US3834426A - Method and apparatus for connecting the one ends of heddles or rather spring tie-rods to elastic draw cords in a jacquard machine - Google Patents

Method and apparatus for connecting the one ends of heddles or rather spring tie-rods to elastic draw cords in a jacquard machine Download PDF

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Publication number
US3834426A
US3834426A US00310814A US31081472A US3834426A US 3834426 A US3834426 A US 3834426A US 00310814 A US00310814 A US 00310814A US 31081472 A US31081472 A US 31081472A US 3834426 A US3834426 A US 3834426A
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United States
Prior art keywords
cord
heddle
clamping
hook
roller
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Expired - Lifetime
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US00310814A
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English (en)
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O Muller
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Staeubli AG
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Staeubli AG
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/40—Constructions of lifting-cords
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/15—Cord heddle making

Definitions

  • the apparatus utilized for accomplishing this connection is a roller mechanism having a cord brake and two fixed guide rollers which are arranged so that they are spaced from one another.
  • a movable guide roller is arranged between the fixed guide rollers and serves to supply cord at a known tension and at a fixed length to the cord clamping and cutting mechanism.
  • a heddle-holding mechanism places a hookshaped end of a heddle in close association with the elastic cord. The cord is subsequently received in the hook on the heddle and clamped therein.
  • the basic purpose of the invention lies pre-eminently in producing a method of the type mentioned in the beginning which can be carried out economically by a structurally simple apparatus and moreover assures an increase of economy of the Jacquard machine.
  • the inventive method is directed to a final effect which is completely different from the frictional connection caused by the known method between the heddle or rather the spring tic-rod and the elastic cord, namely, to a frictional connection which can easily be released against the cord drawing direction but in all other directions is a positive connection between the elastic cord and the heddle or rather the spring tie-rod.
  • the end zones of both the heddles and also of the spring tie-rods can be deformed hooklike with the least amount of apparatus, time and work expense, for example, by bending back or back twisting, whereby during the bending backward attention must only be paid that this is done 'with a radius of curvature which is smaller compared with half of the cord diameter.
  • the elastic cord material is relatively incompressible, through the cross sectional deformation on both sides of the hook mouth of the heddle or rather the spring tie-rod, ridgelike projections are formed on the cord sheath, which projections assure the positive connection of the cord with the hook end of the heddle or rather the spring tie-rod in all directions with the exception of a direction opposite to the cord drawing direction.
  • a tubular section of a conventional type which can be widened at most up to the width of the hook mouth, is moved onto the hooklike heddle or rather tie-rod end until the tubular ends project on both sides over the free hook arm end.
  • This tubular section has with respect to the actual connection between the elastic cord and the heddle or rather spring tie-rod no function whatsoever, however, it prevents with certainty reciprocal catching of the hookends of the heddles which work closely side-by-side on the Jacquard machine.
  • the tubular section is furthermore anchored against movement on the heddle by the end of the free hook arm, which end rests against the inner wall of the tubular section, so that no adhesive is required which could possibly come in contact with the rubber material of the elastic cord.
  • a further, although subordinate, purpose of the invention is the production of a structurally simple apparatus for carrying out the afore-described method.
  • Such an apparatus consists in a conventional manner of a roller mechanism and a drawing mechanism for the cord and holding mechanism for the heddles and spring tie-rods.
  • This apparatus is suitable for carrying out the afore-described method because the roller mechanism has a cord brake and two fixed guide rollers which are arranged spaced from one another after said cord brake which has a movable guide roller arranged therebetween to define a cord loop and a pre-tensioning weight.
  • a cord clamping and cutting mechanism is arranged after the roller system and has an eyelet guide arrangement arranged at a distance in front thereof.
  • the latter and the cord clamping and cutting mecha- 3 movement path of the cord and that the holding mechanism is constructed for a heddle mounting which fixes the respective heddle which has a longitudinal zone spaced from the hooklike heddle end transversely of the drawing movement path of the cord and is supported swingably with the heddle into the drawing direction of the cord.
  • FIG. 1 is a schematic illustration of a weaving machine having a Jacquard machine mounted thereon and three heddles operated by one hook,
  • FIG. 2 is a schematic side view of one of the aforedescribed harness members having two connecting variations
  • FIG. 3 is an enlarged schematic side view of a portion of the harness member according to FIG. 1,
  • FIG. 4 is a cross-sectional view along the line IV-IV of FIG. 3,
  • FIG. 5 is a schematic side view of a changed embodiment of one harness portion
  • FIGS. 6 to 10 are each schematic side views of an apparatus for the manufacture of the harness portion according to FIG. 1 in various operating stages.
  • the weaving machine according to FIG. 1 has two supports 1 on which the Jacquard machine 2 is mounted. Only one single drawingmember 3 of the many drawing members or hooks instailed in the Jacquard machine is here illustrated and is shown here to operate, through the three cables 4, three heddles 5 for the warp threads.
  • the number of the cables (and of the heddles) per hook secured thereon, can vary depending on the use of the machine.
  • the cables are guided in holes 6 through the lower hole board in such a man ner that the heddles can move only at their predetermined places in the weaving machine.
  • Each. heddle is pulled downwardly by a spring-loaded drawing member 7, such as an elastic band or spiral spring.
  • the spring loaded member is connected through a connecting means 8 to an anchor 10.
  • the elements 3, 4t, 5, 7 and 8, which form one entire drawing unit, are connected at the points which are marked by a cross X to one another according to the inventive method.
  • FIG. 2 illustrates fragmentary portions of a heddle 5 in a scale which is a multiple of the actual scale for reasons of a better understanding and illustrates a one-end connection with one end of an elastic draw cord 7 and the connection between the draw cord 7 and a spring tie-rod 8, all forming a connection to the harness portion for a Jacquard machine.
  • the heddle 5 has, adjacent the central longitudinal zone, a thread guide 5a for receiving a warp thread of a weaving machine and further has, at the upper end, an eyelet 5b which serves as a connecting point to the single illustrated (FIG. 1) drawing member or hook of the Jacquard machine.
  • the lower end of the heddle 5 is bent into a hooklike form to form a wedge angle KW which opens upwardly toward the upper heddle end.
  • the radius-of curvature KR is less than half of the diameter KD of the elastic cord 7.
  • the-wedge angle KW is chosen to be smaller than the static friction angle between the heddle material and the cord material.
  • ridges 7a, 7b are formed in the cord sheath on both sides of the hooklike heddle end. Said ridges assure a good connection between the heddle 5 and the draw cord 7 which, with the exception of a cord drawing di rection KZR, in all other directions is positive connection. Due to the already earlier mentioned dimension of the wedge angle KW, there exists a self-locking frictional connection between the heddle 5 and the cord 7 against its drawing direction KZR which can be released by overcoming the frictional resistance of the cord in the hook mouth.
  • the connection between the elastic cord 7 and the spring tie-rod 8 is also true for the connection between the elastic cord 7 and the spring tie-rod 8, the upper end of which is bent hooklike in the same manner as the lower end of the heddle 5 and grips around the lower end zone of the cord 7 near the cord end by compressing the cord cross section.
  • a conventional protection for example, in the form of an elastic tubular section, can be mounted over either or both of the hook-shaped heddle end and the spring tie-rod end.
  • the tubular section can be widened in cross section at most to the width of the hook mouth and is dimensioned in its length in such a manner that it encloses the free hook arm end on both sides.
  • FIG. 5 illustrates a portion of a modified embodiment of a heddle S, the lower end zone of which is deformed hooklike by wrapping the heddle material about itself so that the free endof the hook material defines with the heddle the wedge angle KW which is open toward the other end of same.
  • An apparatus for the economical manufacture of the harness members consists, according to FIGS. 6 to 10, of a roller mechanism and a drawing mechanism 76, for example, a hand drawing mechanism, for the cord 7, and also of a holding mechanism for a heddle 5 and 5' according to FIGS. 2 and 5, respectively.
  • the roller mechanism 70 has a cord brake 70a and a roller system which consists of two fixed guide rollers 70b, 700 which are spaced from one another and are arranged after the cord brake 70 a (roller 70b also being a plate, or disk, brake).
  • the roller system also consists of a movable guide roller 70d which is arranged between said fixed guide rollers as a pre-tensioning weight in a cord loop 70.
  • the roller mechanism 70 is furthermore equipped with a cord clamping and cutting mechanism 70e which is arranged after the roller system 70b, 70c, 70d, and which has arranged at a distance in front thereof an eyelet guide arrangement 70f.
  • the fixed guide roller 70b which is arranged in front of the movable guide roller 70d is advantageously constructed as a plate brake for the cord 7.
  • the cord 7 is pulled off from a storage roller VR and is led through the cord brake 70a and through the roller system 70b, 70c, 70d through the eyelet guide arrangement 70f to the cord clamping and cutting mechanism 70e and clamped on same.
  • the loose guide roller 70d is lowered onto a stop 73 when the plate brake 70b is open and when the cord brake 70a is open so that a certain length of the cord 7 is unwound from the storage roller VR.
  • one of the spring tie-rods 8 is connected in the afore-described manner to the cord 7 between the cord clamping and cutting mechanism 70e and the eyelet guide arrange ment 70f and according to FIG. 7 is pulled by a drawing mechanism 76 having a drawing direction ZR together with the cord 7 through the open cord clamping and cutting mechanism 70e so that the movable guide roller 70d is lifted off from the stop 73 and feeds an exact length of the cord 7 and lends the cord 7 a known pretension.
  • the cord 7 is supported along its drawing movement path in the zone of the holding mechanism 75 against an abutment, for example, an inserting fork 79.
  • a heddle 5 is inserted according to FIG. 8 in the holding.
  • the holding mechanism 75 onto which heddle the tubular section 9 can, if necessary, already be placed.
  • the holding mechanism 75 is constructed in such a manner that it fixes the heddle 5 with a longitudinal zone projecting from the hook-shaped heddle end'transversely of the drawing movement path of the cord 7, as this can also be seen in FIG. 8.
  • the abutment, or rather the inserting fork 79, and the cord clamping and cord cutting mechanism 70e are supported for movement together in the sense of an axial settling out from the original drawing movement path to the path UZBB (indicated in dash-dotted lines in FIG. 9).
  • the movable guide roller 70d effects an unwinding of the cord from the storage roller VR and is lowered onto the stop 73.
  • Method for connecting an end of at least one of a heddle member and a spring tie-rod member to an elastic draw cord in a Jacquard machine comprising deforming said end of said member hooklike until a hook mouth with a wedge angle opening toward the other end of said member is formed and which wedge angle is smaller than the static friction angle between the cord and member material, and pressing an end zone of the cord transversely into the hook mouth of the associated member until a deformation of the cord cross section occurs.
  • Method according to claim 1 including bending said end of said member backwardly at an inner curvature radius which is smaller than half of the cord diameter.
  • the cord 7 is pressed into the hooklike end of the heddle 5 and is connected to same.
  • the abutment or rather the inserting fork 79 is furthermore also supported in such a manner that it, after the connection of the hooklike end of the heddle 5 with the cord 7, is movable to totally release the latter.
  • the cord clamping and cord cutting mechanism 702 is operated to effect a separation of the cord portion connected to the heddle 5 from the cord portion held by the clamp on the roller side.
  • a swingable support of the holding mechanism 75 permits same to be swung with the heddle 5 by the portion of the cord 7 connected therewith and being under drawing tension into its drawing direction ZR.
  • the plate brake 70b and the cord brake 70a are advantageously 3.
  • Apparatus for connecting an end of at least one of a heddle member and a spring tie-rod member to an elastic cord in a Jacquard machine comprising a roller mechanism and a drawing mechanism for the cord and a holding mechanism for the heddle, said roller mechanism having a cord brake and two fixed guide rollers spaced from one another along said cord and after said cord brake, said roller mechanism further including a movable guide roller arranged between said fixed guide rollers in a loop of said cord as a pretensioning weight, said roller mechanism further including a cord clamping and cutting mechanism which is arranged along said cord after said rollers and an eyelet guide arrangement arranged at a distance in front thereof along the cord, said cord being movable away from said clamping and cutting mechanism along a drawing path, said eyelet guide arrangement and said cord clamping and cutting mechanism being supported movably from out of said drawing movement path of the cord, said heddle member having a hooklike end, said holding mechanism comprising a heddle mounting which fixes the respective heddle member with a
  • Apparatus according to claim 4 including an abutment associated with the cord and which supports the side of the cord facing the holding mechanism in said longitudinal zone of said heddle member, said abutment being supported movably both for axial settling from the holding mechanism out of the original drawing movement path of the cord and also for total release of said cord.
  • Apparatus according to claim 5 in which the one of said fixed guide rollers preceding said movable guide roller comprises a disk brake for the cord.
  • Method according to claim 1 including advancing the free end of a continuous length of said cord to a clamping station and clamping same, applying a first one of said members to said cord upstream and adjacent the clamped end of said cord, unclamping said 7.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Supports For Pipes And Cables (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Looms (AREA)
  • Ropes Or Cables (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Clamps And Clips (AREA)
  • Stringed Musical Instruments (AREA)
US00310814A 1971-12-02 1972-11-30 Method and apparatus for connecting the one ends of heddles or rather spring tie-rods to elastic draw cords in a jacquard machine Expired - Lifetime US3834426A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1751571A CH539710A (de) 1971-12-02 1971-12-02 Verfahren und Vorrichtung zum Verbinden der einen Enden von Weblitzen bzw. Federankern mit elastischen Zugkordeln bei einer Jacquardmaschine

Publications (1)

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US3834426A true US3834426A (en) 1974-09-10

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US00310814A Expired - Lifetime US3834426A (en) 1971-12-02 1972-11-30 Method and apparatus for connecting the one ends of heddles or rather spring tie-rods to elastic draw cords in a jacquard machine

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Country Link
US (1) US3834426A (en:Method)
JP (1) JPS5235786B2 (en:Method)
AT (1) AT323088B (en:Method)
CH (1) CH539710A (en:Method)
CS (1) CS183751B2 (en:Method)
DD (1) DD100750A5 (en:Method)
DE (3) DE7235912U (en:Method)
ES (1) ES409083A1 (en:Method)
FR (1) FR2165827B1 (en:Method)
GB (2) GB1418684A (en:Method)
IT (1) IT971490B (en:Method)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961649A (en) * 1974-04-09 1976-06-08 Staeubli, Ltd. Heddle frame arrangement for a weaving machine
US4241481A (en) * 1977-09-22 1980-12-30 Staeubli Ltd. Method and apparatus for connecting the harness cords and the heddles of a harness
US6230755B1 (en) 1998-12-04 2001-05-15 N.V. Michel Van De Wiele Jacquard heddle connecting eye structure
US20040216797A1 (en) * 2003-04-30 2004-11-04 Staubli Corporation Shed-forming mechanism, weaving loom of jacquard type and method for adjusting the number or type of warp yarns of such a loom
DE102007039289B4 (de) * 2006-09-05 2010-03-18 Friedrich Reis Vorrichtung zum Spalten von abgelängten Holzstämmen o. dgl.
CN102773692A (zh) * 2012-07-25 2012-11-14 浙江旷达纺织机械有限公司 一种用于通丝装造的校眼设备的套管固定模板

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3733120A1 (de) * 1987-09-30 1989-04-13 Wangner Gmbh Co Kg Hermann Hilfsvorrichtung an einer nahtmaschine zum endlosmachen von flachgewebten kunststoffsieben mittels einer webnaht
FR2677999B1 (fr) * 1991-06-20 1993-10-08 Amstar Element de rappel a ressort pour lisse de metier a tisser equipe d'une mecanique jacquard.
JPH0633981U (ja) * 1992-10-06 1994-05-06 菊男 新居田 ジャカード用ヘルド
CN110333042B (zh) * 2019-08-05 2024-02-20 交通运输部天津水运工程科学研究所 一种用于模拟船锚坠落的离心模型试验装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US434065A (en) * 1890-08-12 Machine for making meddles for looms
CH69157A (de) * 1914-07-03 1915-06-01 Julius Grob Jacquardlitze mit angehängtem Gewicht, sowie Verfahren und Vorrichtung zu deren Herstellung
US2030977A (en) * 1932-08-09 1936-02-18 Atlanta Harness Mail eye clinching device and method of forming cotton harness having metal eyes
GB850138A (en) * 1957-10-15 1960-09-28 Victor Wittendal Improvements in respect of jacquard harness
GB956904A (en) * 1962-08-03 1964-04-29 Devoge & Co Ltd Improvements in or relating to jacquard mechanism for looms for weaving
GB991051A (en) * 1963-04-20 1965-05-05 Samuel Dracup & Sons Ltd Improvements in or relating to lingoes for looms
US3537487A (en) * 1967-08-04 1970-11-03 Mecaniques Verdol Soc Looms operating with a jacquard

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US434065A (en) * 1890-08-12 Machine for making meddles for looms
CH69157A (de) * 1914-07-03 1915-06-01 Julius Grob Jacquardlitze mit angehängtem Gewicht, sowie Verfahren und Vorrichtung zu deren Herstellung
US2030977A (en) * 1932-08-09 1936-02-18 Atlanta Harness Mail eye clinching device and method of forming cotton harness having metal eyes
GB850138A (en) * 1957-10-15 1960-09-28 Victor Wittendal Improvements in respect of jacquard harness
GB956904A (en) * 1962-08-03 1964-04-29 Devoge & Co Ltd Improvements in or relating to jacquard mechanism for looms for weaving
GB991051A (en) * 1963-04-20 1965-05-05 Samuel Dracup & Sons Ltd Improvements in or relating to lingoes for looms
US3537487A (en) * 1967-08-04 1970-11-03 Mecaniques Verdol Soc Looms operating with a jacquard

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961649A (en) * 1974-04-09 1976-06-08 Staeubli, Ltd. Heddle frame arrangement for a weaving machine
US4241481A (en) * 1977-09-22 1980-12-30 Staeubli Ltd. Method and apparatus for connecting the harness cords and the heddles of a harness
US6230755B1 (en) 1998-12-04 2001-05-15 N.V. Michel Van De Wiele Jacquard heddle connecting eye structure
US20040216797A1 (en) * 2003-04-30 2004-11-04 Staubli Corporation Shed-forming mechanism, weaving loom of jacquard type and method for adjusting the number or type of warp yarns of such a loom
DE102007039289B4 (de) * 2006-09-05 2010-03-18 Friedrich Reis Vorrichtung zum Spalten von abgelängten Holzstämmen o. dgl.
CN102773692A (zh) * 2012-07-25 2012-11-14 浙江旷达纺织机械有限公司 一种用于通丝装造的校眼设备的套管固定模板

Also Published As

Publication number Publication date
DD100750A5 (en:Method) 1973-10-05
DE2264971A1 (de) 1976-01-02
CH539710A (de) 1973-07-31
DE7235912U (de) 1973-02-22
DE2264971C3 (de) 1978-08-17
JPS5235786B2 (en:Method) 1977-09-10
CS183751B2 (en) 1978-07-31
JPS4863058A (en:Method) 1973-09-03
ES409083A1 (es) 1976-03-01
DE2206639A1 (de) 1973-08-02
DE2264971B2 (de) 1977-12-22
AT323088B (de) 1975-06-25
GB1418685A (en) 1975-12-24
DE7205300U (de) 1973-01-11
FR2165827B1 (en:Method) 1974-08-02
DE2206639B2 (de) 1976-03-11
FR2165827A1 (en:Method) 1973-08-10
GB1418684A (en) 1975-12-24
IT971490B (it) 1974-04-30

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