JPH0712749U - Flint lighter operation lock mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lighter operation lock mechanism that can be locked easily and reliably without impairing the appearance and without increasing the number of parts. [Structure] A projection 8d protruding from a lower portion of an operating piece 8c of a valve operating lever 8, a male locking claw 10 formed in an insertion hole 8e of the valve operating lever 8, and the male locking. Female locking claws 11 projecting from the wall surface of the pyroclastic stone support cylinder 4b corresponding to the claws 10
And a biasing member 9 interposed between the projection 8d and the pyrotechnic support tube 4b, and always biases the valve operating lever 8 in the locking direction. The male locking claw 10 is formed so as to project toward the pyrophoric stone support cylinder 4b, and has a tip bent upward. Also,
The female locking claw 11 is provided so as to project from the wall surface of the igniter support cylinder 4b corresponding to the male locking claw 10, and the tip bent downwards of the male locking piece 10 is formed. It can be engaged with the tip.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an operation lock mechanism of a flint type lighter, and more particularly, to a lock mechanism for preventing ignition operation of the lighter by displacing a valve operation lever supported on the top of the lighter.

[0002]

[Prior art]

 Generally, a so-called flint type gas lighter, which rotates a file wheel and rubs a flint to generate a spark on the gas ejection nozzle side, is a gas operated by pushing down a valve operating lever that is swingably supported. The jet nozzle is operated to start the jet of gas, and the spark ignites the gas.

In such a flint type gas lighter, the valve of the gas ejection nozzle is automatically opened by the pushing operation of the valve operating lever, so that a child or the like is expected to operate mischievously. Furthermore, it is feared that it may cause an accident such as a fire or a burn.Therefore, various operation lock mechanisms for gas lighters that are equipped with a stopper that can arbitrarily block the ignition operation of the lighter in order to eliminate such drawbacks are provided. Has been devised.

Conventionally, as an operation lock mechanism of such a lighter, for example, a gas is ejected from a gas ejection nozzle by pressing a valve operation lever supported on the top of the lighter body in the valve opening direction. In the constructed gas lighter, a protrusion is integrally provided on the lower part of the operation piece connected to the free end of the valve operation lever, and the protrusion is housed on the upper surface of the lighter main body when the protrusion is lowered. Is formed so as to open upward, and a transverse groove is formed in the protrusion so as to open downward, and a lock lever is provided in the transverse groove so as to traverse the upper surface of the lighter body. Is slidably accommodated so that it can take a first state in which it is pushed into the projection body and a second state in which the other end on the opposite side is pushed into the projection body. At the end side, in the first state, there is a lock leg portion having a height such that the other end side is sandwiched between the lower surface of the operation piece and the upper edge portion of the lighter body to prevent the operation piece from descending. There was a gas lighter provided on one end side of the lock lever, which has no legs so as to allow the operation piece to descend and descend in the second state (see Japanese Utility Model Publication No. 3-11564). ).

In addition, in a gas lighter configured to eject gas from a gas ejection nozzle by pressing a valve operation lever axially supported on the top of a lighter body in a valve opening direction, operation of the valve operation lever One of the slider pieces is a slider piece that reciprocates toward the windshield side, and a slider piece protrudes from the bottom surface of the slider piece. When the slider piece is slid to a position away from the windshield, the upper edge of the lighter body is slid. There has been a gas lighter provided with a stopper integrally provided with a projection body which is disengaged from the valve operation lever to allow the valve operation lever to descend (see Japanese Utility Model Laid-Open No. 63-142563).

[0006]

[Problems to be solved by the device]

 However, in the conventional operation lock mechanism described above, in the gas lighter disclosed in Japanese Utility Model Publication No. 3-11564, a separate lock lever is unavoidably added and the number of parts increases. In addition, it takes time and labor to open a transverse groove for assembling the lock lever in the protrusion of the valve operating lever, and in addition, the lock lever is exposed to the outside. It impairs the aesthetic appearance of the lighter, and in particular, it reduced the commercial value of high-end gas lighters.

On the other hand, even in the safety device disclosed in Japanese Utility Model Laid-Open No. 63-142563, it is necessary to attach a separate slider piece to the valve operating lever in a slidable manner. Since it has a problem that it takes time and the number of parts increases, it is not possible to meet the needs of a disposable gas writer (so-called 100-yen lighter) that is inexpensive and has the minimum number of parts. there were.

Furthermore, since a fitting groove (not shown) for mounting a stopper is provided on the valve operating lever and the slider piece must be slidably assembled, it is troublesome. All of them required extra parts and assembly man-hours, and there was room to reduce the number of parts.

The present invention has been made in view of the above conventional problems, and a lighter that can be locked easily and surely without impairing the appearance of the lighter and without increasing the number of parts. The purpose is to provide an operation lock mechanism.

[0010]

[Means for Solving the Problems]

 In order to solve the above-mentioned conventional problems and achieve the intended purpose, the structure which is the gist of the present invention is a lighter body having a gas tank inside and an intermediate case attached to the top, and the intermediate case. And a pair of support pieces projecting in an opposing arrangement with the igneous stone support tube in between, a file wheel rotatably supported via the support piece, The igneous stone contained in the igneous stone support cylinder for abutting against the sand wheel and the shaft hole formed in the support piece are pivotally mounted so as to be swingable, and the projecting body is continuously provided on the lower surface. A flint-type lighter comprising a valve operating lever and a valve mechanism for operating the valve operating lever in a valve opening direction so that a gas ejection nozzle is pulled out to eject gas from the tip of the nozzle. Operate lever in one position It is reciprocally movable in the horizontal direction so that the protrusion comes into contact with the fixed part of the intermediate case and is released from the contact with the fixed part at the other position. It exists in the operation lock mechanism of the flint type writer in which a biasing member such as a spring is interposed between the cylinder and the valve to constantly bias the valve operating lever in the locking direction.

Further, the valve operating lever is a male type with a tip protruding upward toward an inside of an insertion hole formed so as to be loosely fitted to an upper end of the flint support cylinder and having a tip bent upward. It is preferable to provide a locking claw, and to dispose a female locking claw whose tip is bent downward on the wall surface of the igniter support cylinder corresponding to the male locking claw.

[0012]

[Action]

 The operation lock mechanism of the lighter of the present invention configured as described above, by pressing the valve operation lever against the urging force of the urging member with the thumb of the hand holding the lighter, As a result of the valve operating lever moving in the horizontal direction and the protrusion protruding below the valve operating lever being disengaged from the fixed portion of the intermediate case, an ignition operation that allows the valve operating lever to descend. It will be in a possible state (unlocked state). When the thumb is separated from the valve operating lever after the ignition operation is completed, the valve operating lever is automatically returned to the original locked position by the biasing force.

Moreover, since the valve operating lever itself is used as a stopper, it is not necessary to add a separate lock lever or slider piece as in the conventional case, and an increase in the number of parts is not forced. Moreover, from the appearance of the lighter, it is possible to engage and disengage the lock mechanism without easily knowing the existence of these locking mechanisms, so that the appearance of the lighter is not spoiled by mischief.

Further, at a desired position of the valve operating lever, more specifically, in a through hole formed so as to be loosely fitted to the upper end of the flint support cylinder, the tip thereof is projected upward toward the flint support cylinder. If the male locking claw that is bent is provided and the female locking claw whose tip is bent downward is arranged on the wall surface of the igniter support cylinder corresponding to the male locking claw, the urging force is increased. When the valve operating lever is pushed horizontally against the above, the male locking pawl is engaged with the female locking pawl to hold the valve operating lever in the unlocked state. Even if the thumb separates from the valve operating lever before the ignition operation, the lever is prevented from immediately returning to its original position.

Then, once the valve operating lever is pushed downward with the thumb, the tip of the upwardly bent male locking pawl comes off the tip of the female locking pawl and the holding The state is released, and at the same time when the thumb is released, the valve operating lever returns to the original locked state.

[0016]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, A is a gas lighter according to the present invention. As shown in FIG. 1, the gas lighter A has a lighter body 1 formed on the surface of a finger shape of a hand held by the hand, and the lighter body 1 An ignition mechanism is attached to the upper end of the through an intermediate case 4 described later.

As shown in FIG. 4, a gas tank 2 is provided inside the lighter body 1, and a tank lid 3 is attached in an airtight state so as to close an upper opening of the gas tank 2.

The gas tank 2 is filled with liquefied gas, and the tank upper lid 3 is integrated with the upper opening thereof by ultrasonic welding or the like to maintain pressure resistance and airtightness between the two.

Further, the tank upper lid 3 is integrally molded with a bottomed cylindrical fitting recess 3a having an upper opening, and a through hole communicating with the gas tank 2 is formed at the center of the bottom surface of the fitting recess 3a. 3b is opened. The valve mechanism 5 is hermetically pressed into the fitting recess 3a.

The valve mechanism 5 includes a cylindrical nozzle-shaped nozzle spiral 5a having an opening at the top end surface and a cylindrical bottomed nozzle bottom plug 5b fitted in the lower opening of the nozzle spiral 5a. A gas ejection nozzle 5c is installed in the valve chamber via an O-ring and a spring so that the upper end of the gas ejection nozzle 5c projects outward from the opening of the nozzle spiral 5a.

The gas ejection nozzle 5c has a hole (not shown) communicating with the gas ejection passage 5d in the radial direction of the outer peripheral surface, and the lower opening of the gas ejection passage 5d is fitted in the lower end portion in a plugged state. The combined valve rubber 5e is provided in a protruding manner, and the tip neck portion of the gas ejection nozzle 5c is operated in the pull-out direction via a valve operating lever 8 to be described later, whereby the lower end surface of the valve rubber 5e is moved. It is assembled so as to perform the opening / closing operation of the valve port described later.

Further, an O-ring (not shown) is fitted to the outer peripheral surface of the nozzle bottom plug body 5b via an annular groove, so that the outer peripheral surface of the nozzle bottom plug body 5b is shielded from the inner peripheral surface of the fitting concave portion 3a which is circumscribed. keeping. Further, a valve port (not shown) is opened on the bottom surface of the nozzle bottom plug 5b, and a nail-shaped stator 5f is fitted to the valve port and protrudes. A ring-shaped filter 5g is interposed between the nail-shaped stator 5f and the bottom surface of the nozzle bottom plug 5b.

On the other hand, as shown in FIGS. 3 to 4, the ignition mechanism of the gas lighter A is rotatably supported by a pair of support pieces 4a, 4a integrally formed with the intermediate case 4. It is composed of a filer 6 (see FIG. 4), a flint 7 mounted below the filer 6, and a valve operating lever 8 for operating the gas ejection nozzle 5c in the pull-out direction.

The flint stone 7 is housed in a flint support tube 4b integrally formed with the intermediate case 4, and the top surface thereof is pressed against the file wheel 6 by a push spring 7a.

Further, as shown in FIG. 3, the valve operating lever 8 is provided with support shafts 8a, 8a projecting on both side surfaces at the center in the longitudinal direction. The support shafts 8a, 8a are supported by the pair of support shafts 8a, 8a. The shafts 4a, 4a are pivotally mounted so as to be swingable in the vertical direction by bearing in shaft holes 4c, 4c formed in the parts 4a, 4a.

Since the valve operating lever 8 has the neck portion of the gas ejection nozzle 5c fitted to the one end side through the open slit 8b, the operating piece 8c continuous to the other end side is provided. When the push-down operation is performed, the valve operating lever 8 swings up and down around the support shaft 8a, and the neck portion of the gas jet nozzle 5c is moved in the pull-out direction.

Moreover, the valve operating lever 8 is assembled so as to be reciprocally movable in the horizontal direction by forming the shaft holes 4c, 4c in a horizontally long elliptical shape (see FIGS. 2 to 3). The hole widths of the shaft holes 4c, 4c determine the horizontal sliding stroke of the lever 8.

On the other hand, the operation lock mechanism of the gas lighter includes an urging member interposed between the projecting body 8d projecting from the lower portion of the operating piece 8c of the valve operating lever 8 and the above-mentioned flint support cylinder 4b. 9, a male locking claw 10 projecting at a desired position of the valve operating lever 8, and a female locking claw 11 projecting on the wall surface of the pyrophoric stone support cylinder 4b. .

The protrusion 8d is provided so as to come in and out of the hollow cylindrical hollow portion 4d formed on the upper surface of the intermediate case 4, and the protrusion 8d and the igniter support. The valve operating lever 8 is constantly urged in the locking direction by the urging member 9 interposed between the valve 4 and the cylinder 4b.

In other words, the valve operating lever 8 is biased in a direction away from the windshield 12 (see FIG. 4), and the protrusion 8d is always in contact with the fixed portion 4e of the intermediate case 4. An unlocking that prevents the valve operating lever 8 from descending (locked state) and pushes it into the windshield side (see FIG. 5) to release the contact with the fixed portion 4e and allow the valve operating lever 8 to descend. It is done in a state.

The male locking pawl 10 is formed in the insertion hole 8e (see FIG. 3B) of the valve operating lever 8 formed so as to be loosely fitted to the upper end of the pyrophoric stone support cylinder 4. It is formed so as to project toward the pyrophoric stone support cylinder 4b, and the tip 10a is bent upward.

Further, the female locking claw 11 is projectingly provided on the wall surface of the igniter support cylinder 4b corresponding to the male locking claw 10, and the tip 11a bent downward is connected to the male locking claw 11. The mold locking piece 10 can be engaged with the tip 10a.

The valve operating lever 8 does not stick out of the lighter body 1 and slides the lever 8 toward the windshield 12 against the urging force of the urging member 9. Unless this is done, the lighter cannot be ignited, so that unintentional and easy ignition operation is reliably prevented.

The operation lock mechanism of the gas lighter according to the present invention having the above-described structure uses the thumb of the hand holding the lighter to move the valve operating lever 8 against the biasing force of the biasing member 9 and the windshield 1. When the valve operating lever 8 is pushed to the 2 side, the valve operating lever 8 moves horizontally and the projection 8d comes off from the fixed portion 4e of the intermediate case 4, and the valve operating lever 8 is allowed to descend. (Unlocked state), the male locking claw 10 is engaged with the female locking claw 11 to hold the valve operating lever 8 in the unlocked state.

Then, a conventional ignition operation is performed, that is, the file wheel 6 is rotated with the thumb of the hand holding the lighter body 1 and the operation piece 8c of the valve operation lever 8 is pushed down as it is. As a result, the igneous stone 7 is rubbed and a spark is generated on the gas ejection nozzle 5c side, and the neck of the gas ejection nozzle 5c is operated in the pulling direction to eject gas from the tip of the gas ejection nozzle 5c. At the moment, the spark ignites and ignites to reveal a flame of a desired length.

Moreover, since the valve operating lever 8 is pushed downward by the thumb, the tip 10a of the male locking claw 10 bent upward is changed to the tip 1 of the female locking claw 11. The engagement state is released after being released from 1a, and at the same time when the thumb is released, the valve operating lever 8 returns to the original locked state.

The operation lock mechanism of the present invention is not limited to this embodiment, and can be freely modified in design within the scope of the present invention, and the present invention includes all of them. It is a sipping thing.

For example, in the present embodiment, the valve operating lever 8 is locked by sliding it in the direction away from the windshield 12, but the invention is not limited to this, and the valve operating lever 8 is not limited to this. It may be assembled so that the protrusion 8d abuts on the upper edge of the intermediate case 4 by pushing and sliding it toward the windshield 12 side to prevent the lowering of the valve operating lever 8.

Further, the mounting position of the biasing member 9 is not limited to this embodiment, and may be arranged anywhere as long as it can bias the valve operating lever 8 in the locking direction. It is good, and more preferably, the biasing member 9 should be arranged below the valve operating lever 8 so that it cannot be visually recognized.

[0040]

[Effect of device]

 The present invention is configured as described above, and can be arbitrarily turned on and off by the horizontal sliding operation of the valve operating lever, and the lock mechanism is sensed from the appearance of the lighter. Since it is engaged and disengaged without doing so, even if you glance at such a lighter (more specifically, the valve operation lever), it is unlikely that it will also function as a stopper, and the child will realize the existence of a lock mechanism. The lighter can be attached to the lighter without being damaged, and the original design of the lighter can be used as it is without damaging the appearance of the writer.

Furthermore, since the valve operating lever itself (specifically, the protrusion on the lower surface of the valve operating lever) also serves as a stopper and it is not necessary to add a separate lock lever or slider piece as in the conventional case, the number of parts is increased. Since the lock mechanism is easily constructed only by assembling the valve operating lever, it requires a lot of labor. The work of assembling the lock mechanism used to be simplified.

Also, unless the valve operating lever is slid in the releasing direction with a finger against the urging force of the urging member, the lighter cannot be ignited and the finger being slid in the releasing direction. When released, the valve operating lever itself automatically returns to the locked state, so it is possible to provide a lighter operation locking mechanism that eliminates forgetting to lock.

Further, at a desired position of the valve operating lever, more specifically, in a through hole formed so as to be loosely fitted to the upper end of the flint support cylinder, the tip thereof is projected upward toward the flint support cylinder. If the male locking claw that is bent is provided and the female locking claw whose tip is bent downward is arranged on the wall surface of the igniter support cylinder corresponding to the male locking claw, the urging force is increased. When the valve operating lever is pushed horizontally against the force, the male locking pawl is engaged with the female locking pawl to hold the valve operating lever in the unlocked state. Even if the thumb separates from the valve operating lever before the operation, the lever can be immediately returned to its original position, and the inconvenience can be solved. The claw is not conspicuous and is formed in the insertion hole of the valve operating lever. As a result, it can be equipped without spoiling the appearance and without the children being aware of the lock mechanism.

Further, the operation lock mechanism of the lighter of the present invention has a simple structure, is suitable for mass production, and can be supplied to users as a low price. But there is a big thing.

[Brief description of drawings]

FIG. 1 is a front view of a lighter according to the present invention.

FIG. 2 is a front view showing a state in which a windshield is removed.

FIG. 3 (a) is an explanatory view showing a mounting position of a male locking claw and a female locking claw, and FIG. 3 (b) is a perspective view of a valve operating lever.

FIG. 4 is a longitudinal sectional view showing a locked state of the operation locking mechanism according to the present invention.

FIG. 5 is a vertical cross-sectional view showing an unlocked state of the operation lock mechanism.

[Explanation of symbols]

 1 Lighter body 2 Gas tank 3 Tank top lid 3a Fitting recess 3b Through hole 3c Vertical hole 4 Intermediate case 4a Support piece 4b Firestone support tube 4c Shaft hole 4d Cavity part 4e Fixing part 5 Valve mechanism 5a Nozzle spiral 5b Nozzle bottom plug 5c Gas Jet nozzle 5d Gas jet passage 5e Valve rubber 5f Nail-shaped stator 5g Filter 6 File wheel 7 Firestone 8 Valve operating lever 8a Spindle 8b Slit 8c Operation piece 8d Projection body 8e Insert hole 9 Energizing member 10 Male locking claw 11 Female locking claw 12 Windshield

Claims (2)

[Scope of utility model registration request] 1. A lighter body having a gas tank inside and an intermediate case attached to the top, a flint support cylinder integrally molded with the intermediate case, and a flint support cylinder disposed in a facing arrangement. A pair of projecting support pieces, a file wheel rotatably supported through the support pieces, a flint contained in the flint support cylinder to abut the file wheel, and the support A valve operating lever that is pivotally mounted in a shaft hole formed in one piece and has a projection on the lower surface, and the gas injection nozzle is pulled out by operating the valve operating lever in the valve opening direction. And a valve mechanism for ejecting gas from the tip of the nozzle, the valve operating lever is such that the protrusion is in contact with the fixed portion of the intermediate case at one position and the other is at the other position. The contact with the fixed part is released. As described above, the valve operating lever is mounted so as to be reciprocally movable in the horizontal direction, and the valve operating lever is always moved in the locking direction by interposing an urging member such as a spring between the protrusion and the igniter support cylinder. Operation lock mechanism of the flint type lighter that is biased. 2. A male engaging member in which the valve operating lever protrudes toward the igneous stone supporting cylinder and has a tip bent upward into an insertion hole formed to be loosely fitted in an upper end of the igneous stone supporting cylinder. 2. A female locking claw having a tip bent downward is provided on the wall surface of the igniter support cylinder corresponding to the male locking claw, in addition to a stop claw. Operation lock mechanism for the described flint type lighter.