Foldable grill with gas-powered heating device

Abstract

A collapsible grilling device (10), consisting of a support frame and a grill grate (20) held by the support frame, wherein the support frame is formed from a plurality of plate-shaped walls (11; 12; 13; 14; 15), of which at least four side walls (11; 12; 13; 14) are at right angles to one another and are connected to one another by detachable plug-in connections, and the grilling device (10) can be transferred into a transport and storage state by detaching these plug-in connections, in which the plate-shaped walls (11; 12; 13; 14; 15) and the grill grate (20) are placed one on top of the other to form a flat stack, and the support frame has at least two opposite bearing elements (50;51), in which a heating device (30) operated with a combustible gas is detachably held, characterized in that the heating device (30) is designed as a tubular fuel rod with a plurality of outlet openings (34) for the outflow of combustible gas, wherein the tubular fuel rod has a connection for a storage container with combustible gas in the liquid state at one end, while the opposite end of the fuel rod is closed in a gas-tight manner and has a flattened area (32), that the bearing elements (50; 51) are each formed by an opening in the support frame, into which opening a section of the fuel rod is inserted with play, and a movement of the fuel rod in the direction between the two bearing elements (50; 51) is prevented by at least one locking element (33;35) is limited on the fuel rod, wherein an opening of a first bearing element (50) is formed by a slot through which the flattened portion (32) of the fuel rod is pushed, and an outer locking element (33) lies on the outside of the support frame and an inner locking element lies on the inside of the support frame, that the detachable plug-in connections are each formed by hook tabs (70; 71; 72; 73) which can be interlocked with corresponding insertion slots (91; 92; 93; 94) by a movement in the direction of the edges of the side walls (11; 12; 13; 14) to be connected, and that between the heating device (30) and the grill grate (20) a flame cover (40) formed by a roof-shaped sheet metal and running between the walls (11; 12) with the bearing elements (50; 51) is attached to the support frame by detachable plug-in connections.

Description

[0001] The invention relates to a collapsible grilling device consisting of a support frame and a grill grate held by the support frame. The support frame is formed from several plate-shaped walls connected to one another by detachable plug-in connections. Thus, by detaching these plug-in connections, the grilling device can be converted into a transport and storage state in which the plate-shaped walls and the grill grate are placed one on top of the other to form a flat stack.

[0002] Such collapsible grills are mobile and portable because they are quick and easy to assemble and disassemble. Their individual parts can be easily plugged together, preferably without tools, to create a stable grill. At the same time, the individual parts can also be easily detached from one another, for example to store and / or transport them in a relatively flat stack. Such a portable grill is known, for example, from CH 709799 A2. The portable grill comprises four side walls, a fifth side wall designed as a base section, a grill grate for placing the food to be grilled on, and a charcoal grate for placing charcoal, which, when lit, serves as a heat source. The four side walls are positively connected to one another by means of a plug-in connection, with the grill grate, in turn, being positively connected to two parallel side walls.The portable grill can be easily disassembled into flat individual components, making it ideal for outdoor activities, especially camping or hiking. The portable grill can be stored in a backpack, for example, to save space.

[0003] A disadvantage of this and similar grills, however, is that they are powered by charcoal, which is placed on the charcoal grate to provide the necessary heat for grilling. This means that users of the mobile grill must carry a supply of charcoal on hiking trips. This limits the storage space in their backpack, and the charcoal unnecessarily increases the weight of the luggage they have to carry. Furthermore, charcoal has the disadvantage that an open fire is created when grilling. Particularly in areas with extreme dryness, flying sparks from the charcoal can lead to fires. Operating such a mobile grill can then be dangerous for the user if the dry environment around the portable grill catches fire.Furthermore, in certain areas it may be prohibited to grill with open fire, so portable charcoal grills may not be used.

[0004] Therefore, the object of the invention is to provide a compact, collapsible grill device which can be stored in a space-saving manner and yet can still be operated safely by a user.

[0005] According to the invention, this object is achieved by a collapsible grilling device according to independent claim 1. Advantageous developments of the grilling device emerge from subclaims 2-14.

[0006] It should be noted that the features listed individually in the claims can be combined with one another in any technically reasonable manner and demonstrate further embodiments of the invention. The description further characterizes and specifies the invention, particularly in conjunction with the figures.

[0007] The grilling device according to the invention is collapsible. It consists of a support frame and a grill grate held by the support frame. The support frame is formed from several plate-shaped walls connected to each other by detachable plug-in connections. The plate-shaped walls are preferably made of stainless steel or another heat-resistant metal sheet. The thickness of the sheets used is between 1 and 8 mm, although the grill grate, in particular, can also be thicker than the walls of the support frame.

[0008] By loosening the plug-in connections, the grill device can be converted into a transport and storage state in which the plate-shaped walls and the grill grate are placed on top of one another to form a flat stack. The plate-shaped walls can be completely flat without any elevations or projections, whereby they form a particularly flat stack when placed on top of one another. However, walls with smaller elevations or projections can also be regarded as plate-shaped walls within the meaning of this invention. For example, it can also be provided that in such a stack of individual parts, a projection in one wall engages in a recess in the nearest wall. Slightly angled plates are also to be regarded as plate-shaped walls within the meaning of the invention. For example, such an angle can be on the order of approximately 179° to 160°. Furthermore, oppositely angled sheets can also be used.

[0009] What is essential for the invention, however, is that the individual parts of the collapsible grill device, when placed on top of one another, form a flat stack whose height is many times smaller than its dimensions in the other directions.

[0010] According to the invention, a collapsible grill with a support frame formed in this way has at least two opposing bearing elements in which a heating device operated with a combustible gas is detachably held. The invention thus combines the advantages of a collapsible grill with a fluid-operated heating device such as a gas burner. However, a conventional gas burner is not simply placed under a grill grate, as could be done with known collapsible grills. Rather, special bearing elements are provided on the support frame of the grill, in which a heating device operated with a combustible fluid is detachably held. The heating device is thus held relative to the support frame, which ensures safety during operation of the grill.

[0011] At the same time, however, the heating device can be detached from the support frame, preferably without having to remove any separate fastening devices. Therefore, the heating device can preferably be detached without tools. The heating device is therefore not screwed, riveted, or even welded on, but can be easily detached from the support frame as part of the collapsible grill. For example, positive plug connections can be used for this purpose, but these can be undone again by simple pulling and / or twisting movements. The heating device can also be removed in this way and stored in a stack of individual parts.

[0012] This inventive design of a grill device results in several advantages that are particularly important for outdoor activities such as hiking or camping. All individual components of the grill device can be easily, compactly, and safely stowed and transported by the user, for example, in their hiking gear. Furthermore, it is advantageously possible to dispense with the need to store charcoal in the hiking gear, which would otherwise be required for numerous grilling sessions. When using the grill device according to the invention, only a storage container with the flammable gas in liquid form needs to be taken along. The storage container can be stowed in the hiking gear to save space.

[0013] The problem of safely disposing of used charcoal also doesn't arise. Furthermore, the grill can also be used in areas where open fires with wood or charcoal are prohibited.

[0014] A further advantage of the grilling device according to the invention is that it significantly improves user safety during the grilling process. Uncontrolled sparks, such as those that occur with burning charcoal, can be advantageously prevented by using the heating device that operates with the flammable fluid. In a dangerous situation, the user can immediately contain a flame by turning off the gas supply, thus minimizing or even preventing the risk of a fire.

[0015] Furthermore, attaching the heating device to the grill's support frame ensures that the gas flow direction remains essentially constant and flows directly to the grill grate. The food to be grilled can therefore be precisely positioned over the heat source, ensuring thorough cooking and heating of the food, just like with conventional gas grills.

[0016] Within the meaning of the invention, the mobile grill is therefore a cooking, grilling and / or cooking area that is easy to assemble and disassemble, and is particularly suitable for camping or hiking tours. Individual components of the mobile grill can be assembled and disassembled without great effort. The individual components are compact and stable components that can be stored in a backpack or bag, for example, to save space. The assembly and disassembly of the individual components can be carried out by the user in just a few minutes, and additional tools for assembly and disassembly can preferably be dispensed with because the grill, for example, does not have any screw elements.

[0017] In a preferred embodiment of the invention, the heating device is designed as a tubular fuel rod with multiple outlet openings for the discharge of combustible gas. The outlet openings are arranged, for example, spaced apart in one or more rows and preferably directed toward the grill grate to achieve the desired uniform heating of the food being grilled. Such a fuel rod has the advantage of being easy to handle and can be mounted in storage elements on the support frame of the grill. Furthermore, it can also be easily accommodated in a stack of individual grill components.

[0018] The heating device has a connection for a storage container with flammable gas in the liquid state. In particular, a pressure regulator is provided between the heating device and this storage container. If a tubular fuel rod is used as the heating device, this can have a connection for a storage container with flammable gas in the liquid state at one end, while the opposite end is sealed gas-tight. Flammable gas flows into the fuel rod through a gas inlet opening on the connection side and exits through several holes, where it can be ignited. The gas-tight end of the fuel rod can be welded, glued, or sealed with a pinch weld, for example.

[0019] The connection for a storage container containing flammable gas is preferably located on the outside of the support frame so that it is accessible from the outside when the heating device is installed. It is largely shielded from heat from the heating device. If a storage container is connected to the heating device via a hose, this hose, along with a pressure regulator, is located outside the support frame. The storage container containing the flammable gas can thus be positioned at a sufficiently safe distance from the flames of the heating device. A flexible hose, for example, made of stainless steel, is preferably used.

[0020] The bearing elements for holding the heating device can be designed in various ways. For example, they can be supports, locking devices, recesses, etc. Furthermore, the bearing elements are either designed such that the heating device can be attached to the support frame after the latter has been fully assembled. In an alternative embodiment, the insertion of the heating device is integrated as a step in the assembly of the grill device. In a preferred embodiment of the invention, at least one bearing element is formed by an opening in the support frame, into which a section of the heating device is inserted with play. The heating device can thus be easily inserted into an opening and pulled out again. This is particularly suitable for heating devices in the form of fuel rods that are pushed through an opening.Preferably, both bearing elements are designed as opposite openings into which the heating device is inserted with play.

[0021] However, to increase the safety of the grill device, it is preferably provided that movement of the heating device in the direction between the two bearing elements is limited by at least one locking element on the heating device. This prevents the heating device from being accidentally pulled or pushed out of the support frame. Such a locking element can also be designed in various ways. It should be designed in such a way that, when the heating device is installed, it limits its movement in the direction between the two bearing elements, i.e., a slight movement can optionally be permitted. To remove the heating device, however, the locking element can be overcome by simple pulling and / or turning movements of the heating device.

[0022] For example, external or internal locking elements can be used. An external locking element is located on the outside of the support frame, while an internal locking element is located on the inside of the support frame. An opening within the support frame can accommodate a section of the heating device in such a way that it is held in the opening by a positive fit when the grill is in operation. However, this positive fit can be released for disassembly of the grill with simple pulling and / or rotating movements of the heating device.

[0023] In one embodiment of the invention, a locking element used for this purpose is formed by a fastening section which protrudes from the heating device at an angle α to the longitudinal axis of the latter and has a height H in this direction that is greater than the height h of the opening of a bearing element. This refers to the operating state of the grill device in which it is positioned on a substantially horizontal plane. The fastening section protrudes in particular at an angle α of approximately 90° to the longitudinal axis of the heating device. If, for example, a horizontally running slot with a height h is used as the opening, an outer locking element can have such a fastening section, which is angled either downwards or upwards. The fastening section is located on the outer side of the support frame and abuts this outer side when it is pulled inwards with the heating device, since it does not fit through the slot.

[0024] To mount the heater to the support frame using this angled mounting section, the heater is tilted slightly around the longitudinal axis of the slot in the support frame, allowing the mounting section to be guided through the slot with a tilting movement. To remove the heater, this movement is performed in the opposite direction. The locking element therefore only limits the heater's movement when it is ready for use, but this can be released by simple pulling and / or turning movements. This secures the heater within the grill, yet can be easily and intuitively released without the need for tools.

[0025] A blocking element can also be formed by a widened projection whose width B is greater than the width b of the opening of a bearing element. Such a blocking element is preferably formed as an inner blocking element on the inside of the support frame. This prevents the heating device from being pushed outward through an opening. This is particularly advantageous for a tubular fuel rod, since it could otherwise be pushed unhindered through two opposite openings.

[0026] In one embodiment, an inner blocking element and an outer blocking element are provided at only one end of the heating device, so that the heating device is limited in an opening against inward and outward movement. Blocking elements can then be omitted at an opposite opening. If, for example, a tubular fuel rod is used as the heating device, one embodiment of the invention can provide for a bearing element to be designed as a horizontal slot in the support frame, through which a flattened, angled fastening section at the end of the fuel rod is guided to form an outer blocking element. The described projection is also formed as the inner blocking element at this end of the fuel rod. The opposite bearing element, on the other hand, is designed as a through-opening through which the other end of the fuel rod can be guided.

[0027] A slot as a bearing element in combination with a flattened portion at the end of a round fuel rod, whereby the flattened portion is pushed through the slot, also has the advantage that the fuel rod can thus be secured against twisting about its longitudinal axis. The dimensions of the flattened portion and the slot are selected accordingly so that the flattened portion can rotate as little as possible, or even not at all, within the slot about the longitudinal axis of the fuel rod. However, such anti-twist protection in a bearing element can also be designed in other ways. For example, the fuel rod could have a completely or at least partially polygonal cross-section, which is secured against twisting about its longitudinal axis in a correspondingly designed opening in the support frame.Preferably, an anti-twist device can be created between the heating device and the support frame in at least one bearing element, which, however, can also be released again by simple pulling and / or turning movements.

[0028] In order to be able to install a heating device despite different types of locking elements, the installation of the heating device is preferably integrated as a step in the assembly of the grill device. At which construction steps this advantageously occurs depends essentially on the design of the support frame and the plug connections used to connect the individual parts. In one embodiment of the invention, the support frame is formed by at least four side walls standing at right angles to one another, which are connected to one another with detachable plug connections. Various types of plug connections can be used here, whereby all plug connections can be of the same type. Different types of plug connections can also be combined.

[0029] It has proven advantageous if at least the detachable plug-in connections for the side walls are each formed by hook tabs which can be interlocked with a corresponding insertion slot by a movement in the direction of the edges of the side walls to be connected. If, for example, two vertical side walls are to be connected to one another via their edges, hook-shaped hook tabs with opposing insertion slots are located on these edges. The hook tab and insertion slot are inserted into one another by a movement in the direction of the edges and thus hooked together. The hook tabs can also be released from the insertion slots again in the same way. In one embodiment of the invention, two opposite side walls each have two downward-facing hook tabs which can be inserted from above into insertion slots on the other two side walls.

[0030] Preferably, such hook tabs and insertion slots are only located on the upper edges of the side walls, while the side walls in the lower area are connected to one another by other types of plug-in connections. For example, there is a base section below the heating device that is attached to the four side walls by detachable plug-in connections. Simpler connections are preferably chosen for these plug-in connections. In particular, each one consists of a hook tab that is hooked into a simple slot in a side wall. It can also be a simple tab that is pushed into a slot. This combination of different plug-in connections makes it possible to assemble the grill device according to a specific construction pattern without the walls or hook tabs having to be joined under pressure or even bent.The installation of the heating device can also be integrated into this construction scheme. When assembled, the result is an extremely stable and torsion-resistant grill.

[0031] A base section is preferably designed as an angled sheet metal to create a concave draining surface on which material dripping down from above can collect. To improve the gas grill function of the grill device according to the invention, a flame cover can also be inserted between the heating device and the grill grate. This flame cover is also preferably attached to the support frame by detachable plug-in connections, whereby its attachment can also contribute to the torsional rigidity of the grill device. The flame cover is preferably formed by a roof-shaped sheet metal that runs above the heating device between the two walls with the bearing elements. The flame cover has several recesses through which flames can pass. This allows the heat to be better distributed to the food being grilled on the grill grate.

[0032] Furthermore, in one embodiment it can be provided that the side walls form feet. This can be achieved by providing at least one indentation on the underside of at least two side walls. Feet are formed next to this indentation so that the grill does not rest on a floor with long, continuous edges, but rather with at least four feet with shorter edges. This increases the stability of the grill on uneven ground. This can be supplemented by another indentation in each of the feet. This way the grill can be placed on two transversely arranged branches with these second indentations. This also increases the stability of the grill, and branches are easy to find and therefore do not have to be carried along.The grill can also be placed on a flat transport bag in which the components of the grill can be transported in a flat stack.

[0033] Further advantages, special features and expedient developments of the invention emerge from the subclaims and the following representation of preferred embodiments with reference to the figures.

[0034] From the illustrations shows: Fig. 1 an embodiment of a grill device according to the invention in a perspective view, Fig. 2 the grill device according to Fig. 1 in an exploded view, Fig. 3 a first side view of the grill device, Fig. 4 a second side view of the grill device, Fig. 5 a longitudinal view of the grill device, Fig. 6 a top view of a grill device, and Fig. 7 an assembly step when attaching a heating device.

[0035] The figures show an embodiment of a grill device 10 according to the invention, which is particularly suitable for outdoor activities, such as hiking tours or camping. The grill device 10 shown in the present exemplary embodiment comprises a support frame and a grill grate 20 attached to the support frame. The support frame is formed by several plate-shaped walls, in particular by four side walls 11, 12, 13 and 14. Overall, a cuboid-shaped support frame is thus formed with an upper opening into which the grill grate 20 is inserted. Two shorter side walls 11 and 12 are connected to one another via two longer side walls 13 and 14. This shape with two shorter and two longer side walls is not to be understood as limiting, but the description also applies to shapes with side walls of equal length or other aspect ratios.

[0036] The underside of the grill device 10 is closed by a base part 15, which is connected to all side walls 11, 12 and 13, 14. The base part 15 is also plate-shaped, but has an angled portion, resulting in a concave groove that runs between the two shorter side walls 11 and 12. The base part 15 thus forms a drip channel, which is preferably closed.

[0037] The grill device 10 further comprises a heating device 30 that is operated with a combustible gas. In this embodiment, the heating device 30 is designed as a fuel rod with a round cross-section, which has a plurality of outlet openings for the outflow of combustible gas, one of which is provided with the reference number 34. These outlet openings 34 are arranged spaced from one another in a row along the length of the fuel rod 30, wherein several rows of these can be provided. However, the heating device 30 can also have a different shape. For example, it can also be designed as a cuboid or flat plate with a plurality of outlet openings for the outflow of gas.

[0038] The heating device 30 runs between the two shorter side walls 11 and 12 and is held therein in respective bearing elements. These bearing elements are formed by openings in the short side walls 11 and 12. One opening in the side wall 11 is formed by a slot 50, while an opening in the opposite side wall 12 is formed by a circular recess 51. The tube of the fuel rod 30 has a flattened portion 32 at one end, with which it is pushed into the slot 50. The flattened portion 32 is introduced, for example, by a pinch weld or a weld, with which the tube of the fuel rod is sealed gas-tight at this end. The other end of the fuel rod 30 is pushed into the circular recess 51.At this end of the fuel rod 30 is also the connection for a storage container with combustible gas in liquid form, so that at this end there is a gas inlet opening 31 through which gas can flow into the fuel rod 30 and then escape through the outlet openings 34. The end with the flattened portion 32, however, is designed to be gas-tight.

[0039] The gas inlet opening 31 and thus the connection for a storage container with gas in liquid form is located in the assembled state on the outside of the support frame formed by the side walls, ie on the outside of the side wall 12. This is particularly the view of the Fig. 1. The fuel rod 30 thus protrudes beyond the side wall 12 by a certain length.

[0040] A roof-shaped flame cover 40 is arranged above the heating device 30. The flame cover is designed in a manner familiar from conventional gas grills. In particular, it has several flame openings 41 arranged spaced apart from one another in two lateral rows.

[0041] The two longer side walls 13 and 14 each have a central recess on their lower edges, through which two feet 16, 17 and 18, 19 are formed. Additionally, a further, smaller recess is formed in the lower edges of these feet 16, 17, 18, 19. These recesses allow the grill to be placed optionally on crosswise laid branches, as shown in the Fig. 1 is shown in dashed lines.

[0042] These various individual parts of the grill device are connected to one another by several detachable plug-in connections. The four side walls 11, 12, 13, and 14 are connected to one another at their vertical edges via plug-in connections created by hook-shaped tabs and insertion slots. These tabs are also referred to below as hook tabs because they protrude from the side walls like hooks. For example, side wall 11 has a hook tab 70 and 71 on each of its lateral edges, while the opposite side wall 12 has two hook tabs 72 and 73 on its lateral edges. These hook tabs are located in the upper area of ​​the side walls 11, 12 so that they can be inserted from above into corresponding slots in the other two side walls 13 and 14. Side wall 13 has two such insertion slots 91, 92, while the opposite side wall 14 has two insertion slots 93, 94.

[0043] The base part 15 is connected to the side walls 11, 13, and 14 by additional plug connections. In the illustrated embodiment, there is no plug connection to the side wall 12, since this side wall 12 is preferably mounted last and an additional plug connection in this area would make it difficult to insert the hook tabs 7, 73 from above into the insertion slots 92, 94.

[0044] The base part 15 has four tabs 80, 81, 82, and 83, which can be inserted into corresponding slots 60, 61, 62, 63 in the side walls 13 and 14. These tabs 80, 81, 82, 83 are also hook-shaped, with the hooks protruding towards the side wall 11. When the tabs 80, 81, 82, 83 are inserted into the slots 60, 61, 62, 63, the base part 15 is therefore slightly pressed towards the side wall 11 to create a hooking connection. On a side of the base part 15 facing the side wall 11, two further tabs 84 and 85 protrude. These are formed by simple bulges without a hook function. They are therefore simply inserted into corresponding slots 64 and 65 in the side wall 11 without becoming caught. The tabs 84 and 85 simply rest in the slots 64 and 65, so that these slots 64, 65 can also be referred to as support slots.

[0045] Additional support slots 66, 67, 68, and 69 are provided in the side wall 11 and the side wall 12 to hold the flame cover 40. For this purpose, the flame cover 40 has two simple tabs 42, 43 and 44, 45 at each of its ends, which are inserted into the support slots 66, 67, 68, and 69 without interlocking. Due to the angled roof shape of the flame cover 40, the tabs 42, 43, 44, 45 and thus the support slots 66, 67, 68, 69 are inclined.

[0046] The grill grate 20 is also connected to the four side walls 11, 12, 13, and 14 via tabs and receptacles. For this purpose, the grill grate 20 has four support teeth 21, 22, 23, and 24 protruding from the sides. These can be inserted from above into correspondingly shaped receptacles on the side walls, which are open at the top. These receptacles 26, 27, 28, and 29 are located, for example, on the upper edges of the longer side walls 13 and 14, and their cross-section widens towards the top. In addition, another protruding plug-in tooth 25 is formed on the grill grate 20, which is inserted into another support slot 90 on the side wall 12.

[0047] In the Fig. 1, the grilling device 10 is fully assembled and can be used for grilling food on the grill grate 20. For this purpose, a storage container with combustible gas in liquid form is connected to the fuel rod 30, which may in particular also include the attachment of pressure regulators, pressure valves, hoses, etc. The grilling device 10 is stable, very torsionally rigid, and safe to handle. In particular, the fuel rod 30 is secured against movement within the openings 50 and 51, as can be seen from the Fig. 7 will be described.

[0048] In order to assemble the grill device 10 from its various individual parts into the state of Fig. 1, a predetermined assembly diagram is preferably followed. In particular, the two longer side walls 13 and 14 are first connected to the shorter side wall 11 via the described plug connections. The two side walls 13, 14 are slightly spread apart in order to connect the base part to the three side walls 11, 13, 14 via the also described plug connections. Furthermore, the end of the fuel rod 30 with the gas inlet opening 31 is pushed from the inside through the opening 51 in the side wall 12. In this state, the other end of the fuel rod 30 with the flattened portion 32 is pushed through the slot 50 in the side wall 11. For this purpose, the fuel rod 30 is tilted slightly upwards about the longitudinal axis of the slot 50 in order to be able to push a highly angled fastening section 33 on the flattened portion 32 through the slot 50. This process is indicated by an arrow in Fig. 7. Since the fuel rod 30 is inserted into the round opening 51 with some play, the side wall 12 can be tilted slightly outwards in order to push the flame cover 40 with its tabs 42, 43, 44, 45 into the support slots 66, 67, 68, 69. The side wall 12 is pressed towards the opposite side wall 11 in order to be able to hold the flame cover 40 between the two side walls 11, 12. In this state, the side wall 12 can be lowered downward in order to insert the hook tabs 72 and 73 from above into the insertion slots 92 and 94 of the two side walls 13, 14. The grill grate 20 is then inserted diagonally with its plug-in tooth 25 into the slot 90 and lowered. The support teeth 21, 22, 23, 24 can be deposited in the receptacles 26, 27, 28, 29. As can be seen particularly from the side view of the Fig. 5, the support teeth 21, 22, 23 and 24 each engage with a projection in the lower area of ​​a side wall of the respective receptacle 26, 27, 28, 29 when the grill grate 20 is pushed in with its plug-in tooth 25 in the direction of the slot 90. This means that the grill grate 20 can no longer be easily lifted upwards out of the receptacles 26, 27, 28, 29. To do so, the grill grate 20 must first be pulled out of the slot 90 with its plug-in tooth 25 in order to release the engagement with the projection of a respective receptacle. Furthermore, a recess can be provided at the bottom of a receptacle 26, 27, 28, 29, into which a support tooth 21, 22, 23 and 24 lowers under a projection when pushed in (see, for example, right-hand receptacle 27 in Fig. 5). The grill grate 20 is thus secured against horizontal movement and, with the appropriate weight of the grill grate 20, is held in the recess by gravity. This securing mechanism is released when the grill grate 20 is lifted out of the slot 90 and the receptacles 26, 27, 28, 29 with a pulling and tilting movement.

[0049] In this final state, the fuel rod 30 is secured against movement between the two openings 50, 51, since at least one locking element, but preferably two locking elements, act on the slot 50 (see Fig. 7). A first locking element is formed by the fastening section 33, which protrudes at an angle α from the longitudinal axis of the fuel rod 30. Here, it protrudes upwards and has a height H in this direction that is greater than the height h of the slot 50. The fastening section 33 lies on the outer side of the side wall 11 and, through positive locking, prevents movement of the fuel rod 30 towards the opposite side wall 12, since the fastening section does not fit through the slot 50 in this position. The fuel rod 30 cannot therefore be inadvertently pulled out of the grilling device through the opening 51. If, for example, a hose and / or the storage container for the combustible gas is inadvertently pulled, this does not lead to a dangerous situation in which a fuel rod 30 is pulled outwards with flames. Rather, the fuel rod 30 is always protected and safely housed inside the grilling device.

[0050] However, an additional locking element also prevents the fuel rod 30 from being pushed too far through the grilling device. For this purpose, a widened projection 35 is provided on the end flattened portion 32 of the fuel rod 30. This projection 35 has a width B that is greater than the width b of the slot 50 in the side wall 11. The projection 35 thus abuts the inside of the side wall 11 when the fuel rod 30 is pushed in this direction. The flattened portion 32 in the slot 50 also provides anti-twist protection.

[0051] These locking elements 33, 35 secure the fuel rod 30 in the grilling device 10. However, this locking mechanism can be released by simple pulling and / or twisting movements when the grilling device is disassembled. The previously described assembly steps are carried out in reverse order, with the side wall 12 first being pulled upwards out of the insertion slots 92, 94, etc. The fuel rod 30 is released from the slot 50 by an upward pulling / tilting movement of the fuel rod 30. Subsequently, all other plug-in connections can be released and the fuel rod can also be removed from the side wall 12. Finally, the entire grilling device is available in several flat individual parts that can be stacked on top of one another, preferably for transport in a bag or backpack.

[0052] As for example from the Fig.As can be seen in Figure 3, there is an opening in the area of ​​the slot 50. Through this opening, the heating device can be ignited with a flame or spark source. List of reference symbols: 10 Grill device 11,12,13,14 side wall 15 Base part 16,17,18,19 Stand 20 Grill grate 21,22,23,24 support tooth 25 cane teeth 26,27,28,29 Recording 30 Heating device, fuel rod 31 Gas inlet opening 32 Flattening 33 Fastening section 34 Exit opening 35 lead 40 Flame cover 41 Flame opening 42,43,44,45 tab 50,51 Bearing element, opening 60,61,62,63 slot 64,65,66,67,68,69 support slot 70,71,72,73 hook tab 80,81,82,83,84,85 tab 90 Grate lock, slot 91,92,93,94 insertion slot QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CH 709799 A2

[0002]

Claims

[1] A collapsible grilling device (10), comprising a support frame and a grilling grate (20) held by the support frame, wherein the support frame is formed from a plurality of plate-shaped walls (11; 12; 13; 14; 15), of which at least four side walls (11; 12; 13; 14) are at right angles to one another, which are connected to one another by detachable plug-in connections, and the grilling device (10) can be transferred into a transport and storage state by detaching these plug-in connections, in which the plate-shaped walls (11; 12; 13; 14; 15) and the grilling grate (20) are placed one on top of the other to form a flat stack, and the support frame has at least two opposite bearing elements (50; 51) in which a heating device (30) operated with a combustible gas is detachably held, characterized bythat the heating device (30) is designed as a tubular fuel rod with a plurality of outlet openings (34) for the outflow of combustible gas, the tubular fuel rod having at one end a connection for a storage container with combustible gas in the liquid state, while the opposite end of the fuel rod is closed in a gas-tight manner and has a flattened area (32), that the bearing elements (50; 51) are each formed by an opening in the support frame, into which opening a section of the fuel rod is inserted with play, and a movement of the fuel rod in the direction between the two bearing elements (50; 51) is prevented by at least one blocking element (33;35) is limited on the fuel rod, wherein an opening of a first bearing element (50) is formed by a slot through which the flattened portion (32) of the fuel rod is pushed, and an outer locking element (33) lies on the outside of the support frame and an inner locking element lies on the inside of the support frame, that the detachable plug-in connections are each formed by hook tabs (70; 71; 72; 73) which can be interlocked with corresponding insertion slots (91; 92; 93; 94) by a movement in the direction of the edges of the side walls (11; 12; 13; 14) to be connected, and that between the heating device (30) and the grill grate (20) a flame cover (40) formed by a roof-shaped sheet metal and running between the walls (11; 12) with the bearing elements (50; 51) is attached to the support frame by detachable plug-in connections. [2] Grilling device according to claim 1, characterized bythat the connection for a storage container with flammable gas is located on the outside of the support frame. [3] Grilling device according to one of the preceding claims, characterized by that a blocking element is formed by a fastening section (33) which projects from the heating device (30) at an angle α to the longitudinal axis thereof and has a height H in this direction which is greater than the height h of the opening of a bearing element (50). [4] Grilling device according to one of the preceding claims, characterized by that a locking element is formed by a widened projection (35) whose width B is greater than the width b of the opening of a bearing element (50). [5] Grilling device according to one of the preceding claims, characterized by that an indentation is provided on the underside of at least two side walls (13; 14). [6] Grilling device according to one of the preceding claims, characterized by that below the heating device (30) a base part (15) is attached to the support frame by means of detachable plug connections.

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