EP0620297A1 - Apparatus for separating the fibre web from the doffer cylinder in a carding machine - Google Patents

Apparatus for separating the fibre web from the doffer cylinder in a carding machine Download PDF

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Publication number
EP0620297A1
EP0620297A1 EP94400813A EP94400813A EP0620297A1 EP 0620297 A1 EP0620297 A1 EP 0620297A1 EP 94400813 A EP94400813 A EP 94400813A EP 94400813 A EP94400813 A EP 94400813A EP 0620297 A1 EP0620297 A1 EP 0620297A1
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EP
European Patent Office
Prior art keywords
cylinder
toothed
web
calendar
comb
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Granted
Application number
EP94400813A
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German (de)
French (fr)
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EP0620297B1 (en
Inventor
Henri Genevray
Marc Brabant
Xavier Catry
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Thibeau SA
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Thibeau SA
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Priority claimed from FR9304445A external-priority patent/FR2704003B1/en
Application filed by Thibeau SA filed Critical Thibeau SA
Publication of EP0620297A1 publication Critical patent/EP0620297A1/en
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Publication of EP0620297B1 publication Critical patent/EP0620297B1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers

Definitions

  • the present invention relates to carding machines, that is to say textile machines for producing a sheet of fibers or for making a ribbon or wick of fibers from a sheet, and it relates more particularly a device for carrying out the separation of the veil of fibers present on the painter cylinder.
  • the beating comb separation system works correctly, but it has the disadvantage of not allowing significant linear speeds of the web, the upper limit being of the order of 90 m / min.
  • the detaching cylinder system makes it possible to exceed this speed limit, but it nevertheless has the following drawbacks: the veil of fibers tends to be wound on at least one of these cylinders, the veil is poorly guided during start-up machine to reach these cylinders, and we can not use the same separation system for all fibers, especially when it is necessary to work on highly sized or dyed fibers.
  • the invention aims to remedy these drawbacks by providing a separation device which allows work at high speed, which can be used for all fibers, which avoids winding above and which allows good guidance of the web. fiber.
  • the device according to the invention which includes a comb beating downstream of the painter cylinder, is characterized in that it is constituted by a toothed cylinder which cooperates with the painter cylinder to detach the web, the comb leaf cooperating with this toothed cylinder at the start of the card to separate the web, while, at high speed, the web leaves the toothed cylinder directly without cooperating with the flying comb.
  • this toothed cylinder rotates in the same direction as the painter cylinder.
  • the lining of the toothed separation cylinder is rigid and it is constituted by triangular teeth, in particular isosceles or equilateral.
  • the distance between the axes of the toothed cylinder and the calendar cylinder is between 100 and 300 mm, with a value preferential 200 mm.
  • the card comprises, in known manner, a comb cylinder 1 which receives a veil of fibers 2 taken from an upstream member (not shown).
  • the card also comprises, in a known manner, a beating comb 3, followed by at least one exit calendar cylinder 4, the latter directing the web 2 towards a collecting belt 6.
  • the cylinders 1 and 4 rotate in the same direction, for example anti-clockwise, as shown in the figure.
  • the beating comb 3 is driven by an oscillatory movement.
  • a toothed cylinder 5 which rotates in the same direction as the painter cylinder 1 and which cooperates tangentially with it. ci to remove the veil 2.
  • the toothed cylinder 5, preferably, is equipped, not shown, with a fitting with rigid metal teeth, the shape of the teeth being triangular, for example isosceles or equilateral.
  • the cylinders 1,5 and 4 rotate at low speed and the web 2, as shown in dashes, remains first on the toothed cylinder 5 as far as the action zone of the beating comb 3 which separates the veil 2 from the toothed cylinder 5 and sends the veil to the calendar cylinder 4.
  • the web 2 tends to leave the toothed cylinder 5 directly to reach the calendar cylinder 4, so that the swing comb 3 no longer performs a function, except a safety function by folding the web 2 if it leaves its normal path.
  • the beating comb 3 therefore only intervenes for the low speeds of the card, for which it is particularly effective, while, at high speed of the card, the web 2 passes directly from the toothed cylinder 5 to the cylinder calendar 4.
  • the two cylinders 4 and 5 each have a diameter which is greater than a limit value; it is estimated, although it is not imperative, that each of these two cylinders should have a diameter greater than about 60 to 80 mm.
  • the two cylinders 4 and 5 must not be too close to each other, because of the risks of fouling of the calendar cylinder 4, and consequently of the risks of winding of the veil or fibers on that -this.
  • these two cylinders should not be too far apart from each other, for good control of the web and to prevent it from being disturbed on the edges, resulting in a reduction in speed system limit.
  • the distance between the axis of the toothed cylinder 5 and the axis of the calendar cylinder 4 is between 100 and 300 mm, with a preferred value of around 200 mm.
  • the toothed cylinder 5 has a diameter of approximately 160 mm
  • the calendar cylinder has a diameter of approximately 120 mm and the distance between these two cylinders is 200 mm.
  • FIG. 2 There is shown in FIG. 2 is a variant embodiment and application of the invention, which does not differ from FIG. 1 that by removing the calendar cylinder 4, the web 2 therefore passing directly, at high speed, from the toothed cylinder 5 to the convergence member. At low speed, as before, the veil is detached from the toothed cylinder 5 by the beating comb 3, but this time being directed directly towards the combing member.
  • the embodiments of Figs. 1 and 2 are similar, so a new description is unnecessary.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The device according to the invention for separating the fleece of fibres 2 from the combing (doffing) cylinder 1 in a carding machine including a stripper comb 3 downstream of the combing cylinder, is characterised in that it is made up of a toothed cylinder 5 interacting with the combing cylinder 1 in order to detach the fleece 2 therefrom, the stripper comb interacting with the said toothed cylinder at the beginning of carding in order to separate the fleece therefrom, whilst, at high speed, the fleece leaves the said toothed cylinder 5 directly without interaction with the stripper comb. <IMAGE>

Description

La présente invention est relative aux cardes, c'est-à-dire à des machines textiles pour la réalisation d'une nappe de fibres ou pour la réalisation d'un ruban ou mèche de fibres à partir d'une nappe, et elle concerne plus particulièrement un dispositif pour réaliser la séparation du voile de fibres présent sur le cylindre peigneur.The present invention relates to carding machines, that is to say textile machines for producing a sheet of fibers or for making a ribbon or wick of fibers from a sheet, and it relates more particularly a device for carrying out the separation of the veil of fibers present on the painter cylinder.

Jusqu'à présent, pour réaliser la séparation du voile de fibres piésent sur le cylindre peigneur, on avait recours soit à un peigne battant, soit à un détacheur à cylindres.Up to now, in order to separate the veil of fibers present on the combing cylinder, recourse has been had either to a beating comb or to a cylinder detacher.

Le système de séparation à peigne battant fonctionne correctement, mais il présente l'inconvénient de ne pas permettre des vitesses linéaires importantes du voile, la limite supérieure étant de l'ordre de 90 m/mn. Par contre, le système à cylindres détacheurs permet de dépasser cette vitesse limite mais il présente néanmoins les inconvénients suivants: le voile de fibres a tendance à s'enrouler sur l'un au moins de ces cylindres, le voile est mal guidé lors du démarrage de la machine pour parvenir à ces cylindres, et on ne peut pas utiliser le même système de séparation pour toutes les fibres, notamment lorsqu'on est amené à travailler sur des fibres fortement ensimées ou teintes.The beating comb separation system works correctly, but it has the disadvantage of not allowing significant linear speeds of the web, the upper limit being of the order of 90 m / min. On the other hand, the detaching cylinder system makes it possible to exceed this speed limit, but it nevertheless has the following drawbacks: the veil of fibers tends to be wound on at least one of these cylinders, the veil is poorly guided during start-up machine to reach these cylinders, and we can not use the same separation system for all fibers, especially when it is necessary to work on highly sized or dyed fibers.

L'invention a pour but de remédier à ces inconvénients en fournissant un dispositif de séparation qui permet de travailler à grande vitesse, qui peut être utilisé pour toutes les fibres, qui évite l'enroulement ci-dessus et qui permet un bon guidage du voile de fibres.The invention aims to remedy these drawbacks by providing a separation device which allows work at high speed, which can be used for all fibers, which avoids winding above and which allows good guidance of the web. fiber.

A cet effet, le dispositif selon l'invention, qui comporte un peigne battant en aval du cylindre peigneur, est caractérisé par le fait qu'il est constitué par un cylindre denté qui coopère avec le cylindre peigneur pour en détacher le voile, le peigne battant coopérant avec ce cylindre denté au démarrage de la carde pour en séparer le voile, tandis que, à grande vitesse, le voile quitte directement le cylindre denté sans coopérer avec le peigne battant.To this end, the device according to the invention, which includes a comb beating downstream of the painter cylinder, is characterized in that it is constituted by a toothed cylinder which cooperates with the painter cylinder to detach the web, the comb leaf cooperating with this toothed cylinder at the start of the card to separate the web, while, at high speed, the web leaves the toothed cylinder directly without cooperating with the flying comb.

Pour permettre une bonne séparation du voile de fibres, ce cylindre denté tourne dans le même sens que le cylindre peigneur.To allow good separation of the fiber web, this toothed cylinder rotates in the same direction as the painter cylinder.

Avantageusement, la garniture du cylindre denté de séparation est rigide et elle est constituée par des dents triangulaires, notamment isocèles ou équilatérales.Advantageously, the lining of the toothed separation cylinder is rigid and it is constituted by triangular teeth, in particular isosceles or equilateral.

Suivant une autre caractéristique avantageuse de l'invention, applicable au cas où il existe un cylindre calendreur de sortie en aval du cylindre denté, la distance entre les axes du cylindre denté et du cylindre calendreur est comprise entre 100 et 300 mm, avec une valeur préférentielle de 200 mm.According to another advantageous characteristic of the invention, applicable in the case where there is an exit calendar cylinder downstream of the toothed cylinder, the distance between the axes of the toothed cylinder and the calendar cylinder is between 100 and 300 mm, with a value preferential 200 mm.

On comprendra bien l'invention à la lecture du complément de description qui va suivre et en référence au dessin annexé qui fait partie de la description et dans lequel :

  • Fig. 1 est une vue latérale schématique en élévation d'une partie d'une carde équipée du dispositif de séparation selon l'invention,dans le cas où il existe un cylindre calendreur, et
  • Fig. 2 est une vue analogue dans le cas où il n'existe pas de cylindre calendreur.
The invention will be clearly understood on reading the additional description which follows and with reference to the attached drawing which forms part of the description and in which:
  • Fig. 1 is a schematic side view in elevation of a part of a card equipped with the separation device according to the invention, in the case where there is a calendar cylinder, and
  • Fig. 2 is a similar view in the case where there is no calendar cylinder.

Sur les Figures on n'a schématiquement représenté qu'une partie d'une carde qui est équipée d'un dispositif de séparation selon deux modes de réalisation préférés de l'invention.In the Figures, only a part of a card has been shown diagrammatically which is equipped with a separation device according to two preferred embodiments of the invention.

Sur la Fig. 1 la carde comporte, de manière connue, un cylindre peigneur 1 qui reçoit un voile de fibres 2 prélevé sur un organe amont (non représenté). Dans sa partie aval, la carde comporte, également de façon connue, un peigne battant 3,suivi d'au moins un cylindre calendreur 4 de sortie, ce dernier dirigeant le voile 2 vers un tapis collecteur 6. Les cylindres 1 et 4 tournent dans le même sens, par exemple dans le sens anti-horaire,comme montré sur la figure.Par contre, le peigne battant 3 est animé d'un mouvement oscillatoire.In Fig. 1 the card comprises, in known manner, a comb cylinder 1 which receives a veil of fibers 2 taken from an upstream member (not shown). In its downstream part, the card also comprises, in a known manner, a beating comb 3, followed by at least one exit calendar cylinder 4, the latter directing the web 2 towards a collecting belt 6. The cylinders 1 and 4 rotate in the same direction, for example anti-clockwise, as shown in the figure. On the other hand, the beating comb 3 is driven by an oscillatory movement.

Conformément à l'invention, pour réaliser la séparation du voile 2 présent sur le cylindre peigneur 1 d'avec celui-ci, on prévoit un cylindre denté 5 qui tourne dans le même sens que le cylindre peigneur 1 et qui coopère tangentiellement avec celui-ci pour en prélever le voile 2. Le cylindre denté 5, de préférence, est équipé, de façon non représentée, d'une garniture à dents métalliques rigides, la forme des dents étant triangulaire, par exemple isocèle ou équilatérale.According to the invention, in order to separate the web 2 present on the painter cylinder 1 from the latter, a toothed cylinder 5 is provided which rotates in the same direction as the painter cylinder 1 and which cooperates tangentially with it. ci to remove the veil 2. The toothed cylinder 5, preferably, is equipped, not shown, with a fitting with rigid metal teeth, the shape of the teeth being triangular, for example isosceles or equilateral.

En fonctionnement, au démarrage de la carde, les cylindres 1,5 et 4 tournent à faible vitesse et le voile 2, comme représenté en tirets, reste d'abord sur le cylindre denté 5 jusque dans la zone d'action du peigne battant 3 qui assure la séparation du voile 2 d'avec le cylindre denté 5 et envoie le voile sur le cylindre calendreur 4. A mesure que la carde s'accélère, le voile 2 a tendance à quitter directement le cylindre denté 5 pour parvenir au cylindre calendreur 4, de sorte que le peigne battant 3 n'assure plus de fonction,sauf une fonction de sécurité en rabattant le voile 2 si celui-ci quitte sa trajectoire normale.In operation, when the card starts, the cylinders 1,5 and 4 rotate at low speed and the web 2, as shown in dashes, remains first on the toothed cylinder 5 as far as the action zone of the beating comb 3 which separates the veil 2 from the toothed cylinder 5 and sends the veil to the calendar cylinder 4. As the card accelerates, the web 2 tends to leave the toothed cylinder 5 directly to reach the calendar cylinder 4, so that the swing comb 3 no longer performs a function, except a safety function by folding the web 2 if it leaves its normal path.

Dans un tel dispositif, le peigne battant 3 n'intervient donc que pour les faibles vitesses de la carde, pour lesquelles il est particulièrement efficace, alors que, à grande vitesse de la carde, le voile 2 passe directement du cylindre denté 5 au cylindre calendreur 4.In such a device, the beating comb 3 therefore only intervenes for the low speeds of the card, for which it is particularly effective, while, at high speed of the card, the web 2 passes directly from the toothed cylinder 5 to the cylinder calendar 4.

Du fait que la séparation du voile 2 du cylindre peigneur 1 est réalisée par un cylindre, on peut assurer à la carde une grande vitesse de marche, quelles que soient les fibres traitées, on assure un bon guidage du voile et on évite les difficultés d'enroulement ci-dessus mentionnées.Because the separation of the veil 2 from the combing cylinder 1 is carried out by a cylinder, it is possible to assure the carding machine a high walking speed, whatever the fibers treated, it ensures good guiding of the veil and the difficulties of 'winding above mentioned.

Dans la pratique, pour que le cylindre denté 5 coopère correctement avec le voile 2 et avec le peigne battant 3, et pour que le cylindre calendreur 4 coopère correctement avec le voile, les deux cylindres 4 et 5 ont chacun un diamètre qui est supérieur à une valeur limite ; on estime, bien que cela ne soit pas impératif, que chacun de ces deux cylindres doit avoir un diamètre supérieur à environ 60 à 80 mm. Au surplus, les deux cylindres 4 et 5 ne doivent pas être trop proches l'un de l'autre, en raison des risques d'encrassement du cylindre calendreur 4, et par conséquent des risques d'enroulement du voile ou des fibres sur celui-ci. En revanche, ces deux cylindres ne doivent pas être trop éloignés l'un de l'autre, et ce pour un bon contrôle du voile et pour éviter que celui-ci ne soit perturbé sur les bords, avec pour résultat une réduction de la vitesse limite du système.In practice, so that the toothed cylinder 5 cooperates correctly with the web 2 and with the beating comb 3, and so that the calendar cylinder 4 cooperates correctly with the web, the two cylinders 4 and 5 each have a diameter which is greater than a limit value; it is estimated, although it is not imperative, that each of these two cylinders should have a diameter greater than about 60 to 80 mm. In addition, the two cylinders 4 and 5 must not be too close to each other, because of the risks of fouling of the calendar cylinder 4, and consequently of the risks of winding of the veil or fibers on that -this. However, these two cylinders should not be too far apart from each other, for good control of the web and to prevent it from being disturbed on the edges, resulting in a reduction in speed system limit.

En conséquence, suivant une caractéristique avantageuse de l'invention, on estime qu'il est souhaitable, pour des valeurs normales des diamètres de ces deux cylindres 4 et 5, que la distance entre l'axe du cylindre denté 5 et l'axe du cylindre calendreur 4 soit comprise entre 100 et 300 mm, avec une valeur préférentielle à environ 200 mm. Dans une réalisation pratique du dispositif selon l'invention, le cylindre denté 5 a un diamètre d'environ 160 mm, le cylindre calendreur a un diamètre d'environ 120 mm et l'entraxe de ces deux cylindres est de 200 mm.Consequently, according to an advantageous characteristic of the invention, it is considered desirable, for normal values of the diameters of these two cylinders 4 and 5, that the distance between the axis of the toothed cylinder 5 and the axis of the calendar cylinder 4 is between 100 and 300 mm, with a preferred value of around 200 mm. In a practical embodiment of the device according to the invention, the toothed cylinder 5 has a diameter of approximately 160 mm, the calendar cylinder has a diameter of approximately 120 mm and the distance between these two cylinders is 200 mm.

On a représenté sur la Fig. 2 une variante de réalisation et d'application de l'invention, qui ne diffère de la Fig. 1 que par la suppression du cylindre calendreur 4, le voile 2 passant donc directement, à grande vitesse, du cylindre denté 5 à l'organe de convergence. A faible vitesse, comme précédemment, le voile est détaché du cylindre denté 5 par le peigne battant 3, mais pour être cette fois dirigé directement vers l'organe peigneur. Pour le reste, les réalisations des Figs. 1 et 2 sont semblables, de sorte qu'une nouvelle description est inutile.There is shown in FIG. 2 is a variant embodiment and application of the invention, which does not differ from FIG. 1 that by removing the calendar cylinder 4, the web 2 therefore passing directly, at high speed, from the toothed cylinder 5 to the convergence member. At low speed, as before, the veil is detached from the toothed cylinder 5 by the beating comb 3, but this time being directed directly towards the combing member. For the rest, the embodiments of Figs. 1 and 2 are similar, so a new description is unnecessary.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation qui ont été représentés; on pourrait au contraire concevoir diverses variantes sans sortir pour autant de son cadre.Of course, the invention is not limited to the embodiments which have been shown; we could on the contrary design various variants without departing from its framework.

Claims (8)

Dispositif pour la séparation du voile de fibres (2) du cylindre peigneur (1) dans une carde comportant un peigne battant (3) en aval du cylindre peigneur, caractérisé par le fait qu'il est constitué par un cylindre denté (5) coopérant avec le cylindre peigneur (1) pour en détacher le voile (2), le peigne battant coopérant avec ledit cylindre denté au démarrage de la carde pour en séparer le voile, tandis que, à grande vitesse, le voile quitte directement ledit cylindre denté (5) sans coopérer avec le peigne battant.Device for separating the fiber web (2) from the painter cylinder (1) in a card comprising a swinging comb (3) downstream from the painter cylinder, characterized in that it consists of a cooperating toothed cylinder (5) with the combing cylinder (1) to detach the web (2), the beating comb cooperating with said toothed cylinder at the start of the card to separate the web, while, at high speed, the web directly leaves said toothed cylinder ( 5) without cooperating with the beating comb. Dispositif selon la revendication 1, caractérisé par le fait que ledit cylindre denté (5) tourne dans le même sens que le cylindre peigneur (1).Device according to claim 1, characterized in that said toothed cylinder (5) rotates in the same direction as the combing cylinder (1). Dispositif selon l'une des revendications 1 et 2, caractérisé par le fait que ledit cylindre denté (5) porte une garniture à dents triangulaires, notamment isocèles ou équilatérales.Device according to either of Claims 1 and 2, characterized in that the said toothed cylinder (5) carries a lining with triangular teeth, in particular isosceles or equilateral. Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que ledit cylindre denté (5) porte une garniture à dents rigides.Device according to one of claims 1 to 3, characterized in that said toothed cylinder (5) carries a packing with rigid teeth. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que, dans le cas où il existe un cylindre calendreur (4) de sortie, la distance entre les axes du cylindre denté (5) et du cylindre calendreur (4) est comprise entre 100 et 300 mm.Device according to one of claims 1 to 4, characterized in that, in the case where there is an output calendar cylinder (4), the distance between the axes of the toothed cylinder (5) and the calendar cylinder (4) is between 100 and 300 mm. Dispositif selon la revendication 5, caractérisé par le fait que la distance entre les axes du cylindre denté (5) et du cylindre calendreur (4) est de l'ordre de 200 mm.Device according to claim 5, characterized in that the distance between the axes of the toothed cylinder (5) and the calendar cylinder (4) is of the order of 200 mm. Dispositif selon l'une des revendications 5 et 6, caractérisé par le fait que le cylindre denté (5) a un diamètre d'environ 160 mm et le cylindre calendreur (4) a un diamètre d'environ 120 mm.Device according to either of Claims 5 and 6, characterized in that the toothed cylinder (5) has a diameter of approximately 160 mm and the calendar cylinder (4) has a diameter about 120 mm. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le cylindre denté (5) est disposé entre le cylindre peigneur (1) et un organe aval de convergence sur lequel arrive le voile (2), à faible vitesse en venant directement du peigne battant (3) et à grande vitesse en venant directement du cylindre denté (5).Device according to one of claims 1 to 4, characterized in that the toothed cylinder (5) is disposed between the painter cylinder (1) and a downstream convergence member on which the web (2) arrives, at low speed coming from directly from the swinging comb (3) and at high speed coming directly from the toothed cylinder (5).
EP94400813A 1993-04-15 1994-04-14 Apparatus for separating the fibre web from the doffer cylinder in a carding machine Expired - Lifetime EP0620297B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9304445A FR2704003B1 (en) 1993-04-15 1993-04-15 Device for separating the veil of fibers from the painter cylinder in a card.
FR9304445 1993-04-15
FR9400479 1994-01-18
FR9400479A FR2704004B1 (en) 1993-04-15 1994-01-18 DEVICE FOR SEPARATING THE VEIL OF FIBERS FROM THE PAIRING CYLINDER IN A CARD.

Publications (2)

Publication Number Publication Date
EP0620297A1 true EP0620297A1 (en) 1994-10-19
EP0620297B1 EP0620297B1 (en) 1997-07-23

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EP94400813A Expired - Lifetime EP0620297B1 (en) 1993-04-15 1994-04-14 Apparatus for separating the fibre web from the doffer cylinder in a carding machine

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US (1) US5432981A (en)
EP (1) EP0620297B1 (en)
JP (1) JP2704937B2 (en)
AT (1) ATE155830T1 (en)
DE (1) DE69404362T2 (en)
ES (1) ES2105548T3 (en)
FR (1) FR2704004B1 (en)

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GB1120222A (en) * 1964-06-22 1968-07-17 Carding Spec Canada Improvements in or relating to textile carding machines
FR1578639A (en) * 1968-04-19 1969-08-14
GB1294654A (en) * 1968-08-16 1972-11-01 Gordon Roberts An improvement in or relating to the separation of the fibres of fibrous materials according to length

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962561A1 (en) * 1998-06-05 1999-12-08 FONDERIE OFFICINE RIUNITE F.O.R. ING. GRAZIANO DI L. GRAZIANO & C. S.a.s. A carding machine with a doffer roller

Also Published As

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FR2704004A1 (en) 1994-10-21
JPH0748723A (en) 1995-02-21
ES2105548T3 (en) 1997-10-16
DE69404362D1 (en) 1997-09-04
JP2704937B2 (en) 1998-01-26
US5432981A (en) 1995-07-18
FR2704004B1 (en) 1996-06-07
ATE155830T1 (en) 1997-08-15
DE69404362T2 (en) 1998-01-29
EP0620297B1 (en) 1997-07-23

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