JPS6063100A - steam iron - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

Conventional structure 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 rod. In this case, if you forget to close the nozzle part with the opening/closing rod and remove the tank from the main body, such as when draining remaining water after ironing is finished or during the process, water will flow out and wet your clothes and other parts.

In order to solve these problems, for example,
As shown in Japanese Patent No. 17355, a structure has been proposed in which the pulp is automatically closed when the tank is removed from the main body, and the pulp is opened by attaching the tank to the main body 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. However, since the above-mentioned pulp has a structure in which the nozzle hole is opened and closed directly, in products such as this type of drip-type steam iron that require stable dripping of water from very fine holes, the hole If the valve body for opening and closing is located on the side of the tank, it will significantly impede the flow of water, 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 and clothes will be wet.

For this reason, on the other hand, there was also a system designed to prevent the nozzle from opening unless the vaporizing chamber reached a temperature suitable for vaporizing water.
It is shown in the publication No.-15590. However, the above configuration is not easy 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. The tank can be attached and detached to prevent water from leaking by closing the nozzle when the vaporizing chamber is removed, and water will not be supplied even if the nozzle is opened when the vaporizing chamber is cold, preventing water from leaking and staining clothes. This is a type of steam iron.

Structure of the Invention In order to achieve the above-mentioned object, the present invention has a water passage connecting a tank detachably attached to the iron body and a vaporizing chamber, and a normally closed valve provided in this 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 the vaporization chamber are connected via a water passage, the vaporization chamber is closed to water. By opening the normally closed valve when steam is possible to evaporate, it is possible to prevent water from flowing out from the tank and leaking from the steam outlet due to erroneous operation.

DESCRIPTION OF THE EMBODIMENTS 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 embedded and has a vaporization chamber 3 and a steam jet hole 4; 6 is a base lid attached to the base 1 and covers the vaporization chamber 3; 6 is attached above the base 1. A handle, 7 is a heat shield plate attached to the top of the base 1, 8 is a tank located on the heat shield plate 7 and can be detached from the iron body, 9 is a nozzle part provided at the bottom of the tank 8, 1o is a A cylindrical rib 11 provided to surround the nozzle portion 9 is an opening provided in the heat shield plate 7, and is located opposite to the rib 1o, and the rib 10 is fitted into the tank 8. The location of the area is regulated. 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 the tank 8 is attached or detached by operating the lock knob 13. 14
is a cylindrical portion provided on the base lid 6 facing the nozzle portion 9, and is provided with a plurality of guide grooves 14a. 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.

Reference numeral 17 is a backing 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 6, and whose lower part is attached to the protruding part 14 in an airtight manner.
Together with this, it constitutes a water passage 1. 19 is a guide groove 14a
It has leg portions 19a to guide the
b, a valve body with a small hole 19C provided on the base side of the protrusion 19b. The nozzle part 9 is a first part that is opened and closed by an opening and closing rod 2o.
a hole 9a, and a second hole 9b provided at a distance from and below the first hole 9a;
A ball 22 biased by a spring 21 is pressed against b to form a normally closed valve.

The opening/closing rod 20 is manually operated by a steam button 23, and the first hole 9a of the nozzle portion 9 is closed to be used as a so-called dry iron, and the first hole 9a is opened to be used as a steam iron.

The bimetal 16 is of a so-called disc spring type having a circular hole in the center, and is provided outside the backing 17 to drive the valve body 19 through the socket king 17.

FIG. 3 shows the state before the metal 16 is displaced, and therefore the pole 22 closes the second hole 9b of the nozzle portion 9 and blocks 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 1 is heated and the vaporization capacity of the vaporization chamber 3G is ready, the base lid 6 also rises to a certain temperature due to the conduction heat from the base 1. Sensing this heat, the bimetal 16 4 Invert as shown in figure. The valve body 19 is pushed by the displacement at this time, and the protrusion 19b pushes the ball 22 to open the normally closed valve and connect 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 pouring and draining can be done easily, and it prevents 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 when spouting steam, water will not be supplied to the vaporizing chamber until the base reaches the appropriate temperature, so you can iron with confidence. The effects are often noticeable, such as being able to perform hanging work.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; FIG. 1 is a side sectional view, FIG. 2 is a partially exploded perspective view, FIGS. 3 and 4 are sectional views of main parts, and FIG. 3 shows a nozzle in a closed state; FIG. 4 shows the nozzle in its open state. 1...base, 3...vaporization chamber, 5...
...Base M, 8...Tank, 15...
...Thermal response member, 17a...Water passage, 22...
...Ball (normally closed valve), A...Iron body. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3

Claims (2)

[Claims] (1) A base having a vaporization chamber, a tank attached above the pace and detachable from the iron body, a waterway connecting the tank and the vaporization chamber, and a normally closed valve provided on the waterway. , a thermally responsive member t for opening and closing a normally closed valve, the normally closed valve being provided on the tank side, a thermally responsive member being provided on the main body side, and the tank and the vaporization chamber being communicated via a water passage. In this state, the normally closed valve is opened 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 from the tank to the vaporizing chamber.