CH717938A2 - Camping stove and cooking system. - Google Patents

Abstract

A camping stove (1) has a housing (10) in which a first burner (11), a second burner (12) and a gas pressure reducer (24) are arranged. The burners are spaced apart and lie in a common plane so that two-flame operation is possible. A first control valve (15) and a second control valve (16) serve to regulate the burner output independently. The control valves (15, 16) have fold-out brackets (15a, 16a) for easier operability. A completely circumferential elevation (17) of the housing (10) around the burners (11, 12) is provided as a windbreak. Since the housing (10) is designed in two parts, cooling air can circulate between a lower housing part and the draft shield (17). Arranged in each of the four corners of the housing (10) are wire brackets as a combined stand/pot support device (13, 14) which can be folded in and out from a transport position into an operating position. This means that the camping stove (1) can be transported in a space-saving manner and, on the other hand, safer operation is ensured thanks to the camping stove (1) being in a better position and the risk of the cookware falling down being reduced.

Description

field of invention

The invention relates to a camping stove and a cooking system comprising such a camping stove.

background

Conventional camping stoves with two burners are often quite heavy and / or bulky, making their transport and use in mobile situations, especially hiking, mountaineering, rock climbing, white water kayaking, bivouac paragliding, etc. difficult or impossible.

[0003] In addition, the adjustability of the burner outputs is often not fine enough to enable the simmering of meals (e.g. risotto for dinner) in addition to the strong (re)boiling of liquids (e.g. for tea water).

Presentation of the invention

It is therefore an object of the invention to provide a camping stove and a cooking system which do not have the disadvantages of the prior art or at least partially avoid them.

[0005] This object is achieved by the camping stove or the cooking system with the features of the independent patent claims.

Accordingly, a camping stove (e.g. for gas and/or petrol operation) comprises a one-part or multi-part housing (preferably made of light but stable metal such as e.g. aluminum, titanium and/or stainless steel) and a first and a second burner, which are or are arranged in the housing at a distance from one another (preferably in the range from 20 to 30 cm), preferably in a common plane. By providing two burners, a meal can also be prepared for a group of people or a meal can be prepared on the first burner (e.g. simmering risotto) while tea water is boiled on the second burner, which improves the range of uses of the camping stove. A first regulating valve of the camping stove is used to regulate a burner output of the first burner. Furthermore, the camping stove includes a second regulating valve for regulating a burner output of the second burner. Thus, the heat output of the first and second burner can be finely and independently regulated and both burners are suitable for both boiling and simmering. This improves the applicability of the camping stove. The camping stove also includes a stand on and/or in the housing for placing the camping stove on a surface, e.g. This ensures a safer stand, which increases operational safety. In addition, the camping stove includes a pot support device on and/or in the housing for placing or otherwise attaching cookware (e.g. a pot or a pan) on/to the camping stove. This makes it more difficult for the cookware to fall or slip and increases operational safety.

The standing device can preferably be reversibly transferred from a transport position to an operating position, e.g. by folding it in and out. A locking element can be provided for fixing in the transport position. The outer dimensions of the camping stove in the transport position are preferably smaller, at least in one dimension, than the outer dimensions of the camping stove in the operating position. This makes it easier to store and transport the camping stove (e.g. in a backpack). The standing device is designed in such a way that when the camping stove is parked on the surface and at least when the standing device is in the operating position, there is a first distance d1 between an underside of the housing (i.e. the side of the housing which faces the storage surface when the camping stove is operated as intended shows) and the surface results, in the sense of a "ground clearance". This first distance d1 is preferably at least 2.5 cm. Thus, on the one hand, thermal insulation is guaranteed and the surface cannot burn so easily, on the other hand, the camping stove can also be used more safely on uneven surfaces, which increases its applicability.

Preferably, the pot support device can also be reversibly transferred from a transport position to an operating position, e.g. by folding it in and out. A locking element can be provided for fixing in the transport position. The outer dimensions of the camping stove in the transport position are preferably smaller, at least in one dimension, than the outer dimensions of the camping stove in the operating position. This makes it easier to store and transport the camping stove (e.g. in a backpack). The pot support device is designed in such a way that, at least in the operating position of the pot support device, there is a second distance d2 between a cookware base (i.e. an underside of the cookware that points towards the burners during normal operation) of the cookware that can be placed on the pot support device and the first and/or the second burner results. Preferably, the second distance d2 is substantially (i.e. +/- 15%) identical for the first and second burners. The second distance d2 is preferably in the range of 15 to 30 mm. This ensures good heat transfer from the burners to the cookware.

In the camping stove according to the invention, in particular according to the above-described embodiments with a stand device and pot support device that can be reversibly transferred between transport and operating positions, the stand device and at least a part of the pot support device are preferably formed by a one-piece material part. In other words, the standing and transport devices are designed in such a way that the one-piece piece of material acts/functions both as a standing device (e.g. in its lower area by the storage surface) and as a pot support device (in its upper area by the burners) and a combined standing / Pot support device is formed. In particular, several, preferably four (e.g. one in each corner of the housing), one-piece material parts can be provided as a combined stand/pot support device, in which case the one-piece material parts function in their lower area as a stand device and in their upper area as at least part of the pot support device. In this way, the weight and pack size can be improved, which makes it easier to transport the camping stove. In addition, a more secure footing is guaranteed and slipping of the cookware is made more difficult, which increases operational safety.

In a preferred embodiment, the stand device and/or the pot support device, preferably the combined stand/pot support device described above, comprises at least one, in particular several, preferably four (e.g. one in each corner of the housing) bent metal parts, e.g. wire brackets. The diameter of the bent metal parts is in particular in the range from 3 to 5 mm. The bent metal parts can be made from a stainless steel wire. In this way, weight and pack size can be saved, which is beneficial to the portability of the camping stove. In addition, a more secure footing is guaranteed and slipping of the cookware is made more difficult, which increases operational safety.

The pot support device of the camping stove then preferably has one or more support devices on or in the housing in addition to the one-piece material part(s) described above. In addition to the pot support device already described (or possibly the combined stand/pot support device), these also serve to place the cookware on the camping stove, e.g. as a third support point for each cookware between the burners next to the four one-piece pieces of material in the corners of the housing. In particular, this support device is arranged between the first and the second burner and is preferably also formed from a one-piece piece of material (e.g. a bent piece of metal such as a U-shaped stainless steel wire). In particular, the support devices are designed in such a way that they do not serve as part of the standing device but only as part of the pot support device. In this way, weight and pack size can be saved, which is beneficial to the portability of the camping stove. In addition, slipping of the cookware is made more difficult, which increases operational safety.

In another preferred embodiment, the camping stove further comprises a windbreak to protect a flame of the first and/or the second burner (in particular both flames) from being blown out by the wind. The draft shield is preferably designed as a partially or in particular completely circumferential elevation of the housing, e.g. with a height of 0.5 to 1.5 cm above and perpendicular to the level of the two burners. This increases operational safety, since the flames cannot be blown out so easily when the wind blows in from the side, which means that unburned fuel escapes from the burners.

In a further preferred embodiment, the camping stove also includes a connecting hose for connecting the camping stove to a fuel supply, in particular to a gas cartridge. During transport, the connection hose can preferably be stowed in whole or in part in or on the camping stove, e.g. in a recess in the housing, which is preferably provided on the underside or rear of the housing. The fuel supply preferably supplies both burners together, so that only one fuel supply needs to be taken along for two-flame operation. These refinements increase the portability of the camping stove.

The camping stove then preferably also includes a pressure regulator, e.g. a (gas) pressure reducer, which is preferably arranged in or on the housing. This enables the camping stove to be connected to a large number of gas cartridges, e.g. from different manufacturers, which in turn can be supplied with or without their own pressure regulator. This allows the camping stove to be used in a variety of situations, as compatibility and operational reliability are increased. Such a pressure regulator increases operational safety because it produces a more even flame pattern, independent of e.g. the outside temperature, the (decreasing) temperature of the gas cartridge and the altitude-dependent ambient air pressure.

In a further preferred embodiment, the first control valve and/or the second control valve (preferably both control valves) each have a handle unit, e.g facilitated. Preferably, the handle units can each be reversibly transferred from a transport position to an operating position, e.g. folded out and in again. A locking element can be provided for fixing in the transport position. The outer dimensions of the camping stove in the transport position are preferably smaller, at least in one dimension, than the outer dimensions of the camping stove in the operating position. This makes it easier to store and transport the camping stove (e.g. in a backpack).

A first overhang d3 of the handle unit over a front surface of the housing in the transport position is in particular not more than 5 mm. Preferably, a protrusion of any latching elements is greater than the first protrusion d3 of the handle unit in the transport position, so that the regulating valve is protected from impacts and other loads during transport (ie when the handle element is folded in).

Additionally or alternatively, a second overhang d4 of the handle unit over the front surface of the housing in the operative position is between 3 and 5 cm. This ensures good adjustability on the one hand, e.g. even with gloves, and on the other hand the camping stove can be transported more easily.

In a further preferred embodiment, the camping stove has a total weight of less than 900 g (without fuel supply). In this way, the portability of the camping stove can be increased.

In another preferred embodiment, the housing of the camping stove is designed in several parts, e.g. in particular the wind protection described above can be constructed as a separate part from the rest of the housing. This allows cooling air to circulate between the individual housing parts, which is helpful for combustion on the one hand and ensures that the housing is heated less on the other. Cooling ribs, cooling air slots and insulating devices can be provided in, on and/or between individual housing parts for the same purpose.

Another aspect of the invention relates to a cooking system comprising a camping stove as described above and a fuel supply, in particular a gas cartridge or a petrol bottle, which can be connected to the camping stove by means of a connecting hose. This is used to supply the first and second burner of the camping stove with fuel, so that only one fuel supply has to be taken with you, even in two-burner operation. This increases the portability of the cooking system. Any pressure regulator is arranged in particular in or on the camping stove, so that the fuel supply does not require one.

Brief description of the drawings

Further advantageous refinements of the invention result from the dependent patent claims and the exemplary embodiments illustrated below with reference to the drawings. 1 shows a camping stove 1 according to the invention with a combined stand/pot support device 13, 14 which is held in place by wire brackets 13a, 14a; 13b, 14b; 13c, 14c and 13d, 14d are formed, in an operating position, Fig. 2 shows the camping stove 1 from Fig. 1 with the combined stand/pot support device 13, 14 in a transport position, Fig. 3 shows an enlarged view of a first and a second regulating valve 15, 16 of the camping stove from Fig. 1 with handle units 15a and 16a in a transport position, Fig. 4 shows the enlarged view from Fig. 3 with the handle units 15a and 16a in an operating position, Fig. 5 shows the end of a gas connection hose of the camping stove 1 from Fig. 1, Fig. 6 shows a gas cartridge 40 as a fuel supply 40 for the camping stove from Fig. 1 together with the gas connection hose 18 from Fig. 5, Fig. 7 shows a cooking system 50 with the camping stove 1 from Fig. 1, the gas cartridge 40 from Fig. 6 and a pan 30 as a cooking utensil over the second burner 12 of the camping stove 1, Fig. 8 shows the camping stove 1 from Fig. 1 in a schematic view from above, in welc 9 shows a schematic section through the camping stove 1 along the plane A-A from FIG housing 10.

Way(s) for carrying out the invention

1 shows a gas camping stove 1 according to the invention with a housing 10 consisting of several parts. At the top 22 of the housing, a first burner 11 and a second burner 12 are arranged at a distance from one another. The burners are arranged in a common plane. This enables two-flame operation, e.g. to boil water for tea while preparing a meal at the same time. A draft shield 17 is designed as a peripheral elevation of the housing and protrudes approximately 1 cm above this level of the burner. The draft shield 17 is designed as a separate housing part. This windbreak 17 prevents the flames of the burners 11, 12 from being blown out easily and unburned fuel from escaping. Thus, the operational safety is increased. A first regulating valve 15 serves to regulate a burner output of the first burner 11, a second regulating valve 16 independently of this to regulate a burner output of the second burner 12. The regulating valves 15, 16 are designed in such a way that, in the transport position shown, they can be locked in place in the latching elements 15b, 16b latched handle units 15a, 16a (latchable brackets, see also Fig. 3 and 4) are not completely closed, so that the internal O-rings of the valves (not shown) are not compressed and the internal needles of the valves (also not shown) are less likely to get stuck when the camping stove cools down.

Near the (viewed from above) rounded corners of the housing 10 are four one-piece wire brackets 13a, 14a; 13b, 14b; 13c, 14c and 13d, 14d, which form a combined stand/pot support device 13, 14. The lower areas of the wire brackets 13a, 13b, 13c and 13d act as a standing device in that the camping stove 1 can be placed on them, e.g. on a stone slab (see Fig. 7). This ensures a safer stand and increases operational safety. The upper areas 14a, 14b, 14c and 14d of the wire brackets serve as a pot support device on which a cooking utensil 30 can be placed (see FIG. 7). In order to reduce the risk of the cookware tipping over or slipping, another one-piece wire bracket 14e, 14f is provided between the burners 11, 12, which as a support device has a third support point near 14e for a cookware above the first burner 11 or a third support point in near 14f for a cookware above the second burner 12. This support device 14e, 14f forms part of the pot support device 14, but not part of the standing device 13.

The four one-piece wire brackets 13a, 14a; 13b, 14b; 13c, 14c and 13d, 14d are shown folded down in Fig. 1, i.e. in an operating position of the camping stove 1 or the combined stand/pot support device 13, 14. Safer operation is possible in this position, since the camping stove 1 stands better and the cookware is less likely to slip. The design of the combined stand/pot support device 13, 14 according to the invention also allows the camping stove 1 to be constructed relatively lightly, with a total weight of only approx. 850 g. This increases the portability of the camping stove 1. The camping stove 1 can be loaded with up to approx. 4 kg (cookware with contents) on each side (i.e. over each of the burners 11, 12), i.e. a total of up to 8 kg.

2 shows the camping stove 1 from FIG. 1 with the combined stand/pot support device 13, 14 or the wire brackets 13a, 14a forming this; 13b, 14b; 13c, 14c and 13d, 14d in a folded state, i.e. in a transport position of the camping stove 1 or the combined stand/pot support device 13, 14. By folding the operating position can thus be reversibly converted into the transport position, by folding the Transport position reversibly transferred to the operating position. The outer dimensions of the camping stove in the transport position are smaller (at least in width and depth) than the outer dimensions of the camping stove in the operating position. This makes it easier to store and transport the camping stove (e.g. in a backpack). For fixing in the transport position, the wire brackets 13a, 14a; 13b, 14b; 13c, 14c and 13d, 14d snapped into the latching elements 15b, 16b, 25b, 26b in the folded state, so that unintentional folding is prevented (see also FIG. 8).

3 shows an enlarged view of the front surface 21 of the housing 10 with the first and second control valve 15, 16 of the camping stove from FIG. 1. The handle units/bars 15a, 16a are in the locked state in the transport position shown in the locking elements 15b, 16b. A first front overhang d3 of the regulating valves 15, 16 including handle units 15a, 16a above the front surface 21 is approximately 3 mm in this transport position. The latching elements 15b, 16b protrude further than the handle units/bars 15a, 16a of the regulating valves 15, 16 in the transport position. This protects the regulating valves 15, 16 from impacts and other loads during transport of the camping stove 1, which improves their durability.

Figure 4 shows the enlarged view of Figure 3 with the handle units/yokes 15a, 16a shown in an operative position, i.e. in the unlatched condition. The control valves 15, 16 can thus be actuated more easily, e.g. even with thick gloves. Here, a second overhang d4 of the regulating valves 15, 16 including the handle units 15a, 16a above the front surface 21 is approximately 4 cm.

The reversible transferability of the handle units 15a, 16a from the transport position to the operating position thus ensures good adjustability of the camping stove 1, e.g. even with gloves, on the one hand, and on the other hand the camping stove 1 can be transported more easily.

5 shows the end of a gas connection hose 18 of the camping stove 1 from FIG. 1, which can be completely stowed in a recess 23 (see FIGS. 8 and 9) of the housing 10 on the underside 20 thereof. This connection hose is used to connect the camping stove 1 to a gas cartridge 40 as a fuel supply. The first burner 11 and the second burner 12 are supplied with fuel by a common gas cartridge 40, so that only one gas cartridge has to be taken along even in the case of two-flame operation. This increases the portability of the camping stove 1.

6 shows a gas cartridge 40 as a fuel supply for the camping stove from FIG. 1 together with the gas connection hose 18 from FIG after the gas connection hose, so that the camping stove 1 can be connected to gas cartridges with or without their own pressure reducer.

7 shows a cooking system 50 with the camping stove 1 from FIG. 1, the gas cartridge 40 from FIG. 6 and a pan/pot 30 as cookware over the second burner 12 of the camping stove 1. A first distance is here d1 between the bottom 20 of the housing 10 and the stone slab 100 as a storage surface about 3 cm. This ensures a stable stand. A second distance d2 between a cookware base 31 of the pot 30 placed on the pot support device 14 and the second burner 12 is approximately 2 cm. This enables good heat transfer with a safer flame.

8 shows the camping stove 1 from FIG. 1 in a schematic view from above, in which the recess 23 and the pressure reducer 24 on the underside 20 can be seen (both shown in dashed lines). Here the one-piece wire brackets 13a, 14a and 13d, 14d are in the operating position and the one-piece wire brackets 13b, 14b and 13c, 14c are in the transport position and are engaged in the latching elements 16b and 25b. The latching element 16b also serves to fix the handle unit 16a of the second regulating valve 16 in its transport position.

Finally, FIG. 9 shows a schematic section through the camping stove 1 along the plane A-A from FIG. 8. In addition to the recess 23 on the underside 20 of the housing 10, the pressure reducer 24 can also be seen. Since the windshield 17 is constructed as a separate part from the rest of the housing 10 and slots are provided between the windshield 17 and the rest of the housing in the area of the burners 11, 12, cooling air which flows into the housing 10 from below (not shown) can flow between the Windscreen 17 and the rest of the housing 10 flow upwards (thick arrows), which contributes to the fact that the housing 10 is not heated as much. Better combustion is also guaranteed.

Description of a preferred embodiment

A camping stove 1 has a housing 10 in which a first burner 11, a second burner 12 and a gas pressure reducer 24 are arranged. The burners are spaced apart and lie in a common plane, so that two-flame operation is possible. A first control valve 15 and a second control valve 16 are used for independent control of the burner output. The control valves 15, 16 have fold-out brackets 15a, 16a for easier operability. A completely circumferential elevation 17 of the housing 10 around the burners 11, 12 is provided as a windbreak. Since the housing 10 is designed in two parts, cooling air can circulate between a lower housing part and the windshield 17 . In each of the four corners of the housing 10 there are wire brackets as a combined stand/pot support device 13, 14, which can be reversibly folded or folded from a transport position into an operating position. In this way, the camping stove 1 can be transported in a space-saving manner and, on the other hand, safer operation is ensured because the camping stove 1 is in a better position and there is a reduced risk of the cooking utensil 30 falling down.

While the present application describes preferred embodiments of the invention, it should be clearly understood that the invention is not limited thereto and may be otherwise embodied within the scope of the claims below. It is obvious to the person skilled in the art that the described features of the individual embodiments are not limited to these, but can be combined as desired without deviating from the inventive idea.

Claims (14)

1. A camping stove (1) comprising - a housing (10), - a first burner (11) on or in the housing (10), - a first regulating valve (15) for regulating a burner capacity of the first burner (11), - a second burner (12) on or in the housing (10) and at a distance from the first burner (11), - a second regulating valve (16) for regulating a burner capacity of the second burner (16), - A stand (13; 13a, 13b, 13c, 13d) on the housing (10) for placing the camping stove (1) on a surface (100), and - A pot support device (14; 14a, 14b, 14c, 14d, 14e, 14f) on the housing (10) for placing cookware (30) on the camping stove (1). 2. The camping stove (1) according to claim 1, wherein the standing device (13; 13a, 13b, 13c, 13d) can be reversibly transferred from a transport position into an operating position, designed in such a way that when the camping stove (1) is parked on the surface ( 100) in the operating position of the standing device (13; 13a, 13b, 13c, 13d) there is a first distance (d1) between an underside (20) of the housing (10) and the surface (100), the first distance (d1) preferably at least 2.5 cm. 3. The camping stove (1) according to one of the preceding claims, wherein the pot support device (14; 14a, 14b, 14c, 14d, 14e, 14f) can be reversibly transferred from a transport position to an operating position, designed such that in the operating position a second distance (d2) between a cookware base (31) of the cookware (30) that can be placed on the pot support device (14; 14a, 14b, 14c, 14d, 14e, 14f) and the first and/or the second burner (11, 12), wherein the second distance (d2) is preferably in the range of 15 to 30 mm. 4. The camping stove (1) according to one of the preceding claims, in particular according to claims 2 and 3, wherein the standing device (13; 13a, 13b, 13c, 13d) and at least part of the pot support device (14; 14a, 14b, 14c, 14d, 14e, 14f) are formed by a one-piece material part, in particular by several, preferably four, one-piece material parts (13a, 14a; 13b, 14b; 13c, 14c; 13d, 14d), designed in such a way that the one-piece material part or parts act as a standing device (13; 13a, 13b, 13c, 13d) in their lower area and as at least part of the pot support device (14; 14a, 14b, 14c, 14d, 14e, 14f) in their upper area. 5. The camping stove (1) according to one of the preceding claims, wherein the stand device (13; 13a, 13b, 13c, 13d) and/or the pot support device (14; 14a, 14b, 14c, 14d, 14e, 14f) at least one, in particular several, preferably four, bent metal parts (13a, 14a; 13b, 14b; 13c, 14c; 13d, 14d), wherein a diameter of the bent metal part or parts is in particular in the range of 3 to 5 mm. 6. The camping stove (1) according to one of claims 4 to 5, wherein the pot support device (14; 14a, 14b, 14c, 14d, 14e, 14f) in addition to the one-piece material part(s) has one or more support devices (14e, 14f) on or in the housing (10) for placing the cooking utensil (30) on the camping stove (1), in particular arranged between the first and the second burner (11, 12), and with these supporting devices (14e, 14f) in particular are designed such that they only act as part of the pot support device (14), but not as part of the stand device (13). 7. The camping stove (1) according to one of the preceding claims, further comprising a windbreak (17) for protecting a flame of the first and/or the second burner (11, 12) against being blown out, in particular designed as a partial or complete circumferential elevation (17 ) of the housing (10). 8. The camping stove (1) according to one of the preceding claims further comprising a connection hose (18) for connecting the camping stove (1) to a fuel supply (40), in particular to a gas cartridge (40), and in particular wherein the camping stove (1) has a recess (23) for at least partially stowing away the connecting hose (18). 9. The camping stove (1) according to claim 8 further comprising a pressure regulator (24), in particular a gas pressure reducer, wherein the pressure regulator (24) is preferably arranged in or on the housing (10). 10. The camping stove (1) according to any one of the preceding claims, wherein the first control valve (15) and / or the second control valve (16) each have a handle unit (15a, 16a) for manual adjustment of the control valve (15, 16) by a users and in particular wherein the handle unit can be reversibly transferred from a transport position to an operating position, in particular designed in such a way that a first overhang (d3) of the handle unit over a front surface (21) of the housing (10) in the transport position is no more than 5 mm and /or that a second projection (d4) of the handle unit over the front surface (21) of the housing (10) is between 3 and 5 cm in the operative position. 11. The camping stove (1) according to any one of the preceding claims with a total weight of less than 900 g. 12. The camping stove (1) according to one of the preceding claims further comprising at least one latching element (15b, 16b, 25b, 26b) for fixing a component of the camping stove (1) in a transport position. 13. The camping stove (1) according to any one of the preceding claims, wherein the housing (10) is designed in several parts for circulating cooling air between individual housing parts (10, 17). 14. A cooking system (50) comprising - a camping stove (1) according to one of the preceding claims, and - A fuel supply (40), in particular a gas cartridge, which can be connected to the camping stove (1) by means of a connecting hose (18) for supplying the first and second burners (11, 12) of the camping stove (1) with fuel.