JPH08113449A - Light emitting device on car platform of elevator - Google Patents

Abstract

PURPOSE: To provide a light emitting device on a car platform of an elevator which has a simple structure, facilitates the periodic maintenance and check work of a light source, and eliminates uncomfortable feeling due to heat generation of the light source. CONSTITUTION: A light emitting device at a car floor of an elevator is provided with a car platform plate 2 which constitutes a car of the elevator, a light transmitting plate 9 which constitutes a predetermined region of the platform face of the car platform plate 2, a light emitting body 8 built in the car platform plate 2 just under the light transmitting plate 9, a light source 50 provided in a rear section of the car platform plate 2, and a light transmission path 6 which transmits light emitted by the light source 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting device for a car floor of an elevator.

[0002]

2. Description of the Related Art Conventionally, as a light emitting device for a car floor of an elevator, there is, for example, a device disclosed in Japanese Utility Model Laid-Open No. 61-8676. FIG. 8 is a sectional view of a conventional elevator car floor. In the figure, a car floor plate 2 is provided on the floor side of a car floor frame 3 and forms a car floor 1. The car floor frame 3 is provided with a storage box 4 formed of a plate material and having a concave cross section. Inside the storage box 4, there is provided a light source storage portion 12 formed of a plate material and having a concave cross section. The light source storage unit 1 is placed in the storage box 4 in a state where both sides of the light source storage unit 12 are supported by the step portions 4a on both sides of the storage box 4.
2 is stored. A light source unit 5 such as a fluorescent lamp or an incandescent lamp is provided inside the light source storage unit 12. Further, the opening of the storage box 4 is closed by the translucent plate 9 supported on the stepped portion via both ends of the light source storage 12. The translucent plate 9 constitutes a part of the floor surface of the car.

In the conventional elevator car floor light emitting device configured as described above, the light emitted from the light source unit 5 is
The light passes through the transparent plate 9 and illuminates the feet of the occupant in the car.

[0004]

In the conventional elevator car floor lighting system, therefore, the car floor 1 is not only provided with the light source housing 12 for housing the light source 5, but also the car floor 1 is not regularly provided. It was necessary to design in consideration of the ease of maintenance and inspection work. Therefore, the structure of the car floor 1 had to be a complicated double structure, for example. Also,
Since the light source unit 5 is located immediately below the foot of the elevator occupant,
There is a problem that the passengers of the elevator are uncomfortable due to the heat generated by the light source unit 5.

The present invention has been made to solve the above problems and has an elevator having a simple structure, in which periodical maintenance and inspection work of the light source is easy, and uncomfortable feeling due to heat generation of the light source is eliminated. A light-emitting device for a car floor is provided.

[0006]

[Means for Solving the Problems] A car floor plate that constitutes an elevator car, a translucent plate that constitutes a predetermined region of the floor surface of the car floor plate, and a light-emitter built in the car floor plate immediately below the translucent plate. And a light source provided on the back surface of the car floor plate, and an optical transmission path for transmitting the light emitted from the light source.

The car is provided with a ventilation duct having an intake port provided along the moving direction of the car.

The convex surface of the light emitting plate may be exposed in the car and attached to the car floor plate.

The side surface of the light emitting body may be used as an inclined mounting surface such as a taper, and may be inserted and mounted on the car floor plate.

The light emitters may be installed at predetermined intervals at the ends of the optical transmission line.

The surface of the light emitter facing the light transmission path is formed in a concave shape that covers the tip of the light transmission path, and the tip of the light transmission path is provided inside the recess with a predetermined gap with respect to the light emitter. You may arrange it.

A control means for controlling lighting of the light source may be provided.

[0013]

According to the elevator car floor light-emitting device of the present invention, the light source is provided at a position separate from the light-emitting body provided under the car floor. Then, the light emitter emits light by receiving light from the light source through the optical transmission line. Therefore, maintenance and inspection of the light source becomes easy.

[0014]

【Example】

Example 1. FIG. 1 is a sectional view of a car floor of an elevator.
The same or corresponding parts as those of the conventional example shown in FIG. 8 are designated by the same reference numerals, and the description thereof will be omitted. A light source unit 50 is provided on the back side of the car floor frame 3 and fastened to the car floor frame 3 with bolts 10. The light source unit 50 has a light source lamp 5 inside.
a, a condenser lens 5b for condensing the light emitted from the light source lamp 5a. A cooling fan 5c for suppressing heat generation of the light source lamp 5a and cooling the light source lamp 5a is provided on the side of the light source lamp 5a facing the condenser lens 5b. The car floor frame 3 is provided with a storage section 4 for storing the light emitter 8 and the translucent body 9. The storage portion 4 is provided with a step portion 4a on its side surface. The end portion 8a of the light emitting body 8 is adapted to be locked to the step portion 4a. A light-transmitting plate 9 is provided on the light emitter 8
It is installed in close contact with. The translucent plate 9 constitutes a part of the floor surface of the car. Here, in order to guide the light from the light source unit 50 to the light emitter 8, the optical fiber cable 6 is interposed between the light source unit 50 and the light emitter 8. The optical fiber cable 6 is formed by bundling several optical fiber strands 6a. One end of the optical fiber cable 6 is attached to the light source unit 50 via the attachment portion 5d, and the condenser lens 5 is attached.
It is designed to receive light from b. The other end of the optical fiber cable 6 is attached to the storage portion 4 via the attachment portion 7. Several optical fiber wires 6a are branched on the side of the mounting member 7 of the mounting portion 7. The ends of the branched optical fiber strands 6 a are connected to the light emitter 8.

In the thus constructed elevator car floor light-emitting device, the light emitted from the lamp 5a of the light source section 50 is condensed by the condenser lens 5b and transmitted to the optical fiber cable strand 6a. Then, the light is guided from the light source unit 50 to the storage unit 4 via the optical fiber cable 6. The optical fiber cable 6 is branched into the optical fiber wires 6a inside the housing portion 4, and the end portions of the respective optical fiber wires 6a are connected to the light emitters 8.
The light-emitting body 8 emits light by the light guided by. As a result, the light of the light-emitting body 8 illuminates the inside of the car through the transparent plate 9. The lamp 5a generates heat, but is forcibly cooled by the cooling fan 5c.

According to this elevator car floor light emitting device, the light source unit 50 having the lamp 5a is attached to the outside of the car, for example, at another position apart from the car floor surface, and the car floor 1 is attached to the car floor 1. The housing 4 having the light emitter 8 is provided so that the light source unit 50 and the light emitter 8 are connected by the optical fiber cable 6. As a result, the structure of the car floor frame 3 can be made extremely simple. Further, since the cooling fan 5c is configured to forcibly cool the heat generation of the lamp 5a, heat generation by the light source unit 50 does not cause discomfort to the elevator occupants. Furthermore, the maintenance and inspection work of the lamp 5a of the light source unit 50 can be facilitated.

Example 2. FIG. 2 is a cross-sectional view of the elevator car floor. The same or corresponding portions as those of the conventional example shown in FIG. 8 and the embodiment shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. Two ventilation ducts 10a and 10b are provided below the car floor 3b of the elevator. One end sides of the exhaust ports of the two ventilation ducts 10a and 10b are both connected to the light source unit 50 so that the cooling air is guided to the lamp 5a inside the light source unit 50. Further, the other end sides of the intake ports of the two ventilation ducts 10a and 10b both project from the car floor frame 3 to the outside along the car floor 1 so that the cooling air is sucked from the side parts of the car. The upper ventilation duct 10a has its intake port arranged along the upward direction of the car, and the lower ventilation duct 10b has its intake port arranged along the downward direction of the car.

In the light-emitting device for the floor of the elevator car constructed as described above, as the car of the elevator is moved up and down, an air flow is generated along the upper side or the lower side of the exhaust port on the side surface of the car. That is, cooling air is taken in from the intake port of the upper ventilation duct 10a when moving the car upward, and from the intake port of the lower ventilation duct 10b when moving the car downward. This cooling air passes through the ventilation ducts 10a and 10b, and the light source unit 5
0 to cool the lamp 5a.

According to this light emitting device for the floor of the elevator car, it is possible to cool the light source section 50 by utilizing the natural ventilation generated by the elevation of the elevator. Therefore, a cooling fan is not required, an inexpensive elevator car floor light emitting device can be obtained, and a failure / noise countermeasure for the cooling fan 5c can be eliminated.

Example 3. FIG. 3 is a sectional view of the elevator car floor. The same or corresponding parts as those of the conventional example shown in FIG. 8 and the embodiment shown in FIGS. 1 and 2 are designated by the same reference numerals and the description thereof will be omitted. The car floor 1 is provided with a substantially conical concave taper hole 1b. The tapered hole 1b is fitted with a light-emitting body 8 having a substantially conical convex taper shape 8b fitted on the side, which is provided on the side. The lower surface of the light emitting body 8 facing the optical fiber cable 6 has a substantially spherical concave shape 8c. The tip of the optical fiber wire 6a is covered with a substantially spherical concave portion. The substantially spherical concave lower surface of the light emitting body 8 and the tip of the optical fiber element wire 6a are provided with a predetermined interval so that they are not directly connected to each other. The upper surface of the light-emitting body 8 has a substantially spherical convex shape and is directly exposed to the car floor 1 side without using a light-transmitting body. Further, the storage part 4 is fixed to the car floor plate 2 from the back side of the car floor plate 2 by a stud screw 2a that is welded to the car floor plate 2 and protrudes downward from the back side of the car floor 1. Fiber optic cable 6
Is fixed to the storage section 4 via the mounting section 7.
Here, the distance between the optical fiber element wire 6a and the concave portion 8c of the light emitting body 8 can be adjusted.

In the light emitting device for the elevator car floor constructed as described above, the light emitted from the light source section 50 passes through the optical fiber cable 6 from the end of the optical fiber wire 6a to the lower side surface of the light emitter 8. The light is projected onto the recess 8c. The light-emitting body 8 that receives this light emits light to illuminate the interior of the car.

According to the light-emitting device for the elevator car floor constructed as described above, the light-emitting body 8 is attached to the car floor 1 with the taper attachment surface formed. Therefore, the luminous body 8
Easily prevent gaps between basket floors,
It is possible to prevent dust and dirt from entering the storage member 4. Further, when the light emitter 8 needs to be replaced, the light emitter 8 can be easily replaced from above the car floor 1. Further, since a gap is provided between the optical fiber element wire 6a and the concave portion 8c of the light emitting body 8, the work of attaching and detaching the light emitting body 8 becomes easy. further,
Since the concave portion 8c on the lower surface of the light emitter 8 covers the tip of the optical fiber strand 6a, light leakage can be prevented and the light transmission efficiency can be improved. Further, even if water drops, dust, dust, etc. enter from the floor of the car through the gap of the mounting portion of the light-emitting body 8 to the floor of the car, the optical fiber cable bare wire 6a.
It is possible to prevent the tip portion of the from being contaminated and to prevent the reduction of the light projection rate.

Embodiment 4 FIG. 4 is a plan view of the elevator car floor, and FIG. 5 is a cross-sectional view of the elevator car floor. Figure 6
FIG. 4 is an explanatory diagram showing a numeral pattern composed of light-emitting bodies that display a stop floor provided with a car floor of an elevator. The same or corresponding parts as those of the conventional example shown in FIG. 8 and the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted. A light-shielding plate 10 and a light-transmitting plate 9 for individually separating and shielding the light-emitting elements 8b are provided inside the housing portion 4, and the light-transmitting plate 9 constitutes a part of the floor of the car. The storage portion 4 is provided with a step portion 4a on its side surface, and the end portion 10a of the light shielding plate 10 is locked to the step portion. A light transmitting plate 9 is provided directly above the light shielding plate 10 so as to be in close contact with the light shielding plate 10. The light emitting element 8b is fitted into each of the small holes provided in the light shielding plate 10, and the patterns 11a and 11 capable of displaying a two-digit number indicating the elevator stop floor on the floor of the car.
b is formed. The pattern 11a displays the tens digit and the pattern 11b displays the ones digit. The number of the stop floor is displayed depending on the presence or absence of light emission of the light emitting element that constitutes each display group. In order to display numbers, the luminous element groups that form one digit of the formed pattern are grouped into three luminous element groups to form one group, and each group includes eight groups 11a.
It is divided into -1 to 8 and 11b-1 to 8. The number display is performed by causing any one of the luminous element groups to emit light, or by not causing any of the luminous element groups to emit light. For example,
As shown in FIG. 6, if it is "1", it means the group 11a-2.
And 11a-3 emit light, and if it is "2", groups 11a-4, 11a-3, 11a-7, 11a-6 and 1
1a-1 is made to emit light, and if it is "3", it is group 1
1a-4 and 11a-3 and 11a-7 and 11a-2 and 11
Light a-1.

Light source units 51a and 51b are provided on the outside of the lower surface of the car floor frame 3 in order to cause the luminous element groups to emit light. Of the light source units 51a and 51b, the light source unit 51
“A” emits light for displaying the tens digit and the light source unit 51b emits light for displaying the digit of the ones digit. The inside of the light source parts 51a and 51b corresponds to the division of 8 groups of each display digit of the light emitting element,
Small light sources 51a-1 to 8 each consisting of eight lamps,
51b-1 to 51b-1 and one light source is assigned to each group. And the light source unit 5
The controller 14 determines whether or not the small light sources, which are divided into eight, 1a and 51b, are turned on.

Each light emitting element and the light source parts 51a and 51b are connected to each other by using an optical fiber wire 6a. In order to guide the light from the light source units 51a and 51b to the patterns 11a and 11b, eight optical fiber strands 6 are provided corresponding to eight divisions of each display digit of the light source units 51a and 51b and the luminous element group.
Optical fiber cables 61a, 61 configured by bundling a
b is provided. Optical fiber cables 61a, 6
One end of 1b is attached to the light source unit 51 by the attachment units 6b and 6c.
It is attached to a and 51b so as to receive light from the light source parts 51a and 51b. The other ends of the optical fiber cables 61a and 61b are attached to the storage unit 4 by the attachment unit 7.
And is branched into several optical fiber strands 6a. Each optical fiber strand 6a is connected to each luminous element group which shows a numerical pattern.

In the thus constructed elevator car floor light emitting device, the controller 14 emits light based on the stop floor information sent from the elevator operation control device indicating the stop floor. In order to display the number pattern formed on the floor of the car by 8b, the two light source units 5
Lighting control of 1a and 51b is performed. As a result of the lighting control by the controller 14, the light emitted from the light source units 51a and 51b is transmitted to the ends of the optical fiber strands 6a, and the respective optical fiber strands 6a are bundled into one optical fiber cable 61a, Light is guided from the light source units 51a and 51b to the storage unit 4 via the optical fiber cable 6 formed of 61b. Further, the light is transmitted through the respective optical fiber strands 6a branched at one end of the optical fiber cable 6 to the light emitting element 8b connected to the respective end portions of the respective optical fiber strands 6a and guided from the respective optical fiber strands 6a. Each light emitting element group emits light based on the emitted light to display a numerical pattern indicating a stop floor.

According to the light-emitting device for the elevator car floor constructed as described above, the controller 14 controls the lighting state of the small light source and displays the stop floor, so that the car floor is notified to the passengers. Can be effectively utilized as a means of.

Further, in the fourth embodiment, the stop floor is displayed, but for example, as shown in FIG.
b is fitted into a large number of small holes densely provided on the entire floor of the car, and the light source is composed of a video display term 15,
The controller 14 may control the lighting of each light source of the video display term 15 by connecting the two with a large number of optical fiber wires 6a to display characters, figures, and the like.

As the light source units 5a and 5b, light emitting diodes may be used instead of the lamps for each light emitting element group.

[0030]

According to the light emitting device for the car floor of the elevator according to the present invention, the structure of the car floor frame can be simplified. In addition, the heat generated by the light source does not make the occupant of the elevator uncomfortable. Further, the maintenance work of the lamp of the light source becomes easy.

Further, it becomes possible to cool the light source by utilizing the natural ventilation generated by raising and lowering the elevator, so that it is possible to provide the inexpensive light emitting device for the elevator car floor which has few failures.

Further, it is possible to prevent water droplets, dust, dust and the like from entering the storage section. Further, the replacement work of the light emitter becomes easy.

Further, the work of attaching the light emitter becomes easy.

Further, it is possible to prevent light leakage from the tip of the optical transmission line and improve the light transmission efficiency. In addition, even if water drops, dust, dust, etc. enter from the floor of the car through the gap of the mounting part of the light emitter later, it will prevent the tip part of the optical transmission line from being contaminated and prevent the reduction of the light projection rate. You can

Further, the car floor can be utilized as a means for notifying passengers of information.

[Brief description of drawings]

FIG. 1 is a sectional view of a light emitting device for a car floor of an elevator according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a light emitting device for a car floor of an elevator according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a car floor light emitting device of an elevator according to a third embodiment of the present invention.

FIG. 4 is a plan view of a light emitting device for an elevator car floor according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view of a car floor light emitting device of an elevator according to a fourth embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a numeral pattern provided on the car floor of the elevator according to the fourth embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a configuration for displaying characters, figures, and the like.

FIG. 8 is an explanatory diagram showing a conventional light emitting device on a car floor of an elevator.

[Explanation of symbols]

 3 ... Basket floor frame 4 ... Storage section 6 ... Optical fiber cable 8 ... Light emitting body 9 ... Translucent plate 10 ... Ventilation duct 14 ... Controller 50 ... Light source section

Claims (7)

[Claims] 1. A car floor plate constituting a car of an elevator,
A light-transmitting plate that constitutes a predetermined region of the floor surface of the car floor plate, a light-emitter built in the car floor plate immediately below the light-transmitting plate, a light source provided on the back surface of the car floor plate, and A light emitting device for a car floor of an elevator, comprising: a light transmission path for transmitting light emitted from a light source. 2. A light emitting device for a car floor of an elevator according to claim 1, wherein the car is provided with a ventilation duct having an intake port provided along a moving direction of the car. 3. The light emitting device for the car floor of an elevator according to claim 1, wherein the light emitting device is mounted on the car floor plate so that the convex surface of the light emitter is exposed in the car. 4. A side portion of the luminous body is an inclined mounting surface,
The light emitting device for the car floor of an elevator according to claim 1, wherein the light emitting device is inserted and attached to a car floor plate. 5. The light emitting device for an elevator car floor according to claim 1, wherein the light emitters are installed such that the ends of the optical transmission line are provided at a predetermined interval. 6. The surface of the light emitter facing the light transmission path is formed in a concave shape that covers the tip of the light transmission path, and the tip of the light transmission path is located inside the recess with respect to the light emitter. The light-emitting device for the elevator car floor according to claim 1, wherein the light-emitting device is provided with a predetermined gap. 7. A light emitting device for an elevator car floor according to claim 1, further comprising control means for controlling lighting of the light source.