JPS6040880B2 - 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.

Structure of conventional examples and their problems In recent years, steam irons have been proposed that are equipped with an increased steam generator to remove stubborn wrinkles that are difficult to remove with normal steam output.

However, what is suitable for the structure of these steam irons is that, as shown in FIG.
A drip nozzle 9 is provided on a base 6 to which a base lid 5 is fixed, via gaskets 7 and 8. Further, the water in the tank 10 is configured to adjust the water supply to the vaporization chamber 2 by adjusting the opening and closing birch 11 up and down, and the water droplets supplied to the vaporization chamber 2 instantly turn into steam, and as shown by the arrow, the vaporization chamber 2 The steam was sent directly to the steam distribution chamber 4 and ejected from the steam nozzle 3. In addition to this general steam generation structure, there is also a structure that uses a built-in pump in the tank to forcibly send a certain amount of water to the vaporization chamber 2 and vaporize it instantly, if necessary. When used at the same time, the amount of steam increases, and the hard material remaining in the vaporization chamber 2 and the steam distribution chamber 4 is blown away from the steam outlet 3 by the explosive vaporization power that instantaneously vaporizes the water sent from the pump means. It is also known that so-called cleaning effects can be expected. The biggest challenge with such a steam iron with an increased steam generator is to have explosive vaporization ability, and especially if it is used in combination with normal steam generation, the temperature of the vaporization chamber will drop, so it is necessary to devise measures. It was.

However, in order to accurately detect the temperature of the hanging surface of the base 6, the thermostat is generally installed at approximately the center, isolated from the outer wall of the vaporization chamber, while maintaining an insulating distance, making it easy to enlarge the vaporization chamber. I couldn't even do it. The solution was to increase the surface area by installing mazes and weirs inside the vaporization chamber, but with this method, the hard substances that remained after years of use would accumulate in the narrow mazes and weirs, which would eventually lead to closures. This had the disadvantage that it would lead to lead and the steam iron would lose its functionality. OBJECTS OF THE INVENTION The present invention provides a steam iron that solves these conventional problems and can easily generate increased steam.

Structure of the Invention The present invention is provided with a tank having a water supply device for normal steam generation above the vaporization chamber and a pump means for temporarily supplying a large amount of water. By forming this dispersion device, the labyrinth and weir, which were conventionally used as a means to improve vaporization capacity, were removed and the accumulation of residual hard substances was eliminated.

DESCRIPTION OF THE EMBODIMENTS The base of the embodiment is one wide vaporization chamber excluding the conventional labyrinth and weir, and a dispersion device is formed at the outlet of the water sent from the pump means as a means to improve vaporization capacity, and the thermal efficiency is improved. The water is instantly vaporized by scattering it towards the highest heater wall and the entire surface of the vaporization chamber, and the water passes through the first steam passage and the second steam passage formed by the base and the hair lid of the base, and then from the steam outlet. It is configured to eject water.

Therefore, the water sent from the pump means does not cause a sudden temperature drop in any part of the vaporization chamber, but is dispersed by the small radial holes, and is vaporized over the entire surface of the vaporization chamber, including the heater wall, which is efficient. In the unlikely event that water droplets spill out from the vaporization chamber, they will be completely vaporized while passing through the first steam passage, and will be distributed to the steam ejection holes through the second steam passage.

Furthermore, as a connection method with the vaporization chamber, for example, by fixing a flexible member such as heat-resistant silicone rubber to the vaporization chamber side, and ironing the drip nozzle and the discharge port protruding from the discharge side guide pipe of the pump means from the bottom of the tank. It can be easily and airtightly installed and removed. In FIGS. 3 to 7, reference numeral 12 designates a base in which a heater 13 buried in a U-shape is formed, with a vaporization chamber 14 on the inside and a first steam passage 15 on the outside. A base hair cover 18 having an ejection hole 16 and forming a second steam passage turtle 7 between it and the base 12 is detachably attached with a screw 18a.

Reference character G is a base upper cover, and a flexible cylindrical part 249 made of heat-resistant silicone rubber or the like is used to connect the drip nozzle 22 protruding from the bottom of the tank 21 and the discharge port 23 of the pump means A between it and the heat insulating plate 20. 4a respectively. The tank 21 is usually provided with the above-mentioned drip nozzle 22 as a water supply device for generating steam, and is controlled by an opening/closing rod 23 which is linked with a steam button 25. opening and closing zen 26
When steam is required, it is pushed upward by the action of the springs 27 to open the drip nozzle 22. 2
The pump means A having the check valve 29 is operated up and down using the breast increasing steam button.

Reference numeral 30 denotes a check valve holding spring, which acts to hold down the check valve 29 at all times by hanging over the stopper.

32 is a pumping tube, and 33934 is a cylindrical portion formed at the same time as the multi-link members 21a and 2 link members b forming the tank 21, and the discharge side guide pipe 35 is formed by combining both by, for example, ultrasonic bonding.

Reference numeral 36 denotes a dispersion device for dispersing water sent from the guide pipe 35 into the vaporizing chamber tube 4, and is provided with radial small holes 37.

To explain the operation in the above configuration, when normally performing steam ironing, when the steam button 25 is turned upward, the dripping nozzle 22 is opened, the water in the tank 21 is guided to the vaporization chamber 14, and the water is instantly steamed. becomes the 6th
As shown by the arrow in the figure, the steam is guided from the vaporization chamber 14 to the second steam passage 17 through the first steam passage 15 and the tip entrance.

When you want to smooth out particularly stubborn wrinkles in some areas during ironing, by operating the increasing steam button 28, water is sucked up from the water pumping tube 32, overcoming the load of the check valve presser spring 30, and the discharge side guide tube 35 Through the small radial holes of the dispersing device 36, it is diffused into the vaporization chamber 14 and partially vaporized without a sudden drop in temperature. Even if water droplets were to be thrown away from the vaporization chamber 14, they would be completely vaporized in the first steam passage 15. In the above embodiment, the spraying device is provided separately, but it may be provided integrally with a member that sends out water using a pump device, for example, or the discharge port may have a spraying function.

In short, any device that can diffuse the water discharged into the vaporization chamber by the pump device is sufficient. Effects of the Invention As is clear from the embodiments described above, the present invention provides a spraying device in which the water in the tank is diffused and released within the vaporization chamber by means of a pump, thereby spraying water over a wide range and discharging the water in the vaporization chamber. Since the water is not locally cooled, the discharged water can be efficiently and instantaneously vaporized.

Therefore, the amount of steam can be increased without forming a winding labyrinth or weir, and an increased amount of steam generation structure can be obtained which prevents clogging due to evaporation residue such as limescale.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the conventional steam iron.
Fig. 2 is a cross-sectional view of the main part of the tank when it is placed in a conventional steam iron and stands on its own, Fig. 3 is a cross-sectional view of the tank according to an embodiment of the present invention, and Fig. 4 is a cross-sectional view taken along line B-B' of the same. Figure 5 is an enlarged sectional view of the pump means in an embodiment of the present invention; Figure 6 is a top view of the same base with the top cover removed; Figure 7 is a top view of the base with the back cover of the hanging surface removed. FIG. Stove 2...base, 13...heater, 14...vaporization chamber to 15...first steam passage, 17...second steam passage, 21...
Tank, 22... Normal steam generation water supply device (dropping nozzle), 23... Discharge port, 36... Sprinkling device,
A... Pump means. Figure 1 Figure 2 Figure 4 Figure 7 Figure 3 Figure 5 Figure 6

Claims (1)

[Claims] 1. A base equipped with a heater, a vaporization chamber, and a steam passage, and a tank equipped with a water supply device for normal steam generation and a pump means for temporarily supplying a large amount of water above the vaporization chamber, and facing the vaporization chamber. A steam iron with a water dispersion device formed at the outlet of the pump means.