JPH0729376Y2 - Portable gas stove - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable gas stove used for so-called outdoor activities such as mountain climbing, hiking and camping.

[0002]

2. Description of the Related Art Conventionally, portable gas stoves used outdoors are often of a type in which a burner unit is directly connected to a gas cartridge storing liquefied gas for portability and easy handling. Came. In this type of portable gas stove, the fuel gas is taken out from the gas cartridge in a gas state and burned, but as the gas content is consumed, the liquid gas is vaporized in the cartridge and the consumed portion is replenished.

[0003]

However, in this type of gas cartridge, since the heat of vaporization is taken when the liquid gas vaporizes, the temperature inside the gas cartridge lowers and the saturated vapor pressure inside the cartridge lowers. Therefore, there is a problem that the higher the consumption speed is, the vaporization speed cannot catch up and the fire power is reduced. This phenomenon occurs remarkably when used in winter or at high altitudes.

The present invention has been made in view of these points, and it is an object of the present invention to provide a gas stove which is excellent in portability and which can obtain sufficient heating power in any usage condition. To aim.

[0005]

In order to achieve the above-mentioned object, the present invention provides a mixing pipe extending downward from the bottom wall of a burner head, and a nozzle holder is screwed to the lower end of the mixing pipe. A burner unit is configured, and a valve unit that directly connects a gas cartridge that stores liquefied gas in an inverted posture is connected to a nozzle holder of the burner unit so that they can communicate with each other, and the burner unit is supported by at least three legs Then, fix one of the leg members to the nozzle holder and the rest of the leg members to different leg support holders, and tighten each leg support holder together between the mixing tube and the burner unit nozzle holder. It is characterized in that the fuel passage is formed inside the leg member which is arranged so as to be possible and is fixed to the nozzle holder.

[0006]

In the present invention, the leg support holder is arranged so that it can be tightened together between the mixing pipe extending downward from the bottom wall of the burner head and the nozzle holder screwed to the lower end of the mixing pipe. , Since at least one of the three leg members is fixed to the nozzle holder and the remaining leg members are individually fixed to the leg support holder, loosening the screwed state of the burner unit and the mixing tube As a result, the leg support holder can be rotationally displaced, and the relative posture of the leg member fixed to the nozzle holder and the other leg member can be changed. Further, by firmly tightening the nozzle holder and the mixing tube, each leg support holder is fixed together and fixed in a state where the relative posture is maintained. As a result, by collecting the legs when carrying, the burner unit can be stably supported while being compactly assembled.

Further, the fuel passage is formed inside the leg member fixed to the nozzle holder, and the valve unit for directly connecting the liquefied gas cartridge in an inverted state is connected through the leg member having the fuel passage. Since the fuel taken out in liquid form is vaporized by the thermal energy supplied through the leg members while passing through the fuel passage, sufficient vaporization energy can be secured, and even if the consumption speed is high, it is high. The output can be maintained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention. FIG. 1 is a partially cutaway front view of a use state, and FIG. 2 is an exploded perspective view. In this portable gas stove, the burner unit (1) and the valve unit (2) are separately arranged and the burner unit (1) is supported by three leg members (3).

The burner unit (1) includes a burner head (4) formed in an umbrella shape, a mixing pipe (5) drawn downward from a bottom wall of the burner head (4), and a lower end portion of the mixing pipe (5). It is composed of a nozzle holder (6) which is screwed to the. The holder (8) for the ignition electrode (7) is arranged in contact with the bottom wall of the burner head (4).

The valve unit (2) has a gas cartridge connection port (9) formed on the upper surface and a valve opening / closing operation knob (10) arranged on one side surface. The gas cartridge (11) has a valve unit (2). It is designed to be connected to the gas cartridge connection port (9) in the inverted state. Further, the operating portion (12) of the ignition device is fixed to the valve unit (2).

The leg member (3) is a single bent pipe body.
(3a) and two rods (3b) and (3c),
The leg member (3a) formed of a pipe is fixed to the nozzle holder (6), and the inside of the pipe leg member (3a) is connected to the fuel gas passage.
The electrode holder (8) is supported on the tubular leg member (3a) while being formed on the (13). The leg members (3b) formed of rods are fixed to the leg support holders (14) formed in a ring shape. The leg support holder (14) is arranged between the mixing pipe (5) of the burner unit (1) and the nozzle holder (6) in a relatively rotatable state, and is connected to the mixing pipe (5) and the nozzle holder (6). When is firmly tightened, both members are clamped and fixed.

Further, after each leg member (3) is once raised to a position higher than the upper end surface of the burner unit (1),
Bend horizontally to form the horizontal part (15), then the horizontal part (15)
It is formed by obliquely downwardly folding back from the outer end portion and horizontally folding the lower end portion of the folded back portion outward. Then, the lower end horizontal portion is formed in the ground contact portion, and the upper end horizontal portion is formed in Gotoku.

A hose (1) led out from the valve unit (2)
6) is connected to the pipe leg member (3a), and the fuel sent out from the valve unit (2) receives the hose (16) and the pipe leg member.
Nozzle holder (6) through fuel gas passage (13) in (3a)
To be supplied to. In addition, the lead wire (17) is embedded in the hose (16), and the ignition electrode (7) supported by the electrode holder (8) and the operating portion of the ignition device held by the valve unit (2) ( 12) is connected with this lead wire (17).

Reference numeral (18) in the drawing is a windshield,
The windshield (18) is formed in the shape of a saucer with a raised peripheral wall, and has an inner diameter hole (at the center of the windshield (18) that can be fitted to the outer peripheral surface at the rising portion of the three leg members (3). 19) is transparently installed. Further, a part of the bottom wall portion and the peripheral wall of the windshield (18) is cut out to be formed in an incorporated portion of the electrode holder (8).

In the portable gas stove thus formed, the leg members (3) are gathered at one place when carrying, thereby reducing the accommodation size and enhancing the portability, and at the time of use, the leg members formed of rods. (3b) is a tube leg member
The burner unit (1) can be stably set by opening the burner unit (1) at a predetermined angle.

Further, in the portable gas stove of this embodiment,
Connect the gas cartridge (11) to the valve unit (2) in an inverted position, and connect the fuel gas to the valve unit (2) with a hose.
(16), since the fuel is supplied to the nozzle holder (6) through the fuel gas passage (13) of the pipe leg member (3a), the fuel in the gas cartridge (11) remains in a liquid state and the hose (16). ), The liquid fuel is gasified by exchanging heat with combustion heat and radiant heat acting on the outside air and the leg member (3a) while flowing through the pipe leg member (3a), and becomes a gas body. Nozzle holder (6)
Will flow into. As a result, a sufficient vaporization rate can be secured even if the gas consumption rate is high.

In the above embodiment, the leg support holder (14) is composed of two pieces, and the leg support holder (14) has two rod-shaped leg members.
The leg support holders (14)
The burner unit (1) is made up of 4
It may be supported by a book or five leg members (13).

[0018]

According to the present invention, the leg support holder can be tightened together between the mixing pipe extending downward from the bottom wall of the burner head and the nozzle holder screwed to the lower end of the mixing pipe. The burner unit and the mixing pipe can be screwed together because one of at least three leg members is fixed to the nozzle holder and the remaining leg members are individually fixed to the leg support holder. By loosening, the leg support holder can be rotationally displaced, and the relative posture of the leg member fixed to the nozzle holder and the other leg member can be changed. Further, by firmly tightening the nozzle holder and the mixing tube, each leg support holder is fixed together and fixed in a state where the relative posture is maintained. As a result, the legs can be gathered together when carried to make them compact, but the burner unit can be stably supported during use.

Further, the fuel passage is formed inside the leg member fixed to the nozzle holder, and the valve unit for directly connecting the liquefied gas cartridge in an inverted state is connected through the leg member having the fuel passage. Since the fuel taken out in liquid form is vaporized by the thermal energy supplied through the leg members while passing through the fuel passage, sufficient vaporization energy can be secured, and even if the consumption speed is high, it is high. The output can be maintained.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a usage state.

FIG. 2 is an exploded perspective view.

[Explanation of symbols]

1 ... Burner unit, 2 ... Valve unit, 3 ... Leg member, 4 ...
Burner head, 5 ... Mixing tube,
6 ... Nozzle holder, 11 ... Gas cartridge,
13 ... Fuel passage, 14 ... Leg support holder.

Claims (2)

[Scope of utility model registration request] 1. A mixing tube (5) from the bottom wall of the burner head (4).
The nozzle holder (6) is screwed onto the lower end of the mixing tube (5) to form a burner unit (1), and the gas cartridge (11) storing the liquefied gas is directly connected in an inverted posture. The valve unit (2) and the nozzle holder (6) of the burner unit (1) are connected in communication, and the burner unit (1) is formed so as to be supported by at least three leg members (3). One of the 3) is fixed to the nozzle holder 6 and the remaining leg members 3 are attached to different leg support holders 1.
4), and each leg support holder (14) was placed between the mixing pipe (5) and the nozzle holder (6) of the burner unit (1) so that they could be tightened together, and fixed to the nozzle holder (6). A portable gas stove having a fuel passage (13) formed inside the leg member (3). 2. The leg members (3) are formed in a shape in which they are once raised upward and then bent downward, and the upper end portion of each leg member (3) is positioned higher than the upper end surface of the burner head (4). The portable gas stove according to claim 1, wherein the upper end portion of each leg member (3) is formed into a virtuous shape by making it.