pallet truck

Abstract

Pallet truck (1), in particular low-lift pallet truck, with a battery-electric drive system, with a drive part (2) and a load part (3), wherein a vertical frame section (9) is arranged between the drive part (2) and the load part (3), wherein the vertical frame section (9) accommodates a storage container (11) facing the load part (3), characterized in that the storage container (11) is formed by a housing (11a) and a lid (11b) and the storage container (11) accommodates a charger (15) with a charging cable and / or a power cable.

Description

[0001] The invention relates to a lifting truck, in particular a low-lift truck, with a battery-electric drive system and with a drive part and a load part, wherein a vertical frame section is arranged between the drive part and the load part, wherein the vertical frame section receives a storage container facing the load part.

[0002] DE 20 2007 001 040 U1 discloses a pallet truck in which a plastic tray is embedded in the top of a housing that houses a battery, serving as a container for smaller objects. If the pallet truck has a battery-powered drive system and a charger for charging the battery is built into the pallet truck, the plastic tray accommodates a power plug. A power cable can be routed through an opening in the bottom of the plastic container, with a storage box provided for the power cable in the housing.

[0003] However, such a plastic tray only has a small storage volume to accommodate accessories and, due to its arrangement in the top of the housing, causes a high construction effort, as the housing must be provided with a corresponding recess.

[0004] From DE 1 932 507 A, a pallet truck of this type is known in which the load part has a vertical frame section which accommodates a storage container designed as a battery container in which the traction batteries of the pallet truck are arranged.

[0005] US 2006 / 0 231 301 A1 discloses in the Fig. 1 a pallet truck with a battery-electric drive system, in which a vertical bracket is arranged between a battery compartment and the load forks. Above the battery compartment, Fig. 1 shows a component not described in detail, which has trough-shaped recesses open at the top.

[0006] DE 196 22 694 A1 discloses a pallet truck with a battery-electric drive system and a drive section and a load section, which is provided with a battery compartment in which a traction battery is located. The battery compartment is provided with a hinged lid.

[0007] The present invention is based on the object of providing a lifting truck of the type mentioned at the outset, which is provided with a storage container for accessories having a large storage volume at a low manufacturing cost.

[0008] The object is achieved according to the invention in that the storage container is formed by a housing and a lid, and the storage container accommodates a charger with a charging cable and / or a power cable. According to the invention, a separate storage container formed by a housing and a lid is thus provided, which is arranged within the dimensions of the frame section and faces the load part. The storage container can extend across the entire width of the vehicle, thereby easily achieving a large storage volume for the storage container.This allows for a storage container with a large storage volume to be provided without additionally increasing the installation space of the lift truck in the longitudinal direction of the vehicle. This container offers good accessibility via the lid, since the orientation of the storage container toward the load section means that access to the storage container is not hindered by a drawbar or other components on the drive unit. According to the invention, the storage container serves to accommodate a charger with a charging cable and a power cable.

[0009] According to a preferred embodiment of the invention, the frame section is formed by a bracket consisting of two vertical bracket sections spaced apart in the transverse direction of the vehicle and a horizontal bracket section connecting the vertical bracket sections. The storage container is arranged within the space defined by the bracket. The storage container thus utilizes the previously unused installation space defined by the bracket-shaped frame section.

[0010] If the housing of the storage container according to a further development of the invention extends from the frame section in the direction of the drive part, the storage volume of the storage container can be further increased in a simple manner.

[0011] A hinged and / or lockable lid is particularly advantageous. With a hinged and lockable lid, the storage container can be easily locked and protected against unauthorized access.

[0012] The lid is conveniently mounted on the base of the housing so that it can pivot around a horizontal pivot axis. This ensures good accessibility to the storage container when the lid is open.

[0013] A simple attachment of the storage container with little construction effort can be achieved if the storage container is attached to the frame section.

[0014] According to a further development of the invention, the storage container is arranged above a battery receptacle arranged in the space defined by the bracket, which accommodates a battery for powering the battery-electric drive system of the pallet truck. In a pallet truck with a battery-electric drive system, the battery and the storage container can be arranged within the space defined by the bracket-shaped frame section, while requiring minimal space.

[0015] If the storage container is formed in one piece with the battery holder, the construction effort for the storage container and its attachment to the frame section can be further reduced.

[0016] Particular advantages arise if, according to one embodiment of the invention, the storage container accommodates one or more of the following components: • A connecting cable and / or a wiring harness and / or plug connections for connecting the battery, a drive and / or a lifting drive and / or control electronics and / or other electronic components of the pallet truck.

[0017] The storage container also houses all other electrical connections for the electronic components of the lift truck, such as a traction drive, a lifting drive, power electronics, and an operating device mounted on a drawbar. This simplifies maintenance of the lift truck according to the invention, as the electrical connections are easily accessible when the lid is open.

[0018] According to a practical embodiment of the invention, the storage container is designed as a plastic component. Such a storage container can be easily manufactured and its shape can be adapted to the space defined by the bracket in order to achieve a large storage volume.

[0019] Further advantages and details of the invention are explained in more detail with reference to the exemplary embodiments shown in the schematic figures. Fig. 1 a lifting truck according to the invention in a perspective view, Fig. 2 the pallet truck of the Fig. 1 with an open storage container.

[0020] In the Fig. 1 shows a pallet truck 1 according to the invention, designed as a low-lift truck, with a battery-electric drive system. The pallet truck 1 has a drive part 2 and a load part 3 that is vertically movable relative to the drive part 2 in a manner not shown. The drive part 2 comprises a bow-shaped frame section 4, on which a drive unit having a drive wheel 5 is steerably arranged. The drive unit comprises an electric drive motor (not shown) for driving the drive wheel 5. The pallet truck 1 is steered by means of a drawbar 6 connected to the drive wheel 5. The drive wheel 5 can be designed as a pneumatic tire.

[0021] The load part 3 includes two load arms 7a, 7b, which are supported on a track by means of vertically liftable and lowerable load rollers 8a, 8b, whereby loads such as pallets, wire mesh boxes or small parts containers can be picked up, lifted and transported with the load arms 7a, 7b.

[0022] A vertical frame section 9 is arranged between the drive part 2 and the load part 3. The frame section 9 is designed as a bracket formed by vertically arranged bracket sections 9a, 9b, spaced laterally in the transverse direction of the vehicle, and a horizontal bracket section 9c connecting the bracket sections 9a, 9b. The bracket is bent forward in the vertically upper region toward the drive part 2.

[0023] The bracket sections 9a, 9b are placed on the load arms 7a, 7b.

[0024] The bow-shaped frame section 4 of the drive part 2 and the load part 3 formed by the load arms 7a, 7b and the frame section 9 are formed from one-piece hollow profiles, for example, tubular profiles, with a closed cross-section, whereby the lifting truck 1 according to the invention has high strength and stability with a low dead weight and thus a robust construction. In conjunction with the drive wheel 5 designed as a pneumatic tire, the lifting truck 1 according to the invention is particularly suitable for applications outside of warehouses and production facilities with an uneven road surface, for example on streets and squares.

[0025] Within the space of the vertical frame section 9 spanned by the bracket sections 9a, 9b and 9c, a battery holder 10 is arranged, which serves to hold a battery supplying the electric drive system of the lifting truck 1.

[0026] According to the invention, a storage container 11 is arranged above the battery holder 10, which is also arranged within the space of the bracket defined by the bracket sections 9a, 9b, and 9c and is thus received by the frame section 9. The storage container 11 can completely fill the installation space in the transverse direction between the vertical bracket sections 9a, 9b, thereby achieving a large storage volume of the storage container 11.

[0027] The storage container 11 faces the load part 3 and is formed by a housing 11a and a lid 11b. The lid 11b can be folded about a horizontal pivot axis 12 in the bottom area of ​​the housing 11b. Furthermore, the lid 11b is lockable, for which purpose a closure element 13, for example a lockable lock, is provided. The lid 11b is adapted to the curved shape of the bracket and is also bent toward the drive part 2.

[0028] In the Fig. 2, the cover 11b is opened about the pivot axis 12 in the direction of the load part 3 into the open position.

[0029] It can be seen that the front wall of the housing 11a facing the drive part 2 is arranged essentially vertically. The housing 11a of the storage container 11 thus extends in the direction of the drive part 2. As a result, the housing 11a fully utilizes the installation space of the bracket bent toward the drive part 2 in the longitudinal direction of the vehicle, thereby further increasing the storage volume of the storage container 11.

[0030] The storage container 11 serves to accommodate a charger 15, which is equipped with a charging cable and a power cable. Furthermore, a connection device 16 is arranged in the storage container 11, in which all electrical connections of the electronic components of the lift truck are located, for example, plug connections, connecting cables, or a wiring harness for connecting the battery, the drive of any lifting drive, a control electronics unit, and an operating device 17 arranged on the drawbar 6, with which the drive and / or the lifting drive can be controlled. Furthermore, the storage container 11 offers additional storage space for accessories or tools.

[0031] The storage container 11 can be formed as a component separate from the battery holder 10 and attached to the frame section 9. Furthermore, it is possible to form the storage container 11 with the battery holder 10 as a single component, whereby the battery holder 10 and the storage container 11 can be attached together to the frame section 9.

[0032] The lid 11b can be pivotally mounted on the storage container 11 or on the frame section 9.

[0033] The arrangement and design of the storage container 11 according to the invention provides a lockable storage container 11 with a large storage volume and good accessibility without requiring additional installation space in the longitudinal direction of the lifting truck 1.

Claims

[1] Lifting truck (1), in particular a low-lift truck, with a battery-electric drive system, with a drive part (2) and a load part (3), wherein a vertical frame section (9) is arranged between the drive part (2) and the load part (3), wherein the vertical frame section (9) accommodates a storage container (11) facing the load part (3), characterized by that the storage container (11) is formed by a housing (11a) and a lid (11b) and the storage container (11) accommodates a charger (15) with a charging cable and / or a power cable. [2] Lifting truck according to claim 1, characterized by in that the frame section (9) is formed by a bracket consisting of two vertical bracket sections (9a, 9b) spaced apart in the transverse direction of the vehicle and a horizontal bracket section (9c) connecting the vertical bracket sections (9a, 9b), wherein the storage container (11) is arranged within the space spanned by the bracket. [3] Lifting truck according to claim 1 or 2, characterized by that the storage container (11) extends from the frame section (9) in the direction of the drive part (2). [4] Lifting truck according to one of claims 1 to 3, characterized by that the lid (11b) is foldable and / or lockable. [5] Lifting truck according to one of claims 1 to 4, characterized by that the cover (11b) is arranged in the bottom region of the housing (11a) so as to be pivotable about a horizontal pivot axis (12). [6] Lifting truck according to one of claims 1 to 5, characterized by that the storage container (11) is attached to the frame section (9). [7] Lifting truck according to one of claims 1 to 6, characterized by that the storage container (11) is arranged above a battery holder (10) arranged in the space spanned by the bracket, which holds a battery for supplying the battery-electric drive system of the lifting truck. [8] Lift truck according to claim 7, characterized by that the storage container (11) is formed integrally with the battery holder (10). [9] Lifting truck according to one of claims 1 to 8, characterized by that the storage container (11) accommodates one or more of the following components: • A connecting cable and / or a wiring harness and / or plug connections for connecting the battery, a drive and / or a lifting drive and / or control electronics and / or other electronic components of the pallet truck. [10] Lifting truck according to one of the preceding claims, characterized by that the storage container (11) is designed as a plastic component.

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