JPH0735024U - Terminal pin - Google Patents
Terminal pinInfo
- Publication number
- JPH0735024U JPH0735024U JP6632193U JP6632193U JPH0735024U JP H0735024 U JPH0735024 U JP H0735024U JP 6632193 U JP6632193 U JP 6632193U JP 6632193 U JP6632193 U JP 6632193U JP H0735024 U JPH0735024 U JP H0735024U
- Authority
- JP
- Japan
- Prior art keywords
- heating wire
- terminal pin
- cylindrical body
- pin
- joint
- 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
- 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
- B29C66/71—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 composition of the plastics material of the parts to be joined
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Resistance Heating (AREA)
Abstract
(57)【要約】
【目的】 端子ピンをかしめて電熱線を接続したとき、
電熱線にノッチが発生したり、断線することがない端子
ピンを提供する。
【構成】 ピン本体１１の下部に電熱線２の端部が嵌挿
される接続孔１４を有する筒体１３を設け、該筒体１３
の下端部外周に突起１５を設ける。
【効果】 端子ピンに電熱線の端部を確実かつ強固に固
定できる。
(57) [Abstract] [Purpose] When caulking the terminal pins and connecting the heating wires,
Provided is a terminal pin that does not cause a notch in the heating wire or break. [Structure] A cylindrical body 13 having a connection hole 14 into which an end of a heating wire 2 is inserted is provided below a pin body 11, and the cylindrical body 13 is provided.
Protrusions 15 are provided on the outer periphery of the lower end of the. [Effect] The end of the heating wire can be securely and firmly fixed to the terminal pin.
Description
【０００１】[0001]
本考案は、電熱線の端部が接続される端子ピンに関する。 The present invention relates to a terminal pin to which an end of a heating wire is connected.
【０００２】[0002]
従来からポリエチレン、ポリブテン等の合成樹脂からなるガス管、給水管の接 続には、継手の融着面に電熱線を埋設してその端部に接続した端子ピンを継手の 外周面に突出させた電気融着継手が用いられている。 Conventionally, for connecting gas pipes and water supply pipes made of synthetic resin such as polyethylene and polybutene, heating wires were embedded in the fusion bonding surface of the joint and the terminal pins connected to the ends were projected on the outer peripheral surface of the joint. An electric fusion-bonded joint is used.
【０００３】[0003]
ところで、この従来の電気融着継手に用いられていた端子ピンは、端子ピンを かしめて電熱線を接続したとき、電熱線のかしめ部にノッチが発生することがあ った。即ち、図４に部分断面図で示した如く、端子ピン１ａの接続孔１４に電熱 線２の端部を嵌挿してから筒体１３をかしめ具３，３でかしめたとき、位置ずれ が発生して筒体１３の先端部をかしめてしまうことがあった。この場合、筒体１ ３の先端内面の角部１３０が電熱線２に食い込んでノッチが発生し、次にこの端 子ピン１ａ及び電熱線２を用いて電気融着継手を射出成形したとき、ノッチが発 生した部分で電熱線２が断線することがあった。 By the way, in the terminal pin used in this conventional electric fusion splicing joint, when the heating wire is connected by crimping the terminal pin, a notch may be generated in the crimped portion of the heating wire. That is, as shown in the partial sectional view of FIG. 4, when the end portion of the heating wire 2 is fitted into the connection hole 14 of the terminal pin 1a and then the tubular body 13 is caulked by the caulking tools 3 and 3, a positional deviation occurs. Then, the tip portion of the cylindrical body 13 may be caulked. In this case, the corner 130 of the inner surface of the tip of the cylindrical body 13 bites into the heating wire 2 to generate a notch, and when the terminal pin 1a and the heating wire 2 are used to injection-mold an electric fusion joint, The heating wire 2 was sometimes broken at the part where the notch was generated.
【０００４】 本考案はかかる課題を解決したものであって、端子ピンをかしめて電熱線を接 続したとき電熱線にノッチが発生したり、断線する危険性が全くない端子ピンを 提供するものである。The present invention has solved the above problems and provides a terminal pin that does not have a risk of notching or breaking of the heating wire when the heating wire is connected by crimping the terminal pin. Is.
【０００５】[0005]
本考案は、ピン本体の下部に電熱線の端部が嵌挿される接続孔を有する筒体を 設けると共に、該筒体の下端部外周に突起を設けたことを特徴とする。 The present invention is characterized in that a cylindrical body having a connection hole into which an end of a heating wire is inserted is provided in a lower portion of a pin body, and a projection is provided on an outer periphery of a lower end of the cylindrical body.
【０００６】[0006]
【作用】 上記の構成からなるので、電熱線の端部を接続孔に嵌挿してから筒体をかしめ たとき、かしめ位置が筒体の下端部外周に設けた突起によって規制されるため、 筒体の中間部がかしめられて電熱線が強固に固定される。With the above configuration, when the tubular body is crimped after the end portion of the heating wire is inserted into the connection hole, the crimping position is restricted by the protrusion provided on the outer periphery of the lower end portion of the tubular body. The heating wire is firmly fixed by crimping the middle part of the body.
【０００７】[0007]
以下、本考案の実施例を図面にて詳細に説明する。 図１は本考案の一実施例を示す端子ピンの部分断面図、図２は端子ピンに電熱線 を接続した状態の部分断面図、図３は電気融着継手の製造工程を断面図である。 図中符号１は銅、真鍮、砲金等からなる端子ピン、２はニクロム線等からなる電 熱線であって、該電熱線２の外周面はポリエチレン、ポリブテン等の合成樹脂で 被覆されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a partial cross-sectional view of a terminal pin showing an embodiment of the present invention, FIG. 2 is a partial cross-sectional view showing a state in which a heating wire is connected to the terminal pin, and FIG. . In the figure, reference numeral 1 is a terminal pin made of copper, brass, gun metal or the like, 2 is a heating wire made of nichrome wire, and the outer peripheral surface of the heating wire 2 is covered with a synthetic resin such as polyethylene or polybutene.
【０００８】 端子ピン１は、ピン本体１１の下端部外周にフランジ状の鍔１２を設けると共 に、該鍔１２の下部に筒体１３を設けたものである。筒体１３には電熱線２の線 径よりも若干大きい接続孔１４が設けられており、接続孔１４に電熱線２の端部 が嵌挿できるようになっている。また、筒体１３の下端部外周には環状の突起１ ５が設けられており、該突起１５によって筒体１３のかしめ位置が規制されて位 置ずれが生じないようになっている。In the terminal pin 1, a flange-shaped collar 12 is provided on the outer periphery of the lower end portion of the pin body 11, and a tubular body 13 is provided below the collar 12. The cylindrical body 13 is provided with a connection hole 14 that is slightly larger in diameter than the heating wire 2, and the end portion of the heating wire 2 can be inserted into the connection hole 14. Further, an annular projection 15 is provided on the outer periphery of the lower end portion of the tubular body 13, and the projection 15 restricts the caulking position of the tubular body 13 so that displacement does not occur.
【０００９】 この端子ピン１を用いて例えば両端にソケット受口を有する電気融着継手を製 造する場合、図３に示した如くコア４の外周面に電熱線２を巻回してからその両 端部に端子ピン１を接続する。このとき、電熱線２の端部を覆っている樹脂を剥 離してから端子ピン１の接続孔１４に嵌挿し、次いで図１に示した如くかしめ具 ３，３を図中の矢印方向に移動させる。すると、突起１５の上方位置で筒体１３ がかしめられ、図２に示した如く電熱線２の端部が端子ピン１に強固に固定され る。When manufacturing an electric fusion joint having socket sockets at both ends using the terminal pin 1, for example, as shown in FIG. 3, the heating wire 2 is wound around the outer peripheral surface of the core 4 and then the both ends are wound. Connect terminal pin 1 to the end. At this time, the resin covering the end of the heating wire 2 is peeled off and then inserted into the connection hole 14 of the terminal pin 1, and then the caulking tools 3, 3 are moved in the direction of the arrow in the figure as shown in FIG. Let Then, the cylindrical body 13 is crimped at a position above the projection 15, and the end portion of the heating wire 2 is firmly fixed to the terminal pin 1 as shown in FIG.
【００１０】 そこで、前記コア４を外型５内にセットすると共に、それぞれの端子ピン１に 装着した端子保持具６を外型５に固定してからキャビテイ内に溶融樹脂を射出す る。すると、継手の融着面に電熱線２が埋設され、該電熱線２の両端部に接続し た端子ピン１が継手の外周面に突出した電気融着継手が得られる。Therefore, the core 4 is set in the outer die 5, and the terminal holders 6 attached to the respective terminal pins 1 are fixed to the outer die 5, and then molten resin is injected into the cavity. Then, the electric heating wire 2 is embedded in the fusion-bonding surface of the joint, and the electric fusion-bonding joint in which the terminal pins 1 connected to both ends of the heating wire 2 are projected to the outer peripheral surface of the joint is obtained.
【００１１】 尚、前記実施例ではピン本体１１の下端部外周にフランジ状の鍔１２を設けた ものを例示したが、この鍔１２はなくてもよく、また筒体１３の下端部外周に設 けた環状の突起１５は断続した小突起であってもよい。更に、本考案の端子ピン １はソケット受口を有する電気融着継手のほかに、サドル継手、管端キャップ等 の各種の電気融着継手を製造する際に使用することができる。In the above embodiment, the flange body 12 is provided on the outer periphery of the lower end portion of the pin body 11, but the flange 12 may be omitted, and the flange body 12 may be provided on the outer periphery of the lower end portion of the cylindrical body 13. The ring-shaped projection 15 may be a small projection that is intermittent. Further, the terminal pin 1 of the present invention can be used for manufacturing various electric fusion joints such as saddle joints and pipe end caps, in addition to the electric fusion joint having a socket receptacle.
【００１２】[0012]
以上詳述した如く、本考案の端子ピンを用いると、かしめ位置が筒体の下端部 外周に設けた突起によって規制されるため、位置ずれすることなく電熱線の端部 を確実かつ強固に固定することができる。また、射出成形によって電気融着継手 を製造したとき、筒体の下端部外周に設けた突起が継手内に埋没するため、成形 時あるいは配管施工の際に端子ピンの抜け出しが確実に防止される。 As described above in detail, when the terminal pin of the present invention is used, the crimping position is regulated by the projection provided on the outer periphery of the lower end of the cylindrical body, so that the end of the heating wire is securely and firmly fixed without displacement. can do. Also, when an electric fusion splicing joint is manufactured by injection molding, the protrusions provided on the outer periphery of the lower end of the tubular body are buried in the joint, so that the terminal pin can be reliably prevented from slipping out during molding or piping work. .
【図１】図１は本考案の一実施例を示す端子ピンの部分
断面図である。FIG. 1 is a partial cross-sectional view of a terminal pin showing an embodiment of the present invention.
【図２】図２は端子ピンに電熱線を接続した状態の部分
断面図である。FIG. 2 is a partial cross-sectional view of a state in which a heating wire is connected to a terminal pin.
【図３】図３は電気融着継手の製造工程を断面図であ
る。FIG. 3 is a cross-sectional view of the manufacturing process of the electric fusion joint.
【図４】図４は従来の端子ピンに電熱線を接続した状態
を示す断面図ある。FIG. 4 is a cross-sectional view showing a state in which a heating wire is connected to a conventional terminal pin.
１ 端子ピン ２ 電熱線 ３ かしめ具 １１ ピン本体 １２ 鍔 １３ 筒体 １４ 接続孔 １５ 突起 DESCRIPTION OF SYMBOLS 1 Terminal pin 2 Heating wire 3 Caulking tool 11 Pin body 12 Collar 13 Cylindrical body 14 Connection hole 15 Protrusion
Claims (1)
の端部が嵌挿される接続孔（１４）を有する筒体（１
３）を設けると共に、該筒体（１３）の下端部外周に突
起（１５）を設けたことを特徴とする端子ピン。1. A heating wire (2) is provided below the pin body (11).
A cylindrical body (1) having a connection hole (14) into which the end of the
3) The terminal pin is characterized in that the projection (15) is provided on the outer periphery of the lower end portion of the cylindrical body (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6632193U JP2605063Y2 (en) | 1993-12-13 | 1993-12-13 | Terminal pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6632193U JP2605063Y2 (en) | 1993-12-13 | 1993-12-13 | Terminal pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0735024U true JPH0735024U (en) | 1995-06-27 |
| JP2605063Y2 JP2605063Y2 (en) | 2000-06-19 |
Family
ID=13312462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6632193U Expired - Fee Related JP2605063Y2 (en) | 1993-12-13 | 1993-12-13 | Terminal pin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2605063Y2 (en) |
-
1993
- 1993-12-13 JP JP6632193U patent/JP2605063Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2605063Y2 (en) | 2000-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |