JPS6016391Y2 - steam iron - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a steam iron in which a vaporizing chamber is formed in a heating base, steam is sequentially generated in the vaporizing chamber, and the steam is ejected from the lower surface of the heating base.

In this type of iron, a handle body made of synthetic resin is attached to the upper surface of the heating base, a water storage tank is provided inside the handle body, and water is sequentially dripped from the water storage tank into the vaporizing chamber of the heating base.

Conventionally, water storage tanks are made of metal materials with excellent corrosion resistance, such as stainless steel and brass.

The reason for using metal materials is that the water storage tank needs to be connected to the vaporization chamber of the heating base and water introduced into the vaporization chamber, so the high heat (around 200℃) of the heating base is conducted.
Therefore, the purpose is to withstand the heat.

However, if the water storage tank is made of metal material, its production cost will increase, and the heat of the heating base will conduct well and reach a high temperature, so when the iron is moved rapidly, etc., the water inside will flow to the high temperature wall. There is a risk that it may come into contact with the water tank and cause it to scatter and eject from the water tank's inlet/outlet.

This idea was developed with these points in mind, and its purpose was to construct the water storage tank with synthetic resin, suppress heat conduction to the water storage tank, reduce production costs, and improve water storage. The purpose is to prevent the link from overheating.

An embodiment of this invention will be described below with reference to the drawings.

The figure shows a heating base made of aluminum die-cast acid, for example, in which a heater 2 is embedded, and a vaporization chamber 3 is formed on the upper surface of the tip side of the heating base 1. The upper surface is closed by a cover plate 5.

The entire upper surface of the heating base 1 is covered with a metal cover 6,
A handle body 7 made of synthetic resin is attached to the upper part of the cover 6.

This handle body 7 has a cavity 8 that is open on its left and right sides, and this cavity 8 constitutes a grip portion 9.

A water storage tank 12 is provided inside the handle body 7, and each of the water storage tanks 12 has an upper half body 13 and a lower half body 1 molded from thermoplastic resin such as PP resin or ABS resin.
The upper half body 13 has a cylindrical introduction part 15 integrated into the upper surface of the front end side of the upper half body 13. is formed.

This water storage tank 12 serves as a heat shielding bottom plate 7 of the handle body 7.
a and the upper wall surface 7b.

The water in this water storage tank 12 is guided to the vaporization chamber 3 by a water guide member A consisting of a water guide pipe (water guide pipe section) 16, a dripping nozzle (nozzle section) 17, and the like.

That is, a water guide pipe 16 is connected to the lower surface of the front end side of the lower half body 14 of the water storage tank 12, and the water guide pipe 16 is made of, for example, PPS resin molded with a heat-resistant resin such as felt resin. It passes through the bottom plate 7a of the handle body 7 and the cover 6 to reach the upper part of the vaporization chamber 3, and the peripheral edge of its tip end face is joined to the lid plate 5 of the vaporization chamber 3 via a heat-resistant backing 16a.

The backing 1 is attached to the inner periphery of the tip of this water guide tube 16.
A drip nozzle 17 is fitted in a liquid-tight manner through the cap plate 6a, and this drip nozzle 17 passes through the lid plate 5 and faces into the vaporization chamber 3.

As a means of connecting the water guide pipe 16 and the lower half body 14 of the water storage tank 12, the water guide pipe 16 is formed in advance, and the lower half body 14 is inserted into a mold for forming the lower half body 14. Part 1
The most suitable method is the method of encasing the resin in step 4 or the method of continuous injection molding using a double mold method.

Reference numeral 18 denotes an opening/closing rod, one end of which faces into the drip nozzle 17, and the other end of which extends slidably through the upper end wall surface of the water storage tank 12 and projects above.

A reversible operation button 19 is provided near the protrusion, and this operation button 19 operates the opening/closing rod 18 up and down, and this operation opens and closes the pore at the tip of the dripping nozzle 17. .

A filling port 20 is formed on the front end wall surface of the handle body 7 and projects toward the rear, and the tip of the filling port 20 is connected to the upper wall surface of the introduction portion 15 of the water storage tank 12.

Water can be injected into the water storage tank 12 through this inlet/outlet 20, and unnecessary water can be discharged after use.

An operation knob 21 is provided on the upper front end of the handle body 7, and a temperature adjustment mechanism 22 is provided on the upper surface of the heating base 1, and these operation knobs 21 and the temperature adjustment mechanism 22 are connected by an interlocking rod 23. By interlockingly operating the temperature adjustment mechanism 22 via the operation knob 21, the heating base 1 can be set to a desired temperature.

In the steam iron configured in this way, when the opening/closing rod 18 is operated via the operation button 19 and the water in the water storage tank 12 is sequentially dripped into the vaporizing chamber 3 from the dripping nozzle 17,
This dripping water becomes steam due to the heat of the heating base 1, and this steam is ejected from the ejection holes 4 on the lower surface of the heating base 1.

The vaporization chamber 3 of the heating base 1 reaches a temperature of about 200°C, and therefore the water guide pipe 16 that contacts this vaporization chamber 3 via the lid plate 5 is also heated to a temperature of about 200°C.

However, the water guide pipe 16 is made of heat-resistant resin and can therefore withstand the temperature sufficiently.

The heat in the vaporization chamber 3 is transferred to the water storage tank 12 through the water guide pipe 16, but since the water guide pipe 16 is molded with resin, its thermal conductivity is poor, and therefore the temperature of the water storage tank 12 is approximately 100°C at most. temperature rises only to .

Therefore, the water storage tank 12 can be constructed using an inexpensive thermoplastic resin with a low heat resistance, thereby making it possible to significantly reduce production costs compared to conventional metals.

Furthermore, since the temperature of the water storage tank 12 only rises to about 100 degrees Celsius, even if the iron is moved rapidly and the water in the water storage tank 12 comes into contact with the wall surface, it will not scatter in the form of droplets. There is no possibility of such a situation in which droplets in the form of water droplets are ejected from the water inlet 20.

As explained above, according to this invention, it is possible to reduce the production cost, and it is also possible to suppress the rise in temperature of the water storage tank and eliminate the adverse effects associated with it.

[Brief explanation of the drawing]

The figure is a sectional view showing an embodiment of this invention. 1... Heating base, 3... Vaporization chamber, 1
2...Water storage tank, A...Water guide member, 16...Water guide pipe section (water guide pipe), 17...
...Nozzle part (dropping nozzle).

Claims (1)

[Scope of utility model registration request] In the device in which water is vaporized and turned into steam and is ejected from the lower surface side of the heating base, the water storage tank is provided at a distance from the heating base, the vaporization chamber is formed in the heating base, and the vaporization chamber is connected to the vaporization chamber. A water guiding member for guiding water from a water storage tank, the water guiding member having a nozzle portion facing the vaporization chamber, and a water guiding pipe portion connecting the nozzle portion and the water storage tank, and The steam iron is characterized in that the water storage tank is made of thermoplastic resin, and the water guiding member is small (both the water guiding pipe portion is made of heat resistant resin).