EP1573100B1 - Weblitze - Google Patents

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Publication number
EP1573100B1
EP1573100B1 EP03782273A EP03782273A EP1573100B1 EP 1573100 B1 EP1573100 B1 EP 1573100B1 EP 03782273 A EP03782273 A EP 03782273A EP 03782273 A EP03782273 A EP 03782273A EP 1573100 B1 EP1573100 B1 EP 1573100B1
Authority
EP
European Patent Office
Prior art keywords
heald
spring means
strand
slide bar
eyelet
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
EP03782273A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1573100A1 (de
Inventor
Thomas Schmid
Gerhard Pohl
Johannes Dr. Bruske
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.)
Groz Beckert KG
Original Assignee
Groz Beckert 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 Groz Beckert KG filed Critical Groz Beckert KG
Publication of EP1573100A1 publication Critical patent/EP1573100A1/de
Application granted granted Critical
Publication of EP1573100B1 publication Critical patent/EP1573100B1/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
    • D03C9/06—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
    • 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
    • D03C9/02—Healds
    • D03C9/022—Healds anti-buckling
    • 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
    • D03C9/0691—Arrangements of means for damping or noise reduction

Definitions

  • the invention relates to a stranded wire, as it can be found in particular as healds in looms application.
  • the end eyelet shape is adapted to the heald bar with an end loop surrounds the heald stirrup backlash and the opposite Endender the heald encloses its associated Litzentragschiene with a game that is adapted to the maximum deflection of the Litzentragschiene.
  • the deflection of the Litzentragschienen depends primarily on the performance of the weaving machines and increases in increasing the same. It is thus extremely difficult, the deflection, the game of a Endente the heald to DE 195 48 176 decisively determined to define in advance. It is, if at all, very often detectable only during operation of the weaving machine.
  • a heald known, with a Litzenschaft and end eyelets each overlap a Litzentragschiene one-sided.
  • the distance between the inner abutment surfaces of the end loops of each other is greater than the distance between the two outer edges of the two Litzentragschienen so that the strands sit with play on the Litzentragschienen.
  • a compression spring is arranged on an end eye, which is supported with one end to the end eyelet and with its other end to the heddle rail. The compression spring thereby biases the opposite end eye against the heddle support rail.
  • healds are known with annularly closed end eyelets.
  • the end eyelets are formed as a rectangular ring with two long, parallel to each other Thighs connected by a short bridge at the top.
  • the short bridge is slightly bent towards the inside of the ring. In this way, a certain spring action can be achieved, with which the End Harbor is resiliently clamped on the heddle support rail.
  • This object is achieved with a stranded wire according to claim 1.
  • the particular advantage of this solution according to the invention is that it manages without changing the weaving machine, in particular without changing the heald.
  • the provided on the End Harbor or integrally connected spring means allows the play-free mounting of the strand relative to the direction of movement of the heald, which coincides with the longitudinal direction of the strand. A rattling, hitting and thus incorporation of the heddle head into the heddle support rail is thereby reduced or suppressed.
  • the spring means causes a tolerance compensation, so that the End Harbor between two opposing surfaces can be kept taut, with smaller deviations of the heddle head or distance variations between the two pressure surfaces are compensated by the spring means.
  • the provided on the End encompass spring means creates the prerequisite to be able to tighten end loops and thus strands on the heald support rail.
  • a clamping means in the form of a movably mounted pressure rail may be provided on the heddle support rail, which clamps the end eyelets in place.
  • the spring means provided at the end eyelets allow tolerance compensation, so that all end eyelets are tightened relatively evenly. This creates the conditions for a mechanical clamping device in which a single clamping member, or a single clamping rail clamps all the end loops.
  • the spring means also provides some buffering during abrupt acceleration or deceleration. It is designed to be compliant with respect to the longitudinal direction of each strand. Different embodiments are possible. In preferred embodiments, the spring means is formed by a planar portion of the heddle head provided with one or more recesses for increasing axial compliance. The advantage of this embodiment is that the pitch of the strands can be very narrow, i. the spring means does not require lateral space. Alternatively, however, it may also be formed by a spring tongue, which is curved laterally, for example. The merit of this embodiment may be an increased compliance of the spring means.
  • the invention can be realized both on only one end loop of a stranded wire and on both end eyelets provided on the ends of the stranded wire.
  • the strand is provided at one end only with an end eye according to the invention, while the other end is without end eye.
  • the free end of the strand can be mounted axially displaceably in a guide. In this way, relative movements between opposing cross members of a heald are not transmitted to the strand. Such relative movements can occur as a result of dynamic loads when high accelerations are acting.
  • the strands are formed kink-resistant. You can therefore transfer not only tensile but also compressive forces. Buckling resistance is achieved, for example, by a bending edge running in the longitudinal direction of the heddle or a curvature of the strand.
  • the strands are formed in the two sections, which are each between the end eyelet and the eye, with different cross sections.
  • two different cross-sections are used with different cross-sectional areas, wherein a portion of a Endulate to the eye usually has a constant cross-section.
  • the cross sections may differ, for example, by the cross-sectional shape. Additionally or alternatively, they may differ with respect to the area of the cross-sectional area.
  • the strand can consist of a flat material of constant thickness, wherein the strand sections, seen from the flat side, have different widths.
  • the end eyelets provided with the spring means allow, as mentioned, a clamping by a clamping device provided on the heald.
  • the clamping device preferably has a cooperating with the spring means, or the end eyelets rigid clamping piece, which can be operated mechanically, for example via a wedge clamping device or via a fluidbeaufschlagtes means.
  • the rigid design of the clamping piece has the advantage that at times relatively large forces can be absorbed, ie the end loops can be clamped with great forces.
  • FIG. 1 schematically shows a weaving shank 1 with two support or shaft rods 51 and 51 ', two associated heddle support rails 3 and 4 and strands of the invention. 2
  • FIG. 2 is a section of the heald 1 illustrated, which has a plurality of spaced apart parallel strands 2.
  • the heald 1 has an upper Litzentragschiene 3 and a lower Litzentragschiene 4, which hold the upper and lower end of the strand 2.
  • the strand 2 consists of a flat material which extends between the heddle support rails 3, 4 in the form of a flat strip (strand body). Approximately in the middle of an eye 5 is provided. At at least one end, for example at the upper end 6, the stranded wire 2 has an end eyelet 7, which serves to fasten the stranded wire 2 to the heddle support rail 3 and from which the heddle body 10 extends.
  • the end eyelet 7 is in FIG. 3 illustrated in more detail. It has a respect. the longitudinal direction Y of the strand 2 open recess 8, with which the strand 2 is held on a strip 9, which is preferably integrally connected to the upper strand support rail 3.
  • the strip 9 has an upstanding in the longitudinal direction Y of the strand 2 rib, which is connected via a web 11 with a parallel to the bar 9 oriented extension 12 of the Litzentragschiene 3. At its top, the bar 9 is rounded. Likewise, the mouth-like recess 8 of the end eye 7 is rounded in this area.
  • a spring means 14 is formed on the side remote from the recess 8 side, with which the end eyelet 7 is supported on one of the strip 9 opposite pressure surface 15.
  • the pressure surface 15 is, for example, on the Litzentragschiene 3 formed.
  • the spring means 14 is formed for example by a portion of the end eyelet 7 and the heddle head, which is provided with an opening 16. This section extends following the recess 8 away from the eye 5 and is preferably made of the same material as the rest of the end eyelet 7.
  • the opening 16, which may be formed for example in the form of a round hole is surrounded by a closed edge 17 , which is arcuately curved on its outer side and at a location 18, the pressure surface 15 touches.
  • the edge 17 has a certain flexibility.
  • the spring means 14 which is formed by the opening 16 provided with the portion of the end eye 7, this. Compensate for excess.
  • the end eyelet 7 then sits under tension on the bar 9 or: on the Litzentragschiene 3. A back and forth of the End Harbor 7 in the longitudinal direction Y is thereby excluded.
  • the End Harbor7 sits securely on the bar 9 and even if the recess 8 is limited in the limited between the bar 9 and the extension 12 gap only by a short leg 20. This in turn allows the design of very short, compact end eyelets 7 and correspondingly small heald bars 3, which can lead to a reduction of moving masses.
  • the lower heald support rail 4 ( FIG. 2 ) can in principle be designed like the upper heddle support rail 3. It however, it is advantageous, the strand 2 at its end of the loop 7 opposite end not play-free but with limited or, as in FIG. 2 illustrates also leading to unlimited play.
  • the lower Litzentragschiene 4 is provided with a receiving rail 21, which has a longitudinally Y extending guide opening 22 for each strand 2.
  • the guide opening coincides in cross section approximately with the cross section of the strand 2, wherein it has a certain excess, so that the strand 2 is held in the guide opening 22 movable.
  • the heald 1 makes a reciprocating movement in the direction of the longitudinal direction Y of the heald 2.
  • each thread passing through the eyelet 5 is moved outwardly or downwardly out of a warp thread plane.
  • the movement takes place almost leaps and bounds with high acceleration and braking forces.
  • the required forces are thereby introduced into the heddle 2 on the heddle support rail 3, on which the heddle 2 is kept free of play.
  • the end eyelet 7 is supported on the strip 9.
  • a spring effect is hardly noticeable here.
  • the end eyelet 7 is supported via the point 18 on the pressure surface 15.
  • the spring means 14 does not give way or only insignificantly.
  • the stiffness of the spring means 14 can be adjusted for example by the size of the opening 16. The width of the remaining edge 17 then determines the compliance.
  • FIG. 4 is a modified embodiment of a Litz 2 illustrated.
  • Its end eye 7 has a differently shaped spring means 14, wherein the strand is otherwise formed in accordance with the above description.
  • the spring means 14 is in turn formed like a compression spring 23, in that a section extending from the eye 5, following the recess 8, the end eyelet 7 is provided with lateral cutouts.
  • the end eyelet 7 is completely flat, with its two lateral, mutually opposite and in the longitudinal direction Y staggered cutouts 24, 25 overlap each other.
  • the remaining S-shaped section is supported at its upper end again on the pressure surface 15.
  • a further modified embodiment of the strand 2 and the heddle support rail 3 illustrated FIG. 5 Again, it is an end eyelet 7, the spring means 14 is in the same plane as the end eyelet 7 itself.
  • the legs 27, 28 are supported on a triangular in cross-section pressure bar 29, which may be part of the strip 9 or the heddle support rail 3.
  • the dimensions are in turn chosen so that the pressure bar 29 under bias between the legs 27, 28 engages, so that the end eye 7 is held without play on the bar 9.
  • the legs 27, 28 spring slightly away from each other and towards each other, which is implemented by the inclined surfaces of the pressure bar 29 in an axial compressive force with which the end eyelet 7 with its point 19 against the bar 9 is pressed.
  • FIG. 8 A further modified embodiment of the spring means 14 is made FIG. 8 seen.
  • a neither openings nor incisions having portion 31 of the end eye 7 or a according to FIGS. 3 to 5 trained portion is bent laterally out of the plane of the remaining end eye 7 out and thus forms a curved spring tongue, with which the end eyelet 7 is supported on the pressure surface 15.
  • All strands 2 described above can be required and preferably bezügl. its buckling strength under compression in longitudinal direction Y be stiffened. They can do this in FIG. 7 have illustrated cross-section.
  • the strand 2 is at the end of her head, the section AA in FIG. 5 vaulted.
  • the strand 2 is curved in a channel shape, resulting in increased kink resistance.
  • the curvature optionally extends, with the exception of the eyelet 5, preferably over the entire length of the strand 2, as far as the end eyelet 7 or into it.
  • a bending edge 32 according to FIG. 6 be provided, which extends in the longitudinal direction Y.
  • the bending edge 32 is preferably arranged approximately centrally, so that it passes through the eye 5. In an alternative embodiment, it is also possible to provide two bending edges 32, so that a total of approximately z-shaped cross-section of the strand 2 results. The advantage of this embodiment is that the bending edges 32 can extend past the eye 5, which gives the strand 2, in particular in the region of the eye 5, a particular rigidity.
  • FIG. 12 Another embodiment of a heald 2 according to the invention is shown in FIG FIG. 12 shown.
  • this strand 2 is optimized in terms of their weight.
  • the distance C which is from the point 19 at which the strand touches the heddle support 3 in the upper region, to the point 19 'at which the strand 2 touches the heddle in the lower region, divided into two sections A and B.
  • the first section A which extends from the eyelet to the beginning of the end loop, has a narrow cross-section S1.
  • section B which lies on the opposite side of the eye and also extends from the eye region to the beginning region of the end eye, the strand 2 has a wider cross-section S2.
  • the narrow portion with S1 is half as wide as the portion with S2.
  • the cross sections may additionally or alternatively have different shapes. According to the embodiment FIG. 12 The shape of the cross section changes in the vicinity of the eyelet 5 and in the transition region between the end loop and the remaining strand 2. It is also possible to change the cross sections lying within the section C of the strand 2 at other locations.
  • the above-described different cross sections can be realized on strands 2 with spring means of different shapes.
  • the cross sections of the individual sections A, B may be square, rectangular, oval, circular, elliptical, kidney-shaped, T-shaped, U-shaped or similar.
  • FIG. 9 a rail 33 on which the pressure surface 15 is formed, and the bar 9 of the Litzentragschiene 3 with respect to each other adjustable so that their distance can be intentionally reduced or increased. This is in FIG. 9 illustrated by an arrow 34.
  • the adjustment is particularly advantageous for equipping the heddle support rail 3 with strands 2.
  • FIG. 10 illustrates such a heddle support rail 3 and the associated rail 33 in a perspective view.
  • the rail 33 belongs to a clamping device 35, the FIG. 11 is apparent.
  • the rail 33 is formed for stiffening, for example, by a U-profile, the legs 36, 37 of the serving as a pressure surface 15 back protrude.
  • the rail 33 is associated with a reverse oriented, further formed as a U-profile rail 38, the legs 41, 42 between the legs 36, 37 fit.
  • elongated holes 43 are formed with respect to the longitudinal direction of the rail 38 are inclined.
  • the slots 43 are associated with the legs 36, 37 held pins 44 which pass through the slots 43.
  • the pins 44 form with the oblong holes 43 a wedge device, which lead to a longitudinal displacement of the rails 33, 38 against each other, that the rails 33, 38 away from each other or to each other.
  • a wavy curved leaf spring 45 disposed between the rails 33, 38 may be provided to bias the rails 33, 38 away from each other. Furthermore, a threaded bolt 46 serve to adjust the rails 33, 38 against each other. Thus, a rotation of the threaded bolt 46 causes an adjustment of the rail 33 and thus at the same time a distance or approach of the pressure surface 15 to the strip 9 of the heddle support rail 3, 4th
  • FIG. 13 Yet another embodiment of a strand 2 with c-shaped end eyelet 7 is illustrated. From this, the elongated heddle body 10 extends away in a first direction.
  • the heddle body 10 may, for example, be arranged in alignment with the heddle support rail 3 or offset therefrom.
  • the spring means 14 formed by the compression spring 23 immediately adjoins the end eyelet 7. It is preferably arranged on the side facing away from the strand body of the end eye 7.
  • the illustrated spring means 14 is merely an embodiment. It may be used in place of the compression spring 23, all other disclosed in the present specification spring means 14 and their modifications application.
  • the spring means 14 may serve to eliminate the play of the End Harbor 7 on the Litzentragschiene 3 and to dampen the Litzenterrorism.
  • the spring means 14 may be biased in a first embodiment, so that the end eyelet 7 is constantly pressed against the heddle support rail 3 at least when the heald shaft 1 is stationary. But it is also possible to leave between the spring means 14 and the pressure surface 15 a certain amount of play, which is preferably less than the length of the heddle measured clearance of the end lug 7 on the heald bar 3.
  • a bar such as in accordance with FIG. 4 to provide, which is formed integrally with the shaft rod, for example made of aluminum or an aluminum alloy. This applies correspondingly for all the above embodiments.
  • An improved stranded wire 2 has at its end eyelet 7 a spring means 14 which supports the end eyelet 7 in at least one direction resiliently on a heddle support rail 3.
  • the spring means 14 serves to avoid play between the strand 2 and the heald 1. This measure allows an increase in the operating speed of looms.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Springs (AREA)
EP03782273A 2002-12-19 2003-12-02 Weblitze Expired - Lifetime EP1573100B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10260024A DE10260024B4 (de) 2002-12-19 2002-12-19 Weblitze
DE10260024 2002-12-19
PCT/EP2003/013555 WO2004057076A1 (de) 2002-12-19 2003-12-02 Weblitze

Publications (2)

Publication Number Publication Date
EP1573100A1 EP1573100A1 (de) 2005-09-14
EP1573100B1 true EP1573100B1 (de) 2009-09-30

Family

ID=32519205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03782273A Expired - Lifetime EP1573100B1 (de) 2002-12-19 2003-12-02 Weblitze

Country Status (8)

Country Link
US (1) US7281548B2 (cs)
EP (1) EP1573100B1 (cs)
JP (1) JP2006510814A (cs)
CN (1) CN1729327A (cs)
AU (1) AU2003289932A1 (cs)
CZ (1) CZ2005395A3 (cs)
DE (2) DE10260024B4 (cs)
WO (1) WO2004057076A1 (cs)

Families Citing this family (8)

* 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
DE102004037717B3 (de) * 2004-08-04 2005-12-15 Groz-Beckert Kg Schaftstab für einen Webschaft
EP1975293B1 (de) * 2007-03-26 2012-01-25 Groz-Beckert KG Litzentragschiene aus gebogenem Blech
EP2166138A1 (de) * 2008-09-23 2010-03-24 Groz-Beckert KG Jacquardlitze mit geprägtem Fadenaugenbereich
CZ305126B6 (cs) * 2008-11-03 2015-05-13 Technická univerzita v Liberci Nitěnka pro tkací stroj
EP2730687B1 (de) * 2012-11-08 2015-09-16 Groz-Beckert KG Litze für eine Webmaschine, insbesondere eine Rundwebmaschine
US9328435B2 (en) * 2013-11-08 2016-05-03 Deertex, Inc. Functional weaving vamp fabric
TWM493278U (zh) * 2014-10-21 2015-01-11 Deertex Inc 具有透氣耐磨梭織鞋面之鞋類組件

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE387926A (cs) *
US2674275A (en) * 1949-05-06 1954-04-06 Froehlich A G E Heddle frame for looms
CH571085A5 (cs) * 1974-04-09 1975-12-31 Staeubli Ag
CH638572A5 (de) * 1979-07-30 1983-09-30 Grob & Co Ag Webelitze.
US4342399A (en) * 1981-02-17 1982-08-03 The Seven-Up Company Composite bottle
NL8200107A (nl) 1982-01-13 1983-08-01 Louet Beheer Bv Hevel voor een handwerk-weefgetouw.
DE19548176C1 (de) * 1995-12-22 1996-08-14 Schmeing Gmbh & Co Weblitze
BE1010007A3 (nl) * 1996-01-19 1997-11-04 Picanol Nv Weefkader voor weefmachines.
DE10035886A1 (de) * 2000-07-24 2002-02-14 Schmeing Gmbh & Co Weblitze
DE10206130B4 (de) * 2002-02-14 2016-09-01 Groz-Beckert Kg Webschaft mit mindestens einer Weblitze

Also Published As

Publication number Publication date
CZ2005395A3 (cs) 2005-10-12
DE10260024B4 (de) 2007-03-29
CN1729327A (zh) 2006-02-01
DE50311980D1 (de) 2009-11-12
WO2004057076A1 (de) 2004-07-08
US7281548B2 (en) 2007-10-16
AU2003289932A1 (en) 2004-07-14
EP1573100A1 (de) 2005-09-14
DE10260024A1 (de) 2004-07-15
US20060011252A1 (en) 2006-01-19
JP2006510814A (ja) 2006-03-30

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