JP2008230757A - Machine room-less elevator system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a machine room-less elevator system capable of easily and reliably releasing a brake device without using any emergency battery in a main control panel. <P>SOLUTION: When a car 4 is stopped between floors due to the power failure, an elevator manager or a maintenance worker couples a plug member 16 of a portable elevator operation apparatus 12 with an outlet member 10 arranged in a landing of a reference floor, and a brake device 9 is released by supplying the current from a battery 14. Further, the weight between the car 4 and a counterweight 5 is in a balanced state, and if the car 4 is not operated only by releasing the brake device 9, a maintenance worker or the like climbs on a roof of the car 4 with the portable elevator operation apparatus 12 and the plug member 16 is coupled with the outlet member 17. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a machine room-less elevator system in which a main control panel is installed in a hoistway.

  Elevator systems are classified into two types: a “machine room installation type” in which a machine room is installed and a “machine room-less type” in which a machine room is not installed for effective use of a building. Many of the conventional elevator systems were the former type, but recently, the viewpoint of effective use of buildings is emphasized, and the latter type is gradually being adopted gradually.

  In the former, a hoisting machine and a main control panel are arranged inside the machine room installed above the hoistway, while in the latter, a hoisting machine is arranged at the uppermost part of the hoistway and a predetermined floor. A main control panel (with an elevator control device housed in the panel) is arranged at a predetermined place in the floor landing or hoistway.

Among the latter, in the machine room-less elevator system in which the main control panel is arranged in the hoistway, when a power outage accident occurs, the elevator manager and maintenance workers can quickly move the car by manual operation. In order to be able to drive, provisional driving operation devices are arranged at the landings of each floor, and an environment in which a portable temporary driving operation device can be operated on the roof of the car is adjusted (for example, Patent Document 1). reference).
JP 2004-67274 A

  By the way, when a car stops between floors during a power outage and a confinement accident occurs, the current must be supplied to the brake coil of the brake device in order to rescue the passenger by moving the car to the nearest floor. The brake device needs to be opened. In the elevator system according to Patent Document 1, it is assumed that an emergency battery provided in the main control panel is used as a current supply source to the brake coil.

  However, the emergency battery in the main control panel is likely to be deteriorated, and if the maintenance is not sufficiently performed, there is a possibility that a current sufficient to open the brake device may not be supplied. In such a case, the operation of connecting another current supply source to the brake coil must be performed at the top of the hoistway where the scaffolding is inconvenient, which imposes a great burden on the elevator manager and maintenance workers. Not only that, but the rescue of passengers is greatly delayed.

  The present invention has been made in view of the above circumstances, and can easily and reliably open the brake device without using an emergency battery in the main control panel, and can promptly move passengers in the car. The purpose is to provide a machine room-less elevator system that can be rescued.

  As means for solving the above-mentioned problems, the present invention provides a brake device for a hoisting machine disposed in the upper part of a hoistway, and an elevator control device that is disposed in the hoistway and controls the hoisting machine and the brake device. A main control panel, a brake device and an elevator control device connected to each other via a cable member, a connection terminal member disposed at a predetermined location outside the main control panel, and a brake device in a state connected to the connection terminal member The elevator control device is manually operated, and includes a portable elevator controller having a battery capable of storing at least electric power sufficient to open the brake device.

  According to the present invention, the brake device can be easily and reliably released without assuming the use of an emergency battery in the main control panel, and passengers in the car can be rescued quickly.

  FIG. 1 is an overall configuration diagram of a machine room-less elevator system according to an embodiment of the present invention. A hoisting machine 2 is disposed at the upper part of the hoistway 1, and a main rope 3 is wound around the hoisting machine 2. One end side of the main rope 3 is attached to the car 4 and the other end side is attached to the counterweight 5.

  A main control panel 6 having an elevator control device 7 is disposed on the inner wall of the hoistway 1. Between the main control panel 6 and the bottom of the car 4, a control cable, a power cable and the like are installed. The tail cord 8 is connected.

  The hoisting machine 2 is provided with a brake device 9 in parallel. The brake device 9 can maintain the car 4 in a stopped state by pressing a brake pad with a spring force against a brake drum attached to a rotational drive shaft of the hoisting machine 2. When moving the car 4 that is stopped at the landing during normal operation, the brake pad is pressed against the brake drum by electromagnetic force when the built-in brake coil is energized, and then the elevator controller 7 Is configured to rotationally drive the hoisting machine 2. Therefore, if a power failure accident occurs while the car 4 is traveling between floors and the power supply to the brake coil is cut off, it becomes impossible to release the brake pad against the brake drum, and a so-called confinement accident occurs. .

  An outlet member 10 (connection terminal member) connected to the main control panel 6 via a cable 11 is disposed at a predetermined location outside the main control panel 6. In the present embodiment, the predetermined location is a reference floor that is the entrance floor or the entrance floor of the building. In the present embodiment, the outlet member 10 is used to perform an elevator operation by the portable elevator operation device 12.

  The portable elevator operating device 12 has a battery 14 inside a main body 13, and a cable 15 having a plug member 16 attached to the tip is connected to the main body 13. The plug member 16 can be connected to the outlet member 10, and by this connection, the portable elevator operator 12 can supply current to the brake coil of the brake device 9 via the main control panel 6, and the elevator control device. 7 can be operated. Therefore, the battery 14 can store at least electric power sufficient to cause the brake device 9 to perform the opening operation.

  In this embodiment, an outlet member 17 similar to the outlet member 10 is also disposed on the roof of the car 4. The outlet member 17 is connected to the main control panel 6 via a control cable and a power cable built in the tail cord 8. The plug member 16 of the portable elevator operation device 12 can also be coupled to the outlet member 17.

  In the present embodiment, the landing detection plate 18 is disposed at the landing position of the car 4 on the side wall of the hoistway 1, and the landing detection for detecting the landing detection plate 18 on the car 4. A switch 19 (for example, constituted by a micro switch or a limit switch) is attached. The landing detection signal from the landing detection switch 19 can be sent to the portable elevator operator 12 via the elevator control device 7.

  FIG. 2 is a circuit diagram showing a main configuration of the machine room-less elevator system of FIG. The brake device 9 has a brake coil 20, and the main control panel 6 has an emergency battery 21 and a closing switch 22. One terminal T 1 of the brake coil 20 is connected to the positive side of the emergency battery 21 via the closing switch 22, and the other terminal T 2 is connected to the negative side of the emergency battery 21.

  The cable 11 includes a power cable 11a and a control cable 11b, and the terminals T1 and T2 and the elevator control device 7 are connected to the outlet member 10 through these cables. Similarly, the tail cord 8 has a power cable 8a and a control cable 8b, and the terminals T1 and T2 and the elevator controller 7 are connected to the outlet member 17 through these cables.

  In the main body 13 of the portable elevator operating device 12, an operation circuit 23, a closing switch 24 for the battery 14, and a landing notification means 25 are provided in addition to the battery 14. The cable 15 includes a power cable 15a and a control cable 15b, and the battery 14 and the operation circuit 23 are connected to the plug member 16 through these cables. Therefore, by connecting the plug member 16 to the outlet member 10 or the outlet member 17, it becomes possible to supply a current from the battery 14 to the brake coil 20, and an operation signal from the operation circuit 23 is sent to the elevator control device. 7 can be sent. Further, the detection signal from the landing detection switch 19 shown in FIG. 1 is sent to the landing notification means 25 via the elevator control device 7 and the operation circuit 23 so that the landing of the car 4 is notified. It has become.

  Next, the operation of the present embodiment configured as described above will be described. During normal operation, the car 4 moves up and down in the hoistway 1 by controlling the hoist 2 and the brake device 9 of the elevator controller 7. However, if a power outage accident occurs while the car 4 is traveling between floors, the hoisting machine 2 stops rotating and the brake device 9 is activated to cause the car 4 to stop emergency.

  In this case, if the elevator control device 7 has a rescue operation function at the time of a power failure and the emergency battery 21 in the main control panel 6 is normally charged, the elevator control device 7 is at the time of this power failure. Based on the rescue operation function, the car 4 can be moved to the nearest floor after a predetermined time has elapsed, and the passengers in the car 4 can be rescued.

  However, when the elevator control device 7 does not have a power-saving rescue operation function, or even if the elevator control device 7 has an abnormality, or the emergency control battery 21 is not normally charged. In some cases, the brake device 9 cannot be released, so that the car 4 remains stopped between the floors even after a predetermined time has elapsed.

  In such a case, the elevator manager or the maintenance worker of the elevator maintenance company that has been contacted by the elevator manager carries the portable elevator operating device 12 to the vicinity of the outlet member 10 disposed at the landing on the reference floor. The plug member 16 is coupled to the outlet member 10. Here, the control room where the elevator manager is resident is often installed on or near the standard floor, and the floor where the maintenance workers who enter the building from outside reach the earliest is the standard floor. is there. Therefore, the elevator manager or maintenance worker can quickly couple the plug member 16 of the portable elevator operating device 12 to the outlet member 10.

  Next, the elevator manager or maintenance worker performs the following operation using the operation circuit 23 of the portable elevator operating device 12.

  First, when the elevator control device 7 does not have a power-saving rescue operation function, or when the elevator control device 7 has an abnormality, the on / off switch 24 is repeatedly turned on and off. . As a result, the current supply from the battery 14 to the brake coil 20 is interrupted, and the brake holding operation and the release operation of the brake device 9 are repeated, so that the car 4 can be moved closer to the nearest floor while being moved little by little. Whether the car 4 descends or rises at this time is determined by the weight balance between the car 4 and the counterweight 5. If there is a certain weight difference between the two, the brake device 9 The car 4 can be moved by the opening operation.

  When the car 4 approaches the nearest floor, the landing detection switch 19 eventually detects the landing detection plate 18. This detection signal is input to the operation circuit 23 via the elevator controller 7, and the operation circuit 23 arrives at the landing notification means 25 based on the input landing detection signal and the car 4 has landed on the nearest floor. Let them know. This notification operation is, for example, a lighting operation of an indicator lamp or a buzzer. The elevator manager or maintenance worker can know the arrival of the car 4 at the landing position and the optimal timing for stopping the movement by the notification operation of the landing notification means 25.

  Second, if the elevator controller 7 has a normal power failure rescue operation function, but the emergency car 21 is not normally charged and the car 4 remains stopped, the elevator management An operator or a maintenance worker turns on the closing switch 24 by the operation circuit 23 and outputs a rescue operation command at the time of a power failure to the elevator control device 7.

  Then, since the current is supplied from the battery 14 to the brake coil 20 by turning on the closing switch 24 and the brake device 9 is released, the elevator control device 7 controls the hoisting machine 2 based on the rescue operation function at the time of power failure. Car 4 can be landed on the nearest floor. At this time, since the landing notification means 25 performs a notification operation based on the detection of the landing detection switch 19, the elevator manager or the maintenance worker may turn off the closing switch 24 after confirming this notification operation. As a result, the current supply from the battery 14 to the brake coil 20 is cut off, and the brake device 9 enters the brake holding state again.

  By the way, in the above first case, since the weight balance between the car 4 and the counterweight 5 is broken, the car 4 can be moved by opening the brake device 9. However, when the weight between the two is in a balanced state, the car 4 continues to stop even if the brake device 9 is released.

  In such a case, the maintenance worker carries the portable elevator controller 12 from the landing on the upper floor at the stop position of the car 4 and gets on the roof of the car 4, and couples the plug member 16 to the outlet member 17. I will let you. Then, the on / off of the closing switch 24 is repeated in the same manner as already described in the first case. Then, since the maintenance worker gets on the roof of the car 4, the weight balance between the car 4 and the counterweight 5 is lost (the weight on the car 4 side increases). Car 4 begins to descend. Therefore, the passenger car 4 can be rescued by moving the passenger car 4 to the nearest floor below.

  As described above, according to the configuration of the present embodiment shown in FIGS. 1 and 2, the outlet members 10 and 17 that are connection terminal members are disposed on the reference floor of the building, the roof of the car 4, and the like, Since the plug member 16 of the portable elevator operating device 12 in which the battery 14 is incorporated is connected to these outlet members, the brake device 9 or the elevator control device 7 is manually operated. The brake device 9 can be opened easily and reliably without assuming the use of the emergency battery 21 in the vehicle 6, and the passengers in the car 4 can be rescued quickly.

1 is an overall configuration diagram of a machine room-less elevator system according to an embodiment of the present invention. The circuit diagram which shows the principal part structure of the machine room less elevator system of FIG.

Explanation of symbols

1: hoistway 2: hoisting machine 3: main rope 4: car 5: counter weight 6: main control panel 7: elevator control device 8: tail cord 8a: power cable 8b: control cable 9: brake device 10: outlet Member (connection terminal member)
11: Cable 11a: Power cable 11b: Control cable 12: Portable elevator controller 13: Main body 14: Battery 15: Cable 15a: Power cable 15b: Control cable 16: Plug member 17: Outlet member (connection terminal member)
18: landing detection plate 19: landing detection switch 20: brake coil 21: emergency battery 22: closing switch 23: operation circuit 24: closing switch 25: landing notification means T1, T2: terminals

Claims (5)

A hoisting machine brake device disposed at the top of the hoistway;
A main control panel disposed in a hoistway and having an elevator control device for controlling the hoisting machine and the brake device;
A connection terminal member connected to the brake device and the elevator control device via a cable member, and disposed at a predetermined location outside the main control panel;
A portable elevator operator having a battery capable of accumulating electric power sufficient to open at least the brake device for manually operating the brake device or the elevator control device in a state of being connected to the connection terminal member. When,
A machine room-less elevator system comprising: The predetermined place where the connection terminal member is disposed is a landing on a reference floor,
The machine room-less elevator system according to claim 1. The predetermined place where the connection terminal member is disposed is on the roof of the car.
The machine room-less elevator system according to claim 1. The portable elevator controller is capable of causing the elevator control device to perform a rescue operation during a power failure.
The machine room-less elevator system according to claim 1. A landing detection plate is disposed at the landing position of the car in the hoistway, and a landing detection switch for detecting the landing detection board is attached to the car.
The portable elevator operator is provided with landing position notifying means for notifying that the car has reached the landing position based on the landing detection signal from the landing detection switch.
The machine room-less elevator system according to claim 1.

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