JP3040300U - Gas lighter - Google Patents

Abstract

(57) [Abstract] [Problem] Bubbles generated in a gas tank due to external vibration or the like,
Air that is shelved in the gas tank 2 when it is laid down horizontally enters through the lower end opening of the annular pipe and causes a kind of root blockage, which causes a flame down phenomenon. A filter or nail stator 5n (details horizontal washer portion 5n ₁₎ under, allowed to attach the annular pipe 6. The annular pipe 6 is made of a synthetic resin material such as polyethylene or a metal material, and the upper end opening is externally fitted to the large diameter portion of the metal rod 5n ₃ constituting the nail-shaped stator 5n, and the lower end opening is formed as described above. Assemble to extend into the gas tank 2. Moreover, guard means 60 for preventing the entry of bubbles and the like is provided on the lower end side of the annular pipe 6. The guard means 60 is made of a porous member such as a filter that allows only liquefied or vaporized gas to pass therethrough, and is press-fitted to close the lower end opening of the annular pipe 6.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an improvement of a lighter (oil lighter, piezo lighter, flint type lighter) in which an annular pipe is hung in the tank, and more specifically, it eliminates the phenomenon of flame down caused by bubbles entering the annular pipe. At the very least, it lies in a gas lighter that makes it easier and more reliable to suck up liquefied gas.

[0002]

[Prior art]

Conventionally, as such a gas lighter, for example, the one disclosed in Japanese Utility Model Publication No. 6-14746 is well known as a conventional example. As shown in FIG. 5, this gas lighter includes a gas tank 2 formed in the lighter main body, a valve 5 mounted on the upper part of the gas tank 2, a horizontal washer portion, and a protrusion on the upper surface of the horizontal washer portion. And a nail-shaped stator 5n fitted to the lower end of the valve 5 via a ring-shaped filter 5o. , A rod-shaped metal rod 5n ₃ whose lower end hangs down into the gas tank is continuously connected, and an annular pipe 6 is attached to the outer peripheral surface of the metal rod 5n ₃ to form a gas flow path. There is.

[0003]

[Problems to be solved by the device]

 However, in the gas lighter of Japanese Utility Model Laid-Open No. 6-14746 described above, air bubbles generated in the gas tank 2 due to external vibration or the like, and the gas lighter inside the gas tank 2 in a state of being horizontally laid down on the desk. Since the air layer that shelves (spreads into a strip) enters through the lower end opening of the annular pipe 6, it becomes a kind of root blockage and causes the phenomenon of flame down, especially when adjusting the flame length during shipping. If such a down phenomenon occurs, even if the flame length is adjusted to 5 to 6 cm, even if the flame length is adjusted, it will be a long flame against the demand of the user when actually using the ignition. That was a concern.

The present invention has been made in view of the above conventional problems, and eliminates the phenomenon of flame down caused by the entry of air bubbles or the like from the annular pipe, and siphons liquefied gas easily and reliably. The purpose is to provide an inexpensive and stable gas lighter.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned conventional problems and achieve the intended purpose, the structure which is the gist of the present invention is a gas tank formed in the lighter body, a valve mounted on the upper part of the gas tank, A gas lighter provided with a filter and / or a nail-shaped stator arranged on the lower end side of a valve, wherein an annular pipe whose lower end side hangs down into the gas tank below the filter or the nail-shaped stator. And a guard means for preventing air bubbles from entering the annular pipe.

The guard means may be a porous member such as a filter that allows only liquefied gas or vaporized gas to pass through.

[0007] Furthermore, a rod-shaped metal rod having a lower end hanging down into the gas tank is integrally connected to the bottom surface of the nail-shaped stator, and a gas flow path is formed on the outer peripheral surface of the metal rod. It is preferable to mount an annular pipe to be formed and to provide a guard means for preventing the invasion of air bubbles in the annular pipe.

In the gas lighter of the present invention constructed as described above, an annular pipe having a lower end hanging down into the gas tank is attached to a lower portion of the filter or the nail-shaped stator, and bubbles or the like are attached to the annular pipe. Even if air bubbles are generated in the gas tank due to provisional law, external vibration, etc., the guard means to prevent the entry of air will cause air to remain in the gas tank when the lighter body is laid down horizontally. Even if it is pulled (spread in strips), these (fine bubbles and air spread in strips) are prevented from entering through the lower end opening of the annular pipe, eliminating a kind of root-down phenomenon of flames It will be possible.

Further, since the guard means is a porous member such as a filter that allows only liquefied or vaporized gas to pass therethrough, the liquefied gas in the gas tank can be passed through the annular pipe without affecting the gas permeation amount at all. Alternatively, only the vaporized gas comes into direct contact with the nail-shaped solid particles.

Further, a rod-shaped metal rod having a lower end hanging down into the gas tank is integrally connected to the bottom surface of the nail-shaped stator, and a gas flow path is formed on the outer peripheral surface of the metal rod. If a ring pipe is attached to form the ring pipe and a guard means is provided to prevent the bubbles from entering the ring pipe, when the ignition operation is performed, only the liquefied gas or vaporized gas in the gas tank is depleted by the negative pressure. In addition to being sucked into the annular pipe in a concentrated manner, it is absorbed by the so-called capillary phenomenon along the pipe (specifically, the hollow area), and the heat in the gas tank is transferred to the nail-shaped stator by heat conduction. Effectively transmits to the metal rod and supplies the heat of vaporization required for vaporizing the liquefied gas to the vaporization chamber and near the valve.

[0011]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, A is a gas lighter according to the present invention. As shown in FIG. 1, the gas lighter A includes a gas tank 2 formed in a lighter body 1 and a tank upper lid 3 which is hermetically integrated above a gas tank 2. I have it.

That is, the gas tank 2 is filled with liquefied gas, and the tank upper lid 3 is integrated with the upper opening thereof by ultrasonic welding or the like to maintain pressure resistance and airtightness therebetween. ing. An ignition mechanism, which will be described later, is mounted on the tank upper lid 3 via an intermediate case 4.

As shown in FIG. 1 or FIG. 3, a bottomed cylindrical fitting recess 3a having an open top is integrally formed in the tank top cover 3, and the bottom of the fitting recess 3a is centered. A through hole 3b communicating with the gas tank 2 is opened. The valve 5 is airtightly screwed into the fitting recess 3a.

The valve 5 includes a nozzle lid 5b having a cylindrical lid shape having an opening 5a on its top end surface and a cylindrical bottomed nozzle bottom plug 5c fitted in the lower opening of the nozzle spiral 5b. A valve chamber 5d is formed in the valve chamber 5d, and a gas jet nozzle 5g is mounted in the valve chamber 5d through an O-ring and a spring so that the upper end of the gas jet nozzle 5g projects outward from the opening 5a of the nozzle spiral 5b. ing.

As shown in an enlarged view in FIG. 3, the gas ejection nozzle 5g has a perforation 5i that communicates with the gas ejection passage 5h in the radial direction of the outer peripheral surface, and the lower end of the gas ejection nozzle 5g is located below the gas ejection passage 5h. A valve rubber 5j fitted in a state where the opening is plugged is provided in a protruding manner, and a tip neck portion of the gas ejection nozzle 5g is operated in a pulling direction via a valve operating lever 9 (see FIG. 1) described later. By doing so, the lower end surface of the valve rubber 5j is assembled so as to open and close the valve port 5k described later.

Further, an O-ring 5m is fitted to the outer peripheral surface of the nozzle bottom plug body 5c via an annular groove, so that the O-ring 5m is shielded from the inner peripheral surface of the fitting recess 3a which contacts the outside. Further, a valve opening 5k is opened on the bottom surface of the nozzle bottom plug 5c, and a nail-shaped stator 5n is loosely fitted in the valve opening 5k.

The nail-shaped stator 5n is integrally molded using an appropriate material such as copper, aluminum, or zinc alloy having good thermal conductivity, and as shown in FIG. a horizontal washer portion 5n ₁ disposed in contact with the upper end of the Jo pipe 6, a vertical nail portion 5n ₂ projecting from the upper surface of the horizontal washer portion 5 n _1, coaxial to the bottom surface of the horizontal washer portion 5n ₁ The rod-shaped metal rod 5n ₃ hung in a circular shape is integrally provided with a cross-shaped cross section, and the horizontal washer portion 5n ₁ has a thickness approximately equal to the length of the vertical nail portion 5n _2. Is formed.

Specifically, a horizontal washer portion 5n ₁ having a diameter of 3 to 4 mm and a thickness of about 0.5 to 2 mm, and a vertical nail portion 5n ₂ having a diameter of 0.8 to ₁ mm and a length of about 1 to 2 mm, Diameter 1.5-2. It is preferable to form it with a metal rod 5n ₃ having a length of 5 mm and a length of about 25 mm, and preferably a diameter of 5n ₂ for a vertical nail portion 5n ₂ having a straight diameter of 0.96 (+0.02) mm and a length of about 1.75 mm. It is preferable to use a horizontal washer portion 5n ₁ having a thickness of 4 mm and a thickness of about 1.85 mm and a metal rod 5n ₃ having a diameter of 1.5 mm and a length of about 25 mm.

As a result, the surface area of the metal portion in the vaporization chamber is expanded to promote effective heat conduction and supply, and it is necessary to use a separate metal heat collecting cylinder (not shown) that has been conventionally used conventionally. Disappears.

The specific dimensions of the above-mentioned nail-shaped stators 5n are based on a conventional size disposable liter, and the size of the lighter (specifically, the capacity of the gas tank), etc. It goes without saying that a nail-shaped stator of an appropriate size can be selected and used depending on the change of.

More specifically, the diameter of the horizontal washer 5n ₁ is preferably close to the inner diameter of the fitting recess 3a (to the extent that it does not hinder the assembly), and the difference is preferably about 0.1 mm. The thickness of the horizontal washer portion 5n ₁ is limited by the depth of the fitting recess 3a, the length of the valve 5 and the screwing positional relationship thereof. It is preferable because the heat conduction efficiency is increased.

Further, the diameter of the vertical nail portion 5n ₂ is preferably close to the inner diameter of the valve opening 5k unless the gas passage is closed, and the difference is preferably about 0.03 to 0.05 mm. Further, it is preferable that the length of the vertical nail portion 5n ₂ is so long that the tip of the vertical nail portion 5n ₂ comes into contact with the valve rubber 5j when the valve is closed and gas leakage does not occur.

The reason is that the wider the space in the valve opening 5k, the more the gas having the same pressure as in the tank 2 is retained (a so-called gas pool is generated), and an excessive flame is generated at the time of ignition. . Therefore, reducing the space to the limit leads to improvement of the ignition rate and stabilization of the flame.

Further, the diameter of the large diameter portion (close to the horizontal washer portion 5n ₁ ) of the metal rod 5n ₃ is such that the annular pipe 6 (specifically, the outer peripheral surface of the pipe 6) mounted on the outer periphery thereof has the through hole. It is pressure-bonded to the inner wall of 3b, and is adjusted in advance to a size capable of preventing the vaporized gas in the gas tank 2 from leaking upward between the inner peripheral surface of the through hole 3 and the outer peripheral surface of the annular pipe 6. It

Further, the diameter of the lower end portion of the metal rod 5n ₃ is formed to be smaller than the inner diameter of the annular pipe 6 used so as not to obstruct the flow path of the liquefied gas.

Furthermore, the length of the metal rod 5n ₃ is well those required to sufficiently inclusion of the same metal rod 5n ₃ by rise due to capillary action of the liquefied gas in the annular pipe 6,如above ku about 25 mm is appropriate.

On the other hand, as shown in FIGS. 2 (B) and ₃ , the outer peripheral surface of the metal rod 5n ₃ is provided with two slits 5n ₄ and 5n ₄ formed through a large diameter portion. Has been done.

The lower ends of the slits 5n ₄ and 5n ₄ are tapered and are opened, and the upper ends thereof are hook-shaped as a whole from the bottom surface of the horizontal washer portion 5n ₁ to the outer peripheral edge thereof. By communicating with each other, an escape port for the liquefied gas sucked into the annular pipe 6 described later is secured, and the outer peripheral surface of the metal rod 5n ₃ does not come into contact with the inner peripheral surface of the annular pipe 6 described below. Has been devised.

In other words, the metal rod 5n ₃ has the main purpose of conducting and supplying the heat of the liquefied gas in the gas tank 2 to the vicinity of the upper valve in order to prevent insufficient supply of the heat of vaporization. If the annular pipe 6 is attached to the surface in a contact state, the vaporizing heat supply action cannot be fully exerted, which is not preferable.

Therefore, both members are assembled in a non-contact state via the large diameter portion to secure the maximum surface area of the metal rod 5n ₃ and also the escape port (flow passage) of the liquefied gas is also provided. We adopted a structure that can be easily formed.

Incidentally, the depth of the slit 5n ₄ is preferably about 0.5 mm in order to avoid the flow passage blockage due to the biting of the annular pipe 6, and the slit 5n ₄ having an excessive width has a depth of the pipe 6 above. The outer peripheral surface impairs the so-called shielding effect of press-fitting the inner peripheral surface of the through hole 3b, which is not preferable, and it is considered that about 0.5 mm is preferable as described above.

In addition, since the metal rod 5n ₃ and the horizontal washer portion 5n ₁ are integrally formed, the nail-shaped stator 5n and the heat collecting tube (not shown) which are separately formed as in the conventional case. Needless to say, the heat conduction efficiency is better and the assembly man-hours are simplified as compared with the case of combining and).

In the figure, 5o is a ring-shaped filter interposed between the nail-shaped stator 5n and the bottom surface of the nozzle bottom plug 5c (see FIG. 3).

Further, an annular pipe 6 is mounted below the nail-shaped stator 5n (specifically, the horizontal washer portion 5n ₁ ) via the metal rod 5 n ₃ . The annular pipe 6 is made of a synthetic resin material such as polyethylene, and the upper end opening is externally fitted to the large diameter portion of the metal rod 5n ₃ and the lower end is assembled so as to extend into the gas tank 2. .

Moreover, guard means 60 is provided on the lower end side of the annular pipe 6 to prevent bubbles and the like from entering. The guard means 60 is made of a porous member such as a filter that allows only liquefied or vaporized gas to pass therethrough, and is press-fitted to close the lower end opening of the annular pipe 6.

The material of the annular pipe 6 is not limited to a synthetic resin material such as polyethylene, but other materials, for example, an annular member or a capillary formed of a metal material having good thermal conductivity such as copper or aluminum. A spiral member, a mesh-like body or a porous body which causes the phenomenon may be used.

On the other hand, as shown in FIG. 1, the ignition mechanism of the gas lighter A has a file that is rotatably supported by a pair of supporting pieces (not shown) integrally formed with the intermediate case 4. It is composed of a wheel 7, a flint 8 mounted under the file wheel 7, and a valve operating lever 9 for operating the gas ejection nozzle 5g in the pulling direction.

The igniting stone 8 is housed in the igniting stone supporting hole 4 a of the intermediate case 4 fitted in the vertical hole 3 c of the tank upper lid 3, and the top surface is pushed by the pushing spring 10 to the file wheel 7. It is applied.

Further, the valve operating lever 9 is provided with a support shaft (not shown) projecting from both side surfaces at the center in the longitudinal direction, and both support shafts are provided with a shaft hole (formed in the pair of support pieces). It is pivotally mounted so as to be vertically swingable by being supported by a shaft (not shown).

The one end of the valve operating lever 9 is fitted into the neck of the gas ejection nozzle 5g through the slit 9a, and the operating piece 11 is connected to the other end. When the operation lever 9 is pushed down, the operation lever 9 swings around the support shaft to move the neck portion of the gas ejection nozzle 5g in the withdrawing direction.

In addition, a downward columnar portion 11a is integrally formed on the lower portion of the operation piece 11 so as to project into and out of the hollow cylindrical hollow portion 3d formed in the tank upper lid 3. There is.

In the gas lighter A of the present invention configured as described above, the file wheel 7 is rotated by the thumb of the hand holding the lighter body 1 and the operation piece 11 of the valve operation lever 9 is pushed down as it is. As a result, the igneous stone 8 is rubbed to generate a spark on the gas ejection nozzle 5g side, and the neck portion of the gas ejection nozzle 5g is operated in the withdrawing direction, so that the lower end surface of the valve gum 5j is the upper surface of the valve opening 3b. And the valve opens, the negative pressure causes the liquefied gas in the gas tank 2 to be sucked into the annular pipe 6, and is also sucked up to the nail-shaped stator 5n through the slits 5n ₄ and 5n ₄ , and After passing through the peripheral surface of the stator 5 n, it reaches the filter 5 o and is vaporized under reduced pressure.

Further, the vaporized gas passes through the filter 5o, passes through the gap between the nail-shaped stator 5n and the valve hole 5k of the nozzle bottom plug body, and further the hole 5i is formed in the radial direction of the gas ejection nozzle 5g. The gas is discharged from the tip of the gas jet nozzle 5g to the inside of the gas jet passage 5h through the passage, and at that moment, the spark is ignited and ignited to produce a flame of a desired length.

[0044] Moreover, nail stator 5n is a horizontal washer portion 5n ₁ disposed in contact with the upper end of the annular pipe 6, a vertical nail portion 5n ₂ projecting from the upper surface of the horizontal washer portion 5n ₁ Since the horizontal washer 5n ₁ has a rod-shaped metal rod 5n ₃ that hangs coaxially on the bottom surface of the horizontal washer 5n ₁ , even if the provisional deadline, the vaporization chamber and the periphery of the valve are molded with plastic, The conductive supply of the vaporization heat required for vaporizing the liquefied gas of the fuel is more effectively promoted than when the conventional nail-shaped stator is used, and the separate metal heat collection conventionally used conventionally. A cylinder (not shown) is unnecessary.

Further, if the annular pipe 6 is fitted to the outer peripheral surface of the rod-shaped metal rod 5n _{3 so} as to form a gas flow path, the liquefied gas promotes so-called capillarity in the pipe. It is necessary for the heat in the gas tank 2 to be effectively transferred to the nail-shaped stator 5n, especially to the metal rod 5n ₃ by heat conduction while being sucked up through the cavity region to vaporize the liquefied gas. The heat of vaporization can be supplied to the vaporization chamber and the vicinity of the valve without waste, and the flame can be stabilized.

In addition, a gas flow path (vaporization heat supply path) is formed which positively connects the nail-shaped stator 5n and the inside of the gas tank 2 through the annular pipe 6 and the slits 5n ₄ , 5n _4. Since the nail-shaped stator 5n and the inside of the gas tank 2 are more reliably communicated with each other, the heat of the liquefied gas filling the gas tank 2 reaches the inside of the vaporization chamber and the vicinity of the valve 5 more effectively, Further, since the liquefied gas in the gas tank 2 can directly contact the nail-shaped stator 5n, effective heat conduction and supply can be performed, and rapid supply shortage of vaporization heat can be prevented.

By the way, the gas lighter A of this embodiment shows a desired flame length at room temperature and normal pressure without error, and even under the condition of an external temperature of 5 ° C., it is the same as a conventional lighter using a metal collector tube. It was able to ignite reliably without any problems, and as a result, the conventional sintered core and heat collecting cylinder were eliminated.

Needless to say, the structure of the present invention is simpler than a so-called non-adjustable valve mechanism using a transmission filter such as Juraguard (trade name), and the structure of a conventional single-use gas lighter. It also has the advantage that it can be used as it is.

The gas lighter A of the present invention is not limited to this embodiment, and can be freely modified in design within the scope of the present invention, and the present invention includes all of them. It is a sipping thing.

For example, although the present embodiment refers to a disposable gas lighter having a conventional structure, the present invention is not limited to this, and as shown in FIG. 4, it is hermetically sealed via the tank bottom lid 12. The inside of the gas tank 2 of the gas lighter with a lid may be divided into three chambers, and the annular pipe 6 may be arranged in the central chamber.

Further, when the tank bottom lid 12 is ultrasonically welded to the lighter body 1, the annular pipe 6 is made of plastic which holds the metal rod 5n ₃ under the influence of ultrasonic vibration. Since the tank body (specifically, the through hole 3b) may be deformed or damaged, the annular pipe 6 is arranged at a desired interval so that the lower end does not come into contact with the tank bottom lid 12. Is preferred.

Further, the use of the annular pipe 6 eliminates the need for a conventional sintered core, but it goes without saying that a sintered core can be used together if necessary.

Further, although the present embodiment refers to a so-called flint type lighter, it goes without saying that the present invention can also be applied to other oil lighters and piezo lighters. It includes everything.

[0054]

[Effect of the invention]

 The present invention is configured as described above, and an annular pipe having a lower end hanging down into the gas tank is attached to a lower portion of the filter or the nail-shaped stator, and a guard for preventing air bubbles from entering the annular pipe. Due to the provision of means, even if air bubbles are generated in the gas tank due to temporary vibration, external vibration, etc., or even if the lighter body is laid horizontally, even if air is shelved in the gas tank (belt-shaped) However, even if it spreads, these (fine air bubbles and air spread in a band) are prevented from entering from the lower end opening of the annular pipe. It is possible to eliminate the phenomenon and obtain a stable flame.

Further, since the guard means is a porous member such as a filter that allows only liquefied or vaporized gas to pass therethrough, the liquefied gas in the gas tank can be passed through the annular pipe without affecting the gas permeation amount at all. Alternatively, since only the vaporized gas can directly contact the filter or the nail-shaped stator, it is possible to eliminate the fear that the destabilization of the flame is caused.

Further, on the bottom surface of the nail-shaped stator, a rod-shaped metal rod whose lower end side hangs down into the gas tank is integrally connected, and a gas passage is formed on the outer peripheral surface of the metal rod. If a ring pipe is attached to form the ring pipe and a guard means is provided to prevent the bubbles from entering the ring pipe, when the ignition operation is performed, only the liquefied gas or vaporized gas in the gas tank is depleted by the negative pressure. In addition to being sucked to concentrate in the annular pipe, it is absorbed by the so-called capillary phenomenon along the pipe (specifically, the hollow area) and is absorbed, and the heat in the gas tank is transferred to the nail-shaped stator by heat conduction. To the metal rod and to supply the heat of vaporization required for vaporizing the liquefied gas to the vaporization chamber and in the vicinity of the valve, the vaporization heat supply is sufficiently promoted and the flame stabilization is more effective. Be able to It is.

As described above, in the gas lighter of the present invention, the liquefied gas can be sucked up easily and surely, and the flame down phenomenon caused by the bubbles entering from the annular pipe can be eliminated to stabilize the flame. The simple structure makes it suitable for mass production and can be supplied to users as a low-priced product. The practical value of implementing the present invention is enormous.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a first embodiment of a gas lighter according to the present invention.

2 (A) is a plan view of the nail-shaped stator, FIG. 2 (B) is a front view of the nail-shaped stator, and FIG. 2 (C) is a bottom view of the nail-shaped stator.

FIG. 3 is a longitudinal sectional view showing a main part of the gas lighter.

FIG. 4 is a vertical sectional view showing a second embodiment of the gas lighter according to the present invention.

FIG. 5 is a vertical sectional view showing a main part of a conventional gas lighter.

[Explanation of symbols]

1 Lighter Main Body 2 Gas Tank 3 Tank Top Cover 3a Fitting Recess 3b Through Hole 3c Vertical Hole 3d Cavity 3e Evaporative Heat Supply Path 4 Intermediate Case 4a Firestone Support Hole 5 Valve 5a Opening 5b Nozzle Spiral 5c Nozzle Bottom Plug 5d Valve Chamber 5g Gas Jet nozzle 5h Gas jet 5i Drilling 5j Valve rubber 5k Valve mouth 5m O-ring 5n Nail-shaped stator 5n ₁ Horizontal washer 5n ₂ Vertical nail 5n ₃ Metal rod 5n ₄ Slit 5o Filter 6 Annular pipe 60 Guard means 7 File wheel 8 Firestone 9 Valve operating lever 10 Push-out spring 11 Operation piece 12 Tank bottom lid

Claims (3)

[Utility model registration claims] 1. A gas comprising a gas tank formed in a lighter body, a valve mounted on an upper portion of the gas tank, and a filter and / or a nail-shaped stator disposed on a lower end side of the valve. In the lighter, below the filter or nail-shaped stator, an annular pipe whose lower end side hangs down into the gas tank is attached, and guard means is provided to prevent the entry of bubbles and the like into the annular pipe. Gas lighter characterized by. 2. The gas lighter according to claim 1, wherein the guard means is a porous member such as a filter that allows only liquefied gas or vaporized gas to pass therethrough. 3. A rod-shaped metal rod having a lower end hanging down into the gas tank is integrally connected to the bottom surface of the nail-shaped stator, and a gas passage is formed on the outer peripheral surface of the metal rod. The gas lighter according to claim 1, wherein an annular pipe is attached to form the annular pipe, and guard means for preventing the invasion of bubbles and the like is provided in the annular pipe.