EP0581020A1 - Device for tensioning at least one profiled strap around at least one tubular body - Google Patents

Device for tensioning at least one profiled strap around at least one tubular body Download PDF

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Publication number
EP0581020A1
EP0581020A1 EP93110131A EP93110131A EP0581020A1 EP 0581020 A1 EP0581020 A1 EP 0581020A1 EP 93110131 A EP93110131 A EP 93110131A EP 93110131 A EP93110131 A EP 93110131A EP 0581020 A1 EP0581020 A1 EP 0581020A1
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EP
European Patent Office
Prior art keywords
lever
spring
sliding carriage
housing
cutting
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
EP93110131A
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German (de)
French (fr)
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EP0581020B1 (en
Inventor
Willibald Kraus
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TRW United Carr GmbH and Co
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TRW United Carr GmbH and Co
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Publication date
Application filed by TRW United Carr GmbH and Co filed Critical TRW United Carr GmbH and Co
Publication of EP0581020A1 publication Critical patent/EP0581020A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/025—Hand-held tools
    • B65B13/027—Hand-held tools for applying straps having preformed connecting means, e.g. cable ties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/22—Means for controlling tension of binding means

Definitions

  • the invention relates to a device for tensioning at least one band element which is wrapped around at least one tubular body and has a resilient locking element which interacts with the profiled band element within a through opening.
  • Devices of this type are already known as the general state of the art, which are generally equipped with a spring-loaded band driver, which is pivotably mounted about a fulcrum in a spring-loaded sliding carriage within a housing. Furthermore, a cutting lever with a knife, which can be pivoted about a pivot point fixed to the housing, is used in the area of the belt driver. In addition, a trigger lever pivotable about a pivot point fixed to the housing is provided, by means of which the sliding carriage and the cutting lever can be actuated.
  • This known device is used to tighten a profiled band element wrapped around at least one tubular body in such a way that a very good mounting results. Once this tight bracket has been made, the protruding area of the profiled band element is cut off using the knife attached to the front of the cutting lever.
  • a disadvantage of known constructions is that the protruding profiled band element is cut off under tension, so that the plastic material from which the profiled band element generally consists can spring back. This ensures that the wrapped tubular body is no longer properly and tightly secured, and in addition the profiled band element can be torn out of the resilient locking element due to the tension present during cutting. Cutting off the excess tape element under tension therefore has considerable disadvantages in practice.
  • the present invention is therefore based on the object to provide a device according to the preamble of claim 1, which ensures in a simple manner that the cutting off of the protruding band element takes place in the relaxed state.
  • the pivotable cam element can be designed as a deflection lever mounted in a pivot point of the trigger lever, which has at least one support roller as a support at the free end.
  • This support roller can be stored against the action of a spring in a counter profile of the release lever and can be pressed out of it when the trigger lever is actuated. This ensures that a relaxation process occurs briefly after completion of the tensioning, at the end of which the cutting process is carried out.
  • the spring can be designed as a tension spring and can be fastened on the one hand to the release lever and on the other hand to the sliding carriage.
  • the tension spring can be designed to be adjustable, for example can be arranged on the sliding carriage via a guide slide.
  • the guide carriage is connected to an adjusting screw which is rotatably mounted in the sliding carriage. With the help of this screw, the tension of the tension spring can be easily adjusted, which in turn is transferred to the release lever.
  • the sliding carriage in the region of the free end of the deflection lever can have a curve for deflecting it, via which the deflection lever acts on the cutting lever.
  • the cutting lever can be acted on the upper side against the action of a spring via the support roller which is guided by the curve guidance of the sliding carriage. The protruding end of the band element is thus cut off immediately after the relaxation process.
  • the spring-loaded band driver can have a central profile area, which is placed on the transverse profile of the profiled band element, and lateral smooth support areas. This ensures that the longitudinal webs of the profiled band element do not come into the area of influence of the band driver.
  • a plate fixed to the housing can be arranged below the band element, the distance between the support areas and the plate being smaller than the diameter of the respective longitudinal webs of the profiled band element.
  • the plate fixed to the housing can be curved on the upper side.
  • the device 1 according to the invention is used for tensioning at least one band element 3 which is wrapped around at least one tubular body 2.
  • the band element 3 has a head part 4, which has a resilient locking element 6 which interacts with the profiled band element 3 within a through opening 5.
  • the device 1 has a belt driver 7, which is arranged in the mouth region 7.
  • This belt driver 7 is - pivotable about a pivot point 8 - mounted in a sliding carriage 9.
  • the band driver 7 is acted upon by a torsion spring 37, wherein in the position shown in FIG. 1 this torsion spring 37 causes the band driver 8 to bear against a stop 33 in the mouth region of the device 1.
  • the sliding carriage 9 is mounted within a housing 10 and is acted upon on the rear side by a compression spring 30 which is supported on the one hand on the housing 10 and on the other hand is supported in the region of a system 31 of the sliding carriage 9.
  • a compression spring 30 which is supported on the one hand on the housing 10 and on the other hand is supported in the region of a system 31 of the sliding carriage 9.
  • a cutting lever 11 in the housing 10, which can be pivoted about a pivot point 12 fixed to the housing.
  • this cutting lever - opposite the stop 33 - has a knife 13 in the area of the band driver 17.
  • a compression spring 27 acts on the free end thereof, which abuts against a stop 29 fixed to the housing.
  • a trigger lever 14 is located within the housing 10 and can be rotated about a pivot point 15 fixed to the housing.
  • This trigger lever 14 has a fulcrum 18 at which a pivotable cam element 16 in the form of a deflection lever 19 is arranged.
  • the sliding carriage 9 is connected to the trigger 14 via this fulcrum 18.
  • This deflection lever 17 is mounted in a pivot point 32 in the sliding carriage 9 and has a free arm on which a tension spring 21 engages.
  • This tension spring 21 is supported on a guide carriage 23 which is slidably mounted in the sliding carriage 9.
  • the guide carriage 23 works together with a threaded pin of an adjusting screw 24 which can be rotated within a bearing point 25 of the sliding carriage 9.
  • this adjusting screw 24 for example a knurled screw, is rotated, the guide carriage 23 moves over the cooperating threads, as a result of which the tension spring 21 can be set to an increased or reduced tension and thus the pressure of the counter profile 22 against the support roller 20 can be regulated.
  • the sliding carriage 9 has a curve guide 26 on the underside in the region of the support roller 20. This curve guide 26 is such that the support roller 20 of the deflection lever 19 can slide thereon and is guided onto the top of the cutting lever 11.
  • the housing 10 has a handle 28 opposite the trigger 14.
  • the device 1 works as follows: 3, the front end of the band element 3 is inserted into the mouth, to the extent that, according to FIG. 2, the transverse profile 39 of the band element 3 lies in the profile region 34 of the band driver 7.
  • This band driver 7 has on both sides of the profile region 34 two support regions 35 and 36 which act on the longitudinal webs 38 and 38 'of the band element 3 under the action of the spring 37.
  • a plate 40 which, for example, can be slightly curved.
  • the distance a of the support regions 35 and 36 to the plate 40 is preferably smaller than the diameter d of the longitudinal webs 38 and 38 'of the band element 3.
  • the trigger lever 14 is moved in the direction of the arrow against the grip shell 28.
  • the band driver 7 pivots counter-clockwise against the action of the torsion spring 37 until the band driver 7 emerges from the engagement area of the transverse profile 39 of the band element 3.
  • the sliding carriage 9 moves to the right as a result of the pivot point 18.
  • the trigger 14 is released. He pivots counterclockwise about its pivot point 15 until the belt driver 7 rests against the stop 33 and again with its profile 39 in the transverse profile 39 of the Band element 3 engages. This allows the above-mentioned process to be repeated, so that the band element 3 is gradually shifted to the right with the movement of the trigger element 14 and wraps around the tubular body 2 increasingly tightly.
  • the head part 4 lies firmly in the region of the mouth of the device 1 according to the invention. If the trigger lever 14 is still rotated clockwise about the fulcrum 15, the roller 20 of the deflection lever 19 slides out of the counter profile 22 of the release lever 17, so that the sliding carriage 9 moves briefly under the action of the spring 30 from the right to the left and thus the tensioning process is now followed by a short relaxation process of the band element 3.
  • the tension spring 21 can be adjusted accordingly, so that a tightening force setting is ensured in a simple manner, ie the system pressure can be the support roller 20 can be regulated in the counter profile 22 of the release lever 17 rotatable about the pivot point 32.
  • the special design of the device 1 according to the invention results in a considerable improvement in the automatic, manual clamping with the aid of a band element.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

The invention relates to a device for tensioning at least one profiled strap element 3, looped around at least one tubular body 2, in a head part 4 which has, within a passage orifice 5, a resilient locking element cooperating with the profiled strap element. At the same time, a spring-loaded strap driver 7 which is pivotable about a centre of rotation 8 is provided. This strap driver 7 is mounted within a housing 10 in a spring-loaded sliding carriage 9. Furthermore, a cutting lever 11, pivotable about a centre of rotation 12 fixed relative to the housing and having a cutter 13, is provided in the region of the strap driver. A trigger lever 14 is pivotable about a centre of rotation 15 fixed relative to the housing, the sliding carriage 9 and the cutting lever 11 being actuable via this trigger lever. According to the invention, the trigger lever 14 is supported via a pivotable cam element 16 on a spring-loaded release lever 17 mounted rotatably in the sliding carriage 9, the cutting lever 11 being actuable via the pivotable cam element 16. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Spannen mindestens eines um mindestens einen rohrförmigen Körper geschlungen profilierten Bandelements in einem Kopfteil, welches innerhalb einer Durchgangsöffnung ein mit dem profilierten Bandelement zusammenwirkendes federndes Verriegelungselement aufweist.The invention relates to a device for tensioning at least one band element which is wrapped around at least one tubular body and has a resilient locking element which interacts with the profiled band element within a through opening.

Als allgemeiner Stand der Technik sind bereits derartige Vorrichtungen bekannt, welche im allgemeinen mit einem federbeaufschlagten Bandmitnehmer ausgestattet sind, der um einen Drehpunkt schwenkbar in einem federbeaufschlagten Schiebeschlitten innerhalb eines Gehäuses gelagert ist. Weiterhin findet ein um einen gehäusefesten Drehpunkt schwenkbarer Schneidhebel mit einem Messer im Bereich des Bandmitnehmers Anwendung. Darüber hinaus ist ein um einen gehäusefesten Drehpunkt schwenkbarer Abzugshebel vorgesehen, über welchen der Schiebeschlitten und der Schneidhebel betätigbar sind.Devices of this type are already known as the general state of the art, which are generally equipped with a spring-loaded band driver, which is pivotably mounted about a fulcrum in a spring-loaded sliding carriage within a housing. Furthermore, a cutting lever with a knife, which can be pivoted about a pivot point fixed to the housing, is used in the area of the belt driver. In addition, a trigger lever pivotable about a pivot point fixed to the housing is provided, by means of which the sliding carriage and the cutting lever can be actuated.

Diese bekannte Vorrichtung dient dazu, ein um mindestens einen rohrförmigen Körper geschlungenes profiliertes Bandelement so zu straffen, daß sich eine sehr gute Halterung ergibt. Ist diese straffe Halterung hergestellt, so wird über das vorderseitig am Schneidhebel befestigte Messer der überstehende Bereich des profilierten Bandelements abgeschnitten.This known device is used to tighten a profiled band element wrapped around at least one tubular body in such a way that a very good mounting results. Once this tight bracket has been made, the protruding area of the profiled band element is cut off using the knife attached to the front of the cutting lever.

Nachteilig ist bei bekannten Konstruktionen, daß das Abschneiden des überstehenden profilierten Bandelements unter Spannung erfolgt, so daß das Kunststoffmaterial, aus welchem im allgemeinen das profilierte Bandelement besteht, zurückfedern kann. Dadurch ist eine einwandfreie und straffe Halterung des umschlungenen rohrförmigen Körpers nicht mehr gewährleistet, wobei zudem das profilierte Bandelement infolge der vorhandenen Spannung beim Abschneiden aus dem federnden Verriegelungselement herausgerissen werden kann. Das Abschneiden des überstehenden Bandelements unter Spannung weist daher in der Praxis erhebliche Nachteile auf.A disadvantage of known constructions is that the protruding profiled band element is cut off under tension, so that the plastic material from which the profiled band element generally consists can spring back. This ensures that the wrapped tubular body is no longer properly and tightly secured, and in addition the profiled band element can be torn out of the resilient locking element due to the tension present during cutting. Cutting off the excess tape element under tension therefore has considerable disadvantages in practice.

Der vorliegenden Erfindung liegt damit die Aufgabe zugrunde, eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 1 zu schaffen, welche auf einfache Weise gewährleistet, daß das Abschneiden des überstehenden Bandelements im entspannten Zustand erfolgt.The present invention is therefore based on the object to provide a device according to the preamble of claim 1, which ensures in a simple manner that the cutting off of the protruding band element takes place in the relaxed state.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß sich der Abzugshebel über ein schwenkbares Kurvenelement an einem federbeaufschlagten, im Schiebeschlitten drehbar gelagerten Auslösehebel abstützt und daß über das schwenkbare Kurvenelement der Schneidehebel betätigbar ist. Hierdurch ergibt sich der Vorteil, daß mit Hilfe der erfindungsgemäßen Vorrichtung folgende Verfahrensschritte ablaufen:This object is achieved in that the trigger lever is supported via a pivotable cam element on a spring-loaded trigger lever rotatably mounted in the sliding carriage and that the cutting lever can be actuated via the pivotable cam element. This has the advantage that the following method steps take place with the aid of the device according to the invention:

Spannen des bandförmigen Elements bis zur festen Anlage an mindestens einem rohrförmigen Körper - Entspannen des Bandelements - Abschneiden des überstehenden Bandelements. Dadurch wird vorteilhafterweise eine Vermeidung eines unerwünschten Schlages beim Abschneiden sowie eine sichere Lagerung des Bandelements innerhalb des Kopfteils bewirkt.Tensioning the band-shaped element until it rests firmly on at least one tubular body - relaxing the band element - cutting off the protruding band element. This advantageously avoids an undesirable impact when cutting and a secure storage of the band element within the head part.

In weiterer Ausgestaltung der Erfindung kann das schwenkbare Kurvenelement als in einem Drehpunkt des Abzughebels gelagerter Auslenkhebel ausgebildet sein, welcher am freien Ende als Abstützung mindestens eine Stützrolle aufweist. Diese Stützrolle kann gegen die Wirkung einer Feder in einem Gegenprofil des Auslösehebels eingelagert und aus diesen bei Betätigung des Abzughebels herausdrückbar sein. Hierdurch wird gewährleistet, daß nach Abschluß des Spannens kurzzeitig ein Entspannungsvorgang eintritt, an dessen Ende der Schneidvorgang durchgeführt wird.In a further embodiment of the invention, the pivotable cam element can be designed as a deflection lever mounted in a pivot point of the trigger lever, which has at least one support roller as a support at the free end. This support roller can be stored against the action of a spring in a counter profile of the release lever and can be pressed out of it when the trigger lever is actuated. This ensures that a relaxation process occurs briefly after completion of the tensioning, at the end of which the cutting process is carried out.

Die Feder kann in weiterer Ausgestaltung der Erfindung als Zugfeder ausgebildet und einerseits am Auslösehebel und andererseits am Schiebeschlitten befestigt sein. Um eine Einstellung der Anzugskraft durchzuführen, kann die Zugfeder einstellbar ausgebildet sein, z.B. über einen Führungsschlitten am Schiebeschlitten angeordnet sein. Der Führungsschlitten ist mit einer im Schiebeschlitten drehbar gelagerten Einstellschraube verbunden. Mit Hilfe dieser Schraube kann auf einfache Weise die Spannung der Zugfeder eingestellt werden, was sich wiederum auf den Auslösehebel überträgt.In a further embodiment of the invention, the spring can be designed as a tension spring and can be fastened on the one hand to the release lever and on the other hand to the sliding carriage. To an attitude to carry out the tightening force, the tension spring can be designed to be adjustable, for example can be arranged on the sliding carriage via a guide slide. The guide carriage is connected to an adjusting screw which is rotatably mounted in the sliding carriage. With the help of this screw, the tension of the tension spring can be easily adjusted, which in turn is transferred to the release lever.

Nach einem anderem Merkmal der Erfindung kann der Schiebeschlitten im Bereich des freien Endes des Auslenkhebels zu dessen Auslenkung eine Kurvenführung aufweisen, über welche der Auslenkhebel den Schneidhebel beaufschlagt. Über die durch die Kurvenführung des Schiebeschlittens gelenkte Stützrolle kann hierbei der Schneidhebel oberseitig gegen Wirkung einer Feder beaufschlagt werden. Damit wird unmittelbar nach dem Entspannungsvorgang das überstehende Ende des Bandelements abgeschnitten.According to another feature of the invention, the sliding carriage in the region of the free end of the deflection lever can have a curve for deflecting it, via which the deflection lever acts on the cutting lever. The cutting lever can be acted on the upper side against the action of a spring via the support roller which is guided by the curve guidance of the sliding carriage. The protruding end of the band element is thus cut off immediately after the relaxation process.

Um das Bandelement möglichst schonend in die erfindungsgemäße Vorrichtung einzuziehen, kann der federbeaufschlagte Bandmitnehmer einen mittleren, auf das Querprofil des profilierten Bandelements abgestellten Profilbereich und seitliche glatte Stützbereiche aufweisen. Damit wird sichergestellt, daß die Längsstege des profilierten Bandelements nicht in den Einflußbereich des Bandmitnehmers gelangen.In order to pull the band element as gently as possible into the device according to the invention, the spring-loaded band driver can have a central profile area, which is placed on the transverse profile of the profiled band element, and lateral smooth support areas. This ensures that the longitudinal webs of the profiled band element do not come into the area of influence of the band driver.

Um die Einzugswirkung mit Hilfe des Bandmitnehmers zu verbessern, kann unterhalb des Bandelements eine gehäusefeste Platte angeordnet sein, wobei der Abstand zwischen den Stützbereichen und der Platte kleiner als der Durchmesser der jeweiligen Längsstege des profilierten Bandelements sein kann. Die gehäusefeste Platte kann oberseitig gewölbt ausgebildet sein.In order to improve the pull-in effect with the aid of the band driver, a plate fixed to the housing can be arranged below the band element, the distance between the support areas and the plate being smaller than the diameter of the respective longitudinal webs of the profiled band element. The plate fixed to the housing can be curved on the upper side.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben. In der Zeichnung zeigen:

Fig. 1
eine schematische Seitenansicht der erfindungsgemäßen Vorrichtung;
Fig. 2
eine Vorderansicht des Bandmitnehmers mit geschnittenen Längsstegen des profilierten Bandelements;
Fig. 3
den vorderen Bereich der erfindungsgemäßen Vorrichtung mit schematisch dargestelltem Bandelement.
The invention is described below with reference to an embodiment shown in the drawing. The drawing shows:
Fig. 1
a schematic side view of the device according to the invention;
Fig. 2
a front view of the band driver with cut longitudinal webs of the profiled band element;
Fig. 3
the front area of the device according to the invention with a schematically illustrated band element.

Nach Fig. 1 und 3 dient die erfindungsgemäße Vorrichtung 1 zum Spannen mindestens eines Bandelements 3, welches um mindestens einen rohrförmigen Körper 2 geschlungen ist. Hierbei weist das Bandelement 3 einen Kopfteil 4 auf, welcher innerhalb einer Durchgangsöffnung 5 ein mit dem profilierten Bandelement 3 zusammenwirkendes, federndes Verriegelungselement 6 aufweist. Durch Anlage des Kopfteils 4 an der Stirnseite der erfindungsgemäßen Vorrichtung 1 und durch Förderung des profilierten Bandelements 3 in Pfeilrichtung I erfolgt ein Spannen dieses profilierten Bandelements 3.1 and 3, the device 1 according to the invention is used for tensioning at least one band element 3 which is wrapped around at least one tubular body 2. Here, the band element 3 has a head part 4, which has a resilient locking element 6 which interacts with the profiled band element 3 within a through opening 5. By tensioning the head part 4 on the end face of the device 1 according to the invention and by conveying the profiled band element 3 in the direction of arrow I, this profiled band element 3 is tensioned.

Nach Fig. 1 weist die Vorrichtung 1 einen Bandmitnehmer 7 auf, welcher im Mündungsbereich 7 angeordnet ist. Dieser Bandmitnehmer 7 ist - um einen Drehpunkt 8 schwenkbar - in einem Schiebeschlitten 9 gelagert.1, the device 1 has a belt driver 7, which is arranged in the mouth region 7. This belt driver 7 is - pivotable about a pivot point 8 - mounted in a sliding carriage 9.

Nach Fig. 2 wird der Bandmitnehmer 7 von einer Torsionsfeder 37 beaufschlagt, wobei in der in Fig. 1 dargestellten Position diese Torsionsfeder 37 bewirkt, daß der Bandmitnehmer 8 gegen einen Anschlag 33 im Mündungsbereich der Vorrichtung 1 anliegt.2, the band driver 7 is acted upon by a torsion spring 37, wherein in the position shown in FIG. 1 this torsion spring 37 causes the band driver 8 to bear against a stop 33 in the mouth region of the device 1.

Der Schiebeschlitten 9 ist innerhalb eines Gehäuses 10 gelagert und wird rückseitig von einer Druckfeder 30 beaufschlagt, welche sich einerseits am Gehäuse 10 abstützt und andererseits eine Abstützung im Bereich einer Anlage 31 des Schiebeschlittens 9 erfährt. Durch die Druckfeder 30 wird der Schiebeschlitten 9 zusammen mit dem Bandmitnehmer 7 gegen den Mündungsbereich der Vorrichtung 1 gedrückt.The sliding carriage 9 is mounted within a housing 10 and is acted upon on the rear side by a compression spring 30 which is supported on the one hand on the housing 10 and on the other hand is supported in the region of a system 31 of the sliding carriage 9. By the compression spring 30, the sliding carriage 9 together with the Band driver 7 pressed against the mouth area of the device 1.

Unterhalb des Schiebeschlittens 9 befindet sich im Gehäuse 10 ein Schneidhebel 11, welcher um einen gehäusefesten Drehpunkt 12 schwenkbar ist. Vorderseitig weist dieser Schneidhebel - dem Anschlag 33 gegenüberliegend - im Bereich des Bandmitnehmers 17 ein Messer 13 auf. Auf der anderen Seite des Schneidhebels 11 beaufschlagt eine Druckfeder 27 dessen freies Ende, welches gegen einen gehäusefesten Anschlag 29 anliegt.Below the sliding carriage 9 there is a cutting lever 11 in the housing 10, which can be pivoted about a pivot point 12 fixed to the housing. On the front side, this cutting lever - opposite the stop 33 - has a knife 13 in the area of the band driver 17. On the other side of the cutting lever 11, a compression spring 27 acts on the free end thereof, which abuts against a stop 29 fixed to the housing.

Innerhalb des Gehäuses 10 befindet sich ein Abzugshebel 14, welcher um einen gehäusefesten Drehpunkt 15 drehbar ist. Dieser Abzugshebel 14 weist einen Drehpunkt 18 auf, an welchem ein schwenkbares Kurvenelement 16 in Form eines Auslenkhebels 19 angeordnet ist. Über diesen Drehpunkt 18 ist der Schiebeschlitten 9 mit dem Abzugshebel 14 verbunden.A trigger lever 14 is located within the housing 10 and can be rotated about a pivot point 15 fixed to the housing. This trigger lever 14 has a fulcrum 18 at which a pivotable cam element 16 in the form of a deflection lever 19 is arranged. The sliding carriage 9 is connected to the trigger 14 via this fulcrum 18.

Am freien Ende des Auslenkhebels 19 ist mindestens eine Stützrolle 20 angeordnet, welche innerhalb eines Gegenprofils 22 eines Auslenkhebels 17 liegt. Dieser Auslenkhebel 17 ist in einem Drehpunkt 32 im Schiebeschlitten 9 gelagert und weist einen freien Arm auf, an welchem eine Zugfeder 21 angreift.At the free end of the deflection lever 19 there is at least one support roller 20 which lies within a counter profile 22 of a deflection lever 17. This deflection lever 17 is mounted in a pivot point 32 in the sliding carriage 9 and has a free arm on which a tension spring 21 engages.

Diese Zugfeder 21 stützt sich an einem Führungsschlitten 23 ab, welcher verschiebbar in dem Schiebeschlitten 9 gelagert ist. Der Führungsschlitten 23 arbeitet mit einem Gewindezapfen einer Einstellschraube 24 zusammen, welche innerhalb einer Lagerstelle 25 des Schiebeschlittens 9 drehbar ist.This tension spring 21 is supported on a guide carriage 23 which is slidably mounted in the sliding carriage 9. The guide carriage 23 works together with a threaded pin of an adjusting screw 24 which can be rotated within a bearing point 25 of the sliding carriage 9.

Wird diese Einstellschraube 24, z.B. eine Rändelschraube, gedreht, so verschiebt sich der Führungsschlitten 23 über die zusammenwirkenden Gewinde, wodurch die Zugfeder 21 auf eine erhöhte oder verminderte Spannung eingestellt werden kann und sich damit der Andruck des Gegenprofils 22 gegen die Stützrolle 20 regulieren läßt.If this adjusting screw 24, for example a knurled screw, is rotated, the guide carriage 23 moves over the cooperating threads, as a result of which the tension spring 21 can be set to an increased or reduced tension and thus the pressure of the counter profile 22 against the support roller 20 can be regulated.

Der Schiebeschlitten 9 weist im Bereich der Stützrolle 20 unterseitig eine Kurvenführung 26 auf. Diese Kurvenführung 26 ist so beschaffen, daß die Stützrolle 20 des Auslenkhebels 19 daran gleiten kann und auf die Oberseite des Schneidhebels 11 geführt wird.The sliding carriage 9 has a curve guide 26 on the underside in the region of the support roller 20. This curve guide 26 is such that the support roller 20 of the deflection lever 19 can slide thereon and is guided onto the top of the cutting lever 11.

Das Gehäuse 10 weist, dem Abzugshebel 14 gegenüberliegend, eine Griffschale 28 auf.The housing 10 has a handle 28 opposite the trigger 14.

Die erfindungsgemäße Vorrichtung 1 arbeitet wie folgt:
Zunächst wird nach Fig. 3 das vordere Ende des Bandelements 3 in die Mündung eingeführt, und zwar soweit bis nach Fig. 2 das Querprofil 39 des Bandelements 3 im Profilbereich 34 des Bandmitnehmers 7 liegt. Dieser Bandmitnehmer 7 weist beidseitig des Profilbereichs 34 zwei Stützbereiche 35 und 36 auf, welche unter Wirkung der Feder 37 die Längsstege 38 und 38' des Bandelements 3 beaufschlagen.The device 1 according to the invention works as follows:
3, the front end of the band element 3 is inserted into the mouth, to the extent that, according to FIG. 2, the transverse profile 39 of the band element 3 lies in the profile region 34 of the band driver 7. This band driver 7 has on both sides of the profile region 34 two support regions 35 and 36 which act on the longitudinal webs 38 and 38 'of the band element 3 under the action of the spring 37.

Unterhalb des Bandmitnehmers 7 befindet sich eine Platte 40, welche beispielsweise leicht gewölbt ausgebildet sein kann. Hierbei ist der Abstand a der Stützbereiche 35 und 36 zu der Platte 40 vorzugsweise kleiner als der Durchmesser d der Längsstege 38 und 38' des Bandelements 3.Below the belt driver 7 there is a plate 40 which, for example, can be slightly curved. The distance a of the support regions 35 and 36 to the plate 40 is preferably smaller than the diameter d of the longitudinal webs 38 and 38 'of the band element 3.

Nachdem sich der Profilbereich 34 des Bandmitnehmers 7 in den entsprechenden Querprofilen 39 des Bandelements 3 eingelagert hat, wird der Abzugshebel 14 in Pfeilrichtung gegen die Griffschale 28 bewegt. Hierdurch schwenkt der Bandmitnehmer 7 gegen Wirkung der Torsionsfeder 37 im Gegenuhrzeigersinn, und zwar solange, bis der Bandmitnehmer 7 aus dem Eingriffsbereich des Querprofils 39 des Bandelements 3 heraustritt. Gleichzeitig mit dieser vorgenannten Bewegung bewegt sich der Schiebeschlitten 9 infolge des Drehpunktes 18 nach rechts. Ist die Schiebebewegung des Schiebeschlittens 9 nach rechts gegen Wirkung der Feder 30 beendet, wird der Abzugshebel 14 losgelassen. Er schwenkt damit im Gegenuhrzeigersinn um seinen Drehpunkt 15, bis der Bandmitnehmer 7 wieder am Anschlag 33 anliegt und erneut mit seinem Profil 39 in das Querprofil 39 des Bandelements 3 eingreift. Damit läßt sich der vorgenannte Vorgang wiederholen, so daß nach und nach das Bandelement 3 mit Hilfe der Bewegung des Abzugselements 14 nach rechts verschoben wird und den rohrförmigen Körper 2 zunehmend straffer umschlingt.After the profile region 34 of the band driver 7 has been embedded in the corresponding transverse profiles 39 of the band element 3, the trigger lever 14 is moved in the direction of the arrow against the grip shell 28. As a result, the band driver 7 pivots counter-clockwise against the action of the torsion spring 37 until the band driver 7 emerges from the engagement area of the transverse profile 39 of the band element 3. Simultaneously with this aforementioned movement, the sliding carriage 9 moves to the right as a result of the pivot point 18. When the sliding movement of the sliding carriage 9 to the right against the action of the spring 30 has ended, the trigger 14 is released. He pivots counterclockwise about its pivot point 15 until the belt driver 7 rests against the stop 33 and again with its profile 39 in the transverse profile 39 of the Band element 3 engages. This allows the above-mentioned process to be repeated, so that the band element 3 is gradually shifted to the right with the movement of the trigger element 14 and wraps around the tubular body 2 increasingly tightly.

Ist der Vorgang des Spannens des Bandelements 3 beendet, so liegt das Kopfteil 4 fest im Bereich der Mündung der erfindungsgemäßen Vorrichtung 1 an. Wird nun trotzdem der Abzugshebel 14 im Uhrzeigersinn weiter um den Drehpunkt 15 gedreht, so gleitet die Rolle 20 des Auslenkhebels 19 aus dem Gegenprofil 22 des Auslösehebels 17, so daß der Schiebeschlitten 9 kurzzeitig unter Wirkung der Feder 30 sich von rechts nach links bewegt und damit dem Spannvorgang nunmehr ein kurzer Entspannungsvorgang des Bandelements 3 folgt.If the process of tensioning the band element 3 has ended, the head part 4 lies firmly in the region of the mouth of the device 1 according to the invention. If the trigger lever 14 is still rotated clockwise about the fulcrum 15, the roller 20 of the deflection lever 19 slides out of the counter profile 22 of the release lever 17, so that the sliding carriage 9 moves briefly under the action of the spring 30 from the right to the left and thus the tensioning process is now followed by a short relaxation process of the band element 3.

Im Weiterverlauf der Drehbewegung des Abzughebels 14 um den Drehpunkt 15 gleitet die Stützrolle 20 an der Kurvenführung 26 des Schiebeschlittens 9 nach unten und beaufschlagt den Schneidhebel 11, wodurch dieser um den Drehpunkt 12 im Uhrzeigersinn gedreht wird.As the rotary movement of the trigger lever 14 continues around the pivot point 15, the support roller 20 slides downward on the cam guide 26 of the sliding carriage 9 and acts on the cutting lever 11, as a result of which the latter is rotated clockwise about the pivot point 12.

Durch diese Drehung tritt das Messer 13 im vorderen Bereich des Schneidhebels 11 in Aktion und schneidet das kurzzeitig im entspannten Zustand vorliegende Bandelement 3 ab, so daß der Vorgang des Spannens, Entspannens und Schneidens damit beendet ist.As a result of this rotation, the knife 13 comes into action in the front region of the cutting lever 11 and cuts off the band element 3, which is briefly in the relaxed state, so that the process of tensioning, relaxing and cutting is thus ended.

Die vorgenannten Abläufe bezüglich der Entspannung und des Schneidens erfolgen in einer sehr kurzen Zeitphase, wobei jedoch in jedem Fall durch die Gestaltung der Stützrolle 20 und des Gegenprofils 22 sowie der Kurvenführung 26 sichergestellt ist, daß ein Abschneiden des überstehenden Bandteils 3' nach Fig. 3 nur im entspannten Zustand erfolgt.The aforementioned processes with regard to relaxation and cutting take place in a very short time phase, but in any case it is ensured by the design of the support roller 20 and the counter profile 22 and the curve guide 26 that cutting off the protruding band part 3 'according to FIG. 3 only in a relaxed state.

Durch Einstellung der Rändelschraube 24 kann die Zugfeder 21 entsprechend eingestellt werden, so daß auf einfache Weise eine Anzugskrafteinstellung gewährleistet ist, d.h. es kann der Anlagedruck der Stützrolle 20 in dem Gegenprofil 22 des um den Drehpunkt 32 drehbaren Auslösehebels 17 reguliert werden.By adjusting the knurled screw 24, the tension spring 21 can be adjusted accordingly, so that a tightening force setting is ensured in a simple manner, ie the system pressure can be the support roller 20 can be regulated in the counter profile 22 of the release lever 17 rotatable about the pivot point 32.

Durch die spezielle Gestaltung der erfindungsgemäßen Vorrichtung 1 ergibt sich eine erhebliche Verbesserung im automatischen, manuellen Festspannen mit Hilfe eines Bandelements.The special design of the device 1 according to the invention results in a considerable improvement in the automatic, manual clamping with the aid of a band element.

Claims (11)

Vorrichtung zum Spannen mindestens eines um mindestens einen rohrförmigen Körper geschlungenen, profilierten Bandelements in einem Kopfteil, welches innerhalb einer Durchgangsöffnung ein mit dem profilierten Bandelement zusammenwirkendes federndes Verriegelungselement aufweist, mit einem federbeaufschlagten Bandmitnehmer, welcher um einen Drehpunkt schwenkbar in einem federbeaufschlagten schiebeschlitten innerhalb eines Gehäuses gelagert ist,
mit einem um einen gehäusefesten Drehpunkt schwenkbaren Schneidhebel, mit einem Messer im Bereich des Bandmitnehmers und mit einem um einen gehäusefesten Drehpunkt schwenkbaren Abzugshebel, über welchen der Schiebeschlitten und der Schneidhebel betätigbar sind,
dadurch gekennzeichnet,
daß sich der Abzugshebel (14) über ein schwenkbares Kurvenelement (16) an einem federbeaufschlagten, im Schiebeschlitten (9) drehbar gelagerten Auslösehebel (17) abstützt und
daß über das schwenkbare Kurvenelement der Schneidhebel (11) betätigbar ist.Device for tensioning at least one profiled band element wrapped around at least one tubular body in a head part, which has a resilient locking element cooperating with the profiled band element within a through opening, with a spring-loaded band driver which is pivotally mounted about a pivot point in a spring-loaded sliding carriage within a housing is
with a cutting lever which can be pivoted about a pivot point fixed to the housing, with a knife in the area of the belt driver and with a trigger lever which can be pivoted about a pivot point which is fixed with the housing and by means of which the sliding carriage and the cutting lever can be actuated,
characterized by
that the trigger lever (14) is supported by a pivotable cam element (16) on a spring-loaded trigger lever (17) rotatably mounted in the sliding carriage (9) and
that the cutting lever (11) can be actuated via the pivotable cam element. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das schwenkbare Kurvenelement (16) als in einem Drehpunkt (18) des Abzugshebels (14) gelagerter Auslenkhebel (19) ausgebildet ist, welcher am freien Ende als Abstützung mindestens eine Stützrolle (20) aufweist.Device according to Claim 1, characterized in that the pivotable cam element (16) is designed as a deflection lever (19) which is mounted in a pivot point (18) of the trigger lever (14) and which has at least one support roller (20) as a support at the free end. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Stützrolle (20) gegen die Wirkung einer Feder (21) in einem Gegenprofil (22) des Auslösehebels (17) eingelagert und aus diesem bei Betätigung des Abzugshebels (14) herausdrückbar ist.Apparatus according to claims 1 and 2, characterized in that the support roller (20) is mounted against the action of a spring (21) in a counter profile (22) of the release lever (17) and can be pressed out of it when the trigger lever (14) is actuated. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Feder (21) als Zugfeder ausgebildet und einerseits am Auslösehebel (17) und andererseits am Schiebeschlitten (9) befestigt ist.Device according to claim 3, characterized in that the spring (21) is designed as a tension spring and is fastened on the one hand to the release lever (17) and on the other hand to the sliding carriage (9). Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Zugfeder (21) einstellbar ist.Device according to claim 4, characterized in that the tension spring (21) is adjustable. Vorrichtung nach Anspruch 4 und 5, dadurch gekennzeichnet, daß die Zugfeder (21) über einen Führungsschlitten (23) am Schiebeschlitten (9) angeordnet ist, wobei der Führungsschlitten (23) mit einer am Schiebeschlitten (9) drehbar gelagerten Einstellschraube (24) verbunden ist.Device according to Claims 4 and 5, characterized in that the tension spring (21) is arranged on the sliding carriage (9) via a guide carriage (23), the guide carriage (23) being connected to an adjusting screw (24) rotatably mounted on the sliding carriage (9) is. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schiebeschlitten (9) im Bereich des freien Endes des Auslenkhebels (19) zu dessen Auslenkung eine Kurvenführung (26) aufweist, über welche der Auslenkhebel (19) den Schneidhebel (11) beaufschlagt.Device according to one of the preceding claims, characterized in that the sliding carriage (9) in the region of the free end of the deflection lever (19) has a curve guide (26) for deflecting it, via which the deflection lever (19) acts on the cutting lever (11). Vorrichtung nach Anspruch 2 und 7, dadurch gekennzeichnet, daß über die durch die Kurvenführung (26) des Schiebeschlittens (9) gelenkte Stützrolle (20) der Schneidhebel (11) oberseitig gegen Wirkung einer Feder (27) beaufschlagbar und um den gehäusefesten Drehpunkt (12) drehbar ist.Apparatus according to claims 2 and 7, characterized in that the cutting lever (11) can be acted upon on the upper side against the action of a spring (27) and about the pivot point (12) fixed to the housing via the support roller (20) guided by the curve guide (26) of the sliding carriage (9) ) is rotatable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der federbeaufschlagte Bandmitnehmer (7) an einem gehäusefesten Anschlag (33) anliegt und in einen mittleren, auf das Querprofil (39) des profilierten Bandelements (3) abgestellten Profilbereich (34) und seitliche glatte Stützbereiche (35, 36) aufweist.Apparatus according to claim 1, characterized in that the spring-loaded band driver (7) bears against a stop (33) fixed to the housing and in a central one, placed on the transverse profile (39) of the profiled band element (3) Has profile area (34) and lateral smooth support areas (35, 36). Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß unterhalb des Bandelements (7) eine gehäusefeste Platte (40) angeordnet ist, wobei der Abstand (a) zwischen den Stützbereichen (35, 36) und der Platte (40) kleiner ist als der Durchmesser (d) der jeweiligen Längsstege (38, 38') des profilierten Bandelements (3).Apparatus according to claim 9, characterized in that a housing-fixed plate (40) is arranged below the band element (7), the distance (a) between the support regions (35, 36) and the plate (40) being smaller than the diameter ( d) the respective longitudinal webs (38, 38 ') of the profiled band element (3). Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die gehäusefeste Platte (40) oberseitig gewölbt ausgebildet ist.Device according to claim 10, characterized in that the plate (40) fixed to the housing is curved on the upper side.
EP93110131A 1992-07-27 1993-06-24 Device for tensioning at least one profiled strap around at least one tubular body Expired - Lifetime EP0581020B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4224826A DE4224826C2 (en) 1992-07-27 1992-07-27 Device for tensioning at least one profiled band element wrapped around at least one tubular body
DE4224826 1992-07-27

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EP0581020A1 true EP0581020A1 (en) 1994-02-02
EP0581020B1 EP0581020B1 (en) 1996-09-25

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EP93110131A Expired - Lifetime EP0581020B1 (en) 1992-07-27 1993-06-24 Device for tensioning at least one profiled strap around at least one tubular body

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US (1) US5392822A (en)
EP (1) EP0581020B1 (en)
JP (1) JPH06239312A (en)
KR (1) KR940005466A (en)
DE (2) DE4224826C2 (en)
ES (1) ES2092189T3 (en)

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Also Published As

Publication number Publication date
DE4224826A1 (en) 1994-02-03
JPH06239312A (en) 1994-08-30
DE59303946D1 (en) 1996-10-31
EP0581020B1 (en) 1996-09-25
US5392822A (en) 1995-02-28
KR940005466A (en) 1994-03-21
ES2092189T3 (en) 1996-11-16
DE4224826C2 (en) 1995-09-07

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