JPH07158852A - Pocket lighter - Google Patents

Abstract

PURPOSE:To restrain wasteful consumption of combustion gas and crease the property of safety by a constitution wherein a given amount of combustion gas, measured by a measuring space, is injected to form flame and ingite the gas while the flame is.extinguished by the consumption of the combustion gas in the measuring space. CONSTITUTION:When an operating lever 7 is slid so as to be forced into a wind shield 32 horizontally against a spring 27 upon igniting, a leaf type igniting file 6 rubs a flint 52 and spark is generated toward a burner nozzle 3. Simultaneously, an arcing unit 28 is abutted against the neck of the nozzle 3 to push down the nozzle 3 and a shutter 29 is advanced to open the upper part of the nozzle 3 by an opening unit 31. Accordingly, a second valve seat 20 is pressed against a second valve body 19 and a push rod 18 pushes a first valve body 23 up against a spring 24 whereby the first valve body 23 is brought into opened condition. According to this method, combustion gas in a measuring space 21 is ejected out of a nozzle port 22 and is ignited, then, flame is extinguished automatically by the consumption of the combustion gas in the measuring space.

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]

DISCLOSURE OF THE INVENTION The present invention provides a pocket lighter which allows only a fixed amount of fuel gas to be ejected when the burner valve is opened and then automatically extinguishes the fire. It is something to do.

[0004]

In order to solve the above-mentioned problems, the means adopted by the present invention operates the burner nozzle (3) and the burner valve body (12) integrally with the operation lever (7). , The first valve seat, the valve bodies (17) (23) and the second valve seat, the valve bodies (19) (20) by the operation of the burner nozzle (3) and the burner valve body.
By reciprocally contacting and separating each other to form a measuring space of a predetermined volume between the first valve seat, the valve bodies (17) (23) and the second valve seats, (19) (20). To do.

[0005]

[Operation] The burner nozzle (3) is pushed down in conjunction with the operation of the operation lever (7), and the burner valve body (12) is integrated with this.
Goes down. When the burner valve body (12) is lowered, the second valve seat (20) is crimped to the second valve body (19) to close it, and the first rod (23) pushes up the first valve body (23). First valve body
Since (23) is separated from the first valve seat (17), the gas reservoir space (2
Fuel gas in the metering space including 1) is jetted from the nozzle hole (22) and ignited. Since the supply of fuel gas from the fuel tank to the measuring space is blocked by the pressure bonding between the second valve body and the second valve seat (20), only the jetting of the fuel gas with a constant weight in the measuring space is allowed. The flame is extinguished automatically by the consumption of gas in the metering space.

[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 in a lower portion, and a burner nozzle (3) and a burner valve (4) are arranged in an upper portion of the fuel tank (2). ), Igneous stone
(5) and an ignition file (6), and an ignition mechanism such as an operating lever (7) for operating the burner valve (4) and the ignition file (6) are provided. Although the illustrated embodiment is a disposable type pocket lighter, the present invention is not limited to such a disposable type pocket lighter, and a pocket lighter provided with an injection valve device capable of supplementing fuel gas to a tank is provided. 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. 3 to 7, an 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 larger diameter than the second vertical hole (10) and is formed to be deviated from one example of the block body (8) to form the 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, and an O-ring (13) on the outer peripheral surface of the lower part.
Is wound around the inner peripheral surface of the first vertical hole (9) and the burner valve body (1
The space between the outer peripheral surface of 2) is hermetically sealed. The burner valve body (12) is prevented from coming out of the first vertical hole (9) by a retaining ring (14) screwed to the open end of the first vertical hole (9).
A through hole (16) is formed at the center of a wall (15) that closes the lower surface of the burner valve body (12), and a first valve seat (17) is formed at the upper peripheral edge of the through hole (16). It The through hole (16) has a first vertical hole.
A push rod (18) erected in the center of the inner bottom surface of (9) can be freely moved in and out. A second valve body (19) is wound around the base of the push rod (18), and a second valve seat (20) formed on the bottom surface of the burner valve body (12) is attached to the burner on the second valve body (19). The valve body (12) moves up and down to come in and out. The inside of the burner valve main body (12) between the second valve seat (20) and the wall (15) is formed to have a slightly larger diameter to form a partitioned gas reservoir space (21).

A burner nozzle (3) is fitted into the burner valve body (12) from above, and the two are integrally connected in a caulked state. The burner nozzle (3) is a cylindrical member having a small diameter nozzle hole (22) formed in the upper portion and an opened lower surface, and has a first valve body (21) that contacts and separates from the first valve seat (17) inside. )
Is stored so that it can move up and down. The first valve body (21) is normally urged downward by the elastic force of the spring (24) stretched in the burner nozzle (3) toward the first valve seat (17), Pressed against the valve seat (17). First and second valve bodies (19) (23)
Is formed of a soft elastic material such as rubber. In the burner nozzle (3), the flow rate control member is adjacent to the nozzle hole (22).
(34) is provided. The flow rate control member (34) 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 (21) 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.

When the burner nozzle (3) is pushed down from above, the burner valve body (12) is lowered integrally therewith. By lowering the burner valve body (12), the second
The valve seat (20) is pressed against the second valve body (19) to close it, and the push rod (18) rises in the through hole (16) relative to the lowering of the burner valve body (12). , The first valve body (23) separates from the first valve body (17) by abutting against the lower surface of the first valve body (23) and pushing it up,
Open it up. Thus, the fuel gas stored in the gas storage space (21) is ejected from the nozzle hole (22). Since the inflow of the fuel gas into the gas reservoir space (21) is blocked by the pressure contact between the second valve seat (20) and the second valve body (19), the measurement space including the gas reservoir space (21) is Only the ejection of fuel gas metered by volume is allowed. The amount of fuel gas that is actually measured and ejected is the first valve body, valve seat (23) (17)
And the amount of gas stored in the space defined by the second valve body and the valve seats (19) and (20), and the gas storage space (21) is not the only measurement space. Therefore, in this specification, the space between the first and second valve bodies 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 (21).

In the second vertical hole (10) juxtaposed with the first vertical hole (9), the pyrotechnic stone storage cylinder (25) is fitted so as not to slip out, and the stone pushing spring (26) always keeps 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 (25), and the igniting stone (5) is pressed against the igniting file (6). In the illustrated embodiment, the igniting file (6) is formed in a plate shape different from the conventional wheel-like one, and is slid horizontally to ignite stones.
Rub (5) and generate sparks for ignition to the burner nozzle.
Generate toward (3).

The operating lever (7) is horizontally slidably disposed on the upper portion of the block body (8), and is normally spring (27).
Is urged to the non-operation position (position in FIG. 3). The lower surface of the operation lever (7) is integrally formed with a nozzle pressing portion (28) having a front lower surface formed in an arc shape, and the ignition file (6) is fixed to the rear lower surface. Further, a shutter (29) is located above the nozzle pressing portion (28) and horizontally protrudes from the front surface of the operation lever (7). Shutter (29) is burner nozzle
A blocking part (30) for blocking the part directly above the nozzle of (3) and an opening part (31)
When sliding, the shielding part (30) retracts from above the burner nozzle (3), and the opening part (31) opens above the burner nozzle (3). (32) is the burner nozzle
A windshield that covers (3), the shutter (29), a part of the operation lever (7) and the block body (8), and the lighter body (1)
Mounted on the top of the. The windshield (32) has a burner nozzle
A flame burn-out hole (33) is formed in alignment with immediately above the nozzle hole (22) of (3). The operation lever (7) is preferably provided with a stopper mechanism for stopping the slide so as to prevent a child or the like from inadvertently performing an ignition operation when the lighter is inactive.

At the time of ignition, move the operating lever (7) to the position shown in FIG.
As shown in FIG. 6, the spring (27) is pushed horizontally into the windshield (32) against the elastic force, and the slide operation is performed. Operating lever
By the slide of (7), the plate-shaped ignition file (6) fixed to this slides on the ignition stone (5), and the burner nozzle (3)
Spark towards. At the same time as the arc part (28)
Contact the neck of the burner nozzle (3) and push down the burner nozzle (3), and the shutter (29) advances, and the opening (31) opens the upper part of the burner nozzle (3). As the burner nozzle (3) descends, the second valve seat (20) moves to the second valve body.
The metering space including the gas reservoir space (21) is shut off from the fuel tank (2) by crimping to the (19), and the push rod (18) causes the first valve body (23) to repel the spring (24). Since it is pushed up against the pressure, the first valve body (23) separates from the first valve seat (17) and opens. By opening the valve, the fuel gas in the measuring space is
Raise the burner nozzle (3) as shown in FIG.
Eject from (22), it is ignited by the sparks and flame burnout holes (3
Burn out from 3). 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 ignition of the cigarette, the sliding force to the operating lever (7) is removed, and the elastic force of the spring (27) causes the operating lever (7) to move.
Returns, and the pressing force of the burner nozzle (3) is also released accordingly, so the burner nozzle (3) also rises and returns,
The first valve body (23) is crimped to the first valve seat (17), and the valve is closed. Furthermore, the rise of the burner nozzle (3) causes the second valve seat
Since (20) is separated from the second valve body (19), the metering space communicates with the fuel tank (2), and fuel gas is supplied to the metering space through the small hole (11) to prepare for the next ignition.

Since the closing part (30) of the shutter (29) which moves integrally with the operating lever (7) blocks the upper part of the nozzle hole (22), the fuel gas remaining after the valve is closed is retained in the nozzle hole (22). Even if it is ejected from the nozzle, the flame is extinguished by the blockage above the nozzle hole (22), and the flame is not continuously formed. The amount of fuel gas to be measured is set to a sufficient amount necessary for one ignition by the measuring space, but when the operating lever (7) is operated in the non-ignition direction earlier than the normal ignition time. If the shutter (29) is not provided, the flame will continue to be formed, so it is necessary to extinguish the flame with the shutter (29), which is preferable for safety.

[Brief description of drawings]

FIG. 1 External perspective view

FIG. 2 is an external perspective view at the time of ignition.

FIG. 3 is an enlarged vertical cross-sectional view of a main part.

FIG. 4 is an enlarged vertical cross-sectional view of a main part during ignition.

FIG. 5 is an enlarged cross-sectional view of the main part

FIG. 6 is a cross-sectional view of the main part at the time of ignition.

FIG. 7 is an exploded perspective view

FIG. 8 is a diagram showing a gas flow when the valve is opened.

[Explanation of symbols]

 1 Lighter Main Body 2 Fuel Tank 3 Burner Nozzle 4 Burner Valve 5 Firing Stone 6 Firing File 7 Control Lever 8 Block Body 9 First Vertical Hole 10 Second Vertical Hole 11 Small Hole 12 Burner Valve Body 13 O-ring 14 Fastening Ring 15 Drawing Wall 16 Through Hole 17 First Valve Seat 18 Push Rod 19 Second Valve Body 20 Second Valve Seat 21 Gas Reservoir Space 22 Nozzle Hole 23 First Valve Body 24 Spring 25 Fire Stone Storage Cylinder 26 Stone Pressing Spring 27 Spring 28 28 Arc Part 29 Shutter 30 Blocking part 31 Open part 32 Windshield 33 Flame outlet 34 Flow control member

Claims (5)

[Claims] 1. A burner nozzle (3) and a burner valve body (12) are integrally operated in conjunction with an operating lever (7), and the burner nozzle (3) and the burner valve body are actuated to produce a first valve seat, The valve discs (17) (23) and the second valve seat, and the valve discs (19) (20) are reciprocally contacted and separated from each other, and the first valve seat, the valve discs (17) (23), the second valve seat, the valve Body (1
9) A pocket lighter characterized by forming a measuring space of a predetermined volume between (20). 2. A nozzle hole above the burner nozzle (3).
A shutter (30) for shutting off fuel gas ejected from (22) is provided, and the shutter (30) is movable from a shut-off position to an open position in conjunction with an operating lever (7). Pocket lighter according to item (1). 3. The operating lever (7) is slidable in a horizontal direction orthogonal to the vertical direction of the lighter body,
The pocket lighter according to claim 1 or 2, wherein a pressing portion for pressing the burner nozzle (3) is provided in (7). 4. A plate-shaped ignition file (6) extending in the sliding direction of the operation lever (7) is fixed to the operation lever (7), and the ignition stone (5) is attached to the plate-shaped ignition file (6). The pocket lighter according to claim 3, wherein the pocket lighters are pressed against each other at right angles. 5. A nozzle hole (22) in the burner nozzle (3).
The pocket lighter according to claim (1), (2) or (3), characterized in that a porous flow rate control member (34) for controlling the outflow of the fuel gas to a constant flow rate is disposed close to the pocket lighter.