JPH04258593A - Terminal pin for weld joint and manufacture thereof - Google Patents
Terminal pin for weld joint and manufacture thereofInfo
- Publication number
- JPH04258593A JPH04258593A JP3017599A JP1759991A JPH04258593A JP H04258593 A JPH04258593 A JP H04258593A JP 3017599 A JP3017599 A JP 3017599A JP 1759991 A JP1759991 A JP 1759991A JP H04258593 A JPH04258593 A JP H04258593A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- contact pin
- pin
- resin
- terminal pin
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 229920005992 thermoplastic resin Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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"
- B29C65/3468—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
- B29C66/124—Tongue and groove joints
- B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
- B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
-
- 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
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
-
- 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"
-
- 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
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、溶着継手に採用される
ターミナルピンとその製造方法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 employed in a welded joint and a method for manufacturing the same.
【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。この溶着継手は、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。また、上記溶
着継手を使用する場合には、継手本体の両端部にパイプ
を挿入し、ターミナルピンの間に一定の電圧をかけて通
電する。そうすると、導電線の発熱により周辺の樹脂が
溶融して溶着継手とパイプが互いに溶着する。BACKGROUND OF THE INVENTION It is generally known to use welded joints to join together pipes made of thermoplastic resin such as polyethylene. In this welded joint, the joint body is made of thermoplastic resin, a conductive wire is embedded in the inner circumference of the joint body, and a pair of terminal pins connected to the conductive wire are provided on the outer circumference of the joint body. . When using the welded joint, pipes are inserted into both ends of the joint body, and a constant voltage is applied between the terminal pins to energize. Then, the surrounding resin melts due to the heat generated by the conductive wire, and the welding joint and the pipe are welded to each other.
【０００３】ところで、特開平２−１２９４９３号公報
には、溶着継手のターミナルピンの構造が記載されてい
る。この従来のターミナルピンは、筒状部が形成されて
いる接点ピンと、前記筒状部の内側に設けられた抵抗体
と、該抵抗体の上に設けられた補助接点ピンとを備え、
前記接点ピンと抵抗体の間及び補助接点ピンと抵抗体と
の間を絶縁して樹脂が充填されている。また、前記抵抗
体の上端部はリード線を介して補助接点ピンと接続され
、前記抵抗体の下端部はリード線を介して主接点ピンと
接続されている。従って、このターミナルピンをコント
ローラー側のコネクタと接続する場合には、主接点ピン
にコネクタの第１接点を当接させると共に補助接点ピン
にコネクタの第２接点を当接させる。そうすると、抵抗
体の抵抗値に基づいて設定された時間だけ溶着継手の導
電線に電流が流れ、導電線が加熱する。By the way, Japanese Unexamined Patent Publication No. 2-129493 describes the structure of a terminal pin of a welded joint. This conventional terminal pin includes a contact pin in which a cylindrical part is formed, a resistor provided inside the cylindrical part, and an auxiliary contact pin provided on the resistor,
A resin is filled to insulate between the contact pin and the resistor and between the auxiliary contact pin and the resistor. Further, the upper end of the resistor is connected to an auxiliary contact pin via a lead wire, and the lower end of the resistor is connected to a main contact pin via a lead wire. Therefore, when connecting this terminal pin to a connector on the controller side, the first contact of the connector is brought into contact with the main contact pin, and the second contact of the connector is brought into contact with the auxiliary contact pin. Then, current flows through the conductive wire of the welded joint for a set time based on the resistance value of the resistor, and the conductive wire is heated.
【０００４】0004
【発明が解決しようとする課題】上記従来のターミナル
ピンは、接点ピンが二本使用されているので、材料コス
トが高くなる。また、抵抗体の接続が主接点ピンと補助
接点ピンに対して行なわれており、しかもその接続がか
しめ作業を必要とするリード線を介した構造であるため
、製造時における作業能率が悪いという問題があった。[Problems to be Solved by the Invention] Since the conventional terminal pin described above uses two contact pins, the material cost is high. Another problem is that the resistor is connected to the main contact pin and auxiliary contact pin, and the connection is via lead wires that require caulking, resulting in poor work efficiency during manufacturing. was there.
【０００５】また、従来のターミナルピンは、主接点ピ
ンと抵抗体との間に樹脂を充填している途中、樹脂圧に
より抵抗体が動いて主接点ピンに接触する恐れがあり、
品質が悪いという問題があった。Furthermore, with conventional terminal pins, there is a risk that the resistor may move due to the resin pressure and come into contact with the main contact pin while the resin is being filled between the main contact pin and the resistor.
There was a problem with poor quality.
【０００６】そこで、本発明は上記従来の問題に着目し
、材料コストの削減及び製造時における作業能率の向上
を図ることができる溶着継手用のターミナルピンを提供
することを第１の目的としている。また、本発明は、品
質の高い溶着継手用のターミナルピンを製造することが
できる製造方法を提供することを第２の目的としている
。Therefore, the present invention has focused on the above-mentioned conventional problems, and has as its first object to provide a terminal pin for a welded joint that can reduce material costs and improve work efficiency during manufacturing. . A second object of the present invention is to provide a manufacturing method capable of manufacturing high-quality terminal pins for welded joints.
【０００７】[0007]
【課題を解決するための手段】上記第１の目的を達成す
るために本発明のターミナルピンは、接点ピンに筒状部
が形成され、該筒状部の内側に抵抗体が設けられ、前記
接点ピンと抵抗体の間を絶縁して樹脂が充填されている
溶着継手用のターミナルピンにおいて、前記抵抗体の上
端部が外に露出し、前記抵抗体の下端部が前記接点ピン
の筒状部と嵌合により接続されている。Means for Solving the Problems In order to achieve the above first object, the terminal pin of the present invention has a cylindrical portion formed in the contact pin, a resistor provided inside the cylindrical portion, and the terminal pin of the present invention. In a terminal pin for a welded joint in which the contact pin and the resistor are insulated and filled with resin, the upper end of the resistor is exposed to the outside, and the lower end of the resistor is connected to the cylindrical part of the contact pin. Connected by mating.
【０００８】また上記第２の目的を達成するために本発
明のターミナルピンの製造方法は、接点ピンに形成され
ている筒状部と抵抗体の下端部を嵌合させて接続した後
、前記筒状部と抵抗体との間隙に樹脂を充填する方法で
ある。In addition, in order to achieve the above second object, the method for manufacturing a terminal pin of the present invention is such that the cylindrical portion formed in the contact pin and the lower end portion of the resistor are fitted and connected, and then the This is a method of filling the gap between the cylindrical part and the resistor with resin.
【０００９】[0009]
【作用】本発明のターミナルピンは、熱可塑性樹脂製の
継手本体の内周部に埋設されている導電線に接続される
と共に、第１接点と第２接点とを備えたコントローラー
側のコネクタに接続される。即ち、前記導電線との接続
は接点ピンで行ない、前記コネクタとの接続は、第１接
点に対しては接点ピンで行ない、第２接点に対しては抵
抗体の上端部で行なう。そうすると、抵抗体の抵抗値に
基づいて設定した時間だけ導電線に電流を流すことがで
きるようになる。[Operation] The terminal pin of the present invention is connected to a conductive wire buried in the inner circumference of the joint body made of thermoplastic resin, and is connected to a connector on the controller side that has a first contact and a second contact. Connected. That is, the connection to the conductive wire is made by a contact pin, the first contact is made by a contact pin, and the second contact is made by the upper end of the resistor. This allows current to flow through the conductive wire for a set time based on the resistance value of the resistor.
【００１０】また、本発明のターミナルピンの製造方法
にあっては、接点ピンに形成されている筒状部と抵抗体
の下端部を嵌合させて接続するので、接点ピンと抵抗体
の下端部を接続した時点で抵抗体は固定される。従って
、その後、接点ピンの筒状部と抵抗体との間隙に樹脂を
充填する際に樹脂圧で抵抗体が動くこともなく、接点ピ
ンの筒状部と抵抗体との間を樹脂によって確実に絶縁す
ることができる。つまり、品質の高い溶着継手用のター
ミナルピンを製造することができる。Further, in the method for manufacturing a terminal pin of the present invention, since the cylindrical portion formed on the contact pin and the lower end of the resistor are connected by fitting, the contact pin and the lower end of the resistor are connected. The resistor is fixed as soon as it is connected. Therefore, when filling the gap between the cylindrical part of the contact pin and the resistor with resin, the resin pressure does not cause the resistor to move, and the resin secures the gap between the cylindrical part of the contact pin and the resistor. can be insulated. In other words, high quality terminal pins for welded joints can be manufactured.
【００１１】[0011]
【実施例】以下、本発明の実施例を図１〜図８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Ｐを示す縦断面図で、図中１は接点ピン、２は抵抗体
である。Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 to 8. First, FIG. 1 is a longitudinal sectional view showing a terminal pin P according to an embodiment of the present invention, in which 1 is a contact pin and 2 is a resistor.
【００１２】前記接点ピン１は、上端部には筒状部１１
が形成され、下端部には導電線と接続する突部１２が形
成され、中程部にはフランジ１３が形成されている。ま
た、フランジ１３の外周には、リング状の窪み１３１が
形成されている。更に、前記接点ピン１の筒状部１１の
内周は、軸方向のほぼ中心で径が変化しており、筒状部
１１の内側には開口側に大径穴１４、奥に小径穴１５が
形成されている。尚、前記小径穴１５は、抵抗体２の径
と同じあるいは僅かに小さく形成されており、大径穴１
４にはリング状の窪み１６が形成されている。また、前
記接点ピン１は砲金製のものが好ましいが、例えば、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
製のものであってもよいし、導電性プラスチック製のも
のであってもよい。The contact pin 1 has a cylindrical portion 11 at its upper end.
A protrusion 12 is formed at the lower end to connect to the conductive wire, and a flange 13 is formed at the middle. Further, a ring-shaped depression 131 is formed on the outer periphery of the flange 13. Furthermore, the diameter of the inner circumference of the cylindrical portion 11 of the contact pin 1 changes approximately at the center in the axial direction, and the inside of the cylindrical portion 11 has a large diameter hole 14 on the opening side and a small diameter hole 15 on the inner side. is formed. The small diameter hole 15 is formed to be the same as or slightly smaller than the diameter of the resistor 2, and the large diameter hole 1
4 has a ring-shaped depression 16 formed therein. Further, the contact pin 1 is preferably made of gun metal, but may be made of metal other than gun metal, such as stainless steel, copper, or aluminum, or may be made of conductive plastic.
【００１３】前記抵抗体２は、前記接点ピン１に形成さ
れている筒状部１１の内側に設けられており、下端部が
前記接点ピン１の小径穴１５と嵌合して接点ピン１と接
続されている。尚、抵抗体２の下端面と小径穴１５の底
とは当接している。また、前記抵抗体２の上端部は前記
筒状部１１の上端面よりも上方に突出しており、表面は
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 is provided inside a cylindrical portion 11 formed in the contact pin 1, and its lower end fits into the small diameter hole 15 of the contact pin 1 and is connected to the contact pin 1. It is connected. Note that the lower end surface of the resistor 2 and the bottom of the small diameter hole 15 are in contact with each other. Further, the upper end portion of the resistor 2 protrudes above the upper end surface of the cylindrical portion 11, and the surface is subjected to oxidation prevention treatment (for example, solder plating treatment).
【００１４】図３は前記抵抗体２の一例を示す側面図で
、この抵抗体２は、磁器棒２１の外周に金属皮膜２２を
設け、該金属皮膜２２の外周に絶縁塗料２３を塗布し、
前記磁器棒２１及び金属皮膜２２の両端に鉄または黄銅
のキャップ２４，２５を被せて構成されている。FIG. 3 is a side view showing an example of the resistor 2. This resistor 2 has a metal film 22 provided on the outer periphery of a porcelain bar 21, an insulating paint 23 applied to the outer periphery of the metal film 22, and
Both ends of the porcelain bar 21 and metal coating 22 are covered with caps 24 and 25 made of iron or brass.
【００１５】また、前記接点ピン１の大径穴１４と抵抗
体２との間には、前記接点ピン１と抵抗体２の間を絶縁
して樹脂３が充填されている。尚、充填する樹脂３は、
絶縁性の高いポリアセタールが好ましいが、例えば、ポ
リプロピレンやポリエチレンやポリ塩化ビニル等の樹脂
であってもよい。また、前記樹脂３は、接点ピン１の大
径穴１４に形成されているリング状の窪み１６内にも充
填されていて抵抗体２が接点ピン１から抜け難くする役
目も果たしている。更に前記樹脂３は、下端部を除く抵
抗体２の外周を覆って設けられており、抵抗体２の表面
を保護する役目も果たしている。Furthermore, a resin 3 is filled between the large diameter hole 14 of the contact pin 1 and the resistor 2 to insulate the contact pin 1 and the resistor 2. In addition, the resin 3 to be filled is
Polyacetal with high insulation properties is preferred, but resins such as polypropylene, polyethylene, and polyvinyl chloride may also be used. Further, the resin 3 is also filled in a ring-shaped depression 16 formed in the large diameter hole 14 of the contact pin 1, and serves to prevent the resistor 2 from coming out from the contact pin 1. Furthermore, the resin 3 is provided to cover the outer periphery of the resistor 2 except for the lower end, and also serves to protect the surface of the resistor 2.
【００１６】本実施例のターミナルピンＰは、熱可塑性
樹脂製の継手本体の内周部に埋設されている導電線に接
続されると共に、第１接点と第２接点とを備えたコント
ローラー側のコネクタに接続される。即ち、前記導電線
との接続は接点ピン１の突部１２で行ない、前記コネク
タとの接続は、第１接点に対しては接点ピン１の筒状部
１１で行ない、第２接点に対しては抵抗体２の上端部で
行なう。そうすると、抵抗体２の抵抗値に基づいて設定
した時間だけ導電線に電流を流すことができるようにな
る。尚、上述のように本実施例のターミナルピンＰは、
抵抗体２の上端面にコネクタの接点を接続するものであ
るが、抵抗体２の上端面は酸化防止処理されているので
接触不良は生じない。ちなみに、継手本体の具体的な構
造及びコントローラー側のコネクタの具体的な構造とし
ては、従来の技術で挙げた特開平２−１２９４９３号公
報の中に示されているもの等がある。The terminal pin P of this embodiment is connected to a conductive wire buried in the inner circumference of the joint body made of thermoplastic resin, and is connected to a controller side having a first contact and a second contact. connected to the connector. That is, the connection with the conductive wire is made by the protrusion 12 of the contact pin 1, the connection with the connector is made by the cylindrical part 11 of the contact pin 1 for the first contact, and the connection for the second contact is made by the cylindrical part 11 of the contact pin 1. is performed at the upper end of the resistor 2. Then, current can be passed through the conductive wire for a set time based on the resistance value of the resistor 2. Incidentally, as mentioned above, the terminal pin P of this embodiment is
The contacts of the connector are connected to the upper end surface of the resistor 2, and since the upper end surface of the resistor 2 is treated to prevent oxidation, no contact failure will occur. Incidentally, the specific structure of the joint body and the specific structure of the connector on the controller side include those shown in Japanese Patent Application Laid-Open No. 2-129493 mentioned in the section of the prior art.
【００１７】図２は、接点ピン１の筒状部１１の形状が
異なるターミナルピンＰの変形例を示している。即ち、
（イ）は、筒状部１１の内周が垂直に形成されており、
大径穴１４ａが一定の径で形成されている。（ロ）は、
筒状部１１の内周が開口部に向けて拡径して形成されて
おり、大径穴１４ｂが口広がりに形成されている。
（ハ）は、筒状部１１の内周が開口部に向けて縮径して
形成されており、大径穴１４ｃが口すぼまりに形成され
ている。尚、接点ピン１の筒状部１１の形状はここで示
した以外の形状であってもよく、内周の平面形状も円形
と多角形のどちらであってもよい。FIG. 2 shows a modification of the terminal pin P in which the cylindrical portion 11 of the contact pin 1 has a different shape. That is,
In (a), the inner periphery of the cylindrical part 11 is formed vertically,
A large diameter hole 14a is formed with a constant diameter. (b) is
The inner periphery of the cylindrical portion 11 is formed to expand in diameter toward the opening, and the large diameter hole 14b is formed to have a wide opening. In (c), the inner periphery of the cylindrical portion 11 is formed so as to be reduced in diameter toward the opening, and the large diameter hole 14c is formed to be tapered. The shape of the cylindrical portion 11 of the contact pin 1 may be other than that shown here, and the planar shape of the inner circumference may be either circular or polygonal.
【００１８】次に、図４〜図６に基づいて前記ターミナ
ルピンＰの製造方法を説明する。Next, a method for manufacturing the terminal pin P will be explained based on FIGS. 4 to 6.
【００１９】図４及び図６は射出成形用の金型４を示す
断面図で、４１は固定型、４２は可動型、４３はゲート
、４４は突き出しピンである。前記固定型４１と可動型
４２のそれぞれには、型合わせした際にキャビティを形
成する穴４１１，４２１が形成されている。前記ゲート
４３は前記固定型４１に形成されており、キャビティに
対して斜めから樹脂を射出するように延在している。
また、前記突き出しピン４４は前記可動型４２に設けら
れている。また、図５に示すように前記固定型４１の穴
４１１には平面部４１２が形成されており、ゲート４３
はこの平面部２１２で穴４１１に開通している。4 and 6 are cross-sectional views showing a mold 4 for injection molding, where 41 is a fixed mold, 42 is a movable mold, 43 is a gate, and 44 is an ejection pin. Holes 411 and 421 are formed in each of the fixed mold 41 and the movable mold 42 to form cavities when the molds are matched. The gate 43 is formed on the fixed mold 41 and extends so as to inject resin obliquely into the cavity. Further, the ejecting pin 44 is provided on the movable mold 42. Further, as shown in FIG. 5, a flat portion 412 is formed in the hole 411 of the fixed mold 41, and a gate 43
The flat portion 212 opens into the hole 411 .
【００２０】前記ターミナルピンＰを製造する場合には
、まず、接点ピン１と抵抗体２を接続する。接点ピン１
と抵抗体２は、接点ピン１に形成されている筒状部１１
と抵抗体２の下端部を嵌合させて接続するので、接続し
た時点で抵抗体２は接点ピン１に固定されることになる
。When manufacturing the terminal pin P, first, the contact pin 1 and the resistor 2 are connected. Contact pin 1
and the resistor 2 are connected to the cylindrical portion 11 formed on the contact pin 1.
The resistor 2 is connected by fitting the lower end of the resistor 2 to the contact pin 1, so that the resistor 2 is fixed to the contact pin 1 at the time of connection.
【００２１】次に、固定型４１の穴４２１あるいは可動
型４２の穴４２１に前記接点ピン１を差し込んで設置し
、固定型４１と可動型４２とを型合わせする（図４参照
）。そして、固定型４１と可動型４２との間に形成され
たキャビティＫにゲート４３を通して樹脂を射出し、接
点ピン１の筒状部１１と抵抗体２との間隙に樹脂を充填
する。この時点で、抵抗体２は接点ピン１に固定されて
いるので、接点ピン１の筒状部１１と抵抗体２との間隙
に樹脂が充填される際に樹脂圧で抵抗体２が動くことが
ない。Next, the contact pin 1 is inserted and installed into the hole 421 of the fixed mold 41 or the hole 421 of the movable mold 42, and the fixed mold 41 and the movable mold 42 are matched (see FIG. 4). Then, resin is injected into the cavity K formed between the fixed mold 41 and the movable mold 42 through the gate 43, and the gap between the cylindrical portion 11 of the contact pin 1 and the resistor 2 is filled with the resin. At this point, the resistor 2 is fixed to the contact pin 1, so when the resin is filled into the gap between the cylindrical part 11 of the contact pin 1 and the resistor 2, the resin pressure will cause the resistor 2 to move. There is no.
【００２２】最後に、可動型４２の穴４２１にターミナ
ルピンＰを嵌合させたままの状態で型開きをする（図６
参照）。そうするとゲート４３は、型開き時に樹脂３と
ゲート４３との間に生じる剪断力によって切断される。
従って、ゲート４３の先端が樹脂３に引っ張られないよ
うに切断されるので、樹脂３の表面に跡が残らない。つ
まり、樹脂３の表面の仕上げ作業が必要ない。Finally, the mold is opened with the terminal pin P still fitted into the hole 421 of the movable mold 42 (FIG. 6).
reference). Then, the gate 43 is cut by the shearing force generated between the resin 3 and the gate 43 when the mold is opened. Therefore, since the tip of the gate 43 is cut so that it is not pulled by the resin 3, no marks are left on the surface of the resin 3. In other words, finishing work on the surface of the resin 3 is not necessary.
【００２３】つまり、上述の製造方法によれば、接点ピ
ン１の筒状部１１と抵抗体２との間隙に樹脂を充填する
際に樹脂圧で抵抗体２が動くことがないので、接点ピン
１の筒状部１１と抵抗体２との間が確実に絶縁された品
質の高いターミナルピンＰを製造することができる。In other words, according to the above manufacturing method, when filling the gap between the cylindrical portion 11 of the contact pin 1 and the resistor 2 with resin, the resistor 2 does not move due to resin pressure, so the contact pin It is possible to manufacture a high-quality terminal pin P in which the cylindrical portion 11 and the resistor 2 are reliably insulated.
【００２４】また、上記ターミナルピンＰは、接点ピン
を１本しか用いていないため、材料コストの削減を図る
ことができるし、接続部が主接点ピン１と抵抗体２間の
一箇所であり、しかもその接続が嵌合による接続なので
、従来に比べて製造時における作業能率もよくなるとい
う効果が得られる。Furthermore, since the terminal pin P uses only one contact pin, it is possible to reduce the material cost, and the connection part is at one place between the main contact pin 1 and the resistor 2. Moreover, since the connection is made by fitting, it is possible to obtain the effect of improving work efficiency during manufacturing compared to the conventional method.
【００２５】図７は金型４の変形例を示しており、この
金型４は、可動型４２を本体４２ａとコア４２ｂとに分
割した例である。尚、分割する位置は、実線で示すよう
に穴４２１の底で分割してもよいし、一点鎖線で示すよ
うに穴４２１の途中で分割してもよい。いずれの場合で
あってもコア４２ｂを複数用意しておくことにより、金
型４の摩耗を少なくして耐久性を向上させることができ
る。FIG. 7 shows a modification of the mold 4, in which the movable mold 42 is divided into a main body 42a and a core 42b. Note that the dividing position may be at the bottom of the hole 421 as shown by a solid line, or in the middle of the hole 421 as shown by a chain line. In either case, by preparing a plurality of cores 42b, wear of the mold 4 can be reduced and durability can be improved.
【００２６】図８は、ランナー構造の一例を示している
。この図に示すように複数のゲート（図では１０個のゲ
ート）を備えたランナー構造にすれば、更に能率的にタ
ーミナルピンを成形することができる。FIG. 8 shows an example of a runner structure. As shown in this figure, if the runner structure is provided with a plurality of gates (10 gates in the figure), the terminal pin can be formed more efficiently.
【００２７】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、実施例で
は、金属皮膜を備えた抵抗体が採用されているターミナ
ルピンを示したが、抵抗体には、炭素皮膜を備えたもの
を採用してもよい。また、穴４２１のフランジ１３に接
触する部分には、フランジ１３の窪み１３１に嵌合する
突出部（突起あるいはボールチェック）を設けてもよい
。Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the design may be changed without departing from the gist of the present invention. are also included in the present invention. For example, in the embodiment, a terminal pin employing a resistor provided with a metal film is shown, but the resistor may be provided with a carbon film. Further, a protrusion (protrusion or ball check) that fits into the recess 131 of the flange 13 may be provided in a portion of the hole 421 that contacts the flange 13 .
【００２８】[0028]
【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ため、
材料コストの削減を図ることができる。また、接続部が
主接点ピンと抵抗体間の一箇所であり、しかもその接続
が嵌合による接続なので、従来に比べて製造時における
作業能率がよくなるという効果が得られる。[Effects of the Invention] As explained above, since the terminal pin of the present invention uses only one contact pin,
Material costs can be reduced. Further, since the connection portion is located at one location between the main contact pin and the resistor, and the connection is made by fitting, it is possible to obtain the effect that work efficiency during manufacturing is improved compared to the conventional method.
【００２９】また、本発明のターミナルピンの製造方法
は、接点ピンの筒状部と抵抗体との間に樹脂を充填する
際に、接点ピンの筒状部と抵抗体との間を確実に絶縁す
ることができるので、品質の高い溶着継手用のターミナ
ルピンを製造することができるという効果が得られる。Furthermore, in the terminal pin manufacturing method of the present invention, when filling the resin between the cylindrical portion of the contact pin and the resistor, the space between the cylindrical portion of the contact pin and the resistor is ensured. Since it can be insulated, it is possible to manufacture high-quality terminal pins for welded joints.
【図１】本発明実施例のターミナルピンを示す縦断面図
である。FIG. 1 is a longitudinal sectional view showing a terminal pin according to an embodiment of the present invention.
【図２】本発明実施例のターミナルピンの抵抗体を示す
全体図である。FIG. 2 is an overall view showing a resistor of a terminal pin according to an embodiment of the present invention.
【図３】（イ）（ロ）（ハ）はターミナルピンの変形例
を示す図である。FIGS. 3A, 3B, and 3C are diagrams showing modified examples of terminal pins.
【図４】本発明実施例のターミナルピンの製造に使用す
る金型を示す断面図である。FIG. 4 is a sectional view showing a mold used for manufacturing a terminal pin according to an embodiment of the present invention.
【図５】図４のＶ−Ｖ断面図である。FIG. 5 is a sectional view taken along the line V-V in FIG. 4;
【図６】本発明実施例のターミナルピンの製造に使用す
る金型を示す断面図である。FIG. 6 is a sectional view showing a mold used for manufacturing a terminal pin according to an embodiment of the present invention.
【図７】金型の変形例である。FIG. 7 is a modification of the mold.
【図８】金型のランナー構造の一例を示す斜視図である
。FIG. 8 is a perspective view showing an example of a runner structure of a mold.
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 (2)
部の内側に抵抗体が設けられ、前記接点ピンと抵抗体の
間を絶縁して樹脂が充填されている溶着継手用のターミ
ナルピンにおいて、前記抵抗体の上端部が外に露出し、
前記抵抗体の下端部が前記接点ピンの筒状部と嵌合によ
り接続されていることを特徴とする溶着継手用のターミ
ナルピン。1. A terminal for a welded joint, wherein a cylindrical part is formed on a contact pin, a resistor is provided inside the cylindrical part, and a resin is filled to insulate between the contact pin and the resistor. At the pin, the upper end of the resistor is exposed to the outside,
A terminal pin for a welded joint, wherein a lower end portion of the resistor is connected to a cylindrical portion of the contact pin by fitting.
抗体の下端部を嵌合させて接続した後、前記筒状部と抵
抗体との間隙に樹脂を充填することを特徴とする溶着継
手用のターミナルピンの製造方法。2. After the cylindrical part formed on the contact pin and the lower end of the resistor are fitted and connected, the gap between the cylindrical part and the resistor is filled with resin. A method of manufacturing terminal pins for welded joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3017599A JPH04258593A (en) | 1991-02-08 | 1991-02-08 | Terminal pin for weld joint and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3017599A JPH04258593A (en) | 1991-02-08 | 1991-02-08 | Terminal pin for weld joint and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04258593A true JPH04258593A (en) | 1992-09-14 |
Family
ID=11948352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3017599A Pending JPH04258593A (en) | 1991-02-08 | 1991-02-08 | Terminal pin for weld joint and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04258593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4532769B2 (en) * | 2001-03-23 | 2010-08-25 | 積水化学工業株式会社 | Manufacturing method of electrofusion joint |
-
1991
- 1991-02-08 JP JP3017599A patent/JPH04258593A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4532769B2 (en) * | 2001-03-23 | 2010-08-25 | 積水化学工業株式会社 | Manufacturing method of electrofusion joint |
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