JP6173177B2 - Mobile handrail deterioration diagnosis device - Google Patents

Description

  The present invention relates to a moving handrail deterioration diagnosing device for diagnosing damage to moving handrails provided on passenger conveyors such as escalators and moving walkways.

  As this type of technology, for example, an invention described in JP 2012-158411 A (Patent Document 1) is known. The invention described in Patent Document 1 includes an inspection unit that is replaced with a rail element that forms a part of at least one guide rail and is detachably attached to a rail support member. The photographing unit includes a photographing unit for photographing the back surface of the rail, and the photographing unit is continuously or intermittently provided on the back surface of the moving handrail with the inspection unit attached to the rail support member and the driving unit moving the moving handrail. It is characterized by an inspection device for moving handrails that is photographed automatically.

JP 2012-158411 A

  In the technique described in Patent Document 1, after the operator removes the movable handrail from the guide rail, the inspection unit on which the rail element constituting the guide rail and the camera for photographing the back surface of the movable handrail are mounted is replaced. Since it is necessary to install the moving handrail on the inspection unit again, it takes time. Further, when the passenger conveyor is operated, the moving handrail moves up and down and left and right at the photographing position of the inspection unit. Therefore, the image cannot always be acquired at the same position, and the accuracy of the deterioration diagnosis cannot be guaranteed.

  Therefore, the problem to be solved by the present invention is to simplify the installation, reduce the work time, and ensure the diagnostic accuracy of the moving handrail deterioration diagnostic apparatus.

In order to solve the above problems, one aspect of the present invention is a state in which a moving handrail of a passenger conveyor is operated by being connected to a frame embedded between the lower floor of the upper floor and the floor of the lower floor and spanned therebetween. Then, in the moving handrail deterioration diagnosis device that photographs the bottom surface of the recessed portion of the moving handrail using a camera and diagnoses the deterioration state of the moving handrail from the captured image of the camera, a camera mounting mechanism for fixing the camera Is composed of first to third members that can be divided, one of which is a third member for fixing the camera, and the other two are first and second guides the camera mounting mechanism along a moving handrail. A second member, wherein the first and second members are respectively connected to both longitudinal ends of the third member, and the camera mounting mechanism includes the frame and the first or second member. In a straight line Characterized in that attached to the follow-up possible to the frame on the bottom surface of the recess of the moving handrail by attaching members.

According to one aspect of the present invention , it is possible to simplify the installation, reduce the work time, and guarantee the diagnostic accuracy of the moving handrail deterioration diagnostic apparatus. Note that problems, configurations, and effects other than those described above will be clarified in the following description of embodiments.

It is a perspective view which shows the outline | summary structure of the escalator as a passenger conveyor to which the moving handrail deterioration diagnostic apparatus which concerns on one Embodiment of this invention is attached. It is a side view which shows schematic structure of the escalator of FIG. It is a perspective view which shows the outline | summary of the state which attached the mobile handrail deterioration diagnostic apparatus which concerns on one Embodiment of this invention to the escalator. It is a perspective view which shows the division | segmentation structure of the moving handrail deterioration diagnostic apparatus shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an outline of an escalator as a passenger conveyor to which a moving handrail deterioration diagnosis apparatus according to an embodiment of the present invention is attached. As the passenger conveyor, for example, there is a moving sidewalk in addition to the escalator. In the present embodiment, the escalator will be described as an example.

  In the figure, the escalator 1 includes a step 2 on which a passenger rides and a moving handrail 3 that moves in the same direction as the traveling direction of the step 2. The moving handrail 3 is provided on both the left and right sides of Step 2 with respect to the traveling direction of Step 2.

The moving handrail 3 is configured in an endless manner and circulates along a balustrade 4 provided on both sides of the step 2 in parallel with the moving direction of the step 2. That is, the moving handrail 3 moves in the same direction as that of the step 2 on the upper side of the balustrade 4 and moves downward in an arc shape when reaching the end of the balustrade 4 so that the skirt guard or the like is upside down. It is drawn into the inside of the deck 5 equipped with. Then, it passes through the deck 5 to reach the opposite end of the balustrade 4 and goes out of the deck 5 in an upside down state, moves upward in an arc shape, and returns to the upper side of the balustrade 4. . Also,
FIG. 2 is a diagram showing a schematic configuration of the escalator 1 of FIG. 1 and shows a state viewed from the side. The escalator 1 includes a frame 6 that is embedded under the upper floor and the lower floor and is stretched between them. A chain (not shown) is wound around a sprocket 7 that is driven to rotate by a driving device (not shown) provided below the upper floor and a driven sprocket 8 provided below the floor on the lower floor, and a plurality of chains shown in FIG. Step 2 is provided endlessly.

  The moving handrail 3 is driven by a terminal gear 9 for driving the moving handrail as shown in FIG. The terminal gear 9 is connected by the sprocket 7 and the chain 10 so as to rotate synchronously. Accordingly, the handrail 3 and the step 2 are driven in the same direction at the same speed by receiving the driving force from the sprocket 7.

  A large number of various components of the escalator 1 are arranged in the deck 5 and the frame 6, and it is difficult to install any device inside the deck 5, but it is slack in the moving handrail 3 as shown in FIG. 2. There is a moving handrail slack portion T provided with. The movable handrail sagging portion T is supported by the movable handrail support guide 11, and the movable handrail 3 having a concave cross section faces the concave portion, which is the canvas surface of the movable handrail 3, and has a space above it. ing.

In contrast to the escalator 1 having such a configuration, the moving handrail deterioration diagnosis device 12 according to the present embodiment is attached to a frame 6 that is a non-operating part constituting the escalator 1. The moving handrail deterioration diagnosing device 12 performs imaging for deterioration diagnosis of the moving handrail 3 at the moving handrail slack portion T on the return path side of the moving handrail 3 moving in the deck 5 and the frame 6.

  FIG. 3 is a perspective view of a main part of the moving handrail showing a state in which the moving handrail deterioration diagnosis apparatus according to the present embodiment is attached to the escalator 1. As shown in FIG. 3, the moving handrail deterioration diagnosis device 12 uses the camera 13 to apply the canvas surface (recessed bottom surface) 3 h in the recessed portion of the moving handrail 3 while the moving handrail 3 of the escalator 1 is operated. The captured image of the camera 13 is sent to the data processing device 14. In the data processing device 14, the deterioration state of the moving handrail 3 is diagnosed from the captured image of the camera 13 that has been sent.

  Such a handrail deterioration diagnosis device 12 includes a camera 13, an illumination 15, a camera mounting mechanism 16, an arm type bracket 17, and a data processing device 14. The camera 13 photographs the state of the concave bottom surface 3 h of the moving handrail 3, and the illumination 15 is arranged in an annular shape on the outer peripheral side of the lens of the camera 13 and illuminates the concave bottom surface 3 h side of the moving handrail 3. The camera mounting mechanism 16 has a three-part structure in which the camera 13 and the illumination 15 are fixed. The arm type bracket 17 functions as an attachment member of the camera 13, and one end 17 a is attached to the frame 6 and the other end 17 b is attached to the camera attachment mechanism 16.

  Also, a clamp 17c is provided at one end 17a of the arm bracket 17, and is fixed to the frame 6 using this clamp 17c. The other end 17b is provided with a screw 17d, and is attached to either the first or second bracket 18 or 19 of the camera mounting bracket mechanism described later using the screw 17d. Screwing is performed through any one of the screw holes 18a and 19a provided in the base portions 18b and 19b. FIG. 3 shows an example in which the arm bracket 17 is attached to the first bracket 18 and both are connected.

  As shown in FIG. 3, the moving handrail deterioration diagnosis device 12 of the present embodiment connects the camera 13 of the moving handrail deterioration diagnosis device 12 to a data processing device 14 such as a PC via a connection line as shown in FIG. The data processing device 14 performs the photographing operation of the camera 13 and the storage of the photographed image. And the camera 13 is installed in the recessed part side of the back surface of the moving handrail 3, and the canvas surface (recessed bottom face) 3h is image | photographed. The photographed image is sent to the data processing device 14, and the program of the data processing device 14 is used to check the deterioration and damage state of the canvas based on the image data for each piece of the image by software. Determine whether it is degraded or normal.

  In the example shown in FIG. 3, the moving handrail deterioration diagnosis device 12 and the data processing device 14 are connected by a cable 14 a and data is transmitted. However, data can be transmitted wirelessly. In addition, the deterioration of the moving handrail 3 or the determination of a normal product may not be performed by a program, but a maintenance person may visually check and determine a captured image.

  4 is an exploded perspective view showing the camera mounting mechanism 16 and the arm type bracket 17 of the moving handrail deterioration diagnosis device 12 in FIG. In FIG. 4, the camera mounting mechanism 16 is divided into three brackets of first to third brackets 18, 19, and 20. The first and second brackets 18 and 19 are moving handrail tracking brackets, and the third bracket 20 is a camera and illumination mounting bracket for fixing the camera 13 and the illumination 15. The third bracket 20 has first and second brackets 18 and 19 attached to both ends in the longitudinal direction, respectively, and the three brackets 18, 19 and 20 are integrated to form the camera attachment mechanism 16.

  First and second rollers 21 a and 21 b are attached to the first bracket 18 to rotate following the concave inner surfaces 3 a and 3 b of the moving handrail 3. The first and second rollers 21a and 21b are rotatably supported by a shaft hanging downward from the base 18b of the second bracket 18, and are elastically moved to one of the concave inner side surfaces 3a and 3b by a spring 21c. It has been. Further, the support member 18c bent downward from the base 18b of the first bracket 18 is provided with first and second wheels 22a and 22b so as to be rotatable, and when the handrail deterioration diagnosis device 12 is installed. The movable handrail 3 rolls in contact with the concave bottom surface 3h.

  Similarly to the first bracket 18, the second bracket 19 is provided with third and fourth rollers 26 a and 26 b that rotate following the concave inner surfaces 3 a and 3 b of the movable handrail 3. The third and fourth rollers 26a and 26b are rotatably supported by a shaft hanging downward from the base 19b of the second bracket 19, and are elastically moved to one of the concave inner surfaces 3a and 3b by a spring 26c. It has been. Further, the support member 19c bent downward from the base 19b of the second bracket 19 is provided with the third and fourth wheels 27a and 27b so as to be rotatable, and when the moving handrail deterioration diagnosis device 12 is installed. The movable handrail 3 rolls in contact with the concave bottom surface 3h.

  The third bracket 20 is provided with first and second attachment portions 20a and 20b for attaching the first and second brackets 18 and 19 to end portions in the longitudinal direction, respectively. The first mounting portion 20a is provided with first and second support rails 23a and 23b on both side surfaces, and the same third and fourth support rails 28a and 28b on both side surfaces of the second mounting portion 20b. 28b is installed. In any case, the first and second brackets 18 between the first and second support rails 23a and 23b, the third and fourth support rails 28a and 28b, and the first and second mounting portions 20a and 20b. Clearances 32 and 33 for inserting 19 main body upper portions 18d and 19d are formed.

  When the first and second brackets 18 and 19 are attached to the third bracket 20, the first and second brackets are formed in the gaps between the support rails 23a, 23b, 28a, 28b and the attachment portions 20a, 20b. The main body upper portions 18d and 19d of the brackets 18 and 19 are inserted from below in the drawing. The first and second fixing pins 24 and 29 provided on the first and second brackets 18 and 19 are provided on the first and second attachment portions 20 a and 20 b of the third bracket 20. And it inserts in the 2nd insertion holes 25a and 25b, respectively, positions and fixes. Although the second insertion hole 25b is indicated by a broken line in FIG. 4, it is provided at the same position as the first insertion hole 25a so that the second fixing pin 29 can be inserted. A notch 18e provided in the upper part 18d of the main body of the first bracket 18 is for avoiding interference with a camera fixing screw 31 described later.

  The illumination 15 is attached to the outer periphery of the lens portion of the camera 13, and the camera 13 is attached to the inside of the first attachment portion 20 a of the third bracket 20 by a camera fixing screw 31. Note that an opening is formed on the upper surface of the third bracket 20 in order to release the heat generated by the illumination 15.

  The third bracket is provided with a camera focal length adjustment screw 30, and the focal length can be adjusted by moving the camera 13 in the vertical direction by screw adjustment. That is, when the focal length of the camera 13 is not correct, the camera focal length adjustment screw 30 is adjusted to move the camera 13 in the vertical direction and adjust the focal length of the lens. The camera focal length adjusting screw 30 is installed so as to be adjustable from the opening on the upper surface of the third bracket 20 so as not to interfere even when the movable handrail 3 is in an operating state.

  In the present embodiment, when image data such as a two-dimensional bar code is placed in the shooting range of the camera 13, the image data is taken into the data processing device 14, frequency analysis is performed, and a preset predetermined threshold value is exceeded. Judge that the camera is in focus. Therefore, the focal length of the camera 13 is adjusted by the camera focal length adjusting screw 30 when the moving handrail diagnostic device 12 is attached to the moving handrail 3 in order to perform the deterioration diagnosis. Then, since the focus of the camera 13 is determined when a certain dark value is exceeded, the focus position is set at that position and shooting is performed.

  A camera fixing screw 31 provided on the third bracket 20 is for fixing the camera 13 to the third bracket 20. The camera fixing screw 31 is for fixing the camera focal length adjusting screw 30 after adjusting the focus (focal length) of the camera 13 with the camera focal length adjusting screw 30 and then fixing the camera 13. Thus, after the focus adjustment is completed, the camera 13 is fixed in that state, and it becomes possible to prevent the camera 13 from shaking, and camera shake can be suppressed. As a result, high-accuracy imaging can be performed, and the diagnostic accuracy of the moving handrail degradation diagnostic device 12 can be guaranteed.

  As described above, in this embodiment, the camera mounting mechanism 16 is divided into the camera and the third bracket (lighting mounting bracket) 20 and the first and second brackets (moving handrail following brackets) 18 and 19. 3 can be divided and inserted into a narrow gap as shown in FIG. Furthermore, after dividing and inserting, it can connect easily on the recessed part bottom face 3h of the handrail 3 of a movement.

  Further, dividing the camera mounting mechanism (camera mounting bracket) 16 into three in this way makes it possible to reduce the bulk at the time of storage, so that the handrail deterioration diagnosis device 12 can be easily transported.

  Furthermore, the escalator 1 is driven by installing the fixing pins 24 and 29 on the side surfaces of the first and second brackets (moving handrail following brackets) 18 and 19 so as to be parallel to the longitudinal direction of the moving handrail. Even if the movable handrail 3 operates inside the deck 5, it does not interfere.

As described above, according to the present embodiment, the following effects can be obtained.
(1) In a state where the moving handrail 3 of the escalator 1 (passenger conveyor) is operated, the bottom surface 3h of the recessed portion of the moving handrail 3 is photographed using the camera 13, and the moving hand is taken from the photographed image of the camera 13. In the moving handrail deterioration diagnosis device 12 for diagnosing the deterioration state of the slide 3, the camera mounting mechanism 16 for fixing the camera 13 includes first to third brackets 18, 19, and 20 (three members) that can be divided. The third bracket 20 (one of them) is a member for fixing the camera 13, and the first and second brackets 18 and 19 (the other two) move the camera mounting mechanism 16 along the moving handrail 3. It is the structure which is a member to guide. As a result, when the gap between the frame 6 of the escalator 1 and the moving handrail 3 is narrow, the maintenance worker arranges the camera mounting mechanism 16 in the state where the camera mounting mechanism 16 is divided into three members 18, 19, 20 at the photographing position. Thereafter, the divided members 18, 19, 20 are connected and integrated, so that the camera can be installed reliably and efficiently.

  At that time, the third bracket 20 for fixing the camera 13 and the first and second brackets 18 and 19 for guiding the camera 13 can be divided by dividing the functions, so that the assembly is easy and the portability is excellent. Become.

  Further, the movable handrail 3 is removed, and the concave bottom surface (the canvas surface) 3h of the movable handrail is inspected without replacing the inspection unit on which the rail element and the camera constituting the guide rail of the movable handrail 3 are mounted. Therefore, the working time can be shortened and the working efficiency can be improved.

(2) The third bracket 20 (fixing member) and the first and second brackets 18 and 19 (guide members) are connected to the first and second brackets 18 and 19 (one member). The first and second fixing pins 24 and 29 (fixing pins) are provided, and the first and second fixing pins 24 and 29 are inserted into the third bracket 20 (the other member). Two insertion holes 25a, 25b, and the first and second brackets 18, 19 (one member) by inserting the first and second fixing pins 24, 29 (fixing pins) into the insertion holes 25a, 25b. ) And the third bracket 20 (the other member) are connected. Thereby, even when the gap between the frame 6 of the escalator 1 (passenger conveyor) and the moving handrail 3 is narrow, the camera 13 can be easily and reliably installed by pin coupling.

(3) The first to third brackets 18, 19, and 20 (three members) include first and second support rails 23a and 23b and third and fourth support rails 28a and 28b. 1 bracket 20 (a member having a support rail), the first and second support rails 23a and 23b, the third and fourth support rails 28a and 28b, and the first bracket 20 main body. And the first and second brackets 18 and 19 (members inserted and connected to the support rail). As a result, the first and second brackets 18 and 19 can be easily assembled to the third bracket 20. At this time, if the first and second fixing pins 24 and 29 are inserted into the first and second insertion holes 25a and 25b and joined together, the camera mounting mechanism 16 can be assembled easily and accurately, and work efficiency can be improved. It is possible to improve.

(4) Since the third bracket 20 (member) for fixing the camera 13 is provided with an adjustment screw 30 for adjusting the position of the camera 13 and adjusting the focal length of the camera 13, the camera 13 is The focal length of the photographed image can be adjusted even after installation at the photographing position. Thereby, the work efficiency can be improved and the canvas surface (recess bottom surface) 3h in the recess of the movable handrail 3 can be photographed with high accuracy.

(5) Since the camera fixing screw 31 (fixing screw) for fixing the camera 13 to the third bracket 20 is provided on the third bracket 20 (member) that fixes the camera 13, the adjustment screw 30. After adjusting the focal length with, the camera shake can be suppressed by fixing with the camera fixing screw 31. As a result, the diagnostic accuracy of the moving handrail degradation diagnostic device 12 can be guaranteed.

  In the description of the effects in the above-described embodiment, the constituent elements in the claims are indicated in parentheses for each part of the present embodiment, or a reference numeral is attached, and the correspondence between the two is clarified.

  Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention, and all the technical matters included in the technical idea described in the claims are all included. The subject of the present invention. The above embodiment shows a preferable example, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in this specification, These are included in the technical scope described in the appended claims.

1 Escalator 3 Moving handrail 3h Canvas surface (bottom surface of recess)
DESCRIPTION OF SYMBOLS 12 Moving handrail deterioration diagnostic apparatus 13 Camera 14 Data processing apparatus 15 Illumination 16 Camera mounting mechanism 17 Arm type bracket 18 First bracket 19 Second bracket 20 Third bracket 23a First support rail 23b Second support rail 24 first fixing pin 25a first insertion hole 25b second insertion hole 28a third support rail 28b fourth support rail 29 fixing pin 30 camera focal length adjusting screw 31 camera fixing screw

Claims (5)

Using the camera, the bottom surface of the recessed portion of the moving handrail is embedded in the lower floor of the upper floor and connected to the frame spanned between them, and the moving handrail of the passenger conveyor is operated. In the moving handrail deterioration diagnosis device that takes an image and diagnoses the deterioration state of the moving handrail from an image captured by the camera,
The camera mounting mechanism for fixing the camera is composed of first to third members that can be divided,
One of which is a third member for fixing the camera, a first and second members are two other guiding along the camera attachment mechanism to the moving handrail,
The first and second members are respectively connected to both longitudinal ends of the third member;
The camera attachment mechanism is attached to the frame so as to be able to follow the bottom surface of the concave portion of the moving handrail by an attachment member that linearly connects the frame and the first or second member. A moving handrail deterioration diagnosis device characterized by the above. In the handrail deterioration diagnostic apparatus according to claim 1,
The third member to be fixed and the first or second member to be guided are each provided with a fixing pin in one member and an insertion hole into which the fixing pin is inserted into the other member,
A moving handrail deterioration diagnosis apparatus, wherein the fixing pin is inserted into the insertion hole to connect the one member and the other member. In the moving handrail deterioration diagnostic apparatus according to claim 1 or 2,
The moving handrail deterioration diagnosis apparatus, wherein the three members include a member provided with a support rail and a member inserted into and connected to the support rail. In the handrail deterioration diagnostic apparatus according to any one of claims 1 to 3,
An apparatus for diagnosing moving handrail deterioration, characterized in that an adjustment screw for adjusting the position of the camera and adjusting the focal length of the camera is provided on a third member for fixing the camera. In the handrail deterioration diagnostic apparatus according to claim 4,
A moving handrail deterioration diagnosis apparatus, wherein a third screw for fixing the camera is provided with a fixing screw for fixing the camera to the member.