JPS589082Y2 - gas lighter - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a gas lighter.

A conventional gas lighter, particularly a disposable gas lighter, has a valve mounting structure and a fuel gas flow rate adjustment mechanism configured as typified by what is shown in FIG.

That is, a hole 3 is provided in the main body 1 that communicates from the fuel chamber 2 to the upper outside, and a first hole made of felt or the like is provided at the bottom of the hole.
After installing the pressure reducing material made by stacking the filter 4, the aperture plate 5, and a second filter similarly made of felt, etc.,
The male threaded part 8 of the burner valve 7 is provided at the upper part of the hole 3 and is screwed into the female threaded part 9, and the backing 10 attached to the lower part of the burner valve is brought into close contact with the inner circumference of the lower part of the hole 3, and the upper end of the burner valve T is Adjust the adjustment lever 11 fixed to the windshield 1
The adjustment lever 11 is placed in the horizontal hole 13 and moved to adjust the valve T.
By rotating the , the gap between the bottom of the valve I that presses the filters 4 and 6 and the bottom of the hole 3 is adjusted, and the density of the filters 4 and 6 is changed to adjust the gas outflow amount, that is, the height of the flame. It is now possible to make adjustments.

14 is a nozzle, 15 is an ejection valve, 16 is a rubber valve, 1T is a spring, and 18 is a backing.

Due to the above-described configuration, firstly, since the gas flow rate is adjusted by moving the valve I up and down with respect to the main body 1 using a pair of screws, there is a gap between the outer circumferential surface of the valve T and the inner circumferential surface of the hole 3. Since there is inevitably a gap 75-W in the gap 75-W and pressurized gas tends to leak, the backing 10 is absolutely necessary to prevent this.

Secondly, since it is necessary to process the female threaded portion of the main body 1 and the male threaded portion of the valve γ and to attach the backing 10, a large number of man-hours are required, and the lighter inevitably becomes expensive.

Thirdly, the height of the flame is adjusted depending on the screwing depth of the valve T into the main body 1, but if the rotation range of the adjustment lever is not restricted, the valve will be rotated without limit and the filter 4
, 6 will not work, and there is a danger that raw gas will leak from the gap between the valve T and the main body 1 despite the presence of the backing 10, so the rotation range of the adjustment lever is restricted. It is necessary to provide the horizontally elongated hole 13 to
The number of man-hours required for the windshield 12 increases, leading to an increase in cost.

In addition, since the adjustment lever 11 protrudes from the outer surface of the main body, it may be moved to the position where the height of the flame is at its maximum without realizing it, and there is a risk of burns if used without knowing this. This invention has a completely new configuration for the valve mounting structure and the fuel gas flow rate adjustment mechanism, which simplifies the structure and makes manufacturing easier. is absolute, and yet,
It is an object of the present invention to provide a gas lighter that can easily and quickly adjust the gas flow rate during manufacture.

The gas lighter according to this invention has a decompression chamber between the gas outlet of the fuel chamber and the valve seat press-fitted into the main body, and the decompression material is stored in the decompression chamber. In addition to providing a hole for screwing the flow rate adjustment screw from the
A diaphragm is integrally formed in the main body between the decompression chamber and the screw hole to partition the chamber and to change the reduction rate of the decompression material, and the screw presses the diaphragm. It is.

Next, two embodiments of this invention will be explained based on the drawings from FIG. 2 onwards.

In the first embodiment, the main body 1' is provided with two bottomed cylindrical holes 19 and 20 that open upward.

One hole 19 is divided into three parts: an upper part, a middle part, and a lower part, and a step part 21 is formed between the middle part and the lower part by reducing the diameter of the lower part.

At the bottom of the hole 19 is a gas outlet 22 of the fuel chamber 2'.
are in communication in a direction perpendicular to the axis of the hole 19.

Further, the bottom of the hole 19 is sealed by a diaphragm 23 integrally formed with the main body 1'.

The diaphragm 23 integrally includes a peripheral hinge portion 24 and a central disc-shaped pressing portion 25, and is capable of reciprocating movement in the axial direction of the hole 19.

A slider 26 is fitted into the lower part of the hole 19 so as to be slidable in the axial direction of the hole 19 .

As shown in FIG. 3, this slider 26 has a bottomed cylindrical shape and has a hollow portion 27, the outer diameter of which is slightly smaller than the diameter of the lower hole portion 19a, and has a groove 28 on the outer periphery. The groove communicates with the hollow portion 2γ through a hole 29 provided in the peripheral wall.

A filter 30 is packed in the hollow part of the slider 26, with the bottom facing the pressing part 25 of the diaphragm 23.

A cup-shaped valve seat 31 is press-fitted into the intermediate portion of the hole 19, and is fixed with the lower surface of the peripheral wall abutting against the step portion 21.

The valve seat 31 is made of a material with a high thermal conductivity, such as brass, in order to promote volatilization of the fuel gas, and a pressure reducing member consisting of a first filter 33, a throttle plate 34, and a second filter 35 is placed in a downwardly opening recess 32. It has a hole 36 in the center of the upper surface that opens the recess 32 upward.

By press-fitting the valve seat 31 into the intermediate portion in this manner, a decompression chamber is formed between the hole 36 of the valve seat 31 and the gas outlet 22.

Since the valve seat 31 is press-fitted, there is no gap between the outer peripheral surface of the valve seat and the inner peripheral surface of the hole 19.

An adjustment screw 3T is screwed into the main body 1 from the outside of the main body toward the diaphragm on the opposite side of the diaphragm 23 from the decompression chamber and on the outside of the fuel chamber 2'.

Next, a rubber valve 10' is attached to the upper part of the hole 19 (at the nested end).
A cylindrical valve body 15' having a spring 17' fixed thereto is inserted with a spring 17' wound around its outer periphery and a backing 18' attached, and the intermediate case 3 is inserted into the other hole 20.
Inserting the 8-6 press cylinder 39 and passing the nozzle 14' provided at the upper end of the valve body 15' into the hole 40 provided in the intermediate case 38, the upper surface of the intermediate case is connected to the upper surface of the main body 1'. By fixing the valve body 15' with adhesive, the spring 17' urges the valve body 15' downward, and the rubber valve 1
At 0', the valve seat 31=7) holds the FL36 in a sealed state.

41 is a flint, 42 is a 6 push spring, 43 is a stay,
44 is a file wheel for firing (hereinafter simply referred to as a file or a file for firing).

), 45 is a rotor, 46 is a nozzle lever, and 47 is a windshield.

In the above-described configuration, at the initial stage of completion, the adjustment screw 37 is screwed in to such an extent that its tip does not apply any pressing force to the diaphragm 23.

In this manner, when no finger pressure is applied to the pusher portion 46' of the nozzle lever 46, the rubber valve 10' seals the hole 36 of the valve seat 31 with the spring 17', so there is no risk of fuel gas leaking.

Also, apply finger pressure to the pusher part 46' to release the nozzle lever 46.
When the nozzle 14' is lifted up against the spring 11' via It passes through the filter 30 in the recess 27 and is depressurized, and is further depressurized by the filter 33, the throttle plate 34, and the filter 35 in the valve seat 31, and flows out from the hole 36 to the upper part of the hole 19.

This reduced pressure fuel gas rises inside the valve body 15' and is ejected to the outside from the nozzle 14'.

Therefore, when the rotor 45 is rotated and the pusher portion 46' is pushed, the fire is ignited.

In this case, the height of the flame generated from the nozzle is determined by pressing the valve seat 31 into the hole 19 of the main body 1' and adjusting the height of the flame generated from the step part 21, since the adjusting screw 37 does not apply a pressing force to the diaphragm 23.
Put the filter 30.33 in the state where the receiver is stopped.
．． It is determined by the overall density of 35.

Therefore, the filter 33 in the state where the valve seat 31 is press-fitted
．． If the density of 35 is set so that the flame reaches the maximum height required, any lighter can be manufactured to a predetermined limited height without having to adjust the flame height by simply press-fitting the valve seat at the time of manufacturing. The best possible flame is formed, and unnecessary large-scale outflow of fuel gas and formation of dangerously high flames can be prevented.

Then, when the adjustment screw 37 is tightened and a pressing force is applied to the diaphragm 23 from its tip, the diaphragm 23
3 moves in the axial direction of the hole 19 and slides the slider 26 in the axial direction inside the valve seat, so that the filters 33 and 35 in the valve seat 31 are compressed and become denser, so that the fuel gas flow rate decreases.

Therefore, since the height of the flame gradually decreases, it is sufficient to stop the rotation of the adjusting screw 3T when the appropriate height is reached.

In this way, the height of the flame can be easily and continuously adjusted during manufacturing.

In the first embodiment described above, the structure is such that the valve body 15' is moved upward by the nozzle lever 46 to blow out the fuel gas, so the adjustment screw 37 that is screwed into the main body from the outside of the main body 1' needs to be long. Therefore, the threaded hole 37' for the adjustment leg becomes longer, which has the drawback of reducing the volume of the fuel chamber 2' (75DJ==75).Furthermore, since the valve body 15' is moved up and down, the fuel in the upper part of the hole 19 is reduced. Although the gas pressure is considerably reduced, a backing 18' is required to completely prevent leakage, and the manufacturing cost of the valve body 15' is high because it is necessary to have high processing accuracy. Furthermore, since the nozzle 14' is lifted up by the nozzle lever 46, unreasonable force is applied to the nozzle, similar to the conventional product shown in FIG. 1, which may cause gas leakage due to wear of the valve body during long-term use. be.

The second embodiment shown in the drawings from FIG. 4 onwards skillfully solves the drawbacks of the first embodiment described above.

The second embodiment will be described below.

In this embodiment, the hole 19 in which the decompression chamber is provided is formed from one short side ai of the main body 1' toward the other short side a2 at right angles to the height direction of the lighter. A diaphragm 23 is integrally molded with the main body 1'' at the bottom at a position close to the side surface a2, and a simple disk-shaped slider 26' is inserted into the bottom of the hole 19 so as to be slidable in the axial direction of the hole. After that, the valve seat 31 containing the pressure reducing material 33, 34, 35 is press-fitted into the small diameter part of the hole 19, and the receiving part is stopped at the stepped part 21, thereby connecting the gas outlet 22 of the fuel chamber 2' and the valve seat 31.
A decompression chamber is formed between the holes 36.

A screw hole 37' is provided on the opposite side of the diaphragm 23 from the decompression chamber and opens on the other short side a2 of the main body, into which a short adjustment screw 37 is screwed.

In this embodiment, a cylindrical valve body 48 is inserted into the hole 19 on the outside of the valve seat 31 so as to be slidable in the axial direction of the hole 19 with high airtightness.

The valve body 48 has a blind hole 49 that opens rearward, and a spring 50, which is partially inserted into the blind hole, is engaged with a protrusion 52 of a closing plate 51 fixed to the main body, so that the valve seat 3 is always closed.
A rubber valve 53 fixed to the tip of the valve body 48 presses against the valve seat 31 and seals the hole 36.

Further, the valve body 48 has a slot 54 extending upward from near the rear end of the hole 19 and in a slot 54 cut in the long side surface of the lighter, and bent in the direction of the long side surface of the lighter. , and a valve pusher lever 55 extending along its long side to near a rotor 45', which will be described later, is integrally formed.

A hand-pressing portion 56 of the valve-pressing lever 55 protrudes from the long side surface to such an extent that it can be moved by placing a fingertip thereon.

A rotor 45' having a firing file 44' fixed to the corner where the short side surface a2 of the above-mentioned body and the long side side surface from which the hand press part 56 protrudes is a bearing integrally provided in the main body 1''. It is rotatably supported by sections 57 and 58.

41 is a flint, and 42 is a 6-press spring.

The rotor 45' has a knurl cut on its outer periphery, and projects slightly beyond the long side surface.

In this way, when the rotor 45' is rotated, for example, with the thumb, the thumb separated from the rotor 45' pushes the hand pusher 56, and the valve body 48 is pushed through the valve pusher lever 55 against the valve pusher spring 50 to open the valve. It will be slid in the direction away from the seat 31.

Therefore, since the rubber valve 53 opens the hole 36, the fuel gas whose pressure is reduced in the pressure reduction chamber flows out from the hole 36 into the space 59 between the valve body 48 and the valve seat 31.

The lower end of the guideway 60 provided in the main body 1'' opens into this space.

The guide path 60 is opened on the upper surface of the main body 1'' on a tangent to the pyrotechnic file at the point of contact between the flint 41 and the pyrotechnic file 44, and a nozzle 61 is fixed to the opening.

Therefore, the fuel gas flowing out into the space 59 due to the retraction of the valve body 48 is ejected upward from the nozzle 61 through the guide path 60, and is ignited by the spark generated by the rotation of the ignition file 44'.

The valve pusher lever 55 is integrally formed with a shutter 62 that extends upwardly within the rod 55 and parallel to the upper surface of the main body.

When the shutter is returned by the spring 50 when the valve press lever 55 is released, the shutter covers the nozzle 61 and seals the vent 64 provided in the windshield 63 above the nozzle.

At the same time, the valve body 48 returns and the rubber valve 53 is moved to the valve seat 31.
Since the hole 36 is sealed, the supply of fuel gas to the nozzle 61 is stopped.

Therefore, the flame from the nozzle 61 is completely extinguished by stopping the fuel gas supply by the valve body 48, stopping the oxygen supply by the shutter 62, and lowering the temperature.

Moreover, when you first release your finger from the valve pusher lever 55,
Since the shutter 62 seals the crater 64, flames are prevented from flying out of the crater and creating a dangerous condition.

As described above, according to the second embodiment, the hole 19 forming the decompression chamber is provided in the horizontal direction, and the adjusting screw 37 is screwed in from the side of the lighter. The throttle rate of the chamber can be adjusted, that is, the flow rate of fuel gas can be adjusted, and the difficulty of reducing the volume of the fuel chamber 2' is solved.

Further, since the valve body 48 and the nozzle 61 are separate bodies, and the fuel gas that has passed through the decompression chamber is ejected from the nozzle 61 through the guide path 60 from between the retreated valve body 48 and the valve seat 31, It is now possible to use a fixed nozzle.

In the space 59 between the valve seat 31 and the valve body 48, a valve 5 is provided.
Fuel gas flows out only when 3 is opened.

However, the pressure of this fuel gas is sufficiently reduced in the decompression chamber, and the flow resistance between the outer circumferential surface of the valve body 48 and the inner circumferential surface of the hole 19 is extremely large.
And since the flow resistance in the direction of the nozzle 61 is much smaller,
The gas flowing out into the space 59 passes through the guide path 60 and enters the nozzle 6.
It will be ejected from 1.

Therefore, no gas leaks between the valve body 48 and the inner circumferential surface of the hole 19, so no backing is required.

The longer the length of the portion of the valve body 48 that contacts the inner circumferential surface of the hole 19 in the hole axis direction, the lower the possibility of gas leakage.

Further, according to the second embodiment, the nozzle 61 is fixed to the main body, and unlike the conventional product or the first embodiment, there is no need for a part to hook on the lever, and no external force is applied, so the nozzle is small and inexpensive. Anything is fine.

Furthermore, the valve body 48 is opened via the valve pusher lever 55 by a finger moving in the direction of rotating the firing file 44'.
Since the lighter is moved smoothly in the axial direction, there is no possibility of gradual gas leakage even during long-term use of the lighter.

The unique effects of this invention explained above can be summarized as follows.

First, since the valve seat is press-fitted into the hole, there is no gap between the inner circumferential surface of the hole and the outer circumferential surface of the valve seat, and the diaphragm is formed integrally with the main body and can be screwed in from the outside of the main body. Since the fuel gas flow rate is adjusted by the adjusting screw, gas leakage does not occur from the movable part for adjusting the flow rate.

Secondly, since the valve seat is formed into a bottomed cylindrical shape, and the pressure reducing material such as a filter is stuffed inside the valve seat, the pressure reducing material has a predetermined pressure reduction rate by simply press-fitting it into the valve seat during manufacture.

Therefore, if the density of the filter, that is, the pressure reduction rate, is set so that the required maximum flame height is formed at the time of ignition by simply press-fitting the valve seat during manufacturing without screwing in the adjustment screw, it is possible to directly Since all lighters form a flame that is initially limited to a certain height, there is no need to waste large amounts of raw gas when adjusting the flow rate in the factory, or create a dangerous situation with an abnormally long flame. do not have.

In addition, when adjusting the height of the flame in a factory, simply screwing in the adjustment screw causes the flame to gradually lower from the highest height, making it easy and quick to adjust, and allowing workers or users to adjust the height. Even if the adjusting screw accidentally falls off during the process, there will be no gas leak, and the flame will not rise above the height specified by the depth of press-fit of the valve seat, so it is safe.

Third, the height of the flame is adjusted by rotating the adjustment screw, so there is no chance that the adjustment screw will be turned to the side that maximizes the flame height while carrying the lighter. Therefore, it is highly safe during use.

Fourthly, if the hole into which the valve seat is press-fitted is provided so that its axis is horizontal, it is possible to avoid reducing the volume of the fuel chamber in order to provide a screw hole for the adjustment screw, and A short one is sufficient, and the valve must be moved horizontally to open it, so if the ignition file is installed to rotate around a vertical axis, the direction of rotation of the ignition file and the direction of movement when opening the valve can be adjusted. Since they match, it is possible to integrate the insertion lever and the valve body.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional disposable gas lighter. 2 and 3 show a first embodiment of this invention, with FIG. 2 being a sectional view and FIG. 3 being a perspective view of the slider. Figure 4 and the following show the second embodiment of this invention.
The figure is a front view, Figure 5 is a plan view, Figure 6 is a side view, Figure 7 is a sectional view taken along the line ■-■ in Figure 6, Figure 8 is a sectional view taken along the line ■-■ in Figure 4, and Figure 9 is a sectional view taken along the line - in Figure 4, Figure 0 is a sectional view taken along the line X-X in Figure 7, Figure 11 is a sectional view taken along the line M-M in Figure 5, and Figure 12 is a sectional view taken along the line M-M in Figure 5. FIG. 3 is a perspective view of a component in which a body, an insertion lever, and a shutter are integrally formed. 1'...Main body, 2'...Fuel chamber, 19
...hole, 22...gas outlet, 23...
...Diaphragm, 24...Hinge part, 2
5... Cape pressure part, 26... Slider, 31...
... Valve seat, 30, 33. 35 ... Filter (pressure reducing material), 37 ... Adjustment screw, 14'...
... Nozzle, 15' ... Valve body, 17' ・
... Spring, 41 ... Flint, 42.
...6 push spring, 43...file,
46...Nozzle lever alta2...
Buccal side, 48...hull, 50...spring, 51...detector plate, 53...rubber valve, 55...intermediate Insert lever 56... Hand push part, 57, 58... Bearing part, 60...
・Taxiway, 61...Nozzle, 62...
Shutter.

Claims (4)

[Scope of utility model registration request] (1) The main body has an opening in one direction outside the fuel chamber,
In addition, a hole whose bottom is sealed by a diaphragm integrally formed with the main body is provided, and a valve seat filled with pressure reducing material is press-fitted into the hole, and the fuel is placed between the valve seat and the diaphragm. A decompression chamber is formed that communicates with the gas outlet of the chamber and the hole in the valve seat, and is always urged in the direction of the valve seat in a silk seal provided in the main body to seal the hole in the valve seat. A valve body is provided so as to be movable in the axial direction of the hole of the main body, and an adjustment screw is screwed into the main body from the outside of the main body on the opposite side of the decompression chamber with respect to the diaphragm, and the diaphragm is advanced and retreated by the adjustment screw. A gas lighter characterized in that the density of the pressure reducing material is adjusted via a diaphragm. (2) The hole into which the valve seat is press-fitted has a vertical axis, and
The valve body is provided with an upward opening, is press-fitted into the hole, is always biased toward the valve seat by a spring, and has an integral nozzle that projects upward from the opening, and is movable up and down. A gas lighter according to claim (1) of the utility model registration, characterized in that the gas lighter is provided with a nozzle lever and is connected to a nozzle lever. (3) Request for registration of a utility model characterized in that a hole into which a valve seat is press-fitted is provided with a horizontal axis, and an adjustment screw that can move forward and backward with respect to the diaphragm is screwed into the main body from the outside of the short side of the lighter. The gas lighter according to scope item (1). (4) A hole into which the valve seat is press-fitted is provided with a horizontal axis, and the valve body is always urged toward the valve seat in the hole on the opposite side of the diaphragm with respect to the valve seat press-fitted into the hole, so that the axis of the hole The main body is provided with a guide path which is inserted so as to be airtight and slidable in the direction of the main body, and which guides the fuel gas flowing into the space between the valve body and the valve seat when the valve body retreats to a nozzle fixed to the upper surface of the main body. A gas lighter according to claim 1 or 3 of the utility model registration claim.