JP6524308B1 - Passenger conveyor - Google Patents

Abstract

An object of the present invention is to provide a passenger conveyor capable of applying a certain resistance to a handrail belt and easily confirming its traveling state. In a handrail drive confirmation mode, a handrail belt (38) is pressed against a pressing plate (124) by n pressing rollers (104) while a step (30) is run at a constant running speed by a drive device (18). When the detection speed detected by the sensor is faster than the reference speed, a normal signal is output. [Selected figure] Figure 3

Description

  Embodiments of the present invention relate to a passenger conveyor.

  In a passenger conveyor such as an escalator or a moving sidewalk, even if the handrail belt travels with a certain resistance, the handrail belt must travel at the same running speed in synchronization with the steps. Therefore, conventionally, in this confirmation test, while the test operation is performed, the worker stands at the getting on / off position, pulls the handrail belt to the opposite side to the running direction with a certain resistance, and the handrail belt does not stop running. It was confirmed.

JP, 2012-218914, A JP 2018-008757 A

  When performing the above-mentioned confirmation test, in order to realize pulling a handrail belt with fixed resistance, the worker attached the scale for measuring this resistance to a handrail belt, and was measured. Therefore, there is a problem that the operation of the confirmation test is complicated.

  Therefore, in view of the above-mentioned problems, an object of the present invention is to provide a passenger conveyor that can apply a certain resistance to a handrail belt and easily check the traveling state thereof.

  An embodiment of the present invention comprises a truss, a plurality of steps disposed on the truss and connected in an endless manner, a handrail belt, driving means for causing the steps to travel at a predetermined traveling speed, and the handrail belt Handrail driving means for driving in synchronization with the steps, a pressing member disposed along the traveling path of the handrail belt, and a row disposed along the traveling path of the handrail belt, and the pressing member In the handrail drive confirmation mode, the step means is driven by the driving means in the handrail drive confirmation mode, and n pressing rollers (where n> 1) pressing the handrail belt, the speed detecting means detecting the belt speed of the handrail belt, When traveling at a constant traveling speed, the handrail belt is pressed against the pressing member by the n pressing rollers, and a normal signal is output when the detection speed detected by the speed detection means is faster than the reference speed The And control means, a passenger conveyor having.

Side surface explanatory drawing of the escalator of this embodiment. Explanatory drawing of the part which drives a handrail belt. The side view of a traveling resistance measuring device and a speed detection device. Longitudinal sectional view of a running resistance measuring device. Block diagram of the escalator. Flowchart of handrail drive confirmation mode.

  Hereinafter, the escalator 10 which is a passenger conveyor of one embodiment of the present invention will be described with reference to FIGS. 1 to 6.

(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 viewed from the side.

  As shown in FIG. 1, a truss 12 which is a framework of the escalator 10 is supported by using supporting angles 2 and 3 across the upper and lower floors of the building 1.

  Inside the machine room 14 on the upper floor side at the upper end of the truss 12, a drive unit 18 for running the steps 30, a pair of left and right main drive sprockets 24, 24, and a pair of left and right handrail sprockets 27, 27 are provided. . The driving device 18 stops the rotation of the motor 20, the reduction gear, the output sprocket attached to the output shaft of the reduction gear, the drive chain 22 driven by the output sprocket, and the motor 20, and the stopped state And holds a disc brake. The drive chain 22 rotates the main drive sprocket 24. The pair of left and right main drive sprockets 24, 24 and the pair of left and right handrail sprockets 27, 27 are connected by a connecting belt (not shown) and synchronously rotate. Further, inside the machine room 14 on the upper floor side, a control unit 50 that controls the motor 20, a disk brake, and the like is provided.

  A driven sprocket 26 is provided in the lower machine room 16 at the lower end of the truss 12. A pair of left and right endless step chains 28, 28 are bridged between the main drive sprocket 24 on the upper floor side and the driven sprocket 26 on the lower floor side. That is, the wheels 301 of the plurality of steps 30 are attached at equal intervals to the pair of left and right step chains 28, 28. The wheels 301 of the step 30 travel along a guide rail (not shown) fixed to the truss 12 and engage with recesses in the outer periphery of the main drive sprocket 24 and recesses in the outer periphery of the driven sprocket 26 Invert. Further, the wheels 302 travel on the guide rails 25 fixed to the truss 12.

  On the left and right sides of the truss 12, a pair of left and right balustrades 36, 36 are provided upright. A handrail rail 39 is provided above the balustrade 36, and the endless handrail belt 38 moves along the handrail rail 39. A front skirt guard 40 on the upper floor is provided at the lower front of the upper floor of the balustrade 36, and a front skirt guard 42 on the lower floor is provided at the lower front on the lower floor. The inlet parts 46 and 48 which are the entrances and exits of the handrail belt 38 respectively project.

  A skirt guard 44 is provided at a lower part of the side of the balustrade 36, and the step 30 travels between the pair of left and right skirt guards 44, 44. Control 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 pair of left and right handrail belts 38 respectively enter the front skirt guard 40 from the inlet portion 46 on the upper floor side, and each handrail belt 38 is driven based on the handrail drive device 70 driven by the handrail sprocket 27 It moves in the guard 44 and appears outside the front skirt guard 42 from the inlet 48 on the lower floor side. Further, inside the skirt guard 44, a traveling resistance measuring device 100 for measuring the traveling resistance of the handrail belt 38 is provided. The handrail drive device 70 and the traveling resistance measurement device 100 will be described in detail later.

  On the ceiling of the machine room 14 on the upper floor side, an entrance plate 32 on the upper floor side is horizontally provided at the entrance and exit of the machine room 16 on the lower floor side. A passenger board 34 is provided horizontally. A comb-like comb 60 is provided at the tip of the landing plate 32, and the step 30 advances or intrudes from the comb 60. Further, a comb-like comb 62 is also provided on the board 34.

(2) Handrail drive device 70
Next, the handrail drive device 70 for causing the handrail belt 38 to travel will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the handrail drive device 70 is provided inside the deck surrounded by the skirt guard 44 of the escalator 10 near the upper floor. The handrail drive device 70 includes a handrail drive roller 72, a handrail driven roller 74, a drive sprocket 76, and an auxiliary sprocket 78.

  As shown in FIG. 2, the four handrail drive rollers 72 are provided above the handrail belt 38 and are rotatable in one row in the horizontal direction.

  As shown in FIG. 2, the four handrail driven rollers 74 are rotatably mounted in one row in the horizontal direction above the handrail belt 38, and four handrail driving rollers 72 for rotating four and four The handrail belt 38 is held by the handrail driven roller 74 and traveled.

  The four drive sprockets 76 are mounted coaxially with the four handrail drive rollers 72, as shown in FIG. 2, and the auxiliary sprocket 78 is rotatably provided between the two central drive sprockets 76, 76. It is provided. Each drive sprocket 76 rotates with handrail drive roller 72. The handrail drive roller 72 is not attached to the auxiliary sprocket 78.

  As shown in FIG. 2, two guide sprockets 80 and 82 are rotatably provided between the handrail sprocket 27 and the handrail drive device 70. An endless drive belt 84 is stretched around the handrail sprocket 27, the four drive sprockets 76, the one auxiliary sprocket 78, and the guide sprockets 80, 82. As shown in FIG. 2, the drive belt 84 passes the lower circumferential surface of the handrail sprocket 27, the guide sprocket 80 and the guide sprocket 82, and the upper circumferential surface of the first drive sprocket 76 and the upper circumference of the second drive sprocket 76. The surface, the lower circumferential surface of the auxiliary sprocket 78, the upper circumferential surface of the third drive sprocket 76, the upper circumferential surface of the fourth drive sprocket 76, and the position of the handrail sprocket 27 are reached again. Thus, when the handrail sprocket 27 rotates in synchronization with the main drive sprocket 24 that drives the step 30, the handrail drive rollers 72 coaxially provided to the four drive sprockets 76 also rotate in synchronization.

(3) Running resistance measuring device 100
Next, the traveling resistance measuring device 100 will be described with reference to FIG. 1, FIG. 3, and FIG.

  The running resistance measuring device 100 is provided inside the skirt guard 44 near the lower floor side as shown in FIG. 1, and as shown in FIG. 3, there are five provided under the handrail belt 38 running substantially horizontally. , A pressure plate 124 provided above the pressure roller 104 with the handrail belt 38 interposed therebetween, and a speed detection device 126.

  As shown in FIG. 3, a substrate 102 for supporting the traveling resistance measuring device 100 is attached substantially horizontally to a frame member (not shown) of the truss 12 inside the skirt guard 44 near the lower floor side. A pressing plate 124 is provided on the top of the substrate 102.

  As shown in FIG. 3, five substantially rectangular upper and lower plates 106 are arranged in a line on the substrate 102, and pressing rollers 104 are provided on the upper and lower plates 106 so as to be rotatable about the rotation shaft 129. There is.

  As shown in FIG. 3, one end of the upper and lower plates 106 rotates around a rotating shaft 108, and the rotating shaft 108 is attached to the substrate 102. The other end of the upper and lower plates 106 is a free end, and the support plate 110 protrudes laterally. A lower support plate 112 and an upper support plate 114 project from the substrate 102 above and below the support plate 110, respectively. Screw rods 118 are vertically arranged on the lower receiving plate 112, the support plate 110, and the upper receiving plate 114 which are protruded from the substrate 102. The screw rod 118 is fixed to the upper support plate 114, movably penetrates the support plate 110, and is movably fixed to the lower support plate 112 by a nut 120.

  As shown in FIG. 3, a coiled spring 116 is disposed between the lower receiving plate 112 and the support plate 110 with the screw rod 118 housed inside. An electromagnetic coil 122 is disposed around the screw rod 118 and between the upper support plate 114 and the support plate 110. The spring 116 urges the other end of the upper and lower plates 106 in a direction to press upward, whereby the pressing roller 104 presses the handrail belt 38 against the pressing plate 124 (solid line state in FIG. 4). On the other hand, when the electromagnetic coil 122 is excited, the other end of the upper and lower plates 106 is pushed down against the biasing force of the spring 116, and the pressing roller 104 separates from the handrail belt 38 as shown in FIG. State of the two-dot chain line).

  As shown in FIG. 3, the speed detection device 126 is attached to the side of the traveling resistance measurement device 100. The speed detection device 126 will be described. A second substrate 140 supporting the speed detection device 126 is provided on a frame (not shown) of the truss 12.

  As shown in FIG. 3, a speed pressing roller 138 is rotatably attached to the second substrate 140 above the position where the handrail belt 38 travels.

  As shown in FIG. 3, the second upper and lower plates 142 are disposed on the second substrate 140 below the position where the handrail belt 38 travels, and one end of the second upper and lower plates 142 is the second substrate by the rotating shaft 144. It is rotatably mounted at 140. The driven roller 128 is attached to the second upper and lower plates 142 by the rotation shaft 130. The driven roller 128 contacts or does not contact the handrail belt 38 as the second upper and lower plates 142 rotate around the rotation shaft 144, but normally the driven roller 128 contacts the handrail belt 38, The handrail belt 38 is nipped by the driven roller 128 and the speed pressing roller 138, and the driven roller 128 rotates as the handrail belt travels.

  As shown in FIG. 3, a disc-shaped rotating member 132 is attached to the rotating shaft 130 of the driven roller 128. A plurality of (for example, twelve) detection pieces 134 project at equal angles from the outer peripheral surface of the rotation member 132, and the rotation member 132 is in a gear shape as a whole. The rotating member 132 rotates with the driven roller 128. The rotation member 132 is provided with a count sensor 136. The count sensor 136 counts the passing number per unit time of the rotating detection piece 134, and outputs the counted number (detection pulse number P) to the control unit 50.

  The speed detection device 126 detects the traveling speed of the handrail belt 38 and the state of whether or not it is stopped. That is, when a pulse is input from the speed detection device 126 at a constant interval, the handrail belt 38 travels at a constant traveling speed, and a pulse is input at intervals longer than the predetermined interval, or a pulse is input. If not, it can be determined that the traveling of the handrail belt 38 is abnormal.

(4) Electrical Configuration of Escalator 10 Next, the electrical configuration of the escalator 10 will be described based on the block diagram of FIG.

  As shown in FIG. 5, the motor 20 formed of an induction motor is a three-phase motor, and the three-phase power supply 150 to the noise filter circuit 152, a conversion circuit 154 for converting alternating current into direct current, a power regeneration circuit 156, and an inverter circuit 158 A three-phase inverter power supply is supplied, and the control unit 50 can control the rotation direction and the rotation speed.

  Further, as shown in FIG. 5, the control unit 50 is connected to the inverter circuit 158, the control panels 52 and 56, and the speakers 54 and 58, and is connected to the traveling resistance measuring device 100 and the speed detecting device 126. A communication unit 160 that communicates with the outside is connected.

(5) Operating State of Running Resistance Measuring Device 100 The operating state of the running resistance measuring device 100 will be described with reference to FIGS. 3 and 4.

  When the passenger is carried on the step 30 and travels at a normal traveling speed (for example, 30 m / min (hereinafter referred to as "reference speed"), the handrail belt 38 is grasped by the hand of the passenger and the handrail belt 38 However, in order to prevent the passenger from falling, it is necessary to synchronize the travel of the steps 30 and the handrail belt 38, so that the handrail belt 38 has a certain resistance. Even if power is applied, the traveling resistance measuring device 100 of this embodiment is used to confirm that the vehicle travels at a constant traveling speed.

  First, the control unit 50 switches to the handrail drive confirmation mode different from the normal operation. This mode switching is switched remotely via the communication unit 160 at night when the escalator 10 is not in operation. In the normal operation mode, the five pressure rollers 104 of the traveling resistance measuring device 100 stand by in a state of being separated from the handrail belt 38 by the respective electromagnetic coils 122 as indicated by the two-dot chain line in FIG. There is.

  Next, in the same manner as in the normal operation mode, the control unit 50 causes the handrail belt 38 to travel at a reference speed in synchronization with the steps 30 to perform a test operation.

  Next, as shown in FIG. 3, the control unit 50 presses the handrail belt 38 against the pressing plate 124 by the five pressing rollers 104 of the traveling resistance measuring device 100. Each pressing force at this time is constant, for example, a load of 10 kg. In this pressed state, the detected pulse number P corresponding to the current traveling speed of the handrail belt 38 is input from the speed detection device 126 to the control unit 50. If the detected pulse number P> the reference pulse number P0 corresponding to the reference speed, the control unit 50 outputs the normal signal to the outside through the communication unit 160, assuming that the travel of the handrail belt 38 is normal. On the other hand, in the case of P0 => P, the number of the pressing rollers 104 pressing the handrail belt 38 is reduced by one, and the pressing is performed by four. That is, it presses with 40 kg. In this pressing state, when P> P0, an error signal indicating that the reference speed can be maintained is output to the outside by pressing by the four pressing rollers 104.

  Then, the control unit 50 releases the pressing of the one pressing roller 104 if P <= P even if the one pressing roller 104 is released. In this manner, the pressure on the pressure roller 104 is released until P> P0, and an error signal indicating that the reference speed can be maintained by the number of pressure rollers 104 when this condition is satisfied is output to the outside. . Finally, even if the pressing force of the five pressing rollers 104 is released, if P <= P0, the control unit 50 outputs an error signal to the effect that the zero pressing rollers 104 have pressed.

  In the remote monitoring device, when a normal signal is input, the escalator 10 is switched from the handrail drive confirmation mode to the normal operation mode to continue the operation. On the other hand, when an error signal is input, it is determined that the escalator 10 is at fault and is stopped.

  The operation state of the above-described running resistance measuring device 100 will be described with reference to the flowchart of FIG.

  In step S1, the normal operation mode is switched to the handrail drive confirmation mode, and the process proceeds to step S2.

  In step S2, n is set to 5 and the process proceeds to step S3.

  In step S3, the test operation of the escalator 10 is performed at the reference speed, and the process proceeds to step S4.

  In step S4, the handrail belt 38 is pressed by the n pressing rollers 104, and the process proceeds to step S5.

  In step S5, the speed detection device 126 detects the detection pulse number P, and the process proceeds to step S6.

  In step S6, when the number of detected pulses P> the number of reference pulses P0, the process proceeds to step S7 (for y), and when P <= P0, the process proceeds to step S10 (for n).

  In step S7, it is determined whether n = 5. If n = 5, the process proceeds to step S8 (in the case of y), and if it is not n = 5, the process proceeds to step S9 (in the case of n).

  Since n = 5 in step S8, even if there is a certain resistance because P> P0 even if the pressure is applied by the five pressure rollers 104, the handrail belt 38 can maintain the reference speed and the normal signal Is output to the outside and finished.

  In step S9, P is not 0 when n = 5 but 0 to 4 pressing rollers 104, so P> P0, so an error signal indicating that the reference velocity can be maintained by n pressing rollers 104 is output to the outside End.

  In step S10, n = 0, that is, when there is no pressure roller 104 currently pressed, the process returns to step S9 (in the case of y), and when 5 => n> 0, the process proceeds to step S11 (n If).

  In step S11, n = n−1, and the process returns to step S4. In step S4, the pressing of one pressing roller 104 is released, and the handrail belt 38 is pressed by the pressing roller 104 reduced by one. With regard to the position of the pressure roller 104 for releasing the pressure, it may be released in order from the left, or may be released in order from the right. You may cancel it.

(6) Effects According to the present embodiment, even if the handrail belt is initially pressed by the five pressure rollers 104 and given a certain resistance, if it travels at the reference speed it outputs a normal signal and travels at the reference speed If this is not possible, the number of pressure rollers 104 is gradually reduced, and it is possible to reliably confirm even at a distance whether the vehicle can travel at the reference speed if the resistance is reduced.

  Moreover, even if the handrail belt 38 applies a certain resistance, if the reference speed can be maintained, the handrail drive check mode can be automatically returned to the normal operation mode.

Modified example

  In the above embodiment, as the handrail drive means for driving the handrail belt 38, the pair of handrail drive rollers 72 and the handrail driven roller 74 sandwich and run, but instead, one handrail drive roller is used as the handrail belt 38 Alternatively, the handrail belt 38 may be run. In this case, in order to prevent the handrail belt 38 from slipping, the handrail belt 38 is pressed against the handrail drive roller by a plurality of handrail driven rollers having a diameter smaller than that of the handrail drive roller.

  Moreover, in the said embodiment, although applied and demonstrated to the escalator 10, it may replace with this and may apply to the moving sidewalk.

  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, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 10 ... Escalator, 12 ... Truss, 30 ... Step, 38 ... Handrail belt, 70 ... Handrail drive device, 100 ... Running resistance measuring device, 102 ... Board | substrate, 104 · · Pressure roller, 106 · · · upper and lower plates, 108 · · · rotating shaft, 110 · · · support plate, 122 · · · electromagnetic coil, 124 · · · pressure plate, 126 · · · speed detection device, 128 · · · · · · · · · · · · · Follower roller, 132 · · · rotating member, 134 · · · detection piece, 136 · · · count sensor, 138 · · · · · · · ·

Claims (10)

With the truss,
A plurality of steps arranged on the truss and connected endlessly;
Handrail belt,
Driving means for causing the steps to travel at a predetermined traveling speed;
A handrail drive means for driving the handrail belt in synchronization with the steps;
A pressing member disposed along the traveling path of the handrail belt;
N (where n> 1) pressing rollers are disposed in a line along the traveling path of the handrail belt and press the handrail belt against the pressing member;
Speed detection means for detecting the belt speed of the handrail belt;
In the handrail drive confirmation mode, in a state where the step is caused to travel at a constant traveling speed by the driving means, the handrail belt is pressed against the pressing member by the n pressing rollers and detection is detected by the speed detection means Control means for outputting a normal signal when the speed is faster than the reference speed;
Passenger conveyor with. The control means presses the handrail belt against the pressing member by the n pressing rollers.
When the detection speed is lower than the reference speed, the pressing of one of the pressing rollers is released,
(N-1) The handrail belt is pressed against the pressing member by the pressing rollers, and an error signal is output when the detected speed in that case is faster than the reference speed, and the detected speed is the reference speed When it is slower, the pressure on the pressure roller is sequentially released one by one until the detection speed becomes higher than the reference speed, and the detection speed becomes higher than the reference speed. Output an error signal,
The passenger conveyor according to claim 1. A board is provided on the truss of the passenger conveyor,
N upper and lower plates are disposed on the substrate,
n said pressure rollers are rotatably provided on said n upper and lower plates, respectively;
One end of the upper and lower plates is rotatably provided on the substrate,
At the free end which is the other end of the upper and lower plates, there is provided a spring for urging the pressing roller to press the handrail belt against the pressing member.
An electromagnetic coil is provided to move the other end of the upper and lower plates by excitation against the biasing force of the spring.
The passenger conveyor according to claim 1. The control means causes the step to travel at the traveling speed and switches from a normal operation mode in which a passenger is loaded to the handrail drive confirmation mode.
The passenger conveyor according to claim 1. The speed detection means
A speed pressing roller for pressing the handrail belt;
A driven roller which rotates with the traveling of the handrail belt with the speed pressing roller interposed therebetween;
A rotating member which is coaxially rotated with the driven roller and in which a plurality of detection pieces project outward at equal angles;
A count sensor that counts the number of passing the detection piece per unit time;
Have
The control means sets the number counted by the count sensor as the detection speed.
The passenger conveyor according to claim 1. The control means outputs an (n-1) value together with the error signal when the handrail belt is pressed against the pressing member by (n-1) the pressing rollers.
The passenger conveyor according to claim 2. n = 5 and the pressure rollers apply a load of 10 kg, respectively
The passenger conveyor according to claim 1. The handrail driving means causes the handrail belt to run while being held between a plurality of sets of handrail driving rollers and handrail driven rollers.
The passenger conveyor according to claim 1. The handrail drive means is configured such that the handrail belt is stretched over one handrail drive roller, and a plurality of handrail driven rollers press the handrail belt against the handrail drive roller.
The passenger conveyor according to claim 1. The passenger conveyor is an escalator or a moving sidewalk,
The passenger conveyor according to claim 1.

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