JP2015165085A - Heat insulating screen and roll screen using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating screen exhibiting higher heat insulating performance than conventional technique.SOLUTION: A heat insulating screen 1 is formed by laminating a fabric layer 11 made of a fabric or a nonwoven fabric, a moisture impermeable resin layer 12 made of resin, a metal layer 13 containing metal and reflecting an infrared ray, and an infrared transmittance layer 14 made of resin and transmitting the infrared ray in the order. Further, a heat insulating screen 1A is formed by laminating a moisture impermeable resin layer 12A made of resin and applied with a design at least on a surface thereof, the metal layer 13 containing metal and reflecting the infrared ray, and the infrared transmittance layer 14 made of resin and transmitting the infrared ray in the order.

Description

  The present invention relates to a heat insulating screen and a roll screen using the same.

  Conventionally, a light-reflective heat insulating screen installed in an opening of a building has been proposed (see, for example, Patent Document 1). This heat insulating screen includes a light-reflective metal layer and a light diffusion layer covering the surface of the metal layer, thereby reflecting sunlight heat and preventing an increase in indoor temperature.

JP 2003-266590 A

  However, in the heat insulating screen of Patent Document 1, the light diffusion layer is composed of a nonwoven fabric such as polyethylene fiber having an absorption peak in the infrared wavelength region. Therefore, in the heat insulation screen of patent document 1, since the polyethylene fiber in a light-diffusion layer absorbs infrared rays, the present condition is that the reflective effect of solar heat is hardly acquired.

  This invention is made | formed in view of the above, The objective is to provide the heat insulation screen which has heat insulation higher than before.

  (1) The present invention is made of a resin, and includes a moisture-impermeable resin layer (for example, a resin layer 12A described later) having a design on at least the surface and a metal, and a metal that reflects infrared rays. A heat insulation characterized in that a layer (for example, a metal layer 13 described later) and an infrared transmission layer (for example, an infrared transmission layer 14 described later) made of resin and transmitting infrared rays are laminated in this order. A screen (for example, a heat insulating screen 1A described later) is provided.

  (2) Moreover, this invention is a dough layer (for example, below-mentioned dough layer 11) comprised with the textile fabric or the nonwoven fabric, and the impermeable resin layer (for example, below-mentioned resin layer 12) comprised with resin, A metal layer that includes metal and reflects infrared rays (for example, a metal layer 13 to be described later), and an infrared transmission layer that is made of resin and transmits infrared rays (for example, an infrared transmission layer 14 to be described later), Provided is a heat insulating screen (for example, a heat insulating screen 1 to be described later) that is laminated in order.

  (3) The heat insulating screen of (1) or (2) preferably has a visible light transmittance of 30 to 80%.

  (4) The infrared transmission layer according to any one of (1) to (3) is composed of at least one selected from the group consisting of polypropylene resin, polyethylene resin, olefin resin and polyamide resin, and has an infrared transmittance of 60 to 60. 99% is preferred.

  (5) Moreover, it is a roll screen (for example, below-mentioned roll screens 2, 2A) attached to the window frame (for example, below-mentioned window frame 9) of a building, Comprising: Any heat insulation screen from (1) to (4) And a winding part (for example, cover boxes 20, 20A, which will be described later, a winding shaft 24) which is provided on the upper horizontal frame (for example, an upper horizontal frame 91 which will be described later) and winds up the heat insulating screen, Guide grooves (for example, guide grooves 220A described later) provided in both vertical frames of the window frame (for example, left vertical frame 92 and right vertical frame 93 described later) and slidably inserted at both side ends of the heat insulating screen. , 220B), and a pair of side rails (for example, side rails 21 and 22 described later).

  (6) It is preferable that airtight valves (for example, airtight valves 221A and 221B described later) are provided inside the guide grooves of the pair of side rails.

  ADVANTAGE OF THE INVENTION According to this invention, the heat insulation screen which has heat insulation higher than before can be provided.

It is sectional drawing of the heat insulation screen which concerns on 1st Embodiment of this invention. It is a front view of the internal roll-type roll screen using the heat insulation screen which concerns on the said embodiment. It is a longitudinal cross-sectional view of the internal roll screen using the heat insulating screen according to the embodiment. It is a cross-sectional view of the side rail portion of the internal roll screen using the heat insulating screen according to the embodiment. It is a front view of the externally attached type roll screen using the heat insulation screen which concerns on the said embodiment. It is a longitudinal cross-sectional view of the externally attached type roll screen using the heat insulation screen which concerns on the said embodiment. It is sectional drawing of the heat insulation screen which concerns on 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that, in the description of the second embodiment, the same reference numerals are given to configurations common to the first embodiment, and the description thereof is omitted.

(First embodiment)
<Insulation screen>
FIG. 1 is a cross-sectional view of a heat insulating screen 1 according to the first embodiment.
As shown in FIG. 1, the heat insulating screen 1 according to the present embodiment is configured by a laminate including four layers. More specifically, the heat insulating screen 1 is configured by laminating a fabric layer 11, a resin layer 12, a metal layer 13, and an infrared transmitting layer 14 in this order.
Moreover, the heat insulation screen 1 of this embodiment is used as a roll screen described later with the fabric layer 11 facing the indoor side and the infrared transmission layer 14 facing the outdoor side.

  The fabric layer 11 is a layer disposed on the outermost surface on the indoor side, and is a layer that imparts design properties. The fabric layer 11 is composed of a woven fabric or a nonwoven fabric. Specifically, the fabric layer 11 is preferably composed of a woven or non-woven fabric such as polyester resin, nylon resin, cotton, or hemp. By the fabric layer 11 being made of a woven fabric or a non-woven fabric, an inorganic texture such as a resin is eliminated and a high design property is imparted.

  The film thickness of the fabric layer 11 is preferably 1 mm or less from the relationship between the winding diameter and weight of the heat insulating screen 1. When the film thickness of the fabric layer 11 exceeds 1 mm, the winding diameter of the heat insulating screen 1 increases, so that the size of a cover box 20 (described later) that accommodates the wound heat insulating screen 1 increases, resulting in a feeling of pressure and aesthetics. Damage. The film thickness of the fabric layer 11 is more preferably 600 μm or less.

The resin layer 12 is a moisture-impermeable resin film made of a resin and has a function of holding a metal layer 13 described later. Specifically, the resin layer 12 includes a polyurethane resin, a polyester resin (for example, polyethylene terephthalate), an acrylic resin, a polyamide resin (for example, nylon), a fluororesin, an olefin resin (for example, polypropylene or polyethylene), and a polyvinyl chloride resin. It is preferably composed of at least one selected from the group consisting of By the resin layer 12 being composed of these resins, moisture impermeability is imparted.
Here, the “moisture-impermeable resin film” is not limited to one having a moisture permeability of 0%, and includes a film having a slight moisture permeability as long as the effect of the present embodiment is not hindered. Means that.
The resin layer 12 has a function of protecting a metal layer 13 described later, and specifically has a function of improving corrosion resistance against moisture.

  The film thickness of the resin layer 12 is preferably 200 μm or less from the relationship between the winding diameter and weight of the heat insulating screen 1. If the film thickness of the resin layer 12 exceeds 200 μm, the heat insulating screen 1 becomes hard and difficult to wind because the heat insulating screen 1 becomes rigid and hard. The film thickness of the resin layer 12 is more preferably 50 μm or less.

  The metal layer 13 is a layer that includes metal and reflects infrared rays. Specifically, the metal layer 13 is preferably composed of at least one selected from the group consisting of aluminum, titanium, silver, copper, ITO (indium tin oxide), SUS (stainless steel), and metal oxide. . When the metal layer 13 includes these metals, an infrared reflection function is provided.

  The thickness of the metal layer 13 is preferably 6 to 30 nm from the viewpoints of infrared reflection performance and visible light transmission performance. When the film thickness of the metal layer 13 is less than 6 nm, the infrared reflection performance is deteriorated and the infrared ray is hardly reflected. On the other hand, when the thickness of the metal layer 13 exceeds 30 nm, the transmittance of visible light is deteriorated. If the thickness of the metal layer 13 is in the range of 6 to 30 nm, visible light can be transmitted while reflecting infrared rays.

  The infrared transmission layer 14 is a resin film that is made of resin and transmits infrared rays, and has a function of protecting the metal layer 13 described above. Specifically, the infrared transmission layer 14 is preferably composed of at least one selected from the group consisting of polypropylene resin, polyethylene resin, olefin resin, and polyamide resin, and its infrared transmittance is preferably 60 to 99%. . Since the infrared transmittance of the infrared transmission layer 14 covering the metal layer 13 is within this range, the infrared transmission layer 14 does not impair the infrared reflection function of the metal layer 13, and the solar heat is highly efficient by the metal layer 13. Reflected.

  In addition, from the viewpoint of moldability and the like, the film thickness of the infrared transmission layer 14 is usually 1 to 50 μm. Therefore, the infrared transmission layer 14 is made of the above-described resin, so that the infrared transmission factor is set within a range of 60 to 99%.

Here, the infrared transmittance is measured by a measurement method based on JIS R3106, for example, under the following measurement conditions.
[Infrared transmittance measurement conditions]
Measuring instrument: “FT-IR8900” manufactured by Shimadzu Science Co., Ltd.
Measurement wavelength: 5 to 25 μm

  The heat insulating screen 1 according to this embodiment preferably has a visible light transmittance of 30 to 80%. When the visible light transmittance of the heat insulating screen 1 is within this range, the brightness of sunlight is taken indoors due to the high visible light transmittance.

Here, the visible light transmittance is measured by a measurement method based on JIS R3106, for example, under the following measurement conditions.
[Visible light transmittance measurement conditions]
Measuring instrument: “UV3100PC” manufactured by Shimadzu Science Co., Ltd.
Measurement wavelength: 380 to 780 nm

The heat insulation screen 1 of this embodiment is manufactured with the following manufacturing methods.
First, the fabric layer 11 and the resin layer 12 are bonded together with an adhesive, and the metal layer 13 is laminated by a sputtering method using this as a base material. Further thereon, the infrared transmission layer 14 is bonded with an adhesive. Thereby, the heat insulation screen 1 is obtained.
In addition, a manufacturing method is not limited to the said method. For example, the fabric layer 11 and the resin layer 12 are bonded with an adhesive, and the infrared transmission layer 14 in which the metal layer 13 is laminated by a sputtering method is bonded to the already bonded fabric layer 11 and the resin layer 12 with an adhesive. The heat insulating screen 1 may be obtained.

<Roll screen>
First, an internal roll screen will be described.
FIG. 2 is a front view of an internal roll screen 2 using the heat insulating screen 1 described above. FIG. 3 is a longitudinal sectional view of an internal roll screen 2 using the above-described heat insulating screen 1.
As shown in FIGS. 2 and 3, the roll screen 2 is attached to a window frame 9 which is framed in a rectangular shape and attached to the opening of the inner wall 8 of the building. The roll screen 2 holds the heat insulating screen 1 so that the heat insulating screen 1 can be wound, and covers the opening device 7 (a sliding window is illustrated in FIG. 2) and the glass 70 by pulling the heat insulating screen 1 downward.

  The roll screen 2 includes the above-described heat insulating screen 1 of the present embodiment, a cover box 20, a pair of side rails 21 and 22, and a bottom bar 23.

The cover box 20 is attached to the inner peripheral surface (lower surface) of the upper horizontal frame 91 constituting the window frame 9. The cover box 20 is a box-like member that extends along the upper horizontal frame 91 to the corners at the two upper sides of the window frame 9. That is, the cover box 20 is fitted and attached to the inner periphery of the upper horizontal frame 91.
Moreover, the cover box 20 accommodates the winding shaft 24 which supports the heat insulation screen 1 so that winding is possible inside, and functions as a cover member which accommodates the wound heat insulation screen 1.
In addition, although the cover box 20 was illustrated in a quadrangular shape, it is not limited to this. For example, a circular shape, an R shape, or an L shape may be used.

  The pair of side rails 21 and 22 are respectively attached to the left vertical frame 92 and the right vertical frame 93 that constitute the window frame 9. More specifically, these side rails 21 and 22 extend from both end portions of the cover box 20 to the lower two corners of the window frame 9 along both vertical frames, and the inner peripheries of both vertical frames. Attached to the surface. That is, the side rails 21 and 22 are fitted and attached to the inner circumferences of both vertical frames.

  Moreover, the side rails 21 and 22 respectively have guide grooves into which both end portions of the heat insulating screen 1 are slidably inserted. Since the structures of both guide grooves are the same, only the structure of the guide grooves of the side rail 22 will be described below.

FIG. 4 is a cross-sectional view of the side rail 22 of the internal roll screen 2 using the heat insulating screen 1 described above. In FIG. 4, two variations of the structure of the guide groove of the side rail 22 are illustrated.
In the example shown in FIG. 4A, the guide groove 220A of the side rail 22 is provided in the approximate center of the side rail 22 in the expected direction, and after extending straight to the outside in the finding direction (right side in FIG. 4), gradually It is provided to expand the diameter. An airtight valve 221A made of rubber or the like is attached to the inner side surface of the enlarged diameter portion of the guide groove 220A by a rivet or the like. The side end portion of the heat insulating screen 1 can be slid up and down while being sandwiched by the airtight valve 221A, thereby ensuring airtightness.

  In the example shown in FIG. 4 (B), the guide groove 220B of the side rail 22 is provided in the approximate center of the side rail 22 in the expected direction, and extends straight to the outside in the finding direction (right side in FIG. 4). Each of the indoor side and outdoor side is bent and extended. An airtight valve 221B made of rubber or the like is attached to the inner side surface of the bent portion of the guide groove 220A by a rivet or the like. The side end portion of the heat insulating screen 1 can be slid up and down while being sandwiched by the airtight valve 221B, thereby ensuring airtightness.

  2 and 3, the bottom bar 23 is attached to the lower end edge of the heat insulating screen 1. A user puts his hand on the bottom bar 23 to wind and lower the heat insulating screen 1.

In the roll screen 2 having the above configuration, when the bottom bar 23 is pulled down and fixed, the gap between the window frame 9 and the roll screen 2 disappears, and the inside of the window frame 9 is sealed. That is, as shown in FIG. 3, a sealed space 3 surrounded by the glass 70, the window frame 9 and the roll screen 2 is formed.
Thereby, since the formed sealed space 3 acts as a heat insulating layer for air, the indoor heating heat is more reliably reflected and the heat is not released to the outside, so that high heat insulating properties can be obtained.
Further, as described above, the resin layer 12 of the heat insulating screen 1 is impermeable to moisture. Therefore, according to the roll screen 2 of the present embodiment that can form the sealed space 3 as described above, moisture is transferred to the outside. It is reliably prevented and the condensation of the glass 70 is suppressed. Moreover, indoor humidity is maintained high, and indoor overdrying is prevented.

Next, an external roll screen will be described.
FIG. 5 is a front view of an external roll screen 2A using the heat insulating screen 1 according to the embodiment. FIG. 6 is a longitudinal sectional view of an external roll screen 2A using the heat insulating screen 1 according to the embodiment.
As shown in FIGS. 5 and 6, the roll screen 2 </ b> A has the same configuration as the roll screen 2 except that the attachment position of the cover box 20 </ b> A is different. That is, the roll screen 2 </ b> A is an external roll screen, and the cover box 20 </ b> A is attached to the indoor side finding surface of the upper horizontal frame 91. In this roll screen 2A, the same airtight valves 221A and 221B as those of the roll screen 2 can be applied. Therefore, in the roll screen 2A, high airtightness can be obtained by pulling down the heat insulating screen 1 to the lowest position and fixing the bottom bar 23.

According to this embodiment described above, the following effects are produced.
In the present embodiment, a fabric layer 11 made of woven fabric or nonwoven fabric, a moisture-impermeable resin layer 12 made of resin, a metal layer 13 containing metal and reflecting infrared rays, and made of resin Then, the heat-insulating screen 1 is configured by laminating the infrared transmitting layer 14 that transmits infrared light in this order.
Thereby, by arranging the infrared transmitting layer 14 covering the metal layer 13 facing the outdoor side, the infrared reflection function of the metal layer 13 is not impaired, and the infrared rays from sunlight are reliably reflected by the metal layer 13. it can. That is, sunlight heat can be reliably reflected and high heat shielding properties can be obtained.
In addition, since the metal layer 13 reflects infrared rays and does not generate heat, the fabric layer 11 arranged closest to the indoor side becomes hotter than the metal layer 13 due to indoor heating heat or the like. Therefore, this temperature gradient formed in the heat insulating screen 1 makes it difficult for indoor heat to be transmitted to the outside, and as a result, higher heat insulating properties are obtained.
Further, by disposing the fabric layer 11 toward the indoor side, the inorganic texture of the resin layer 12 and the like can be eliminated, and high designability can be imparted.
Moreover, since the resin layer 12 is impermeable to moisture, it is difficult to pass indoor moisture. Therefore, the condensation of the glass 70 can be reduced, and indoor overdrying can be suppressed.

  Since the heat insulating screen of Patent Document 1 described above further includes a non-woven fabric layer in addition to the non-woven fabric light diffusion layer, the visible light transmittance is low and sufficient indoor brightness cannot be secured. On the other hand, in this embodiment, the visible light transmittance of the heat insulation screen 1 was set to 30 to 80%. Thereby, since the high visible light transmittance | permeability is obtained, the brightness of sunlight can be reliably taken in indoors.

  In the present embodiment, the infrared transmittance of the infrared transmitting layer 14 is set to 60 to 99%. Thereby, sunlight can be reflected with high efficiency, without impairing the infrared reflective function of the metal layer 13. Therefore, it is possible to suppress an increase in summer indoor temperature and to increase radiation to make it difficult to transmit indoor heat to the outside.

  Moreover, in this embodiment, the heat insulation screen 1 which has the above-mentioned effect was used for the roll screens 2 and 2A. Thereby, since the above-mentioned effect is exhibited more reliably and high heat insulation is obtained by using the heat insulation screen 1 which has the above-mentioned effect for the roll screens 2 and 2A, the heating / cooling cost can be reduced.

In the conventional roll screen mounting structure of Patent Document 1, there are many gaps between the roll screen and the wall or window frame, and the humidity and heat cannot be shut off, so problems such as window glass condensation and cold drafts occur. Has occurred.
Therefore, in this embodiment, the airtight valves 221A and 221B are provided inside the guide grooves of the pair of side rails 21 and 22. Thereby, when the bottom bar 23 is pulled down to the lower end and fixed, there is no gap between the window frame 9 and the roll screens 2 and 2A, and the inside of the window frame 9 is sealed. That is, the sealed space 3 surrounded by the glass 70, the window frame 9, and the roll screens 2 and 2A is formed. Then, since the formed sealed spaces 3 and 3A act as a heat insulating layer of air, the indoor heating heat is more reliably reflected and the heat is not released to the outside, so that a high heat insulating property is obtained. Since there is no gap, the occurrence of cold drafts can be prevented. Airtight valves 221A and 221B are made of polyurethane, polyester, rubber-based materials (butyl, silicon, chloroprene, Teflon (registered trademark), NBR, SBR, EP, EPDM, etc.), paper, metal, wood, PVC, FRP, etc. Is done.
Further, as described above, the resin layer 12 of the heat insulating screen 1 is impermeable to moisture. Therefore, according to the roll screens 2 and 2A of the present embodiment that can form the sealed spaces 3 and 3A as described above, the resin is exposed to the outside. Moisture movement can be reliably prevented, and condensation of the glass 70 can be suppressed. Moreover, indoor humidity can be maintained high and indoor overdrying can be prevented.
In addition, when the roll screens 2 and 2A are pulled down to the lower end, the sealed space 3 and 3A are formed between the glass 70 and the window frame 9 and the roll screens 2 and 2A. Even glass pieces are not scattered indoors and are safe.

(Second Embodiment)
FIG. 7 is a cross-sectional view of a heat insulating screen 1A according to the second embodiment.
As shown in FIG. 7, the heat insulating screen 1 </ b> A according to the present embodiment is provided with a design on at least a surface of the resin layer 12 </ b> A and a point constituted by a three-layered body having no fabric layer. In the point, it differs from the heat insulation screen 1 which concerns on the above-mentioned 1st Embodiment. In addition, about structures other than these differences, it is the same as 1st Embodiment, and the same point as 1st Embodiment also in the point applicable to each above-mentioned roll screen.

  Examples of a method for imparting design properties to the surface of the resin layer 12A include embossing and printing on the surface. Moreover, the method of decorating the resin layer surface is also mentioned. By these methods, design properties are imparted to the surface of the resin layer 12A exposed to the indoor side by not providing the fabric layer.

  According to the heat insulating screen 1 </ b> A of the present embodiment having the above configuration, the same effects as the heat insulating screen 1 of the first embodiment are exhibited.

It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
In the said embodiment, although the heat insulation screen was used as a roll screen, it is not limited to this. For example, it can be used for an awning that is installed outside a building and blocks sunlight.
Moreover, you may give designability also to the outdoor side surface of the infrared transmission layer of the outdoor side in the said embodiment.

DESCRIPTION OF SYMBOLS 1,1A ... Thermal insulation screen 2, 2A ... Roll screen 9 ... Window frame 11 ... Fabric layer 12, 12A ... Resin layer 13 ... Metal layer 14 ... Infrared transmission layer 20 ... Cover box (winding part)
21, 22 ... Side rail 24 ... Winding shaft (winding part)
91 ... Upper horizontal frame 92 ... Left vertical frame (both vertical frames)
93 ... Right vertical frame (both vertical frames)
220A, 220B ... Guide groove 221A, 221B ... Airtight valve

Claims (6)

An impermeable resin layer composed of a resin and having at least a design on its surface;
A metal layer that includes metal and reflects infrared rays;
A heat-insulating screen comprising a resin and an infrared transmission layer that transmits infrared rays, which are laminated in this order. A fabric layer composed of woven or non-woven fabric;
A moisture-impermeable resin layer made of resin;
A metal layer that includes metal and reflects infrared rays;
A heat-insulating screen comprising a resin and an infrared transmission layer that transmits infrared rays, which are laminated in this order.   The heat insulating screen according to claim 1 or 2, wherein the heat insulating screen has a visible light transmittance of 30 to 80%.   The infrared transmission layer is composed of at least one selected from the group consisting of a polypropylene resin, a polyethylene resin, an olefin resin, and a polyamide resin, and has an infrared transmittance of 60 to 99%. 4. The heat insulating screen according to any one of 3 to 4. A roll screen attached to a window frame of a building,
A heat insulating screen according to any one of claims 1 to 4,
A winding part that is provided on the upper horizontal frame of the window frame and winds up the heat insulating screen;
A roll screen comprising: a pair of side rails provided on both vertical frames of the window frame and having guide grooves into which both end portions of the heat insulating screen are slidably inserted.   The roll screen according to claim 5, wherein an airtight valve is provided inside the guide grooves of the pair of side rails.

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