JP2003252551A - Lighting system of elevator car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional lighting system of an elevator car that the structure is complicated because a lighting board is suspended from the ceiling by a double-structure consisting of a lighting board joint frame and a ceiling joint frame. <P>SOLUTION: The lighting system has a canopy 3 with a luminaire 4 fixed on the lower surface, the ceiling joint frames 5 extending downward from the canopy 3, and the lighting board 6 supported by the ceiling joint frames, and a groove 8 for inserting an end of the lighting board 6 is formed at the lower end of each ceiling joint frame 5. Accordingly, curving of the lighting board 6 by its own weight when used for a long period of time is prevented, and the lighting system is durable enough to prevent the lighting board 6 from falling from the ceiling joint frames 5. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator cab illuminating device for illuminating an elevator cab from the ceiling.

[0002]

2. Description of the Related Art Conventionally, as a technique in such a field,
The thing described in Unexamined-Japanese-Patent No. 2001-72357 is known. As shown in FIG. 8, the elevator cab lighting device according to the related art is provided with groove portions 22 and 23 in a pair of facing illumination plate joint frames 20 and 21, respectively, and the groove portions 22 and 23 are provided with acrylic resin. Lighting plate 24
Has been inserted. Further, L-shaped ceiling joint frames 25 and 26 are provided on both sides of the illumination plate joint frames 20 and 21.
21 is supported.

The spacing between the illumination plate joint frames 20 and 21 does not interfere with the bottom surfaces of the grooves 22 and 23 even if the illumination plate 24 expands, and even if the illumination plate 24 contracts.
It is set not to drop from 23. as a result,
The illumination plate 24 is not likely to bend even in a high temperature environment, and the illumination plate 24 is a concern in a low temperature environment.
It is possible to prevent a fall accident. As another conventional technique, Japanese Patent Laid-Open No. 63-33906,
JP-A-5-116872 and the like are known.

[0004]

However, in the conventional elevator cab lighting system, the ends of the illuminating plate 24 are inserted into and supported by the grooves 22 and 23 of the illuminating plate joint frames 20 and 21, so that the illumination is performed by its own weight. This is a problem because the center of the plate 24 is curved downward and the illumination plate 24 may fall off the grooves 22 and 23. Further, the illumination plate 24 is the illumination plate joint frame 2
Since it was suspended from the ceiling by the double structure of 0, 21 and ceiling joint frames 25, 26, the structure was complicated and the number of parts was large, which was a problem.

It is an object of the present invention to solve the above problems and provide an elevator cab illuminating device which can stably support an illuminating plate and has a simple structure.

[0006]

An elevator cab lighting system according to the present invention includes a canopy having lighting fixtures fixed to a lower surface thereof, a ceiling joint frame extending downwardly from the canopy, and a lighting plate supported by the ceiling joint frame. And a groove portion into which the end portion of the illumination plate is inserted is provided at the lower end of the ceiling joint frame.

Further, the ceiling joint frame is further provided at its lower end with a support portion which extends laterally from below the groove portion and whose tip extends upward to support the lower surface of the illumination plate. .

Further, the ceiling joint frame is further characterized in that a stopper is provided at the lower end of the ceiling joint frame, the stopper extending laterally from above the groove and extending downward so as to press the upper surface of the illumination plate.

Further, the present invention is characterized in that a spring member provided at the base end of the stopper is provided for urging the tip of the stopper downward.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the elevator cab lighting device according to the present invention will be described below with reference to the accompanying drawings. Embodiment 1. FIG. 1 is a vertical cross-sectional view showing an elevator cab in which the elevator cab lighting device according to the first embodiment is arranged. FIG. 2 is a plan view showing a state in which the elevator cab illuminating device according to the first exemplary embodiment is looked up from below. Furthermore, FIG. 3 is an enlarged partial cross-sectional view of the portion A of FIG.

From these figures, 1 is the floor of the car room, 2 is the wall of the car room, 3 is the canopy of the car room, 4 is a light source which is a light source arranged on the lower surface of the canopy 3, and 5 is from the canopy 3. The ceiling joint frame extending downward, 6 has its end supported by the ceiling joint frame 5,
A plurality of semi-transparent lighting plates that allow the light of the lighting fixture 4 to pass therethrough, 7 are provided on the ceiling joint frame 5, and a pair of projection pieces 8 arranged in parallel vertically are formed between the pair of projection pieces 7. The groove portion 9 is a support portion that supports the lower surface of the illumination plate 6.

As shown in FIG. 3, the illumination plate 6 is doubly supported by the groove portion 8 and the support portion 9 of the ceiling joint frame 5. That is, the ceiling joint frame 5 is provided with a pair of protrusion pieces 7 arranged in parallel in the vertical direction, and the groove portion 8 is formed between the protrusion pieces 7. The end of the illumination plate 6 is inserted and supported in the groove 8. Also, in the ceiling joint frame 5,
A support portion 9 is provided which extends laterally from below the groove portion 8 and whose tip extends upward. The lower surface of the illumination plate 6 is supported from below by the tip of the support portion 9.

When the groove 8 supports only the end of the illuminating plate 6 as in the conventional case, the center of the illuminating plate 6 is curved downward due to its own weight, and the illuminating plate 6 may fall off the ceiling joint frame 5. was there. However, in this embodiment, since the illumination plate 6 is doubly supported by the groove portion 8 and the support portion 9,
It is possible to reliably prevent the illumination plate 6 from bending. In particular,
Since the supporting portion 9 supports the illumination plate 6 so as to push it up from a position slightly closer to the center than the end portion,
The bending of the illumination plate 6 can be effectively prevented. As a result, it is possible to obtain an elevator cab illuminating device with excellent durability that prevents the illumination plate 6 from being bent due to its own weight even after long-term use and prevents the illumination plate 6 from falling off the ceiling joint frame 5. In addition, the groove portion 8 provided in the ceiling joint frame 5
Since the illuminating plate 6 is inserted in and the illuminating plate 6 is directly supported by the ceiling joint frame 5, the conventional illuminating plate joint frame becomes unnecessary. As a result, the structure for suspending the lighting plate 6 is simplified,
The number of parts can be significantly reduced.

Embodiment 2. Next, an elevator cab room lighting device according to the second embodiment will be described. FIG. 4 is a partial cross-sectional view showing the main parts of the elevator cab-room lighting device according to the second embodiment. The second embodiment is different from the first embodiment shown in FIG. 3 in that a ceiling joint frame 5 is provided with a stopper 10 for pressing the upper surface of the illumination plate 6.
Other configurations are the same as or equivalent to those in the first embodiment. In addition, the same reference numerals are given to the same or equivalent components as in the first embodiment, and the description thereof will be omitted.

As shown in FIG. 4, the stopper 10 extends laterally from above the groove portion 8 and has its tip extending downward to press the upper surface of the illumination plate 6. Also, stopper 1
At the base end of 0, a spring member 11 for urging the tip of the stopper 10 downward is provided. Therefore, even if the lighting plate 6 is pushed up due to mischief of an elevator user, the stopper 10 presses the lighting plate 6 and the lighting plate 6 is prevented from falling off the ceiling joint frame 5. It can be effectively prevented.

Further, as shown in FIGS. 5 (a) and 5 (b), instead of the illumination plate 6 having no frame, frames are provided on the four peripheral edges of the upper surface to enhance the strength of the plate and to improve the design by warping or bending. You may use the illumination plate 12 which prevented the deterioration of the property. The illumination plate 12 cannot be inserted into the groove portion 8 because of its thick frame, but the illumination plate 12 can be sandwiched and supported by the tip of the support portion 9 and the tip of the stopper 10. In particular, since the tip of the stopper 10 is biased downward by the spring member 11, the support portion 9 is adjusted in accordance with the thickness of the illumination plate 12.
The distance between the tip of the stopper and the tip of the stopper 10 can be arbitrarily changed. As a result, as shown in FIG. 6, both the lighting plate 6 without a frame and the lighting plate 12 with a frame can be supported by the ceiling joint frame 5, and an elevator cab lighting device having excellent versatility can be obtained. You can

Further, as shown in FIG. 7, the ceiling joint frame 5
The stopper 10 may be provided only in a part of the area. That is, since the illumination plate 6 without a frame is fitted into the groove portion 8, the illumination plate 6
Although it is not easy to attach / detach, since the illumination plate 12 with a frame is not fitted in the groove portion 8, it can be easily attached / detached only by opening the stopper 10. Further, since it is not necessary that all the illumination plates be attachable / detachable, it is possible to use the illumination plate 6 without a frame for many parts and use the illumination plate 12 with a frame only for a part that needs to be removed for maintenance or the like. Good. In this case, since the stopper 10 only needs to be provided on the ceiling joint frame 5 corresponding to the framed illumination plate 12, the framed illumination plate 1 is provided.
Reduction of points of 2 and stopper 10, and stopper 1
It is possible to reduce the number of installation steps of 0. As a result, the total cost for manufacturing the elevator cab lighting system can be reduced.

[0018]

Since the elevator cab lighting device according to the present invention is constructed as described above, the following effects can be obtained. That is, since the illumination plate is doubly supported by the groove and the support portion, it is possible to reliably prevent the illumination plate from bending. As a result, it is possible to obtain an elevator cab illuminating device having excellent durability that prevents the illumination plate from being bent due to its own weight even after long-term use and prevents the illumination plate from falling off the ceiling joint frame. Further, since the illumination plate is inserted into the groove provided in the ceiling joint frame and the ceiling joint frame directly supports the illumination plate, the conventional illumination plate joint frame is unnecessary. As a result, the structure for suspending the illumination plate is simplified, and the number of parts can be significantly reduced.

Further, since the ceiling joint frame is provided with a stopper, the stopper presses the upper surface of the illumination plate even when the illumination plate is pushed up due to mischief of the elevator user. It is possible to effectively prevent the lighting plate from falling off the ceiling joint frame. Further, since the stopper is provided with the spring member, the distance between the tip of the support portion and the tip of the stopper can be arbitrarily changed according to the thickness of the illumination plate. As a result, it becomes possible to support a plurality of illumination plates having different thicknesses by the ceiling joint frame.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an elevator car room in which an elevator car room lighting device according to a first embodiment is arranged.

FIG. 2 is a plan view showing a state in which the elevator cab lighting device according to the first embodiment is looked up from below.

FIG. 3 is an enlarged partial sectional view of a portion A in FIG.

FIG. 4 is a partial cross-sectional view showing a main part of an elevator cab illuminating device according to a second embodiment.

FIG. 5A is a perspective view showing an illumination plate without a frame.
Further, (b) is a perspective view showing an illumination plate with a frame.

FIG. 6 is a partial cross-sectional view showing the function of a stopper.

FIG. 7 is a partial cross-sectional view showing a state in which different types of illumination plates are supported.

FIG. 8 is a partial cross-sectional view showing a main part of an elevator cab room lighting device according to a conventional technique.

[Explanation of symbols]

1 ... Floor, 2 ... Wall, 3 ... Canopy, 4 ... Lighting fixture, 5 ... Ceiling joint frame, 6, 12 ... Illumination plate, 7 ... Projection piece, 8 ... Groove part, 9 ...
Support portion, 10 ... stopper, 11 ... spring member.

Claims (4)

[Claims] 1. A canopy having a lighting fixture fixed to a lower surface, a ceiling joint frame extending downward from the canopy, and an illumination plate supported by the ceiling joint frame, wherein a lower end of the ceiling joint frame is provided. An elevator cab room lighting device, characterized in that a groove for inserting an end of the lighting plate is provided. 2. The lower end of the ceiling joint frame is further provided with a support portion that extends laterally from below the groove portion and has a tip extending upward to support the lower surface of the illumination plate. The elevator cab lighting device according to claim 1. 3. A stopper is provided at a lower end of the ceiling joint frame, the stopper extending laterally from above the groove and extending downward to press the upper surface of the lighting plate. The elevator cab room lighting device according to claim 1 or 2. 4. The elevator cab lighting device according to claim 3, further comprising a spring member which is provided at a base end of the stopper and urges a tip end of the stopper downward.