JPH03194293A - Pipe positioning tool - Google Patents
Pipe positioning toolInfo
- Publication number
- JPH03194293A JPH03194293A JP1333486A JP33348689A JPH03194293A JP H03194293 A JPH03194293 A JP H03194293A JP 1333486 A JP1333486 A JP 1333486A JP 33348689 A JP33348689 A JP 33348689A JP H03194293 A JPH03194293 A JP H03194293A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- pipe
- thermoplastic resin
- welding
- contact
- 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
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 13
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 101150037263 PIP2 gene Proteins 0.000 description 1
- 101100262439 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) UBA2 gene Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000008646 thermal stress Effects 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"
- B29C65/3404—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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
-
- 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"
- B29C65/3468—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
- 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
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
【発明の詳細な説明】
（産業上の利用分野）
本発明は管位置決め具に関し、特に、溶着継手と、この
継手の両端受口部に挿入された２木の熱可塑性樹脂管と
を、それぞれの軸芯が同一直線上に位置するように位置
決め固定するのに利用される。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pipe positioning tool, and in particular, a welded joint and two thermoplastic resin pipes inserted into sockets at both ends of the joint. It is used to position and fix the shafts so that their axes are on the same straight line.
（従来の技術）
熱可塑性樹脂管同士を接続する際、受口部内周面に加熱
要素としての電熱線が埋め込まれた熱可塑性樹脂製溶着
継手を用い、この継手の受口部に前記管の端部を挿入し
た状態で前記電熱線に通電して発熱させ、これによって
受口部内周面及び管端部の外周面を溶融させて両管を接
続する技術が知られている。(Prior art) When connecting thermoplastic resin pipes, a thermoplastic resin welded joint in which a heating wire as a heating element is embedded in the inner peripheral surface of the socket part is used, and the socket part of the joint is connected to the pipe. A known technique is to connect the two tubes by applying electricity to the heating wire to generate heat with the end inserted, thereby melting the inner circumferential surface of the socket and the outer circumferential surface of the tube end.
ところで、このような接続方法においては、管と継手と
は、接続部分の全周面において均一な融着が行われるよ
うに、前記通電後一定の融着強度が生起されるまでの間
、互いの軸芯がずれないよう熱応力や熱変形に抗して強
固に位置決め固定しておく必要がある。By the way, in such a connection method, the pipe and the joint are held together until a certain level of fusion strength is generated after the energization, so that uniform fusion is achieved over the entire circumference of the connection part. It is necessary to firmly position and fix the shaft against thermal stress and thermal deformation so that the axis does not shift.
このようなことから、従来、例えば特開昭６２６２０７
４号公報にみられるような管位置決め装置が提案されて
いる。For this reason, conventionally, for example, Japanese Patent Application Laid-Open No. 626207
A tube positioning device as seen in Publication No. 4 has been proposed.
」１記装置は、少なくとも１本のバーと、管径に対応し
て異なる曲率の扇形切欠部を縁部に有するとともに前記
バー上を摺動可能となされた支持プレートとで構成され
、前記扇形切欠部に当てかった管をベルトにより支持プ
レートに固定するようにしたものである。1. The device is composed of at least one bar and a support plate having a fan-shaped notch at the edge with a different curvature corresponding to the pipe diameter and capable of sliding on the bar, The tube placed in the notch is fixed to the support plate using a belt.
（発明が解決しようとする課題）
しかしながら、上記した管位置決め装置は、あくまで管
の位置決め固定を図っているだけであり、継手までも位
置決め固定しようとするものではないため、管を相互の
軸芯が一致するように位置決め固定することはできても
、継手と管とを、相互の軸芯が一致するように位置決め
固定することができない。このため、管の全周にわたっ
て均一な溶着が行われないといった問題があった。そし
て、このように均一な溶着が行われていないと、溶着後
、管に外力が加わった場合に、管が継手の受口部分を中
心にして揺動することがあり、これが原因で管に亀裂が
生してそこから管内を流れる例えばガスや流体が漏れる
といった問題があった。(Problem to be Solved by the Invention) However, the above-mentioned pipe positioning device only aims at positioning and fixing the pipe, and does not attempt to position and fix the joint. Although it is possible to position and fix the joint and the pipe so that their axes match, it is not possible to position and fix the joint and the pipe so that their axes match. For this reason, there was a problem in that uniform welding was not performed over the entire circumference of the tube. If welding is not done uniformly in this way, if an external force is applied to the pipe after welding, the pipe may swing around the socket of the joint, which may cause the pipe to sway. There was a problem in that cracks formed and, for example, gas or fluid flowing inside the pipe leaked through the cracks.
また、それとともに、管の固定をベルトにより行うもの
であるため、取り扱いがきわめて面倒であるといった問
題もあった。In addition, since the tube is fixed using a belt, there is also the problem that handling is extremely troublesome.
本発明は、上記した問題点に鑑みなされたもので、継手
と、この継手の受口部に挿入された２木の管とを、溶着
の前後を通じてそれぞれの軸芯が同一直線上に位置する
ように位置決め固定することのできる管位置決め具を提
供しようとするものである。The present invention has been made in view of the above-mentioned problems, and the axes of a joint and two wooden pipes inserted into the socket of the joint are located on the same straight line before and after welding. It is an object of the present invention to provide a tube positioning tool that can be positioned and fixed in this manner.
（課題を解決するための手段）
上記目的を達成するため、本発明に係る管位置決め具は
、熱可塑性樹脂により筒状に形成され、両端部が受口部
となされるとともに、これら受口部の内周部に加熱要素
が埋め込まれた溶着継手と、この溶着継手の受口部に挿
入された熱可塑性樹脂管とを、それぞれの軸芯が一致す
るように位置決め固定するのに使用されるものであって
、一対の半割部材から構成され、各半割部材は、前記溶
着継手の端部外周面と当接する継手当接部と、この継手
当接部と連設部を介して設けられ前記熱可塑性樹脂管の
外周面と当接する複数本の前当接片とを有するものであ
る。(Means for Solving the Problems) In order to achieve the above object, a pipe positioning tool according to the present invention is formed of a thermoplastic resin into a cylindrical shape, with both ends serving as sockets. It is used to position and fix a welded joint with a heating element embedded in the inner circumference of the welded joint and a thermoplastic resin pipe inserted into the socket of this welded joint so that their respective axes coincide. It is composed of a pair of half members, each half member having a joint contact portion that contacts the outer circumferential surface of the end of the welded joint, and a joint contact portion and a connecting portion provided therebetween. The thermoplastic resin tube has a plurality of front contact pieces that come into contact with the outer circumferential surface of the thermoplastic resin pipe.
（作用）
本発明の管位置決め具を用いて溶着継手と熱可塑性樹脂
管とを位置決め固定し、両者を溶着するには、まず、溶
着継手の各受口部内に熱可塑性樹脂管を挿入してから、
管位置決め具の半割部材を溶着継手の端部と管とを挾む
ようにして合わせる。(Function) To position and fix a welded joint and a thermoplastic resin pipe using the pipe positioning tool of the present invention and weld them together, first insert the thermoplastic resin pipe into each socket of the welded joint. from,
Place the half member of the pipe positioning tool between the end of the welded joint and the pipe.
すなわち、各半割部材の継手当接部を溶着継手の端部外
周面に当接させるとともに、連設部の内側面を溶着継手
の端面に当接させる。これで、各半割部材の前当接片が
熱可塑性樹脂管の外周面に沿う状態となる。That is, the joint abutting portion of each half member is brought into contact with the outer peripheral surface of the end of the welded joint, and the inner surface of the continuous portion is brought into contact with the end surface of the welded joint. The front contact piece of each half member is now in a state along the outer circumferential surface of the thermoplastic resin pipe.
次に、両方の半割部材の前当接片を、クランプ等の既存
の締め付は具を用いて締め付ける。これによって、管は
締め付は具により前当接片を介して締め付けられること
になるが、このとき、管の軸芯が溶着継手の軸芯からず
れていると、各前当接片に加わる力が不均一になる。す
ると、各前当接片は、その形態が片体であることから弾
性復元力を発揮し、上記力が均一になるように初期の位
置に復帰しようとする。その結果、管はその軸芯が溶着
継手の軸芯に一致する位置に移動され、芯出しが行われ
る。Next, the front contact pieces of both half members are tightened using an existing tightening tool such as a clamp. As a result, the pipe is tightened by the tool through the front abutment pieces, but at this time, if the axis of the pipe is offset from the axis of the welded joint, the force will be applied to each front abutment piece. The force becomes uneven. Then, since each front abutment piece is a single piece, it exerts an elastic restoring force and tries to return to its initial position so that the force becomes uniform. As a result, the tube is moved to a position where its axis coincides with the axis of the welded joint, and centering is performed.
」二連のようにして溶着継手と熱可塑性樹脂管とが芯出
しされた状態に位置決め固定されると、受口部の内周面
と熱可塑性樹脂管の外周面との間のクリアランスが一定
となるので、この後、通電により加熱要素を発熱させれ
ば、受口部の内周部と熱可塑性樹脂管の外周部とが均一
に溶融し、互いに良好な状態で溶着される。” When the welded joint and thermoplastic resin pipe are positioned and fixed in a centered state in a double series, the clearance between the inner peripheral surface of the socket and the outer peripheral surface of the thermoplastic resin pipe is constant. Therefore, if the heating element is then energized to generate heat, the inner periphery of the socket and the outer periphery of the thermoplastic resin pipe will be uniformly melted and welded to each other in a good condition.
（実施例） 以下、本発明の一実施例を、図面を参照して説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は本発明に係る管位置決め具を示す正面図、第２
図は第１図におけるｎ−ｎ線に沿う部分断面側面図であ
る。FIG. 1 is a front view showing a pipe positioning tool according to the present invention, and FIG.
The figure is a partial cross-sectional side view taken along line nn in FIG. 1.
この管位置決め具１は、一対の半割部材１１１２から構
成されたものである。This tube positioning tool 1 is composed of a pair of half members 1112.
上記各半割部材１１．１２は、溶着継手Ｊ（第３図及び
第４図参照）の端部外周面と当接する継手当接部１３，
１．４と、この継手当接部］、３．１４と連設部１５．
１６を介して設けられ熱可塑性樹脂管Ｐ１．．Ｐ２の外
周面と当接する複数本の前当接片１７・・・、】８・・
・とを有するものである。Each of the above-mentioned half members 11.12 has a joint abutting portion 13, which comes into contact with the outer peripheral surface of the end of the welded joint J (see FIGS. 3 and 4).
1.4 and this joint abutment part], 3.14 and the connecting part 15.
16 and a thermoplastic resin pipe P1. ．． A plurality of front contact pieces 17 that come into contact with the outer peripheral surface of P2...,]8...
・It has the following.
このようになる半割部材１１．１２は、合成樹脂又は金
属から形成されている。The half members 11, 12 are made of synthetic resin or metal.
前記連設部１５．１６は、その内周面１５１゜１６１が
熱可塑性樹脂管Ｐ１．．Ｐ２の外周面と略接するように
なされており、前記前当接片１７・・１８・・・ば、そ
の内面がこれら連設部１．５．１．６の内周面１５１．
．１６１と面一となるように設けられている。The continuous portion 15.16 has an inner circumferential surface 151°161 formed of a thermoplastic resin pipe P1. ．． The front abutting pieces 17, . . . , 18, .
．． 161 so as to be flush with it.
前当接片１７・・・、１訃・・は、図示例ではそれぞれ
３木ずつ等間隔で同一円周上に配されているが、これに
限るものではない。In the illustrated example, the front abutment pieces 17..., 1 end... are each arranged in three pieces at equal intervals on the same circumference, but the present invention is not limited to this.
次に、上記のようになる管位置決め具１を用いて溶着継
手、Ｊと熱可塑性樹脂管ＰＩ、Ｐ２とを位置決め固定し
、両者を溶着する手順について説明する。Next, a procedure for positioning and fixing the welding joint J and the thermoplastic resin pipes PI and P2 using the pipe positioning tool 1 as described above and welding them together will be described.
まず、溶着継手Ｊの各受ロ部Ｓ、Ｓ内に熱可塑性樹脂管
ＰＩ、Ｐ２を挿入してから、管位置決め具１，１の半割
部材１．１．１２を溶着継手、Ｊの端部と管ＰＩ、Ｐ２
とをそれぞれ挟むようにして合わせる。First, insert the thermoplastic resin pipes PI and P2 into the receiving holes S and S of the welding joint J, and then insert the half members 1.1.12 of the pipe positioning tools 1 and 1 into the welding joint and the end of J. Department and pipe PI, P2
Put them together so that they are sandwiched between each other.
すなわち、半割部材１１．１２の継手当接部１３１４を
溶着継手Ｊの端部外周面に当接させるとともに、連設部
１５．１６の内側面を溶着継手Ｊの端面に当接させる。That is, the joint contact portion 1314 of the half member 11.12 is brought into contact with the outer peripheral surface of the end of the welded joint J, and the inner surface of the continuous portion 15.16 is brought into contact with the end surface of the welded joint J.
これで、各半割部材１１．１２の前当接片１７・・・、
Ｉ８・・・が熱可塑性樹脂管ＰＩＰ２の外周面に沿う状
態となる。Now, the front contact piece 17 of each half member 11, 12...,
I8... is in a state along the outer peripheral surface of the thermoplastic resin pipe PIP2.
次に、第３図及び第４図に示すように、両方の半割部材
１１．１２の前当接片１７・・・、１８・・・を、クラ
ンプ等の既存の締め付は具Ｃを用いて締め付ける。これ
によって、管ＰＬ、Ｐ２は締め付は具Ｃにより前当接片
１７・・・、１８・・・を介して締め付けられることと
なるが、このとき、管Ｐ１．Ｐ２の軸芯が溶着継手Ｊの
軸芯からずれていると、各前当接片１７・・・、１８・
・・に加わる力が不均一になる。すると、各前当接片１
７・・・、１８・・・は、その形態が片体であることか
ら弾性復元力を発揮し、」二記力が均一になるように初
期の位置に復帰しようとする。その結果、管ＰＩ、Ｐ２
はその軸芯が溶着継手Ｊの軸芯に一致する位置に移動さ
れ、芯出しが行われる。Next, as shown in FIGS. 3 and 4, the front contact pieces 17..., 18... of both half members 11, 12 are tightened using an existing tightening tool C such as a clamp. Use to tighten. As a result, the pipes PL and P2 are tightened by the tool C via the front contact pieces 17..., 18..., but at this time, the pipes P1. If the axis of P2 is deviated from the axis of weld joint J, each front contact piece 17..., 18...
The force applied to... becomes uneven. Then, each front contact piece 1
7..., 18... exert an elastic restoring force because they are single-piece, and try to return to their initial positions so that the force is uniform. As a result, tube PI, P2
is moved to a position where its axis coincides with the axis of the welded joint J, and centering is performed.
上述のようにして溶着継手Ｊと熱可塑性樹脂管ＰＩ、Ｐ
２とが芯出しされた状態に位置決め固定されると、受口
部Ｓ、Ｓの内周面と熱可塑性樹脂管Ｐ］、、Ｐ２の外周
面との間のクリアランスが一定となるので、この後、溶
着継手Ｊの加熱要素Ｈを通電により発熱させれば、受口
部Ｓ、Ｓの内周部と熱可塑性樹脂管Ｐ１．．Ｐ２の外周
部とが均一に溶融し、互いに良好な状態で溶着される。As described above, weld joint J and thermoplastic resin pipes PI, P
2 are positioned and fixed in a centered state, the clearance between the inner circumferential surfaces of the sockets S, S and the outer circumferential surfaces of the thermoplastic resin pipes P], P2 becomes constant. After that, when the heating element H of the welded joint J is energized to generate heat, the inner circumference of the socket S, S and the thermoplastic resin pipe P1. ．． The outer peripheral portion of P2 is uniformly melted and welded to each other in good condition.
図中の符号Ｂはボス、Ｔはこのボス部内に設けられた端
子をそれぞれ示している。Reference numeral B in the figure indicates a boss, and T indicates a terminal provided within this boss portion.
なお、前当接片１７・・・、１８・・・は、上記実施例
では３木ずつ等間隔で設けられているが、これに限らず
、例えば第５図に示すように、スリット状の隙間１９・
・・を介して連なるように設けられていてもよい。また
、前当接片１７・・・、１８・・・は、第６図に示すよ
うに、連設部１５（１６）の前後に突出するように設け
られていてもよい。Although the front abutment pieces 17..., 18... are provided at equal intervals of three pieces in the above embodiment, they are not limited to this. For example, as shown in FIG. Gap 19・
They may be provided so as to be connected via... Further, the front contact pieces 17..., 18... may be provided so as to protrude from the front and rear of the continuous portion 15 (16), as shown in FIG.
また、前記継手当接部１３．１４も、第５図及び第６図
に示すように、スリット１３１ （１４１）が設けら
れていてもよい。この場合、スリット１３１ （１４１
）によって継手当接部１３，１４に弾性が付与されるの
で、溶着継手Ｊの成形上の寸法誤差を吸収することがで
きる。Further, the joint contact portions 13.14 may also be provided with slits 131 (141), as shown in FIGS. 5 and 6. In this case, slit 131 (141
) imparts elasticity to the joint abutting portions 13, 14, so that dimensional errors in forming the welded joint J can be absorbed.
（発明の効果）
以上説明したように、本発明の位置決め具は、溶着継手
と、この継手の両端受口部内に挿入された２本の熱可塑
性樹脂管とを、溶着の前後を通じてそれぞれの軸芯が同
一直線」二に位置するように位置決め固定することがで
きるものである。したがって、溶着継手と熱可塑性樹脂
管とを、熱可塑性樹脂管が溶着継手に対して傾いた状態
で接合されるといったことがなく、管を溶着むらのない
適切な状態で溶着することができる。しかも、前当接片
を既存の締め付は具で挟持するだけで芯出しができるの
で、取り扱いが容易であり、作業性にも優れている。(Effects of the Invention) As explained above, the positioning tool of the present invention allows the welding joint and the two thermoplastic resin pipes inserted into the sockets at both ends of the joint to be aligned on their respective axes before and after welding. It can be positioned and fixed so that the cores are located on the same straight line. Therefore, the welding joint and the thermoplastic resin pipe are not joined in a state where the thermoplastic resin pipe is inclined with respect to the welding joint, and the pipes can be welded in an appropriate state without uneven welding. In addition, centering can be performed simply by holding the front abutment piece between conventional tightening tools, making it easy to handle and excellent in workability.
第１図は本発明に係る管位置決め具を示す正面図、第２
図は第１図におけるｎ−ｎ線に沿う部分断面側面図、第
３図は本発明に係る管位置決め具の使用状態を示す正面
図、第４図は第３図におけるＩＩ−ＩＶ線に沿う部分断
面側面図、第５図及び第６図はそれぞれ他の実施例を示
す部分斜視図である。
１・・・管位置決め具 １１．．１２・・・半割部材
１．３．１４・・・継手当接部
１５．１６・・・連設部
１．７．１８・・・前当接片
Ｊ・・・溶着継手 Ｓ・・・受口部Ｐ］、、Ｐ２
・・・熱可塑性樹脂管FIG. 1 is a front view showing a pipe positioning tool according to the present invention, and FIG.
The figure is a partial cross-sectional side view taken along the line nn in FIG. 1, FIG. 3 is a front view showing how the tube positioning tool according to the present invention is used, and FIG. 4 is a side view taken along the line II-IV in FIG. 3. A partially sectional side view and FIGS. 5 and 6 are partially perspective views showing other embodiments, respectively. 1... Pipe positioning tool 11. ．． 12...Half member 1.3.14...Joint contact part 15.16...Continuous part 1.7.18...Front contact piece J...Welded joint S... Socket part P],,P2
...Thermoplastic resin pipe
Claims (1)
部となされるとともに、これら受口部の内周部に加熱要
素が埋め込まれた溶着継手と、この溶着継手の受口部に
挿入された熱可塑性樹脂管とを、それぞれの軸芯が一致
するように位置決め固定するのに使用されるものであっ
て、 一対の半割部材から構成され、各半割部材 は、前記溶着継手の端部外周面と当接する継手当接部と
、この継手当接部と連設部を介して設けられ前記熱可塑
性樹脂管の外周面と当接する複数本の管当接片とを有す
るものであることを特徴とする管位置決め具。[Scope of Claims] 1) A welding joint formed in a cylindrical shape from thermoplastic resin, with both ends serving as sockets, and a heating element embedded in the inner periphery of these sockets, and this welding joint. It is used to position and fix a thermoplastic resin pipe inserted into the socket of a joint so that their respective axes coincide. The member includes a joint contact portion that contacts the outer circumferential surface of the end of the welded joint, and a plurality of pipe fittings that are provided via the joint contact portion and the continuous portion and contact the outer circumferential surface of the thermoplastic resin pipe. A pipe positioning tool characterized by having a contact piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1333486A JPH0781668B2 (en) | 1989-12-22 | 1989-12-22 | Pipe positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1333486A JPH0781668B2 (en) | 1989-12-22 | 1989-12-22 | Pipe positioning tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03194293A true JPH03194293A (en) | 1991-08-23 |
| JPH0781668B2 JPH0781668B2 (en) | 1995-09-06 |
Family
ID=18266601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1333486A Expired - Lifetime JPH0781668B2 (en) | 1989-12-22 | 1989-12-22 | Pipe positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0781668B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045021A (en) * | 1990-04-23 | 1992-01-09 | Takenaka Komuten Co Ltd | Joining jig for flexible piping |
| EP1745917A1 (en) * | 2005-07-18 | 2007-01-24 | Georg Fischer Wavin AG | Electrofusion fitting and method for manufacturing pipe connections with the electrofusion fitting |
| CN108215219A (en) * | 2017-12-28 | 2018-06-29 | 贵州晟扬管道科技有限公司 | A kind of large-diameter pipeline sweating soldering device and welding method |
-
1989
- 1989-12-22 JP JP1333486A patent/JPH0781668B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045021A (en) * | 1990-04-23 | 1992-01-09 | Takenaka Komuten Co Ltd | Joining jig for flexible piping |
| EP1745917A1 (en) * | 2005-07-18 | 2007-01-24 | Georg Fischer Wavin AG | Electrofusion fitting and method for manufacturing pipe connections with the electrofusion fitting |
| WO2007009858A1 (en) * | 2005-07-18 | 2007-01-25 | Georg Fischer Wavin Ag | Electric welding sleeve and method for the creation of pipe joints by means of said electric welding sleeve |
| CN108215219A (en) * | 2017-12-28 | 2018-06-29 | 贵州晟扬管道科技有限公司 | A kind of large-diameter pipeline sweating soldering device and welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0781668B2 (en) | 1995-09-06 |
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