KR20060040602A - Platform door unlocking device of elevator - Google Patents

Abstract

A platform door unlocking device of an elevator, wherein the locking device of a platform door is operated by the driving of an actuator for unlocking. The actuator is controlled by an unlocking control part. The unlocking control part receives an unlocking instruction signal to make the actuator perform the unlocking operation.

Description

Platform door unlocking device of elevator {PLATFORM DOOR UNLOCKING DEVICE OF ELEVATOR}

The present invention relates to a landing door unlocking device of an elevator for unlocking a locking device of a door of a landing.

For example, Japanese Patent Laid-Open No. 3-152085 discloses a conventional emergency unlocking device for unlocking the door locking device by manual operation by inserting a lock release mechanism from the landing side. It is.

However, in such a conventional emergency unlocking device, it is necessary to provide a keyhole for inserting the unlocking operation tool between the landing door or the landing door and the three-sided frame, so that designability is improved. Deteriorates.

Moreover, since it was the structure which operates a locking device by manual operation, it was difficult to relate the state of the locking device to the operation control of a car.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a lift door lock releasing device for an elevator that can prevent deterioration of the design of the landing point and enable operation control according to the state of the visibility device. do.

Elevator door unlocking device according to the present invention is for unlocking the door lock device of the landing door, the actuator for unlocking by operating the locking device, and receives the unlock command signal to unlock the actuator operation The lock release control part which makes it perform is provided.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the boarding point of the elevator apparatus by an example of embodiment of this invention,

2 is a cross-sectional view taken along the line II-II of FIG. 1;

3 is a rear view showing a main part of the landing of FIG. 1;

4 is a configuration diagram showing the overall configuration of the elevator apparatus of FIG.

5 is a block diagram showing the configuration of each floor unlocking device of FIG. 4;

FIG. 6 is a flowchart showing an operation during maintenance work of the unlocking controller of FIG. 5.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described with reference to drawings.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the boarding point of the elevator apparatus by an example of embodiment of this invention. In the figure, the boarding point entrance and exit 21 is provided in the boarding point. The triangular frame 22 is fixed to both sides and the upper part of the boarding point entrance and exit 21. The three-sided frame 22 has a pair of vertical frames 23a and 23b and a membrane plate 24.

The landing doorway 21 is opened and closed by a pair of doors 25. The boarding point button device 26 is provided in the boarding wall on the side of the boarding point entrance and exit 21.

2 is a cross-sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a rear view showing the main part of the boarding point of FIG. 3 is a view seen along the arrow III direction of FIG. A hanger case 27 is fixed to the upper part of the landing entrance 21. The door rail 28 is fixed to the hanger case 27. The door rail 28 is parallel and horizontal in the front width direction of the landing entrance 21.

The hanger plate 30 is fixed to the upper part of the door 25 of each boarding point via the bracket 29. As shown in FIG. Each hanger plate 30 is provided with a pair of hanger rollers 31 for rolling on the door rail 28.

At the upper part of the door 25 of the boarding point, the correction device (latch mechanism) 32 which regulates the opening of the door 25 of the boarding point is provided. The locking device 32 is an engaging member of the latch 33 fixed to the door rail 28, the latch plate 34 provided on the hanger plate 30 so as to be swingable, and the door (not shown) of the car. (Not shown) has a pair of engagement rollers 35 and 36 and a return spring 37 to be engaged.

The latch plate 34 is normally engaged with the latch 33 as shown in FIG. 3, whereby the opening operation of the door 25 of the landing is restricted. In addition, when the door of the car is opened in a state in which the engaging member of the door of the car is engaged with the engagement rollers 35 and 36, the latch plate 34 swings in the clockwise direction of the drawing, Engagement with the latch 33 is released. As a result, the door 25 of the landing is opened together with the door of the car.

Further, when the door closing operation is completed after the door is opened, the engagement of the engaging members 35 and 36 is released, and the latch plate 34 is moved counterclockwise in the drawing by the restoring force of the return spring 37. It swings, and the latch plate 34 meshes with the latch 33 again.

The bracket 29 is equipped with an electromagnetic solenoid 14 as an actuator that presses and swings the latch plate 34.

Legs 38 of a plurality of doors are attached to the lower end of the door 25 of the landing. A threshold 39 is provided below the landing doorway 21. The threshold 39 is provided with a threshold groove 39a into which the leg 38 of the door is inserted.

4 is a configuration diagram showing the overall configuration of the elevator apparatus of FIG. In the figure, a drive device 2 is provided above the hoistway 1. The drive device 2 has a drive body 3 including a motor and a brake, and a drive sheave 4 that is rotated by the motor. In the vicinity of the drive sheave 4, the deflector sheave 5 which is free to rotate is provided.

A plurality of main ropes 6 are wound around the drive sheave 4 and the deflector sheave 5. The car 7 is connected to one end of the main rope 6. The counterweight 8 is connected to the other end of the main rope 6. The cage | basket | car 7 and the counterweight 8 are suspended in the hoistway 1 by the main rope 6, and are moved up and down in the hoistway 1 by the drive apparatus 2. As shown in FIG.

The drive body 3 is controlled by an operation control device (control panel) 9. The boarding point entrance and exit 21 of each floor is provided with the opening / closing sensor (door switch) 10 which detects the opening / closing state of the door 25 of the boarding point. All the opening / closing sensors 10 are connected to the driving control apparatus 9. That is, the detection signal from the open / close sensor 10 is transmitted to the driving control device 9.

Each floor unlocking device 11 for unlocking the locking device 32 is provided in the platform of each floor.

On the cage | basket | car 7, the switch 12 on the cage | basket | car for raising and lowering the cage | basket | car 7 at the time of maintenance work is provided. Moreover, the non-latch type switch 13 for raising and lowering the cage | basket | car 7 at the time of maintenance work is provided in the pit 1a of the hoistway 1.

5 is a block diagram showing the configuration of each layer unlocking device 11 of FIG. Each floor unlocking device 11 has an electromagnetic solenoid 14, a lock release control unit 15, a boarding point operating part 16, and a hoistway operating part 17. The electromagnetic solenoid 14 mechanically operates the locking device to unlock it. The lock release controller 15 receives the lock release command signal to cause the electronic solenoid 14 to perform a lock release operation.

The boarding point operation part 16 is accommodated in the boarding point button device 26, for example, and can be operated by opening the cover of the boarding point button device 26. FIG. By operating the boarding point operation part 16, the lock release command signal can be input to the lock release control part 15. FIG.

Moreover, a card reader may be provided in the boarding point operation part 16, and operation of the boarding point operation part 16 may be performed using the exclusive card key, and security can be improved.

The hoistway operation part 17 is arrange | positioned in the vicinity of the door 25 of the hoistway in the hoistway 1, for example, is operated from the cage | basket | car 7 top. The lock release command signal can also be input to the lock release control unit 15 by operating the hoistway operation unit 17.

The unlock control unit 15 is configured by a microcomputer including an input / output unit, a CPU (computation processing unit), and a storage unit (ROM and RAM, etc.). Moreover, the lock release control part 15 is connected to the operation control apparatus 9. When the driving mode of the driving control apparatus 9 is the normal driving mode, the unlocking control unit 15 is configured to invalidate the unlocking command signal.

The lock release control unit 15 causes the electronic solenoid 14 to perform a lock release operation only within a preset time after receiving the lock release command signal.

Moreover, the lock release control part 15 makes the lock release command signal from the boarding point operation part 16 valid according to the position of the cage | basket | car 7. That is, the lock release control part 15 stops the cage | basket | car 7 at the position which can board the lock release command signal from the boarding point operation part 16 other than the lowest floor platform on the cage | basket | car 7 from a corresponding platform. Valid only when doing so. The lock release control unit 15 has a car 7 at a position where the lock release command signal from the landing operating unit 16 of the lowest landing can be entered into the pit 1a of the landing 1 from the lowest landing. Valid only when stopped. The positional information of the car 7 can be obtained from the driving control device 9.

In addition, the driving control device 9 receives a lock release command signal from the hoistway operation unit 17 from the hoistway control unit 17 until the end switch (not shown) installed in the hoistway is operated. The movement of the car 7 is regulated. The end switch can be provided in the boarding point button device 26 together with the boarding point operation part 16, for example. In addition, the boarding point operating part 16 may serve as an end switch.

Moreover, the external battery device 18 which can be transported is connectable to the unlocking control part 15. The external battery device 18 is selectively connected to either one of all the unlocking control units 15. By connecting the external battery device 18 to the unlocking control unit 15, it is possible to supply electric power for driving the electronic solenoid 14 to each floor unlocking device 11 even in the case of power failure.

In addition, the landing door unlocking device of this embodiment includes each floor unlocking device 11 and an external battery device 18.

Next, the operation will be described. FIG. 6 is a flowchart showing an operation during maintenance work of the unlocking control unit 15 of FIG. 5. In order for the maintenance worker to move on the car 7 or into the pit 1a, first, the operation mode of the operation controller 9 is repaired from the normal operation mode (automatic operation mode) by a changeover switch (not shown). Switch to mode.

When the driving mode is switched to the maintenance driving mode, it is checked whether or not the lock release command signal is input from the landing operating unit 16 (step S1). The maintenance staff operates the boarding point operation part 16 of the boarding point other than the lowest floor when moving to the cage | basket | car 7, and operates the boarding point operating part 16 of the lowest floor when entering into the pit 1a.

When the lock release command signal is input, it is confirmed whether the car 7 is stopped (step S2). If the cage | basket | car 7 is stopped safely, it is confirmed whether the position of the cage | basket | car 7 is in the range which can move on the cage | basket | car 7 or in the pit 1a (step S3).

If the position of the cage | basket | car 7 is appropriate, the lock release operation instruction | command is output with respect to the electromagnetic solenoid 14 (step S4). Thereby, the electromagnetic solenoid 14 is excited, the latch plate 34 is rocked, and the engagement of the latch 33 and the latch plate 34 is released. In this state, the maintenance worker can manually open the door 25 of the landing and move from the landing entrance 21 onto the car 7 or into the pit 1a.

The door 25 of the opened landing door is closed by manual or pressing force of a door closer (not shown). The excitation of the electromagnetic solenoid 14 continues only for a predetermined time regardless of whether or not the door 25 of the landing hall is actually opened or closed.

After outputting the unlocking operation command, the unlocking control unit 15 checks whether or not the door 25 of the landing hall is opened within the set time (step S5). Information as to whether or not the door 25 of the landing hall is actually opened can be obtained from the driving control device 9.

When the door 25 of the landing platform is not opened within the set time despite the output of the unlocking operation command, the latch plate 34 is engaged again with the latch 33 because the excitation of the solenoid 14 is terminated. The lock release is stopped (step S6).

In addition, when opening of the door 25 of the boarding point is confirmed within the set time, a command (startable command) forbidding the movement of the car 7 outside of a predetermined condition is output to the operation control device 9 ( Step S7). The predetermined condition is the operation of the switch 12 on the car when the doors 25 of the landings other than the lowermost floor are opened, and the non-latch type switch 13 of the doors 25 of the landings of the lowest floor. Operation.

That is, when moving to the cage | basket | car 7 from the boarding gate entrance 21 other than the lowest floor, a maintenance worker can elevate the cage | basket | car 7 by operation of the switch 12 on a cage | basket | car. Moreover, when entering into the pit 1a from the boarding point entrance 21 of the lowest floor, a maintenance worker can raise and lower the cage | basket | car 7 by operation of the non-latch-type switch 13. As shown in FIG. Other than these conditions, starting the drive device 8 including the maintenance operation is prohibited, and the brake of the drive device 8 also remains in a braking state.

When the maintenance worker returns to the landing hall, the lock release command signal is inputted from the hoistway operation unit 17 to the unlocking control section 15 to manually open the landing door 25 again. During the maintenance work, the lock release control unit 15 monitors whether the hoistway operation unit 17 has been operated (step S8). When the hoistway operation part 17 is operated, the lock release operation instruction | command is output with respect to the electromagnetic solenoid 14 (step S9), and the electromagnetic solenoid 14 is excited in predetermined time.

Then, it is confirmed whether the end switch has been operated (step S10), and if the end switch is operated, the car movement permission command is output to the operation control apparatus 9 (step S11). The car movement prohibition command becomes effective until the end switch is operated.

Finally, the operation mode of the operation control apparatus 9 returns to the normal operation mode, and the maintenance work ends.

According to such a landing door unlocking device, since the locking device 32 is unlocked by the driving force of the electromagnetic solenoid 14, a hole for inserting the unlocking operation tool is provided in the landing door 25 or around it. There is no need to improve designability.

Moreover, since the electromagnetic solenoid 14 is controlled by the instruction | command from the lock release control part 15, the drive control according to the state of the visibility device 32 is connected by connecting the lock release control part 15 to the drive control device 9. Can be carried out.

In addition, since the lock release command signal is invalid when the operation mode of the operation control device 9 is the normal operation mode, the locking device 32 is not accidentally released during normal operation.

In addition, since the unlocking control unit 15 causes the electronic solenoid 14 to perform the unlocking operation only within a preset time after receiving the unlocking command signal, when the unlocking command signal is accidentally inputted, The device 32 can be prevented from being unlocked.

Moreover, since the lock release control part 15 makes the lock release command signal from the board | substrate operation part 16 valid according to the position of the cage | basket | car 7, the cage | board | cab boards when the cage | basket | car 7 does not stop at an appropriate position. Can be prevented from accidentally opening the door 25.

In addition, since the external battery device 18 can be connected to the unlocking control unit 15, the unlocking operation can be performed even during a power failure.

Moreover, since the movement of the cage | basket | car 7 is regulated from the hoistway operation part 17 to the lock release control part 15 until the unlock switch command is input, until the end switch is operated, it will make a mistake during maintenance work. The car 7 does not move.

In addition, in the above example, although the lock release control part 15 was provided in each floor, it does not necessarily need to divide into each floor. That is, you may control the actuator of all layers by one unlocking control part. In this case, the lock release control unit may be provided, for example, in the operation control device. The landing layer may be divided into a plurality of blocks, and a lock release control unit may be provided for each block.

The actuator is not limited to the solenoid, and an actuator that mechanically operates the correcting device in response to the unlock operation command from the unlocking control unit may be, for example, a linear motor, an air actuator, a hydraulic actuator, or the like. It is possible.

In addition, in the above example, although the door of the center-opening platform of two doors was shown, the number of doors and the opening-closing method of a landing hall are not limited to this, For example, this invention is applicable also to the door of one open-type landing hall. Can be.

In addition, in the above example, when the lock release command signal is input to the lock release control unit 15, it is determined whether the car 7 is stopped at a predetermined position. However, in the maintenance operation mode, the lock release command signal is determined. Is inputted, the information is transmitted to the driving control device, the car 7 is automatically moved to a position corresponding to the boarding point where the unlocking command signal is inputted, and stopped, and then the unlocking operation command is received from the unlocking control unit. You may make it output.

As described above, the present invention can be used for an elevator door lock releasing device of an elevator for releasing a locking device for a door of a landing.

Claims (9)

An elevator door unlocking device for unlocking a locking device of a landing door, An actuator for operating and releasing the locking device, and And a lock release control unit configured to receive a lock release command signal and cause the actuator to perform a lock release operation. The method of claim 1, The lock release control unit is connected to an operation control device that controls the operation of the elevator, and when the operation mode of the operation control device is the normal operation mode, the lock release command signal is invalid. Door unlocking device. The method of claim 1, The lock release control unit, the elevator door door unlocking device, characterized in that for performing the lock release operation to the actuator only within a predetermined time after receiving the lock release command signal. The method of claim 1, It is provided in a boarding point, and a boarding point operation part for inputting a lock release command signal to the said lock release control part is further provided, The said lock release control part makes the said lock release command signal from the said platform operation part effective according to the position of a cage | basket | car. Elevator door unlocking device, characterized in that. The method of claim 4, wherein The said lock release control part makes the lock release command signal from the said platform operation part other than the lowest floor landing point effective when the car stops at the position which can board the said car from a corresponding platform. Door unlocking device. The method of claim 4, wherein The lock release control unit is an elevator landing door unlocking device that makes the lock release command signal from the landing operation unit of the lowest floor landing station effective when the car is stopped at a position where the lock release command signal can enter the landing from the lowest floor landing area. The method of claim 1, An elevator door door unlocking device, characterized in that it is connectable to said unlocking control section at a boarding station and further comprises a portable external battery device for supplying electric power for driving said actuator. The method of claim 1, It is provided in the platform, and also comprises a platform operation unit for inputting a lock release command signal to the lock release control unit, the operation of the platform operation unit is unlocked elevator door door unlocking device, characterized in that performed by a dedicated card key . The method of claim 1, It is provided in the hoistway, and also comprises a hoistway operation unit for inputting a unlocking command signal to the unlocking control unit, and an end switch provided in the hoistway, and after the unlocking command signal is input from the hoistway operation unit to the unlocking control unit. The elevator door lock releasing device according to claim 1, wherein movement of the car is restricted until the end switch is operated.

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