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FR2520087A1 - Coupling for undulating pipes - has cylindrical sleeve placed over pipe and deformed into hexagonal section for use of spanner - Google Patents

Coupling for undulating pipes - has cylindrical sleeve placed over pipe and deformed into hexagonal section for use of spanner Download PDF

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Publication number
FR2520087A1
FR2520087A1 FR8200904A FR8200904A FR2520087A1 FR 2520087 A1 FR2520087 A1 FR 2520087A1 FR 8200904 A FR8200904 A FR 8200904A FR 8200904 A FR8200904 A FR 8200904A FR 2520087 A1 FR2520087 A1 FR 2520087A1
Authority
FR
France
Prior art keywords
pipe
skirt
nut
undulating
pipes
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.)
Granted
Application number
FR8200904A
Other languages
French (fr)
Other versions
FR2520087B1 (en
Inventor
Alain Senechal
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.)
Tubest SA
Original Assignee
Tubest SA
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 Tubest SA filed Critical Tubest SA
Priority to FR8200904A priority Critical patent/FR2520087B1/en
Publication of FR2520087A1 publication Critical patent/FR2520087A1/en
Application granted granted Critical
Publication of FR2520087B1 publication Critical patent/FR2520087B1/en
Expired legal-status Critical Current

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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
    • F16L25/00Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0036Joints for corrugated pipes
    • 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
    • F16L33/00Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/26Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses specially adapted for hoses of metal
    • 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
    • F16L33/00Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/32Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses comprising parts outside the hoses only

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)

Abstract

The coupling prevents the twisting of pipes of undulating section when fastening to another pipe. A cylindrical sleeve (5) is placed over the pipe (1) to leave one trough (4) of the undulating surface free to take the ring (3) of the nut (2). The sleeve is then squeezed into a hexagonal shape which enables it to be held with a spanner whilst the nut (2) is tightened, preventing twisting of the pipe (1). Some of the undulations of the pipe surface are permanently deformed by the squeezing action of the sleeve (5), but this is not detrimental.

Description

L'invention a pour objet un dispositif facilitant le raccordement des tuyaux onduleux. The invention relates to a device facilitating the connection of corrugated pipes.

Le raccordement des tuyaux onduleux est souvent réalisé au moyen d'un écrou tournant dont la face située en regard du tuyau forme une bague qui est montée libre en rotation à l'intérieur de la dernière onde du tuyau. Pour procéder au raccordement du tuyau, l'opérateur amène cet écrou en prise avec le filetage de l'embout destiné à recevoir le tuyau, et il visse l'écrou jusqu'à compression d'un joint annulaire entre l'extrémité du tuyau et l'embout. The connection of corrugated pipes is often carried out by means of a rotating nut, the face of which faces the pipe forms a ring which is mounted to rotate freely inside the last wave of the pipe. To connect the pipe, the operator brings this nut into engagement with the thread of the end piece intended to receive the pipe, and he screws the nut until an annular seal is compressed between the end of the pipe and the mouthpiece.

Bien que l'écrou soit libre sur le tuyau, il y a cependant entre eux des frottements, notamment entre la bague de l'écrou et la face de l'onde écrasée; et ces frottements sont tels que la rotation de l'écrou entraîne une torsion du tuyau sur lui-même et donc sa déformation. Although the nut is free on the pipe, there is however friction between them, in particular between the ring of the nut and the face of the crushed wave; and this friction is such that the rotation of the nut causes the pipe to twist on itself and therefore to deform.

L'invention écarte cet inconvénient. Elle a pour objet un dispositif consistant en une jupe qui, extérieurement concentrique au tuyau et séparée de l'extrémité de ce tuyau par au moins l'onde servant de prise à l'écrou, présente un profil extérieur non cylindrique, par exemple polygonal, et est liée en rotation et longitudinalement avec le tuyau. The invention eliminates this drawback. It relates to a device consisting of a skirt which, externally concentric with the pipe and separated from the end of this pipe by at least the wave serving as a socket for the nut, has a non-cylindrical external profile, for example polygonal, and is linked in rotation and longitudinally with the pipe.

La solidarisation de cette jupe avec le tuyau permet de tenir ce dernier soit à la main, soit avec un outil, par exemple une clé, pendant les opérations de montage et de démontage, et ainsi de serrer efficacement l'écrou sur l'embout, sans risque de rotation et de déformation du tuyau. The attachment of this skirt with the pipe makes it possible to hold the latter either by hand or with a tool, for example a key, during the assembly and disassembly operations, and thus effectively tighten the nut on the end piece, without risk of rotation and deformation of the pipe.

En théorie, le même résultat pourrait être obtenu en se contentant de donner une section polygonale aux ondes du tuyau dans la zone considérée; mais en pratique, la relativement faible épaisseur de la paroi métallique du tuyau risquerait de conduire- à sa destruction par l'outil de serrage. In theory, the same result could be obtained by simply giving a polygonal section to the waves of the pipe in the area considered; but in practice, the relatively small thickness of the metal wall of the pipe may lead to its destruction by the clamping tool.

Il est donc impératif qu'une section polygonale soit donnée à la fois à la jupe extérieure et aux ondes du tuyau logées dans cette jupe. It is therefore imperative that a polygonal section is given both to the outer skirt and to the waves of the pipe housed in this skirt.

Divers moyens peuvent être envisagés pour atteindre ce but. C'est ainsi notamment que si la jupe et le tuyau sont métalliques, une simple opération de sertissage permet de déformer simultanément et définitivement à la fois la jupe et le tuyau, en les faisant passer de la section circulaire à la section polygonale. Various means can be envisaged to achieve this goal. Thus, in particular that if the skirt and the pipe are metallic, a simple crimping operation makes it possible to simultaneously and permanently deform both the skirt and the pipe, by passing them from the circular section to the polygonal section.

L'invention sera bien comprise d'ailleurs à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution de ce dispositif facilitant le raccordement des tuyaux métalliques onduleux:
Figure 1 est une vue en coupe longitudinale de l'ensemble : extrémité du tuyau onduleux, écrou de raccordement et dispositif objet de l'invention;
Figure 2 est une vue en perspective de la jupe constituant l'élément essentiel du dispositif objet de l'invention; cette jupe étant vue avant mise en place sur le tuyau onduleux;
Figure 3 est une vue en perspective de cette jupe immédiatement après sa mise en place sur le tuyau onduleux;
Figure 4 est une vue identique après sertissage de la jupe sur le tuyau; et
Figure 5 est une vue identique à la figure 4, mais avec coupe longitudinale de la jupe.
The invention will be understood moreover with the aid of the description which follows, with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, an embodiment of this device facilitating the connection of corrugated metal pipes :
Figure 1 is a longitudinal sectional view of the assembly: end of the corrugated pipe, connection nut and device object of the invention;
Figure 2 is a perspective view of the skirt constituting the essential element of the device object of the invention; this skirt being seen before installation on the undulating pipe;
Figure 3 is a perspective view of this skirt immediately after its installation on the corrugated pipe;
Figure 4 is an identical view after crimping the skirt on the pipe; and
Figure 5 is a view identical to Figure 4, but with longitudinal section of the skirt.

A la figure 1, 1 désigne le tuyau métallique onduleux et 2 écrou permettant le raccordement de ce tuyau sur un embout qui n'est pas représenté au dessin. Cet écrou 2 présente, sur sa face dirigée vers le tuyau 1, une bague circulaire 3 qui est montée libre en rotation dans l'onde d'extrémité 4 du tuyau onduleux 1. In Figure 1, 1 denotes the corrugated metal pipe and 2 nut allowing the connection of this pipe on a nozzle which is not shown in the drawing. This nut 2 has, on its face directed towards the pipe 1, a circular ring 3 which is mounted to rotate freely in the end wave 4 of the corrugated pipe 1.

Conformément à~l'invention, cet ensemble est complété par une jupe métallique 5 qui présente primitivement la section circulaire représentée à la figure 2. Cette jupe 5 possède un diamètre lui permettant d'être montée librement sur le tuyau métallique onduleux 1; et sa longueur est suffisante pour lui permettre de recouvrir plusieurs ondes de ce tuyau, par exemple trois ondes. According to ~ the invention, this set is completed by a metal skirt 5 which originally has the circular section shown in Figure 2. This skirt 5 has a diameter allowing it to be freely mounted on the corrugated metal pipe 1; and its length is sufficient to allow it to cover several waves of this pipe, for example three waves.

Après que la jupe 5 ait été introduite sur le tuyau onduleux 1, dans la position montrée à la figure 3, position dans laquelle cette jupe laisse entièrement apparaître la dernière onde 4, destriée à recevoir la bague 3 de l'écrou 2, une opération de sertissage est réalisée. Grâce à cette opération de sertissage, la jupe 5 adopte la section hexagonale visible à la figure 4; mais il est important de remarquer qu'en se déformant grâce à ce sertissage, la jupe 5 provoque une déformation identique et permanente du tuyau onduleux 1, plus précisément une déformation des ondes de ce tuyau qui se trouvent logées à l'intérieur de cette jupe. Cette déformation des ondes du tuyau est visible à la figure 5. After the skirt 5 has been introduced on the corrugated pipe 1, in the position shown in FIG. 3, position in which this skirt fully reveals the last wave 4, intended to receive the ring 3 of the nut 2, an operation crimping is performed. Thanks to this crimping operation, the skirt 5 adopts the hexagonal section visible in FIG. 4; but it is important to note that by deforming thanks to this crimping, the skirt 5 causes an identical and permanent deformation of the corrugated pipe 1, more precisely a deformation of the waves of this pipe which are housed inside this skirt . This deformation of the waves of the pipe is visible in Figure 5.

Grâce à cette déformation de la jupe 5 et des ondes correspondantes du tuyau 1, il y a liaison de la jupe et du tuyau à la fois longitudinalement et en rotation. Il devient donc possible, lors de l'opération de vissage de l'écrou 2 sur un embout de raccordement, de tenir le tuyau au moyen d'une clé ou de tout autre outil enveloppant partiellement la jupe 5. L'opération de vissage de l'écrou 2 ne conduit donc pas à une rotation et à une torsion du tuyau 1 sur lui-même, et ce malgré les frottements qui se produisent entre la bague 3 de l'écrou 2 et la face correspondante de la dernière onde écrasée du tuyau onduleux 1. Thanks to this deformation of the skirt 5 and the corresponding waves of the pipe 1, there is connection of the skirt and the pipe both longitudinally and in rotation. It therefore becomes possible, during the screwing operation of the nut 2 on a connection end piece, to hold the pipe by means of a wrench or any other tool partially enveloping the skirt 5. The screwing operation of the nut 2 therefore does not lead to a rotation and a torsion of the pipe 1 on itself, and this despite the friction which occurs between the ring 3 of the nut 2 and the corresponding face of the last crushed wave of the corrugated pipe 1.

Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution de ce dispositif facilitant le raccordement d'un tuyau onduleux; elle en embrasse, au contraire, toutes les variantes de réalisation, quelle que soit notamment la forme de la section donnée à la jupe et aux ondes correspondantes du tuyau; et elle étend son champ d'application, non seulement aux tuyaux onduleux métalliques, mais de façon générale à tous tuyaux onduleux quelle que soit leur nature, et ainsi par exemple aux tuyaux moulés en résine synthétique. Dans ce dernier cas, la jupe qui sert à maintenir le tuyau pendant son raccordement ou son débranchement est rendue solidaire du tuyau par une opération telle qu'une application d'ultrasons.  It goes without saying that the invention is not limited to the sole embodiment of this device facilitating the connection of a corrugated pipe; on the contrary, it embraces all the variant embodiments thereof, whatever in particular the shape of the section given to the skirt and to the corresponding waves of the pipe; and it extends its field of application, not only to metallic corrugated pipes, but generally to all corrugated pipes whatever their nature, and thus for example to pipes molded in synthetic resin. In the latter case, the skirt which is used to hold the pipe during its connection or disconnection is made integral with the pipe by an operation such as an application of ultrasound.

Claims (3)

REVENDICATIONS 1.- Dispositif pour faciliter le raccordement des tuyaux onduleux au moyen d'un écrou se terminant par une bague montée libre dans la dernière onde du tuyau, caractérisé en ce qu'il consiste en une jupe (5) qui, extérieurement concentrique au tuyau (1) et séparée de l'extrémité de ce tuyau par au moins l'onde (4) servant de prise à l'écrou (2) présente un profil extérieur non cylindrique, par exemple polygonal, et est liée en rotation et longitudinalement avec le tuyau. 1.- Device to facilitate the connection of corrugated pipes by means of a nut ending in a ring mounted freely in the last wave of the pipe, characterized in that it consists of a skirt (5) which, externally concentric with the pipe (1) and separated from the end of this pipe by at least the wave (4) serving to grip the nut (2) has a non-cylindrical external profile, for example polygonal, and is linked in rotation and longitudinally with the pipe. 2.- Procédé pour réaliser le dispositif selon la revendication 1 dans le cas d'un tuyau onduleux métallique, caractérisé en ce qu'autour des ondes du tuyau situées à proximité de l'écrou (2) est montée une jupe métallique cylindrique (5), et en ce que par sertissage cette jupe (5) et les ondes de tuyau sous-jacentes sont déformées jusqu'à atteindre une section polygonale. 2.- Method for producing the device according to claim 1 in the case of a metallic corrugated pipe, characterized in that around the waves of the pipe located near the nut (2) is mounted a cylindrical metallic skirt (5 ), and in that by crimping this skirt (5) and the underlying pipe waves are deformed until reaching a polygonal section. 3.- Procédé pour réaliser le dispositif selon la revendication 1 dans le cas d'un tuyau onduleux en résine synthétique, caractérisé en ce qu'autour des ondes du tuyau à proximité de l'écrou (2) est montée une jupe constituée en résine synthétique et présentant, au moins extérieurement, un profil non cylindrique et en ce que cette jupe est solidarisée du tuyau par exemple par application d'ultra-sons.  3.- Method for producing the device according to claim 1 in the case of an undulating synthetic resin pipe, characterized in that around the waves of the pipe near the nut (2) is mounted a skirt made of resin synthetic and having, at least externally, a non-cylindrical profile and in that this skirt is secured to the pipe for example by application of ultrasound.
FR8200904A 1982-01-21 1982-01-21 DEVICE FOR FACILITATING THE CONNECTION OF CORRUGATED PIPES AND METHOD FOR MAKING SAME Expired FR2520087B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8200904A FR2520087B1 (en) 1982-01-21 1982-01-21 DEVICE FOR FACILITATING THE CONNECTION OF CORRUGATED PIPES AND METHOD FOR MAKING SAME

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8200904A FR2520087B1 (en) 1982-01-21 1982-01-21 DEVICE FOR FACILITATING THE CONNECTION OF CORRUGATED PIPES AND METHOD FOR MAKING SAME

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FR2520087A1 true FR2520087A1 (en) 1983-07-22
FR2520087B1 FR2520087B1 (en) 1986-03-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163386A2 (en) * 1984-05-24 1985-12-04 Aeroquip AG Beadlock wrench flat fitting
DE9420502U1 (en) * 1994-11-30 1995-07-20 Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 75175 Pforzheim Connection between a pipe and a tubular line element
CN114215983A (en) * 2021-12-20 2022-03-22 川润液压技术(江苏)有限公司 Avoid torsional metal corrugated hose end connection structure and metal corrugated hose

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20213723U1 (en) 2002-08-30 2002-11-14 Senior Berghöfer GmbH, 34121 Kassel corrugated hose

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323912A (en) * 1940-04-30 1943-07-13 Chicago Metal Hose Corp Coupling construction
US2499241A (en) * 1947-05-10 1950-02-28 Weatherhead Co Method of making hose ends
US2583956A (en) * 1947-04-03 1952-01-29 Chicago Metal Hose Corp Coupling structure
GB739575A (en) * 1953-09-03 1955-11-02 Us Rubber Co Improvements in hose and coupling combination
FR2028437A1 (en) * 1969-01-16 1970-10-09 Dunlop Co Ltd

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323912A (en) * 1940-04-30 1943-07-13 Chicago Metal Hose Corp Coupling construction
US2583956A (en) * 1947-04-03 1952-01-29 Chicago Metal Hose Corp Coupling structure
US2499241A (en) * 1947-05-10 1950-02-28 Weatherhead Co Method of making hose ends
GB739575A (en) * 1953-09-03 1955-11-02 Us Rubber Co Improvements in hose and coupling combination
FR2028437A1 (en) * 1969-01-16 1970-10-09 Dunlop Co Ltd

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163386A2 (en) * 1984-05-24 1985-12-04 Aeroquip AG Beadlock wrench flat fitting
EP0163386A3 (en) * 1984-05-24 1987-04-01 Aeroquip Ag Beadlock wrench flat fitting
DE9420502U1 (en) * 1994-11-30 1995-07-20 Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 75175 Pforzheim Connection between a pipe and a tubular line element
CN114215983A (en) * 2021-12-20 2022-03-22 川润液压技术(江苏)有限公司 Avoid torsional metal corrugated hose end connection structure and metal corrugated hose

Also Published As

Publication number Publication date
FR2520087B1 (en) 1986-03-07

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