JP6585230B1 - Passenger conveyor - Google Patents

Abstract

A passenger conveyor that can easily detect the open / closed state of a boarding / alighting plate by non-contact means. A machine room, a board / board that forms a ceiling surface of the machine room, and a board / board that is arranged in the machine room at a predetermined distance from the board / board so as not to contact the board. A distance sensor that measures the distance to the vehicle, and a control means that, when the measurement distance of the distance sensor is longer than a predetermined reference distance, determines that the boarding / alighting plate is in an open state, stops the operation, and outputs a notification signal And a passenger conveyor. [Selection] Figure 2

Description

  Embodiments of the present invention relate to passenger conveyors.

  Conventionally, the machine room of the passenger conveyor has been provided with a switch for detecting the open / closed state of the boarding / exiting plate constituting the ceiling surface of the machine room, and when the switch detects the open state of the boarding / exiting plate, the passenger conveyor is operated. It is controlled to stop.

JP2013-116815A

  The switch may be damaged when the board is closed, and a method for detecting the open / closed state of the board using a non-contact means has been demanded.

  Therefore, in view of the above problems, an embodiment of the present invention aims to provide a passenger conveyor that can easily detect the open / closed state of the boarding / alighting plate by non-contact means.

Embodiments of the present invention, the machine room and, a plurality of landing plate constituting the ceiling surface of the machine room, the boarding plates a predetermined distance so as not to contact with the elevating plate open only, a plurality A distance for simultaneously measuring the distance to the corresponding plurality of boarding / alighting plates arranged in the machine room so that a plurality of boarding / alighting boards can be detected by aiming within a predetermined range including the boundary of the boarding / alighting board Control means for determining that the boarding / alighting plate is in an open state and stopping the operation and outputting a notification signal when the sensor and the distance measured by the distance sensor are longer than a corresponding predetermined reference distance and, that having a, a passenger conveyor.

Explanatory drawing seen from the side of the escalator which shows one Embodiment of this invention. Explanatory drawing which looked at the machine room from which the boarding board of the escalator of one Embodiment is a closed state from the side. Block diagram of the escalator. Explanatory drawing which looked at the machine room from which the boarding board of the escalator of a modification example is a closed state from the side.

  Hereinafter, the escalator 10 of one Embodiment of this invention is demonstrated with reference to FIGS. 1-3.

(1) Escalator 10
The structure of the escalator 10 will be described with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as seen from the side.

  A truss 12 that is a framework of the escalator 10 is supported using support angles 2 and 3 across the upper and lower floors of the building 1. The truss 12 is composed of an inclined portion that combines a plurality of frame members to connect a horizontal portion on the upper floor, a horizontal portion on the lower floor, and a horizontal portion on the upper and lower floors.

  Inside the upper floor machine room 14 in the upper end portion of the truss 12, a drive device 18 for running the step 30, a pair of left and right main drive sprockets 24, 24, and a pair of left and right handrail drive sprockets 100, 100 are provided. ing. The drive device 18 stops and stops the rotation of the motor 20, the speed reducer, the output sprocket attached to the output shaft of the speed reducer, the drive chain 22 driven by the output sprocket, and the motor 20. And a disc brake for maintaining the state. The drive chain 22 rotates the pair of left and right main drive sprockets 24, 24. The pair of left and right main drive sprockets 24, 24 and the pair of left and right handrail drive sprockets 100, 100 are connected by a connecting belt (not shown) and rotate synchronously. A control device 50 for controlling the motor 20, the disc brake, and the like is provided in the machine room 14 on the upper floor side.

  A pair of left and right driven sprockets 26 and 26 are provided in the lower floor machine room 16 at the lower end of the truss 12. Between the pair of left and right main drive sprockets 24, 24 on the upper floor side and the pair of left and right driven sprockets 26, 26, a pair of left and right endless step chains 28, 28 are suspended. A plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals. When the motor 20 rotates, the front wheel 301 of the step 30 travels on a guide rail (not shown) fixed to the truss 12, and the rear wheel 302 travels on the guide rail 25 fixed to the truss 12.

  On the left and right sides of the truss 12, a pair of left and right balustrades 36, 36 are erected. A handrail rail 39 is provided above the balustrade 36, and an endless handrail belt 38 moves along the handrail rail 39. A front skirt guard 40 on the upper floor side is provided in the lower front part on the upper floor side of the balustrade 36, and a front skirt guard 42 on the lower floor side is provided in the lower front part on the lower floor side. Inlet portions 46 and 48, which are entrances and exits of the handrail belt 38, protrude from each other.

  A skirt guard 44 is provided at the lower side of the balustrade 36, and the step 30 travels between the pair of left and right skirt guards 44, 44. Operation panels 52 and 56 and speakers 54 and 58 are provided on the inner side surfaces of the skirt guards 44 on the upper and lower floors, respectively.

  The handrail belt 38 enters the front skirt guard 40 from the inlet portion 46 on the upper floor side, is passed over the handrail drive sprocket 100 through the guide roller group 64, and then is skirted through the guide roller group 66. It moves in the guard 44 and appears outside the front skirt guard 42 from the inlet 48 on the lower floor side. The handrail belt 38 moves in synchronization with the step 30 as the handrail drive sprocket 100 rotates together with the main drive sprocket 24. Further, a pressing member 70 is provided for pressing the handrail belt 38 that travels to the rotating handrail driving sprocket 100.

  An entrance / exit of a pair of left and right skirt guards 44, 44 on the upper floor side, and the upper floor side entrance / exit plate 32 is horizontally provided on the ceiling surface of the machine room 14. A lower floor side entrance / exit board 34 is provided horizontally on the ceiling surface of the machine room 16, which is the entrance for the pair of left and right skirt guards 44, 44 on the lower floor side. A comb-like comb 60 is provided at the front end of the upper floor board 32, and the step 30 enters the comb 60. A comb-like comb 62 is also provided at the tip of the lower floor board 34.

(2) Configuration for Detecting Open / Closed State of Boarding / Exiting Plate 32 The configuration for detecting the opening / closing state of the boarding / exiting plate 32 will be described with reference to FIG. Note that FIG. 2 is a diagram showing, in an easy-to-understand manner, only the portion related to the configuration for detecting the open / close state of the boarding / alighting plate 32 in the escalator 10 shown in FIG.

  In the machine room 14 of the escalator 10, as shown in FIG. 2, a distance sensor 78 that measures the distance to the boarding board 32 is spaced from the boarding board 32 so as not to contact the boarding board 32. It is provided on the upper surface of the control device 50. Here, the “predetermined interval” is a distance that the distance sensor 78 is not likely to come into contact with when the boarding / alighting plate 32 is attached / detached, and the distance sensor 78 can measure the distance to the boarding / alighting plate 32. For example, the distance to the boarding / alighting plate 32 is preferably 5 cm or more, more preferably 10 cm or more, and further preferably 15 cm or more.

  As the distance sensor 78, for example, a TOF (Time of Flight) sensor is used. A TOF sensor uses a near-infrared LED light source and a CMOS image sensor to acquire distance image data, and measures the time in which the projected light pulse returns to the target in real time to measure the distance image image. For example, when the phase difference method is used, the distance measurement is performed by blinking the projection pulse at high speed and measuring the phase delay of the reflected light.

  An electrical configuration for detecting the open / closed state of the boarding / exiting plate 32 will be described with reference to FIG. A communication unit 80 is provided inside the control device 50 and transmits / receives information related to the escalator 10 through communication with a management device 82 outside the escalator 10. A distance sensor 78 is connected to the control device 50.

(3) Method for Detecting Open / Closed State of Boarding / Exiting Plate 32 A method for detecting the opening / closing state of the boarding / exiting plate 32 will be described.

  The distance sensor 78 is operated by the operator by operating the operation panel 52 to switch to the inspection mode when the escalator 10 is inspected, and after performing the inspection operation, the operator operates the operation panel 52 again to perform normal operation. When switching to the operation mode to be performed and starting the operation of the escalator 10, the distance L to the boarding / exiting plate 32 is measured and output to the control device 50 as shown in FIG. 2.

  When the distance L input from the distance sensor 78 is longer than the predetermined reference distance L0, the control device 50 determines that the boarding / alighting plate 32 is in an open state, stops the operation of the escalator 10, and performs communication. Using the unit 80, a notification signal indicating that the boarding / alighting plate 32 is in an open state and the operation of the escalator 10 is stopped is output to the management device 82.

  The management device 82 issues a warning when the notification signal is input, and the administrator of the escalator 10 can know that the boarding / exiting plate 32 is in the open state.

  That is, when the boarding / alighting plate 32 is in the open state, the distance L measured by the distance sensor 78 is, for example, a distance to the ceiling surface of the building 1 (not shown), and the distance L is longer than the reference distance L0. On the other hand, when the boarding / alighting plate 32 is in the closed state, the distance L measured by the distance sensor 78 is the same as the reference distance L0 as shown in FIG.

(4) Effect According to the present embodiment, the control device 50 determines that the boarding / alighting plate 32 is in the open state when the distance L measured by the distance sensor 78 is longer than the reference distance L0, and the distance L to be measured. Is the same as the reference distance L0, it is determined that the boarding / alighting plate 32 is in a closed state. And when the distance L to the boarding / alighting board 32 which the distance sensor 78 measures becomes longer than the reference distance L0, the control apparatus 50 stops the driving | operation of the escalator 10, and alert | reports that the boarding / alighting board 32 is an open state. A signal can be output to inform the administrator. Therefore, the operation of the escalator 10 can be started only when the boarding / alighting plate 32 is in the closed state.

  Further, by using the distance sensor 78 provided at a position where the boarding / alighting plate 32 is not in contact with the boarding / alighting plate 32, the detection unit is not damaged by the attachment / detachment of the boarding / alighting plate 32.

  Further, if the opening / closing state of the boarding board 32 is detected by a switch as in the prior art, it is erroneously detected that the boarding board 32 is in a closed state due to a switch short circuit even though the boarding board 32 is in an open state. However, by measuring the distance to the boarding / alighting plate 32 by the distance sensor 78, it is possible to eliminate such danger by detecting the open / closed state of the boarding / alighting plate 32.

Example of change

  In the above embodiment, the distance sensor 78 is provided on the upper surface of the control device 50 in the machine room 14, but instead, it may be provided on the upper or lower part of the frame member of the truss 12. By providing the distance sensor 78 on the frame of the control device 50 or the truss 12, it is possible to eliminate the influence of the aiming shift due to vibration during the operation of the escalator 10, and this is an obstacle when taking out the control device 50 or the like. It will never be.

  In the above embodiment, when the distance L measured by the distance sensor 78 is the same as the reference distance L0, it is determined that the boarding / alighting plate 32 is in the closed state, but the reference distance L0 is about 2 to 3 cm. It may have an allowable range.

  Further, the control device 50 indicates that there is a foreign substance in the machine chamber 14 such as when the boarding / alighting plate 32 is dropped into the machine chamber 14 when the measurement distance L of the distance sensor 78 is shorter than the reference distance L0. It may be determined to stop the operation and output a notification signal.

  Moreover, although the said embodiment demonstrated the thing which the boarding board 32 consists of one sheet, you may consist of the boarding board 32 of several sheets. In this case, as shown in FIG. 4, a distance sensor 78 may be provided at a position where the distance to the two boards 32 can be measured simultaneously. Specifically, the distance sensor 78 can be provided at a position where the aim of the distance sensor 78 can be adjusted within a predetermined range including the boundary 33 between the two boarding boards 32. Note that “within a predetermined range including the boundary 33” means that the two boarding / exiting plates 32 may be included in a range that can be detected by the distance sensor 78, and may be appropriately adjusted depending on the type of the distance sensor 78 to be used. be able to. In this case, when the distance L1 to one boarding / alighting plate 32 is the same as the reference distance L10 and the distance L2 to the other boarding / alighting plate 32 is the same as the reference distance L20, both the boarding / alighting plates 32 are closed. Judge that there is. That is, when the distance from the distance sensor 78 to the boarding / alighting plate 32 is longer than any one of the corresponding reference distances, the control device 50 determines that the boarding / alighting plate 32 is in the open state, and the escalator 10 Is stopped and a notification signal is output.

  Moreover, when the boarding / alighting board 32 consists of several sheets, you may provide the some distance sensor 78 corresponding to each boarding / alighting board 32. FIG. In this case, the control device 50 determines that the boarding / alighting plate 32 is in a closed state when the distances to the boarding / alighting plates 32 input from the plurality of distance sensors 78 are the same as the corresponding reference distances. That is, when the distance from the distance sensor 78 to the boarding / alighting plate 32 is longer than any one of the corresponding reference distances, the control device 50 determines that the boarding / alighting plate 32 is in the open state, and the escalator 10 Is stopped and a notification signal is output.

  The distance sensor 78 may use a distance sensor other than the TOF sensor.

  Moreover, in the said embodiment, although demonstrated applying to the escalator 10, you may replace with this and may apply to the moving sidewalk.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Building, 10 ... Escalator, 12 ... Truss, 30 ... Step, 36 ... Railing, 38 ... Handrail belt, 50 ... Control device, 78 ... Distance Sensor, 80 ... communication unit, 82 ... management device

Claims (8)

A machine room,
A plurality of boarding and unloading plates constituting the ceiling surface of the machine room;
The elevating plate the boarding plates a predetermined distance so as not to contact opens only with a plurality of the elevating plate to be detected by aiming in a predetermined range including the boundary of the plurality of the elevating plate disposed in the machine room, a distance sensor for measuring a distance to a corresponding plurality of the elevating plate at the same time,
Control means for determining that the boarding / alighting plate is in an open state and stopping the operation when the measuring distance of the distance sensor is longer than any one of the corresponding reference distances, and outputting a notification signal; that Yusuke, passenger conveyor. The control means determines that the boarding / alighting plate is in a closed state when the measurement distance of the distance sensor is the same as the reference distance.
The passenger conveyor according to claim 1. The control means also stops operation and outputs a notification signal when the measurement distance of the distance sensor is shorter than the reference distance.
The passenger conveyor according to claim 1. The distance sensor is a TOF sensor;
The passenger conveyor according to claim 1. The distance sensor is provided in a control box containing the control means in the machine room;
The passenger conveyor according to claim 1. The distance sensor is provided on a frame material of a truss constituting the machine room,
The passenger conveyor according to claim 1. When switching the passenger conveyor from the inspection mode to the operation mode and starting the operation,
The passenger conveyor according to claim 1, wherein the distance sensor measures a distance to the boarding / alighting board. A communication unit that transmits the notification signal to an external management device;
The passenger conveyor according to claim 1.