JPH03297784A - Ceiling illuminating device for elevator - Google Patents

Abstract

PURPOSE:To prevent leakage of light of an illuminating lamp through an engaging part and to improve appearance by pressing the engaging part of a shield plate located at the lower part of an illuminating frame and assembled through engagement of a protrusion part and a recessed part, formed in the end parts of a plurality of plates, with each other by means of a resilient body. CONSTITUTION:A lower shield plate 12 is erected between first and second frame members 7 and 8 of an illuminating frame 6, and an upper shield frame 14 is erected between the frame members 8 and 9. The shield plates 12 and 14 are assembled in the shape of square frame by means of four translucent acryl sheets 13 and 14, and a protrusion parts 13a and a groove parts 13b formed in the respective tips are engaged with each other. The upper and lower engaging parts of the shield plates 12 and 14 are pressed by means of a resilient body 16. Thus, the engaging part is always brought into close contact with each other through the force of the resilient body 16 to prevent the generation of a gap between the engaging parts due to an assembly error and thermal expansion and contraction. Leakage of light from an illuminating lamp 5 in an illuminating frame 6 through the engaging parts of the acryl sheets 13 and 15 to the interior of a cage is prevented from production, and appearance is improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an elevator ceiling lighting device, and in particular, the installation of a shielding plate that blocks illumination light. A lighting system installed in a vehicle has a shielding plate attached to the lower part of the lighting frame that houses the lighting light to soften the illumination light and improve the interior of the room. This shielding plate is usually made of semi-transparent acrylic plate, etc., and the installation method is as follows:
There are techniques etc. published in Publication No. 76.

Fig. 5 is an external view showing the interior of a conventional elevator car, Fig. 6 is a vertical sectional view of main parts showing a conventional elevator ceiling lighting device, and Fig. 7 is a cross section taken along the line B-B in Fig. 6. It is a diagram.

In the figure, (1) is the elevator car, (2) is the ceiling of the elevator car (1), and (3) is the elevator car (
1) the wall, (4) the floor of the elevator car (1), (5)
is a lighting light arranged at the lower part of the ceiling (2). (
6) is the lower part of the ceiling (2)! The illumination frame 1 is made of a steel plate and is provided with the illumination lamp (5). (7) is a box-shaped first frame member in which a square opening (7a) is formed on the lower surface, and a flange (7b) bent inward is formed at the edge of the opening (7a). There is.

(8) is a substantially square plate-shaped second frame member provided on the top of the first frame member (7), and has a square opening (8a) in the center.
The opening (8) has an inwardly bent flange (8b) at its edge, and a stepped part (8b) at its outer edge.
C) is formed.

(9) is a third frame member provided at the second part of the second frame member (8), which is formed into a lid shape and has a flange (9) at the outer edge.
a) is provided. The lighting frame (6) is formed by these first frame member (7), second frame member (8), and third frame member (9).
) is configured.

(21) and (22) are respectively the first frame member (7)
and a lower shielding plate erected between the second frame member (8) and an upper shielding plate erected between the second frame member (8) and the third frame member (9), respectively. It is assembled into a rectangular frame shape by four translucent acrylic plates (23) and acrylic plates (24). The lower shielding plate (21) has almost the entire length and one side abuts the tip of the flange (7b) of the first frame member (7) and the stepped part (8c) of the second frame member (8),
On the other side, an L-shaped plate-shaped holding fitting (10) is in contact, and a flange (7) is attached by a fitting (11) consisting of bolts and nuts.
b), it is pressed and fixed to the stepped portion (8c) side.

Similarly, the two-part shielding plate (22) has almost its entire length, and one side is in contact with the tip of the flange (8b) of the second frame member (8) and the side of the third frame member (9), and the other side is in contact with the tip of the flange (8b) of the second frame member (8) and the side surface of the third frame member (9). Presser metal fittings (
10) is in contact with the flange (8) by the fixture (11).
b) It is pressed and fixed to the side surface of the third frame member (9). Note that the acrylic plates (23) and acrylic plates (24) constituting the lower shielding plate (21) and the upper shielding plate (22) have tip surfaces that are adjacent to each other. The illumination light (
5) Light is prevented from leaking through the gap.

Next, the operation of the conventional elevator ceiling lighting device configured as described above will be explained.

The light from the illumination lamp (5) housed inside the illumination frame (6) passes through the lower shielding plate (21) and the upper shielding plate (22) provided in the gap of the illumination frame (6) made of steel plate. to illuminate the interior of the elevator car (1). Note that these lower shielding plate (21) and upper shielding plate (22) are made of semi-transparent acrylic plates, so that they soften the illumination light and improve the external design. In addition, since the ends of the acrylic plates constituting the lower shielding plate (21) and the upper shielding plate (22) are brought into contact with each other in a plane, the light from the illumination lamp (5) is directed against each acrylic plate. This prevents leakage from the contact area.

[Problems to be Solved by the Invention] Since the conventional elevator ceiling lighting device is configured as described above, the lower shielding plate (21) and the upper shielding plate (
The acrylic plate (23) and the acrylic plate (24) constituting the illumination lamp (5
) Even if the light from the lamp (5) is prevented from leaking, the acrylic plate (23) and the acrylic plate (24)
expands and contracts, creating a gap in the contact area. In addition, gaps may also occur due to finishing accuracy and assembly errors of the acrylic plate (23) and the acrylic plate (24). For this reason, illumination light leaked out, spoiling the appearance. In particular, when each of the acrylic plates is blue or green, the color difference between the acrylic plates and illumination lights such as fluorescent lights and incandescent lights is large, so the leakage of light is even more noticeable.

Therefore, the present invention prevents the generation of gaps between the mutually abutting portions of the plurality of plates constituting the shielding plate due to expansion and contraction due to the heat of the illuminating lamps, thereby preventing the light from the illuminating lamps from leaking into the elevator car interior. It is an object of the present invention to provide a ceiling lighting device for an elevator that can be used as an elevator.

[Means for Solving the Problems] An elevator ceiling lighting device according to the present invention has ends of a plurality of plate materials near the bottom of a lighting frame that is attached to the lower surface of the ceiling of an elevator car and stores lighting lights inside. A shielding plate assembled by mutually engaging protrusions and grooves formed in the plate is provided, and an elastic body is provided on the shielding plate to elastically press the protrusions of the plate material against the grooves. .

[Function] In the present invention, even if there is expansion or contraction due to the heat of the illumination lamp, the protrusion at the engagement portion of the plate material of the shielding plate is always elastically pressed against the groove by the elastic body, so this engagement portion There will be no gaps.

Therefore, the light from the illumination lamp within the illumination frame does not leak from the engagement portion of the plate material of the shielding plate.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

FIG. 1 is a vertical cross-sectional view of a main part of an elevator ceiling lighting device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1, and FIG. 3 is an embodiment of the present invention. FIG. 7 is a plan view showing the engagement portion of the shielding plate before engagement according to the example. In the drawings, the same reference numerals as those in FIGS. 5 to 7 indicate parts that are the same as or correspond to conventional components, and therefore their explanation will be omitted here.

In the figure, (12) is the first frame member (7) of the illumination frame (6).
) and the second frame member (8), and is assembled into a rectangular frame shape using four translucent acrylic plates (13). (13a) is the acrylic plate (1
3) Triangular protrusion formed at the tip of (13b)
is a triangular groove formed on the side surface of the opposite end of this acrylic plate (13), and a pair of grooves are formed on each acrylic plate (13). The protrusion (13a) and the groove (13b) are designed to have the same shape in order to allow for the amount of expansion and contraction caused by heat so that the adjacent acrylic plates (13) can engage with each other. (14) is the second frame member (8) of the lighting frame (6)
and the third frame member (9).
Like the lower frame member (12), it is assembled into a rectangular frame shape using four translucent acrylic plates (15).

(15a) is a triangular protrusion formed at the tip of the acrylic plate (15), and (15b) is the acrylic plate (15).
5) A triangular groove formed on the side surface of the opposite end,
It has the same shape as the protrusion (15a) in consideration of the amount of expansion and contraction due to heat. The lower shielding plate (12) has a - side in contact with the tip of the flange (7b) of the first frame member (7) and a stepped part (8C) of the second frame member (8), and a second part on the opposite side. A rectangular prism-shaped elastic body (16) made of rubber is attached to the lower part along the entire length. Furthermore, this elastic body (16
) is pressed against the outside of the flange (7b) and stepped portion (8C) by a fixture (11) made of bolts and nuts to be fixed. Similarly, the - side of the upper shielding plate (14) is in contact with the tip of the flange (8b) of the second frame member (8) and the side surface of the third frame member (9), and the upper and lower sides of the opposite side are in contact with the tip of the flange (8b) of the second frame member (8) and the side surface of the third frame member (9). A rectangular prism-shaped elastic body (16) made of rubber is attached along the entire length.

Furthermore, a presser metal fitting (10) is brought into contact with the outside of this elastic body (16), and is pressed and fixed to the side surface of the flange (8b) and the third frame member (9) by the fitting (11).

That is, the lower shielding plate (12) and the two-part shielding plate (14)
) acrylic plate (13) and acrylic plate (15
) whose ends are always held closely together by elastic bodies (16).

Next, the operation of the elevator ceiling lighting device of this embodiment configured as described above will be explained.

The light from the illumination lamp (5) housed inside the illumination frame (6) passes through the lower shielding plate (12) and the upper shielding plate (14) provided in the gap of the illumination frame (6) made of steel plate. to illuminate the interior of the elevator car (1).

In addition, since the engaging parts of the protrusions and grooves of the acrylic plates (13) and acrylic plates (15) are always pressed by the elastic body (16) and in close contact with each other, finishing accuracy, assembly errors, or the heat of the lighting lamps may This prevents a gap from being generated between the protrusion and the groove due to expansion and contraction due to the expansion and contraction. Therefore, the light from the illumination lamp (5) in the illumination frame (6) is transmitted from each engaging part of the acrylic plate (13) and the acrylic plate (15) to the elevator car (
1) No leakage inside.

Incidentally, in the above embodiment, the protrusions and grooves of the acrylic plate (13) and the acrylic plate (15) are triangular in shape, but they may be shaped as shown in FIG. 4, for example.

FIG. 4 is a plan view showing the engagement portion of the shielding plate before engagement according to another embodiment of the present invention.

In the figure, (13c) is a protrusion with a trapezoidal cross section formed on the tip of the acrylic plate (13), and (13d) is a protrusion with a trapezoidal cross section formed on the end side of the adjacent acrylic plate (13). This is the groove.

These protrusions (13c) and grooves (13d) have the same shape in consideration of the amount of expansion and contraction caused by heat.

Further, the acrylic plate (15) also has protrusions (15c) and grooves (15d) of similar shape.

Since this embodiment differs from the previous embodiment only in the shapes of the protrusion (13C) and the groove (13d), it functions in the same manner as the previous embodiment.

It should be noted that the protrusions and grooves of each of the acrylic plates described above can also have other shapes.

As described above, the elevator ceiling lighting device of the above embodiment is installed near the bottom of the lighting frame (6) that is attached to the lower surface of the ceiling (2) of the elevator car (1) and houses the lighting light (5) inside. , an acrylic plate (13) as a plurality of plate materials and a protrusion (13a) formed at the end of the acrylic plate (15)
, protrusion (13C), protrusion (15a) and groove (13
b), the lower shielding plate (12) and the upper shielding plate (1) assembled by mutually engaging the groove (13d) and the groove (15b);
4), and an elastic body (16) for elastically pressing each projection into each groove.

Therefore, according to the above embodiment, the acrylic plate (13)
Even if the acrylic plate (15) expands and contracts due to the heat of the illumination lamp (5), the protrusions of each acrylic plate are elastically pressed against the grooves by the elastic body (16), so each protrusion There is no gap between the groove and the lighting frame (6).
The light from the illumination lamp (5) inside will not leak from the engaging portions of each of the acrylic plates. Therefore, it is possible to prevent the appearance 1 2 of the ceiling lighting device from deteriorating.

By the way, the illumination frame (6) of the above embodiment is the illumination light (5)
The shielding plate for softening the light is composed of two upper and lower stages: a lower shielding plate (12) and an upper shielding plate (14), but when implementing the present invention, the present invention is not limited to this. , the same can be applied to the case where there is only one stage, or when it is divided into three or more parts.

Further, although the lower shielding plate (12) and the upper shielding plate (14) in the above embodiment are both made of acrylic plates, when implementing the present invention, they are not limited to this. It can be similarly applied to cases where other plastic materials are used.

Furthermore, although rubber is used as the elastic body (16) in the above embodiment, the present invention is not limited to this, and it is also possible to press elastically with a spring or the like. It is.

[Effects of the Invention] As described above, the elevator ceiling lighting device of the present invention has the following effects:
A shielding plate assembled by mutually engaging protrusions and grooves formed at the ends of a plurality of plate materials is provided near the bottom of a lighting frame in which a lighting lamp is housed, and an engaging portion of the plate materials is provided. The shielding plate is provided with an elastic body that elastically presses the protrusion in the groove. Therefore, even if there is expansion or contraction due to the heat of the illumination lamp, the protrusion at the engagement part of the plate material of the shielding plate will always be elastically pressed against the groove by the elastic body, so there will be no gap in this engagement part. There is no. Therefore, the light from the illumination lamp within the illumination frame does not leak from the engaging portion of the plate material of the shielding plate, so that deterioration in the appearance of the ceiling illumination device can be prevented.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of an elevator ceiling lighting device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a plan view showing the engaging portion of the shielding plate before engagement according to another embodiment of the present invention;
Fig. 5 is an external view showing the interior of a conventional 34 elevator car, Fig. 6 is a vertical sectional view of the main part showing a conventional elevator ceiling lighting system, and Fig. 7 is a cross-sectional view taken along the line B-B in Fig. 6. FIG. In the figure, 1: Elevator car 2: Ceiling 5: Lighting light 6: Lighting frame 12: Lower shielding plate 14: Upper shielding plate 13.15 Near acrylic plates 13a, 13c, 15a, 15c: Projections 13b, 1
3d, 15b, 15d: Groove portion 16: Illumination light. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] A lighting frame that is attached to the lower surface of the ceiling of an elevator car and houses lighting lights therein; and protrusions and grooves that are provided at the bottom of the lighting frame and are formed at the ends of a plurality of plate materials. and an elastic body that is attached to the shield plate and elastically presses a protrusion in the engaging portion of the shield plate against the groove. ceiling lighting system for elevators.