EP0045758B1 - Vorrichtung zum heben der kettfäden in einem webstuhl und mit einer solchen vorrichtung ausgerüsteter webstuhl - Google Patents

Vorrichtung zum heben der kettfäden in einem webstuhl und mit einer solchen vorrichtung ausgerüsteter webstuhl Download PDF

Info

Publication number
EP0045758B1
EP0045758B1 EP81900431A EP81900431A EP0045758B1 EP 0045758 B1 EP0045758 B1 EP 0045758B1 EP 81900431 A EP81900431 A EP 81900431A EP 81900431 A EP81900431 A EP 81900431A EP 0045758 B1 EP0045758 B1 EP 0045758B1
Authority
EP
European Patent Office
Prior art keywords
pulley
arm
thrust
wire
loom according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81900431A
Other languages
English (en)
French (fr)
Other versions
EP0045758A1 (de
Inventor
Tibor Arvai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staeubli Verdol SA
Original Assignee
Verdol SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Verdol SA filed Critical Verdol SA
Publication of EP0045758A1 publication Critical patent/EP0045758A1/de
Application granted granted Critical
Publication of EP0045758B1 publication Critical patent/EP0045758B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for

Definitions

  • the present invention relates to a machine for an industrial weaving loom capable of producing shaped fabrics, as a Jacquard loom can do, in which a sheet of parallel warp threads is progressively unwound step by step, some of the warp threads chosen by programming means as a function of the colored pattern or the weave of fabric to be produced, we pass a weft thread between the raised warp threads and the non-lifted warp threads of the web, we lower the threads or some of the threads raised and the weft thread thus passed is pressed by means of a weaving comb against the other weft threads already woven, that is to say against the front of the fabric already produced, only during this time it is wound on a spool or beam as the weaving program advances step by step.
  • This type of loom for shaped fabrics is of great interest because it makes it possible to manufacture fabrics of an infinite variety both with regard to the texture or weave of the fabric and with regard to the decoration which is produced by the the only game of skilfully studied intertwining of weft threads and warp threads.
  • the whole problem of producing a pattern lies at each weaving step in the choice of those warp threads that must be raised before the passage of a specific weft thread.
  • the warp threads must be lifted by mechanisms whose bulk has never been reduced until now to match a weaving as tight as we would like, while allowing to weave a pattern over large widths (the present invention typically seeks to achieve a fabric width of 140 cm or more with 10 threads per millimeter, which has never been successful before, in order to manufacture for example upholstery fabrics panoramic decoration rather than a decoration repeated several times in a width of fabric as is currently done).
  • the present invention proposes a mechanical for a weaving loom of the type described above, that is to say comprising a system for advancing a plurality of warp threads arranged in a layer, a system for the selective lifting of selected warp threads, coupled to means for programming the choice of warp threads to be lifted, and a system for inserting weft thread between raised warp threads and non-raised warp threads, the system for lifting warp yarns comprising a plurality of lifting yarns (one for each warp yarn) which are yarns stretched substantially perpendicular to the web of warp yarns, each lifting yarn comprising a loop or mesh through which a chain so that the chain wire can be lifted by pulling on one end of the corresponding lifting wire.
  • each lifting wire is wound in the groove of a respective pulley provided with individual displacement means to rotate it by an angle corresponding to the desired lifting height of the wire whose end is fixed in the groove, these means being arranged on the side opposite to the side where the lifting wire is fixed on the pulley relative to the vertical plane passing through the axis of the latter, the pulleys being arranged in rows staggered in height above the ply of warp threads, the successive rows being shifted slightly, gradually from one floor to another.
  • the pulleys in a row have their lifting wire arrival side immediately set back from the lifting wire arrival side of the pulleys of the stored immediately above, so that there is no risk of interference of the various lifting wires between themselves and with the pulleys or their means of rotation (the lifting wire arrival sides constituting moreover the ultimate ends of each set of a pulley and its respective means of displacement).
  • the density of the warp threads is thus increased at will by increasing the number of superimposed and offset rows of adjoining pulleys.
  • a common drive means is provided for several pulleys (in practice a rotating shaft for all the pulleys of a row), and an individual coupling and decoupling means between each pulley and the drive means, suitable for authorizing or not the rotation of the respective pulley for the lifting of a warp thread, all of the coupling and decoupling means being controlled by the programming means.
  • the individual coupling and decoupling means is capable of causing a rotation of the pulley either in a first direction to a lifting position of warp thread, or in the opposite direction to a return position of warp thread, the choice being made by the programming means.
  • a bistable positioning system of the pulley is provided to maintain it in that of the angular positions where it has been placed following an actuation of the coupling means, only a new action of the latter, in a direction of movement of the pulley towards the other angular position being likely to cause a rotation of the pulley.
  • This bistable positioning system comprises at least two notches or lugs for positioning the pulley, or parts linked to the rotation of the pulley, these notches or lugs cooperating with a fixed frame to define the two stable angular positions of the pulley, and a friction means acting between the frame and the pulley or the parts related to the rotation of the pulley.
  • the coupling means comprises a thrust arm undergoing a back-and-forth movement with a possibility of oscillation in a direction transverse to the back-and-forth direction, a deflection means of the arm, actuable by the programming means being provided to orient the direction of movement of the arm, two thrust surfaces being provided, opposite one end of the thrust arm, these surfaces being linked to the rotation of the pulley in such a way that the pulley turns in one direction when the pushing arm pushes the first pushing surface and that it turns in the other direction when the arm pushes the second pushing surface.
  • the pushing surfaces can each be situated at the end of a respective link, the other end of which is linked to the pulley, this other end being situated on one side of the axis of the pulley for one of the links. and diametrically opposite for the other link.
  • the rods comprise at this other end a rack cooperating with a toothed pinion in the center of the pulley, the two racks being diametrically opposite with respect to the axis of the pulley and the pinion, and the rods being mounted to slide, substantially in the general direction back and forth of the thrust arm, relative to a fixed frame carrying the axis of the pulley.
  • the means for deflecting the thrust arm preferably comprises a blade secured to the movable armature of an electromagnet, this blade having at one end a bevelled surface and being capable of taking, depending on whether the 'electromagnet is actuated or not, two positions, at least one of which brings the bevelled surface on the path of a part secured to the thrust arm to deflect the movement of the latter accordingly.
  • the drive arm drive means preferably comprise a shaft which rotates continuously and which carries a look of the push arm a pinion with interrupted teeth meshing with a rack provided on the arm, a return spring serving to bring it back to an initial position after each movement of this arm by the drive means.
  • the rotating shaft in principle causes more several thrust arms each corresponding to a pulley and the shaft then has gears with interrupted teeth facing each thrust arm or it is grooved over a length corresponding to several thrust arms.
  • FIG. 1 a weaving loom as it currently exists, and which comprises a series of warp threads 10 arranged parallel to each other and unwinding from a spool or "beam" 12 on which they have been previously wound at the weaving operation.
  • the warp threads side by side are brought into a flat sheet 14 at the location of the weaving, that is to say at the place where the successive weft threads are to be inserted perpendicular to the warp threads and passing over certain warp threads and below certain others so as to make an intertwining and interweaving of the weft threads and the warp threads; the configuration of this interlacing optionally varies with each weft thread inserted so that a desired weaving pattern can be produced by programming this interlacing.
  • Each weft thread inserted by a shuttle 16 is pressed against the already inserted threads, that is to say against the bottom of the sheet of fabric 18 already manufactured, by a weaving comb 20 which can move back and forth. rear longitudinally.
  • the fabric 18 produced is wound on another spool or "beams" 22.
  • a mechanical 24 for lifting warp yarns is provided which is capable of lifting each of the warp yarns individually and which is coupled to non-programming means shown who control this mechanism at each weaving step to choose which of the warp threads to lift at this step.
  • the weft thread is inserted between the raised warp threads and the non-raised warp threads.
  • each warp thread passes through an eyelet or mesh 28 fixed to a respective lifting wire (or yoke) 30, this lifting wire being hung from on one side to the lifting mechanism 24 and on the other side to a counterweight, spring or other tensioning means; each lifting wire 30 can be lifted individually by the mechanism 24 to lift the warp wire passing through its respective mesh 28.
  • the wire 30 passes below the pulley in a bore formed in a fixed guide 40 which comprises a series of such bores to correctly position side by side each of the lifting wires descending from a respective pulley.
  • This guide 40 replaces the upper drip board provided to date in Jacquard type lifting mechanisms.
  • the lifting wire 30 again passes through another fixed guide 42, drilled regularly as the guide 40 to also position the lifting wires at the bottom.
  • the thread tension system is designated by the reference 44.
  • Fig. 4 schematically represents the pulley in cross section.
  • This pulley in fact comprises in the present case practically only a little more than a quarter of a pulley taking into account the height of the wire which is to be lifted, which facilitates the insertion of means for driving the pulley at the level of the 'axis of it.
  • the pulley is in fact produced by two parallel flanges 46 and 48 between which is placed, around the axis 34 of the pulley, a toothed pinion 50 whose teeth are located between the flanges.
  • the groove 36 is produced by providing a part of circular shape 52 forming a spacer between the flanges 46 and 48.
  • the racks 54 and 56 have a shape of a thin plate, toothed at their end facing the crown 50, and they are inserted between the flanges 46 and 48, which is possible due to the fact that the pulley has not been s 'extends only over a portion slightly greater than a quarter of a circle, or more precisely because the part forming a spacer 52 and groove 36 extends only over this portion of slightly more than a quarter of a circle, the flanges themselves which can extend over an entire circular surface.
  • the radius of the groove 36 is chosen taking into account the height from which it is necessary to lift each warp thread (approximately 10 to 15 centimeters), so that a rotation of the pulley over an angle of approximately a quarter of a turn causes the lifting the wire to the desired height.
  • the means for rotating the pulley (racks 54 and 56) are arranged on the side of the pulley opposite the side where the lifting wire arrives on the pulley so that practically the lifting wire is completely located end (in the longitudinal direction of the warp threads) of the mechanical lifting element of this thread, the space beyond the point of tangency between the thread 30 and the pulley being left free for the possible passage of other warp threads.
  • the only elements protruding slightly beyond the wire 30 are on the one hand the end edges of the flanges 46 and 48 delimiting the groove 36, and on the other hand the end of the guide 40.
  • fig. 5 is shown how one could assemble side by side a plurality of pulleys 32 each corresponding to the lifting of a respective wire 30. All the pulleys are mounted on a common axis 34 which is carried by a frame 58 also carrying the guide 40
  • the frame 58 is a frame for a module comprising a number of pulleys juxtaposed with their respective individual rotational drive systems. This module is mounted on a general frame of the lifting mechanism, and in this case, the frame 58 comprises two flanges 60 each pierced with two openings for the passage of two transverse guides, one of which, 62 is visible in the view front of fig. 5, and the other 64 is visible in the other figures.
  • the module carried by a frame 58 is slidably mounted on the guides 62 and 64 and can therefore move parallel to the plane of the warp threads and perpendicular to the longitudinal direction of the latter.
  • the wire 30 shown in the low position here is hooked to the pulley 32 and passes through the guide 40 placed under the pulley, in a bore located in alignment with the vertical tangent to the groove 36 of the pulley.
  • the racks 54 and 56 for driving the pulley 32 are carried at the end of respective connecting rods 66 and 68 carrying horizontal guide grooves cooperating with guide pins linked to the fixed frame 60 carrying the pulley and its actuation mechanism , so that the links 66 and 68 can move parallel to one another and substantially perpendicular to the direction of arrival of the wire 30 while being placed on the other side of the pulley with respect to this wire 30.
  • the movements of the two rods 66 and 68 are completely linked to each other by means of the toothed ring of the pulley 32, and these movements are always in phase opposition, since the racks 54 and 56 mesh together. and on the other side of the toothed crown of the pulley.
  • the links 66 and 68 are constituted by thin plates which can penetrate between the flanges of the pulley 32. Their respective ends 70 and 72 on the side opposite to the pulley and to the racks 54 and 56 constitute thrust surfaces on which can come ' apply the end 14 of a thrust arm 76 capable of moving back and forth in the direction of guidance of the links 66 and 68.
  • the push arm 76 is guided by a groove 78 and a stud 80 to be able to move in this direction, but it can also oscillate in a direction transverse to this direction, under the effect of a means of deflection of the push arm , in order to be able to orient itself either in a position where its reciprocating movement brings its end 74 opposite the end 70 of the rod 66, without touching the end 72 of the rod 68, or in a position where its reciprocating movement brings its end 74 opposite the thrust surface 72 of the link 68 without touching the end 70 of the link 66.
  • a return spring 82 acts on the push arm 74 to permanently return it to one of the two positions, for example the first, so that if the arm deflection means is not actuated, it is the rod 66 which can be pushed back, while that if the arm deflection means is activated, it will act against the spring t 82 to move) 'e :: end 74 towards the thrust surface 72 of the link 68.
  • the reciprocating movement of the thrust arm 76 is caused by a drive shaft 84 which rotates continuously and which has at its periphery an interrupted toothing 86 capable of meshing with a toothed rack 88 provided on the arm of thrust 76, the arm 76 being subjected to the action of a return spring 90 bearing on the frame 60 and tending to keep it back, spaced from the thrust surfaces 70 and 72 of the rods.
  • the drive shaft 84 is of course synchronized with the step-by-step movement of the fabric and therefore of the means for passing the weft threads so that the thrust arm 74 undergoes a complete back-and-forth movement each time no weaving, one of the movements used for the possible lifting of a warp thread, and the other for the possible return of this warp thread.
  • two toothing portions 86 are provided, and the shaft 84 therefore makes a half-turn at each weaving pitch.
  • the means for deflecting the thrust arm 76 consist of an electromagnet 92, the movable armature 94 of which carries a blade 96 having at its end 98 a bevelled surface capable of taking, depending on whether the electromagnet is actuated or not. At least one brings the bevelled surface onto the path of a part 100 secured to the thrust arm in order to deflect the movement of the latter accordingly and bring its end 74 opposite one of the links 66 and 68.
  • the bevelled surface lowers the end 74 to bring it opposite the surface 72 of the lower link 68.
  • the arm thrust can only be applied against the thrust surface 70 of the upper link 66.
  • the part 100 forms a bridge over a sufficient distance above the end 98 of the blade 100 so that once this part 100 has engaged either above or below the end 98, it remains there for the entire duration of the path of the thrust arm in the direction of the rods, which makes it possible to energize the electromagnet only during the start of a back-and-forth cycle of the arm 76, in order to reduce the consumption of electrical energy by electromagnets during weaving cycles.
  • the pushing arm 76 like the links 66 and 68, is constituted by a thin plate to have as little lateral space as possible, and preferably the pushing arm including the part 100 which forms a bridge above the blade 98, has a thickness substantially of the order of the thickness of the pulley and is arranged in a plane aligned with that of the pulley.
  • the links 66 and 68 can be held by a bistable positioning system in the last position where they have been set by the push arm 76, so that at the next weaving pitch the rods remain in the same position without being actuated again by the push arm 76 if there is no need to change the position of the warp thread considered.
  • the bistable positioning system is simply constituted by a spring 102 fixed to the frame 60 and cooperating with notches 104 and 106 provided on at least one rod and defining the two angular positions that the pulley is capable of taking, lifting position or position of warp thread return; the end of the spring 102 is capable of engaging in one of the notches 104 and 106 and then exerts on the links sufficient friction in the longitudinal direction to prevent rotation of the pulley towards its other stable angular position, for example under the tension of the lifting wire 30.
  • Fig. shows a top view of a group of actuating mechanism elements of several pulleys 32 located side by side.
  • the pulleys and their respective mechanisms are preferably arranged in compact modules comprising, for example, twenty or thirty juxtaposed pulleys, all of the mechanism elements being rejected behind the pulleys, that is to say on the side opposite the side where the lifting wires 30 arrive.
  • the frame 58 already mentioned is the frame on which the various mechanism elements and the respective pulleys are mounted. It is preferably provided that this frame 58 is not fixed relative to the assembly of the mechanical structure but that, on the contrary, the modules can be moved laterally relative to each other: a row of mounted modules is formed. on parallel bars 62 and 64 already mentioned with reference to FIG. 5 and these modules can be slid on the bars so as to bring them closer or separate them from one another according to the density of warp threads desired for weaving.
  • the pulleys 32 of a module are all mounted on a common axis 34 so that the front edges of the pulleys are aligned and that all the lifting wires 30 lie in the same plane completely at the front of the module (only the front edge of the guide 40 projecting slightly beyond the plane of the wires 30 since these wires pass through the holes in the guide 40).
  • FIGS. 8a and 8b the manner in which the means for deflecting the thrust brake 76 is shown: in FIGS. 8a and 8b, the electromagnet is not energized and its movable armature falls into a position where the beveled end 98 is not on the path of the part 100 secured to the push arm. The latter therefore moves in a first direction towards which it is biased by its spring 82; in this direction it can come to touch the end of the upper link 66 but not that of the lower link 68.
  • FIGS. c and d the electromagnet is excited and the bevelled surface 98 of the movable armature comes into the path of the part 100 and forces the arm 76 to move down during its advance movement.
  • the links 66 and 68 may not act on a ring gear of the pulley but simply on an independent toothed ring located between the links 66 and 68 to secure their respective movements in phase opposition, the lifting wire 30 being hooked to the end of one of the links after having turned around the pulley at an angle about 90 °. It will be noted that it is then necessary to provide that the groove of the pulley extends over at least a half-circumference and preferably a complete circumference, whereas in the previous case a quarter of circumference was sufficient.
  • the pulley 32 is, in this latter embodiment where it simply serves as an angle gear, a fixed roller, for example made of Teflon, on which the lifting wire 30 can slide without friction by being pulled by a rod rejected behind the roller with respect to the arrival side of wire 30.
  • a roller having a groove extending over a quarter about circumference to allow the wire 30 to arrive in this groove vergically and to be returned horizontally to be hooked to one of the rods arriving in alignment with the direction of longitudinal movement thereof, a gear still being provided for securing in opposition in phase the movements of the two rods.
  • Fig. 9 shows the overall construction of the lifting mechanism for the warp threads 10 which arrive in web from the spool 12 and which are wound after weaving on a spool 22, each warp thread being able to be lifted by a respective descending lifting thread 30 lifting mechanics.
  • the lifting mechanism comprises a general frame 110 which essentially carries two mobile assemblies 112 and 114 each carrying a series of rows of modules of several mechanical elements for individual lifting of wires.
  • the lifting wires 30 are suspended from the pulleys of the modules of each series 112 and 114 and these lifting wires pass between the two mobile assemblies 112 and 114, the direction of mobility of the assemblies 112 and 114 relative to the other being the general direction of the warp threads and this mobility being provided simply to allow the assemblies to be separated from one another and to allow the passage of a man between the assemblies for the purpose of maintenance and repair of lifting wires and mechanical components.
  • the assembly 112 has been shown in dotted lines separated from the assembly 114, and in solid lines the assembly 112 close to the assembly 114.
  • the modules of the 112 and 114 series are turned in opposite directions, so that they face each other and that the lifting wires which are suspended from them lie well between the two mobile assemblies, the mechanical elements being rejected at outside the gap between the lifting wires facing each other.
  • Each mobile assembly comprises a series of several rows of modules such as those of FIG. 7, the rows being superimposed and each row comprising several modules carried by common parallel bars 62 and 64 on which the modules can slide as has already been said.
  • the superimposed rows of modules are offset slightly progressively with respect to each other in a direction parallel to the warp threads, the offset being made in the opposite direction for the two series of sets 112 and 114.
  • This offset is made in a direction such that the pulleys of a row have their feed side of lifting yarns immediately set back from the feed side of lifting yarns of the pulleys of the row immediately above.
  • the facing pulleys are close to each other at the top of the general frame 110 and they move apart progressively when descending, the pulleys of the lower row being the most spaced from each other in the direc tion of warp threads.
  • this progressive shift which can exist both in the case where a single set 112 is provided and in the case where two sets 112 and 114 are provided, is to ensure that not only the lifting wires are located not all in the same plane but in slightly offset planes which facilitate the separation of the wires from each other, but also that the wires coming from the upper rows do not fall on parts of the lifting mechanism of the wires from the rows which are at below, the shift is always in the same direction from one row to the row immediately below.
  • the progressive shift must not be too great from one row to the next row so as not to carry out too large a spread (in the direction of the warp threads) of the lifting points of the warp threads.
  • the progressive offset must however be sufficient to avoid any interference between the lifting wires coming from a row and the lifting wires coming from the immediately lower row: in particular, an offset must be provided at least sufficient for a lifting wire 30, passing through a guide 40 which corresponds to this wire, does not come to touch the front edge of a guide 40 (or the front edges of the flanges of the pulleys) of the row immediately below the row considered.
  • each of the facing assemblies can be provided on each of the facing assemblies, each row comprising 10 sliding modules and each module comprising 28 pulleys.
  • the invention makes it possible to further increase this number as well by increasing the number of modules juxtaposed laterally as by increasing the number of superimposed rows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (16)

1. Industrielle Webmaschine mit einem Vorschubsystem für mehrere Kettfäden (10), die in einer Ebene (14) angeordnet sind, mit einer Schaftmaschine zum wahlweisen Anheben (24) der ausgewählten Kettfäden, die an Programmiermittel zur Auswahl der zu hebenden Kettfäden angeschlossen ist, und einem System zum Einlegen (16) des Schußfadens zwischen die angehobenen Kettfäden und die Ebene der nicht angehobenen Kettfäden, wobei die Schaftmaschine zum Heben der Kettfäden mehrere gespannte Hebefäden beiderseits der Kettfädenebene aufweist, deren jener mit einer Öse (28) versehen ist, durch die ein entsprechender Kettfaden (10) läuft, dadurch gekennzeichnet, daß sich jeder Hebefaden (30) in der Nut (36) einer entsprechenden Seilscheibe (32) aufrollt, welche mit individuellen Verschiebemitteln (54, 56) versehen ist, die sie um einen Winkel drehen lassen, der der gewünschten Hubhöhe des Fadens (30) entspricht, dessen Ende in der Nut (36) befestigt ist, wobei diese Mittel (54, 56) von der Seite ausgehend zu der gegenüberliegenden Seite, wo der Hebefaden (30) auf der Seilscheibe (32) befestigt ist, angeordnet sind, und zwar in bezug auf die senkrechte Ebene, die durch die Achse dieser Seilscheibe läuft, und daß die Seilscheiben (32) in höhenmäßig abgestuften Reihen oberhalb der Ebene (14) der Kettfäden (10) angeordnet sind, wobei die aufeinanderfolgenden Reihen von einer Stufe zur anderen in zunehmendem Maße leicht verschoben sind.
2. Webmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Verschiebung der aufeinanderfolgenden Reihen in einer Richtung parallel zu den Kettfäden (10) erfolgt ist.
3. Webmaschine nach Anspruch 2, dadurch gekennzeichnet, daß zwei Gruppen von sich gegenüberliegenden Reihen vorgesehen sind, wobei die Seilscheiben (32) und ihre Verschiebemittel (54, 56) im umgekehrten Sinn zu den beiden Gruppen gedreht werden, daß die Zulaufseiten der Hebefäden (30) der Seilscheiben (32) der ersten Gruppe den Zulaufseiten der Hebefäden der zweiten Gruppe gegenüberliegen, und daß die aufeinanderfolgenden Verschiebungen der Seilscheibenreihen in Richtung der Kettfäden (10) für die entsprechenden Reihen der beiden Gruppen im entgegengesetzten Sinn stattfinden.
4. Webmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Antriebsmittel (34) für mehrere Seilscheiben (32) vorgesehen ist, und daß zwischen jeder Seilscheibe und dem Antriebsmittel Mittel (76-92) zum individuellen Kuppeln und Entkuppeln vorhanden sind, die die entsprechende Seilscheibe zum Anheben eines Kettfadens (10) in Umdrehung versetzen können, und daß die Gesamtheit der einzelnen Kupplungs- und Entkupplungsmittel durch Programmsteuermittel steuerbar ist.
5. Webmaschine nach Anspruch 4, dadurch gekennzeichnet, daß das Mittel (92) zum individuellen Kuppeln und Entkuppeln die Verschiebungsmittel (54, 56) mit der entsprechenden Seilscheibe (32) kuppeln kann, wobei es entweder die Seilscheibe (32) in einer ersten Richtung bis zu einer Hubstellung des Fadens (30) in Drehung versetzt oder das Drehen der Seilscheibe in einer zweiten Richtung bis zu einer Rückkehrstellung des Kettfadens (10) bewirkt, wobei die Auswahl durch die Programmsteuermittel erfolgt.
6. Webmaschine nach einem der Ansprüche 4 und 5, dadurch gekennzeichnet, daß ein System zur bistabilen Einstellung (102) der Seilscheibe (32) vorgesehen ist, um sie in einer von zwei Winkelstellungen zu halten, in die sie durch die Betätigung des Kupplungsmittels (92) gebracht worden ist, wobei nur eine neue Betätigung des Kupplungsmittels (92) in einem Verschiebungssinn der Seilscheibe in Richtung der anderen Winkelstellung geeignet ist, eine Drehung der Seilscheibe (32) zu bewirken.
7. Webmaschine nach Anspruch 6, dadurch gekennzeichnet, daß das System zur bistabilen Einstellung (102) wenigstens zwei Kerben (104, 106) oder Positionierungsanschläge für die Seilscheibe (32) oder Teile (54, 56) besitzt, die an die Drehung der Seilscheibe (32) gebunden sind, wobei die Kerben oder Anschläge mit einem festen Rahmen (58) zusammenwirken, um die beiden stabilen Winkelstellungen der Seilscheiben festzulegen, und daß zwischen dem Rahmen (58) und der Seilscheibe (32) oder den Teilen (54, 56), die an die Drehung der Seilscheibe (32) gebunden sind, ein Reibungsmittel (102) wirkt.
8. Webmaschine nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die Kupplungsmittel (76-92) einen Stoßarm (76) aufweisen, der einer Hin- und Herbewegung unterworfen wird mit einer Möglichkeit zum transversalen Hin- und Herschwingen, und daß ein Mittel (92) zum Ablenken des Arms vorgesehen ist, das durch die Programmsteuermittel betätigbar ist und zur Ausrichtung der Verschiebungsrichtung des Arms dient, wobei ferner zwei Stoßflächen (72, 70) in bezug auf das eine Ende (74) des Stoßarms (76) vorhanden sind, die an die Drehung der Seilscheibe (32) so gebunden sind, daß die Seilscheibe sich in einer Richtung dreht, wenn der Stoßarm (76) die erste Stoßfläche (72) zurückstößt, und die sich in der anderen Richtung dreht, wenn der Arm (76) die zweite Stoßfläche (70) zurückstößt.
9. Webmaschine nach Anspruch 8, dadurch gekennzeichnet, daß jede der Stoßflächen (72, 70) am Ende einer entsprechenden Stange (56, 54) angeordnet ist, deren anderes Ende mit der Seilscheibe verbunden ist, wobei dieses andere Ende für die eine Stange in Richtung auf die Achse (34) der Seilscheibe (32) angeordnet ist und diametral entgegengesetzt angeordnet ist für die andere Stange.
10. Webmaschine nach Anspruch 9, dadurch gekennzeichnet, daß die Stangen (54, 56) an dem genannten anderen Ende eine Zahnstange bilden, die mit einem Zahnradritzel (50) im Mittelpunkt der Seilscheibe (32) zusammenwirkt, wobei die beiden Zahnstangen in bezug auf die Achse (34) der Seilscheibe (32) und des Zahnradritzels (50) diametral gegenüberliegen und die Stangen leicht gleitend in Richtung der Hin- und Herbewegung des Stoßarms (76) in bezug auf einen festen Rahmen (58) gelagert sind, der die Achse (34) der Seilscheibe (32) trägt.
11. Webmaschine nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß die Ablenkmittel (92) einen Hebeschaft (96) aufweisen, der mit einem beweglichen Anker (94) eines Elektromagneten (92) fest verbunden ist, und der an seinem einen Ende eine abgeschrägte Oberfläche aufweist und je nachdem, ob der Elektromagnet erregt wird oder nicht, zwei Stellungen einnehmen kann, von denen wenigstens eine die abgeschrägte Oberfläche auf die Bahn eines Teils (100) führt, das mit dem Stoßarm fest verbunden ist, um dadurch eine Ablenkung der Bewegung des letzteren zu bewirken.
12. Webmaschine nach Anspruch 11, dadurch gekennzeichnet, daß der Stoßarm (76) der Wirkung einer Feder (82) ausgesetzt ist, die in Richtung der transversalen Schwingungen des Arms (76) wirkt, um ihn in eine Stellung zurückzuführen, welche einer der beiden Verschiebungsrichtungen seines Endes entspricht.
13. Webmaschine nach einem der Ansprüche 11 und 12, dadurch gekennzeichnet, daß der Elektromagnet (92) nur während eines Teils des Hin- und Herbewegungszyklus des Stoßarms (76) erregt wird, wobei seine Erregung unterbrochen wird, nachdem der Stoßarm endgültig in der Richtung in Eingriff gebracht ist, die dieser Erregung entspricht.
14. Webmaschine nach einem der Ansprüche 8 bis 13, dadurch gekennzeichnet, daß der Stoßarm (76) eine Zahnstange (88) aufweist, daß die Antriebsmittel eine sich ständig drehende Welle (84) aufweisen, die gegenüber der Zahnstange (88) des Stoßarms (76) ein unterbrochen verzahntes (86) Ritzelrad (84) trägt, und daß ein Mittel (90) zum Zurückholen des Arms (76) in eine Ausgangsstellung nach jeder durch die Antriebsmittel erfolgten Verschiebung des Arms vorhanden ist.
15. Webmaschine nach Anspruch 14, dadurch gekennzeichnet, daß das Rückführmittel des Stoßarms eine Feder (90) ist, die in Längsrichtung der Hin- und Herbewegung des Arms (76) wirkt und die ihre Wirkung entfaltet, sobald die Antriebswelle (84) in eine Stellung gelangt, in der die Zahnstange (88) des Arms (76) gegenüber der Unterbrechungszone der Verzahnung des Ritzelrades (84) der Welle liegt.
16. Webmaschine nach einem der Ansprüche 8 bis 15, dadurch gekennzeichnet, daß jede Seilscheibe (32) zwei parallele Flansche (46, 48) aufweist, und daß der Stoßarm (76) von einer Platte gebildet wird, die wesentlich dünner ist als die Seilscheibe dick ist und sich in einer Ebene befindet, die zwischen den flanschen der Seilscheibe liegt.
EP81900431A 1980-02-18 1981-02-17 Vorrichtung zum heben der kettfäden in einem webstuhl und mit einer solchen vorrichtung ausgerüsteter webstuhl Expired EP0045758B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MC801432A MC1319A1 (fr) 1980-02-18 1980-02-18 Systeme de commande de levee de fils de chaine d'un metier a tisser
MC1432 1980-02-18

Publications (2)

Publication Number Publication Date
EP0045758A1 EP0045758A1 (de) 1982-02-17
EP0045758B1 true EP0045758B1 (de) 1984-06-27

Family

ID=19738001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81900431A Expired EP0045758B1 (de) 1980-02-18 1981-02-17 Vorrichtung zum heben der kettfäden in einem webstuhl und mit einer solchen vorrichtung ausgerüsteter webstuhl

Country Status (8)

Country Link
US (1) US4440196A (de)
EP (1) EP0045758B1 (de)
JP (1) JPS57500112A (de)
BE (1) BE887551A (de)
DE (1) DE3164357D1 (de)
IT (1) IT1135517B (de)
MC (1) MC1319A1 (de)
WO (1) WO1981002312A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0385483U (de) * 1989-12-19 1991-08-29
DE69500352D1 (de) * 1994-01-26 1997-07-24 Danilo Jaksic Jacquardmaschine
FR2772796B1 (fr) * 1997-12-24 2000-01-28 Staubli Sa Ets Procede de montage d'un element funiculaire, dispositif de formation de la foule et metier a tisser
FR2772792B1 (fr) * 1997-12-24 2000-01-28 Staubli Sa Ets Boitier de positionnement d'actionneurs electriques pour la formation de la foule et metier a tisser
FR2772794B1 (fr) * 1997-12-24 2000-01-28 Staubli Sa Ets Mecanique d'armure du type jacquard et metier a tisser equipe d'une telle mecanique
DE19855709B4 (de) * 1998-12-03 2008-01-24 Helmut Hechinger Gmbh & Co. Führungsstangen für eine Jacquard-Webeinrichtung
EP1016743B1 (de) * 1998-12-09 2003-04-16 Sultex AG Einrichtung zum gesteuerten Bewegen eines Kettfadens
DE59905063D1 (de) 1998-12-09 2003-05-22 Sultex Ag Rueti Einrichtung zum gesteuerten Bewegen eines Kettfadens
DE10326757A1 (de) * 2003-06-13 2005-01-13 Bst Berger Safety Textiles Gmbh & Co. Kg Verfahren zur Herstellung eines Luftsacks
SE533266C2 (sv) * 2008-12-16 2010-08-03 Texo Ab Vävmaskin med modulariserad drivning
US9079558B2 (en) 2009-01-16 2015-07-14 Global Safety Textiles, Llc Coated airbag

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1633475A (en) * 1927-06-21 carver
US1511456A (en) * 1922-08-10 1924-10-14 Fuchs Leopold Support for loom harness
US2136090A (en) * 1936-10-02 1938-11-08 Lefier Patent Company Inc Textile machine
US2136076A (en) * 1936-11-13 1938-11-08 Lefler Patent Company Inc Pattern control mechanism
US2609840A (en) * 1947-09-02 1952-09-09 Lawrence Atkins S Loom
US3867966A (en) * 1971-10-16 1975-02-25 Sulzer Ag Electro-mechanical device for forming a shed in a weaving machine
BE790077A (fr) * 1971-10-16 1973-04-13 Sulzer Ag Dispositif electromecanique de formation de la foule de metiersa tisse
DE2904367C3 (de) * 1979-02-06 1982-01-07 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Elektromagnetisch arbeitende Jacqard-Steuervorrichtung
DE3006637A1 (de) * 1979-05-18 1980-11-20 Sulzer Ag Jacquardeinrichtung, insbesondere fuer kettenwirkmaschinen

Also Published As

Publication number Publication date
BE887551A (fr) 1981-06-15
IT8119825A0 (it) 1981-02-18
WO1981002312A1 (fr) 1981-08-20
EP0045758A1 (de) 1982-02-17
DE3164357D1 (en) 1984-08-02
JPS57500112A (de) 1982-01-21
US4440196A (en) 1984-04-03
MC1319A1 (fr) 1981-03-10
IT1135517B (it) 1986-08-27

Similar Documents

Publication Publication Date Title
EP0045758B1 (de) Vorrichtung zum heben der kettfäden in einem webstuhl und mit einer solchen vorrichtung ausgerüsteter webstuhl
EP2087157B1 (de) System zum erweben eines kontinuierlichen winkels
EP1163385B1 (de) Schräges gewebe, verfahren und webmaschine zur kontinuierlichen herstellung eines solchen gewebes
EP2087156B1 (de) Gewebe mit dreidimensional ausgestalteter oberfläche
FR1465855A (fr) Tissu à bouclettes de poil sur les deux faces
EP0045759B1 (de) Einrichtung zum öffnen des faches an einer webmaschine
FR2476697A1 (fr) Procede et dispositif pour la fabrication de tissus
EP0570318B1 (de) Verfahren zum Weben von dicker Armierung mit mehreren nicht-ablösbaren Schichten für Verbundmaterialien und Webmaschine für die Fabrikation
EP1975291A1 (de) Webmaschine und Webverfahren für einschichtig hergestellten Schlaufenflorgewebe
EP0536029B1 (de) Verfahren und Maschine zur Herstellung von gewebten faserförmigen Armierungen
FR2785914A1 (fr) Dispositif d'amenee d'une couche de fils multicouche, multi-axiale a l'emplacement de tricotage d'un metier a tricoter chaine
EP0127184A1 (de) Webmaschine
EP0082794B1 (de) Vorrichtung zur Herstellung eines aus parallelen Fäden gebildeten Vlieses und Verfahren zur Herstellung von verschiedenen zusammengesetzten, ein solches Vlies enthaltenden Produkten
FR2524015A1 (fr) Dispositif pour inserer des fils de chaine dans des lices a tisser et lamelles appretees
FR2629480A1 (fr) Metier a tisser a ratiere
CH577575A5 (en) Rapier loom - in which weft threads are carried on vertical flexible tapes with reed and finger supports
BE418115A (de)
FR3105271A1 (fr) Métier à tisser du velours
FR2735796A1 (fr) Metier a tisser le velours faconne de soierie
WO1998018987A1 (fr) Dispositif de selection de fils de trame pour un metier a tisser
FR2549103A1 (fr) Machine pour la fabrication de tissus a mailles et a tissage
BE482244A (de)
EP0084471A1 (de) Schnelldrehende schützenlose Webmaschine
CH310218A (fr) Métier à tisser.
CH237769A (fr) Procédé de tissage, métier pour la mise en oeuvre de ce procédé et tissu obtenu par ce procédé.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811012

AK Designated contracting states

Designated state(s): CH DE FR GB

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE FR GB LI

REF Corresponds to:

Ref document number: 3164357

Country of ref document: DE

Date of ref document: 19840802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19850228

Ref country code: CH

Effective date: 19850228

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19861031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19861101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118