JP2007039190A - Handrail driving device of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To directly detect abnormality such as separation or a rubber cut caused in a driving roller or a pressing roller constituting a handrail driving device of a passenger conveyor. <P>SOLUTION: A pressing roller abnormality detecting device 28a is composed of a pin 31a slidably supported by a support plate 30a fixed to a base 29, a detector 32a fixed on the pin, a position holding spring 34a holding the free end 33a of the detector in a position in close vicinity to the pressing roller 21a, a switch 35a arranged on the pin and an operation disk 36a operating this switch. A recess 37a is formed in a part of the circumference on the operation disk, and an actuator 38a of the switch abuts on this recess. The free end of the detector has the length over the whole width direction of the pressing roller 21a. The position holding spring holds a position in a degree of rotating the detector when a separator 39a of the pressing roller strikes on the free end of the detector. The pressing roller abnormality detecting device is similarly constituted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a handrail drive device for a passenger conveyor such as an escalator or a moving sidewalk, and more particularly to a monitoring device therefor.

  As a device that monitors the handrail drive device of a passenger conveyor, a handrail that is frictionally driven by being sandwiched between the drive roller and the pressure roller uses a displacement sensor to measure the displacement amount of the pressure roller due to a change in the contact surface that contacts the pressure roller or the drive roller. Some are configured to detect and activate the reporting means when the amount of displacement is a predetermined value or more.

  Further, the alerting means sets a predetermined value for the displacement amount in two stages, issues a caution signal when the displacement amount is greater than or equal to the first set value and less than the second set value, and alerts when the displacement amount is greater than or equal to the second predetermined value. Some are configured to emit a signal (see, for example, Patent Document 1).

JP 2000-318963 A (paragraphs 0007 to 0008, FIG. 1)

  Since the device for monitoring the conventional handrail drive device of the passenger conveyor disclosed in Patent Document 1 detects the displacement amount of the pressing roller with a displacement sensor, abnormalities such as peeling of the pressing roller or running out of rubber are detected in the roller width direction. If it occurs partially, the position of the pressing roller does not change, and there is a possibility that an abnormality cannot be detected. In addition, there is a problem that the system configuration is complicated such as calculating the displacement amount.

  The present invention has been made to solve the above-described problems, and an abnormality such as peeling of the pressing roller or the driving roller or running out of rubber is directly detected by a detection device provided on the outer periphery of the roller. The present invention provides a handrail drive device for a passenger conveyor that can detect roller abnormality with a simple configuration.

  A handrail drive device for a passenger conveyor according to the present invention includes a drive roller that abuts on one surface of the handrail of the passenger conveyor and drives the handrail by frictional force, and abuts on the other surface of the handrail and presses the handrail against the drive roller. In the handrail drive device for a passenger conveyor, the pressure roller abnormality detection device includes a switch, and a pressure roller abnormality detection device that detects a protrusion abnormal portion that is formed to protrude from the pressure roller. The detector is disposed on the outer peripheral portion of the pressing roller, and includes a detector that detects the abnormality of the pressing roller by operating the switch by contact with the abnormal portion of the protrusion, and the detector includes the entire width direction of the pressing roller. It detects the abnormal portion of the protrusion formed on the surface.

  According to the present invention, even when an abnormality such as peeling of the pressing roller or the driving roller constituting the handrail drive device of the passenger conveyor or a piece of rubber occurs in a part of the roller width direction, the abnormality can be detected early, and the abnormality is expanded. Thus, the handrail can be damaged or the driving force can be prevented from being lowered, and the abnormality of the roller can be detected with a simple configuration.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a handrail drive device for a passenger conveyor according to the present invention will be described with reference to the accompanying drawings.

Embodiment 1 FIG.
1 to 6 illustrate the first embodiment of the present invention and show an application example to an escalator. 1 is a side longitudinal sectional view of the escalator, FIG. 2 is a front view of the handrail drive unit of the escalator, FIG. 3 is an enlarged view of a portion A in FIG. 2, FIG. 4 is a side view seen from the direction B in FIG. 4 is a partial perspective view, and FIG. 6 is a block diagram for explaining a control operation.

  As shown in FIG. 1, the escalator forms a ramp supported by a truss 2 straddled between the upper beam 1a and the lower beam 1b, and the drive motor 3 is housed on the top of the ramp. The step sprocket 4 is driven. An endless step chain 5 is wound around the step sprocket 4, and further, a step 6 is engaged with the step chain 5 and moved in a vertical row.

  A handrail first sprocket 7 is attached to a rotating shaft (not shown) of the step sprocket 4, and drives the handrail second sprocket 9 via a handrail chain 8. The handrail drive unit HD is driven by the handrail second sprocket 9, and the handrail 10 is driven at the same speed as the step 6 by the handrail drive unit HD. Further, the operation of this escalator is controlled by the control panel 11.

  2 to 5 show details of the handrail drive unit HD. The handrail 10 includes two driving rollers 20a and 20b and two pressing rollers 21a and 21b as one set, and the other two sets of driving rollers 20c and 20d and two pressing rollers 21c and 21d. It is frictionally driven by being sandwiched between two sets of driving rollers 20a to 20d and pressing rollers 21a to 21d. That is, the drive rollers 20a and 20b are connected by a connector 22a, and the drive rollers 20c and 20d are connected by a connector 22b to form one set, and each of the drive rollers 20a to 20d has the truss 2 shown in FIG. It is rotatably supported by a bracket 23 which is a component, and is driven by a handrail drive chain 9b wound around a handrail drive sprocket 9a which is coaxially attached to the handrail second sprocket 9 shown in FIG.

  Further, the pressing rollers 21a and 21b are connected by a connector 24a, and the pressing rollers 21c and 21d are connected by a connector 24b to form a pair, and the pressing rollers 21a to 21d are shafts 25a to 25a. It is rotatably connected by 25d.

  The connector 22a and the connector 24a, and the connector 22b and the connector 24b are compressed with each other by the pressing bolts 26a and 26b and the pressing springs 27a and 27b that pass through the intermediate portions, respectively, and the driving force 20a, 20b and the pressure rollers 21a and 21b, and the drive rollers 20c and 20d and the pressure rollers 21c and 21d are frictionally driven while pinching the handrail 10. The circumferential surfaces of the driving rollers 20a to 20d and the pressing rollers 21a to 21d are made of a material such as rubber.

  And the pressure roller abnormality detection apparatus 28a-28d which detects abnormality of the press rollers 21a-21d, for example, peeling, or rubber | gum out of the rubber | gum is provided in the position slightly distant from each of the press rollers 21a-21d, and the following. The details of the pressure roller abnormality detection devices 28a to 28d will be described below. Since the pressing roller abnormality detection devices 28a to 28d have the same configuration, the details will be described here by taking the pressing roller abnormality detection device 28a as an example for convenience of explanation.

  As shown in FIG. 3, the pressure roller abnormality detection device 28a includes a pin 31a slidably supported on a support plate 30a fixed to a base 29, a detector 32a fixed on the pin 31a, and a detection The position holding spring 34a holds the free end 33a of the child 32a at a position close to the pressing roller 21a, a switch 35a provided on the pin 31a, and an operation disk 36a for operating the switch 35a. The operating disc 36a is formed with a recess 37a in a part of the circumference, and the operating member 38a of the switch 35a is disposed in contact with the recess 37a. The free end 33a of the detector 32a has such a length as to cover the entire width direction of the pressing roller 21a, and the position holding spring 34a has a cantilever structure as shown in FIG. 4 or FIG. For example, when the peeling 39a of the pressing roller 21a hits the free end 33a of the detector 32a, the position is maintained so that the detector 32a rotates. The above is the detailed configuration of the pressure roller abnormality detection device 28a, and the other pressure roller abnormality detection devices 28b to 28d are configured similarly.

  Further, in the escalator handrail drive device according to the first embodiment, as shown in FIG. 6, the control panel 11 sends warning warning means 60 and escalator stop means 61 in response to signals from the pressure roller abnormality detection devices 28a to 28d. It is configured to output a command.

  The handrail drive device for an escalator according to Embodiment 1 is configured as described above, and the operation thereof will be described next. In the description of this operation, the pressing roller abnormality detection device 28a will be described as an example for convenience.

  As shown in FIG. 3, when the pressing roller 21a rotates in the direction of the arrow, if, for example, peeling 39a occurs in at least a part of the pressing roller 21a, the peeling 39a protrudes from the normal roller surface (outer peripheral surface), and the pressing roller The free end 33a of the detector 32a of the abnormality detection device 28a is kicked to overcome the holding force of the position holding spring 34a, so that the detector 32a rotates in the direction of the arrow, and at the same time, the operating disc 36a fixed on the pin 31a is also provided. Similarly, the switch 35a is operated by rotating in the direction of the arrow and pressing the operating element 38a disposed in contact with the recess 37a of the operating disk 36a.

  As shown in FIG. 6, a warning issuing means 60 issues a warning to a remote monitoring device (not shown), for example, via a control panel 11 by a signal from the pressing roller abnormality detecting device 28a, or a roller abnormality detecting device. A signal is output to the escalator stop means 61 via the control panel 11 by the signal from 28a, and the escalator is stopped. The other pressing roller abnormality detection devices 28b to 28d operate in the same manner as the roller abnormality detection device 28a.

  The handrail drive device for the escalator according to the first embodiment is configured and operated as described above, so that abnormalities such as peeling of the pressing roller of the handrail drive device or running out of rubber can be caused early by warning notification by the warning notification means. For example, it is possible to prevent peeling and damage to the handrail, and to prevent a decrease in driving force (handrail delay or handrail stop). Further, when the escalator is stopped, the escalator is stopped immediately after the abnormality is detected, so that it is possible to prevent an accident caused by, for example, a peeling portion of the pressing roller interfering with another device.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. FIG. 7 explains the operation of the second embodiment of the present invention. When the device for monitoring the handrail drive device of the escalator is activated, an alarm is displayed on the display device at the same time as the warning is issued or the escalator is stopped. is there. 1 to 5 are the same as those in the first embodiment, and the description thereof is omitted.

  In FIG. 7, for example, when peeling occurs in any of the pressing rollers 21 a to 21 d constituting the handrail driving device of the escalator, the warning issuing means 60 is output via the control panel 11 by the output signals of the pressing roller abnormality detecting devices 28 a to 28 d. Is displayed on the display device 70 at the same time as the warning is issued or the escalator is stopped by the escalator stopping means 61.

  For example, in a handrail drive device for an escalator having four pressing rollers 21a to 21d, if, for example, separation occurs in one pressing roller 21a, it can be seen which pressing roller 21a is. For example, the information is displayed on the display device 70 provided in the vicinity of the entrance / exit or in the machine room. The display device 70 is turned on using a light source 71 such as an LED, and displays, for example, the pressing roller 21a where peeling has occurred.

  According to the handrail drive device of the escalator according to the second embodiment, it is possible to easily determine the pressing roller in which an abnormality such as peeling or rubber breakage has occurred, and there is an effect that improvement in maintenance at the time of roller replacement can be achieved. In the handrail drive device of the escalator which has many press rollers, the position of the handrail drive device may be installed away, and it is especially effective.

Embodiment 3 FIG.
FIG. 8 shows a handrail drive device for an escalator according to the third embodiment. In the first embodiment, the abnormality of the pressure roller is detected by the pressure roller abnormality detection device, and the abnormality of the pressure roller, for example, the pressure roller abnormality for detecting peeling or rubber breakage is detected at a position slightly below the pressure roller. Although the embodiment in which the detection device is provided has been described, the third embodiment detects an abnormality of the driving roller.

  That is, in FIG. 8, the drive roller abnormality detection devices 80a to 80d are attached to the bracket 23 which is a component of the truss 2 shown in FIG. The drive roller abnormality detection devices 80a to 80d have the same configuration as the pressure roller abnormality detection devices 28a to 28d described in the first embodiment, and a detailed description thereof is omitted.

  In the drive roller abnormality detection devices 80a to 80d, the free ends 82a to 82d of the detectors 81a to 81d are arranged at positions slightly above each of the drive rollers 20a to 20d. The drive roller abnormality detection devices 80a to 80d are attached to the pressing roller abnormality detection devices 28a to 28d according to the first embodiment in a reverse relationship. Other configurations other than the drive roller abnormality detection devices 80a to 80d are the same as those described in the first embodiment, and the description thereof is omitted.

  The handrail drive device for the escalator according to the third embodiment operates in the same manner as in the first embodiment with the above configuration, and when an abnormality such as peeling or running out of rubber occurs on the surfaces of the drive rollers 20a to 20d, the abnormality is early detected. The warning issuing means 60 issues a warning to a remote monitoring device (not shown), for example, via the control panel 11 by signals from the drive roller abnormality detection devices 80a to 80d, or the escalator is stopped by the escalator stop means 61. It is something to be made.

  As a result, abnormalities such as peeling or running out of rubber can be enlarged to damage the handrail, or a decrease in driving force (handrail delay or handrail stop) can be prevented. Further, when the escalator is stopped, the escalator is stopped immediately after the abnormality is detected, so that it is possible to prevent an accident caused by, for example, a peeling portion of the driving roller interfering with another device.

Embodiment 4 FIG.
Next, an escalator handrail drive device according to Embodiment 4 will be described. FIG. 9 illustrates the operation of the fourth embodiment. In the fourth embodiment, the detection signals of the drive roller abnormality detection devices 80a to 80d shown in the third embodiment are transmitted via the control panel 11. 9 is the same as that of the third embodiment except for the display device 90.

  For example, in a handrail drive device for an escalator having four drive rollers 20a to 20d, if, for example, separation occurs in one drive roller 20a, it can be seen which drive roller 20a is. For example, the information is displayed on the display device 90 provided in the vicinity of the entrance / exit or in the machine room. The display device 90 is turned on using a light source 91 such as an LED to display, for example, the drive roller 20a where peeling has occurred.

  According to this, it is possible to easily determine the drive rollers 20a to 20d in which an abnormality has occurred, and it is possible to improve maintenance when replacing the rollers.

Embodiment 5. FIG.
FIG. 10 shows a handrail drive device for an escalator according to the fifth embodiment. The handrail drive device for the escalator according to the fifth embodiment is a combination of the pressure roller abnormality detection device according to the first embodiment and the drive roller abnormality detection device according to the third embodiment, and each of the pressure rollers has a pressure roller abnormality detection device. Each of the drive rollers shows an embodiment provided with a drive roller abnormality detection device.

  That is, each of the pressure rollers 21a to 21d includes pressure roller abnormality detection devices 28a to 28d that detect abnormalities of the pressure rollers 21a to 21d, for example, peeling or rubber breakage, at positions slightly below the pressure rollers 21a to 21d. Is provided. Further, each of the driving rollers 20a to 20d has a driving roller abnormality detecting device 80a to 80d that detects an abnormality of the driving rollers 20a to 20d, for example, peeling or rubber breakage, at a position slightly above the driving rollers 20a to 20d. Is provided.

  Further, as shown in FIG. 11, the control panel 11 instructs the warning issuing means 60 and the escalator stop means 61 by signals from the pressure roller abnormality detection devices 28a to 28d or the drive roller abnormality detection devices 80a to 80d. It is configured to output.

  With the above configuration, when an abnormality such as peeling or running out of rubber occurs on the surfaces of the pressure rollers 21a to 21d or the surfaces of the driving rollers 20a to 20d, the abnormality is detected at an early stage, and the pressure roller abnormality detection devices 28a to 28d or Signals from the drive roller abnormality detection devices 80 a to 80 d are used to issue a warning by the warning issuing means 60 or stop the escalator by the escalator stopping means 61 via the control panel 11.

  Thereby, for example, peeling can be enlarged to damage the handrail, or a decrease in driving force (handrail delay or handrail stop) can be prevented. Further, when the escalator is stopped, the escalator is stopped immediately after the abnormality is detected, so that it is possible to prevent an accident caused by an interference of the peeling portion of the pressing roller or the driving roller with other equipment.

Embodiment 6 FIG.
Next, a handrail drive device for an escalator according to Embodiment 6 will be described. FIG. 12 illustrates the operation of the sixth embodiment. In the sixth embodiment, the detection signals of the pressure roller abnormality detection devices 28a to 28d or the drive roller abnormality detection devices 80a to 80d shown in the fifth embodiment are shown. As shown in FIG. 12, a warning is issued via the control panel 11 or an abnormality is displayed on the display device 110 simultaneously with the stop of the escalator, and the configuration other than the display device 110 is the same as that of the fifth embodiment. .

  For example, in a handrail drive device for an escalator having four pressure rollers 21a to 21d and four drive rollers 20a to 20d, if separation occurs in one drive roller 20a, for example, the drive roller 20a For example, the information is displayed on the display device 110 provided in the vicinity of the entrance / exit or in the machine room. The display device 110 is turned on using a light source 111 such as an LED to display, for example, the drive roller 20a where peeling has occurred.

  According to this, it is possible to easily determine the pressing rollers 21a to 21d or the driving rollers 20a to 20d in which an abnormality has occurred, and it is possible to improve maintenance when replacing the rollers.

Embodiment 7 FIG.
FIG. 13 shows a handrail drive device for an escalator according to the seventh embodiment. In the first to sixth embodiments, each of the pressure rollers is provided with a pressure roller abnormality detection device. However, in the seventh embodiment, the surface of one of the four pressure rollers is peeled or rubberized. When an abnormality such as a cut occurs, the abnormality is detected by, for example, one pressing roller abnormality detection device. That is, the pressure roller abnormality detection device is shared.

  In FIG. 13, the detectors 32 a to 32 d provided at slightly separated positions just below the pressing rollers 21 a to 21 d are respectively attached to the coupling body 130 by pins 31 a to 31 d. A cam 131 is attached to the central portion of the connecting body 130, and a switch 132 is disposed below the cam 131. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.

  The handrail drive device for an escalator according to Embodiment 7 is configured as described above, and the operation thereof will be described next.

  For example, when peeling 39a occurs on the surfaces of the pressing rollers 21a to 21d, the peeling 39a on the surfaces of the pressing rollers 21a to 21d hits the free ends 33a to 33d of the detectors 32a to 32d as in the first embodiment. Rotate 32a-32d. Thereby, both the coupling body 130 and the cam 131 move in the horizontal direction, and the cam 131 operates the switch 132. According to the seventh embodiment, the number of switches 132 can be reduced.

Embodiment 8 FIG.
FIG. 14 shows a handrail drive device for an escalator according to an eighth embodiment. In the seventh embodiment, the occurrence of an abnormality in the pressing roller is detected by, for example, one pressing roller abnormality detecting device. In the eighth embodiment, the occurrence of an abnormality in the driving roller is detected, for example, by one driving roller abnormality detecting device. Is detected by That is, the drive roller abnormality detection device is shared.

  In FIG. 14, the respective detectors 81 a to 81 d provided at positions slightly above the drive rollers 20 a to 20 d are attached to the coupling body 141 by pins 140 a to 140 d. A cam 142 is attached to the central portion of the connecting body 141, and a switch 143 is disposed above the cam 142. Since other configurations are the same as those in the third embodiment, the description thereof is omitted.

  The handrail drive device for an escalator according to the eighth embodiment is configured as described above, and the operation thereof will be described next.

  When an abnormality such as peeling or running out of rubber occurs on the surfaces of the driving rollers 20a to 20d, peeling (not shown) on the surfaces of the driving rollers 20a to 20d is free ends of the detectors 81a to 81d as in the third embodiment. In this case, the detectors 81a to 81d are rotated. Thereby, both the connecting body 141 and the cam 142 move in the horizontal direction, and the cam 142 operates the switch 143. According to the eighth embodiment, the number of switches 143 can be reduced as in the seventh embodiment.

Embodiment 9 FIG.
FIG. 15 shows a handrail drive device for an escalator according to the ninth embodiment. The handrail drive device for the escalator according to the ninth embodiment is a combination of the pressure roller abnormality detection device according to the seventh embodiment and the drive roller abnormality detection device according to the eighth embodiment. An embodiment in which the roller is provided with a drive roller abnormality detection device is shown.

  The respective detectors 32a to 32d provided at positions slightly below the pressing rollers 21a to 21d are rotatably attached to the coupling body 130 by pins 31a to 31d. A cam 131 is attached to the central portion of the connecting body 130, and a switch 132 is disposed below the cam 131. In addition, the respective detectors 81a to 81d provided at positions slightly above the drive rollers 20a to 20d are attached to the coupling body 141 by pins 140a to 140d. A cam 142 is attached to the central portion of the connecting body 141, and a switch 143 is disposed above the cam 142. Since other configurations are the same as those in the seventh embodiment or the eighth embodiment, the description thereof is omitted.

  The handrail drive device for an escalator according to the ninth embodiment is configured as described above, and the operation thereof will be described next.

  For example, when peeling occurs on the surfaces of the pressing rollers 21a to 21d, the peeling of the surfaces of the pressing rollers 21a to 21d hits the free ends of the detectors 32a to 32d and rotates the detectors 32a to 32d as in the seventh embodiment. . Thereby, both the coupling body 130 and the cam 131 move in the horizontal direction, and the cam 131 operates the switch 132. Further, when peeling occurs on the surfaces of the driving rollers 20a to 20d, for example, the peeling of the surfaces of the driving rollers 20a to 20d hits the free ends of the detectors 81a to 81d, and the detectors 81a to 81d are moved. Rotate. Thereby, both the connecting body 141 and the cam 142 move in the horizontal direction, and the cam 142 operates the switch 143.

  According to the ninth embodiment, the number of switches 132 or switches 143 can be reduced as in the seventh or eighth embodiment.

  In each of the above embodiments, an example in which the present invention is applied to an escalator handrail drive device has been illustrated and described. However, the present invention can also be applied to a handrail drive device for a passenger conveyor such as a handrail drive device for a moving walkway. .

  As described above, the handrail drive device for a passenger conveyor according to the present invention can detect abnormalities such as peeling of the pressing roller or the drive roller constituting the passenger handrail drive device or running out of rubber at an early stage, and the abnormalities are enlarged. In addition, the handrail can be damaged or the driving force can be prevented from being lowered, and the abnormality of the pressing roller or the driving roller can be detected with a simple configuration, so that the industrial applicability is great.

It is a side longitudinal cross-sectional view of the escalator which concerns on Embodiment 1 of this invention. It is a front view of the handrail drive device of the escalator which concerns on Embodiment 1 of this invention. FIG. 3 is an enlarged view of part A of FIG. 2. It is the side view seen from the B direction of FIG. FIG. 5 is a partial perspective view of FIG. 4. It is a figure explaining operation | movement of the handrail drive device of the escalator which concerns on Embodiment 1 of this invention. It is a figure explaining operation | movement of the handrail drive device of the escalator which concerns on Embodiment 2 of this invention. It is a front view of the handrail drive device of the escalator which concerns on Embodiment 3 of this invention. It is a figure explaining operation | movement of the handrail drive device of the escalator which concerns on Embodiment 4 of this invention. It is a front view of the handrail drive device of the escalator which concerns on Embodiment 5 of this invention. It is a figure explaining operation | movement of the handrail drive device of the escalator which concerns on Embodiment 5 of this invention. It is a figure explaining operation | movement of the handrail drive device of the escalator which concerns on Embodiment 6 of this invention. It is a front view of the handrail drive device of the escalator which concerns on Embodiment 7 of this invention. It is a front view of the handrail drive device of the escalator which concerns on Embodiment 8 of this invention. It is a front view of the handrail drive device of the escalator which concerns on Embodiment 9 of this invention.

Explanation of symbols

2 truss 3 drive motor 4 step sprocket 5 step chain 6 step 7 handrail first sprocket 8 handrail chain 9 handrail second sprocket 9a handrail drive sprocket 9b handrail drive chain 10 handrail 11 control panel 20a-20d drive roller 21a-21d pressure roller 22a , 22b, 24a, 24b Connector 26a, 26b Press bolt 27a, 27b Press spring 28a-28d Press roller abnormality detection device 30a Support plate 32a, 81a-81d Detector 33a, 82a-82d Free end 35a, 132, 143 Switch 36a Operating disk 39a Separation 60 Warning issuing means 61 Escalator stop means 70, 90, 110 Display device 71, 91, 111 Light source 80a-80d Drive roller abnormality detection device 130, 141 Linked body 131, 142 Mu HD handrail drive unit

Claims (12)

A driving roller that abuts on one surface of a handrail of a passenger conveyor and drives the handrail by frictional force, a pressing roller that abuts on the other surface of the handrail and presses the handrail against the driving roller, and protrudes from the pressing roller In the handrail drive device of the passenger conveyor, comprising a pressing roller abnormality detecting device that detects a protruding portion abnormal portion,
The pressure roller abnormality detection device includes a switch and a detector that is disposed on an outer peripheral portion of the pressure roller and detects the abnormality of the pressure roller by operating the switch by contact with the protrusion abnormal portion,
A handrail drive device for a passenger conveyor, wherein the detector detects an abnormal portion of a protrusion formed in the entire width direction of the pressing roller.   The pressure roller is composed of a plurality of sensors, the detector is composed of a plurality of detectors attached to a connecting body, and the switch is operated by a cam provided on the connecting body. The handrail drive device for a passenger conveyor according to claim 1. A driving roller that abuts on one side of the handrail of the passenger conveyor and drives the handrail by frictional force, a pressing roller that abuts on the other side of the handrail and presses the handrail against the driving roller, and protrudes from the driving roller In the handrail drive device of the passenger conveyor, comprising a drive roller abnormality detection device that detects the protruding portion abnormal portion,
The drive roller abnormality detecting device includes a switch and a detector that is disposed on an outer peripheral portion of the drive roller and detects the abnormality of the drive roller by operating the switch by contact with the protrusion abnormal portion,
A handrail drive device for a passenger conveyor, wherein the detector detects an abnormal portion of a protrusion formed in the entire width direction of the drive roller.   The drive roller includes a plurality of detectors, the detector includes a plurality of detectors attached to a connecting body, and the switch is operated by a cam provided on the connecting body. The handrail drive device of the passenger conveyor of Claim 3. A driving roller that abuts on one surface of a handrail of a passenger conveyor and drives the handrail by frictional force, a pressing roller that abuts on the other surface of the handrail and presses the handrail against the driving roller, and protrudes from the pressing roller In a handrail drive device for a passenger conveyor, comprising: a pressing roller abnormality detecting device for detecting a protruding portion abnormal portion to be detected; and a driving roller abnormality detecting device for detecting a protruding portion abnormal portion formed to protrude from the driving roller.
The pressure roller abnormality detecting device is disposed on an outer peripheral portion of the first switch and the pressure roller, and detects the abnormality of the pressure roller by operating the first switch by contact with the protrusion abnormal portion. The drive roller abnormality detection device includes a second switch and an outer peripheral portion of the drive roller, and the second switch is operated by contact with the protrusion abnormal portion to contact the pressing roller. A second detector for detecting an abnormality,
The first detector detects a protrusion abnormal portion formed in the entire width direction of the pressing roller, and the second detector detects a protrusion abnormality formed in the entire width direction of the drive roller. A handrail drive device for a passenger conveyor, characterized in that it detects a section. The pressing roller is composed of a plurality of sensors, the first detector is composed of a plurality of detectors attached to the first connecting body, and the first cam is provided on the first connecting body. 1 switch is activated, and
The drive roller is composed of a plurality of elements, and the second sensor is composed of a plurality of sensors rotatably attached to the second connector, and the second cam is provided on the second connector. The handrail drive device for a passenger conveyor according to claim 5, wherein the second switch is operated.   The warning roller abnormality detecting device includes warning warning means for issuing a warning when a protruding abnormal portion formed by protruding from the pressing roller is detected. The handrail drive device for a passenger conveyor according to claim 5 or 6.   3. A passenger conveyor stop means for stopping the passenger conveyor when the pressing roller abnormality detecting device detects an abnormal portion of the protruding portion formed by protruding from the pressing roller. The handrail drive device for a passenger conveyor according to claim 5 or 6.   5. The apparatus according to claim 3, further comprising a warning issuing means for issuing a warning when the driving roller abnormality detecting device detects a protruding abnormal portion that protrudes from the driving roller. The handrail drive device for a passenger conveyor according to claim 5 or 6.   5. A passenger conveyor stop means for stopping the passenger conveyor when the driving roller abnormality detecting device detects an abnormal portion of the protruding portion formed by protruding from the driving roller. The handrail drive device for a passenger conveyor according to claim 5 or 6.   3. The apparatus according to claim 1, further comprising a display device that displays the pressing roller when the pressing roller abnormality detecting device detects an abnormal portion of the protruding portion that protrudes from the pressing roller. The handrail drive device for a passenger conveyor according to claim 5, claim 6, claim 7, or claim 8.   5. The display device according to claim 3, further comprising a display device for displaying the drive roller when the drive roller abnormality detection device detects a protrusion abnormal portion formed to protrude from the drive roller. The handrail drive device for a passenger conveyor according to claim 5, claim 6, claim 9, or claim 10.

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