DK150025B - EXTRADED ROOM MUFF - Google Patents

EXTRADED ROOM MUFF Download PDF

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Publication number
DK150025B
DK150025B DK171478AA DK171478A DK150025B DK 150025 B DK150025 B DK 150025B DK 171478A A DK171478A A DK 171478AA DK 171478 A DK171478 A DK 171478A DK 150025 B DK150025 B DK 150025B
Authority
DK
Denmark
Prior art keywords
expanded
end edge
extended
edge portion
tube
Prior art date
Application number
DK171478AA
Other languages
Danish (da)
Other versions
DK171478A (en
DK150025C (en
Inventor
Adolf Irmer
Original Assignee
Wavin Bv
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 Wavin Bv filed Critical Wavin Bv
Publication of DK171478A publication Critical patent/DK171478A/en
Publication of DK150025B publication Critical patent/DK150025B/en
Application granted granted Critical
Publication of DK150025C publication Critical patent/DK150025C/en

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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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • B29C57/025—Belling or enlarging, e.g. combined with forming a groove combined with the introduction of a sealing ring, e.g. using the sealing element as forming element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting 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
    • F16L47/08—Connecting 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Joints With Sleeves (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Pens And Brushes (AREA)
  • Gasket Seals (AREA)

Description

15002S15002S

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Opfindelsen angår en ekstruderet rørmuffedel af plast og ned et første udvidet parti, son er tilsluttet selve rørdelen, et andet udvidet parti, soa er tilsluttet det første udvidede parti, og et tredje udvidet parti, som er tilsluttet det andet 5 udvidede parti via en skråtstillet vegdel, hvilke udvidede partier har voksende indvendig diameter i nevnte rækkefølge og er stift forbundet med hinanden, og hvilken muffedel har et tetningseleaent, som har en inden for det tredje udvidede parti fastholdt ringformet hoveddel og en inden for det andet udlo videde parti optagelig tætningsring.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an extruded plastic sleeve portion and down a first expanded portion, which is connected to the pipe portion itself, a second extended portion, thus connected to the first expanded portion, and a third extended portion connected to the second extended portion via an inclined portion. which extends portions having increasing internal diameter in said order and is rigidly connected to each other, and which socket member has a sealing element having an annular body portion retained within the third extended portion and a sealed annular portion within the second extended portion.

Fra fransk patentskrift nr. 2.299.586 kendes en sprøjtestøbt rørmuffedel med et tetningseleaent, som har en hoveddel, der optages i en endedel af et rør, ved hvilken endedel endekant-ig delen er bøjet tilbage. Ved denne rørmuffedel risikerer tætningsorganerne at blive beskadiget under indskubningen af en spidsende i muffedelen, da centreringen af spidsenden sikres ved hjælp af tætningselementets materiale.French Patent Specification No. 2,299,586 discloses an injection molded pipe sleeve member having a sealing element having a body portion accommodated in one end portion of a pipe to which the end portion end edge portion is bent back. At this pipe socket member, the sealing means may be damaged during the insertion of a tip end into the socket member, as the centering of the tip end is ensured by the material of the sealing member.

Fra britisk patentskrift nr. 1.227.309 kendes ligeledes en 20 sprøjtestøbt plastrørmuffedel, som har et enkelt udvidet parti, hvis endekantdel står i forbindelse med den øvrige del af det udvidede parti via et hængseldannende reduceret og rundt-gående område, som muliggør, at endekantdelen kan bukkes indad med henblik på fastholdelsen af et tætningselements hoved imel-25 lem det udvidede partis inderste område og den indbukkede endekantdel, medens tætningselementets indadragende tætningsbøsning strækker sig radialt inden for hele rørmuffedelens indvendige periferi. En sådan hængsling af den indadbukkede endekantdel betyder imidlertid en svækkelse af den forreste kant 30 af muffen, så man ved en stødpåvirkning under samling af flere rør kan afbryde den indadbukkede kantdels hængsling helt eller pletvis.British Patent Specification No. 1,227,309 also discloses a 20 injection molded plastic pipe sleeve member having a single expanded portion whose end edge portion communicates with the other portion of the expanded portion via a hinge forming reduced and circumferential region which enables the end edge portion may be bent inwardly for holding the head of a sealing member between the inner region of the expanded portion and the curved end portion, while the sealing member's inner sealing sleeve extends radially within the entire periphery of the inner tube sleeve. However, such hinging of the inwardly bent end portion means a weakening of the leading edge 30 of the sleeve, so that, in the event of an impact during assembly of several tubes, the hinge of the inwardly bent edge portion may be completely or staggered.

Den ekstruderede rørmuffedel ifølge opfindelsen er ejendomme-35 lig ved, at alle de tre udvidede partier har omtrent samme vægtykkelse, og at endekantdelen af det tredje udvidede parti til dannelse af et i det mindste J-formet tværsnit er bøjet således tilbage, at den strækker sig i hovedsagen aksialt i 150025 2 retning imod det andet udvidede parti, idet den fri ende af det tredje udvidede paris tilbagebøjede kantdel er beliggende over for overgangen mellem det tredje udvidede parti og den til det andet udvidede parti førende skråtstillede vægdel, og 5 at den tilbagebøjede kantdel griber om tætningselementets hoveddel.The extruded pipe sleeve portion of the invention is characterized in that all three expanded portions have approximately the same wall thickness and that the end edge portion of the third expanded portion to form at least a J-shaped cross-section is bent so that it extends generally axially in the direction of the second extended portion axially in the 150025, the free end of the bent edge portion of the third extended portion being opposite the transition between the third extended portion and the inclined wall portion leading to the second extended portion, and curved edge portion engages the body of the sealing member.

Herved opnås, at der tilvejebringes en rørmuffedel af ekstruderet plast, som effektivt fastholder hoveddelen på et tæt-ningselement uden fare for, at tætningselementet falder af under transport samtidigt med, at den tilbagebukkede del af rørmuffedelen, som fastholder hoveddelen, tjener til at styre den spidsende, der på anvendelsesstedet skal indføres i rør-muffedelen. Tætningselementet er ude af stand til at bevæge sig i aksial retning under indføringen af spidsenden i rør-muffen samtidigt med, at tætningselementet beskyttes over for beskadigelse af spidsenden, dels på grund af, at denne centreres af den tilbagebukkede endekantdel, og den indadragende del af tætningselementet delvis optages i det andet udvidede par- 20 11 ‘Hereby it is provided that an extruded plastic pipe sleeve member is provided which effectively holds the body part of a sealing member without the danger of the seal member falling off during transport, while at the same time the recessed portion of the pipe sleeve member holding the body member serves to control it. tip end to be inserted into the pipe-sleeve portion at the point of use. The sealing member is unable to move in the axial direction during insertion of the tip end into the tube sleeve while protecting the sealing member from damage to the tip end, partly because it is centered by the recessed end edge portion and the inward portion of the the sealing member is partially accommodated in the second extended pair 11 '

Egnede termoplastmaterialer til et mufferør ifølge opfindelsen er polyvinylchlorid, men andre materialer kan også anvendes.Suitable thermoplastic materials for a sleeve pipe according to the invention are polyvinyl chloride, but other materials can also be used.

Opfindelsen forklares nærmere i det følgende i forbindelse med 25 nogle udførelsesformer og under henvisning til tegningen, hvor fig. 1 viser en plastrørmuffedel, før endekantpartiet er bøjet tilbage, fig. 2 muffedelen under et første arbejdstrin til dannelse af 3-0 en støttering i plastrørmuffedelen, og fig. 3 et billede, der illustrerer et andet arbejdstrin under dannelsen af en støttering i den i fig. 2 viste plastrørmuf fedel .The invention will be further explained in the following with reference to some embodiments and with reference to the drawing, in which fig. 1 shows a plastic pipe sleeve part before the end edge portion is bent back; FIG. 2 shows a sleeve portion during a first working step to form a 3-0 support ring in the plastic tube sleeve portion; and FIG. 3 is a view illustrating another working step during the formation of a support ring in the embodiment of FIG. 2 shows plastic pipe sleeve grease.

Fig. 1 viser en ekstruderet plastrørdel 1 af termoplast, f.-eks. af polyvinylchlorid, med et første udvidet parti 2, hvis indvendige diameter er større end diameteren af rørdelen 1.FIG. 1 shows an extruded plastic pipe part 1 of thermoplastic, e.g. of polyvinyl chloride, with a first expanded portion 2, the inside diameter of which is greater than the diameter of the pipe portion 1.

35 150025 335 150025 3

Det første udvidede parti 2 strækker sig hen til et andet udvidet parti 3. Dette andet udvidede parti 3 går via en skråt-stillet vegdel 4 over i et tredje udvidet parti 5. Endekantde-len 6 af det udvidede parti 5 bukkes således tilbage, at den 5 strækker sig aksialt tilbage i retning imod det andet udvidede parti 3. Den fri ende 7 af den bukkede endekantdel 6 af det tredje udvidede parti 5 placeres hensigtsmæssigt ud for overgangen 8 «ellen det tredje udvidede parti 5 og den skråtstillede vægdel 4.The first expanded portion 2 extends to a second extended portion 3. This second expanded portion 3 passes via an inclined wall portion 4 into a third expanded portion 5. The end edge portion 6 of the expanded portion 5 is bent so that the 5 extends axially towards the second extended portion 3. The free end 7 of the bent end edge portion 6 of the third extended portion 5 is conveniently positioned adjacent the junction 8 'or the third extended portion 5 and the inclined wall portion 4.

10 I rummet, so« er dannet «elle« det tredje udvidede parti 5 og dets tilbagebukkede endekantdel 6, er lejret en hoveddel 9 af et tætningselenent. Hoveddelen 9 står i forbindelse ned en tæt- ningsring 10, so« kan være optaget i det andet udvidede parti „_ 3. Den tilbagebukkede endekantdel 6 danner således en støtte lo ring for tætningselementet.In the compartment, so "formed" or "the third expanded portion 5 and its recessed end edge portion 6, is mounted a body portion 9 of a sealing element. The main member 9 communicates with a sealing ring 10, so may be accommodated in the second expanded portion "3. The recessed end edge portion 6 thus forms a support ring for the sealing member.

Afstanden mellen den fri ende 7 af den ombukkede endekantdel af det tredje udvidede parti 5 og den overfor liggende del 11 af rørmuffedelen er valgt således, at hoveddelen 9 ikke kan 20 trækkes ud gennen åbningen.The distance between the free end 7 of the bent end edge portion of the third expanded portion 5 and the opposite portion 11 of the pipe sleeve portion is selected such that the body portion 9 cannot be pulled out through the opening.

Det ses, at vægtykkelsen af den ekstruderede rørdel, det første udvidede parti 2, det andet udvidede parti 3 og det tredje udvidede parti 5 såvel son endekantdelen 7 er næsten 25 den samme.It will be seen that the wall thickness of the extruded tube portion, the first expanded portion 2, the second expanded portion 3, and the third expanded portion 5 as well as the end edge portion 7 are nearly the same.

Fremstillingen af en plastrørmuffedel af denne type ned en støttering er neget simpel, idet der kan benyttes maskinfremstillede ekstruderede plastrørdele.The manufacture of a plastic pipe sleeve part of this type down a support ring is not simple, as machine-made extruded plastic pipe parts can be used.

3030

Dannelsen af plastrørnuffedelen ifølge opfindelsen sker på følgende måde.The formation of the plastic tube cuff portion of the invention occurs as follows.

En plastrørdel 1 skydes ind på en dorn, der består af en første dorndel 12, en tilstødende anden dorndel 12a ned en 35 dianeter, son er større end diameteren af den første dorndel 12, og en tredje dorndel 12b, son ligger op til den anden dorndel 12a. På denne nåde fornes det første udvidede parti 2 og det andet udvidede parti 3 på plastrørdelen.A plastic pipe portion 1 is inserted into a mandrel consisting of a first mandrel portion 12, an adjacent second mandrel portion 12a down a 35 dianeter, which is larger than the diameter of the first mandrel portion 12, and a third mandrel portion 12b, located up to the second thorn part 12a. On this grace, the first expanded portion 2 and the second expanded portion 3 are joined on the plastic pipe portion.

Claims (3)

150025 En dorndel 12c former det tredje udvidede parti 5 (fig. 1). Endekantdelen 6 af det tredje udvidede parti 5 opvarmes derpå til over deformerings- eller plastificeringstemperaturen 5 (f.eks. til 140°C ved polyvinylchlorid), og ydersiden af røret 1, som består af et første udvidet parti 2 og et andet udvidet parti 3, omsluttes derpå af en første udvendig form 13, der har en endevæg 14, som passer til skråstillingen af vægdelen 4. Ved hjælp af en anden udvendig formdel 14 med et bueformet skulderparti 15 bøjes endekantdelen 6 af det tredje udvidede parti radialt indefter efter anbringelsen af hoveddelen 9 af tætningselementet med tætningsringen 10.150025 A mandrel portion 12c forms the third expanded portion 5 (Fig. 1). The end edge portion 6 of the third expanded portion 5 is then heated above the deformation or plasticization temperature 5 (e.g., to 140 ° C by polyvinyl chloride), and the exterior of the tube 1, which consists of a first expanded portion 2 and a second expanded portion 3. , is then surrounded by a first outer mold 13 having an end wall 14 which fits the inclination of the wall portion 4. By means of a second outer mold portion 14 with an arcuate shoulder portion 15, the end edge portion 6 of the third extended portion is bent radially inward after the application of the the main part 9 of the sealing element with the sealing ring 10. 15 Med en tredje udvendig formdel 16, som også har et rundtgående skulderparti eller en reces 17, bøjes endekantdelen 6 indad til i hovedsagen aksial stilling som vist i fig. 3. Den indvendige diameter ved den ombøjede, aksialt forløbende 20 endekantdel 6 på det tredje udvendige parti 5, og den indvendige. diameter af det andet udvidede parti er i hovedsagen lige store. Det bemærkes, at det er meget overraskende, at støtteringen på denne måde kan udformes ud fra et ekstruderet rør ved anven-25 delse af et simpelt apparatur til påvirkning af endekantdelen 6 på et tredje udvidet parti 5 på røret. Patentkrav. 30With a third outer mold portion 16, which also has a circumferential shoulder portion or recess 17, the end edge portion 6 bends inward to the substantially axial position as shown in FIG. 3. The inner diameter of the curved, axially extending end edge portion 6 of the third outer portion 5, and the inner portion. the diameter of the second extended portion is substantially equal. It is noted that it is very surprising that the support ring can be designed in this way from an extruded tube using a simple apparatus for affecting the end edge portion 6 of a third extended portion 5 of the tube. Claims. 30 1. Ekstruderet rørmuffedel af plast og med et første udvidet parti (2), som er tilsluttet selve rørdelen (1), et andet udvidet parti (3), som er tilsluttet det første udvidede parti og et tredje udvidet parti (5), som er tilsluttet det andet „ udvidede parti (3) via en skråtstillet vægdel (4), hvilke ud- Od videde partier (2, 3 og 4) har voksende indvendig diameter i nævnte rækkefølge og er stift forbundet med hinanden, og hvilken muffedel har et tætningselement, som har en inden for det1. Extruded plastic pipe sleeve part with a first extended portion (2) connected to the pipe portion itself (1), a second extended portion (3) connected to the first expanded portion and a third extended portion (5) which is connected to the second "expanded portion (3) via an inclined wall portion (4), which expanded portions (2, 3 and 4) have increasing internal diameter in said order and are rigidly connected to each other, and which sleeve portion has a sealing element which has one within it
DK171478A 1977-04-20 1978-04-19 EXTRADED ROOM MUFF DK150025C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2717487 1977-04-20
DE2717487A DE2717487C3 (en) 1977-04-20 1977-04-20 Extruded plastic pipe part with molded socket

Publications (3)

Publication Number Publication Date
DK171478A DK171478A (en) 1978-10-21
DK150025B true DK150025B (en) 1986-11-17
DK150025C DK150025C (en) 1987-12-14

Family

ID=6006796

Family Applications (1)

Application Number Title Priority Date Filing Date
DK171478A DK150025C (en) 1977-04-20 1978-04-19 EXTRADED ROOM MUFF

Country Status (18)

Country Link
JP (1) JPS5415525A (en)
AT (1) AT359341B (en)
BE (1) BE866172A (en)
BR (1) BR7802487A (en)
CH (1) CH630161A5 (en)
DE (1) DE2717487C3 (en)
DK (1) DK150025C (en)
FI (1) FI68558C (en)
FR (1) FR2388196A1 (en)
GB (1) GB1587018A (en)
IE (1) IE46558B1 (en)
IT (1) IT1103584B (en)
MX (1) MX145538A (en)
NL (1) NL179609C (en)
NO (1) NO152953C (en)
NZ (1) NZ187033A (en)
SE (1) SE7804468L (en)
SU (1) SU730316A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170883B1 (en) 1998-11-06 2001-01-09 Lindab Ab Tubular element with sealing means and a method for manufacturing the tubular element

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013040A1 (en) * 1978-12-12 1980-07-09 Polva-Nederland B.V. Method and apparatus for forming couplings of thermoplastic material
NL7908625A (en) * 1979-11-28 1981-07-01 Wavin Bv TUBE PART WITH ELASTIC SEALING BODY.
AT376605B (en) * 1981-09-14 1984-12-10 Schnallinger Helfried Ing METHOD AND DEVICE FOR PRODUCING SLEEVES OD. DGL.
NL8201709A (en) * 1982-04-23 1983-11-16 Wavin Bv METHOD AND APPARATUS FOR MANUFACTURING A PLASTIC TUBE PART WITH MOF END.
EP0092889A3 (en) * 1982-04-23 1985-12-18 Wavin B.V. A method and apparatus for manufacturing a plastic pipe part with socket end, as well as a pipe part with socket end obtained in this way
GB2134949A (en) * 1983-02-09 1984-08-22 Plascoat Uk Limited Improvements in road cones or the like
DK162684A (en) * 1983-03-22 1984-11-02 Friedrichsfeld Gmbh ROOM PART OR FITTING
DE3310226C2 (en) * 1983-03-22 1985-08-22 Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim Pipe part or fitting
JPH076036B2 (en) * 1986-05-21 1995-01-25 大同特殊鋼株式会社 Free cutting steel
JPS62278252A (en) * 1986-05-28 1987-12-03 Daido Steel Co Ltd Free-cutting austenitic stainless steel
JPH0774417B2 (en) * 1987-04-30 1995-08-09 三洋電機株式会社 Ni-Cr system stainless steel with improved corrosion resistance and machinability
DE4332774C2 (en) * 1993-09-25 1997-10-23 Vogelsang Ernst Gmbh Co Kg Polyethylene plastic pipe section produced by extrusion
IT201600104207A1 (en) * 2016-10-18 2018-04-18 Ipm S R L PLASTIC TUBE WITH GLASS JOINT

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Publication number Priority date Publication date Assignee Title
LU38571A1 (en) * 1959-06-29
GB1227309A (en) * 1970-03-04 1971-04-07
US3755528A (en) * 1971-09-13 1973-08-28 Anger Kunststoff Method for making tubular articles from a thermoplastic material
NL178491C (en) * 1972-10-13 1986-04-01 Polva Nederland Bv Apparatus for forming a sleeve at the end of a tube of thermoplastic plastic.
FR2299586A1 (en) * 1975-01-28 1976-08-27 Everitube Lip seal for telescopic pipe joint - has circular section annular finger held in groove in female pipe
NL170048B (en) * 1976-01-29 1982-04-16 Wavin Bv METHOD FOR MANUFACTURING AN INJECTION MOLDED TUBE.
AT366210B (en) * 1977-04-05 1982-03-25 Vogelsang Ernst Gmbh Co Kg PIPE CONNECTOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170883B1 (en) 1998-11-06 2001-01-09 Lindab Ab Tubular element with sealing means and a method for manufacturing the tubular element

Also Published As

Publication number Publication date
IT7848985A0 (en) 1978-04-19
FI781179A (en) 1978-10-21
BE866172A (en) 1978-10-20
CH630161A5 (en) 1982-05-28
JPS61514B2 (en) 1986-01-09
IE46558B1 (en) 1983-07-13
DE2717487A1 (en) 1978-10-26
ATA284578A (en) 1980-03-15
NO152953B (en) 1985-09-09
FR2388196A1 (en) 1978-11-17
FR2388196B1 (en) 1983-03-18
AT359341B (en) 1980-11-10
NO152953C (en) 1985-12-18
IT1103584B (en) 1985-10-14
JPS5415525A (en) 1979-02-05
SU730316A3 (en) 1980-04-25
MX145538A (en) 1982-03-03
NZ187033A (en) 1982-03-09
DE2717487C3 (en) 1979-10-11
BR7802487A (en) 1978-12-05
FI68558B (en) 1985-06-28
NL179609C (en) 1986-10-01
SE7804468L (en) 1978-10-21
GB1587018A (en) 1981-03-25
DK171478A (en) 1978-10-21
IE780774L (en) 1978-10-20
NO781349L (en) 1978-10-23
DE2717487B2 (en) 1979-02-15
DK150025C (en) 1987-12-14
NL7804175A (en) 1978-10-24
FI68558C (en) 1985-10-10

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