EP3686150B1 - Industrial truck with a battery-powered driven part - Google Patents

Industrial truck with a battery-powered driven part Download PDF

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Publication number
EP3686150B1
EP3686150B1 EP20153501.0A EP20153501A EP3686150B1 EP 3686150 B1 EP3686150 B1 EP 3686150B1 EP 20153501 A EP20153501 A EP 20153501A EP 3686150 B1 EP3686150 B1 EP 3686150B1
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EP
European Patent Office
Prior art keywords
battery
industrial truck
wheel
truck according
frame
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EP20153501.0A
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German (de)
French (fr)
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EP3686150A1 (en
Inventor
Michael Schüler
Helmut Lohmann
Holger Brunckhorst
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Jungheinrich AG
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Jungheinrich AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/07513Details concerning the chassis
    • B66F9/07531Battery compartments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/07513Details concerning the chassis

Definitions

  • the present invention relates to an industrial truck with a load part and a battery-operated drive part, which has a fixed driver's position.
  • the invention is based on the object of finding a suitable installation position for the battery for maintenance and inspection work for an industrial truck with an integrated driver's platform.
  • the industrial truck according to the invention has a load part and a battery-operated drive part.
  • the drive part has a driver's position and a frame that absorbs the forces and moments acting on the vehicle.
  • Wheel carriers are provided in the frame, each of which accommodates one of the wheels for the vehicle.
  • a battery location is provided in the drive part between the wheel carriers.
  • the industrial truck is characterized in that a battery storage area is designed under a stand platform mounted on the frame in such a way that the battery can be moved from its battery location into the battery storage area.
  • the special idea of the present invention is that the battery can be moved in the frame of the drive part out of the battery stand into a battery storage area under the stand platform.
  • the battery parking area is created on which the battery can be placed outside the battery stand.
  • the battery stand and battery storage area are characterized relative to one another in that the battery can be moved from its stand into the battery storage area, i.e. can preferably be moved without lifting or the like.
  • the battery stand and the battery storage area lie on one level.
  • the battery storage area preferably has enough space that allows the battery to be placed in different spatial positions, while the battery stand preferably provides a clearly specified battery stand position.
  • the frame has a cross plate, a rear wall facing the load part and two wheel carriers.
  • a cross plate is preferably provided in the frame, which extends at least partially between the wheel carriers and forms the basis for the battery location.
  • the cross plate can also extend beyond the battery stand under the stand platform into the battery storage area.
  • the task of the cross plate is to stabilize the frame in the transverse direction and to close the vehicle downwards towards the ground.
  • the cross plate is therefore used in particular in the area in which electrical, hydraulic or other components of the drive part are provided and are protected by the cross plate.
  • the integrated driver's platform such a cover with a cross plate at the bottom was not previously provided.
  • the cross plate now also extends under the standing platform, so that a battery storage area is provided. The battery storage area allows the battery to be pulled out of the battery stand when the stand platform is dismantled and placed in the battery storage area formed by the cross plate.
  • the cross plate not only forms the base for the battery stand but also forms a floor for the drive part. This means that the cross plate is provided in the areas in which the drive part is provided with a base.
  • the cross plate is preferably formed in one piece and connected as one piece to the frame of the drive part.
  • the wheel carriers are each designed as a cuboid elevation relative to the cross plate.
  • the two Wheel carriers have mutually parallel side walls, of which the mutually facing side surfaces limit the battery location laterally beyond the height of the wheel carrier.
  • the particular advantage is that the wheel carriers have a dual function. On the one hand, they carry a wheel with or without a drive, and on the other hand, they form the boundary surface for the battery location, at least in the lateral direction.
  • the battery location On its side facing the load part, the battery location is preferably limited by the rear wall of the frame. There are no components of the drive part that are important for the truck to function in the area between the battery and the rear wall. For maintenance and inspection work on the industrial truck, this means that the battery only needs to be removed and pushed onto the battery storage area if work is to be carried out in the areas adjacent to the battery.
  • a length of the cable is dimensioned such that the battery can be moved to the battery storage area without loosening the cables.
  • detachable cables could also be provided for connecting the battery to the consumers in the drive part, but the advantage of long cables that can remain connected even if the battery is moved into the battery storage area is of particular advantage.
  • the depth of the battery in the longitudinal direction of the vehicle also corresponds to the depth of the wheel carrier in the longitudinal direction of the vehicle. The battery therefore has the same dimensions in the longitudinal direction of the vehicle as the wheel carriers in the longitudinal direction of the vehicle. In this way, the battery sits flush against the side walls of the wheel carrier and cannot twist or tilt.
  • one of the wheel carriers is provided with a drive wheel and its drive.
  • the other wheel carrier preferably carries a support wheel.
  • the hydraulic component is mounted on the side of the support wheel and the electrical components are mounted on the side of the drive wheel.
  • FIG. 1 shows a perspective view of the frame 10 for the drive part.
  • the frame 10 is sometimes also referred to as a drive frame or as a vehicle frame because it absorbs the forces and moments that occur when the vehicle is in use.
  • the frame 10 has a U-shaped frame component 12 in which the cross plate 14 is arranged.
  • the frame component 12 has an entry area 16.
  • the entry area 16 consists of a continuous flat profile which has ends 18a, 18b (cf. Fig. 2 ) folded and jumps.
  • Connected to the ends 18a, 18b are two connecting plates which merge into the side parts 20a, 20b of the frame via a rounded arch.
  • the side parts 20a, 20b each have a protruding skirt 22a, 22b, which increases the width of the frame.
  • the side parts also have a folded connecting section 24a, b at their end facing the load part, onto which the main side parts 26a, 26b attach.
  • the main side parts 26 define the height of the drive part.
  • the main side parts 26 are connected by the rear wall 28.
  • the rear wall 28 can be placed as a separate component between the main side parts 26a, 26b. It is also possible for the rear wall 28 and the main side parts 26a, b to be manufactured in one piece and connected to the significantly lower side parts 20.
  • the components such as drive, battery, hydraulic element, etc. are located between the main side parts, while the side parts 20a, b with their skirts 22a, b serve to fasten side walls, not shown. Side walls for the driver's stand can also be installed as separate components.
  • the transverse plate 14 which essentially has a T-shape, extends inside the frame.
  • the trunk of the T-shape forms the battery stand 30, while the cross leg of the T forms the battery storage area 32.
  • the battery storage area 32 borders closely on the entry area 16 of the frame 10.
  • the battery storage area 32 is laterally delimited by two platform sections 34.
  • a standing platform for example designed to be swinging or resilient, is arranged for the driver in the battery storage area 32.
  • This standing platform can be flush with the side platforms 34 in height, so that a uniform A driver's platform with no edges is created.
  • the platform sections 34 can be used to attach side walls.
  • a first wheel carrier 36 and a second wheel carrier 38 can be seen adjacent to the cross plate 14.
  • the wheel carriers 36, 38 are cuboid and border on the rear wall 28, on the main side section 26, the aprons 22, the pedestals 34, the battery storage area 32 and the battery stand 30. Since a large part of the forces acting on the frame 10 via the wheel carriers 36 and 38 is passed on to the ground, these are arranged particularly stably in the frame 10.
  • the wheel carrier 36 has a larger circular opening 40 than the other wheel carrier 38, which has a smaller circular opening 42.
  • the Figures 3 show the frame 10 for the drive part, which is equipped with some important components.
  • the centrally arranged battery 44 can be seen.
  • the battery 44 has a cuboid shape and stands upright between the wheel carriers 36 and 38.
  • the battery stand 30 is completely covered by the standing battery.
  • the wheel carrier 36 carries a drive wheel 46, the drive 48 of which is arranged above the wheel.
  • the drive wheel 46 is also designed to be steerable.
  • the other wheel carrier 38 carries a support wheel 50, which follows a steering movement of the drive wheel 46.
  • an electrical component 52 can be seen, which is mounted on the rear wall close to the electrical drive 48.
  • a hydraulic unit 54 is also shown, which is mounted in the area of the support wheel 50.
  • the battery 44 is connected to the electrical consumers of the industrial truck, in particular the electrical unit 52, via electrical cables 56.
  • Figures 4 show the handling of the battery 44 in a view from above.
  • Figure 4a shows the battery 44 on the battery stand 30.
  • Figure 4b shows the battery 44, as she was pulled into the battery storage area 32. In order to be able to move the battery 44 on the cross plate, the standing platform is removed.
  • Figure 4c shows the battery 44 in the battery storage area 32 moved in the direction of the drive wheel 46. This makes it possible to view the area on the side of the drive wheel via the battery stand 30. A service technician has access to the drive wheel 46 and its components via the battery storage area 32.
  • Figure 4d shows the reverse situation in which the battery 44 was pushed to the side of the support wheel 50. This also gives a service technician side access to the components adjacent to the battery stand 30.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Description

Die vorliegende Erfindung betrifft ein Flurförderzeug mit einem Lastteil und einem batteriebetriebenen Antriebsteil, das einen festen Fahrerstandplatz besitzt.The present invention relates to an industrial truck with a load part and a battery-operated drive part, which has a fixed driver's position.

Von deichselgeführten Flurförderzeugen ohne einen festen Fahrerstandplatz ist aus DE 1 97 00272 A1 bekannt geworden, den Batterieblock in einem Bereich zwischen dem Antriebsrad und einem zweiten Rad anzuordnen, um so den Schwerpunkt des Flurförderzeugs nach vorne, in die Nähe der Räder des Antriebsteils zu verlagern, damit sich die Räder gut auf der Fahrbahn abstützen können. DE 1 97 00272 A1 offenbart ein Flurförderzeug gemäß dem Oberbegriff des unabhängigen Anspruchs 1.There is no use of drawbar-guided industrial trucks without a fixed driver's position DE 1 97 00272 A1 It has become known to arrange the battery block in an area between the drive wheel and a second wheel in order to shift the center of gravity of the industrial truck forward, close to the wheels of the drive part, so that the wheels can be well supported on the road. DE 1 97 00272 A1 discloses an industrial truck according to the preamble of independent claim 1.

Aus EP 1 457 403 A1 ist ein Gabelhubwagen mit einem Antriebsteil, einem deichselförmigen Steuerungsteil und einem Lastteil bekannt geworden, wobei der Gabelhubwagen so beschaffen ist, dass die Oberseite des Antriebsteils als Standfläche ausgebildet ist.Out of EP 1 457 403 A1 a pallet truck with a drive part, a drawbar-shaped control part and a load part has become known, the pallet truck being designed in such a way that the top of the drive part is designed as a standing surface.

Mit der Verwendung von Lithiumionenbatterien besteht zunehmend die Möglichkeit, die Batterie tiefer in das Fahrzeug zu integrieren, denn die Batterie muss nicht länger für einen Ladevorgang oder einen Wartungsvorgang aus dem Fahrzeug genommen und separat in einem gelüfteten Raum geladen werden. Somit bestehen neue Möglichkeiten, für den Einbau der Batterie im Flurförderzeug. Andererseits muss gesehen werden, dass eine tief in das Fahrzeug integrierte Batterie als großes und sperriges Bauteil bei Wartungs- und Inspektionsarbeiten hinderlich sein kann. Es besteht von daher das Bedürfnis, die Batterie derart in das Flurförderzeug zu integrieren, dass weiterhin Inspektions- und Wartungsarbeiten an den übrigen Teilen und Komponenten des Fahrzeugs ohne weiteres durchgeführt werden können. Insbesondere bei Fahrzeugen mit integrierter Fahrerstandplattform, bei denen für eine gute Handhabbarkeit des Fahrzeugs die Länge des Fahrzeugs trotz integrierter Fahrerstandplattform nicht zu groß sein darf, ist der kompakte Aufbau technisch schwierig.With the use of lithium-ion batteries, there is increasingly the possibility of integrating the battery more deeply into the vehicle, because the battery no longer has to be removed from the vehicle for charging or maintenance and charged separately in a ventilated room. This means there are new options for installing the battery in the industrial truck. On the other hand, it must be recognized that a battery that is deeply integrated into the vehicle as a large and bulky component can be a hindrance during maintenance and inspection work. There is therefore a need to integrate the battery into the industrial truck in such a way that inspection and maintenance work on the remaining parts and components of the vehicle can be carried out easily. The compact structure is technically difficult, particularly in vehicles with an integrated driver's platform, where the length of the vehicle must not be too large to ensure good handling of the vehicle despite the integrated driver's platform.

Der Erfindung liegt die Aufgabe zugrunde für ein Flurförderzeug mit einer integrierten Fahrerstandplattform eine für Wartungs- und Inspektionsarbeiten günstige Einbauposition der Batterie zu finden.The invention is based on the object of finding a suitable installation position for the battery for maintenance and inspection work for an industrial truck with an integrated driver's platform.

Erfindungsgemäß wird die Aufgabe durch ein Flurförderzeug mit den Merkmalen aus Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen bilden die Gegenstände der Unteransprüche.According to the invention, the object is achieved by an industrial truck with the features of claim 1. Advantageous refinements form the subject matter of the subclaims.

Das erfindungsgemäße Flurförderzeug besitzt ein Lastteil und ein batteriebetriebenes Antriebsteil. Das Antriebsteil weist einen Fahrerstandplatz und einen Rahmen auf, der die an dem Fahrzeug angreifende Kräfte und Momente aufnimmt. In dem Rahmen sind Radträger vorgesehen, die jeweils eines der Räder für das Fahrzeug aufnehmen Zwischen den Radträgern ist ein Batteriestandplatz in dem Antriebsteil vorgesehen. Erfindungsgemäß zeichnet sich das Flurförderzeug dadurch aus, dass ein Batterieabstellbereich unter einer am Rahmen montierten Standplattform derart ausgebildet, dass die Batterie von ihrem Batteriestandplatz in den Batterieabstellbereich verschoben werden kann. Der besondere Gedanke an der vorliegenden Erfindung ist, dass die Batterie in dem Rahmen des Antriebsteils aus dem Batteriestandplatz heraus in einen Batterieabstellbereich unter der Standplattform verschoben werden kann. Auf diese Weise entsteht bei entfernter Standplattform der Batterieabstellbereich, auf dem die Batterie außerhalb des Batteriestandplatzes abgestellt werden kann. Batteriestandplatz und Batterieabstellbereich sind relativ zu einander dadurch gekennzeichnet, dass die Batterie aus ihrem Standplatz in den Batterieabstellbereich verschiebbar ist, also bevorzugt ohne Anheben oder dergleichen schiebend bewegt werden kann. Erfindungsgemäß liegen der Batteriestandplatz und der Batterieabstellbereich in einer Ebene. Der Batterieabstellbereich besitzt bevorzugt genügend Platz, der ein Stellen der Batterie in verschiedenen räumlichen Positionen erlaubt, während der Batteriestandplatz bevorzugt eine eindeutig vorgegebene Batteriestandposition bereitstellt.The industrial truck according to the invention has a load part and a battery-operated drive part. The drive part has a driver's position and a frame that absorbs the forces and moments acting on the vehicle. Wheel carriers are provided in the frame, each of which accommodates one of the wheels for the vehicle. A battery location is provided in the drive part between the wheel carriers. According to the invention, the industrial truck is characterized in that a battery storage area is designed under a stand platform mounted on the frame in such a way that the battery can be moved from its battery location into the battery storage area. The special idea of the present invention is that the battery can be moved in the frame of the drive part out of the battery stand into a battery storage area under the stand platform. In this way, when the stand platform is removed, the battery parking area is created on which the battery can be placed outside the battery stand. The battery stand and battery storage area are characterized relative to one another in that the battery can be moved from its stand into the battery storage area, i.e. can preferably be moved without lifting or the like. According to the invention, the battery stand and the battery storage area lie on one level. The battery storage area preferably has enough space that allows the battery to be placed in different spatial positions, while the battery stand preferably provides a clearly specified battery stand position.

Der Rahmen weist ein Querblech, eine zum Lastteil weisende Rückwand und zwei Radträger auf. Bevorzugt ist ein Querblech in dem Rahmen vorgesehen, das sich mindestens teilweise zwischen den Radträgern erstreckt und den Grund für den Batteriestandplatz bildet. Das Querblech kann sich auch über den Batteriestandplatz hinaus unter der Standplattform in den Batterieabstellbereich erstrecken.The frame has a cross plate, a rear wall facing the load part and two wheel carriers. A cross plate is preferably provided in the frame, which extends at least partially between the wheel carriers and forms the basis for the battery location. The cross plate can also extend beyond the battery stand under the stand platform into the battery storage area.

Grundsätzlich ist es die Aufgabe des Querblechs den Rahmen in Querrichtung zu stabilisieren und das Fahrzeug nach unten, zum Boden hin abzuschließen. Das Querblech wird daher insbesondere in dem Bereich verwendet, in dem elektrische, hydraulische oder sonstige Komponenten des Antriebsteils vorgesehen sind und durch das Querblech geschützt werden. Bei der integrierten Fahrerstandplattform wurde bisher eine solche Abdeckung durch ein Querblech nach unten nicht vorgesehen. Im Bereich des Fahrerstandplatzes wurde eine Standplattform, gefedert oder nicht gefedert montiert und ein Querblech war nicht erforderlich. Bei dem erfindungsgemäßen Fahrzeug erstreckt sich das Querblech nun auch unter die Standplattform, sodass ein Batterieabstellbereich bereitgestellt wird. Der Batterieabstellbereich erlaubt es, die Batterie bei demontierter Standplattform aus dem Batteriestandplatz herauszuziehen und im durch das Querblech gebildeten Batterieabstellbereich abzustellen.Basically, the task of the cross plate is to stabilize the frame in the transverse direction and to close the vehicle downwards towards the ground. The cross plate is therefore used in particular in the area in which electrical, hydraulic or other components of the drive part are provided and are protected by the cross plate. In the case of the integrated driver's platform, such a cover with a cross plate at the bottom was not previously provided. A standing platform, sprung or non-sprung, was installed in the area of the driver's stand and a cross plate was not required. In the vehicle according to the invention, the cross plate now also extends under the standing platform, so that a battery storage area is provided. The battery storage area allows the battery to be pulled out of the battery stand when the stand platform is dismantled and placed in the battery storage area formed by the cross plate.

In einer bevorzugten Weiterbildung bildet das Querblech nicht nur die Standfläche für den Batteriestandplatz sondern bildet auch einen Boden für das Antriebsteil. Dies bedeutet, dass in den Bereichen, in denen das Antriebsteil mit einem Boden versehen ist, das Querblech vorgesehen ist. Das Querblech ist bevorzugt einstückig ausgebildet und als ein Stück mit dem Rahmen des Antriebsteils verbunden.In a preferred development, the cross plate not only forms the base for the battery stand but also forms a floor for the drive part. This means that the cross plate is provided in the areas in which the drive part is provided with a base. The cross plate is preferably formed in one piece and connected as one piece to the frame of the drive part.

In einer bevorzugten Weiterbildung sind die Radträger als jeweils eine quaderförmige Erhöhung gegenüber dem Querblech ausgebildet. Die beiden Radträger besitzen zueinander parallele Seitenwände, von denen die einander zugewandten Seitenflächen den Batteriestandplatz seitlich über die Höhe der Radträger begrenzen. Der besondere Vorteil liegt darin, dass die Radträger eine doppelte Funktion besitzen. Einerseits tragen sie ein Rad mit oder ohne Antrieb, andererseits bilden sie die Begrenzungsfläche für den Batteriestandplatz zumindest in seitlicher Richtung.In a preferred development, the wheel carriers are each designed as a cuboid elevation relative to the cross plate. The two Wheel carriers have mutually parallel side walls, of which the mutually facing side surfaces limit the battery location laterally beyond the height of the wheel carrier. The particular advantage is that the wheel carriers have a dual function. On the one hand, they carry a wheel with or without a drive, and on the other hand, they form the boundary surface for the battery location, at least in the lateral direction.

Auf seiner zum Lastteil weisenden Seite ist der Batteriestandplatz bevorzugt durch die Rückwand des Rahmens begrenzt. Es befinden sich also keinerlei Komponenten des Antriebsteils, die für eine Funktion des Flurförderzeugs wichtig sind im Bereich zwischen Batterie und Rückwand. Für Wartungs- und Inspektionsarbeiten an dem Flurförderzeug bedeutet dies, dass die Batterie nur dann herausgenommen und auf den Batterieabstellbereich geschoben werden muss, wenn in den seitlich an die Batterie angrenzenden Bereichen gearbeitet werden soll.On its side facing the load part, the battery location is preferably limited by the rear wall of the frame. There are no components of the drive part that are important for the truck to function in the area between the battery and the rear wall. For maintenance and inspection work on the industrial truck, this means that the battery only needs to be removed and pushed onto the battery storage area if work is to be carried out in the areas adjacent to the battery.

Für das Verschieben der Batterie auf den Batterieabstellbereich hat es sich als besonders vorteilhaft herausgestellt, dass eine Länge der Kabel derart bemessen ist, dass die Batterie ohne Lösen der Kabel auf den Batterieabstellbereich verschoben werden kann. Grundsätzlich könnten auch lösbare Kabel zur Verbindung der Batterie mit den Verbrauchern im Antriebsteil vorgesehen sein, jedoch ist der Vorteil von langen Kabeln, die auch bei einem Verschieben der Batterie in den Batterieabstellbereich verbunden bleiben können von besonderem Vorteil. In einer weiteren und besonders bevorzugten Ausgestaltung entspricht die Tiefe der Batterie in Fahrzeuglängsrichtung auch der Tiefe der Radträger in Fahrzeuglängsrichtung. Die Batterie besitzt also in Fahrzeuglängsrichtung die gleichen Abmessungen, wie die Radträger in Fahrzeuglängsrichtung. Auf diese Weise steht die Batterie bündig an den Seitenwänden der Radträger an und kann sich nicht verdrehen oder verkanten.For moving the battery to the battery storage area, it has proven to be particularly advantageous that a length of the cable is dimensioned such that the battery can be moved to the battery storage area without loosening the cables. In principle, detachable cables could also be provided for connecting the battery to the consumers in the drive part, but the advantage of long cables that can remain connected even if the battery is moved into the battery storage area is of particular advantage. In a further and particularly preferred embodiment, the depth of the battery in the longitudinal direction of the vehicle also corresponds to the depth of the wheel carrier in the longitudinal direction of the vehicle. The battery therefore has the same dimensions in the longitudinal direction of the vehicle as the wheel carriers in the longitudinal direction of the vehicle. In this way, the battery sits flush against the side walls of the wheel carrier and cannot twist or tilt.

In einer bevorzugten Ausgestaltung ist einer der Radträger mit einem Antriebsrad und dessen Antrieb versehen. Der andere Radträger trägt bevorzugt ein Stützrad. Für die Aufteilung der Komponenten in dem Antriebsteil hat es sich als vorteilhaft herausgestellt, wenn die Hydraulikkomponente auf der Seite des Stützrades montiert ist und die elektrischen Komponenten auf der Seite des Antriebsrades montiert sind.In a preferred embodiment, one of the wheel carriers is provided with a drive wheel and its drive. The other wheel carrier preferably carries a support wheel. For the division of the components in the drive part, it has proven to be advantageous if the hydraulic component is mounted on the side of the support wheel and the electrical components are mounted on the side of the drive wheel.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert, es zeigen:

Figur 1
einen Rahmen für das Antriebsteil des Flurförderzeugs mit Querblech und Radträgern sowie seiner Rückwand,
Figur 2
den Rahmen aus Figur 1 mit einem Blick auf das Querblech,
Figuren 3a, b und c
den Rahmen aus Figur 1 mit montierten Rädern und eingesetzter Batterie und
Figuren 4a, b, c, d
eine Ansicht von oben mit unterschiedlichen Stellpositionen für die Batterie.
The invention is explained in more detail below using an exemplary embodiment, as shown:
Figure 1
a frame for the drive part of the industrial truck with cross plate and wheel carriers as well as its rear wall,
Figure 2
the frame Figure 1 with a look at the cross plate,
Figures 3a, b and c
the frame Figure 1 with wheels mounted and battery inserted and
Figures 4a, b, c, d
a view from above with different positions for the battery.

Figur 1 zeigt in einer perspektivischen Ansicht den Rahmen 10 für das Antriebsteil. Der Rahmen 10 wird gelegentlich auch als Antriebsrahmen oder als Fahrzeugrahmen bezeichnet, da er die beim Einsatz des Fahrzeugs auftretenden Kräfte und Momente aufnimmt. Der Rahmen 10 besitzt eine U-förmige Rahmenkomponente 12, in der das Querblech 14 angeordnet ist. Die Rahmenkomponente 12 besitzt einen Einstiegsbereich 16. Der Einstiegsbereich 16 besteht aus einem durchgehenden Flachprofil, das an seinen Enden 18a, 18b (vgl. Fig. 2) abgekantet verspringt. Mit den Enden 18a, 18b verbunden sind zwei Anschlussbleche, die über einen abgerundeten Bogen in die Seitenteile 20a, 20b des Rahmens übergehen. Die Seitenteile 20a, 20b besitzen jeweils eine vorstehende Schürze 22a, 22b, durch die die Breite des Rahmens vergrößert ist. Die Seitenteile besitzen an ihrem zum Lastteil weisenden Ende ebenfalls einen abgekanteten Verbindungsabschnitt 24 a, b, an dem die Hauptseitenteile 26a, 26b ansetzen. Figure 1 shows a perspective view of the frame 10 for the drive part. The frame 10 is sometimes also referred to as a drive frame or as a vehicle frame because it absorbs the forces and moments that occur when the vehicle is in use. The frame 10 has a U-shaped frame component 12 in which the cross plate 14 is arranged. The frame component 12 has an entry area 16. The entry area 16 consists of a continuous flat profile which has ends 18a, 18b (cf. Fig. 2 ) folded and jumps. Connected to the ends 18a, 18b are two connecting plates which merge into the side parts 20a, 20b of the frame via a rounded arch. The side parts 20a, 20b each have a protruding skirt 22a, 22b, which increases the width of the frame. The side parts also have a folded connecting section 24a, b at their end facing the load part, onto which the main side parts 26a, 26b attach.

Die Hauptseitenteile 26 definieren die Höhe des Antriebsteils. Verbunden sind die Hauptseitenteile 26 durch die Rückwand 28. Die Rückwand 28 kann als separates Bauteil zwischen die Hauptseitenteile 26a, 26b gesetzt sein. Es ist auch möglich, dass die Rückwand 28 und die Hauptseitenteile 26a, b einstückig hergestellt und mit den deutlich niedrigeren Seitenteilen 20 verbunden werden. Für ein besseres Verständnis ist es hilfreich sich vorzustellen, dass sich zwischen den Hauptseitenteilen die Komponenten, wie Antrieb, Batterie, Hydraulikelement, etc. befinden, während die Seitenteile 20a, b mit ihren Schürzen 22a, b zur Befestigung von nicht dargestellten Seitenwänden dienen. Seitenwände für den Fahrerstandplatz können auch als separate Bauteile angesetzt werden.The main side parts 26 define the height of the drive part. The main side parts 26 are connected by the rear wall 28. The rear wall 28 can be placed as a separate component between the main side parts 26a, 26b. It is also possible for the rear wall 28 and the main side parts 26a, b to be manufactured in one piece and connected to the significantly lower side parts 20. For a better understanding, it is helpful to imagine that the components such as drive, battery, hydraulic element, etc. are located between the main side parts, while the side parts 20a, b with their skirts 22a, b serve to fasten side walls, not shown. Side walls for the driver's stand can also be installed as separate components.

Im Inneren des Rahmens erstreckt sich das Querblech 14, das im Wesentlichen eine T-Form aufweist. Der Stamm der T-Form bildet hierbei den Batteriestandplatz 30, während der Querschenkel des Ts den Batterieabstellbereich 32 bildet. Wie in den Figuren dargestellt, grenzt der Batterieabstellbereich 32 dicht an den Einstiegsbereich 16 des Rahmens 10. Der Batterieabstellbereich 32 wird seitlich von zwei Podestabschnitten 34 begrenzt. Im fertig montierten Zustand ist eine, beispielsweise schwingend oder federnd ausgebildete Standplattform für den Fahrer im Batterieabstellbereich 32 angeordnet. Diese Standplattform kann mit den seitlichen Podesten 34 in der Höhe fluchtend abschließen, sodass eine einheitliche und ohne Kanten ausgebildete Fahrerstandplattform entsteht. Die Podestabschnitte 34 können zur Befestigung von Seitenwänden dienen.The transverse plate 14, which essentially has a T-shape, extends inside the frame. The trunk of the T-shape forms the battery stand 30, while the cross leg of the T forms the battery storage area 32. As shown in the figures, the battery storage area 32 borders closely on the entry area 16 of the frame 10. The battery storage area 32 is laterally delimited by two platform sections 34. In the fully assembled state, a standing platform, for example designed to be swinging or resilient, is arranged for the driver in the battery storage area 32. This standing platform can be flush with the side platforms 34 in height, so that a uniform A driver's platform with no edges is created. The platform sections 34 can be used to attach side walls.

Angrenzend an das Querblech 14 ist ein erster Radträger 36 und ein zweiter Radträger 38 zu erkennen. Die Radträger 36, 38 sind quaderförmig ausgebildet und grenzen an die Rückwand 28, an dem Hauptseitenabschnitt 26, die Schürzen 22, die Podeste 34, den Batterieabstellbereich 32 und den Batteriestandplatz 30. Da ein Großteil der an dem Rahmen 10 angreifenden Kräfte über die Radträger 36 und 38 an den Untergrund weitergegeben wird, sind diese besonders stabil im Rahmen 10 angeordnet. Der Radträger 36 besitzt eine größere kreisrunde Durchbrechung 40, als der andere Radträger 38, der eine kleinere kreisrunde Durchbrechung 42 besitzt.A first wheel carrier 36 and a second wheel carrier 38 can be seen adjacent to the cross plate 14. The wheel carriers 36, 38 are cuboid and border on the rear wall 28, on the main side section 26, the aprons 22, the pedestals 34, the battery storage area 32 and the battery stand 30. Since a large part of the forces acting on the frame 10 via the wheel carriers 36 and 38 is passed on to the ground, these are arranged particularly stably in the frame 10. The wheel carrier 36 has a larger circular opening 40 than the other wheel carrier 38, which has a smaller circular opening 42.

Die Figuren 3 zeigen den Rahmen 10 für das Antriebsteil, der mit einigen wichtigen Komponenten bestückt ist. Zu erkennen ist die zentral angeordnete Batterie 44. Die Batterie 44 besitzt eine quaderförmige Gestalt, wobei sie zwischen den Radträgern 36 und 38 aufrecht steht. Der Batteriestandplatz 30 ist dabei vollständig von der stehenden Batterie bedeckt. Der Radträger 36 trägt ein Antriebsrad 46, dessen Antrieb 48 oberhalb des Rades angeordnet ist. Das Antriebsrad 46 ist zudem lenkbar ausgebildet. Der andere Radträger 38 trägt ein Stützrad 50, das eine Lenkbewegung des Antriebsrades 46 folgt. Ferner ist in den Figuren 3 eine elektrische Komponente 52 zu erkennen, die an der Rückwand nahe zu dem elektrischen Antrieb 48 montiert ist. Auch ist eine hydraulische Einheit 54 gezeigt, die im Bereich des Stützrades 50 montiert ist. Die Batterie 44 ist über elektrische Kabel 56 mit den elektrischen Verbrauchern des Flurförderzeugs, insbesondere der elektrischen Einheit 52 verbunden.The Figures 3 show the frame 10 for the drive part, which is equipped with some important components. The centrally arranged battery 44 can be seen. The battery 44 has a cuboid shape and stands upright between the wheel carriers 36 and 38. The battery stand 30 is completely covered by the standing battery. The wheel carrier 36 carries a drive wheel 46, the drive 48 of which is arranged above the wheel. The drive wheel 46 is also designed to be steerable. The other wheel carrier 38 carries a support wheel 50, which follows a steering movement of the drive wheel 46. Furthermore, in the Figures 3 an electrical component 52 can be seen, which is mounted on the rear wall close to the electrical drive 48. A hydraulic unit 54 is also shown, which is mounted in the area of the support wheel 50. The battery 44 is connected to the electrical consumers of the industrial truck, in particular the electrical unit 52, via electrical cables 56.

Figuren 4 zeigen die Handhabung der Batterie 44 in einer Ansicht von oben. Figur 4a zeigt die Batterie 44 auf dem Batteriestandplatz 30. Figur 4b zeigt die Batterie 44, wie sie in den Batterieabstellbereich 32 gezogen wurde. Um die Batterie 44 auf dem Querblech verschieben zu können, ist die Standplattform ausgebaut. Figur 4c zeigt die Batterie 44 im Batterieabstellbereich 32 in Richtung des Antriebsrades 46 verschoben. Hierdurch kann über den Batteriestandplatz 30 Einblick in den Bereich auf Seiten des Antriebsrades genommen werden. Ein Servicetechniker hat über den Batterieabstellbereich 32 Zugang zu dem Antriebsrad 46 und dessen Komponenten. Figures 4 show the handling of the battery 44 in a view from above. Figure 4a shows the battery 44 on the battery stand 30. Figure 4b shows the battery 44, as she was pulled into the battery storage area 32. In order to be able to move the battery 44 on the cross plate, the standing platform is removed. Figure 4c shows the battery 44 in the battery storage area 32 moved in the direction of the drive wheel 46. This makes it possible to view the area on the side of the drive wheel via the battery stand 30. A service technician has access to the drive wheel 46 and its components via the battery storage area 32.

Figur 4d zeigt die umgekehrte Situation, in der die Batterie 44 zur Seite des Stützrades 50 geschoben wurde. Auch hierdurch erhält ein Servicetechniker seitlichen Zugang zu den an den Batteriestandplatz 30 angrenzenden Komponenten. Figure 4d shows the reverse situation in which the battery 44 was pushed to the side of the support wheel 50. This also gives a service technician side access to the components adjacent to the battery stand 30.

BezugszeichenlisteReference symbol list

1010
RahmenFrame
1212
RahmenkomponenteFrame component
1414
QuerblechCross plate
1616
EinstiegsbereichEntry area
18 a, b18a, b
Enden des FlachprofilsEnds of the flat profile
20 a, b20 a, b
SeitenteilSide part
22 a, b22a, b
Schürzeapron
24 a, b24 a, b
Verbindungsabschnittconnection section
26 a, b26a, b
HauptseitenteileMain side panels
2828
RückwandBack wall
3030
BatteriestandplatzBattery stand
3232
BatterieabstellbereichBattery storage area
3434
PodestabschnittPedestal section
36,3836.38
RadträgerWheel carrier
4040
DurchbrechungBreakthrough
4242
kleine Durchbrechungsmall breakthrough
4444
Batteriebattery
4646
Antriebsraddrive wheel
4848
Antriebdrive
5050
StützradSupport wheel
5252
elektrische Komponenteelectrical component
5656
elektrische Kabelelectrical cables

Claims (10)

  1. An industrial truck with a load part and a battery-powered drive part that comprises a driver standing platform and a frame that is equipped with a transverse metal plate (14) and two wheel carriers (36, 38), wherein a battery standing platform (30) is provided between the wheel carriers (36, 38), characterized in that the frame is further equipped with a rear wall (28) facing the load part, in that a battery storage region (32) is formed below a standing platform mounted on the frame such that the transverse metal plate forms a standing surface for the battery standing platform (30), wherein the battery (44) can be shifted from its battery standing platform (30) into the battery storage region (32), wherein the battery standing platform and the battery storage region lie in one plane.
  2. The industrial truck according to claim 1, characterized in that the transverse metal plate (14) also extends into the battery storage region.
  3. The industrial truck according to claim 1 or 2, characterized in that the transverse metal plate (14) forms a base for the drive part.
  4. The industrial truck according to any one of claims 1 to 3, characterized in that the wheel carriers are formed as a cuboid elevation with respect to the transverse metal plate (14), wherein the two wheel carriers (36, 38) each have side walls that are parallel to one another and that laterally delimit the battery standing platform (30) up to the height of the wheel carriers (36, 38).
  5. The industrial truck according to any one of claims 1 to 4, characterized in that the battery standing platform (30) is delimited on its side facing the load part by the rear wall (28) of the frame.
  6. The industrial truck according to any one of claims 1 to 5, characterized in that electrical terminals of the battery are connected via cables to electrical consumers in the drive part and in that the length of the cables (56) is at least such that the battery can be pushed onto the battery storage region (32) without disconnecting the cables.
  7. The industrial truck according to any one of claims 1 to 6, characterized in that the depth of the battery in the vehicle longitudinal direction corresponds to the depth of the wheel carriers (36, 38) in the vehicle longitudinal direction.
  8. The industrial truck according to any one of claims 1 to 7, characterized in that one of the wheel carriers carries a drive wheel with its drive and the other wheel carrier (36, 38) carries a support wheel.
  9. The industrial truck according to claim 8, characterized in that an electrical component (52) is mounted on the side of the vehicle with the drive wheel (56).
  10. The industrial truck according to claim 8 or 9, characterized in that a hydraulic component (54) is mounted on the side of the vehicle with the support wheel.
EP20153501.0A 2019-01-25 2020-01-24 Industrial truck with a battery-powered driven part Active EP3686150B1 (en)

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DE102019101866.8A DE102019101866A1 (en) 2019-01-25 2019-01-25 Industrial truck with a battery-powered drive part

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EP3686150A1 EP3686150A1 (en) 2020-07-29
EP3686150B1 true EP3686150B1 (en) 2023-09-27

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113103909A (en) * 2021-04-02 2021-07-13 深圳市鑫煜控股有限公司 Small-size power station battery package lifting charging mechanism that trades

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700272A1 (en) * 1997-01-07 1998-07-16 Still & Saxby Sarl Fork-lift floor truck

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2331054B (en) * 1997-11-06 2001-08-08 Lansing Linde Ltd Industrial truck with a battery block
DE10311344A1 (en) * 2003-03-14 2004-09-23 Still S.A.R.L. Mitgängergabelhubwagen
DE102007004481A1 (en) * 2007-01-30 2008-07-31 Jungheinrich Ag Industrial truck for riding operation, has platform pivoted in frame around vertical axis, drive wheel supported in lower side of platform, and operating elements provided at high-standing part attached to platform
DE102010035817A1 (en) * 2010-07-30 2012-02-02 Linde Material Handling Gmbh Warehouse trucks, in particular tractors or order pickers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700272A1 (en) * 1997-01-07 1998-07-16 Still & Saxby Sarl Fork-lift floor truck

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EP3686150A1 (en) 2020-07-29

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