JPS6014470Y2 - steam iron - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the base structure of a steam iron, which has been improved so that stable steam can be ejected over a long period of time.

Conventionally, this type of steam iron bypasses multiple steam chambers via steam passages to prevent some of the water dripping into the vaporizing chamber from evaporating and flying out of the steam outlet. However, to completely prevent hot water from spilling out, it is necessary to reduce the amount of water dripping in proportion to the vaporization capacity, or to reduce the cross-sectional area of the steam passage.

However, in the case of the former, the amount of steam ejection (cc/min)
, and it becomes impossible to obtain sufficient wrinkle smoothing effect.
In the latter case as well, water scale gradually accumulates with use, making it difficult to produce steam, and increasing the pressure in the vaporizing chamber prevents water from dripping, making it impossible to obtain stable steam ejection.

It has also been confirmed that water scale tends to accumulate in the vaporization chamber where water evaporates and in the vaporization chamber near the vaporization chamber where some hot water is evaporated, and if the steam passage in these areas is narrowed, the above phenomenon will occur more quickly.

The present invention improves the structure of the steam passage in order to solve the above-mentioned drawbacks of the conventional steam passage.

One embodiment of the present invention will be described below with reference to the accompanying drawings. In the drawings, reference numeral 1 denotes a base in which a substantially U-shaped heater 2 is embedded, and a vaporization chamber 3 is formed inside the heater 2.

4, 5.6 are the vaporization chamber 3 and steam passages 4/, 5J. The steam chamber 6 is in communication with the steam chamber 6', and the steam chamber 6, which is the farthest from the vaporization chamber 3, is provided with a steam ejection hole 7.

The cross-sectional area of the steam passages 4', 5', and 6' is gradually reduced from the vaporizing chamber 3 to the side of the steam chamber 6 having the steam outlet 7, which is a steam outlet, so that the cross-sectional area of the steam passages 4'>5'>6' is I'm in a relationship.

This is because it has been confirmed through experiments that the internal pressure of the vaporization chamber 3 and the amount of water dripping are affected by the cross-sectional area of the steam passage 6' near the steam outlet.
By setting the cross section to a specified cross-sectional area, the internal pressure of the vaporizing chamber 3 and the amount of ice dripping are desirably balanced, and stable steam jetting can be obtained.

The most important steam passage 6' is from the vaporization chamber 3 to the steam chamber 4.
Since it is located at 5°, it also has the advantage of being less likely to accumulate water scale.

4a, 5a, 6a are walls protruding from the base 1 to form respective steam passages 4', 5', 6';
．． 6 is divided into multiple sections.

The walls 4a, 5a, and 6a each have a wall surface inclined with respect to the direction in which the steam generated in the vaporization chamber flows toward the steam jet hole 7.

This is the steam chamber 4. 5. The higher the walls 4a, 5a, 6a that partition the walls 6 extend upward from the bottom surface, the easier it is to prevent this, and by providing the walls 4a, 5a, 6a with an inclination, the cross-sectional area of the steam passage can be substantially increased. It is highly effective against blockages caused by water scale.

8 is the vaporization chamber 3 and the steam chamber 4. 5. 6 and is fixed on the base 1 via a sealant, and the steam passages 4', 5', and 6' are provided protruding from the base 1 as shown in FIG. It is formed by

Note that the arrow in the figure indicates the flow direction of steam from the vaporization chamber 3 to the steam jet hole 7.

Furthermore, by forming the tips of the walls 4a, 5a, and 6a into acute-angled shapes, the accumulation of water scale can be further reduced.

FIG. 4 shows another embodiment in which the walls 4b, 5b, and 6b are bent into a V-shape in plan, and the substantial cross-sectional area of the steam passage is expanded to prevent boiling water from spilling out.

As described above, the present invention divides the steam chamber into a plurality of them through steam passages in order to guide the steam generated in the vaporization chamber to the steam nozzle. The size is gradually reduced toward the steam outlet side.
The steam passage in the area where a large amount of water is evaporated is made large, and the steam outlet side where only steam passes is made small, making it difficult to get clogged with water scale accumulation and not increasing the pressure in the vaporization chamber, making water dripping unstable. It is possible to obtain a good jet of steam over a long period of time, and to reliably prevent boiling water from splashing out.

In addition, the practical effects of this invention include preventing the accumulation of water scale by providing the wall for forming the steam passage so that the wall surface is inclined with respect to the direction of steam flow from the vaporizing chamber to the steam nozzle. is big.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Figure 1 is a top view of the base;
Figure 2 is an enlarged top view of section A in Figure 1, Figure 3 is 13-B'
The sectional view, FIG. 4, is a partial top view of another embodiment of the wall shape. 1...base, 3...vaporization chamber, 4.
5. 6...Steam room, 4', 5', 6'...
...Steam passage, 4a, 5a, 6a, 4b, 5b
, 6b...”Wall.

Claims (2)

[Scope of utility model registration request] (1) A base in which a heater is embedded to form a vaporization chamber, a plurality of steam chambers communicating with the vaporization chamber through a steam passage, and a base lid attached to the base to cover the vaporization chamber and the steam passage. , the steam chamber is divided into a plurality of parts by the steam passage, and a steam ejection hole is provided in the steam chamber farthest from the vaporization chamber through the steam passage, and the cross-sectional area of the steam passage is defined as a steam outlet from the vaporization chamber. A steam iron that gradually gets smaller from side to side. (2) The steam iron according to claim 1, which is a registered utility model, wherein the steam passage is formed by a wall projecting from a base, and the wall surface is inclined with respect to the flow direction of steam. (31) The steam iron according to claim 1 or 2, wherein the tip of the wall forming the steam passage has an acute angle shape.