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EP0494127A1 - Spring assembly for dobbies and other negative weaving device - Google Patents

Spring assembly for dobbies and other negative weaving device Download PDF

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Publication number
EP0494127A1
EP0494127A1 EP92420002A EP92420002A EP0494127A1 EP 0494127 A1 EP0494127 A1 EP 0494127A1 EP 92420002 A EP92420002 A EP 92420002A EP 92420002 A EP92420002 A EP 92420002A EP 0494127 A1 EP0494127 A1 EP 0494127A1
Authority
EP
European Patent Office
Prior art keywords
springs
pads
movable clip
register
registers
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.)
Granted
Application number
EP92420002A
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German (de)
French (fr)
Other versions
EP0494127B1 (en
Inventor
Jean-Paul Froment
André Fumex
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.)
Staubli Faverges SCA
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Staubli Faverges SCA
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Publication date
Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0494127A1 publication Critical patent/EP0494127A1/en
Application granted granted Critical
Publication of EP0494127B1 publication Critical patent/EP0494127B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/144—Features common to dobbies of different types linking to the heald frame

Definitions

  • the present invention relates to dobbies and other weaving mechanics of the negative type for the formation of the crowd on weaving machines, and it relates more particularly to the registers of springs which, in this kind of mechanics, ensure the recall of the frames of smooth operated with the latter.
  • each register is thus stretched during the positive control of the frame by the dobby or other mechanical (control which is most often carried out with the lowering), and, by elastic traction on the corresponding cable, bring back said frame in the initial position (high position in the case considered).
  • the invention consists essentially in having at the ends of the movable clip linked to the operating cable two lateral pads which are oriented parallel to the springs and whose thickness is slightly greater than the diameter of the latter so that the pads of the staples of two adjacent registers can rub against each other avoiding any contact between the springs attached to said staples .
  • FIG. 1 is a schematic elevational view showing the arrangement of a spring register established in accordance with the invention.
  • Fig. 2 illustrates in perspective the mounting of one of the two lateral pads of the register according to FIG. 1.
  • Fig. 3 shows, with vertical cutaway, the guidance provided by the pads of four contiguous registers.
  • Fig. 4 illustrates a variant of the method of fixing the pads on the staples.
  • the register shown in 1 in fig. 1 comprises a series or ply of springs 2 hung vertically between two staples 3 and 4.
  • the lower staple 3 of each register is fixed to a rack 5 secured to the vertical structure 6 of the weaving machine, while the upper staple 4, provided movable, is attached to a cable 7.
  • the latter is linked at 8 a to a return lever 8 mounted to oscillate on an axis 9 carried by the structure 6, and it is laterally made integral with a heald frame 10 before hanging onto the corresponding movable member of a dobby or other mechanical of the negative type.
  • the upper clip 4 comprises at each of its ends, beyond the series of openings 4 is intended for the attachment of the folded end 2a of springs 2, a vertical back 4b pierces two superimposed holes 4 c .
  • Each return 4b is adapted to be engaged vertically in the upper forked end 11a of a skate 11, the fixing in place of the latter being effected with the aid of two rivets 12 inserted in the above-mentioned holes 4 c and in corresponding holes 11 b made in the forked end 11 a of the shoe 11 considered.
  • the pads 11 are made of a synthetic material promoting sliding and they are made at a thickness slightly greater than the diameter of the springs 2, so that as shown in FIG. 3, their lateral faces come into contact with the lateral faces of the pads of the contiguous registers 1.
  • the pads 11 of all of the registers 1 guide the movable staples 4 during the alternating vertical displacements of the frames 10 of the loom, thereby opposing the effects of cable twisting and by in any event prohibiting any untimely friction of the springs 2 of two adjacent registers.
  • each shoe 11 can vary to a large extent, depending in particular on the amplitude of the stroke of the spring registers. It goes without saying that one can imagine any other method of fixing the pads 11 on the ends of the movable staples, in particular that illustrated in FIG. 4 where it is assumed that the return 4 ′ b of the clip 4 ′ considered was profiled so as to snap elastically inside a conjugate opening 11 ′ a provided in the upper end of each shoe 11 ′.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Clamps And Clips (AREA)
  • Springs (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Package Frames And Binding Bands (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'agrafe mobile (4) du registre qui est fixée au câble de manoeuvre (7) est équipée de deux patins latéraux (11) qui assurent le guidage des agrafes adjacentes et qui interdit tout frottement nuisible entre les ressorts (2) de deux registres voisins sous l'effet du vrillage des câles. <IMAGE>The movable clip (4) of the register which is fixed to the operating cable (7) is equipped with two lateral pads (11) which guide the adjacent clips and which prevents any harmful friction between the springs (2) of two registers neighbors under the effect of the twists of the huts. <IMAGE>

Description

La présente invention a trait aux ratières et autres mécaniques de tissage du type négatif pour la formation de la foule sur les machines à tisser, et elle concerne plus particulièrement les registres de ressorts qui, dans ce genre de mécaniques, assurent le rappel des cadres de lisses manoeuvrés à l'aide de ces dernières.The present invention relates to dobbies and other weaving mechanics of the negative type for the formation of the crowd on weaving machines, and it relates more particularly to the registers of springs which, in this kind of mechanics, ensure the recall of the frames of smooth operated with the latter.

On sait qu'effectivement les mécaniques du type négatif n'opèrent la commande positive des cadres de lisses que dans un seul sens de la course alternative de ceux-ci, si bien qu'il y a lieu de prévoir des moyens élastiques agencés de manière à opérer le rappel desdits cadres à l'autre extrémité de la course. Ces moyens élastiques sont le plus souvent constitués par deux registres formés par des ressorts parallèles retenus entre deux agrafes d'attache dont l'une est montée à poste fixe sur une console ou ratelier solidaire de la structure du métier, tandis que l'autre est accrochée à l'extrémité de l'un des câbles prévus pour la manoeuvre de chaque cadre.We know that indeed the mechanics of the negative type operate the positive control of the heald frames in only one direction of the alternative course of the latter, so that it is necessary to provide elastic means arranged so to operate the recall of said frames at the other end of the race. These elastic means are most often constituted by two registers formed by parallel springs retained between two fastening clips, one of which is mounted on a fixed post on a console or rack integral with the structure of the loom, while the other is attached to the end of one of the cables provided for the operation of each frame.

On conçoit que les ressorts de chaque registre sont ainsi étirés lors de la commande positive du cadre par la ratière ou autre mécanique (commande qui s'effectue le plus souvent à l'abaissement), et, par traction élastique sur le câble correspondant, ramènent ledit cadre à la position initiale (position haute dans le cas considéré).It is understood that the springs of each register are thus stretched during the positive control of the frame by the dobby or other mechanical (control which is most often carried out with the lowering), and, by elastic traction on the corresponding cable, bring back said frame in the initial position (high position in the case considered).

Il convient ici d'observer que les efforts fournis par les registres sont très élevés, au moins lorsque ces registres sont associés à des cadres de lisses de grande largeur pour la manoeuvre de nappes de fils de chaîne très raides, de sorte que les câbles tendent à se vriller sous la charge des ressorts. Or tout effet de vrillage des câbles provoque la mise en contact et le frottement mutuel d'une part des agrafes mobiles du paquet de registres montés côte à côte sur le même côté de l'ensemble des cadres, d'autre part et surtout des ressorts eux-mêmes. Ces frottements intempestifs sont la cause fréquente de la rupture des ressorts.It should be noted here that the forces provided by the registers are very high, at least when these registers are associated with heald frames of large width for the operation of very stiff plies of warp son, so that the cables tend to twist under the load of the springs. However, any twisting effect of the cables causes contacting and mutual friction on the one hand of the movable clips of the packet of registers mounted side by side on the same side of all the frames, on the other hand and above all of the springs themselves. These untimely friction are the common cause of spring failure.

C'est à cet inconvénient qu'entend principalement remédier la présente invention, laquelle a pour objet le registre de ressorts qui est défini à la revendication 1.It is to this disadvantage that the present invention mainly intends to remedy, which relates to the spring register which is defined in claim 1.

En fait l'invention consiste essentiellement à faire comporter aux extrémités de l'agrafe mobile liée au câble de manoeuvre deux patins latéraux qui sont orientés parallèlement aux ressorts et dont l'épaisseur est légèrement supérieure au diamètre de ceux-ci afin que les patins des agrafes de deux registres adjacents puissent venir frotter l'un contre l'autre en évitant tout contact entre les ressorts accrochés auxdites agrafes.In fact, the invention consists essentially in having at the ends of the movable clip linked to the operating cable two lateral pads which are oriented parallel to the springs and whose thickness is slightly greater than the diameter of the latter so that the pads of the staples of two adjacent registers can rub against each other avoiding any contact between the springs attached to said staples .

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caracteristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:

-Fig. 1 est une vue schématique en élévation montrant l'agencement d'un registre de ressorts établi conformément à l'invention.-Fig. 1 is a schematic elevational view showing the arrangement of a spring register established in accordance with the invention.

Fig. 2 illustre en perspective le montage de l'un des deux patins latéraux du registre suivant fig. 1.Fig. 2 illustrates in perspective the mounting of one of the two lateral pads of the register according to FIG. 1.

Fig. 3 représente, avec arrachement vertical, le guidage assuré par les patins de quatre registres contigus.Fig. 3 shows, with vertical cutaway, the guidance provided by the pads of four contiguous registers.

Fig. 4 illustre une variante du mode de fixation des patins sur les agrafes.Fig. 4 illustrates a variant of the method of fixing the pads on the staples.

Le registre representé en 1 en fig. 1 comprend une série ou nappe de ressorts 2 accrochés verticalement entre deux agrafes 3 et 4. L'agrafe inférieure 3 de chaque registre est fixée à un ratelier 5 solidaire de la structure verticale 6 de la machine à tisser, tandis que l'agrafe superieure 4, prévue mobile, est attachée à un câble 7. Ce dernier est lié en 8a à un levier de renvoi 8 monté à oscillation sur un axe 9 porté par la structure 6, et il est latéralement rendu solidaire d'un cadre de lisses 10 avant de s'accrocher à l'organe mobile correspondant d'une ratière ou autre mécanique du type négatif.The register shown in 1 in fig. 1 comprises a series or ply of springs 2 hung vertically between two staples 3 and 4. The lower staple 3 of each register is fixed to a rack 5 secured to the vertical structure 6 of the weaving machine, while the upper staple 4, provided movable, is attached to a cable 7. The latter is linked at 8 a to a return lever 8 mounted to oscillate on an axis 9 carried by the structure 6, and it is laterally made integral with a heald frame 10 before hanging onto the corresponding movable member of a dobby or other mechanical of the negative type.

Conformément à l'invention et comme plus particulièrement illustre en fig. 2 et 3, l'agrafe supérieure 4 comporte à chacune de ses extrémités, au-delà de la série d'ouvertures 4a destinées à l'accrochage de l'extrémité repliée 2a des ressorts 2, un retour vertical 4b perce de deux trous superposés 4c. Chaque retour 4b est propre à être engagé verticalement dans l'extrémité superieure fourchue 11a d'un patin 11, la fixation en place de ce dernier étant opérée à l'aide de deux rivets 12 introduits dans les trous 4c sus-mentionnes et dans des trous correspondants 11b pratiqués dans l'extrémité fourchue 11a du patin 11 considéré.In accordance with the invention and as more particularly illustrated in FIG. 2 and 3, the upper clip 4 comprises at each of its ends, beyond the series of openings 4 is intended for the attachment of the folded end 2a of springs 2, a vertical back 4b pierces two superimposed holes 4 c . Each return 4b is adapted to be engaged vertically in the upper forked end 11a of a skate 11, the fixing in place of the latter being effected with the aid of two rivets 12 inserted in the above-mentioned holes 4 c and in corresponding holes 11 b made in the forked end 11 a of the shoe 11 considered.

Les patins 11 sont réalises en une matière synthétique favorisant le glissement et ils sont établis à une épaisseur légèrement supérieure au diamètre des ressorts 2, si bien que comme montre en fig. 3, leurs faces latérales viennent au contact des faces latérales des patins des registres 1 contigus.The pads 11 are made of a synthetic material promoting sliding and they are made at a thickness slightly greater than the diameter of the springs 2, so that as shown in FIG. 3, their lateral faces come into contact with the lateral faces of the pads of the contiguous registers 1.

On conçoit dans ces conditions que les patins 11 de l'ensemble des registres 1 assurent le guidage des agrafes mobiles 4 au cours des déplacements verticaux alternatifs des cadres 10 du métier, en s'opposant de la sorte aux effets de vrillage des câbles et en interdisant en tout état de cause tout frottement intempestif des ressorts 2 de deux registres adjacents.It is therefore conceivable that the pads 11 of all of the registers 1 guide the movable staples 4 during the alternating vertical displacements of the frames 10 of the loom, thereby opposing the effects of cable twisting and by in any event prohibiting any untimely friction of the springs 2 of two adjacent registers.

Les essais ont démontré que l'adoption des patins 11 diminuait de manière très sensible la fréquence des ruptures accidentelles des ressorts 2 des différents registres 1 d'une machine à tisser.Tests have shown that the adoption of the pads 11 very significantly reduces the frequency of accidental ruptures of the springs 2 of the different registers 1 of a weaving machine.

La hauteur présentée par chaque patin 11 peut varier dans une large mesure, en fonction notamment de l'amplitude de la course des registres de ressorts. Il va en outre de soi qu'on peut imaginer tout autre mode de fixation des patins 11 sur les extrémités des agrafes mobiles, notamment celui illustre en fig. 4 où l'on a suppose que le retour 4′b de l'agrafe 4′ considérée était profile de façon à venir s'encliqueter élastiquement à l'intérieur d'une ouverture conjuguée 11′a prévue dans l'extrémité supérieure de chaque patin 11′ .The height presented by each shoe 11 can vary to a large extent, depending in particular on the amplitude of the stroke of the spring registers. It goes without saying that one can imagine any other method of fixing the pads 11 on the ends of the movable staples, in particular that illustrated in FIG. 4 where it is assumed that the return 4 ′ b of the clip 4 ′ considered was profiled so as to snap elastically inside a conjugate opening 11 ′ a provided in the upper end of each shoe 11 ′.

Claims (3)

Registre de ressorts pour ratières et autres mécaniques de tissage du type négatif, comprenant une série de ressorts (2) tendus entre une agrafe fixe (3) et une agrafe mobile (4) attachée à l'extrémité d'un câble (7) pour la manoeuvre d'un cadre de lisses (10), caractérisé en ce que les extrémités de l'agrafe mobile (4) sont équipées de patins (11) qui s'étendent parallèlement aux ressorts (2) et dont l'épaisseur est légèrement supérieure au diamètre de ces derniers afin que les patins contigus de deux agrafes adjacentes puissent venir frotter l'un contre l'autre en interdisant tout contact entre les ressorts qui leurs sont associés.Register of springs for dobby and other weaving mechanics of the negative type, comprising a series of springs (2) stretched between a fixed clip (3) and a movable clip (4) attached to the end of a cable (7) for the operation of a heald frame (10), characterized in that the ends of the movable clip (4) are fitted with pads (11) which extend parallel to the springs (2) and whose thickness is slightly greater than the diameter of the latter so that the contiguous pads of two adjacent clips can rub against one another, preventing any contact between the springs associated with them. Registre suivant la revendication 1, caractérisé en ce qu'au niveau de chacune de ses extrémités, l'agrafe mobile (4) comporte un retour transversal (4b) propre à venir s'engager et se fixer dans l'extrémité correspondante (11a) en forme de fourche du patin (11) conjugué.Register according to claim 1, characterized in that at each of its ends, the movable clip (4) has a transverse return (4 b ) suitable for engaging and fixing in the corresponding end (11 a ) fork-shaped skid (11) conjugate. Registre suivant la revendication 1, caractérisé en ce que chacune des extrémités (4′b) de l'agrafe mobile (4′) est profilée pour s'encliqueter élastiquement à l'intérieur d'une ouverture conjuguée (11′a) prévue dans l'extrémité correspondante du patin (11′).Register according to claim 1, characterized in that each of the ends (4 ′ b ) of the movable clip (4 ′) is profiled to snap into place inside a conjugate opening (11 ′ a ) provided in the corresponding end of the shoe (11 ′).
EP92420002A 1991-01-04 1992-01-02 Spring assembly for dobbies and other negative weaving device Expired - Lifetime EP0494127B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9100174 1991-01-04
FR9100174A FR2671358B1 (en) 1991-01-04 1991-01-04 REGISTRY OF SPRINGS FOR RATIERS AND OTHER NEGATIVE WEAVING MECHANICS.

Publications (2)

Publication Number Publication Date
EP0494127A1 true EP0494127A1 (en) 1992-07-08
EP0494127B1 EP0494127B1 (en) 1994-11-30

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ID=9408531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420002A Expired - Lifetime EP0494127B1 (en) 1991-01-04 1992-01-02 Spring assembly for dobbies and other negative weaving device

Country Status (5)

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US (1) US5176182A (en)
EP (1) EP0494127B1 (en)
DE (1) DE69200715T2 (en)
ES (1) ES2065765T3 (en)
FR (1) FR2671358B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016585A (en) * 2012-12-17 2013-04-03 常熟市兴隆虹桥纺织木器厂 Side twisting tension spring for loom

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071764A1 (en) * 1981-08-07 1983-02-16 Gebrüder Schmeing Guide cam for shaft rods of heald frames
EP0325547A1 (en) * 1988-01-20 1989-07-26 S.A. DES ETABLISSEMENTS STAUBLI (France) Draw system to control the heddle frames of a negative dobby

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163441A (en) * 1983-02-28 1984-09-14 村田機械株式会社 Heald frame lifting apparatus
JPH03243355A (en) * 1990-02-21 1991-10-30 Fujitsu General Ltd Video printer density gradation selection device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071764A1 (en) * 1981-08-07 1983-02-16 Gebrüder Schmeing Guide cam for shaft rods of heald frames
EP0325547A1 (en) * 1988-01-20 1989-07-26 S.A. DES ETABLISSEMENTS STAUBLI (France) Draw system to control the heddle frames of a negative dobby

Also Published As

Publication number Publication date
DE69200715D1 (en) 1995-01-12
ES2065765T3 (en) 1995-02-16
EP0494127B1 (en) 1994-11-30
FR2671358A1 (en) 1992-07-10
FR2671358B1 (en) 1993-04-23
US5176182A (en) 1993-01-05
DE69200715T2 (en) 1995-06-29

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