EP0744342B1 - Tensioning and fixing device for tying an object with a tape - Google Patents

Tensioning and fixing device for tying an object with a tape Download PDF

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Publication number
EP0744342B1
EP0744342B1 EP96108153A EP96108153A EP0744342B1 EP 0744342 B1 EP0744342 B1 EP 0744342B1 EP 96108153 A EP96108153 A EP 96108153A EP 96108153 A EP96108153 A EP 96108153A EP 0744342 B1 EP0744342 B1 EP 0744342B1
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EP
European Patent Office
Prior art keywords
tensioning
tensioning wheel
wheel
drive motor
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96108153A
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German (de)
French (fr)
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EP0744342A1 (en
Inventor
Nikolaus Stamm
Flavio Finzo
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.)
Signode Switzerland GmbH
Original Assignee
Orgapack GmbH
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Publication date
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Publication of EP0744342A1 publication Critical patent/EP0744342A1/en
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    • 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
    • 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
    • B65B13/185—Details of tools
    • B65B13/187—Motor means
    • B65B13/188—Motor means pneumatic or hydraulic

Definitions

  • the invention relates to a tensioning and closing device for strapping an object with a strap according to the preamble of claim 1.
  • the device is the drive motor directly with the tension wheel connected.
  • German patent specification DE 32 29 870 C2 is a strap strapping device described in which a single drive motor for the alternative drive of the tensioning wheel or the closing device which drive motor is provided together with a reduction gear in a gear housing as Unit can be placed on the housing of the strapping device and can be connected to it, so that the drive device can be exchanged.
  • the drive motor and the reduction gear can be parallel to each other and also arranged parallel to the tension shaft and with each other via gears be connected. They can also be arranged coaxially to one another and via one Angular gear be connected to the tension wheel.
  • the invention has for its object a generic To create tensioning and closing device, in which the drive of the tensioning wheel is simple and one has high efficiency.
  • the tensioning wheel an inner recess
  • the gearbox at least is partially housed in the recess of the tensioning wheel. This saves a lot of space.
  • the Device with a separate drive motor for the closing device Mistake. Every motor can do the best be adapted to the respective requirements.
  • Both drive motors can be powered by a battery.
  • the height Efficiency of the tensioning wheel drive according to the invention enables economical battery operation.
  • FIG. 1 shows the tensioning and closing device according to the invention schematically in a perspective view reproduced. It comprises a housing 1 with a Base plate 2 on which a clamping unit 3 and a not shown known sealing unit are attached.
  • the device with the base plate 2 on one with a thermoplastic plastic tape, for example object to be strapped.
  • the tape is around put the object around, and two of it to be locked Ends are held by the clamping unit 3.
  • the sealing unit is suitable in a manner known per se the two overlapping ends after tensioning the tape to connect, for example by friction welding. If the tape is unwound from a supply roll, one Subordinate separation device, not shown, arranged downstream of the clamping unit 3 be to separate the required band section from the Supply roll.
  • the clamping unit 3 has a fixed tooth plate 4 for laying on the lower end of the tape to be closed.
  • a movable one Tension shoe 5 is serrated on the underside for cooperation with the tooth plate 4.
  • the top of the tension shoe 5 has a support surface 10 which is suitable for placing the upper end of the tape to be closed.
  • a pivotable rocker 6 is provided with a serrated, rotatable about a clamping axis 7, drivable Tensioning wheel 8 for pressing the upper end of the band against the tensioning shoe 5 and for grasping the upper end when rotating of the tensioning wheel 8, so that the band in the tensioning direction 9 in is tensioned in a known manner.
  • the axis of rotation of the pivotable rocker 6 is in the embodiment shown about between the tension shoe 5 and the Base plate 2 and in the clamping direction 9 behind the support surface 10 of the tension shoe 5 arranged. This allows the rocker 6 with the tensioning wheel 8 without great effort in any position of use the device, especially when the belt is tensioned again be lifted off.
  • this arrangement of the rocker 6 is not essential for the invention.
  • the rocker 6 with the tensioning wheel 8 is actuated by a Lever 11 pivotable. If in the tension direction 9 to the rear is pivoted, the clamping shoe 5 can be lifted off the tooth plate 4, so that the lower end of the tape to be closed inserted between the tooth plate 4 and the clamping shoe 5 can be. Then the lower end of the band is pinched, and the tensioning wheel 8 is held at a distance from the tensioning shoe 5, so that the upper end of the tape to be closed between the tensioning shoe 5 and the tensioning wheel 8 can be inserted. When the rocker 6 is pivoted forward in the clamping direction 9 is, the tensioning wheel 8 against the bearing surface of the tensioning shoe 5 pressed and clamps the upper end of the tape so that by rotating the tensioning wheel 8, the tensioning process is carried out can be.
  • the drive of the tensioning wheel 8 for tensioning the band, if that Tensioning wheel 8 rests on tensioning shoe 5 is carried out by means of a Motor 12, which is arranged coaxially with the tensioning wheel 8 and via a coaxially arranged with the tensioning wheel 8, known transmission, for example a planetary gear, is connected to the tensioning wheel 8.
  • the speed of the Drive motor 12 is powered by the planetary gear supported coaxially with the clamping axis 7 under the rocker hood 13 is reduced to the desired level.
  • This arrangement enables a very compact design and a high overall efficiency of the tension drive. This is with a clamping unit with battery operation essential.
  • Both the closing unit and the clamping unit 3 are motor-driven, the drive motor 12 of the Clamping device and also the motor of the closing device can be powered by a battery.
  • an electric motor can be used as the drive motor 12 or an air motor can be used.
  • a brushless DC motor selected with the Direct current of the battery can be operated.
  • the torque the drive motor 12 of the tensioning wheel 8 is adjustable, so that appropriate for different objects to be strapped Band tension ranges can be set.
  • FIG. 2 shows a sectional view of the inventive Contraption.
  • the drive motor 12 is, for example, a brushless one DC motor, which is coaxial with the tensioning wheel 8 and is arranged with the transmission.
  • the gearbox is in the shown embodiment a known, two-stage Planetary gear.
  • the motor pinion 14 of the drive motor 12 works with the planetary gear 15 of the first reduction stage together.
  • the planet gears 15 of the first stage are on the planet gear carrier 16 stored the first stage.
  • the speed of the drive motor 12 continues to increase the desired size is reduced and the tensioning wheel 8 is driven.
  • the tensioning wheel 8 advantageously has an inner recess, and the planetary gear is partially space-saving in this Recess housed.
  • the tensioning wheel 8 is for example cylindrical or ring-shaped or as a cylindrical Ring formed, the inside is serrated is.
  • the rocker 6 is closed by means of a cover 20.
  • the device is equipped with a known, not shown, separate drive motor for the closing device Mistake. Therefore, each engine can optimally match the respective Requirements are adjusted. Both drive motors are by means of a single, also known per se and not shown batteries can be fed. The rational battery operation is due to the high efficiency of the tensioning wheel drive according to the invention enables.
  • FIG. 3 is an exploded perspective view of the Tension drive of the device reproduced.
  • the planet gears 15 and the planet carrier 16 form the first reduction stage.
  • the planet carrier 17 and the planet gears 19 form the second reduction stage.
  • you can too another gear can be used, for example a harmonic Transmission ("harmonic drive").

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

The clamping unit (3) has a pivot mounted clamping shoe (5) and a clamping wheel fixed to a pivoting rocker arm (6) when the clamping wheel is turned. The clamping wheel is driven by an electric or compressed air motor (12) coaxial with the clamping wheel and connected to the clamping wheel by a planetary (14-19) gear coaxial with the wheel. The clamping wheel has an inner cavity partly containing the clamping wheel in the form of a cylindrical ring with cogged inside. The motors torque is adjustable.

Description

Die Erfindung betrifft eine Spann- und Verschliessvorrichtung zum Umreifen eines Gegenstandes mit einem Band nach dem Oberbegriff des Patentanspruchs 1. Bei einer derartigen aus der US-A- 3 396 889 bekannten Vorrichtung ist der Antriebsmotor direkt mit dem Spannrad verbunden.The invention relates to a tensioning and closing device for strapping an object with a strap according to the preamble of claim 1. In such a known from US-A-3 396 889 The device is the drive motor directly with the tension wheel connected.

In der deutschen Patentschrift DE 32 29 870 C2 ist eine Bandumreifungsvorrichtung beschrieben, bei welcher ein einziger Antriebsmotor zum alternativen Antrieb des Spannrades bzw. der Verschliessvorrichtung vorgesehen ist, welcher Antriebsmotor zusammen mit einem Untersetzungsgetriebe in einem Getriebegehäuse als Baueinheit auf das Gehäuse der Bandumreifungsvorrichtung aufsetzbar und mit diesem verbindbar ist, so dass die Antriebsvorrichtung ausgetauscht werden kann. Der Antriebsmotor und das Untersetzungsgetriebe können parallel zueinander und auch parallel zur Spannwelle angeordnet und über Zahnräder miteinander verbunden sein. Sie können auch koaxial zueinander andgeordnet und über ein Winkelgetriebe mit dem Spannrad verbunden sein.In the German patent specification DE 32 29 870 C2 is a strap strapping device described in which a single drive motor for the alternative drive of the tensioning wheel or the closing device which drive motor is provided together with a reduction gear in a gear housing as Unit can be placed on the housing of the strapping device and can be connected to it, so that the drive device can be exchanged. The drive motor and the reduction gear can be parallel to each other and also arranged parallel to the tension shaft and with each other via gears be connected. They can also be arranged coaxially to one another and via one Angular gear be connected to the tension wheel.

Weitere bekannte Vorrichtungen verwenden winklig angeordnete Motoren mit Schnecken- oder Spiroïdgetrieben.Other known devices use angularly arranged Motors with worm or spiroid gears.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemässe Spann- und Verschliessvorrichtung zu schaffen, bei welcher der Antrieb des Spannrades einfach aufgebaut ist und einen hohen Wirkungsgrad hat.The invention has for its object a generic To create tensioning and closing device, in which the drive of the tensioning wheel is simple and one has high efficiency.

Die genannte Aufgabe wird bei einer gattungsgemäßen Vorrichtung erfindungsgemäss dadurch gelöst, dass der Antriebsmotor über ein ebenfalls koaxial mit dem Spannrad angeordnetes Getriebe mit dem Spannrad verbunden ist. Auf diese Weise treten wenig Reibungsverluste auf, so dass ein hoher Gesamtwirkungsgrad des Spannradantriebs erreicht wird. Zudem ist die Bauweise kompakt und einfach.The above object is achieved in a generic device solved according to the invention by that the drive motor via a gearbox also arranged coaxially with the tensioning wheel the tension wheel is connected. In this way there is little friction loss on so that a high overall efficiency of the Tensioning wheel drive is reached. The design is also compact and easy.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous developments of the invention result from the subclaims.

Gemäss einer Ausführungsform der Erfindung weist das Spannrad eine innere Aussparung auf, wobei das Getriebe mindestens teilweise in der Aussparung des Spannrades untergebracht ist. So wird viel Platz gespart.According to one embodiment of the invention, the tensioning wheel an inner recess, the gearbox at least is partially housed in the recess of the tensioning wheel. This saves a lot of space.

Gemäss einer weiteren Ausführungsform der Erfindung ist die Vorrichtung mit einem separaten Antriebsmotor für die Verschliessvorrichtung versehen. Jeder Motor kann optimal den jeweiligen Anforderungen angepasst werden.According to a further embodiment of the invention, the Device with a separate drive motor for the closing device Mistake. Every motor can do the best be adapted to the respective requirements.

Gemäss noch einer weiteren Ausführungsform der Erfindung sind beide Antriebsmotoren mittels eines Akkus speisbar. Der hohe Wirkungsgrad des erfindungsgemässen Spannradantriebs ermöglicht einen wirtschaftlichen Akku-Betrieb.According to yet another embodiment of the invention Both drive motors can be powered by a battery. The height Efficiency of the tensioning wheel drive according to the invention enables economical battery operation.

Ein Ausführungsbeispiel der Erfindung ist nachstehend anhand der Zeichnungen näher erläutert. Es zeigen

Fig. 1
eine perspektivische Ansicht der erfindungsgemässen Vorrichtung,
Fig. 2
eine Schnittansicht der Vorrichtung der Fig. 1 und
Fig. 3
eine perspektivische Explosionsansicht eines Teiles der Vorrichtung der Fig. 1.
An embodiment of the invention is explained below with reference to the drawings. Show it
Fig. 1
2 shows a perspective view of the device according to the invention,
Fig. 2
a sectional view of the device of FIGS. 1 and
Fig. 3
3 shows an exploded perspective view of a part of the device of FIG. 1.

In der Figur 1 ist die erfindungsgemässe Spann- und Verschliessvorrichtung schematisch in einer perspektivischen Ansicht wiedergegeben. Sie umfasst ein Gehäuse 1 mit einer Grundplatte 2, auf dem eine Spanneinheit 3 und eine nicht gezeigte, an sich bekannte Verschliesseinheit befestigt sind. Im Gebrauch wird die Vorrichtung mit der Grundplatte 2 auf einem mit einem beispielsweise thermoplastischen Kunststoffband zu umreifenden Gegenstand aufgesetzt. Das Band wird um den Gegenstand herumgelegt, und zwei seiner zu verschliessenden Enden werden von der Spanneinheit 3 gehalten. Die Verschliesseinheit ist dazu geeignet, in an sich bekannter Weise die beiden sich überlappenden Enden nach dem Spannen des Bandes zu verbinden, beispielsweise durch Reibschweissen. Falls das Band von einer Vorratsrolle abgewickelt wird, kann eine nicht gezeigte Trennvorrichtung der Spanneinheit 3 nachgeordnet sein zum Abtrennen des benötigten Bandabschnittes von der Vorratsrolle.FIG. 1 shows the tensioning and closing device according to the invention schematically in a perspective view reproduced. It comprises a housing 1 with a Base plate 2 on which a clamping unit 3 and a not shown known sealing unit are attached. In use, the device with the base plate 2 on one with a thermoplastic plastic tape, for example object to be strapped. The tape is around put the object around, and two of it to be locked Ends are held by the clamping unit 3. The sealing unit is suitable in a manner known per se the two overlapping ends after tensioning the tape to connect, for example by friction welding. If the tape is unwound from a supply roll, one Subordinate separation device, not shown, arranged downstream of the clamping unit 3 be to separate the required band section from the Supply roll.

Die Spanneinheit 3 weist eine feste Zahnplatte 4 zum Auflegen des unteren zu verschliessenden Endes des Bandes auf. Ein bewegbarer Spannschuh 5 ist auf der Unterseite gezahnt zum Zusammenwirken mit der Zahnplatte 4. Die Oberseite des Spannschuhs 5 weist eine Auflagefläche 10 auf, welche geeignet ist zum Auflegen des oberen zu verschliessenden Endes des Bandes. Weiterhin ist eine schwenkbare Wippe 6 vorgesehen mit einem gezahnten, um eine Spannachse 7 drehbaren, antreibbaren Spannrad 8 zum Andrücken des oberen Endes des Bandes gegen den Spannschuh 5 und zum Erfassen des oberen Endes bei Drehung des Spannrades 8, so dass das Band in Spannrichtung 9 in an sich bekannter Weise gespannt wird.The clamping unit 3 has a fixed tooth plate 4 for laying on the lower end of the tape to be closed. A movable one Tension shoe 5 is serrated on the underside for cooperation with the tooth plate 4. The top of the tension shoe 5 has a support surface 10 which is suitable for placing the upper end of the tape to be closed. Furthermore, a pivotable rocker 6 is provided with a serrated, rotatable about a clamping axis 7, drivable Tensioning wheel 8 for pressing the upper end of the band against the tensioning shoe 5 and for grasping the upper end when rotating of the tensioning wheel 8, so that the band in the tensioning direction 9 in is tensioned in a known manner.

Die Drehachse der schwenkbaren Wippe 6 ist im gezeigten Ausführungsbeispiel etwa zwischen dem Spannschuh 5 und der Grundplatte 2 und in Spannrichtung 9 hinter der Auflagefläche 10 des Spannschuhs 5 angeordnet. Dadurch kann die Wippe 6 mit dem Spannrad 8 ohne grossen Kraftaufwand in jeder Gebrauchslage der Vorrichtung, insbesondere bei gespanntem Band, wieder abgehoben werden. Diese Anordnung der Wippe 6 ist jedoch für die Erfindung nicht wesentlich.The axis of rotation of the pivotable rocker 6 is in the embodiment shown about between the tension shoe 5 and the Base plate 2 and in the clamping direction 9 behind the support surface 10 of the tension shoe 5 arranged. This allows the rocker 6 with the tensioning wheel 8 without great effort in any position of use the device, especially when the belt is tensioned again be lifted off. However, this arrangement of the rocker 6 is not essential for the invention.

Die Wippe 6 mit dem Spannrad 8 ist mittels Betätigung eines Hebels 11 schwenkbar. Wenn sie in Spannrichtung 9 nach hinten geschwenkt ist, ist der Spannschuh 5 von der Zahnplatte 4 abhebbar, so dass das untere zu verschliessende Ende des Bandes zwischen der Zahnplatte 4 und dem Spannschuh 5 eingeführt werden kann. Dann wird das untere Bandende eingeklemmt, und das Spannrad 8 wird mit Abstand zum Spannschuh 5 gehalten, so dass das obere zu verschliessende Ende des Bandes zwischen dem Spannschuh 5 und dem Spannrad 8 eingeführt werden kann. Wenn die Wippe 6 in Spannrichtung 9 nach vorne geschwenkt ist, wird das Spannrad 8 gegen die Auflagefläche des Spannschuhs 5 gedrückt und klemmt das obere Bandende ein, so dass durch Drehung des Spannrades 8 der Spannvorgang durchgeführt werden kann.The rocker 6 with the tensioning wheel 8 is actuated by a Lever 11 pivotable. If in the tension direction 9 to the rear is pivoted, the clamping shoe 5 can be lifted off the tooth plate 4, so that the lower end of the tape to be closed inserted between the tooth plate 4 and the clamping shoe 5 can be. Then the lower end of the band is pinched, and the tensioning wheel 8 is held at a distance from the tensioning shoe 5, so that the upper end of the tape to be closed between the tensioning shoe 5 and the tensioning wheel 8 can be inserted. When the rocker 6 is pivoted forward in the clamping direction 9 is, the tensioning wheel 8 against the bearing surface of the tensioning shoe 5 pressed and clamps the upper end of the tape so that by rotating the tensioning wheel 8, the tensioning process is carried out can be.

Der Antrieb des Spannrades 8 zum Spannen des Bandes, wenn das Spannrad 8 auf dem Spannschuh 5 aufliegt, erfolgt mittels eines Motors 12, der koaxial mit dem Spannrad 8 angeordnet und über ein ebenfalls koaxial mit dem Spannrad 8 angeordnetes, an sich bekanntes Getriebe, beispielsweise ein Planetengetriebe, mit dem Spannrad 8 verbunden ist. Die Drehzahl des Antriebsmotors 12 wird mit Hilfe des Planetengetriebes, das unter der Wippenhaube 13 koaxial mit der Spannachse 7 gelagert ist, auf das gewünschte Mass reduziert. Diese Anordnung ermöglicht eine sehr kompakte Bauweise und einen hohen Gesamtwirkungsgrad des Spannantriebs. Dies ist bei einer Spanneinheit mit Akku-Betrieb wesentlich.The drive of the tensioning wheel 8 for tensioning the band, if that Tensioning wheel 8 rests on tensioning shoe 5 is carried out by means of a Motor 12, which is arranged coaxially with the tensioning wheel 8 and via a coaxially arranged with the tensioning wheel 8, known transmission, for example a planetary gear, is connected to the tensioning wheel 8. The speed of the Drive motor 12 is powered by the planetary gear supported coaxially with the clamping axis 7 under the rocker hood 13 is reduced to the desired level. This arrangement enables a very compact design and a high overall efficiency of the tension drive. This is with a clamping unit with battery operation essential.

Sowohl die Verschliesseinheit als auch die Spanneinheit 3 werden motorisch angetrieben, wobei der Antriebsmotor 12 der Spannvorrichtung und auch der Motor der Verschliessvorrichtung von einem Akku gespeist werden können.Both the closing unit and the clamping unit 3 are motor-driven, the drive motor 12 of the Clamping device and also the motor of the closing device can be powered by a battery.

Beim Spannvorgang wird das ebenfalls koaxial mit der Spannachse 7 gelagerte Spannrad 8 mittels des Motors 12 angetrieben, so dass es im Gegenuhrzeigersinn gedreht wird und das Band in Spannrichtung 9 spannt. Eine nicht gezeigte Rücklaufsperre sorgt dafür, dass das Spannrad 8 nur in Spannrichtung 9 gedreht werden kann. Mittels einer nicht gezeigten Verschliesstaste wird nach dem Spannvorgang die Verschliesseinheit aktiviert zum Reibverschweissen der Enden des gespannten Bandes. Da die Verschliesseinheit in Spannrichtung 9 hinter dem Spannrad 8 angeordnet ist, ist das obere Bandende bei der Verschliesseinheit nicht gespannt. Dies ist vorteilhaft beim Reibverschweissen der beiden sich überlappenden Enden des Bandes, da ein nicht gespannter Bandabschnitt leichter in Vibration zu versetzen ist als ein gespannter Bandabschnitt.During the clamping process, this also becomes coaxial with the clamping axis 7 mounted tensioning wheel 8 driven by the motor 12, so it turns counterclockwise and that Tension band in tension direction 9. A backstop, not shown ensures that the tensioning wheel 8 only in the tensioning direction 9 can be rotated. By means of a locking button, not shown becomes the sealing unit after the clamping process activated for friction welding the ends of the tensioned Band. Since the closing unit in the clamping direction 9 behind the tensioning wheel 8 is arranged, the upper end of the band is at Closing unit not tensioned. This is advantageous when Friction welding the two overlapping ends of the Band, because a non-tensioned band section is more likely to vibrate is to be moved as a tensioned band section.

Als Antriebsmotor 12 kann beispielsweise ein Elektromotor oder ein Druckluftmotor verwendet werden. Vorteilhaft wird ein bürstenloser Gleichstrommotor gewählt, der mit dem Gleichstrom des Akkus betrieben werden kann. Das Drehmoment des Antriebsmotors 12 des Spannrades 8 ist einstellbar, so dass für unterschiedliche zu umreifende Gegenstände entsprechende Bandspannungsbereiche eingestellt werden können.For example, an electric motor can be used as the drive motor 12 or an air motor can be used. Will be beneficial a brushless DC motor selected with the Direct current of the battery can be operated. The torque the drive motor 12 of the tensioning wheel 8 is adjustable, so that appropriate for different objects to be strapped Band tension ranges can be set.

Die Figur 2 zeigt eine Schnittansicht der erfindungsgemässen Vorrichtung. Der Antriebsmotor 12 ist beispielsweise ein bürstenloser Gleichstrommotor, der koaxial mit dem Spannrad 8 und mit dem Getriebe angeordnet ist. Das Getriebe ist in der gezeigten Ausführungsform ein an sich bekanntes, zweistufiges Planetengetriebe. Das Motorritzel 14 des Antriebsmotors 12 wirkt mit dem Planetenrad 15 der ersten Untersetzungsstufe zusammen. Die Planetenräder 15 der ersten Stufe sind am Planetenradträger 16 der ersten Stufe gelagert. Mittels des Planetenradträgers 17 der zweiten Untersetzungsstufe, des Ritzels 18 der zweiten Stufe und der Planetenräder 19 der zweiten Stufe wird die Drehzahl des Antriebsmotors 12 weiter auf das gewünschte Mass reduziert und das Spannrad 8 angetrieben.Figure 2 shows a sectional view of the inventive Contraption. The drive motor 12 is, for example, a brushless one DC motor, which is coaxial with the tensioning wheel 8 and is arranged with the transmission. The gearbox is in the shown embodiment a known, two-stage Planetary gear. The motor pinion 14 of the drive motor 12 works with the planetary gear 15 of the first reduction stage together. The planet gears 15 of the first stage are on the planet gear carrier 16 stored the first stage. By means of the planet carrier 17 the second reduction stage, the pinion 18 of the second stage and the planet gears 19 of the second Stage, the speed of the drive motor 12 continues to increase the desired size is reduced and the tensioning wheel 8 is driven.

Das Spannrad 8 weist vorteilhaft eine innere Aussparung auf, und das Planetengetriebe ist teilweise platzsparend in dieser Aussparung untergebracht. Dazu ist das Spannrad 8 beispielsweise zylindermantel- oder ringförmig oder als ein zylindrischer Ring ausgebildet, wobei die Innenseite gezahnt ausgeführt ist. Die Wippe 6 ist mittels eines Deckels 20 verschlossen.The tensioning wheel 8 advantageously has an inner recess, and the planetary gear is partially space-saving in this Recess housed. For this purpose, the tensioning wheel 8 is for example cylindrical or ring-shaped or as a cylindrical Ring formed, the inside is serrated is. The rocker 6 is closed by means of a cover 20.

Die Vorrichtung ist mit einem an sich bekannten, nicht gezeigten, separaten Antriebsmotor für die Verschliessvorrichtung versehen. Daher kann jeder Motor optimal den jeweiligen Anforderungen angepasst werden. Beide Antriebsmotoren sind mittels eines einzigen, ebenfalls an sich bekannten und nicht gezeigten Akkus speisbar. Der rationelle Akku-Betrieb ist durch den hohen Wirkungsgrad des erfindungsgemässen Spannradantriebs ermöglicht.The device is equipped with a known, not shown, separate drive motor for the closing device Mistake. Therefore, each engine can optimally match the respective Requirements are adjusted. Both drive motors are by means of a single, also known per se and not shown batteries can be fed. The rational battery operation is due to the high efficiency of the tensioning wheel drive according to the invention enables.

In der Figur 3 ist eine perspektivische Explosionsansicht des Spannantriebs der Vorrichtung wiedergegeben. Die Planetenräder 15 und der Planetenradträger 16 bilden die erste Untersetzungsstufe. Der Planetenradträger 17 und die Planetenräder 19 bilden die zweite Untersetzungsstufe. Natürlich kann auch ein anderes Getriebe verwendet werden, zum Beispiel ein harmonisches Getriebe ("harmonic drive").FIG. 3 is an exploded perspective view of the Tension drive of the device reproduced. The planet gears 15 and the planet carrier 16 form the first reduction stage. The planet carrier 17 and the planet gears 19 form the second reduction stage. Of course you can too another gear can be used, for example a harmonic Transmission ("harmonic drive").

Claims (8)

  1. Tensioning and sealing apparatus for strapping an object with a band, which apparatus comprises a housing (1) having a tensioning unit (3) for retaining two ends of the bands which are to be sealed and for tensioning the same and having a sealing unit for connecting the two mutually overlapping ends, the tensioning unit (3) exhibiting a tensioning shoe (5) and a drivable tensioning wheel (8) which is fastened on a pivotable rocker (6) and is intended for pressing the band against the tensioning shoe (5) and for gripping the same upon rotation, and whereby the tensioning wheel (8) is driven with the aid of a drive motor (12) which is arranged coaxially with the tensioning wheel (8) characterized in that the drive motor (12) is connected to the tensioning wheel (8) via a gear mechanism which is also arranged coaxially with the tensioning wheel (8).
  2. Apparatus according to Claim 1, characterized in that the drive motor (12) for the tensioning wheel (8) is an electric motor or a compressed-air motor.
  3. Apparatus according to Claim 1 or 2, characterized in that the tensioning wheel (8) exhibits an inner cutout, and at least part of the gear mechanism is accommodated in the cutout of the tensioning wheel (8).
  4. Apparatus according to Claim 3, characterized in that the tensioning wheel (8) is designed as a cylindrical ring, the inner side being configured in a toothed manner.
  5. Apparatus according to one of Claims 1 to 4, characterized in that the gear mechanism is a planet gear mechanism (14, 15, 16, 17, 18, 19).
  6. Apparatus according to one of Claims 1 to 5, characterized in that the apparatus is provided with a separate drive motor for the sealing device.
  7. Apparatus according to Claim 6, characterized in that the two drive motors can be fed by means of an accumulator.
  8. Apparatus according to one of Claims 1 to 7, characterized in that the torque of the drive motor (12) of the tensioning wheel (8) can be adjusted.
EP96108153A 1995-05-26 1996-05-22 Tensioning and fixing device for tying an object with a tape Expired - Lifetime EP0744342B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH157195 1995-05-26
CH157195 1995-05-26
CH1571/95 1995-05-26

Publications (2)

Publication Number Publication Date
EP0744342A1 EP0744342A1 (en) 1996-11-27
EP0744342B1 true EP0744342B1 (en) 1999-08-18

Family

ID=4213544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108153A Expired - Lifetime EP0744342B1 (en) 1995-05-26 1996-05-22 Tensioning and fixing device for tying an object with a tape

Country Status (6)

Country Link
US (1) US5690023A (en)
EP (1) EP0744342B1 (en)
JP (1) JPH08324506A (en)
AT (1) ATE183459T1 (en)
CA (1) CA2176636A1 (en)
DE (1) DE59602770D1 (en)

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ATE249967T1 (en) * 1998-10-29 2003-10-15 Orgapack Gmbh STRAPING DEVICE
US6260337B1 (en) * 1999-10-27 2001-07-17 Illinois Tool Works Inc. Hand strapping tool
US7497068B2 (en) * 2007-07-10 2009-03-03 Illinois Tool Works Inc. Two-piece strapping tool
US9315283B2 (en) * 2008-04-23 2016-04-19 Signode Industrial Group Llc Strapping device with an energy storage means
US11999516B2 (en) 2008-04-23 2024-06-04 Signode Industrial Group Llc Strapping device
EP3549876B1 (en) * 2008-04-23 2021-03-10 Signode International IP Holdings LLC Strapping device with an electrical drive
CN201411061Y (en) * 2008-04-23 2010-02-24 奥格派克有限公司 Strapping equipment provided with transmission device
CN102026875B (en) * 2008-04-23 2016-01-20 信诺国际Ip控股有限责任公司 With the knot installation of take-up device
CN102026874A (en) * 2008-04-23 2011-04-20 奥格派克有限公司 Mobile strapping device
US10518914B2 (en) 2008-04-23 2019-12-31 Signode Industrial Group Llc Strapping device
CH705743A2 (en) 2011-11-14 2013-05-15 Illinois Tool Works Strapper.
WO2014167377A1 (en) 2012-09-24 2014-10-16 Signode International Ip Holdings Llc Strapping device having a pivotable rocker
CH708294A2 (en) 2013-05-05 2014-12-15 Orgapack Gmbh Strapper.
CH709220A2 (en) 2014-02-10 2015-08-14 Orgapack Gmbh Strap application of a strapping device for strapping goods with a strapping band.
DE102014011929A1 (en) * 2014-08-14 2016-02-18 Fromm Holding Ag Drive unit for a strapping device
USD864688S1 (en) 2017-03-28 2019-10-29 Signode Industrial Group Llc Strapping device
CN219056664U (en) * 2022-09-23 2023-05-23 浙江维派包装设备有限公司 Tensioning mechanism

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DE3229870A1 (en) * 1982-08-11 1984-02-16 Hoesch Werke Ag, 4600 Dortmund Device for tensioning a hoop around a package and for binding the overlapping ends of the hoop
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US5476569A (en) * 1992-10-12 1995-12-19 Sekisui Jushi Kabushiki Kaisha Binding tool of friction welding type for a thermoplastic strap

Also Published As

Publication number Publication date
DE59602770D1 (en) 1999-09-23
US5690023A (en) 1997-11-25
JPH08324506A (en) 1996-12-10
CA2176636A1 (en) 1996-11-27
ATE183459T1 (en) 1999-09-15
EP0744342A1 (en) 1996-11-27

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