DEVICE AND METHOD FOR FASTENING A SUNSHADE

Description

[0001] The invention relates to a device for vertically securing a parasol to the ground and a corresponding method. Such devices are suitable, for example, for anchoring a parasol pole to the ground. They can be used for the reversible assembly and disassembly of parasols.

[0002] Ground anchors for parasols in the form of a sleeve anchored in the ground are known. To secure the parasol, the parasol's pole can be inserted into the sleeve. However, such ground anchors have the disadvantage that over time, the ground can sink, causing the sleeve to become tilted. Furthermore, the sleeve must be positioned exactly vertically in the ground during installation, which involves increased technical complexity.

[0003] State-of-the-art ground anchors often feature flexible cover elements, such as those made of elastomer plastic, to cover the sleeve secured in the ground. These can be designed to be hinged to easily expose the opening in the sleeve for inserting the parasol pole. However, these flexible cover elements are often unable to absorb sufficient forces. This is particularly the case near roads, sidewalks, pedestrian zones, and the like. Furthermore, the flexible cover elements regularly detach from the sleeve, creating an unsecured opening in the ground. The use of comparable metal cover elements is not permitted in many applications due to safety concerns.

[0004] It is possible to tightly seal the opening of such ground sockets, for example, with firmly screwed metal cover plates. This provides a permanent and secure cover, but it entails considerable effort each time the parasol is set up and taken down. This is not practical, for example, for catering establishments where parasols must be set up and taken down daily.

[0005] US 2013 / 0 153 737 A1 discloses a compact umbrella stand with a holder in which sleeves of various diameters can be selected and attached to the shaft of the umbrella stand. In this way, poles of different diameters can be attached. DE 38 11 401 A1 describes a coverable ground sleeve with which a pole can be held. A pole can be attached using a clamping element containing a rubber ring and an associated metal ring. US 3 612 287 A discloses attachments for floor displays in which conical, tubular support elements, possibly with the aid of conical adapters, are inserted into conical ground plugs.

[0006] The object of the invention is to provide a further developed device and an associated method for attaching a parasol.

[0007] This object is achieved by the device according to claim 1 and the method according to the independent claim. Further embodiments are specified in the subclaims.

[0008] To solve this problem, a device for vertically mounting a parasol serves. The device comprises an outer bracket for anchoring on or in a surface and an inner bracket for holding the parasol with an opening for inserting the parasol. The inner bracket can be positioned inside the outer bracket and can be held by the outer bracket.

[0009] The device according to the invention decouples the part anchored in the ground from the parasol to be attached by means of the two interlocking brackets. This makes it possible, for example, to influence the angle of the inner bracket to the outer bracket. In this way, a slanted alignment of a parasol, for example due to subsidence, can be corrected. Any inaccuracies in the positioning of the outer bracket in the ground can also be compensated for. This allows for larger tolerances, which reduces the technical complexity of the installation.

[0010] The device is suitable for vertically mounting the parasol underground. Of course, the device can also be used for non-vertical, for example, inclined, mounting of the parasol underground and / or for wall mounting. The device is particularly suitable for reversible mounting of the parasol, allowing, for example, regular assembly and disassembly.

[0011] The device is suitable for attaching a parasol. The device is particularly suitable for attaching other objects. Other objects that can be attached with the device include an umbrella, a lamppost, a flagpole, a pole for an awning, a support post for a traffic sign, or any other pole or post. The device is essentially used to attach the lower part of a parasol pole or other object. It is also possible to attach a transition tube. Transition tubes are used to connect certain umbrellas to ground sockets at a desired height.

[0012] The external bracket is typically used for permanent anchoring in the ground with an essentially vertical orientation. Anchoring to a ground is also possible as a supplement or alternative. The orientation refers to a central longitudinal axis of the external bracket, which defines the longitudinal direction of the external bracket. Permanent anchoring can be achieved, for example, by concreting. The external bracket can be anchored in the ground, in or to a floor covering and / or in or to a building structure. The external bracket is designed so that its outer side and underside contact the ground and are firmly anchored therein. The underside of the external bracket can be open or closed. In this way, a fixed and permanent arrangement of the device and / or the external bracket in the ground is achieved.

[0013] The inner bracket is used to hold the parasol, for example, its pole or a connecting tube that can be connected to the parasol. The inner bracket is generally used to hold an elongated object that is to be secured vertically to the ground. The inner bracket has an opening for inserting the pole. A large portion of the parasol thus protrudes from the opening.

[0014] The inner mount is a separate component from the outer mount. The inner mount can be arranged at least partially and, in particular, entirely within the outer mount. In other words, it is not excluded that a section of the inner mount, for example, an upper section, protrudes from the outer mount during intended use. In one embodiment, the inner mount, when arranged in the outer mount, does not protrude, or does not protrude significantly, from the outer mount.

[0015] When used as intended, the inner bracket is firmly connected to the outer bracket and / or the opening is approximately level with the surrounding ground. In other words, the device is below ground level. Its top can be flush with the ground surface. This allows the parasol or pole to be inserted from above or through the opening into the inner bracket, where it is held by the inner bracket.

[0016] In particular, the inner holder defines a cavity for accommodating a portion of the parasol or pole. For example, it can be designed such that a lower portion of the parasol pole can be inserted precisely into the cavity defined by the inner holder, so that the parasol is held in place by the inner holder. The cavity can have a circular cross-section so that it can accommodate round parasol poles. The inner holder can have a support element inside the cavity defined by it, on which a lower edge of the parasol can rest when the parasol is held. The support element can be arranged in the lower portion of the inner holder, for example at the lower end. The inner holder can have fastening means for fastening the parasol, in particular for form-fitting fastening.For example, the inner bracket can have a cross bolt to which the parasol pole can be connected via a bayonet lock and thus secured against being pulled out.

[0017] The outer bracket can hold the inner bracket within its interior. The outer bracket and inner bracket can thus be rigidly connected to each other. The inner bracket is positioned inside the outer bracket and fixed in this position. In one embodiment, the device is configured such that the outer bracket and the inner bracket can be connected to each other in a force-fitting and / or form-fitting manner.

[0018] When not connected to one another, the inner bracket and outer bracket are generally movable relative to one another. When held or connected, this movement is prevented. The holding or connection fixes the relative position of the inner bracket and the outer bracket. The connection is, in particular, a reversible connection. It can be designed as a screw connection. In one embodiment, the device comprises at least one fastening means, such as a first screw for the force-fitting and / or form-fitting connection of the outer bracket to the inner bracket. "Screw" in the sense of the invention also includes threaded pins, also referred to as grub screws, and threaded bolts. In particular, however, the first screw has a head.

[0019] The inner and outer brackets are typically hollow bodies of different sizes. In particular, the inner and outer brackets are each elongated. The inner bracket is typically dimensioned so that it can be inserted into the outer bracket along its longitudinal direction. The inner bracket can then be connected to the outer bracket.

[0020] In one embodiment, the inner holder and / or the outer holder has a circular cylindrical basic shape.

[0021] By "circular-cylindrical basic shape" we mean that certain deviations from the circular-cylindrical shape may be present, for example in the form of recesses, openings, attachments, or the like. When used as intended, the basic shape is, in particular, essentially vertically oriented. In one embodiment, an outer wall and / or an inner wall of the inner support has a circular cross-section. In one embodiment, an outer wall and / or an inner wall of the outer support has a circular cross-section. Both the inner support and the outer support are made of a tube. In this way, a very stable and durable device can be provided with little technical effort.

[0022] For an inner diameter DI,A of the outer support and an outer diameter DA,I of the inner support, the following applies: DI,A = F * DA,I . Where: F ≥ 1.3, in particular F ≥ 1.5.

[0023] The inner diameter of the outer bracket is the diameter of the cavity enclosed by the outer bracket. This does not preclude the possibility of smaller diameters in areas of the outer bracket, for example, in the area of a support element or a radially inwardly projecting connecting area of the outer bracket. In particular, the inner bracket is rotatable about a vertical axis and / or pivotable about a horizontal axis in the cavity.

[0024] In one embodiment, F ≥ 1.8 or F ≥ 2 applies. In other words, there is a free space between the inner and outer brackets. This embodiment makes it possible to compensate for deviations in the angle between the inner and outer brackets, as rotation of the inner bracket inside the outer bracket is possible over a wide range. This is possible even if the inner and outer brackets are long. This is advantageous for ensuring particularly firm anchoring in the ground and / or a particularly firm hold for the parasol to be attached. The factor F is in particular less than 10.

[0025] The outer diameter of the outer bracket can be between 50 mm and 250 mm, in particular between 75 mm and 180 mm and, for example, approximately 80 mm or approximately 160 mm. The inner diameter of the outer bracket can be between 50 mm and 250 mm, in particular between 80 mm and 180 mm. The inner diameter of the inner bracket can be between 20 mm and 125 mm, in particular between 35 mm and 70 mm. This means that masts with the same or a slightly smaller outer diameter can be held. The outer diameter of the inner bracket can be between 25 mm and 125 mm, in particular between 40 mm and 90 mm. The wall thickness of the inner bracket and / or the outer bracket can be between 3 mm and 10 mm, in particular between 4 mm and 8 mm.

[0026] In one embodiment, the device is designed such that a force-locking and / or form-locking connection of the inner holder to the outer holder is achieved by a plurality of first screws.

[0027] The inner bracket is therefore held by the outer bracket in a force-fitting and / or form-fitting manner. In particular, the inner bracket is firmly screwed to the outer bracket. Preferably, at least three, in particular five, first screws are provided. These can be evenly distributed over the circumference of the inner bracket and / or the outer bracket. The device can comprise the first screws. In this way, a uniform and firm connection between the outer bracket and the inner bracket is ensured. This design enables manufacture, assembly, and adjustment of the device with little technical effort.

[0028] In one embodiment, the first screws are aligned substantially parallel to a longitudinal direction of the outer bracket. "Substantially parallel" means, for example, that the angle between the first screws and the longitudinal direction is no greater than 15° and / or 8°. In particular, the first screws are aligned vertically. This allows for good accessibility even when mounted, while simultaneously ensuring a firm hold, ensuring secure attachment even under typical wind loads acting on the parasol.

[0029] In one embodiment, the inner bracket has a radially outwardly projecting flange for a force-fitting and / or form-fitting connection to the outer bracket. In particular, the flange contains a plurality of holes for the arrangement of first screws.

[0030] The flange serves to provide a force-locking and / or form-locking connection to the outer bracket. It can therefore be connected to a part of the outer bracket, in particular to a connection area of the outer bracket, in a force-locking and / or form-locking manner. The flange is preferably the only part of the inner bracket that serves to connect to the outer bracket and / or that contacts the outer bracket. The first screws serve to provide a force-locking and / or form-locking connection. In particular, the flange is arranged at an upper end of the inner bracket. Accordingly, an outer surface of the flange forms an axial boundary of the inner bracket. In particular, the flange extends perpendicular to the longitudinal direction of the inner bracket.

[0031] The flange can have a circular ring-shaped basic shape, particularly if the inner support has a circular-cylindrical basic shape. "Circular ring-shaped basic shape" means that certain deviations from the circular ring shape can be present, for example in the form of recesses, openings, or the like. The flange can, for example, have recesses through which water can drain downwards. The flange protrudes radially outward from the wall of the inner support aligned along the longitudinal extent of the inner support. The flange does not necessarily have to be circumferential, but can simply be arranged in sections on the circumference of the inner support. It can rest against an outer wall of the inner support.

[0032] In particular, the holes are designed as through holes. The holes are in particular aligned substantially parallel to the longitudinal direction of the inner bracket. Typically, the holes serve for the insertion of the first screws, which are fastened in underlying threaded holes of the outer bracket. The holes can be designed as countersunk holes so that a substantially flat surface can be ensured when first screws are arranged in the holes. The holes can be designed in such a way, in particular by means of suitable diameters and suitable countersinks, that the first screws can be inserted through the holes at different angles. In this way, the flange and the connecting region can also be fastened to one another by means of the first screws in non-parallel relative angular positions. The angular positions each relate to the longitudinal directions of the inner and outer bracket.

[0033] In one embodiment, the outer bracket has a radially inwardly projecting connection area for a force-fitting and / or form-fitting connection to the inner bracket. In particular, a plurality of holes for the arrangement of first screws are arranged in the connection area.

[0034] The connection area serves for the force-fitting and / or form-fitting connection with the inner holder. It can therefore be connected in a force-fitting and / or form-fitting manner to a part of the inner holder, in particular to a flange of the inner holder. Preferably, the connection area is the only part of the outer holder that serves for the connection to the inner holder and / or that contacts the inner holder. The first screws serve for the force-fitting and / or form-fitting connection. In particular, the connection area is arranged in the region of an upper end of the outer holder. A slight distance, for example between 3 mm and 30 mm, in particular between 5 mm and 15 mm, can be arranged between the upper end of the outer holder and the connection area. This enables the inner holder positioned inside the outer holder to be flush with the wall of the outer holder on the upper side.

[0035] In particular, the connecting region extends perpendicular to the longitudinal direction of the outer bracket. The connecting region can have a circular ring-shaped basic shape, in particular if the outer bracket has a circular cylindrical basic shape. The connecting region projects radially inward from the wall of the outer bracket, which is aligned in particular along the longitudinal extent of the outer bracket. The connecting region does not necessarily have to be circumferential, but can merely be arranged in sections on the circumference of the outer bracket. It can abut an inner wall of the outer bracket.

[0036] The connection area is typically open radially inward. This allows for the insertion of the inner holder. In one embodiment, an inner diameter of the connection area is larger than an outer diameter of the inner holder by a factor between 1.005 and 1.15, in particular between 1.01 and 1.1, and in one embodiment between 1.03 and 1.08.

[0037] In particular, the holes are designed as threaded holes with an internal thread for fastening the first screws. Typically, they are through holes. The holes are aligned, in particular, parallel to the longitudinal direction of the outer bracket. Typically, they serve to fasten first screws that have been inserted through holes in the inner bracket, thus securing the inner bracket to the outer bracket.

[0038] In one embodiment, the device has at least one adjustment means. The at least one adjustment means is configured to adjust a relative angle between the inner holder and the outer holder.

[0039] In particular, the adjustment means is configured such that it is adjustable in the unconnected state, thus defining an angle between the inner bracket and the outer bracket. This defined angle is then fixed by holding the inner bracket in the outer bracket. In other words, the connection fixes the relative position of the inner bracket to the outer bracket. For example, a wedge washer or one or more spacers can serve as the adjustment means. However, the adjustment means preferably comprise second screws, as explained below.

[0040] In one embodiment, the inner bracket has a radially outwardly projecting flange, and the outer bracket has a radially inwardly projecting connecting region. The flange and the connecting region serve to provide a force-locking and / or positive-locking connection between the inner bracket and the outer bracket. The at least one adjustment means is configured to set different distances between the flange and the connecting region in different regions of the flange and the connecting region.

[0041] In particular, the flange and the connecting region are substantially complementarily shaped. They can be directly adjacent to one another at least in some areas and / or their spacing from one another can be adjusted at least in some areas by the at least one adjusting means. When used as intended, the flange and the connecting region are preferably aligned parallel to one another or at an angle of <15°, in particular <10°, and typically <7°. The angle is measured between the longitudinal direction of the flange and the longitudinal direction of the connecting region, both of which are approximately horizontal.

[0042] In a further embodiment, at least three adjustment means are provided. Each adjustment means comprises a second screw and a threaded hole. The threaded hole is arranged in the flange of the inner bracket or in the connection area of the outer bracket. The second screw can be positioned in the threaded hole such that it adjusts a distance from the other part depending on its longitudinal position.

[0043] A second screw can, for example, be designed as a threaded pin, also known as a grub screw or worm screw. The second screws can be arranged in holes provided for this purpose in the flange or the connecting area and their longitudinal position can be adjusted by turning. The free ends of the second screws then rest on the surface of the other part and thus influence the distance. Due to better accessibility when the inner bracket is inserted on the top side, it is preferable to provide the holes for the second screws in the flange of the inner bracket so that the second screws rest on the connecting area of the outer bracket and in this way define the distance between the inner bracket and outer bracket.Threaded pins have the advantage that they can be screwed completely into the hole, thus allowing a particularly wide adjustment range and a flush finish with the surface. Preferably, at least three and, for example, five secondary screws are provided, evenly distributed around the circumference of the flange or the connection area. This allows for particularly easy angle adjustment in all directions and distributes any forces that may arise, for example, due to wind loads, across several secondary screws.

[0044] In one embodiment, the second screws are aligned substantially parallel to a longitudinal direction of the outer bracket and / or substantially vertically. This allows for particularly easy angle adjustment due to the good accessibility.

[0045] In a further embodiment, the device comprises a closure part. The closure part comprises a cover element for at least partially closing the opening of the inner holder. The closure part further comprises a base element, firmly connected to the cover element, for arrangement inside the inner holder.

[0046] The cover element serves to close the opening of the inner bracket. In this way, the opening remaining in the ground can be securely and tightly closed, for example after a parasol has been taken down in the evening. In particular, the cover element is made of metal, for example, hot-dip galvanized steel, in order to meet the requirements regarding its mechanical stability. In particular, the closure part and inner bracket are designed such that, when the closure part is inserted into the inner bracket, the cover element is flush with an outer surface of the inner bracket. The outer surface is, in particular, an upper surface of the flange of the inner bracket.

[0047] Typically, the lid element is designed to largely close the opening of the inner holder. However, it may also have an opening, such as an access opening for removing the closure part.

[0048] The base element is firmly connected to the cover element. It is positioned inside the inner bracket and thus holds the closure element. This prevents accidental removal of the closure element, for example, due to negative pressure from vehicles driving over it. Devices designed in this way are approved for use in public spaces and can therefore be used in a variety of ways.

[0049] This design offers the advantage of providing a secure closure for the opening, which can be easily inserted and removed manually without the need for tools. This significantly simplifies handling, especially during regular or daily insertion and removal. Even with an inclined orientation of the external and / or internal bracket, the cover element described can be securely flush with the ground surface and does not protrude beyond it.

[0050] In one embodiment, the base element has a length L and the cover element has a maximum extension E max . The following applies: L ≥ E max .

[0051] The length of the base element is measured along the longitudinal direction of the base element between the two axial ends of the base element. The maximum extension of the cover element is the length of the cover element measured in the plane of the cover element at the point of greatest extension. Specifically, this refers to the diameter of the cover element.

[0052] In other words, the vertical extension of the base element is greater than the horizontal extension of the lid element. This prevents accidental removal of the closure element due to tilting. The closure element is anchored particularly firmly, resulting in a particularly secure closure of the opening.

[0053] In one embodiment, L ≥ 1.2 * E max , in particular L ≥ 1.5 * E max . In one embodiment, the length L extends over at least 50% of the length of the inner support. In one embodiment, the foot element is dimensioned such that it rests on a base part of the outer support or the inner support or a support element of the inner support located in the lower region of the inner support.

[0054] In one embodiment, the base element consists of a tube, in particular with a circular cross-section, or of four plate-shaped elements that are distributed substantially uniformly in the circumferential direction and firmly fixed to one another.

[0055] The base element can therefore be cross-shaped or circular when viewed along its longitudinal direction. Each of the plate-shaped elements is aligned substantially perpendicular to the two adjacent plate-shaped elements. Each pair of plate-shaped elements encloses an angle of 90°. For example, the base element can be composed of two metal plates arranged substantially perpendicular to one another, which penetrate one another centrally and thus form the four plate-shaped elements. In particular, the plates or plate-shaped elements are connected to one another by welding.

[0056] In this way, a foot element with high strength can be manufactured with particularly low technical effort. Furthermore, thanks to its three-dimensional design, the foot element produced in this way can be anchored in the inner bracket in all radial directions, effectively preventing accidental removal of the locking part.

[0057] In one embodiment, the inner mount and / or the outer mount has a length between 25 cm and 80 cm. In particular, the length of the inner mount and / or the outer mount is between 35 cm and 60 cm.

[0058] The length is measured along the longitudinal direction of the inner or outer bracket. This design has proven to be optimal in terms of the balance between the strength of the parasol on the one hand and material usage, cost, and effort on the other.

[0059] In a further embodiment, the outer bracket has a radially outwardly projecting base at one end. The base serves to position the outer bracket on a floor area. For example, the base is designed as a base plate.

[0060] The base section is arranged, in particular, at the end of the external bracket opposite the connection area, i.e., at the lower end. It protrudes beyond the outer wall of the external bracket on at least one side, and in particular on several different sides. A base plate protrudes beyond the outer wall, in particular over the entire circumference of the outer wall. The base section serves to set up the external bracket, for example, on a floor area in an excavation pit, for the purpose of anchoring it in the subsoil. For example, this allows the external bracket to be easily and securely positioned at the desired location before concreting a foundation for the external bracket.

[0061] In a further embodiment, the inner bracket and the outer bracket are made of metal. In particular, the entire device is made of metal. Metal refers to a metallic material, thus including alloys. Steel is used in particular. The metallic material typically has a corrosion-protection coating. Hot-dip galvanized steel is preferred.

[0062] A further aspect of the invention is the use of a device according to the invention for securing an object, such as a parasol, to the ground. All features, embodiments, and effects of the device described above also apply to the use.

[0063] Another aspect of the invention is a method for securing an object, such as a parasol, to the ground. The method utilizes the device according to the invention. The outer mount is anchored on or in the ground. The inner mount is positioned inside the outer mount and held by the outer mount. The object is inserted into the inner mount.

[0064] All features, embodiments, and effects of the device described above also apply to this method and to the method for changing the angle described below. In particular, the method comprises the force-fitting and / or form-fitting connection of the inner holder to the outer holder. The object is in particular fastened to the inner holder. For example, a section of the object can be received inside a cavity defined by the inner holder. In this case, an outer contour of the object and an inner contour of the inner holder can be complementarily shaped, so that simply by inserting the object, it can be held by the inner holder.

[0065] A further aspect of the invention is a method for changing the angle of an inner bracket. A device according to the invention is provided. Optionally, first screws are at least partially loosened so that a connection between the outer bracket and the inner bracket is released. The length position of at least one second screw, in particular a grub screw, is adjusted in order to influence distances between the flange and the connecting region in different areas of the flange and the connecting region. Subsequently, the first screws are optionally tightened again. Adjusting the length position of the at least one second screw changes the angle between the inner bracket and the outer bracket.

[0066] Exemplary embodiments of the invention are explained in more detail below, also with reference to figures. Features of the exemplary embodiments can be combined individually or in multiples with the claimed subject matter, unless otherwise stated. The claimed scope of protection is not limited to the exemplary embodiments.

[0067] They show: Figure 1: an outer holder, Figure 2: an inner holder, Figure 3: a first view of a closure part, Figure 4: a second view of the closure part from Figure 3 , Figure 5: a device with an outer holder and an inner holder in a first relative position, Figure 6: the device from Figure 5 in a second relative position, Figure 7: an exploded view of an embodiment of the device, Figure 8A: a partially sectioned view of a device with inserted closure part, and Figure 8B: a partially sectioned detail A of Figure 8A .

[0068] Figure 1 shows an external bracket 10 of an exemplary embodiment of a device according to the invention for vertically fastening a parasol. The external bracket 10 has a circular-cylindrical basic shape and is made of a tube 11 made of steel. The external bracket 10 serves for anchoring in a subsurface. For this purpose, it can be anchored in the ground in the upright orientation shown, so that the upper end of the tube 11 is approximately flush with the ground surface. The central longitudinal axis 12, which corresponds to the longitudinal direction of the external bracket 10, is aligned approximately vertically. Of course, however, it is not excluded that the device can also be mounted at different angles.

[0069] On the underside, the external bracket 10 has a radially outwardly projecting base section, which allows it to be securely positioned on a ground area for anchoring. For example, it can be placed on the base of an excavation pit before being cast with concrete. The base section is designed as a base plate 19, which is welded to the lower end face of the pipe 11.

[0070] The outer bracket 10 is a hollow body and serves to hold an inner bracket within it, which in turn holds the pole of a parasol or similar device. For this purpose, the outer bracket 10 has a radially inwardly projecting connecting area 14, with which it can be connected to the inner bracket in a force-fitting and / or form-fitting manner. The connecting area 14 is designed as a steel ring that is aligned perpendicular to the central longitudinal axis 12 and welded inside the tube 11. The steel ring has a thickness of between 5 mm and 20 mm. In the embodiment shown here, the connecting area 14 is designed to be circumferential.

[0071] The connecting area 14 defines an opening 18 in its radial interior through which the inner holder can be inserted from above. The connecting area 14 is arranged in the area of the upper end of the outer holder 10. However, there is a distance of approximately 10 mm between the upper edge of the outer holder and the connecting area 14, which is measured parallel to the central longitudinal axis 12. In this way, there is a free space 15 inside the outer holder 10 in the area in which the wall of the outer holder 10 axially projects beyond the connecting area 14. A flange of an inner holder can be arranged in this area so that the upper surfaces of the outer holder 10 and the inner holder are flush with one another.

[0072] Five holes 16 are arranged in the connecting area 14, evenly distributed around the circumference. These holes are designed as through holes and each have an internal thread, allowing the flange of the inner bracket to be attached to the connecting area 14 using suitable first screws. Furthermore, recesses 17 are arranged in the connecting area, through which any water that penetrates can drain away when installed.

[0073] An exemplary embodiment of a corresponding inner holder 20 is shown in Figure 2shown. The inner bracket 20 also has a circular-cylindrical basic shape and is made of a tube 21 made of steel. This tube has a significantly smaller diameter than the tube 11 of the outer bracket. The central longitudinal axis 22, which corresponds to the longitudinal direction of the inner bracket 20, is vertically aligned when used as intended. The inner bracket 20 is a hollow body and has a central opening 28 at its upper end through which the parasol pole or a similar object can be inserted to be held by the inner bracket 20.

[0074] The inner holder 20 is designed to be mounted inside an outer holder, such as Figure 1shown, and to be held firmly there. For this purpose, the inner holder 20 has an outwardly projecting flange 24 which can be connected to the connection area of the outer holder in a force-fitting and / or form-fitting manner. The flange 24 is designed as a steel ring which is aligned perpendicular to the central longitudinal axis 42 and is welded to the upper end face and / or to the outer wall of the pipe 21. The steel ring has a thickness of between 5 mm and 20 mm. The thickness corresponds in particular to the thickness of the connection area of the outer holder. In the embodiment shown here, the flange 24 is designed to be circumferential.

[0075] Five holes 26 are arranged in the flange 24, which are evenly distributed around the circumference. The positions of the holes 26 correspond to the positions of the holes in the connection area of the outer bracket, so that the holes of both elements are aligned when used as intended. The holes 26 are countersunk so that, on the one hand, the heads of the first screws can be countersunk and can be flush with the top side of the flange 24. On the other hand, the countersinks allow the arrangement of the first screws in orientations that deviate from the completely parallel alignment to the central longitudinal axis 22, without parts of the screw head protruding beyond the top side of the flange. In this way, the outer bracket can hold the inner bracket 10 at different angles, as shown in the Figures 5 and 6shown. The holes 26 are designed as through holes and, in particular, without internal thread, so that the first screws, which are screwed into the underlying holes of the outer bracket, can be inserted through the holes 26.

[0076] In the region of the connection between the flange 24 and the pipe 21, a free space 25 is formed, in which a cover element of a closure part can be positioned to at least partially close the opening 28. The free space 25 is formed in that the diameter of an inner opening of the flange 24 is larger than the inner diameter of the pipe 21 and the flange 24 is welded to the pipe 21 in such a way that it projects beyond the latter by a certain length. This length is between 3 mm and 30 mm, in particular between 5 mm and 15 mm and, in the example shown here, approximately 10 mm. In one embodiment, the length corresponds to the thickness of the flange 24. This design allows the upper end face of the pipe 21 to be exposed through the inner opening of the flange 24. This enables the cover element to be flush with the upper side of the flange 24.At the same time, a cover element can be arranged on the upper end face of the tube 21 and held by the tube 21. Forces arising when the cover element is loaded are transmitted into the tube 21 and via this into the external support, which is firmly anchored in the ground.

[0077] In addition to the holes 26, five threaded holes 44 are arranged in the flange 94. These are also evenly distributed around the circumference and are each arranged centrally between two holes 26. The threaded holes 44 serve to accommodate second screws, in this case grub screws, with which an angle between the connection area of the outer bracket and the flange 24 can be set. This is shown in the Figures 5 and 6 shown and described in detail below.

[0078] The Figures 3 and 4 show a closure part 30 for closing the opening of the inner holder. Figure 3 shows the closure part 30 from diagonally above, while Figure 4the closure part 30 shows diagonally from below.

[0079] The closure part 30 comprises a cover element 32 with which the opening of the inner holder can be at least partially closed. This is advantageous and usually required in publicly accessible areas when no parasol or the like is held by the device. This is the case, for example, when parasols in catering establishments are dismantled overnight. In this case, for safety reasons, a closure of the opening in the ground is necessary, which on the one hand is mechanically resilient and on the other hand is protected against accidental removal. The opening in the inner holder is not completely closed, however, since an access opening 38 is also arranged radially inwardly of the cover element 32. This serves to easily remove the closure part 30, for example when a parasol is to be set up.The access opening 38 has a diameter of a few centimeters, which can also be used without restrictions in public traffic areas.

[0080] To close the opening in the inner holder, the closure part 30 is inserted into the opening from above. A radially outer region of the cover element 32 rests in the above-described free space 25 of the inner holder and thus rests on the tube of the inner holder. At the same time, the upper side of the cover element 32 is flush with the upper end face of the tube of the inner holder.

[0081] The lid element 32 is designed as a circular disc. The closure part 30 further has a base element 34 welded to the lid element 32, which extends downward from the lid element 32 along its longitudinal direction defined by its central longitudinal axis 33. The base element 34, like the lid element 32, is made of steel.

[0082] The base element 34 consists of four plate-shaped elements 36, namely steel plates, which are distributed substantially evenly in the circumferential direction and are firmly fixed to one another by welding. Viewed along the central longitudinal axis 33, it is thus cross-shaped. It is irrelevant whether, to produce the base element 34, two steel plates penetrating one another centrally are positioned perpendicular to one another and welded together, or whether the base element 34 is composed of four individual plates. As further shown in Figure 4As can be seen, the plate-shaped elements 36 have respective recesses in the top central region, thus facilitating engagement in the engagement opening 38. Furthermore, the plate-shaped elements 36 decrease in width downwards, resulting in an overall conical shape of the base element 34, which facilitates insertion into the inner holder. However, in contrast to the embodiment shown here, the base element 34 can also be made, for example, from a tube extending along the central longitudinal axis 33.

[0083] The cover element 32 has a maximum extension E max , which here corresponds to the outer diameter of the circular disc measured perpendicular to the central longitudinal axis 33. The base element 34 has a length L, which is measured between the connection area with the cover element 32 and the lower axial end of the base element 34, as in Figure 4The length L of the base element 34 is a multiple of the maximum extension E max of the cover element 32. In this way, an unintentional removal of the closure part 30 from the inner holder is prevented by tilting of the closure part 30 inside the inner holder.

[0084] The Figures 5 and 6show in a simplified schematic representation the use of the device 1 according to the invention. In each case, a sectional drawing of the device 1 is shown, in which the inner holder 20 is arranged inside the outer holder 10. The flange 24 of the inner holder 20 is supported radially on the connecting area 14 of the outer holder 10. The opening 28 of the inner holder 20 is free, so that a sunshade can be inserted from above. The device 1 is anchored in the ground and the upper edge of the flange 24 is at the level of the ground surface 50. For simplification, the representation of the free space in the area of the connection between the flange and the pipe, as shown in Figure 2 shown, is omitted.

[0085] In Figure 5The outer bracket 10 and the inner bracket 20 are coaxially aligned so that their respective central longitudinal axes 12, 22 are superimposed. This condition occurs, for example, immediately after the installation of the device 1 in the ground. Over time, subsidence may occur, causing the entire device 1 to tilt. This results in tilted parasols, which is undesirable. Such a tilted position can be avoided as shown in Figure 6 shown can be corrected.

[0086] For this purpose, the device 1 has adjustment means 40 with which the angle between the outer bracket 10 and the inner bracket 20 can be adjusted. The adjustment means 40 each comprise a threaded hole 44 and a matching second screw 42, here in the form of a grub screw. The threaded holes 44 are, as shown in Figure 2 , shown in the flange 94 of the inner bracket, so that the grub screws are accessible from above. In the Figures 5 and 6 the cutting plane passes through an adjustment means 40 which is shown on the left side.

[0087] In Figure 5 all grub screws are in the same length positions (axial positions) so that the flange 24 is aligned parallel to the connection area 14. In Figure 6 In contrast, the outer bracket 10 has tilted by a few degrees. For this reason, the length positions of the individual grub screws were adjusted so that the inner bracket is still aligned horizontally. It can be seen that a first distance A1 shown on the left between the flange 24 and the connecting area 14 is smaller than a second distance A2 shown on the right between the flange 24 and the connecting area 14. The central longitudinal axes 12, 22 are also clearly arranged at an angle to each other. Figure 5 however, the distances A1 and A2 are equal.

[0088] The cutting plane of the Figures 5 and 6also passes through a first screw 46 for fastening the inner bracket 20 to the outer bracket 10, which is shown on the right side. The first screws 46 pass through the Figure 2 shown hole 26 of the inner bracket 20 and are screwed into the threaded hole 16 of the outer bracket, which is in Figure 1 It can be seen that a firm connection of the inner bracket 20 to the outer bracket 10 is possible in both relative angular positions.

[0089] To correct the angle between the inner bracket and the outer bracket, the first screws 46 are at least partially loosened, the length position of at least one second screw 42 is adjusted and then the first screws 46 are tightened again.

[0090] Figure 5Furthermore, two further features of the invention are shown. Firstly, an inner diameter DI,A of the outer holder 10 and an outer diameter DA,I of the inner holder 20 are shown. It can be seen that DI,A is significantly larger than DA,I . For example, the inner diameter DI,A of the outer holder is 80 mm and the outer diameter DA,I of the inner holder is 160 mm. Thus, the factor F = 2. The wall thickness of the inner holder and the outer holder is, for example, 5 mm each.

[0091] Furthermore, a cross bolt 27 is shown, which is arranged in the lower region of the tube of the inner bracket 20 and is firmly connected to the inner bracket 20. It is not excluded that the cross bolt 27 can be rotated about its longitudinal axis. Corresponding recesses are arranged in the lower region of a mast of an associated parasol. By axially rotating the mast, the recesses on the cross bolt 27 can be hooked into the manner of a bayonet lock, thus establishing a positive connection. In this way, a parasol can be particularly firmly connected to the device 1.

[0092] Figure 7shows a further embodiment of the device. To avoid duplication, particular attention is paid to the differences from the examples shown above. The closure part 30 of the device here also comprises a cover element 32 with an engagement opening 38 and a base element 34. However, the base element 34 is also designed as a steel tube with a circular cross-section. At its lower end facing away from the cover element 32, it comprises two opposing recesses 39 which can be locked to the cross bolt of the inner holder 20 in the manner of a bayonet lock. However, the recesses are designed at such an angle that insertion and fastening can be carried out without tools, if necessary, since the inclination of the recesses relative to the vertical is small and thus the rotation of the closure part about its central longitudinal axis is promoted by the downward force of gravity.However, removal is only possible with a twisting motion and with a suitable auxiliary device (key). The locking part 30 shown can thus be attached particularly securely.

[0093] In addition, the external bracket 10 includes a floor bracket 40 attached to the base plate 19. This comprises four threaded rods and a cross-shaped support structure made of two connected steel beams, which can be placed on a floor. The threaded rods each connect a corner of the base plate to one of the steel beams at a variable height. This allows the position of the external bracket 10 to be adjusted with particular precision and variability during assembly, for example, before concreting.

[0094] The Figures 8A and 8B show an inner holder 20 with inserted closure part 30, in particular according to the embodiment of Figure 7 . In Figure 8Bthe inner bracket 20 is not shown in order to show the arrangement of the cross bolt 27 in the closed position of the recess 39. In Fig. 8A the cover element 32 of the closure part 30, which is arranged and fastened in the inner holder 20, is visible from below.

[0095] The engagement opening 38 is slot-shaped, allowing a flat, T-shaped auxiliary device to be inserted from above to remove the closure part 30 from the inner holder 20. The auxiliary device can, for example, consist of a bent and / or welded steel rod whose diameter is smaller than the slot width of the engagement opening 38. During insertion, the cross strut of the "T" points downward. When the auxiliary device is rotated 90° counterclockwise, the two legs of the cross strut abut against respective extended stops 56 of the designated support structure 52 and are thereby aligned in their angular position. By subsequently lifting the auxiliary device, the legs of the cross strut come into contact with respective support bays 54 of the support structure 52, so that the closure part 30 is connected to the auxiliary device in a rotationally fixed manner.By further lifting and then simultaneously rotating and lifting the auxiliary device with the closure part 30 according to the shape of the recess 39, the closure part 30 can be removed from the inner holder 20.

[0096] To secure the closure part 30, the auxiliary device is also positioned in the support bays 54 as described above. The closure part 30 is then inserted into the inner holder and rotated in the reverse order of removal. The shape of the recess 39, as described above, contributes to easy insertion. If necessary, in addition to the weight force, a compressive force can be exerted directly on the cover element 32 from above, e.g., with a foot. List of reference symbols

[0097] device 1 External bracket 10 Pipe 11 central longitudinal axis 12 inner diameter SLIDE Connection area 14 Free space 15 Hole 16 recess 17 opening 18 base plate 19 Internal bracket 20 Pipe 21 central longitudinal axis 22 Outer diameter DA,I flange 24 Free space 25 Hole 26 cross bolt 27 opening 28 locking part 30 central longitudinal axis 33 Foot element 34 length L Maximum extension Emax plate-shaped element 36 Access opening 38 recess 39 Adjustment means 40 Second screw 42 threaded hole 44 First screw 46 Floor mount 48 Distance A1 Distance A2 Terrain surface 50 Investment structure 52 Investment bay 54 stop 56

Claims

1. Device (1) for vertically fastening a sunshade, comprising an outer holder (10) for anchoring on or in a ground and an inner holder (20) for holding the sunshade with an opening (28) for inserting the sunshade, wherein, in the installed state, the inner holder (20) is positioned inside the outer holder (10) and is held by the outer holder (10), wherein the outer holder (10) comprises a tube (11) and wherein the inner holder (20) comprises a tube (21), characterised in that the following applies for an inside diameter DI,A of the tube (11) of the outer holder (10) and an outside diameter DA,I of the tube (21) of the inner holder (20): DI,A = F * DA,I, wherein: F ≥ 1.3, so that, in the installed state, the tube (21) of the inner holder (20) can be positioned at different angles in the tube (11) of the outer holder (10) and can be held in this position.

2. Device (1) according to the preceding claim, characterised in that the inner holder (20) and / or the outer holder (10) has a circular cylindrical basic shape.

3. Device (1) according to one of the preceding claims, characterised in that the device (1) is configured such that a non-positive and / or positive connection of the inner holder (20) to the outer holder (10) is made by a plurality of first bolts (46).

4. Device (1) according to one of the preceding claims, characterised in that the inner holder (20) comprises a radially outwardly projecting flange (24) for non-positive and / or positive connection to the outer holder (10), in particular wherein a plurality of holes (26) are arranged in the flange (24) for the arrangement of first bolts (46).

5. Device (1) according to one of the preceding claims, characterised in that the outer holder (10) has a radially inwardly projecting connecting region (14) for non-positive and / or positive connection to the inner holder (20), in particular wherein a plurality of holes (16) are arranged in the connecting region (14) for the arrangement of first bolts (46).

6. Device (1) according to one of the preceding claims, characterised in that the device (1) comprises at least one adjusting means (40) for adjusting a relative angle between the inner holder (20) and the outer holder (10).

7. Device (1) according to the preceding claim, as far as referred back to claim 4 and claim 5, characterised in that - the flange (24) and the connecting region (14) serve to connect the inner holder (20) to the outer holder (10) in a non-positive and / or positive manner, and - the at least one adjusting means (40) is configured to set different distances between the flange (24) and the connecting region (14) in different regions of the flange (24) and the connecting region (14).

8. Device (1) according to one of the preceding claims, characterised in that at least three adjusting means (40) are provided, wherein each adjusting means (40) comprises a second bolt (42) and a threaded hole (44) located in the flange (24) of the inner holder (20) or in the connecting region (14) of the outer holder (10), the second bolt (42) being positionable in the threaded hole (44) in such a way that it adjusts a distance (A1, A2) to the respective other part as a function of its longitudinal position.

9. Device (1) according to one of the preceding claims, characterised in that the device (1) has a closure part (30), wherein the closure part (30) has a cover element (32) for at least partially closing the opening (28) of the inner holder (20) and a base element (34) firmly connected to the cover element (32) for arrangement in the interior of the inner holder (20).

10. Device (1) according to the preceding claim, characterised in that the base element (34) has a length L and the cover element (32) has a maximum extension Emax, wherein: L ≥ Emax.

11. Device (1) according to one of the preceding claims, characterised in that the inner holder and / or the outer holder has a length of between 25 cm and 80 cm, in particular between 40 cm and 60 cm.

12. Device (1) according to one of the preceding claims, characterised in that the outer holder (10) has at one end a radially outwardly projecting base part, for example a base plate (19), for setting up the outer holder (10) on a floor area.

13. Device (1) according to one of the preceding claims, characterised in that the inner holder (20) and the outer holder (10), in particular the entire device (1), is produced from metal.

14. Method for fixing an object such as a parasol in the ground using the device (1) according to one of the preceding claims, wherein the outer holder (10) is anchored on or in the ground, the inner holder (20) is positioned inside the outer holder (10) and is held by the outer holder (10) and the object is inserted into the inner holder (20).