JPH0429285Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to a portable simple stove that uses liquefied gas as fuel, and in particular, a foldable type stove that allows the gap between the legs to be changed between when it is carried and when it is in use. The present invention relates to a fuel cartridge cylinder attachment/detachment device adapted to an opening/closing frame mechanism.

``Prior art'' There are already various kinds of simple stoves that use a small cartridge cylinder filled with liquefied gas as a fuel tank and set it on a cooking utensil stand equipped with a combustion part such as a burner and a flame adjustment device. Several methods have been proposed, and some have been put into practical use.

Among these simple stoves, portable ones require relatively strong support legs (trivets) to ensure the stability of the cooking utensil during use, but on the other hand, considering the convenience of carrying it, There is a need to reduce the bulk of the bulky supporting leg structure. For this reason, the supporting legs of conventional stoves of this type are often of an assembled type or a foldable type.

Similarly, the mounting table structure of the stove body is often structured to use the cylinder itself or a case housing the cylinder as a stand, with the intention of providing stability during use and reducing the bulk when carrying the cylinder.

``Problems that the invention seeks to solve'' By the way, from the viewpoint of convenience for transportation or portability, gas cylinders cannot be made in a particularly bulky shape, and even when a housing case is used, it is bulky and inconvenient. Therefore, it is not possible to use a container that is as bulky or wide-bottomed as the left.
In simple stoves that use these as direct mounts, the stability of the appliance body is poor, which limits the size of applicable cooking utensils, and the support legs for cooking utensils are integrated with the burner part. In this case, the limitations of the applicable cooking utensils mentioned above are more significant.
On the other hand, the assembly type support structure is effective in terms of reducing the bulk when carrying, but on the other hand, the assembly work is troublesome,
In particular, there is a risk of parts being lost when disassembled, and this is not common as a device for simple use. In this respect, even considering its structural complexity, the foldable type is not as convenient to use as other mechanisms.

Therefore, in pursuit of the various functions required for this type of portable simple stove, a structure that has a support separate from the cylinder and that serves as a stand for the cooking utensil, that is, a trivet-shaped stand, is convenient for use. In addition, it is effective in processing because it is not subject to restrictions such as the cylinder shape, and if it is possible to reduce the bulk of this trivet-shaped pedestal when carrying it,
The most convenient.

On the other hand, if the opening/closing pedestal mechanism is adopted in order to reduce the bulk, it is necessary to improve other mechanical parts thereof, particularly the loading/unloading mechanism of the cartridge cylinder, which is usually integrated with the pedestal.

Therefore, the present invention aims to provide a cartridge cylinder attachment/detachment device adapted to an opening/closing leg mechanism that satisfies the above requirements as much as possible in a portable simple stove using a cartridge type replacement cylinder. This is the purpose.

"Means for Solving the Problem" In order to achieve this objective, the present invention provides a first frame having a pair of legs hanging from the opposite outer peripheral walls of the annular body.
and a pair of legs hanging down from the outer circumferential wall of a stepped cylindrical body that fits into the annular body, and the upper end surface of the legs extends to a height position of the upper surface of the annular body. and a collar-shaped presser plate whose periphery is fixed to the extended upper end surface, and the annular body of the first member and the cylindrical body of the second member are fitted by shifting the positions of their legs. and sandwiching the annular body vertically between the cylindrical body and the presser plate, and assembling both members so as to be relatively rotatable, while arranging a burner on the annular body, A nozzle is arranged in the cylindrical body, and a locking part having an oblique guide groove and an engagement step formed at a rising depth of the slanted guide groove is provided on the lower peripheral edge of the cylindrical body, and on the other hand, the nozzle and A cartridge cylinder for a portable stove, in which a projection is provided on the outer periphery of a circular mouth frame of a case that accommodates a cartridge cylinder having a supply port that is crimped and connected, and the external projection is rotatably mounted along the guide groove. We propose an attachment/detachment device.

It is effective to configure the case with a framework structure through which water can freely flow, thereby making the portable stove of the present proposal function effectively.

"Function" The first member and the second member, each having a pair of legs, are relatively rotatable due to the sliding fit between the ring body and the cylindrical body. The legs can be rotated within a range where they do not come into contact with each other, and as a result, the open leg state where the legs are the farthest apart can be used as a stable state, and the two pairs of legs can be used in a stable state. With the legs closed and in contact with each other, it can be carried with minimal bulk.

Then, by using a case to attach the storage cartridge cylinder to the locking portion provided on the lower edge of the cylinder of one of the two members that rotate relative to each other, the two members rotate relative to each other. Even if the cylinder is installed, it will not interfere with this rotation, and the nozzle mechanism part located in the cylinder body and the burner part located in the ring body of the other member and their upper and lower parts. There is no unfavorable influence on the connection relationship in the direction.

Next, a preferred embodiment of the present invention will be described.

``Example'' Fig. 1 is a side view of a portable stove equipped with the device of the present invention, and Fig. 2 is a plan view thereof. The first member 1 is integrally molded from resin. On the other hand, the second member 2, which is also made of a heat-resistant resin molded body, is composed of a cylindrical body 2a that fits into the annular body 1a and a pair of legs 2b, and the cylindrical body 2a
is formed by the fitting part 2c and a large-diameter stepped part 2d that abuts the lower edge of the ring body 1a, and the supporting legs 2b are separated from the outer peripheral surface of the fitting part 2c by about the thickness of the ring body 1a. It hangs down from the opposing outer peripheral wall of the large-diameter stepped portion 2d.

These first member 1 and second member 2 are
Fitting the ring body 1a and the cylinder body 2a, and
A presser plate 3 made of a flange having substantially the same shape as the edge of the ring body 1a is placed on the matching upper end surfaces of the two bodies 1a and 2a.
is attached, and the upper and lower edges of the first member 1 are inserted between the presser plate 3 and the large diameter stepped portion 2d of the second member 2, and both members 1 and 2 are rotated relative to each other. It is possible to assemble it. Incidentally, the holding plate 3 is attached by fixing the projecting ear piece 3a to the upper surface of the second member 2 with screws or the like.

On the other hand, the first member 1 is provided with a burner 4 in its annular body 1a, and the second member 2 is provided with a nozzle 5 facing the burner 4 at the center of its cylindrical body 2a, and An operation knob 6 of a firepower adjustment plug mechanism is provided on the outer periphery of the nozzle 5 and extends from the nozzle 5 toward the periphery.
Further, a locking portion 8 having an inclined guide groove 7 on its lower edge and an engaging stepped portion 7a at its rising depth is integrally formed.

Reference numeral 9 denotes a case consisting of a four-sided frame, and a projection 10 is provided on the outer periphery of the upper circular frame, and a cartridge cylinder 11 is provided.
With the protrusion 10 accommodated in the guide groove 7,
The case 9 is pushed around along the slanted guide groove 7, and the protrusion 10 slides up and is tightened. The engaging action of the stepped portion 7a ensures that it is fixed in such a way that it cannot be easily removed. As a result, the valve port of the cartridge cylinder 11 is aligned with the injection port integrated with the nozzle 5, and fuel gas is supplied from the valve port opened by the valve pressure caused by the lifting. Furthermore, the valve pressing against the biasing force in the valve closing direction at the valve opening is effectively tightened and fixed to the case 9 due to the elasticity of the material of the guide groove 7 and the repulsive force of the valve biasing spring. act.

The aforementioned operation knob 6 is connected to the plug rod (third
(see figure) and faces a mounting wall 2e provided on the outer periphery of the second operating member 2.

Reference numeral 13 denotes a rectangular receiving tray made of a metal plate, with bottom pads 14 arranged in each square, and fitting recesses 15 formed on the back of the square by side pieces bent by embossing.

On the other hand, a receiving piece 16 made of a heat-resistant material is protruded from the upper end surfaces of the first member 1 and the second member 2 with a heat insulating plate 12 interposed between the upper end surfaces. The fitting recesses 15 of the receiving tray 13 are made to fit together.

That is, when assembling each component shown in the fourth exploded view in sequence, first the first member 1 and the second member 2 are assembled.
and attach the presser plate 3 to it to integrate the two members 1 and 2, and between the two members 1 and 2, the legs 1b and 2b are The cartridge cylinder 11 housed in the case 9 is attached to the lower part of the cylinder body 2a, and the pedestal 1
At the top of b and 2b, there are legs 1b and 2b.
When the legs are in the most open state (each leg occupies a cross-shaped position), the receiving pieces 16, 16... are covered with the fitting recesses 15, 15..., respectively, and the receiving tray 13 is attached.

In this assembled state, as shown in FIGS. 1 and 2, the legs 1b and 2b are spread apart, and the gaps between the four legs are spread out approximately evenly. When the legs 1b and 2b are expanded, as shown in FIG. It is held by engagement of a locking protrusion 19 provided on an elastic tongue piece 18 formed by cutting out a part of the side wall of 2a.

That is, by relatively rotating the slidable ring body 1a and the cylinder body 2a, the locking protrusion 19, which is always in pressure contact with the inner wall surface of the ring body 1a, is moved into the engagement groove 17.
It reaches this position and falls into the engaged state. Then, the pedestal 1b secured by this
and 2b are in a temporarily fixed state that can be easily released from the engaged state by rotating the bodies 1 and 2 in the opposite direction, but the mounting of the receiving tray 13 is not possible at the occupied position of the legs 1b and 2b. As a result, the legs 1b and 2b are firmly held in a locked state.

When carrying the device, the receiver 13 is first removed and the receiver piece 16 is pulled out from the fitting recess 15.

As a result, the legs 1b and 2b are ready to pivot again. Therefore, these isolegs 1b and 1
By rotating a in the opposite direction, it can be moved from the sixth solid line position shown in the figure to the chain line position where the side edges of the legs 1b and 2b are in contact with each other.

By setting this moving state to the closed state of the legs 1b and 2b, the bulk can be reduced.

In the above embodiment, as the cartridge cylinder 11 is gradually cooled by the heat of vaporization of the liquefied gas during combustion use, the vaporization rate decreases and the combustion rate decreases, especially when used outdoors in the cold season. There may be cases where the condition becomes unstable, but in such cases, by immersing the bottom of the cylinder 11 in water, the stable combustion condition can be maintained by receiving the heat of vaporization from the stored water. However, for this purpose, by constructing the case 9 with a framework structure through which water can freely flow, the case 9 can be connected to the attached water storage tank.
The cartridge cylinder 11 accommodated therein can be immersed in water by immersing the bottom of the tank.

"Effect of the invention" As described above, according to the device of the present invention, the first member and the second member each having a pair of mounting legs can be opened and closed by the relative rotation operation of the first and second members. In this method, a burner is arranged in a ring body located at the center of rotation of both members, and a case containing a cartridge cylinder is attached to an engaging part provided on the lower edge of the other cylinder body. , there is no hindrance to the opening and closing operations of the pedestal, and opening and closing of the pedestal does not adversely affect the connection between the burner and the cartridge cylinder, etc.
The device of the present invention has the most rational configuration when applied to an opening/closing frame mechanism, and since the cartridge cylinder can be attached and detached by simply rotating the case, it is extremely convenient to use. .

In addition, by configuring the case that houses the cartridge cylinder with a framework structure through which water can freely pass, the cylinder can be immersed in water during combustion use, and water from the cylinder can be immersed in water. The vaporized gas can be stably supplied.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of a portable stove equipped with the device of the present invention, Fig. 2 is a plan view thereof, and Fig. 3 is a side view taken along line A-A in Fig. 2. , FIG. 4 is an exploded view thereof, and FIG. 5 is an exploded perspective view showing the holding mechanism in the open leg position in the above embodiment.
FIG. 6 is a plan view showing the opened and closed states of the legs in the above embodiment. DESCRIPTION OF SYMBOLS 1... First member, 2... Second member, 1a... Ring body, 2a... Cylindrical body, 1b... Frame leg, 2b... Frame leg, 3... Presser plate, 4... Burner, 5 ...Nozzle, 6...Operation knob, 7...Guide groove, 7a...
...Engagement stepped portion, 9...Case, 10...Protrusion, 11
... Cartridge cylinder.

Claims (1)

[Claims for Utility Model Registration] (1) A first member 1 having a pair of legs 1b hanging from opposing outer peripheral walls of a ring body 1a, and an outer peripheral wall of a stepped cylinder 2a that fits into the ring body 1a. A second member 2 has a pair of legs 2b hanging down from the frame and extends the upper end surface of the legs 2b to the height of the upper surface of the ring body 1a, and the periphery is fixed to the extended upper end surface. and a flange-shaped presser plate 3,
Ring body 1a of member 1 and cylinder body 2a of said second member 2
By shifting the positions of the legs 1b and 2b and fitting them together, the annular body 1a is vertically sandwiched between the cylindrical body 2a and the holding plate 3, and both the members 1 and 2 are fitted. A burner 4 is arranged in the ring body 1a, a nozzle 5 is arranged in the cylinder body 2a, and a guide is inclined at the lower peripheral edge of the cylinder body 2a. A circular mouth frame outer periphery of a case 9 that houses a cartridge cylinder 11 having a locking part having a groove 7 and an engaging step part 7a formed in the rising depth thereof, and a supply port that is crimped and connected to the nozzle 5. A device for attaching and detaching a cartridge cylinder in a portable stove, characterized in that a protrusion 10 is provided on the holder, and the protrusion 10 is rotatably attached along the guide groove 7. (2) The cartridge cylinder attachment/detachment device for a portable stove according to claim (1), wherein the case 9 is comprised of a framework structure through which water can freely pass.