JP5052293B2 - Elevator maintenance operation device - Google Patents

Description

  The present invention relates to a maintenance operation device for an elevator that performs maintenance operation with a call button on each floor.

  In elevator maintenance work, inspecting the hoistway and inspecting equipment on the car, it is necessary for the operator to get on the car, and one person operates in the car and the other person gets on the car. Since the car is stopped at the position where it is on the car, and the worker moves on the car using the stairs etc., it takes time and effort.

  Also, in the inspection of the pit and the equipment under the car, it is time-consuming because one person operates the car and enters and exits the pit using the stairs.

  Therefore, a landing driving device for moving the car up and down during maintenance operation, for example, a call button, is provided at the landing on each floor, and an operator operates the car to move up and down at the landing.

  However, in this case, the car can be moved up and down from the landing on any floor, and if a third party accidentally operates the call button, the car moves to a position unintended by the worker, causing the operator to crash. There was a danger of being caught.

For this reason, a car position detection encoder is installed on the hoisting machine, and a car position zone detector is provided to detect the car position and detect whether the car is located in the maintenance car position zone provided on each floor. And grasp the floor where the car is located. When the floor of the car enters the maintenance car position zone, the car position zone detection circuit on that floor is turned on, and the car can be operated only by the call button on that floor. (For example, refer to Patent Document 1).
JP-A-8-59119 (paragraph numbers 0031 to 0036, FIGS. 3 and 2)

  However, in the above conventional technique, when the distance between the lowermost floor and the floor above the lowermost floor is short, a maintenance car position zone for getting onto the car on the floor above the lowermost floor, When maintenance car position zones for entering the pit on the lowest floor overlap, there is a problem that the landing driving device, for example, call buttons cannot be limited.

  The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to reliably limit the call button on which floor even if the distance between the lower floor and the floor above this lower floor is short. It is to provide a maintenance operation device for an elevator.

To achieve the above object, the present onset Akira includes elevator call button on each floor of the landing, in the elevator control device, and the call button, the car position by encoder for detecting the rotation of the motor for driving the elevator Normal operation program that performs normal operation of the elevator by information zone, door zone detector signal from the door zone detector that detects the door zone of each floor, maintenance operation switch provided in the car, and on the car provided on the car In an elevator maintenance operation device having a maintenance operation program for performing maintenance operation according to a signal of operation switching information means by a maintenance operation switch, the control device includes a car height information means determined by a building and a previous car. comprising a storage unit for driving history of, and, in the maintenance operation program, whether the For maintenance operation to limit the input of the height unit and is call button on the floor of the landing on the basis of information from the storage means and the car position information means a door zone information unit of the preceding car operating history of the one floor A call button input effective floor determination means is provided.

  With such a configuration, the call button for performing the maintenance operation is limited to one floor, so that it is possible to eliminate the danger of the operator due to an erroneous operation by a third party.

  According to the present invention, since the call buttons on the floor that enable the maintenance operation for raising and lowering the car at the landing are limited, it is possible to eliminate the danger of the operator due to an erroneous operation by a third party.

  Hereinafter, the best mode for realizing an elevator maintenance operation apparatus of the present invention will be described with reference to the drawings.

  FIG. 1 is an explanatory diagram showing a configuration of an elevator according to an embodiment of the present invention, and FIG. 2 is a determination flowchart of a call button input effective floor determination means for maintenance operation.

  In FIG. 1, call buttons 1 a, 1 b, 1 c are provided at the landings on each floor and are connected to an elevator control device 2. The car 3 and the counterweight 4 are connected via a main rope 5, and the main rope 5 is wound around a sheave 6 of a driving machine. Further, detection bodies 7a, 7b, 7c for detecting a door zone at a car stop position on each floor are installed in the hoistway, and the car 3 is provided with a door zone detector 8 for detecting the door zone. It is connected to the door zone information means 23 of the device 2.

  An encoder 9 is attached to the rotating shaft of the sheave 6 and is connected to the car position information means 21 of the control device 2.

  Further, a maintenance operation switch 10 for switching between normal operation and maintenance operation is provided in the car 3, and a car maintenance operation switch 11 for switching between maintenance operation and on-car maintenance operation is provided on the ceiling of the car 3. The signal is connected to the operation switching information means 24 of the control device 2. A limit switch 12 connects a signal to the limit switch information means 22 of the control device 2. 13 is a pit.

  The control device 2 includes a normal operation program 20 and a maintenance operation program 30 that are switched by the maintenance operation switch 10 via an operation switching information means 24.

  The control device 2 includes car height information means 31 determined by the building and operation history storage means 32, and the maintenance operation program 30 includes the car height information means 31 and operation history storage means 32. There is provided maintenance operation call button input effective floor determination means 33 for limiting the call button input during maintenance operation to one floor based on information from the cage position information means 21 and the door zone information means 23.

  In normal operation, the control device 2 is driven by information from the door zone detector 8 and encoder 9 in response to inputs of landing call buttons 1a, 1b, 1c and destination buttons (not shown) in the car. The sheave 6 of the machine is rotated to move the car 3.

  On the other hand, when the maintenance operation switch 10 is set to the maintenance operation, the maintenance operation in the car 3 or the call button input effective floor determination means for the maintenance operation is determined, and the maintenance operation by the call button operation at the landing is performed.

  In FIG. 2, the maintenance operation call button input effective floor determination means 33 first determines whether or not the vehicle is traveling in the maintenance operation (S1). If the vehicle is traveling (Yes), the call buttons 1a of all floors. 1b and 1c are disabled (S7), and if the vehicle is not traveling (No), it is next determined whether or not the on-car maintenance operation switch 11 is set to on-car maintenance operation (S2). If the maintenance operation is set (Yes), the input of the call buttons 1a, 1b, 1c on all floors is invalidated (S7). If the maintenance operation is not set on the car (No), the next step (S3) Proceed to

  Next, it is determined whether or not the car is in the door zone (S3). If it is in the door zone (Yes), the input of the landing call button on the floor is valid and the call button input on the other floor is invalid (S8). If the car is not in the door zone (No), the process proceeds to the next step (S4).

  Next, it is determined from the driving history whether the previous driving is a landing maintenance operation or a low speed driving in the pit (S4). If Yes, the input of the call button on the lower floor is made valid and the call buttons of other floors are input. Is invalid (S9). If No, the process proceeds to the next step (S5).

  Next, it is determined from the driving history whether the previous driving is a landing maintenance operation on the car or a maintenance operation on the car (S5). If Yes, the position of the floor where the car height is added to the current car position Call button input is enabled and call button inputs on other floors are disabled (S10). If No, call button inputs on all floors are disabled (S6).

  Thereafter, maintenance operation is performed by the call button 1a at the landing.

  In the embodiment configured as described above, for example, when entering the pit 13 from the lowest floor landing and performing work, and then performing maintenance operation for returning from the pit 13 and calling up the elevator on the lowest floor, first, the car The maintenance operation switch 10 is set to maintenance operation. Then, since the car 3 is in the door zone on the lowest floor, only the input of the call button 1a on the lowest floor is valid. Therefore, when the call button 1a is operated, a position suitable for entering the pit 13, that is, a position where the pit 13 can be entered and the door zone is not opened so that the door does not open on the floor above the lowest floor. Raise the car 3 by maintenance operation until it stops. Then, the worker enters the pit 13 and performs the work in the pit 13. At this time, since the stop switch (not shown) in the pit 13 is turned on, all the call buttons 1 a, 1 b, 1 c at the landing are invalid. It has become. When the work in the pit 13 is completed and the pit 13 is exited, it is outside the door zone and the previous operation is an operation for entering the pit 13 by the landing call button 1a. Therefore, only the call button 1a on the lowest floor is operated. When the call button 1a on the lowermost floor is operated, the car 3 is lowered by the maintenance operation to a position where it can be loaded into the car on the lowermost floor.

  Also, if you get off the car on the floor one level above the lowest floor, the threshold of the car is between the floor and the bottom floor, outside the door zone, and the previous operation is maintenance operation on the car Therefore, only the operation of the call button on the floor corresponding to the position obtained by adding the height of the car to the current car position, in this case, the call button 1b is effective.

  In this way, even when the distance between the lowest floor and the floor one above the lowest floor is short, the landing call button can be limited to one floor, thus eliminating the danger of the operator due to an erroneous operation by a third party. be able to.

It is explanatory drawing which shows the structure of the elevator concerning one Embodiment of this invention. It is a determination flowchart of the call button input effective floor determination means for maintenance operation.

Explanation of symbols

1a, 1b, 1c Landing call button 2 Control device 3 Car 4 Balance weight 5 Main rope 6 Drive sheave 7a, 7b, 7c Door zone detector 8 Door zone detector 9 Encoder 10 Maintenance operation switch 11 Car maintenance operation switch 20 Normal operation program 21 Car position information means 23 Door zone information means 24 Operation switching information means 30 Maintenance operation program 31 Car height information means 32 Operation history storage means 33 Call button input effective floor determination means for maintenance operation

Claims (3)

Each floor has an elevator call button, and in the elevator control device, this call button, car position information means by an encoder that detects the rotation of the motor that drives the elevator, and a door zone detector that detects the door zone of each floor Maintenance by the operation switching information means signal by the normal operation program that performs normal operation of the elevator by the signal of the door zone information means, the maintenance operation switch provided in the car, and the maintenance operation switch on the car provided on the car In an elevator maintenance and operation device equipped with a maintenance operation program for operation,
The control device includes car height information means determined by the building and storage means for storing the previous car operation history, and the maintenance operation program includes the car height information means and the previous car information . A maintenance operation call button input effective floor determining means for limiting the input of the call button at the landing on each floor to one floor based on information from the driving history storage means, car position information means and door zone information means Elevator maintenance operation device.   2. The elevator of claim 1, wherein the maintenance operation call button input effective floor determination means validates only the call button operation on the lowest floor when the operation is for entering a pit. Maintenance operation device.   3. The maintenance operation call button input effective floor determination means according to claim 1, wherein the maintenance operation call button input effective floor determination means is a call of a floor corresponding to a position obtained by adding the height of the car to the current car position. An elevator maintenance operation device characterized in that only button operation is enabled.

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