JPH0258722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a staircase equipped with a lighting fixture, and an object of the present invention is to provide a staircase that is efficiently and uniformly illuminated with a lighting fixture.

In general, multi-story buildings have stairs that connect the floors of each floor and landings in the middle, and are installed in a meandering pattern. Lighting equipment is installed on the ceiling. However, with conventional general lighting equipment, only the floors and landings directly below are illuminated, and the treads of the stairs are darkened, resulting in inconveniences such as people missing their step on the stairs when passing by.

In view of the above points, it is an object of the present invention to provide uniform brightness to each floor, landing, and stair tread.

The present invention will be explained below based on the drawings.

In general, the stairs in current buildings are as shown in Figure 1, where the ascending and descending stairs 1 and 2 are located on floors 3 and 4 of each floor.
They are provided in a continuous manner from the landing 5, and can be roughly divided into two types.One type, as shown in Figure 2, is a gentle staircase installed in a hotel, department store, etc., for example. Others are steep stairs installed in buildings such as general offices. The present invention is suitable for the former case, and as shown in Fig. 2, the height a of each step of the stairs is approximately 150 mm and the depth b of the tread is approximately 300 mm.
mm, the depth of landing 5 is approximately 2000 mm, and the depth of landing 5 is approximately 2000 mm.
A nine-step staircase is provided between them, and the heights between the floor 4 and the ceiling 6 and between the landing 5 and the ceiling 7 are approximately 3000 mm. Lighting fixtures 8, 8 are installed on the ceiling 7 in the center of the landing 5 and the ceiling 6 of each floor 4 corresponding thereto. At this time, the lighting fixtures 8, 8 are connected along the width direction of the stairs, and are provided so as to correspond to the ascending and descending stairs 1, 2, respectively. Now consider the stairs between landing 5 (referred to as the first landing) between the first and second floors, passing through the second floor and landing 9 (referred to as the second landing) between the second and third floors. This year, if 2
These will be referred to as the ascending staircase 1 and the descending staircase 2, respectively, based on the floor of the floor.

The lighting fixture 8 attached to the ceiling 6 on the second floor has the configuration shown in FIGS. 2 and 3, and includes an elongated bottom plate 10, a side plate 12 that surrounds the bottom plate 10, and is attached to the bottom plate 10.
An elongated reflective plate 13 attached to the open lower surface of the side plate 12
and a straight fluorescent lamp 14 covered with a reflector 13
and a stabilizer 11 located behind the reflector plate 13 and attached to the bottom plate 10. The reflecting plate 13 is curved to have a substantially parabolic cross section, and its axis 15 is inclined at an angle θ of about 30 degrees or 45 degrees with respect to the vertical direction, and is shielded from light in the horizontal direction. Thus, the lamp 14 is offset to one side with respect to the centerline of the fixture, and the ballast 1
1 is housed in a space behind the reflecting plate 13 on the opposite side, and other parts, wiring, etc. are provided in this part. Incidentally, the attachment to the ceiling 6 is performed on the center line of the appliance.

Two lighting fixtures 8, 8 are attached to the ceiling 6 of the second floor, connected in the width direction of the stairs, and the lighting fixture 8 corresponding to the ascending staircase 1 has a maximum luminous intensity direction θ1 relative to the vertical axis. The lighting fixture 8 corresponding to the downward stairs 2 has an inclination of about 45 degrees, and also has an inclination of θ2 of about 30 degrees.

The lighting fixtures 8 provided on the ceiling 7 of the first landing 5 also each have an inclination as described above.

In this way, the maximum luminous intensity angle corresponding to the ascending staircase 1 and having an inclination of approximately 45 degrees illuminates the center of the ascending staircase 1. On the other hand, corresponding to the descending stairs 2, approximately
The maximum luminous intensity angle with an inclination of 30 degrees will illuminate the center of the descending staircase 2. However, each staircase is illuminated above approximately the center by lighting fixtures with a 30-degree inclination for the upper floor or landing, and below approximately the center by lighting fixtures having a 45-degree inclination for the lower landing or staircase. The landing, floor, and stair treads are irradiated almost uniformly.

As described above, the present invention has the lighting equipment 8 installed on the ceiling of the stairs with the maximum luminous intensity direction θ and the mounting direction set, so that
The treads are evenly illuminated with little unevenness in illuminance, allowing for safe ascending and descending.Especially when the level of illumination is low, such as in an emergency, evacuation can be carried out quickly using these stairs.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a staircase to which the present invention is applied, and FIG. 2 is a schematic front view showing an embodiment of the present invention. 3 and 4 are an overall perspective view and a sectional view of a lighting fixture used in an embodiment of the present invention.

Claims (1)

[Claims] 1. In a stairway located in a multi-story building, which has a stairway with a landing in the middle, and where lighting equipment is installed on the ceiling of each floor and the ceiling of the landing, corresponding to the ascending stairs and the descending stairs, The lighting equipment has a reflector shape that blocks light in the horizontal direction, and the maximum luminous intensity direction is formed into a substantially parabolic cross section with an angle of 30 degrees and 45 degrees, respectively, and the maximum luminous intensity direction is directed toward the approximate center of each stairway toward the ceiling. Staircase with lighting fixtures installed.