FR2644552A1 - Seal with ball joint action - Google Patents

Seal with ball joint action Download PDF

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Publication number
FR2644552A1
FR2644552A1 FR8903634A FR8903634A FR2644552A1 FR 2644552 A1 FR2644552 A1 FR 2644552A1 FR 8903634 A FR8903634 A FR 8903634A FR 8903634 A FR8903634 A FR 8903634A FR 2644552 A1 FR2644552 A1 FR 2644552A1
Authority
FR
France
Prior art keywords
ring
end pieces
joined
ball joint
seal
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
FR8903634A
Other languages
French (fr)
Other versions
FR2644552B1 (en
Inventor
Jean Doat
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.)
Safran Aerosystems SAS
Original Assignee
ACC La Jonchere 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
Priority claimed from FR8800227A external-priority patent/FR2625546B1/en
Application filed by ACC La Jonchere SA filed Critical ACC La Jonchere SA
Priority to FR8903634A priority Critical patent/FR2644552B1/en
Priority to EP90401116A priority patent/EP0453691A1/en
Publication of FR2644552A1 publication Critical patent/FR2644552A1/en
Application granted granted Critical
Publication of FR2644552B1 publication Critical patent/FR2644552B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • F16L27/111—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
    • F16L27/073—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces one of the cooperating surfaces forming the sealing means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The subject of the present invention is a seal with ball joint action which comprises two connection end-fittings 2a and 2b joined to one another by a mechanical bellows 6. According to the invention, on each of the end-fittings 2a, 2b is freely mounted a ring 9a or 9b the outer face of which is convex, self-lubricating, and in sliding contact against the inner face of a spherical segment 3a or 3b, the end-fitting 2a or 2b having a shoulder or collar 10a or 10b preventing its ring from detaching from it, the two spherical segments 3a and 3b being secured to one another.

Description

La présente invention concerne un joint rotulaire qui permet le raccordement de deux tuyauteries de diamètres voisins et autorise un débattement angulaire sans axe préférentiel, tout en n'entrainant qu'une faible augmentation de la conduite.The present invention relates to a ball joint which allows the connection of two pipes of neighboring diameters and allows an angular movement without preferential axis, while causing only a small increase in the pipe.

Le joint selon l'invention comprend deux embouts de liaison réunis l'un à l'autre par un soufflet métallique et est caractérisé en ce que sur chacun des embouts est monté libre un anneau dont la face extérieure est convexe et en appui glissant contre la face intérieure d'un segment sphérique, l'embout présentant un épaulement ou une collerette empêchant son anneau de se désolidariser de lui, les deux segments sphériques étant solidaires l'un de l'autre.The seal according to the invention comprises two connecting end pieces joined to each other by a metal bellows and is characterized in that on each of the end pieces is freely mounted a ring whose outer face is convex and in sliding contact against the inner face of a spherical segment, the end piece having a shoulder or a collar preventing its ring from detaching from it, the two spherical segments being integral with one another.

Grâce à cette disposition, lors d'un débattement angulaire, le soufflet se déforme de manière régulière et le centre de rotation reste au centre de gravité; l'angle de débattement peut être important et l'ensemble des deux segments constitue un carter mobile; l'encombrement est faible et les embouts peuvent subir un désalignement selon un centre de rotation commun.Thanks to this arrangement, during an angular movement, the bellows deforms regularly and the center of rotation remains at the center of gravity; the angle of travel can be large and the assembly of the two segments constitutes a mobile casing; the space requirement is small and the end pieces can undergo misalignment according to a common center of rotation.

On a décrit ci-après, à titre d'exemple non limitatif, un mode de réalisation du joint rotulaire selon l'invention avec référence à la Figure Unique du dessin annexé qui représente le joint moitié en coupe axiale, moitié en élévation.An embodiment of the ball joint according to the invention has been described below, by way of nonlimiting example, with reference to the single figure of the appended drawing which represents the joint half in axial section, half in elevation.

Au dessin, on voit les deux embouts 2a et 2b , qui sont identiques et réunis l'un à l'autre par un soufflet métallique 6. Sur chacun des embouts est monté libre un anneau 9a ou 9b dont la surface extérieure est convexe et en appui glissant contre la face intérieure d'un segment sphérique 3a ou 3b, rigidifié par une nervure circulaire 4a ou 4b, les deux segments étant réunis l'un à l'autre par leur grandes bases par l'intermédiaire d'une portion sensiblement cylindrique 1. Les anneaux 9a et 9b sont en une matière auto-lubrifiante, par exemple en graphite ou bien en métal en étant recouvert d'une matière glissante telle que le PFTE, le graphite ou une matière céramique.In the drawing, we see the two end pieces 2a and 2b, which are identical and joined to each other by a metal bellows 6. On each of the end pieces is free mounted a ring 9a or 9b whose outer surface is convex and in sliding support against the inner face of a spherical segment 3a or 3b, stiffened by a circular rib 4a or 4b, the two segments being joined to one another by their large bases via a substantially cylindrical portion 1. The rings 9a and 9b are made of a self-lubricating material, for example of graphite or else of metal while being covered with a sliding material such as PFTE, graphite or a ceramic material.

Chacun des embouts présente u#n épaulement 10a ou 10b empêchant l'anneau 9a ou 9b de se désolidariser de l'embout sur lequel il est monté.  Each of the end pieces has a shoulder # 10a or 10b preventing the ring 9a or 9b from detaching from the end piece on which it is mounted.

Pour absorber les variations de dilatation entre les embouts 2a et 2b et les anneaux 3a et 3b, il est interposé entre l'embout et la bague un composite lia ou llb graphité souple et élastique. Lorsque les deux embouts 2a et 2b pivotent l'un par rapport à l'autre, leurs axes A et B continuent de passer par les centres de gravité C du joint. Les deux embouts peuvent également se déplacer angulairement l'un par rapport à l'autre.To absorb variations in expansion between the end pieces 2a and 2b and the rings 3a and 3b, there is interposed between the end piece and the ring a composite lia or llb which is flexible and elastic graphite. When the two end pieces 2a and 2b pivot relative to each other, their axes A and B continue to pass through the centers of gravity C of the joint. The two end pieces can also move angularly relative to each other.

Il va de soi que la présente invention ne doit pas être considérée comme limitée au mode de réalisation décrit et représenté, mais en couvre, au contraire, toutes les variantes. It goes without saying that the present invention should not be considered as limited to the embodiment described and shown, but on the contrary covers all variants thereof.

Claims (3)

RevendicationsClaims 1. Joint rotulaire qui comprend deux embouts de liaison (2a et 2b) réunis l'un à l'autre par un soufflet métallique (6), caractérisé en ce que sur chacun des embouts (2a et 2b) est monté libre un anneau (9a ou 9b) dont la face extérieure est convexe autolubrifiante et en appui glissant contre la face intérieure d'un segment sphérique (3a ou 3b), l'embout (2a ou 2b) présentant un épaulement ou une collerette (lOa ou lOb) empêchant son anneau de se désolidariser de lui, les deux segments sphériques (3a et 3b) étant solidaires l'un de l'autre.1. Rotary joint which comprises two connecting end pieces (2a and 2b) joined to each other by a metal bellows (6), characterized in that on each of the end pieces (2a and 2b) is freely mounted a ring ( 9a or 9b) whose outer face is self-lubricating convex and in sliding contact against the inner face of a spherical segment (3a or 3b), the end piece (2a or 2b) having a shoulder or a flange (lOa or lOb) preventing its ring to separate from it, the two spherical segments (3a and 3b) being integral with one another. 2. Joint selon la revendication 1, caractérisé en ce que les deux segments (3a et 3b) sont réunis l'un à l'autre par une partie (1) sensiblement cylindrique, l'ensemble formant un carter monobloc. 2. Joint according to claim 1, characterized in that the two segments (3a and 3b) are joined to each other by a portion (1) substantially cylindrical, the assembly forming a one-piece casing. 3. Joint selon la revendication 1 ou 2, caractérisé en ce que des éléments composites (lia et llb) graphités souples et élastiques sont interposés entre les embouts (2a et 2b) et les anneaux (3a et 3b). 3. Joint according to claim 1 or 2, characterized in that composite elements (11a and 11b) flexible and elastic graphites are interposed between the end pieces (2a and 2b) and the rings (3a and 3b).
FR8903634A 1988-01-05 1989-03-14 JOINT JOINT Expired - Lifetime FR2644552B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8903634A FR2644552B1 (en) 1988-01-05 1989-03-14 JOINT JOINT
EP90401116A EP0453691A1 (en) 1989-03-14 1990-04-25 Ball joint

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8800227A FR2625546B1 (en) 1988-01-05 1988-01-05 JOINT JOINT
FR8903634A FR2644552B1 (en) 1988-01-05 1989-03-14 JOINT JOINT

Publications (2)

Publication Number Publication Date
FR2644552A1 true FR2644552A1 (en) 1990-09-21
FR2644552B1 FR2644552B1 (en) 1991-07-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8903634A Expired - Lifetime FR2644552B1 (en) 1988-01-05 1989-03-14 JOINT JOINT

Country Status (1)

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FR (1) FR2644552B1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453691A1 (en) * 1989-03-14 1991-10-30 A C C La Jonchere Ball joint
DE4141064C1 (en) * 1991-06-27 1992-10-15 Hans Rattay Gmbh & Co Kg, 4224 Huenxe, De Joint compensator for gas or liq. pipelines - has annular faces on either housing side formed by rings, closing housing sides and connectable to peripheral housing flange
US5407237A (en) * 1993-02-26 1995-04-18 The United States Of America As Represented By The Secretary Of The Air Force Flexible coupling
EP0852310A2 (en) * 1997-01-06 1998-07-08 Senior Engineering Investments AG Flexible connector systems
US5791697A (en) * 1995-01-06 1998-08-11 Iwk Regler And Kompensatoren Gmbh Device for the movable connection of pipe ends
FR2799260A1 (en) * 1999-10-04 2001-04-06 Acc La Jonchere Articulated pipe connection comprises male and female connector with sleeve fitted over male connector and spring which biases this against female connector and allows pipes to rotate
EP1055807A3 (en) * 1999-05-24 2003-01-29 SJM Company Limited Exhaust decoupler system
US6568715B2 (en) 2001-05-17 2003-05-27 Senior Investments Ag Vibration decoupling exhaust connector
US7264280B2 (en) * 2005-06-15 2007-09-04 Sjm Co., Ltd. Flexible tube for an exhaust pipe of an automobile
US11306853B2 (en) * 2014-08-21 2022-04-19 American Boa, Inc. Floating load ring for flexible joint

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1434631A (en) * 1921-01-22 1922-11-07 James J Reynolds Flexible pipe joint
US3219365A (en) * 1964-11-02 1965-11-23 National Aeronautics And Space Administration Spherical shield
EP0069034A1 (en) * 1981-07-01 1983-01-05 Cefilac High or low temperature sealing joint at static or dynamic conditions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1434631A (en) * 1921-01-22 1922-11-07 James J Reynolds Flexible pipe joint
US3219365A (en) * 1964-11-02 1965-11-23 National Aeronautics And Space Administration Spherical shield
EP0069034A1 (en) * 1981-07-01 1983-01-05 Cefilac High or low temperature sealing joint at static or dynamic conditions

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453691A1 (en) * 1989-03-14 1991-10-30 A C C La Jonchere Ball joint
DE4141064C1 (en) * 1991-06-27 1992-10-15 Hans Rattay Gmbh & Co Kg, 4224 Huenxe, De Joint compensator for gas or liq. pipelines - has annular faces on either housing side formed by rings, closing housing sides and connectable to peripheral housing flange
US5407237A (en) * 1993-02-26 1995-04-18 The United States Of America As Represented By The Secretary Of The Air Force Flexible coupling
US5791697A (en) * 1995-01-06 1998-08-11 Iwk Regler And Kompensatoren Gmbh Device for the movable connection of pipe ends
US5944363A (en) * 1997-01-06 1999-08-31 Senior Engineering Investments Ag Flexible connector systems
EP0852310A3 (en) * 1997-01-06 1998-08-26 Senior Engineering Investments AG Flexible connector systems
EP0852310A2 (en) * 1997-01-06 1998-07-08 Senior Engineering Investments AG Flexible connector systems
EP1055807A3 (en) * 1999-05-24 2003-01-29 SJM Company Limited Exhaust decoupler system
FR2799260A1 (en) * 1999-10-04 2001-04-06 Acc La Jonchere Articulated pipe connection comprises male and female connector with sleeve fitted over male connector and spring which biases this against female connector and allows pipes to rotate
WO2001025669A1 (en) * 1999-10-04 2001-04-12 Acc - La Jonchere Articulated joint designed, in particular, to connect together two ducts circulating liquid or gas fluid
US6568715B2 (en) 2001-05-17 2003-05-27 Senior Investments Ag Vibration decoupling exhaust connector
US7264280B2 (en) * 2005-06-15 2007-09-04 Sjm Co., Ltd. Flexible tube for an exhaust pipe of an automobile
US11306853B2 (en) * 2014-08-21 2022-04-19 American Boa, Inc. Floating load ring for flexible joint

Also Published As

Publication number Publication date
FR2644552B1 (en) 1991-07-19

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