JP3164910B2 - Escalator 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 an operating device for an escalator.

[0002]

2. Description of the Related Art Conventional driving operations such as starting and stopping an escalator are performed by inserting a dedicated switch key into one of a plurality of operation control panels provided near a landing on an upper or lower floor.
A driving operation such as ascent, descent, or stop is being performed.

In addition, these operations are provided with a self-holding circuit which keeps the state even after the exclusive key is removed.

On the other hand, at the time of maintenance and inspection work of the escalator, an inspection switch for disconnecting the circuit is provided in each of the self-holding circuits of the respective operating devices, and the self-holding circuit is disconnected by opening the inspection switches to perform continuous operation. It is controlling and ensuring the safety of maintenance workers.

[0005]

As described above, during the maintenance and inspection work, the inspection switch is operated to suppress the continuous operation of the escalator, but the operation other than the above-mentioned operation is performed on some surfaces mounted on the escalator. Since the operation can be performed from any of the operation consoles, when maintenance and inspection work is performed by multiple workers, each of them may be activated if each worker performs a different operation without permission. I'm terrible.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. During maintenance / inspection work, the operation operation function of a plurality of operation operation panels other than a preset operation operation panel is stopped, It is another object of the present invention to suppress a driving operation by a worker other than a specific worker even in the case of a work by a worker, and to prevent such an inconvenient operation.

[0007]

[Means for Solving the Problems] When checking the escalator,
A limit switch that is opened when the board is removed is incorporated into the board, and its contacts are connected in series with the inspection switch circuit. The check switch circuit consists of a check switch, the board limit switch, and a check relay for disconnecting the self-holding circuit. The normally open contact (a contact) of this relay is inserted into the operation circuit of each up / down relay and its self-holding circuit. Keep it.

[0008]

[Function] If the board is removed at the time of inspection, the board / board limit switch is opened, the self-holding circuit disconnection inspection relay is opened, the self-holding circuit is disconnected, and only the specific up or down switch can be operated. Become like

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on an embodiment shown in FIG.

An operation switch circuit C is connected in parallel with each operation operation circuit of operation operation panels A, B,... Provided with operation switches for ascending operation (UP) and descending operation (DN).

The inspection switch circuit C comprises an inspection switch S, a board / board limit switch LS, and a self-holding circuit disconnecting relay R.

The boarding / alighting board limit switch LS has a micro switch buried under the boarding / alighting board. The boarding / alighting board also serves as an entrance / exit lid of a machine room at an escalator entrance / exit, and is removed during inspection. Accordingly, the switch circuit C of the boarding / aboard board limit switch LS incorporated below the boarding board is opened when the boarding / alighting board is opened.

The self-holding circuit disconnecting relay has its operating coil turned on and off by the inspection switch circuit C, and its a contact is used for disconnecting the operation circuit.

When the escalator is operated by the operation circuit having such a structure, the operation operation panel A (or B)
By operating the lift switch (SU) attached to the, the lift relay U of A (or B) is operated, and the operation is started. The operation is continued by closing the contact a of the relay U and performing the self-holding operation.

In the case of the descending operation (DN), similarly to the case of the ascending operation, the operation is performed by operating the descending switch (SD) of each operation panel.

At the time of maintenance and inspection work of the escalator, the inspection switch S is opened, and the self-holding circuit disconnecting relay R is released. As a result, all the contacts a1 to a6 of the relay R are opened. In this state, even if the up switch U and the down switch D of the operation panel B are operated, the respective relays cannot be operated, so that the operation operation from this operation panel cannot be performed.

By operating the up switch U and the down switch D of the operation panel A, the up relay U and the down relay D are respectively operated, but since a self-holding circuit for continuing the operation is not formed, Each operation is continued during operation of each switch, but if the operation is stopped, the escalator stops immediately.

As described above, during inspection, the inspection switch circuit is opened by opening either or both of the inspection switch and the boarding board, thereby opening the self-holding circuit and limiting the operation panel. Driving by anyone other than the driving operator becomes impossible, and danger prevention is ensured.

[0019]

According to the present invention, careless operation is eliminated in the operation of the escalator during maintenance and inspection, and more secure maintenance and inspection can be performed.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram of a driving operation panel according to the present invention.

[Explanation of symbols]

 A, B: Operation control panel circuit C: Inspection switch circuit R: Self-holding circuit disconnection relay SU: Up switch SD: Down switch

Claims (1)

(57) [Claims] 1. An operation control panel having a plurality of surfaces, and
An escalator operating device having a safety check switch for opening a self-holding circuit of a lifting / lowering operation relay, comprising: connecting an inspection switch, a boarding board switch, and an inspection relay in series with the operation control panel. Provide an inspection switch circuit, open the self-holding circuit of all lifting operation operation relays of each operation control panel at the contact of the inspection relay, and open all the lifting relays except the specific lifting relay, An escalator driving device characterized in that part or all of the driving operation functions of the escalator are stopped.