JPS59100A - Steam 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 Industrial Application The present invention relates to a steam iron for general household use.

Conventional structure and its problems Conventionally, at low temperatures, the drip nozzle that controls the supply of water from the tank to the vaporization chamber is opened and closed by sensing B and A using a bimetal installed in the vaporization chamber. was considered.

However, this bimetal lacks reliability and durability, as corrosion progresses due to constant contact with hot water or steam, and repeated drying, and limescale etc. adhere to the bimetal. Also, even during use, this bimetal senses the heat of the base and opens the drip nozzle, but the water supplied from the drip nozzle cools the bimetal, causing the drip nozzle to become clogged. However, there was a drawback that a stable steam jet could not be obtained.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks and provides a highly reliable steam iron that emits stable steam and can be used for a long period of time.

Structure of the Invention In order to achieve the above-mentioned object, the present invention operates a water passage opening/closing device for supplying water in a tank to a vaporization chamber by a thermally responsive member provided on the base side. By arranging the response member outside the vaporization chamber defined by the base, the thermal response phase is completely separated from hot water, steam, and water.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is a base in which a heater 2 is embedded, and a vaporizing chamber 3 and a steam hole 4 are formed therein. 5 is a base lid that covers the vaporization chamber 3, and 6 is a cover that covers the entire base 1 from above.

A handle is installed above the base 1, and a tank 8 is formed inside. Reference numeral 9 denotes a bottom plate that is fixed to the lower surface of the handle 7 to define the tank 8, and is formed with an opening 10 and a cylindrical protruding portion 11 that protrudes upward.
A support hole 12 is formed in the upper surface of the support member 1 . 13 is the bottom plate 9
This is a water passage forming member fixed to the back surface of the holder, and covers the opening 10 and the lower surface of the protruding cylindrical part 11, and forms a water passage 14 with the bottom plate 9. Reference numeral 16 denotes a recess formed at the outer rear part of the vaporization chamber 3 of the base 1 and separated from the vaporization chamber 3, and within this recess 16 is a thermally responsive member 16 such as a reversible bimetal that senses the base temperature and performs an inversion operation. is located.

17 is a lid that covers the recess 16, and in the center of this lid 17 is a bottle 18 that moves up and down by the reversal action of the heat-responsive part 16.
A guide hole 19 is formed to slidably hold the.

Reference numeral 20 denotes a first opening/closing device having a valve shaft 201 integrally provided with an opening/closing valve 21 for opening and closing the opening 10 at the upper part;
0 and the opening 22 of the water passage forming member 13 located below the opening 10, and the spring 23 opens the on-off valve 2.
1 is biased downward to open and close 1''1o.

24 is a flexible banking that covers the lower surface of the opening 22 of the water passage forming member 13. The first opening/closing device 20 opens and closes the opening 10 by vertically moving in response to the vertical movement of the thermally responsive member 160 through the reversing operation of the bottle 18 . Reference numeral 25 denotes a drip nozzle provided on the water passage forming member 13 facing the lower surface of the protruding cylindrical portion 11 . An opening 26 is formed in the base lid 6 located below the dripping nozzle 26, and water dripped from the dripping nozzle 26 is supplied into the vaporization chamber 3 through this opening 26. Reference numeral 27 denotes a second opening/closing device having an opening/closing rod 27a etc. that moves up and down inside the protruding cylinder 11 and opens and closes the opening of the dripping nozzle 25 at its lower end. Although it is open, when the operation button 28 at the upper end is manually pressed downward, the opening/closing rod 27a descends and closes the opening of the drip nozzle 26. 29 is a backing that connects the drip nozzle 25 and the opening 26 of the base lid 5.

In the above configuration, when ironing is performed using steam, the pressure on the operation button 2B is released, the opening/closing rod 272L is raised, and the opening of the dripping nozzle 26 is opened.

When the temperature of the base 1 is lower than the appropriate steam temperature, such as when the heater 2 is initially energized, the thermally responsive part 16 is in the state shown in FIG. 1, and the opening/closing valve 21 closes the opening 10. Therefore, water does not flow into the water passage 14 and is not supplied into the vaporization chamber 3 even if the drip nozzle 25 is opened.

Then, when the base 1 is heated by the heater 2 and reaches an appropriate temperature for vaporizing water, the thermally responsive member 16 is reversed as shown in FIG.
is raised and the opening 10 is opened by the first opening/closing device 2o. In this state, the water in the tank 8 flows through the water passage 14.
The steam generated in the vaporization chamber 3 is discharged from the steam hole 4.

At this time, the thermally responsive member 16 is not affected by the inside of the vaporization chamber 3. Of course, even during use, it is possible to stop the supply of water to the vaporization chamber 3 by pressing down the operation button 28 and closing the opening of the dripping nozzle 26 with the second opening/closing device 27. Switching between steam and dry can be done manually.

It should be noted that if the thermally responsive member 16 is provided close to the vaporization chamber 3 as in the embodiment, it is even more effective in accurately operating the thermally responsive member in accordance with the temperature of the portion where water is vaporized.

Of course, the steam iron of the present invention does not specify the position or shape shown in the embodiments, but the point is that the heat-responsive part 16 is not exposed to boiling water, steam or water melt (C) ((vaporization)). The steam iron of the present invention only needs to be separated from the chamber 3. Effects of the invention J: As shown in ll, the steam iron of the present invention has a vaporizing chamber of the shape IJQI-
1. Completely separated from hot water, steam, water, etc. 7. 1. There is no risk of corrosion or limescale staining the chair.
In addition, a highly reliable device that operates reliably at 0τ over a long period of time, such as no unstable jetting due to the influence of water from the hot nozzle during use, can be obtained.

Of course, 2. Since this thermally responsive phase is located outside the vaporization chamber, which is sealed watertight, it goes without saying that maintenance and inspection is a hassle.

4. Single explanation of section 4O pipe Section 1 is a sectional view of the main part of a steam iron showing one embodiment of the present invention, Fig. 2 is a sectional view of the main part when steam is generated, and Fig. 3 is an exploded view of the main part. The perspective view and FIG. 4 are top views of the base of the same steam iron with the base lid removed.

1...Base, 2...Heater, 3...
... Vaporization chamber, 8 ... Tank, 14 ...
...Water passage, 16...Thermal response member, 20.27...
...Switching device.

Name of agent, patent attorney-1-Toshio Nakao and 1 other person Figure 2 Figure 3

Claims (1)

[Claims] A base heated by a heater, a vaporization chamber provided on this base, a tank placed above the base, a water passage that supplies water in this tank to the vaporization chamber, and an opening/closing device that opens and closes this water passage. This steam iron is equipped with a heat-responsive device that operates this opening/closing device and is placed outside a vaporization chamber defined based on a heat-responsive part.