Demountable device for transporting objects and lifting people

Abstract

The invention relates to a demountable platform for transporting objects and lifting people. The problem addressed by the invention is that of improving its handling, in particular facilitating the movement of the device and other material without further aids. The problem is solved by a device comprising a chassis (1) with at least four wheels, a vertical lifting device (2), at least one drive module which can be detachably connected to the chassis (1) and which comprises at least one electric motor and a drive device, in particular a wheel, chain and / or belt, and a work platform module which can be detachably connected, in particular is connected, to the vertical lifting device (2), wherein the chassis (1) consists of at least two detachably connectable, in particular mutually connected, chassis modules which each have at least two wheels, and wherein the chassis modules (15) are designed in such a way that a first of the at least two chassis modules (15) can be inserted into the second of the at least two chassis modules (15) for the purpose of releasable connection to a second, other than the first, of the at least two chassis modules (15), and can be releasably secured in the inserted state.

Description

[0001] Demountable device for transporting objects and lifting people

[0002] The invention relates to a demountable platform for transporting objects and lifting people.

[0003] Transport vehicles, work platforms, and work platforms are well known. Ladders and mobile scaffolding are also used to transport people to higher places. However, when used indoors, especially on upper floors, transport is problematic due to the high weight. One solution is to design the device so it can be disassembled.

[0004] For example, a demountable work platform is known from DE 20 2017 002208 U1. Devices that can be used for both transport and lifting are also known, for example, from DE 10 2018 110802 B3, US 2018 / 134206 A1, DE 20 2004 015422 U1, and DE 10 2008 023645 A1. The object of the invention is to improve handling, in particular to facilitate the movement of the device and / or other material without additional aids, to make parts even easier to transport, and / or to enable resource-saving continuous operation.

[0005] Although the work platform of DE 20 2017 002208 U1 can be disassembled and the individual parts can be carried by humans, assembly is cumbersome and there are no tools available for transporting the parts and / or materials, at least not when the device is not assembled. The present invention is intended to remedy this situation by enabling easy transport.

[0006] Although the previously known work platforms have motors for moving the work platform, they result in heavy parts, extensive measures in the event of defects and cannot offer any advantages in the transport of individual parts of the device.

[0007] The object is achieved by a device comprising a chassis with at least four wheels, a vertical lifting device, at least one drive module which can be detachably connected to the chassis, in particular is connected, and which comprises at least one electric motor and a drive device, in particular a wheel, chain and / or belt, and a work platform module which can be detachably connected to the vertical lifting device, in particular is connected, wherein the chassis consists of at least two detachably connectable, in particular interconnected, chassis modules, which each have at least two wheels, and wherein the chassis modules are designed such that a first of the at least two chassis modules can be inserted into the second of the at least two chassis modules for the purpose of detachably connecting it to a second of the at least two chassis modules other than the first, and can be detachably secured in the inserted state. Detachably connectable or"Releasably connected" means, in particular, that the connection can be released and reconnected multiple times, in particular as often as desired and / or non-destructively. In the connected state, a rigid connection exists, preventing translation and / or rotation of the connected parts relative to each other. In particular, the parts and / or the connection are designed so that release and / or connection can be carried out without tools and / or by hand. Quick-release couplings, quick-release levers, and / or levers with asymmetrical pressure elements can be used for this purpose.

[0008] The at least two chassis modules in particular each have at least two wheels, in particular spaced apart from one another by more than the diameter of their wheels, in particular spaced apart by at least 50 cm, which wheels are in particular fixedly attached to the remaining chassis modules, in particular not detachable without tools, and in particular are fixedly connected to a frame of the chassis module with respect to translation.

[0009] At least one, in particular at least two, of the at least two chassis modules each have a rigid frame made of rigidly connected at least two spaced-apart longitudinal struts and at least two transverse struts.

[0010] In particular, the chassis, with its at least four wheels, which are interconnected via the chassis, extends a maximum of 80 cm beyond the wheels, in particular in the direction of the vertical lifting direction away from the chassis. In particular, the chassis establishes a connection between the at least four wheels below the vertical lifting device and / or below the work platform and / or a maximum of 50 cm from the wheels and / or directly above the edges and / or via wheel suspensions of the wheels. In particular, the wheels of at least one, in particular at least two, of the at least two chassis modules are directly connected to the frame via wheel suspensions.

[0011] Particularly advantageously, the device comprises two drive modules. Each drive module has, in particular, at least one drive means, such as a wheel, chain, or belt, as well as at least one electric motor and, in particular, a device and / or connections for controlling the electric motor.

[0012] In particular, the device has exactly two electric motors for propulsion and steering, either a propulsion and a steering motor combined in one drive module or two propulsion motors, in particular in two separate drive modules. This allows for easy replacement of defective drive modules.

[0013] In particular, the at least one drive module has at least one quick-coupling electrical connector for electrically coupling the drive module to quick-coupling electrical connectors of the chassis, which are and / or can be electrically connected in particular to quick-coupling electrical connectors of the chassis for the electrical connection to the at least one battery module.

[0014] Preferably, the chassis modules do not have a drive to drive their wheels, since these are arranged in the drive modules, which enables easy transport and / or replacement.

[0015] Particularly advantageously, the device comprises at least one battery module, in particular having at least one rechargeable battery and in particular at least two wheels and / or a handle, in particular one that can be extended telescopically and / or folded down, for transporting the battery module separately from the rest of the device. In particular, the battery module has at least one quick-coupling electrical connector for electrical connection to at least one chassis module and / or drive module. This allows the battery module to be easily replaced. Preferably, the chassis modules are designed such that the first can be inserted at least 5 cm deep into the second for releasable fastening to the second and / or wherein the first chassis module has two insertion sections and the second chassis module has two receiving sections, each for receiving a respective insertion section.

[0016] This allows a simple, reliable, and easily manufactured and detachable connection to be achieved, which can ensure sufficient stability. Advantageously, a tensioning, locking, and / or clamping device is configured and arranged on at least one, in particular each, receiving section and / or insertion section in order to prevent and / or impede the separation of an insertion section inserted into a receiving section from the receiving section. The tensioning, locking, and / or clamping device is mechanically coupled, in particular, to an actuating section configured to move the tensioning, locking, and / or clamping device and is particularly suitable for being actuated by the human hand.Advantageously, the tensioning, locking, and / or clamping device is designed to be pre-tensioned, in particular pre-tensioned in a position in which it prevents and / or impedes the separation of an insertion section inserted into a receiving section from the receiving section, and / or an actuating section is configured to move the tensioning, locking, and / or clamping device counter to the pre-tension. In particular, the tensioning, locking, and / or clamping device is configured and arranged such that it is moved counter to the pre-tension when an insertion section is inserted into a receiving section, in particular the section on which the tensioning, locking, and / or clamping device is arranged. This allows for simple assembly and reliable protection against separation, which is nevertheless easy to deactivate.

[0017] Further advantageously, the first and second chassis modules each have two parallel, spaced-apart longitudinal struts and at least one transverse strut rigidly connected and / or connectable to the longitudinal struts. This allows for a simple, even more stable construction.

[0018] Advantageously, the first or second chassis module comprises two parallel, spaced-apart longitudinal struts and two transverse struts rigidly connected and / or connectable thereto to connect the longitudinal struts, and / or the other of the first and second chassis modules comprises at least one transverse strut to which the two insertion or receiving sections are rigidly connected. This allows for a structurally simple, material-saving, yet practical design.

[0019] Particularly advantageously, the device is designed such that the at least one drive module is detachably connected to the longitudinal struts indirectly, or preferably directly, and / or can be detachably connected. This allows for particular stability and / or good driving characteristics.

[0020] Preferably, the first and / or second chassis module and the at least one drive module are configured such that, when the first and second chassis modules are separated, the at least one drive module can be secured to the chassis module in a first securing arrangement such that the chassis module can be moved on a flat surface by the at least one motor using the at least one drive module secured to it. This allows the chassis module to be easily moved even when the chassis is disassembled and, if necessary, even used to transport other parts, for example, the device and / or other material.

[0021] Advantageously, the chassis and the at least one drive module are designed such that, in the assembled state of the chassis, the at least one drive module can be releasably secured to the chassis module such that the chassis can be moved on a flat surface by the at least one motor using the at least one drive module secured thereto. Advantageously, the first and / or second chassis module, the at least one drive module, and / or the chassis are designed such that the drive module in the first securing arrangement is also configured and arranged to move the assembled chassis and / or the assembled device on a flat, horizontal surface by the at least one motor.

[0022] Particularly advantageously, the first and / or second chassis module is / are designed such that it can be used as a wheelbarrow and / or has two wheels and two spaced-apart longitudinal struts, each with an exposed handle end, wherein the handle ends in particular represent and / or have insertion or receiving sections. Thus, the chassis can be easily transported even without drive modules and can even be used to transport additional parts, for example, the device or other material.

[0023] Preferably, the first and second chassis modules and / or the device are designed such that, in particular with at least one drive module mounted on one of the chassis modules, they can be pushed horizontally into one another for detachable connection, in particular to form the chassis, when placed on a flat and horizontal surface. The first and second chassis modules are designed in particular such that the first and / or second chassis module has / have at least one foldable support means and the device is designed in particular such that when the chassis modules are pushed horizontally into one another, the at least one support means folds down and / or longitudinal struts of the first and second chassis modules come to lie parallel to one another. This enables simple assembly, in particular without vertical alignment efforts and / or without holding up a chassis module.In particular, the device is designed such that, with the drive module mounted and the support means unfolded, both chassis modules stand stable on a flat surface and can be pushed into one another, in particular by moving a chassis module using the at least one drive module. This further simplifies assembly. Particularly advantageously, the device, the chassis and / or the chassis modules are designed such that, when the chassis modules are separated from one another, the at least one foldable support means automatically unfolds such that it is suitable for supporting the chassis module on which it is arranged, in particular on a horizontal flat surface on which the chassis is separated horizontally when placed.

[0024] Particularly advantageously, the chassis and / or the chassis modules are designed such that each chassis module has at least one longitudinal strut, in particular at least or exactly two longitudinal struts, which are designed and / or arranged in particular such that a longitudinal strut, also inner longitudinal strut of a chassis module, in particular slide-in chassis module, of the at least two chassis modules can be pushed into a longitudinal strut of another of the at least two chassis modules, in particular receiving chassis module, in particular when the chassis modules are pushed into one another to form the chassis, in particular when the chassis modules are pushed into one another to form the chassis.

[0025] Longitudinal struts can be formed, for example, from tubes or slotted tubes, in particular square tubes, in particular slotted, and / or from metal. In particular, at least one longitudinal strut, in particular of the receiving chassis module, is provided with a longitudinal slot and / or the outer longitudinal struts are each provided with at least one longitudinal slot. Longitudinal slots are, in particular, arranged and designed such that connecting elements of the inner longitudinal strut and / or the longitudinal strut of the slide-in chassis module extend through them in the inserted state and / or during formation of the chassis, in order to connect the longitudinal strut to the rest of the chassis module with the inner longitudinal strut and / or slide-in chassis module.In particular, the slide-in chassis module and / or the inner longitudinal strut thus has connecting elements in order to connect the at least one, in particular inner, longitudinal strut to the rest of the chassis module, in particular in such a way that insertion into a, in particular outer, longitudinal strut with a longitudinal slot is possible.

[0026] Several, in particular two, chassis modules can also be designed both as a slide-in chassis module and as a receiving chassis module and / or with both inner and outer longitudinal struts and, for example, each have a slotted longitudinal strut and one with connecting elements.

[0027] Inner longitudinal struts have, in particular at a free end or at the end which faces the other chassis module when the chassis modules are pushed into one another to form the chassis, a taper and / or a centering means and / or a centering section which in particular makes it easier to push the inner longitudinal strut into the outer longitudinal strut.

[0028] In particular, the chassis comprises at least two pairs each having an inner and an outer longitudinal strut and / or at least two inner and at least two outer longitudinal struts, which are in particular designed such that each inner one is inserted into an outer one when the chassis is formed.

[0029] It is particularly advantageous for the longitudinal struts to be designed in such a way that when longitudinal struts are pushed into one another they form-fit against one another on at least two sides, in particular in pairs lying opposite one another, in particular on three or four sides. When in contact, the inner longitudinal strut bears in particular against the inside of the outer longitudinal strut. This contact can also be ensured by sliding means, such as rollers or plastic elements on the longitudinal struts, which reduce friction during insertion. For example, the inserted inner longitudinal strut can have rollers which roll against the inside of the outer longitudinal strut when inserted, ensuring a form-fit contact at several points. This contact does not have to be flat; advantageously, it is provided on two opposite sides at at least three spaced-apart points.

[0030] The form-fitting fit ensures particular stability of the chassis.

[0031] Advantageously, the first and / or second chassis module has / have a receptacle for a battery module and electrical connection means for electrically connecting the battery module and drive module. This allows for a simple modular design.

[0032] Particularly advantageously, the device has a total weight in the range of less than 200 kg, in particular in the range of 100 kg to 170 kg, and / or each module has a maximum weight of 45 kg, preferably no more than 20 kg. This makes the disassembled device particularly portable. The chassis modules are then particularly suitable for use as a wheelbarrow, even to carry additional weight.

[0033] The device preferably comprises a control device for controlling the at least one drive module, configured so that the device can independently travel a predetermined route or a predetermined pattern in a room. This allows for particularly efficient work, for example, when painting the ceiling. Particularly advantageously, the device comprises means, in particular joysticks, for controlling the drive units and the vertical lifting device (in particular upwards and downwards).Particularly advantageously, the control device is designed such that it controls the at least one drive module such that the device travels on a base area, in particular a quadrangular, rectangular and / or square, in a serpentine or snail pattern with a predetermined lane spacing and / or overlap and / or predetermined speed. In particular, the device has at least one input means and / or a wireless interface via which it receives specifications and / or changes for lane spacing and / or speed. In addition, the device has, in particular, means for detecting obstacles and / or fluctuations of the work platform and is, in particular, configured to reduce the speed and / or stop the travel when a distance to an obstacle is exceeded and / or when a predetermined fluctuation of the work platform is exceeded.Particularly advantageously, the travel can be carried out in steps, so that a short travel section is always followed by a brief standstill, and these movement states alternate repeatedly, wherein, in particular, the distance of the travel section and / or the standstill time are predetermined and / or can be predetermined and / or changed via the input means and / or interface. In an alternative embodiment, the control device is designed such that the standstill times are not predetermined and / or are predetermined as infinite, and / or the standstill can be ended by a user input via the input means and / or the interface. This enables particularly ergonomic and effective working.

[0034] It is particularly advantageous if the work platform is designed as a basket and / or with at least one safety device to prevent persons standing on the work platform from falling. This increases safety.

[0035] Preferably, the vertical lifting device and at least parts of the work platform can be stowed on the chassis in such a way that a flat surface for depositing material can be created, and when the chassis is placed on a flat horizontal surface, a flat horizontal surface for depositing material, and wherein the device in particular has a detachable component of the work platform that can be arranged as a cover parallel to the surface on material for covering. This allows for easy transport. Advantageously, at least one chassis module, in particular at least two chassis modules, each have at least one securing device, in particular respectively opposite securing devices, designed and arranged to be able to tension at least one tensioning belt over the chassis module, in particular perpendicular to the longitudinal extent of the longitudinal struts, in particular in order to be able to lash down objects placed on the chassis module.

[0036] Possible embodiments and advantageous configurations are shown purely schematically and not restrictively in the following figures, which show:

[0037] Fig. 1 : a perspective view of a device according to the invention and

[0038] Fig. 2: a view of the disassembled device from Fig. 1, but without basket grid and shelf.

[0039] Figure 1 shows a perspective view of a device according to the invention in the assembled, ready-to-use state.

[0040] Visible are a chassis 1, two drive modules 4 mounted on it, of which only one is visible, and a work platform 3. The chassis 1 has a foldable step 12, which makes it easier to access the work platform from the ground. Below the work platform 3 is the vertical lifting device 2, for example a scissor lift. The work platform 3 is designed as a basket with a basket grid 7 and plate 10. This creates a safe lounge area. The basket grid 7 has two lockable door wings that allow access from the step 12. The plate 10 stiffens the basket and can serve as a cover when disassembled. A shelf is arranged at the top of the platform. The chassis 1 has freely pivoting wheels 9 at each of its four corners. It also has a border 11, which can make it more difficult for objects to fall off when being transported.

[0041] The drive modules each have an electric motor and a drive wheel 8. The drive wheels can be driven for movement. The oppositely arranged drive wheels can be driven at different rotation speeds and angles to control the travel path. The power supply comes from a battery in a battery module (not shown here) housed in the chassis.

[0042] Fig. 2 shows the components of the device from Fig. 1, with the exception of the basket grid and the shelf, partly separated, partly still connected.

[0043] The chassis is divided into two chassis modules 15, 16. Each has two longitudinal struts 17, 18, with the longitudinal struts of a chassis module each connected to each other via two cross struts. The first chassis module 16 (left in the figure) has a cross strut at the end facing away from the second chassis module 15 above the longitudinal struts and a cross strut 24 near the drive modules. Also arranged above each of the longitudinal struts is a receiving section 20, into which a respective insertion section 19 of the second chassis module 15 can be inserted to form the chassis.

[0044] Two drive modules 4 are also attached to the first chassis module 16, one on each longitudinal strut 17. The drive wheels 8 and the two freely pivoting wheels 9 of the first chassis module 16 ensure that the chassis module stands securely with the longitudinal struts 17 parallel to the support surface. The drive modules even enable electrical movement. The free ends of the longitudinal struts 17, which form handle ends 22, can also be used to lift the longitudinal struts at the free end and to use the first chassis module 16 like a wheelbarrow, moving it on the freely pivoting wheels 9. Objects can be placed on the longitudinal struts and transported, while the structure on the longitudinal struts prevents them from slipping off.

[0045] The drive wheels 8 and the freely pivoting wheels 9 arrange the longitudinal struts 17 in such a way that when placed on a flat surface, the chassis modules 15, 16 can be pushed into one another without having to lift anything.

[0046] The second chassis module also has two longitudinal struts 18, which are also arranged in parallel. They each have handles at their free ends, which are intended for gripping, allowing the second chassis module 15 to be used like a wheelbarrow, where it runs on two freely pivoting wheels 9. Objects can be placed on it and transported. The border 11 provides protection against slipping.

[0047] The second chassis module further includes a compartment with a flap 23 for accommodating a battery module 5. The battery module 5 has two battery module wheels 14 and a foldable handle 13. This allows the battery module to be moved ergonomically by pushing or pulling. The handle can be rotated around its attachment point on the housing and thus applied to the module, allowing it to be inserted through the flap 23 into the second chassis module 15 and picked up there, saving space.

[0048] The second chassis module 15 also includes a vertical lifting device, not shown, which can be configured, for example, as a scissor lift beneath the work platform 3 to move the work platform 3 vertically. The plate 10 can be secured to the work platform 3 or the vertical lifting device. For this purpose, the second chassis module has a plate flap 24 through which the fastenings for the plate 10 can be reached. The second chassis module also has a foldable support element 21 on each of its two longitudinal struts 18. When the support elements 21 are folded out, as shown, they, together with the freely pivoting wheels of the second chassis module 16, ensure that the longitudinal struts 18 are arranged parallel to the standing surface and that the first chassis module 15 can be easily inserted.The second chassis module has receiving sections (not shown) for accommodating the insertion sections 19 of the first chassis module. The support elements 21 are arranged and designed such that they fold down when the first chassis module is inserted into the second. As a result, the support elements do not impede the movement of the chassis. When the chassis modules 15, 16 are pulled apart, they fold out again.

[0049] List of reference symbols

[0050] 1 chassis

[0051] 2 vertical lifting device

[0052] 3 work platform

[0053] 4 Drive module

[0054] 5 Battery module

[0055] 6 Chassis module

[0056] 7 basket grids

[0057] 8 drive wheel

[0058] 9 wheels, freely pivoting

[0059] 10 plates

[0060] 11 Border

[0061] 12th level

[0062] 13 Handle

[0063] 14 Battery module wheel

[0064] 15 First chassis module

[0065] 16 Second chassis module

[0066] 17 Longitudinal strut

[0067] 18 Longitudinal strut

[0068] 19 Insertion section

[0069] 20 Recording section

[0070] 21 Support element

[0071] 22 Handle end

[0072] 23 flap

[0073] 24 plate flap

[0074] 25 Cross brace

Claims

Claims 1. Device comprising a chassis (1) with at least four wheels, a vertical lifting device (2), at least one drive module (4) which can be detachably connected, in particular connected, to the chassis and which comprises at least one electric motor and a drive device, in particular a wheel (8), chain and / or belt, and a work platform module (3, 7, 10) which can be detachably connected, in particular connected, to the vertical lifting device (2), wherein the chassis consists of at least two detachably connectable, in particular interconnected, chassis modules (15, 16), each having at least two wheels, and wherein the chassis modules are designed such that the first of the at least two chassis modules can be inserted into the second of the at least two chassis modules for the purpose of detachably connecting it to a second of the at least two chassis modules other than the first, and can be detachably secured in the inserted state.

2. Device according to claim 1, comprising two drive modules.

3. Device according to one of the preceding claims, comprising at least one battery module (5), in particular having a rechargeable battery, at least two wheels (14) and a handle (13), in particular a telescopically extendable and / or foldable handle.

4. Device according to one of the preceding claims, wherein the chassis modules have no drive for driving their wheels.

5. Device according to one of the preceding claims, wherein the chassis modules are designed such that the first can be inserted at least 5 cm deep into the second for releasably securing it to the second and / or wherein the first chassis module has two insertion sections (19) and the second chassis module has two receiving sections (20) for receiving one insertion section each.

6. Device according to one of the preceding claims, wherein the first or the second chassis module has two parallel, spaced-apart longitudinal struts (17, 18) and two transverse struts (24) rigidly connected and / or connectable thereto for connecting the longitudinal struts, and the other of the first and second chassis modules has at least one transverse strut to which the two insertion or receiving sections are rigidly connected, 7. Device according to one of the preceding claims, wherein the first and the second chassis module each have two parallel, spaced-apart longitudinal struts and at least one transverse strut rigidly connected and / or connectable thereto for connecting the longitudinal struts 8. Device according to one of the preceding claims, wherein the first and / or the second chassis module and the at least one drive module are designed such that, in the separated state of the first and second chassis module, the at least one drive module can be fixed to the chassis module such that the chassis module can be moved on a flat surface by the at least one motor by means of the at least one drive module fixed to it.

9. Device according to one of the preceding claims, wherein the chassis and the at least one drive module are designed such that, in the assembled state of the chassis, the at least one drive module can be fixed to the chassis module such that the chassis can be moved on a flat surface by the at least one motor by means of the at least one drive module fixed to it.

10. Device according to one of the preceding claims, wherein the first and / or the second chassis module are designed such that they can each be used as a wheelbarrow and / or two wheels and two spaced-apart longitudinal struts, each with an exposed handle end (22), wherein the handle ends in particular represent and / or have insertion or receiving sections.

11. Device according to one of the preceding claims, wherein the first and the second chassis module and / or the device are designed such that they, in particular with at least one drive module mounted on one of the chassis modules, can be pushed horizontally into one another for detachable connection, in particular to form the chassis, when placed on a flat and horizontal surface, wherein the first and the second chassis module are designed in particular such that the first and / or second chassis module has / have at least one foldable support means and the device is designed in particular such that when pushed together horizontally the at least one support means folds down and / or longitudinal struts of the first and second chassis module come to lie parallel to one another.

12. Device according to one of the preceding claims, wherein the first and / or the second chassis module have a receptacle for a battery module and electrical connection means for electrically connecting the battery module and the drive module.

13. Device according to one of the preceding claims, wherein the device has a total weight of maximum 200 kg and / or each module has a maximum weight of maximum 45 kg, preferably maximum 20 kg.

14. Device according to one of the preceding claims, comprising a control device for controlling the at least one drive module, so that the device follows a predetermined route or pattern in a room.

15. Device according to one of the preceding claims, wherein the working platform is designed as a basket (7).

16. Device according to one of the preceding claims, wherein the vertical lifting device and at least parts of the work platform can be stowed on or in the chassis in such a way that a flat surface can be created and, when the chassis is placed on a flat horizontal surface, a flat horizontal surface for depositing material, and wherein the device in particular has a detachable component of the work platform that can be arranged as a cover parallel to the surface on material for covering.

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