JPS6221836Y2 - - Google Patents
Info
- Publication number
- JPS6221836Y2 JPS6221836Y2 JP1982128722U JP12872282U JPS6221836Y2 JP S6221836 Y2 JPS6221836 Y2 JP S6221836Y2 JP 1982128722 U JP1982128722 U JP 1982128722U JP 12872282 U JP12872282 U JP 12872282U JP S6221836 Y2 JPS6221836 Y2 JP S6221836Y2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- flange
- layer
- resin
- synthetic resin
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 10
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は合成樹脂製フランジ継手に関するもの
である。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a synthetic resin flange joint.
（従来の技術）
従来より工場内配管、バルブ、その他機器類と
のフランジ接合には、第１図に示す如き、射出成
形により成形された合成樹脂製フランジ継手１０
が使用されている。(Prior Art) Traditionally, synthetic resin flange joints 10 molded by injection molding have been used for flange joints with pipes, valves, and other equipment in factories, as shown in Fig. 1.
is used.
（考案が解決しようとする問題点）
しかしながら、樹脂材料として、高い強度と所
望の硬度が得られる塩化ビニル樹脂を用いた場合
には、中実厚肉のフランジ部１１の接合面１２に
成形収縮によるヒケ１３が生じて接合面１２が凹
凸になるので、このままでは良好な止水性を得る
ことができず、従来は、射出成形後に接合面１２
を旋盤等の切削装置によりヒケ１３の深さより厚
く切削する二次加工を施して平滑面に仕上げるよ
うにしている為、二次加工費が余分にかかり、製
造費がそれだけ高くなるという問題があつた。(Problem to be solved by the invention) However, when vinyl chloride resin is used as the resin material because it can obtain high strength and desired hardness, molding shrinkage occurs in the joint surface 12 of the solid thick flange portion 11. Since sink marks 13 occur and the joint surface 12 becomes uneven, it is not possible to obtain good water-stopping properties as it is, and conventionally, after injection molding, the joint surface 12
Since the surface is finished with a smooth surface by performing secondary processing to cut it thicker than the depth of the sink mark 13 using a cutting device such as a lathe, there is a problem that the secondary processing cost is extra and the manufacturing cost increases accordingly. Ta.
（問題点を解決するための手段）
本考案は、上記した従来の問題点に鑑みてなさ
れたもので、薄肉の表面樹脂層を有し、この表面
樹脂層で包まれる中実層を無機物質を含有する樹
脂材料を用いて成形することにより、従来の射出
成形後の二次加工が不要で、従来に比し製造費を
下げることができる合成樹脂製フランジ継手を提
供することを目的とする。(Means for Solving the Problems) The present invention has been made in view of the above-mentioned conventional problems. The purpose of the present invention is to provide a synthetic resin flange joint that does not require secondary processing after conventional injection molding and can reduce manufacturing costs compared to conventional methods by molding using a resin material containing .
（実施例）
以下、本考案の一実施例を図面を参照して説明
する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第２図において、２０は射出成形された合成樹
脂製フランジ継手であつて、表面樹脂層３０と該
表面樹脂層で包まれる中実層４０からなり、公知
の二層成形法により成形されている。表面樹脂層
３０は成形収縮によるヒケが生じない程度に薄肉
の層であつて、従来の管継手に一般的な例えば塩
化ビニル樹脂を材料として成形される。また、中
実層４０はガラス粉等の無機物質を含有する樹脂
材料を用いて成形される。２１は短筒部、２２は
鍔部、２３は鍔部２２の接合面、２４はボルト孔
である。 In FIG. 2, 20 is an injection-molded synthetic resin flange joint, which is composed of a surface resin layer 30 and a solid layer 40 surrounded by the surface resin layer, and is molded by a known two-layer molding method. . The surface resin layer 30 is a thin layer that does not cause sink marks due to molding shrinkage, and is molded from a material such as vinyl chloride resin that is commonly used in conventional pipe joints. Moreover, the solid layer 40 is molded using a resin material containing an inorganic substance such as glass powder. 21 is a short cylindrical portion, 22 is a flange portion, 23 is a joint surface of the flange portion 22, and 24 is a bolt hole.
本実施例のフランジ継手２０の実質部分を構成
する中実層４０は無機物質を含有する樹脂材料で
成形される為、成形収縮によるヒケの発生は殆ど
なく、また、表面樹脂層３０は成形収縮が生じな
い厚さであるから、フランジ継手２０は凹凸のな
い平坦な接合面２３を有している。 Since the solid layer 40 constituting the substantial part of the flange joint 20 of this embodiment is molded from a resin material containing an inorganic substance, there is almost no sinkage caused by molding shrinkage, and the surface resin layer 30 is molded by molding shrinkage. Since the thickness is such that no unevenness occurs, the flange joint 20 has a flat joint surface 23 without any unevenness.
更に、中実層４０は表面樹脂層３０で覆われて
いるので、中実層４０に含まれる無機物質により
接合面２３のシール性が損なわれたり、あるいは
短筒部２１の接合強度が低下したりすることがな
い。 Furthermore, since the solid layer 40 is covered with the surface resin layer 30, the inorganic substance contained in the solid layer 40 may impair the sealing performance of the joint surface 23 or reduce the joint strength of the short cylindrical portion 21. There is nothing to do.
（考案の効果）
本考案の合成樹脂製フランジ継手は以上の通り
構成され、表面樹脂層で包まれる中実層が無機物
質を含有する樹脂材料で構成されているので、成
形収縮が殆どなく、射出成形されたフランジ継手
の鍔部接合面がヒケのない平滑面となるので、従
来のような二次加工が不要となり、それだけ従来
のものに比し、製造費を安価にすることができ
る。(Effects of the invention) The synthetic resin flange joint of the invention is constructed as described above, and since the solid layer surrounded by the surface resin layer is composed of a resin material containing an inorganic substance, there is almost no molding shrinkage. Since the joint surface of the flange part of the injection molded flange joint becomes a smooth surface without sink marks, there is no need for secondary processing as in the past, and the manufacturing cost can be reduced accordingly compared to the conventional joint.
更に、中実層が表面樹脂層で覆われているの
で、中実層４０に含まれる無機物質により接合面
のシール性が損なわれたり、あるいは短筒部の接
合強度が低下したりすることがない。 Furthermore, since the solid layer is covered with a surface resin layer, the inorganic substances contained in the solid layer 40 may impair the sealing performance of the joint surfaces or reduce the joint strength of the short cylindrical portion. do not have.
第１図は従来の合成樹脂管継手の半部縦断面
図、第２図は本考案による合成樹脂管継手の実施
例の半部縦断面図である。
２０……合成樹脂製フランジ継手、２１……短
筒部、２２……鍔部、３０……表面樹脂層、４０
……中実層。
FIG. 1 is a half longitudinal sectional view of a conventional synthetic resin pipe joint, and FIG. 2 is a half longitudinal sectional view of an embodiment of the synthetic resin pipe joint according to the present invention. 20...Synthetic resin flange joint, 21...Short cylindrical part, 22... Flange part, 30...Surface resin layer, 40
...middle class.
Claims (1)
脂製フランジ継手であつて、薄肉の表面樹脂層を
有し、該表面樹脂層で包まれる中実層が無機物質
を含有する樹脂材料で構成されていることを特徴
とする合成樹脂製フランジ継手。 A synthetic resin flange joint in which a flange is integrally formed at one end of a short cylindrical part, which has a thin surface resin layer, and a solid layer surrounded by the surface resin layer is made of a resin material containing an inorganic substance. A synthetic resin flange joint characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12872282U JPS5932793U (en) | 1982-08-26 | 1982-08-26 | Synthetic resin flange joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12872282U JPS5932793U (en) | 1982-08-26 | 1982-08-26 | Synthetic resin flange joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5932793U JPS5932793U (en) | 1984-02-29 |
| JPS6221836Y2 true JPS6221836Y2 (en) | 1987-06-03 |
Family
ID=30291910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12872282U Granted JPS5932793U (en) | 1982-08-26 | 1982-08-26 | Synthetic resin flange joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5932793U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60156281U (en) * | 1984-03-28 | 1985-10-17 | 日本ゼオン株式会社 | Synthetic resin joints in pipelines |
| JPS63187823A (en) * | 1987-01-30 | 1988-08-03 | Mitsubishi Electric Corp | Relay amplifier system |
| JPH0447508Y2 (en) * | 1987-02-10 | 1992-11-10 | ||
| FR2926118B1 (en) * | 2008-01-04 | 2010-01-29 | Snecma | COMPOSITE FLANGE WITH MACHINING PART. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210741Y2 (en) * | 1972-11-13 | 1977-03-08 |
-
1982
- 1982-08-26 JP JP12872282U patent/JPS5932793U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5932793U (en) | 1984-02-29 |
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