JP4820896B2 - Escalator monitoring device - Google Patents

Description

  The present invention relates to an escalator monitoring apparatus that monitors an escalator using a monitoring camera.

  In a building where an escalator is installed, if the escalator is installed alone in the building, a narrow-angle portion (triangular portion) is formed between the moving handrail and the ceiling. In addition, some escalator installation structures include an ascending escalator and a descending escalator that are installed side by side between the upper and lower floors in a side view. In the case of this escalator installation structure, a narrow angle portion is formed between the moving handrail of the escalator and the bottom of the other escalator. These narrow-angle portions are generally provided with a protective body for preventing passengers from being caught.

  An escalator monitoring device disclosed in Patent Document 1 is a monitoring camera provided on a pillar of a building located on a lower floor side so as to face a narrow-angle protection plate as a protection body so as to be able to photograph passengers' situations. And a sensor for detecting the shaking of the narrow angle portion protection plate. And the image | video image | photographed with the surveillance camera within a predetermined time before and after the time when the sensor detected the swing of the narrow angle part protection plate is recorded. Thereby, the image | video of the situation of an accident can be preserve | saved by the fall of the passenger in the vicinity of a narrow angle part, a fall, or being pinched.

  In the safety device for a man conveyor disclosed in Patent Document 2, a cylindrical detection body is suspended from a ceiling in front of a guard plate as a protection body. The lower end of the detection body is connected to the balustrade through an elastic body. The passenger of the ascending escalator can notice the approach to the narrow angle part before contacting the protector by contacting the detector before contacting the protector.

JP 2002-114475 A Japanese Utility Model Publication No. 61-154278

  In monitoring the escalator, it is desirable to be able to monitor the range from the escalator landing and its surroundings to the steps, the handrail, the landing and the surroundings. Conventionally, in order to be able to monitor the range, a plurality of monitoring cameras are provided distributed on at least one of a wall, a ceiling, and a pillar of a building. However, if the ceiling has a hollow structure, the ceiling has a special finish, or the surface of the pillar and the wall have a glass finish, such as when the ceiling, wall, or pillar is special, install a surveillance camera. I can't. Even if the ceiling, walls, and pillars are not special, surveillance cameras are limited in that they do not impair the aesthetics of the building as much as possible and do not disturb passengers. It may be difficult to ensure the field of view of the camera.

  In addition, when a surveillance camera is installed on the ceiling, wall, or pillar, external light such as light from inside the building is incident on the visual field of the surveillance camera, and the external light is reflected in the video taken by the surveillance camera. It may be difficult to see certain parts.

  The present invention has been made in consideration of the above-described circumstances. The purpose of the present invention is to allow a surveillance camera to be installed without being affected by the structure and finish of the building, and the surveillance camera after installation impairs the aesthetics of the building. It is another object of the present invention to provide an escalator monitoring device that does not interfere with passengers and that can reduce the reflection of external light on an image captured by a monitoring camera.

[1] In order to achieve the foregoing objects, the monitoring device of the escalator according to the present invention, with the ceiling, or narrow angle portion is formed between the other escalator adjacent in a state of crossed An escalator provided at the narrow angle portion and provided with respect to an escalator having a protector for preventing a passenger from being caught in the narrow angle portion during the ascending operation of the escalator, and monitoring the escalator with a surveillance camera. In the monitoring device, the escalator is provided in a posture extending in the vertical direction integrally with the protection body or alongside the protection body on the rear end side of the protection body when the upward direction of the escalator is the front direction, A camera housing tube housing a monitoring camera; and a light shielding member that is provided below the monitoring camera inside the camera housing tube and blocks outside light traveling toward the monitoring camera. The camera housing cylinder has a transparent portion that opens the field of view of the surveillance camera.

  In the escalator monitoring apparatus described in “[1]”, the camera housing cylinder is provided integrally with the protective body or alongside the protective body at the narrow angle portion, and the monitoring camera is housed in the camera housing cylinder. ing. Thereby, the surveillance camera can be installed without being affected by the structure and finish of the building. Furthermore, the surveillance camera after installation does not impair the aesthetics of the building and does not disturb passengers.

  Also, since the surveillance camera is housed in the camera housing cylinder, the external light that enters the field of view of the surveillance camera is the light itself that has entered the camera housing cylinder from the lower end of the camera housing cylinder, or the light itself. Some of them reach the field of view by reflection on the inner wall surface of the camera housing cylinder. The light shielding member prevents the outside light from entering the visual field of the surveillance camera inside the camera housing cylinder. As a result, it is possible to reduce the appearance of external light in the video taken by the surveillance camera.

[2] The escalator monitoring device according to the present invention is the escalator monitoring device according to “[1]”, wherein the light shielding member includes a lower edge of a visual field in the vertical direction of the monitoring camera and an inner wall surface of the camera housing cylinder. It is provided in such a manner that a space inside the camera housing cylinder is divided in the axial direction of the camera housing cylinder.

  In the monitoring apparatus for an escalator described in “[2]”, the camera is directed from the lower side to the monitoring camera than near the position where the lower edge of the vertical field of view of the monitoring camera intersects the inner wall surface of the camera housing cylinder. Since the outside light traveling through the housing cylinder is blocked by the light blocking member, it does not enter the field of view of the surveillance camera. Thereby, the incidence of external light on the visual field of the surveillance camera can be reduced more effectively.

[3] An escalator monitoring device according to the present invention is the escalator monitoring device according to “[2]”, wherein both the protection body and the camera housing cylinder are made of a transparent member, and the light shielding member is the camera. It is a film shape spreading in the direction intersecting the axial direction of the housing cylinder.

  In order to reduce the incidence of external light into the field of view of the surveillance camera in the camera housing cylinder, it is also possible to apply a light shielding agent to the inner wall surface of the camera housing cylinder or to cover the inner wall surface with a light shielding film. It is done. In this case, the color of the camera housing tube is opaque in appearance (because of light shielding properties). However, when the protective body is a transparent member, there is a concern that an uncomfortable feeling may be caused in the design surface in a state where the opaque colored camera housing cylinders are arranged side by side on the transparent protective body. According to the escalator monitoring apparatus described in “[3]”, the colored portions on the appearance of the camera housing cylinder are the portion in which the surveillance camera is accommodated and the thick portion of the film-shaped light-shielding member. Since most of the camera housing tube looks transparent in appearance, it is possible to prevent the design surface from feeling uncomfortable due to the color difference between the protector and the camera housing tube.

  According to the present invention, as described above, the surveillance camera can be installed without being affected by the structure and finish of the building, and the surveillance camera after installation does not impair the aesthetics of the building and does not disturb the passengers. In addition, it is possible to reduce the reflection of external light on the video taken by the surveillance camera.

It is an example of the installation structure of the escalator which concerns on this invention, and is a side view of the several escalator installed by crossing. It is a fragmentary sectional view which shows the installation structure of the monitoring camera in the monitoring apparatus of the escalator which concerns on one Embodiment of this invention. It is a figure which shows the mode of reflection of the external light in the wall which forms the thickness of a camera storage cylinder. The figure which shows the mode of the external light reflected in the inner side of a camera storage cylinder. It is an example different from FIG. 1 of the installation structure of the escalator which concerns on this invention, and is a side view of the escalator provided independently in the building.

  An escalator monitoring apparatus according to an embodiment of the present invention will be described.

  In the three-story building shown in FIG. 1, the first ascending escalator 1A, which is an escalator installed between the first floor and the second floor and operated to rise, and between the second floor and the third floor The second ascending escalator 1B, which is an escalator that is installed on the hill and is driven to rise, is such that the landing area of the first ascending escalator 1A and the landing area of the second ascending escalator 1B form a landing, and form a bent shape in a side view. It is attached. Similarly, the first descending escalator 2A, which is an escalator installed between the first floor and the second floor and operated to descend, is installed between the second floor and the third floor and operated to descend. The second descending escalator 2B, which is the first escalator 2B, is a landing where the landing site of the first descending escalator 2A and the descending site of the second descending escalator 2B form a landing. It is installed side by side to form a bent shape in the opposite direction. In order to effectively use the space in the building, the first ascending escalator 1A and the second descending escalator 2B are arranged so as to overlap in the vertical direction. Similarly to this, the second ascending escalator 1B and the first descending escalator 2A are also arranged so as to overlap in the vertical direction.

  Since the first ascending escalator 1A, the second ascending escalator 1B, the first descending escalator 2A, and the second descending escalator 2B are thus installed, the moving handrail 5 of the first ascending escalator 1A and the bottom of the first descending escalator 2A 2a, between the moving handrail 5 of the first descending escalator 2A and the bottom 2a of the first ascending escalator 1A, between the moving handrail 5 of the first ascending escalator 1A and the bottom 2a of the second ascending escalator 1B, Movement of the second descending escalator 2B between the moving handrail 5 of the first descending escalator 2A and the bottom 2a of the second descending escalator 2B, between the traveling handrail 5 of the second ascending escalator 1B and the bottom 2a of the second descending escalator 2B A narrow angle portion 7 is formed between each of the handrail 5 and the bottom portion 2a of the second upward escalator 1B.

  The first ascending escalator 1A includes a frame 3 that spans from the first floor to the second floor and forms the framework of the first ascending escalator 1A, and a plurality of steps provided on the frame 3 so as to be movable endlessly ( (Not shown) and a pair of balustrades 4 and a pair of balustrades 4 that are opposed to each other across the track of a step that carries passengers out of these steps. And an outer deck board 6 supported from the opposite side. The moving handrail 5 moves endlessly around the balustrade 4. Although not shown, the frame 3 is provided with a motor, a transmission device for transmitting the output of the motor to the steps and the moving handrail 5, a control panel for controlling the motor, and the like. The frame 3 is covered with a plate member such as an outer deck board 6, thereby forming a storage unit 2 for storing the motor, the transmission device, the control panel, and the like. The lower surface of the storage unit 2 is the bottom 2a of the first ascending escalator 1A.

  The second up escalator 1B, the first down escalator 2A, and the second down escalator 2B are also configured in the same manner as the first up escalator 1A. An illumination device (not shown) that illuminates the first descending escalator 2A is provided on the bottom 2a of the second ascending escalator 1B. An illumination device (not shown) for illuminating the first ascending escalator 1A is provided on the bottom 2a of the second descending escalator 2B.

  All narrow-angle portions 7 are provided with a protector for preventing passengers from being caught. For example, a narrow-angle portion 7 formed by the moving handrail 5 of the first ascending escalator 1A and the bottom portion 2a of the first descending escalator 2A is fixed to the bottom 2a of the first descending escalator 2A as a protective body. A fixed protector 8 made of a trapezoidal plate member is provided. Furthermore, a trapezoidal plate member suspended from the bottom 2a of the first descending escalator 2A is provided on the rear side of the fixed protector 8 when the ascending direction (arrow U direction) of the first ascending escalator 1A is the forward direction. A movable warning body 9 is provided. This movable warning body 9 is also a kind of protective body. The fixed protective body 8 and the movable warning body 9 are members of the same material, for example, a transparent acrylic member. That is, in the present embodiment, the entire protector is made of a transparent member. The fixed protective body 8 and the movable warning body 9 are disposed above the outer deck board 6.

  At the rear end of the movable warning body 9, a cylindrical portion 9a made of transparent acrylic extending in the vertical direction is integrally provided. The cylindrical portion 9 a has a cylindrical shape with an outer diameter D that is larger than the thickness of the movable warning body 9. That is, by making it easy to spread the impact when the passenger comes into contact with the movable warning body 9, the safety at the time of the passenger's contact with the movable warning body 9 is enhanced. The passenger can notice the approach of the narrow-angle portion 7 before contacting the fixed protector 8 by contacting the movable warning body 9 before contacting the fixed protector 8.

  The lower ends of the fixed protective body 8, the movable warning body 9, and the cylinder portion 9 a are all arranged at a position lower than the upper surface of the moving handrail 5.

  The monitoring device according to the present embodiment includes a cylindrical camera housing cylinder 20 provided in a posture extending in the vertical direction behind the movable warning body 9, and a state of being housed in the camera housing cylinder 20 as shown in FIG. And a base member 23, ring members 24 and 25, a mounting member 26 and the like for installing the camera housing cylinder 20 and the monitoring camera 21 on the bottom 2a of the first descending escalator 2A.

  The camera housing cylinder 20 is separate from the movable warning body 9 and is positioned side by side with the movable warning body 9 in the front-rear direction. The camera housing cylinder 20 is also a member made of transparent acrylic as a whole, like the fixed protective body 8 and the movable warning body 9, that is, a member having a transparent portion that opens the visual field FV of the surveillance camera 21. The length of the camera housing cylinder 20 in the axial direction (vertical direction in FIGS. 1 and 2) is such that the lower end of the camera housing cylinder 20 is in the state where the camera housing cylinder 20 is installed on the bottom 2a of the first descending escalator 2A. It is set to be positioned 200 mm or more below the upper surface of the moving handrail 5.

  The base member 23 is provided with a plate portion 23a fixed to the bottom portion 2a of the first descending escalator 2A by screwing, and an annular shape having a hole penetrating in the front-rear direction, protruding downward from the plate portion 23a. It has two annular support parts 23b and 23c. These annular support parts 23b and 23c are located side by side in the front-rear direction. Further, ring members 24 and 25 are inserted through the annular support portions 23b and 23c, respectively.

  The attachment member 26 includes suspension portions 27 and 28 that are positioned to face the radial direction (front-rear direction) of the camera housing cylinder 20, and a connection portion 29 that connects these suspension portions 27 and 28. A suspension hole 27 a is formed in the suspension part 27. The suspension hole 27 a is a hole that penetrates in the radial direction (front-rear direction) of the camera housing cylinder 20. A suspension hole (not shown) similar to the suspension hole 27 a is also formed in the suspension portion 28. The ring members 24 and 25 are inserted into the suspension holes 27a of the suspension part 27 and the suspension holes of the suspension part 28, respectively, whereby the attachment member 26 is suspended from the bottom part 2a of the first descending escalator 2A.

  The camera housing cylinder 20 is screwed to the suspension portions 27 and 28 by screws 27c and 28c. That is, the camera housing cylinder 20 is suspended from the bottom 2a of the first descending escalator 2A via the base member 23, the ring members 24 and 25, and the attachment member 26. Further, the lower end of the camera housing cylinder 20 is elastically coupled to the outer deck board 6 of the first ascending escalator 1A via a wire 80, so that the camera housing cylinder 20 is normally prevented from shaking, and passengers can The impact given to the passenger when the camera housing cylinder 20 is touched is reduced.

  The surveillance camera 21 includes a cylindrical case 21a and a lens cover 21b provided on one end surface of the case 21a so as to protrude in a dome shape. The end surface of the case 21a opposite to the lens cover 21b side is screwed to the connecting portion 29 of the mounting member 26 described above. That is, the monitoring camera 21 is suspended from the bottom 2a of the first descending escalator 2A together with the camera housing cylinder 20.

  In FIG. 2, FV is the field of view of the monitoring camera 21, and θ is the viewing angle in the vertical direction of the field of view FV. The monitoring apparatus according to the present embodiment includes a light shielding member 30 inside the camera housing cylinder 20. The light shielding member 30 is formed in a film shape, and is positioned by dividing the space inside the camera housing tube 20 in the axial direction of the camera housing tube 20. The light shielding member 30 is provided close to a position A where the lower edge of the visual field FV in the vertical direction of the monitoring camera 21 and the inner wall surface 20a1 of the camera housing cylinder 20 intersect. Further, as described above, the camera housing cylinder 20 is made of acrylic, but the light shielding member 30 is made of a material different from acrylic, for example, polyethylene terephthalate.

  Here, the external light incident on the monitoring camera 21 in the camera housing cylinder 20 will be described.

  In FIG. 3, 31 is a space inside the camera housing cylinder 20 (hereinafter referred to as “in-cylinder space”), 32 is a space outside the camera housing cylinder 20 (hereinafter referred to as “extra-cylinder space”), and 20 a This is the wall of the camera housing cylinder 20. Further, na is the refractive index of air, and nb (nb <na) is the refractive index of the wall 20a. External light R1 enters the in-cylinder space 31 from the opening at the lower end of the camera housing cylinder 20. When the incident angle α of the external light R1 with respect to the wall 20a is larger than the critical angle (= arcsin (na / nb)), the external light R1 is totally reflected on the surface of the reflected light wall 20a and becomes reflected light R2. Go diagonally upward. When the incident angle α is smaller than the critical angle, the transmitted light R3 is transmitted through the wall 20a and exits to the outside-cylinder space 32. Since the refractive index na of air is larger than the refractive index nb of the wall 20a, total reflection does not occur at the interface between the wall 20a and the extra-cylinder space 32. Of the reflected light R2 and the transmitted light R3, the reflected light R2 may enter the visual field FV of the monitoring camera 21. That is, as shown in FIG. 4, the external light R that has entered the camera housing cylinder 20 may reach the visual field FV by repeating total reflection at the wall 20 a in the in-cylinder space 31. The light blocking member 30 described above blocks the light R traveling toward the field of view FV in the vicinity of the position A.

  The monitoring apparatus according to the present embodiment can obtain the following effects.

  In the monitoring apparatus according to the present embodiment, the camera housing cylinder 20 is provided in parallel with the movable warning body 9 which is a kind of protective body in the narrow angle portion 7, and the monitoring camera 21 is housed in the camera housing cylinder 20. ing. Thereby, the surveillance camera 21 can be installed without being influenced by the structure and finish of the building. Furthermore, the surveillance camera 21 after installation does not impair the aesthetics of the building and does not disturb passengers.

  In the monitoring apparatus according to the present embodiment, the camera is accommodated toward the monitoring camera 21 from below the vicinity of the position A where the lower edge of the visual field FV in the vertical direction of the monitoring camera 21 and the inner wall surface of the camera accommodating cylinder 20 intersect. The external light traveling in the cylinder 20 is blocked by the light blocking member 30 and therefore does not enter the visual field FV of the monitoring camera 21. Thereby, the incidence of external light on the visual field FV of the monitoring camera 21 can be reduced.

  In the monitoring apparatus according to the present embodiment, the camera housing cylinder 20 is provided side by side with the movable warning body 9, and the movable warning body 9 is provided with a cylindrical portion 9 a having the same shape as the camera housing cylinder 20. Thereby, it can be made difficult to give a sense of incongruity that the camera housing cylinder 20 is specially provided for installing the surveillance camera 21.

  In the monitoring apparatus according to the present embodiment, the monitoring camera 21 is at a height that can be reached by the passenger, but since these are housed in the camera housing tube 20, contact with the passenger can be prevented. In other words, mischief by passengers can be prevented and it is safe for passengers.

  In the monitoring device according to the present embodiment, the fixed protective body 8, the movable warning body 9, and the camera housing cylinder 20 are all transparent members. Further, in the camera housing cylinder 20, the part in which the surveillance camera 21 is housed and the thick part of the film-shaped light-shielding member 30 appear colored in appearance, but most of the camera housing cylinder 20 is transparent in appearance. Looks like. As a result, it is possible to prevent the design surface from feeling uncomfortable due to the color difference between the fixed protective body 8 and the movable warning body 9 and the camera housing cylinder 20.

  In the monitoring apparatus according to the present embodiment, since the camera housing cylinder 20 and the light shielding member 30 are made of different materials, the camera housing cylinder 20 and the light shielding member 30 do not melt and adhere to each other at the contact portion.

  In the monitoring device according to the above-described embodiment, the camera housing cylinder 20 is a separate body of the movable warning body 9 and is positioned behind the movable warning body 9 and along with the movable warning body 9. The tube portion 9a provided integrally with the movable warning body 9 may be a camera housing tube.

  In the escalator monitoring apparatus according to the above-described embodiment, the monitoring camera 21 is installed in the narrow angle portion 7 formed in the intersecting escalator. The narrow-angle portion is not only formed between the bottom of the escalator and the moving handrail. In the escalator installation structure shown in FIG. 5, an ascending escalator 90 that conveys passengers from the first floor to the second floor of the building is provided alone in the building. A narrow-angle portion 92 is also formed between the moving handrail 5 of the ascending escalator 90 and the ceiling 91 on the first floor. The camera housing cylinder 20 may be provided in the narrow-angle portion 92 together with the fixed protection body 8 and the movable warning body 9, and the monitoring camera 21 may be housed in the camera housing cylinder 20.

  A cylindrical portion 93 similar to the cylindrical portion 9a of the movable warning body 9 is provided at the rear end of the fixed protective body 8 shown in FIG. The narrow angle portions 7 and 92 may not be provided with the movable warning body 9 and the tube portion 9a. In this case, since the cylinder part 93 is provided at the rear end of the fixed protector 8 from the viewpoint of passenger protection, the cylinder part 93 may be used as a camera housing cylinder.

DESCRIPTION OF SYMBOLS 1A 1st ascending escalator 1B 2nd ascending escalator 2A 1st descending escalator 2B 2nd descending escalator 2 Storage part 2a Bottom part 3 Frame 4 Railing 5 Moving handrail 6 Outer deck board 7 Narrow angle part 8 Fixed protector (protector)
9 Movable warning body (protective body)
9a Tube portion 20 Camera housing tube 20a Wall 20a1 Inner wall surface 21 Surveillance camera 21a Case 21b Lens cover 23 Base member 23a Plate portion 23b, 23c Ring support portion 24, 25 Ring member 26 Mounting member 27, 28 Lifting portion 27a Hanging hole 27b Screw Hole 27c, 28c Screw 29 Connecting portion 31 In-cylinder space 32 Out-cylinder space 40 Light-shielding member 80 Wire

90 Ascending escalator 91 Ceiling 92 Narrow-angle part 93 Cylinder part

Claims (3)

Between the ceiling, or forms a narrow angle portion between the other escalator to adjacent crossed state, passenger the narrow angle portions at the time of rising operation of the escalator provided on the narrow angle portion In an escalator monitoring device that is provided for an escalator having a protector that prevents the escalator from being caught by a monitoring camera,
Provided in a posture extending in the vertical direction integrally with the protective body or alongside the protective body on the rear end side of the protective body when the upward direction of the escalator is the forward direction, and accommodates the surveillance camera A camera housing tube,
A light-shielding member that is provided below the monitoring camera inside the camera housing cylinder and blocks outside light traveling toward the monitoring camera;
2. The escalator monitoring device according to claim 1, wherein the camera housing cylinder has a transparent portion that opens a field of view of the monitoring camera. In the escalator monitoring apparatus according to claim 1,
The light shielding member is close to a position where a lower edge of a vertical field of view of the monitoring camera intersects with an inner wall surface of the camera housing tube, and an inner space of the camera housing tube is disposed in an axial direction of the camera housing tube An escalator monitoring device characterized by being provided to be divided into two parts. The escalator monitoring device according to claim 2,
The protector and the camera housing tube are both made of a transparent member,
The escalator monitoring device according to claim 1, wherein the light-shielding member has a film shape spreading in a direction intersecting an axial direction of the camera housing cylinder.

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