JP2000160967A - Dew condensation preventing device for glass door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dew condensation on the inner surface of a glass door provided at an opening part such as a window or an entrance in the exterior wall of a building, so as to dispense with troublesome dew drop wiping work, and make the bright outdoors visible through a glass door from the indoor side while making the interior of a room invisible from the outdoors. SOLUTION: A screen door 17 is erected outside of a glass door provided at an opening part such as a window or an entrance in an exterior wall of a building, so as to cover the whole glass door 13, and a heat insulating air layer is formed between the screen door 17 and the glass door 13. A net 18 of the screen door 17 is plane weave fabric woven at coarse density using monofilament yarn of thermoplastic synthetic fiber as warp and weft. The warp and weft are colored in dark color, and one face on the outdoor side is covered with a light reflecting metal film by sputter vapor deposition after weaving.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dew-prevention device suitable for preventing dew condensation in winter of glass doors used for windows and doorways of buildings.

[0002]

2. Description of the Related Art In winter, the windows on the outer walls of buildings and the inner surfaces of glass doors at entrances and doors get wet due to dew condensation, and sometimes the glass plates of the glass doors become cloudy, and water droplets adhering to the inner surfaces of the glass plates flow down, resulting in a spill. And may collect at the bottom of the frame. In particular, in a highly airtight building such as a reinforced concrete apartment house, a large amount of water generated by dew condensation accumulates in the lower gusset, flows out to the lower frame, and requires a great deal of labor to wipe it off. It is known to attach a sheet or plate of a water-absorbing plastic to the above-mentioned machi etc. in order to prevent the trouble of this wiping, but since this does not prevent condensation itself, it is possible to prevent fogging of the glass plate. In order to remove this fogging, it is necessary to wipe the inner surface of the glass door with a rag or the like, and there is a limit to the above-mentioned water absorption performance.

[0003]

SUMMARY OF THE INVENTION According to the present invention, dew condensation on the inner surface of a glass door is prevented by forming a net also serving as an insect repelling net on openings such as windows and doorways of the outer wall of a building, and the inner surface of a glass plate is fogged. Water does not accumulate in the glass door machichi or frame, and the bright outdoor can be seen through the room from the inside, and the room can not be seen from the outside, so the troublesome wiping of the inner surface of the glass door, which was required conventionally This makes work unnecessary.

[0004]

A dew condensation preventing net for a glass door according to the present invention is a net for covering the entirety of the glass door outside a glass door provided at an opening such as a window or an entrance of an outer wall of a building. A flat fabric woven at a coarse density using a monofilament yarn of a thermoplastic synthetic fiber for the warp and the weft, by forming an air layer between the glass door and the net by stretching The above-mentioned warp and weft yarns are colored dark, and one surface on the outside is covered with a light-reflective metal film formed by sputter deposition after weaving.

In the above-mentioned dew condensation preventing device for a glass door, in the winter season, the net blocks cold air, the air layer between the net and the glass plate functions as a heat insulating layer, and furthermore, the light reflecting metal on the outer surface of the monofilament yarn. Since the film prevents transmission of infrared rays coming out of the room, absorbs infrared rays and stores heat, cooling of the glass plate is alleviated, dew condensation is prevented, and clouding of the glass plate does not occur. And, since the monofilament yarn is colored dark, and only the outside thereof is covered with the light-reflective metal film, when viewing the outside from the room, it can be seen through as much as the case where the net does not exist, On the other hand, when the interior is viewed from outside, the reflected light becomes extremely strong due to the action of the light-reflective metal film, and the interior becomes invisible. In addition, when the glass door is opened in summer or other seasons, the above-mentioned net functions as an insect repelling net. In this case, too, the bright outdoor can be seen from the inside of the room, and on the contrary, the indoor cannot be seen from the outside.

The monofilament yarn used in the present invention is a monofilament yarn of a thermoplastic synthetic fiber, and examples thereof include polyester, nylon, polyethylene, and polypropylene. In particular, in the case of polyester, the light-reflective metal film has excellent peel strength. Polyethylene and polypropylene are preferable in that they are flexible and can be easily processed as a screen door or the like.

The above monofilament yarn is previously colored dark, but its lightness is such that when one surface is covered with a metal film formed by sputtering, the transparency of the filament yarn disappears and the yarn becomes substantially black. 6 or less, especially 3
The following is preferable. When the brightness becomes brighter than 6, a see-through effect cannot be obtained. The means for coloring may be either stock solution coloring at the stage of spinning stock solution or dyeing after spinning, but stock solution coloring is preferred in that the number of steps is small.

Further, it is preferable to add a metal oxide excellent in infrared ray absorption in advance to the above-mentioned filament yarn, whereby the effect of preventing dew condensation is improved. Examples of the metal oxide include titanium oxide, zinc oxide, aluminum oxide, and silicon dioxide. In particular, titanium oxide and zinc oxide are preferable in terms of good infrared absorption. The addition amount is preferably 0.1 to 10% with respect to the resin component. If it is less than 0.1%, infrared absorption is not exhibited, and if it exceeds 10%, the yarn strength is reduced and it is not practical.

The above-mentioned filament yarn is used for warp and weft in the same manner as nets for insect control, and is woven in a plain weave at a coarse density. In this case, the thickness of the filament yarn is 1
00 to 400 μm is preferred. The warp density and the weft density are each preferably 15 to 30 yarns / inch. If the thickness is less than 100 μm or the yarn density is less than 15 yarns / inch, the strength will be insufficient, and the heat insulating property will be insufficient, making it difficult to achieve the purpose of preventing dew condensation. Also,
If the thickness exceeds 400 μm or the yarn density exceeds 30 yarns / inch, the transparency deteriorates.

[0010] Sputter deposition on the net-like woven fabric obtained by the above-mentioned weaving is performed according to a conventional method using a light-reflective metal as a metal for a cathode (target) of a sputtering apparatus. As the metal for the cathode (target), a corrosion-resistant metal such as stainless steel, titanium, nickel, and chrome is preferable. However, it is not limited to corrosion-resistant metals, and even metals having poor corrosion resistance, such as aluminum, silver, and copper, having good light reflectivity can be obtained by sputtering an acrylic resin, urethane resin, melamine resin, or vinyl chloride. It can be used after being covered with a protective film made of a transparent resin such as resin, vinyl acetate resin and polyethylene. In addition,
The preferred thickness of the light reflective metal film is 100 to 100.
0 °.

The net obtained by the above-mentioned sputtering is tailored into a screen door and attached to a frame of an opening of a building so as to close the entire opening. For the purpose of conventional simple insect control, for example, when two glass doors are provided in the opening, one screen door and one opening are provided on one outer rail so as to overlap with one glass door on one side. When four glass doors are provided, two doors are placed on one outside rail so as to overlap the two glass doors in the center, so that half of the opening is closed. In this invention, one or more screen doors are provided so as to cover all the glass doors. And in this invention, the openable and closable screen type is not always necessary, and when the opening is a small window through which no person can enter or leave, it is simply fitted and fixed, and only the glass door can be freely opened and closed by a sliding door type or an inside door type. can do.

As described above, in the conventional insect screen, half of the glass doors are moved along one rail in order to be able to open and close freely. In the present invention, however, the net is overlaid on all the glass doors. As a necessity, it is convenient to use two or more screen doors and two rails to make a sliding type. In this case, a door pocket is unnecessary. Further, it is also possible to use a single screen door rail and provide a door pocket at one or both ends thereof to perform single or double pull. In addition, by extending the net on the machichi of some glass doors, the number of dedicated screen doors can be reduced by that amount, one rail for screen doors can be used, and the door pocket can be eliminated.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 In FIG. 1, reference numeral 10 denotes a door frame provided at an opening of a building.
The upper frame 10a, the lower frame 10b, and the left and right vertical frames 10c are formed in a square shape, and two upper and lower glass door upper rails 11 are provided on the indoor side (front side in the figure) of the upper frame 10a.
The front and rear two glass door lower rails 12 are laid in parallel on the indoor side of the vehicle, the left glass door 13 on the upper rail 11 and the lower rail 12 on the outdoor side (paper back side in the figure), and the upper side of the indoor side. The right glass door 13 is supported by the rail 11 and the lower rail 12, respectively. In addition, 13a is a gusset of the glass door 13, 13b is a crosspiece, and 14 is a glass plate.

Two front and rear screen door upper rails 15 are provided on the outside of the upper frame 10a, and two front and rear screen door lower rails (not shown) are provided on the outside of the lower frame 10b. The left and right screen doors 17 are laid in parallel on the rear rail (paper back side) of the two front and rear rails, and the right side glass door 17 is positioned on the front (front side) upper rail 15 and lower rail. Are supported respectively. Reference numeral 17a denotes a net of the screen door 17, and reference numeral 18 denotes a dew condensation preventing net formed by sputtering.

The net 18 is manufactured as follows. A polyethylene terephthalate chip is melted, and 0.1 to 10 parts by weight of titanium oxide and 1 to 10 parts by weight of a black pigment are added to 100 parts by weight, mixed well, extruded linearly, stretched, and heat-set. 100 ~ 4 in diameter
A black monofilament yarn having a thickness of 00 μm was produced, and the black monofilament yarn was used as a warp and a weft. A net-like plain woven fabric having a warp density and a weft density of 15 to 30 / inch was woven. Is subjected to a sputtering process to form a light-reflective metal film made of a corrosion-resistant metal such as stainless steel in a thickness of 100 to 1000 °.

In FIG. 2, 18 is a net obtained, 18a and 18b are a warp and a weft, respectively, made of polyester monofilament yarn.
c is a light-reflective metal film deposited by sputtering. The above-mentioned sputtering process is performed according to a conventional method. That is, after drying the plain fabric,
The roll-shaped roll and a winding shaft for winding the fabric drawn laterally from the roll are vertically set in a sealable casing, and a bar-shaped anode and a corrosion resistance for sputtering are provided in front of the roll-shaped roll. Cylindrical targets (cathodes) made of light-reflective metal are provided vertically. Then
After decompressing the inside of the casing, an argon gas is introduced to make the inside of the casing a low-pressure argon gas atmosphere, a DC voltage of 500 V or more is applied between the anode and the cathode, and the fabric on the delivery shaft is exposed to the surface. Is sent out at a constant speed so that it faces the anode, and is wound on a winding shaft.In the meantime, the ions dissociated from the argon gas are accelerated and collide with the cathode target, and the metal on the cathode surface is beaten out, and the metal is discharged. It is scattered and adheres to one side of the fabric, while the other side exposes the black surface of the monofilament yarn.

The dew-preventing net 18 having the above-mentioned light-reflective metal film 18c is stretched over the gusset 17a of the screen door 17, similarly to the conventional insect-proof net. The screen door 17 is set up outside the glass door 13. in this case,
As shown in FIG. 2, the light-reflective metal film 13 is directed outdoors to the glass plate 14, and the glass plate 14 and the net 18
Since the air layer 20 for windproof heat insulation is formed in between, the dew condensation does not occur on the inner surface of the glass plate 14 even in winter. In addition, a bright outdoor can be seen from the room through the net 18, whereas the room cannot be seen from the bright outdoor. Then, in the summer season or the like, by opening the glass door 13, the net 18 for preventing dew condensation on the screen door 17 functions as an insect-preventing net.

Embodiment 2 The same net-shaped fabric as in Embodiment 1 is used, except that the metal for the cathode (target) in Embodiment 1 is changed from a corrosion-resistant metal such as stainless steel to a metal having low corrosion resistance such as aluminum. In the same manner as in Embodiment 1, a sputtering process is performed, and then, the above-mentioned sputtered fabric is subjected to a resin process. Is formed, and this is tailored to the screen door 17 as in the first embodiment.

Embodiment 3 As shown in FIG. 3, four glass doors 1 are placed in a frame 10 of an opening.
3 is erected in a two-row pull-down configuration so as to be openable and closable, and four screen doors 17 similar to the first embodiment are erected on the outside of the door in a two-row pull-up configuration. In addition, 11 is an upper rail for glass doors, and 15 is an upper rail for screen doors.

Embodiment 4 As shown in FIG. 4, two glass doors 1 are placed in a frame 10 of an opening.
3 is erected in a two-row pull-down manner so as to be openable and closable, and a large mesh frame 17A large enough to cover the two glass doors 13 is fixed to the outside portion of the frame 10 in a fitted state. The large net frame 17A is obtained by extending the net 18 of the first embodiment in a rectangular frame that can be fitted into the opening frame 10. Reference numeral 11 denotes a glass door upper rail. The glass door 13 can be a single-door or double-door.

Embodiment 5 As shown in FIG. 5, two glass doors 1 are placed in a frame 10 of an opening.
3 is erected openably and closably in a two-row pulling configuration. However, on the right glass door 13, the net 18 of the first embodiment is stretched over the gusset 13d, and an air layer 20 is formed between the net 18 and the glass plate 14. And frame 10
A single mesh door 17 composed of the same net 18 and camber 17a as in the first embodiment is erected on a door outside portion in the form of a sliding door so as to be openable and closable. In addition, 12 is a lower rail for glass doors, and 16 is a lower rail for screen doors. In this case, the state shown in the figure functions as dew condensation prevention. When only the left glass door 13 is opened from this state, the left screen door 17 functions as an insect screen and both the left glass door 13 and the screen door 17 are used. When you open, people can enter and exit. The same applies when the right glass door 13 with a net is opened.

Embodiment 6 As shown in FIG. 6, two glass doors 1 are placed in a frame 10 of an opening.
3 is erected openably and closably in two rows, and one screen door 17 similar to that of the first embodiment is erected on the outside of the door in the form of a sliding door, and is biased to the left (or right) on the outside of the door. Thus, one screen door 17 is erected in a fixed state. Note that 11
Is an upper rail for glass doors, and 15 is an upper rail for screen doors. In the sixth embodiment, the two screen doors 17 can be opened and closed with one rail each for the upper and lower sides.

Embodiment 7 As shown in FIG. 7, two glass doors 1 are placed in a frame 10 of an opening.
3 is erected openably and closably in a two-row sliding manner, and two screen doors 17 similar to the first embodiment are erected on the outside thereof in a single-row single sliding door form. That is, the upper door 15 and the lower rail 16 for the screen door are laid one by one, and the rails 15 and 16 extend along the outer wall of the building to one of the right and left sides by a length corresponding to the width of the screen door 17. Is done. Reference numerals 15a and 16a denote extensions thereof, and reference numeral 10d denotes a door-sack-shaped cover. In the seventh embodiment, two screen doors 1
7 can be opened and closed by one upper and lower rail. In addition, the extension parts 15a, 1
6a may be provided on both the left and right sides to form a double sliding door.

[0024]

EXAMPLES Example 1 Polyethylene terephthalate chips were melted, and
1 part by weight of titanium oxide powder and 6 parts by weight of a black pigment were added to 00 parts, mixed, extruded linearly at 240 ° C., and stretched.
Furthermore, it was heat-set in a heat treatment tank at 190 ° C. to obtain a black filament having a thickness of 200 μm. The black filament (monofilament yarn) is used for the warp yarns 18a and the weft yarns 18b, and the warp density and the weft density are each woven into a plain woven fabric having a density of 18 yarns / inch. After being blown off with a jet, the film was dried with hot air at 120 ° C. and wound up using a tenter drier.
Next, one side of the woven fabric is subjected to a sputtering process,
The light-reflective metal film 18c made of stainless steel has a thickness of 300 mm.
To form a net 18 for preventing dew condensation.

Using the above-mentioned net 18 (see FIGS. 2 and 3), two door nets 17 for the veranda are manufactured, and two of the four glass doors 13 at the veranda door are covered with the net 17 on the left side. When the two right-hand sheets were left as they were and left for 7 hours under the conditions of an indoor temperature of 15 to 20 ° C. and an outdoor temperature of 5 to 7 ° C., the two left-hand sheets covered with the screen door 17 did not have any condensation. On the other hand, dew condensation occurred on the two right-hand sheets lacking the screen door 17 and the outside was not visible at all from the room, and water was collected at the lower part of the bag.

The relationship between the wavelength of light and the transmittance was compared between the net 10 of the above embodiment and a net having no reflective metal film 13 (Comparative Example). The results are shown in the table below.

Table Wavelength (nm) 400 600 800 1000 1200 1400 1600 1800 2000 2200 Example (%) 49 48 54 51 52 52 51 49 49 50 Comparative example (%) 47 46 69 70 71 71 72 65 64 64

As shown in the above table, the light transmittance of the comparative example is significantly increased in the infrared region having a wavelength of 800 nm or more as compared with the visible light region having a wavelength of 600 nm or less, whereas the light reflective coating of stainless steel is used. In Examples having the above, the light transmittance in the infrared region was substantially equal to that in the visible light region, and was particularly excellent in the infrared absorptivity, that is, the heat storage property, as compared with the Comparative Example, and it was judged that this was effective in preventing dew condensation.

[0028]

As described above, according to the present invention, dew condensation on the inner surface of the glass door can be prevented in the winter season, so that troublesome wiping of dew condensation is not required, and the net also serves as an insect repellent. Can be used throughout. Moreover, the bright outdoors can be seen through the room beautifully, while the indoors cannot be seen from the outside. In particular, claim 2
The invention described in (1) improves the dew condensation preventing function. According to the third aspect of the present invention, although the entire opening is covered with the screen door, it can be opened and closed as needed, and requires no space when opened. According to the fourth aspect of the present invention, it is possible to open and close the screen door that covers the entire opening by simply adding one rail for the screen door.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a cross-sectional view of a main part of FIG.

FIG. 3 is a cross-sectional view of a third embodiment.

FIG. 4 is a cross-sectional view of a fourth embodiment.

FIG. 5 is a transverse sectional view of a fifth embodiment.

FIG. 6 is a transverse sectional view of a sixth embodiment.

FIG. 7 is a cross-sectional view of a seventh embodiment.

[Explanation of symbols]

10: door frame of building opening, 11: upper rail for glass door,
12: lower rail for glass door, 13: glass door, 14: glass plate, 15: upper rail for screen door, 16: lower rail for screen door, 17: screen door, 17A: screen frame, 18: dew condensation prevention net, 18a: Warp, 18b: weft, 18c: light reflective metal film, 20: air layer

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[Procedure amendment]

[Submission date] August 26, 1999 (1999.8.2
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

According to the present invention, there is provided an apparatus for preventing dew condensation on a glass door which covers the entirety of the glass door outside a glass door provided at an opening such as a window or an entrance of an outer wall of a building. A flat fabric woven at a coarse density using a monofilament yarn of a thermoplastic synthetic fiber for the warp and the weft, by forming an air layer between the glass door and the net by stretching The above monofilament yarn is metal
Oxide-containing polyethylene terephthalate
In addition, the warp and the weft are colored dark, and one surface on the outside is covered with a light-reflective metal film formed by sputter deposition after weaving.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

The monofilament yarn used in the present invention is a monofilament yarn of a thermoplastic synthetic fiber, and examples thereof include polyester, nylon, polyethylene, and polypropylene. In particular, in the case of polyester, the light-reflective metal film has excellent peel strength. Preferred in this regard, in the present invention
Polyethylene terephthalate is selected .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008] In addition, a metal oxide excellent in infrared absorption is added to the filament yarn in advance, thereby improving the dew condensation preventing effect. Examples of the metal oxide include titanium oxide, zinc oxide, aluminum oxide, and silicon dioxide. In particular, titanium oxide and zinc oxide are preferable in terms of good infrared absorption. The addition amount is preferably 0.1 to 10% with respect to the resin component, and 0.1 to 10%.
If it is less than 1%, the infrared absorbing property is not exhibited, and if it exceeds 10%, the yarn strength is reduced and it is not practical.

Claims (4)

[Claims] 1. A net covering the entire glass door is provided outside a glass door provided at an opening such as a window or an entrance of an outer wall of a building to form an air layer between the glass door and the net. This net is a plain woven fabric obtained by woven at a coarse density using a monofilament thermoplastic synthetic fiber as a warp and a weft, and the warp and the weft are colored dark, and one side of the outside of the door is formed. Is coated with a light-reflective metal film formed by sputter deposition after weaving. 2. The apparatus according to claim 1, wherein the monofilament yarn is made of polyethylene terephthalate containing a metal oxide, and the light-reflective metal film is made of stainless steel. 3. The net is formed of a plurality of sliding doors in the form of sliding doors, and an opening is opened and closed by opening and closing the screens, and when closed, the entire glass door is covered with the plurality of screens. Or the dew condensation preventing device for glass doors according to 2. 4. The apparatus according to claim 3, wherein a plurality of screen doors are arranged in a sliding door form.