JPH0790101B2 - Steam iron - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam iron for smoothing wrinkles of clothes and the like.

2. Description of the Related Art A conventional steam iron of this type is disclosed in, for example, Japanese Patent Laid-Open No. 61-16.
As shown in Japanese Patent No. 2994, the structure was as shown in FIG.

That is, a water conduit 3 for supplying the water in the tank 1 to the vaporization chamber 2, a pump device 4 connected to the water conduit 3, and an operation button 5 for operating the pump device 4 are provided. By repeating the opening and closing of the water conduit 3 by manual operation and the up-and-down operation, a large amount of water is temporarily supplied to the vaporizing chamber and the increased steam is jetted.

However, with such a structure, it is difficult to perform the operation when switching between "steam" and "dry" during ironing work and when using "extended steam". It was

In other words, ironing work involves moving the iron,
In addition to the pressing action for pressing clothes being performed in a well-balanced manner by the operator's hand, the vertical movement operation of the operation buttons must be repeated at the same time when using "increase steam", and Since a large amount of water is temporarily supplied to the vaporization chamber, it is necessary to press the operation button at once, and not only the discharge force varies depending on the state of the pressing operation, but also the hand and fingers are burdened and the usability is poor. There was a problem.

Therefore, the present invention improves the operability when switching between "steam" and "dry" by opening and closing the water conduit, and when using "increasing steam" that temporarily supplies a large amount of water to the vaporization chamber, The purpose is to make it possible to stably eject a powerful “increasing steam” by equalizing the discharge force when a large amount of water is temporarily supplied to the vaporization chamber at once.

Means for Solving the Problems And, in order to achieve the above-mentioned object, the present invention is heated by a heater, a base having a vaporization chamber formed in part, a tank for storing water to be supplied to the vaporization chamber, and A water conduit for guiding the water in the tank to the vaporization chamber by the head of the water, a reciprocating pump device for forcibly sending the water in the tank to the vaporization chamber through the water conduit, and an electromagnetic power source for the pump device. "Steam""Dry", which is an electric device using a solenoid and a single operation of the pump device through the electric device in the forward direction, and the valve means provided in the middle of the water conduit is interlocked with this forward single operation. It is equipped with a changeover switch and a switch for "increase steam" for forcibly sending the water in the tank to the vaporization chamber by reciprocating the pump device a predetermined number of times through the electric device, and returning to the electric device. For When the energization is performed, the pump device is operated in the forward direction against the return spring when energized, and when the energization is stopped, the pump device is operated in the backward direction by the return spring.

Effect With the iron of the present invention, due to the above-described configuration, the opening and closing of the water conduit and the operation of the pump device that temporarily supplies a large amount of water to the vaporization chamber are extremely simple by simply pressing the switch for driving the electric device. It can be performed with various actions. Therefore,
Ironing work will be easier and the above electric device will
By generating increasing steam when it is turned on, it is possible to supply water to the vaporization chamber with a constant discharge force, so it is possible to stably eject strong increasing steam. It is a thing.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, 11 is a base, and a vaporization chamber 12 is integrally formed with this. A vaporization chamber lid 13 covers the vaporization chamber 12. Reference numeral 14 is a heat insulating plate arranged above the base 11.
Reference numeral 15 is a main body A, 16 is a main body B, and the main body A15
The water conduit 17 is formed by joining the same with heat welding or the like.
Reference numeral 18 denotes an elastic connection packing attached around the entrance 17a of the water conduit 17, and the upper surface thereof is in close contact with the tank outlet 19a formed at the bottom of the tank 19 to connect the tank 19 and the water conduit 17. Reference numeral 20 is a normally-closed valve that normally closes the tank outlet 19a at the bottom of the tank.When the detachable tank 19 is attached, the water in the tank 19 is guided by being pushed open by the lifting portion 21 composed of the water conduit body B16. Inflow into the waterway 17. A drip nozzle 22 is provided at the outlet of the water conduit 17, and communicates the water conduit 17 with the vaporization chamber 12 through the opening 13a of the vaporization chamber lid 13 via the nozzle packing 23. A ball valve 24 is provided movably in a hollow portion 25 forming a part of the water conduit 17 of the water conduit main body A15. Reference numeral 26 denotes a stopper provided on the lower surface of the water conduit main body B16, which is used to form the water conduit 17.
27 is also a ball valve and is set via a biasing spring 29 in a hollow portion 28 forming a part of the water conduit 17 of the water conduit main body A15,
It faces the lower end of the pump device 30. Reference numeral 31 is an electric device formed of an electromagnetic solenoid or the like installed above the pump device 30. A spring 32 normally urges the pump device 30 upward when no current is flowing. When an electric current is passed, the force of the spring 32 is overcome, the pump device 30 is pushed downward, and the water conduit 17 can be opened and closed by the ball valve 27.

To explain the flow of water in such a configuration, the tank
The water in 19 passes through the connecting packing 18 and the entrance 17 of the headrace 17
Then, the ball valve 24 is pushed by water pressure to flow into the cylinder portion 33 formed by a part of the water conduit main body A15. When an electric current is applied to the pump device 30, the pump device
The lower end of 30 pushes down the ball valve 27, so
It flows into the vaporization chamber 12 from the dropping nozzle 22 via 27.

Next, the operation of the pump device 30 will be described. Normally, when the electric current is not flowing through the electric device 31, the spring 32 urges the pump device 30 upward, so that the lower end of the pump device 30 cannot push the ball valve 27, and the ball valve 27 Thus, the water conduit 17 is cut off to be in a "dry" state.

Next, when the switch 34 is pushed to energize the electric device 31, the electric device 31 is excited and the pump device 30 is pushed down by overcoming the force of the spring 32, and the lower end of the pump device 30 is moved to the ball valve 27.
In order to push in, the flow rate of the water in the tank 19 is regulated by the dropping nozzle 22 and supplied to the vaporization chamber 12 due to the head pressure of the water, and normal steam is generated. Then, when a large amount of steam is temporarily required, for example, if the switch 35 for increasing steam is pressed once, the electromagnetic solenoid is automatically turned on at a predetermined interval by an electronic circuit (not shown). With the configuration of turning on / off, the excitation and non-excitation of the electromagnetic solenoid are cyclically repeated, so that the pump device 30 repeatedly moves up and down to forcibly supply a large amount of water to the vaporization chamber 12 via the drip nozzle 22. I can do things. As a result, "increasing steam" is obtained. To improve the efficiency of this increased steam, the ball valve 24
Is installed in the water conduit 17, and the tank is
Prevents backflow of water to 19. However, if only a large amount of water is forcibly supplied to the vaporization chamber 12 via the dropping nozzle 22 by the vertical movement of the pump device 30, the spring 32
When the electromagnetic solenoid is not excited, the pump device is pushed downward, and when the electromagnetic solenoid is excited, the suction force of the electromagnetic solenoid overcomes the spring force of the spring 32 and the pump device 30. It is also possible to have a structure in which the is lifted upward. However, it is desirable to supply a large amount of water into the vaporization chamber in the shortest possible time in order to obtain more efficient steam for increasing volume. Generally, the diameter of the dropping nozzle is very small, about φ0.6 mm, which is a considerable load for supplying a large amount of water into the vaporization chamber in the shortest possible time. In order to overcome the load and supply the water, the spring force of the spring 32 could not sufficiently fulfill the purpose. If the spring force of the spring 32 is made strong, it is necessary to use a large electromagnetic solenoid having a suction force that overcomes the spring force of the spring 32 in order to move the pump device 30 up and down. There was a problem if there was a limit. According to the invention, the spring 32
May be a weak spring force that merely pushes up the pump device 30 when the electromagnetic solenoid 31 is in the non-excited state. Therefore, since a small electromagnetic solenoid is used and the pump device 30 can be pushed down at a stroke when a current is applied to the electromagnetic solenoid, a large amount of water can be supplied to the vaporization chamber within a short period of time and a good performance increasing steam Can be obtained. In addition, as you can see from the above description in terms of usability,
Switch 34 for simply switching between "steam" and "dry"
Since it is only necessary to operate the "increasing steam" switch 35, a very good steam iron can be obtained.

Effects of the Invention As described above, according to the present invention, a switch for driving the electric device by opening and closing the water conduit and operating the increasing steam that temporarily supplies a large amount of water to the vaporization chamber by the electric device. It can be performed by a simple operation that only lightly presses. Therefore, it can be easily operated while moving the iron during ironing work and pressing the clothes, which can significantly reduce the fatigue of the hands and fingertips and greatly improve the usability, and also turn on the electromagnetic solenoid. By supplying water to the vaporizing chamber and generating increasing steam when it is made possible, it becomes possible to supply a large amount of water to the vaporizing chamber with a uniform discharge force within an extremely short time, and a powerful "increasing steam" is created. It has a special effect that it can be ejected stably.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a steam iron showing an embodiment of the present invention, and FIG. 2 is a sectional view of an essential part of a conventional steam iron. 11 …… Base, 12 …… Vaporization chamber, 17 …… Conduit, 19 …… Tank, 30 …… Pump device, 31 …… Electric device.

Claims (1)

[Claims] 1. A base heated by a heater to partially form a vaporization chamber, a tank for storing water to be supplied to the vaporization chamber, and a water conduit for guiding the water in the tank to the vaporization chamber by a water head. A reciprocating pump device forcibly sending the water in the tank to the vaporization chamber via the water conduit, an electric device using an electromagnetic solenoid that is a drive source of the pump device, and the pump via the electric device. A single operation of the device in the forward direction, and a "steam" or "dry" changeover switch that opens the valve means provided in the middle of the water conduit in conjunction with this single operation of the outward direction, and the pump device through the electric device It is equipped with a switch for "increase steam" that reciprocates a number of times to forcefully send the water in the tank to the vaporization chamber. Against The pumping device is operated in the forward direction,
A steam iron that is set so that the pump device can be operated in the backward direction by a return spring when the power supply is stopped.