JPS6023639B2 - steam iron - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steam iron with a detachable water tank, and is aimed at improving the performance of the steam iron.

The water tank removable steam iron has a structure in which a drip nozzle installed at the bottom of the water tank is connected to a connecting member inside the base that leads to the vaporization chamber, and the water in the water tank drips into the vaporization chamber from the drip nozzle and is generated. Generally, the steam passes through a steam passage in the base and is ejected from a steam hole on the bottom of the base.

This method has a simple structure, but the diameter of the dripping nozzle is 0.
Since it has to be 6 to 0.7 willow, the dripping nozzle is likely to get clogged with dust, etc., and the dripping becomes unstable. Another drawback is that the amount of dripping changes when the water level in the water tank changes. Furthermore, if the steam button is accidentally raised and water drips into the vaporization chamber when the base is at a temperature insufficient for vaporization, unvaporized water may flow out from the steam hole. The present invention has been devised to address such problems, and will be described below with reference to drawings showing an example of implementation.

In the figure, 1 is a base that integrally houses a sheathed heater 2. A vaporization chamber 3 is formed in the base 1, and steam generated in the vaporization chamber 3 passes through a steam passage 4 and is ejected from a steam hole 5 provided at the bottom of the base 1. A boiler 6 is provided on the base 1 and includes a preheating chamber 6a and a boiling chamber 6b having a smaller volume than the secondary heating chamber 6a.
is installed, and when the water tank 7 is removably installed on the base 1, the check valve 8 provided at the bottom of the water tank 7 and the connecting members 9, 10 are connected to the connecting packings provided on the boiler 6 and the base 1, respectively. Combines with 11, 12 and 13. 1
4 is a steam button projecting above the water tank 7. When the operation button 14 is operated to pull up the opening/closing rod 15 and open the check valve 8, the water in the water tank 7 passes through the check valve 8 and flows into the boiler 6. A connecting gasket 12 is connected to the preheating chamber 6a and boiling chamber 6b.
It enters the delivery pipe 16 which is connected via. Boiler 6 is heated by base 1, and the energy per unit area applied to boiler 6 is the same everywhere,
Since the boiling chamber 6b has a smaller volume than the preheating chamber 6a, the boiling chamber 6b has a smaller volume than the preheating chamber 6a.
Boiling occurs faster in the preheating chamber 6a than in the preheating chamber 6a, and the expansion force of the generated steam pushes up the movable valve 17 in the check valve 8, thereby closing the check valve 8. Therefore, the steam tries to exit to the delivery pipe 16 side, and pushes out the water in the boiling chamber 6b and the delivery pipe 16 to a reservoir 18 provided above the water surface.
A small hole 18a is provided on the upper surface of the reservoir 18, and the water pushed out into the reservoir 18 flows into the drip pipe 19 by natural dripping, and then drips into the vaporization chamber 3 conveyed through the drip pipe 19, and the water is Steam generated in the vaporization chamber 3 passes through a steam passage 4 in the base and is ejected from a steam hole 5. When the steam in the boiling chamber 6b pushes out water and the pressure in the boiler 6 decreases and the check valve 8 opens, water flows into the preheating chamber 6a, and the hot water in the subheating chamber 6a is transferred to the boiling chamber 6b and sent out. The water flows into the pipe 16, and the water sending process described above occurs sequentially, and the water drips into the vaporization chamber 3 to generate steam. In the figure, there are two lock buttons and 21 is a handle.
The present invention is provided with a boiler 6 composed of a subheating chamber 6a and a boiling chamber 6b, and when the hot water filled in the preheating chamber 6a is further heated in the boiling chamber 6b and some steam is generated, water is sent out. . Therefore, since hot water is sequentially fed into the boiling chamber 6b, boiling occurs easily, and the interval between sending water to the vaporizing chamber 3 is short, so that steam generation is stable. By the way, if the boiler 6 is provided in only one chamber, when boiling occurs and water is pushed out, cold water from the water tank flows into the boiler 6, so it takes time for the next boil to occur, and steam generation tends to be intermittent. The steam iron of the present invention can be implemented as described above, and includes a boiler consisting of a heating chamber and a boiling chamber, and a check valve located between the heating chamber and the water tank of the boiler to control the water tank. The structure is such that the water inside the boiler is pushed up to the water surface through the boiler and then dripped into the vaporization chamber, and because it does not use a dripping nozzle like conventional ones, the dripping may become unstable or the amount of dripping may change due to changes in the water level. do not have.

Furthermore, when the temperature of the base is insufficient for vaporization, even if the steam button is accidentally raised, the check valve and boiler will not operate, and therefore water will not be sent to the vaporization chamber and will not flow out from the steam hole. Furthermore, since the boiler is composed of a preheating chamber and a boiling chamber, the interval between pumping out water is short and steam generation is stable. As described above, according to the present invention, the conventional problems can be solved and performance can be improved, and the effects are great.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1 is a cutaway side view of a main part of a steam iron, and FIG. 2 is a perspective view of a base on which a boiler is installed. 1...base, 2...sheathed heater, 3...vaporization chamber, 4
... Steam passage, 5 ... Steam hole, 6a ... Child heating chamber, 6b ... Boiling chamber,
6...Boiler, 7...Water tank, 8
...Check valve, 14...Steam button, 1
5... Opening/closing camphor, 16... Delivery pipe, 17
......Movable valve, 18...Reservoir, 19.
...Dripping pipe. Flame 2 diagram sickle diagram

Claims (1)

[Claims] 1. A steam iron having a base integrally equipped with a sheath heater, a boiler installed on the base, and a water tank that can be connected and separated from the vaporizing chamber in the base, the boiler having a preheating chamber and a boiling chamber, This steam iron is characterized by a check valve installed between the boiler's preheating chamber and the water tank.