JP2010064800A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the working efficiencies of maintenance and inspections by eliminating a burden that a worker has to reciprocate between the landing on the uppermost story and a machine room. <P>SOLUTION: An elevator device includes a switch operation member 3, a car loading position detection switch 5 installed inside a hoistway 4, selector switches (11, 12) for switching an operation mode, a manual mode switch 21 for informing that the worker rides on the car for operation, an indication lamp 31 turned on when the car is stopped at the car loadable position, and a control part 9 which moves the car toward the car loadable position and stops the car at the car loadable position when receiving an instruction for movement from the inside of the car in the car loading mode, turns on the indication lamp, invalidates an instruction signal from the inside of the car and an instruction signal from a landing since the manual mode switch is changed from the OFF to ON, and validates the instruction signals on the maintenance and inspections performed on the car. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator apparatus for performing a series of operations necessary for maintenance and inspection work of an elevator.

Conventionally, the following sequence of procedures has been followed when an operator gets on the car and performs work during maintenance and inspection of the elevator by one person.
Procedure 1) The operator switches the switch in the car to the manual mode.
Procedure 2) The operator goes to the machine room and moves the elevator car to the position where it can be boarded on the car by checking the markings painted on the main rope with the portable switch for manual operation installed in the machine room. Let
Procedure 3) To board the car, the worker moves to the landing on the top floor, unlocks the landing door, and then boards the car.

However, when performing such a conventional series of procedures, there are the following problems.
Problem 1) If the marking on the main rope has become difficult to see due to aging, etc., the marking may be overlooked when operating in the machine room, and to prevent such oversight. Re-marking is required.
Problem 2) The boarding position may shift due to the effect of the main rope elongation due to secular change.

  As a conventional elevator that solves such a problem, there is the following technique (for example, see Patent Document 1). The elevator in this Patent Document 1 is provided with a position detection switch in the hoistway so that the elevator can be operated by an operation member of the car when the car moves to a boardable position. In the car boarding mode, the car is moved toward the car boardable position, and then the car is stopped in response to a signal from the position detection switch. As a result, the car can be easily and more accurately stopped at the car-mountable position during maintenance work on the car, and the reliability can be improved.

JP-A-9-286575

However, the prior art has the following problems.
In the conventional elevator apparatus like patent document 1, a car can be moved to the stable boardable position by the function of a position detection switch. However, since the driving operation itself is still performed in the machine room, it is the same as the conventional point that the operator must reciprocate between the hall on the top floor and the machine room. Therefore, improvement in work efficiency is strongly desired in that workability is poor and annoyance remains.

  The present invention has been made to solve such problems, eliminates the hassle of having to reciprocate between the hall on the top floor and the machine room, and improves work efficiency during maintenance and inspection. It is an object of the present invention to obtain an elevator apparatus that can be used.

  The elevator apparatus according to the present invention includes a switch operating member provided in a car and a boarding position on a car provided in a hoistway so that the switch operating member is operated by the switch operating member when the car moves to a boardable position on the car. A detection switch, a changeover switch provided in the car that switches between the normal operation mode and the boarding mode for maintenance / inspection work, and a switch provided on the car. A manual mode switch that informs you that you will be working after boarding, an indicator light that is provided at the landing and lights up when the car is stopped at the boardable position in boarding mode, and the switch If a move command is received from the car while the boarding mode is selected, the car is moved toward the boardable position and the car boarding position detection switch In response to this signal, the car is stopped at the boardable position, the indicator light is turned on, and the manual mode switch is switched from OFF to ON so that the command signal from the car and the command signal from the landing And a control unit that validates a command signal related to maintenance inspection work on the car.

  According to the elevator apparatus according to the present invention, by enabling a series of operations for performing maintenance / inspection work based on various input signals from the hoistway, in the car, on the car, and the landing, However, it is possible to obtain an elevator apparatus that can eliminate the inconvenience of having to reciprocate between the top floor hall and the machine room and improve the work efficiency during maintenance and inspection.

  Hereinafter, preferred embodiments of an elevator apparatus according to the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of an elevator apparatus according to Embodiment 1 of the present invention. FIG. 1 illustrates a state in which a car 1 a of an elevator car 1 is in a car-mountable position in the vicinity of a hall 2 on the top floor. Further, the car 1 is provided with a switch operating member 3, and a car boarding position detection switch 5 is provided in the hoistway 4.

  The car boarding position detection switch 5 is a switch that is operated by the switch operation member 3 and is in an ON state when the car 1 is in the car boardable position. Then, the worker 6 gets on the car 1a by unlocking a door (not shown) provided at the landing in a state where the car 1 is in the boardable position, and performs maintenance and inspection work. It can be carried out.

  The main rope 7 is a rope that is wound around a sheave (not shown) of the hoisting machine in order to raise and lower the car 1. Further, the door zone detection switch 8 indicates that the car 1 has arrived in a zone where the door can be opened and closed at the hall 2 on the top floor so that the passenger can get in and out of the car 1 in the return operation after the maintenance / inspection work is completed. This switch is turned on. Further, although not shown, the machine room has a control panel (control unit 9) that performs operation control of the elevator car and the like.

  The elevator apparatus according to the first embodiment is provided with a car boarding position detection switch 5 in the hoistway 4 so that the worker 6 can perform maintenance / inspection work without going to the machine room. In addition, the following switches are further provided at three locations in the car 1, the car top 1a, and the hall 2 on the top floor.

  First, a mode changeover switch 11 and a car boarding ON / OFF switch 12 are provided in the car 1. The mode switch 11 is a switch that switches between an automatic mode (normal operation mode) in which normal operation is performed and a manual mode for permitting the worker 6 to perform maintenance / inspection work. The on-car boarding ON / OFF switch 12 is selected to be ON when the operator 6 needs to board the car 1a and perform maintenance / inspection work (corresponding to the on-car boarding mode). OFF is selected after the maintenance / inspection work on board 1a is completed.

  Note that the mode changeover switch 11 and the onboard turn-on / off switch 12 are integrated into one changeover switch to switch between the normal operation mode and the onboard ride mode for performing maintenance / inspection work on the car. A configuration is also possible.

  The mode changeover switch 11 and the on-car on / off switch 12 provided in the car 1 need to be prevented from being easily operated by an elevator user. For this reason, for example, it is conceivable that these switches are provided in a small door so that the switch cannot be operated normally unless the small door is unlocked.

  Next, a manual mode ON / OFF switch 21 is provided on the car 1a. When the manual mode ON / OFF switch 21 is ON, the worker 6 can perform the conventional maintenance / inspection work on the car, and invalidates the button operation in the car 1 or at the landing on each floor. It has a function to make. On the other hand, when the maintenance / inspection work on the car is completed and the user gets off from the car 1a to the landing, the worker 6 sets the manual mode ON / OFF switch 21 to OFF. Thereby, it has the function which validates button operation by the normal operation panel in the cage | basket | car 1 or the landing of each floor.

  Next, on the hall 2 on the top floor, there is provided an indicator lamp 31 indicating that the vehicle is stopped at a position where it can be boarded on the car. This indicator light 31 is turned on when the operator 6 performs a DOWN operation in which the elevator is moved to a position on which the elevator can be boarded in the [boarding procedure] described later. Lights up when the elevator is stopped.

  As described above, the elevator apparatus according to the first embodiment includes the car boarding position detection switch 5 and the door zone detection switch 8 provided in the hoistway 4, the mode changeover switch 11 provided in the car 1 and the car. The boarding ON / OFF switch 12, the manual mode ON / OFF switch 21 provided on the car 1a, and the indicator lamp 31 provided on the hall 2 on the top floor are respectively connected to the control unit 9 as I / O. Yes. And the control part 9 makes it possible to perform a maintenance / inspection operation | work, without an operator going to a machine room by performing operation control based on these signals.

  FIG. 2 shows each input / output circuit connected to control unit 9 in the elevator apparatus according to Embodiment 1 of the present invention. In the car 1, there is further shown an in-car operation panel 13 for performing input / output in the normal operation mode. The hall further shows a hall operating panel 32 for performing input / output in the normal operation mode. In addition, as the indicator lamp 31, the indicator lamp included in the hall operating panel 32 can be used.

  Next, in the elevator apparatus according to the first embodiment, a series of operations for the operator 6 to get on the car 1a and start the maintenance / inspection work, and a series accompanying the return after the maintenance / inspection work is completed. The operation will be described using flowcharts.

[A series of operations to start maintenance / inspection work]
FIG. 3 is a flowchart showing a series of operations for starting maintenance / inspection work in the elevator apparatus according to Embodiment 1 of the present invention. First, the worker 6 moves the car 1 to the hall 2 on the top floor (step S301). Next, the worker 6 switches the mode changeover switch 11 in the car 1 to the manual mode and notifies the control unit 9 of the elevator apparatus that maintenance / inspection work is to be performed (step S302).

  Further, the worker 6 sets the car boarding ON / OFF switch 12 to ON, and informs the control unit 9 that it is necessary to board the car 1a and perform maintenance / inspection work (step S303). Next, the operator 6 depresses the lowest floor destination button on the in-car operation panel 13 and then gets off from the elevator car 1 (step S304). Here, the lowest floor destination button is for notifying the control unit 9 that the car is to be moved in the DOWN direction to the position where the car can be boarded, and by setting a rule in advance, the existing operation panel in the car The buttons in 13 can be used.

  Next, when the lowest floor destination button is pressed, the control unit 9 closes the automatic door after a predetermined time has elapsed (after a sufficient time has elapsed for the operator to get off), and the car 1 Is operated at a low speed (step S305). And the control part 9 will stop an elevator, if the boarding position detection switch 5 added to the hoistway 4 will be in ON state by the switch operation member 3 accompanying the car 1 (step S306). In this way, while driving at a low speed, the car 1 is stopped when the car boarding position detection switch 5 is turned on, so that the car 1 can be boarded at the boardable position (from the top floor landing 2 to the car 1a. Can be accurately stopped at a position suitable for boarding).

  Next, when the car boarding position detection switch 5 is in the ON state and the car 1 is completely stopped, the control unit 9 turns on the indicator lamp 31 and informs the worker 6 of this state (step S307). ). Therefore, after confirming that the indicator lamp 31 is lit, the worker 6 unlocks the door of the hall 2 on the top floor (step S308). Further, the operator 6 turns on the manual mode ON / OFF switch 21 on the car 1a to board the car 1a from the landing 2 (step S309).

  Thereafter, the worker 6 performs maintenance / inspection work using the existing switch box for maintenance / inspection. That is, when the manual mode ON / OFF switch 21 on the car 1a is in the ON state, the control unit 9 invalidates the command signal from the in-car operation panel 13 and the command signal from the landing operation panel 32, and on the car. The car 1 is controlled by validating the command signal from the existing switch box for maintenance and inspection related to the maintenance and inspection work.

  By such a series of processes, the worker 6 can perform maintenance / inspection work without going to the machine room. As a result, work efficiency during maintenance and inspection can be improved.

[A series of actions that accompany returning after maintenance / inspection work]
FIG. 4 is a flowchart showing a series of operations accompanying the return after the maintenance / inspection work in the elevator apparatus according to Embodiment 1 of the present invention is completed. First, the worker 6 uses the existing switch box for maintenance / inspection to move the elevator to a position where it can easily reach the hall 2 on the top floor and stop it (step S401).

  Next, the worker 6 gets off from the car top 1a, turns off the manual mode ON / OFF switch 21 of the car top 1a, and informs the control unit 9 that the maintenance / inspection work is finished (step S402). Next, the worker 6 closes the landing door and presses a button in the landing operation panel 32 installed at the landing 2 on the top floor (step S403). This button is for informing the control unit 9 that the car 1 is to be moved in the UP direction to a position suitable for getting into and out of the car 1, and by determining a rule in advance, the hall operation panel 32 is used. Existing buttons can be used.

  Next, the controller 9 performs the UP operation of the car 1 at a low speed by pressing a button installed in the hall 2 on the top floor (step S404). When the door zone detection switch 8 provided in the hoistway 4 is turned on by the switch operating member 3 attached to the car 1, the control unit 9 stops the elevator and opens the door (step S405). . In this way, the car 1 is stopped when the door zone detection switch 8 is turned on while driving at a low speed, so that the car 1 is stopped at the top floor during normal operation (from the car 2 on the top floor). It is possible to accurately stop at a position suitable for getting on and off within 1.

  Next, the worker 6 sets the on-car boarding ON / OFF switch 12 in the car 1 to OFF, and informs the control unit 9 that the maintenance / inspection work performed on the car 1a has been completed ( Step S406). Furthermore, the worker 6 switches the mode changeover switch 11 in the car 1 to the automatic mode, and notifies the control unit 9 that the maintenance / inspection work is completed (step S407).

  Through such a series of processes, the operator 6 can perform a return operation after completing the maintenance / inspection operation without going to the machine room. As a result, work efficiency during maintenance and inspection can be improved.

  As described above, according to the first embodiment, based on input signals from the hoistway, in the car, on the car, and the landing, a series of operations for performing maintenance / inspection work of the elevator by one person work is possible. become. Therefore, the operator does not need to reciprocate between the hall and the machine room, and can perform maintenance / inspection work on the car only by operation at the hall or in the car. Furthermore, even after the maintenance / inspection work is completed, the operator does not need to reciprocate between the landing and the machine room, and can return to the normal operation mode only by operation at the landing. As a result, work efficiency related to maintenance / inspection can be improved.

  Furthermore, a signal input button (for example, an input button for a command signal for moving the car) or a signal output indicator lamp is determined in advance by setting a rule in advance. It is possible to share the hall operation panel, and the cost can be reduced.

  In addition, when an operator is on the car to perform maintenance and inspection work, the elevator should not be moved unexpectedly due to a button operation by a third party or a button on failure. When the manual mode ON / OFF switch provided above is in the ON state, both the car and landing button operations can be disabled. As a result, the safety of workers on the car can be ensured.

It is a block diagram of the elevator apparatus in Embodiment 1 of this invention. It is the figure which showed each input-output circuit connected to the control part 9 in the elevator apparatus of Embodiment 1 of this invention. It is the flowchart which showed a series of operation | movement for starting the maintenance and inspection work in the elevator apparatus of Embodiment 1 of this invention. It is the flowchart which showed the series operation | movement accompanying the return after the maintenance and inspection work in the elevator apparatus of Embodiment 1 of this invention was complete | finished.

Explanation of symbols

  1 car, 1a on car, 2 top floor landing, 3 switch operation member, 4 hoistway, 5 upper boarding position detection switch, 6 operator, 7 main rope, 8 door zone detection switch, 9 control unit, 11 mode change switch , 12 Boarding ON / OFF switch, 21 Manual mode ON / OFF switch, 31 Indicator lamp.

Claims (2)

A switch operating member provided in the car;
A boarding position detection switch on the car provided in the hoistway so that the switch operating member operates when the car moves to a boardable position on the car;
A changeover switch provided in the car for switching between a normal operation mode and a boarding mode on the car for maintenance / inspection work;
A manual mode switch that is provided on the car and informs the operator that the operator is on the car by carrying out the ON state to carry out the work;
An indicator lamp which is provided at a landing and lights up in a state where the car is stopped at the boardable position in the car boarding mode;
When a movement command is received from the car while the onboard car mode is selected by the changeover switch, the car is moved toward the onboard position where the car can be boarded, and the onboard position detection switch In response to the signal from the car, the car is stopped at the position where the car can be boarded, the indicator lamp is turned on, and the manual mode switch is turned from the OFF state to the ON state. And a control unit that invalidates a command signal from the landing and validates a command signal related to maintenance and inspection work on the car. The elevator apparatus according to claim 1,
A door zone detection switch provided in the hoistway so as to be operated by the switch operating member when the car moves to a stop position suitable for opening / closing the car door on the top floor in the normal operation mode; ,
The control unit opens and closes the car when the manual mode switch is switched from an ON state to an OFF state and a movement command is received from the landing while the on boarding mode is selected by the changeover switch. The car is stopped at the stop position upon receipt of a signal from the door zone detection switch, and the door is opened. By switching to the operation mode, the command signal from the inside of the car and the command signal from the landing are validated, and the command signal related to maintenance inspection work on the car is invalidated.

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