JP3292126B2 - Iron - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron for applying moisture to clothes and the like to extend wrinkles.

[0002]

2. Description of the Related Art Conventionally, this type of iron has been configured as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 5, a heater 1 includes a base 2
The water tank 3 is arranged above the base 2. The vaporization chamber 4 vaporizes the water in the water tank 3 to generate steam. The pump device 5 supplies a large amount of water to the vaporization chamber 4, and the discharge port of the pump device 5 is closed by a check valve 6.

The lid 7 forms a water passage 8 below the water tank 3 so as to cover the check valve 6 and has an opening connected to the vaporization chamber 4 side. The thermally responsive on-off valve device 9 controls the supply of water to the vaporization chamber 4 based on the temperature of the base 2.

When the vaporization chamber 4 is heated to the vaporization temperature of water, the heat responsive member 10 senses the heat of the base 2 and reverses upward when the vaporization chamber 4 is heated to the water. 9, the water passage 8 is opened, and the pump unit 5 is moved up and down by the operation unit 11 so that the water tank 3
The internal water can be supplied in a large amount to the vaporization chamber 4 and the increased amount of steam can be ejected.

[0006]

However, in such a conventional structure, if the pump device 5 is operated to continuously eject the increased amount of steam, the heat of the base 2 becomes lower than the vaporization temperature of water, and the structure of the bimetal is used. The thermally responsive member 10 is
, The heat-responsive on-off valve device 9 is lowered, and the water passage 8 is closed.

At this time, since the water passage 8 is filled with the water supplied by the pump device 5 and the pressure is increased, the heat of the base 2 becomes higher than the vaporization temperature of the water again, and the heat responsive member Even if the base 10 senses the heat of the base 2 and reverses upward, the pressure in the water passage 8 causes the thermally responsive on-off valve device 9
However, there was a problem that the steam could not be pushed up and the increased steam could not be ejected.

The present invention solves the above-mentioned problems, and controls the pressure in the water passage even if the water in the water passage is pressurized, and opens and closes the thermally responsive valve device according to the heat of the base. The aim is to spout out a steady increase in steam and improve usability.

[0009]

According to the present invention, in order to achieve the above object, a water tank is disposed above a base heated by a heater, and a large amount of water in the water tank is supplied to a vaporization chamber by a pump device. Is supplied, and the supply of water to the vaporization chamber is controlled by the thermally responsive on-off valve device based on the temperature of the base to vaporize and generate steam. A discharge port of the pump device is closed with a valve body, a water passage is formed below the water tank so as to cover the valve body, and a lid having an opening connected to the vaporization chamber side is arranged. When the water is pressurized, the pressure is weaker than the valve operating pressure of the thermally responsive on-off valve device.
The water in the water passage is discharged to a water tank by a discharge device formed by an operating check valve .

Thus, even if the water in the water passage is pressurized, the pressure in the water passage is controlled to open and close the thermally responsive on-off valve device in accordance with the heat of the base, so that a constantly increased amount of steam is ejected. And the usability can be improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises a base heated by a heater, a water tank disposed above the base, and steam in the water tank by vaporizing water in the water tank. A vaporizing chamber to be generated, a pump device for supplying a large amount of water to the vaporizing chamber, a valve element closing a discharge port of the pump device, and a water passage formed under the water tank to cover the valve element. A lid having an opening connected to the vaporization chamber side, a thermally responsive on-off valve device that controls supply of water to the vaporization chamber based on the temperature of the base, and water in the water passage is pressurized. And a discharge device for discharging water in the water passage to the water tank when the discharge device is operated .
Operates at a pressure lower than the valve operating pressure of the thermally responsive on-off valve device
Formed by a non-return valve
Therefore, the pressure in the water passage is always open
It is possible to control the pressure to be equal to or lower than the operating pressure , open and close the thermally responsive on-off valve device in accordance with the heat of the base, constantly discharge a stable increased amount of steam, and improve the usability.

[0012]

According to a second aspect of the present invention, in the first aspect of the present invention, the discharging device has a holding portion fixed to a bottom surface of the water tank and a hole communicating the water tank with a water passage. It is formed of an umbrella-shaped flexible valve element that covers from the water tank side, and when the water in the water path is pressurized, the umbrella-shaped flexible valve element is deformed, and Water can be discharged into the water tank through the hole, and the thermo-responsive on-off valve opens and closes in response to the heat of the base, constantly increasing the amount of steam that can be spouted and improving the usability. The configuration can be simplified by reducing the number of points.

According to a third aspect of the present invention, there is provided a base heated by a heater, a water tank disposed above the base, a vaporization chamber for vaporizing water in the water tank to generate steam, and A pump device that supplies a large amount of water to the vaporization chamber, a valve body that closes a discharge port of the pump device,
A lid having an opening connected to the vaporization chamber side, forming a water passage below the water tank covering the valve element, and controlling water supply to the vaporization chamber based on the temperature of the base. And a passage volume expanding means for expanding the internal volume of the water passage. When the pressure in the water passage increases, the internal volume of the water passage is expanded by the passage volume expanding means. Thus, the pressure in the water passage is reduced, and the thermally responsive on-off valve device is opened and closed according to the heat of the base, so that a constantly increased amount of steam can be spouted, and the usability can be improved.

According to a fourth aspect of the present invention, in the third aspect of the invention, the passage volume expanding means may be fixed to a hole formed in the water passage and communicating with the atmosphere so as to surround the hole. It is formed by a bottomed cylindrical cap made of a flexible material, and when the pressure in the water passage increases, the bottomed cylindrical cap made of a flexible material is deformed, and the volume of the passage increases. As a result, the pressure in the water passage is reduced, and the thermally responsive on-off valve device is opened and closed according to the heat of the base, so that a constantly increased amount of steam can be spouted and the usability can be improved.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the passage volume enlarging means is formed by a valve element that closes a discharge port of the pump device. By forming the enlarging means with the same member, the bottomed cylindrical cap made of a flexible material constituting the passage volume enlarging means can be securely fixed, and the thermally responsive on-off valve device according to the heat of the base Can be opened and closed to constantly spout the increased amount of steam, and the usability can be improved.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) As shown in FIGS. 1 and 2, an iron body 12 blows out from a base 14 heated by a heater 13 and a blowing hole 16 formed in the base 14 covered with a cover plate 15. A vaporization chamber 17 for generating increased steam, a water tank 18 disposed above the base 14 for storing water and detachably provided, a pump device 20 for supplying water in the water tank 18 to a water passage 19, A water passage 19 is formed between the water tank bottom member 21 and the pump device 20.
Has a lid 23 which covers the first discharge path (discharge port) 22 and is fixed to the water tank bottom member 21.

The pump device 20 comprises an operating portion 24 formed vertically movable above the water tank 18 and a piston 26 formed of a flexible material which slides up and down in a cylinder 25 by operating the operating portion 24. And a button spring 27 for urging the operation unit 24 upward.

The cylinder 25 is provided with a pumping passage 28 downward.
And a first check valve 29 made of a steel ball or the like for opening and closing the pumping passage 28 and a valve body 30 for opening and closing the first discharge passage 22 for supplying the water in the cylinder 25 to the water passage 19.
Are provided.

The second check valve 31 constitutes a discharge device for discharging water in the water passage 19 to the water tank 18 when the water in the water passage 19 is pressurized. Check valve lid 3 having small hole 32 communicating with water tank 18
A steel ball 35 fixed at 3 and opening and closing the second discharge path 34;
The steel ball 35 has a steel ball spring 36 that urges the steel ball 35 downward, and is configured to operate at a pressure weaker than the valve opening operation pressure of a thermally responsive on-off valve device 41 described later.

A metal plate-like support 37 is provided with a water channel 39 which is joined to an opening 38 below the lid 23, and a water channel 3.
A water conduit 40 for guiding the water in the chamber 9 to the vaporization chamber 17;
And a valve spring 43 of the thermally responsive on-off valve device 41 for controlling the opening and closing of the valve.

The thermally responsive on-off valve device 41 opens and closes the valve device 42 by the up-and-down movement of the thermally responsive member 44 made of a bimetal incorporated in the base 14 in the vicinity of the vaporization chamber 17 due to the reversal operation and the reaction force of the valve spring 43. This is a working configuration.

The water conduit 40 is formed by superimposing a heat-resistant rubber packing 45 provided on the support 37 and a water lid 46, and the water lid 46 is sealingly fitted to the opening 38 of the water tank 18. Connection packing 47 is provided.

The operation of the above configuration will be described. First, when the heater 13 is energized and the vaporization chamber 17 is heated to the vaporization temperature of water, the heat responsive member 44 performs an inversion operation upward.
The heat responsive on-off valve device 41 is displaced upward to open the water passage 39, and the water passage 19 and the vaporization chamber 17 are communicated.

Here, the pump device 20 can be operated by moving the operation unit 24 up and down, and the water in the cylinder 25 is closed by the reciprocating motion of the piston 26 so that the first discharge port 22 is closed. The first check valve 29 is pushed down against the urging force of the check valve 29, and the water is pushed out into the water passage 19 from the opened first discharge port 22 vigorously.

The water discharged into the water passage 19 enters the water passage 39 through the opening 38 through the opening 38 because the water passage 39 is open and the second check valve 32 is closed. It flows into the vaporization chamber 17 and generates a large amount of steam,
The increased amount of steam is ejected from the ejection holes 16. This increased steam is associated with the temperature decrease in the vaporization chamber 17 and
The operation can be continued for a predetermined time.

When the temperature of the vaporization chamber 17 becomes equal to or lower than the vaporization temperature of water, the thermoresponsive member 44 senses the temperature and performs a reversing operation downward to close the water channel 39 via the thermoresponsive on-off valve device 41. In this state, even if the pump device 20 is operated, water is not supplied to the vaporization chamber 17, and the water discharged to the water passage 19 is operated at a pressure lower than the valve opening operation pressure of the thermally responsive on-off valve device 41. The check valve 32 is opened and returned into the water tank 18.

When the heat of the base 14 becomes equal to or higher than the vaporization temperature of water and the heat responsive member 44 senses the heat of the base 14 and reverses upward, the pressure in the water passage 19 increases the opening of the heat responsive on-off valve device 41. Since it is lower than the valve operating pressure, the thermally responsive on-off valve device 41
Is displaced upward, the water passage 39 is opened, the water passage 19 and the vaporization chamber 17 are communicated, and the increased steam can be ejected.

(Embodiment 2) As shown in FIG. 3, when the water in the water passage 19 is pressurized,
This constitutes a discharge device for discharging water in the water passage 19 to the water tank 18. The holding portion 49 is fixed to the water tank bottom member 21, and the water tank 18 and the water passage 19 provided on the water tank bottom member 21 are connected. The communicating small holes 50 are covered from the water tank 18 side, and are configured to operate at a pressure weaker than the valve opening operating pressure of the thermally responsive on-off valve device 41. Other configurations are the same as those of the first embodiment.
Is the same as

The operation of the above configuration will be described. When the temperature of the vaporization chamber 17 becomes equal to or lower than the vaporization temperature of water, the heat responsive member 44 senses the temperature and reverses the operation downward. Close 39. In this state, even if the pump device 20 is operated, water is not supplied to the vaporization chamber 17,
The water discharged into the water passage 19 is supplied to the umbrella-shaped flexible valve body 4 which operates at a pressure weaker than the valve opening operation pressure of the thermally responsive on-off valve device 41.
8 is deformed so that the water passage 19 communicates with the water tank 18 through the small hole 50, and is returned into the water tank 18 through the small hole 50.

When the heat of the base 14 becomes equal to or higher than the vaporization temperature of water, and the heat responsive member 44 senses the heat of the base 14 and reverses upward, the pressure in the water passage 19 increases the pressure of the heat responsive on-off valve device 41. Since it is lower than the valve opening operating pressure, the thermally responsive on-off valve device 4
By displacing 1 upward, the water passage 39 is opened, the water passage 19 and the vaporization chamber 17 are communicated, and the increased steam can be ejected.

(Embodiment 3) As shown in FIG.
Are formed by a bottomed cylindrical cap made of a flexible material such as rubber, and a hole 5 formed in the lid 23 and communicating with the atmosphere.
2 so as to surround the discharge port 2 of the pump device 20.
2 and a passage volume expanding means for expanding the internal volume of the water passage 19 when the pressure in the water passage 19 increases. Other configurations are the same as those in the first embodiment.

The operation of the above construction will be described. When the temperature of the vaporization chamber 17 becomes equal to or lower than the vaporization temperature of water, the heat responsive member 44 senses the temperature and performs a reversing operation downward. Close 39. In this state, even if the pump device 20 is operated, water is not supplied to the vaporization chamber 17,
The pressure in the water passage 19 temporarily increases.

At this time, since the small hole 52 communicating with the atmosphere is formed in the lid 23, the valve 51 formed by the bottomed cylindrical cap made of a flexible material is deformed so as to be crushed. Then, the internal volume in the water passage 19 increases, and the pressure in the water passage 19 becomes lower than the valve opening operating pressure of the thermally responsive on-off valve device 41.

When the heat of the base 14 becomes higher than the vaporization temperature of water again, the heat responsive member 44 senses the heat of the base 14 and reverses upward, displacing the heat responsive on-off valve device 41 upward to open the water channel 39. Open, let the water passage 19 communicate with the vaporization chamber 17,
Increased steam can be spouted.

[0037]

As described above, according to the first aspect of the present invention, the base heated by the heater, the water tank disposed above the base, and the water in the water tank are removed. A vaporization chamber for generating steam by vaporization, a pump device for supplying a large amount of water to the vaporization chamber, a valve element for closing a discharge port of the pump device, and a water cover below the water tank covering the valve element. A lid that forms a passage and has an opening connected to the vaporization chamber side, a thermally responsive on-off valve device that controls supply of water to the vaporization chamber based on the temperature of the base, A discharge device for discharging water in the water passage to the water tank when the water is pressurized ,
The discharge device is weaker than the valve operating pressure of the thermally responsive on-off valve device.
It is formed by a check valve that operates at a high pressure, so even if the water in the water passage is pressurized, the water in the water passage is discharged into the water tank and the pressure in the water passage is controlled to reduce the heat of the base. Accordingly, the thermally responsive on-off valve device can be opened and closed, and a constantly increased amount of steam can be spouted, and the usability can be improved.

[0038]

According to the second aspect of the present invention, in the discharge device, the holding unit is fixed to a bottom surface of the water tank, and an umbrella that covers a hole connecting the water tank and the water passage from the water tank side. When the water in the water passage is pressurized, the umbrella-shaped flexible valve is deformed, so that the water in the water passage passes through the hole into the water tank. Can be discharged,
The thermally responsive on-off valve device opens and closes in response to the heat of the base, constantly ejects a stable increase in steam, improves usability, and reduces the number of parts and simplifies the configuration.

According to the third aspect of the present invention, a base heated by a heater, a water tank disposed above the base, and a vaporizer for vaporizing water in the water tank to generate steam. Chamber, a pump device for supplying a large amount of water to the vaporization chamber, a valve body for closing a discharge port of the pump device, and a water passage formed under the water tank so as to cover the valve body. A lid having an opening connected to the side, a thermally responsive on-off valve device for controlling the supply of water to the vaporization chamber based on the temperature of the base, and a passage volume expansion for expanding the inner volume of the water passage Means, the pressure in the water passage is reduced by increasing the internal volume of the water passage by the passage volume expanding means when the pressure in the water passage increases, and the thermally responsive on-off valve according to the heat of the base Open and close the device, always stable It is possible for ejecting amount steam, usability can be improved.

According to the fourth aspect of the present invention, the passage volume expanding means has a hole formed in the water passage communicating with the atmosphere, and a flexible material fixed so as to surround the hole. When the pressure in the water passage is increased, the bottomed cylindrical cap made of a flexible material is deformed to increase the volume of the passage, and the pressure in the water passage is increased due to the formation of the bottom cylindrical cap. It is possible to open and close the thermally responsive on-off valve device in response to the heat of the base, lowering the operating pressure of the responsive on-off valve device to actuate the valve, and to constantly spray a stable amount of increased steam, while improving usability. it can.

According to the fifth aspect of the present invention, since the passage volume enlarging means is formed by the valve element closing the discharge port of the pump device, the valve element and the passage volume enlarging means are formed by the same member. Thereby, the bottomed cylindrical cap made of a flexible material constituting the passage volume expanding means can be securely fixed, and the thermally responsive on-off valve device is opened and closed according to the heat of the base, so that the amount constantly increased stably. Steam can be spouted out and the usability can be improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway sectional view of an iron according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the iron.

FIG. 3 is a sectional view of a main part of an iron according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a main part of an iron according to a third embodiment of the present invention.

FIG. 5 is a sectional view of a main part of a conventional iron.

[Explanation of symbols]

 Reference Signs List 13 heater 14 base 17 vaporization chamber 18 water tank 19 water passage 20 pump device 22 first discharge path (discharge port) 23 lid 30 valve element 31 second check valve (discharge device) 38 opening 41 thermally responsive opening and closing Valve device

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mamoru Ikeshima 1006 Kazuma Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A 9-192399 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) D06F 75/14

Claims (5)

(57) [Claims] 1. A base heated by a heater, a water tank disposed above the base, a vaporization chamber for vaporizing water in the water tank to generate steam, and supplying a large amount of water to the vaporization chamber. A pump device for supplying, a valve body for closing a discharge port of the pump device, and a lid body that covers the valve body, forms a water passage below the water tank, and has an opening connected to the vaporization chamber side. And a thermally responsive on-off valve device for controlling the supply of water to the vaporization chamber based on the temperature of the base, and, when the water in the water passage is pressurized, the water in the water passage to the water tank. ; and a discharge device for discharging to the
The discharge device is weaker than the valve operating pressure of the thermally responsive on-off valve device.
Iron formed by a check valve that operates at a high pressure . 2. The discharging device has a holding portion on a bottom surface of a water tank.
The hole that fixed the water tank and the water passage
2. An umbrella-shaped flexible valve body that covers from the tank side.
Iron as described. 3. A base heated by a heater,
And a water tank located above the base of the
A vaporization chamber that vaporizes the water and generates steam.
Pump device that supplies a large amount of water to the
A valve element for closing the discharge port of the device, and the water covering the valve element.
A water passage is formed below the tank and connected to the vaporization chamber side.
A lid having an opening, and based on the temperature of the base
A thermally responsive on-off valve device for controlling the supply of water to the vaporization chamber
And a passage volume enlarging means for enlarging the inner volume of the water passage.
Iron equipped with . 4. The passage volume expanding means is formed in a water passage.
A hole communicating with the atmosphere and fixed so as to surround this hole
Formed by a cylindrical cap with bottom made of flexible material
The iron according to claim 3 . 5. The passage volume enlarging means comprises a discharge device for a pump device.
5. The iron according to claim 4, wherein the iron is formed by a valve body closing a mouth .