FR2523682A1 - Pneumatic, inflatable joint for surfaces - has two inflatable, interconnected air chambers in housing between two surfaces - Google Patents
Pneumatic, inflatable joint for surfaces - has two inflatable, interconnected air chambers in housing between two surfaces Download PDFInfo
- Publication number
- FR2523682A1 FR2523682A1 FR8204814A FR8204814A FR2523682A1 FR 2523682 A1 FR2523682 A1 FR 2523682A1 FR 8204814 A FR8204814 A FR 8204814A FR 8204814 A FR8204814 A FR 8204814A FR 2523682 A1 FR2523682 A1 FR 2523682A1
- Authority
- FR
- France
- Prior art keywords
- seal
- inflatable
- chambers
- joint
- pneumatic
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Joint pneumatique gonflable
La présente invention concerne un joint pneumatique gonflable et rétractable comprenant une gaine profilée en matériau élastique. De tels joints sont destinés à assurer l'étanchéité entre deux surfaces en vis-à-vis, mais non nécessairement parallèles, pouvant être mobiles l'une par rapport à l'autre. Il est difficile d'assurer cette étanchéité lorsque les deux surfaces peuvent présenter un écartement variant de façon importante.Inflatable pneumatic seal
The present invention relates to an inflatable and retractable pneumatic seal comprising a profiled sheath made of elastic material. Such seals are intended to seal between two facing surfaces, but not necessarily parallel, which can be movable relative to each other. It is difficult to ensure this seal when the two surfaces can have a spacing which varies significantly.
La Demanderesse à proposé à cet effet dans son brevet français FR-B-2243619 un joint constitué par une gaine aplatie en position rétractée de manière à former une embase et au moins une paroi latérale repliée sur l'embase, ce qui permet d'obtenir un rapport élevé entre sa hauteur à l'état expansé (gonflé) et sa hauteur à l'état de repos (dégonflé). The Applicant has proposed for this purpose in its French patent FR-B-2243619 a seal constituted by a flattened sheath in the retracted position so as to form a base and at least one side wall folded over the base, which makes it possible to obtain a high ratio between its height in the expanded state (inflated) and its height in the rest state (deflated).
Un tel joint nécessite cependant que le matériau de sa gaine soit d'une élasticité parfaite, qualité qu'il est très difficile d'obtenir des élastomères courants. Si l'on utilise ces derniers, le repliement de la ou des parois latérales sur l'embase après dégonflage n'est souvent pas complet, et le joint ne fonctionne pas dès lors de façon fiable. Such a seal, however, requires that the material of its sheath be of perfect elasticity, a quality which is very difficult to obtain from common elastomers. If these are used, the folding of the side wall (s) on the base after deflation is often not complete, and the seal therefore does not work reliably.
La présente invention a pour but de remédier à cette difficulté, et de procurer un joint pneumatique qui reprenne exactement au dégonflage la position verticale qu'il avait avant gonflage, tout en présentant également un rapport très élevé entre ses épaisseurs à l'état gonflé et à l'état dégonflé. Elle a encore pour but de procurer un joint pneumatique qui puisse assurer une excellente étanchéité entre des surfaces pouvant être séparées par un écartement très important. The object of the present invention is to remedy this difficulty, and to provide a pneumatic seal which exactly takes up the deflation of the vertical position it had before inflation, while also having a very high ratio between its thicknesses in the inflated state and in the deflated state. It also aims to provide a pneumatic seal which can provide an excellent seal between surfaces which can be separated by a very large spacing.
Le joint selon l'invention est caractérisé en ce qu'il comporte au moins deux chambres gonflables superposées dans le sens perpendiculaire aux surfaces entre lesquelles l'étanchéité doit être obtenue, raccordées par une bande étroite du même matériau, percée d'au moins un trou de mise en communication des deux chambres. The seal according to the invention is characterized in that it comprises at least two inflatable chambers superimposed in the direction perpendicular to the surfaces between which the seal is to be obtained, connected by a narrow strip of the same material, pierced with at least one connecting hole of the two rooms.
Il répond en outre de préférence à au moins l'une des caractéristiques suivantes - L'une au moins des chambres est renforcée par une armature textile limitant son gonflement. It also preferably meets at least one of the following characteristics - At least one of the chambers is reinforced by a textile reinforcement limiting its swelling.
- L'une des chambres comporte un talon de fixation dans l'une des surfaces entre lesquelles ltétanchéité doit être obtenue.- One of the chambers has a fixing heel in one of the surfaces between which the seal must be obtained.
- Pour un joint destiné à assurer l'étanchéité entre deux surfaces faisant entre elles un angle, le plan de symétrie de l'une des chambres est différent de celui de l'autre.- For a joint intended to seal between two surfaces forming an angle between them, the plane of symmetry of one of the chambers is different from that of the other.
Il est décrit ci-après, à titre d'exemple et en référence au dessin annexé, des joints pneumatiques gonflables selon l'invention. It is described below, by way of example and with reference to the accompanying drawing, inflatable pneumatic seals according to the invention.
Les figures 1A, 7B, 1C représentent en perspective un joint à deux chambres identiques superposées, de sa position de repos à sa position totalement gonflée. Figures 1A, 7B, 1C show in perspective a joint with two identical chambers superimposed, from its rest position to its fully inflated position.
Les figures 2A et 2B représentent en coupe transversale un joint à 3 chambres identiques superposées ayant une armature textile externe, à l'état de repos et schématiquement à l'état gonflé. FIGS. 2A and 2B show in cross section a joint with 3 identical superimposed chambers having an external textile reinforcement, in the rest state and schematically in the inflated state.
Les figures 3A et 3B représentent en coupe un joint à deux chambres superposées, dont seule la chambre supérieure est à armature textile externe, à l'état de repos et schématiquement à l'état gonflé. FIGS. 3A and 3B show in section a joint with two superimposed chambers, of which only the upper chamber has an external textile reinforcement, in the rest state and schematically in the inflated state.
Les figures 4A et 4B représentent en coupe un joint à deux chambres superposées, toutes deux à armature textile interne, et dont la chambre supérieure est munie d'une bande de renfort cannelée pour l'amélioration de l'étanchéité, à l'état de repos et schématiquement à l'état gonflé. FIGS. 4A and 4B show in section a joint with two superimposed chambers, both with internal textile reinforcement, and the upper chamber of which is provided with a grooved reinforcement strip for improving the seal, in the state of rest and schematically in the inflated state.
Les figures 5A et 5B représentent en coupe un joint à deux chambres superposées, dont la chambre supérieure est disposée dissymé triquement par rapport à la chambre inférieure, et dont la chambre inférieure est munie d'un talon de fixation, à l'état de repos et schématiquement à l'état gonflé. FIGS. 5A and 5B show in section a joint with two superimposed chambers, the upper chamber of which is arranged asymmetrically with respect to the lower chamber, and the lower chamber of which is provided with a fixing heel, in the rest state and schematically in the inflated state.
Dans la figure 1, le joint est disposé dans le logement 1 de l'une des surfaces 1A, 1B entre lesquelles l'étanchéité doit être assurée. Il comporte un raccord 2 relié à une canalisation d'air comprimé. Les chambres 3 et 4 superposées sont reliées par une bande étroite comaune 5, percée d'un ou plusieurs trous 6. Lorsque l'on commence à gonfler le joint, les chambres 3 et I; s'écartent l'une de l'autre (figure 1B). En fin de gonflage, la chambre supérieure 4 vient s'appliquer contre la surface opposée 1B. In Figure 1, the seal is disposed in the housing 1 of one of the surfaces 1A, 1B between which the seal must be ensured. It has a connector 2 connected to a compressed air pipe. The superimposed chambers 3 and 4 are connected by a narrow strip comaune 5, pierced with one or more holes 6. When one begins to inflate the joint, the chambers 3 and I; deviate from each other (Figure 1B). At the end of inflation, the upper chamber 4 is applied against the opposite surface 1B.
Dans les figures 2A et 2B, le joint comprend trois chambres superposées 3, 4, 7. Les chambres 3 et 4 sont reliées par une bande commune 5 munie de trous de communication 6, et les chambres 4 et 7 par une bande commune 8 munie de trous de communication 9. Les trois chambres ont une armature textile extérieure 10, enduite de caoutchouc, qui limite à une valeur maximale la déformation au gonflage par extension de leurs parois, et par suite le développement total en hauteur du joint (figure 2B).et qui leur permet de supporter des pressions de gonflage plus élevées. In FIGS. 2A and 2B, the seal comprises three superimposed chambers 3, 4, 7. The chambers 3 and 4 are connected by a common strip 5 provided with communication holes 6, and the chambers 4 and 7 by a common strip 8 provided of communication holes 9. The three chambers have an external textile reinforcement 10, coated with rubber, which limits to a maximum value the deformation on inflation by extension of their walls, and consequently the total development in height of the joint (FIG. 2B) .and allows them to withstand higher inflation pressures.
Les figures 3A et 3B représentent un joint mixte, comportant une chambre inférieure 3 plus large, et une chambre supérieure 4 plus étroite, et munie d'une armature textile externe de renforcement 10. FIGS. 3A and 3B represent a mixed seal, comprising a wider lower chamber 3, and a narrower upper chamber 4, and provided with an external textile reinforcement 10.
De ce fait, le gonflage de la chambre supérieure est limité, tandis que celui de la chambre inférieure est variable dans une proportion beaucoup plus large, comme on le voit par les développements 3A et 3B de la figure 3B.As a result, the inflation of the upper chamber is limited, while that of the lower chamber is variable in a much larger proportion, as can be seen by the developments 3A and 3B in FIG. 3B.
Le joint des figures 4A et 4B est à deux chambres, dont la chambre inférieure 3 est plus large que la chambre supérieure 4, toutes deux comportant une armature textile interne 12, 13 qui limite leur déformation par extension au gonflage. Le raccord d'alimentation en air 11 est un raccord métallique analogue aux raccords de chambre à air de pneumatiques. La face supérieure 14 de la chambre 4 est munie d'une bande de renfort présentant des protubérances longitudinales alternant avec des creux qui amèliorent l'étanchéité au contact de la surface sur laquelle elle vient s'appliquer. La figure 4B représente le joint gonflé, dont le développement est limité par ses armatures. The joint of FIGS. 4A and 4B has two chambers, the lower chamber 3 of which is wider than the upper chamber 4, both having an internal textile reinforcement 12, 13 which limits their deformation by extension to inflation. The air supply fitting 11 is a metallic fitting analogous to the air chamber fittings of tires. The upper face 14 of the chamber 4 is provided with a reinforcing strip having longitudinal protrusions alternating with recesses which improve the seal in contact with the surface on which it is applied. FIG. 4B represents the inflated joint, the development of which is limited by its reinforcements.
Le joint représenté dans les figures SA et 5B est à développement dissymétrique. A cet effet, sa chambre supérieure 11, plus étroite que la chambre inférieure 3, possède un plan de symétrie décalé, de sorte qu'après gonflage elle vient s'appliquer sur une surface 17 faisant un angle avec la surface 16 sur laquelle repose la chambre 3. Cette dernière est par ailleurs munie d'une armature textile interne 12 et fixée dans la surface d'appui 16 par un talon à flancs obliques 15. The seal shown in Figures SA and 5B is asymmetric development. For this purpose, its upper chamber 11, narrower than the lower chamber 3, has an offset plane of symmetry, so that after inflation it comes to apply on a surface 17 making an angle with the surface 16 on which the chamber 3. The latter is also provided with an internal textile reinforcement 12 and fixed in the bearing surface 16 by a heel with oblique sides 15.
On comprendra que diverses modifications peuvent être apportées aux joints qui viennent d'être décrits en référence aux figures du dessin sans sortir du cadre de l'invention, notamment en ce qui concerne la présence ou l'absence d'armatures et leur situation externe ou interne. It will be understood that various modifications can be made to the joints which have just been described with reference to the figures of the drawing without departing from the scope of the invention, in particular as regards the presence or absence of reinforcements and their external situation or internal.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204814A FR2523682A1 (en) | 1982-03-22 | 1982-03-22 | Pneumatic, inflatable joint for surfaces - has two inflatable, interconnected air chambers in housing between two surfaces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204814A FR2523682A1 (en) | 1982-03-22 | 1982-03-22 | Pneumatic, inflatable joint for surfaces - has two inflatable, interconnected air chambers in housing between two surfaces |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2523682A1 true FR2523682A1 (en) | 1983-09-23 |
Family
ID=9272238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8204814A Pending FR2523682A1 (en) | 1982-03-22 | 1982-03-22 | Pneumatic, inflatable joint for surfaces - has two inflatable, interconnected air chambers in housing between two surfaces |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2523682A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4553764A (en) * | 1983-12-30 | 1985-11-19 | Ab Asea Atom | Flexible, annular metallic sealing device |
WO1989009905A1 (en) * | 1988-04-13 | 1989-10-19 | Rintuv Hb | Seal between a liner pipe and a surrounding exterior pipe |
US4889196A (en) * | 1988-11-07 | 1989-12-26 | Johnston Vaughn R | Diverter apparatus |
WO2003041839A1 (en) * | 2001-09-19 | 2003-05-22 | Kvaerner Pulping Ab | Sealing device and sleeve and holding element for such |
EP2131080A1 (en) * | 2008-06-05 | 2009-12-09 | Ernst Leitner | Meander sealing system |
CN1900562B (en) * | 2005-07-19 | 2010-04-28 | 上海市机械施工有限公司 | Composite inflating type hinge seal device for engineering mechinery |
CN103629362A (en) * | 2013-12-17 | 2014-03-12 | 北京航天益森风洞工程技术有限公司 | Two-layer inflation sealing device of wind tunnel telescopic section |
CN104032774A (en) * | 2014-04-29 | 2014-09-10 | 株洲时代新材料科技股份有限公司 | Real-time rubber waterstop monitoring method for immersed tunnel and rubber waterstop |
CN104373597A (en) * | 2014-10-15 | 2015-02-25 | 浙江省海洋开发研究院 | Inflatable seal strip |
CN105402402A (en) * | 2015-10-30 | 2016-03-16 | 宁波凌珂新材料科技有限公司 | Pneumatic type sealing gasket |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3262707A (en) * | 1963-04-26 | 1966-07-26 | Williams Res Corp | High pressure seal used in conjunction with regenerator |
US3359687A (en) * | 1964-08-17 | 1967-12-26 | Haveg Industries Inc | Expansible seal |
FR2264958A1 (en) * | 1974-03-21 | 1975-10-17 | Westinghouse Brake & Signal |
-
1982
- 1982-03-22 FR FR8204814A patent/FR2523682A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3262707A (en) * | 1963-04-26 | 1966-07-26 | Williams Res Corp | High pressure seal used in conjunction with regenerator |
US3359687A (en) * | 1964-08-17 | 1967-12-26 | Haveg Industries Inc | Expansible seal |
FR2264958A1 (en) * | 1974-03-21 | 1975-10-17 | Westinghouse Brake & Signal |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4553764A (en) * | 1983-12-30 | 1985-11-19 | Ab Asea Atom | Flexible, annular metallic sealing device |
WO1989009905A1 (en) * | 1988-04-13 | 1989-10-19 | Rintuv Hb | Seal between a liner pipe and a surrounding exterior pipe |
US4889196A (en) * | 1988-11-07 | 1989-12-26 | Johnston Vaughn R | Diverter apparatus |
WO2003041839A1 (en) * | 2001-09-19 | 2003-05-22 | Kvaerner Pulping Ab | Sealing device and sleeve and holding element for such |
US7147230B2 (en) * | 2001-09-19 | 2006-12-12 | Kvaerner Pulping Ab | Sealing device and sleeve and holding element for such |
CN1900562B (en) * | 2005-07-19 | 2010-04-28 | 上海市机械施工有限公司 | Composite inflating type hinge seal device for engineering mechinery |
EP2131080A1 (en) * | 2008-06-05 | 2009-12-09 | Ernst Leitner | Meander sealing system |
CN103629362A (en) * | 2013-12-17 | 2014-03-12 | 北京航天益森风洞工程技术有限公司 | Two-layer inflation sealing device of wind tunnel telescopic section |
CN103629362B (en) * | 2013-12-17 | 2016-03-30 | 北京航天益森风洞工程技术有限公司 | A kind of wind-tunnel telescopic section Dual-layer air-filled sealed device |
CN104032774A (en) * | 2014-04-29 | 2014-09-10 | 株洲时代新材料科技股份有限公司 | Real-time rubber waterstop monitoring method for immersed tunnel and rubber waterstop |
CN104032774B (en) * | 2014-04-29 | 2016-02-03 | 株洲时代新材料科技股份有限公司 | Towards the method for the real-time monitoring of immersed tube tunnel rubber fastening band |
CN104373597A (en) * | 2014-10-15 | 2015-02-25 | 浙江省海洋开发研究院 | Inflatable seal strip |
CN104373597B (en) * | 2014-10-15 | 2016-07-06 | 浙江省海洋开发研究院 | A kind of inflatable seal bar |
CN105402402A (en) * | 2015-10-30 | 2016-03-16 | 宁波凌珂新材料科技有限公司 | Pneumatic type sealing gasket |
CN105402402B (en) * | 2015-10-30 | 2017-09-12 | 宁波凌珂新材料科技有限公司 | Vapour-pressure type gasket seal |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2523682A1 (en) | Pneumatic, inflatable joint for surfaces - has two inflatable, interconnected air chambers in housing between two surfaces | |
EP0335778B1 (en) | Snap-in connecting device for two interlocking parts | |
US5605357A (en) | Pipe collar | |
EP0125275A1 (en) | A pipe joint seal. | |
FR2704042A1 (en) | FS seal for large-diameter pipe | |
CH616997A5 (en) | ||
FR2784435A1 (en) | RING OR METAL SEAL FOR LOW LOAD CONDITIONS | |
HU195295B (en) | Sleeve for sealing the joint of tube ends | |
EP0176407A1 (en) | Header box for a heat exchanger and heat exchanger comprising this header box | |
JP2001517287A (en) | Sanitary flange type joint with thermal expansion area for gasket | |
EP0418116A1 (en) | Metal reinforcement for strip or sealing joint, particularly for the automotive industry | |
CH618489A5 (en) | Wall with extensible joints between panels and method for constructing the said wall | |
FR2627203A1 (en) | CAULKING MATERIAL IMPROVES IN PARTICULAR FOR TUNNELS AND WELLS | |
US5507504A (en) | Sealing device with c-shaped lips and central projection | |
FR2585444A3 (en) | Connection for a pipe | |
KR200368080Y1 (en) | A packing for double wall-pipe | |
KR102159161B1 (en) | Water and sewage pipe connection socket with prevention of pipe departure, improved water tightness and stability | |
FR2512917A1 (en) | Elastic seal ring dressing for pipework joints - has two annular rims forming rectangular trapezoidal meridian section with square spaced cells | |
BE685844A (en) | ||
EP0848136A1 (en) | Sealing system for use next to building openings or other construction for preventing the infiltration of water, mud or other products in the protected building | |
FR2696231A1 (en) | Heat exchanger comprising several tubes, with ends fixed by mechanical jointing in a bottom. | |
EP0414617B1 (en) | Profiled elastomer seal for tunnelvault | |
EP2697467A1 (en) | Connector for hollow portions of profile member(s), particularly for double-pane window frames | |
BE1008254A6 (en) | WATERPROOFING SYSTEM BETWEEN FRAMES OF A FRAME FOR A WALL-CURTAIN TYPE FACADE. | |
KR100525266B1 (en) | The device of connecting a branch pipe to main pipe |