EP2072454B1 - Industrial truck with a lifting device and a trailer device - Google Patents

Industrial truck with a lifting device and a trailer device Download PDF

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Publication number
EP2072454B1
EP2072454B1 EP20080018400 EP08018400A EP2072454B1 EP 2072454 B1 EP2072454 B1 EP 2072454B1 EP 20080018400 EP20080018400 EP 20080018400 EP 08018400 A EP08018400 A EP 08018400A EP 2072454 B1 EP2072454 B1 EP 2072454B1
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EP
European Patent Office
Prior art keywords
load
industrial truck
truck according
fork
carrier
Prior art date
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Application number
EP20080018400
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German (de)
French (fr)
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EP2072454A3 (en
EP2072454A2 (en
Inventor
Albert Gobyn
Frank Dr. Schepp
Udo Supp
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STILL SAS
Original Assignee
STILL SAS
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Publication date
Priority claimed from DE102008036411A external-priority patent/DE102008036411A1/en
Application filed by STILL SAS filed Critical STILL SAS
Publication of EP2072454A2 publication Critical patent/EP2072454A2/en
Publication of EP2072454A3 publication Critical patent/EP2072454A3/en
Application granted granted Critical
Publication of EP2072454B1 publication Critical patent/EP2072454B1/en
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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
    • B66F9/16—Platforms; Forks; Other load supporting or gripping members inclinable relative to mast
    • 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
    • B66F9/07504—Accessories, e.g. for towing, charging, locking

Definitions

  • the invention relates to an industrial truck with a lifting device comprising a load carrier which can be moved up and down, which is provided with a fork-shaped load-receiving means, wherein the load-receiving means has at least one load section, which is pivotally mounted about a substantially horizontal pivot axis.
  • the intra-company transport of goods and material flow in particular the supply of material to production lines in production plants, is usually carried out by means of trailers on which the goods to be transported are transported, in particular by means of pallets within the production plant.
  • tractor forklifts For pulling one or more of these trailers trained as a tractor forklifts are used, which are provided with a corresponding Anhlindvorraum to which one or more trailers can be attached.
  • Such tractors have compact dimensions, whereby the transport trailer can be safely transported within a production plant on cramped transport routes.
  • For loading and unloading of the trailers designed as a forklift trucks are used, which are provided with a lifting device, such as a mast, on which a forks provided with fork carriage up and down is arranged.
  • Forklift trucks are usually provided with a hitch on the opposite mast area.
  • a lifting device such as a mast
  • Forklift trucks are usually provided with a hitch on the opposite mast area.
  • GB 1 200 736 A is designed as a forklift truck known, which has a mast with a liftable and lowerable fork carriage on which a fork formed by two forks is arranged.
  • the forks have load sections which are pivotable from a horizontal working position to a vertical inoperative position.
  • the GB 1 200 736 also mentions that a towing operation is possible with the forklift.
  • the present invention has for its object to provide an industrial truck with which the in-house goods transport and material flow in a simple manner and with little effort is feasible.
  • the truck is provided with a hitch for transporting trailers, which is arranged on the load carrier.
  • an industrial truck is thus provided which is provided with a trailer device for pulling trailers and in which the fork-shaped load-receiving means arranged on the lifting device has foldable load sections.
  • a truck is provided in a simple manner, on the one hand has the function of a tractor, due to the folding load sections of the load-receiving device compact dimensions of the truck in the vehicle longitudinal direction when pulling one or more trailers are achieved, and on the other hand has the function of a forklift, with which the trailers can be loaded and unloaded.
  • the towing device can be arranged on the load carrier between the corresponding foldable load sections in a simple manner, wherein by means of the load carrier in a simple way, a height adjustment of the hitch is achieved.
  • the towing device is thus arranged in the region of the lifting device.
  • the truck according to the invention can be derived in a simple manner from an existing forklift or an existing tractor.
  • the hitch can be rigidly mounted on the truck. Particular advantages arise when the hitch is adjustable in height.
  • the height adjustment can be done manually or automatically, for example, electrically or hydraulically.
  • the load portion of the load receiving means between a horizontal position and a vertical position is pivotable.
  • the truck according to the invention thus has the function of a forklift for loading and unloading the transport trailer.
  • the truck according to the invention When folded in the vertical position load sections of the lifting device, the truck according to the invention has the function of a tractor with compact dimensions in the vehicle longitudinal direction, by means of which arranged in the lifting device hitch the transport trailer can be safely pulled within a production operation on cramped transport routes.
  • the load section of the load-receiving means by means of an auxiliary power device, in particular a hydraulic cylinder, is pivotable.
  • an auxiliary power device results in relation to manually folding load sections of the lifting device, a quick change of the truck between the function of a forklift and the function of a tractor.
  • the load portion of the load receiving means by means of the auxiliary power device is pivotable from a driver's seat, there is still a safe and easy operation of the truck according to the invention when unfolding and folding the load sections of the lifting device.
  • the truck has an electric drive system, wherein the driver's seat is arranged between a provided with a steerable drive wheel front drive part and a rear-side frame portion, wherein the truck is provided in the region of the rear-side frame portion with load rollers.
  • This construction of the truck according to the invention corresponds to the typical construction of a tractor, whereby the truck according to the invention can be derived in a simple manner from an existing tractor.
  • Such a truck has a short wheelbase and thus allows in the function as a tractor with vertically folded load sections of the load-bearing device compact dimensions of the truck.
  • a battery compartment for receiving a power supply device in particular a battery block, may be arranged on the rear-side frame section.
  • a battery compartment for receiving a power supply device in particular a battery block, is arranged in the region of the drive part.
  • the lifting device provided with the folding load sections and the hitch device is arranged in the region of the rear-side frame section.
  • the lifting device drive part With the arranged in the battery compartment power supply the function of a counterweight, whereby a safe loading and unloading of the trolley is made possible.
  • the lifting device and / or the hitch in the region of the drive part.
  • the battery compartment thus acts as counterweight in the function of the truck as a forklift.
  • the lifting device on a stationary stationary mast, in which the load carrier by means of a lifting drive, in particular a hydraulic cylinder, is arranged up and down movable.
  • a lifting drive in particular a hydraulic cylinder
  • Such a lifting device has a low construction cost and allows a simple way a lifting height to load and unload the towed with the truck transport trailer.
  • the driver's seat of the truck according to the invention is designed according to a preferred embodiment of the invention as a standing platform for a standing operator.
  • a platform platform driver compact dimensions of the truck in the vehicle longitudinal direction can be achieved.
  • a low entry height for the operator can be achieved with a trained as a stand platform driver, the truck has good ergonomics.
  • the truck according to the invention has a total width of at most 900mm, preferably of at most 800mm. This corresponds to the typical width of a tractor from which the truck according to the invention is derived.
  • load sections of the load handling the truck according to the invention has a total length of at most 1800mm, preferably of at most 1700mm, a compact truck is achieved, the in-house goods transport and material flow, especially the supply of material to production lines in production plants, on cramped transport routes and the Loading and unloading of trailers on cramped loading or unloading allows.
  • the truck according to the invention has an entry height of at most 150 mm, preferably of at most 135 mm, results in a favorable ergonomics with a slight entry and exit of the operator.
  • the truck according to the invention furthermore has a maximum lifting height of 1250 mm.
  • a lifting height can be achieved with a mast, which is formed by a stationary mast and arranged in a mast load carrier, with low construction costs, with this lifting the loading and unloading of the trailer is made possible.
  • the load carrier is designed as a fork carrier, are pivotally mounted on the two laterally spaced folding load sections of the load receiving means.
  • the load carrier is designed as a fork carriage and the load-receiving means formed by two laterally spaced forks, each having a fork back, on which a load portion is pivotally mounted and with which the fork prong is attachable to the fork carriage.
  • the fork-shaped load-receiving means is thus formed by two forks, each having a hinged load portion which is pivotally mounted on the fork back, the forks are attached by means of the fork back to the load carrier designed as a fork carrier.
  • the lateral distance of the two load sections can be further changed in a simple manner to achieve an adaptation of the fork-shaped load handling device to different carriers, such as pallets, roll containers or small parts container.
  • FIG. 1 an inventive truck 1 is shown in a perspective view.
  • the truck 1 seen in the vehicle longitudinal direction on a front-side drive part 2, in which at least one steerable drive wheel 3 is arranged.
  • the truck 1 according to the invention has an electrical Drive system and includes a arranged in the drive part 2 and not shown, with the drive wheel 3 in operative connection electric traction drive motor and steering motor.
  • a power electronics unit and a service brake can be arranged in the drive part 2 or adjacent to the drive part 2, a battery compartment 6 is arranged, in which a power supply device of the electric drive system can be arranged, for example a battery pack.
  • the truck 1 a driver's seat 4, which is formed by a standing platform 5. Adjacent to the driver's seat 4, a rear-side frame portion 25 is formed, which is provided with load rollers 7.
  • a handlebar-like operating arrangement 8 is provided, which is arranged on the upper side of the drive part 2.
  • the truck according to the invention is provided with a lifting device 9.
  • the lifting device 9 is designed as a mast with a stationary stationary mast 10, the two spaced in the vehicle transverse direction and vertically arranged upright mast sections 10 a, 10 b, which are attached, for example, to the rear-side frame portion 25.
  • the upright mast sections 10a, 10b designed as a plate-shaped fork carrier load carrier 11 is arranged by means of not shown guide rollers up and down movable.
  • a lifting drive 12 designed for example as a lifting cylinder, is provided, which is connected to the load carrier 11 by means of a lifting means 13, for example a lifting chain.
  • the load carrier 11 serves to receive a fork-shaped load-receiving means 14, which in the embodiment of the FIG. 1 is formed by two laterally spaced forks.
  • the two forks each have a vertical fork back 14a, by means of which the forks can be fastened to the carrier 11 designed as a fork carrier.
  • the forks also each have a load section 14b, which according to the invention is pivotably mounted about a substantially horizontal pivot axis 15 on the fork back 14a.
  • the two forks can here be arranged laterally displaceable by means of the fork back 14a on the trained as a fork carrier load carrier 11.
  • the load sections 14b may be formed on the fork back 14a of the corresponding fork a bearing bore for a pivot axis 15 forming the bearing pin, wherein the load portion 14b is provided with a fork-shaped extension which form corresponding receptacles for the bearing pin.
  • the load section 14b is in this case by means of an example designed as a hydraulic cylinder 17 auxiliary power means 16 between a in the FIG. 2 shown with solid lines horizontal position and one in the FIG. 2 Swiveling shown with dashed lines vertical position.
  • the trained as a hydraulic cylinder 17 auxiliary power device 16 is in this case for example, with a cylinder tube 17a attached to the corresponding fork back 14a and communicates with a retractable and retractable piston rod 17b with a lever arm 18 of the load section 14b of the respective fork tine in operative connection.
  • the fork-shaped load-receiving means 14 is formed by two laterally spaced load sections 14b, which are mounted directly on the carrier formed as a fork carriage 11 pivotally.
  • a bearing bore for a bearing pin forming the pivot axis 15 may be formed on the load carrier 11, the load section 14b being provided with a fork-shaped extension which forms corresponding receptacles for the bearing pin.
  • the load sections 14b can be pivoted in a simple manner, when the piston rod of the hydraulic cylinder with the corresponding load portion 14b by means of a corresponding lever arm is in operative connection and a cylinder tube of the hydraulic cylinder is attached to the carrier formed as a fork carrier 11 , It is also possible to provide only one auxiliary power device 16, for example designed as a hydraulic cylinder, which is fastened to the load carrier 11 and is in operative connection with both load sections 14b. According to the invention is in the embodiment of FIG. 1 and the embodiment of the FIG. 2 Furthermore provided in the lifting device 9, a hitch 20 for the transport of trailers.
  • the hitch 20 in this case has a plurality of vertically spaced flange plates 21, in which a coupling pin 22 can be arranged.
  • the hitch 20 is in this case for example on the load carrier 11 between the fork back 14 a of the two forks ( FIG. 1 ) or the foldable load sections 14b of the load receiving means 14 (FIG. FIG. 2 ) arranged and fixed.
  • the towing device 20 can be manually operated or be designed as an automatic coupling device which can be actuated by means of a corresponding actuator from the driver's seat.
  • auxiliary power device 16 By means of the auxiliary power device 16 are pivotally mounted about the pivot axis 15 load portions 14b of the load receiving means 14 both in the embodiment according to the FIG. 1 as well as in the embodiment according to the FIG. 2 from in the FIG. 2 shown horizontal position in a dashed lines, vertical position pivoted.
  • one or more trailers can be attached to the hitch 20 of the truck 1 according to the invention, whereby the truck 1 according to the invention has the function of a tractor, which allows pulling of trailers with compact dimensions in the vehicle longitudinal direction and thus is suitable for transporting goods and material flow within a production plant on narrow transport routes and thus for supplying material to production lines in production plants.
  • the truck 1 In the horizontal position of the load sections 14b of the load receiving means 14, the truck 1 according to the invention has the function of a forklift, in which the drive part 2 and arranged in the battery compartment 6 battery block acts as a counterweight.
  • the lifting device 9 has in this case up and down due to the training with a stationary mast 10 and a in the stationary mast 10 arranged load carrier 11 on a sufficient lifting height to load the trailer and unload.
  • auxiliary power device 16 and the lifting drive 12 corresponding actuators, for example, provided on the operating member 8 switch provided whereby the provided with the folding load sections 14b load carrier 11 raised and lowered from the driver's seat 3 and the load sections 14b of the load receiving means 14 from the driver's seat 3 can be swung in and out.
  • the truck 1 according to the invention can thus be operated from the driver's seat 4, whereby the truck 1 according to the invention has an easy and safe operation with good ergonomics.
  • the lifting drive 12 as a lifting cylinder and the auxiliary power device 16 as a hydraulic cylinder 17, these can be supplied by an electrically driven hydraulic unit (not shown), which can be arranged in the area of the rear frame section 25 or in the drive part 2.
  • an electrically driven hydraulic unit (not shown), which can be arranged in the area of the rear frame section 25 or in the drive part 2.
  • the lifting device 9 and the hitch 20 are arranged at the rear in the region of the rear-side frame portion 25, the lifting device 9 and the hitch 20 can also be arranged in the front of the drive part 2.
  • the battery compartment 6 can likewise be arranged on the rear-side frame section 25.
  • the truck 1 according to the invention can be derived in this case in a simple manner by a tractor, according to the FIGS. 1 and 2 is provided with a drive part 2 and a rear-side frame portion 25 and an interposed driver's seat 4.

Description

Die Erfindung betrifft ein Flurförderzeug mit einer Hubeinrichtung, die einen auf- und abbewegbaren Lastträger umfasst, der mit einem gabelförmigen Lastaufnahmemittel versehen ist, wobei das Lastaufnahmemittel mindestens einen Lastabschnitt aufweist, der um eine im Wesentlichen horizontale Schwenkachse schwenkbar gelagert ist.The invention relates to an industrial truck with a lifting device comprising a load carrier which can be moved up and down, which is provided with a fork-shaped load-receiving means, wherein the load-receiving means has at least one load section, which is pivotally mounted about a substantially horizontal pivot axis.

Der innerbetrieblichen Warentransport und Materialfluss, insbesondere die Materialversorgung von Produktionslinien in Produktionsbetrieben, erfolgt in der Regel mittels Anhängern, auf denen die zu transportierenden Waren insbesondere mittels Paletten innerhalb des Produktionsbetriebes transportiert werden.The intra-company transport of goods and material flow, in particular the supply of material to production lines in production plants, is usually carried out by means of trailers on which the goods to be transported are transported, in particular by means of pallets within the production plant.

Zum Ziehen eines oder mehrerer dieser Anhänger werden als Schlepper ausgebildete Flurförderzeuge verwendet, die mit einer entsprechenden Anhängvorrichtung versehen sind, an denen ein oder mehrere Anhänger angehängt werden können. Derartige Schlepper weisen kompakte Abmessungen auf, wodurch die Transportanhänger innerhalb eines Produktionsbetriebes auf beengten Transportwegen sicher transportiert werden können.For pulling one or more of these trailers trained as a tractor forklifts are used, which are provided with a corresponding Anhängvorrichtung to which one or more trailers can be attached. Such tractors have compact dimensions, whereby the transport trailer can be safely transported within a production plant on cramped transport routes.

Zum Be- und Entladen der Anhänger werden als Gabelstapler ausgebildete Flurförderzeuge verwendet, die mit einer Hubeinrichtung, beispielsweise einem Hubmast, versehen sind, an dem ein mit Gabelzinken versehener Gabelträger auf- und abbewegbar angeordnet ist. Gabelstapler sind in der Regel an dem Hubmast gegenüberliegenden Bereich mit einer Anhängevorrichtung versehen. Aufgrund der in Fahrtrichtung nach vorne überstehenden Gabelzinken weisen derartige Gabelstapler jedoch einen hohen Platzbedarf in Fahrzeuglängsrichtung auf, wodurch derartige Gabelstapler nur bedingt zum Ziehen von Anhängern und somit zum Warentransport und Materialfluss innerhalb eines Produktionsbetriebes auf beengten Transportwegen geeignet sind.For loading and unloading of the trailers designed as a forklift trucks are used, which are provided with a lifting device, such as a mast, on which a forks provided with fork carriage up and down is arranged. Forklift trucks are usually provided with a hitch on the opposite mast area. However, because of the direction of travel forward protruding forks, such forklifts have a lot of space in the vehicle longitudinal direction, whereby such forklifts are only partially suitable for pulling trailers and thus for transporting goods and material flow within a production company on cramped transport routes.

Hierdurch werden zum innerbetrieblichen Warentransport und Materialfluss innerhalb eines Produktionsbetriebes auf beengten Transportwegen zwei Flurförderzeuge benötigt, wobei mit dem Schlepper die Transportanhänger innerhalb des Produktionsbetriebes gezogen werden können und mittels eines Gabelstaplers die Transportanhänger be- und entladen werden können.As a result, two industrial trucks are required for in-house goods transport and material flow within a production company on cramped transport routes, with the tractor, the transport trailer can be pulled within the production and can be loaded and unloaded by means of a forklift, the transport trailer.

Durch das Verwenden von zwei verschiedenen Flurförderzeugen, die zumeist von zwei Bedienpersonen bedient werden, weist somit der innerbetriebliche Warentransport und Materialfluss einen hohen Aufwand auf.By using two different industrial trucks, which are usually operated by two operators, thus, the in-house goods transport and material flow on a high effort.

Aus der GB 1 200 736 A ist ein als Gabelstapler ausgebildetes Flurförderzeug bekannt, das einen Hubmast mit einem anhebbaren und absenkbaren Gabelträger aufweist, an dem eine von zwei Gabelzinken gebildete Lastgabel angeordnet ist. Die Gabelzinken weisen Lastabschnitte auf, die von einer waagerechten Arbeitsstellung in eine senkrechte Außerbetriebsstellung verschwenkbar sind. Die GB 1 200 736 erwähnt weiterhin, dass mit dem Gabelstapler ein Zugbetrieb möglich ist.From the GB 1 200 736 A is designed as a forklift truck known, which has a mast with a liftable and lowerable fork carriage on which a fork formed by two forks is arranged. The forks have load sections which are pivotable from a horizontal working position to a vertical inoperative position. The GB 1 200 736 also mentions that a towing operation is possible with the forklift.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Flurförderzeug zur Verfügung zu stellen, mit dem der innerbetriebliche Warentransport und Materialfluss auf einfache Weise und mit geringem Aufwand durchführbar ist.The present invention has for its object to provide an industrial truck with which the in-house goods transport and material flow in a simple manner and with little effort is feasible.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Flurförderzeug mit einer Anhängevorrichtung zum Transport von Anhängern versehen ist, die an dem Lastträger angeordnet ist. Erfindungsgemäß wird somit ein Flurförderzeug zur Verfügung gestellt, das mit einer Anhängvorrichtung zum Ziehen von Anhängern versehen ist und bei dem das an der Hubeinrichtung angeordnete gabelförmige Lastaufnahmemittel klappbare Lastabschnitte aufweist. Hierdurch wird auf einfache Weise ein Flurförderzeug zur Verfügung gestellt, das einerseits die Funktion eines Schleppers aufweist, wobei aufgrund der klappbaren Lastabschnitte des Lastaufnahmemittels kompakte Abmessungen des Flurförderzeugs in Fahrzeuglängsrichtung beim Ziehen eines oder mehrerer Anhänger erzielt werden, und andererseits die Funktion eines Gabelstaplers aufweist, mit dem die Anhänger be- und entladen werden können. Hierdurch ist zum innerbetrieblichen Warentransport und Materialfluss, insbesondere auf beengten Transportwegen, lediglich ein erfindungsgemäßes Flurförderzeug erforderlich, das von einer Bedienperson bedient werden kann und mit dem die Transportanhänger gezogen sowie be- und entladen werden können, wodurch der innerbetriebliche Warentransport und Materialfluss auf einfache Weise und kostengünstig durchgeführt werden kann. Die Anhängevorrichtung kann an dem Lastträger zwischen den entsprechenden klappbaren Lastabschnitten auf einfache Weise angeordnet werden, wobei mittels des Lastträgers auf einfache Weise eine Höhenverstellbarkeit der Anhängevorrichtung erzielbar ist.The object is achieved in that the truck is provided with a hitch for transporting trailers, which is arranged on the load carrier. According to the invention, an industrial truck is thus provided which is provided with a trailer device for pulling trailers and in which the fork-shaped load-receiving means arranged on the lifting device has foldable load sections. As a result, a truck is provided in a simple manner, on the one hand has the function of a tractor, due to the folding load sections of the load-receiving device compact dimensions of the truck in the vehicle longitudinal direction when pulling one or more trailers are achieved, and on the other hand has the function of a forklift, with which the trailers can be loaded and unloaded. As a result, only an inventive truck is required for in-house goods transport and material flow, especially on cramped transport routes, operated by an operator can be pulled and loaded and unloaded with the transport trailer, whereby the in-house goods transport and material flow can be carried out easily and inexpensively. The towing device can be arranged on the load carrier between the corresponding foldable load sections in a simple manner, wherein by means of the load carrier in a simple way, a height adjustment of the hitch is achieved.

Die Anhängevorrichtung ist somit im Bereich der Hubeinrichtung angeordnet. Hierdurch kann das erfindungsgemäße Flurförderzeug auf einfache Weise von einem bestehenden Gabelstapler oder einem bestehenden Schlepper abgeleitet werden.The towing device is thus arranged in the region of the lifting device. As a result, the truck according to the invention can be derived in a simple manner from an existing forklift or an existing tractor.

Die Anhängevorrichtung kann starr an dem Flurförderzeug angeordnet werden. Besondere Vorteile ergeben sich, wenn die Anhängevorrichtung höhenverstellbar ist. Die Höhenverstellung kann manuell oder automatisch erfolgen, beispielsweise elektrisch oder hydraulisch.The hitch can be rigidly mounted on the truck. Particular advantages arise when the hitch is adjustable in height. The height adjustment can be done manually or automatically, for example, electrically or hydraulically.

Gemäß einer bevorzugten Ausgestaltungsform der Erfindung ist der Lastabschnitt des Lastaufnahmemittels zwischen einer horizontalen Stellung und einer vertikalen Stellung schwenkbar. In der horizontalen Stellung der Lastabschnitte des Lastaufnahmemittels weist somit das erfindungsgemäße Flurförderzeug die Funktion eines Gabelstaplers zum Be- und Entladen der Transportanhänger auf. Bei in die vertikale Stellung geklappten Lastabschnitten des Lastaufnahmemittels weist das erfindungsgemäße Flurförderzeug die Funktion eines Schleppers mit kompakten Abmessungen in Fahrzeuglängsrichtung auf, mit dem mittels der im Bereich des Hubeinrichtung angeordneten Anhängevorrichtung die Transportanhänger sicher innerhalb eines Produktionsbetriebes auf beengten Transportwegen gezogen werden können.According to a preferred embodiment of the invention, the load portion of the load receiving means between a horizontal position and a vertical position is pivotable. In the horizontal position of the load sections of the load-carrying means, the truck according to the invention thus has the function of a forklift for loading and unloading the transport trailer. When folded in the vertical position load sections of the lifting device, the truck according to the invention has the function of a tractor with compact dimensions in the vehicle longitudinal direction, by means of which arranged in the lifting device hitch the transport trailer can be safely pulled within a production operation on cramped transport routes.

Besondere Vorteile sind erzielbar, wenn gemäß einer bevorzugten Weiterbildung der Erfindung der Lastabschnitt des Lastaufnahmemittels mittels einer Hilfskrafteinrichtung, insbesondere einem Hydraulikzylinder, schwenkbar ist. Mit einer derartigen Hilfskrafteinrichtung ergibt sich gegenüber manuell klappbaren Lastabschnitten des Lastaufnahmemittels ein schneller Wechsel des Flurförderzeugs zwischen der Funktion eines Gabelstaplers und der Funktion eines Schleppers.Particular advantages can be achieved if, according to a preferred embodiment of the invention, the load section of the load-receiving means by means of an auxiliary power device, in particular a hydraulic cylinder, is pivotable. With such an auxiliary power device results in relation to manually folding load sections of the lifting device, a quick change of the truck between the function of a forklift and the function of a tractor.

Sofern gemäß einer Weiterbildung der Erfindung der Lastabschnitt des Lastaufnahmemittels mittels der Hilfskrafteinrichtung von einem Fahrerplatz aus schwenkbar ist, ergibt sich weiterhin eine sichere und leichte Bedienbarkeit des erfindungsgemäßen Flurförderzeugs beim Aus- und Einklappen der Lastabschnitte des Lastaufnahmemittels.If according to an embodiment of the invention, the load portion of the load receiving means by means of the auxiliary power device is pivotable from a driver's seat, there is still a safe and easy operation of the truck according to the invention when unfolding and folding the load sections of the lifting device.

Zweckmäßigerweise weist das Flurförderzeug ein elektrisches Antriebssystem auf, wobei der Fahrerplatz zwischen einem mit einem lenkbaren Antriebsrad versehenen frontseitigen Antriebsteil und einem heckseitigen Rahmenabschnitt angeordnet ist, wobei das Flurförderzeug im Bereich des heckseitigen Rahmenabschnitts mit Lastrollen versehen ist. Dieser Aufbau des erfindungsgemäßen Flurförderzeugs entspricht dem typischen Aufbau eines Schleppers, wodurch das erfindungsgemäße Flurförderzeug auf einfache Weise von einem bestehenden Schlepper abgeleitet werden kann. Ein derartiges Flurförderzeug weist einen kurzen Radstand auf und ermöglicht in der Funktion als Schlepper mit vertikal geklappten Lastabschnitten des Lastaufnahmemittels somit kompakte Abmessungen des Flurförderzeugs.Conveniently, the truck has an electric drive system, wherein the driver's seat is arranged between a provided with a steerable drive wheel front drive part and a rear-side frame portion, wherein the truck is provided in the region of the rear-side frame portion with load rollers. This construction of the truck according to the invention corresponds to the typical construction of a tractor, whereby the truck according to the invention can be derived in a simple manner from an existing tractor. Such a truck has a short wheelbase and thus allows in the function as a tractor with vertically folded load sections of the load-bearing device compact dimensions of the truck.

Gemäß einer Weiterbildung der Erfindung kann an dem heckseitigen Rahmenabschnitt ein Batteriefach zur Aufnahme einer Energieversorgungseinrichtung, insbesondere eines Batterieblocks, angeordnet sein.According to a development of the invention, a battery compartment for receiving a power supply device, in particular a battery block, may be arranged on the rear-side frame section.

Besondere Vorteile sind erzielbar, wenn im Bereich des Antriebsteils ein Batteriefach zur Aufnahme einer Energieversorgungseinrichtung, insbesondere eines Batterieblocks, angeordnet ist.Particular advantages can be achieved if a battery compartment for receiving a power supply device, in particular a battery block, is arranged in the region of the drive part.

Besondere Vorteile ergeben sich hierbei, wenn die mit den klappbaren Lastabschnitten und der Anhängevorrichtung versehene Hubeinrichtung im Bereich des heckseitigen Rahmenabschnitts angeordnet ist. In der Funktion des Flurförderzeugs als Gabelstapler weist somit der gegenüberliegend zur Hubeinrichtung angeordnete Antriebsteil mit der in dem Batteriefach angeordneten Energieversorgungseinrichtung die Funktion eines Gegengewichts auf, wodurch ein sicheres Be- und Entladen der Transportwagen ermöglicht wird. Es ist jedoch ebenfalls möglich, die Hubeinrichtung und/oder die Anhängevorrichtung im Bereich des Antriebsteils anzuordnen. Bei dieser Anordnung wirkt in der Funktion des Flurförderzeugs als Gabelstapler somit das Batteriefach als Gegengewicht.Particular advantages arise in this case if the lifting device provided with the folding load sections and the hitch device is arranged in the region of the rear-side frame section. In the function of the truck as a forklift thus has the opposite arranged to the lifting device drive part with the arranged in the battery compartment power supply the function of a counterweight, whereby a safe loading and unloading of the trolley is made possible. However, it is also possible to arrange the lifting device and / or the hitch in the region of the drive part. In this arrangement, the battery compartment thus acts as counterweight in the function of the truck as a forklift.

Zweckmäßigerweise weist die Hubeinrichtung einen feststehenden Standmast auf, in dem der Lastträger mittels eines Hubantriebs, insbesondere eines Hydraulikzylinders, auf- und abbewegbar angeordnet ist. Eine derartige Hubeinrichtung weist einen geringen Bauaufwand auf und ermöglicht auf einfache Weise eine Hubhöhe, um die mit dem Flurförderzeug gezogenen Transportanhänger zu be- und entladen.Conveniently, the lifting device on a stationary stationary mast, in which the load carrier by means of a lifting drive, in particular a hydraulic cylinder, is arranged up and down movable. Such a lifting device has a low construction cost and allows a simple way a lifting height to load and unload the towed with the truck transport trailer.

Der Fahrerplatz des erfindungsgemäßen Flurförderzeugs ist gemäß einer bevorzugten Ausführungsform der Erfindung als Standplattform für eine stehende Bedienperson ausgebildet. Durch einen als Standplattform ausgebildeten Fahrerplatz sind kompakte Abmessungen des Flurförderzeugs in Fahrzeuglängsrichtung erzielbar. Zudem ist bei einem als Standplattform ausgebildeten Fahrerplatz eine geringe Einstiegshöhe für die Bedienperson erzielbar, wobei das Flurförderzeug eine gute Ergonomie aufweist.The driver's seat of the truck according to the invention is designed according to a preferred embodiment of the invention as a standing platform for a standing operator. By designed as a platform platform driver compact dimensions of the truck in the vehicle longitudinal direction can be achieved. In addition, a low entry height for the operator can be achieved with a trained as a stand platform driver, the truck has good ergonomics.

Das erfindungsgemäße Flurförderzeug weist eine Gesamtbreite von höchstens 900mm, vorzugsweise von höchstens 800mm. Dies entspricht der typischen Breite eines Schleppers, von dem das erfindungsgemäße Flurförderzeug abgeleitet ist.The truck according to the invention has a total width of at most 900mm, preferably of at most 800mm. This corresponds to the typical width of a tractor from which the truck according to the invention is derived.

Sofern bei in horizontaler Stellung befindlichen Lastabschnitten des Lastaufnahmemittels das erfindungsgemäße Flurförderzeug eine Gesamtlänge von höchstens 1800mm, vorzugsweise von höchstens 1700mm aufweist, wird ein kompaktes Flurförderzeug erzielt, das den innerbetrieblichen Warentransport und Materialfluss, insbesondere die Materialversorgung von Produktionslinien in Produktionsbetrieben, auf beengten Transportwegen und das Be- und Entladen der Anhänger an beengten Lade- oder Entladestellen ermöglicht.Provided that located in the horizontal position load sections of the load handling the truck according to the invention has a total length of at most 1800mm, preferably of at most 1700mm, a compact truck is achieved, the in-house goods transport and material flow, especially the supply of material to production lines in production plants, on cramped transport routes and the Loading and unloading of trailers on cramped loading or unloading allows.

Sofern das erfindungsgemäße Flurförderzeug eine Einstiegshöhe von höchstens 150mm, vorzugsweise von höchstens 135mm aufweist, ergibt sich eine günstige Ergonomie mit einem leichten Ein- und Ausstieg der Bedienperson.If the truck according to the invention has an entry height of at most 150 mm, preferably of at most 135 mm, results in a favorable ergonomics with a slight entry and exit of the operator.

Das erfindungsgemäße Flurförderzeug weist weiterhin eine maximale Hubhöhe von 1250mm auf. Eine derartige Hubhöhe kann mit einem Hubgerüst, das von einem Standmast und einem im Standmast angeordneten Lastträger gebildet ist, mit geringem Bauaufwand erzielt werden, wobei mit dieser Hubhöhe das Be- und Entladen der Anhänger ermöglicht wird.The truck according to the invention furthermore has a maximum lifting height of 1250 mm. Such a lifting height can be achieved with a mast, which is formed by a stationary mast and arranged in a mast load carrier, with low construction costs, with this lifting the loading and unloading of the trailer is made possible.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist der Lastträger als Gabelträger ausgebildet, an dem zwei seitlich beabstandete klappbare Lastabschnitte des Lastaufnahmemittels schwenkbar gelagert sind. Hierdurch wird ein geringer Bauaufwand erzielt, da die beiden klappbaren Lastabschnitte, die das gabelförmige Lastaufnahmemittel bilden, direkt an dem als Gabelträger ausgebildeten Lastträger schwenkbar gelagert sind.According to a preferred embodiment of the invention, the load carrier is designed as a fork carrier, are pivotally mounted on the two laterally spaced folding load sections of the load receiving means. As a result, a low construction cost is achieved because the two folding load sections that form the fork-shaped load-receiving means, are mounted directly on the load carrier designed as a fork carrier.

Gemäß einer weiteren Ausführungsform der Erfindung ist der Lastträger als Gabelträger ausgebildet und das Lastaufnahmemittel von zwei seitlich beabstandeten Gabelzinken gebildet, die jeweils einen Gabelrücken aufweisen, an dem ein Lastabschnitt schwenkbar gelagert ist und mit dem die Gabelzinke an dem Gabelträger befestigbar ist. Das gabelförmige Lastaufnahmemittel wird somit von zwei Gabelzinken gebildet, die jeweils einen klappbaren Lastabschnitt aufweisen, der an dem Gabelrücken schwenkbar gelagert, wobei die Gabelzinken mittels der Gabelrücken an dem als Gabelträger ausgebildeten Lastträger befestigt sind. Mit derartigen klappbaren Gabelzinken, die beispielsweise an dem Gabelträger seitlich verschiebbar befestigt sein können, kann weiterhin der seitliche Abstand der beiden Lastabschnitte auf einfache Weise verändert werden, um eine Anpassung des gabelförmigen Lastaufnahmemittels an unterschiedliche Ladungsträger, beispielsweise Paletten, Rollcontainer oder Kleinteilebehälter zu erzielen.According to a further embodiment of the invention, the load carrier is designed as a fork carriage and the load-receiving means formed by two laterally spaced forks, each having a fork back, on which a load portion is pivotally mounted and with which the fork prong is attachable to the fork carriage. The fork-shaped load-receiving means is thus formed by two forks, each having a hinged load portion which is pivotally mounted on the fork back, the forks are attached by means of the fork back to the load carrier designed as a fork carrier. With such folding forks, which may be laterally slidably mounted, for example, on the fork carriage, the lateral distance of the two load sections can be further changed in a simple manner to achieve an adaptation of the fork-shaped load handling device to different carriers, such as pallets, roll containers or small parts container.

Weitere Vorteile und Einzelheiten der Erfindung werden anhand der in den schematischen Figuren dargestellten Ausführungsbeispiele näher erläutert. Hierbei zeigen

Figur 1
eine erste Ausführungsform eines erfindungsgemäßen Flurförderzeugs in einer perspektivischen Ansicht und
Figur 2
eine zweite Ausführungsform des erfindungsgemäßen Flurförderzeugs in einer Seitenansicht.
Further advantages and details of the invention will be explained in more detail with reference to the embodiments illustrated in the schematic figures. Show here
FIG. 1
a first embodiment of a truck according to the invention in a perspective view and
FIG. 2
a second embodiment of the truck according to the invention in a side view.

In der Figur 1 ist ein erfindungsgemäßes Flurförderzeug 1 in einer perspektivischen Ansicht dargestellt. Das Flurförderzeug 1 weist in Fahrzeuglängsrichtung gesehen einen frontseitigen Antriebsteil 2 auf, in dem zumindest ein lenkbares Antriebsrad 3 angeordnet ist. Das erfindungsgemäße Flurförderzeug 1 weist ein elektrisches Antriebssystem auf und umfasst einem in dem Antriebsteil 2 angeordneten und nicht mehr dargestellten, mit dem Antriebsrad 3 in Wirkverbindung stehenden elektrischer Fahrantriebsmotor und Lenkmotor. In dem Antriebsteil 2 können weiterhin eine Leistungselektronikeinheit und eine Betriebsbremse angeordnet werden. In dem Antriebsteil 2 oder angrenzend an das Antriebsteil 2 ist ein Batteriefach 6 angeordnet, in dem eine Energieversorgungseinrichtung des elektrischen Antriebssystems angeordnet werden kann, beispielsweise ein Batterieblock.In the FIG. 1 an inventive truck 1 is shown in a perspective view. The truck 1, seen in the vehicle longitudinal direction on a front-side drive part 2, in which at least one steerable drive wheel 3 is arranged. The truck 1 according to the invention has an electrical Drive system and includes a arranged in the drive part 2 and not shown, with the drive wheel 3 in operative connection electric traction drive motor and steering motor. In the drive part 2, furthermore, a power electronics unit and a service brake can be arranged. In the drive part 2 or adjacent to the drive part 2, a battery compartment 6 is arranged, in which a power supply device of the electric drive system can be arranged, for example a battery pack.

Anschließend an das Antriebsteil 2 und das Batteriefach 6 weist das Flurförderzeug 1 einen Fahrerplatz 4 auf, der von einer Standplattform 5 gebildet ist. Angrenzend an den Fahrerplatz 4 ist ein heckseitiger Rahmenabschnitt 25 ausgebildet, der mit Lastrollen 7 versehen ist.Subsequent to the drive part 2 and the battery compartment 6, the truck 1 a driver's seat 4, which is formed by a standing platform 5. Adjacent to the driver's seat 4, a rear-side frame portion 25 is formed, which is provided with load rollers 7.

Zur Bedienung des Flurförderzeugs 1 ist eine lenkerähnliche Bedienanordnung 8 vorgesehen, die an der Oberseite des Antriebsteils 2 angeordnet ist.For operating the truck 1, a handlebar-like operating arrangement 8 is provided, which is arranged on the upper side of the drive part 2.

An dem heckseitigen Rahmenabschnitt 25 oder angrenzend an den heckseitigen Rahmenabschnitt 25 ist das erfindungsgemäße Flurförderzeug mit einer Hubeinrichtung 9 versehen. Die Hubeinrichtung 9 ist als Hubgerüst mit einem feststehenden Standmast 10 ausgebildet, der zwei in Fahrzeugquerrichtung beabstandete und vertikal angeordnete Standmastprofile 10a, 10b aufweist, die beispielsweise an dem heckseitigen Rahmenabschnitt 25 befestigt sind. In den Standmastprofilen 10a, 10b ist ein als plattenförmiger Gabelträger ausgebildeter Lastträger11 mittels nicht mehr dargestellter Führungsrollen auf- und abbewegbar angeordnet. Zum Anheben und Absenken des Lastträgers 11 ist ein beispielsweise als Hubzylinder ausgebildeter Hubantrieb 12 vorgesehen, der mittels eines Hubmittels 13, beispielsweise einer Hubkette, mit dem Lastträger 11 verbunden ist.At the rear frame portion 25 or adjacent to the rear frame portion 25, the truck according to the invention is provided with a lifting device 9. The lifting device 9 is designed as a mast with a stationary stationary mast 10, the two spaced in the vehicle transverse direction and vertically arranged upright mast sections 10 a, 10 b, which are attached, for example, to the rear-side frame portion 25. In the upright mast sections 10a, 10b designed as a plate-shaped fork carrier load carrier 11 is arranged by means of not shown guide rollers up and down movable. To raise and lower the load carrier 11, a lifting drive 12, designed for example as a lifting cylinder, is provided, which is connected to the load carrier 11 by means of a lifting means 13, for example a lifting chain.

Der Lastträger 11 dient zur Aufnahme eines gabelförmigen Lastaufnahmemittels 14, das bei der Ausführungsform der Figur 1 von zwei seitlich beabstandeten Gabelzinken gebildet ist. Die beiden Gabelzinken weisen jeweils einen vertikalen Gabelrücken 14a auf, mittels dem die Gabelzinken an dem als Gabelträger ausgebildeten Lastträger 11 befestigbar sind. Die Gabelzinken weisen weiterhin jeweils einen Lastabschnitt 14b auf, der erfindungsgemäß um eine im Wesentlichen horizontale Schwenkachse 15 an dem Gabelrücken 14a schwenkbar gelagert ist. Die beiden Gabelzinken können hierbei mittels der Gabelrücken 14a an dem als Gabelträger ausgebildeten Lastträger 11 seitlich verschiebbar angeordnet sein.The load carrier 11 serves to receive a fork-shaped load-receiving means 14, which in the embodiment of the FIG. 1 is formed by two laterally spaced forks. The two forks each have a vertical fork back 14a, by means of which the forks can be fastened to the carrier 11 designed as a fork carrier. The forks also each have a load section 14b, which according to the invention is pivotably mounted about a substantially horizontal pivot axis 15 on the fork back 14a. The two forks can here be arranged laterally displaceable by means of the fork back 14a on the trained as a fork carrier load carrier 11.

Zum Verschwenken der Lastabschnitte 14b kann an dem Gabelrücken 14a der entsprechenden Gabelzinke eine Lagerbohrung für einen die Schwenkachse 15 bildenden Lagerbolzen ausgebildet sein, wobei der Lastabschnitt 14b mit einer gabelförmige Erweiterung versehen ist, die entsprechende Aufnahmen für den Lagerbolzen bilden.For pivoting the load sections 14b may be formed on the fork back 14a of the corresponding fork a bearing bore for a pivot axis 15 forming the bearing pin, wherein the load portion 14b is provided with a fork-shaped extension which form corresponding receptacles for the bearing pin.

Der Lastabschnitt 14b ist hierbei mittels einer beispielsweise als Hydraulikzylinder 17 ausgebildeten Hilfskrafteinrichtung 16 zwischen einer in der Figur 2 mit durchgezogenen Linien dargestellten horizontalen Stellung und einer in der Figur 2 mit gestrichelten Linien dargestellten vertikalen Stellung schwenkbar.The load section 14b is in this case by means of an example designed as a hydraulic cylinder 17 auxiliary power means 16 between a in the FIG. 2 shown with solid lines horizontal position and one in the FIG. 2 Swiveling shown with dashed lines vertical position.

Die als Hydraulikzylinder 17 ausgebildete Hilfskrafteinrichtung 16 ist hierbei beispielsweise mit einem Zylinderrohr 17a an dem entsprechenden Gabelrücken 14a befestigt und steht mit einer aus- und einfahrbaren Kolbenstange 17b mit einem Hebelarm 18 des Lastabschnitts 14b der jeweiligen Gabelzinke in Wirkverbindung.The trained as a hydraulic cylinder 17 auxiliary power device 16 is in this case for example, with a cylinder tube 17a attached to the corresponding fork back 14a and communicates with a retractable and retractable piston rod 17b with a lever arm 18 of the load section 14b of the respective fork tine in operative connection.

Bei der in der Figur 2 dargestellten Ausführungsform der Erfindung ist das gabelförmige Lastaufnahmemittel 14 von zwei seitlich beabstandeten Lastabschnitten 14b gebildet, die direkt an dem als Gabelträger ausgebildeten Lastträger 11 schwenkbar befestigt sind. Zum Verschwenken der Lastabschnitte 14b kann hierbei an dem Lastträger 11 jeweils eine Lagerbohrung für einen die Schwenkachse 15 bildenden Lagerbolzen ausgebildet sein, wobei der Lastabschnitt 14b mit einer gabelförmige Erweiterung versehen ist, die entsprechende Aufnahmen für den Lagerbolzen bilden. Sofern die Hilfskrafteinrichtung 16 als Hydraulikzylinder ausgebildet ist, können die Lastabschnitte 14b auf einfache Weise verschwenkt werden, wenn die Kolbenstange des Hydraulikzylinders mit dem entsprechenden Lastabschnitt 14b mittels eines entsprechenden Hebelarms in Wirkverbindung steht und ein Zylinderrohr des Hydraulikzylinders an dem als Gabelträger ausgebildeten Lastträger 11 befestigt ist. Es ist ebenfalls möglich, lediglich eine beispielweise als Hydraulikzylinder ausgebildete Hilfskrafteinrichtung 16 vorzusehen, die an dem Lastträger 11 befestigt ist und mit beiden Lastabschnitten 14b in Wirkverbindung steht. Erfindungsgemäß ist bei der Ausführungsform der Figur 1 und der Ausführungsform der Figur 2 weiterhin im Bereich der Hubeinrichtung 9 eine Anhängevorrichtung 20 zum Transport von Anhängern vorgesehen. Die Anhängevorrichtung 20 weist hierbei mehrere vertikal beabstandete Flanschplatten 21 auf, in denen ein Kupplungsbolzen 22 angeordnet werden kann. Die Anhängevorrichtung 20 ist hierbei beispielsweise an dem Lastträger 11 zwischen den Gabelrücken 14a der beiden Gabelzinken (Figur 1) bzw. den klappbaren Lastabschnitten 14b des Lastaufnahmemittels 14 (Figur 2) angeordnet und befestigt. Die Anhängevorrichtung 20 kann manuell betätigt werden oder als automatische Kupplungsvorrichtung ausgebildet sein, die mittels eines entsprechenden Betätigungsorgans von dem Fahrerplatz aus betätigt werden kann.When in the FIG. 2 illustrated embodiment of the invention, the fork-shaped load-receiving means 14 is formed by two laterally spaced load sections 14b, which are mounted directly on the carrier formed as a fork carriage 11 pivotally. In order to pivot the load sections 14b, a bearing bore for a bearing pin forming the pivot axis 15 may be formed on the load carrier 11, the load section 14b being provided with a fork-shaped extension which forms corresponding receptacles for the bearing pin. If the auxiliary power device 16 is designed as a hydraulic cylinder, the load sections 14b can be pivoted in a simple manner, when the piston rod of the hydraulic cylinder with the corresponding load portion 14b by means of a corresponding lever arm is in operative connection and a cylinder tube of the hydraulic cylinder is attached to the carrier formed as a fork carrier 11 , It is also possible to provide only one auxiliary power device 16, for example designed as a hydraulic cylinder, which is fastened to the load carrier 11 and is in operative connection with both load sections 14b. According to the invention is in the embodiment of FIG. 1 and the embodiment of the FIG. 2 Furthermore provided in the lifting device 9, a hitch 20 for the transport of trailers. The hitch 20 in this case has a plurality of vertically spaced flange plates 21, in which a coupling pin 22 can be arranged. The hitch 20 is in this case for example on the load carrier 11 between the fork back 14 a of the two forks ( FIG. 1 ) or the foldable load sections 14b of the load receiving means 14 (FIG. FIG. 2 ) arranged and fixed. The towing device 20 can be manually operated or be designed as an automatic coupling device which can be actuated by means of a corresponding actuator from the driver's seat.

Mittels der Hilfskrafteinrichtung 16 sind die um die Schwenkachse 15 schwenkbar gelagerten Lastabschnitte 14b des Lastaufnahmemittels 14 sowohl bei der Ausführungsform gemäß der Figur 1 als auch bei der Ausführungsform gemäß der Figur 2 von der in der Figur 2 dargestellten horizontalen Stellung in eine gestrichelt dargestellte, vertikale Stellung schwenkbar.By means of the auxiliary power device 16 are pivotally mounted about the pivot axis 15 load portions 14b of the load receiving means 14 both in the embodiment according to the FIG. 1 as well as in the embodiment according to the FIG. 2 from in the FIG. 2 shown horizontal position in a dashed lines, vertical position pivoted.

In der vertikalen Position der Lastabschnitte 14b des Lastaufnahmemittels 14 können an die Anhängevorrichtung 20 des erfindungsgemäßen Flurförderzeug 1 ein oder mehrere Anhänger angehängt werden, wodurch das erfindungsgemäße Flurförderzeug 1 die Funktion eines Schleppers aufweist, der bei kompakten Abmessungen in Fahrzeuglängsrichtung ein Ziehen von Anhängem ermöglicht und somit zum Warentransport und Materialfluss innerhalb eines Produktionsbetriebes auf beengten Transportwegen und somit zur Materialversorgung von Produktionslinien in Produktionsbetrieben geeignet ist.In the vertical position of the load sections 14b of the load receiving means 14, one or more trailers can be attached to the hitch 20 of the truck 1 according to the invention, whereby the truck 1 according to the invention has the function of a tractor, which allows pulling of trailers with compact dimensions in the vehicle longitudinal direction and thus is suitable for transporting goods and material flow within a production plant on narrow transport routes and thus for supplying material to production lines in production plants.

In der horizontalen Position der Lastabschnitte 14b des Lastaufnahmemittels 14 weist das erfindungsgemäße Flurförderzeug 1 die Funktion eines Gabelstaplers auf, bei dem der Antriebsteil 2 und der in dem Batteriefach 6 angeordnete Batterieblock als Gegengewicht wirkt. Mittels der Hubeinrichtung 9 und dem gabelförmigen Lastaufnahmemittel 14, das an dem auf- und abbewegbaren als Gabelträger ausgebildeten Lastträger 11 angeordnet ist, können hierbei die Anhänger be- und entladen werden. Die Hubeinrichtung 9 weist hierbei aufgrund der Ausbildung mit einem Standmast 10 und einem in dem Standmast 10 auf- und abbewegbar angeordneten Lastträger 11 eine ausreihende Hubhöhe auf, um die Anhänger zu be- und entladen.In the horizontal position of the load sections 14b of the load receiving means 14, the truck 1 according to the invention has the function of a forklift, in which the drive part 2 and arranged in the battery compartment 6 battery block acts as a counterweight. By means of the lifting device 9 and the fork-shaped load-receiving means 14, which is arranged on the up and down movable designed as a fork carrier load carrier 11, in this case, the trailer can be loaded and unloaded. The lifting device 9 has in this case up and down due to the training with a stationary mast 10 and a in the stationary mast 10 arranged load carrier 11 on a sufficient lifting height to load the trailer and unload.

Zur Betätigung der Hilfskrafteinrichtung 16 und des Hubantriebs 12 sind entsprechende Betätigungseinrichtungen, beispielsweise an dem Bedienorgan 8 angeordnete Schalter vorgesehen, wodurch der mit den klappbaren Lastabschnitten 14b versehene Lastträger 11 vom Fahrerplatz 3 aus angehoben und abgesenkt sowie die Lastabschnitte 14b des Lastaufnahmemittels 14 vom Fahrerplatz 3 aus ein- und ausgeschwenkt werden können. Das erfindungsgemäße Flurförderzeug 1 kann somit vom Fahrerplatz 4 aus bedient werden, wodurch das erfindungsgemäße Flurförderzeug 1 eine leichte und sichere Bedienbarkeit mit guter Ergonomie aufweist.For actuating the auxiliary power device 16 and the lifting drive 12 corresponding actuators, for example, provided on the operating member 8 switch provided whereby the provided with the folding load sections 14b load carrier 11 raised and lowered from the driver's seat 3 and the load sections 14b of the load receiving means 14 from the driver's seat 3 can be swung in and out. The truck 1 according to the invention can thus be operated from the driver's seat 4, whereby the truck 1 according to the invention has an easy and safe operation with good ergonomics.

Bei einer Ausbildung des Hubantriebs 12 als Hubzylinder und der Hilfskrafteinrichtung 16 als Hydraulikzylinder 17 sind diese von einem nicht mehr dargestellten elektrisch angetriebenen Hydraulikaggregat versorgbar, das im Bereich des heckseitigen Rahmenabschnitts 25 oder im Antriebsteil 2 angeordnet werden kann.In one embodiment of the lifting drive 12 as a lifting cylinder and the auxiliary power device 16 as a hydraulic cylinder 17, these can be supplied by an electrically driven hydraulic unit (not shown), which can be arranged in the area of the rear frame section 25 or in the drive part 2.

Entgegen der gezeigten Ausführungsformen eines erfindungsgemäßen Flurförderzeugs 1, bei dem die Hubeinrichtung 9 und die Anhängevorrichtung 20 heckseitig im Bereich des heckseitigen Rahmenabschnitts 25 angeordnet sind, können ebenfalls die Hubeinrichtung 9 und die Anhängevorrichtung 20 frontseitig im Bereich des Antriebsteils 2 angeordnet werden.Contrary to the illustrated embodiments of an industrial truck 1 according to the invention, in which the lifting device 9 and the hitch 20 are arranged at the rear in the region of the rear-side frame portion 25, the lifting device 9 and the hitch 20 can also be arranged in the front of the drive part 2.

Zudem ist es möglich, die Anhängevorrichtung 20 heckseitig an dem heckseitigen Rahmenabschnitts 25 und die Hubeinrichtung 9 frontseitig an dem Antriebsteil 2 oder die Hubeinrichtung 9 heckseitig an dem heckseitigen Rahmenabschnitts 25 und die Anhängevorrichtung 20 frontseitig an dem Antriebsteil 2 anzuordnen.In addition, it is possible to arrange the hitch 20 rear side on the rear-side frame portion 25 and the lifting device 9 front on the drive part 2 or the lifting device 9 rear side on the rear-side frame portion 25 and the hitch 20 front of the drive part 2.

Anstelle der Anordnung des Batteriefachs 6 am Antriebsteil 2 kann das Batteriefach 6 ebenfalls an dem heckseitigen Rahmenabschnitt 25 angeordnet werden.Instead of the arrangement of the battery compartment 6 on the drive part 2, the battery compartment 6 can likewise be arranged on the rear-side frame section 25.

Das erfindungsgemäße Flurförderzeug 1 kann hierbei auf einfache Weise von einem Schlepper abgeleitet werden, der entsprechend den Figuren 1 und 2 mit einem Antriebsteil 2 und einem heckseitigen Rahmenabschnitts 25 sowie einem dazwischen angeordneten Fahrerplatz 4 versehen ist.The truck 1 according to the invention can be derived in this case in a simple manner by a tractor, according to the FIGS. 1 and 2 is provided with a drive part 2 and a rear-side frame portion 25 and an interposed driver's seat 4.

Claims (17)

  1. Industrial truck (1) with a lifting device (9), which comprises a load carrier (11) which can be moved up and down and is provided with a fork-shaped load pickup means (14), the load pickup means (14) having at least one load section (14b), which is mounted in such a way that it is capable of pivoting about a substantially horizontal pivot axis (15), characterized in that the industrial truck (1) is provided with a trailer apparatus (20) for transporting trailers, which trailer apparatus is arranged on the load carrier (11).
  2. Industrial truck according to Claim 1, characterized in that the trailer apparatus (20) is vertically adjustable.
  3. Industrial truck according to Claim 1 or 2, characterized in that the load section (14b) of the load pickup means (14) is capable of being pivoted between a horizontal position and a vertical position.
  4. Industrial truck according to one of Claims 1 to 3, characterized in that the load section (14b) of the load pickup means (14) is capable of being pivoted by means of an auxiliary force device (16), in particular a hydraulic cylinder (17).
  5. Industrial truck according to Claim 4, characterized in that the load section (14b) of the load pickup means (14) is capable of being pivoted out from a driver's station (4) by means of the auxiliary force device (16).
  6. Industrial truck according to one of Claims 1 to 5, characterized in that the industrial truck (1) has an electric drive system, a driver's station (4) being arranged between a front-side drive part (2), which is provided with a steerable driving wheel (3), and a rear-side frame section (25), the industrial truck (1) being provided with load rollers (7) in the region of the rear-side frame section (25).
  7. Industrial truck according to Claim 6, characterized in that a battery compartment (6) for accommodating a power supply device, in particular a battery pack, is arranged in the region of the rear-side frame section (25).
  8. Industrial truck according to Claim 6, characterized in that a battery compartment (6) for accommodating a power supply device, in particular a battery pack, is arranged in the region of the drive part (2).
  9. Industrial truck according to one of Claims 6 to 8, characterized in that the lifting device (9) is arranged in the region of the rear-side frame section (25).
  10. Industrial truck according to one of Claims 1 to 9, characterized in that the lifting device (9) has a fixed, stationary mast (10), in which the load carrier (11) is arranged in such a way that it can be moved up and down by means of a lifting drive (12), in particular a lifting cylinder.
  11. Industrial truck according to one of Claims 6 to 10, characterized in that the driver's station (4) has a standing platform (5) for a standing operator.
  12. Industrial truck according to one of Claims 1 to 11, characterized in that the industrial truck (1) has a total width of at most 900 mm, preferably at most 800 mm.
  13. Industrial truck according to one of Claims 1 to 12, characterized in that, in the case of load sections (14b) of the load pickup means (14) which are located in the horizontal position, the industrial truck (1) has a total length of at most 1800 mm, preferably at most 1700 mm.
  14. Industrial truck according to one of Claims 1 to 13, characterized in that the industrial truck (1) has a boarding height of at most 150 mm, preferably at most 135 mm.
  15. Industrial truck according to one of Claims 1 to 14, characterized in that the industrial truck (1) has a maximum lifting height of 1250 mm.
  16. Industrial truck according to one of Claims 1 to 15, characterized in that the load carrier (11) is in the form of a fork carrier, on which two laterally spaced-apart, foldable load sections (14b) of the load pickup means (14) are mounted pivotably.
  17. Industrial truck according to one of Claims 1 to 16, characterized in that the load carrier (11) is in the form of a fork carrier and the load pickup means (11) is formed by two laterally spaced-apart fork prongs, which each have a fork back (14a), on which a load section (14b) is mounted pivotably and with which the fork prongs can be fastened to the fork carrier.
EP20080018400 2007-12-21 2008-10-21 Industrial truck with a lifting device and a trailer device Active EP2072454B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007062019 2007-12-21
DE102008036411A DE102008036411A1 (en) 2007-12-21 2008-08-05 Truck with a lifting device and a hitch

Publications (3)

Publication Number Publication Date
EP2072454A2 EP2072454A2 (en) 2009-06-24
EP2072454A3 EP2072454A3 (en) 2009-10-07
EP2072454B1 true EP2072454B1 (en) 2011-03-09

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ID=40494927

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Application Number Title Priority Date Filing Date
EP20080018400 Active EP2072454B1 (en) 2007-12-21 2008-10-21 Industrial truck with a lifting device and a trailer device

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EP (1) EP2072454B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023529A1 (en) 2008-05-07 2009-11-12 Still Sas Truck with a lifting mast and a hitch
JP5768714B2 (en) 2009-07-03 2015-08-26 三菱化学株式会社 Method for producing silicon

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264512A (en) * 1939-04-14 1941-12-02 Clark Equipment Co Industrial truck
GB1200736A (en) 1967-04-11 1970-07-29 Crown Controls Ltd Improvements in and relating to fork lift trucks
JPS5822769A (en) * 1981-07-31 1983-02-10 Suzuki Tanko Co Ltd Lifting device for agricultural tractor and trailer
DE9011106U1 (en) * 1990-07-27 1990-10-31 Dethleffs Caravans Gmbh, 7972 Isny, De
DE19857167A1 (en) * 1998-12-11 2000-06-21 Deere & Co Telescopic device attachment of a motor vehicle

Also Published As

Publication number Publication date
EP2072454A3 (en) 2009-10-07
EP2072454A2 (en) 2009-06-24

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