JPH0349875B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lighting device for an elevator car, and more particularly to a lighting device for an elevator car that uses optical fibers to illuminate the inside of the car.

[Conventional technology]

Generally, lighting inside an elevator car is achieved by installing incandescent lamps or fluorescent screens between the ceiling board and a lighting board placed below it, and lighting the inside of the car with direct or indirect light. This is the current situation. The design effect of the lighting board is improved by changing the position, shape, etc. of lenses and louvers that cover the incandescent lamps and fluorescent lamps.

[Problem to be solved by the invention]

However, since the current lighting is only good enough to brighten the interior of the car, its design is rough and it is quite difficult to match it with the detailed designs of recent interiors of the car.

An object of the present invention is to obtain a lighting device for an elevator car that provides illumination with a high design quality and is easy to assemble and handle.

[Means to solve the problem]

In order to achieve the above object, the present invention forms a car room by a floor, a side wall, a ceiling plate, a lighting plate located below the ceiling plate, and an entrance/exit door formed in a part of the side wall for opening/closing an entrance/exit. In the lighting device for an elevator car in which the lighting board is equipped with a lighting fixture for lighting the car room, one end of a plurality of single optical fibers having a thickness of 0.1 to 2.0 mm is passed through and the ends are arranged in the same plane. a transparent protection plate fixed to the holding plate and covering the single optical fiber passing side; and a support provided on the back side of the holding plate for converging and supporting the plurality of single optical fibers. constitutes a light emitting body, and forms an opening in the lighting plate, and closes this opening with the light emitting body from the back side of the light plate with the transparent protective plate facing into the car compartment, and A light source is provided between the board and the lighting board near the rescue opening provided in the ceiling board, and the other ends of the focused single optical fibers are opposed to each other.

〔Example〕

Hereinafter, one embodiment of the lighting device according to the present invention will be described.
Figure 5 will be explained. First, the car room 1 is roughly divided into a floor 2, a side wall 3 standing from the edge of the floor 2, a ceiling plate 4 attached to the upper end of this side wall 3 and covering the upper part, and a ceiling plate 4 that extends from the ceiling plate 4. It is composed of a lighting plate 5 located at a low position and an entrance/exit door 6 formed in a part of the side wall 3 for opening and closing an entrance/exit. The lighting board 5 of this embodiment has a square planar shape, has a peripheral wall 5W at its periphery, and is attached to the ceiling board 4 by providing a flange at the upper end of the peripheral wall 5W,
A space A is formed between the ceiling plate 4 and the ceiling plate 4. Further, a rescue opening 7 for rescuing passengers in an emergency is formed in one corner of the illumination plate 4, and a cover 8 is normally closed. Further, a lighting fixture 9 is attached to the lighting board 5 including the cover 8 to illuminate the inside of the car room 1. On the other hand, a rescue opening 10, which is normally covered with a cover 11, is also formed in the ceiling plate 4 at a position facing the rescue opening 7.

Furthermore, the rescue opening 7 is located in the center of the illumination plate 5.
A hole 12 of a size that does not interfere with the light is formed, and this hole 12 is closed from the back side with a light emitting plate 13. The light emitting plate 13 is arranged in parallel with a holding plate 14 through which one end of a plurality of optical fibers 17S passes through and holding the ends in the same plane, covering the side of the holding plate 14 through which the single optical fiber passes. a transparent protection plate 18, a connector 19 that connects these two plates into an integral structure, and the plurality of single optical fibers 17.
It is constituted by a support 13H that collects and supports S on the back side of the holding plate 14, and is made into a unit. The holding plate 14 has a three-layer structure in which a synthetic resin plate 15M made of, for example, polyethylene resin is disposed at the center, and metal thin plates 15A and 15B made of aluminum thin plates are disposed on both sides. Incidentally, the retaining plate 14 has a plurality of holes 16 penetrating through the front and back so as to form a specific picture, pattern, or character, and the optical fiber single wire 17S is inserted into each of the holes 16 on the back side (on the thin metal plate 15A side). ) and protrude to the front side, and the protruding end is rounded to prevent it from being pulled out. Further, the hole 16 and one end of the protruding and rolled single optical fiber wire are bonded with adhesive B to prevent the inserted single optical fiber wire 17S from wobbling within the hole 16. In addition, each optical fiber single wire 17S
are made of acrylic resin, and can be of the same or different thickness depending on the purpose of use, and have a coating on the surface that prevents light leakage to improve light transmission. It has been subjected. According to experiments, the thickness of single optical fiber 17S is 0.1 to 2.0.
It was found that those in the mm range were excellent in workability and handling and did not pose any problems. That is, if the thickness is 0.1 mm or less, it becomes difficult to drill holes in the holding plate 14 and insert the optical fiber single wire 17S.
In this case, the rigidity of the single optical fiber 17S is large and the bending radius becomes large, making wiring work difficult and requiring a large space.

The surface of the thin metal plate 15B that is visible from the inside of the car compartment is painted in a black color so as to be inconspicuous. The protection plate 18 must of course be transparent and is formed from a transparent acrylic resin plate.

Each optical fiber single wire 1 has one end fixed to the holding plate 14 and is focused and supported by the support 13H.
7S is an optical fiber 17, the other end of which is connected to a light source device 20 attached to the inside of the ceiling plate 4. This light source device 20 is installed near the rescue exit 10.

On the other hand, as shown in FIGS. 4 and 5, a plurality of the single optical fibers 17S are combined into a collective optical fiber 17B, and the pieces are passed through the holding plate 14, thereby impairing the flexibility. It is possible to capture a large amount of light without any problems.

Next, the operation of the lighting device configured as above will be explained. First, the light source device 20 may be turned on and off in synchronization with the commercial operation and suspension of commercial operation of the elevator. As a result, the end of each optical fiber single wire 17S of the light emitting plate 13 lights up, so that the inside of the car 1 can be made to have a luxurious and quiet atmosphere even though it is minute, and the design effect inside the car 1 can be enhanced. be able to.

As explained above, the light emitting plate 13, the optical fiber 17 and the light source device 20 are connected to the ceiling plate 4 and the lighting plate 5.
Since the optical fiber 17 is housed in the space A between the light emitting plate 13 and the light source device 20, the length of the optical fiber 17 between the light emitting plate 13 and the light source device 20 can be shortened, and since the optical fiber 17 is not exposed outside the car compartment 1, The wiring work of the optical fiber is simplified, and the optical fiber 17 is not damaged even if a maintenance worker climbs on the ceiling plate 4 during maintenance inspection of the elevator.

Also, the thickness of each single optical fiber 17S is
Since it is set to 0.1 to 2.0 mm, wiring work and handling are facilitated, and damage to the single optical fiber 17S is also reduced.

Furthermore, since the light emitting plate 13 is made into a unit by the holding plate 14, the plurality of single optical fibers 17S, the protection plate 18, and the support 13H, it is easy to carry it into a narrow hoistway, and it can also be carried in a narrow space. The light emitting plate 13 can be easily assembled into the illumination plate 5 by simply fixing the light emitting plate 13 to the back side of the illumination plate 5. Moreover, since the light emitting plate 13 is made into a unit, the light emitting plate 13 can be easily assembled. Rescue exit 10 during maintenance inspection
This can be easily done by taking out the entire set from above and placing it on the ceiling board 4.

In addition, since the light source device 20 is installed near the rescue opening 10 on the ceiling plate 4, for example, when performing maintenance inspection such as replacing a lamp, it is necessary to open the cover 11 and extend your hand, or to do so between the lighting plate 5 and the ceiling plate 4. You can easily enter Space A and work there.

In this way, it has become possible to apply an optical fiber lighting device to an elevator car.

In addition, the hole 12 provided in the lighting board 5 may be used as a rescue exit; in such cases, the second
The light emitting plate 13 is inserted into the hole 12 as shown by the two-dot chain line in the figure.
Need to move from above. Even in such a case, since the optical fiber 17 has sufficient flexibility, it can be easily moved and the single optical fiber will not be damaged.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to obtain car lighting with a high design quality using optical fibers, and to obtain an elevator car lighting device that is easy to assemble, handle, and maintain.

[Brief explanation of drawings]

FIG. 1 is a three-dimensional view of an elevator car lighting system according to an embodiment of the present invention, looking at the entrance from the inside of the car, FIG. 2 is a sectional view taken along the line shown in FIG. 1, and FIG. FIG. 4 is an enlarged sectional view of the P section, FIG. 4 is a vertical sectional view showing the state in which the single optical fiber is used, and FIG. 5 is a sectional view taken along the line shown in FIG. 4. 1... Car room, 2... Floor, 3... Side wall, 4...
Ceiling board, 5... Lighting board, 6... Entrance/exit door, 12...
... Hole, 13... Light emitting plate, 14... Holding plate, 17...
...Optical fiber, 18...Protection plate, 20...Light source device.

Claims (1)

[Claims] 1. A car room is formed by a floor, a side wall, a ceiling plate, a lighting plate located below the ceiling plate, and an entrance/exit door formed in a part of the side wall for opening and closing an entrance/exit, and the lighting plate is provided with a light source for lighting the car room. In an elevator ceiling lighting system equipped with a lighting fixture of 0.1
a holding plate for penetrating one end of a plurality of single optical fibers of ~2.0 mm and holding the ends in the same plane; a transparent protection plate fixed to the holding plate and covering the side through which the single optical fibers pass; A light emitting body is constituted by a support provided on the back side of the holding plate to converge and hold the plurality of single optical fibers, and an opening is formed in the illumination plate, and the opening is filled with the transparent light by the light emitting body. A protection plate faces the inside of the car to cover the lighting board from the back side, and a light source is provided in the vicinity of the rescue opening provided in the ceiling board between the ceiling board and the lighting board, and the focused light is provided. A lighting device for an elevator car, characterized in that the other ends of the single fiber wire are opposed to each other.