JP2011251850A - Device for monitoring of escalator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for monitoring of an escalator, with which a plurality of monitoring cameras can be disposed without being affected by the structure or finishing of a building, while the beauty of the building is not affected by the disposed cameras, and which does not become an obstacle to passengers and gives an image pictured by monitoring cameras with decreased image of outside light.SOLUTION: The monitoring device is mounted to a narrow corner which is formed between a bottom of one escalator and a moving handrail of other escalator of two neighboring escalators while crossing to each other. The device is mounted to the escalator having a protection body for protecting passengers from being trapped into the narrow corner. When rising direction of the escalator is defined to be a forward direction, at the rear end side of the protection body, a camera storage tube 20 extending up and down direction near the protection body is disposed. In the camera storage tube 20, a first monitoring camera 21 and a second monitoring camera 22, which are aligned next to each other in the up and down direction, and a light shielding material 100, which shields outside light advancing toward the monitoring camera 22 disposed in the camera storage tube 20, are provided.

Description

  The present invention relates to an escalator monitoring apparatus that monitors an escalator using a plurality of monitoring cameras.

  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 the wall and ceiling of the building. However, when the ceiling has a blow-off structure, the ceiling has a special finish, the surface of the pillar and the wall glass finish, or the like, the surveillance camera cannot be installed. Even if the ceiling, walls, and pillars are not special, surveillance cameras will be limited because the location of surveillance cameras will be limited in consideration of not damaging the aesthetics of the building as much as possible and not disturbing 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, and a first object of the present invention is to install a plurality of surveillance cameras without being influenced by the structure and finish of the building, and a plurality of cameras after the installation. It is an object of the present invention to provide a monitoring device for an escalator that does not impair the beauty of a building, does not obstruct passengers, and can reduce the reflection of external light on an image taken by the monitoring camera.

  A second object is to provide an escalator monitoring device that can easily adjust the orientation of the visual field of each of a plurality of monitoring cameras.

[1] In order to achieve the first object described above, an escalator monitoring device according to the present invention is a narrow-angle portion formed between a ceiling of a lower floor and a moving handrail of the escalator, or in a crossed state. A passenger is sandwiched by the narrow angle portion during the ascending operation of the escalator, which is provided in a narrow angle portion formed between the bottom of one escalator of two adjacent escalators and the moving handrail of the other escalator. In an escalator monitoring device that is provided for an escalator having a protector for preventing the escalator and monitors the escalator with a plurality of monitoring cameras, the rear end of the protector when the upward direction of the escalator is the forward direction And a camera housing tube provided in a posture extending in the vertical direction in the vicinity of the protector or in the vicinity of the protector. A plurality of surveillance cameras are provided side by side in the vertical direction, and provided with a light-shielding member that is provided below the surveillance camera inside the camera housing cylinder and blocks external light traveling toward the surveillance camera. The tube has a transparent part that opens the field of view of the monitoring camera.

  In the escalator monitoring apparatus described in “[1]”, the camera housing cylinder is provided integrally with or in the vicinity of the protective body at the narrow angle portion, and a plurality of monitoring cameras are provided in the camera housing cylinder. Is provided. Thereby, a plurality of surveillance cameras can be installed without being affected by the structure and finish of the building. Furthermore, the plurality of surveillance cameras 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 on the inner wall of the camera housing. 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] In order to achieve the second object, an escalator monitoring device according to the present invention is the escalator monitoring device according to [1], wherein the first monitoring camera as the plurality of the monitoring cameras, and A second surveillance camera; a mounting member attached to the ceiling of the lower floor or the bottom of the one escalator and inserted into the camera housing tube; and a first member positioned below the mounting member in the camera housing tube A camera support member; and a second camera support member positioned below the first camera support member in the camera housing tube, the first camera support member extending in a radial direction of the camera housing tube A first coupling portion coupled to the mounting member so as to be rotatable in a circumferential direction of the camera housing cylinder; and the first monitoring portion extending downward from one end of the first coupling portion in the radial direction. A camera mounting portion to which a camera is mounted, and a second coupling portion that is positioned with the first surveillance camera sandwiched between the first coupling portion and coupled to the second camera support member, The two camera support members are coupled to the second coupling portion of the first camera support member so as to be rotatable in the circumferential direction of the camera housing cylinder, and extend downward from one end of the coupling portion and And a camera mounting portion to which the second surveillance camera is mounted.

[3] The escalator monitoring device according to the present invention is the escalator monitoring device according to “[2]”, wherein the mounting member is located facing the radial direction of the camera housing cylinder and is connected to the ceiling of the lower floor or A suspension portion suspended from a bottom portion of the one escalator, and a coupling portion connecting these suspension portions and coupled to the first coupling portion of the first camera support member; The first camera support member is a groove-shaped member having opposite sides of the first coupling portion and the second coupling portion, and the second camera support member is the first member. It is a member having the same shape and the same size as the camera support member, and one of the opposite sides is a joint portion joined to the second joint portion of the first camera support member, and the joint portion of the mounting member and the first camera 1st result of support member Parts are joined by screwing, coupling portion of the second coupling portion and the second camera support member of the first camera support member is characterized by being coupled by screwing.

  According to the escalator monitoring apparatus described in these “[2]” and “[3]”, the degree of screw fastening that connects the coupling portion of the mounting member and the first coupling portion of the first camera support member. When the first camera support member is rotated relative to the mounting member in the circumferential direction of the camera housing tube, the viewing angle of the first surveillance camera can be easily adjusted. Further, the second camera support member is attached to the first camera support member by weakening the tightening degree of the screw that connects the second connection portion of the first camera support member and the connection portion of the second camera support member. By rotating the camera housing tube in the circumferential direction, the direction of the viewing angle of the second monitoring camera can be easily adjusted.

[4] The escalator monitoring device according to the present invention is the escalator monitoring device according to “[2]” or “[3]”, wherein the first monitoring camera and the camera mounting portion of the first camera support member are provided. A rotation support portion that enables the first monitoring camera to rotate in the vertical direction with respect to the first camera support member is provided between the second monitoring camera and the camera mounting portion of the second camera support member. A rotation support portion that enables the second monitoring camera to rotate in the up-down direction with respect to the second camera support member is provided.

  In the escalator monitoring apparatus described in “[4]”, the first monitoring camera can be rotated in the vertical direction by the rotation support portion with respect to the first camera support member. The vertical direction of the corner can be adjusted, and the second monitoring camera can be rotated in the vertical direction by the rotation support portion with respect to the second camera support member. Can be adjusted. Thus, the visual field of the entire first and second surveillance cameras can be adjusted, the escalator's tilt angle, the shape and dimensions of the escalator such as the distance from the landing to the landing, and the arrangement of the first and second surveillance cameras. It can be done finely according to.

[5] 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 the space inside the camera housing tube is divided in the axial direction of the camera housing tube.

  In the monitoring apparatus for an escalator described in “[5]”, 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.

[6] The escalator monitoring device according to [2] in the escalator monitoring device according to the present invention, wherein both the protection body and the camera housing tube 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, the protective body is often a transparent member as a whole, and there is a concern that an uncomfortable feeling may be caused in the design surface in a state where opaque colored camera housing cylinders are arranged side by side on the transparent protective body. According to the escalator monitoring device described in “[6]”, the portions of the camera housing cylinder that are colored in appearance are the portion in which the surveillance camera is housed 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 monitoring device for an escalator according to the present invention described in “[1]”, as described above, a plurality of monitoring cameras can be installed without being influenced by the structure and finish of the building. The plurality of surveillance cameras do not impair the aesthetics of the building, do not disturb the passengers, and can reduce the reflection of external light in the images taken by the surveillance cameras.

According to the escalator monitoring device of the present invention described in “[2]” to “[4]”, as described above, the first camera support member is rotated in the circumferential direction of the camera housing cylinder with respect to the mounting member. The direction of the viewing angle of the first monitoring camera can be adjusted by rotating the second camera support member in the circumferential direction of the camera housing cylinder with respect to the first camera support member. The direction of the corner can be adjusted. As a result, the viewing angle of one of the first monitoring camera and the second monitoring camera can be set to the landing direction of the escalator, and the other viewing angle can be set to the landing direction of the escalator. Even in the installation location, it is easy to set the field of view of the entire first surveillance camera and the second surveillance camera so as to include a range sufficient for monitoring the escalator.

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 figure 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 an expansion perspective view of the attachment member shown in FIG. FIG. 3 shows a coupling structure of the first camera support member and the second camera support member, an attachment structure of the first surveillance camera to the first camera support member, and an attachment structure of the second surveillance camera to the second camera support member. It is an expansion exploded perspective view. It is a top view which shows an example of direction of the viewing angle in each horizontal direction of a 1st monitoring camera and a 2nd monitoring camera. It is a side view which shows an example of the direction of the viewing angle in each perpendicular | vertical direction of a 1st monitoring camera and a 2nd monitoring camera. 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. It is a 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.

  Embodiments of an escalator monitoring device according to the present invention will be described below with reference to the drawings.

  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 to. 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 that is the first escalator 2B, the landing site of the first descending escalator 2A and the landing site of the second descending escalator 2B form a landing, and when viewed from the side, the first ascending escalator 1A and the second ascending escalator 1B It is installed side by side so as 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 is provided on a frame (not shown) that is spanned from the first floor to the second floor and forms the framework of the first ascending escalator 1A, and is provided on the frame so as to be movable endlessly. Each of a plurality of steps 3 (shown in FIG. 5) and a pair of balustrades 4 and a pair of balustrades 4 that are located opposite to each other across the track of the steps 3 that carry passengers among these steps 3, An outer deck board 6 is provided which is supported from the outside, that is, the side opposite to the track side of the step. The moving handrail 5 moves endlessly around the balustrade 4. Although not shown in the figure, a motor, a transmission device that transmits the output of the motor to the steps and the moving handrail 5, a control panel that controls the motor, and the like are provided inside the frame. The frame is covered with a plate member such as the outer deck board 6, thereby forming the 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. Electric wire members (not shown) for supplying electric power to these lighting devices are wired in the storage portion 2 of the escalator provided with the lighting devices.

  All narrow-angle portions 7 are provided with a protector for preventing passengers from being caught. For example, a base fixed to the bottom 2a of the first descending escalator 2A as a protective body is provided at the narrow angle portion 7 formed by the moving handrail 5 of the first escalator 1A and the bottom 2a of the first descending escalator 2A. A fixed protector 8 made of a plate member having a shape 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 2A 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. 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 protector 8, the movable protector 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 is a camera that is separate from the movable warning body 9 and is positioned behind the movable warning body 9 in the front-rear direction and in a posture extending vertically. As shown in FIG. 2, the housing tube 20, the first monitoring camera 21 and the second monitoring camera 22 provided in the camera housing tube 20 in the vertical direction, the camera housing tube 20, the first monitoring camera 21, and A base member 23 for mounting the second monitoring camera 22 on the bottom 2a of the first descending escalator 2A, ring members 24 and 25, an attachment member 26, a first camera support member 30, a second camera support member 40, and the like. .

  The camera housing cylinder 20 is a transparent acrylic member similar to the fixed protector 8 and the movable warning body 9, that is, a member having a transparent portion that opens the field of view of the surveillance cameras 21 and 22. 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.

  As shown in FIG. 2, the base member 23 has a plate portion 23a fixed to the bottom portion 2a of the first descending escalator 2A by screws and an annular shape having a hole penetrating in the front-rear direction. It has two annular support parts 23b and 23c provided protruding in the direction. 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 facing the radial direction (front-rear direction) of the camera housing cylinder 20, and a coupling portion that couples the suspension portions 27 and 28 to the first camera support member 30. 29. Respective suspension holes 27a and 28a are formed in the suspension portions 27 and 28, respectively (FIG. 3). These suspension holes 27 a and 28 a are holes penetrating in the radial direction (front-rear direction) of the camera housing cylinder 20. In the axial direction of the camera housing cylinder 20, the positions of the suspension holes 27a and 28a are set to the same position. By attaching the ring members 24 and 25 to the suspension holes 27a and 28a, the attachment member 26 is suspended from the bottom 2a of the first descending escalator 2A. In FIG. 2, the camera housing cylinder 20 and the attachment member 26 are shown in an axial cross section including the center line of the camera housing cylinder 20.

  A screw hole 27b penetrating in the radial direction (front-rear direction) of the camera housing cylinder 20 is formed below the suspension hole 27a in the suspension section 27, and below the suspension hole 28a in the suspension section 28, the camera housing cylinder 20 is provided. A screw hole 28b penetrating in the radial direction (front-rear direction) is formed (FIG. 3). The camera housing cylinder 20 is screwed to the suspension portions 27 and 28 by these screw holes 27b and 28b and 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 shaking of the camera housing cylinder 20 is normally suppressed, and passengers When the camera comes into contact with the camera housing cylinder 20, the impact given to the passenger is reduced.

  The first camera support member 30 is positioned below the attachment member 26 in the camera housing cylinder 20. The first camera support member 30 is a groove-shaped member and extends in the radial direction of the camera housing cylinder 20 and is coupled to the coupling portion 29 of the mounting member 26 so as to be rotatable in the circumferential direction of the camera housing portion 20. And a position where the first surveillance camera 21 is sandwiched between the first attachment portion 31 and a camera attachment portion 32 that extends downward from one end of the first attachment portion 31 in the radial direction and to which the first surveillance camera 21 is attached. And a second coupling portion 33 coupled to the second camera support member 40. The first camera support member 30 is a groove-shaped member having the first coupling portion 31 and the second coupling portion 33 as opposite sides. The coupling between the coupling portion 29 of the mounting member 26 and the first coupling portion 31 of the first camera support member 30 is performed by screwing using a bolt 50 and a nut 51. The first camera support member 30 and the mounting member 26 can be relatively rotated in the circumferential direction of the camera housing cylinder 20 by weakening the tightening degree of the screw fastening, and the tightening degree of the screw fastening is strengthened. The rotation becomes impossible.

  The second camera support member 40 is a groove-shaped member having the same shape and dimensions as the first camera support member 30, and is positioned below the first camera support member 30 in the camera housing cylinder 20. The second camera support member 40 has, on one of the opposite sides of the groove shape, a coupling portion 41 coupled to the second coupling portion 33 of the first camera support member 30 so as to be rotatable in the circumferential direction of the camera housing portion. . The second coupling portion 33 of the first camera support member 30 and the coupling portion 41 of the second camera support member 40 are coupled by screwing using a bolt 52 and a nut 53. By weakening the tightening degree of the screw fastening, the first camera support member 30 and the second camera support member 40 can be relatively rotated in the circumferential direction of the camera housing cylinder 20, and the tightening degree of the screw fastening is strengthened. This makes the rotation impossible. The second camera support member 40 has a camera attachment portion 42 that extends downward from one end of the coupling portion 41 and to which the second surveillance camera 22 is attached.

  The mounting member so that the center of the camera housing cylinder 20 in the radial direction, the rotation center of the first camera support member 30 with respect to the mounting member 26, and the rotation center of the second camera support member 40 with respect to the first camera support member 30 are substantially coaxial. 26, and the first coupling portion 31 of the first camera support member 30, and the second coupling portion 33 of the first camera support member 30 and the coupling portion 41 of the second camera support member 40. Screwed.

  As shown in FIG. 4, the first monitoring camera 21 and the second monitoring camera 22 have the same size and shape. The first surveillance camera 21 has a substantially cubic case 21a and a dome-shaped lens cover 21b provided so as to protrude from one surface of the case 21a. A rotation support portion 60 is provided on the surface of the case 21a opposite to the lens cover 21b side. The rotation support portion 60 is provided so as to protrude from the case 21a, and is positioned between the two protruding pieces 61 (only one shown), and is inserted between the protruding pieces 61 and screwed with a screw 65 or the like. And a fixing member 62. The second surveillance camera 22 also has a case 22a and a lens cover 22b similar to the first surveillance camera 21, and the case 22a of the second surveillance camera 22 is provided with a rotation support portion 70 similar to the rotation support portion 60. It has been. In FIG. 4, 71 is one of two projecting pieces provided on the case 22a, and 72 is a fixing member screwed to the projecting piece 71 with a screw 75 or the like.

  A horizontally long hole 32 a is formed in the camera mounting portion 32 of the first camera support member 30. Screws 63 and 64 are inserted through the horizontally long hole 32a. Two screw holes (not shown) corresponding to the screws 63 and 64 are formed in the fixing member 62 of the rotation support portion 60 provided in the first monitoring camera 21. In other words, the first surveillance camera 21 is a screw inserted into the first oblong hole 32a with the first camera support member 30 inserted between the first coupling portion 31 and the second coupling portion 33 from the case 21a side. Screwed by 63 and 64 and two screw holes of the fixing member 62. In the rotation support part 60, the first monitoring camera 21 can be rotated in the vertical direction with respect to the first camera support member 30 by weakening the tightening degree of the screwing between the protruding piece 61 and the fixing member 62. The first surveillance camera 21 cannot be turned in the vertical direction with respect to the first camera support member 30 by increasing the tightening degree of the screwing.

  Similar to the first monitoring camera 21, the second monitoring camera 22 is connected to the camera mounting portion 42 of the second camera support member 40 with screws 73 and 74 inserted into the horizontally long hole 42 a and a fixing member 72 of the rotation support portion 70. Are screwed by two screw holes (not shown). That is, also in the rotation support part 70, the second monitoring camera 22 can be rotated in the vertical direction with respect to the second camera support member 40 by weakening the tightening degree of the screwing between the protruding piece 71 and the fixing member 72. Thus, the second surveillance camera 22 cannot be rotated in the vertical direction with respect to the second camera support member 40 by strengthening the screw fastening.

  As shown in FIG. 1, a recording device 82 is provided on the outer deck board 6 of the first ascending escalator 1A. A cable 81 for supplying power to the first monitoring camera 21 and the second monitoring camera 22 and transmitting / receiving an image signal, a control signal, and the like includes a bottom 2a of the first descending escalator 2A and an outer deck board of the first ascending escalator 1A. 6 to the recording device 82.

  In the monitoring apparatus according to the present embodiment configured as described above, the respective visual fields of the first monitoring camera 21 and the second monitoring camera 22 are adjusted as follows.

  One of the first monitoring camera 21 and the second monitoring camera 22, for example, the horizontal direction of the viewing angle α1 (FIG. 5) of the first monitoring camera 21, and the first camera support member 30 with respect to the mounting member 26 is accommodated in the camera. Adjustment is performed by rotating the cylinder 20 in the circumferential direction. Further, the orientation of the viewing angle β1 (FIG. 6) in the vertical direction of the first monitoring camera 21 is adjusted by rotating the first monitoring camera 21 in the vertical direction with respect to the first camera support member 30. Thereby, for example, as shown in FIGS. 5 and 6, the viewing angles α1 and β1 of the first monitoring camera 21 are set to the direction of the landing 1a of the first ascending escalator 1A, and the field of view of the first monitoring camera 21 is set. The entire platform 1a and the steps 3 and the movable handrail 5 in a range from the substantially same position as the camera housing cylinder 20 to the platform 1a in the front-rear direction of the first ascending escalator 1A are accommodated in the corner.

  The other of the first monitoring camera 21 and the second monitoring camera 22, that is, the horizontal direction of the viewing angle α <b> 2 (FIG. 5) of the second monitoring camera 22, Adjustment is performed by rotating the camera housing cylinder 20 in the circumferential direction. Further, the direction of the viewing angle β2 (FIG. 6) in the vertical direction of the second monitoring camera 22 is adjusted by rotating the second monitoring camera 22 up and down with respect to the second camera support member 40. Thereby, for example, as shown in FIGS. 5 and 6, the orientation of the viewing angles α2 and β2 of the second monitoring camera 22 is set to the exit 1b direction of the first ascending escalator 1A, and the second monitoring camera 22 The entire landing 1b and the entire steps 3 and the entire movable handrail 5 in the range from the substantially same position as the camera housing cylinder 20 to the landing 1b in the front-rear direction of the first ascending escalator 1A are accommodated within the viewing angle.

  In the building, the first ascending escalator 1A and the first descending escalator 2A are also applied to the narrow angle portion 7 other than the narrow angle portion 7 formed between the first ascending escalator 1A and the first descending escalator 2A. The first surveillance camera 21 and the second surveillance camera 22 are provided in the same manner as in the case of the narrow angle portion 7 formed between the first surveillance camera 21 and the second surveillance camera 22.

  In FIG. 2, FV is the field of view of the monitoring camera 22, 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 100 inside the camera housing cylinder 20. The light shielding member 100 is formed in a film shape, and is located by dividing the space inside the camera housing cylinder 20 in the axial direction of the camera housing section 20. The light shielding member 100 is provided close to a position A where the lower edge of the visual field FV in the vertical direction of the surveillance camera 22 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 100 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. 7, 201 is a space inside the camera housing cylinder 20 (hereinafter referred to as “in-cylinder space”), 202 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 201 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 extra-cylinder space 202. Since the refractive index na of air is larger than the refractive index nb of the wall 20a, total reflection at the boundary surface between the wall 20a and the extra-cylinder space 202 does not occur. Of the reflected light R2 and the transmitted light R3, the reflected light R2 may enter the visual field FV of the monitoring camera 22. That is, as shown in FIG. 8, the external light R that has entered the camera housing cylinder 20 may reach the field of view FV by repeating total reflection at the wall 20a in the in-cylinder space 201. The light blocking member 100 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 the vicinity of the movable warning body 9 which is a kind of protective body in the narrow angle portion 7, and the first monitoring camera 21 is provided in the camera housing cylinder 20. And a second surveillance camera 22 is provided. Thereby, a plurality of surveillance cameras can be installed like the first surveillance camera 21 and the second surveillance camera 22 without being affected by the structure and finish of the building. Furthermore, the first surveillance camera 21 and the second surveillance camera 22 after installation do not impair the aesthetics of the building and do not disturb passengers.

  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 9a having the same shape as the camera housing cylinder 20. It is possible to make it difficult to give an uncomfortable feeling that the first monitoring camera 21 and the second monitoring camera 22 are specially provided.

  According to the monitoring apparatus according to the present embodiment, the mounting member 26 is weakened by tightening the screw fastening that connects the coupling portion 29 of the mounting member 26 and the first coupling portion 31 of the first camera support member 30. On the other hand, the direction of the viewing angle of the first monitoring camera 21 can be easily adjusted by rotating the first camera support member 30 in the circumferential direction of the camera housing cylinder 20. Further, the tightening degree of the screwing that couples the second coupling portion 33 of the first camera support member 30 and the coupling portion 41 of the second camera support member 40 is weakened so that the first camera support member 30 is 2 The viewing angle direction of the second monitoring camera 22 can be easily adjusted by rotating the camera support member 40 in the circumferential direction of the camera housing cylinder 20. Thus, the viewing angle of one of the first monitoring camera 21 and the second monitoring camera 22 can be set to the landing direction of the escalator, and the other viewing angle can be set to the landing direction of the escalator. Even in such a limited installation location, it is easy to set the field of view of the first monitoring camera 21 and the second monitoring camera 22 so as to include a range sufficient for monitoring the escalator.

  In the monitoring apparatus according to the present embodiment, the first monitoring camera 21 can be rotated in the vertical direction by the rotation support unit 60 with respect to the first camera support member 30. The direction of the vertical direction can be adjusted, and the second monitoring camera 22 can be rotated in the vertical direction by the rotation support unit 70 with respect to the second camera support member 40, so that the viewing angle of the second monitoring camera 22 can be adjusted. The vertical direction can be adjusted. As a result, the field of view of the entire first and second surveillance cameras 21 and 22 can be adjusted by adjusting the escalator's tilt angle, the shape and dimensions of the escalator such as the distance from the landing to the landing, the first surveillance camera, and the second surveillance camera. Depending on the arrangement, it can be done finely.

  In the monitoring apparatus according to the present embodiment, the camera is accommodated toward the monitoring camera 22 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 22 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 100 and therefore does not enter the visual field FV of the monitoring camera 22. Thereby, the incidence of external light on the visual field of the monitoring cameras 21 and 22 can be reduced.

  In the monitoring device according to the present embodiment, since the camera housing cylinder 20 and the light shielding member 100 are made of different materials, the camera housing cylinder 20 and the light shielding member 100 do not melt and adhere to each other at the contact portion.

  In the monitoring apparatus according to the present embodiment, the first monitoring camera 21, the second monitoring camera 22, the first camera support member 30, and the second camera support member 40 are at a height that can be reached by the passengers. Since it is accommodated in the accommodation cylinder 20, a contact with a passenger can be prevented. In other words, it is possible to prevent mischief by passengers and to prevent injury from contact.

  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 located behind the movable warning body 9 and aligned with the movable warning body 9 in the front-rear direction. However, the tube portion 9a provided integrally with the movable warning body 9 may be a camera housing tube.

  In the monitoring apparatus according to the above-described embodiment, there are two monitoring cameras, the first monitoring camera 21 and the second monitoring camera 22, provided in the camera housing tube 20, but the viewing angle of the monitoring camera to be installed is large. Depending on the situation, two or more surveillance cameras may be provided. For example, when a third surveillance camera is provided, a camera support member having the same shape and dimensions as the first camera support member 30 is used as the second camera support member 40, and the same as the first camera support member 30 and the second camera support member 40. Then, the third surveillance camera may be attached to the camera support member.

  In the escalator monitoring apparatus according to the above-described embodiment, the first monitoring camera 21 and the second monitoring camera 22 are 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. 9, 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. A 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 first monitoring camera 21 and the second monitoring camera 22 may be disposed in the camera housing cylinder 20.

  Moreover, the cylinder part 93 is provided in the rear end of the fixed protector 8 shown in FIG. The narrow angle portion 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.

1A 1st ascending escalator 1a landing 1b landing 1B 2nd ascending escalator 2A 1st descending escalator 2B 2nd descending escalator 2 storage part 2a bottom 3 step 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 21 first surveillance camera 21a case 21b lens cover 22 second surveillance camera 22a case 22b lens cover 23 base member 23a plate portion 23b, 23c annular support portion 24, 25 ring member 26 attachment members 27, 28 Suspension part 27a, 28a Suspension hole 27b, 28b Screw hole 27c, 28c Screw 29 Joint part 30 First camera support member 31 First joint part 32 Camera attachment part 32a Horizontal elongated hole 33 Second joint part 40 Second camera support member 41 Coupling Part 42 Camera mounting part 42a Horizontally long hole 50 Bolt 51 Nut 52 Bolt 53 Nut 60 Rotating support part 61 Projection piece 62 Fixing member 63, 64 Screw 65 Screw 70 Rotation support part 71 Projection piece 72 Fixing member 73, 74 Screw 80 Wire 81 Cable 82 Recording device 90 Ri escalator 91 ceiling 92 narrow angle portion 93 cylindrical portion 100 light-blocking member 201 cylinder space 202 out-of-cylinder space

Claims (6)

A narrow-angled part formed between the ceiling of the lower floor and the moving handrail of the escalator, or between the bottom of one escalator of two adjacent escalators and the moving handrail of the other escalator Provided for an escalator provided in a formed narrow angle portion and having a protector for preventing a passenger from being caught in the narrow angle portion during the ascending operation of the escalator. In the monitoring device of the escalator to be monitored,
A camera housing tube provided in a posture extending in the vertical direction integrally with the protector on the rear end side of the protector when the upward direction of the escalator is the front direction, or in the vicinity of the protector; The plurality of monitoring cameras are provided in the camera housing tube side by side in the vertical direction,
Provided with 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,
A first surveillance camera and a second surveillance camera as the plurality of surveillance cameras; an attachment member attached to the ceiling of the lower floor or the bottom of the one escalator and inserted into the camera housing cylinder;
A first camera support member located below the mounting member in the camera housing tube;
A second camera support member positioned below the first camera support member in the camera housing cylinder;
The first camera support member extends in a radial direction of the camera housing cylinder and is coupled to the mounting member so as to be rotatable in a circumferential direction of the camera housing cylinder, and the first coupling in the radial direction. The first surveillance camera is positioned between the first attachment portion and the camera attachment portion to which the first surveillance camera is attached extending downward from one end of the portion, and is coupled to the second camera support member A second coupling portion,
The second camera support member is coupled to the second coupling portion of the first camera support member so as to be rotatable in the circumferential direction of the camera housing cylinder, and extends downward from one end of the coupling portion. And an escalator monitoring device comprising: a camera mounting portion to which the second monitoring camera is mounted. In the escalator monitoring apparatus according to claim 2,
The attachment member is located opposite to the camera housing cylinder in the radial direction and is suspended from the ceiling of the lower floor or the bottom of the one escalator, and the first camera that connects these suspension parts. A coupling portion coupled to the first coupling portion of the support member;
The camera housing tube is fixed to the pair of suspension portions by screws, and the first camera support member is a groove-shaped member having the first coupling portion and the second coupling portion as opposite sides,
The second camera support member is a member having the same shape and the same size as the first camera support member, and one of the opposite sides is a coupling portion coupled to the second coupling portion of the first camera support member,
The coupling portion of the mounting member and the first coupling portion of the first camera support member are coupled by screwing, and the coupling portion of the first camera support member and the coupling portion of the second camera support member are screws. An escalator monitoring device characterized by being connected by a stopper. In the escalator monitoring device according to claim 2 or 3,
A rotation support portion is provided between the first monitoring camera and the camera mounting portion of the first camera support member to enable the first monitoring camera to rotate in the vertical direction with respect to the first camera support member. And
A rotation support portion is provided between the second monitoring camera and the camera mounting portion of the second camera support member to enable the second monitoring camera to rotate in the vertical direction with respect to the second camera support member. An escalator monitoring device characterized by that. 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 so as to be divided into two. In the escalator monitoring apparatus 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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