NO136424B - - Google Patents

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Publication number
NO136424B
NO136424B NO69569A NO56969A NO136424B NO 136424 B NO136424 B NO 136424B NO 69569 A NO69569 A NO 69569A NO 56969 A NO56969 A NO 56969A NO 136424 B NO136424 B NO 136424B
Authority
NO
Norway
Prior art keywords
sleeve
ring
rib
synthetic plastic
lip
Prior art date
Application number
NO69569A
Other languages
Norwegian (no)
Other versions
NO136424C (en
Inventor
K Mcdonald
Original Assignee
Bartol Plastics Limited
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 Bartol Plastics Limited filed Critical Bartol Plastics Limited
Publication of NO136424B publication Critical patent/NO136424B/no
Publication of NO136424C publication Critical patent/NO136424C/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/08Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
    • F16L47/10Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket the sealing rings being maintained in place by additional means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/261Moulds having tubular mould cavities
    • B29C45/2612Moulds having tubular mould cavities for manufacturing tubular articles with an annular groove
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/665Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using shrinking during cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52291Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52296Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344Joining 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/02Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/03Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/24Pipe joints or couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Description

Foreliggende oppfinnelse angår en fremgangsmåte ved fremstilling av koblingsmuffe for syntetiske plastrør, som mer og mer brukes i kloakker, avløpsrør og kabelkanaler. The present invention relates to a method for the production of coupling sleeves for synthetic plastic pipes, which are increasingly used in sewers, drainage pipes and cable ducts.

En syntetisk plastrørkoblingsmuffe kan formes med en endedel av muffen med en større indre og ytre diameter enn den større lengde av muffen, og den forstørrede del inneholder en forseglingsring som holdes på plass av en syntetisk plastring, og hvor denne plastring holdes på plass i den forstørrede del ved en leppe som strekker seg innover i den forstørrede del og er dannet ved å ven-de innover den ytre ende av den forstørrede del efter innsetning av holderingen, og fordelaktig efter at forseglingsringen også er innført. A synthetic plastic pipe coupling sleeve may be formed with an end portion of the sleeve having a larger inner and outer diameter than the greater length of the sleeve, and the enlarged portion contains a sealing ring held in place by a synthetic plastic ring, and where this plastic ring is held in place in the enlarged part by a lip which extends inwards into the enlarged part and is formed by turning the outer end of the enlarged part inwards after the insertion of the retaining ring, and advantageously after the sealing ring has also been inserted.

Oppfinnelsen angår følgelig en fremgangsmåte,ved fremstilling av syntetisk plastrørkoblingsmuffe med en utvidet endedel inneholdende en forseglingsring som holdes på plass av en syntetisk plastring, og hvor plastringen selv holdes på plass i den for-størrede endedel ved en integrert ribbe eller leppe som rager innover fra den forstørrede endedel, og fremgangsmåten er særpreget ved at muffen sprøytestøpes under anvendelse av en ikke-kollapsbar kjerne med et lite spor for å danne den forstørrede del av muffen og ribben eller leppen, kjernen trekkes ut fra den nydannede muffe, og før muffen har tid til å avkjøle og krympe innsettes holderingen i den forstørrede del mens det er en lett tilpasning, innenfor ribben eller leppen, for holderingen som blir holdt til-bake av ribben eller leppen når muffen er blitt avkjølt og krympet. The invention therefore relates to a method for the production of a synthetic plastic pipe coupling sleeve with an enlarged end part containing a sealing ring which is held in place by a synthetic plastic ring, and where the plastic ring itself is held in place in the enlarged end part by an integrated rib or lip projecting inwards from the enlarged end portion, and the method is characterized in that the sleeve is injection molded using a non-collapsible core with a small groove to form the enlarged portion of the sleeve and the rib or lip, the core is pulled out from the newly formed sleeve, and before the sleeve has time to cool and shrink, the retaining ring is inserted into the enlarged portion while there is a slight fit, within the rib or lip, for the retaining ring to be held back by the rib or lip when the sleeve has been cooled and shrunk.

Forseglingsringen kan være en O-ring, eller en forseglingsring med et hvilket som helst annet tverrsnitt, for eksempel en D-ring. Ved en O-ring kan den aksiale tykkelse av den syntetiske plastring og O-ringen tilsammen utgjøre lengden av innsiden av den utvidede del av muffen, eller de kan utgjøre noe mindre slik at det blir mer plass hvori forseglingsringen kan sammentrykkes. The sealing ring can be an O-ring, or a sealing ring of any other cross-section, for example a D-ring. In the case of an O-ring, the axial thickness of the synthetic plastic ring and the O-ring together can make up the length of the inside of the extended part of the sleeve, or they can make up somewhat less so that there is more space in which the sealing ring can be compressed.

Fortrinnsvis består ribben av et nebb ved den ytre ende av den utvidede del, men det faller innenfor oppfinnelsen å anvende en ribbe istedenfor eller i tillegg til nebbet, og anbragt i en avstand fra den ytre ende av den utvidede del, og den syntetiske plastring kan være forsynt med et utvendig spor for å passe over ribben. Den utvidede del av muffen kan være tilstrekkelig lang til å oppta to forseglingsringer som holdes på plass av minst én syntetisk plastring som holdes på plass, av ribben eller nebbet, og med forseglingsringene skilt fra hverandre ved nok en syntetisk plastring, idet nok en ribbe kan være anbragt mellom den ytre forseglingsring og den indre syntetiske plastring. Preferably, the rib consists of a beak at the outer end of the extended part, but it falls within the invention to use a rib instead of or in addition to the beak, and placed at a distance from the outer end of the extended part, and the synthetic plastic ring can be provided with an external groove to fit over the rib. The extended portion of the sleeve may be sufficiently long to receive two sealing rings held in place by at least one synthetic plastic ring held in place by the rib or beak, and with the sealing rings separated from each other by another synthetic plastic ring, another rib being be placed between the outer sealing ring and the inner synthetic plastic ring.

Den ene eller hver av de syntetiske plastringer kan passe trangt i den utvidede del av muffen, eller den ha en løs eller glidende pasning, så lenge som den sikkert holdes på plass av nebbet eller ribben, fordi forseglingen finner sted bare mellom forseglingsringen og veggen av den utvidede del på den ene side, og spissenden av rørlengden som innføres i muffen. One or each of the synthetic plastic rings may fit snugly in the expanded portion of the sleeve, or have a loose or sliding fit, as long as it is securely held in place by the beak or rib, because the seal takes place only between the seal ring and the wall of the extended part on one side, and the pointed end of the length of pipe which is inserted into the socket.

Muffen selv kan være en kort lengde av utvidet diameter på en ende av et syntetisk plastør eller kobling, idet skulderen mellom muffen og hovedlengden av røret eller hoveddelen av kob-lingen kan ligge an mot spissenden av røret. Alternativt kan muffen være i en ende av en hylse hvis annen ende er en press-pasning eller er festet med klebemiddel eller varme- eller opp-løsningsmiddelsementsveising (hvor det passer) på den ene ende av et syntetisk plastrør eller et leirrør, slik at muffen kan motta spissenden av en lignende rørlengde.. På den anne side kan muffen være den ene ende av en syntetisk plasthylse hvis annen ende er forsynt med en lignende muffe for å. oppta tilstøt-ende ender av syntetiske plast- eller leirvarerør med alminnelige ender, og hylsen er fortrinnsvis p.å midten forsynt med ett eller flere små integrerte innvendige fremspring eller en flens, eller er på annen måte innsnevret innvendig til mindre enn den utvend-ige diameter av rørlengdene på hvilke den skal passe, for å lette innstillingen av hylsen på den rørende på hvilken den først an-bringes . The sleeve itself can be a short length of expanded diameter on one end of a synthetic plastic ear or coupling, the shoulder between the sleeve and the main length of the pipe or the main part of the coupling can rest against the pointed end of the pipe. Alternatively, the socket may be at one end of a sleeve the other end of which is a press fit or is attached by adhesive or heat or solvent cement welding (where appropriate) to one end of a synthetic plastic or clay pipe, so that the socket can receive the pointed end of a similar length of pipe. On the other hand, the socket may be one end of a synthetic plastic sleeve, the other end of which is provided with a similar socket to receive adjacent ends of synthetic plastic or earthenware pipe with plain ends, and the sleeve is preferably provided in the center with one or more small integral internal protrusions or a flange, or is otherwise narrowed internally to less than the outside diameter of the lengths of pipe on which it is to fit, to facilitate the setting of the sleeve on the touching on which it is first applied.

Fire utførelsesformer av oppfinnelsen vil nu bli beskrevet, bare som eksempler, under henvisning til tegningene, som er lengde-snitt som viser de fire rørkoblingsmuffer. Four embodiments of the invention will now be described, as examples only, with reference to the drawings, which are longitudinal sections showing the four pipe coupling sleeves.

På fig. 1 som viser den foretrukne utførelsesform, er en rør-koblingsmuf fe 1 en kort lengde med utvidet diameter på den ene<* >ende av et syntetisk plastrør eller kobling 2, idet skulderen 3 mellom muffen og hovedlengden av røret eller hoveddelen av kob-lingen er tilgjengelig for å støte mot spissenden av et rør (ikke vist). Muffen har en endedel 4 med større innvendig og utvendig diameter enn hovedlengden 1 av muffen med et lite integrert nebb 5 som rager innover fra den ytre ende av den utvidede del. En syntetisk plastring 6 holdes i den utvidede del 4 av nebbet 5 og danner sammen med den indre ende av den utvidede del en innad-vendende ringformig fordypning i hvilken er anbragt en forseglingsring 7 i beredskap for å bevirke forseglende kontakt rundt hele omkretsen av spissenden av en rørlengde som innføres i muffen. In fig. 1 showing the preferred embodiment, a pipe-coupling socket 1 is a short length of expanded diameter at one end of a synthetic plastic pipe or coupling 2, the shoulder 3 between the socket and the main length of the pipe or main part of the coupling is available to abut against the pointed end of a pipe (not shown). The sleeve has an end part 4 with a larger inside and outside diameter than the main length 1 of the sleeve with a small integrated beak 5 which projects inwards from the outer end of the extended part. A synthetic plastic ring 6 is held in the extended part 4 of the beak 5 and together with the inner end of the extended part forms an inward-facing annular recess in which is placed a sealing ring 7 in readiness to effect sealing contact around the entire circumference of the tip end of a length of pipe that is inserted into the socket.

På fig. 2 er leppen erstattet av en liten integrert ribbe 5A i en avstand fra den ytre ende av den utvidede del 4, og en syntetisk plastring 6A har et utvendig spor 8 for å passe over ribben. In fig. 2, the lip is replaced by a small integral rib 5A at a distance from the outer end of the extended part 4, and a synthetic plastic ring 6A has an external groove 8 to fit over the rib.

Fig. 3 er meget lik fig. 2, men viser anvendelsen av ribben 5A i tillegg til nebbet 5. Fig. 3 is very similar to fig. 2, but shows the use of the rib 5A in addition to the beak 5.

På fig. 4 er den utvidede del 4 lang nok til å oppta to forseglingsringer 7 som holdes på plass av en syntetisk plastring 6 som holdes av et nebb 5, og med forseglingsringene skilt ad ved en annen syntetisk plastring 6X. In fig. 4, the extended part 4 is long enough to accommodate two sealing rings 7 held in place by a synthetic plastic ring 6 held by a beak 5, and with the sealing rings separated by another synthetic plastic ring 6X.

Claims (2)

1. Fremgangsmåte ved fremstilling av syntetisk plastrørkoblings-muffe med en utvidet endedel inneholdende en forseglingsring som holdes på plass av en syntetisk plastring, og hvor plastringen selv holdes på plass i den forstørrede endedel ved en integrert ribbe eller leppe som rager innover fra den forstørrede endedel, karakterisert ved at muffen (1) sprøytestøpes under anvendelse av en ikke-kollapsbar kjerne med et lite spor for å danne den forstørrede del (4) av muffen og ribben eller leppen (5 eller 5A), kjernen trekkes ut fra den nydannede muffe, og før muffen har tid til å avkjøle og krympe innsettes holderingen (6,6a) i den forstørrede del mens der er en lett tilpasning, innenfor ribben eller leppen, for holderingen som blir holdt tilbake.av ribben eller leppen når muffen er blitt avkjølt og krympet.1. Method of manufacturing a synthetic plastic pipe coupling sleeve with an enlarged end part containing a sealing ring held in place by a synthetic plastic ring, and where the plastic ring itself is held in place in the enlarged end part by an integral rib or lip projecting inwards from the enlarged end part , characterized in that the sleeve (1) is injection molded using a non-collapsible core with a small slot to form the enlarged portion (4) of the sleeve and the rib or lip (5 or 5A), the core is pulled out from the newly formed sleeve, and before the sleeve has time to cool and shrink, the retaining ring (6,6a) is inserted into the enlarged part while there is a slight fit, within the rib or lip, for the retaining ring which is retained by the rib or lip when the sleeve has cooled and shrunk. 2. Fremgangsmåte ifølge krav 1, karakterisert ved at forseglingsringen (7) innsettes umiddelbart før holderingen (6) .2. Method according to claim 1, characterized in that the sealing ring (7) is inserted immediately before the retaining ring (6).
NO69569A 1968-02-14 1969-02-13 PROCEDURES FOR MANUFACTURING SYNTHETIC PLASTIC WOOD CONNECTION SLEEVE NO136424C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB717468 1968-02-14
GB01658/68A GB1175503A (en) 1968-02-14 1968-02-14 Improvements in or relating to Pipe Couplings

Publications (2)

Publication Number Publication Date
NO136424B true NO136424B (en) 1977-05-23
NO136424C NO136424C (en) 1977-08-31

Family

ID=26241251

Family Applications (1)

Application Number Title Priority Date Filing Date
NO69569A NO136424C (en) 1968-02-14 1969-02-13 PROCEDURES FOR MANUFACTURING SYNTHETIC PLASTIC WOOD CONNECTION SLEEVE

Country Status (5)

Country Link
FI (1) FI54839C (en)
GB (1) GB1175503A (en)
NL (2) NL6902409A (en)
NO (1) NO136424C (en)
SE (1) SE356709B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK150951B (en) * 1978-03-13 1987-09-28 Wavin Bv MOVE WITH A MUFFING

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936081A (en) * 1974-02-27 1976-02-03 R & G Sloane Manufacturing Co., Inc. Pipe joint and method of making same
AR207088A1 (en) * 1975-07-29 1976-09-09 Anger Anton Maschbau PROCEDURE TO PRODUCE AN ARTICLE OF SYNTHETIC MATERIAL
SE397401B (en) * 1976-02-16 1977-10-31 Ekman K R DEVICE FOR A COUPLING UNIT CONSISTING OF MALE AND DOG PARTS
NL8103011A (en) * 1981-06-22 1983-01-17 Dirk Van Manen METHOD FOR MANUFACTURING PLASTIC ATTACHMENTS WITH TUBE COUPLING SOCKET AND APPARATUS FOR APPLYING THE METHOD
DE102005025460A1 (en) * 2005-06-02 2006-12-07 Poloplast Gmbh & Co.Kg Method for producing a pipe end sleeve and bead insert for forming a bead of a Rohrendsteckmuffe
EP2360406B1 (en) * 2010-02-08 2019-01-02 Pipelife Austria GmbH & Co. KG Tube with a connection socket having a support ring
CN104712862A (en) * 2015-03-11 2015-06-17 胡昌永 Direct inserting self-sealing type plastic downspout
DE102018209685A1 (en) * 2018-06-15 2019-12-19 Mahle International Gmbh Tubular body, in particular for a fresh air system of an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK150951B (en) * 1978-03-13 1987-09-28 Wavin Bv MOVE WITH A MUFFING

Also Published As

Publication number Publication date
GB1175503A (en) 1969-12-23
SE356709B (en) 1973-06-04
NL6902409A (en) 1969-08-18
NO136424C (en) 1977-08-31
FI54839B (en) 1978-11-30
NL7210937A (en) 1972-10-25
FI54839C (en) 1979-03-12

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