JP2556593Y2 - Operation lock mechanism for flint type lighter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a lighter operation lock mechanism which can prevent a pressing means such as a valve operation lever mounted on the top of a lighter from being ignited, and more particularly, to impair the appearance of the lighter. In addition, the ignition operation can be easily and reliably prevented with a simple means that does not require the number of parts, in other words, with only the minimum number of parts excluding extra parts such as a lock lever and a slider piece as in the conventional case. In the lighter operation lock mechanism.

[0002]

2. Description of the Related Art Generally, in a gas lighter, a gas ejection nozzle is operated by pressing down a pressing means such as a valve operating lever to start gas ejection, and a spark is generated by operating an ignition means, thereby causing gas ignition. Is being done. Such gas lighters are roughly classified into a piezoelectric ignition type lighter (a so-called piezo lighter) that uses a piezoelectric unit that generates a high voltage by striking a piezoelectric element with a striking mechanism and ignites with spark discharge. There is a file-type lighter (so-called flint-type lighter) that ignites with sparks at that time.

[0003] In these gas lighters,
Since the valve of the gas ejection nozzle is automatically opened by the pushing operation of the pressing means such as the valve operating lever and the like, a spark is instantaneously generated and the flame is ignited, it is expected that children and the like will operate with mischief. In addition, since it is feared that it may cause an accident such as a fire or a burn, a gas lighter operation lock mechanism which also has a stopper capable of arbitrarily preventing the lighter from being ignited in order to eliminate such a drawback is provided. Various things were devised.

Conventionally, as an operation lock mechanism for such a writer, for example, as shown in FIG.
A gas lighter which is configured to cause gas to be ejected from a gas ejection nozzle by pressing a valve operation lever 8 supported on the top of the valve in the valve opening direction is connected to a free end of the valve operation lever 8. A projection (operation leg portion) 8d is integrally provided below the operating piece 8c, and a hollow portion (on the upper surface of the lighter body 1) for accommodating the projection body (operation leg portion) 8d when the projection body 8d descends. A leg storage room) 11 is provided so as to open upward (see FIG. 24 (B)), and a transverse groove 12 that opens downward across the protrusion (operation piece leg portion) 8d is formed. In the transverse groove 12, a lock lever 13 is traversed on the upper surface of the lighter main body 1 and one end 13a of the lock lever 13 is pushed into the protruding body (operating leg portion) 8d. Press on the projection (operation leg) 8d The lock lever 13 is slidably housed so as to be able to assume a second state, and the other end 13b of the lock lever 13 is in contact with the lower surface of the operation piece 8c in the first state. A lock leg 13c is provided between the upper edge 1a of the lighter body 1 and the height to prevent the operation piece 8c from descending, and one end 13a of the lock lever 13 is in the second state. There is a gas lighter having a legless portion 13d so as to allow the operation piece 8c to descend (see Japanese Utility Model Publication No. 3-11564).

Further, as shown in FIG. 25, a gas is configured to be ejected from a gas ejection nozzle by pressing a valve operating lever 8 mounted on the top of the lighter main body 1 in a valve opening direction. In the lighter, the operation piece 8c of the valve operation lever 8 includes a slider piece 14 that can freely reciprocate toward the windshield 10 side,
4 and projecting from the lower surface of the windshield 10
When the lighter body 1 is slid to a position away from the
There is a gas lighter provided with a stopper integrally provided with a projection 8d for allowing the valve operating lever 8 to move down from the upper edge portion 1a (Japanese Utility Model Application Laid-Open No. 63-14256).
No. 3).

[0006]

SUMMARY OF THE INVENTION However, among the conventional operation lock mechanisms described above, Japanese Utility Model Publication No. 3-11564.
In the gas lighter disclosed in Japanese Patent Laid-Open Publication No. H11-129, a separate lock lever 13 is added without inevitability, so that the number of parts increases, and the projection (operation leg portion) 8d of the operation lever 8 is attached to the gas lighter. In addition, it is necessary to open the transverse groove 12 for assembling the lock lever 13, which is troublesome. Also, the exposure of the lock lever 13 to the outside impairs the aesthetic appearance of the lighter, and particularly reduces the commercial value of a high-grade gas lighter. Moreover, in such a lock mechanism, every time the lighter is used, a lock operation such that the lock lever 13 must be pulled out with a finger and the lever 13 must be pushed in after ignition is used is forced. In addition to the fact that such a lock operation cannot be performed with only the hand (one hand) that is being gripped, it is difficult to use and often forgets to lock.

On the other hand, the aforementioned Japanese Utility Model Application Laid-Open No. 63-142563 has been disclosed.
In the safety device disclosed in Japanese Patent Application Laid-Open Publication No. H11-157, the separate slider piece 14 must be slidably assembled in the valve operation lever 8, so that it takes time to manufacture and assemble. However, since the number of parts increases, it is impossible to meet the needs of a disposable gas lighter (a so-called one hundred yen lighter) which is inexpensive and has a minimum number of parts. Furthermore, in such a safety device, for example, when the lighter is placed in a pocket or the like, the fingertip of the hand that has casually entered the pocket touches the slider piece 14 and slides in the release direction. For example, there is a problem that the lock is easily and easily unlocked.

Further, since the valve operating lever 8 must be provided with a fitting groove (not shown) and the slider piece 14 must be slidably assembled, a mold having a completely different shape from the conventional valve operating lever. And the existing lighter parts could not be utilized. Furthermore, these conventional lock mechanisms require extra parts and assembling man-hours, such as separate lock levers and slider pieces, and there is still room for reducing the number of parts.

The present invention has been made in view of such conventional problems, and does not impair the appearance of the lighter and uses simple means that does not require the number of parts, in other words,
The purpose of the present invention is to provide an operation lock mechanism for a lighter that can easily and reliably prevent ignition with a minimum number of parts by eliminating unnecessary parts such as a lock lever and a slider piece as in the past. In addition to being able to release the locked state with only one hand (only with one thumb), it can automatically return to the locked state after ignition (specifically, when the thumb is released from the valve operation lever). The main purpose of the present invention is to provide a simple lighter operation lock mechanism to consumers at a low cost in order to meet the needs of a so-called one hundred yen lighter (while utilizing existing lighter parts as it is).

[0010]

[0011]

[0012]

SUMMARY OF THE INVENTION The conventional problems as described above.
Of the present invention to solve the problem and achieve the intended purpose.
The configuration includes a file wheel attached to the top of the lighter body via a pair of support pieces, a igniter support cylinder disposed below the file wheel, and a shaft opened at a desired position of the support piece. A valve operating lever in which a support shaft swingably supported by the hole and a projecting body projecting from the lower surface are connected, and a gas ejection nozzle for ejecting gas by pressing the valve operation lever in the valve opening direction. The valve operating lever is in contact with the fixing portion of the lighter body at one position to prevent the pressing operation, and at the other position, the contact with the fixing portion is released to allow the pressing operation. In the operation lock mechanism of the flint type lighter, the stopper is always urged to the pressing operation preventing position through the reciprocating operation of the stopper and the urging member such as a repellent member. The support shaft is horizontally long Between the projection and the igniter support cylinder so that the projection is always engaged with the upper edge of the lighter body while being slidably fitted in the shaft hole of the support piece. And an engaging piece is continuously provided on the surface of the valve operating lever, and the valve operating lever is provided on the outer peripheral surface of the igniter support cylinder corresponding to the engaging piece. Engagement when engaged with the engagement piece to hold the valve operating lever in an unlocked state when slid to the side, and release the engagement with the engagement piece when the ignition operation is performed. Operation lock mechanism for a flint type lighter with a projection
Exists .

Further, a file wheel attached to the top of the lighter body via a pair of support pieces, a igniter support cylinder disposed below the file wheel, and an opening at a desired position of the support piece. A valve operating lever having a support shaft swingably supported by a shaft hole and a projection projecting from the lower surface, and a gas for ejecting gas by pressing the valve operating lever in the valve opening direction. An ejection nozzle, and the valve operation lever includes:
At one position, it contacts the fixing part of the lighter body and
Operation is prevented, and contact with the fixed part is released at the other position.
The stopper to reciprocate to allow the pressing operation
While assembling freely, the urging member
In the operation lock mechanism of the flint type lighter which always urges the stopper to the pressing operation preventing position, the support shaft of the valve operation lever is slidably fitted into the horizontally formed shaft hole. And the urging member is interposed between the protrusion and the igniter support tube so that the protrusion is always engaged with the upper edge of the lighter body, and the valve operation is performed. On the side surface of the lever, there is provided an engagement piece which is brought into contact with the inner side surface of the support piece to hold the lever in an unlocked state when the lever is slid to the windshield side. A relief groove for releasing the contact with the engaging piece when the valve operating lever is operated by ignition may be continuously provided on the inner surface of the supporting piece with which the piece contacts.

A pair of support pieces are provided on the top of the lighter body.
And a file mounted under the file wheel
Ignited stone support cylinder and an opening at a desired position of the support piece.
Shaft that is swingably supported by the shaft hole
Valve operating lever having a plurality of projections connected thereto, and the valve operating lever
Gas in the direction of valve opening to eject gas.
Gas ejecting nozzle, and the valve operating lever is provided with one
The lighter body at the other
Operation, and the contact with the fixed part is released at the other position.
Move the stopper back and forth to allow the pressing operation.
As well as through a biasing member such as a repellent.
In the operation lock mechanism of the flint type lighter which always urges the topper to the pressing operation preventing position, the valve operation is performed.
The support shaft of the operating lever is slidable in the shaft hole formed horizontally.
And the valve operation lever itself is always
Energize via the urging member in a direction away from the windshield
As a result, the projection of the valve operating lever is
The valve is also operated as a par, and the valve is operated against the biasing force.
When the lever is slid toward the draft shield, the outer edge of the valve
Or at least one that engages or presses into the slit
The above protruding pieces may be provided on the inner wall surface of the windshield .

[0015]

[0016]

In particular, since the valve operating lever itself (specifically, the projection on the lower surface of the valve operating lever) is also used as a stopper, it is not necessary to add a separate lock lever or slider piece as in the prior art, and the number of parts increases. Is not forced.

[0018]

[Function] The flint type line of the present invention configured as described above.
The operation lock mechanism of the heater includes a file wheel mounted on the top of the lighter body via a pair of support pieces, a igniter support cylinder disposed below the file wheel, and an opening at a desired position of the support piece. A valve operating lever in which a supporting shaft swingably supported by the formed shaft hole and a projection projecting from the lower surface are connected, and gas is ejected by pressing the valve operating lever in the valve opening direction. A gas ejection nozzle, wherein the valve operating lever abuts a fixed portion of the lighter main body at one position to prevent the pressing operation, and abuts the fixed portion at the other position to release the pressing operation. In the operation lock mechanism of the flint type lighter, the stopper is always urged to the pressing operation preventing position while the stopper is reciprocally movably assembled so as to allow the stopper, and the stopper is always urged to the pressing operation preventing position via an urging member such as a repellent. Valve operating lever The protrusion and the igniter are fitted such that a shaft is slidably fitted in a shaft hole of the horizontally long support piece and the protrusion is always engaged with an upper edge of the lighter body. The urging member is interposed between the supporting cylinder and the engaging piece connected to the surface of the valve operating lever, and the outer peripheral surface of the igniter stone supporting cylinder corresponding to the engaging piece is When the valve operating lever is slid toward the windshield, the valve operating lever is engaged with the engaging piece to hold the valve operating lever in an unlocked state, and when the ignition operation is performed, the engagement with the engaging piece is performed. When the valve operating lever is slid in the release direction with the thumb, the engaging piece is once engaged with the engaging convex portion so that the valve operating lever is released. Will be held in the unlocked state, and then when the push-in operation of the valve operating lever is performed. Since the engagement between the engagement piece and the engagement projection is released, the lever returns to horizontal as the gas ejection nozzle descends as soon as the thumb is released from the valve operation lever after ignition. However, the state automatically returns to the original locked state.

Further, the engaging projection is provided on the outer peripheral surface of the igniter support cylinder, and the surface of the valve operating lever corresponding to the engaging projection (specifically, in the center opening of the lever) is provided. An effective use of dead space can be achieved by projecting an engagement piece and interposing an urging member such as a spring between the igniter stone support cylinder and the projection provided on the lower surface of the valve operation lever. In other words, the lock mechanism is not bulky and the shape of the entire lighter is not complicated, and the appearance is not mischievously spoiled.

Further, a file wheel mounted on the top of the lighter body via a pair of support pieces, a igniter support cylinder disposed below the file wheel, and an opening at a desired position of the support piece. A valve operating lever having a support shaft swingably supported by a shaft hole and a projection projecting from the lower surface, and a gas for ejecting gas by pressing the valve operating lever in the valve opening direction. e Bei the ejection nozzle, the valve operating lever,
At one position, it contacts the fixing part of the lighter body and
Operation is prevented, and contact with the fixed part is released at the other position.
The stopper to reciprocate to allow the pressing operation
While assembling freely, the urging member
In the operation lock mechanism of the flint type lighter which always urges the stopper to the pressing operation preventing position, the support shaft of the valve operation lever is slidably fitted into the horizontally formed shaft hole. And the urging member is interposed between the protrusion and the igniter support tube so that the protrusion is always engaged with the upper edge of the lighter body, and the valve operation is performed. On the side surface of the lever, there is provided an engagement piece which is brought into contact with the inner side surface of the support piece to hold the lever in an unlocked state when the lever is slid to the windshield side. When the valve operation lever is fired, an escape groove for releasing the contact with the engagement piece is provided continuously on the inner surface of the support piece with which the piece abuts. When sliding horizontally in the release direction, once the engagement piece The valve operating lever is held in the unlocked state by being brought into contact with the inner wall surface of the supporting piece, and then, when the ignition operation of the valve operating lever is performed, the engaging piece falls into the relief groove and the support The engagement with the piece (specifically, the inner surface) is released. Therefore, as described above, at the same time when the thumb is released from the valve operating lever, the operating lever is automatically returned to the original locked state via the urging force of the urging member.

Further, the support shaft of the valve operating lever is formed in a horizontally long shape.
Slidably fitted in the formed shaft hole, and
The starting member always engages with the fixing portion of the lighter body.
The valve operating lever urged by the urging member is
When the valve is slid toward the draft shield against the force,
Inside the windshield to engage or press against the outer edge or slit
If it is provided <br/> holding means comprising at least one or more projecting pieces were scooped O cut into the wall to the windshield, that Do allow assembly easier than the lighter components of the existing leverage as it is.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a lighter operation lock mechanism (basic device) according to the present invention will be described with reference to FIGS. A in the figure is a gas lighter provided with the operation lock mechanism according to the present invention, and this gas lighter A is airtightly integrated above a gas tank 2 formed in the lighter body 1 as shown in FIG. Tank lid 3 is provided. The gas tank 2 is filled with a liquefied gas, and the tank upper lid 3 is integrated with the upper opening by ultrasonic welding or the like to maintain the pressure resistance and airtightness between the two. An ignition mechanism described below is mounted on the tank upper lid 3 via an intermediate case 4.

As shown in FIGS. 3 and 4, the tank upper lid 3 has a bottomed cylindrical fitting recess 3a having an open upper side.
Are formed integrally, and a through hole 3b communicating with the gas tank 2 is opened at the center of the bottom surface of the fitting concave portion 3a. The valve 5 is hermetically pressed into the fitting recess 3a.

The valve 5 includes a tubular spiral nozzle spiral 5a having an opening at the top end face, and a cylindrical tubular bottom plug 5b fitted to the lower opening of the spiral spiral 5a. A valve chamber 5c is formed, and inside the valve chamber 5c, a gas ejection nozzle 5d is provided via an O-ring and a spring.
Is mounted so that the upper end protrudes outward from the opening of the nozzle spiral 5a.

This gas ejection nozzle 5d has a perforation (not shown) communicating with the gas ejection passage 5e in the radial direction of the outer peripheral surface, and the lower opening of the gas ejection passage 5e is fitted at its lower end in a sealed state. The valve rubber 5f is protrudingly provided, and the distal end neck of the gas ejection nozzle 5d is operated in the pulling-out direction via a valve operating lever 9 to be described later.
The lower end face is mounted so as to open and close a valve port to be described later.

An O-ring 5g is fitted on the outer peripheral surface of the nozzle bottom plug body 5b through an annular groove to maintain the shielding property with the inner peripheral surface of the circumscribed fitting concave portion 3a. . Further, a valve port (not shown) is opened on the bottom surface of the nozzle bottom plug 5b, and a nail-like stator 5h is fitted to the valve port to protrude. A ring-shaped filter 5i is interposed between the nail-shaped stator 5h and the bottom surface of the nozzle bottom plug 5b.

On the other hand, the ignition mechanism of the gas lighter A is as follows.
As shown in FIGS. 3 and 4, a file wheel 6 rotatably supported via a pair of support pieces 4 a, 4 a (see FIG. 2) integrally formed with the intermediate case 4. It comprises a igniter 7 mounted below and a valve operating lever (pressing means) 8 for operating the gas ejection nozzle 5d in the extraction direction. The igniter stone 7 is accommodated in an igniter stone support cylinder 4D of the intermediate case 4 fitted in the vertical hole 3c of the tank upper lid 3, and the top surface thereof is pressed against the file wheel 6 by an extruding spring 9.

As shown in FIG. 5, the valve operating lever 8 is provided with supporting shafts 8a, 8a projecting from both sides at the center in the longitudinal direction.
The shafts 4b and 4b (see FIGS. 1 and 2) formed in the shafts a and 4a are pivotally mounted in a vertically swingable manner. Further, as shown in the figure, the shaft holes 4b, 4b are formed in a horizontally long elliptical shape, and a reduced diameter projectingly provided on the inner peripheral surface thereof so as to be in pressure contact with the support shaft 8a of the operation lever 8. The portion 4c is provided continuously (see FIGS. 1 and 2). Accordingly, the valve operating lever 8 is pushed into the windshield side or pulled back against the pressure contact force (frictional force) between the reduced diameter portion 4c and the support shaft 8a, whereby the valve operating lever is operated. Numeral 8 denotes a unit which is displaceable in a reciprocating manner in the horizontal direction. The horizontal sliding stroke of the valve operating lever 8 is determined by the relationship between the lateral width of the shaft holes 4b, 4b and the length of a slit 8b described later.

Also, at one end of the valve operating lever 8,
The neck of the gas ejection nozzle 5d is fitted through a slit 8b (see FIG. 3) communicating with the outer peripheral edge of the gas ejection nozzle 5d. The valve operation lever 8 swings up and down around the support shafts 8a, 8a to move the neck of the gas ejection nozzle 5d in the extraction direction.

Further, a lower cylindrical hollow portion 3d formed on the upper surface of the lighter main body 1 is provided below the operation piece 8c.
A downwardly projecting body 8d protruding so as to enter and exit the inside is integrally formed, and when the valve operation lever 8 is slid in a direction away from the windshield 10 (see FIG. 3), the projecting body is formed. 8d abuts on the upper edge 1a of the lighter body 1 to prevent the valve operating lever 8 from lowering (locked state) and push it back to a fixed position (see FIG. 4) to abut on the upper edge 1a. And constitutes a lighter operation lock mechanism that allows the valve operation lever 8 to descend. The valve operating lever 8 does not protrude from the lighter main body 1 and the valve operating lever 8 once slid in the locking direction is connected to the reduced diameter portion 4c of the shaft hole 4b. Unless the lever 8 is slid in the release direction with a finger against the pressure contact force (frictional force) with the support shaft 8a, the lighter cannot be ignited, so that an unintended and easy ignition operation is surely performed. Is to be prevented.

When the operation lock mechanism of the gas lighter according to the present invention thus constructed is not used, the valve operation lever 8 is slid in a direction away from the windshield 10 side, so that the projection 8d below the lever 8 is provided. Is locked in the upper edge portion 1a of the lighter main body 1 so as to prevent the ignition operation (see FIG. 3), and the thumb is used to grasp the lighter main body 1 using the thumb. The valve operating lever 8 is connected to the shaft hole 4b,
Pressing force (frictional force) between the reduced diameter portion 4c of 4b and the support shaft 8a.
When the sliding member is pressed and slid toward the windshield side, as shown in FIG. 4, the projection 8d is disengaged from the upper edge portion 1a and the valve operating lever 8 can be pushed downward (unlocked state).
Is made. Next, by performing a conventional ignition operation, that is, by rotating the file wheel 6 with the thumb of the hand gripping the lighter main body 1, the valve operating lever 8 is held as it is.
By pressing down the operation piece 8c of the
Is rubbed, a spark is generated on the gas ejection nozzle 5d side, and the neck of the gas ejection nozzle 5d is operated in the pulling direction,
The lower end surface of the valve rubber 5f is separated from the upper surface of the valve port to open the valve, and the liquefied gas in the gas tank 2 is supplied to the nail-shaped stator 5f.
h, and reaches the filter 5i via the peripheral surface of the stator 5h and evaporates. Further, the vaporized gas passes through the filter 5i, passes through the gap between the nail-shaped stator 5h and the valve port of the nozzle bottom plug 5b, and further has a perforation (not shown) opened in the radial direction of the gas ejection nozzle 5d. ), And reaches the inside of the gas ejection path 5e, and is ejected outward from the tip of the gas ejection nozzle 5d. At that moment, the spark ignites and ignites to produce a flame of a desired length.

In this embodiment, the valve operating lever 8 is locked by sliding the valve operating lever 8 away from the windshield 10. However, the present invention is not limited to this. As shown in FIG. the assembled valve operation lever 8 so that the protrusion 8d ₁ by sliding pushing windshield 10 side can prevent contact with the descent of the valve operating lever 8 to the upper edge 1a ₁ of the lighter body 1 May be.

Next, the operation lock mechanism according to the present invention (second embodiment)
An embodiment of the present invention will be described with reference to FIGS. The same parts as those in the embodiment of the first invention are denoted by the same reference numerals, and different structures will be described below. FIG.
FIG. 4 is an explanatory view showing a main part (locked state) of the lighter provided with the lighter operation lock mechanism according to the present invention, so that the valve operation lever 8 pushed into the windshield side can automatically return to the original lock position. In other words, in other words, the valve operating lever 8
The projection body 8d protruding from the lower surface of the lighter 1 always urges the operating lever 8 via an urging member 9a so as to be engaged with the upper edge of the lighter main body 1.

The urging member 9a is interposed between the two members so that the front end of the urging member 9a is in contact with the outer peripheral surface of the above-described igniter support cylinder 4D and the rear end is in contact with the inside of the projection 8d.
d always abuts on the upper edge 1a of the lighter body 1 to prevent the valve operating lever 8 from lowering (see FIGS. 10 and 13B), and causes the lever 8 to resist the urging force. Pushing back to the windshield releases the contact with the upper edge 1a (FIG. 1).
4 (B)), and constitutes a lighter operation lock mechanism which allows the valve operation lever 8 to be lowered (see FIG. 14 (C)).

As shown in FIG. 12, engagement pieces 8f, 8f protrude from the center opening of the valve operation lever 8. The engagement pieces 8f, 8f project from the outer peripheral surface of the igniter support cylinder 4b when the valve operation lever 8 is horizontally moved to the windshield side against the urging force of the urging member 9a. The projections 4d, 4d engage with the projections 4d, 4d (see FIGS. 11 (A) and 11 (C)).
It is provided so as to be disengaged from d.

Accordingly, the operation lock mechanism of the gas lighter according to the present invention having the above-described structure, as shown in FIGS. 10 and 13, releases the valve operation lever 8 which is always kept locked by a finger. 14A, the engagement pieces 8f, 8f are engaged with the engagement protrusions 4d, 4d to temporarily hold the valve operation lever 8 in the unlocked state (FIG. 14 (A)). ) (B)), and then, when the push-in ignition operation of the valve operation lever 8 is performed (see FIG. 14C), the engagement pieces 8f, 8f and the engagement projections 4d, 4d are firstly connected. Since the engagement is released, after the ignition operation, the moment the thumb is released from the valve operation lever 8, the valve operation lever 8 returns to the horizontal state as the gas ejection nozzle 5d descends and returns to the original locked state. Automatically returns to the lock. It does ignition operating (erroneous ignition) in which is securely prevented.

Further, if the free end side of the urging member 9a (the side that comes into contact with the igniter support cylinder 4D) is free (abuts in a displaceable state) without being fixed, the valve operating lever 8 can be moved up and down. Even if it moves, it can always be arranged so as to be orthogonal to the outer wall surface of the igniter stone support cylinder 4D. Further, by attaching the urging member 9a to the side surface of the projection 8d on the windshield side through the cutout or the through hole 8e, provisional command,
The urging member 9a does not come off easily even if the valve operation lever 8 is pressed to swing vertically.

Next, the operation lock mechanism according to the present invention (third embodiment)
An embodiment of the present invention will be described with reference to FIGS. The parts common to the embodiments of the first and second inventions are denoted by the same reference numerals, and different parts will be described below. FIG. 15 is an explanatory view showing the main part (locked state) of the lighter provided with the lighter operation lock mechanism according to the present invention. The laterally elongated shaft hole 4b into which the valve operation lever 8 is loosely fitted is substantially rectangular. It is bent.

On both sides of the valve operating lever 8,
As shown in FIG. 16, engagement pieces 8f, 8f separate from the support shafts 8a, 8a are protruded. These engagement pieces 8f, 8
f is the inner surface of the support pieces 4a, 4a connected to the intermediate case 4 (specifically, a reduced diameter portion of a relief groove described later) when the lever 8 is horizontally slid toward the windshield. The valve operating lever 8 is kept in an unlocked state by contact.

Further, escape grooves 4f, 4f are continuously provided on the inner surfaces of the support pieces 4a, 4a. As shown in FIG. 17A, the escape grooves 4f have a reduced diameter portion and a large diameter portion. When the valve operation lever 8 is horizontally slid toward the windshield, the relief grooves 4f, 4f are engaged with each other. The mating pieces 8f, 8f are pressed against the reduced diameter portion of the upper half portion to hold the lever 8 in an unlocked state (see FIGS. 18A and 18B). 8f, 8f are recessed so as to fall into the large-diameter portion of the lower half portion and release contact with the reduced-diameter portion (see FIGS. 18C and 18D).

With the operation lock mechanism of the present invention configured as described above, when the valve operation lever 8 is horizontally slid in the release direction with the thumb, the engagement pieces 8f, 8f are once brought into contact with the support pieces 4a, 4f. The valve operating lever is held in an unlocked state by being brought into contact with the inner wall surface of 4a (specifically, the reduced diameter portion of the relief groove 4f). The mating pieces 8f, 8f fall into the relief groove 4f (more specifically, the large diameter portion of the relief groove 4f) and
In order to release the contact engagement with the inner surfaces of the valve operating levers a and 4a, the thumb is released from the valve operating lever 8 and at the same time, the operating lever 8 is automatically reset by the urging force of the urging member 9a. To return to the locked state.
Since the d is unnecessary, the lock mechanism can be provided with a simpler configuration than the embodiment of the second invention.

Next, the operation lock mechanism according to the present invention (fourth embodiment)
An embodiment of the present invention will be described with reference to FIGS. The parts common to the embodiments of the first, second and third inventions are denoted by the same reference numerals, and the parts having different configurations will be described below. FIG. 19 is a perspective view of a windshield mounted on the lighter according to the present invention. The windshield includes a flame hole 10a having a radial slit connected to the top surface, and a projecting piece 10 projecting inward.
b, 10b (holding means).

The protruding pieces 10b, 10b are formed by making cuts of a desired size in the front wall of the windshield 10 and bending the cuts inward (to the inner wall surface side of the windshield). The free end (tip) is bent inward so that the tip end of the valve operating lever 8 horizontally slid toward the windshield against the urging force of the urging member 9a can be engaged and held (FIG. 2).
0). It is preferable that recesses are provided on both side edges of the valve operation lever 8 so that the tips of the protruding pieces 10b, 10b are securely engaged.

The thus constructed operation lock mechanism of the present invention is such that the valve operating lever 8 is horizontally slid in the releasing direction with the thumb, that is, in the windshield side, against the urging force of the urging member 9a. For example, as shown in FIG. 22, the distal end side of the valve operating lever 8 is engaged with the projecting pieces 10b, 10b of the windshield 10 to hold the lever 8 in an unlocked state (not shown). When the ignition operation of the lever 8 is performed, the tip of the valve operation lever 8 is disengaged from the protruding pieces 10b, 10b to release the engagement (see FIG. 22). At the same time, the operating lever 8 automatically returns to the original locked state via the biasing force of the biasing member 9a (see FIGS. 20 to 21).
Since the engagement protrusion 4d and the engagement piece 8f are not required,
The lock mechanism can be provided with a simpler configuration than the embodiments of the second and third inventions. Moreover, above all, there is an advantage that existing lighter parts can be utilized as they are.

In this embodiment, the projecting pieces 10b, 1b are engaged so that both side edges of the valve operating lever 8 can be engaged.
0b is formed, but the present invention is not limited to this, and the protruding piece 10b may be protruded so as to be press-fitted into the slit 8b of the valve operating lever 8. Also,
The position and the number of the protruding pieces 10b are not limited to those in the present embodiment.

As described above, the lock mechanism (basic device) and the basic device capable of setting the ignition operation operable state and the impossible operation state by displacing (horizontally sliding) the conventional valve operating lever mounted on the lighter. Although the invention has been described with reference to an embodiment, the lighter operation lock mechanism of the present invention is not limited to these embodiments, and can be freely designed and changed within the scope of the present invention. Yes, the present invention encompasses all of these.
For example, in the present embodiment, the urging member 9a is provided between the outer peripheral surface of the rear end of the igniter support cylinder 4D and the projection 8d of the valve operating lever 8.
However, the valve operating lever 8 may be disposed anywhere as long as it can urge the valve operating lever 8 in the locking direction.
As shown in FIG. 21, between the inner wall surface of the windshield 10 and the tip of the valve operating lever 8 or between the front end of the igniter support cylinder 4D and the first half in the center opening of the valve operating lever 8 (not shown). ), The urging member 9a can be mounted so as not to be sensed from the outside. Further, in this embodiment, a flint type lighter is described. However, the present invention is not limited to this, and it is needless to say that the present invention can also be applied to a piezo lighter having an ignition operator that slides in a vertical direction. Nor.

The "upper edge of the lighter body" referred to in the present specification is not only the "lighter body" but also the "upper edge of the top cover" or the "upper edge of the intermediate case" corresponding to the top surface portion. It further encompasses the "part" and also the "upper edge of the exterior case", and encompasses all the upper edges facing the lower surface of the valve operating lever 8.

[0048]

[0049]

The present invention is configured as described above, and the support shaft of the valve operating lever is slidably fitted in the shaft hole of the horizontally long support piece, and the protrusion is always in contact with the shaft. The urging member is interposed between the protrusion and the igniter support tube so as to be engaged with the upper edge of the lighter body, and an engaging piece is continuously provided on the surface of the valve operating lever. , On the outer peripheral surface of the igniter stone support cylinder corresponding to the engagement piece,
When the valve operating lever is slid toward the windshield, the valve operating lever is engaged with the engaging piece to hold the valve operating lever in an unlocked state, and when the ignition operation is performed, the engagement with the engaging piece is performed. By providing the engagement convex portion for releasing the engagement, when the valve operation lever is slid in the release direction with the thumb, the engagement piece is once engaged with the engagement convex portion to operate the valve. Since the lever is held in the unlocked state and then the engagement between the engagement piece and the engagement projection is released only when the push-in operation of the valve operation lever is performed, a series of ignition operations is performed. In particular, when rotating a file wheel, etc. (specifically, at the moment when the thumb is put on the file wheel), even if the thumb is released from the valve operation lever, the valve operation lever returns to the locked state as soon as possible. The inconvenience of the valve operation can be eliminated, and the valve operation The locker automatically returns to the original locked state, and from the appearance of the lighter, the locking mechanism can be engaged and disengaged without being sensed. Pressing means such as
At a glance, it is unexpected that it also serves as a stopper, it has the effect that the child can attach it to the lighter without realizing the existence of the lock mechanism, and the original design of the lighter can be used as it is It doesn't hurt the writer's appearance by mischief. In addition, since the projection of the valve operating lever is also used as a stopper, there is no need to add a separate lock lever or slider piece as in the related art, and the number of parts other than the repellency is forced to increase. Since the lock mechanism can be easily configured simply by assembling the normal parts, the work of assembling the lock components, which required a lot of trouble in the past, becomes unnecessary. It is an object of the present invention to provide a useful flint type lighter operation lock mechanism, which has the effect of being able to meet the needs of a lighter (disposable lighter) at a low cost to a customer.

In addition, the engaging projection is provided on the outer peripheral surface of the igniter support cylinder connected to the intermediate case, and the surface of the valve operating lever corresponding to the engaging projection (specifically, If the engaging piece protrudes from the center opening of the lever) and an urging member such as a spring is interposed between the igniter support cylinder and the protrusion provided on the lower surface of the valve operating lever, Effective use of the dead space can be achieved, and the lock mechanism is not bulky, so that the shape of the entire lighter is not complicated and the appearance is not mischievously spoiled.

[0052] Furthermore, the support shaft before Kiben operating lever with slidably fitted into the shaft hole which is horizontally formed, the protrusion is constantly engaged with the upper edge portion of the lighter body The urging member is interposed between the projecting body and the igniter stone support cylinder so that the valve operating lever is supported on the side surface of the valve operating lever when the lever is slid toward the windshield. An engagement piece that comes into contact with the inner surface of the piece to hold the lever in an unlocked state is protruded, and the valve operation lever is operated on the inner surface of the support piece with which the engagement piece contacts. In this case, the relief groove for releasing the contact with the engagement piece is provided continuously, so that when the valve operation lever is horizontally slid in the release direction with the thumb, the engagement piece once becomes the support piece. The valve operating lever is held in an unlocked state by being in contact with the inner wall surface, If the ignition operation of the operation lever is performed, the engagement piece falls into the relief groove to release the engagement with the support piece (specifically, the inner side surface). Besides easy unlocking and locking of the forgotten that against the will in Do configuration is eliminated, writer
From the appearance of the lock mechanism, the lock mechanism was not felt and the
Such lighters (more specifically, valve operating levers, etc.)
At a glance, it also serves as a stopper
Unexpectedly, children realize the existence of a lock mechanism
Has the effect that it can be attached to a lighter without being
And use the original design of the writer as it is.
It does not hurt the writer's appearance by mischief.
Moreover, the protrusion of the valve operating lever is used as a stopper.
Since it is also used as a separate lock lever
It is not necessary to add a slider or a slider piece.
The effect that the number of parts is not forced to increase
It is easy to perform simply by assembling parts normally.
Lock mechanism, which has conventionally required a lot of trouble.
Assembly work of the lock components
Meet the needs of a 100 yen lighter (disposable lighter)
Low cost and can be provided to customers.
And an operation lock mechanism for a flint type lighter.

A holding means for holding the valve operating lever, which has been slid toward the windshield against the urging force of the urging member, in an unlocked state, instead of the engaging projection or the engaging piece; In particular, if at least one protruding piece cut into the windshield inner wall so as to engage with or press against the outer edge or slit of the valve operating lever is provided on the windshield, the existing lighter parts can be utilized as it is. It is possible to provide a lighter operation lock mechanism that can be more easily assembled.

As described above, the operation lock mechanism of the flint type writer according to the present invention can be replaced by a very simple means which does not impair the appearance of the writer and does not require the number of parts.
In other words, only the minimum number of parts, which eliminates extra parts such as a lock lever and a slider piece as in the related art, is used (the repulsion 1).
It is possible to prevent ignition simply and reliably by simply adding a book, and to use existing lighter parts as they are.
A simpler locking mechanism.
At first glance, it is not expected that it also has a locking mechanism.
I don't think children can realize the existence of the lock mechanism
Can be attached to a lighter, and a 100 yen lighter (disposable
Low cost to meet customers' needs
It can be provided .

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a main part of a lighter operation lock mechanism (locked state) according to the present invention.

FIG. 2 is an explanatory diagram showing a main part of the operation lock mechanism (unlocked state).

FIG. 3 is a longitudinal sectional view of a main part showing a locked state of the operation lock mechanism.

FIG. 4 is a longitudinal sectional view of a main part showing the unlocked state of the operation lock mechanism.

FIG. 5 is a side view of a valve operating lever used in the embodiment.

FIG. 6 is a longitudinal sectional view of a lighter used in the present embodiment.

FIG. 7A is a side view showing another embodiment of the valve operating lever, and FIG. 7B is a plan view of the same.

FIG. 8 is an explanatory diagram showing a locked state of the operation lock mechanism by the valve operation lever shown in FIG. 7;

FIG. 9 is an explanatory diagram showing an unlocked state of the operation lock mechanism.

FIG. 10 is a sectional view of a main part showing another embodiment (locked state) of the operation lock mechanism of the lighter according to the present invention.

11 (A) is a plan view of an intermediate case used in the present embodiment, FIG. 11 (B) is a longitudinal sectional view thereof, and FIG. 11 (C).
FIG.

12A is a plan view of a valve operating lever used in the present embodiment, FIG. 12B is a longitudinal sectional view of the same, FIG.
(C) is the same front view.

FIG. 13A is a plan view showing a main part of a lighter operation lock mechanism (locked state) according to the present invention, FIG.
(B) is the same longitudinal sectional view.

14 (A) is a plan view showing a main part of the operation lock mechanism (unlocked state), FIG. 14 (B) is a longitudinal sectional view thereof, and FIG. 14 (C) is a longitudinal section during an ignition operation. FIG.

FIG. 15 is an explanatory view of a main part of another embodiment of the lighter operation lock mechanism (locked state) according to the present invention.

FIG. 16 is a plan view of a valve operating lever used in the embodiment.

17A is an end view of the intermediate case, FIG.
(B) is an explanatory view showing a main part of a lock mechanism (locked state).

18A is an explanatory view of a main part showing a locked state of the operation lock mechanism, FIG. 18B is a cross-sectional view of the main part showing the locked state, and FIG. 18C is a view of the operation lock mechanism. FIG. 18 (D) is a sectional view of the main part showing an unlocked state.

FIG. 19 is a perspective view of a windshield used as another embodiment of the operation lock mechanism.

FIG. 20 is a plan view of relevant parts showing the lock mechanism (unlocked state) of the embodiment.

FIG. 21 is an explanatory diagram showing a locked state of the lock mechanism.

FIG. 22 is an explanatory diagram of main parts showing the unlocked state of the lock mechanism.

FIG. 23 is an explanatory view showing another mounting position of the urging member.

FIG. 24 (A) is a perspective view showing a conventional lighter operation lock mechanism, and FIG. 24 (B) is a longitudinal sectional view of the relevant part showing a locked state.

FIG. 25 (A) is a side view of a main part of an operation lock mechanism of a lighter showing another conventional example, and FIG. 25 (B) is a side view of the main part showing an unlocked state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lighter main body 2 Gas tank 3 Tank lid 3a Fitting concave part 3b Through-hole 3c Vertical hole 3d Cavity part 4 Intermediate case 4a Support piece 4b Firing stone support cylinder 4c Shaft hole 4d Engagement convex part 5 Valve 5a Nozzle spiral 5b Nozzle bottom plug 5c Valve chamber 5d Gas ejection nozzle 5e Gas ejection path 5f Valve rubber 5g O-ring 5h Nail-shaped stator 5i Filter 6 File wheel 7 Firing stone 8 Valve operating lever 8a Support shaft 8b Slit 8c Operation piece 8d Projection 8e Through hole 8f Engagement Piece 9 spring 9a spring 10 windshield

Claims (3)

(57) [Scope of request for utility model registration] 1. A file wheel mounted on a top portion of a lighter body via a pair of support pieces, an igniter support cylinder disposed below the file wheel, and an opening at a desired position of the support piece. A valve operating lever having a support shaft swingably supported by a shaft hole and a projecting body projecting from the lower surface, and a gas ejection for ejecting gas by pressing the valve operation lever in a valve opening direction. A nozzle, wherein the valve operation lever abuts a fixed portion of the lighter body at one position to prevent the pressing operation, and abuts the fixed portion at the other position to allow the pressing operation. to put viewed reciprocate freely set <br/> stopper as Rutotomoni, the stopper via a biasing member repellent jaw like
In the operation lock mechanism of the flint type lighter, which is always biased to the pressing operation preventing position, wherein the support piece having a horizontally long support shaft of the valve operation lever is provided.
Slidably fit in the shaft hole of
At this time, the protrusion is engaged with the upper edge of the lighter body.
The urging member is interposed between the starting body and the igniter support cylinder.
When the engagement piece is connected to the valve operating lever,
On the outer peripheral surface of the igniter stone support cylinder corresponding to the engagement piece,
When the valve operation lever is slid toward the windshield, the engagement
Engage with the piece to hold the valve operating lever in the unlocked state.
When the ignition operation is performed, the engagement with the engagement piece is released.
An operation lock mechanism for a flint type lighter, wherein an engagement convex portion is provided . 2. A file wheel attached to the top of the lighter body via a pair of support pieces, a igniter support cylinder disposed below the file wheel, and an opening at a desired position of the support piece. A valve operating lever having a support shaft swingably supported by a shaft hole and a projecting body projecting from the lower surface, and a gas ejection for ejecting gas by pressing the valve operation lever in a valve opening direction. A nozzle, wherein the valve operation lever abuts a fixed portion of the lighter body at one position to prevent the pressing operation, and abuts the fixed portion at the other position to allow the pressing operation. In the operation lock mechanism of the flint type lighter, the stopper is reciprocally movably assembled and the stopper is constantly urged to the pressing operation preventing position via an urging member such as a repellent. Lever support shaft The protrusion and the igniter support tube are fitted so that the protrusion is slidably fitted into the shaft hole of the support piece and the protrusion is always engaged with the upper edge of the lighter body. The urging member is interposed therebetween, and the side of the valve operating lever is provided with the lever.
When sliding to the windshield side, it comes into contact with the inner surface of the support
Protruding engagement piece to hold the lever in unlocked state
And the inner surface of the support piece with which the engagement piece abuts.
When the valve operating lever is operated for ignition, the engaging piece
An operating lock mechanism for a flint type lighter characterized by a series of relief grooves that release contact with the flint lighter. 3. A file wheel attached to the top of the lighter body via a pair of support pieces, a igniter support cylinder disposed below the file wheel, and an opening at a desired position of the support piece. A valve operating lever having a support shaft swingably supported by a shaft hole and a projecting body projecting from the lower surface, and a gas ejection for ejecting gas by pressing the valve operation lever in a valve opening direction. A nozzle, wherein the valve operation lever abuts a fixed portion of the lighter body at one position to prevent the pressing operation, and abuts the fixed portion at the other position to allow the pressing operation. In the operation lock mechanism of the flint type lighter, the stopper is reciprocally movably assembled and the stopper is constantly urged to the pressing operation preventing position via an urging member such as a repellent. Lever support shaft The valve operating lever itself is slidably fitted in the formed shaft hole,
Through the biasing member in a direction away from the windshield at all times.
By urging the protruding body of the valve operating lever,
Also serves as the stopper, and resists the biasing force.
When the valve operation lever is slid to the draft shield side
A small amount of engagement or pressure contact with the outer edge or slit of the bar
An operation lock mechanism for a flint type lighter, wherein at least one protruding piece is provided on an inner wall surface of the windshield .