EP3142958B1 - Carrier device, which is to be fixed on a lifting vehicle and method for actuating said hitch assembly - Google Patents

Carrier device, which is to be fixed on a lifting vehicle and method for actuating said hitch assembly Download PDF

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Publication number
EP3142958B1
EP3142958B1 EP15744099.1A EP15744099A EP3142958B1 EP 3142958 B1 EP3142958 B1 EP 3142958B1 EP 15744099 A EP15744099 A EP 15744099A EP 3142958 B1 EP3142958 B1 EP 3142958B1
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EP
European Patent Office
Prior art keywords
transport
transport device
tensioning
power piston
carrier
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EP15744099.1A
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German (de)
French (fr)
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EP3142958A1 (en
Inventor
Otmar Kaup
Sebastian GROH
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Kaup & Co KG Gesellschaft fur Maschinenbau GmbH
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Kaup & Co KG Gesellschaft fur Maschinenbau GmbH
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Classifications

    • 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
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • 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
    • B66F9/122—Platforms; Forks; Other load supporting or gripping members longitudinally movable
    • 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
    • B66F9/19—Additional means for facilitating unloading
    • B66F9/195—Additional means for facilitating unloading for pushing the load

Definitions

  • the invention relates to a carrier device that is to be attached to a lifting vehicle according to the preamble of claim 1 and a method for actuating a carrier device according to the preamble of claim 8.
  • WO 2006/078156 A1 discloses a transport device such as a forklift truck with a chain integrated into a fork.
  • U.S. 2,663,443 discloses a transport device with a loading and unloading device for trucks, wherein a carrying device can be moved on a vertical arm.
  • U.S. 5,839,873 discloses a storage and retrieval device with a telescopic arrangement. The aforementioned devices are essentially equipped to be difficult to handle and also have a large working group and are limited in terms of performance.
  • US3096896 a carrier device with an attachment device, with a fork prong device comprising a pair of fork prongs, with a transport device with a chain drive for lateral movement of the attachment device, the transport device having at least one tensioning device.
  • the object is to provide a mounting device which avoids the disadvantages of the prior art and provides a safe and reliable carrier device.
  • the object is achieved by a carrier device according to claim 1.
  • the clamping device advantageously has a non-positive and positive drive element.
  • the transport device has two tensioning devices, in particular the device for driving a lateral movement of the attachment device, two drive chains, in particular configured to run in opposite directions.
  • the power piston is a plunger cylinder, the tension of the transport device being held on the tensioning device by the compressive force of the plunger cylinder.
  • the power piston is, as an alternative, a differential cylinder, the tension of the transport device being held on the tensioning device by the tensile force of the differential cylinder.
  • the differential cylinder has on one side of the Kolbenflä surface a piston rod, whereby it has an effective area difference, from which a ratio of piston area to an annular area results on a rod-side side. This allows the differential cylinder to extend and retract at two different speeds if required.
  • hydraulic piston is acted upon with oil by an oil motor which is assigned to the transport device, in particular the tensioning device.
  • the pressure generated in the power piston is held by a pressure holding device, in particular a check valve.
  • a preload valve is provided in front of at least one power piston, in particular the preload valve is provided in combination with a check valve.
  • the clamping device comprises two power pistons, in particular hydraulic pistons.
  • a method for actuating a carrier device which is to be attached to a lifting vehicle, with an attachment device, with at least one fork tine, transport device with a belt drive and / or a chain drive, with a tensioning device, according to one of claims 1 to 6, wherein the transport device is acted upon by means of a power piston, namely a plunger cylinder and / or a differential cylinder, with a clamping force, in particular a compressive force and / or a tensile force, which proportional to the transport tension of the transport device, with a drive chain, is set up.
  • a power piston namely a plunger cylinder and / or a differential cylinder
  • the pressure generated on the power piston is held by a pressure holding device, in particular a check valve.
  • the transport device is shortened by an adapted, predetermined length after a predetermined longitudinal expansion, in particular due to the use of the transport device.
  • Fig. 1a shows a mounting device 1 with a transport device 26, in particular a longitudinal transport device 4 in the form of a transport chain 6, in plan view.
  • a carrier device is not shown.
  • the attachment device 1 which is to be attached to a lifting vehicle (not shown), comprises a fork prong device 2 with at least one fork prong 3, in particular a pair of fork prongs 3. Furthermore, the fork prong 3 has at least one longitudinal transport device 4 arranged along the fork prong 3.
  • goods can be transported up and down on the fork prong 3, driven, for example, by an oil motor 11, which is arranged, for example, on an end 18 of the fork prong 3 on the lifting vehicle side.
  • the longitudinal transport device 4 is a transport chain 6.
  • the longitudinal transport device 4 is assigned a tensioning device 5 according to the invention, by means of which a predetermined transport tension of the longitudinal transport device 4 is to be maintained.
  • the tensioning device 5 is arranged within the course of a conveyor chain and comprises at least one power piston 7, which has a hydraulic piston 8 as a plunger cylinder 9, by means of which the longitudinal conveyor 4 is to be held at a predetermined conveyor tension by means of pressure loading.
  • a single-acting cylinder, such as a plunger cylinder 9, has only one piston side to which hydraulic fluid is applied. Work can only be carried out in one direction, with the return movement being carried out by an external force, e.g. a spring.
  • a plunger cylinder 9 still has no actual piston, but the piston rod serves as a piston.
  • a feed opening 15 is exemplified Oil is pumped from the oil motor 11 into the hydraulic piston.
  • a check valve 13 can be passed through in the sense of a pressure holding device 12 so that the pressure that has built up can be secured.
  • a preload valve 14 can also be provided, which ensures an oil flow only when a minimum pressure is reached. The oil flow to the oil motor 11 takes place, for example, via an oil line 17.
  • Figure 1b shows a mounting device 1 with transport chain 6 in side view.
  • the tensioning device 5, or a plunger cylinder 9 is rotated by the transport chain 6, driven by the oil motor 11, for example via a deflection roller device 27, in particular a roller device 22, and tensioned it by exerting pressure, so that a safe function is always guaranteed.
  • Figure 1c shows a section of a mounting device 1 with the transport chain 6 with a power piston 7, hydraulic piston 8, the plunger cylinder 9. Oil is filled into the cylinder through the feed opening 15 so that pressure can be built up.
  • Fig. 2a shows a mounting device 1 with a fork prong device 2 with at least one fork prong 3 with a transport device 26, in particular a longitudinal transport device 4 in the form of a toothed belt 18 in a plan view.
  • the transport tension of the longitudinal transport device 4 is maintained by a tensile stress which is exerted by a power piston 7 in the form of a differential cylinder 10.
  • the oil is supplied through a supply opening 15 into a first chamber 19.
  • a second chamber 20 of the differential cylinder 10 is acted upon, for example, by air, sucked in through an opening 16, so that only a small counter pressure is generated.
  • a check valve 13 can be passed through in the sense of a pressure holding device 12 so that the pressure that has built up can be secured.
  • a preload valve 14 can also be provided, which ensures an oil flow only when a minimum pressure is reached.
  • Figure 2b shows a mounting device 1 with a fork prong 3 and a longitudinal transport device 4 with toothed belt 18 in a side view.
  • the tensioning device 5 has a differential cylinder 10 and a deflection roller device 27, in particular a roller device 21, for unwinding the toothed belt 18.
  • Figure 2c shows a section of an attachment 1 with a power piston in the form of a differential cylinder 10, which has a first chamber 19, which is filled with oil, for example via a feed opening 15, and a second chamber 20, which is filled with air, for example, under normal pressure.
  • the power piston 7 exerts a tensile stress on the longitudinal transport device 4 and thus keeps it under transport stress.
  • Fig. 3 shows a carrier device 25 with a transport device 26 in a perspective view.
  • the transport device 26 has, for example, two drive chains 24 which are each driven by an oil motor 11.
  • a mounting device, not shown, is arranged on a carrier device 25 and can then be moved laterally by a moving element 28 which is connected to a drive chain 24.
  • One or both drive chains 24 are held at a predetermined tension by means of a tensioning device 5 including, in particular, a deflection roller device 27, so that a safe and reliable method is provided.

Description

Die Erfindung betrifft eine Trägervorrichtung, die an einem Hubfahrzeug anzubringen ist nach dem Oberbegriff von Anspruch 1 und ein Verfahren zur Betätigung einer Trägervorrichtung nach dem Oberbegriff von Anspruch 8.The invention relates to a carrier device that is to be attached to a lifting vehicle according to the preamble of claim 1 and a method for actuating a carrier device according to the preamble of claim 8.

Bekannt ist es, Längstransporteinrichtungen an Gabelzinken von Anbauvorrichtungen für Hubfahrzeuge vorzusehen, die den Nachteil aufweisen, dass spätestens nach einiger Zeit des Gebrauchs die Spannung unkontrollierbar nachlässt und möglicherweise ein aufwendiges händisches Nachspannen vorgenommen werden muss, oder ein Sicherheitsrisiko entsteht.It is known to provide longitudinal transport devices on forks of attachments for lifting vehicles, which have the disadvantage that after some time of use at the latest, the tension decreases uncontrollably and a complex manual retensioning may have to be carried out, or a safety risk arises.

WO 2006/078156 A1 offenbart eine Transportvorrichtung wie ein Gabelstapler, wobei eine Kette in eine Gabel integriert ist. US 2,663,443 offenbart eine Transportvorrichtung mit einer Belade- und Entladevorrichtung für Lastwagen, wobei eine Tragevorrichtung an einem senkrechten Arm verfahren werden kann. US 5,839,873 offenbart eine Lagerungs- und Entnahmevorrichtung mit einer teleskopierbaren Anordnung. Die vorgenannten Vorrichtungen sind im Wesentlich schwer handelbar ausgestattet und auch mit einem großen Arbeitskreisen sowie in der Leistungsfähigkeit beschränkt. WO 2006/078156 A1 discloses a transport device such as a forklift truck with a chain integrated into a fork. U.S. 2,663,443 discloses a transport device with a loading and unloading device for trucks, wherein a carrying device can be moved on a vertical arm. U.S. 5,839,873 discloses a storage and retrieval device with a telescopic arrangement. The aforementioned devices are essentially equipped to be difficult to handle and also have a large working group and are limited in terms of performance.

Weiterhin offenbart das Dokument US3096896 eine Trägervorrichtung mit einer Anbauvorrichtung, mit einer Gabelzinkeneinrichtung umfassend ein Paar Gabelzinken, mit einer Transporteinrichtung mit einem Kettenantrieb für eine seitliche Bewegung der Anbauvorrichtung, wobei die Transporteinrichtung zumindest eine Spanneinrichtung aufweist.Furthermore, the document discloses US3096896 a carrier device with an attachment device, with a fork prong device comprising a pair of fork prongs, with a transport device with a chain drive for lateral movement of the attachment device, the transport device having at least one tensioning device.

Aufgabe ist es, eine Anbauvorrichtung bereitzustellen, die die Nachteile des Stands der Technik vermeiden und eine sichere und zuverlässige Trägervorrichtung bereitstellen.The object is to provide a mounting device which avoids the disadvantages of the prior art and provides a safe and reliable carrier device.

Die Aufgabe wird gelöst durch eine Trägervorrichtung nach Anspruch 1.The object is achieved by a carrier device according to claim 1.

Vorteilhaft weist die Spanneinrichtung ein kraft- und formschlüssiges Antriebselement auf.The clamping device advantageously has a non-positive and positive drive element.

Vorteilhaft ist es, wenn die Transporteinrichtung zwei Spanneinrichtungen aufweist, insbesondere die Einrichtung zum Antrieb für eine seitliche Bewegung der Anbauvorrichtung, zwei Antriebsketten, insbesondere entgegengesetzt laufend eingerichtet.It is advantageous if the transport device has two tensioning devices, in particular the device for driving a lateral movement of the attachment device, two drive chains, in particular configured to run in opposite directions.

Erfindungsgemäß ist der Kraftkolben ein Plungerzylinder, wobei die Spannung der Transporteinrichtung durch Druckkraft des Plungerzylinders an der Spanneinrichtung zu halten ist.According to the invention, the power piston is a plunger cylinder, the tension of the transport device being held on the tensioning device by the compressive force of the plunger cylinder.

Erfindungsgemäß ist der Kraftkolben als Alternative eine Differentialzylinder, wobei die Spannung der Transporteinrichtung durch Zugkraft des Differentialzylinders an der Spanneinrichtung zu halten ist. Der Differentialzylinder weist auf einer Seite der Kolbenflä che eine Kolbenstange auf, wodurch er einen Wirkflächenunterschied aufweist, aus dem sich ein Verhältnis von Kolbenfläche zu einer Ringfläche auf einer stangenseitigen Seite ergibt. Dadurch kann der Differentialzylinder bei Bedarf mit zwei verschiedenen Geschwindigkeiten aus- und einfahren.According to the invention, the power piston is, as an alternative, a differential cylinder, the tension of the transport device being held on the tensioning device by the tensile force of the differential cylinder. The differential cylinder has on one side of the Kolbenflä surface a piston rod, whereby it has an effective area difference, from which a ratio of piston area to an annular area results on a rod-side side. This allows the differential cylinder to extend and retract at two different speeds if required.

Vorteilhaft ist es, wenn der Hydraulikkolben durch einen Ölmotor, der der Transporteinrichtung, insbesondere der Spanneinrichtung, zugeordnet ist, mit Öl beaufschlagt ist.It is advantageous if the hydraulic piston is acted upon with oil by an oil motor which is assigned to the transport device, in particular the tensioning device.

Vorteilhaft ist es, wenn der in dem Kraftkolben erzeugte Druck durch eine Druckhalteeinrichtung, insbesondere ein Rückschlagventil, gehalten ist.It is advantageous if the pressure generated in the power piston is held by a pressure holding device, in particular a check valve.

Vorteilhaft ist es, wenn ein Vorspannventil vor zumindest einem Kraftkolben vorgesehen ist, insbesondere das Vorspannventil in Kombination mit einem Rückschlagventil vorgesehen ist.It is advantageous if a preload valve is provided in front of at least one power piston, in particular the preload valve is provided in combination with a check valve.

Vorteilhaft ist es, wenn ein Druckbegrenzungsventil vorgesehen ist, über das Öl aus dem Kraftkolben entweichen kann, insbesondere im Fall eine Havarie.It is advantageous if a pressure limiting valve is provided through which oil can escape from the power piston, especially in the event of an accident.

Vorteilhaft ist es, wenn die Spanneinrichtung zwei Kraftkolben, insbesondere Hydraulikkolben, umfasst.It is advantageous if the clamping device comprises two power pistons, in particular hydraulic pistons.

Die Aufgabe wird ebenfalls gelöst durch ein Verfahren zur Betätigung einer Trägervorrichtung, die an einem Hubfahrzeug anzubringen ist, mit einer Anbauvorrichtung, mit zumindest einer Gabelzinke Transporteinrichtung mit einem Riemenantrieb und/oder einem Kettenantrieb, mit einer Spanneinrichtung, nach einem der Ansprüche 1 bis 6, wobei die Transporteinrichtung mittels eines Kraftkolbens, nämlich eines Plungerzylinders und/oder eines Differentialzylinders, mit einer Spannkraft, insbesondere einer Druckkraft und/oder einer Zugkraft, beaufschlagt wird, die proportional zu der Transportspannung der Transporteinrichtung, mit einer Antriebskette, eingerichtet wird.The object is also achieved by a method for actuating a carrier device, which is to be attached to a lifting vehicle, with an attachment device, with at least one fork tine, transport device with a belt drive and / or a chain drive, with a tensioning device, according to one of claims 1 to 6, wherein the transport device is acted upon by means of a power piston, namely a plunger cylinder and / or a differential cylinder, with a clamping force, in particular a compressive force and / or a tensile force, which proportional to the transport tension of the transport device, with a drive chain, is set up.

Vorteilhaft ist es, wenn der an dem Kraftkolben erzeugte Druck durch eine Druckhalteeinrichtung gehalten wird, insbesondere einem Rückschlagventil.It is advantageous if the pressure generated on the power piston is held by a pressure holding device, in particular a check valve.

Vorteilhaft ist es, wenn die Transporteinrichtung nach einer vorgegebenen Längsdehnung, insbesondere aufgrund des Gebrauchs der Transporteinrichtung, um eine angepasst vorgegebene Länge gekürzt wird.It is advantageous if the transport device is shortened by an adapted, predetermined length after a predetermined longitudinal expansion, in particular due to the use of the transport device.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüchen und der nachstehenden Beschreibung, in der Ausführungsbeispiele des Gegenstands der Erfindung in Verbindung mit den Zeichnungen näher erläutert sind.Further features and advantages of the invention emerge from the claims and the following description, in which exemplary embodiments of the subject matter of the invention are explained in more detail in conjunction with the drawings.

Es zeigen:

Fig. 1a
eine Anbauvorrichtung mit Transportkette in Aufsicht,
Fig. 1b
eine Anbauvorrichtung mit Transportkette in Seitenansicht,
Fig. 1c
einen Ausschnitt einer Anbauvorrichtung,
Fig. 2a
eine Anbauvorrichtung mit Zahnriemen in Aufsicht,
Fig. 2b
eine Anbauvorrichtung mit Zahnriemen in Seitenansicht,
Fig. 2c
einen Ausschnitt einer Anbauvorrichtung und
Fig. 3
eine Trägervorrichtung in perspektivischer Ansicht.
Show it:
Fig. 1a
an attachment device with a transport chain in supervision,
Figure 1b
a mounting device with transport chain in side view,
Figure 1c
a section of a mounting device,
Fig. 2a
an attachment device with toothed belt in supervision,
Figure 2b
a mounting device with toothed belt in side view,
Figure 2c
a section of a mounting device and
Fig. 3
a carrier device in perspective view.

Fig. 1a zeigt eine Anbauvorrichtung 1 mit einer Transporteinrichtung 26, insbesondere einer Längstransporteinrichtung 4 in Form einer Transportkette 6, in Aufsicht. Eine Trägervorrichtung ist nicht dargestellt. Die Anbauvorrichtung 1, die an einem nicht dargestellten Hubfahrzeug anzubringen ist, umfasst eine Gabelzinkeneinrichtung 2 mit zumindest einer Gabelzinke 3, insbesondere einem Paar Gabelzinken 3. Weiterhin weist die Gabelzinke 3 zumindest eine Längstransporteinrichtung 4 angeordnet entlang der Gabelzinke 3 auf. Durch die Längstransporteinrichtung 4 können Güter auf die Gabelzinke 3 herauf und herunter transportiert werden, angetrieben beispielhaft durch einen Ölmotor 11, der beispielhaft an einem hubfahrzeugseitigen Ende 18 der Gabelzinke 3 angeordnet ist. Die Längstransporteinrichtung 4 ist eine Transportkette 6. Unter anderem um die Transportwirkung über längere Zeit aufrecht zu erhalten, ist der Längstransporteinrichtung 4 erfindungsgemäß eine Spanneinrichtung 5 zugeordnet, durch die eine vorgegebene Transportspannung der Längstransporteinrichtung 4 zu halten ist. Die Spanneinrichtung 5 ist innerhalb eines Transportkettenverlaufs angeordnet und umfasst mindestens einen Kraftkolben 7, dere einen Hydraulikkolben 8, als ein Plungerzylinder 9, durch den die Längstransporteinrichtung 4 mittels Druckbelastung auf vorgegebener Transportspannung zu halten ist. Ein einfach wirkender Zylinder, wie ein Plungerzylinder 9, hat nur eine Kolbenseite, die mit Hydraulikflüssigkeit beaufschlagt wird. Arbeit kann nur in eine Richtung ausgeübt werden, wobei die Rückbewegung durch Fremdkraft erfolgt, z.B. Feder. Ein Plungerzylinder 9 besitzt weiterhin keinen eigentlichen Kolben, sondern die Kolbenstange dient als Kolben. An einer Zuführöffnung 15 wird beispielhaft Öl vom Ölmotor 11 in den Hydraulikkolben gepumpt. Hierbei kann ein Durchlaufen eines Rückschlagventils 13 im Sinne einer Druckhaltevorrichtung 12 vorgesehen sein, damit der aufgebaute Druck gesichert werden kann. Zudem kann noch ein Vorspannventil 14 vorgesehen sein, das einen Öldurchfluss erst bei Erreichen eines Minimaldrucks sicherstellt. Der Ölzufluss zum Ölmotor 11 erfolgt beispielhaft über eine Ölleitung 17. Fig. 1a shows a mounting device 1 with a transport device 26, in particular a longitudinal transport device 4 in the form of a transport chain 6, in plan view. A carrier device is not shown. The attachment device 1, which is to be attached to a lifting vehicle (not shown), comprises a fork prong device 2 with at least one fork prong 3, in particular a pair of fork prongs 3. Furthermore, the fork prong 3 has at least one longitudinal transport device 4 arranged along the fork prong 3. By means of the longitudinal transport device 4, goods can be transported up and down on the fork prong 3, driven, for example, by an oil motor 11, which is arranged, for example, on an end 18 of the fork prong 3 on the lifting vehicle side. The longitudinal transport device 4 is a transport chain 6. Among other things, in order to maintain the transport effect over a longer period of time, the longitudinal transport device 4 is assigned a tensioning device 5 according to the invention, by means of which a predetermined transport tension of the longitudinal transport device 4 is to be maintained. The tensioning device 5 is arranged within the course of a conveyor chain and comprises at least one power piston 7, which has a hydraulic piston 8 as a plunger cylinder 9, by means of which the longitudinal conveyor 4 is to be held at a predetermined conveyor tension by means of pressure loading. A single-acting cylinder, such as a plunger cylinder 9, has only one piston side to which hydraulic fluid is applied. Work can only be carried out in one direction, with the return movement being carried out by an external force, e.g. a spring. A plunger cylinder 9 still has no actual piston, but the piston rod serves as a piston. A feed opening 15 is exemplified Oil is pumped from the oil motor 11 into the hydraulic piston. In this case, a check valve 13 can be passed through in the sense of a pressure holding device 12 so that the pressure that has built up can be secured. In addition, a preload valve 14 can also be provided, which ensures an oil flow only when a minimum pressure is reached. The oil flow to the oil motor 11 takes place, for example, via an oil line 17.

Fig. 1b zeigt eine Anbauvorrichtung 1 mit Transportkette 6 in Seitenansicht. Die Spanneinrichtung 5, bzw. ein Plungerzylinder 9, wird von der Transportkette 6, angetrieben durch den Ölmotor 11, beispielhaft über eine Umlenkrolleneinrichtung 27, insbesondere eine Rolleneinrichtung 22, umlaufen und spannt diese über Druckausübung, so dass immer eine sichere Funktion gewährleistet ist. Figure 1b shows a mounting device 1 with transport chain 6 in side view. The tensioning device 5, or a plunger cylinder 9, is rotated by the transport chain 6, driven by the oil motor 11, for example via a deflection roller device 27, in particular a roller device 22, and tensioned it by exerting pressure, so that a safe function is always guaranteed.

Fig. 1c zeigt einen Ausschnitt einer Anbauvorrichtung 1 mit der Transportkette 6 mit einem Kraftkolben 7, Hydraulikkolben 8, den Plungerzylinder 9. Durch die Zuführöffnung 15 wird Öl in den Zylinder gefüllt, so dass ein Druck aufgebaut werden kann. Figure 1c shows a section of a mounting device 1 with the transport chain 6 with a power piston 7, hydraulic piston 8, the plunger cylinder 9. Oil is filled into the cylinder through the feed opening 15 so that pressure can be built up.

Fig. 2a zeigt eine Anbauvorrichtung 1 mit einer Gabelzinkeneinrichtung 2 mit zumindest einer Gabelzinke 3 mit einer Transporteinrichtung 26, insbesondere einer Längstransporteinrichtung 4 in Form eines Zahnriemens 18 in Aufsicht. Die Transportspannung der Längstransporteinrichtung 4 wird durch eine Zugspannung aufrechterhalten, die durch einen Kraftkolben 7 in Form eines Differentialzylinders 10 ausgeübt wird. Die Ölzufuhr erfolgt durch eine Zuführöffnung 15 in eine erste Kammer 19. Eine zweite Kammer 20 des Differentialzylinders 10 wird beispielhaft durch Luft, angesaugt durch eine Öffnung 16, beaufschlagt, so dass nur ein geringer Gegendruck erzeugt wird. Hierbei kann ein Durchlaufen eines Rückschlagventils 13 im Sinne einer Druckhaltevorrichtung 12 vorgesehen sein, damit der aufgebaute Druck gesichert werden kann. Zudem kann noch ein Vorspannventil 14 vorgesehen sein, das einen Öldurchfluss erst bei Erreichen eines Minimaldrucks sicherstellt. Der Ölzufluss zum Ölmotor 11, der beispielhaft an einem hubfahrzeugseitigen Ende 18 der Gabelzinke 3 angeordnet ist, erfolgt beispielhaft über eine Ölleitung 17. Fig. 2a shows a mounting device 1 with a fork prong device 2 with at least one fork prong 3 with a transport device 26, in particular a longitudinal transport device 4 in the form of a toothed belt 18 in a plan view. The transport tension of the longitudinal transport device 4 is maintained by a tensile stress which is exerted by a power piston 7 in the form of a differential cylinder 10. The oil is supplied through a supply opening 15 into a first chamber 19. A second chamber 20 of the differential cylinder 10 is acted upon, for example, by air, sucked in through an opening 16, so that only a small counter pressure is generated. In this case, a check valve 13 can be passed through in the sense of a pressure holding device 12 so that the pressure that has built up can be secured. In addition, a preload valve 14 can also be provided, which ensures an oil flow only when a minimum pressure is reached. The oil inflow to the oil motor 11, which is arranged, for example, on an end 18 of the fork prong 3 on the lifting vehicle side, takes place, for example, via an oil line 17.

Fig. 2b zeigt eine Anbauvorrichtung 1 mit einer Gabelzinke 3 und einer Längstransporteinrichtung 4 mit Zahnriemen 18 in Seitenansicht. Die Spanneinrichtung 5 weist einen Differentialzylinder 10 und eine Umlenkrolleneinrichtung 27, insbesondere eine Rolleneinrichtung 21, zum Ablaufen des Zahnriemens 18 auf. Figure 2b shows a mounting device 1 with a fork prong 3 and a longitudinal transport device 4 with toothed belt 18 in a side view. The tensioning device 5 has a differential cylinder 10 and a deflection roller device 27, in particular a roller device 21, for unwinding the toothed belt 18.

Fig. 2c zeigt einen Ausschnitt einer Anbauvorrichtung 1 mit einem Kraftkolben in Form eines Differentialzylinders 10, der eine erste Kammer 19 aufweist, die beispielhaft über eine Zuführöffnung 15 mit Öl gefüllt wird und eine zweite Kammer 20, die beispielhaft mit Luft beispielhaft unter Normaldruck gefüllt wird. Der Kraftkolben 7 übt eine Zugspannung auf die Längstransporteinrichtung 4 aus und hält sie somit unter Transportspannung. Figure 2c shows a section of an attachment 1 with a power piston in the form of a differential cylinder 10, which has a first chamber 19, which is filled with oil, for example via a feed opening 15, and a second chamber 20, which is filled with air, for example, under normal pressure. The power piston 7 exerts a tensile stress on the longitudinal transport device 4 and thus keeps it under transport stress.

Fig. 3 zeigt eine Trägervorrichtung 25 mit einer Transporteinrichtung 26 in perspektivischer Ansicht. Die Transporteinrichtung 26 weist beispielhaft zwei Antriebsketten 24 auf, die über jeweils einen Ölmotor 11 angetrieben werden. Eine nicht dargestellte Anbauvorrichtung wird an eine Trägervorrichtung 25 angeordnet und kann dann seitlich durch ein Verfahrelement 28, das mit einer Antriebskette 24 verbunden ist, verfahren werden. Eine oder beide Antriebsketten 24 werden mittels einer Spanneinrichtung 5 umfassend insbesondere eine Umlenkrolleneinrichtung 27 bei einer vorbestimmten Spannung gehalten, so dass ein sicheres und zuverlässiges Verfahren gegeben ist. Fig. 3 shows a carrier device 25 with a transport device 26 in a perspective view. The transport device 26 has, for example, two drive chains 24 which are each driven by an oil motor 11. A mounting device, not shown, is arranged on a carrier device 25 and can then be moved laterally by a moving element 28 which is connected to a drive chain 24. One or both drive chains 24 are held at a predetermined tension by means of a tensioning device 5 including, in particular, a deflection roller device 27, so that a safe and reliable method is provided.

BEZUGSZEICHENLISTEREFERENCE LIST

11
AnbauvorrichtungAttachment device
22
GabelzinkeneinrichtungFork device
33
GabelzinkeFork prong
44th
LängstransporteinrichtungLongitudinal transport device
55
SpanneinrichtungClamping device
66th
TransportketteTransport chain
77th
KraftkolbenPower piston
88th
HydraulikkolbenHydraulic piston
99
PlungerzylinderPlunger cylinder
1010
DifferentialzylinderDifferential cylinder
1111th
ÖlmotorOil engine
1212th
DruckhalteeinrichtungPressure holding device
1313th
Rückschlagventilcheck valve
1414th
VorspannventilPreload valve
1515th
ZuführöffnungFeed opening
1616
Öffnungopening
1717th
ÖlleitungOil pipe
1818th
ZahnriemenTiming belt
1919th
Kammerchamber
2020th
Kammerchamber
2121
RolleneinrichtungRoller device
2222nd
RolleneinrichtungRoller device
2323
Einrichtung zum Antrieb für eine seitliche BewegungDevice for driving a lateral movement
2424
AntriebsketteDrive chain
2525th
TrägervorrichtungCarrier device
2626th
TransporteinrichtungTransport device
2727
UmlenkrolleneinrichtungPulley device
2828
VerfahrelementMoving element

Claims (10)

  1. Carrier device (25), which can be attached to a lifting vehicle, with an attachment device (1), with a fork- toe device (2) comprising at least one fork (3), in particular a pair of forks (3), with at least one transport device (26) with a chain drive arranged as a drive chain (24), for driving a lateral movement of the attachment device (1), and with a longitudinal transport device (4) arranged for longitudinal transport of goods along the at least one fork (3), wherein the longitudinal transport device (4) comprises a transport chain (6), wherein the transport device (26) has at least one tensioning device (5) for the drive chain (24), in particular for a deflection roller device (27), the tensioning device (5) comprising at least one power piston (7), namely a hydraulic piston (8), by means of which the tensioning device (5) is to be maintained at a predetermined tension, wherein either the power piston (7) is a plunger cylinder (9) wherein the tension of the transport device (26) is to be maintained on the tensioning device (5) by compressive force of the plunger cylinder (9), or the power piston (7) is a differential cylinder (10), wherein the tension of the transport device (26) is to be maintained on the tensioning device (5) by tensile force of the differential cylinder (10).
  2. Carrier device according to claim 1, characterized in that the transport device (26) has two clamping devices (5), in particular the device (23) for driving for a lateral movement of the attachment device (1), two drive chains (24), in particular arranged to run in opposite directions.
  3. Carrier device according to one of the claims 1 to 2, characterized in that the hydraulic piston is supplied with oil by an oil motor (11) which is associated with the transport device (26), in particular the clamping device (5).
  4. Carrier device according to one of claims 1 to 3, characterized in that the pressure generated in the power piston (7) is held by a pressure holding device (12), in particular a check valve (13).
  5. Carrier device according to one of claims 1 to 4, characterized in that a preloading valve (14) is provided upstream of at least one force piston, in particular the preloading valve (14) is provided in combination with a check valve (13).
  6. Carrier device according to one of claims 1 to 5, characterized in that a pressure relief valve is provided, via which oil can escape from the power piston (7), in particular in the event of an average.
  7. Carrier device according to one of claims 1 to 6, characterized in that the tensioning device (5) comprises two power pistons (7), in particular hydraulic pistons.
  8. Method for actuating a carrier device (25) according to one of claims 1 to 7, which is to be attached to a lifting vehicle, with an attachment device (1), with at least one fork (3) transport device (26) with a belt drive and/or a chain drive, with a tensioning device (5), wherein the transport device (26) is acted upon by means of a power piston (7), namely a plunger cylinder (9) and/or a differential cylinder (10), with a tensioning force, in particular a compressive force and/or a tensile force, which is set up proportionally to the transport tension of the transport device (26), with a drive chain.
  9. Method according to claim 8, characterized in that the pressure generated at the power piston is held by a pressure holding device (12), in particular a check valve (13).
  10. Method according to any of the claims 8 to 9, characterized in that the transport device (26) is shortened by an adapted predetermined length after a predetermined longitudinal elongation, in particular due to the use of the transport device (26).
EP15744099.1A 2014-05-14 2015-05-14 Carrier device, which is to be fixed on a lifting vehicle and method for actuating said hitch assembly Active EP3142958B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014006969.9A DE102014006969A1 (en) 2014-05-14 2014-05-14 Carrier device to be mounted on a lifting vehicle, and method for actuating a carrier device
PCT/DE2015/000233 WO2015172764A1 (en) 2014-05-14 2015-05-14 Support device which is to be attached to a lifting vehicle, and method for actuating said support device

Publications (2)

Publication Number Publication Date
EP3142958A1 EP3142958A1 (en) 2017-03-22
EP3142958B1 true EP3142958B1 (en) 2021-11-17

Family

ID=53761156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15744099.1A Active EP3142958B1 (en) 2014-05-14 2015-05-14 Carrier device, which is to be fixed on a lifting vehicle and method for actuating said hitch assembly

Country Status (3)

Country Link
EP (1) EP3142958B1 (en)
DE (2) DE102014006969A1 (en)
WO (1) WO2015172764A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663443A (en) * 1951-04-18 1953-12-22 Baker Raulang Co Carrier for industrial elevating trucks
US3096896A (en) * 1961-05-04 1963-07-09 Desmond H Norton Attachment for forklift trucks
US5839873A (en) * 1996-03-28 1998-11-24 Hk Systems, Inc. Storage and retrieval machine with pre-tensioned shuttle guides
JP3380174B2 (en) * 1998-09-04 2003-02-24 Ｔｃｍ株式会社 Side fork type transfer vehicle
NL1028078C2 (en) * 2005-01-20 2006-07-21 Meijer St Jabik B V Geb Transport device such as a forklift truck, with a lifting platform provided with a conveyor.
DE102008022322B4 (en) * 2008-04-30 2014-10-09 SSI Schäfer AG Lifting mechanism for a shuttle of a channel warehouse, as well as shuttle and shuttle channel storage
WO2012010160A2 (en) * 2010-07-16 2012-01-26 Kaup Gmbh & Co. Kg - Gesellschaft Für Maschinenbau Add-on device to be attached to a lifting vehicle, and method for operating said add-on device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE112015002226A5 (en) 2017-02-09
EP3142958A1 (en) 2017-03-22
WO2015172764A1 (en) 2015-11-19
DE102014006969A1 (en) 2015-11-19

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