JPS6079B2 - steam iron - Google Patents

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, the drip nozzle that controls the supply of water from the tank to the vaporization chamber at low temperatures is opened and closed by sensing the heat of the base using a bimetal installed inside the vaporization chamber. was considered.

However, this bimetal lacks reliability and durability due to repeated exposure to boiling water or steam and repeated drying, leading to corrosion and the adhesion of water scale. 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. The drawback was 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 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, and the thermally responsive member The thermally responsive member is completely separated from the hot water, steam, and water by placing it outside the vaporization chamber defined based on the evaporation chamber.

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;
A vaporization chamber 3 and a steam hole 4 are formed. 5 is a base lid that covers the vaporization chamber 3, and 6 is a cover that covers the entire base from above.

Reference numeral 7 denotes a handle installed above the base 1, and a tank 8 is formed inside.

Reference numeral 9 denotes a bottom plate fixed to the lower surface of the handle 7 to define the tank 8, which has an opening □ 10 and a cylindrical projecting portion 1 projecting upward.
1 is formed, and the upper surface of this protruding cylindrical portion 1 is formed with a support hole 12.
is formed.

13 is a water passage forming member fixed to the back surface of the bottom plate 9, which covers the opening □ 10 and the lower surface of the protruding cylindrical portion 11;
A water passage 14 is formed between the bottom plate 9 and the bottom plate 9.

Reference numeral 15 denotes a recess formed at the outer rear of the vaporization chamber 3 of the base, separated from the vaporization chamber 3, and a thermally responsive member 16 such as a reversible bimetal that senses the base temperature and performs reversal operation is installed in the recess 15. is located.

17 is a lid that covers the recess 15, and in the center of this lid 17 is a pin 18 that moves up and down as the thermally responsive member 16 reverses.
A guide hole 19 is formed to slidably hold the.

This is a first opening/closing device having a valve valve 20a integrally provided with an opening/closing valve 21 for opening/closing the opening low 0 on the upper part of the opening 1.
0 and the closing part 22 of the water passage forming member 13 located below the closing opening 10, and the opening/closing valve 2 is opened by the spring 23.
The force is urged downward to close the open low. 2
4 is a flexible packing that covers the lower surface of the opening 22 of the water passage forming member 13.

The first opening/closing device 2 moves up and down in response to the up and down movement caused by the reversing operation of the thermally responsive member 16 via the river pin 18, and opens □
Open and close 10. Reference numeral 25 denotes a drip nozzle provided on the water channel forming member 13 facing the lower surface of the protruding cylindrical portion 11 .

A closing opening 26 is formed in the base lid 5 located below the dripping nozzle 25, and the water dripped from the dripping nozzle 25 is
It is supplied into the vaporization chamber 3 through this opening □26. 27 is a second opening/closing device that moves up and down inside the protruding cylinder 11 and has an opening/closing village 27a and the like that opens and closes the opening □ of the dripping nozzle 25 at its lower end, and is always urged upward. □ is open, but operation button 2 at the top
8 is manually pressed downward, the opening/closing rod 27a descends and closes the opening of the dripping nozzle 25.

29 is a packing that connects the drip nozzle 25 and the closing opening 26 of the base lid 5.

In the above configuration, steam is used.

When the dripping is to be carried out, the pressure on the operation button 28 is released, the opening/closing rod 27a is raised, and the opening of the dripping nozzle 25 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 thermal response section 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. When the base 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.
a is raised to open the Sekiguchi 10 from the first opening/closing device 201. In this state, the water in the tank 8 is supplied to the vaporization chamber 3 from the drip nozzle 25 through the water passage 14, and 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, the operation button 28 can be pressed down and the second opening/closing device 27 can open the drip nozzle 2.
It is possible to stop the supply of water to the vaporization chamber 3 by closing the opening □ of 5, and switching between steam and dry mode can be performed arbitrarily by manual operation. Note that if the thermally responsive member 16 is provided close to the vaporization chamber 3 as in the embodiment,
This is more effective in accurately operating the thermally responsive member in response to the temperature of the portion where water evaporates.

Of course, the steam iron of the present invention is not limited to the position and shape shown in the embodiments, but the point is that the heat-responsive part 16 is separated from the vaporization chamber 3 so as not to come into contact with hot water, steam, water, etc. All you have to do is stay there.

Effects of the Invention As described above, the steam iron of the present invention has a heat-responsive member formed on the outside of the vaporization chamber provided on the base, and is completely separated from hot water, steam, water, etc., thereby preventing corrosion and limescale build-up. Moreover, there is no fear that the steam ejection will become unstable due to the influence of water from the dripping nozzle during use, and a highly reliable product that operates reliably over a long period of time can be obtained.

Of course, since this thermally responsive member is located outside the water-tightly sealed vaporization chamber, it goes without saying that maintenance and inspection is easy.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main parts of a steam iron showing an embodiment of the present invention, Fig. 2 is a sectional view of the main parts when steam is generated, Fig. 3 is an exploded perspective view of the main parts, and Fig. 4 is an exploded perspective view of the main parts. It is a top view of the base of the 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. Fig. 1 Fig. 2 Fig. 3 Fig. 4

Claims (1)

[Claims] 1 A base heated by a heater, a vaporizing chamber provided on this base, a tank placed above the base, a water passage that supplies water in this tank to the vaporizing chamber, and opening and closing of this water passage. This steam iron is equipped with an opening/closing device and is placed outside a vaporizing chamber defined based on a thermally responsive member that operates the opening/closing device.