JPS6058680B2 - steam iron - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a so-called pure drip type steam iron.

In the case of pure drip type steam irons, water is dripped from the tank into the vaporizing chamber and the steam generated is guided directly to the steam outlet in the base, but if the base is not heated enough or if the iron is operated incorrectly. This has the disadvantage that water or hot water flows out of the steam outlet.

Particularly for those with a removable tank, this pure dripping method is generally unavoidable.

The present invention solves the conventional problems by supplying water quantitatively from a tank to a vaporization chamber using a type of bubble pump using a boiler and a check valve instead of a drip nozzle. Explain.

Reference numeral 1 denotes a base, in which a heater 2 is embedded, and a vaporization chamber 3 and a steam passage 4 for guiding the steam generated in the vaporization chamber 3 to a steam ejection hole on the hanging surface of the base 1 are integrally provided.

5 is a handle, and 6 is a tank that can be attached or detached from the base 1. A check valve 7 is provided on a part of the bottom surface of the tank, and an operating rod 8 for opening and closing the check valve 7 is provided.

9 is a base lid mounted on the base 1 and seals and defines the vaporization chamber 3 and steam passage 4; 10 is a boiler mounted closely on the base lid 9; and a connection connected to the check valve 7 of the tank 6. A packing 11 is provided.

12 is a pipe that communicates the boiler 10 and the vaporization chamber 3;
The apparatus is installed in an inner space, and the part thereof is located above the base 1, specifically above the water level in the tank 6.

The pipe 12 includes a delivery pipe 12a connected to the boiler 10, a drip pipe 12b connected to the vaporization chamber 3, and a reservoir 13 connecting the delivery pipe 12a and the drip pipe 12b. The upper surface of the reservoir 13 has a valve body 13b that normally forms a slit 13a in the ironing state. Water is supplied to the boiler 10 by operating the operating lever 8. However, if the base 1 is not sufficiently heated and therefore the boiler 10 is not heated either, the pipe 12 will be turned upward. Since the water is rising, water is not supplied to the vaporization chamber 3. When the boiler 10 is sufficiently heated, water is boiled in the boiler 10 and is forced by steam pressure to the vaporization chamber 3 through the pipe 12. At this time, the water that has reached the drip tube 12b naturally falls into the vaporization chamber 3 through the slit 13a on the upper surface of the reservoir 13. The check valve 7 prevents steam or boiled water from flowing back into the tank 6. In this way, the boiler 10 acts as a kind of bubble pump, pumping water into the delivery pipe 1.
2a, water falls from the tank 10 when the pressure becomes negative, and water is stably supplied to the vaporization chamber 3 by sequentially repeating this operation. During use of the iron, when the iron is in a so-called heel rest state, i.e., when the iron stands on its own with its rear side down, water flows backwards and enters the reservoir 13, but at this time, the valve body 13b is closed by the pressure of the water or steam. When pressed, the slit 13a is closed to prevent water or steam from flowing out. The tube 12 is made of, for example, a heat-resistant plastic tube, and is housed within the handle 5 to improve its appearance. As described above, according to the present invention, a pure drip type steam iron does not have the drawback of water or hot water spewing out from the steam outlet,
Moreover, the structure is simple and the intended purpose can be achieved well.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; FIG. 1 is a side view with main parts cut away, FIG. 2 is a perspective view of the base, and FIG. 3 is a partially enlarged sectional view. 1... Base, 3... Vaporization chamber, 6...
... Tank, 7 ... Check valve, 10 ...
...boiler, 12...tube, 12a...
- Sending pipe, 12b...Dripping pipe, 13... Reservoir part.

Claims (1)

[Claims] 1 A boiler thermally installed on the base, a tank that supplies water to this boiler via a check valve, and a delivery pipe and a drip pipe that supply water from the boiler to the vaporization chamber of the base by the bubble pump action of the boiler. A steam iron, wherein one end of the delivery pipe and the dripping pipe are connected to a reservoir portion provided with a check valve, and the reservoir portion is located higher than the highest water level of the tank.