EP0321406A1 - Braiding machine - Google Patents

Braiding machine Download PDF

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Publication number
EP0321406A1
EP0321406A1 EP88810850A EP88810850A EP0321406A1 EP 0321406 A1 EP0321406 A1 EP 0321406A1 EP 88810850 A EP88810850 A EP 88810850A EP 88810850 A EP88810850 A EP 88810850A EP 0321406 A1 EP0321406 A1 EP 0321406A1
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EP
European Patent Office
Prior art keywords
braiding
machine according
reel
braid
orbits
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EP88810850A
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German (de)
French (fr)
Inventor
Charles Maillefer
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/02—Braiding or lacing machines with spool carriers guided by track plates or by bobbin heads exclusively
    • D04C3/20—Arrangement of bobbin heads and guides or track plates in the machine

Definitions

  • known braiding machines comprise a braid receiver defining a braiding axis and a guide and drive device for braid elements mounted on reels and unwinding in directions which converge towards a braiding point. located on the braiding axis.
  • the guide device comprises reel holders distributed over a plurality of supports which each guide a group of reel holders along a separate orbit which surrounds the braiding axis.
  • the characteristics defined above are found for example in the braiding machine according to patent CH 636 146, or in the machine according to the publication of European patent application EP 00 88 913.
  • the different groups of spool holders deliver braid elements which describe conical surfaces having their apex at the braiding point and these conical surfaces intersect.
  • the number of supports and groups of reel holders is two.
  • One of the two conical plies described by the braid elements coming from each of the two groups of spool holders has as its director a circle centered on the braiding axis, while the other ply has as director, due to the periodic actuation of a set of levers moving radially, a closed curve which is also centered on the braiding axis, but which has a lobed shape.
  • the object of the present invention is to remedy these drawbacks.
  • the subject of the present invention is a braiding machine, comprising a braid receiver defining a braiding axis and a guiding and driving device for braid elements which each take place from a reel and which converge on a braiding point located on the braiding axis, this device comprising reel holders distributed on a plurality of supports which each guide a group of reel holders, characterized in that the braid elements are extended on the right line of the coil which carries them to the braiding point, in that each support has a guide channel for the coil carriers which it guides and in that said channels define orbits which are fixed closed curves placed in relative positions such as the conical surfaces described by the braid elements from the different groups of spool holders intersect.
  • the machines which will be described below are mainly characterized by the fact that, unlike known machines, the orbits which the different groups of bobbins follow are not centered on the braiding axis. It has in fact been observed that, if the orbits are off-center with respect to the braiding axis, conical sheets described by elements coming directly from the reel holders can be cut in such a way that the reel holders are led on their path guides ensure regular interlacing of the braid elements, as desired, without the need to radially move the braid elements by auxiliary means or by guiding the reel holders according to lobed curves. The inertia effects which are felt in an unpleasant manner in the embodiments of known braiding machines are therefore eliminated.
  • FIG. 1 to 4 The schematic figures which will now be described explain the principle of establishing orbits in the machine according to the invention.
  • two supports 1, 2 fitted with circular guideways are integral with one another and designed so as to define two orbits 3, 4, which are circular, intersect at two points 5, 6, and are arranged symmetrically with respect to the braiding axis.
  • These orbits are defined by the intersection of two planes with a virtual sphere 7 having its center at the braiding point 8.
  • the braid receiver of the machine described is generally designated by 9. It has a reel 10 located at the part bottom of the machine and a reel 11 located at the top of the machine.
  • Figs. 3 and 4 show by way of example how the supports 1 and 2 as well as the reel holders 13 can be produced.
  • Each support 1 or 2 comprises a guide track constituted by a section with rectangular section 15 having a slot 16 in its upper surface so as to define the corresponding orbit.
  • the guide track comprises a rack 17 in which mesh pinions 18 supported by the base 19 of the coil holder 13.
  • This base carries a motor 20 which will be supplied with current by means of friction shoes and conductors mounted inside the profile 15.
  • the torque can be transmitted to the two pinions 18 for example by toothed belts 21.
  • all another drive mode for example by chains, or electromagnetic systems of the linear motor type equipping the guide tracks 15, can be used in place of the arrangement shown in FIGS. 3 and 4.
  • Each base 19 is secured to a stirrup 22 carrying the coil 23.
  • the braid elements wound on the coil 23 can naturally be of any type: ribbons of plastic or textile material, groups of wires metallic or other material, etc.
  • the reel holder drive can be either continuous or intermittent via pulses and a control device (not shown) will allow the reel holders to be controlled and their movement to be controlled.
  • the embodiment shown in fig. 5 and 6 has two separate supports. These supports are each equipped with a guide track 24 or 25 of eccentric circular shape, on the one hand or on the other hand of the braiding axis in two opposite directions.
  • the guide track 24 is closer to the braiding point 26 than the second guide track 25. It can be seen in FIG.
  • these two guideways define orbits from which extend conical sheets with circular director, the angle of which is different, the sheet defined by the guideway 25 having a larger opening than that which is defined by the guideway 24
  • the two supports being distinct from each other, the reel holders 27 guided by the track 24 or by the track 25, do not intersect.
  • the track 24 must be provided with two complete interruptions 28, placed so that the braid elements unwound from the reel carriers mounted on the track 25, can pass through track 24 when the reel holders describe their orbit.
  • the arrangement shown in Figs. 5 and 6 has four reel holders 27 on track 25, and only two on track 24.
  • the braiding point 26 is on the braiding axis defined by the reel 29 and the reel 30 of the receiver braid 31.
  • the orbits do not have to be circular and eccentric.
  • one of the orbits can even be coaxial with the braiding axis, the other being either an ellipse, an eccentric circle, or any other closed curve having no center of symmetry on the braiding axis.
  • more than two spool holder supports can be provided which surround the braiding axis without being coaxial.
  • the final appearance of the braid depends on the structures of the braid elements, the number of elements driven by each group of spool carriers and the values and directions of the speeds of the spool carriers in each group. All these parameters can be freely chosen in the construction according to the present invention.

Abstract

The braid receiver (31) conveys the braid support (32) along the braiding axis passing through the braiding point (26). The guide tracks (24, 25) are circular, and are offset relative to the braiding axis, whilst at the same time surrounding it. They each guide one of the two groups of bobbin carriers (27). These bobbin carriers rotate in opposite directions and unwind the braid elements (33) towards the braiding point (26). <IMAGE>

Description

De façon générale, les machines à tresser connues comprennent un récepteur de tresse définissant un axe de tressage et un dispositif de guidage et d'entraînement pour des éléments de tresse montés sur des bobines et se déroulant dans des directions qui convergent vers un point de tressage situé sur l'axe de tressage. Le dispositif de guidage comporte des porte-bobines répartis sur une pluralité de supports qui guident chacun un groupe de porte-bobines le long d'une orbite distincte qui entoure l'axe de tressage.In general, known braiding machines comprise a braid receiver defining a braiding axis and a guide and drive device for braid elements mounted on reels and unwinding in directions which converge towards a braiding point. located on the braiding axis. The guide device comprises reel holders distributed over a plurality of supports which each guide a group of reel holders along a separate orbit which surrounds the braiding axis.

Ainsi, les caractéristiques définies ci-dessus se retrouvent par exemple dans la machine à tresser selon le brevet CH 636 146, ou dans la machine selon la publication de demande de brevet européen EP 00 88 913. Dans ces machines connues, les différents groupes de porte-bobines débitent des éléments de tresse qui décrivent des surfaces coniques ayant leur sommet au point de tressage et ces surfaces coniques se coupent. Le nombre des supports et des groupes de porte-bobines est de deux. L'une des deux nappes coniques décrites par les éléments de tresse provenant de chacun des deux groupes de porte-bobines a comme directrice un cercle centré sur l'axe de tressage, tandis que l'autre nappe a pour directrice, du fait de la mise en action périodique d'un jeu de leviers se déplaçant radialement, une courbe fermée qui est également cen­trée sur l'axe de tressage, mais qui a une forme lobée.Thus, the characteristics defined above are found for example in the braiding machine according to patent CH 636 146, or in the machine according to the publication of European patent application EP 00 88 913. In these known machines, the different groups of spool holders deliver braid elements which describe conical surfaces having their apex at the braiding point and these conical surfaces intersect. The number of supports and groups of reel holders is two. One of the two conical plies described by the braid elements coming from each of the two groups of spool holders has as its director a circle centered on the braiding axis, while the other ply has as director, due to the periodic actuation of a set of levers moving radially, a closed curve which is also centered on the braiding axis, but which has a lobed shape.

Ces machines sont compliquées et bruyantes. En outre, la vitesse des porte-bobines sur leur support le long de leurs orbites est limitée.These machines are complicated and noisy. In addition, the speed of the reel holders on their support along their orbits is limited.

Le but de la présente invention est de remé­dier à ces inconvénients.The object of the present invention is to remedy these drawbacks.

Dans ce but, la présente invention a pour ob­jet une machine à tresser, comprenant un récepteur de tresse définissant un axe de tressage et un dispositif de guidage et d'entraînement pour des éléments de tres­se qui se déroulent chacun à partir d'une bobine et qui convergent vers un point de tressage situé sur l'axe de tressage, ce dispositif comportant des porte-bobines répartis sur une pluralité de supports qui guident chacun un groupe de porte-bobines, caractérisée en ce que les éléments de tresse sont étendus en droite ligne de la bobine qui les porte au point de tressage, en ce que chaque support comporte une voie de guidage pour les porte-bobines qu'il guide et en ce que les dites voies définissent des orbites qui sont des courbes fer­mées fixes placées dans des positions relatives telles que les surfaces coniques décrites par les éléments de tresse provenant des différents groupes de porte-bobi­nes se coupent.To this end, the subject of the present invention is a braiding machine, comprising a braid receiver defining a braiding axis and a guiding and driving device for braid elements which each take place from a reel and which converge on a braiding point located on the braiding axis, this device comprising reel holders distributed on a plurality of supports which each guide a group of reel holders, characterized in that the braid elements are extended on the right line of the coil which carries them to the braiding point, in that each support has a guide channel for the coil carriers which it guides and in that said channels define orbits which are fixed closed curves placed in relative positions such as the conical surfaces described by the braid elements from the different groups of spool holders intersect.

On va décrire ci-après, à titre d'exemple, deux formes d'exécution de l'objet de l'invention, en se référant au dessin annexé, dont :

  • la fig. 1 est une vue en élévation schématique simplifiée et partielle de la première forme d'exé­cution,
  • la fig. 2 est une vue en plan de dessus égale­ment schématique, simplifiée et partielle de la machine de la fig. 1,
  • les fig. 3 et 4 sont des vues à plus grande échelle, respectivement en coupe longitudinale et transversale, montrant un porte-bobine conduit par une voie de guidage,
  • la fig. 5 est une vue en élévation analogue à la fig. 1 montrant une deuxième forme d'exécution, et la fig. 6 est une vue en plan de dessus analogue à la fig. 2 de la seconde forme d'exécution.
Two embodiments of the subject of the invention will be described below, by way of example, with reference to the attached drawing, of which:
  • fig. 1 is a simplified and partial schematic elevation view of the first embodiment,
  • fig. 2 is a plan view also schematic, simplified and partial of the machine of FIG. 1,
  • fig. 3 and 4 are views on a larger scale, respectively in longitudinal and transverse section, showing a reel holder driven by a guide track,
  • fig. 5 is an elevational view similar to FIG. 1 showing a second embodiment, and FIG. 6 is a top plan view similar to fig. 2 of the second embodiment.

Les machines qui vont être décrites ci-aprés se caractérisent principalement par le fait que con­trairement aux machines connues, les orbites que suivent les différent groupes de porte-bobines ne sont pas centrées sur l'axe de tressage. On a constaté en effet que, si les orbites sont décentrées par rapport à l'axe de tressage, des nappes coniques décrites par des éléments provenant directement des porte-bobines peuvent se couper de telle façon que les porte-bobines conduits sur leur voie de guidage assurent l'entrela­cement régulier des éléments de tresse, tel qu'il est désiré, sans qu'il soit nécessaire de déplacer radialement les éléments de tresse par des moyens auxiliaires ou par un guidage des porte-bobines selon des courbes lobées. Les effets d'inertie qui se font sentir d'une façon désagréable dans les réalisations des machines à tresser connues, sont donc éliminés.The machines which will be described below are mainly characterized by the fact that, unlike known machines, the orbits which the different groups of bobbins follow are not centered on the braiding axis. It has in fact been observed that, if the orbits are off-center with respect to the braiding axis, conical sheets described by elements coming directly from the reel holders can be cut in such a way that the reel holders are led on their path guides ensure regular interlacing of the braid elements, as desired, without the need to radially move the braid elements by auxiliary means or by guiding the reel holders according to lobed curves. The inertia effects which are felt in an unpleasant manner in the embodiments of known braiding machines are therefore eliminated.

Les figures schématiques qui vont être décri­tes maintenant expliquent le principe d'établissement des orbites dans la machine selon l'invention. Dans la forme d'exécution des fig. 1 à 4, deux supports 1, 2 équipés de voies de guidage circulaires sont solidaires l'un de l'autre et conçus de façon à définir deux orbites 3, 4, qui sont circulaires, se coupent en deux point 5, 6, et sont disposées symétriquement par rapport à l'axe de tressage. Ces orbites sont définies par l'intersection de deux plans avec une sphère vir­tuelle 7 ayant son centre au point de tressage 8. Le récepteur de tresse de la machine décrite est désigné de façon générale par 9. Il comporte un dévidoir 10 situé à la partie inférieure de la machine et un en­rouleur 11 situé à la partie supérieure de la machine. Ces dispositifs sont de nature connue en soi et n'ont pas besoin d'être décrits. Ils sont placés de façon que le support de tresse 12 se déplace de bas en haut en définissant ainsi un axe de tressage vertical. Au cours du mouvement du support de tresse 12, des porte-bobines 13 conduits par les supports 1 et 2 se déplacent dans des sens opposés, chacun sur une des orbites 3 ou 4. On voit à la fig. 2, que les deux porte-bobines 13 doivent avoir des itinéraires qui évitent qu'ils se rencontrent à l'un des points 5 ou 6, mais que cette limitation mise à part, leur déplacement peut être quelconque sur leur orbite. En admettant des vitesses de déplacement égales et constantes pour les deux porte-bobines 13, on voit qu'avec la disposition de la fig. 2, le recouvrement des deux éléments de tresse 14 dévidés par les porte-bobines 13 aura lieu lorsque les porte-bobines se trouvent sur l'axe C. Etant donné l'orientation de cet axe, des porte-bobines supplémentaires disposés sur les orbites 3 et 4 dans des positions décalées de façon à se trouver sur l'axe C en même temps que les porte-bobines 13 permettrait de réaliser une tresse à quatre éléments de tressage. Ainsi, en choissisant judicieusement la disposition des porte-bobines sur leur support, on peut réaliser des tresses ayant n'importe quel nombre d'éléments de tresse désiré.The schematic figures which will now be described explain the principle of establishing orbits in the machine according to the invention. In the embodiment of Figs. 1 to 4, two supports 1, 2 fitted with circular guideways are integral with one another and designed so as to define two orbits 3, 4, which are circular, intersect at two points 5, 6, and are arranged symmetrically with respect to the braiding axis. These orbits are defined by the intersection of two planes with a virtual sphere 7 having its center at the braiding point 8. The braid receiver of the machine described is generally designated by 9. It has a reel 10 located at the part bottom of the machine and a reel 11 located at the top of the machine. These devices are of a nature known per se and have no no need to be described. They are placed so that the braid support 12 moves from bottom to top, thus defining a vertical braiding axis. During the movement of the braid support 12, reel carriers 13 driven by the supports 1 and 2 move in opposite directions, each in one of the orbits 3 or 4. We see in FIG. 2, that the two reel holders 13 must have routes which prevent them from meeting at one of the points 5 or 6, but that apart from this limitation, their movement can be arbitrary in their orbit. By admitting constant and equal displacement speeds for the two spool carriers 13, it can be seen that with the arrangement of FIG. 2, the overlap of the two braid elements 14 unwound by the reel holders 13 will take place when the reel holders are on the axis C. Given the orientation of this axis, additional reel holders arranged on the orbits 3 and 4 in offset positions so as to be on the axis C at the same time as the reel holders 13 would make it possible to produce a braid with four braiding elements. Thus, by judiciously choosing the arrangement of the reel holders on their support, it is possible to make braids having any number of braid elements desired.

Les fig. 3 et 4 montrent à titre d'exemple comment les supports 1 et 2 ainsi que les porte-bobines 13 peuvent être réalisés. Chaque support 1 ou 2 comporte une voie de guidage constituée par un profilé à section rectangulaire 15 présentant une fente 16 dans sa surface supérieure de manière à définir l'orbite correspondante. La voie de guidage comporte une crémaillère 17 dans laquelle engrènent des pignons 18 supportés par l'embase 19 du porte-bobines 13. Cette embase porte un moteur 20 qui sera alimenté en courant par l'intermédiaire de frotteurs et de conducteurs montés à l'intérieur du profilé 15. Le couple de rotation peut être transmis aux deux pignons 18 par exemple par des courroies crantées 21. Toutefois, tout autre mode d'entraînement, par exemple par des chaînes, ou des systèmes électro-magnétiques du type moteur linéaire équipant les voies de guidage 15, peut être utilisé en lieu et place de l'agencement représenté aux fig. 3 et 4. Chaque embase 19 est solidaire d'un étrier 22 portant la bobine 23. Les éléments de tresse enroulés sur la bobine 23 peuvent naturellement être de n'importe quel type : des rubans en matière plastique ou textile, des groupes de fils métalliques ou d'une autre matière, etc.Figs. 3 and 4 show by way of example how the supports 1 and 2 as well as the reel holders 13 can be produced. Each support 1 or 2 comprises a guide track constituted by a section with rectangular section 15 having a slot 16 in its upper surface so as to define the corresponding orbit. The guide track comprises a rack 17 in which mesh pinions 18 supported by the base 19 of the coil holder 13. This base carries a motor 20 which will be supplied with current by means of friction shoes and conductors mounted inside the profile 15. The torque can be transmitted to the two pinions 18 for example by toothed belts 21. However, all another drive mode, for example by chains, or electromagnetic systems of the linear motor type equipping the guide tracks 15, can be used in place of the arrangement shown in FIGS. 3 and 4. Each base 19 is secured to a stirrup 22 carrying the coil 23. The braid elements wound on the coil 23 can naturally be of any type: ribbons of plastic or textile material, groups of wires metallic or other material, etc.

L'entraînement des porte-bobines pourra être soit continu, soit intermittent par l'intermédiaire d'impulsions et un dispositif de commande (non représenté) permettra de piloter les porte-bobines et de contrôler leur déplacement.The reel holder drive can be either continuous or intermittent via pulses and a control device (not shown) will allow the reel holders to be controlled and their movement to be controlled.

Alors que dans la première forme d'exécution, les orbites définies par les supports sont des cercles excentrés de valeur égale sur un même axe de part et d'autre du point d'intersection entre cet axe et l'axe de tressage, et les deux supports sont solidaires et conçus de façon que les porte-bobines se croisent sur leur voie de guidage, la forme d'exécution représentée aux fig. 5 et 6 comporte deux supports distincts. Ces supports sont équipés chacun d'une voie de guidage 24 ou 25 de forme circulaire excentrée, d'une part ou d'autre part de l'axe de tressage dans deux directions opposées. La voie de guidage 24 est plus rapprochée du point de tressage 26 que la seconde voie de guidage 25. On voit à la fig. 5 que ces deux voies de guidage définissent des orbites à partir desquelles s'étendent des nappes coniques à directrice circulaire, dont l'angle au centre est différent, la nappe définie par la voie de guidage 25 ayant une ouverture plus grande que celle qui est définie par la voie de guidage 24. En outre, les deux supports étant distincts l'un de l'autre, les porte-bobines 27 guidés par la voie 24 ou par la voie 25, ne se croisent pas. Toutefois, pour permettre l'intersection entre les deux nappes coniques, la voie 24 doit être pourvue de deux interruptions complètes 28, placées de façon que les éléments de tresse déroulés à partir des porte-bobines montés sur la voie 25, puissent passer à travers la voie 24 lorsque les porte-bobines décrivent leur orbite. On remarque que la disposition représentée aux fig. 5 et 6 comporte quatre porte-bobines 27 sur la voie 25, et deux seulement sur la voie 24. Ici également, le point de tressage 26 se trouve sur l'axe de tressage défini par l'enrouleur 29 et le dévidoir 30 du récepteur de tresse 31.Whereas in the first embodiment, the orbits defined by the supports are eccentric circles of equal value on the same axis on either side of the point of intersection between this axis and the braiding axis, and the two supports are integral and designed so that the reel carriers cross on their guide track, the embodiment shown in fig. 5 and 6 has two separate supports. These supports are each equipped with a guide track 24 or 25 of eccentric circular shape, on the one hand or on the other hand of the braiding axis in two opposite directions. The guide track 24 is closer to the braiding point 26 than the second guide track 25. It can be seen in FIG. 5 that these two guideways define orbits from which extend conical sheets with circular director, the angle of which is different, the sheet defined by the guideway 25 having a larger opening than that which is defined by the guideway 24 In addition, the two supports being distinct from each other, the reel holders 27 guided by the track 24 or by the track 25, do not intersect. However, to allow the intersection between the two conical layers, the track 24 must be provided with two complete interruptions 28, placed so that the braid elements unwound from the reel carriers mounted on the track 25, can pass through track 24 when the reel holders describe their orbit. Note that the arrangement shown in Figs. 5 and 6 has four reel holders 27 on track 25, and only two on track 24. Here also, the braiding point 26 is on the braiding axis defined by the reel 29 and the reel 30 of the receiver braid 31.

Il n'est pas nécessaire que les orbites soient circulaires et excentrées. Dans une disposition avec deux supports de porte-bobines, une des orbites peut même être coaxiale à l'axe de tressage, l'autre étant soit une ellipse, soit un cercle excentré, soit toute autre courbe fermée n'ayant pas de centre de symétrie sur l'axe de tressage. Le cas échéant, on peut prévoir plus de deux supports de porte-bobines qui entourent l'axe de tressage sans être coaxiaux.The orbits do not have to be circular and eccentric. In an arrangement with two reel holder supports, one of the orbits can even be coaxial with the braiding axis, the other being either an ellipse, an eccentric circle, or any other closed curve having no center of symmetry on the braiding axis. If necessary, more than two spool holder supports can be provided which surround the braiding axis without being coaxial.

Comme on le sait, l'aspect final de la tresse dépend des structures des éléments de tresse, des nombres d'éléments conduits par chaque groupe de porte-bobines et des valeurs et des sens des vitesses des porte-bobines dans chaque groupe. Tous ces paramètres peuvent être choisis librement dans la construction selon la présente invention.As is known, the final appearance of the braid depends on the structures of the braid elements, the number of elements driven by each group of spool carriers and the values and directions of the speeds of the spool carriers in each group. All these parameters can be freely chosen in the construction according to the present invention.

Claims (10)

1. Machine à tresser, comprenant un récepteur de tresse définissant un axe de tressage et un dispositif de guidage et d'entraînement pour des éléments de tres­se qui se déroulent chacun à partir d'une bobine et qui convergent vers un point de tressage situé sur l'axe de tressage, ce dispositif comportant des porte-bobines répartis sur une pluralité de supports qui guident chacun un groupe de porte-bobines, caractérisée en ce que les éléments de tresse sont étendus en droite ligne de la bobine qui les porte au point de tressage, en ce que chaque support comporte une voie de guidage pour les porte-bobines qu'il guide et en ce que les dites voies définissent des orbites qui sont des courbes fer­mées fixes placées dans des positions relatives telles que les surfaces coniques décrites par les éléments de tresse provenant des différents groupes de porte-bobi­nes se coupent.1. Braiding machine, comprising a braid receiver defining a braiding axis and a guide and drive device for braid elements which each unwind from a spool and which converge on a braiding point located on the braiding axis, this device comprising reel holders distributed over a plurality of supports which each guide a group of reel holders, characterized in that the braid elements are extended in a straight line from the reel which carries them to the point braiding, in that each support has a guide track for the reel holders it guides and in that said tracks define orbits which are fixed closed curves placed in relative positions such as the conical surfaces described by the braid elements from the different groups of spool carriers are cut. 2. Machine selon la revendication 1, caractérisée en ce que les dites orbites sont des courbes planes, sans point d'inflexion.2. Machine according to claim 1, characterized in that said orbits are planar curves, without inflection point. 3. Machine selon la revendication 2, caractérisée en ce qu'au moins une orbite est définie par une voie de guidage d'un porte-bobine, qui présente au moins une interruption et qui est agencée de manière que le ou les porte-bobines guidés par la dite voie puissent traverser la dite interruption.3. Machine according to claim 2, characterized in that at least one orbit is defined by a guide path of a reel holder, which has at least one interruption and which is arranged so that the reel holder (s) guided by the said way can cross the said interruption. 4. Machine selon la revendication 3, caractérisée en ce qu'au moins une orbite est un cercle et en ce qu'au plus une orbite circulaire a son centre sur l'axe de tressage.4. Machine according to claim 3, characterized in that at least one orbit is a circle and in that at most one circular orbit has its center on the axis braiding. 5. Machine selon la revendication 4, caractérisée en ce que les orbites sont des cercles situés sur une même sphère virtuelle ayant son centre au point de tressage.5. Machine according to claim 4, characterized in that the orbits are circles located on the same virtual sphere having its center at the braiding point. 6. Machine selon la revendication 4, caractérisée en ce que les orbites sont des cercles situés sur des sphères virtuelles de rayons différents, ayant leur centre au point de tressage.6. Machine according to claim 4, characterized in that the orbits are circles located on virtual spheres of different radii, having their centers at the braiding point. 7. Machine selon la revendication 3, caractérisée en ce qu'au moins une orbite est une ellipse.7. Machine according to claim 3, characterized in that at least one orbit is an ellipse. 8. Machine selon l'une quelconque des revendica­tions 1 à 7, caractérisée en ce que le nombre des supports et des groupes de porte-bobines est de deux.8. Machine according to any one of claims 1 to 7, characterized in that the number of supports and groups of reel holders is two. 9. Machine selon la revendication 8, caractérisée en ce qu'un premier support est continu, tandis que le second comporte deux interruptions pour le passage de la nappe conique décrite par les éléments de tresse guidés par le premier support.9. Machine according to claim 8, characterized in that a first support is continuous, while the second has two interruptions for the passage of the conical sheet described by the braid elements guided by the first support. 10. Machine selon la revendication 8, caractérisée en ce que les deux supports sont solidaires l'un de l'autre et comportent deux voies de guidage de porte-­bobines, définissant chacune une orbite, ces voies se croisant en deux points de croisement.10. Machine according to claim 8, characterized in that the two supports are integral with one another and comprise two guide ways for reel holders, each defining an orbit, these tracks crossing at two crossing points.
EP88810850A 1987-12-16 1988-12-09 Braiding machine Withdrawn EP0321406A1 (en)

Applications Claiming Priority (2)

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CH4905/87 1987-12-16
CH490587 1987-12-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0413658A1 (en) * 1989-08-17 1991-02-20 Charles Maillefer Braiding machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB853454A (en) * 1956-01-16 1960-11-09 Charles Maria Wahl Improvements in and relating to winding apparatus
GB1034991A (en) * 1964-08-03 1966-07-06 C R F Ohg Di Prec E S P A Improvements in rope spinning machines
GB1299611A (en) * 1969-06-26 1972-12-13 British Insulated Callenders Improvements in braiding machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB853454A (en) * 1956-01-16 1960-11-09 Charles Maria Wahl Improvements in and relating to winding apparatus
GB1034991A (en) * 1964-08-03 1966-07-06 C R F Ohg Di Prec E S P A Improvements in rope spinning machines
GB1299611A (en) * 1969-06-26 1972-12-13 British Insulated Callenders Improvements in braiding machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0413658A1 (en) * 1989-08-17 1991-02-20 Charles Maillefer Braiding machine
US5176062A (en) * 1989-08-17 1993-01-05 Maillefer Charles E Braiding machine

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