JPS61280896A - Electric 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 (a) Industrial application field The present invention relates to an electric iron C having a base posture monitoring means.
:Related.

(b) Conventional technology If an iron is left unenergized for a long time while in use, or if you forget to turn it off, it often becomes hot and causes a fire. An iron was invented in which the heater heating circuit is closed by lifting the iron, and then when the iron is released, the timing device starts measuring time and shuts off the heater heating circuit after a predetermined period of time. Therefore, after the timing device has measured a predetermined time (:
The heater heating circuit is closed by lifting the iron regardless of the passage of one hour after the heater heating circuit is quickly disconnected. It is difficult to distinguish between the state in which the temperature regulator is removed and the state in which the temperature regulator is turned off. It was a long time coming.

(c) Problems to be Solved by the Invention The present invention takes the above-mentioned drawbacks into consideration and provides an electric iron with improved safety and ease of use.

B) Means for Solving the Problems The present invention is an electric iron equipped with posture monitoring means, time measurement means, control means, and notification means, and when the iron is not in use for a predetermined period of time [: heating means] When the iron is energized at the appropriate place and the iron is used again in state C (when the iron position is changed) CC output automatically: The user (second This is to inform.

(e) Effect This is because the present invention is constructed as described above.

Notification means C: It is possible to notify the user of the reusable state.

(f) Example Embodiments of the present invention will be described based on the drawings.

FIG. 1 is a partial sectional view of the electric iron of the present invention.

In the figure, (1) is the base, (2) is the base C: a buried heater (heating means), and (3) is the vaporization chamber formed in the base (1).

(4) is a negative characteristic thermistor closely fixed to the base (1) in the vicinity of the vaporization chamber; (5) is a steam hole that is straddled on the bottom of the base (1) and communicates with the front aeration chamber (3); ,
(6) is an iron cover provided above the base (1), and is provided with a cylindrical communication member (7) made of heat-resistant rubber that communicates with the vaporization chamber (3). (8) is the upper surface l of the iron cover (6): the fixed handle;
Two-bar shaped and hollow grip part (BA) t- with lower part C
: It has a guide part (8B), and a support part (80) t- is formed in which the rear part≦:mold part (8A) and guide part (8B) are connected. (9) is a mercury switch placed in the grip part (8A), and is fixed with the contact side slightly tilted upwards from the hooking surface C of the base (1), when the iron is kept stationary in a horizontal state. The contact is opened, and the contact is closed when the iron is moved (in the state of ironing).αC is the contact between the iron cover (6) and the guide part (8B).
；Removable (: It is a tank that is housed and stores water, and the bottom surface is equipped with the steam nozzle (Le
has been established.

FIG. 2 is a perspective view of the digging part (8A), (12A),
(12B) is U for selecting the desired temperature of the base (1);
P and DOWN switch, (13A).

(13BJ, (15C), (13DJ is the UP or D
OWN switch ≦: Displays the desired temperature of the base (1) selected from 1 high 1. These are LEDs for displaying 'Middle 1' and 'Low - 11 Off' modes.

Figure 3 is a schematic electrical circuit diagram, where I is an AC power supply;
(151 is a DC power supply circuit, Le is an initial circuit, which outputs a positive pulse when the AC power supply α4t is turned on. lη is a setting means for setting the desired temperature of the base (1); UP and DOWN switch (12A)
, (12B), connect the UP switch to UP input terminal 1, and DOWN switch (12B) to t-DOWN input terminal ≦
Two connected UP, DOWN counters (17AJ, a decoder (17B) that decodes the output of the counter, and the initial circuit (the UP, DOWN counter C17A in synchronization with the rising edge 1 of the output signal of Le) R input terminal C: first one-shot circuit (17C) that gives a positive pulse
). The relationship between the outputs of the UP and DOWN counters (17A) and the outputs of the decoder (17B) is set as shown in Table 1. And UP-DOW
N counter (17A) table 1> When the UP switch (12A) is closed, its output changes in the same way as storms 1 to 4 in the table, and the DOWN switch (12A) is closed.
When B) is closed, its output changes toward Na4~1 in the % table, and cR input terminal C; when a positive pulse is given, its output changes to Arashi No. 1 in the table: Reset (two-pronged). (L8 is a posture monitoring means for monitoring the posture of the base (1), and the mercury switch (93t-first bridge circuit (18A) on one side and the connection point of the bridge circuit), ( The first comparison circuit (18B) that compares the output of
). The comparison circuit is a mercury switch (
9) when the contact is closed, t[, level signal t-,
When it is open, it outputs a %He level signal. g11 AND circuit which inputs the output of the first comparator circuit (18B) and the output of the Q output terminal of the flip syrup (26D), which will be described later.

The output of the first AND circuit is connected to the S input terminal, and the output of the first AND circuit is connected to the R through the inverter I2υ.
When input is input from the input terminal and the first AND circuit α■ outputs a 1H level signal, it starts timing operation and clocks in for a predetermined period of time (3 minutes).
After the lapse of time, a 1H level signal is output from the O output terminal, and when the first AND circuit 4 outputs a 1L level signal, it is reset. is the second time measuring means, and the first time measuring means is
The output of the O output terminal of the clocking means 4 is inputted from the 1kS input terminal, and the output of the O output terminal of the first clocking means 4 is inputted from the R input terminal via the inverter (toward), so that the first clocking means (1)
When the level signal is output, the timing operation f'1it- starts and after a predetermined time (1 minute) has elapsed, the 1H level signal is output from the 0 output terminal, and the first time measurement means 2 outputs the %Lt level signal. It will be reset when it does. The capacitor is the initial circuit (1B, UP and DOWN switch (1B)
2A), (12B), the first OR circuit which inputs the output of the second timer means, the control means, and the decoder (17B).
) and a parallel circuit of switching resistors (R1) t (R2) e (as) connected to the 01°Ox and Os output terminals of the circuit, respectively, and a second bridge circuit (25A) having each of the thermistors (4) as one side. , a second comparator circuit (25B) that compares the outputs of the connection points (c) and 2) of the bridge circuit; 2 AND circuit (25C) and the output of the AND circuit (transistor (25D) that turns ON and OFF from 2)
From the ON and OF'Fc of the transistor, the heater (2)≦; the normally open relay contact (25E) connected in series.
It consists of a relay coil (25F) that opens and closes. The relationship between the resistance values of the switching resistors (R1], (R8), and (R3) is as follows: switching resistor (R1) < switching resistor CRY) < switching resistor (FL3). 1 high (180°C) 1% 1 medium (140°C) 1% 1 low (100°C) 1.For example, the 01 output terminal of the decoder (17B) outputs a %HII level signal. The output voltage at the connection point (c) and the output voltage at the connection point (b) become the same when the thermistor (4) detects 180°C, and at this time the output of the second comparison circuit (25B) is % 1L# level signal from HII level signal 8C: Change 5; Becomes. ■ is a temperature guarantee means, which outputs positive pulses in synchronization with the rise and fall of the output signal of the second comparator circuit (25B). 9J2 one-shot circuit (26A).

A third one-shot circuit (26B) outputs a positive pulse in synchronization with the rise of the output signal of the first OR circuit (2).
), a delay circuit (2tSC) that delays the output of the one-shot circuit by about 9 seconds ((about L1 seconds), and a delay circuit (2tSC) that delays the output of the second one-shot circuit (26A) from the S input terminal to the delay circuit (260). The output from the ftR input terminal is input, and the output from the Q output terminal is input to the first AND circuit (one input terminal C of L9:
It consists of a flip-flop (26D) that provides - is a notification means, the display LED (13A), (1
3B).

(13C), (13D), and the outputs of the 01 to 03 output terminals of the decoder (17B) are input in order (2) from one input terminal, and the output of the first clock means (4) is inverted. The 6th to 5th AND circuits (27A
), (27B)% (27C), the 04 output terminal of the Tecoder (17B) and the second input terminal which inputs the output of the first time measuring means (A).
OR circuit (27D), 'H' for Cl3 seconds, 'L'i0
．． 5 seconds no timing jino timing 1 oscillation circuit (27E)
and a second oscillation circuit (27F) which oscillates 'H' at a timing of α2 seconds and 'L' at a timing of 0.2 seconds, based on the outputs of the first time measuring means (7) and the flip-flop (26D). , the DC power supply circuit C1!19. No. 27E oscillation circuit engineer
] and I! One output range in two oscillation circuits (27F);
a switching circuit (27G) for switching, and a sixth to eighth AND circuit (27H) that operates based on the outputs of the third to fifth AND circuits (27A) to (27C) and the switching circuit (27G);
J, (27I), (27J) and % the second OR circuit (2
7D) and a ninth AND circuit (27K) that operates based on the output of the switching circuit (27G), and the sixth to ninth AND circuits (
27H)~(27KJ output(2) based on said LED(
13A) ~ (13D)! Inverter for driver (27L), (27M), (27N) (270)
It consists of. Therefore, the switching circuit (27G)
are the 10th to 13th AND circuits (27G1), (27Gri, (27G3), (27G4) and the 3.4th OR circuit (27G1),
7G5) and (27Cg), and its output state is C: as shown in Table 2.

Table 2. Operation ζ;
1 (17C month; given and output from this one-shot circuit (17C) fL nine positive pulses UP-DOWN
Counter (17A) l-4 is counted, so this UP, D
The OWN counter (17A) is reset and the decoder (
17B) outputs a 1H level signal from the 04 output terminal C:. At this time, the voltage at the connection point (c) maintains zero volts regardless of the resistance value change of the thermistor (4), so the second comparator circuit (25B)
The L level signal is outputted to the second AND circuit (25C) (;, therefore, the transistor (25D) is turned off.
Then, the relay contact (25K) is opened and the heater (25K) is opened.
) is not started. Further, since the positive pulse of the initial circuit αe is applied to the sixth one-shot circuit (26B) via the first OR circuit example, the seventh circuit hoop C260) is reset. At this time, the Q output terminal of flip 7 stomach tube (26D) is a 1L level signal,
Q output terminal) outputs a t'H' level signal, and the first timer (7) outputs a 1L level signal while maintaining the reset state regardless of the output 6 of the first comparison means (18B). The nine-way switching circuit (27G) explained in Table 2 is the first
Mm times wt (27E) output ('H'ka 5 seconds, 'L'
Alternate output at tcL5 seconds timing] (two switching,
'off 1 display LED (13I)) is connected to this first oscillation circuit (
27E) is made to blink in synchronization with the output. Next, close the UP switch (12A) to 1, for example, the set temperature is all 1 high (180℃) 1 (a state in which 1H level signal is output from the 01 output terminal of the decoder (17B)) ) is sufficiently lower than 180℃, so the 1%2 comparison circuit (25B) is the second AND circuit (25C).
and the second one-shot circuit (26A) provides a 12% He level signal. At this time, the second one-shot circuit (26A) gives a positive pulse to the S input terminal of the Frilob flop (260), so the clip frog (26D) is set and outputs a 1H level signal from the Q output terminal.
Due to the blockage of the UP switch (12A), the fifth one-shot circuit (26B) and the delay circuit (26C) are activated, and a positive pulse is given to the R input 21 after a slight delay, so that the UP switch (26D) is immediately turned on. is reset and a 1L level signal is output from the Q output terminal. Therefore, the first timer means (2) maintains the reset state and outputs a 1L level signal regardless of the output of the first comparison means (18B) (2), and energization to the heater (2) is started. with c
'The high 1 display LED (15k) is connected to the first oscillation circuit (27
E) Output C: Blinks synchronously to notify that the temperature is not suitable C: becomes. Then, when the temperature of the base (1) rises and the thermistor ζ (4) detects 180°C, the output of the second comparison circuit (25] 3) changes from the %H# level signal to 1L.
# Since the level signal changes to 9, the heater (2) is quickly de-energized, and the second one-shot circuit (26A) applies a positive pulse to the S input terminal of the flip-flop (26D) and outputs the current to the flip-flop (26D). 26D) t-set.

Therefore, the switching circuit (27G) switches to the output of the DC power supply circuit 4, and lights up the high 1 display LED (i3A) to notify that the temperature is appropriate. From now on, Kai 52
Comparison circuit (25By crosses 1800 and sHe, @
Alternately output the L# level signal, and then output (2)
The temperature of the base (1) is controlled to approximately 180°C by starting or stopping the energization to the flip-flop (26
D) is W! The reset state is maintained until the 1H level signal is not output from the 11-OR circuit (2).

After setting the desired temperature, the thermistor (4) detects the set temperature for the first time, and then the first and second timing means (4)
), ■ indicates the position monitoring means (variable output 1 of 18; therefore, the timing operation is started g2. In this state, if the iron is left in a horizontal position, the contact of the mercury switch (9) will open, so the % WS1 comparison circuit (18B) is %Ht
The level signal 9t is given to the first timekeeping means (A) via the first AND circuit CLI (;, and the first timekeeping means (A) starts the timekeeping operation t-. After this, in order to use it (- move the iron When the contact of the mercury switch (9) is closed, the first comparator circuit (18B) outputs a 1L# level signal, so the first timer (■) resets the timer contents.
When the contact of the mercury switch (9) is opened again, timing starts again, but if 3 minutes pass without the iron being moved as described above.

The g111 clock means (1) outputs the %H level signal, the heater (2) outputs the output signal 8 of the WJ2 comparison circuit (25B), and the current is cut off regardless, and the second clock means outputs the clock. Start operation. Also, at this time, 9F13 to fifth AND circuits (27A) to (27C) output the 1L# level signal, and! The 2-OR circuit (27D) outputs a %HII level signal, and the switching circuit (27G) outputs the output of the second oscillation circuit ('H' alternately at a timing of 12 seconds and 1Ll'fcα2 seconds) as shown in Table 2. ), the off 1 display LED (13D) is the output C of the second oscillation circuit (27F);
Blinking in synchronization (:), which indicates that this state is different from the normal 1-cut-1 state.
:Within 1 minute in the alarmed state l:To use again As a result, the first timekeeping means (2) has its timekeeping content reset (: %Ht level signal to 1L level signal (27 output changes, the second timekeeping means also resets its timekeeping content, and the control means ■ is the output of the setting means clη (
1 high 1 state] (2) The control of the heater (2) is started again. At this time, the flip-flop (26D
) is in the set state, so the 'high 1 display LED (13
A) lights up to notify you that the temperature is appropriate. Also, 1
In order to use it again after a minute has passed (= if the iron is moved, as in the above case, the control means (■) starts controlling the heater (2) again from the output of the setting means αη (1 high 1 state). The flip-flop C260) is set in the reset state by the output of the second timer (2G, a is the output C of the first comparator circuit (18B), so the reset state is maintained regardless of the output C of the first comparison circuit (18B). Then, the 1-high 1 display LED (13A) blinks in synchronization with the output of the first oscillation circuit (27F) to notify that the temperature is not suitable.The subsequent operation is as described above. The operation after the state is the same.

1 In the present invention, the timing time of the second timing means is set to 1 minute, but this means that the temperature of the base (1) can be used as long as it is within 1 minute based on the heat capacity of the base (1) that is normally used. This is determined based on the premise that the temperature does not deviate from the temperature range, and can be changed depending on conditions such as the material of the base (1) and the destination. In addition, the present invention can be applied to the normal one-cut one-state (decoder (
The state in which the % Ht level signal is being output from the 04 output terminal of
For example, in the former state, the display LED (13D) is turned on, and in the latter state, it blinks (: the user can easily distinguish between the latter states). All you need to do is to have a notice so that you can understand it.

[G] Effects of the Invention As described above, the present invention quickly cuts off the electricity to the heating means (second step) when the non-use state continues for a predetermined period of time, and when the heating means starts to be used again in that state ( When changing the position of the iron] (2 automatic f two-pronged setting means It is possible to provide an electric iron with the same usability as above.

[Brief explanation of drawings]

! FIG. 1 is a partially cutaway diagram of the electric iron of the present invention. Fig. 2 is a perspective view of the grip part (8A), and Fig. 3 is a schematic electrical circuit diagram. (1) - Base, (2) - Heating means, frame...
Setting means, (18... Attitude monitoring means, (4)... Timing means, C51... Control means. Scream... Notification means

Claims (1)

[Claims] (1) A base, a heating means for heating the base, a setting means for setting a desired temperature of the base, an attitude monitoring means for monitoring the attitude of the base, and a timekeeping operation based on the variable output of the attitude monitoring means. or a first step of controlling the heating means based on the output of the setting means until the timekeeping means measures a predetermined time using the output of the timekeeping means and a timekeeping means for resetting the timekeeping contents; , a control means for executing a second process of cutting off the electricity supply to the heating means after counting a predetermined time; and a notification for notifying that the control means is executing the second process based on the output of the time measurement means. Electric iron with means and.