GB2358918A - Portable and collapsible camp stove with three point support - Google Patents

Abstract

The invention concerns a camp stove wherein the body (2), generally elongated in shape, is equipped at its outer end (2a) with means (4) for being fixed and connected on the tank (3), and, at its inner end (2b) with means for supplying (13) a burner (5), and two brackets (6) each bearing an articulated telescopic leg (7) mounted sliding relative to the brackets, each leg (7) capable of taking either an operative position, wherein it is extended by being spaced outwards, between the bracket and a horizontal support surface, or in a storing position, wherein it is pivoted and retracted relative to the bracket (6) and extends parallel thereto, each of said two brackets (6) being themselves articulated about a vertical axis and relative to said body (2) so as to be capable of taking either an operative position wherein it is substantially at 120{ from the body longitudinal axis, or in a storing position wherein it is folded back against said body.

Description

2358918 Portable and dismantleable tripod-type stove The invention relates

to a portable tripod-type stove in which one of the elements of the tripod consists of a reservoir of gas feeding burner.

the stove Stoves of this type, made up of a body carrying the burner and equipped with means of attachment to the reservoir, means of connecting to this reservoir the circuit for supplying the burner, means for attaching two legs which complete the tripod, means for regulating the flow rate of the gas, and means for supporting the vessel are already known from US Patents 3 400 705 and 3 933 146, and from Japanese Utility Model No. H6-84124.

In the known stoves, the body and the tripod entity which remains cumbersome and is difficult to store in a tripper's bag. This still, incidentally, relatively complicated f orm an therefore entity is to use.

The object of the present invention is to overcome these drawbacks by providing a tripod-type stove which occupies a very small amount of space when in the storage position, while at the same time offering great ease of use.

In the stove according to the invention, the body, of linear overall shape, is equipped at its outer end with means for attachment and connection to the reservoir and, at its inner end, on the one hand, with means for supplying the burner and, on the other hand, with two brackets each carrying a telescopic leg which is articulated and mounted so that it can slide with respect to them, each leg being able to occupy either a position of use in which it extends, diverging outward, between the bracket and a horizontal support surface, or a storage position in which it is pivoted and retracted with respect to the bracket and extends parallel to it, each of these two brackets being itself articulated about a vertical axis and with respect to the body so that it can occupy either a position of use in which it is essentially at 120' from the longitudinal axis of the body of the other bracket, or a storage position in which it is folded against this body.

Thus, when the stove is in service, these two brackets carrying the legs form, together with the linear body resting on the reservoir, a tripod which is particularly stable. For storage, the legs are first pivoted then retracted with respect to the brackets. After the brackets have been folded against the body and the body has been dismantled from the reservoir, the entire stove, which is not very bulky, can very easily be stored in the pocket of a touring bag.

Other features and advantages will emerge from the description which follows with reference to the appended diagrammatic drawing which depicts two embodiments of the stove according to the invention.

Figure 1 is a perspective view of a first embodiment, when the stove is in the position of use.

Figure 2 is an exploded ' perspective view showing the essential components of the body of a stove according to Figure 1.

Figure 3 is a perspective view of the stove according to Figure 1, when in the storage position.

Figure 4 is a view from the side and in part section showing another embodiment of this stove.

Figure 5 is a view in elevation and end-on of the stove according to Figure 4.

In the embodiment of Figures 1 to 3, the numerical reference 2 denotes the body of the stove in general, and the numerical reference 3 denotes a reservoir of pressurized gas.

The body 2, of linear overall shape, is equipped, at an end known as the outer end 2a, with means 4 for attachment and leaktight connection to a reservoir 1 of burnable gas (disposable or refillable vessel), and its end 2b, known as the inner end, carries a burner 5. The body 2 also supports two brackets 6, articulated.

to the ends of which two legs 7 are As shown in greater detail in Figure 2, the body 2 comprises an internal cavity and for this reason is made up of a lower part 8 and of an upper part 9 joined together. The lower part 8 is bent at 8a and bent back at 8b and extended by a circular cavity 10 from which a cylindrical end f itting 12 projects downward. The cavity 10 is intended to house the means 13 of supplying the burner 5. These means are connected by a pipe 14 housed in the internal cavity of the body 2, to a device 15 for controlling the flow rate of gas, incorporating the means 4 for attaching and connecting the body 2 to the reservoir 3. The means 4 comprise various components, only the collar 16 of which is depicted in Figures 1 to 3, and provide for all of the following: they allow reversible rigid assembly to the delivery valve of a cartridge of gas, allowing the valve element to be pushed back in order to open said valve, and they provide a leaktight communication between the inside of the cartridge and the pipe 14. As the structure of the means 4 is not part of the present invention, these means will not be described further in detail.

The upper part 9 of the body 2 is a plate which is also bent and bent back at 9a and 9b, to match the shapes of the lower part 8 over which it is fitted. The upper face of its flat part has ribs 17 for supporting the vessel that is to be heated on the stove.

Each of the brackets 6 is made up of an essentially horizontal upper arm 6a, of an inclined intermediate arm 6b and of a lower ring 6c. The two rings 6c of the two brackets 6 are mounted so that they can rotate freely on the cylindrical end fitting 12 of the body 2, on which they are prevented from vertical translation by means, not depicted, such as a collar which is snap-fitted onto the end fitting 12. Each of the brackets can thus pivot about the vertical axis passing through the axis of the burner, to occupy - 4 either the position of use depicted in Figure 1, in which they make an angle of the order of 120' between them, and are themselves spaced 120' from the longitudinal axis of the body 2, or the storage position depicted in Figure 3, in which they are folded back against the body 2.

Each of these brackets 6 has a ribbed upper face 18 which is essentially in the plane of the face 17 of the body 2, so that it can form a support for a vessel. At its free end, each bracket 6 has a horizontal pin 19 passing through it, which pin also passes through a longitudinal slot 20 in the corresponding leg 7. By virtue of this arrangement, each of the legs 7 can occupy either the position of use depicted in Figure 1, in which it is essentially vertical, that is to say diverges downward from the pin 19 toward the support surface, or the storage position depicted in Figure 3, in which having been straightened, by pivoting, into alignment with the arm 6a of the bracket, it is pushed in or retracted by sliding into this arm. To this end, on the one hand, each arm 6 has a U-shaped cross section and, on the other hand, each leg 7 is articulated to the pin 19 inside the U- shaped cross section. Figure 1 shows that when the appliance is in a position of use, it has very good stability because of the separation between the three supports which consist of the reservoir 3 placed vertically and of the two legs 7, broadening the support polygon by their separation. 30 Figure 3 shows that when the appliance is in the storage position, by virtue of the fact that the legs 7 are retracted telescopically into the arms 6a of the brackets 6, and the fact that the brackets folded back against the body 2, the entity particularly small in bulk and can easily be stored a bag. In the embodiment depicted in Figures 4 and 5, the body 2 consists of a hollow metallic component 50 which is linear and made up of a curved part 50a and of are is in a straight part 50b. The free end of the curved part 50a contains the means 4 for attachment and connection to the reservoir 3, these means being rotatable by a lever 22. As in the previous embodiment, these means 4 are associated with or incorporated into a device 15 for controlling the flow of gas, which can be regulated by an operating knob 15a. Likewise, this device 15 downstream of the connecting means 4 is connected by the pipe 14 to the means 13 for supplying the burner 5.

This device differs essentially in the means of articulation of the two brackets 6; the inner end 2a of the body 2 is equipped with a flange 23, from which there project two vertical fingers 24, one lying on each side of the mid-plane of the body and 120' apart.

Each of these fingers is intended to form a pivot for the lower part 25 of a bracket 6. The connection between each bracket and the flange 23 is achieved by riveting, that is to say by crushing the pins 24, as shown as 24a in Figure 4. The horizontal branch 26 of each bracket has ribs 27 which ease the positioning of the vessels that are to rest on it. Its outer free end has a horizontal transverse pin 19 passing through it, which pin also passes through two oblong slots 28 f ormed in the two wings of a leg 7 of U-shaped section.

Furthermore, and as shown in greater detail in Figure 5, a finger 29 projects from the outer free end of the upper branch 26 of each bracket 6 when the leg 7 reaches the end of its extension travel with respect to the bracket 6. As this leg is pivoted with respect to the bracket to be traveled along, at least one slot 30 is formed at the top and in the web of the leg 7, to form a catch that locks this leg in the position of use. The two brackets 6 which constitute a support for the vessel, are associated with an additional support 32 which, as shown in Figure 4, is attached and riveted to the curved part 50a of the body 2. This support 32 is therefore fixed, whereas the two brackets 6, and therefore their horizontal branches 26, can each rotate with respect to said support.

The measure of having a number of slots 30 on each leg 7, staggered along its length, allows the position of said leg to be adjusted in terms of height.

As in the previous embodiment, when the stove is in the position of use, it has very good stability. It is brought into the storage position in the same way, by straightening out the legs 7 horizontally into alignment with the upper branches 26 of the brackets 6, by sliding these legs longitudinally on the brackets in order to reduce their bulk. The brackets 6 are then pivoted until they are folded back against the body 2.

The support 32 may be extended inward and upward by an appendage 32a, preventing any cooking stove [sic] from covering the inner end 2b of the body 2, and thereby heating the reservoir 3.

Quite clearly, bringing the device into the position of use requires the same operations to be carried out, but in the opposite direction.

the the (6) the two of (2a the

Claims (7)

1 A portable tripod-type stove whose body (2), which carries the burner (5), isequipped with means (4) of attachment to a reservoir (3) of pressurized gas placed vertically and constituting one of the legs of tripod, means (4) for connecting the reservoir and circuit (14) supplying the burner with gas, means for supporting a vessel, means (15) for regulating flow rate of the gas and means (19) for attaching more legs (7), characterized 1n that the body (2), linear overall shape, is equipped at its outer end with means (4) for attachment and connection to reservoir (3) and, at its inner end (2b), on the one hand, with means (13) for supplying the burner (5) and, on the other hand, with two brackets (6) each carrying a telescopic leg (7) which is articulated and mounted so that it can slide with respect to them, each leg (7) being able to occupy either a position of use in which it extends, diverging outward, between the bracket and a horizontal support surface, or a storage position in which it is pivoted and retracted with respect to the bracket (6) and extends parallel to it, each of these two brackets (6) being itself articulated about a vertical axis and with respect to the body (2) so that it can occupy either a position of use in which it is essentially at 120' from the longitudinal axis of the body, or a storage position in which it is folded against this body.

2. The stove as claimed in claim 1, characterized in that the body (2) is hollow and contains a pipe (14) extending from its outer end (2b) to its inner end (2a), connecting a device (15) for controlling the flow of gas, which device is placed downstream of the means (4) of connection to the reservoir (3), to the means (13) for supplying the burner (5).

3. The stove as claimed in claim 1, characterized in that each bracket (6) is secured to a lowerring (6c) via which it is mounted so that it can rotate on a cylindrical end fitting (12) projecting below the outer end (2 b) of the body (2), said ring (6a) being prevented from vertical translation by a locking collar attached to the end fitting (12).

4. The stove as claimed in claim 1, in that the outer end (2b) of the body flange (23) from which there project fingers (24), and the lower part (25) of is articulated and riveted to each of (24).

5. The stove as claimed in claim 1, characterized in that each of the brackets (6) comprises a horizontal branch (6a, 26), to the end of which the corresponding leg (7) is articulated by a horizontal pin (19) running in at least one oblong slot (20, 28) formed in this leg.

6. The stove as claimed in claim 1, characterized in that each of the brackets (6) comprises a horizontal branch (6a, 26), the upper face of which is designed to support a vessel, and in the same plane as the upper face of a support element (17, 32) formed fixedly on the body (2).

7. The stove as claimed in claim 1, characterized in that each bracket (6) is equipped with an end finger (29) which projects outward and engages, at the end of the pivoting travel for extending the corresponding leg (7), in a slot (30) formed at the top of the leg (7) in order to lock this leg in the position of use.

characterized (2) carries a two vertical a bracket (6) these f ingers