JPH0417714Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to high side walls used for stairs, escalators, pedestrian bridges, etc.

[Summary of the invention] This invention selectively scatters only incident light within a predetermined angle range with respect to the film on high side walls used for stairs, escalators, pedestrian bridges, etc., and scatters incident light at other angles. A light control film that transmits incident light is applied to a transparent plastic or glass surface or between transparent plastic or glass to protect people on stairs, escalators, pedestrian bridges, etc. from viewing diagonally below. Furthermore, for safety or aesthetic reasons, light from other directions is allowed to pass through.

[Industrial Application Field] The present invention relates to side walls used for stairs, escalators, pedestrian bridges, balconies, corridors in high places of buildings, partitions, etc.

[Prior art] Side walls used in conventional staircases, escalators, pedestrian bridges, balconies, corridors in high places of buildings, partitions, etc. are either transparent and visible from all angles, or opaque and completely invisible. It consists of a shell.

[Problems to be solved by the invention] Conventional side walls as described above are already widely used for stairs, escalators, etc. in large stores, pedestrian bridges, etc. However, recently, the following problems have been pointed out regarding such side walls.

That is, in the case of transparent side walls, they can be seen from all angles, making the area brighter and more aesthetically pleasing, but they can also be seen from diagonally below, which poses a problem, especially for women. On the other hand, if the side wall is opaque and cannot be seen through at all, it may block the view from diagonally downward, but it will not be visible from all angles, which poses a problem in terms of aesthetics and safety.

This invention focuses on the above-mentioned problems with the side walls used in conventional stairs, escalators, pedestrian bridges, etc., and blocks the view from diagonally below.
We also propose a side wall that is excellent from both safety and aesthetic points of view.

[Means for solving the problem] The present invention uses a light control film that selectively scatters only incident light within a predetermined angular range with respect to the film, and transmits incident light at other angles, using a transparent plate. A high side wall made of a laminate attached to the surface or interposed between a plurality of transparent plates. The predetermined angle range is 10° to 90° downward, measured from the inside of the side wall at a right angle to the side wall and horizontally.
It is preferable that it is within the range of .

In addition, the light control film used in the present invention is obtained by curing a resin composition consisting of an oligomer and a monomer, or monomers each having a difference in refractive index, and is preferably a photopolymerizable film having a difference in refractive index. It is obtained by irradiating and curing a resin composition consisting of an oligomer and a photopolymerizable monomer or photopolymerizable monomers together with ultraviolet rays, but the angular dependence depends on the irradiation angle of ultraviolet rays, the difference in the refractive index of the resin composition, etc. It is determined accordingly.

The thickness of the light control film used in the present invention is 20 to 2000 μm. The manufacturing method of this light control film was previously applied for a patent by the inventors of the present invention.
No. 61-302500 (filed on December 18, 1986, "Light control board and its manufacturing method") and patent application, Showa
Filed on June 11, 1962, "Light control board and its manufacturing method"
It is described in.

Further, the transparent plastic plate used in the present invention is not particularly limited as long as it is transparent, and any transparent plastic plate can be used. Suitable examples include polycarbonate resin, acrylic resin, methacrylic resin, and polystyrene resin. Further, as the glass plate used in the present invention, float glass used for automobiles can be used.

Further, in the present invention, the method of attaching the light control film and the transparent plate such as transparent plastic or glass plate is not particularly limited, and any known method can be used. For example, as shown in FIG. 3, the light control film 1 may be applied to the surface of a glass plate or transparent plastic plate 2, and as shown in FIG. Alternatively, as shown in FIG. 5, the light control film 1 may be sandwiched between the glass plates 2 and 2', and a plastic plate 3 may be further bonded to the outer surface of the glass plate. good. Preferably, the outer surface of the plastic board is provided with a scratch-resistant coating.

The high-place side wall of the present invention refers to a side wall located at a relatively high position that may be exposed to the view of others from diagonally below.For example, in addition to the side walls of stairs, escalators, pedestrian bridges, etc., This includes the side walls of buildings, the side walls of hallways in buildings, and the side walls of the footwells of spectator seats in gymnasiums, baseball stadiums, theaters, etc.

[Example] Next, an example of the soundproof wall of the present invention will be described with reference to the drawings.

100 parts of tribromophenoxyethyl acrylate (refractive index 1.567) per 100 parts of polyether urethane acrylate (refractive index 1.481) obtained by the reaction of polypropylene glycol with an average molecular weight of 2000, toluene diisocyanate and 2-hydroxyethyl acrylate. A resin composition containing 6 parts of benzyl dimethyl ketal and 6 parts of benzyl dimethyl ketal was placed horizontally in a 60 cm x 120 square with a 1 mm thick spacer in between.
Injected between cm glass plates. 50cm above the glass plate
At a distance of 30 degrees and 60 degrees to one side, respectively, from a vertical plane erected on an imaginary line approximately in the center of the glass plate surface drawn at an angle of 30 degrees in the same plane from a line parallel to the short side of the glass plate. Two rod-shaped ultraviolet high-pressure mercury lamps (80W/cm, 2kw,
An ultraviolet ray with an emission diameter of approximately 2 cm and an emission length of 25 cm (manufactured by Ushio Electric Co., Ltd.) was placed parallel to the virtual line and the glass surface and parallel to each other, and the lamp was irradiated for 1 minute to obtain a cured sheet. The obtained cured sheet is cloudy when viewed from an angle of 10-80 degrees measured from the vertical plane parallel to the length direction of the lamp from the glass surface, and transparent when viewed from other angles. It was hot. FIG. 6 shows the turbidity measurement results for this cured sheet.

Figure 1 shows an escalator in a large store. FIG. 1A is a conventional transparent sidewall that is visible from all angles. Therefore, it is impossible to block the view from diagonally below. FIG. 1B shows a side wall according to the present invention, in which the cured sheet is used for the side wall. In Figure 2B, within the range of 10° to 80° diagonally downward to the outside (right side of the drawing), for example, 40° from the horizontal and
It selectively blocks the line of sight from a 60° angle of inclination.
However, in directions other than diagonally downward, such as the upper left (5° from the horizontal) and lower left (20° from the horizontal) in Figure 2 A.
You can see everything from there.

[Brief explanation of the drawing]

FIG. 1 shows the situation in which the side wall of an escalator is used as the side wall at a high place in the present invention, and FIG. 2 shows the light transmission state of the light control film used in the present invention. Further, FIGS. 3 to 5 show specific examples of cross-sectional views of the side walls of the present invention. Furthermore, FIG. 6 shows a specific example of the angle dependence characteristic diagram of the film. Explanation of symbols: a...Escalator, b...Side wall.

Claims (1)

[Claims for Utility Model Registration] 1. Covering the surface of a transparent plate with a light control film that selectively scatters only incident light within a predetermined angle range with respect to the film, and transmits incident light at other angles. A high side wall having a laminate formed by a laminate or interposed between a plurality of transparent plates. 2. The predetermined angular range is measured from the inside of the side wall at right angles to the side wall and in a horizontal direction,
The high side wall according to claim 1 of the utility model registration, which is within the range of 10° to 90° downward. 3. The high side wall according to claim 1, wherein the film is obtained by curing a resin composition consisting of an oligomer and a monomer or monomers each having a different refractive index. 4. A claim for utility model registration where the film is obtained by curing a resin composition consisting of a photopolymerizable oligomer and a photopolymerizable monomer or monomers each having a different refractive index by irradiating ultraviolet rays. Side walls at high places as described in Range 1.