JP4047629B2 - Maintenance operation apparatus and maintenance operation method for one-shaft double-car elevator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for maintenance operation of an elevator having a lower car and an upper car that are independently operated in the same hoistway and a method of maintenance operation.
[0002]
[Prior art]
Normally, when carrying out maintenance work for an elevator, first, operation due to operation of a landing button, a destination button in the car, and the like is blocked by an operation changeover switch provided in the control panel or the car. Then, board the car or on the car to perform maintenance work on each device. This is a measure to prevent the car from running by a third party operation and causing danger to maintenance personnel. In particular, check the rotating parts of hoistway equipment and hoisting machines on the car. In some cases, such measures are essential.
[0003]
For example, a similar measure is required even in an elevator in which two cars are operated independently in the same hoistway as shown in Japanese Patent Application Laid-Open No. 2001-226048. In this case, since two cars, an upper car and a lower car, are arranged in the same hoistway, at the time of maintenance work, so as not to pose a danger to workers due to traveling of the car not used for work, At the same time as taking measures to prevent the operation by the third party, it is necessary to set the car that is not used for work to a rest state.
[0004]
In addition, if the car not used for maintenance stops in the middle part of the hoistway, the lift range in which the car used for maintenance can travel is limited, so the car that is not used for maintenance is placed at the top. It is necessary to stop at the floor or the lowest floor. As a procedure for setting the car stop position and operation mode for such maintenance work, first board the car not used for maintenance and travel to the final floor, then switch the operation provided on the operation panel in the car In order to get into the resting state by operating the switch, the vehicle is moved to another floor by stairs or the like, and boarded in the car used for maintenance for maintenance work.
[0005]
In an elevator in which two car control devices are located outside the hoistway, the operation switch provided on the control panel of each car is directly operated, so that the car that is not used for maintenance work can be removed from the terminal floor. The car used for maintenance work is stopped so that it can be stopped on any floor, and then the car used for the work is boarded for maintenance work. .
[0006]
[Problems to be solved by the invention]
In the conventional one-shaft double-car elevator maintenance operation system as described above, all the processes are entrusted to the maintenance staff. In addition to wasting time, there is a problem that there is a risk that the car may run if the stoppage of the car not used for maintenance is mistaken. In addition, in a machine room-less elevator in which a control device is installed in a hoistway, it is necessary to take measures to stop each car before operating the control device. Therefore, a car by directly operating the control device before stopping the car. There is also a problem that it is impossible to set and pause the position.
[0007]
The present invention has been made to solve the above-mentioned problems, and is a maintenance operation device for a one-shaft double-car elevator capable of easily and safely carrying out a car stop position setting and a stoppage for maintenance work, and its The purpose is to provide a maintenance operation method.
[0008]
[Means for Solving the Problems]
A maintenance operation device for a one-shaft double-car elevator according to a first aspect of the present invention is an elevator including a lower car and an upper car that are independently operated in the same hoistway, and each of the upper and lower cars. When the maintenance operation switch is operated on one of the upper and lower cars, the car that has not been operated is moved to the final floor, and then the car is put into a dormant state. The maintenance operation command means for outputting the command and the car for which the maintenance operation switch has been operated until the car for which the maintenance operation switch has not been operated travels to the terminal floor and enters a dormant state. And a travel inhibition command means for inhibiting travel .
[0009]
Further, a maintenance operation device for a one-shaft double-car elevator according to the second aspect of the present invention provides an elevator having a lower car and an upper car, which are independently operated in the same hoistway, in each of the upper and lower cars. When a maintenance operation switch is provided and the maintenance operation switch of the upper car is operated, the upper car is put into a dormant state, the lower car is driven to the lowest floor, and when the lower car arrives at the lowest floor, the upper car When the car's hibernation state is released, while the maintenance operation switch for the lower car is operated, the lower car is put into the hibernation state, the upper car is driven to the top floor, and when the upper car arrives at the top floor, the above Maintenance operation command means for releasing the rest state of the lower car is provided.
[0010]
Further, the maintenance operation method for the one-shaft double-car elevator according to the third invention is an elevator having a lower car and an upper car that are operated independently in the same hoistway, and one of the upper and lower cars. When the maintenance operation switch is operated, after the car that has not been operated is moved to the terminal floor, a command to output a command to put the car into a sleep state is output, and the maintenance operation switch is operated. cage towards was no those having between until traveling to dormant terminal landing, the steps you block the travel of the car towards which the maintenance operation switch is operated, the.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 and FIG. 2 are diagrams showing an embodiment of the first to third inventions of the present invention. FIG. 1 is an overall configuration diagram and FIG. 2 is an operation flowchart.
In FIG. 1, 1A is a lower car of a one-shaft double-car type elevator, 1B is also an upper car, and 2A is a maintenance operation switch provided on an operation panel (not shown) in the lower car 1A and operated during maintenance work. Similarly, 2B is a maintenance operation switch provided in the upper car 1B. For example, when the lower car 1A is used for maintenance work, the maintenance operation switch 2A is turned on.
[0012]
Reference numerals 3A and 3B denote moving cables connected to the maintenance operation switches 2A and 2B and the control devices 4A and 4B, respectively. The on / off states of the maintenance operation switches 2A and 2B are controlled by the control devices 4A and 4B via the movement cables 3A and 3B. Is transmitted. Reference numeral 5 denotes a maintenance operation control device, which includes a communication unit 6 and a processing unit 7. The processing unit 7 can transmit and receive signals to and from the control devices 4A and 4B via the communication unit 6. A command for controlling 1A and 1B is issued.
[0013]
Next, the operation of this embodiment will be described with reference to FIG. Here, it is assumed that the lower car 1A is used for maintenance work.
The maintenance staff turns on the maintenance operation switch 2A of the in-car operation panel of the lower car 1A. The state of the maintenance operation switch 2A is transmitted to the control device 4A via the moving cable 3A, and the processing unit 7 of the maintenance operation control device 5 detects the state of the maintenance operation switch 2A by the communication unit 6, and performs the maintenance operation in step S1. It is determined whether the switch 2A is turned on.
[0014]
Since the maintenance operation switch 2A is now on, the process proceeds to step S2, and a command is issued to the control device 4A so as to put the lower car 1A into a resting state where it cannot travel at all. In step S3, a command is issued so that the upper car 1B not used for maintenance travels to the top floor. In step S4, the process waits for the upper car 1B to arrive at the top floor. If the upper car 1B arrives at the top floor, in step S5, the controller 4B is instructed to put the upper car 1B in a dormant state.
[0015]
In step S6, the resting state of the lower car 1A is released. In step S7, maintenance work is subsequently performed using the lower car 1A.
Thus, when the maintenance work is completed and the upper car 1B and the lower car 1A are returned to the normal operation, the maintenance operation switch 2A of the lower car 1A is turned off. In step S8, it is determined whether the maintenance operation switch 2A is turned on. If it is turned on, the process returns to step S7 to continue the maintenance work, and if it is turned off, the process proceeds to step S9. In step S9, the suspension state of the upper car 1B is released, and the normal operation state is restored.
[0016]
The case where the lower car 1A is used for maintenance work has been described above. Conversely, when the upper car 1B is used for maintenance work, the maintenance operation switch 2B in the upper car 1B is turned on, so that steps S11 to S11 are performed. This is similarly achieved by the process of S19. That is, after the lower car 1A travels to the lowest floor, it enters a resting state, and the maintenance operation is performed by the upper car 1B.
[0017]
Here, steps S1 to S6 and S11 to S16 constitute maintenance operation command means, and steps S1, S2, S11 and S12 constitute travel inhibition command means.
In this way, for example, when the maintenance operation switch 2A is operated in the lower car 1A, the lower car 1A is put into a resting state, the upper car 1B is driven to the top floor, and then the upper car 1B is put into a resting state. Since the 1A hibernation state is released, it is possible to perform maintenance work with a simple operation and to improve the maintenance work efficiency.
[0018]
【The invention's effect】
As described above, in the first invention of the present invention, when the maintenance operation switch is operated in one of the upper and lower cars that are operated independently, after the other car is driven to the terminal floor, the car is put into a resting state. In addition, since the car whose maintenance operation switch was not operated travels to the terminal floor and is in a dormant state, the car whose maintenance operation switch is operated is prevented from traveling. The maintenance work can be performed by simple operation, the maintenance start time of the maintenance car can be secured, and the maintenance work efficiency can be improved.
[0019]
Further, in the second invention, when the maintenance operation switch is operated in one of the upper car and the lower car that are operated independently, the car is put into a dormant state, and the other car is caused to travel to the terminal floor. When arriving at the final floor, the suspension state of one car is released, so maintenance work can be performed on either car by simple operation, and the maintenance start time of the car for maintenance work is secured, and the maintenance work Efficiency can be improved.
[0020]
Further, in the third invention, when the maintenance operation switch is operated in one of the upper and lower cars that are operated independently, after the other car has traveled to the terminal floor, the car is put into a dormant state ; Until the car whose maintenance operation switch has not been operated travels to the terminal floor and enters a dormant state, the vehicle having the maintenance operation switch operated is prevented from traveling . Maintenance work can be performed by simple operation , maintenance start time of a car for maintenance work can be secured, and maintenance work efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing Embodiment 1 of the present invention.
FIG. 2 is an operation flowchart showing Embodiment 1 of the present invention.
[Explanation of symbols]
1A Lower car, 1B Upper car, 2A, 2B Maintenance operation switch,
4A, 4B control device, 5 maintenance operation control device.
S1-S6, S11-S16 Maintenance operation command means, S1, S2, S11, S12 Travel inhibition command means.

Claims (3)

In an elevator provided with a lower car and an upper car that are operated independently in the same hoistway, a maintenance operation switch is provided for each of the upper and lower cars, and the maintenance operation switch is operated on one of the upper and lower cars. The maintenance operation command means for outputting a command to put the car that has not been operated on the maintenance operation switch to the final floor and then putting the car into a sleep state, and the maintenance operation switch that has not been operated A one-shaft double comprising: a travel inhibition command means for inhibiting the traveling of the car on which the maintenance operation switch has been operated until the car has traveled to the terminal floor and is in a dormant state. Car elevator maintenance operation device.   In an elevator having a lower car and an upper car that are operated independently in the same hoistway, a maintenance operation switch is provided for each of the upper and lower cars, and when the maintenance operation switch of the upper car is operated, The upper car is put into a dormant state, the lower car is driven to the lowest floor, and when the lower car arrives at the lowest floor, the dormant state of the upper car is released, while the maintenance operation switch for the lower car is operated. Then, the vehicle is provided with maintenance operation command means for putting the lower car into a dormant state, causing the upper car to travel to the top floor, and releasing the dormant state of the lower car when the upper car arrives at the top floor. One-shaft double-car elevator maintenance operation device. In an elevator with a lower car and an upper car that are operated independently in the same hoistway, when the maintenance operation switch is operated on one of the upper and lower cars, the maintenance operation switch is not operated After the car has traveled to the final floor, the step of outputting a command to put the car into a resting state and the time when the car whose maintenance operation switch has not been operated travels to the last floor and enters a resting state And a step of blocking the traveling of the car on which the maintenance operation switch has been operated, and a maintenance operation method for a one-shaft double-car elevator.

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