JPH0448077B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a cordless iron for general household use.

Conventionally, as shown in FIG. 4, this type of cordless iron has a base 2 heated by a heater 1, a vaporizing chamber 3 provided in the base 2, and a tank disposed above the base 2. 4. An iron main body 7 having a water channel 5 for supplying water in the tank 4 to the vaporization chamber 3 and a power supply terminal 6 connected to the heater 1, an electrode 8 connected to the power supply terminal 6, and an iron. It consists of a stand 10 consisting of a placing part 9 on which the main body 7 is placed, and the iron main body 7 has a base 2 that holds the dripping valve 11 in a closed state when the temperature is below the set temperature, and when the temperature is above the set temperature. The structure includes a valve device that automatically opens the dripping valve 11 when the dripping valve 11 is in the position.

Problems to be Solved by the Invention However, with such a structure, if the iron main body 7 is removed from the stand 10 and used while producing steam without power being supplied to the iron main body 7, the water in the tank 4 may leak. It is supplied to the vaporization chamber 3 and steam is generated, but at this time, the base 2 is deprived of vaporization heat and its temperature gradually decreases, and when it reaches a temperature below which steam cannot be generated, the drip valve 11 is closed, the supply of water in the tank 4 to the vaporization chamber 3 is stopped, and water is prevented from leaking through the fabric. However, in order to generate steam next, the base In order to raise the temperature of iron 2, it is necessary to place the iron body 7 on the stand 10 and wait until the dripping valve 11 is opened again, which significantly impairs ironing efficiency.

The present invention solves these conventional problems and improves the usability and work efficiency of a cordless iron.

Means for Solving the Problems In order to solve the above conventional problems, the present invention provides a base that is heated by a heater and includes a vaporization chamber, a tank that supplies water to the vaporization chamber via a waterway, and a tank that is heated by a heater and includes a vaporization chamber. An iron body equipped with an on-off valve disposed in the middle, a thermally responsive member that is linked to the temperature of the base and opens the on-off valve when the temperature exceeds a predetermined temperature value, and a temperature detection means that electrically detects the temperature of the base; Controls energization of the heater in response to output signals from the placing part of the iron body, the power supply means for the heater, and the temperature detection means, and also stores temperature drop characteristics of the base over time from the time when the iron body is removed; and a power supply stand equipped with a temperature control means that activates the notification means when a predetermined time has elapsed, and when the base temperature at the elapse of the predetermined time when the notification means is activated is t ₂ , the thermally responsive member closes the on-off valve. When the base temperature is t ₁ , t ₂ > t ₁ is set.

Effect: According to the above means, when the iron body is used, the notification means is activated before the base temperature reaches a state where it is incompatible with generating steam, and notifies the operator of the necessity of power supply.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

In FIGS. 1 to 3, reference numeral 12 denotes a base in which a heater 13 is embedded, and a vaporizing chamber 14 and a steam hole 15 are formed therein. 16 is a base lid that covers the vaporization chamber 14; 17 is a cover that covers the entire base 12 from above; 18 is a handle installed above the base 12, and a tank 19 is formed inside.
20 is a bottom plate defining the tank 19, and has an opening 20a.
A water passage forming member 21 is fixed to the back surface of the water passage forming member 21 to form a water passage 22. 23 is base 1
This is a recess formed at the outer rear part of the vaporization chamber 14 of No. 2, and a thermally responsive member 24 such as a reversible bimetal that senses the temperature of the base 12 and performs reversal operation is disposed within this recess 23 . Reference numeral 25 denotes a lid that covers the recess 23, and a pin 26 that moves up and down as the thermally responsive member 24 reverses is passed through the center of the lid. 27
is a valve device having a valve shaft 28a integrally provided with an on-off valve 28 for opening and closing an opening 20a at the upper part,
The spring 30 passes through the opening 20a and the opening 29 of the water passage forming member 21 located below the opening 20a.
As a result, the on-off valve 28 is urged downward to close the opening 20a. 31 is a flexible gasket that covers the lower surface of the opening 29. 32 is a drip nozzle provided in the water passage forming member 21, and is connected to the vaporization chamber 14 via a packing 33. 34
is an opening/closing rod that opens and closes the opening of the dripping nozzle 32; when the opening/closing button 35 at the upper end is manually pressed downward, the opening/closing rod 34 is lowered and closes the opening of the dripping nozzle 32. 36 is a temperature detection means such as a thermistor provided on the base 12, and 37 is the iron body 3.
8 is a power supply terminal attached to the rear handle back plate 39, and is connected to the heater 13. 40 is a stand, which includes a mounting part 41 on which the iron main body 38 is placed, and a mounting part 41 on which the iron main body 38 is placed. The electrode 4 is connected to the power supply terminal 37 when placed on the section 41.
2, a temperature control means 43 constituted by a plurality of electronic components including a microcomputer that controls the temperature of the base 12 in response to the output signal of the temperature detection means 36, and a sounding body 44 such as a buzzer. .

Next, the operation of the structure of this embodiment will be explained. First, when the iron body 38 is placed on the stand 40, the power supply terminal 37 and the stand 4
Since the built-in electrode 42 is in contact with the base 12, the heater 13 is heated, the temperature of the base 12 rises, and the base 12 becomes ready for use. Next, a case will be described in which the iron main body 38 is removed from the stand 40 and ironing is performed using steam.

The press of the opening/closing button 35 is released, the opening/closing rod 34 is raised, and the opening of the dripping nozzle 32 is released. When the temperature of the base 12 is below the set temperature of the thermally responsive member 24, such as at the initial stage of energization of the heater 13, the thermally responsive member 24 is in the state shown in FIG.
7 closes the opening 20a. Therefore, waterway 2
Water does not flow into the vaporizing chamber 14, and even if the drip nozzle 32 is opened, water is not supplied into the vaporizing chamber 14.

When the base 12 is heated by the heater 13 and reaches the set temperature of the thermally responsive member 24, that is, the appropriate temperature for vaporizing water, the thermally responsive member 24
is reversed as shown in FIG. 2, the on-off valve 28 is raised via the pin 26, and the opening 2 is
Release 0a. In this state, water in the tank 19 passes through the water channel 22 and is supplied to the vaporization chamber 14 from the drip nozzle 32. The steam generated in the vaporization chamber 14 is discharged from the steam hole 15.
When this steam is generated, the heat of vaporization is taken away and the temperature of the base 12 gradually decreases. When a time T _{2 shorter than the time T 1 from when} the iron main body 38 is removed from the stand 40 until the temperature of the base 12 falls to the set temperature of the thermally responsive member 24, that is, the temperature t 1 at which no steam is generated, has elapsed, that is, When the base temperature reaches _t2 , the temperature control means 43 drives the sounding body 44 to issue a notification. In the above configuration, when the iron main body 38 is removed from the placing section 41, the output signal of the temperature detecting means 36 cannot be obtained.
The temperature control means 43 stores the temperature of the base 12 immediately before it is removed, and is set to start reporting after a time _T2 calculated from the rate of temperature decrease of the base 12. In other words, when the iron main body 38 is removed from the placement part 41 when the temperature of the base 12 is high, the time until the notification (T ₂ ) is long, and as the temperature at the time of removal is low, the time until the notification is It is gradually getting shorter. Therefore, the thermally responsive member 2
4 is reversed and reaches the state shown in FIG. 1, and no steam can be ejected, the operator can be informed of the correct time to place the iron main body 38 on the stand 40, so that the steam can no longer be ejected. After stopping, the iron main body 38 is placed on the stand 40 and the ironing is interrupted until the thermally responsive member 24 is reversed again, thereby eliminating waste and improving the efficiency of the ironing work.

Effects of the Invention As described above, the present invention provides a notification means for notifying the dripping valve before the dripping valve changes from the open state to the closed state due to a drop in the base temperature. This prevents the waste of having to return the iron body to the stand after it has worn out and wait until the dripping valve is open again, allowing the ironing work to be carried out efficiently.

[Brief explanation of the drawing]

FIG. 1 is a cutaway sectional view of essential parts of the cordless iron of the present invention, and FIG. 2 is a sectional view showing the same valve device.
FIG. 3 is a timing chart of the same, and FIG. 4 is a cutaway sectional view of a main part showing a conventional cordless iron. 12...base, 13...heater, 14...vaporization chamber, 19...tank, 27...valve device, 3
6...Temperature detection means, 37...Power supply terminal, 38...
... Iron main body, 40 ... Stand, 41 ... Placement section, 42 ... Electrode, 44 ... Notification means (sounding body).

Claims (1)

[Claims] 1. A base heated by a heater and provided with a vaporizing chamber, a tank that supplies water to the vaporizing chamber via a water channel, an on-off valve disposed in the middle of the water channel, and a base that is connected to the temperature of the base. , an iron body equipped with a thermally responsive member that opens the opening/closing valve when the temperature exceeds a predetermined temperature value, and a temperature detection means that electrically detects the temperature of the base; a mounting part for the iron body; a power supply means for the heater; Equipped with a temperature control means that receives the output signal of the temperature detection means to control the energization of the heater, stores the temperature drop characteristics of the base from the time of detachment from the iron body in terms of time, and activates the notification means when a predetermined time has elapsed. t 2 >t ₁ , where t ₂ is the base temperature after the elapse of the predetermined time at which the notification means is activated, and _{t 1} is the base temperature at which the thermally responsive member closes the on-off valve. Cordless iron set.