EP1993417A2

EP1993417A2 - Portable device for the safe kindling of a fire

Info

Publication number: EP1993417A2
Application number: EP07701924A
Authority: EP
Inventors: Bertrand Dusseiller
Original assignee: Dubertec GmbH
Current assignee: Dubertec GmbH
Priority date: 2006-03-13
Filing date: 2007-03-08
Publication date: 2008-11-26
Also published as: WO2007104170A2; WO2007104170A8; WO2007104170A3

Abstract

The invention relates to a portable device (10) for the safe kindling of a fire, optionally for cooking, especially for travel purposes. Said device can consist of a plurality of sheet metal parts (20, 30, 50, 60) including a bottom tray (20), lateral walls (30) that can be mounted in the bottom tray, a rear wall, a grid (50) to be fixed to the lateral walls and the transversal wall, and a fire tray (60) that can be inserted into the bottom tray. According to the invention, the cited sheet metal parts are respectively provided with a plurality of recesses (24, 32, 33, 52, 64) so that they do not change shape under the heat load caused by the fire.

Description

DESCRIPTION TITLE

Portable device for the protected ignition of a fire

TECHNICAL AREA

The present invention relates to a portable device for protected ignition of a fire and optionally for cooking in particular for travel purposes, which is composed of a plurality of sheet metal parts and as such sheet metal parts at least one floor pan, aufrichtbare in the floor pan

Sidewalls and a grate to be mounted on the side walls

STATE OF THE ART

Such devices are known per se. They are used by hikers, hunters, trappers, canoeists and other outdoor enthusiasts to use in areas where open fire, e.g. it is difficult to start because of dampness or dangerous or even forbidden due to risk of fire, to safely start a warming fire and to cook it if necessary. As a fuel for the known devices is suitable, e.g. Wood that is practically everywhere available in the form of small pieces of wood. The devices also require less wood for cooking than open fires.

The known Vorichtungen are generally of poor quality and are also often simply made of sheet metal waste in-house or at least a little professional. They tend to rust quickly and, in particular, to deform under the heat generated by the fire. They often can not be put together properly, become unstable or even unusable. When trying to bend bent parts or "force" together with the other sheet metal parts, there is a significant Risk of injury. There is also the danger that the fire ignited in them will spread unchecked if they fall apart during your use.

DESCRIPTION OF THE INVENTION The object of the invention is to remedy this situation. According to

Claim 1, this is achieved in that the sheet metal parts are each provided with a plurality of incisions such that they do not deform under the heat load caused by the fire.

As has surprisingly been found, this is possible with respect to all sheet metal parts of the device and guarantees long-term, safe use.

Preferred embodiments of the invention are characterized in the dependent claims.

For example, e.g. the bottom plate of the bottom pan provided with them cross-cuts, each extending a little way into her bent side wall parts.

Adjoining each other, bent from the bottom plate side wall parts should have no connection with each other.

Preferably, the device is also provided with an insertable into the floor pan fire pan. If the bottom pan and the fire pan are kept at a distance from each other, the device can be placed directly on the ground, because the bottom pan is not very hot. As a spacer bulges can be provided on one of the two parts in particular.

Like the floor pan, the fire pan can also be provided with a bottom plate, in which they are made crossing cuts, each extending a little way into her bent side wall parts. As with the floor pan, adjacent to each other in the fire tank, bent from its base plate side wall parts should have no connection with each other.

The Seitenwandteiie can be prevented with several cuts on the bending, which are arranged with respect to their center star-shaped and / or annular.

The rust can be protected against deformation by extending between opposing edge zones bars are interrupted by at least one incision.

As a further sheet metal part, the device according to the invention preferably also has a rear wall which can be inserted between the side walls, whereby, for example, a third side of the device can be closed and its stability increased.

The grate can be designed so that it can be placed on the floor pan in the manner of a lid. Floor pan and grate then form a flat box, in which the other sheet metal parts can be accommodated in a space-saving suitable for training transport.

Finally, it is advantageous to form the sheet metal parts from a stainless steel, in order to protect it against corrosion: In a simple sheet metal material, the corrosion is particularly pronounced because of the heat, especially when added to moisture. Parts made of stainless steel can also be cleaned better. For the grate and the fire pan, which are exposed to the special heat, can be used with advantage even a high-temperature alloy with higher proportions of chromium, nickel and silicon, which in addition is less prone to deformation.

BRIEF EXPLANATION OF THE FIGURES

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. Show it: 1 shows a device according to the invention in the assembled, ready-to-use state with a view of its front side;

Fig. 2 shows the device from behind;

3 shows the device in the folded state; Fig. 4. the bottom trough of the device;

Fig. 5 is a side wall of the device;

Fig. 6 shows the rear wall of the device;

Figure 7 shows the fire pan of the device;

8 shows the grate of the device from below; 9 shows the grate in a longitudinal section;

10 is an exploded view with assembly instructions; and

Fig. 11 of an exploded view with instructions for folding.

In the individual figures, the same parts are provided with the same reference numerals. Of multiply occurring elements is partially only one each provided with a reference numeral.

WAYS FOR CARRYING OUT THE INVENTION

The device 10 according to the invention shown in the figures is constructed from a plurality of sheet metal parts: a base pan 20, two side walls 30, a rear wall 40, a grate 50 and a fire pan 60.

The bottom tray 20 has, according to FIG. 4, a base plate 21, two lateral side wall parts 22 which are bent upward relative to the latter and a rear side wall part 23 which is bent upwards in the same direction. A corresponding front side wall part is not available.

The side walls 30 have a short bent leg 31 and are thereby L-shaped.

The rear wall 40 has two short bent legs 41 and is thus U-shaped. The grate 50 is provided with a grid-forming grid bars 51 and has from a circumferential, narrow edge region also narrow, downwardly bent edge portions 53 and 54 on. The whole grate including the grating is, for example, punching technology and / or produced by laser cutting from a single piece of sheet metal.

The fire pan 60 corresponds in its construction substantially the bottom pan 20, except that it has sides bent upwards side wall parts. In its bottom plate downwardly projecting bulges 63 are present.

From the described sheet metal parts can be composed according to FIG. 10, the device shown in Figures 1 and 2, with each other stabilize each other. The side walls 30 and the rear wall 40 engage with their lower edge between the side wall portions 22, 23 of the bottom tray 20 and 62 of the fire pan 60 a. Their upper edge is embraced on the outside by the downwardly bent edge portions 53 of the grate. The front edge portion 54 of the grate is, as shown in Fig. 9 and in particular in the detailed view B of Fig. 9, obliquely bent backwards and intervenes between the side walls 30 that they can not tilt inward in their front area. In its rear area prevents the rear wall 40, which engages with their legs 41 both 41 between the side walls. The legs 31 of the side walls 30 on the other hand surround the rear wall 40 from the outside. For the construction of the inventive device no additional fastening means are required.

In the fire pan 60, for example, with small pieces of wood as fuel a fire can be kindled, the furnace is open to the front substantially and thereby fuel can always be refilled easily. Otherwise, the fire is safely enclosed by the various walls. Due to the aforementioned bulges 63 in the bottom plate of the fire pan 60, this is held at a certain distance from the bottom plate 21 of the bottom pan 20. The air layer between the two bottom plates 21 and 61 has an insulating effect, so that the bottom plate 21 of the bottom trough 20 can not become very hot. The device according to the invention can be conveniently manufactured in different sizes. For medium size, for example, it has a width of 20 cm, a length of 30 cm and a height of 18 cm. Their height in the folded state is for example 5 cm. The thickness of the base plate, the side walls and the rear wall are 0.8 mm, those of the fire tank are 1 mm, and of the grate 1.5 mm.

Sheet metal parts of the type described tend to deform under the action of heat. In the case of the sheet metal parts of the device according to the invention, this is avoided by a large number of incisions. These are so attached that deforming stresses can not form, at least over longer distances in the parts. The parts are thus virtually "relaxed".

In the bottom tray 20 of Fig. 3 incisions 24 are present, which are across the entire bottom plate 21 and still a little way in the lateral

Side wall parts 22 extend into it. The cohesion of the floor pan 20 results only on the Seitenwandteiie 22. These side wall parts 22 are also, as can be seen from the detailed view A of Fig. 4, not connected to the rear side wall portion 23, which also contributes to the relaxation of the bottom pan 20 as a whole. In addition, a relatively large distance is left between the side wall parts 22 and 23, thereby avoiding bending of the bottom plate 21 in its corner regions when the side wall parts 22 and 23 are bent. This also ensures that the side walls 30 fit neatly into the corner areas and without play flat against the side wall parts 22 and 23.

Basically similar, the fire pan 60 is relaxed, except that in her the side wall portions 62 in the corner areas not as large a mutual distance, as the side wall portions 23 and 23 of the bottom tray 20. Also here four cuts 64 are provided because the fire pan 60 hotter than the floor pan 20 becomes. By the other number of incisions these are also offset relative to the incisions 24 in the bottom tray 20, so that hot ash or embers from the fire pan 60 not straight way down from the device 10 may fall out. In order to avoid the falling out of ashes are the Incisions 24 and / or 64 preferably also made very narrow and have, for example, only a width of 1/10 mm.

The side walls 30 are relaxed on the one hand by four notches 32 extending in a star shape with respect to their center and on the other hand by four incisions 33 arranged on a ring between them. These cuts can also be very narrow, e.g. be made with a width of only 1/10 mm, so that through these cuts no flameout can occur or sparks and ash can escape.

When grate 50, the bars 51 are cut through cuts 52 so that between opposing edge zones of the grate 50 extending in a straight line bars 51 are interrupted by at least one incision 52. It can be seen that several of the bars are cut more than once. The cuts are distributed so that the rust as a whole retains its integrity. In this way, stresses in the grid can not build up over long distances, but must always take several detours in the manner of a labyrinth over intersecting and adjacent bars. The incisions 52 are preferably made more ready than the incisions in the other sheet metal parts and have z .. a width of 1.5 mm.

The illustrated geometry of the cuts in the individual sheet metal parts is not mandatory and could in principle be modified and executed in other ways. However, the illustrated geometry has proven to be particularly convenient and effective.

The device 10 according to the invention can be compactly compact according to FIG. 11, wherein the grate 50 can be placed in the manner of a lid on the floor pan 20, as shown in FIG. 3. Floor pan 20 and grate 50 thereby form a flat box in which the remaining parts 30, 40 and 60 find space.

Finally, a transport bag 70 can still be provided, which receives the device 10 in the folded state according to FIG. 1 e). NAME LIST

10 device according to the invention

20 Floor pan 21 Floor plate of the floor pan

22 lateral side wall parts of the floor pan

23 back side wall part of the floor pan

24 incisions in the bottom pan 30 side wall 31 bent leg of the side wall

32 star-shaped cuts in the side wall

33 annular cuts in the side wall

40 rear wall

41 bent legs of the rear wall 50 rust

51 bars of the grate

52 incisions in the bars

53 bent edge portions of the grate

54 front bent edge portion of the grate 60 fire pan

61 Base plate of the fire pan

62 side wall parts of the fire pan

63 bulges in the bottom plate of the fire pan

64 cuts in the bottom plate 70 Transport bag

Claims

1. Portable device for protected ignition of a fire and, where appropriate, for cooking in particular for travel purposes, which is composed of several sheet metal parts and as such sheet metal parts at least one

Floor pan, erectable in the floor pan sidewalls and a grate to be mounted on the side walls, characterized in that said sheet metal parts are each provided with a plurality of incisions such that they do not deform under the heat stress caused by the fire.

2. Apparatus according to claim 1, characterized in that the base tray has a bottom plate and that these transverse incisions each extend a little way in her bent side wall parts into it.

3. A device according to claim 2, characterized in that adjacent to each other, bent from the bottom plate Seitenwandteiie have no connection with each other.

4. Device according to one of claims 1 - 3, characterized in that it comprises as a further sheet metal part can be used in the floor pan fire pit.

5. Apparatus according to claim 4, characterized in that the bottom pan and the fire pan, preferably by bulges on one of the two parts, are mutually spaced.

6. Device according to one of claims 4 or 5, characterized in that the fire pan has a bottom plate and that these transverse incisions each extend a little way into her bent side wall parts.

7. The device according to claim 6, characterized in that adjacent to each other, bent from the bottom plate side wall parts have no connection with each other.

8. Device according to one of claims 1-7, characterized in that the side walls are provided with a plurality of incisions, which are arranged in a star-shaped and / or annular with respect to their center.

9. Device according to one of claims 1-8, characterized in that between each opposite edge zones of the grate extending grating bars of the grate are interrupted by at least one incision.

10. Device according to one of claims 1 - 10, characterized in that it has as a further Blechteii an insertable between the side walls of the rear wall.

11. The device according to one of claims 1-11, characterized in that the grate is placed on the floor pan in the manner of a lid and that the remaining sheet metal parts find place in the bottom pan with the grate mounted.

12. Device according to one of claims 1-9, characterized in that the sheet metal parts consist of a stainless steel.