DEVICE FOR TRANSPORTING AN OBJECT

Description

[0001] The invention relates to a device for transporting an object, in particular a toolbox, comprising a main body with a roller unit, wherein a support surface is pivotably connected to the main body about a first pivot axis, to which support surface the object can be connected, wherein a support is pivotably connected to the support surface about a second pivot axis, wherein the device can be moved from a transport position to a table position.

[0002] Transporting heavy objects, especially tools or toolboxes, is often a strenuous task. To simplify the manual transport of such items, they usually have handles or other carrying aids such as loops or straps. For even greater ease of transport, hand trucks with platforms on which the objects can be placed are known from the prior art. These hand trucks typically have wheels, allowing even heavy objects to be transported on level ground with moderate effort by tilting the hand truck. If such objects need to be easily transported in stairwells, stair climbers or stair trolleys are generally used. The basic design of a stair climber is similar to that of a hand truck, but stair climbers usually feature multi-axle wheel hubs.Depending on their dimensions, these continue to rotate as they pass over steps, thereby significantly reducing the force required to transport the object.

[0003] Furthermore, prior art also includes devices that are structurally very similar to the hand trucks described above, but which can be moved from a transport position to a table position. In the transport position, such devices can be used analogously to conventional hand trucks, with a main body serving to hold the object. Unlike conventional hand trucks, however, these devices usually have a support surface that is pivotally connected to the main body. By means of a stand that is pivotally connected to the support surface and / or the main body, the device can be moved into the table position, similar to a folding table. In the table position, these devices then provide a surface for placing the object.

[0004] Document CN 105852407 A discloses such a folding table in which metallic legs are pivotally connected to a table body. A handle, with which the folding table can be moved like a trolley, has a magnetic end piece so that this handle can be easily stored on one of the legs when the table is in a folded position, resulting in an aesthetically pleasing appearance. Further devices of this kind are known from EP 0272797 A1 or US 8,770,597 B1.

[0005] The known devices of the prior art thus have the disadvantage that changing from the transport position to the table position is very complex and the device is not very stable in the table position.

[0006] Therefore, the object of the invention is to provide a device of the type mentioned at the outset in which the disadvantages of the prior art are avoided or at least reduced.

[0007] This problem is solved according to the invention by the features of claim 1. A connecting part is pivotably connected to the support about a third pivot axis, and the connecting part can be coupled to the main body via a coupling point provided on the main body in order to stabilize the device in the table position. Preferred embodiments of the invention are described in the dependent claims.

[0008] An advantage achieved with a device according to the invention is that, in the table position, unintentional folding of the device is prevented and the device is stabilized in the table position. For this purpose, the device comprises several components, in particular a main body, a support surface, a support, and a connecting part.

[0009] The main body typically comprises two parallel side parts, with the first pivot axis located at one upper end of the main body. Preferably, the side parts of the main body are connected by intermediate pieces to increase the stability of the main body. This first pivot axis can be formed by one or more hinges and pivotably connects the support surface to the main body.

[0010] Preferably, two roller units are provided near a lower end of the main body, which make it particularly easy to move the device in the transport position.

[0011] To facilitate easy connection of the object, particularly the toolbox, to the support surface, the support surface is preferably designed as a flat surface. Furthermore, the support surface is pivotally connected to the main body via the first pivot axis and to the support via the second pivot axis. Typically, the first and second pivot axes are positioned at opposite ends of the support surface.

[0012] The support includes at least one upright to brace the bearing surface against a ground. Alternatively, the support can also include several uprights connected by connecting pieces. At least one connecting piece can be equipped with a locking element, in particular a cord. This locking element allows the support to be repositioned.

[0013] The connecting element is usually rod-shaped with a round or angular, particularly square, cross-section and has at one end the third pivot axis, via which the connecting element is connected to the support, and at another end a section which can be detachably fixed to the coupling point of the main body. Alternatively, the connecting element can also be flat, particularly plate-shaped, and have one or more openings.

[0014] Basically, the device is moved from the transport position to the table position by applying a moment about the first pivot axis and pivoting the support surface relative to the main body. In doing so, the support surface changes from the transport position, in which it is oriented essentially parallel to the main body, preferably vertically, to the table position, in which it is oriented essentially parallel to the surface, preferably horizontally. This pivoting movement of the support surface can be performed regardless of whether the object is fixed to the support surface or not.

[0015] Preferably, a moment about the second pivot axis is applied only when the support surface is in the table position. Accordingly, when changing from the transport to the table position, the support and support surface initially perform the pivoting movement together about the first pivot axis and relative to the main body. Preferably, the support surface and support are parallel to each other during this movement. When the support is pivoted about the second pivot axis relative to the support surface, it supports the support surface against the base in the table position, thus increasing the stability of the device. Alternatively, the pivoting movements of the support surface and the support can also occur simultaneously and / or transition smoothly into one another.

[0016] In the table position, the support surface is supported along the first pivot axis by the main body and along the second pivot axis by the support on the base, with the support surface preferably being in a horizontal position and the support preferably being in a vertical position.

[0017] Ultimately, a moment is applied about the third pivot axis to connect the connecting piece, which is linked to the support via this axis, to the coupling point of the main body. In this process, the connecting piece pivots relative to the support and is brought into a substantially horizontal position. Accordingly, the connecting piece braces the support and the main body against each other, acting similarly to the footplate of a Jogl or Rhön table, which is also commonly known as a "Vergeltsgott" (a type of support). This prevents the application of moments about the first and second pivot axes, increases the stability of the device, and locks the support and the main body in the table position. In particular, the connecting piece also prevents any pivoting movement between the support and the main body in the table position.

[0018] When an object, particularly a toolbox, is attached to the support surface in the table position, it exerts a force of gravity on the support surface, this force resulting primarily from gravity and the object's own weight. Since the main body and support are typically clamped against each other by the connecting element in the table position, resulting in exceptional stability, even heavy objects can be attached to the support surface.

[0019] Preferably, in its transport position, the device has a width of 30 cm to 100 cm, particularly preferably 45 cm to 80 cm, a height of 100 cm to 180 cm, particularly preferably 120 cm to 160 cm, and a depth of 40 cm to 120 cm, particularly preferably 50 cm to 100 cm. These dimensions allow the device to be moved particularly easily, even in narrow corridors or stairwells, and through conventional doorways. Furthermore, with these dimensions, the device can also be transported in conventional or even very small elevators.

[0020] It is advantageous that the first, second, and third pivot axes are essentially parallel. This makes it particularly easy to move the device from a transport position to a table position. Each pivot axis connects two components of the device and allows them to pivot relative to each other. Due to the parallel arrangement of the pivot axes, the different components of the device can be pivoted either sequentially or simultaneously. Accordingly, the device can also be moved from the transport position to the table position in a single, smooth motion.

[0021] Preferably, the pivot axes are defined by hinges, in particular fittings, flap hinges, or rolled hinges. A pivot axis can also be defined by several hinges arranged axially spaced along the pivot axis, with two hinges typically being provided. While the hinges can be either separable or non-separable, the use of non-separable hinges is preferred. This prevents unintentional separation of the hinges and improves the stability of the device.

[0022] It has proven advantageous for the support surface and the object to have corresponding, preferably tapered, rails, wherein those of the object can be inserted into those of the support surface to detachably fix the object to the support surface, in particular by means of a positive locking mechanism. This allows the object to be connected to the support surface in a particularly time-saving and simple manner. Such rails usually have corresponding cross-sections to ensure virtually play-free insertion of the rails. One rail is provided with a groove, and the corresponding rail with a preferably complementary spring, whereby the term "spring" can also be understood to mean a pin. To achieve the intended effect, it is irrelevant whether the rails arranged on the support surface are designed with grooves or springs, as long as all rails of the support surface are of the same type.The rails are usually made of metal, especially aluminum.

[0023] Advantageously, the grooved rails have a T-, U-, or L-shaped cross-section to limit movement of the object perpendicular to the support surface. Preferably, the rails are arranged tapering towards the support surface and evenly spaced from an imaginary center line of the support surface, and are provided with grooves. The grooves of the rails are oriented towards the imaginary center line of the support surface. It has also proven advantageous for the rails to protrude at least partially from a surface of the support surface. The rails of the object are preferably also spaced from an imaginary center line of the object and tapered. Furthermore, these rails are provided with springs that point away from the center line of the object and are positively engaged in the rails of the support surface.

[0024] The tapered arrangement limits the translational movement of the object along the imaginary centerline of the support surface, thus defining a final position. The spring-loaded rails are positively engaged in the grooves of the corresponding rails in such a way that they can only be moved translationally in one direction to release the object from the support surface. Preferably, in the transport position, the rails are oriented tapered in the direction of gravity, so that the object, in particular the toolbox, remains connected to the support surface without any further fastening means and can only be released by applying force against gravity.

[0025] Accordingly, a toolbox with a handle can be lowered along the rails of the support surface and connected to it in a carrying position, with the handle pointing upwards. The toolbox has at least one hinge on its underside, which defines a pivot axis to allow the lid of the case to be opened by a pivoting motion. The hinge of the toolbox is preferably positioned at the same end of the support surface as the second pivot axis. This makes it particularly easy to open the toolbox when it is in the table position. The contents of the toolbox typically consist of several tools, which can be detachably secured inside the toolbox by means of retaining devices, in particular rubber bands and / or pockets. Preferably, pockets are provided that are arranged radially to the pivot axis of the hinge and have openings at the ends furthest from the pivot axis.This allows the contents of the toolbox to remain secured in the transport position in the same way as in the carrying position.

[0026] If the object is to be connected to the support surface in the table position, it can be placed on one edge of the support surface before the translational movement takes place along the imaginary center line of the support surface.

[0027] Alternatively, the grooved rails can be closed at one end, with U-, L-, or T-slot rails being used in particular. This eliminates the need for a tapered arrangement of the rails and defines the final position of the object on the support surface.

[0028] It is advantageous if the support has a guide in which the connecting part is at least partially arranged and can be translationally displaced along a longitudinal axis of the support. This allows for a particularly stable table position of the device. The guide has at least one groove for receiving the connecting part. Preferably, the guide comprises two opposing grooves between which the connecting part can be positioned. The guide is usually designed in two parts with a U-shaped cross-section, the two parts of the guide being arranged parallel and spaced apart from each other. In a two-part guide, it has proven advantageous for the grooves of the guide to be positioned facing each other.

[0029] Furthermore, one end of the connecting element can be positioned within the guide of the support. To enable controlled translational movement of the connecting element along the longitudinal axis of the support, the connecting element has one or more guide pins at its end. Preferably, the connecting element is configured with two oppositely oriented guide pins at one end, each of which engages in a groove of the guide. Advantageously, the guide pins have a round cross-section and are rotatable within the grooves of the guide. Thus, the guide pins in the grooves of the guide define the third pivot axis about which the connecting element can be pivoted relative to the support.

[0030] Furthermore, the translationally movable arrangement of the connecting element along the longitudinal axis of the support allows the connecting element to be positioned in a substantially horizontal position when coupled with the main body. This enables particularly efficient locking of the support and / or the main body. Moreover, this locking mechanism is based on the main body and the support being braced against each other via the connecting element.

[0031] It is advantageous that a handle is provided on the support and / or the connecting piece for easy handling of the device. This allows the device to be moved with particularly little effort in the transport position. The connecting piece is usually designed with a handle at one end, in particular a U- or T-shaped handle. Alternatively, the connecting piece can also be flat, especially plate-shaped, and have an opening near one end, so that a handle is formed between the end and the opening of the connecting piece. If the other end of the connecting piece is translationally displaceable in the guide along the longitudinal axis of the support, the connecting piece acts as a height-adjustable handle in the transport position.In the event that the support has no guide and the connecting part is only connected to the support via the third pivot axis, a handle positioned at the top of the main body is provided by the end of the connecting part in the transport position.

[0032] Alternatively, one end of the support can be designed to form the handle. In this case, the end of the support is preferably U- or T-shaped, so that in the transport position it lies close to the top of the main body and can be easily gripped by a user of the device. Furthermore, the support can also be formed from nested tubes, allowing the U-shaped end of the support to be extendable and the height of the handle to be adjusted in the transport position.

[0033] Preferably, the support surface can be detachably fixed to the main body by means of a fastener to hold it in the transport position. This prevents the support surface from unintentionally pivoting into the table position. Fastening elements can be provided on both the main body and the support surface to create a positive-locking connection. Preferably, the fastening elements are hooks and pins, with the hook located on or in the support surface and the pin on the main body. It has proven advantageous to provide a recess on the underside of the support surface in which the hook is rotatably mounted. To allow the hook to rotate, it is usually connected via a shaft to a handle, in particular a lever, on one or both sides of the support surface. In this embodiment, the pin is preferably fixed to the main body.Accordingly, in the transport position, the hook of the support surface can be moved out of the recess via the handle(s) and engage the pin in a form-fitting manner to achieve a releasable fixation of the support surface to the main body. Advantageously, several fasteners, in particular two arranged opposite each other, are provided to ensure particularly reliable fixation of the support surface to the main body.

[0034] Alternatively, a hook-and-loop fastener can be used, in which hooks, eyelets, or recesses are provided on the contact surface and the main body. In particular, tension or snap fasteners are used here, allowing for a particularly quick connection between the contact surface and the main body. These two types of fasteners are primarily known from doors and suitcases.

[0035] Advantageously, the support can be detachably fixed to the base surface via a locking mechanism to hold it in the transport position. This prevents unintentional pivoting of the support in the transport position. For simplicity, the locking mechanisms described above can be used for this purpose. In a preferred embodiment, the hook is also located on the underside of the base surface and connected to a handle via a shaft. If the underside of the base surface is considered as the xy-plane, the hooks for detachably fixing the base surface to the main body, as well as those for detachably fixing the support to the base surface, are preferably spaced apart from each other in both the x and y directions. This allows the locking mechanisms to be operated individually, and the change between transport and table positions can be controlled and performed according to a predetermined pattern.

[0036] It has proven advantageous for the connecting element to have at least one feature, in particular a projection, a bolt, and / or a recess, for coupling with the main body, preferably in a positive-locking manner. This stabilizes the device particularly efficiently in the table position. In the table position, the connecting element extends between the support and the main body. To prevent the application of a moment about the first pivot axis and / or the second pivot axis in the table position, and thus a loss of stability of the device, the connecting element can be provided with a feature, particularly at its end. This feature is preferably designed as a projection, bolt, and / or recess and can be detachably fixed at the coupling point of the main body.Accordingly, the coupling point of the main body is designed accordingly and typically features an edge, a recess, and / or a bolt to enable the connecting element to be positively engaged. In a preferred embodiment, the element is located on the handle of the connecting element and is positively engaged with the main body at the coupling point.

[0037] Advantageously, in the table position, a first connecting line between the first pivot axis and the second pivot axis, a second connecting line between the first pivot axis and the coupling point, a third connecting line between the coupling point and the third pivot axis, and a fourth connecting line between the third pivot axis and the second pivot axis are arranged essentially in a rectangular shape. This allows the table position to exhibit particularly high stability. The connecting lines are usually perpendicular to the respective pivot axes and the coupling point. In a side view of the connecting lines running perpendicular to the pivot axes and the coupling point, the device in the table position has a rectangular shape. This shape ensures high stability of the device in the table position.The first connecting line can run along the support surface, the second along the main body, the third along the connecting part, and the fourth along the support. Although the relative positions of the individual components may depend on their shape, the course of the connecting lines and the positions of the pivot axes and the coupling point generally remain the same.

[0038] Preferably, the first connecting line and the second connecting line form a first angle of at least 90 degrees in the table position. Accordingly, the object located on the first connecting line is particularly easy to access in the table position. In the transport position, the first and second connecting lines are usually parallel, i.e., they are not at an angle to each other. If a moment is applied about the first pivot axis and the first connecting line is pivoted relative to the second connecting line, the device can be moved from the transport position to the table position. During this movement, the first angle between the connecting lines increases until it reaches a value of at least 90 degrees in the table position. Accordingly, the first, second, third, and fourth connecting lines can have a trapezoidal geometry in the side view.

[0039] It has proven advantageous to provide a stop that limits the pivoting movement of the support surface, ensuring that the first angle is a maximum of 135 degrees, particularly a maximum of 100 degrees, and preferably a maximum of 95 degrees. This stop clearly indicates that the table position has been reached. Furthermore, it prevents the first connecting line from pivoting too far around the first pivot axis. An excessively large first angle generally leads to instability of the device in the table position. A stop can be created by flattening the upper end of the main body, particularly the side panels, thus avoiding this problem. To enable interaction between the support surface and the stop, the support surface preferably extends along the first connecting line and beyond the first pivot axis, creating a projection.Preferably, this extension is integrally formed with the support surface and, in the transport position, extends beyond the first pivot axis and the upper end of the main body. If the support surface is now pivoted about the first pivot axis relative to the main body, and the main body has such a stop, the pivoting movement of the support surface is limited by the stop. Consequently, the stop also limits the first angle and thus determines the position of the support surface in the table position. Depending on the shape of the stop, in particular its angle to the main body, and the shape of the extension, the position of the support surface in the table position can vary. Regardless of the shape of the stop and extension, however, the first angle is limited to a maximum of 135 degrees.

[0040] Preferably, the first and third connecting lines are essentially parallel in the table position. This increases the stability of the device in this position. The second and fourth connecting lines, which are connected to the first connecting line via the first and second pivot axes respectively, and to the third connecting line via the third pivot axis or the coupling point, are prevented from rotating about the first and second pivot axes, respectively. Thus, the parallel arrangement of the first and third connecting lines further enhances the stability of the device in the table position.

[0041] Preferably, the first connecting line with the fourth connecting line in the table position forms a second angle of at least 90 degrees. This stabilizes the table position of the device particularly efficiently. Depending on the second angle, the support arranged along the fourth connecting line can be in contact with the surface at different angles. If particularly heavy objects are to be placed on the support surface of the device in the table position, the second angle between the support surface and the support can preferably be greater than 90 degrees to achieve additional stabilization of the device. Typically, the first and fourth connecting lines form a second angle of 90 degrees to 135 degrees, preferably 90 degrees to 100 degrees, and most preferably 90 degrees to 95 degrees.

[0042] It is advantageous if the first connecting line is shorter than the third connecting line, so that in the table position, the first, second, third, and fourth connecting lines form a trapezoid. This allows the device to support particularly heavy objects in the table position. The second and fourth connecting lines are positioned relative to the first connecting line such that the first angle and / or the second angle is greater than 90 degrees. The resulting trapezoidal shape provides exceptional stability to the device in the table position. Typically, this results in an asymmetrical trapezoid. Alternatively, the pivot axes and the coupling point could be arranged so that the connecting lines form a symmetrical trapezoid. In this case, both the first and second angles would be greater than 90 degrees.Furthermore, the trapezoidal arrangement of the connecting lines contributes to the stability of the device.

[0043] It is advantageously provided that the third pivot axis is translationally displaceable relative to the second pivot axis, particularly along the fourth connecting line. This allows the height of the device to be adjusted in the transport position. Since the second pivot axis and the coupling point are adjacent in the transport position, the first, second, third, and fourth connecting lines are parallel and at least partially coincide. If the third pivot axis is translationally displaced along the fourth connecting line, the third connecting line can be moved both towards and away from the first pivot axis. Because the third pivot axis is positioned at one end of the third connecting line, the other end of the third connecting line can extend beyond the first pivot axis.

[0044] It has proven advantageous to include at least one gas spring connecting the main body to the support surface. This spring applies a moment about the first pivot axis to the support surface to facilitate the transition from the transport position to the table position. This allows the device to be moved quickly and easily from the transport position to the table position. In the transport position, the first gas spring is pre-tensioned to assist the user in pivoting the support surface into the table position. Accordingly, the first gas spring exerts a force to facilitate the pivoting of the support surface about the first pivot axis. Furthermore, it can be advantageous to position the first gas spring between the support surface and the main body in such a way that its dead center is not exceeded in the transport position.Alternatively, the first gas spring can also be arranged in such a way that the dead center is exceeded in the transport position and the contact surface can be held in the transport position by the first gas spring.

[0045] Furthermore, at least two first gas springs can be arranged between the support surface and the main body to ensure a particularly smooth pivoting movement of the support surface. When using two first gas springs, they are preferably arranged in parallel and dimensioned to be particularly space-saving. This is made possible by the fact that the same force as a single gas spring can be achieved with two gas springs, each with half the force.

[0046] Preferably, the preload and force of the first gas spring are selected such that it can automatically perform the pivoting movement of the support surface. No effort from the user is required to pivot the support surface from the transport position to the table position. Accordingly, the first gas spring is positioned between the main body and the support surface such that its dead center is not exceeded in the transport position. Consequently, the support surface can be detachably fixed to the main body in the transport position by means of a fastener, in particular a hook and pin. Preferably, the support surface is automatically pivoted into the table position by the first gas spring when the fastener is opened. Alternatively, a lockable first gas spring can be used, which can be locked at least in the transport position. This allows the support surface to be held in the transport position by the lockable first gas spring.

[0047] It has proven advantageous for the first gas spring to lift the support surface, along with a mass of 1 kg to 50 kg (preferably 5 kg to 40 kg, and particularly preferably 15 kg to 30 kg), from a vertical to a horizontal position, in order to move the support surface from the transport position to the table position. This allows the device itself, with an object placed on the support surface, to be moved from the transport to the table position with particular ease. Accordingly, the force and positioning of the first gas spring are selected such that it can move the support surface, along with an object having a mass between 1 kg and 50 kg, from the vertical to the horizontal position. It is irrelevant whether the support surface is in a vertical position or between a horizontal and vertical position in the transport position.The only relevant factor is that the first gas spring can exert a force sufficient to move the support surface and the object from the transport position to the table position.

[0048] If the object is a toolbox, it typically weighs between 5 kg and 30 kg, meaning that manually switching it from transport to table position requires a particularly high amount of force. However, by placing a primary gas spring between the support surface and the main body, this switch can be made with little or no effort.

[0049] To facilitate the transition from the transport position to the table position, a second gas spring is preferably arranged between the support surface and the stand. This gas spring applies a moment about the second pivot axis to the stand, assisting in unfolding the stand into the table position. Accordingly, the stand can be pivoted about the second pivot axis via the second gas spring and moved into the table position with minimal effort. Preferably, one end of the second gas spring is attached to the underside of the support surface, particularly at the imaginary center line of the support surface, and the other end is attached to an imaginary center line of the stand. The support surface is preferably held in the substantially horizontal table position by the first gas spring, allowing the stand to pivot freely about the second pivot axis.Although this pivoting movement can be performed manually, the second gas spring is preferably arranged between the support and the bearing surface in such a way that this pivoting movement can be carried out automatically by the second gas spring. It can be advantageous if the dead center of the second gas spring is not exceeded in the transport position. Accordingly, the second gas spring is preferably pre-tensioned between these components when the bearing surface and support are essentially parallel. Furthermore, it has proven effective to ensure the parallel alignment of the bearing surface and support by means of a locking mechanism, in particular a hook and pin. When this locking mechanism is opened, the second gas spring generates a moment about the second pivot axis and moves the support, preferably automatically, into the table position.Alternatively, the second gas spring can be positioned between the support and the support surface in such a way that its dead center is exceeded in the transport position. In this position, the second gas spring can hold the support against the support surface not only in the transport position but also during transitions from the transport to the table position. When the support is in the table position, the second gas spring provides particularly stable support.

[0050] Furthermore, lockable gas springs can also be used as the first and / or second gas spring. Preferably, lockable gas springs can be locked along their entire travel, whereby a spring effect usually remains, albeit to a limited extent, even after the gas spring has been locked. For example, by using lockable gas springs, the support surface or the support can be locked in both the transport and table positions. Accordingly, in the transport position, the use of fasteners to fix the support surface or the support may be unnecessary.

[0051] Preferably, the roller unit has at least two rollers. This makes the device particularly versatile, especially in the transport position. The roller unit with at least two rollers is a particularly robust design, enabling the device to be moved safely even on uneven terrain. The rollers of the roller unit typically have a diameter between 50 mm and 300 mm, preferably between 70 mm and 280 mm, and most preferably between 100 mm and 200 mm, and are made of metal, plastic, or wood. At least one roller is provided with a centrally positioned axle and connected to the main body, allowing the roller to rotate. The roller can also have a rim with multiple spokes, through which a running surface connects to the axle. This running surface can be smooth, grooved, toothed, or profiled.Furthermore, the tread can be made of a different material than the roller itself, preferably plastic, and particularly preferably polyurethane. The second roller also typically has a central axle but is rotatably mounted on the roller unit. Alternatively, the rollers can also be designed as pneumatic tires or solid rubber tires.

[0052] It has proven advantageous for the rollers of the roller unit to be connected via at least one continuous element, in particular a belt. This makes the device particularly versatile. The continuous element facilitates transport of the device over edges and projections. For this purpose, the rollers of the roller unit are spaced apart from one another in such a way that the continuous element can be tensioned between them. To support the continuous element, additional rollers can be provided between the rollers of the roller unit, preferably with a smaller diameter than the rollers of the roller unit itself. These additional rollers support the continuous element in such a way that it can rest against the edges of several steps simultaneously during transport of the device up or down stairs.

[0053] Alternatively, the additional rollers can also be designed as sliding surfaces, especially made of Teflon, over which the endless element can be moved almost frictionlessly.

[0054] Accordingly, the continuous element significantly reduces the effort required to transport the device up and down stairs. The continuous element is usually made of plastic, particularly a mixture of different plastics.

[0055] A tensioning unit, in particular a gas spring and / or a tensioning roller, is advantageously provided to tension the continuous element. This significantly reduces the effort required to transport the device up and down stairs. The continuous element is tensioned between the two rollers of the roller unit, with the option of additional rollers for further support. As the continuous element ages and / or its material deteriorates, it often elongates. Compared to a new continuous element, this elongation results in poorer running characteristics of the roller unit and thus increased effort required to transport the device. To prevent this, the tensioning unit ensures consistent tension on the continuous element, thereby extending its service life.The tension can be influenced by a tensioning roller connected to the endless element. The tensioning roller is preferably spring-mounted, so that the tension of the endless element is defined by a spring force. Alternatively, the tension of the endless element can be kept constant by the spring mounting of at least one roller of the roller unit. A gas spring is preferably used to provide spring mounting for the roller and / or the tensioning roller.

[0056] It is advantageous if the roller unit is pivotally connected to the main body about a fourth pivot axis. This allows the device to be moved with particularly little effort, even on uneven terrain. The roller unit, which preferably comprises two spaced-apart rollers, can be adapted to the surface by applying a moment about the fourth pivot axis. In the transport position, the roller unit is in the same plane as or parallel to the main body. If the device is to be moved over one or more edges, especially stairs, a moment can be applied about the fourth pivot axis to deflect the roller unit out of the plane of the main body. Often, the fourth pivot axis coincides with the axis of one of the rollers of the roller unit.As a rule, the moment around the fourth pivot axis is applied by the gravitational force, so that the pivotable connection of the roller unit with the main body ensures particularly efficient ground contact of the roller unit at all times.

[0057] To limit the maximum deflection of the roller unit, a connection can be provided between the main body and the roller unit. This connection can take the form of a guide or a pivoting and / or sliding strut. Typically, the connection is attached to the main body at one end and has a guide slot in which a guide element, in particular a pin, of the roller unit is movably mounted. Furthermore, the pivoting roller unit allows the device to be moved both on stairs with conventional inclines up to 45 degrees and on those with particularly steep inclines exceeding 45 degrees.

[0058] It is advantageous for the main body to have a shovel at its base, with the device's center of gravity located above the shovel in the table position to prevent tipping. The shovel allows for particularly efficient stabilization of the device when changing from the transport to the table position. If an object, especially a toolbox, is arranged with an even weight distribution on the support surface, the device's center of gravity is located essentially centrally below the support surface in the table position. Without a shovel on the main body, the device will tip over. To prevent this tipping, a shovel is positioned on the main body such that it extends above an imaginary vertical line on which the device's center of gravity lies.The shovel is preferably positioned at a lower end of the main body and supports the device against the surface during the changeover from the transport to the table position. Furthermore, the shovel can be arranged between the side parts of the main body in such a way as to contribute to the stability of the main body. It is advantageous if the shovel is made of the same material as the main body, in particular wood, metal, or plastic, and the shovel can be made of one or more parts. Particularly preferred is a shovel made of multi-layered wood veneers, especially 3D veneers.

[0059] Preferably, the main body, contact surface, support, and / or connecting element are at least partially made of wood, metal, or plastic. This allows for influencing the weight, stability, and appearance of the device. Typically, the device components are made of wood because this material is easy to work and process. Accordingly, a wooden device can have a wide variety of appearances while maintaining consistently high stability. Furthermore, components subjected to high mechanical stress can be partially or entirely made of laminated veneer lumber (LVL), which essentially consists of numerous layers of veneer glued together. LVL is characterized by both exceptionally high stability and a wide range of shaping possibilities achievable through conventional forming processes.Wooden components can be partially coated with plastic to protect the surface and / or to achieve additional functional properties, such as slip resistance. This helps prevent damage to wooden components that typically occurs when they collide with objects in their environment, especially household furnishings.

[0060] Alternatively, components of the device can be made of metal, which allows for particularly high strength and excellent heat resistance. Steel or aluminum are typically used as materials, since these can be shaped and machined using conventional methods. Such components can be coated with paint or varnish to prevent or reduce surface corrosion of the metal.

[0061] Furthermore, components of the device can be made of plastic, in particular polyamide (PA) and polyetheretherketone (PEEK). These plastics can also be reinforced with glass fibers to achieve particularly high strength. The components can be manufactured using conventional molding processes such as injection molding or rotational molding, as well as by machining a plastic blank through milling or laser cutting, especially CNC milling. Similar to a device made of wood, a device made at least partially of plastic can also prevent or reduce damage to surrounding objects, especially furnishings in a home.

[0062] To achieve particularly high flexibility when used in the table position, the support surface can be designed to be translationally displaceable relative to the first pivot axis, preferably parallel to a plane in which the first pivot axis and / or the second pivot axis lie. This results in an extendable tabletop in the table position.

[0063] Preferably, the device has a support plate arranged under the support surface, which can be released by moving the support surface in the table position relative to the first pivot axis and second pivot axis in order to form an additional support.

[0064] For example, the lower support plate can be designed to connect the first and second pivot axes. A bearing for the translational movement of the support surface relative to the support plate can be provided on the support plate or on the main body, or connected to the support plate or the main body. The support plate and support surface then form superimposed tabletops that can be moved relative to each other to achieve a particularly large support surface when needed, without increasing the installation space of the device in its transport position.

[0065] The support surface is preferably translationally displaceable relative to the support plate, typically along a vector connecting the first and second pivot axes and perpendicular to either the first and / or second pivot axes. This creates a kind of extendable tabletop in the table position, allowing, for example, a toolbox positioned on the support surface to be moved relative to the lower support plate located beneath it, thus creating an additional work surface in front of the toolbox. This facilitates, in particular, the performance of smaller tasks on-site, similar to a workbench. The support surface is then indirectly connected to the first and second pivot axes via the lower support plate.

[0066] To prevent unwanted relative movement between the support surface and the lower support plate during transport, a mechanism can be provided by which the support surface can be detachably coupled or locked to the lower support plate. It is particularly preferred that the support surface can be detachably locked to the lower support plate by the support, the connecting element, and / or an element connected to the support or connecting element when the device is in the transport position. For example, it can be provided that a position which the support assumes relative to the lower support plate in the transport position necessarily results in a locking of the lower support plate and the support surface.

[0067] Of course, the device can also be designed in such a way that, instead of the support surface and any toolbox attached to it being moved relative to the first and second pivot axes or relative to the main body to achieve a larger support area in the table position, a support plate or similar component located, for example, beneath the support surface can be moved relative to the support surface, so that it can be pulled out from under the support surface or toolbox. In this case, the support plate can thus be indirectly connected to the first and second pivot axes and the main body via the support surface located above it.

[0068] Furthermore, it is understood that more than two extendable tabletops can be provided one above the other, which can optionally be extended in different directions to achieve a particularly large work surface. The device according to the invention is usually used as a set in conjunction with a suitable object, in particular a toolbox, wherein the object can be detachably connected to the support surface. This makes the object particularly easy to transport and use. Accordingly, the object can be easily connected to the device in both the transport and table positions. It has proven advantageous to connect the object to the support surface in such a way that the device can be tilted particularly easily in the transport position.This effect is achieved by only slightly altering the device's center of gravity in the transport position by connecting the object to the support surface. Furthermore, the object can remain connected to the support surface while the device is moved from the transport to the table position. Alternatively, the object can be easily removed from the support surface before the device is moved from the transport to the table position.

[0069] Advantageously, the object and the support surface are provided with corresponding receptacles, which are preferably form-fitting and interlocking. This allows the object to be connected to the support surface particularly quickly. The receptacles are preferably designed as corresponding rails arranged on the top of the support surface and the underside of the object. The rails are therefore preferably designed as opposing T-, L-, or U-groove rails and positioned so that they can interlock particularly easily. In addition, the support surface can be provided with recesses whose depth corresponds to a maximum of half the height of the rails. To reduce the gap between the object and the support surface when the rails interlock, it has proven effective to position the rails in the recesses of the support surface.To define the final position of the object on the support surface, the rails of the support surface and the object are preferably arranged in a tapered manner.

[0070] Alternatively, the rails can also run along and / or parallel to the central axis of the object or the support surface. It is advantageous if the grooved rail is closed at one end to define the object's final position.

[0071] Advantageously, a detachable connection between the object and the support surface can be established by a translational movement of the object relative to the support surface. This allows the object to be connected to the support surface particularly easily. Consequently, in the transport position of the device, the object can be placed against the support surface and, preferably via receptacles attached to the object and the support surface, connected to it by the translational movement along the support surface. Preferably, the support surface and the object are provided with tapered and corresponding rails that interlock during the translational movement of the object along the support surface. This allows the object to be detachably fixed to the support surface, and the tapered arrangement of the rails defines the object's final position.Typically, the object is connected to the device in the transport position, making it particularly easy to bring a toolbox, in its carrying position, to the support surface and connect it. Alternatively, the toolbox can also be placed on the edge of the support surface in the table position and slid into its final position. Furthermore, the object can remain connected to the support surface both when changing the device from the transport to the table position and when using the object in the table position.

[0072] Further features, advantages, and effects of the invention will become apparent from the following description of an exemplary embodiment. The drawings referred to therein show: Fig. 1 a perspective view of a first embodiment of the device in a transport position with an attached object; Fig. 2 a perspective view of the device made of Fig. 1 in a table position with an attached object; Fig. 3 a perspective view of the device from Fig. 1 in the table position; Fig. 4 a perspective view of the device from Fig. 1 in the transport position; Fig. 5 a top view of the device from Fig. 3 Fig. 6 a sectional view along line VI-VI; Fig. 7 a schematic representation of connecting lines, pivot axes and coupling point; Fig. 8 details in the area of ​​the coupling point of the device; Fig. 9 details in the area of ​​the roller unit of the device; Fig. 10 details in the area of ​​a first pivot axis of the device; Fig. 11 a perspective view of a further embodiment of the device in the transport position; Fig. 12 a perspective view of the device from Fig. 11 in the transport position; Figs. 13 and 14 show a further embodiment of a device according to the invention.

[0073] In the Fig. 1 Figure 1 shows a perspective view of a first embodiment of the device 1 in a transport position with an attached object 5. The object 5 is a toolbox weighing approximately 20 kg. The device 1 has a width of approximately 70 cm, a height of approximately 150 cm, and a depth of 50 cm, the height being adjustable via a connecting part 7. Not shown in the illustration is the fact that the toolbox has two rails 14 on its underside, which engage in two corresponding rails 14 of a support surface 4 to achieve a releasable fixation of the toolbox to the device 1. The support surface 4 is pivotally connected to a main body 2 of the device 1 via two first hinges 34, which are also not shown.The main body 2 essentially consists of two parallel side parts, which are connected to each other via an intermediate piece and a blade 11. The first two hinges 34 are located at the upper ends of the side parts, but are not visible in this illustration. Furthermore, the side parts have stops 36 at their upper ends for the support surface 4.

[0074] Furthermore, a roller unit 3 is arranged on each side of the main body 2, comprising two rollers 9 and a belt 10. This belt 10 connects the two rollers 9 and facilitates movement of the device 1 in the transport position. The roller 9 located closer to the upper end of the main body 2 is spring-mounted to ensure constant tension of the belt 10. A gas spring is concealed inside the roller unit 3 for this purpose.

[0075] Furthermore, in the transport position, a support 6 and the connecting part 7 are arranged behind the support surface 4. It is not apparent from this illustration that the support 6 is pivotally mounted on a lower end of the support surface 4 via a second pivot axis 25, and that the connecting part 7 is pivotally mounted on the support 6 via a third pivot axis 27. However, it can be seen from this illustration that the connecting part 7 has a rectangular cross-section and is provided with a handle 8 at one end.

[0076] The Fig. 2 shows a perspective view of device 1 from Fig. 1 In a table position with object 5 attached, the device 1 is approximately 70 cm wide, 120 cm high, and 90 cm deep. The toolbox is positioned such that hinges located on its underside are positioned near the second pivot axis 25 (not shown) and define a pivot axis for object 5 (see dashed line). A moment can be applied about this pivot axis, allowing the lid of the toolbox to pivot relative to the body of the toolbox (see dashed arrow). Furthermore, this arrangement of the toolbox on the support surface 4 allows for easy removal of contents or tools that are detachably fixed inside the toolbox, particularly those positioned in pockets, while simultaneously ensuring they remain easily secured inside the toolbox in the transport position.

[0077] To move the device 1 from the transport position to the table position, a moment is applied about the first pivot axis 24, which is formed by the first hinges 34 (not shown) between the main body 2 and the support surface 4, and the support surface 4 is pivoted relative to the main body 2. Two parallel first gas springs 12 are visible, which facilitate such a pivoting movement and can even perform it automatically if necessary.

[0078] To prevent the device 1 from tipping over, the shovel 11 is positioned below the device 1's center of gravity and is dimensioned so that it extends above this center of gravity. Accordingly, the shovel 11 can prevent the device 1 from tipping over when the support 6 is folded in, particularly when changing from transport to table position.

[0079] Furthermore, in the table position, the support 6 is essentially vertically oriented to support one end of the support surface 4 and to absorb a portion of the weight forces of the object 5 and the support surface 4. The connecting part 7, which is essentially parallel to the support surface 4, is also arranged on the support 6. It can be seen that the connecting part 7, in particular its handle 8, is connected to the main body 2 at the coupling point. Here, an element 33 of the main body 2 and the handle 8 of the connecting part 7 form a positive-locking connection, which stabilizes the support 6 in the table position. Specifically, this arrangement prevents the support 6 from pivoting relative to the support surface 4 in the table position by applying a moment about the second pivot axis 25, which is not shown in this illustration.Accordingly, the support 6 is locked in the table position and the device 1 is particularly stable in this state.

[0080] In Fig. 3 is a perspective view of device 1 from Fig. 1 The table-mounted version is shown. The rails 14 of the support surface 4 are visible, preferably designed as grooved rails with an L-shaped cross-section. Additionally, recesses can be provided in the support surface 4 in which these rails 14 are arranged, so that the rails 14 protrude less from the surface of the support surface 4. Furthermore, a first pivot axis 24 is shown, formed by two first hinges 34 (not shown), and via which the support surface 4 can pivot relative to the main body 2.

[0081] Furthermore, this illustration shows that additional rollers 13 are arranged between the two rollers 9 of the roller unit 3, between which the belt 10 is tensioned. These support the belt 10 along a running surface, allowing the device 1 to be moved effortlessly even over uneven terrain. This design of the roller unit 3 has proven particularly useful for easily transporting the device 1 up one or more steps of a staircase.

[0082] Furthermore, details of the support 6 can be seen more clearly in this view. Specifically, the support 6 has two uprights which are connected to each other via several connecting pieces, and is connected to the support surface 4 via a second hinge 35 (not shown), the second hinge 35 forming the second pivot axis 25. In addition, a guide 15 is positioned between the uprights of the support 6, in which one end of the connecting part 7 is arranged, this end forming a third pivot axis 27.

[0083] Fig. 4 shows a perspective view of device 1 from Fig. 1 in the transport position. In contrast to the previous illustrations, the roller unit 3 is pivoted about an axis of the roller 9 relative to the main body 2, which is why this axis can also be referred to as the fourth pivot axis 31. To limit the pivoting movement of the roller unit 3, a connection 16 is provided. This connection 16 is attached at one end to the main body 2 and has a guide slot in which a guide element of the roller unit 3, in particular a pin, is movably mounted. Accordingly, the roller unit 3 can be pivoted relative to the main body 2 to achieve better traction when transporting the device 1 on uneven surfaces. In particular, when transporting the device 1 up and down stairs, several contact points with the edges of the stair treads can be easily established with such a roller unit 3.This illustration shows the maximum deflection between roller unit 3 and main body 2, which is approximately 60 degrees.

[0084] In Fig. 5 is a top view of device 1 from Fig. 3 This illustration shows the general positioning and proportioning of the rails 14 on the support surface 4, and specifically their tapered arrangement towards the second pivot axis, or their downward tapered arrangement in the transport position. Furthermore, the relative positioning of the main body 2, the roller unit 3, and the support surface 4 is clearly visible. In addition, areas of the support 6 and the connecting part 7, particularly the handle 8, can also be seen in this illustration.

[0085] Fig. 6 shows a section along line VI-VI in Fig. 5 Here, the positions and dimensions of the first hinge 34, which pivotably connects the main body 2 and the support surface 4 and forms the first pivot axis 24 (not shown), and of the second hinge 35, which pivotally connects the support surface 4 and the support 6 and forms the second pivot axis 25 (not shown), become apparent for the first time. At the opposite end of the support surface 4, the pivoting movement is limited by the stop 36.

[0086] Furthermore, a portion of the guide 15 is visible, in which one end of the connecting part 7 is mounted so that it is both slidably and pivotably. Accordingly, the guide 15 consists of two parts with a U-shaped cross-section, between which the end of the connecting part 7 is accommodated. Consequently, the end of the connecting part 7 is equipped with two guide pins, each of which interacts with a part of the guide 15 to allow the connecting part 7 to be moved translationally along the support 6. The guide pins have a round cross-section, so that they are not only slidably but also rotatably mounted in the guide 15. Accordingly, the two guide pins at the end of the connecting part 7 form the third pivot axis 27 (not shown), which is also slidably along the support 6.Furthermore, it can be seen that the connecting pieces of the support 6 both connect the uprights to each other and serve to fasten the guide 15.

[0087] The connecting part 7 is arranged essentially parallel to the support surface 4 in the table position, and the handle 8 can be positively connected to the element 33 at its end. Specifically, the handle 8 has a recess 32 which is positively connected to the element 33 of the main body 2 at the coupling point K. This limits the pivoting movement of the support 6 about the second pivot axis 25 (not shown), which is made possible by the second hinge 35.

[0088] Furthermore, one of the first two gas springs 12 and the second gas spring 17 are shown. Both first gas springs 12 are connected to the main body 2 and the support surface 4 and exert a force that enables the automatic pivoting movement of the support surface 4 from the transport position to the table position. It is irrelevant whether an object 5 (not shown in this illustration) weighing up to 50 kg is connected to the support surface 4 or not. The second gas spring 17 is arranged along an imaginary center line between the support surface 4 and the support 6 and enables the support 6 to automatically pivot into the table position. This second gas spring 17 typically has a lower force than the first gas spring 12 and can therefore be smaller.

[0089] In this illustration, the axis of roller 9 is also visible, which, as the fourth pivot axis 31, enables a pivoting movement of the roller unit 3. This pivoting movement is limited by the connection 16, which is also connected to the main body 2 and is only partially visible.

[0090] The Fig. 7 Figure 1 shows a schematic representation of connecting lines 26, 28, 29, 30, pivot axes 24, 25, 27, and coupling point K. The first connecting line 26 runs along the support surface 4, the second connecting line 28 along the main body 2, the third connecting line 29 along the connecting part 7, and the fourth connecting line 30 along the support 6. The connecting lines 26, 28, 29, 30 are arranged in a trapezoidal shape, with the pivot axes 24, 25, 27, and the coupling point K forming the vertices of a trapezoid. Consequently, the first connecting line 26 and the second connecting line 28 form a first angle α equal to 90 degrees. The first connecting line 26 and the fourth connecting line 30 form a second angle β greater than 90 degrees. Furthermore, the third connecting line 29 and the first connecting line 26 are parallel. The result is a shape of an asymmetrical trapezoid.Alternatively, the pivot axes 24, 25, 27 and the coupling point K could also be arranged such that the connecting lines 26, 28, 29, 30 assume the form of a symmetrical trapezoid. In this case, both the first angle α and the second angle β would be greater than 90 degrees. In any case, however, the trapezoidal arrangement of the connecting lines 26, 28, 29, 30, which can be achieved in particular by limiting the pivoting movements of the support surface 4 and the support 6 via the stop 36 or the connecting part 7 and can be stabilized by the first gas spring 12 and the second gas spring 17, contributes to the stability of the device 1. The limitation of the pivoting movement of the fourth connecting line 30 about the second pivot axis 25 is achieved by the third connecting line 29 bracing the fourth connecting line 30 and the second connecting line 28 against each other.

[0091] In Fig. 8 Details of the coupling point K of the device 1 are shown. The connection point between element 33 of the main body 2 and the connecting part 7, the so-called coupling point K, is shown in detail. In this embodiment of the device 1, the connecting part 7 is plate-shaped and has an opening near one end, creating a shape in this area that can be used as a handle 8. Furthermore, in this embodiment, element 33 consists of a projection that is positively engaged in the recess 32 of the connecting part 7. This recess 32 is positioned near the handle 8 and therefore allows for particularly easy coupling of the connecting part 7 and the main body 2. In addition, two simple rollers 9 are provided as roller units 3 in this variant of the device 1. One end of the first gas spring 12 is also visible.

[0092] Fig. 9 Figure 1 shows details of the roller unit 3 of the device 1. The additional rollers 13 of the roller units 3 are visible; these are arranged between the rollers 9 to support the belt 10 against the surface. An opening for tensioning the belt 10 is also visible, in which the axle of the roller 9 is guided. The axle of the roller 9 can be moved along this opening by a gas spring to tension the belt 10. Alternatively, the roller 9 can be fixed in place, and the belt 10 can be guided at a different location over a tensioning roller, in particular a spring-loaded tensioning roller, to achieve constant tension of the belt 10. Furthermore, in this illustration of the device 1, the rail 14 is partially arranged in the recess of the support surface 4, and the positioning of the blade 11, the connecting part 7, the first gas spring 12, and the support 6 is at least partially visible.

[0093] In Fig. 10 Details are shown in the area of ​​a first pivot axis 24 of the device 1. A first pin 20 is visible for the first time, which, together with a first hook (not shown), forms a first locking mechanism 18. The first pin 20 is located directly on the side of the main body 2. The first locking mechanism 18 allows the support surface 4 to be releasably fixed to the main body 2 in the transport position. Furthermore, second hooks 23 are visible for the first time, which, together with second pins (not shown), each form a second locking mechanism 21. These second hooks 23 are located on the underside of the support surface 4 and, by forming the second locking mechanisms 21, allow the support 6 to be releasably fixed to the support surface 4 in the transport position. If, as in the present case, first gas springs 12 and a second gas spring 17 (not shown) are provided, the support surface 4 and the support 6 can be locked by the first locking mechanism 18 and the second gas spring 17, respectively.The second latch 21 is held in the transport position. When the latches 18, 21 are released, the device 1 automatically switches from the transport position to the table position. Furthermore, this illustration shows a preferred embodiment of the first hinge 34 as a flap hinge, wherein the axis between the two parts of the first hinge 34 forms the first pivot axis 24.

[0094] In Fig. 11 Figure 1 shows a perspective view of another embodiment of the device 1 in the transport position. Here, at least one connecting piece of the support 6 is designed with a large surface area and is equipped with a cord. This cord allows the support 6 to be easily detached from the support surface 4 and moved into the table position, particularly when no second gas spring 17 is provided. Furthermore, a first lever 19 is visible for the first time in this illustration. This lever enables easy actuation of the first hook, which is at least partially concealed in the underside of the support surface 4 and forms the first locking mechanism 18 with the first pin 20 on the main body 2. Similarly, a second lever 22 actuates the second hook 23 to open or close the second locking mechanism 21 between the support surface 4 and the support 6. In this embodiment as well, the roller units 3 are designed as simple rollers 9.Furthermore, the recess 32 of the connecting part 7 can be arranged analogously to that of the . Fig. 8 Connect at coupling point K in a form-fitting manner with element 33 of the main body 2.

[0095] Fig. 12 shows a perspective view of device 1 from Fig. 11 in the transport position. In this illustration, the arrangements of the second locking devices 21, the first gas springs 12, and the rollers 9 are clearly visible. Furthermore, the dimensions of the support surface 4, the support 6, the main body 2, and the connecting part 7 can be easily discerned.

[0096] Fig. 13 und 14 show a further embodiment of a device according to the invention 1. This embodiment differs from the one shown, for example, in Fig. 6 The embodiment shown is characterized in that the support surface 4 is not directly connected to the first pivot axis 24 and the second pivot axis 25, but indirectly via a lower support plate 37, with which the support surface 4 is connected in a translationally displaceable manner. Fig. 13 und 14 The figures show two possible relative positions of support surface 4 and lower support plate 37 as examples, where the support surface 4 has different positions relative to the main body 2. As can be seen, this results in an extendable table top of the device 1 in the table position, so that the lower support plate 37, which can then be used in front of the toolbox (not shown here), can be used, for example, as a workbench.

[0097] To prevent relative movement between the lower support plate 37 and the support surface 4 in the transport position, a locking mechanism can be provided for the support surface 4 and the lower support plate 37 in the transport position, for example by the support 6 or the connecting part 7, which prevents relative movement between the support surface 4 and the lower support plate 37 in the transport position. With a device 1 according to the invention, an object 5, in particular a toolbox, can be easily transported, and a storage surface for it can be created with minimal effort and without removing the object 5 from the device 1.

Claims

1. A device (1) for transporting an object (5), particularly a tool box, comprising a main body (2) with a roller unit (3), wherein a bearing surface (4) is connected to the main body (2) so as to be pivotable about a first pivoting axis (24) and the object (5) can be connected to said bearing surface (4), wherein a support (6) is connected to the bearing surface (4) so as to be pivotable about a second pivoting axis (25), wherein the device (1) can be moved from a transport position into a table position, and wherein a connecting part (7) is connected to the support (6) so as to be pivotable about a third pivoting axis (27), characterized in that the connecting part (7) can be separably coupled to the main body (2) by means of a coupling point (K) provided on the main body (2) in order to stabilize the device (1) in the table position.

2. The device (1) according to claim 1, characterized in that the first pivoting axis (24), the second pivoting axis (25) and the third pivoting axis (27) essentially are parallel.

3. The device (1) according to claim 1 or 2, characterized in that the bearing surface (4) preferably has converging rails (14), wherein the bearing surface (4) is constructed in such a way that corresponding and preferably converging rails of the object (5) can be inserted into those of the bearing surface (4) in order to separably fix the object (5) on the bearing surface (4), particularly in a form-fitting manner.

4. The device (1) according to one of claims 1 to 3, characterized in that the support (6) has a guide (15), in which the connecting part (7) is arranged at least regionally and displaceable along a longitudinal axis of the support (6) in a translatory manner.

5. The device (1) according to one of claims 1 to 3, characterized in that a first connecting line (26) between the first pivoting axis (24) and the second pivoting axis (25), a second connecting line (28) between the first pivoting axis (24) and the coupling point (K), a third connecting line (29) between the coupling point (K) and the third pivoting axis (27) and a fourth connecting line (30) between the third pivoting axis (27) and the second pivoting axis (25) essentially are arranged in a quadrangular shape in a side view of the table position, wherein the first connecting line (26) and the second connecting line (28) preferably include a first angle (α) of at least 90 degrees in the table position, and wherein a stop (36) preferably is provided in order to limit a pivoting motion of the bearing surface (4) such that the first angle (α) amounts to no more than 135 degrees, particularly no more than 100 degrees, preferably no more than 95 degrees.

6. The device (1) according to claim 5, characterized in that the first connecting line (26) is smaller than the third connecting line (29) such that the first connecting line (26), the second connecting line (28), the third connecting line (29) and the fourth connecting line (30) form a trapezoidal shape in the table position.

7. The device (1) according to one of claims 1 to 6, characterized in that at least one first pneumatic spring (12) is provided, wherein said first pneumatic spring connects the main body (2) to the bearing surface (4) and exerts a torque about the first pivoting axis (24) upon the bearing surface (4) in order to promote a change from the transport position into the table position.

8. The device (1) according to claim 7, characterized in that the first pneumatic spring (12) is designed for raising the bearing surface (4) including a mass of 1 kg to 50 kg, preferably 5 kg to 40 kg, particularly 15 kg to 30 kg, which is affixed to the bearing surface, from a vertical position into a horizontal position in order to move the bearing surface (4) from the transport position into the table position.

9. The device (1) according to one of claims 1 to 8, characterized in that a second pneumatic spring (17) is arranged between the bearing surface (4) and the support (6) and makes it possible to exert a torque about the second pivoting axis (25) upon the support (6) in order to promote a fold-out motion of the support (6) into the table position.

10. The device (1) according to one of claims 1 to 9, characterized in that the main body (2) has a blade (11) on its bottom side, wherein a center of gravity of the device (1) is located above the blade (11) in the table position in order to prevent tilting of the device (1) by means of the blade (11).

11. The device (1) according to one of claims 1 to 10, characterized in that the main body (2), the bearing surface (4), the support (6) and / or the connecting part (7) are at least regionally made of wood, metal or plastic.

12. The device (1) according to one of claims 1 to 11, characterized in that the bearing surface (4) can be displaced relative to the first pivoting axis (24) in a translatory manner, preferably parallel to a plane, in which the first pivoting axis (24) and / or the second pivoting axis (25) lie.

13. The device (1) according to claim 12, characterized in that a bearing plate (37) is provided and arranged underneath the bearing surface (4), wherein said bearing plate can be released in the table position by displacing the bearing surface (4) relative to the first pivoting axis (24) and the second pivoting axis (25) in order to form an additional bearing structure.

14. The device (1) according to claim 13, characterized in that a mechanism is provided, by means of which the bearing surface (4) can be separably coupled to or interlocked with the lower bearing plate (37) in order to block a displaceability as needed.

15. A set for transporting an object (5), particularly a tool box, comprising the object (5) and a device (1) according to one of claims 1 to 14, wherein the object (5) can be separably connected to the bearing surface (4), wherein the object (5) and the bearing surface (4) preferably are provided with corresponding receptacles that preferably can be connected to one another in a form-fitting manner, and wherein a separable connection (16) between the object (5) and the bearing surface (4) particularly can be produced by means of a translatory motion of the object (5) relative to the bearing surface (4).