一のコネクター内に電極及び圧力検知用
のセンサー及び温度検知用のセンサーを設けることが提
案されている。In order to ensure compatibility with different fusion time control systems, it has been proposed to provide electrodes and pressure detecting sensors and temperature detecting sensors in the same connector.
【００１８】しかし、形状が非常に複雑で且つ嵩高であ
るために、埋設等の限られた空間で電気融着継手のター
ミナル部に接続する場合には、作業性が良くない問題が
ある。However, since the shape is extremely complicated and bulky, there is a problem that workability is not good when connecting to the terminal portion of the electric fusion joint in a limited space such as buried.
【００１９】また、同一の通電制御装置内に複数の通電
制御方法に対応したシステムを搭載する必要があるため
に非常に高価で且つ重い通電制御装置となる問題があ
る。Further, since it is necessary to mount a system corresponding to a plurality of energization control methods in the same energization control device, there is a problem that the energization control device becomes very expensive and heavy.
【００２０】従って、本発明の目的は、上述の問題点を
解決し、ターミナルの種類が異なる電気融着継手の電源
ケーブルの接続を簡便に且つ安全に行なうことができる
電気融着継手用通電制御装置及びコネクターを提供する
ことにある。Therefore, an object of the present invention is to solve the above-mentioned problems and to easily and safely connect the power supply cables of the electric fusion joints having different types of terminals to the electric fusion control for the electric fusion joints. To provide a device and a connector.
【００２１】[0021]
【課題を解決するための手段】請求項１記載の発明は、
電気融着継手と樹脂管とを接合する際に用いる電気融着
継手用通電制御装置において、種類が異なる２つの電極
を有するコネクターを備え、前記コネクターは前記２つ
の電極が前記コネクターの本体を挟んだ両側に対称に配
置されていることに特徴を有するものである。The invention according to claim 1 is
An electrification control device for an electric fusion joint used when joining an electric fusion joint and a resin pipe includes a connector having two electrodes of different types, wherein the two electrodes sandwich the main body of the connector. It is characterized by being symmetrically arranged on both sides.
【００２２】請求項２記載の発明は、前記２つの電極は
めす状の電極からなり、前記２つの電極内には、前記電
極内を塞いで感電を防止するための電極ガード棒が、前
記２つの電極内において摺動可能に配されていることに
特徴を有するものである。According to a second aspect of the present invention, the two electrodes are female electrodes, and an electrode guard rod for blocking the inside of the electrodes to prevent electric shock is provided in the two electrodes. It is characterized in that it is slidably arranged in one electrode.
【００２３】請求項３記載の発明は、前記コネクターは
前記電極の周囲に配された非導電体からなるコネクター
差込部を備え、前記コネクター差込部の形状は、非接続
側の電気融着継手のターミナルに設けられたターミナル
被差込部に嵌合できない形状であることに特徴を有する
ものである。According to a third aspect of the present invention, the connector has a connector insertion portion made of a non-conductive material, which is arranged around the electrode, and the shape of the connector insertion portion is such that the non-connecting side is electrically fused. It is characterized in that the shape is such that it cannot fit into the terminal insertion part provided in the terminal of the joint.
【００２４】請求項４記載の発明は、電気融着継手と樹
脂管とを接合する際に用いる電気融着継手用通電制御装
置において、種類が異なる２つの電極を有するコネクタ
ーを備え、前記２つの電極はめす状の電極からなり、前
記２つのめす状電極は前記コネクターの本体を挟んだ両
側に対称に配置されており、一方のめす状電極には、前
記電極内を塞いで感電を防止するための電極ガード棒の
一方側が、他方のめす状電極には前記電極ガード棒の他
方側が、前記２つのめす状電極内において摺動可能に配
され、前記一方のめす状電極が前記電気融着継手のター
ミナルのおす状の電極に差し込まれるときは、前記おす
状電極によって押された前記電極ガード棒の他方側によ
って前記他方のめす状電極内が塞がれることに特徴を有
するものである。According to a fourth aspect of the present invention, there is provided an electric fusion joint energization control device for use in joining an electric fusion joint and a resin pipe, which is provided with a connector having two electrodes of different types, The electrodes are female electrodes, and the two female electrodes are symmetrically arranged on both sides of the connector body, and one female electrode closes the inside of the electrode to prevent electric shock. One side of the electrode guard rod for the other, and the other side of the electrode guard rod for the other female electrode is slidably arranged in the two female electrodes, and the one female electrode is electrically fused. When it is inserted into the male electrode of the joint terminal, the inside of the other female electrode is closed by the other side of the electrode guard rod pushed by the male electrode.
【００２５】請求項５記載の発明は、前記コネクター
は、前記めす状電極の周囲に配された非導電体からなる
コネクター差込部を備え、前記電気融着継手のターミナ
ルは、前記コネクター差込部を差し込むための、非導電
体からなる凹状のターミナル被差込部を備え、前記ター
ミナルのおす状電極は、前記ターミナル被差込部内に設
けられており、前記ターミナルのおす状電極は、前記一
方のめす状電極と嵌合可能な一方のおす状電極、又は、
前記他方のめす状電極と嵌合可能な他方のおす状電極で
あり、前記一方のめす状電極の内径は、前記他方のめす
状電極の内径よりも大径となっており、前記一方のめす
状電極の周囲の前記コネクター差込部の外径は、前記他
方のおす状電極が設けられた前記ターミナル被差込部の
内径よりも大径となっており、かくして、前記一方のめ
す状電極が前記他方のおす状電極に誤って差し込まれる
ことがないようになっていることに特徴を有するもので
ある。According to a fifth aspect of the present invention, the connector includes a connector insertion portion made of a non-conductive material, which is arranged around the female electrode, and the terminal of the electric fusion joint is the connector insertion portion. A concave terminal plugged portion made of a non-conductive material for inserting a portion is provided, the male electrode of the terminal is provided in the terminal plugged portion, and the male electrode of the terminal is the One female electrode that can fit with one female electrode, or
The other female electrode that can be fitted to the other female electrode, the inner diameter of the one female electrode is larger than the inner diameter of the other female electrode, and the one female electrode is The outer diameter of the connector insertion portion around the electrode is larger than the inner diameter of the terminal insertion portion in which the other male electrode is provided, and thus the one female electrode is formed. Is characterized in that it is not accidentally inserted into the other male electrode.
【００２６】請求項６記載の発明は、電気融着継手と樹
脂管とを接合する際に用いる電気融着継手用通電制御装
置に用いるコネクターにおいて、種類が異なる２つの電
極を備え、前記２つの電極が前記コネクターの本体を挟
んで互いに反対側に対称に配置されていることに特徴を
有するものである。According to a sixth aspect of the present invention, in a connector used for an electric fusion joint energization control device used when joining an electric fusion joint and a resin pipe, two connectors of different types are provided, and the two electrodes are provided. It is characterized in that the electrodes are symmetrically arranged on opposite sides of the body of the connector.
【００２７】請求項７記載の発明は、前記２つの電極は
めす状の電極からなり、前記２つの電極内には、前記電
極内を塞いで感電を防止するための電極ガード棒が、前
記２つの電極内において摺動可能に配されていることに
特徴を有するものである。According to a seventh aspect of the present invention, the two electrodes are female electrodes, and an electrode guard rod for blocking the inside of the electrodes to prevent electric shock is provided in the two electrodes. It is characterized in that it is slidably arranged in one electrode.
【００２８】請求項８記載の発明は、前記電極の周囲に
配された非導電体からなるコネクター差込部を備え、前
記コネクター差込部の形状は、非接続側の電気融着継手
のターミナルに設けられたターミナル被差込部に嵌合で
きない形状であることに特徴を有するものである。The invention according to claim 8 is provided with a connector insertion portion made of a non-conductor disposed around the electrode, and the shape of the connector insertion portion is a terminal of the electric fusion joint on the non-connection side. It is characterized in that it has a shape such that it cannot be fitted into the terminal insertion portion provided in the.
【００２９】請求項９記載の発明は、電気融着継手と樹
脂管とを接合する際に用いる電気融着継手用通電制御装
置用コネクターにおいて、種類が異なる２つの電極を備
え、前記２つの電極はめす状の電極からなり、前記２つ
のめす状電極は前記コネクターの本体を挟んだ両側に対
称に配置されており、一方のめす状電極には、前記電極
内を塞いで感電を防止するための電極ガード棒の一方側
が、他方のめす状電極には前記電極ガード棒の他方側
が、前記２つのめす状電極内において摺動可能に配さ
れ、前記一方のめす状電極が前記電気融着継手のターミ
ナルのおす状の電極に差し込まれるときは、前記おす状
電極によって押された前記電極ガード棒の他方側によっ
て前記他方のめす状電極内が塞がれることに特徴を有す
るものである。According to a ninth aspect of the present invention, in a connector for an electric fusion control energization control device used for joining an electric fusion joint and a resin pipe, two electrodes of different types are provided, and the two electrodes are provided. It consists of female electrodes, and the two female electrodes are symmetrically arranged on both sides of the body of the connector, and one female electrode closes the inside of the electrode to prevent electric shock. One side of the electrode guard rod is slidably disposed on the other female electrode, and the other side of the electrode guard rod is slidably disposed within the two female electrodes. When it is inserted into the male electrode of the terminal, the other side of the electrode guard rod pushed by the male electrode closes the inside of the other female electrode.
【００３０】請求項１０記載の発明は、前記めす状電極
の周囲に配された非導電体からなるコネクター差込部を
備え、前記電気融着継手のターミナルは、前記コネクタ
ー差込部を差し込むための、非導電体からなる凹状のタ
ーミナル被差込部を備え、前記ターミナルのおす状電極
は、前記ターミナル被差込部内に設けられており、前記
ターミナルのおす状電極は、前記一方のめす状電極と嵌
合可能な一方のおす状電極、又は、前記他方のめす状電
極と嵌合可能な他方のおす状電極であり、前記一方のめ
す状電極の内径は、前記他方のめす状電極の内径よりも
大径となっており、前記一方のめす状電極の周囲の前記
コネクター差込部の外径は、前記他方のおす状電極が設
けられた前記ターミナル被差込部の内径よりも大径とな
っており、かくして、前記一方のめす状電極が前記他方
のおす状電極に誤って差し込まれることがないようにな
っていることに特徴を有するものである。According to a tenth aspect of the present invention, a connector insertion portion made of a non-conductive material is provided around the female electrode, and the terminal of the electric fusion joint is for inserting the connector insertion portion. Of the non-conductive concave terminal insertion portion, the male electrode of the terminal is provided in the terminal insertion portion, the male electrode of the terminal is the one female shape One female electrode that can be fitted with an electrode, or the other female electrode that can be fitted with the other female electrode, and the inner diameter of the one female electrode is that of the other female electrode. The diameter is larger than the inner diameter, and the outer diameter of the connector insertion portion around the one female electrode is larger than the inner diameter of the terminal insertion portion in which the other female electrode is provided. It has a diameter and is hidden , And it has the characteristics that the the one female-shaped electrodes so that the never inserted incorrectly vinegar-like electrodes of the other.
【００３１】[0031]
【発明の実施の形態】次に、本発明の実施の形態を図面
を参照しながら説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.
【００３２】図１は、本発明の実施の形態に係るコネク
ターの平面図、図２は、側面図、図３は、電極ガード棒
を示す側面図、図４は、通電制御装置と電気融着継手と
の接続図、図５は、コネクターの第１電極と第１電気融
着継手（Ａ社製）のターミナルとを接続した状態を示す
断面図、図６は、コネクターの第２電極と第２電気融着
継手（Ｂ社製）のターミナルとを接続した状態を示す断
面図、図７は、コネクターの第１電極と第２電気融着継
手（Ｂ社製）のターミナルとが接続できない状態を示す
断面図、図８は、コネクターの第２電極と第１電気融着
継手（Ａ社製）のターミナルとが接続できない状態を示
す断面図である。FIG. 1 is a plan view of a connector according to an embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is a side view showing an electrode guard rod, and FIG. 5 is a sectional view showing a state in which the first electrode of the connector and the terminal of the first electric fusion joint (manufactured by Company A) are connected, and FIG. 6 is the second electrode and the second electrode of the connector. 2 is a cross-sectional view showing a state in which the terminal of the electric fusion joint (manufactured by Company B) is connected, and FIG. 7 is a state where the first electrode of the connector and the terminal of the second electric fusion joint (manufactured by Company B) cannot be connected And FIG. 8 is a cross-sectional view showing a state in which the second electrode of the connector and the terminal of the first electric fusion joint (manufactured by Company A) cannot be connected.
【００３３】図４に示すように、電気融着継手２（Ａ社
製の電気融着継手２１、Ｂ社製の電気融着継手２２）
は、電気融着継手用通電制御装置（以下、「通電制御装
置」という）１からの２本の電源ケーブル（出力ケーブ
ル）６、６を備え、その先端部にはコネクター（差し込
み口）４が設けられている。電気融着継手２は、管３、
３の端部外側に嵌められている。電気融着継手２には２
つのターミナル５が設けられており、電源ケーブル６
は、コネクター４とターミナル５とによって接続される
ようになっている。As shown in FIG. 4, the electric fusion-bonding joint 2 (the electric fusion-bonding joint 21 manufactured by A company, the electric fusion-bonding joint 22 manufactured by B company)
Is equipped with two power supply cables (output cables) 6, 6 from an electric fusion joint energization control device (hereinafter, referred to as “energization control device”) 1, and a connector (insertion port) 4 is provided at a tip portion thereof. It is provided. The electric fusion-bonded joint 2 includes a pipe 3,
It is fitted on the outer side of the end of 3. 2 for the electric fusion joint 2
Two terminals 5 are provided and a power cable 6
Are connected by a connector 4 and a terminal 5.
【００３４】図１、２、図５〜８に示すように、コネク
ター４は、コネクター本体４ａと、コネクター本体４ａ
を挟んだ両側に対称に配置された、図２、図５〜８の図
面上においては、コネクター本体４ａを挟んだ両側に上
下対称に配置された、第１電極７（以下、「電極７」）
及び第２電極８（以下、「電極８」）を備えている。電
極７は、円筒状のめす状の電極であり、電極７の周囲に
は、円筒状の非導電体からなるコネクター差込部１７が
配されている。電極８は、めす状の電極７よりも内径の
小さい、円筒状のめす状の電極であり、電極８の周囲に
は、前記のコネクター差込部１７よりも外径の小さい、
円筒状の非導電体からなるコネクター差込部１８が配さ
れている。そして、めす状の電極７と電極８とは、互い
の軸線が１軸線状になるように配置されている。このめ
す状の電極７、８は、例えば、真鍮等からなっている。
コネクター差込部１７、１８は、例えば、樹脂等からな
っている。As shown in FIGS. 1, 2 and 5 to 8, the connector 4 includes a connector body 4a and a connector body 4a.
2 and 5 to 8 which are symmetrically arranged on both sides of the first electrode 7 (hereinafter, referred to as "electrode 7") which are vertically symmetrically arranged on both sides of the connector body 4a. )
And a second electrode 8 (hereinafter, “electrode 8”). The electrode 7 is a cylindrical female electrode, and a connector insertion portion 17 made of a cylindrical non-conductive material is arranged around the electrode 7. The electrode 8 is a cylindrical female electrode having an inner diameter smaller than that of the female electrode 7, and has an outer diameter smaller than that of the connector insertion portion 17 around the electrode 8.
A connector insertion portion 18 made of a cylindrical non-conductive material is arranged. The female electrode 7 and the female electrode 8 are arranged so that their mutual axes are uniaxial. The female electrodes 7 and 8 are made of, for example, brass.
The connector insertion portions 17 and 18 are made of resin, for example.
【００３５】電気融着継手２｛２１（Ａ社）、２２（Ｂ
社）｝は継手メーカーによってターミナル５（５１、５
２）の電極の規格が異なるが、コネクター４の電極７は
電気融着継手２１（Ａ社）に、電極８は電気融着継手２
２（Ｂ社）に、それぞれ規格が合うように製造されてお
り、電気融着継手に応じて電極７又は電極８を選択して
用いる。Electric fusion splicer 2 {21 (company A), 22 (B
Company)} depending on the joint manufacturer.
Although the standard of the electrode of 2) is different, the electrode 7 of the connector 4 is the electrofusion joint 21 (company A), and the electrode 8 is the electrofusion joint 2
2 (Company B) are manufactured to meet the respective standards, and the electrode 7 or the electrode 8 is selected and used according to the electric fusion joint.
【００３６】図５〜８に示すように、コネクター本体４
ａには電源ケーブル６が接続されている。該コネクター
本体４ａ内には、導電体からなるストッパー９が設けら
れ、ストッパー９は、電極７、８と電源ケーブル６とを
接続している。更に、ストッパー９は略箱状体となって
おり、その上下（図５〜８の図面上において）、すなわ
ち、電極７側及び８側のそれぞれには、非導電体、例え
ば、樹脂等からなる電極ガード棒１０を挿通するための
孔９ａ、９ｂが穿孔されている。As shown in FIGS. 5-8, the connector body 4
A power cable 6 is connected to a. A stopper 9 made of a conductor is provided in the connector body 4a, and the stopper 9 connects the electrodes 7 and 8 and the power cable 6. Furthermore, the stopper 9 has a substantially box-like shape, and is made of a non-conductive material such as resin on the upper and lower sides (in the drawings of FIGS. 5 to 8), that is, on the electrode 7 side and the electrode 8 side, respectively. Holes 9a and 9b for inserting the electrode guard rod 10 are formed.
【００３７】電極ガード棒１０は、電極７内に挿入可能
な外径を有する大径部１０ａと、電極８内に挿入可能な
外径を有する小径部１０ｂと、孔９ａ、９ｂの内径より
も大きな外径を有する中央部１０ｃとからなっている。
ストッパー９の孔９ａは、電極ガード棒１０の大径部１
０ａよりもやや大きい内径を有し、ストッパー９の孔９
ｂは、電極ガード棒１０の小径部１０ｂよりもやや大き
い内径を有し、かくして、電極ガード棒１０の大径部１
０ａは孔９ａを、電極ガード棒１０の小径部１０ｂは孔
９ｂを、それぞれ通過可能である。また、ストッパー９
内に配置されている電極ガード棒１０の中央部１０ｃは
その外径が孔９ａ及び９ｂの内径よりも大きいので、電
極ガード棒１０がストッパー９から抜けることはない。The electrode guard rod 10 has a large diameter portion 10a having an outer diameter that can be inserted into the electrode 7, a small diameter portion 10b having an outer diameter that can be inserted into the electrode 8 and inner diameters of the holes 9a and 9b. It has a central portion 10c having a large outer diameter.
The hole 9a of the stopper 9 has a large diameter portion 1 of the electrode guard rod 10.
It has an inner diameter slightly larger than 0a and has a hole 9 in the stopper 9.
b has an inner diameter slightly larger than the small diameter portion 10b of the electrode guard rod 10, and thus the large diameter portion 1 of the electrode guard rod 10 is
0a can pass through the hole 9a, and the small-diameter portion 10b of the electrode guard rod 10 can pass through the hole 9b. Also, stopper 9
Since the outer diameter of the central portion 10c of the electrode guard rod 10 disposed inside is larger than the inner diameters of the holes 9a and 9b, the electrode guard rod 10 will not come out of the stopper 9.
【００３８】電極ガード棒１０の小径部１０ｂは孔９ｂ
を介して電極８内に挿入され、大径部１０ａは孔９ａを
介して電極７に挿入され、かくして、電極７、８内が電
極ガード棒１０によって塞がれる。電極ガード棒１０の
中央部１０ｃの、図５〜８に示す上下方向の高さは、ス
トッパー９の内側の上下方向高さよりも所定寸法小さく
形成されており、電極ガード棒１０は、中央部１０ｃが
ストッパー９内において上下に移動可能な距離の分だ
け、上下に移動可能である。かくして、電極ガード棒１
０の小径部１０ｂは電極８内で、大径部１０ａは電極７
内で、それぞれ上下に摺動可能である。そして、電極ガ
ード棒１０が電極７側に移動したときは大径部１０ａが
電極７内の空間を塞ぎ、一方、該ガード棒１０が電極８
側に移動したときは小径部１０ｂが電極８内の空間を塞
ぐ。The small diameter portion 10b of the electrode guard rod 10 has a hole 9b.
The large-diameter portion 10a is inserted into the electrode 7 through the hole 9a, and thus the electrodes 7 and 8 are closed by the electrode guard rod 10. The vertical height of the central portion 10c of the electrode guard rod 10 shown in FIGS. 5 to 8 is smaller than the vertical height inside the stopper 9 by a predetermined dimension, and the electrode guard rod 10 has a central portion 10c. Can move up and down within the stopper 9 by an amount that can move up and down. Thus, the electrode guard rod 1
The small diameter portion 10b of 0 is inside the electrode 8 and the large diameter portion 10a is at the electrode 7
Each of them can slide up and down. When the electrode guard rod 10 moves to the electrode 7 side, the large diameter portion 10a closes the space inside the electrode 7, while the guard rod 10 moves to the electrode 8 side.
When moved to the side, the small diameter portion 10b closes the space inside the electrode 8.
【００３９】次に、電気融着継手２（２１、２２）のタ
ーミナル５（５１、５２）について説明する。電気融着
継手２１（Ａ社）には、ターミナル５１が設置されてい
る（図５、８参照）。一方、電気融着継手２２（Ｂ社）
には、ターミナル５２が設置されている（図６、７参
照）。Next, the terminals 5 (51, 52) of the electric fusion joint 2 (21, 22) will be described. A terminal 51 is installed in the electric fusion joint 21 (Company A) (see FIGS. 5 and 8). On the other hand, electrofusion joint 22 (Company B)
A terminal 52 is installed in the terminal (see FIGS. 6 and 7).
【００４０】ターミナル５１は、コネクター４の電極７
と嵌合可能で、電極８と嵌合不能である（図５、８参
照）。一方、ターミナル５２は、コネクター４の電極８
と嵌合可能で、電極７と嵌合不能である（図６、７参
照）。The terminal 51 is the electrode 7 of the connector 4.
Can be fitted and cannot be fitted with the electrode 8 (see FIGS. 5 and 8). On the other hand, the terminal 52 is the electrode 8 of the connector 4.
Can be fitted and cannot be fitted with the electrode 7 (see FIGS. 6 and 7).
【００４１】図５、８に示すように、ターミナル５１
は、コネクター４の電極７のコネクター差込部１７を挿
入するための、非導電体（電気融着継手２１の本体と同
材質）からなる凹状のターミナル被差込部１２と、前記
ターミナル被差込部１２内に設けられた、電極７と嵌合
可能なおす状の電極１１とを備えている。ターミナル被
差込部１２の内径は、電極７のコネクター差込部１７を
挿入可能な所定の寸法を備えている。As shown in FIGS. 5 and 8, the terminal 51
Is a concave terminal insertion portion 12 made of a non-conductive material (the same material as the main body of the electric fusion joint 21) for inserting the connector insertion portion 17 of the electrode 7 of the connector 4, and the terminal insertion portion. It is provided with a male electrode 11 that can be fitted with the electrode 7 and that is provided in the insertion portion 12. The inner diameter of the terminal insertion portion 12 has a predetermined size into which the connector insertion portion 17 of the electrode 7 can be inserted.
【００４２】図６、７に示すように、ターミナル５２
は、コネクター４の電極８のコネクター差込部１８を挿
入するための、非導電体（電気融着継手２２の本体と同
材質）からなる凹状のターミナル被差込部１４と、前記
ターミナル被差込部１４内に設けられた、電極８と嵌合
可能なおす状の電極１３とを備えている。ターミナル被
差込部１４の内径は、電極８のコネクター差込部１８を
挿入可能な所定の寸法を備えている。As shown in FIGS. 6 and 7, the terminal 52
Is a concave terminal insertion portion 14 made of a non-conductive material (the same material as the body of the electric fusion joint 22) for inserting the connector insertion portion 18 of the electrode 8 of the connector 4, and the terminal insertion portion. It is provided with a male-shaped electrode 13 that can be fitted with the electrode 8 and that is provided in the insertion portion 14. The inner diameter of the terminal insertion portion 14 has a predetermined size into which the connector insertion portion 18 of the electrode 8 can be inserted.
【００４３】図５に示すように、電気融着継手２１のタ
ーミナル５１に差し込むときは、電極７を選択し、電極
７を下に向けてターミナル５１に差し込む。これによ
り、ターミナル５１のおす状の電極１１が電極ガード棒
１０を押し上げ、電極ガード棒１０の小径部１０ｂが電
極８内の空間を塞ぎ、電極８の内表面が露出せず、人な
どが直接電極８に触れて感電すること等が防止される。As shown in FIG. 5, when inserting into the terminal 51 of the electric fusion joint 21, the electrode 7 is selected, and the electrode 7 is inserted downward into the terminal 51. As a result, the male electrode 11 of the terminal 51 pushes up the electrode guard rod 10, the small-diameter portion 10b of the electrode guard rod 10 closes the space inside the electrode 8, the inner surface of the electrode 8 is not exposed, and a person or the like directly touches it. It is prevented that the electrode 8 is touched and an electric shock is generated.
【００４４】図６に示すように、電気融着継手２２のタ
ーミナル５２に差し込むときは、電極８を選択し、電極
８を下に向けてターミナル５２に差し込む。これによ
り、ターミナル５２のおす状の電極１３が電極ガード棒
１０を押し上げ、電極ガード棒１０の大径部１０ａが電
極７内の空間を塞ぎ、電極７の内表面が露出せず、人な
どが直接電極７に触れて感電すること等が防止される。As shown in FIG. 6, when inserting into the terminal 52 of the electric fusion joint 22, the electrode 8 is selected, and the electrode 8 is inserted downward into the terminal 52. As a result, the male electrode 13 of the terminal 52 pushes up the electrode guard rod 10, the large-diameter portion 10a of the electrode guard rod 10 closes the space inside the electrode 7, and the inner surface of the electrode 7 is not exposed. It is possible to prevent an electric shock by directly touching the electrode 7.
【００４５】更に、電極ガード棒１０がターミナル５に
差し込まれない側の電極（７又は８）の空間を塞ぐこと
により、空間内に泥等の異物が入りにくくなる。それに
よりコネクター４とターミナル５との電極間の接触抵抗
の増大が防止される。更に、泥等に含まれる水分による
電極表面の錆びが防止される。Furthermore, by closing the space of the electrode (7 or 8) on the side where the electrode guard rod 10 is not inserted into the terminal 5, it becomes difficult for foreign matter such as mud to enter the space. This prevents an increase in contact resistance between the electrodes of the connector 4 and the terminal 5. Furthermore, rust on the electrode surface due to water contained in mud or the like is prevented.
【００４６】以上、コネクター４は、電極７及び電極８
が上下対称に配置されているので、作業者等が容易に電
極を選ぶことができ、ターミナルへの差込み作業を容易
に行なうことができる。As described above, the connector 4 includes the electrode 7 and the electrode 8.
Are arranged symmetrically in the vertical direction, an operator or the like can easily select an electrode and can easily insert the electrode into the terminal.
【００４７】次に、本発明の差込み間違い（誤差込み）
防止機構について説明する。図７に示すように、本発明
のコネクターは、第１電極７と第２電極８を有するが、
第１電極７の内径は、第２電極８の内径よりも大径であ
る。従って、第２電極８と接続するＢ社の電気融着継手
（以下、「ＥＦ継手」という）２２のターミナル５２の
おす状の電極１３の外径は、第１電極７と接続するＡ社
のＥＦ継手２１のおす状の電極１１の外径よりも小径で
ある。従って、第１電極７を、誤ってＢ社のＥＦ継手２
２のターミナル５２に差し込もうとしたときは、第１電
極７の内径の方が、ＥＦ継手２２のターミナル５２のお
す状電極１３の外径Ｘ（図７参照）よりもかなり大径な
ので、いわゆるスカスカの状態ながら、第１電極７内に
このおす状電極１２が嵌合されてしまうこととなる。こ
れを防ぐために、第１電極７のコネクター差込部１７の
外径Ｙ（図７参照）は、Ｂ社のＥＦ継手２２のターミナ
ル被差込部１４の内径Ｚ（図７参照）よりも大径となっ
ている。これにより、第１電極７のコネクター差込部１
７と、Ｂ社のＥＦ継手２２のターミナル被差込部１４と
が突き当たって、第１電極７のコネクター差込部１７を
Ｂ社のＥＦ継手２２のターミナル被差込部１４内に差し
込むことができず、結果として、第１電極７がＢ社のＥ
Ｆ継手２２のターミナル５２と接合されることはない。Next, insertion error of the present invention (error included)
The prevention mechanism will be described. As shown in FIG. 7, the connector of the present invention has a first electrode 7 and a second electrode 8,
The inner diameter of the first electrode 7 is larger than the inner diameter of the second electrode 8. Therefore, the outer diameter of the male electrode 13 of the terminal 52 of the electric fusion-bonded joint (hereinafter, referred to as “EF joint”) 22 of the company B connected to the second electrode 8 is the same as that of the company A connected to the first electrode 7. The diameter is smaller than the outer diameter of the male electrode 11 of the EF joint 21. Therefore, the first electrode 7 is mistakenly replaced by the EF joint 2
When trying to insert it into the second terminal 52, since the inner diameter of the first electrode 7 is considerably larger than the outer diameter X (see FIG. 7) of the male electrode 13 of the terminal 52 of the EF joint 22, The male-shaped electrode 12 is fitted in the first electrode 7 in a so-called scatter state. In order to prevent this, the outer diameter Y (see FIG. 7) of the connector insertion portion 17 of the first electrode 7 is larger than the inner diameter Z (see FIG. 7) of the terminal insertion portion 14 of the EF joint 22 of company B. It has a diameter. As a result, the connector insertion portion 1 of the first electrode 7
7 and the terminal plugged-in portion 14 of the EF joint 22 of the company B hit each other, and the connector plugged-in portion 17 of the first electrode 7 can be inserted into the terminal plugged-in portion 14 of the EF joint 22 of the company B. As a result, the first electrode 7 is not
It is not joined to the terminal 52 of the F joint 22.
【００４８】一方、図８に示すように、第２電極８を誤
ってＡ社のＥＦ継手２１のターミナル５１に差し込もう
としてしまったときは、第２電極８内にＡ社のＥＦ継手
２１のターミナル５１のおす状電極１１が挿入されなけ
ればよく、従って、第２電極８の内径Ｖ（図８参照）
は、Ａ社のＥＦ継手２１のターミナル５１のおす状電極
１１の外径W（図８参照）よりも小径となっている。こ
れにより、第２電極８がＡ社のＥＦ継手２１のターミナ
ル５１のおす状電極１１と突き当たって、ＥＦ継手２１
のターミナル５１のおす状電極１１を第２電極８内に挿
入することができず、結果として、第２電極８がＡ社の
ＥＦ継手２１のターミナル５１と接続されることはな
い。On the other hand, as shown in FIG. 8, when the second electrode 8 is mistakenly inserted into the terminal 51 of the EF joint 21 of A company, the EF joint 21 of A company is inserted in the second electrode 8. It is only necessary that the male electrode 11 of the terminal 51 of the second electrode 8 is not inserted, and thus the inner diameter V of the second electrode 8 (see FIG. 8)
Is smaller than the outer diameter W (see FIG. 8) of the male electrode 11 of the terminal 51 of the EF joint 21 of A company. As a result, the second electrode 8 hits the male electrode 11 of the terminal 51 of the EF joint 21 of Company A, and the EF joint 21
The male electrode 11 of the terminal 51 cannot be inserted into the second electrode 8 and, as a result, the second electrode 8 is not connected to the terminal 51 of the EF joint 21 of A company.
【００４９】[0049]
【実施例】次に、本発明を用いて、熱可塑性樹脂管を電
気融着継手を用いて融着接合する実施例を説明する。EXAMPLE Next, an example of fusion-bonding a thermoplastic resin tube using an electric fusion joint according to the present invention will be described.
【００５０】図９は、接合する樹脂管（以下、「パイ
プ」という）の外側に電気融着継手（「ＥＦ継手」）を
被覆し、ＥＦ継手に通電してパイプとＥＦ継手とを融着
接合し、かくして、パイプをつなげる下記、１．〜１
４．の工程からなる実施例を示す説明図である。本実施
例は、バーコード方式及び圧力検知方式に共通するパイ
プの接合作業である。
１．パイプ３の融着部の表面を切削する。
２．パイプ３の融着部の表面を清掃する。
３．ＥＦ継手２の内面を清掃する。
４．ＥＦ継手２にパイプ３を挿入する。
５．ＥＦ継手２とパイプ３をクランプ（固定冶具）（図
示せず）で固定する。
６．本発明コネクター（以下、「コネクター」という）
４に被せておいた感電防止用のゴムカバー（図示せず）
を取り外す。
７．ＥＦ継手２のターミナル５と、電源ケーブル６のコ
ネクター４とを接続する。接続作業工程を、下記〜
に詳細に示す。In FIG. 9, an electric fusion splicing joint (“EF joint”) is coated on the outside of a resin pipe (hereinafter referred to as “pipe”) to be joined, and the EF joint is energized to fuse the pipe and the EF joint. Joining and thus connecting the pipes: 1. ~ 1
4. It is explanatory drawing which shows the Example which consists of a process. The present embodiment is a pipe joining operation common to the bar code system and the pressure detection system. 1. The surface of the fused portion of the pipe 3 is cut. 2. The surface of the fused portion of the pipe 3 is cleaned. 3. Clean the inner surface of the EF joint 2. 4. Insert the pipe 3 into the EF joint 2. 5. The EF joint 2 and the pipe 3 are fixed by a clamp (fixing jig) (not shown). 6. The connector of the present invention (hereinafter referred to as "connector")
Rubber cover (not shown) for preventing electric shock that was put on 4
Remove. 7. The terminal 5 of the EF joint 2 and the connector 4 of the power cable 6 are connected. The connection work process is
Details are shown in.
【００５１】 複数社ある中から選んだＥＦ継手のタ
ーミナル形状に合わせてコネクターの電極部を選択す
る。例えば、本実施例においては、Ａ社のＥＦ継手を用
いるものとし、このＡ社のＥＦ継手に適合する第１電極
を選択する。The electrode part of the connector is selected according to the terminal shape of the EF joint selected from a plurality of companies. For example, in the present embodiment, the EF joint of the A company is used, and the first electrode suitable for the EF joint of the A company is selected.
【００５２】 選択を容易にするために、コネクター
の電極部（コネクター差込部）は色分けされている。こ
れにより、電極を間違えることはない。In order to facilitate selection, the electrode part of the connector (connector insertion part) is color-coded. Therefore, the electrodes will not be mistaken.
【００５３】 選択したコネクターの第１電極のコネ
クター差込部を、Ａ社のＥＦ継手のターミナルの被差込
部に差し込む。これにより、第１電極内に、Ａ社のＥＦ
継手のターミナルのおす状の電極が差し込まれ、Ａ社の
ＥＦ継手に電源ケーブルが接続される。本発明電気融着
継手用通電制御装置は、コネクターの第１電極と第２電
極とが、コネクター本体を挟んだ両側に対称に配置され
ているので、図９に示すようにＥＦ継手の上部に位置し
ているターミナルに対して、選択した第１電極をコネク
ターの下部に位置させて作業者がコネクターを把持すれ
ば、容易に第１電極を下方のＥＦ継手のターミナルに差
し込むことができる。The connector insertion part of the first electrode of the selected connector is inserted into the insertion part of the terminal of the EF joint of Company A. As a result, the EF of Company A is placed in the first electrode.
The male electrode of the joint terminal is inserted, and the power cable is connected to the EF joint of Company A. Since the first electrode and the second electrode of the connector are symmetrically arranged on both sides of the connector body, the energization control device for the electric fusion joint of the present invention is provided on the upper portion of the EF joint as shown in FIG. The operator can easily insert the first electrode into the terminal of the lower EF joint by positioning the selected first electrode in the lower part of the connector with respect to the terminal located and holding the connector by the operator.
【００５４】 第１電極を下方のＥＦ継手のターミナ
ルに差し込んだとき、第１電極内の電極ガード棒が、Ａ
社のＥＦ継手のターミナルのおす状の電極に押されて、
第１電極とは反対側の第２電極内に押し出され、第２電
極内が塞がれて第２電極の内表面が露出しない状態とな
る。かくして、人などが直接電極に触れて感電すること
等が防止される。更に、電極ガード棒が非接続側の電極
の空間を塞ぐことにより、泥等の異物が入りにくくな
り、コネクターとターミナルとの電極間の接触抵抗の増
大が防止され、及び、泥等に含まれる水分による電極表
面の錆びが防止される。When the first electrode is inserted into the terminal of the lower EF joint, the electrode guard rod in the first electrode is
Pressed by the male electrode of the terminal of the company's EF joint,
The second electrode on the side opposite to the first electrode is pushed out, the inside of the second electrode is closed, and the inner surface of the second electrode is not exposed. Thus, it is possible to prevent a person or the like from directly touching the electrode and receiving an electric shock. Furthermore, since the electrode guard rod closes the space of the electrode on the non-connection side, foreign matter such as mud becomes less likely to enter, the contact resistance between the electrode of the connector and the terminal is prevented from increasing, and it is contained in mud or the like. Rust on the electrode surface due to moisture is prevented.
【００５５】 本発明の電気融着継手用通電制御装置
は、差込み間違い（誤差込み）防止機構を備えているの
で、規格が合わないコネクターとＥＦ継手のターミナル
とが誤って接続されることはない。Since the energization control device for the electric fusion joint of the present invention is provided with the insertion error (error insertion) prevention mechanism, the connector not conforming to the standard and the terminal of the EF joint are not mistakenly connected. .
【００５６】８．バーコードリーダー１５でバーコード
ラベル１６を読み込む。
９．通電制御装置１の融着開始ボタンを押す。
１０．融着（通電）。
１１．コネクター４を継手ターミナル５から取り外す。
１２．コネクター４にゴムカバーを取り付ける。
１３．冷却状態により保持する。
１４．次の、ＥＦ継手融着工程へ。8. The barcode label 16 is read by the barcode reader 15. 9. The fusion start button of the energization control device 1 is pressed. 10. Fusion (energization). 11. Remove the connector 4 from the fitting terminal 5. 12. Attach the rubber cover to the connector 4. 13. Hold according to the cooling condition. 14. To the next EF joint fusion process.
【００５７】[0057]
【発明の効果】以上説明したように、本発明によれば下
記に示す有用な効果がもたらされる。
コネクターの電極を、コネクター本体を挟んで対称
に配置したので、使用する電極を容易に選択することが
でき、各種形状の異なる電気融着継手のターミナル電極
であっても、コネクターを間違えることなく選択し、電
源ケーブルを電気融着継手に接続することができる。ま
た、異なるメーカーの継手も併用して同一の通電制御装
置によって電気融着接合が可能である。
コネクターに複数の電極を装備することによりアダ
プターを使用しないため、該アダプター等の付け替え作
業を行うことなく迅速に電気融着接合が可能である。ま
た、コネクター自体が非常に小さくターミナルへの接続
が非常に行ない易い。
電極ガード棒という簡便な機構を用いた感電防止機
能を装備しているので、コネクター形状を大型化するこ
となく感電の恐れを解消し安全性を確保することができ
る。更に、電極ガード棒が非接続側の電極の空間を塞ぐ
ことにより、泥等の異物が入りにくくなる。それにより
コネクターとターミナルとの電極間の接触抵抗の増大が
防止され、及び、泥等に含まれる水分による電極表面の
錆びが防止される。
コネクター電極部の電極、コネクター差込口の形
状、寸法を規定することにより、非接続側の電気融着継
手のターミナルに誤って接続されることが防止される。As described above, according to the present invention, the following useful effects are brought about. Since the electrodes of the connector are symmetrically arranged with the connector body sandwiched, the electrode to be used can be easily selected, and even if the terminal electrode of the electric fusion joint of different shapes is selected, the connector can be selected without mistake. However, the power cable can be connected to the electric fusion joint. In addition, joints of different manufacturers can be used together to perform electric fusion bonding by the same current control device. Since the connector is equipped with a plurality of electrodes so that an adapter is not used, it is possible to rapidly perform electric fusion bonding without performing a replacement work of the adapter or the like. Also, the connector itself is very small and it is very easy to connect to the terminal. Since it is equipped with an electric shock prevention function that uses a simple mechanism called an electrode guard rod, it is possible to eliminate the risk of electric shock and ensure safety without increasing the size of the connector. Furthermore, since the electrode guard rod closes the space of the electrode on the non-connection side, it becomes difficult for foreign matter such as mud to enter. This prevents an increase in contact resistance between the electrode of the connector and the terminal, and prevents rusting of the electrode surface due to water contained in mud or the like. By defining the shape and dimensions of the electrode of the connector electrode portion and the connector insertion port, it is possible to prevent accidental connection to the terminal of the electric fusion joint on the non-connection side.
【図１】本発明の実施の形態に係るコネクターの平面図
である。FIG. 1 is a plan view of a connector according to an embodiment of the present invention.
【図２】本発明の実施の形態に係るコネクターの側面図
である。FIG. 2 is a side view of the connector according to the embodiment of the present invention.
【図３】本発明の実施の形態に係る電極ガード棒を示す
側面図である。FIG. 3 is a side view showing an electrode guard rod according to an embodiment of the present invention.
【図４】本発明の実施の形態に係る通電制御装置と電気
融着継手との接続を示す説明図である。FIG. 4 is an explanatory view showing the connection between the energization control device and the electric fusion joint according to the embodiment of the present invention.
【図５】本発明の実施の形態に係るコネクターの第１電
極と第１電気融着継手（Ａ社製）のターミナルとを接続
した状態を示す断面図である。FIG. 5 is a cross-sectional view showing a state in which the first electrode of the connector according to the embodiment of the present invention and the terminal of the first electric fusion joint (manufactured by A company) are connected.
【図６】本発明の実施の形態に係るコネクターの第２電
極と第２電気融着継手（Ｂ社製）のターミナルとを接続
した状態を示す断面図である。FIG. 6 is a cross-sectional view showing a state in which the second electrode of the connector according to the embodiment of the present invention and the terminal of the second electric fusion joint (manufactured by Company B) are connected.
【図７】本発明の実施の形態に係るコネクターの第１電
極と第２電気融着継手（Ｂ社製）のターミナルとが接続
できない状態を示す断面図である。FIG. 7 is a cross-sectional view showing a state in which the first electrode of the connector according to the embodiment of the present invention and the terminal of the second electric fusion joint (manufactured by Company B) cannot be connected.
【図８】本発明の実施の形態に係るコネクターの第２電
極と第１電気融着継手（Ａ社製）のターミナルとが接続
できない状態を示す断面図である。FIG. 8 is a cross-sectional view showing a state in which the second electrode of the connector according to the embodiment of the present invention and the terminal of the first electric fusion joint (manufactured by A company) cannot be connected.
【図９】熱可塑性樹脂管を電気融着継手を用いて融着接
合する本発明の実施例を示す説明図である。FIG. 9 is an explanatory view showing an embodiment of the present invention in which a thermoplastic resin tube is fusion bonded using an electric fusion joint.
１ 通電制御装置 ２ 電気融着継手 ２１ Ａ社の電気融着継手 ２２ Ｂ社の電気融着継手 ３ 管 ４ コネクター ４ａ コネクター本体 ５ ターミナル ５１ Ａ社の電気融着継手２１のターミナル ５２ Ｂ社の電気融着継手２２のターミナル ６ 電源ケーブル ７ 第１電極 ８ 第２電極 ９ ストッパー ９ａ、９ｂ 孔 １０ 電極ガード棒 １０ａ 電極ガード棒の大径部 １０ｂ 電極ガード棒の小径部 １０ｃ 電極ガード棒の中央部 １１ おす状の電極 １２ ターミナル被差込部 １３ おす状の電極 １４ ターミナル被差込部 １５ バーコードリーダー １６ バーコードラベル １７ 第１電極のコネクター差込部 １８ 第２電極のコネクター差込部 1 Energization control device 2 Electric fusion joint 21 A company's electric fusion joint 22 Company B's electric fusion joint 3 tubes 4 connectors 4a Connector body 5 terminals 51 Terminal of electrofusion joint 21 of Company A 52 Terminal of electrofusion joint 22 of company B 6 power cable 7 First electrode 8 Second electrode 9 stopper 9a, 9b holes 10 Electrode guard rod 10a Large diameter part of electrode guard rod 10b Small diameter part of electrode guard rod 10c Center part of electrode guard rod 11 Male electrode 12 Terminal plugged part 13 Male electrode 14 Terminal plugged part 15 Bar Code Reader 16 barcode labels 17 Connector insertion part of the first electrode 18 Second electrode connector insertion part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 竹内 晃 京都府宇治市槙島町十六 19−１ 京都電 機器株式会社内 Ｆターム(参考） 3H019 GA02 4F211 AD05 AD12 AG08 AH11 AR16 TA01 TC11 TD07 TN02 TQ09 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Akira Takeuchi Kyoto Electric Railway 19-1 16 Makishimacho, Uji City, Kyoto Prefecture Equipment Co., Ltd. F-term (reference) 3H019 GA02 4F211 AD05 AD12 AG08 AH11 AR16 TA01 TC11 TD07 TN02 TQ09
Claims (10)
用いる電気融着継手用通電制御装置において、種類が異
なる２つの電極を有するコネクターを備え、前記コネク
ターは前記２つの電極が前記コネクターの本体を挟んだ
両側に対称に配置されていることを特徴とする、電気融
着継手用通電制御装置。1. An electric fusion control energization control device used for joining an electric fusion joint and a resin pipe, comprising a connector having two electrodes of different types, wherein the two electrodes of the connector are An electrification control device for an electric fusion joint, which is symmetrically arranged on both sides of the body of the connector.
り、前記２つの電極内には、前記電極内を塞いで感電を
防止するための電極ガード棒が、前記２つの電極内にお
いて摺動可能に配されている請求項１記載の電気融着継
手用通電制御装置。2. The two electrodes are female electrodes, and an electrode guard rod for blocking the inside of the electrodes to prevent electric shock is slidable inside the two electrodes. The energization control device for an electric fusion joint according to claim 1, which is arranged so as to be possible.
れた非導電体からなるコネクター差込部を備え、前記コ
ネクター差込部の形状は、非接続側の電気融着継手のタ
ーミナルに設けられたターミナル被差込部に嵌合できな
い形状である請求項１又は２記載の電気融着継手用通電
制御装置。3. The connector includes a connector insertion portion made of a non-conductive material, which is arranged around the electrode, and the shape of the connector insertion portion is provided at a terminal of the non-connection-side electric fusion joint. The energization control device for an electric fusion joint according to claim 1 or 2, wherein the energization control device has a shape that cannot be fitted into the terminal insertion portion.
用いる電気融着継手用通電制御装置において、種類が異
なる２つの電極を有するコネクターを備え、前記２つの
電極はめす状の電極からなり、前記２つのめす状電極は
前記コネクターの本体を挟んだ両側に対称に配置されて
おり、一方のめす状電極には、前記電極内を塞いで感電
を防止するための電極ガード棒の一方側が、他方のめす
状電極には前記電極ガード棒の他方側が、前記２つのめ
す状電極内において摺動可能に配され、前記一方のめす
状電極が前記電気融着継手のターミナルのおす状の電極
に差し込まれるときは、前記おす状電極によって押され
た前記電極ガード棒の他方側によって前記他方のめす状
電極内が塞がれることを特徴とする、電気融着継手用通
電制御装置。4. An electric fusion joint energization control device used for joining an electric fusion joint and a resin pipe, comprising a connector having two electrodes of different types, wherein the two electrodes are female electrodes. The two female electrodes are symmetrically arranged on both sides of the body of the connector, and one female electrode is provided with an electrode guard rod for closing the inside of the electrode to prevent electric shock. One side and the other female electrode are arranged so that the other side of the electrode guard rod is slidable within the two female electrodes, and the one female electrode is the male shape of the terminal of the electric fusion joint. The electric conduction control device for an electric fusion joint, characterized in that the inside of the other female-shaped electrode is closed by the other side of the electrode guard rod pushed by the male-shaped electrode when it is inserted into the electrode.
囲に配された非導電体からなるコネクター差込部を備
え、前記電気融着継手のターミナルは、前記コネクター
差込部を差し込むための、非導電体からなる凹状のター
ミナル被差込部を備え、前記ターミナルのおす状電極
は、前記ターミナル被差込部内に設けられており、前記
ターミナルのおす状電極は、前記一方のめす状電極と嵌
合可能な一方のおす状電極、又は、前記他方のめす状電
極と嵌合可能な他方のおす状電極であり、前記一方のめ
す状電極の内径は、前記他方のめす状電極の内径よりも
大径となっており、前記一方のめす状電極の周囲の前記
コネクター差込部の外径は、前記他方のおす状電極が設
けられた前記ターミナル被差込部の内径よりも大径とな
っており、かくして、前記一方のめす状電極が前記他方
のおす状電極に誤って差し込まれることがないようにな
っている、請求項４記載の電気融着継手用通電制御装
置。5. The connector comprises a connector insertion portion made of a non-conductive material, which is arranged around the female electrode, and a terminal of the electric fusion joint is provided for inserting the connector insertion portion. A concave terminal plugged portion made of a non-conductor is provided, and the male electrode of the terminal is provided in the terminal plugged portion, and the male electrode of the terminal is the female female electrode of the one side. One of the female electrodes that can be fitted, or the other female electrode that can be fitted with the other female electrode, the inner diameter of the one female electrode is larger than the inner diameter of the other female electrode. And the outer diameter of the connector insertion portion around the one female electrode is larger than the inner diameter of the terminal insertion portion provided with the other female electrode. And thus, before The energization control device for an electric fusion joint according to claim 4, wherein one female electrode is prevented from being accidentally inserted into the other female electrode.
いる電気融着継手用通電制御装置に用いるコネクターに
おいて、種類が異なる２つの電極を備え、前記２つの電
極が前記コネクターの本体を挟んで互いに反対側に対称
に配置されていることを特徴とする、電気融着継手用通
電制御装置用コネクター。6. A connector used in an electric fusion joint energization control device used for joining an electric fusion joint and a resin pipe, comprising two electrodes of different types, the two electrodes being the main body of the connector. A connector for an electrification control device for an electric fusion joint, characterized in that the connectors are arranged symmetrically on opposite sides with a pinch in between.
り、前記２つの電極内には、前記電極内を塞いで感電を
防止するための電極ガード棒が、前記２つの電極内にお
いて摺動可能に配されている請求項６記載のコネクタ
ー。7. The two electrodes are female electrodes, and an electrode guard rod for blocking the inside of the electrodes to prevent electric shock is slidable inside the two electrodes. 7. The connector according to claim 6, which is arranged so as to be possible.
なるコネクター差込部を備え、前記コネクター差込部の
形状は、非接続側の電気融着継手のターミナルに設けら
れたターミナル被差込部に嵌合できない形状である請求
項６又は７記載のコネクター。8. A connector insertion part made of a non-conductive material is provided around the electrode, and the shape of the connector insertion part is a terminal cover provided on the terminal of the electric fusion joint on the non-connection side. The connector according to claim 6 or 7, which has a shape that cannot be fitted into the insertion portion.
用いる電気融着継手用通電制御装置用コネクターにおい
て、種類が異なる２つの電極を備え、前記２つの電極は
めす状の電極からなり、前記２つのめす状電極は前記コ
ネクターの本体を挟んだ両側に対称に配置されており、
一方のめす状電極には、前記電極内を塞いで感電を防止
するための電極ガード棒の一方側が、他方のめす状電極
には前記電極ガード棒の他方側が、前記２つのめす状電
極内において摺動可能に配され、前記一方のめす状電極
が前記電気融着継手のターミナルのおす状の電極に差し
込まれるときは、前記おす状電極によって押された前記
電極ガード棒の他方側によって前記他方のめす状電極内
が塞がれることを特徴とする、電気融着継手用通電制御
装置用コネクター。9. A current control device connector for an electric fusion joint, which is used for joining an electric fusion joint and a resin pipe, is provided with two electrodes of different types, and the two electrodes are female electrodes. The two female electrodes are symmetrically arranged on both sides of the connector body,
One female electrode has one side of an electrode guard rod for blocking the inside of the electrode to prevent electric shock, and the other female electrode has the other side of the electrode guard rod in the two female electrodes. When slidably arranged and the one female electrode is inserted into the male electrode of the terminal of the electrofusion joint, the other side is pushed by the other side of the electrode guard rod pushed by the male electrode. A connector for an electric conduction control device for an electric fusion joint, characterized in that the inside of the female electrode is closed.
電体からなるコネクター差込部を備え、前記電気融着継
手のターミナルは、前記コネクター差込部を差し込むた
めの、非導電体からなる凹状のターミナル被差込部を備
え、前記ターミナルのおす状電極は、前記ターミナル被
差込部内に設けられており、前記ターミナルのおす状電
極は、前記一方のめす状電極と嵌合可能な一方のおす状
電極、又は、前記他方のめす状電極と嵌合可能な他方の
おす状電極であり、前記一方のめす状電極の内径は、前
記他方のめす状電極の内径よりも大径となっており、前
記一方のめす状電極の周囲の前記コネクター差込部の外
径は、前記他方のおす状電極が設けられた前記ターミナ
ル被差込部の内径よりも大径となっており、かくして、
前記一方のめす状電極が前記他方のおす状電極に誤って
差し込まれることがないようになっている請求項９記載
のコネクター。10. A connector insertion part made of a non-conductive material is provided around the female electrode, and a terminal of the electrofusion joint is formed from a non-conductive material for inserting the connector insertion part. The recessed terminal plugged-in portion is formed, and the male electrode of the terminal is provided in the terminal plugged-in portion, and the male electrode of the terminal is engageable with the one female electrode. One female electrode, or the other female electrode that can be fitted with the other female electrode, the inner diameter of the one female electrode is larger than the inner diameter of the other female electrode. The outer diameter of the connector insertion portion around the one female electrode is larger than the inner diameter of the terminal insertion portion provided with the other female electrode, Thus,
The connector according to claim 9, wherein the one female electrode is prevented from being accidentally inserted into the other female electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002128331A JP3861741B2 (en) | 2002-04-30 | 2002-04-30 | Energization control device for electric fusion joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002128331A JP3861741B2 (en) | 2002-04-30 | 2002-04-30 | Energization control device for electric fusion joint |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006119177A Division JP4333689B2 (en) | 2006-04-24 | 2006-04-24 | Energization control device for electric fusion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003320586A true JP2003320586A (en) | 2003-11-11 |
| JP3861741B2 JP3861741B2 (en) | 2006-12-20 |
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ID=29542125
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1548785A1 (en) | 2003-12-24 | 2005-06-29 | Yazaki Corporation | Fusible link unit |
-
2002
- 2002-04-30 JP JP2002128331A patent/JP3861741B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1548785A1 (en) | 2003-12-24 | 2005-06-29 | Yazaki Corporation | Fusible link unit |
| EP1548785B1 (en) * | 2003-12-24 | 2016-02-24 | Yazaki Corporation | Fusible link unit |
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| Publication number | Publication date |
|---|---|
| JP3861741B2 (en) | 2006-12-20 |
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