JP2013006648A - Control device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device of an elevator capable of preventing a general user from accidentally getting on a car when a door switch is turned on.SOLUTION: This control device of an elevator comprises: a buzzer device 13 and a door driving device 12 provided at a car 4 of the elevator; door switches 14 to 16 to be operated by a maintenance person for the elevator; and a control panel 8. When the car 4 is disposed in a door zone while the door switches 14 to 16 are turned on, the control panel 8 controls the door driving device 12 upon the establishment of a predetermined open condition to open the door of the elevator. Further, when any of the door switches 14 to 16 is turned on from an interruption state while the car 4 is disposed in the door zone and all of the door switches 14 to 16 are turned on, the control panel 8 causes an alarm sound to be output from a buzzer device 13, and causes the door of the elevated to be opened.

Description

  The present invention relates to an elevator control device.

FIG. 3 is a block diagram showing a main part of a conventional elevator control device.
In FIG. 3, 11 is a door zone detection device for detecting that an elevator car is arranged in the door zone, and 14 to 16 are door switches for operation by maintenance personnel who maintain the elevator.

  The elevator door does not open or close unless all the door switches 14 to 16 are turned on. During normal operation of the elevator, all the door switches 14 to 16 are turned on. For this reason, if the door zone detector 11 detects that the car is located in the door zone, the elevator control panel 8a controls the door drive device 12 by establishing a predetermined opening condition. Open the elevator door.

  When performing maintenance work on the car, the elevator maintenance staff shuts off the door switch 15 installed on the car. If any one of the door switches 14 to 16 is shut off, the control panel 8a does not open or close the door. Thereafter, when the maintenance work is completed, the maintenance worker turns on the door switch 15 when getting off the car. When the blocked door switch 15 is turned on and all the door switches 14 to 16 are turned on, the control panel 8a controls the door driving device 12 if the car is placed in the door zone at that time, Open the elevator door.

  In addition, as a prior art regarding the door of an elevator, there has been proposed one that issues an alarm and notifies a user when an elevator user approaches a landing door.

Japanese Patent Laid-Open No. 2003-34162

  In a conventional elevator, if the car is placed in the door zone when the door switch is turned on, the elevator door is opened regardless of the car position. For this reason, if there is a general user at the hall, it may be mistaken for a normal service and the user may get into the car. During elevator maintenance, a step may be formed between the car floor and the landing floor. In such a case, the user may not be aware of the step.

  In addition, the thing of the said patent document 1 cannot solve such a problem.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to reliably prevent an ordinary user from getting into the car by mistake when the door switch is turned on. It is to provide a control device.

  The elevator control device according to the present invention includes an alarm device provided in an elevator car, a door drive device provided in the car, a door switch for operation by an elevator maintenance worker, and a door switch. Control means for controlling the door driving device based on a predetermined opening condition and opening the door of the elevator when the car is arranged in the door zone, and the control means is arranged in the door zone When the door switch is sometimes turned on from the shut-off state, a predetermined notification is issued from the notification device, and the elevator door is opened.

  With the elevator control device according to the present invention, it is possible to reliably prevent a general user from getting into the car by mistake when the door switch is turned on.

It is a figure which shows the whole structure of the elevator provided with the control apparatus in Embodiment 1 of this invention. It is a block diagram which shows the principal part of the control apparatus of the elevator in Embodiment 1 of this invention. It is a block diagram which shows the principal part of the control apparatus of the conventional elevator.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is a diagram showing an overall configuration of an elevator provided with a control device according to Embodiment 1 of the present invention, and FIG. 2 is a configuration diagram showing a main part of the elevator control device according to Embodiment 1 of the present invention.

  1 and 2, 1 is an elevator hoistway, 2 is an elevator machine room, and 3 is an elevator hall provided on each floor of the building. The machine room 2 is provided above the hoistway 1. 4 is an elevator car and 5 is a counterweight. The car 4 and the counterweight 5 are suspended in a fishing bottle type in the hoistway 1 by the main rope 6.

  7 is a hoisting machine composed of an elevator driving device. The hoisting machine 7 is installed in the machine room 2. A part of the main rope 6 is wound around a hoisting machine 7 (drive sheave). The car 4 moves up and down in the hoistway 1 in the direction corresponding to the moving direction of the main rope 6 by the main rope 6 moving in the longitudinal direction in conjunction with the rotation of the driving sheave of the hoisting machine 7. The counterweight 5 moves up and down in the hoistway 1 in the opposite direction to the car 4.

  Reference numeral 8 denotes a control panel (control means) for controlling the operation of the elevator including the traveling of the car 4. The control panel 8 is installed in the machine room 2.

  9 is a door zone detection plate provided on the fixed body of the hoistway 1, and 10 is a plate detector provided on the car 4. The door zone detection device 11 includes a door zone detection plate 9 and a plate detector 10. The door zone detection device 11 is for detecting that the car 4 is arranged in the door zone.

  The car 4 is provided with a car door (not shown) for opening and closing the car doorway, and each hall 3 is provided with a landing door (not shown) for opening and closing the hall doorway. The landing 3 is not provided with a device such as an electric motor for driving the landing door. A door driving device 12 for opening and closing the car door (and the landing door) is provided in the car 4. The car door and each landing door are provided with an interlocking device (not shown) for interlocking the landing door with the opening / closing operation of the car door. The door zone is a range where the landing door opens and closes in conjunction with the car door. In other words, when the car 4 is arranged in the door zone of the hall 3, when the car door is opened and closed by the door driving device 12, the hall door installed in the hall 3 is also opened and closed in conjunction with the car door.

  If the car 4 is located in the door zone, the door zone detection device 11 outputs a signal to that effect to the control panel 8. Specifically, when the presence of the door zone detection plate 9 is detected by the plate detector 10, a detection signal is transmitted from the plate detector 10 to the control panel 8.

  13 is a buzzer device (notification device) provided in the car 4. When a predetermined condition is satisfied, the control panel 8 sounds the buzzer device 13 to generate a buzzer sound (warning sound).

  Reference numerals 14 to 16 denote door switches that can be switched between an on (ON) state and a cutoff (OFF) state. The door switches 14 to 16 are for regulating and controlling the operation of the door driving device 12. The door switches 14 to 16 output an ON signal to the control panel 8 when in the on state. The control panel 8 detects the state of each of the door switches 14 to 16 based on the input signal. When all of the door switches 14 to 16 are turned on, the control panel 8 controls the door driving device 12 and establishes the elevator by setting a predetermined opening condition if the car 4 is arranged in the door zone. Open the doors (the car door and the landing door). For example, when the door opening button (not shown) in the car 4 is pressed, the opening condition is satisfied. The control panel 8 determines whether or not the car 4 is arranged in the door zone based on the presence or absence of a detection signal input from the plate detector 10. When any one of the door switches 14 to 16 is not turned on (blocked), the control panel 8 regulates the operation of the door driving device 12 even if the car 4 is arranged in the door zone, and the elevator Do not open the door.

  The door switches 14 to 16 are for operation by maintenance personnel who perform elevator maintenance. For this reason, the door switches 14 to 16 are installed in a place where a general elevator user cannot operate.

The door switch 14 is used by a maintenance person to operate the car 4. The door switch 14 is provided, for example, on a maintenance operation panel 17 installed in the car 4. The maintenance operation panel 17 is provided with a lid that can be opened and closed with a key owned by a maintenance person, for example. The door switch 14 and other maintenance switches can be operated by opening the lid. That is, during the normal operation of the elevator, the lid is locked so that a general user cannot operate the maintenance operation panel 17 (door switch 14 or the like).
The car 4 is also provided with a car operation panel (not shown) for operation by a general user.

The door switch 15 is for a maintenance person to operate on the car 4. The door switch 15 is installed on the car 4.
The door switch 16 is for a maintenance person to operate around the control panel 8 (in the present embodiment, in the machine room 2). The door switch 16 is provided in the control panel 8, for example.

  In the elevator having the above configuration, all the door switches 14 to 16 are turned on during normal operation. For this reason, in the control panel 8, if the door zone detection device 11 detects that the car 4 is located in the door zone, the door driving device 12 is controlled by the predetermined opening condition, and the car is controlled. Open and close the door (and the landing door of its landing 3).

  At the time of maintenance of the elevator, the maintenance staff shuts off the door switch 15 when working on the car 4, for example. Further, the door switch 14 is shut off when working in the car 4, and the door switch 16 is shut off when working in the machine room 2. If any one of the door switches 14 to 16 is shut off, the control panel 8 does not open or close the door even if the door zone detector 11 detects that the car 4 is located in the door zone. For this reason, for example, even if a maintenance person raises / lowers the car 4 on the car 4 and the car 4 moves to the door zone, the door of the elevator does not open.

  The maintenance staff of the elevator completes the maintenance work and, for example, turns on the door switch 15 when getting off the car 4. For this reason, if the door switches 14 and 16 are turned on in advance, all the door switches 14 to 16 are turned on by the operation of the maintenance staff. When the car 4 is placed in the door zone, the control panel 8 switches any one door switch (in the above example, the door switch 15) from the shut-off state to the on state, and all the door switches 14 to 16 are in the on state. Then, a warning sound is output from the buzzer device 13 and the car door is opened.

  Since the car 4 is disposed in the door zone, the landing door of the landing 3 is also opened in conjunction with the car door. Even if there is a general user at the hall 3 when the car door and the hall door are opened, the warning sound is heard from the buzzer device 13 so that the user does not get into the car 4 by mistake. When the door switch 15 is turned on from the shut-off state, the control panel 8 stops the warning sound from the buzzer device 13 after a predetermined time has elapsed. As a result, the elevator returns to normal operation.

According to Embodiment 1 of the present invention, it is possible to reliably prevent a general user from getting into the car 4 by mistake when a maintenance engineer turns on the door switch.
In this embodiment, the buzzer device 13 is provided as a notification device for outputting a warning sound. However, if the same function as the buzzer device 13 can be provided, another notification device is provided in the car 4. It does not matter.

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Machine room 3 Platform 4 Car 5 Counterweight 6 Main rope 7 Hoisting machine 8, 8a Control panel 9 Door zone detection plate 10 Plate detector 11 Door zone detection device 12 Door drive device 13 Buzzer device 14, 15, 16 Door switch 17 Maintenance operation panel

Claims (4)

A notification device provided in the elevator car;
A door driving device provided in the car;
A door switch for operation by elevator maintenance personnel;
When the car is placed in the door zone when the door switch is turned on, the control means for controlling the door driving device based on a predetermined opening condition and opening the door of the elevator,
With
The control device is an elevator control device that causes the notification device to perform a predetermined notification to open an elevator door when the door switch is turned on from a shut-off state when the car is disposed in the door zone.   2. The elevator control according to claim 1, wherein, when the door switch is turned on from a shut-off state when the car is disposed in a door zone, the control means stops the notification from the notification device after a predetermined time has elapsed. apparatus. A plurality of the door switches are provided;
When the car is placed in the door zone when all the door switches are turned on, the control means controls the door driving device based on a predetermined opening condition, opens the door of the elevator, and When any one of the door switches is turned on from the shut-off state and all the door switches are turned on when the car is arranged in the door zone, the notification device performs a predetermined notification, and the elevator door is opened. The elevator control device according to claim 1 or 2, wherein the elevator control device is opened. The door switch is
A first door switch for maintenance personnel to operate on the car;
A second door switch for maintenance personnel to operate in the car;
A third door switch for maintenance personnel to operate in the machine room;
The elevator control device according to claim 3, comprising:

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