JP2000106003A - torch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To burn a liquefied fuel like a gas lighter without applying pressurizing air to the liquefied fuel by installing a liquefied gas guiding member to guide the liquefied fuel spouting from a jetting nozzle part toward the side of a cylindrical body on the jetting nozzle part side of the cylindrical body to store a guide tube to guide the liquefied fuel and the jetting nozzle part. SOLUTION: Gas flow outlets 62, a closing member 75 and windshield members 79, 81 which constitute a liquefied gas guiding member are formed at a position above a jetting nozzle part 52 of a cylindrical body 60. When a valve is opened by operating a needle shaft, a liquefied fuel in a fuel container is jetted in a liquid state from the jetting nozzle part 52 through a guide tube 39, and thereafter hits the closing member 75 and a closing and retaining member 70 which close an opening part 63 located above to be reversed, and is gasified while being released from the gas flow outlets 62. When the liquefied gas is ignited with an ignitor such as a lighter or the like, it is formed into a combustion flame. The combustion flame spreads along the windshield members 79, 81 and a windshield part 78 while restraining wind pressure, and goes out upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torch using liquefied fuel, and more particularly, to a torch capable of using a combustion flame obtained by vaporizing liquefied fuel and burning it, for example, for a torch relay. Things.

[0002]

2. Description of the Related Art Torches for torch relays are known as torches (torches) held by torch runners in, for example, the Olympic Games and the national polity. The torch for a torch relay is not limited to the above-mentioned competitions, but is used for a daytime or nighttime torch at a general athletic meet, a game or an event venue.

[0003] Conventionally, as a torch for a torch relay, there has been a torch using a powdery or solid flammable as a combustor (Japanese Utility Model Laid-Open No. 2-141901). However, in this torch for torch relays, combustion cannot be interrupted once ignited. Therefore, there is a problem that the combustion flame cannot be maintained for a predetermined time depending on the use condition, or the combustion cannot be interrupted and restarted halfway. .

[0004] In view of the above, a torch having a combustion device in which a liquefied gas is accommodated in a container and the container is accommodated in a cylindrical body in place of such a powdery or solid flame medicine as a burning body has begun to be developed. .

[0005] These are presumed to apply the principles of oil burning appliances, oil burners, gas lighters and the like. As this conventional oil burning appliance or oil burner, for example, JP-A-63-09640 is used.
Japanese Unexamined Patent Application Publication No. 9-69, and Japanese Unexamined Patent Application Publication No. 64-067514 are known.

[0006] These have a pressurizer in the cylinder, kerosene, L
A liquid (liquefied) fuel such as P gas is accommodated in an oil tank (container), and a conduit connected to the container is formed in a coil-shaped vaporizing tube near the opening of the cylindrical body. U-turn, and the injection nozzle at the end of this conduit is configured to be directed to the vaporizing pipe again, and while the oil fuel in the container passes through the vaporizing pipe from the conduit, the oil fuel is vaporized. The combustion flame of the vaporized gas from the injection nozzle heats the vaporization tube and continuously and reliably vaporizes the oil fuel.

[0007]

However, since these use a pressurized air to inject the combustion flame at a considerable momentum, they travel while holding the cylinder by hand while shaking the combustion flame. And it was not possible to obtain a combustion flame to be used appreciably at events and the like.

Therefore, a conventional oil burning appliance or oil burner cannot be used as a torch for a torch relay. The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a torch that can be burned similarly to a gas lighter without adding pressurized air to liquefied fuel. is there.

[0009]

According to a first aspect of the present invention, there is provided a torch having a fuel container filled with liquefied fuel, a fuel opening / closing valve mechanism communicating with the fuel container, and a fuel opening / closing valve mechanism communicating with the fuel container. A conduit that guides the liquefied fuel when the valve is opened, an ejection nozzle portion that communicates with the conduit and ejects the liquefied fuel, a cylinder that houses the conduit and the ejection nozzle portion, and the ejection nozzle portion side of the cylinder And a liquefied gas guide member for guiding the liquefied fuel ejected from the ejection nozzle portion toward the side of the cylindrical body.

According to a second aspect of the present invention, in the torch of the first aspect, the liquefied gas guide member is an opening located above the ejection nozzle portion disposed on one side in the axial direction of the cylindrical body. And a closing member having a windshield bulging in the radial direction of the cylindrical body, and a gas outlet provided on a side wall of the cylindrical body located between the closing member and the ejection nozzle portion. It is characterized by having been done.

According to a third aspect of the present invention, in the torch according to the second aspect, the liquefied gas guide member has a smaller diameter than the windshield portion between the gas outlets in the axial direction of the cylindrical body. Is attached.

According to a fourth aspect of the present invention, in the torch according to the first aspect, the liquefied gas guide member is attached to a side of the jet nozzle portion which is disposed on one side in an axial length direction of the cylindrical body. A closing member for closing an upper opening of the cylindrical member, wherein the cylindrical member is provided with a gas outlet on a side wall between the closing member and the ejection nozzle portion.

According to a fifth aspect of the present invention, in the torch according to the fourth aspect, the liquefied gas guide member has a smaller diameter than the windshield portion between the gas outlets in the axial direction of the cylindrical member. The member is attached.

According to a sixth aspect of the present invention, in the torch according to the first aspect, the conduit is made of a stainless steel pipe having an inner diameter of 0.5 mm. The torch according to claim 7 is characterized in that, in the torch according to claim 1, the ejection nozzle portion has a diameter of 0.4 mm.

The torch according to an eighth aspect of the present invention is the torch according to the seventh aspect, wherein the ejection nozzle portion has a plurality of ejection ports. 10. A torch according to claim 9, wherein the fuel container is filled with a liquefied fuel, a fuel on-off valve communicates with the fuel container, and a conduit communicates with the fuel on-off valve and guides the liquefied fuel when the fuel on-off valve is opened. A jet nozzle portion that communicates with the conduit and ejects the liquefied fuel, a cylinder that houses the conduit and the jet nozzle portion, and an upper portion of the jet nozzle portion that is disposed on one axial side of the cylinder. And a gas outlet located at

According to a tenth aspect of the present invention, in the torch according to the ninth aspect, the fuel container is configured such that a base having a siphon portion in an opening is fitted therein, and the siphon portion is disposed up to a bottom portion. It is characterized by being.

In the torch according to the eleventh aspect, in the torch according to the ninth aspect, the fuel on-off valve communicates with a container mounting portion for fitting the base portion mounted on the fuel container and the container mounting portion. A fuel introduction passage, a needle valve portion communicating with the fuel introduction passage, a needle shaft screwed to the needle valve portion, a fuel outlet passage communicating with the needle valve portion, and a fuel outlet passage communicating with the fuel outlet passage. And a conduit mounting part for mounting the conduit.

According to a twelfth aspect of the present invention, there is provided a torch comprising: a fuel container filled with liquefied fuel; a fuel on-off valve communicating with the fuel container; A conduit for guiding, an ejection nozzle portion communicating with the conduit and ejecting the liquefied fuel, a cylinder housing the conduit and the ejection nozzle portion, and a cylinder disposed on the ejection nozzle portion side of the cylinder, and A liquefied gas guide member for guiding the liquefied fuel ejected from the ejection nozzle portion toward the side of the cylindrical body.

(Operation) In the torch according to the first aspect, the liquefied fuel in the fuel container is discharged in a liquid state by the operation of the fuel opening / closing valve mechanism communicating with the fuel container, and is guided from the conduit in the cylinder to the ejection nozzle portion. . Then, after jetting from the jet nozzle portion, the liquefied gas guide member located above
It is vaporized while being discharged from the side of the cylinder, and this vaporized gas is ignited by an igniter to become a combustion flame.

In the torch according to the second aspect, after being ejected from the ejection nozzle portion, the torch hits a closing portion that closes an opening located above and inverts, and is vaporized while being discharged from the gas outlet.
It becomes a burning flame.

At this time, the combustion flame released from each of the gas outlets spreads out along the windshield while suppressing the wind pressure and exits upward. Further, even if the liquefied fuel particles released from the ejection nozzle portion are released (liquid droplets) without being partially vaporized, all of the reversing combustion flame hits the heated closed portion and forms a combustion flame. .

In the torch according to the third aspect, in addition to the torch according to the second aspect, the windshield member below the windshield portion can spread the combustion flame discharged from the gas outlet upward while suppressing the wind pressure. .

In the torch according to the fourth aspect, the liquefied gas guide member is attached to the cylindrical body. Then, the combustion flame can be released similarly to the torch of the first aspect.

In the torch according to the fifth aspect, in addition to the torch according to the fourth aspect, a combustion flame can be discharged similarly to the torch according to the third aspect. In the torch according to the sixth aspect, the conduit in the cylinder can be kept robust and can limit the maximum fuel discharge amount when the liquefied fuel in the fuel container is fully opened.

In the torch according to the seventh aspect, the liquefied fuel passing through the conduit is atomized (particulates) from the nozzle hole.
It gushes out. In the torch according to claim 8,
From the plurality of nozzle holes, the liquefied fuel that has passed through the conduit spreads and sprays in the form of mist (fine particles).

In the torch according to the ninth aspect, the liquefied fuel in the fuel container is discharged in a liquid state by the operation of the fuel on-off valve communicating with the fuel container, and is guided from the conduit in the cylinder to the ejection nozzle portion. Then, after the gas is ejected from the ejection nozzle portion, the gas is vaporized, and the vaporized gas is ignited by the igniter and becomes combustion flame.

The combustion flame is discharged from an outlet located above the jet nozzle. In the torch according to the tenth aspect, the fuel container can be attached by screwing the base to the fuel on-off valve. The liquefied fuel can be discharged from the bottom of the fuel container to the conduit through the siphon connected to the base.

[0028] In the torch according to the eleventh aspect, the fuel container is attached to the on-off valve with the valve opened, and the liquefied fuel is sent to the ejection nozzle portion by the operation of the needle shaft. In the torch according to the twelfth aspect, the liquefied fuel in the fuel container is discharged in a liquid state by the operation of the fuel on-off valve communicating with the fuel container, and is guided from the conduit in the cylinder to the ejection nozzle portion. Then, after the gas is ejected from the ejection nozzle portion, the gas is vaporized, and the vaporized gas is ignited by the igniter and becomes combustion flame.

This combustion flame is released from the side of the cylinder by the liquefied gas guide member located above the jet nozzle.

[0030]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a torch according to the present embodiment (corresponding to claims 1 to 3, and claims 6 to 12).

The fuel container 1 has a base 5 having an opening 2 and a siphon 4 attached thereto. The siphon section 4 is inserted up to the vicinity of the bottom 3 of the fuel container 1. The base 5 is provided with an opening / closing valve device having a spring that opens with a load of about 1 kg inside similarly to a known fuel container (for example, a gas lighter cylinder). A male screw 6 is formed on the outer periphery of the base 5.

The fuel container 1 is accommodated in a recess 9 of a holder 7 having a handle 8. In this embodiment, the holder 7 is made of resin and integrally formed, but may be made of wood.

The fuel container 1 is attached to the on-off valve 10 by screwing a male screw 6 into the container mounting portion 11 of the on-off valve 10 via a seal member 12. This on-off valve 1
Reference numeral 0 is attached to the inside of the lower end of the stainless steel cylinder 60. The cylinder 60 has a gas outlet 62 at the upper part and a needle shaft 1 of the on-off valve 10 at the lower part as described later.
5 is provided with a through hole 61.

The on-off valve 10 has a container mounting portion 11 at one end of an on-off valve main body 10a made of an aluminum cylindrical body, and a conduit mounting portion 17 at the other end. A fuel introduction passage 13 communicating with the container attachment portion 11, a needle valve portion 14 communicating with the fuel introduction passage 13, and a threaded engagement with the needle valve portion 14 are provided between the container attachment portion 11 and the conduit attachment portion 17. And a fuel outlet passage 16 communicating with the needle valve portion 14.

A conduit mounting portion 17 communicates with the fuel outlet passage 16. The fuel introduction passage 13 is a passage that guides the liquefied fuel discharged from the base 5 that is screwed into the container attachment portion 11 and that is opened. The fuel introduction passage 13 communicates with the passage hole 18 of the needle valve portion 14 at an intersection angle of about 80 degrees.

The needle valve portion 14 has a passage hole 18 and a medium-diameter passage 19 connected to the passage hole 18 through an enlarged diameter portion 20.
And a large-diameter passage 21 connected to the medium-diameter passage 19 via an enlarged-diameter portion 22. The large-diameter passage 21 is open to the through hole 61 of the cylinder 60 via the side wall of the on-off valve 10.

A needle shaft 15 is screwed into the needle valve portion 14. Needle shaft 15
A tip portion 23 having a smaller diameter than the passage hole 18, a cone-shaped closing portion 24 connected to the tip portion 23, and a shaft portion 25a connected to the closing portion 24 and having a seal member 26 arranged on the outer periphery.
And a large-diameter portion 27 having a male screw portion 29 connected to the shaft portion 25a and screwed to a female screw portion 28 provided in the large-diameter passage 21, and attached to a shaft portion 25b behind the large-diameter portion 27. And a head 30 formed.

The shaft portion 25b behind the large diameter portion 27 of the needle shaft 15 slides inside a stopper metal fitting 31 for adjusting the gas amount and preventing the gas from falling off. The stopper metal fitting 31 for preventing falling off is provided with a large-diameter passage 2 on the outer periphery.
1. A cylindrical body 32 having a male screw part 33 screwed into the female screw part 28 provided in
2 and a head 34 integrally attached thereto.

The fuel outlet passage 16 communicates with a middle diameter passage 19 of the needle valve portion 14. The conduit mounting portion 17 connected to the fuel outlet passage 16 is formed by an opening having a diameter much larger than that of the fuel outlet passage 16. A female screw 35 is provided on a wall surface of the conduit mounting portion 17.

A lower connecting member 36 having a male screw 37 screwed to the female screw 35 is mounted on the conduit mounting portion 17. The lower connecting member 36 is provided with a through hole 38 through which a conduit 39 is inserted. This conduit 39
In this embodiment, a stainless steel pipe having a hole diameter of 0.5 mm is used.

The other end of the conduit 39 is connected to the upper connecting member 4
1 is attached. The upper connecting member 41 has a male screw 43 screwed into the female screw 46 of the mounting portion 45 of the upper holding member 44, and has a through hole 42 through which the conduit 39 is inserted. The distal end of the conduit 39 is flush with the through hole 42.

The upper holding member 44 is provided with a mounting portion 45 for the upper connecting member 41 at one end of an upper holding member body 44a made of an aluminum columnar body, and a mounting portion 47 for the ejection nozzle portion 52 at the other end. ing.

The mounting portion 45 of the upper connecting member 41 and the mounting portion 47 of the ejection nozzle portion 52 communicate with each other by a passage 48 having the same diameter as the outer diameter of the conduit 39. Upper connector 4
The bottom side of the first mounting portion 45 has a cone shape, and a cone-shaped space portion 49 is formed between the mounting portion 45 and the passage 48.

The bottom side of the mounting portion 47 of the ejection nozzle portion 52 has a cone shape, and a space 50 having a cone shape is formed between the ejection nozzle portion 52 and the passage 48. The ejection nozzle portion 52 is made of brass, has a male screw 53 screwed into the female screw 51 provided on the mounting portion 47, and has a passage 54 for guiding liquefied fuel.
Is provided.

In the upper part of the passage 54, five jet ports 5
5 are provided. The jet port 55 is formed with an extremely small diameter hole so that the liquefied fuel becomes a mist. In the present embodiment, it is 0.4 mmφ. The choice of this diameter is 0.
Among the tests performed at 2 mmφ to 0.5 mmφ, it is the best one that forms a mist and does not clog.

One jetting port 55 may be provided at the center of the jetting nozzle section 52, or several jetting ports may be provided at the center hole and the periphery thereof. The ejection nozzle portion 52 is attached inside the upper end portion of the cylindrical body 60.

A plurality of gas outlets 62 having a diameter of 5 mmφ are staggered in the cylinder 60 above the jet nozzle 52.
It is drilled across the steps. In the present embodiment, the uppermost gas outlet 62 has a distance from the upper end of the edge 64 to the center of 15 mm, and the distance from the center of the uppermost gas outlet 62 to the center of the next gas outlet 62. The distance from the center of the gas outlet 62 in the next stage to the center of the gas outlet 62 in the lowermost stage is 10 mm.

The opening 63 at the upper end of the cylinder 60 is
It is curled inward to form an annular edge 64. A stainless disk-shaped closing member 75 having an outer diameter of 60 mmφ is attached to the opening 63. The closing member 75 is attached by disposing a disk-shaped closing holding member 70 having an annular step 71 abutting against the edge 64 and having a diameter about 0.4 mm smaller than the inner diameter of the cylindrical body 60. A stainless disk-shaped closing member 75 made about 30 mm in diameter larger than the outer diameter of the body 60 is disposed outside, and the closing holding member 70 and a female screw portion provided at the center of the closing member 75 are respectively provided. It is fixed by screwing a screw 77 from the closing member 75 side.

An annular portion of the closing member 75 protruding from the outer periphery of the cylindrical body 60 forms a windshield portion 78. Further, a windshield member 79 having an outer diameter of 55 mmφ smaller than the windshield portion 78 is attached to the cylindrical body 60 between the gas outlet 62 on the closing member 75 side and the gas outlet 62 at the next stage.

The windshield member 79 is provided around an annular body 80 attached to the outer periphery of the cylindrical body 60. The annular body 80 is fixed to the cylinder 60 by spot welding, arc welding, laser welding, or the like.

Further, between the gas outlet 62 below the windshield member 79 and the gas outlet 62 at the lowermost stage, a windshield member 50 having an outer diameter of 50 mmφ smaller than the windshield member portion 79 is provided.
1 is attached.

The windshield member 81 is provided around an annular body 82 attached to the outer periphery of the cylindrical body 60. The annular body 82 is fixed to the cylinder 60 by spot welding, arc welding, laser welding, or the like.

In the present embodiment, the gas outlet 6 provided at a position above the injection nozzle 52 of the cylinder 60 is provided.
2. The closing member 75 and the windshield members 79 and 81 constitute a liquefied gas guide member.

The operation of the present embodiment configured as described above will be described. First, the lower connecting member 36 is placed above and below the conduit 39.
And the upper side connection tool 41 is attached. At this time, conduit 3
An adhesive is applied to the outer peripheries of both end portions of No. 9 and fixed to the through holes 38 and 42 respectively.

Next, the upper connecting member 41 is attached to the upper holding member 44 to which the ejection nozzle portion 52 is attached. Next, the lower connecting member 36 is attached to the on-off valve 10 from which the needle shaft 15 has been removed.

Next, the windshield member 81, the windshield member 79, the closing holding member 70, and the cylindrical body 60 to which the closing member 75 is attached.
Over these. At this time, the position of the through hole 61 of the cylindrical body 60 is made to coincide with the needle valve portion 14.

Next, the stopper metal fitting 31 is attached to the needle valve portion 14. Subsequently, the needle shaft 15 is attached to the needle valve unit 14. At this time, the needle shaft 15 is pushed to the deepest part. That is, the closing portion 24 abuts on the opening end of the passage hole 18 to block the flow path.

Next, the base 5 of the fuel container 1 is connected to the on-off valve 10.
Is screwed into the mounting portion 11. At the stage of preparing the fuel container 1, a liquefied fuel such as LPG is filled inside using a base 5 having a siphon section 4 instead of a normal base.

Next, the fuel container 1 is accommodated in the recess 9 of the holder 7 having the handle 8. Thus, the torch shown in FIG. 1 can be assembled. Next, by operating the needle shaft 15 to separate the closing hole portion 24 from the opening end of the passage hole 18 to open the valve, the liquefied fuel in the fuel container 1 is in a liquid state via the conduit 39 and the injection nozzle portion 52 After squirting from the gas outlet, it hits the closing member 75 and the closing holding member 70 that close the opening 63 located above and inverts and evaporates while being discharged from the gas outlet 62.

When the vaporized gas is ignited by an igniter such as a lighter (not shown), it becomes a combustion flame. At this time, the combustion flame released from each gas outlet 62 is supplied to the windshield members 79 and 81.
And it spreads out along the windshield part 78 while suppressing wind pressure, and comes out upward.

Even if the atomized particles emitted from the ejection nozzle portion 52 are released (liquid droplets) without being partially vaporized, the combustion flame that hits the heated closing member 75 and the closing holding member 70 and reverses. All of them evaporate to form a combustion flame.

According to the torch according to the present embodiment configured as described above, the following effects can be obtained. The liquefied fuel in the fuel container 1 can be reliably vaporized in a liquid state via the conduit 39 to form a combustion flame.

The combustion flame does not blow out even with a relatively strong wind. Even in bright places such as the daytime when the sun is out, the visibility of the burning flame is good. In addition, the visibility is good even when the combustion flame flies due to the wind pressure.

It is safe to turn the torch upside down during combustion, only the combustion flame is reduced. The fuel can be discharged from the fuel container 1 to the conduit 39 in a liquid state, and the combustion flame can be adjusted (adjusted). Further, the fuel capacity according to the combustion time can be selected.

Further, since the closing member (windbreak portion 78) 75 and the windshield members 79 and 81 are formed with the smaller outer diameter in order from the closing member 75, not only the outer diameter design is excellent, but also the combustion flame is prevented. There is also an effect that the formation looks like a Y shape as shown in FIG.

This further eliminates the risk that the combustion flame withstands wind pressure such as wind and blows out. Also, the windshield member 79,
Since the annular bodies 80 and 82 of 81 are also heated, the auxiliary effect of vaporization and combustion can be obtained.

In the present embodiment, the combustion flame has a flame diameter of 13c.
m, flame length 20 cm, thick flame and good visibility (primary air hardly enters from gas outlet, so flame is red due to incomplete combustion).

On the other hand, in a conventional torch without a closing member,
It has a flame diameter of 5 cm and a flame length of 30 cm, looks elongated, has poor appearance, and has a problem in visibility.

In this embodiment, the case where the on-off valve 10 is used has been described. However, the present invention is not limited to this, and any liquid gas in the fuel container 1 can be ejected in a liquid state. An opening / closing valve mechanism may be used.

Further, in the above embodiment, the case where the closing member (windshield portion 78) 75 and the windshield members 79 and 81 are provided has been described, but only the closing member (windshield portion 78) 75 may be provided. However, when the windshield members 79 and 81 were provided, the wind resistance was improved.

Further, the outer diameter of the closing member (windshield portion 78) 75 is sequentially reduced from the outer diameter, but the closing member (windshield portion 78) 75 and the windshield members 79 and 81 may have the same outer shape.

Further, in the above embodiment, the case where the closing member (windshield portion 78) 75 and the windshield members 79 and 81 are provided has been described. However, the flame may be emitted from the opening 63.

In the above embodiment, the case where the fuel container 1 is accommodated in the recess 9 of the holder 7 has been described.
It is also possible to communicate with a large container via a siphon unit and use it as a torch for fixing in shows, attractions and the like.

That is, when a torch is used and a combustion flame is required for a long time when the torch is used instead of the torch for the torch relay which is run by hand, a large-capacity fuel cylinder is installed separately from the torch. It is also possible.

In this case, it is sufficient to provide a relay hose that fits between the cap screw part of the cylinder having the cap part together with the siphon part and the screw part of the on-off valve of the torch. FIG. 7 shows a torch according to another embodiment of the present invention (corresponding to claims 4 and 5).

According to this embodiment, the gas outlet 62 and the curl portion are not provided at the upper end of the cylindrical body 60A as in the above-described embodiment, and the closing member (the windshield 78A) is provided at the upper end of the cylindrical body 60A. A liquefied gas guide member 90 integrally provided with 75A, windshield members 79A and 81A and a gas flow port 62A is attached and fixed by spot welding, arc welding, laser welding or the like.

The liquefied gas guide member 90 is provided with a cylindrical body 60A.
A cylindrical member 91 attached to the ejection nozzle portion 52 disposed on one side in the axial direction of the cylinder member, and an upper opening 9 of the cylindrical member 91.
The cylinder member 91 is provided with a gas outlet 62A on a side wall between the closing member 75A and the ejection nozzle portion 52.

In this embodiment, the same effects as in the above embodiment can be obtained. Also in this embodiment,
The windshield members 79A and 81A can be omitted.

[0079]

As described above, in the present invention, the formation of the combustion flame becomes large, and the visibility is good even in a bright place in the daytime.

Further, the wind resistance can be improved at the closed portion and the windshield portion against wind pressure such as wind. In addition, even if the liquefied fuel in the fuel container comes out of the jet nozzle without being vaporized and remains in a liquid state, the liquefied fuel strikes the closing portion and the windshield member and reliably vaporizes and burns to form a flame.

Further, since the siphon portion is provided to the vicinity of the bottom in the fuel container, even if the torch is inverted during combustion, only the gas is emitted, so that the combustion flame is small but safe. Further, since the on-off valve mechanism for interrupting the release from the fuel container to the conduit is provided, it can be interrupted even during use, and the combustion flame can be obtained again.

Further, since the base having the opening / closing valve mechanism and the siphon part is fitted exclusively, the range of selection of the fuel container (cylinder) is widened.

[Brief description of the drawings]

FIG. 1 is a side view showing a torch according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing a relationship between a cylinder, a conduit, a fuel container, and an on-off valve on the lower side of the cylinder of the torch of FIG.

FIG. 3 is an enlarged cross-sectional view showing a relationship between a tubular body, a conduit, a gas outlet, a closing member, and a windshield on the upper side of the tubular body of the torch of FIG.

FIG. 4 is a plan view of an injection nozzle used in the torch of FIG. 1;

FIG. 5 is a partially cutaway side view of the injection nozzle portion of FIG. 4;

FIG. 6 is an explanatory diagram showing a state of a combustion flame released from the torch of FIG. 1;

FIG. 7 is a side view showing a torch according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fuel container 4 Siphon part 5 Base part 10 On-off valve 14 Needle valve part 15 Needle shaft 39 Conduit 41 Upper side connection tool 44 Upper holding member 52 Spout nozzle part 55 Spout nozzle 60 Cylindrical body 63 Opening 75 Closure member 78 Windshield part 79, 81 Windshield 90 Liquefied gas guide

Continued on the front page (72) Inventor Hitoshi Taniguchi 3-21-8 Nishishinbashi, Minato-ku, Tokyo Inside Iwatani Industry Co., Ltd. Tokyo Head Office (72) Inventor Takeshi Igarashi 2-37-16 Maenocho, Itabashi-ku, Tokyo (72) Inventor Hiroshi Ogawa Inventor Hiroshi Ogawa 2-1, Nishisaka-mura, Nishigo-mura, Nishishirakawa-gun, Fukushima Prefecture Nippon Koki Co., Ltd.

Claims (12)

[Claims] A fuel container filled with liquefied fuel, a fuel on-off valve mechanism communicating with the fuel container, a conduit communicating with the fuel container and guiding the liquefied fuel when the fuel on-off valve mechanism is opened; An ejection nozzle portion that communicates with the conduit and ejects the liquefied fuel; a cylinder housing the conduit and the ejection nozzle portion; and a cylinder disposed on the ejection nozzle portion side of the cylinder and ejected from the ejection nozzle portion. A liquefied gas guide member for guiding the liquefied fuel to the side of the cylinder. 2. The torch according to claim 1, wherein the liquefied gas guide member closes an opening located above the ejection nozzle portion disposed on one side in an axial length direction of the cylindrical body, and further includes a cylinder. A closing member having a windshield bulging in the radial direction of the body, and a gas outlet provided on a side wall of the cylindrical body located between the closing member and the ejection nozzle portion. And a torch. 3. The torch according to claim 2, wherein the liquefied gas guide member has a windshield member smaller in diameter than the windshield portion between the gas outlets in the axial direction of the cylindrical body. A torch characterized by: 4. The torch according to claim 1, wherein the liquefied gas guide member is a tubular member attached to the ejection nozzle portion disposed on one side in the axial direction of the tubular body, and an upper portion of the tubular member. A torch, comprising: a closing member that closes an opening, wherein the cylindrical member is provided with a gas outlet on a side wall between the closing member and the ejection nozzle portion. 5. The torch according to claim 4, wherein the liquefied gas guide member is provided between the gas outlets in the axial direction of the cylindrical member.
A torch, wherein a windshield member smaller in diameter than the windshield portion is attached. 6. The torch according to claim 1, wherein the conduit is made of a stainless steel pipe having an inner diameter of 0.5 mm. 7. The torch according to claim 1, wherein the ejection nozzle has a diameter of 0.4 mm. 8. The torch according to claim 7, wherein the ejection nozzle portion has a plurality of ejection ports. 9. A fuel container filled with liquefied fuel, a fuel on-off valve communicating with the fuel container, a conduit communicating with the fuel on-off valve and guiding the liquefied fuel when the fuel on-off valve is opened, An ejection nozzle portion that communicates with the conduit and ejects the liquefied fuel; a cylinder housing the conduit and the ejection nozzle portion; and a cylinder located on one side in the axial direction of the cylinder and located above the ejection nozzle portion. A torch comprising a gas outlet. 10. The torch according to claim 9, wherein said fuel container is fitted with a base having a siphon portion in an opening portion, and said siphon portion is disposed up to a bottom portion. torch. 11. The torch according to claim 9, wherein the fuel on-off valve includes: a container mounting portion for fitting the base portion mounted on the fuel container; a fuel introduction passage communicating with the container mounting portion; A needle valve portion communicating with the fuel introduction passage, a needle shaft screwed into the needle valve portion, a fuel outlet passage communicating with the needle valve portion, and a conduit mounting portion communicating with the fuel outlet passage and attaching the conduit A torch characterized by comprising: 12. A fuel container filled with liquefied fuel, a fuel on-off valve communicating with the fuel container, a conduit communicating with the fuel on-off valve and guiding the liquefied fuel when the fuel on-off valve is opened, An ejection nozzle portion that communicates with the conduit and ejects the liquefied fuel; a cylinder housing the conduit and the ejection nozzle portion; and a cylinder disposed on the ejection nozzle portion side of the cylinder and ejected from the ejection nozzle portion. A liquefied gas guide member for guiding the liquefied fuel toward the side of the cylindrical body.