JP3728772B2 - Spray iron - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a spray-type iron used for wrinkling clothing and the like in a general household.
[0002]
[Prior art]
Ironing requires three elements of “temperature”, “moisture”, and “pressure”, and steam irons that satisfy these elements are becoming increasingly popular. However, plant fibers such as cotton and linen are not effective with steam, and more water is often required. For this reason, spray-type irons have become widespread in recent years. As this type of spray-type iron, one having a configuration as shown in FIG. 4 is generally used. Hereinafter, the configuration will be described.
[0003]
Reference numeral 101 denotes an iron base for stretching the wrinkles of clothing, and reference numeral 102 denotes a handle attached to the upper surface of the iron base 101. The handle 102 includes a water tank 103. Reference numeral 104 denotes a cylinder having a check valve 105 at the bottom and a fountain port 106. Reference numeral 107 denotes a nozzle that protrudes outward through the front wall of the handle 102, and is connected to the fountain port 106 through a water conduit 108. A piston 109 is slidably inserted into the cylinder 104 so that its upper end protrudes outwardly from the cylinder 104. The piston 111 is fixed to the upper end, and a spring 111 contracted between the cylinder 104 and constantly rises. Is energized. Reference numeral 112 denotes a push button that freely protrudes and retracts from a through hole 113 in the upper part of the handle 102, and its lower surface is engaged with the upper end of the piston 109.
[0004]
With the above configuration, it operates as follows. When the handle 102 is held and the push button 112 is pressed with the thumb, the piston 109 moves down in the cylinder 104 against the spring 111. When the piston 109 is lowered in the cylinder 104, the water in the cylinder 104, since the check valve 105 is closed, through a fountain port 106, through water pipe 108 according to the descent of the piston 109, the front of the handle from the nozzle 107 102 Sprayed on clothing performing ironing.
[0005]
Next, when the pressing force with respect to the push button 112 is removed, the piston 109 moves up in the cylinder 104 by the spring 111. As a result, the pressure in the cylinder 104 becomes a negative pressure from the water tank 103. Therefore, the water in the water tank 103 is sucked into the cylinder 104 while opening the check valve 105. Therefore, the cylinder 104 is again filled with water, and the check valve 105 is closed again.
[0006]
When the push button 112 is pressed again in this state, the water in the cylinder 104 is sprayed from the nozzle 107 in the same manner as described above. In this way, by repeatedly urging / releasing the pressing force to the push button 112, the cylinder 104 and the piston 109 perform a pump action to spray water in the water tank 103.
[0007]
[Problems to be solved by the invention]
However, in the conventional configuration, the particle size of the mist sprayed from the nozzle 107 is as large as 100 μm or more. For this reason, water droplet unevenness is easily generated on the sprayed clothing surface, which causes a stain after ironing.
[0008]
The present invention is intended to solve the problems of such a conventional configuration, and can achieve uniform and uniform spraying continuously and achieve a good finished state of ironing clothes. it is an purpose of providing a spray iron can.
[0009]
[Means for Solving the Problems]
This onset bright for achieving the above object, the guides and the iron soleplate having a heater and the vaporization chamber, and a water tank for storing the water supplied to the vaporizing chamber, the steam generated in the vaporizing chamber to the steam holes and one steam passage, and a second steam passage communicating through said first steam passage and the valve body, the ejection hole provided at the tip portion of the second steam passage communicates with the water tank the comprising a headrace having an opening disposed in the vicinity of the ejection hole, and a communicating waterway which connects between said vaporization chamber and said water tank, said communication waterway includes a cylinder, sliding in the cylinder up and down and a piston biased constantly upward trend, water supply and water outlet for water absorption of water in the water tank, a first check valve provided in the water inlet, the water in the cylinder to the vaporizing chamber a water outlet for, scan generated in the vaporizing chamber The over arm and a guide Ku third steam passage in the vicinity of top dead center of the piston of the cylinder, the opening of the cylinder side of the third steam passage, steam and water into the vaporizing chamber from the cylinder a check valve provided regurgitation second you avoid the is the water in the water tank by steam generated in the vaporizing chamber that is adapted to spray from the ejection hole.
[0010]
[Action]
The present invention is to atomize the water in the water tank with the force of steam to refine the particle size of the mist, and to perform uniform and non-uniform spraying, utilizing the back pressure of the vaporization chamber In this way, a continuous spray can be obtained.
[0011]
【Example】
(Example 1)
An embodiment of the first means of the present invention will be described with reference to FIG. Reference numeral 1 denotes an iron base heated by an embedded heater 2. A base upper lid 5 that forms the upper part of the iron base 1 forms a vaporizing chamber 3 that generates steam and a steam passage 4 that communicates with the vaporizing chamber 3. Reference numeral 6 denotes a through hole formed in the iron base 1, which connects the first steam passage 7 communicating with the steam hole 8 provided in the bottom of the iron base 1 and the steam passage 4. Reference numeral 9 denotes a discharge hole provided in the base upper cover 5 so as to face the through hole 6 and is opened and closed by an on-off valve 11 fixed to the shaft 12. Reference numeral 10 denotes a switching valve made of a diaphragm valve body or the like provided on the discharge hole 9 and urges the shaft 12 in an upward trend. Reference numeral 13 denotes a second steam passage that communicates with the steam passage 4 via the switching valve 10, and an ejection hole 14 having an appropriate cross-sectional shape is provided at the extended tip. Reference numeral 15 denotes a heat insulating plate that covers the iron base 1 from above. Reference numeral 16 denotes a water tank provided at the front upper portion of the iron, and stores water to be supplied to the vaporizing chamber 3.
[0012]
In the present embodiment, a communication water passage having the following configuration is provided between the water tank 16 and the vaporizing chamber 3. That is, the communicating water channel of this embodiment communicates with a cylinder 17 having a piston 18 inserted therein so as to be slidable in the inside and a water absorbing channel 19 for absorbing water in a water tank 16 provided at the lower part of the cylinder 17. The water inlet 20, the ball valve constituting the first check valve 21 provided in the water inlet 20, and the water inlet connected to the water passage 22 for feeding the water in the cylinder 17 to the vaporizing chamber 3. 23.
[0013]
Reference numeral 24 denotes a piston shaft to which a piston 18 is fixed. The lower end is provided with a closing spring 27 that biases the first check valve 21 downward and closes the water inlet 20 when the water supply button 26 is pushed. Reference numeral 28 denotes a spring that pulls the piston shaft 24 upward, whereby the piston 18 is always urged upward. A third steam passage 29 is provided between the vaporization chamber 3 and the vicinity of the top dead center of the piston above the cylinder 17 for sending back pressure generated by the steam generated in the vaporization chamber 3 to the cylinder 17. The opening 30 on the cylinder 17 side of the third steam passage 29 has a second check valve 31 constituted by a ball valve for preventing the backflow of water and steam in the cylinder 18, and a second check valve. A closing spring 32 is provided to constantly bias 31 in the closing direction.
[0014]
The water conduit 33 communicating with the bottom of the water tank 16 has an opening 34 with a small diameter at the extended tip. In this embodiment, the position of the opening 34 is in the vicinity of the ejection hole 14 opened at the tip of the second steam passage 13 so that the steam ejected from the ejection hole 14 intersects the opening 34. . Reference numeral 35 denotes a switching lever, and a pressing spring 36 for pressing the upper end of the shaft 12 is provided at the lower end. Reference numeral 37 denotes a water inlet for pouring water into the water tank 16.
[0015]
The operation of this embodiment will be described below. First, the case where the spray type iron of this embodiment is used as a steam iron will be described. In other words, it is assumed that the user is using it for finishing wool or the like. In this case, since the switching valve 10 urges the shaft 12 to rise, the on-off valve 11 closes the discharge hole 9 and opens the through hole 6. At this time, the water in the water tank 16 is dropped into the vaporizing chamber 3 through the water absorption path 19 and the water supply path 22 due to the head difference. The water dripped into the vaporizing chamber 3 becomes steam. The steam is ejected from a steam hole 8 provided on the bottom surface of the iron base 1 through the steam passage 4, the through-hole 6, and the first steam passage 7. At this time, since the opening area of the steam hole is very large, the internal pressure of the vaporizing chamber 3 hardly increases, and the second check valve 31 provided in the opening 17 on the cylinder 17 side of the third steam passage 29 is provided. Never open. Further, since the switching lever 35 is pulled upward, the discharge hole 9 is closed and the ejection hole 14 is closed. That is, the spray of mist from the ejection hole 14 is not performed.
[0016]
Next, the case where the iron of the present embodiment is used as a spray iron suitable for ironing clothes such as cotton and linen will be described. When the switching lever 35 is pushed, the pressing spring 36 is lowered by overcoming the urging force of the switching valve 10, and the switching valve 10 is pushed down. Therefore, the on-off valve 11 opens the discharge hole 9 and closes the through hole 6. In this state, when the user holds the handle 25 and presses the water supply button 26 with the thumb, the piston 18 moves down in the cylinder 17 against the urging force of the spring 28. When the piston 18 descends in the cylinder 17, the water in the cylinder 17 is closed by the first check valve 21 and the second check valve 31. Then, it is sent into the vaporizing chamber 3. For this reason, the steam generated in the vaporization chamber 3 is concentrated and ejected from the ejection hole 14 through the second steam passage 13. At this time, the vicinity of the opening 34 provided at the extension tip of the water conduit 33 is close to the ejection hole 14, and therefore, a negative pressure is generated by the jetting power of the steam from the ejection hole 14. That is, the water in the water tank 16 rises in the water conduit 33 and is discharged from the opening 34 by an appropriate amount. This water is blown off by the steam from the ejection hole 14 and becomes a mist having a particle diameter of about 30 μm and is diffused in the direction of the ironing surface.
[0017]
When the pressing force against the water supply button 26 is removed, the piston 18 moves up in the cylinder 17 by the biasing force of the spring 28. As a result, the pressure in the cylinder 17 becomes negative from that in the water tank 16. For this reason, the water in the water tank 16 is sucked into the cylinder 17 while opening the first check valve 21. For this reason, the cylinder 17 is again filled with water, and the first check valve 21 is closed again.
[0018]
At this time, since the opening area of the ejection hole 14 is very small and the internal pressure of the vaporizing chamber 3 is increased by steam, the steam in the vaporizing chamber 3 opens the second check valve 31 via the steam passage 4. The back pressure is applied to the water filled in the cylinder 17. Therefore, the water in the cylinder 17 is pushed by this back pressure and is sent again into the vaporizing chamber 3 through the water supply port 23 and the water supply path 22. By performing the energizing and releasing one of the pressing force for such a water supply button 26, and performs automatically a continuous water supply. Therefore ejection of steam from the ejection hole 14 becomes to be performed a fixed regardless of variations in the pressure of the vaporizing chamber 3, once in operation of the water supply button 26 to continue communicating a fine mist of particle size It can be sprayed and a uniform finish without unevenness can be obtained.
[0019]
(Example 2)
Next, an embodiment of the second means of the present invention will be described with reference to FIG. In FIG. 2, reference numerals 1 to 28 and 33 to 37 denote members similar to those described with reference to FIG. In this embodiment, the third steam passage 29, the second check valve 31 and the closing spring 32 which are members for applying back pressure in the cylinder 17 in FIG. 1 are eliminated, and the piston 18 and the piston shaft 24 are newly provided. In between, a spring body 38 for biasing the piston 18 from the lower end of the piston shaft 24 in a constantly downward direction is interposed.
[0020]
The operation of this embodiment will be described below. The operation as a steam iron is the same as that in the above embodiment, and the description thereof will be omitted. The case of using as a spray iron will be described below. When the switching lever 35 is pushed, the pressing spring 36 is lowered by overcoming the urging force of the switching valve 10, and the switching valve 10 is pushed down. Therefore, the on-off valve 11 opens the discharge hole 9 and closes the through hole 6. In this state, when the handle 25 is grasped and the water supply button 26 is pressed with the thumb, the piston shaft 24 descends against the urging force of the spring 28 and the spring body 38 is compressed. The compressed spring body 38 urges the piston 18 in the downward direction, and the piston 18 gradually descends in the cylinder 17. At this time, since the first check valve 21 is closed, the water in the cylinder 30 is gradually sent into the vaporizing chamber 3 through the water supply port 23 and the water supply path 22 as the piston 18 descends.
[0021]
When the drive spring 38 is fully extended and the piston 18 reaches the lower end and the pressing force against the water supply button 26 is removed, the piston 18 moves up in the cylinder 17 by the spring 28. As a result, the pressure in the cylinder 17 becomes negative from that in the water tank 16. For this reason, the water in the water tank 16 is sucked into the cylinder 17 while opening the first check valve 21. For this reason, the cylinder 17 is again filled with water, and the first check valve 21 is closed again.
[0022]
When the water supply button 26 is pressed again in this state, the water in the cylinder 17 is gradually supplied to the vaporizing chamber 3 as described above. In this way, by repeatedly urging and releasing the pressing force on the water supply button 26, the cylinder 17 and the piston 18 perform a pumping action to supply water in the water tank 16.
[0023]
In this way, the water sent into the vaporizing chamber 3 becomes steam in the vaporizing chamber 3 as in the first embodiment, and is concentrated and ejected from the ejection holes 14. The water discharged from the opening 34 is atomized by the force of the steam and is adsorbed by the clothing in front of the iron base 1. In this way, it can be used as a spray-type iron suitable for extending stubborn wrinkles of clothing such as cotton and linen.
[0024]
By the way, in this case, the piston 18 is gradually lowered by the spring body 38 so that the water in the cylinder 17 is supplied. Therefore, if the diameter of the cylinder 17 is increased, the water supply button 26 can be pressed once. A long and stable continuous spray can be obtained, and a uniform and good finished state of clothing can be obtained.
[0025]
Further, if the water supply button 26 can be locked at the lower end, it becomes a spray-type iron that is more convenient to use.
[0026]
(Example 3)
Next, an embodiment of the third means of the present invention will be described with reference to FIG. In FIG. 3, 1 to 28 and 33 to 38 are members similar to those used in the second embodiment. In the present embodiment, a fourth steam passage 39 is provided between the vaporization chamber 3 and the upper top dead center of the piston 38 above the cylinder 17 for sending back pressure generated by the steam generated in the vaporization chamber 3 to above the piston 19. Provided. A seal body 40 is provided between the upper end of the cylinder 17 and the piston shaft 24 to keep the cylinder 17 sealed.
[0027]
The operation of this embodiment will be described below. As in the second embodiment, the water sent into the vaporizing chamber 3 becomes steam in the vaporizing chamber 3 and is concentrated and ejected from the ejection holes 14. The water discharged from the opening 34 is atomized by the momentum of the steam and is adsorbed by the clothing in front of the iron base 1. In this way, it can be used as a spray-type iron suitable for extending stubborn wrinkles of clothing such as cotton and linen.
[0028]
In this case, the water in the cylinder 17 is drained by gradually lowering the piston 18 by the back pressure of the steam and the force of the drive spring 38 sent into the cylinder 17 from the lower chamber 3 through the third steam passage 39. Since it is configured to supply water, if the diameter of the cylinder 17 is increased, it is possible to obtain a continuous spray for a long time with a single pressing operation of the water supply button 26 and to stabilize by smooth movement of the piston 18 due to back pressure. Spray is obtained. Therefore, a more uniform and good finished state of clothing can be obtained.
[0029]
Further, if the water supply button 26 can be locked at the lower end, it becomes a spray-type iron that is more convenient to use.
[0030]
【The invention's effect】
Spray iron of the present invention, the iron soleplate having a heater and the vaporization chamber, and a water tank for storing the water supplied to the vaporizing chamber, a first steam passage for guiding steam generated in the vaporizing chamber to the steam holes , a second steam passage communicating through said first steam passage and the valve body, the ejection hole provided at the tip portion of the second steam passage, in the vicinity of the water tank and communicating the ejection hole a headrace having an arrangement with openings, and a communication water passage connecting between said vaporization chamber and said water tank, said communication waterway includes a cylinder, always rise slides within the cylinder in a vertical and biased by a piston, a water inlet for water absorption of water in the water tank, a first check valve provided in the water inlet, a water outlet for water to water in the cylinder to the vaporizing chamber, before the steam generated in the vaporizing chamber And a conductive Ku third steam passage in the vicinity of top dead center of the cylinder of the piston, the opening of the cylinder side of the third steam passages, preventing reverse flow of steam and water to the vaporizing chamber from the cylinder a second check valve you provided, because the water in the water tank by steam generated in the vaporizing chamber to spray from the jet holes, be carried out without spray unevenness uniform continuous And a good finished state of the ironing garment can be realized .
[Brief description of the drawings]
FIG. 1 is a sectional side view of a spray iron in a first embodiment of the present invention. FIG. 2 is a sectional side view of a spray iron in a second embodiment of the present invention. FIG. 4 is a side sectional view of a spray-type iron in an embodiment. FIG. 4 is a side sectional view showing a conventional spray-type iron.
DESCRIPTION OF SYMBOLS 1 Iron base 2 Heater 3 Vaporization chamber 7 1st steam path 10 Switching valve 13 2nd steam path 16 Water tank 17 Cylinder 18 Piston 20 Water inlet 21 First check valve 23 Water supply port 29 3rd steam path 31 Second check valve 33 Water conduit 38 Spring body 39 Fourth steam passage 40 Seal body

Claims (1)

And iron soleplate having a heater and the vaporization chamber, and a water tank for storing the water supplied to the vaporizing chamber, a first steam passage for guiding steam generated in the vaporizing chamber to the steam holes, and the first steam passage A water conduit having a second steam passage communicating with the valve body, an ejection hole provided at the tip of the second steam passage, and an opening disposed in the vicinity of the ejection hole in communication with the water tank When, a communication water passage connecting between said vaporization chamber and said water tank, said communication waterway includes a cylinder, a piston biased constantly upward trend slides within the cylinder vertically, the a water inlet for water absorption of water in the water tank, a first check valve provided in the water inlet, a water outlet for water to water in the cylinder to the vaporizing chamber, the steam generated in the vaporizing chamber top dead piston of the cylinder And a conductive Ku third steam passage in the vicinity of, the third to the opening of the cylinder side of the steam passage, a second check that to prevent reverse flow of steam and water to the vaporizing chamber from the cylinder A spray type iron provided with a valve so that the water in the water tank is sprayed from the ejection hole by steam generated in the vaporization chamber .

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