JPH0731036Y2 - Welding joint - Google Patents

Welding joint

Info

Publication number
JPH0731036Y2
JPH0731036Y2 JP7386089U JP7386089U JPH0731036Y2 JP H0731036 Y2 JPH0731036 Y2 JP H0731036Y2 JP 7386089 U JP7386089 U JP 7386089U JP 7386089 U JP7386089 U JP 7386089U JP H0731036 Y2 JPH0731036 Y2 JP H0731036Y2
Authority
JP
Japan
Prior art keywords
thermoplastic resin
joint
conductive member
joint body
heating
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.)
Expired - Lifetime
Application number
JP7386089U
Other languages
Japanese (ja)
Other versions
JPH0312695U (en
Inventor
和正 石倉
良一 諫山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP7386089U priority Critical patent/JPH0731036Y2/en
Publication of JPH0312695U publication Critical patent/JPH0312695U/ja
Application granted granted Critical
Publication of JPH0731036Y2 publication Critical patent/JPH0731036Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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"
    • B29C65/3472—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 composition of the heated elements which remain in the joint
    • B29C65/3476—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 composition of the heated elements which remain in the joint being metallic
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は、熱可塑性樹脂管、例えばガス管や水道管等の
接合に用いられる溶着継手に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a welded joint used for joining thermoplastic resin pipes such as gas pipes and water pipes.

（従来の技術） 従来の溶着継手としては、例えば、実開昭63−185989号
公報に記載されているようなものが知られている。(Prior Art) As a conventional welding joint, for example, one described in Japanese Utility Model Laid-Open No. Sho 63-185989 is known.

この従来の溶着継手は、熱可塑性樹脂で形成された継手
本体の内周部に加熱要素としての電熱線が配設され、か
つ継手本体の外周から電熱線を断線させるように穴が形
成され、この穴の底部に設けられたハンダ合金によって
電熱線の断線部分が接続されていた。This conventional welding joint is provided with a heating wire as a heating element in the inner peripheral portion of the joint body formed of a thermoplastic resin, and a hole is formed so as to disconnect the heating wire from the outer periphery of the joint body, The broken portion of the heating wire was connected by the solder alloy provided at the bottom of this hole.

そして、この溶着継手を用いて熱可塑性樹脂管を接続す
るには、溶着継手の両開口端に熱可塑性樹脂管を挿入し
た後、電熱線に通電する。そうすると、電熱線の発熱に
よって継手本体の内周部と熱可塑性樹脂管の外周部とが
溶融し、溶着継手と熱可塑性樹脂管とが互いに溶着す
る。Then, in order to connect the thermoplastic resin pipes using this welding joint, after inserting the thermoplastic resin pipes into both open ends of the welding joint, the heating wire is energized. Then, the inner peripheral portion of the joint body and the outer peripheral portion of the thermoplastic resin pipe are melted by the heat generation of the heating wire, and the welded joint and the thermoplastic resin pipe are welded to each other.

この場合、溶融した熱可塑性樹脂の膨張によってハンダ
合金が穴の底部から押し上げられ、電熱線から外れるこ
とから、通電が遮断される。従って、通電時間や電圧、
溶着継手のサイズ等を考慮にいれることなく自動的に加
熱が停止され、過度な加熱を防止することができる。In this case, the expansion of the molten thermoplastic resin pushes up the solder alloy from the bottom of the hole and removes it from the heating wire. Therefore, the energizing time and voltage,
The heating is automatically stopped without taking the size of the welding joint into consideration, and excessive heating can be prevented.

（考案が解決しようとする課題） しかしながら、このような従来の溶着継手にあっては、
継手本体に対して穴を開け、この穴の底部にハンダ合金
をセットするという加工が必要となる。従って、その加
工に手間がかかり、現実的には製造が難しく、実用性に
乏しいという問題があった。(Problems to be solved by the invention) However, in such a conventional welding joint,
It is necessary to make a hole in the joint body and set a solder alloy at the bottom of this hole. Therefore, there is a problem that the processing is troublesome, the manufacturing is difficult in reality, and the practicality is poor.

本考案は、上述のような従来の問題が着目してなされた
もので、溶着継手と熱可塑性樹脂管とが溶着した後の二
度加熱を防止でき、しかもそのための加工が容易で実用
的な溶着継手を提供することを目的としている。The present invention has been made by paying attention to the conventional problems as described above, and can prevent double heating after the welding joint and the thermoplastic resin pipe have been welded, and the processing for that is easy and practical. It is intended to provide a welded joint.

（課題を解決するための手段） 上記目的を達成するために、本考案の溶着継手は、熱可
塑性樹脂で形成された継手本体の内周部に加熱要素が配
設され、該加熱要素の両端が端子に接続されている溶着
継手において、前記端子内部には加熱要素の端部が接続
される導電部材が設けられ、該導電部材には断線部が形
成され、該断線部は所定の温度で溶融する低融点合金に
より接続され、かつ端子内部には前記低融点合金溶融時
の収容空間が形成されているものである。(Means for Solving the Problems) In order to achieve the above-mentioned object, the welding joint of the present invention has a heating element arranged at an inner peripheral portion of a joint body formed of a thermoplastic resin, and both ends of the heating element are arranged. In the welding joint in which is connected to the terminal, a conductive member to which the end of the heating element is connected is provided inside the terminal, and a disconnection portion is formed in the conductive member, and the disconnection portion has a predetermined temperature. They are connected by a low melting point alloy that melts, and a housing space for melting the low melting point alloy is formed inside the terminal.

（作用） 本考案の溶着継手に熱可塑性樹脂管を溶着する際には、
溶着継手の継手本体内に熱可塑性樹脂管を挿入し、端子
間に電圧をかけて通電する。そうすると、加熱要素の発
熱によって継手本体の内周部と熱可塑性樹脂管の外周部
が加熱されて溶融し、継手本体と熱可塑性樹脂管とが互
いに溶着する。(Operation) When welding the thermoplastic resin pipe to the welding joint of the present invention,
Insert a thermoplastic resin tube into the joint body of the welded joint and apply a voltage between the terminals to energize it. Then, the inner peripheral portion of the joint body and the outer peripheral portion of the thermoplastic resin pipe are heated and melted by the heat generated by the heating element, and the joint body and the thermoplastic resin pipe are welded to each other.

そして、上述のようにして溶着が行われた後、あるいは
溶着が完了する前の段階で、低融点合金（例えばハンダ
合金）が溶融する所定の温度まで加熱すると、導電部材
の断線部を接続しているハンダ合金が溶融して収容空間
に流れ落ち、導電部材は断線状態になる。従って、以後
は加熱要素に通電することができない状態になり、二度
加熱という事故を防止できる。When the low melting point alloy (for example, solder alloy) is heated to a predetermined temperature after the welding is performed as described above or before the welding is completed, the disconnection portion of the conductive member is connected. The solder alloy is melted and flows down into the accommodation space, and the conductive member is disconnected. Therefore, after that, the heating element cannot be energized, and the double heating can be prevented.

（実施例） 以下、本考案の実施例を図面により詳述する。Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

まず、第１図〜第３図に基づいて実施例の構成を説明す
る。First, the configuration of the embodiment will be described with reference to FIGS.

尚、実施例を説明するにあたり、継手としてソケットＡ
を例にとって説明する。In describing the embodiment, the socket A is used as a joint.
Will be described as an example.

本実施例のソケットＡは、ポリエチレン樹脂等の熱可塑
性樹脂を素材として例えば射出成形によって形成されて
いる。そして、第１図に示すように、円筒状に形成され
た継手本体１と、該継手本体１の両端外周部から突設さ
れた一対のボス2,2とを備えている。尚、前記ボス２
は、継手本体１と同時に一体成形してもよいし、予め別
体成形しておき、継手本体１を成形する際にインサート
して一体化してもよい。The socket A of this embodiment is formed by injection molding using a thermoplastic resin such as polyethylene resin as a material. As shown in FIG. 1, the joint body 1 is formed in a cylindrical shape, and a pair of bosses 2, 2 projecting from outer peripheral portions of both ends of the joint body 1. Incidentally, the boss 2
May be integrally molded at the same time as the joint body 1, or may be separately molded in advance and then inserted and integrated when the joint body 1 is molded.

前記継手本体１の内周面の軸方向略中央には、開口端1
0,10から挿入される熱可塑性樹脂管P,Pの挿入位置を規
制するための突起11が形成されている。また、この継手
本体１の内周部には、加熱要素としての電熱線（ニクロ
ム線等）３が継手本体１の軸芯を中心として螺旋状に埋
設され、かつ該電熱線３の両端には、前記ボス2,2内に
インサートされた端子4,4が接続されている。At the center of the inner peripheral surface of the joint body 1 in the axial direction, the opening end 1
Protrusions 11 are formed to regulate the insertion positions of the thermoplastic resin pipes P, P inserted from 0 and 10. A heating wire (nichrome wire or the like) 3 as a heating element is embedded in the inner peripheral portion of the joint body 1 in a spiral shape around the axis of the joint body 1, and both ends of the heating wire 3 are provided. The terminals 4, 4 inserted in the bosses 2, 2 are connected.

前記端子４は、第２図及び第３図に示すように、内部が
空洞40に形成された端子本体41を備え、該端子本体41は
絶縁体による下筒41aと導電体による上筒41bが上下に嵌
合して構成されている。また、空洞40の内部には、断線
部43を有する導電部材42が設けられている。As shown in FIGS. 2 and 3, the terminal 4 includes a terminal body 41 having a cavity 40 formed therein. The terminal body 41 includes a lower cylinder 41a made of an insulator and an upper cylinder 41b made of a conductor. It is configured to fit vertically. Further, inside the cavity 40, a conductive member 42 having a disconnection portion 43 is provided.

この導電部材42は、下筒41aの底部411を貫通して空洞40
内に延出した下側導電部材42aと、上筒41bの上部412か
ら突設された上側導電部材42bとから成り、前記下側導
電部材42aと上側導電部材42bとは断線部43となる空隙を
保持して対向して設けられている。そして、下側導電部
材42aの下端に前記電熱線３の端部が接続されている。The conductive member 42 penetrates the bottom portion 411 of the lower cylinder 41a and cavities 40.
A lower conductive member 42a extending inward, and an upper conductive member 42b protruding from the upper portion 412 of the upper cylinder 41b. The lower conductive member 42a and the upper conductive member 42b form a disconnection portion 43. Are provided so as to face each other. The end of the heating wire 3 is connected to the lower end of the lower conductive member 42a.

また、前記断線部43を含めて空洞40の上部には低融点合
金、例えばハンダ合金５が充填されており、下側導電部
材42aと上側導電部材42bとは、このハンダ合金５を介し
て接続されている。また、前記空洞40の下部は、前記ハ
ンダ合金５が溶融した際の収容空間６として形成され、
この収容空間６の体積は、ハンダ合金５の体積よりも大
きく形成されている。尚、前記ハンダ合金５は、継手本
体１と熱可塑性樹脂管P,Pと溶着に必要な加熱温度より
も少し高い温度で溶融するものを用いる。即ち、継手本
体１及び熱可塑性樹脂管P,Pは、素材となる熱可塑性樹
脂の種類によって溶融温度が異なるので、その種類に応
じたハンダ合金５を用いるようにする。例えば、ポリプ
ロピレン樹脂，ポリブデン樹脂，ポリエチレ樹脂の場合
には、300〜400℃前後で溶融するものを、また、硬質塩
化ビニル樹脂の場合には200〜300℃で溶融するものが望
ましい。A low melting point alloy, for example, a solder alloy 5 is filled in the upper portion of the cavity 40 including the disconnection portion 43, and the lower conductive member 42a and the upper conductive member 42b are connected via this solder alloy 5. Has been done. Further, the lower portion of the cavity 40 is formed as a storage space 6 when the solder alloy 5 is melted,
The volume of the accommodation space 6 is larger than that of the solder alloy 5. The solder alloy 5 used is one that melts at a temperature slightly higher than the heating temperature required for welding the joint body 1 and the thermoplastic resin pipes P, P. That is, since the joint body 1 and the thermoplastic resin pipes P, P have different melting temperatures depending on the type of the thermoplastic resin used as a raw material, the solder alloy 5 corresponding to the type is used. For example, in the case of polypropylene resin, polybutene resin, and polyethylene resin, those that melt at around 300 to 400 ° C are preferable, and in the case of hard vinyl chloride resin, those that melt at 200 to 300 ° C are desirable.

また、端子４を製作する場合、まず、上筒41bを上下に
反転してその内部にハンダ合金５を流し込み、次に下側
導電部材42aをセットした下筒41を上筒41bに嵌合圧入
し、最後に下側導電部材42aの下端に電熱線３をカシメ
により連結することになる。When the terminal 4 is manufactured, first, the upper cylinder 41b is turned upside down, the solder alloy 5 is poured into the upper cylinder 41b, and then the lower cylinder 41 having the lower conductive member 42a set therein is fitted and press-fitted into the upper cylinder 41b. Then, finally, the heating wire 3 is connected to the lower end of the lower conductive member 42a by caulking.

更に、加熱要素としては、例えば多数の細い長尺の電熱
線（ニクロム線、炭素繊維など）が束ねられた加熱抵抗
線であってもよいし、また長さが10〜200mmのニクロム
線や炭素繊維等が導電性繊維シート状に抄造されたもの
であってもよい。Further, the heating element may be, for example, a heating resistance wire in which a large number of thin long heating wires (nichrome wire, carbon fiber, etc.) are bundled, or a nichrome wire or carbon wire having a length of 10 to 200 mm. The fibers and the like may be formed into a conductive fiber sheet.

次に、実施例の作用を説明する。Next, the operation of the embodiment will be described.

ソケットＡに熱可塑性樹脂管P,Pを溶着する場合、ま
ず、両熱可塑性樹脂管P,Pを突起11により規制されるま
で両開口端10,10から継手本体１内に挿入する。When the thermoplastic resin pipes P, P are welded to the socket A, first, the both thermoplastic resin pipes P, P are inserted into the joint body 1 from both open ends 10, 10 until they are regulated by the protrusion 11.

次に、端子4,4の上筒41b,41bにコントローラのコネクタ
（図示省略）を嵌め込んで端子4,4間に一定電圧をかけ
て通電させ、電熱線３を発熱させる。そうすると、その
熱で継手本体１の内周部及び熱可塑性樹脂管P,Pの外周
部が加熱溶融し、継手本体１と熱可塑性樹脂管P,Pとが
溶着する。Next, a connector (not shown) of the controller is fitted into the upper cylinders 41b, 41b of the terminals 4, 4 and a constant voltage is applied between the terminals 4, 4 to energize them to heat the heating wire 3. Then, the heat heats and melts the inner peripheral portion of the joint body 1 and the outer peripheral portions of the thermoplastic resin pipes P, P, and the joint body 1 and the thermoplastic resin pipes P, P are welded.

そして、上述のようにして継手本体Ｐと熱可塑性樹脂管
P,Pとの溶着が完了した後、引き続いて、ハンダ合金５
が溶融する温度まで、これまでよりも少し高めの電流を
短時間通電して加熱する。そうすると、溶融したハンダ
合金５は、第２図に示すように断線部43を含む空洞40の
上部にある状態から、第３図に示すように収容空間６に
流れ落ちる。この結果、導電部材42は断線状態になり、
電熱線３による加熱は停止され、以後、導電線３に通電
することができない状態になる。尚、ハンダ合金５を溶
融させて導電部材42を断線状態にするためには、継手本
体１と熱可塑性樹脂管P,Pとの溶着が完了する前の段階
で、電圧を上げて高電流を短時間通電させるようにする
こともできる。Then, as described above, the joint body P and the thermoplastic resin pipe are
After welding with P and P is completed, continue to solder alloy 5
It is heated to a temperature at which is melted by applying a slightly higher current than before for a short time. Then, the melted solder alloy 5 flows down from the state above the cavity 40 including the disconnection portion 43 as shown in FIG. 2 into the accommodation space 6 as shown in FIG. As a result, the conductive member 42 is disconnected,
The heating by the heating wire 3 is stopped, and thereafter, the conductive wire 3 cannot be energized. In order to melt the solder alloy 5 and disconnect the conductive member 42, the voltage is increased to increase the high current before the welding of the joint body 1 and the thermoplastic resin pipes P, P is completed. It is also possible to energize for a short time.

このように、本実施例のソケットＡを用いると、継手本
体１と熱可塑性樹脂管P,Pとを過度に加熱することな
く、適切な溶融状態で溶着することができるし、また、
二度加熱するといった事故を防止することもできる。As described above, when the socket A of the present embodiment is used, the joint body 1 and the thermoplastic resin pipes P, P can be welded in an appropriate molten state without excessive heating, and
It is also possible to prevent accidents such as heating twice.

以上、本考案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考案
の要旨を逸脱しない範囲の設計変更等があっても本考案
に含まれる。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 even if there is a design change or the like within the scope not departing from the gist of the present invention, it is included in the present invention. Be done.

例えば、実施例では、ソケットに適用した例を示した
が、他の分岐サドル，エルボ，チーズ，レジューサ等に
適用してもよい。For example, in the embodiment, the example applied to the socket is shown, but it may be applied to other branch saddles, elbows, cheeses, reducers and the like.

（考案の効果） 以上説明してきたように、本考案の溶着継手にあって
は、継手本体と熱可塑性樹脂管の過度な溶融を防止し
て、適切な溶融状態において互いに溶着することができ
るし、また、二度加熱といった事故も防止できるという
効果が得られる。(Effects of the Invention) As described above, in the welded joint of the present invention, it is possible to prevent the joint body and the thermoplastic resin pipe from being excessively melted and weld them to each other in an appropriate molten state. Moreover, the effect of preventing an accident such as double heating can be obtained.

また、本考案では、低融点合金の組付加工が継手本体に
対してではなく、端子に施されているので、現実的に製
造が容易となり、実用的な溶着継手を得ることができ
る。Further, in the present invention, since the assembly process of the low melting point alloy is performed not on the joint body but on the terminal, the manufacturing is practically facilitated and a practical welded joint can be obtained.

【図面の簡単な説明】[Brief description of drawings]

第１図は本考案実施例のソケットを示す部分断面図、第
２図は及び第３図は前記ソケットの端子を示す断面図で
ある。 Ａ…ソケット（溶着継手） １…継手本体 ３…電熱線（加熱要素） ４…端子 42…導電部材 43…断線部 ５…ハンダ合金 ６…収容空間FIG. 1 is a partial sectional view showing a socket according to an embodiment of the present invention, and FIGS. 2 and 3 are sectional views showing terminals of the socket. A ... Socket (welding joint) 1 ... Joint body 3 ... Heating wire (heating element) 4 ... Terminal 42 ... Conductive member 43 ... Disconnection part 5 ... Solder alloy 6 ... Storage space

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】熱可塑性樹脂で形成された継手本体の内周
部に加熱要素が配設され、該加熱要素の両端が端子に接
続されている溶着継手において、前記端子内部には加熱
要素の端部が接続される導電部材が設けられ、該導電部
材には断線部が形成され、該断線部は所定の温度で溶融
する低融点合金により接続され、かつ端子内部には前記
低融点合金溶融時の収容空間が形成されていることを特
徴とする溶着継手。1. A welding joint in which a heating element is disposed on an inner peripheral portion of a joint body formed of a thermoplastic resin, and both ends of the heating element are connected to terminals, and the heating element is provided inside the terminal. A conductive member having end portions connected thereto is provided, and a disconnection portion is formed in the conductive member, the disconnection portion is connected by a low melting point alloy that melts at a predetermined temperature, and the low melting point alloy melts inside the terminal. A welded joint characterized in that a storage space for the occasion is formed.
JP7386089U 1989-06-23 1989-06-23 Welding joint Expired - Lifetime JPH0731036Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7386089U JPH0731036Y2 (en) 1989-06-23 1989-06-23 Welding joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7386089U JPH0731036Y2 (en) 1989-06-23 1989-06-23 Welding joint

Publications (2)

Publication Number Publication Date
JPH0312695U JPH0312695U (en) 1991-02-08
JPH0731036Y2 true JPH0731036Y2 (en) 1995-07-19

Family

ID=31613041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7386089U Expired - Lifetime JPH0731036Y2 (en) 1989-06-23 1989-06-23 Welding joint

Country Status (1)

Country Link
JP (1) JPH0731036Y2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48103271U (en) * 1972-03-07 1973-12-03
JPS5251263U (en) * 1975-10-04 1977-04-12
JPS531464U (en) * 1976-06-21 1978-01-09
JPS54179879U (en) * 1978-06-01 1979-12-19
JPS5567714U (en) * 1978-11-01 1980-05-09
JPS55148712U (en) * 1979-04-13 1980-10-25
JPS56132948A (en) * 1980-03-24 1981-10-17 Jiyamuko Kk Toothpick with cleaning gut
JPS5767715U (en) * 1980-10-08 1982-04-23
JPS63154016U (en) * 1987-03-31 1988-10-11
CN106247064A (en) * 2016-10-31 2016-12-21 天津鹰麟节能科技发展有限公司 A kind of Fuse Type electric heating melts pipe fitting

Also Published As

Publication number Publication date
JPH0312695U (en) 1991-02-08

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