JPH0351648Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Purpose of the invention) This invention was designed to provide an appropriate and stable flame at all times during use, easily replenish fuel from the crater, and have a simple structure and production method. Its purpose is to provide writers.

The inventor of this patent was published in 19325
158419), the pen-type lighter listed in A below was made public.

(A) Figure 4 corresponding to Figure 1 in the above patent publication
Referring to the figure, the known pen-type lighter is comprised of the following components. That is, the fuel storage tank A1 is slender and forms the gripping body of the lighter, and a thick elastic gasket A2 is fitted and glued into the opening.

Windshield wall A4 consists of a U-shaped plate whose skirt part is fitted into the fuel storage tank A1 so that it cannot easily come off.

The base of the crater valve rod A12, which has a bulge formed at the top and a side hole A14 following the shaft hole, is tightly fitted into the elastic gasket A2.

Flint holder A7 A slender cylinder is provided along the crater valve rod A12, and a file wheel A8 is pivotally supported at the top end of the slender cylinder, which comes into contact with the flint A9 which receives the elasticity of a coil spring A10 whose lower end is supported by the fuel storage tank A1. It's bright.

Coupling device This is for driving the crater valve rod A12 forward in conjunction with the depression of the flint holder A7.

Aα Note that in the known gas lighter, the hem of the bulging portion of the tinder valve rod A12 reaches the elastic gasket A2 and is supported only by the elastic gasket A2, so that the tinder valve rod A12 is located below the elastic gasket A2. It has become impossible to move to.

Further, the flint holder A7 is attached to the windshield wall A4.
A long hole A6 bored in the left and right guide edges A5 and a locking shaft A11 protruding from the side of the flint holder A7.
Therefore, it is locked to the windshield wall A4 with difficulty.

Further, in the known pen-type lighter, the linking device includes a conical surface A13 provided on the bulge and the locking shaft A11.

In addition to the above-mentioned A requirement, the known pen-type lighter also requires Aα, and therefore the side hole A1
4 cannot be opened below the elastic gasket A2, so fuel cannot be replenished from the crater.

On the other hand, the inventor of this invention was
-19367) disclosed a pen-type lighter (hereinafter referred to as ``the latter known lighter'') that can be refueled through the valve stem of the gas release valve.

That is, referring to FIG. 5 corresponding to FIG. 3 in the same patent publication, this latter known lighter is as follows:
It has a cap B9 that also serves as a windshield wall, and this cap B9 is equipped with a crater pipe (the crater is designated by the symbol B11), which is separate from the valve rod B1, a flint holder, a clip B29, and a clip support. a shelf wall B34 for supporting the crater pipe and the flint holder, and a spacer B for tilting the valve rod B1.
31, an elastic gasket at the head of the valve rod B1, and a cylindrical spring B92 for elastically supporting the cap B9 in and out of the fuel storage tank B2. Therefore, in the latter known lighter, the cap B9 that supports all the above-mentioned members is removed to expose the valve rod B1, and fuel is injected from the head of the valve rod B1. In order to push down the valve rod B1 during replenishment and open the side hole B13 into the fuel storage tank B2, the valve rod B1 is elastically supported by a coil spring B6. On the other hand, when igniting the valve rod B1
In order to open the valve by tilting the valve, the conical surface of the bulging portion B14 is made to engage with the eccentric hole of the spacer B31,
The head of the valve rod B1 is adapted to move laterally in response to the horizontal thrust of the edge of the eccentric hole.

However, when the cap B9 is pressed down, the conical surface receives both the horizontal thrust and the vertical thrust.
1 descends and the side hole B13 opens, making it impossible to obtain an appropriate flame for smoking. However, coil spring B6
If the elasticity of the coil spring B6 is increased, it will cause discomfort when rotating the file wheel B28 while pressing it with a fingertip. On the other hand, the elasticity of the coil spring B6 will decrease due to changes over time due to use, making it difficult to operate the file wheel B28 properly. The flame and its stability are lost, rendering the entire lighter unusable.

The latter known lighter mentioned above has such a significant drawback that it has not been put into practical use. Moreover, as mentioned above and as can be seen from the drawings, the latter known lighter uses the cap itself, which also serves as a windshield wall, as the driving member for the valve rod, so it has to be constructed with a large number of members. Assembling requires a great deal of labor and skill, and as a result, the cost is inevitably high.

Therefore, this invention was made in order to make it possible to provide a pen-type lighter that is free from the above-mentioned drawbacks, is simple, low-cost, and has an excellent usability.

(Configuration of the invention) That is, the gas lighter according to the invention has a fuel storage tank 1 corresponding to the fuel storage tank A1 in the configuration of A above for the above-mentioned known gas lighter,
Windshield wall 2 corresponding to windshield wall A2, crater valve rod A
Crater valve rod 3 corresponding to 3, flint holder A6
It has a flint holder 6 corresponding to the flint holder 6, and a linking device corresponding to the linking device. According to this invention, the crater valve rod 3 described above is
The bulging portion 33 is elastically supported by a coil spring 5 interposed between the elastic gaskets 4, and a cap 36 for preventing slipping off is attached to the bottom end. Next, the above-mentioned flint holder 6 is attached to the windshield wall 2 by the guide claws 22 formed on the left and right edges 21 of the windshield wall 2 and the receiving groove 65 vertically bored in the circumferential surface of the narrow tube 61. It is fitted in such a way that it can be slid and removed freely. Also,
The above-mentioned linking device has a claw plate 67 that projects forward from the narrow tube 61 and has a beveled edge 66 formed above the bulge 33, and a claw plate 67 whose upper portion is connected to the bulge 33 between the narrow tube 61 and the crater valve rod 3. It consists of a leaf spring 7 that is vertically positioned.

This idea is made as described above,
Hereinafter, referring to the illustrated example, the fuel storage tank 1 is formed into a slender shape like the shaft of a fountain pen made of a synthetic resin membrane, and has a storage chamber 11 inside. The elastic gasket 4 is fitted into the opening of the fuel storage tank 1 and bonded to form the top wall of the fuel storage tank 1. code 41
is an adhesive.

The windshield wall 2 is made up of the left and right sides of a U-shaped plate (left and right refers to
In the drawing, guide claws 22 are formed on the edges 21 of the front and back sides, respectively. However, since FIGS. 1 and 2 are longitudinal sectional views, only the right edge is shown, and the left side, that is,
Note that the front edge is not exposed. In addition, in FIG. 1, the position where the guide groove 65 is bored corresponds to the back side of the narrow tube 61, and is therefore shown by an imaginary line. 23 is a mooring claw of the windshield wall 2.

Regarding the crater valve rod 3, 36 is a cap glued to the lower end of the shaft hole 35 in order to prevent the crater valve rod 3 from slipping out upward and at the same time close the lower end of the shaft hole 35. Reference numeral 37 denotes an exhaust groove formed by cutting out a part of the peripheral wall of the crater valve rod 4. When the crater valve rod 3 is in the lowered position shown in FIG. It is provided to speed up the injection of liquefied gas fuel by releasing the vaporized gas to the outside.

In the illustrated embodiment, a clip 68 is provided on the flint holder 6 for convenience in carrying the lighter. As mentioned above, the flint holder 6 is
It is guided and supported by guide claws 22 of the windshield wall 2 so that it can be freely inserted and removed, but since it would be a problem if it could easily fall off, it is anchored so strongly that it cannot come off unless it is pulled strongly upwards. 12 is a spring support fixed to the fuel storage tank 1 to support the coil spring 62.

This device is constructed as described above, so the crater valve rod 3 fitted with the coil spring 5 is inserted into the elastic gasket 4, the cap 36 is glued to the bottom end of the crater valve rod 3, and the elastic gasket 4 is attached to the fuel storage tank. 1
Then, the windshield wall 2 is attached to the fuel storage tank 1. Next, a flint 63 and a coil spring 62 are attached to the thin tube 61 to which the file wheel 64 is attached.
is inserted, and while the guide claw 22 of the windshield wall 2 is engaged with the guide groove 65, the flint holder 6 is inserted from above the windshield wall 2, and assembly of the lighter is completed. Incidentally, it is preferable that the first fuel filling be performed before the above-mentioned flint holder 6 is assembled.

FIG. 2 shows the state before the flint holder 6 is assembled, or when the flint holder 6 is pulled out from a completed lighter. To make the situation easier to see, these members are drawn in a perspective view with a slight clockwise twist.

To fill the lighter according to this invention with fuel, as shown in FIG. Since the crater valve rod 3 is lowered and the side hole 34 appears in the fuel storage tank 1, the fuel discharged from the nozzle 8 is injected into the fuel storage tank 1 through the side hole 34. When the fuel filling is completed and the nozzle 8 is removed, the nozzle valve rod 3 elastically supported by the coil spring 5 rises, and the side hole 34 is closed by the elastic gasket 4, and the first
Return to inoperative position as shown. Such a fuel filling process is exactly the same for initial filling and for replenishment when fuel is exhausted.

Next, to ignite a lighter that has already been filled with fuel, push down the flint holder 6 with your fingertips and rotate the file wheel 64 with your fingertips. The ignition point by the file wheel 64 also descends vertically.

By the way, according to this invention, the above-mentioned linking device protrudes forward from the narrow tube 61 of the flint holder and connects to the beveled edge 6 above the bulge 33 of the crater valve rod.
The flint holder 6 is made up of a claw plate 67 that forms a holder 6, and a leaf spring 7 that stands between the narrow tube 61 and the crater valve rod 3 so that its upper part is positioned along the bulge 33. When the pawl plate 67 descends, the beveled edge 66 comes into contact with the top of the leaf spring 7, and a horizontal thrust and a vertical thrust are applied to the abutting portion. Since the leaf spring 7 stands upright along the bulge 33, it is immovable against the vertical thrust, and tilts forward due to the horizontal thrust, and at the same time, the leaf spring 7 pushes the crater valve rod 3 through the leaf spring 7. leans forward. That is, the crater valve rod 3 receives horizontal thrust but is not affected by vertical thrust. Therefore, the crater valve rod 3 supported by the coil spring 5 only tilts and does not move downward. Even if the elasticity of the coil spring 5 is weak, the side hole 34 will come out of the elastic gasket 4 and the fuel storage tank 1 will be closed.
There is no opening inward.

In this way, the moment the crater valve rod 3 tilts forward,
The engagement pressure of the elastic gasket 4 against tight insertion into the elastic gasket 4 is relaxed, and this pressure relaxation causes
High pressure gas in the fuel storage tank 1 is released from the crater through the side hole 34 and is ignited by sparks generated by the rotation of the file wheel 64. By the way, crater valve rod 3
does not receive any vertical thrust, the operation of the crater valve rod 3 is unrelated to the strength of the elasticity of the coil spring 5, and the above-mentioned degree of pressure relaxation is always constant at the lower limit of the depression of the flint holder 6. , a constant flame is always obtained during use. Since the operation of the crater valve rod 3 is thus independent of the magnitude of the elasticity of the coil spring 5, it is possible to select a coil spring 5 with weak elasticity, and since the upright leaf spring 7 originally has weak elasticity against horizontal thrust, When smoking, the flint holder 6 has a light feel of operation, and an appropriate and stable flame can always be obtained.

When the pressing down of the flint holder 6 is released,
Due to the pressure of the coil spring 62, the flint holder 6
returns to its original position, and at that time, the claw plate 67 also rises, and the pressure of the claw plate 67 against the crater valve rod 3 is removed, so the elasticity of the coil spring 5 and elastic gasket 4 that support the crater valve rod 3 closes the crater. The valve rod 3 returns to its upright, non-operating state, and the flame is extinguished.

(Effect of the invention) Thus, according to this invention, during ignition operation, the crater valve rod opens by tilting forward without receiving vertical thrust, so the strength of the elasticity of the coil spring for supporting the crater valve rod is irrelevant. A proper and stable flame can be obtained, and the proper stability of the flame is not affected by changes in the elasticity of the coil spring over time.Furthermore, according to this invention, the fuel injection operation can be performed simply by removing the flint holder. It is not only easier to use than the above-mentioned known valve stem injection type pen type lighter, but also has a significantly simpler structure, a much smaller number of parts, and is lighter. Assembly costs are also much lower, so
According to this invention, a slender lighter that is so comfortable to use that it can be compared with high-end lighters can be provided at a low cost.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of the main part of an embodiment of the lighter according to this invention when it is not in operation, Fig. 2 is a longitudinal cross-sectional view of the main part when fuel is injected, Fig. 3 is a parts diagram, and a is a crater. Valve stick 3, b is coil spring 5, c
is an elastic gasket 4, d is a leaf spring 7, and e is a cap 36. Figure 4 shows the prior art
Figure 5 is a longitudinal cross-sectional view of the essential parts of the lighter disclosed in Publication No. 19325 when it is not in operation.
FIG. 2 is a longitudinal cross-sectional view of a main part of a lighter disclosed in Publication No.-32863. 1 is a fuel storage tank, 11 is a storage chamber, 2 is a windshield wall, 21
is the side edge, 22 is the guide claw, 23 is the mooring claw, 3 is the crater valve rod, 31 is the head, 32 is the base, 33 is the bulge,
34 is a side hole, 35 is a shaft hole, 36 is a cap, 37
is an exhaust groove, 4 is an elastic gasket, 41 is an adhesive,
5 is a coil spring, 6 is a flint holder, 61 is a narrow tube, 62 is a coil spring, 63 is a flint, 64 is a file wheel, 65 is a guide groove, 66 is a beveled edge, 67 is a claw plate, 68 is a clip, 7 is a Leaf spring, 71 is the shoulder part,
8 is a nozzle.

Claims (1)

[Scope of utility model registration request] A slender fuel storage tank 1 that forms the grip body of the lighter and has a thick elastic gasket 4 fitted and glued into the opening, and a U that fits into the fuel storage tank 1 with a hem portion that is difficult to come off.
A windshield wall 2 made of a letter-shaped plate, a crater valve rod 3 having a bulging portion 33 formed on the upper part and a base portion provided with a side hole 34 continuing to a shaft hole 35 and tightly inserted into an elastic gasket 4, and the crater valve rod 3. A narrow cylinder 61 is provided along with the fuel storage tank 1, and a flint 63 is inserted into the narrow cylinder 61 to receive the elastic support of a coil spring 62 whose lower end is supported by the fuel storage tank 1.
In this gas lighter, the flint valve rod 3 is equipped with a flint holder 6 which is pivotally supported on the top end of the gas lighter, and a linkage device for driving the crater valve rod 3 forward by pushing down the flint holder 6. The protruding portion 33 is elastically supported by a coil spring 5 interposed between the elastic gaskets 4, and a cap 3 for removal is provided at the bottom end.
The flint holder 6 is attached to the windshield wall 2 by means of guide claws 22 formed on the left and right edges 21 of the windshield wall 2 and a receiving groove 65 vertically bored in the circumferential surface of the narrow tube 61. The interlocking device includes a claw plate 67 that is slidably inserted and inserted into and removed from the tube, projects forward from the narrow tube 61, and forms a beveled edge 66 above the bulging portion 33.
and a leaf spring 7 which is installed upright between the narrow tube 61 and the crater valve rod 3 so that its upper part is located along the bulge 33.
A tinder injection type gas lighter consisting of.