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EP1373618A1 - Rapier for a rapier loom - Google Patents

Rapier for a rapier loom

Info

Publication number
EP1373618A1
EP1373618A1 EP02703622A EP02703622A EP1373618A1 EP 1373618 A1 EP1373618 A1 EP 1373618A1 EP 02703622 A EP02703622 A EP 02703622A EP 02703622 A EP02703622 A EP 02703622A EP 1373618 A1 EP1373618 A1 EP 1373618A1
Authority
EP
European Patent Office
Prior art keywords
lever
head
guide means
clamping
clamping hook
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
EP02703622A
Other languages
German (de)
French (fr)
Other versions
EP1373618B1 (en
Inventor
Denis Moeneclaey
Patrick Strubbe
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.)
Picanol NV
Original Assignee
Picanol NV
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 Picanol NV filed Critical Picanol NV
Publication of EP1373618A1 publication Critical patent/EP1373618A1/en
Application granted granted Critical
Publication of EP1373618B1 publication Critical patent/EP1373618B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D03D47/236—Drawing grippers

Definitions

  • the invention relates to a slave rapier for a rapier weaving machine, at the front end of which a clamping hook with a clamping surface is provided, to which a counter-clamping surface of a head of a two-armed lever pivotally mounted about a pivot axis is assigned.
  • Such a slave gripper is known, for example, from US Pat. No. 3,986,532.
  • the two-armed lever is arranged within a longitudinal slot of a component provided with the clamping hook.
  • the clamping hook has a profiled clamping surface, which is assigned a correspondingly profiled counter surface of the head of the lever.
  • slave grippers are used which do not have a pivotable two-armed lever, but rather a finger which can be displaced in the longitudinal direction of the gripper relative to the clamping hook.
  • Such grippers are known for example from US Patents 4,736,777 and 4,739,805.
  • the fingers are held on an actuating lever by means of a swivel joint and are guided on the hook in the region of their head.
  • the object of the invention is to simplify the structure of such a gripper and to increase its functionality.
  • the guide means form a form-fitting guide transverse to the direction of movement of the head of the lever. With such a form-fitting guide no resilient loading elements or the like. needed to prevent relative movements.
  • the profiles of the hook and / or the head extend into the clamping surface and / or the counter-clamping surface.
  • the production of these profiles as a continuation of the profiles used to guide the front end of the head is simple since it is carried out with the same tools.
  • the profiles in the area of the clamping surface and / or the counter-clamping surface result in a thread being clamped securely, even if relatively small clamping forces are provided.
  • the guide means of the hook and the guide means of the head are set back with respect to the outer contour of the hook. This ensures that these guide means do not come into contact with warp threads during weaving and can cause the warp threads to get caught and / or be damaged.
  • FIG. 1 shows a partial view of a gripper according to the invention
  • Fig. 3 is a plan view on a larger scale on the area of
  • Clamping hook of the slave gripper in the closed position shows the view according to FIG. 3 in the open position
  • FIG. 6 is a view similar to FIG. 4 on a modified embodiment
  • FIG. 7 shows a section similar to FIG. 5 through a further embodiment
  • Fig. 8 is a plan view of a further embodiment
  • Fig. 9 is a view in the direction of arrow IX. on the Asutechrugnsform according to FIG. 8.
  • the slave gripper shown in FIG. 2 has a component or base body 10 which is fastened to a guide part 11 which extends a gripper belt (not shown).
  • the component 10 which is made of metal, plastic or ceramic, is provided with a clamping hook 12 at its front end.
  • a bolt or journal 13 protrudes from the component 10 and serves as a pivot axis for a two-armed lever 14, which is also made of ceramic, plastic or metal.
  • the end of one arm of the two-armed lever 14 is designed as a head 15, which forms a counter-clamping surface, which works together with a clamping surface of the clamping hook 12.
  • the end of the other arm of the lever 14 is designed as an actuating element 16 which protrudes laterally from the gripper and to which a stop is assigned, by means of which the lever 14 can be opened for opening against this stop when it starts up.
  • the lever 14 is loaded with a prestressed spring, for example a compression spring 17, which ensures that the counter-clamping surface of the head 15 of the lever 14 bears against the clamping surface of the clamping hook 12 with a defined force.
  • a cover element (not shown), which covers the area of the compression spring 17 and is fastened to the component 10, serves as an abutment for the compression spring 17.
  • This cover element is expediently designed such that it also serves as a connecting element which connects the guide part 11 to the gripper belt, not shown.
  • the cover element is made of metal or plastic and is provided with guide strips or guide edges which prevent the gripper belt and / or the guide part 11 from coming into contact with warp threads.
  • the front end of the head 15 of the lever is provided with guide means 18 in the form of a plurality of ribs and grooves located therebetween (FIG. 5), which engage with correspondingly designed guide means 19 of the clamping hook 12.
  • the guide means 18, 19 extend transversely to the pivot axis of the lever 14 formed in front of the bolt 13, so that they guide the lever 14 in the axial direction to the pivot axis.
  • the guide means 18, 19 form a form-fitting guide transverse to the direction of movement of the head 15 of the lever, so that the head 15 of the lever cannot move axially to the pivot axis due to oscillations or vibrations.
  • the guide means 18, 19 in the form of V-shaped ribs and grooves also extend into the clamping surface of the clamping hook 12 and into the counter-clamping surface of the head 15 in the exemplary embodiment.
  • These profiles can be simply and continuously by means of a milling tool and / or grinding tool Realize profiling.
  • the guide means 19 are also worked into the area opposite the clamping surface of the clamping hook 12 and run out there.
  • the guide means 18, 19 each consist of several essentially identical grooves and ribs. Deviations from this shape are easily possible, in particular the number of ribs and grooves can be increased or decreased.
  • the ribs and grooves do not all have to be identical to one another.
  • the profiles, which extend into the region of the clamping surface of the clamping hook 12 and the counter-clamping surface of the head 15, can differ from the guide means guiding the end region of the head 15 his.
  • the grooves can be deeper and / or the ribs shorter in the area of the clamping surface and the counter surface.
  • the ribs and grooves, which form the guide means 19 of the clamping hook 12, run tangentially or concentrically to the pivot axis formed by the bolt 13 in the region which is assigned to the front end of the head 15 of the lever 14.
  • a recess 20 is provided in the clamping hook between the profiles 19 formed from ribs and grooves, which are assigned to the profiles 18 of the front end of the head 15 of the lever 14, and the extensions inserted into the clamping surface. This makes it possible to guide a thread in this recess 20 when it is released, without it having to move along the profilings forming the guide means 19.
  • the component 10 has an essentially flat upper side, to which the lever 14 extends parallel.
  • a border 21 protrudes from this flat surface of the component 10 and ends with guide edges 22, 23 in the plane of the component 10.
  • This border 21 is provided on the inside with the guide means 19 for the head 15 of the lever 14.
  • the front end of the clamping hook is pointed and lies approximately at the level of the underside of component 10. The tip thickens in a wedge shape in the direction of the border.
  • FIG. 7 shows an embodiment similar to FIG. 5, in which the front end of the head 15 of the lever 14 is covered at the top and bottom by means of shields 24 of the hook-shaped part of the base body 10. These shields 24, which are also located on both sides of the head 15, serve to reduce the risk of threads entering the region of the clamping hook 12.
  • the clamping surface of the clamping hook 12 and / or the counter-clamping surface of the head 15 are not profiled in a modified embodiment.
  • the component 10 'to which the lever 14 is articulated is cranked in its end region in such a way that the clamping hook 12 and the lever 14' indicated with dotted lines are in a common level.
  • the area of the component 10 'opposite the clamping hook 12 is provided with a longitudinal slot 25 through which the lever 14' with its head 15 'can be moved.
  • the component 10 ' forms a bracket 26 which covers the area of the head 15' of the lever 14 'upwards.
  • a guide rib 27 projects upwards from this bracket 26 and runs parallel to the clamping hook 12 and thus essentially in the longitudinal direction of the slave gripper.
  • the invention is not limited to the exemplary embodiments shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention relates to a receiving gripper for a rapier weaving machine, the gripper being fitted at one end with a clamping hook (12) including a clamping surface, the hook being paired with a mating clamp face of a head (15) of a pivotably supported, two-arm lever (14), wherein both the end face of the head (15) and the clamping hook (12) are fitted with guide elements (18, 19) guiding the lever head in the circumferential direction relative to a pivot pin for the lever.

Description

Nehmergreifer für eine Greiferwebmaschine Slave rapier for a rapier weaving machine
Die Erfindung betrifft einen Nehmergreifer für eine Greiferwebmaschine, an dessen vorderem Ende ein Klemmhaken mit einer Klemmfläche vorgesehen ist, dem eine Gegenklemmfläche eines Kopfes eines um eine Schwenkachse schwenkbar gelagerten zweiarmigen Hebels zugeordnet ist.The invention relates to a slave rapier for a rapier weaving machine, at the front end of which a clamping hook with a clamping surface is provided, to which a counter-clamping surface of a head of a two-armed lever pivotally mounted about a pivot axis is assigned.
Ein derartiger Nehmergreifer ist beispielsweise aus dem US-Patent 3 986 532 bekannt. Der zweiarmige Hebel ist innerhalb eines Längsschlitzes eines mit dem Klemmhaken versehenen Bauteils angeordnet. Der Klemmhaken besitzt eine profilierte Klemmfläche, der eine entsprechend profilierte Gegenfläche des Kopfs des Hebels zugeordnet ist.Such a slave gripper is known, for example, from US Pat. No. 3,986,532. The two-armed lever is arranged within a longitudinal slot of a component provided with the clamping hook. The clamping hook has a profiled clamping surface, which is assigned a correspondingly profiled counter surface of the head of the lever.
In der Praxis werden Nehmergreifer eingesetzt, die keinen schwenkbaren zweiarmigen Hebel, sondern einen in Längsrichtung des Greifers relativ zu dem Klemmhaken verschiebbare Finger aufweisen. Derartige Nehmergreifer sind beispielsweise aus den US-Patenten 4 736 777 und 4 739 805 bekannt. Die Finger werden mittels eines Drehgelenkes an einem Betätigungshebel gehalten und im Bereich ihres Kopfes an dem Haken geführt. Der Erfindung liegt die Aufgabe zugrunde, den Aufbau eines derartigen Neh- mergreifers zu vereinfachen und seine Funktionsfähigkeit zu erhöhen.In practice, slave grippers are used which do not have a pivotable two-armed lever, but rather a finger which can be displaced in the longitudinal direction of the gripper relative to the clamping hook. Such grippers are known for example from US Patents 4,736,777 and 4,739,805. The fingers are held on an actuating lever by means of a swivel joint and are guided on the hook in the region of their head. The object of the invention is to simplify the structure of such a gripper and to increase its functionality.
Diese Aufgabe wird dadurch gelöst, dass das Stirnende des Kopfes des Hebels und der Klemmhaken mit ineinandergreifenden Führungsmitteln versehen sind, die den Kopf des Hebels in axialer Richtung der Schwenkachse führen.This object is achieved in that the front end of the head of the lever and the clamping hooks are provided with interlocking guide means which guide the head of the lever in the axial direction of the pivot axis.
Auf diese Weise wird eine sehr einfache und auch mit kleinen Abmessungen verwirklichbare Konstruktion erhalten, bei welcher aufgrund des Schwenkens eine relativ kleine Bewegung ausreicht, um Klemmfläche des Hakens und Gegenklemmfläche des Kopfes relativ weit und/oder schnell auseinander zu be- wegen, um einen Faden freigeben zu können. Die Führungsmittel zwischen dem Stirnende des Kopfes und dem Klemmhaken verhindern, dass in axialer Richtung der Schwenkachse aufgrund von Schwingungen oder Vibrationen Re- lativbewegungen zwischen dem Kopf und dem Klemmhaken auftreten können, die zu einem Lockern des Fadens und/oder zu einer Beschädigung des Hebels oder des Klemmhakens führen könnten.In this way, a very simple construction, which can also be realized with small dimensions, is obtained, in which, due to the pivoting, a relatively small movement is sufficient to move the clamping surface of the hook and the counter-clamping surface of the head relatively far and / or quickly apart, in order to create a thread to be able to release. The guiding means between the front end of the head and the clamping hook prevent that in the axial direction of the pivot axis due to oscillations or vibrations. relative movements between the head and the clamping hook can occur, which could lead to loosening of the thread and / or damage to the lever or the clamping hook.
In Ausgestaltung der Erfindung wird vorgesehen, dass die Führungsmittel eine quer zur Bewegungsrichtung des Kopfes des Hebels formschlüssige Führung bilden. Bei einer derartigen formschlüssigen Führung werden keine federnden Belastungselemente o.dgl. benötigt, um Relativbewegungen zu verhindern.In an embodiment of the invention it is provided that the guide means form a form-fitting guide transverse to the direction of movement of the head of the lever. With such a form-fitting guide no resilient loading elements or the like. needed to prevent relative movements.
In weiterer Ausgestaltung der Erfindung wird vorgesehen, dass die Profilierungen des Hakens und/oder des Kopfes sich bis in die Klemmfläche und/oder die Gegenklemmfläche hinein erstrecken. Die Herstellung dieser Profilierungen als Fortsetzung der zur Führung des Stirnendes des Kopfes dienenden Profilierungen ist einfach, da sie mit den gleichen Werkzeugen durchgeführt wird. Die Pro- filierungen im Bereich der Klemmfläche und/oder der Gegenklemmfläche führen dazu, dass ein Faden sicher geklemmt wird, auch wenn relativ kleine Klemmkräfte vorgesehen werden.In a further embodiment of the invention it is provided that the profiles of the hook and / or the head extend into the clamping surface and / or the counter-clamping surface. The production of these profiles as a continuation of the profiles used to guide the front end of the head is simple since it is carried out with the same tools. The profiles in the area of the clamping surface and / or the counter-clamping surface result in a thread being clamped securely, even if relatively small clamping forces are provided.
In weiterer Ausgestaltung der Erfindung wird vorgesehen, dass die Führungs- mittel des Hakens und die Führungsmittel des Kopfes gegenüber der Außenkontur des Hakens zurückgesetzt sind. Damit wird sichergestellt, dass diese Führungsmittel beim Weben nicht mit Kettfäden in Berührung kommen und zu einem Verhaken und/oder Beschädigen der Kettfäden Anlass sein können.In a further embodiment of the invention it is provided that the guide means of the hook and the guide means of the head are set back with respect to the outer contour of the hook. This ensures that these guide means do not come into contact with warp threads during weaving and can cause the warp threads to get caught and / or be damaged.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung der in den Zeichnungen dargestellten Ausführungsformen.Further features and advantages of the invention result from the following description of the embodiments shown in the drawings.
Fig. 1 zeigt eine Teil-Ansicht eines erfindungsgemäßen Nehmergreifers,1 shows a partial view of a gripper according to the invention,
Fig. 2 Einzelteile des Nehmergreifers der Fig. 1 in einer Explosionsdarstellung,2 individual parts of the slave gripper of FIG. 1 in an exploded view,
Fig. 3 eine Draufsicht in größerem Maßstab auf den Bereich desFig. 3 is a plan view on a larger scale on the area of
Klemmhakens des Nehmergreifers in geschlossener Stellung, Fig. 4 die Ansicht nach Fig. 3 in geöffneter Stellung,Clamping hook of the slave gripper in the closed position, 4 shows the view according to FIG. 3 in the open position,
Fig. 5 einen Schnitt entlang der Linie V-V der Fig. 4,5 shows a section along the line V-V of FIG. 4,
Fig. 6 eine Ansicht ähnlich Fig. 4 auf eine abgewandelte Ausführungsform,6 is a view similar to FIG. 4 on a modified embodiment,
Fig. 7 einen Schnitt ähnlich Fig. 5 durch eine weitere Ausführungsform,7 shows a section similar to FIG. 5 through a further embodiment,
Fig. 8 eine Draufsicht auf eine weitere Ausführungsform undFig. 8 is a plan view of a further embodiment and
Fig. 9 eine Ansicht in Richtung des Pfeils IX. auf die Asuführugnsform nach Fig. 8.Fig. 9 is a view in the direction of arrow IX. on the Asuführugnsform according to FIG. 8.
Der in Fig. 2 dargestellte Nehmergreifer besitzt ein Bauteil oder Grundkörper 10, der an einem Führungsteil 11 befestigt ist, das ein nicht dargestelltes Greiferband verlängert. Das Bauteil 10, das aus Metall, Kunststoff oder Keramik hergestellt ist, ist an seinem vorderen Ende mit einem Klemmhaken 12 versehen. In Richtung lotrecht zu dem aus Kunststoff hergestellten Führungsteil 11 und damit lotrecht zu dem Greiferband ragt von dem Bauteil 10 ein Bolzen oder Achszapfen 13 ab, der als Schwenkachse für einen zweiarmigen Hebel 14 dient, der ebenfalls aus Keramik, Kunststoff oder Metall hergestellt ist. Das Ende des einen Arms des zweiarmigen Hebels 14 ist als ein Kopf 15 ausgebildet, der eine Gegenklemmfläche bildet, die mit einer Klemmfläche des Klemmha- kens 12 zusammen arbeitet. Das Ende des anderen Arms des Hebels 14 ist als ein Betätigungselement 16 gestaltet, das seitlich aus dem Greifer herausragt und dem ein Anschlag zugeordnet ist, mittels dessen der Hebel 14 zum Öffnen beim Anlaufen gegen diesen Anschlag geöffnet werden kann. In dem Bereich des Betätigungselementes ist der Hebel 14 mit einer vorgespannten Feder, z.B. einer Druckfeder 17, belastet, die dafür sorgt, dass die Gegenklemmfläche des Kopfes 15 des Hebels 14 mit einer definierten Kraft an der Klemmfläche des Klemmhakens 12 anlegt. Als Widerlager für die Druckfeder 17 dient ein nicht dargestelltes Abdeckelement, das den Bereich der Druckfeder 17 abdeckt und an dem Bauteil 10 befestigt ist. Dieses Abdeckelement wird zweckmäßigerweise so ausgebildet, dass es auch als Verbindungselement dient, das das Führungsteil 11 mit dem nicht dargestellten Greiferband verbindet. Das Abdeckelement besteht aus Metall oder Kunststoff und ist mit Führungsleisten oder Führungskanten versehen, die verhindern, dass das Greiferband und/oder das Führungsteil 11 mit Kettfäden in Berührung kommen können.The slave gripper shown in FIG. 2 has a component or base body 10 which is fastened to a guide part 11 which extends a gripper belt (not shown). The component 10, which is made of metal, plastic or ceramic, is provided with a clamping hook 12 at its front end. In the direction perpendicular to the guide part 11 made of plastic and thus perpendicular to the gripper belt, a bolt or journal 13 protrudes from the component 10 and serves as a pivot axis for a two-armed lever 14, which is also made of ceramic, plastic or metal. The end of one arm of the two-armed lever 14 is designed as a head 15, which forms a counter-clamping surface, which works together with a clamping surface of the clamping hook 12. The end of the other arm of the lever 14 is designed as an actuating element 16 which protrudes laterally from the gripper and to which a stop is assigned, by means of which the lever 14 can be opened for opening against this stop when it starts up. In the area of the actuating element, the lever 14 is loaded with a prestressed spring, for example a compression spring 17, which ensures that the counter-clamping surface of the head 15 of the lever 14 bears against the clamping surface of the clamping hook 12 with a defined force. A cover element (not shown), which covers the area of the compression spring 17 and is fastened to the component 10, serves as an abutment for the compression spring 17. This cover element is expediently designed such that it also serves as a connecting element which connects the guide part 11 to the gripper belt, not shown. The cover element is made of metal or plastic and is provided with guide strips or guide edges which prevent the gripper belt and / or the guide part 11 from coming into contact with warp threads.
Das Stirnende des Kopfes 15 des Hebels ist mit Führungsmitteln 18 in Form von mehreren Rippen und dazwischen liegenden Nuten (Fig. 5) versehen, die mit entsprechend gestalteten Führungsmitteln 19 des Klemmhakens 12 in Eingriff sind. Die Führungsmittel 18, 19 verlaufen quer zur vor dem Bolzen 13 gebildeten Schwenkachse des Hebels 14, so dass sie den Hebel 14 in axialer Richtung zur Schwenkachse führen. Die Führungsmittel 18, 19 bilden dabei quer zur Bewegungsrichtung des Kopfes 15 des Hebels eine formschlüssige Führung, so dass der Kopf 15 des Hebels sich aufgrund von Schwingungen oder Vibrationen nicht axial zur Schwenkachse bewegen kann.The front end of the head 15 of the lever is provided with guide means 18 in the form of a plurality of ribs and grooves located therebetween (FIG. 5), which engage with correspondingly designed guide means 19 of the clamping hook 12. The guide means 18, 19 extend transversely to the pivot axis of the lever 14 formed in front of the bolt 13, so that they guide the lever 14 in the axial direction to the pivot axis. The guide means 18, 19 form a form-fitting guide transverse to the direction of movement of the head 15 of the lever, so that the head 15 of the lever cannot move axially to the pivot axis due to oscillations or vibrations.
Die Führungsmittel 18, 19 in Form von V-förmigen Rippen und Nuten erstrecken sich bei dem Ausführungsbeispiel auch in die Klemmfläche des Klemmhakens 12 sowie in die Gegenklemmfläche des Kopfes 15. Diese Profilierungen lassen sich in einfacher Weise mittels eines Fräswerkzeuges und/oder Schleifwerkzeuges als kontinuierliche Profilierungen realisieren. Wie insbesondere auch aus Fig. 2 zu ersehen ist, sind dabei die Führungsmittel 19 auch in den der Klemmfläche des Klemmhakens 12 gegenüberliegenden Bereich hineingearbeitet und laufen dort aus.The guide means 18, 19 in the form of V-shaped ribs and grooves also extend into the clamping surface of the clamping hook 12 and into the counter-clamping surface of the head 15 in the exemplary embodiment. These profiles can be simply and continuously by means of a milling tool and / or grinding tool Realize profiling. As can be seen in particular from FIG. 2, the guide means 19 are also worked into the area opposite the clamping surface of the clamping hook 12 and run out there.
Bei dem Ausführungsbeispiel bestehen die Führungsmittel 18, 19 jeweils aus mehreren im wesentlichen untereinander gleichen Nuten und Rippen. Abweichungen von dieser Form sind ohne weiteres möglich, insbesondere kann die Anzahl der Rippen und Nuten vergrößert oder verkleinert werden. Dabei müssen die Rippen und Nuten auch nicht alle untereinander gleich sein. Des weiteren können die Profilierungen, die sich in den Bereich der Klemmfläche des Klemmhakens 12 und der Gegenklemmfläche des Kopfes 15 erstrecken, von den den Stirnbereich des Kopfes 15 führenden Führungsmitteln verschieden sein. Beispielsweise können im Bereich der Klemmfläche und der Gegenfläche die Nuten tiefer und/oder die Rippen kürzer sein.In the exemplary embodiment, the guide means 18, 19 each consist of several essentially identical grooves and ribs. Deviations from this shape are easily possible, in particular the number of ribs and grooves can be increased or decreased. The ribs and grooves do not all have to be identical to one another. Furthermore, the profiles, which extend into the region of the clamping surface of the clamping hook 12 and the counter-clamping surface of the head 15, can differ from the guide means guiding the end region of the head 15 his. For example, the grooves can be deeper and / or the ribs shorter in the area of the clamping surface and the counter surface.
Die Rippen und Nuten, die die Führungsmittel 19 des Klemmhakens 12 bilden, verlaufen in dem Bereich, die dem Stirnende des Kopfes 15 des Hebels 14 zugeordnet sind tangential oder konzentrisch zu der von dem Bolzen 13 gebildeten Schwenkachse.The ribs and grooves, which form the guide means 19 of the clamping hook 12, run tangentially or concentrically to the pivot axis formed by the bolt 13 in the region which is assigned to the front end of the head 15 of the lever 14.
Bei dem Ausführungsbeispiel nach Fig. 6 ist zwischen den aus Rippen und Nu- ten gebildeten Profilierungen 19, die den Profilierungen 18 des Stirnendes des Kopfes 15 des Hebels 14 zugeordnet sind, und den in die Klemmfläche hineingeführten Verlängerungen eine Aussparung 20 in dem Klemmhaken vorgesehen. Dadurch ist es möglich, einen Faden bei einem Freigeben in dieser Aussparung 20 zu führen, ohne dass er sich entlang der die Führungsmittel 19 bil- denden Profilierungen bewegen muss.In the embodiment according to FIG. 6, a recess 20 is provided in the clamping hook between the profiles 19 formed from ribs and grooves, which are assigned to the profiles 18 of the front end of the head 15 of the lever 14, and the extensions inserted into the clamping surface. This makes it possible to guide a thread in this recess 20 when it is released, without it having to move along the profilings forming the guide means 19.
Aus Fig. 2 ist zu ersehen, dass das Bauteil 10 eine im wesentlichen ebene O- berseite aufweist, zu welcher sich der Hebel 14 parallel erstreckt. Im Bereich des Klemmhakens 12 ragt von dieser ebenen Fläche des Bauteils 10 eine Ein- fassung 21 ab, die mit Führungskanten 22, 23 in die Ebene des Bauteils 10 ausläuft. Diese Einfassung 21 ist innen mit den Führungsmitteln 19 für den Kopf 15 des Hebels 14 versehen. Das vordere Ende des Klemmhakens ist spitz und liegt in etwa in der Höhe der Unterseite des Bauteils 10. Die Spitze verdickt sich in Richtung zu der Einfassung keilförmig.It can be seen from FIG. 2 that the component 10 has an essentially flat upper side, to which the lever 14 extends parallel. In the area of the clamping hook 12, a border 21 protrudes from this flat surface of the component 10 and ends with guide edges 22, 23 in the plane of the component 10. This border 21 is provided on the inside with the guide means 19 for the head 15 of the lever 14. The front end of the clamping hook is pointed and lies approximately at the level of the underside of component 10. The tip thickens in a wedge shape in the direction of the border.
Fig. 7 zeigt ein Ausführungsbeispiel ähnlich Fig. 5, bei welchem das vordere Ende des Kopfes 15 des Hebels 14 oben und unten mittels Abschirmungen 24 des hakenförmigen Teils des Grundkörpers 10 abgedeckt ist. Diese Abschirmungen 24, die sich auch zu beiden Seiten des Kopfes 15 befinden, dienen dazu, die Gefahr des Eindringens von Fäden in den Bereich des Klemmhakens 12 zu verringern. Die Klemmfläche des Klemmhakens 12 und/oder die Gegenklemmfläche des Kopfes 15 sind bei einer abgewandelten Ausführungsform nicht profiliert.FIG. 7 shows an embodiment similar to FIG. 5, in which the front end of the head 15 of the lever 14 is covered at the top and bottom by means of shields 24 of the hook-shaped part of the base body 10. These shields 24, which are also located on both sides of the head 15, serve to reduce the risk of threads entering the region of the clamping hook 12. The clamping surface of the clamping hook 12 and / or the counter-clamping surface of the head 15 are not profiled in a modified embodiment.
Bei dem Ausführungsbeispiel nach Fig. 8 und 9 ist das Bauteil 10', an welchem der Hebel 14 angelenkt ist, in seinem Endbereich so gekröpft, dass der Klemmhaken 12 und der mit gepünkelten Linien angedeutete Hebel 14' in einer ge- meinsamen Ebene liegen. Der dem Klemmhaken 12 gegenüberliegende Bereich des Bauteils 10' ist mit einem Längsschlitz 25 versehen, durch welchen der Hebel 14' mit seinem Kopf 15' hindurch bewegt werden kann. Dadurch bildet das Bauteil 10' einen Bügel 26, der den Bereich des Kopfes 15' des Hebels 14' nach oben überdeckt. Von diesem Bügel 26 ragt nach oben eine Führungsrippe 27 ab, die parallel zu dem Klemmhaken 12 und damit im Wesentlichen in Längsrichtung des Nehmergreifers verläuft.In the embodiment according to FIGS. 8 and 9, the component 10 'to which the lever 14 is articulated is cranked in its end region in such a way that the clamping hook 12 and the lever 14' indicated with dotted lines are in a common level. The area of the component 10 'opposite the clamping hook 12 is provided with a longitudinal slot 25 through which the lever 14' with its head 15 'can be moved. As a result, the component 10 'forms a bracket 26 which covers the area of the head 15' of the lever 14 'upwards. A guide rib 27 projects upwards from this bracket 26 and runs parallel to the clamping hook 12 and thus essentially in the longitudinal direction of the slave gripper.
Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele begrenzt. Insbesondere ist es möglich, zusätzlich eine Führungsrippe ähnlich der Führungsrippe 27 im vorderen Bereich des Bauteils 10' des Ausführungsbeispiels nach Fig. 8 und 9 vorzusehen, die nach unten von dem Bauteil abragt. The invention is not limited to the exemplary embodiments shown. In particular, it is possible to additionally provide a guide rib similar to the guide rib 27 in the front region of the component 10 'of the exemplary embodiment according to FIGS. 8 and 9, which projects downward from the component.

Claims

Patentansprüche claims
1. Nehmergreifer für eine Greiferwebmaschine, an dessen vorderem Ende ein Klemmhaken (12) mit einer Klemmfläche vorgesehen ist, dem eine1. slave gripper for a rapier weaving machine, at the front end of which a clamping hook (12) is provided with a clamping surface, the one
Gegenklemmfläche eines Kopfes (15) eines um eine Schwenkachse schwenkbar gelagerten, zweiarmigen Hebels (14) zugeordnet ist, dadurch gekennzeichnet, dass das Stirnende des Kopfes (15) des Hebels (14) und der Klemmhaken (12) mit ineinander greifenden Führungsmitteln (18, 19) versehen sind, die den Kopf (15) des Hebels (14) in axialer Richtung der Schwenkachse des Hebels führen.Counter-clamping surface of a head (15) is assigned to a two-armed lever (14) which is pivotably mounted about a pivot axis, characterized in that the front end of the head (15) of the lever (14) and the clamping hooks (12) with interlocking guide means (18, 19) are provided which guide the head (15) of the lever (14) in the axial direction of the pivot axis of the lever.
2. Nehmergreifer nach Anspruch 1 , dadurch gekennzeichnet, dass die Führungsmittel (18, 19) eine quer zur Bewegungsrichtung des Kopfes (15) des Hebels (14) formschlüssige Führung bilden.2. Slave gripper according to claim 1, characterized in that the guide means (18, 19) form a form-fitting guide transverse to the direction of movement of the head (15) of the lever (14).
3. Nehmergreifer nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Führungsmittel (18) des Kopfes (15) des Hebels (14) und die Führungsmittel (19) des Klemmhakens (12) ineinander greifende Profilierungen sind.3. slave gripper according to claim 1 or 2, characterized in that the guide means (18) of the head (15) of the lever (14) and the guide means (19) of the clamping hook (12) are interlocking profiles.
4. Nehmergreifer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Führungsmittel (19) des Klemmhakens (12) im wesentlichen tangential zur Schwenkachse des Hebels (14) gerichtet sind.4. slave gripper according to one of claims 1 to 3, characterized in that the guide means (19) of the clamping hook (12) are directed substantially tangentially to the pivot axis of the lever (14).
5. Nehmergreifer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Führungsmittel (19) des Klemmhakens (12) im wesentlichen konzentrisch zur Schwenkachse des Hebels (14) verlaufen.5. slave gripper according to one of claims 1 to 3, characterized in that the guide means (19) of the clamping hook (12) are substantially concentric with the pivot axis of the lever (14).
6. Nehmergreifer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Profilierungen des Klemmhakens (12) und/oder des Kopfes (15) sich bis in die Klemmfläche und/oder die Gegenklemmfläche hinein erstrecken.6. Slave gripper according to one of claims 1 to 5, characterized in that the profiles of the clamping hook (12) and / or the head (15) extend into the clamping surface and / or the counter-clamping surface.
7. Nehmergreifer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Klemmhaken (12) zwischen den sich in dem Bereich der Klemmfläche erstreckenden Führungsmitteln und in dem Stirnende des Kopfes (15) des Hebels (14) zugeordneten Führungsmitteln eine Aussparung (20) aufweist.7. slave gripper according to one of claims 1 to 6, characterized in that the clamping hook (12) between the extending in the region of the clamping surface guide means and in the front end of the head (15) of the lever (14) associated guide means has a recess (20).
8. Nehmergreifer nach einem der Ansprüche 1 bis 7, dadurch gekenn- zeichnet, dass die Führungsmittel (19) des Klemmhakens (12) und die Führungsmittel (18) des Kopfes gegenüber der Außenkontur des Klemmhakens zurückgesetzt sind.8. slave gripper according to one of claims 1 to 7, characterized in that the guide means (19) of the clamping hook (12) and the guide means (18) of the head are set back with respect to the outer contour of the clamping hook.
9. Nehmergreifer nach Anspruch 8, dadurch gekennzeichnet, dass der Hebel (14) sich im wesentlichen parallel zu einem Bauteil (10) erstreckt, dessen9. slave gripper according to claim 8, characterized in that the lever (14) extends substantially parallel to a component (10), the
Ende den Klemmhaken (12) aufweist, in dessen Bereich eine Einfassung (21 ) für den Kopf (15) des Hebels (14) vorgesehen ist, die innen mit den Führungsmitteln (19) versehen ist.End has the clamping hook (12), in the area of which a bezel (21) for the head (15) of the lever (14) is provided, which is provided on the inside with the guide means (19).
10. Nehmergreifer nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der dem Klemmhaken (12) gegenüberliegende Bereich des Bauteils (10') mit einem den Kopf (15') des Hebels (14') auf der Oberseite überdeckenden Bügel (26) versehen ist.10. slave gripper according to one of claims 1 to 9, characterized in that the region of the component (10 ') opposite the clamping hook (12) with a head (15') of the lever (14 ') on the top covering bracket (26 ) is provided.
11. Nehmergreifer nach Anspruch 10, dadurch gekennzeichnet, dass der Bügel (26) eine im wesentlichen in Längsrichtung des Nehmergreifes verlaufende, nach oben ragende Führungsrippe (27) aufweist. 11. slave gripper according to claim 10, characterized in that the bracket (26) has a substantially in the longitudinal direction of the slave gripper, upwardly projecting guide rib (27).
EP02703622A 2001-03-21 2002-03-06 Rapier for a rapier loom Expired - Lifetime EP1373618B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10114755 2001-03-21
DE10114755A DE10114755A1 (en) 2001-03-21 2001-03-21 Gripper clip for gripper loom, has pivoted gripper finger with guide surfaces at its end to restrain transverse motion
PCT/EP2002/002411 WO2002077343A1 (en) 2001-03-21 2002-03-06 Rapier for a rapier loom

Publications (2)

Publication Number Publication Date
EP1373618A1 true EP1373618A1 (en) 2004-01-02
EP1373618B1 EP1373618B1 (en) 2007-07-25

Family

ID=7679050

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Application Number Title Priority Date Filing Date
EP02703622A Expired - Lifetime EP1373618B1 (en) 2001-03-21 2002-03-06 Rapier for a rapier loom

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US (1) US6866069B2 (en)
EP (1) EP1373618B1 (en)
CN (1) CN1258623C (en)
AT (1) ATE368141T1 (en)
DE (2) DE10114755A1 (en)
ES (1) ES2289084T3 (en)
WO (1) WO2002077343A1 (en)

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WO2009135636A1 (en) 2008-05-07 2009-11-12 Picanol N.V. Receiving gripper, feed gripper and device for a gripper weaving machine

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DE10114756A1 (en) * 2001-03-21 2002-09-26 Picanol Nv Gripper clip for gripper loom, has movable gripper finger made of ceramic material
DE10134504A1 (en) * 2001-07-05 2003-01-16 Picanol Nv Method and device for opening a gripper clamp of a gripper of a weaving machine
DE102005014107A1 (en) * 2005-03-22 2006-09-28 Picanol N.V. Receiving gripper with a hook-shaped insert and method for producing the hook-shaped insert
BE1023036A1 (en) 2015-05-07 2016-11-09 Picanol Nv GRIPPER OPERATOR FOR A WEAVING MACHINE
BE1024494B1 (en) * 2016-08-11 2018-03-12 Picanol Naamloze Vennootschap GRIPPER TIE AND GRIPER FOR A GRIPPER WEAVING MACHINE

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BG17344A3 (en) * 1969-11-11 1973-07-25 Lindauer Dornier Gmbh DEVICE FOR APPLYING THE WEAVING THREAD FOR SHUTTLELESS WEAVING MACHINES
US3986532A (en) * 1975-09-23 1976-10-19 Rockwell International Corporation Weft extending carrier
AT377540B (en) * 1982-11-05 1985-03-25 Saurer Ag Adolph Weft gripper for a weaving machine
BE902141A (en) * 1985-04-09 1985-10-09 Picanol Nv IMPROVED GRAPHERS FOR WEAVING MACHINES.
EP0864679B1 (en) * 1997-03-14 2002-12-18 Sulzer Textil AG Gripper clamp for a carrying gripper and loom with a gripper clamp

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Publication number Priority date Publication date Assignee Title
WO2009135636A1 (en) 2008-05-07 2009-11-12 Picanol N.V. Receiving gripper, feed gripper and device for a gripper weaving machine

Also Published As

Publication number Publication date
DE10114755A1 (en) 2002-09-26
CN1258623C (en) 2006-06-07
ES2289084T3 (en) 2008-02-01
ATE368141T1 (en) 2007-08-15
US6866069B2 (en) 2005-03-15
DE50210552D1 (en) 2007-09-06
US20040173278A1 (en) 2004-09-09
EP1373618B1 (en) 2007-07-25
WO2002077343A1 (en) 2002-10-03
CN1498294A (en) 2004-05-19

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