JPH01147214A - Kerosene stove - Google Patents

Abstract

PURPOSE:To make it easy to select the position of mounting a manipulation part and to perform adjustment of the amount of combustion and switching of the amount of combustion by providing a control circuit which moves the wick up and down by rotating forwardly or reversely a motor according to a preset motion in response to a key input. CONSTITUTION:A motor 6 which drives a wick lifting mechanism 3 and can be rotated forwardly or reversely is set through a reduction mechanism, 7 to mesh removably with a gear 4 of a wick lifting shaft 5. A control circuit 8 outputs the output which is beforehand determined according to the content in an input from individual output ports in a microcomputer 8a. Input switches I1-I8 of the microcomputer 8a are connected to input ports I1-I8. By pressing down the key switch, H signal is inputted and by releasing the key switch, L signal is inputted. According to the input of the key a specified output is outputted to the output ports O1 and O2. In a motor driving circuit 20 which drives the motor forwardly or reversely, the motor is driven forwardly or reversely according to the output of the output port O1 and O2 of the microcomputer 8a.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a kerosene stove in which the amount of combustion is adjusted by moving the wick up and down.

BACKGROUND OF THE INVENTION In general, this type of kerosene stove has a wick 3 connected to a wick 21 via a pin 22, as shown in FIG.

The lamp wick 21 was moved up and down by moving the up and down lever 23 up and down to burn and extinguish the fire. In the figure, 24 is a pivot point of the core up/down lever 23, 25 is a fuel tank, 26 is a core guide tube, 27 is a core outer tube, and 28 is a combustion tube.

Problems to be Solved by the Invention However, in the above-mentioned conventional configuration, (1) the vertical movement of the lamp wick is performed by operating a wick up/down lever; therefore, the position of the operating part is limited to the front and bottom, resulting in poor operability; , there are also restrictions in terms of design. (2) Recently, the size of the stove body has progressed, and along with this, the pivot point 24 of the core up and down lever 23
The distance l from the lamp is shortened, and the wick moves greatly with a slight operation of the wick up/down lever 23, making it very difficult to make fine adjustments when trying to slightly adjust the combustion amount. (3) In the conventional configuration, once the ignition is ignited and combustion starts, combustion continues in that state. Therefore, when the heating load is small or the outside temperature is high, the indoor temperature becomes too high and the ignition is interrupted each time. You have to operate the up and down levers to reduce the amount of combustion.

As described above, the conventional kerosene heater has a modern feel in terms of operability, design, and usability.

The present invention has been made in view of these points, and is aimed at making it possible to easily adjust the mounting location of the operating section, the amount of combustion, and switch the amount of combustion.

Means for Solving the Problems In order to achieve the above object, the present invention links a wick up/down mechanism that moves the lamp wick up and down with a motor that can be reciprocated in the forward and reverse directions, and the motor is operated in the forward and backward directions according to a preset operation by a key operation. The structure includes a control circuit that moves the wick up and down by rotating it in reverse.

Function According to the present invention, the lamp wick moves up and down according to a preset operation in response to key operations, and the combustion amount can be adjusted by the vertical movement of the lamp wick. Therefore, the operating section can be mounted anywhere without being limited. Furthermore, by arbitrarily selecting the set value of the control circuit, the combustion amount can be easily adjusted from fine adjustment to wide adjustment, making it easy to use.

Example Examples thereof will be described below with reference to FIGS. 1 to 10.

1 is a lamp wick that can be moved up and down, and a rack 2 is for mounting it. 3
1 is a wick up and down mechanism for moving the lamp wick 1 up and down, which is composed of a gear 4 meshed with a rack 2 and a wick up and down shaft 5 having the gear 4 integrally. Reference numeral 6 denotes a motor capable of forward and reverse rotation for driving the core vertical mechanism 3, and is set so as to be able to mesh with and disengage from the gear 4 of the core vertical shaft 5 via a speed reduction mechanism 7. That is, although not shown, for example, the motor 6 is held by an electromagnetic plunger or the like so as to move as indicated by the arrow a. 8 is a control circuit for controlling the motor 6.

FIG. 4 shows a control circuit 8 for the motor 6, in which a microcomputer 8a (hereinafter referred to as a microcomputer) outputs a predetermined output from each output port according to input contents.

9 is the operation switch, 10 to 17 are each input key switch 6...
-2 switches, 10 is the UP key, 11 is the DOWN key, 12 is the continuous up child key 13 is the continuous DOWN key, 14 is the extinguishing key, 15 to 17 are the save keys, 15 is the "medium" setting, 1
6 is the "weak" setting, and 17 is the "1 weak" setting. Each input key switch 10 to 17 is connected to input port 1 of the microcomputer 8a.
1 to 18, and by pressing the key switch
When released by 1, an L signal is input. In response to this key input, predetermined outputs are output to output ports 01 and 02. 18.1
Reference numeral 9 indicates an upper/lower limit switch for regulating the vertical movement range of the lamp wick, and is used to prevent the lamp wick from being vertically moved beyond the normal combustion range. 20 is a motor forward/reverse drive circuit, and the output port of the microcomputer 8a, 01.02
The motor 6 is driven in forward and reverse directions according to the output.

Next, the operation of the above configuration will be explained using the block diagram of FIG. 1 and the flowcharts of FIGS. 5 to 10.

First, to explain the outline of the operation using the block diagram shown in FIG. 1, the ignition operation is performed manually, just like a conventional kerosene stove. In this state, the operation switch 9 is turned on, and the control circuit becomes operable. After that, when you select an operation key according to the desired operation and press the switch, a signal is sent from the key input circuit 21 to the key input judgment circuit 22, and after predetermined signal processing is performed, it is selected as UP or DO.
A predetermined output is supplied to the motor 6 from the WN output circuits 23 and 24, and the wick is moved up or down via the wick up/down mechanism 3 and adjusted to a predetermined position. UP, D.O.
By pressing the WN key 10.11 once, a single pulse of a predetermined width is applied to the motor 6 from the UP and DOWN output circuits 22.24, and the wick moves up and down by one step.

When the continuous up key 12 is pressed, it first outputs an up pulse of a predetermined width a preset number of times, then activates a timer A25 to stabilize combustion, and maintains that state. When the timer A25 times up, it outputs the UP pulse again and continues outputting until the upper limit switch 18 is activated. When the continuous DOWN key 13 is pressed, the DOWN key 13 is pressed until the lower limit switch 19 is activated.
Continue issuing N pulses. When the fire extinguishing key 14 is pressed, the operation switch 9 turns OFF regardless of the lower limit switch 19.
Continue to output the DOWN pulse until F. save key 1
5, 16, and 17 are valid only when the lamp wick is at the upper limit of its operating range, that is, when the upper limit switch 18 is activated, and when the lamp wick is lowered below this, it is invalid and no save operation is performed. When an arbitrary switch among the save keys "Medium", "Weak", and "Weak" is pressed, the timer 826 is activated to continue upper limit combustion for a predetermined period of time. After that, when the timer 826 times up, the DOWN output circuit 24 outputs a predetermined DOWN pulse according to the save position "Medium J,""Weak," or "Weak" to lower the wick to the predetermined save position. In other words, after the save key is ignited, it burns at the upper limit combustion position for a predetermined time to warm the room, and then automatically lowers the wick to a predetermined position to adjust the amount of combustion and prevent the room from overheating. Next, specific operations will be explained using FIG. 4 and FIGS. 5 to 10.

First, the operation switch 9 is turned ON by the ignition operation, 9...
- Power is applied to the microcomputer 8a. Oscillation is started by capacitor C2 and resistor R2, and at the same time capacitor C1,
H is applied to the Re5et port by the resistor R1, and the microcomputer starts operating. At this point, the upper limit of the combustion range of the lamp wick, that is, the upper limit switch 18, is in the ON state, so the key input checks are the extinguishing key, the DOWN key, and the continuous DO key.
Press the WN key and then the save key in this order, and if no input is received from each key, repeat the key input check described above.

When the extinguishing key 14 is pressed in this state, the input port 15 becomes H, and a DOWN pulse is output as shown in FIG. Next, check whether the operation switch 9 is ON or OFF, and if it is ON, output the DOWN pulse again.

The same check is repeated until the operation switch is turned OFF.

This puts the fire out. If you want to ignite it, you will need to manually ignite it again.

Next, when you press the DOWN key 11, as shown in Fig. 7, it first checks to see if the lower limit switch 19 is on, and if it is, no output is output, and 10... Extinguishing key, UP key, continuous. Repeat the key input check in the UP order. If it is OFF, it outputs a DOWN pulse and checks whether the DOWN key 11 has been input again.
If it is input, repeat the same operation as above. If the DOWN key 11 is not input, the extinguishing key, the DOWN key,
Repeatedly check the key inputs in the order of consecutive DOWN key, UP key, and consecutive UP key.

Next, when the DOWN key 13 is pressed continuously, as shown in Fig. 8, it is first checked to see if the lower limit switch 19 is ON, and if it is ONL, check Check the key input repeatedly according to the pattern. Lower limit switch 19 is OFF
In this case, a DOWN pulse is output and the lower limit switch O
Check N/OFF and continue outputting the DOWN pulse until the lower limit switch turns ON.

The next time the save key is pressed, the timer will start and
Check whether time T1 has elapsed as shown in FIG. If T1 has not yet elapsed, press the DOWN key,
Wait while checking the key inputs in the order of DOWN key and extinguishing key 11'\-.

If the DOWN key, continuous DOWN key, or extinguishing key is pressed during this standby, the reception of the save key is canceled and the operation of the pressed key input is followed. No key input is accepted during T1, and when T1 has elapsed, the next key pressed among the save keys is checked. First, check whether the save (middle) key has been pressed, and if not, then check whether the save (weak) key has been pressed. If not, check whether the lower limit switch 19 is on, and turn it on. If not, it is determined that the save (weak) key has been pressed, outputs a DOWN pulse, and continues to output the DOWN pulse until the lower limit switch 19 is turned on, lowering the wick to the lower limit position of the combustion range and performing weak combustion. . In addition, in the above operation, when the save (middle) key and the save (weak) key are pressed, a predetermined number of DOWN pulses are output to lower the wick to the position corresponding to each combustion state, and then the extinguishing key and the DOWN pulse are output. Key input is checked repeatedly in the order of key, continuous DOWN key, UP key, and continuous UP key, and waits. Here, press the extinguish key, DOWN
The operation when a key or a consecutive key is pressed is as described above, so a description thereof will be omitted.

Next, when the up key 10 is pressed, first check whether the upper limit switch 1B is on, as shown in Fig. 9, and if it is, perform the check pattern 3 while keeping the motor OFF. Do it repeatedly. If OFF, u
It outputs a p pulse and checks again to see if the UP key has been pressed. If it has been pressed, the above operation is repeated. If not pressed, the 0 check pattern is repeated.

Next, when the UP key is pressed continuously, as shown in Figure 10, first the UP pulse is output a preset number of times,
Activate timer B26 and wait for time T2 to elapse. This is an operation to eliminate the standing flame that occurs when the wick is raised rapidly. While the timer day is counting, key inputs are checked repeatedly in the order of the extinguishing key, the DOWN key, the continuous DOWN key, and the UP key, and if there is any key input during this time, the timer date is checked.
Heh.

button and follow the keystrokes. If time T2 has elapsed without any key input, first, the upper limit switch 18 is turned ON.
Check if it is ON, and if it is ON, repeat the check pattern 3 in step 5 with the motor OFF.

If it is OFF, it outputs an up pulse and closes the upper limit switch 1B.
Continues until turns ON. This raises the wick to the upper limit of the combustion range, resulting in continuous strong combustion. Thereafter, in accordance with the operations described above in response to each key input, the motor is rotated forward and reverse, and the wick is moved up and down via the wick up and down mechanism to adjust the combustion amount according to preference.

The above-mentioned embodiment is shown as an example for explaining the present invention, and any structure may be used as long as it achieves the purpose and effect of the present invention. For example, the core vertical mechanism, etc. It may also be a lever type.

Effects of the Invention As clarified in the examples above, the kerosene stove of the present invention can automatically adjust the combustion amount by operating the key input according to preference, and is easy to use. becomes significantly better. In addition, since the operation section can be configured with only a key switch, it can be installed at any location that is easy to operate, and there are no restrictions in terms of design. Moreover, as explained in the example,
If the vertical movement of the lamp wick is restricted within the normal combustion range, the combustion amount will not be adjusted beyond the normal combustion range, resulting in high safety.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a kerosene stove according to an embodiment of the present invention, Fig. 2 is a schematic diagram of the main parts of the kerosene stove, Fig. 3 is an explanatory diagram of the same operation, and Fig. 4 is a control circuit diagram of the same. Figure 5~
FIG. 10 is a flowchart for explaining the same operation, and FIG. 11 is a sectional view showing a conventional kerosene stove. 1... Lamp wick, 3... Wick up and down mechanism, 6.
...Motor, 8...Control circuit, 10-1
7. River... Operation key switch, 18.19...
Upper and lower limit switch, 22...Key input judgment circuit,
23...up output circuit 24...--2...
DOWN output J circuit. Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 YTZ ship limit γ 'L, / Fig. 11 1 Ll+)+S+b"fya, hl i
Sentence 71 Otsu 6 Doq g3

Claims (5)

[Claims] (1) A lamp wick that can move up and down, a wick up and down mechanism that moves the wick up and down, a motor that can rotate forward and backward to drive the wick up and down mechanism, and the motor can be rotated according to preset operations according to key input. A kerosene stove consisting of a control circuit that rotates in reverse to move the wick up and down. (2) The control circuit has a key input determination circuit that determines the content of the key input, and an up/down output circuit that outputs up/down outputs and drives the motor based on the output from the key input determination circuit. Oil stove as described in Scope 1. (3) The key input judgment circuit has an upper limit switch that detects the upper limit position of the lamp wick and a lower limit switch that detects the lower limit position, and is designed to move the lamp wick up and down within the normal combustion range regulated by the upper and lower limit switches. The kerosene stove according to claim 2. (4) The key input is a pulse input consisting of a non-latch type switch, with an up key that raises the wick a predetermined dimension with one pulse, a down key that lowers the wick a predetermined dimension, and an upper limit switch that controls the wick. The continuous up key raises the wick to the upper limit position in a preset sequence, and the continuous down key lowers the wick to the lower limit position regulated by the lower limit switch.
The kerosene stove according to claim 2, comprising a plurality of save keys for lowering the heater to a preset dimension. (5) The oil stove according to claim 4, wherein the save key can be accepted only when the upper limit switch that detects the upper limit position is on.