JP2000118937A - Passenger conveyor control device - Google Patents

Abstract

(57) [Problem] To provide a control device for a passenger conveyor provided with a variable speed drive function capable of changing the speed at which a step is driven without removing and attaching an existing control unit. SOLUTION: A first control unit 5 for controlling start and stop operations of a driving device 2 for driving a plurality of steps is provided in a frame 1, and a second control unit 6 for controlling a speed of the driving device 2 is provided. Equipped. Thus, the start and stop operations of the driving device 2 are controlled by the first control unit 5, and the second
The controller 6 controls the speed of the driving device 2 to
Speed. In addition, the second control unit 6 controls the machine room 1
a provided on the back surface of the floor plate 3 covering the upper part of the frame a, the space space can be effectively used, and the second control unit 6 can be easily taken out of the frame 1 by removing the floor plate 3 during maintenance. Therefore, it is not necessary to remove the connection cables 12 and 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a control device for a passenger conveyor such as an escalator.

[0002]

2. Description of the Related Art Generally, the speed at which a step provided on a passenger conveyor is driven is constant, and the driving speed of the step cannot be changed by operating a switch or the like. However, in recent years, falling accidents and the like occur when elderly people get on the passenger conveyor. There has been a growing demand for passenger conveyors having a variable speed drive function. For example, when adding such a variable speed drive function to an existing passenger conveyor, after removing the existing control unit that controls the operation of the drive motor and incorporating a variable speed control circuit,
By reattaching the modified control section and changing the wiring, the existing control section was modified.

[0003]

However, in the above-mentioned prior art, when the existing control unit is removed and a new control unit is mounted, there is a problem that the manufacturing cost of the control unit is high. On the other hand, the existing control unit is expensive. However, there is a problem that the passenger conveyor must be stopped for a long time because the construction period required for the remodeling work is long.

In any case, it is necessary to temporarily remove the existing control unit, so that the wiring must be restarted from the beginning, and from this point, there is a problem that the construction period becomes long.

Further, as described above, the control unit becomes large in size with the new installation or modification of the control unit, so that the installation space cannot be reduced to the existing installation space, and the installation place must be changed. It takes time and effort to newly install or modify the system, or significantly change the wiring, thereby increasing the construction period and costs.

The present invention has been made in view of such a situation in the prior art, and has as its object to change the speed at which a plurality of steps are driven without removing and attaching an existing control unit. It is an object of the present invention to provide a passenger conveyor control device that can perform the control.

[0007]

In order to achieve the above object, the present invention comprises a first control unit for controlling a starting and stopping operation of a driving device for driving a plurality of steps in a frame of a machine room. The passenger conveyor control device,
In addition to the above control unit, a second control unit for controlling the speed of the driving device is provided on a back surface of a floor plate that covers an upper part of the machine room.

According to the present invention having the above-described structure, the start and stop operations of the driving device are controlled by the first control unit, and the second control unit provided separately from the first control unit provides
The speed of the driving device is controlled. This makes it possible to change the driving speed of the step by controlling the second control unit without removing and attaching the existing control unit, that is, the first control unit. In addition, since the second control unit is provided on the back surface of the floor plate that covers the upper part of the machine room, the space can be effectively used, and the second control unit can be easily replaced by removing the floor plate during maintenance. Can be taken out of

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a passenger conveyor control device according to the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram of a passenger conveyor provided with a control device according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a part of the passenger conveyor of FIG. 1 in an enlarged manner.

[0010] The passenger conveyor shown in FIG.
Frame 1 extending diagonally between two floors
And a driving device 2 provided in the frame 1 and including a reduction gear 2a and a motor 2b, and a driving gear 7 rotatably driven by the driving device 2 via a first chain 8.
And a driven gear 9 that is rotationally driven by the driving gear 7 via a second chain 10, and a plurality of steps 11 that are connected to the second chain 10 and move within the frame 1. Machine room 1a formed on the upper end side of frame 1
A driving device 2 and a driving gear 7 are installed in the machine room 1, and the upper part of the machine room 1 a is covered with floor plates 3 and 4.

The control device according to this embodiment includes a motor 2
a first control unit 5 for controlling operations such as rotation and stop of b
And a second control unit 6 for controlling the speed of the motor 2b. As shown in FIG. 2, the first control unit 5 and the second control unit 6 are connected via a first connection cable 12. The second control unit 6 is connected to the motor 2b via the second connection cable 13. The first control unit 5 controls the motor 2
Not only b, but also electric equipment such as a safety switch and a lighting fixture (not shown) mounted in the passenger conveyor is controlled.

The second control unit 6 is installed on the back of the floor panel 3. As an installation method, for example, a hole (not shown) is made on the back surface of the floor plate 3 and the second control unit 6 is fixed with a bolt, or a bracket (not shown) is attached to the back surface of the floor plate 3 by welding, and a bolt (not shown) is attached thereto. Fix with.
First connection cable 12 and second connection cable 13
Are set to predetermined lengths, and are long enough to remove the floor panel 3 from the frame 1 with the second control unit 6 attached, for example, during maintenance and inspection of a passenger conveyor.

In the control device of the present embodiment, the first control unit 5 controls operations such as starting and stopping of the motor 2b of the driving device 2 and a second control unit provided separately from the first control unit 5. The controller 6 controls the speed of the motor 2b.

In the embodiment configured as described above, the motor 2b is controlled in a variable speed state by attaching the second control unit 6 without removing and attaching the first control unit 5, and the step 11 Drive speed can be changed.

Further, in the present embodiment, since the second control unit 6 is provided on the back surface of the floor plate 3 which covers the upper part of the machine room 1a, the space in the frame 1 can be effectively utilized, and the floor plate 3 can be used for maintenance. , The second control unit 6 can be easily taken out of the frame 1. that time,
First connection cable 12 and second connection cable 13
Is long enough to remove the floor panel 3 from the frame 1 with the second control unit 6 attached, so that the connection cables 12 and 13 need not be removed.

In this embodiment, the second control unit 6 is installed on the floor plate 3 which can be easily removed.
The second control unit 6 can also be installed at the second position.

[0017]

Since the present invention is constructed as described above, it is not necessary to remove and attach the existing control unit, that is, the first control unit, and control the second control unit.
The speed at which the steps are driven can be changed. Therefore, there is an effect that a passenger conveyor having a variable speed drive function can be obtained at a relatively low cost and in a short construction period.
In addition, since the second control unit can be removed together with the floorboard,
The maintenance and inspection work will not be hindered.
Also, there is an effect that maintenance and inspection of the control unit itself can be easily performed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a passenger conveyor provided with a control device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an enlarged part of the passenger conveyor of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 1a Machine room 2 Drive device 2a Reduction gear 2b Motor 3, 4 Floor plate 5 1st control part 6 2nd control part 11 Step 12 First connection cable 13 Second connection cable

Continued on the front page (72) Inventor Koji Yamashita 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo F-term in Hitachi Building Systems Co., Ltd. 3F321 AA02 AA09 DC01 DD01

Claims (2)

[Claims] 1. A passenger conveyor control device including a first control unit for controlling start-up and stop operations of a drive device for driving a plurality of steps in a frame of a machine room, wherein the first control unit and A passenger conveyor control device, characterized in that a second control unit for controlling the speed of the drive device is provided separately on a back surface of a floor plate that covers an upper part of the machine room. 2. The length of a first connection cable connecting the second control unit and the first control unit, and a length of a second connection cable connecting the second control unit and the driving device. 2. The passenger conveyor control device according to claim 1, wherein each of the lengths is set to a predetermined length such that the floor plate can be removed and taken out of the frame of the machine room.