US3507304A - Picker - Google Patents

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Publication number
US3507304A
US3507304A US729639A US3507304DA US3507304A US 3507304 A US3507304 A US 3507304A US 729639 A US729639 A US 729639A US 3507304D A US3507304D A US 3507304DA US 3507304 A US3507304 A US 3507304A
Authority
US
United States
Prior art keywords
picker
insert
pickers
picker body
fabric
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
US729639A
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English (en)
Inventor
Walter Haag
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.)
Albert Haag KG
Original Assignee
Albert Haag KG
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 Albert Haag KG filed Critical Albert Haag KG
Application granted granted Critical
Publication of US3507304A publication Critical patent/US3507304A/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
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/24—Mechanisms for inserting shuttle in shed
    • D03D49/26—Picking mechanisms, e.g. for propelling gripper shuttles or dummy shuttles
    • D03D49/36—Pickers; Arresting means therefor

Definitions

  • the present invention relates to a picker for textile machinery.
  • pickers for textile machinery.
  • fabric picker two types are to be differentiated, viz. softer pickers with a low amount of fabric, and harder pickers with a high amount of fabric.
  • the said softer pickers yield a somewhat softer catch of the shuttle but have an unsatisfactory life span.
  • the harder fabric pickers while having a satisfactory life span, are too hard for many looms, which means that they require a high thread tension with the cops in order to avoid flying-off of the cops.
  • the polyethylene pickers have the drawback that in most instances, they are too hard and make too much 110186.
  • Vulkollan pickers while being low in noise and yielding a soft catching of the shuttle impacting upon the picker, have the drawback that in most instances, they have a rather limited life span.
  • FIGURE 1 is a longitudinal section through the picker
  • FIGURE 2 is an end view of FIGURE 1 as seen in the direction of the arrow A;
  • FIGURE 3 is a right-hand end view (with regard to the drawing) of the insert according to the invention.
  • FIGURE 4 is a top view of FIGURE 1;
  • FIGURE 5 is a longitudinal section through a modified picker according to the invention.
  • FIGURE 6 is an end view of the larger end of FIG- URE 5
  • FIGURE 7 is a top view of FIGURE 5;
  • FIGURE 8 is a longitudinal section through still another modified picker.
  • FIGURE 9 is an end view of FIGURE 8 as seen in the direction of the arrow B.
  • the picker has a long life. Tests have proved that the wear by the shutter tip is particularly low with this type of picker because the insert is embedded in an elastic picker body. The most important advantage of the picker according to the present invention is seen in its high shock absorption, which has not been realized with any of the heretofore known pickers having a long life.
  • the high elastic, relatively soft picker body 1 is provided with an insert 2.
  • the insert takes up the entire front surface of the picker.
  • the picker is by means of an oblong stud 3 anchored by its marginal area 4 in the picker body.
  • the stud as well as the marginal area have laterally straight side 4a in order to prevent a turning of the insert.
  • the insert 2a is by means of a T-shaped rail 5 extending over the entire height of the picker, connected to the picker body 1.
  • the insert is secured against displacement by means of one or more transverse ribs 6. These ribs 6 will not prevent the insertion of the insert 2a in the picker body 1 from the top or from below inasmuch as the picker body which consists of a rubber elastic material will yield to the necessary extent so that the picker body can be hammered into the insert or vice versa.
  • the picker according to FIG. 8 has a circular insert 2b which by means of a truncated cone 7 rests against the picker body 1.
  • the stud of the insert is safely anchored in a complementary socket in the front face of the headed picker body by the protruding marginal portion 8 and forms a snap connecting means by expanding the margin of the recess in the picking body to engage behind the marginal portion.
  • the insert is approximately as wide as the picker body, and covers at least two-thirds of the front face of the picker body, as shown in FIGURE 8.
  • the picker body is on the top side thereof between the insert and the picking stick provided with a recess 9 which brings about that when employing the picker, the insert will yield uniformly on all sides when the shuttle is subjected to pressure. Without recess 9, the picker body would have only a low yieldability on the top side as well as on the bottom side.
  • a polyurethane elastomer in the hardening range between and Shore is employed for the picker body.
  • the truncated cone of the insert according to FIG. 8 has a conical angle of from to 150, preferably The relatively obtuse conical angle is selected for the purpose of preventing the depth of the insert in the direction of the shuttle movement from becoming too deep, in order to assure that between the insert and the picker stick a sufficient cushion remains for the shock absorption.
  • the inserts 2, 2a, 2b of the picker are made either of high molecular low pressure polyethylene with a molecular weight of more than one million or are made of polyamide, especially a soft (weichismes) polyamide.
  • a picker for looms particularly a loop picker, which includes: an elastomeric picker body of relatively soft synthetic material, an interchangeable insert of highly wear resistant relatively hard material arranged to cover at least two-thirds of the front end of said picker body and connected thereto while extending over substantially the entire width of said picker body, and snap connecting means releasably joiningsaid insert to said elastomeric picker body and including a substantially rounded projection complementary between said insert and said picker body.
  • a picker according to claim 2 in which there is a truncated cone portion of said insert having a configuration complementary to the front end of said picker body and having angular range of said truncated cone portion at least between 120 and 150, particularly between 130 and 140.
  • a picker according to claim 2 in which said insert has a truncated cone portion with the narrower diameter thereof facing the said picker body and also has a discshaped protruding marginal portion connected integrally to said truncated cone portion near the narrower diameter and firmly engaged with snap fit by said picker body.
  • said snap connecting means comprises a headed stud receivable in a complementary socket in the front face of the picker body which upon snap-fit engagement of said snap connecting means with respect to said picker body is so tight as to be secure against relative rotation and turning of the insert with respect to said picker body.
  • a picker according to claim 5 in which side flattening of said rounded projection at least in part assures against rotation and turning of said insert with respect to said snap fit into said picker body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
US729639A 1967-05-17 1968-05-16 Picker Expired - Lifetime US3507304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0059015 1967-05-17

Publications (1)

Publication Number Publication Date
US3507304A true US3507304A (en) 1970-04-21

Family

ID=7160376

Family Applications (1)

Application Number Title Priority Date Filing Date
US729639A Expired - Lifetime US3507304A (en) 1967-05-17 1968-05-16 Picker

Country Status (5)

Country Link
US (1) US3507304A (da)
BE (1) BE711120A (da)
CH (1) CH480471A (da)
FR (1) FR1563481A (da)
GB (1) GB1196836A (da)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664382A (en) * 1970-11-13 1972-05-23 Mayo B Tell Loom picker
US3698443A (en) * 1971-04-16 1972-10-17 Dayco Corp Loom picker
US3754579A (en) * 1972-03-27 1973-08-28 North American Rockwell Loom picker
JPS5199284A (ja) * 1975-02-27 1976-09-01 Sumitomo Electric Industries Keeburujidoseiretsumakitorini okeru shosomakitorisochi
CN107083611A (zh) * 2017-06-07 2017-08-22 郑州豫达纺织机械有限公司 一种有梭织机用镶嵌复合注塑成型双头投梭结及其制备方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB253264A (en) * 1925-03-31 1926-06-17 George Spencer Moulton & Co Improvements in pickers for looms
FR646667A (fr) * 1927-12-29 1928-11-14 Taquet lance-navette
CH217200A (de) * 1940-11-28 1941-10-15 Schlenker Edwin Unterschlag-Schützentreiber für Webstühle.
US2534203A (en) * 1947-06-17 1950-12-12 Bullard Clark Company Picker
US2968322A (en) * 1958-04-30 1961-01-17 Armstrong Cork Co Loom picker
US3020932A (en) * 1960-02-19 1962-02-13 Rivera Jose Luis Herrerra Loom picker
US3167096A (en) * 1962-02-28 1965-01-26 Draper Corp Loom picker
US3229726A (en) * 1963-06-25 1966-01-18 Coyt E Murray Loom picker
GB1019850A (en) * 1964-01-01 1966-02-09 Unitex Ltd Improvements in pickers for looms for weaving
US3302667A (en) * 1965-09-21 1967-02-07 Livermore Corp H F Picker-stick block for looms

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB253264A (en) * 1925-03-31 1926-06-17 George Spencer Moulton & Co Improvements in pickers for looms
FR646667A (fr) * 1927-12-29 1928-11-14 Taquet lance-navette
CH217200A (de) * 1940-11-28 1941-10-15 Schlenker Edwin Unterschlag-Schützentreiber für Webstühle.
US2534203A (en) * 1947-06-17 1950-12-12 Bullard Clark Company Picker
US2968322A (en) * 1958-04-30 1961-01-17 Armstrong Cork Co Loom picker
US3020932A (en) * 1960-02-19 1962-02-13 Rivera Jose Luis Herrerra Loom picker
US3167096A (en) * 1962-02-28 1965-01-26 Draper Corp Loom picker
US3229726A (en) * 1963-06-25 1966-01-18 Coyt E Murray Loom picker
GB1019850A (en) * 1964-01-01 1966-02-09 Unitex Ltd Improvements in pickers for looms for weaving
US3302667A (en) * 1965-09-21 1967-02-07 Livermore Corp H F Picker-stick block for looms

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664382A (en) * 1970-11-13 1972-05-23 Mayo B Tell Loom picker
US3698443A (en) * 1971-04-16 1972-10-17 Dayco Corp Loom picker
US3754579A (en) * 1972-03-27 1973-08-28 North American Rockwell Loom picker
JPS5199284A (ja) * 1975-02-27 1976-09-01 Sumitomo Electric Industries Keeburujidoseiretsumakitorini okeru shosomakitorisochi
JPS5711820B2 (da) * 1975-02-27 1982-03-06
CN107083611A (zh) * 2017-06-07 2017-08-22 郑州豫达纺织机械有限公司 一种有梭织机用镶嵌复合注塑成型双头投梭结及其制备方法
CN107083611B (zh) * 2017-06-07 2018-03-30 郑州豫达纺织机械有限公司 一种有梭织机用镶嵌复合注塑成型双头投梭结及其制备方法

Also Published As

Publication number Publication date
GB1196836A (en) 1970-07-01
FR1563481A (da) 1969-04-11
BE711120A (da) 1968-08-21
CH480471A (de) 1969-10-31

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