JP2013249148A - Passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor capable of surely detecting the fact that a foreign object is caught in a gap between a step and a skirt guard by a simple structure.SOLUTION: A passenger conveyor includes a detection part 14 for detecting the fact that a foreign object is caught in a gap between a step 7 and a skirt guard 9, and a control device 11 for performing operation control according to a detection signal outputted from the detection part 14. The detection part 14 is continuously extended along the skirt guard 9 to continuously detect the deflection of the skirt guard 9. The control device 11 outputs an operation stop command according to the detection of the deflection of the skirt guard 9 by the detection part 14 for a predetermined period of time or longer.

Description

  The present invention relates to a passenger conveyor.

  A passenger conveyor is generally connected endlessly, and a railing is provided on both sides along the traveling direction of the step of moving between the entrances and exits, and a skirt guard is disposed at the base of the railing. The side and the skirt guard face each other. Japanese Unexamined Utility Model Publication No. 62-189374 (Patent Document 1) is known as a background technique for detecting that a person or an object is caught in the gap between the step and the skirt guard. In this publication, a first area and a second area are set along the direction of travel of the step, the first area detects the contact of a passenger in the first area, and outputs a caution signal. It is described that there is provided detection means (tape switch) and second detection means (tape switch) that detects that a passenger is in contact in the second area and outputs a stop signal for stopping the passenger conveyor. Yes.

Japanese Utility Model Publication No. 62-189374

  However, in the above-described patent document, for example, even when the skirt guard is kicked by mischief, the tape switch detects contact with the passenger and performs a corresponding operation such as operation stop. As described above, there is a problem in that an instantaneous contact or the like with a low degree of danger cannot be determined, an unnecessary corresponding operation is performed, and driving efficiency is reduced.

  The present invention has been made from the actual situation in the above-described prior art, and an object of the present invention is to provide a passenger conveyor that can reliably detect that a foreign object has been caught in the gap between the step and the skirt guard with a simple structure. It is to provide.

  In order to achieve the above object, the present invention includes an endlessly connected step of moving between the entrances and exits, a balustrade erected on both sides of the step along the traveling direction of the step, and a base of the balustrade. A skirt guard disposed; a detection unit that detects that a foreign object is caught in a gap between the step and the skirt guard; and a control device that performs operation control according to a detection signal output from the detection unit. In the passenger conveyor provided, the detection unit includes a detection unit that extends continuously along the skirt guard and continuously detects the deflection of the skirt guard. An operation stop command is output in response to detecting the deflection of the skirt guard continuously over a period of time.

  In the present invention configured as described above, an operation stop command is output in response to the detection unit detecting the deflection of the skirt guard for a predetermined time or more. In this way, by detecting the deflection of the skirt guard over a predetermined time by the continuously extending detection unit, it is dangerous whether foreign matter is caught in the gap between the step requiring the operation stop operation and the skirt guard. It is possible to determine whether the skirt guard is bent at a low moment, and to prevent unnecessary response operations.

  According to the present invention, it is possible to determine an instantaneous skirt guard flexure with a low degree of danger, to prevent an unnecessary response operation, that is, a driving stop operation, and to improve driving efficiency and serviceability. . In addition, it has a simple structure of determining the continuous detection time of the detection unit, and it is assumed that there is no foreign object in the gap between the step that requires operation stop and the skirt guard, or that the skirt guard is bent at a low risk. Thus, more appropriate operation control can be realized without causing a significant increase in equipment cost.

It is a schematic block diagram which shows one Example of the passenger conveyor which concerns on this invention. It is a principal part expanded sectional view which shows the detection part with which the passenger conveyor of FIG. 1 is equipped. It is a flowchart which shows the operation | movement procedure of the passenger conveyor of FIG.

  Embodiments of a passenger conveyor according to the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, a passenger conveyor, for example, an escalator 1 includes a frame body 4 straddling the floor surface 2F of the lower floor 2 and the floor surface 3F of the upper floor 3, and a front wheel guide laid in the frame body 4. The rail 5 and the rear wheel guide rail 6, a plurality of steps 7 circulated and guided by the front wheel guide rail 5 and the rear wheel guide rail 6, and standing on both sides of the step 7 in the traveling direction. A balustrade 8, a skirt guard 9 disposed at the base of the balustrade 8, a movable handrail 10 that is guided to the periphery of the balustrade 8 and is driven to circulate in synchronization with step 7, and a drive device (not shown) that drives the step 7 The control device 11 controls the drive (operation) of the drive device.

  Step 7 is connected endlessly by a step chain. This step chain is formed between a drive sprocket 12 pivotally supported in the upper horizontal section of the frame body 4 and a driven sprocket 13 pivotally supported in the lower horizontal section. It is wrapped around The drive sprocket 12 is driven by a drive device controlled by the control device 11.

  In this embodiment, the following measures are taken to detect that a foreign object has been caught in the gap between the step 7 and the skirt guard 9. That is, as shown in FIGS. 1 and 2, a detection unit 14 that continuously extends along the skirt guard 9 and continuously detects the deflection of the skirt guard 9, in this example, a tape switch 14 is provided. At the same time, the control device 11 outputs an operation stop command to the drive device in response to the tape switch 14 detecting the deflection of the skirt guard 9 for a predetermined time or more, for example, 0.5 seconds or more. Yes. The tape switch 14 is interposed between the bracket 15 attached to the frame body 4 and the skirt guard 9.

  Next, the operation of the escalator 1 configured as described above will be described with reference to the flowchart shown in FIG.

  When a person or an object is caught in the gap between the step 7 and the skirt guard 9 during the operation of the escalator 1, as shown in step S1, the skirt guard 9 is pressed and bent, and the tape switch 14 serving as a detection unit is responded to this bending. And a detection signal is output to the control device 11. When the control device 11 determines in step S2 that the detection signal from the tape switch 14 has been output continuously for a predetermined time or longer, that is, 0.5 seconds or longer, the control device 11 performs step S3 to the drive device. The emergency stop signal is output, and the operation of the escalator 1 is stopped.

  On the other hand, for example, when the passenger kicks the skirt guard 9 with mischief, the skirt guard 9 is bent instantaneously by the impact, as shown in step S1, and the tape switch 14 is turned on in response to this bending, and the detection signal is It is output to the control device 11. However, the control device 11 determines in step S2 that the output duration of the detection signal from the tape switch 14 is a predetermined time or less, that is, 0.5 seconds or less, and sets the escalator 1 as shown in step S4. Continue driving. When such an instantaneous skirt guard 9 deflection is detected, a warning broadcast may be sent through a speaker or the like (not shown) to urge passengers to pay attention.

  According to this embodiment, by continuously detecting the deflection of the skirt guard 9 over a predetermined time by the tape switch 14 that is continuously extended, the step 7 and the skirt guard 9 that require the operation stop operation are detected. It is possible to discriminate whether the foreign matter in the gap is caught or whether the skirt guard 9 is bent at a moment with a low degree of danger, thereby preventing an unnecessary corresponding operation. As a result, an unnecessary response operation, that is, a driving stop operation can be prevented, and driving efficiency and serviceability can be improved. In addition, a simple structure in which the tape switch 14 is laid and the continuous detection time of the tape switch 14 is judged, and it is dangerous whether foreign matter is caught in the gap between the step 7 and the skirt guard 9 that require the operation stop operation. It is possible to determine whether the skirt guard 9 is bent at a low moment, so that more appropriate operation control can be realized without causing a significant increase in equipment cost.

  In the above-described embodiment, the operation stop operation is performed when the deflection of the skirt guard 9 is detected for 0.5 seconds or more. However, the present invention is not limited to this, and the continuous detection time of the deflection is 0. It can be set arbitrarily within the range of 5 to 1 second. Here, 0.5 seconds or more is used to determine the momentary deflection of the skirt guard 9 with a low degree of danger, and 1 second or less is the distance that the step 7 travels within 1 second. This is to ensure safety.

  The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to replace a part of the configuration of one embodiment with another configuration. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of the embodiment. Moreover, although the Example demonstrated the escalator as an example as a passenger conveyor, you may apply to the sidewalk which moves as an example of another passenger conveyor. In the present specification, the steps for mounting passengers include escalator steps, moving sidewalk pallets, and the like.

DESCRIPTION OF SYMBOLS 1 Escalator 7 Step 8 Parapet 9 Skirt guard 10 Moving handrail 11 Control apparatus 14 Tape switch (detection part)
15 Bracket

Claims (3)

A step connected endlessly, moving between the entrances and exits, a balustrade erected on both sides of the step along the direction of travel of the step, a skirt guard disposed at the base of the balustrade, the step and the skirt In a passenger conveyor provided with a detection unit that detects that a foreign object has been caught in the gap with the guard, and a control device that performs operation control according to a detection signal output from the detection unit,
The detection unit includes a detection unit that extends continuously along the skirt guard and continuously detects the deflection of the skirt guard, and the control unit is configured to detect the skirt for a predetermined time or more. A passenger conveyor that outputs an operation stop command in response to detection of bending of a guard.   The passenger conveyor according to claim 1, wherein the detection unit is a tape switch.   3. The passenger according to claim 1, wherein the control device outputs an operation stop command in response to the detection unit detecting the deflection of the skirt guard for 0.5 to 1 second or more. Conveyor.

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