FR2605709A1 - Moulded connection end-piece for tubes, flexible piping and the like - Google Patents
Moulded connection end-piece for tubes, flexible piping and the like Download PDFInfo
- Publication number
- FR2605709A1 FR2605709A1 FR8614659A FR8614659A FR2605709A1 FR 2605709 A1 FR2605709 A1 FR 2605709A1 FR 8614659 A FR8614659 A FR 8614659A FR 8614659 A FR8614659 A FR 8614659A FR 2605709 A1 FR2605709 A1 FR 2605709A1
- Authority
- FR
- France
- Prior art keywords
- arcuate segments
- end piece
- piece according
- external wall
- core
- 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
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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/221—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the external piece comprising segments hingedly connected to an interior part
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/261—Moulds having tubular mould cavities
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/133—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using flexible hooks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0256—Arrangements for coupling connectors with flow lines
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0037—Moulding articles or parts thereof without parting line
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Dans de nombreuses techniques, on met en oeuvre des embouts en forme de douille qui sont destinés à recevoir une tubulure, par exemple une durite, sur leur paroi externe. Dans ces domaines de la technique, il est évidemment nécessaire qu'une étanchéité parfaite existe entre l'embout et la durite ou autres tubulures et, par conséquent, il est indispensable que la paroi externe de l'embout soit parfaitement lisse. In many techniques, tips in the form of a socket are used which are intended to receive a tube, for example a hose, on their external wall. In these fields of technology, it is obviously necessary that a perfect seal exists between the nozzle and the hose or other tubing and, therefore, it is essential that the outer wall of the nozzle is perfectly smooth.
Les conditions qui sont exposées dans ce qui précède s'appliquent tout particulièrement aux embouts de boite à eau d'échangeur de chaleur. The conditions which are set out in the foregoing apply particularly to the ends of a heat exchanger water box.
En effet, les boîtes à eau portent généralement plusieurs embouts qui sont reliés à différents organes notamment à des tubulures d'amenée et de sortie d'un liquide à refroidir, à un conduit de dégazage, à un conduit menant à une nourrice, etc. In fact, water boxes generally carry several nozzles which are connected to different organs in particular to pipes for supplying and leaving a liquid to be cooled, to a degassing pipe, to a pipe leading to a manifold, etc.
Dans les réalisations connues, les embouts viennent de moulage avec les boîtes à eau et, compte-tenu de leur forme complexe, les embouts sont le plus souvent formés par les parois de deux demi-coquilles assemblées d'un même moule. In known embodiments, the tips come from molding with the water boxes and, given their complex shape, the tips are most often formed by the walls of two half-shells assembled from the same mold.
Il résulte du mode de fabrication ci-dessus que de petites nervures apparaissent au niveau du plan de joint des demi-coquilles de moulage. It follows from the above manufacturing method that small ribs appear at the joint plane of the molding half-shells.
L'existence de ces nervures nécessite un meulage avant que la boîte à eau puisse être mise en oeuvre sur un échangeur de chaleur devant être relié à des tubulures. The existence of these ribs requires grinding before the water box can be implemented on a heat exchanger to be connected to pipes.
L'opération de meulage ou autres moyens de rectification constitue une sujétion qui augmente le prix de l'objet fini. The grinding operation or other means of rectification constitutes a subjection which increases the price of the finished object.
L'invention vise à supprimer toute opération de reprise après le moulage d'un embout utilisable notamment, mais non exclusivement, en combinaison avec une boîte à eau. The invention aims to eliminate any recovery operation after molding a nozzle which can be used in particular, but not exclusively, in combination with a water box.
Conformément à l'invention, l'embout moulé de raccordement pour tubes, durites et analogues comporte une âme cylindrique lisse formée par moulage en une même pièce que des segments arqués qui l'entourent à distance de manière à délimiter un espace libre dans lequel est engagée l'extrémité du tube, durite ou analogue, des moyens de serrage provoquant la déformation élastique des segments arqués pour serrer la tubulure contre la paroi externe lisse de l'âme. According to the invention, the molded connection end piece for tubes, hoses and the like comprises a smooth cylindrical core formed by molding in one piece as arcuate segments which surround it at a distance so as to delimit a free space in which is engaged the end of the tube, hose or the like, clamping means causing the elastic deformation of the arcuate segments to clamp the tubing against the smooth outer wall of the core.
Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit. Various other characteristics of the invention will also emerge from the detailed description which follows.
Des formes de réalisation de l'objet de l'invention sont représentées, à titre d'exemples non limitatifs, aux dessins annexés. Embodiments of the object of the invention are shown, by way of nonlimiting examples, in the accompanying drawings.
La fig. 1 est une coupe-élévation transversale en partie schématique d'un échangeur de chaleur comportant au moins un embout conforme à l'invention. Fig. 1 is a partly schematic cross-sectional elevation of a heat exchanger comprising at least one end piece according to the invention.
La fig. 2 est une coupe#de l'embout vue suivant la ligne Il-Il de la fig. 1. Fig. 2 is a section # of the nozzle seen along the line Il-Il of FIG. 1.
La fig. 3 est une coupe-élévation d'une variante de réalisation de l'embout selon la fig. 1. Fig. 3 is a sectional elevation of an alternative embodiment of the nozzle according to FIG. 1.
La fig. 4 est une coupe-élévation de l'embout apparaissant à la fig. 1, cette coupe illustrant un exemple de réalisation d'un appareillage permettant la fabrication dudit embout. Fig. 4 is a sectional elevation of the tip appearing in FIG. 1, this section illustrating an exemplary embodiment of an apparatus allowing the manufacture of said tip.
La fig. 1 illustre un embout de raccordement destiné à permettre la liaison d'une pièce, par exemple une boite à eau 1 avec une tubulure 2 qui peut être un tube, une durite ou analogue. Fig. 1 illustrates a connection end piece intended to allow the connection of a part, for example a water box 1 with a tube 2 which may be a tube, a hose or the like.
L'embout comporte une âme cylindrique 3 dont le bord inférieur forme avantageusement un biseau 4. L'âme cylindrique 3 est entourée par des segments arqués 5 qui sont séparés par des fentes 6. The end piece comprises a cylindrical core 3, the lower edge of which advantageously forms a bevel 4. The cylindrical core 3 is surrounded by arcuate segments 5 which are separated by slots 6.
Il est avantageux, comme le montre le dessin, que les segments arqués 5 ou au moins certains d'entre eux présentent des saillies internes 7 et un rebord externe 8 formant une butée. It is advantageous, as the drawing shows, that the arcuate segments 5 or at least some of them have internal projections 7 and an external flange 8 forming a stop.
L'intervalle séparant la paroi externe de l'âme 3 de la paroi interne des segments arqués 5 correspond sensiblement à l'épaisseur de la tubulure 2. Comme le montre le dessin, l'embout décrit ci-dessus est de préférence formé d'une seule pièce avec un objet à raccorder à la tubulure 2 par exemple la boite à eau 1 qui est destinée à être montée sur une plaque collectrice 9 d'un échangeur de chaleur comportant des tubes 10 et des dissipateurs 11. The interval separating the outer wall of the core 3 from the inner wall of the arcuate segments 5 corresponds substantially to the thickness of the tubing 2. As shown in the drawing, the end piece described above is preferably formed of a single piece with an object to be connected to the pipe 2, for example the water box 1 which is intended to be mounted on a collecting plate 9 of a heat exchanger comprising tubes 10 and dissipators 11.
La fig. 4 montre qu'il est aisé de fabriquer l'ensemble embout-boite à eau par moulage en résine synthétique par exemple en polyamide en utilisant dans le moule un noyau 12 destiné à délimiter la paroi interne 3a de l'âme 3 et une couronne 13 destinée à former, d'une part, la paroi externe 3b de l'âme 3 et, d'autre part, la paroi interne Sa des segments arqués 5 dont la paroi externe 5b est alors formée par des demi-coquilles mobiles 14, 15. Fig. 4 shows that it is easy to manufacture the mouthpiece-water box assembly by molding in synthetic resin, for example in polyamide, using in the mold a core 12 intended to delimit the internal wall 3a of the core 3 and a crown 13 intended to form, on the one hand, the external wall 3b of the core 3 and, on the other hand, the internal wall Sa of the arcuate segments 5 whose external wall 5b is then formed by movable half-shells 14, 15 .
La disposition décrite ci-dessus permet, après l'injection de la matière constitutive de l'embout et de la boite à eau, de dégager l'embout en ouvrant les demicoquilles 14 puis en déplaçant le noyau 12 et la couronne 13 suivant la flèche F1. The arrangement described above allows, after the injection of the constituent material of the nozzle and of the water box, to release the nozzle by opening the half-shells 14 then by moving the core 12 and the crown 13 according to the arrow F1.
Etant donné que la couronne 13 servant au moulage est une pièce de révolution et que son extraction est assurée par coulissement, il n'existe ni bavure ni protubérance ni trace de carottes ou autres saillies sur la paroi externe 3b de l'âme 3 qui est ainsi parfaitement lisse. Since the crown 13 used for molding is a part of revolution and that its extraction is ensured by sliding, there is no burr or protuberance or trace of carrots or other protrusions on the external wall 3b of the core 3 which is thus perfectly smooth.
Pour utiliser l'embout décrit dans ce qui précède, on engage simplement la tubulure 2 sur l'âme 3 de sorte que l'extrémité de cette tubulure se trouve emprisonnée entre ladite âme 3 et les segments arqués 5. To use the nozzle described in the above, the tubing 2 is simply engaged on the core 3 so that the end of this tubing is trapped between said core 3 and the arcuate segments 5.
On met ensuite en place un moyen de serrage 16, par exemple un collier sur les segments arqués ce qui a pour effet de déformer élastiquement ces segments arqués 5 et de plaquer à force la paroi interne de la tubulure 2 sur la paroi externe de l'âme 3. Le serrage exercé par le moyen 16 fait éventuellement pénétrer légèrement la ou les saillies internes 7 des segments arqués 5 dans la matière de la tubulure 2 ce qui assure un verrouillage de cette dernière. Le rebord 8 formant butée empêche le glissement du moyen 16. A clamping means 16 is then put in place, for example a collar on the arcuate segments which has the effect of elastically deforming these arcuate segments 5 and forcing the internal wall of the tube 2 to be forced onto the external wall of the core 3. The tightening exerted by the means 16 possibly causes the internal projection (s) 7 of the arcuate segments 5 to penetrate slightly into the material of the tube 2 which ensures the latter is locked. The rim 8 forming a stop prevents the means 16 from sliding.
La fig. 3 illustre un développement de l'invention suivant lequel les segments arqués 5 présentent une paroi externe légèrement conique sur une partie au moins de leur longueur. Fig. 3 illustrates a development of the invention according to which the arcuate segments 5 have a slightly conical outer wall over at least part of their length.
En outre, un manchon à baïonnette ou autre moyen de retenue 17 est formé au pied des segments arqués 5 sur une partie au moins de leur périphérie. In addition, a bayonet sleeve or other retaining means 17 is formed at the foot of the arcuate segments 5 over at least part of their periphery.
Cette disposition permet d'utiliser une bague à balonnette 18 pour assurer le serrage des segments arqués 5 sur la partie de la tubulure 2 engagée sur l'âme 3. This arrangement makes it possible to use a balonette ring 18 to ensure the tightening of the arcuate segments 5 on the part of the tube 2 engaged on the core 3.
On ne sortirait évidemment pas du cadre de l'invention en prévoyant d'autres moyens pour assurer le serrage des segments arqués 5, par exemple la périphérie externe conique de ceux-ci peut être filetée pour recevoir une bague taraudée. It would obviously not depart from the scope of the invention to provide other means for tightening the arcuate segments 5, for example the conical outer periphery of these can be threaded to receive a threaded ring.
L'invention n'est pas limitée aux exemples de réalisation représentés et décrits en détail, car diverses modifications peuvent y être apportées sans sortir de son cadre The invention is not limited to the embodiments shown and described in detail, because various modifications can be made without departing from its scope.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8614659A FR2605709A1 (en) | 1986-10-22 | 1986-10-22 | Moulded connection end-piece for tubes, flexible piping and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8614659A FR2605709A1 (en) | 1986-10-22 | 1986-10-22 | Moulded connection end-piece for tubes, flexible piping and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2605709A1 true FR2605709A1 (en) | 1988-04-29 |
Family
ID=9340067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8614659A Pending FR2605709A1 (en) | 1986-10-22 | 1986-10-22 | Moulded connection end-piece for tubes, flexible piping and the like |
Country Status (1)
Country | Link |
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FR (1) | FR2605709A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998055793A1 (en) * | 1997-06-04 | 1998-12-10 | Robert Bosch Gmbh | Device for attaching a corrugated tube to a connection piece |
US6415488B1 (en) * | 1998-05-13 | 2002-07-09 | Smc Kabushiki Kaisha | Tube joint and apparatus for producing the same |
EP1775509A1 (en) * | 2005-10-14 | 2007-04-18 | Seprio Plast ZN S.r.l. | Method of fabricating a molded hydraulic joint |
WO2014207392A1 (en) * | 2013-06-28 | 2014-12-31 | Sartorius Stedim Fmt Sas | Fluid connector having integrated pipe clamping |
GB2521479A (en) * | 2013-12-20 | 2015-06-24 | Gm Global Tech Operations Inc | Joining means and method for joining at least two piping elements |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434219A (en) * | 1944-04-17 | 1948-01-06 | Fred C Morrison | Hose coupling |
GB940412A (en) * | 1961-04-11 | 1963-10-30 | French & Collett Ltd | Improvements in or relating to flexible hose fittings |
US3752436A (en) * | 1970-12-21 | 1973-08-14 | Phillips Petroleum Co | Apparatus for molding articles having a nonlinear chamber |
FR2552537A1 (en) * | 1983-09-27 | 1985-03-29 | Valeo | Casing fitted with a pipe, particularly the water tank of a car radiator, and its method of manufacture |
DE3446568A1 (en) * | 1984-12-20 | 1986-07-10 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Method for mounting an elastic hose on a stiff pipe nozzle |
-
1986
- 1986-10-22 FR FR8614659A patent/FR2605709A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434219A (en) * | 1944-04-17 | 1948-01-06 | Fred C Morrison | Hose coupling |
GB940412A (en) * | 1961-04-11 | 1963-10-30 | French & Collett Ltd | Improvements in or relating to flexible hose fittings |
US3752436A (en) * | 1970-12-21 | 1973-08-14 | Phillips Petroleum Co | Apparatus for molding articles having a nonlinear chamber |
FR2552537A1 (en) * | 1983-09-27 | 1985-03-29 | Valeo | Casing fitted with a pipe, particularly the water tank of a car radiator, and its method of manufacture |
DE3446568A1 (en) * | 1984-12-20 | 1986-07-10 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Method for mounting an elastic hose on a stiff pipe nozzle |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998055793A1 (en) * | 1997-06-04 | 1998-12-10 | Robert Bosch Gmbh | Device for attaching a corrugated tube to a connection piece |
CN1104581C (en) * | 1997-06-04 | 2003-04-02 | 罗伯特·博施有限公司 | Structure device for attaching corrugated tube to sleeve |
US6415488B1 (en) * | 1998-05-13 | 2002-07-09 | Smc Kabushiki Kaisha | Tube joint and apparatus for producing the same |
US6578879B2 (en) * | 1998-05-13 | 2003-06-17 | Smc Kabushiki Kaisha | Tube joint with connecting member and guide member configured to be prevented from disengagement |
US6880864B2 (en) | 1998-05-13 | 2005-04-19 | Smc Kabushiki Kaisha | Tube joint with attachment and detachment mechanism |
US7093862B2 (en) | 1998-05-13 | 2006-08-22 | Smc Kabushiki Kaisha | Tube joint and apparatus for producing the same |
US7210708B2 (en) | 1998-05-13 | 2007-05-01 | Smc Kabushiki Kaisha | Tube joint |
EP1775509A1 (en) * | 2005-10-14 | 2007-04-18 | Seprio Plast ZN S.r.l. | Method of fabricating a molded hydraulic joint |
WO2014207392A1 (en) * | 2013-06-28 | 2014-12-31 | Sartorius Stedim Fmt Sas | Fluid connector having integrated pipe clamping |
FR3007818A1 (en) * | 2013-06-28 | 2015-01-02 | Sartorius Stedim Biotech | FLUIDIC CONNECTOR WITH INTEGRATED TUBE CLAMP. |
US10228085B2 (en) | 2013-06-28 | 2019-03-12 | Sartorius Stedim Fmt Sas | Fluid connector having integrated pipe clamping |
GB2521479A (en) * | 2013-12-20 | 2015-06-24 | Gm Global Tech Operations Inc | Joining means and method for joining at least two piping elements |
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