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EP0021720A1 - Dispositif d'insertion de la trame - Google Patents

Dispositif d'insertion de la trame Download PDF

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Publication number
EP0021720A1
EP0021720A1 EP80301959A EP80301959A EP0021720A1 EP 0021720 A1 EP0021720 A1 EP 0021720A1 EP 80301959 A EP80301959 A EP 80301959A EP 80301959 A EP80301959 A EP 80301959A EP 0021720 A1 EP0021720 A1 EP 0021720A1
Authority
EP
European Patent Office
Prior art keywords
rapier
loom
attached
attachment
drive pulley
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Withdrawn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
EP80301959A
Other languages
German (de)
English (en)
Inventor
John Dalton Griffith
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.)
Bonas Machine Co Ltd
Original Assignee
Bonas Machine Co Ltd
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 Bonas Machine Co Ltd filed Critical Bonas Machine Co Ltd
Publication of EP0021720A1 publication Critical patent/EP0021720A1/fr
Withdrawn legal-status Critical Current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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/271—Rapiers
    • D03D47/273—Rapier rods
    • 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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/275—Drive mechanisms

Definitions

  • This invention concerns a weft inserter drive and in particular a drive for a weft inserter of the rigid rod type (hereinafter referred to as a 'rapier').
  • the loom with which the rapier is used will be referred to as a 'rapier loom' and it is to be understood that the invention is applicable to rapier looms in which there is a single rapier adapted to insert weft through the warp shed from one side only of the loom, or to rapier looms in which there are two rapiers each of which is adapted to insert weft across half of the width of the warp shed, there being transfer means to ensure that the weft after insertion by one rapier is engaged with, and inserted through the remainder of the shed, by the other rapier.
  • a rapier loom having one or more rapiers which are movably mounted for reciprocatory movement for insertion of weft yarns, each rapier being reciprocated by a drive means including first and second flexible elongate members each of which is attached at one end to the rapier and attached at its opposite end to the loom frame, the first and second belts each being wrapped in opposed directions about a common drive pulley which is moved in an oscillatory manner to cause reciprocation of the rapier, the ends of the first and second flexible elongate members being attached to the rapier at separate points of attachment spaced along the rapier.
  • a rapier 10 which is free to slide axially in guide means (not shown).
  • the rapier 10 is provided with attachment means 11 and 12, the attachmens means 11 being located at the non-operative end of the rapier.
  • the attachment means 12 is attached to the rapier at a point between its mid-position and its operative end 13.
  • the distance between attachment means 11, 12 is at least equal to the amplitude of oscillation of the drive pulley 15 which is described hereinafter.
  • Secured to the attachment means 11 is a first flexible elongate member in the form of a belt or cord 14 which passes around a drive pulley 15 and has its free end anchored at 16 to a fixed part of the loom frame.
  • a second flexible elongate member in the form of a belt or cord 17 is provided and this has one of its ends secured to the attachment means 12 and its other to an anchor means 18 secured to a fixed part of the looms spaced from the anchor means 16.
  • the second cord 17 wraps the pulley 15 in the opposite direction to that by which the first cord wraps the pulley 15.
  • the pulley 15 is mounted at one end of a first link 19 the other end of which is pivotally attached to a tie link 20 which is itself pivotally attached to a tie link 20 which is itself pivotally mounted on a bracket 21 fixed to the loom frame.
  • Pivotally attached to the first link 19 at its mid-position is one end of a control link 22 the other end of which is pivotally mounted on a bracket 23 attached to a fixed part of the loom frame and spaced from the bracket 21.
  • Links 19, 20 and 22 serve to maintain the drive pulley 15 in a linear oscillatory path of movement which is substantially parallel to the path of movement of the rapier 10.
  • the present drive means is chosen by suitable adaption of size of pulley 15 to ensure that when the first link 19 is pivoted about its pivot axis on the tie link 20 and its direction of movement is controlled by the control link 22, the operative end 13 of the rapier 10 will move through a distance equal to twice that through which the drive pulley is moved.
  • a drive means is provided for the link system and conveniently this includes an eccentric upon which is mounted a drive rod which may be attached either to the first link 19 or the control link 22 in such manner that reciprocation of the drive rod will operate the link system.
  • the drive means for the link system is, of course, synchronised with the other loom motions.
  • the broken lines on the drawing serve to indicate the positions assumed by the rapier and the link system when the rapier has been moved from a position in which its end 13 is outside a warp shed to a position in which it is fully inserted into the warp shed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP80301959A 1979-07-03 1980-06-11 Dispositif d'insertion de la trame Withdrawn EP0021720A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7923087 1979-07-03
GB7923087 1979-07-03

Publications (1)

Publication Number Publication Date
EP0021720A1 true EP0021720A1 (fr) 1981-01-07

Family

ID=10506259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80301959A Withdrawn EP0021720A1 (fr) 1979-07-03 1980-06-11 Dispositif d'insertion de la trame

Country Status (1)

Country Link
EP (1) EP0021720A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2304195A (en) * 1941-02-08 1942-12-08 Crompton & Knowles Loom Works Thread control for axminster needle motion
US2524734A (en) * 1949-05-14 1950-10-03 Alexander Smith & Sons Carpet Axminster needle drive mechanism
GB704401A (en) * 1951-08-30 1954-02-24 Wilson & Longbottom Ltd Improvements in looms for weaving
GB774021A (en) * 1954-12-15 1957-05-01 Ian Stephen Porter Improvements in or relating to looms for weaving
US2816576A (en) * 1953-08-14 1957-12-17 Weaving Res & Textile Commissi Looms for weaving
DE1710233A1 (de) * 1967-01-31 1971-10-14 Camarasa Monge Vorrichtung zur Betaetigung von Schussfadenfuehrern in schuetzenlosen Webstuehlen
DE2628402A1 (de) * 1975-06-24 1976-12-30 Raymond Dewas Webmaschine mit schussfadenzufuhr von ausserhalb des fachs liegenden spulen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2304195A (en) * 1941-02-08 1942-12-08 Crompton & Knowles Loom Works Thread control for axminster needle motion
US2524734A (en) * 1949-05-14 1950-10-03 Alexander Smith & Sons Carpet Axminster needle drive mechanism
GB704401A (en) * 1951-08-30 1954-02-24 Wilson & Longbottom Ltd Improvements in looms for weaving
US2816576A (en) * 1953-08-14 1957-12-17 Weaving Res & Textile Commissi Looms for weaving
GB774021A (en) * 1954-12-15 1957-05-01 Ian Stephen Porter Improvements in or relating to looms for weaving
DE1710233A1 (de) * 1967-01-31 1971-10-14 Camarasa Monge Vorrichtung zur Betaetigung von Schussfadenfuehrern in schuetzenlosen Webstuehlen
DE2628402A1 (de) * 1975-06-24 1976-12-30 Raymond Dewas Webmaschine mit schussfadenzufuhr von ausserhalb des fachs liegenden spulen

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19810615

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830627

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GRIFFITH, JOHN DALTON