JPH1151279A - Pipe joint - Google Patents
Pipe jointInfo
- Publication number
- JPH1151279A JPH1151279A JP9204571A JP20457197A JPH1151279A JP H1151279 A JPH1151279 A JP H1151279A JP 9204571 A JP9204571 A JP 9204571A JP 20457197 A JP20457197 A JP 20457197A JP H1151279 A JPH1151279 A JP H1151279A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- synthetic resin
- stopper
- face
- tip
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C66/01—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
- B29C66/1226—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 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
- B29C66/52—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
-
- 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
- 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
- B29C66/52294—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being heated
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は管継ぎ手に関する。
特に、合成樹脂管を接続するときに好適な管継ぎ手に関
する。The present invention relates to a pipe joint.
Particularly, the present invention relates to a pipe joint suitable for connecting a synthetic resin pipe.
【0002】[0002]
【従来の技術】従来、合成樹脂管は管継ぎ手を使用して
接続していた。例えば、特開平5−87286号公報に
記載あるように、管継ぎ手の両側に設けられている管受
け口に管を挿入し、接着剤で管継ぎ手と管の端面を接着
したり、あるいは、通電発熱体で合成樹脂製管継ぎ手の
内周面を溶融して、管継ぎ手と管とを融着する。2. Description of the Related Art Conventionally, synthetic resin pipes have been connected using pipe joints. For example, as described in Japanese Patent Application Laid-Open No. 5-87286, a pipe is inserted into pipe receptacles provided on both sides of a pipe joint, and the pipe joint and the end face of the pipe are bonded with an adhesive, or heat is applied to the pipe joint. The inner peripheral surface of the synthetic resin pipe joint is melted by the body, and the pipe joint and the pipe are fused.
【0003】この管継ぎ手には、通常、内周面のほぼ中
央に内方に突出したストッパーが設けられ、両側の端か
ら挿入した管の先端がこのストッパーを越えないように
なっていて、管を管継ぎ手のほぼ中央で接続できるよう
になっている。この際使用する合成樹脂管は、押出機の
環状の金型から溶融した合成樹脂を管状に押し出し、特
公昭35−8739号公報に記載あるように、冷却ジャ
ケットを通して、外側から冷却しながら所定形状に成形
し、冷却した管状体を所定長さに切断して製造してい
た。[0003] The pipe joint is generally provided with a stopper protruding inward substantially at the center of the inner peripheral surface, so that the ends of the pipes inserted from both ends do not exceed the stoppers. Can be connected almost at the center of the pipe joint. The synthetic resin tube used at this time is formed by extruding a molten synthetic resin into a tubular shape from an annular mold of an extruder, passing through a cooling jacket and cooling from the outside as described in JP-B-35-8739. , And the cooled tubular body was cut into a predetermined length to produce the tubular body.
【0004】[0004]
【発明が解決しようとする課題】しかし、図4に示すよ
うに、このように押出機で製造した合成樹脂管100
は、外周面から冷却される結果、管の内側の合成樹脂の
冷却が遅くなり、そのために、内側の合成樹脂が冷却す
る際に収縮し、この冷却の際の収縮によって内側に曲が
ろうとする歪が生ずる。そして、この歪よる変形は、中
央部では顕れないが、先端101では内側に湾曲する。However, as shown in FIG. 4, the synthetic resin tube 100 manufactured by the extruder as described above is used.
Is cooled from the outer peripheral surface, as a result, the cooling of the synthetic resin inside the pipe is delayed, so that the synthetic resin inside contracts when cooling, and tends to bend inward due to the contraction during cooling. Distortion occurs. Then, the deformation due to the distortion does not appear at the center, but curves inward at the tip 101.
【0005】このように、先端101が内側に湾曲して
いると、この先端101を管継ぎ手200の中に挿入し
たとき、図4に示すように、管の先端101の端面とス
トッパー201との間に隙間301ができたり、管継ぎ
手200の内周面との間に隙間302ができる。そし
て、この隙間301、302にゴミ等が蓄積したり、こ
こに微生物が繁殖して、パイプの中の流体の流れが悪く
なるので、度々掃除する必要があり、極めて不便であっ
た。As described above, when the distal end 101 is bent inward, when the distal end 101 is inserted into the pipe joint 200, the end face of the distal end 101 of the pipe and the stopper 201, as shown in FIG. A gap 301 is formed between the gaps and a gap 302 is formed between the gap 301 and the inner peripheral surface of the pipe joint 200. Then, dust or the like accumulates in the gaps 301 and 302, and microorganisms propagate in the gaps, and the flow of the fluid in the pipe deteriorates. Therefore, the pipes need to be cleaned frequently, which is extremely inconvenient.
【0006】特に、下水道に使用する管路の場合では、
下水道の中に浮遊する浮遊物が多く、しかも、微生物が
繁殖し易いので、かかる問題が多く発生する。そこで、
本発明の目的は、パイプの先端が内側に湾曲していて
も、隙間なく接続できる管継ぎ手を提供することであ
る。[0006] In particular, in the case of a pipeline used for sewerage,
Such problems often occur because there are many suspended matters floating in the sewer and microorganisms are easy to propagate. Therefore,
An object of the present invention is to provide a pipe joint that can be connected without a gap even if the tip of the pipe is curved inward.
【0007】[0007]
【課題を解決するための手段】本発明は上記目的を達成
するためになされたものであって、両側端部に管受け口
が設けられ、内周面のほぼ中央に内方に突出したストッ
パーが設けられた管継ぎ手において、前記ストッパー
は、内方に突出している先端が内周面に接続している根
元より次第に幅広に傾斜した側面を有するものである。DISCLOSURE OF THE INVENTION The present invention has been made to achieve the above object, and has a pipe receiving port provided at both ends and a stopper protruding inward substantially at the center of the inner peripheral surface. In the provided pipe joint, the stopper has a side surface whose tip protruding inward is gradually wider and wider than a root connected to the inner peripheral surface.
【0008】(作用)本発明では、ストッパーは、内方
に突出している先端が内周面に接続している根元より次
第に幅広に傾斜した側面を有するから、両側の管受け口
に合成樹脂製管を挿入し、その先端をストッパーに衝突
させると、合成樹脂製管の内側に湾曲した先端の端面と
ストッパーの傾斜した側面とが一致し、この合成樹脂製
管の先端面とストッパーの側面とが密着する。このよう
に先端面とストッパーの側面とが密着した状態になって
合成樹脂製管が管継ぎ手で接続されるので、隙間なく接
続できる。(Operation) In the present invention, the stopper has a side surface which is gradually widened from the root where the tip protruding inward is connected to the inner peripheral surface. Is inserted and the tip collides with the stopper, the end face of the tip curved inside the synthetic resin pipe coincides with the inclined side face of the stopper, and the tip face of this synthetic resin pipe and the side face of the stopper are aligned. In close contact. In this manner, the synthetic resin pipe is connected by the pipe joint with the tip face and the side face of the stopper being in close contact with each other, so that there is no gap.
【0009】[0009]
【発明の実施の形態】図1〜図3は本発明の一実施例を
示すもので、図1は管継ぎ手の一部切欠した状態示す説
明図、図2は合成樹脂製管の先端の状態を示す説明図、
図3は管継ぎ手の使用状態を示す説明図である。1 to 3 show an embodiment of the present invention. FIG. 1 is an explanatory view showing a partially cut-away state of a pipe joint, and FIG. 2 is a state of a front end of a synthetic resin pipe. An explanatory diagram showing
FIG. 3 is an explanatory diagram showing a use state of the pipe joint.
【0010】図1〜図3において、5はポリエチレン製
管からなる合成樹脂製管である。この合成樹脂製管5の
先端51は、製造時の歪みにより、内方に15°湾曲
し、その結果、端面も15°傾斜している。1 to 3, reference numeral 5 denotes a synthetic resin tube made of a polyethylene tube. The distal end 51 of the synthetic resin tube 5 is bent inward by 15 ° due to distortion during manufacturing, and as a result, the end face is also inclined by 15 °.
【0011】1は電気融着用のポリエチレン製の管継ぎ
手であり、この管継ぎ手1は両側端部に管受け口2が設
けられ、内周面のほぼ中央に内方に突出したストッパー
3が設けられている。このストッパー3は、内方に突出
している先端が内周面に接続している根元より次第に幅
広に15°傾斜した側面31を有する。そして、管受け
口2の内周面近傍と、ストッパー3の側面近傍にはニク
ロム線からなるヒーター4が埋設されていて、このニク
ロム線からなるヒーター4が外周面に設けられている端
子6に接続されている。Reference numeral 1 denotes a pipe joint made of polyethylene for electrofusion. The pipe joint 1 is provided with a pipe receiving port 2 at both ends and a stopper 3 protruding inward at substantially the center of the inner peripheral surface. ing. The stopper 3 has a side surface 31 whose tip protruding inward is gradually widened at an angle of 15 ° from a root connected to the inner peripheral surface. A heater 4 made of a nichrome wire is embedded near the inner peripheral surface of the pipe receiving port 2 and near the side surface of the stopper 3, and the heater 4 made of the nichrome wire is connected to a terminal 6 provided on the outer peripheral surface. Have been.
【0012】次に、この管継ぎ手1を使用して合成樹脂
製管5を接続する方法および作用について説明する。管
継ぎ手1の両側の管受け口2に合成樹脂管5を、先端5
1がストッパー3の側面31に衝突するまで挿入する。
すると、合成樹脂製管5の内側に湾曲した先端51の端
面とストッパー3の傾斜した側面31とが一致し、この
合成樹脂製管5の先端51の端面とストッパーの側面3
1とが密着する。Next, a method and an operation for connecting the synthetic resin pipe 5 using the pipe joint 1 will be described. A synthetic resin pipe 5 is inserted into the pipe receptacles 2 on both sides of the
1 until it collides with the side surface 31 of the stopper 3.
Then, the end face of the tip 51 curved inside the synthetic resin pipe 5 coincides with the inclined side face 31 of the stopper 3, and the end face of the tip 51 of the synthetic resin pipe 5 matches the side face 3 of the stopper.
1 adheres closely.
【0013】次に、端子6からヒーター4に電流を通し
て、内周面とストッパー3の側面を溶融させる。する
と、合成樹脂製管5の先端部外周面と先端51の端面と
が、管継ぎ手1の内周面とストッパー3の側面31とに
融着する。このように先端51面とストッパー3の側面
31とが密着した状態になって合成樹脂製管が管継ぎ手
で接続されるので、隙間なく接続できる。Next, an electric current is passed from the terminal 6 to the heater 4 to melt the inner peripheral surface and the side surface of the stopper 3. Then, the outer peripheral surface of the distal end portion of the synthetic resin pipe 5 and the end surface of the distal end 51 are fused to the inner peripheral surface of the pipe joint 1 and the side surface 31 of the stopper 3. As described above, the front end 51 and the side surface 31 of the stopper 3 are in close contact with each other, and the synthetic resin pipe is connected by the pipe joint.
【0014】このようにして、隙間なく接続できるの
で、この継ぎ手部分にゴミが蓄積したり、微生物が繁殖
することない。従って、長期間使用していても、合成樹
脂製管5の中を流体が流れ難くなることなく、そのた
め、長期間掃除する必要がなくなり便利である。In this way, the connection can be made without any gaps, so that no garbage accumulates at this joint portion and no microorganisms propagate. Therefore, even if the fluid is used for a long time, the fluid does not easily flow through the synthetic resin pipe 5, and therefore, it is not necessary to clean the fluid for a long time, which is convenient.
【0015】[0015]
【発明の効果】本発明では、ストッパーは、内方に突出
している先端が内周面に接続している根元より次第に幅
広に傾斜した側面を有するから、両側の管受け口に合成
樹脂製管を挿入し、その先端をストッパーに衝突させる
と、この合成樹脂製管の先端面とストッパーの側面とが
密着する。このように先端面とストッパーの側面とが密
着した状態になって合成樹脂製管が管継ぎ手で接続され
るので、隙間なく接続できる。このように、隙間なく接
続でるので、この継ぎ手部分にゴミが蓄積したり、微生
物が繁殖することない。従って、長期間使用していて
も、合成樹脂製管の中を流体が流れ難くなることなく、
そのため、長期間掃除する必要がなくなり便利である。According to the present invention, since the stopper has a side face whose tip protruding inward is gradually widened from the root connected to the inner peripheral surface, the synthetic resin pipe is provided in the pipe receiving openings on both sides. When it is inserted and its tip collides with the stopper, the tip face of the synthetic resin tube and the side face of the stopper come into close contact. In this manner, the synthetic resin pipe is connected by the pipe joint with the tip face and the side face of the stopper being in close contact with each other, so that there is no gap. As described above, since the connection is made without any gap, there is no accumulation of refuse in this joint portion or propagation of microorganisms. Therefore, even if it is used for a long time, the fluid does not easily flow through the synthetic resin pipe,
This eliminates the need for long-term cleaning, which is convenient.
【図1】本発明の一実施例を示すもので、図1は管継ぎ
手の一部切欠した状態示す説明図である。FIG. 1 shows an embodiment of the present invention, and FIG. 1 is an explanatory view showing a partially cut-off state of a pipe joint.
【図2】合成樹脂製管の先端の状態を示す説明図であ
る。FIG. 2 is an explanatory diagram showing a state of a distal end of a synthetic resin pipe.
【図3】管継ぎ手の使用状態を示す説明図である。FIG. 3 is an explanatory diagram showing a use state of a pipe joint.
【図4】従来の管継ぎ手の使用状態を示す説明図であ
る。FIG. 4 is an explanatory view showing a use state of a conventional pipe joint.
1 管継ぎ手 2 管受け口 3 ストッパー 31 側面 4 ヒーター 5 管(合成樹脂製管) DESCRIPTION OF SYMBOLS 1 Pipe joint 2 Pipe socket 3 Stopper 31 Side surface 4 Heater 5 pipe (synthetic resin pipe)
Claims (1)
のほぼ中央に内方に突出したストッパーが設けられた管
継ぎ手において、前記ストッパーは、内方に突出してい
る先端が内周面に接続している根元より次第に幅広に傾
斜した側面を有することを特徴とする管継ぎ手。1. A pipe joint in which a pipe receiving port is provided at both end portions and a stopper protruding inward is provided substantially at the center of the inner peripheral surface. A pipe joint characterized in that it has a side surface which is gradually wider than a root connected to the surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9204571A JPH1151279A (en) | 1997-07-30 | 1997-07-30 | Pipe joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9204571A JPH1151279A (en) | 1997-07-30 | 1997-07-30 | Pipe joint |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1151279A true JPH1151279A (en) | 1999-02-26 |
Family
ID=16492684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9204571A Pending JPH1151279A (en) | 1997-07-30 | 1997-07-30 | Pipe joint |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1151279A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009033603A1 (en) * | 2007-09-07 | 2009-03-19 | Egeplast Werner Strumann Gmbh & Co. Kg | Method for welding plastic pipes together |
JPWO2021149832A1 (en) * | 2020-01-24 | 2021-07-29 | ||
CN114466987A (en) * | 2019-09-30 | 2022-05-10 | 积水化学工业株式会社 | Electric melting joint |
-
1997
- 1997-07-30 JP JP9204571A patent/JPH1151279A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009033603A1 (en) * | 2007-09-07 | 2009-03-19 | Egeplast Werner Strumann Gmbh & Co. Kg | Method for welding plastic pipes together |
CN114466987A (en) * | 2019-09-30 | 2022-05-10 | 积水化学工业株式会社 | Electric melting joint |
JPWO2021149832A1 (en) * | 2020-01-24 | 2021-07-29 | ||
WO2021149832A1 (en) * | 2020-01-24 | 2021-07-29 | 積水化学工業株式会社 | Electrically fused joint and fusing method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1999051895A1 (en) | Pipe connection gasket | |
JPH1151279A (en) | Pipe joint | |
JPH0875076A (en) | Piping | |
JPH06265082A (en) | Electric fusion coupling | |
JP2003097784A (en) | Fusion joint | |
JP2001268765A (en) | Method of connecting corrugated pipes | |
JP2543891Y2 (en) | Electric fusion joint of plastic tube | |
JPH04171392A (en) | Electrically fused pipe joint | |
JP2002144433A (en) | Sleeve tube and connecting structure for piping material using this sleeve tube to joint | |
JPH029174Y2 (en) | ||
JPH1026270A (en) | Socket structure with rubber ring mounting groove and manufacture thereof | |
JP3240885B2 (en) | Electric fusion joint | |
JPH11170372A (en) | Electrically welded branch joint | |
JPH0726637Y2 (en) | Welding joint | |
JPH08145268A (en) | Length adjusting coupling for electric fusion | |
JP3209838B2 (en) | Fusion joining method of pipe material | |
JP2837730B2 (en) | Method for fusing thermoplastic resin tube and heater | |
JPH06147387A (en) | Pipe coupling for two-layer pipe | |
JPH07323480A (en) | Connection of pipe member | |
JP2864507B2 (en) | Plastic pipe fusion joints | |
JP2003164421A (en) | Method of connecting endoscope flexible tube to annular coupling member | |
JPH10185067A (en) | Electric fusion joint | |
JPH08240294A (en) | Branched joint for electrically fused connection | |
JP2002213677A (en) | Connecting method for piping material of thermoplastic resin | |
JP2570652Y2 (en) | Electric fusion joint |