FR2591940A1 - Improvement to devices for fixing one fusion-bondable element onto another - Google Patents

Improvement to devices for fixing one fusion-bondable element onto another Download PDF

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Publication number
FR2591940A1
FR2591940A1 FR8519098A FR8519098A FR2591940A1 FR 2591940 A1 FR2591940 A1 FR 2591940A1 FR 8519098 A FR8519098 A FR 8519098A FR 8519098 A FR8519098 A FR 8519098A FR 2591940 A1 FR2591940 A1 FR 2591940A1
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FR
France
Prior art keywords
strap
saddle
tube
stirrup
housing
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.)
Pending
Application number
FR8519098A
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French (fr)
Inventor
Gerard Grandclement
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.)
Toutelectric SAM
Original Assignee
Toutelectric SAM
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 Toutelectric SAM filed Critical Toutelectric SAM
Priority to FR8519098A priority Critical patent/FR2591940A1/en
Publication of FR2591940A1 publication Critical patent/FR2591940A1/en
Pending legal-status Critical Current

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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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/20—Vices for clamping work of special profile, e.g. pipes
    • B25B1/205—Vices of the chain or strip type
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/561—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using screw-threads being integral at least to one of the parts to be joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint 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
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81471—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a wrap-around tape or band
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
    • F16L47/28—Joining pipes to walls or to other pipes, the axis of the joined pipe being perpendicular to the wall or to the axis of the other pipe
    • 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
    • F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
    • F16L47/34—Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Basic Packing Technique (AREA)

Abstract

Device for fixing under pressure, one heat-bondable element onto another, especially fixing a shaped saddle containing an electrical heating resistor onto a cylindrical tube (pipe), of the type consisting of a strap surrounding the portion of the said tube (pipe) opposite the said saddle, and of a winding tightening system for the strap, the casing of which exerts a pressure on the said saddle when the strap is tight, characterised in that the said strap system exerts its force by means of a U-clamp bearing symmetrically on the two sides of the saddle and on the bottom of which is exerted the pressure from the strap system, the two ends of the strap being located, respectively, one on its winding means and the other on an attachment point integral with the fixed casing of the said system.

Description

La Déposante a décrit dans le Brevet français 8505666 un dispositif pour la mise en place et le maintien d'un élément thermosoudable sur un autre, notamment pour l'electrosoudage sur un tube principal, d'un piquage constitué par un tube radial solidaire d'une pièce galbé à la forme dudit tube, c'est-à-dire en forme de selle,contenant un enroulement de résistance électrique.Un tel dispositif consiste, essentiellement, en un système à sangle, dont une extrémité est accrochée à un point fixe du premier élément thermosoudable, par exemple la selle, tandis que l'autre est soumise, après avoir contourné la périphérie du second élément thermosoudable, par exemple le tube principal, à une traction progressive au moyen d'un tendeur se composant d'un levier de manoeuvre faisant pivoter un rouleau d'entraînement de la sangle dans le sens de la tension, un cliquet bloquant une roue à rochet pour interdire le pivotement en sens contraire dudit rouleau, l'armature de ce système de tendeur prenant appui en un point du premier élément thermosoudable opposé au point fixe auquel s'accroche la boucle terminant la sangle. The Applicant described in French Patent 8505666 a device for the installation and the maintenance of a heat-weldable element on another, in particular for the electrowelding on a main tube, of a nozzle constituted by a radial tube integral with a curved piece in the shape of said tube, that is to say in the form of a saddle, containing an electrical resistance winding. Such a device consists essentially of a strap system, one end of which is hooked to a fixed point of the first heat-sealable element, for example the saddle, while the other is subjected, after having bypassed the periphery of the second heat-sealable element, for example the main tube, to progressive traction by means of a tensioner consisting of a lever maneuver rotating a strap drive roller in the tension direction, a pawl blocking a ratchet wheel to prevent pivoting in the opposite direction of said roller, the frame of this tensioner system taking ap then at a point on the first heat-sealable element opposite the fixed point to which the buckle closes ending the strap.

Bien que cette dispositif vise à enrouler la sangle tout autour du tube principal, de manière à répartir de manière aussi uniforme que possible, la pression de la sangle sur ce tube principal, il demeure toujours une zone du tube principal sur laquelle cette pression ne s'exerce pas directement, et cette zone est précisément celle sur laquelle s'appuie la selle, et qui devrait être la plus concernée. Although this device aims to wind the strap all around the main tube, so as to distribute as uniformly as possible, the pressure of the strap on this main tube, there still remains an area of the main tube on which this pressure does not s exercise not directly, and this area is precisely the one on which the saddle rests, and which should be the most concerned.

Le Brevet précité vise bien un moyen d'appui du système sur le dessus de la selle, à savoir un chapeau basculant venant se placer par-dessus la partie supérieure de dérivation, en vue de son maintien au moment de la mise en place, mais ce chapeau n'exerce lui-même sa pression que ponctuellement, sans point de référence aux parties latérales du système. The aforementioned patent is indeed aimed at a means of supporting the system on the top of the saddle, namely a tilting cap coming to be placed over the upper bypass part, with a view to maintaining it when it is put in place, but this cap exerts its pressure only punctually, without a point of reference to the lateral parts of the system.

La présente invention vise à remédier à ce défaut, grâce à une modification du système, faisant notamment intervenir une pièce additionnelle rendant parfaitement symétrique l'action du système et garantissant au surplus son action sur la selle ellemême. The present invention aims to remedy this defect, by means of a modification of the system, in particular involving an additional part making the action of the system perfectly symmetrical and guaranteeing moreover its action on the saddle itself.

A cet effet, l'invention concerne une variante du dispositif faisant l'objet du brevet antérieur précité, selon laquelle le système à sangle exerce son action par l'intermédiaire d'un étrier venant s'appuyer symétriquement sur les deux rebords de la selle, et sur le fond duquel vient s'exercer la pression dudit système à sangle, les deux extrémités de la sangle étant situées respectivement, l'une sur son moyen d'enroulement et l'autre sur un point d'accrochage solidaire du boîtier fixe dudit système. To this end, the invention relates to a variant of the device which is the subject of the aforementioned prior patent, according to which the strap system exerts its action by means of a stirrup coming to bear symmetrically on the two edges of the saddle. , and on the bottom of which is exerted the pressure of said strap system, the two ends of the strap being located respectively, one on its winding means and the other on a hooking point secured to the fixed housing of said system.

L'invention vise également divers aménagements apportés à ce dispositif, visant notamment la constitution de la sangle ainsi que des moyens destinés à éviter l'usure de la sangle dans le cas de l'utilisation de ce dispositif sur des tubes de petits diamètre. The invention also relates to various modifications made to this device, aiming in particular at the constitution of the strap as well as means intended to prevent wear of the strap in the case of the use of this device on tubes of small diameter.

L'invention sera mieux comprise grâce à la description détaillée d'un mode de réalisation, correspondant au dessin annexé sur lequel
La figure 1 est une vue latérale du dispostif selon l'invention, en place sur un assemblage, la sangle étant enlevée.The invention will be better understood thanks to the detailed description of an embodiment, corresponding to the attached drawing in which
Figure 1 is a side view of the device according to the invention, in place on an assembly, the strap being removed.

La figure 2 est une coupe par le plan vertical Il-Il de la figure 1. FIG. 2 is a section through the vertical plane II-II of FIG. 1.

La figure 3 montre en perspective la sangle elle-même dans son ensemble. Figure 3 shows in perspective the strap itself as a whole.

La figure 4 est une vue de face du côté de la sangle prévu pour s'accrocher au corps du dispositif. Figure 4 is a front view of the side of the strap intended to hang on the body of the device.

La figure 5 est une coupe suivant V-V de la figure 4. FIG. 5 is a section along V-V in FIG. 4.

La figure 6 illustre la disposition des éléments du dispositif dans le cas d'un tube principal de petit diamètre. FIG. 6 illustrates the arrangement of the elements of the device in the case of a main tube of small diameter.

La figure 7 représente une pièce utilisable comme espaceur de sangle dans le cas de la figure 6,
et la figure 8 représente une variante de montage de l'étrier sur la selle à souder.FIG. 7 represents a part which can be used as a strap spacer in the case of FIG. 6,
and FIG. 8 represents an alternative mounting of the stirrup on the saddle to be welded.

En se référant tout d'abord aux figures 1 et 2, on y a représenté le tube principal 1 sur lequel un tube radial 2 doit être soudé au moyen d'une selle galbée 3 dans laquelle est noyée la résistance de chauffage, et présentant deux rebords latéraux 4-4' ,ladite selle 3 étant maintenue en place sous pression contre le tube 1 au moyen d'une sangle 5 serrée en place grâce à un système tendeur, Comportant un rouleau 9 autour duquel une extrémité de la sangle 5 est enroulée au moyen d'un levier à cliquet 6. Referring first to Figures 1 and 2, there is shown the main tube 1 on which a radial tube 2 must be welded by means of a curved saddle 3 in which is embedded the heating resistor, and having two side edges 4-4 ', said saddle 3 being held in place under pressure against the tube 1 by means of a strap 5 tightened in place by a tensioning system, comprising a roller 9 around which one end of the strap 5 is wound by means of a ratchet lever 6.

Selon l'invention, l'autre extrémité de la sangle 5 est accrochée non pas au rebord latéral opposé 4 de la selle 3 comme dans le brevet antérieur précité, mais à un point d'accrochage 100 solidaire du boîtier fixe 101 du système 7 comme décrit aux figures 3-4-5. De même, les moyens élastiques déterminant la limite de pression exercée par la sangle consistent en un ressort axial 102, repoussant vers le bas, c'est-à-dire vers l'ensemble à souder, une plaque 103, guidée par une tige axiale 104 venant se loger dans l'embouchure du tube 2. According to the invention, the other end of the strap 5 is hooked not to the opposite lateral flange 4 of the saddle 3 as in the aforementioned prior patent, but to a hooking point 100 integral with the fixed housing 101 of the system 7 as described in Figures 3-4-5. Similarly, the elastic means determining the pressure limit exerted by the strap consist of an axial spring 102, pushing down, that is to say towards the assembly to be welded, a plate 103, guided by an axial rod 104 coming to be housed in the mouth of the tube 2.

Selon l'invention, cette plaque 103 exerce sa poussée sur une pièce auxiliaire 105, en forme ici de double étrier pour permettre le passage dé la dérivation 106. Les deux branches 106107' de cet étrier viennent s'accrocher aux rebords 4-t' de la selle, tandis que son fond 108 subit la poussée de la plaque 103, développée par la mise sous tension de la sangle 5. According to the invention, this plate 103 exerts its thrust on an auxiliary part 105, here in the form of a double stirrup to allow the passage of the bypass 106. The two branches 106107 ′ of this stirrup come to hang on the edges 4-t ′ of the saddle, while its bottom 108 undergoes the thrust of the plate 103, developed by the tensioning of the strap 5.

Il est clair que l'ensemble de ces dispositions a un double effet;
1 - les efforts transmis par le système à sangle sont parfaitement symétriques, puisqu' aucun élément n'est situé latéralement et/ou d'un seul côté,
20 lesdits efforts sont exercés sur la selle même, qui vient s'appuyer contre le tube.It is clear that all of these provisions have a double effect;
1 - the forces transmitted by the strap system are perfectly symmetrical, since no element is located laterally and / or on one side,
20 said efforts are exerted on the saddle itself, which comes to bear against the tube.

Il en résulte donc une meilleure mise en place des organes à souder et par suite une meilleure qualité de la soudure. This therefore results in better positioning of the members to be welded and consequently better quality of the weld.

Il convient de noter que, compte-tenu du piquage latéral 106, de même que l'étrier 105 doit être en deux sections 105a et 1C5b réunis par le fond 108, la sangle 5, entourant complètement le dispositif, doit être subdivisée pour s'accrocher en 100 au corps 101. C'est ce qu'illustrent les figures 3,4 et 5. Vers son extrémité opposée au rouleau 9, la sangle 5 s'ouvre en U, et à chaque branche Sa - 5b de cet U sont raccordées par des pièces cousues 109a - 109b des pattes 108a - 108b, qui s'enfilent à leur tour dans des fentes 110a - 110b de deux crochets métalliques lila - elle, pour se recoudre sur elles-mêmes en 112a - 112b.  It should be noted that, taking account of the lateral stitching 106, just as the stirrup 105 must be in two sections 105a and 1C5b joined by the bottom 108, the strap 5, completely surrounding the device, must be subdivided to hang in 100 to the body 101. This is illustrated in FIGS. 3,4 and 5. Towards its end opposite to the roller 9, the strap 5 opens in a U, and at each branch Sa - 5b of this U are connected by sewn pieces 109a - 109b of the tabs 108a - 108b, which in turn thread into slots 110a - 110b of two metallic hooks lila - elle, to sew on themselves in 112a - 112b.

L'ensemble est d'une très grande solidité, et peut supporter des tractions très élevées. Les crochets lîla - lllb viennent s'accrocher sur des crochets inverses correspondants 113b solidaires du corps 101. C'est cet accrochage qui est symboliquement désigné par 100 sur la figure 2.The set is very solid, and can withstand very high pulls. The hooks lîla - lllb are hooked onto corresponding reverse hooks 113b secured to the body 101. It is this hooking which is symbolically designated by 100 in FIG. 2.

Dans la pratique, la mise en oeuvre du dispositif selon l'invention se déroule comme suit
En premier lieu, on place la selle 3 sur le tuyau 1 à 3 'emplacement où sera pratiqué le piquage 106, et on la recouvre par l'étrier 105. On installe ensuite le système à sangle. Pour celà, on accroche d'abord les crochets 11 su; les crochets 13, l'extrémité opposée de la sangle 5 étant libre:'-0n reprend cette extrémité, par exemple avec une pince par dessous le tube 1, et on va la clipper dans le rouleau 9, de manière connue en soi.In practice, the implementation of the device according to the invention takes place as follows
Firstly, the saddle 3 is placed on the pipe 1 at 3 location where the stitching 106 will be practiced, and it is covered by the stirrup 105. Then the strap system is installed. For this, first hook the hooks 11 su; the hooks 13, the opposite end of the strap 5 being free: '- 0n takes up this end, for example with a clamp below the tube 1, and we will clip it into the roller 9, in a manner known per se.

On descend alors l'ensemble ainsi préparé dans le fond de la tranchée, et, une fois en place, on exercé la traction voulue sur la sangle 5 en actionnant le levier 6, de manière à atteindre la valeur fixée. On procède alors à la soudure de la selle 3 sur le tube 1, conformément au décrit par exemple au Brevet antérieur précité de la Déposante. The assembly thus prepared is then lowered to the bottom of the trench, and, once in place, the desired traction is exerted on the strap 5 by actuating the lever 6, so as to reach the fixed value. The saddle 3 is then welded to the tube 1, in accordance with the description, for example, of the aforementioned prior patent of the Applicant.

On peut ensuite aisément décrocher les crochets 111, car ils sont très accessibles au dessus de l'ensemble et on récupère ainsi la sangle et l'appareil. We can then easily unhook the hooks 111, because they are very accessible above the assembly and we thus recover the strap and the device.

Une fois l'appareil enlevé, on peut procéder à la perforation du tuyau I en 119, et adapter la dérivation 106 comme représenté. Once the device has been removed, it is possible to perforate the pipe I at 119, and adapt the branch 106 as shown.

Les figures 6 et 7 illustrent une variante de l'appareil utile dans le cas où le tuyau principal 1 est de faible diamètre. Figures 6 and 7 illustrate a variant of the device useful in the case where the main pipe 1 is of small diameter.

En effet, dans ce cas, la base 4-4' de la selle et les rebords 107-107' de l'étrier 105 sont situés au-dessous du plan diamètral horizontal du tube 1. La sangle 5, alors, au lieu de suivre un trajet arrondi autour du tube 1 est repliée presque à angle droit autour des rebords 107, de sorte que sous l'effet des tractions qu'elle subit, elle risque de s'user beaucoup plus vite.Indeed, in this case, the base 4-4 'of the saddle and the edges 107-107' of the stirrup 105 are located below the horizontal diametrical plane of the tube 1. The strap 5, then, instead of following a rounded path around the tube 1 is folded almost at a right angle around the flanges 107, so that under the effect of the pulls which it undergoes, it risks wearing out much more quickly.

Pour éviter cet inconvénient, il est prévu selon l'invention, d'utiliser une pièce additionnelle telle que représentée à la figure 7. Cette pièce est en forme de portion de cylindre relativement épais 114 prolongée par une aile 115 percée d'une fente 116. L'extrémité libre de la sangle 5 est glissée dans ladite fente, et une fois amenée par coulissement à la position appropriée sur la sangle, l'espaceur 114 est placé sous le tube 1. La sangle se trouve donc écartée d'autant ce qui ouvre les angles qu'elle fait à l'emplacement des rebords 107, et élimine donc l'inconvénient précité. To avoid this drawback, it is provided according to the invention, to use an additional part as shown in FIG. 7. This part is in the form of a portion of relatively thick cylinder 114 extended by a wing 115 pierced with a slot 116 The free end of the strap 5 is slid into said slot, and once it is slidably brought to the appropriate position on the strap, the spacer 114 is placed under the tube 1. The strap is therefore separated as much as possible. which opens the angles it makes at the location of the flanges 107, and therefore eliminates the aforementioned drawback.

Enfin, la figure 8 montre une variante de mise en place de l'étrier 105 sur la pièce 2-3-4. Dans ce cas, au lieu d'une tige axiale 104 traversant le fond 108 de l'étrier pour pénétrer dans le tube 2, il est prévu un bouchon 117, venant obturer ledit tube 2 et sur lequel vient s'adapter une cuvette 118 solidaire de la face inférieure du fond 108, et qui assure alors le centrage de l'appareil. On peut considérer qu'ainsi la solidité de l'ensemble se trouve améliorée. Finally, Figure 8 shows a variant of positioning the stirrup 105 on the part 2-3-4. In this case, instead of an axial rod 104 passing through the bottom 108 of the stirrup to penetrate into the tube 2, a stopper 117 is provided, closing said tube 2 and onto which a cup 118 integral fits of the underside of the bottom 108, and which then ensures the centering of the device. We can consider that thus the solidity of the whole is improved.

Il convient de noter que, dans le cas où la selle ne comporterait pas les rebords 4-4', ou si ces rebords étaient très étroits, l'étrier selon l'innvention prendra appui directement sur ladite selle, ses ailes étant éventuellement galbées pour s'y conformer. L'ouverture accidentelle des ailes de l'étrier résultera de sa résistance propre, mais sera de toutes façons contrecarrée par la pression exercée latéralement vers l'intérieur par les deux côtés de la sangle elle-même.  It should be noted that, in the case where the saddle does not have the edges 4-4 ', or if these edges were very narrow, the stirrup according to the invention will bear directly on said saddle, its wings possibly being curved for comply with it. The accidental opening of the stirrup wings will result from its own resistance, but will in any case be counteracted by the pressure exerted laterally inwards by the two sides of the strap itself.

Claims (7)

REVENDICATIONS i. Dispositif pour l'immobilisation sous pression d'un élément thermosoudable sur un autre, notamment d'une selle galbée contenant une résistance électrique de chauffage sur un tube cylindrique du type consistant en une sangle entourant la portion dudit tube opposé à ladite selle, et en un système tendeur à enroulement pour la sangle, dont le boîtier exerce une pression sur ladite selle quand la sangle est tendue, caractérisé en ce que ledit système à sangle exerce son action par l'intermédiaire d'un étrier venant s'appuyer symétriquement sur les deux côtés de la selle, et sur le fond duquel vient s'exercer la pression dudit système à sangle, les deux extrémités de la sangle étant situées respectivement, l'une sur son moyen d'enroulement et l'autre sur un point d'accrochage solidaire du boîtier fixe dudit système.i. Device for immobilizing under pressure one heat-sealable element on another, in particular a curved saddle containing an electrical heating resistance on a cylindrical tube of the type consisting of a strap surrounding the portion of said tube opposite to said saddle, and a winding tensioning system for the strap, the housing of which exerts pressure on said saddle when the strap is tight, characterized in that said strap system exerts its action by means of a stirrup coming to bear symmetrically on the two sides of the saddle, and on the bottom of which exerts the pressure of said strap system, the two ends of the strap being located respectively, one on its winding means and the other on a point of fixed attachment to the fixed housing of said system. 2. Dispositif selon la revendication 1, caractérisé en ce que les moyens élastiques de tarage de la tension exercée sur la sangle consistent en un ressort monté axialement entre le boîtier du système à sangle et le fond de l'étrier.2. Device according to claim 1, characterized in that the elastic means for calibrating the tension exerted on the strap consist of a spring mounted axially between the housing of the strap system and the bottom of the stirrup. 3. Dispositif selon les revendications 1 et 2, caractérisé en ce que la mise en place symétrique du système à sangle est assurée par une tige axiale à son boîtier et venant se loger dans l'embouchure du tube de dérivation solidaire de la selle.3. Device according to Claims 1 and 2, characterized in that the symmetrical positioning of the strap system is ensured by an axial rod in its housing and which is received in the mouth of the bypass tube secured to the saddle. 4. Dispositif selon les revendications 1 et 2, caractérisé en ce que la mise en place symétrique du système est assurée par la coopération d'un bouchon monté sur l'embouchure du tube de dérivation et d'une cuvette solidaire de la face inférieure du fond de l'étrier.4. Device according to claims 1 and 2, characterized in that the symmetrical installation of the system is ensured by the cooperation of a plug mounted on the mouth of the bypass tube and a bowl secured to the underside of the bottom of the stirrup. 5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que, le piquage étant pratiqué latéralement sur le tube radial de dérivation, l'étrier et la sangle sont subdivisés chacun en deux portions situées de part et 'autre dudit piquage. 5. Device according to any one of the preceding claims, characterized in that, the stitching being carried out laterally on the radial bypass tube, the stirrup and the strap are each subdivided into two portions located on either side of said stitching. 6. Dispositif selon la revendication 5, caractérisé en ce que l'extrémité de la sangle opposée à l'extrémité enroulée est subdivisée en deux pattes sur lesquelles sont adaptés des crochets métalliques destinés à coopérer avec des crochets correspondants du boîtier de l'appareil.6. Device according to claim 5, characterized in that the end of the strap opposite the wound end is subdivided into two tabs on which are fitted metal hooks intended to cooperate with corresponding hooks of the device housing. 7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une pièce d'espacement en forme de portion de cylirdre est interposée entre la sangle et le dessous du tube principal. 7. Device according to any one of the preceding claims, characterized in that a spacer in the form of a portion of a cylinder is interposed between the strap and the underside of the main tube.
FR8519098A 1985-12-19 1985-12-19 Improvement to devices for fixing one fusion-bondable element onto another Pending FR2591940A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8519098A FR2591940A1 (en) 1985-12-19 1985-12-19 Improvement to devices for fixing one fusion-bondable element onto another

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Application Number Priority Date Filing Date Title
FR8519098A FR2591940A1 (en) 1985-12-19 1985-12-19 Improvement to devices for fixing one fusion-bondable element onto another

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FR2591940A1 true FR2591940A1 (en) 1987-06-26

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GB2453569A (en) * 2007-10-11 2009-04-15 Uponor Innovation Ab Purge tee assembly
WO2016023540A1 (en) * 2014-08-15 2016-02-18 Friatec Aktiengesellschaft Tapping fitting
WO2016101950A1 (en) * 2014-12-22 2016-06-30 Friatec Aktiengesellschaft Arrangement for mounting a saddle component on a pipe
WO2018014066A1 (en) * 2016-07-22 2018-01-25 "Agru" Kunststofftechnik Gesellschaft M.B.H. Method and device for mounting a tubular branching element made of thermoplastic material to a main pipe made of thermoplastic material

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US1353568A (en) * 1919-11-25 1920-09-21 Frederick L Wendler Pipe-vise
US1399885A (en) * 1921-03-02 1921-12-13 Ryan John Henry Chain clamp
FR39846E (en) * 1931-03-07 1932-03-18 Advanced Pipe Fittings
DE691408C (en) * 1938-10-11 1940-06-04 Otto Pannicke Clamping and sealing device
US2498582A (en) * 1945-03-19 1950-02-21 Schoenberger John Henry Flexible jaw wrench having multiple adjusting means
US2566108A (en) * 1947-06-07 1951-08-28 Joe C Anderson Chain wrench
US3723229A (en) * 1970-05-01 1973-03-27 W Hutton Fusion tool
FR2231915A1 (en) * 1973-06-04 1974-12-27 Fournier Henri Temporary coupling for pipe and machine - has shoes on levers controlled by double threaded bolt carrying shoe
FR2468061A1 (en) * 1979-10-18 1981-04-30 Boisset Michel Branch pipe union to main - comprises sole-plate with quick action coupling to tubular body accommodating joint block
EP0088703A2 (en) * 1982-03-10 1983-09-14 Innovation Technique Process and device for connecting a pipe to a pipeline

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1353568A (en) * 1919-11-25 1920-09-21 Frederick L Wendler Pipe-vise
US1399885A (en) * 1921-03-02 1921-12-13 Ryan John Henry Chain clamp
FR39846E (en) * 1931-03-07 1932-03-18 Advanced Pipe Fittings
DE691408C (en) * 1938-10-11 1940-06-04 Otto Pannicke Clamping and sealing device
US2498582A (en) * 1945-03-19 1950-02-21 Schoenberger John Henry Flexible jaw wrench having multiple adjusting means
US2566108A (en) * 1947-06-07 1951-08-28 Joe C Anderson Chain wrench
US3723229A (en) * 1970-05-01 1973-03-27 W Hutton Fusion tool
FR2231915A1 (en) * 1973-06-04 1974-12-27 Fournier Henri Temporary coupling for pipe and machine - has shoes on levers controlled by double threaded bolt carrying shoe
FR2468061A1 (en) * 1979-10-18 1981-04-30 Boisset Michel Branch pipe union to main - comprises sole-plate with quick action coupling to tubular body accommodating joint block
EP0088703A2 (en) * 1982-03-10 1983-09-14 Innovation Technique Process and device for connecting a pipe to a pipeline

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2453569A (en) * 2007-10-11 2009-04-15 Uponor Innovation Ab Purge tee assembly
GB2453569B (en) * 2007-10-11 2012-04-25 Radius Systems Ltd Purge tee assembley
WO2016023540A1 (en) * 2014-08-15 2016-02-18 Friatec Aktiengesellschaft Tapping fitting
CN106662279A (en) * 2014-08-15 2017-05-10 费亚泰克股份公司 Tapping fitting
US10024475B2 (en) 2014-08-15 2018-07-17 Friatec Aktiengesellschaft Tapping fitting
RU2677770C2 (en) * 2014-08-15 2019-01-21 Фриатек Гмбх Fitting for drilling
AU2015303587B2 (en) * 2014-08-15 2019-01-24 Aliaxis Deutschland GmbH Tapping fitting
WO2016101950A1 (en) * 2014-12-22 2016-06-30 Friatec Aktiengesellschaft Arrangement for mounting a saddle component on a pipe
WO2018014066A1 (en) * 2016-07-22 2018-01-25 "Agru" Kunststofftechnik Gesellschaft M.B.H. Method and device for mounting a tubular branching element made of thermoplastic material to a main pipe made of thermoplastic material

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