EP0052638A1 - Bague d'etancheite en materiau elastique - Google Patents

Bague d'etancheite en materiau elastique

Info

Publication number
EP0052638A1
EP0052638A1 EP81901545A EP81901545A EP0052638A1 EP 0052638 A1 EP0052638 A1 EP 0052638A1 EP 81901545 A EP81901545 A EP 81901545A EP 81901545 A EP81901545 A EP 81901545A EP 0052638 A1 EP0052638 A1 EP 0052638A1
Authority
EP
European Patent Office
Prior art keywords
main member
sealing ring
sealing
spigot end
outer portion
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.)
Withdrawn
Application number
EP81901545A
Other languages
German (de)
English (en)
Inventor
Jorn Christensen
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.)
SCHIONNING AND ARVE AS
Original Assignee
SCHIONNING AND ARVE AS
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 SCHIONNING AND ARVE AS filed Critical SCHIONNING AND ARVE AS
Publication of EP0052638A1 publication Critical patent/EP0052638A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints 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
    • F16L21/035—Joints 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 around the spigot end before connection
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints 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
    • F16L21/025—Rolling sealing rings

Definitions

  • the invention relates to a sealing ring of an elastic material, consisting of a solid main member to be applied under expansion thereof to the spigot end of a pipe and a solid sealing member substantially of circular cross-section connected to said main member through a thin connecting flap, said sealing member, when the main member is applied, being disposed completely or partly outside the outer portion of the main member facing in the direction of the spigot end, said main member having a ring-shaped depression to receive, at least partly, the sealing member after insertion. of the spigot end into a pipe socket on an adjoining pipe.
  • the known sealing rings of the present type also involve a risk of the main member and/or the sealing member proper being twisted during the application or during the assembling of the pipe ends.
  • the object of the invention present is to avoid these drawbacks while providing favourable load conditions with due regard to the elastic materials used, the loading of which must not exceed given values, so that there is no risk of the material being permanently deformed, which would reduce the efficiency of the seal.
  • This is achieved according to the invention in that the connecting flap in cross-section is of such length that after application of the sealing ring to the spigot end said connecting flap extends from the sealing member over the upwardly domed outer portion of the main member and to a junction between the connecting flap and the main member positioned adjacent said depression.
  • the advantage of such an embodiment is that after insertion of the spigot end into a pipe socket of an adjoining pipe the relatively long flap will be disposed on the exterior of the upwardly domed outer portion of the main member, as, during assembling of the two pipes, the sealing member of circular cross-section will roll right up to the said depression and be placed in position there while being flattened to some extent, to thereby provide the desired sealing pressure and secure locking.
  • the outer portion of the main member will be closely spaced from the inner side of the pipe socket as long as the two pipes are fitted quite correctly with respect to each other, but in case of lateral loads or obliqueness in the mutual positions of the pipes, this outer portion will engage the inner side of the pipe socket and thus serve to limit the undesirable lateral mutual movements of the pipes.
  • said depression of the main member has a bottom which is substantially rectilinear in cross-section and extends in parallel with the engagement face of the main member against the spigot end.
  • an engagement member is provided at the edge of the said outer portion of the main member, said engagement member being displaced radially inwardly to engage a shoulder on the spigot end and adapted to restrict the radially inward movement of the sealing member during application of the sealing ring to the spigot end.
  • the edge portion opposite said outer portion of the main member has substantially the same radial thickness outside the said depression as said outer portion; the advantage of this is that both the said edge portion and the domed outer portion contribute to restricting lateral displacements, and at the same time the said edge portion confines the depression and thus contributes to the efficient locking of the sealing member.
  • fig. 1 shows a cross-section of a sealing ring according to the invention in an unaffected state
  • fig. 2 shows the same sealing ring applied to the spigot end of a pipe
  • fig. 3 shows the sealing ring after the spigot end has been completely inserted into a pipe socket.
  • Fig. 1 shows the cross-section of a sealing ring consisting of a main member 1 which, at the edge which is to face an adjoining pipe, has an upwardly domed outer portion 2 with an engagement member 3 displaced radially inwardly.
  • the main member 1 has a depression 4 serving to receive a sealing member 5 which is connected to the domed outer portion 2 close to the depression 4 through a flap 6 which is long in cross-section.
  • the sealing member 5 proper has a substantially circular cross-section and may, as shown, be provided with small serrations or another fine profiling to provide efficient friction against a socket member to be slid over the sealing ring during the assembling of two pipes.
  • the main member 1 has an edge portion 7 which is disposed opposite said outer portion 2 and is of substantially the same height as the domed outer portion 2.
  • the main member 1 of the sealing ring has a slightly smaller diameter than the spigot end to which it is to be applied, and in fig. 2 the sealing ring is shown mounted on a spigot end 8. In this position, owing to the expansion of the main member 1, the sealing member 5 will assume the shown position where it engages the engagement member 3, where it is in a correct position for insertion into a pipe socket.
  • the sealing ring is shown after the spigot end 8 has been inserted into a pipe socket 9, the sealing member 5 having been rolled into the depression 4 whose bottom is substantially parallel with the inner surface of the sealing ring, so that the sealing member will be evenly loaded.
  • the engagement member 3 can contribute to preventing axial displacement of the sealing ring during insertion into the pipe socket 9.
  • the domed outer portion 2 as well as the edge portion 7 is of such height that their outer surfaces are quite closely spaced from the inner surface of the pipe socket 9, and one or both of them can then engage the pipe socket in case of a relative, lateral displacement of the two pipe members.
  • the flap 6 engages the inner side of the pipe socket 9 and forms together with the sealing member 5 the seal proper, and with the standard dimensions the lateral displacement which is possible in relation to the outer portion 2 and the edge portion 7 is determined so that the material in the sealing member 5 and in the flap 6 cannot be overloaded.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Sleeves (AREA)
  • Gasket Seals (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

Une bague d'etancheite en materiau elastique est adaptee pour etre appliquee par expansion de celle-ci a l'extremite male d'un tuyau et consiste en un organe principal solide (1), qui est connecte a un organe d'etancheite (5) par l'intermediaire d'une patte fine (6). L'organe principal (1) possede un organe d'ancrage (4) pour recevoir l'organe d'etancheite (5). Pour obtenir une bonne etancheite et une insertion appropriee de l'extremite male (8) pourvue de la bague d'etancheite dans un manchon de tuyau (9) sans risque de surcharge pour le materiau elastique l'organe d'etancheite (5) possede une section circulaire, et sa patte de connexion (6) a l'organe principal (1) possede une longueur telle qu'apres montage de la bague d'etancheite sur l'extremite male (8) elle s'etend par dessus la partie exterieure (2) de l'organe principal (1) qui est disposee au bout de l'extremite male (8).
EP81901545A 1980-05-28 1981-05-27 Bague d'etancheite en materiau elastique Withdrawn EP0052638A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK2301/80 1980-05-28
DK230180A DK230180A (da) 1980-05-28 1980-05-28 Taetningsring af elastisk materiale

Publications (1)

Publication Number Publication Date
EP0052638A1 true EP0052638A1 (fr) 1982-06-02

Family

ID=8111451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81901545A Withdrawn EP0052638A1 (fr) 1980-05-28 1981-05-27 Bague d'etancheite en materiau elastique

Country Status (5)

Country Link
EP (1) EP0052638A1 (fr)
DK (1) DK230180A (fr)
NO (1) NO814300L (fr)
SE (1) SE8200429L (fr)
WO (1) WO1981003535A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809994A (en) * 1986-10-16 1989-03-07 Press-Seal Gasket Corporation Pipe joint seal with bistable elastomeric sealing projection
US4916799A (en) * 1986-10-16 1990-04-17 Press-Seal Gasket Corporation Method of making a pipe joint seal with bistable elastomeric sealing projection
US5624123A (en) * 1994-05-11 1997-04-29 Tuf-Tite, Inc. Pipe seal assembly for poured concrete on-site waste disposal system components
FI101498B1 (fi) * 1995-05-16 1998-06-30 Uponor Bv Muhviliitos muoviputkia varten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285806B (de) * 1966-06-03 1968-12-19 Rheinstahl Huettenwerke Ag Muffenrohrdichtung
DE1944832A1 (de) * 1969-09-04 1971-03-11 Muecher Hermann Elastischer Dichtungsring fuer Rohrverbindungsstellen
DE2519540A1 (de) * 1975-05-02 1976-11-18 Clouth Gummiwerke Ag Rohrdichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8103535A1 *

Also Published As

Publication number Publication date
SE8200429L (sv) 1982-01-27
NO814300L (no) 1981-12-16
DK230180A (da) 1981-11-29
WO1981003535A1 (fr) 1981-12-10

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19820804

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CHRISTENSEN, JORN