EP0195752B1 - A method of forming, on a needle loom, a bridge in ribbons particularly for up-down moving curtains - Google Patents

A method of forming, on a needle loom, a bridge in ribbons particularly for up-down moving curtains Download PDF

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Publication number
EP0195752B1
EP0195752B1 EP86830063A EP86830063A EP0195752B1 EP 0195752 B1 EP0195752 B1 EP 0195752B1 EP 86830063 A EP86830063 A EP 86830063A EP 86830063 A EP86830063 A EP 86830063A EP 0195752 B1 EP0195752 B1 EP 0195752B1
Authority
EP
European Patent Office
Prior art keywords
ribbon
warp yarn
bridge
warp
yarn
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
EP86830063A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0195752A3 (en
EP0195752A2 (en
Inventor
Mario Braccio
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.)
EMMEBI SpA
Original Assignee
EMMEBI SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11162517&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0195752(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EMMEBI SpA filed Critical EMMEBI SpA
Priority to AT86830063T priority Critical patent/ATE48448T1/de
Publication of EP0195752A2 publication Critical patent/EP0195752A2/en
Publication of EP0195752A3 publication Critical patent/EP0195752A3/en
Application granted granted Critical
Publication of EP0195752B1 publication Critical patent/EP0195752B1/en
Expired 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
    • D03D47/02—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein loops of continuous weft thread are inserted, i.e. double picks
    • D03D47/10—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein loops of continuous weft thread are inserted, i.e. double picks by a forked needle pushing loop of weft through shed
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D03D11/02—Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft

Definitions

  • up-down moving curtains and specifically socalled packing curtains, are currently provided with several ribbons arranged across the curtain at substantially equal distances apart such as to lay in a parallel direction to the curtain up-down direction of movement.
  • Such ribbons require that loops or small pockets be formed therein at regular intervals through which a string is passed slidingly which engages with its end the bottom edge of the curtain to move it up and down.
  • Such ribbons may be formed on a shuttle loom wherein a shuttle weaves the background ribbon and a second shuttle weaves the string from which the loops are formed coaxially with the background ribbon.
  • the first shuttle When a loop is to be formed, the first shuttle is stopped, and the second shuttle will produce a length of string appropriate to form on the ribbon the loop to be used for leading the string that controls the up-down movement of the curtain.
  • a tape is weaved on the ribbon which usually has a smaller width than the ribbon, and at regular intervals, the ribbon and tape are not sewn to each other so as to leave a pocket having a substantially vertical axis to the ribbon axis.
  • the cited ribbons have the disadvantage of either being weaved on shuttle looms, which are very slow in operation and labour-consuming, or if weaved on needle looms, and accordingly at a high weaving race and loin labour input, that rings have to be used.
  • the method described in the European patent application consists of forming, at those areas where the strap fabric and cited pocket are to be formed. a double shed and using a warp yarn as the weft yarn in the double weaved part.
  • the cited warp yarn is placed, when used as the weft yarn, halfway up in the upper shed of the double shed, and the number of the warp yarns required for the weft yarns is equal to the number of the lengthwise yarns of the double weaved fabric to be weaved.
  • a not least object of the invention is to provide a method of forming a bridge, on needle looms, which has a lower hot shrinkage rate than the ribbon on which it is weaved.
  • the warp yarn 9 is taken in a substantially transverse direction to the ribbon 7, and specifically from a first side 14 of the ribbon 7 over and across all the warp yarns making up the ribbon 7 to engage with at least one warp yarn and precisely only with the warp yarn 15 in the edge of the second side 16 of the ribbon 7.
  • the warp yarn 9 is taken back likewise to the first side 14 to engage with at least one warp yarn, and precisely only with the warp yarn 17 in the edge of the first side 14 to form the bridge 8.
  • the warp yarn 9 would be hot preset, prior to being weaved onto the ribbon, thereby on completion of the bridge it will exhibit on the ribbon a hot shrinkage rate which is lower than the ribbon hot shrinkage rate, so as to yield, on completion of the product, a bridge having a definitely greater length than the width of the ribbon following heat treatment.
  • the warp yarn would only be taken across with its initial section 20, as shown in Figure 4a, over the warp yarns comprehensively designated 22 of the middle portion of the ribbon 7 to only engage, as the weft yarn, with several warp yarns comprehensively designated 23 and 24 close to the first and second sides 14 and 16 of the ribbon 7. Thereafter, the warp yarn 9 is taken back likewise to the first side 14 of the ribbon 7 to engage, again as the weft yarn, with the warp yarns comprehensively designated 24 close to the side 14 so as to form the bridge 8 having a free section 20 substantially shorter than the ribbon 7 is wide.
  • the warp yarn is disposed substantially above the shed 25, as shown in Figure 2, owing to its being passed through the oblong eye 10 presented by the heald 11 of the frame 3.
  • latch needle 25 serving the sole function of holding back the warp yarn 9 as the sickle 12 is being returned to its original position as shown in figure 5.
  • an elastically extensible element 30 in a substantially parallel direction to the ribbon axis, so as to arrange itself advantageously between the ribbon and the warp yarn which is taken by the sickle 12 across the ribbon so as to space the warp yarn forming the bridge of the ribbon 7 further away and enable the curti- an up-down movement control string to be passed through the space defined between the bridge and the ribbon 7.
  • each portion of the ribbon 7 proximate the sides 14 and 16 has a higher number of warp yarns than the number of the warp yarn in the middle portion of the ribbon 7.
  • the ribbon 7 will exhibit during the heat treatment a differentiated shrinkage rate that is a lower shrinkage rate close to the sides 14 and 16 and a higher one close to its middle portion, thus expanding the advantages afforded by presetting the warp yarn forming the bridge relatively to the ribbon 7, so as to provide a bridge which is spaced farther from the ribbon on which it is weaved and favour passing a string or another element having any size.
  • the materials used and the dimensions may be any ones contingent on requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Of Fabric (AREA)
  • Decoration Of Textiles (AREA)
EP86830063A 1985-03-18 1986-03-17 A method of forming, on a needle loom, a bridge in ribbons particularly for up-down moving curtains Expired EP0195752B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86830063T ATE48448T1 (de) 1985-03-18 1986-03-17 Verfahren zum bilden einer bruecke auf nadelwebstuehlen in baendern, insbesondere fuer vorhaenge mit auf- und abbewegung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1994185 1985-03-18
IT19941/85A IT1185537B (it) 1985-03-18 1985-03-18 Procedimento per la formazione su telai ad aghi di un ponticello su nastri particolarmente per tende a moviemnto verticale

Publications (3)

Publication Number Publication Date
EP0195752A2 EP0195752A2 (en) 1986-09-24
EP0195752A3 EP0195752A3 (en) 1988-06-08
EP0195752B1 true EP0195752B1 (en) 1989-12-06

Family

ID=11162517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86830063A Expired EP0195752B1 (en) 1985-03-18 1986-03-17 A method of forming, on a needle loom, a bridge in ribbons particularly for up-down moving curtains

Country Status (5)

Country Link
EP (1) EP0195752B1 (es)
AT (1) ATE48448T1 (es)
DE (2) DE195752T1 (es)
ES (1) ES8608066A1 (es)
IT (1) IT1185537B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429036C2 (de) * 1994-08-16 2000-12-07 Gerster Gustav Gmbh & Co Verfahren und Nadelbandwebmaschine zur Herstellung eines Brücken oder Taschen aufweisenden Bandes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2152124B1 (es) * 1997-02-05 2001-08-01 Novitex C B Cinta para cabeceras de cortinas, procedimiento y dispositivo de fabricacion.
CN104073957A (zh) * 2014-06-30 2014-10-01 吴江市纺织科技中心有限公司 一种滑道穿线装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH490541A (de) * 1969-05-05 1970-05-15 Mueller Jakob Verfahren und Vorrichtung zur Anbringung mindestens eines Effektfadens und/oder mindestens eines Befestigungsfadens für Gegenstände an Geweben, insbesondere Bandgeweben, während des Webvorganges
CH639710A5 (de) * 1979-11-08 1983-11-30 Textilma Ag Verfahren zur herstellung eines gewebes, webmaschine zur durchfuehrung des verfahrens und nach dem verfahren hergestelltes gewebe.
ES8106772A1 (es) * 1980-03-28 1981-09-01 Murtra Ind Procedimiento de formacion de una doble tela en telares de agujas para cinteria

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429036C2 (de) * 1994-08-16 2000-12-07 Gerster Gustav Gmbh & Co Verfahren und Nadelbandwebmaschine zur Herstellung eines Brücken oder Taschen aufweisenden Bandes

Also Published As

Publication number Publication date
ES8608066A1 (es) 1986-06-16
DE195752T1 (de) 1989-06-22
EP0195752A3 (en) 1988-06-08
IT1185537B (it) 1987-11-12
ES544940A0 (es) 1986-06-16
EP0195752A2 (en) 1986-09-24
ATE48448T1 (de) 1989-12-15
DE3667308D1 (de) 1990-01-11
IT8519941A0 (it) 1985-03-18

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