WO2019044981A1

WO2019044981A1 - Sunshine shielding device and slat

Info

Publication number: WO2019044981A1
Application number: PCT/JP2018/032140
Authority: WO
Inventors: 英二金子; 将史川上
Original assignee: 立川ブラインド工業株式会社
Priority date: 2017-08-31
Filing date: 2018-08-30
Publication date: 2019-03-07
Also published as: EP3677747A4; JP2019044461A; CN111194375A; EP3677747A1

Abstract

Provided is a sunshine shielding device that enables reduction in thickness of a shielding material for reflecting heat rays. According to the present invention, a horizontal blind is provided with: a head box through which a lifting cord is suspended; and a slat 12 that moves vertically in accordance with the vertical movement of the lifting cord. The slat 12 is provided with: a base material 31 equipped with a convex surface 31a and a concave surface 31b; an infrared reflecting layer 33 for reflecting infrared rays on the concave surface 31b of the base material 31; and a solar light reflecting layer 32 for reflecting solar light on the convex surface 31a. The infrared reflecting layer 33 is formed by thermal transfer.

Description

Solar shading device and slat

The present invention relates to a solar radiation shielding device and a slat provided with a shielding material that reflects infrared light.

Patent Document 1 describes a horizontal blind as a solar radiation shielding device. This horizontal blind has a function of reflecting heat rays, and is processed on a base material composed of a transparent film, the solar light reflection layer and the infrared light reflection layer, and the base material is a synthetic resin substrate as a shielding material It adheres to the surface of.

Japanese Patent Publication No. 04-22705

By the way, even in this type of horizontal blind, thinning of the slat is required. In the horizontal blind of Patent Document 1, it is difficult to further reduce the thickness of the slat and, consequently, to reduce the weight of the entire horizontal blind, since the infrared reflective layer is bonded to the slat via a substrate composed of a transparent film. .

And since thickness reduction of a shielding material leads also to weight reduction of the whole, it is calculated | required similarly not only to a horizontal blind but to solar shading apparatuses, such as a vertical blind, a pleat screen, and a roll screen.

The present invention was made in order to solve the above-mentioned subject, and the object is to provide a solar radiation shielding device and a slat which enabled slimming down of a shielding material which reflects infrared rays.

A solar radiation shielding device for solving the above problems includes a shielding material supported by a support member, and the shielding material includes a substrate, and an infrared reflection layer that reflects infrared radiation on one surface of the substrate. The infrared reflection layer is provided on the one surface via an adhesive layer or directly on the one surface.

The solar radiation shielding device for solving the above-mentioned subject is provided with a shielding material supported by a support member, and the shielding material is a base material and one side of the base material, and infrared rays are low with respect to the base material. And an infrared low radiation layer which is radiation.

In the above-mentioned solar radiation shielding apparatus, the support member rotatably supports the shielding material, and the shielding material rotates by the one surface and the other surface opposite to the one surface. May be selectively directed to the indoor side.

In the above-mentioned solar radiation shielding device, when the infrared reflection layer is provided on the one surface via an adhesive layer, the infrared reflection layer may be provided by thermal transfer.
In the above-mentioned solar radiation shielding device, when the infrared ray reflective layer is provided directly on the one side, a paint containing an infrared ray reflective material may be applied and provided.

In the above-mentioned solar radiation shielding apparatus, the other surface opposite to the one surface of the base material may be provided with a solar light reflection layer that reflects colorable sunlight.
In the above-mentioned solar radiation shielding device, the surface of the solar light reflection layer may be provided with an antifouling layer.

In the above-mentioned solar radiation shielding device, the base is configured such that the opposite surface is a convex surface and a concave surface, the one surface is the concave surface, the infrared reflection layer is provided on the concave surface, and the solar light reflection layer is You may be equipped with the said convex surface.
In the above-mentioned solar radiation shielding device, the shielding material may be a slat, and the substrate may be made of a metal plate.

A slat for solving the above problems includes a substrate, an infrared reflection layer that reflects infrared light on one surface of the substrate, and the other surface of the substrate opposite to the one surface, And a solar light reflection layer that reflects sunlight, wherein the infrared light reflection layer is provided to the one surface via an adhesive layer or directly to the one surface.

According to the present invention, it is possible to provide a solar radiation shielding device and a slat that enable thinning of a shielding material that reflects infrared light.

The front view of the horizontal blind in one embodiment. The principal part perspective view of the horizontal blind in one embodiment. The principal part sectional view of the slat used for the horizontal blind in one embodiment. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a room in which a horizontal blind in one embodiment is used. Sectional drawing which shows the time of positive shielding of a slat. Sectional drawing which shows the time of reverse shielding of a slat. The principal part sectional view of the slat in a 2nd embodiment. Principal part sectional drawing of the slat in 3rd Embodiment.

Hereinafter, a horizontal blind according to an embodiment will be described with reference to the drawings.
First Embodiment
As shown in FIGS. 1 and 2, the horizontal blind 10 includes a head box 11 attached to an attachment portion such as a ceiling, a window frame, and a curtain box, and a plurality of slats 12 as shielding members for shielding sunlight. There is. In addition, the horizontal blind 10 includes three ladder cords 13 as a supporting member which is suspended from the head box 11 and supports the plurality of slats 12 in a tilt adjustable manner, and a bottom rail 14 located below the lowermost slat 12. And a first lifting cord 15a and a second lifting cord 15b which are suspended from the head box 11 and whose one end is connected to the bottom rail 14. Then, the first lifting cord 15a and the ladder cord 13 are disposed at each of both ends in the longitudinal direction of the slat 12, and the second lifting cord 15b and the ladder cord 13 are disposed at an intermediate portion in the longitudinal direction of the slat 12. ing.

The slat 12 is formed in an elongated rectangular thin plate shape, one surface of which is a lower surface being an arc-shaped concave, and the other surface being an upper surface portion is an arc-shaped convex. The plurality of slats 12 are arranged along the raising and lowering direction which is the height direction of the horizontal blind 10, and are supported so as to be tilt adjustable by a ladder cord 13 suspended from the head box 11. Below the lowermost slat 12, a bottom rail 14 having substantially the same length as the slat 12 is disposed.

The bottom rail 14 functions as a weight member when maintaining the lowered state of the plurality of slats 12 and is formed of a metal material such as SECC. The bottom rail 14 has substantially the same longitudinal length and latitudinal width as the slats 12, and a plurality of slats 12 are stacked on the bottom rail 14 when the bottom rail 14 is pulled up. The ladder cords 13 are connected to the bottom rail 14. The bottom rail 14 is connected to the first lifting cord 15a and the second lifting cord 15b drawn from the head box 11, and is suspended from the head box 11 by the first lifting cord 15a and the second lifting cord 15b. .

In each of the plurality of slats 12 constituting the slat group, rectangular through holes 21 whose long sides are in the lateral direction are provided at both ends in the longitudinal direction of the slats 12 in the longitudinal center which is the lateral direction. Is arranged. Further, at the central portion in the longitudinal direction of the slat 12, the second lifting cords 15b are disposed at opposite side edges of the slat 12 in the front-rear direction. The slat 12 is not formed with a through hole required for inserting the second lifting cord 15b. In the central portion in the longitudinal direction of the slat 12, high light shielding property is secured because the above-mentioned through hole is not formed.

The head box 11 is provided with a tilt pole 18 as an operation part for moving the bottom rail 14 up and down and an equalizer 19 provided at the tip of the tilt pole 18 in the direction closer to one end in the longitudinal direction. When the tilt pole 18 is rotated to the left and right, the slats 12 are tilted by raising and lowering the warp threads of the ladder cord 13 in opposite directions based on the rotation. The tilt pole 18 can rotate the slat 12 by rotating left and right to switch between the fully closed state and the fully open state. When the equalizer 19 is pulled downward, the bottom rail 14 and the slat 12 can be lifted, and by stopping, the lifting of the bottom rail 14 and the slat 12 can be stopped halfway. During the ascent, the bottom rail 14 ascends, and as the bottom rail 14 ascends, a plurality of slats 12 are stacked on the bottom rail 14 in order from a position close to the bottom rail 14. When the slat 12 is lowered, the equalizer 19 is pulled slightly downward and loosened, and when stopping in the middle, the descent of the bottom rail 14 can be stopped by pulling the equalizer 19 again. At the time of descent, the bottom rail 14 descends, and as the bottom rail 14 descends, each of the plurality of slats 12 also descends together.

The ladder cord 13 includes a pair of warp yarns 13a extending in the height direction of the horizontal blind 10, and a weft yarn 13b disposed between the warp yarns 13a. The weft 13 b supports each slat 12. The warp yarn 13a of the ladder cord 13 along the second lifting cord 15b among the three ladder cords 13 is provided with the pico 13c through which the second lifting cord 15b is inserted. The pico 13c is an annular body configured by pulling out a yarn from the warp yarn 13a, and the second lifting cord 15b is inserted.

As shown in FIG. 3, the slat 12 includes a base 31, a solar light reflection layer 32 provided on the convex surface 31 a of the base 31, and an infrared reflection layer 33 provided on the concave surface 31 b of the base 31.

The base 31 is formed of a synthetic resin plate, a metal plate such as aluminum or stainless steel, or the like, and is formed of a light shielding material. Furthermore, the substrate 31 may also be formed of a flameproof material, or may be formed of wood board. The base material 31 has an arc shape in cross section, and opposing surfaces are a convex surface 31a and a concave surface 31b. The convex surface 31 a faces the outdoor side when the slat 12 is positively shielded, and the concave surface 31 b faces the indoor side. At the time of positive shielding, in the slats 12 adjacent to the upper and lower sides when viewed from the outside of the room, the upper slats 12 are arranged to overlap the lower slats, so that solar radiation enters the room through the gaps of the slats 12 It becomes difficult. Moreover, aluminum is used for the base material 31 here. The base material 31 is provided with a primer layer 35 serving as a base for the adhesive layer 34 of the infrared reflective layer 33.

The solar light reflection layer 32 reflects sunlight (wavelength of about 380 nm to 2500 nm) from visible light to near infrared light. The solar light reflection layer 32 is configured by applying and drying a thermal barrier coating material (paint) containing a solar light reflection component such as aluminum by a coating device such as a roller coater. As an example, the solar light reflection layer 32 is formed on the convex surface 31 a of the base 31 so as to have a film thickness of about 10 μm. In addition, the thermal barrier coating material includes a coloring material such as a pigment, and the convex surface of the slat 12 can be colored in various colors by changing the coloring material. The solar light reflection layer 32 is provided on the convex surface 31a facing the outdoor side at the time of positive shielding which can reduce the amount of incident solar light into the room, so that more sunlight can be reflected to the outdoor side.

The infrared reflection layer 33 is a layer that reflects much of infrared light, particularly far infrared light (wavelength: about 10 μm to 20 μm). Further, the infrared reflection layer 33 is, in other words, an infrared low radiation layer in which infrared radiation, particularly far infrared radiation, is low with respect to the base material 31, and here, low radiation relative to aluminum of the base material 31. Moreover, the infrared reflectiveness layer 33 permeate | transmits sunlight as an example. The infrared reflection layer 33 is made of, for example, a metal thin film containing silver or metal oxide (such as zinc oxide or tin oxide), and is made of, for example, Low-E (Low Emissivity). The infrared reflective layer 33 is adhered to the base 31 by the adhesive layer 34. As an example, the infrared reflective layer 33 is provided on the concave surface 31 b of the substrate 31 by thermal transfer.

The sheet for providing the infrared reflective layer 33 to the concave surface 31 b is a thermal transfer sheet, the release sheet is provided with the release layer, the infrared reflective layer 33 is provided on the release layer, and the infrared reflective layer 33 is further provided. The adhesive layer 34 is provided on the Then, the adhesive layer 34 is bonded to the concave surface 31b, and thereafter, the infrared transfer layer 33 is fixed to the concave surface 31b by the adhesive layer 34 by pressing the thermal transfer sheet against the concave surface 31b and further heating. Ru. Thereafter, the release sheet is removed from the infrared reflective layer 33 at the location of the release layer. The infrared reflection layer 33 is a metal thin film and has a thickness that allows the ground color of the base material 31 to be transmitted to some extent, and the color tone of the surface can be changed by changing the ground color of the concave surface 31b. As an example, the adhesive layer 34 to which the infrared reflective layer 33 is adhered is formed to have a thickness of about 10 μm to 20 μm.

The slat 12 as described above is manufactured by thermally transferring the adhesive layer 34 and the infrared reflective layer 33 to the concave surface 31 b after providing the solar light reflective layer 32 on the convex surface 31 a of the base material 31.

Next, the operation of the horizontal blind 10 configured as described above will be described.
The horizontal blind 10 is mounted on the window frame to be mounted such that the bottom rail 14 is positioned below the lower frame of the window frame with the bottom rail 14 lowered. Then, when raising the slat 12 and the bottom rail 14, the horizontal blind 10 pulls the equalizer 19 downward, and the bottom rail 14 is sequentially placed on the bottom rail 14 from the position where the plurality of slats 12 are closer to the bottom rail 14. As you pile up on the Further, when lowering the slat 12 and the bottom rail 14, when the equalizer 19 is pulled slightly downward, the bottom rail 14 is lowered, and each of the plurality of slats 12 is also lowered together with the lowering of the bottom rail 14. . In addition, each slat 12 is tilted in the forward shielding direction or the reverse shielding direction according to the rotation direction as the tilt pole 18 is rotated.

As shown in FIG. 4, in the vicinity of a building etc., it is in the following environment during the daytime. Solar radiation 111 such as sunlight enters the room 100 through the window glass 101, and a portion thereof is reflected by the window glass 101 (1). The solar radiation 111 is partially absorbed by the window glass 101, but most of the solar radiation 111 is transmitted through the window glass 101, reflected by the slats 103 of the horizontal blind 102, and released again through the window glass 101 to the outside of the room 100. (2). In FIG. 4, the horizontal blind 102 is a conventional horizontal blind, and a solar light reflection layer is provided only on one side of the slat 103. A part of the solar radiation 111 transmitted through the window glass 101 is absorbed by the slat 103 and converted into heat energy to warm the slat 103 (3). Further, part of the solar radiation 111 passes through the gap between the slats 103 (4). The slats 103 heated by solar radiation emit radiant heat from far infrared rays (5). Normally, the inside of the room 100 is air conditioned by an air conditioner or the like, and when the air between the window glass 101 and the horizontal blind 102 is heated, the space between the window glass 101 and the horizontal blind 102 and the room The temperature difference with the space generates convection, and the convective heat flows into the room (6). That is, in the room 100, the space inside the horizontal blind 102 is the solar radiation (4) passing through the gap between the slats 103, the radiant heat (5) by far infrared rays from the slat 103, the window glass 101 and the horizontal blinds It will be warmed by convective heat (6) between.

As shown in FIG. 5, in the summer daytime etc., it is preferable that the horizontal blind 10 to which the present invention is applied is in a state where the slat 12 is tilted to a positive shielding state in a state where the slat 12 is lowered. The positive shielding state is because solar radiation is less likely to enter the room from the gap between adjacent slats 12 than the reverse shielding state. In FIGS. 5 and 6, the adhesive layer 34 and the primer layer 35 are not shown.

In this case, the solar light reflection layer 32 located on the convex surface 31a faces the direction of the window glass 101, and the infrared light reflection layer 33 located on the concave surface 31b faces the indoor side. The surface of the window glass 101 side (the outdoor side) of the slat 12 has a high solar reflectance because the sunlight reflection layer 32 is located, can reflect most of the solar radiation 111, and suppresses the temperature rise of the slat 12 Can be done (11). The slat 12 is heated by a part of the solar radiation 111 and emits radiant heat 112. However, much of the radiant heat is radiated to the window glass 101 side (the outdoor side) by the presence of the infrared reflection layer 33. And radiation to the indoor side is suppressed (12). Furthermore, in the room 100 where the temperature is close to room temperature (about 25 ° C.), the radiant heat 113 due to the far infrared radiation is emitted, but the infrared reflective layer 33 reflects the radiant heat 113 so that the indoor heat escapes to the outside Hold back (13).

As shown in FIG. 6, in the daytime of winter and the like, it is preferable to tilt the slat 12 to the reverse shielding state while being lowered. In this case, the infrared reflection layer 33 located on the concave surface 31b faces the direction of the window glass 101, and the sunlight reflection layer 32 located on the convex surface 31a faces the indoor side. Most of the solar radiation 111 from the window glass 101 can be transmitted through the infrared reflection layer 33 to heat the slat 12 and radiate radiant heat 114 to the indoor side through the solar reflection layer 32 to warm the room Can do it (14). At this time, the infrared reflection layer 33 suppresses the radiation heat 114 from being radiated to the outdoor side.

In addition, the state of FIG. 5 is preferable when there is no sunlight due to cloudy weather in winter daytime or at night. This is because far infrared rays radiated from the room can be reflected by the infrared reflection layer 33 facing the room side, and the heat of the room can be suppressed from escaping to the outside (13).

The horizontal blind 10 as described above can obtain the following effects.
(1) The slat 12 has a configuration in which the infrared reflection layer 33 is provided on the concave surface 31b of the base 31 via the adhesive layer 34. Therefore, the film provided with the infrared reflection layer 33 is used as a base It can be thinner than when bonded to 31. Accordingly, the weight reduction of the slat 12 and, consequently, the weight reduction of the horizontal blind 10 can be realized. Further, as the weight of the slat 12 is reduced, the operating force for moving the slat 12 up and down becomes smaller, and the operability can be improved in this respect. Furthermore, in the horizontal blind 10, the folding dimension when the bottom rail 14 is raised in the direction of the head box 11 can be reduced. Thereby, the designability of the horizontal blind 10 can be improved.

(2) Since the infrared reflection layer 33 is provided by thermal transfer, the production efficiency can be improved. As an example, when the infrared reflection layer 33 is provided by a paint, the drying time of the paint is required, but when the infrared reflection layer 33 is provided by thermal transfer, the time corresponding to the drying time of the paint can be shortened. Can be improved.

Second Embodiment
As shown in FIG. 7, the slat 12 may be provided with an antifouling layer 36 on the upper layer of the solar light reflection layer 32. The antifouling layer 36 may be formed by coating a fluorocarbon resin, or titanium oxide may be provided on the upper layer of the underlayer. Thereby, it can prevent that the sunlight reflection layer 32 is polluted.

Further, the slat 12 may be provided with a protective layer 37 on the infrared reflective layer 33. The protective layer 37 may be an antioxidant layer that prevents oxidation of the infrared reflective layer 33, or may be a hard coat layer that also has a scratch prevention function. The protective layer 37 is, for example, a release layer of a thermal transfer sheet. The protective layer 37 may be configured by further coating a paint on the upper layer of the release layer.

Third Embodiment
As shown in FIG. 8, the slat 12 directly applies and dries a coating material (paint) including an infrared reflective material to the concave surface 31 b with a coating device such as a roller coater instead of thermal transfer of the infrared reflective layer 33. It may be configured by In this case, the adhesive layer 34 can be omitted, and further, thinning and weight reduction of the slat 12 can be realized. The primer layer 35 may be omitted or may be made of a material suitable for paint. Furthermore, in the case of paint, coloring materials can be mixed, and the degree of freedom in the design of the infrared reflective layer 33 can be enhanced.

In addition, the above horizontal blind 10 can also be suitably changed as follows, and can also be implemented.
The infrared reflective layer 33 has a metallic luster because it is formed of a metal thin film. When the infrared reflection layer 33 faces the room, the state of the room is reflected on the surface of the slat 12. Therefore, the infrared reflection layer 33 may be subjected to diffuse reflection processing such as matting on the surface to be a non-directional matte surface as the diffuse reflection processed surface. In the second embodiment, the diffuse reflection processing may be performed on the infrared reflective layer 33 or may be performed on the protective layer 37. Thereby, the design of the horizontal blind 10 is improved, and the horizontal blind 10 can be made easy to use.

The solar light reflection layer 32 is not limited to the case where the thermal barrier coating material (coating material) is applied and provided. As an example, the film provided with the solar light reflection layer 32 may be adhered to the substrate 31.

The infrared reflective layer 33 is not limited to the case of thermal transfer if it is provided on the substrate 31 via the adhesive layer 34.

The slat 12 may not be a shape having a convex surface and a concave surface, but may be a flat plate having flat surfaces on both sides.
The slat 12 may be provided with the solar light reflection layer 32 on the concave surface and the infrared light reflection layer 33 on the convex surface.

-At least the shielding material such as the slat 12 may have the infrared reflection layer 33 on one side, and the sunlight reflection layer 32 on the other side may be omitted.
The metal thin film of the infrared reflection layer 33 may be formed directly on the substrate 31 by a sputtering method or a CVD method.
-As the raising and lowering member, in addition to the raising and lowering cord, an raising and lowering tape may be used. The ladder cord may be a ladder tape.

Horizontal blinds can also be applied to motorized horizontal blind systems. In the motorized blind system, there are a motorized blind that raises and lowers and tilts the slat 12 electrically using a motor or the like as a drive source, a sensor installed outdoors and the like to detect solar radiation, and a control device that controls the tilt and elevation of the slat 12 Have. The control device can perform settings such as summer and winter, and performs control to tilt the slat 12 as shown in FIG. 5 in summer daytime (when the sensor detects solar radiation in summer) . In addition, in the winter daytime etc. (when solar radiation is detected in winter), control is performed to tilt the slat 12 as shown in FIG. When the slat 12 is applied to the motorized blind system, the tilt control of the slat 12 can be performed automatically according to the solar radiation, and the energy saving effect can be enhanced.

It may be applied to vertical slats of vertical blinds. In this case, the infrared reflection layer may be provided at least on one surface of the vertical slat, which is a shielding member suspended from the support member in the head box.

Furthermore, it may be applied to a roll screen or a pleated screen. In this case, the support member hanging down from the head box raises and lowers a screen such as cloth serving as a shielding material. Then, an infrared reflection layer may be provided on one side of the screen. The screen preferably has a flameproof performance.

The slats can also be applied to louvers etc. assembled in parallel with a gap as a support member.

-A solar shading device such as a horizontal blind may be disposed between the inner window and the outer window. In addition, it may be disposed inside the translucent partition.

DESCRIPTION OF SYMBOLS 10 ... Horizontal blind, 11 ... Head box, 12 ... Slat, 13 ... Ladder cord, 13a ... Warp, 13b ... Weft, 13c ... Pico, 14 ... Bottom Rail, 15a: first lifting code, 15b: second lifting code, 18: tilt pole, 19: equalizer, 21: through hole, 31: base material, 31a. 31. Convex surface 31b: Concave surface 32: Sunlight reflection layer 33: Infrared reflection layer 34: Adhesive layer 35: Primer layer 36: Antifouling layer 37. .. Protective layer, 100 ... room, 101 ... window glass, 102 ... horizontal blind, 103 ... slat, 111 ... solar radiation, 112 ... radiant heat, 113 ... radiant heat , 114 ... radiant heat.

Claims

A shielding material supported by a support member is provided, the shielding material includes a substrate, and an infrared reflection layer that reflects infrared radiation on one side of the substrate, and the infrared reflection layer is on the one side. A solar radiation shielding device provided opposite to an adhesive layer or directly to the one surface.
A shielding member supported by the support member;
The said shielding material is a solar radiation shielding apparatus provided with a base material and the infrared low radiation layer which is low radiation of infrared rays with respect to the said base material on one side of the base material.
The support member rotatably supports the shielding member,
The solar radiation shielding device according to claim 1, wherein the shielding member is configured such that the one surface and the other surface opposite to the one surface selectively face the indoor side by rotation.
The solar radiation shielding device according to claim 1, wherein the surface on the infrared reflection layer side has a diffuse reflection processed surface.
5. The solar radiation shielding device according to claim 1, wherein the infrared reflection layer is provided by thermal transfer when provided on the one surface via an adhesive layer.
5. The solar radiation shielding device according to claim 1, wherein the infrared reflection layer is configured by applying a paint including an infrared reflection material when provided directly on the one surface.
The solar radiation shielding device according to any one of claims 1 to 3, wherein the other surface of the base opposite to the one surface is provided with a solar light reflection layer that reflects colorable sunlight. .
The solar radiation shielding device according to claim 7, wherein a surface of the solar light reflection layer is provided with an antifouling layer.
The base is composed of convex and concave surfaces facing each other,
The solar radiation shielding device according to claim 7, wherein the one surface is the concave surface.
The shielding material is a slat,
The solar radiation shielding device according to any one of claims 1 to 9, wherein the base material is formed of a metal plate.
A substrate, an infrared reflection layer which reflects infrared light to one surface of the substrate, and a sunlight reflection layer which reflects sunlight to the other surface of the substrate opposite to the one surface Equipped with
The slat provided to the one surface via the adhesive layer or directly to the one surface.