FR2465941A1 - Gas-tight joint for gas appliance feed pipes - has double concave bellmouth compressed by profiled cap nut - Google Patents

Gas-tight joint for gas appliance feed pipes - has double concave bellmouth compressed by profiled cap nut Download PDF

Info

Publication number
FR2465941A1
FR2465941A1 FR8020235A FR8020235A FR2465941A1 FR 2465941 A1 FR2465941 A1 FR 2465941A1 FR 8020235 A FR8020235 A FR 8020235A FR 8020235 A FR8020235 A FR 8020235A FR 2465941 A1 FR2465941 A1 FR 2465941A1
Authority
FR
France
Prior art keywords
gas
bellmouth
flared
compressed
cap nut
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
FR8020235A
Other languages
French (fr)
Other versions
FR2465941B1 (en
Inventor
Shigeo Kono
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co Ltd
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 Clarion Co Ltd filed Critical Clarion Co Ltd
Publication of FR2465941A1 publication Critical patent/FR2465941A1/en
Application granted granted Critical
Publication of FR2465941B1 publication Critical patent/FR2465941B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall

Abstract

The copper or aluminium feed pipe (P) has a double bellmouth (F) formed at the end to be connected to the gas appliance. This double bellmouth is concave. When the tapered surface (3') of the screwed part of the appliance is brought into contact with the concave bellmouth and tightened by the cap nut (4) the bellmouth is compressed firstly at (a) then (b) and finally (c). This arrangement enables a gas-tight joint to be made with very little tightening effort.

Description

La présente invention se rapporte à un joint évasé utilisable comme joint de tuyauterie pour appareils à gaz. The present invention relates to a flared gasket that can be used as a pipe joint for gas appliances.

Un joint évasé connu a la configuration générale illustrée sur la figure 1 ou un tube I en un métal tel que. de l'aluminium ou du cuivre est dilaté à une extrémité pour former une partie évasée 2. La partie évasée 2 est en engagement avec une face extrême éffilée 3' d'une partie filetée 3 d'un l'appareil à gaz ou autre, et on utilise un écrou à chape 4 pour presser une face interne de la partie évasée 2 contre la face extrêmeéffilée 3'. Grâce à sa simplicité de structure et sa facilité d'utilisation ce joint évasé a largement été utilisé. A known flared joint has the general configuration illustrated in Figure 1 or a tube I of a metal such as. aluminum or copper is expanded at one end to form a flared portion 2. The flared portion 2 is in engagement with a tapered end face 3 'of a threaded portion 3 of a gas appliance or the like, and a clevis nut 4 is used to press an inner face of the flared portion 2 against the tapered end face 3 '. Thanks to its simplicity of structure and its ease of use this flared joint has been widely used.

Cependant, ceint évasé présente un inconvénient parce qu'il peut y avoir fuite de gaz quand la face interne de la partie évasée n'est pas bien pressée de façon étanche conte la la face extrême éffilée 3' selon le matériau. ou la dureté du tube I ou la précision de la partie-évasée 2. However, flared waist has a disadvantage because there may be gas leakage when the inner face of the flared portion is not tightly squeezed tightly to the flared end face 3 'depending on the material. or the hardness of tube I or the accuracy of part-flared 2.

Pour cette raison, l'angle de dilatation e de la partie évasée 2 est déterminé et la longeur 1 de la partie évasée 2 s'étendant à cet angle est déterminée pour être aussi grands que possible afin d'augmenter l'aim de contact avec la partie filetée 3 pour assurer une étanchéité souhaitée avec elle. For this reason, the expansion angle e of the flared portion 2 is determined and the length 1 of the flared portion 2 extending at this angle is determined to be as large as possible in order to increase the contact magnet with the threaded portion 3 to provide a desired seal with it.

Cependant, avec l'allongement de la longueur 1 de la partie évasée 2, la pression de serrage requise pour l'écrou à chape augmente. Par conséquent, si la pression de serrage dépasse une limite, les composants peuvent éventuellement être endommagés et une opération supplémentaire et spéciale est requise. Ainsi, cette proposition ne peut apporter une solution satisfaisante au problème ci-dessus décrit
La présente invention a par conséquent pour objet un joint évasé permettant d'éviter les inconvénients mis en cause dans les joints évasés traditionnels.However, with the lengthening of the length 1 of the flared portion 2, the clamping pressure required for the clevis nut increases. Therefore, if the clamping pressure exceeds a limit, the components may be damaged and additional and special operation is required. Thus, this proposal can not provide a satisfactory solution to the problem described above.
The present invention therefore relates to a flared joint to avoid the disadvantages involved in traditional flared joints.

Selon la présente invention, on prévoit un joint évasé composé d'une partie évasée d'un tube à relier à un appareil à gaz ou autre, cette partie évasée étant formée en étendant une partie extrême du tube et en prévoyant une configuration concave sur sa face interne, qui doit être pressée contre une face extrême effilée d'une partie filetée de l'appareil à gaz ou autre. According to the present invention, there is provided a flare gasket composed of a flared portion of a tube to be connected to a gas appliance or the like, this flared portion being formed by extending an end portion of the tube and providing a concave configuration on its inner face, which must be pressed against a tapered end face of a threaded part of the gas appliance or the like.

L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaitront plus clairement au cours de la descrttion explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustre un mode de réalisation de l'invention et dans lesquels
- la figure 1 est une coupe longitudinale d'un joint évasé connu;
- la figure 2 est un détail du joint évasé illustré sur la figure i; et
- la figure 3 est une vue en élévation latérale partiellement en coupe, d'un joint évasé selon la présente invention.The invention will be better understood, and other objects, features, details and advantages thereof will become more clearly apparent in the following explanatory description with reference to the accompanying diagrammatic drawings given by way of example only. embodiment of the invention and in which
- Figure 1 is a longitudinal section of a known flare joint;
FIG. 2 is a detail of the flared joint illustrated in FIG. and
FIG. 3 is a partially sectioned side elevational view of a flare gasket according to the present invention.

En se référant maintenant à la figure 3 > elle illustre un joint évasé ayant un double évasement selon la présente invention. Referring now to FIG. 3, it illustrates a flared joint having a double flare according to the present invention.

Sur la figure 3, la lettre P désigne un tube fait, par exemple, en aluminium, et qui doit être relié à des appareils à gaz et autres. L'extrémité du tube P est étendue et dilatée pour former un double évasement F ayant une face interne de configuration concave, courbée comme un segment de l'intérieur d'un cercle ou une sphère creuse. In Figure 3, the letter P designates a tube made, for example, of aluminum, and which must be connected to gas appliances and others. The end of the tube P is extended and expanded to form a double flare F having an inner face of concave configuration, curved as a segment of the inside of a circle or a hollow sphere.

Quand la face interne concave ainsi formée de l'évase- ment F est amenée en contact avec une face extrême éffilée 3' d'une partie filetée 3 d'un appareil à gaz et autre, et qAun écrou à chape 4 est serré, la face interne de l'évasement F est comprimée et aplatie à partir de la partie en saillie ou en protubérance, c'est-a-dire dans la séquence a , b c > ainsi la face interne de 1' évasement
F est pressée très serrée contre la face extrêmeéffilée 3'.When the concave inner face thus formed of the flare F is brought into contact with a flared end face 3 'of a threaded portion 3 of a gas appliance and the like, and a clevis nut 4 is tightened, the inner face of the flare F is compressed and flattened from the protruding or protruding portion, i.e. in the sequence a, bc> thus the inner face of the flare
F is pressed very tight against the extreme face 3 '.

Comme la face interne de l'évasement F est aplatie dans la séquence comme on l'a décrit ci-dessus tandis que la face extrême refilée 3' est amenée en contact avec elle, même une faible pression de serrage peut donner une connexion très étanche entre le joint évasé F et la face extrêmeéffilée 3'. As the inner face of the flare F is flattened in the sequence as described above while the end face 3 'is brought into contact with it, even a low clamping pressure can give a tight connection. between the flared seal F and the tapered face 3 '.

Tandis qu' un joint évasé ayant un double évasement a été décrit ci-dessus comme mode de réalisation préféré de l'invention, elle s'applique également à un joint évasé ayant un seul évasement. While a flared gasket having a double flare has been described above as a preferred embodiment of the invention, it also applies to a flared gasket having a single flare.

Comme on l'a décrit ci-dessus, la présente invention a pour excellent effet que la face d'évasement peut être pressée très serrée contre la face extrêmeéffilée de la partie filetée, ce qui permet d'obtenir un accouplement souhaité par une force de serrage relativement faible du fait de la configuration concave de la face interne de l'évasement. Ansi, la présente invention peut offrir un joint évasé approprié comme joint de tuyauterie pour appareils à gaz. As described above, the present invention has an excellent effect that the flaring face can be pressed very tight against the end face of the threaded portion, thereby obtaining a desired coupling by a force of relatively small tightening due to the concave configuration of the inner face of the flare. In accordance with the present invention, the present invention can provide a suitable flared gasket as a piping gasket for gas appliances.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et représenté qui n'a été donné qu'à titre d'exemple. En particulier, elle comprend tous les moyens constituant des équivalents techniques des moyens décrits, ainsi que leurs combinaisons si celles-ci sont exécutées suivant son esprit et mises en oeuvre dans le cadre de la protection comme revendiquée.  Of course, the invention is not limited to the embodiment described and shown which has been given by way of example. In particular, it comprises all the means constituting technical equivalents of the means described, and their combinations if they are executed according to its spirit and implemented in the context of protection as claimed.

Claims (3)

REVENDICATIONS 1. Joint évasé caractérisé en ce qu'il se compose d'une partie évasée d'un tube à relier à un appareil à gaz, ladite partie évasée (F) étant formée en étendant une partie extrême dudit tube (P) et en formant une configuration concave sur sa face interne qui doit être pressée contre une face extrême effilée (3') d'une partie filetée (3) de l'appareil à gaz. Flare gasket characterized in that it consists of a flared portion of a tube to be connected to a gas appliance, said flared portion (F) being formed by extending an end portion of said tube (P) and forming a concave configuration on its inner face which must be pressed against a tapered end face (3 ') of a threaded portion (3) of the gas appliance. 2. Joint selon la revendication 1 caractérisé en ce que la partie évasée précitée a un double évasement. 2. Joint according to claim 1 characterized in that the aforesaid flared portion has a double flare. 3. Joint selon l'une quelconque des revendications 1 ou 2 caractérisé en ce que la partie évasée précitée est pressée contre la face extrême effilée précitée de la partie filetée précitée par un écrou à chape.  3. Joint according to any one of claims 1 or 2 characterized in that the aforesaid flared portion is pressed against the aforementioned tapered end face of the aforementioned threaded portion by a clevis nut.
FR8020235A 1979-09-21 1980-09-19 Gas-tight joint for gas appliance feed pipes - has double concave bellmouth compressed by profiled cap nut Granted FR2465941A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979129873U JPS5848456Y2 (en) 1979-09-21 1979-09-21 flare fittings

Publications (2)

Publication Number Publication Date
FR2465941A1 true FR2465941A1 (en) 1981-03-27
FR2465941B1 FR2465941B1 (en) 1983-12-30

Family

ID=15020410

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8020235A Granted FR2465941A1 (en) 1979-09-21 1980-09-19 Gas-tight joint for gas appliance feed pipes - has double concave bellmouth compressed by profiled cap nut

Country Status (2)

Country Link
JP (1) JPS5848456Y2 (en)
FR (1) FR2465941A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719585A1 (en) * 1986-06-27 1988-01-14 Volkswagen Ag Releasable and non-releasable, sealed connection of two neighbouring pipelines
DE4232796A1 (en) * 1991-10-02 1993-04-08 Usui Kokusai Sangyo Kk CONICAL EXTENDED ARRANGEMENT FOR CONNECTING METAL PIPING
DE4232797A1 (en) * 1991-10-02 1993-04-08 Usui Kokusai Sangyo Kk CONICAL EXTENDED DOUBLE WALL ARRANGEMENT FOR CONNECTING METAL PIPES
WO1995006219A1 (en) * 1993-08-25 1995-03-02 Itt Manufacturing Enterprises, Inc. Mounting apparatus with reduced resistance bead seal
DE9420502U1 (en) * 1994-11-30 1995-07-20 Witzenmann Metallschlauchfab Connection between a pipe and a tubular line element
US5489127A (en) * 1993-08-25 1996-02-06 Itt Corporation Mounting apparatus with reduced resistance bead seal
US6663146B1 (en) * 1998-10-29 2003-12-16 Toyota Jidosha Kabushiki Kaisha Single flare tube and joint structure of single flare tube
WO2015117274A1 (en) * 2014-02-09 2015-08-13 孙海潮 Connection screw nut for dedicated use in split air conditioning refrigerant connection pipelines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910004749B1 (en) * 1988-12-31 1991-07-10 삼성전관 주식회사 System of soldering biased yoke

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413089A (en) * 1944-07-10 1946-12-24 Roy W Solomon Fitting
US2545168A (en) * 1948-10-07 1951-03-13 Brockway Company Pipe connector
DE1891703U (en) * 1963-09-02 1964-04-23 Bernh Drost K G DOUBLE TUBE FITTING.
US3258278A (en) * 1960-06-17 1966-06-28 Boeing Co Lightweight fluid coupling system
US3451698A (en) * 1966-07-20 1969-06-24 Richard O Chakroff Coupling having concentric spherical surfaces sealed by line contact
US3715800A (en) * 1969-12-16 1973-02-13 Mueller Co Method of making a coupling joint
FR2230923A1 (en) * 1973-05-24 1974-12-20 Peugeot & Renault Hydraulic pipe coupling for vehicle brakes - ends of pipes are deformed to produce cooperating conical seats

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5349052Y2 (en) * 1973-08-17 1978-11-24

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413089A (en) * 1944-07-10 1946-12-24 Roy W Solomon Fitting
US2545168A (en) * 1948-10-07 1951-03-13 Brockway Company Pipe connector
US3258278A (en) * 1960-06-17 1966-06-28 Boeing Co Lightweight fluid coupling system
DE1891703U (en) * 1963-09-02 1964-04-23 Bernh Drost K G DOUBLE TUBE FITTING.
US3451698A (en) * 1966-07-20 1969-06-24 Richard O Chakroff Coupling having concentric spherical surfaces sealed by line contact
US3715800A (en) * 1969-12-16 1973-02-13 Mueller Co Method of making a coupling joint
FR2230923A1 (en) * 1973-05-24 1974-12-20 Peugeot & Renault Hydraulic pipe coupling for vehicle brakes - ends of pipes are deformed to produce cooperating conical seats

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719585A1 (en) * 1986-06-27 1988-01-14 Volkswagen Ag Releasable and non-releasable, sealed connection of two neighbouring pipelines
DE4232796A1 (en) * 1991-10-02 1993-04-08 Usui Kokusai Sangyo Kk CONICAL EXTENDED ARRANGEMENT FOR CONNECTING METAL PIPING
DE4232797A1 (en) * 1991-10-02 1993-04-08 Usui Kokusai Sangyo Kk CONICAL EXTENDED DOUBLE WALL ARRANGEMENT FOR CONNECTING METAL PIPES
WO1995006219A1 (en) * 1993-08-25 1995-03-02 Itt Manufacturing Enterprises, Inc. Mounting apparatus with reduced resistance bead seal
US5489127A (en) * 1993-08-25 1996-02-06 Itt Corporation Mounting apparatus with reduced resistance bead seal
US5529349A (en) * 1993-08-25 1996-06-25 Itt Corporation Mounting apparatus with reduced resistance bead seal
US6327771B1 (en) 1993-08-25 2001-12-11 Itt Industries, Inc. Method of forming a flared-end pipe with a reduced resistance bead seal and method of use
DE9420502U1 (en) * 1994-11-30 1995-07-20 Witzenmann Metallschlauchfab Connection between a pipe and a tubular line element
US6663146B1 (en) * 1998-10-29 2003-12-16 Toyota Jidosha Kabushiki Kaisha Single flare tube and joint structure of single flare tube
WO2015117274A1 (en) * 2014-02-09 2015-08-13 孙海潮 Connection screw nut for dedicated use in split air conditioning refrigerant connection pipelines

Also Published As

Publication number Publication date
FR2465941B1 (en) 1983-12-30
JPS5848456Y2 (en) 1983-11-05
JPS5647983U (en) 1981-04-28

Similar Documents

Publication Publication Date Title
EP1087168B1 (en) A device for connecting a pipe to a conduit member
CA2495883C (en) Tubular threaded joint which is impervious to the external environment
EP0024986B1 (en) Process for providing a tube with a connecting ferrule and use of the obtained connecting ferrules for the connection of tubes
EP1561988A1 (en) Quick-acting connector
FR2705432A1 (en) Connection system by sliding sleeves, for cylindrical plastic tubes.
FR2781548A1 (en) PIPE CONNECTION WITH ENLARGED METAL PIPE AND MANUFACTURING METHOD THEREOF
FR2983555A3 (en) CONNECTING ELEMENT OF TWO PIPE ENDS
FR2641996A2 (en) CONICAL TAIL MOUNTING DEVICE, ESPECIALLY 7 / 24E CONE, WITH CONE AND SIDE APPLICATION FOR ATTACHMENTS, TOOL HOLDERS AND TOOLS
FR2465941A1 (en) Gas-tight joint for gas appliance feed pipes - has double concave bellmouth compressed by profiled cap nut
FR2550312A1 (en) FITTING FOR TUBES
FR2793081A1 (en) PRESSURE TRIM TYPE SEALING DEVICE FOR A CABLE
KR200451357Y1 (en) Pipe connector
FR2636712A1 (en) DEVICE FOR CONNECTING AND SEALING WITH A METAL LIP CONNECTION
FR2543283A1 (en) TUBE BEAM HEAT EXCHANGER COMPRISING TUBULAR PLATES OF SYNTHETIC MATERIAL
EP1486713B1 (en) Compression fitting with a groove of variable depth
FR2518699A2 (en) Pipe fitting for connection to sewer - is fixed by clip-on annular tongue clamping edges of opening in main
FR2642136A1 (en) SEAL FOR DEVICE FOR ASSEMBLING PIPES OF METAL OR PLASTIC MATERIAL
FR2473671A1 (en) Demountable non-return valve - has threaded pipe connections each end and with double action seal one side of split housing
FR2480900A3 (en) Threaded spigot fitting internally reinforced rubber hose - uses radially stepped steel sleeve screwing onto stripped hose end containing brass bore liner
EP1133654B1 (en) Connecting device for metal conduit
FR2564911A1 (en) Assembly comprising a composite tubular element and a tapped metal end piece for connection.
FR2567241A3 (en) CONNECTION FOR PIPES WITH SINGLE SEALING BODY
CA1147132A (en) Grimped pipe joint and method for making same
FR2732091A3 (en) Attachment for end of flexible hose, with support and sleeve
FR2643131A1 (en) Screwed connection, particularly for pipelines

Legal Events

Date Code Title Description
ST Notification of lapse