EP0239514B1 - Ratière rotative pour machines à tisser - Google Patents

Ratière rotative pour machines à tisser Download PDF

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Publication number
EP0239514B1
EP0239514B1 EP87420084A EP87420084A EP0239514B1 EP 0239514 B1 EP0239514 B1 EP 0239514B1 EP 87420084 A EP87420084 A EP 87420084A EP 87420084 A EP87420084 A EP 87420084A EP 0239514 B1 EP0239514 B1 EP 0239514B1
Authority
EP
European Patent Office
Prior art keywords
hook
eccentric
disc
nose
arm
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
EP87420084A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0239514A1 (fr
Inventor
Joseph Palau
Jean-Paul Froment
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
Original Assignee
Staubli Faverges SCA
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 Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0239514A1 publication Critical patent/EP0239514A1/fr
Application granted granted Critical
Publication of EP0239514B1 publication Critical patent/EP0239514B1/fr
Expired 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

Definitions

  • the present invention relates to mechanics for the formation of the crowd on the weaving machines and it relates more particularly to the dobbies of the rotary type, that is to say in which the control of the alternating vertical displacement of each heald frame is provided by means of an oscillating rod, one end of which is coupled to said frame while the opposite end, cut out from an opening, is engaged on an actuating eccentric.
  • the object of the present invention is to simplify the construction of the rotary dobbies according to the aforementioned French patent, without adversely affecting the reliability of the operation.
  • each of the articulated hooks is profiled on its outer edge in order to cooperate, when actuated with uncoupling, with one or the other of two retaining latches mounted at two points diametrically opposite with respect to the dobby tree.
  • reference 1 designates the frame of the dobby, which supports the main shaft 2 animated by the jerky rotation movement, which shaft is intended to control a series of oscillating connecting rods 3 each of which is coupled by a lever 4 to one of the heald frames 5 of the weaving machine associated with the dobby under consideration.
  • each of the connecting rods 3 is cut, opposite its coupling point with its lever 4, an opening 3a which is engaged, with the interposition of a bearing 6, on the cylindrical periphery of an eccentric d 'actuation 7; the latter is mounted idly on the shaft 2 by means of a bearing 8.
  • Each connecting rod 3 is associated with a drive disc 9 angularly secured to the shaft 2 and it will be observed that the periphery of this disc 9 is cut from two notches 9a, diametrically opposite one another. These two notches 9a are intended to cooperate with an articulated coupling hook 10 mounted on a small axis 11 carried by an overhanging plate 7a, laterally secured to the eccentric 7.
  • Fig. 3 and 4 clearly show the profile of the hook 10 which has, on either side of its articulation axis 11, a selection arm 10 'and a coupling arm 10 ".
  • the edge of this arm 10" which is turned towards the disc 9 has a projecting spout 10a, which is clean under the effect of elastic return means constituted by a spring 12 interposed between the plate 7a and the end of the arm 10 "of said hook, to be worn permanently against the free edge of the disc 9 and to engage, during each stop of the shaft 2, inside one or the other of the two notches 9a.
  • the hook 10 is controlled, against the spring 12, by the end of two selector levers 13 (fig. 1) pivotally carried by two fixed axes 14 oriented parallel to the shaft 2.
  • These pivoting levers 13 are coupled one to the other by a link 15 and one of them (the one on the right in fig. 1) has an extension on which two rods 16 are articulated which are moved transversely to their axis by two needles 17 controlled axially by a program 18 reading device with electronic or mechanical operation.
  • the transverse displacement of the rods 16 under the effect of the needles 17 allows, according to the program incorporated in the device 18, to the said rods either to cooperate with two pushers 19 with reciprocating movement thereby ensuring the actuation of the two pivoting levers 13, or to escape the action of said pushers 19 while remaining stationary.
  • a spring 20, interposed between one of the levers 13 and the frame 1, tends to spring back permanently in the direction of the shaft 2 the end of the lever 13 with which it is associated, and on the contrary to maintain the end of the opposite lever 13 spaced from said shaft, so that the action of this spring 20 is exerted in an antagonistic manner with respect to that of the pushers 19.
  • a fixed stop 21 limits the tilting of the levers 13 under the effect of the spring 20.
  • the selector lever 13 which is then placed at the level of the hook 10 receives no action from the reading device 18 (case of fig. 3)
  • the spring 12 associated with said hook 10 elastically engages the spout 10a thereof in the notch 9a of the drive disc which is then placed opposite; there is therefore coupling of the shaft 2 and the eccentric 7 through the hook 10 and the disc 9, so that the connecting rod 3 is controlled.
  • each of these latches 22 is pivotally mounted on its support 23 and receives the action of a spring 24 which tends to keep it applied against a fixed stop 25.
  • the plate 7a of the eccentric 7 and the hook 10 itself can be constituted by flat parts having no camber or bending. It will be noted that the coupling and immobilization functions are grouped together in the same arm 10 "from the single hook 10, which makes it possible to obtain very high precision. In addition, and the point deserves to be underlined, there n 'There is action on the hook 10 that during the angular immobilization of the rod 3, which limits wear to a considerable extent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP87420084A 1986-03-26 1987-03-26 Ratière rotative pour machines à tisser Expired EP0239514B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8604635 1986-03-26
FR8604635A FR2596425B1 (fr) 1986-03-26 1986-03-26 Ratiere rotative pour machines a tisser

Publications (2)

Publication Number Publication Date
EP0239514A1 EP0239514A1 (fr) 1987-09-30
EP0239514B1 true EP0239514B1 (fr) 1989-11-15

Family

ID=9333753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420084A Expired EP0239514B1 (fr) 1986-03-26 1987-03-26 Ratière rotative pour machines à tisser

Country Status (6)

Country Link
US (1) US4858655A (enrdf_load_stackoverflow)
EP (1) EP0239514B1 (enrdf_load_stackoverflow)
JP (2) JPS62238840A (enrdf_load_stackoverflow)
DE (1) DE3761001D1 (enrdf_load_stackoverflow)
ES (1) ES2011642B3 (enrdf_load_stackoverflow)
FR (1) FR2596425B1 (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214834A (en) * 1990-05-18 1993-06-01 S.A. Des Etablissments Staubli Process for assembling the actuation elements of a rotating dobby
FR2662186B1 (fr) * 1990-05-18 1992-08-28 Staubli Sa Ets Procede pour le montage des elements d'actionnement des ratieres rotatives pour metiers a tisser, et ratieres obtenues.
EP0467444B1 (en) * 1990-07-20 1997-06-18 Brevtex Sa Actuation device for the programming of rotary dobbies in looms
IT1243890B (it) * 1990-11-05 1994-06-28 Giobbe Srl Dispositivo per il comando e controllo di una ratiera rotativa di macchine tessili con leva profilata a camma e relativi mezzi di contrasto cooperanti
IT1260291B (it) * 1992-12-18 1996-04-03 Lucio Burigana Ratiera rotativa
IT1276827B1 (it) * 1995-10-06 1997-11-03 Fimtextile Spa Dispositivo per attuare la programmazione di ratiere rotative in macchine di tessitura
FR2757882B1 (fr) * 1996-12-31 1999-02-19 Staubli Sa Ets Ratiere rotative et metier a tisser equipe d'une telle ratiere
EP0882821B1 (en) * 1997-06-03 2003-11-05 FIMTEXTILE S.p.A. Programming device for rotary dobbies in weaving machines
FR2772793B1 (fr) * 1997-12-24 2000-01-28 Staubli Sa Ets Dispositif de blocage d'un actionneur rotatif electrique pour la formation de la foule sur un metier a tisser, mecanique d'armure et metier a tisser
US6660198B1 (en) 2000-09-19 2003-12-09 Marconi Communications, Inc. Process for making a plastic counterflow heat exchanger
US6364007B1 (en) 2000-09-19 2002-04-02 Marconi Communications, Inc. Plastic counterflow heat exchanger
US7475708B2 (en) * 2004-11-17 2009-01-13 Groz-Beckert Kg Shaft drive for heald shafts of weaving machines
DE102005059911B3 (de) * 2005-12-15 2007-02-08 Groz-Beckert Kg Schaftantrieb für eine Webmaschine
CN101709525B (zh) * 2009-11-19 2011-04-13 常熟纺织机械厂有限公司 旋转式电子多臂机的三开口开口机构
FR2990958B1 (fr) * 2012-05-24 2014-06-13 Staubli Sa Ets Dispositif de formation de la foule et metier a tisser equipe d'un tel dispositif

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478682A1 (fr) * 1980-03-20 1981-09-25 Staubli Sa Ets Perfectionnements aux ratieres du type rotatif pour metiers a tisser
DE3069829D1 (en) * 1980-09-12 1985-01-31 Sulzer Ag Coupling system for operating the heald frames in a loom
EP0050160A1 (de) * 1980-10-10 1982-04-28 GebràœDer Sulzer Aktiengesellschaft Kupplungsanordnung zum Steuern der Schäfte einer Webmaschine
EP0056098B1 (de) * 1981-01-09 1985-01-23 Textilma AG Kupplungsvorrichtung, insbesondere für eine Textilmaschine
FR2515702A1 (fr) * 1981-10-29 1983-05-06 Staubli Sa Ets Perfectionnements aux ratieres rotatives
DE3278209D1 (en) * 1982-12-03 1988-04-14 Sulzer Ag Loom dobby
EP0142681B1 (de) * 1983-10-07 1987-01-21 Stäubli AG (Stäubli SA) (Stäubli Ltd.) Hubeinheit einer Rotations-Schaftmaschine
DE3414639A1 (de) * 1984-04-18 1985-10-24 W. Schlafhorst & Co, 4050 Mönchengladbach Rotations-schaftmaschine

Also Published As

Publication number Publication date
JPS62238840A (ja) 1987-10-19
EP0239514A1 (fr) 1987-09-30
FR2596425A1 (fr) 1987-10-02
JPH0342058Y2 (enrdf_load_stackoverflow) 1991-09-03
JPH0246879U (enrdf_load_stackoverflow) 1990-03-30
US4858655A (en) 1989-08-22
DE3761001D1 (en) 1989-12-21
FR2596425B1 (fr) 1988-05-20
ES2011642B3 (es) 1990-02-01

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