EP0436909A1 - Dispositif d'exécution d'une lisière à pas de gaze - Google Patents

Dispositif d'exécution d'une lisière à pas de gaze Download PDF

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Publication number
EP0436909A1
EP0436909A1 EP90125152A EP90125152A EP0436909A1 EP 0436909 A1 EP0436909 A1 EP 0436909A1 EP 90125152 A EP90125152 A EP 90125152A EP 90125152 A EP90125152 A EP 90125152A EP 0436909 A1 EP0436909 A1 EP 0436909A1
Authority
EP
European Patent Office
Prior art keywords
thread
needle
upright
leno
holder
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.)
Withdrawn
Application number
EP90125152A
Other languages
German (de)
English (en)
Inventor
Christoph Schwemmlein
Matthias Klöcker
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.)
Kloecker Entwicklungs GmbH
Original Assignee
Kloecker Entwicklungs GmbH
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 Kloecker Entwicklungs GmbH filed Critical Kloecker Entwicklungs GmbH
Publication of EP0436909A1 publication Critical patent/EP0436909A1/fr
Withdrawn legal-status Critical Current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
    • D03C7/00—Leno or similar shedding mechanisms
    • D03C7/06—Mechanisms having eyed needles for moving warp threads from side to side of other warp threads

Definitions

  • the invention relates to a device for forming a leno selvedge, whereby mutually moving heald frames are provided, wherein a standing thread holder, preferably held by means of a frame, is provided on one heald frame for guiding a standing thread, a thread guide device guided by the frame being arranged on the other heald frame, and wherein the thread guiding device has an oblique slot with an end holding nose for guiding the leno thread.
  • a device of the type mentioned is known from EP-OS 0174 533.
  • the binding produced here by means of a standing thread guided by the stand thread holder and a leno thread guided in the thread guide device is known under the term "half-twist".
  • a thread is formed by the upright thread and the leno thread, into which the weft thread is inserted.
  • Such a binding is characterized in that the leno thread binds the upright thread after every second weft insertion. This means that the leno thread crosses the upright thread after every second weft entry.
  • a device is also known in which the thread guide device has a further eyelet for receiving a standing thread in addition to the slant slot. Although this creates a relatively strong bond, it is impossible with such a device to produce two parallel leno edges, each of which forms a stable bond. Rather, two separate devices would have to be arranged side by side in this case.
  • the invention is therefore based on the object of developing a device of the type mentioned in such a way that a comparatively firm bond can be produced with such a device, which also opens up the possibility of producing two parallel fixed leno edges with the aid of simple means and with the smallest space requirement.
  • the object is achieved according to the invention by a needle arranged opposite the upright thread holder for receiving a further upright thread.
  • the end of the needle like the upright thread holder, has an eyelet in the area of its upper end for guiding this additional upright thread.
  • two leno edges running parallel to one another each with a fixed bond.
  • two stand thread holders arranged parallel to one another are provided in the frame; in this case, two leno threads are each taken up by the thread guide device through an oblique slot.
  • two needles arranged opposite the upright thread holders, preferably arranged in the frame, are provided for guiding further two upright threads.
  • the design of the needle is such that the eyelet in the needle is arranged parallel to the lifting plane of the thread guide device; There is a vertical distance between the needle and the upright thread holder, which are aligned in line in the frame, in order to allow the transition of the leno thread from one side of the upright thread holder to the other side.
  • the needle has a tip at the end which is advantageously formed to run over a substantial part of the length of the needle.
  • the thread guide device has an oblique slot with a holding nose for the leno thread arranged at the upper end; corresponding to two oblique slots, each with an end retaining lug in the double version.
  • Appropriate pretensioning of the leno thread ensures that the leno thread runs out of the retaining lug parallel to the upright thread holder or the needle with a corresponding course of movement.
  • the upright thread has a deflecting surface at its upper end, by means of which the leno thread is lifted out of the holding nose when the movement is in the opposite direction. The slope of the deflecting surface is chosen so that it is opposite to the orientation of the oblique slot.
  • the upright thread holder has a recess extending along the upright thread holder; this facilitates the running-in of the leno thread into the retaining lug arranged at the end in the inclined slot.
  • the upright thread holder is made thicker in cross section than the width of the needle, which is fastened opposite it in the frame; this is usually already given by the fact that the tip of the needle is formed to run over a substantial part of the length of the needle. This ensures that, on the one hand, the leno thread can run more easily into the holding lug, and, on the other hand, is also more easily lifted out of the holding lug by the standing thread holder when the thread guide element moves accordingly, since in this case the tip of the upright thread holder formed by the deflecting surface projects beyond the needle laterally.
  • the device according to FIG. 1 for forming a leno selvedge has the heald frame 1 and the heald frame 2, which can be guided alternately, for example via a roller 3.
  • the frame 8 On one heald frame 1 or on the corresponding heddle support rails, the frame 8 is arranged, which essentially consists of two parallel frame rails 9 and 10, which have a U-shaped cross section.
  • the frame 8 has the upright thread holder 4 which is in the form of a needle.
  • the upright thread holder 4 has an eyelet 6 for guiding the upright thread 6a.
  • the upright thread holder 4 At the upper end the upright thread holder 4 has a deflecting surface 5, somewhat below the eyelet 6 the upright thread holder has a bulge 18.
  • a thread guide device which is denoted overall by 7, is arranged on the other heald frame 2, a thread guide device, which is denoted overall by 7, is arranged.
  • the thread guide device 7 is guided in the manner of a backdrop through the same frame rails 9 and 10, connecting means 7a to the heald frame 2 or the corresponding heddle support rails being provided. This means that if, for example, the heald frame 1 is moved in the direction of arrow 11, the thread guide device 7 is moved in the direction of arrow 12.
  • the thread guide device 7 has an oblique slot 13, which has a retaining lug 14 at the top end (FIG. 2).
  • the leno thread 13a is guided in this oblique slot 13.
  • the oblique slot 13 extends horizontally to such an extent that its ends give the leno thread located there the possibility of running along the outer surface 4a of the upright thread holder 4.
  • the holding lug 14 corresponds to the deflecting surface 5 of the upright thread holder 4, i.e. the leno thread 13a is lifted out of the retaining lug 14 by the deflecting surface with a corresponding relative movement of the thread guide device to the upright thread holder.
  • the lifting of the leno thread from the retaining lug 14 is made easier by the fact that the upright thread holder 4 is made thicker than the needle 16 arranged opposite it in the frame, so that the tip of the upright thread holder projects beyond the needle 16 laterally. The entry of the leno thread into the retaining lug 14 is also thereby facilitated.
  • the upright thread drawn through the opening 6 in the needle 5 is led out laterally on the frame rail 9 or 10 via an opening 15 so that the thread guiding device can carry out its lifting movement unhindered.
  • the upright thread 6a inserted into the opening 6 is first guided downward, deflected there and then pulled upward through the opening 15.
  • a further needle 16 is arranged opposite it in the frame 8. At its end, this needle 16 has an eyelet 17 for receiving a further upright thread 16a.
  • This upright thread similar to the upright thread 6a, is led out through a further opening 15a arranged in the frame rail 9.
  • the upright thread 16a guided through the opening 17 is first led upwards, deflected there and then downwards through the opening 15a arranged in the frame rail 9.
  • the operation of the device for forming the leno edge is as follows:
  • the leno thread 13a is located at the lower end of the oblique slot 13; According to arrow I, the leno thread is now passed to the right of the needle 16 and the upright thread holder 4. The moment it reaches the region of the bulge 18, the leno thread enters the retaining lug 14 of the oblique slot.
  • the entry of the leno thread into the retaining lug is supported by the weft thread, which presses the leno thread upwards in the inclined slot during the downward movement of the thread guide element.
  • the leno thread Due to the position of the leno thread in the holding nose, the leno thread crosses the needle 16 and the stand thread holder 4 (arrow II) when the subject is changed. Again through the weft thread, an additional force is exerted on the leno thread, which ensures that the leno thread surely remains in the retaining nose when the upright thread holder and the needle cross.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
EP90125152A 1990-01-09 1990-12-21 Dispositif d'exécution d'une lisière à pas de gaze Withdrawn EP0436909A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4000395 1990-01-09
DE19904000395 DE4000395A1 (de) 1990-01-09 1990-01-09 Vorrichtung zum bilden einer dreherkante

Publications (1)

Publication Number Publication Date
EP0436909A1 true EP0436909A1 (fr) 1991-07-17

Family

ID=6397760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125152A Withdrawn EP0436909A1 (fr) 1990-01-09 1990-12-21 Dispositif d'exécution d'une lisière à pas de gaze

Country Status (2)

Country Link
EP (1) EP0436909A1 (fr)
DE (1) DE4000395A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585086B2 (en) 2000-05-31 2003-07-01 Haldex Brake Products Ab Modular brake mechanism
US6668981B2 (en) 2000-05-31 2003-12-30 Haldex Brake Products Ab Disc brake comprising a brake mechanism
WO2015010879A1 (fr) * 2013-07-25 2015-01-29 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Machine à tisser équipé d'un dispositif servant à former un bord de gaze

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2083085A (en) * 1980-08-29 1982-03-17 Nuovo Pignone Spa Leno motion
EP0174533A2 (fr) * 1984-08-27 1986-03-19 Klöcker-Entwicklungs-GmbH Dispositif d'exécution d'une lisière à pas de gaze
CH658476A5 (en) * 1982-03-22 1986-11-14 Kloecker Geb Apparatus for forming a leno selvedge for tying in the weft thread in shuttleless looms
EP0335131A2 (fr) * 1988-03-31 1989-10-04 Klöcker-Entwicklungs-GmbH Dispositif pour former une lisière à pas de gaze

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918945A (en) * 1958-07-16 1959-12-29 Crompton & Knowles Corp Selvage and method and means for making same
DE3107116C2 (de) * 1981-02-26 1983-10-20 Lindauer Dornier Gmbh, 8990 Lindau "Vorrichtung zur Bildung einer Dreherkante"
US4478256A (en) * 1983-01-14 1984-10-23 Gebr. Klocker (Klocker Bros.) Apparatus for producing a selvage provided with a crossweave

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2083085A (en) * 1980-08-29 1982-03-17 Nuovo Pignone Spa Leno motion
CH658476A5 (en) * 1982-03-22 1986-11-14 Kloecker Geb Apparatus for forming a leno selvedge for tying in the weft thread in shuttleless looms
EP0174533A2 (fr) * 1984-08-27 1986-03-19 Klöcker-Entwicklungs-GmbH Dispositif d'exécution d'une lisière à pas de gaze
EP0335131A2 (fr) * 1988-03-31 1989-10-04 Klöcker-Entwicklungs-GmbH Dispositif pour former une lisière à pas de gaze

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585086B2 (en) 2000-05-31 2003-07-01 Haldex Brake Products Ab Modular brake mechanism
US6668981B2 (en) 2000-05-31 2003-12-30 Haldex Brake Products Ab Disc brake comprising a brake mechanism
WO2015010879A1 (fr) * 2013-07-25 2015-01-29 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Machine à tisser équipé d'un dispositif servant à former un bord de gaze
CN105408537A (zh) * 2013-07-25 2016-03-16 林道尔·多尼尔有限责任公司 具有用于形成纱罗织边的装置的织机

Also Published As

Publication number Publication date
DE4000395C2 (fr) 1991-10-10
DE4000395A1 (de) 1991-07-11

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