JPH0740847Y2 - Plastic disposable gas lighter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plastic disposable gas lighter.

[0002]

2. Description of the Related Art In a conventional plastic disposable gas lighter, as shown in FIGS. 1 and 2, a valve pedestal 1 and a gas tank 2 are ultrasonically welded together at a position of a welding line 201 to form a sponge material. The suction rod 3 is fitted into the metal sleeve 4 by the projecting edge 301 provided above the suction rod 3, and a notch 402 is formed in the large diameter portion 401 at the top end of the sleeve 4 to use for gas flow. The metal sleeve 4 is attached in a small diameter hole in the accommodation hole 101 on the valve body pedestal 1, the shaft end 501 is attached to the upper end of the metal lid 5, and one hollow sponge type throttle washer 6 is fitted to the shaft end 501. In addition, the outer diameters of the metal lid 5 and the throttle washer 6 are made slightly smaller than the inner diameter of the medium-diameter hole in the accommodation hole 101, an appropriate gap is provided between the two, and the liquid gas is sponge suction rod 3 After being sucked up by the notch 402 of the metal sleeve 4, the gas is transmitted to the sponge throttle washer 6 along the gap 102 by the surface tension. In such a state, when the bottom lid outlet hole 902 is opened, the gas is vaporized and ejected.

The valve body pedestal 1 has a female screw 103 formed on the wall portion of the large diameter hole in the accommodation hole 101, the valve body bolt 7 is screwed into the accommodation hole 101 with the male screw 701, and the bottom portion 801 of the gas nozzle 8 is inserted. The rubber lid 802 is pushed in, and the closing spring 803 is inserted on the outer diameter of the gas nozzle 8,
A sealing O-ring 805 is attached to the end of the nozzle head 804, and all of these assembly members are passed through the upper surface of the bottom lid 9, and the whole is pushed into the valve body bolt 7 and placed on the groove at the end of the bottom lid 9. Wears a closed O-ring 901.

Further, as shown in FIG. 1, the conventional flame adjusting device for a gas lighter comprises a flame adjusting lever 702.
A ratchet hole 703 is formed in the flame adjusting lever 702, and a ratchet ring 704 of the valve body bolt 7 is fitted in the ratchet hole 703 so that the user can adjust the flame adjusting lever 702.
When is rotated, the valve body bolt 7 rotates and moves back and forth. When the bottom lid 9 presses the sponge type throttle washer 6, the thickness of the sponge type throttle washer 6 is adjusted to control the gas flow rate. When the user turns the ignition wheel, the lighter stone is rubbed and a spark is ejected, and at the same time, when the pressing plate 10 is pressed, the pressing plate 10 rotates its rotating shaft 1001.
With the fulcrum as a fulcrum, the neck plate of the nozzle head 8 is held by the holding plate 1002 at the front end, and the nozzle is pulled up by the lever principle, and the outlet hole 902 of the bottom lid 9 is opened without being blocked by the rubber lid 802. Then, the gas is vaporized here to become gas air, which is ejected from the guide hole of the nozzle 8 and ignited by a spark.

[0005]

[Problems to be Solved by the Invention] The above-mentioned prior art disposable gas lighter has a complicated structure, has a large number of parts, is troublesome to mount and assemble, requires a high manufacturing cost, and is difficult to carry out automated work. Has become.

The object of the present invention is to reduce the number of parts, its structure is simple, it can be integrally formed, the manufacturing cost of the parts can be greatly reduced, and at the same time, the processing cost of mounting and combination is low. It is to provide a disposable gas lighter.

[0007]

A plastic disposable gas lighter according to the present invention comprises a gas tank formed by injection molding of a plastic material, a valve body pedestal, and an ignition pedestal. A capillary groove extending from the bottom of the tank to the gas outlet hole formed in the valve body pedestal is provided, and the gas outlet hole is communicated with the valve body accommodation hole formed in the valve body pedestal, and the valve body accommodation hole has a metal double head lid. With the body inside, a gas control valve is screwed in through a sponge-type throttle washer, and a gas hole that communicates with the gas outlet hole through the sponge-type throttle washer and a nozzle accommodating hole that communicates with the valve hole. ,
A large-diameter disk with ratchet teeth on the outer circumference and a ring piece with a cutout are provided.A lock pin of the protective cover is engaged with the cutout of the ring piece, and a valve hole is provided in the nozzle accommodating hole of the gas control valve. A gas nozzle having a closed rubber lid for opening and closing and a gas flow hole is provided, and a pressing plate having a holding plate for holding the gas nozzle at one end is rotatably attached to the ignition pedestal, and the other end of the pressing plate is provided. The gas nozzle is provided with a leaf spring that urges the pressing plate so that the closing rubber lid closes the valve hole.

[0008]

In the disposable gas lighter according to the present invention, the liquid gas in the gas tank enters the gas outlet hole through the capillary groove in the gas tank, and the gap between the metal double head lid and the valve body receiving hole is further increased. Flow to the valve hole through the sponge-like slot washer, where the ignition wheel is rotated to generate a spark and at the same time the pressing plate is pressed against the leaf spring, the pressing plate rotates. Then, the holding plate at one end lifts the gas nozzle, the closed rubber lid of the gas nozzle opens the valve hole, the liquid gas in the valve hole is vaporized and injected through the flow hole of the gas control valve, sparks of the ignition wheel. Is ignited on the gas nozzle by. When the gas control valve is rotated by the ratchet teeth, the thickness of the sponge throttle washer between the gas control valve and the metal double head lid is controlled to adjust the flame,
The flame is limited by the notch formed in the ring piece of the gas control valve and the retaining pin of the protective cover.

[0009]

EXAMPLE An example of the disposable gas lighter according to the present invention will be described in detail by classifying it into the following three configurations.

(1) Gas guide device In the present invention, the spongy suction rod of the conventional disposable gas lighter is removed, thus saving the cost of this part and the installation cost.

As shown in FIG. 4, in the disposable gas lighter of the present invention, two holding walls 1102 are directly formed on the inner wall 1101 for the reinforcing wall in the plastic gas tank 11 and extend from the bottom to the gas outlet hole 1103. is doing. A capillary groove 1104 is provided between the two holding walls 1102 (see FIG. 4).
The groove width of the gas outlet hole 1103 is formed by capillary action of liquid gas in the capillary groove 1104 due to its surface tension.
It has a suitable width so that it can be raised up to.

Compared with the conventional disposable gas lighter, the structure of the capillary groove of the present invention does not need to be attached and never fails, so that the function of raising the liquid gas is enhanced,
The parts can be simplified and the combination and installation costs can be reduced.

(2) Gas Regulator This gas regulator is divided into (A) gas regulating mechanism and (B) gas control valve. Next, each will be described.

(A) Gas adjusting device As shown in FIG. 3, the disposable gas lighter according to the present invention has a gas tank 11, an ignition pedestal 12, and a valve body pedestal 13 which are integrally formed by injection molding with a plastic material. In this case, an open opening 1105 is formed at the bottom of the gas tank 11, and after the liquid gas filling work is completed, the bottom lid 14 is welded to the opening 1105 of the gas tank 11 by an ultrasonic welder.

The gas outlet hole 1103 of the gas tank 11 communicates with the valve body accommodation hole 1301 of the valve body pedestal 13, and the bottom portion 1302 of the accommodation hole 1301 has a groove hole 1 as shown in FIG.
303 is opened, and this slot 1303 is a gas outlet hole 110.
3, the metal double head lid 15 is arranged in the bottom portion 1302 of the accommodation hole, and the cylindrical body 1501 of the metal double head lid 15 is slightly smaller than the inner diameter of the accommodation hole. Since the lower head portion 1503 of the metallic double-head cover 15 extends into the gas outlet hole 1103, an appropriate gap 1502 is maintained in the head portion 15
03 and the gas outlet hole 1103, an appropriate gap 150
Holds 4 The upper head portion 1505 of the metallic double-head cover 15 first penetrates the circular sponge throttle washer 16 and further extends into the valve hole 1708 at the bottom of the gas control valve 17 to form the upper head portion 1505.
And an appropriate gap 1506 between it and its valve hole 1708. The width of the gap 1506 is of a suitable width that allows the liquid gas to rise within the gap by capillary action due to its surface tension.

Due to the above-mentioned structure, liquid gas flows from the capillary groove 1104 to the gas outlet hole 1103 by the capillary phenomenon.
To the inside of the gap 1502 through the slot 1303 along the gap 1504, and then penetrates into the sponge-type throttle washer 16 to reach the gap 1506. Then, when the gas nozzle 18 is opened, the liquid gas vaporizes and escapes. The above is the gas adjusting mechanism of the present invention, and many parts are simplified as compared with the conventional disposable gas lighter.

(B) Gas control valve The present invention has a valve body bolt 7 and a bottom cover 9 of a conventional disposable gas lighter as shown in FIG.
It is simplified to 7. The gas control valve 17 has a male screw 1701 engraved below the valve body, and has a neck 1702 fitted with a leak-proof O-ring 1703. Thus, the gas control valve 17 has a large disc 1 above it.
704, a ratchet tooth 1705 is engraved on the circumference thereof, a ring piece 1706 is provided on the upper part of the large diameter disc 1704, and an accommodation hole 1707 for disposing the gas nozzle 18 is provided in the center of the valve body of the gas control valve 17. Perforation and accommodation hole 17
A valve hole 1708 is provided at the center of 07.

In the gas control valve 17, the male screw 1701 is turned to be screwed into the accommodation hole of the valve body pedestal 13, and the ratchet teeth 1705 thereof are rotated to press the sponge throttle washer 16 to set the gas flow rate. I do.

Usually, after completing the flame adjustment work of the lighter,
Be sure to limit the rotation range of the gas control valve 17 and set the maximum and minimum of the flame in advance. Therefore, the valve body bolts of conventional disposable plastic gas lighters are plastic products, and their thread cutting lines are all slightly different, and even if the gas flow rate is the same, the ratchet rings of each valve body bolt are almost the same. It is not in an angular position, and when the flame adjusting lever 701 is fitted therein, the ratchet hole of the flame adjusting lever and the ratchet wheel of the valve body bolt can be fitted for each tooth for the first time. Such a tooth-to-tooth alignment error is about 20 degrees, and the error of the valve body bolt rotating by 20 degrees causes a large difference due to the gas flow rate, and the setting range of the flame altitude cannot be accurately determined.

In order to avoid the above-mentioned situation, the present invention eliminates the conventional structure of the flame adjusting lever, and directly provides the ratchet teeth 1705 on the circumference of the large diameter disc 1704 of the gas control valve 17, and directly installs the ratchet tooth. The size of the flame can be adjusted by rotating the teeth. Moreover, a ring piece 1706 is arranged on the top of the disk, and after the adjustment work of the flame height is completed, the ring piece 170 is ultrasonically cut.
A notch 1709 having a size of about 90 degrees is formed on 6
When the cover body of the protective cover 19 faces the notch 1709 of the ring piece 1706, the concave portion is punched inwardly to form one long rod-shaped stop pin 1901, and the protective cover 19 is fitted to the ignition pedestal 12. When this is done, this stop pin allows it to be inserted into the notch 1709, and as shown in FIG. 7, the stop pin 1901 stops both sides of the notch 1709, which is used to limit the rotation of the gas control valve 17. By doing this, the flame altitude range of the lighter is accurately set in advance, and there is no error.

In the structure of the gas nozzle 18 shown in FIGS. 3 and 5, a neck portion 1801 is provided above the gas nozzle 18,
8 is penetrated through the injection port 1802 in the center of the gas nozzle 18, and the fitting cylinder body portion 1805 is formed by reducing the diameter of the cylinder body inward at an appropriate position below the cylinder body 1803 of the gas nozzle 18, and the fitting cylinder body portion 1805 is formed. The long hole 1804 is cut out in the
5, the closing rubber lid 1806 is pushed from the bottom thereof, and the length of the shaft pin 1807 of the closing rubber lid 1806 is the long hole 18.
The closing rubber lid 1 is shorter than the fitting cylinder portion 1805.
Long hole 1804 and shaft pin 1807 when 806 is fitted
A gap 1808 is formed between the two, and the gas can enter into the injection port 1802 through the gap 1808.

The gas nozzle 18 is disposed in the accommodation hole 1707 of the gas control valve 17, the diameter of the cylindrical body 1803 thereof is configured to be slightly smaller than the diameter of the accommodation hole 1707, and a small gap 1809 is formed between them. Then, the fitting cylinder portion 1
A large gap 1810 is formed between 805 and the accommodation hole 1707, and the closed rubber lid 1806 closes the valve hole 1708 at the bottom of the accommodation hole 1707. Gas nozzle 1 of the present invention
8 is a metal spring used in a conventional disposable gas lighter, which obviates the use of closing a gas, and a pressing plate 20 is provided with a plastic plate spring 2001 integrally formed below the pressing plate 20 with plastic, The pressing plate 20 is pushed up by the elasticity of the plastic leaf spring 2001, and the pressing plate is used to hold the neck portion 1801 of the gas nozzle 18 by the holding plate 2002 at the front end thereof, and suppresses the downward pressure to block the gas. Hold the state.

In the structure of the present invention, by utilizing the principle of the Venturi tube, the gas nozzle 18 is lifted and raised, and the valve hole is released through the closed rubber lid 1806.
A large gap 181 is formed between the vaporized gas and the valve hole 1708.
Move into 0. At this time, the gas gas is blocked by the atmospheric pressure and cannot enter the small gap 1809.
No. 04 gap 1808 enters the injection port 1802 and ejects from above the gas ejection nozzle.

(3) Gas Ignition System In the present invention, the conventional disposable gas lighter uses a metal spring to control the closing of the gas nozzle, while the pressing plate 20 is used.
Is improved into a plastic leaf spring 2001 which is integrally plastic injection molded. The plastic leaf spring 2001 extends into a concave groove 1201 formed on the upper right side of the ignition pedestal 12, pushes up the pressing plate 20 by its elasticity, and presses the pressing plate 20 by the lever principle to hold the holding plate 2002 at its front end. Holds the neck portion 1801 of the gas nozzle 18 and suppresses the downward pressure to keep the gas nozzle closed.

As shown in FIG. 8, plastic side walls 2003 are provided on both sides of a holding plate 2002 provided at the front end of the pressing plate 20.
The side wall 2003 covers the space between the ignition wheel 21 and the gas nozzle 18, and the sparks ejected from the ignition wheel 21 are concentrated into a beam shape, which is integrally concentrated and opposed to the gas nozzle, thereby improving the ignition efficiency. Improve.

[0026]

Since the disposable gas lighter of the present invention has the above-mentioned structure, the number of parts thereof is smaller than that of the conventional one, and the structure is simple, and the fully automatic plastic injection molding method is used. Since it is integrally molded, the manufacturing cost of the parts can be greatly reduced, and the mounting and combination processing costs can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a conventional disposable gas lighter.

FIG. 2 is a vertical sectional side view of a conventional disposable gas lighter.

FIG. 3 is a vertical sectional side view of the disposable gas lighter of the present invention.

FIG. 4 is a cross-sectional view of the gas tank of the present invention.

FIG. 5 is an exploded perspective view showing a part of a gas regulating device of the present invention in cross section.

FIG. 6 is a cross-sectional plan view of an accommodation hole of a valve body pedestal of the present invention.

FIG. 7 is a front view of the protective cover of the present invention.

FIG. 8 is a perspective view of a pressing plate of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Valve body pedestal 101 Through hole 102 Gap 103 Female screw 2 Gas tank 201 Welding line 3 Sponge suction rod 301 Prong 4 Metal sleeve 401 Large diameter part 402 Notch 5 Metal lid 501 Shaft end 6 Sponge throttle washer 7 Valve body bolt 701 Male screw 702 Flame adjusting lever 703 Ratchet hole 704 Ratchet ring 8 Gas nozzle 801 Bottom 802 Rubber lid 803 Blocking spring 804 Nozzle head 805 O-ring 9 Bottom lid 901 O-ring 10 Pressing plate 1001 Rotating shaft 1002 Holding plate 11 1101 Inner wall 1102 Holding wall 1103 Gas outlet hole 1104 Capillary groove 1105 Opening 12 Ignition pedestal 13 Valve body pedestal 1301 Storage hole 1302 Bottom 1303 Groove hole 14 Bottom lid 15 Metal double head lid 1501 Cylindrical body 1502 Gap 1503 Upper head part 1504 Gap 1505 Lower head part 1506 Gap 16 Sponge throttle washer 17 Gas control valve 1701 Male screw 1702 Neck part 1703 O-ring 1704 Large diameter disc 1705 Ratchet tooth 1706 Ring piece 1707 Reservoir hole 1708 Valve hole 1709 Part 18 Gas nozzle 1801 Neck part 1802 Jet port 1803 Cylindrical body 1804 Long groove 1805 Fitting cylinder part 1806 Blocking rubber lid 1807 Shaft pin 1808 Gap 1809 Small gap 1810 Large gap 19 Protective cover 1901 Stopping pin 20 Press plate 2001 Leaf spring 2002 Holding Plate 2003 Side wall 21 Ignition wheel

Claims (2)

[Scope of utility model registration request] 1. A gas tank formed by injection molding of a plastic material, a valve body pedestal, and an ignition pedestal. The gas tank extends from the bottom of the gas tank to a gas outlet hole formed in the valve body pedestal. With a capillary groove, and the gas outlet hole is communicated with a valve body accommodation hole formed in the valve body pedestal. The valve body accommodation hole is internally equipped with a metal double head lid and a gas control valve through a sponge-type throttle washer. The gas control valve has a valve hole communicating with the gas outlet hole through a sponge type throttle washer, a nozzle housing hole communicating with the valve hole, a large-diameter disk having ratchet teeth on the outer periphery, and a notch. And a ring piece having a ring cover, a locking pin of a protective cover is engaged with the cutout portion of the ring piece, and a closed rubber lid that opens and closes the valve hole in the nozzle housing hole of the gas control valve A gas nozzle having a body and a gas flow hole is arranged, and a pressing plate having a holding plate for holding the gas nozzle at one end is rotatably attached on the ignition pedestal, and the other end of the pressing plate has a rubber cover for closing the gas nozzle. A plastic disposable gas lighter comprising a leaf spring for urging a pressing plate so that the body closes the valve hole. 2. A gas tank integrally formed by injection-molding a plastic material, a valve body pedestal, and an ignition pedestal. A bottom lid is attached to the bottom of the gas tank, and the gas tank is inside the gas tank. A holding wall that forms a capillary groove extending from the bottom of the valve body to the gas outlet hole formed in the valve body pedestal, and the gas outlet hole communicates with the valve body accommodation hole formed in the valve body pedestal. A slot intersecting with the outlet hole is provided, and a metal double head lid is provided inside the accommodating hole. The metal double head lid has a cylindrical body slightly smaller than the inner diameter of the accommodating hole and the gas outlet hole. And a lower head portion having an outer diameter slightly smaller than the inner diameter of the gas outlet hole, and extending through the central opening of the sponge throttle washer into the valve hole formed at the bottom of the gas control valve and Slightly smaller than inner diameter The gas control valve is provided with an upper head portion having a outer diameter, and the gas control valve is provided with a male screw to be screwed into the valve body accommodation hole, a neck portion into which an O-ring for gas leakage prevention is fitted, and a male screw provided above the male screw. A large-diameter disk with ratchet teeth engraved on the outer circumference, and a large-diameter disk mounted on the disk
A ring piece having a cutout of 0 degree, and a lock pin of the protective cover is engaged with the cutout formed in the ring piece of the gas control valve so that the valve hole of the gas control valve communicates with the nozzle accommodating hole. A gas nozzle having a gas flow hole is provided in the nozzle accommodating hole of the gas control valve. A neck portion is provided above the gas nozzle, and an injection port communicating with the gas flow hole is provided at the center of the gas nozzle. The external fitting tubular body part is provided with a tubular body formed on the lower side and a fitting tubular body portion having a long groove formed at a lower portion of the tubular body with a reduced diameter and communicating with the gas flow hole. Fitting a closing rubber lid that is shorter than the length of the long groove and closes the valve hole so that the valve hole can be opened, and a pressing plate equipped with a holding plate for holding the neck of the gas nozzle at the front end can be rotated on the ignition base. Mounted on the underside of the pressure plate, injection molding a plastic material A plate spring made of plastic integrally formed with the pressing plate, and the plate spring is housed in a spring housing hole at the upper right of the ignition base so that the rubber lid of the gas nozzle blocks the valve hole. , And two side walls are erected on both sides of the holding plate provided at the front end of the pressing plate.
The plastic disposable gas lighter according to claim 1, wherein the ignition wheel and the gas nozzle are covered.