JP2001335263A - Lighting system for elevator car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable work to be safely conducted in maintenance and inspection of a luminaire, and improve efficiency of workability. SOLUTION: A frame 6 for preventing position deflection is installed around a square illumination plate 4 provided on a ceiling part of an elevator having a specified distance from it. Stoppers 7 for preventing jumping are extended above the illumination plate 4 and the frame 6 at diagonal corners of the respective sides of the frame 6 to be apart from them, having upper edge parts bent toward the center of the illumination plate 4. The illumination plate 4 is rotatable in a specified direction as it is positioned below upper edge parts of the stoppers 7, and above the frame 6, so the illumination plate 4 is released from the upper edge parts of the stoppers 7 when it is rotated for a specified quantity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lighting system for an elevator car.

[0002]

2. Description of the Related Art In a lighting device provided on the ceiling of an elevator car which can be used by an unspecified number of people and often becomes a closed room, a lighting plate arranged on the lower surface of a lighting box is provided with mischief such as pushing up. A stopper may be provided to prevent a falling accident or damage to the lighting equipment. In addition, the lighting plate is often used as an inspection port due to its structure.
In the lighting devices described in JP-A-3-33906 and JP-A-5-116872, a leaf spring type stopper is used to hold the lighting plate detachably from the car. At the time of maintenance and inspection, the maintenance person
No. 33906) or FIG. 11 (Japanese Patent Laid-Open No. 5-1168).
No. 72), the lighting plate is lifted up, and the device is operated so that the lighting plate comes off the stopper to bend the leaf spring, and the lighting plate comes off the stopper and gets over the stopper. Then, the lighting plate is held in an inclined state and taken out from the frame.

[0003]

However, in such a conventional lighting device, a maintenance person operates the device with one hand to bend the leaf spring to remove the lighting plate from the stopper, and at the same time to flex the other spring. Since the lighting plate must be lifted by hand, there is a problem that the maintenance and inspection work is unstable and the workability is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to improve the efficiency of operability by performing a stable operation at the time of maintenance and inspection of a lighting fixture.

[0005]

A lighting system for an elevator car according to the present invention comprises a polygonal lighting plate provided on a ceiling portion of an elevator, and a predetermined gap provided around an outer periphery of the lighting plate. A frame for preventing misalignment and provided at diagonal corners of each side of the frame, extending away from the lighting plate and above the frame, and having an upper edge near the center of the lighting plate. A bent stopper for preventing the bent plate from rising, wherein the lighting plate is rotatable in a certain direction in a state where the lighting plate is positioned below the upper edge of the stopper and above the frame. Is configured to be released from the upper edge of the stopper when rotated by a predetermined amount.

Further, the lighting device for an elevator car according to the present invention has a structure in which a stopper can be adjusted up and down.

Further, in the lighting device for an elevator car according to the present invention, the shape of the upper edge portion of the stopper is adapted to a lighting plate such as a chamfer, a triangle or a trapezoid.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Embodiment 1 of an elevator car lighting device according to the present invention is shown in FIGS.
This will be described with reference to FIG. 1 is a longitudinal sectional view schematically showing a car ceiling device, FIGS. 2 and 4 are plan views inside a lighting box, and FIGS. 3 and 5 are sectional views inside a lighting box. In FIG. 1, 1 is a basket,
2 is a ceiling, 3 is a lighting box, 4 is a lighting plate, and 5 is a lighting fixture. In FIG. 2, reference numeral 6 denotes a frame provided around the lighting plate 4, and 7 denotes a lighting plate stopper.

As shown in FIGS. 2 and 3, the lighting plate stoppers 7 are attached to the four corners on the diagonal sides of each side forming the frame 6 provided around the lighting plate 4, and have sufficient strength. Therefore, merely pushing up one side or both sides of the lighting plate 4 is prevented by the lighting plate stopper 7 and does not fall off and damage the lighting fixture 5.

Next, a procedure for removing the lighting plate 4 during maintenance and inspection work according to the present invention will be described with reference to FIGS. First, the maintenance person lifts the lighting plate 4 to a position close to the lower surface of the upper end of the lighting plate stopper 7 as shown in FIG. 5, and utilizes the gap between the frame 6 and the lighting plate stopper 7 as shown in FIG. The illuminating plate 4 can be horizontally rotated in one direction with the center of the illuminating plate 4 as an axis, and the illuminating plate 4 can be released from the illuminating plate stopper 7 and further lifted upward. Then, it can be extracted into the cab 1. For mounting method,
This is the reverse procedure. At this time, a protective member may be attached to the end surfaces of the frame 6 and the lighting plate stopper 7 so as not to damage the lighting plate 4.

According to the above configuration, when releasing the lighting plate stopper 7, the lighting plate can be lifted up with both hands instead of one hand and the lighting plate can be removed by a series of operations, so that the maintenance and inspection work of the lighting fixture is safe and efficient. Can be implemented.
Further, since it is not necessary to use a member requiring processing such as a leaf spring, it can be configured at a low cost.

Embodiment 2 FIG. Second Embodiment A car lighting device according to a second embodiment of the present invention will be described. As shown in FIG. 6, the lighting plate stopper 7 of the first embodiment is a lighting plate stopper 7a that can be adjusted up and down. Lighting plate stopper 7
The fixing method after adjusting the height up and down is based on a known technique. For example, the illumination plate stopper 7a is provided with a through-hole having a thread groove formed therein, and the end of the frame 6 is provided with a through-hole having the same screw groove formed therein. And screw it down. However, the length of this screw is set so as not to protrude much inside 6.

As described above, by making the lighting plate stopper adjustable up and down, there is an effect that it is possible to flexibly cope with lighting plates having different thicknesses.

Embodiment 3 Next, Embodiment 3 of the elevator car lighting device according to the present invention will be described.
7 to 9 are plan views of the lighting box, focusing on the lighting plate stopper and the frame. As shown in the drawing, the lighting plate 4 is released from the stopper by making the shape of the upper surface of the lighting plate stopper 7 into the shape of the lighting plate stoppers 7b to 7d according to the lighting plate such as a chamfer, a triangle, and a trapezoid. In this case, the rotation angle can be made smaller than in the first embodiment, and the lighting box 3
Is small, so that there is an effect that it can be configured in a space-saving manner and at low cost.

Although the above embodiment has been described on the premise that a rectangular illumination plate is used, a polygonal illumination plate such as a hexagon or an octagon may be used as long as the above conditions can be satisfied.

[0016]

According to the present invention, when releasing the lighting plate stopper, the lighting plate can be removed by a series of operations while supporting the lighting plate with both hands instead of one hand.
Inspection work can be performed safely and efficiently. Further, since it is not necessary to use a member requiring processing such as a leaf spring, there is an effect that it can be configured at a low cost.

Further, since the illumination plate stopper can be adjusted up and down, there is an effect that it is possible to flexibly cope with illumination plates having different thicknesses.

The shape of the upper surface of the lighting plate stopper 7 is
By using a lighting plate stopper that is shaped to match the lighting plate, such as a chamfer, triangle, or trapezoid, the rotation angle when releasing the lighting plate from the stopper can be reduced, and the size of the lighting box can be reduced, saving space. Thus, there is an effect that it can be configured at low cost.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view schematically showing a car ceiling device.

FIG. 2 is a plan view of a lighting box.

FIG. 3 is a sectional view of a lighting box.

FIG. 4 is a plan view in a lighting box.

FIG. 5 is a cross-sectional view of the inside of the lighting box.

FIG. 6 is a view showing a lighting plate stopper that can be adjusted up and down.

FIG. 7 is a plan view of a lighting box.

FIG. 8 is a plan view of a lighting box.

FIG. 9 is a plan view of a lighting box.

FIG. 10 is a diagram illustrating a state of removing a conventional lighting plate.

FIG. 11 is another diagram illustrating a state of detaching a conventional lighting plate.

[Explanation of symbols]

1 cab, 2 ceilings, 3 lighting boxes, 4 lighting boards, 5 lighting fixtures, 6 frames, 7 lighting board stoppers.

Claims (3)

[Claims] 1. A polygonal illuminating plate provided on a ceiling of an elevator, a frame for preventing misalignment installed at a predetermined gap around an outer periphery of the illuminating plate, and a pair of each side of the frame. A stopper provided at a corner on the corner side, extending above the illumination plate and the frame, and having a top edge bent toward the center of the illumination plate for preventing jumping. The plate is located below the upper edge of the stopper and is rotatable in a certain direction while being located above the frame, and when the lighting plate is rotated by a predetermined amount, the upper edge of the stopper is moved from the upper edge of the stopper. A lighting device for an elevator car, wherein the lighting device is configured to be released. 2. The lighting device of an elevator car according to claim 1, wherein the stopper is configured to be adjustable up and down. 3. The lighting device for an elevator car according to claim 1, wherein the shape of the upper edge of the stopper is adapted to a lighting plate such as a chamfer, a triangle or a trapezoid.