JP5628944B2 - Window equipment - Google Patents

Description

  The present invention relates to a window device, and more particularly to a window device suitable as a window in a place such as a bathroom or a toilet where privacy is desired and lighting is desired.

  Generally, a template glass is used as a window glass in a bathroom. Also known is a double-layer glass made by stacking two template glass sheets.

  In the window device of Patent Document 1, a striped opaque portion (or translucent portion) is formed on each plate glass of a multilayer glass by sandblasting, silk printing or the like. The ratio of the area of the opaque part to the total area of each plate glass is about 50%. The opaque portions of the two plate glasses may be arranged at the same height as each other, or may be arranged at different heights.

JP 2005-105653 A

By making the window glass of the bathroom into a template glass, you can blur the indoor image seen from the outside. However, even if it is blurred, it can be recognized from the rough shape, hue, contrast, movement, etc. (see Comparative Example 1 below). In particular, it is easier to see from the outside at night to illuminate the interior of the bathroom. The situation does not change much even if two glass sheets are stacked to form a multi-layer glass.
Therefore, it is conceivable to stick an adhesive translucent sheet called a so-called blindfold sheet on the entire surface of the window glass. However, when the blindfold sheet is exposed to moisture or wind and rain, the corner portion is particularly easily peeled off, and the peeled portion is easily soiled. Therefore, maintenance such as reattaching is often required. Further, in order to ensure that an image of a person in the room cannot be seen from the outside with a blindfold sheet, the light transmittance of the blindfold sheet needs to be considerably low (for example, less than 0.1%). The room is dark.
In Patent Document 1, when the heights of the opaque portions of the two plate glasses are aligned with each other, the line of sight from the oblique 45 ° direction is blocked, but the line of sight from the horizontal direction cannot be blocked. When the heights of the opaque portions of the two plate glasses are shifted from each other, the line of sight from the horizontal direction is blocked, but the line of sight from 45 degrees cannot be blocked.

  In view of such circumstances, the present invention, for example, in a window device provided in a room such as a bathroom where privacy should be ensured, makes it impossible to distinguish a person's image from the outside at night, or makes it difficult to distinguish in the daytime. The purpose is to make it possible to get enough light from outside.

In order to solve the above problems, a window device according to the present invention includes a first plate glass and a second plate glass arranged so as to face each other in parallel, and the first plate glass faces the second plate glass in the first plate glass. A translucent film is coated on almost the entire surface, and the second glass plate is a light scattering glass that scatters light (not claimed) .
According to this characteristic configuration, even if the translucency of the translucent film is made higher than when light is shielded only by a blindfold sheet or the like, it is possible to make it impossible to distinguish a person in a room illuminated at night sufficiently or difficult to distinguish from outside. Can do. Therefore, the daylighting degree in the room can be increased.

The visible light transmittance of the entire window device is preferably about 1% to 20%, more preferably about 5% to 10%. As a result, it is possible to make it impossible to discriminate or make it difficult to discriminate the human figure in the night room, and it is possible to secure a sufficient degree of daylighting in the room.
The area ratio of the translucent film occupying the first surface is preferably 90% or more, more preferably 95% or more. As a result, it is possible to make it difficult or impossible to discriminate the person in the room at night. The translucent film may be provided on the entire first surface.

The window device according to the present invention includes a first plate glass and a second plate glass arranged so as to face each other in parallel, and a semitransparent film is provided on almost the entire first surface of the first plate glass facing the second plate glass. The second glass plate is a light scattering glass that scatters light, and the first surface is uniformly distributed with a non-coating portion that is not coated with the translucent film . It is characterized by As a result, it is possible to secure a sufficient degree of daylighting indoors.
It is preferable that the said non-coating part comprises the line pattern which consists of a linear part 1 mm or less in width. As a result, it is possible to sufficiently determine the degree of daylighting in the room during the day while making it impossible to distinguish or difficult to distinguish the human figure in the room at night.

  It is preferable that a gas layer is formed between the first plate glass and the second plate glass, and that the first surface and thus the translucent film face the gas layer. Thereby, the translucent film can be protected, and deterioration of the translucent film can be prevented. In addition, the semitransparent film can be prevented from being stained, and the window device can be easily cleaned. Furthermore, it can be insulated by a gas layer.

  The first plate glass and the second plate glass may be bonded together via a transparent adhesive layer. Thereby, the translucent film can be protected, and deterioration of the translucent film can be prevented. In addition, the semitransparent film can be prevented from being stained, and the window device can be easily cleaned. Furthermore, the window glass can be made difficult to break. When broken, glass fragments can be prevented from scattering. Therefore, the crime prevention property and safety of the window device can be improved.

  It is preferable that the second plate glass is formed of a mold plate glass having a concavo-convex pattern on one side and a flat surface on the opposite side, and the one side faces the first plate glass. Thereby, the light incident on the second glass can be reliably scattered. Moreover, it becomes difficult for dirt to adhere to the second glass, and cleaning becomes easier.

  According to the window device of the present invention, it is possible to make it impossible to distinguish or make it difficult to distinguish a human figure viewed from the outside at night, and it is possible to sufficiently secure daylighting in the room.

FIG. 1 shows a first embodiment of the present invention and is a front view of a window device viewed from the indoor side. FIG. 2 is a cross-sectional view of the window device, taken along line II-II in FIG. 1, omitting the window frame and the outer wall. FIG. 3 shows a second embodiment of the present invention and is a sectional view of a window device. FIG. 4A is a photograph of the window device photographed from outside when the subject in the bathroom is at a position 20 cm away from the window device at night in Example 1. FIG. 4B is a photograph of the window device photographed from outside when the subject in the bathroom is at a position 20 cm away from the window device at night in Comparative Example 1. FIG. 5 (a) is a photograph of the window device taken from outside when the subject in the bathroom was at a position 50 cm away from the window device at night in Example 1. FIG.5 (b) is the photograph which image | photographed the said window apparatus from the outdoors, when the test subject in a bathroom is in the position 50 cm away from the window apparatus at night in the comparative example 1. FIG. FIG. 6A is a photograph of the window device photographed from the outside when the subject in the bathroom was at a position 1 m away from the window device at night in Example 1. FIG.6 (b) is the photograph which image | photographed the said window apparatus from the outdoors in the comparative example 1, when the test subject in a bathroom is in the position 1 m away from the window apparatus at night. FIG. 7A is a photograph of the window device taken from outside when the subject in the bathroom was at a position 2 m away from the window device at night in Example 1. FIG.7 (b) is the photograph which image | photographed the said window apparatus from the outdoors in the comparative example 1, when the test subject in a bathroom is in the position 1 m away from the window apparatus at night. FIG. 8 is a photograph taken in the bathroom during the daytime in Example 1.

<First Embodiment>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the window apparatus 1 is provided in the outer wall 2 of the bathroom of a building. As shown in FIG. 2, the window glass of the window device 1 is composed of a multi-layer glass including a first plate glass 10 and a second plate glass 20.

  As shown in FIG. 2, the 1st glass plate 10 and the 2nd glass plate 20 are arrange | positioned in parallel so that it may mutually oppose. The 1st glass plate 10 is arrange | positioned at the bathroom side (right in FIG. 2), and the 2nd glass plate 20 is arrange | positioned at the outdoor side (left in FIG. 2). The first plate glass 10 and the second plate glass 20 are arranged slightly apart from each other, and a gas layer 30 is formed between the plate glasses 10 and 20. The outer periphery of the gas layer 30 is sealed by a seal member 31. Air is sealed in the gas layer 30. The thickness of the gas layer 30 is preferably about 5 mm to 20 mm, more preferably about 10 mm to 15 mm.

  The first glass plate 10 is made of float glass. The thickness of the first plate glass 10 is preferably about 1 mm to 5 mm, more preferably about 3 mm. In FIG. 2, the thickness of the first plate glass 10 is exaggerated with respect to the thickness of the gas layer 30.

  The glass material itself of the first glass plate 10 is colorless and transparent, and both surfaces 11 and 15 thereof are flat. The translucent film 12 is coated on the first surface 11 (the surface on the gas layer 30 side) of the first glass plate 10 facing the second glass plate 20. The shielding rate with respect to visible light of the translucent film 12 is greater than the required shielding rate of the translucent sheet when the bathroom is blindfolded only with a translucent sheet such as a blindfold sheet, and is not combined with the second glass sheet 20. This is larger than the required shielding rate when the bathroom is blindfolded only by the translucent film 12. Specifically, the visible light transmittance of the translucent film 12 is preferably about 0.1% to 10%, more preferably about 0.5% to 5%. The thickness of the translucent film 12 is preferably about 3 μm to 30 μm, and more preferably about 10 μm to 15 μm. In FIG. 2, the thickness of the translucent film 12 is exaggerated with respect to the thickness of the plate glasses 10 and 20 and the thickness of the gas layer 30. The surface of the translucent film 12 is rougher than the surface of the glass material itself of the first plate glass 10. The surface roughness Ra of the translucent film 12 is preferably about 0.2 μmRa to 3 μmRa, and more preferably about 0.5 μmRa to 1 μmRa.

  As shown in FIG. 1, the translucent film 12 is composed of a plurality of square film portions 12a. By arranging these film portions 12a vertically and horizontally, the semi-transparent film 12 has a checkerboard pattern or a checkerboard pattern as a whole. The length of one side of each film portion 12a is preferably about 1 cm to 5 cm, more preferably about 2 cm to 4 cm, and still more preferably about 3 cm. The interval between the film portions 12a adjacent to each other in the vertical and horizontal directions is sufficiently narrow, and is very small compared to the vertical and horizontal dimensions of each film portion 12a. The portion between the film portions 12 a is not coated with the film 12 and is a transparent non-coated portion 13. The non-coating part 13 comprises the line pattern which consists of many thin linear parts 13a and 13b. Here, the non-coating part 13 is a grid | lattice form. That is, the non-coating portion 13 includes a plurality of vertical linear portions 13a extending vertically and a plurality of horizontal linear portions 13b extending horizontally, and these linear portions 13a, 13b intersect each other. The width of the non-coating portion 13 is preferably about 0.1 mm to 1 mm, more preferably about 0.3 mm to 0.7 mm, and still more preferably about 0.5 mm.

  The translucent film 12 is formed by silk-printing ink. Examples of the ink include UV paint. The UV paint is obtained by mixing a pigment or the like with a UV reactive resin. The UV-reactive resin has a property of causing a curing reaction by UV (ultraviolet rays), and is preferably colorless and transparent. For example, a white pigment is used as the pigment. However, the pigment is not limited to this, and may be a gray pigment or a colored pigment such as red or yellow. The translucent film 12 is, for example, white translucent. However, the translucent film 12 is not limited to this, and may be gray translucent or red translucent translucent. The color of one film portion 12a and the other film portion 12a may be different from each other. After the ink is applied to the plate glass 10 by silk printing, the ink is cured by irradiating UV. Thereby, the semitransparent film 12 can be formed.

  The second plate glass 20 is a light scattering glass that scatters light. Here, a template glass (including mist glass) is used as the second glass plate 20. On one surface 22 (second surface) of the second glass sheet 20, a concavo-convex pattern 23 composed of convex portions 23a and concave portions 23b is formed over the entire surface. This surface 22 faces the gas layer 30 and faces the first glass sheet 10. The surface 25 (surface facing the outdoors) on the opposite side of the second glass plate 20 is flat. The thickness of the second glass plate 20 is preferably about 1 mm to 7 mm, and more preferably about 4 mm. In FIG. 2, the thickness of the second glass plate 20 is exaggerated with respect to the thickness of the gas layer 30. The glass material of the 2nd plate glass 2 is colorless and transparent.

  The uneven pattern 23 of the second glass plate 20 may be mist, pear or hazy. The height of the convex portion 23a (the depth of the concave portion 23b) of the concave / convex pattern 23 is preferably about 0.1 mm to 1 mm. The arrangement interval (pitch) between the convex portions 23a is preferably about 0.1 mm to several mm.

  The visible light transmittance of the entire window device 1 is preferably about 1% to 20%, and more preferably about 5% to 10%.

The operation of the window device 1 having the above configuration will be described.
When the light in the illuminated bathroom is incident on the first glass plate 10 at night, a part of the incident light is reflected and the other part is absorbed by the glass 10 or the translucent film 12. Further, the light transmitted through the semitransparent film 12 is slightly scattered on the rough surface of the semitransparent film 12. Furthermore, light passing through the narrow non-coating portion 13 can be diffracted. Thereafter, the light incident on the second glass plate 20 through the gas layer 30 is scattered by the uneven pattern 23. By combining the translucent film 12 and the light scattering glass 20 in this way, a part of the light from the bathroom is reflected and absorbed and scattered by the window device 1 and then goes out. Accordingly, it is possible to make it impossible or difficult to distinguish the person in the bathroom from the outside.

Light such as outdoor sunlight enters the window apparatus 1 during the daytime. This light is scattered by the uneven pattern 23 of the second glass sheet 20. Further, a part of the scattered light is absorbed by the translucent film 12. The remaining light enters the bathroom. The translucent film 12 is more than the case where the bathroom is blinded only by the translucent film 12 (without the second glass plate 20), or the case where the bathroom is blinded at night only by a translucent sheet such as a blindfold sheet. Since the transmittance can be increased, the amount of light incident on the bathroom in the daytime can be increased. In addition, the light incident on the non-coating portion 13 enters the bathroom with almost no absorption at the non-coating portion 13. As a result, the bathroom can be sufficiently brightened.
As described above, according to the window device 1, it is possible to sufficiently blur the human figure in the bathroom at night, and it is possible to sufficiently secure daylighting during the day. Depending on the direction of the line of sight from the outside, the room may or may not be visible.

Since the translucent film 12 faces the gas layer 30 inside the window device 1, it does not easily cause peeling or deterioration. Therefore, there is almost no need to perform a re-coating operation corresponding to the replacement on the blindfold sheet. Moreover, since both the indoor side surface 15 and the outdoor side surface 25 of the window apparatus 1 are flat, it is difficult for dirt to adhere and it is easy to clean.
Furthermore, the design of the bathroom can be enhanced by the color of the translucent film 12 and the line pattern of the non-coating portion 13.

Next, another embodiment of the present invention will be described. In the following embodiments, the same reference numerals are attached to the drawings for the same configurations as those already described, and the description thereof is omitted.
Second Embodiment
In the window device 1A of the second embodiment, the first plate glass 10 and the second plate glass 20 are stacked to constitute a laminated glass. A transparent adhesive layer 40 is interposed between the first glass sheet 10 and the second glass sheet 20. The first glass sheet 10 and the second glass sheet 20 are bonded and integrated through the adhesive layer 40. The first surface 11 of the first glass sheet 10 and thus the translucent film 12 faces the adhesive layer 40. The second surface 22 of the second glass sheet 20 and thus the uneven pattern 23 faces the adhesive layer 40.

  Even in the window device 1 </ b> A, light from the bathroom can be partially absorbed by the translucent film 12 at night and can be scattered by the uneven pattern 23. As a result, it is possible to make it impossible or difficult to distinguish the person in the bathroom from the outside. In the daytime, light such as sunlight can be sufficiently taken into the bathroom from the window device 1A. Similar to the first embodiment, the semi-transparent film 12 is less likely to be peeled and deteriorated, and the flat outer surfaces 15 and 25 are less likely to get dirty and easy to clean. In addition, in 2nd Embodiment, even if the plate glasses 10 and 20 are cracked, the integrity of the plate glasses 10 and 20 can be maintained by the adhesive layer 40, and fragments can be prevented from scattering. Thereby, the crime prevention property and safety | security of the window apparatus 1 can be improved.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention.
For example, the method of forming the translucent film 12 is not limited to silk printing, and various film forming methods such as painting, etching, sand blasting, vapor deposition, and film pasting can be employed.
Various patterns can be employed as the line pattern of the non-coating portion 13. For example, the non-coating portion 13 may have a triangular lattice shape. The non-coating part 13 may be dot-like. The pattern of the non-coating portion 13 is not limited to a geometric pattern, and may be a creative pattern representing various motifs.
The entire area of the first surface 11 may be covered with the semitransparent film 12. The non-coating part 13 may not be provided.
The 1st glass plate 10 may be arrange | positioned at the outdoor side, and the 2nd glass plate 20 may be arrange | positioned indoors.
As the second plate glass 20, a frosted glass (semi-transparent glass) such as ground glass may be used instead of the template glass (including mist glass). Furthermore, the second glass plate 20 may be any glass that scatters light, and is not limited to glass having a concavo-convex pattern on the surface, such as a template glass or a ground glass, but is a foamed glass in which many bubbles are formed. May be.
The window device 1 of the present invention can be applied particularly to a window in a place where privacy should be ensured, and is not limited to a bathroom window, but can also be applied to a window of a toilet, a dressing room, or the like.

Examples will be described. Of course, the present invention is not limited to the following examples.
In Example 1, a window device 1 similar to that of the first embodiment (FIGS. 1 and 2) was produced.
Specifically, the translucent film 12 was formed by silk-printing ink on the glass 10.
As the ink, white UV paint manufactured by Okuno Pharmaceutical Co., Ltd. was used.
The thickness of the translucent film 12 was about 10 μm.
The size of each membrane portion 12a was 30 mm square.
The width of the non-coating portion 13 was 0.5 mm.
The area occupancy of the translucent film 12 on the first surface 11 was about 96.6%, and the area occupancy of the non-coating portion 13 was about 3.4%.
The transmittance for visible light of the first glass sheet 10 (with the non-coating portion 13) coated with the semitransparent film 12 was 9.81%. In addition, the said transmittance | permeability was made into the average value of visible region (380 nm-810 nm) among measurement spectra (hereinafter, the same).
The transmittance of the window device 1 as a whole was 7.36%.
As the 2nd glass plate 20, the 2nd surface 22 used the glass which became mist ground (fine unevenness | corrugation). The transmittance of the second glass plate 20 with respect to visible light was 23.57%.
The thickness of the glass 10 and 20 was 3 mm. The thickness of the gas layer 30 was 12 mm.
Two bathroom illuminators were arranged in the upper part of the bathroom side wall orthogonal to the window device 1 (see FIG. 8). The distances from the center of the window device of these illuminators were about 1 m and about 1.8 m, respectively.
The illuminator was a Panasonic (National) EFG15ED Palook Ball Spiral G type, with a power consumption of 60 watts.

As shown in FIGS. 4 to 7, at night (around 8:00 pm), the subject stood in the bathroom while illuminating the bathroom with the illuminator, and the window device of the bathroom was observed from outside.
As shown in FIG. 4 (a), when the subject in the bathroom was 20cm away from the window device 1, a slight shadow was confirmed from the outside, but the skin color was not recognized and was within the allowable range. It was.
As shown to Fig.5 (a), when the test subject in the bathroom was in the position 50 cm away from the window apparatus 1, it was a grade which can recognize what looks like a shadow from the outside, and there was no problem at all.
As shown in FIG. 6A, when the subject was at a position 1 m away from the window device 1, the image of the subject could not be discriminated at all from the outside.
As shown in FIG. 7A, when the subject was at a position 2 m away from the window device 1, the image of the subject could not be discriminated at all from the outside.
As shown in FIG. 8, it was possible to get enough light from outside during the day. In addition, the photography time of the photograph of FIG. 8 was 7:00 am, and the weather was fine. The direction of this bathroom window was north.

[Comparative Example 1]
As Comparative Example 1, the translucent film 12 in the window device 1 of Example 1 was omitted, and the appearance from the outside was confirmed with only the double-glazed glass.
As shown in FIG. 4B, when the subject in the bathroom was at a position 20 cm away from the window device 1, the subject could be distinguished quite clearly from the outside.
As shown in FIG. 5B, the subject could be identified from the outside even when the subject in the bathroom was at a position 50 cm away from the window device 1.
As shown in FIG. 6 (b), even when the subject in the bathroom was at a position 1 m away from the window device 1, the subject could be recognized from the outside.
As shown in FIG. 7B, the subject could be recognized from the outside even when the subject in the bathroom was at a position 2 m away from the window device 1.

[Comparative Example 2]
In Comparative Example 2, instead of coating the first surface 11 of the window device 1 of Example 1 with the semitransparent film 12, a blindfold sheet was put on. The transmittance of this window device using BBP-4651BE manufactured by Meiwa Gravure Co., Ltd. as a blindfold sheet was 0.07%. Therefore, the transmittance of the window device of Comparative Example 2 was 1/105 times that of the window device 1 of Example 1. Although the window device of Comparative Example 2 was blindfolded at night, daylighting was poor.

  The present invention can be applied as a bathroom or toilet window of a house.

DESCRIPTION OF SYMBOLS 1 Window apparatus 10 1st glass plate 11 1st surface 12 Translucent film | membrane 12a Film | membrane part 13 Non-coating part 13a Vertical thin wire | line 13b Horizontal thin wire | line 15 Indoor side surface 20 2nd plate glass 22 2nd surface 23 Convex pattern 23a Convex part 23b Concave part 25 Outdoor side 30 Gas layer 31 Sealing member 40 Adhesive layer

Claims (7)

A first plate glass and a second plate glass arranged so as to face each other in parallel with each other, a semi-transparent film is coated on almost the entire first surface of the first plate glass facing the second plate glass, and the second plate glass light scattering glass der to scatter light is, wherein the first surface, wherein the semitransparent film window and wherein that you have been uncoated portions uniformly distributed that unskinned.   The window device according to claim 1, wherein the translucent film occupies 90% or more of the first surface. The uncoated portion is, the window apparatus according to claim 1 or 2, characterized in that it constitutes a linear pattern consisting of a linear portion of less than the width 1 mm. Gas layer is formed between the second glass sheet and said first glass sheet, claim 1-3, wherein the first surface and hence the semi-transparent film is characterized in that facing the gas layer The window device according to item 1. The window device according to any one of claims 1 to 3 , wherein the first glass plate and the second glass plate are bonded together via a transparent adhesive layer. The second glass sheet is uneven pattern on one side is formed, and the opposite surface is formed by flat figured glass, claim 1-5, wherein the one side and wherein the facing said first glass sheet The window device according to any one of the above. The window device according to any one of claims 1 to 6 , wherein the entire window device has a visible light transmittance of 1% to 20%.