Positioning device and positioning system for hanging three-dimensional objects

Abstract

The invention relates to a positioning device (1), a positioning system, and a method for positioning a three-dimensional object (17) suspended from a flexible suspension element (15), particularly on a vertical wall (11). The positioning device (1) has at least one attachment point (2) at which it can be connected to the three-dimensional object (17) and is configured to hold the flexible suspension element (15) at a suspension point (18) located above the center of gravity (S) of the three-dimensional object (17).

Description

[0001] The invention relates to a positioning device for positioning a three-dimensional object suspended on a flexible suspension element, in particular on a vertical wall, and to a positioning system comprising such a positioning device and a method for positioning a three-dimensional object, in particular on a vertical wall.

[0002] Three-dimensional objects, such as pictures, are usually hung on nails driven into the wall or on screws inserted into the wall using wall plugs. If the wall needs to remain undamaged, for example in galleries with rotating exhibitions, hanging systems like the one shown in US 4,973,021 A are typically used. These systems usually consist of a rail in the corner near the ceiling, to which a cable made of plastic or steel is securely attached. Often, the securing element has a horizontal degree of freedom along the length of the rail, allowing the cables to be moved along the wall. This is usually achieved using T-nuts or hooks. At the height of the picture to be hung, there is another hook that can be moved along the cable and fixed at the correct height with a clamp. Clamping screws or wedges in various designs are frequently used for this purpose.An embodiment with clamping wedges is shown, for example, in DE 195 20 009 A1. Since the hook must also be attached to the image in some way, there are further fastening elements, such as the eyelets shown, for example, in DE 91 13 038 U1. A functional combination of these elements is known in particular from DE 20 2005 011 418 U1: Here, the hook, clamp, and eyelet form a single unit.

[0003] Some cables in a hanging system have a loop at one end. This can be used to attach the cable to nails, screws, or hooks in a wall or ceiling area outside the primary field of vision. If tracks are used, the system can also be reversed: The hook with clamp is then attached to the track, while the loop is fastened to a nail, screw, or hook on the picture. For the sake of simplicity, the term "eyelet" will be used in the following to refer to any structure attached to the picture to which a conventional hanging system with its respective fastening device can be positively engaged.

[0004] In general, hanging systems are relatively easy to use and have been established for many years. However, an aesthetic problem arises: three-dimensional objects, especially paintings or framed photographs and prints, typically protrude from the wall at the top or along their upper edge when displayed using hanging systems. This phenomenon can be seen, for example, in JP 2 500 670 Y2 in Figure 6 This is visible. When an object such as a painting is attached directly to the wall using nails or screws, the problem does not occur, as these, unlike a cable system, can also conduct forces in the direction of viewing and thus prevent unwanted deflection.

[0005] Starting from this premise, the invention aims to provide improved positioning of a three-dimensional object. According to the invention, this is achieved by a positioning device as defined in claim 1, as well as by a positioning system comprising such a positioning device and a corresponding method for positioning a three-dimensional object, particularly on a vertical wall. Advantageous embodiments of the invention are the subject of the dependent claims.

[0006] To solve the problem, a positioning device is proposed for positioning a three-dimensional object suspended from a flexible suspension element, particularly on a vertical wall. The positioning device has at least one attachment point at which it can be connected to the three-dimensional object and is configured to hold the flexible suspension element at a suspension point located above the center of gravity of the three-dimensional object and lying substantially in a plane vertically passing through this center of gravity, with the attachment point being spaced apart from the plane E.

[0007] The positioning device is thus equipped with one or more attachment points which—provided the positioning device is attached to or arranged on the three-dimensional object—are not located between the suspension point and the center of gravity, and therefore not on plane E. The positioning device is a structure consisting of at least one attachment point and may have at least one adjustment element. For higher loads due to the weight of the object, the positioning device can be made of metal in the form of sheet metal, wire, or casting. Particularly for lower loads, the positioning device can also be made of plastic, preferably transparent plastic, to be less visually conspicuous.

[0008] A flexible hanging element is part of a standard hanging system. Transparent plastic cords or ropes are commonly used; steel cables are employed for heavier objects. Chains are used less frequently, and rods are used only very occasionally. In the context of the invention, objects are generally three-dimensional structures with their own weight and center of gravity, intended primarily for display on a wall. These may include paintings, framed photographs, or prints, which typically have features on their reverse side such as eyelets, hooks, brackets, steps, and the like, for hanging on a nail, screw, or screw hook on a vertical wall. "Walls" refers to building walls, both indoors and outdoors, as well as temporary partition walls, which are flexibly erected, for example, at exhibitions or trade fairs. Walls are essentially flat, vertical structures.

[0009] The term "suspension point" refers to the location where the flexible suspension element extends from the positioning device towards its upper attachment point on the wall or ceiling. The object can only hang in the desired position and orientation relative to the wall if the suspension point lies above the object's center of gravity in a vertical plane E passing through the object. Unlike, for example, a screw hook, the positioning element must have at least one attachment point for its connection to the object that is explicitly not located—even partially—on the aforementioned vertical plane passing through the center of gravity or in its immediate vicinity.This feature is advantageous for objects such as framed paintings and the like, as it eliminates the need to damage the frame at the top or sides in the visible area, as would be the case with screw hooks that would have to be attached to the frame at the intersection of the vertical plane E through the center of gravity. Instead, the attachment point can be located on the back of the object or, in the case of a framed picture, also on the front. Attachment points are structures such as through holes, grooves, surfaces, or edges that can be attached to the object using state-of-the-art elements such as screws, nails, rivets, adhesives, magnets, or other systems.The attachment point can also be designed to be form-fit, force-fit, and / or material-fit; in these cases, the positioning device is consequently attached to the object by being inserted, clamped, or, in particular, additionally glued. The at least one attachment point can also be designed to attach the positioning device, in particular by form-fit, to a structure formed with the object. Since the location of an object's center of gravity is not always easy to determine, the positioning element can also include an adjustment element that allows for adjustment of the suspension point's position.

[0010] By positioning the suspension point in the vertical plane E of the object, the positioning device according to the invention avoids, especially for objects such as paintings, an aesthetically disruptive tilting of the upper edge away from the wall when presented with a state-of-the-art suspension system such as in Fig. 11As demonstrated, a further aesthetic and economic advantage lies in the fact that the positioning device is designed so that its attachment point is not located in the object's vertical plane E. Since hanging systems are usually only used temporarily, for example, during an exhibition, the positioning device should be removed before the painting is finally hung on screws or nails on the wall. If the attachment points are, for instance, screw connections and are located on the surface of a wooden picture frame facing the wall, the screw holes will not be visible after the positioning element is removed.If, however, they were located in the immediate vicinity of the hanging points required for wall-parallel alignment, screw holes would be visible in the frame after the positioning device was removed. These holes would require extensive filling, sanding, and painting. The positioning element according to the invention therefore enables a highly aesthetic, damage-free, and thus easily and cost-effectively reversible presentation of an object, particularly a painting, using hanging systems.

[0011] In one design of the positioning device, the suspension point is essentially located on a vertical line through the object's center of gravity. If the object is to be suspended from only a flexible suspension element, it is insufficient for the positioning element to simply provide an arbitrary suspension point on a vertical plane through the object's center of gravity. In this case, the suspension point must lie on the vertical line g above the center of gravity. To ensure that the vertical alignment is more accurately determined when attaching the positioning element to the object, particularly an image, it is advantageous if the positioning element is equipped with, for example, a center mark that can be aligned with the image's center point (horizontally), which may have been measured and marked.If the mounting point consists of a flat structure with holes for screws, it is particularly advantageous to design these as horizontally extending elongated holes, as this makes it easier to optimize the horizontal position of the positioning element. Center markings can be, for example, grooves, bulges, center punch marks, notches, scorings, lettering, printing, and the like.

[0012] In one embodiment of the positioning device, when positioning a three-dimensional object using at least two positioning devices, the plane is arranged parallel to an orientation of the three-dimensional object or pivoted at an angle α to this orientation around the vertical through the object's center of gravity. In the case of a substantially cuboid image, the two suspension points can then both be placed above the top surface on the upper halves of the sides, or a combination of both on the top and sides. It is only necessary that one suspension point, viewed from the center of gravity, is placed in the direction of the positive y-coordinate and the second in the direction of the negative y-coordinate to prevent the object from rotating around the x-axis into an undesired position. Placing the two suspension points above the top surface of the image is particularly advantageous for images, as the positioning devices are then less visually obtrusive.A plane E parallel to the wall and passing through the center of gravity would likely be more visually pleasing, even though a plane pivoted by an angle α is technically possible. The angle α describes the angle between plane E and the wall extending along the vertical g in the direction of coordinates y and z. For the object to remain stable, the holding points must always be located above the center of gravity, which corresponds to a sub-region E' of plane E.

[0013] In one design of the positioning device, it is configured to push or pull the flexible suspension element against the suspension point. If the flexible suspension element is not directly attached to the positioning device but merely deflected by it, a component of the force acting from the suspension point on the adjustment element and the mounting point can be directed either in the x or -x direction. When the positioning device is mounted on the wall-facing side of the object, these forces will typically be compressive, especially for pictures, while for mounting on the visible side, they will be tensile. For aesthetic reasons, when mounting on the visible side, it is advantageous not to use a screw connection or similar for the mounting point, but rather a hook-shaped structure made of wire, sheet metal, or comparable materials that is positively engaged with the visible side.This is particularly suitable for framed pictures, as there is usually a gap or recess between the picture and the frame where a hook can grip. If the frame is made of metal, plastic, or very delicate frame profiles, this option is generally more economical, since attaching the mounting point to the back of the frame can only be achieved with considerable technical effort, especially if the back of the picture is also unsuitable for mounting with screws or similar fasteners. If the positioning device is attached to the side of a painting facing the wall, a picture frame, such as a shadow gap frame made of wood or the stretcher bars of a canvas, into which wood screws can be screwed, is generally suitable. Solid painting surfaces such as wood or fiberboard are also suitable for this type of screw connection.

[0014] In one embodiment of the positioning device, the positioning device can be arranged at least at one attachment point on the side of the object facing the wall or on the side facing away from the wall. In some embodiments, depending on the shape of the three-dimensional object, at least one attachment point can also be arranged laterally or at least partially laterally on the three-dimensional object. Accordingly, and also depending on the shape of the object, the attachment point of the positioning device can be more or less visible, or not visible, to the observer of the three-dimensional object.

[0015] One embodiment of the positioning device features a stepped or continuously adjustable element for holding the suspension element in position at the suspension point. Since the center of gravity of objects varies, and even paintings with identical dimensions can exhibit different center of gravity due to factors such as the amount of paint and material applied, it is advantageous for the positioning device to include an adjustment element that allows the position of the suspension point to be adjusted primarily along the x-coordinate. A particularly simple embodiment to manufacture is a stepped design in the form of grooves that can securely hold the suspension element, especially a flexible rope or cord. The user can then position the suspension element in different grooves until the desired orientation of the object in space is achieved.It is particularly advantageous if the grooves are inclined slightly away from the forces acting on the suspension element, as this allows for a more comprehensive positive fit with the suspension element. Since a stepped design, in the worst case, necessitates a compromise between two suboptimal positions, continuously adjustable adjustment elements are also conceivable. These can be screws and nuts placed in elongated holes or grooves; T-nuts can also be used instead of nuts. The adjustment element can be rod-shaped with a cross-section that is primarily rectangular, but also round, oval, or polygonal. A clamp is clamped around this rod, which can be moved essentially along the x-coordinate and provides a positive fit with the suspension element. For low loads, clamps can also be elastic, for example, made of an elastomer, in the simplest case as an O-ring that is slipped onto the adjustment element.For wire positioning devices subjected to tensile loads, stepless adjustment elements such as screw sleeves are suitable. These sleeves, similar to a turnbuckle according to DIN 1480, are equipped with two opposing internal threads. The adjustment element must therefore be multi-part and consist of at least two halves connected by the aforementioned screw sleeve. Instead of a positive-locking connection via threads, friction-locking connections are also possible for lower loads.

[0016] One embodiment of the positioning device includes a receiving device for receiving the flexible suspension element, particularly in the area of ​​the at least one attachment point and especially at a distance from plane E. Such a receiving device can be configured to directly receive and attach the flexible suspension element, and / or to receive a suspension element arranged on the flexible receiving element, such as a hook or eyelet, in order to attach the suspension element to the positioning device. In this way, a further device arranged on the three-dimensional object for suspending the object from the suspension element can be omitted.

[0017] In one embodiment of this positioning device, the receiving device has a height adjustment mechanism by which the vertical length of the flexible suspension element it receives can be adjusted. For example, such a height adjustment can be achieved by means of a reversible clamping mechanism, allowing the object to be aligned directly at any positioning device in the direction of the z-coordinate in space. Such a height adjustment mechanism can slidably and reversibly clamp the flexible suspension element to the positioning device. Such clamping mechanisms, which can be integrated into a positioning device, are achieved, for example, by at least one screw that clamps the suspension element, guided by the height adjustment mechanism, in a force-fit manner.As an alternative to screws, spring-loaded clamping wedges are conceivable. These are oriented so that they can be pushed in the direction of the z-coordinate, but in the -z direction, their wedge shape automatically clamps the suspension element. An initial clamping force, which enables this self-reinforcing action, is usually achieved by an elastic spring. To release the clamp, the user moves the wedge away from the suspension element against the spring force and can then adjust the mounting direction with almost no effort.

[0018] In a second aspect, a positioning system for positioning a three-dimensional object, particularly on a vertical wall, is proposed. The positioning system comprises at least one positioning device of the type described above and a suspension system with at least one flexible suspension element and a fastening device attached to it, which can be firmly connected to the three-dimensional object for suspension. Fastening devices are typically hooks that are attached to the suspension element by force or form-fit and can be engaged, for example, with an eyelet attached to the object or with a receiving device of the positioning system. An eyelet can be attached to the object with a sheet metal tab and screws and can pivot relative to this sheet metal tab.Other embodiments include, for example, rigid, one-piece eyelets that are riveted to the object, particularly to the back panels of prefabricated frames. Also common are tabs, usually made of sheet metal, which are attached to the wall-facing side of the object with screws. A very simple and space-saving solution can also be screws and nails that are essentially lying in the xy-plane and protruding from the object. A hook-shaped fastening device can then be positively engaged with these protruding structures, and the screw or nail head provides additional security against slippage. The fastening device can also be a simple loop of a flexible suspension element in the form of a rope or wire, or a link in a chain.This embodiment of the mounting device is particularly space-saving and promotes a flat surface for the object against the vertical wall. The eyelet or structure with a comparable function—namely, connecting a mounting device on the suspension element to the object—can also be part of the positioning device. Preferably, this structure is located near the mounting point. Such a functional integration can simplify the overall system, as eyelets or similar structures then do not need to be separately procured, positioned, and attached to the object. However, this also results in a slight reduction in flexibility regarding the arrangement of the elements on the object. Therefore, the aforementioned functional integration is particularly suitable for more or less standardized objects, such as (system) picture frames.

[0019] One embodiment of the positioning system features a height adjustment mechanism on the suspension element, allowing the object to be aligned in space along the z-coordinate. Fastening devices in the form of hooks can incorporate a height adjustment that reversibly clamps the hook, which is movable along a flexible suspension element, to the same. Reversible clamps integrated into fastening devices include, for example, screws that forcefully clamp the suspension element guided by the fastening device. Alternatively to screws, spring-loaded clamping wedges are conceivable, oriented so that they can be pushed in the z-coordinate direction, but in the -z direction, their wedge shape automatically clamps the suspension element. An initial clamping force, enabling self-reinforcement, is typically achieved by an elastic spring.To release the clamp, the user moves the wedge away from the suspension element against the spring force and can then adjust the mounting direction almost effortlessly. A reversible clamp can also be attached directly to the positioning device. This eliminates the need for the mounting device and eyelet in the overall system, as their functions are then taken over by the positioning device. This further simplifies the overall system, especially for more or less standardized objects such as (system) picture frames.

[0020] A third aspect proposes a method for positioning a three-dimensional object, particularly on a vertical wall, using a positioning system of the type described above. The method comprises the following steps: a) Arranging at least one positioning device at at least one attachment point on the three-dimensional object such that a suspension element can be held on it at a suspension point; b) Arranging the three-dimensional object on the attachment device of at least one suspension element; and c) Holding the suspension element on the positioning device at the suspension point.

[0021] In step a), the positioning device is first attached to the mounting points, for example, using screws, in an inconspicuous area of ​​the object. In the case of a painting, this would be, for example, the back of the painting. The position on the object must be such that the adjustment element of the positioning device intersects the plane E of the object above its center of gravity. Then, in step b), the object is hung from the mounting device of the suspension system, for example, a hook, using an eyelet attached to the object. As a further step for positioning the object, the suspension element, for example, a flexible rope, is guided to the adjustment element and, in the example of a stepped surface, hooked onto different steps until the desired position parallel to the wall is found, as described in step c). During this adjustment process, the object essentially rotates around the y-axis in space.

[0022] In one execution of the method for positioning a three-dimensional object, when arranging the three-dimensional object on the fastening device in step b), the suspension element is guided to the suspension point on the positioning device.

[0023] In the proposed method, the three-dimensional object can be arranged on the mounting device of the suspension element, as is known from the prior art, or, with a suitably appropriate design, the mounting device can also be attached directly to the adjustment area of ​​the positioning device. When the object is arranged on the mounting device of the suspension element, the suspension element is guided to the suspension point on the positioning device and held there. This eliminates the need to attach an eyelet or functionally equivalent structures to the object, which would otherwise be necessary. However, the correct position of the suspension point on the adjustment element of the positioning device must still be set to achieve the desired orientation of the object around the y-axis in space.

[0024] In one execution of the method, in a further step d) the vertical height of the suspension point is set by means of the height adjustment arranged on the suspension element or on the positioning device.

[0025] Whether using a single positioning device or two, the object's vertical position in space must be adjusted. To do this, the clamp securing the height adjustment mechanism to the suspension element or positioning device is loosened, and the height adjustment mechanism is moved along the suspension element until the desired position is reached. If two positioning devices, and consequently two suspension elements with their respective height adjustments, are used, they must be adjusted so that, in addition to the purely vertical position, the desired orientation relative to the xy-plane in space is also achieved. This is accomplished by moving the respective height adjustments unequally along the suspension elements, thus rotating the object around the x-axis in addition to the vertical movement.

[0026] Further features, advantages, and applications of the invention will become apparent from the following description in conjunction with the figures. These show Fig. 1 a perspective view of an exemplary embodiment of a positioning device according to the invention; Fig. 2 a perspective view of another exemplary embodiment of a positioning device according to the invention; Fig. 3 a perspective view of another exemplary embodiment of a positioning device according to the invention; Fig. 4 a perspective view of another exemplary embodiment of a positioning device according to the invention; Fig. 5 a perspective view of another exemplary embodiment of a positioning device according to the invention; Fig. 6 a perspective view of another exemplary embodiment of a positioning device according to the invention; Fig. 7 a perspective view of another exemplary embodiment of a positioning device according to the invention.Fig. 8 a perspective view of another exemplary embodiment of a positioning device according to the invention; Fig. 9 an overall view of an arrangement of the overall system with an exemplary embodiment of a positioning system according to the invention; Fig. 10 another overall view of an arrangement of the overall system with an exemplary embodiment of a positioning system according to the invention; Fig. 11 an overall view of an arrangement of the overall system without a positioning system according to the invention (prior art); Fig. 12 a representation of the coordinate system used for the description as well as essential geometries and properties; Fig. 13 a perspective view of another exemplary embodiment of a positioning device according to the invention; and Fig. 14 a perspective view of another exemplary embodiment of a positioning device according to the invention. Detailed description of the figures:

[0027] Fig. 1 Figure 1 shows a positioning device 1 made of sheet metal. It is attached to the mounting points 2 on the side of the object 17, e.g., a picture, which is not usually visible and / or faces the wall 11; in the case shown, for example, by two countersunk screws that are screwed into the picture through the two holes shown. The adjusting element 3 has steps 4 to guide and hold the suspension element 15, e.g., a rope, in a specific position, the suspension point 18. Fig. 1Step 4 is shown as twelve grooves leading slightly away from the wall 11; however, the number is arbitrary. Step 4 is ideally located on both sides of the adjustment element 3 to guide and hold the suspension element 15 on both sides. This is particularly advantageous when suspended with two suspension elements 15 on two positioning devices 1 in the area of ​​the two vertical boundaries of the object 17, since then only one version needs to be manufactured, and not, for example, one positioning device for mounting on the left side of the object and a mirror-symmetrical one for mounting on the right side.

[0028] Fig. 2 shows a variant of the in Fig. 1Positioning device 1 shown. If the positioning device 1 is to be attached centrally to an object 17, e.g., the frame of a picture, in order to use only one rope for suspension, the attachment points 2 are advantageously arranged in the form shown. The adjustment element 3 is similar to that shown in Fig. 1 The positioning device 1 is formed, but in this case, the presence of the step 4 on only one side is sufficient. To facilitate the alignment of the positioning device 1, a center mark 5 is attached to the object 17. This mark must lie on the vertical plane yz through the center of gravity, as must the rope position in the selected groove 4, which represents the suspension point 18. The attachment points 2 can also be designed as horizontally oriented elongated holes to allow for easy horizontal positioning of the positioning device 1 along the y-coordinate.

[0029] Fig. 3Figure 1 shows a positioning device 1 with attachment points 2, a vertically oriented adjustment device 3, on which a suspension element 15, in particular a rope with a rope loop or a fastening device 14, e.g. a hook at the suspension point 18, can be directly attached to one of the steps 4. In principle, such a positioning device also functions without steps 4 purely through friction between the adjustment element 3 and the fastening device 14 or the suspension element 15.

[0030] Fig. 4 Figure 1 shows a positioning device 1 with mounting points 2 and a slotted adjustment device 3. A T-nut 6 is located in this slot and, together with a screw 7, can be clamped at any desired position on the adjustment device 3. The suspension element 15 is preferably conventionally attached to the object 17 (in particular by means of a hook on its rear side, cf. Figure 1). Fig. 11In this case, the element is threaded into the slot in the viewing direction (-x) and then comes to rest directly against the T-nut 6. This position thus defines the suspension point 18, on which the flexible suspension element (15) is held.

[0031] Fig. 5 Figure 1 shows a positioning device 1 with mounting points 2, a pivoting adjustment device 3 which can be continuously fixed by means of the screw 7 and a nut (concealed in the image by the adjustment device 3). The flexible suspension element 15, in the form of a cable, is guided through the cable guide 8 and held there at the suspension point 18. The plates on the screw 7 can also have detents to allow for discrete adjustments of the adjustment device 3. The pivot axis can, in principle, be aligned along either the y-coordinate or the z-coordinate to enable adjustment.

[0032] While the in the Figures 1 to 5The positioning devices 1 shown are suitable for pressing the flexible suspension element 15 to the suspension point, as shown by the Figures 6 to 8 a positioning device 1 which can pull the flexible suspension element 15 to the suspension point.

[0033] Fig. 6 Figure 1 shows a one-piece positioning device 1 made of wire, which, from the viewing direction (-x), can be positively attached to the object 17, e.g., under the edge of a picture frame, via the attachment point 2 in the form of a hook. The adjustment device 3 is simply a wire of defined length that terminates at the cable guide 9. The cable guide 9 engages the suspension element 15 coming from the object 17, in this case a cable, above the object 17 and pulls it into the desired position at the suspension point 18.

[0034] Fig. 7 shows a three-part variant of the positioning device 1 from Fig. 6, which has a continuously adjustable adjusting device 3 in the form of a screw sleeve 10 with two opposing internal threads. The first half of the adjusting device 3, which connects to the attachment point 2, has an external thread that matches the screw sleeve 10, as does the second half of the adjusting element 3, which connects to the cable guide 9. By rotating the screw sleeve 10, the length of the positioning device 1 can be continuously varied in order to guide the flexible suspension element 15 to the suspension point 18 and hold it there.

[0035] Fig. 8 Figure 1 shows a one-piece positioning device 1 made of sheet metal. Similar to the one shown in Figure 2. Fig. 6 and 7From the viewing direction (-x), it can be positively attached to the object 17, e.g., under the edge of a picture frame, using the attachment point 2 in the form of a hook. The adjustment element 3 has steps 4 in the form of grooves inclined against the viewing direction (x), through which the suspension element 15, e.g., a rope, can be guided and thus pulled into the desired position at the holding point 18. Five steps 4 are shown, but the number is arbitrary in principle.

[0036] Fig. 9Figure 1 shows the complete system with an exemplary positioning system according to the invention in a side view. The object 17, e.g., a picture, hangs approximately parallel to the wall 11, which is located in the plane yz. A rail 13 is attached to the ceiling 12, from which a fastening device 14, e.g., a hook, together with a suspension element 15, e.g., a rope, hangs. Numbers 13, 14, and 15 are components of a conventional suspension system, which in the prior art is attached to an eyelet 16 on the object 17. Number 1 represents the Fig. 1 The positioning device 1 shown is depicted in a side view. The flexible suspension element 15 is pressed by the positioning device 1 in the direction of coordinate x to the suspension point 18 in a position approximately above the center of gravity S, thereby aligning the object 17 in the desired position parallel to the wall 11.

[0037] Fig. 10 It also shows the entire system in side view. In contrast to Fig. 9, the positioning device 1 comes from Fig. 7 for use. This is hooked under the frame on the front of the object 17, e.g. a picture, and pulls the flexible suspension element 15, e.g. a rope, into the desired position at the suspension point 18, in order to enable the object 17 to be positioned in relation to the wall 11 as desired.

[0038] Fig. 11 This shows the state of the art. The entire system is also shown in a side view. The suspension system, consisting of rail 13, fastening device 14 (e.g., a hook), and suspension element 15 (e.g., a rope), is attached to the eyelet 16 without a positioning device 1, which means that the upper edge of the object 17 is positioned differently than in Fig. 9 and 10 tilts towards the viewer, essentially in the direction of the coordinate x.

[0039] Fig. 12Figure 17 shows the defined coordinates x, y, and z of space, as well as the geometries and properties relevant for positioning object 17. As an example of object 17, a cuboid painting with its center of gravity S marked by a cross is shown. Object 17 is depicted parallel to the plane yz, which is equivalent to a wall 11. A viewer of object 17 essentially looks in the direction -x. Following the force of gravity parallel to the direction -z, the vertical g of the object extends through its center of gravity S. The center of gravity S lies in the x direction in front of the wall 11, which is represented by the plane yz. The vertical g lies on the plane E, a plane of the family of planes, which is rotated by an angle α relative to the plane yz. The angle α is ideally 0°, and thus parallel to the plane yz, but can also be, as in [reference missing]. Fig. 12The values ​​shown may differ. The plane region E' is the subregion of the plane E that lies above the centroid S in the direction of the coordinate z.

[0040] Fig. 13 Figure 1 shows a positioning device 1 made of sheet metal. It is attached to the mounting points 2 in the area not usually visible and / or on the side of the object 17, e.g., a picture, facing the wall 11; in the case shown, for example, by two countersunk screws that are screwed into the picture through the two holes shown. The adjusting element 3 corresponds to the one in Fig. 2As shown, near the lower attachment point 2, an embodiment of a receiving device 19 is shown, in the opening of which a fastening device 15, e.g., in the form of a hook, can be inserted. This eliminates the need to attach a separate eyelet 16 to the object 17 for fastening a fastening device 14. The receiving device 19 can also assume other geometric shapes and sizes to fit well with a specific or a variety of different fastening devices 15.

[0041] Fig. 14 Figure 1 shows a positioning device 1 made of sheet metal. It is attached to the mounting points 2 in the area not usually visible and / or on the side of the object 17, e.g., a picture, facing the wall 11; in the case shown, for example, by two countersunk screws that are screwed into the picture through the two holes shown. The adjusting element 3 corresponds to the one in Fig. 2As shown. Near the lower mounting point 2, an embodiment of a receiving device 19 is shown, which has a height adjustment 20 in the form of a U-shaped bent sheet metal tab. A socket head cap screw projects through this tab in the direction of coordinate x, its head oriented towards the wall 11. The half of the sheet metal tab that rests against the screw head has a through-hole for the screw thread, while the other half has a thread that matches the screw. If a suspension element 15, e.g., in the form of a rope, is now guided through the area between the 180° bend of the sheet metal tab and the socket head cap screw, and the screw is tightened, the sheet metal tab preferably deforms elastically and clamps the suspension element 15 in a desired vertical position.If the position needs to be changed again, the cylinder screw of the height adjustment is loosened, the object 17 together with the positioning device 1 is moved along the suspension element 15, and clamped again in a new position by tightening the cylinder screw. Such a height adjustment 20 eliminates the need for a separate eyelet 16 on the object 17 for attaching a separate mounting device 14, as well as the separate mounting device 14 itself. Other clamping mechanisms, such as clamping wedges or knurled screws, which allow for tool-free clamping, are also suitable for the height adjustment 20. Reference symbol list

[0042] 1 Positioning device 2 Mounting point 3 Adjustment element 4 Step 5 Center mark 6 T-nut 7 Screw 8 Cable guide 9 Cable guide 10 Screw sleeve 11 Wall 12 Ceiling 13 Rail 14 Mounting device 15 Suspension element 16 Eyelet 17 Object 18 Suspension point 19 Receiving device 20 Height adjustment xCoordinate yCoordinate zCoordinate EPlane E'Partial area SCenter of gravity gVertical αAngle

Claims

1. Positioning device (1) for positioning a three-dimensional object (17) suspended on a flexible suspension element (15), in particular on a vertical wall (11), wherein the positioning device (1) has at least one attachment point (2) at which it can be connected to the three-dimensional object (17) and is configured to hold the flexible suspension element (15) at a suspension point (18) which is arranged above the center of gravity (S) of the three-dimensional object (17) and lies substantially in a plane (E) extending vertically through this center of gravity (S), wherein the attachment point (2) is arranged at a distance from the plane (E).

2. Positioning device (1) according to claim 1, characterized by the fact that the suspension point (18) is arranged essentially on a vertical (g) through the center of gravity (S) of the object (17).

3. Positioning device (1) according to at least one of the preceding claims, characterized by the fact thatWhen positioning a three-dimensional object (17) by means of at least two positioning devices (1), the plane (E) is arranged parallel to an orientation of the three-dimensional object (17) or pivoted at an angle (α) to it about the vertical (g) through the center of gravity (S) of the object (17).

4. Positioning device (1) according to at least one of the preceding claims, characterized by the fact that the positioning device (1) is set up to push or pull the flexible suspension element (15) to the suspension point (18).

5. Positioning device (1) according to at least one of the preceding claims, characterized by the fact that the positioning device (1) can be arranged at the at least one attachment point (2) on the side facing the wall (11) or on the side of the object (17) facing away from the wall (11).

6. Positioning device (1) according to at least one of the preceding claims, characterized bya step (4) or a continuously adjustable element for holding the suspension element (15) in a positioned position at the suspension point (18).

7. Positioning device (1) according to at least one of the preceding claims, characterized by a receiving device (19) for receiving the flexible suspension element (15) in particular in the area of ​​the at least one attachment point (2).

8. Positioning device (1) according to claim 7, characterized by the fact that The receiving device (19) has a height adjustment (20) by means of which the vertical length of the flexible suspension element (15) received by it can be adjusted.

9. Positioning system for positioning a three-dimensional object (17), in particular on a vertical wall (11), comprising at least one positioning device (1) according to at least one of the preceding claims and a suspension system comprising at least one flexible suspension element (15) and a fastening device (14) arranged thereon, which can be firmly connected to the three-dimensional object (17) for suspending it.

10. Positioning system according to claim 9, characterized by a height adjustment arranged on the suspension element (15).

11. Method for positioning a three-dimensional object (17), in particular on a vertical wall (11), using a positioning system according to one of claims 9 or 10. characterized byThe steps are: a) Arranging at least one positioning device (1) at at least one attachment point (2) on the three-dimensional object (17) such that a suspension element (15) can be held on it at a suspension point (18); b) Arranging the three-dimensional object (17) on the attachment device (14) of at least one suspension element (15); and c) Holding the suspension element (15) on the positioning device (1) at the suspension point (18).

12. Method for positioning (1) a three-dimensional object (17) according to claim 11, characterized by the fact that When arranging the three-dimensional object (17) on the fastening device (14) in step b), the suspension element (15) is guided to the suspension point (18) on the positioning device (1).

13. Method for positioning a three-dimensional object (17) according to one of claims 11 or 12, characterized bythe next step: d) Adjusting the vertical height of the suspension point (18) by means of the height adjustment arranged on the suspension element (14) or the positioning device (1).

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