EP1472166A1 - Device for winding and/or unwinding a film at a constant speed - Google Patents

Device for winding and/or unwinding a film at a constant speed

Info

Publication number
EP1472166A1
EP1472166A1 EP03709920A EP03709920A EP1472166A1 EP 1472166 A1 EP1472166 A1 EP 1472166A1 EP 03709920 A EP03709920 A EP 03709920A EP 03709920 A EP03709920 A EP 03709920A EP 1472166 A1 EP1472166 A1 EP 1472166A1
Authority
EP
European Patent Office
Prior art keywords
film
edges
reel
winding
diabolo
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.)
Withdrawn
Application number
EP03709920A
Other languages
German (de)
French (fr)
Inventor
Olivier Mognetti
Vincent Monet
Patrice Lavergne
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.)
Kis SAS
Original Assignee
Kis SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kis SAS filed Critical Kis SAS
Publication of EP1472166A1 publication Critical patent/EP1472166A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/106—Arrangements for effecting positive rotation of web roll in which power is applied to web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/22—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4143—Performing winding process
    • B65H2301/41432—Performing winding process special features of winding process
    • B65H2301/414327—Performing winding process special features of winding process winding on core irregular inner or outer longitudinal profile, e.g. stepped or grooved

Definitions

  • the present invention relates to a device for winding and / or unwinding a film at constant speed. It applies in particular, but not exclusively, to a film in an optoelectronic device such as a scanning analysis device ("scanning").
  • a roller or a reel driven by a motor is used.
  • the film has a curved shape. Therefore, the winding of the film on a cylindrical surface requires a significant resistance force so that the film is pressed against the cylindrical surface of the roller. This tension therefore generates a risk of degradation of the film. In addition, as soon as the resistant force disappears, the winding present on the roller tends to swell and unwind with all the drawbacks that this implies.
  • the film drive must be uniform over its entire width and must lead to a constant running speed independent of the thickness of the winding present on the reel. he turns out that such a result can only be obtained by means of cylindrical coils driven by a motor by means of the use of complex and costly arrangements (variation of the drive speed of the roller as a function of the thickness of the winding ).
  • rollers or cylindrical coils to drive the film creates the risk of scratches or deterioration (by friction) of the useful part of the film.
  • the object of the invention is therefore more particularly to eliminate these drawbacks and to solve these problems:
  • a reel comprising two coaxial annular bearing zones of the same diameter separated from one another by a concavity and spaced from each other by a distance slightly less than the width of the film, these two zones d '' support pivot freely,
  • guiding means designed so as to guide the film laterally in order to bring it onto the reel so that the lateral edges of the film come to bear respectively on the two bearing zones of the reel,
  • the bearing zones can be integral with one another or even independent from one another in rotation.
  • said belts driven by a motor, advance the film at a constant linear speed and ensure the winding of the film on the reel regardless of the thickness of the winding.
  • This device avoids any risk of deterioration for the reasons mentioned above, unlike conventional devices.
  • Figure 1 is an elevational view showing the layout of the various components of the device for guiding, driving and winding a film
  • Figure 2 shows the section along AA of Figure 1;
  • FIG. 3 is a partial perspective view of FIG. 1.
  • the structure of the device comprises two parallel metal plates 1a, 1b separated by three spacers 2a, 2b, 2c arranged along the upper side of the plates. These various elements constitute a rigid assembly constituting the device for guiding, driving and winding the film 3.
  • the distance between the two metal plates 1a, 1b is slightly greater than the width of the film 3 to be analyzed.
  • the device comprises means for guiding, driving and winding the film.
  • the film guiding device 3 comprises in a shooting area two parallel coaxial rollers 4a, 4b, of which only the roller 4a is shown, rotatably mounted by means of ball bearings and held by a pair of against plates 5a, 5b, 6a, 6b, of which only against plates 5a and 6a are shown.
  • the lateral edges of the film 3 come to bear respectively on these two rollers along an arc of a circle so that the film follows a circular trajectory.
  • this circular trajectory it has a cylindrical shape, with a straight generator. This position makes it possible to obtain in the shooting zone a rectilinear transverse zone to the right of which is a slot made in a plate 7 secured to the two plates forming a rectangular space for the routing of the light rays passing through the film. .
  • the film drive device 3 comprises two belts 8a, 8b, of which only the belt 8a is shown, which run synchronously and which respectively come to bear on the lateral edges of the film 3 at the level of the circular path. This produces a friction drive of the two lateral edges of the film which eliminates any possibility of speed variation between these two edges.
  • the two belts 8a, 8b have, on the side opposite the film 3, notches; the belts are driven by means of two coaxial toothed pulleys 9a and 9b mounted on an axis 10 and driven by an electric motor 11 and free toothed pulleys, of which only the pulley 12a is shown.
  • the tension and positioning of the two belts 8a, 8b are ensured by two sets of rollers, of which only the set 13a, 13b, 13c is shown.
  • the film winding device 3 consists of a diabolo-shaped reel 14 having a concave shape of revolution situated between its two edges.
  • the dolly 14 is rotatably mounted along an axis 15 parallel to the axis of the rollers 4a, 4b with spring return. This axis is guided so as to be able to move along an oblong hole 16 as a function of the thickness of the winding of the film 3 on the diabolo 14.
  • the main axis of the oblong hole 16 is oriented eg endicularly to the plane tangent of application of the belts on the edges of the film (application force collinear with the main axis oblong hole 16).
  • the arms 17a, 17b, of which only the arm 17a is shown, are articulated around the axis O and are intended to press the film 3 at the side edges, and this, independently of the level of winding of the film 3 on the dolly 14, the volume of the winding zone of the film therefore evolves as a function of the length of the film wound on the diabolo.
  • the arms 18a, 18b, of which only the arm 18a is shown, are intended to guide the film 3 during its introduction or its extraction.
  • the angular speed of the dolly which does not have its own drive means, depends on the level of winding of the film 3.
  • the film 3 is wound on the dolly 14 without friction or tension .

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Winding Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

The invention relates to a device for winding and/or unwinding a film at a constant speed. The inventive device consists of: a reel (14) comprising two coaxial annular support areas, having the same diameter, which are separated by a concavity and which are spaced out from one another by a distance that is slightly smaller than the width of the film, said two support areas pivoting freely; guide means (17a, 18a) which are designed so as to guide the film laterally in order to wind said film on the reel such that the lateral edges thereof rest on the two support areas of the reel respectively; and two parallel drive belts (8a) which are supported respectively on said edges, along the length of an arc of circle with a predetermined angle at the centre. The invention applies to a film in an optoelectronic apparatus, such as a scanning and analysis device.

Description

DISPOSITIF POUR L ' ENROULEMENT ET/OU LE DEROULEMENT D ' UN FILM A VITESSE CONSTANTEDEVICE FOR WINDING AND / OR UNWINDING A CONSTANT SPEED FILM
La présente invention concerne un dispositif pour l'enroulement et/ou le déroulement d'un film à vitesse constante. Elle s'applique notamment, mais non exclusivement, à un film dans un appareil optoélectronique tel qu'un dispositif d'analyse par balayage (« scanérisation »).The present invention relates to a device for winding and / or unwinding a film at constant speed. It applies in particular, but not exclusively, to a film in an optoelectronic device such as a scanning analysis device ("scanning").
Habituellement pour effectuer l'enroulement ou le déroulement d'un film, on utilise un galet ou une bobine entraînée par un moteur.Usually to make the winding or unwinding of a film, a roller or a reel driven by a motor is used.
On constate que cette solution, pourtant universelle pose de nombreux problèmes :We see that this solution, however universal, poses many problems:
- A l'état déroulé, le film possède une forme bombée. De ce fait, l' enroulement du film sur une surface cylindrique exige un effort résistant non négligeable pour que le film se trouve plaqué contre la surface cylindrique du galet. Cette tension engendre donc un risque de dégradation du film. En outre, dès que l'effort résistant disparaît, l'enroulement présent sur le galet a tendance à se gonfler et à se débobiner avec tous les inconvénients que cela implique.- In the unrolled state, the film has a curved shape. Therefore, the winding of the film on a cylindrical surface requires a significant resistance force so that the film is pressed against the cylindrical surface of the roller. This tension therefore generates a risk of degradation of the film. In addition, as soon as the resistant force disappears, the winding present on the roller tends to swell and unwind with all the drawbacks that this implies.
- L'entraînement du film doit être homogène sur toute sa largeur et doit conduire à l'obtention d'une vitesse de défilement constante indépendante de l'épaisseur de l'enroulement présent sur la bobine. Il s'avère qu'un tel résultat ne peut être obtenu au moyen de bobines cylindriques entraînées par moteur que moyennant l'usage de dispositions complexes et coûteuses (variation de la vitesse d'entraînement du galet en fonction de l'épaisseur de l'enroulement).- The film drive must be uniform over its entire width and must lead to a constant running speed independent of the thickness of the winding present on the reel. he turns out that such a result can only be obtained by means of cylindrical coils driven by a motor by means of the use of complex and costly arrangements (variation of the drive speed of the roller as a function of the thickness of the winding ).
- L'usage de galets ou de bobines cylindriques pour l'entraînement du film engendre des risques de rayures ou de détérioration (par friction) de la partie utile du film.- The use of rollers or cylindrical coils to drive the film creates the risk of scratches or deterioration (by friction) of the useful part of the film.
L'invention a donc plus particulièrement pour but de supprimer ces inconvénients et de résoudre ces problèmes :The object of the invention is therefore more particularly to eliminate these drawbacks and to solve these problems:
- en entraînant de façon homogène le film sur toute sa largeur avec une vitesse de défilement indépendante du niveau d'enroulement,- by uniformly driving the film over its entire width with a running speed independent of the winding level,
- en enroulant le film sur une bobine non motorisée.- by winding the film on a non-motorized reel.
Elle propose à cet effet un dispositif comprenant :To this end, it offers a device comprising:
- une bobine comportant deux zones d'appui annulaires coaxiales de même diamètre séparées l'une de l'autre par une concavité et écartées l'une de l'autre d'une distance légèrement inférieure à la largeur du film, ces deux zones d'appui pivotent librement,- A reel comprising two coaxial annular bearing zones of the same diameter separated from one another by a concavity and spaced from each other by a distance slightly less than the width of the film, these two zones d '' support pivot freely,
- des moyens de guidage conçus de manière à guider latéralement le film pour l'amener sur la bobine de telle sorte que les bords latéraux du film viennent respectivement porter sur les deux zones d'appui de la bobine,guiding means designed so as to guide the film laterally in order to bring it onto the reel so that the lateral edges of the film come to bear respectively on the two bearing zones of the reel,
- deux courroies d'entraînement parallèles venant respectivement en appui sur lesdits bords le long d'un arc de cercle d'angle au centre prédéterminé.- Two parallel drive belts respectively coming to bear on said edges along an arc of a circle of angle at the predetermined center.
Avantageusement, les zones d'appui peuvent être solidaires l'une de l'autre ou encore indépendantes l'une de l'autre en rotation. Dans tous les cas, lesdites courroies, entraînées par un moteur, font avancer le film à une vitesse linéaire constante et assurent l'enroulement du film sur la bobine indépendamment de l'épaisseur de l'enroulement.Advantageously, the bearing zones can be integral with one another or even independent from one another in rotation. In all cases, said belts, driven by a motor, advance the film at a constant linear speed and ensure the winding of the film on the reel regardless of the thickness of the winding.
Ce dispositif permet d'éviter tout risque de détérioration pour les raisons précédemment évoquées, contrairement aux dispositifs conventionnels.This device avoids any risk of deterioration for the reasons mentioned above, unlike conventional devices.
Un mode d'exécution de l'invention est décrit ci-après, à titre d'exemple non limitatif, avec références aux dessins annexés dans lesquels :An embodiment of the invention is described below, by way of nonlimiting example, with reference to the appended drawings in which:
La figure 1 est une vue en élévation montrant l'implantation des différents éléments constitutifs du dispositif pour le guidage, l'entraînement et l'enroulement d'un film ;Figure 1 is an elevational view showing the layout of the various components of the device for guiding, driving and winding a film;
La figure 2 représente la coupe selon AA de la figure 1 ;Figure 2 shows the section along AA of Figure 1;
La figure 3 est une vue en perspective partielle de la figure 1.FIG. 3 is a partial perspective view of FIG. 1.
Dans cet exemple, la structure du dispositif comporte deux platines métalliques parallèles la, lb séparées par trois entretoises 2a, 2b, 2c disposées le long du côté supérieur des platines. Ces différents éléments constituent un ensemble rigide constitutif du dispositif pour le guidage, l'entraînement et l'enroulement du film 3. La distance qui sépare les deux platines métalliques la, lb est légèrement supérieure à la largeur du film 3 à analyser.In this example, the structure of the device comprises two parallel metal plates 1a, 1b separated by three spacers 2a, 2b, 2c arranged along the upper side of the plates. These various elements constitute a rigid assembly constituting the device for guiding, driving and winding the film 3. The distance between the two metal plates 1a, 1b is slightly greater than the width of the film 3 to be analyzed.
Conformément à l'invention, le dispositif comporte des moyens de guidage, d'entraînement et d'enroulement du film.According to the invention, the device comprises means for guiding, driving and winding the film.
Le dispositif de guidage du film 3 comprend dans une zone de prise de vue deux galets coaxiaux parallèles 4a, 4b, dont seul le galet 4a est représenté, montés rotatifs à l'aide de roulements à bille et maintenus par une paire de contre-plaques 5a, 5b, 6a, 6b, dont seules les contre-plaques 5a et 6a sont représentées. Les bords latéraux du film 3 viennent respectivement en appui sur ces deux galets le long d'un arc de cercle de manière à ce que le film suive une trajectoire circulaire. Ainsi, le long de cette trajectoire circulaire, il présente une forme cylindrique, à génératrice rectiligne. Cette position permet d'obtenir dans la zone de prise de vue une zone transversale rectiligne au droit de laquelle est disposée une fente réalisée dans une plaque 7 solidaire des deux platines formant un espace rectangulaire pour l'acheminement des rayons lumineux passant au travers du film.The film guiding device 3 comprises in a shooting area two parallel coaxial rollers 4a, 4b, of which only the roller 4a is shown, rotatably mounted by means of ball bearings and held by a pair of against plates 5a, 5b, 6a, 6b, of which only against plates 5a and 6a are shown. The lateral edges of the film 3 come to bear respectively on these two rollers along an arc of a circle so that the film follows a circular trajectory. Thus, along this circular trajectory, it has a cylindrical shape, with a straight generator. This position makes it possible to obtain in the shooting zone a rectilinear transverse zone to the right of which is a slot made in a plate 7 secured to the two plates forming a rectangular space for the routing of the light rays passing through the film. .
Le dispositif d'entraînement du film 3 comprend deux courroies 8a, 8b, dont seule la courroie 8a est représentée, qui défilent de façon synchrone et qui viennent respectivement en appui sur les bords latéraux du film 3 au niveau de la trajectoire circulaire. On obtient ainsi un entraînement par friction des deux bords latéraux de film qui supprime toute possibilité de variation de vitesse entre ces deux bords. Les deux courroies 8a, 8b présentent, du côté opposé au film 3, des crantages ; l'entraînement des courroies s'effectuant au moyen de deux poulies crantées 9a et 9b coaxiales montées sur un axe 10 et entraînées par un moteur électrique 11 et des poulies crantées libres, dont seule la poulie 12a est représentée. La tension et le positionnement des deux courroies 8a, 8b sont assurés par deux jeux de galets, dont seul le jeu 13a, 13b, 13c est représenté.The film drive device 3 comprises two belts 8a, 8b, of which only the belt 8a is shown, which run synchronously and which respectively come to bear on the lateral edges of the film 3 at the level of the circular path. This produces a friction drive of the two lateral edges of the film which eliminates any possibility of speed variation between these two edges. The two belts 8a, 8b have, on the side opposite the film 3, notches; the belts are driven by means of two coaxial toothed pulleys 9a and 9b mounted on an axis 10 and driven by an electric motor 11 and free toothed pulleys, of which only the pulley 12a is shown. The tension and positioning of the two belts 8a, 8b are ensured by two sets of rollers, of which only the set 13a, 13b, 13c is shown.
Le dispositif d'enroulement du film 3 est constitué d'une bobine en forme de diabolo 14 comportant une forme concave de révolution située entre ses deux bordures. Le diabolo 14 est monté rotatif suivant un axe 15 parallèle à l'axe des galets 4a, 4b avec rappel par ressort. Cet axe est guidé de manière à pouvoir se déplacer le long d'un perçage oblong 16 en fonction de l'épaisseur de l'enroulement du film 3 sur le diabolo 14. L'axe principal du perçage oblong 16 est orienté pe endiculairement au plan tangent d'application des courroies sur les bords du film (force d'application colinéaire à l'axe principal du trou oblong 16). Deux paires de bras 17a, 17b, 18a, 18b, dont seuls les bras 17a et 18a sont représentés, guident le film autour de la bobine en forme de diabolo 14. Les bras 17a, 17b, dont seul le bras 17a est représenté, sont articulés autour de l'axe O et sont destinés à plaquer le film 3 au niveau des bords latéraux, et ce, d'une manière indépendante du niveau d'enroulement du film 3 sur le diabolo 14, le volume de la zone d'enroulement du film évolue donc en fonction de la longueur du film enroulé sur le diabolo. Les bras 18a, 18b, dont seul le bras 18a est représenté, sont destinés à guider le film 3 lors de son introduction ou de son extraction.The film winding device 3 consists of a diabolo-shaped reel 14 having a concave shape of revolution situated between its two edges. The dolly 14 is rotatably mounted along an axis 15 parallel to the axis of the rollers 4a, 4b with spring return. This axis is guided so as to be able to move along an oblong hole 16 as a function of the thickness of the winding of the film 3 on the diabolo 14. The main axis of the oblong hole 16 is oriented eg endicularly to the plane tangent of application of the belts on the edges of the film (application force collinear with the main axis oblong hole 16). Two pairs of arms 17a, 17b, 18a, 18b, of which only the arms 17a and 18a are shown, guide the film around the diabolo-shaped reel 14. The arms 17a, 17b, of which only the arm 17a is shown, are articulated around the axis O and are intended to press the film 3 at the side edges, and this, independently of the level of winding of the film 3 on the dolly 14, the volume of the winding zone of the film therefore evolves as a function of the length of the film wound on the diabolo. The arms 18a, 18b, of which only the arm 18a is shown, are intended to guide the film 3 during its introduction or its extraction.
Il est à noter que la vitesse angulaire du diabolo, celui-ci ne disposant pas de moyen propre d'entraînement, est fonction du niveau d'enroulement du film 3. Ainsi le film 3 se trouve enroulé sur le diabolo 14 sans friction ni tension. It should be noted that the angular speed of the dolly, which does not have its own drive means, depends on the level of winding of the film 3. Thus the film 3 is wound on the dolly 14 without friction or tension .

Claims

Revendications claims
1. Dispositif pour l'enroulement et/ou le déroulement d'un film à vitesse constante, caractérisé en ce qu'il comprend :1. Device for winding and / or unwinding a film at constant speed, characterized in that it comprises:
- une bobine (14) comportant deux zones d'appui annulaires coaxiales de même diamètre séparées l'une de l'autre par une concavité et écartées l'une de l'autre d'une distance légèrement inférieure à la largeur du film (3), ces deux zones d'appui pivotant librement, - des moyens de guidage (17a, 17b, 18a, 18b) conçus de manière à guider latéralement le film pour l'amener sur la bobine de telle sorte que les bords latéraux du film viennent respectivement porter sur les deux zones d'appui de la bobine,- a coil (14) comprising two coaxial annular bearing zones of the same diameter separated from one another by a concavity and spaced from each other by a distance slightly less than the width of the film (3 ), these two freely pivoting support zones, - guide means (17a, 17b, 18a, 18b) designed so as to guide the film laterally to bring it onto the reel so that the lateral edges of the film come respectively bear on the two support zones of the coil,
- deux courroies d'entraînement parallèles (8a, 8b) venant respectivement en appui sur lesdits bords le long d'un arc de cercle d'angle au centre prédéterminé.- two parallel drive belts (8a, 8b) coming respectively to bear on said edges along an arc of a circle of angle at the predetermined center.
2. Dispositif selon la revendication 1 , caractérisé en ce que lesdites zones d'appui sont solidaires l'une de l'autre.2. Device according to claim 1, characterized in that said support zones are integral with one another.
3. Dispositif selon la revendication 1 , caractérisé en ce que lesdites zones d'appui sont indépendantes l'une de l'autre en rotation.3. Device according to claim 1, characterized in that said support zones are independent of each other in rotation.
4. Dispositif selon la revendication 1, caractérisé en ce que lesdites courroies (8a, 8b) sont entraînées par un moteur (11). 4. Device according to claim 1, characterized in that said belts (8a, 8b) are driven by a motor (11).
5. Dispositif selon la revendication 1 , caractérisé en ce que la bobine (14) présente la forme d'un diabolo comprenant deux bordures latérales circulaires sur lesquelles viennent en appui les bords latéraux du film (3).5. Device according to claim 1, characterized in that the reel (14) has the shape of a diabolo comprising two circular lateral edges on which bear the lateral edges of the film (3).
6. Dispositif selon la revendication 5, caractérisé en ce que ladite bobine en forme de diabolo comporte une forme concave de révolution située entre ses deux bordures.6. Device according to claim 5, characterized in that said diabolo-shaped coil has a concave shape of revolution located between its two edges.
7. Dispositif selon la revendication 1, caractérisé en ce que ladite bobine en forme de diabolo comporte un axe (15) sur lequel il est monté rotatif.7. Device according to claim 1, characterized in that said coil in the form of a diabolo comprises an axis (15) on which it is rotatably mounted.
8. Dispositif selon la revendication 7, caractérisé en ce que ledit axe est mobile en translation et est guidé le long d'un perçage oblong (16).8. Device according to claim 7, characterized in that said axis is movable in translation and is guided along an oblong bore (16).
9. Dispositif selon la revendication 8 , caractérisé en ce que l'axe principal dudit perçage est orienté perpendiculairement au plan tangent d'application des courroies (8a, 8b) sur les bords du film.9. Device according to claim 8, characterized in that the main axis of said bore is oriented perpendicular to the tangent plane of application of the belts (8a, 8b) on the edges of the film.
10. Dispositif selon la revendication 1, caractérisé en ce que lesdits moyens de guidage comportent des bras (17a, 17b, 18a, 18b) montés autour du diabolo.10. Device according to claim 1, characterized in that said guide means comprise arms (17a, 17b, 18a, 18b) mounted around the diabolo.
11. Dispositif selon la revendication 10, caractérisé en ce qu'au moins l'un desdits bras de guidage est monté articulé autour d'un axe (O). 11. Device according to claim 10, characterized in that at least one of said guide arms is mounted articulated about an axis (O).
EP03709920A 2002-02-05 2003-02-05 Device for winding and/or unwinding a film at a constant speed Withdrawn EP1472166A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0201453 2002-02-05
FR0201453A FR2835514B1 (en) 2002-02-05 2002-02-05 DEVICE FOR WINDING UP AND/OR UNWINDING OF A CONSTANT SPEED FILM
PCT/FR2003/000365 WO2003066491A1 (en) 2002-02-05 2003-02-05 Device for winding and/or unwinding a film at a constant speed

Publications (1)

Publication Number Publication Date
EP1472166A1 true EP1472166A1 (en) 2004-11-03

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Family Applications (1)

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EP03709920A Withdrawn EP1472166A1 (en) 2002-02-05 2003-02-05 Device for winding and/or unwinding a film at a constant speed

Country Status (6)

Country Link
US (1) US20040238680A1 (en)
EP (1) EP1472166A1 (en)
JP (1) JP2005516869A (en)
AU (1) AU2003214350A1 (en)
FR (1) FR2835514B1 (en)
WO (1) WO2003066491A1 (en)

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Also Published As

Publication number Publication date
FR2835514A1 (en) 2003-08-08
US20040238680A1 (en) 2004-12-02
FR2835514B1 (en) 2004-04-02
JP2005516869A (en) 2005-06-09
WO2003066491A1 (en) 2003-08-14
AU2003214350A1 (en) 2003-09-02

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