JPH01184330A - Gas lighter - Google Patents

Abstract

PURPOSE:To obtain a stable flame causing no variation with time, and to simpli fy the constitution in the title gas lighter by making the flow rate decision of vaporized gas obtained from a packed liquefied-petroleum gas by means of an orifice forming a specific aperture. CONSTITUTION:A liquefied petroleum gas 23 mainly composed of propane or butane is confined and packed in a fuel containing part 24, and an orifice 14 with an aperture of 20mum-70mum is provided. When a nozzle operating number 18 is lowered while a rotary file 19 is turned, the vaporized gas of the liquefied petroleum gas 23 packed within the fuel containing part is ejected to be ignited by a spark due to the friction of the rotary file 19 with a fling 21. The length of a flame in such a firing condition depends upon the aperture of the orifice 14 in a valve means A. Accordingly, even if the firing is carried out at a low temperature or during a long period of time, the stable flame length with no irregularity can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION A.Objective of the Invention (Field of Industrial Application) The present invention relates to a gas lighter that achieves uniform product quality and enhanced safety.

(Prior Art) Recently, as a composition of solidified liquefied petroleum gas used in gas lighters etc., as disclosed in Japanese Patent Application Laid-Open No. 61-283693, liquefied gas, solid agent and liquefied petroleum gas have been proposed. A compound obtained by adding a small amount of resin to a mixed solvent consisting of a solvent having compatibility with and an aprotic solvent has been developed.

In addition, the valve mechanism for releasing vaporized gas of a conventionally used gas lighter has a valve outer cylinder 2, as shown in Figure 3 of the drawing.
A sintered core 27 with a heat collecting cylinder 26 is supported at the lower part of the inside of the 5.
A core presser 27 is brought into contact with the upper end of this sintered core 27, and a filter member 29 (made of urethane foam or compressed felt is used to control the amount of gas released (flame length) is attached to the protrusion provided on this core presser 28. ) is loosely fitted into the filter member 29 inside the valve outer cylinder 25, and the ventilation section 3 of this is fitted loosely into the filter member 29.
A nozzle holder 32 with a ventilation hole 31 communicating with 0 is provided,
A valve rubber 33 for opening and closing the lower ventilation hole 31 and a nozzle 34 are installed inside the nozzle holder 32, and a fire power adjustment cylinder 35 is externally mounted on the nozzle holder 32, and one end is connected to the nozzle 34 at the other end. The spring 3 in contact with the fire force adjustment tube 35
Further, an intermediate case 38 for fixing to the lighter body 37 is provided on the valve outer cylinder 25, an adjustment lever 39 is provided on the fire force adjustment cylinder 35, and a standard nozzle pusher is provided on the upper part of the nozzle 34. This is a configuration in which a raising lever 40 is provided respectively.

Furthermore, as an improvement of this valve mechanism, Japanese Patent Application Laid-Open No. 51-14
8576, of normal porosity and good wettability with respect to hydrocarbons;
at least one filter comprising a porous membrane held between two chambers, an upstream wetting chamber and a downstream vaporizing chamber, corresponding to a desired flow rate based on a desired height of the flame. A pressure regulating device for a gas lighter has also been developed, characterized in that the porosity of the filter is determined directly during the manufacture of the lighter.

(Problem to be Solved by the Invention) However, when solidified liquefied petroleum gas is used in a gas lighter that employs the gas release valve mechanism shown in the drawing, the filter member is made of foamed urethane foam or compressed felt. Because the lighter is used, the size of the bubbles (pores) due to foaming is uneven, and changes over time, so the flame length changes from the flame length set at the time of lighter manufacturing, and the heat of vaporization tends to be insufficient. If ignition is carried out at low temperatures or for a long period of time, the flame is unstable, and the valve mechanism has many parts, resulting in high costs.

Furthermore, the above-mentioned pressure regulating device uses a filter, which is a thin film made of polypropylene, polyethylene, etc., so as mentioned above, it tends to change over time, and since the thin film is about 100 μm, It is difficult to handle it, and if the liquid fuel is used as it is, when the lighter is tilted or turned upside down, the flame will suddenly grow or raw gas will blow out, creating an extremely dangerous situation. There was a point.

The present invention was made to solve the above-mentioned conventional problems, and involves obtaining vaporized gas from solidified liquefied petroleum gas, and determining the flow rate of the vaporized gas using an orifice having a diameter of 30 μm to 70 μm. The object of the present invention is to provide a gas lighter that produces a stable flame that does not change over time, has a simple configuration, and reduces the cost of the gas lighter.

Configuration of the Invention (Means for Solving the Problems) The gas lighter according to the present invention for achieving the above object has the following features:
As shown in the embodiment, a valve mechanism A for releasing vaporized gas,
In the gas lighter 1 equipped with the ignition device B, a liquefied petroleum gas 23 mainly composed of propane and butane is sealed and solidified in the fuel storage part 24, and an orifice 14 having a diameter of 20 am to 70 μm is provided. , this orifice 14
The flow rate of vaporized gas passing through determines the maximum flame length.

(Function) When using the gas lighter according to the present invention, as shown in the embodiment, if the rotary file 19 is rotated and the nozzle operating member 18 is lowered at the same time, the valve mechanism A connected thereto can be removed.
The nozzle 12 rises and from its spout, the fuel storage part 2
The vaporized gas of the solidified liquefied petroleum gas 23 in the 4 is ejected and ignited by the spark caused by the friction of the rotary file 19 against the flint 21. The length of the flame in this ignition state is determined by the valve mechanism. It is determined by the diameter of the orifice 14 in A. For example, from Table 1, if the orifice diameter is 50 μm, the flame length will be 48 m, and if the orifice diameter is 165 μm, it will be 75 m (all at a temperature of 24°C). By determining the diameter of the orifice, we were able to obtain the same value at all times from the time of manufacture.

Also, if you release your finger from the nozzle operating member 18, the nozzle 12
The flame in the nozzle 12 goes down and the flame in the nozzle 12 goes out.

(Example) Next, an example of a gas lighter using solidified fuel according to the present invention will be described based on FIGS. 1 and 2 of the drawings.

A in the figure shows a valve mechanism for releasing vaporized gas constituting the lighter 1, which is fitted into a recess 3 formed in the upper part of the lighter body 2 so as to be able to rise and fall freely, and has a nozzle holder 5 provided with a ventilation part 4 in the center; The valve rubber 8 is fitted between the circumferential groove 6 provided on the intermediate outer circumference of the nozzle holder 5 and the step 7 provided in the middle of the recess 3, and the valve rubber 8 is fitted into the nozzle holder 5 and screwed onto the lighter body 2. A spring 10 for pushing up the valve rubber holder 9 and the nozzle holder 5 with one end against the bottom of the recess 3 and the other end against the nozzle holder 4.
, a ventilation hole 11 bored in the bottom of the recess 3, a nozzle 12 attached to the top of the nozzle holder 5, a hole 13 communicating with the ventilation part 4 through the circumferential groove 6 of the nozzle holder 5, and the nozzle holder 5. A thin metal plate 1 having a 50 μm orifice 14 corresponding to the ventilation portion 4 bored in the center between the nozzle 12 and the nozzle 12.
5 and more.

Note that the flow rate of the vaporized gas passing through this orifice 14 is
Determine maximum flame length.

B shows an ignition means provided in the lighter body 2, and a nozzle operating member 18 having a nozzle holding part 16 protruding from the upper side of the fitting part +6 to the lighter body 2 and a finger hook part 17 protruding from the other side. , a rotary file 19 pivotally supported on the lighter body 2, a flint 21 housed in a through hole 20 provided in the fitting part 15 of the nozzle operating member 16, and a flint 21 with one end attached to the lighter body 2 and the other end attached to the flint 21. The spring 22 presses the flint stone 21 against the rotary file 19.

23 is liquefied petroleum gas sealed in the fuel storage part 24 in the lighter body 2 and solidified, and sodium stearate 7
parts by weight and 2 parts by weight of rosin (or glycerin ester) are mixed and put into the fuel storage part 24, and the input part is closed by the valve mechanism A to maintain airtightness and pressure resistance. In the part 24, 10% propane, 30% isobutane, 60% normal butane from the nozzle part.
The liquefied petroleum gas mixed with the liquefied petroleum gas is pressurized to a pressure equal to or higher than its own vapor pressure, filled and sealed into the fuel storage part 24, and stirred and mixed with the sodium stearate etc. by applying vibration to the lighter body 2 at room temperature. Then, it is solidified in the fuel storage section 24.

In this example, for 30 parts by weight of liquefied petroleum gas containing propane and butane as the main components, sodium stearate was added in an amount of 4 to 8 parts by weight, and rosin or glycerin ester in an amount of 1 to 3 parts by weight. A certain blending ratio is preferred; if the amount of sodium stearate is less than 9 parts by weight, the liquefied petroleum gas will not be sufficiently dispersed and precipitation of sodium stearate will occur.

Furthermore, if the amount of rosin or glycerin ester is less than 1 part by weight, sufficient solidification strength will not be obtained and sodium stearate will scatter in powder form within the fuel storage section 24, causing damage to the vent hole 11 and orifice of the valve mechanism A. 14, and even if the amount exceeds 3 parts by weight, the solidification degree and solidification strength cannot be increased.

Furthermore, in the embodiment described above, liquefied petroleum gas containing sodium stearate, rosin (or glycerin ester), and propane and butane as main components is stirred and mixed in the fuel storage section 24 of the gas lighter 1 to solidify the liquefied petroleum gas. However, a method was adopted in which a large amount of each of the above-mentioned fuel ingredients was put into a separate pressure-resistant container, stirred and mixed several times to solidify it, and then taken out in a place where vaporization was suppressed and further solidified. In some cases, a molded product is cut into a predetermined size and used.

Furthermore, 95% or more isobutane may be used as the liquefied petroleum gas.

As described above, when using the gas lighter 1 according to this embodiment, the vaporized gas ejected from the nozzle 12 of the valve mechanism A is ignited by the ignition means B as in the conventional gas lighter, but the liquefied petroleum gas in the fuel storage section 24 is The liquefied petroleum gas becomes solidified, evaporates from the surface layer of the solidified fuel, and the generated vaporized gas is ejected from the nozzle 12 of the valve mechanism A, so that the liquefied petroleum gas loses its fluidity.

Further, the flame length due to ignition can be set in various ways depending on the diameter of the orifice 14 in the valve mechanism A, and the flow rate of vaporized gas passing through this orifice 14 determines the desired maximum flame length. When we measured the relationship between the diameter of the flame and the flame length, we were able to obtain the results shown in Table 1 and Figure 2.

(Leaving space below) Table 1 Relationship between orifice diameter and flame length As shown in Figure 1 and Figure 2 above, if the orifice diameter is less than 30 Itm, the flame length will be extremely short and will be about the same as a firefly. When used as a gas lighter, it becomes extremely difficult to light a cigarette, and if the diameter of the orifice is 70 μm or more, the flame length is 90111 nm.
Therefore, when the cigarette is ignited and lit, accidents such as burns to the face may occur, making it extremely dangerous to use.If the orifice diameter is set to 45 μm, the flame length was around 30 mn (at a temperature of 24°C), which was optimal.

Furthermore, regarding the relationship between the orifice diameter, flame length, and temperature, it was observed that the lower the temperature, the smaller the flame length, and conversely, the higher the temperature, the larger the flame length.

Furthermore, when the orifice diameter is set to 50 μm to 70 μm, the flame length is approximately 5011wn to 100 μm.The maximum flame length is determined by this orifice diameter6, and the flow rate of the vaporized gas is determined on the vaporized gas inflow side or outflow side of the orifice. By providing an adjusting filter and a valve, it is possible to provide a flame-adjustable gas lighter in which a desired maximum flame length is determined.

C6 Effects of the Invention Since the gas lighter according to the present invention has the above-mentioned configuration, by using solidified liquefied petroleum gas, it is possible to set a flame length more reliably than during manufacturing, and the flame length can be set over time. Since no change occurs and there is no shortage of heat of vaporization, a stable flame length without variation can be obtained even if ignition is performed at low temperatures or over a long period of time.

Use of solidified liquefied petroleum gas and 30μm to 70μm
Because it is configured with an orifice with a diameter of It is possible to aim at uplifting.

By simplifying the lever for adjusting the flow rate of vaporized gas, the sintered wick for fuel vaporization, the heat collecting cylinder, etc., it is possible to reduce the cost of the lighter.

It has the following unique effects.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing an embodiment of the gas lighter according to the present invention, Figure 2 is a diagram showing the relationship between the orifice diameter and flame length, and Figure 3 is a diagram showing a conventional valve mechanism for releasing vaporized gas. It is an enlarged sectional view. In the figure, 1 is a gas lighter, A is a valve mechanism, B is an ignition means,
14 is an orifice, 23 is a liquefied petroleum gas, and 24 is a fuel storage section. Intersect the original relaxation λ Roya and cross 1 = -t. Figure 2030 40 50 60 70 &)
(μm3ts4)-3ts41. . February 18, 1983 Commissioner of the Japan Patent Office 1 Kunio Kawa 1 Indication of the case Patent Application No. 6618 of 1988 2 Name of the invention Gaslighter 3 Relationship with the person making the amendment Patent application Representative: Fukuo Iwahori 4, Agent: 5, Date of amendment order (shipment date) Showa year, month, day 1, Akira, page 3, line 1 of the specification states, “Case 38 established.” 1 case 38 is established,'' is corrected. 1. The statement "if the aperture is 50 μm" on page 6, line 8 above should be corrected to read "if the aperture is 50 μm". 1. The same value of 1 could be obtained on the 12th line of page 6 above. , correct it to ``We were able to obtain the same value.'' 1-0 On page 9, line 7 above, the statement "Sodium stearate is less than 9 parts by weight" will be corrected to "Sodium stearate is less than 4 parts by weight." 1. In the 5th line of page 14 above, the phrase ``according to the above structure'' has been corrected to 1. ``Based on the above structure''.

Claims (1)

[Claims] In a gas lighter equipped with a valve mechanism for releasing vaporized gas and an ignition device, liquefied petroleum gas mainly composed of propane and butane is sealed and solidified in the fuel storage part, and an orifice from which the vaporized gas flows out is sealed. A gas lighter characterized in that the diameter is set to 30 μm to 70 μm.