JPS6028520B2 - steam iron - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a steam iron used in general households.

Structure of the follower and its problems In the case of a steam iron equipped with a removable tank on the iron body, the tank is used to supply and stop water to the main body, as shown in Japanese Utility Model Publication No. 44-797, for example. It is common to have an opening/closing pestle.

In this case, if you forget to close the nozzle part with the opening/closing pestle and remove the tank from the main body, such as when draining the remaining water after ironing is finished or during the process, water will flow out and wet clothes and other parts. In order to solve these problems, for example, as disclosed in Japanese Utility Model Publication No. 45-17355, a structure has been devised in which the valve automatically closes when the tank is removed from the tank body. The valve is opened by pressing the valve, and closed by removing it. Therefore, it is impossible to emit and stop the steam during ironing, and although the tank can be attached and detached each time, it is not practical. In addition, since the above-mentioned valve is configured to directly open and close the nozzle hole, it is necessary to drip water easily from a very small hole, such as this type of drip-type steam iron.
If the valve body for opening and closing is located on the tank side of the hole, the flow of water will be significantly obstructed, and there is also the drawback that a stable jet of steam cannot be obtained due to continuous dripping of water. Furthermore, in the case of this type of steam iron, the water dropped into the vaporization chamber needs to be evaporated instantly, and if evaporation is insufficient, water may leak, resulting in wet clothes.

For this purpose, on the one hand, the nozzle was made to not open unless the vaporization chamber reached a temperature suitable for vaporizing water.
This is shown in Japanese Patent No. 5590. However, the above configuration is inconvenient to use because the tank cannot be attached or detached, and it is structurally difficult and difficult to fit the bimetal into the nozzle portion by attaching or detaching the tank. Purpose of the Invention The present invention provides an easy-to-use steam iron that solves various erroneous operations caused by user carelessness. /A steam iron with a removable tank that closes the nozzle to prevent water from flowing out, and also prevents water from being supplied even if the nozzle is opened when the vaporizing chamber is cold, preventing stains on clothes due to water leakage. This is to realize the following.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a water passage that connects a tank that is detachable to the iron body and a vaporizing chamber, a normally open valve provided in this water passage, and a normally closed valve that opens and closes the water passage. The normally closed valve is provided on the tank side, and the thermally responsive member is provided on the main body side, and when the tank and vaporization chamber are connected via a water passage, the vaporization chamber is closed to water. By opening the normally closed valve when steam can be evaporated, it is possible to prevent water from flowing out of the tank and leaking from the steam outlet due to malfunction.

Description of examples An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a base in which a heater 2 is buried and has a vaporizing chamber 3 and a steam jet hole 4; 5 is a base lid that is attached to the base and covers the vaporizing chamber 3; 6 is a handle attached above the base 1. , 7 is a heat shield plate attached to the top of the base, 8 is a tank located on the heat shield plate 7 and can be detached from the iron body A, 9 is a nozzle part provided at the bottom of the tank 8, 1 Kawa Mako A cylindrical rib 11 provided to surround the nozzle portion 9 is a gate provided on the heat shield plate 7 and is located opposite to the rib 10 . Perform location regulation. Reference numeral 12 denotes a protrusion provided on the upper rear surface of the tank 8, which is held by a lock knob 13 slidably provided on the handle 6, and is attached to and detached from the tank 8 by operating the lock knob 13.

Reference numeral 14 denotes a cylindrical portion provided on the base lid 5 facing the nozzle portion 9, and is provided with a plurality of guide grooves 4a.

Reference numeral 15 denotes a thermally responsive member such as a bimetal that senses the temperature of the base lid 5 and performs a reverse operation, and is covered with a cover 16.

17 is a packing made of silicone rubber or the like whose upper part is squeezed with a metal fitting 18 so as to be held on the protruding part 14a of the base lid 5, and whose lower part is attached to the protruding part 14 in an airtight manner.
Together, they constitute a water passage 17a.

19 has a leg 19a to guide the guide 14a, a protrusion 19b in the center, and a small hole 1 around the base of the protrusion 19b.
This is a valve body provided with 9c.

The nozzle part 9 has a first hole 9 that is opened and closed by an opening and closing punch 20.
a, and a second hole 9b provided at a distance from and below the first hole 9a, and a ball 22 biased by a spring 21 is pressed against the second hole 9b. It constitutes a normally closed valve. The opening/closing valve 2 is manually operated by a steam nail 23, and the first hole ga of the handle part 9 is closed to be used as a so-called dry iron, and the first hole ga is opened to be used as a steam iron. The bimetal 16 is a circular so-called dish panel type with a hole in the center, and is provided outside the packing 17 to drive the valve body 19 through the packing 17. FIG. 3 shows the state before the bimetal 16 is displaced, so the ball 22 is in the nozzle part 9.
The second hole 9b is closed to block the water passage 17a. Therefore, even if the first hole 9a is opened, water in the tank 8 will not be supplied to the vaporization chamber 3. When the base is heated and the vaporization capacity of the vaporization chamber 3 is ready, the base lid 5 also rises to a certain temperature due to conduction heat from the base, and sensing this heat, the bimetal 16 Flip as shown. The displacement at this time pushes the valve body 19, causing the projection 19b to engage the ball 22 to open the normally closed valve, thereby connecting the tank 8 and the vaporization chamber 3. Effects of the Invention According to the present invention configured as described above, the tank is detachably attached to the iron body so that column drainage can be easily performed, and it is possible to completely prevent staining of clothes due to misuse by the user. ,
In particular, there is no need to close the nozzle each time you remove the tank, and even if you accidentally open the nozzle to blow out steam, water will not be supplied to the vaporization chamber until the base reaches the appropriate temperature, so you can iron with confidence. The results are remarkable, such as being able to do more work.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side sectional view, Fig. 2 is a partially exploded perspective view, Figs. Figure 4 shows the nolled open state. 1...base, 3...vaporization chamber, 5...base lid, 8...
... Tank, 15 ... Thermal response member, 17a
...Water passage, 22...Ball (normally closed valve), A...Iron body. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A base having a vaporization chamber, a tank attached above the base and detachable from the iron body, a waterway connecting the tank and the vaporization chamber, and a water road provided on the above-mentioned road. The normally closed valve is provided with a thermally responsive member that opens and closes the normally closed valve. In the connected state, the steam iron opens the normally closed valve when the vaporizing chamber is capable of vaporizing water. 2. The steam iron according to claim 1, wherein the water passage is provided with a nozzle portion for supplying an appropriate amount of water in the tank to the vaporizing chamber.