JP4855095B2 - Passenger conveyor control device - Google Patents

Description

  The present invention relates to a control device for a passenger conveyor, and more particularly to a control device for a passenger conveyor that controls the stop timing of steps and handrails when an emergency stop of the passenger conveyor according to a safety device operation occurs.

In general, the steps of the passenger conveyor and the handrail are driven by the same electric motor. For this reason, the step and the handrail cannot be controlled independently, and when the handrail slips, a situation occurs in which the step and the handrail operate at different speeds different from the set values. In view of this, a passenger conveyor is known in which an electric motor that drives a step and an electric motor that drives a handrail are independent, and each driving speed is controlled in synchronization (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2001-220083

  The above-described conventional passenger conveyor controls the electric motor that drives the step and the electric motor that drives the handrail independently. However, in the case of emergency stop according to the safety device operation of the passenger conveyor, the step and hand The rails were stopped at the same time. For this reason, there was a risk that passengers would lose balance and fall down.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide a passenger conveyor control device that can stabilize the posture of a passenger at the time of emergency stop due to a safety device operation. .

To achieve the above object, the present onset Ming, and the step which is arranged in an endless, and the step electric motor for driving the footstep, and the step drive control means for controlling the footstep electric motor, wherein the step in the same direction In a passenger conveyor control device comprising: an endless handrail that travels to a vehicle; a handrail motor that drives the handrail; and a handrail drive control means that controls the handrail motor. and safety equipment operation detecting means for detecting that the safety device is operated by a driving direction detection means for detecting the operating direction of the passenger conveyor, if detecting that the safety device is operated by the safety device operation detecting means The driving direction of the passenger conveyor at that time is detected by the driving direction detecting means, and when the detected driving direction is the ascending driving, the step driving control is performed. A step stop command is issued to the means to stop the driving of the stepping motor to stop the step emergencyly, and after a predetermined time, a handrail stop command is issued to the handrail drive control means to stop the driving of the handrail motor. is characterized in that a footstep hand rail stop timing control means that controls so as to emergency stop the handrail.

According to the present invention configured as described above, when the step and the handrail are stopped in an emergency due to an abnormality of the passenger conveyor, the step / handrail stop timing control means is in the order of the step and then the handrail during the lift operation of the passenger conveyor. Stop at a predetermined time difference. As a result, the passenger grips the handrail during an emergency stop due to the operation of the safety device, so that the body is tilted upward, that is, toward the upper floor in the case of ascending operation, and thus prevents falling down. be able to.

  According to the present invention, the posture of the passenger is stabilized at the time of emergency stop due to the operation of the safety device of the passenger conveyor, and in particular, in both the ascending and descending operations, the passenger's body is inclined to be tilted upward at the time of emergency stop Therefore, it is possible to prevent the passenger from falling down and to improve the safety of the passenger conveyor.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a passenger conveyor control device according to the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an embodiment of a control device for a passenger conveyor of the present invention, and FIG. 2 is a flowchart showing a processing procedure of the control device.

  As shown in FIG. 1, the passenger conveyor of the present embodiment includes an endlessly arranged step 1, an endless handrail 2 that operates in the same direction as the step 1, and a stepper motor 3 that drives the step 1. , A handrail motor 4 that drives the handrail 2, a step drive control means 5 that controls the step motor 3, a hand rail drive control means 6 that controls the hand rail motor 4, and an abnormality of the passenger conveyor The safety device operation detecting means 7 for detecting that the safety device has not been operated, the driving direction detecting means 8 for detecting the driving direction of the passenger conveyor, and the detection results of the safety device operation detecting means 7 and the driving direction detecting means 8 Step / handrail stop timing control means 9 for stopping 1 and the handrail 2 with a predetermined time difference is provided.

  Hereinafter, the processing procedure of the passenger conveyor control device of the present embodiment will be described with reference to FIGS. 1 and 2.

  First, if any abnormality occurs during the operation of the passenger conveyor and the safety device operates, the safety device operation detecting means 7 detects the safety device operation as step S1, and the driving direction detecting means 8 as the step S2 operates the passenger conveyor. Detect direction. Thereafter, the step / handrail stop timing control means 9 issues a step stop command to the step drive control means 5 to stop the driving of the stepper motor 3 as shown in step S3U when the driving direction of the passenger conveyor is an ascending operation. Then, the step 1 is stopped, and then, as shown in step S4U, after a predetermined time has elapsed since the step stop command is issued, a hand rail stop control command is issued to the hand rail drive control means 6 to stop the driving of the hand rail motor 4. To stop the handrail 2.

  On the other hand, when the driving direction detection means 8 detects the descending operation of the passenger conveyor in step S2 described above, the step / handrail stop timing control means 9 first stops the handrail drive control means 6 in the handrail drive control means 6 as shown in step S3D. A command is issued to stop driving the handrail motor 4 and the handrail 2 is stopped. Then, as shown in step S4D, after a predetermined time has passed since the handrail stop command is issued, the step drive control means 5 is stopped. A command is issued to stop the driving of the stepping motor 3 to stop the step 1.

  In this way, the stop timing of the step 1 and the handrail 2 is controlled by the step / handrail stop timing control means 9, and when the passenger conveyor is lifted, the step 1 and then the handrail 2 are in this order, and the passenger conveyor is lowered. By stopping the handrail 2 and then the step 1 with a predetermined time difference, the passenger grips the handrail at the time of emergency stop by the safety device operation, so that the body is directed upward in both cases of ascending and descending operations. That is, it is inclined in the upper floor direction, and therefore it is possible to prevent a downward fall.

  As described above, according to the present embodiment, the posture of the passenger is stabilized at the time of emergency stop due to the operation of the safety device of the passenger conveyor. By urging inclining in the direction, the passenger can be prevented from falling down, and the safety of the passenger conveyor can be improved.

It is a block diagram which shows one Embodiment of the control apparatus of the passenger conveyor of this invention. It is a flowchart which shows the process sequence of a control apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Step 2 Hand rail 3 Step motor 4 Hand rail motor 5 Step drive control means 6 Hand rail drive control means 7 Safety device operation detection means 8 Driving direction detection means 9 Step / hand rail stop timing control means

Claims (1)

Steps arranged in an endless manner, stepping motors for driving the steps, step drive control means for controlling the stepping motors, endless handrails operating in the same direction as the steps, and the handrails In a passenger conveyor control device comprising a handrail motor for driving a handrail and a handrail drive control means for controlling the handrail motor,
Safety device operation detecting means for detecting that the safety device has been operated due to an abnormality of the passenger conveyor, driving direction detecting means for detecting the driving direction of the passenger conveyor, and that the safety device has been operated by the safety device operation detecting means. If detected, the driving direction of the passenger conveyor at that time is detected by the driving direction detecting means. If the detected driving direction is ascending operation, a step stop command is issued to the step driving control means to stops driving the motor emergency stop the footstep, the that controls so as to emergency stop the handrail stops driving of the motor for the hand rail emit a handrail stop command to the handrail drive control means after the predetermined time period A passenger conveyor control device comprising a step / handrail stop timing control means.

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