EP0065232B1 - Drawing gripper for looms - Google Patents

Drawing gripper for looms Download PDF

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Publication number
EP0065232B1
EP0065232B1 EP82103944A EP82103944A EP0065232B1 EP 0065232 B1 EP0065232 B1 EP 0065232B1 EP 82103944 A EP82103944 A EP 82103944A EP 82103944 A EP82103944 A EP 82103944A EP 0065232 B1 EP0065232 B1 EP 0065232B1
Authority
EP
European Patent Office
Prior art keywords
hook
gripper
fixed member
yarn
drawing gripper
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
EP82103944A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0065232A1 (en
Inventor
Nello Pezzoli
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.)
Vamatex SpA
Original Assignee
Vamatex 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
Application filed by Vamatex SpA filed Critical Vamatex SpA
Priority to AT82103944T priority Critical patent/ATE12123T1/de
Publication of EP0065232A1 publication Critical patent/EP0065232A1/en
Application granted granted Critical
Publication of EP0065232B1 publication Critical patent/EP0065232B1/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
    • D03D47/12—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
    • D03D47/236—Drawing grippers

Definitions

  • This invention relates to a drawing gripper for shuttleless looms, designed to prevent or limit to a minimum those cases in which the gripper itself fails to grip the weft yarn at the moment of exchanging said yarn with the carrying gripper at the centre of the shed.
  • the present invention provides a drawing gripper which, by virtue of its configuration - deriving besides from careful considerations as to the mechanics of the yarn exchange at the shed centre - provides an extremely satisfactory solution to the examined problem.
  • This gripper of the type comprising a fixed member with a hook end and a mobile oscillating element the end of which cooperates with said hook in order to retain the yarn, is characterized in that the hook at the end of the fixed member is disposed in a vertical plane and opens downwards.
  • the drawing gripper comprises a fixed member 1 with a hook end 2 and a mobile element 3 mounted oscillating about 4 on the member 1 and designed to cooperate in known manner with the inner part of the hook of the end 2 in order to retain the weft yarn.
  • the hook 5 of the illustrated gripper is disposed in a vertical plane and open downwards, i.e. towards the sliding plane of the gripper and of the straps which control its movement, as clearly shown in the figures of the drawing and particularly in Figure 2.
  • This arrangement of the hook 5 is combined, in the gripper according to the invention, with a special structure for protecting the warp yarns, constituted by a simple vertical fin 6 projecting from the member 1 carrying the hook 5, and disposed to the side of this latter.
  • the downwardly open hook arrangement results from the fact that most of the inconveniences occurring at the moment of the weft yarn exchange between the carrying gripper and the drawing gripper, are determined by the rotation movements of the carrying gripper about its longitudinal axis such as to lift the side thereof close to the reed, these movements causing a lifting of that portion of weft yarn which has to be gripped by the drawing gripper. It is precisely under such conditions that the upwardly open hooks of conventional grippers, which lie below the weft yarn in order to grip it, are unable to grip said yarn which, if being lifted, tends to escape from the hook. Whereas, with the downwardly open hook arrangement according to the present invention, the grip is always reliable and immediate, because the weft yarn is gripped when the hook is above it, whereby any lifting of the yarn will not allow its escape.
  • the vertical fin 6 for protecting the warp yarns forms a very efficient obstacle against any penetration of warp yarns towards the hook 5 and simultaneously reduces the overall vertical size of the gripper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Food-Manufacturing Devices (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Gyroscopes (AREA)
  • Knitting Machines (AREA)
  • Woven Fabrics (AREA)
EP82103944A 1981-05-15 1982-05-06 Drawing gripper for looms Expired EP0065232B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82103944T ATE12123T1 (de) 1981-05-15 1982-05-06 Greifer fuer webmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT21737/81A IT1135815B (it) 1981-05-15 1981-05-15 Pinza traente per telai di tessitura
IT2173781 1981-05-15

Publications (2)

Publication Number Publication Date
EP0065232A1 EP0065232A1 (en) 1982-11-24
EP0065232B1 true EP0065232B1 (en) 1985-03-13

Family

ID=11186157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103944A Expired EP0065232B1 (en) 1981-05-15 1982-05-06 Drawing gripper for looms

Country Status (11)

Country Link
EP (1) EP0065232B1 (cs)
JP (1) JPS584847A (cs)
AT (1) ATE12123T1 (cs)
BR (1) BR8202812A (cs)
CS (1) CS253569B2 (cs)
DD (1) DD202464A5 (cs)
DE (1) DE3262527D1 (cs)
ES (1) ES512114A0 (cs)
IT (1) IT1135815B (cs)
MX (1) MX157726A (cs)
PT (1) PT74897B (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110318142B (zh) * 2019-08-12 2020-09-15 浦江县嘉轩纺织品有限公司 一种纺织用喷水织机的防护机构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218834A (en) * 1975-08-06 1977-02-12 Kao Corp Long-acting perfumery composition
JPS5240659A (en) * 1975-09-24 1977-03-29 Rieter Ag Maschf Receiving and gripping weft in loom having device for removing weft from bobbin fixed
IT1095254B (it) * 1978-04-07 1985-08-10 Somet Meccanica Tessile S P A Pinza portante per telai di tessitura ad alimentazione continua della trama

Also Published As

Publication number Publication date
ES8305437A1 (es) 1983-04-01
BR8202812A (pt) 1983-04-26
DD202464A5 (de) 1983-09-14
ES512114A0 (es) 1983-04-01
IT8121737A0 (it) 1981-05-15
EP0065232A1 (en) 1982-11-24
ATE12123T1 (de) 1985-03-15
PT74897B (fr) 1983-11-30
IT1135815B (it) 1986-08-27
MX157726A (es) 1988-12-13
DE3262527D1 (en) 1985-04-18
PT74897A (fr) 1982-06-01
JPS584847A (ja) 1983-01-12
CS253569B2 (en) 1987-11-12

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