EP0388336B1 - Fadenklemmvorrichtungen, montiert auf dem Schussorgan von Webstühlen mit festem Reservefaden - Google Patents

Fadenklemmvorrichtungen, montiert auf dem Schussorgan von Webstühlen mit festem Reservefaden Download PDF

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Publication number
EP0388336B1
EP0388336B1 EP90420139A EP90420139A EP0388336B1 EP 0388336 B1 EP0388336 B1 EP 0388336B1 EP 90420139 A EP90420139 A EP 90420139A EP 90420139 A EP90420139 A EP 90420139A EP 0388336 B1 EP0388336 B1 EP 0388336B1
Authority
EP
European Patent Office
Prior art keywords
jaw
weft
fixed
yarn
looms
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 - Lifetime
Application number
EP90420139A
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English (en)
French (fr)
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EP0388336A1 (de
Inventor
Aimé Fabre
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.)
Individual
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Individual
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 Individual filed Critical Individual
Publication of EP0388336A1 publication Critical patent/EP0388336A1/de
Application granted granted Critical
Publication of EP0388336B1 publication Critical patent/EP0388336B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J5/00—Shuttles
    • D03J5/06—Dummy shuttles; Gripper shuttles

Definitions

  • weft pass-through member is constituted by a false shuttle launched through the crowd by two lateral sabers, but which are equipped with two fixed weft reserves while the false shuttle is provided with a wire clamp device suitable for grasping the wire of one reserves at the corresponding edge and to release it at the opposite edge.
  • the opening of the device is carried out using one or the other of the two shoes 6 fixed on the sides of the loom and profiled so as to engage in the groove 2 a of the false shuttle and to come thus wear against the heel 4 c .
  • the whole of the jaw 4 then swings around the pivot 3 against the elastic pushers 5, which has the effect of temporarily separating the jaw 4 a from the jaw 1 a and freeing the weft thread which was pinched between these.
  • the present invention mainly intends to remedy, which essentially consists in associating with the jaw an independent rocking lever which, receiving the action of the fixed control shoes, transmits it with gear reduction to said jaw.
  • the wire clamp device comprises a tilting jaw 14 which, as illustrated in FIG. 3, is integral with two ends of axis 21 oriented longitudinally relative to the axis of the shuttle in order to form pivots for said jaw.
  • each of these ends of the axis 21 is engaged in rotation in one of two perforations 22 a made side by side in dice 22 added against the body of the shuttle 12 in order to allow the jaw 14 to tilt.
  • jaw 14 is secured to a movable jaw 14 is adapted to cooperate with the fixed jaw 11 has the above-mentioned.
  • the jaw 14 has a wing 14 b which has imprints 14 ′ suitable for cooperating with the head of pushers 15, two in number in the embodiment envisaged.
  • Each pusher 15 slides in a threaded bushing 23 screwed into a vertical thread of a longitudinal guide 24 which borders on one side of the groove 12 a of the body 12 of the dummy shuttle. Between the end of each bush 23 and the head fulfilling the pusher 15 corresponding is interposed a spring 17 which tends to keep the jaw 14 is applied against the fixed jaw 11a.
  • the jaw 14 has no actuating heel.
  • This is in fact replaced by the vertical wing of a lever 25 with a square profile which, as shown in FIG. 3, is provided with two ends of axis or pivots 26 engaged in the second of the perforations 22 a of each die 22, so that said pivots are placed between the pivots 21 of the jaws 14 and the imprints 14 ′ above-indicated .
  • This lever 25 is thus capable of tilting along an axis parallel to that of the jaw 14, independently of the latter.
  • axle ends 26 are carried by lateral bosses 25a of the lever 25, projections between which engages the flange 14 b of the jaw 14.
  • the flange 14 b has thus bear against a sail 25 b which joins together the two bosses 25 a , as illustrated in FIG. 3, so that the tilting of the lever 25 according to the arrow F of FIG. 2 has the effect of causing the jaw 14 to tilt and the opening of the wire clamp device against the elastic return means 15-17.
  • the operation of the device according to the invention is in itself identical to that of conventional devices, in the sense that when the false shuttle arrives at one or other of its limit switches at level of the edges of the fabric, the hoof fixed 16 corresponding engages in the groove 12 a and controls the lever 25 which operates by tilting the opening of the jaws 14 a and 11 a .
  • the interposition of this double lever 25 between the shoe 16 envisaged and the jaw 14, joined to the positioning of the pivots 26 of said lever relative to the pivots 21 of the jaw introduces into the actuation system a force multiplier effect which allows easy control of the device upon opening despite the resistance exerted on the jaw by the springs 17 associated with the pushers 15 which ensure the elastic closure.

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

Claims (1)

  1. Fadenklemmvorrichtung, montiert auf dem Schußorgan in Form eines Blindschützens für Webstühle mit Reservefaden zur Herstellung von Industriegewebe aus Fäden großen Durchmessers und erheblicher Steifigkeit, mit einer Klemmbacke (14), die um eine Drehachse (21) schwenkbar ist und die einerseits mit einer beweglichen Backe (14a), welche mit einer festen Backe (11a) zusammenarbeiten kann, und andererseits und. der genannten beweglichen Backe gegenüberliegend mit einem Flügel (10b) versehen ist, der der Wirkung von federnden Mitteln (15 - 17) unterworfen ist, die das ständige Schließen der genannten Backen sicherstellen, welche sich unter der Wirkung zweier erster Schuhe (16) öffnen, mit denen sie in einer Längsnut (12a) eines Teils (12) des Blindschützens in Eingriff stehen, um die Klemmbacke zum Schwenken zu betätigen, dadurch gekennzeichnet, daß die Klemmvorrirhtung außerdem einen Kraftuntersetzungshebel (25) aufweist, dessen Drehachse (26) zum Schwenken zwischen der Drehachse (21) der Klemmbacke (14) und dem Angreifpunkt (14′) der federnden Mittel (15 - 17) angeordnet ist, und daß der genannte Hebel (25) ein solches Profil aufweist, daß er an dem Flügel (14b) der genannten Klemmbacke zur Anlage kommt, die unter der Wirkung der genannten federnden Mittel steht.
EP90420139A 1989-03-17 1990-03-15 Fadenklemmvorrichtungen, montiert auf dem Schussorgan von Webstühlen mit festem Reservefaden Expired - Lifetime EP0388336B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903793A FR2644480B1 (fr) 1989-03-17 1989-03-17 Perfectionnements aux dispositifs pince-fil montes sur l'organe passe-trame des metiers a tisser a reserves de trame fixes
FR8903793 1989-03-17

Publications (2)

Publication Number Publication Date
EP0388336A1 EP0388336A1 (de) 1990-09-19
EP0388336B1 true EP0388336B1 (de) 1992-12-30

Family

ID=9379973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420139A Expired - Lifetime EP0388336B1 (de) 1989-03-17 1990-03-15 Fadenklemmvorrichtungen, montiert auf dem Schussorgan von Webstühlen mit festem Reservefaden

Country Status (4)

Country Link
US (1) US5031670A (de)
EP (1) EP0388336B1 (de)
DE (1) DE69000679T2 (de)
FR (1) FR2644480B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1453911A (fr) * 1965-06-25 1966-09-30 Perfectionnements aux tire-trames pour métiers à tisser à fausse navette
DE1941404C3 (de) * 1968-09-13 1978-11-02 Elitex, Koncern Textilniho Strojirenstvi, Reichenberg (Tschechoslowakei) Ein- und Ausfädelvorrichtung einer Greiferschützenwebmaschine
FR2087725A5 (de) * 1970-05-29 1971-12-31 Fabre Aime
US3717181A (en) * 1971-05-28 1973-02-20 Manta Looms with a stationary weft supply and a weft carrier with gripper
FR2612207B1 (fr) * 1987-03-13 1989-06-16 Fabre Aime Dispositif coupe-fil pour metiers a tisser du type a reserves de trame fixes et a organes passe-trame lance

Also Published As

Publication number Publication date
DE69000679D1 (de) 1993-02-11
EP0388336A1 (de) 1990-09-19
FR2644480A1 (fr) 1990-09-21
FR2644480B1 (fr) 1991-06-21
DE69000679T2 (de) 1993-04-29
US5031670A (en) 1991-07-16

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