JPH01262899A - Steam iron - Google Patents

Abstract

PURPOSE:To generate a power shot and to eliminate an operational (labor) burden of a user by controlling a check valve by a solenoid in the actuated time and opening and closing the check valve. CONSTITUTION:When an electric switch 28 is operated to power shot actuation, a solenoid 24 is actuated through a control part 35. Further, a ball 10 of which the chuck valve in a nozzle 9 for the power shot is composed is pressed down. Consequently, the check valve of the nozzle 9 is opened, and the water in a water tank 7 passes through this nozzle 9 and drops into a vaporizing room 3. After prescribed time passes, energizing in the solenoid 24 is cut off by the control part 35. Therefore, the ball 10 receives the force of a spring 11 energized in a direction to close the check valve and the force of a back pressure, cuts off energizing to the solenoid 24, and at the same time closes the check valve immediately. Therefore, the back pressure is prevented from escaping to the side of the water tank 7 by the ball 10 of the check valve and blown out from a steam hole 4 to the external part of a base 1 in an instant. Thus, a steam operation equivalent to the power shot can be executed by operating the electric switch 28 at appropriate time intervals.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a steam iron used for finishing clothes, etc.

Conventional technology The configuration of the conventional example will be explained based on FIG. 3.

In the figure, 1 is a base in which a heater 2 is embedded, 3 is a vaporization chamber formed in the base 1, 4 is a steam hole communicating with the vaporization chamber 3, and 5 is a base lid that covers the vaporization chamber 3. At the same time, a path is formed through which the steam generated by the steam is ejected from the steam hole 4. 6 is a cover that covers the entire base 1. 7 is a water tank detachably provided on the base 1, and has a steam nozzle 8 and a power shot nozzle 9 at its bottom;
has a built-in check valve composed of a ball 1o and a spring 11. 12.13 is attached to the page 71 side with a backing that allows each of the nozzles 8.9 to form a watertight passage in the vaporization chamber 3, and allows the nozzles 8.9 to be attached and detached. Reference numeral 14 denotes a valve stem with a valve body integrally provided at the tip on the side of the steam nozzle 8. The valve stem is watertightly sealed with the tank 7 in the middle so that it can move up and down, and the other end is connected to the steam operation button via a spring 16. 16. 17 is a manual pump for forcibly feeding water to the power shot nozzle 9, and includes a ball 18 of a valve body forming a check valve, a piston 19 for force feeding water, and this piston 19 for power shot. When the operation button 21 is pressed, the piston 19
and a spring 2o that provides a restoring force to the power shot operation button 21 that operates integrally therewith, and the operation button 21.
It is made up of. 22 is the suction port of the manual pump 17;
Reference numeral 23 denotes its discharge port, which is watertightly connected to the power shot nozzle 9.

In the above configuration, each steam generation will be explained.

First, for normal steam generation, steam operation button 1
6 to open the steam nozzle 8, the water in the water tank 7 is naturally dripped from the steam nozzle 8 into the vaporization chamber 3, the water is vaporized in the vaporization chamber 3, and is jetted out from the steam hole 4. Ru.

This is the case with normal steam, but next we will explain the case with power shot. In this case, when the power shot operation button 21 is first operated, the piston 19 fixed thereto overcomes the biasing force of the spring 2o and descends, and then returns to its original position by the biasing force of the spring 2o.

During the return process of the piston 19, water is sucked in from the suction port 22 through the portion of the ball 18 constituting a check valve in the path of the manual pump 17. Next, when the piston 19 moves downward, this sucked water does not return to the suction port 22 due to the check valve structure of the ball 18, but is forced into the power shot nozzle 9 through the passage 23'. , furthermore, a ball 10 constituting a check valve built into the nozzle 9 is connected to a spring 1.
1 and is sent into the vaporization chamber 3. In this way, a large amount of water is vaporized at once compared to normal steam, and is vigorously jetted out from the steam hole 4.

Problems to be Solved by the Invention As described above, when steam was conventionally generated, mechanical operations were performed to generate steam.

Especially in the case of a steam jet called a power shot,
Water is pumped by manually moving the operation button 21, ie, the piston 19, up and down, which requires a considerable amount of force. Therefore, holding the iron with one hand and performing this operation is a heavy burden for women who are general users.

Furthermore, if you use Power Shot indiscriminately, the temperature of the base will drop and eventually it will no longer be able to vaporize the water, resulting in it spewing out with water mixed in, or in some cases leaking out with almost no water at all. Sometimes. That is, the user had to be always careful.

The present invention solves these conventional problems,
The purpose of this invention is to provide a steam iron that does not impose burdens on the user, such as the user's effort to operate a manual pump and the frequency of use, when performing a power iron.

Means for Solving the Problems Therefore, the steam iron of the present invention has a solenoid that opens a check valve when energized and supplies water from the water tank to the vaporization chamber, and a control section that controls the operating time of this solenoid. It is something that you have.

Operation When the check valve is opened by the operation of the solenoid having the above structure, water naturally drips from the check valve into the vaporization chamber. Here, by setting the amount of water dripping when the check valve is open to the amount of water dripping corresponding to the power shot operation, a large amount of steam is generated. After a predetermined period of time has elapsed, the solenoid is activated and the check valve is closed. In other words, a large amount of water (equivalent to a power shot) dropped into the vaporization chamber causes
Although this generates a high back pressure, the check valve closes after a predetermined period of time, and the seven teams are ejected with a force comparable to that of a conventional power shot.

Embodiment An embodiment of the steam iron of the present invention will be described with reference to FIG. In FIG. 1, the same parts as in FIG. 3 are given the same reference numerals, and their explanation will be omitted.

In the figure, 24 is a solenoid provided in the main body 34, and is composed of a coil 26 and a plunger 26. A connecting rod 27 is operated by the action of the plunger 26 when the solenoid 24 is energized, and is held in the tank 7 so as to be able to move up and down, and pushes down the pole 10 of the check valve. Reference numeral 28 denotes an electric switch provided on the top surface of the main body, and is connected to a control section 36 also provided on the main body. The control section 35 controls the operating time of the solenoid 24.

Next, the operation of the above embodiment will be explained. First, electric switch 2
When 8 is operated to activate the power shot, the solenoid 24 is activated through the control section 36.

That is, the plunger 26 moves downward from the state shown in FIG. 1, and pushes down the ball 1o that constitutes the reverse valve in the power shot nozzle 9 via the connecting rod 27 located below. Therefore, the check valve of the nozzle 9 is opened, and the water in the water tank 7 drips into the vaporization chamber 3 through the nozzle 9. The amount of dripping at this time is larger than the amount of dripping from the steam nozzle 8 in the case of normal steam.
The opening area is increased. Therefore, a large amount of water is naturally dripped in a short period of time, which is equivalent to the conventional power shot operation.
It will be vaporized in the vaporization chamber 3. At this time, a large amount of water is vaporized in the vaporization chamber 3, so the back pressure is high, and the steam tries to return to the water tank T side. However, in this embodiment, the control section 35 turns off the power to the solenoid 26 after a predetermined period of time. Therefore, the pole 10 receives the force of the spring 11 that urges the check valve in the direction of closing, and the force of the back pressure, and immediately closes the check valve at the same time as the solenoid 24 is de-energized. is prevented from escaping to the water tank γ side by the check valve pole 10, and the -air steam hole 4
It will be ejected further out of the base 1. In this embodiment, when this steam operation is performed continuously, if the interval between the first operation and second operation, the second and third operation, or the nth and n+1th operation is not a predetermined time, this operation will not be accepted. The control unit 36 is configured such that there is no such thing. In other words, this is to prevent the power shot operation from continuously discharging too much water and supplying an amount of water into the vaporization chamber 3 that exceeds the vaporization capacity of the base 1 when the user performs the operation. In this manner, by operating the electric switch 28 at appropriate time intervals, a steam operation corresponding to a conventional power shot can be performed.

Needless to say, in this embodiment, the water tank 7 is configured to be detachable from the main body 34 as in the conventional case.

In addition, this example is equipped with the conventional normal steam function! Well, it shows a configuration that uses the steam function, which is equivalent to the conventional power shot function. This is to allow the user to select both normal steam operation and power shot steam operation. However, in the embodiment method of the present invention, it is not possible to generate normal steam by shortening the operating time of the solenoid 24 and shortening the time until the next operation (operation interval time). It can be said that it is easy and only a control problem.

Therefore, with this idea, it is also possible to eliminate the conventional conventional steam mechanism in FIG.

Next, a second embodiment will be explained based on FIG. 2.

In FIG. 2, 29 is a solenoid provided in the main body 34, 30.31 is a 1.2 coil, and 3
2 is a plunger. That is, the solenoid 29 is composed of two coils and one plunger. 33 is an electrical switch for operation provided on the main body 34. In this embodiment, the only means associated with the steam nozzle are the solenoids.

Here, the operation of the second embodiment will be explained.

First, the electric switch 33 is set to normal steam. At this time, the first coil 30 is activated, the plunger 32 is lowered to a position where it is magnetically balanced with the first coil 3o, and the ball 10 of the check valve is pushed down via the connecting rod 27. At this time, the same amount of water as in the conventional normal steam operation is allowed to drip naturally into the vaporization chamber 3. In other words, by continuing to operate the first coil 3o, steam corresponding to the conventional normal steam function can be generated.

Next, when the electric switch 33 is set to power shot, the first coil 3o is turned off and the second coil 31 is activated. In this case, the plunger 32 is connected to the second coil 31
is magnetically attracted to and lowers to a balanced position. That is, it is held below the first coil 30, and the ball 10 of the check valve is lowered lower than in the case of the normal steam operation described above, making the opening of the check valve wider. As explained in the above-mentioned first embodiment, the amount of water dripped by the conventional Power Shot Osho is thereby dripped, and the subsequent operation also works as explained in the above-mentioned first embodiment. be. Therefore, usually steam,
This allows you to freely perform power shots.

Effects of the Invention As explained above, a power shot can be generated by controlling and opening/closing the check valve using a solenoid according to its operating time.

Therefore, in order to generate a power shot like in the past, there is no need to operate the pump by moving the operation button up and down.
That is, it does not burden the user with operation (labor), and it is possible to easily eliminate the problem of over-activating the pump and causing water leakage from the steam hole, and it is possible to generate a power shot with a simple operation.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts showing a first embodiment of the steam iron of the present invention, Fig. 2 is a sectional view of essential parts showing an embodiment of the same song, and Fig. 3 is a sectional view of essential parts showing a conventional example. It is. 3... vaporization chamber, 4... steam hole, 1
o...Ball, 11...Ba,i,,2
4.29...Solenoid, 34...Body. Name of agent: Patent attorney Toshio Nakao and 1 other person3-
Vaporization chamber 9-Bafushi 1-y)-Nosle 1o...Ball jl-ba 24---So-shi Noido? 5 °・
Coil? 6- Plunge - Go... 9-... Solenoid Figure 2

Claims (2)

[Claims] (1) A base forming a vaporization chamber, a water tank on the base, a check valve provided between the water tank and the vaporization chamber, and a check valve installed between the water tank and the vaporization chamber; A steam iron that has a solenoid that supplies water to a vaporizing chamber, and a control unit that controls the operating time of this solenoid. (2) The steam iron according to claim 1, wherein the solenoid comprises two coils and one plunger, and the opening degree of the check valve is adjusted in two stages.