EP0045759B1 - Dispositif perfectionne d'ouverture du pas sur un metier a tisser - Google Patents

Dispositif perfectionne d'ouverture du pas sur un metier a tisser Download PDF

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Publication number
EP0045759B1
EP0045759B1 EP81900432A EP81900432A EP0045759B1 EP 0045759 B1 EP0045759 B1 EP 0045759B1 EP 81900432 A EP81900432 A EP 81900432A EP 81900432 A EP81900432 A EP 81900432A EP 0045759 B1 EP0045759 B1 EP 0045759B1
Authority
EP
European Patent Office
Prior art keywords
plate
heald
heald shafts
shafts
electromagnets
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
EP81900432A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0045759A1 (fr
Inventor
Paul Sage
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 EP0045759A1 publication Critical patent/EP0045759A1/fr
Application granted granted Critical
Publication of EP0045759B1 publication Critical patent/EP0045759B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types

Definitions

  • the present invention relates to improvements made to the devices for opening the step of a loom for shaped fabrics and more particularly, although not exclusively, for silk fabrics.
  • the improvements which are the subject of the present invention aim to allow the realization of a device for controlling warp threads on a weaving loom in order to operate the opening of the pitch from information coming from perforated paper, a magnetic strip or the like whose size is reduced so that it can control a very large number of heddles arranged vertically close to each other, its cost remaining fairly low.
  • the invention also relates to a device of the type in question which can be divided into modules which can be separated from one another so that if the density of warp threads in the fabric is reduced it is possible to eliminate a certain number of modules without having to disassemble the entire harness.
  • a device of the type in question which can be divided into modules which can be separated from one another so that if the density of warp threads in the fabric is reduced it is possible to eliminate a certain number of modules without having to disassemble the entire harness.
  • the beams do not all have a vertical orientation, they are on the contrary slightly oblique but without this inclination playing an unfavorable role relative to the crowd in the open position.
  • Document FR-A-1 554 517 discloses a device for controlling warp threads in a weaving loom in order to operate the opening of the pitch by means of heddles from given information.
  • a perforated paper or the like (jacquard) of the kind comprising a mechanism for selecting blades associated with the beams which are resiliently recalled, in which device the blades pass through a first element provided with bars as well as a second plate provided with perforations, these blades each carrying a shoe and a hook, said shoe pressing against the plate so that the translation of the latter causes the beams to descend, while the bars of the first element grip the hooks of the selected blades, means being provided for release the hooks of the unselected blades.
  • Document DE-A-1 906 109 also discloses a device for opening the pitch on a weaving loom, comprising rods passing through plates and which include lateral heels.
  • the assembly is axially movable so that heels and notches of said rods cooperate with the hooks and immobilization systems with elastic finger.
  • the first plate moves in the opposite direction from the second, the deformation of the elastic blades between the second plate and a box spring which they also pass through in order to be held between them, causing the hooks to escape. blades not selected with respect to the bars so that these blades move with the second plate thanks to the elastic support of their shoes on said plate while the absence of deformation of the blades results in their hooks being gripped by the corresponding bars , so that the unselected beams are lowered respectively and the others are raised.
  • a device in the closed position of the crowd.
  • This device comprises a harness composed of a number of heddles 1 in the eyelets 1a from each of which passes a warp thread 2.
  • the upper end of each of the heddles 1 is associated with an arch 3, while its lower end is connected to the frame by means of elastic bands referenced 0 or other similar devices.
  • the arches have vertical parts 3a and horizontal parts 3b thanks to the presence of return pulleys 4.
  • the end of the horizontal part 3b of each arch is associated with a metal blade 5 carrying a shoe 6 and a hook 7.
  • each blade opposite to that which is joined to the arch is free, but it is supported by a perforated base 8 in which the blades slide freely.
  • Each of the blades still passes through a first plate 9 provided with bars 10 with the underside of which the blades are in support. The latter also pass freely through the perforations 11 a of a second plate 11.
  • the first plate 9 is used to lift the healds 1, while the second 11 is intended to allow their lowering.
  • the first plate 9 comprises actuating rods 12 guided by bearings 13 and which are articulated by one of their ends to said plate, while their opposite end is associated with a cam 14 by means of a roller 15 circulating in a groove 14a of this cam. The latter is arranged so that by turning it causes a displacement x to the right in FIG. 1 of tray 9.
  • the plate 11 is associated with operating rods 16 passing through guides 17 and one of whose ends is articulated to the plate in question while the other carries a roller 18 which cooperates with a groove 19a formed in a cam 19.
  • the rotation thereof causes a translation y to the left of the plate 11 for reasons which will be better explained below.
  • x y.
  • the bed base 8 supports electromagnets 20 arranged at the end of straight supports 21.
  • the plate 23 is raised so that the blades not retained by the electromagnets return to the position illustrated in FIG. 5. Thanks to the plate 23, it is thus possible to reduce the power of the electromagnets which no longer have to perform the call for the blades but only their retention. This is also an important safety factor.
  • the lift 9 and drop 11 plates ensuring the movement of the elastic blades can be moved parallel to themselves as illustrated in FIG. 8 in order to obtain a leveled crowd or else they can be in their extreme position in an oblique position as illustrated in FIG. 9 which leads to an oblique crowd.
  • the plates have been provided vertical for accessibility reasons because this arrangement allows the user to easily change a defective blade or arch without having to dismantle the entire harness. It goes without saying that the plates in question could be provided horizontal, this position causing the removal of the pulleys 4.
  • the device could be split, that is to say that the plates 9, 11, the plate 23 and the bed base 8 would be produced in the form of modules of small width mounted on slides. We could thus eliminate certain modules and the corresponding part of the harness when the density of the warp threads is reduced.
  • each blade has a projection or hump 5a which abuts against the corresponding bar 10 of the first plate 9.
  • the plate 11 is in its extreme position (to the right in the figures considered) it brings the bump 5a into contact with the bar 10 to press the blade against the electromagnet 20, since said plate drives the shoe 6 to the right.
  • a device for opening the pitch of warp threads in a weaving loom has thus been produced, making it possible to obtain a fabric shaped with very fine patterns and which has remarkable reliability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Closed-Circuit Television Systems (AREA)
EP81900432A 1980-02-22 1981-02-17 Dispositif perfectionne d'ouverture du pas sur un metier a tisser Expired EP0045759B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8004281 1980-02-22
FR8004281A FR2476694A1 (fr) 1980-02-22 1980-02-22 Dispositif perfectionne d'ouverture du pas sur un metier a tisser

Publications (2)

Publication Number Publication Date
EP0045759A1 EP0045759A1 (fr) 1982-02-17
EP0045759B1 true EP0045759B1 (fr) 1984-08-15

Family

ID=9239024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81900432A Expired EP0045759B1 (fr) 1980-02-22 1981-02-17 Dispositif perfectionne d'ouverture du pas sur un metier a tisser

Country Status (8)

Country Link
US (1) US4416310A (enrdf_load_stackoverflow)
EP (1) EP0045759B1 (enrdf_load_stackoverflow)
JP (1) JPH0372732B2 (enrdf_load_stackoverflow)
BE (1) BE887591A (enrdf_load_stackoverflow)
DE (1) DE3165478D1 (enrdf_load_stackoverflow)
FR (1) FR2476694A1 (enrdf_load_stackoverflow)
IT (1) IT1135534B (enrdf_load_stackoverflow)
WO (1) WO1981002434A1 (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823935A (ja) * 1981-07-28 1983-02-12 村田機械株式会社 織機のタテ糸開口装置
DE3233547A1 (de) * 1982-09-10 1984-03-15 Fa. Oskar Schleicher, 4050 Mönchengladbach Fachbildevorrichtung fuer textilmaschinen, insbesondere webmaschinen
FR2535742A1 (fr) * 1982-11-04 1984-05-11 Verdol Sa Mecanique d'armure a selection perfectionnee des crochets
GB8306813D0 (en) * 1983-03-11 1983-04-20 Bonas Machine Co Heald control apparatus
FR2562100B1 (fr) * 1984-03-30 1986-08-08 Ecole Nale Sup Arts Ind Textil Dispositif electromecanique permettant la commande numerique directe d'une mecanique jacquard
GB8432476D0 (en) * 1984-12-21 1985-02-06 Bonas Machine Co Heald rod retention device
EP0219545B1 (en) * 1985-04-19 1993-09-15 Wilcom Proprietary Limited Jacquard emulator
SE8503794L (sv) * 1985-08-14 1987-02-15 William E N Lauritsen Anordning for individuell styrning av oscillerande rorelser hos platiner, solv, nalar eller liknande tradforingsorgan i en snabbgaende textilmaskin
DE3607530A1 (de) * 1986-03-07 1987-09-17 Langendorf Gmbh Wilhelm Jacquard-maschine
US5183081A (en) * 1992-02-07 1993-02-02 Asten Group, Inc. Weave shed formation apparatus for end reweaving type joining apparatus
FR2736659B1 (fr) * 1995-07-13 1997-10-17 Tis Dispositif pour la selection de crochets dans une mecanique d'armure de metier a tisser
GB2312440A (en) * 1996-04-26 1997-10-29 Scapa Group Plc Jacquard mechanism
DE19651190C1 (de) * 1996-12-10 1998-06-10 Mayer Textilmaschf Elektromagnetisch arbeitende Jacquard-Steuervorrichtung
GB9626432D0 (en) * 1996-12-19 1997-02-05 Northern Electronic Technology Diagnostic system for a jacquard machine
SE533266C2 (sv) * 2008-12-16 2010-08-03 Texo Ab Vävmaskin med modulariserad drivning

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR6667E (fr) * 1907-01-31 Henri Alcibiade Vouriot Bande de roulement démontable pour bandages pneumatiques
US1214449A (en) * 1914-11-07 1917-01-30 Leopold Fuchs Jacquard mechanism for looms.
US1721787A (en) * 1926-11-05 1929-07-23 Nakanishi Kinjiro Electrically-controlled device for use in shedding motion in looms for weaving figured fabrics and for use in figured-card-cutting machines
CH471256A (de) * 1967-03-10 1969-04-15 Oerlikon Buehrle Ag Jacquardmaschine mit elektromagnetisch gesteuerten Litzen
DE1906109A1 (de) * 1969-02-07 1970-08-20 Ribler Pfeiffer Geb Verfahren und Vorrichtung zur Steuerung von Webmaschinen
DE2119053B2 (de) * 1971-04-20 1973-10-04 Peter Dipl.-Kfm. 8000 Muenchen Doehler Einrichtung zur Fachbildung an Webstühlen
DE2533763C2 (de) 1975-07-29 1980-01-10 Grosse Webereimaschinen Gmbh, 7910 Neu-Ulm Leisten-Jacquardmaschine
GB2047755B (en) * 1979-04-24 1983-03-30 Bonas Machine Co Loom heald control means

Also Published As

Publication number Publication date
JPH0372732B2 (enrdf_load_stackoverflow) 1991-11-19
DE3165478D1 (en) 1984-09-20
WO1981002434A1 (fr) 1981-09-03
EP0045759A1 (fr) 1982-02-17
FR2476694B1 (enrdf_load_stackoverflow) 1982-03-05
US4416310A (en) 1983-11-22
IT1135534B (it) 1986-08-27
JPS57500111A (enrdf_load_stackoverflow) 1982-01-21
IT8119848A0 (it) 1981-02-19
FR2476694A1 (fr) 1981-08-28
BE887591A (fr) 1981-06-15

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