EP0311945A1 - Pair of weft grippers for shuttleless looms - Google Patents
Pair of weft grippers for shuttleless looms Download PDFInfo
- Publication number
- EP0311945A1 EP0311945A1 EP88116764A EP88116764A EP0311945A1 EP 0311945 A1 EP0311945 A1 EP 0311945A1 EP 88116764 A EP88116764 A EP 88116764A EP 88116764 A EP88116764 A EP 88116764A EP 0311945 A1 EP0311945 A1 EP 0311945A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slider
- grippers
- pair
- gripper
- spring
- 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- Withdrawn
Links
Images
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
-
- 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
- the present invention concerns a pair of weft grippers for shuttleless looms, namely a pair of members by means of which the weft yarns are inserted at one end of the loom and carried to the opposite end thereof through the warp shed.
- the present invention particularly concerns improvements in a pair of weft grippers, of the type in which the weft yarn is retained by engagement of the head of a slider, movable longitudinally to the gripper, with a cooperating counteracting surface of the body of said gripper, said slider being stressed by a spring.
- the slider in these grippers has always been released by stretching an element with flexible lamina controlling the same, through winding of said element onto a cylindrical pin or - more recently - onto a cam with a slightly curved contour (see for example the European Patent Application No. 85106398.2 of the same Applicant), said pin or cam being caused to rotate by a release lever carried by the gripper body and rotated in turn by a fixed element of the loom engaging therewith.
- the flexible control element is always highly and frequently stressed, and it tends to fatigue break after a more or less long period of use of the grippers, with evident damage for the production requirements.
- the object of the present invention is to eliminate this drawback by supplying, for the purpose, a pair of grippers - a carrying and, respectively, a drawing gripper - of the aforementioned type, characterized in that, in each gripper, the release of the slider against the action of the spring stressing the same is obtained by direct engagement of a snug of said release lever with a pawl fixedly connected to the slider.
- said pawl fixedly connected to the slider also supports the spring stressing said slider.
- the pair of weft grippers comprises the carrying gripper P of figure 1 and the drawing gripper T of figure 2. Both these grippers have a general structure of known type, which comprises a body 1 of highly rigid synthetic plastic material, into which is mounted a metal slider 2 moving longitudinally, said slider being stressed by a spring 3 towards the tip 4 of the body 1, so as to engage with its own head 5 a counteracting surface 6 of said body and lock the weft yarn t between these two elements 5 and 6.
- the snug 7 is preferably formed in one piece with the lever 8.
- the grippers adopting this device are far lighter and more compact, as they can be constructed with positively reduced dimensions and weights, thereby achieving important advantages especially on looms with high working speed.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22229/87A IT1222876B (it) | 1987-10-12 | 1987-10-12 | Coppia di pinze portatrama per telai di tessitura senza navette |
IT2222987 | 1987-10-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0311945A1 true EP0311945A1 (en) | 1989-04-19 |
Family
ID=11193370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88116764A Withdrawn EP0311945A1 (en) | 1987-10-12 | 1988-10-10 | Pair of weft grippers for shuttleless looms |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0311945A1 (zh) |
JP (1) | JPH01156547A (zh) |
KR (1) | KR890006886A (zh) |
CN (1) | CN1033850A (zh) |
BR (1) | BR8805193A (zh) |
IT (1) | IT1222876B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000065330A (ko) * | 1999-04-01 | 2000-11-15 | 이규건 | 셔틀리스 직기에 사용되는 위사 반송 그리퍼 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102251337A (zh) * | 2011-07-25 | 2011-11-23 | 青岛铠硕纺机有限公司 | 纬纱夹持器 |
CN104805571B (zh) * | 2015-04-17 | 2016-04-06 | 徐向忠 | 一种无铰摇杆滑块机构及剑杆织机用接纬剑头 |
IT201700066823A1 (it) * | 2017-06-15 | 2018-12-15 | Itema Spa | Sistema perfezionato di presa/rilascio del filo di trama in un telaio tessile a proiettile |
CN111286846B (zh) * | 2020-04-15 | 2021-04-16 | 扬州市郭氏精密机械制造有限公司 | 一种织布用纱夹 |
CN112760787A (zh) * | 2021-02-01 | 2021-05-07 | 张家港市大新毛纺有限公司 | 一种新型剑杆织机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2544084A1 (de) * | 1975-09-29 | 1977-03-31 | Co Ma S A R L | Schusseintragsvorrichtung einer webmaschine |
GB2083844A (en) * | 1980-09-15 | 1982-03-31 | Nuovo Pignone Spa | Weft transfer devices in shuttleless looms |
EP0164628A2 (en) * | 1984-06-07 | 1985-12-18 | VAMATEX S.p.A. | Weft-carrying grippers for shuttleless weaving looms |
EP0233142A1 (de) * | 1986-02-13 | 1987-08-19 | GebràDer Sulzer Aktiengesellschaft | Greifer für den Schussfadeneintrag bei einer Greiferwebmaschine |
-
1987
- 1987-10-12 IT IT22229/87A patent/IT1222876B/it active
-
1988
- 1988-10-07 BR BR8805193A patent/BR8805193A/pt unknown
- 1988-10-07 JP JP63253666A patent/JPH01156547A/ja active Pending
- 1988-10-10 EP EP88116764A patent/EP0311945A1/en not_active Withdrawn
- 1988-10-11 KR KR1019880013252A patent/KR890006886A/ko not_active Application Discontinuation
- 1988-10-11 CN CN88108447A patent/CN1033850A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2544084A1 (de) * | 1975-09-29 | 1977-03-31 | Co Ma S A R L | Schusseintragsvorrichtung einer webmaschine |
GB2083844A (en) * | 1980-09-15 | 1982-03-31 | Nuovo Pignone Spa | Weft transfer devices in shuttleless looms |
EP0164628A2 (en) * | 1984-06-07 | 1985-12-18 | VAMATEX S.p.A. | Weft-carrying grippers for shuttleless weaving looms |
EP0233142A1 (de) * | 1986-02-13 | 1987-08-19 | GebràDer Sulzer Aktiengesellschaft | Greifer für den Schussfadeneintrag bei einer Greiferwebmaschine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000065330A (ko) * | 1999-04-01 | 2000-11-15 | 이규건 | 셔틀리스 직기에 사용되는 위사 반송 그리퍼 |
Also Published As
Publication number | Publication date |
---|---|
IT8722229A0 (it) | 1987-10-12 |
CN1033850A (zh) | 1989-07-12 |
KR890006886A (ko) | 1989-06-16 |
JPH01156547A (ja) | 1989-06-20 |
IT1222876B (it) | 1990-09-12 |
BR8805193A (pt) | 1989-05-23 |
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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 |
Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19890615 |
|
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: 19910503 |