JPH07190356A - Pocket lighter - Google Patents

Abstract

PURPOSE:To restrict a useless consumption of fuel gas by a method wherein a burner nozzle and a main body of a burner valve are lifted up, and then a desired measuring space of predetermined capacity is formed between a first valve seat and a valve part and also between a second valve seat and the valve part. CONSTITUTION:A burner nozzle 3 is lifted up in cooperation with an operation of an operating lever 7 and a main body 12 of a burner valve is lifted in integral with the burner nozzle. A second valve seat 17 is press contacted against a second valve part 20 under a lifting-up of the main body 12 of the burner valve so as to close the second valve part 20 and at the same time the first valve part 19 is moved away from a first valve seat 24, so that fuel gas contained in the measuring space including a gas accumulation space 25 is injected out of a nozzle hole 23 and ignited. Since a supplying of fuel gas from a fuel tank to the measuring space is shut off due to the press contact between the second valve part 20 and the second valve seat 17, so that the flame is automatically extinguished by consumption of gas within the measuring space. With such an arrangement as above, it is possible to restrict useless consumption of the fuel gas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pocket lighter, and in particular, when a burner valve is opened, only a certain amount of fuel gas is allowed to be ejected, and the subsequent ejection of fuel gas is interrupted to automatically extinguish the fire. The pocket lighter that was able to do.

[0002]

2. Description of the Related Art Conventionally, when liquid fuel gas is stored under pressure in a tank and a burner valve connected to the tank is opened, a controlled flow of fuel gas is ejected to ignite a cigarette. A pocket lighter adapted to ignite is known. In such a conventionally known pocket lighter, fuel gas is continuously ejected while the burner valve is opened, and the outflow of fuel gas is blocked only when the burner valve is closed. It means that only a certain amount of fuel gas can be ejected after the burner valve is opened.
Nothing is known that prevents the subsequent ejection of fuel gas after the ejection of a fixed amount of the measured fuel gas is completed.

[0003]

SUMMARY OF THE INVENTION The present invention allows only a fixed amount of fuel gas to be jetted when the burner valve is opened, and thereafter the fuel gas jetting is automatically terminated. The purpose is to provide a pocket lighter.

[0004]

In order to solve the above-mentioned problems, the means adopted by the present invention interlocks with the operating lever (7) to raise the burner nozzle (3) and the burner valve body (12) integrally. The burner nozzle (3) and the burner valve main body are moved upward to cause the first valve seat, the valve parts (24) (19), the second valve seat, and the valve part to move.
(17) (20) are reciprocally contacted and separated, and the first valve seat and valve section (24) (19)
It is characterized in that a measuring space having a predetermined volume is formed between the second valve seat and the valve portions (17) and (20).

[0005]

[Operation] The burner nozzle (3) is raised in conjunction with the operation of the operating lever (7), and the burner valve body (12) is integrated with this.
Rises. As the burner valve body (12) rises, the second valve seat (17) is crimped to the second valve portion (20) to close it, and the first valve portion (19) is moved to the first valve seat (24). ), The fuel gas in the metering space including the gas reservoir space (25) is ejected from the nozzle hole (23) and ignited. Second valve part (20) and second
Since the supply of fuel gas from the fuel tank to the metering space is shut off by crimping the valve seat (17), only a quantified amount of fuel gas ejected in the metering space is allowed and The flame will extinguish automatically.

[0006]

According to the present invention, only a fixed amount of fuel gas metered in the metering space is ejected for ignition to form a flame, and the flame is automatically consumed by the consumption of the fuel gas in the metering space. Since it is designed to extinguish the fire, wasteful consumption of fuel gas is suppressed, and the flame does not continue for a long time, which is extremely safe in use.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings. In the figure, (1) is a main body of a disposable pocket lighter to which the present invention is applied, in which a fuel tank (2) is arranged at a lower portion and a burner valve (3) is provided at an upper portion of the fuel tank (2). 4), ignition stone (5), ignition file (6), and an ignition mechanism such as an operating lever (7) for operating the burner valve (4) and the ignition file (6). Although the illustrated embodiment is a disposable type pocket lighter, the present invention is not limited to such a disposable type pocket lighter, but can be applied to a pocket lighter having an injection valve device capable of supplementing fuel gas to a tank. It will be easily understood by those skilled in the art that the above is also applicable. Further, it goes without saying that the ignition mechanism is not limited to the one having the illustrated structure.

Referring to FIGS. 2 and 3, the upper portion of a cylindrical main body (1) molded of synthetic resin and having a lower portion as a fuel tank (2) is hermetically closed by a block body (8) for mounting an ignition mechanism. A fuel tank (2) is defined. In the block body (8), two vertical holes (9) and (10) whose upper surface is open and whose lower surface is closed are formed in parallel. The first vertical hole (9) has a diameter larger than that of the second vertical hole (10), is formed to be offset to one side of the block body (8), and has a small hole (1).
It communicates with the fuel tank (2) via 1). First vertical hole
A burner valve main body (12) is inserted in (9) so as to be vertically movable. The burner valve body (12) is a cylindrical member having an open top and a closed bottom. An O-ring (13) is wound around the outer peripheral surface of the burner valve main body (12) and the inner peripheral surface of the first vertical hole (9) and the burner. The space between the valve body (12) and the outer peripheral surface is hermetically sealed. Burner valve body
A through hole (16) is bored in the center of an image wall (15) that closes the lower surface of the (12), and a first valve seat (24) is formed at the upper edge of the through hole (16). Reference numeral (18) is a movable valve body that is vertically movable in the burner valve body (12) and is formed of an elastic sealing material such as rubber. The movable valve body (18) has an upper first valve portion (19) and a lower second valve portion (20), and both valve portions (19) (20) are small-diameter connecting portions (21). It is connected. Also, the lower second valve section (20)
A rod-shaped contact portion (22) extends from the center of the lower surface of the first vertical hole through the through hole (16).
It can come into contact with the inner bottom surface of (9).

A burner nozzle (3) is screwed into the burner valve body (12) from above and is integrally connected. The burner nozzle (3) is a cylindrical member having a small diameter nozzle hole (23) formed in the upper portion and an opened lower surface, and the first bottom surface is provided with the first member.
A first valve seat (24) is formed to come into contact with and separate from the valve portion (19). The movable valve body (18) includes a lower surface of the burner nozzle (3) and a second valve portion (2
The spring (14) stretched between the upper surface of (0) and the upper surface of the burner is always elastically urged downward, and the burner is integrated with the burner valve body (12) in the lowered position when the valve is closed. nozzle
It is lowered at (3), and the rod-shaped contact portion (22) is in contact with the inner bottom surface of the first vertical hole (9). As a result, the first valve part (19) is crimped to the first valve seat (24), the passage to the nozzle hole (23) is closed, and the second valve part (20) and the second valve seat are also closed. Since it is separated from (17), the fuel gas flows through the small hole (11) into the gas reservoir space (25) in the burner valve body (12) whose upper part is defined by the burner nozzle (3). Will come. Gas reservoir space
(25) is a measuring space for measuring a substantially constant amount of fuel gas, and only the amount of fuel gas measured in the gas reservoir space (25) is ejected from the nozzle hole (23) when the valve is opened. come. A flow rate control member (26) is arranged in the burner nozzle (3) adjacent to the nozzle hole (23). The flow rate control member (26) is made of a porous material such as a sintered metal, a sintered resin or a ceramic, and can allow only a certain amount of fuel gas to flow out. This prevents the fuel gas in the metering space (25) from suddenly ejecting when the valve is opened. The sintered resin is obtained by sintering particles of resin such as polyethylene or polyacetal with heat or ultrasonic waves.

Burner nozzle (3) by operating lever (7)
When is pushed up, the burner valve body (12) is raised integrally with it. As the burner valve body (12) rises, the second valve seat (17) presses against the second valve portion (20) to close it, and the spring (14) is relatively moved with the rise of the burner valve body (12). ), The movable valve body (18) descends, and the first valve portion (19) separates from the first valve seat (24) and opens there, as shown in FIG. Thus, the fuel gas stored in the gas storage space (25) is ejected from the nozzle hole (23). Second
Since the inflow of the fuel gas into the gas reservoir space (25) is blocked by the crimping of the valve seat (17) and the second valve portion (20), depending on the capacity of the measuring space including the gas reservoir space (25). Only metered jets of fuel gas are allowed. The amount of fuel gas that is actually measured and ejected is the first valve portion, valve seat (19) (24)
And the amount of gas stored in the space defined by the second valve portion and the valve seats (20) and (17), and the gas storage space (25) is not the only measurement space. Therefore, in the present specification, the space between the first and second valve portions and the valve seat including the gas reservoir space (21) is referred to as a metering space. And this measuring space can be substantially set and changed according to the size of the gas storage space (25).

In the second vertical hole (10) juxtaposed with the first vertical hole (9), a pyrotechnic stone storage cylinder (27) is fitted so as not to slip out, and a stone pushing spring (28) is used to always keep the outside. The igniting stone (5) is stored and held while being urged toward the ball. The igniting file (6) is positioned above the igniting stone container (27), and the igniting stone (5) is pressed against the igniting file (6).

The operation lever (7) is swingably supported on the upper portion of the block body (8) and is normally urged to a non-operation position (position shown in FIG. 2) by a spring (29).

At the time of ignition, while rotating the ignition file (6), the operating lever (7) is moved down against the elastic force of the spring (29) as shown in FIG. The burner nozzle (3) is pushed up by the operation of the operating lever (7). Burner nozzle
Due to the rise of (3), the second valve seat (17) is pressed against the second valve portion (20) to shut off the metering space including the gas reservoir space (25) from the fuel tank (2), and The valve part (19) is the first valve seat
It leaves from (24) and opens. When the valve is opened, the fuel gas in the metering space rises up the burner nozzle (3) as shown in FIG. 3 and is ejected from the nozzle hole (23), which is ignited and burned by the sparks. Then, when the fuel gas in the measuring space is consumed, the flame is automatically extinguished because the fuel gas is not supplied from the tank to the measuring space. That is, the flame continues only for a time corresponding to a certain amount of fuel gas present in the metering space, after which the flame is extinguished automatically.

After the cigarette is ignited, when the pushing force on the operating lever (7) is removed, the elastic force of the spring (29) causes the operating lever (7) to return, and in accordance with this, the burner nozzle (3). Since the push-up force of is also released, the burner nozzle (3) also returns to the down position and the first
The valve portion (19) is crimped to the first valve seat (24) to close the valve.
Further, by lowering the burner nozzle (3), the second valve section (20)
Is separated from the second valve seat (17), the metering space communicates with the fuel tank (2), and the fuel gas is supplied to the metering space through the small hole (11) to prepare for the next ignition.

[Brief description of drawings]

[Figure 1] Vertical section

FIG. 2 is an enlarged vertical sectional view of a main part when the valve is closed.

FIG. 3 is a cross-sectional view of the main part when the valve is open.

[Explanation of symbols]

 1 lighter body 2 fuel tank 3 burner nozzle 4 burner valve 5 ignition stone 6 ignition file 7 operating lever 8 block body 9 first vertical hole 10 second vertical hole 11 small hole 12 burner valve body 13 O-ring 14 spring 15 Wall 16 Through hole 17 Second valve seat 18 Movable valve body 19 First valve part 20 Second valve part 21 Connecting part 22 Rod-like contact part 23 Nozzle hole 24 First valve seat 25 Gas reservoir space 26 Flow control member 27 Firestone Storage cylinder 28 Stone push spring 29 Spring

Claims (2)

[Claims] A burner nozzle (3) and a burner valve main body (12) are integrally lifted in conjunction with an operating lever (7), and the burner nozzle (3) and the burner valve main body are lifted to move the first valve. Seat, valve parts (24) (19) and second valve seat, valve parts (17) (20) are reciprocally contacted and separated, and the first valve seat, valve parts (24) (19) and second valve seat ,
A pocket lighter characterized in that a measuring space having a predetermined volume is formed between the valve parts (17) and (20). 2. A nozzle hole (22) in the burner nozzle (3).
The pocket lighter according to claim 1, further comprising a porous flow rate control member (26) disposed in close proximity to the flow rate control unit to control the outflow of the fuel gas at a constant flow rate.