EP0484644B1 - Weblitze - Google Patents

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Publication number
EP0484644B1
EP0484644B1 EP91114508A EP91114508A EP0484644B1 EP 0484644 B1 EP0484644 B1 EP 0484644B1 EP 91114508 A EP91114508 A EP 91114508A EP 91114508 A EP91114508 A EP 91114508A EP 0484644 B1 EP0484644 B1 EP 0484644B1
Authority
EP
European Patent Office
Prior art keywords
heald
inner edge
end loop
back portion
symmetry line
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
EP91114508A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0484644A1 (de
Inventor
Bernhard Koch
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.)
Grob and Co AG
Original Assignee
Grob and Co 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 Grob and Co AG filed Critical Grob and Co AG
Publication of EP0484644A1 publication Critical patent/EP0484644A1/de
Application granted granted Critical
Publication of EP0484644B1 publication Critical patent/EP0484644B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds

Definitions

  • the invention relates to a heald with J- or C-shaped end loops arranged at the ends of the heald shaft for mounting on the heald support rail of a heald frame by gripping the rail with one or two opposite free legs in the end loop.
  • the healds of the type mentioned above with a straight end eyelet shape have small radii on the inner edges of the end eyelet opening and have a relatively large amount of play compared to the heddle support rail, so that they can adjust freely and adjust to the thread tensile forces in the warp direction.
  • the present invention was therefore based on the object of designing a heald on each of the end loops in such a way that it withstands significantly higher loads without the risk of breakage and, moreover, also has sufficient play with respect to the heddle support rail, so that jamming and the resulting negative effects are excluded .
  • the heald has the features of claim 1.
  • the inner edge contour of the end eyelet on the side of the back part preferably has an arc with a larger radius of curvature than the radius of curvature of the arc on the opposite side of the free leg.
  • This larger arch can preferably also have a radius of curvature which becomes increasingly larger towards the center of the strand, so that a course of the inner edge which is similar to a parabola arises.
  • the inner edge between the arches has a straight edge section, at the two ends of which lie asymmetrically with respect to the longitudinal line of symmetry. With the straight edge section and the different curves on the opposite sides of the longitudinal symmetry line, the heald has enough free play on the heald support rail to prevent the disadvantages of jamming and the formation of fabric strips.
  • the inner edge of the end eyelet in the area 3 that comes into contact with the narrow side of the heddle support rail has an asymmetrical contour with respect to the longitudinal line of symmetry 4.
  • the arch 8 on the side of the back part 5 preferably has a larger radius of curvature R1 than the radius R2 of the arch 9 on the opposite side of the free leg 6. In any case, there is an asymmetry with respect to the distance of the centers of curvature from the longitudinal symmetry line 4.
  • the arches 8 and 9 of the inner edge 3 can have a circular shape.
  • the arch 8 on the side of the back part has a shape with a parabola-like course and gradually merges into the straight part of the boundary edge of the back part 5.
  • the arch 8 can also extend with its right end beyond the longitudinal line of symmetry 4.
  • the arc 9 can also have a smaller radius of curvature R2 because the stress on the side of the free leg 6 is significantly smaller.
  • the inner edge which comes into contact with the heald support rail has a rectilinear section 10 between the arch 8 and the arch 9.
  • This rectilinear section is preferably asymmetrical arranged with respect to the longitudinal line of symmetry 4, that is, at the end points lying at a different distance from the longitudinal line of symmetry, the two arches 8 and 9.
  • the straight section 10 and the described shape of the arches of the inner edge 3 give the heald enough free play on the heald support rail to enter Jamming of the heald and to prevent the formation of fabric strips in the fabric produced.
  • FIG. 2 in the end eyelet according to FIG. 1, the shape of the corner arches 11 and 12, which hitherto was customary with healds, is shown in broken lines in order to make the difference clear.
  • the C-shaped end eyelet according to FIG. 3 has two inner edges of the end eyelet opening lying opposite one another and coming into contact with the heddle support rail 14.
  • the inner edge facing the strand shaft can be designed in the same way as described above, but it is also possible to dispense with the special configuration of the inner edge described above and to provide an inner edge provided with conventional circular arcs according to FIG. 2, since the opposite the middle of the strand of the end loop is less stressed.
  • Fig. 4 shows the above-described J-shaped end eyelet 1 on a heddle support rail 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Sewing Machines And Sewing (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Paper (AREA)
EP91114508A 1990-11-08 1991-08-29 Weblitze Expired - Lifetime EP0484644B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4035582A DE4035582C1 (ru) 1990-11-08 1990-11-08
DE4035582 1990-11-08

Publications (2)

Publication Number Publication Date
EP0484644A1 EP0484644A1 (de) 1992-05-13
EP0484644B1 true EP0484644B1 (de) 1994-06-08

Family

ID=6417899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91114508A Expired - Lifetime EP0484644B1 (de) 1990-11-08 1991-08-29 Weblitze

Country Status (8)

Country Link
US (1) US5176183A (ru)
EP (1) EP0484644B1 (ru)
JP (1) JPH0726277B2 (ru)
KR (1) KR920010052A (ru)
CN (1) CN1028120C (ru)
CZ (1) CZ280208B6 (ru)
DE (1) DE4035582C1 (ru)
TW (1) TW201335B (ru)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9413705U1 (de) * 1994-08-25 1994-10-20 Textilma Ag Schaftvorrichtung
DE19917868B4 (de) * 1999-04-20 2007-05-10 Grob Horgen Ag Weblitzen für paarweisen Einsatz
DE19932685A1 (de) * 1999-07-13 2001-01-18 Grob Horgen Ag Horgen Weblitzensystem
FR2849067B1 (fr) * 2002-12-24 2005-04-29 Staubli Sa Ets Lisse, cadre de lisses et metier a tisser equipe d'un tel cadre
DE102005033175B3 (de) * 2005-07-13 2006-11-30 Groz-Beckert Kg Weblitze, insbesondere für schnell laufende Webmaschinen
CZ305126B6 (cs) * 2008-11-03 2015-05-13 Technická univerzita v Liberci Nitěnka pro tkací stroj

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE570356C (de) * 1931-11-17 1933-02-15 Max Spaleck Fa Stahldrahtlitze
US2964066A (en) * 1958-04-15 1960-12-13 Braecker Ag Steel wire heald
CH410814A (de) * 1963-12-19 1966-03-31 Grob & Co Ag Weblitze und Verfahren zu deren Herstellung
DE1535841A1 (de) * 1964-06-26 1970-09-17 Froehlich Ag E Schiebereiter fuer Webschaefte
CH423661A (de) * 1965-07-13 1966-10-31 Froehlich Ag E Webelitze für reiterlosen Webschaft
CH642407A5 (de) * 1980-03-05 1984-04-13 Grob & Co Ag Webelitze.
JPH0754306Y2 (ja) * 1990-03-30 1995-12-18 グロブ・アンド・カムパニー・アクチエンゲゼルシヤフト ヘルド

Also Published As

Publication number Publication date
KR920010052A (ko) 1992-06-26
CN1061249A (zh) 1992-05-20
DE4035582C1 (ru) 1991-10-17
CS335991A3 (en) 1992-05-13
EP0484644A1 (de) 1992-05-13
CN1028120C (zh) 1995-04-05
TW201335B (ru) 1993-03-01
JPH0625935A (ja) 1994-02-01
US5176183A (en) 1993-01-05
CZ280208B6 (cs) 1995-12-13
JPH0726277B2 (ja) 1995-03-22

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