JP6576375B2 - Passenger conveyor - Google Patents

Description

  The present invention relates to a passenger conveyor in which a moving handrail circulates in synchronization with a step.

  Conventionally, a plurality of steps arranged endlessly, an endless moving handrail, a driving device that generates a driving force for driving the plurality of steps and the moving handrail, and a handrail stop device that stops the moving handrail An escalator is known in which a handrail stop device stops a moving handrail before the step stops when the step stops in an emergency (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2006-137965

  However, in order to stop the moving handrail before the step stops, a handrail stop device must be provided, and there is a problem that the configuration is complicated.

  The present invention provides a passenger conveyor having a simple configuration and capable of stopping a moving handrail before a step stops.

The passenger conveyor according to the present invention is provided so as to sandwich the moving handrail with the driving roller in contact with the moving handrail and the driving roller toward the driving roller, and spaced apart from the driving roller than the pressing position. comprising a pressure roller which is displaced between a position, a pressure roller drive unit for displacing the pressing roller, and a pull-detecting device for detecting the retraction of foreign matter into the moving handrail service entrance formed in the balustrade, the drive The roller and the pressure roller are opposed to each other in the thickness direction of the moving handrail, and the driving roller, the pressure roller, the pressure roller driving device, and the pull-in detection device are provided corresponding to each of the pair of moving handrails. When the one pull-in detection device provided corresponding to one moving handrail of the pair of moving handrails detects the foreign object pulling into the moving handrail pulling port, One pressure roller driving device provided corresponding to the moving handrail displaces the pressure roller from the pressing position to the separated position, and the other pressure roller driving device provided corresponding to the other moving handrail is The pressure roller is left in the pressed position.

  According to the passenger conveyor according to the present invention, the pressure roller driving device displaces the pressure roller from the pressing position to the separated position when the pull-in detection device detects the foreign object drawing into the moving handrail pull-in port. Without the handrail stop device, the moving handrail can be stopped before the step stops. As a result, the moving handrail can be stopped with a simple configuration before the step stops.

It is a block diagram which shows the escalator which concerns on Embodiment 1 of this invention. It is an enlarged view which shows the principal part of the moving handrail apparatus of FIG. It is an enlarged view which shows the drive roller of FIG. 2, a pressure roller, and a pressure roller drive device. It is a figure which shows the state which the pressure roller of FIG. 3 displaced. It is a block diagram which shows the escalator of FIG.

Embodiment 1 FIG.
1 is a block diagram showing an escalator according to Embodiment 1 of the present invention. In the figure, an escalator includes a main frame 1 provided between a lower floor and an upper floor, a drive device 2 provided in the main frame 1, a step device 3 for conveying passengers, and a step A moving handrail device 4 that is driven in conjunction with the device 3 is provided.

  The main frame 1 includes an upper floor side horizontal portion 11, a lower floor side horizontal portion 12, and an inclined portion 13 that connects the upper floor side horizontal portion 11 and the lower floor side horizontal portion 12.

  The driving device 2 is provided in the upper floor side horizontal portion 11. The drive device 2 includes a drive machine 21, a control unit 22 that controls the drive of the drive machine 21, a drive sprocket 23 that is rotated by the drive force of the drive machine 21, and the drive machine 21 and the drive sprocket 23. The drive chain 24 is wound around. The driving force of the driving machine 21 is transmitted to the driving sprocket 23 via the driving chain 24.

  The step device 3 is wound between a step sprocket 31 provided on the upper floor horizontal portion 11, a driven sprocket 32 provided on the lower floor horizontal portion 12, and the step sprocket 31 and the driven sprocket 32. And a plurality of steps 34 attached to the step chain 33. In FIG. 1, only a part of the plurality of steps 34 is shown. The plurality of steps 34 are arranged endlessly. Each step 34 circulates along the moving path of the step 34 by the rotation of the step sprocket 31.

  The moving handrail device 4 includes a handrail sprocket 41 provided on the upper horizontal portion 11, a balustrade 42 supported by the main frame 1, an endless moving handrail 43 provided on the outer periphery of the balustrade 42, and a moving handrail 43 includes a plurality of driving rollers 44 provided in contact with the return path side portion 43 and a transmission device 45 that transmits the driving force of the handrail sprocket 41 to the driving rollers 44.

  Further, the escalator further includes a pair of pull-in detection devices 5 that detect the pull-in of foreign matter into the moving handrail pull-in port formed in the balustrade 42. The pull-in detection device 5 is provided in each of the upper floor side portion and the lower floor side portion of the balustrade 42.

  Each of the drive sprocket 23, the step sprocket 31, and the handrail sprocket 41 is disposed coaxially. The drive sprocket 23, the step sprocket 31, and the handrail sprocket 41 are configured to rotate integrally with each other when the drive sprocket 23 receives the drive force from the drive machine 21. Therefore, the step 34 and the moving handrail 43 circulate in synchronization with each other.

  FIG. 2 is an enlarged view showing a main part of the moving handrail device 4 of FIG. The movable handrail device 4 further includes a plurality of pressure rollers 46 that push the return path portion of the movable handrail 43 against the drive rollers 44, and a pressure roller drive device 47 that displaces the pressure rollers 46. . The pressure roller 46 is provided so as to sandwich the moving handrail 43 together with the driving roller 44. In this example, one pressure roller driving device 47 displaces the two pressure rollers 46.

  3 is an enlarged view showing the driving roller 44, the pressure roller 46 and the pressure roller driving device 47 of FIG. 2, and FIG. 4 is a diagram showing a state in which the pressure roller 46 of FIG. 3 is displaced. The pressure roller 46 is provided so as to be displaced between a pressing position where the moving handrail 43 is pressed toward the driving roller 44 and a separation position where the driving handrail 43 is separated from the driving roller 44 rather than the pressing position. 4 shows a state in which the pressure roller 46 in the separated position is separated from the moving handrail 43, but the pressure roller 46 in the separated position is not separated from the moving handrail 43. It is only necessary that the force pushing the toward the drive roller 44 is released.

  The moving handrail 43 is in a state where the return path portion of the moving handrail 43 is pressed against the driving roller 44 by the pressure roller 46, that is, in a state where the position of the pressure roller 46 is the pressing position. By rotating, the moving route of the moving handrail 43 is circulated and moved. On the other hand, the moving handrail 43 is in a state where the return path portion of the moving handrail 43 is not pressed against the driving roller 44 by the pressure roller 46, that is, in a state where the position of the pressure roller 46 is the separated position. Does not circulate even when the motor rotates.

  The pressure roller driving device 47 has a spring member 471 that pushes the pressure roller 46 in a direction in which the position of the pressure roller 46 is displaced from the separated position to the pressing position, and counters the force of the spring member 471 by supplying current. And an electromagnet 472 for displacing the pressure roller 46 from the pressing position to the separation position.

  FIG. 5 is a block diagram showing the escalator of FIG. The pressure roller driving device 47 further includes a current supply unit 473 that supplies current to the electromagnet 472 and a current control unit 474 that controls supply of current from the current supply unit 473 to the electromagnet 472.

  The current control unit 474 is electrically connected to the pull-in detection device 5. When the pull-in detection device 5 detects the foreign object pull-in to the moving handrail pull-in port, the detection result is input to the current control unit 474. The current control unit 474 causes the current supply unit 473 to supply current to the electromagnet 472 when the pull-in detection device 5 detects the foreign object pull-in to the moving handrail pull-in port.

  Next, the operation of the escalator when the step 34 and the moving handrail 43 are brought to an emergency stop when the pull-in detection device 5 detects the foreign object drawing into the moving handrail pull-in opening will be described. In the case where the step 34 and the moving handrail 43 are circulated and the pull-in detection device 5 detects the entry of foreign matter into the moving handrail pull-in port, the control unit 22 stops the driving of the driving device 21 and controls the current. The unit 474 starts supplying current from the current supply unit 473 to the electromagnet 472.

  When the driving of the driving machine 21 is stopped by the control unit 22, the step 34 is advanced and stopped by a preset dimension. In other words, the braking distance of the step 34 has a preset size. In this example, the braking distance of the step 34 is about 40 cm. When the braking distance of the step 34 is smaller than this value, there is a possibility that the user who gets on the step 34 loses the balance when the step 34 is urgently stopped.

  When a current is supplied from the current supply unit 473 to the electromagnet 472 by the current control unit 474, the pressure roller 46 is displaced from the pressing position to the separated position by the pressure roller driving device 47. Thereby, the synchronization of the step 34 and the moving handrail 43 is released. The release of the synchronization between the step 34 and the moving handrail 43 is performed before the stop of the step 34 is completed. By releasing the synchronization of the step 34 and the moving handrail 43, the moving handrail 43 advances and stops by a preset dimension. In other words, the braking distance of the moving handrail 43 is a predetermined dimension. The braking distance of the moving handrail 43 is set shorter than the braking distance of the step 34. In this example, the braking distance of the moving handrail 43 is about 20 cm. The stop of the moving handrail 43 is completed before the stop of the step 34 is completed.

  In this escalator, the driving roller 44, the pressure roller 46, the pressure roller driving device 47, and the pull-in detection device 5 are provided corresponding to each of the pair of moving handrails 43. Further, in this escalator, when one pull-in detection device 5 provided corresponding to one moving handrail 43 of the pair of moving handrails 43 detects the foreign object pull-in to the moving handrail pull-in port, One pressure roller driving device 47 provided corresponding to the moving handrail 43 displaces the pressure roller 46 from the pressing position to the separation position, and the other pressure roller provided corresponding to the other moving handrail 43. The roller driving device 47 is configured to keep the position of the pressure roller 46 at the pressing position.

  As described above, according to the escalator according to the first embodiment of the present invention, the driving roller 44 that contacts the moving handrail 43 and the driving handrail 43 are provided so as to sandwich the moving handrail 43 together with the driving roller 44. A pressure roller 46 that is displaced between a pressing position that is pressed toward the roller 44 and a separation position that is further away from the driving roller 44 than the pressing position, a pressure roller driving device 47 that displaces the pressure roller 46, and a balustrade 42 And a pull-in detection device 5 that detects the foreign object drawing into the formed moving handrail drawing port, and the pressure roller driving device 47 is used when the drawing-in detection device 5 detects the foreign object drawing into the moving handrail drawing port. Since the pressure roller 46 is displaced from the pressing position to the separation position, the moving handrail 43 can be stopped before the step 34 stops without providing a handrail stop device.As a result, the moving handrail 43 can be stopped with a simple configuration before the step 34 stops.

  In this escalator, the driving roller 44, the pressure roller 46, the pressure roller driving device 47, and the pull-in detection device 5 are provided corresponding to each of the pair of moving handrails 43. When one pull-in detection device 5 provided corresponding to one moving handrail 43 in the middle detects the pulling of foreign matter into the moving handrail pull-in port, one of the one provided corresponding to one moving handrail 43 The pressure roller driving device 47 displaces the pressure roller 46 from the pressing position to the separated position, and the other pressure roller driving device 47 provided corresponding to the other moving handrail 43 is positioned at the position of the pressure roller 46. Is kept in the pressed position, and the other moving handrail 43 can be stopped in synchronization with the step 34. As a result, when the step 34 is urgently stopped, the passenger riding on the step 34 can reduce the loss of balance by grasping the other moving handrail 43.

  Further, the pressure roller driving device 47 includes a spring member 471 that presses the pressure roller 46 so that the position of the pressure roller 46 is displaced from the separated position to the pressing position, and the force of the spring member 471 when supplied with current. In contrast, the electromagnet 472 that displaces the pressure roller 46 from the pressing position to the separation position, the current supply unit 473 that supplies current to the electromagnet 472, and the current control that controls the supply of current from the current supply unit 473 to the electromagnet 472 The current control unit 474 is configured to supply current from the current supply unit 473 to the electromagnet 472 when the pull-in detection device 5 detects the pull-in of foreign matter into the moving handrail pull-in port. Thus, the moving handrail 43 can be stopped before the step 34 stops. Moreover, when a power failure occurs, it is possible to prevent the synchronization between the step 34 and the moving handrail 43 from being released.

  In Embodiment 1 described above, an escalator has been described as an example of a passenger conveyor. However, the present invention is not limited to this, and a moving sidewalk may be used.

  In the first embodiment, the configuration in which the pressure roller driving device 47 includes the electromagnet 472 has been described. However, the configuration is not limited to the electromagnet 472. For example, the current is supplied to counter the force of the spring member 471. A configuration having a motor for displacing the pressure roller 46 from the pressing position to the separation position may be used. In this case, the current control unit 474 controls the supply of current to the motor.

  DESCRIPTION OF SYMBOLS 1 Main frame, 2 Drive apparatus, 3 Step apparatus, 4 Moving handrail apparatus, 5 Pull-in detection apparatus, 11 Upper floor side horizontal part, 12 Lower floor side horizontal part, 13 Inclination part, 21 Drive machine, 22 Control part, 23 Drive Sprocket, 24 drive chain, 31 step sprocket, 32 driven sprocket, 33 step chain, 34 step, 41 handrail sprocket, 42 balustrade, 43 moving handrail, 44 drive roller, 45 transmission device, 46 pressure roller, 47 pressure roller drive Device, 471 Spring member, 472 Electromagnet, 473 Current supply unit, 474 Current control unit.

Claims (2)

A driving roller in contact with the moving handrail;
A pressure roller that is provided so as to sandwich the moving handrail together with the driving roller, and is displaced between a pressing position that presses the moving handrail toward the driving roller and a separated position that is farther from the driving roller than the pressing position; ,
A pressure roller driving device for displacing the pressure roller;
A pull-in detection device that detects the pull-in of foreign matter into the moving handrail pull-in port formed in the balustrade,
The drive roller and the pressure roller are opposed to each other in the thickness direction of the moving handrail,
The drive roller, the pressure roller, the pressure roller drive device, and the pull-in detection device are provided corresponding to each of the pair of moving handrails,
When one of the pull-in detection devices provided corresponding to the one of the pair of moving handrails detects the ingress of the foreign matter into the moving handrail retracting port, One of the pressure roller driving devices provided correspondingly displaces the pressure roller from the pressing position to the separated position, and the other pressure roller provided corresponding to the other moving handrail. The drive device is a passenger conveyor that keeps the position of the pressure roller at the pressed position.   The pressure roller driving device includes a spring member that pushes the pressure roller in a direction in which the position of the pressure roller is displaced from the separation position to the pressing position, and the current of the spring member that is applied to the force of the spring member. An electromagnet that reversely displaces the pressure roller from the pressing position to the separated position, a current supply unit that supplies current to the electromagnet, and a current control unit that controls supply of current from the current supply unit to the electromagnet. The current control unit causes the electromagnet to supply current to the electromagnet when the pull-in detection device detects pull-in of the foreign object into the moving handrail pull-in port. Passenger conveyor.

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