JPS61168400A - Iron - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an iron provided with operating means for setting the temperature of the base surface of the iron.

Conventional technology Traditionally, irons equipped with operating means for setting the temperature are
Most of them displayed the set temperature using a lamp.

Problems to be Solved by the Invention However, with the above-mentioned conventional ironing method, when the ironing machine sometimes loses heat and the base temperature temporarily drops, the lamp changes from being on to being off, or from being off to being on. Despite the temperature drop, the display changed, causing confusion during ironing and causing problems in actual work.

The present invention solves these conventional problems and provides an iron that can reliably check the appropriate temperature.

Means for Solving the Problems In order to achieve the above objects, the iron of the present invention includes a heating element that heats the base of the iron, an operating means that sets the temperature of the base, and a temperature detection element that detects the base temperature. ,
a temperature control means that is operated by the output of the operating means and the temperature detection element and controls energization to the heating element via the power control means to maintain the temperature of the pace at a set temperature; an appropriate temperature determining means to be set; an appropriate temperature notifying means for notifying the appropriate temperature; the appropriate temperature notifying means is held in accordance with the appropriate temperature determination by the appropriate temperature determining means; and the appropriate temperature notifying means is held in response to switching of the set temperature of the operating means. and latch means for releasing the latch.

Operation With the above configuration, the iron of the present invention notifies the iron with the appropriate temperature notification means when the pace temperature reaches the appropriate temperature, latches with the latching means, and maintains the latched state until the temperature setting is changed by the next operation means.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 indicates an operating means for setting the temperature of the base surface of the iron, and reference numeral 2 indicates an operating means for setting the temperature of the iron base surface. The appropriate temperature determination means 3 is operated by the output of the operating means 1 and a temperature detection element to be described later, and controls the power supply to the heating element 5 via the power control means 4 to maintain the temperature of the base surface at the set temperature. Control means, 6 a temperature detection element for detecting the temperature of the base surface, 7 a latch means, and 8 an appropriate temperature means for notifying an appropriate temperature.

The latch means 7 described above holds the appropriate temperature notification means 8 in accordance with the appropriate temperature determination by the appropriate temperature determination means 2, and releases the holding of the appropriate temperature notification means 8 in response to switching of the set temperature of the operating means 1.

Note that 19A and 19B are set temperature display means and current temperature display means, respectively, and constitute a display device to be described later.

Next, in FIG. 2, 9 is the iron body, 10 is the pace of the iron, and 11 is an appropriate temperature determining means 2. A control device constitutes the temperature control means 3 and the latch means 7, etc.; 12 is a select switch constituting the operation means 1; and 13 is a sounding body constituting the appropriate temperature notification means 8. In this embodiment, the sounding body 13 is used to notify the appropriate temperature, but it goes without saying that the same effect can be achieved even if a display element such as a light emitting element is used.

Next, an example of the configuration of the control device 11 is shown in FIG.

14 is a microcomputer, CPU and ROM.

A one-chip microcomputer consisting of RAM, input/output ports, etc., is used to determine the appropriate temperature.2. It constitutes a temperature control means 3 and a latch means 7. Reference numeral 15 denotes an A/D converter, which is connected to convert the signal from the temperature detection element 6 into a double code and input it to the input hoard of the microcomputer 14.

Reference numeral 16 denotes a transistor for driving the power control means 4.

The base terminal of the transistor 160 is connected to the output port of the microcomputer 14. Reference numeral 17 denotes an AC power source, and when the transistor 16 is driven, the power control means 4 becomes conductive, and power is supplied from the AC power source 17 to the heating element 5. 18 is a transistor whose base terminal is connected to the output port of the microcomputer 14 and whose collector terminal is connected to the sounding body 13; The structure is such that the sounding body 13 is driven. A display device 19 has the functions of a set temperature display means 19A and a current temperature display means 19B, and is composed of four light emitting diodes 19a to 19d. Third
In the illustrated embodiment, four light emitting diodes 19a to 1sd
Although the display device 19 is configured with the following, there is no problem with four or less or four or more display elements, and display elements other than light emitting diodes are also suitable. A select switch 12 is connected to one of the input ports of the microcomputer 14, and by pressing the select switch 12, the temperature setting of the microcomputer 14 can be sequentially changed back. 2
0 is a DC power supply, which is supplied to the entire control device 11.

Next, the display function of the display device 19 will be explained.

In FIG. 3, the light emitting diode 19a of the display device 19 is used to display "OFF" which does not supply any current to the heating element 5, 19b is used to display the temperature setting to set the base surface temperature of the iron to 160°C, and similarly 19c is used to display the temperature setting to set the base surface temperature of the iron to 160°C. I BO'Cv1sd 200
The set temperature is displayed in °C. The set temperature is displayed by lighting up each light emitting diode. For example, if the iron's base side is set to 2oO°C, only the light emitting diode 19d is lit (continuous lighting).
become. Furthermore, the display device 19 also displays the temperature of the base surface of the iron. The display is such that the light emitting diode 19a blinks when the base surface temperature is less than 160°C. Similarly, the light emitting diode 19b has a base surface temperature of 1600C or higher1.
When below 70°C, 19c is above 170°C 190
The 1sd flashes when the temperature is below 190°C, and the current temperature can be determined by checking the flashing light emitting diode. When the set temperature is reached, only the corresponding light emitting diode will turn on.

Therefore, the set temperature is indicated by the light-emitting diode that is lit, the current temperature on the base surface is indicated by the light-emitting diode that is blinking, and when the set temperature is reached, only the corresponding light-emitting diode is indicated by being lit. Become. Next, a series of operations of the iron configured as described above will be explained using FIG. 4.

21 is a power-on step. When the power is turned on, the display device 19 first displays a setting of "off" in step 22. In step 23, select switch 1
Check whether 2 was pressed. Select switch 12
If the button is pressed, the process moves to step 24 to update the settings. Tip 9: If it was initially set to OFF J, pressing the select switch 12 once will set it to 160°C, pressing it once again will set it to 180°C, and then repeat this to set it to 2oO°C. If the select switch 12 is pressed at this time, the setting will be updated to "off" again. Step 26 is a process of releasing the latch means 7 when the appropriate temperature is reached. That is, by pressing the select switch 12, the setting is updated and it is determined that the base temperature has not reached the set temperature. Step 26
determines whether the setting is "off" or something else. If it is not set to "off", the process moves to step 27 and lights up the light emitting diode corresponding to the set temperature. In other words, if the temperature is set to 160°C, the light emitting diode 19b is turned on,
If it was set to 180°C, the light emitting diode 19
Turn on c. In step 28, the temperature of the base of the iron is determined. A/D temperature signal of temperature detection element 6
The converter 15 reads the binary code and determines whether the temperature of the base is 1 degree. Step 29
compares the current temperature of the base obtained in step 28 with the set temperature determined in step 24. If the current temperature is below the set temperature, the process moves to step 30 and the transistor 16 is driven to make the power control means 4 conductive. Therefore, power is supplied to the heating element 6 from the AC power source 17, and the temperature of the base increases. If the current temperature exceeds the set temperature in step 29, the process moves to step 31. In step 31, the driving of the transistor 16 is stopped and the power control means 4 is brought into a non-conductive state. Therefore, power is no longer supplied to the heating element 5. If it is set to "off" in step 26, the process moves to step 32 [the light emitting diode 19a corresponding to "off" is turned on, and then step 3
1, and the power to the heating element 5 is stopped. Step 3
Step 3 determines whether the current temperature of the base has become equal to the set temperature, that is, whether the appropriate temperature has been reached. When the appropriate temperature has been reached, the process returns to step 23. If the temperature has not yet reached the appropriate temperature, the process moves to step 34. In step 3-, the appropriate temperature determining means 2 determines whether the current temperature has reached the set temperature, that is, whether it is an appropriate temperature. When the temperature has reached the appropriate temperature, the process moves to step 35, where the appropriate temperature notification means 8, that is, the sounding body 13, issues a notification that the appropriate temperature has been reached, and the latch means 7 latches that the appropriate temperature has been reached. Therefore, unless the settings are updated, the appropriate temperature notification will be performed only once. This latch release of the latch means 7 is performed in step 26, that is, when the select switch 12 is pressed and the set temperature is updated. The notification of reaching the appropriate temperature is performed by applying a rectangular wave signal to the transistor 18 and driving the sounding body 13. The notification is made for several seconds, and after the notification, the process returns to step 23. If the current temperature has not reached the set temperature in step 34, the process returns to step 23 after flashing the light emitting diode corresponding to the current temperature in step 36. This completes the series of operations.

Next, FIG. 5 shows the mutual relationship between the base temperature of the iron and the select switch 129, the sounding body 13, and the display device 19. In Fig. 6, period T1 is a period in which the base temperature is rising by setting it to 200°C and the temperature is controlled at 200°C, and period T2 is a period in which it is set to ``off'' and the base temperature is falling. , Period T3 is a period in which the temperature is set at 160'C, the base temperature is lowered, and the temperature is controlled at 160'C.

During period T1, the light emitting diode 19d is lit to indicate that the temperature is set to 200'C. The current temperature is displayed by blinking the light emitting diode 19a until the base temperature rises and the current temperature reaches 160°C (time t1). Furthermore, the base temperature increases to 150°
When reaching C (tl), the light emitting diode 19a goes out and the light emitting diode 19b blinks. When the temperature further increases and the base temperature reaches 170'C (t2), the light emitting diode 19b goes out and the light emitting diode 19c blinks. Next, the blinking display of the current temperature will indicate the set temperature of 200.
The light emitting diode 19c continues blinking until the temperature reaches 0.degree. C. (t3). The base temperature has reached the set temperature of 200°C (t3), the light emitting diode 1 that has been displaying the current temperature
The flashing of 9c goes out, and only the light emitting diode 1sd, which displays the set temperature of 200'C, lights up continuously, and it can be determined that the base temperature has reached the appropriate temperature. Also at this time, sounding body 1
3 will sound for a short time to notify you of the appropriate temperature. Further, the latch means 7 operates, and unless the select switch 12 is pressed to change the set temperature, the current temperature is not displayed and no notification operation is performed even if the temperature fluctuates.

Between time t3 and t4, the temperature of the heating element 6 is controlled at 200'C, and the light emitting diode 19d corresponding to 200'C is
continues to light up. Next, at time t4, the select switch is pressed to change the set temperature from 200'C to "off". At this time, the light emitting diode 19a corresponding to "off" lights up,
The current temperature is not displayed by flashing light emitting diodes. Also at this time, the latch is released.

At time t6, press the select switch 12 and change the set temperature to "
When changing from off to 160°C, at this time 160°C
The light emitting diode 19b corresponding to K lights up. and,
The light emitting diode 19d blinks until the base temperature decreases and reaches 190'C, and when the base temperature reaches 190'C (t6), the light emitting diode 1sd
goes out, and the light emitting diode 19c starts blinking. The base temperature drops further from 190'C, and the set temperature is 16.
The light emitting diode 19c continues to blink until it reaches 0°C (t7), and when it reaches 160°C, the light emitting diode 1
The blinking of 9c is turned off, and only the light emitting diode 19b corresponding to 160'C is lit. When the temperature reaches 160°C (t7), the sounding body 13 notifies the appropriate temperature, and the latch means 7 operates, and unless the set temperature is changed by the select switch 12, the current temperature is displayed and the appropriate temperature is notified. will not be carried out.

The above example can be summarized as follows.

However, the current temperature one level before the set temperature is displayed until the set temperature is reached.

Effects of the Invention As is clear from the above embodiments, the iron of the present invention is very easy to use because the appropriate temperature notification means notifies you when the temperature of the base of the iron reaches the appropriate temperature. However, since the latched state is maintained until the temperature setting is changed by the next operation means, even if the temperature of the pacer temporarily decreases, the appropriate temperature notification does not change accordingly, and the actual ironing can be done easily. It is very effective.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the relationship between parts of an iron showing an embodiment of the present invention, FIG. 2 is a partially cutaway side view showing the configuration of the iron, and FIG. 3 is an electric circuit diagram of the iron. FIG. 4 is a diagram showing the flow of the operating procedure of the iron, and FIG. 5 is an explanatory diagram regarding the set temperature display, current temperature display, and appropriate temperature notification. 1... Operating means, 2... Appropriate temperature determining means, 3.
... Temperature control means, 4 ... Power control means,
6... Heating element, 6... Temperature detection element, 7...
... Latch means, 8... Appropriate temperature notification means. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 Figure 3

Claims (1)

[Claims] A heating element that heats the base of the iron, an operating means that sets the temperature of the base, a temperature sensing element that detects the temperature of the base, and a power control means that operates based on the outputs of the operating means and the temperature sensing element to generate heat. a temperature control means that controls energization to the body and maintains the temperature of the base at a set temperature; an appropriate temperature determination means that sets a temperature according to the temperature setting of the operating means;
An iron having an appropriate temperature notifying means for notifying an appropriate temperature, and a latch means for holding the appropriate temperature notifying means in accordance with the appropriate temperature determination by the appropriate temperature determining means and releasing the holding of the appropriate temperature notifying means in response to switching of the set temperature of the operating means. .