JPH0114862B2 - - Google Patents

Info

Publication number
JPH0114862B2
JPH0114862B2 JP57034315A JP3431582A JPH0114862B2 JP H0114862 B2 JPH0114862 B2 JP H0114862B2 JP 57034315 A JP57034315 A JP 57034315A JP 3431582 A JP3431582 A JP 3431582A JP H0114862 B2 JPH0114862 B2 JP H0114862B2
Authority
JP
Japan
Prior art keywords
elastic body
resin
tube
mold
resin tube
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
Application number
JP57034315A
Other languages
Japanese (ja)
Other versions
JPS58151214A (en
Inventor
Hisao Morimoto
Hiroshi Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP57034315A priority Critical patent/JPS58151214A/en
Publication of JPS58151214A publication Critical patent/JPS58151214A/en
Publication of JPH0114862B2 publication Critical patent/JPH0114862B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B29D23/003—Pipe joints, e.g. straight 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • 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
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • 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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/01—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
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre 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
    • B29C66/01—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
    • 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
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • 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
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73755—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Description

【発明の詳細な説明】 この発明は、一定外径の弾性体を備えた樹脂管
の製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a resin pipe provided with an elastic body having a constant outer diameter.

熱硬化性樹脂管を接続するためには、一方の管
端に受口部として外径の大きな短管を固定するの
が普通である。しかし、樹脂管に直接短管を固定
したのでは、固定部に可撓性がないので、外力が
加えられたときに亀裂や剥離を生ずる。そこで、
樹脂管と短管との間に、環状のゴム状弾性体を介
在させることが提案された。このような提案の１
つとして、特公昭52−50069号公報は、樹脂管の
外側に短管を内装した外型を隙間をおいてはめ、
隙間に弾性体を挿入して接着する方法を記載して
いる。また、短管としては未硬化のものを用い、
外型を縮型して圧縮状態で短管を硬化させること
を奨めている。 In order to connect thermosetting resin pipes, it is common to fix a short pipe with a large outer diameter to one end of the pipe as a socket. However, if the short tube is directly fixed to the resin tube, the fixed portion is not flexible, so cracks or peeling occur when external force is applied. Therefore,
It has been proposed to interpose an annular rubber-like elastic body between the resin pipe and the short pipe. One such proposal
As one example, Japanese Patent Publication No. 52-50069 discloses that an outer mold with a short tube inside is placed on the outside of a resin tube with a gap,
It describes how to insert an elastic body into the gap and adhere it. In addition, use uncured short pipes,
It is recommended to shrink the outer mold and harden the short tube under compression.

しかし、この公報記載の方法によるときは、熱
硬化性樹脂管が硬化した後に施工しなければなら
ないので、時間がかかるという欠点があつた。ま
た、熱硬化性樹脂管は寸法誤差が大きいものであ
るから、端部の外径を正確にするために研削する
必要があり、手間がかかるという欠点があつた。
さらに、樹脂管と短管との間に接着剤を塗布した
弾性体を挿入するので、作業が繁雑だという欠点
があつた。その上に、短管として硬化したものを
用いるときは、接着部の強度および気密性が劣
り、未硬化のものを用いるときは、外型への積層
が繁雑であり、硬化に時間がかかるという欠点が
あつた。しかも、得られたものは、一定管径の管
との接続にだけしか用いられないから、用途の狭
いものであつた。 However, when using the method described in this publication, the construction had to be carried out after the thermosetting resin pipe had hardened, so it had the disadvantage of being time consuming. Further, since the thermosetting resin pipe has large dimensional errors, it is necessary to grind the end portion to make the outer diameter accurate, which is a disadvantage in that it is time-consuming.
Furthermore, since an elastic body coated with adhesive is inserted between the resin tube and the short tube, there is a drawback that the work is complicated. In addition, when a cured short tube is used, the strength and airtightness of the adhesive part is inferior, and when an uncured tube is used, lamination to the outer mold is complicated and it takes time to harden. There were flaws. Furthermore, the resulting product was of limited use because it could only be used to connect pipes of a fixed diameter.

この発明者は、上記の欠点を改善しようと企て
た。そして、まず、樹脂管に弾性体と短管とを同
時に固定せず、弾性体だけを固定したものを作つ
ておくと、使用時に短管または管径の異なる長
管、壁面等に接続できるので、用途が拡大される
ことに気付いた。また、弾性体だけを固定したも
のを作るには、弾性体の外径を正確に仕上げなけ
ればならないが、そのためには、熱硬化性樹脂管
が未硬化の間に弾性体をはめ、所定内径をもつた
外型を当接して樹脂を硬化させるのが、有利なこ
とに気付いた。またこのようにすると、樹脂管の
硬化を待つて施工する必要がないので、時間の節
約になり、外周面を研削する必要がないので、手
間が省け、その上に、接着強度および気密性もよ
くなることに気付いた。さらに、弾性体として、
両端を斜めに切断した帯状物を用いると、樹脂管
にはめるのが容易となることに気付いた。この発
明は、このような知見に基いてなされたものであ
る。 The inventor set out to remedy the above-mentioned drawbacks. First, if you make a resin tube with only the elastic body fixed instead of fixing both the elastic body and the short pipe at the same time, you can connect it to a short pipe, a long pipe with a different diameter, a wall surface, etc. during use. , I realized that the applications could be expanded. In addition, in order to make a product in which only the elastic body is fixed, the outer diameter of the elastic body must be precisely finished, but in order to do so, the elastic body must be fitted while the thermosetting resin tube is uncured, and the specified inner diameter It has been found that it is advantageous to harden the resin by abutting an outer mold with a . In addition, by doing this, there is no need to wait for the resin pipe to harden before installation, which saves time, and there is no need to grind the outer circumferential surface, which saves time and effort.In addition, it improves adhesive strength and airtightness. I noticed that it was getting better. Furthermore, as an elastic body,
It was found that using a strip with both ends cut diagonally makes it easier to fit it into a resin tube. This invention was made based on such knowledge.

すなわち、この発明は、内型の周りに成形され
た熱硬化性樹脂管が未硬化の間に、樹脂管の外周
面に帯状弾性体を巻回して、両端をつきあわせ、
弾性体の外側に弾性体の外径よりやや小さい所定
内径をもつた外型を当接し、外型の所定内径を保
持したまま樹脂管を硬化させ、内型と外型を除去
することを特徴とする、一定外径の弾性体を備え
た樹脂管の製造法である。 That is, in the present invention, while the thermosetting resin tube molded around the inner mold is not cured, a band-shaped elastic body is wound around the outer circumferential surface of the resin tube, and both ends are brought into contact with each other.
The feature is that an outer mold with a predetermined inner diameter slightly smaller than the outer diameter of the elastic body is brought into contact with the outside of the elastic body, the resin tube is cured while the predetermined inner diameter of the outer mold is maintained, and the inner mold and the outer mold are removed. This is a method of manufacturing a resin pipe equipped with an elastic body having a constant outer diameter.

この発明に係る製造法の実施態様を、図面に基
いて説明すると次の通りである。第１図ないし第
３図は、この発明の製造面を説明する一部切欠正
面図である。第４図および第５図は、この発明で
用いる弾性体の一例を示す部分断面図である。第
６図および第７図は、この発明において外型をは
めた状態を示す断面図である。第８図ないし第１
０図は、この発明の方法により製造した弾性体を
備えた樹脂管の使用方法を説明する断面図であ
る。 An embodiment of the manufacturing method according to the present invention will be described below based on the drawings. 1 to 3 are partially cutaway front views illustrating manufacturing aspects of the present invention. 4 and 5 are partial cross-sectional views showing an example of the elastic body used in the present invention. FIG. 6 and FIG. 7 are cross-sectional views showing a state in which an outer mold is fitted in the present invention. Figures 8 to 1
FIG. 0 is a sectional view illustrating a method of using a resin pipe provided with an elastic body manufactured by the method of the present invention.

この発明の方法では、まず、第１図に示すよう
に、芯棒１０が挿入された内型１の周りに成形さ
れた、まだ未硬化の状態にある熱硬化性樹脂管２
の外周面に、帯状弾性体３を巻回する。弾性体３
は、図示したように、長手方向における両端が斜
めに切断されており、樹脂管２に巻回したとき両
端が丁度つきあわされるようになつている。この
ように弾性体３の両端を斜めに切断することによ
り、巻回したとき容易に両端をつきあわせること
ができる。次に、弾性体３の両端をつきあわせた
後、第２図に示すように、外側から外型４を当接
する。外型４は、完全に閉じた時の内径が弾性体
の外径よりやや小さく、予じめ定められた値であ
るものとする。適当な手段により、外型４の内径
が所定の値になるまで締めつけると、弾性体３が
樹脂管２に密着する。この状態で外型４を支持
し、未硬化の樹脂管２を硬化させる。その後、芯
棒１０と内型１と外型４を取除くと、第３図に示
すように、一定外径の弾性体３を備えた樹脂管が
得られる。 In the method of the present invention, first, as shown in FIG.
A band-shaped elastic body 3 is wound around the outer circumferential surface of. Elastic body 3
As shown in the figure, both ends in the longitudinal direction are cut diagonally, so that when wound around the resin tube 2, the ends are just brought together. By cutting both ends of the elastic body 3 diagonally in this way, both ends can be easily brought together when wound. Next, after both ends of the elastic body 3 are brought into contact with each other, as shown in FIG. 2, an outer mold 4 is brought into contact with the elastic body 3 from the outside. The outer mold 4 has an inner diameter slightly smaller than the outer diameter of the elastic body when completely closed, and has a predetermined value. When the outer mold 4 is tightened by appropriate means until the inner diameter reaches a predetermined value, the elastic body 3 comes into close contact with the resin tube 2. In this state, the outer mold 4 is supported and the uncured resin pipe 2 is cured. Thereafter, when the core rod 10, the inner mold 1, and the outer mold 4 are removed, a resin tube provided with an elastic body 3 having a constant outer diameter is obtained, as shown in FIG.

上記熱硬化性樹脂管２としては、ガラス繊維の
ような繊維材料を含んだものが適当である。また
樹脂管２は、単層であつても、２層以上の複層で
あつてもよい。被層の場合、外層が繊維材料を含
んだ樹脂であり、内層がレジンコンクリートであ
ることが望ましい。熱硬化性樹脂としては、ポリ
エステル樹脂、エポキシ樹脂、フエノール樹脂等
が繁用される。なお、樹脂管２としては、バツチ
式で作られたものまたは連続式で作られたものの
何れをも用いることができる。バツチ式で作られ
たものである場合は、弾性体３を一端または両端
に巻回し、連続式で作られたものである場合に
は、後で切断すべき線の近傍に弾性体３を巻回す
る。 As the thermosetting resin tube 2, one containing a fiber material such as glass fiber is suitable. Moreover, the resin pipe 2 may be a single layer or a multilayer of two or more layers. In the case of a covering layer, it is desirable that the outer layer is a resin containing a fiber material and the inner layer is a resin concrete. As the thermosetting resin, polyester resin, epoxy resin, phenol resin, etc. are often used. In addition, as the resin pipe 2, either one made in batch type or one made in continuous type can be used. If it is made by batch type, the elastic body 3 is wound around one or both ends, and if it is made by continuous type, the elastic body 3 is wound near the line to be cut later. Turn.

帯状弾性体３としては、天然ゴム、合成ゴム等
の弾性材料で帯状に製されたものであつてもよい
が、弾性材料製の短管状物を切断して帯状にした
ものが好ましい。弾性体３は、その長手方向にお
ける両端が垂直に切断されているものであつても
よいが、第１図に示すように両端が斜めに切断さ
れているものが好ましい。樹脂管２側に向けられ
る弾性体面は、長手方向に沿つて延びる多数の突
条３１を備えていることが望ましい。弾性体３の
切断面は、樹脂管の外周面に直交する平面であつ
てもよいが、第４図に示すように傾斜していても
よく、第５図に示すように段部を含んでいてもよ
い。弾性体の厚みは、樹脂管に巻回したときの外
径が外型４の内径より僅かに大きくなるものと
し、管端側へ厚みを減少するテーパーを備えてい
てもよい。弾性体の当接面は、樹脂管の未硬化樹
脂により接着するが、接着剤を塗布して接着効果
を上げてもよい。 The band-shaped elastic body 3 may be made of an elastic material such as natural rubber or synthetic rubber into a band shape, but it is preferable to cut a short tube made of an elastic material into a band shape. The elastic body 3 may have both ends in its longitudinal direction cut vertically, but preferably has both ends cut diagonally as shown in FIG. It is desirable that the elastic body surface facing the resin tube 2 side has a large number of protrusions 31 extending along the longitudinal direction. The cut surface of the elastic body 3 may be a plane perpendicular to the outer circumferential surface of the resin tube, or may be inclined as shown in FIG. 4, or may include a stepped portion as shown in FIG. You can stay there. The thickness of the elastic body is such that the outer diameter when wound around the resin tube is slightly larger than the inner diameter of the outer mold 4, and the elastic body may have a taper to reduce the thickness toward the tube end. The contact surface of the elastic body is bonded by the uncured resin of the resin tube, but an adhesive may be applied to improve the bonding effect.

外型４としては、第６図に示すように、リング
を１個所で切開き、切れ目の両側に舌片４１を付
設して、舌片４１同志をボルトで締めつけるよう
にしたもの、または、第７図に示すように、リン
グを２個所以上で切開いて複数片に分割し、切れ
目に舌片４１を付設してボルトで接合できるよう
にしたものが用いられる。外型４の内径は、弾性
体の外径より僅かに小さいものとするが、その差
は0.2ないし２mm程度が適当である。なお、外型
４の重みにより樹脂管２の肉厚が偏ることを防ぐ
ために、内型１に支持具１１を付設して外型４を
支持してもよい。 As shown in FIG. 6, the outer mold 4 may be one in which a ring is cut in one place, tongue pieces 41 are attached on both sides of the cut, and the tongue pieces 41 are tightened together with bolts, or As shown in FIG. 7, a ring is used in which the ring is cut at two or more places and divided into a plurality of pieces, and a tongue piece 41 is attached to the cut so that they can be joined with bolts. The inner diameter of the outer mold 4 is slightly smaller than the outer diameter of the elastic body, and the difference is suitably about 0.2 to 2 mm. In addition, in order to prevent the thickness of the resin tube 2 from becoming uneven due to the weight of the outer mold 4, a support 11 may be attached to the inner mold 1 to support the outer mold 4.

この発明の方法により得られる弾性体を備えた
樹脂管に、受口用の短管を固定するには、例えば
次のようにする。まず、第８図に示すように、受
口用の短管５の一端にガイド６を被せる。短管５
としては、内径が弾性体３の外径よりやや小さい
ものを用いる。ガイド６は、一端側が短管５の外
径に見合う内径をもち、他端側がテーパー面とさ
れ、外側の端が弾性体３の外径より大きく、内側
の端が短管５の内径にほぼ等しいものを用いる。
なお、５１は接続用シールゴムである。短管５の
内周面に予じめ接着剤（エポキシ系、ウレタン
系、シアノアクリレート等）を塗布し、ガイド６
のテーパー面側から弾性体３を備えた樹脂管２を
挿入し、樹脂管２の先端を短管５内に差込んだ
後、ガイド６を除去する。そうすると、第９図に
示すように、弾性体３が圧縮された状態で接着さ
れるので、接着部が気密かつ強固になる。なお、
短管５としては、第１０図に示すように、管径が
一端側で拡大されたものを用いることができ、曲
管も用いることができる。 To fix a short pipe for a socket to a resin pipe provided with an elastic body obtained by the method of the present invention, for example, the following procedure is performed. First, as shown in FIG. 8, a guide 6 is placed over one end of the short pipe 5 for the socket. Short tube 5
As for the elastic body 3, one whose inner diameter is slightly smaller than the outer diameter of the elastic body 3 is used. The guide 6 has one end with an inner diameter matching the outer diameter of the short tube 5, and the other end with a tapered surface, the outer end is larger than the outer diameter of the elastic body 3, and the inner end is approximately the same as the inner diameter of the short tube 5. Use the equivalent.
Note that 51 is a sealing rubber for connection. Apply an adhesive (epoxy, urethane, cyanoacrylate, etc.) to the inner circumferential surface of the short pipe 5 in advance, and attach the guide 6.
After inserting the resin tube 2 provided with the elastic body 3 from the tapered surface side and inserting the tip of the resin tube 2 into the short tube 5, the guide 6 is removed. Then, as shown in FIG. 9, since the elastic body 3 is bonded in a compressed state, the bonded portion becomes airtight and strong. In addition,
As the short tube 5, as shown in FIG. 10, a tube whose diameter is enlarged at one end can be used, and a curved tube can also be used.

この発明の方法によると、熱硬化性樹脂管が未
硬化の間に弾性体を固定するので、樹脂管の硬化
を待つてから固定する場合に較べて、時間の節約
になる。また、未硬化の間に固定するので、樹脂
管の研削を行なう必要がない。さらに、未硬化の
間に帯状弾性体を巻回し、弾性体の外径よりやや
小さい内径をもつた外型を当接するので、弾性体
と樹脂管がよく密着する。そして、弾性体として
は、帯状物を用いるので、環状物を用いる場合に
較べて樹脂管にはめるのが容易である。上記のよ
うに、この発明は、すぐれた効果を有する。 According to the method of the present invention, since the elastic body is fixed while the thermosetting resin tube is not cured, time is saved compared to the case where the elastic body is fixed after waiting for the resin tube to harden. Furthermore, since the resin tube is fixed while it is not cured, there is no need to grind the resin tube. Further, since the band-shaped elastic body is wound while the elastic body is not cured and an outer mold having an inner diameter slightly smaller than the outer diameter of the elastic body is brought into contact with the elastic body, the elastic body and the resin tube are in close contact with each other. Furthermore, since a band-shaped material is used as the elastic body, it is easier to fit it into the resin tube compared to the case where a ring-shaped material is used. As mentioned above, this invention has excellent effects.

【図面の簡単な説明】[Brief explanation of drawings]

第１図ないし第３図は、この発明の製造法を説
明する一部切欠正面図、第４図および第５図は、
この発明で用いる弾性体の一例を示す断面図、第
６図および第７図は、この発明において外型をは
めた状態を示す断面図、第８図ないし第１０図
は、この発明の方法により製造した弾性体を備え
た樹脂管の使用方法を説明する断面図である。 符号の説明、１……内型、２……樹脂管、３…
…弾性体、４……外型、５……短管、６……ガイ
ド、１１……支持具、３１……突条、４１……舌
片、５１……シールゴム。 1 to 3 are partially cutaway front views explaining the manufacturing method of the present invention, and FIGS. 4 and 5 are
6 and 7 are cross-sectional views showing an example of the elastic body used in the present invention, and FIGS. 8 to 10 are cross-sectional views showing the state in which an outer mold is fitted in the present invention. FIG. 3 is a cross-sectional view illustrating a method of using a resin pipe provided with a manufactured elastic body. Explanation of symbols, 1...Inner mold, 2...Resin pipe, 3...
. . . Elastic body, 4 .

Claims (1)

【特許請求の範囲】[Claims] １ 内型の周りに成形された熱硬化性樹脂管が未
硬化の間に、樹脂管の外周面に帯状弾性体を巻回
して、両端をつきあわせ、弾性体の外側に弾性体
の外径よりやや小さい所定内径をもつた外型を当
接し、外型の所定内径を保持したまま樹脂管を硬
化させ、内型と外型を除去することを特徴とす
る、一定外径の弾性体を備えた樹脂管の製造法。1. While the thermosetting resin tube molded around the inner mold is not yet cured, wrap a band-shaped elastic body around the outer peripheral surface of the resin tube, bring both ends together, and attach the outer diameter of the elastic body to the outside of the elastic body. An elastic body with a constant outer diameter is made by contacting an outer mold with a predetermined inner diameter slightly smaller than that of the outer mold, hardening the resin tube while maintaining the predetermined inner diameter of the outer mold, and removing the inner mold and the outer mold. A method for manufacturing resin pipes.
JP57034315A 1982-03-03 1982-03-03 Manufacture of resin tube equipped with elastic member having fixed outer diameter Granted JPS58151214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57034315A JPS58151214A (en) 1982-03-03 1982-03-03 Manufacture of resin tube equipped with elastic member having fixed outer diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57034315A JPS58151214A (en) 1982-03-03 1982-03-03 Manufacture of resin tube equipped with elastic member having fixed outer diameter

Publications (2)

Publication Number Publication Date
JPS58151214A JPS58151214A (en) 1983-09-08
JPH0114862B2 true JPH0114862B2 (en) 1989-03-14

Family

ID=12410724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57034315A Granted JPS58151214A (en) 1982-03-03 1982-03-03 Manufacture of resin tube equipped with elastic member having fixed outer diameter

Country Status (1)

Country Link
JP (1) JPS58151214A (en)

Also Published As

Publication number Publication date
JPS58151214A (en) 1983-09-08

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