JPH0650167B2 - Burning wick - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a wick for a combustion instrument, which has remarkably improved the ignition performance of a petroleum stove, a petroleum hob or the like.

<< Prior Art >> There are two types of methods for igniting a wick for a combustion appliance: a means for igniting a red-hot ignition heater close to the wick and a means for igniting a red-heated ignition heater incorporated in the wick itself. And as the latter means, Japanese Patent Publication No. 52-22453
As disclosed in Japanese Unexamined Patent Publication (Kokai), both ends of a flat plate-shaped core member are annularly connected by a connecting member via an ignition heater having a heat generating portion upward and a spacing plate located below the ignition heater. An annular core formed by the above is known.

Moreover, as disclosed in Japanese Utility Model Publication No. 45-310,
A core is known in which the upper end of the core is folded back in the inner peripheral direction, and a heating wire is built in the space between the bent piece and the core main body over the entire inner periphery of the upper end of the core.

Also, as disclosed in Japanese Utility Model Publication No. 47-10603, it is known that one or more notches are provided on the upper edge of the core so that a part of the heating wire is exposed from the notches. Has been.

Further, as shown in FIGS. 4 and 5, the non-combustible fiber core 30
The notch 31 is formed at the upper edge of the core, and the ignition heater 33 in which both ends of the filament are joined to the ends of the power supply lines 32 and 32 which are sewn inside the core and electrically connected to the notch 31 is provided with the notch 3
The one fixed in No. 1 is known (Shokaisho 61-69).
665 publication).

Further, as shown in FIGS. 6 and 7, the kerosene suction core 35
In the burner provided with the
It is known that a through hole 37 penetrating the wick is provided in the lower part of the lamp and an ignition heater 38 is inserted into the through hole 37 (see Japanese Utility Model Laid-Open No. 54-173345).

<< Problems to be Solved by the Invention >> In the former technique described above, the former means is that the fluff of the wick comes into contact with the filament of the ignition heater, and the filament is cut, or the fluff absorbs heat to cause red heat. There were problems such as difficulty. As a means of the latter, Japanese Patent Publication Sho 52
What is disclosed in Japanese Laid-Open Patent Publication No. 224453 is that the fluff portions at both ends of the core material corresponding to the ignition portion are deformed by the hand of the worker or the contact with the combustion appliance when the core is incorporated into the combustion appliance, Also, due to high temperature such as empty heating, thermal deformation of the fluff part,
Furthermore, due to shrinkage and deformation due to tar formation due to long-term combustion, bad kerosene combustion, etc., the distance between the heat generating part of the ignition heater and the igniting part of the wick changes, and the distance between the heat generating part of the igniting heater and the igniting part of the wick changes. There is a problem in that the ignition performance becomes extremely unstable because of a problem such as separation.

Moreover, what is disclosed in Japanese Utility Model Publication No. 45-310 is
Since the heating wire is built into the core, it takes a considerable time for the generated fuel vapor to reach the ignition point, and during this period there is a major drawback that white smoke and unpleasant odors are generated by the fuel vapor. Because it takes a lot of time, 100 other than dry batteries
It is inconvenient to carry because it is necessary to rely on a volt AC power source, etc., and a wiring cord is required for the burner.

The one disclosed in Japanese Utility Model Publication No. 47-10603 is
Even if the notch is provided, it takes a considerable time to ignite, and there is a problem that white smoke and odor are generated.

Further, in the structure shown in FIGS. 4 and 5, since the notch 31 of the non-combustible fiber core 30 is easily deformed, the notch 31 of the ignition heater 30 is easily deformed.
The distance between the filament of No. 3 and the inner wall of the notch 31 which is the ignition site is unstable, and ignition is not reliable. Since the non-combustible fiber core 30 is fluffed, the cutout 3
No. 1 is also fluffed, the filament of the ignition heater 33 and the fluff come into contact with each other, and the heat of the filament of the ignition heater 33 is lost.
Since the upper part is open, the filament of the ignition heater 33 is hard to be protected, and there is a problem that the wire is easily broken.

6 and 7, the ignition heater 38 penetrated through the through hole 37 is in contact with the kerosene suction core 35, so that it takes time for the heat to be removed and the temperature required for ignition to rise. It cannot be ignited quickly and further, since both ends 39, 39 of the ignition heater 38 project from both wall surfaces of the kerosene suction core 35, the oil stove capable of adjusting the heating power by moving the core up and down, There is a problem that it cannot be used as the core of an oil hob.

This invention solves the above-mentioned problems, is robust and does not wear, and it is possible to ignite quickly and surely without deteriorating the ignition performance for a long period of time and suppress the generation of odor at the time of ignition. Another object of the present invention is to obtain a wick for a burning appliance which can be used in a burning appliance in which the heating power can be adjusted by further moving the wick up and down.

<< Means for Solving Problems >> In order to achieve the above-mentioned object, the core for a combustion instrument of the present invention is
A core made of porous ceramics as a heat-resistant hard plate-like body 2 having fuel permeability, or a woven fabric / knitted body mainly made of glass fiber / flame-resistant fiber / ceramic fiber. The heat-resistant core 3 is formed so as to be interposed between the material main plates 7, and the ignition window 4 is formed at a position slightly lower than the upper edge 14 of the heat-resistant hard plate body 2 on which the heat-resistant core 3 is formed. 4, the metal filament 5 for ignition is attached via the end portions 22, 22 at both ends thereof, and the metal filament 5 for ignition is along the inner peripheral edge 6 of the ignition window 4 and the metal filament 5 for ignition and the end portion 22, 22 is heat resistant core 3
The metal filament 5 for ignition is fixed in the ignition window 4 so that it does not protrude further, and the metal filament 5 for ignition is further separated from the inner peripheral edge 6 of the ignition window 4 and the small gap 1.
5 is provided opposite to each other.

<< Function >> The wick for a combustion appliance configured as described above has an inner peripheral edge 6 facing the metal filament 5 for ignition provided on the ignition window 4.
Is composed of the heat-resistant hard plate-like body 2 having fuel permeability, so that when the ignition metal filament 5 is red-heated, the inner peripheral edge 6 opposite thereto is heated, the fuel evaporates, and instantaneously. Ignition is performed. The ignited fire is the upper edge 1 of the heat-resistant core 3.
Then, the ignition operation ends.

<Example> An example of the present invention will be described below with reference to the drawings. Reference numeral 2 is a heat-resistant hard plate-like body 2 having a fuel permeability and made of porous ceramics. The heat-resistant core 3 is formed, and the ignition window 4 is formed at a position slightly lower than the upper end edge 14 of the heat-resistant core 3, and the metal filament 5 for ignition is provided in the ignition window 4 and the end portions 22, 22 at both ends thereof.
And the metal filament 5 for ignition along the inner peripheral edge 6 of the ignition window 4 and the metal filament 5 for ignition.
Also, the end portions 22 and 22 are fixed in the ignition window 4 so that they do not protrude from the heat resistant core 3, and the ignition metal filament 5
Is the one opposed to the inner peripheral edge 6 of the ignition window 4 with a small gap 15 between them, and the heat-resistant core 3 of the embodiment shown in FIG. It was done,
The heat-resistant core 3 of the embodiment shown in FIGS. 2 and 3 is made of the heat-resistant hard plate-like body 2 which is made of glass fiber, flame resistant fiber, ceramic fiber, or other non-combustible material made of woven fabric or knitted fabric. It is formed so as to be interposed between the core material main plates 7. Further, 9 is a fuel-wicking core formed of cotton fiber or the like having good fuel-wicking characteristics, and is provided with a large number of cutting strips 10, 10, ... For facilitating bending and stretching when the core is moved up and down. Is. Reference numeral 11 is an upper and lower connecting portion.

Further, the heat-resistant hard plate-like body 2 and the core material main plate 7 are connected by sewing.
This is done through a connecting tool 16 such as metal fittings and adhesion.

Further, the inner peripheral edge 6 of the ignition window 4 facing the ignition metal filament 5 is smooth without fluff, and the ignition window 4 is at least a portion of the ignition window 4 exposed from the fire tray during the ignition operation. It may be provided in a position and, after ignition, may be housed in the pan. Further, the ignition window 4 can be provided by cutting out with a punching blade such as a punch.

The metal filament 5 for ignition may be linear or coil-shaped, but the coil-shaped metal filament 5 is preferable because it is more likely to glow red.

The material of the metal filament 5 is platinum wire, nichrome wire,
Although a stainless steel wire or the like having resistance to oxidation is used, a platinum wire which has an oxidation catalytic action and whose filament is red-heated by self-heating is the most preferable.

Further, the small gap 15 at the inner peripheral edge 6 of the ignition window 4 which faces the metal filament 5 for ignition is 0.3 to 5 mm, preferably 1 to 3 mm. If this distance is too short, too much fuel vapor is generated, and the mixture ratio of fuel vapor to air is too high to cause ignition, and if it is too far, too little fuel vapor is caused to cause ignition.

Further, for the power supply at the time of ignition to the ignition metal filament 5, a dry battery is used as a power source, and a thin lead wire 21 is directly connected to the terminal 12 of the ignition metal filament 5 to supply power, or to the terminal of the ignition metal filament 5. There is a configuration in which a power supply terminal (not shown) is brought into contact with the power supply at the time of ignition to supply power.

Further, the portion of the ignition window 4 made of the heat-resistant hard plate-like body 2 exposed from the fire tray (not shown) during combustion burns the fuel in the core by cutting off the fuel (in order to remove tar). Operation to burn off) is something that becomes a high temperature of around 800 ℃.

<< Effects of the Invention >> The present invention has the above-described configuration, and since the inner peripheral edge 6 of the ignition window 4 that faces the ignition metal filament 5 is made of porous ceramics, the ignition window 4 The inner peripheral edge 6 has no fluff and is smooth, and the distance from the ignition metal filament 5 can be accurately set. Further, since the heat-resistant hard plate-like body 2 has fuel permeability, it contains an appropriate amount of fuel, The fuel is quickly evaporated from the surface of the metal filament 5 for heating and ignited easily and quickly.

Further, the fuel supply to the heat-resistant hard plate-like body 2 above the ignition window 4 is
Due to the existence of the ignition window 4, it is not sufficient to maintain normal combustion, and always becomes a dry state. As a result, even if the fuel is burned using a fuel containing a bad component such as defective kerosene, the tar is not significantly attached to this portion, and stable and reliable ignition is performed.

Further, in the small gap 15 at the inner peripheral edge 6 of the ignition window 4 which is opposed to the ignition metal filament 5, if this distance is too short, too much fuel vapor is generated, and the mixing ratio of fuel vapor to air is too high. It is difficult to ignite, and if it is too far, the amount of fuel vapor is too small to make it difficult to ignite. However, the distance between the metal filament 5 for ignition and the inner peripheral edge 6 opposite to it does not change even after long-term combustion and is always stable. As a result, reliable ignition can be performed, and since the ignition is performed quickly, fuel vapor is not diffused to the surroundings, and white smoke and odor at the time of ignition are not generated.

In addition, it consumes less power and consumes less power because it can be ignited quickly, and the dry cells can be used without replacement for a long period of time, and since there is no need for a 100-volt AC power supply, there is no wiring cord, and it is easy to carry a burning appliance. It is convenient.

Also, the metal filament 5 for ignition is housed in the ignition window 4 of the heat-resistant hard plate-shaped body 2. The metal filament 5 for ignition is separated from the metal filament 5 for ignition through the end portions 22, 22 at both ends thereof. Along with the inner peripheral edge 6 of the ignition window 4, the metal filament 5 for ignition and the end portions 22, 22 are made of the heat-resistant core 3.
Since it is fixed in the ignition window 4 so that it does not stick out further, it is less likely to come into contact with other obstacles and the like, and damage such as disconnection and deformation does not occur easily. It is suitable as a core for oil stoves and oil stoves for adjustment.

Further, since the heat-resistant hard plate-like body 2 having fuel permeability is made of porous ceramics as a material, it is robust and does not wear, and the shape of the ignition window 4 does not change for a long period of time.
The gap is maintained constant and ignition can be reliably performed for a long period of time.

That is, according to the present invention, the inner peripheral edge 6 of the ignition window 4 has no fluff, and the distance between the ignition filament 4 and the ignition metal filament 5 can be accurately set. Further, the heat-resistant hard plate 2 has fuel permeability. When a fuel containing an appropriate amount of fuel is rapidly evaporated from the surface by heating from the ignition metal filament 5, the fuel is ignited easily and quickly, and the fuel is burned using a fuel containing a bad component such as defective kerosene. However, tar adhesion to the inner peripheral edge 6 of the ignition window 4 is extremely small, stable and reliable ignition is performed, and the distance between the metal filament 5 for ignition and the inner peripheral edge 6 opposite to each other is long even if combustion is performed. It does not change and can always be steadily and reliably ignited, and since it is ignited quickly, fuel vapor is not dissipated to the surroundings, and white smoke and odor at the time of ignition are not generated, Furthermore, a small electric train Moreover, because it can ignite quickly, it consumes less power, can be used without changing the dry cell for a long time, is convenient for carrying a burning appliance, and the ignition metal filament 5 and the end portions 22, 22 are more than the heat-resistant core 3. Since it is fixed in the ignition window 4 so that it does not stick out, contact with other obstacles and the like is less likely to occur, damage such as disconnection and deformation is less likely to occur, and the core is further raised and lowered to adjust the heating power. It is suitable as a core of an oil stove and an oil stove for carrying out, is robust and does not wear, does not change the shape of the ignition window 4 for a long period of time, and keeps a small gap 15 at a constant interval to ignite for a long period of time. It has an industrial effect such as being surely performed.

[Brief description of drawings]

FIG. 1 is a perspective view, FIG. 2 is a perspective view of another embodiment, and FIG. 3 is a cutaway front view of a main part in FIG. 2, FIG. 4, FIG.
6 and 7 are explanatory views of a conventional example. 2 ... Heat-resistant hard plate-like body, 3 ... Heat-resistant core, 4 ... Ignition window, 5 ... Ignition metal filament, 6 ... Inner peripheral edge, 7
...... Core material main plate, 9 ... Fuel absorption core, 10 ... Cutting strip,
11 …… upper and lower connecting parts, 12 …… terminals, 14 …… upper edge,
15 ... small gap, 16 ... connector, 21 ... conductor, 22
...... Terminal section

Claims (2)

[Claims] 1. A heat-resistant hard plate-like body 2 having fuel permeability and formed of porous ceramics, and a heat-resistant core 3 is formed from the heat-resistant hard plate-like body 2. The ignition window 4 is formed at a position slightly lower than the upper edge 14, and the ignition metal filament 5 is attached to the ignition window 4 via the end portions 22, 22 at both ends thereof. The ignition metal filament 5 and the end portions 22 and 22 are fixed in the ignition window 4 along the inner peripheral edge 6 of the ignition window 4 so as not to protrude from the heat resistant core 3, and the ignition metal filament 5 is fixed to the ignition window 4. A wick for a combustion instrument, which is opposed to the inner peripheral edge 6 with a small gap 15. 2. A heat-resistant hard plate-like body 2 having fuel permeability is formed from porous ceramics, and the heat-resistant hard plate-like body 2 is made of glass fiber, flame resistant fiber, ceramic fiber, or other noncombustible material. The heat-resistant core 3 is formed by interposing the non-combustible core material main plate 7 made of a woven or knitted fabric mainly composed of fibers, and slightly from the upper edge 14 of the heat-resistant hard plate-shaped body 2 on which the heat-resistant core 3 is formed. The ignition window 4 is provided at a lower position and the ignition window 4 is provided.
Ignition metal filament 5 on both ends 2
2, the ignition metal filament 5 is arranged along the inner peripheral edge 6 of the ignition window 4 and the ignition metal filament 5 and the end portions 22 and 22 do not protrude from the heat resistant core 3. A core for a combustion appliance, characterized in that it is fixed inside, and further, the ignition metal filament 5 is opposed to the inner peripheral edge 6 of the ignition window 4 with a small gap 15.