JP2019151430A - Escalator - Google Patents

Abstract

To provide an escalator capable of simply measuring a damage of a guard plate.SOLUTION: An escalator comprises a guard plate 70 arranged in a narrow angle part 7 and a distance sensor 78 to measure the distance to the guard plate 70, and it is judged that the guard plate 70 is damaged when the distance L measured by the distance sensor 78 is longer than a reference distance L0.SELECTED DRAWING: Figure 3

Description

  Embodiments of the present invention relate to escalators.

  Conventionally, the handrail belt of the escalator and the narrow-angle portion formed by the intersection of the upper floor portion above the handrail belt, or the handrail belt of the escalator and other escalators above the handrail belt A guard plate is disposed at the narrow angle portion formed by the intersection with the bottom portion. This guard plate is a plate for giving a warning to prevent a passenger on the escalator from getting a neck or a hand caught in the narrow angle portion.

Japanese Patent Laying-Open No. 2015-174768 JP2015-168555A

  In order to ensure the safety of passengers, the guard plate has a problem in that it is necessary for the escalator manager to check daily whether or not it is damaged visually.

  Then, in view of the said problem, embodiment of this invention aims at providing the escalator which can detect the failure | damage of a guard board easily.

  Embodiments of the present invention include (1) a narrow-angle portion formed by the intersection of a handrail belt of an escalator and an upper floor portion above the handrail belt, or (2) a handrail belt of an escalator, A guard plate disposed at a narrow angle formed by the intersection of the bottom of another escalator above the handrail belt, a distance sensor for measuring a distance to the guard plate, and a measurement distance of the distance sensor However, the escalator includes control means for determining that the guard plate is broken and outputting a notification signal when the distance is longer than a predetermined reference distance.

Explanatory drawing seen from the side of the escalator which shows one Embodiment of this invention. Explanatory drawing seen from the side of the escalator which showed the structure which detects the failure | damage of a guard board. The perspective view of the escalator seen from the lower floor. The longitudinal cross-sectional view of the escalator near a guard board. Block diagram of the escalator.

  Hereinafter, the escalator 10 of one Embodiment of this invention is demonstrated with reference to FIGS.

(1) Escalator 10
The structure of the escalator 10 will be described. As shown in FIGS. 1 and 2, a truss 12 that is a framework of the escalator 10 is supported using support angles 2 and 3 across the upper floor 4 and the lower floor 5 of the building 1.

  As shown in FIG. 1, in the upper floor side machine room 14 at the upper end of the truss 12, there are a drive unit 18 for driving the step 30, a pair of left and right drive sprockets 24, 24, a pair of left and right belt sprockets 27, 27 is provided. The drive device 18 stops the rotation of the motor 20, the speed reducer, the output sprocket attached to the output shaft of the speed reducer, the drive chain 22 driven by the output sprocket, and the motor 20. And a disc brake for holding the disc. 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 belt sprockets 27, 27 are connected by a connecting belt (not shown) and rotate in synchronization. A control device 50 for controlling the motor 20, the disc brake, and the like is provided in the machine room 14 on the upper floor side.

  As shown in FIG. 1, 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. As shown in FIG. 1, front wheels 301 of a 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 on the outer periphery of the drive sprocket 24 and a recess on the outer periphery of the driven sprocket 26. Flip up and down. The rear wheel 302 travels on the rear guide rail 25 fixed to the truss 12 as shown in FIG.

  As shown in FIG. 4, a pair of left and right decks 72, 72 are formed on the left and right sides of the step 30 above the truss 12, and a pair of left and right balustrades 36, 36 are erected from the decks 72, 72. . As shown in FIGS. 1, 3, and 4, the inside of the deck 72, that is, the step 30 side, includes a skirt guard 44 and an inner deck 74, and the skirt guard 44 extends vertically from both left and right ends of the step 30. It is erected. The inner deck 74 is provided between the upper end of the skirt guard 44 and the lower part of the balustrade 36, and is inclined so as to be higher toward the balustrade 36 side. That is, the inner deck 74 is inclined toward the opposite balustrade 36 side. As shown in FIGS. 2 and 4, the outside of the deck 72 is composed of an outer deck 76, and the upper surface of the outer deck 76 is provided horizontally.

  As shown in FIG. 1, 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.

  As shown in FIG. 1, the handrail belt 38 enters the front skirt guard 40 from the inlet portion 46 on the upper floor side and is passed over the belt sprocket 27 via the guide roller group 64, and then the guide roller group It moves in the skirt guard 44 through 66 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 belt sprocket 27 rotates together with the drive sprocket 24. Further, a pressing member 68 for pressing the handrail belt 38 traveling on the rotating belt sprocket 27 is provided.

  As shown in FIG. 1, a boarding board 32 on the upper floor side is provided horizontally at the entrance / exit on the ceiling surface of the machine room 14 on the upper floor side, and the boarding / alighting on the ceiling surface of the machine room 16 on the lower floor side is provided. A lower floor boarding board 34 is provided horizontally at the mouth. A comb-like comb 60 is provided at the tip of the boarding / alighting plate 32, and the step 30 advances or enters from the comb 60. A comb-like comb 62 is also provided on the boarding / alighting plate 34.

(2) Configuration for Measuring Breakage of Guard Plate 70 A configuration for measuring breakage of the guard plate 70 will be described with reference to FIGS. 2 and 4 are drawings showing only the portions related to the configuration for measuring the breakage of the guard plate 70 in the escalator 10 shown in FIG.

  As described above, the truss 12 of the escalator 10 is installed across the upper floor 4 and the lower floor 5 of the building 1 as shown in FIG. A triangular narrow angle portion 7 is formed between the upper floor portion 6 of the upper floor 4 of the building 1 and the handrail belt 38 of the escalator 10, and the lower surface of the upper floor portion 6 in the vicinity of the narrow angle portion 7, that is, A guard plate 70 is suspended from the ceiling surface 8 of the lower floor 5. The guard plate 70 is a plate for giving a warning to prevent a passenger on the escalator 10 from getting a neck or a hand caught in the narrow angle portion 7.

  The guard plate 70 is formed of a synthetic resin, and is formed of a transparent plate in order to improve the design appearance with respect to color. The shape of the guard plate 70 is not limited to the rectangle illustrated in FIG. 2 or the like, but may be a polygon such as a triangle or a pentagon, and is formed in a shape that matches the shape of the narrow angle portion 7.

  As shown in FIGS. 3 and 4, the distance sensor 78 is provided on the upper surface of the inner deck 74 on the opposite side of the step 30 from the position where the guard plate 70 is suspended. The distance sensor 78 is provided so as to measure the distance to the guard plate 70 as shown in FIGS. As the distance sensor 78, for example, a TOF (Time of Flight) sensor is used. The TOF sensor uses a high-speed light source of a near-infrared LED and a CMOS image sensor for acquiring distance image data, and measures the time in which the projected light pulse hits the target in real time to measure the distance image. For example, when the phase difference method is used, the distance measurement is performed by blinking the projection pulse at high speed and measuring the phase delay of the reflected light. The TOF sensor can measure the distance L to the guard plate 70 even if the guard plate 70 is backlit or the guard plate 70 is transparent.

  An electrical configuration for measuring breakage of the guard plate 70 will be described with reference to FIG. A communication unit 80 is provided inside the control device 50 and transmits / receives information related to the escalator 10 through communication with a management device 82 outside the escalator 10. A distance sensor 78 is connected to the control device 50.

  As shown in FIGS. 3 and 4, the distance sensor 78 must be provided on the upper surface of the inner deck 74 on the opposite side of the step 30 from the position where the guard plate 70 is suspended. It is not necessary to provide the distance sensor 78 directly beside in the left-right direction of the plate 70, and it may be provided on the upper surface of the inner deck 74 that is positioned obliquely in the left-right direction as long as the distance can be measured.

(3) Method for Measuring Breakage of Guard Plate 70 A method for measuring breakage of the guard plate 70 will be described.

  As shown in FIGS. 3 and 4, the distance sensor 78 always measures the distance L to the guard plate 70 and outputs it to the control device 50.

  When the distance L input from the distance sensor 78 becomes longer than the predetermined reference distance L0, the control device 50 determines that the guard plate 70 is damaged and uses the communication unit 80 to guard the management device 82. A notification signal indicating that the plate 70 is broken is output.

  The management device 82 issues a warning when the notification signal is input, and the manager of the escalator 10 can know the breakage of the guard plate.

  That is, when the guard plate 70 is damaged and no passenger is present, the distance L measured by the distance sensor 78 is, for example, the distance L1 to the ceiling surface 8, as shown in FIG. It becomes longer than the distance L0. On the other hand, when the guard plate 70 is in a normal state, the distance L measured by the distance sensor 78 is the same as the reference distance L0 as shown in FIG. The distance between the guard plate 70 and the distance sensor 78 is blocked, and the distance L measured by the distance sensor 78 is shorter than the reference distance L0.

(4) Effect According to the present embodiment, the control device 50 determines that the guard plate 70 is damaged when the distance L measured by the distance sensor 78 is longer than the reference distance L0, and the measured distance L is the reference. If the distance is equal to or shorter than the distance L0, the guard plate 70 is determined to be normal. Therefore, when the distance L to the guard plate 70 measured by the distance sensor 78 is longer than the reference distance, a notification signal can be output to notify the administrator that the guard plate 70 is damaged. Therefore, the administrator does not need to check every day whether or not the guard plate 70 is damaged, and the inspection work can be simplified.

Example of change

  In the above embodiment, the distance sensor 78 is provided on the upper surface of the inner deck 74 opposite to the guard plate 70 with the step 30 in between. Instead, the outer deck 76 directly below the guard plate 70 is provided. You may provide just above. The distance sensor 78 measures the distance to the guard plate 70 directly above. In this case, when the guard plate 70 is damaged, the measurement distance is longer than the reference distance as in the above embodiment, and it is possible to determine whether the guard plate 70 is damaged.

  Moreover, when the balustrade panel which comprises the balustrade 36 is a metal plate, you may provide in the balustrade panel of the opposite side in which the guard board 70 was provided on both sides of the step 30. FIG. Moreover, when the balustrade panel which comprises the balustrade 36 is a glass plate, in order to support one glass plate, the balustrade 36 is provided with the support pillar for every predetermined space | interval. Therefore, the distance sensor 78 may be provided on the support column of the balustrade 36 on the opposite side where the guard plate 70 is provided with the step 30 interposed therebetween.

  In the above embodiment, the guard plate 70 suspended from the handrail belt 38 of the escalator 10 and the ceiling surface 8 in the vicinity of the narrow-angle portion 7 of the upper floor portion 6 has been described. The escalator 10 is arranged so as to intersect, and is disposed near the narrow-angle portion 7 formed by the intersection of the handrail belt 38 of one escalator 10 and the bottom of another escalator 10 above the handrail belt. The guard plate 70 may be applied.

  The distance sensor may be a distance sensor other than the TOF sensor.

  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 1 ... Building, 4 ... Upper floor, 5 ... Lower floor, 6 ... Upper floor part, 7 ... Narrow angle part, 8 ... Ceiling surface, 10 ... Escalator, 12. ..Truss, 30 ... Step, 36 ... Railing, 38 ... Handrail belt, 70 ... Guard plate, 72 ... Deck, 74 ... Inner deck, 76 ... Outer deck 78 ... Distance sensor

Embodiments of the present invention include (1) a narrow-angle portion formed by the intersection of a handrail belt of an escalator and an upper floor portion above the handrail belt, or (2) a handrail belt of an escalator, A distance sensor comprising a guard plate disposed at a narrow angle portion formed by an intersection with the bottom of another escalator above the handrail belt, a TOF sensor for measuring a distance to the guard plate, and the distance When the measurement distance of the sensor is longer than a predetermined reference distance, it is determined that the guard plate is damaged and outputs a notification signal, a plurality of steps that travel at a constant traveling speed, and the left and right sides of the steps A pair of left and right balustrades on which handrail belts travel, and a pair of left and right inner decks provided on the step side below the pair of left and right balustrades, and the distance sensor sandwiches the steps Above Over de board is provided on the opposite side said deck provided a escalator. Embodiments of the present invention include (1) a narrow-angle portion formed by the intersection of a handrail belt of an escalator and an upper floor portion above the handrail belt, or (2) a handrail belt of an escalator, A distance sensor comprising a guard plate disposed at a narrow angle portion formed by an intersection with the bottom of another escalator above the handrail belt, a TOF sensor for measuring a distance to the guard plate, and the distance When the measurement distance of the sensor is longer than a predetermined reference distance, it is determined that the guard plate is damaged and outputs a notification signal, a plurality of steps that travel at a constant traveling speed, and the left and right sides of the steps It has a pair of left and right balustrades on which handrail belts travel and a balustrade panel made of a metal plate constituting the pair of left and right balustrades, and the distance sensor is provided with the guard plate across the step The provided in the balustrade panel opposite, a escalator. In addition, the embodiment of the present invention includes (1) a narrow-angle portion formed by the intersection of a handrail belt of an escalator and an upper floor portion above the handrail belt, or (2) a handrail belt of an escalator. A guard plate disposed at a narrow angle formed by the intersection with the bottom of another escalator above the handrail belt, and a distance sensor comprising a TOF sensor for measuring the distance to the guard plate; When the measurement distance of the distance sensor is longer than a predetermined reference distance, a control unit that determines that the guard plate is broken and outputs a notification signal, a plurality of steps that travel at a constant traveling speed, and the steps A pair of left and right balustrades on which the handrail belt travels, a balustrade panel made of a glass plate constituting the pair of left and right balustrades, and a support column supporting the glass plate, and the distance sensor , The guard plate across the footstep is provided on the support pillar opposite provided a escalator.

Claims (10)

(1) A narrow-angle portion formed by the intersection of the handrail belt of the escalator and the upper floor portion above the handrail belt, or (2) above the handrail belt of the escalator and the handrail belt A guard plate arranged at a narrow angle formed by the intersection with the bottom of some other escalator,
A distance sensor for measuring the distance to the guard plate;
A control means for determining that the guard plate is damaged and outputting a notification signal when a measurement distance of the distance sensor is longer than a predetermined reference distance;
With escalator. The control means determines that the guard plate is normal when the measurement distance of the distance sensor is equal to or shorter than the reference distance.
The escalator according to claim 1. The distance sensor is a TOF sensor;
The escalator according to claim 1. Multiple steps traveling at a constant travel speed,
A pair of left and right balustrades on which handrail belts run on both left and right sides of the step;
A pair of left and right inner decks provided on the step side below the pair of left and right balustrades;
Have
The distance sensor is provided on the inner deck on the opposite side where the guard plate is provided across the step,
The escalator according to claim 3. The inner deck is inclined and faces the balustrade side facing each other,
The distance sensor is provided on the upper surface of the inner deck.
The escalator according to claim 4. Multiple steps traveling at a constant travel speed,
A pair of left and right balustrades on which handrail belts run on both left and right sides of the step;
An outer deck provided outside the lower part of the pair of left and right balustrades;
Have
The distance sensor is provided on the upper surface of the outer deck just below the guard plate,
The escalator according to claim 3. Multiple steps traveling at a constant travel speed,
A pair of left and right balustrades on which handrail belts run on both left and right sides of the step;
A balustrade panel made of a metal plate constituting the pair of left and right balustrades;
Have
The distance sensor is provided on the balustrade panel on the opposite side where the guard plate is provided across the step,
The escalator according to claim 3. Multiple steps traveling at a constant travel speed,
A pair of left and right balustrades on which handrail belts run on both left and right sides of the step;
A balustrade panel made of a glass plate constituting the pair of left and right balustrades;
A support column for supporting the glass plate;
Have
The distance sensor is provided on the support column on the opposite side where the guard plate is provided across the step.
The escalator according to claim 3. A communication unit that transmits the notification signal to an external management device;
The escalator according to claim 1. The shape of the guard plate is a rectangle, a triangle, or a polygon.
The escalator according to claim 1.

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