JP5730069B2 - Passenger conveyor - Google Patents

Description

  Embodiments of the present invention relate to passenger conveyors.

  Conventionally, a safety circuit of a passenger conveyor is provided with a plurality of safety devices, and these safety devices have limit switches, and the contacts of these limit switches are connected in series to form a safety circuit. And when any safety device operates, the limit switch of the safety device will be in an open circuit state (OFF state), and a passenger conveyor will stop.

  By the way, the inlet safety device, the skirt guard safety device, etc., when the foreign matter is removed without intervention by the administrator after the operation, the limit switch returns to the original state, and the safety circuit is changed from the open circuit state (OFF state). It automatically returns to the closed state (ON state).

  Therefore, although the passenger conveyor stops, even if the administrator tries to investigate the cause of the stop, the safety circuit has returned to its original state, and thus the cause could not be specified. Therefore, in patent document 1 and patent document 2, the display apparatus which displays the operated safety device is provided.

JP 2006-176284 A JP 2009-137746 A

  However, in the method of Patent Document 1, since the display contents are displayed as numbers, there is a problem that the administrator needs to check the safety device corresponding to the numbers from an instruction manual or the like.

  Moreover, in the method of patent document 2, it was necessary to operate a touch panel and to display a failure history screen, and there existed a problem that work took time.

  Therefore, in view of the above problems, the present invention provides a passenger conveyor that allows an administrator to easily identify the operated safety device even when the safety device is automatically restored.

An embodiment of the present invention operates when an abnormality is detected in a passenger conveyor and automatically returns when the abnormality is removed, and a key is inserted to activate the passenger conveyor. And a key switch for outputting a key signal, and when one safety device among the plurality of safety devices operates, the passenger conveyor is stopped, and related information relating to identification information corresponding to the operated safety device is stored in the storage unit. And a control device that outputs a broadcast signal including the identification information when the key signal is input after the stop, and broadcast information related to the identification information included in the broadcast signal when the broadcast signal is input. a broadcasting apparatus for, was closed, the broadcast device, the corresponding to the identification information the safety device each storage name message and the attachment site to the broadcast storage unit of When the broadcast signal is input from the control device, the name message and the attachment site corresponding to the identification information included in the broadcast signal are called from the broadcast storage unit, respectively, and the called name message and the attachment are called. A passenger conveyor that broadcasts a part as the broadcast information .

It is a schematic diagram which shows the whole structure of the escalator of Example 1 of this invention. It is a front view of the operation panel. FIG. 3 is a plan view as seen from the direction of the line AA in FIG. 2 and shows a state in which a key is inserted. Similarly, it is a block diagram of an escalator. It is a block diagram of the escalator of Example 2.

  Hereinafter, a passenger conveyor according to an embodiment of the present invention will be described with reference to the drawings. In this embodiment, an escalator will be used as a passenger conveyor.

  The escalator of Example 1 of this invention is demonstrated based on FIGS. 1-4.

(1) Structure of escalator As shown in FIG. 1, the truss (main frame) 2 of the escalator is provided in the building across the upper floor 1a and the lower floor 1b via the support fittings 2a and 2b. A driving device 3 is provided in the upper floor machine room at one longitudinal end of the truss 2. The drive device 3 has an electric motor 4 and a transmission mechanism not shown in the figure. A power drive chain 7 is connected to the electric motor 4 via a speed reduction mechanism 6, and a drive sprocket 8 is driven by the drive chain 7. .

  A driven sprocket 9 is provided in the lower floor machine room at the other longitudinal end of the truss 2, and an endless step chain 10 is wound around the drive sprocket 8 and the driven sprocket 9. A number of steps 11 are connected to each other at equal intervals.

  The front and rear wheels of the step 11 are attached to the front and rear, and these front and rear wheels roll on a guide rail including a forward guide rail, a return guide rail, and a reverse guide rail provided in the truss 2. By doing so, the multiple steps 11 circulate in conjunction with the movement of the step chain 10.

  The vicinity of the position where the step 11 is reversed serves as a passenger entrance / exit, and boarding / exit plates 12a, 12b are provided on the truss 2 at the entrance / exit. A balustrade 13 is erected on both sides of the truss 2 in the width direction. On the upper part of the balustrade 13, a handrail belt 14 that runs in synchronization with the step 11 is provided. The handrail belt 14 and the step 11 are driven and controlled by a control device 15 installed in the upper floor machine room. A broadcasting device 16 is also stored in the upper floor machine room.

  Below the upper and lower entrances of the balustrade 13 are provided operation panels 20a and 20b having key switches 22 and 23 for raising / lowering the escalator, stopping, and alarming by a buzzer, respectively, in the vicinity of the speaker 19a. , 19b are provided. The speakers 19 a and 19 b are electrically connected to the broadcasting device 16, and sound is output from the speakers 19 a and 19 b by the output from the broadcasting device 16.

  Although not shown in FIG. 1, the escalator has an operation panel 20a. Various safety devices such as an emergency stop button 21 provided in 20b, an inlet safety device, a skirt guard safety device, and a step abnormality detection device are provided. The inlet safety device is a safety device that detects that foreign matter has entered the inlet portion where the handrail belt 14 enters the escalator body. The skirt guard safety device has foreign matter caught in the gap between the skirt guard and the step 11. The step abnormality detection device is a safety device that detects an abnormality in the step 11.

(2) Configuration of Operation Panels 20a and 20b Next, the configuration of the operation panels 20a and 20b will be described with reference to FIG. 2 and FIG. FIG. 2 is a front view of the operation panels 20a and 20b, and FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2 and a key 24 inserted into the key switch 23.

  As shown in FIG. 2, an emergency stop button 21, a key switch 22, and a key switch 23 for stopping the operation of the escalator are provided on the operation panel 20a on the upper floor.

  The key switch 22 is a switch for selecting the operating direction of the escalator. When the key 24 is inserted into the key switch 22 and rotated to the left, the key switch 22 operates in the upward direction. That is, the key switch 22 also serves as an escalator activation switch.

  The key switch 23 has a buzzer sounding function for alerting the surroundings before driving the escalator and a function for stopping the escalator during driving. Specifically, when the key 24 is inserted into the key switch 23 and rotated to the left, the operating escalator stops, and when rotated to the right, the buzzer sounds before the escalator is operated.

  As shown in FIG. 3, a micro switch 25a is built in the key switch 23. When the key 24 is inserted to the back of the key switch 23 which is a rotatable position, the hinge portion of the micro switch 25a operates. The contact of the micro switch 25a is closed.

  The operation panel 20b on the lower floor has the same configuration.

(3) Electrical configuration of escalator Next, the electrical configuration of the escalator will be described with reference to FIG.

  Even if the safety device operates among the limit switches provided in various safety devices, the safety device will return to the contact without the intervention of the administrator if the cause of the abnormality that led to the operation is removed after the operation. Is hereinafter referred to as "automatic return type safety device". Examples of the automatic return type safety device include limit switches of emergency stop buttons 21 and 21 (contacts 26a and 26b), limit switches of inlet safety devices (contacts 26c, 26d, 26e and 26f), and skirt guard safety. The limit switch of the device (each contact 26g, 26h, 26i, 26j) and the limit switch (each contact 26k, 26m, 26n, 26q) of the step abnormality detection safety device.

  As shown in FIG. 4, the contacts 26 a to 26 q of the automatic return safety device are connected in series, and a signal indicating opening / closing is input to the control device 15 from each limit switch. In addition, micro switches 25 a and 25 b provided in the key switches 23 and 23 are connected in parallel, and a key signal which is an input signal thereof is input to the control device 15. Furthermore, a broadcasting device 16 is connected to the control device 15, and speakers 19 a and 19 b are connected to the broadcasting device 16.

  The storage unit of the control device 15 stores channels corresponding to the contact points 26a to 26q of each limit switch. For example, the limit switch of the emergency stop button 21 on the upper floor stores one channel indicating the attachment site and five channels indicating the name message corresponding to the limit switch of the emergency stop button 21 on the upper floor. The contact 26b stores two channels indicating the attachment site and five channels indicating the name message. When the safety device operates, the control device 15 outputs a channel number corresponding to the operated safety device to the broadcasting device 16 as a broadcast signal. Details will be described later.

  As shown in FIG. 4, messages corresponding to each channel are stored in the broadcast storage unit of the broadcast device 16. For example, one channel of the broadcast storage unit is “upstairs” that is an attachment site, and two channels are The name message “Emergency stop button has been activated” is stored in “lower floor”, which is an attachment site, and 5 channels, respectively.

  When a broadcast signal including a channel number is input, the broadcast device 16 outputs an attachment site and a name message corresponding to each channel. When different channel numbers are input from the control device 15 at the same time, the broadcasting device 16 outputs the channels in order from the channel with the smallest number. In that case, the timing for broadcasting the next channel is controlled to be after the broadcasting of the previous channel ends. With this control, for example, when a broadcast signal including channel numbers of 1 channel, 3 channel, and 7 channel is input simultaneously, the broadcasting device 16 operates the “upper floor”, “right side”, and “skirt guard switch”. . "

(4) Operation of Control Device 15 Next, the operation state of the control device 15 will be described.

  When one safety device operates, the contact of the limit switch is opened, and power is not supplied to the subsequent circuits. Therefore, the ascending operation contactor and the descending contactor provided on the rear side of the circuit with respect to the limit switch of the safety device are de-energized, and the power supply to the electromagnetic brake coil is also stopped. The descent operation stops.

  As an example, the case where the inlet safety device on the upper right side of the escalator is operated will be described.

  Since the contact 26c of the limit switch of the upper floor right side inlet safety device is in the open state, power is not supplied thereafter, and the input signal to the control device 15 is also lost. However, since power is supplied to the previous circuit, the signal 27 is input to the control device 15.

  The control device 15 stores the input signal of the safety device at the moment when one of the ascending operation signal and the descending operation signal of the escalator is deactivated as related information. In this case, an input signal up to the signal 27 is input, and the signal 27 is stored in the storage unit as related information.

  Since the escalator has stopped, the manager of the escalator needs to perform a restart to check whether the escalator can be operated. Therefore, the administrator operates the operation panel 19a or the operation panel 19b in order to restart. Here, it is assumed that the administrator operates the operation panel 19a on the upper floor side. As a normal operation procedure, the administrator needs to sound a buzzer to signal the start of operation. Therefore, the administrator inserts the key 24 into the key switch 23. When the key 24 is inserted into the key switch 23, the contact 25a of the micro switch is closed. Therefore, the control device 15 recognizes the key signal from the contact point 25a of the micro switch.

  The control device 15 determines that the safety device corresponding to the next input of the safety device corresponding to the signal 27 has been operated from the related information (that is, the signal 27) stored in the storage unit using the key signal as a trigger. To do. In this case, since the control device 15 has stored the signal 27, the control device 15 determines that the upper floor right side inlet safety device 26c, which is the next safety device, has been operated. Based on the determination result, the control device 15 outputs a broadcast signal including identification information (that is, a channel number) indicating the upper floor right inlet safety device to the broadcast device 16. In this case, the control device 15 outputs identification information for performing the output of 1 channel, 3 channels, and 6 channels to the broadcast device 16 in the broadcast signal.

  When a broadcast signal including identification information (channel number) is input from the control device 15, the broadcast device 16 calls messages stored in channels 1, 3, and 6 from the broadcast storage unit in order from the 1st channel, and the speaker. Output from 19a, 19b. From the speakers 19a and 19b, it is broadcasted that "the upper floor right inlet switch has operated".

  The control device 15 does not output an end signal until the broadcast device 16 is restarted. If the restart is performed, the control device 15 outputs an end signal, and the broadcast device 16 ends the broadcast. That is, this broadcast is repeated until the escalator is restarted.

  When the escalator is restarted, the broadcast of the broadcasting device 16 is finished, and the input signal 27 of the safety device at the moment when either the rising operation signal or the lowering operation signal stored in the storage unit of the control device 15 is de-energized. to erase. Whether the escalator has been restarted or not is recognized by the control device 15 when the administrator performs an operation such that the key 24 is inserted into the key switch 22 and is raised or lowered.

(5) Effect According to the present embodiment, the administrator simply inserts the key 24 into the key switch 23, and even if the automatic return type safety device is automatically restored, the administrator can easily operate it. Can identify the safety device.

  Next, an escalator according to a second embodiment of the present invention will be described with reference to FIG.

  In the first embodiment, audio broadcasting of the position and name of the operated safety device is performed from the upper and lower speakers 19a and 19b. However, in this embodiment, only the speaker on the side where the operation by the key switch 23 is performed is performed. Make audio broadcasts.

  As shown in FIG. 5, in this embodiment, micro switches 25a and 25b provided on the key switch 23 and relays 27a and 27b are connected, respectively, and the first contacts 28a1 and 28b1 among the contacts of the relays 27a and 27b. Is input to the control device 15, and the second contacts 28a2 and 28b2 are connected between the broadcasting device 16 and the speakers 19a and 19b.

  Thereby, it is possible to broadcast only from a speaker near the operation panel into which the key 24 is inserted.

  According to the present embodiment, the operated safety device can be broadcast only to the manager operating with the key 24, and the passengers in the vicinity of the other operation panel, that is, in the vicinity of the other boarding port are insecure. There is nothing.

Example of change

  In the above-described embodiment, the microswitch 25 is provided in the key switch 23. Alternatively, when the key 24 is formed of a magnetic material such as iron, a proximity sensor may be used.

  In each of the above embodiments, the escalator has been described as the passenger conveyor. However, the present embodiment can be similarly applied to a moving walk instead.

  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 15 ... Control apparatus, 16 ... Broadcast apparatus, 19 ... Speaker, 23 ... Key switch, 24 ... Key, 25 ... Micro switch, 26 ... Limit switch of safety device

Claims (7)

A plurality of safety devices that operate when an abnormality is detected on the passenger conveyor and automatically return when the abnormality is removed;
A key switch that outputs a key signal when a key is inserted to activate the passenger conveyor;
When one safety device of the plurality of safety devices operates, the passenger conveyor is stopped, related information relating to identification information corresponding to the operated safety device is stored in a storage unit, and the key signal is input after the stop A control device that outputs a broadcast signal including the identification information in the case of
When the broadcast signal is input, a broadcast device that broadcasts broadcast information related to the identification information included in the broadcast signal;
I have a,
The broadcasting device is:
The name message and attachment part of the safety device corresponding to the identification information are respectively stored in the broadcast storage unit,
When the broadcast signal is input from the control device, the name message and the attachment site corresponding to the identification information included in the broadcast signal are called from the broadcast storage unit, respectively, and the called name message and the attachment site are called. Broadcast as the broadcast information,
A passenger conveyor characterized by that. The key switch has a key detection switch operated by the key when the key is inserted to a rotatable position.
When the key detection switch operates, the key signal is output.
The passenger conveyor according to claim 1 . The key detection switch is a micro switch or a proximity switch.
The passenger conveyor according to claim 2 . The broadcast device broadcasts the broadcast information only from a speaker provided in the vicinity of the key switch to which the key signal is output.
The passenger conveyor according to any one of claims 1 to 3 , wherein The broadcast device repeatedly broadcasts the broadcast information until the passenger conveyor is activated after the key signal is output,
The passenger conveyor according to any one of claims 1 to 4 , wherein the passenger conveyor is provided. The control device erases the related information when the passenger conveyor is activated,
The passenger conveyor according to any one of claims 1 to 5 , characterized in that. The safety device is an emergency stop button, an inlet safety device, a skirt guard safety device, or a step abnormality detection device;
The passenger conveyor according to any one of claims 1 to 6 , characterized by the above.

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