JPH0318851Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement in a non-adjustable valve for a gas lighter that spouts a fixed amount of gas without adjustment when the valve is opened.

(Prior Art) Conventionally, gas lighters that eject a fixed amount of gas without adjustment when the valve is opened have airtightly integrated a tank top lid into the upper opening of a gas tank formed inside the lighter body. A fitting recess with an upward opening is integrally molded into the inner part, and a valve is press-fitted therein, a through hole is formed in the bottom of the fitting recess to communicate with the gas tank, and a porous film is formed on the lower end surface of the valve. A permeation filter consisting of a filter was held in place by caulking, etc., and a certain amount of gas was allowed to pass through when the valve was opened.

Further, as shown in FIG. 3, a tank top lid 3 is airtightly integrated into the upper opening of the gas tongue 2 formed inside the lighter body 1, and the upper opening integrally formed inside the tank top lid 3 is fitted. A fitting recess 3a, a through hole 3b opened at the center of the bottom of the fitting recess 3a and communicating into the gas tank 2, and a valve 4 press-fitted into the fitting recess 3a, and the valve 4
A valve chamber 4d is formed inside by a cylindrical lid-shaped nozzle spiral 4b having a through hole at the top end surface and a bottomed cylindrical nozzle bottom stopper 4c having a valve opening at the bottom surface.
A valve rubber 4j is provided protruding from the lower end of a gas ejection nozzle 4g which is incorporated into the gas ejection nozzle 4g via a spring or the like and whose upper end protrudes outward from the through hole of the nozzle spiral 4b. , and a nail-shaped stator 4m protruding from the lower end of the nozzle bottom plug 4c through a ring-shaped filter 4n;
The adjustable type valve includes a sintered core 5 positioned directly below the through hole 3b and supported, and the valve port is opened and closed by operating the gas jet nozzle 4g in the drawing direction. gaslighters had been devised.

(Problem to be solved by the invention) However, in the structure of the non-adjustable valve in which the transmission filter is caulked and held on the lower end surface of the valve as described above, the transmission filter is thin and small, and the transmission In addition to being forced to attach the filter, it sometimes resulted in poor fixation due to caulking, etc.

Furthermore, when the valve is opened, the permeation filter is pressed upward by the gas pressure and when it is relaxed, the permeation filter comes into contact with the lower end surface of the valve, so the gas permeation area of the permeation filter changes, causing the gas flow rate. It had the disadvantage that it became unstable.

In addition, with the structure of the adjustable valve shown in Figure 3, if the gas pressure in the gas tank increases in proportion to the rise in temperature, the flame length of the gas lighter will lengthen as the gas pressure increases, resulting in a stable flame. There was a problem where I couldn't get a manager.

This idea was created in view of the above problems.
To provide a non-adjustable valve for a gas lighter that simplifies the installation of a transmission filter by a simple means, secures a constant gas flow rate, and provides a stable flame length without being affected by gas pressure fluctuations. The purpose is to

(Means for Solving the Problems) In order to solve the above-mentioned problems and achieve the intended purpose, the configuration of the present invention is to airtightly integrate the upper opening of the gas tank formed in the lighter body. a tank top lid that has been made into a gas tank, a fitting recess with an upward opening integrally molded inside the tank top lid, a through hole opened at the center of the bottom surface of the fitting recess and communicating with the inside of the gas tank, and a through hole that is press-fitted into the fitting recess. In the non-adjustable valve for a gas lighter, the non-adjustable valve for a gas lighter is equipped with a nail-shaped stator fitted to the lower end of the valve via a ring-shaped filter, and a filter that allows a certain amount of gas to pass through when the valve is opened. The transmission filter is
The annular sleeve is welded and held by heat or ultrasonic waves, and the annular sleeve is press-fitted into the fitting recess to fit the transmission filter between the nail-shaped stator and the through hole. and a non-adjustable valve for a gas lighter comprising a groove provided on the lower end surface of the nail-like stator, and furthermore, the permeation filter is arranged so that the gas pressure in the gas tank increases in proportion to a rise in temperature. The non-adjustable valve of the gas lighter is pressed upward by the gas pressure to push up the nail-shaped stator and compress the ring-shaped filter.

(Function) In such non-adjustable valves for gas lighters, the transmission filter can be easily fixed in the tank top lid by simply press-fitting the sleeve to which the transmission filter is welded, making it easy to assemble using an automatic machine, and crimping. This eliminates the need for processing.

Additionally, when the gas pressure in the gas tank increases in proportion to the temperature rise, the gas pressure pushes the permeation filter upward, pushing up the nail-shaped stator and compressing the ring-shaped filter, increasing the ventilation resistance of the ring-shaped filter. It will be necessary to do so.

Furthermore, even if the permeation filter comes into contact with the nail-shaped stator, the grooves are recessed in the lower end of the nail-shaped stator, so a constant gas permeation area can be secured and a stable gas flow rate can be obtained. Become.

(Example) Next, an example of implementation of the present invention will be described with reference to the drawings.

A in the figure is a non-adjustable valve of the gas lighter according to the present invention, and the non-adjustable valve A of this gas lighter is a tank that is airtightly integrated into the upper opening of a gas tank 2 formed in the lighter body 1. It is equipped with an upper lid 3. The gas tank 2 is filled with liquefied gas, and a tank top lid 3 is integrated into the upper opening by ultrasonic welding to maintain pressure resistance and airtightness between the two. In addition, tank top lid 3
An ignition mechanism is mounted on the ignition mechanism via an intermediate holder (not shown).

A bottomed cylindrical fitting recess 3a with an open top is integrally formed in the tank top lid 3.
A through hole 3 communicating with the inside of the gas tank 2 is provided at the center of the bottom surface of the
b is open. And this fitting recess 3a
A valve 4 is press-fitted therein in an airtight manner.

This valve 4 includes a nozzle spiral 4b in the shape of a cylindrical lid having an opening 4a at the top end surface, and a nozzle bottom stopper 4c in the shape of a cylinder with a bottom fitted into the lower opening of the nozzle spiral 4b. It forms 4d,
A gas jet nozzle 4g is mounted in the valve chamber 4d with its upper end protruding outward from the opening 4a of the nozzle spiral 4b via a spiral O-ring 4e and a spring 4f. This gas jet nozzle 4g is
A perforation 4i communicating with the gas ejection passage 4h is opened in the radial direction of the outer peripheral surface, and a valve rubber 4j protruding from the lower end thereof is fitted to seal the lower opening of the gas ejection passage 4h. By moving the tip neck of the nozzle 4g in the drawing direction, the valve rubber 4j
Opening and closing operations of a valve port 4l, which will be described later, are performed on the lower end surface of the valve opening.

Further, an O-ring 4k is fitted onto the outer circumferential surface of the nozzle bottom plug 4c via an annular groove to maintain shielding properties from the fitting recess 3a that is in circumscribed contact therewith. Furthermore,
A valve port 4l is opened at the bottom of the nozzle bottom plug 4c, and the nail-shaped stator 4 is fitted into the valve port 41.
m is provided protrudingly. Further, a ring-shaped filter 4n is interposed between the nail-shaped stator 4m and the bottom surface of the nozzle bottom plug 4c. Further, as shown in FIG. 2, a plurality of grooves 4m ₁ , 4m _{1 .} . . are radially recessed in the lower end surface of the nail-shaped stator 4m.
As a result, when the valve is opened, a permeation filter (membrane filter 4 ₀ ), which will be described later, is
Even if it is pressed upward and relaxed and comes into contact with the nail-shaped stator 4m, a constant gas permeation surface can be ensured, so a stable gas flow rate can be maintained. Also,
By compressing and opening the ring-shaped filter 4n by rotating the nozzle spiral 4b, the ventilation resistance of the ring-shaped filter 4n can be changed, so that the set flame length can be freely adjusted.

On the other hand, just below the nail-shaped stator 4m, the gas tank 2
A membrane filter 4 that allows a certain amount of gas to pass through when the valve is opened is located above the through hole 3b that communicates with the valve.
o is installed.

This membrane filter 4o is held by welding to the lower end surface of the annular sleeve 4p by heat or ultrasonic waves, and the annular sleeve 4p is
p is press-fitted into the fitting recess 3a and fixed. At this time, when the gas pressure in the gas tank 2 increases in proportion to the temperature rise, the membrane filter 4o is pressed upward by the gas pressure, and the nail-shaped stator 4
Since the ring-shaped filter 4n is compressed by pushing up the ring-shaped filter 4n to increase the ventilation resistance of the ring-shaped filter 4n, it is possible to prevent the flame length from increasing due to the increase in gas pressure due to such temperature rise.

In addition, on the top surface of the membrane filter 4o,
By laminating polypropylene non-woven fabric with a thickness of 75 microns, a constant gas flow rate is ensured and a stable flame length is obtained without being affected by gas pressure fluctuations.

At that time, the material of the membrane filter 4o is, for example, a maximum pore diameter of 0.4 x 0.04 microns,
A microporous film made of polypropylene with a porosity of 45% and a thickness of 25 microns is preferred.

On the other hand, the open end of an operating lever (not shown) that is supported to be swingable up and down is fitted into the neck of the gas jet nozzle 4g that projects outward from the opening 4a of the nozzle spiral 4b. The neck of the gas ejection nozzle 4g is moved in the drawing direction by lifting the operating lever, and the lower end surface of the valve rubber 4j is separated from the upper surface of the valve port 41, opening the valve and starting to eject gas. It is attached.

In addition, the non-adjustable valve A of the gas lighter of the present invention
is not limited to this embodiment, and for example, a plurality of grooves 4 recessed in the lower end surface of the nail-shaped stator 4m.
Although m ₁ , 4m ₁ . . . are arranged radially, the arrangement is not limited to this and may be arranged in an appropriate shape.

(Effect of the invention) The present invention is constructed as described above, and the transmission filter is welded and held on the end face of the annular sleeve by heat or ultrasonic waves, and the annular sleeve is press-fitted into the fitting recess. a transmission filter is installed between the nail-shaped stator and the through hole,
In addition, by providing a groove on the lower end surface of the nail-shaped stator, the transmission filter can be easily fixed in the tank top lid by simply press-fitting the sleeve to which the transmission filter is welded, and can be assembled using an automatic machine. This method has the effect of being easy to perform.

In addition, the nozzle spiral can be used as is in the current adjustable lighter without any modification, which reduces costs, and eliminates the need for caulking of the transmission filter, which has the effect of eliminating the problem of fixing problems in the past. It also has the following.

Additionally, when the gas pressure in the gas tank increases in proportion to the temperature rise, the gas pressure pushes the permeation filter upward, pushing up the nail-shaped stator and compressing the ring-shaped filter, increasing the ventilation resistance of the ring-shaped filter. As a result, the flame length of the gas lighter can be prevented from increasing due to an increase in gas pressure, and a stable flame length can be obtained.

Furthermore, even if the permeation filter comes into contact with the nail-shaped stator, the grooves are formed in the lower end of the nail-shaped stator, so a constant gas permeation area can be secured and a stable gas flow rate can be obtained. be.

In this way, the non-adjustable valve of the gas lighter according to the present invention simplifies the installation of the permeation filter by a simple means, secures a constant gas flow rate, and is not affected by fluctuations in gas pressure. It has now become possible to provide a useful non-adjustable valve for gas lighters that provides a stable flame length.

[Brief explanation of the drawing]

Fig. 1 is an enlarged vertical cross-sectional view showing a non-adjustable valve of a gas lighter according to the present invention, Fig. 2 is an enlarged bottom view of a nail-shaped stator, and Fig. 3 is a vertical cross-sectional view of main parts showing a conventional adjustable valve. It is. 1... lighter body, 2... gas tank, 3...
...Tank top lid, 3a...Fitting recess, 3b...Through hole, 4...Valve, 4a...Opening, 4b...Nozzle spiral, 4c...Nozzle bottom plug, 4d...Valve chamber,
4e...Spiral O-ring, 4f...Nozzle spring, 4g...Gas ejection nozzle, 4h...Gas ejection path, 4i...Perforation, 4j...Valve rubber, 4k...O
Ring, 4l...Valve port, 4m...Nail-shaped stator, 4
m ₁ ...Groove, 4n...Ring filter, 4o
...Membrane filter, 4p...Sleeve.

Claims (1)

[Scope of claim for utility model registration] (1) A tank top lid that is airtightly integrated into the upper opening of the gas tank formed inside the lighter body;
A fitting recess with an upward opening integrally formed in the tank top lid, a through hole opened at the center of the bottom of the fitting recess and communicating into the gas tank, a valve press-fitted into the fitting recess, and a valve press-fitted into the fitting recess; In a non-adjustable valve for a gas lighter, the gas lighter is equipped with a nail-shaped stator fitted to the lower end via a ring-shaped filter, and a filter that allows a certain amount of gas to pass through when the valve is opened. The end face is welded and held by heat or ultrasonic waves, and the annular sleeve is press-fitted into the fitting recess so that the transmission filter is installed between the nail-like stator and the through hole, and
A non-adjustable valve for a gas lighter, characterized in that a groove is provided on the lower end surface of the nail-shaped stator. (2) When the gas pressure in the gas tank increases in proportion to the temperature rise, the permeation filter is pressed upward by the gas pressure, pushing up the nail-shaped stator and compressing the ring-shaped filter. 2. The non-adjustable valve for a gas lighter according to claim 1, wherein the non-adjustable valve is mounted in the following manner.