EP1433883B1 - Litze und Litzen-Rahmen für Webstuhl - Google Patents

Litze und Litzen-Rahmen für Webstuhl Download PDF

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Publication number
EP1433883B1
EP1433883B1 EP03356211A EP03356211A EP1433883B1 EP 1433883 B1 EP1433883 B1 EP 1433883B1 EP 03356211 A EP03356211 A EP 03356211A EP 03356211 A EP03356211 A EP 03356211A EP 1433883 B1 EP1433883 B1 EP 1433883B1
Authority
EP
European Patent Office
Prior art keywords
heald
frame
sections
bar
bearing
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
EP03356211A
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English (en)
French (fr)
Other versions
EP1433883A1 (de
Inventor
Jean-Paul Froment
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.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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 Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP1433883A1 publication Critical patent/EP1433883A1/de
Application granted granted Critical
Publication of EP1433883B1 publication Critical patent/EP1433883B1/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
    • D03C9/02—Healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0633—Heald bars or their connection to other frame parts

Definitions

  • the invention relates to a rail, a frame and a loom equipped with such a frame.
  • US-A-4,519,424 teaches introducing the ends of a rail in channels provided in the upper and lower rails of a frame.
  • An anti-rotation device of the rails can be used.
  • DE-A-15 35 847 discloses, in turn, various geometries of smooth ends.
  • the tensile force exerted by the frame to drive the rails passes through contact surfaces of small total area.
  • the width of the contact surfaces and tensile force transmission between the sleepers and the rails can not be increased taking into account the dividing width of the frames and the density of the smooth over the width of the loom.
  • the rails and the attachment parts of sleepers of known heald frames have a tendency to wear quickly and this results in an increase in play and breaks in heddles. It is therefore advisable to provide regular preventive maintenance operations, which leads to repeated fixed assets of the looms concerned.
  • the invention intends to remedy more particularly by proposing a new system for attaching the rails to the sleepers of the corresponding frames which makes it possible to limit the wear induced by the vertical oscillations movements of these materials.
  • the invention relates to a smooth for a loom equipped with at least one smooth frame having two crosspieces each of which is intended to be hung this smooth by its ends.
  • This rail is characterized in that it is provided at each end with at least two simultaneous support sections on at least two corresponding surfaces formed on a pull bar integral with one of the crosspieces, these sections being suitable transmitting a tensile force exerted by one of the sleepers on the beam, while these sections are offset in a direction generally parallel to a longitudinal axis of the beam.
  • the invention also relates to a heald frame adapted to cooperate with a heald as previously described and, more specifically, to a heald frame comprising two uprights and two sleepers equipped with bars on which hinges can be hung, characterized in that each bar is provided with at least two simultaneous support surfaces for corresponding sections of the rails, these surfaces being able to transmit a tensile force exerted by the bar on a rail, whereas they are offset in one direction generally parallel to a longitudinal axis of one of the abovementioned amounts.
  • these bearing surfaces are regularly distributed on either side of a median plane of the bar.
  • these surfaces may not be symmetrical with respect to this median plane.
  • the bearing surfaces may be generally perpendicular to the axis of the amount or, for one of them at least, oblique with respect thereto.
  • the invention also relates to a heald frame as mentioned above equipped with healds as previously described.
  • the invention relates to a loom equipped with at least one heald frame as previously described.
  • a loom has higher performance, it is more reliable and more economical to operate than those of the prior art.
  • a dobby 1 is intended to drive a heald frame 2 of a loom M in an oscillating vertical movement represented by the arrows F 1 and F ' 1 .
  • an actuating arm 1a of the dobby 1 is coupled by connecting rods and rocker arms to the frame 2.
  • the loom M frames has several, usually between 6 and 24, only one of these frames being shown in Figure 1 for clarity of the drawing.
  • Each frame 2 is formed by the assembly of two uprights 21 and 21 'and two crosspieces 22 and 22'.
  • the uprights 21 and 21 ' have their respective longitudinal axes X 21 and X 21 , generally parallel to the direction ZZ' of vertical oscillations of the frame 2, whereas the crosspieces 22 and 22 'extend generally in two directions Y 22 and Y 22 ' perpendicular to the direction ZZ' and the warp son of the trade, the directions Y 22 and Y 22 ' being in practice horizontal in use configuration of the trade.
  • the upper cross member 22 is equipped with a bar 23 on which are hung the rails 3.
  • the bar 23 is symmetrical with respect to a median plane P 23 parallel to the directions Y 22 and Z-Z '. In the plane of FIG. 2, the trace of the plane P 23 coincides with the axis ZZ '.
  • the bar 23 extends over substantially the entire length of the cross member 22 and is provided with four side ribs 23 a, 23 b, 23 c and 23 d which extend from a middle portion 23 e, in two directions X 23 and X 23 ' perpendicular to the plane P 23 .
  • the respective upper surfaces of the ribs 23 a to 23 d which surfaces are noted 23 g , 23 h , 23 i and 23 j , are also perpendicular to the plane P 23 and therefore to the direction ZZ 'and to the axes X 21 and X 21 ' .
  • the surfaces 23 g and 23 i are offset with respect to the surfaces 23 h and 23 j in the direction of the axes X 21 and X 21 ' .
  • Smooth 3 shown in Figure 2 comprises a filamentary element 31 which extends in the Z-Z 'direction and which is provided with an eyelet 32 for passage of a warp 4.
  • the upper end 33 of the rail 3 is provided for its attachment to the bar 23 and comprises two branches 33 1 and 33 2 defining between them a volume V 33 for receiving the bar 23.
  • branch 33 is provided with two teeth 33 a and 33 b oriented towards the branch 33 2.
  • branch 33 2 is provided with two teeth 33 c and 33 d oriented branch 33 1.
  • the teeth 33 a and 33 c are opposite from each other, as well as the teeth 33 b and 33 d.
  • 33 g , 33 h , 33 i and 33 j are respectively noted the edges of the teeth 33 a to 33 d on the side of the bottom 33 e of the volume V 33 .
  • X 3 is the longitudinal axis of the rail 3, this axis being included in the plane P 23 and coincides with the direction ZZ 'in the representation of Figure 2.
  • edges 33 g to 33 j are perpendicular to the axis X 3 and offset two by two along it since they extend in two directions X 33 and X 33 , which are perpendicular to this axis and offset, as the directions X 23 and X 23 ' .
  • the distance d 23 between the directions X 23 and X 23 is substantially the same as the distance d 33 between the directions X 33 and X 33 ' .
  • edges 33 g to 33 j form four bearing sections on the corresponding surfaces 23 g to 23 j of this bar, these sections and these surfaces being parallel between them, perpendicular to the axes X 21 , X 21 ' and X 3 and offset along these axes.
  • Two sets of sections and surfaces 23 g , 23 i , 33 g and 33 i are at a first level, while the other sections and surfaces 23 h , 33 h , 23 d and 33 d are at another level.
  • a lateral play j is possible between the ribs 23 a to 23 d and the branches 33 1 and 33 2 without any negative influence on the reliability of the attachment, since a lateral displacement of the bar 3 with respect to the bar 23 results in a simple change in the distribution of support between the branches 33 1 and 33 2 , the bearing surface area remaining substantially the same.
  • the clearance j allows an angular movement of the arm 3 around its axis X 3 .
  • the ribs of the bar 23 of a cross member 22 may be six in number and distributed over three levels, extending on either side of a median plane P 23 of the bar 23 and having their upper surface perpendicular to this plane and to the longitudinal axes of the frame amount considered.
  • the branches of the attachment portion 33 of a rail 3 are each provided with three teeth, whose lower edges are perpendicular to the longitudinal axis X 3 of the rail and are provided to form support sections on the rails. upper surfaces of the ribs.
  • the intermediate support sections 33 h and 33 j are oblique with respect to the axis X 3 .
  • the corresponding bearing surfaces 23h and 23j are also oblique, with the same angle of obliquity with respect to the median plane P 23 of the bar 23.
  • the number and position of the Section torques / oblique bearing surfaces result from a design choice.
  • the bar 23 of a cross member 22 may be asymmetrical, the attachment portion 33 of a smooth 3 then having generally a shape of C with a first section 33 k provided to cap a corresponding part 23 k of the bar 23.
  • the portion 33 is also provided with an intermediate tooth 33 l which projects towards the center of the portion 33, that is to say in particular of the axis X 3 of the stringer 3 considered, and which is intended to penetrate into a longitudinal groove 23 l of the bar 23.
  • edges 33 m and 33 1 constitute support sections on the surfaces 23 m and 23 n , these sections and these surfaces being offset along the axis X 3 which is parallel to the axes X 21 and X 21 , amounts of the frame considered, these edges and these surfaces being perpendicular to the considered axes.
  • the attachment portion 33 of a rail 3 is in the form of a closed loop with an upper section intended to cap a bar 23 which is suspended from the main part at the crosspiece 22 by tabs 24 distributed over its length.
  • the portion 33 is provided with two internal teeth intended to penetrate into longitudinal grooves of the part 23, like the tooth 33 1 of the embodiment of FIG. 4.
  • sections and bearing surfaces are provided which are offset with respect to the longitudinal axis X 3 of the rail and the longitudinal axes X 21 and X 21 ' of frame uprights, these sections and these surfaces being generally perpendicular to these axes.
  • the lower parts of the rails have substantially the same geometry as the upper parts and the crossbar 22 'is equipped with a bar similar to the bar 23 described herein. above, which allows to have a similar snap at the bottom of the smooth.
  • a plurality of intermediate teeth may be provided.
  • the teeth 33 a and 33 c provided on the arms 33 1 and 33 2 of a heddle 3 may be staggered relative to each other.
  • the bearing sections 33 g and 33 i formed by these teeth are also staggered, just as the bearing surfaces 23 g and 23 i formed by the bar 23 of the crossbar considered.
  • the sections and surfaces offset parallel to the axes of the healds and the amounts of the frames also serve to transmit a tensile force, sleepers to the rails, of the type of the force T mentioned in FIG. reference to the first embodiment.
  • FIGS. 2 to 4, 5 and 6 have the advantage that the attachment zones of the hinges are of the open type, which allows easy disassembly and reassembly, in particular for maintenance operations.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Wire Processing (AREA)

Claims (16)

  1. Litze für eine Webmaschine (M), die mit mindestens einem Schaftrahmen (2) ausgerüstet ist, der zwei Traversen (22, 22') umfasst, wobei die Litze an jede der Traversen angekoppelt ist, dadurch gekennzeichnet, dass die Litze (3) an jedem Ende (33) mit mindestens zwei Abschnitten (33g - 33j) zum gleichzeitigen Abstützen auf mindestens zwei korrespondierenden Flächen (23g - 23j, 23 m, 23n)versehen ist, die an einer mit einer (22) der Traversen (22 - 23) verbundenen Zugleiste (23) eingearbeitet sind, wobei die Abschnitte geeignet sind, eine von einer der Traversen (22, 22') ausgeübte Kraft (T) auf die Litze (3) zu übertragen und gemäß einer im Wesentlichen parallel zu einer Längsachse (X3) der Litze liegenden Richtung versetzt sind.
  2. Litze nach Anspruch 1, dadurch gekennzeichnet, dass der Bereich (33) zum Ankoppeln der Litze (3) an einer Traverse (22 - 23) zwei Zweige (331, 332) umfasst, die zwischen sich ein Volumen (V33) zur Aufnahme der Leiste (23) begrenzen.
  3. Litze nach Anspruch 2, dadurch gekennzeichnet, dass jeder Zweig (331, 332) mit mindestens einem Zahn (33a, 33b, 33c, 33d) versehen ist, der zum anderen Zweig gerichtet ist und einen der Abstützabschnitte (33g, 33h, 33i, 33j) definieren.
  4. Litze nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass mindestens einer der Zweige (331, 332) mit mindestens zwei Zähnen (33a, 33b, 33c, 33d) versehen ist, die zu dem anderen Zweig (332, 331) gerichtet sind und jeweils einen Abstützabschnitt (33g, 33h, 33i, 33j) definieren.
  5. Litze nach Anspruch 3, dadurch gekennzeichnet, dass die an mindestens einigen der Zweige (331, 332) vorgesehenen Zähne (33a - 33d) einander gegenüberliegen.
  6. Litze nach einem der Ansprüche 3 oder 5, dadurch gekennzeichnet, dass mindestens einige der auf den Zweigen (331, 332) vorgesehenen Zähnen (33a, 33c, 33d) versetzt angeordnet sind.
  7. Litze nach Anspruch 1, dadurch gekennzeichnet, dass der Koppelbereich (33) der Litze im Ganzen gesehen eine C-Form oder geschlossene Schleifenform mit einem Abschnitt (33k), der geeignet ist, einen korrespondierenden Bereich (23k) der Traverse (22, 23) zu überdecken, und mindestens einen Zwischenzahn (331) aufweist, der in Richtung der Mitte des Bereichs vorspringt und einen Abstützabschnitt (33n) bildet.
  8. Litze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abstützabschnitte (33g - 33j, 33m, 33n) im Wesentlichen senkrecht zu der Achse (X3) sind.
  9. Litze nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass mindestens einer der Abschnitte (33g - 33j) schräg in Bezug auf die Achse (X3) ist.
  10. Schaftrahmen für eine Webmaschine, wobei der Rahmen zwei Pfosten (21, 21') und zwei Traversen (22, 22') umfasst, die mit Leisten (23) ausgerüstet sind, an die Litzen (3) angekoppelt werden können, dadurch gekennzeichnet, dass jede Leiste mit mindestens zwei Flächen (23g - 23j, 23m, 23n) zum gleichzeitigen Abstützen von korrespondierenden Abschnitten (33g - 33j, 33m, 33n) der Litzen versehen ist, wobei die Flächen geeignet sind, eine von der Leiste (23) ausgeübt Zugkraft (T) auf eine Litze (3) zu übertragen, und gemäß einer im Wesentlichen parallel zu einer Längenachse (X21, X21') eines der Pfosten (21, 21') versetzt sind.
  11. Rahmen nach Anspruch 10, dadurch gekennzeichnet, dass die Abstützflächen (23g - 23j) regelmäßig beidseitig zu einer Mittelebene (P23) der Leiste (23) versetzt sind.
  12. Rahmen nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, dass die Abstützflächen (23g, 23i; 23m, 23n) nicht symmetrisch in Bezug auf eine Mittelebene (P23) der Leiste sind.
  13. Rahmen nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, dass die Abstützflächen (23g - 23j, 23m, 23n) im Wesentlichen senkrecht zur Achse (X21, X21') eines der Pfosten (21, 21') sind.
  14. Rahmen nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass mindestens eine der Abstützflächen (23g - 23j, 23m, 23n) schräg in Bezug auf die Achse (X21, X21') eines der Pfosten ist.
  15. Rahmen (2) nach einem der Ansprüche 10 bis 13, ausgerüstet mit Litzen nach einem der Ansprüche 1 bis 9.
  16. Webmaschine (M), ausgerüstet mit mindestens einem der Ansprüche 10 bis 15.
EP03356211A 2002-12-24 2003-12-23 Litze und Litzen-Rahmen für Webstuhl Expired - Lifetime EP1433883B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0216661 2002-12-24
FR0216661A FR2849067B1 (fr) 2002-12-24 2002-12-24 Lisse, cadre de lisses et metier a tisser equipe d'un tel cadre

Publications (2)

Publication Number Publication Date
EP1433883A1 EP1433883A1 (de) 2004-06-30
EP1433883B1 true EP1433883B1 (de) 2007-01-24

Family

ID=32406509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03356211A Expired - Lifetime EP1433883B1 (de) 2002-12-24 2003-12-23 Litze und Litzen-Rahmen für Webstuhl

Country Status (7)

Country Link
US (1) US6981527B2 (de)
EP (1) EP1433883B1 (de)
JP (1) JP4610184B2 (de)
CN (1) CN100503919C (de)
AT (1) ATE352648T1 (de)
DE (1) DE60311403T2 (de)
FR (1) FR2849067B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329219B4 (de) * 2003-06-28 2007-04-05 Groz-Beckert Kg Schaftstab mit beweglichem Litzendämpfungselement
FR2857675B1 (fr) * 2003-07-18 2006-01-13 Staubli Sa Ets Cadre lisses et metier a tisser pourvu d'au moins un tel cadre
US7837812B2 (en) 2004-05-21 2010-11-23 Ati Properties, Inc. Metastable beta-titanium alloys and methods of processing the same by direct aging
CN110129949B (zh) * 2019-05-24 2020-11-20 常熟市知识产权运营中心有限公司 一种组装式综框

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US887102A (en) * 1907-09-24 1908-05-12 William Shinn Lackey Heddle.
CH155094A (de) 1931-05-04 1932-06-15 Stalder R O Webgeschirr.
US2426546A (en) * 1944-01-12 1947-08-26 Elgin Nat Watch Co Art of making jewel bearings
US2426456A (en) * 1945-09-24 1947-08-26 Steel Heddle Mfg Co Loom harness
US2461497A (en) 1946-07-03 1949-02-08 Steel Heddle Mfg Co Loom harness
US2552487A (en) * 1946-11-16 1951-05-08 Steel Heddle Mfg Co Heddle
US2840114A (en) * 1955-09-01 1958-06-24 Steel Heddle Mfg Co Loom harness
CH467368A (de) * 1968-01-19 1969-01-15 Sulzer Ag Verfahren für den Betrieb einer Webmaschine und Webmaschine zur Durchführung des Verfahrens
US3548885A (en) * 1968-11-12 1970-12-22 Curt Wagner Heddles for loom harness
JPS5040185B2 (de) 1973-01-18 1975-12-22
DE3277538D1 (en) * 1981-08-19 1987-12-03 Nissan Motor Heald assembly of loom
JPS61225344A (ja) * 1986-02-20 1986-10-07 日産自動車株式会社 綜絖枠への綜絖の取付構造
US4790357A (en) 1987-08-06 1988-12-13 Steel Heddle Mfg., Inc. Harness frame slat and heddle
DE4023512C1 (de) * 1990-07-24 1991-12-12 Grob & Co Ag, Horgen, Zuerich, Ch
DE4035582C1 (de) * 1990-11-08 1991-10-17 Grob & Co Ag, Horgen, Zuerich, Ch
DE4119550A1 (de) * 1991-06-13 1992-12-17 Grob & Co Ag Kontaktlamelle fuer einen elektrischen kettfadenwaechter
BE1010007A3 (nl) * 1996-01-19 1997-11-04 Picanol Nv Weefkader voor weefmachines.
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

Also Published As

Publication number Publication date
FR2849067B1 (fr) 2005-04-29
CN1510188A (zh) 2004-07-07
DE60311403D1 (de) 2007-03-15
EP1433883A1 (de) 2004-06-30
JP4610184B2 (ja) 2011-01-12
US20040154681A1 (en) 2004-08-12
US6981527B2 (en) 2006-01-03
DE60311403T2 (de) 2007-11-08
JP2004204424A (ja) 2004-07-22
ATE352648T1 (de) 2007-02-15
CN100503919C (zh) 2009-06-24
FR2849067A1 (fr) 2004-06-25

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