JPH07178295A - Spray type iron - Google Patents

Abstract

PURPOSE:To provide a spray type iron which executes uniform and stable spraying without uneveness. CONSTITUTION:The water dropping via a check valve device 18 from a water tank 16 disposed above an iron base 1 having a heater 2 evaporates and expands into an evaporation chamber 3 formed on the iron base 1 to close the check valve device 18. A valve body 11 opens a discharge hole 9 and the evaporates steam is ejected from an ejection hole 14 when a spraying button 25 is depressed in this state. The water of the water tank 16 is atomized by the energy of the steam and is sprayed from the spraying hole 28. At this time, the check valve device prevents back flow of the steam to the water tank 16, thus capable of executing stable spraying.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray-type iron used for extending wrinkles of clothes or the like in a general household.

[0002]

2. Description of the Related Art Ironing requires three elements of "temperature", "moisture", and "pressure", and steam irons satisfying these elements are becoming popular. However,
Steam has no effect on vegetable fibers such as cotton and hemp, and a large amount of water is often required. Therefore, in recent years, spray irons have become popular. As this type of spraying iron, a structure as shown in FIG. 4 is generally used. The configuration will be described below.

Reference numeral 101 is an iron base for unfolding the wrinkles of clothes, and 102 is a handle mounted on the upper surface of the iron base 101. The handle 102 is a water tank 103
Is equipped with. Reference numeral 104 is a cylinder having a check valve 105 in the lower part and a water spout 106. Reference numeral 107 denotes a nozzle penetrating the front wall of the handle 102 and projecting outward, and is connected to the fountain port 106 via a water pipe 108. Reference numeral 109 denotes a piston that is vertically slidably inserted into the cylinder 104. The upper end of the piston is projected to the outside of the cylinder 104, and is constantly raised by a receiving plate 110 fixed to the upper end and a spring 111 compressed between the cylinder 104. Is urged by. 112 is a through hole 11 on the upper part of the handle 102.
3 is a push button that freely extends and retracts from its bottom surface, and its lower surface is in contact with the upper end of the piston 109.

With the above construction, the operation is as follows. When the handle 102 is gripped and the push button 112 is pressed with the thumb, the piston 109 moves downward in the cylinder 104 against the spring 111. When the piston 109 descends in the cylinder 104, the water in the cylinder 104 becomes
Since the check valve 105 is closed, as the piston 109 descends, the nozzle 1 passes through the fountain port 106 and the water passage 108.
From 07, it is sprayed on the clothes being ironed in front of the handle 102.

Next, when the pressing force applied to the push button 112 is removed, the piston 109 moves up in the cylinder 104 by the spring 111. As a result, the pressure in the cylinder 104 becomes a negative pressure in the water tank 103. Therefore, the water in the water tank 103 is sucked into the cylinder 104 while opening the check valve 105. Therefore, the cylinder 104 is again filled with water, and the check valve 105 is closed again.

When the push button 112 is pressed again, the water in the cylinder 104 is sprayed from the nozzle 107 in the same manner as described above. By repeatedly applying and releasing the pressing force to the push button 112 in this way, the cylinder 104 and the piston 109 perform a pumping action to spray the water in the water tank 103.

[0007]

However, in the conventional device, the particle size of the mist sprayed from the nozzle 107 is as large as 100 μm or more. For this reason, water droplets are likely to be uneven on the sprayed clothes surface, which causes stains after ironing. In addition, each time spraying is performed, the pressing force applied to the push button 112 must be repeatedly applied and released, which causes a practical problem that the finger becomes tired.

The present invention is intended to solve the problems of the conventional structure as described above, and performs a uniform and uniform spray, and prevents the backflow of steam into the water tank to achieve stable spray. A first object of the present invention is to provide a spray-type iron that is easy to carry out and easy to use, and is easy to use. Further, in addition to the first object, a second object is to provide a more convenient spraying iron by making the interval of the intermittent spraying constant. Further, in addition to the second object, a third object is to provide a spray iron by which chattering of the ball valve at the time of spraying is prevented to obtain a more stable spray.

[0009]

The first means of the present invention for achieving the first object is an iron base heated by a heater, a vaporization chamber formed in the iron base, and an iron base of the iron base. A water tank for storing water to be supplied to the vaporization chamber provided above, a steam passage for guiding steam generated in the vaporization chamber to a steam hole provided at the bottom of the iron base, and a first passage communicating with the steam passage through a valve element. A second steam passage is provided, and a tip opening portion of a water conduit communicating with the water tank is located in the vicinity of a tip opening portion of the second steam passage, and is provided between the water tank and the vaporization chamber. In the communication water passage, a spray iron is provided with a check valve device for preventing backflow of steam from the vaporization chamber to the water tank.

The second means of the present invention for achieving the second object is a check valve device constituting the first means of the present invention, which is a ball for closing the vaporization chamber by the pressure in the vaporization chamber. Valve and a spring that assists the ball valve in easily opening the vaporization chamber when the pressure on the vaporization chamber side of the ball valve becomes approximately equal to the pressure on the water tank side. It is a spray iron provided on the water tank side of the valve.

A third means of the present invention for achieving the third object is, in addition to the structure of the second means of the present invention, that the pressure on the vaporizing chamber side of the ball valve is higher than the pressure on the water tank side. In the case of a high pressure, the spraying iron is provided with a second spring for assisting the ball valve to easily close the vaporization chamber, on the vaporization chamber side of the ball valve.

[0012]

The first means of the present invention is to atomize the water in the water tank with the force of steam to make the particle size of the mist finer and to perform uniform and even spraying. Further, by preventing the backflow of steam into the water tank, it works so as to obtain a stable spray.

Further, the second means of the present invention assists the ball valve to easily open the vaporization chamber by the spring when the pressure on the vaporization chamber side of the ball valve becomes close to the pressure on the water tank side. By doing so, it works so as to make the interval of intermittent spraying constant.

Further, the third means of the present invention makes it easy for the ball valve to close the vaporization chamber by the second spring when the pressure on the vaporization chamber side of the ball valve becomes higher than the pressure on the water tank side. To assist chattering of the ball valve.

[0015]

【Example】

(Embodiment 1) An embodiment of the first means of the present invention will be described below with reference to FIG. An iron base 1 is heated by a heater 2 embedded therein, and a base top lid 5 forms a vaporization chamber 3 and a steam passage 4 communicating with the vaporization chamber 3. Reference numeral 6 is a through hole that connects the second steam passage 7 formed in the iron base 1 and the steam passage 4. A steam hole 8 is provided at the bottom of the iron base 1 and communicates with the second steam passage 7. Reference numeral 9 is a discharge hole provided in the base upper lid 5 so as to face the through hole 6. Reference numeral 10 denotes a switching valve that is located above the discharge hole 9 and includes a diaphragm valve body, etc., and is an opening / closing valve 1 that opens and closes the discharge hole 9.
1 and a shaft 12 to which the on-off valve 11 is fixed. Reference numeral 13 is a third steam passage communicating with the steam passage 4 via the switching valve 10, and has an ejection hole 14 having an appropriate cross-sectional shape at the extension tip end thereof. Reference numeral 15 is a heat insulating plate that covers the iron base 1 from above.

Reference numeral 16 is a water tank provided above the iron base 1, and a dropping nozzle 1 communicating with the vaporization chamber 3 is provided in a communication water passage provided between the bottom of the iron base 1 and the vaporization chamber 3.
7 and a check valve device 18 composed of a ball valve or the like for preventing backflow of steam from the vaporization chamber 3 to the water tank 16.
have. The dropping nozzle 17 is opened and closed by an opening / closing shaft 19. When opening and closing the steam, the opening / closing shaft 19 is pulled up by the spring 20 to open the dropping nozzle 17. When the steam button 21 provided at the end of the opening / closing shaft 19 is pressed, the opening / closing shaft 1
9 can be used as a dry iron by closing the dropping nozzle 17.

Reference numeral 22 is a water conduit communicating with the bottom of the water tank 16, and has an opening 23 narrowed to a small diameter at its extension tip, and its ejection direction intersects that of the ejection hole 14. A switching pin 24 has a lower end facing the upper end of the shaft 12 and an upper end connected to a spray button 25. Reference numeral 26 is a spring that pulls the switching pin 24 upward. When the switching pin 24 is pulled upward, the lower end of the switching pin 24 separates from the upper end of the shaft 12, and the on-off valve 11 constituting the switching valve 10 is discharged. The hole 9 is closed. 27 is the opening 2
It is a passage for guiding the mist sprayed from 3, and communicates with the spray hole 28 provided in the iron base 1. Also, 29 is a handle, 3
0 is a water inlet.

The operation of this embodiment will be described below. When used as a steam iron for finishing wool or the like, the water dropped from the dropping nozzle 17 passes through the check valve device 18 and becomes steam in the vaporization chamber 3. The steam generated in the vaporization chamber 3 is jetted from the steam hole 8 through the steam passage 4, the through hole 6 and the second steam passage 7, and is sprayed on the clothes to be ironed. At this time, since the switching pin 24 is pulled up,
The discharge hole 9 is closed and the ejection hole 14 is closed.

When stubborn wrinkles such as cotton and linen are to be stretched,
The steam generated in the vaporization chamber 3 by pressing the spray button 25 is ejected through the third steam passage 13 into the ejection hole 14
It is possible to eject more intensively. That is, the switching pin 24 descends to push down the switching valve 10, and the on-off valve 1
1 opens the discharge hole 9 and closes the through hole 6, so that the vaporization chamber 3
The steam generated in 1) is intensively ejected from the ejection holes 14 through the third steam passage 13. At this time, since the opening 23 at the extension tip of the water conduit 22 is close to the ejection hole 14, the ejection force of steam from the ejection hole 14 causes a negative pressure in the vicinity of the opening 23. Therefore, the water in the water tank 16 ascends in the water conduit 22 and is discharged from the opening 23 in an appropriate amount. The discharged water is blown off by the steam from the ejection holes 14 and becomes a mist having a particle size of about 30 μm and is diffused in the ironing surface direction.

By the way, in this case, since the ejection hole 14 has an extremely small diameter as compared with the steam hole 8, the dropping nozzle 17
At the moment when the further dropped water becomes steam in the vaporization chamber 3, the pressure in the vaporization chamber 3 rises at once. Therefore, the check valve device 18 closes the dropping nozzle 17 by the pressure in the vaporization chamber 3 and prevents the high-pressure steam in the vaporization chamber 3 from flowing back to the water tank 16. Therefore, according to this embodiment, stable spraying can be obtained. After that, as the steam is ejected from the ejection holes 14, the pressure in the vaporization chamber 3 gradually decreases, and the pressure on the vaporization chamber 3 side is reduced to the water tank 1.
When the pressure becomes equal to or lower than the pressure on the 6 side, the check valve device 18 opens the drip nozzle 17 again, and the water in the water tank 16 is removed from the vaporization chamber 3
Dropped inside. In this way, the check valve device 18 repeats closing and opening depending on the pressure state in the vaporization chamber 3, so that stable intermittent spray is obtained.

That is, while the spray button 25 is being pressed without operating the pump, a stable and fine particle size provides a uniform finish without unevenness. If the spray button 25 is locked, the structure should be locked. This will make ironing easier.

(Embodiment 2) Next, an embodiment of the second means of the present invention will be described with reference to FIG. In FIG. 2, 1 to 30 are the same members as the configuration described in FIG. Further, in this embodiment, as the check valve device used in the above embodiments, the ball valve 18a for closing the dropping nozzle 17 by the pressure in the vaporization chamber 3 and the water tank 1 above the ball valve 18a.
The spring 31 provided on the 6 side is used. This spring 3
No. 1 is the ball valve 1 when the pressure on the vaporization chamber 3 side of the ball valve 18a becomes close to the pressure on the water tank 16 side.
The auxiliary operation 8a facilitates the opening of the dropping nozzle 17.

The operation of this embodiment will be described below. Example 1
Similarly to the above, the water stored in the water tank 16 becomes steam in the vaporization chamber 3. When stubborn wrinkles such as cotton and linen are to be stretched, the spray button 25 is pressed to cause the steam generated in the vaporization chamber 3 to be intensively spouted from the spout hole 14, and the water discharged from the opening 23 due to the force of the steam. It is atomized and adsorbed on clothes below the iron base 1.

By the way, in this case, since the ejection hole 14 has an extremely small diameter as compared with the steam hole 8, the pressure in the vaporization chamber 3 rises at a stroke at the moment when the water dropped from the dropping nozzle 17 becomes steam in the vaporization chamber 3. To do. For this reason, the ball valve 18a is moved by the spring 31 due to the pressure in the vaporization chamber 3.
To close the drip nozzle 17 and prevent the high-pressure steam in the vaporization chamber 3 from flowing back to the water tank 16. Therefore, according to the present embodiment, stable spray can be obtained. After that, when the pressure in the vaporization chamber 3 gradually decreases as the steam is ejected from the ejection holes 14 and the pressure on the vaporization chamber 3 side becomes close to the pressure on the water tank 16 side, the ball valve is urged by the spring 31. 18
a is forcibly pushed down. Therefore, the ball valve 18a opens the dropping nozzle 17 again, and the water in the water tank 16 is dropped into the vaporization chamber 3. In this way, the ball valve 18a is repeatedly closed and opened depending on the pressure inside the vaporization chamber 3, and stable intermittent spraying can be obtained. Further, since the spring 31 forcibly pushes down the ball valve 18a, it is possible to prevent the ball valve 18a from adhering to the dropping nozzle 17 due to water stain or the like, and to make the interval of intermittent spraying constant. is there.

(Embodiment 3) Next, an embodiment of the third means of the present invention will be described with reference to FIG. 1 to 31 are the same members as those used in the second embodiment. Also ball valve 1
On the lower vaporization chamber 3 side of 8a, when the pressure of the ball valve 18a on the vaporization chamber 3 side becomes higher than the pressure on the water tank 16 side, an auxiliary operation is performed so that the ball valve 18a is easily closed. A second spring 32 is provided.

The operation of this embodiment will be described below. As in the first embodiment, the water stored in the water tank 16 is vaporized in the vaporization chamber 3 to become steam. When stubborn wrinkles such as cotton and linen are to be stretched, the spray button 25 is pressed to eject the steam generated in the vaporization chamber 3 from the ejection holes 14, and the water discharged from the opening 23 is atomized by the force of the steam. It is to be adsorbed on the clothes below the iron base 1.

In this case, since the ejection hole 14 has an extremely small diameter as compared with the steam hole 8, the pressure in the vaporization chamber 3 rises at once at the moment when the water dropped from the dropping nozzle 17 becomes steam in the vaporization chamber 3. To do. For this reason, the ball valve 18 a moves the spring 3 by the pressure in the vaporization chamber 3 and the biasing force of the spring 32.
1 is compressed and the dropping nozzle 17 is closed. Therefore, the high-pressure steam in the vaporization chamber 3 is prevented from flowing back to the water tank 16, and stable spraying can be obtained. After that, the pressure in the vaporization chamber 3 gradually decreases as steam is ejected from the ejection holes 14. When the pressure on the vaporization chamber 3 side becomes close to the pressure on the water tank 16 side in this way, the urging force of the second spring 31 is forcibly forced.
8a is pushed down. That is, the ball valve 18a
Is to open the dropping nozzle 17 again and drop the water in the water tank 16 into the vaporizing chamber 3. In this way, the ball valve 18a repeats closing and opening of the dropping nozzle 17 depending on the pressure state in the vaporization chamber 3, so that stable intermittent spraying can be obtained.

By the way, the second spring 32 is provided in the vaporization chamber 3
It serves to prevent steam from wrapping around the ball valve 18a at the moment when the internal pressure rises, thereby preventing chattering of the ball valve 18a. Therefore, the ball valve 18a surely assists in closing the dropping nozzle 17 and realizes more stable spraying.

In each of the above embodiments, the iron base 1
Although the method of spraying from the spray hole 28 provided in the above is shown, it is obvious that the method of spraying from the front of the main body may be used, for example.

[0030]

The first means of the present invention is to store water to be supplied to the iron base heated by the heater, the vaporization chamber formed in the iron base, and the vaporization chamber provided above the iron base. A tank, a steam passage for guiding the steam generated in the vaporization chamber to a steam hole provided at the bottom of the iron base, and a second steam passage communicating with the steam passage through a valve body are provided. A tip opening portion of a water conduit communicating with the water tank is located in the vicinity of the tip opening portion of the passage, and a communication water passage provided between the water tank and the vaporization chamber is connected from the vaporization chamber to the water tank. As a configuration with a check valve device to prevent backflow of steam, the particle size of the mist can be made fine and uniform and even spraying can be performed, preventing backflow of steam to the water tank and stabilizing. It realizes the spray iron spray is obtained.

The second means of the present invention is, in addition to the structure of the first means of the present invention, the check valve device is constituted by a ball valve which is closed by the pressure in the vaporization chamber. When the pressure on the water tank side is close to the pressure on the water tank side, a spring is provided on the water tank side of the ball valve for assisting the ball valve to easily open, and the interval of intermittent spraying is set. By making the value constant, it is possible to realize a spray iron that can obtain accurate spray.

Furthermore, in addition to the structure of the above-mentioned second means of the present invention, the third means of the present invention is the ball valve when the pressure on the vaporization chamber side of the ball valve becomes higher than the pressure on the water tank side. Has a second spring on the side of the vaporization chamber of the ball valve to assist in closing the vaporization chamber so that a more stable spray can be obtained by preventing chattering of the ball valve. It will be realized.

[Brief description of drawings]

FIG. 1 is a side sectional view of a spray iron according to an embodiment of the first means of the present invention.

FIG. 2 is a side sectional view of the spray iron according to the embodiment of the second means of the present invention.

FIG. 3 is a side sectional view of the spray iron according to the embodiment of the third means of the present invention.

FIG. 4 is a side sectional view of a conventional spray iron.

[Explanation of symbols]

 1 Iron Base 2 Heater 3 Vaporizing Chamber 4 Steam Passage 7 Second Steam Passage 8 Steam Hole 13 Third Steam Passage 14 Spouting Hole 16 Water Tank 17 Dropping Nozzle 18 Check Valve 18a Ball Valve 22 Water Conduit 23 Opening 31 , 32 springs

Claims (3)

[Claims] 1. An iron base heated by a heater, a vaporization chamber formed in the iron base, a water tank for storing water to be supplied to the vaporization chamber provided above the iron base, and a vaporization chamber generated in the vaporization chamber. A steam passage that guides steam to a steam hole provided at the bottom of the iron base and a second steam passage that communicates with this steam passage through a valve body are provided, and near the tip opening of the second steam passage. A front end opening of a water conduit communicating with the water tank is located, and a check valve for preventing backflow of steam from the vaporization chamber to the water tank is provided in the communication water passage provided between the water tank and the vaporization chamber. A spray iron with a valve device. 2. A ball valve as a check valve device for closing the vaporization chamber by the pressure in the vaporization chamber, and a ball valve when the pressure on the vaporization chamber side of the ball valve becomes substantially equal to the pressure on the water tank side. The spray iron according to claim 1, further comprising a spring for assisting the vaporization chamber to be easily opened, the spring being provided on the water tank side of the ball valve. 3. A second spring for assisting the ball valve to easily close the vaporization chamber when the pressure on the vaporization chamber side of the ball valve becomes higher than the pressure on the water tank side. The spray iron according to claim 2, which is provided on the vaporization chamber side.