JP2008093087A - Steam iron - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steam iron capable of safe ironing without leakage of water. <P>SOLUTION: The steam iron comprises: a vaporization chamber 5 which is formed to a base 4 heated by a heater 3 and generates steam; a plurality of steam holes 6 for blowing off the steam; a water conveyance body (not show in a figure) for conveying water from a water tank (not shown in a figure) to the vaporization chamber 5; and a thermally-actuated opening closing valve device 9 which is disposed in the vaporization chamber 5, opens the water conveyance body only when the vaporization chamber 5 is heated equal to vaporization temperature of the water or higher, and passes the water. The vaporization chamber 5 is provided with a drip part 10 for dripping water and an exit part 11 for discharging the steam into the steam holes 6. First and second wall surfaces 12 and 13 alone divide between the thermally-actuated opening closing valve device 9 and the drop part 10 and between the thermally-actuated opening closing valve device 9 and the exit part 11 respectively. Thus, thermal sensitivity of the thermally-actuated opening closing valve device 9, the drop part 10, and the exit part 11 is improved, change in temperature in the vaporization chamber 5 is quickly followed to open and close a passage of the water conveyance body, so that the water does not leak. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a steam iron used for wrinkle stretching of clothes and the like.

  FIG. 4 is a plan view showing the internal structure of this type of conventional steam iron.

  In FIG. 4, a conventional steam iron includes a base 4 heated by a heater 3, a vaporizing chamber 5 for generating steam, a steam hole 6 for ejecting steam generated in the vaporizing chamber 5 to the outside, and the temperature of the base 4 A heat responsive valve opening / closing device 9 that opens and closes a passage of a water guiding body (not shown) and controls the flow of water, an outlet portion 11 that discharges steam into the steam hole 6, and a heat responsive opening / closing valve device 9; A first wall surface 12 formed between the vaporization chambers 5 and a second wall surface 13 formed between the vaporization chamber 5 and the outlet portion 11 are provided.

  The steam generation mechanism of the conventional steam iron configured as described above is as follows.

When water passing through the water guiding body is dropped from a water tank (not shown) into the vaporizing chamber 5 heated by the heater 3, the water is vaporized and steam is generated. When the temperature of the vaporizing chamber 5 falls below the temperature at which steam can be generated, the thermally responsive on-off valve device 9 senses heat and closes the passage of the water guiding body, shuts off water to the vaporizing chamber 5 and vaporizes. When the chamber 5 is reheated and reaches a temperature at which steam can be generated or more, the passage of the water guide is opened and steam is generated again (see, for example, Patent Document 1).
JP 2004-129921 A

  However, in the conventional steam iron, as shown in FIG. 4, the wall surface that partitions the thermally responsive on-off valve device 9 and the outlet portion 11 is composed of two walls, a first wall surface 12 and a second wall surface 13. Since the on-off valve device 9 and the outlet portion 11 are separated from each other, when steam is generated, the heat sensitivity near the outlet portion 11 is deteriorated, and the responsiveness of the thermally responsive on-off valve device 9 is insufficient, and the vaporizing chamber Even if the vaporization capability of No. 5 becomes insufficient, it becomes difficult to immediately close the passage of the water conduit, and in the worst case, there is a problem that water leaks from the steam hole 6.

  An object of the present invention is to solve the conventional problems described above, and to provide a steam iron that can be safely ironed without water leakage.

  In order to solve the above-described conventional problems, a steam iron according to the present invention includes a base heated by a heater, a vaporization chamber formed in the base to generate steam, a plurality of steam holes for ejecting steam, and water. A water tank for storing, a water conduit for guiding water from the water tank to the vaporization chamber, and the water conduit disposed in the vaporization chamber, and opening the water conduit only when the vaporization chamber is heated above the vaporization temperature of water A thermally responsive on-off valve device that holds water in a state and allows water to pass therethrough, and the vaporization chamber includes a dripping portion where water from the water guide body is dripped, and an outlet portion that discharges steam into the steam hole. A thermal responsive on-off valve device, which is configured by partitioning the thermal responsive on-off valve device and the dropping portion and between the thermal responsive on-off valve device and the outlet portion with only one wall surface. And dripping part, outlet Since the heat sensitivity of the water is improved and the passage of the water guiding body is opened and closed quickly following the temperature change of the vaporization chamber, water is not supplied to the vaporization chamber whose temperature is lower than the vaporization temperature of water. A steam iron that can be safely ironed without leakage can be provided.

  The steam iron of the present invention includes a base heated by a heater, a vaporization chamber formed in the base for generating steam, a plurality of steam holes for ejecting steam, a water tank for storing water, and the water tank A water conduit for guiding water from the water to the vaporization chamber, and the water conduit disposed in the vaporization chamber, and holding the water conduit in an open state only when the vaporization chamber is heated to a temperature equal to or higher than the vaporization temperature of water, A thermally responsive on-off valve device for allowing passage, wherein the vaporizing chamber includes a dripping portion into which water from the water guide body is dripped, and an outlet portion for discharging steam into the steam hole. A first wall surface is formed between the dripping portion, a second wall surface is formed between the thermally responsive on-off valve device and the outlet portion, and a third wall surface is formed between the dropping portion and the outlet portion. And connecting the first to third wall surfaces The connecting portion is disposed within a triangular range formed by connecting the centers of the thermally responsive on-off valve device, the dropping portion, and the outlet portion, and changes in the heat of the dropping portion and the outlet portion respectively. The heat responsive on-off valve device reacts immediately and the water passage is opened and closed instantly, so that water is not supplied to the vaporization chamber whose temperature is lower than the vaporization temperature of water, and there is no water leakage. A steam iron that can be ironed can be provided.

  The steam iron according to the present invention can quickly follow the temperature change of the vaporizing chamber and open and close the thermally responsive on-off valve device to perform safe ironing without water leakage.

  The first invention includes a base heated by a heater, a vaporization chamber formed in the base for generating steam, a plurality of steam holes for ejecting steam, a water tank for storing water, and water from the water tank. A water guide that leads to the vaporization chamber, and heat that is disposed in the vaporization chamber, holds the water guide in an open state only when the vaporization chamber is heated above the vaporization temperature of water, and allows water to pass through. A reaction opening / closing valve device, and the vaporization chamber includes a dropping portion into which water from the water guide body is dropped, and an outlet portion for discharging steam into the steam hole, and the thermally responsive opening / closing valve device and the dropping And the heat-responsive on-off valve device and the outlet portion are each partitioned by a single wall surface, and the heat-sensitive on-off valve device, the dropping portion, and the heat sensitivity of the outlet portion are Improved, the temperature change in the vaporization chamber To provide a steam iron that can be safely ironed without water leakage, because the passage of the water guide body is opened and closed and water is not supplied to the vaporization chamber whose temperature is lower than the vaporization temperature of water. Can do.

  In the second invention, in particular, the thermally responsive on-off valve device of the first invention and the outlet portion are provided adjacent to each other with only one wall surface interposed therebetween. It is possible to provide a steam iron in which the apparatus reacts immediately and the passage of the water guide body is instantly opened and closed so that safe ironing can be performed without water leakage.

  According to a third aspect of the present invention, there is provided a base heated by a heater, a vaporization chamber formed in the base for generating steam, a plurality of steam holes for ejecting steam, a water tank for storing water, and water from the water tank. A water conduit that leads to the vaporization chamber, and heat that is disposed in the vaporization chamber and that keeps the water conduit open and allows water to pass only when the vaporization chamber is heated above the vaporization temperature of water. A reaction opening / closing valve device, and the vaporization chamber includes a dropping portion into which water from the water guide body is dropped, and an outlet portion for discharging steam into the steam hole, and the thermally responsive opening / closing valve device and the dropping A first wall surface is formed between the portions, a second wall surface is formed between the thermally responsive on-off valve device and the outlet portion, and a third wall surface is formed between the dripping portion and the outlet portion. , Connecting the first to third wall surfaces with the thermal response The on-off valve device is disposed within a triangular range formed by connecting the centers of the dripping portion and the outlet portion. A steam iron that can react safely and instantly opens and closes the passage of the water conduit, so that water is not supplied to the vaporization chamber whose temperature is lower than the vaporization temperature of water and can be safely ironed without water leakage. Can be provided.

  In the fourth invention, in particular, the heater according to any one of the first to third inventions is bent at a bent portion to be substantially U-shaped, and a thermally responsive on-off valve device is provided close to the bent portion. The heat responsive on-off valve device, the dripping part, and the outlet part approach the bent part with a large amount of heat, and can provide a stable steam that does not cause water leakage, and the time for vaporizing the water because of the large amount of heat. It is possible to provide a steam iron that is long, increases the use time, and is easy to use.

  In the fifth aspect of the invention, in particular, a plurality of guide ribs are provided in the vaporization chamber from the dropping part to the outlet part of any one of the first to fourth aspects of the invention. Therefore, it is possible to provide a steam iron that can be safely ironed without leaking water.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is a plan view showing a vaporizing chamber of a steam iron according to the first embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views of main parts of the steam iron.

  1, 2, and 3, the iron body 1 of the steam iron generates a normal steam on the base 4 that is heated by a heater 3 that is bent at a bent portion 2 and is substantially U-shaped, and on the upper surface of the base 4. A vaporizing chamber 5 to be discharged, a steam hole 6 for jetting steam generated from the vaporizing chamber 5 to the lower surface of the base 4, a water tank 7 for supplying water to the vaporizing chamber 5, and water from the water tank 7 to the vaporizing chamber 5. A water guide body 8 and a thermally responsive valve opening / closing device 9 that is disposed in the vaporization chamber 5 and holds the water guide body 8 in an open state only when the vaporization chamber 5 is heated to a temperature equal to or higher than the vaporization temperature of water and allows water to pass through. A dripping portion 10 where water is dripped from the water guiding body 8, an outlet portion 11 for discharging steam into the steam hole 6, a first wall surface 12 disposed between the thermally responsive on-off valve device 9 and the dripping portion 10, The second valve disposed between the thermally responsive on-off valve device 9 and the outlet 11 A connecting portion that connects the three wall surfaces of the wall surface 13, the third wall surface 14 disposed between the dropping portion 10 and the outlet portion 11, the first wall surface 12, the second wall surface 13, and the third wall surface 14. 15.

  The thermally responsive valve opening / closing device 9 is disposed opposite to the valve body 17 that opens and closes the opening 16 of the water guide body 8 and the lower side of the water tank 7, and is opposed to the lower end of the valve body 17. 5, a heat-responsive bimetallic member 18 that is bent to sense the heat of the vaporizing chamber 5 and rapidly reverses, and is linked to the lower end of the valve body 17 and the substantially central portion of the heat-responsive member 18. And a valve body spring 19 that urges the valve body 17 in the direction of closing the opening 16.

  The thermally responsive on-off valve device 9 and the outlet portion 11 are disposed adjacent to each other, and the thermally responsive on-off valve device 9 is disposed close to the bent portion 2 of the heater 3.

  A plurality of guide ribs 20 are disposed inside the vaporizing chamber 5 from the dropping part 10 to the outlet part 11.

  Since the other structure is the same as that of the conventionally well-known steam iron, detailed description is abbreviate | omitted.

  The operation and operation of the steam iron configured as described above will be described below.

  The basic operation as a steam iron is the same as that well known in the art, and a detailed description thereof will be omitted.

  When ironing with steam jetting, when the vaporizing chamber 5 is heated to a temperature equal to or higher than the vaporization temperature of water, the thermal reaction member 18 senses the temperature of the vaporizing chamber 5 and moves upward so as to leave the vaporizing chamber 5. The reversal operation is performed, and the valve body 17 is pushed upward against the biasing force of the valve body spring 19 to open the opening 16 of the water guide body 8.

  Then, the water in the water tank 7 is supplied to the vaporizing chamber 5 through the water guide body 8, where steam is generated, and the steam is ejected from the steam hole 6 through the outlet portion 11. When the vaporizing chamber 5 in the vicinity of the dropping unit 10 or the outlet unit 11 is below the vaporization temperature of water during use, the thermally responsive on-off valve device 9, the dropping unit 10, and the outlet unit 11 are configured by only one wall surface. Therefore, the thermal sensitivity of the heat responsive member 18 of the heat responsive on-off valve device 9 is improved, and the passage of the water guide body 8 can be quickly opened and closed by following the temperature change of the vaporization chamber 5 without water leakage. A steam iron that can be safely ironed can be provided.

  Further, the heat responsive on-off valve device 9 and the outlet portion 11 are provided adjacent to each other with only one wall surface interposed therebetween, so that the heat responsive member 18 of the heat responsive on-off valve device 9 can immediately respond to changes in heat near the outlet portion 11. In response, the passage of the water guide 8 can be opened and closed, so that a steam iron that can be safely ironed without water leakage can be provided.

  In addition, a first wall surface 12 is configured between the thermally responsive on-off valve device 9 and the dropping portion 10, and a second wall surface 13 is configured between the thermally responsive on-off valve device 9 and the outlet portion 11, 10 and the outlet portion 11, the third wall surface 14 is configured, and the connection portion 15 connecting the three wall surfaces of the first to third wall surfaces 12 to 14 is connected to the thermally responsive on-off valve device 9 and the dropping portion 10. And within the range of triangles (thin lines in FIG. 1) formed by connecting the respective centers of the outlet portions 11, the heat-responsive on-off valve device 9 can respond to changes in the heat of the dropping portion 10 and the outlet portion 11 respectively. Since the heat-responsive member 18 can react immediately and opens and closes the passage of the water guide body 8, a steam iron that can be safely ironed without water leakage can be provided.

  Further, since the thermally responsive on-off valve device 9 is provided close to the bent portion 2 of the heater 3 bent in a substantially U shape, the thermally responsive on-off valve device 9, the dropping portion 10, the outlet The portion 11 will approach and provide a stable steam that does not cause water leakage, and since there is a large amount of heat, the time to vaporize water becomes longer, the usage time increases, and an easy-to-use steam iron is provided. it can.

  Also, by providing a plurality of guide ribs 20 inside the vaporizing chamber 5 from the dropping part 10 to the outlet part 11, a passage for vaporizing water becomes long, and a steam iron that can be safely ironed without water leakage is provided. it can.

  As described above, since the steam iron according to the present invention has only one wall surface that separates the thermally responsive on-off valve device and the dropping portion, and the thermally responsive on-off valve device and the outlet portion, the thermally responsive on-off valve device, the dropping portion, and the outlet are provided. The heat sensitivity of the part improves, and the passage of the water guide is opened and closed quickly following the temperature change of the vaporization chamber, so there is no water leakage and it is easy to use, and it is a steam iron for home use and business use Widely applicable to.

The top view which shows the vaporization chamber of the steam iron in Embodiment 1 of this invention Cross section of the main part of the steam iron (thermally responsive on-off valve device and outlet) Cross section of the main part of the steam iron Plan view showing the internal structure of a conventional steam iron

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Iron main body 2 Bending part 3 Heater 4 Base 5 Vaporization chamber 6 Steam hole 7 Water tank 8 Water guide body 9 Thermally responsive on-off valve apparatus 10 Dripping part 11 Outlet part 12 1st wall surface 13 2nd wall surface 14 3rd wall surface 15 Connection part 16 Opening part 17 Valve body 18 Thermally responsive member 19 Valve body spring 20 Guide rib

Claims (5)

A base heated by a heater; a vaporization chamber formed on the base for generating steam; a plurality of steam holes for ejecting steam; a water tank for storing water; and a water guide for guiding water from the water tank to the vaporization chamber And a thermally responsive on-off valve device that is disposed in the vaporizing chamber, holds the water guide body in an open state only when the vaporizing chamber is heated to a temperature equal to or higher than the vaporization temperature of water, and allows water to pass therethrough. The vaporizing chamber includes a dripping portion into which water from the water guide body is dripped, an outlet portion for discharging steam into the steam hole, and between the thermally responsive on-off valve device and the dripping portion, and A steam iron in which each of the thermally responsive on-off valve device and the outlet is partitioned by a single wall surface. The steam iron according to claim 1, wherein the thermally responsive on-off valve device and the outlet portion are provided adjacent to each other with only one wall surface interposed therebetween. A base heated by a heater; a vaporization chamber formed on the base for generating steam; a plurality of steam holes for ejecting steam; a water tank for storing water; and a water guide for guiding water from the water tank to the vaporization chamber And a thermally responsive on-off valve device that is disposed in the vaporization chamber and holds the water conduit in an open state only when the vaporization chamber is heated to a temperature equal to or higher than the vaporization temperature of water and allows water to pass therethrough. The vaporizing chamber includes a dripping portion into which water from the water guide body is dripped, and an outlet portion for discharging steam into the steam hole, the first being between the thermally responsive on-off valve device and the dripping portion. A second wall surface is formed between the thermally responsive on-off valve device and the outlet portion, a third wall surface is formed between the dripping portion and the outlet portion, and the first to third portions are formed. A connecting part for connecting the wall surface of Steam iron whose serial dropping unit and is disposed within the triangular range formed by connecting the centers of the outlet portion. The steam iron according to any one of claims 1 to 3, wherein the heater is bent at a bent portion to have a substantially U shape, and a thermally responsive on-off valve device is provided close to the bent portion. The steam iron according to any one of claims 1 to 4, wherein a plurality of guide ribs are provided in a vaporization chamber extending from the dropping portion to the outlet portion.