JP3134236U - Piezoelectric gas writer - Google Patents

Abstract

There is provided a piezoelectric gas lighter capable of preventing burns and the like due to heating around a gas injection port accompanying use of a lighter while maintaining good ignitability without increasing the number of parts.
A gas tank for storing fuel gas, a gas ejection nozzle communicating with the inside and outside of the gas tank, a valve mechanism including a gas ejection operation lever for opening and closing the gas ejection nozzle, and ignition for operating the gas ejection operation lever In a piezoelectric gas lighter comprising an operation means and a piezoelectric device that emits a spark in conjunction with the operation of the ignition operation means, the gas lighter main body is divided into an upper main body and a lower main body that move relatively up and down. Is an ignition operation means, and the lower body is provided with an air intake for introducing oxygen necessary for combustion of fuel gas from the outside, and when the upper body is moved downward, the air intake is opened, The piezoelectric device is operated and ignited to create a flame.
[Selection] Figure 3

Description

  The present invention relates to a piezoelectric gas writer that ignites a fuel gas by a piezoelectric device. In particular, the writer main body is composed of an upper part and a lower part, and the upper part of the main body is pushed down with respect to the lower part in use so that the air vent is externally provided The present invention relates to a piezoelectric gas writer having a structure in which a fuel gas is burned by being opened.

  Conventionally, a gas tank in which fuel gas is stored, a gas ejection nozzle communicating with the inside and outside of the gas tank, a valve mechanism for opening and closing the gas ejection nozzle, and a fuel gas ejected through the gas ejection nozzle are discharged and ignited. Piezoelectric gas writers having an ignition operation button for opening a valve and operating a piezoelectric element while performing a valve opening operation are widely used.

  The piezoelectric gas writer configured as described above is accommodated in the gas tank from the gas outlet at the upper end of the gas ejection nozzle by pushing the ignition operation button and operating the gas ejection operation lever in conjunction with this operation to open the valve. As the fuel gas is ejected, a spark is emitted from the piezoelectric element of the piezoelectric device to the ejected fuel gas, so that the fuel gas is ignited and a flame having a preset strength can be obtained. ing.

  Needless to say, an appropriate amount of oxygen is required for proper combustion of the fuel gas, and the gas writer needs to be configured so that the oxygen supply can be appropriately performed. In this regard, many of the conventional gas writer forms a top cover portion whose center is opened by bending the upper portion inward while bending a metal plate into a substantially U shape to form a side cover portion. A gas cover formed by penetrating a vent hole communicating with the inside and outside of the side cover portion is disposed at the upper portion of the gas writer body so as to surround the gas outlet, and suppresses the diffusion of the injected fuel gas. It is configured so that non-ignition due to wind or the like is prevented and ignition is easy. As a gas writer provided with such a gas cover, for example, Patent Document 1 can be raised.

  However, when a gas writer equipped with such a metal gas cover is used, the gas cover is heated by the flame ignited at the upper part of the jet outlet and becomes very hot. When it comes into contact with a plastic product or the like, there is a problem that it is melted and damaged.

  On the other hand, a gas writer is known in which a lid is pivotally attached to an upper portion of a gas writer body so as to be opened and closed in a hinge shape. The lid of the gas writer in such a configuration is configured to cover the ignition operation button, the gas outlet, and the entire periphery thereof as disclosed in Patent Document 2, and when the ignition is performed, the lid The body is opened, and the lid can be closed when the gas writer is not used.

For this reason, if the lid is closed after the gas writer is used, the peripheral portion of the gas outlet heated by the ignition of the gas writer is not exposed to the outside, so that burns and the like can be prevented. However, the gas writer with this configuration requires a lid, which requires an increase in the number of parts and the need for an attachment process, which increases the cost and makes the lid open / close operation cumbersome. Following the operation, there is a problem that a push operation of the gas ignition button is required, and a two-stage operation is required.
Japanese Patent No. 3669295 JP 2007-78320 A

  The present invention has been made in view of the above-mentioned problems, and while maintaining good ignitability without increasing the number of parts, it prevents burns and the like due to heat around the gas injection port associated with the use of a writer. It is intended to provide a piezoelectric gas writer that can be used.

  In order to solve the above problems, the piezoelectric gas writer according to the present invention employs a gas tank for storing fuel gas, a gas jet nozzle communicating with the inside and outside of the gas tank, a valve for opening and closing the gas jet nozzle, In a piezoelectric gas writer comprising a gas ejection operation lever for operating the opening and closing of a valve, an ignition operation means for operating the gas ejection operation lever, and a piezoelectric device for emitting a spark in conjunction with the operation of the ignition operation means The gas writer main body is divided into an upper main body and a lower main body, the upper main body is attached to the lower main body so as to be movable up and down, the upper main body has a function as an ignition operation means, and the lower main body has a fuel gas An air intake for introducing oxygen necessary for combustion from the outside is provided, and when the upper part is moved downward, the air intake is exposed and opened. Actuates the piezoelectric device is characterized in that configured to produce a flame to ignite emanated spark to the fuel gas ejected from the gas ejection nozzle.

  The piezoelectric gas writer of the present invention employs a gas tank for storing fuel gas, a gas ejection nozzle communicating with the inside and outside of the gas tank, a valve for opening and closing the gas ejection nozzle, and an operation for opening and closing the valve. In a piezoelectric gas writer comprising a gas jetting operation lever, an ignition operating means for operating the gas jetting operating lever, and a piezoelectric device for emitting a spark in conjunction with the operation of the ignition operating means, the gas writer main body is The main body is divided into a main body and a lower main body, and the upper main body is attached to the lower main body so as to be movable up and down. An air intake for introduction is provided, and when the upper body is moved downward, the air intake is exposed and opened, and the piezoelectric device is operated. The fuel gas ejected from the gas ejection nozzle is configured to ignite and create a flame by igniting the fuel gas, and the upper main body may cover a substantially upper half of the lower main body. The upper main body is formed with a vertical hole-shaped guide slit having a length corresponding to the downward stroke of the upper main body at a pair of portions on the predetermined opposite side walls of the upper main body. When the upper main body is disposed so as to cover substantially the upper half of the lower main body, a shaft hole penetrating the front and back of the lower main body is formed at a position corresponding to the lower end of the guide slit, and the guide A single shaft rod is inserted into both the slit and the shaft hole so that the upper body can be moved up and down with a predetermined stroke with respect to the lower body and the upper body is prevented from being pulled out. It is characterized by comprising as follows.

  The piezoelectric gas writer of the present invention is divided into an upper main body and a lower main body that move up and down relatively, and the upper main body is formed in a substantially cylindrical cover shape so as to cover a substantially upper half of the lower main body. The lower body has a gas tank, a gas ejection nozzle, a gas ejection operation lever, and a piezoelectric device, and moves the upper body downward relative to the lower body. Therefore, when not in use, the air intake port hidden in the upper part of the upper body is exposed to the outside as it moves downward during use, and the external air is released to the periphery of the gas outlet of the gas ejection nozzle. By being configured to supply and ignite, good ignitability can be obtained with almost no increase in the number of parts. Concealed It is possible to prevent that to burns, etc. by the.

  In addition, in the present invention, the above configuration makes it possible to obtain an unprecedented design gas writer, and in use, the finger that pushes down the upper body is one step away from the height of the flame under ignition. Since the finger moves to the lowered height position, there is an effect that the upper body can be continuously pushed without the finger becoming hot.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of the appearance of the piezoelectric gas writer (1) of this embodiment. As shown in FIGS. 1 and 2, the piezoelectric gas writer (1) is composed of two parts, an upper body (2) and a lower body (3), in which the writer body is relatively movable up and down. . Of course, the piezoelectric gas writer (1) is configured so as to be ignited and produce a flame (F) by moving the upper body (2) downward relative to the lower body (3).

  As shown in FIG. 3, the piezoelectric gas writer (1) has a cylindrical cover shape with a substantially oval cross section, and is mounted so as to cover the substantially upper half of the lower body (3). A gas tank (4) for storing fuel gas, a gas jet nozzle (5) communicating with the inside and outside of the gas tank (4), and a gas jet A valve mechanism (6) having a gas ejection control lever (6a) for opening and closing the nozzle (5), and a piezoelectric for igniting the gas ejected from the upper end of the gas ejection nozzle (5) by sparking. The device (7), the holding case (8) for storing these series of parts, and the shaft rod (9) for preventing the upper body (2) attached to the substantially upper half of the lower body (3) from coming off And a lower outer case (10) that is mounted so as to cover a substantially lower half of the holding case (8) from below. ) Made from a.

  The upper body (2) has a cylindrical cover shape with a substantially oval cross section, and its bottom is open. A top plate (2a) is formed on the top surface of the upper body (2), and a predetermined portion of the top plate (2a) is formed into a substantially oval shape that penetrates the top and bottom of the top plate (2a). An ignition hole (2b) is formed. Vertical hole-shaped guide slits (2c) are formed at substantially central portions of a pair of side surfaces forming a planar shape of the upper body (2). Note that notches (2d), (2e), and (2f) may be formed at appropriate portions on the side surface of the upper body (2) to reduce weight and save raw materials. In addition, a decorative cover body (11) is disposed in a substantially upper half of the upper body (2) to improve the design.

  The decorative cover body (11) has a shape that covers the upper body (2) in a substantially similar shape, and a pair of substantially planar side portions are formed in an inverted V shape, but of course the shape is limited. The upper body (2) may be moved down with respect to the lower body (3), and any downward stroke of a certain amount or more can be taken.

  The gas tank (4) is configured to store fuel gas and is accommodated in a predetermined position in the holding case (8). One end of the gas ejection nozzle (5) is disposed on the upper portion of the gas tank (4), and the inside thereof is configured to communicate with each other.

  The gas ejection nozzle (5) has a substantially metal pipe shape extending in the vertical direction, and its lower end is disposed in communication with the gas tank (4), and has a gas ejection port (5a) at its upper end. The base end portion has a valve mechanism (6) including a valve (not shown) for controlling the ejection of fuel gas.

  The valve mechanism (6) has a valve for controlling the ejection of the fuel gas and a gas ejection operation lever (6a) for operating the opening and closing of the valve at the base end of the gas ejection nozzle (5). . This gas ejection control lever (6a) has a lever portion (6b) which extends obliquely from the proximal end portion of the gas ejection nozzle (5) to the upper end portion of the push switch (7a) of the piezoelectric device (7). The fuel gas, which is pushed down in conjunction with the downward movement of the upper body (2), opens the valve and is stored in the gas tank (4), is supplied to the gas jet nozzle (5a) at the upper end of the gas jet nozzle (5) It is configured so that it can be ejected from.

  For the piezoelectric device (7), a conventionally known technique can be used. A piezoelectric element (not shown), a hammer (not shown) for hitting the piezoelectric element (not shown), and a coil spring (see FIG. Not shown), a casing (7b) for housing them, a push switch (7a) for striking the hammer against the piezoelectric element to generate a piezoelectric current, and a piezoelectric generated by striking the piezoelectric element with the hammer It has a lead (7c) for guiding the current to the vicinity of the gas ejection port (5a) at the upper end of the gas ejection nozzle (5).

  An ignition cover body (12) for improving ignitability surrounds the upper position of the gas outlet (5a) around the upper position of the gas outlet (5a) at the upper end of the gas outlet nozzle (5). It is arranged. The ignition cover body (12) is substantially similar in shape to the substantially oval ignition hole (2b) formed in a predetermined portion of the top plate (2a) of the upper body (2) and is slightly smaller. It has an oval shape, and has a substantially oval top plate (12a) on its top surface, and is penetrated over the top and bottom of the top plate (12a) directly above the gas ejection port (5a). It has a circular ignition hole (12b). An air intake port (12c) for introducing air from the outside is formed on the side surface of the ignition cover body (12).

  The holding case (8) has a substantially cross-sectional shape that is substantially similar to that of the upper main body (2), which has a substantially long cylindrical shape, and can move up and down slidably. One side surface portion having a substantially arc shape has a window portion (8a) cut out in a window shape so that the remaining amount of fuel gas in the gas tank (4) can be visually recognized. A shaft hole (8b) through which the shaft rod (9) is inserted is drilled in the central upper part of the pair of side surface portions that form a substantially planar shape of the holding case (8). Of course, even in the assembled state of the lower body (3), the shaft hole (8b) drilled in the holding case (8) has a shaft rod (9) not only through the holding case (8) but also throughout the lower body (3). It is comprised so that it can be inserted.

  As shown in FIGS. 4 and 5, the lower exterior case (10) is configured to cover the substantially lower half of the upper body (2) from below while housing the holding case (8) inside. It is a bottomed decorative member having a substantially long cylindrical shape that is substantially similar to and slightly larger than the substantially lower half of the upper main body (2) that has a substantially long cylindrical shape. A filling hole (10a) for filling the fuel gas into the gas tank (4) is formed in a predetermined portion of the bottom of the lower outer case (10) corresponding to the position of the gas tank (4).

  When assembling the piezoelectric gas writer (1) of the present embodiment configured as described above, first, each component is housed and disposed in a predetermined portion inside the holding case (8). Assemble the body (3). Next, while aligning the position of the ignition cover body (12) of the lower body (3) and the position of the ignition hole (2b) of the upper body (2), the upper body (2) is positioned substantially above the lower body (3). Cover half and push in slightly. In this state, while aligning the guide slit (2c) of the upper body (2) and the shaft hole (8b) of the lower body (3), the shaft rod (9) is inserted through these holes. At this time, as shown in FIG. 5, the shaft rod (9) has a length corresponding to the thickness between the outer end surfaces of the side surfaces of the substantially flat portion facing the upper body (2). The end surface of (9) and the plate surface of the guide slit (2c) portion are configured to be at the same level. In this state, the holding case (8) is mounted in the lower exterior case (10) from below to obtain a finished product of the piezoelectric gas writer (1) of this embodiment.

  When the piezoelectric gas writer according to the present embodiment assembled as described above is used, the top plate (2a) of the upper body (2) is pushed into the lower body (3) and moved downward. As a result, the upper end of the lever portion (6b) of the gas ejection operation lever (6a) is moved downward to open the valve. The fuel gas stored in the gas tank (4) is ejected from the gas ejection port (5a) at the upper end through the gas ejection nozzle (5), and the piezoelectric device is moved along with the downward movement of the upper body (2). The push switch (7a) of (7) is pushed. In conjunction with this, the hammer strikes the piezoelectric element in the piezoelectric device (7), and the piezo current generated thereby conducts the lead (7c) and discharges in the vicinity of the gas ejection port (5a). That is, the piezoelectric gas writer (1) of the present embodiment is configured to ignite the fuel gas ejected from the gas ejection port (5a) by this discharge and burn the fuel gas.

  At this time, as the upper body (2) moves downward, the ignition cover body (12) and the gas outlet (5a) are exposed to the outside from the ignition hole formed in the top plate (2a) of the upper body (2). The air intake port (12c) formed in the ignition cover body (12) is exposed to the outside and exposed to the outside so that oxygen necessary for combustion of the fuel gas can be introduced. In addition, when the fuel gas is burned, the height of the finger that keeps pushing the upper body (2) down with respect to the height of the flame (F) is lowered one step further, so that the finger becomes hot. Can be prevented.

  After use, if the pressing force that has pushed the upper body (2) is released, the upper body (2) moves up to its original height position by the elastic force of the coil spring built in the piezoelectric device (7). And it is comprised so that the side part etc. of an ignition cover body (12) may be covered. Accordingly, the periphery of the ignition cover body (12) that has been heated with the use of the piezoelectric gas writer (1) is covered with the upper body (2), and thus the heated ignition cover body (12) is directly touched. It is possible to suppress burns and the like caused by

Perspective view of appearance of piezoelectric gas writer of this embodiment A perspective view showing the usage state of the piezoelectric gas writer Exploded perspective view of the piezoelectric gas writer One sectional view showing the structure of the assembled state of the piezoelectric gas writer Sectional drawing which shows the assembly | attachment structure of the shaft bar in the assembly state of the same piezoelectric gas writer

Explanation of symbols

1 Piezoelectric gas writer 2 Upper body
2a Top plate
2b Ignition hole
2c Guide slit
2d cutout
2e Notch
2f Notch 3 Lower body 4 Gas tank 5 Gas ejection nozzle
5a Gas outlet 6 Valve mechanism
6a Gas ejection control lever
6b Lever part 7 Piezoelectric device
7a Push switch
7b casing
7c Lead 8 Holding case
8a Window
8b Shaft hole 9 Shaft bar
10 Lower exterior case
10a Filling hole
11 Decorative cover body
12 Ignition cover body
12a Top plate
12b Ignition hole
12c Air intake F Flame

Claims (2)

  Gas tank for storing fuel gas, gas ejection nozzle communicating with the inside and outside of the gas tank, a valve for opening and closing the gas ejection nozzle, a gas ejection operating lever for operating the opening and closing of the valve, and the gas ejection operating lever In a piezoelectric gas writer comprising an ignition operation means for operating the gas and a piezoelectric device that emits a spark in conjunction with the operation of the ignition operation means, the gas writer body is divided into an upper body and a lower body, and the upper body is divided into the lower body The upper body is provided with an ignition operation means, and the lower body is provided with an air intake for introducing oxygen necessary for combustion of fuel gas from the outside. When the main body is moved down, the air intake port is exposed and opened, and the piezoelectric device is operated to react with the fuel gas ejected from the gas ejection nozzle. The piezoelectric gas lighter, characterized in that configured to produce a flame to ignite emanated spark. Gas tank for storing fuel gas, gas ejection nozzle communicating with the inside and outside of the gas tank, a valve for opening and closing the gas ejection nozzle, a gas ejection operating lever for operating the opening and closing of the valve, and the gas ejection operating lever In a piezoelectric gas writer comprising an ignition operation means for operating the gas and a piezoelectric device that emits a spark in conjunction with the operation of the ignition operation means, the gas writer body is divided into an upper body and a lower body, and the upper body is divided into the lower body The upper body is provided with an ignition operation means, and the lower body is provided with an air intake for introducing oxygen necessary for combustion of fuel gas from the outside. When the main body is moved downward, the air intake port is exposed and opened, and the piezoelectric device is operated to react with the fuel gas ejected from the gas ejection nozzle. The upper main body has a substantially cylindrical cover shape that can cover the substantially upper half of the lower main body, and ignites sparks to create a flame. A pair of parts on the side wall is formed with a vertical-hole-shaped guide slit having a length corresponding to the downward stroke of the upper body, while the lower body is covered with the upper body substantially over the upper half of the lower body. When the upper body is disposed, a shaft hole penetrating the front and back of the lower body is formed at a position corresponding to the lower end of the guide slit, and the guide slit and the shaft hole are aligned with each other. A piezoelectric gas writer characterized in that a shaft rod is inserted, the upper body can be moved up and down with a predetermined stroke with respect to the lower body, and the upper body is prevented from being detached. .

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