JPS6042759B2 - steam iron - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a steam iron for removing wrinkles from clothing and the like.

BACKGROUND OF THE INVENTION Conventionally, this type of steam iron was developed, for example, in the 1970s.
As shown in Japanese Patent No. 16153, the tank and the nozzle are sealed together by packing, and the water in the tank is supplied to the vaporization chamber through the nozzle. A connecting tube is watertightly fixed to the inner and outer surfaces of the bottom of the nozzle through packing, and is projected toward the nozzle to connect the connecting tube and the nozzle with the packing.

Problems to be Solved by the Invention However, with such a structure, when the tank is made of thermoplastic resin, there is a problem in that the tank is overheated by the heat from the base side, which is heated to a high temperature.

This is due to the following reasons. In other words, although the tank is provided with a space above the base, the connecting pipe attached to the bottom of the tank extends toward the base, and its tip is inserted into the nozzle. The heat is transferred to the tank side through this connecting pipe.

In other words, the packing only has the role of watertightly sealing the nozzle and the connecting pipe, and has very little effect on preventing heat conduction to the tank.Also, by using the connecting pipe, The structure of the tank is becoming more and more complex, with packing being constructed on the inside and outside of the bottom of the tank.Means for solving the problems and technical means of the present invention for solving the above problems are as follows: The nozzle and the bottom of the tank are directly sealed and connected by a cylindrical member made of a low thermal conductivity material such as heat-resistant rubber by penetrating the resin heat shield plate placed between the base and the outer periphery of the cylindrical member. It is supported by a heat shield.

action The effect of this technical means is as follows.

In other words, the cylindrical member is made of heat-resistant rubber or the like with low thermal conductivity, and is provided by penetrating the resin heat shield plate and extending to the bottom of the tank. The heat is blocked by the heat shield plate and the cylindrical member and is difficult to be transmitted to the tank. In addition, since the outer periphery of the cylindrical member is surrounded and supported by the heat shield plate, the heat transferred from the base to the cylindrical member via the nozzle is dispersed by the heat shield plate. This makes it possible to further reduce heat conduction to the tank. This result shows that even if the tank is made of thermoplastic resin, the tank will not be overheated and can be maintained at a low temperature. Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In Figs. 1 to 4, reference numeral 1 denotes a base in which a heater 2 is embedded, which has a vaporizing chamber 4 closed with a lid 3 and a steam hole (not shown) for blowing out steam generated in this vaporizing chamber 4. It is something.

5 is a base cover with a nozzle 6 attached to the part facing the vaporization chamber 4; 7 is a handle for operation; 8 is a tank made of relatively heat-resistant thermoplastic resin such as polycarbonate; It is a resin heat shield plate placed between the base 1 and the tank 8 to prevent it from reaching the tank 8, and is held together with the tank 8 by the handle 7, and is attached to the handle via a cylindrical member 10, which will be described later. It is now fixed at 7.

A cylindrical member 10 with low thermal conductivity made of heat-resistant rubber or the like
The water outlet 11 at the bottom of the tank 8 and the nozzle 6 are sealed together so as to be in direct communication with each other, and are held through the heat shield plate 9, and have outward flanges 11 and 12 at the upper and lower ends. is formed.

Here, the tank 8 and heat shield plate 9 are held. When the handle 7 is attached to the base 1 side, the shielding plate 9 presses the lower flange 12 of the cylindrical member 10 against the upper end surface of the nozzle 6. The heat shield plate 9 and the tank 8 are urged upward by the repulsive force of the flange 12 and fixed to the handle 7. Reference numeral 13 indicates an opening/closing rod for the nozzle 6.

Note that the center lines of the nozzle 6 and the cylindrical member 10 often do not match due to various dimensional errors during assembly; for example,
When the lower flange 12 of the cylindrical member 10 and the upper end surface of the nozzle 6 are in simple plane contact as shown in FIG. 5, the deviation a of the center line directly appears as a change in the contact area as shown in FIG.

That is, the contact area between the flange 12 and the nozzle 6 has a different shape in the circumferential direction as shown by diagonal lines. However, the reaction force acting on the heat shield plate 9, in other words, the auxiliary force, may become unbalanced, causing local overload to be applied to the tank 8, causing cracks, or making the fixation to the handle 7 uncertain. Ta. Therefore, in this embodiment, an annular protrusion 14 is formed from the upper end surface of the nozzle 6 as shown in FIG.
When the deviation a of the center line is within a certain range, the contact area between the two is the fourth
As shown by the diagonal lines in the figure, the repulsive force can be constant in the circumferential direction, so even if there is a dimensional error, the repulsive force acts in a well-balanced manner. Even if it is a manufactured tank, cracks will not occur due to unbalanced loads, and it can be securely fixed to the handle. Effects of the Invention The present invention has a structure in which the nozzle and the tank are directly sealed together by a cylindrical member with low thermal conductivity that penetrates a heat shield plate, and the outer periphery of the cylindrical member is supported by the heat shield plate. In addition to being able to prevent heat from being transferred to the tank and causing overheating, the following effects are also achieved.

That is, in the present invention, the nozzle and the tank are directly connected with the cylindrical member, which simplifies the configuration and improves the ease of assembly, and the outer periphery of the cylindrical member is supported by a heat shield plate, so that the cylindrical member is The transferred heat can be dispersed to the heat shield plate.

Furthermore, by supporting the outer periphery between the nozzle and the tank, the connection between the two can be ensured, and the sealing effect can be enhanced.

[Brief explanation of the drawing]

Fig. 1 is a side view of a steam iron showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line AN in Fig. 1, Fig. 3 is a sectional view of the nozzle section, Fig. 4 is a top view, and Fig. 5 is a sectional view of the nozzle section. The figure is a sectional view of a nozzle section for comparison with the present invention, and FIG. 6 is a top view thereof. 1... Base, 4... Vaporization chamber, 6...
...Nozzle, 7...Handle, 8...
Tank, 9... Heat shield plate, 10... Cylindrical member.

Claims (1)

[Claims] 1. A base having a vaporization chamber, a nozzle provided opposite to the vaporization chamber, a tank made of a thermoplastic resin that supplies water to the vaporization chamber via the nozzle, and this tank. A heat shield plate made of resin is arranged between the bases, and a cylindrical member with low thermal conductivity such as heat-resistant rubber is provided to seal the tank and the nozzle, and the cylindrical member penetrates the heat shield plate and is connected to the nozzle. A steam iron whose outer periphery is supported by a heat shield. 2. The steam iron according to claim 1, wherein an annular protrusion is provided on the upper surface of the nozzle and connected to the cylindrical member.