JPS6241756B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a steam iron having a so-called increasing steam function that can temporarily eject a large amount of steam.

Conventional configuration and its problems Figure 1 shows the conventional configuration of this type of steam iron, in which a base 32 in which a heater 31 is embedded
A vaporization chamber 33 was formed in a part of the vaporization chamber 33, and a drip nozzle 34 was placed in a part of the vaporization chamber 33, and a discharge port 35 of a pump device was placed in a different part of the vaporization chamber 33. With this configuration, when generating a normal amount of steam, water is dripped only from the dripping nozzle 34, and when generating a large amount of steam, water is also supplied from the discharge port 35.

By the way, in the above-mentioned steam iron, the vaporization load on the vaporization chamber 33 during the steam increase function is large, and therefore there is a risk that water that has not been completely vaporized will mix into the steam as hot water and be ejected.

Therefore, recently, it has been considered to increase the vaporization area by forming the vaporization chamber into a maze, and to increase the vaporization ability by colliding water with the maze.
However, with this method, hard substances such as calcium compounds and sodium compounds contained in the water may be accumulated as limescale, making it impossible to generate steam, and it could hardly be called a preferable solution.

OBJECTS OF THE INVENTION The present invention eliminates these conventional drawbacks and provides a steam iron that reliably exhibits the steam increasing function.

Composition of the Invention The steam iron of the present invention has a base having a heater embedded therein and a vaporizing chamber and a steam outlet connected to each other via a steam passage, a dripping nozzle and a pump device, and the dripping nozzle connected to the vaporizing chamber. The bottom surface of the vaporization chamber is inclined so that the dripping point is lower than the discharge point, and the discharge point side is oriented toward the communication part of the steam passage. It is located on the downstream side, and even if the water vaporization in the vaporization chamber is insufficient during the steam increase function, it prevents hot water from flowing out and makes it possible to accurately blow out steam.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

In Figures 2 to 4, 1 is a base in which a U-shaped heater 2 is embedded and a vaporization chamber 3 is recessed in the upper surface located between the heaters 2, 4 is a base cover, and 5 is a base 1. It is a base lid attached flush with the bottom surface. Numerals 6 and 7 are upper and lower steam passages formed by the upper and lower surfaces of the base 1, the base cover 4, and the base lid 5, with the base 1 in between. The proximal ends are connected to the rear of the vaporization chamber 3 via communication portions 9, respectively. 10 is a rib that sets the steam passage 6 substantially in a meandering shape to increase the vaporization of residual water droplets and the steam flow rate; 11 is a steam outlet formed in the base lid 5 communicating with the lower steam passage 7; , arranged in two rows on both sides.

Further, 12 is a drip nozzle 13 facing the vaporization chamber 3.
It is a water supply tank that also has a built-in pump device 14. The pump device 14 is constructed by connecting a water pumping pipe 17 to the water suction side of a cylinder 16 in which a vertically movable piston 15 is installed, and a water feeding pipe 18 to the water feeding side. The tip of the water supply pipe 18 is located inside the lower part of the tank 12 and is connected to a discharge pipe 19 that passes through the bottom of the water supply tank 12 and the base cover 4 and faces the vaporization chamber 3 . In addition, 2
0 and 21 indicate check valves.

Now, the drip nozzle 13 on the bottom of the vaporization chamber 3
The dripping point 22 is positioned forward of the discharge point 23 of the discharge pipe 19, and the bottom surface of the vaporization chamber 3 is inclined so that the dripping point 22 side is at the lower side, that is, in a forward-downward manner.

In the above configuration, when generating a normal amount of steam, only the dripping nozzle 13 is opened and the water in the water supply tank 12 is dripped into the vaporization chamber 3 by head pressure.
In the case of increased steam, in addition to the above, the pump device 14 is operated to forcibly discharge a large amount of water into the vaporization chamber 3.

Here, even if the vaporization near the discharge point 23 of the vaporization chamber 3 is insufficient, the residual water (hot water) is guided by the slope of the bottom surface and flows toward the dripping point 22 side. Since the dripping point 22 is located in front of the vaporization chamber 3, that is, on the upstream side with respect to the communication part 9 with the steam passage 6, the hot water does not flow out into the steam passage 6 due to the momentum of the steam. Rather, the force of the steam causes the hot water to be contained in the front of the vaporization chamber 3. Even if hot water were to get mixed into the steam, it would be completely vaporized as it flows through the meandering steam passage 6 via the ribs 10.

Effects of the Invention As explained above, according to the present invention, it is possible to perform an efficient steam operation for increasing the amount of steam, and stable steam performance can be obtained with less limescale accumulation unlike the conventional method.

Furthermore, hot water does not flow out due to the steam, making it possible to provide a steam iron that is safer than this.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main part of a conventional steam iron, Fig. 2 is a sectional view of the main part of a steam iron showing an embodiment of the present invention, and Fig. 3 is a top view of the base part.
FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 5 is a perspective view of the main part of the base portion cut away. DESCRIPTION OF SYMBOLS 1... Base, 2... Heater, 3... Vaporization chamber, 6, 7... Steam passage, 11... Steam outlet, 12... Water supply tank, 13... Dripping nozzle, 14... Pump device, 22 ...Dripping point, 23
...Discharge point.

Claims (1)

[Claims] 1. A base having a heater embedded therein and having a vaporization chamber and a steam jet port connected via a steam passage, a drip nozzle and a pump device, and a drip point of the drip nozzle and a discharge point of the pump device with respect to the vaporization chamber. and water supply tanks with different water supply tanks, the bottom surface of the vaporizing chamber is inclined so that the dripping point is lower than the discharge point, and the discharge point side is located downstream with respect to the communication part of the steam passage. .