JP5791210B1 - Passenger conveyor - Google Patents

Abstract

A passenger conveyor capable of reliably melting snow in the vicinity of a passenger entrance of a passenger conveyor is provided. A nozzle 62 is provided at an entrance of a skirt guard 44 and blows water to an entrance / exit plate 32, a comb 33, an infrared sensor 60 for measuring the presence / absence of snow at the entrance / exit, and before the operation of a step 30 is started. The infrared sensor 60 has a control device 50 that blows out water from the nozzle 62 when snow is measured. [Selection] Figure 2

Description

  Embodiments of the present invention relate to passenger conveyors.

  Passenger conveyors such as escalators and moving walkways may be provided outside in cold regions. In this case, if the snow is piled up near the entrance / exit of the passenger conveyor, the passenger slips and it is dangerous. Conventionally, a snow removal device for the floor near the entrance / exit has been proposed. For example, a comb provided at the front end of the boarding / exiting plate is formed of a material having excellent flat heat conductivity, and a thermal body is directly attached to the comb to warm the comb and remove snow near the entrance / exit.

Japanese Patent Laid-Open No. 10-182044

  The device that warms the comb as described above and removes snow has the problem that the comb portion can melt the snow, but it cannot melt the snow that has accumulated on the surrounding steps and boarding boards. .

  Then, in view of the said problem, embodiment of this invention aims at providing the passenger conveyor which can melt | dissolve the snow near the entrance / exit of a passenger conveyor reliably.

Embodiments of the present invention include a pair of left and right balustrades provided on both sides of a step, a skirt guard provided at a lower part of the pair of left and right balustrades, and an entrance / exit of the skirt guard. Or a nozzle that blows water toward the step, a snow sensor that measures the presence / absence of snow at the entrance / exit, and when the snow sensor measures snow before the step starts operation, It is a passenger conveyor which has a control part which blows off water, and a heater which is provided in the skirt guard in the entrance / exit, and dries the water blown out from the nozzle .

Explanatory drawing of the escalator of this embodiment. The side view of the entrance / exit on the upper floor side. The perspective view of the entrance / exit on the upper floor side. The block diagram which shows the electrical constitution of an escalator. The flowchart which shows the control method at the time of snow removal.

  Hereinafter, a passenger conveyor according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, the escalator 10 will be described with reference to FIGS.

(1) Escalator 10
The structure of the escalator 10 will be described with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as seen from the side.

  A truss 12 of the escalator 10 is supported using support angles 2 and 3 across the upper and lower floors of the building 1.

  A driving device 18 is provided inside the upper floor machine room 14 at the upper end of the truss 12. The drive device 18 includes a motor 20 including an induction motor (induction motor) and a drive chain 22 operated by the motor 20, and a drive sprocket 24 is rotated by the drive chain 22. Further, a control device 50 is provided inside the machine room 14 on the upper floor side.

  A driven sprocket 26 is provided inside the lower floor side machine room 16 at the lower end of the truss 12, and a pair of left and right endless step chains 28, 28 are spanned between the drive sprocket 24 and the driven sprocket 26. A plurality of steps 30 are attached at equal intervals to the pair of left and right step chains 28, the wheels 30 a of the steps 30 travel on a guide rail (not shown), and the rear wheels 30 b travel on the guide rail 25.

  On the left and right sides of the truss 12, a pair of left and right balustrades 36, 36 are erected. A handrail belt 38 moves on top of the balustrade 36. A front skirt guard 40 is provided to cover the lower front part of the upper floor side of the balustrade 36, and a lower front skirt guard 42 is provided at the lower front part of the lower floor side. Inlet portions 46 and 48 which are the entrances and exits of the belt 38 protrude. A skirt guard 44 is provided at the lower side of the balustrade 36.

  An entrance / exit board 32 on the upper floor side is provided at the entrance / exit of the ceiling surface of the machine room 14 on the upper floor side, a comb 33 is provided at the tip of the entrance / exit board 32, and A boarding board 34 on the lower floor side is provided at the boarding gate, and a comb 35 is provided at the front end of the boarding board 34.

(2) Structure of the entrance / exit Next, the skirt guard 44 at the entrance / exit will be described with reference to FIGS. 2 and 3 by taking the skirt guard 44 on the right side of the upper floor as an example.

  The skirt guard 44 located on both sides of the boarding board 32 and the comb 33 on the upper floor side is provided with an operation panel 52, an infrared sensor 60, a water discharge section 64 having a plurality of nozzles 62, a far infrared heater 66, and a speaker 54. Yes. Note that these devices are not provided in the skirt guard 44 on the right side of the upper floor.

  The operation panel 52 is provided on the skirt guard 44 closest to the front skirt guard 40. The operation panel 52 is provided with an operation key 68, a stop key 70, an illumination key 72, and a temperature sensor 74. When the operation key 68 is inserted into the key held by the administrator and turned to the right, the step 30 of the escalator 10 is raised, and the operation key 68 is lowered to the left. When the stop key 70 is inserted and rotated, the escalator 10 stops and a buzzer sounds before stopping. When the administrator inserts the key and rotates the illumination key 72, the illumination device 73 (see FIG. 4) provided in the balustrade 36 is turned on. The temperature sensor 74 measures the outside air temperature near the entrance / exit where the operation panel 52 is located.

  The infrared sensor 14 is provided on the skirt guard 44 located on the step side 30 with respect to the operation panel 56 and has a vertically long rectangle. The infrared sensor 14 emits infrared light continuously in the vertical direction, detects the presence or absence of snow accumulation by the reflected light, and measures the height of snow accumulation.

  The water discharge portion 64 is provided on the skirt guard 44 located on the step side 30 relative to the infrared sensor 60. A plurality of (for example, eight) nozzles 62 are provided in the water discharge section 64, and each discharges water for melting snow. When water is blown out from the nozzle 62, it is blown out in the form of a shower and sprayed with water. Thereby, water can be blown off to the floor surface between the pair of left and right skirt guards 44 to melt the snow.

  The far-infrared heater 66 is provided below the water discharge unit 64 and has a horizontally long rectangle. The far infrared heater 66 warms the space between the pair of left and right skirt guards 44, 44.

  The speaker 54 is provided on the skirt guard 44 located on the step side 30 with respect to the water discharge portion 64.

  Similarly to the upper floor side, the skirt guard 44 on the left side of the lower floor side has an operation panel 56 having a temperature sensor 74, an infrared sensor 60, a water discharge section 64 having a nozzle 62, a far infrared heater 66, and a speaker 58. Is provided.

(3) Electrical configuration of escalator 10 Next, the electrical configuration of the escalator 10 will be described with reference to FIG.

  The control device 50 in the machine room 14 includes an inverter device 21 for driving the motor 20, a safety device 23 for stopping the escalator 10 in an emergency, an operation key 68 provided on each of the operation panels 52 and 56, and a stop. A key 70, an illumination key 72, a temperature sensor 74, and speakers 54 and 58 are connected. Further, a pump 63 for blowing water from the nozzle 62, a far infrared heater 66, an infrared sensor 60, a lighting device 73 provided in the balustrade 36, and the like are connected.

  When water is blown from the nozzle 62, the control device 50 takes water from tap water or a pump 63 connected to a tank, and blows water from the nozzle 62 using the pump 63.

  As the safety device 23, a skirt guard pinched measuring device provided in the skirt guard 44, an inlet pinched measuring device provided in the inlet portions 46, 48, a step lift measuring device provided in the boarding plates 32, 34, an emergency For example, a stop button.

(4) Snow Removal Control Method A snow removal control method in the case where the escalator 10 is installed in the cold area where snow falls and outdoors is described based on the flowchart of FIG.

  In step S1, before starting the operation of the escalator 10, the control device 50 uses the temperature sensor 74 to measure the outside air temperature near the entrance and exit on the upper floor side and the lower floor side, and the outside air temperature is set to a set temperature (for example, 2 If the temperature is equal to or lower than (° C.), the process proceeds to step S2. If the temperature is higher than the set temperature, the process proceeds to step S8.

  In step S <b> 2, the control device 50 uses the infrared sensor 60 to detect whether there is snow in the vicinity of the entrance and exit on the upper floor side and the lower floor side, and if there is snow, measures the amount of snow accumulation. If there is snow, the process proceeds to step S3 (in the case of Y), and if there is no snow, the process proceeds to step S8 (in the case of N).

   In step S <b> 3, the control device 50 sets an operation time for blowing water from the nozzle 62 and an operation time for drying with the far-infrared heater 66 in accordance with the amount of snow. For example, the control device 50 increases the operation time as the amount of snow is larger. When the amount of snow is 3 cm or less, the operation time for blowing water from the nozzle 62 is 1 minute, and the far infrared heater 66 dries. The operation time is set to 5 minutes, and when the amount of snow is 10 cm, the time for blowing water from the nozzle 62 is set to 3 minutes, and the time for drying with the far infrared heater 66 is set to 15 minutes. Then, the process proceeds to step S4.

  In step S4, the control device 50 discharges water from the nozzle 62 and proceeds to step S5. By blowing out water from the nozzle 62, it is possible to melt the snow accumulated on the boarding / alighting plate 32, the comb 33, and the step 30 between the pair of left and right skirt guards 44, 44.

  In step S5, the control device 50 discharges water for the operating time set in step S3, stops thereafter, and proceeds to step S6.

  In step S6, the control device 50 starts heat radiation from the far-infrared heater 66, and dries the remaining snow and snowmelt water. Then, the process proceeds to step S7.

  In step S7, the control device 50 radiates heat from the far-infrared heater 66 for a preset operation time, stops thereafter, and proceeds to step S8. In this state, there is no snow in the vicinity of the entrance / exit, and the snowmelt water is dried and passengers do not slip.

  In step S8, the control device 50 starts normal operation of the escalator. Then, the process proceeds to step S9.

  In step S9, the control device 50 always measures the outside air temperature near the entrance / exit using the temperature sensor 74 during normal operation of the escalator. If the outside air temperature is below freezing point, the control device 50 proceeds to step S10 (Y ), Otherwise return to step S8 and continue normal operation (in the case of N).

  In step S10, since the outside air temperature is below freezing point, the control device 50 dissipates heat from the far infrared heater 66, prevents the comb 33 of the boarding board 32 and the comb 35 of the boarding board 34 from freezing, and returns to step S6.

(5) Effect According to the present embodiment, since the snow near the entrance / exit can be removed before the start of driving, it is possible to prevent the danger that the passenger slips and falls when getting on and off. In particular, the far-infrared heater 66 allows the boarding boards 32 and 34, the combs 33 and 35, and the step 30 near the boarding / exiting door to be in a dry state, thereby preventing foot slipping.

  In addition, the amount of snow accumulation is measured by the infrared sensor 60, and the operation time for blowing water and the operation time of the far-infrared heater 66 are increased as the snow accumulation amount increases. Snow can be removed and energy saving effect can be obtained.

  Further, even during normal operation of the escalator 10, the outside temperature is measured by the temperature sensor 74 and the far infrared heater 66 is operated when the temperature is below freezing. Therefore, it is possible to prevent freezing of the combs 33 and 35 that are most likely to slip and fall.

(6) Modified Example In the above embodiment, tap water is used as it is from the nozzle 62. However, instead of this, tap water may be warmed to 30 ° C. or more and blown out with warm water. Blowing warm water makes it easier to melt snow.

  In the above embodiment, the far-infrared heater 66 is provided on the skirt guard 44 and the vicinity of the entrance / exit is dried, but instead, a heater may be provided on the entrance / exit plates 32 and 34 and heated and dried. Further, in order to dry more efficiently, water may be blown by a blower to a position where a heater is provided, and drying may be performed more reliably.

  In the above embodiment, the water discharge part 64 and the far infrared heater 66 are provided only on one of the pair of left and right skirt guards 44, 44, but the water discharge part 64 and the far infrared heater 66 are provided on both the pair of left and right skirt guards 44, 44. It may be provided.

  Although the escalator 10 has been described in the above embodiment, a moving sidewalk may be used 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 10 ... Escalator, 32 ... Boarding board, 33 ... Com, 34 ... Boarding board, 35 ... Com, 44 ... Skirt guard, 60 ... Infrared sensor, 62 ... Nozzle, 66 ... far infrared heater, 74 ... temperature sensor

Claims (9)

A pair of left and right balustrades provided on both sides of the step;
Skirt guards provided at the bottom of the pair of left and right parapets,
A nozzle provided at the entrance of the skirt guard, and a nozzle for blowing water toward the boarding board, the comb, or the step;
A snow cover sensor for measuring the presence or absence of snow at the doorway;
A control unit that blows out the water from the nozzle when the snow sensor measures snow before the operation of the step is started;
A heater provided on the skirt guard at the entrance and exit for drying the water blown from the nozzle;
With passenger conveyor. Providing the nozzle and the heater on the skirt guard in the vicinity of the comb;
The passenger conveyor according to claim 1 . The controller increases the operation time of blowing water from the nozzle as the amount of snow measured by the snow sensor increases.
The passenger conveyor according to claim 1. A temperature sensor for measuring the outside air temperature at the entrance / exit,
The control unit blows out the water from the nozzle when the outside air temperature measured by the temperature sensor is equal to or lower than a set temperature and the snow cover sensor measures snow cover.
The passenger conveyor according to claim 1. A temperature sensor for measuring outside air temperature at the entrance and exit,
The control unit operates the heater when the outside air temperature measured by the temperature sensor is below freezing point,
The passenger conveyor according to claim 1 . The water is warm water;
The passenger conveyor according to claim 1. The snow cover sensor is an infrared sensor;
The passenger conveyor according to claim 1. The heater is a far infrared heater,
The passenger conveyor according to claim 1 . A heater for drying the water blown from the nozzle is provided on the boarding board.
The passenger conveyor according to claim 1.

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