EP0408870A1 - Gripper for weaving looms - Google Patents

Gripper for weaving looms Download PDF

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Publication number
EP0408870A1
EP0408870A1 EP90109969A EP90109969A EP0408870A1 EP 0408870 A1 EP0408870 A1 EP 0408870A1 EP 90109969 A EP90109969 A EP 90109969A EP 90109969 A EP90109969 A EP 90109969A EP 0408870 A1 EP0408870 A1 EP 0408870A1
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EP
European Patent Office
Prior art keywords
spring
gripper head
head according
gripper
cushion
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.)
Granted
Application number
EP90109969A
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German (de)
French (fr)
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EP0408870B1 (en
Inventor
Horst Dipl.-Ing. Häussler
Hubert Dipl.-Ing. Ortmann
Harald Störr
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Lindauer Dornier GmbH
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Lindauer Dornier GmbH
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Publication date
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0408870A1 publication Critical patent/EP0408870A1/en
Application granted granted Critical
Publication of EP0408870B1 publication Critical patent/EP0408870B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44641—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member
    • Y10T24/44932—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member having specific surface material or irregularity on or along engaging face

Definitions

  • the invention relates to a rapier head for weaving machines consisting of a body with a clamping device for the thread to be clamped, a stationary clamping cushion being arranged near the front gripper tip of the gripper head and a movable clamping cushion standing opposite one another under spring tension.
  • Such a gripper head with a clamping device for the thread to be clamped is known per se, but the movable clamping cushion is arranged at the free front end of a pivoted lever pivotally mounted in the hook body.
  • This swivel lever is in a manner known per se in connection with a control lever which ensures the opening and closing movements of the movable clamping cushion.
  • the control lever is arranged on the machine side and actuates the swivel lever, as a result of which a thread can be gripped between the movable and the stationary clamping cushion at the hook tip.
  • the gripper heads represent the last link in the entire drive chain, the gripper heads are, via their masses, incipient for the dimensioning of all other components of this chain. An easy one
  • the gripper head therefore also enables lighter-dimensioned drive components such as the rack.
  • a light gripper head in conjunction with a light rack in turn enables a lighter drive wheel and so on.
  • the object of the present invention is therefore to make the mass of such a gripper head lower.
  • the invention is characterized in that the movable clamping cushion is arranged in connection with a clamp at the front free end of a spring, which is supported with its other end on the body.
  • the essential advantage is achieved that the otherwise known clamping lever, which was present per se and which was arranged as a pivotable separate part on the gripper head, can now be dispensed with.
  • the otherwise used clamping lever is therefore completely eliminated according to the invention and is replaced by a spring itself which carries the movable clamping cushion at its free front end.
  • the spring is designed as a straight or curved spiral spring which is clamped on one side and carries the movable clamping cushion at its front, free end.
  • a leg spring can also be used, which is also supported at one end on the body of the gripper and which carries the movable gripper cushion at its other, pivotable end.
  • a torsion spring or a helical compression spring can be used, which is then installed in the body in the vertical axis to the axis of the spiral spring shown later.
  • spiral spring it is stated that it can be both a simple spiral spring and a multi-layered spring assembly. Further advantageous refinements of the gripper head result from the subclaims.
  • a body 1 of known shape and of a spring bearing 2, which consists of a bolt which bears a slot in the front, into which the spring 3 is clamped or otherwise glued.
  • This bolt is firmly anchored in the body, but can be rotated for adjustment purposes in order to adjust the spring position of the spring 3.
  • the spring 3 carries a clamp 5 at its front end.
  • the skid 4 is connected to this clamp 5, the skid 4 being made of a highly wear-resistant material which is soldered onto the clamp 5, for example.
  • the clamp 5 here forms an upper shoulder 11 and a lower shoulder 10, which define a receiving opening into which the front free end of the spring 3 engages and in this area the clamp 5 is fastened to the spring 3 with a screw 9.
  • the clamp 5 carries at its front end a clamping pad 12 which forms the clamping surface of the movable clamp.
  • the fixed part of the clamp is formed by an anvil 6, which is known per se in its shape, and carries a clamping cushion 13 at its front, lower end.
  • the clamping pad 13 is constructed in two layers and consists of an elastic body and a highly wear-resistant surface e.g. B. is achieved by sticking a highly wear-resistant plate on this pillow.
  • a cover lever 7 is arranged in the bringer gripper, which in a manner known per se closes the eyelet 14 which is open at the front in certain operating states of the gripper.
  • FIG. 2 represents a right gripper (slave gripper).
  • an adjusting arrangement 15 is present on the spring bearing 2, which consists of an adjusting screw and a lock nut which is supported on a fixed surface 16 on the body 1.
  • the spring 3 is in turn connected to the clamp 5 and consists of a skid 4 and carries the movable plate 12, which is arranged behind a thread deflector 17.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Springs (AREA)

Abstract

Beschrieben wird ein Greiferkopf für Webmaschinen bestehend aus einem Korpus (1) mit einer Klemmeinrichtung für den zu klemmenden Faden, wobei in der Nähe der vorderen Greiferspitze ein ortsfestes Klemmkissen (13) und gegenüberliegend unter Federspannung stehend, ein bewegliches Klemmkissen (12) angeordnet sind.
Zur Verringerung der Masse eines derartigen Greiferkopfes ist es vorgesehen, daß das bewegliche Klemmkissen (12) in Verbindung mit einer Klemme (5) am vorderen freien Ende einer Feder (3) angeordnet ist, die sich mit ihrem anderen Ende am Korpus (1) abstützt. A gripper head for weaving machines is described, consisting of a body (1) with a clamping device for the thread to be clamped, with a stationary clamping cushion (13) and a spring-loaded clamping cushion (12) located opposite the front gripper tip.
To reduce the mass of such a gripper head, it is provided that the movable clamping cushion (12) is arranged in connection with a clamp (5) at the front free end of a spring (3) which is supported with its other end on the body (1) .

Description

Die Erfindung betrifft einen Greiferkopf für Webmaschinen bestehend aus einem Korpus mit einer Klemmeinrichtung für den zu klemmenden Faden, wobei in der Nähe der vorderen Greiferspitze des Greiferkopfes ein ortsfestes Klemmkissen und gegenüberliegend unter Federspannung stehend ein bewegliches Klemmkissen angeordnet ist.The invention relates to a rapier head for weaving machines consisting of a body with a clamping device for the thread to be clamped, a stationary clamping cushion being arranged near the front gripper tip of the gripper head and a movable clamping cushion standing opposite one another under spring tension.

Ein derartiger Greiferkopf mit einer Klemmeinrichtung für den zu klemmenden Faden ist an sich bekannt, wobei das bewegliche Klemmkissen jedoch am freien vorderen Ende eines schwenkbar im Greiferkorpus gelagerten Schwenkhebel angeordnet ist. Dieser Schwenkhebel steht in an sich bekannter Weise in Verbindung mit einem Steuerhebel, welcher die Öffnungs- und Schließbewegungen des beweglichen Klemmkissens gewährleistet. Der Steuerhebel ist machschinenseitig angeordnet und betätigt den Schwenkhebel, wodurch ein Faden zwischen dem beweglichen und dem ortsfesten Klemmkissen an der Greiferspitze klemmend ergriffen werden kann.Such a gripper head with a clamping device for the thread to be clamped is known per se, but the movable clamping cushion is arranged at the free front end of a pivoted lever pivotally mounted in the hook body. This swivel lever is in a manner known per se in connection with a control lever which ensures the opening and closing movements of the movable clamping cushion. The control lever is arranged on the machine side and actuates the swivel lever, as a result of which a thread can be gripped between the movable and the stationary clamping cushion at the hook tip.

Problem bei den bisherigen Greiferköpfen war jedoch die relativ hohe Masse. Diese Masse führte zu hohen Massenträgheitskräften beim Einsatz derartiger Greiferköpfe bei Webmaschinen, wodurch sich Nachteile in Bezug auf die Tourenzahl der Webmaschine und die Lebensdauer einstellen konnten.The problem with the previous gripper heads was the relatively high mass. This mass led to high inertia forces when using such rapier heads in weaving machines, which could result in disadvantages with regard to the number of revolutions of the weaving machine and the service life.

Da die Greiferköpfe das letzte Glied in der ganzen Antriebskette darstellen, sind die Greiferköpfe über ihre Massen iniziierend für die Dimensionierung aller anderen Bauteile dieser Kette. Ein leichter Greiferkopf ermöglicht demnach auch leichter dimensionierte Antriebsbauteile wie z.B. die Zahnstange. Ein leichter Greiferkopf in Verbindung mit einer leichten Zahnstange ermöglicht wiederum ein leichteres Antriebsrad und so weiter.Since the gripper heads represent the last link in the entire drive chain, the gripper heads are, via their masses, incipient for the dimensioning of all other components of this chain. An easy one The gripper head therefore also enables lighter-dimensioned drive components such as the rack. A light gripper head in conjunction with a light rack in turn enables a lighter drive wheel and so on.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zu Grunde die Masse eines derartigen Greiferkopfes geringer zu gestalten.The object of the present invention is therefore to make the mass of such a gripper head lower.

Zur Lösung der gestellten Aufgabe ist die Erfindung dadurch gekennzeichnet, daß das bewegliche Klemmkissen in Verbindung mit einer Klemme am vorderen freien Ende einer Feder angeordnet ist, die sich mit ihrem anderen Ende am Korpus abstützt.To achieve the object, the invention is characterized in that the movable clamping cushion is arranged in connection with a clamp at the front free end of a spring, which is supported with its other end on the body.

Mit der gegebenen technischen Lehre wird der wesentliche Vorteil erreicht, daß nun der an sich vorhanden gewesene sonst bekannte Klemmhebel , der als schwenkbares separates Teil an dem Greiferkopf angeordnet war, nun entfallen kann.With the given technical teaching, the essential advantage is achieved that the otherwise known clamping lever, which was present per se and which was arranged as a pivotable separate part on the gripper head, can now be dispensed with.

Der sonst verwendete Klemmhebel entfällt demnach erfindungsgemäß vollständig und wird durch eine Feder selbst ersetzt, die an ihrem freien vorderen Ende das bewegliche Klemmkissen trägt.The otherwise used clamping lever is therefore completely eliminated according to the invention and is replaced by a spring itself which carries the movable clamping cushion at its free front end.

Damit erfolgt eine wesentliche Masseneinsparung um ca. 50 g, was bei hohen Tourenzahlen zu einer wesentlichen Verschleißminderung und Verringerung der Bauteilbeanspruchung im gesamten Antriebsgetriebe führt. Ein derartiger Greifer kann demzufolge wesentlich einfacher hergestellt werden, und insbesondere auch billiger. Neben der verringerten Gesamtmasse bietet der Greiferkopf bzw. der Federgreifer auch weitere Vorteile derart, daß geringere Schließkräfte durch geringere Klemmassen entstehen, wodurch weniger Fadenabklemmer zu befürchten sind.This results in a substantial mass saving of approx. 50 g, which leads to a significant reduction in wear and a reduction in component stress in the entire drive transmission at high speeds. Such a gripper can therefore be manufactured much more easily, and in particular also cheaper. In addition to the reduced overall mass, the gripper head or the spring gripper also offers further advantages in such a way that lower closing forces result from lower clamping masses, as a result of which fewer thread clamps are to be feared.

Im weiteren ergeben sich noch die Vorteile, daß weniger Bauteile verwendet werden müssen und durch die Vermeidung von Lagerpunkten weniger Verschleiß entsteht.In addition, there are the advantages that fewer components have to be used and less wear arises by avoiding bearing points.

Nach einer bevorzugten Ausführungsform der vorliegenden Erfindung wird es bevorzugt, wenn die Feder als einseitig eingespannte gerade oder gebogene Biegefeder ausgebildet ist, die an ihrem vorderen, freien Ende das bewegliche Klemmkissen trägt.According to a preferred embodiment of the present invention, it is preferred if the spring is designed as a straight or curved spiral spring which is clamped on one side and carries the movable clamping cushion at its front, free end.

Die Verwendung einer Biegefeder soll jedoch nicht einschränkend verstanden werden, sondern es sind sämtliche bekannten Federanordnungen für die vorliegende Erfindung anwendbar.However, the use of a spiral spring is not to be understood as restrictive, but all known spring arrangements can be used for the present invention.

Demzufolge kann auch eine Schenkelfeder verwendet werden, die sich mit ihrem einen Ende ebenfalls an dem Korpus des Greifers abstützt und die an ihrem anderen, schwenkbaren Ende das bewegliche Greiferkissen trägt. Ebenso kann eine Torsionsfeder verwendet werden oder eine Schraubendruckfeder, die dann in senkrechter Achse zur Achse der später dargestellten Biegefeder in den Korpus eingebaut wird.Accordingly, a leg spring can also be used, which is also supported at one end on the body of the gripper and which carries the movable gripper cushion at its other, pivotable end. Likewise, a torsion spring or a helical compression spring can be used, which is then installed in the body in the vertical axis to the axis of the spiral spring shown later.

Bezüglich der Biegefeder wird ausgeführt, daß es sowohl eine einfache Biegefeder sein kann als auch ein mehrfach geschichtetes Federpaket. Weitere vorteilhafte Ausgestaltungen des Greiferkopfes ergeben sich aus den Unteransprüchen.With regard to the spiral spring, it is stated that it can be both a simple spiral spring and a multi-layered spring assembly. Further advantageous refinements of the gripper head result from the subclaims.

Die Erfindung wird nun anhand eines Ausführungsbeispieles näher beschrieben.

  • Figur 1 zeigt perspektivisch einen Federkopf in seiner Ausführung als Bringergreifer, während
  • Figur 2 perspektivisch einen Federkopf in seiner Ausführung als Nehmergreifer zeigt.
The invention will now be described in more detail using an exemplary embodiment.
  • Figure 1 shows in perspective a spring head in its design as a gripper, while
  • Figure 2 perspective a spring head in its design as Slave gripper shows.

Der Bringergreifer nach Figur 1 besteht aus einem Korpus 1 an sich bekannter Formgebung und aus einem Federlager 2, welches aus einem Bolzen besteht, der vorne einen Schlitz trägt, in den die Feder 3 eingeklemmt oder sonstwie eingeklebt ist.1 consists of a body 1 of known shape and of a spring bearing 2, which consists of a bolt which bears a slot in the front, into which the spring 3 is clamped or otherwise glued.

Dieser Bolzen ist fest im Korpus verankert, jedoch zu Einstellungszwecken verdrehbar, um die Federstellung der Feder 3 einzustellen.This bolt is firmly anchored in the body, but can be rotated for adjustment purposes in order to adjust the spring position of the spring 3.

Die Feder 3 trägt an ihrem vorderen Ende eine Klemme 5. Die Gleitkufe 4 ist mit dieser Klemme 5 verbunden, wobei die Gleitkufe 4 aus einem hochverschleißfesten Material besteht, welches beispielsweise auf die Klemme 5 aufgelötet ist.The spring 3 carries a clamp 5 at its front end. The skid 4 is connected to this clamp 5, the skid 4 being made of a highly wear-resistant material which is soldered onto the clamp 5, for example.

Die Klemme 5 bildet hierbei einen oberen Ansatz 11 und einen unteren Ansatz 10, die eine Aufnahmeöffnung definieren, in welche das vordere freie Ende der Feder 3 greift und in diesem Bereich ist die Klemme 5 mit einer Schraube 9 auf der Feder 3 befestigt.The clamp 5 here forms an upper shoulder 11 and a lower shoulder 10, which define a receiving opening into which the front free end of the spring 3 engages and in this area the clamp 5 is fastened to the spring 3 with a screw 9.

Die Klemme 5 trägt an ihrem vorderen Ende ein Klemmkissen 12, welches die Klemmoberfläche der beweglichen Klemme bildet.The clamp 5 carries at its front end a clamping pad 12 which forms the clamping surface of the movable clamp.

Der feststehende Teil der Klemme wird hierbei gebildet von einem Amboß 6, der in seiner Formgebung an sich bekannt ist, und an seinem vorderen, unteren Ende ein Klemmkissen 13 trägt.The fixed part of the clamp is formed by an anvil 6, which is known per se in its shape, and carries a clamping cushion 13 at its front, lower end.

Das Klemmkissen 13 ist zweischichtig aufgebaut und besteht aus einem elastischen Körper und aus einer hochverschleißfesten Oberfläche, die z. B. durch Aufkleben eines hochverschleißfesten Plättchens auf dieses Kissen erreicht wird.The clamping pad 13 is constructed in two layers and consists of an elastic body and a highly wear-resistant surface e.g. B. is achieved by sticking a highly wear-resistant plate on this pillow.

Wichtig bei dieser Ausführung ist nun, daß der an sich vorhanden gewesene Klemmhebel vollständig entfällt, daß also die bewegliche Klemmanordnung unmittelbar am freien, vorderen Ende der Feder 3 angeordnet ist.It is important in this embodiment that the existing clamping lever is completely eliminated, that is, the movable clamping arrangement is arranged directly on the free, front end of the spring 3.

Seitlich an der beweglichen Klemme 5 ist beim Bringergreifer ein Abdeckhebel 7 angeordnet, der in an sich bekannter Weise die nach vorn offene Öse 14 in bestimmten Betriebszuständen des Greifers verschließt.On the side of the movable clamp 5, a cover lever 7 is arranged in the bringer gripper, which in a manner known per se closes the eyelet 14 which is open at the front in certain operating states of the gripper.

Bezüglich der Figur 2, welche einen rechten Greifer (Nehmergreifer darstellt) gelten die gleichen Erläuterungen.The same explanations apply to FIG. 2, which represents a right gripper (slave gripper).

Man erkennt hier, daß am Federlager 2 eine Einstellanordnung 15 vorhanden ist, die aus einer Einstellschraube und aus einer Gegenmutter besteht, die sich an einer ortsfesten Fläche 16 am Korpus 1 abstützt.It can be seen here that an adjusting arrangement 15 is present on the spring bearing 2, which consists of an adjusting screw and a lock nut which is supported on a fixed surface 16 on the body 1.

Im übrigen ist dort wiederum die Feder 3 mit der Klemme 5 verbunden und besteht aus einer Gleitkufe 4 und trägt das bewegliche Plättchen 12, welches hinter einem Fadenabweiser 17 angeordnet ist.Otherwise, the spring 3 is in turn connected to the clamp 5 and consists of a skid 4 and carries the movable plate 12, which is arranged behind a thread deflector 17.

ZEICHNUNGS-LEGENDEDRAWING LEGEND

  • 1 Korpus1 body
  • 2 Federlager2 spring bearings
  • 3 Feder3 spring
  • 4 Gleitkufe4 skids
  • 5 KLemme5 terminal
  • 6 Amboß (festes Teil)6 anvil (fixed part)
  • 7 Abdeckhebel7 cover lever
  • 8 Führungsstück8 guide piece
  • 9 Schraube9 screw
  • 10 unterer Ansatz10 lower approach
  • 11 oberer Ansatz11 top approach
  • 12 Klemmkissen12 clamping pads
  • 13 Klemmkissen13 clamping pads
  • 14 Öse14 eyelet
  • 15 Einstellanordnung15 setting arrangement
  • 16 Fläche16 area
  • 17 Fadenabweiser17 thread deflector

Claims (9)

1. Greiferkopf für Webmaschinen bestehend aus einem Korpus mit einer Klemmeinrichtung für den zu klemmenden Faden, wobei in der Nähe der vorderen Greiferspitze ein ortsfestes Klemmkissen und gegenüberliegend unter Federspannung stehend ein bewegliches Klemmkissen angeordnet sind, dadurch gekennzeichnet, daß das bewegliche Klemmkissen (12) am vorderen freien Ende einer Feder (3) angeordnet ist, die sich mit ihrem anderen Ende am Korpus (1) abstützt.1. Gripper head for weaving machines consisting of a body with a clamping device for the thread to be clamped, with a stationary clamping cushion near the front hook tip and a movable clamping cushion arranged opposite to each other under spring tension, characterized in that the movable clamping cushion (12) on front free end of a spring (3) is arranged, which is supported with its other end on the body (1). 2. Greiferkopf nach Anspruch 1, dadurch gekenn­zeichnet, daß die Feder (3) für ein paralleles Schließen einer mit dem Klemmkissen (12) verbundenen Klemme (5) als einseitig eingespannte Biegefeder ausgebildet ist, die an ihrem vorderen freien Ende das bewegliche Klemmkissen (12) trägt.2. Gripper head according to claim 1, characterized in that the spring (3) for a parallel closing of a clamp (12) connected to the clamp (5) is designed as a cantilever spring which has the movable clamp cushion (12 ) wearing. 3. Greiferkopf nach den Ansprüchen 1 und 2 dadurch gekenn­zeichnet, daß an der Klemme (5) eine Gleitkufe (4) ausgebildet ist, über welche das bewegliche Klemmkissen (12) von außen direkt angesteuert werden kann.3. Gripper head according to claims 1 and 2, characterized in that a sliding block (4) is formed on the clamp (5), via which the movable clamping cushion (12) can be controlled directly from the outside. 4. Greiferkopf nach Anspruch 1, dadurch gekenn­zeichnet, daß das ortsfeste Klemmkissen (13) im Korpus (1) integriert ist.4. Gripper head according to claim 1, characterized in that the stationary clamping cushion (13) is integrated in the body (1). 5. Greiferkopf nach Anspruch 4 , dadurch gekenn­zeichnet, daß das ortsfeste und/oder bewegliche Klemmkissen (12,13) aus einem zweischichtigen Aufbau besteht, ein ausgleichendes, federndes und dämpfendes Element und ein verschleißfestes Element aufweist.5. Gripper head according to claim 4, characterized in that the stationary and / or movable clamping cushion (12, 13) consists of a two-layer structure, a compensating, resilient and damping element and a wear-resistant element having. 6. Greiferkopf nach Anspruch 1, dadurch gekenn­zeichnet, daß das ortsfeste Klemmkissen (13) im Bereich der Greiferspitze als Teil der feststehenden Klemmeinrichtung an einem Amboß (6) angeordnet ist, welcher zusätzlich eine nach vorne offene Öse (14) aufweist.6. Gripper head according to claim 1, characterized in that the stationary clamping cushion (13) is arranged in the region of the gripper tip as part of the fixed clamping device on an anvil (6), which additionally has an eyelet (14) which is open towards the front. 7. Greiferkopf nach Anspruch 1, dadurch gekenn­zeichnet, daß für das Klemmkissen (12) eine Schenkelfeder vorgesehen ist, die sich mit ihrem einen Ende am Korpus (1) abstützt und an ihrem anderen Ende das bewegliche Klemmkissen (12) aufweist.7. Gripper head according to claim 1, characterized in that a leg spring is provided for the clamping cushion (12), which is supported at one end on the body (1) and has the movable clamping cushion (12) at its other end. 8.Greiferkopf nach Anspruch 1, dadurch gekenn­zeichnet, daß zum Verschwenken des beweglichen Klemmkissens (12) eine Torsionsfeder vorgesehen ist oder eine Schraubendruckfeder, welche senkrecht zur Verschwenkachse des beweglichen Klemmkissens (12) in dem Korpus (1) angeordnet ist.8. Gripper head according to claim 1, characterized in that a torsion spring is provided for pivoting the movable clamping pad (12) or a helical compression spring which is arranged perpendicular to the pivot axis of the movable clamping pad (12) in the body (1). 9. Greiferkopf nach Anspruch 1, dadurch gekenn­zeichnet, daß am Korpus (1) seitlich ein Führungsstück (8) ausgebildet ist.9. Gripper head according to claim 1, characterized in that a guide piece (8) is formed laterally on the body (1).
EP90109969A 1989-07-15 1990-05-25 Gripper for weaving looms Expired - Lifetime EP0408870B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3923540 1989-07-15
DE3923540A DE3923540A1 (en) 1989-07-15 1989-07-15 GRIPPER HEAD FOR WEAVING MACHINES

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Publication Number Publication Date
EP0408870A1 true EP0408870A1 (en) 1991-01-23
EP0408870B1 EP0408870B1 (en) 1994-06-29

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EP90109969A Expired - Lifetime EP0408870B1 (en) 1989-07-15 1990-05-25 Gripper for weaving looms

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US (1) US5065797A (en)
EP (1) EP0408870B1 (en)
JP (1) JP2679746B2 (en)
DE (2) DE3923540A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186218A (en) * 1991-05-23 1993-02-16 Sulzer Brothers Limited Gripper changer for projectile looms

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FR1559836A (en) * 1968-01-18 1969-03-14
FR1574626A (en) * 1967-08-12 1969-07-11
FR2230765A2 (en) * 1973-05-21 1974-12-20 Mecoutil Loom weft picker has yarn clamp including one moveable jaw - which is biassed by leaf springs against fixed jaw
DE2421139A1 (en) * 1974-05-02 1975-11-06 Guesken Fa J Shuttless loom weft gripper - has a flexible curved surface forming opening to take yarn of all grades
FR2376241A1 (en) * 1976-12-30 1978-07-28 Albatex Ag
DE3519685C1 (en) * 1985-06-01 1986-08-28 Lindauer Dornier Gmbh, 8990 Lindau Fastening device for interchangeably arranged guiding bodies on non-contact looms

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Also Published As

Publication number Publication date
US5065797A (en) 1991-11-19
EP0408870B1 (en) 1994-06-29
JPH0351344A (en) 1991-03-05
JP2679746B2 (en) 1997-11-19
DE59006288D1 (en) 1994-08-04
DE3923540A1 (en) 1991-01-24

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