EP0818602A1 - Device for winding and unwinding a fabric - Google Patents

Device for winding and unwinding a fabric Download PDF

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Publication number
EP0818602A1
EP0818602A1 EP97420093A EP97420093A EP0818602A1 EP 0818602 A1 EP0818602 A1 EP 0818602A1 EP 97420093 A EP97420093 A EP 97420093A EP 97420093 A EP97420093 A EP 97420093A EP 0818602 A1 EP0818602 A1 EP 0818602A1
Authority
EP
European Patent Office
Prior art keywords
core
fabric
housing
sheath
winding
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
EP97420093A
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German (de)
French (fr)
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EP0818602B1 (en
Inventor
Carlos Saiz
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.)
Tissage et Enduction Serge Ferrari SA
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Tissage et Enduction Serge Ferrari SA
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Publication of EP0818602A1 publication Critical patent/EP0818602A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B9/581—Means to prevent or induce disengagement of shutter from side rails
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/06—Safety devices; Coverings for baths
    • E04H4/10—Coverings of flexible material
    • E04H4/101—Coverings of flexible material wound-up on a fixed axis

Definitions

  • the invention relates to a device for winding or unwinding a canvas such as a flexible blind, a awning, a swimming pool cover, a tarpaulin truck or any other similar item of textile structure or equivalent.
  • the fabrics used as tarpaulins or the like are intended for be wound on a pivoting mechanism generally mounted in a chassis. Gold, it is frequently observed, in particular with regard to very large fabrics, the appearance of primers of folds which increase as the winding progresses.
  • a problem which the invention therefore proposes to solve is that of the winding of a canvas around an axis without the appearance of folds on the surface of this one.
  • a second problem is that of limiting or eliminating the excess thicknesses which are born when the canvas is rolled up.
  • the invention therefore relates to a device for winding and unwinding a fabric. of the blind, awning, pool cover type, etc., around a pivoting winding axis relative to a frame, said fabric having a constant width between these two side edges.
  • This device is characterized in that the fabric has on each lateral edge a sheath, and in that it comprises two cores threaded each in one of the sheaths, and means for maintaining the constant spacing between these two cores.
  • the invention consists in equipping the canvas with lateral sleeves and prohibit the bringing together of these sleeves and therefore the edges of the canvas.
  • the slight transverse tension to which the fabric is subjected thus avoids the floating of this one and the birth of folds.
  • the side sleeves do not cause almost no extra thickness, which limits the volume of the chassis and as a consequence to increase the length of canvas usable with the same winding system.
  • the means for keeping the spacing constant between the two cores are arranged near the winding axis. We reduce thus at a bare minimum the distance between these means and the axis, on which could possibly appear folds.
  • the sheath can consist of a folded strip of fabric, the edges folded over each other are fixed to each edge of the canvas, by sewing, by ultrasonic welding or heat welding.
  • the inner face of the sheath has a low coefficient of friction, especially with regard to the nucleus it receives. This does not increase the torque required to wind the canvas and avoid blockages.
  • this sheath can for example be made of a fabric chosen from the group including polyester, polyamide, glass textiles coated with polytetrafluoroethylene.
  • the housing and the core have complementary shapes, which allow sliding guidance of the core in the body and more precisely the housing, as well as the precise positioning of the scabbard.
  • the housing and the core are cylindrical.
  • the core partially extends beyond the housing.
  • the means intended to prohibit the sliding of the core in the housing are removable from the body. This allows solve the problem of introducing the core into the housing, then maintaining it in position during actual operation. So in one form of execution practical, these means consist of two axes capable of sliding in the body, arranged on either side of the core and the opposite faces of which enclose this core at a necking provided for this purpose therein.
  • the means intended to prevent sliding of the core consist of at least one magnetic element placed on the body and / or on the nucleus.
  • the body characteristic of the invention comprises a fixing plate.
  • Figure 1 is a general summary perspective view of a chassis and a canvas mounted on a vertical support.
  • Figure 2 is a summary perspective view of the body mounted on the chassis and inside which is trapped the core threaded into the sheath of the canvas.
  • Figure 3 is a top view of the same room.
  • FIG. 4 is a view along the arrows IV-IV 'of FIG. 3.
  • Figure 5 is a view in which the canvas and its sheaths are associated with core and body described above.
  • Figure 6 is a longitudinal sectional view of the body in which is placed places the sheath and the core.
  • Figures 7 and 8 are sectional views of the body of alternative embodiments.
  • the invention relates to winding-unwinding devices fabrics intended to cover different types of surface. So it can be canvas serving as a banner deployed for example on a terrace to provide shade, or many more blinds, that is to say canvases unrolled on a glazed surface for par example protect from sunlight. It can also be protective fabrics serving as a tarpaulin, for example on a truck, or as canvases protection and pool cover. Generally speaking, this is canvas integrated into textile structures.
  • the fabric (1) is mounted about an axis (3) pivoting in a frame (2).
  • the fabric (1) has sheaths on its edges (4, 5) and concomitantly the chassis (2) has characteristic means (13) allowing the spacing between the selvedges (4, 5) to be kept constant.
  • each of these selvedges (4, 5) receives a piece of fabric (10) folded back on itself to form a continuous sheath parallel to the selvedge (5).
  • the edges (8, 9) of this fabric (10) are connected with the edge (4, 5) of the fabric (1).
  • the strip (10) intended to form the sheath is made of a flexible material for can be rolled up flat, thin so as not to cause excess thickness and can be easily deformable in the body of the characteristic means of the invention. he also important that it is very resistant to abrasion and therefore has a low rate friction with materials used for the organs with which it must cooperate.
  • this strip can for example be made from a glass textile coated with polytetrafluoroethylene, or polyester or polyamide.
  • the invention consists in introducing inside this sheath (6, 7) a core (12) able to cooperate with a body (13) integral with the chassis (2).
  • a core (12) able to cooperate with a body (13) integral with the chassis (2).
  • the invention is not limited of course not to the embodiment illustrated in Figures 2 to 6 but to contrary embraces all the variants in which the principle of the invention is respected, that is to say in which a core is threaded into the sheath and is found held by a body secured to the chassis, not by direct mechanical contact but with the interposition of the strip (10) forming the sheath (6).
  • the body (13) is breaks down into two main parts, namely a part (14) which ensures the maintenance of the core, in the transverse direction of the fabric, and a part (15) whose function is to block the sliding of the same core in the longitudinal direction of the unwinding of the Web.
  • the part (14) proper presents on its face opposite the canvas, a longitudinal housing (16) extending over the entire length of the part (14).
  • This housing (16) has an opening (17) whose two edges (18, 19) are parallel between them and to the longitudinal axis of the housing (16).
  • this housing is able to receive a core (12).
  • this core (12) Different forms can be adopted for this core (12), it being understood that it is preferable for it to be of cross section constant, and it is necessary that its thinner section be less at the distance between the edges (18, 19) of the opening (17), and this so that this core (12) is retained and cannot move in the transverse direction of the fabric.
  • this core (12), and the housing complementary (16) are both cylindrical, but the invention also covers different shape variants, as illustrated in particular in FIG. 8 in which the nucleus is ovoid, or even variants in which the housing has dimensions larger than the core, and a different shape, while presenting an opening preventing the exit of the nucleus.
  • the ends (32, 33) of the cylinder (12) are in the form of hemisphere to allow the cylinder (12) to slide in the sleeve (6) without damage it.
  • the hemispherical shape can be replaced by any other soft form connecting to the body of the core (12) without sharp edge.
  • the core (12) can be totally or partially nested in the body in the transverse direction of the canvas.
  • the complementary forms of the housing (16) and the core (12) allow this last to move by sliding in the longitudinal direction of the canvas, and this during the placement phase of the sheath inside the housing (16).
  • the part (15) of the body (13) is intended to prevent the displacement of this core (12) in the longitudinal direction.
  • this part (15) receives two axes (25, 26), capable of sliding in the transverse direction of the fabric, that is to say perpendicular to the direction of sliding of the core (12) in the housing (16).
  • axes (25, 26) are arranged so as to penetrate the volume corresponding to the passage of the core (12). Additionally, the core (12) has two lateral recesses (27, 28) inside which can slide freely the axes (25, 26). When these axes (25, 26) are in position in the constricted (27, 28), the sliding of the core (12) along the longitudinal axis is impossible. However, as illustrated in Figure 6, the space between the axes (25, 26) and the constrictions (27, 28) allow the passage of the fabric forming the sheath and therefore the scrolling thereof in the body (13).
  • the sliding of the core (12) is not blocked not mechanically but through magnetic means.
  • the body (13) may include a magnetic part (30) forming a magnet and able to attract another magnetized, or simply ferro-magnetic, zone of the core (12).
  • the means (10) characteristic of the invention are arranged as close as possible to the winding axis (3), that is to say for example that they are fixed on the chassis.
  • the body (13) has a plate (40) allowing its attachment to different types of chassis.
  • the cores (12) When the fabric is placed in the frame (2), the cores (12) are introduced into the sleeves (6), then placed inside the housing (16) of the body (13), the axes (25, 26) being retracted. When the core (12) is in place, the axes (25, 26) are extracted to come opposite the necks (27, 28) of the core (12) (see Figure 6).
  • the cores (12) and the sleeves (6) are maintained at a constant spacing, which ensures transverse tensioning, and therefore limits as much as possible the risk of wrinkles appearing on the winding.
  • the winding-unwinding device of a canvas according to the invention has the notable advantage of preventing the formation of folds on a canvas at the time of its winding. It therefore follows that the invention authorizes the installation of very large fabrics, which was not possible with previously existing solutions.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Tents Or Canopies (AREA)

Abstract

A rolled sheet of material (1), designed so that its edges run in guide rails (13) when it is deployed, has flexible tubes attached to its two lengthwise edges (9) to receive rigid inserts (12). The inserts hold the edges of the sheet in place as they slide along channels in the guide rails (13). The edge tubes are made from a material which gives a low friction coefficient on the inner surface, such as polyester, polyamide, or fibreglass coated with PTFE, and they are attached to the material sheet by sewing or thermal or ultrasound welding. The inserts are e.g. cylindrical in shape with hemispherical ends, and the rails have stops in the form of pegs or magnets to limit their travel.

Description

Domaine techniqueTechnical area

L'invention concerne un dispositif permettant l'enroulement ou le déroulement d'une toile tel qu'un store souple, une banne, une couverture de piscine, une bache de camion ou tout autre article similaire de structure textile ou équivalent.The invention relates to a device for winding or unwinding a canvas such as a flexible blind, a awning, a swimming pool cover, a tarpaulin truck or any other similar item of textile structure or equivalent.

Elle vise plus précisément un perfectionnement évitant l'apparition de plis lors de l'enroulement d'une telle toile. Elle trouve plus particulièrement un avantage pour les toiles de grande dimension.More specifically, it aims to improve the appearance of wrinkles during of the winding of such a canvas. In particular, it finds an advantage for large canvases.

Techniques antérieuresPrevious techniques

De façon générale, les toiles servant de bâches ou analogues, sont destinées à être enroulées sur un mécanisme pivotant généralement monté dans un châssis. Or, on constate fréquemment, notamment en ce qui concerne les toiles de grande largeur, l'apparition d'amorces de plis qui s'amplifient au fur et à mesure de l'enroulement.In general, the fabrics used as tarpaulins or the like are intended for be wound on a pivoting mechanism generally mounted in a chassis. Gold, it is frequently observed, in particular with regard to very large fabrics, the appearance of primers of folds which increase as the winding progresses.

On peut notamment citer comme cause de l'apparition des plis, le fléchissement de l'axe d'enroulement que l'on observe plus facilement sur les axes de diamètre ayant une rigidité inadaptée. Par ailleurs, l'utilisation de largeur de laize de plus en plus importante ainsi que de systèmes de forte tension des panneaux engendrent des contraintes de plus en plus fortes à supporter par lesdits axes.One can cite as a cause of the appearance of folds, sagging of the winding axis which is more easily observed on the axes of diameter having unsuitable rigidity. By the way, the use of width width more and more important as well as high tension systems of the panels generate increasingly strong constraints to be supported by said axes.

Les plis ainsi apparus marquent la toile et sont très souvent définitifs. Bien évidemment ils sont esthétiquement inacceptables et peuvent même provoquer des dysfonctionnements du système d'enroulement. En effet, les surépaisseurs consécutives à ces plis peuvent être incompatibles avec les dimensions du caisson dans lequel s'enroule la toile.The folds thus appeared mark the canvas and are very often final. Good obviously they are aesthetically unacceptable and can even cause winding system malfunctions. Indeed, the extra thicknesses consecutive to these folds may be incompatible with the dimensions of the box in which the canvas is rolled up.

Pour résoudre le problème du fléchissement de l'axe, on a proposé d'équiper le caisson d'un berceau disposé sous l'enroulement et destiné à le supporter. Malheureusement, cette solution ne tient compte ni de la variation du diamètre de l'enroulement au cours de la manoeuvre, ni de l'usure résultant de la friction répétée du textile sur le berceau, sauf à employer des solutions mécaniques très complexes et donc coûteuses et peu fiables. En outre et surtout, cette solution ne fait que tenter d'éviter le fléchissement de l'axe et est absolument inopérante en cas d'apparition d'un pli.To solve the problem of the deflection of the axis, it has been proposed to equip the box of a cradle placed under the winding and intended to support it. Unfortunately, this solution does not take into account either the variation of the diameter of winding during the maneuver, nor wear resulting from repeated friction textiles on the cradle, except when using very complex mechanical solutions and therefore expensive and unreliable. Furthermore and above all, this solution only attempts avoid bending of the axis and is absolutely ineffective in the event of an fold.

Par ailleurs, pour éviter autant que possible la naissance de plis, il est nécessaire que l'axe d'enroulement soit parfaitement horizontal, et notamment dans le cas d'utilisation de toiles épaisses et de fort grammage. En d'autres termes, les solutions architecturales envisageant des enroulements autour d'axes non horizontaux sont donc à proscrire dans l'état actuel de l'Art antérieur.Furthermore, to avoid wrinkles as much as possible, it is necessary that the winding axis is perfectly horizontal, and in particular in the case using thick fabrics and heavy grammage. In other words, the solutions architectural projects involving windings around non-horizontal axes are therefore to be avoided in the current state of the prior art.

On a proposé dans le document AT 356 352, d'équiper une toile destinée à être enroulée avec des joncs latéraux. Ces joncs sont introduits dans des profilés fendus solidaires du bâti devant lequel la toile est déroulée. Au cours du déroulement, la jonction des joncs avec la lisière de la toile coulisse dans la fente des profilés. Malheureusement, si cette solution permet de maintenir la toile tendue transversalement lors qu'elle est déployée, en revanche, elle provoque sur les bordures , à cause de l'épaisseur des joncs latéraux, des surépaisseurs extrêmement gênantes lors de l'enroulement, qui limitent fortement la longueur de toile utilisable.It has been proposed in document AT 356 352 to equip a canvas intended to be coiled with side rods. These rods are introduced into split profiles integral with the frame in front of which the canvas is unwound. During the course of the junction of rods with the edge of the fabric slides in the slot of the profiles. Unfortunately, if this solution keeps the canvas taut transversely when it is deployed, on the other hand, it provokes borders, because of the thickness of the side rods, extremely thicker troublesome during winding, which greatly limit the length of usable fabric.

Un problème que se propose donc de résoudre l'invention est celui de l'enroulement d'une toile autour d'un axe sans apparition de plis sur la surface de celle-ci.A problem which the invention therefore proposes to solve is that of the winding of a canvas around an axis without the appearance of folds on the surface of this one.

Un second problème est celui de limiter ou de supprimer les surépaisseurs qui naissent lors de l'enroulement de la toile.A second problem is that of limiting or eliminating the excess thicknesses which are born when the canvas is rolled up.

Exposé de l'inventionStatement of the invention

L'invention concerne donc un dispositif d'enroulement-déroulement d'une toile du type store, banne, bâche de piscine etc..., autour d'un axe d'enroulement pivotant par rapport à un châssis, ladite toile ayant une largeur constante entre ces deux lisières latérales.The invention therefore relates to a device for winding and unwinding a fabric. of the blind, awning, pool cover type, etc., around a pivoting winding axis relative to a frame, said fabric having a constant width between these two side edges.

Ce dispositif se caractérise en ce que la toile présente sur chaque lisière latérale un fourreau, et en ce qu'il comprend deux noyaux enfilés chacun dans un des fourreaux, et des moyens pour maintenir l'écartement constant entre ces deux noyaux. This device is characterized in that the fabric has on each lateral edge a sheath, and in that it comprises two cores threaded each in one of the sheaths, and means for maintaining the constant spacing between these two cores.

Autrement dit, l'invention consiste à équiper la toile de fourreaux latéraux et à interdire le rapprochement de ces fourreaux et donc des lisières de la toile. La légère tension transversale à laquelle est soumise la toile évite ainsi le flottement de celle-ci et la naissance de plis. En outre, lors de l'enroulement, les fourreaux latéraux ne provoquent quasiment aucune surépaisseur, ce qui permet de limiter le volume du châssis et corrolairement d'augmenter la longueur de toile utilisable avec un même système d'enroulement.In other words, the invention consists in equipping the canvas with lateral sleeves and prohibit the bringing together of these sleeves and therefore the edges of the canvas. The slight transverse tension to which the fabric is subjected thus avoids the floating of this one and the birth of folds. In addition, during winding, the side sleeves do not cause almost no extra thickness, which limits the volume of the chassis and as a consequence to increase the length of canvas usable with the same winding system.

Avantageusement en pratique, les moyens pour maintenir l'écartement constant entre les deux noyaux sont disposés à proximité de l'axe d'enroulement. On réduit ainsi au strict minimum la distance entre ces moyens et l'axe, sur laquelle pourraient éventuellement apparaítre des plis.Advantageously in practice, the means for keeping the spacing constant between the two cores are arranged near the winding axis. We reduce thus at a bare minimum the distance between these means and the axis, on which could possibly appear folds.

En pratique, le fourreau peut être constitué par une bande d'étoffe repliée dont les bords repliés l'un sur l'autre sont fixés à chaque lisière de la toile, par couture, par soudure à ultra-sons ou thermo-soudure.In practice, the sheath can consist of a folded strip of fabric, the edges folded over each other are fixed to each edge of the canvas, by sewing, by ultrasonic welding or heat welding.

Pour assurer un passage facile du fourreau dans les moyens caratéristiques de l'invention, la face intérieure du fourreau présente un faible coefficient de friction, notamment au regard du noyau qu'il reçoit. Ceci permet de ne pas augmenter le couple nécessaire à l'enroulement de la toile et d'éviter les blocages.To ensure easy passage of the scabbard in the characteristic means of the invention, the inner face of the sheath has a low coefficient of friction, especially with regard to the nucleus it receives. This does not increase the torque required to wind the canvas and avoid blockages.

Ainsi, ce fourreau peut par exemple être réalisé en une étoffe choisie dans le groupe comprenant le polyester, le polyamide, les textiles de verre enduits de polytétrafluoroéthylène.Thus, this sheath can for example be made of a fabric chosen from the group including polyester, polyamide, glass textiles coated with polytetrafluoroethylene.

Dans une forme d'exécution :In one form of execution:

  • les moyens caractéristiques sont constitués par un corps présentant un logement d'axe longitudinal parallèle à la direction de déroulement de la toile, et débouchant en direction de la toile par une ouverture à bords parallèles ;the characteristic means consist of a body having an axis housing longitudinal parallel to the direction of unwinding of the fabric, and opening direction of the canvas by an opening with parallel edges;
  • le noyau enfilé dans chaque fourreau présente une section droite constante et possède une épaisseur minimale supérieure à la largeur de ladite ouverture ;the core threaded into each sheath has a constant cross section and has a minimum thickness greater than the width of said opening;
  • le corps comprend des moyens destinés à interdire le coulissement selon ledit axe longitudinal du noyau enfilé à l'intérieur du logement.the body comprises means intended to prevent sliding along said axis longitudinal of the core threaded inside the housing.

Dans diverses formes pratiques de réalisation, le logement et le noyau ont des formes complémentaires, ce qui permet le guidage à coulissement du noyau dans le corps et plus précisément du logement, ainsi que le positionnement précis du fourreau.In various practical embodiments, the housing and the core have complementary shapes, which allow sliding guidance of the core in the body and more precisely the housing, as well as the precise positioning of the scabbard.

Dans une forme simplifiée, le logement et le noyau sont cylindriques.In a simplified form, the housing and the core are cylindrical.

Dans une variante, le noyau déborde en partie du logement.In a variant, the core partially extends beyond the housing.

Pour assurer une facilité de montage, les moyens destinés à interdire le coulissement du noyau dans le logement sont amovibles du corps. Ceci permet de résoudre le problème de l'introduction du noyau dans le logement, puis son maintien en position lors du fonctionnement proprement dit. Ainsi, dans une forme d'exécution pratique, ces moyens sont constitués par deux axes aptes à coulisser dans le corps, disposés de part et d'autre du noyau et dont les faces en regard viennent enserrer ce noyau au niveau d'un rétreint prévu à cet effet dans celui-ci.To ensure ease of assembly, the means intended to prohibit the sliding of the core in the housing are removable from the body. This allows solve the problem of introducing the core into the housing, then maintaining it in position during actual operation. So in one form of execution practical, these means consist of two axes capable of sliding in the body, arranged on either side of the core and the opposite faces of which enclose this core at a necking provided for this purpose therein.

Dans une variante d'exécution, les moyens destinés à interdire le coulissement du noyau sont constitués par au moins un élément magnétique disposé sur le corps et/ou sur le noyau.In an alternative embodiment, the means intended to prevent sliding of the core consist of at least one magnetic element placed on the body and / or on the nucleus.

Par ailleurs, pour assurer la mise en place dans le châssis, le corps caractéristique de l'invention comporte une platine de solidarisation.Furthermore, to ensure placement in the chassis, the body characteristic of the invention comprises a fixing plate.

Description sommaire des dessinsBrief description of the drawings

La manière de réaliser l'invention, ainsi que les avantages qui en découlent ressortiront bien de la description des modes d'exécution qui suivent, à l'appui des figures annexées dans lesquelles :The manner of carrying out the invention, as well as the advantages which flow therefrom will emerge clearly from the description of the modes of execution which follow, in support of attached figures in which:

La figure 1 est une vue générale en perspective sommaire d'un châssis et d'une toile montés sur un support vertical.Figure 1 is a general summary perspective view of a chassis and a canvas mounted on a vertical support.

La figure 2 est une vue en perspective sommaire du corps monté sur le châssis et à l'intérieur duquel est emprisonné le noyau enfilé dans le fourreau de la toile.Figure 2 is a summary perspective view of the body mounted on the chassis and inside which is trapped the core threaded into the sheath of the canvas.

La figure 3 est une vue de dessus de la même pièce.Figure 3 is a top view of the same room.

La figure 4 est une vue selon les flèches IV-IV' de la figure 3.FIG. 4 is a view along the arrows IV-IV 'of FIG. 3.

La figure 5 est une vue dans laquelle la toile et ses fourreaux sont associées au noyau et au corps décrit ci-avant.Figure 5 is a view in which the canvas and its sheaths are associated with core and body described above.

La figure 6 est une vue en coupe longitudinale du corps dans lequel est mis en place le fourreau et le noyau. Figure 6 is a longitudinal sectional view of the body in which is placed places the sheath and the core.

Les figures 7 et 8 sont des vues en coupe du corps de variantes de réalisation.Figures 7 and 8 are sectional views of the body of alternative embodiments.

Manières de réaliser l'inventionWays to realize the invention

Comme déjà dit, l'invention concerne les dispositifs d'enroulement-déroulement de toiles destinées à recouvrir différents types de surface. Ainsi, il peut s'agir de toiles servant de banne déployées par exemple sur une terrasse pour apporter de l'ombre, ou bien encore de stores, c'est-à-dire de toiles déroulées sur une surface vitrée pour par exemple protéger des rayons du soleil. Il peut également s'agir de toiles de protection servant de bâche comme par exemple sur un camion ou bien encore de toiles servant à la protection et à la couverture de piscine. De façon générale, il s'agit de toile intégrées à des structures textiles.As already said, the invention relates to winding-unwinding devices fabrics intended to cover different types of surface. So it can be canvas serving as a banner deployed for example on a terrace to provide shade, or many more blinds, that is to say canvases unrolled on a glazed surface for par example protect from sunlight. It can also be protective fabrics serving as a tarpaulin, for example on a truck, or as canvases protection and pool cover. Generally speaking, this is canvas integrated into textile structures.

Dans l'exemple explicatif et non limitatif de la figure 1, la toile (1) est montée autour d'un axe (3) pivotant dans un châssis (2).In the explanatory and nonlimiting example of FIG. 1, the fabric (1) is mounted about an axis (3) pivoting in a frame (2).

Conformément à l'invention, la toile (1) présente sur ses lisières des fourreaux (4, 5) et concommitamment le châssis (2) présente des moyens caractéristiques (13) permettant de maintenir constant l'écartement entre les lisières (4, 5).According to the invention, the fabric (1) has sheaths on its edges (4, 5) and concomitantly the chassis (2) has characteristic means (13) allowing the spacing between the selvedges (4, 5) to be kept constant.

De manière plus précise, chacune de ces lisières (4, 5) reçoit une pièce d'étoffe (10) repliée sur elle-même pour former une gaine continue parallèle à la lisière (5). Les bords (8, 9) de cette étoffe (10) sont reliés avec la lisière (4, 5) de la toile (1).More precisely, each of these selvedges (4, 5) receives a piece of fabric (10) folded back on itself to form a continuous sheath parallel to the selvedge (5). The edges (8, 9) of this fabric (10) are connected with the edge (4, 5) of the fabric (1).

La bande (10) destinée à former le fourreau est en un matériau souple pour pouvoir être enroulée à plat, fin pour ne pas causer une surépaisseur et pouvoir être facilement déformable dans le corps des moyens caractéristiques de l'invention. Il importe également qu'il soit très résistant à l'abrasion et présente donc un faible taux de friction vis à vis des matériaux utilisés pour les organes avec lesquels il doit coopérer.The strip (10) intended to form the sheath is made of a flexible material for can be rolled up flat, thin so as not to cause excess thickness and can be easily deformable in the body of the characteristic means of the invention. he also important that it is very resistant to abrasion and therefore has a low rate friction with materials used for the organs with which it must cooperate.

Ainsi, cette bande peut par exemple être réalisée à partir d'un textile de verre enduit de polytétrafluoroéthylène, ou en polyester ou encore en polyamide.Thus, this strip can for example be made from a glass textile coated with polytetrafluoroethylene, or polyester or polyamide.

En fonction du matériau utilisé, et de la nature de la toile, différentes techniques peuvent être utilisées pour solidariser cette bande à la toile (1) au niveau des lisières (4, 5).Depending on the material used, and the nature of the canvas, different techniques can be used to secure this strip to the fabric (1) at the selvedges (4, 5).

Ainsi, on peut associer cette bande à la toile par couture, par soudure aux ultra-sons ou avantageusement par thermo-soudage.Thus, we can associate this strip to the canvas by sewing, by ultrasonic welding or advantageously by heat welding.

Comme déjà dit, l'invention consiste à introduire à l'intérieur de ce fourreau (6, 7) un noyau (12) apte à coopérer avec un corps (13) solidaire du châssis (2). De nombreuses architectures de réalisation sont envisageables et l'invention ne se limite bien entendu pas à la forme d'exécution illustrée aux figures 2 à 6 mais bien au contraire embrasse toutes les variantes dans lesquelles le principe de l'invention est respecté, c'est-à-dire dans lesquelles un noyau est enfilé dans le fourreau et se trouve maintenu par un corps solidaire du châssis, non pas par contact mécanique direct mais avec l'interposition de la bande (10) formant le fourreau (6).As already said, the invention consists in introducing inside this sheath (6, 7) a core (12) able to cooperate with a body (13) integral with the chassis (2). Of many architectures of realization are possible and the invention is not limited of course not to the embodiment illustrated in Figures 2 to 6 but to contrary embraces all the variants in which the principle of the invention is respected, that is to say in which a core is threaded into the sheath and is found held by a body secured to the chassis, not by direct mechanical contact but with the interposition of the strip (10) forming the sheath (6).

Ainsi, dans la forme de réalisation illustrée à la figure 2, le corps (13) se décompose en deux parties principales à savoir une partie (14) qui assure le maintien du noyau, dans le sens transversal de la toile, et une partie (15) dont la fonction est de bloquer le coulissement du même noyau dans le sens longitudinal du déroulement de la toile.Thus, in the embodiment illustrated in Figure 2, the body (13) is breaks down into two main parts, namely a part (14) which ensures the maintenance of the core, in the transverse direction of the fabric, and a part (15) whose function is to block the sliding of the same core in the longitudinal direction of the unwinding of the Web.

La partie (14) proprement dite présente sur sa face en regard de la toile, un logement longitudinal (16) s'étendant sur toute la longueur de la pièce (14). Ce logement (16) présente une ouverture (17) dont les deux bords (18, 19) sont parallèles entre eux et à l'axe longitudinal du logement (16).The part (14) proper presents on its face opposite the canvas, a longitudinal housing (16) extending over the entire length of the part (14). This housing (16) has an opening (17) whose two edges (18, 19) are parallel between them and to the longitudinal axis of the housing (16).

Conformément à une caractéristique essentielle de l'invention, ce logement est apte à recevoir un noyau (12). Différentes formes peuvent être adoptées pour ce noyau (12), étant entendu qu'il est préférable que celui-ci soit de section droite constante, et qu'il est nécessaire que sa section de plus faible épaisseur soit inférieure à la distance séparant les bords (18, 19) de l'ouverture (17), et ceci afin que ce noyau (12) soit retenu et ne puisse pas se déplacer dans le sens transversal de la toile.In accordance with an essential characteristic of the invention, this housing is able to receive a core (12). Different forms can be adopted for this core (12), it being understood that it is preferable for it to be of cross section constant, and it is necessary that its thinner section be less at the distance between the edges (18, 19) of the opening (17), and this so that this core (12) is retained and cannot move in the transverse direction of the fabric.

Dans la forme de réalisation illustrée, ce noyau (12), et le logement complémentaire (16) sont tous deux cylindriques, mais l'invention couvre également différentes variantes de forme, comme notamment illustré à la figure 8 dans laquelle le noyau est ovoïde, voire même des variantes dans lesquelles le logement présente des dimensions plus grandes que le noyau, et une forme différente, tout en présentant une ouverture interdisant la sortie du noyau.In the illustrated embodiment, this core (12), and the housing complementary (16) are both cylindrical, but the invention also covers different shape variants, as illustrated in particular in FIG. 8 in which the nucleus is ovoid, or even variants in which the housing has dimensions larger than the core, and a different shape, while presenting an opening preventing the exit of the nucleus.

Avantageusement, les extrémités (32, 33) du cylindre (12) sont en forme de demi-sphère pour permettre au cylindre (12) de coulisser dans le fourreau (6) sans endommager ce dernier. Bien évidemment, la forme hémisphérique peut être remplacée par toute autre forme douce se raccordant au corps du noyau (12) sans arête vive.Advantageously, the ends (32, 33) of the cylinder (12) are in the form of hemisphere to allow the cylinder (12) to slide in the sleeve (6) without damage it. Obviously, the hemispherical shape can be replaced by any other soft form connecting to the body of the core (12) without sharp edge.

Par ailleurs, le noyau (12) peut être totalement ou partiellement imbriqué dans le corps selon la direction transversale de la toile.Furthermore, the core (12) can be totally or partially nested in the body in the transverse direction of the canvas.

Les formes complémentaires du logement (16) et du noyau (12) permettent à ce dernier de se déplacer par coulissement dans la direction longitudinale de la toile, et ce pendant la phase de mise en place du fourreau à l'intérieur du logement (16).The complementary forms of the housing (16) and the core (12) allow this last to move by sliding in the longitudinal direction of the canvas, and this during the placement phase of the sheath inside the housing (16).

La partie (15) du corps (13) est destinée à interdire le déplacement de ce noyau (12) dans le sens longitudinal.The part (15) of the body (13) is intended to prevent the displacement of this core (12) in the longitudinal direction.

Dans une première forme de réalisation illustrée aux figure 2, 3 et 4, cette partie (15) reçoit deux axes (25, 26), aptes à coulisser selon la direction transversale de la toile, c'est-à-dire perpendiculairement au sens de coulissement du noyau (12) dans le logement (16).In a first embodiment illustrated in FIGS. 2, 3 and 4, this part (15) receives two axes (25, 26), capable of sliding in the transverse direction of the fabric, that is to say perpendicular to the direction of sliding of the core (12) in the housing (16).

Ces axes (25, 26) sont disposés de manière à venir pénétrer le volume correspondant au passage du noyau (12). Complémentairement, le noyau (12) présente deux évidements latéraux (27, 28) à l'intérieur desquels peuvent coulisser librement les axes (25, 26). Lorsque ces axes (25, 26) sont en position dans les rétreints (27, 28), le coulissement du noyau (12) selon l'axe longitudinal est impossible. Néanmoins, comme illustré à la figure 6, l'espace entre les axes (25, 26) et les rétreints (27, 28) permet le passage du tissu formant le fourreau et donc le défilement de celui-ci dans le corps (13).These axes (25, 26) are arranged so as to penetrate the volume corresponding to the passage of the core (12). Additionally, the core (12) has two lateral recesses (27, 28) inside which can slide freely the axes (25, 26). When these axes (25, 26) are in position in the constricted (27, 28), the sliding of the core (12) along the longitudinal axis is impossible. However, as illustrated in Figure 6, the space between the axes (25, 26) and the constrictions (27, 28) allow the passage of the fabric forming the sheath and therefore the scrolling thereof in the body (13).

Il va de soi que d'autres formes de blocage du coulissement du noyau (12) peuvent être employés tout en rentrant dans le champ de l'invention. It goes without saying that other forms of blocking the sliding of the core (12) can be used while falling within the scope of the invention.

Dans une autre variante, le blocage du coulissement du noyau (12) ne s'effectue pas de façon mécanique mais grâce à des moyens magnétiques. Ainsi, comme illustré à la figure 7, le corps (13) peut comporter une partie magnétique (30) formant aimant et apte à attirer une autre zone aimantée, ou simplement ferro-magnétique du noyau (12).In another variant, the sliding of the core (12) is not blocked not mechanically but through magnetic means. So, as illustrated in FIG. 7, the body (13) may include a magnetic part (30) forming a magnet and able to attract another magnetized, or simply ferro-magnetic, zone of the core (12).

Comme déjà dit, il s'avère avantageux que les moyens (10) caractéristiques de l'invention soient disposés, aussi près que possible de l'axe d'enroulement (3), c'est-à-dire par exemple qu'ils soient fixés sur le châssis. A cet effet, le corps (13) présente une platine (40) permettant sa fixation sur différents types de châssis.As already said, it turns out to be advantageous that the means (10) characteristic of the invention are arranged as close as possible to the winding axis (3), that is to say for example that they are fixed on the chassis. To this end, the body (13) has a plate (40) allowing its attachment to different types of chassis.

Le fonctionnement du dispositif conforme à l'invention est le suivant.The operation of the device according to the invention is as follows.

Lors de la mise en place de la toile dans le châssis (2), les noyaux (12) sont introduits dans les fourreaux (6), puis mis en place à l'intérieur du logement (16) du corps (13), les axes (25, 26) étant escamotés. Lorsque le noyau (12) est mis en place, les axes (25, 26) sont extraits pour venir en regard des rétreints (27, 28) du noyau (12) (voir figure 6).When the fabric is placed in the frame (2), the cores (12) are introduced into the sleeves (6), then placed inside the housing (16) of the body (13), the axes (25, 26) being retracted. When the core (12) is in place, the axes (25, 26) are extracted to come opposite the necks (27, 28) of the core (12) (see Figure 6).

Comme illustré à la figure 5, les noyaux (12) et les fourreaux (6) sont maintenus à un écartement constant, ce qui assure la mise en tension transversale, et limite donc autant que possible les risques d'apparition de plis sur l'enroulement.As illustrated in Figure 5, the cores (12) and the sleeves (6) are maintained at a constant spacing, which ensures transverse tensioning, and therefore limits as much as possible the risk of wrinkles appearing on the winding.

Il ressort de ce qui précède que le dispositif d'enroulement-déroulement d'une toile conforme à l'invention présente l'avantage notable d'empêcher la formation de plis sur une toile au moment de son enroulage. Il s'ensuit donc que l'invention autorise la mise en place de toiles de très grande largeur, ce qui n'était pas possible avec les solutions existantes auparavant.It follows from the above that the winding-unwinding device of a canvas according to the invention has the notable advantage of preventing the formation of folds on a canvas at the time of its winding. It therefore follows that the invention authorizes the installation of very large fabrics, which was not possible with previously existing solutions.

En outre, il est possible grâce au perfectionnement constituant l'invention d'utiliser des axes d'enroulement non horizontaux.In addition, it is possible thanks to the improvement constituting the invention use non-horizontal winding shafts.

Claims (14)

Dispositif d'enroulement-déroulement d'une toile (1) du type store, banne, bâche de piscine etc..., autour d'un axe d'enroulement pivotant (3) par rapport à un châssis (2), ladite toile (1) ayant une largeur constante entre ces deux lisières latérales (4, 5), caractérisé : en ce que la toile (1) présente sur chaque lisière latérale (4, 5) un fourreau (6), et en ce qu'il comprend deux noyaux enfilés chacun dans un des fourreaux (6), et des moyens (13) pour maintenir l'écartement constant entre ces deux noyaux. Device for winding and unwinding a fabric (1) of the blind, awning, pool cover type, etc., around a pivoting winding axis (3) relative to a frame (2), said fabric (1) having a constant width between these two lateral edges (4, 5), characterized : in that the fabric (1) has on each lateral edge (4, 5) a sheath (6), and in that it comprises two cores, each threaded into one of the sleeves (6), and means (13) for maintaining the constant spacing between these two cores. Dispositif selon la revendication 1, caractérisé en ce que les moyens (13) sont disposés à proximité de l'axe d'enroulement (3).Device according to claim 1, characterized in that the means (13) are arranged near the winding axis (3). Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que le fourreau (6) est constitué par une bande d'étoffe (10) repliée dont les bords (8, 9) repliés l'un sur l'autre sont fixés à chaque lisière (4, 5) de la toile (1)Device according to either of Claims 1 and 2, characterized in that the sheath (6) consists of a folded strip of fabric (10) whose edges (8, 9) folded over one another are fixed at each edge (4, 5) of the fabric (1) Dispositif selon la revendication 3, caractérisé en ce que la fixation est réalisée par couture, soudure à ultra-sons ou thermo-soudure.Device according to claim 3, characterized in that the fixing is carried out by sewing, ultrasonic welding or heat welding. Dispositif selon la revendication 1, caractérisé en ce que la face intérieure du fourreau (6) présente un faible coefficient de friction.Device according to claim 1, characterized in that the inner face of the sleeve (6) has a low coefficient of friction. Dispositif selon la revendication 5, caractérisé en ce que le fourreau est réalisé en un matériau choisi dans le groupe comprenant : le polyester, le polyamide, les textiles de verre enduits de polytétrafluoroéthylène.Device according to claim 5, characterized in that the sheath is made of a material chosen from the group comprising: polyester, polyamide, glass textiles coated with polytetrafluoroethylene. Dispositif selon la revendication 1, caractérisé en ce que : les moyens sont constitués par un corps (13) présentant un logement (16) d'axe longitudinal parallèle à la direction de déroulement de la toile, et débouchant en direction de la toile par une ouverture (17) à bords (18, 19) parallèles ; le noyau (12) enfilé dans chaque fourreau (6) présente une section droite constante et possède une épaisseur minimale supérieure à la largeur de ladite ouverture (17); le corps (13) comprend des moyens (25, 26) destinés à interdire le coulissement selon ledit axe longitudinal du noyau (12) enfilé à l'intérieur du logement (17). Device according to claim 1, characterized in that: the means consist of a body (13) having a housing (16) with a longitudinal axis parallel to the direction of unwinding of the fabric, and opening out towards the fabric by an opening (17) with edges (18, 19) parallel; the core (12) threaded into each sheath (6) has a constant cross section and has a minimum thickness greater than the width of said opening (17); the body (13) comprises means (25, 26) intended to prevent sliding along said longitudinal axis of the core (12) threaded inside the housing (17). Dispositif selon la revendication 7, caractérisé en ce que le logement (17) et le noyau (12) ont des formes complémentaires.Device according to claim 7, characterized in that the housing (17) and the core (12) have complementary shapes. Dispositif selon la revendication 7, caractérisé en ce que le noyau (12) déborde en partie du logement (17).Device according to claim 7, characterized in that the core (12) projects in part from the housing (17). Dispositif selon la revendication 7, caractérisé en ce que le logement (17) est cylindrique.Device according to claim 7, characterized in that the housing (17) is cylindrical. Dispositif selon la revendication 8, caractérisé en ce que les moyens destinés à interdire le coulissement du noyau (12) sont amovibles du corps (13).Device according to claim 8, characterized in that the means intended to prevent the sliding of the core (12) are removable from the body (13). Dispositif selon la revendication 11, caractérisé en ce que les moyens sont constitués par deux axes (25, 26) aptes à coulisser dans le corps (13), disposés de part et d'autre du noyau (12) et dont les faces en regard viennent enserrer ce noyau (12) au niveau d'un rétreint (27, 28) prévu à cet effet dans celui-ci.Device according to claim 11, characterized in that the means consist of two axes (25, 26) capable of sliding in the body (13), arranged on either side of the core (12) and the opposite faces of which surround this core (12) at a constriction (27, 28) provided for this purpose therein. Dispositif selon la revendication 7, caractérisé en ce que les moyens destinés à interdire le coulissement du noyau sont constitués par au moins un élément magnétique (30) disposé sur le corps (13) et/ou le noyau (12) .Device according to claim 7, characterized in that the means intended to prevent the sliding of the core consist of at least one magnetic element (30) disposed on the body (13) and / or the core (12). Dispositif selon la revendication 7, caractérisé en ce que le corps comporte une platine (40) de solidarisation au châssis.Device according to claim 7, characterized in that the body comprises a plate (40) for securing to the chassis.
EP97420093A 1996-06-19 1997-06-18 Device for winding and unwinding a fabric Expired - Lifetime EP0818602B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9607829 1996-06-19
FR9607829A FR2750124B1 (en) 1996-06-19 1996-06-19 DEVICE FOR WINDING AND UNWINDING A TEXTILE ON A MECHANISM OF THE TYPE EQUIPPED WITH BLINDS, POOL COVERS, TRUCK OR TENT COVERS ETC ...

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EP0818602A1 true EP0818602A1 (en) 1998-01-14
EP0818602B1 EP0818602B1 (en) 2004-01-07

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EP (1) EP0818602B1 (en)
DE (1) DE69727104T2 (en)
FR (1) FR2750124B1 (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
FR3004212A1 (en) * 2013-04-04 2014-10-10 Ferrari Serge Sas GUIDING DEVICE, SOLAR PROTECTION STORAGE CANVAS AND ASSEMBLY EQUIPPED WITH SUCH A GUIDE DEVICE
EP2835490A3 (en) * 2013-08-08 2015-04-15 Peter Charles Andre de la Porte Door for industrial building
EP2868842A1 (en) * 2013-11-04 2015-05-06 Annonay Productions France Device for locking a swimming-pool cover in an extended position
EP4372196A1 (en) * 2022-11-17 2024-05-22 Frinova GmbH Quick-running door

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Publication number Priority date Publication date Assignee Title
DE102006020573A1 (en) * 2006-05-01 2007-11-15 Mallmann, Hans-Jürgen Stretching device for e.g. marquee of right-angled tarpaulin, has plastic lateral channel held in another lateral channel such that chamber is not vacated and moved in extracting direction
DE102009042913A1 (en) * 2009-09-24 2011-04-07 Schmitz-Werke Gmbh + Co. Kg Blind for use in use in interior of building, has hollow seams wound to thread pins and arranged at side edges of extended section of awning fabric for fixing awning fabric in guiding hollow rails

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AT356352B (en) * 1977-11-25 1980-04-25 Dolenz Ernst SIDE GUIDE FOR ROLLER CURTAINS

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DK157882A (en) * 1982-04-06 1983-10-07 Rasmussen Holding As V Kann ROLLER BLIND ARRANGEMENT

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AT356352B (en) * 1977-11-25 1980-04-25 Dolenz Ernst SIDE GUIDE FOR ROLLER CURTAINS

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3004212A1 (en) * 2013-04-04 2014-10-10 Ferrari Serge Sas GUIDING DEVICE, SOLAR PROTECTION STORAGE CANVAS AND ASSEMBLY EQUIPPED WITH SUCH A GUIDE DEVICE
EP2799657A1 (en) * 2013-04-04 2014-11-05 Serge Ferrari SAS Guiding device, fabric of a solar protection device, and assembly provided with such a guiding device
EP2835490A3 (en) * 2013-08-08 2015-04-15 Peter Charles Andre de la Porte Door for industrial building
US9194178B2 (en) 2013-08-08 2015-11-24 Peter Charles Andre de la Porte Door for industrial building
EP2868842A1 (en) * 2013-11-04 2015-05-06 Annonay Productions France Device for locking a swimming-pool cover in an extended position
FR3012834A1 (en) * 2013-11-04 2015-05-08 Annonay Productions France DEVICE FOR LOCKING A SWIMMING POOL COVER IN A DEPLOYED POSITION
EP4372196A1 (en) * 2022-11-17 2024-05-22 Frinova GmbH Quick-running door
WO2024104713A1 (en) * 2022-11-17 2024-05-23 Frinova Gmbh High-speed door

Also Published As

Publication number Publication date
FR2750124B1 (en) 1998-07-24
DE69727104T2 (en) 2004-07-08
FR2750124A1 (en) 1997-12-26
DE69727104D1 (en) 2004-02-12
EP0818602B1 (en) 2004-01-07

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