JP2514228B2 - Sealing material for pipe fittings - Google Patents
Sealing material for pipe fittingsInfo
- Publication number
- JP2514228B2 JP2514228B2 JP63096385A JP9638588A JP2514228B2 JP 2514228 B2 JP2514228 B2 JP 2514228B2 JP 63096385 A JP63096385 A JP 63096385A JP 9638588 A JP9638588 A JP 9638588A JP 2514228 B2 JP2514228 B2 JP 2514228B2
- Authority
- JP
- Japan
- Prior art keywords
- peripheral surface
- receiving portion
- inner peripheral
- outer peripheral
- receiving
- 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 - Fee Related
Links
Landscapes
- Joints With Pressure Members (AREA)
- Joints With Sleeves (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，管継手における受口部と挿口部との間に介
装され，両者の間を液密にシールするシール部材が設け
られた管継手の接続構造に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is provided with a seal member that is interposed between a receiving portion and an insertion portion of a pipe joint and liquid-tightly seals the both. Pipe connection structure.
（従来の技術） 例えば，建築物内に略鉛直状に水道管を堅配管する場
合には，実開昭61−175684号公報に開示されているよう
に，受口部に挿口部を挿入して管同士を接合する管継手
が使用される。堅配管する場合には，受口部が上方に開
口するように配管され，該受口部内に挿口部が上方から
挿入される。このような管継手では，受口部と挿口部と
の間に，ゴム等の弾性を有するシール部材が介在され
る。上記公報には，受口部内に円筒状のシール部材が配
設されている。該シール部材は，内周面に，内奥側内方
へ突出する環状舌片が設けられており，また，受口部の
開口側端面には，該舌片とは別に，内方へ突出する環状
の水切用ひだが設けられている。環状舌片及び水切用ひ
だは，挿口部が受口部内に挿入された場合に，それぞれ
が該挿口部外周面に密着する。このような状態で，環状
舌片は，受口部と挿口部との間を液密にシールし，水切
用ひだは，挿口部外周面を伝う水が該挿口部とシール部
材の開口端との間に溜まることを防止する。(Prior Art) For example, when a water pipe is rigidly installed in a building in a substantially vertical shape, an insertion port is inserted into a receiving port as disclosed in Japanese Utility Model Laid-Open No. 61-175684. Then, a pipe joint for joining the pipes to each other is used. In the case of rigid piping, the receiving portion is arranged so as to open upward, and the insertion portion is inserted into the receiving portion from above. In such a pipe joint, an elastic seal member such as rubber is interposed between the receiving portion and the insertion portion. In the above publication, a cylindrical seal member is arranged in the receiving portion. The sealing member is provided with an annular tongue protruding inward on the inner peripheral side on the inner peripheral surface, and the opening side end surface of the receiving portion projects inwardly in addition to the tongue. An annular drain fold is provided. The annular tongue piece and the drainage pleats are in close contact with the outer peripheral surface of the insertion opening when the insertion opening is inserted into the receiving opening. In such a state, the ring-shaped tongue seals the space between the receiving part and the insertion part in a liquid-tight manner, and the drainage fold allows the water traveling along the outer peripheral surface of the insertion part to separate between the insertion part and the sealing member. Prevents accumulation between the open end.
（発明が解決しようとする課題） 上記公報に開示されたシール部材では，水切用ひだが
環状舌片とは別体に構成されているため，該水切用ひだ
が経時的に材料劣化すると容易に破損するおそれがあ
る。挿口部に振動等が作用する場合には，該水切用ひだ
は，一層，容易に破損する。水切用ひだが破損すれば，
挿口部とシール部材の開口端との間に水が溜まり，挿口
部が金属管であれば，該挿口部が腐蝕する。(Problems to be Solved by the Invention) In the seal member disclosed in the above-mentioned publication, since the draining pleats are formed separately from the annular tongue, it is easy for the draining pleats to deteriorate over time. It may be damaged. When vibration or the like acts on the insertion opening, the drain pleats are more easily damaged. If the drain folds are damaged,
Water accumulates between the insertion opening and the opening end of the seal member, and if the insertion opening is a metal tube, the insertion opening is corroded.
本発明は上記従来の問題を解決するものであり，その
目的は，比較的簡潔な構成であって，長期にわたって挿
口部との間に水等が溜まることを防止し得る管継手用シ
ール部材を提供することにある。本発明の他の目的は，
挿口部と受口部とのシール性に優れた管継手の接続構造
を提供することにある。The present invention solves the above-mentioned conventional problems, and an object thereof is a relatively simple structure, and a sealing member for a pipe joint which can prevent water or the like from accumulating between it and the insertion port over a long period of time. To provide. Another object of the present invention is to
An object of the present invention is to provide a connection structure for a pipe joint that is excellent in the sealing property between the insertion port and the receiving port.
（課題を解決するための手段） 本発明は，先端に縮径部が設けられ，該縮径部の内周
面が湾曲面とされるとともに，段部が設けられた受口部
に，外周面に，受口部の縮径部の湾曲面に整合する湾曲
面を設けられるとともに，受口部の段差に整合する段部
が設けられた弾性を有する円筒状のシール本体部と，該
シール本体部の受口部開口側端部に，該端部から内奥側
内方へ突出するべく配設されており，その内周面が，該
受口部内へ挿入される挿口部外周面に密着する環状の舌
片と，該舌片の外周面に外方に突出するように配設され
ており，該舌片の内周面が挿口部外周面に密着した際
に，前記シール本体部内周面に押しつけられる押圧部
と，からなるシール部材を設けてなり，そのことにより
上記目的が達成される。(Means for Solving the Problem) According to the present invention, a diameter-reduced portion is provided at the tip, the inner peripheral surface of the diameter-reduced portion is a curved surface, and the outer periphery is provided in the receiving portion provided with the step portion. A curved cylindrical surface that matches the curved surface of the reduced diameter portion of the receiving portion and a stepped portion that matches the step of the receiving portion, and an elastic cylindrical seal body; At the end of the main body part on the opening side of the receiving part, the inner peripheral surface is arranged so as to project inward from the end part, and the inner peripheral surface is the outer peripheral surface of the insertion part inserted into the receiving part. And a ring-shaped tongue piece that is in close contact with the tongue piece, and is arranged so as to project outward on the outer peripheral surface of the tongue piece. When the inner peripheral surface of the tongue piece adheres to the outer peripheral surface of the insertion opening, the seal A sealing member including a pressing portion that is pressed against the inner peripheral surface of the main body is provided, and the above object is achieved thereby.
（実施例） 以下に本発明を実施例について説明する。(Example) Hereinafter, the present invention will be described with reference to Examples.
第１図は本発明のシール部材を有する管継手の縦断面
図であり，本発明のシール部材10は，接続管20の一端部
に形成された受口部21内に配設される。該受口部21に
は，その端面の開口部21dから接続管30の挿口部31が挿
入される。該受口部21は，第２図に示すように，該受口
部21を除いた接続管20の管本体部22に連設されるテーパ
部21aを有する。該テーパ部21aは，管本体部22から徐々
に拡径されており，受口部21の中央部の一定の外径を有
する円筒状部21bに連なっている。該円筒状部21bは，受
口部21先端側の縮径部21cに連なっている。該縮径部21c
は，先端になるに連れて縮径するように円弧状に湾曲さ
れており，該縮径部21cの先端部に開口部21dが形成され
ている。円筒状部21bの内周面には段部21eが設けられて
いる。該受口部21は，内径および外径が一定の接続管20
の端部を２次加工により拡径して製造される。該２次加
工としてはバルジ加工，ヘラ加工，シェルエキスパンド
加工等が採用される。FIG. 1 is a vertical cross-sectional view of a pipe joint having a seal member of the present invention. The seal member 10 of the present invention is arranged in a receiving portion 21 formed at one end of a connecting pipe 20. Into the receiving portion 21, the insertion portion 31 of the connecting pipe 30 is inserted from the opening 21d on the end surface. As shown in FIG. 2, the receiving portion 21 has a taper portion 21a which is connected to the pipe main body portion 22 of the connecting pipe 20 excluding the receiving portion 21. The taper portion 21a is gradually expanded in diameter from the pipe body portion 22, and is connected to a cylindrical portion 21b having a constant outer diameter at the center of the receiving portion 21. The cylindrical portion 21b is connected to the reduced diameter portion 21c on the tip side of the receiving portion 21. The reduced diameter portion 21c
Is curved in an arc shape so that the diameter decreases as it approaches the tip, and an opening 21d is formed at the tip of the diameter-reduced portion 21c. A step portion 21e is provided on the inner peripheral surface of the cylindrical portion 21b. The receiving part 21 is a connecting pipe 20 having a constant inner diameter and outer diameter.
Is manufactured by expanding the diameter of the end portion of the. As the secondary processing, bulge processing, spatula processing, shell expanding processing and the like are adopted.
該受口部21における円筒状部21bの先端側部分及び該
円筒状部21bの先端側部分に連なる縮径部21cは，内周側
部分を例えば切削加工することにより薄肉にされてい
る。The distal end portion of the cylindrical portion 21b of the receiving portion 21 and the reduced diameter portion 21c connected to the distal end portion of the cylindrical portion 21b are thinned by, for example, cutting the inner peripheral portion.
該受口部21の先端部における湾曲された縮径部21cの
曲率半径Ｒは，接続管20の管本体部22における外径D1お
よびその肉厚ｔにより定められ，例えば，接続管20の管
本体部22における外径D1が100mmの場合，加工性等か
ら，曲率半径Ｒは25mm程度とすることが好ましい。該縮
径部21cの先端開口部21dにおける湾曲角度αは,0度以
上，好ましくは20〜40度程度とされる。The radius of curvature R of the curved reduced diameter portion 21c at the tip of the receiving portion 21 is determined by the outer diameter D 1 of the pipe body 22 of the connecting pipe 20 and its wall thickness t. When the outer diameter D 1 of the tube body 22 is 100 mm, the radius of curvature R is preferably about 25 mm in view of workability and the like. The bending angle α at the tip end opening 21d of the reduced diameter portion 21c is 0 degree or more, preferably about 20 to 40 degrees.
本発明のシール部材10は，第１図に示すように，円筒
状のシール本体部11を有する。該シール本体部11は，前
記受口部21の円筒状部21bおよび縮径部21内に嵌合され
ており，該シール本体部11の外周面は，該シール本体部
11が嵌合された受口部21内周面に整合し得る形状になっ
ている。特に，シール本体部11の外周面にも，受口部21
の縮径部21cの湾曲面に整合する湾曲面が設けられると
ともに，受口部21の円筒状部21bの段部21eに整合する段
部が設けられ，この湾曲面と段部とが受口部21の縮径部
21の湾曲面と円筒状部21bの段部21eとにそれぞれ当接さ
れている。シール部材10を受口部21に嵌合するとき，シ
ール部材10の外面と受口部21の内面とにシール性充填剤
を塗布しておくと，この間のシール性が向上する。The seal member 10 of the present invention has a cylindrical seal body 11 as shown in FIG. The seal body 11 is fitted in the cylindrical portion 21b and the reduced diameter portion 21 of the receiving portion 21, and the outer peripheral surface of the seal body 11 has the outer surface thereof.
It has a shape that can be matched with the inner peripheral surface of the receiving portion 21 into which 11 is fitted. Especially, on the outer peripheral surface of the seal body 11,
A curved surface that matches the curved surface of the reduced-diameter portion 21c is provided, and a stepped portion that matches the stepped portion 21e of the cylindrical portion 21b of the receiving portion 21 is provided, and the curved surface and the stepped portion are received. Reduced part of part 21
The curved surface of 21 and the stepped portion 21e of the cylindrical portion 21b are in contact with each other. When the sealing member 10 is fitted into the receiving portion 21, if a sealing filler is applied to the outer surface of the sealing member 10 and the inner surface of the receiving portion 21, the sealing performance between them will be improved.
該シール本体部11の受口部21における開口部21d側の
端部には，環状の舌片12が一体的に配設されている。該
舌片12は，該シール本体部11の端部から内奥側の内方
へ，先細り状に突出しており，該舌片12の先端縁の内径
は，該シール部材10内へ挿入される挿口部31の外径D
2（従って，受口部21が形成された接続管20の管本体部2
2の外径D1）よりも十分に小さくなっている。従って，
該挿口部31がシール部材10内に挿入されると，該挿口部
31の外周面が舌片12の内周面に密着する。舌片12の先端
は先細り状となり尖っているのが好ましい。該舌片12の
シール本体部11の内周面に対向する外周面には，該シー
ル本体部11内周面側に突出する押圧部13が設けられてい
る。該押圧部13は，例えば断面半円状をした環状の突条
である。該押圧部13は，シール部材10内に挿口部31が挿
入されて，舌片12の内周面に該挿口部31外周面が密着さ
れると，シール本体部11の内周面に押付けられる。該押
圧部13が押付けられるシール本体部11内周面は，内奥側
になるに連れて徐々に縮径したテーパ状になっている。An annular tongue piece 12 is integrally arranged at an end portion of the receiving portion 21 of the seal main body portion 11 on the opening 21d side. The tongue piece 12 protrudes inward from the end of the seal body 11 toward the inner rear side, and the inner diameter of the tip edge of the tongue piece 12 is inserted into the seal member 10. Outer diameter of insertion part 31 D
2 (Therefore, the pipe body 2 of the connecting pipe 20 in which the socket 21 is formed
It is sufficiently smaller than the outer diameter D 1 ) of 2. Therefore,
When the insertion port 31 is inserted into the seal member 10, the insertion port
The outer peripheral surface of 31 closely contacts the inner peripheral surface of the tongue piece 12. The tip of the tongue piece 12 is preferably tapered and pointed. On the outer peripheral surface of the tongue piece 12 facing the inner peripheral surface of the seal main body 11, a pressing portion 13 protruding toward the inner peripheral surface of the seal main body 11 is provided. The pressing portion 13 is, for example, an annular ridge having a semicircular cross section. When the insertion portion 31 is inserted into the seal member 10 and the outer peripheral surface of the insertion portion 31 is brought into close contact with the inner peripheral surface of the tongue piece 12, the pressing portion 13 is attached to the inner peripheral surface of the seal main body portion 11. It is pressed. The inner peripheral surface of the seal body 11 on which the pressing portion 13 is pressed has a tapered shape in which the diameter gradually decreases toward the inner side.
該押圧部13は，シール部材10内に挿入される挿口部31
の外径D2よりも小径の円周上に位置される。該シール部
材10の挿口部31が挿入される側の端面の開口部の内径
は，挿口部31が挿入されない状態で，該受口部21におけ
る開口部21dの内径よりも若干小さくなっている。The pressing portion 13 has an insertion opening 31 that is inserted into the seal member 10.
It is located on a circle with a diameter smaller than the outer diameter D 2 . The inner diameter of the opening of the end surface of the seal member 10 on the side where the insertion opening 31 is inserted is slightly smaller than the inner diameter of the opening 21d in the receiving opening 21 when the insertion opening 31 is not inserted. There is.
このような構成の管継手では，接続管20の受口部21と
接続管30の挿口部31とを接合する場合には，該挿口部31
の外周面には，予め，液状の滑剤が塗布される。そし
て，該挿口部31は，受口部21内に配設されたシール部材
10の舌片12内に挿入される。このとき，挿口部31外周面
に塗布された滑剤により挿口部31は円滑に舌片12内に挿
入されるが，滑剤の一部は舌片12に掻き取られ，シール
部材10の挿口部31が挿入される側の端面の開口部周縁部
に溜まる。また，受口部21とシール部材10との間にシー
ル性充填剤を塗布した場合には，この充填剤が同じ部所
にはみ出して固化40し，水切り効果が向上する。In the pipe joint having such a configuration, when the receiving portion 21 of the connection pipe 20 and the insertion portion 31 of the connection pipe 30 are joined, the insertion portion 31
A liquid lubricant is previously applied to the outer peripheral surface of the. The insertion port 31 is a sealing member disposed in the receiving port 21.
Inserted in 10 tongue pieces 12. At this time, the insertion part 31 is smoothly inserted into the tongue 12 by the lubricant applied to the outer peripheral surface of the insertion part 31, but part of the lubricant is scraped off by the tongue 12 and the seal member 10 is inserted. It collects in the peripheral portion of the opening of the end face on the side where the mouth 31 is inserted. Further, when the sealing filler is applied between the receiving portion 21 and the seal member 10, the filler overflows to the same portion and solidifies 40, thereby improving the draining effect.
挿口部31がシール部材10を貫通すると，第３図に示す
ように，該挿口部31外周面に，舌片12の内周面が密着す
ると共に，舌片12外周面に設けられた押圧部13がシール
本体部11のテーパ状内周面に押付けられる。また，シー
ル部材10は受口部21内に段部21eにより奥側へ移動しな
いように固定されている。これにより，シール本体部11
の外周面に湾曲面が設けられた舌片12配設側の端部が受
口部21の縮径部21cの湾曲形状に沿って移動し，該舌片1
2の内周面全体が挿口部31外周面に密着される。これに
より，シール部材10は，受口部21と該受口部21内に挿入
された挿口部31との間を，確実に液密にシールする。When the insertion opening 31 penetrates the seal member 10, the inner peripheral surface of the tongue piece 12 is closely attached to the outer peripheral surface of the insertion opening portion 31 and is provided on the outer peripheral surface of the tongue piece 12 as shown in FIG. The pressing portion 13 is pressed against the tapered inner peripheral surface of the seal body 11. Further, the seal member 10 is fixed in the receiving portion 21 by the step portion 21e so as not to move inward. As a result, the seal body 11
The end of the tongue 12 on which the curved surface is provided on the outer peripheral surface of the tongue 12 moves along the curved shape of the reduced diameter portion 21c of the receiving portion 21,
The entire inner peripheral surface of 2 is in close contact with the outer peripheral surface of the insertion opening 31. As a result, the seal member 10 ensures a liquid-tight seal between the receiving portion 21 and the inserting portion 31 inserted into the receiving portion 21.
シール部材10の舌片12外周面に設けられた押圧部13の
大きさは，該シール部材10内に挿口部31が挿入された状
態で，該挿口部31内に水等が,1kg・f/cm2未満の低圧で
通流される際に，該押圧部13がシール本体部11内周面に
密接し，かつ，通流水の圧力が1kg・f/cm2以上になれ
ば，該押圧部13によるシール本体部11内周面への押付力
が20％程度上昇するように定められるのが好ましい。The size of the pressing portion 13 provided on the outer peripheral surface of the tongue piece 12 of the seal member 10 is such that water or the like in the insertion portion 31 is 1 kg when the insertion portion 31 is inserted in the seal member 10. · when flowing through at f / cm 2 less than the low pressure, the pressing portion 13 is in close contact with inner peripheral surface of the seal body portion 11, and, if the pressure of the passing water flow is 1 kg · f / cm 2 or more, the It is preferable that the pressing force applied to the inner peripheral surface of the seal body 11 by the pressing portion 13 is increased by about 20%.
該押圧部13の形状は，断面半円状に限定されず，断面
三角形状，断面矩形状等であってもよい。また，環状の
押圧部13は，舌片12の外周面に複数条配設してもよい。The shape of the pressing portion 13 is not limited to the semicircular cross section, and may be a triangular cross section, a rectangular cross section, or the like. Further, a plurality of annular pressing portions 13 may be arranged on the outer peripheral surface of the tongue piece 12.
挿口部31を有する接続管30が金属管，あるいは金属管
内周面を合成樹脂管にて被覆した複合管の場合には，金
属管の腐蝕を防止するために，シール部材10が配設され
た受口部21の内奥部に，第１図に二点鎖線で示す環状の
パッキン50が装着される。該パッキン50は，ゴム等の弾
力性を有する材質にて構成され，該パッキン50にて受口
部21内に挿入された接続管30の挿口部31端面が突き当て
られる。これにより，該接続管30を構成する金属管の腐
蝕が防止される。When the connecting pipe 30 having the insertion port 31 is a metal pipe or a composite pipe in which the inner peripheral surface of the metal pipe is covered with a synthetic resin pipe, the sealing member 10 is provided to prevent corrosion of the metal pipe. An annular packing 50 shown by a chain double-dashed line in FIG. The packing 50 is made of an elastic material such as rubber, and the end face of the insertion portion 31 of the connecting pipe 30 inserted into the receiving portion 21 by the packing 50 is abutted. As a result, corrosion of the metal pipe forming the connecting pipe 30 is prevented.
（発明の効果） 本願の特許請求の範囲第１項記載の発明の管継手用シ
ール部材は，このように，シール本体部の外周面に，受
口部の縮径部の湾曲面に整合する湾曲面が設けられると
ともに，円筒状部の段部に整合する段部が設けられてお
り，且つ，舌片外周面に押圧部が設けらているため，該
シール部材内に，挿口部が挿入された場合に，シール本
体部は受口部内にその段部が円筒状部の段部に当接して
奥側に移動しないように固定され，これにより，シール
本体部の湾曲面が設けられた舌片配設側の端部が受口部
の縮径部の湾曲面に沿って移動し，該舌片の内周面全体
が挿口部の外周面に密着するとともに，舌片の外周面に
設けられた押圧部がシール本体部の内周面に押し付けら
れ，その反発力により舌片を挿口部の外周面に押圧する
とともにシール本体部を受口部の内周面に押圧して，受
口部と挿口部との間を液密にシールできる。従って，両
者の間に水等の液体が溜まることを防止するための特別
な手段を設ける必要がなく，簡潔な構造となる。該押圧
部により舌片内周面の全域が挿口部外周面に密着するた
め，該シール部材と挿口部とは長期にわたって安定的に
水密状態とされる。(Effects of the Invention) The seal member for a pipe joint according to the invention of claim 1 of the present application is thus aligned with the outer peripheral surface of the seal main body portion with the curved surface of the reduced diameter portion of the receiving portion. Since the curved surface is provided, the step portion that matches the step portion of the cylindrical portion is provided, and the pressing portion is provided on the outer peripheral surface of the tongue piece, the insertion portion is provided in the seal member. When inserted, the seal body is fixed in the receiving portion so that the step does not come into contact with the step of the cylindrical portion and does not move to the back side, whereby the curved surface of the seal body is provided. The end on the side where the tongue is disposed moves along the curved surface of the reduced diameter portion of the receiving portion, and the entire inner peripheral surface of the tongue closely contacts the outer peripheral surface of the insertion opening, and The pressing portion provided on the surface is pressed against the inner peripheral surface of the seal body, and the repulsive force presses the tongue against the outer peripheral surface of the insertion opening. The seal body can be pressed against the inner peripheral surface of the receiving portion to seal the space between the receiving portion and the insertion portion in a liquid-tight manner. Therefore, it is not necessary to provide any special means for preventing liquid such as water from accumulating between them, and the structure is simple. Since the entire area of the inner peripheral surface of the tongue is brought into close contact with the outer peripheral surface of the insertion opening by the pressing portion, the sealing member and the insertion opening are kept in a watertight state stably for a long period of time.
本願の特許請求の範囲第２項記載の発明の管継手用シ
ール部材は，更に，受口部の内奥部に装着され，該受口
部内に挿入される挿口部の端面が突き当てられる環状パ
ッキンを具備することにより，接続管を構成する金属管
の挿口部の端面に環状パッキンを密接させることができ
るので，その腐蝕を防止できる。The seal member for a pipe joint according to the invention as set forth in claim 2 of the present application is further attached to the inner back portion of the receiving portion, and the end face of the insertion portion inserted into the receiving portion is abutted. By providing the annular packing, the annular packing can be brought into close contact with the end surface of the insertion portion of the metal pipe forming the connection pipe, so that the corrosion can be prevented.
第１図は本発明の管継手用シール部材を装着した受口部
の縦断面図，第２図はシール部材を取り除いた受口部の
縦断面図，第３図は第１図に示す受口部に挿口部を挿入
した状態の縦断面図である。 10……シール部材,11……シール本体部,12……舌片,13
……押圧部,20,30……接続管,21……受口部,21a……テ
ーパ部,21b……円筒状部,21c……縮径部,21d……開口
部,31……挿口部。FIG. 1 is a vertical cross-sectional view of a receiving part equipped with a sealing member for a pipe joint of the present invention, FIG. 2 is a vertical cross-sectional view of a receiving part without the sealing member, and FIG. 3 is a receiving part shown in FIG. It is a longitudinal cross-sectional view of the state where the insertion part was inserted in the mouth part. 10 …… Seal member, 11 …… Seal body, 12 …… Tongue, 13
...... Pressing part, 20,30 ...... Connecting pipe, 21 …… Receptacle part, 21a …… Taper part, 21b …… Cylindrical part, 21c …… Reducing part, 21d …… Opening part, 31 …… Insertion Mouth.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実公 昭55−48949（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliographic references Sho 55-48949 (JP, Y2)
Claims (2)
面が湾曲面とされるとともに，段部が設けられた受口部
に， 外周面に，受口部の縮径部の湾曲面に整合する湾曲面を
設けられるとともに，受口部の段差に整合する段部が設
けられた弾性を有する円筒状のシール本体部と， 該シール本体部の受口部開口側端部に，該端部から内奥
側内方へ突出するべく配設されており，その内周面が，
該受口部内へ挿入される挿口部外周面に密着する環状の
舌片と， 該舌片の外周面に外方に突出するように配設されてお
り，該舌片の内周面が挿口部外周面に密着した際に，前
記シール本体部内周面に押しつけられる押圧部と， からなるシール部材を設けることを特徴とする管継手の
接続構造。1. A reduced diameter portion is provided at the tip, the inner peripheral surface of the reduced diameter portion is a curved surface, and a receiving portion provided with a step portion and an outer peripheral surface are provided with a reduced diameter of the receiving portion. An elastic cylindrical seal main body provided with a curved surface that matches the curved surface of the diameter portion and a stepped portion that matches the step of the receiving portion, and the opening side of the receiving portion of the seal main body portion It is arranged at the end so as to project inward from the inner end, and its inner peripheral surface is
An annular tongue piece that is closely attached to the outer peripheral surface of the insertion section that is inserted into the receiving section, and an outer peripheral surface of the tongue piece that is disposed so as to project outward, and the inner peripheral surface of the tongue piece is A connecting structure for a pipe joint, comprising: a seal member including: a pressing portion that is pressed against the inner peripheral surface of the seal body when the outer peripheral surface of the insertion opening is closely attached.
挿入される挿口部の側端が突き当てられる環状パッキン
を具備する特許請求の範囲第１項記載の管継手の接続構
造。2. The pipe joint according to claim 1, further comprising an annular packing which is mounted on the inner back portion of the receiving portion and a side end of the insertion portion inserted into the receiving portion abuts. Connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096385A JP2514228B2 (en) | 1988-04-19 | 1988-04-19 | Sealing material for pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096385A JP2514228B2 (en) | 1988-04-19 | 1988-04-19 | Sealing material for pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01269788A JPH01269788A (en) | 1989-10-27 |
| JP2514228B2 true JP2514228B2 (en) | 1996-07-10 |
Family
ID=14163495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63096385A Expired - Fee Related JP2514228B2 (en) | 1988-04-19 | 1988-04-19 | Sealing material for pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514228B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0732278U (en) * | 1993-11-24 | 1995-06-16 | 株式会社竹中工務店 | Different diameter pipe joint |
| JP6019365B2 (en) * | 2013-10-29 | 2016-11-02 | 兵神装備株式会社 | Manufacturing method of discharge system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548949U (en) * | 1978-09-27 | 1980-03-31 |
-
1988
- 1988-04-19 JP JP63096385A patent/JP2514228B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01269788A (en) | 1989-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |