JPH05281420A - Light up device for aluminum louver - Google Patents

Abstract

PURPOSE:To improve durability and to facilitate maintenance by lighting up aluminum louvers by the rays introduced by optical fibers. CONSTITUTION:The photoirradiation ends 14a of optical fiber cables 14 are disposed apart from the aluminum louvers 10 on the outer side of the aluminum louvers 10 and the aluminum louvers 10 are irradiated with the light emitted from the photoirradiation ends 14a so that the aluminum louvers 10 are lighted up at night time. Design covers 16 are disposed on the outer side of the optical fiber cables 14 to cover the optical fiber cables 14 so to make the cables invisible from the lateral side. The optical fiber cables 14 are provided for the respective aluminum louvers 10 or one piece each of the optical fiber cables 14 are provided for two pieces each of the aluminum louvers 10. The other ends of the optical fiber cables 14 are introduced to the point at the leg or central part of the span of a bridge, where operators for maintenance and inspection are easily accessible. The light source is provided at this point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for illuminating an aluminum louver used for making cosmetics under a girder such as an elevated road or a bridge.

[0002]

2. Description of the Related Art In recent years, cosmetics for existing girder covers for existing elevated expressways, bridges, etc. are being developed mainly in the metropolitan area in order to improve the scenery. An aluminum louver formed by bending an aluminum extruded material is often used for this cosmetic treatment.
Then, it is considered to install a fluorescent lamp inside the exterior plate provided so as to face the aluminum louver and light up the aluminum louver at night to improve the appearance.

[0003]

However, the following drawbacks are considered in the light-up of the aluminum louver using the fluorescent lamp. (B) When a fluorescent lamp is used, it is dangerous because glass fragments are scattered when it is broken or dropped because it uses glass. (B) In the case of the fluorescent lamp method, the life is about 800 hours,
Maintenance work such as replacement of fluorescent lamp due to life is
Since each one is replaced, it becomes enormous. (C) In the case of the fluorescent method, the brightness and illuminance of the connecting portion 4 of the fluorescent lamp 2 are reduced as shown in FIG. (D) It is difficult for a fluorescent lamp to change the color only with white light. (E) Since the fluorescent lamp is located outside the louver, an inspection path for maintenance cannot be installed.

The object of the present invention is to facilitate maintenance,
It is an object of the present invention to provide a light-up device for an aluminum louver that does not cause a decrease in brightness that would occur at a connecting portion of a fluorescent lamp and can easily change a color.

[0005]

According to the present invention, the above object is achieved by the following aluminum louver light-up device. That is, a light of an aluminum louver including a plurality of aluminum louvers arranged side by side, a plurality of optical fiber cables provided with a light irradiation end facing a predetermined number of aluminum louvers, and a light source provided at the other end of the optical fiber cable. Up device.

[0006]

In the light-up device for the aluminum louver of the present invention, the aluminum louver is lighted up by the light beam guided by the optical fiber instead of the conventional fluorescent lamp. The optical fiber is a plastic fiber, has a semi-permanent durability, and is safe because it does not damage the glass unlike a fluorescent lamp. Further, the light source can be arranged at any place, the maintenance is easy, and the color can be easily changed by changing the color of the light source.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an aluminum louver light-up device according to the present invention will be described below with reference to the drawings. 1 to 3 show an apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes an aluminum louver, which is formed by bending an aluminum extruded shape member. The aluminum louvers 10 are fixed below the girders of the elevated expressway 12 and the bridge so that the concave curved surfaces face outward, and a large number of the aluminum louvers 10 are arranged side by side as shown in FIG.

A light irradiation end 14a of the optical fiber cable 14 is disposed outside the aluminum louver 10 at a distance from the aluminum louver 10, and the light emitted from the light irradiation end 14a irradiates the aluminum louver 10 so that the aluminum louver 10 is illuminated at night. It is supposed to light up. A design cover 16 is provided on the outside of the optical fiber cable 14 so as to cover the optical fiber cable 14 from the outside.

An optical fiber cable 14 is provided for each aluminum louver 10 or the aluminum louver 1
0 One is provided for each two. When the optical fiber cable 14 is provided for each aluminum louver 10, the pitch of the optical fiber cable 14 is the same as the pitch of the aluminum louver 10, and when one optical fiber cable 14 is provided for two aluminum louvers 10, the optical fiber cable 14 is provided. The pitch of 14 is twice the pitch of the aluminum louver 10.

The other end of the optical fiber cable 14 is guided to a place easily accessible by a maintenance and inspection worker, such as a bridge pier or the center of the span, and a light source 18 is provided there.
The light source filter 20 is replaceable, and the color of the light-up can be changed according to the season and landscape.

The irradiation distance 1 (the distance between the tip of the optical fiber cable and the aluminum louver measured by the axis of the irradiation light) is the width and pitch of the aluminum louver 10 and the optical fiber cable 1.
4 effective irradiation range. 4 to 6 show an example of a model test for determining the irradiation distance.
As shown in FIG. 4, the width of the aluminum louver 10 is 75 mm,
When the pitch is 150 mm, the width of the aluminum louver 10 is set within the irradiation circle (circle 22 in FIG. 4) of the optical fiber, and the necessary illuminance can be obtained on the surface of the aluminum louver when the irradiation distance is changed. For example, in FIG. 5, when the required illuminance is 250 lux, the irradiation distance is 200 to 300 mm. Therefore, in FIG. 1, the tip of the fiber cable 14 is installed at a distance of 1 from the aluminum louver 10.

The light irradiation end 14 of the optical fiber cable 14
The reference character a is supported by a support member 24 having a variable mounting angle, and the mounting angle can be easily changed by a worker from an inspection passage 26 provided inside the aluminum louver 10.

Optical fiber cables 14 arranged in parallel
The angle of the light irradiation end 14a can also be set so that the irradiation range of the aluminum louver 10 becomes a sine curve as shown in FIG.

Next, the operation will be described. The light from the light source 18 is guided to the light irradiation end 14a facing each aluminum louver 10 by each optical fiber cable 14, and is irradiated to each aluminum louver 10 from there, so that the aluminum louver 1
Write up 0.

Since each aluminum louver 10 is lighted up by each optical fiber under substantially the same conditions, the brightness and illuminance of the light up do not change along the longitudinal direction of the bridge or the like. Further, when it is desired to change the color of light, it is only necessary to change the light source filter 20, and a person can easily approach the installation location of the light source filter, so that the color can be easily changed.

[0016]

According to the present invention, the following effects are obtained. (B) Use of plastic optical fiber reduces the risk of dropping or damage. (B) Since the life of the optical fiber is long, all that is required is to replace the light source lamp itself, and it is possible to arrange the light source, the pier or the center of the span, and to provide a maintenance inspection passage inside the aluminum louver. Therefore, maintenance becomes easy. (C) The color of the light-up can be changed by exchanging the light source filter according to the season and landscape. (D) The light-up pattern can be changed by changing the irradiation angle and the distance.

[Brief description of drawings]

FIG. 1 is a front view of a light-up device for an aluminum louver according to an embodiment of the present invention.

2 is a side view of the device of FIG. 1. FIG.

FIG. 3 is an arrangement view of an optical fiber cable of the apparatus of FIG.

FIG. 4 is an irradiation pattern diagram of a model test for determining an irradiation distance.

FIG. 5 is a relationship diagram between irradiation distance and illuminance.

FIG. 6 is a layout view of an aluminum louver and an optical fiber cable for determining an irradiation distance.

FIG. 7 is a front view of a light-up device showing an example of an irradiation pattern.

FIG. 8 is a luminance change diagram in the case of a fluorescent lamp.

[Explanation of symbols]

 10 Aluminum louver 14 Optical fiber cable 16 Design cover 18 Light source

Continuation of the front page (72) Inventor Kira Yokota 9 Topy Kogyo Co., Ltd. 5-5 Yonbancho, Chiyoda-ku, Tokyo

Claims (1)

[Claims] 1. A plurality of aluminum louvers arranged in parallel, a plurality of optical fiber cables provided with a light irradiation end facing a predetermined number of aluminum louvers, and a light source provided at the other end of the optical fiber cable. Light-up device for aluminum louvers.