JP4387522B2 - Elevator equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator apparatus that takes into account space saving and effective use of a hoistway.
[0002]
[Prior art]
In general, in an elevator apparatus, a machine room is provided on the roof of a building, and a drive device, a control device, and the like that drive an elevator car and a counterweight are moved up and down in the machine room. However, when the machine room is provided on the roof of the building in this way, there are problems in appearance, and there are problems that the cost of the building is increased by providing a special space as the machine room.
[0003]
Therefore, many elevator devices that do not require a machine room have been proposed in recent years. Among them, the method of installing the elevator control device at the lowermost part of the hoistway is an effective means on the route of the electric wire when the drive motor is installed in the pit portion. In addition, as described in Japanese Patent Publication No. 7-37308 (Japanese Patent No. 20000883), the elevator control device is divided into a main control panel and an attached control panel in consideration of the maintenance and inspection work of the elevator device. A method of dividing and arranging near the landing on the lower floor has also been proposed.
[0004]
Further, Japanese Patent Laid-Open No. 10-231074 discloses a method of providing an inspection port in a car and performing maintenance and inspection of equipment installed in the hoistway from the car. Japanese Laid-Open Patent Publication No. 11811 discloses a method of automatically moving a car to a position where the equipment is installed in order to perform maintenance and inspection of the equipment installed in the hoistway from within the car.
[0005]
That is, FIG. 5 is a diagram showing a schematic configuration of an elevator apparatus in which a control device and a drive mechanism are disposed in the hoistway. In the hoistway 1, a drive mechanism provided at the bottom of the hoistway 1 A car 3 that is driven up and down by 2 is disposed. On the inner wall surface of the hoistway 1, an elevator control device 4 and other tower equipment 5 are provided. On the other hand, an inspection door 6 is provided in the car 3.
[0006]
At the time of maintenance inspection, the operation unit 7 in the car 3 is operated to raise or lower the car 3 and stop at the position of the equipment 4 or 5 to be inspected, and then the inspection door 6 is opened. Perform maintenance and inspection work.
[0007]
[Problems to be solved by the invention]
However, in the case where the drive mechanism is disposed at the bottom of the hoistway 1 as described above, and the control device is also provided at the lowermost part of the hoistway, waterproofing measures are taken when the pit is flooded due to rain or the like. is necessary. In addition, it is dangerous to raise and lower the car 3 positioned above during inspection work in the pit. Furthermore, in the event of a power outage or failure of the control device, if the brake remote control function is not provided in the vicinity of the landing, it will not be possible to raise and lower the car and workers will not be able to move within the hoistway. There is.
[0008]
The apparatus shown in FIG. 5 does not require any work in the pit, and is designed to perform maintenance and inspection of the control device and the like from inside the car, and the inspector travels while in the car. However, there is a danger if a failure occurs when the car is moved to the installation position of the control device, etc. by operation in the car, or when returning to the landing position after maintenance / inspection work. Sometimes. Furthermore, when an accident such as an accident or a health condition deterioration occurs in the worker, there is a problem that the discovery may be delayed.
[0009]
In view of these points, the present invention easily moves the car to a predetermined position manually when the elevator cannot be automatically moved due to a failure of the elevator control device, etc. The purpose of the present invention is to obtain an elevator apparatus that can easily and safely perform maintenance and inspection of a control device installed in a hoistway.
[0010]
[Means for Solving the Problems]
The invention according to claim 1
A car and a counterweight, which are suspended by a hoisting rope wound around a hoisting machine sheave disposed in the hoistway, and moves up and down in the hoistway;
A brake release operation device provided at a landing on a predetermined floor, which allows the elevator to be lifted and stopped by releasing a brake of the hoisting machine sheave by manual operation of an operator;
A height position corresponding to the landing on the predetermined floor so that a worker who has entered the upper surface of the car stopped so that the upper surface matches the floor of the landing on the predetermined floor can perform maintenance and inspection work. And a control device supported in the hoistway,
Detecting means for detecting that the upper surface of the car is in line with the floor of the predetermined floor;
Informing means provided in the vicinity of the brake release operation device for notifying that the upper surface of the car is in contact with the floor of the predetermined floor based on a signal from the detecting means;
It is characterized by having.
[0011]
The invention according to claim 2 is characterized in that, in the invention according to claim 1, the brake release operation device is disposed at a landing on the uppermost floor which is the landing on the predetermined floor.
[0012]
The invention according to claim 3 is the invention according to claim 1 or 2, characterized in that the detection means is a proximity switch provided in a hoistway.
[0013]
Furthermore, the invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the detecting means takes out car position data from the car position detecting means in the hoistway, and stores the floor data in the control device. It is a device to compare with.
[0014]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, characterized in that the notification means is an acoustic means or an optical means.
[0015]
The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the detection means and the notification means are driven by a backup power source.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0017]
FIG. 1 is a diagram showing a schematic configuration of elevator installation according to the first embodiment of the present invention, and is suspended in a hoistway 10 by a suspension rope 12 wound around a hoisting machine sheave 11. The car 13 and the counterweight 14 are disposed, and the car 13 and the counterweight 14 are alternately raised and lowered by the rotation of the hoisting machine sheave 11.
[0018]
On each floor of the building, landing floors 15a, 15b... Where passengers get on and off the car 13 are provided, and landing doors 16 are provided on the landing floors 15a, 15b. The elevator control device 18 is mounted on the inner wall surface of the hoistway 10 by the support members 17a and 17b at a position corresponding to the landing floor on a specific floor, for example, the landing floor 15a on the top floor, among the landing floors 15a, 15b. Yes.
[0019]
The elevator control device 18 has a thin shape, and is installed so as to keep the necessary safety distance in the horizontal direction without hindering the elevator 13 and the counterweight 14 from moving up and down. The elevator control device 18 can be adjusted and maintained by opening the front cover of the elevator control device 18.
[0020]
Further, in the hoistway 10, for example, a proximity switch such as a proximity switch that detects that the upper surface of the car 13 substantially coincides with the floor level of a landing floor on a specific floor, for example, the uppermost landing floor 15 a. A detection device 19 is provided. The proximity switch has both a light emitting function and a light receiving function for an optical signal, and detects arrival of the car 13 by receiving light with a reflector provided on the car 13.
[0021]
On the other hand, a brake release operation device 20 for releasing the brake of the hoisting machine sheave 11 is provided in the vicinity of an operation panel on a predetermined landing floor, for example, the uppermost landing floor 15a, and the brake release operation device 20 is further provided. Is an alarm 21 such as a buzzer that informs the operator that the upper surface of the car 13 has substantially coincided with the floor level of the floor of the top floor by a signal from the detection device 19 such as the proximity switch. Is provided.
[0022]
Thus, when the elevator control device fails, the worker goes to a predetermined landing floor where the brake release operation device 20 is provided, and the brake release operation device 20 is operated on the spot to release the brake. Is moved by the balance difference between the car 13 and the counterweight 14. Here, if the car 13 is heavier, the car 13 is lowered to the nearest floor, the operation of the brake release operation device 20 is stopped, and the car 13 is stopped. When the passenger gets off at the nearest floor, the counterweight 14 becomes heavier, so that the car 13 can be raised by operating the brake release operation device 20 again. Therefore, when the car 13 moves to the top floor landing floor 15a and reaches the position where the upper surface of the car 13 substantially coincides with the floor level of the top floor landing floor 15a, as shown by a two-dot chain line in FIG. The position is detected by the detection device 19, and the alarm 21 is activated by the position detection. Therefore, when the alarm 21 is activated, the operation of the brake release operation device 20 is stopped and the movement of the car 13 is stopped. The detection device 19 and the alarm device 21 are controlled by an auxiliary control device provided in the elevator control device 18 separately from the main circuit control device, and are driven by a backup power source.
[0023]
Subsequently, the landing door 16 on the top floor is opened, and the worker gets on the top surface of the car 13 that has stopped immediately from the landing on the top floor. And the front cover of the elevator control apparatus 18 provided in the height position corresponding to the landing floor 15a of the top floor is opened, and work such as inspection of the elevator control apparatus 18 is performed.
[0024]
Thus, in the present embodiment, the target position of the car 13 moved by the brake release operation device 20 is set to the floor level where the brake release operation device 20 is installed, and the installation position of the elevator control device 18 is the same floor. Because it is in a position corresponding to the landing floor 15a, the worker can get on the upper surface of the car 13 without moving on the floor at the time of maintenance / inspection, and maintenance / inspection without moving the car 13 after getting on Work can be done. Further, after the work, the user can immediately go to the landing from the hoistway 10.
[0025]
Further, while the worker is working on the upper surface of the car 13, the work is performed with the landing door 16 being opened. Therefore, the lighting of the landing can illuminate the car 13 in the hoistway 10 and can safely move on the upper surface of the car 13. In addition, even when an accident such as an accident or an unforeseen accident such as a deterioration of the health condition occurs, the possibility of the discovery being delayed can be reduced. Further, while the worker is working in the hoistway 10, the car does not move up and down at all, so the work can be performed extremely safely.
[0026]
FIG. 2 is a schematic configuration diagram showing a reference example of the present invention, and the elevator control device 18 is provided at a height position corresponding to a landing floor 15b on a specific floor such as an intermediate floor instead of the top floor. A detecting device 19 such as a proximity switch is provided near the floor level of the landing floor 15b to detect that the upper surface of the car 13 substantially matches the floor level. Others are the same as those shown in FIG.
[0027]
Therefore, in this embodiment, when a failure or the like of the control device occurs, an operator manually operates the brake release operation device 20 to release the brake and move the car 13. Therefore, when the car 13 moves to the landing floor 15b of a specific floor on the intermediate floor and reaches the position where the upper surface of the car 13 substantially coincides with the floor level of the landing floor 15b, the position is detected by the detecting device 19. Is detected, and the alarm device 21 is activated by detecting the position. Therefore, if the car 13 is stopped, it is possible to easily get on the upper surface of the car 13 from the landing floor 15b, and the maintenance and inspection of the elevator control device 18 can be easily performed using the upper surface of the car 13 as a scaffold. it can. Further, by providing the alarm 21 such as a buzzer, the worker can surely hear the arrival of the car at the target position audibly and reliably.
[0028]
In the above-described embodiment, the brake release operation device 20 is provided near the elevator floor on the top floor as a specific floor, but it is provided near a predetermined elevator platform other than the elevator floor on the top floor. Also good.
[0029]
Further, it is only necessary for an operator to get on the upper surface of the car 13 from the landing floor 15a or 15b, and it is not always necessary to stop the upper surface of the car 13 at a position corresponding to the floor level.
[0030]
FIG. 3 is a view showing another embodiment of the present invention, and a pulse transmitter 22 for detecting a car position is provided in the hoistway 10 in place of the detecting device 19 such as a proximity switch. . This car position detection pulse transmitter 22 rotates 1: 1 with the movement of the car 13 and transmits pulses corresponding to the amount of movement. Thus, the position data consisting of this pulse signal is sent to the elevator control device, and the arrival of the car at the target position can be accurately detected by comparing the position data with the floor data in the control device. it can.
[0031]
Therefore, the alarm such as the buzzer can be activated by this position detection. Further, as shown in FIG. 3, a lamp or LED 23 may be provided as an optical means in the vicinity of the brake release operation device, instead of an acoustic means such as a buzzer or a chime. The LED 23 emits light in response to a signal for detecting that the car has reached the target position. By using this LED, the arrival of the car at the target position can be visually confirmed with certainty. .
[0032]
In addition, a battery 24 is provided in the elevator control device 18 as a backup power source for a device for detecting that the car 13 has reached the target position and a device for receiving a detection signal and notifying an operator. Also good.
[0033]
FIG. 4 is a diagram showing still another reference example of the present invention, and detects that the upper surface of the car 13 matches a specific floor, for example, the top floor, without using a detection device, an alarm, and a power source. Therefore, a marking 25 is provided on the suspension rope 12 above the car 13.
[0034]
In this case, while the car 13 is moving, an operator opens the landing door 16 or releases the brake while viewing the suspension rope 12 from the peep hole 26. When the marking 25 is detected, the brake release operation device 20 is released and the car 13 is stopped. Therefore, in this embodiment, there is no need for a device for detecting the position of the car 13, a device for notifying an operator of the detection, and their power supply, and the car 13 is located on a landing floor on a specific floor. Can be confirmed.
[0035]
【The invention's effect】
Since the present invention is configured as described above, the maintenance and inspection can be easily performed without providing the elevator control device at the lowermost part in the hoistway, and there is no need for countermeasures against flooding. In addition, when the elevator cannot be moved automatically due to a failure of the elevator control device, etc., the brake can be released manually, and the car can be easily stopped at a predetermined position, allowing the worker to move on the car. You can get in and take maintenance check of the elevator controller in the hoistway. In addition, safety can be improved because the car is not raised or lowered to the installation position of the elevator control device in the state where the worker is in the pit or the car. In addition, in the case where the car is stopped at the landing floor level corresponding to the position where the elevator control device is provided, the car is moved after the car is moved to the target position. Maintenance and inspection work can be carried out without any risk of erroneous operation, and safety can be further improved.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of an elevator apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing a schematic configuration of an elevator apparatus according to a reference example of the present invention.
FIG. 3 is a diagram showing a schematic configuration of an elevator apparatus according to another embodiment of the present invention.
FIG. 4 is a diagram showing a schematic configuration of an elevator apparatus according to still another reference example of the present invention.
FIG. 5 is a diagram showing a schematic configuration of a conventional machine room-less elevator device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Hoistway 11 Hoisting machine sheave 12 Hanging rope 13 Car 14 Balance weights 15a, 15b, 15c Landing floor 18 Elevator control device 19 Detection device 20 Brake release operation device 21 Notification device 22 Pulse transmitter 23 LED
24 Battery 25 Marking

Claims (6)

A car and a counterweight, which are suspended by a hoisting rope wound around a hoisting machine sheave disposed in the hoistway, and moves up and down in the hoistway;
A brake release operation device provided at a landing on a predetermined floor, which allows the elevator to be lifted and stopped by releasing a brake of the hoisting machine sheave by manual operation of an operator;
A height position corresponding to the landing on the predetermined floor so that a worker who has entered the upper surface of the car stopped so that the upper surface matches the floor of the landing on the predetermined floor can perform maintenance and inspection work. And a control device supported in the hoistway,
Detecting means for detecting that the upper surface of the car is in line with the floor of the predetermined floor;
Informing means provided in the vicinity of the brake release operation device for notifying that the upper surface of the car is in contact with the floor of the predetermined floor based on a signal from the detecting means;
The elevator apparatus characterized by having.   The elevator apparatus according to claim 1, wherein the brake release operation device is arranged at a landing on a top floor that is a landing on the predetermined floor.   The elevator apparatus according to claim 1 or 2, wherein the detection means is a proximity switch provided in a hoistway.   The said detection means is an apparatus which takes out car position data from the car position detection means in a hoistway, and compares it with floor data within a control apparatus. Elevator device.   The elevator apparatus according to any one of claims 1 to 4, wherein the notification means is an acoustic means or an optical means.   The elevator device according to any one of claims 1 to 5, wherein the detection unit and the notification unit are driven by a backup power source.

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