JPH0534448U - Gas lighter - Google Patents

Abstract

(57) [Abstract] [Purpose] Effectively remedying the shortcomings of vaporization heat supply shortage when using a non-heat conductive material as a heat collecting cylinder while taking advantage of the characteristics of synthetic resin materials such as low cost and excellent workability. Excuse me. [Structure] The heat collecting cylinder 6 is formed of a synthetic resin material, and a cutout groove 6b is provided on the upper end surface of the heat collecting cylinder 6, so that the vaporization reservoir chamber can be formed when the heat collecting cylinder 6 is brought into contact with the lower surface of the nail-shaped stator. The heat of vaporization supplied from the gas tank is effectively retained in the vaporization reservoir chamber. More preferably, if the vaporization heat supply passage 6c is provided in the heat collecting cylinder 6, the nail-shaped stator and the inside of the gas tank are more surely communicated with each other, and the heat of the liquefied gas filling the gas tank is more effective. In addition, it reaches the vicinity of the valve and the vaporization heat necessary for vaporizing the liquefied gas is sufficiently supplied.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an improvement of a lighter (oil lighter, piezo lighter, flint type lighter) in which a liquefied gas suction member is suspended in a tank.

[0002]

[Prior Art]

 Generally, in a gas lighter, a gas ejecting nozzle is operated by pushing down an ignition operator to start ejecting gas, and an ignition means is operated to generate a spark to ignite gas. Such gas lighters are roughly classified into a filer-type lighter (so-called flint-type lighter) that rubs a pyrotechnic stone with a file and ignites with a spark at that time, or a high-voltage is generated by striking a piezoelectric element with a striking mechanism. There is a piezoelectric ignition type lighter (so-called piezo lighter) that ignites by a spark discharge using a piezoelectric unit that allows the lid to open and close the top of the piezo lighter so that the lid can be opened and closed. There is a gas lighter with a lid that operates the piezoelectric unit by opening and closing.

[0003] Among these gas lighters, particularly in the above-mentioned file type lighter and piezoelectric ignition type gas lighter, so-called synthetic resin disposable lighters are generally used. In such a lighter, the vaporization chamber and the surroundings of the valve are molded from a synthetic resin material, so the supply of vaporization heat necessary for vaporizing the liquefied gas of the fuel is insufficient, and the liquefied gas is not vaporized sufficiently. Since it is feared that the flame may become unstable by passing through the passage between the nail-shaped stator and the valve bottom (more specifically, the bottom surface of the nozzle bottom plug), it is necessary to eliminate such defects. Various types of synthetic resin gas lighters have been devised that also serve as means for supplying heat of vaporization to the surroundings.

Conventionally, as such a gas lighter, as shown in FIG. 11, a valve 5 is attached to an upper portion of a plastic (synthetic resin) gas tank (not shown), and the lower portion of the valve 5 is used to cover the inside of the gas tank. In a plastic gas lighter in which a liquefied gas suction core S is hung, the plastic gas lighter extends below the valve 5 around the upper part of the core S and is attached to the lower surface of the nail-shaped stator 5n below the valve 5. Provided is a metal heat collecting cylinder 6 which contacts the upper end surface and extends along the upper peripheral surface of the core S into the gas tank, and transfers heat of the liquefied gas to the nail-shaped stator 5n by heat conduction, There was a plastic gas lighter in which the heat of vaporization required for vaporization in the vaporization chamber was supplied to the vaporization chamber to stabilize the flame (see Japanese Patent Publication No. 57-32304).

[0005]

[Problems to be solved by the device]

 However, in the plastic gas lighter disclosed in Japanese Patent Publication No. 57-32304 mentioned above, since the heat collecting cylinder 6 is made of metal, it is difficult to bend and the cost is high. There was a problem.

On the other hand, the cause of insufficient supply of vaporization heat seen in such a plastic gas lighter is that the vaporization chamber and the periphery of the valve are molded with a synthetic resin material which is a non-thermally conductive material. In addition, it is also due to the fact that the periphery of the valve is closed by the assembly member, in other words, that there is no supply path for the heat of vaporization other than the sintering core (specifically, the heat collecting tube). However, just because the vaporization chamber and the surroundings of the valve are molded with a synthetic resin material that is a non-thermally conductive material does not necessarily mean that the vaporization heat supply is insufficient. If the heat of vaporization is directly supplied to the vaporization chamber and the surroundings of the valve from other areas, it is necessary to vaporize the liquefied gas even if the periphery of the vaporization chamber is molded with only synthetic resin material. A supply shortage of heat of vaporization does not occur.

As a result of earnestly researching the idea conversion, the present inventor has used a heat collecting cylinder made of synthetic resin, which was conventionally unsuitable for a conventional gas lighter using a heat collecting cylinder. However, by positively communicating the area around the vaporization chamber with the inside of the gas tank and bringing the liquefied gas into direct contact with the nail-shaped stator, it is possible to obtain a supply of vaporization heat that is preferable to the heat conduction by the metal member. The present invention has the disadvantage of using a non-thermally conductive material as a heat collecting cylinder while utilizing the characteristics of synthetic resin materials such as low cost and excellent workability, that is, insufficient supply of vaporization heat. It is an object of the present invention to provide an inexpensive gas lighter improved by a simple means.

[0008]

[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 body of the lighter, and an airtight integral with the upper opening of the gas tank. A tank upper lid, an upper opening fitting recess formed integrally in the tank upper lid, a through hole opened in the center of the bottom surface of the fitting recess to communicate with the gas tank, and press fitted into the fitting recess. A valve, a nail-shaped stator fitted to the lower end of the valve via a ring-shaped filter, a sintered core suspended from the lower end of the nail-shaped stator into the gas tank, and the nail-shaped In a gas writer having an upper end surface in contact with the lower surface of the stator and a heat collecting tube extending along the upper peripheral surface of the sintering core into the gas tank, the heat collecting tube is formed of a synthetic resin material. The gas lighter It consists in a gas lighter comprising providing a notched groove on the upper end surface of the cylindrical.

In addition, it is preferable that the heat collecting cylinder is provided with a vaporization heat supply passage that connects at least the nail-shaped stator and the inside of the gas tank.

[0010]

[Action]

 In the gas lighter of the present invention thus constructed, the heat collecting cylinder is made of a synthetic resin material, so that the cost can be further reduced and a cutout groove is formed on the upper end surface of the heat collecting cylinder. By providing the above, a vaporization reservoir chamber is formed when it is brought into contact with the lower surface of the nail-shaped stator, and in the vaporization reservoir chamber, between the inner wall surface of the fitting recess and the outer peripheral surface of the heat collecting cylinder. The heat of vaporization supplied from the inside of the gas tank is effectively retained through the gas passage and the sintering core that are communicated with the inside of the gas tank formed by the generated gap.

Further, if the vaporization heat supply path for communicating at least the nail-shaped stator and the inside of the gas tank is provided in the heat collecting cylinder, the nail-shaped stator and the inside of the gas tank are more surely communicated with each other. Therefore, the heat of the liquefied gas filling the gas tank reaches the vaporization chamber and the vicinity of the valve more effectively, and further, the liquefied gas in the gas tank can come into direct contact with the nail-shaped solid particles. The heat of vaporization required for the vaporization of is sufficiently supplied.

[0012]

【Example】

 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, and this gas lighter A is, as shown in FIG. 3 is provided. That is, the gas tank 2 is filled with a 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 between the two. Further, 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. 2, a bottomed cylindrical fitting recess 3a having an open top is integrally formed in the tank upper lid 3, and the gas tank is formed at the center of the bottom surface of the fitting recess 3a. A through hole 3b communicating with 2 is opened. The valve 5 is hermetically pressed into the fitting recess 3a.

The valve 5 includes a nozzle lid 5b having a cylindrical lid shape having an opening 5a at the 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 (see FIGS. 1 and 2). In the valve chamber 5d, a gas jet nozzle 5g is opened at the upper end through an O-ring 5e and a spring 5f to open the nozzle spiral 5b. It is mounted so as to project outward from 5a (see FIG. 1).

As shown in the enlarged view of FIG. 2, the gas ejection nozzle 5g has a perforation 5i communicating with the gas ejection passage 5h in the radial direction of the outer peripheral surface, and a lower opening of the gas ejection passage 5h at the lower end. A valve rubber 5j fitted in a sealed state is provided so as to project, and by operating the tip neck portion of the gas ejection nozzle 5g in the withdrawing direction via a valve operating lever 9 (see FIG. 1) described later, The lower end surface of the valve rubber 5j is assembled so as to open and close a valve opening 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 recessed portion 3a which contacts the outside. Further, a valve port 5k is opened on the bottom surface of the nozzle bottom plug 5c, and a nail-shaped stator 5n is fitted to the valve port 5k and protrudes. Further, a ring-shaped filter 5o is interposed between the nail-shaped stator 5n and the bottom surface of the nozzle bottom plug 5c.

On the other hand, a heat collecting cylinder 6 made of a synthetic resin material is mounted below the nail-shaped stator 5n. The heat collecting cylinder 6 is assembled so that the upper end of the large diameter portion 6a comes into contact with the nail-shaped stator 5n and the lower end extends into the gas tank 2, and a conventional sintered core S is mounted therein. Has been. Further, as shown in FIGS. 3 to 4, three cutout grooves 6b, 6b ... Are formed at desired intervals on the upper end surface of the large diameter portion 6a. These cutout grooves 6b, 6b. The vaporization reservoir chamber is formed when it comes into contact with the lower surface of the stator 5n. The vaporization reservoir chamber is formed with a gap formed between the inner wall surface of the fitting recess 3a and the outer peripheral surface of the heat collecting tube 6 so as to communicate with the inside of the gas tank 2 (not shown) and the sintered core S. It effectively retains the heat of vaporization (from the gas tank 2) transmitted and supplied through, and prevents a rapid supply shortage of heat of vaporization due to ignition. Further, preferably, as shown in FIGS. 5 to 8, a plurality of vaporization heats are provided on the outer peripheral surface of the heat collecting tube 6 so as to open both ends to the upper and lower end surfaces in the longitudinal direction of the heat collecting tube 6. The supply channels 6c, 6c are provided so that at least the nail-shaped stator 5n and the gas tank 2 are surely communicated with each other, and the heat of the liquefied gas filling the gas tank 2 is more effectively surrounded by the vaporization chamber and the valve 5. It is better to be configured to supply to.

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 4a of the intermediate case 4 fitted in the vertical hole 3c of the tank upper lid 3, and the top surface thereof is pressed against the file wheel 7 by the pushing spring 10. Further, the valve operating lever 9 is provided with support shafts (not shown) projecting on both side surfaces at the center in the longitudinal direction, and both support shafts are provided with shaft holes (not shown) formed in the pair of support pieces. ) Is pivotally attached so that it can swing in the vertical direction. Thus, one end of the valve operating lever 9 is fitted into the neck portion of the gas ejection nozzle 5g through the slit 9a, and the operation piece portion 11 continuous with the other end is pushed down. When operated, the operation lever 9 swings around the support shaft to move the neck portion of the gas ejection nozzle 5g in the withdrawing direction. Further, at the lower part of the operation piece 11, a downwardly facing columnar portion 11a is integrally formed so as to project into and out of a hollow cylindrical hollow portion 3d formed in the tank upper lid 3.

In the gas lighter A of the present invention constructed 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. The valve opens, the liquefied gas in the gas tank 2 is sucked up to the nail-shaped stator 5n along the spiral groove of the coil spring 6 and the hollow region, and passes through the peripheral surface of the stator 5n to the filter 5o. Reach and vaporize. 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, and further passes through the hole 5i radially opened in the gas ejection nozzle 5g. The gas reaches the inside of the gas ejection passage 5h and is ejected outward from the tip of the gas ejection nozzle 5g. At that moment, the spark ignites and ignites so as to produce a flame of a desired length.

Further, when the cutout grooves 6b, 6b formed in the upper end surface of the heat collecting cylinder 6 come into contact with the lower surface of the nail-shaped stator 5n, a vaporization reservoir chamber is formed, and in the vaporization reservoir chamber, It is supplied through a sintering passage S and a gas passage (not shown) that communicates with the inside of the gas tank 2 formed by a gap formed between the inner wall surface of the fitting recess 3 a and the outer peripheral surface of the heat collecting tube 6. The heat of vaporization from the gas tank 2 is effectively retained, which prevents a rapid supply shortage of heat of vaporization. More preferably, as shown in FIG. 5 to FIG. 8, a plurality of vaporization heat supply passages 6c, 6c ... Are provided on the outer peripheral surface of the heat collecting cylinder 6 so that the nail-shaped stator 5n and the inside of the gas tank 2 are secured. The heat of the liquefied gas filled in the gas tank 2 reaches the vaporization chamber and the vicinity of the valve 5 more directly, and the liquefied gas in the gas tank 2 directly reaches the nail-shaped stator 5n. The heat of vaporization necessary for the vaporization of the fuel gas is sufficiently supplied to the flame and the flame can be stabilized. By the way, the gas lighter A of the present invention shows the desired flame length without error under normal temperature and pressure, and even under the condition of the outside temperature of 5 ° C, the lighter A does not cause any trouble like the conventional lighter using the sintered core. It was able to ignite, resulting in the elimination of the conventional metal heat collecting cylinder.

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 object of the present invention, and the present invention includes all of them. Is. For example, in the present embodiment, the vaporization heat supply path 6c is provided in the outer peripheral surface of the heat collecting cylinder 6, but the present invention is not limited to this, and is shown in FIGS. 9 to 10. As described above, a plurality of vaporization heat supply paths 6c are formed on the inner peripheral surface of the heat collecting cylinder 6, and the nail-shaped stator 5n is provided between the outer peripheral surface of the sintered core S and the inner peripheral surface of the heat collecting cylinder 6. It is also possible to form a vaporization heat supply path that connects the inside of the gas tank 2 with the inside of the gas tank 2. In this embodiment, the so-called flint type lighter is referred to, but it goes without saying that it can be applied to other oil lighters and piezo lighters, and the present invention includes all of these. To do.

[0022]

[Effect of the device]

 The present invention is configured as described above, and by molding the heat collecting cylinder with a synthetic resin material, further cost reduction is realized and a cutout groove is formed on the upper end surface of the heat collecting cylinder. If provided, a vaporization reservoir chamber is formed on the lower surface side of the nail-shaped stator, so that a gap formed between the inner wall surface of the fitting recess and the outer peripheral surface of the heat collecting cylinder is formed in the vaporization reservoir chamber. The heat of vaporization supplied from the gas tank through the gas passage (not shown) communicating with the inside of the gas tank and the sintering core effectively stays, and it is possible to prevent a rapid supply shortage of the heat of vaporization. It is a thing.

Further, if the vaporization heat supply path for communicating at least the nail-shaped stator and the inside of the gas tank is provided in the heat collecting cylinder, the nail-shaped stator and the inside of the gas tank are more surely communicated with each other. Therefore, the heat of the liquefied gas filling the gas tank can reach the vaporization chamber and the vicinity of the valve more effectively, and further, the liquefied gas in the gas tank can directly contact the nail-shaped stator, so that the liquefied gas It was possible to provide a gas lighter in which the heat of vaporization necessary for vaporization was sufficiently supplied to stabilize the flame.

As described above, the gas lighter of the present invention is a conventional gas lighter using a heat collecting cylinder, and by using a heat collecting cylinder made of synthetic resin, which is conventionally unsuitable, By virtue of positive communication between the gas tank and the inside of the gas tank, rather than supplying heat of vaporization, which is preferable to heat conduction by metal parts, the present invention was made of a synthetic resin material that is inexpensive and has excellent workability. It has been improved by a simple means to overcome the drawback of using a non-heat conductive material as a heat collecting cylinder while taking advantage of its characteristics, i.e., insufficient supply of heat of vaporization, suitable for mass production and low in price. The practical value of practicing the present invention is extremely great, for example, it can be supplied to a user.

[Brief description of drawings]

 The drawings show an example of the implementation of the present invention.

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

FIG. 2 is an enlarged vertical sectional view showing a main part of the gas lighter according to the present invention.

FIG. 3 is a perspective view of a heat collecting cylinder used in this embodiment.

FIG. 4 (A) is a plan view of the heat collecting cylinder, and FIG. 4 (B) is a sectional view taken along line IV-IV of FIG. 4 (A).

FIG. 5 is a perspective view showing another embodiment of the heat collecting cylinder.

6 (A) is a plan view of the heat collecting cylinder, and FIG. 6 (B) is a sectional view taken along line VI-VI of FIG. 6 (A).

FIG. 7 is a perspective view showing another embodiment of the heat collecting cylinder.

FIG. 8 (A) is a plan view of the heat collecting cylinder, and FIG. 8 (B) is a sectional view taken along line VIII-VIII of FIG. 8 (A).

FIG. 9 is a perspective view showing another embodiment of the heat collecting cylinder.

FIG. 10 (A) is a plan view of the heat collecting cylinder, FIG.
10B is a cross-sectional view taken along line XX of FIG.

FIG. 11 is a vertical sectional view showing a conventional gas lighter.

[Explanation of symbols]

 1 Lighter body 2 Gas tank 3 Tank top lid 3a Fitting recess 3b Through hole 3c Vertical hole 3d Cavity 4 Intermediate case 4a Firestone support hole 5 Valve 5a Open 5b Nozzle spiral 5c Nozzle bottom plug 5d Valve chamber 5e O-ring 5f Spring 5g Gas Jet nozzle 5h Gas jet 5i Perforation 5j Valve rubber 5k Valve mouth 5m O-ring 5n Nail-shaped stator 5o Filter 6 Heat collecting tube 6a Large diameter part 6b Notch groove 6c Evaporation heat supply path 7 File wheel 8 Firestone 9 Valve operating lever 10 Extrusion Spring 11 Operation Piece 11a Columnar Part S Sintered Core

Claims (3)

[Scope of utility model registration request] 1. A gas tank formed in a lighter main body, a tank upper lid that is airtightly integrated with an upper opening of the gas tank, an upper opening fitting recess formed integrally in the tank upper lid, A through hole that is opened in the center of the bottom surface of the fitting recess and communicates with the inside of the gas tank, a valve that is press-fitted into the fitting recess, and a nail-shaped stator that is fitted to the lower end of the valve through a ring-shaped filter. A sintered core hanging from the lower end of the nail-shaped stator into the gas tank, and an upper end surface of the lower surface of the nail-shaped stator contacting the upper surface of the sintered core to the inside of the gas tank A gas lighter provided with an extended heat collecting cylinder, wherein the heat collecting cylinder is formed of a synthetic resin material. 2. The gas lighter according to claim 1, wherein a cutout groove is provided in an upper end surface of the heat collecting cylinder. 3. The gas lighter according to claim 1, wherein the heat collecting cylinder is provided with a vaporization heat supply passage for communicating at least the nail-shaped stator and the inside of the gas tank.