DEVICE FOR TRANSPORTING AN OBJECT

Abstract

The invention relates to a device (1) for transporting an object (5), in particular a tool box, the device comprising a main body (2) having a roller unit (3), wherein: a bearing surface (4) is pivotally connected to the main body (2) about a first pivot axis (24), to which bearing surface (4) the object (5) is connectable; a support (6) is pivotally connected to the bearing surface (4) about a second pivot axis (25); and the device (1) can be moved from a transport position into a table position. The aim of the invention is to achieve a particularly high level of stability in the table position. This aim is achieved by a connection part (7) being pivotally connected to the support (6) about a third pivot axis (27), the connection part (7) being couplable to the main body (2) via a coupling point (K) provided on the main body (2), in order to stabilise the device (1) in the table position.

Description

[0001] Device for transporting an object

[0002] The invention relates to a device for transporting an object, in particular a tool case, comprising a main body with a rolling 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 brought from a transport position into a table position.

[0003] Transporting heavy objects, especially tools or tool cases, is often a strenuous task. To simplify the manual transport of such objects, they usually have handles or other carrying aids such as loops or straps. If transport is to be made even easier, sack trucks with scoops on which the objects can be placed are well known in the art. Such sack trucks usually have wheels, so that even heavy objects can be transported on level ground with moderate effort by tipping the sack truck. If such objects need to be easily transported in stairwells, so-called stair trucks or stair climbers are usually used. In principle, the structure of a stair truck is similar to that of a sack barrow, but stair trucks usually have multi-axle wheel spiders.Depending on their dimensions, these continue to rotate when passing stairs, thereby significantly reducing the effort required to transport the object.

[0004] Furthermore, devices can also be taken from the prior art which are structurally very similar to the sack 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 sack trucks, with a main body serving to hold the object. In contrast to conventional sack trucks, however, such devices usually have a support surface which is pivotally connected to the main body. By means of a base which 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 offer a place to put the object.

[0005] Document CN 105852407 A discloses such a folding table, in which metal feet are pivotably 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 attached to one of the feet in a tabletop position, thus creating an aesthetically pleasing appearance.

[0006] The known devices of the prior art therefore 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.

[0007] It is therefore an object of the invention 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.

[0008] This object is achieved according to the invention in that a connecting part is pivotally connected to the support about a third pivot axis, wherein 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.

[0009] 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.

[0010] The main body typically comprises two parallel side parts, with the first pivot axis located at an upper end of the main body. The side parts of the main body are preferably connected via intermediate pieces to increase the stability of the main body. This first pivot axis can be formed by one or more hinges and pivotally connects the support surface to the main body. Near a lower end of the main body, two roller units are preferably provided, via which the device can be moved particularly easily into the transport position.

[0011] To make it particularly easy to connect the object, in particular the tool case, 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 pivot axis and the second pivot axis are positioned at opposite ends of the support surface.

[0012] The support comprises at least one upright to support the support surface against a subsurface. Alternatively, the support can also comprise several uprights connected to each other via connecting pieces. At least one connecting piece can be provided with a locking part, in particular a cord. This locking part allows the support to be adjusted in position.

[0013] The connecting part is usually rod-shaped with a round or square, particularly square, cross-section. It has the third pivot axis at one end, via which the connecting part is connected to the support, and a region at the other end that can be releasably fixed to the coupling point of the main body. Alternatively, the connecting part 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. The support surface changes from the transport position, in which the support surface is oriented substantially parallel to the main body, preferably vertically, to the table position, in which the support surface is oriented substantially parallel to the base, preferably horizontally. This pivoting movement of the support surface can be carried out regardless of whether the object is fixed to the support surface or not. Preferably, a moment about the second pivot axis is only applied 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. If the support is pivoted about the second pivot axis relative to the support surface, it supports the support surface against the ground in the table position, thus increasing the stability of the device. Alternatively, the pivoting movements of the support surface and support can also occur simultaneously and / or seamlessly merge into one another.

[0015] In the table position, the support surface is supported on the ground along the first pivot axis by the main body and along the second pivot axis by the support, wherein the support surface is preferably in a horizontal position and the support is preferably in a vertical position.

[0016] Finally, a moment is applied around the third pivot axis in order to connect the connecting part, which is connected to the support via the third pivot axis, to the coupling point of the main body. The connecting part is pivoted relative to the support and brought into a substantially horizontal position. Accordingly, the connecting part braces the support and the main body against each other and thus acts similarly to the step rail of a yoga or rhodium table, which is commonly known as a "vergeltsgott". This prevents the application of moments around the first pivot axis and the second pivot axis, increases the stability of the device, and locks the support and the main body in the table position. In particular, the connecting part can also prevent a pivoting movement in the table position in which the support and main body move towards each other.

[0017] If an object, particularly a toolbox, is connected to the support surface in the tabletop position, it exerts a weight on the support surface, with the weight essentially resulting from the force of gravity and the weight of the object. Since the main body and support are usually braced against each other by the connecting part in the tabletop position, providing particularly high stability, even heavy objects can be connected to the support surface.

[0018] In the transport position, the device preferably 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 also allow the device to be moved particularly easily in narrow corridors or stairwells, as well as through conventional doorways. Furthermore, the device with such dimensions can also be transported in conventional to particularly small elevators.

[0019] Advantageously, the first pivot axis, the second pivot axis, and the third pivot axis are essentially parallel. This makes it particularly easy to move the device from a transport position to a tabletop position. Each pivot axis connects two components of the device and enables a relative pivoting movement of these components. 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 tabletop position in a single, fluid movement.

[0020] Preferably, the pivot axes are defined by hinges, in particular fittings, flap hinges, or rolled hinges. Furthermore, a pivot axis can also be defined by several hinges arranged axially spaced along the pivot axis, with two hinges generally being provided. While the hinges can be designed to 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.

[0021] It has proven useful for the support surface and the object to have corresponding, preferably tapered, rails, with those of the object being insertable into those of the support surface in order to releasably fix the object on the support surface, in particular in a form-fitting manner. 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 in order to ensure that the rails can be pushed into one another with as little play as possible. One rail is provided with a groove and the corresponding rail with a preferably complementary tongue, whereby the term tongue 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 tongues, as long as all the rails on the support surface are of the same type.The rails are usually made of metal, especially aluminum.

[0022] The rails provided with the groove expediently have a T-, U-, or L-shaped cross-section in order to limit movement of the object normal to the support surface. The rails are preferably tapered towards the support surface and arranged at equal distances from an imaginary center line of the support surface and are provided with grooves. The grooves in the rails are oriented towards the imaginary center line of the support surface. It has also proven useful 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. In addition, these rails are provided with springs which point away from the center line of the object and can be received in a form-fitting manner in the rails of the support surface.

[0023] The tapered arrangement limits any translational movement of the object along the imaginary center line of the support surface and thus defines an end position. The spring-fitted rails are received in the grooves of the corresponding rails in such a form-fitting manner that these can be moved translationally in only one direction in order to release the object from the support surface again. Preferably, the rails are oriented tapering along the force of gravity in the transport position so that the object, in particular the tool case, remains connected to the support surface without further fastening means and can only be released from it by applying force against the force of gravity. Accordingly, a tool case with a handle in a carrying position, with the handle pointing upwards in the carrying position, can be lowered along the rails of the support surface and connected to the support surface.The tool case has at least one hinge on its underside, which defines a pivot axis for opening a lid of the case by a pivoting movement. The hinge of the tool case is preferably positioned at the same end of the support surface as the second pivot axis. This makes it particularly easy to open the tool case in the table position. The contents of the tool case usually consist of several tools, which can be releasably fastened within the tool case by holding means, in particular rubber bands and / or pockets. Preferably, pockets arranged radially to the pivot axis of the hinge are provided, which have openings at ends remote from the pivot axis. This allows the contents of the tool case to remain fastened in the transport position in the same way as in the carrying position.

[0024] 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 along the imaginary center line of the support surface takes place.

[0025] Alternatively, the grooved rails can be closed at one end, particularly with U-, L-, or T-slot rails. This eliminates the need for a tapered arrangement of the rails and defines the final position of the object on the support surface.

[0026] It is advantageous if the support has a guide in which the connecting part is arranged at least in part and can be moved translationally along a longitudinal axis of the support. This makes it possible to achieve a particularly stable table position of the device. The guide has at least one groove for receiving the connecting part. The guide preferably 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, with the two parts of the guide being arranged parallel and spaced from one another. In the case of a two-part guide, it has proven useful for the grooves of the guide to be positioned facing one another. In addition, the connecting part can be arranged with one end in the guide of the support.To enable controlled translational movement of the connecting part along the longitudinal axis of the support, the connecting part has one or more guide pins at its end. The connecting part is preferably formed at one end with two oppositely oriented guide pins, each of which engages a groove in the guide. The guide pins are expediently designed with a round cross-section and are rotatable in the grooves of the guide. Accordingly, the guide pins in the grooves of the guide define the third pivot axis, about which the connecting part can be pivoted relative to the support.

[0027] In addition, the translationally movable arrangement of the connecting part along the longitudinal axis of the support allows the connecting part to be placed in a substantially horizontal position when coupled to the main body. This allows for particularly efficient locking of the support and / or the main body. Furthermore, this locking is based on the fact that the main body and the support are clamped against each other via the connecting part.

[0028] It is advantageous that a handle is provided on the support and / or the connecting part for easy handling of the device. This allows the device to be moved in the transport position with particularly little effort. As a rule, the connecting part is designed with a handle at one end, in particular a U- or T-shaped handle. Alternatively, the connecting part can also be flat, in particular plate-shaped, and have an opening near one end, so that a handle is created between the end and the opening of the connecting part. If the other end of the connecting part can be moved translationally in the guide along the longitudinal axis of the support, the connecting part represents 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 upper end of the main body is provided by the end of the connecting part in the transport position.

[0029] Alternatively, one end of the support may be designed to form the handle.

[0030] The end of the support is preferably U- or T-shaped, so that in the transport position it lies close to the upper end of the main body and can be easily grasped by a user of the device. Furthermore, the support can also be formed from interlocking tubes, so that the U-shaped end of the support is extendable and the height of the handle can be adjusted in the transport position.

[0031] Preferably, the support surface can be releasably fixed to the main body via a lock in order to hold the support surface in the transport position. This can prevent the support surface from being accidentally pivoted into the table position. Locking elements can be provided on both the main body and the support surface to form a positive connection. The locking elements are preferably hooks and pins, with the hook being arranged on or in the support surface and the pin on the main body. It has proven useful to provide a recess on the underside of the support surface in which the hook is rotatably arranged. In order to be able to rotate the hook, 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 firmly attached 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 positively engage the pin to achieve a releasable fixation of the support surface to the main body. Advantageously, several fasteners, in particular two oppositely arranged, are provided to ensure particularly reliable fixation of the support surface to the main body.

[0032] Alternatively, a hook fastener can be provided, in which hooks, eyes, or recesses are provided on the support surface and the main body. Tension or snap fasteners are particularly used here, allowing a particularly quick connection between the support surface and the main body. These two types of fasteners are particularly common in doors and suitcases.

[0033] Advantageously, the support can be releasably secured to the support surface via a lock in order to hold the support in the transport position. This can prevent the support from pivoting unintentionally in the transport position. For the sake of simplicity, the locks described above can be used for this purpose. In a preferred variant, the hook is also arranged on the underside of the support surface and connected to a handle via a shaft. If the underside of the support surface is viewed as the xy plane, the hooks for releasably securing the support surface to the main body and those for releasably securing the support to the support surface are preferably arranged at a distance from one another in both the x and y directions. This allows the locks to be operated individually and the change between transport and table position can take place in a controlled manner and according to a predetermined pattern.

[0034] It has proven useful for the connecting part to have at least one element, in particular a projection, a bolt and / or a recess, for the preferably form-fitting coupling to the main body. This stabilizes the device particularly efficiently in the table position. In the table position, the connecting part extends between the support and the main body. In order 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 part can be provided with an element, in particular at the end. This is preferably designed as a projection, bolt and / or recess and can be releasably fixed to the coupling point of the main body.Accordingly, the coupling point of the main body is designed accordingly and typically has an edge, a recess, and / or a bolt to positively accommodate the element of the connecting part. In a preferred variant, the element is arranged on the handle of the connecting part and is positively connected to the main body at the coupling point.

[0035] Advantageously, 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 square shape in the table position. This enables the table position to have particularly high stability. The connecting lines are usually at right angles to the respective pivot axes or the coupling point. In a side view of the connecting lines running normal to the pivot axes and the coupling point, the device has a square shape in the table position. This shape ensures high stability of the device in the table position.The first connecting line can run along the support surface, the second connecting line along the main body, the third connecting line along the connecting part, and the fourth connecting line along the support. While 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 are generally retained.

[0036] Preferably, the first connecting line forms a first angle of at least 90 degrees with the second connecting line in the table position. Accordingly, the object arranged on the first connecting line is particularly easy to access in the table position. In the transport position, the first connecting line and the second connecting line are usually parallel, i.e. they are not at an angle to one another. 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 into the table position. The first angle enclosed between the connecting lines increases until it assumes 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.

[0037] It has proven useful to provide a stop which limits the pivoting movement of the support surface so that the first angle is a maximum of 135 degrees, in particular a maximum of 100 degrees, preferably a maximum of 95 degrees. This stop clearly signals that the table position has been reached. It also prevents the first connecting line from being pivoted too far about the first pivot axis. If the first angle is too large, this generally leads to the device becoming instabilized in the table position. By flattening the upper end of the main body, in particular the side parts, a stop can be created which avoids this problem. In order to achieve an interaction between the support surface and the stop, the support surface preferably extends along the first connecting line and beyond the first pivot axis, thus creating an extension.This extension is preferably formed integrally with the support surface and, in the transport position, projects 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 an angle of the stop 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, the first angle is limited to a maximum of 135 degrees.

[0038] Preferably, the first connecting line and the third connecting line are substantially parallel in the tabletop position. Accordingly, the stability of the device in the tabletop position can be increased. The second and fourth connecting lines, which are connected to the first connecting line via the first pivot axis and the second pivot axis, respectively, and to the third connecting line via the third pivot axis and the coupling point, respectively, are prevented from rotating about the first and second pivot axes, respectively. Accordingly, the parallel arrangement of the first and third connecting lines increases the stability of the device in the tabletop position.

[0039] Preferably, the first connecting line forms a second angle of at least 90 degrees with the fourth connecting line in the table position. This stabilizes the table position of the device in a particularly efficient manner. 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 received 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 in order to achieve additional stabilization of the device. As a rule, the first and fourth connecting lines form a second angle of 90 degrees to 135 degrees, preferably 90 degrees to 100 degrees, particularly preferably 90 degrees to 95 degrees.It is expedient if the first connecting line is smaller than the third connecting line, so that in the table position the first connecting line, the second connecting line, the third connecting line and the fourth connecting line form a trapezoidal shape. This means that particularly heavy objects can be picked up when the device is in the table position. The second connecting line and the fourth connecting line are positioned on the first connecting line such that the first angle and / or the second angle is greater than 90 degrees. The resulting trapezoidal shape makes the device particularly stable in the table position. The shape is usually an asymmetrical trapezoid. Alternatively, the pivot axes and the coupling point could also be arranged so that the connecting lines take on the shape of a symmetrical trapezoid. In this case, both the first angle and the second angle would be greater than 90 degrees.In addition, the trapezoidal arrangement of the connecting lines contributes to the stability of the device.

[0040] It is advantageously provided that the third pivot axis is translationally displaceable relative to the second pivot axis, in particular along the fourth connecting line. This allows a height of the device to be adjusted in the transport position. Since the second pivot axis and the coupling point are adjacent to one another in the transport position, the first, second, third and fourth connecting lines are parallel and coincide at least partially. 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. Since the third pivot axis is positioned at one end of the third connecting line, another end of the third connecting line can extend beyond the first pivot axis.

[0041] It has proven useful to provide at least one first gas pressure spring which connects the main body to the support surface and applies a moment to the support surface about the first pivot axis in order to support a change 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 pressure spring is pretensioned in such a way that it can support the user of the device in pivoting the support surface into the table position. Accordingly, the first gas pressure spring applies an effective force to facilitate the pivoting movement of the support surface about the first pivot axis. In addition, it can be advantageous if the first gas pressure spring is arranged between the support surface and the main body in such a way that a dead center of the first gas pressure spring is not exceeded in the transport position.Alternatively, the first gas pressure spring can also be arranged in such a way that the dead center is exceeded in the transport position and the support surface can also be held in the transport position by the first gas pressure spring.

[0042] In addition, 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 save space. This is made possible by the fact that the same effective force of a single gas spring can be achieved by two gas springs, each with half the effective force.

[0043] Preferably, the preload and effective force of the first gas pressure spring are selected such that it can automatically perform the pivoting movement of the support surface. No effort is required from the user to pivot the support surface from the transport position into the table position. Accordingly, the first gas pressure spring is arranged 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 releasably fixed to the main body in the transport position via a closure, in particular a hook and pin. Preferably, when the closure is opened, the support surface is automatically pivoted into the table position by the first gas pressure spring. In principle, a lockable first gas pressure spring can also be used, which can be locked at least in the transport position. In this way, the support surface can be held in the transport position by the lockable first gas pressure spring.

[0044] It has proven useful for the first gas pressure spring to be designed to lift the support surface, including a mass attached thereto of 1 kg to 50 kg, preferably 5 kg to 40 kg, particularly preferably 15 kg to 30 kg, from a vertical position to a horizontal position in order to move the support surface from the transport position to the table position. This makes it particularly easy to move the device from the transport position to the table position, even with an object arranged on the support surface. Accordingly, the force and positioning of the first gas pressure spring are selected such that it can move the support surface, including the object arranged thereon, which has a mass of between 1 kg and 50 kg, from the vertical to the horizontal position. In this case, it is irrelevant whether the support surface is in a vertical position in the transport position or between a horizontal and vertical position.What is relevant is that the first gas pressure spring can generate a force with which the support surface including the object can be moved from the transport position to the table position.

[0045] If the object is a tool case, it typically weighs between 5 kg and 30 kg, so manually switching it from the transport position to the table position requires a particularly high level of force. However, by placing such a first gas spring between the support surface and the main body, this change can be achieved with little or no force.

[0046] To facilitate the change from the transport position to the table position, it can preferably be provided that a second gas pressure spring is arranged between the support surface and the support, by means of which a moment about the second pivot axis can be applied to the support in order to assist in folding the support out into the table position. Accordingly, the support can be pivoted about the second pivot axis via the second gas pressure spring and brought into the table position with particularly little effort. Preferably, one end of the second gas pressure spring is attached to the underside of the support surface, in particular to the imaginary center line of the support surface, and the other end to an imaginary center line of the support. The support surface is preferably held in the essentially horizontal table position by the first gas pressure spring in order to be able to pivot the support freely about the second pivot axis.Although this pivoting movement can be carried out manually, the second gas spring is preferably arranged between the support and the support surface in such a way that this pivoting movement can be carried out automatically by the second gas spring. In this case, it can be advantageous if a dead center of the second gas spring is not exceeded in the transport position. Accordingly, the second gas spring is preferably pre-tensioned and arranged between these components when the support surface and support are aligned essentially parallel. In addition, it has proven useful to ensure the parallel alignment of the support surface and support by means of a lock, in particular a hook and pin. If this lock is opened, the second gas spring applies 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 so that its dead center is exceeded in the transport position. The second gas spring can then hold the support to the support surface not only in the transport position, but also during a transition from the transport position to the table position. Once the support is positioned in the table position, the second gas spring can hold it particularly securely in the table position.

[0047] In addition, lockable gas springs can also be used as the first and / or second gas springs. Lockable gas springs can preferably be locked along their entire spring travel, whereby a spring effect usually remains despite the locking of the gas spring, albeit only to a limited extent. For example, the use of lockable gas springs can lock the support surface or support in the transport and table positions. Accordingly, the use of locks to secure the support surface or support in the transport position may be unnecessary.

[0048] It is preferably provided that the rolling unit has at least two rollers. This makes the device particularly versatile, particularly in the transport position. The rolling unit with at least two rollers is a particularly robust variant for enabling the device to be moved safely even on uneven terrain. As a rule, the rollers of the rolling unit have a diameter between 50 mm and 300 mm, preferably between 70 mm and 280 mm, particularly 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 is connected to the main body, whereby the roller can perform a rotational movement. In addition, the roller can have a rim with several struts, via which a running surface is connected to the axle. This running surface can be smooth, with grooves, with teeth, or with a profile.Furthermore, the running surface can be made of a different material than the roller itself, preferably plastic, particularly preferably polyurethane. The second roller usually also has a central axis, but is rotatably mounted on the roller unit. Alternatively, the rollers can also be designed as air-filled tires or solid rubber tires.

[0049] It has proven useful for the rollers of the rolling unit to be connected via at least one endless element, in particular a belt. This makes the device particularly versatile. The endless element makes it easier to transport the device over edges and projections. For this purpose, the rollers of the rolling unit are arranged at a distance from one another so that the endless element can be stretched between them. To support the endless element, further rollers can be provided between the rollers of the rolling unit, which rollers preferably have a smaller diameter than the rollers of the rolling unit. These additional rollers support the endless element in such a way that it can rest against the edges of several steps simultaneously during transport of the device up a staircase.

[0050] Alternatively, the additional rollers can also be designed as a sliding surface, in particular made of Teflon, over which the endless element can be moved almost frictionlessly.

[0051] Accordingly, the endless element significantly reduces the effort required when transporting the device up and down stairs. The endless element is usually made of plastic, particularly a blend of different plastics.

[0052] A tensioning unit, in particular a gas spring and / or a tensioning roller, is expediently provided to tension the endless element. Accordingly, the effort required when transporting the device up and down stairs is particularly low. The endless element is tensioned between the two rollers of the rolling unit, with additional rollers optionally being provided to support the endless element. With increasing service life and / or material aging of the endless element, elongation of the endless element often occurs. Compared to a new endless element, this elongation of the endless element leads to poorer running characteristics of the rolling unit and thus to increased effort required when transporting the device. To avoid this, the tensioning unit is provided, which ensures consistent tension of the endless element and thus extends the service life of the endless element.The tension can be controlled 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-mounted mounting of at least one roller of the roller unit. A gas spring is preferably used to spring-mount the roller and / or the tensioning roller.

[0053] It is advantageous if the rolling unit is connected to the main body so that it can pivot about a fourth pivot axis. This means that the device can be moved with particularly little effort even on uneven terrain. The rolling 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 rolling unit is in the same plane as the main body or parallel to it. If the device is to be moved over one or more edges, in particular a staircase, a moment can be applied about the fourth pivot axis to deflect the rolling unit out of the plane of the main body. The fourth pivot axis often coincides with the axis of a roller of the rolling unit.As a rule, the moment around the fourth pivot axis is applied by the force of gravity, so that the pivoting connection of the rolling unit to the main body allows for particularly efficient ground adhesion of the rolling unit at all times.

[0054] To limit maximum deflection of the rolling unit, a connection can be provided between the main body and the rolling unit. This connection can be in the form of a guide or a pivoting and / or sliding strut. Typically, the connection is connected to the main body at one end and has a guide slot in which a guide element, in particular a pin, of the rolling unit is movably mounted. Furthermore, the pivoting rolling unit allows the device to be moved over stairs with conventional inclines of up to 45 degrees as well as those with particularly large inclines of over 45 degrees.

[0055] It is advantageous if the main body has a scoop on the bottom, with the center of gravity of the device being located above the scoop in the table position to prevent the device from tipping over due to the scoop. The scoop allows the device to be stabilized particularly efficiently when changing from the transport position to the table position. If an object, in particular a tool case, is arranged on the support surface with even weight distribution, the center of gravity of the device in the table position is essentially centrally below the support surface. If no scoop is arranged on the main body, this will result in the device tipping over. To prevent the device from tipping over, a scoop is arranged on the main body in such a way that it projects above an imaginary vertical line on which the center of gravity of the device lies.The scoop is preferably positioned at a lower end of the main body and supports the device on the ground during transition from the transport position to the table position. Furthermore, the scoop can be arranged between the side parts of the main body in such a way that it contributes to the stability of the main body. It is expedient for the scoop to be made of the same material as the main body, in particular wood, metal, or plastic, whereby the scoop can be formed in one or more parts. Particularly preferably, the scoop is made of multi-layer wood veneers, in particular 3D veneers.

[0056] Preferably, the main body, support surface, support and / or connecting part are made at least partially from wood, metal or plastic. This can influence the weight, stability and appearance of the device. The components of the device are usually made of wood because this material is easy to work and process. Accordingly, a device made of wood can take on a wide variety of appearances while maintaining a consistently high level of stability. In addition, components subject to high mechanical stress can be made partially or entirely from so-called laminated veneer lumber, which essentially consists of a large number of veneer layers glued together. This laminated veneer lumber is characterized on the one hand by its particularly high stability and on the other hand by its particularly versatile shaping options, which can be achieved using conventional shaping processes.Wooden components can be partially coated with plastic to protect the surface of the component and / or to provide additional functional properties, such as a non-slip surface. A device made of wood can prevent damage that typically occurs when colliding with objects in the environment, especially furnishings in a home.

[0057] Alternatively, components of the device can be made of metal, which allows for particularly high strength and particularly good heat resistance. Steel or aluminum are typically used as materials, as these can be formed and machined using conventional methods. Such components can be coated or varnished to prevent or reduce surface corrosion of the metal.

[0058] In addition, components of the device can be made of plastic, particularly polyamide (PA) and polyetheretherketone (PEEK). The 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 using milling or laser cutting, particularly CNC milling. Similar to a wooden device, a device made at least partially of plastic can also prevent or reduce damage to objects in the environment, particularly furnishings in a home.

[0059] To achieve particularly high flexibility when used in the table position, the support surface can be provided with translational displacement 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.

[0060] It is preferably provided that the device has a support plate arranged below the support surface, which can be released by moving the support surface in the table position relative to the first pivot axis and the second pivot axis in order to form an additional support.

[0061] For example, the lower support plate can be designed to connect the first pivot axis and the second pivot axis. A bearing for the translational displacement 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 tabletops arranged one above the other, which can be displaced relative to each other to achieve a particularly large support when needed, without increasing the installation space of the device in the transport position.

[0062] The support surface is preferably translationally displaceable relative to the support plate, usually along a vector which connects the first pivot axis and the second pivot axis and which is normal to the first pivot axis and / or the second pivot axis. This results in a type of extendable table top in the table position, so that, for example, a tool case positioned on the support surface can be moved relative to the lower support plate arranged beneath the support surface, creating an additional work surface positioned in front of the tool case on the lower support plate. This makes it possible, in particular, to carry out smaller jobs on site, similar to a workbench. The support surface is then indirectly connected to the first pivot axis and second pivot axis via the lower support plate.

[0063] To prevent undesired 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 releasably coupled or locked to the lower support plate. Particularly preferably, the support surface can be releasably locked to the lower support plate by the support, the connecting part, and / or an element connected to the support or connecting part when the device is in the transport position. For example, it can be provided that a position assumed by the support in the transport position relative to the lower support plate necessarily causes the lower support plate and support surface to lock.

[0064] Of course, the device can also be designed such that not only the support surface, including any tool case arranged thereon, is displaced relative to the first pivot axis and second pivot axis or relative to the main body in order to achieve a larger support in the table position, but also a support plate or the like arranged, for example, below the support surface can be displaced relative to the support surface in order to be able to be pulled out from under the support surface or under the tool case, so to speak. In this case, the support plate can thus be indirectly connected to the first pivot axis and second pivot axis as well as to the main body via the support surface arranged above.

[0065] It is further understood that more than two extendable table tops can be provided one above the other, which can optionally be extended in different directions to achieve a particularly large work surface. Typically, the device according to the invention is used as a set in conjunction with a corresponding object, in particular a tool case, wherein the object can be detachably connected to the support surface. This makes it particularly easy to transport and use the object. Accordingly, the object can be easily connected to the device in both the transport position and the table position. It has proven useful 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 changing the center of gravity of the device 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 position to the tabletop position. Alternatively, the object can be easily removed from the support surface before moving the device from the transport position to the tabletop position.

[0066] It is advantageous that the object and the support surface are provided with corresponding receptacles which can preferably be connected to one another in a form-fitting manner. Accordingly, the object can be connected to the support surface particularly quickly. The receptacles are preferably designed as corresponding rails which are arranged on the upper side of the support surface and the underside of the object. The rails are therefore preferably designed as opposite T-, L- or U-groove rails and are positioned such 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. In order to reduce the distance between the object and the support surface when the rails interlock, it has proven useful 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 so that they converge.

[0067] Alternatively, the rails can also run along and / or parallel to the center axis of the object or the support surface. It is advantageous if the grooved rail is closed at one end to define the final position of the object.

[0068] A detachable connection between the object and the support surface can expediently 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, the object can be placed on the support surface in the transport position of the device 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 converging and corresponding rails which interlock during the translational movement of the object along the support surface. This releasably fixes the object to the support surface and the converging arrangement of the rails defines the final position of the object.Typically, the object is connected to the fixture in the transport position, making it particularly easy to move a tool case in the carrying position to the support surface and connect it to it. Alternatively, the tool case can be placed on the edge of the support surface in the tabletop position and pushed into its final position. Furthermore, the object can remain connected to the support surface both when changing the fixture from the transport to the tabletop position and when using the object in the tabletop position.

[0069] Further features, advantages, and effects of the invention will become apparent from the following description of an exemplary embodiment. Reference is made to the drawings, which show: Fig. 1 is a perspective view of a first exemplary embodiment of the device in a transport position with an attached object;

[0070] Fig. 2 is a perspective view of the device of Fig. 1 in a table position with an object attached;

[0071] Fig. 3 is a perspective view of the device of Fig. 1 in the table position;

[0072] Fig. 4 is a perspective view of the device of Fig. 1 in the transport position; Fig. 5 is a plan view of the device of Fig. 3;

[0073] Fig. 6 is a sectional view along the line VI-VI;

[0074] Fig. 7 a schematic representation of connecting lines, pivot axes and coupling point;

[0075] Fig. 8 Details in the area of ​​the coupling point of the device;

[0076] Fig. 9 Details in the area of ​​the rolling unit of the device;

[0077] Fig. 10 Details in the area of ​​a first pivot axis of the device;

[0078] Fig. 11 is a perspective view of another embodiment of the device in the transport position;

[0079] Fig. 12 is a perspective view of the device of Fig. 11 in the transport position; Figs. 13 and 14 show a further embodiment of a device according to the invention.

[0080] Fig. 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 tool case 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. It is not apparent from the illustration that the tool case is provided on an underside with two rails 14 which engage in two corresponding rails 14 of a support surface 4 in order to releasably fix the tool case 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 two first hinges 34 are arranged at the upper ends of the side parts, but are not visible in this illustration. In addition, the side parts have stops 36 for the support surface 4 at their upper ends. In addition, a rolling unit 3, which comprises two rollers 9 and a belt 10, is arranged on each side part of the main body 2. This belt 10 connects the two rollers 9 to each other and simplifies movement of the device 1 in the transport position. The roller 9 which is arranged closer to the upper end of the main body 2 is spring-mounted in order to ensure constant tension on the belt 10. For this purpose, a gas pressure spring is concealed inside the rolling unit 3.

[0081] Furthermore, in the transport position, a support 6 and the connecting part 7 are arranged behind the support surface 4. What is not apparent in this illustration is that the support 6 is pivotally mounted on a lower end of the support surface 4 via a second pivot axis 25, and 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 square cross-section and is provided with a handle 8 at one end.

[0082] Fig. 2 shows a perspective view of the device 1 from Fig. 1 in a table position with the object 5 attached. In the table position, the device 1 is approximately 70 cm wide, 120 cm high, and 90 cm deep. The tool case is arranged such that hinges arranged on its underside are positioned close to the second pivot axis 25 (not shown) and define a pivot axis of the object 5 (see dashed line). A moment can be applied around this pivot axis so that a lid of the tool case can be pivoted relative to the body of the tool case (see dashed arrow). In addition, contents or parts detachably fixed within the tool case, in particular positioned in pockets, can beBy arranging the tool case in this way on the support surface 4, the tool can be easily removed in the table position and can also remain easily fixed within the tool case in the transport position.

[0083] 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 first gas pressure springs 12 arranged in parallel can be seen, which facilitate such a pivoting movement and can even perform it automatically if necessary.

[0084] To prevent the device 1 from tipping over, the blade 11 is arranged below the center of gravity of the device 1 and is dimensioned such that it projects above the center of gravity. Accordingly, the blade 11 can prevent the device 1 from tipping over when the support 6 is folded in, particularly when changing from the transport position to the table position.

[0085] In addition, the support 6 is oriented essentially vertically in the table position in order to support one end of the support surface 4 and to absorb part 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. An element 33 of the main body 2 and the handle 8 of the connecting part 7 form a positive connection which stabilizes the support 6 in the table position. Specifically, this arrangement prevents the support 6 from being pivoted 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.

[0086] Fig. 3 shows a perspective view of the device 1 from Fig. 1 in the table position. Here, the rails 14 of the support surface 4 can be seen, which are preferably designed as grooved rails with an L-shaped cross-section. Additionally, recesses can also be provided in the support surface 4, in which these rails 14 are arranged, so that the rails 14 protrude to a lesser extent from a surface of the support surface 4. Also shown is a first pivot axis 24, which is formed by two first hinges 34 (not shown) and via which the support surface 4 can be pivoted relative to the main body 2.

[0087] Furthermore, it can be seen from this illustration that between the two

[0088] Rollers 9 of the roller unit 3, between which the belt 10 is stretched, are also arranged further rollers 13. These support the belt 10 along a running surface, so that the device 1 can be moved effortlessly even over uneven terrain. This type of construction of the roller unit 3 has proven particularly useful for easily transporting the device 1 over one or more steps of a staircase.

[0089] In addition, details of the support 6 can be seen in more detail in this view. Specifically, the support 6 has two uprights connected to one another via several connecting pieces, and is connected to the support surface 4 via a second hinge 35 (not shown), wherein the second hinge 35 forms the second pivot axis 25. Furthermore, a guide 15 is positioned between the uprights of the support 6, in which one end of the connecting part 7 is arranged, wherein this end forms a third pivot axis 27.

[0090] Fig. 4 shows a perspective view of the device 1 from Fig. 1 in the transport position. In contrast to the previous illustrations, the rolling 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. In order to limit a pivoting movement of the rolling unit 3, a connection 16 is provided. This connection 16 is fastened at one end to the main body 2 and has a guide slot in which a guide element of the rolling unit 3, in particular a pin, is movably mounted. Accordingly, the rolling unit 3 can be pivoted relative to the main body 2 in order to achieve better grip when transporting the device 1 on uneven surfaces. In particular when transporting the device 1 over stairs, several contact points with the edges of stair steps can be easily created with such a rolling unit 3.This illustration shows the maximum deflection between rolling unit 3 and main body 2, which is approximately 60 degrees.

[0091] Fig. 5 shows a top view of the device 1 from Fig. 3. This generally shows the positioning and proportioning of the rails 14 on the support surface 4, as well as their tapered arrangement in the direction of the second pivot axis, or the downwardly tapered arrangement in the transport position. Furthermore, the relative positioning of the main body 2, the rolling unit 3, and the support surface 4 is clearly visible. Furthermore, sections of the support 6 and the connecting part 7, in particular the handle 8, can also be seen in this illustration.

[0092] Fig. 6 shows a section along line VI-VI in Fig. 5. This shows for the first time the positioning and dimensions of the first hinge 34, which pivotally 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). At the opposite end of the support surface 4, the pivoting movement is limited by the stop 36.

[0093] In addition, a part of the guide 15 can be seen, in which one end of the connecting part 7 is mounted so that it can be both displaced and pivoted. Accordingly, the guide 15 consists of two parts with a U-shaped cross-section, between which the end of the connecting part 7 can be received. 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 in order to be able to move the connecting part 7 translationally along the support 6. The guide pins have a round cross-section, so that they are not only translationally displaceable in the guide 15, but also rotatably mounted. Accordingly, the two guide pins at the end of the connecting part 7 form the third pivot axis 27 (not shown), which is also translationally displaceable along the support 6.It can also be seen that the connecting pieces of the support 6 both connect the uprights to each other and serve to fasten the guide 15.

[0094] In the table position, the connecting part 7 is arranged essentially parallel to the support surface 4, and the handle 8 can be positively connected to the element 33 at its end. Specifically, the handle 8 has a recess 32 that 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 enabled by the second hinge 35.

[0095] Furthermore, one of the two first gas pressure springs 12 and the second gas pressure spring 17 are shown. Both first gas pressure springs 12 are connected to the main body 2 and the support surface 4 and exert an effective force that enables the automatic pivoting movement of the support surface 4 from the transport position into 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 pressure spring 17 is arranged along an imaginary center line of the support surface 4 and the support 6 and enables the support 6 to automatically pivot into the table position. This second gas pressure spring 17 generally has a lower effective force than the first gas pressure spring 12 and can therefore be smaller.

[0096] This illustration also shows the axis of roller 9, 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.

[0097] Fig. 7 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 essentially trapezoidally, with the pivot axes 24, 25, 27 and the coupling point K representing vertices of a trapezoid. Consequently, the first connecting line 26 and the second connecting line 28 enclose a first angle α, which is equal to 90 degrees. The first connecting line 26 and the fourth connecting line 30 enclose a second angle β, which is greater than 90 degrees. In addition, the third

[0098] Connecting line 29 and the first connecting line 26 are parallel. This results in the shape of an asymmetric 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 take on the shape 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 produced in particular by limiting the pivoting movements of the support surface 4 and support 6 via the stop 36 or the connecting part 7 and can be stabilized by the first gas pressure spring 12 and the second gas pressure 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 created by the third connecting line 29 bracing the fourth connecting line 30 and the second connecting line 28 against each other.

[0099] Fig. 8 shows details in the area of ​​the coupling point K of the device 1. The connection point between the 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 region, so that in this region a shape of the connecting part 7 is created that can be used as a handle 8. In addition, the element 33 in this embodiment consists of a projection which is positively received in the recess 32 of the connecting part 7. This recess 32 is positioned near the handle 8 and therefore enables a particularly simple coupling of the connecting part 7 and the main body 2. Furthermore, in this variant of the device 1, two simple rollers 9 are provided as rolling units 3. Furthermore, one end of the first gas pressure spring 12 is visible.

[0100] Fig. 9 shows details in the area of ​​the rolling unit 3 of the device 1. The additional rollers 13 of the rolling units 3 can be seen here, which are arranged between the rollers 9 in order to support the belt 10 against the ground. In addition, an opening for tensioning the belt 10 can be seen, in which opening the axis of the roller 9 is guided. The axis of the roller 9 can be moved along this opening by a gas pressure spring in order to tension the belt 10. Alternatively, the roller 9 can also be permanently installed and the belt 10 can be guided at another point via a tensioning roller, in particular a spring-mounted tensioning roller, in order to achieve a constant tension of the belt 10. Furthermore, in this representation 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 pressure spring 12 and the support 6 can be seen at least in some areas.

[0101] Fig. 10 shows details in the area of ​​a first pivot axis 24 of the device 1. Here, a first pin 20 can be seen for the first time, which together with a first hook (not shown) forms a first closure 18. A first pin 20 is arranged directly on the side part of the main body 2. The first closure 18 enables the support surface 4 to be releasably fixed to the main body 2 in the transport position. Furthermore, second hooks 23 can be seen for the first time, which each form a second closure 21 with second pins (not shown). These second hooks 23 are arranged on an underside of the support surface 4 and, by forming the second closures 21, enable the support 6 to be releasably fixed to the support surface 4 in the transport position. If, as in the present case, first gas pressure springs 12 and a second gas pressure spring 17 (not shown) are provided, the support surface 4 and the support 6 can be connected by the first closure 18 orThe second lock 21 is held in the transport position. If the locks 18, 21 are released, the device 1 automatically changes from the transport position to the table position. Furthermore, this illustration shows a preferred embodiment of the first hinge 34 as a flap hinge, with the axis between the two parts of the first hinge 34 forming the first pivot axis 24.

[0102] Fig. 11 shows a perspective view of a further 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 provided with a cord. This cord makes it particularly easy to release the support 6 from the support surface 4 and bring it into the table position, particularly when no second gas spring 17 is provided. Furthermore, a first lever 19 can be seen for the first time in this illustration. This enables easy actuation of the first hook, which is at least partially concealed in the underside of the support surface 4 and, together with the first pin 20 on the main body 2, forms the first closure 18. Analogously, a second lever 22 actuates the second hook 23 to open or close the second closure 21 between the support surface 4 and the support 6. In this embodiment, too, the rolling units 3 are designed as simple rollers 9.In addition, the recess 32 of the connecting part 7 can be positively connected to the element 33 of the main body 2 at the coupling point K, analogous to that of Fig. 8.

[0103] Fig. 12 shows a perspective view of the device 1 from Fig. 11 in the transport position. This illustration clearly shows the arrangement of the second closures 21, the first gas springs 12, and the rollers 9. Furthermore, the dimensions of the support surface 4, the support 6, the main body 2, and the connecting part 7 can be clearly seen.

[0104] 13 and 14 show a further embodiment of a device 1 according to the invention. This embodiment differs from the embodiment shown, for example, in Fig. 6 in that the support surface 4 is not connected directly to the first pivot axis 24 and the second pivot axis 25, but indirectly via a lower support plate 37, to which the support surface 4 is connected in a translationally displaceable manner. Fig. 13 and 14 show, by way of example, two possible relative positions of the support surface 4 and the lower support plate 37, wherein 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 then usable lower support plate 37 can be used in front of the tool case, which is not shown here, for example as a workbench.

[0105] In order to avoid a relative movement of the lower support plate 37 and the support surface 4 in the transport position, a locking of the support surface 4 and the lower support plate 37 in the transport position can be provided, for example by the support 6 or the connecting part 7, which prevents a relative movement between the support surface 4 and the lower support plate 37 in the transport position.

[0106] With a device 1 according to the invention, an object 5, in particular a tool case, can be easily transported and a storage area for the object 5 can be created with little effort and without removing the object 5 from the device 1.

Claims

33 Patent claims 1. Device (1) for transporting an object (5), in particular a toolbox, comprising a main body (2) with a roller unit (3), wherein a support surface (4) is pivotably connected to the main body (2) about a first pivot axis (24), to which support surface (4) the object (5) can be connected, wherein a support (6) is pivotably connected to the support surface (4) about a second pivot axis (25), wherein the device (1) can be moved from a transport position to a table position, characterized in that a connecting part (7) is pivotably connected to the support (6) about a third pivot axis (27), wherein the connecting part (7) can be coupled to the main body (2) via a coupling point (K) provided on the main body (2) in order to stabilize the device (1) in the table position.

2. Device (1) according to claim 1 , characterized in that the first pivot axis (24), the second pivot axis (25) and the third pivot axis (27) are substantially parallel.

3. Device (1) according to claim 1 or 2, characterized in that the support surface (4) and the object (5) have corresponding, preferably tapered, rails (14), wherein those of the object (5) can be inserted into those of the support surface (4) in order to detachably fix the object (5) on the support surface (4), in particular in a form-fitting manner.

4. 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 partially and is translationally displaceable along a longitudinal axis of the support (6).

5. Device (1) according to one of claims 1 to 4, characterized in that a handle (8) is provided on the support (6) and / or the connecting part (7) for easy handling of the device (1). 34 6. Device (1) according to one of claims 1 to 5, characterized in that the support surface (4) can be detachably fixed to the main body (2) via a closure in order to keep the support surface (4) in the transport position.

7. Device (1) according to one of claims 1 to 6, characterized in that the support (6) can be detachably fixed to the support surface (4) by means of a closure in order to hold the support (6) in the transport position.

8. Device (1) according to one of claims 1 to 7, characterized in that the connecting part (7) for coupling with the main body (2), preferably in a positive-locking manner, has at least one element (33), in particular a projection, a bolt and / or a recess (32).

9. Device (1) according to one of claims 1 to 7, characterized in that a first connecting line (26) between the first pivot axis (24) and the second pivot axis (25), a second connecting line (28) between the first pivot axis (24) and the coupling point (K), a third connecting line (29) between the coupling point (K) and the third pivot axis (27) and a fourth connecting line (30) between the third pivot axis (27) and the second pivot axis (25) are arranged in the table position essentially in a rectangular shape.

10. Device (1) according to claim 9, characterized in that the first connecting line (26) with the second connecting line (28) in the table position encloses a first angle (a) of at least 90 degrees.

11. Device (1) according to claim 10, characterized in that a stop (36) is provided by which a pivoting movement of the support surface (4) is limited, such that the first angle (a) is a maximum of 135 degrees, in particular a maximum of 100 degrees, preferably a maximum of 95 degrees.

12. Device (1) according to one of claims 9 to 11, characterized in that the first connecting line (26) and the third connecting line (29) are essentially parallel in the table position.

13. Device (1) according to one of claims 9 to 12, characterized in that the first connecting line (26) with the fourth connecting line (30) in the table position encloses a second angle (β) of at least 90 degrees.

14. Device (1) according to one of claims 9 to 13, characterized in that the first connecting line (26) is smaller than the third connecting line (29), so that in the table position a trapezoidal shape of the first connecting line (26), the second connecting line (28), the third connecting line (29) and the fourth connecting line (30) results.

15. Device (1) according to one of claims 9 to 14, characterized in that the third pivot axis (27) is translationally displaceable relative to the second pivot axis (25), in particular along the fourth connecting line (30).

16. Device (1) according to one of claims 1 to 15, characterized in that at least a first gas spring (12) is provided which connects the main body (2) with the support surface (4) and applies a moment about the first pivot axis (24) to the support surface (4) to assist in a change from the transport position to the table position.

17. Device (1) according to claim 16, characterized in that the first gas spring (12) for lifting the support surface (4) together with a mass of 1 kg to 50 kg attached thereto, preferably of 5 kg to 40 kg, particularly preferably of 15 kg to 30 kg, is designed from a vertical position to a horizontal position in order to bring the support surface (4) from the transport position to the table position.

18. Device (1) according to one of claims 1 to 17, characterized in that a second gas spring (17) is arranged between the support surface (4) and the support (6), by which a moment about the second pivot axis (25) can be applied to the support (6) to assist in unfolding the support (6) into the table position.

19. Device (1) according to one of claims 1 to 18, characterized in that the roller unit (3) has at least two rollers (9).

20. Device (1) according to claim 19, characterized in that the rollers (9) of the roller unit (3) are connected via at least one endless element, in particular a belt (10).

21. Device (1) according to claim 20, characterized in that a tensioning unit, in particular a gas spring and / or a tension roller, is provided for tensioning the endless element.

22. Device (1) according to one of claims 1 to 21, characterized in that the roller unit (3) is pivotably connected to the main body (2) about a fourth pivot axis (31).

23. Device (1) according to one of claims 1 to 22, characterized in that the main body (2) has a shovel (11) on its bottom side, wherein a center of gravity of the device (1) is located above the shovel (11) in the table position in order to prevent the device (1) from tipping over by means of the shovel (11).

24. Device (1) according to one of claims 1 to 23, characterized in that the main body (2), support surface (4), support (6) and / or connecting part (7) are formed at least partially from wood, metal or plastic.

25. Device (1) according to one of claims 1 to 24, characterized in that the support surface (4) is translationally displaceable relative to the first pivot axis (24), preferably parallel to a plane in which the first pivot axis (24) and / or the second pivot axis (25) lie.

26. Device (1) according to claim 25, characterized in that a support plate (37) is provided arranged under the support surface (4), which is moved by shifting the support surface (4) in the table position relative to the first The pivot axis (24) and the second pivot axis (25) can be released to form an additional support.

27. Device (1) according to claim 26, characterized in that a mechanism is provided by which the support surface (4) is connected to the lower 37 The support plate (37) can be detachably coupled or locked to block movement if required.

28. Set for transporting an object (5), in particular a tool case, comprising the object (5) and a device (1) according to one of claims 1 to 10. 27, wherein the object (5) is detachably connectable to the support surface (4).

29. Set according to claim 28, characterized in that the object (5) and the support surface (4) are provided with corresponding receptacles which are preferably form-fittingly connectable to each other.

30. Set according to claim 28 or 29, characterized in that a detachable connection (16) between the object (5) and the support surface (4) can be produced by a translational movement of the object (5) relative to the support surface (4).