EP0728647B1 - Trolley for transporting work pieces - Google Patents

Trolley for transporting work pieces Download PDF

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Publication number
EP0728647B1
EP0728647B1 EP96102441A EP96102441A EP0728647B1 EP 0728647 B1 EP0728647 B1 EP 0728647B1 EP 96102441 A EP96102441 A EP 96102441A EP 96102441 A EP96102441 A EP 96102441A EP 0728647 B1 EP0728647 B1 EP 0728647B1
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EP
European Patent Office
Prior art keywords
rail
roller
current
rollers
carriage
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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
EP96102441A
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German (de)
French (fr)
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EP0728647A1 (en
Inventor
Erich Grossenbacher
Albrecht Trenner
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Montech AG
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Montech AG
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Publication date
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Publication of EP0728647A1 publication Critical patent/EP0728647A1/en
Application granted granted Critical
Publication of EP0728647B1 publication Critical patent/EP0728647B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C13/00—Locomotives or motor railcars characterised by their application to special systems or purposes
    • B61C13/04—Locomotives or motor railcars characterised by their application to special systems or purposes for elevated railways with rigid rails

Definitions

  • the invention relates to a carriage for transporting Workpieces, material or the like, in particular in one Longitudinal transfer system on a rail, on the rollers abut that move at least one carrier plate, wherein this carrier plate on the one hand with the rollers and on the other hand with a mounting plate for the workpieces, the material or the like. rotatably connected about an axis of rotation is.
  • the present invention is based on the object in EP-A 0 618 123 carriage relating to To improve power consumption.
  • Corresponding brushes are used to drive the carriage that are sliding on busbars should be after the present invention the decrease in current over a Roll of current-conducting material, preferably a carbon roll, respectively.
  • This causes wear and tear Abrasion significantly reduced, leading to disturbances in the System and especially in the control of the carriage can lead.
  • the carbon rollers roll the current guide rails from.
  • the carbon rollers are preferably pivotable and rotatably mounted on bearing tongues, with a corresponding spring force are applied, which the Swing the bearing tongues against the current guide rails.
  • a carriage 1 according to the invention is on a rail 2 of an otherwise not shown in detail Longitudinal transfer system arranged.
  • This carriage 1 serves for example as a workpiece carrier for the transport of Workpieces from processing station to processing station or as a material carrier from one depot to one Processing station.
  • this carriage 1 drives automatically on the Rail 2.
  • the rollers 3 and 4 are in bearings 5 and 6 in a carrier plate 7 rotatably mounted.
  • a front Carrier plate 7.1 and a rear carrier plate 7.2 At the rear carrier plate 7.2 are rollers 3.2 and 4.2 and on the front support plate 7.1 castors 3.1 and 4.1 arranged.
  • the rear support plate 7.2 is via a pivot bearing 8 and a bearing housing 9 with a U-shaped cover profile 10 connected on which an actual mounting plate 11 lies on.
  • the straight guide roller 13 preferably has a jacket 14 Polyurethane based on a sleeve 15, preferably Bronze, vulcanized.
  • the straight guide roller turns around a pivot pin 16 which is connected to the carrier plate 7 is screwed.
  • the screw head 17 sits in one corresponding stepped bore 18.
  • front carrier plate 7.1 are in the direction of travel in front of the axis of rotation 12.1 of the carrier plate 7.1 straight guide rollers 13.1 arranged according to the straight guide rollers 13 are designed.
  • the carrier plate 7.1 is over prismatic rollers 19 connected to a bearing ring 20 on the U-shaped Cover profile 10 is fixed.
  • This bearing ring 20 has a V-shaped circumferential groove 21 in which the appropriately contoured circumferential surface of the prism roller 19 intervenes.
  • the prism roller 19 is slightly cambered, so that there is a point contact in the circumferential groove 21 is coming.
  • the prism roller 19 is a bearing 22 with the Carrier plate 7.1 connected.
  • the bearing ring 20 arrange three prism rollers 19.1, 19.2 and 19.3.
  • a prism roller 19 is preferably mounted eccentrically, so that play between the rollers 19 and the bearing ring 20 can be adjusted.
  • rollers 3.1 and 4.1 in the front part of the carriage 1 are at least partially of housing shells 23.1 and 23.2 embrace. Both housing shells 23.1 and 23.2 are after outside with cooling fins 24.1 and 24.2.
  • each housing shell 23.1 and 23.2 is opposite the respective roller 3.1 or 4.1 a support roller 25 arranged, which is supported against the rail in the use position.
  • the support roller 25 is about a bearing 26 around a pivot pin 27 connected to an angle rail 28, which is adjustable transversely to the rail 2 on the housing shell 23 is arranged.
  • a rear leg 29 this Angled rail 28 is penetrated by a screw 30 which with its screw head against a housing stop 31 supports.
  • Through the housing stop 31 is the Screw 30 accessible for a turning tool, however that when turning as a spindle for the angle rail 28th works. In this way, the angle rail 28 together with the support roller 25 in the direction of the rail 2 be moved towards or away from it.
  • Sensors 32.1 and 32.2 are recognizable, which have corresponding Lines with a control board, not shown in detail are connected in the housing shell 23.1.
  • the sensors 32.1 and 32.2 sit in a separate housing part 33.1, that the housing shell 23.1 is attached.
  • the housing part 33.1 is on a housing part 33.2, which is connected to the housing shell 23.2, a current draw connected.
  • the current is in corresponding current guide rails 34.1 and 34.2.
  • the removal takes place via carbon rollers 35, which are rotatable are held between two bearing tongues 36.1 and 36.2.
  • These bearing tongues 36 are at one end of a pivot pin 37 held by which they also towards the Current guide rail 34 or pivoted away from it can. It is provided that the one above the other arranged carbon rollers 35 or their tongues 36 in stand at an angle of approx. 90 ° to each other.
  • the Pivot pin 37 a spring not shown, which is supported against a bearing tongue 36 that the Coal roll 35 in contact with the current guide rail 34 is held.
  • the mounting plate 11 stored "floating" against the cover profile. For this engages the cover profile 10 with a cross-sectionally T-shaped Pin 42 in a sleeve 43 in a recess 44 in the mounting plate 11, this sleeve 43 a undercut shoulder 45 forms. Against this undercut shoulder 45 supports an elastic Ring 46 from a head 47 of the pin 42 at the same time reaches under.
  • This mounting allows the mounting plate 11 on the one hand are moved laterally to a limited extent and on the other hand, can be removed or placed on top.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)

Description

Die Erfindung betrifft einen Laufwagen zum Transport von Werkstücken, Material od. dgl., insbesondere in einem Längstransfersystem auf einer Schiene, an der Laufrollen anliegen, die zumindest eine Trägerplatte bewegen, wobei diese Trägerplatte einerseits mit den Laufrollen und andererseits mit einer Montageplatte für die Werkstücke, das Material od. dgl. drehbar um eine Drehachse verbunden ist.The invention relates to a carriage for transporting Workpieces, material or the like, in particular in one Longitudinal transfer system on a rail, on the rollers abut that move at least one carrier plate, wherein this carrier plate on the one hand with the rollers and on the other hand with a mounting plate for the workpieces, the material or the like. rotatably connected about an axis of rotation is.

Ein derartiger Laufwagen ist beispielsweise in der EP-A 0 618 123 beschrieben, auf die im vorliegenden Fall besonders Bezug genommen wird für alle Einzelheiten, die nachfolgend nicht näher beschrieben sind.Such a carriage is for example in EP-A 0 618 123, particularly in the present case Reference is made to all the details below are not described in detail.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, den in der EP-A 0 618 123 gezeigten Laufwagen betreffend die Stromabnahme zu verbessern.The present invention is based on the object in EP-A 0 618 123 carriage relating to To improve power consumption.

Zur Lösung dieser Aufgabe führt einmal, daß zur Abnahme des Stromes eine Rolle aus stromleitendem Material vorgesehen ist. To solve this problem leads once that the decrease of Current provided a roll of current-conducting material is.

Während nach der EP-A 0 618 123 zur Stromabnahme für einen Antrieb des Laufwagens entsprechende Bürsten eingesetzt werden, die auf Stromschienen entlanggleiten, soll nach der vorliegenden Erfindung die Abnahme des Stromes über eine Rolle aus stromleitendem Material, bevorzugt eine Kohlerolle, erfolgen. Hierdurch wird der Verschleiss bzw. der Abrieb wesentlich vermindert, der zu Störungen in der Anlage und insbesondere in der Steuerung des Laufwagens führen kann. Die Kohlerollen rollen die Stromführungsschienen ab. Bevorzugt sind die Kohlerollen schwenkbar und drehbar an Lagerzungen gelagert, wobei sie mit einer entsprechenden Federkraft beaufschlagt sind, welche die Lagerzungen gegen die Stromführungsschienen hinschwenken. While according to EP-A 0 618 123 for power consumption for one Corresponding brushes are used to drive the carriage that are sliding on busbars should be after the present invention the decrease in current over a Roll of current-conducting material, preferably a carbon roll, respectively. This causes wear and tear Abrasion significantly reduced, leading to disturbances in the System and especially in the control of the carriage can lead. The carbon rollers roll the current guide rails from. The carbon rollers are preferably pivotable and rotatably mounted on bearing tongues, with a corresponding spring force are applied, which the Swing the bearing tongues against the current guide rails.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt in

  • Figur 1 eine Stirnansicht eines erfindungsgemässen Laufwagens in Gebrauchslage auf einer geschnitten dargestellte Schiene eines Längstransfersystems;
  • Figur 2 einen Längsschnitt durch den Laufwagen gemäss Figur 1 entlang Linie II-II ohne Schiene;
  • Figur 3 einen Querschnitt durch den Laufwagen gemäss Figur 1 und die dort gezeigte Schiene;
  • Figur 4 eine teilweise aufgebrochen dargestellte Draufsicht auf den Laufwagen gemäss Figur 1;
  • Figur 5 einen Querschnitt durch verschiedene Elemente des Laufwagens gemäss Figur 1;
  • Figur 6 einen vergrössert dargestellten Ausschnitt aus dem Laufwagen gemäss Figur 1.
    • Further advantages, features and details of the invention result from the following description of preferred exemplary embodiments and from the drawing; this shows in
  • Figure 1 is an end view of a carriage according to the invention in the position of use on a cut rail of a longitudinal transfer system;
  • 2 shows a longitudinal section through the carriage according to Figure 1 along line II-II without rail;
  • 3 shows a cross section through the carriage according to Figure 1 and the rail shown there;
  • FIG. 4 shows a top view, partially broken away, of the carriage according to FIG. 1;
  • FIG. 5 shows a cross section through various elements of the carriage according to FIG. 1;
  • FIG. 6 shows an enlarged section of the carriage according to FIG. 1.

    • Gemäss Figur 1 ist ein erfindungsgemässer Laufwagen 1 an einer Schiene 2 eines ansonsten nicht näher gezeigten Längstransfersystems angeordnet. Dieser Laufwagen 1 dient beispielsweise als Werkstückträger zum Transport von Werkstücken von Bearbeitungsstation zu Bearbeitungsstation oder aber auch als Materialträger von einem Depot zu einer Bearbeitungsstation.According to FIG. 1, a carriage 1 according to the invention is on a rail 2 of an otherwise not shown in detail Longitudinal transfer system arranged. This carriage 1 serves for example as a workpiece carrier for the transport of Workpieces from processing station to processing station or as a material carrier from one depot to one Processing station.

    Bevorzugt fährt dieser Laufwagen 1 selbstätig auf der Schiene 2. Hierzu sind beidseits der Schiene zwei Laufrollen 3 und 4 (siehe Figur 3 und 4) vorgesehen, welche in ihren äusseren Konturen einer Anlagefläche an der Schiene 2 angeglichen sind. Die entsprechende Ausgestaltung und Anpassung an die Schiene ist in der EP-A 0 618 123 beschrieben, auf die Bezug genommen wird. Die Laufrollen 3 und 4 sind in Lagern 5 und 6 in einer Trägerplatte 7 drehbar gelagert. Dabei gibt es, wie in Figur 4 ersichtlich, bei dem vorliegenden Laufwagen 1 eine vordere Trägerplatte 7.1 und eine hintere Trägerplatte 7.2. An der hinteren Trägerplatte 7.2 sind Laufrollen 3.2 und 4.2 und an der vorderen Trägerplatte 7.1 Laufrollen 3.1 und 4.1 angeordnet.Preferably, this carriage 1 drives automatically on the Rail 2. There are two on both sides of the rail Rollers 3 and 4 (see Figures 3 and 4) provided which in its outer contours of a contact surface on the Rail 2 are aligned. The corresponding design and adaptation to the rail is in EP-A 0 618 123 to which reference is made. The rollers 3 and 4 are in bearings 5 and 6 in a carrier plate 7 rotatably mounted. There is, as in Figure 4 can be seen in the present carriage 1 a front Carrier plate 7.1 and a rear carrier plate 7.2. At the rear carrier plate 7.2 are rollers 3.2 and 4.2 and on the front support plate 7.1 castors 3.1 and 4.1 arranged.

    Die hintere Trägerplatte 7.2 ist über ein Drehlager 8 und ein Lagergehäuse 9 mit einem U-förmigen Deckprofil 10 verbunden, auf dem eine eigentliche Montageplatte 11 aufliegt. Hinter einer Drehachse 12 für die Trägerplatte 7.2 befinden sich zwei Geradführungsrollen 13, wobei eine Geradführungsrolle in Figur 6 näher gezeigt ist. Die Geradführungsrolle 13 weist einen Mantel 14 bevorzugt aus Polyurethan auf, der auf einer Hülse 15, bevorzugt aus Bronze, aufvulkanisiert ist. Dabei dreht die Geradführungsrolle um einen Drehbolzen 16, der mit der Trägerplatte 7 verschraubt ist. Der Schraubkopf 17 sitzt in einer entsprechenden Stufenbohrung 18.The rear support plate 7.2 is via a pivot bearing 8 and a bearing housing 9 with a U-shaped cover profile 10 connected on which an actual mounting plate 11 lies on. Behind an axis of rotation 12 for the carrier plate 7.2 there are two straight guide rollers 13, one Straight guide roller is shown in more detail in Figure 6. The straight guide roller 13 preferably has a jacket 14 Polyurethane based on a sleeve 15, preferably Bronze, vulcanized. The straight guide roller turns around a pivot pin 16 which is connected to the carrier plate 7 is screwed. The screw head 17 sits in one corresponding stepped bore 18.

    Auch an der vorderen Trägerplatte 7.1 sind in Fahrtrichtung vor der Drehachse 12.1 der Trägerplatte 7.1 Geradführungsrollen 13.1 angeordnet, die entsprechend den Geradführungsrollen 13 ausgestaltet sind.Also on the front carrier plate 7.1 are in the direction of travel in front of the axis of rotation 12.1 of the carrier plate 7.1 straight guide rollers 13.1 arranged according to the straight guide rollers 13 are designed.

    Im übrigen ist die Trägerplatte 7.1 jedoch über Prismenrollen 19 mit einem Lagerring 20 verbunden, der an dem U-förmigen Deckprofil 10 festliegt. Dieser Lagerring 20 weist eine V-förmige Umfangsnut 21 auf, in welche die entsprechend konturierte Umfangsfläche der Prismenrolle 19 eingreift. Dabei ist die Prismenrolle 19 leicht bombiert, so dass es zu einer Punktberührung in der Umfangsnut 21 kommt. Die Prismenrolle 19 ist über ein Lager 22 mit der Trägerplatte 7.1 verbunden. Otherwise, the carrier plate 7.1 is over prismatic rollers 19 connected to a bearing ring 20 on the U-shaped Cover profile 10 is fixed. This bearing ring 20 has a V-shaped circumferential groove 21 in which the appropriately contoured circumferential surface of the prism roller 19 intervenes. The prism roller 19 is slightly cambered, so that there is a point contact in the circumferential groove 21 is coming. The prism roller 19 is a bearing 22 with the Carrier plate 7.1 connected.

    In Figur 4 ist erkennbar, dass sich um den Lagerring 20 drei Prismenrollen 19.1, 19.2 und 19.3 anordnen. Hierdurch kann die Trägerplatte 7.1 um die Achse 12.1 drehen. Bevorzugt ist eine Prismenrolle 19 exzentrisch gelagert, so dass ein Spiel zwischen den Rollen 19 und dem Lagerring 20 eingestellt werden kann.It can be seen in FIG. 4 that the bearing ring 20 arrange three prism rollers 19.1, 19.2 and 19.3. Hereby can turn the support plate 7.1 about the axis 12.1. A prism roller 19 is preferably mounted eccentrically, so that play between the rollers 19 and the bearing ring 20 can be adjusted.

    Die Laufrollen 3.1 und 4.1 im vorderen Teil des Laufwagens 1 sind zumindest teilweise von Gehäuseschalen 23.1 und 23.2 umfangen. Beide Gehäuseschalen 23.1 und 23.2 sind nach aussen hin mit Kühlrippen 24.1 und 24.2 belegt.The rollers 3.1 and 4.1 in the front part of the carriage 1 are at least partially of housing shells 23.1 and 23.2 embrace. Both housing shells 23.1 and 23.2 are after outside with cooling fins 24.1 and 24.2.

    In jeder Gehäuseschale 23.1 und 23.2 ist gegenüber der jeweiligen Laufrolle 3.1 bzw. 4.1 eine Stützrolle 25 angeordnet, die sich gegen die Schiene in Gebrauchslage abstützt. Dabei ist die Stützrolle 25 über ein Lager 26 um einen Drehbolzen 27 mit einer Winkelschiene 28 verbunden, die quer zur Schiene 2 verstellbar an der Gehäuseschale 23 angeordnet ist. Ein hinterer Schenkel 29 dieser Winkelschiene 28 wird von einer Schraube 30 durchsetzt, die sich mit ihrem Schraubenkopf gegen einen Gehäuseanschlag 31 abstützt. Durch den Gehäuseanschlag 31 hindurch ist die Schraube 30 allerdings für ein Drehwerkzeug zugänglich, so daß sie beim Drehen als Spindel für die Winkelschiene 28 wirkt. Auf diese Art und Weise kann die Winkelschiene 28 zusammen mit der Stützrolle 25 in Richtung auf die Schiene 2 hin oder von ihr weg bewegt werden. Dabei erfolgt eine Einstellung der Stützrolle 25 gegenüber der Schiene 2.In each housing shell 23.1 and 23.2 is opposite the respective roller 3.1 or 4.1 a support roller 25 arranged, which is supported against the rail in the use position. The support roller 25 is about a bearing 26 around a pivot pin 27 connected to an angle rail 28, which is adjustable transversely to the rail 2 on the housing shell 23 is arranged. A rear leg 29 this Angled rail 28 is penetrated by a screw 30 which with its screw head against a housing stop 31 supports. Through the housing stop 31 is the Screw 30 accessible for a turning tool, however that when turning as a spindle for the angle rail 28th works. In this way, the angle rail 28 together with the support roller 25 in the direction of the rail 2 be moved towards or away from it. There is a Setting the support roller 25 relative to the rail 2.

    Unterhalb der Stützrolle 25 und der Gehäuseschale 23.1 sind Sensoren 32.1 und 32.2 erkennbar, die über entsprechende Leitungen mit einer nicht näher gezeigten Steuerungsplatine in der Gehäuseschale 23.1 verbunden sind. Die Sensoren 32.1 und 32.2 sitzen dabei in einem eigenen Gehäuseteil 33.1, das der Gehäuseschale 23.1 angesetzt ist. Below the support roller 25 and the housing shell 23.1 Sensors 32.1 and 32.2 are recognizable, which have corresponding Lines with a control board, not shown in detail are connected in the housing shell 23.1. The sensors 32.1 and 32.2 sit in a separate housing part 33.1, that the housing shell 23.1 is attached.

    Gegenüber dem Gehäuseteil 33.1 ist an einem Gehäuseteil 33.2, welches mit der Gehäuseschale 23.2 verbunden ist, eine Stromabnahme verbunden. Der Strom wird in entsprechende Stromführungschienen 34.1 und 34.2 geführt. Die Abnahme erfolgt jedoch über Kohlerollen 35, die drehbar zwischen zwei Lagerzungen 36.1 und 36.2 gehalten sind. Diese Lagerzungen 36 sind einends von einem Drehbolzen 37 gehalten, um den sie auch in Richtung auf die Stromführungsschiene 34 bzw. von ihr weg geschwenkt werden können. Dabei ist vorgesehen, dass die übereinander angeordneten Kohlerollen 35 bzw. deren Lagerzungen 36 in einem Winkel ca. 90° zueinander stehen. Ferner ist dem Drehbolzen 37 eine nicht näher gezeigte Feder aufgesetzt, die sich so gegen eine Lagerzunge 36 abstützt, dass die Kohlerolle 35 in Anlage an der Stromführungsschiene 34 gehalten wird.Opposite the housing part 33.1 is on a housing part 33.2, which is connected to the housing shell 23.2, a current draw connected. The current is in corresponding current guide rails 34.1 and 34.2. However, the removal takes place via carbon rollers 35, which are rotatable are held between two bearing tongues 36.1 and 36.2. These bearing tongues 36 are at one end of a pivot pin 37 held by which they also towards the Current guide rail 34 or pivoted away from it can. It is provided that the one above the other arranged carbon rollers 35 or their tongues 36 in stand at an angle of approx. 90 ° to each other. Furthermore, the Pivot pin 37 a spring not shown, which is supported against a bearing tongue 36 that the Coal roll 35 in contact with the current guide rail 34 is held.

    Innerhalb der Lagerschale 23.2 befindet sich ein Antrieb für die Laufrolle 4.1, über die dann der gesamte Laufwagen 1 entlang der Schiene 2 bewegt wird. Von diesem Antrieb soll im vorliegenden Fall nur der Motor 38 erwähnt sein, dessen Welle 39 über ein nicht näher gezeigtes Zahnriemengetriebe mit einem Antriebsrad 40 verbunden ist. Dieses Antriebsrad 40 weist eine feste Verbindung mit der Laufrolle 4.1 auf.There is a drive within the bearing shell 23.2 for the roller 4.1, over which the entire carriage 1 is moved along the rail 2. From this drive only the motor 38 should be mentioned in the present case, whose shaft 39 via a toothed belt transmission, not shown is connected to a drive wheel 40. This Drive wheel 40 has a fixed connection with the Roller 4.1 on.

    Gemäss Figur 5 ist im übrigen die Montageplatte 11 gegenüber dem Deckprofil "schwimmend" gelagert. Hierzu greift das Deckprofil 10 mit einem querschnittlich T-förmigen Zapfen 42 in eine Hülse 43 in einer Ausnehmung 44 in der Montageplatte 11 ein, wobei diese Hülse 43 eine hinterschnittene Schulter 45 ausbildet. Gegen diese hinterschnittene Schulter 45 stützt sich ein elastischer Ring 46 ab, der gleichzeitig einen Kopf 47 des Zapfens 42 untergreift. Durch diese Lagerung kann die Montageplatte 11 einerseits in begrenztem Umfange seitlich bewegt werden und andererseits nach oben entfernt bzw. aufgesetzt werden.5 is the mounting plate 11 stored "floating" against the cover profile. For this engages the cover profile 10 with a cross-sectionally T-shaped Pin 42 in a sleeve 43 in a recess 44 in the mounting plate 11, this sleeve 43 a undercut shoulder 45 forms. Against this undercut shoulder 45 supports an elastic Ring 46 from a head 47 of the pin 42 at the same time reaches under. This mounting allows the mounting plate 11 on the one hand are moved laterally to a limited extent and on the other hand, can be removed or placed on top.

    Claims (2)

    1. Travelling carriage for the transportation of workpieces, material or the like, more especially in a longitudinal transfer system on a rail (2), which has travel rollers (3, 4), which can rest on the rail and which displace at least one support plate (7), this support plate (7) being connected to the travel rollers (3, 4) on one side and to a mounting plate (11) for the workpieces, the material or the like on the other side so as to be rotatable about a rotary axle (12), and a motor (38), which uses current from a current-conducting rail (34) on the rail (2), being provided for driving at least one travel roller (4.1), characterised in that one roller (35) formed from current-conductive material is provided to receive the current.
    2. Travelling carriage according to claim 1, characterised in that the roller (35) is disposed so as to be pivotable about a pivot pin (37) and rotatable between two bearing tongues (36).
    EP96102441A 1995-02-25 1996-02-19 Trolley for transporting work pieces Expired - Lifetime EP0728647B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19506670 1995-02-25
    DE19506670A DE19506670A1 (en) 1995-02-25 1995-02-25 Carriage for transporting workpieces

    Publications (2)

    Publication Number Publication Date
    EP0728647A1 EP0728647A1 (en) 1996-08-28
    EP0728647B1 true EP0728647B1 (en) 1999-09-22

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    US (1) US5626080A (en)
    EP (1) EP0728647B1 (en)
    DE (2) DE19506670A1 (en)

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    Also Published As

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    DE19506670A1 (en) 1996-08-29
    EP0728647A1 (en) 1996-08-28
    US5626080A (en) 1997-05-06
    DE59603115D1 (en) 1999-10-28

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