JPH05124110A - Terminal pin for welded coupling - Google Patents
Terminal pin for welded couplingInfo
- Publication number
- JPH05124110A JPH05124110A JP3289818A JP28981891A JPH05124110A JP H05124110 A JPH05124110 A JP H05124110A JP 3289818 A JP3289818 A JP 3289818A JP 28981891 A JP28981891 A JP 28981891A JP H05124110 A JPH05124110 A JP H05124110A
- Authority
- JP
- Japan
- Prior art keywords
- contact pin
- resistor
- pin
- contact
- insulator
- 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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
-
- 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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
-
- 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
- B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
- B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶着継手に使用するタ
ーミナルピンに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal pin used for welding joints.
【０００２】[0002]
【従来の技術】ポリエチレン等の熱可塑性樹脂からなる
パイプを相互に接合する場合に溶着継手を使用すること
は一般に知られている。溶着継手は、継手本体が熱可塑
性樹脂で形成され、この継手本体の内周部に導電線が埋
設され、継手本体の外周部に前記導電線と接続した一対
のターミナルピンが設けられている。そして、使用に際
しては、継手本体の両端の開口にパイプの端部を挿入す
ると共に、制御装置のコネクタに各ターミナルピンを差
し込んだ後、ターミナルピンの間に一定の電圧をかけて
通電し、導電線の発熱により周辺の樹脂を溶融させて溶
着継手とパイプを溶着接合するようになっている。2. Description of the Related Art It is generally known to use a welding joint when joining pipes made of a thermoplastic resin such as polyethylene to each other. In the welding joint, the joint main body is formed of a thermoplastic resin, the conductive wire is embedded in the inner peripheral portion of the joint main body, and the pair of terminal pins connected to the conductive wire is provided on the outer peripheral portion of the joint main body. When using it, insert the ends of the pipe into the openings on both ends of the joint body, insert each terminal pin into the connector of the control device, and then apply a constant voltage between the terminal pins to conduct electricity. The heat generated by the wire melts the surrounding resin to weld the welded joint to the pipe.
【０００３】近年、この種の溶着継手には、ターミナル
ピンが、主接点ピンと、この主接点ピンに抵抗体を介し
て接続された補助接点ピンを有しており、ターミナルピ
ンの間に一定電圧をかけると、主接点ピンと補助接点ピ
ンとの間に電流が流れ、その電流値を検出することによ
って抵抗体の抵抗値を求め、その大きさにより主接点ピ
ンを介して導電線に電流が流れる時間が決定するように
なったものがある。In recent years, in this type of welding joint, a terminal pin has a main contact pin and an auxiliary contact pin connected to the main contact pin via a resistor, and a constant voltage is applied between the terminal pins. When a current is applied, a current flows between the main contact pin and the auxiliary contact pin, the resistance value of the resistor is found by detecting the current value, and the time during which the current flows through the conductive wire via the main contact pin There are things that have come to be decided.
【０００４】特開平２−１２９４９３号公報には、この
種の溶着継手の構造が記載されており、ターミナルピン
が、上端に凹部が形成されている主接点ピンと、全体が
該主接点ピンの凹部に主接点ピンと絶縁状態で埋設され
ている抵抗体と、下端部が前記主接点ピンの凹部に主接
点ピンと絶縁状態で埋設されている補助接点ピンと、前
記抵抗体及び補助接点ピンの外周を覆って設けられてい
る絶縁体とで構成されており、前記抵抗体と主接点ピン
がリード線を介して接続されている。Japanese Unexamined Patent Publication (Kokai) No. 2-129493 describes a structure of this kind of welded joint, in which a terminal pin has a main contact pin having a recess at the upper end and a recess of the main contact pin as a whole. The resistor body embedded in an insulating state with the main contact pin, the auxiliary contact pin whose lower end is embedded in the recess of the main contact pin in an insulated state with the main contact pin, and the outer periphery of the resistor body and the auxiliary contact pin. And a main contact pin are connected to each other via a lead wire.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来のターミナルピンは、接点ピンが２本使用されている
ので材料コストが高くなる。また、抵抗体と主接点ピン
とがリード線を介して接続されているので、ターミナル
ピンの製造段階において接点ピンとリード線間をかしめ
る作業が必要になり、それに伴って、製造効率が低下す
ると共に、接続不良を生じたりする。However, since the above-mentioned conventional terminal pin uses two contact pins, the material cost becomes high. Further, since the resistor and the main contact pin are connected via the lead wire, it is necessary to caulk the contact pin and the lead wire at the manufacturing stage of the terminal pin, and accordingly, the manufacturing efficiency is reduced. , Connection failure may occur.
【０００６】そこで、本願出願人は、先に出願した特願
平３−１９５９９号に記載しているように、上端に凹部
が形成されている接点ピンと、該接点ピンの凹部の底に
下端部が埋設されている抵抗体と、前記抵抗体の外周を
覆って設けられている絶縁体とで構成されており、前記
抵抗体と接点ピンが互いに接触しているターミナルピン
を発明した。Therefore, the applicant of the present application, as described in Japanese Patent Application No. 3-19599 previously filed, has a contact pin having a recess at the upper end and a lower end at the bottom of the recess of the contact pin. A terminal pin in which the resistor and the contact pin are in contact with each other is constituted by a resistor in which the resistor is embedded and an insulator provided so as to cover the outer periphery of the resistor.
【０００７】ところが、このターミナルピンは、接点ピ
ンを１本にしたことによって材料コストの削減を図るこ
とができると共に、製造段階において抵抗体と接点ピン
を接触させるだけで接続作業を行なわなくてよいので製
造効率の向上及び品質の安定化を図ることができるもの
の、抵抗体は下端部を除く大部分が絶縁体にのみ覆われ
ているので、絶縁体に横荷重が入力すると、そのエネル
ギーは、抵抗体に曲げモーメントと剪断力を生じさせる
ことに費やされる。従って、ターミナルピンを金型にセ
ットするために固定治具によって保持させる時や、導電
線に通電する時にターミナルピンを制御装置のコネクタ
に差し込む時など、絶縁体に横荷重を入力させなければ
ならない時に、抵抗体が折れたり曲がったりし易いとい
う欠点を残していた。However, since the terminal pin has only one contact pin, the material cost can be reduced, and at the manufacturing stage, only the resistor and the contact pin need to be brought into contact with each other without performing the connecting work. Therefore, although the manufacturing efficiency can be improved and the quality can be stabilized, most of the resistor except the lower end is covered by the insulator, so if a lateral load is input to the insulator, the energy will be Spent on producing bending moments and shear forces on the resistor. Therefore, it is necessary to input a lateral load to the insulator when holding the terminal pin with the fixing jig to set it in the mold, or when inserting the terminal pin into the connector of the control device when energizing the conductive wire. At times, there was a drawback that the resistor was easily broken or bent.
【０００８】そこで、本発明は上記従来の問題に着目
し、材料コストの削減を図ることができると共に、製造
効率の向上及び品質の安定化を図ることができるだけで
なく、絶縁体に横荷重が入力した時に抵抗体が折れたり
曲がったりしないようにすることができる溶着継手用の
ターミナルピンを提供することを目的としている。In view of the above, the present invention pays attention to the above-mentioned conventional problems and can reduce the material cost as well as improve the manufacturing efficiency and stabilize the quality, and the lateral load is applied to the insulator. It is an object of the present invention to provide a terminal pin for a welding joint, which can prevent the resistor from breaking or bending when input.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に本発明のターミナルピンは、上端に凸部が形成されて
いる接点ピンと、該接点ピンの凸部に上端部を残した大
部分が埋設されている抵抗体と、前記接点ピンの凸部と
前記抵抗体の上端部の外周を覆って設けられている絶縁
体とで構成され、前記抵抗体と接点ピンが互いに接触し
ている。In order to achieve the above object, the terminal pin of the present invention comprises a contact pin having a convex portion formed at the upper end and most of the contact pin having an upper end portion remaining at the convex portion. The resistor is embedded, and the insulator is provided so as to cover the outer periphery of the protrusion of the contact pin and the upper end of the resistor, and the resistor and the contact pin are in contact with each other.
【００１０】[0010]
【作用】本発明のターミナルピンは、抵抗体の大部分が
接点ピンの凸部に埋設されているので、絶縁体に横荷重
が入力すると、そのエネルギーは、接点ピンの凸部に曲
げモーメントと剪断力を生じさせることで費やされる。
従って、ターミナルピンを金型にセットするために固定
治具によって保持させる時や、導電線に通電する時にタ
ーミナルピンを制御装置のコネクタに差し込む時など、
絶縁体に横荷重を入力させなければならない時に、抵抗
体が折れたり曲がったりするのを防止できる。In the terminal pin of the present invention, most of the resistor is buried in the convex portion of the contact pin. Therefore, when a lateral load is applied to the insulator, the energy of the lateral load is applied to the convex portion of the contact pin as a bending moment. It is spent in producing shear forces.
Therefore, when holding the terminal pin with a fixing jig to set it in the mold, when inserting the terminal pin into the connector of the control device when energizing the conductive wire, etc.
It is possible to prevent the resistor from being bent or bent when a lateral load needs to be input to the insulator.
【００１１】[0011]
【実施例】以下、本発明の実施例を図１に基づいて説明
する。まず、図１は本発明実施例のターミナルピンＴ１
を示す縦断面図で、図中１は接点ピン、２は抵抗体、３
は絶縁体である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. First, FIG. 1 shows the terminal pin T1 of the embodiment of the present invention.
1 is a contact pin, 2 is a resistor, 3
Is an insulator.
【００１２】前記接点ピン１は、上端と下端にそれぞれ
凸部１１，１２が形成されており、下端部外周にはフラ
ンジ１３が形成されている。また、前記上端の凸部１１
は、外周１１１が上方にむけて拡径するテーパーを有し
ており、前記下端の凸部１２は、導電線を差込可能な有
底孔１２１が形成されている。また、前記フランジ１３
は、外周に窪み１３１が周設されている。The contact pin 1 has projections 11 and 12 formed at the upper end and the lower end, respectively, and a flange 13 formed at the outer periphery of the lower end. In addition, the convex portion 11 at the upper end
Has a taper whose outer circumference 111 expands upward, and the convex portion 12 at the lower end has a bottomed hole 121 into which a conductive wire can be inserted. In addition, the flange 13
Has a recess 131 formed around the outer periphery thereof.
【００１３】なお、前記接点ピン１は、一般に知られて
いるように砲金で形成したものに限らず、ステンレスや
銅あるいはアルミニウム等、砲金以外の金属で形成した
ものでもよいし、導電性プラスチックで形成したもので
もよい。The contact pins 1 are not limited to those made of gun metal as is generally known, but may be made of metal other than gun metal such as stainless steel, copper or aluminum, or conductive plastic. It may be formed.
【００１４】前記抵抗体２は、上端部（上から２〜５ｍ
ｍの部分）を残した大部分が前記接点ピン１の上端の凸
部１１に埋設されており、埋設された部分が前記接点ピ
ン１と接触している。なお、この抵抗体３は、表面が酸
化防止処理（例えばハンダメッキ処理）されている。The resistor 2 has an upper end portion (2 to 5 m from the top).
Most of the remaining portion (m portion) is embedded in the convex portion 11 at the upper end of the contact pin 1, and the embedded portion is in contact with the contact pin 1. The surface of the resistor 3 is subjected to antioxidation treatment (for example, solder plating treatment).
【００１５】前記絶縁体３は、前記接点ピン１の上端の
凸部１１と前記抵抗体２の上端部の外周を覆って設けら
れている。つまり、この絶縁体３は、接点ピン１の凸部
１１に抵抗体２を埋設させたものを金型にインサートし
た後、射出成形することによって形成されており、内周
３１が上方に向けて縮径するテーパーを有し、前記接点
ピン１の凸部１１に符合している。また、この絶縁体３
は、前記接点ピン１よりも外径が小さく形成されてい
る。The insulator 3 is provided so as to cover the projection 11 at the upper end of the contact pin 1 and the outer periphery of the upper end of the resistor 2. That is, the insulator 3 is formed by inserting the resistor 2 embedded in the convex portion 11 of the contact pin 1 into a mold and then performing injection molding, so that the inner circumference 31 faces upward. It has a taper that reduces its diameter and matches the convex portion 11 of the contact pin 1. Also, this insulator 3
Has an outer diameter smaller than that of the contact pin 1.
【００１６】なお、この絶縁体３は、絶縁性の高いポリ
アセタール樹脂が好ましいが、例えば、ポリプロピレン
樹脂やポリエチレン樹脂やポリ塩化ビニル樹脂等の合成
樹脂であってもよい。The insulator 3 is preferably a polyacetal resin having a high insulating property, but may be a synthetic resin such as polypropylene resin, polyethylene resin or polyvinyl chloride resin.
【００１７】次に、図２に基づいて第１実施例の作用を
説明する。Next, the operation of the first embodiment will be described with reference to FIG.
【００１８】図２は本実施例のターミナルピンＴ１を使
用した溶着継手Ｓの両端にパイプＰ１，Ｐ２の端部を挿
入した状態を示す部分断面図である。前記ターミナルピ
ンＴ１は、継手本体４の内周部に埋設されている導電線
５の両端に接続され、継手本体４の外周部に埋設されて
いる。FIG. 2 is a partial cross-sectional view showing a state in which the ends of the pipes P1 and P2 are inserted into both ends of the welding joint S using the terminal pin T1 of this embodiment. The terminal pins T1 are connected to both ends of the conductive wire 5 embedded in the inner peripheral portion of the joint body 4 and embedded in the outer peripheral portion of the joint body 4.
【００１９】前記パイプＰ１，Ｐ２を相互に溶着接合す
る場合には、図２に示すように、溶着継手４の両端にパ
イプＰ１，Ｐ２の端部を挿入し、各ターミナルピンＴ１
を制御装置のコネクタ（図示省略）に差し込む。制御装
置のコネクタは、特開平２−１２９４９３号公報の中で
記載されているように、第１接点と第２接点とを備えた
既存のものを使用し、コネクタの第１接点とターミナル
ピンＴ１の抵抗体３とを接触させると共に、コネクタの
第２接点とターミナルピンＴ１の接点ピン１とを接触さ
せる。そして、ターミナルピンＴ１、Ｔ１の間に一定電
圧をかけて通電し、導電線５の発熱により周辺の樹脂を
溶融させて溶着継手Ｓと両パイプＰ１，Ｐ２を溶着接合
する。このとき、制御装置でその電流値を検出し、その
電流値から抵抗体３の抵抗値を求め、その抵抗値に基づ
いて決定された時間だけ導電線５に電流を流すことがで
きる。そうすることにより、加熱不足あるいは過加熱を
防止して溶着不良を防ぐことができる。When welding the pipes P1 and P2 to each other by welding, as shown in FIG. 2, the ends of the pipes P1 and P2 are inserted into both ends of the welding joint 4 and each terminal pin T1 is inserted.
Is inserted into the connector (not shown) of the control device. As the connector of the control device, as described in JP-A-2-129493, an existing one having a first contact and a second contact is used, and the first contact of the connector and the terminal pin T1 are used. And the second contact of the connector and the contact pin 1 of the terminal pin T1. Then, a constant voltage is applied between the terminal pins T1 and T1 to energize the resin to melt the surrounding resin by heat generation of the conductive wire 5 to weld and weld the welding joint S and the pipes P1 and P2. At this time, the current value can be detected by the control device, the resistance value of the resistor 3 can be obtained from the current value, and the current can be passed through the conductive wire 5 for the time determined based on the resistance value. By doing so, insufficient heating or overheating can be prevented to prevent defective welding.
【００２０】また、本実施例のターミナルピンＴ１は、
抵抗体３の大部分が接点ピン１の上端の凸部１１に埋設
されているので、絶縁体３に横荷重が入力すると、その
エネルギーは、接点ピン１の凸部１１に曲げモーメント
と剪断力を生じさせることで費やされる。従って、ター
ミナルピンＴ１を金型にセットするために固定治具によ
って保持させる時や、導電線５に通電する時にターミナ
ルピンＴ１を制御装置のコネクタに差し込む時など、絶
縁体３に横荷重を入力させなければならない時に、抵抗
体２が折れたり曲がったりするのを防止できる。The terminal pin T1 of this embodiment is
Since the majority of the resistor 3 is embedded in the protrusion 11 at the upper end of the contact pin 1, when a lateral load is input to the insulator 3, the energy of the lateral load is applied to the protrusion 11 of the contact pin 1 by bending moment and shearing force. Is spent in producing. Therefore, a lateral load is applied to the insulator 3 when holding the terminal pin T1 with a fixing jig to set it in the mold or when inserting the terminal pin T1 into the connector of the control device when energizing the conductive wire 5. It is possible to prevent the resistor 2 from being bent or bent when it is necessary.
【００２１】更に、接点ピン１の凸部１１は、外周１１
１が上方にむけて拡径するテーパーを有し、絶縁体３
は、内周３１が上方に向けて縮径するテーパーを有して
いるので、接点ピン１の凸部１１の外周１１１と絶縁体
３の内周３１との符合が邪魔をして、絶縁体３が接点ピ
ン１から抜け外れ難くなっている。Further, the convex portion 11 of the contact pin 1 has an outer periphery 11
1 has a taper that expands toward the upper side, and an insulator 3
Has an inner circumference 31 that has a taper that reduces in diameter upward, so that the sign of the outer circumference 111 of the protrusion 11 of the contact pin 1 and the inner circumference 31 of the insulator 3 obstructs the insulation. 3 is hard to come off from the contact pin 1.
【００２２】次に、図３〜図５に基づいて、第２実施例
〜第４実施例のターミナルピンＰ２〜Ｐ４について説明
する。なお、ターミナルピンＰ２〜Ｐ４は、第１実施例
のターミナルピンＰ１と異なる部分のみ説明し、その他
の部分は図面に第１実施例と同一の符号を付して説明を
省略する。Next, the terminal pins P2 to P4 of the second to fourth embodiments will be described with reference to FIGS. It should be noted that the terminal pins P2 to P4 will be described only with respect to portions different from the terminal pin P1 of the first embodiment, and other portions will be denoted by the same reference numerals as those in the first embodiment in the drawings and description thereof will be omitted.
【００２３】まず、第２実施例のターミナルピンＴ２
は、接点ピン１ａの凸部１１ａの外周及び絶縁体３ａの
内周にテーパーを設ける代りに、接点ピン１ａ側には孔
１１２を形成し、絶縁体３ａ側にはこの孔１１２に嵌合
するボス３２を設け、これらの嵌合が邪魔をして、絶縁
体３ａが接点ピン１ａから抜け外れ難くなっている。First, the terminal pin T2 of the second embodiment.
Instead of providing a taper on the outer circumference of the convex portion 11a of the contact pin 1a and the inner circumference of the insulator 3a, a hole 112 is formed on the contact pin 1a side and the hole 112 is fitted on the insulator 3a side. The boss 32 is provided, and the fitting of these interferes with the insulator 3a so that the insulator 3a does not easily come off from the contact pin 1a.
【００２４】次に、第３及び第４実施例のターミナルピ
ンＴ３，Ｔ４は、接点ピン１ｂ，１ｃの凸部１１ｂ，１
１ｃの上端に抵抗体２よりも径が大きい凹部１１３，１
１４を形成し、絶縁体３ｂ，３ｃにこの凹部１１３，１
１４と抵抗体２との隙間に嵌合した内筒部３３，３４を
設けている。この絶縁体３ｂ，３ｃの内筒部３３，３４
は、絶縁体３ｂ，３ｃを成形する時に、樹脂がこの接点
ピン１ｂ，１ｃの凹部１１３，１１４と抵抗体２との隙
間に浸入することによって形成されるので、抵抗体２と
の密着性が高い。従って、接点ピン１ｂ，１ｃと抵抗体
２との間に水が浸入し難くなっている。また、ターミナ
ルピンＴ３，Ｔ４は、接点ピン１ｂ，１ｃと絶縁体３
ｂ，３ｃが、同一の外径で形成されている。Next, the terminal pins T3 and T4 of the third and fourth embodiments are the protrusions 11b and 1 of the contact pins 1b and 1c.
The recesses 113, 1 having a diameter larger than that of the resistor 2 are provided at the upper end of 1c
14 are formed in the insulators 3b and 3c.
Inner tube portions 33 and 34 fitted in the gap between the resistor 14 and the resistor 2 are provided. Inner tube portions 33, 34 of the insulators 3b, 3c
Is formed by the resin penetrating into the gap between the recesses 113, 114 of the contact pins 1b, 1c and the resistor 2 when the insulators 3b, 3c are molded, so that the adhesiveness with the resistor 2 is improved. high. Therefore, it is difficult for water to enter between the contact pins 1b and 1c and the resistor 2. The terminal pins T3 and T4 are connected to the contact pins 1b and 1c and the insulator 3
b and 3c are formed with the same outer diameter.
【００２５】更に、第４実施例のターミナルピンは、接
点ピン１ｃの凸部１１ｃの外周及び絶縁体３ｃの内周に
テーパーを設ける代わりに、接点ピン１ｃ側には孔１１
５を形成し、絶縁体３ｃ側にはこの孔１１５に嵌合する
ボス３５を設け、これらの嵌合が邪魔をして、絶縁体３
ｃが接点ピン１ｃから抜け外れ難くなっている。Further, in the terminal pin of the fourth embodiment, instead of providing the taper on the outer circumference of the convex portion 11c of the contact pin 1c and the inner circumference of the insulator 3c, the hole 11 is formed on the contact pin 1c side.
5, a boss 35 that fits into the hole 115 is provided on the side of the insulator 3c, and these fittings interfere with each other so that the insulator 3
It is difficult for c to come off from the contact pin 1c.
【００２６】以上、本発明の実施例を図面により詳述し
てきたが、具体的な構成はこの実施例に限られるもので
はなく、本発明の要旨を逸脱しない範囲における設計の
変更等があっても本発明に含まれる。例えば、接点ピン
と絶縁体との間の耐水性を向上させるために、接点ピン
と絶縁体との間にシール材を介在させたり、コーキング
材を充填させたりしてもよい。The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, in order to improve the water resistance between the contact pin and the insulator, a seal material may be interposed between the contact pin and the insulator or a caulking material may be filled.
【００２７】[0027]
【発明の効果】以上説明してきたように、本発明のター
ミナルピンは、接点ピンを１本しか用いていないので材
料コストの削減を図ることができるし、製造段階におい
て抵抗体と接点ピンを接触させるだけで接続しなくてよ
いので製造効率の向上及び品質の安定化を図ることがで
きる。また、抵抗体の大部分が接点ピンの凸部に埋設さ
れているので、絶縁体に横荷重が入力した時に抵抗体が
折れたり曲がったりしないという効果も得られる。As described above, since the terminal pin of the present invention uses only one contact pin, the material cost can be reduced, and the resistor and the contact pin are contacted at the manufacturing stage. Since it is not necessary to connect just by making it possible to improve the manufacturing efficiency and stabilize the quality. Further, since most of the resistors are embedded in the protrusions of the contact pins, the resistors are not bent or bent when a lateral load is applied to the insulator.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明第１実施例のターミナルピンを示す断面
図である。FIG. 1 is a sectional view showing a terminal pin of a first embodiment of the present invention.
【図２】本実施例のターミナルピンを使用した溶着継手
の両端にパイプの端部を挿入した状態を示す部分断面図
である。FIG. 2 is a partial cross-sectional view showing a state in which end portions of a pipe are inserted into both ends of a welding joint using the terminal pin of this embodiment.
【図３】本発明第２実施例のターミナルピンを示す断面
図である。FIG. 3 is a sectional view showing a terminal pin of a second embodiment of the present invention.
【図４】本発明第３実施例のターミナルピンを示す断面
図である。FIG. 4 is a sectional view showing a terminal pin according to a third embodiment of the present invention.
【図５】本発明第４実施例のターミナルピンを示す断面
図である。FIG. 5 is a sectional view showing a terminal pin of a fourth embodiment of the present invention.
Ｐ ターミナルピン １ 接点ピン １１ 筒状部 ２ 抵抗体 ３ 樹脂 P Terminal pin 1 Contact pin 11 Cylindrical part 2 Resistor 3 Resin
Claims (1)
と、該接点ピンの凸部に上端部を残した大部分が埋設さ
れている抵抗体と、前記接点ピンの凸部と前記抵抗体の
上端部の外周を覆って設けられている絶縁体とで構成さ
れ、前記抵抗体と接点ピンが互いに接触していることを
特徴とするターミナルピン。1. A contact pin having a convex portion formed on an upper end, a resistor body in which most of the convex portion of the contact pin except the upper end portion is embedded, and a convex portion of the contact pin and the resistor body. And an insulator provided to cover the outer circumference of the upper end of the terminal pin, wherein the resistor and the contact pin are in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3289818A JP2515939B2 (en) | 1991-11-06 | 1991-11-06 | Terminal pin for welding joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3289818A JP2515939B2 (en) | 1991-11-06 | 1991-11-06 | Terminal pin for welding joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05124110A true JPH05124110A (en) | 1993-05-21 |
| JP2515939B2 JP2515939B2 (en) | 1996-07-10 |
Family
ID=17748169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3289818A Expired - Fee Related JP2515939B2 (en) | 1991-11-06 | 1991-11-06 | Terminal pin for welding joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515939B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101103024B1 (en) * | 2011-01-20 | 2012-01-05 | (주)폴리텍 | Electrofusion type jointing pipe |
-
1991
- 1991-11-06 JP JP3289818A patent/JP2515939B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101103024B1 (en) * | 2011-01-20 | 2012-01-05 | (주)폴리텍 | Electrofusion type jointing pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2515939B2 (en) | 1996-07-10 |
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| LAPS | Cancellation because of no payment of annual fees |