CN211521320U

CN211521320U - Passenger conveyor

Info

Publication number: CN211521320U
Application number: CN201922155549.9U
Authority: CN
Inventors: 曾我宗则
Original assignee: Toshiba Elevator Co Ltd
Current assignee: Toshiba Elevator and Building Systems Corp
Priority date: 2019-01-07
Filing date: 2019-12-05
Publication date: 2020-09-18
Anticipated expiration: 2029-12-05
Also published as: JP6772303B2; JP2020109033A

Abstract

Embodiments of the present invention relate to passenger conveyors. The utility model provides a can shorten the total length of connecting safety device and controlling means's cable, and the passenger conveyer of undervoltage ization. It has the following components: a truss 12; a step 30 connected in a ring shape and circulating in the truss 12; a drive 18 that drives the steps 30; a step chain 28 that transmits a driving force from the driving device 18 to the steps 30; a guide rail 25 that runs the steps 30; skirt guards 44 provided on both sides of the step 30; a balustrade 36 erected on the skirt guard 44; a handrail track 39 provided on the outer periphery of the balustrade 36; a handrail belt 38 that moves cyclically along a handrail rail 39; inlet portions 46 and 48 which are entrances and exits of the handrail 38 provided in the apron guard 44; a safety device 70, 72 having a wireless transmitter 70b, 72b, a receiver 74, 76 having a wireless receiver 74a, 76a receiving the operating signal from the safety device 70, 72.

Description

Passenger conveyor

The application is based on Japanese patent application 2019-000547 (application date: 1/7 in 2019), and benefits are enjoyed from the application. This application is incorporated by reference into this application in its entirety.

Technical Field

The utility model discloses an embodiment relates to a passenger conveyer.

Background

Safety devices are provided at various locations of the passenger conveyor, which are connected in series by cables and to the control device. Therefore, since the total length of the cable becomes long and the voltage drop becomes large, a high voltage is required.

SUMMERY OF THE UTILITY MODEL

Therefore, an embodiment of the present invention has been made in view of the above problems, and an object of the present invention is to provide a passenger conveyor capable of reducing the total length of a cable connecting a safety device and a control device and reducing the voltage.

A passenger conveyor, wherein,

the utility model discloses an embodiment has: a truss, steps that circulate in the truss connected in a ring shape, a drive device that drives the steps, a step chain that transmits drive force from the drive device to the steps, a guide rail for the steps to travel, skirtings provided on both sides of the steps, handrails provided upright on the skirtings, handrail guide rails provided on the outer periphery of the handrails, a handrail belt that circulates along the handrail guide rails, an inlet section provided on the skirtings as an inlet and an outlet of the handrail belt, and a wireless transmitter; further comprising: a safety device that transmits an operation signal using the wireless transmitter when the safety device detects an abnormality; a wireless receiver that receives the operation signal from the security device; a receiver that transmits a stop signal for stopping the driving device when receiving the operation signal; and a control device connected to the receiver through a cable, and controlling the driving device to stop when the control device receives the stop signal from the receiver.

According to the passenger conveyor with the structure, the total length of the cable for connecting the safety device and the control device can be shortened, and the voltage can be reduced.

Drawings

Fig. 1 is an explanatory view showing an escalator according to an embodiment of the present invention, viewed from the side.

Fig. 2 is a perspective view showing an escalator according to an embodiment of the present invention.

Fig. 3 is a block diagram for explaining an electrical configuration of an escalator according to an embodiment of the present invention.

Detailed Description

Next, an escalator 10 according to an embodiment of the present invention will be described based on fig. 1 to 3.

(1) Escalator 10

The structure of the escalator 10 will be described with reference to fig. 1. Fig. 1 is an explanatory view of an escalator 10 viewed from the side.

A truss 12 as a frame of the escalator 10 spans over the upper and lower floors of the building 1 and is supported using

support corners

2, 3.

A driving device 18 for moving the steps 30, a pair of left and right transmission sprockets 24, and a pair of left and

right belt sprockets

27, 27 are provided inside the machine room 14 on the upstairs side of the upper end of the truss 12. The drive device 18 includes a motor 20 including an induction motor (induction motor), a speed reducer, an output sprocket attached to an output shaft of the speed reducer, a transmission chain 22 driven by the output sprocket, and a disc brake capable of stopping and holding the rotation of the motor 20 in a stopped state. The drive chain 22 rotates the drive sprocket 24. The pair of left and right transmission sprockets 24, 24 and the pair of left and

right belt sprockets

27, 27 are connected by a connecting belt (not shown) to rotate synchronously. Further, a control device 50 for controlling the motor 20, the disc brake, and the like is provided inside the machine room 14 on the upper floor side.

A driven sprocket 26 is provided inside the machine room 16 on the lower floor side of the lower end portion of the truss 12. A pair of left and right

endless step chains

28, 28 are hung between the 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 to the pair of right and

left step chains

28, 28 at equal intervals. The wheels 301 of the steps 30 run along a guide rail (not shown) fixed to the truss 12, and engage with the recesses in the outer circumferential portion of the drive sprocket 24 and the recesses in the outer circumferential portion of the driven sprocket 26 to turn up and down. Further, wheels 302 travel on rails 25 fixed to 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 provided upright. A handrail guide 39 is provided on the upper portion of the balustrade 36, and the handrail belt 38 moves along the handrail guide 39. A front skirt guard 40 on the upper floor side is provided on the lower front portion on the upper floor side of the balustrade 36, a front skirt guard 42 on the lower floor side is provided on the lower front portion on the lower floor side, and inlet

portions

46 and 48 as an outlet and an inlet of the handrail belt 38 protrude from the

front skirt guards

40 and 42, respectively. A skirt guard panel 44 is provided at the lower side of the balustrade 36, and the step 30 travels between a left and right pair of

skirt guard panels

44, 44.

Control panels

52 and 56 and

speakers

54 and 58 are provided on the inner surfaces of the skirting boards 44 on the upper and lower floors, respectively.

The handrail belt 38 enters the front skirt guard 40 from the entrance 46 on the upper floor side, hangs on the belt sprocket 27 by the guide roller group 64, then moves within the skirt guard 44 by the guide roller group 66, and emerges outside the front skirt guard 42 from the entrance 48 on the lower floor side. Also, when the belt sprocket 27 rotates together with the driving sprocket 24, the handrail belt 38 will move in synchronization with the steps 30. Further, it has a pressing member 68 for pressing the traveling handrail belt 38 against the rotating belt sprocket 27.

At the entrance on the ceiling surface of the upper floor side machine room 14, an entrance plate 32 on the upper floor side is horizontally provided, and at the entrance on the ceiling surface of the lower floor side machine room 16, an entrance plate 34 on the lower floor side is horizontally provided. A comb-tooth-shaped comb 60 is provided at the front end of the landing plate 32, and the steps 30 are pushed or entered from the comb 60. Further, a comb 62 having a comb-like shape is also provided on the ascending/descending plate 34.

Safety devices

70, 72 for detecting jammed objects are provided at the

inlet portions

46, 48.

Further, a receiver 74 is provided in the machine room 14, the receiver 74 being for receiving the operation signal transmitted from the safety device 70, and a receiver 76 is provided in the machine room 16, the receiver 76 being for receiving the operation signal transmitted from the safety device 72.

(2) Electrical arrangement for escalator 10

The electrical configuration of the escalator 10 will be described below with reference to fig. 2 and 3.

The

safety devices

70 and 72 include: a switch (not shown),

piezoelectric actuators

70a, 72a for converting mechanical energy applied by the switch into electrical energy,

wireless transmitters

70b, 72b for transmitting an operation signal indicating that the

safety devices

70, 72 have detected an abnormality, and

thermoelectric modules

70c, 72c for generating heat using the electrical energy obtained by the

piezoelectric actuators

70a, 72 a.

The

receivers

74, 76 have

wireless receivers

74a, 76a for receiving the operation signals transmitted by the

safety devices

70, 72 and thermal images 74b, 76b for detecting temperature changes of the

thermoelectric modules

70c, 72c, which are connected to the control device 50 by a cable 82.

The

thermoelectric modules

70c, 72c are disposed within the truss 12 and connected to the

piezoelectric actuators

70a, 72a provided at the

inlet portions

46, 48 by cables 84. Thus, heating of the

thermoelectric modules

70c, 72c may be detected by thermal imaging 74b, 76b of

receivers

74, 76 disposed in the truss 12.

The control device 50 is also connected to the drive device 18, the

control panels

52, 56 and the

loudspeakers

54, 58.

(3) When there is an object stuck at the inlet portion 48

In the above embodiment, a case where an object is stuck at the inlet portion 48 will be described with reference to fig. 2 and 3.

When an object is jammed at the inlet portion 48, a switch (not shown) of the safety device 72 will be depressed and mechanical energy will be applied to the piezoelectric actuator 72 a. The piezoelectric actuator 72a will then convert the mechanical energy to electrical energy, which the safety device 72 will then use to transmit an operating signal by the wireless transmitter 72b indicating that the safety device 72 has detected an anomaly.

Then, the receiver 76 receives the operation signal transmitted from the safety device 72 through the wireless receiver 76a, and transmits a stop signal for stopping the driving device 18 to the control device 50.

The control device 50, having inputted the stop signal from the receiver 76, will stop the drive device 18 and will issue a warning using the

speakers

54, 58.

Further, the safety device 72 performs heat generation by the thermoelectric module 72c using the electric energy converted by the piezoelectric actuator 72 a.

Also, even if the wireless receiver 76a of the receiver 76 does not receive the operation signal transmitted from the safety device 72, when the thermal imaging 76b connected to the receiver 76 as a backup function detects the heat generation, the driving device 18 is stopped and a stop signal is transmitted to the control device 50.

The control device 50, having inputted the signal from the receiver 76, will stop the drive device 18 and will issue a warning using the

speakers

54, 58.

(4) Effect

According to the present embodiment, by connecting the

safety devices

70 and 72 and the

receivers

74 and 76 by wireless, the cables between the

safety devices

70 and 72 and the

receivers

74 and 76 can be omitted, the total length of the cables can be shortened, and the voltage can be reduced.

In addition, when the

safety devices

70, 72 detect an abnormality, the

thermoelectric modules

70c, 72c of the

safety devices

70, 72 generate heat, which is detected by the thermal images 74b, 76b of the

receivers

74, 76. Thus, even when the wireless communication between the

safety devices

70 and 72 and the

receivers

74 and 76 fails, the

thermoelectric modules

70c and 72c and the thermal images 74b and 76b function as backups, and the

receivers

74 and 76 transmit information that the

safety devices

70 and 72 detect an abnormality to the control device 50, thereby stopping the operation of the escalator 10.

[ ALTERNATION ]

In the above embodiment, the case where the

safety devices

70 and 72 detect that the object is jammed in the

entrance portions

46 and 48 has been described as an example, but the present invention is not limited to this, and may detect that the object is jammed between the skirt guard 44 and the step 30, that the step chain 28 is broken, that the step 30 is separated from the guide rail 25, or that the emergency stop button is pressed.

In the above embodiment, the

safety devices

70 and 72 have the

thermoelectric modules

70c and 72c and the

receivers

74 and 76 have the thermographs 74b and 76b as backup examples, but the

safety devices

70 and 72 may have infrared ray irradiation devices and the

receivers

74 and 76 may have current collecting devices for detecting infrared rays.

When the

safety devices

70 and 72 detect an abnormality, the infrared irradiation device irradiates infrared rays, and when the power collecting device included in the

receivers

74 and 76 detects the infrared rays, the

receivers

74 and 76 transmit a signal indicating that the

safety devices

70 and 72 detect an abnormality to the control device 50. Thus, even when the wireless communication between the

safety devices

70 and 72 and the

receivers

74 and 76 is failed, the infrared radiation device and the power collecting device function as a backup, and the

receivers

74 and 76 transmit the information that the

safety devices

70 and 72 detect the abnormality to the control device 50, thereby stopping the operation of the escalator 10.

When the escalator 10 is being managed by an external management device, the

receivers

74, 76 of the escalator 10 have a second wireless transmitter, which may also be a second wireless transmitter, that transmits a stop signal to the management device that is external to the escalator 10.

In the above embodiment, the description has been given of the case where the present invention is applied to the escalator 10, but the present invention may be applied to a moving walkway.

Although one embodiment of the present invention has been described above, this embodiment is presented by way of example only and is not intended to limit the scope of the invention. These new embodiments may be implemented in various other forms, and various omissions, substitutions, and changes may be made without departing from the spirit of the inventions. These embodiments and modifications thereof are included in the scope and gist of the present invention, and are included in the scope of the present invention recited in the claims and equivalents thereof.

Claims

1. A passenger conveyor, comprising:

a truss;

a step that moves cyclically within the truss that is joined in a loop;

a drive for driving the steps;

a step chain that transmits a driving force from the driving device to the steps;

a rail for the steps to travel;

the skirt guard plates are arranged on two sides of the stair;

the guardrail is vertically arranged on the skirt guard board;

the handrail guide rail is arranged on the periphery of the handrail;

a handrail belt that moves cyclically along the handrail guide rail;

the inlet part is arranged on the apron guard board and is used as an entrance and an exit of the handrail belt;

a safety device having a wireless transmitter with which an operation signal is transmitted when an abnormality is detected;

a receiver having a wireless receiver that receives the operation signal from the safety device, and that transmits a stop signal that stops the driving device when receiving the operation signal;

a control device connected to the receiver through a cable and performing control to stop the driving device when the stop signal is received from the receiver.

2. The passenger conveyor according to claim 1,

the safety device has a piezoelectric actuator that converts mechanical energy generated due to the occurrence of an abnormality into electrical energy.

3. The passenger conveyor according to claim 2,

the safety device has a thermoelectric module and a safety device,

the receiver is provided with a thermal image,

when the safety device detects abnormality, the thermoelectric module is heated by using the electric energy generated by the piezoelectric actuator,

the receiver transmits the stop signal to the control device when the thermal imaging detects a temperature change of the thermoelectric module even without receiving the operation signal transmitted by the safety device.

4. The passenger conveyor according to claim 2,

the security device is provided with an infrared irradiation device,

the receiver is provided with a current collecting device,

when the safety device detects abnormality, the infrared irradiation device is irradiated with infrared rays by using the electric energy generated by the piezoelectric actuator,

the receiver transmits the stop signal to the control device when the current collector detects the infrared ray irradiated by the infrared ray irradiation device even if the receiver does not receive the operation signal transmitted by the safety device.

5. The passenger conveyor according to claim 1,

the safety device detects a situation where an object is stuck between the step and the skirt guard.

6. The passenger conveyor according to claim 1,

the safety device detects a condition in which the step chain is cut.

7. The passenger conveyor according to claim 1,

the security device detects that there is an object stuck in the entrance.

8. The passenger conveyor according to claim 1,

the safety device detects a disengagement of the step from the guide rail.

9. The passenger conveyor according to claim 1,

the safety device detects the pressing of the emergency stop button.

10. The passenger conveyor according to claim 1,

the receiver has a second wireless transmitter, and transmits the stop signal to a management device of the passenger conveyor to the outside using the second wireless transmitter when the operation signal is received from the safety device.