EP1573100B1 - Heald - Google Patents
Heald Download PDFInfo
- 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
Links
- 238000009941 weaving Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 14
- 230000001133 acceleration Effects 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Classifications
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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
- D03C9/06—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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Description
Die Erfindung betrifft eine Litze, wie sie insbesondere als Weblitze in Webmaschinen Anwendung finden kann.The invention relates to a stranded wire, as it can be found in particular as healds in looms application.
Aus der
Mit dieser Maßnahme lassen sich die Endösen spielfrei an dem Webschaft festlegen. Jedoch ist dazu ein erheblicher Aufwand zu treiben. Insbesondere muss der Webschaft für diese Maßnahme eingerichtet sein und es müssen Maßnahmen getroffen werden, um das Betätigungsfluid sicher dicht einzuschließen.With this measure, the end eyelets can be set free of play on the heald. However, this is a considerable effort to drive. In particular, the heald must be set up for this measure and measures must be taken to securely close the actuating fluid.
Die spielfreie Festlegung der Litzen an dem Webschaft eröffnet die Möglichkeit, auch bei hoher Arbeitsgeschwindigkeit und somit großen Beschleunigungen des Webschafts eine sichere und kontrollierte Arbeitsweise zu erreichen. Der dazu zu betreibende Aufwand, entsprechend
Aus der
Die Durchbiegung der Litzentragschienen ist in erster Linie von den Leistungen der Webmaschinen abhängig und steigt bei Erhöhung derselben an. Es ist somit äußerst schwierig, die Durchbiegung, die das Spiel einer Endöse der Weblitze nach
Aus der
Des weiteren ist aus der
Die bekannten Litzen mit gesonderten Federelementen erfordern einen erheblichen Fertigungs- und Herstellungsaufwand. Zudem ist ein nicht unerheblicher Montageaufwand notwendig.The known strands with separate spring elements require considerable manufacturing and manufacturing costs. In addition, a considerable installation effort is necessary.
Aus der
Davon ausgehend ist es Aufgabe der Erfindung, eine einfache Maßnahme anzugeben, mit der sich die von dem Webschaft herrührende obere Grenze für die Arbeitsgeschwindigkeit einer Webmaschine weiter hinausschieben lässt.On this basis, it is an object of the invention to provide a simple measure with which it is possible to further postpone the upper limit for the working speed of a weaving machine resulting from the heddle.
Diese Aufgabe wird mit einer Litze nach Anspruch 1 gelöst. Der besondere Vorteil dieser erfindungsgemäßen Lösung liegt darin, dass sie ohne Veränderung der Webmaschine, insbesondere ohne Veränderung des Webschafts auskommt. Das an der Endöse vorgesehene oder einstückig angeschlossene Federmittel ermöglicht die spielfreie Lagerung der Litze bezüglich der Bewegungsrichtung des Webschafts, die mit der Längsrichtung der Litze übereinstimmt. Ein Klappern, Schlagen und somit Einarbeiten des Litzenkopfs in die Litzentragschiene wird dadurch reduziert oder unterdrückt. Außerdem bewirkt das Federmittel einen Toleranzausgleich, so dass die Endöse zwischen zwei einander gegenüber liegenden Flächen gespannt gehalten werden kann, wobei kleinere Maßabweichungen des Litzenkopfs oder Abstandsvariationen zwischen den beiden Druckflächen durch das Federmittel ausgeglichen werden.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 Endöse 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. In addition, the spring means causes a tolerance compensation, so that the Endöse 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.
Außerdem schafft das an der Endöse vorgesehene Federmittel die Voraussetzung, um Endösen und somit Litzen an der Litzentragschiene festspannen zu können. Beispielsweise kann an der Litzentragschiene ein Klemmmittel in Form einer beweglich gelagerten Druckschiene vorgesehen sein, das die Endösen am Platz festklemmt. Die an den Endösen vorgesehenen Federmittel ermöglichen dabei einen Toleranzausgleich, so dass alle Endösen relativ gleichmäßig festgespannt werden. Dies schafft die Voraussetzungen für eine mechanische Klemmeinrichtung, bei der ein einzelnes Klemmglied, bzw. eine einzelne Klemmschiene alle Endösen festklemmt.In addition, the provided on the Endöse spring means creates the prerequisite to be able to tighten end loops and thus strands on the heald support rail. For example, 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.
Das Federmittel bewirkt außerdem eine gewisse Pufferung beim abrupten Beschleunigen oder Abbremsen. Es ist bzgl. der Längsrichtung jeder Litze nachgiebig ausgebildet. Dabei sind unterschiedliche Ausführungsformen möglich. Bei bevorzugten Ausführungsformen ist das Federmittel durch einen ebenen Abschnitt des Litzenkopfs ausgebildet, der mit ein oder mehreren Aussparungen zur Vergrößerung der axialen Nachgiebigkeit versehen ist. Der Vorzug dieser Ausführungsform liegt darin, dass die Teilung der Litzen sehr eng sein kann, d.h. das Federmittel beansprucht keinen seitlichen Bauraum. Alternativ kann es jedoch auch durch eine Federzunge gebildet sein, die beispielsweise seitlich gekrümmt ist. Der Vorzug dieser Ausführungsform kann in einer erhöhten Nachgiebigkeit des Federmittels liegen.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.
Die Erfindung kann sowohl an lediglich einer Endöse einer Litze als auch an beiden, an den Enden der Litze vorgesehenen Endösen verwirklicht werden. Bei einer insbesondere für Hochgeschwindigkeitsmaschinen vorgesehenen Ausführungsform ist die Litze lediglich an einem Ende mit einer erfindungsgemäßen Endöse versehen, während das andere Ende ohne Endöse ist. In diesem Fall kann das freie Litzenende in einer Führung axial verschieblich gelagert werden. Auf diese Weise werden Relativbewegungen zwischen einander gegenüber liegenden Querträgern eines Webschafts nicht auf die Litze übertragen. Solche Relativbewegungen können in Folge dynamischer Lasten auftreten, wenn hohe Beschleunigungen wirken.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. In an embodiment intended in particular for high-speed machines, the strand is provided at one end only with an end eye according to the invention, while the other end is without end eye. In this case, 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.
Bei einer bevorzugten Ausführung sind die Litzen knicksteif ausgebildet. Sie können deshalb nicht nur Zug- sondern auch Druckkräfte übertragen. Knicksteifigkeit wird beispielsweise durch eine in Längsrichtung der Weblitze verlaufende Biegekante oder eine Wölbung der Litze erreicht.In a preferred embodiment, 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.
Bei einer weiteren bevorzugten Ausführung sind die Litzen in den beiden Abschnitten, die jeweils zwischen der Endöse und dem Öhr liegen, mit unterschiedlichen Querschnitten ausgebildet. Dabei werden bevorzugterweise zwei unterschiedliche Querschnitte mit unterschiedlichen Querschittsflächen verwendet, wobei ein Abschnitt von einer Endöse zu dem Öhr in der Regel einen konstant Querschnitt aufweist. Die Querschnitte können sich zum Beispiel durch die Querschnittsform unterscheiden. Zusätzlich oder alternativ können sie sich hinsichtlich des Flächeninhalts der Querschnittsfläche unterscheiden. Z.B. kann die Litze aus einem Flachmaterial konstanter Dicke bestehen, wobei die Litzenabschnitte, von der Flachseite her gesehen, unterschiedliche Breiten aufweisen.In a further preferred embodiment, the strands are formed in the two sections, which are each between the end eyelet and the eye, with different cross sections. In this case, preferably two different cross-sections are used with different cross-sectional areas, wherein a portion of a Endöse 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. For example, the strand can consist of a flat material of constant thickness, wherein the strand sections, seen from the flat side, have different widths.
Dies bietet die Möglichkeit, die Weblitze in dem Bereich, in dem sie stark beansprucht wird, mit einem dicken Querschnitt und in dem Bereich der geringeren Beanspruchung mit einen dünnen Querschnitt zu versehen. Dadurch wird das Gewicht der Weblitze reduziert und somit die Federkonstante des Federmittels der Endöse kleiner, was dann eine einfacheren Form des Federmittels bedeuten kann.This offers the possibility of providing the heald with a thick cross-section in the area in which it is subjected to heavy loads and with a thin cross-section in the area of lower stress. As a result, the weight of the heald is reduced and thus the spring constant of the spring means of the end eyelet smaller, which can then mean a simpler form of the spring means.
Die mit dem Federmittel versehenen Endösen gestatten, wie erwähnt, ein Festklemmen durch eine an dem Webschaft vorgesehene Klemmeinrichtung. Die Klemmeinrichtung weist vorzugsweise ein mit den Federmitteln, bzw. den Endösen, zusammenwirkendes steifes Klemmstück auf, das mechanisch, beispielsweise über eine Keilklemmeinrichtung oder über ein fluidbeaufschlagtes Mittel betätigt werden kann. Die steife Ausbildung des Klemmstücks hat den Vorzug, dass punktuell relativ große Kräfte aufgenommen werden können, d.h. die Endösen können mit großen Kräften festgeklemmt werden.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.
Weitere Einzelheiten vorteilhafter Ausführungsformen der Erfindung ergeben sich aus der Zeichnung, der Beschreibung oder Unteransprüchen.Further details of advantageous embodiments of the invention will become apparent from the drawings, the description or subclaims.
In der Zeichnung sind Ausführungsformen der Erfindung veranschaulicht. Es zeigen:
- Figur 1
- einen schematisch dargestellten Webschaft, mit Tragstäben, zugehörigen Litzentragschienen sowie Weblitzen
Figur 2- Litzentragschienen mit Weblitze in quer geschnittener, ausschnittsweiser Darstellung,
Figur 3- die Litzentragschiene und Weblitze nach
Figur 1 in quer geschnittener, ausschnittsweiser Darstellung in einem anderen Maßstab, Figur 4- eine abgewandelte Ausführungsform einer Litzentragschiene und einer Weblitze in quer geschnittener, ausschnittsweiser Darstellung,
Figur 5- eine weitere Ausführungsform einer Litzentragschiene und einer Weblitze in quer geschnittener, ausschnittsweiser Darstellung,
- Figur 6 und 7
- Litzen, geschnitten entlang einer Linie A-A in
in unterschiedlichen Ausführungsformen,Figur 4 Figur 8- eine weitere Ausführungsform einer Litzentragschiene und einer Weblitze in einer ausschnittsweisen Vorderansicht,
Figur 9- eine abgewandelte Ausführungsform einer Litzentragschiene mit Weblitze in ausschnittsweiser, quer geschnittener Darstellung,
Figur 10- eine Litzentragschiene mit mechanischer Verstelleinrichtung in ausschnittsweiser, perspektivischer Darstellung,
- Figur 11
- die
Litzentragschiene nach Figur 10 in einer ausschnittsweisen Explosionsdarstellung, Figur 12- eine komplette Weblitze nach
Figur 4 in schematischer Darstellung und - Figur 13
- eine abgewandelte Ausführungsform einer Weblitze und einer Litzentragschiene in quer geschnittener, ausschnittsweiser Darstellung.
- FIG. 1
- a weaving shank, shown schematically, with support rods, associated Litzentragschienen and healds
- FIG. 2
- Hitzentragschienen with hedge in cross-section, cut out,
- FIG. 3
- the heald track and heald after
FIG. 1 in a cross-sectional, fragmentary representation on a different scale, - FIG. 4
- a modified embodiment of a Litzentragschiene and a heald in cross-section, fragmentary representation,
- FIG. 5
- a further embodiment of a Litzentragschiene and a heald in cross-sectional, sectional illustration,
- FIGS. 6 and 7
- Strands cut along a line AA in
FIG. 4 in different embodiments, - FIG. 8
- a further embodiment of a Litzentragschiene and a heald in a fragmentary front view,
- FIG. 9
- a modified embodiment of a heddle support rail with heddle in a sectional, cross-sectional representation,
- FIG. 10
- a heddle support rail with mechanical adjustment in a fragmentary, perspective view,
- FIG. 11
- the heald track after
FIG. 10 in a fragmentary exploded view, - FIG. 12
- a complete heald after
FIG. 4 in a schematic representation and - FIG. 13
- a modified embodiment of a heald and a heddle support rail in cross-sectional, fragmentary representation.
In
Die Litze 2 besteht aus einem Flachmaterial, das sich zwischen den Litzentragschienen 3, 4 in Form eines flachen Streifens (Litzenkörpers) erstreckt. Etwa mittig ist ein Öhr 5 vorgesehen. An wenigstens einem Ende, beispielsweise an dem oberen Ende 6, weist die Litze 2 eine Endöse 7 auf, die der Befestigung der Litze 2 an der Litzentragschiene 3 dient und von der sich der Litzenkörper 10 weg erstreckt. Die Endöse 7 ist in
An der Endöse 7 ist an der von der Ausnehmung 8 abliegenden Seite ein Federmittel 14 ausgebildet, mit dem sich die Endöse 7 an einer der Leiste 9 gegenüber liegenden Druckfläche 15 abstützt. Die Druckfläche 15 ist beispielsweise an der Litzentragschiene 3 ausgebildet.At the
Das Federmittel 14 wird beispielsweise durch einen Abschnitt der Endöse 7 bzw. des Litzenkopfs gebildet, der mit einer Öffnung 16 versehen ist. Dieser Abschnitt erstreckt sich im Anschluss an die Ausnehmung 8 weg von dem Öhr 5 und besteht vorzugsweise aus dem gleichen Material wie die übrige Endöse 7. Die Öffnung 16, die beispielsweise in Form eines runden Lochs ausgebildet sein kann, ist von einem geschlossenen Rand 17 umgeben, der an seiner Außenseite bogenförmig gekrümmt ist und an einer Stelle 18 die Druckfläche 15 berührt. Der Rand 17 weist eine gewisse Nachgiebigkeit auf. Wenn der Abstand der Stelle 18 der Litze 2 von der Stelle 19 der Litze 2, bei der der Rand der Ausnehmung 8 die obere Kante der Leiste 9 berührt, geringfügig größer ist als der Abstand zwischen der Druckfläche 15 und der Berührungsstelle, an der sich die Leiste 9 und die Litze 2 berühren, kann das Federmittel 14, das durch den mit der Öffnung 16 versehenen Abschnitt der Endöse 7 gebildet ist, dieses. Übermaß ausgleichen. Die Endöse 7 sitzt dann unter Spannung auf der Leiste 9 bzw: auf der Litzentragschiene 3. Ein Hin- und Herschlagen der Endöse 7 in Längsrichtung Y ist dadurch ausgeschlossen. Damit sitzt die Endöse7 sicher auf der Leiste 9 und zwar auch dann, wenn die Ausnehmung 8 in dem zwischen der Leiste 9 und dem Fortsatz 12 begrenzten Zwischenraum nur durch einen kurzen Schenkel 20 begrenzt ist. Dies gestattet wiederum die Gestaltung sehr kurzer, kompakter Endösen 7 und entsprechend kleiner Litzentragschienen 3, was zu einer Verminderung bewegter Massen führen kann.The spring means 14 is formed for example by a portion of the
Die untere Litzentragschiene 4 (
In Betrieb vollführt der Webschaft 1 eine hin- und hergehende Bewegung in Richtung der Längsrichtung Y der Litze 2. Damit wird jeder durch das Öhr 5 laufende Faden entsprechend nach oben oder nach unten aus einer Kettfadenebene heraus bewegt. Die Bewegung findet nahezu sprunghaft mit hohen Beschleunigungs- und Bremskräften statt. Die erforderlichen Kräfte werden dabei an der Litzentragschiene 3, an der die Litze 2 spielfrei gehalten ist, in die Litze 2 eingeleitet. Bei der Aufwärtsbewegung stützt sich die Endöse 7 an der Leiste 9 ab. Eine Federwirkung ist hierbei kaum zu verzeichnen. Hinsichtlich der Abwärtsbewegung stützt sich die Endöse 7 über die Stelle 18 an der Druckfläche 15. Das Federmittel 14 gibt dabei nicht oder nur unwesentlich nach. Es ist so steif ausgelegt, dass es die nötige Beschleunigungskraft auf die Endöse 7 übertragen kann, ohne dass die Stelle 19 der Litze von der Leiste 9 abhebt. Die Steifigkeit des Federmittels 14 kann beispielsweise durch die Größe der Öffnung 16 eingestellt werden. Die Breite des verbleibenden Rands 17 bestimmt dann die Nachgiebigkeit.In operation, the heald 1 makes a reciprocating movement in the direction of the longitudinal direction Y of the
In
Eine weiter abgewandelte Ausführungsform der Litze 2 und der Litzentragschiene 3 veranschaulicht
Eine weiter abgewandelte Ausführungsform des Federmittels 14 ist aus
Alle vorstehend beschriebenen Litzen 2 können bedarfs- und vorzugsweise bezügl. ihrer Knickfestigkeit bei Druckbelastung in Längsrichtung Y ausgesteift sein. Dazu können sie einen in
Eine weitere Ausführungsform einer erfindungsgemäßen Weblitze 2 ist in
Die Querschnitte der einzelnen Abschnitte A, B können quadratisch rechteckig, oval, kreisrund, elliptisch, nierenförmig, T-förmig, U-förmig oder ähnlich sein.The cross sections of the individual sections A, B may be square, rectangular, oval, circular, elliptical, kidney-shaped, T-shaped, U-shaped or similar.
Bei den vorstehend beschriebenen Ausführungsformen des Webschafts 1 ist zunächst davon ausgegangen worden, dass die Druckfläche 15 in Bezug auf die Leiste 9 der Litzentragschiene 3 eine feste, unverstellbare Position aufweist. Die vorgestellten, mit einem Federmittel 14 versehenen Litzen 2 eignen sich jedoch insbesondere für eine Litzentragschiene 3, wie sie aus
Eine zwischen den Schienen 33, 38 angeordnete wellenförmig gebogene Blattfeder 45 kann dazu vorgesehen sein, die Schienen 33, 38 voneinander weg zu spannen. Des Weiteren kann ein Gewindebolzen 46 dazu dienen, die Schienen 33, 38 längs gegeneinander zu verstellen. Damit bewirkt ein Drehen des Gewindebolzens 46 eine Verstellung der Schiene 33 und damit zugleich eine Entfernung oder Annäherung der Druckfläche 15 an die Leiste 9 der Litzentragschiene 3, 4.A wavy
In
Es ist möglich, an Stelle der Litzentragschiene 3, die beispielsweise aus Stahl besteht, eine Leiste, wie beispielsweise gemäß
Eine verbesserte Litze 2 weist an ihrer Endöse 7 ein Federmittel 14 auf, das die Endöse 7 in zumindest einer Richtung federnd an einer Litzentragschiene 3 abstützt. Das Federmittel 14 dient zur Vermeidung von Spiel zwischen der Litze 2 und dem Webschaft 1. Diese Maßnahme gestattet eine Erhöhung der Arbeitsgeschwindigkeit von Webmaschinen.An improved stranded
- 11
- Webschaftheald
- 22
- Litzebraid
- 3, 43, 4
- Litzentragschieneshaft stave
- 55
- Öhreyelet
- 66
- EndeThe End
- 77
- Endöseend loop
- 88th
- Ausnehmungrecess
- 99
- Leistestrip
- 1010
- Litzenkörperheald
- 1111
- Stegweb
- 1212
- Fortsatzextension
- 1414
- Federmittelspring means
- 1515
- Druckflächeprint area
- 1616
- Öffnungopening
- 1717
- Randedge
- 18, 19, 19'18, 19, 19 '
- StelleJob
- 2020
- Schenkelleg
- 2121
- Aufnahmeschienereceiving rail
- 2222
- Führungsöffnungguide opening
- 2323
- Druckfedercompression spring
- 24, 2524, 25
- Ausschnittecutouts
- 2626
- Einschnittincision
- 27, 2827, 28
- Schenkelleg
- 2929
- Druckleisteprint bar
- 3131
- Abschnittsection
- 3232
- Biegekantebending edge
- 3333
- Schienerail
- 3434
- Pfeilarrow
- 3535
- Klemmeinrichtungclamper
- 36, 3736, 37
- Schenkelleg
- 3838
- Schienerail
- 41, 4241, 42
- Schenkelleg
- 4343
- Langlöcherslots
- 4444
- Stiftpen
- 4545
- Blattfederleaf spring
- 4646
- Gewindebolzenthreaded bolt
- 51, 51'51, 51 '
- Schaftstabstave
- YY
- Längsrichtunglongitudinal direction
Claims (17)
- Heald (2), in particular for weaving machines,
with an elongated heald body, which has an end eyelet (7) at one end for fastening the heald (2) to a heald slide bar (3, 4), and
with a spring means (14) provided on the end eyelet (7),
characterised in that the spring means (14) is formed by at least one resilient section extending away from the end eyelet (7) for support on a pressure surface (15). - Heald according to claim 1, characterised in that the spring means (14) is connected in one piece to the end eyelet (7).
- Heald according to claim 1, characterised in that the spring means (14) is arranged on the end eyelet (7) on its side remote from the heald body (10).
- Heald according to claim 1, characterised in that the spring means (14) is configured as tensioning means to mount the heald (2) on the heald slide bar (3, 4) under bias.
- Heald according to claim 1, characterised in that the spring means (14) is flexible in the longitudinal direction (Y) of the heald.
- Heald according to claim 1, characterised in that the spring means (14) is configured as a pressure spring (23).
- Heald according to claim 1, characterised in that the spring means (14) is configured as a bending spring.
- Heald according to claim 1, characterised in that the heald (2) is formed from a plane flat material and that the end eyelet (7) is plane.
- Heald according to claim 1, characterised in that the heald (2) is configured from a plane flat material and that the spring means (14) is plane.
- Heald according to claim 1, characterised in that the heald (2) is configured from a plane flat material and that the spring means (14) is formed by a curved spring tongue.
- Heald according to claim 1, characterised in that the heald (2) is configured from a flat material and adjoining the end eyelet (7) has an elongated section provided with a bending edge (32) or a reinforcing curvature.
- Heald according to claim 1, characterised in that adjoining the end eyelet (7) the heald (2) has an elongated section (C), which is divided into a plurality of sections (A, B), and that these sections (A, B) have different cross-sectional surfaces.
- Heald according to claim 11, characterised in that the cross-sectional surfaces of the sections (A, B) have a ratio of their surface contents of 1 to 2.
- Heald according to claim 11, characterised in that the cross-sectional surfaces of the sections (A, B) have different profiles from one another.
- Heald slide bar with a heald according to claim 1, characterised in that the abutment surface (15) for the spring means (14) is provided on the heald slide bar (3, 4).
- Heald slide bar with a heald according to claim 15, characterised in that the abutment surface (15) is locally fixed in relation to the heald slide bar (3, 4).
- Heald slide bar with a heald according to claim 15, characterised in that the abutment surface (15) is adjustably disposed in relation to the heald slide bar (3, 4).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10260024A DE10260024B4 (en) | 2002-12-19 | 2002-12-19 | heald |
DE10260024 | 2002-12-19 | ||
PCT/EP2003/013555 WO2004057076A1 (en) | 2002-12-19 | 2003-12-02 | Heald |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1573100A1 EP1573100A1 (en) | 2005-09-14 |
EP1573100B1 true EP1573100B1 (en) | 2009-09-30 |
Family
ID=32519205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03782273A Expired - Lifetime EP1573100B1 (en) | 2002-12-19 | 2003-12-02 | Heald |
Country Status (8)
Country | Link |
---|---|
US (1) | US7281548B2 (en) |
EP (1) | EP1573100B1 (en) |
JP (1) | JP2006510814A (en) |
CN (1) | CN1729327A (en) |
AU (1) | AU2003289932A1 (en) |
CZ (1) | CZ2005395A3 (en) |
DE (2) | DE10260024B4 (en) |
WO (1) | WO2004057076A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10329219B4 (en) | 2003-06-28 | 2007-04-05 | Groz-Beckert Kg | Shaft rod with movable strand damping element |
DE102004037717B3 (en) * | 2004-08-04 | 2005-12-15 | Groz-Beckert Kg | Heald frame rod, for a loom heald frame, has a heald slide bar held at a profile element with a rubber cord as a spring vibration damper |
EP1975293B1 (en) * | 2007-03-26 | 2012-01-25 | Groz-Beckert KG | Heald bar made of sheet metal |
EP2166138A1 (en) * | 2008-09-23 | 2010-03-24 | Groz-Beckert KG | Jacquard heald with embossed heald eye area |
CZ305126B6 (en) * | 2008-11-03 | 2015-05-13 | Technická univerzita v Liberci | Loom heald |
EP2730687B1 (en) * | 2012-11-08 | 2015-09-16 | Groz-Beckert KG | Heald for a weaving machine, in particular a circular loom |
US9328435B2 (en) * | 2013-11-08 | 2016-05-03 | Deertex, Inc. | Functional weaving vamp fabric |
TWM493278U (en) * | 2014-10-21 | 2015-01-11 | Deertex Inc | Footwear assembly with breathable and wear-resistant woven vamp |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE387926A (en) * | ||||
US2674275A (en) * | 1949-05-06 | 1954-04-06 | Froehlich A G E | Heddle frame for looms |
CH571085A5 (en) * | 1974-04-09 | 1975-12-31 | Staeubli Ag | |
CH638572A5 (en) * | 1979-07-30 | 1983-09-30 | Grob & Co Ag | FABRIC. |
US4342399A (en) * | 1981-02-17 | 1982-08-03 | The Seven-Up Company | Composite bottle |
NL8200107A (en) | 1982-01-13 | 1983-08-01 | Louet Beheer Bv | Plastic heald element for manual weaving loom - has eye for warp thread, opening to fit on heald shaft above it, and downward projection |
DE19548176C1 (en) * | 1995-12-22 | 1996-08-14 | Schmeing Gmbh & Co | Heddle for loom shank has end eyes |
BE1010007A3 (en) * | 1996-01-19 | 1997-11-04 | Picanol Nv | Weefkader for looms. |
DE10035886A1 (en) * | 2000-07-24 | 2002-02-14 | Schmeing Gmbh & Co | Heald for weaving a leno selvage has a suspension hook linked to the heald shaft by a stretch elastic connector, for easy fitting over the heald carrier rail |
DE10206130B4 (en) * | 2002-02-14 | 2016-09-01 | Groz-Beckert Kg | Weave with at least one heald |
-
2002
- 2002-12-19 DE DE10260024A patent/DE10260024B4/en not_active Expired - Fee Related
-
2003
- 2003-12-02 EP EP03782273A patent/EP1573100B1/en not_active Expired - Lifetime
- 2003-12-02 DE DE50311980T patent/DE50311980D1/en not_active Expired - Lifetime
- 2003-12-02 US US10/539,292 patent/US7281548B2/en not_active Expired - Fee Related
- 2003-12-02 CN CNA2003801068529A patent/CN1729327A/en active Pending
- 2003-12-02 CZ CZ2005395A patent/CZ2005395A3/en unknown
- 2003-12-02 WO PCT/EP2003/013555 patent/WO2004057076A1/en active Application Filing
- 2003-12-02 AU AU2003289932A patent/AU2003289932A1/en not_active Abandoned
- 2003-12-02 JP JP2004561203A patent/JP2006510814A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
AU2003289932A1 (en) | 2004-07-14 |
WO2004057076A1 (en) | 2004-07-08 |
CN1729327A (en) | 2006-02-01 |
DE50311980D1 (en) | 2009-11-12 |
DE10260024B4 (en) | 2007-03-29 |
US20060011252A1 (en) | 2006-01-19 |
EP1573100A1 (en) | 2005-09-14 |
CZ2005395A3 (en) | 2005-10-12 |
JP2006510814A (en) | 2006-03-30 |
US7281548B2 (en) | 2007-10-16 |
DE10260024A1 (en) | 2004-07-15 |
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