EP0349041B1 - Process and device for indexing fabric work pieces, especially a rear and a front part of an article such as briefs - Google Patents

Process and device for indexing fabric work pieces, especially a rear and a front part of an article such as briefs Download PDF

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Publication number
EP0349041B1
EP0349041B1 EP89201592A EP89201592A EP0349041B1 EP 0349041 B1 EP0349041 B1 EP 0349041B1 EP 89201592 A EP89201592 A EP 89201592A EP 89201592 A EP89201592 A EP 89201592A EP 0349041 B1 EP0349041 B1 EP 0349041B1
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EP
European Patent Office
Prior art keywords
plate
depositing
gripping assembly
layers
designed
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EP89201592A
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German (de)
French (fr)
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EP0349041A1 (en
Inventor
Patrick Rouleau
Alain Rouleau
Jean-Pierre Touret
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H43/00—Other methods, machines or appliances
    • A41H43/02—Handling garment parts or blanks, e.g. feeding, piling, separating or reversing

Definitions

  • the invention relates to a method for superimposing at least two flexible layers, in particular a back panel and a front panel of an article such as underpants in the textile and hosiery industry.
  • the invention extends to a device suitable for superimposing at least two flexible layers implementing this method.
  • the first workstation consists of making the edge seams of the two layers of fabric, front and back.
  • the second station consists in sewing the gusset by its median axis on the front panel.
  • the third position is finally to deploy the gusset on the front panel, on either side of the middle seam, and to fix it by two points in order to maintain it in this position for the following operations.
  • the gusset is first pre-assembled with the front panel and then this front panel / gusset assembly is paired with the back panel at a workstation described in the GB-A patent. -2,194,725.
  • the main objective of the present invention is to replace all of these preparation stations with one-pass manufacturing on a single work station.
  • this method makes it possible to grasp and superimpose on the depositing member. , one layer of each stack.
  • the layers are deposited astride a depositing member consisting of a vertical plate provided with a horizontal upper depositing edge.
  • these layers are advantageously deposited, firstly, on two depositing bars arranged on either side of the depositing plate, parallel to the upper edge of the latter and moving between a substantially raised position with respect to said layer. upper edge and a low retracted position.
  • each layer is therefore carried out beforehand on the two deposition bars so that this layer does not displace the lower layer or layers of the superposition, when it is brought above the deposition plate. These deposit bars then retract to allow the layer concerned to fall astride the deposit plate.
  • the transported layers are braked by suction in the vicinity and upstream of the depositing member so as to eliminate any risk of undulation of these layers.
  • the stacks of gussets and fronts are also advantageously placed on the tray with a centrifugal offset from the back stack so that the grip assembly grips each front and each gusset along a line near a longitudinal end thereof and each back along an intermediate line.
  • each front and each gusset is extended astride the depositing plate, without longitudinal folding. On the contrary, each back is found folded longitudinally on the removal plate.
  • the depositing member is advantageously subjected to a translational movement moving it apart or bringing it closer to the plate in order to adjust the position of said depositing member and to obtain a superposition of the layers with one of their longitudinal edge aligned.
  • the three layers are thus superimposed in an appropriate position to allow the operator to perform on the same sewing machine, first the axial stitching of the gusset, then the two side seams. During these operations, folding the back prevents it from being sewn when the axial stitching of the gusset is made.
  • the machine shown in Figures 1 to 4 is intended to superimpose three flexible layers such as a front panel, a back panel and a slip pocket.
  • This machine comprises, firstly, a horizontal circular plate 1 resting at its lower face on three wheels 2 driven in rotation by means of a drive motor 3, and arranged on a support frame 4.
  • This plate 1 comprises holding and positioning bodies for respective back, front and gusset stacks. These members, distributed on the plate 1 so as to delimit between them angles of 120 degrees, are constituted by bars 5 adjacent to the center of the plate and guided vertically to ensure by their weight the pinching of a longitudinal edge of the layers, in the example of the bottom of each of these layers.
  • At least one of these holding bars 5 is associated with means for adjusting its position adapted to radially adjust this position on the plate 1.
  • These adjusting means comprise a strip 6 disposed radially on the plate 1 and bearing towards one of its ends a strip 5, said strip comprising a longitudinal slot making it possible to adjust its position by means of a pressure screw 7 housed in this slot and passing through a lumen formed in the plate 1.
  • the retaining bars 5 intended to ensure the maintenance and positioning of the stacks of gussets and fronts are, moreover, arranged with a centrifugal offset relative to the retaining bar back stacks.
  • the rotation drive means 2, 3 of the plate 1 are adapted to rotate it third of a turn by third of a turn so as to bring each stack successively in line with a gripping assembly adapted to grip a layer of a stack.
  • the plate 1 is also subjected after each third of a turn to an upward movement which rises the stacks towards the gripping assembly and allows the latter to grasp the upper layer thereof.
  • the machine comprises a pneumatic cylinder 8 arranged vertically and provided with a rod carrying towards its end a horizontal support plate 9. From a retracted position where the support plate 9 is located at a distance under the plate 1, this jack 8 is adapted to deploy so that this support plate 9 comes into contact with the underside of the plate 1, causing the latter to rise.
  • the upper face of the support plate 9 and the lower face of the plate 1 are provided with interlocking structures of conjugate shapes, adapted to ensure precise rotations of the plate.
  • These nesting structures consist of three female footprints conical 10 formed in the underside of the plate 1, into which are introduced, at each deployment of the cylinder 8, conical studs 11 disposed on the upper face of the support plate 9, which guarantee at the end of each rotation a precise positioning of the plate 1.
  • the gripping assembly is in turn composed of a frame 12, carried by the movable member 13a of a pneumatic cylinder without rod 13 arranged horizontally, and on which are mounted four gripping heads 14 aligned, as described in FR patent n ° 84.04804, FR certificate of addition n ° 86.02951 or request for FR certificate of addition n ° 88.06752.
  • This gripping assembly is subjected to a horizontal translational movement bringing it above the plate 1 directly above a stack or above a vertical plate 15 provided with a horizontal upper edge for depositing disposed substantially in the same horizontal plane as the plate 1, in the upper gripping position of the latter.
  • This depositing plate 15 is carried by vertical feet 16 slidingly mounted along two horizontal guide bars 17 so as to allow this plate 15 to be displaced in a translational movement moving it apart or approaching it from the plate 1.
  • This movement of translation is generated by a pneumatic cylinder 18 arranged horizontally and whose rod is secured to the vertical feet 16 carrying the plate 15.
  • the depositing bars 19 are carried by two handles 20 secured to the movable member 21a of a rodless cylinder 21 arranged vertically. These two handles 20 are, moreover, arranged on either side of a vertical guide plate 22 on the longitudinal edges of which they bear by means of a roller 23.
  • the bars 19 deviate from one another so as to deposit the layer astride the upper edge of the plate 15 and to retract on the side and on the other side of this brochure.
  • suction means consisting of two nozzles 24 arranged on either side of said wafer.
  • the purpose of these nozzles 24 is to brake the fabric of the layers passing at their level so as to eliminate any risk of the appearance of corrugation and to eliminate angular offsets or other defects in positioning of the layers relative to the depositing plate 15.
  • blowing nozzles 25 disposed above the plate 15 prevent undulations or folds from appearing at the points of the gussets or fronts when the latter are placed astride this plate.
  • the gripping assembly 12, 14 is positioned above the plate 1, directly above the back stack (FIG. 5a).
  • the removal plate 15 is in its advanced position vis-à-vis the plate 1, corresponding to a deployed state of the jack 18.
  • the jack 8 is then deployed so as to bring the upper layer of the back stack in contact with the grippers 14 and ensure the setting of this layer as described in patent FR n ° 84.04804, the certificate of addition FR n ° 86.02951 or the request for certificate of addition FR n ° 88.06752 ( Figure 5b). Due to the centrifugal offset of this back stack, the layer is also gripped at an intermediate line.
  • the gripping assembly 12, 14 is then subjected to a translational movement bringing it above the depositing plate 15, while the depositing bars 19 are brought to their slightly raised position relative to the upper edge of this plate ( Figure 5c).
  • the grippers 14 are then actuated as described in patent FR n ° 84.04804, the certificate of addition FR n ° 86.02951 or the request for certificate of addition FR n ° 88.06752, and the back panel is placed astride the removal bars 19, being folded longitudinally on itself (Figure 5d). This panel is then deposited on the depositing plate 15, after retraction of the depositing bars 19, while the gripping assembly 12, 14 is brought back towards the plate 1 (FIG. 5e).
  • the turntable 1 then undergoes a rotation of a third of a turn, the jack 8 being retracted, intended to bring the front stack vertically in line with the gripping assembly 12, 14 and the jack 8 deployed so as to bringing the upper layer of this stack in contact with the grippers 14. Unlike the back panel, and due to the centrifugal offset of this front stack, the layer is then gripped along a line close to its bottom.
  • the depositing plate 15 is brought into its retracted position with respect to the plate 1, corresponding to a retracted state of the jack 18 (FIGS. 5f and 5g).
  • the gripping assembly 12, 14 is then again brought above the depositing plate 15, while the depositing bars 19 undergo an upward movement (FIG. 5h), and the front panel is removed, extended on horseback on these deposit bars 19, without longitudinal folding (FIG. 5i).
  • the front panel After retraction of the deposit bars 19, the front panel is therefore extended on the deposit plate 15 without longitudinal folding (FIG. 5j).
  • this plate 15 being further from the plate 1 than when removing the back panel, the front edge of this back panel and that of the front panel are perfectly aligned.
  • the gripping assembly 12, 14 comes to grab a gusset panel and place it on the removal plate 15 (Figure 5k).
  • the three layers are then superimposed on each other in an appropriate position to allow their immediate sewing.
  • the operator can thus grasp the three layers and carry out on the same sewing machine first the clamp seam (axial stitching of the gusset), then the two side seams. The folding of the back prevents it from being sewn when the gusset seam is made.
  • the time required to carry out these automated preparation operations is divided by a coefficient of around 2.4 compared to that required to carry out the three traditional preparation operations mentioned in the preamble.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Laminated Bodies (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Pile Receivers (AREA)

Abstract

The invention relates to a process and an apparatus for superimposing at least two flexible sheets, in particular a back panel and a front panel of an article such as a slip. The process comprises forming a stack of each type of sheets and arranging said stacks on a plate (1), then for each of these stacks: gripping at least one sheet by means of a gripping assembly (12, 14) arranged above the plate (1) and relatively displacing said plate and said gripping assembly between a rest position and a sheet gripping position, displacing the gripping assembly (12, 14) so as to bring it above a deposit member (15) and actuating the assembly so as to release the sheet and spread it on the deposit member, returning the gripping assembly (12, 14) above the plate (1) and causing the plate to rotate a portion of a revolution to position a second stack directly below the gripping assembly.

Description

L'invention concerne un procédé pour superposer au moins deux couches souples, notamment un panneau de dos et un panneau de devant d'un article tel qu'un slip dans l'industrie textile et de la bonneterie. L'invention s'étend à un dispositif adapté pour superposer au moins deux couches souples mettant en oeuvre ce procédé.The invention relates to a method for superimposing at least two flexible layers, in particular a back panel and a front panel of an article such as underpants in the textile and hosiery industry. The invention extends to a device suitable for superimposing at least two flexible layers implementing this method.

A l'heure actuelle, la fabrication traditionnelle des slips nécessite trois postes de travail préliminaire pour la préparation de ces slips. Le premier poste de travail consiste à réaliser les coutures de bord des deux couches de tissu, devant et dos. Le deuxième poste consiste à coudre le gousset par son axe médian sur le panneau de devant. Le troisième poste consiste enfin à déployer le gousset sur le panneau de devant, de part et d'autre de la couture médiane, et à le fixer par deux points afin de le maintenir dans cette position pour les opérations suivantes.Currently, the traditional manufacture of briefs requires three preliminary workstations for the preparation of these briefs. The first workstation consists of making the edge seams of the two layers of fabric, front and back. The second station consists in sewing the gusset by its median axis on the front panel. The third position is finally to deploy the gusset on the front panel, on either side of the middle seam, and to fix it by two points in order to maintain it in this position for the following operations.

Selon une autre technique, le gousset est dans un premier temps pré-assemblé avec le panneau de devant puis cet ensemble panneau de devant/gousset est appairé avec le panneau de dos au niveau d'un poste de travail décrit dans le brevet GB-A-2.194.725.According to another technique, the gusset is first pre-assembled with the front panel and then this front panel / gusset assembly is paired with the back panel at a workstation described in the GB-A patent. -2,194,725.

Toutefois, cette technique nécessite au minimum deux postes de travail, dont celui décrit dans le brevet GB-A-2.194.725, voire trois postes de travail si le gousset est assemblé sur le panneau de devant selon le procédé utilisé lors de la fabrication traditionnelle.However, this technique requires at least two workstations, including the one described in patent GB-A-2,194,725, or even three workstations if the gusset plate is assembled on the front panel according to the process used during traditional manufacturing. .

La présente invention a pour objectif essentiel de substituer à l'ensemble de ces postes de préparation une fabrication en une seule passe sur un poste de travail unique.The main objective of the present invention is to replace all of these preparation stations with one-pass manufacturing on a single work station.

A cet effet, l'invention vise un procédé pour superposer au moins deux couches souples, notamment un panneau de dos et un panneau de devant d'un article tel qu'un slip dans l'industrie textile et de la bonnetterie, caractérisé en ce qu'il consiste à former un empilage de chaque type de couches et à répartir lesdits empilages sur un plateau, puis pour chacun de ces empilages :

  • à saisir au moins une couche d'un empilage au moyen'd'un ensemble de préhension disposé au-dessus du plateau, en déplaçant relativement lesdits plateau et ensemble de préhension entre une position, dite de repos, où ils sont éloignés d'une distance prédéterminée et une position de préhension des couches,
  • à faire subir à l'ensemble de préhension un mouvement de translation de façon à l'amener au-dessus d'un organe de dépose et à actionner ledit ensemble de façon à relâcher la couche et à l'étendre sur ledit organe de dépose,
  • à ramener l'ensemble de préhension au-dessus du plateau et à faire tourner ledit plateau d'une portion de tour adaptée pour positionner un deuxième empilage à l'aplomb de l'ensemble de préhension.
To this end, the invention relates to a method for superimposing at least two flexible layers, in particular a back panel and a front panel of an article such as briefs in the textile and hosiery industry, characterized in what it consists of forming a stack of each type of layers and of distributing said stacks on a tray, then for each of these stacks:
  • to grasp at least one layer of a stack by means of a gripping assembly disposed above the tray, by relatively moving said tray and gripping assembly between a position, called a rest position, where they are distant from a predetermined distance and a gripping position of the layers,
  • subjecting the gripping assembly to a translational movement so as to bring it above a deposition member and to actuate said assembly so as to release the layer and to extend it over said deposition member,
  • to bring the gripping assembly above the tray and to rotate said tray by a portion of a tower adapted to position a second stack directly above the gripping assembly.

Ainsi, lors de chaque cycle de fonctionnement, correspondant à un nombre de va-et-vient de l'ensemble de préhension équivalent au nombre d'empilages répartis sur le plateau, ce procédé permet de saisir et de superposer sur l'organe de dépose, une couche de chaque empilage.Thus, during each operating cycle, corresponding to a number of back-and-forth movements of the gripping assembly equivalent to the number of stacks distributed over the tray, this method makes it possible to grasp and superimpose on the depositing member. , one layer of each stack.

Préférentiellement, les couches sont déposées à cheval sur un organe de dépose constitué d'une plaquette verticale dotée d'un chant supérieur horizontal de dépose.Preferably, the layers are deposited astride a depositing member consisting of a vertical plate provided with a horizontal upper depositing edge.

En outre, ces couches sont avantageusement déposées, dans un premier temps, sur deux barres de dépose disposées de part et d'autre de la plaquette de dépose, parallèlement au chant supérieur de cette dernière et se déplaçant entre une position sensiblement surélevée par rapport audit chant supérieur et une position basse escamotée.In addition, these layers are advantageously deposited, firstly, on two depositing bars arranged on either side of the depositing plate, parallel to the upper edge of the latter and moving between a substantially raised position with respect to said layer. upper edge and a low retracted position.

La dépose de chaque couche s'effectue donc, préalablement, sur les deux barres de dépose de façon que cette couche ne déplace pas la ou les couches inférieures de la superposition, lorsqu'elle est amenée au-dessus de la plaquette de dépose. Ces barres de dépose s'escamotent ensuite pour laisser la couche concernée retomber à cheval sur la plaquette de dépose.The deposition of each layer is therefore carried out beforehand on the two deposition bars so that this layer does not displace the lower layer or layers of the superposition, when it is brought above the deposition plate. These deposit bars then retract to allow the layer concerned to fall astride the deposit plate.

Par ailleurs, selon un mode de mise en oeuvre préférentiel, les couches transportées sont freinées par aspiration au voisinage et en amont de l'organe de dépose de façon à supprimer tout risque d'ondulation de ces couches.Furthermore, according to a preferred embodiment, the transported layers are braked by suction in the vicinity and upstream of the depositing member so as to eliminate any risk of undulation of these layers.

Dans le cas où ce procédé est mis en oeuvre pour superposer un panneau de dos, un panneau de devant et un gousset d'un slip, l'on dispose en outre, avantageusement, les empilages de goussets et de devants sur le plateau avec un décalage centrifuge par rapport à l'empilage de dos de façon que l'ensemble de préhension saisisse chaque devant et chaque gousset le long d'une ligne proche d'une extrémité longitudinale de ces derniers et chaque dos le long d'une ligne intermédiaire.In the case where this method is implemented for superimposing a back panel, a front panel and a gusset of briefs, the stacks of gussets and fronts are also advantageously placed on the tray with a centrifugal offset from the back stack so that the grip assembly grips each front and each gusset along a line near a longitudinal end thereof and each back along an intermediate line.

Ainsi chaque devant et chaque gousset est étendu à cheval sur la plaquette de dépose, sans repli longitudinal. Au contraire, chaque dos se retrouve replié longitudinalement sur la plaquette de dépose.Thus each front and each gusset is extended astride the depositing plate, without longitudinal folding. On the contrary, each back is found folded longitudinally on the removal plate.

Par ailleurs, l'on fait avantageusement subir à l'organe de dépose un mouvement de translation l'écartant ou le rapprochant du plateau en vue d'ajuster la position dudit organe de dépose et d'obtenir une superposition des couches avec un de leur bord longitudinal aligné.Furthermore, the depositing member is advantageously subjected to a translational movement moving it apart or bringing it closer to the plate in order to adjust the position of said depositing member and to obtain a superposition of the layers with one of their longitudinal edge aligned.

Les trois couches se trouvent ainsi superposées en position appropriée pour permettre à l'opératrice de réaliser sur la même machine à coudre, d'abord la couture axiale du gousset, ensuite les deux coutures de côté. Lors de ces opérations, le repliage du dos évite que celui-ci soit cousu lorsque la couture axiale du gousset est réalisée.The three layers are thus superimposed in an appropriate position to allow the operator to perform on the same sewing machine, first the axial stitching of the gusset, then the two side seams. During these operations, folding the back prevents it from being sewn when the axial stitching of the gusset is made.

L'invention s'étend à un dispositif pour superposer au moins deux couches souples, notamment un panneau de devant et un panneau de dos d'un article tel qu'un slip dans l'industrie textile et de la bonnetterie, caractérisé en ce qu'il comprend :

  • un plateau doté de moyens de maintien et de positionnement d'au moins deux empilages de couches répartis sur ledit plateau,
  • un organe de dépose des couches, disposé à distance du plateau, et constitué d'une plaquette verticale dotée d'un chant supérieur horizontal de dépose.
  • un ensemble de préhension associé à des moyens d'actionnement et adapté pour saisir au moins une couche d'un empilage, et la relâcher sur commande,
  • des moyens de déplacement en translation dudit ensemble de préhension adaptés pour le déplacer entre une position, dite de repos, où il est disposé au-dessus du plateau et une position, dite de dépose, où il est disposé à l'aplomb de l'organe de dépose,
  • des moyens de déplacement relatif du plateau et de l'ensemble de préhension adaptés pour les déplacer entre une position correspondant à la position de repos de l'ensemble de préhension et une position de préhension des couches,
  • des moyens d'entraînement en rotation du plateau adaptés pour positionner successivement les empilages de couches à l'aplomb de l'ensemble de préhension disposé dans sa position de repos.
The invention extends to a device for superimposing at least two flexible layers, in particular a front panel and a back panel of an article such as underpants in the textile and hosiery industry, characterized in that 'He understands :
  • a tray provided with means for holding and positioning at least two stacks of layers distributed over said tray,
  • a layer deposition member, placed at a distance from the plate, and consisting of a vertical plate with a horizontal upper removal edge.
  • a gripping assembly associated with actuating means and suitable for gripping at least one layer of a stack, and releasing it on command,
  • means of translational movement of said gripping assembly adapted to move it between a position, called rest, where it is arranged above the plate and a position, called removal, where it is arranged directly above the depositing device,
  • means for relative displacement of the plate and of the gripping assembly suitable for move between a position corresponding to the rest position of the grip assembly and a grip position of the layers,
  • means for driving the plate in rotation adapted to successively position the layers of layers directly above the gripping assembly disposed in its rest position.

D'autres caractéristiques, buts et avantages de l'invention se dégageront de la description détaillée qui suit en référence aux dessins annexés qui en représentent, à titre d'exemple non limitatif, un mode de réalisation préférentiel. Sur ces dessins qui font partie intégrante de la présente description :

  • la figure 1 est une vue en perspective, avec une partie du capotage arrachée, d'un dispositif conforme à l'invention,
  • la figure 2 en est une coupe longitudinale par un plan vertical A-A,
  • la figure 3 en est une coupe transversale par un plan vertical B-B,
  • la figure 4 en est une coupe longitudinale par un plan vertical C-C,
  • les figures 5a à 5k sont des schémas illustrant le déroulement d'un cycle de fonctionnement de ce dispositif.
Other characteristics, objects and advantages of the invention will emerge from the detailed description which follows with reference to the appended drawings which represent, by way of nonlimiting example, a preferred embodiment. On these drawings which form an integral part of this description:
  • FIG. 1 is a perspective view, with part of the cowling cut away, of a device according to the invention,
  • FIG. 2 is a longitudinal section through a vertical plane AA,
  • FIG. 3 is a cross section thereof through a vertical plane BB,
  • FIG. 4 is a longitudinal section through a vertical plane CC,
  • Figures 5a to 5k are diagrams illustrating the progress of an operating cycle of this device.

La machine représentée aux figures 1 à 4 est destinée à superposer trois couches souples telles qu'un panneau de devant, un panneau de dos et un gousset de slip.The machine shown in Figures 1 to 4 is intended to superimpose three flexible layers such as a front panel, a back panel and a slip pocket.

Cette machine comprend, en premier lieu, un plateau circulaire horizontal 1 reposant au niveau de sa face inférieure sur trois roues 2 entraînées en rotation au moyen d'un moteur d'entraînement 3, et agencées sur un châssis-support 4.This machine comprises, firstly, a horizontal circular plate 1 resting at its lower face on three wheels 2 driven in rotation by means of a drive motor 3, and arranged on a support frame 4.

Ce plateau 1 comporte des organes de maintien et de positionnement empilages respectifs de dos, de devants et de goussets. Ces organes, répartis sur le plateau 1 de façon à délimiter entre eux des angles de 120 degrés, sont constitués par des barrettes 5 voisines du centre du plateau et guidées verticalement pour assurer par leur poids le pincement d'un bord longitudinal des couches, en l'exemple du fond de chacune de ces couches.This plate 1 comprises holding and positioning bodies for respective back, front and gusset stacks. These members, distributed on the plate 1 so as to delimit between them angles of 120 degrees, are constituted by bars 5 adjacent to the center of the plate and guided vertically to ensure by their weight the pinching of a longitudinal edge of the layers, in the example of the bottom of each of these layers.

En outre, au moins une de ces barrettes de maintien 5 est associée à des moyens de réglage de sa position adaptés pour ajuster radialement cette position sur le plateau 1. Ces moyens de réglage comportent une réglette 6 disposée radialement sur le plateau 1 et portant vers une de ses extrémités une barrette 5, ladite réglette comportant une fente longitudinale permettant d'ajuster sa position au moyen d'une vis-pression 7 logée dans cette fente et traversant une lumière ménagée dans le plateau 1.In addition, at least one of these holding bars 5 is associated with means for adjusting its position adapted to radially adjust this position on the plate 1. These adjusting means comprise a strip 6 disposed radially on the plate 1 and bearing towards one of its ends a strip 5, said strip comprising a longitudinal slot making it possible to adjust its position by means of a pressure screw 7 housed in this slot and passing through a lumen formed in the plate 1.

Dans un but que l'on comprendra mieux ci-après, les barrettes de maintien 5 destinées à assurer le maintien et le positionnement des empilages de goussets et de devants sont, par ailleurs, disposées avec un décalage centrifuge par rapport à la barrette de maintien des empilages de dos.For a purpose that will be better understood below, the retaining bars 5 intended to ensure the maintenance and positioning of the stacks of gussets and fronts are, moreover, arranged with a centrifugal offset relative to the retaining bar back stacks.

En outre, les moyens d'entraînement en rotation 2, 3 du plateau 1 sont adaptés pour le faire tourner tiers de tour par tiers de tour de façon à amener successivement chaque empilage à l'aplomb d'un ensemble de préhension adapté pour saisir une couche d'un empilage.In addition, the rotation drive means 2, 3 of the plate 1 are adapted to rotate it third of a turn by third of a turn so as to bring each stack successively in line with a gripping assembly adapted to grip a layer of a stack.

Le plateau 1 est soumis également après chaque tiers de tour à un mouvement ascendant qui monte les empilages vers l'ensemble de préhension et permet à ce dernier de saisir la couche supérieure de ceux-ci.The plate 1 is also subjected after each third of a turn to an upward movement which rises the stacks towards the gripping assembly and allows the latter to grasp the upper layer thereof.

A cet effet, la machine comprend un vérin pneumatique 8 agencé verticalement et doté d'une tige portant vers son extrémité une plaque-support horizontale 9. A partir d'une position rétractée où la plaque-support 9 est située à distance sous le plateau 1, ce vérin 8 est adapté pour se déployer de façon que cette plaque-support 9 vienne en contact avec la face inférieure du plateau 1, entraînant l'ascension de ce dernier.For this purpose, the machine comprises a pneumatic cylinder 8 arranged vertically and provided with a rod carrying towards its end a horizontal support plate 9. From a retracted position where the support plate 9 is located at a distance under the plate 1, this jack 8 is adapted to deploy so that this support plate 9 comes into contact with the underside of the plate 1, causing the latter to rise.

En outre, la face supérieure de la plaque-support 9 et la face inférieure du plateau 1 sont dotées de structures d'emboîtement de formes conjuguées, adaptées pour assurer des rotations précises du plateau. Ces structures d'emboîtement sont constituées de trois empreintes femelles coniques 10 ménagées dans la face inférieure du plateau 1, dans lesquelles viennent s'introduire, à chaque déploiement du vérin 8, des plots coniques 11 disposés sur la face supérieure de la plaque-support 9, qui garantissent à la fin de chaque rotation un positionnement précis du plateau 1.In addition, the upper face of the support plate 9 and the lower face of the plate 1 are provided with interlocking structures of conjugate shapes, adapted to ensure precise rotations of the plate. These nesting structures consist of three female footprints conical 10 formed in the underside of the plate 1, into which are introduced, at each deployment of the cylinder 8, conical studs 11 disposed on the upper face of the support plate 9, which guarantee at the end of each rotation a precise positioning of the plate 1.

L'ensemble de préhension est quant à lui composé d'un bâti 12, porté par l'organe mobile 13a d'un vérin pneumatique sans tige 13 agencé horizontalement, et sur lequel sont montées quatre têtes de préhension 14 alignées, telles que décrites dans le brevet FR n° 84.04804, le certificat d'addition FR n° 86.02951 ou la demande de certificat d'addition FR n° 88.06752.The gripping assembly is in turn composed of a frame 12, carried by the movable member 13a of a pneumatic cylinder without rod 13 arranged horizontally, and on which are mounted four gripping heads 14 aligned, as described in FR patent n ° 84.04804, FR certificate of addition n ° 86.02951 or request for FR certificate of addition n ° 88.06752.

Cet ensemble de préhension est soumis à un mouvement de translation horizontale l'amenant au-dessus du plateau 1 à l'aplomb d'un empilage ou au-dessus d'une plaquette verticale 15 dotée d'un chant supérieur horizontal de dépose disposé sensiblement dans un même plan horizontal que le plateau 1, dans la position haute de préhension de ce dernier.This gripping assembly is subjected to a horizontal translational movement bringing it above the plate 1 directly above a stack or above a vertical plate 15 provided with a horizontal upper edge for depositing disposed substantially in the same horizontal plane as the plate 1, in the upper gripping position of the latter.

Cette plaquette de dépose 15 est portée par des pieds verticaux 16 montés coulissants le long de deux barres de guidage horizontales 17 de façon à permettre de déplacer cette plaquette 15 selon un mouvement de translation l'écartant ou l'approchant du plateau 1. Ce mouvement de translation est engendré par un vérin pneumatique 18 agencé horizontalement et dont la tige est solidarisée aux pieds verticaux 16 portant la plaquette 15.This depositing plate 15 is carried by vertical feet 16 slidingly mounted along two horizontal guide bars 17 so as to allow this plate 15 to be displaced in a translational movement moving it apart or approaching it from the plate 1. This movement of translation is generated by a pneumatic cylinder 18 arranged horizontally and whose rod is secured to the vertical feet 16 carrying the plate 15.

Par ailleurs, de part et d'autre de la plaquette 15 et parallèlement au chant supérieur de celle-ci, sont prévues deux barres de dépose 19 soumises à un mouvement de va-et-vient vertical entre une position légèrement surélevée par rapport au chant de la plaquette 15 et une position basse escamotée. Le dépose de chaque couche s'effectue ainsi sur les barres de dépose 19 de façon que la couche supérieure de la superposition ne déplace pas celle ou celles du dessous, lorsqu'elle est amenée au-dessus de la plaquette de dépose 15. Les barres de dépose 19 s'escamotent ensuite après chaque dépose pour laisser la couche concernée retomber sur la plaquette de dépose 15.Furthermore, on either side of the plate 15 and parallel to the upper edge thereof, there are two depositing bars 19 subjected to a vertical reciprocating movement between a position slightly raised relative to the edge of the plate 15 and a low retracted position. The deposition of each layer is thus carried out on the deposition bars 19 so that the upper layer of the superposition does not move the one or those below, when it is brought above the deposition plate 15. The bars removal 19 then retract after each removal to let the layer concerned fall on the removal plate 15.

Afin d'obtenir ce mouvement de va-et-vient, les barres de dépose 19 sont portées par deux poignées 20 solidarisées à l'organe mobile 21a d'un vérin sans tige 21 agencé verticalement. Ces deux poignées 20 sont, en outre, disposées de part et d'autre d'une plaque verticale de guidage 22 sur les chants longitudinaux de laquelle elles prennent appui par l'intermédiaire d'une roulette 23. Cette plaque de guidage 22, dotée d'un tronçon supérieur de largeur inférieure au tronçon inférieur, permet lors du mouvement ascendant du vérin 21, de faire subir un mouvement de rapprochement aux barres 19 de façon que ces dernières se trouvent sensiblement côte à côte au-dessus du chant supérieur de la plaquette 15. Par contre, lors du mouvement descendant du vérin 21, les barres 19 s'écartent l'une de l'autre de façon à déposer la couche à cheval sur le chant supérieur de la plaquette 15 et à s'escamoter de part et d'autre de cette plaquette.In order to obtain this reciprocating movement, the depositing bars 19 are carried by two handles 20 secured to the movable member 21a of a rodless cylinder 21 arranged vertically. These two handles 20 are, moreover, arranged on either side of a vertical guide plate 22 on the longitudinal edges of which they bear by means of a roller 23. This guide plate 22, provided an upper section of width less than the lower section, allows during the upward movement of the jack 21, to undergo a movement of approach to the bars 19 so that the latter are located substantially side by side above the upper edge of the plate 15. On the other hand, during the downward movement of the jack 21, the bars 19 deviate from one another so as to deposit the layer astride the upper edge of the plate 15 and to retract on the side and on the other side of this brochure.

Par ailleurs, fixés à l'avant de la plaquette 15, du côté du plateau tournant 1, se trouvent des moyens d'aspiration constitués de deux buses 24 disposées de part et d'autre de ladite plaquette. Ces buses 24 ont pour but de freiner le tissu des couches passant à leur niveau de façon à supprimer tout risque d'apparition d'ondulation et à éliminer les décalages angulaires ou autres défauts de positionnement des couches par rapport à la plaquette de dépose 15.Furthermore, attached to the front of the wafer 15, on the side of the turntable 1, are suction means consisting of two nozzles 24 arranged on either side of said wafer. The purpose of these nozzles 24 is to brake the fabric of the layers passing at their level so as to eliminate any risk of the appearance of corrugation and to eliminate angular offsets or other defects in positioning of the layers relative to the depositing plate 15.

En dernier lieu, deux buses de soufflage 25 disposées au-dessus de la plaquette 15 évitent que des ondulations ou des plis apparaissent au niveau des pointes de goussets ou de devants lorsque ces derniers sont posés à califourchon sur cette plaquette.Finally, two blowing nozzles 25 disposed above the plate 15 prevent undulations or folds from appearing at the points of the gussets or fronts when the latter are placed astride this plate.

Le fonctionnement de cette machine est décrit ci-après en référence aux figures 5a à 5k.The operation of this machine is described below with reference to Figures 5a to 5k.

En début de cycle, l'ensemble de préhension 12, 14 se trouve positionné au-dessus du plateau 1, à l'aplomb de l'empilage de dos (figure 5a). La plaquette de dépose 15 se trouve quant à elle en positon avancée vis-à-vis du plateau 1, correspondant à un état déployé du vérin 18.At the start of the cycle, the gripping assembly 12, 14 is positioned above the plate 1, directly above the back stack (FIG. 5a). The removal plate 15 is in its advanced position vis-à-vis the plate 1, corresponding to a deployed state of the jack 18.

Le vérin 8 est alors déployé de façon à amener la couche supérieure de l'empilage de dos au contact des préhenseurs 14 et assurer la prise de cette couche de la façon décrite dans le brevet FR n°84.04804, le certificat d'addition FR n° 86.02951 ou la demande de certificat d'addition FR n° 88.06752 (figure 5b). En raison du décalage centrifuge de cet empilage de dos, la couche est en outre saisie au niveau d'une ligne intermédiaire.The jack 8 is then deployed so as to bring the upper layer of the back stack in contact with the grippers 14 and ensure the setting of this layer as described in patent FR n ° 84.04804, the certificate of addition FR n ° 86.02951 or the request for certificate of addition FR n ° 88.06752 (Figure 5b). Due to the centrifugal offset of this back stack, the layer is also gripped at an intermediate line.

L'ensemble de préhension 12, 14 est alors soumis à un mouvement de translation l'amenant au-dessus de la plaquette de dépose 15, tandis que les barres de dépose 19 sont amenées vers leur position légèrement surélevée par rapport au chant supérieur de cette plaquette (figure 5c).The gripping assembly 12, 14 is then subjected to a translational movement bringing it above the depositing plate 15, while the depositing bars 19 are brought to their slightly raised position relative to the upper edge of this plate (Figure 5c).

Les préhenseurs 14 sont alors actionnés tel que décrit dans le brevet FR n° 84.04804, le certificat d'addition FR n° 86.02951 ou la demande de certificat d'addition FR n° 88.06752, et le panneau de dos est déposé à cheval sur les barres de dépose 19, en étant replié longitudinalement sur lui-même (figure 5d). Ce panneau est ensuite déposé sur la plaquette de dépose 15, après escamotage des barres de dépose 19, tandis que l'ensemble de préhension 12, 14 est ramené vers le plateau 1 (figure 5e).The grippers 14 are then actuated as described in patent FR n ° 84.04804, the certificate of addition FR n ° 86.02951 or the request for certificate of addition FR n ° 88.06752, and the back panel is placed astride the removal bars 19, being folded longitudinally on itself (Figure 5d). This panel is then deposited on the depositing plate 15, after retraction of the depositing bars 19, while the gripping assembly 12, 14 is brought back towards the plate 1 (FIG. 5e).

Le plateau tournant 1 subit alors une rotation d'un tiers de tour, le vérin 8 étant rétracté, destinée à amener l'empilage de devant à l'aplomb de l'ensemble de préhension 12, 14 et le vérin 8 déployé de façon à amener la couche supérieure de cet empilage au contact des préhenseurs 14. Contrairement au panneau de dos, et en raison du décalage centrifuge de cet empilage de devant, la couche est alors saisie le long d'une ligne proche de son fond.The turntable 1 then undergoes a rotation of a third of a turn, the jack 8 being retracted, intended to bring the front stack vertically in line with the gripping assembly 12, 14 and the jack 8 deployed so as to bringing the upper layer of this stack in contact with the grippers 14. Unlike the back panel, and due to the centrifugal offset of this front stack, the layer is then gripped along a line close to its bottom.

Parallèlement, la plaquette de dépose 15 est amenée dans sa position reculée vis-à-vis du plateau 1, correspondant à un état rétracté du vérin 18 (figures 5f et 5g).In parallel, the depositing plate 15 is brought into its retracted position with respect to the plate 1, corresponding to a retracted state of the jack 18 (FIGS. 5f and 5g).

L'ensemble de préhension 12, 14 est ensuite de nouveau amené au-dessus de la plaquette de dépose 15, tandis que les barres de dépose 19 subissent un mouvement ascendant (figure 5h), et le panneau de devant est déposé, étendu à cheval sur ces barres de dépose 19, sans repli longitudinal (figure 5i).The gripping assembly 12, 14 is then again brought above the depositing plate 15, while the depositing bars 19 undergo an upward movement (FIG. 5h), and the front panel is removed, extended on horseback on these deposit bars 19, without longitudinal folding (FIG. 5i).

Après escamotage des barres de dépose 19, le panneau de devant se retrouve donc étendu sur la plaquette de dépose 15 sans repli longitudinal (figure 5j). En outre, cette plaquette 15 se trouvant plus éloignée du plateau 1 que lors de la dépose du panneau de dos, le bord avant de ce panneau de dos et celui du panneau de devant se trouvent parfaitement alignés.After retraction of the deposit bars 19, the front panel is therefore extended on the deposit plate 15 without longitudinal folding (FIG. 5j). In addition, this plate 15 being further from the plate 1 than when removing the back panel, the front edge of this back panel and that of the front panel are perfectly aligned.

En dernier lieu, et de même que pour les panneaux de devant, l'ensemble de préhension 12, 14 vient saisir un panneau de gousset et le déposer sur la plaquette de dépose 15 (figure 5k). Les trois couches se trouvent alors superposées les unes sur les autres en position appropriée pour permettre d'effectuer leur couture immédiate.Finally, and as for the front panels, the gripping assembly 12, 14 comes to grab a gusset panel and place it on the removal plate 15 (Figure 5k). The three layers are then superimposed on each other in an appropriate position to allow their immediate sewing.

L'opératrice peut ainsi saisir les trois couches et réaliser sur une même machine à coudre d'abord la couture de pince (couture axiale du gousset), ensuite les deux coutures de côté. Le repliage du dos évite que celui-ci soit cousu lorsque la couture de gousset est réalisée.The operator can thus grasp the three layers and carry out on the same sewing machine first the clamp seam (axial stitching of the gusset), then the two side seams. The folding of the back prevents it from being sewn when the gusset seam is made.

Le temps de réalisation de ces opérations de préparation automatisée est divisé par un coefficient de 2,4 environ par rapport à celui nécessaire pour effectuer les trois opérations traditionnelles de préparation évoquées dans le préambule.The time required to carry out these automated preparation operations is divided by a coefficient of around 2.4 compared to that required to carry out the three traditional preparation operations mentioned in the preamble.

Claims (13)

  1. Process for placing above one another at least two flexible layers, especially a rear and a front part of an article such as briefs in the textile and hosiery industry, characterised in that it consists in forming a stack of each type of layers and distributing said stacks on a plate (1), whereupon, with each of said stacks :
    - at least one layer from a stack is gripped by means of a gripping assembly (12, 14) located above plate (1), while relatively displacing said plate and said gripping assembly between a so-called rest position in which they are separated from one another by a preset distance and a position in which the layers are gripped,
    - gripping assembly (12, 14) is caused to carry out a translational movement so as to take it above a depositing device (15), said assembly being actuated in such a manner that it releases the layer and spreads it on said depositing device,
    - gripping assembly (12, 14) is returned above plate (1) and said plate is caused to rotate by part of a revolution such as to position the second stack perpendicularly below the gripping assembly.
  2. Process according to claim 1,
    characterised in that one deposits the layers so that they straddle a depositing device constituted by a vertical plate (15) endowed with an upper horizontal depositing edge.
  3. Process according to claim 2,
    characterised in that one deposits, in a first stage, the layers on two depositing bars (19) located on either side of depositing plate (15), parallel to the upper edge of the latter and so as to move between the position substantially raised in relation to said upper edge and a low retracted position.
  4. Process according to one of claims 1, 2 or 3, characterised in that the layer transported is braked by suction close to and upstream of depositing device (15) so as to eliminate any risk of said layer forming undulations.
  5. Process according to one of the preceding claims for placing above one another a rear part, a front part and a gusset for briefs, characterised in that one positions the stacks of gussets and front parts on plate (1) subject to a centrifugal displacement in relation to the stack of back parts so as to ensure that gripping assembly (12, 14) grips each front part and each gusset along a line close to a longitudinal end of these latter and each back part along an intermediate line.
  6. Process according to claim 5,
    characterised in that one causes depositing device (15) to carry out a translational movement away from or towards plate (1) with a view to adjusting the position of said depositing device and causing the layers to be placed one above the other with one of their longitudinal edges aligned.
  7. Device for placing at least two flexible layers one above the other, especially a front and a rear part of an article such as briefs in the textile and hosiery industry, characterised in that it comprises :
    - a plate (1) endowed with means (5) for holding and positioning at least two stacks of layers distributed on said plate,
    - a layer depositing device (15) arranged at a distance from plate (1) and constituted by a vertical plate endowed with- an upper horizontal depositing edge,
    - a gripping assembly (12, 14) associated with actuating means and so designed as to grip at least one layer of a stack and releasing it on command,
    - means (13) for translational displacement of said gripping assembly so designed as to displace it between a so-called position of rest, where it is located above plate (1), and a so-called depositing position, where it is located directly below depositing device (15),
    - means (8, 9) for relative displacement of plate (1) and gripping assembly (12, 14), so designed as to displace them between a position corresponding to the position of rest of gripping assembly (12, 14) and a layer gripping position,
    - means (2, 3) for driving plate (1) in rotation so designed as to position the stacks of layers successively perpendicularly below gripping assembly (12, 14) in its position of rest.
  8. Device according to claim 7,
    characterised in that it comprises two intermediate depositing bars (19) located at either side of depositing plate (15) and parallel to the upper edge of the latter and means (20-23) for displacing said bars so designed as to displace them between a position substantially raised in relation to the upper edge of said plate and a low retracted position.
  9. Device according to one of claims 7 to 8, characterised in that it comprises means (16, 17, 18) for translational displacement of depositing device (15) in relation to plate (1), so designed as to regulate the distance separating said plate from said depositing device.
  10. Device according to one of claims 7 to 9, characterised in that it comprises suction means (24) located between plate (1) and depositing device (15) in the vicinity of the latter and so designed as to brake by suction the layer transported by gripping assembly (12, 14).
  11. Device according to one of claims 7 to 10, characterised in that it comprises means (6, 7) for regulating the position of at least one device (5) for holding and positioning the stacks of layers, said means being so designed as to radially adjust the positions of said devices on the plate.
  12. Device according to one of claims 7 to 11, characterised in that the means for relative displacement of plate (1) and gripping assembly (12, 14) comprise a jack (8) arranged vertically and located below plate (1), said jack being endowed with a rod carrying a support plate (9) so designed as to come into contact with the plate when the jack is extended so as to move said plate to an upper layer gripping position.
  13. Device according to claim 12, characterised in that plate (1) and support plate (9) are respectively endowed with a lower face and an upper face having engagement structures of matching shape so designed as to ensure precise rotations of said plate.
EP89201592A 1988-06-27 1989-06-19 Process and device for indexing fabric work pieces, especially a rear and a front part of an article such as briefs Expired - Lifetime EP0349041B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89201592T ATE84197T1 (en) 1988-06-27 1989-06-19 METHOD AND DEVICE FOR OVERLAYING AT LEAST TWO LAYERS OF FABRIC, IN PARTICULAR A BACK PART AND A FRONT PART OF AN ARTICLE SUCH AS UNDERWEAR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8808713A FR2633267B1 (en) 1988-06-27 1988-06-27 METHOD AND DEVICE FOR LAYING UP AT LEAST TWO FLEXIBLE LAYERS, IN PARTICULAR A BACK PANEL AND A FRONT PANEL OF AN ARTICLE SUCH AS A SLIP IN THE TEXTILE AND KNITTING INDUSTRY
FR8808713 1988-06-27

Publications (2)

Publication Number Publication Date
EP0349041A1 EP0349041A1 (en) 1990-01-03
EP0349041B1 true EP0349041B1 (en) 1993-01-07

Family

ID=9367836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89201592A Expired - Lifetime EP0349041B1 (en) 1988-06-27 1989-06-19 Process and device for indexing fabric work pieces, especially a rear and a front part of an article such as briefs

Country Status (6)

Country Link
US (1) US5039079A (en)
EP (1) EP0349041B1 (en)
JP (1) JPH0252695A (en)
AT (1) ATE84197T1 (en)
DE (1) DE68904251D1 (en)
FR (1) FR2633267B1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021966A (en) * 1958-10-23 1962-02-20 Broadbent & Sons Ltd Thomas Stacking of flat articles
US3604701A (en) * 1967-11-07 1971-09-14 Ivanhoe Research Corp Processes, systems, and composite systems for automating the manufacture of wearing apparel, headgear, footwear, components thereof and similar products
DE2325701A1 (en) * 1973-05-21 1974-12-19 Bielefelder Spezialmasch Collar and cuff prepn system - has rotary table to service work stations located around its circumference
IT1138808B (en) * 1981-06-23 1986-09-17 Rockwell Rimoldi Spa PICKING AND POSITIONING DEVICE OF STACKED FABRIC PIECES
FR2631613B2 (en) * 1984-03-26 1990-09-07 Rouleau Patrick IMPROVED DEVICE FOR GRIPPING SOFT LAYERS, ESPECIALLY TEXTILES
FR2561631B1 (en) * 1984-03-26 1986-08-29 Rouleau Patrick METHOD AND DEVICE FOR GRIPPING FLEXIBLE LAYERS, PARTICULARLY TEXTILES AND MACHINE FOR GRIPPING AND TRANSFERRING SUCH LAYERS
KR940011002B1 (en) * 1985-03-22 1994-11-22 퍼시픽 던롭 리미티드 Improvement relating to transporting limp fabric
US4633604A (en) * 1985-12-02 1987-01-06 Russell Corporation Automatic garment portion loader
FR2594814B2 (en) * 1986-02-24 1988-05-13 Rouleau Patrick IMPROVED DEVICE FOR GRIPPING SOFT LAYERS, ESPECIALLY TEXTILES
GB8621367D0 (en) * 1986-09-04 1986-10-15 Corah Plc Garment manufacture
US4763890A (en) * 1986-11-21 1988-08-16 Blue Bell, Inc. System for separating and transferring the uppermost fabric ply from a stack of fabric plies

Also Published As

Publication number Publication date
JPH0252695A (en) 1990-02-22
DE68904251D1 (en) 1993-02-18
FR2633267A1 (en) 1989-12-29
FR2633267B1 (en) 1990-10-19
US5039079A (en) 1991-08-13
EP0349041A1 (en) 1990-01-03
ATE84197T1 (en) 1993-01-15

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