JP4942226B2 - Gas writer - Google Patents

Description

  The present invention relates to a gas writer that mixes air with fuel gas to burn the mixture. The present invention is preferably used for a hand-held gas writer that ignites cigars, but a gas writer (pocket writer) that ignites cigarettes and a gas writer (ignition tool) that ignites candlesticks, firewood, fire-ignition materials, etc. Can be implemented.

  In one of the typical types of this type of gas writer, when a person operates the ignition control element, the gas release lever is driven in the valve opening direction, the gas release valve of the fuel tank is opened, and the fuel gas flows out from the nozzle. The gas is ignited by an electric spark. A gas-fired flame, like a candle flame, is easily extinguished by the wind. In order to improve this, there is a wind-resistant gas writer that feeds fuel gas from a nozzle into a mixing tube having an air suction port, and jets the fuel gas together with air from the mixing tube to a combustion cylinder and combusts there (for example, Patent Document 1). . A writer having a main flame nozzle and a side port (sub-nozzle) formed in a combustion cylinder is described in Patent Document 2 in order to increase the wind resistance performance and generate a narrowed torch-like combustion flame having a high heat density. ing.

JP-A-6-34133 Japanese Patent Laid-Open No. 2004-528524.

  The present invention is a gas combustion flame that has high reliability of ignition by electric sparks, a high thermal energy density of the gas combustion flame, and achieves ignition from the cigar core to the entire outside in a short time and is comfortable for smokers to use. , Aim to make.

(1) A fuel tank (2) having a fuel gas release valve for sending fuel gas to the gas release nozzle (1), a gas release lever (3) for opening the fuel gas release valve, and the gas release nozzle A mixer (5) that receives the fuel gas from (1), mixes the air, and sends the fuel gas together with the fuel gas to the combustion chamber (4), and an ignition mechanism that ignites the fuel gas and air mixture by electric sparks. (5-9) and an ignition operator (10) driven by a finger to ignite and drive the ignition mechanism, in a gas writer,
A current transformer having a plurality of grooves (8c) extending obliquely in the circumferential direction with respect to the direction in which the central axis extends on the outer peripheral surface, and the mixture flowing in from the mixer (5) being a tornado-shaped swirl (8) is provided in the combustion chamber (4),
The ignition mechanism (5-9) includes a piezoelectric unit (6) that is driven by the ignition operator (5) to generate a high voltage, and the mixer (5) is an insulating material having high flexibility and resilience. A conductor connected to the nozzle (1) by a body elastic tube (15), the current transformer (8) is also a conductor and is in electrical connection with the mixer (5), and A high voltage of the piezoelectric unit (6) is applied to the current transformer (8) via the mixer (5) to generate an electric spark having the current transformer (8) as a pole. Gas writer to do.

  In addition, in order to make an understanding easy, the code | symbol of the corresponding element or the equivalent element of the Example which is shown in drawing and mentions later in parentheses is attached for reference by reference. The same applies to the following.

  The air-fuel mixture flowing into the combustion chamber (4) from the mixer (5) is turned into a tornado-like swirl flow by the current transformer (8) and exits from the combustion chamber (4) to the outside air. The air-fuel mixture that has become a tornado-like swirl flow swirls, making the air mixture uniform and igniting with an electric spark generated by the ignition mechanism (5-9), and the ignited combustion gas flame has sufficient air The tornado-like swirling flow mixed in uniformly and with high heat energy density, fast ignition of the cigar and cigarette core and the outside thereof, and it is comfortable for smokers to use.

The external appearance of the gas writer of one Example of this invention is shown, (a) is a front view, (b) is a left side view, (c) is a right side view, (d) is a top view, (e) is a bottom view. is there. The rear view appears symmetrically with the front view. It is a longitudinal cross-sectional view of the gas writer shown in FIG. FIG. 2 is an enlarged view of the current transformer 8 shown in FIG. 2, (a) is a front view, (b) is a perspective view, (c) is a plan view, and (d) is a bottom view.

( 2 ) The gas writer according to (1), wherein the ignition operator (5) drives the gas release lever (3) in a direction to open the drive by moving the ignition mechanism to ignite.

( 3 ) a lid (11) for opening and closing the flame opening of the combustion chamber (4), a spring member for driving the lid (11) to open, a lock position for keeping the lid (11) in the closed position closed, and the The gas writer according to the above (1) or (2) , further comprising a lock button (13) movable to an unlock position where the lid (11) can be opened.

  Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

  The handheld writer shown in FIG. 1 has a liquefied fuel tank 2 as shown in FIG. 2, and a fuel gas release valve that is a normally closed valve for sending combustion gas to the gas release nozzle 1 inside, When the gas discharge nozzle 1 is lifted upward by the gas discharge lever 3, the fuel gas discharge valve is opened, and a part of the liquefied fuel in the liquefied fuel tank 2 is vaporized to bend from the nozzle 1. It goes out to the elastic tube 15 made of an insulator having high resilience and enters the mixer 5 through the elastic tube 15. The mixer 5 has a gas flow path at its central shaft portion, and has an air suction port that is orthogonal to and communicates with the gas flow path, so that air is sucked into the mixer 5 by the fuel gas flow, and the fuel gas A mixture of air and air flows out into the combustion chamber 4 which is the inner space of the combustion cylinder 6 made of an insulating ceramic.

  An enlarged diameter portion at the upper end of the mixer 5 enters the inside of the combustion cylinder 6, and a current transformer 8 is inserted into the enlarged diameter portion so as to be pressed against the inner surface of the enlarged diameter portion of the mixer 5. ing. The substantially thick-walled cylindrical crater member 7 to which the combustion cylinder 6 is fixed is metallic (conductor), and is formed on a metal trunk (conductor: not shown) standing on a metal (conductor) fuel tank 2. The crater member 7 is electrically connected to the fuel tank 2.

  As shown in FIG. 3, the current transformer 8 of the present embodiment has a large number of grooves 8c distributed on the same circumference as a mixed air flow path on the side surface, that is, the outer peripheral surface of the large-diameter base 8a. The lower end of the groove 8c is open to the bottom tapered surface of the base 8a. The upper end of the groove 8c is open to the upper end surface of the base portion 8a, but a small-diameter electrode portion 8d protrudes from the upper end surface. A large-diameter base portion 8 a is press-fitted into an enlarged diameter portion at the upper end portion of the mixer 5. The groove 8c extends obliquely in the circumferential direction (the circumferential direction of the outer periphery of the base portion 8a) with respect to the vertical direction (the direction in which the central axis of the current transformer 8 extends). That is, it is twisted to give swirl to the mixed airflow.

  In addition to the groove 8c extending obliquely, the air-mixing flow path may be a hole extending obliquely distributed on the circumference centering on the central axis of the base 8a. Whether it is a groove or a hole, it can be formed by a special jig and a manual operation or an automatic machine tool. However, since the groove 8c is formed on the outer peripheral surface, creation (processing) is easy.

  Please refer to FIG. 2 again. At the upper end portion of the crater member 7, a lid 11 for opening and closing the crater (crater) of the crater member 7 is rotatably supported by a pin 12, and is forced in the opening direction by a spring. When the lid 11 is closed, the lid 11 is held in the closed position by the lock button 13. That is, it is locked. When the lock button 13 is pushed down against the repulsive force of the compression coil spring below it, the lid 11 is unlocked and the lid 11 is opened at the open position indicated by the dotted line in FIG. When the user closes the lid 11, the lock button 13 automatically (mechanically) locks the lid 11 closed.

  In the present embodiment, there is a piezoelectric unit 6 next to the liquefied fuel tank 2, and when the ignition operation element 10 pushes down the slider on the head, the piezoelectric element is located in the unit 6 at a position where the slider is lowered to some extent. A high voltage is generated by being struck by a plunger.

  One pole of the high voltage output of the piezoelectric unit 6 is connected to the fuel tank 2. That is, it is electrically connected to the crater member 7. The other pole is connected to the mixer 5 via an electrical lead 9. That is, it is electrically connected to the current transformer 8. Therefore, when the piezoelectric unit 6 generates a high voltage, an electric spark (discharge spark) is generated between the current transformer 8 and the crater member 7 (the edge portion located at the upper end of the combustion cylinder 6).

  The tip of the gas release lever 3 is engaged with the lower end of the nozzle 1, and the ignition operation element 10 that can slide up and down pushes down the tail end of the gas release lever 3 that is jumped up and down (turns clockwise). ), The gas release lever 3 rotates about the fulcrum, and the tip of the gas release lever 3 pushes up the nozzle 1, thereby opening the fuel gas release valve in the fuel tank 2, and in the fuel tank 2. The liquefied fuel is vaporized and enters the mixer 5 through the nozzle 1.

  When the user drives the lock button 13 downward to open the lid 11 and depresses the ignition operation element 10, the gas release lever 3 rotates to open the fuel gas release valve in the fuel tank 2, and the piezoelectric unit. 6 head slider is pushed down. The piezoelectric unit 6 strikes a piezoelectric element inside the piezoelectric unit 6 to generate a high voltage, and the high voltage causes the current transformer 8 (the tip thereof) and the crater member 7 (the edge portion located at the upper end of the combustion cylinder 6). An electric spark is generated between the two, and this ignites the air-fuel mixture in the combustion chamber 4, that is, ignites, thereby generating a combustion gas flame in the combustion chamber 4 and a flame at the upper end of the crater member 7. Completely combusted gas spouts upward from the mouth.

  The mixed gas flow of fuel gas and air sent from the mixer 5 to the combustion chamber 4 has a high concentration of fuel gas at the center and air flows outside thereof, and air is unevenly distributed in the radial direction. When the swirl force is applied to the air-fuel mixture while ascending through the torsion groove 8c of the current transformer 8, and passes through the torsion groove 8c and exits from the upper end portion of the large-diameter base 8a, the air-fuel mixture Is a swirling flow having a component traveling in the circumferential direction on the outer peripheral surface of the small-diameter electrode portion 8d, that is, a tornado-like shape, and rises in the combustion chamber 4 toward the flame outlet. This swirl flow is agitated by the swirl, and the fuel gas and air are mixed uniformly.

  Since the electric spark generated by the high voltage of the piezoelectric unit 6 crosses the tornado from the center (or vice versa), the air-fuel mixture on the electric spark path is a mixture of air and fuel gas. Because it is, it is easily and reliably ignited by electric sparks. Since the air-fuel mixture swirls like a tornado, the flame also swirls like a tornado and blows upward from the flame opening of the crater member 7. With this flame flow, outside air is sucked into the flame flow through the air port 14 and directly into the flame flow. This supply of air further increases the amount of air supplied, and the flame is completely burned, resulting in high thermal energy. Therefore, when this flame is applied to the tip of the cigar, the tip surface starts to burn in a wide range within a short time. It is a comfortable ignition for smokers.

  When the user stops pushing down the ignition operation element 10, the slider on the head of the piezoelectric unit 6 returns and rises by the repulsive force of the return spring in the piezoelectric unit 6, and the ignition operation element 10 is shown in FIGS. Return to the original position. By this return of the ignition operation element 10, the gas release lever 3 returns to its original position and rotates, the fuel gas release valve in the liquefied fuel tank 2 is closed, and the combustion flame disappears. When the user closes the lid 11, the lock button 13 locks the lid 11.

1: Gas discharge nozzle 2: Liquefied fuel tank 3: Gas discharge lever 4: Combustion chamber 5: Mixer 6: Piezoelectric unit 7: Tinder member 8: Current transformer 9: Electric lead 10: Ignition operator 11: Lid 12: Pin 13: Lock button 14: Air port 15: Elastic tube

Claims (3)

A fuel tank having a fuel gas release valve for supplying fuel gas to the gas release nozzle; a gas release lever for opening the fuel gas release valve; and a fuel gas emitted from the gas release nozzle for receiving air and mixing the air. A mixer for sending air to the combustion chamber together with the fuel gas; an ignition mechanism for igniting the mixture of the fuel gas and air with an electric spark; and an ignition operator that is driven by a finger to drive the ignition mechanism to ignite. In the gas writer
Chi lifting the outer circumferential surface a plurality of grooves extending obliquely in the circumferential direction to the direction in which the central axis extends, the Henryuko that the a tornado-like swirling flow the gas mixture flowing from the mixer, the combustion chamber In preparation for
The ignition mechanism includes a piezoelectric unit that is pushed and driven by the ignition operator to generate a high voltage, and the mixer is a conductor connected to the nozzle by an elastic tube of an insulator having high flexibility and resilience. The current transformer is also a conductor and is in electrical connection with the mixer, and the high voltage of the piezoelectric unit is applied to the current transformer through the mixer to make the current transformer one pole. A gas writer characterized by generating an electric spark . 2. The gas writer according to claim 1, wherein the ignition operator is driven in a direction to open the gas release lever by a movement for igniting the ignition mechanism. A lid that opens and closes the flame opening of the combustion chamber, a spring member that drives the lid to open, a lock position that keeps the lid closed in a closed position, and a lock that can move to an unlock position where the lid can be opened button gas lighter according to claim 1 or 2 further comprising a.

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