JPH06281141A - Gas lighter for smoking - Google Patents

Abstract

PURPOSE: To provide a gas lighter for smoking capable of selectively obtaining a flame under two types of premix and diffusion combustions, and lighting a cigaret by the flame of any type of combustion. CONSTITUTION: A gas lighter for smoking comprises an opening and closing valve 7 which is raised to open when an operation button 26 is pushed down and a stopper 33 which protrudes downward of a flange 10 provided in the opening and closing valve 7 to hold the open state of the opening and closing valve 7 upon opening of a cover 1. A burner 13 for premix combustion is connected to and held in a fuel tank 3 through,the opening and closing valve 7 and a burner 14 for diffusion combustion is connected to the fuel tank 3 through a fuel passage and the opening and closing valve 7 closed upon pushing down the operation button 26. The burner 14 for diffusion combustion is disposed in the upper part of the burner 13 for premix combustion, so that the premix combustion and the diffusion combustion can be switched selectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas lighter for smoking having two combustion modes, that is, premixed combustion and diffusion combustion.
More specifically, it relates to a gas lighter for smoking, in which a combustion mode can be selected according to a user's preference or usage conditions.

[0002]

2. Description of the Prior Art In a gas lighter for smoking, a fuel gas ejected from a fuel tank through a burner nozzle is ignited to perform diffusion combustion in which air required for combustion is taken in from the outer periphery of a combustion flame. Many.

On the other hand, in recent years, a lighter has been proposed in which a fuel gas is premixed with air prior to the start of combustion, and the premixed mixture is ignited and burned by a burner nozzle for premixed combustion. It has been put to practical use. The lighter that employs such a premixed combustion mode has a characteristic that it is less likely to be blown out as compared with the case of diffusion combustion, and there is no need to take in air from the outer periphery of the flame in the combustion process.

Accordingly, in the premixed combustion type lighter, since a flame can be formed inside the combustion cylinder having a high windproof function, there is an advantage that a lighter resistant to wind can be provided, but on the other hand, combustion is performed in a state close to complete combustion. As a result, a combustion flame that is nearly colorless is formed. For this reason, in the gas lighter adopting the premixed combustion, there is a problem in that it is inconvenient to ignite a cigarette because the combustion state cannot be easily visually confirmed in the daytime use.

Therefore, in recent years, for example, Japanese Patent Laid-Open No. 3-186 has been proposed.
As disclosed in Japanese Patent Publication No. 114, etc., there has been proposed a single lighter in which the combustion modes of the above two modes are incorporated. However, this Japanese Patent Laid-Open No. 3-186114
The gas lighter disclosed in Japanese Patent Publication uses premixed combustion and diffusion combustion at the same time to re-ignite by using the premixed flame as a pilot flame of the diffusion flame when the diffusion flame is blown out by wind. However, the premixed flame having a wind resistant property is not directly used for igniting a cigarette.

[0006]

SUMMARY OF THE INVENTION The present invention is capable of selectively obtaining flames from two types of combustion, premixed and diffused, in a single lighter, and ignites the cigarette with any of the selected flames. It is an object to provide a smoking gas lighter that can.

[0007]

In order to solve the above-mentioned problems, the present invention provides an opening / closing valve which is lifted by a pressing operation of an operation button to open the valve and an opening / closing valve which is opened when a lid is opened. A stopper is provided to cause the opening / closing valve to open and hold by projecting below the flange. A premixed combustion burner connected and held to the fuel tank via the on-off valve, a fuel passage closed when the operation button is pressed, and a diffusion combustion burner connected to the fuel tank via the on-off valve. The burner for diffusion combustion is provided above the burner for premixed combustion.

Further, according to the present invention, the operation button and the on-off valve are connected to each other via a lever member, at least a part of the fuel passage is constituted by a flexible tube, and the lever member according to the pressing operation of the operation button is connected. It is preferable that the flexible tube is crushed by the operation to interrupt the supply of the fuel gas to the diffusion combustion burner.

[0009]

When the lid is opened and the operation button is depressed, the lever member raises the on-off valve to open it and closes the fuel passage to the burner for diffusion combustion. Therefore, since the fuel gas flowing out from the fuel tank with the opening of the on-off valve is supplied only to the burner for premixed combustion, and is ignited by the ignition means that operates when the operation button is pressed,
Premixed combustion is started in the combustion cylinder.

When the pressing force applied to the operation button is released at the start of the premixed combustion, the operation button is returned to the ascending state, so that the fuel passage to the burner for diffusion combustion is opened. Then, the fuel gas, which has been supplied only to the premixed combustion burner until then, is also supplied to the diffusion combustion burner, so that the flame due to the premixed combustion becomes smaller with the start of the diffusion combustion. However, in order to ignite the fuel gas supplied to the diffusion combustion burner due to the flame resulting from this premixed combustion becoming a pilot flame, switching from premixed combustion to diffusion combustion is possible by pressing the operation button. The transition of the flame accompanying the fire is performed continuously and smoothly.

Therefore, it is possible to arbitrarily select either premixed combustion or diffusion combustion according to the preference of the user or the usage conditions. Further, in the state where the lid is opened, the stopper rushes below the on-off valve to hold the on-off valve open, so that the diffusion combustion is continued until the lid is closed.

[0012]

According to the present invention, while the lid is opened and the operation button is being pressed, premixed combustion that is strong against blowout is performed, and the operation button is released before the lid is closed. Until then, diffusion combustion can be performed. In addition, premixed combustion and diffusion combustion can be arbitrarily switched by operating the operation button, and flames of any combustion mode can be used to ignite cigarettes. Either premixed combustion or diffusion combustion can be selected arbitrarily.

Further, at least a part of the fuel passage for supplying the fuel gas to the diffusion combustion burner is made of a flexible tube, and a lever member for connecting the operation button to the on-off valve is used to form the flexible tube. When the fuel gas is crushed and the supply of the fuel gas to the diffusion combustion burner is interrupted, there is an advantage that the fuel gas supply control means to the diffusion combustion burner can be simplified.

[0014]

An embodiment of the present invention will be described in detail below with reference to the drawings. As shown in FIGS. 1 to 6, the lid (1) is attached to the upper end.
A fuel tank (3) is housed inside a casing (2) which is hinged so that it can be opened and closed. A burner valve device (4) is arranged on one side of the fuel tank (3) along a vertical axis.

The lower part of the burner valve device (4) is a fuel tank.
The flow rate adjusting valve (5) for adjusting the flow rate of the fuel gas supplied from (3) to the burner nozzle is configured, and the flow rate can be arbitrarily adjusted by the adjusting knob (6) facing the bottom surface of the casing (3). I am able to adjust it. Burner valve device (4)
An on-off valve (7) is incorporated in the middle part of the.

The on-off valve (7) is opened by raising the hollow valve rod (8), and the fuel gas flowing out from the fuel tank (3) due to this opening is stored in the valve rod (8). It is supplied to the inside of a flange (10) provided at the upper end of the valve rod (8) through a passage (9). Further, the first outlet (11) connected to the premixed combustion burner (13) is provided on the upper surface of the flange (10), and the side surface of the flange (10) is connected to the diffusion combustion burner (14). A second outlet (12)
The fuel gas supplied to the inside of the flange (10) through (9) is branched and supplied to the first and second outlets (11) and (12).

As shown in FIGS. 6 and 7, the premixed combustion burner (13) has a tube (15) at the first outlet (11).
The nozzle body (18) is obtained by tightening and fixing the connector (16) connected via the cap nut (17). Connector (16)
Jet plate (20) with a nozzle (19) between the nozzle and the nozzle body (18)
Are installed. Further, by providing an air suction port (21) on the peripheral surface of the nozzle body (18), the nozzle body can be removed from the nozzle port (20).
When jetted into the inside of (18), air is sucked from the outside by the negative pressure accompanying the flow of the fuel gas and premixed with the fuel gas.

The fuel gas premixed with the air sucked from the outside rises and the opening provided at the upper end of the nozzle body (18).
It collides with a diffuser (23) arranged so as to block (22), resulting in a reduction and turbulence in the flow velocity, which further improves the mixed state of air and fuel gas, and the nozzle body (18) It flows out into the combustion cylinder (24) connected to the upper part. In addition, by providing the discharge electrode (25) connected to the high voltage power source in the combustion cylinder (24), the discharge spark (25) provided to the discharge electrode (25) when the operation button (26) is pressed down is used as a precursor. I try to ignite the mixture.

The diffusion combustion burner (14) to which the fuel gas is supplied from the second outlet (12) is provided with a nozzle (27) provided upright on the upper surface of the diffuser (23). The pipe (28) leading to the nozzle (27) is connected to the second outlet (12) via a flexible tube (29) such as a soft resin tube. Therefore, the fuel gas flowing out from the second outlet (12) is supplied to the nozzle (27) via the flexible tube (29) and the pipe (28), and the nozzle (27) is used to combust the combustion cylinder.
The air flows out into the inside of the (24) and the air in the combustion cylinder (24) is taken in and burned. That is, the premixed gas that has flowed into the combustion tube (24) through the opening (22) provided at the upper end of the nozzle body (18) performs premixed combustion, but flows out from the nozzle (27) into the combustion chamber (24), etc. The fuel gas thus produced will undergo diffusion combustion.

The operation butane (26) is provided at the upper end of the high voltage generator (30) connected to the discharge electrode (25). Then, one end of a lever member (32) swinging around a flexible tube (29) positioned and held in a groove (31) formed on the upper surface of the fuel tank (3) is attached to the lower surface of the operation button (26). Of the lever member (32) and the other end of the lever member (32) to the lower surface of the flange (10) provided on the valve rod (8) of the on-off valve (7), thereby depressing the operation button (26). Then, the piezoelectric generator (30) is activated, and the lever member (32) swings as shown in FIG. 3 to raise the valve rod (8) to open and close the valve.
The valve (7) is opened, and the flexible tube (29) is crushed by the ascending reaction force of the valve rod (8) and the burner for diffusion combustion (14)
The supply of fuel gas to the plant is interrupted.

On the other hand, a stopper (33) is arranged on the opposite side of the piezoelectric generator (30) sandwiching the burner valve device (4). The stopper (33) is projected on the inner side surface of the spring plate (34) that moves toward and away from the burner valve device (4).
It is pressed against the side surface of the flange (10) of the valve rod (8) by being pressed by the urging force of (4). And, a piston rod (36) connected to a cam (35) which rotates inward and outward as the lid (1) is opened and closed.
Is engaged with the upper end of the spring plate (34).

For this reason, as shown in FIG. 1, the spring plate (34) together with the stopper (33) moves to the outer side only when the piston rod (36) swings outward with the closing of the lid (1). When the lid (1) is opened, the stopper (33) is held in pressure contact with the peripheral surface of the flange (10) by the urging force of the spring plate (34) as shown in FIG. Therefore, open the lid (1) and open the operation button (2
When the valve rod (8) is lifted by pushing 6) to open the on-off valve (7), the stopper (33) is pushed by the urging force of the spring plate (34) as shown in FIG. Even if the operation button (26) is released, the stopper (33) prevents the flange (10) from descending so that the on-off valve is opened.
Hold (7) open. When the lid (1) is closed in this state, the piston rod (36) swings outward to bend the spring plate (34) outward, so that the stopper (33) is below the flange (10). And the on-off valve (7) returns to the closed state.

In the above structure, when the lid (1) is opened and the operation button (26) is pushed down, the piezoelectric generator (30) is activated and the lever member (32) is activated to operate the valve rod ( The on-off valve (7) is opened to raise 8). Further, when the opening / closing valve (7) is opened in this way, the stopper (33) is caused to project downward of the flange (10) by the urging force of the spring plate (34) and the lever member (32) is activated. Along with this, the flexible tube (29) is crushed and the fuel passage to the diffusion combustion burner (14) is closed.

Therefore, the fuel gas flowing out of the fuel tank (3) due to the opening of the on-off valve (7) is supplied only to the burner (13) for premixed combustion to form premixed gas, and the combustion cylinder ( twenty four)
A combustion tube (24) to flow into and be ignited by a discharge spark
Premixed combustion is started within. The flame due to such premixed combustion turned incandescent the catalyst wire (37) such as platinum arranged in the upper part of the combustion cylinder (24) to help the visual confirmation of the premixed flame which is difficult to see, and the flame disappeared. If you bring a re-ignition.

[0025] The operation button (2
When the pressing force applied to 6) is released, the restraining force applied to the lever member (32) is released because the operation button (26) returns to ascend, and thus the flexible tube (29) is released. The crushing is released and the fuel passage to the diffusion combustion burner (14) is opened. Further, when the operation button (26) is pushed down, the stopper (33) operates to project below the flange (10), and the valve rod
Since the lowering of (8) is prevented, the opening / closing valve (27) is kept open even if the operation button (26) is opened.

Therefore, until then, the burner (1
Since the fuel gas supplied only to 3) is also supplied to the diffusion combustion burner (14) in synchronization with the opening of the operation button (26), diffusion combustion is started in the combustion cylinder (24). . Further, the flame due to premixed combustion becomes smaller with the start of diffusion combustion, but the reduced premixed flame becomes a pilot flame to ignite the fuel gas supplied to the diffusion combustion burner (14). If the operation button (26) is released, the premixed combustion is switched to the diffusion combustion and the flame is transferred continuously and smoothly.

Therefore, either premixed combustion or diffusion combustion can be arbitrarily selected according to the preference of the user or the usage conditions. Further, since the stopper (33) projects below the flange (10) provided on the valve rod (8) when the lid (1) is opened, the on-off valve (7) is held open. The diffusion combustion is continued until the lid (1) is closed.

[Brief description of drawings]

FIG. 1 is an overall vertical cross-sectional view of an embodiment with a lid closed.

FIG. 2 is an overall vertical cross-sectional view of an embodiment with a lid open.

FIG. 3 is an overall vertical cross-sectional view of a state where an operation button of one embodiment is pressed down.

FIG. 4 is an overall vertical cross-sectional view of an embodiment in which an operation button is opened.

FIG. 5 is a vertical sectional view showing an opening / closing valve portion.

FIG. 6 is a perspective view showing the relational positions of the on-off valve, the premixed combustion burner, and the diffusion combustion burner.

FIG. 7 is a longitudinal sectional view of a premixed combustion burner and a diffusion combustion burner.

FIG. 8 is an exploded perspective view of an opening / closing valve and a flow rate adjusting valve.

FIG. 9 is an exploded perspective view of a premixed combustion burner and a diffusion combustion burner.

FIG. 10 is an exploded perspective view showing the relationship between the flexible tube and the lever member.

FIG. 11 is a cross-sectional view showing a state of the flexible tube when the lever member is inoperative.

FIG. 12 is a cross-sectional view showing a state of the flexible tube when the lever member is activated.

FIG. 13 is an exploded perspective view of a stopper

[Fig. 14] Side view of the appearance of the entire lighter showing the state of premixed combustion

[Fig. 15] Side view of the appearance of the entire lighter showing the state of diffusion combustion

[Explanation of symbols]

 (1) Lid (2) Casing (3) Fuel tank (4) Burner valve device (5) Flow rate adjusting valve (6) Adjusting knob (7) Open / close valve (8) Valve rod (9) Passage (10) Flange (11 ) 1st outlet (12) 2nd outlet (13) Burner for premixed combustion (14) Burner for diffusion combustion (15) Tube (16) Connector (17) Cap nut (18) Nozzle body (19 ) Nozzle (20) Jet plate (21) Air suction hole (22) Opening (23) Diffuser (24) Combustion tube (25) Discharge electrode (26) Operation button (27) Nozzle (28) Pipe (29) Flexible Flexible tube (30) Piezoelectric generator (31) Groove (32) Lever member (33) Stopper (34) Spring plate (35) Cam (36) Piston rod (37) Catalyst wire

Claims (2)

[Claims] 1. An on-off valve which is lifted when the operation button is pressed to open the valve, and when the lid is opened, the valve opens and closes by opening below the flange provided on the on-off valve. A stopper for holding the valve, a premixed combustion burner connected and held to the fuel tank via the opening / closing valve, a fuel passage closed when the operation button is pressed, and a fuel tank connected via the opening / closing valve And a burner for diffusive combustion, wherein the burner for diffusive combustion is disposed above the burner for premixed combustion. 2. An operation button and an opening / closing valve are connected to each other via a lever member, at least a part of the fuel passage is formed of a flexible tube, and the lever member is actuated in response to a pressing operation of the operation button. The smoking gas lighter according to claim 1, wherein the flexible tube is crushed to interrupt the supply of the fuel gas to the diffusion combustion burner.