JP2011190045A - Passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a passenger conveyor preventing catching any foreign matter in an inlet part, rapidly taking out foreign matter even when any foreign matter is caught at the inlet part, and ensuring adequate operation thereof. <P>SOLUTION: A control device determines whether or not the signal length of first and second detection signals output from first and second detection means reaches the preset reference value. If it is determined that the signal length of the detection signals does not reach the reference value, an alarm is generated from an alarming device while continuing the drive of a step 2 and a movable handrail 5. If it is determined that the signal length of the detection signals has reach the reference value, the drive of the step 2 and the movable handrail 5 is stopped. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to passenger conveyors such as escalators and moving walkways, and more particularly to a safety device for preventing pull-in provided in an inlet portion of a railing.

  A safety device called an inlet safety device is provided in an inlet portion of the balustrade constituting the passenger conveyor in order to prevent foreign objects from being pulled in by a moving handrail. Conventionally, as this type of safety device, a protrusion-like structure made of a conductive elastic body is provided at the inlet, and when the human body approaches or comes into contact with this structure, the capacitance of the human body is large. It is known that the detection device detects the change in capacitance due to the intrusion of the human body between the protruding structure and the ground, or the voltage of the hum noise superimposed on the human body, and generates an alarm sound, etc. (For example, refer to Patent Document 1). Further, the inlet part is provided with an inlet protector that fills a gap between the inlet part and the moving handrail, and the deformation is detected so that the inlet protector deforms in a direction perpendicular to the surface of the moving handrail. A detecting means; and a displacement detecting means for detecting a movement of the inlet protector in the moving direction of the handrail, wherein either the deformation detecting means or the displacement detecting means detects the deformation or displacement of the inlet protector. In some cases, the driving of the passenger conveyor is stopped (see, for example, Patent Documents 2 and 3).

JP-A-5-330778 JP 2008-285283 A JP 2007-302397 A

  The inlet safety device described in Patent Document 1 generates an alarm sound or the like to alert a passenger when a human body approaches or comes into contact with a protruding structure made of a conductive elastic body. It has the effect of preventing the human body from approaching the part and preventing the human body from being caught in the inlet part, but since no countermeasures are taken into account when the pinch has occurred, There is a problem that it is difficult to take measures such as quick removal.

  On the other hand, the inlet safety device described in Patent Documents 2 and 3 is sandwiched because the driving of the passenger conveyor is stopped when either the deformation detection means or the displacement detection means detects the deformation or displacement of the inlet protector. Although it is easy to take measures such as quickly taking out foreign objects, the passenger conveyor drive is also stopped when foreign objects, such as passenger baggage that is not likely to be caught in the inlet, come into contact with the inlet protector. The frequency with which the passenger conveyor is driven and stopped is high, and there is a problem that proper operation of the passenger conveyor is difficult. That is, since the inlet safety device is disposed in the vicinity of the getting-on / off floor, the contact of the foreign object with the inlet protector occurs on a daily basis. Therefore, if the driving of the passenger conveyor is stopped each time a foreign object comes into contact with the inlet protector, the frequency of the passenger conveyor being in a driving stop state increases, and passenger convenience is impaired.

  The present invention has been made in view of such a state of the art, and the purpose thereof is to prevent foreign matter from being caught in the inlet portion, and in the unlikely event that foreign matter is caught in the inlet portion. It is another object of the present invention to provide a passenger conveyor that can quickly remove foreign matters and can ensure proper operation of the passenger conveyor.

  In order to solve the above-mentioned problem, the present invention provides a moving handrail that moves endlessly along the outer periphery of the balustrade, a step that moves endlessly in synchronization with the moving handrail, and an inlet portion of the balustrade A protruding structure that prevents foreign matter from entering the inlet portion, first detection means that detects movement of the protruding structure that is displaced in a direction perpendicular to the surface of the handrail, and Second detection means for detecting the movement of the protruding structure displaced in the moving direction of the moving handrail, an alarm device for issuing an alarm to a passenger, a first detection signal output from the first detection means, and A control device is provided for inputting a second detection signal output from the second detection means and controlling driving and stopping of the moving handrail, the step, and the alarm device, and the control device includes the first detection signal. And the second detection signal It is determined whether or not the signal length has reached a preset reference value, and if it is determined that the signal lengths of the first detection signal and the second detection signal have not reached the reference value, the movement When the alarm device issues an alarm while continuing to drive the handrail and the step, and when it is determined that the signal lengths of the first detection signal and the second detection signal have reached the reference value, The moving handrail and the step are stopped.

  Many cases where a passenger's baggage accidentally collides with the protruding structure installed in the inlet or touches the protruding structure for the purpose of mischief are instantaneous. The first detection signal and the second detection signal having a short signal length are output from the two detection means. On the other hand, when the protruding structure continues to be touched for mischief or when a foreign object is actually sandwiched between the moving handrail and the protruding structure, the protruding structure is often used. Is continuously deformed, and the first detection signal and the second detection signal are continuously output from the first detection means and the second detection means. Therefore, it is possible to set a reference value between the signal length when a passenger's baggage accidentally collides with a protruding structure and the signal length when a foreign object is caught. Based on the value, the alarm device, the moving handrail and the step can be controlled. And when the signal length of the 1st detection signal and the 2nd detection signal output from the 1st detection means and the 2nd detection means is short, the state where passenger's baggage etc. collided with the protruding structure carelessly, Since it can be determined that the state has been touched for mischief, it is possible to call the passengers attention by issuing an alarm from the alarm device, and to prevent foreign objects from being caught in the inlet. Further, in this case, the driving of the moving handrail and the step is not stopped, so that proper operation of the passenger conveyor can be ensured. On the other hand, when the signal lengths of the first detection signal and the second detection signal output from the first detection means and the second detection means are long, it is determined that the state of being touched due to mischief or the presence of foreign objects has occurred. Therefore, by immediately stopping the movement of the moving handrail and the step, it is possible to quickly take measures such as prevention of pinching and removal of the trapped foreign matter.

  According to the present invention, in the passenger conveyor configured as described above, when the control device stops driving the moving handrail and the step, the control device drives the alarm device and issues an alarm from the alarm device. .

  According to such a configuration, it is possible to notify the staff and passengers that the moving handrail and the step have stopped, so that appropriate measures can be taken quickly.

  According to the present invention, in the passenger conveyor configured as described above, the control device continues the alarm issued from the alarm device when the driving of the moving handrail and the step is stopped, and the driving of the moving handrail and the step. In such a state, the alarm issued from the alarm device is made different.

  According to this configuration, it is possible to accurately notify the staff and passengers of the content of the trouble that has occurred on the passenger conveyor, so that appropriate measures can be taken more quickly.

  In the present invention, the control device determines whether the signal lengths of the first detection signal and the second detection signal output from the first detection unit and the second detection unit have reached a preset reference value, When it is determined that the signal length of each of these signals has not reached the reference value, the alarm device is driven while the moving handrail and the step are continuously driven, so that proper operation of the passenger conveyor is ensured. However, it is possible to call attention to passengers and prevent foreign objects from being caught in the inlet. In addition, when it is determined that the signal length of each signal has reached the reference value, the moving handrail and the step are stopped, so it is possible to quickly take measures such as removal of the trapped foreign matter. The safety of the passenger conveyor can be increased.

It is a perspective view of boarding / exiting vicinity of a passenger conveyor concerning an embodiment. It is a figure which shows the attachment state of the safety device which concerns on embodiment. It is a figure which shows the structure of the safety device which concerns on embodiment. It is a wave form diagram which compares and shows the signal when the trapping output from the 1st and 2nd detection means concerning an embodiment has occurred, and when it has not occurred.

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

  As shown in FIG. 1, the passenger conveyor of the present embodiment includes a boarding / exiting floor 1 installed on a floor surface of a building structure, steps 2 connected endlessly between the boarding / exiting floors 1, and a building structure. It is attached to a frame (not shown) installed on the object and moves endlessly along the outer periphery of the balustrade 3 arranged on the left and right sides of the step 2, the deck 4 provided at the lower part of the balustrade 3, and the balustrade 3 A moving handrail 5, an inlet portion 6 which is an entry portion of the moving handrail 5 opened at the end of the deck 4, and a safety device 7 installed in the inlet portion 6 are provided. The steps 2 and the moving handrail 5 are driven in synchronization with one direction by a driving device (not shown).

  As shown in FIGS. 2 and 3, the safety device 7 is displaced vertically downward with respect to the protruding structure 11 disposed around the moving handrail 5 in the inlet portion 6 and the surface of the moving handrail 5. The first detection means 12 for detecting the movement of the protruding structure 11 to be detected, the second detection means 13 for detecting the movement of the protruding structure 11 displaced in the moving direction of the moving handrail 5, and an alarm for passengers , The first detection signal s1 output from the first detection means 12 and the second detection signal s2 output from the second detection means 13 are input to drive the alarm device 14 and a driving device (not shown). -It has the control apparatus 15 which controls a stop.

  The projecting structure 11 functions as an operation member for the first and second detection means 12 and 13 and prevents foreign matter from entering the inlet portion 6, and the foreign matter sandwiched between the inlet portions 6. It is formed of a material having an appropriate rigidity so that the external force can be reliably transmitted to the first and second detection means 12 and 13. An example of this type of material is rubber. Moreover, regarding the external structure of the projecting structure 11, as shown in FIG. 1 and FIG. 2 of Patent Document 1, a plurality of rod-shaped members can be combined in a hook shape. As shown in FIG. 3, a movable piece 11a is integrally suspended from the lower surface of the projecting structure 11, and first and second operation pieces to be described later are pressed on the side surface of the movable piece 11a. An operation projection 11b for mounting is integrally attached.

  As the first detection means 12 and the second detection means 13, push switches can be used. As shown in FIGS. 2 and 3, each of these detecting means 12 and 13 is attached to a bracket 16 fixed to the inner surface of the deck 4 or a frame of a passenger conveyor (not shown). The first detection means 12 is attached to the bracket 16 with the pressure receiving portion 12 a facing the moving handrail 5. The second detection means 13 is attached to the bracket 16 with the pressure receiving portion 13a opposed to the operation protrusion 11b. The bracket 16 is provided with a first operating piece 17 for operating the first detecting means 12 and a second operating piece 18 for operating the second detecting means 13 so as to be swingable. Both ends of the operation piece 17 are arranged at a position facing the operation protrusion 11b and a position facing the pressure receiving portion 12a of the first detection means 12, respectively. On the other hand, one end of the second operation piece 18 is disposed between the operation protrusion 11 b and the pressure receiving portion 13 a of the second detection means 13.

  When a foreign object is sandwiched between A between the moving handrail 5 and the protruding structure 11, the tip of the lower side of the protruding structure 11 is displaced in the direction of arrow B, and the entire protruding structure 11 is moved. Is displaced in the direction of arrow C. Therefore, in this case, the operation protrusion 11b formed integrally with the protrusion-like structure 11 is raised from the original position, and the first operation piece 17 is swung to operate the first detection means 12. The second operating piece 18 is swung by the operating projection 11b, and the second detecting means 13 is operated. On the other hand, when a foreign object collides with the tip of the projecting structure 11, the projecting structure 11 is normally displaced only in the direction of the arrow C, so that the second operation piece 18 is moved by the operation projection 11b. The second detection means 13 is operated by swinging. Of course, depending on the collision direction of the foreign matter, both the first and second detection means 12 and 13 are operated.

  In addition, the setting positions of the first detection means 12 and the second detection means 13 with respect to the protruding structure 11 can be appropriately set at positions where the safety of passengers can be secured and proper operation of the passenger conveyor is not hindered. Adjusted. That is, the closer the setting positions of the first detection means 12 and the second detection means 13 are to the setting position of the protruding structure 11, the higher the detection sensitivity of the movement of the protruding structure 11 can be. Although safety can be improved, on the other hand, since the frequency of stopping the steps 2 and the handrail 5 is increased, proper operation of the passenger conveyor becomes difficult. On the contrary, when the setting positions of the first detection means 12 and the second detection means 13 with respect to the protruding structure 11 are increased, the profit and loss are opposite to this. Therefore, the setting positions of the first detection means 12 and the second detection means 13 with respect to the protruding structure 11 are determined at appropriate positions in consideration of these.

  As the alarm device 14, an arbitrary alarm device belonging to a publicly known one such as a device that emits an alarm sound such as a buzzer or a chime, a device that emits an alarm by sound, a device that performs warning display with light, or a combination thereof, is used. Can do.

  The control device 15 stores a reference value t (see FIG. 4) of a preset signal length, and the signal length of the first detection signal s1 input from the first detection means 12 and the input from the second detection means 13. It is determined whether or not the signal length of the second detection signal s2 has reached the reference value.

  The reference value t is set as follows. That is, most of the cases where a passenger's baggage accidentally collides with the protruding structure 11 installed in the inlet portion 6 are instantaneous, and the first detection means 12 and the second detection means 13 As shown in FIG. 4A, a pulse-like first detection signal s1 and second detection signal s2 having a short signal length are output. Note that when only an external force parallel to the moving direction of the moving handrail 5 acts on the protruding structure 11, the first detection signal s1 is not output. On the other hand, when a foreign object is actually sandwiched between the moving handrail 5 and the protruding structure 11, as shown in FIG. 4B, the first detection signal s1 and the second detection signal s2 is continuously output. The reference value t set in the control means 15 is the first detection signal s1 and the second detection signal s2 when a passenger's baggage accidentally collides with the protruding structure 11 or when mischief or pinching occurs. Is set to a value longer than the signal lengths of the first detection signal s1 and the second detection signal s2 when a passenger's baggage accidentally collides with the protruding structure 11. As a result, the control unit 15 determines whether the passenger's baggage or the like has inadvertently collided with the protruding structure 11 from the output signals s1 and s2 of the first detection unit 12 and the second detection unit 13, or the foreign object is caught. It is possible to clearly determine whether or not this has occurred.

  When it is determined that the signal lengths of the input first detection signal s1 and second detection signal s2 have not reached the reference value t, the control unit 15 continues the driving of the step 2 and the moving handrail 5 and issues an alarm device. 14 is driven and a warning is issued to the passenger. Accordingly, it is possible to call attention to the passenger, prevent the foreign object from being caught in the inlet portion 6, and do not stop the driving of the step 2 and the moving handrail 5 so that the passenger conveyor can be properly operated. Operation can be secured.

  On the other hand, when it is determined that the signal lengths of the input first detection signal s1 and second detection signal s2 have reached the reference value t, the control unit immediately stops driving the step 2 and the moving handrail 5. As a result, even if foreign objects are caught, foreign object removal processing and the like can be performed quickly, so that damage to the foreign objects and the passenger conveyor can be minimized.

  When driving of the step 2 and the moving handrail 5 is stopped, it is particularly desirable to drive the alarm device 14 in conjunction with this to issue an alarm to passengers and staff. According to such a configuration, it is possible to notify the staff and passengers that the step 2 and the moving handrail 5 have stopped, or that pinching has occurred, so that appropriate measures can be taken quickly.

  Further, the control device 15 issues an alarm issued from the alarm device 14 when driving of the step 2 and the moving handrail is stopped, and an alarm issued from the alarm device 14 in a state where the driving of the step 2 and the moving handrail 5 is continued. It can also be configured to be different. According to such a configuration, it is possible to accurately notify the staff and passengers of the content of the trouble that has occurred on the passenger conveyor, so that appropriate measures can be taken more quickly.

  The present invention can be used for passenger conveyors such as escalators and moving walkways.

DESCRIPTION OF SYMBOLS 1 Boarding / alighting 2 Step 3 Parapet 4 Deck 5 Moving handrail 6 Inlet part 7 Safety device 11 Protruding structure 11a Movable piece 11b Operation protrusion 12 1st detection means 12a Pressure receiving part 13 2nd detection means 13a Pressure receiving part 14 Alarm device 15 Control device 16 Bracket 17 First operation piece 18 Second operation piece s1 First detection signal s2 Second detection signal t Reference value

Claims (3)

A moving handrail that moves endlessly along the outer periphery of the balustrade, a step that moves endlessly in synchronization with the moving handrail, and an inlet portion of the balustrade to prevent entry of foreign matter into the inlet portion Protruding structure to be prevented, first detecting means for detecting movement of the projecting structure that is displaced in a direction perpendicular to the surface of the moving handrail, and the protrusion that is displaced in the moving direction of the moving handrail Second detection means for detecting the movement of the structure, an alarm device for issuing a warning to the passenger, a first detection signal output from the first detection means, and a second output from the second detection means A control device that inputs a detection signal and controls the driving and stopping of the moving handrail and the step and the alarm device;
The control device determines whether or not signal lengths of the first detection signal and the second detection signal have reached a preset reference value, and signal lengths of the first detection signal and the second detection signal Is determined not to reach the reference value, the alarm device issues an alarm while continuing to drive the moving handrail and the step, and the first detection signal and the second detection signal When it is determined that the signal length of the vehicle has reached the reference value, driving of the moving handrail and the step is stopped.   2. The passenger conveyor according to claim 1, wherein the control device issues an alarm from driving the alarm device even when driving of the handrail and the step is stopped. 3.   The control device issues an alarm issued from the alarm device when driving of the moving handrail and the step is stopped, and issues an alarm from the alarm device while continuing to drive the moving handrail and the step. The passenger conveyor according to claim 2, wherein the alarm is different from the warning.

Images