JP5221588B2 - Deterioration diagnosis device for moving handrails of passenger conveyors - Google Patents

Deterioration diagnosis device for moving handrails of passenger conveyors Download PDF

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JP5221588B2
JP5221588B2 JP2010092329A JP2010092329A JP5221588B2 JP 5221588 B2 JP5221588 B2 JP 5221588B2 JP 2010092329 A JP2010092329 A JP 2010092329A JP 2010092329 A JP2010092329 A JP 2010092329A JP 5221588 B2 JP5221588 B2 JP 5221588B2
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moving handrail
radiation
light source
unit
box
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JP2010092329A
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JP2011219244A (en
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法美 小平
昌平 酒井
友治 大西
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株式会社日立ビルシステム
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Description

  The present invention relates to a technique for diagnosing damage to a moving handrail provided on a passenger conveyor such as an escalator or a moving sidewalk, and more particularly to an apparatus for diagnosing internal deterioration of a moving handrail.

  Conventionally, a device for diagnosing the presence or degree of damage to steel cords embedded in moving handrails for passenger conveyors such as escalators and moving walkways (hereinafter referred to as moving handrail deterioration diagnosis device) For example, a device is used that irradiates a moving handrail with radiation and displays a transmitted image on a monitor or the like.

  As such a moving handrail deterioration diagnosis apparatus, an apparatus in which a radiation generating part for irradiating radiation and a fluorescent part for displaying a transmission image are fixed using a balustrade part so as to be located above and below the moving handrail, respectively. Has been proposed (see, for example, Patent Document 1). In the moving handrail degradation diagnosis device disclosed in Patent Document 1, the radiation generating unit and the fluorescent unit are arranged obliquely with respect to the vertical direction when viewed from the traveling direction of the moving handrail. Thereby, the internal deterioration diagnosis by the radiation of a moving handrail becomes possible, without removing a moving handrail from a passenger conveyor.

JP 2003-48683 A

  However, the moving handrail deterioration diagnosis device described in Patent Document 1 has a problem that it is difficult to attach the radiation generating unit and the fluorescent unit. In other words, since the radiation generating part and the fluorescent part are oblique when viewed from the cross-sectional direction of the moving handrail, positioning is difficult, and the attachment part structure of the both straddles the moving handrail. It was difficult. In addition, since the radiation generating part and the fluorescent part are divided and are not mechanically installed without a gap, there is a problem that it is difficult to prevent radiation leakage.

  The present invention has been made in view of the above inconveniences, and an object of the present invention is to provide a moving handrail deterioration diagnosis device for a passenger conveyor that can be easily attached and can also prevent radiation leakage. It is in.

One aspect of the present invention is a deterioration diagnosis apparatus for diagnosing internal deterioration of a moving handrail of a passenger conveyor by radiation, and includes a light source that irradiates the moving handrail with radiation, the light source and the movement The moving handrail by receiving radiation transmitted through the moving handrail by the radiation irradiated from the light source and a radiation generating unit configured to cover a portion irradiated by the light source of the handrail The light source is configured by a housing that covers a portion of the imaging portion and the moving handrail that is imaged by the imaging portion, and is combined with the housing of the radiation generating portion. Irradiating from the light source in a light receiving unit that is a box that covers the moving handrail and the imaging unit, and a through hole through which the moving handrail passes through the box With radiation comprises a shielding plate for suppressing leak outside of the box body, the imaging unit captures the image from the reflecting plate for changing the direction of light transmitted through the moving handrail, said radiation The width of the moving handrail in the traveling direction of the box constituted by the generating part and the light receiving part is configured to be shorter than the distance between the vertices of the steps of the passenger conveyor, and the moving handrail moved above the balustrade part The apparatus main body is installed in the space inside the box below the balustrade part into which the is drawn.

  In addition, it further includes a connecting portion that connects the radiation generating portion and the light receiving portion, and the connecting portion receives the transmitted light that has been irradiated from the light source and transmitted through the moving handrail, and is received by the light receiving portion. It is preferable to connect the radiation generating unit and the light receiving unit in a positional relationship such that a handrail is imaged. As a result, when the apparatus is installed, the positions of the radiation generating part and the fluorescent part are always aligned, so that positioning of both is easy. Further, since the alignment is complete, there is no gap between the radiation generating part and the fluorescent part, so that radiation leakage is extremely reduced.

  In addition, a power supply wiring for supplying power to the light source and an output wiring for outputting an image captured by the imaging unit to the outside may be drawn from the box in the traveling direction of the moving handrail. preferable. Thereby, wiring can be laid without being caught in the step of a passenger conveyor.

  According to the present invention, it is possible to provide a moving handrail deterioration diagnosis device for a passenger conveyor that can be easily attached and that can prevent radiation leakage well.

It is a permeation | transmission top view which shows the structure of the moving handrail deterioration diagnostic apparatus of the passenger conveyor which concerns on embodiment of this invention. It is a figure which shows the external appearance of the state in which the moving handrail deterioration diagnostic apparatus of the passenger conveyor which concerns on embodiment of this invention was attached to the moving handrail. It is a figure which shows the external appearance of a general passenger conveyor.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS A passenger conveyor moving handrail diagnostic apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of a moving handrail diagnosis apparatus according to the present embodiment. FIG. 2 is a diagram showing an external appearance of the mobile handrail diagnostic device according to the present embodiment attached to the mobile handrail 10. As shown in the figure, the moving handrail diagnostic device according to the present embodiment includes a light receiving unit 1 that is placed from above the moving handrail 10 and a light receiving unit 1 that is placed from below the moving handrail 10. And a radiation generator 2 arranged to face each other. As shown in FIG. 2, the light receiving unit 1 and the radiation generating unit 2 are combined with a moving handrail 10 in between to form a box shape.

  The light receiving unit 1 includes a mounting unit 1a, a reflecting plate 1b for reflecting a transmitted image, a camera 1c for capturing an image from the reflecting plate 1b, an output cable 1d of the camera 1c, a light receiving unit 1, and a radiation war. And a connecting portion 1e for connecting the portions 2 to each other. As illustrated in FIGS. 1 and 2, the light receiving unit 1 includes at least a camera 1 c that is an imaging unit and a housing that covers a portion of the moving handrail 10 that is imaged by the camera 1 c.

  The radiation generation unit 2 according to the present embodiment is an X-ray generation source. The radiation generator 2 includes an X-ray generator 2a, an X-ray generator tube 2b inside the X-ray generator 2a, a power cable 2c for supplying power to the X-ray generator 2a, and a light receiver 1 2d for connecting the radiation generating part 2 and a shielding plate 2e for suppressing radiation leakage. As shown in FIGS. 1 and 2, the radiation generation unit 2 is configured by at least an X-ray generator 2 a that is a light source and a casing that covers a portion of the moving handrail 10 that is irradiated by the X-ray generator 2 a. Yes.

  And the box is comprised by combining the housing | casing of the light-receiving part 1 and the housing | casing of the radiation generation part 2. FIG. The box body covers the portion of the moving handrail 10 that is irradiated with X-rays and imaged by the camera 1c, the X-ray generator 2a, and the camera 1c. That is, the path of the radiation is covered with the box, and the radiation can be prevented from leaking to the outside.

  In the present embodiment, the shielding plate 2e is provided as a part of the radiation generating unit 2, but the present invention is not limited to this. As shown in FIG. 1, the shielding plate 2 e leaks radiation irradiated from the X-ray generator 2 a serving as a light source to the outside of the box in a through hole through which the moving handrail 10 penetrates the box described above. This is provided to suppress this, and may be provided separately from the light receiving unit 1 and the radiation generating unit 2 even in a part on the light receiving unit 1 side.

  Note that an image processor 3 is connected to the output cable 1d of the camera 1c, and the image processor 3 converts an image signal from the camera 1c into a digital signal. That is, the output cable 1d is an output wiring for outputting an image captured by the camera 1c to the outside. The image signal digitized by the image processor 3 is taken into the personal computer (not shown) from the image processor 3 and used for deterioration diagnosis of the moving handrail 10. The power supply 4 is configured to supply power to the X-ray generator 2a via the power cable 2c. That is, the power cable 2c is a power supply wiring for supplying power to the X-ray generator 2a.

  Here, FIG. 3 is a diagram showing the appearance of a general escalator. As shown in FIG. 3, the moving handrail 10 of the passenger conveyor including the escalator and the moving sidewalk is always drawn into the inside of the housing 12 below the balustrade part 11 and is upside down with respect to the balustrade part. It moves to the return side. In the housing 12, there is a relatively space other than the device that pushes out the moving handrail 10.

  The moving handrail deterioration diagnosis apparatus according to the present embodiment is installed using the space inside the housing 12. When attaching the moving handrail deterioration diagnosis device, as shown in FIG. 2, the attaching portion 1 a in the light receiving portion 1 is attached to the L-shaped steel material 5 inside the housing 12. At this time, if the length of the entire light receiving unit 1 is longer than the distance 6a between the vertices of the step 6, the apparatus cannot enter the interior, so it must be always shorter than the distance between the vertices.

  Moreover, there is a restriction in the height direction because of the installation in the space inside the housing 12. For this reason, as shown in FIG. 1, it is possible to shoot with the camera 1c without increasing the height by changing the direction of the transmitted image using the reflector 1b.

  After the light receiving unit 1 is fixed, the radiation generating unit 2 is attached. The radiation generating unit 2 includes a connecting part 2d that is paired with the connecting part 1e, and the connecting part 1e and the connecting part 2d have a structure that cannot be fixed unless the meshing is successful. As a result, it is possible to avoid a problem that the positions of the radiation generating unit 1 and the light receiving unit 2 are shifted and a transmission image cannot be captured well. In other words, in the connecting portion 1e and the connecting 2d, the transmitted light that has been irradiated from the X-ray generator 2a that is a light source and transmitted through the moving handrail 10 is received by the camera 1c that is the light receiving portion. The light receiving unit 1 and the radiation generating unit 2 are connected only in such a positional relationship as to be imaged.

  Moreover, since the radiation generation part 2 and the light-receiving part 1 can be mounted without a gap, it is possible to suppress radiation leakage. Furthermore, since the radiation generator 2 is provided with a shielding plate 2e that is a prevention mechanism for preventing radiation leakage in the traveling direction of the moving handrail, the amount of radiation leakage from the apparatus is 1.4 μSV / actually measured. h and can be kept very low.

  Furthermore, since the output cable 1d and the power cable 2c are extended in the traveling direction of the moving handrail, they can be laid without being caught in the adjacent step 6.

  As a result, the passenger conveyor can be moved in a normal operation, and a transmission image of the moving handrail can be taken and diagnosed, and the diagnostic work time can be greatly reduced. The installation time of the apparatus according to the present invention is about 10 minutes, and the radiation leakage amount is about 50% lower than the measured value of 1.4 μSV / h, compared to 2.5 μSV / h stipulated by the law. In addition, since the portion where the radiation leaks most in the device is a portion where there is no worker, there is an effect that the safety to the surroundings is higher.

1 Light receiver,
1a mounting part,
1b reflector,
1c camera,
1d output cable,
1e connecting part,
2 radiation generator,
2a X-ray generator,
2b X-ray generator tube,
2c power cable,
2d connecting part,
3 Image processor,
4 Power supply,
5 L-shaped steel material,
6 Steps,
6a Distance between vertices,
10 Moving handrail,
11 Parapet,
12 body

Claims (3)

  1. A deterioration diagnosis device for diagnosing internal deterioration of a moving handrail of a passenger conveyor by radiation,
    A radiation generator configured to include a light source that emits radiation to the moving handrail, and a portion that is irradiated by the light source of the moving handrail and a housing that covers the light source;
    A portion that includes an imaging unit that images the moving handrail by receiving transmitted light that has passed through the moving handrail due to the radiation emitted from the light source, and that is imaged by the imaging unit of the moving handrail And a light receiving unit that is a box that covers the light source, the moving handrail, and the imaging unit by being combined with the housing of the radiation generating unit, and a housing that covers the imaging unit.
    A shielding plate for suppressing radiation irradiated from the light source in a through hole for the moving handrail to pass through the box, and leaking outside the box,
    The imaging unit captures an image from a reflection plate that changes the direction of transmitted light that has passed through the moving handrail, and also moves the moving handrail in the traveling direction of the box formed by the radiation generating unit and the light receiving unit. The width is configured to be shorter than the distance between the vertices of the steps of the passenger conveyor,
    An apparatus for diagnosing deterioration, wherein an apparatus main body is installed in a space inside a housing below a balustrade part into which the moving handrail moved above the balustrade part is drawn.
  2. And further comprising a connecting part for connecting the radiation generating part and the light receiving part,
    The coupling unit is configured such that the radiation generating unit and the light receiving unit are in a positional relationship such that transmitted light irradiated from the light source and transmitted through the moving handrail is received by the light receiving unit and the moving handrail is imaged. The deterioration diagnosis apparatus according to claim 1, wherein
  3.   A power supply wiring for supplying power to the light source and an output wiring for outputting an image captured by the imaging unit to the outside are drawn out from the box in the traveling direction of the moving handrail. The deterioration diagnosis apparatus according to claim 1 or 2.
JP2010092329A 2010-04-13 2010-04-13 Deterioration diagnosis device for moving handrails of passenger conveyors Active JP5221588B2 (en)

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JP2010092329A JP5221588B2 (en) 2010-04-13 2010-04-13 Deterioration diagnosis device for moving handrails of passenger conveyors

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010092329A JP5221588B2 (en) 2010-04-13 2010-04-13 Deterioration diagnosis device for moving handrails of passenger conveyors
CN201110094309.8A CN102253060B (en) 2010-04-13 2011-04-13 Deterioration diagnosis device for moving handrail of passenger conveyor
HK12104951.5A HK1164447A1 (en) 2010-04-13 2012-05-21 A deterioration diagnosis device for the moving handrail of a passenger conveyor

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JP5221588B2 true JP5221588B2 (en) 2013-06-26

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Publication number Priority date Publication date Assignee Title
JP5566419B2 (en) * 2012-05-09 2014-08-06 株式会社日立ビルシステム Moving handrail deterioration diagnosis device and deterioration diagnosis method
JP5871735B2 (en) * 2012-07-04 2016-03-01 株式会社日立ビルシステム Mobile handrail deterioration diagnosis device
JP5903392B2 (en) * 2013-02-07 2016-04-13 株式会社日立ビルシステム Handrail flaw detector for passenger conveyor
JP6204892B2 (en) * 2014-09-09 2017-09-27 株式会社日立ビルシステム Moving handrail deterioration diagnosis device for passenger conveyor

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
JPH07267566A (en) * 1994-03-30 1995-10-17 Hitachi Building Syst Eng & Service Co Ltd Man conveyor handrail inspecting device
JPH09188492A (en) * 1996-01-08 1997-07-22 Hitachi Building Syst Co Ltd Ultraviolet ray irradiating device for man conveyor hand rail
JPH09278340A (en) * 1996-04-05 1997-10-28 Mitsubishi Denki Bill Techno Service Kk Handrail cleaning device for passenger conveyor
JP3650220B2 (en) * 1996-06-27 2005-05-18 株式会社日立ビルシステム Handrail flaw detection method
JP3547260B2 (en) * 1996-06-27 2004-07-28 株式会社日立ビルシステム X-ray flaw detector for handrail for man conveyor
JP2000180417A (en) * 1998-12-10 2000-06-30 Hitachi Building Systems Co Ltd Apparatus for detecting flaw of plate-shaped member made of magnetic material and method therefor
JP2003048683A (en) * 2001-08-03 2003-02-21 Hitachi Building Systems Co Ltd Moving handrail damage diagnosing device for passenger conveyor
JP2005126175A (en) * 2003-10-22 2005-05-19 Hitachi Building Systems Co Ltd Diagnosing device for escalator handrail
JP2007111120A (en) * 2005-10-18 2007-05-10 Toshiba Corp X-ray imaging apparatus
JP2009145312A (en) * 2007-12-12 2009-07-02 Terahertz Laboratory Co Inspection apparatus and inspection method
JP5114636B2 (en) * 2008-01-31 2013-01-09 株式会社 システムスクエア Foreign matter inspection device
CN201181281Y (en) * 2008-03-20 2009-01-14 深圳市鑫源通电子有限公司 Portable X-ray article examination device

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CN102253060B (en) 2014-01-29
CN102253060A (en) 2011-11-23
HK1164447A1 (en) 2014-07-25

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