JP6262316B1 - Passenger conveyor - Google Patents

Abstract

Provided is a passenger conveyor that allows passengers to easily come out from a gap even when a passenger is caught in a gap between a step and a skirt guard and a skirt guard is caught. A pinching detection device includes a sphere, a holding portion that rotatably holds the sphere, a switch body that is fixed to the truss, and a switch operating portion that is operated by the holding portion. And a spring 84 that presses the sphere 72 against the side surface of the step 30. [Selection] Figure 3

Description

  Embodiments of the present invention relate to passenger conveyors.

  On passenger conveyors such as escalators and moving walkways, steps run between a pair of left and right skirt guards. Therefore, when a passenger's feet, clothes, luggage, etc. are caught in the gap between the step and the skirt guard, a skirt guard pinched detection device is provided to ensure the safety of the passenger. Emergency stop.

JP 2008-265891 A

  However, when the conventional detection device sandwiched between skirt guards is activated, the passenger cannot escape from the state of being sandwiched between the step and the skirt guard, and has to wait for the staff and maintenance personnel to remove them. There was a problem.

  Therefore, in the embodiment of the present invention, in view of the above problems, even if the passenger is caught in the gap between the step and the skirt guard and the skirt guard is caught and the detection device operates, the passenger can easily come out from this gap. The object is to provide a passenger conveyor.

Embodiments of the present invention include a truss arranged in the front-rear direction, a pair of left and right skirt guards provided on the top of the truss, a balustrade erected from the pair of left and right skirt guards, and the pair of left and right skirt guards A step that travels along the front-rear direction, a pair of left and right entrances of the railing, a boarding / exiting plate into which the step advances or enters, a driving device that drives the step, and the driving device And a skirt guard pinched detection device provided on the skirt guard corresponding to the upper end of the side surface of the step, and the control unit operates the skirt guard pinched detection device. The step is stopped when the skirt guard is sandwiched, and the detection device includes a sphere, a holding portion for holding the sphere, a switch body fixed to the truss, A limit switch and a switch operating portion operated by the lifting unit, the spheres have a, a pressing means for pressing the side surface of the footstep, sandwiched the skirt guard detector from close positions the elevating plate A plurality of predetermined intervals are provided toward a distant position, and when the step is urgently stopped, the control unit is operated when the detection device is sandwiched between the skirt guards at a position closest to the boarding / exiting plate. It is a passenger conveyor which makes the stop speed which stops a step faster than the said stop speed when the said skirt guard in the furthest position is pinched | interposed and the detection apparatus act | operated .

Side surface explanatory drawing of the escalator which shows one Embodiment of this invention. Side view of steps and skirt guards near the entrance / exit. The longitudinal cross-sectional view between a step and a skirt guard. The front view of a detection device between skirt guards. The top view of a detection apparatus between skirt guards.

  Hereinafter, an escalator 10 according to an embodiment of the present invention will be described with reference to the drawings.

Embodiment 1

  The escalator 10 of Embodiment 1 is demonstrated 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 that is a framework of the escalator 10 is supported using support angles 2 and 3 across the upper and lower floors of the building 1.

  Inside the upper floor machine room 14 at the upper end of the truss 12, a drive unit 18 for running the step 30, a pair of left and right drive sprockets 24, 24, and a pair of left and right handrail belt sprockets 27, 27 are provided. Yes. The drive device 18 includes a motor 20 formed of an induction motor (induction motor), a reduction gear, an output sprocket attached to the output shaft of the reduction gear, a drive chain 22 driven by the output sprocket, and rotation of the motor 20. And a disc brake that holds the stopped state. The drive sprocket 24 is rotated by the drive chain 22. The pair of left and right drive sprockets 24, 24 and the pair of left and right handrail belt sprockets 27, 27 are connected by a connecting belt (not shown) and rotate synchronously. A control unit 50 for controlling the motor 20, the disc brake, and the like is provided in the machine room 14 on the upper floor side.

  A driven sprocket 26 is provided inside the lower floor machine room 16 at the lower end of the truss 12. Between the driving sprocket 24 on the upper floor side and the driven sprocket 26 on the lower floor side, a pair of left and right endless step chains 28 and 28 are suspended. That is, the front wheels 301 of the plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals. The front wheel 301 of the step 30 travels along a front guide rail (not shown) fixed to the truss 12, and engages with a recess in the outer periphery of the drive sprocket 24 and a recess in the outer periphery of the driven sprocket 26, The step 30 is inverted up and down. Further, the rear wheel 302 travels on the rear guide rail 25 fixed to the truss 12.

  On the left and right sides of the truss 12, a pair of left and right skirt guards 44, 44 and a pair of left and right balustrades 36, 36 are erected. A handrail rail 39 is provided on the upper part of the balustrade 36, and the handrail belt 38 moves along the handrail rail 39. A front skirt guard 40 on the upper floor side is provided in the lower front part on the upper floor side of the balustrade 36, and a front skirt guard 42 on the lower floor side is provided in the lower front part on the lower floor side. Inlet portions 46 and 48, which are entrances and exits of the handrail belt 38, protrude from each other. The skirt guard 44 is provided at the lower side of the balustrade 36, and the step 30 runs between the pair of left and right skirt guards 44, 44. Operation panels 52 and 56 and speakers 54 and 58 are provided on the inner side surfaces of the skirt guards 44 on the upper and lower floors, respectively.

  The handrail belt 38 enters the front skirt guard 40 from the inlet 46 on the upper floor side, and is passed over the handrail drive sprocket 27 through the guide roller group 64, and then the skirt through the guide roller group 66. It moves in the guard 44 and appears outside the front skirt guard 42 from the inlet 48 on the lower floor side. The handrail belt 38 moves in synchronization with the step 30 as the handrail drive sprocket 27 rotates together with the main drive sprocket 24. The rotating handrail driving sprocket 27 has a pressing member 68 for pressing the traveling handrail belt 38.

  The upper floor side entrance / exit board 32 is provided horizontally at the entrance / exit on the ceiling surface of the machine room 14 on the upper floor side, and the lower floor side is provided at the entrance / exit on the ceiling surface of the machine room 16 on the lower floor side. The boarding / exiting plate 34 is provided horizontally. A comb-like comb 60 in which a plurality of comb teeth 61 protrudes at equal intervals is provided at the front end of the boarding / alighting plate 32, and the step 30 advances or enters from the comb 60. Further, a comb-like comb 62 in which a plurality of comb teeth 61 protrude at equal intervals is also provided on the boarding / exiting plate 34 (see FIG. 2 for the comb teeth 61).

(2) Safety device The escalator 10 is provided with a safety device to ensure the safety of passengers.

  As shown in FIGS. 1 and 2, the safety device includes a skirt guard pinched detection device (hereinafter, referred to as “pinch detection device”) 70 provided in the skirt guard 44, and inlet portions 46 and 48. An unillustrated inlet pinching detection device, a step lift detection device (not shown) provided on the guide rail 25, a step chain break detection device, an emergency stop button (not shown) provided on the operation panels 52 and 56, and the like.

  The pinch detection device 70 is a device that detects that a foreign object (for example, a passenger's foot, clothes, luggage, etc.) is pinched between the skirt guard 44 and the step 30, and will be described in detail later.

  The inlet pinching detection device is a device that detects when a foreign object (for example, a passenger's hand or baggage) is simultaneously drawn into the inlet portion 46 or the inlet portion 48 where the handrail belt 38 is drawn together with the handrail belt 38. .

(3) Step 30
Next, the step 30 will be described with reference to FIGS.

  As shown in FIG. 2, the step 30 includes a pair of left and right step frames 303, 303, a cleat surface 304 formed on the upper surface of the step frame 303, and a riser surface formed on the rear surface of the step frame 303. The step frame 303, the cleat surface 304, and the riser surface 305 are integrally formed by aluminum die casting.

  As shown in FIG. 3, the cleat surface 304 is provided with crests 306 and troughs 307 extending in the front-rear direction, and when the step 30 enters the boarding board 32 or boarding board 34 as shown in FIG. In addition, the comb-like comb 60 or the comb tooth 61 of the comb 62 enters the valley 307 and discharges the foreign matter riding on the cleat surface 304.

(4) Pinch detection device 70
Next, the pinch detection device 70 will be described with reference to FIGS.

  The pinched detection device 70 includes a sphere 72, a holding portion 74, a holding connecting portion 76, a limit switch 78, a switch operating portion 80, a shaft 82, and a spring 84.

  As shown in FIG. 3, the holding portion 74 has a columnar shape, holds the sphere 72 at its tip so that it can rotate freely and does not come out, and the sphere 72 projects into a hemispherical shape from the tip. Yes. This protruding dimension is substantially equal to the gap 86 between the step 30 and the skirt guard 44.

  As shown in FIGS. 4 and 5, the holding connecting part 76 connects a plurality of (for example, four) spherical bodies 72 and holding parts 74 and fixes them in a row.

  The limit switch 78 includes a switch main body 79 fixed to the truss 12 and a switch operating unit 80 provided on the switch main body 79. The limit switch 78 changes from an off state to an on state when the switch operating unit 80 is pressed, and outputs a detection signal to the control device 50.

  As shown in FIGS. 3 and 5, the switch operating unit 80 has a rectangular plate shape. A plurality of (for example, two) shafts 82 are provided between the holding connecting portion 76 and the switch operating portion 80. The shaft 82 is formed by overlapping a thick shaft and a thin shaft in the axial direction, and its length expands and contracts in the axial direction. One end of the shaft 82 is fixed to the holding connecting portion 76, and the other end is fixed to the switch operating portion 80. A coiled spring 84 is between the holding connecting portion 76 and the switch operating portion 80, and the shaft 82 is inserted into the coiled spring 84. The spring 84 is always biased in a direction in which the holding connecting portion 76 is separated from the switch operating portion 80.

  A plurality of the pinching detection devices 70 are provided on the skirt guards 44 and 44 on both sides of the step 30, respectively. As shown in FIGS. 1 and 2, the attachment position of the pinched detection device 70 is only near the upper floor board 32 where the step 30 moves in the horizontal direction and near the lower floor board 34. Is provided.

  Further, as shown in FIG. 4, the detection devices 70 are attached to the skirt guard 44 so that the spheres 72 arranged in a line are horizontal as shown in FIG. 4.

  Further, as shown in FIGS. 3 and 5, the sphere 72 that protrudes in a hemispherical shape protrudes from the skirt guard 44 and is biased by a spring 84 so as to abut on the side of the cleat surface of the step 30.

(5) Operation state of the pinching detection device 70 Next, the operation state of the pinching detection device 70 will be described.

  When the passenger rides on the step 30 and the passenger's feet, clothes, luggage, etc. are not sandwiched between the gaps 86 between the step 30 and the skirt guard 44, as shown in FIGS. The spherical body 72 always presses one side of the cleat surface of the step 30 by the spring 84. At this time, the portion of the step 30 that contacts one side portion of the cleat surface is in point contact with the sphere 72, and the sphere 72 rotates with respect to the holding portion 74.

  When a passenger's clothes or the like are caught in the gap 86 between the step 30 and the skirt guard 44 and the sphere 72 of the detection device 70 is pressed against the urging force of the spring 84, the holding connecting portion 76 is switched to the switch operating portion 80. , The switch actuating part 80 is actuated and the limit switch 78 is switched from the off state to the on state. Then, the limit switch 78 outputs a stop signal to the control device 50, and the control unit 50 causes the motor 20 to stop urgently. Thereby, the passenger can ensure the safety.

(6) Effect According to the present embodiment, when a passenger's clothes are sandwiched between the step and the skirt guard gap 86, the sphere 72 is pressed against the biasing force of the spring 84, and the limit switch 78 outputs a stop signal. However, the control device 50 makes an emergency stop of the step 30 at the same speed regardless of which pinch detection device 70 is activated, so that passenger safety can be achieved.

  Further, with respect to foreign matters such as clothes sandwiched between the gaps 86 between the step 30 and the skirt guard 44, the spherical body 72 is rotatably arranged with respect to the holding portion 74, and the protruding portion is hemispherical. Easy to remove. Therefore, the state where it was pinched until an attendant or a maintenance person comes like before does not continue, and a passenger's safety can be secured more.

  In addition, since the portions exposed from the skirt guard 44 are the front surface of the holding connection portion 76, the front surface of the holding portion 74, and the sphere 72 protruding in a hemispherical shape, foreign matter does not enter the skirt guard 44.

  Further, since the sphere 72 always protrudes from the side surface of the step 30 by the spring 84, the gap 86 between the step 30 and the skirt guard 44 can be reduced by that amount, and the occurrence of an accident can be prevented in advance.

Embodiment 2

  The escalator 10 of Embodiment 2 is demonstrated.

  In the first embodiment, regarding the plurality of sandwiching detection devices 70 arranged in the horizontal direction, the stopping speed for stopping the step 30 is the same regardless of which sandwiching detection device 70 is activated.

  In the present embodiment, instead of this, regarding the pinched detection devices 70 arranged side by side in the horizontal direction, the farthest stop speed V when the pinched detection device 70 arranged close to the boarding / alighting plate 32 is operated is the farthest. The stopping speed V ′ when the pinching detection device 70 disposed in the position is activated is set to a different speed.

  Specifically, the stop speed V when the pinched detection device at the position closest to the boarding / alighting plate 32 is operated is made faster than the stop speed V 'when the pinch detection device at the farthest position is operated. As a result, when a foreign object is detected by the pinched detection device 70 located at the nearest position, the step 30 stops more quickly, and secondary damage such as a passenger being caught by the comb 60 and falling over can be prevented.

Embodiment 3

  The escalator 10 of Embodiment 3 is demonstrated.

  When there are n sandwiched detection devices 70, the stop speed corresponding to the sandwiched detection device 70 located closest to the boarding / alighting plate 32 is V1, and the stop corresponding to the sandwiched detection device 70 located next to the sandwiched detection device 70 is performed. When the speed is V2, the stop speed Vk corresponding to the pinched detection device 70 located at the k-th closest position, and the stop speed Vn corresponding to the pinched detection device 70 located at the farthest position is Vn> V2>. ..> Vk>...> Vn. However, 1 <k <n.

  Even in the present embodiment, the step 30 is stopped more rapidly as the pinched detection device 70 located near the comb 60 can prevent secondary damage such that the passenger is caught by the comb 60 and falls.

Example of change

  Further, the detection device 70 of the above-described embodiment may be applied to a moving sidewalk where the step 30 always moves in the horizontal direction. In this case, unlike the escalator 10, the sandwiched detection device 70 of the above-described embodiment can be installed at equal intervals from one boarding gate to the other boarding gate, and passenger safety can be further ensured.

  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, 12 ... Truss, 30 ... Step, 70 ... Pinch detection device, 72 ... Sphere, 74 ... Holding part, 76 ... Holding connection part, 78 ..Limit switch, 80 ... Switch operating part, 82 ... Shaft, 84 ... Spring

Claims (8)

A truss arranged in the front-rear direction,
A pair of left and right skirt guards provided at the top of the truss;
A balustrade erected from a pair of left and right skirt guards,
A step that runs along the front-rear direction between the pair of left and right skirt guards;
Provided at the entrance of the pair of left and right balustrades, the boarding board where the step advances or enters,
A driving device for running the steps;
A control unit for controlling the driving device;
A skirt guard pinched detection device provided in the skirt guard corresponding to the upper end of the side surface of the step;
Have
The control unit stops the step when the detection device is sandwiched between the skirt guards,
The detection device sandwiched between the skirt guards is:
A sphere,
A holding part for holding the sphere;
A limit switch having a switch body fixed to the truss and a switch operating part that is operated by the holding part;
Pressing means for pressing the sphere against the side surface of the step;
I have a,
A plurality of detection devices sandwiched between the skirt guards are provided at predetermined intervals toward a position far from a position near the boarding / exiting plate,
When the emergency stop of the step, the control unit has a stop speed at which the step is stopped at the farthest position when the skirt guard is positioned between the boarding board and the skirt guard and the detection device is activated. The skirt guard is sandwiched between the stop speed when the detection device is activated,
Passenger conveyor. The pressing means is
A shaft connected to be stretchable between the holding portion and the switch operating portion;
A coiled spring provided between the holding portion and the switch operating portion with the shaft inserted;
The passenger conveyor according to claim 1. The holding portions holding a plurality of the spheres are provided in the holding connection portion in a state of being aligned in a row.
The passenger conveyor according to claim 2. A plurality of the shafts and the springs are provided between the holding connecting portion and the switch operating portion.
The passenger conveyor according to claim 3. The skirt guard is sandwiched and the skirt guard is provided with the detection device so that the plurality of spheres arranged in a row are horizontal.
The passenger conveyor according to claim 4. The detection device sandwiched between the skirt guards is provided at a position where the steps travel horizontally.
The passenger conveyor according to claim 5. The control unit increases the stop speed as the detection device is sandwiched between the skirt guards close to the boarding / exiting plate,
The passenger conveyor according to claim 1 . The passenger conveyor is an escalator or a moving walkway.
The passenger conveyor according to claim 1.

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