US3809129A - Device for transferring a portion of weft thread to a weft inserting means - Google Patents

Device for transferring a portion of weft thread to a weft inserting means Download PDF

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Publication number
US3809129A
US3809129A US00279291A US27929172A US3809129A US 3809129 A US3809129 A US 3809129A US 00279291 A US00279291 A US 00279291A US 27929172 A US27929172 A US 27929172A US 3809129 A US3809129 A US 3809129A
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US
United States
Prior art keywords
inserting means
coiling member
thread
slot
coil
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
US00279291A
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English (en)
Inventor
W Muller
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.)
Ruti Machinery Works Ltd
Maschinenfabrik Rueti AG
Original Assignee
Maschinenfabrik Rueti AG
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 Maschinenfabrik Rueti AG filed Critical Maschinenfabrik Rueti AG
Application granted granted Critical
Publication of US3809129A publication Critical patent/US3809129A/en
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
    • D03D47/26—Travelling-wave-shed looms
    • D03D47/261—Preparation of weft

Definitions

  • the present invention relates to a device for transferring a portion of weft thread to a weft thread inserting or picking means, the device comprising a thread coiling or winding member formed with a slot therein and along which the portion of thread is adapted to be displaced, as a coil, with the aid of a pusher means extending through the slot, the inserting means comprising two flat, juxtaposed lateral walls with the coil thus formed. being transferred to the inserting means by pushing the inserting means over the coiling member, transversely of the longitudinal direction thereof, and then pulling away the inserting means in the longitudinal direction of the coiling member, over one end thereof.
  • coils of thread of predeterminedlength are pushed by pusher means from a winding zone to a transfer zone.
  • the pusher means serves not only for displacing the coils of thread but also for accurately determining the number of windings of each coil.
  • the inserting means isbeing pushed over the coiling member, there are forces which act on the coiling 1 member in the lateral direction, so that it must be sufficiently stable.
  • the slot provided for the pusher means has been made only sufficiently long as was necessary for determining the number of winding turns in the coil and for displacing the coils of thread.
  • the cloth produced is found to be insufficiently faultless. It has been found that these disadvantages may be obviated by means of the present invention.
  • the latter is characterized in that the slot extends as far as the end of the coiling member over which the inserter means is drawn, so that the coiling member has, at this end, two separate elements or parts.
  • the invention has a further advantage in that the device makes it possible to weave, thinner weft yarns than had heretofore been possible in the art.
  • FIG. I is a lateral elevational view of a device according to the invention.
  • FIG. 2 shows a section taken along the line II-Il of FIG. 1;.
  • a coiling member 11 is formed with a slot 12 having 7 an open or free end along which a pusher or slide means 13 may be displaced.
  • the coiling member 11 is of blade-like shape. It has two oblique edges 14 and is inserted at 15 intoa slot formed in a-r'otatably mounted member 16, being secured by means of the screw 17 to the latter.
  • the member 16 is mounted in the rotorl9 by means of the pivot or rotary bearing 18.
  • the said rotor has an eyelet 20 through which extends a weft thread 21.
  • the weft thread 21 travels from a supply bobbin (not shown).
  • the thread 21 iswound onto the coiling member 11, since the latter remains at a standstill during this procedure. It is prevented from rotating with the rotor 19 due to the two pins 23 carried by the holder 22 (see FIGS. 1 and 2).
  • the holder 22 is operatively connected and carried by a holder rod 25 displaceable in its longitudinal direction against the pressure of a holder rod spring 24.
  • pusher or slide means 13 is adapted to be reciprocated along the rail 26, i.e., perpendicular to the plane of FIG. 2.
  • the rail 26 is, on the other hand, carried by one or two slide means pusher.
  • rods 27 which are displaceable in their longitudinal direction and correspondingly biased (in FIG. 2 towards the left) by one or two slide means pusher rod springs 29.
  • Weft inserting or picking means or shuttles 30 are, in the feed box 31, pushed in continuous sequence from above downwardly and over the coiling member 11.
  • Each one thereof has two lateral walls 32 each of which carries an insert 33.
  • the lateral walls 32 are connected along the zone 34; along the remaining portion of their periphery they are free from each other (see FIGS. 1 and 2). i
  • the holder 22 is displaced, due tomovementof the rod 25 against the pressure of spring 24, so that the pins 23 are lifted off from the coiling member 11.
  • the pusher or slide means 13 is displaced from position 13' into the position shown, displacing a thread or yarn coil from zone 35 to zone 36 (see FIG. 1).
  • the inserting means 30 pushed over the coiling member 11 is displaced towards the left, where it enters a shed (not shown).
  • One of the essential features of the present invention consists in that the slot 12 extends as far as the end of the coiling member 11 over which the inserting means 30 is drawn, away from the coiling member. In this manner, unhindered sliding of the weft thread coils is guaranteed. Thereby, the mutual position of the individual turns or windings between the inserts 33 is in no way varied during the pushing-away from the coiling member, so that renewed withdrawal of the weft thread out of the inserter means 30 during the weaving operation is effected in a neat, clean manner.
  • the portion arranged above the slot 12 in FIG. 1, i.e., the portion located on that side from which the inserting means 30 is pushed-over, is designed to be wider than the other portion remote from the side at which the inserter means 30 is pushed-over.
  • inserting means comprising of the inserting means in the longitudinal direction of the coiling member over said open end of the slot; characterized in that the open end of said longitudinal slot is located at that end of the said coiling member over which the inserting means is pulled-away.
  • a device in which the bladelike position is subdivided'into two separate portions, one portion being wider and located at that side from which the inserter means is pushed over 'the blade-like portion.
  • a device in which said pusher means operates to transfer the desired number of windings forming said coil during said transfer to said inserting means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US00279291A 1971-08-13 1972-08-10 Device for transferring a portion of weft thread to a weft inserting means Expired - Lifetime US3809129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1194171A CH534236A (de) 1971-08-13 1971-08-13 Einrichtung zum Übergeben eines Schussfadenstücks an ein Schussfadeneintragsorgan

Publications (1)

Publication Number Publication Date
US3809129A true US3809129A (en) 1974-05-07

Family

ID=4378331

Family Applications (1)

Application Number Title Priority Date Filing Date
US00279291A Expired - Lifetime US3809129A (en) 1971-08-13 1972-08-10 Device for transferring a portion of weft thread to a weft inserting means

Country Status (4)

Country Link
US (1) US3809129A (de)
CH (1) CH534236A (de)
DE (1) DE2239448C3 (de)
GB (1) GB1376776A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174736A (en) * 1977-11-09 1979-11-20 Yoshida Kogyo K.K. Apparatus for manufacturing a slide fastener stringer having a woven coiled coupling element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263705A (en) * 1962-11-23 1966-08-02 Rudolf H Rossmann Weaving method and loom
US3672404A (en) * 1970-03-18 1972-06-27 Rueti Ag Maschf Device for producing thread windings on a loom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263705A (en) * 1962-11-23 1966-08-02 Rudolf H Rossmann Weaving method and loom
US3672404A (en) * 1970-03-18 1972-06-27 Rueti Ag Maschf Device for producing thread windings on a loom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174736A (en) * 1977-11-09 1979-11-20 Yoshida Kogyo K.K. Apparatus for manufacturing a slide fastener stringer having a woven coiled coupling element

Also Published As

Publication number Publication date
GB1376776A (en) 1974-12-11
DE2239448A1 (de) 1973-02-22
CH534236A (de) 1973-02-28
DE2239448B2 (de) 1977-08-11
DE2239448C3 (de) 1978-04-06

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