WO1995008735A1 - Intermediary part for a tubular connector - Google Patents

Intermediary part for a tubular connector Download PDF

Info

Publication number
WO1995008735A1
WO1995008735A1 PCT/MC1994/000001 MC9400001W WO9508735A1 WO 1995008735 A1 WO1995008735 A1 WO 1995008735A1 MC 9400001 W MC9400001 W MC 9400001W WO 9508735 A1 WO9508735 A1 WO 9508735A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
intermediate piece
piece according
plastic material
holding
Prior art date
Application number
PCT/MC1994/000001
Other languages
French (fr)
Inventor
Philippe Barq
Didier Daumas
Original Assignee
Innovation Generale S.A.M.
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 Innovation Generale S.A.M. filed Critical Innovation Generale S.A.M.
Priority to EP94926400A priority Critical patent/EP0692081A1/en
Publication of WO1995008735A1 publication Critical patent/WO1995008735A1/en

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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
    • F16L47/24—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics for joints between metal and plastics pipes

Definitions

  • the present invention relates to an intermediate piece for connecting tubing of the metal-plastic type.
  • connection of tubes of the same material is a known problem for which solutions exist
  • two tubes of different materials that is to say a tube of a metallic alloy to a tube of a material plastic
  • two metal tubes are generally connected either by welding or by screwing, and two tubes made of a plastic material for example by means of an electrically heated sleeve such as those described in documents FR-A-2,555 .936
  • one of the aims of the present invention is to provide a part for the connection between two pipes of different material.
  • Another object of the invention is to provide such a part which can be used on most types of tubes known in different maté ⁇ riau.
  • an intermediate piece made up of two metallic tubular parts the first being connected by any known means with a metallic tubing, which piece is characterized, according to the present invention, in that the second part, intended to be connected to a tube made of a plastic material, comprises a sleeve made of a plastic material compatible with that constituting the tube as well as means for holding this sleeve in position.
  • these means consist of at least one annular groove formed in the external wall of the second part and an O-ring disposed in each annular groove.
  • These means can also be constituted by circular grooves made in the second part, the sleeve then having edges cooperating with these grooves in order to prevent re-drawing: these edges allow the sleeve to engage on the second part. but block its withdrawal by resting on the edge of the grooves.
  • These means may also include a circular groove formed near the free end of the second part and a circlip against which the end of the sleeve can bear. Keeping the sleeve in position can also be obtained by screwing the sleeve onto the second part of the intermediate piece. We can also overmold this sleeve on this second part.
  • FIG. 1 is a perspective view of an intermediate piece according to the present invention
  • - Figure 2 is a view in longitudinal half-section of the part according to Figure 1;
  • FIG. 3 is an enlarged view of detail A in Figure 2.
  • an intermediate piece designated as a whole by the reference 1 for the connection of two tubes or pipes of different material consists of two metal tubular parts, 2 and 3.
  • the first part 2 comprises, in this embodiment, a thread on its outer wall and is intended to be connected to a metal tube. It can include any other means instead of a thread by allowing connection to a metal tube.
  • the second part 3 comprises a sleeve 4 made of a plas ⁇ tic material and means for holding this sleeve in position. According to a first embodiment of the invention, these means are consti ⁇ killed by two annular grooves 5 formed in the outer wall of the second part 3 and an O-ring 6 disposed in each groove.
  • These means can also be constituted by circular grooves 9 formed in the second part 3, the sleeve 4 thus comprising edges 8 cooperating with these grooves in order to prevent removal thereof: these edges 8 allow the engagement of the sleeve 4 on the second part 3 but block its withdrawal by resting on the edge of the grooves 9.
  • These means may also include a circular groove 11 tone swam near the free end of the second part 3 and a circlip 10 against which the end of the sleeve 4 can bear.
  • Maintaining the sleeve 4 in position can also be obtained by screwing the sleeve onto the second part 3 of the intermediate part 1.
  • This sleeve 4 can also be molded onto this second part 3.
  • This second part 3 is intended to be connected to a tube made of a plastic material by means of a connection device such as those described in documents FR-A-2,555,936
  • this intermediate part 1 may include a polygonal collar 7 situated between the two parts 2 and 3.

Abstract

Intermediary part comprised of two metal tubular parts of which the first part (2) is connected by any known means to a metal tube. The second part (3), intended to be connected to a plastic material (2), comprises a sleeve (4) made of plastic material as well as means to maintain said sleeve (4) in place. Application to the connection of pipes made of different materials for transporting fluids.

Description

La présente invention est relative à une pièce intermédiaire pour un raccordement de tubulure du type métal-plastique. The present invention relates to an intermediate piece for connecting tubing of the metal-plastic type.
Les tubes ou tubulures pour le transport des fluides liquides ou gazeux ont été et sont encore en un alliage métal. Mais, depuis quelques années, on assiste à l'utilisation grandissante de tubes en matériau plastique pour transporter et distribuer l'eau et le gaz, en particulier.The tubes or pipes for the transport of liquid or gaseous fluids were and are still made of a metal alloy. However, in recent years, we have been witnessing the growing use of plastic tubes to transport and distribute water and gas, in particular.
Si le raccordement de tubes en un même matériau est un problème connu pour lequel existent des solutions, par contre, raccorder deux tubes en matériaux différents, c'est-à-dire un tube en un alliage mé¬ tallique à un tube en un matériau plastique, constitue un problème dont la résolution actuelle n'est pas encore satisfaisante. Ainsi qu'il est connu, on raccorde deux tubes métalliques généralement soit par soudure, soit par vissage, et deux tubes en un matériau plastique par exemple au moyen d'un manchon électriquement chauffé tel que ceux décrits dans les documents FR-A-2.555.936If the connection of tubes of the same material is a known problem for which solutions exist, on the other hand, connect two tubes of different materials, that is to say a tube of a metallic alloy to a tube of a material plastic, is a problem whose current resolution is not yet satisfactory. As is known, two metal tubes are generally connected either by welding or by screwing, and two tubes made of a plastic material for example by means of an electrically heated sleeve such as those described in documents FR-A-2,555 .936
Aussi un des buts de la présente invention est-il de fournir une pièce pour le raccordement entre deux tubulures en matériau dif¬ férent. Un autre but de l'invention est de fournir une telle pièce qui peut être utilisée sur la plupart des types de tubes connus en maté¬ riau différent.Also one of the aims of the present invention is to provide a part for the connection between two pipes of different material. Another object of the invention is to provide such a part which can be used on most types of tubes known in different maté¬ riau.
Ces buts, ainsi que d'autres qui apparaîtront par la suite, sont atteints par une pièce intermédiaire constituée de deux parties tubu- laires métalliques, la première étant raccordée par tout moyen connu avec une tubulure métallique, laquelle pièce est caractérisée, selon la présente invention, par le fait que la seconde partie, destinée à être raccordée à une tubulure en un matériau plastique, comporte un manchon en un matériau plastique compatible avec celui constituant la tubulure ainsi que des moyens pour maintenir ce manchon en position.These aims, as well as others which will appear subsequently, are achieved by an intermediate piece made up of two metallic tubular parts, the first being connected by any known means with a metallic tubing, which piece is characterized, according to the present invention, in that the second part, intended to be connected to a tube made of a plastic material, comprises a sleeve made of a plastic material compatible with that constituting the tube as well as means for holding this sleeve in position.
Avantageusement, ces moyens sont constitués par au moins une gorge annulaire ménagée dans la paroi externe de la seconde partie et un joint torique disposé dans chaque gorge annulaire.Advantageously, these means consist of at least one annular groove formed in the external wall of the second part and an O-ring disposed in each annular groove.
Ces moyens peuvent aussi être constitués par des cannelures cir- culaires ménagées dans la seconde partie, le manchon comportant alors des arêtes coopérant avec ces cannelures afin d'en empêcher le re¬ trait : ces arêtes permettent l'engagement du manchon sur la seconde partie mais en bloquent le retrait en prenant appui sur le bord des cannelures.These means can also be constituted by circular grooves made in the second part, the sleeve then having edges cooperating with these grooves in order to prevent re-drawing: these edges allow the sleeve to engage on the second part. but block its withdrawal by resting on the edge of the grooves.
Ces moyens peuvent aussi comporter une rainure circulaire ménagée près de l'extrémité libre de la seconde partie et un circlip contre lequel peut prendre appui l'extrémité du manchon. Le maintien en position du manchon peut aussi être obtenu par vissage du manchon sur la seconde partie de la pièce intermédiaire. On peut également surmouler ce manchon sur cette seconde partie.These means may also include a circular groove formed near the free end of the second part and a circlip against which the end of the sleeve can bear. Keeping the sleeve in position can also be obtained by screwing the sleeve onto the second part of the intermediate piece. We can also overmold this sleeve on this second part.
Ces différents moyens pour maintenir le manchon en position ne sont pas exclusifs les uns des autres, mais peuvent être combinés. La description qui va suivre et qui ne présente aucun caractère limitatif doit être lue en regard des figures annexées par les¬ quelles :These different means for holding the sleeve in position are not mutually exclusive, but can be combined. The description which follows and which is in no way limiting in nature must be read with reference to the figures appended by which:
- la figure 1 est une vue en perspective, d'une pièce intermédiaire selon la présente invention ; - la figure 2 est une vue en demi-coupe longitudinale de la pièce se¬ lon la figure 1 ; et,- Figure 1 is a perspective view of an intermediate piece according to the present invention; - Figure 2 is a view in longitudinal half-section of the part according to Figure 1; and,
- la figure 3 est une vue agrandie du détail A de la figure 2.- Figure 3 is an enlarged view of detail A in Figure 2.
Ainsi qu'on peut le voir sur ces figures, une pièce intermédiaire désignée dans son ensemble par la référence 1, pour le raccordement de deux tubes ou tubulures en matériau différent est constituée de deux parties tubulaires métalliques, 2 et 3.As can be seen in these figures, an intermediate piece designated as a whole by the reference 1, for the connection of two tubes or pipes of different material consists of two metal tubular parts, 2 and 3.
La première partie 2 comporte, dans cet exemple de réalisation, un filetage sur sa paroi externe et est destinée à être raccordée à un tube métallique. Elle peut comporter au lieu d'un filetage tout autre moyen en permettant le raccordement sur un tube métallique.The first part 2 comprises, in this embodiment, a thread on its outer wall and is intended to be connected to a metal tube. It can include any other means instead of a thread by allowing connection to a metal tube.
La seconde partie 3 comporte un manchon 4 en un matériau plas¬ tique et des moyens pour maintenir ce manchon en position. Selon un premier mode de réalisation de l'invention, ces moyens sont consti¬ tués par deux gorges annulaires 5 ménagées dans la paroi externe de la seconde partie 3 et un joint torique 6 disposé dans chaque gorge.The second part 3 comprises a sleeve 4 made of a plas¬ tic material and means for holding this sleeve in position. According to a first embodiment of the invention, these means are consti¬ killed by two annular grooves 5 formed in the outer wall of the second part 3 and an O-ring 6 disposed in each groove.
• Ces moyens peuvent aussi être constitués, par des cannelures 9 circulaires ménagées dans la seconde partie 3, le manchon 4 compor¬ tant alors des arêtes 8 coopérant avec ces cannelures afin d'en empê¬ cher le retrait : ces arêtes 8 permettent l'engagement du manchon 4 sur la seconde partie 3 mais en bloquent le retrait en prenant appui sur le bord des cannelures 9. • These means can also be constituted by circular grooves 9 formed in the second part 3, the sleeve 4 thus comprising edges 8 cooperating with these grooves in order to prevent removal thereof: these edges 8 allow the engagement of the sleeve 4 on the second part 3 but block its withdrawal by resting on the edge of the grooves 9.
Ces moyens peuvent aussi comporter une rainure circulaire 11 mé¬ nagée près de l'extrémité libre de la seconde partie 3 et un circlip 10 contre lequel peut prendre appui l'extrémité du manchon 4.These means may also include a circular groove 11 mé¬ swam near the free end of the second part 3 and a circlip 10 against which the end of the sleeve 4 can bear.
Le maintien en position du manchon 4 peut aussi être obtenu par vissage du manchon sur la seconde partie 3 de la pièce intermé¬ diaire 1. On peut également surmouler ce manchon 4 sur cette seconde partie 3.Maintaining the sleeve 4 in position can also be obtained by screwing the sleeve onto the second part 3 of the intermediate part 1. This sleeve 4 can also be molded onto this second part 3.
Ces différents moyens pour maintenir le manchon 4 en position ne sont pas exclusifs les uns des autres, mais peuvent être combinés.These different means for holding the sleeve 4 in position are not mutually exclusive, but can be combined.
Cette seconde partie 3 est destinée à être reliée à un tube en un matériau plastique au moyen d'un dispositif de raccordement tel que ceux décrits dans les documents FR-A-2.555.936This second part 3 is intended to be connected to a tube made of a plastic material by means of a connection device such as those described in documents FR-A-2,555,936
Afin de permettre une manipulation aisée de cette pièce intermé¬ diaire 1, celle-ci peut comporter une collerette 7 polygonale située entre les deux parties 2 et 3. In order to allow easy manipulation of this intermediate part 1, it may include a polygonal collar 7 situated between the two parts 2 and 3.

Claims

R.EVENDICATIONS R.EVENDICATIONS
1. Pièce intermédiaire constituée de deux parties tubulaires métal¬ liques, la première (2) étant raccordée par tout autre moyen connu avec une tubulure métallique, caractérisée par le fait que la seconde partie (3), destinée à être raccordée à une tubulure en un matériau plastique, comporte un manchon (4) en un matériau plastique ainsi que des moyens pour maintenir ledit manchon (4) en position.1. Intermediate piece consisting of two metal¬ tubular parts, the first (2) being connected by any other known means with a metal tube, characterized in that the second part (3), intended to be connected to a tube in a plastic material, comprises a sleeve (4) made of a plastic material as well as means for holding said sleeve (4) in position.
2. Pièce intermédiaire selon la revendication 1, caractérisée par le fait que les moyens pour maintenir le manchon (4) en position com¬ prennent, d'une part au moins une gorge annulaire (5) ménagée dans la paroi externe de la seconde partie (3) et, d'autre part, un joint to¬ nique (6) disposé dans chaque gorge annulaire (5).2. Intermediate piece according to claim 1, characterized in that the means for holding the sleeve (4) in position com¬ take, on the one hand at least one annular groove (5) formed in the external wall of the second part (3) and, on the other hand, a tonic seal (6) disposed in each annular groove (5).
3. Pièce intermédiaire selon la revendication 1, caractérisée par le fait que les moyens sont constitués par des cannelures (9) circu¬ laires ménagées dans la seconde partie (3), le manchon (4) comportent alors des arêtes (8) qui coopèrent avec ces cannelures (9) afin d'en empêcher le retrait.3. Intermediate piece according to claim 1, characterized in that the means consist of grooves (9) circu¬ laries formed in the second part (3), the sleeve (4) then have edges (8) which cooperate with these grooves (9) to prevent removal.
4. Pièce intermédiaire selon la revendication 1, caractérisée par le fait que ces moyens comportent une rainure circulaire (11) ménagée près de l'extrémité de la seconde partie (3) et un circlip (10) contre lequel peut prendre appui l'extrémité du manchon (4).4. Intermediate piece according to claim 1, characterized in that these means comprise a circular groove (11) formed near the end of the second part (3) and a circlip (10) against which the end can bear. of the sleeve (4).
5. Pièce intermédiaire selon la revendication 1, caractérisée par le fait que le maintien en position du manchon (4) sur la seconde partie (3) est obtenu par vissage de celui-là sur celle-ci.5. Intermediate piece according to claim 1, characterized in that the holding in position of the sleeve (4) on the second part (3) is obtained by screwing the latter thereon.
6. Pièce intermédiaire selon la revendication 1, caractérisée par le fait que le manchon (4) est surmoulé sur la seconde partie (3). 6. Intermediate piece according to claim 1, characterized in that the sleeve (4) is molded onto the second part (3).
PCT/MC1994/000001 1993-09-21 1994-09-20 Intermediary part for a tubular connector WO1995008735A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94926400A EP0692081A1 (en) 1993-09-21 1994-09-20 Intermediary part for a tubular connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR93/11431 1993-09-21
FR9311431A FR2712660B1 (en) 1993-09-21 1993-09-21 Intermediate connection piece.

Publications (1)

Publication Number Publication Date
WO1995008735A1 true WO1995008735A1 (en) 1995-03-30

Family

ID=9451234

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MC1994/000001 WO1995008735A1 (en) 1993-09-21 1994-09-20 Intermediary part for a tubular connector

Country Status (4)

Country Link
EP (1) EP0692081A1 (en)
FR (1) FR2712660B1 (en)
MC (1) MC2376A1 (en)
WO (1) WO1995008735A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629622A1 (en) * 1995-12-05 1997-06-12 Fischer Georg Rohrleitung Metal connection with closure and connecting parts with tubular thermoplastic support
CN105114744A (en) * 2015-09-13 2015-12-02 苏州市燃气设备阀门制造有限公司 Steel-plastic conversion connecting structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348862A (en) * 1963-01-22 1967-10-24 Mueller Co Transition fitting
FR2328155A1 (en) * 1975-10-17 1977-05-13 Polva Nederland Bv TENSILE TENSILE FITTING FOR USE BETWEEN A SYNTHETIC TUBE AND A METAL TUBE
DE3313859A1 (en) * 1982-06-16 1983-12-22 Armaturenfabrik Hermann Voss GmbH + Co, 5272 Wipperfürth Plug connection
DE9207199U1 (en) * 1992-05-27 1992-08-13 Fa. Peter Luh, 8950 Kaufbeuren, De
DE4129853C1 (en) * 1991-09-07 1992-11-19 Friedrichsfeld Ag Keramik- Und Kunststoffwerke, 6800 Mannheim, De
EP0561733A1 (en) * 1992-03-19 1993-09-22 PLASSON MAAGAN MICHAEL INDUSTRIES Limited Adaptor for use with electrofusion fittings
EP0565957A1 (en) * 1992-04-11 1993-10-20 Friatec Ag Keramik- Und Kunststoffwerke Connection piece for a pipe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348862A (en) * 1963-01-22 1967-10-24 Mueller Co Transition fitting
FR2328155A1 (en) * 1975-10-17 1977-05-13 Polva Nederland Bv TENSILE TENSILE FITTING FOR USE BETWEEN A SYNTHETIC TUBE AND A METAL TUBE
DE3313859A1 (en) * 1982-06-16 1983-12-22 Armaturenfabrik Hermann Voss GmbH + Co, 5272 Wipperfürth Plug connection
DE4129853C1 (en) * 1991-09-07 1992-11-19 Friedrichsfeld Ag Keramik- Und Kunststoffwerke, 6800 Mannheim, De
EP0561733A1 (en) * 1992-03-19 1993-09-22 PLASSON MAAGAN MICHAEL INDUSTRIES Limited Adaptor for use with electrofusion fittings
EP0565957A1 (en) * 1992-04-11 1993-10-20 Friatec Ag Keramik- Und Kunststoffwerke Connection piece for a pipe
DE9207199U1 (en) * 1992-05-27 1992-08-13 Fa. Peter Luh, 8950 Kaufbeuren, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629622A1 (en) * 1995-12-05 1997-06-12 Fischer Georg Rohrleitung Metal connection with closure and connecting parts with tubular thermoplastic support
DE19629622C2 (en) * 1995-12-05 1999-02-25 Fischer Georg Rohrleitung Connection element for a pipe part and method for producing the connection element
CN1080399C (en) * 1995-12-05 2002-03-06 乔治费希尔管路系统公开股份有限公司 Connection pipe fitting for pipe line
CN105114744A (en) * 2015-09-13 2015-12-02 苏州市燃气设备阀门制造有限公司 Steel-plastic conversion connecting structure

Also Published As

Publication number Publication date
MC2376A1 (en) 1995-09-14
EP0692081A1 (en) 1996-01-17
FR2712660B1 (en) 1996-02-16
FR2712660A1 (en) 1995-05-24

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