Eaves

Abstract

To provide an eaves capable of ensuring visibility and a sense of openness while securing the original function of the eaves of blocking solar heat.SOLUTION: An eaves 10 provided on an outer wall 102 of a building includes: an upper panel 11 and a lower panel 12 with light transmissivity; and a solar heat control film 13 sandwiched between the upper panel 11 and the lower panel 12, through which visible light penetrates and which reflects or absorbs solar heat.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a canopy provided on the outer wall of a building. [Background technology]

[0002] Eaves are provided above openings of a building so as to protrude from the exterior wall, and serve to provide shade and protection from rain (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-223346 A Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional eaves are opaque and can block solar heat, but they have the problem of reducing the amount of incoming light and making the room dark. In addition, they also have the problem of reducing the sense of openness by restricting visibility.

[0005] The present disclosure has been made in consideration of such problems, and its purpose is to provide an eaves that can ensure visibility and a sense of openness while maintaining the original function of the eaves of blocking solar heat. [Means for solving the problem]

[0006] In order to solve the above problems, one embodiment of the eaves of the present invention is a eaves installed on the exterior wall of a building, and comprises upper and lower panels having translucency, and a solar heat control film sandwiched between the upper and lower panels that transmits visible light and reflects or absorbs solar heat. [Brief description of the drawings]

[0007] [Figure 1]FIG. 2 is a schematic cross-sectional view for explaining a canopy according to an embodiment of the present invention. [Diagram 2] 11A to 11C are diagrams for explaining a method for manufacturing canopies according to an embodiment of the present invention. [Diagram 3] 11A and 11B are diagrams for explaining the function of the canopy according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The present invention will be described below with reference to the drawings based on preferred embodiments. The same or equivalent components and parts shown in each drawing are given the same reference numerals, and duplicated explanations will be omitted as appropriate. The dimensions of the parts in each drawing are enlarged or reduced as appropriate for ease of understanding. Some of the parts that are not important for explaining the embodiment are omitted in each drawing. In addition, when terms indicating directions such as "up," "down," "front," "back," "left," "right," "inside," and "outside" are used in this specification, they refer to the directions in the posture when the eaves are installed on the building.

[0009] 1 is a schematic cross-sectional view illustrating a canopy 10 according to an embodiment of the present invention. The canopy 10 is provided above an opening 100 of a building in which a window glass 101 is arranged, so as to protrude laterally from an exterior wall 102.

[0010] As shown in Fig. 1, the canopy 10 includes a light-transmitting upper panel 11 and a lower panel 12. The upper panel 11 and the lower panel 12 are arranged parallel to each other. The upper panel 11 and the lower panel 12 may be glass panels or resin panels (e.g., polycarbonate or acrylic).

[0011] In FIG. 1, upper panel 11 and lower panel 12 extend horizontally, but they may be installed so as to slope downward in the protruding direction P of eave 10 (i.e., the direction from base portion 20 to tip portion 21).

[0012] As shown in Fig. 1, a solar heat control film 13 and a shatterproof film 14 are provided between the upper panel 11 and the lower panel 12. The solar heat control film 13 and the shatterproof film 14 are sandwiched between the upper panel 11 and the lower panel 12. As shown in Fig. 1, from the bottom, the lower panel 12, the shatterproof film 14, the solar heat control film 13, and the upper panel 11 are laminated in this order. In this embodiment, the solar heat control film 13 and the shatterproof film 14 are provided uniformly over substantially the entire area of ​​the upper panel 11 and the lower panel 12.

[0013] The solar heat control film 13 may be a solar heat reflecting film that reflects solar heat, or a solar heat absorbing film that absorbs solar heat. The solar heat reflecting film may be made of, for example, titanium, stainless steel, tin, chromium, etc. The solar heat absorbing film may be made of, for example, iron, nickel, cobalt, etc. In either case, the solar heat control film 13 prevents the transmission of solar heat while allowing the transmission of visible light at all times. The thickness of the solar heat control film 13 may be about 10 nm to 15 nm.

[0014] The shatterproof film 14 may be made of, for example, polyethylene terephthalate (PET), and may have a thickness of about 50 μm to 70 μm.

[0015] 2 is a diagram for explaining a manufacturing method of the eaves 10 according to the embodiment of the present invention. First, a solar heat control film 13 is formed on the lower surface of the upper panel 11. The solar heat control film 13 can be formed, for example, by a sputtering method. Next, a shatterproof film 14 is sandwiched between the surface of the upper panel 11 on which the solar heat control film is formed and the upper surface of the lower panel 12. The shatterproof film 14 can be adhered using ultraviolet curing, acetate-based silicone, fusion adhesion, or the like.

[0016] The thickness of upper panel 11 and the thickness of lower panel 12 may be the same or different. For example, the thickness of upper panel 11 and the thickness of the lower panel may both be 3 mm, or the thickness of the upper panel may be 3 mm and the thickness of the lower panel may be 2 mm.

[0017] Fig. 3 is a diagram for explaining the function of the canopy 10 according to the embodiment of the present invention. In Fig. 3, solar radiation heat H and visible light L from the sun are illustrated.

[0018] The eaves 10 according to this embodiment are transparent to visible light. Therefore, as shown in Fig. 3, visible light L from the sun can be transmitted through the eaves 10 and taken into the room.

[0019] On the other hand, the eaves 10 according to this embodiment includes a solar heat control film 13 between the upper panel 11 and the lower panel 12, and therefore reflects (or absorbs) the solar heat H from the sun. This makes it possible to block the solar heat from entering the room.

[0020] In this way, the eaves 10 of this embodiment can allow visible light L to enter the room while maintaining the original function of the eaves of blocking solar heat H, thereby ensuring visibility and a sense of openness.

[0021] In the eaves 10 according to this embodiment, the solar heat control film 13 is provided uniformly over almost the entire area of ​​the upper panel 11 and the lower panel 12. For example, if the solar heat control film is provided in stripes, the stripes will be visible to some extent and there is a risk of distortion of the field of view. By providing the solar heat control film 13 uniformly as in the eaves 10 according to this embodiment, a highly designed eaves can be realized without stripes or distortion of the field of view. Furthermore, when the solar heat control film is provided uniformly, it can be manufactured at approximately 1 / 10 the cost compared to when the solar heat control film is provided in stripes.

[0022] Furthermore, the eaves 10 according to this embodiment is provided with the shatterproof film 14, which can reduce scattering of fragments when the upper panel 11 or the lower panel 12 is broken, thereby enhancing safety. The shatterproof film 14 is particularly important when glass panels are used as the upper panel 11 or the lower panel 12.

[0023] Solar heat control films are generally susceptible to oxidation, which can cause a decrease in performance and discoloration. Shatterproof films can also deteriorate due to contact with outside air. In the eaves 10 according to this embodiment, the solar heat control film 13 and the shatterproof film 14 are sandwiched between the upper panel 11 and the lower panel 12, and the solar heat control film 13 and the shatterproof film 14 are structured not to come into contact with outside air. This can prevent the above-mentioned deterioration of the solar heat control film 13 and the shatterproof film 14.

[0024] The present invention has been described above based on the embodiment. This embodiment is an example, and various modifications and changes are possible within the scope of the claims of the present invention, and it is understood by those skilled in the art that such modifications and changes are also within the scope of the claims of the present invention. Therefore, the description and drawings in this specification should be treated as illustrative rather than restrictive. [Explanation of symbols]

[0025] 10 eaves, 11 upper panel, 12 lower panel, 13 solar heat control film, 14 shatterproof film, 20 base portion, 21 tip portion, 100 opening, 101 window glass, 102 exterior wall.

Claims

1. A canopy installed on the exterior wall of a building, an upper panel and a lower panel having optical transparency; a solar heat control film sandwiched between the upper panel and the lower panel, the solar heat control film transmitting visible light and reflecting or absorbing solar heat; Equipped with The solar heat control film is uniformly provided over substantially the entire area of ​​the upper panel and the lower panel, The upper surface of the solar heat control film is covered by the lower surface of the upper panel, and the lower surface of the solar heat control film is covered by the upper surface of the lower panel, An eave characterized in that no solar heat control film is provided on the upper surface of the upper panel or on the lower surface of the lower panel.

2. The awning of claim 1 further comprising a shatterproof film sandwiched between the upper panel and the lower panel.

Images