JP2010149957A - Footstep displacement detection device for escalator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a detection of footstep displacement in an escalator early and reliably with a simple configuration. <P>SOLUTION: The footstep displacement detection device 60 includes a conductive wire 62 provided on comb-like plates 50 so as not to be in contact with cleats 34 and a wire-breaking detection section 66 for detection breaking of the conductive wire 62. With this configuration, when the footstep 14 is displaced, the conductive wire 62 provided on the comb-like plates 50 comes into contact with the cleats 34, whereby the conductive wire 62 is damaged, or broken; thus, displacement of the footstep 14 can be detected early and reliably with a simple configuration. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a device that detects that the position of an escalator step has shifted.

  A configuration of a conventional escalator will be described with reference to FIGS. FIG. 1 is a perspective view of an entire conventional escalator. FIG. 2 is a side sectional view of a conventional escalator. FIG. 3 is a perspective view of a conventional step. FIG. 4 is a cross-sectional view of a conventional entrance / exit.

  As shown in FIG. 1, the escalator 110 circulates along a guide rail (not shown) or the like between a pair of entrances / exit 112 including a entrance 112 a and an exit (not shown). A step 114 and a moving handrail 118 that slides along the outer periphery of the balustrade 116 in synchronization with a plurality of steps 114 that circulate are provided.

  Further, as shown in FIG. 2, the escalator 110 includes an endlessly extending step chain 120 to which a plurality of steps 114 are connected, a sprocket 122 around which the step chain 120 is wound, a sprocket 122 and a drive chain 124. And a driving device 126 that is rotationally driven via the.

  As shown in FIG. 3, the step 114 includes a step body 128, a step plate 130 attached so as to cover the upper surface of the step body 128, and a riser 132 attached so as to cover one side surface of the step body 128. And have. An uneven cleat 134 is formed on the tread board 130 and the riser 132. A roller 136 guided along the guide rail is attached to the lower part of the step body 128, and the step 114 can be smoothly circulated by the roller 136.

  Returning to FIGS. 1 and 2, a boarding / alighting plate 138 is installed at the entrance / exit 112 of the escalator 110, and the boarding / alighting plate 138 is provided so as to be flush with the floor surface 140 of the building where the escalator 110 is installed. . Between the boarding board 138 and the step 114, the comb plate 142 which prevents that a passenger's step is caught in the step 114 is provided. The comb plate 142 is supported by the truss 144. A comb 146 is attached to the tip of the comb plate 142.

  As shown in FIG. 4, the comb 146 is fixed to the comb plate 142 by a countersunk screw 148. The comb 146 is provided with comb teeth 150 that mesh with the cleats 134 formed on the tread plate 130 of the step 114 in a non-contact state. The comb teeth 150 prevent foreign matter and dust from entering the escalator 110.

  As shown in FIGS. 1 and 2, the plurality of steps 114 attached to the step chain 120 travels in a circulating manner by the driving device 126 sending the step chain 120 via the sprocket 122. The step 114 that circulates travels under the boarding board 128 on the entrance side, and puts the passenger at the entrance 112a, and then lowers the passenger at the exit. Then, the step 114 moves from the exit to the exit side reversing portion (not shown) through the lower side of the exit board (not shown) on the exit side, and is reversed at the exit side reversing portion. Move to the side inversion unit 152. Then, the step 114 is reversed again by the entrance-side reversing unit 152, and then moves to the entrance 112a through the lower side of the entrance / exit plate 138 to the entrance. In this way, the plurality of steps 114 attached to the step chain 120 circulates.

  Therefore, the user of the escalator 110 needs to get on the moving handrail 118 that slides in synchronization with the step 114 and gets on the step 114 that has moved to the entrance 112a from below the entrance board 138 on the entrance side with good timing. There is.

  The following Patent Document 1 describes a device for detecting that a comb tooth is damaged by embedding a conductive wire inside a comb tooth disposed at an entrance / exit of an escalator and detecting disconnection of the conductive wire. Has been. According to this apparatus, it is possible to reliably detect the breakage of comb teeth without resorting to patrol or visual inspection.

JP 7-25575 A

  In the elevator 110 as described above, the step 114 can smoothly circulate while the roller 136 is guided by the guide rail. At this time, in order to prevent the step 114 from moving in the width direction, the roller 136 is regulated in the width direction by the guide rail. However, while the step 114 circulates, the roller 136 may be worn due to contact between the side surface of the roller 136 and the guide rail, and the position of the step 114 may be displaced. If a shift occurs in the position of the step 114, problems such as generation of abnormal noise and increase in load are caused. On the other hand, there is a problem that it is very difficult to discover that the position of the step 114 is shifted by patrol or visual observation.

  An object of the present invention is to provide an escalator step position detecting device for an escalator with a simple structure and capable of reliably and early detecting that the position of a step is shifted.

  The present invention relates to a step position of an escalator comprising: a comb plate installed on a boarding board; and a comb attached to a cleat attached to a tip of the comb plate and engaged with a cleat formed on a step board of the step at an interval. The deviation detecting device includes a conductive wire provided on the comb tooth so as not to come into contact with the cleat and a disconnection detecting unit for detecting disconnection of the conductive wire.

  In addition, the disconnection detection unit includes a power supply unit that supplies current to the conductive line, and the disconnection detection unit can detect disconnection of the conductive line by detecting a disconnection state of the current supplied from the power supply unit. it can.

  In addition, the cleat has a demarcation line made of a non-conductive material, the disconnection detection unit has a switch unit for turning on and off the power supply unit, and only while the demarcation line passes through the comb teeth. The switch unit can turn on the power supply unit.

  Further, the comb plate has a plurality of combs arranged in the width direction, each comb is provided with a plurality of comb teeth at predetermined intervals in the width direction, and the conductive wire has an outer periphery of each comb tooth. It is preferable that the conductive wires provided on adjacent comb teeth are connected to each other at the base ends of the comb teeth.

  Furthermore, the ends of the comb-shaped conductive wires provided at both ends of each comb can be electrically connected to the disconnection detecting unit.

  In addition, adjacent combs are arranged so that the conductive wires provided in each are electrically connected, and the ends of the conductive wires provided in the combs arranged at both ends of the comb plate and the disconnection detecting unit are electrically connected. Can be connected to.

  According to the escalator step position deviation detecting device of the present invention, it is possible to reliably and quickly detect that the step position is deviated with a simple structure.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an escalator step displacement detecting device according to the present invention will be described with reference to the drawings.

  First, the configuration of the escalator 10 will be described with reference to FIG. The escalator 10 includes a plurality of steps 14 that circulate along a guide rail (not shown) or the like between a pair of entrances / exits 12 including a entrance 12a and an exit (not shown), and a plurality of circulators that circulate. And a balustrade 16 erected on both sides of the step 14 in the width direction. On the outer periphery of the balustrade 16, a moving handrail 18 that slides in synchronism with the circulating travel of the step 14 is suspended.

  Further, the escalator 10 includes an endlessly extending step chain 20 having a plurality of steps 14 connected thereto, a sprocket 22 around which the step chain 20 is wound, and a drive device that rotationally drives the sprocket 22 via a drive chain 24. 26.

  A specific configuration of the step 14 will be described with reference to FIG. The step 14 includes a step body 28, a step board 30 attached so as to cover the upper surface of the step body 28, and a riser 32 attached so as to cover one side surface of the step body 28. The step body 28 is connected to the step chain 20.

  The tread plate 30 and the riser 32 have an uneven cleat 34 formed along the direction of travel of the step 14. A demarcation line 35 is formed at the end of the cleat 34 and in contact with the riser 32 of the adjacent step 14 so as to call attention with yellow color. The demarcation line 35 urges attention so that shoes or the like are not sandwiched between the adjacent steps 14. The demarcation line 35 is made of a non-conductive material, for example, plastic. The cleats 34 other than the demarcation line 35 are made of a conductive material, for example, metal.

  A roller 36 guided along the guide rail is attached to the lower part of the step body 28, and the step 14 can smoothly circulate by the roller 36.

  Returning to FIG. 5, a boarding board 38 is installed at the entrance 12 of the escalator 10, and this boarding board 38 is provided so as to be flush with the floor surface 40 of the building where the escalator 10 is installed. Further, in the vicinity of the entrance 12, a comb plate 42 is provided between the boarding plate 38 and the step 14 that circulates to prevent passengers' feet from being caught in the step 14. The comb plate 42 is supported by the truss 44. A plurality of combs 46 are attached to the tip of the comb plate 42 so as to correspond to the width of the step.

  The structure around the entrance 12 will be described with reference to FIG. The comb 46 is made of plastic and is fixed to the comb plate 42 by a countersunk screw 48. The comb 46 is provided with a plurality of comb teeth 50 with a predetermined spacing in the width direction of the comb 46 that mesh with the cleats 34 formed on the tread 30 of the step 14 with a gap. The comb teeth 50 are engaged with the cleat 34 to prevent foreign matter, dust, and the like from entering the escalator 10.

  As described in the prior art, in a general escalator, in order to prevent movement of the step in the width direction, the roller provided in the step is regulated in the width direction by the guide rail. However, while the steps are circulating, the rollers are worn due to contact between the side surfaces of the rollers and the guide rails, and the steps are displaced. There is a problem in that it is very difficult to find the position deviation of the step by patrol and visual observation.

  In order to solve such a problem, in the present embodiment, a step position having a conductive wire provided on the comb tooth 50 so as not to contact the cleat 34 and a disconnection detecting unit for detecting disconnection of the conductive wire. A deviation detecting device 60 is provided in the escalator 10.

  Hereinafter, the configuration of the step position deviation detection device 60 will be described with reference to FIGS. FIG. 8 is a diagram showing the configuration of the comb 46. FIG. 9 is a circuit diagram illustrating a connection state of the step position deviation detection device 60.

  In FIG. 8, one comb 46 is shown. The comb 46 is formed with a hole 46 a through which the countersunk screw 48 passes in order to fix the comb 46 to the comb plate 42. Conductive wires 62 are attached to the comb teeth 50 provided on the comb 46 so as not to contact the cleat 34. The conductive wire 62 is made of a material having good conductivity, and is, for example, copper. FIG. 7 shows that the conductive wire 62 is attached to the side surface of the comb tooth 50 that faces the cleat 34. Returning to FIG. 8, the conductive wire 62 is configured to travel along the outer periphery of each comb tooth 50, and the conductive wires 62 provided on the adjacent comb teeth 50 are connected to each other at the base end of the comb tooth 50.

  A plurality of combs 46 configured as described above are fixed to the comb plate 42 side by side in the width direction. As shown in FIG. 9, the adjacent combs 46 are arranged so that the conductive wires 62 provided in each of them are electrically connected. Then, the conductive wire ends 64 of the comb teeth 50 provided at both ends of the combs 46 disposed at both ends of the comb plate 42 are electrically connected to the disconnection detection unit 66. That is, the conductive wires 62 provided in each comb 46 are connected in series, and this series circuit is electrically connected to the disconnection detector 66.

  The disconnection detection unit 66 includes a power supply unit 68 that supplies current to the conductive line 62, a switch unit 70 that turns the power supply unit 68 on and off, and an alarm unit 72 that outputs an alarm to the outside when the conductive line 62 is disconnected. .

  Next, the operation of the step position deviation detection device 60 will be described. First, when the escalator 10 is operating, the switch unit 70 of the disconnection detection unit 66 is turned on to turn on the power supply unit 68. Then, a current is supplied from the power supply unit 68 to the conducting wire unit 62. Then, it is assumed that the position of the step 14 has shifted for some reason. Due to the displacement of the step 14, the position of the cleat 34 is also displaced. Although the cleat 34 and the comb teeth 50 are engaged with each other with a slight gap, they are brought into contact with each other due to the positional deviation of the cleat 34. The contact between the cleat 34 and the comb teeth 50 means that the conductive wire 62 provided on the comb teeth 50 also contacts the cleat 34. If it does so, the conductive wire 62 will be damaged, ie, it will break, and the series circuit which consists of the power supply part 68 and the conductive wire 62 will be interrupted | blocked. When the disconnection detecting unit 66 detects the non-conduction state of the series circuit, the step position deviation detection device 60 can detect the position deviation of the step 14. And the warning part 72 in the disconnection detection part 66 can alert | report the position shift of the step 14 with respect to a user or an administrator. The disconnection detection unit 66 can detect the non-conduction state of the circuit based on, for example, the detection result of the ammeter.

  According to the step position deviation detection device 60 of the present embodiment, as described above, since the conductive wire 62 provided on the comb teeth 50 is disconnected when the step 14 is displaced, the position of the step 14 can be simplified with a simple structure. The deviation can be detected reliably and early. In addition, according to the step position deviation detection device 60, by detecting the disconnection of the conductive wire 62, a foreign object is caught between the cleat 34 and the comb tooth 50 for some reason, and when the foreign object hits the comb tooth 50, the comb tooth 50. It is possible to reliably and early detect that the product is damaged or may be damaged.

  In the present embodiment, the case has been described in which the switch unit 70 of the disconnection detection unit 66 is turned on and the power supply unit 68 is turned on when the escalator 10 is operating, but the present invention is not limited to this configuration. Only while the demarcation line 35 passes the comb teeth 50, the switch unit 70 may be turned on and the power supply unit 68 may be turned on. The demarcation line 35 is made of a non-conductive material, and the other cleat 34 is made of a conductive material. Even when the conductive wire 62 is disconnected, if the cleat 34 made of a conductive material is in contact with the disconnected portion, the circuit is in a conductive state, and the disconnection detection unit 66 indicates that the circuit is in a non-conductive state. It cannot be detected. Therefore, only when the demarcation line 35 passes through the comb teeth 50, control is performed so that the switch unit 70 is turned on and the power supply unit 68 is turned on. By this control, when the conductive wire 62 is disconnected, the cleat 34 made of a non-conductive material, that is, the demarcation line 35 is in contact with the disconnected portion, so that the circuit is brought into a conductive state via the demarcation line 35. The disconnection detector 66 can reliably detect the non-conduction state of the circuit.

  In the present embodiment, the demarcation line 35 is formed at the end of the cleat 34 that is in contact with the riser 32 of the adjacent step 14 in order to call attention so that shoes or the like are not sandwiched between the adjacent steps 14. However, the present invention is not limited to this configuration. It may be formed at both ends of the cleat 34 in the traveling direction of the step 14. Furthermore, in order to call attention so that shoes etc. are not pinched between the skirt guard (not shown) which is in the lower part of the balustrade 16 and is opposed to the step 14 with a slight gap, The cleat 34 may be formed at both ends of the step 14 in the width direction.

  In this embodiment, although the case where the conductive wire 62 provided in the some comb 46 was connected in series and comprised the circuit was demonstrated, it is not limited to this structure. In FIG. 10, the circuit of the connection state of the step position deviation detection apparatus 60 of another aspect is shown. As shown in this figure, the ends 64 of the conductive wires 62 of the comb teeth 50 provided at both ends of each comb 46 are electrically connected to the disconnection detector 66. That is, the conductive wires 62 provided in the combs 46 are connected in parallel with each other in the disconnection detection unit 66. With this configuration, since the disconnection detecting unit 66 is provided corresponding to each comb 46, the conductive wire 62 of the comb 46 is disconnected, in other words, the comb tooth 50 of the comb 46 is damaged. You can know exactly what you are doing. Therefore, the trouble of searching for the damaged comb teeth 50 by visual observation can be saved.

  Further, in the present embodiment, in one comb 46, the conductive wire 62 is transmitted along the outer periphery of each comb tooth 50, and the conductive wires 62 provided on the adjacent comb teeth 50 are mutually connected to the base ends of the comb teeth 50. However, the present invention is not limited to this configuration. In one comb 46, the conductive wire 62 may be provided on the outer periphery of at least one comb tooth 50. Even in this configuration, if the position of the step 14 is displaced and the position of the cleat 34 is displaced, the cleat 34 can come into contact with the conductive wire 62. Therefore, the conductive wire 62 is disconnected and the step position deviation detecting device is detected. 60 can detect a positional shift of the step 14. The conductive wire 62 can also be provided on at least one of the plurality of combs 46 arranged on the comb plate 42. Further, the conductive wire 62 may be provided on at least one of the plurality of combs 46 disposed on any one of the comb plates 42 of the entrance 12.

It is a perspective view of the conventional escalator whole. It is side sectional drawing of the conventional escalator. It is a perspective view of the conventional step. It is sectional drawing of the conventional entrance / exit. It is side sectional drawing of the escalator which concerns on this embodiment. It is a perspective view of a step. It is sectional drawing of an entrance / exit. It is a figure which shows the structure of a comb. It is a circuit diagram which shows the connection state of a step position deviation detection apparatus. It is a circuit diagram which shows the connection state of the step position shift detection apparatus of another aspect.

Explanation of symbols

  10 escalator, 12 boarding gate, 14 steps, 30 step board, 34 cleat, 35 demarcation line, 38 boarding board, 42 comb plate, 46 comb, 50 comb teeth, 60 step position detecting device, 62 conductive wire, 64 conductive wire End, 66 disconnection detector, 68 power supply, 70 switch, 72 alarm.

Claims (6)

Complate installed on boarding board,
Combs that are attached to the tip of the comb plate, and are provided with comb teeth that mesh with the cleats formed on the step board of the step with an interval,
In an escalator step displacement detecting device comprising:
Conductive wires provided on the comb teeth so as not to contact the cleats;
A disconnection detector for detecting disconnection of the conductive wire;
An escalator step displacement detecting device characterized by comprising: In the escalator step displacement detecting device according to claim 1,
The disconnection detection unit has a power supply unit that supplies current to the conductive wire,
The disconnection detection unit detects disconnection of the conductive wire by detecting a disconnection state of the current supplied from the power supply unit.
An escalator step detecting device characterized by the above. In the escalator step displacement detecting device according to claim 2,
The cleat has a demarcation line made of a non-conductive material,
The disconnection detection unit has a switch unit for turning on and off the power supply unit,
Only while the demarcation line passes through the comb teeth, the switch unit turns on the power supply unit.
An escalator step detecting device characterized by the above. In the escalator step displacement detection apparatus of any one of Claim 1 to 3,
In the comb plate, multiple combs are arranged in the width direction,
Each comb is provided with a plurality of comb teeth at predetermined intervals in the width direction,
The conductive wire is provided so that the outer periphery of each comb tooth and the conductive wires provided on adjacent comb teeth are connected to each other at the base end of the comb teeth.
An escalator step detecting device characterized by the above. In the escalator step displacement detecting device according to claim 4,
The ends of the comb-shaped conductive wires provided at both ends of each comb are electrically connected to the disconnection detection unit,
An escalator step detecting device characterized by the above. In the escalator step displacement detecting device according to claim 4,
The adjacent combs are arranged so that the conductive lines provided in each are electrically connected,
The ends of the conductive wires provided on the combs arranged at both ends of the comb plate and the disconnection detection unit are electrically connected.
An escalator step detecting device characterized by the above.

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