JP3160552U - Cigarette lighter with child resistance - Google Patents

Abstract

A child resistance cigarette lighter having easy operation, low cost, and effective or high safety function is provided. A shield, a bracket, a spark wheel, a flint, a flint spring, two side wheels, a gas tank, a tank cover, a nozzle, a flame regulator, a gas release lever, and a gas valve. It has. The outer diameter of the side wheel 6 is substantially equal to the outer diameter of the spark wheel 3. The outer surface of the side wheel 6 is smooth. With this configuration, a cigarette lighter that can prevent an unexpected operation or an operation by a child is formed. [Selection] Figure 1

Description

  The present invention relates to a cigarette lighter having child resistance (hereinafter referred to as CR).

  A liquefied petroleum gas (LPG) lighter is a common ignition device. Many countries, such as the United States, Canada, Australia and European countries, are sold on the market to prevent children, especially children under the age of 5, from accidentally using a lighter to accidentally cause a fire. Regards that all lighter products must have some child resistance. This minimizes the occurrence of such a coincidence. It is also the purpose of the idea to minimize the occurrence of such accidental events.

  Compared with a conventional lighter, the present invention has advantages such as easy operation, low cost and high safety.

  Although lighters with CR function are conventionally known, the present invention provides additional lighters with CR function, and the present invention provides easy operation, low cost and effective or high safety function.

  The present invention provides, in a first technical aspect, a lighter, which includes a main body, a shield, a valve assembly, a bracket, a spark wheel, a flint, a flint spring, And a side wheel. The main body includes a gas tank and a tank cover. The valve assembly includes a nozzle, a flame regulator, and a gas release lever. The tank cover is fixed to the top of the tank. The gas release lever has two shafts, one of which is on both sides of the central portion of the gas release lever, and the shaft is fitted in each of the holes formed in the bracket, The gas release lever is configured to rotate about an axis / hole. The front part of the gas release lever sandwiches the nozzle or covers the nozzle. The bracket is fixed to the top of the tank cover by snap fitting attachment. The shield is fixed to the top of the lighter body by snap fitting attachment with the bracket. The spark wheel is in contact with the top of the flint, and the flint spring is fitted into the hole in the bracket and in contact with the bottom of the flint. One side of each of the side wheels is fixed to the spark wheel, for example, at the hole of the spark wheel, and the other side is rotatably attached to the hole of the bracket. The side wheel and the spark wheel have the same single or multiple rotational axes. The outer diameter of the side wheel is approximately equal to or less than the outer diameter of the spark wheel. The outer surface of the side wheel is smooth.

  However, the outer diameter of the side wheel is preferably less than the outer diameter of the spark wheel.

  In another technical aspect, the present invention provides a lighter, which comprises a body, a shield, a valve assembly, a bracket, a spark wheel, a flint, a flint spring, And a side wheel. The main body includes a gas tank and a tank cover. The valve assembly includes a nozzle, a flame regulator, and a gas release lever. The tank cover is fixed to the top of the tank. The front part of the gas release lever sandwiches the nozzle or covers the nozzle. The bracket is fixed to the top of the tank cover by snap fitting attachment. The shield is fixed to the top of the lighter body by snap fitting attachment with the bracket. The spark wheel is in contact with the top of the flint, and the flint spring is fitted into the hole in the bracket and in contact with the bottom of the flint. For example, one side of each of the side wheels is fixed to the spark wheel at the hole portion of the spark wheel, and the other side is rotatably attached to the hole portion of the bracket. The side wheel and the spark wheel have the same single or multiple rotational axes. The two shafts of the gas release lever are attached to both sides near the rear of the gas release lever.

  The outer surface of the side wheel is preferably smooth.

  In order to ignite the lighter, the spark wheel must be rotated to generate sparks at a certain density by flint, and the lever is pushed down to simultaneously release gaseous fuel. And a spark ignites gas fuel and forms a flame. If the finger is rotating the spark wheel, the lever cannot be pushed down at the same time, or if there is not enough force to push the lever down and open the gas valve, no ignition is obtained. Thus, the present invention serves to increase the difficulty of achieving ignition, thereby increasing the safety of the lighter's child resistance.

  In the present invention, the outer diameter of the side wheel is substantially equal to or less than the outer diameter of the spark wheel, and the outer diameter of the side wheel is preferably a side wheel in a prior art lighter. Furthermore, because the outer surface of the side wheel is preferably smooth, the frictional force required between the side wheel and the thumb to rotate the spark wheel is increased. More force is required to push down the spark wheel and the side wheels to generate sufficient force for ignition.

  Furthermore, the shaft of the gas release lever is preferably mounted on both sides in the vicinity of the rear part of the gas release lever. The gas release lever of the lighter is a lever. The axis of the gas release lever is a fulcrum part. The front part of the lever sandwiches the nozzle of the gas valve, while the rear part is a force receiving surface for the finger. When the finger depresses the force-receiving surface, the rear part of the gas release lever is lifted, so that the valve is opened and the gas is released. Since the valve opening force is constant, an increased finger force is required to open the gas valve by moving the lever fulcrum to the rear according to the lever principle. Therefore, the present invention preferably uses this principle. Of course, while the lighter of the prior art generally has the lighter's fulcrum as the center of the lever, the lever's fulcrum in the present invention has been moved slightly rearward, and the finger pressure required to lift the nozzle, i.e., the finger Increasing power.

  When an adult deliberately operates the lighter of the present invention, the adult's finger is stronger, so the adult is strong enough to push down the gas release lever to lift the nozzle and open the valve, As a result, the gas fuel released from the tank is ignited. For this reason, the ignition procedure is the same as that of the prior art lighter. However, when the child tries to light the lighter in the present invention, or when the adult unconsciously operates the lighter, the force to open the nozzle by operating the gas release lever is insufficient, that is, the pressure is not enough Or, because the push-down action is too slow, the spark disappears before gas is supplied from the valve to the ignition point. Thus, ignition is not achieved, and thus the desired increase in child safety is realized.

  The present invention provides its safety by increasing the power required for ignition, and the necessary power can cause the lighter to ignite well for the child because the child cannot apply enough finger force. Make it difficult. Thus, while the present invention is a simple structure, it nevertheless provides its advantages of providing safety and convenience for normal use when in use.

It is sectional drawing which shows 1st Embodiment. It is AA sectional drawing of FIG. It is sectional drawing which shows 2nd Embodiment. It is BB sectional drawing of FIG. It is sectional drawing which shows 3rd Embodiment. It is CC sectional drawing of FIG. 1 shows an assembly comprising a spark wheel and two side wheels in the prior art. FIG. It is a figure which shows the assembly provided with the spark wheel and two side wheel in 1 aspect of this invention. It is a figure which shows the gas release lever in a prior art. It is a figure which shows the gas release lever in 1 aspect of this invention.

[First Embodiment]
First, referring to FIGS. 1 and 2, the present invention includes a shield 1, a bracket 2, a spark wheel 3, a flint 4, a flint spring 5, two side wheels 6, and a main body. ing. The main body includes a gas tank 7, a tank cover 8, and a valve assembly. The valve assembly includes a nozzle 9, a flame regulator 10, a gas release lever 11, and a gas valve. The tank cover 8 is fixed to the top of the tank 7. The gas release lever 11 has two axes, one on both sides of the center of the gas release lever. The shaft is fitted in the hole of the bracket 2, and the gas release lever 11 rotates around the shaft. The front portion of the gas release lever 11 sandwiches the nozzle 9 or covers the nozzle 9. The bracket 2 is fixed or arranged on the top of the tank cover 8 by snap fitting attachment. The shield 1 is fixed or arranged on the top of the lighter main body by snap fitting attachment with the bracket 2. The spark wheel 3 is in contact with the top of the flint 4, and the flint spring 5 is fixed or arranged in the hole of the bracket 2 to support and support the bottom of the flint 4. One side of each of the side wheels 6 is fixed to the hole of the spark wheel 3, and the other side is rotatably attached to the hole of the bracket 2. The side wheel 6 and the spark wheel 3 have the same one or more rotation axes. The outer diameter of the side wheel 6 is substantially equal to the outer diameter of the spark wheel 3 or less than the outer diameter of the spark wheel 3.

  To illuminate the lighter, the user holds the lighter and depresses his or her thumb to rotate the spark wheel 3 and side wheel 6. For this reason, the flint 4 is rubbed or rubbed by the spark wheel 3 to cause a spark. At the same time, the thumb depresses the end of the gas release lever 11, and as a result, according to the lever principle, the front part of the gas release lever 11 lifts the nozzle 9, thereby opening the gas valve 12 to open the gas Is released. For this reason, the gas fuel comes into contact with the spark and ignites above the shield 1.

  The height of the flame is adjusted by the flame regulator 10.

  When the application of force to the end of the gas release lever 11 is stopped, the gas valve 12 automatically returns to its original position, for example, by the valve itself, and thus closes the valve. For this reason, the flame disappears.

  In the present invention, the outer diameter of the side wheel 6 is substantially the same as or smaller than the outer diameter of the spark wheel 3, and the outer diameter of the side wheel 6 is that of a conventional typical lighter. Because it is less than the outer diameter of the side wheel and the outer surface of the side wheel 6 is smooth, a greater frictional force between the side wheel 6 and the thumb is required to rotate the spark wheel 3. Similarly, a greater force is required to push down the spark wheel 3 and the side wheel 6 to generate the necessary rotational movement.

  When an adult deliberately operates the lighter of the present invention, the adult is more powerful than the child, so the adult pushes down the side wheel 6 and the spark wheel 3 to rotate and ignites to form the necessary spark. Therefore, it has sufficient force to open the gas valve 12 for releasing the gas fuel from the tank 7. Thereby, the ignition procedure is the same as that found in prior art lighters. However, when a child tries to ignite a lighter, or when an adult unconsciously operates a lighter, sufficient force is not applied to rotate the spark wheel 3 to form a spark, or the spark is lighter. Does not have sufficient density to ignite. Ignition hardly occurs. Thus, the present invention achieves further safety objectives, particularly due to the lack of power on both sparking and releasing gas fuel.

  The present invention successfully provides this level of safety by increasing the force required to ignite. This prevents the child from igniting the lighter well, or at least making it more difficult for the child to ignite, because the child will not be able to quickly apply the force to the lighter at the same time to form a spark and release gas fuel. To do. This advantage is achieved with a simple structure. Therefore, the present invention provides both safety during use and convenience of operation.

[Second Embodiment]
Next, referring to FIGS. 3 and 4, the present invention includes a shield 1, a bracket 2, a spark wheel 3, a flint 4, a flint spring 5, two side wheels 6, and a main body. I have. The main body includes a gas tank 7, a tank cover 8, and a valve assembly. The valve assembly includes a nozzle 9, a flame regulator 10, a gas release lever 11, and a gas valve 12. The tank cover 8 is fixed to the top of the tank 7. The front portion of the gas release lever 11 sandwiches the nozzle 9 at the position indicated by reference numeral 11C, that is, near the free end of the front portion of the gas release lever 11 and below the flange portion of the nozzle 9. The gas release lever 11 has two axes, and one is on the rear portion 11B of the gas release lever, that is, on both sides of the lever 11 that is not the center. Each of the shafts is fitted in a hole in the bracket 2, so that the gas release lever 11 rotates around the shaft, ie, the position indicated by reference numeral 11B. The end 11D of the gas release lever 11 or the vicinity of the end 11D is an area where the user's thumb pushes down the lever to open the gas valve 12. The ratio of the distance between the positions 11B and 11D and the distance between the positions 11B and 11C is about 1: 1.3, or the ratio may be less. In the prior art, i.e. a commonly used conventional lighter, the distance ratio is mainly about 1: 1. It is a necessary configuration to keep the distance between the positions 11B and 11D smaller than the distance between the positions 11B and 11C.

  The bracket 2 is fixed or arranged on the top of the tank cover 8 by snap fitting attachment. The shield 1 is fixed or arranged on the top of the lighter main body by snap fitting attachment with the bracket 2. The spark wheel 3 is in contact with the top of the flint 4. The flintstone spring 5 is fixed or arranged in the hole of the bracket 2, and the flintstone spring abuts and supports the bottom of the flintstone 4. One side of each of the side wheels 6 is fixed or arranged in the hole of the spark wheel 3, and the other side is rotatably attached to the hole of the bracket 2. The side wheel 6 and the spark wheel 3 have the same single or a plurality of rotation axes. The outer diameter of the side wheel 6 is substantially equal to the outer diameter of the spark wheel 3 or less than the outer diameter of the spark wheel 3. The ignition process is the same as in the first embodiment. In the present invention, the axis of the lever 11 is set at a position close to the point 11B, that is, the end 11D of the gas release lever 11 (the end engaged with the thumb). The ratio between the distance between positions 11B and 11D and the distance between positions 11B and 11C is preferably 1: 1.3 or less, whereas for most prior art lighters, the ratio is About 1: 1 (or 1: n where “n” is less than 1). With this arrangement, the force to raise the nozzle is perhaps 1.3 times that required by the most common prior art lighters. For this reason, the structure of this invention is safer than the structure of a prior art.

[Third Embodiment]
Next, referring to FIG. 5 and FIG. 6, the present invention is that the present invention comprises a shield 1, a bracket 2, a spark wheel 3, a flint 4, a flint spring 5, two side wheels, and a main body. This is the same as in the second embodiment. The main body includes a gas tank 7, a tank cover 8, and a valve assembly. The valve assembly includes a nozzle 9, a flame regulator 10, a gas release lever 11, and a gas valve 12. The tank cover 8 is fixed to the top of the tank 7. The front portion of the gas release lever 11 is sandwiched so as to cover the nozzle 9 or the nozzle 9 at reference numeral 11C. The bracket has a protrusion or a fulcrum portion at a position 11B of the gas release lever 11, and the gas release lever 11 is configured to be rotatable around the position 11B. At the adjacent end 11D of the gas release lever 11, the thumb is used to push the lever down and open the gas valve 12. The ratio of the distance between the positions 11B and 11D and the distance between the positions 11B and 11C is preferably 1: 1.3, or the ratio may be less. This is in contrast to the commonly available prior art lighters, which are about 1: 1 and more typically only 1: n (where “n” is less than 1).

  The principle of child resistance and the ignition process in the third embodiment are the same as those in the second embodiment even if the fulcrum is provided below the lever rather than the shaft is provided on the side of the lever. While the dimensional variations themselves that change the ratio provided for the two axes of the lever in the second embodiment apply to the fulcrum in the third embodiment as well, the first distance is greater than the second distance. Also remains short.

  Further, the function of the first embodiment may be defined in the second embodiment or the third embodiment, and vice versa.

  An exemplary comparison between a standard prior art spark wheel 3 and the preferred spark wheel of the present invention is shown in FIGS. Similarly, the differences between the lever of the present invention and a standard prior art lever are shown in FIGS. The configuration of FIG. 7 is a standard example in a prior art spark wheel. The diameter of the spark wheel is 6.7 mm and the range of diameters expected for the side wheels is 7.5 mm to 9.5 mm. With respect to FIG. 8, FIG. 8 is an example of a spark wheel assembly expected in the present invention. The diameter of the spark wheel is also 6.7 mm. However, the range of possible diameters for the side wheels is probably 6 mm to 7.5 mm. With respect to FIG. 9, FIG. 9 is an example of a standard prior art gas release lever. This is not directly applicable to the lighters of FIGS. 3-6 because the size and shape of these lighters are different from standard prior art lighters (the levers have different sizes and shapes as well). That said, an example of a lighter's standard ratio of lengths on either side of the lighter's pivot axis, here 10.9: 7 (ie roughly 1: 0.64) can be used. On the other hand, FIG. 10 shows a configuration in the present invention. This configuration has a ratio of 8.9: 9, ie roughly 1: 1.01.

  The present invention is defined above by way of example only. Improvements in detail are made to the invention within the scope of the invention as defined by the claims appended hereto.

1 shield, 2 bracket, 3 spark wheel, 4 flint, 5 flint spring, 6 side wheel, 7 gas tank, 8 tank cover, 9 nozzle, 10 flame regulator, 11 gas release lever, 11B point, position, fulcrum position, 11C position, 1st position, 11D end, 12 gas valve

Claims (9)

A shield (1), a bracket (2), a spark wheel (3), a flint (4), a flint spring (5), two side wheels (6), and a main body,
The body includes a gas tank (7), a tank cover (8), and a valve assembly;
The valve assembly includes a nozzle (9), a flame regulator (10), a gas release lever (11), and a gas valve,
The tank cover (8) is fixed or arranged at the top of the tank (7);
The gas release lever (11) has two axes, one of which is on either side of the central part of the gas release lever;
The shaft is fitted in the hole of the bracket (2);
The front part of the gas release lever (11) covers the nozzle (9) or sandwiches the nozzle (9),
The bracket (2) is fixed or arranged on top of the tank cover (8);
The shield (1) is fixed or arranged on the top of the main body of the lighter via the bracket (2);
The spark wheel (3) is in contact with the top of the flint (4);
The flintstone spring (5) is fixed or disposed in the hole of the bracket (2), and is in contact with and engaged with the bottom of the flintstone (4);
One side of each of the side wheels (6) is fixed or arranged in contact with the spark wheel (3), and the other side is rotatably attached to the bracket (2),
The side wheel (6) and the spark wheel (3) have a common axis of rotation;
The cigarette lighter characterized in that the outer diameter of the side wheel (6) is equal to or less than the outer diameter of the spark wheel (3).   The cigarette lighter according to claim 1, characterized in that the outer surface of each of the side wheels (6) is smooth. A shield (1), a bracket (2), a spark wheel (3), a flint (4), a flint spring (5), two side wheels (6), and a main body,
The body includes a gas tank (7), a tank cover (8), and a valve assembly;
The valve assembly includes a nozzle (9), a flame regulator (10), a gas release lever (11), and a gas valve,
The tank cover (8) is fixed or arranged at the top of the tank (7);
The gas release lever (11) has two axes, one extending from both sides,
The shaft is fitted in the hole of the bracket (2);
The gas release lever (11) is configured to rotate about the axis;
The front part of the gas release lever (11) covers the nozzle (9) or sandwiches the nozzle (9),
The bracket (2) is fixed or arranged on top of the tank cover (8);
The shield (1) is fixed or arranged on the top of the main body of the lighter via the bracket (2);
The spark wheel (3) is in contact with the top of the flint (4);
The flintstone spring (5) is fixed or disposed in the hole of the bracket (2), and is in contact with and engaged with the bottom of the flintstone (4);
One side of each of the side wheels (6) is fixed or arranged in contact with the spark wheel (3), and the other side is rotatably attached to the bracket (2),
The side wheel (6) and the spark wheel (3) have a common axis of rotation;
The two shafts of the gas release lever (11) can be engaged with the thumb of the gas release lever (11) rather than the position (11C) of the gas release lever with which the nozzle (9) is engaged ( 11D) is set at a point (11B) close to the cigarette lighter.   4. The cigarette lighter according to claim 3, wherein the outer surface of each of the side wheels (6) is smooth. A shield (1), a bracket (2), a spark wheel (3), a flint (4), a flint spring (5), two side wheels (6), and a main body,
The body includes a gas tank (7), a tank cover (8), and a valve assembly;
The valve assembly includes a nozzle (9), a flame regulator (10), a gas release lever (11), and a gas valve,
The tank cover (8) is fixed or arranged at the top of the tank (7);
The front portion of the gas release lever (11) covers the nozzle (9) or sandwiches the nozzle (9) in the first position (11C),
The bracket has a protrusion or a fulcrum at the fulcrum position (11B) of the gas release lever (11),
The gas release lever (11) is configured to rotate about the fulcrum position (11B);
The projection or fulcrum of the bracket (2) can engage the thumb of the gas release lever (11) rather than the first position (11C) of the gas release lever that engages the nozzle (9). Cigarette lighter, characterized in that it is set at a position (11B) close to the end (11D).   Cigarette lighter according to claim 5, characterized in that the outer surface of each of the side wheels (6) is smooth. A shield (1), a bracket (2), a spark wheel (3), a flint (4), a flint spring (5), two side wheels (6), and a main body,
The body includes a gas tank (7), a tank cover (8), and a valve assembly;
The valve assembly includes a nozzle (9), a flame regulator (10), a gas release lever (11), and a gas valve,
The tank cover (8) is fixed or arranged at the top of the tank (7);
The gas release lever (11) has two axes, one of which is on either side of the central part of the gas release lever;
The shaft is fitted in the hole of the bracket (2);
The front part of the gas release lever (11) covers the nozzle (9) or sandwiches the nozzle (9),
The bracket (2) is fixed or arranged on top of the tank cover (8);
The shield (1) is fixed or arranged on the top of the main body of the lighter via the bracket (2);
The spark wheel (3) is in contact with the top of the flint (4);
The flintstone spring (5) is fixed or disposed in the hole of the bracket (2), and is in contact with and engaged with the bottom of the flintstone (4);
One side of each of the side wheels (6) is fixed or arranged in contact with the spark wheel (3), and the other side is rotatably attached to the bracket (2),
The side wheel (6) and the spark wheel (3) have a common axis of rotation;
The outer diameter of the side wheel (6) is equal to or less than the outer diameter of the spark wheel (3),
The end portions on which the two shafts of the gas release lever (11) can engage the thumb of the gas release lever (11) rather than the position (11B) of the gas release lever engaged with the nozzle (9) A cigarette lighter characterized by being set at a point (11B) close to (11D). A shield (1), a bracket (2), a spark wheel (3), a flint (4), a flint spring (5), two side wheels (6), and a main body,
The body includes a gas tank (7), a tank cover (8), and a valve assembly;
The valve assembly includes a nozzle (9), a flame regulator (10), a gas release lever (11), and a gas valve,
The tank cover (8) is fixed or arranged at the top of the tank (7);
The front portion of the gas release lever (11) covers the nozzle (9) or sandwiches the nozzle (9) in the first position (11C),
The bracket has a protrusion or a fulcrum at the fulcrum position (11B) of the gas release lever (11),
The gas release lever (11) is configured to rotate about the fulcrum position (11B);
The projection or fulcrum of the bracket (2) can engage the thumb of the gas release lever (11) rather than the first position (11C) of the gas release lever that engages the nozzle (9). Is set at a position (11B) close to the end (11D),
The cigarette lighter characterized in that the outer diameter of the side wheel (6) is equal to or less than the outer diameter of the spark wheel (3).   9. The cigarette lighter according to claim 8, wherein the outer surface of each of the side wheels (6) is smooth.

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