JP2547283B2 - Man conveyor operating device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a man conveyor operating device.

[0002]

2. Description of the Related Art FIGS. 8 and 9 show Japanese Patent Publication No. 61-418.
It is a principal part side view which shows the brake release apparatus of the conventional passenger conveyor shown by 35th publication. In the figure, 1 is a main frame of a passenger conveyor, 2 is a tread plate, 3 is a tread chain provided on the main frame 1, 4 is a drive unit that is arranged in the main frame 1 and engaged with the tread chain 3, and 5 is a drive A speed reducer that constitutes the machine 4, 6 is an electric motor that also constitutes the drive machine 4, and 7 is a rotation of the electric motor 6 that is reduced by the speed reducer 5
V-belt transmitted to the main frame 1, a clutch device 8 provided adjacent to the drive unit 4 on the main frame 1, and one end of the 9 is connected to the clutch device 8 and the other end of the clutch device is located at the upper floor of the man conveyor. A flexible shaft 10, a handle to be engaged with the other end of the flexible shaft 9 at the time of maintenance and inspection, 11 a V belt for transmitting the rotational force from the clutch 8 side to the electric motor 6, and 12 near the other end of the flexible shaft 9. , A normally open contact 12a of the foot switch 12, 13 a normally open contact of a relay (not shown) that operates when the electric motor 6 is energized, and 14 a drive unit 4 Is a brake that is provided in the vehicle and brakes the rotation of the driving machine 4 by a spring force and opens when the electromagnet 15 is energized.

The conventional passenger conveyor is constructed as described above, and in order to perform normal operation, first, the electric motor 6 is energized to close the contact 13 and (+)-13-15 shown in FIG.
The (-) circuit is formed. As a result, the electromagnet 15 is urged to open the brake 14, and the step chain 3 is driven via the drive unit 4. Then, the step 2 moves in a predetermined direction. Since the clutch device 8 does not transmit the rotational force during the operation of the passenger conveyor, the bending shaft 9 does not rotate.

Next, in order to stop the passenger conveyor, when the electric motor 6 is deenergized, the contact 13 is released and the electromagnet 15 is released.
Is deenergized, the brake 14 is braked by the spring force, and the passenger conveyor is stopped.

Next, an inspection method at the time of installation and maintenance of this conveyor will be described. First, the landing floor plate (not shown) on the upper floor side of the passenger conveyor in the stopped state is removed, and then the worker is positioned as shown by the chain line in FIG. 8 and presses the foot-operated switch 12. As a result, the switch 12a shown in FIG. 9 is closed to form a (+)-12a-15-(-) circuit, so that the electromagnet 15 is energized and the brake 14 is released. Then, with the brake 14 released, another operator measures the degree of wear of the brake pad (not shown) or performs replacement work. It is also possible to confirm the braking operation of the brake 14 by repeatedly opening and closing the switch 12. In addition, with the switch 12 pressed, the handle 10
Rotating force causes the rotating force to bend and the shaft 9 → clutch device 8 → V
Since the belt 11 → the electric motor 6 → the V belt 7 → the speed reducer 5 is transmitted, it is possible to check the rotation state of the brake drum 24d of the brake 14.

[0006]

According to the conventional brake release device for a man conveyor as described above, one operator operates the foot-operated switch 12 provided at the landing of the man conveyor to operate the brake 14. It was released and another worker was inspecting the brake 14. In other words, two workers at distant places jointly carried out inspection work while giving a signal. By the way, in a man lifter having a high lift (for example, a lift of 15 to 40 m) installed in a subway station or the like in recent years, a plurality of driving machines 4 are arranged in the main frame 1 in order to obtain a required driving force. There is. In this high-lift man conveyor, the distance between the operator who operates the foot-operated switch 12 at the landing and the operator who inspects the brakes 14 may be as much as 30 to 80 m. There was a problem that it was difficult to contact them and work efficiency was poor.

The present invention has been made to solve the above problems, and in a case where a plurality of driving machines are arranged in a dispersed manner in a main frame, the inspection work of the brakes provided on the driving machines can be performed efficiently. It is an object of the present invention to provide a man conveyor operating device that can be implemented well.

[0008]

In the man conveyor operating device according to claim 1 of the present invention, an operation for driving a plurality of driving machines for driving steps arranged dispersedly in the main frame of the man conveyor. A circuit, a braking circuit for activating a braking brake provided in a driving machine, and a first switch for releasing all the brakes at the same time, which is operated at the time of installation and maintenance of the man conveyor, and is arranged near each of the brakes. The release circuit is composed of a second switch for releasing the brake independently and a relay for releasing the brake by operating the first and second switches.

Further, in claim 2, a wireless controller for operating the first and second switches by a radio signal is further provided.

[0010]

In the man-conveyor operating device constructed as described above, all the brakes are simultaneously released when the first switch is operated, and the brakes are independently released when the second switch is operated.

Further, the first and second switches are operated by a radio signal from the wireless controller.

[0012]

【Example】

Example 1. 1 to 5 show an embodiment of the present invention, in which 1 to 3 show the same parts as the conventional device or the corresponding parts. In FIG. 3, 20A, 20B, and 20C are three driving machines distributed in the main frame 1 of the high-lift man conveyor, and in FIG. 4, 21 is a speed reducer of the driving machine 20, 22
Is also an electric motor of the driving machine 20, 23 is a V-belt for transmitting the rotation of the electric motor 22 to the speed reducer 21, 24 is provided in the driving machine 20, and brakes the rotation of the driving machine 20 by a spring force, and an electromagnet 25 is attached. A brake that releases when energized.

In FIG. 2, 27 is a relay for ascending operation, 2
7a, 27b, 27c and 27d are normally open contacts of the relay 27, 27e is a normally closed contact of the relay 27, 28 is a descending operation relay, 28a, 28b, 28c and 28d are relays 28.
Normally open contact, 28e is a normally closed contact of the relay 28, 29 is a switch for ascending operation, 30 is a switch for descending operation, 31 is a stop switch, and in FIG. 1, 32 is a foot-operated type arranged near the landing on the upper floor side. Of the first switch, 33 is an operation relay of the first switch 32, 33a, 33b and 33c are normally open contacts of the operation relay 33, and 34a is a foot-operated type arranged near the brake 24a provided in the drive machine 20A. Second switch, 35 is an operation relay of the second switch 34a, 35a is a normally-open contact of the operation relay 35, and 34b is a foot-operated second switch arranged in the vicinity of the brake 24b provided in the driving machine 20B. Switch, 36 is the second switch 3
4b is an operation relay, 36b is a normally open contact of the operation relay 36, 34c is a brake 24c provided in the driving machine 20C.
, A foot-operated second switch disposed in the vicinity of, a reference numeral 37 is an operation relay of the second switch 34c, 37c is a normally open contact of the operation relay 37, 38a is an electromagnet of the brake 24a,
38b is the electromagnet of the brake 24b, 38c is the brake 2
4c is an electromagnet, and 39 is a handle equivalent to a conventional device for moving the tread 2 arranged near the hall on the upper floor side.

Next, the operation of the first embodiment will be described. First, when the raising operation switch 29 (FIG. 2) is pressed,
A (+)-31-29-28e-27-(-) circuit is formed to energize the ascending operation relay 27, and the contact 27
a, 27b, 27c and 27d are closed. As a result, (+)-27a-38a-(-) and (+) in FIG.
-27b-38b-(-) and (+)-27c-38
The c-(-) circuit is formed, and the driving machines 20A, 20
Brakes 24a and 24 provided on B and 20C, respectively
b and 24c are released. Further, (+)-in FIG.
31-27d-28e-27-(-) circuit is formed and the ascending operation relay 27 is self-held, and the electric motor 22
a, 22b, 22c are operated. As a result, the passenger conveyor is operated in the ascending direction.

Next, when the stop switch 31 is pressed,
The ascending operation relay 27 is de-energized so that the electric motors 22a, 22
The power supply to b and 22c is cut off, and at the same time, the brake 24a and
24b and 24c operate and the passenger conveyor stops. The same applies to the case of the descending operation.

Next, an inspection method during installation and maintenance of this passenger conveyor will be described. For example, when inspecting the brake 24c of the driving machine 20C arranged farthest from the landing on the upper floor side, after the operator opens the stop switch 31 to stop the man conveyor, the worker is placed near the driving machine 20C. The second switch 34c (FIG. 1) provided is pressed. As a result, a (+)-34c-37-(-) circuit is formed, the actuation relay 37 is energized, and the contact 37c is opened. Then, a circuit of (+)-37c-38c-(-) is formed and the brake 24c of the driving machine 20C is released. Then, in this state, the operator can inspect the brake 24c. The brakes 24a and 24b of the other drive units 20A and 20B can be inspected in the same manner.

Next, when inspecting the moving state of the tread 2,
First, the operator presses the first switch 32. As a result, a circuit of (+)-32-33-(-) is formed,
The actuation relay 33 is energized and contacts 33a, 33b, 33
c is closed. Therefore, (+)-33a-38a-
(-), (+)-33b-38b-(-) and (+)
A -33c-38c-(-) circuit is formed and the brakes 24a, 24b, 24c are released. When the handle 39 is rotated in this state, the tread chain 3 is driven and the tread 2
Can be inspected as it moves.

Therefore, in the man conveyor operating device according to the first embodiment, the brakes 24 of the driving machine 20 arranged in a distributed manner in the main frame 1 are provided with the second switches 34 arranged in the vicinity of the brakes 24. Can be used to release each independently. Therefore, one operator can operate the second switch 34 to open the brake 24, and perform inspection work such as wear measurement and replacement of the brake pad. Therefore, unlike the conventional apparatus, it is not necessary to perform the inspection work between the workers while giving a signal, and the work efficiency is improved. Further, since the first switch 32 is provided and all the brakes 24 of the plurality of driving machines 20 can be released at the same time, the brake drum 24 can be released similarly to the conventional device.
It is also possible to check the rotation status of d.

In the first embodiment, the circuit configuration is shown by the relay circuit, but the present invention is not limited to this and may be configured by program control using a microcomputer.

Example 2. Example 2 is shown in FIGS. 6 and 7. In the figure, reference numeral 40 is a wireless controller, and 40a is an operation unit incorporated in the wireless controller 40, for releasing the first push button switch 41 for releasing all the brakes of a plurality of drive machines simultaneously and the brakes individually. Second push button switches 42a, 42
b, 42c. Reference numeral 40b is a transmitting device which converts open / close signals of the first push button switch 41 and the second push button switches 42a, 42b, 42c into wireless signals and transmits them.

Reference numeral 43 is an operation control device, and 43a is a transmission device 4.
The brake release circuit 43b receives the radio signal from 0b.
It is a receiving device that issues a command based on a wireless signal. The brake release circuit 43b is the same as that of the first embodiment, but the first and second switches (both not shown) in the circuit are arranged in the operation control device 43 and are connected to the receiving device 43a. It is configured to open and close based on a command. The driving circuit 43c and the braking circuit 43d are the same as those in the first embodiment.

In this embodiment, an operator who inspects the brake is operated by the operation unit 40 of the wireless controller 40.
When any one of the first push button switch 41 or the second push button switches 42a, 42b, 42c provided in a is selected and pressed, the command is the operation unit 40a → the transmitting device 40b → the receiving device 43a → the brake. Release circuit 43b
The brake is released by operating the first switch or the second switch of the brake release circuit 43b.

Therefore, according to this embodiment, since the operator who inspects the brake can release the brake while carrying the wireless controller 40, the degree of freedom of the working posture is increased and the working efficiency is further improved than that of the first embodiment. improves.

[0024]

As described above, the driving apparatus for a man conveyor according to the present invention is a driving circuit for driving a plurality of driving machines for driving steps arranged in a main frame of the man conveyor, and a driving machine. A braking circuit for activating the braking brake provided in, a first switch for releasing all the brakes simultaneously operated during installation and maintenance, and a brake switch for releasing the brakes independently disposed in the vicinity of each of the brakes. It has a brake release circuit consisting of a second switch and a relay that is energized by the operation of the first and second switches to release the brake, and when the first switch is operated, all the brakes are released at the same time. By operating the second switch, the brake is released independently, so there is the effect that the inspection work of the brakes provided on multiple drive units can be carried out efficiently. .

Further, according to the second aspect, the first switch and the second switch are operated by the radio signal from the wireless controller, so that there is an effect that the efficiency of the inspection work of the brake is further improved.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a brake and brake release circuit showing a first embodiment of the present invention.

FIG. 2 is a circuit diagram of an operation circuit showing a first embodiment of the present invention.

FIG. 3 is a side view of the passenger conveyor showing the first embodiment of the present invention.

FIG. 4 is an enlarged view of a portion A of FIG. 3 showing the first embodiment of the present invention.

FIG. 5 is a view taken in the direction of arrow B in FIG. 4 showing the first embodiment of the present invention.

FIG. 6 is a block diagram showing a second embodiment of the present invention.

FIG. 7 is a perspective view of a wireless controller showing Embodiment 2 of the present invention.

FIG. 8 is a side view of a conventional passenger conveyor.

FIG. 9 is a brake release circuit diagram of a conventional passenger conveyor.

[Explanation of symbols]

 1 Main Frame 2 Steps 4, 20 Driver 14, 24 Brake 32 First Switch 34 Second Switch 35, 36, 37 Relay 40 Wireless Controller

Claims (2)

(57) [Claims] 1. A driving circuit for driving a plurality of drive devices for driving steps arranged in a distributed manner in a main frame of a man conveyor, and a braking brake provided in the drive device is released and disconnected when energized. A braking circuit that is activated when power is turned on, a first switch that is operated during installation and maintenance of the passenger conveyor to release all the brakes at the same time, and a brake switch that is arranged near each of the brakes to release the brakes independently. Of a second conveyor and a release circuit comprising a relay for releasing the brake by closing the braking circuit by operating the first and second switches. Driving device. 2. The operating device for a man conveyor according to claim 1, wherein the first and second switches are operated by a radio signal from a wireless controller.