EP2213610B1 - Rotating device for turning crates; forklifts being provided with such rotating device - Google Patents

Rotating device for turning crates; forklifts being provided with such rotating device Download PDF

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Publication number
EP2213610B1
EP2213610B1 EP10151926A EP10151926A EP2213610B1 EP 2213610 B1 EP2213610 B1 EP 2213610B1 EP 10151926 A EP10151926 A EP 10151926A EP 10151926 A EP10151926 A EP 10151926A EP 2213610 B1 EP2213610 B1 EP 2213610B1
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EP
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Prior art keywords
rotating device
rotating shaft
shaft
axis
rotating
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EP10151926A
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German (de)
French (fr)
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EP2213610A1 (en
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Rob Matti
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Griptech BV
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Griptech BV
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/125—Platforms; Forks; Other load supporting or gripping members rotatable about a longitudinal axis

Definitions

  • the invention further relates to a device, preferably a forklift, which is equipped with a rotating device.
  • Such a rotary device as well as a forklift with a preassembled rotary device are known from the US patent US 2,541,268 known.
  • this turning device By means of this turning device, the forks, which are fastened to a support frame, can be rotated by 180 degrees for emptying containers which are carried by the forks.
  • a problem with this known rotary device is that the rotation axis, frame and drive means are designed so that a driver who operates the forklift with preassembled rotary device does not have a good view of the forks and possibly of the load to be carried. Incorrectly picking up the cargo due to poor visibility, however, could result in accidents involving material damage and could result in injury to personnel. At the same time, the limited visibility causes a slower load absorption.
  • the known rotary device is relatively expensive and requires many parts, whereby the lift to be lifted with the forklift a relatively high Has its own weight and lifting and transporting loads requires relatively much energy.
  • the rotary device according to the invention according to claim 1 is suitable for rotating e.g. Cases, wherein the rotating device comprises a mounting frame which is fastened or attachable to a device, and a support frame rotatable relative to the mounting frame.
  • an axis connected to the mounting frame is designed as a hollow cylindrical tube with two open ends.
  • the support frame stationary mounting frame comprises a drive means with a rack, by means of which the axis of the support frame is rotatable.
  • This hollow open-ended cylinder tube provides the operator with excellent visibility through the axle to the forks and load. With this construction, the risk of accidents due to incorrect reception is greatly reduced. In addition, the better visibility allows a faster recording of the load, as per unit time more charges can be processed.
  • the view through the axis is limited only by the inside of the cylinder tube of the axle.
  • Such an axle not only improves the Visibility, but also provides a weight saving of the entire rotating device. By this weight saving on the one hand lifting and transporting requires less energy and on the other hand, the residual capacity of the device, for example, increases in a forklift.
  • Such a hollow tubular axis and a concentric cylindrical rotary axis for rotation by means of a drive means of the support frame allow a significant weight saving, whereby the total weight of the rotating device is reduced. Due to this weight saving, lifting and transporting with e.g. less energy for a forklift truck.
  • the rotating device according to the invention is easier and cheaper to produce.
  • the axis is shaped so that the inner diameter of the axis with the axis of rotation around it provides the operator with a clear view through the center of the rotating device. An operator on one side of the rotating device thus has a good view of the other side of the rotating device for picking up and controlling a load.
  • the axis of rotation may be e.g. the inner wall to be coated with a coating, the coating has the function of a sliding bearing, which is functionally between the inner wall of the axis of rotation and the outer wall of the axis in order to reduce the rotational resistance. Between the axis of rotation and the axis a separate sliding bearing is mounted. Such sliding bearing ensures that the axis of rotation is mounted as a sliding bearing to the axis and has the additional advantage that this plain bearing is easily replaceable and simplifies maintenance.
  • the length of the cylindrical axis of rotation is equal to or smaller than the diameter of the tubular axis, preferably the Diameter of the tubular axis is at least twice as large as the length of the cylindrical axis of rotation.
  • the axis of rotation is made relatively compact, whereby only a small installation depth is required in the rotating device.
  • the diameter of the viewing window of the axis is of course determined by the distance of the center line of the axis to the tubular cylinder wall.
  • the length of the axis is only slightly larger than the length of the axis of rotation. This additional length is necessary so that the axis of rotation during operation does not touch the mounting frame.
  • a drive means comprises a displaceable rack, which cooperates with the possibility of attack on the axis of rotation, wherein the possibility of attack is formed in the form of a toothing.
  • Such, known per se and inexpensive drive means are particularly suitable to reliably rotate the axis of rotation with respect to the mounting frame.
  • the known drive means can be actuated both electrically and pneumatically, although hydraulic actuation is preferred.
  • An embodiment of the rotating device is characterized in that the toothing is integrated in the wall of the cylindrical axis of rotation.
  • a toothed ring radially onto the axis of rotation, wherein the axis of rotation preferably has two sections with different diameters in the longitudinal direction in order to compensate as much as possible for the thickness of the toothed ring to be applied.
  • the gearing is mounted over more than 50% of the circumference of the axis of rotation so that the angle of rotation of the load is greater than 180 degrees, thereby ensuring that the contents fall completely out of the box.
  • Another embodiment of the rotary device according to the invention is characterized in that the device to which the mounting frame is attached or attachable, a forklift with an integrated rotary device is or the rotating device is fastened via fasteners removably attached to the forklift.
  • FIG. 1 a turning device 1 for boxes (not shown) is shown according to the invention, wherein a rotating device 1 comprises both a mounting frame 3 and a support frame 5 which is rotatable with respect to the mounting frame 3.
  • the mounting frame 3 is preferably with quick couplings 7 (see FIG. 2 ) detachably attached to a device (not shown) such as a forklift.
  • the fixed in contrast to the rotatable support frame 5 mounting frame 3 of the rotating device 1 has a drive means 9 for rotating the support frame 5 about a tubular axis 11. Both sides of the tubular axis 11 are open and the axis 11 is fixedly fixed to the mounting frame 3.
  • the mounting frame 3 has at this point a corresponding recess in which the axis 11 is fixed.
  • the cylindrical axis of rotation 13 which is part of the support frame 5, mounted mounted.
  • a cover plate 10 is secured by screws 8.
  • a small gap is provided between the rotation axis 13 and the cover plate 10 and between the rotation axis 13 and mounting frame 3, a small gap is provided so that the rotation axis 13 does not come into contact with the stationary cover plate 10 and not with the mounting frame 3 during rotation.
  • the axis of rotation 13 is included.
  • the cylindrical axis of rotation 13 consists of a first cylinder wall section 15 and a second cylinder wall section 17 located behind it in the longitudinal direction of the cylinder, the wall thickness d1 (FIG. FIG. 5c ) of the first cylinder wall section 15 is larger than the wall thickness d2 of the second cylinder wall section 17.
  • approximately 60% of the outer circumference of the second cylinder wall section 17 is designed with a toothing 25, so that the rotary device can rotate more than 180 degrees.
  • the drive means 9 is connected via the connecting pin 31 with the mounting frame 3.
  • the drive means 9 can be connected for its operation via hydraulic or electrical connection means with eg a forklift.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Description

Die Erfindung betrifft eine Drehvorrichtung zum Drehen von z.B. Kisten, wobei die Drehvorrichtung einen Befestigungsrahmen umfasst, der an einer Einrichtung befestigt oder befestigbar ist, sowie einen in Bezug zum Befestigungsrahmen drehbaren Trägerrahmen, wobei eine mit dem Befestigungsrahmen verbundene Achse als ein hohlförmiges Zylinderrohr mit zwei offenen Enden ausgeführt ist.The invention relates to a rotating device for rotating e.g. Cases, wherein the rotating device comprises a mounting frame which is attached or attachable to a device, and a support frame rotatable relative to the mounting frame, wherein an axis connected to the mounting frame is designed as a hollow cylindrical tube with two open ends.

Die Erfindung bezieht sich ferner auf eine Einrichtung, vorzugsweise auf einen Gabelstapler, der mit einer Drehvorrichtung ausgerüstet ist.The invention further relates to a device, preferably a forklift, which is equipped with a rotating device.

Ein derartiges Drehgerät sowie auch ein Gabelstapler mit einem vormontierten Drehgerät sind aus der US-Patentschrift US 2,541,268 bekannt. Mit Hilfe dieses Drehgerätes können die an einem Trägerrahmen befestigten Gabelzinken für das Entleeren von Behältern, welche von den Gabelzinken getragen werden, um 180 Grad gedreht werden.Such a rotary device as well as a forklift with a preassembled rotary device are known from the US patent US 2,541,268 known. By means of this turning device, the forks, which are fastened to a support frame, can be rotated by 180 degrees for emptying containers which are carried by the forks.

Ein Problem dieses bekannten Drehgerätes ist, dass die Drehachse, Rahmen und Antriebsmittel so konstruiert sind, dass ein Fahrer, der den Gabelstapler mit vormontiertem Drehgerät bedient, keine gute Sicht auf die Gabelzinken und gegebenenfalls auf die zu tragende Ladung hat. Ein verkehrtes Aufnehmen der Ladung durch schlechte Sicht könnte jedoch zu Unfällen mit Materialschaden führen und eine Verletzungsgefahr für das Personal bedeuten. Gleichzeitig verursacht die eingeschränkte Sicht eine langsamere Lastenaufnahme.A problem with this known rotary device is that the rotation axis, frame and drive means are designed so that a driver who operates the forklift with preassembled rotary device does not have a good view of the forks and possibly of the load to be carried. Incorrectly picking up the cargo due to poor visibility, however, could result in accidents involving material damage and could result in injury to personnel. At the same time, the limited visibility causes a slower load absorption.

Weiterhin ist das bekannte Drehgerät relativ aufwendig und benötigt viele Teile, wodurch das mit dem Gabelstapler anzuhebende Drehgerät ein relativ hohes Eigengewicht aufweist und das Anheben und Transportieren von Ladungen relativ viel Energie erfordert.Furthermore, the known rotary device is relatively expensive and requires many parts, whereby the lift to be lifted with the forklift a relatively high Has its own weight and lifting and transporting loads requires relatively much energy.

Aus der US-Patentschrift 5,820,270 ist ferner ein Gabelstapler mit einer Drehvorrichtung bekannt, die eine speziell ausgeformte Drehlagerung (slewing bearing) umfasst. Darüber hinaus offenbart die Deutsche Offenlegungsschrift DE 100 12 331 A1 und auch die europäische Patentanmeldung EP 1 134 181 A2 eine Drehvorrichtung für Baumaschinen, insbesondere für Gabelstapler, mit einer motorisch angetriebenen Schneckenwelle und einem von deren Schneckenrad bewegten Zahnkranz, der mittels einer Wälzlagerung drehbar an einem an der Baumaschine befestigten Tragrahmen abgestützt ist und seinerseits ein von ihm bewegtes Arbeitselement trägt.From the U.S. Patent 5,820,270 Furthermore, a forklift with a rotating device is known, which comprises a specially shaped pivot bearing (slewing bearing). In addition, the German Offenlegungsschrift discloses DE 100 12 331 A1 and also the European patent application EP 1 134 181 A2 a turning device for construction machines, in particular for forklifts, with a motor-driven worm shaft and a toothed ring moved by the worm wheel, which is supported by means of a roller bearing rotatably mounted on a supporting frame attached to the construction machine and in turn carries a working element moved by it.

Die Aufgabe der Erfindung ist es, eine relativ einfache und gewichtssparende Drehvorrichtung zu konstruieren, welche für den Bediener eine ausgezeichnete Sicht auf die aufzunehmende Ladung ermöglicht.The object of the invention is to construct a relatively simple and weight-saving rotary device which allows the operator an excellent view of the load to be picked up.

Diese Aufgabe wird durch eine Drehvorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Die erfindungsgemäße Drehvorrichtung gemäß Anspruch 1 eignet sich zum Drehen von z.B. Kisten, wobei die Drehvorrichtung einen Befestigungsrahmen umfasst, der an einer Einrichtung befestigt oder befestigbar ist, sowie einen in Bezug zum Befestigungsrahmen drehbaren Trägerrahmen. Dabei ist eine mit dem Befestigungsrahmen verbundene Achse als ein hohlförmiges Zylinderrohr mit zwei offenen Enden ausgeführt. Erfindungsgemäß umfasst der im Gegensatz zum Trägerrahmen stationäre Befestigungsrahmen ein Antriebsmittel mit einer Zahnstange, mittels der die Achse des Trägerrahmens drehbar ist.This object is achieved by a rotating device with the features of claim 1. The rotary device according to the invention according to claim 1 is suitable for rotating e.g. Cases, wherein the rotating device comprises a mounting frame which is fastened or attachable to a device, and a support frame rotatable relative to the mounting frame. In this case, an axis connected to the mounting frame is designed as a hollow cylindrical tube with two open ends. According to the invention, in contrast to the support frame stationary mounting frame comprises a drive means with a rack, by means of which the axis of the support frame is rotatable.

Mit Hilfe dieses hohlen Zylinderrohres mit offenen Enden ist dem Bediener eine ausgezeichnete Sicht durch die Achse auf die Gabelzinken und die aufzunehmende Last möglich. Mit dieser Konstruktion wird das Risiko für Unfälle durch eine falsche Aufnahme stark reduziert. Außerdem ermöglichen die besseren Sichtverhältnisse ein schnelleres Aufnehmen der Last, da pro Zeiteinheit mehr Ladungen verarbeitet werden können. Die Sicht durch die Achse ist lediglich durch die Innenseite des Zylinderrohres der Achse beschränkt. Eine derartige Achse verbessert nicht nur die Sichtverhältnisse, sondern bietet ergänzend auch eine Gewichtseinsparung der gesamten Drehvorrichtung. Durch diese Gewichtseinsparung erfordert einerseits das Anheben und Transportieren weniger Energie und wird andererseits die Resttragfähigkeit der Einrichtung, z.B. bei einem Gabelstapler vergrößert.This hollow open-ended cylinder tube provides the operator with excellent visibility through the axle to the forks and load. With this construction, the risk of accidents due to incorrect reception is greatly reduced. In addition, the better visibility allows a faster recording of the load, as per unit time more charges can be processed. The view through the axis is limited only by the inside of the cylinder tube of the axle. Such an axle not only improves the Visibility, but also provides a weight saving of the entire rotating device. By this weight saving on the one hand lifting and transporting requires less energy and on the other hand, the residual capacity of the device, for example, increases in a forklift.

Bei dieser Drehvorrichtung ist die Achse starr mit dem stationären Befestigungsrahmen verbunden, wobei um die Achse herum eine hohle zylinderförmige Drehachse des Trägerrahmens als ein Gleitlager gelagert ist.In this rotary device, the axis is rigidly connected to the stationary mounting frame, wherein about the axis around a hollow cylindrical axis of rotation of the support frame is mounted as a sliding bearing.

Eine derartige hohle rohrförmige Achse und eine konzentrisch darüber gelagerte zylinderförmige Drehachse für das Drehen mittels eines Antriebsmittels des Trägerrahmens ermöglichen eine wesentliche Gewichtseinsparung, wodurch das Gesamtgewicht der Drehvorrichtung reduziert wird. Durch diese Gewichtseinsparung erfordert das Anheben und Transportieren mit z.B. einem Gabelstapler weniger Energie. Außerdem ist die Drehvorrichtung entsprechend der Erfindung einfacher und günstiger zu produzieren. Weiterhin ist die Achse so geformt, dass der Innendurchmesser der Achse mit der Drehachse um sie herum für den Bediener eine freie Sicht durch die Mitte der Drehvorrichtung bietet. Ein Bediener an einer Seite der Drehvorrichtung hat zum Aufnehmen und Kontrollieren einer Ladung somit eine gute Sicht auf die andere Seite des Drehgerätes.Such a hollow tubular axis and a concentric cylindrical rotary axis for rotation by means of a drive means of the support frame allow a significant weight saving, whereby the total weight of the rotating device is reduced. Due to this weight saving, lifting and transporting with e.g. less energy for a forklift truck. In addition, the rotating device according to the invention is easier and cheaper to produce. Furthermore, the axis is shaped so that the inner diameter of the axis with the axis of rotation around it provides the operator with a clear view through the center of the rotating device. An operator on one side of the rotating device thus has a good view of the other side of the rotating device for picking up and controlling a load.

Bei der Drehachse kann z.B. die Innenwand mit einem Coating beschichtet sein, wobei das Coating die Funktion eines Gleitlagers hat, das funktional zwischen der Innenwand der Drehachse und der Außenwand der Achse liegt, um den Drehwiderstand zu reduzieren. Zwischen Drehachse und Achse ist ein separates Gleitlager montiert. Eine derartige Gleitlagerung sorgt dafür, dass die Drehachse wie ein Gleitlager zur Achse gelagert ist und hat zusätzlich den Vorteil, dass dieses Gleitlager einfach austauschbar ist und die Wartung vereinfacht.The axis of rotation may be e.g. the inner wall to be coated with a coating, the coating has the function of a sliding bearing, which is functionally between the inner wall of the axis of rotation and the outer wall of the axis in order to reduce the rotational resistance. Between the axis of rotation and the axis a separate sliding bearing is mounted. Such sliding bearing ensures that the axis of rotation is mounted as a sliding bearing to the axis and has the additional advantage that this plain bearing is easily replaceable and simplifies maintenance.

Die Länge der zylinderförmigen Drehachse ist genauso groß oder kleiner als der Durchmesser der rohrförmigen Achse, wobei vorzugsweise der Durchmesser der rohrförmigen Achse mindestens doppelt so groß ist wie die Länge der zylinderförmigen Drehachse.The length of the cylindrical axis of rotation is equal to or smaller than the diameter of the tubular axis, preferably the Diameter of the tubular axis is at least twice as large as the length of the cylindrical axis of rotation.

Durch diese Konstruktionsweise ist mittels eines maximalen Durchsichtfensters eine optimale Sicht vom Bediener durch die Achse gewährleistet. Gleichzeitig ist die Drehachse relativ kompakt ausgeführt, wodurch in der Drehvorrichtung nur eine kleine Einbautiefe erforderlich ist. Der Durchmesser des Sichtfensters der Achse wird selbstverständlich durch den Abstand der Mittellinie der Achse bis zur rohrförmigen Zylinderwand bestimmt. Die Länge der Achse ist lediglich minimal größer als die Länge der Drehachse. Diese zusätzliche Länge ist notwendig, damit die Drehachse im Betrieb den Befestigungsrahmen nicht berührt.This design ensures optimal visibility from the operator through the axle by means of a maximum viewing window. At the same time, the axis of rotation is made relatively compact, whereby only a small installation depth is required in the rotating device. The diameter of the viewing window of the axis is of course determined by the distance of the center line of the axis to the tubular cylinder wall. The length of the axis is only slightly larger than the length of the axis of rotation. This additional length is necessary so that the axis of rotation during operation does not touch the mounting frame.

Ein weiteres Kennzeichen der Erfindung ist, dass die Außenseite der Drehachse mindestens eine Angriffsmöglichkeit für ein Antriebsmittel aufweist. Auf diese Weise wird ein Angriffspunkt auf der Drehachse realisiert, damit die Drehachse mit dem Trägerrahmen auf verschiedene Weisen drehbar zur Achse ist.Another feature of the invention is that the outside of the axis of rotation has at least one possibility of attack for a drive means. In this way, a point of application on the axis of rotation is realized, so that the axis of rotation with the support frame is rotatable in various ways to the axis.

Erfindungsgemäß umfasst ein Antriebsmittel eine verschiebbare Zahnstange, welche mit der Angriffsmöglichkeit auf der Drehachse zusammenarbeitet, wobei die Angriffsmöglichkeit in Form einer Verzahnung ausgebildet ist.According to the invention, a drive means comprises a displaceable rack, which cooperates with the possibility of attack on the axis of rotation, wherein the possibility of attack is formed in the form of a toothing.

Derartige, an sich bekannte und kostengünstige Antriebsmittel sind besonders geeignet, um die Drehachse im Bezug zum Befestigungsrahmen zuverlässig zu drehen. Die bekannten Antriebsmittel können sowohl elektrisch als auch pneumatisch betätigt werden, obwohl eine hydraulische Betätigung bevorzugt wird.Such, known per se and inexpensive drive means are particularly suitable to reliably rotate the axis of rotation with respect to the mounting frame. The known drive means can be actuated both electrically and pneumatically, although hydraulic actuation is preferred.

Eine Ausführungsform der Drehvorrichtung zeichnet sich dadurch aus, dass die Verzahnung in die Wand der zylinderförmigen Drehachse integriert ist.An embodiment of the rotating device is characterized in that the toothing is integrated in the wall of the cylindrical axis of rotation.

Vorzugsweise ist die Verzahnung in der Wand der zylinderförmigen Drehachse in Form einer Einfräsung der Zähne in dieser Zylinderwand integriert.Preferably, the toothing is integrated in the wall of the cylindrical axis of rotation in the form of a milling of the teeth in this cylinder wall.

Die Drehachse besitzt eine erste Zylinderwandsektion ohne Verzahnung und eine zweite Zylinderwandsektion mit Verzahnung, welche zusammen einen rohrförmigen Zylinder bilden. Der Vorteil einer derartig integrierten Verzahnung ist, dass diese Verzahnung fest mit der Zylinderwand verbunden ist, weil sie im Wesentlichen aus einem Teil besteht. Außerdem wird der Außendurchmesser der Drehachse bei gleichbleibendem Innendurchmesser nicht größer, so dass eine Optimierung stattgefunden hat zwischen Durchsicht durch die Achse und Stärke der Zylinderwand der Drehachse. Diese Optimierung ist wichtig, weil ein möglichst kleiner Außendurchmesser der Drehachse einen beschränkten seitlichen Hub des Zahnstangenantriebes erforderlich macht und somit die Breite der Drehvorrichtung nicht vergrößert werden muss.The axis of rotation has a first cylinder wall section without teeth and a second cylinder wall section with teeth, which together form a tubular cylinder. The advantage of such an integrated toothing is that this toothing is firmly connected to the cylinder wall because it consists essentially of one part. In addition, the outer diameter of the axis of rotation is not larger with the same inner diameter, so that an optimization has taken place between viewing through the axis and thickness of the cylinder wall of the axis of rotation. This optimization is important because the smallest possible outer diameter of the rotation axis makes a limited lateral stroke of the rack drive required and thus the width of the rotating device does not need to be increased.

Es ist grundsätzlich aber auch möglich, einen Verzahnungsring radial auf die Drehachse anzuschweißen, wobei die Drehachse in Längsrichtung vorzugsweise zwei Sektionen mit unterschiedlichem Durchmesser aufweist, um die Stärke des aufzubringenden Verzahnungsringes möglichst auszugleichen.In principle, however, it is also possible to weld a toothed ring radially onto the axis of rotation, wherein the axis of rotation preferably has two sections with different diameters in the longitudinal direction in order to compensate as much as possible for the thickness of the toothed ring to be applied.

In einer bevorzugten Ausführungsform ist die Verzahnung über mehr als 50% des Umfangs der Drehachse angebracht, damit der Drehwinkel der Ladung größer ist als 180 Grad, wodurch bei Kisten gewährleistet ist, dass der Inhalt vollständig aus der Kiste fällt.In a preferred embodiment, the gearing is mounted over more than 50% of the circumference of the axis of rotation so that the angle of rotation of the load is greater than 180 degrees, thereby ensuring that the contents fall completely out of the box.

Eine weitere Ausführungsform der Drehvorrichtung gemäß der Erfindung zeichnet sich dadurch aus, dass die Einrichtung, an welcher der Befestigungsrahmen befestigt oder befestigbar ist, ein Gabelstapler mit einer integrierten Drehvorrichtung ist oder die Drehvorrichtung über Verbindungselemente abnehmbar an dem Gabelstapler befestigt ist.Another embodiment of the rotary device according to the invention is characterized in that the device to which the mounting frame is attached or attachable, a forklift with an integrated rotary device is or the rotating device is fastened via fasteners removably attached to the forklift.

Die Erfindung wird anhand von möglichen Ausführungsbeispielen in den Zeichnungen verdeutlicht:

Figur 1
zeigt eine perspektivische Darstellung der Drehvorrichtung gemäß der Erfindung in einer Vorderansicht;
Figur 2
zeigt ebenfalls eine perspektivische Darstellung der Drehvorrichtung gemäß der Erfindung, jedoch in einer Rückansicht;
Figur 3
zeigt eine perspektivische Darstellung eines Teils der Drehvorrichtung gemäß der Erfindung;
Figur 4
zeigt eine perspektivische Darstellung der Drehvorrichtung gemäß der Erfindung während des Drehens mit Hilfe der Drehachse; und
Figur 5 a)-d)
zeigen Teile der zylinderförmigen Drehachse.
The invention will be clarified with reference to possible exemplary embodiments in the drawings:
FIG. 1
shows a perspective view of the rotating device according to the invention in a front view;
FIG. 2
also shows a perspective view of the rotating device according to the invention, but in a rear view;
FIG. 3
shows a perspective view of a part of the rotating device according to the invention;
FIG. 4
shows a perspective view of the rotating device according to the invention during rotation by means of the axis of rotation; and
FIG. 5 a) -d)
show parts of the cylindrical axis of rotation.

Gleiche Teile haben in den verschiedenen Figuren die gleichen Bezugszeichen.Identical parts have the same reference numerals in the various figures.

In Figur 1 ist eine Drehvorrichtung 1 für Kisten (nicht abgebildet) gemäß der Erfindung abgebildet, wobei eine Drehvorrichtung 1 sowohl einen Befestigungsrahmen 3 als auch einen Trägerrahmen 5 aufweist, der im Bezug zum Befestigungsrahmen 3 drehbar ausgeführt ist. Der Befestigungsrahmen 3 ist vorzugsweise mit Schnellkupplungen 7 (siehe Figur 2) abnehmbar an einer Einrichtung (nicht abgebildet), wie z.B. einem Gabelstapler, befestigt.In FIG. 1 a turning device 1 for boxes (not shown) is shown according to the invention, wherein a rotating device 1 comprises both a mounting frame 3 and a support frame 5 which is rotatable with respect to the mounting frame 3. The mounting frame 3 is preferably with quick couplings 7 (see FIG. 2 ) detachably attached to a device (not shown) such as a forklift.

Am drehbaren Trägerrahmen 5 sind Gabelzinken 4 für das Aufnehmen der Ladung oder einer Kiste montiert.On the rotatable support frame 5 forks 4 are mounted for receiving the load or a box.

Die Drehvorrichtung 1, die in Figur 1 abgebildet ist, besitzt weiterhin einen Stützarm 2, der am Trägerrahmen 5 montiert ist und für eine seitliche Unterstützung der Kisten während des Drehens der Kisten zum Entleeren dient. Falls keine Kisten mit der Drehvorrichtung 1 zu drehen sind, kann der Stützarm 2 weggelassen oder abmontiert werden.The rotating device 1, which in FIG. 1 is shown, further has a support arm 2, which is mounted on the support frame 5 and serves for a lateral support of the boxes during the rotation of the boxes for emptying. If no boxes are to be rotated with the rotating device 1, the support arm 2 can be omitted or removed.

Die Drehvorrichtung 1 gemäß der Erfindung soll jetzt mit Hilfe der Figuren 1-4 und 5 a)-d) weiter erklärt werden, wobei der in Figur 2 abgebildete Stützarm 2 weggelassen wurde, und bei Figur 3 für eine bessere Erklärung der Trägerrahmen 3 weggelassen wurde.The rotating device 1 according to the invention will now be described with the help of Figures 1-4 and 5 a) -d) be further explained, with the in FIG. 2 Pictured support arm 2 omitted was, and at FIG. 3 has been omitted for a better explanation of the support frame 3.

Der im Gegensatz zum drehbaren Trägerrahmen 5 stationäre Befestigungsrahmen 3 der Drehvorrichtung 1 besitzt ein Antriebsmittel 9, um den Trägerrahmen 5 um eine rohrförmige Achse 11 zu drehen. Beide Seiten der rohrförmigen Achse 11 sind offen und die Achse 11 ist fest am Befestigungsrahmen 3 fixiert. Der Befestigungsrahmen 3 hat an dieser Stelle eine entsprechende Aussparung, in der die Achse 11 fixiert ist.The fixed in contrast to the rotatable support frame 5 mounting frame 3 of the rotating device 1 has a drive means 9 for rotating the support frame 5 about a tubular axis 11. Both sides of the tubular axis 11 are open and the axis 11 is fixedly fixed to the mounting frame 3. The mounting frame 3 has at this point a corresponding recess in which the axis 11 is fixed.

Über die rohrförmige Achse 11 ist mit Hilfe eines Gleitlagers (nicht abgebildet) die zylinderförmige Drehachse 13, die Teil des Trägerrahmens 5 ist, gelagert montiert. Am vorderen Ende (Richtung Gabelzinken 4) der stationären Achse 11 ist eine Abschlussscheibe 10 mit Schrauben 8 befestigt. Zwischen Drehachse 13 und Abschlussscheibe 10 und zwischen Drehachse 13 und Befestigungsrahmen 3 ist ein kleiner Spalt vorgesehen, damit die Drehachse 13 während des Drehens nicht mit der stationären Abschlussscheibe 10 und nicht mit dem Befestigungsrahmen 3 in Berührung kommt. Über die Abschlussscheibe 10 wird die Drehachse 13 eingeschlossen.About the tubular axis 11 (not shown) by means of a sliding bearing, the cylindrical axis of rotation 13, which is part of the support frame 5, mounted mounted. At the front end (forks 4) of the stationary axis 11, a cover plate 10 is secured by screws 8. Between the rotation axis 13 and the cover plate 10 and between the rotation axis 13 and mounting frame 3, a small gap is provided so that the rotation axis 13 does not come into contact with the stationary cover plate 10 and not with the mounting frame 3 during rotation. About the lens 10, the axis of rotation 13 is included.

Die zylinderförmige Drehachse 13 besteht aus einer ersten Zylinderwandsektion 15 und einer, sich in Längsrichtung des Zylinders dahinter befindlichen, zweiten Zylinderwandsektion 17, wobei die Wandstärke d1 (Figur 5c) der ersten Zylinderwandsektion 15 größer ist als die Wandstärke d2 der zweiten Zylinderwandsektion 17.The cylindrical axis of rotation 13 consists of a first cylinder wall section 15 and a second cylinder wall section 17 located behind it in the longitudinal direction of the cylinder, the wall thickness d1 (FIG. FIG. 5c ) of the first cylinder wall section 15 is larger than the wall thickness d2 of the second cylinder wall section 17.

Das Antriebsmittel 9 besteht aus einem Hydraulikzylinder 19, wobei an diesem Hydraulikzylinder eine Zahnstange 21 mit Verzahnung 23 befestigt ist. Die zweite Zylinderwandsektion 17 ist an ihren Außenumfang ebenfalls mit einer Verzahnung 25 versehen. Mit Hilfe des Hydraulikzylinders 19 und den in sich greifenden Verzahnungen 23 und 25 kann die Drehachse 13 in Bezug zur Achse 11 gedreht werden. Über die Verschiebung des Hydraulikzylinders 19 mit der daran befestigten Zahnstange 21 mit der Verzahnung 23 in Richtung des Pfeils P1 (Figur 3) wird die Drehachse 13 mit Hilfe der Verzahnung 25 gegen den Uhrzeigersinn in die durch Pfeil P2 angedeutete Richtung gedreht. In dem dargestellten Ausführungsbeispiel ist ca. 60% des Außenumfangs der zweiten Zylinderwandsektion 17 mit einer Verzahnung 25 ausgeführt, damit die Drehvorrichtung um mehr als 180 Grad drehen kann. Selbstverständlich ist es auch möglich, den gesamten Umfang der zweiten Zylinderwandsektion 17 mit einer Verzahnung 25 auszuführen, damit der Trägerrahmen 5 über 360 Grad in Bezug zum Befestigungsrahmen 3 drehen könnte. Das Antriebsmittel 9 ist über den Verbindungsbolzen 31 mit dem Befestigungsrahmen 3 verbunden. Weiterhin kann das Antriebsmittel 9 für seine Betätigung über hydraulische bzw. elektrische Verbindungsmittel mit z.B. einem Gabelstapler verbunden werden.The drive means 9 consists of a hydraulic cylinder 19, wherein a toothed rack 21 with toothing 23 is attached to this hydraulic cylinder. The second cylinder wall section 17 is also provided with a toothing 25 on its outer circumference. With the help of the hydraulic cylinder 19 and the interlocking teeth 23 and 25, the rotation axis 13 can be rotated with respect to the axis 11. About the displacement of the hydraulic cylinder 19 with the toothed rack 21 attached thereto with the toothing 23 in the direction of the arrow P1 (FIG. FIG. 3 ), the axis of rotation 13 by means of the teeth 25 in the counterclockwise direction through Arrow P2 direction indicated rotated. In the illustrated embodiment, approximately 60% of the outer circumference of the second cylinder wall section 17 is designed with a toothing 25, so that the rotary device can rotate more than 180 degrees. Of course, it is also possible to perform the entire circumference of the second cylinder wall section 17 with a toothing 25, so that the support frame 5 could rotate over 360 degrees with respect to the mounting frame 3. The drive means 9 is connected via the connecting pin 31 with the mounting frame 3. Furthermore, the drive means 9 can be connected for its operation via hydraulic or electrical connection means with eg a forklift.

Indem die rohrförmige Achse 11 hohl ausgeführt wird, kann der Bediener durch die Achse und somit durch die Drehvorrichtung hindurch nach vorne sehen, und die Arbeitssicherheit wird dadurch erhöht, dass die Sichtverhältnisse auf die aufzunehmende Last optimal sind. Außerdem ist das Eigengewicht der hohl ausgeführten Achsen 11 und 13 relativ gering, wodurch das Halten der Drehvorrichtung weniger Energie benötigt.By making the tubular axle 11 hollow, the operator can see ahead through the axle, and thus through the turning device, and the safety at work is increased by optimizing the visibility of the load to be picked up. In addition, the dead weight of the hollow axes 11 and 13 is relatively low, whereby the holding of the rotating device requires less energy.

Vorzugsweise besitzt der Trägerrahmen 5 Sichtfenster 33, wodurch die Sichtverhältnisse für den Bediener noch weiter optimiert werden. Mit Hilfe der Sichtfenster 33 wird das Eigengewicht weiter reduziert.Preferably, the support frame has 5 viewing window 33, whereby the visibility for the operator are further optimized. With the help of the viewing window 33, the weight is further reduced.

Claims (7)

  1. A rotating device for (1) turning, for example, crates, whereby the rotating device (1) comprises a fastening frame (3) that is fastened or can be fastened to a piece of equipment, and it also comprises a support frame (5) that can be rotated with respect to the fastening frame (3), whereby a shaft (11) joined to the fastening frame (3) is configured as a hollow cylindrical tube with two open ends, characterized in that the shaft (11) is rigidly joined to the stationary fastening frame (3), and a hollow cylindrical rotating shaft (13) of the support frame (5) is mounted as a sliding bearing around the shaft (11), whereby there is at least one point of engagement for the drive means (9) on the outside of the rotating shaft (13), and the point of engagement consists of a toothed segment (25), and in that the fastening frame (3), which, in contrast to the support frame (5), is stationary, comprises a drive means (9) with a toothed rack (21), by means of which the support frame (5) can be rotated around the shaft (11), whereby the length L of the rotating shaft (13) is considerably larger than its wall thickness d1, and the outer diameter of the rotating shaft (13), including the toothed rack (21) that engages there, is smaller than the height of the support frame (5), whereas the wall thickness d1 of the cylindrical rotating shaft (13) is sufficiently small in comparison to the total outer diameter of this rotating shaft (13) and the wall thickness of the tubular shaft (11) approximately matches the wall thickness d1 of the rotating shaft (13), as a result of which the maximum diameter is optimized to allow a view through the hollow tubular shaft (11), and the total outer diameter of the rotating shaft (13) is optimized as a function of the maximum possible traveling movement of the toothed rack (21).
  2. The rotating device according to claim 1, characterized in that the wall thickness d1 of the cylindrical rotating shaft (13) amounts to only about 5% of the total outer diameter of said rotating shaft (13).
  3. The rotating device according to claim 1, characterized in that the toothed segment (25) is integrated into the cylinder wall of the rotating shaft (13).
  4. The rotating device according to claim 3, characterized in that the toothed segment (25) extends over more than 50% of the circumference of the rotating shaft (13), and preferably takes up about 50% to 60% of the circumference of the rotating shaft (13).
  5. The rotating device according to one of the preceding claims 1 to 4, characterized in that the length of the shaft (11) is greater than the length of the rotating shaft (13).
  6. The rotating device according to one of the preceding claims, characterized in that the piece of equipment is a forklift into which the rotating device (1) is integrated, or on which the rotating device (1) can be detachably fastened by means of couplings (7).
  7. A piece of equipment, preferably a forklift, with a rotating device (1) according to one of the preceding claims installed on it.
EP10151926A 2009-01-30 2010-01-28 Rotating device for turning crates; forklifts being provided with such rotating device Active EP2213610B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1036491A NL1036491C2 (en) 2009-01-30 2009-01-30 ROTATOR FOR ROTATING, FOR example, BOXES AND LIFT TRUCK PROVIDED WITH SUCH ROTATOR.

Publications (2)

Publication Number Publication Date
EP2213610A1 EP2213610A1 (en) 2010-08-04
EP2213610B1 true EP2213610B1 (en) 2012-06-27

Family

ID=41010023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10151926A Active EP2213610B1 (en) 2009-01-30 2010-01-28 Rotating device for turning crates; forklifts being provided with such rotating device

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EP (1) EP2213610B1 (en)
NL (1) NL1036491C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104555827A (en) * 2015-01-06 2015-04-29 福建龙合机械制造有限公司 Rotating type box overturning device
CN105947936A (en) * 2016-06-30 2016-09-21 荣成中磊石材有限公司 Rotating pallet fork of forklift
CN106809770B (en) * 2017-03-01 2022-08-26 青岛科技大学 Automatic turning device with adjustable transverse and longitudinal spacing of pallet fork

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541268A (en) 1949-04-13 1951-02-13 Mercury Mfg Co Rotating fork carriage
DE1263607B (en) * 1964-06-08 1968-03-14 Valmet Oy Fa Loader with rotating set on the lifting carriage
JPS60319B2 (en) * 1979-07-16 1985-01-07 株式会社豊田自動織機製作所 Forklift rotating device
US4243355A (en) * 1979-09-24 1981-01-06 Brudi Equipment Co., Inc. Lift truck rotator with pressure-relieved valving
DE9414509U1 (en) * 1994-09-03 1995-09-28 Schmid, Christoph, 88079 Kressbronn Crate turner as attachment to a forklift
US5820270A (en) * 1997-05-23 1998-10-13 Totall Attachments Inc. Slewing turntable bearing
DE10012331A1 (en) * 2000-03-14 2001-09-20 Thyssen Krupp Ag Turning and tilting device for fork lift truck
IT251020Y1 (en) * 2000-03-14 2003-11-04 Roncari S R L ROTATION DEVICE FOR WORKING GROUPS OF OSIMILI LIFT TRUCKS.

Also Published As

Publication number Publication date
NL1036491C2 (en) 2010-08-02
EP2213610A1 (en) 2010-08-04

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