JPH0596753U - Lighter operation lock mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] It is a simple means that does not impair the appearance of the lighter and does not require a large number of parts. In other words, it is the minimum that eliminates unnecessary parts such as conventional lock levers and slider pieces. It is possible to provide a lighter operation lock mechanism that can easily and reliably prevent ignition by using only the number of parts. [Structure] A support shaft 8a of a valve operating lever 8 is loosely fitted in a horizontally long shaft hole 4b, and the lever 8 is displaceably assembled. Further, preferably, the valve operating lever 8 pushed in the unlocking direction is automatically urged so as to return to the original lock position. More specifically, the operation lever 8 is provided via a biasing member 9a so that the protrusion 8d provided on the lower surface of the valve operation lever 8 is always engaged with the fixed portion of the lighter body 1. Energize. The valve operating lever 8
It is preferable that a holding means is also provided at a desired position of the lighter so that the can be held in an unlocked state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a lighter operation lock mechanism that can prevent the ignition operation of a pressing means such as a valve operation lever mounted on the top of a lighter. More specifically, it does not impair the appearance of the lighter, and the number of parts is small. With a simple and easy means, in other words, a lighter operation lock mechanism that can prevent ignition operation easily and reliably with the minimum number of parts that eliminates unnecessary parts such as lock levers and slider pieces. Exist.

[0002]

[Prior Art]

 Generally, in a gas lighter, a gas ejecting nozzle is operated by pushing down a pressing device such as a valve operating lever to start ejecting gas, and an ignition device is operated to generate a spark to ignite gas. ing. Such gas lighters are roughly classified into a piezoelectric ignition type lighter (so-called piezo lighter) that ignites by spark discharge using a piezoelectric unit that strikes a piezoelectric element with a striking mechanism to generate a high voltage, and a flint is filed. There are file-type lighters (so-called flint-type lighters) that ignite with sparks when rubbing with.

Therefore, in these gas lighters, the valve of the gas ejection nozzle is automatically opened by the pressing operation of the pressing means such as the valve operating lever, and at the same time, a spark is generated and a flame is generated. It is expected that children and others will mischievously operate it because it will be ignited, and it is feared that it may cause accidents such as fire and burns. There have been devised various operation lock mechanisms for gas lighters that also have stoppers that can arbitrarily block the above.

Conventionally, as an operation lock mechanism of such a lighter, for example, as shown in FIG. 24, a gas injection nozzle is operated by pressing a valve operation lever 8 supported on the top of the lighter body 1 in the valve opening direction. In a gas lighter configured to eject gas from the above, a projection body (operation piece leg portion) 8d is integrally provided at a lower portion of an operation piece 8c connected to the free end of the valve operation lever 8, On the upper surface of the lighter main body 1, there is provided a cavity (leg storage chamber) 11 for accommodating the above-mentioned protrusion (operation one leg) 8d when the protrusion 8d descends (see FIG. 24 (B)). A transverse groove 12 is formed in the protrusion (operational leg portion) 8d so as to open downwardly across the protrusion 8d, and a lock lever 13 traverses the upper surface of the lighter main body 1 at one end 13a thereof. Is the above In order to obtain the first state in which it is pushed into the raised body (operation single leg) 8d and the second state in which the other end 13b on the opposite side is pushed into the projection (operation single leg) 8d. The lock lever 13 is slidably accommodated, and on the other end 13b side of the lock lever 13, in the first state, the other end side is between the lower surface of the operation piece 8c and the upper edge portion 1a of the lighter body 1. A lock leg portion 13c having a height that prevents the operation piece 8c from being lowered is provided so that the one end side 13a of the lock lever 13 allows the operation piece 8c to move down in the second state. There was a gas lighter with a legless portion 13d (see Japanese Utility Model Publication No. 3-11564).

Further, as shown in FIG. 25, the gas is configured to eject gas from the gas ejection nozzle by pressing the valve operating lever 8 supported on the top of the lighter body 1 in the valve opening direction. In the lighter, the operating piece 8c of the valve operating lever 8 is provided with a slider piece 14 that can reciprocate toward the windshield 10 side, and is provided on the lower surface of the slider piece 14 so as to project away from the windshield 10. There was a gas lighter provided with a stopper integrally provided with a protrusion 8d which is disengaged from the upper edge portion 1a of the lighter body 1 when it is slid to a position and allows the valve operating lever 8 to descend. (See Japanese Patent 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 13 is unavoidably added and the number of parts increases. In addition to this, it takes a lot of time and labor such that the transverse groove 12 for assembling the lock lever 13 has to be opened in the projection (operating one leg portion) 8d of the operation lever 8. In addition, since the lock lever 13 is exposed to the outside, the aesthetic appearance of the lighter is impaired, and the commercial value is lowered particularly in a high-grade gas lighter. Moreover, in such a lock mechanism, each time the lighter is used, the lock lever 13 must be pulled out with a finger, and the lever 13 must be pushed in after ignition is used. With the fact that such a lock operation cannot be performed only with the hand holding the lighter (one hand), it was difficult to use, and it was not uncommon to forget to lock.

On the other hand, even in the safety device disclosed in Japanese Utility Model Laid-Open No. 63-142563, a separate slider piece 14 must be slidably assembled in the valve operating lever 8. However, there is a problem that it takes time and effort to manufacture and assemble, and because the number of parts also increases, there is a need for a disposable gas lighter (so-called 100-yen lighter) that is inexpensive and has a minimal number of parts. Was unresponsive. Furthermore, in such a safety device, for example, when the lighter is put in a pocket or the like, the fingertip of the hand casually put in the pocket touches the slider piece 14 and slides it in the releasing direction. However, there was a problem that the lock was released easily and unexpectedly.

In addition, 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 is provided. The existing lighter parts could not be utilized. Furthermore, these conventional locking mechanisms require extra parts and assembly man-hours, such as separate lock levers and slide pieces, and there is still room for reduction of parts.

The present invention has been made in view of such conventional problems, and it is a simple means that does not impair the appearance of the lighter and does not require a large number of parts. In other words, a lock lever or a conventional lock lever is used. The purpose is to provide a lighter operation lock mechanism that can easily and reliably prevent ignition with a minimum number of parts that eliminates unnecessary parts such as slider pieces. The lock can be released with just one thumb, and after ignition (more specifically, when the thumb leaves the valve control lever), the lock can be automatically returned to the locked state. The main purpose is to provide a product locking mechanism to consumers at a low cost to meet the needs of so-called 100-yen lighters (while still utilizing existing lighter parts as they are). It was devised as a purpose.

[0010]

[Means for Solving the Problems]

 In order to solve the above-mentioned conventional problems and achieve the intended purpose, the configuration which is the gist of the present invention is a valve operating lever mounted on the top of the lighter body or a valve pressing means such as an ignition operator. In a lighter configured to eject gas from a gas ejection nozzle by performing a pressing operation in the opening direction, the pressing means abuts a fixed portion of the lighter main body at one position to prevent the pressing operation. In the lighter operation locking mechanism, the pressing means is displaceably assembled so as to allow the pressing operation by being disengaged from the fixed portion at the other position, and by extension, the pressing means. However, at one position, the protrusion protruding from the lower surface comes into contact with the upper edge of the lighter body to prevent the pressing operation, and at the other position, the contact with the upper edge is released. To allow the depression of the pressing operation The horizontal direction consists in operating the lock mechanism of the lighter consisting reciprocate freely assembled valve control lever.

Further, it is preferable that the pressing means is always biased so as to be brought into contact with and engaged with the fixed portion of the lighter body.

For example, a file wheel mounted on the top of the lighter body via a pair of support pieces, a flint support cylinder disposed under the file wheel, and a support piece opened at a desired position on the support piece. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and a gas for ejecting gas by pressing the valve operating lever in the valve opening direction. In a flint type lighter including a jet nozzle, a spindle of the valve operating lever is slidably fitted into the laterally formed shaft hole, and the protrusion is always above the lighter body. An urging member such as a repellant is interposed between the protrusion and the pyrophoric stone support cylinder so as to engage with the edge portion, and an engaging piece is continuously provided on the surface of the valve operation lever. , The outside of the pyrophoric support tube corresponding to the engaging piece When the valve operating lever is slid horizontally on the windshield side, it engages with the engaging piece to hold the operating lever in an unlocked state, and when the ignition operation is performed, the engagement is performed. It is preferable to provide an engaging convex portion for releasing the engagement with the piece.

Further, a file wheel mounted on the top of the lighter body via a pair of support pieces, a flint support cylinder arranged under the file wheel, and an opening at a desired position of the support piece. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and gas is ejected by pressing the valve operating lever in the valve opening direction. In a flint type lighter provided with a gas ejection nozzle, a spindle of the valve operating lever is slidably fitted in the laterally formed shaft hole, and the projection is always provided on the lighter body. An urging member such as a repellent is interposed between the protrusion and the pyrophoric stone support cylinder so as to engage with the upper edge portion, and the lever is provided on the side of the valve operation lever on the windshield side. When it is slid horizontally to the inner surface of the support piece An engaging piece that abuts and holds the lever in an unlocked state is provided in a protruding manner, and when the valve operating lever is ignited on the inner surface of the supporting piece with which the engaging piece abuts, the engaging piece is engaged. A relief groove for releasing the contact with the joint piece may be provided in series.

Further, instead of the engaging convex portion or the engaging piece, a holding means for holding the valve operating lever, which is slid toward the windshield side against the urging force of the urging member, in an unlocked state. You may provide in the said windshield. Further, it is preferable that the holding means is formed by at least one or more protrusions cut into the inner wall surface of the windshield so as to engage with or press contact with the outer edge or slit of the valve operating lever.

[0015]

[Action]

 The operation lock mechanism of the lighter of the present invention configured as described above is configured so that the pressing means such as the valve operation lever and the ignition operator mounted on the top of the lighter main body is operated by pressing in the valve opening direction from the gas ejection nozzle. In a writer configured to eject gas, the pressing means abuts on the fixed portion of the lighter body at one position to prevent the pressing operation, and the abutment with the fixed portion at the other position. The pressing means is mounted so as to be displaceable so as to allow the pressing operation by being disengaged, and in particular, the pressing means is located at one position, and a protrusion projecting on the lower surface has an upper edge of the lighter body. A valve operation that is reciprocally movable in the horizontal direction so as to prevent the pressing operation by coming into contact with a portion and disengage the contact with the upper edge at the other position to allow the pressing operation to descend. Consisting of a lever Therefore, from the appearance of the lighter will be disengaged operation is performed locking mechanism without being Kant, also, it does not damage the appearance of mischief to lighter.

Furthermore, if the pressing means is constantly biased so as to abut and engage with the fixed portion of the lighter body, the pressing means is slid in the releasing direction with a finger against the biasing force. Unless the lighter is moved, the lighter cannot be ignited, and when the finger sliding in the releasing direction is released, the pressing means is automatically returned to the original locked state while being raised.

In particular, since the valve operating lever itself (specifically, the protrusion 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 conventional case, and the number of parts can be reduced. There is no compelling increase.

Further, a file wheel mounted on the top of the lighter body via a pair of support pieces, a pyrophoric stone support cylinder arranged under the file wheel, and an opening at a desired position of the support piece. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and a gas for ejecting gas by pressing the valve operating lever in the valve opening direction. In a flint type lighter equipped with a jet nozzle, a spindle of the valve operating lever is slidably fitted into the laterally formed shaft hole, and the projection is always above the lighter body. An urging member such as a repellant is interposed between the protrusion and the above-mentioned pyrophoric stone support cylinder so as to engage with the edge portion, and an engagement piece is continuously provided on the surface of the valve operation lever. Together with the outer circumference of the flint support cylinder corresponding to the engaging piece. When the valve operation lever is horizontally slid to the windshield side, the engagement piece is engaged with the surface to hold the operation lever in an unlocked state, and when the ignition operation is performed, the engagement piece By providing the engaging convex portion for releasing the engagement with the engaging lever, the engaging piece is temporarily engaged with the engaging convex portion when the valve operating lever is slid in the releasing direction by the thumb. Therefore, the valve operating lever is held in the unlocked state, and the engagement between the engaging piece and the engaging convex portion is released only when the push ignition operation of the valve operating lever is performed next. As soon as the thumb separates from the valve operating lever after ignition, the lever will return to the original locked state automatically while returning horizontally as the gas jet nozzle descends.

Moreover, the engaging protrusion is provided on the outer peripheral surface of the pyrotechnic support cylinder, and the surface of the valve operating lever corresponding to the engaging protrusion is located on the surface (specifically, inside the lever central opening). Effective use of the dead space can be achieved by projecting the engaging piece and interposing an urging member such as a spring between the igniter support cylinder and the protrusion provided on the lower surface of the valve operating lever. In this case, the lock mechanism is bulky, the shape of the entire lighter is not complicated, and the appearance is not spoiled by mischief.

Further, a file wheel mounted on the top of the lighter body through a pair of support pieces, a flint support cylinder arranged under the file wheel, and an opening at a desired position of the support piece. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and gas is ejected by pressing the valve operating lever in the valve opening direction. In a flint type lighter provided with a gas ejection nozzle, a spindle of the valve operating lever is slidably fitted in the laterally formed shaft hole, and the projection is always provided on the lighter body. An urging member such as a repellent is interposed between the protrusion and the pyrophoric stone support cylinder so as to engage with the upper edge portion, and the lever is provided on the side of the valve operation lever on the windshield side. When it is slid horizontally to the inner surface of the support piece An engaging piece that abuts and holds the lever in an unlocked state is provided in a protruding manner, and when the valve operating lever is ignited on the inner surface of the supporting piece with which the engaging piece abuts, the engaging piece is engaged. By arranging the relief grooves to release the contact with the joint piece, when the valve operating lever is horizontally slid in the releasing direction with the thumb, the engaging piece once contacts the inner wall surface of the supporting piece. When the valve operating lever is held in the unlocked state by being brought into contact with the valve operating lever and then the ignition operation of the valve operating lever is performed, the engaging piece falls into the escape groove and the supporting piece (specifically The engagement with the side surface) is released. Therefore, similar to the above, at the same time as the thumb is separated 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, instead of the engaging convex portion or the engaging piece, a holding means for holding the valve operating lever slid toward the windshield against the biasing force of the biasing member in an unlocked state. If it is provided on the windshield, it is possible to carry out a simpler assembly without changing the mold, in other words, by utilizing the existing lighter parts as they are. For example, by making at least one notch in the windshield and cutting the protrusion inward (inner wall surface side), the outer edge of the valve operating lever that is slid to the windshield against the biasing force. Alternatively, the holding means that can be engaged with or pressed against the slit can be easily formed.

[0022]

【Example】

 Next, an embodiment of a lighter operation lock mechanism (basic idea) according to the present invention will be described with reference to FIGS. 1 to 9. In the figure, A is a gas lighter equipped with an operation lock mechanism according to the present invention. As shown in FIG. 3, this gas lighter A is airtightly integrated above a gas tank 2 formed in a lighter body 1. The tank top lid 3 is provided. 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. An ignition mechanism, which will be described later, is mounted on the tank upper lid 3 via an intermediate case 4.

As shown in FIGS. 3 to 4, a bottomed cylindrical fitting recess 3a having an open top is integrally formed in the tank upper cover 3, and the bottom center of the fitting recess 3a is formed. A through hole 3b communicating with the gas tank 2 is opened. Then, the valve 5 is press-fitted into the fitting recess 3a.

The valve 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 valve chamber 5c is formed in the valve chamber 5c, and a gas jet nozzle 5d is installed in the valve chamber 5c through an O-ring and a spring so that the upper end of the gas jet nozzle 5d projects outward from the opening of the nozzle spiral 5a. ing.

The gas ejection nozzle 5d is provided with a hole (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 in a closed state at the lower end. The combined valve rubber 5f is projected, and by operating the tip neck of the gas ejection nozzle 5d in the pull-out direction via a valve operating lever 9 described later, the lower end surface of the valve rubber 5f is moved. It is assembled so as to perform the opening / closing operation of the valve port described later.

Further, an O-ring 5g is fitted to the outer peripheral surface of the nozzle bottom plug body 5b via an annular groove, so that the O-ring 5g shields the inner peripheral surface of the fitting concave portion 3a which contacts the outside. .. Furthermore, a valve port (not shown) is opened on the bottom surface of the nozzle bottom plug 5b, and a nail-shaped stator 5h is fitted to the valve port and protrudes. 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, as shown in FIGS. 3 to 4, the ignition mechanism of the gas lighter A is rotated via a pair of support pieces 4a, 4a (see FIG. 2) integrally formed with the intermediate case 4. It is composed of a file wheel 6 which is freely supported, a flint 7 mounted under the file wheel 6, and a valve operating lever (pressing means) 8 for operating the gas jet nozzle 5d in the pull-out direction. There is. The igneous stone 7 is housed in the igneous stone supporting 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 the pushing spring 9. Has been.

As shown in FIG. 5, the valve operating lever 8 is provided with support shafts 8a, 8a protruding from both side surfaces at the center in the longitudinal direction. The support shafts 8a, 8a are connected to the pair of support pieces 4a. , 4a (see FIGS. 1 and 2), the shaft holes 4b and 4b are formed in the shaft holes 4a and 4a, respectively, so that the shafts are pivotally supported in the vertical direction. Moreover, the shaft holes 4b, 4b are formed in a horizontally long elliptical shape as shown in the figure, and the inner peripheral surface of the shaft holes 4b, 4b is projected so as to press-contact with the support shaft 8a of the operating lever 8. The diameter portion 4c is continuously provided (see FIGS. 1 and 2). Therefore, by pushing the valve operation lever 8 toward the windshield side or pulling it back against the pressure contact force (friction force) between the reduced diameter portion 4c and the support shaft 8a, the valve operation is performed. The lever 8 is displaced in a horizontal direction so as to be reciprocally movable. Incidentally, 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 the slit 8b described later.

The neck portion of the gas ejection nozzle 5d is fitted to one end of the valve operating lever 8 through a slit 8b (see FIG. 3) communicating with the outer peripheral edge of the valve operating lever 8. By depressing the operation piece 8c continuously provided at the end, the valve operation lever 8 swings up and down around the support shafts 8a, 8a to move the neck portion of the gas ejection nozzle 5d in the withdrawal direction. It is a thing.

Further, a downward protruding body 8d is integrally provided at a lower portion of the operation piece 8c so as to be inserted into and removed from a hollow cylindrical cavity 3d formed on the upper surface of the lighter body 1. It is molded, and when the valve operating lever 8 is slid in the direction away from the windshield 10 (see FIG. 3), the protrusion 8d abuts on the upper edge 1a of the lighter body 1 to operate the valve. An operation lock mechanism for the lighter that prevents the valve operating lever 8 from descending by stopping the lever 8 from falling (locked state) and pushing it back to a fixed position (see FIG. 4). Is composed of. The valve operating lever 8 does not stick out from the lighter body 1 outward, and the valve operating lever 8 once slid in the locking direction is the same as the reduced diameter portion 4c of the shaft hole 4b. Unless the lever 8 is slid in the releasing direction with a finger against the pressure contact force (friction force) with the support shaft 8a, the lighter cannot be ignited, so an unexpected and easy ignition operation is surely performed. It is blocked by.

When not in use, the operation lock mechanism of the gas lighter of the present invention configured as above is slid in a direction away from the windshield 10 side when the valve operation lever 8 is not in use, so that the projection 8d under the lever 8 is slid. Is held in a locked state where it is locked to the upper edge 1a of the lighter body 1 to prevent the ignition operation (see FIG. 3), and the thumb of the hand holding the lighter body 1 is used. If the valve operating lever 8 is pushed and slid to the windshield side against the pressure contact force (friction force) between the reduced diameter portion 4c of the shaft holes 4b and 4b and the support shaft 8a, it is shown in FIG. Thus, the projection 8d is disengaged from the upper edge portion 1a, and the valve operating lever 8 can be pushed downward (unlocked state). Then, by performing a conventional ignition operation, that is, by rotating the file wheel 6 with the thumb of the hand holding the lighter body 1 and pushing down the operation piece 8c of the valve operation lever 8 as it is, The igniter stone 7 is rubbed to generate a spark on the gas ejection nozzle 5d side, and the neck of the gas ejection nozzle 5d is moved in the pulling direction, so that the lower end surface of the valve rubber 5f is separated from the upper surface of the valve opening. The valve opens, and the liquefied gas in the gas tank 2 is sucked up to the nail-shaped stator 5h and reaches the filter 5i via the peripheral surface of the stator 5h to be vaporized. Further, the vaporized gas passes through the filter 5i, passes through the gap between the nail-shaped stator 5h and the valve opening of the nozzle bottom plug 5b, and is further bored in the radial direction of the gas ejection nozzle 5d (not shown). ) To reach the inside of the gas ejection passage 5e and is ejected from the tip of the gas ejection nozzle 5d to the outside. At that moment, the spark ignites and ignites to reveal a flame of a desired length.

In this embodiment, the valve operating lever 8 is slid in the direction away from the windshield 10 to bring it into the locked state, but the invention is not limited to this, and as shown in FIG. Then, by pushing the valve operating lever 8 toward the windshield 10 and sliding it, the protrusion 8d ₁ is brought into contact with the upper edge 1a ₁ of the lighter body 1 to prevent the valve operating lever 8 from being lowered. May be.

Next, an embodiment of the operation lock mechanism (second invention) according to the present invention will be described with reference to FIGS. 10 to 15. The same parts as those of the embodiment of the first invention are designated by the same reference numerals, and the different parts will be described below. FIG. 10 is an explanatory view showing a main part (locked state) of a lighter equipped with an operation lock mechanism of the lighter according to the present invention, in which the valve operating lever 8 pushed to the windshield automatically locks the base position. In other words, the protrusion 8d protrudingly provided on the lower surface of the valve operating lever 8 is always provided with a biasing member 9a so as to be engaged with the upper edge of the lighter body 1. The operation lever 8 is urged via this.

The urging member 9a is interposed between the front end side and the outer peripheral surface of the igniter support cylinder 4D described above, and the rear end side between the two members so as to abut inside the protrusion 8d. 8d constantly contacts the upper edge 1a of the lighter body 1 to prevent the valve operating lever 8 from descending (see FIGS. 10 and 13 (B)), and the lever 8 is resisted against the urging force. By pushing back to the windshield side, the contact with the upper edge 1a is released (see FIG. 14 (B)) and the descent of the valve operating lever 8 is allowed (see FIG. 14 (C)). Is composed of.

Further, as shown in FIG. 12, engaging pieces 8f, 8f are provided in a protruding manner in the center opening of the valve operating lever 8. The engagement pieces 8f, 8f are provided on the outer peripheral surface of the igniter support cylinder 4b when the valve operating lever 8 is horizontally moved to the windshield side against the urging force of the urging member 9a. It engages with the engaging protrusions 4d, 4d (see FIGS. 11A and 11C), so that the engagement with the protrusions 4d, 4d can be released by the ignition operation of the valve operating lever 8. It is projected.

Therefore, as shown in FIGS. 10 and 13, the operation lock mechanism of the gas lighter according to the present invention having the above-described structure is operated by a finger on the valve operation lever 8 which is always held in the locked state. If it is slid in the releasing direction, the engagement pieces 8f, 8f are engaged with the engagement protrusions 4d, 4d, and the valve operating lever 8 is once held in the unlocked state (Fig. 14 (A) and (B)), and then, when the push-in operation of the valve operating lever 8 is performed (see FIG. 14 (C)), the engaging pieces 8f, 8f and the engaging convex portion 4d are not provided for the first time. , 4d are released, the valve operating lever 8 returns to the original position as the gas ejecting nozzle 5d descends at the moment when the thumb leaves the valve operating lever 8 after the ignition operation. It automatically returns to the locked state of the The easy ignition operation (erroneous ignition) is surely prevented.

Further, if the free end side of the biasing member 9a (the side in contact with the igniter support cylinder 4D) is made free (abut in a displaceable state) without being fixed, the valve operating lever 8 will move. Even if it moves up and down, it can always be disposed so as to be orthogonal to the outer wall surface of the pyrophoric stone support cylinder 4D. In addition, since the biasing member 9a is attached to the side surface of the projection 8d on the side of the windshield through the notch or the through hole 8e, the temporary operation is performed so that the valve operating lever 8 is pressed to swing in the vertical direction. However, the biasing member 9a does not easily come off.

Next, an embodiment of an operation lock mechanism (third invention) according to the present invention will be described with reference to FIGS. 15 to 18. The parts common to the first and second embodiments are designated by the same reference numerals, and the different parts will be described below. FIG. 15 is an explanatory view showing a main part (locked state) of a lighter equipped with an operation lock mechanism for a lighter according to the present invention, in which a horizontally long shaft hole 4b into which the valve operation lever 8 is loosely fitted is substantially formed. The shape is bent.

As shown in FIG. 16, engagement pieces 8f, 8f, which are separate from the support shafts 8a, 8a, are provided on both side surfaces of the valve operating lever 8 so as to project. The engagement pieces 8f, 8f are the inner side surfaces of the support pieces 4a, 4a connected to the intermediate case 4 when the lever 8 is horizontally slid to the windshield side (details will be described later in detail). The valve operating lever 8 is held in an unlocked state by making contact with the reduced diameter portion of the groove).

Further, escape grooves 4f, 4f are continuously provided on the inner side surfaces of the support pieces 4a, 4a. As shown in FIG. 17 (A), the escape grooves 4f, 4f are provided with a reduced diameter portion and a large diameter portion, and when the valve operating lever 8 is slid horizontally to the windshield side, the engagement The coupling pieces 8f, 8f are pressed against the reduced diameter portion of the upper half portion to hold the lever 8 in the unlocked state (see FIGS. 18 (A) and 18 (B)), and when the ignition operation is performed, the engaging pieces are 8f, 8f are recessed so as to fall into the large diameter portion corresponding to the lower half portion and release the contact with the reduced diameter portion (see FIGS. 18C and 18D).

In the operation lock mechanism of the present invention configured as above, when the valve operation lever 8 is horizontally slid in the releasing direction with the thumb, the engaging pieces 8f, 8f are temporarily moved to the supporting piece 4a. , 4a are brought into contact with the inner wall surface (specifically, the reduced diameter portion of the escape groove 4f) to hold the valve operating lever in an unlocked state, and then the ignition operation of the valve operating lever 8 is performed. Since the engaging pieces 8f, 8f fall into the escape groove 4f (specifically, the large diameter portion of the escape groove 4f) to release the abutting engagement with the inner side surfaces of the supporting pieces 4a, 4a, Upon being separated from the valve operating lever 8, the operating lever 8 automatically returns to the original locked state through the urging force of the urging member 9a, and the above-mentioned engaging convex portion 4d is unnecessary. Therefore, the lock machine has a simpler configuration than the embodiment of the second invention. The structure can be provided.

Next, an embodiment of an operation lock mechanism (fourth device) according to the present invention will be described with reference to FIGS. 19 to 22. The parts common to the embodiments of the first, second and third inventions are designated by the same reference numerals, and the different parts will be described below. FIG. 19 is a perspective view of a windshield attached to a lighter according to the present invention. The windshield has a flame hole 10a having a radial slit connected to the top surface thereof and projecting pieces 10b, 10b protruding inward. (Holding means).

The protrusions 10b, 10b are formed by making a notch of a desired size in the front wall of the windshield 10 and bending the cutout inward (inner wall surface side of the windshield). The free end (tip) is bent inward so that the tip side of the valve operating lever 8 horizontally slid to the windshield side can be engaged and held against the urging force of the urging member 9a (FIG. 20). reference). Further, it is preferable that recesses are provided on both side edges of the valve operating lever 8 so that the tips of the projecting pieces 10b, 10b are securely engaged with each other.

In the operation lock mechanism of the present invention constructed as described above, the valve operation lever 8 is horizontally slid toward the windshield side in the releasing direction with the thumb against the urging force of the urging member 9a. For example, as shown in FIG. 22, the tip 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), and then the valve operating When the lever 8 is ignited, the tip of the valve operating lever 8 is disengaged from the protrusions 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 urging force of the urging member 9a (see FIGS. 20 to 21), and the engaging convex portion 4d and the engaging portion. The second and third parts are eliminated because the joint piece 8f is unnecessary. The lock mechanism can be provided with a simpler structure than the embodiment of the invention. Also, above all, it has an advantage that existing lighter parts can be used as they are.

In the present embodiment, the protrusions 10b, 10b are formed so that the both side edges of the valve operating lever 8 can be engaged, but the present invention is not limited to this, and the same. The protrusion 10b may be provided so as to be press-fitted into the slit 8b of the valve operating lever 8. Further, the positions and the number of the protruding pieces 10b are not limited to those in this embodiment, and it goes without saying that the protruding pieces 10b can be formed by cutting from the side surface of the windshield 10.

As described above, the lock mechanism (basic device) and the basic device which can make the ignition operation possible or impossible by displacing (horizontal sliding) the conventional valve operating lever mounted on the lighter. Although the invention has been described with reference to the embodiments, the lighter operation locking mechanism of the invention is not limited to these embodiments and can be freely designed and modified within the scope of the purpose of the invention. Therefore, the present invention includes all of these. For example, in this embodiment, the urging member 9a is interposed between the rear end outer peripheral surface of the igniter support cylinder 4D and the projection 8d of the valve operating lever 8, but the valve operating lever 8 is locked. It may be arranged anywhere as long as it can be biased in the direction. Incidentally, as shown in FIG. 21, between the inner wall surface of the windshield 10 and the front end of the valve operating lever 8, or between the front end of the igniter support cylinder 4D and the front half of the center opening of the valve operating lever 8 (see FIG. If it is arranged (not shown), even the biasing member 9a can be mounted so that it cannot be perceived from the outside. Further, although the flint type lighter is described in the present embodiment, the present invention is not limited to this, and it goes without saying that the present invention can be applied to a piezo lighter having an ignition operator that slides in the vertical direction. Nor.

The “upper edge of the lighter body” referred to in the present specification refers to not only the lighter body but also the “upper edge of the upper lid” or the “upper edge of the intermediate case” corresponding to the top surface of the lighter body. “Part” further includes “the upper edge portion of the outer case”, and includes all the upper edge portions facing the lower surface of the valve operating lever 8.

[0048]

[Effect of the device]

 The present invention is configured as described above, and gas is ejected from the gas ejection nozzle by pressing the valve operating lever or the ignition device or other pressing means mounted on the top of the lighter body in the valve opening direction. In the lighter configured as described above, the pressing means abuts on the fixed part of the lighter body at one position to prevent the pressing operation, and the abutment with the fixed part is released at the other position to perform the pressing operation. The pressing means is displaceably assembled so that the pressing means is allowed to move, and in particular, the pressing means is located at one position so that the projection protruding from the lower surface comes into contact with the upper edge of the lighter body. By a valve operation lever that is assembled so as to reciprocate in the horizontal direction so as to prevent the pressing operation and allow the lowering of the pressing operation to be released from the contact with the upper edge portion at the other position, The valve operation It is possible to make the ignition operation possible or not possible by horizontal sliding operation of the pressing means such as a key, and the lock mechanism is not touched from the appearance of the lighter, so that the engagement operation can be performed. Even if you glance at such a lighter (specifically, a pressing means such as a valve operation lever), you cannot expect that it will also serve as a stopper, and you can attach it to the lighter without the child being aware of the lock mechanism. In addition to the effect, the original design of the lighter can be used as it is, and the appearance of the lighter is not spoiled by mischief.

Furthermore, if the pressing means is constantly urged to abut and engage with the fixed portion of the lighter body, the pressing means is slid in the releasing direction with a finger against the urging force. The lighter cannot be ignited unless it is moved, and the pressing means itself automatically returns to the original locked state when the finger sliding in the releasing direction is released. Not only can it be released and forgotten to be locked, but since the pressing means itself such as the valve operating lever is also used as a sliding stopper, it is necessary to add a separate lock lever or slider piece as in the past. In addition, the effect of not increasing the number of parts other than the repellent force is exerted, and since the lock mechanism is simply configured by just assembling the normal parts, the lock that required a lot of labor in the past. Component part This eliminates the need for assembly work.

In particular, a file wheel mounted on the top of the lighter body via a pair of support pieces, a flint support cylinder arranged under the file wheel, and a support piece opened at a desired position on the support piece. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and a gas for ejecting gas by pressing the valve operating lever in the valve opening direction. In a flint type lighter equipped with a jet nozzle, a spindle of the valve operating lever is slidably fitted into the laterally formed shaft hole, and the above-mentioned projection is always above the lighter body. An urging member such as a repellant is interposed between the protrusion and the above-mentioned pyrophoric stone support cylinder so as to engage with the edge portion, and an engagement piece is continuously provided on the surface of the valve operation lever. Together with the outer circumference of the flint support cylinder corresponding to the engaging piece. When the valve operation lever is horizontally slid to the windshield side, the engagement piece is engaged with the surface to hold the operation lever in an unlocked state, and when the ignition operation is performed, the engagement piece By providing the engaging convex portion for releasing the engagement with the, the engaging piece is temporarily engaged with the engaging convex portion when the valve operating lever is slid in the releasing direction by the thumb. Hold the valve operating lever in an unlocked state, and then the push-ignition operation of the valve operating lever releases the engagement between the engaging piece and the engaging convex portion for the first time. During the ignition operation, especially when turning the file wheel (more specifically, at the moment when the thumb is put on the file wheel), even if the thumb is separated from the valve operating lever, the valve is operated immediately. You can eliminate the inconvenience that the lever returns to the locked state, and after that (after use) It is those that can provide the operation lock mechanism useful writer would go back to be sure the valve operation lever is automatically original locked state.

In addition, the engaging protrusion is provided on the outer peripheral surface of the igneous stone support cylinder connected to the intermediate case, and the surface of the valve operating lever corresponding to the engaging protrusion (more specifically, the same). If the engaging piece is projected in the central opening of the lever and a biasing 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. , The dead space can be effectively used, and the lock mechanism is not bulky, the shape of the entire lighter is complicated, and the appearance is not spoiled by mischief.

Further, a file wheel mounted on the top of the lighter body through a pair of support pieces, a flint support cylinder arranged under the file wheel, and an opening at a desired position of the support piece. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and gas is ejected by pressing the valve operating lever in the valve opening direction. In a flint type lighter provided with a gas ejection nozzle, a spindle of the valve operating lever is slidably fitted in the laterally formed shaft hole, and the projection is always provided on the lighter body. An urging member such as a repellent is interposed between the protrusion and the pyrophoric stone support cylinder so as to engage with the upper edge portion, and the lever is provided on the side of the valve operation lever on the windshield side. When it is slid horizontally to the inner surface of the support piece An engaging piece that abuts and holds the lever in an unlocked state is provided in a protruding manner, and when the valve operating lever is ignited on the inner surface of the supporting piece with which the engaging piece abuts, the engaging piece is engaged. By arranging the relief grooves to release the contact with the joint piece, when the valve operating lever is horizontally slid in the releasing direction with the thumb, the engaging piece once contacts the inner wall surface of the supporting piece. When the valve operating lever is brought into contact with the valve operating lever in an unlocked state, and then the valve operating lever is ignited, the engaging piece falls into the relief groove and the supporting piece (specifically, the inner surface). Therefore, it is possible to provide a lighter operation lock mechanism that can easily and unexpectedly release the lock and eliminate forgetting to lock with a simpler configuration that does not require the above-mentioned engagement protrusion. ..

Further, instead of the engaging projection or the engaging piece, a holding means for holding the valve operating lever, which is slid toward the windshield side against the biasing force of the biasing member, in an unlocked state, In particular, if at least one projecting piece cut into the inner wall surface of the windshield so as to engage 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 they are. , It is possible to provide a lighter operation lock mechanism that can be assembled more easily.

As described above, the operation lock mechanism of the lighter according to the present invention does not impair the appearance of the lighter, and has the minimum number of parts without the extra parts such as the lock lever and the slider piece as in the past. It is a simple and reliable way to prevent ignition (by adding one repellant), and in addition, the locked state can be easily released with only one hand (with one thumb), and after ignition is used. It is possible to provide an operation lock mechanism for a lighter that can automatically return to the locked state and is easy to use and operate. In addition, the simple configuration makes it suitable for mass production, and can be supplied to users at a low price. The practical value of implementing the present invention is extremely large, and the disposable lighter is more layered. It has become possible to meet the needs.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a main part of an operation lock mechanism (locked state) of a lighter 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 cross-sectional view of a main part showing a locked state of the operation lock mechanism.

FIG. 4 is a longitudinal cross-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 this embodiment.

FIG. 6 is a vertical sectional view of a lighter used in this embodiment.

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

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

FIG. 9 is an explanatory diagram showing a non-locked state of the operation lock mechanism.

FIG. 10 is a cross-sectional view of essential parts 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 this embodiment, FIG. 11 (B) is a longitudinal sectional view of the same, and FIG. 11 (C).
FIG.

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

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

FIG. 14 (A) is a plan view showing a main part of the operation lock mechanism (unlocked state), FIG. 14 (B) is a vertical cross-sectional view, and FIG. 14 (C) is the same vertical section at the time of ignition operation. It is a side view.

FIG. 15 is a main part explanatory view showing another embodiment of the operation lock mechanism (locked state) of the lighter 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).

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

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

FIG. 20 is a main-portion plan view showing the lock mechanism (unlocked state) of the embodiment.

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

FIG. 22 is an essential part explanatory view showing the unlocked state of the lock mechanism.

FIG. 23 is an explanatory diagram showing another attachment position of the biasing member.

FIG. 24 (A) is a perspective view showing a conventional operation lock mechanism of a lighter, and FIG. 24 (B) is a longitudinal sectional view of the same essential 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 in an unlocked state.

[Explanation of symbols]

 1 Lighter Main Body 2 Gas Tank 3 Tank Top Lid 3a Fitting Recess 3b Through Hole 3c Vertical Hole 3d Cavity 4 Intermediate Case 4a Supporting Piece 4b Firestone Supporting Tube 4c Shaft Hole 4d Engagement Convex 5 Valve 5a Nozzle Spiral 5b Nozzle Bottom Plug 5c Valve chamber 5d Gas ejection nozzle 5e Gas ejection passage 5f Valve rubber 5g O-ring 5h Nail-shaped stator 5i Filter 6 File wheel 7 Firestone 8 Valve operating lever 8a Spindle 8b Slit 8c Operating piece 8d Projection body 8e Through hole 8f Engagement Piece 9 Spring 9a Spring 10 Windshield

Claims (7)

[Scope of utility model registration request] 1. A lighter configured to eject gas from a gas ejection nozzle by pressing a pressing means such as a valve operating lever or an ignition operator mounted on the top of a lighter body in a valve opening direction, At one position, the pressing means comes into contact with the fixed part of the lighter body to prevent the pressing operation, and at the other position, the pressing means is released from the contact with the fixed part to allow the pressing operation. The operation lock mechanism of the lighter, which is characterized by being assembled so that it can be displaced. 2. The pressing means prevents the pressing operation by contacting an upper edge portion of the lighter body with a protrusion protruding from the lower surface at one position, and at the other position to the upper edge portion. 2. The operation lock mechanism for a lighter according to claim 1, wherein the valve operation lever is assembled so as to be reciprocally movable in a horizontal direction so as to allow the depression of the pressing operation to be released and to allow the pressing operation to descend. 3. The operation lock mechanism for a lighter according to claim 1, wherein the pressing means is constantly biased so as to abut and engage with the fixed portion of the lighter body. 4. A file wheel mounted on the top of the lighter body via a pair of support pieces, a flint support cylinder arranged under the file wheel, and a support piece opened at a desired position. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and a gas ejector for ejecting gas by pressing the valve operating lever in the valve opening direction. In a flint type lighter including a nozzle, a spindle of the valve operating lever is slidably fitted in the laterally formed shaft hole, and the projection is always provided on the upper edge portion of the lighter body. A biasing member such as a repellant is interposed between the protrusion and the pyrotechnic stone support cylinder so as to engage with, and an engaging piece is continuously provided on the surface of the valve operating lever and On the outer peripheral surface of the igneous stone support cylinder corresponding to the chip, the valve When the operation lever is slid horizontally to the windshield side, it engages with the engagement piece to hold the operation lever in the unlocked state, and when the ignition operation is performed, the engagement with the engagement piece is performed. An operation lock mechanism for a lighter, which is provided with an engaging convex portion for releasing the lighter. 5. A file wheel mounted on the top of the lighter body through a pair of support pieces, a flint support cylinder arranged under the file wheel, and a support piece opened at a desired position. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and a gas ejector for ejecting gas by pressing the valve operating lever in the valve opening direction. In a flint type lighter including a nozzle, a spindle of the valve operating lever is slidably fitted in the laterally formed shaft hole, and the projection is always provided on the upper edge portion of the lighter body. An urging member such as a repellant is interposed between the protrusion and the flint support cylinder so that the lever is horizontally slid on the side of the valve operation lever toward the windshield. When this is done, it contacts the inner surface of the support piece and An engaging piece for holding the locking piece in an unlocked state is projected, and the inner surface of the supporting piece with which the engaging piece abuts is in contact with the engaging piece when the valve operating lever is ignited. A lighter operation lock mechanism characterized by a series of escape grooves that release the contact. 6. A file wheel mounted on the top of the lighter body via a pair of support pieces, a flint support cylinder arranged under the file wheel, and a support piece opened at a desired position. A valve operating lever in which a support shaft swingably supported in a shaft hole and a protrusion protruding from the lower surface are connected, and a gas ejector for ejecting gas by pressing the valve operating lever in the valve opening direction. In a flint type lighter including a nozzle, a spindle of the valve operating lever is slidably fitted in the laterally formed shaft hole, and the protrusion is always fixed to a fixing portion of the lighter body. A holding means for biasing the valve operating lever via a biasing member such as a repellant member so that the valve operating lever is slid toward the windshield side against the biasing force in an unlocked state. Of a lighter characterized by being installed in the windshield Create lock mechanism. 7. The holding means comprises at least one or more protrusions cut into the inner wall surface of the windshield so as to engage with or press contact with the outer edge or slit of the valve operating lever. The operation lock mechanism of the lighter according to item 6.