JPS61176398A - 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] [Technical field of invention] The present invention relates to a steam iron.

[Technical background of the invention and its problems]

Generally, a steam iron has a vaporizing chamber and an ejection hole connected to the vaporizing chamber formed in the base, and water is dripped into the vaporizing chamber from a water tank through a drip nozzle, and steam is ejected from the ejection hole. However, depending on the fabric, it may be necessary to vary the steam m.

From this point of view, conventionally, for example,
As shown in Japanese Patent No. 92, a device is known in which a plurality of dripping nozzles are provided for the vaporization chamber, and the steam flow is varied by opening and closing these dripping nozzles.

However, since it is difficult to reduce the diameter of the dripping nozzle below a certain value in consideration of blockage caused by foreign matter, etc., the above structure has a limit in reducing the amount of steam. Furthermore, the valves that open and close the dripping nozzles must be watertight, as leakage may lead to corrosion of the base, and using a plurality of dripping nozzles is troublesome to assemble and increases costs. Furthermore, in order to open and close the dripping nozzle, if the operation is performed manually, a considerable stroke is required to close the valve by 17 fl, making the operation cumbersome.

[Purpose of the invention]

The present invention is an attempt to solve the above-mentioned problems, and aims to ensure that the steam level is varied, facilitate the operation of varying the steam amount, and provide it at low cost. It is something to do.

[Summary of the invention]

The steam iron of the invention of Suiyo 1 includes a base having a vaporizing chamber and a jet hole communicating with the vaporizing chamber via a steam passage, a water tank that supplies water to the vaporizing chamber through a dripping nozzle, and the base. a handle attached to the top and forming a handle, an on-off valve for varying the opening area of the steam passage is provided in the steam passage communicating the vaporizing chamber and the nozzle, and an electric response actuator for actuating the on-off valve; It is characterized by the fact that it is equipped with a device.

Moreover, the second invention further includes a temperature sensing element of a control device that controls energization to the electrically responsive device.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

1 is a base, and a heater 2 is embedded within this base 1. Further, a vaporizing chamber 3 is formed on the upper surface of the base 1, and an ejection hole 4 is formed on the lower surface of the base 1. 5.6, and the vaporization chamber 3 and each steam passage 5, 6 are covered with a steam cover 7.

A cover 8 is provided on the base 1.
A heat shield plate 9 is attached to the upper part of the handle 11, and a handle 11 having a handle portion 10 is attached to the heat shield plate 9. A water tank 12 is provided at the front of the handle 11.

A water inlet 13 is provided at the front upper part of the water tank 12, and a drip nozzle 14 facing above the vaporization chamber 3 is provided at the bottom of the water tank 12.
4, a valve rod 15 is supported vertically movably through a water tank 12, and an operation button 16 is provided at the upper end of this valve rod 15.
is provided, and by operating this operation button 16, the valve lever 15 is opened.
is moved up and down to open and close the drip nozzle 14 at its lower end to select between "steam" and "dry" conditions.

Also, a water tank 12 is provided for one of the steam passages 5.
An operating rod 17 is supported vertically movably through the operating rod 17, and an on-off valve 18 is attached to the lower end of the operating rod 11, and an electromagnetic device 19 as an electric response device is installed at the upper end of the operating rod 17. At the top of this electromagnetic device 19, an operation switch 20, which is an operation section of a control device that controls energization of the electromagnetic device 19, is provided in the front part of the handle portion 10 of the handle 11. Activate the electromagnetic device 19 and move the operating rod 17 up and down to close the on-off valve 1.
8 opens and closes the opening of one steam passage 5.

Further, the electromagnetic device 1 is installed near the vaporization chamber 3 of the base 1.
A temperature sensing element 21 of a control device for controlling energization to 9 is provided.

Next, the operation will be explained.

Water is stored in a water tank 12, and the heater 2 is energized to heat the base 1 and the vaporization chamber 3. When the temperature of the base 1 and the vaporization chamber 3 rises to a predetermined temperature, when the valve rod 15 is raised to open the dripping nozzle 14, the water in the water tank 12 is dripped from the dripping nozzle 14 into the vaporization chamber 3, The steam becomes steam and is ejected from the ejection hole 4 through each steam passage 5°6.

In this case, the amount of steam, that is, the amount of water dripped, is approximately determined by the hole diameter of the dripping nozzle 14, the water pressure of the water tank 12 applied to the dripping nozzle 14, and the steam pressure generated in the vaporization chamber 3. Therefore, if the hole diameter of the dripping nozzle 14 and the water pressure are constant, the dripping amount will decrease if the steam pressure in the vaporization chamber 3 is high, and increase if it is low.

Next, while maintaining the above steam injection state, by operating the operation switch 20 to energize the electromagnetic device 19,
The operating rod 17 is pushed down, and one steam passage 5 is closed by the l7i1rA valve 18.

Therefore, the steam pressure in the vaporization chamber 3 increases, the reverse pressure applied to the dripping nozzle 14 increases, the balance between water pressure and steam pressure in the water tank 12 changes, and the dripping amount decreases. quantity decreases.

In this way, by changing the frontage area of the steam passage 5.6 as a whole, the steam R can be changed.

In the above operation, the amount of steam that can be vaporized in the vaporization chamber 3 is largely influenced by the temperature of the base 1. That is, when the temperature of the base 1 is high, the amount of steam that can be vaporized is large, but when the temperature of the base 1 is low, the amount of steam that can be vaporized is decreased.

From this point of view, the temperature sensing element 21 is provided in the vicinity of the vaporization chamber 3 of the base 1. This temperature sensing element 21 is connected to the vaporization chamber 3.
When the temperature of the vaporization chamber 3 is low, the electromagnetic device 19 is forcibly kept energized regardless of the operation of the operation switch 20. Keep ω low to prevent dripping that exceeds vaporization capacity.

In addition, since the on-off valve 18 for varying the amount of steam is operated by an electric signal, its operating section can be easily placed near the handle section 10 at the front of the handle 11, which is easy to operate. Since the operation is also an on/off operation using electrical signals, it can be performed with a soft touch.

In the above embodiment, an electromagnetic device is used as the electrically responsive device, but a shape memory alloy may be used and the electromagnetic device may be operated by being energized.

Further, in the above embodiment, the electromagnetic device closes the steam passage by energizing it, but the electromagnetic device may operate in the opposite manner.

Note that the water tank may be either a fixed type or a removable cassette type.

(Effects of the Invention) According to the present invention, by controlling the opening area of the steam passage that communicates the vaporization chamber and the nozzle with an on-off valve, it is possible to reliably vary the amount of steam, and it is possible to This eliminates the need for multiple drip nozzles, which require high component precision, and can be provided at low cost.

In addition, by providing a temperature sensing element that controls the electric response device, the temperature sensing element detects the temperature of the vaporization chamber and determines the operation of the electric response device that can vary the amount of steam depending on the vaporization capacity of the vaporization chamber. It is possible to reliably prevent water from coming out of the nozzle due to insufficient vaporization capacity.

[Brief explanation of drawings]

The figure is a partially cutaway side view showing an embodiment of the steam iron of the present invention. 1. Base, 3. Vaporization chamber, 4. Nozzle hole, 5.6.
・Steam passage, 10.. Handle part, 11.. Handle,
12...Water tank, 14...Dripping nozzle, 18...Opening/closing valve, 19...Electromagnetic device as an electric response device, 20...
An operation switch as an operation part, 21...temperature sensing element.

Claims (4)

[Claims] (1) A base having a vaporizing chamber and a jet hole communicating with the vaporizing chamber via a steam passage, a water tank that supplies water to the vaporizing chamber through a drip nozzle, and a handle mounted on the base. The steam passageway communicating the vaporization chamber and the ejection hole is provided with an on-off valve that changes the opening area of the steam passage, and an electric response device that operates the on-off valve is provided. Steam iron. (2) The steam iron according to claim 1, characterized in that an operating section of a control device for controlling energization of the electric response device is provided near the handle at the front of the handle. (3) a base having a vaporization chamber and an ejection hole communicating with the vaporization chamber via a steam passage; a water tank that supplies water to the vaporization chamber through a drip nozzle; and a handle mounted on the base. and a handle formed with a handle, an on-off valve for varying the opening area of the steam passage is provided in the steam passage communicating with the vaporizing chamber and the nozzle, and an electric response device is provided to operate the on-off valve, and the above-mentioned A steam iron characterized by being provided with a temperature sensing element of a control device that controls energization to an electrically responsive device. (4) The steam iron according to claim 3, wherein the temperature sensing element of the control device is provided in the vicinity of the vaporization chamber of the base.