JPH0740458A - Manufacture of tubular flanged member - Google Patents
Manufacture of tubular flanged memberInfo
- Publication number
- JPH0740458A JPH0740458A JP5188115A JP18811593A JPH0740458A JP H0740458 A JPH0740458 A JP H0740458A JP 5188115 A JP5188115 A JP 5188115A JP 18811593 A JP18811593 A JP 18811593A JP H0740458 A JPH0740458 A JP H0740458A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- thermoplastic resin
- tubular
- short tube
- flanged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
-
- 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
- B29C66/128—Stepped joint cross-sections
- B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
- B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
-
- 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
- B29C66/128—Stepped joint cross-sections
- B29C66/1286—Stepped joint cross-sections comprising at least one bevelled 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
- B29C66/53—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
-
- 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
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
-
- 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)
- General Engineering & Computer Science (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は先端部にフランジ取付部
が設けられた管状フランジ部材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a tubular flange member having a flange mounting portion at its tip.
【０００２】[0002]
【従来の技術】熱可塑性樹脂製管体を接続する方法の一
つとしてフランジで接続する方法がある。このフランジ
で管体を接続する方法としては、特開昭５８−１３７６
９０号公報に記載あるように、熱可塑性樹脂製管体の端
部を加熱軟化させて、この端部を拡げてフランジ付き熱
可塑性樹脂製管体を製造し、このフランジ付き熱可塑性
樹脂製管体のフランジ同士をボルト・ナットで接続する
方法が知られている。又、特開昭５２−２８５７５号公
報に記載あるように、熱可塑性樹脂製管体の外周面に帯
状熱可塑性樹脂を巻き重ねてフランジを設け、このフラ
ンジ部分を切断してフランジ付き熱可塑性樹脂製管体と
し、このフランジ付き熱可塑性樹脂製管体のフランジ同
士を接続する方法も知られている。2. Description of the Related Art A flange connection is one of the methods for connecting thermoplastic resin pipes. As a method of connecting pipes with this flange, Japanese Patent Laid-Open No. 58-1376.
As described in Japanese Patent Publication No. 90, the end portion of the thermoplastic resin pipe body is heated and softened, and the end portion is expanded to manufacture a flanged thermoplastic resin pipe body, and the flanged thermoplastic resin pipe body is manufactured. It is known to connect body flanges with bolts and nuts. Further, as described in JP-A-52-28575, a thermoplastic resin pipe is wound around a peripheral surface of a thermoplastic resin strip to form a flange, and a flange is provided, and the flange portion is cut to form a thermoplastic resin with a flange. A method is also known in which a tubular body is made and the flanges of the thermoplastic resin tubular body with flanges are connected to each other.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、熱可塑
性樹脂製管体の端部を加熱軟化させて、この端部を拡げ
てフランジとするフランジ付き熱可塑性樹脂製管体の製
造方法は熱可塑性樹脂製管体の端部を大きく拡げるため
に、このフランジ部の歪みが大きくなることと、このフ
ランジ部が薄肉となることとが相まって、機械的強度の
劣るフランジとなる。従って、このフランジ同士を接続
したとき、この接続部分が壊れ易いという問題がある。However, the method for producing a flanged thermoplastic resin pipe body, in which the end portion of the thermoplastic resin pipe body is softened by heating and the end portion is expanded to form a flange, is known. Since the end portion of the pipe-making body is greatly expanded, the distortion of this flange portion becomes large, and this flange portion becomes thin, resulting in a flange having poor mechanical strength. Therefore, when the flanges are connected to each other, there is a problem that the connecting portion is easily broken.
【０００４】又、帯状熱可塑性樹脂を巻き重ねてフラン
ジ部分とするフランジ付き熱可塑性樹脂製管体の製造方
法は帯状熱可塑性樹脂を多数巻き重ねるために製造時間
が長くなり不便であると共に、出来上がったフランジ付
き管体のフランジ部分が層状に剥がれ易いという問題が
ある。本発明者は、このフランジ付き管体を一体に成形
することにより機械的強度の大きいフランジ付き管体を
射出成形機で製造してみたが、大きな金型が必要で高価
になり実用にならなかった。Further, the method for producing a flanged thermoplastic resin tube body in which a strip-shaped thermoplastic resin is rolled up to form a flange portion is inconvenient because the strip-shaped thermoplastic resin is wound many times, which is inconvenient. In addition, there is a problem that the flange portion of the flanged tubular body is easily peeled off in layers. The present inventor tried to produce a flanged tubular body having high mechanical strength by integrally molding the flanged tubular body with an injection molding machine, but it requires a large mold and becomes expensive and not practical. It was
【０００５】そこで、本発明者は熱可塑性樹脂製管体を
加工する上記方法を改良することによって上記問題を解
決しようと研究を重ねた結果、上記問題は熱可塑性樹脂
製管体に大きなフランジを直接設けるために問題が発生
すること、従って、このように熱可塑性樹脂製管体にフ
ランジを直接設けたフランジ付き管体とせずに、押出成
形機で製造し難い外方向に突出したフランジ取付部の近
傍のみを射出成形機で製造し、このフランジ取付部と押
出成形機で製造した熱可塑性樹脂製管体とを接続して管
状フランジ部材を製造し、このフランジ取付部に別に製
造した機械的強度の大きいフランジを引っかけ、このフ
ランジ同士を接続して熱可塑性樹脂製管体を接続するこ
とで上記問題が解決できることに気付き、これを実現す
るために、この接続に使用する管状フランジ部材を安価
に製造する方法を発明したのである。即ち、本発明の目
的は、熱可塑性樹脂製管体をフランジで接続するときに
使用する管状フランジ部材を安価に製造する管状フラン
ジ部材の製造方法を提供することである。Therefore, as a result of repeated research by the present inventors to solve the above problems by improving the above method for processing a thermoplastic resin tube, the above problem results in a large flange on the thermoplastic resin tube. The problem arises because it is installed directly, so without using a flanged tube in which the flange is directly installed on the thermoplastic resin tube, it is difficult to manufacture with an extruder. Is manufactured by an injection molding machine only in the vicinity of, and a tubular flange member is manufactured by connecting this flange mounting part and a thermoplastic resin pipe manufactured by an extrusion molding machine, and a mechanically manufactured separately for this flange mounting part. I noticed that the above problem could be solved by hooking the flanges with high strength and connecting the flanges together to connect the thermoplastic resin pipes. We invented a method of inexpensively manufacturing a tubular flange member to be used for. That is, an object of the present invention is to provide a method for manufacturing a tubular flange member, which can inexpensively manufacture a tubular flange member used when connecting thermoplastic resin pipes with a flange.
【０００６】[0006]
【課題を解決するための手段】本発明は上記の目的を達
成するためになされたものであって、熱可塑性樹脂製管
体の先端部にフランジ取付部が設けられた管状フランジ
部材の製造方法であって、熱可塑性樹脂を射出成形機の
金型の中に射出して、短管からなる融着部とフランジ取
付部とが一体になっているフランジ短管を製造し、この
フランジ短管の融着部を熱可塑性樹脂製管体の先端に融
着させるものである。The present invention has been made to achieve the above object, and is a method for manufacturing a tubular flange member in which a flange mounting portion is provided at the tip of a thermoplastic resin tubular body. And a thermoplastic resin is injected into a mold of an injection molding machine to manufacture a flange short tube in which a fusion-bonded portion composed of a short tube and a flange mounting portion are integrated. The fusion-bonding part is fused to the tip of the thermoplastic resin tube.
【０００７】本発明においてはフランジ短管の融着部と
熱可塑性樹脂製管体の先端とを融着させるのであるが、
このときのフランジ短管の融着部と熱可塑性樹脂製管体
の先端との融着方法は適宜でよい。例えば、融着部と熱
可塑性樹脂製管体の先端が表面に対してほぼ直角に切断
された端面同士を接合させる所謂バット継ぎでもよい
し、斜め方向に切断された端面同士を接合させる所謂ソ
ギ継ぎでもよいし、段差のある端面同士を接合させる所
謂腰掛け継ぎでもよい。又、一方を拡げた受け口とな
し、この受け口の中に他方の挿し口を入れて接合する所
謂ソケット継ぎでもよい。又、融着させる方法も、両方
の面を加熱溶融させた後接合させて融着させてもよい
し、接合させている少なくとも一方の面を高速に回転さ
せ、この回転による摩擦熱で融着させる所謂スピンウェ
ルド方法で接続させてもよい。In the present invention, the fusion-bonded portion of the flange short tube and the tip of the thermoplastic resin tube are fused.
At this time, a method of fusing the fusion-bonded portion of the flange short tube and the tip of the thermoplastic resin tubular body may be appropriately selected. For example, a so-called butt joint that joins the end faces of the fusion-bonded portion and the tip of the thermoplastic resin tube that are cut substantially at right angles to the surface may be used, or a so-called so-called joint that joins the end faces that are cut in an oblique direction. It may be a joint, or a so-called seat joint that joins end surfaces having steps. Alternatively, a so-called socket joint may be used in which one side is formed as an expanded receiving port, and the other insertion port is inserted into this receiving port and joined. Also, as a method of fusing, both surfaces may be heated and melted and then joined and fused, or at least one of the joined surfaces is rotated at a high speed, and the fusion is performed by frictional heat generated by this rotation. The connection may be made by a so-called spin weld method.
【０００８】[0008]
【作用】本発明の管状フランジ部材の製造方法では熱可
塑性樹脂を射出成形機の金型の中に射出して、押出成形
機で製造し難い外方向に突出したフランジ取付部と、熱
可塑性樹脂製管体との接続に必要な短管からなる融着部
とが一体になっているフランジ短管を製造する。このよ
うに必要最小限の形状のフランジ短管を射出成形機で製
造し熱可塑性樹脂製管体と融着するから、金型も大型に
ならず安価に製造できる。その後、このフランジ短管の
融着部を熱可塑性樹脂製管体の先端に融着させるから、
フランジ取付部に直接融着させることと比較すると融着
が容易である。このようにして製造された管状フランジ
部材を、別に製造した中央部に通孔のあるフランジの通
孔の中に挿入して、先端のフランジ取付部にフランジを
引っ掛け、このフランジ同士をボルト等で接合すると、
管状フランジ部材が接続できる。In the method of manufacturing the tubular flange member of the present invention, the thermoplastic resin is injected into the mold of the injection molding machine, and the outwardly protruding flange mounting portion, which is difficult to manufacture by the extrusion molding machine, and the thermoplastic resin. A flanged short pipe is manufactured which is integrated with a fusion-bonded portion composed of a short pipe required for connection with a pipe body. As described above, since the flange short tube having the minimum necessary shape is manufactured by the injection molding machine and is fused with the thermoplastic resin tube body, the mold is not large and can be manufactured at low cost. After that, since the fusion-bonded portion of this flange short tube is fused to the tip of the thermoplastic resin tubular body,
Fusing is easier as compared with fusing directly to the flange mounting portion. The tubular flange member manufactured in this way is inserted into the through hole of the separately manufactured flange that has a through hole in the center, and the flange is hooked on the flange mounting part at the tip, and the flanges are bolted together. When joined,
A tubular flange member can be connected.
【０００９】[0009]
【実施例】以下、本発明の実施例を説明する。図１〜図
２は本発明の一実施例を示すもので、図１はフランジ短
管を示すもので、（イ）は管軸方向に切断した断面図、
（ロ）は合成樹脂製管体方向から見た正面図、図２は管
状フランジ部材の製造方法を示すもので、（イ）はフラ
ンジ短管と熱可塑性樹脂製管体とを接続した状態を示す
断面図、（ロ）は管状フランジ部材を示す断面図であ
る。図３は本発明の他の実施例を示すもので、管状フラ
ンジ部材にフランジを取り付けた状態を示す断面図であ
る。EXAMPLES Examples of the present invention will be described below. 1 and 2 show an embodiment of the present invention, FIG. 1 shows a flanged short pipe, and (a) is a sectional view taken along the pipe axis direction,
(B) is a front view as seen from the direction of the synthetic resin pipe body, FIG. 2 shows a method for manufacturing the tubular flange member, and (A) shows a state in which the flange short pipe and the thermoplastic resin pipe body are connected. Sectional drawing which shows, (b) is sectional drawing which shows a tubular flange member. FIG. 3 shows another embodiment of the present invention and is a sectional view showing a state in which a flange is attached to a tubular flange member.
【００１０】図１〜２において、１はポリエチレンから
なる熱可塑性樹脂を原料として射出成形機で製造したフ
ランジ短管であり、このフランジ短管１はフランジ取付
部１１と短管からなる融着部１２とが一体になっている
ものである。２はポリエチレン樹脂製管体からなる熱可
塑性樹脂製管体である。３はフランジ短管１と熱可塑性
樹脂製管体２とを融着したときに生ずるビードである。
４は管状フランジ部材である。５は鋼製のフランジであ
り、このフランジ５は板状の本体５１とボルト孔５２と
熱可塑性樹脂製管体２や融着部１２を挿入する通孔５３
とからなる。1 and 2, reference numeral 1 is a flanged short tube manufactured by an injection molding machine using a thermoplastic resin made of polyethylene as a raw material. The flanged short tube 1 is a fusion-bonded section composed of a flange mounting portion 11 and a short tube. It is one that is integrated with 12. Reference numeral 2 is a thermoplastic resin tube made of a polyethylene resin tube. 3 is a bead generated when the flange short tube 1 and the thermoplastic resin tube body 2 are fused.
4 is a tubular flange member. Reference numeral 5 denotes a steel flange, and the flange 5 has a plate-shaped main body 51, a bolt hole 52, a through hole 53 into which the thermoplastic resin pipe body 2 and the fused portion 12 are inserted.
Consists of.
【００１１】次に、管状フランジ部材の製造方法および
使用方法について説明する。射出成形機で溶融した熱可
塑性樹脂を金型の中に射出して、図１に示すフランジ取
付部１１と融着部１２とが一体になっているフランジ短
管１を製造する。このとき使用する金型は管状フランジ
部材４の一部であるフランジ短管１のみを製造するもの
であるから、金型が大型にならず、安価である。次に、
このフランジ短管１の端面と熱可塑性樹脂製管体２の端
面とを加熱し、両者を当接して溶着させる。すると、図
２の（イ）に示すように接続部分にビード３が生ずる。
外周面のビード３と内周面のビード３とを取り除くと、
（ロ）に示すような管状フランジ部材４が完成する。Next, a method for manufacturing and using the tubular flange member will be described. The thermoplastic resin melted by an injection molding machine is injected into a mold to manufacture the flange short pipe 1 in which the flange mounting portion 11 and the fusion bonding portion 12 shown in FIG. 1 are integrated. Since the mold used at this time is for manufacturing only the flange short tube 1 which is a part of the tubular flange member 4, the mold does not become large and is inexpensive. next,
The end surface of this flange short tube 1 and the end surface of the thermoplastic resin tube body 2 are heated, and both are brought into contact and welded. Then, as shown in FIG. 2A, the bead 3 is generated at the connecting portion.
If the bead 3 on the outer peripheral surface and the bead 3 on the inner peripheral surface are removed,
The tubular flange member 4 as shown in (b) is completed.
【００１２】この管状フランジ部材４の後端部をフラン
ジ５の通孔５３に挿入しフランジ５を先方に移動させる
と、図２（ロ）の点線に示すように、通孔５３の周縁部
がフランジ取付部１１に引っ掛かってフランジ５が先方
に抜けない。このフランジ５同士をボルト孔５２にボル
トを挿入して取り付けると、管状フランジ部材４が接続
できる。When the rear end of the tubular flange member 4 is inserted into the through hole 53 of the flange 5 and the flange 5 is moved forward, as shown by the dotted line in FIG. The flange 5 is caught in the flange mounting portion 11 and the flange 5 cannot be pulled out. When the flanges 5 are attached to the bolt holes 52 by inserting bolts, the tubular flange member 4 can be connected.
【００１３】次に、図３に示す実施例について説明す
る。図１〜２に示す実施例と同様にして、フランジ短管
１ａを射出成形機で製造し、このフランジ短管１ａの短
管からなる融着部１２ａをフランジ５ａの通孔５３ａに
挿入した後、フランジ短管１ａの端面と熱可塑性樹脂製
管体２ａの端面とを加熱融着する。その後、内周側に突
出しているビードを取り除くと、管状フランジ部材４ａ
が完成する。このようにして製造した管状フランジ部材
を、図３に示すように、ボルト孔５２ａにボルトを挿入
して取り付けると、管状フランジ部材４ａが接続でき
る。Next, the embodiment shown in FIG. 3 will be described. After manufacturing the flange short pipe 1a with an injection molding machine in the same manner as the embodiment shown in FIGS. 1 and 2, after inserting the fusion-bonded portion 12a formed of the short pipe of the flange short pipe 1a into the through hole 53a of the flange 5a. The end surface of the flange short tube 1a and the end surface of the thermoplastic resin tube body 2a are heat-sealed. After that, when the bead protruding to the inner peripheral side is removed, the tubular flange member 4a
Is completed. The tubular flange member 4a can be connected by mounting the tubular flange member thus manufactured by inserting a bolt into the bolt hole 52a as shown in FIG.
【００１４】この実施例においては、融着する際、外周
面に生ずるビード３ａを取り除く必要がないので、作業
工程が減少し便利であると共に、このビード３ａによっ
てフランジ５ａが熱可塑性樹脂製管２ａ側に移動するの
が防止できるので、フランジ同士が接続し易く便利であ
る。その他の作用は図１〜２に示す実施例と同じであ
る。In this embodiment, since it is not necessary to remove the bead 3a generated on the outer peripheral surface during fusion bonding, the number of working steps is reduced, which is convenient, and the flange 5a causes the thermoplastic resin pipe 2a to be formed. Since it can be prevented from moving to the side, the flanges can be easily connected to each other, which is convenient. Other functions are the same as those of the embodiment shown in FIGS.
【００１５】[0015]
【発明の効果】以上説明したように、本発明では押出機
で熱可塑性樹脂製管を製造する際に成形し難いフランジ
取付部と、熱可塑性樹脂製管体との接続に必要な短管か
らなる融着部とが一体になっているフランジ短管を射出
成形機で製造し熱可塑性樹脂製管体に融着するから、大
型の金型が必要でない。従って、管状フランジ部材が安
価に製造できる。又、フランジ短管には短管からなる融
着部があるから、熱可塑性樹脂製管体と接続し易い。本
発明の管状フランジ部材は熱可塑性樹脂製管体の端部を
拡げたり、端部に帯状熱可塑性樹脂を巻き重ねたりしな
いから、フランジ部の機械的強度が大きく、安心してフ
ランジ同士を接続することができる。As described above, according to the present invention, the flange mounting portion, which is difficult to form when manufacturing the thermoplastic resin pipe by the extruder, and the short pipe necessary for connecting the thermoplastic resin pipe body. Since a flange short tube which is integrated with the fusion-bonding part is manufactured by an injection molding machine and is fused to the thermoplastic resin tube body, a large mold is not required. Therefore, the tubular flange member can be manufactured at low cost. Further, since the flange short pipe has a fusion-bonded portion made of a short pipe, it can be easily connected to the thermoplastic resin pipe body. Since the tubular flange member of the present invention does not expand the end portion of the thermoplastic resin tube body or wrap the belt-shaped thermoplastic resin on the end portion, the mechanical strength of the flange portion is large, and the flanges can be securely connected to each other. be able to.
【図１】本発明の一実施例のフランジ短管を示すもの
で、（イ）は管軸方向に切断した断面図（ロ）は熱可塑
性樹脂製管方向から見た正面図である。FIG. 1 shows a flanged short pipe according to an embodiment of the present invention, in which (a) is a cross-sectional view taken along the pipe axis direction and (b) is a front view seen from a thermoplastic resin pipe direction.
【図２】管状フランジ部材の製造方法を示すもので、
（イ）はフランジ短管と熱可塑性樹脂製管体とを接続し
た状態を示す断面図、（ロ）は管状フランジ部材を示す
断面図である。FIG. 2 shows a method for manufacturing a tubular flange member,
(A) is a cross-sectional view showing a state in which a flange short pipe and a thermoplastic resin pipe body are connected, and (B) is a cross-sectional view showing a tubular flange member.
【図３】本発明の他の実施例を示すもので、管状フラン
ジ部材にフランジを取り付けた状態を示す断面図であ
る。FIG. 3 shows another embodiment of the present invention and is a cross-sectional view showing a state in which a flange is attached to a tubular flange member.
１、１ａ フランジ短管 １１ フランジ取付部 １２、１２ａ 融着部 ２、２ａ 熱可塑性樹脂製管体 ３、３ａ ビード ４、４ａ 管状フランジ部材 ５、５ａ フランジ 1, 1a Flange short pipe 11 Flange mounting part 12, 12a Fusion part 2, 2a Thermoplastic resin pipe body 3, 3a Bead 4, 4a Tubular flange member 5, 5a Flange
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ１６Ｌ 23/02 // Ｂ２９Ｌ 31:24 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location F16L 23/02 // B29L 31:24
Claims (1)
取付部が設けられた管状フランジ部材の製造方法であっ
て、熱可塑性樹脂を射出成形機の金型の中に射出して、
短管からなる融着部とフランジ取付部とが一体になって
いるフランジ短管を製造し、このフランジ短管の融着部
を熱可塑性樹脂製管体の先端に融着させて管状フランジ
部材とすることを特徴とする管状フランジ部材の製造方
法。1. A method of manufacturing a tubular flange member in which a flange mounting portion is provided at the tip of a thermoplastic resin tube body, wherein the thermoplastic resin is injected into a mold of an injection molding machine,
A flanged short tube in which a fused portion made of a short tube and a flange mounting portion are integrated is manufactured, and the fused portion of the flanged short tube is fused to the tip of a thermoplastic resin tubular body to form a tubular flange member. A method for manufacturing a tubular flange member, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18811593A JP3181438B2 (en) | 1993-07-29 | 1993-07-29 | Manufacturing method of tubular flange member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18811593A JP3181438B2 (en) | 1993-07-29 | 1993-07-29 | Manufacturing method of tubular flange member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0740458A true JPH0740458A (en) | 1995-02-10 |
| JP3181438B2 JP3181438B2 (en) | 2001-07-03 |
Family
ID=16217974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18811593A Expired - Lifetime JP3181438B2 (en) | 1993-07-29 | 1993-07-29 | Manufacturing method of tubular flange member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3181438B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100921992B1 (en) * | 2009-01-21 | 2009-10-14 | 벽진산업 주식회사 | Fold type drain pipe for plange |
| JP2015192524A (en) * | 2014-03-28 | 2015-11-02 | 積水化学工業株式会社 | duct sleeve |
| CN105798345A (en) * | 2016-06-01 | 2016-07-27 | 苏州工业职业技术学院 | Automatic fixture for lightly cutting thin-wall ring workpiece |
| JP2019015343A (en) * | 2017-07-07 | 2019-01-31 | 積水化学工業株式会社 | Resin pipe connection structure, and resin pipe connection method |
-
1993
- 1993-07-29 JP JP18811593A patent/JP3181438B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100921992B1 (en) * | 2009-01-21 | 2009-10-14 | 벽진산업 주식회사 | Fold type drain pipe for plange |
| JP2015192524A (en) * | 2014-03-28 | 2015-11-02 | 積水化学工業株式会社 | duct sleeve |
| CN105798345A (en) * | 2016-06-01 | 2016-07-27 | 苏州工业职业技术学院 | Automatic fixture for lightly cutting thin-wall ring workpiece |
| JP2019015343A (en) * | 2017-07-07 | 2019-01-31 | 積水化学工業株式会社 | Resin pipe connection structure, and resin pipe connection method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3181438B2 (en) | 2001-07-03 |
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