JP2004189478A - Escalator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce installation space of a luminaire and decrease load of maintenance inspection work. <P>SOLUTION: A luminaire 12 is placed on an armoring plate 9 or 10 for lighting the outside of the exterior plate 9 or 10 mounted on the outside of a main frame 4 supporting a footstep 5 running circularly. This luminaire 12 uses, as a light source, a cold-cathode tube 11 having characteristics of being thin with a tube diameter of 4 mm or so for example and having a long service life that is fitted into the plate 9 or 10. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an escalator provided with a lighting fixture.
[0002]
[Prior art]
In the escalator, a large number of steps connected endlessly are guided by guide rails provided between the upper and lower floors and circulate, and the passengers on the steps move. ing.
[0003]
A guide rail for guiding and supporting the steps is provided in the main frame. On the main frame, a pair of balustrades are erected on both sides in the width direction of the steps, and the pair of balustrades are respectively provided at the same speed and in the same direction as the steps. A handrail belt is provided for moving. These steps and handrail belts are driven by a driving device arranged in the main frame, and the driving device is controlled by a control device.
[0004]
[Problems to be solved by the invention]
By the way, conventionally, an escalator has an exterior plate attached to the outside of a main frame that supports a step that circulates and travels. A lighting device for illuminating the outside is attached to the exterior plate, and the lighting device is generally configured of a fluorescent lamp and arranged between the main frame and the exterior plate.
[0005]
However, in such a configuration, the space between the main frame and the exterior plate is narrow, and it is necessary to secure a large space between the main frame and the exterior plate in order to install a lighting fixture therebetween.
[0006]
In addition, fluorescent lamps need to be cleaned and replaced regularly, and maintenance work must be performed by installing a stepladder or ladder on the lower escalator steps. It was.
[0007]
The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide an escalator capable of reducing the installation space for a lighting fixture and reducing the burden of maintenance work.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a lighting device using a cold cathode tube as a light source, which illuminates the outside of the exterior plate, on an exterior plate attached to the outside of a main frame that supports the steps that circulate. It is characterized by having been established. The cold cathode tube has a phosphor layer on the inner wall of a transparent envelope such as a glass tube, discharges gas in the tube, and excites and emits the phosphor layer with the generated ultraviolet light. Place a cold cathode.
[0009]
With such a configuration, for example, a lighting device can be installed without securing a large space between the main frame and the exterior plate by utilizing the characteristics of the cold cathode tube, which has a thin tube diameter of about 4 mm and a long life. And the maintenance work is hardly required until the life of the escalator.
[0010]
In this case, the lighting fixture can be disposed on an exterior plate provided on the bottom of the main frame, or on an exterior plate provided on a side portion of the main frame.
[0011]
In addition, by arranging the lighting fixture outside the exterior plate provided at the bottom of the main frame, it can be retrofitted to an existing escalator.
[0012]
Further, at least a part of the exterior plate is constituted by a display plate through which light can be transmitted and a notification display is given, and a lighting device using a cold-cathode tube as a light source is arranged inside the display plate to thereby notify the lighting device. Can be used for advertising.
[0013]
Also, at least a part of the exterior plate provided on the main frame is a light guide plate, and by arranging the side lighting device of the light guide plate, the exterior plate can be omitted, and the height and width dimensions of the escalator are reduced. can do.
[0014]
When an escalator is additionally provided, a support member is provided between adjacent exterior plates among the exterior plates attached to the main frame, and a lighting device using a cold cathode tube as a light source is provided on the support member. With this arrangement, the lighting equipment can be installed without increasing the interval between the escalators provided side by side.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described. FIG. 1 is a schematic perspective view showing an installed state of the escalator according to the first embodiment of the present invention, and FIG. 2 is a schematic vertical sectional view of one escalator shown in FIG.
[0016]
1 and 2, escalators 1 to 3 are installed over the upper floor and the lower floor, respectively. Each of the escalators 1 to 3 is provided with a main frame 4 and a large number of steps 5 are guided and supported by guide rails (not shown) provided in the main frame 4 so as to circulate.
[0017]
The main frame 4 is provided with a drive device (not shown) in an upper machine room at one end in the longitudinal direction, and a power drive chain is connected to the drive device via a transmission joint and a speed reduction mechanism. The sprocket is driven. A driven sprocket (not shown) is provided in the lower machine room at the other end of the main frame 4 in the longitudinal direction, and an endless step chain is wound around the driving sprocket and the driven sprocket. 5 are connected at an equal pitch.
[0018]
The step 5 has a front wheel and a rear wheel attached to the front and rear thereof, and guides the front step and the rear wheel to guide rails provided in the main frame 4, which are provided in the main frame 4, including a forward guide rail, a return guide rail, and a reverse guide rail. By being supported, a large number of steps 5 circulate and travel in conjunction with the movement of the step chain.
[0019]
The vicinity of the position where the steps 5 are reversed is a passenger entrance / exit, and an entrance / exit board 6 is provided on the main frame 4 of the entrance / exit.
[0020]
A balustrade 7 is erected on both sides in the width direction of the main frame 4, and a handrail belt 8 running in synchronization with a number of steps 5 is provided above the balustrade 7. The drive of the handrail belt 8 and the steps 5 is controlled by a control device installed in the upper-floor machine room.
[0021]
A plurality of exterior plates 9 and 10 are attached to the bottom and side portions of the main frame 4. Of the exterior plates 9 and 10, the exterior plate 10 provided at the bottom is provided with a protective plate 12a made of a transparent or translucent material that transmits light, using the cold cathode fluorescent lamp 11 as a light source, on the surface side. The lighting fixture 12 is fitted so as to illuminate the outside of the exterior plate 10. The cold-cathode tube 11 of this lighting fixture 12 has a characteristic that the tube diameter is as small as about 4 mm and has a long life, and is disposed between the main frame 4 and the exterior plate 10 by utilizing this characteristic. . As the cold cathode tube 11, any of a type having an electrode inside a glass tube and a type having an electrode outside a glass tube can be adopted. As a power source for lighting the cold cathode tube 11, a power source for a control circuit of an escalator can be used, and power can be supplied from an outlet of a general power source.
[0022]
FIG. 3 is a block diagram illustrating an example of a drive circuit of the cold cathode tube 11. The drive circuit includes a power supply circuit 13, a switching circuit 14, an oscillation circuit 15, and a high-voltage transformer 16, and further includes a photodetector 17 and a pulse circuit 18. The light detector 17 outputs a dimming signal according to the ambient brightness, and the pulse circuit 18 receives the dimming signal and outputs a pulse signal that varies the duty ratio according to the dimming signal. The power supply circuit 13 supplies power of a constant voltage based on power supplied from a control power supply of the escalator or the like. The switching circuit 14 turns on / off the power supplied from the power supply circuit 13 to the oscillation circuit 15 by controlling the power supply based on the pulse signal of the pulse circuit 18. The oscillation circuit 15 generates a sine wave and is applied to the high-voltage transformer 16. The high-voltage transformer 16 generates a voltage required to turn on the cold-cathode tube 11, and the cold-cathode tube 11 emits light only during the period when the voltage is applied.
[0023]
In this manner, by utilizing the characteristics of the cold cathode tube 11 having a small tube diameter of, for example, about 4 mm and a long life, the lighting fixture 12 using the cold cathode tube 11 as a light source is configured and fitted to the exterior plate 10. The space between the outer panel 10 and the main frame 4 can be reduced by installing the luminaire 12, and maintenance work such as replacement and cleaning of the luminaire 12 is almost unnecessary until the life of the escalator. Since it is not necessary to prepare a special working facility, the burden can be reduced.
[0024]
FIG. 4 is a schematic longitudinal sectional view showing an escalator according to the second embodiment of the present invention. In the present embodiment, a protective plate 12a made of a transparent or translucent material that transmits light is provided on the surface side of the exterior plate 9 provided on the side of the main frame 4 using the cold cathode tube 11 as a light source. The lighting fixture 12 is fitted so as to illuminate the outside of the exterior plate 9. The space between the side of the main frame 4 and the outer panel 9 is narrow, and a large object such as a fluorescent lamp could not be installed conventionally. However, as in the present embodiment, a lighting fixture using the cold cathode tube 11 as a light source is used. The use of 12 makes it possible to install a lighting fixture on the side of the main frame 4.
[0025]
FIG. 5 is a schematic longitudinal sectional view showing an escalator according to a third embodiment of the present invention. In the present embodiment, an acrylic plate 19 on which a notice is given is fitted into a part of an exterior plate 9 provided on a side portion of the main frame 4, and an illumination using the cold cathode tube 11 as a light source is inside the acrylic plate 19. The device 20 is provided so as to illuminate the outside of the exterior plate 9. The lighting fixture 20 can perform external lighting and publicity together.
[0026]
FIG. 6 is a schematic vertical sectional view showing an escalator according to a fourth embodiment of the present invention. In the present embodiment, a protective plate 21a made of a transparent or translucent material that transmits light is provided on the outer surface of the exterior plate 10 provided on the lower portion of the main frame 4 using the cold cathode tube 11 as a light source. The lighting fixture 21 is attached to illuminate the outside of the exterior plate 9.
[0027]
With such a configuration, the lighting fixture 21 can be retrofitted to the bottom exterior plate 9 of the existing escalator, and a large installation space is not required.
[0028]
FIG. 7 is a schematic vertical sectional view showing an escalator according to a fifth embodiment of the present invention. In the present embodiment, instead of the exterior plates 9 and 10 provided on the bottom and side portions of the main frame 4, a part of the exterior plate is a light guide plate such as an acrylic resin plate or a glass plate, and a long side is provided on the side. The light source of the cold cathode tube 11 is arranged. The exterior plates 9 and 10 are omitted by directly attaching the so-called edge light type lighting fixture 22 to the main frame 4.
[0029]
The edge light type lighting fixture 22 includes a light guide plate 23 made of a transparent material, a cold cathode tube 11 provided on an end surface of the light guide plate 23 in the flat plate direction, and a light provided around the cold cathode tube 11. It has a reflective reflector 24, a light reflecting plate 25 disposed on the back side of the light guide plate 23, a light diffusion plate 26 disposed on the surface side of the light guide plate 23, and a protective case 27 for accommodating these. Light from the cathode tube 11 enters from the side 30 of the light guide plate 23, is reflected by the reflection plate 25 on the back of the light guide plate, and is emitted from the light diffusion plate 26.
[0030]
In this way, the height and width of the escalator can be reduced and the escalator can be reduced in size by attaching the edge light type lighting fixture 22 without using the exterior plates 9 and 10. .
[0031]
FIG. 8 is a schematic vertical sectional view showing an escalator according to the sixth embodiment of the present invention. In the present embodiment, when an escalator is also provided, a support member 28 is provided between adjacent exterior plates 9, 9 of the exterior plates 9, 10 attached to the main frame 4, respectively. In addition, a lighting fixture 29 using the cold cathode tube 11 as a light source is disposed.
[0032]
With this configuration, the lighting fixture 29 can be installed without increasing the interval between the escalators provided side by side.
[0033]
Although a cold cathode tube is used as a light source, an LED (semiconductor light emitting element) or an organic EL (electroluminescence) may be used. The color of the light emitted from the light source is not limited to white, and other colors may be used according to the installation location, the surrounding environment, the amount of light, the time, the season, and the like. Needless to say, the light source may be formed by appropriately mixing LEDs, organic EL, and the like. That is, these light-emitting bodies can be used as a light source as long as the object of the present invention is achieved.
[0034]
【The invention's effect】
As described above, according to the escalator of the present invention, a lighting device using a cold-cathode tube, an LED, an organic EL, or the like as a light source is provided in place of the exterior plate or the exterior plate of the main frame. Utilizing the characteristics of the light source, the installation space for the lighting fixture can be reduced, and the escalator can be downsized, and the burden of maintenance and inspection work can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an installed state of an escalator according to a first embodiment of the present invention.
FIG. 2 is a schematic sectional view of one escalator shown in FIG.
FIG. 3 is a block diagram illustrating an example of a driving circuit for a cold cathode tube.
FIG. 4 is a schematic longitudinal sectional view showing an escalator according to a second embodiment of the present invention.
FIG. 5 is a schematic longitudinal sectional view showing an escalator according to a third embodiment of the present invention.
FIG. 6 is a schematic longitudinal sectional view showing an escalator according to a fourth embodiment of the present invention.
FIG. 7 is a schematic longitudinal sectional view showing an escalator according to a fifth embodiment of the present invention.
FIG. 8 is a schematic longitudinal sectional view showing an escalator according to a sixth embodiment of the present invention.
[Explanation of symbols]
1, 2, 3, escalator 4, main frame 5, step 6, step board 7, railing 8, handrail belt 9, 10, exterior plate 11, cold cathode tube 12a, protection plate 12, 21, 22, 29, lighting equipment DESCRIPTION OF SYMBOLS 13 ... Power supply circuit 14 ... Switching circuit 15 ... Oscillation circuit 16 ... High voltage transformer 17 ... Light detector 18 ... Pulse circuit 19 ... Acrylic plate 21a ... Protective plate 23 ... Light guide plate 24 ... Reflector 25 ... Light reflecting plate 26 ... Light diffusing plate 27 ... Protective case 28 ... Support member

Claims (6)

An escalator comprising: a main frame that supports a step that circulates, an exterior plate attached to the outside of the main frame, and a lighting device that is provided on the exterior plate and uses a cold-cathode tube as a light source to illuminate the outside. . The escalator according to claim 1, wherein the lighting fixture is provided on an exterior plate provided on a bottom portion or a side portion of the main frame. 2. The lighting device according to claim 1, wherein at least a part of the exterior plate is formed of a display plate through which light can be transmitted and a notice display is given, and the lighting fixture is disposed inside the display plate. 3. Escalator. The escalator according to claim 1, wherein at least a part of an exterior plate provided at a bottom portion of the main frame is a light guide plate, and a lighting fixture is provided on a side of the light guide plate. A main frame provided to support the steps that respectively circulate and run, an exterior plate attached to the outside of each of the main frames, a support member provided between adjacent exterior plates, and an attachment member attached to the support member. And an illuminator using a cold cathode tube as a light source. The main frame includes a main frame that supports the steps that circulate and travels, an exterior plate attached to the outside of the main frame, and a lighting device that is disposed on the exterior plate and illuminates the outside with an LED or organic EL as a light source. Escalator.

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