JP2000157390A - Double layer mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double layer mirror having a surface which does not become cloudy in a short time even if clouding inhibitor is not applied. SOLUTION: A plate glass 1 and a mirror plate 2 are laminated by sealing the periphery of an air layer 3 in a condition in which the air layer 3 is formed between a rear surface 1b of the plate glass and a surface 2a of the mirror plate. The air layer 3 is shut off from the outside, and water content does not adhere (dew condensation) on the surface 2a of the mirror plate, namely, it does not become cloudy because the air hardly contains the water content and is dry. An image is formed by the mirror plate 2 through the plate glass 1 in a less distortion condition. When the water content is likely to adhere on a surface 1a of the plate glass, the plate glass 1 can suppress the adhesion of the water content on the surface 1a of the plate glass due to the presence of the air layer 3 causing less temperature change so that the surface 1a of the plate glass does not become cloudy in a short time and the surface 2a of the mirror plate does not become cloudy readily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-layer mirror provided in a bathroom or a lavatory, for example.

[0002]

2. Description of the Related Art Conventionally, mirrors provided in bathrooms, washrooms, and the like have been configured to use only one-layer (single-layer) mirror plates. When such a mirror is disposed in a bathroom, for example, steam (moisture) adheres (condensation) to the surface of the head plate, and this surface becomes fogged in a short time. Especially when using the shower,
The surface of the head plate becomes fogged in a shorter time. Thus, the intended image formation of the mirror cannot be performed when it is most needed. In order to cope with such a situation, hot water or water is applied to the surface of the head plate to wash it away, so that it can be quickly restored to its original state, or an anti-fogging agent is previously applied to the surface of the head plate by a spray method. .

[0003]

However, even if hot water or water is applied to the surface of the end plate to wash it away as in the former case, the hot water and water are frequently returned because the temperature rises in the bathroom and the state immediately returns to a cloudy state. You have to call it and it is troublesome. In addition, when the antifogging agent is applied as in the latter case, the effect is about one week. Therefore, in this case, the application work must be performed periodically, which is troublesome and further prevents the fogging. The agent is expensive when the total amount of the agent is used.

Accordingly, an object of the present invention is to provide a multilayer mirror which does not have an anti-fogging agent applied thereto, but whose surface is not easily fogged in a short time.

[0005]

In order to achieve the above-mentioned object, in the double-layer mirror according to the first aspect of the present invention, an air layer is formed between a glass plate and a mirror plate, and between the glass plate rear surface and the glass plate surface. In this state, the periphery of the air layer is sealed and laminated.

Therefore, according to the first aspect of the present invention, the air layer is shut off from the outside, and the air is in a dry state containing almost no water, so that moisture adheres (condensation) to the surface of the head plate, that is, it becomes cloudy. Is less likely to occur. The image formation by the mirror plate is performed with little distortion through the glass plate. When moisture easily adheres to the surface of the sheet glass, the sheet glass can suppress the adhesion of moisture to the sheet glass surface due to the presence of an air layer with a small temperature change. The surface also becomes less cloudy.

According to a second aspect of the present invention, there is provided the double-layer mirror according to the first aspect, wherein a heating element is provided on at least a part of the periphery of the rear surface of the glass sheet. It is a characteristic.

Therefore, according to the second aspect of the present invention, the surface temperature of the sheet glass is increased by direct heating by the heating element and indirect heating through the heated air layer, and water droplets adhering to the surface are evaporated. The heating element may be placed in a dry air layer that contains little moisture.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In the plate glass 1 made of a square (rectangular) transparent glass, one surface located outside is the front surface 1a and the other surface is the back surface 1b. The rectangular (rectangular) mirror plate 2 has a front surface 2a facing the back surface 1b of the glass sheet 1 and a reflection film 2b serving as the back surface is located inside.

In this state, the glass sheet 1 and the mirror plate 2 which are positioned opposite to each other are composed of the rear surface 1 b of the glass sheet 1 and the mirror plate 2.
In a state where the air layer 3 is formed between the air layer 3 and the surface 2a, the periphery of the air layer 3 is sealed and laminated. This sealed lamination is formed by interposing a waterproof adhesive layer 4 in a window frame shape between the back surface 1b of the glass sheet 1 and the front surface 2a of the end plate 2. Here, the thickness of the plate glass 1 and the end plate 2 is 2
The thickness of the air layer 3 is set to 1 to 5 mm.

On the back surface 1b of the glass sheet 1, a heating element 6 is arranged around the back surface 1b. The heating element 6 is formed of a sheet heater such as a carbon heater, a conductive wire, an electric heating plate, or the like, and is disposed inside the adhesive layer 4 as a window frame.
It is sufficient that the heating element 6 is disposed at least in a part of the periphery. Therefore, in addition to the window frame shape, a gate shape, a U shape,
A pair of right and left may be a straight line in the vertical direction, a pair of upper and lower lines may be a straight line in the horizontal direction, or any one of the straight lines.

The glass sheet 1 and the mirror plate 2 are formed by the adhesive layer 4.
Before bonding (lamination) of the adhesive layer 4 and the inner surface side of the adhesive layer 4, a dried body 5 is disposed. The dried body 5 is formed by packing a desiccant 5B in a breathable bag 5A. And the dried body 5 has no gap on the inner surface side of the adhesive layer 4,
Alternatively, they are arranged at predetermined intervals, and at that time, fixing is performed by utilizing the adhesive force of the adhesive layer 4 or the like.

The outer periphery of the laminate is made of resin, rubber,
A cover body 7 made of water-resistant metal or the like is externally fitted. At this time, the shape and dimensions of the cover body 7 are set such that the drying body 5 and the heating element 6 are not visible from the surface 1a side of the sheet glass 1 (it is difficult to see). As described above, an example of the multilayer mirror 8 is configured.

The multi-layer mirror 8 has a recess 10A formed in the wall 10 of the bathroom, as shown by a virtual line in FIG. 3, for example.
And is fixed via an appropriate fixing tool 11.
The operation of the first embodiment will be described below.

In the multi-layer mirror 8, the air layer 3 is shut off from the outside, and the air is in a dry state containing almost no moisture, so that moisture adheres to the surface 2a of the end plate 2 (condensation), That is, fogging hardly occurs.
In addition, the drying of the air is promoted by the drying body 5 exposed and disposed in the air layer 3. The image formation by the mirror plate 2 is performed with little distortion through the glass plate 1.

When steam rises inside the bathroom and tries to adhere to the surface 1a of the plate glass 1, the presence of the air layer 3 with a small temperature change causes the plate glass 1 to lose moisture (condensation) on the surface 1a of the plate glass 1. Is suppressed. Furthermore, the sheet glass 1 has its surface 1 heated by direct heating by the heating element 6 and indirect heating through the heated air layer 3.
By increasing the temperature of a, the water droplets adhering to the surface 1a are evaporated, whereby the water droplets adhering to the surface 1a can be quickly removed.

Therefore, the surface 1a of the glass sheet 1 does not fog in a short time, and the surface 2a
Will also be less cloudy. In other words, the multilayer mirror 8 does not apply the anti-fogging agent,
a (including the surface 2a of the mirror plate 2) becomes hard to fog in a short time, so that the image formation on the mirror plate 2, which is the intended purpose of the multilayer mirror 8, is clearly required when it is needed most. You can do it.

When the multilayer mirror 8 is used for a long period of time, the surface 1a of the sheet glass 1 may fog due to a rise in the temperature of the air layer 3 or the like. It can be quickly restored by flushing with water. However, as described above, since the surface 1a of the glass sheet 1 is hard to fog in a short time, it is rare to apply hot water or water. Is less and is not so troublesome.

Next, a second embodiment of the present invention will be described with reference to FIG.
It will be described based on. That is, the sealed lamination of the glass sheet 1 and the end plate 2 is performed by the metal intermediate member 12 and the adhesive 13.
And is done through. Here, the cross section of the intermediate member 12 is a square tubular shape, and is formed in a window frame shape. And while the desiccant 14 is filled using the internal space,
A large number of ventilation holes 15 are formed in the inner plate portion.

According to the second embodiment, the intermediate member 12 can ensure a sufficient strength of the whole, and can easily and more accurately form the air layer 3 between the glass sheet 1 and the end plate 2. It can be carried out. Drying material 1
4 can also be arranged more easily and neatly.

Next, a third embodiment of the present invention will be described with reference to FIG.
It will be described based on. The configuration is such that the drying body 5 is omitted from the first embodiment described above. In the same manner, a configuration in which the desiccant 14 is omitted in the second embodiment may be employed.

In the above-described first to third embodiments, the heating element 6 is provided on at least a part of the periphery of the back surface 1b of the glass sheet 1, but the heating element 6 is omitted. It may be in the form. That is, the fourth embodiment shown in FIG. 6 is a form in which the heating element 6 is omitted from the first embodiment, and the fifth embodiment shown in FIG. This is a form in which the heating element 6 is omitted from the form,
The sixth embodiment shown in FIG. 8 is a form in which the heating element 6 is omitted from the third embodiment.

According to the fourth to sixth embodiments,
When steam rises in the bathroom and tries to adhere to the surface 1a of the plate glass 1, the temperature rise of the plate glass 1 is suppressed by the presence of the air layer 3 with a small temperature change. Adhesion of water (condensation) is suppressed.

In each of the above-described embodiments, the quadrangular multilayer mirror 8 is shown, but this may be a polygonal multilayer mirror such as a pentagonal or hexagonal shape, a circular multilayer mirror, or an elliptical multilayer mirror. The outer peripheral shape of a multilayer mirror or the like can be arbitrarily changed.

In each of the embodiments described above, the multi-layer mirror 8 is provided on the wall 10 of the bathroom. Can be done. And depending on the type and configuration of the arrangement,
A multilayer mirror 8 in which the cover body 7 is omitted can also be employed.

In the above embodiments, the thickness is 2 to 5
The thickness of the air layer 3 is set to 1 to 5 mm, and the thickness of the multi-layer mirror 8 is set to 1 mm to 5 mm. Depending on the purpose, they are respectively set to 2 mm or less or 5 mm or more. In the case of a bathroom, a multilayer mirror 8 in which the thickness of the plate glass 1 and the end plate 2 is 3 mm and the thickness of the air layer 3 is 2 mm is preferable in terms of weight, strength, distortion prevention, and the like.

[0027]

According to the first aspect of the present invention, since the air layer is shielded from the outside and the air is in a dry state containing almost no moisture, moisture (dew condensation) adheres to the surface of the head plate. ), That is, it is possible to make the image hardly fogged, and the image formation by the mirror plate can be performed with little distortion through the glass plate. In a situation where moisture easily adheres to the surface of the glass sheet, this glass sheet can suppress the adhesion of water to the glass sheet surface by an air layer with little temperature change, so that the glass sheet surface does not fog in a short time and the mirror plate surface also becomes cloudy. It can be difficult. In other words, the multilayer mirror can be made such that the surface of the glass sheet (including the surface of the mirror plate) is hardly fogged in a short time while the antifogging agent is not applied. Can be clearly formed when it is needed most.

According to the second aspect of the present invention,
The direct heating by the heating element and the indirect heating through the heated air layer can raise the temperature of the surface of the sheet glass, and the water droplets adhering to this surface can be evaporated and quickly removed. The heating element can be arranged in a dry air layer containing almost no moisture without causing any leakage.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention and is a partially cutaway perspective view of a multilayer mirror.

FIG. 2 is a partially cutaway front view of the multilayer mirror.

FIG. 3 is a vertical sectional side view of a main part of the multilayer mirror.

FIG. 4 shows a second embodiment of the present invention and is a longitudinal sectional side view of a main part of a multilayer mirror.

FIG. 5 shows a third embodiment of the present invention, and is a longitudinal sectional side view of a main part of a multilayer mirror.

FIG. 6 shows the fourth embodiment of the present invention, and is a longitudinal sectional side view of a main part of a multilayer mirror.

FIG. 7 shows the fifth embodiment of the present invention, and is a longitudinal sectional side view of a main part of a multilayer mirror.

FIG. 8 shows a sixth embodiment of the present invention, and is a longitudinal sectional side view of a main part of a multilayer mirror.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheet glass 1a Surface 1b Back surface 2 End plate 2a Surface 2b Reflection film (back surface) 3 Air layer 4 Adhesive layer 5 Dry body 6 Heating body 7 Cover body 8 Multilayer mirror 10 Bathroom wall 12 Intermediate member

Claims (2)

[Claims] 1. A multi-layer mirror comprising a plate glass and a mirror plate laminated in a state where an air layer is formed between the back surface of the plate glass and the surface of the mirror plate, and the periphery of the air layer is sealed. 2. The double-layer mirror according to claim 1, wherein a heating element is arranged on at least a part of the back surface of the sheet glass.