JP2006225090A - Elevator system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator system capable of improving working efficiency in maintenance, and securing sufficient safety in maintenance work. <P>SOLUTION: The elevator system 1 comprises: a hoist 4 hoisting a cage 2; a control panel 5 controlling the cage 2 and the hoist 4; a breaker 7 shutting off electric power supplied from a power electric source 6 to the control panel 5; a switch 81 for remote control, for supplying the electric power to the control panel 5 or shutting it off; and a remote control part 82 for remotely controlling the switch 81 for remote control. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator system, and more particularly to an elevator system capable of efficiently performing maintenance and inspection.

  As the number of buildings increases, elevators are indispensable as a means of moving to the target floor. Further, in elevator systems used in many commercial facilities such as condominiums and office buildings, operation management is performed in which a plurality of elevators are always operated and a user is transported to a destination floor as soon as possible.

  In order to ensure the safety of users, the elevator system is obliged to perform maintenance and inspection work regularly. As operation management becomes more complicated, the contents of maintenance and inspection work tend to become more complicated. On the other hand, when carrying out operation management that always operates the elevator, it is difficult to stop the elevator system for a long time in the maintenance inspection work, and it is necessary to perform the maintenance inspection work accurately and promptly. In consideration of such restrictions, maintenance and inspection work of an elevator system is required to sufficiently secure the safety of an operator who performs the work while increasing the efficiency.

  As shown in FIG. 3, a general elevator system 100 includes a car room 102 that moves up and down in a hoistway 101, a power source 103 that supplies electric power, a breaker 104 that cuts off the supply of electric power, and one end. A main rope 106 to which the car room 102 is connected is wound and a hoisting machine 108 that moves the car room 102 up and down, a counterweight 107 connected to the other end of the main rope 106, the hoisting machine 108 and the car room 102. And a control panel 105 for controlling the power supplied to the device. The car room 102 and the control panel 105 are connected through a moving cable 109 that moves as the car room 102 moves up and down. Electric power and control signals are supplied from the control panel 105 to the car room 102 through the moving cable 109. ing. The power source 103, the breaker 104, and the control panel 105 are installed in a machine room 110 different from the hoistway 101.

  Maintenance and inspection work of the elevator system 100 constructed in this way is performed in the following procedure. First, an operator gets into the upper cab 102a and moves the cab 102 to a position where it can be easily operated in the hoistway 101. The movement of the car room 102 is controlled by a remote controller in the car room 102a.

  Here, in order to ensure safety in maintenance and inspection work, the worker once gets out of the car room 102a, goes to the machine room 110 of the elevator system 100, operates the breaker 104, and controls the control panel from the power source 103. The power supply to 105 is cut off. The worker returns to the car room 102a again and restarts the maintenance and inspection work. After the maintenance and inspection work is completed, the operator again descends from the car room 102 a into the car room 102, goes to the machine room 110, operates the breaker 104, and supplies power from the power source 103 to the control panel 105. Restart supply.

  However, in the above-described maintenance and inspection work of the elevator system 100, in order to ensure the safety, the worker needs to move from the car room top 102a to the machine room 110 and operate the breaker 104. For this reason, the maintenance and inspection work efficiency is reduced due to the movement and work of the worker, and the maintenance and inspection work time is increased. In particular, this tendency becomes conspicuous as the number of elevators increases and the number of elevators increases.

  In maintenance and inspection work, the operator determines the stop position of the cab 102 in advance and cuts off the power. However, depending on the structure of the elevator system 100 and the stop position of the cab 102, the landing door becomes far away, and the operator There are cases in which it is not possible to exit the platform or to get off the car room 102a. In such a case, in addition to the worker who performs the maintenance / inspection work on the car room 102a, another worker who only operates the breaker 104 is required, and the number of workers for the maintenance / inspection work increases. Maintenance work efficiency will be reduced.

  In addition, even if the electric circuit installed in the car room 102a breaks down during maintenance and inspection work, and it becomes necessary to immediately shut off the breaker 104, this cannot be dealt with.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator system that can improve maintenance and inspection work efficiency and sufficiently ensure safety of the maintenance and inspection work. It is to be.

  A feature of the embodiment of the present invention is that in an elevator system, a hoisting machine that raises and lowers the car room, a control panel that controls the car room and the hoisting machine, and an electric power supplied from the power source to the control board are cut off And a remote operation switch for supplying or cutting off power to the control panel, and a remote operation unit for remotely operating the remote operation switch.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to improve maintenance inspection work efficiency, the elevator system which can fully ensure the safety | security of maintenance inspection work can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
An elevator system 1 shown in FIG. 1 includes a hoisting machine 4 that raises and lowers a car room 2 in a hoistway 3, a control panel 5 that controls the car room 2 and the hoisting machine 4, and a power source 6 to a control panel 5. A breaker 7 for cutting off the supplied power, a remote operation switch 81 for supplying power to the control panel 5 or cutting off the supply of power, and a remote operation unit for conducting or cutting off the remote operation switch 81 in remote operation 82.

  One end of the main rope 9 wound around the hoist 4 is connected to the cab 2 and the other end of the main rope 9 is connected to the counterweight 10. The hoisting machine 4 is supplied with electric power from the power source 6 through the breaker 7 and the control panel 5, and the hoisting machine 4 is rotated by the supplied electric power. By the rotation of the hoisting machine 4, the cab 2 is raised and lowered in the hoistway 3.

  Inside the control panel 5 is an elevator control that controls the rotation of the hoisting machine 4 based on commands from the operation unit 20 disposed in the car room 2 and the operation units disposed in the landings (not shown). A portion 50 is provided. The elevator control unit 50 controls the electric power supplied to the hoisting machine 4. The elevator control unit 50 is constructed by a circuit system including a CPU. The control panel 5 and the car room 2 are connected through the moving cable 11, and the signal incorporated in the moving cable 11 is connected between the elevator control unit 50 of the control panel 50 and the operation unit 20 in the car room 2. They are connected through a line 11a.

  In the first embodiment, the remote operation switch 81 is disposed inside the control panel 5 and is inserted between the breaker 7 and the elevator controller 50. That is, the remote operation switch 81 supplies power to the elevator control unit 50 from the power source 6 through the breaker 7 or cuts off the supply of power. For example, a relay can be used for the remote operation switch 81.

  In the first embodiment, the remote control unit 82 is disposed on the cab 2a in order for the operator 12 to perform maintenance and inspection work efficiently. The remote operation unit 82 and the remote operation switch 81 are electrically connected through a signal line 11 b incorporated in the moving cable 11. That is, when the operator 12 operates the remote operation unit 82, the remote operation switch 81 can be operated in the car room 2 a, and the elevator control unit can be operated from the power source 6 regardless of whether the breaker 7 is turned on or off. Power supply to 50 can be controlled to be cut off. Further, by incorporating the signal line 11b connecting the remote operation unit 82 and the remote operation switch 81 into the existing moving cable 11, there is no need to newly lay the signal line 11b. A key switch that cannot be operated by a person other than the operator 12 can be used for the remote operation unit 82. In addition, when the remote operation unit 82 is disposed in a place where no one other than the worker 12 can enter, the remote operation unit 82 is not limited to a key switch, and includes a lever switch, a toggle switch, a push button switch. Commercially available switches such as dip switches and rotary switches can be used.

  In the first embodiment, the power source 6, the breaker 7, and the control panel 5 described above are installed inside the machine room 1 </ b> M above the hoistway 3. Note that the first embodiment may be applied to the elevator system 1 in which the machine room 1M is disposed in the lower part of the hoistway 3. The first embodiment can also be applied to the elevator system 1 in which the control room 5 or the like is provided in the hoistway 3 without providing the machine room 1M.

  Next, a procedure for maintenance and inspection work of the elevator system 1 will be described. First, the worker 12 gets into the car room 2a and moves the car room 2 to a position where the work can be easily performed in the hoistway 3. The movement of the cab 2 is controlled by a remote controller (not shown) on the cab 2a.

  Here, in order to ensure safety in maintenance and inspection work, the operator 12 operates the remote control unit 82 on the car room 2a and is supplied from the power source 6 to the elevator control unit 50 through the breaker 7. The remote power switch 81 cuts off the electric power. That is, the worker 12 once gets down from the car room 2a to the landing, moves to the machine room 1M, operates the breaker 7 to cut off the supply of power, and from the machine room 1M to the car room 2a again. There is no moving. The operator 12 can perform maintenance and inspection work in a safe state in which the supply of electric power to the elevator control unit 50 is interrupted and the car room 2 is completely stopped in the hoistway 3.

  When the maintenance / inspection work is completed at the position where the cab 2 is stopped, the operator 12 operates the remote control unit 82 on the cab 2a to turn on the remote control switch 81, and from the power source 6 through the breaker 7. Electric power is supplied to the elevator controller 50. In other words, the worker 12 once gets down from the car room 2a to the landing, moves to the machine room 1M, operates the breaker 7 to supply power, and moves from the machine room 1M to the car room 2a again. There is nothing to do.

  As described above, in the elevator system 1 according to the first embodiment, the remote control switch 81 and the remote control unit 82 are provided, so that the elevator control unit 50 of the control panel 5 passes through the breaker 7 from the power source 6. Since the work for supplying or shutting off the electric power can be performed in the car room 2a, the maintenance and inspection work efficiency can be improved and the safety can be sufficiently secured.

  In the first embodiment, the example in which the remote operation unit 82 is provided on the car room 2a has been described. However, in the present invention, the remote operation unit 82 is provided at a place other than the car room 2a, for example, the car room. 2 and the hoistway 3. In the present invention, the remote control unit 82 may be disposed inside the car room 2 and the hoistway 3 or at a plurality of locations inside the hoistway 3.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the description of the second embodiment, the same components as those of the elevator system 1 according to the first embodiment are denoted by the same reference numerals, and the description thereof is omitted because it is duplicated.

  As shown in FIG. 2, the elevator system 1 according to the second embodiment includes a wireless communication drive unit 84 that controls conduction or blocking of the remote operation switch 81 according to a command based on wireless communication, and the first implementation. The remote control unit 83 has a function equivalent to that of the remote control unit 82 of the elevator system 1 according to the embodiment and a wireless communication function. That is, when the operator 12 operates the remote operation unit 83, the operation command is transmitted to the wireless communication drive unit 84 by communication, and the power supply by the remote operation switch 81 is performed based on the transmitted operation command. Blocking can be performed.

  Thus, in the elevator system 1 according to the second embodiment, the same effect as that obtained by the elevator system 1 according to the first embodiment can be obtained, and the remote operation switch 81 and The signal line (wired) connecting the remote control unit 82 can be eliminated. Furthermore, since the disposition position of the remote control unit 83 is not fixed, it can be carried widely within the maintenance inspection work range, and the maintenance inspection work efficiency can be further improved.

  The present invention is not limited to the above embodiment. For example, although the said embodiment demonstrated the elevator system 1 provided with the single hoistway 3, this invention can also be applied to the elevator system provided with the several hoistway.

  Furthermore, the present invention is not limited to an elevator, and can be applied to an escalator system or a mobile sidewalk system. Specifically, in an escalator system or a mobile walkway system in which power is supplied from a drive power source through a breaker to a control panel that controls a driving device that drives a transfer surface, a switch for remote operation that supplies or cuts off power to the control panel And a remote control unit for performing remote control of the remote control switch may be provided.

1 is a schematic configuration diagram of an elevator system according to a first embodiment of the present invention. It is a schematic block diagram of the elevator system which concerns on the 2nd Embodiment of this invention. It is a schematic block diagram which shows the elevator system which concerns on a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator system 2 Car room 2a Car room top 3 Hoistway 4 Hoisting machine 5 Control panel 50 Elevator control part 6 Power supply 7 Breaker 81 Remote operation switch 82, 83 Remote operation part 84 Wireless communication drive part 9 Main rope 10 Balance Weight 11 Moving cable 11a, 11b Signal line

Claims (7)

A hoisting machine for raising and lowering the cab,
A control panel for controlling the car room and the hoisting machine;
A breaker for cutting off power supplied to the control panel from a power source;
A remote control switch for supplying or cutting off power to the control panel;
A remote operation unit for remotely operating the remote operation switch;
An elevator system characterized by comprising:   2. The elevator system according to claim 1, wherein the remote operation switch is disposed in the control panel or a power supply path between a power source and the control panel.   3. The elevator system according to claim 1, wherein the remote control unit is provided on an outer upper portion of the cab.   The elevator system according to claim 1, wherein the remote control unit is provided inside the cab.   The elevator system according to claim 1 or 2, wherein the remote control unit is provided in a hoistway in which the cab is raised and lowered.   6. The cab and the control panel are connected by a moving cable, and the remote control switch is controlled by the remote control unit through the moving cable. Elevator system according to. The elevator system according to any one of claims 1 to 5, wherein the remote operation switch is operated by wireless communication from the remote operation unit.

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