JP2012144305A - Safety apparatus for passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety apparatus for a passenger conveyor that can effectively alarm passengers when the passengers step on a side edge of steps and approach a skirt guard.SOLUTION: The safety apparatus for the passenger conveyor includes: a plurality of steps that are coupled in a stepless state in a passenger conveyor body to be circularly driven; the skirt guard 5 that is provided in the passenger conveyor body along both sides of the steps; a step board edge 9 that is disposed in a protruding position that protrudes above a step surface in a normal state at the side edge in proximity of the skirt guard 5 of the step board 2a for forming the step surface of the step board, and provided to be vertically movable; a detection means 6 that detects that the step board side edge 9 moves below the protruding position and outputs a detection signal; and alarm means 7, 8 that give alarms to the passengers of the steps after receiving the detection signal.

Description

  The present invention relates to a safety device for passenger conveyors.

  A conventional passenger conveyor safety device is known that moves a side edge of a tread board up and down for the purpose of alerting passengers approaching a skirt guard (see, for example, Patent Document 1). In the device described in Patent Document 1, the side edge of the step is movable between a position substantially flush with the step surface of the step and a position protruding upward from the step surface. Moreover, the permanent magnet for moving a side edge part up and down is attached to both this movable side edge part side and the passenger conveyor main body side. Each time the passenger conveyor is operated and the side edge magnet passes near the magnet on the main body side, the side edge of the step moves up and down by the action of these magnets.

JP 2009-249096 A

  As described above, the conventional passenger conveyor safety device disclosed in Patent Document 1 moves the skirt guard up and down so that the side edges of the steps protrude from the tread surface when the passenger conveyor is operated. It is intended to call attention to passengers approaching.

  However, in such a conventional passenger conveyor safety device, there is a problem that it is not possible to call attention when a passenger has boarded in a state where the passenger has stepped on a side edge of a step which is a movable part. is there. There is also a problem that simply moving the side edge of the step up and down may not be recognized as a warning for some passengers.

  This invention was made in order to solve such a problem, and when a passenger gets on the side edge part of a step and approaches a skirt guard, the safety of the passenger conveyor which can perform effective alerting can be performed. Get the device.

  In the passenger conveyor safety device according to the present invention, a plurality of steps connected endlessly in the passenger conveyor body and driven to circulate, and a skirt provided on the passenger conveyor body along the left and right sides of the step A step plate side edge portion that is disposed on a side edge in the vicinity of the skirt guard of the guard and the step plate forming the step surface of the step so as to protrude upward from the step surface and is movable up and down. Detecting means for detecting that the side edge of the tread plate has moved downward from the protruding position and outputting a detection signal; and a warning for alerting passengers on the step upon receiving the detection signal And a stimulating means.

  In the passenger conveyor safety device according to the present invention, when a passenger gets on the side edge of the step and approaches the skirt guard, there is an effect that effective alerting can be performed.

It is a figure which shows the outline of the whole structure of the passenger conveyor provided with the safety device which concerns on Embodiment 1 of this invention. It is a side view of the step of a passenger conveyor provided with the safety device according to Embodiment 1 of the present invention. It is principal part sectional drawing in the normal time of the safety apparatus of the passenger conveyor which concerns on Embodiment 1 of this invention. It is principal part sectional drawing at the time of alerting of the safety device of the passenger conveyor which concerns on Embodiment 1 of this invention.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 to 4 relate to Embodiment 1 of the present invention. FIG. 1 is a diagram showing an outline of the overall configuration of a passenger conveyor, FIG. 2 is a side view of a step, and FIG. FIG. 4 and FIG. 4 are cross-sectional views of main parts at the time of alerting. In the following, an escalator will be described as an example of a passenger conveyor.

  In FIG. 1, 1 is an escalator main body which consists of trusses which comprise the basic framework of the escalator which conveys a user between the installed upper and lower floors. Inside the escalator body 1, a plurality of steps 2 on which passengers board are connected endlessly and circulated. These steps 2 are connected to each other by a step chain (not shown). The circulating movement is driven by the power of a drive motor (not shown) installed in the machine room in the escalator body 1 below the escalator entrance.

A balustrade 3 is erected on both the left and right sides of the escalator body 1, and an endless moving handrail 4 that circulates in synchronization with the step 2 is provided on the outer periphery of the balustrade 3.
Further, a skirt guard 5 (not shown in FIG. 1) is attached to the lower end portion of the balustrade 3 in the escalator body 1 so as to extend along the left and right sides of the step 2.

  A sensor 6, a speaker 7, and an audio device 8 are attached to the back side of the skirt guard 5 in the escalator body 1. These sensor 6, speaker 7, and audio device 8 are used to detect that a passenger has approached the skirt guard 5 and call attention. One set of these sensor 6, speaker 7 and audio device 8 may be provided for one escalator, or a plurality of sets may be provided with a predetermined interval. When a plurality of sets are provided, one audio device 8 may be shared by two or more sets of sensors 6 and speakers 7.

  FIG. 2 shows a side view of each step 2. A step board 2 a is attached to the upper surface of the step 2. A tread surface on which passengers board is formed by the upper surface of the tread plate 2a. Movable tread side edges 9 are respectively provided on both side edges of the tread 2a, that is, in a portion close to the skirt guard 5 of the tread 2a. These tread board side edge portions 9 are made of a rod-shaped member, and are provided over almost the entire length of the side edge of the tread board 2a. Specifically, first, groove-shaped notches 2b are respectively provided on both side edges of the tread 2a in accordance with the shape of the tread side edge 9. And the tread board side edge part 9 is each inserted in these notches 2b so that a vertical motion is possible.

  The footboard side edge portion 9 is elastically supported by a spring 10 in the notch 2b on both side edges of the footboard 2a. Here, a total of three springs 10 are used in the approximate center of the tread board side edge portion 9 and in the vicinity of both longitudinal ends. In a normal state (a state in which no load is applied to the upper surface of the tread side edge 9), the position where the upper surface of the tread side edge 9 protrudes upward from the upper surface (tread surface) of the tread 2a (hereinafter, “ It is arranged so as to be “projection position”.

  Further, a protrusion 11 is provided on the lower surface of the tread board side edge portion 9 so as to protrude downward. Here, the protrusion 11 is inserted inside the spring 10 at the substantially center of the springs 10 that support the tread plate side edge 9, and is further inserted into a hole formed in the lower surface of the tread plate 2a. It is provided as follows. In the normal state, that is, in a state where no load is applied to the upper surface of the tread side edge 9 and the tread side edge 9 is in a protruding position protruding above the tread 2a. The length is adjusted such that the lower end of the protrusion 11 does not protrude below the lower surface of the tread plate 2a. Then, when a load is applied to the upper surface of the tread board side edge portion 9 and the tread board side edge portion 9 is pushed downward, the protrusion 11 protrudes below the lower surface of the tread board 2a.

  A sensor 6 provided on the skirt guard 5 detects a protrusion 11 protruding downward from the lower surface of the tread 2a. A state of detection by the sensor 6 will be described with reference to FIGS. 3 and 4. FIG. 3 shows the state of the passenger conveyor safety device configured as described above in a normal state, and FIG. 4 shows the state at the time of alerting. The sensor 6 is constituted by an optical sensor, for example. From this optical sensor, a light beam used for detection of the detection target is emitted along the lower surface of the step board 2a of the step 2 passing in front of the sensor 6.

  As described above, in a normal state where no load is applied to the upper surface of the tread plate side edge portion 9, the tread plate side edge portion 9 is in the protruding position by the elastic force of the spring 10 and protrudes upward from the upper surface of the tread plate 2a. Yes. In this state, the lower end of the protrusion 11 does not protrude downward from the lower surface of the tread 2a. Therefore, the light beam 6a emitted from the sensor 6 is not reflected by the protrusion 11, and the sensor 6 remains in an inoperative state (FIG. 3).

  For example, when the passenger's shoes 12 approach the skirt guard 5 and are placed on the upper surface of the tread board side edge portion 9, a load is applied to the upper surface of the tread board side edge portion 9, and the tread board side edge portion 9 is pushed downward. When the step board side edge portion 9 is pushed downward, the protrusion 11 protrudes below the lower surface of the step board 2a. When the step 2 in a state in which the protrusion 11 protrudes below the lower surface of the tread 2a passes through the front of the sensor 6 (detection range of the sensor 6), the light beam 6a from the sensor 6 is reflected by the protruding protrusion 11 It is reflected by. The sensor 6 detects the light reflected by the protruding protrusion 11.

  The sensor 6 that detects the light reflected by the protrusion 11 is activated and outputs a detection signal to the audio device 8. The audio device 8 that has received this detection signal alerts the passenger on the step 2 by issuing a predetermined alert sound 13 from the speaker 7 (FIG. 4). This alerting sound 13 may be, for example, a message such as “Please get in the middle of the step” or a warning sound such as a simple buzzer sound.

  In addition, the coating material which reflects the light of a specific wavelength may be apply | coated to the protrusion 11, and the sensor 6 may output a detection signal, when the light of this specific wavelength is detected. By doing in this way, the misdetection of the sensor 6 by reflected light from things other than the projection body 11 can be prevented.

  Also, here, when it is detected that the passenger has approached the skirt guard 5, the voice is alerted to the passenger, but this is alerted by means of visually appealing the passenger. You may do it. That is, for example, a warning lamp made of light emitting means such as a light emitting diode (LED) may be provided on the skirt guard 5 instead of the speaker 7 or together with the speaker 7. And when it detects that a passenger approached the skirt guard 5, it can alert a passenger on the step 2 by making this warning lamp light-emit.

  Furthermore, the step board side edge portion 9 may also serve as a side demarcation member of the step 2.

  The passenger conveyor safety device configured as described above is disposed on the side edge in the vicinity of the skirt guard of the tread that forms the tread surface of the step at a protruding position that protrudes above the tread surface during normal times, and can move up and down. A treadboard side edge provided on the sensor, a sensor which is a detection means for detecting that the treadboard side edge has moved downward from the protruding position and outputs a detection signal, and a detection signal output from the detection means. And an audio device and a speaker, which are alerting means for alerting passengers on the steps. For this reason, when the passenger gets on the side edge of the step and approaches the skirt guard, effective alerting can be performed.

  In addition, by providing a sensor as a detection means on the skirt guard side and detecting that the step board side edge of the step passing through the detection range of the sensor has moved downward from the protruding position, a plurality of steps are provided. It is possible to detect that a passenger has entered the side edge of the step and approached the skirt guard without providing a sensor for all of the steps, simplifying the overall configuration of the device and reducing manufacturing costs, etc. It is possible.

  Furthermore, by using a speaker or warning lamp provided on the skirt guard as the alerting means, it is possible to more effectively alert the passenger who gets on the side edge of the step and approaches the skirt guard.

DESCRIPTION OF SYMBOLS 1 Escalator main body 2 Step 2a Step board 2b Notch part 3 Parapet 4 Moving handrail 5 Skirt guard 6 Sensor 6a Light beam 7 Speaker 8 Audio | voice device 9 Tread board side edge part 10 Spring 11 Projection body 12 Passenger shoes 13 Warning sound

Claims (6)

A plurality of steps connected endlessly in the passenger conveyor body and driven to circulate;
A skirt guard provided on the passenger conveyor body along the left and right sides of the step;
A step plate side edge portion of the step plate forming the step surface of the step, disposed on a side edge in the vicinity of the skirt guard, at a protruding position protruding above the step surface in a normal state, and provided so as to be movable up and down;
Detecting means for detecting that the step board side edge has moved downward from the protruding position and outputting a detection signal;
A passenger conveyor safety device comprising: an alerting means for receiving the detection signal and alerting a passenger on the step. The detection means includes a sensor provided on the skirt guard,
2. The passenger conveyor according to claim 1, wherein the sensor detects that the step board side edge portion of the step that passes through a detection range of the sensor has moved downward from the protruding position. 3. Safety device. On the lower surface of the tread board side edge, provided with a protrusion provided to protrude downward,
The safety device for a passenger conveyor according to claim 2, wherein the sensor detects that the tread board side edge portion has moved downward from the protruding position by detecting the protrusion. The protrusion is coated with a paint that reflects light of a specific wavelength on its surface,
The said sensor is an optical sensor which detects the light of the said specific wavelength, The safety device of the passenger conveyor of Claim 3 characterized by the above-mentioned.   The said alerting means is provided in the said skirt guard, and provided with the speaker which alerts the said passenger on the said step by uttering an audio | voice. Safety device for passenger conveyor as described in 1.   The said alerting means is provided in the said skirt guard, The warning lamp which alerts with respect to the said passenger on the said step by lighting is provided, The warning lamp of any one of Claim 2-5 characterized by the above-mentioned. Safety device for passenger conveyor as described in 1.

Images