JP2502765B2 - Elevator operating device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an elevator operating device, and more particularly to an elevator operating device suitable for use during an elevator repair work.

[Prior Art] In recent years, in the elevator industry, there is a tendency to refurbish an old aging elevator to a new one with the same function as a new product or to remove an existing elevator and install a new elevator. It has increased. In the case of such work, it is necessary to shorten the construction period and perform the work particularly in a building where the utilization rate of elevators is high and the number of installed elevators is small.

In consideration of this, the applicant of the present application is disclosed in Japanese Patent Laid-Open No. 59-10867.
Japanese Patent Laid-Open No. 1-2004 proposes an elevator operation device that performs this type of work in a short period of time.

According to the elevator operation device according to this proposal, it is possible to perform a major renovation work for an existing elevator or a new construction work for removing an elevator in a short time, and also to significantly reduce the burden on the operator.

[Problems to be solved] In the conventional elevator repair work or new installation work,
In order to shorten the work period, the work in the machine room of the elevator and the work in the hoistway are often performed in parallel.

In this case, in the elevator device according to the proposal, the worker in the machine room and the worker in the hoistway cannot completely grasp the current status of the work of the other party, and the type of work is performed in advance prior to the work. Even if you discuss the order with the above, when you actually start working, you may get used to it and may proceed without checking safety.

For this reason, there is a drawback that it cannot be said that the safety of workers is sufficiently secured because process control is not sufficiently performed between workers who work in parallel at remote locations.

The present invention has been made in view of the current state of the elevator apparatus of this kind as described above, and the purpose thereof is to perform elevator operation capable of completely ensuring the safety of each worker who works in parallel at a distant place. To provide a device.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention is brought into a machine room of an elevator, a temporary power source is supplied from an existing power source facility, and electric power is supplied to an electric motor for driving an elevator. A control panel, a display device provided on the control panel, which operates by releasing the operation blocking switch of the elevator driving electric motor, and which indicates that the elevator driving electric motor is in an excited state, and the control panel and the cable. A relay panel that is connected to and placed in the car, a driving operation box that is connected to the relay panel and that operates the elevator, and that is mounted on the control panel and the relay panel, respectively, and is connected to the machine room and the passenger compartment. It is configured to have an FM carrier type communication device for making a call between the cars.

[Operation] The elevator operation device of the present invention is composed of a control panel provided with a display device, a relay panel, a driving operation box, and a communication device mounted on each of the control panel and the relay panel. Temporary power is supplied to the control panel from the existing power supply facility, and the elevator drive motor is
Power is supplied from the control panel.

The relay board is connected to the control panel in the machine room by a cable and arranged in the car, and the operation box is connected to the relay board.

In this state, the worker in the machine room and the worker in the car
The communication devices are mounted on the control panel and the relay panel, respectively, and talk with each other to check the work status of the other party and work independently.

Further, the control panel is provided with a display device that operates by releasing the operation blocking switch, and the operator in the machine room determines the excited state of the elevator driving electric motor to, for example, a non-operating state and an operating state, It can be confirmed on this display device.

In this way, the operator in the machine room and the operator in the car talk with each other using the communication device, and the worker in the machine room confirms the excited state of the elevator drive motor on the display device while Work safely.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

Here, FIG. 1 is a circuit diagram showing the configuration of the embodiment, and FIG. 2 is a sectional view of the machine room and the hoistway in which the embodiment is installed.

As shown in FIG. 1, the terminals T _{51 to} T ₅₃ of the control panel 5 are
The terminals T _{11 to} T ₁₃ of the phase AC power supply 1 are connected, and the terminals T ₅₄ and T ₅₅ are connected _.
The terminals T ₂₁ and T ₂₂ of the single-phase AC power supply 2 are connected to the.
The terminals T _{5G to} T _5E of the control panel 5 are connected to the terminals T _{31 to} T ₃₃ of the coil 3 for low speed operation, and the terminals T _5D and T _5C are connected to the terminals T ₄₁ and T _{42 of the} electromagnetic brake coil 4. Are connected.

Similarly, the terminals T ₅₅ and T ₅₇ of the control panel 5 are connected to the relay panel 7
Terminals T ₇₆ and T _{75 of} are connected, and terminals T ₅₈ and T ₅₉ and terminals
The terminals T ₆₄ and T ₆₃ and the terminals T ₆₂ and T _{61 of the} safety device 6 are connected to T ₅₀ and T _5A , respectively, and the terminal T _5B of the relay board 7 is connected to the terminal T _5B.
71 is connected.

Further, the terminals T ₇₄ and T _7B and the terminals T ₇₃ and T ₇₂ of the relay board 7 are
They are respectively connected to terminals T ₆₅ , T ₆₆ and terminals T ₆₇ , T ₆₈ of the safety device 6. Similarly, terminals T ₇₇ and T _7C and terminals T ₇₈ and T ₇₉ of the relay board 7 are terminals T ₈₅ and T _{84 of the} operation box 8, respectively.
And terminals T ₈₃ and T ₈₂ , and terminal T _7A is the operation box 8
Connected to terminal T ₈₁ of.

An outlet 23 is connected between the terminals T ₅₄ and T ₅₅ of the control panel 5 via the knife switch 10, and the outlet 23 is connected to the outlet 23.
The FM carrier type communication device 27 is connected.

Further, the control switch 5 is turned on when the operation switch 14 and the knife switch 10 are turned on and the operation switch 14 is turned on, and the indicator light 15 indicates that the elevator driving motor is excited in a non-operating state, An ascending direction detection relay 11 and a descending direction detection relay 12 are provided.

In the control panel 5, a rectifier 13 is connected after the operation switch 14, and contacts 11a ₃ and 1 are provided between the rectifier 13 and the terminal T _5D.
2a ₃ are connected in parallel with each other. Control panel 5
Is provided with an indicator light 31 which lights up when a current is applied to the electromagnetic brake coil 4 and the car is in operation and indicates that the elevator drive motor is excited in an operating state.

In addition, the knife switch 9 is connected to the terminals T _{51 to} T ₅₃ of the control panel 5.
Are connected, and contacts 12a ₁ and 12a ₂ are provided between the knife switch 9 and the terminal T _5G, and contacts are provided between the knife switch 9 and the terminal T _5E.
11a ₃ and 11a ₂ are connected.

The safety device 6 is provided with an ascending limit safety switch 16, a descending limit safety switch 17 and another safety switch 18.

The relay board 7 is provided with an operation switch 19 and outlets 24 to 26, an FM carrier type communication device is connected to the outlet 24, an illumination lamp 29 is connected to the outlet 25, and an electric tool 30 is connected to the outlet 26. Are connected.

The operation box 8 is provided with an operation switch 20, an ascending operation push button switch 21, and a descending operation push button switch 22.

As shown in FIG. 2, in the elevator, the hoistway 50 is provided with the car guide rail 44 and the counterweight guide rail 47, and the machine room 42 is provided at the upper end of the hoistway 50.
A pulley 51 is arranged on 42. A rope 43 is wound around the pulley 51, a car 48 is movably fixed to one end of the rope 43 along a car guide rail 44, and a balance 48 is movable to another end of the rope 43 along a counterweight guard rail 47. A counterweight 46 is fixed.

In the embodiment having the above-mentioned configuration, the control panel 5 is installed in the machine room 42.
In place of the existing control panel 41, the control panel 5 is controlled during the work.

In the machine room 42, the three-phase AC power supply 1 and the single-phase AC power supply 2 are connected and input to the control panel 5, the low speed operation coil 3 and the electromagnetic brake coil 4 are connected as a load, and the machine room 42
An FM carrier type communication device 27 is attached so that it can be used by workers inside.

Further, the relay board 7 is arranged on the car 48 and is connected to the control board 5 by a cable 45 guided into the hoistway 50, and the operation box 8 is connected to the relay board 7. Further, the relay board 7 is connected with an FM carrier type communication device 28, an illuminating lamp 29, and an electric tool 30 which can be used by workers located in the car 48.

Next, the operation of the embodiment in the elevator construction will be described.

A worker in the machine room 42 connects the three-phase AC power supply 1 and the single-phase AC power supply 2 to the control panel 5 by turning on the knife switch 9 and the knife switch 10. In this state, the worker in the machine room 42 and the worker in the car 48 can talk to each other via the FM transfer type communication devices 27 and 28. , The work can proceed safely.

When the operator of the car 48 turns on the operation switches 19 and 20, the indicator light 15 of the control panel 5 is turned on, and the operator in the machine room 42 is excited although the elevator drive motor is in the inoperative state. You can confirm that.

When the operator of the car 48 operates the ascending operation push button switch 21, the ascending direction detection relay 11 of the control panel 5 is energized,
The contacts 11a _{1 to} 11a ₄ are turned on, the car 48 rises at a low speed, and at the same time, the indicator lamp 31 lights up. By turning on the indicator light 31, a worker in the machine room 42 can confirm that the elevator drive motor is excited in an operating state.

Similarly, when the operator of the car 48 operates the descending operation push button switch 22, the descending direction detection relay 12 of the control panel 5 is operated.
The contacts 12a _{1 to} 12a ₄ are turned on, the car 48 descends at a low speed, the indicator light 31 is turned on at the same time, and the worker in the machine room 42 is excited by the elevator drive motor being activated. Can be confirmed.

When moving the car 48, the normally closed contacts 11a ₅ and 12a ₅
Operates as a safety interlock.

In order to stop the car 48 and perform the work, either the operation switch 19 of the relay board 7, the operation switch 20 of the operation control box 8 or the operation switch 14 of the control board 5 may be turned off. By this operation, the ascending direction detection relay 11 and the descending direction detection relay 12 are deenergized, and the car 48 stops.

At the time of this stop work, the workers of the basket 48
You can work with the power tool 30 by illuminating the necessary places with.

In this way, according to the embodiment, the workers in the machine room 42 and the workers in the car 48 communicate with each other by using the FM carrier type communication devices 27 and 28, and perform independent work. It can be processed efficiently and safely.

In addition, the operator in the machine room 42, the indicator light 15 and the indicator light 31, the elevator drive motor is excited in the non-operation state, the car is in a movable state, or the elevator drive It is possible to determine whether or not the car motor is excited in the operating state and the car is in the moving state, and to confirm it, thus ensuring work safety and improving work efficiency.

Furthermore, since the embodiment has a simple structure and does not use expensive parts, the cost of the device can be reduced.

[Effects of the Invention] As described in detail above, according to the present invention, a worker in a machine room and a worker on a car communicate with each other through a communication device at the time of elevator repair work or new removal work. In the meantime, the worker in the machine room can process the independent work safely and efficiently by discriminating and checking whether or not the car is in the moving state by the display device.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a configuration of an embodiment of the present invention, and FIG. 2 is a sectional view of a machine room and a hoistway in which the present invention is installed. 1 ... 3-phase AC power supply, 2 ... Single-phase AC power supply, 3 ... Coil for low-speed operation, 4 ... Electromagnetic brake coil, 5 ... Control panel, 6 ... Safety device, 7 ... Relay panel, 8 ... … Operation box, 9,10… Knife switch, 11 …… Upward direction detection relay, 12… Downward direction detection relay, 13 …… Rectifier, 14,19,
20 …… Operation switch, 21 …… Push-up switch for ascending operation,
22 …… push-down switch for lowering operation, 23 to 26 …… outlet, 27, 28 …… communication device, 29 …… lighting, 30 …… electric tool, 31 …… indicator light.

Claims (1)

(57) [Claims] 1. A control panel that is brought into an elevator machine room, is supplied with temporary power from an existing power supply facility, and supplies electric power to an electric motor for driving an elevator, and the control panel is provided on the control panel. The display device that operates when the operation prevention switch is released to display that the elevator driving motor is in an excited state, the relay panel that is connected to the control panel by a cable, and is placed in the car, and the relay panel. And an operation box for performing an operation operation of the elevator, and an FM carrier-type communication device mounted on the control panel and the relay panel, respectively, for communicating between the machine room and the car. An elevator operation device characterized by the above.