JPS6119002Y2 - - Google Patents

Description

[Detailed Description of the Invention] In the present invention, a fiber sheet is integrally layered on the inner surface of a synthetic resin sheet, and these are formed into a dome shape. This invention relates to a daylight dome that is strong and has a unique appearance.

Actively bringing sunlight into a room and using it for daylighting has recently become popular from the standpoint of energy conservation. Lighting domes are attached to the roofs and ceilings of buildings for this purpose, and domes made of thermoplastic synthetic resin are often used because they are lightweight and easy to mold. However, daylighting domes made by molding synthetic resin sheets,
Compared to building exterior materials such as tiles and wall materials, it is somewhat inferior in strength, and due to its location, it is constantly exposed to wind and rain, so there were concerns about its strength. For this reason, so-called FRP daylighting domes are also used, but compared to the above-mentioned domes, these domes have lower light transmittance and poor weather resistance, so they tend to reduce daylighting efficiency especially when used for long periods of time. It was hot. In addition, the appearance of domes up until now has been uniform and has not changed much, but as daylight domes have recently been adopted in general households,
There is now a demand for improved appearance when viewed from indoors, as well as for nighttime shielding.

In view of these points, the present invention aims to provide a lighting dome that uses a synthetic resin sheet but has improved the above-mentioned drawbacks. Resin sheet 1
The dome for daylighting is characterized in that the fiber sheet 2 laminated on the inner surface of the dome is heated and formed into a dome shape in a laminated state.

The present invention will be described below with reference to drawings of embodiments.

In the figure, 1 is a sheet made of a transparent or translucent synthetic resin such as methacrylic resin, styrene resin, polycarbonate resin, or vinyl chloride resin, and is generally formed by extrusion molding, cast polymerization, calendar molding, etc. Manufactured by. The thickness of the sheet 1 is not particularly limited as long as it can be heat-formed, and is determined depending on the desired shape and size, and is usually 0.3 to 8 mm.
It is. Of course, this sheet 1 may be transparent or colored in an appropriate color such as milky white. Among these materials, methacrylic resin, which has excellent weather resistance and optical properties, is particularly preferred.

For 2, fiber sheets, acrylic fibers, modacrylic fibers, acetate fibers, vinyl chloride fibers, vinylidene chloride fibers, nylon fibers, etc. can be used. Since the fiber sheet 2 is subjected to heat molding together with the synthetic resin sheet 1 described above, it has a softening point above a certain level,
Moreover, it is desirable that there be as much temperature difference as possible between the softening point and the melting point. From this point of view, acrylic fibers, modacrylic fibers, and nylon fibers are particularly preferred. The form of the fiber sheet 2 is as follows:
Any sheet-like material made of fiber such as woven fabric, knitted fabric, or non-woven fabric can be used. The fineness, basis weight, or structure of the fiber sheet 2 to be used is appropriately selected depending on the purpose and shape, and may be preformed in some cases.

The present invention involves laminating the translucent synthetic resin sheet 1 and the fiber sheet 2 as described above, and in this state, as shown in the figure, the fiber sheet 2 is placed on the inner surface and is heated and formed into a dome shape. The purpose is to obtain a daylighting dome by simultaneously carrying out the lamination integration and shaping. The dome shape is not limited to this example, and may be square, chevron-shaped, saddle-shaped, or the like. As this heat forming, vacuum forming, pressure forming, etc., which are generally performed on synthetic resin sheets, are used.

In the present invention, since lamination and molding are performed simultaneously as described above, the fiber sheet 2 is also stretched as the synthetic resin sheet 1 is stretched, and eventually the two are completely brought into close contact with each other on the mold surface etc. and are integrated. Ru. Figure 2 is an enlarged cross-sectional view of a part of the daylighting dome in Figure 1.
A fiber sheet 2 is integrated on the inner surface of the synthetic resin sheet 1. Therefore, the fibers reinforce the lighting dome and improve its strength.
Further, when the fiber sheet 2 is positioned on the inner surface in this manner, the dome looks beautiful when viewed from the indoor side, and dew condensation on the inner surface of the dome can be prevented.

FIG. 3 is a sectional view showing an example of the invention shown in FIG. 2 of the present invention, in which a synthetic resin film 3 such as an acrylic film or a styrene film is placed between the transparent synthetic resin sheet 1 and the fiber sheet 2 described above. A dome for daylighting is formed. Since the main purpose of this film 3 is to improve the adhesion between the sheets 1 and 2, it is desirable that the film 3 be appropriately softened or melted during the heat molding step of the synthetic resin sheet 1. Of course, the design effect of the lighting dome can be further enhanced by coloring the film 3.

FIG. 4 is a cross-sectional view showing an example of the invention of item 3 of the present invention, in which an acrylic adhesive, a vinyl acetate adhesive is used between the translucent synthetic resin sheet 1 and the fiber sheet 2.
A lighting dome is formed by interposing four layers of liquid, paste, or powder adhesive such as urethane adhesive. This adhesive 4 is used to make the two sheets 1 and 2 stick together, but the adhesive 4 is used to adhere the sheets 1 and 2 together.
Alternatively, it may be applied to the fiber sheet 2, or it may be injected or sprinkled between them during lamination. In particular, if four layers of adhesive are formed on one side of the fiber sheet 2 in advance using a resin processing method, handling during heat molding will be convenient, and if four layers of sticky adhesive are used, it will be possible to It is also possible to adhere it to the resin sheet 1.

Since the present invention has the above-mentioned configuration, the lighting dome of the present invention has a synthetic resin sheet and a fiber sheet integrally laminated, and both are stretched and bonded together by heat molding, so that the dome has a high strength. It has the excellent effect of improving the appearance and appearance, and also has the excellent effect of not reducing the lighting effect and being beautiful when viewed from the indoor side.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of a daylighting dome showing an embodiment of the present invention, Fig. 2 is a partially enlarged sectional view thereof,
FIG. 3 is a partially enlarged sectional view showing an example of the second aspect of the present invention, and FIG. 4 is a partially enlarged sectional view showing an example of the third aspect of the present invention. 1... Translucent synthetic resin sheet, 2... Fiber sheet, 3... Synthetic resin film, 4... Adhesive.

Claims (1)

[Claims for Utility Model Registration] 1. A light-transmitting synthetic resin sheet 1 and a fiber sheet 2 laminated on the inner surface thereof are heat-formed in a laminated state to form a dome shape. A dome for daylighting. 2. The daylighting dome described in claim 1 of the utility model registration claim, characterized in that three layers of synthetic resin film are interposed between the sheets 1 and 2. 3. The lighting dome described in claim 1 of the utility model registration claim, characterized in that an adhesive 4 is interposed between the sheets 1 and 2.