US3628574A - Method for the fabrication of weaving heddles - Google Patents

Method for the fabrication of weaving heddles Download PDF

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Publication number
US3628574A
US3628574A US866345A US3628574DA US3628574A US 3628574 A US3628574 A US 3628574A US 866345 A US866345 A US 866345A US 3628574D A US3628574D A US 3628574DA US 3628574 A US3628574 A US 3628574A
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United States
Prior art keywords
stock
heddles
terminal
eye
heddle
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Expired - Lifetime
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US866345A
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English (en)
Inventor
Paul Ramseier
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Braecker AG
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Braecker AG
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Publication date
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    • 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

  • Kleeman ABSTRACT A novel method is disclosed for fabricating weaving heddles from wire stock by passing the wire through a rolling mill to give the stock a substantially elongated, that is, a comparatively thin and wide cross section. Then a plurality of longitudinal notches are embossed in the stock spaced apart a distance generally equal to the desired length of the heddles, whereupon each notch is spread by means of a wedging tool into an elongated slot to form an eye and there is inserted an eyelet member therein. Thereafter, the individual heddles are cut apart generally midway between consecutive eyes. Each end of the heddle is then formed into a terminal eye by bending between appropriate tool members. The heddles may also be formed from precut sheet stock by bending the ends thereof into terminal eyes by means of tool members generally similar to those used for the wire stock.
  • This invention concerns an improved method for the fabrication of heddles,.and particularly for the fabrication of heddles havingan elongate cross section.
  • flat steel heddles for use in looms with weaving harnesses.
  • flat steel heddles have the advantage of requiring less space and can, therefore, be set in a row more closely to each other, thus allowing much tighter setting of the weave of the fabric.
  • terminal eyes of flat steel heddles are as a rule less subject to wear then those of round heddles.
  • the flat steel heddles are better suited for use in conjunction with automatic threading machines than are round wire heddles.
  • the terminal eyes are formed of the blank or stock material by edgewise bending the terminal sections thereof.
  • the inventive method for fabricating weaving heddles from wire stock contemplates passing the wire through a rolling mill to give the stock a comparatively thin and wide cross section, embossing a plurality of longitudinal notches in the stock spaced apart a distance generally equal to the desired length of the heddles, spreading each notch by means member therein,
  • the heddles may also be formed from precut sheet stock by bending the ends thereof into terminal eyes by means of appropriate tool members generally similar to those utilized in forming the heddles from'wire stock.
  • FIGS. 1, 2 and 3 illustrate the drawing, embossing and eyecxpanding steps, respectively, of the method
  • FIG. 4 is a cross-sectional view through the threading eye of the heddle formed according to this invention, showing the eyelet member inserted therein;
  • FIGS. 5 through 7 illustrate the manner the heddles are formed to terminal eyes
  • FIG. 8 is a side elevational view of a heddle formed according to the instant invention.
  • FIG. 9 is an enlarged vertical elevational view of the upper terminal eye of the heddle, shown in position upon a heddle rail;
  • FIGS. 10 through 12 are vertical elevations] views illustrating two modifications of the terminal eye.
  • FIGS. 13 and 14 illustrate a modified method for forming terminal eyes in a heddle formed of precut sheet stock material.
  • FIGS. 1 through 7 The preferred method of fabricating the heddles according to this invention is depicted in FIGS. 1 through 7.
  • the heddles are fonned from a length of round steel wire stock 1, shown in section in dots and dashes in FIG. 1, having a diameter of 0.75 mm., for example, and a tensional strength of to 250 kg./mm., for example.
  • a first working station comprising a rolling mill and preferably comprising rollers 2 and 3, shown in FIG. I
  • this wire stock I is rolled down to a thickness of, for example, approximately half the original diameter of the wire.
  • This rolling results in aflat steel band, which in FIGS. 1 and 2, is generally indicated by reference numeral 4, and which comprises two parallel, comparatively wide longitudinal sides 5 and two rounded, comparatively narrow sides 6.
  • the flat steel band 4 which is at this point still in the form of an indefinite length of stock material, is provided with an embossing or stamping.
  • the embossing is created by a pair of opposing embossing tools 7 and 8, which produce longitudinal notches 9 extending along longitudinal sides 5 a distance approximately equal to the length of the desired threading eye. These notches are located approximately along the central axis of these sides and are located at a distance from each other somewhat larger than the length of the heddles to be produced.
  • a wedging or expanding tool 10 which is inserted into the notches 9 in such a way that these notches are expanded to form elongated slots extending completely through the thickness of the flat steel band 4, said slots being widened by deformation of the material of band 4.
  • the widening of the notches 9 produces an elongated slot 11.
  • the width of the flat steel band 4 is increased in the vicinity of this notched section.
  • Expanding or wedging tool 10 carries thereupon rearwardly of the wedging section, an eye insert member 12 which is pressed into the slot 11 and which is retained therein by concavely curved or bent outer edges of the thread eye insert member 12 which edges engage the inner edges of slot 11.
  • Each thread eye insert 12 is thereby prevented from falling out of the slot until it is permanently fastened in a separate operation, as for example, by soldering.
  • FIGS. 5 through 7 depict the three work steps which serve to bend the end of these heddles into terminal eyes.
  • the individual heddles are referred to by reference numeral 4.
  • One end portion of section 4, which is inserted into the first set of bending tools 15, 16 in an upright or edgewise position, as shown in FIG. 5, is bent between pins 17 and 18, which are movable towards each other, to form an offset portion 19 and a leg 21.
  • pins 17 and 18 which are movable towards each other
  • the offset portion 19 is held between pins 17' and 18', similar to-pins 17 and 18 of FIG. 5, and leg 21 is bent at a 90 angle by tool 22.
  • this leg 21 is then bent through an additional 90 by tool 23, so that now it extends back parallel to the flat steel section 4'.
  • the radius of the bends is determined by pin 18'. In the course of all of these bending operations depicted in FIGS.
  • the flat steel band 4' is supported laterally along the sections to be bent by additional tool parts, not illustrated, in order to prevent a deviation or deflection from the bend plane, and restrained against movement parallel to pins 17, 18 and 17', 18'.
  • said eyes are additionally treated to give them a precise inner cross section.
  • a punching or cutting stamp is passed through the eye while the stock forming the eye is kept immobile in a die or the like, not depicted.
  • FIG. 8 is a vertical or elevational view of a finished heddle, fabricated by the work steps according to FIGS. 1 through 7 and having its terminal eyes punched to a precise dimension as described above.
  • the thus gauged or calibrated eyes 30 which are fonned on both ends of the flat steel band 4, are constructed in the contour depicted in FIG. 9 on an enlarged or magnified scale, in order to engage a conventional heddle support rail 31, shown in section.
  • the heddle of FIG. 8, constructed according to the method depicted in FIGS. 1 through 7 does not require any finishing or smoothing operations or to be reworked because it does not, especially in its central part, exhibit sharp edges. The only exception to this is in the interior of each terminal eye which has been punched out, which requires slight smoothing, as by filing.
  • FIG. 10 depicts a terminal eye 30 which is connected to the central part 36 of the heddle by a bent or offset part 35, but which otherwise exhibits the same form as the terminal eye 30 of FIG. 9.
  • the embodiment of the terminal eye shown in FIGS. 11 and 12 corresponds, in this case, more to the form of heddle still used in forming round wire heddles; the terminal eye 32 thereof completely embraces or surrounds the heddle support rail 33.
  • FIGS. 13 and 14 depict a blank or unfinished part, which is punched out of band steel, wherein the width of the band steel stock corresponds to the width of the middle part 37 of the heddle.
  • the narrowed or tapered terminal eye section 37, as well as the hook 38, have been previously formed out of the band steel during the punching opera tion.
  • a terminal eye'section 37' can be formed or bent into the terminal eye 39, shown in FIG. 14, by bending in the direction of the wide or larger cross section dimension.
  • the hook 38 formed thereby engages in the lateral groove 40 of the heddle support rail 33.
  • the difference in width of the terminal eye 39 determines the saving in material, which can be achieved by the edgewise bending of the terminal eye, as opposed to the conventional method of punching out this eye.
  • a method of fabricating weaving heddles from wire stock of indefinite length comprising the steps of rolling the wire stock to a comparatively wide and thin cross section, having two parallel wide longitudinal surfaces and two rounded narrow surfaces; embossing longitudinal notches along said wide surfaces; spreading said notches to form elongated slots extending through said stock, said stock being widened in the vicinity of said slots; cutting through said stock generally midway between said slots to form individual heddles; and bending each end portion of each heddle to a terminal eye.
  • a method for the fabrication of weaving heddles having terminal eyes at at least one end thereof from a unitary metal blank possessing a substantially elongate cross section, wherein said terminal eyes are formed by bending the end portions of each heddle in the plane of the material of the metal blank.
  • said blank is formed from a length of wire stock of substantially circular cross section by passing said wire stock through a roller mill and thereby imparting to said wire stock a comparatively wide and thin cross section.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Looms (AREA)
US866345A 1968-10-18 1969-10-14 Method for the fabrication of weaving heddles Expired - Lifetime US3628574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1559068A CH514700A (de) 1968-10-18 1968-10-18 Verfahren zum Herstellen von Weblitzen

Publications (1)

Publication Number Publication Date
US3628574A true US3628574A (en) 1971-12-21

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ID=4410370

Family Applications (1)

Application Number Title Priority Date Filing Date
US866345A Expired - Lifetime US3628574A (en) 1968-10-18 1969-10-14 Method for the fabrication of weaving heddles

Country Status (6)

Country Link
US (1) US3628574A (fr)
CH (1) CH514700A (fr)
DE (1) DE1950903A1 (fr)
ES (1) ES372607A1 (fr)
FR (1) FR2021008B1 (fr)
GB (1) GB1265838A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6550123B2 (en) * 2001-01-30 2003-04-22 Lionel Freeman Wire rod forming process
US20050274700A1 (en) * 2002-10-04 2005-12-15 Daniel Simoen Method for manufacturing components consisting of one piece which appear in a weaving machine
US20100065145A1 (en) * 2007-03-14 2010-03-18 Deneire Michael Method and apparatus to deform the cross section of one or more longitudinal sections of an oblong object
US7963301B2 (en) 2008-09-23 2011-06-21 Groz-Beckert Kg Jacquard heald with embossed thread eye region

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919867A1 (de) * 1979-05-17 1980-12-11 Rau Swf Autozubehoer Wischarm, insbesondere fuer kraftfahrzeuge
DE4335010C1 (de) * 1993-10-14 1994-11-24 Schmeing Gmbh & Co Weblitze
FR2776676B1 (fr) † 1998-03-31 2000-05-26 Staubli Lyon Procede de fabrication d'une lisse, lisse et dispositif de formation de la foule pour metier a tisser
DE102016002561B4 (de) 2015-10-19 2018-10-31 Steintex Walter vom Stein KG Verfahren zum Herstellen von Weblitzen und damit hergestelltes Erzeugnis

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US687215A (en) * 1901-07-18 1901-11-26 Steel Heddle Mfg Co Method of making heddles.
US809668A (en) * 1905-05-23 1906-01-09 Edmond Charpentier Heddle-making machine.
US875659A (en) * 1905-12-22 1907-12-31 Steel Heddle Mfg Co Machine for manufacturing heddles.
US2041860A (en) * 1931-06-29 1936-05-26 Steel Heddle Mfg Co Heddle and method of making the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US687215A (en) * 1901-07-18 1901-11-26 Steel Heddle Mfg Co Method of making heddles.
US809668A (en) * 1905-05-23 1906-01-09 Edmond Charpentier Heddle-making machine.
US875659A (en) * 1905-12-22 1907-12-31 Steel Heddle Mfg Co Machine for manufacturing heddles.
US2041860A (en) * 1931-06-29 1936-05-26 Steel Heddle Mfg Co Heddle and method of making the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6550123B2 (en) * 2001-01-30 2003-04-22 Lionel Freeman Wire rod forming process
US20050274700A1 (en) * 2002-10-04 2005-12-15 Daniel Simoen Method for manufacturing components consisting of one piece which appear in a weaving machine
US7285745B2 (en) * 2002-10-04 2007-10-23 N.V. Michel Van De Wiele Method for manufacturing components consisting of one piece which appear in a weaving machine
US20100065145A1 (en) * 2007-03-14 2010-03-18 Deneire Michael Method and apparatus to deform the cross section of one or more longitudinal sections of an oblong object
US8707750B2 (en) * 2007-03-14 2014-04-29 Darvan Invest N.V. Method and apparatus to deform the cross section of one or more longitudinal sections of an oblong object
US7963301B2 (en) 2008-09-23 2011-06-21 Groz-Beckert Kg Jacquard heald with embossed thread eye region

Also Published As

Publication number Publication date
FR2021008A1 (fr) 1970-07-17
FR2021008B1 (fr) 1973-03-16
GB1265838A (fr) 1972-03-08
CH514700A (de) 1971-10-31
DE1950903A1 (de) 1970-04-30
ES372607A1 (es) 1971-11-01

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