JPS58100302A - Lighting apparatus for tunnel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to the modification of lighting equipment for tunnels.

Previously, JNR O Long Tunnel Kt1, based on JNR standards, for general illumination, in the case of double track, 40 watt fluorescent light fixtures were installed on both sides at 15 m intervals at 2.5 m height traps. The illuminance exceeds its looks.

However, the above-mentioned structure in which fluorescent lamps are arranged at intervals of 15 meters inside the tunnel has the disadvantage that a large amount of power is consumed overall due to the large number of lights in the multiple lamps.

Therefore, it is an object of the present invention to provide a lighting fixture for a tunnel that can secure the jll& determined by the Japanese National Railways standards, reduce the number of lighting fixtures to less than half, and further reduce the overall power consumption. purpose.

The present invention will be explained below with reference to FIGS. 1 to 5.

In Figure 1, there is a socket 2 for attaching a light source inside the IFi.
A lighting fixture body comprising: a housing-shaped translucent globe provided below the lighting fixture body 1; 4 is a socket 2;
A light source attached to the lamp, for example, a 70 watt high-pressure sodium lamp, a ceiling reflector slanted upward at both ends around the light source 4 as shown in FIG. 2, and a reflector 5 as shown in FIG.
As shown in FIG. 2, a plurality of bent portions 6.7t may be provided upwardly around the light source 4. For example, the bent portion 6 is configured to have an angle of 22 degrees, and the bent portion 7 is configured to have an angle of approximately 12 degrees.

8Fi is a side reflection plate which has bending parts 9 and 10 facing inward at the inner tip and is bent in a V-shape toward the center of the light source, and the upper part is bent at an angle of, for example, 5 degrees from the previous time on the back of the light source 4. from 10
It is arranged at an angle of about 100 degrees. Further, the bent portions 9 and 10 at both ends of the same-side reflective mirror 8 are configured in a triangular shape with one side facing downward and upward, as shown in FIG. Furthermore, the bending angle 11 of the bending portion 9°lO is, for example, 137Wj
Configure to Lm degree.

Next, an example of a lighting fixture having the above structure will be described. For example, the lighting fixtures having the above-mentioned structure are arranged at both ends of the tunnel at intervals of 40 meters, with a tunnel width of 9 meters and an installation height of 2.5 meters.

According to this lighting fixture, the light reflected from the ceiling reflector 5 mainly illuminates the direction in which the train is running, and the light reflected from the side panels 8 broadly illuminates the direction in which the train is running and the front of the lighting fixture. In this case, since the bending portions 9° and 10 are slightly bent inward, the light beam can be effectively irradiated to a necessary location within the tunnel.

In addition, the area within the tunnel where the upper side of the side reflector 8 is slightly upwardly inclined forward can be effectively illuminated.

As described above, the present invention includes a ceiling reflector that is inclined upwardly with the light source at the center on the inner surface of the globe that is attached to the lower surface of the lighting equipment body, and further has bent portions that extend inwardly at the tips of both sides. The structure has a side reflector bent in a V-shape toward the center of the light source, and is arranged on the equipment mounting side with the upper side tilted to the front. A lighting range can be effectively illuminated.

In addition, to obtain the same illuminance as the conventional structure, the interval between additional lighting fixtures can be increased, which has the advantage of reducing the number of lighting fixtures and power consumption by half or less, and the lighting fixtures in tunnels It is very useful as a.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of the lighting fixture according to the present invention, FIG. 2 is an embodiment of the ceiling reflector in FIG. 1, and FIG. 3 is another embodiment of the ceiling reflector in FIG. FIG. 4 is a plan view of the side reflector according to the present invention, and FIG. 5 is a side view showing the inclination of the side reflector. l...Lighting equipment body 3...Housing-shaped globe 4...Discharge lamp 5...
・Ceiling reflector 8...Side reflector 1 figure, 2 figures, 4 figures

Claims (1)

[Claims] 1. A light-transmitting globe (3) in the form of a casing on the lower surface of the lighting fixture main body (1) having a socket for attaching a jt source (2).
In addition to providing a light source (4) attached to the same socket (2)
At the center of the tube, a ceiling reflector (5) is provided downwardly of the lighting fixture body (1) with both ends inclined upward in the longitudinal direction, and furthermore, a bent part (9) extending inward at the tips of both ends, (The side reflector has a V-shape K11ll bent toward the light source.
) &- A lighting fixture for a tunnel, characterized in that it is disposed on the fixture mounting surface side with the upper part inclined toward the light source side. 2, the ceiling reflector plate (5
) is a lighting fixture for a tunnel, characterized in that the light source (4) is constructed by providing bent portions at a plurality of locations upward at the center of the tube. 3.4! A lighting fixture for a tunnel, characterized in that the ceiling reflector (5) according to claim 1 is constructed such that the light source (4) is inclined in one plane upwardly from the center. 4. The bent portions (91, Q) on both sides of the side reflector (8) as described in Claim 1 are inwardly configured in a triangular shape with one side facing downward and facing upward. 5. The side reflector (8) according to claim 1 is arranged to be inclined forward at an angle of 5 to 10[degrees] toward the upper tube light source. Light WA equipment for tunnels.