JP2004067295A - Hoisting device of elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To install an elevator control device in the elevator pit, check it in the installed state, and avoid the influence due to entry of water into the pit. <P>SOLUTION: The elevator control device 1 is usually hanged and provided on the inspectable position in the elevator pit 4 using the wire 6 from the hoisting machine 5. Though the water immersion due to rain in the pit becomes problem in this case, a water immersion sensing means 8 sensing the water immersion in the pit before the water immersion reaches the control device in the pit, is provided, and sends out water immersion sensing signal when sensing the water immersion. When the water immersion signal is received, a required power is supplied from a power source 9 to the hoisting machine 5, the control device is hoisted to a predetermined height, the power supply is cut off, and the brake force is given to the hoisting machine 5 to fix it. Therefore, the control device is prevented from occurring failure or the like by hoisting the control device to the predetermined height in the case of the water immersion in the pit. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator control device pulling device for lifting an elevator control device installed in an elevator pit.
[0002]
[Prior art]
Generally, an elevator is provided with a machine room above a hoistway, and a hoist and an elevator controller are installed in the machine room. In recent years, a hoist and an elevator controller have been installed inside a hoistway. A machine room-less system in which a machine room above a hoistway is eliminated has been adopted.
[0003]
Ideally, in this machine roomless system, it is desirable to install an elevator control device in the pit.However, flooding of the pit by rainwater may cause a failure of a very important elevator control device, so At present, the control device is installed at a position higher than the lowest floor landing position of the hoistway avoiding the installation.
[0004]
[Problems to be solved by the invention]
However, as described above, when the control device is installed at a position higher than the lowest floor landing position, the control device is moved up and down into the pit at every inspection, and the elevator control at a high position more than 2 m above the pit floor is performed. Inspection tables and the like that can be inspected for the equipment are installed, and inspections and other operations are performed.
[0005]
As a result, when the former elevator control device is dropped into the pit, it is necessary to drop the elevator control device at regular inspections and for each failure, so that the maintenance and inspection work is very complicated. In addition, a suspension mechanism must be prepared for each periodic inspection, or a dedicated suspension mechanism must be installed. Furthermore, since the wiring is raised and lowered at each inspection, the wiring connected to the control device must be made firmly in order to move freely.
[0006]
On the other hand, when performing inspection work using the latter check table, it is necessary to go up to a high check table to carry out the work, and there is always the danger of working at heights, the work environment is poor, and there is a problem in terms of work efficiency. There is.
[0007]
Further, in a case where a control device is installed at a position higher than the lowest floor landing position, there is a problem that the beauty of the elevator is impaired.
[0008]
The present invention has been made in view of the above circumstances, and an elevator control device is installed in a pit so that an inspection work can be performed without raising or lowering the inspection and a check table is required, and when the pit is flooded, It is an object of the present invention to provide an elevator control device pulling device that avoids inundation in an elevator.
[0009]
[Means for Solving the Problems]
(1) In order to solve the above problems, an elevator control device pulling device according to the present invention is set at a position where inspection is possible in an elevator pit, and controls an elevator car to lift and lower the elevator car. A lifting mechanism for suspending the device at the checkable position, a flood detecting unit for detecting flooding before reaching the control device in the pit, and a flood detecting signal from the flood detecting unit for a predetermined time. And a drive unit for supplying power to the pulling mechanism and pulling up the control device to a predetermined height position.
[0010]
Since the present invention is configured as described above, the elevator control device is suspended at a position where it can be inspected at all times, so that the inspection work can be performed with the installation state as it is at the time of inspection, and the pit is entered by rainwater or the like. When the inside is flooded, the flood sensing means detects flooding and sends out a flood sensing signal, so the drive means supplies power to the lifting mechanism and raises it to a predetermined height position, for example, higher than the lowest floor landing position. Thus, it is possible to reliably avoid flooding, and thus to prevent a failure of the control device due to flooding.
[0011]
(2) An elevator control device pulling device according to the present invention is provided at an inspectable position in an elevator pit, the elevator control device for controlling the elevation of an elevator car, and one end of a wire hung in a slidable manner. A control device is suspended, and a counterweight of approximately the same weight or light weight as the control device is suspended from the other end of the wire, and a pull-up that normally sets the elevator control device to the inspectable position. A mechanism, flood sensing means for sensing flooding before reaching the control device in the pit, and when receiving a flood sensing signal from the flood sensing means, supplies power to the pulling mechanism and adjusts the weight of the counterweight. A driving means for lifting the control device to a predetermined height position by utilizing a weight is provided.
[0012]
According to the present invention having the above-described configuration, in addition to the operation and effect obtained by the configuration (1), the control device is hung on one end side of the wire laid in a slidable manner, and Since the counterweight, which is almost the same weight or light weight as the control device, is suspended at the other end, power is supplied by the driving means and the weight of the counterweight is used to raise the control device when the pit is flooded. It is possible to raise the control device to a predetermined height position.
[0013]
(3) The elevator control device pulling device according to the present invention is provided at an inspectable position in the elevator pit, and controls the elevator car to lift and lower the elevator car. A control device is suspended, and a counterweight having a higher weight than the control device is suspended on the other end side of the wire, and the elevator control device can be inspected in a state where braking force is normally applied. A lifting mechanism to set a proper position, flood detection means for detecting flood before reaching the control device in the pit, and when receiving a flood detection signal from the flood detection means, release the braking force and balance the Means for raising the control device to a predetermined height position by utilizing the weight of the weight.
[0014]
According to the present invention having the above-described configuration, in addition to the operation and effect obtained by the above-described configuration (1), the braking force of the pulling-up mechanism is reduced when a flood detection signal is received from the flood detection means when the pit is flooded. Since the control device is released, the control device can be easily pulled up to the predetermined height position only by the weight of the counterweight, and the control device can be pulled up with less electric power.
[0015]
In addition, if a cushioning member is provided at a predetermined position directly below the counterweight, even when the braking force is released and the counterweight of the weigh platform suddenly drops, the sudden drop of the counterweight is suppressed, and the impact is reduced. It is possible to raise the control device to a predetermined height position.
[0016]
Further, in addition to the above-described configuration, for example, if a position detecting unit that detects that the control device has been pulled up to the predetermined height position is provided, the control device can be reliably pulled up to the predetermined height position. .
[0017]
(4) Further, an elevator control device pulling device according to the present invention is provided in an elevator pit, and has a fixing device having an opening at an intermediate portion for setting the elevator control device for controlling the elevation of the elevator car to a position where inspection is possible. One end faces the elevator control device via the opening of the fixing device, and the other end pushes up the elevator control device at one end to a predetermined height position via a transmission medium when receiving a pressing force. A cylinder mechanism, a support member which is normally disposed on the other end side upper portion of the cylinder mechanism and suspends a weight having a predetermined weight, a flood detecting means for detecting flood before reaching a control device in the pit, A means for separating the weight from the support member and applying a pressing force to the other end side of the cylinder mechanism when receiving a flood detection signal from the flood detection means. It is a configuration provided.
[0018]
The present invention is configured as described above, and receives a flood detection signal from the flood detection means at the time of flooding in the pit, disconnects the weight from the support member and applies a pressing force to the other end side of the cylinder mechanism, so that transmission is performed. The elevator control device can be pushed up to a predetermined height position by the one end arm of the cylinder mechanism through the medium.
[0019]
(5) Further, in addition to the above configuration, the elevator control device pulling device according to the present invention may further include, when receiving an inundation detection signal from the inundation detection means, a floor landing command for the elevator car at a predetermined floor. Means for prompting passengers to get off the car after landing on the predetermined floor, and when receiving a signal regarding confirmation of car getting off from the control device, supplies power to the pulling mechanism and raises the control device. Means, by detecting that the control device has been raised to a predetermined height position, and by providing position detection means for shutting off the power supplied to the lifting mechanism, after lowering the passenger to a safe floor, Since the control device is raised to a predetermined height position, passenger safety and elevator reliability can be improved.
[0020]
Further, in addition to the above configuration, after the control device is pulled up to a predetermined height position based on a detection signal from the position detection device and stopped, a device for restarting the operation of the elevator car via the control device is provided. Thus, even when the pit is flooded, the elevator car can be operated using the safe floor, and the influence of the flooding can be minimized.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0022]
FIG. 1 is a configuration diagram showing an embodiment of an elevator control device pulling-up device according to the present invention.
[0023]
In FIG. 1, reference numeral 1 denotes an elevator control device for controlling the elevation of the elevator car 2, which is installed in an elevator pit 4 formed below the lowest floor landing position 3. Reference numeral 5 denotes a pull-up mechanism for winding up a wire 6 connected to the elevator control device 1, and the pull-up mechanism 5 is provided with a brake 7. Reference numeral 8 denotes a flood detector, which is provided below the elevator control device 1 and has a function of outputting a flood detection signal when the pit is flooded to a predetermined level due to entry into the pit 4 such as rainwater. Reference numeral 9 denotes a power source for supplying electric power to the pulling mechanism 5. The output side of the power source 9 is connected to the pulling mechanism 5 and the brake 7 via a switch circuit 10 with a timer. The switch circuit with a timer 10 has a function of turning on when receiving a flood detection signal from the flood detector 8 and automatically turning off after a predetermined time has elapsed.
[0024]
The power source 9, the switch circuit with a timer 10 and the like have a role of driving the pulling mechanism 5.
[0025]
Next, the operation of the elevator control device pulling device having the above configuration will be described.
[0026]
When rainwater or the like enters the pit 4 due to heavy rain or the like and the amount of inundation reaches a predetermined amount, the inundation detector 8 detects that the elevator control device 1 is in an inundation state, and switches the inundation detection signal with a timer. Send to circuit 10. The switch circuit 10 is turned on upon receiving a flood detection signal from the flood detector 8 and starts a timer time measurement operation. When the switch circuit 10 is turned on, predetermined power is supplied from the power source 9 to the pulling mechanism 5 including the brake 7.
[0027]
As a result, the brake 7 which normally applies the braking force to the pulling mechanism 5 is released, and the pulling mechanism 5 starts the pulling drive and winds up the wire 6 so that the elevator control device 1 is moved to the lowest floor landing position. It is raised to a predetermined position higher than 3. At this time, the timer-equipped switch circuit 10 measures the time after the ON operation, and when the predetermined time is exceeded, automatically turns OFF and cuts off the power supply line from the power source 9 to the pulling mechanism 5. Simultaneously with the interruption of the power supply line, the braking force of the brake 7 is applied, and the rotation of the pulling mechanism 5 stops.
[0028]
Therefore, according to the above-described embodiment, since the elevator control device 1 is always installed in the pit 4, it is possible to perform maintenance and inspection with the installation state as it is at the time of inspection, and the inspection work becomes very easy. .
[0029]
Further, when the rainwater enters the pit 4, the lifting mechanism 5 automatically starts the lifting drive and raises the elevator control device 1, so that the control device 1 can be prevented from being flooded without requiring any manual operation. The failure of the control device 1 can be prevented.
[0030]
Further, in the case of an observation elevator installed outdoors, there is a particular problem of flooding. However, by installing the elevator control device 1 in the pit 4, an elevator having an excellent appearance when viewed from the outside can be constructed.
[0031]
Further, at the time of inspection, maintenance of the entire elevator including the elevator control device 1 can be performed in a state where the elevator is installed in the pit, so that danger at the time of inspection work can be easily avoided.
[0032]
FIG. 2 is a configuration diagram showing another embodiment of the elevator control device pulling-up device according to the present invention. Note that, in the figure, the same components as those in FIG. 1 are denoted by the same reference numerals, and will be described with reference to FIG.
[0033]
The present invention is particularly different from the pulling position detector 11, which is provided at a required position higher than the lowest floor landing position 3 and detects that the elevator control device 1 has been pulled up to a predetermined height. A power supply disconnection switch circuit provided in a power supply line to the power supply 5 for automatically shutting off the power supply line when a detection signal is received from the lifting position detector 11 and applying a braking force by the brake 7 to the lifting equipment 5. 12 are provided.
[0034]
When the flood detection signal “1” of the flood detector 8 and the undetected signal “1” of the pulling position detector 11 are turned on, the switch circuit 10 is turned on, and the flood detection signal “1” of the flood detector 8 is pulled up. When the detection signal of the position detector 11 is "0", if a logical condition signal for turning off the switch circuit 10 is sent to the switch circuit 10, there is no power-off switch circuit 12, that is, only the switch circuit 10 Thus, the same operation can be realized.
[0035]
Therefore, according to the above configuration, in addition to the operation shown in FIG. 1, when the elevator control device 1 is being pulled up by using the pulling-up mechanism 5, the control device 1 has a predetermined height higher than the lowest floor landing position. , A position detection signal is sent from the pull-up position detector 1 to the power-off switch circuit 12. When the power-off switch circuit 12 receives the position detection signal, it automatically shuts off the power supply line. Therefore, the power from the power source 9 is cut off, and at the same time, the brake 7 operates to stop the rotation of the pulling mechanism 5. .
[0036]
Therefore, according to the above-described embodiment, in addition to the effect of the pulling device shown in FIG. 1, the control device 1 can be reliably pulled up to a required position when the pit 4 is flooded. Since the power is cut off soon after the power is raised, safety and reliability are improved.
[0037]
FIG. 3 is a configuration diagram showing still another embodiment of the elevator control device pulling-up device according to the present invention. In the figure, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted.
[0038]
What is particularly different in the present invention is that the elevator control device 1 is suspended at one end of a wire 6 laid over the lifting mechanism 5, and the other end of the wire 6 is approximately the same as or lighter than the weight of the elevator control device 1. A counterweight 21 is suspended.
[0039]
According to such a configuration, in addition to the effects similar to those of FIGS. 1 and 2 described above, since the elevator control device 1 and the counterweight 21 are set to approximately the same weight, the power is supplied from the power source 9. Only a small amount of electric power is required, and the elevator control device 1 can be raised to a predetermined height position by the small-sized and small-capacity power source 9.
[0040]
FIG. 4 is a configuration diagram showing still another embodiment of the elevator control device pulling-up device according to the present invention. In the figure, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof will be omitted.
[0041]
This elevator control device pulling device is provided with a signal processing device 31 that performs a predetermined process while cooperating with each output of the elevator control device 1, the immersion sensor 8 and the position detector 11 in a different point. It is in. Reference numeral 32 denotes an elevator driving hoist, and reference numeral 33 denotes an elevator car counterweight. Since the signal processing device 31 executes necessary processing as described later, a switch circuit without a timer is used as the switch circuit 10.
[0042]
This signal processing device 31 executes one of the processes shown in FIGS.
[0043]
(1) One processing example will be described with reference to FIG.
[0044]
First, the signal processing device 31 determines whether rainwater or the like has flooded the pit 4 (S1). If the inside of the pit is in a flooded state of a predetermined amount, a flooding detection signal is received from the flooding detector 8, so that the inside of the pit and, consequently, the control device 1 determines that there is a risk of flooding. If no flood detection signal is received from the flood detector 8, it is determined that there is no flood, and the presence or absence of flood is repeatedly determined at predetermined intervals.
[0045]
In step S <b> 1, when it is determined that the inside of the pit is flooded by a required amount, the signal processing device 31 sends a service floor landing command, which is a safe place for the control device 1, to the control device 1. Upon receiving the service floor landing command from the signal processing device 31, the elevator control device 1 controls the drive of the elevator car hoisting machine 32, and causes the elevator car 2 to land on the service floor (S2). At the same time as the landing of the car, the system notifies the passengers of guidance such as turning on the indicator light for turning off the car on the service floor, turning off the light in the car, and announcing a message (S3). Passengers descend from the elevator car 2 to the service floor according to the guidance and the like.
[0046]
Usually, the car door of the elevator car 2 opens, and the passenger gets off in about 15 seconds including the guidance and guidance, so the car door closes. Therefore, after receiving a car door closing signal, a door non-opening signal from a door opening button, or a predetermined time exceeding 15 seconds, when the control device 1 receives an exit completion instruction, the signal processing device 31 causes the flooding sensor 8 to flood. A signal based on the sensing signal is sent to the switch circuit 10.
[0047]
Here, the switch circuit 10 is turned on when receiving the inundation detection signal, supplies required power from the power source 9 to the pulling mechanism 5 and the brake 7, and the pulling mechanism 5 is rotationally driven by opening the brake 7, The elevator control device 1 is pulled up by rotating in the pulling-up direction (S4).
[0048]
Then, when the elevator control device 1 is pulled up to a predetermined height position, the position detector 11 operates and sends a position detection signal. Upon receiving the position detection signal, the signal processing device 31 determines that the control device pulling is completed (S5), and completes the pulling operation. That is, the signal processing device 31 sends an off operation command to the switch circuit 10 and shuts off the power supply line.
[0049]
Therefore, by executing a series of processes as described above, the same effects as in the above-described embodiments can be obtained, and when the inside of the pit is flooded, the elevator car 2 can be landed on a safe service floor. After the passengers in the car are lowered, the elevator car 2 is stopped, and after ensuring the safety of the passengers, the elevator control device 1 is raised to a predetermined height position. Therefore, there is no concern that the passengers may be trapped or injured. In addition, the passengers in the car 2 can be safely and securely lowered, and a more reliable elevator can be realized.
[0050]
(2) Another processing example will be described with reference to FIG.
[0051]
In this processing example, the same processing as that of FIG. 5 is executed in steps S1 to S5, but when the elevator control device 1 is pulled up to a predetermined height position and the lifting is completed, an operation service at the time of pit flooding is executed. (S6). The driving service at the time of flooding the pit includes a method of performing the same operation as in a normal case and a method of performing an operation for disabling the lowest floor landing service.
[0052]
Therefore, according to the above-described embodiment, in addition to the same effects as those of the above-described embodiments, the elevator operation between the safety floors is continued despite the inundation in the pit. Since the elevator car 2 is operated using the elevator car, it is possible to use the passenger while minimizing the influence.
[0053]
FIG. 7 is a configuration diagram showing still another embodiment of the elevator control device lifting device according to the present invention. In the figure, the same components as those in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof will be omitted. Further, the signal processing device 31 and the like execute the same processing as in FIGS.
[0054]
The present embodiment is particularly different from the first embodiment in that a pulley 41 is provided in place of the lifting mechanism 5, the weight of the counterweight 21 is made slightly heavier than the weight of the elevator control device 1, and the weight of the counterweight 21 controls the elevator. The apparatus 1 is configured to be pulled upward. The pulley 41 is provided with a brake 42 for applying a braking force to the pulley 41.
[0055]
In this controller pulling device, when the flood detector 8 detects a predetermined flood condition in the pit, it sends a flood detection signal to the signal processor 31. The signal processing device 31 executes the same processing as that of FIG. 5 or FIG. 6 to land the elevator car 2 on a safe service floor and lower the passengers, and then sends a signal based on the flood detection signal to the switch circuit 10. The power supply line is formed by the transmission and the ON operation.
[0056]
Normally, a braking force for fixing the pulley 41 is applied to the brake 42, but when the switch circuit 10 is turned on and power is supplied from the power source 9, the brake 42 is released. As a result, since the weight of the counterweight 21 is heavier than the weight of the elevator control device 1, the elevator control device 1 is gradually pulled up by being pulled by the counterweight 21.
[0057]
When the elevator control device 1 is raised to a predetermined height position, the position detector 11 operates and sends a position detection signal. When receiving the position detection signal, the signal processing device 31 determines that the pulling of the control device 1 is completed (S5), and completes the pulling operation. That is, the signal processing device 31 sends the off operation signal to the switch circuit 10 and cuts off the power supply line.
[0058]
Therefore, according to the above-described embodiment, in addition to having the same effects as those of the above-described embodiments, when the brake 42 is released, the elevator control device 1 is pulled up by the weight of the counterweight 21, so that no elevator The elevator control device 1 can be pulled up without consuming power for pulling up the control device 1.
[0059]
FIG. 8 is a configuration diagram showing still another embodiment of the elevator control device lifting device according to the present invention according to the present invention. Note that, in the figure, the same components as those in FIGS. 1 to 4 and 7 are denoted by the same reference numerals, and description thereof will be omitted. Further, the signal processing device 31 and the like execute the same processing as in FIGS.
[0060]
This embodiment is particularly different from the first embodiment in that a sudden increase in the speed of the elevator control apparatus 1 due to the weight of the counterweight 21 is avoided, and a buffer member 51 such as a spring having a required interval immediately below the counterweight 21 is provided. When the counterweight 21 abuts on the buffer member 51 as the elevator control device 1 rises, the speed increase of the elevator control device 1 is suppressed, and the elevator control device 1 reaches a predetermined height position. Set to stop easily at the height of. The arrival of the elevator control device 1 at the predetermined height position is detected by the position detector 11 and sent to the signal processing device 31.
[0061]
Therefore, in the embodiment described above, the ON operation signal is transmitted from the signal processing device 31 in accordance with the inundation in the pit, and the pulley fixing brake 42 is supplied by the power supply of the power source 9 by the ON operation of the switch circuit 10. Is released, the elevator control device 1 is pulled toward the counterweight 21 and moves due to the imbalance between the counterweight 21 and the elevator control device 1.
[0062]
At this time, when the buffer member 51 is not present, the rising speed of the elevator control device 1 increases at an accelerated rate, but the provision of the buffer member 51 suppresses the moving speed. When the control device 1 rises to a predetermined position higher than the lowest floor landing position, the switch circuit 10 is turned off based on the position detection of the position detector 11, and the pulley 41 is fixed by the braking force of the brake 42. Therefore, not only does not consume any power for raising the elevator control device 1, but also the effect of the counterweight 21 is gradually reduced, and the elevator control device 1 is reliably stopped at a predetermined height position with a small impact. Is possible.
[0063]
FIG. 9 is a configuration diagram showing still another embodiment of the elevator control device lifting device according to the present invention according to the present invention. Note that, in the figure, the same components as those in FIGS. 1 to 4 and 7 are denoted by the same reference numerals, and description thereof will be omitted. Further, the signal processing device 31 and the like execute the same processing as in FIGS.
[0064]
In the elevator control device lifting device, a fixing device 61 is installed at a predetermined position in the pit 4, and the elevator control device 1 is mounted on the fixing device 61. Therefore, the elevator control device 1 on the fixing device 61 is always set at a position where inspection is possible. The fixing device 61 has an opening formed at a substantially central portion thereof, and a plunger 63 serving as one end arm of a cylinder mechanism 62 is provided so as to face the elevator control device 1 through the opening. The cylinder mechanism 62 is formed in a U-shape, and a plunger 64 which is the other end side arm of the cylinder mechanism 62 is set upward like the plunger 63. The cylinder mechanism 62 is configured such that the transmission medium 65 such as oil, air, or water is filled therein, and when an external force is applied to the plunger 64, the plunger 63 pushes up the elevator control device 1 via the transmission medium 65. .
[0065]
Reference numeral 66 denotes an L-shaped support member which is attached to a required position above the plunger 64 and rotates about a fulcrum. A weight 67 is suspended by the support member 66. On the other hand, an electromagnetic coil 68 is provided in the vicinity of the upper end of the support member 66, and when a required electric power is supplied, the support member 66 is attracted and the suspension of the weight 67 is released. A switch circuit with a timer 10 is interposed between the electromagnetic coil 68 and the power source 9.
[0066]
Therefore, in this embodiment, when a flood detection signal is transmitted from the flood detector 8, the signal processing device 31 executes the series of processes in FIGS. 5 and 6, and then issues an ON operation command to the switch circuit 10. The power is transmitted from the power source 9 to the electromagnetic coil 68. The electromagnetic coil 68 is excited by receiving a required electric power and attracts the upper end of the support member 66. As a result, the support member 66 rotates by a required angle about the fulcrum, and the weight 67 suspended by the claw at the lower end of the support member 66 is cut off and descends directly below. The plunger 64, which is the other end of the cylinder mechanism 62, is located immediately below the plunger 64. Therefore, the plunger 64 receives the pressing force of the descending weight 67, and the one end of the cylinder mechanism 62 Plunger 63 moves forward and lifts elevator control device 1 to a predetermined height position, so that elevator control device 1 can be protected from inundation in the pit.
[0067]
The present invention is not limited to the above-described embodiment, and can be implemented with various modifications without departing from the scope of the invention. In the above embodiment, basically, one balance weight drive system 20 is installed on the opposite side of the elevator car bottom from the hanging member mounting position with the center line of the main rope 5 interposed therebetween. The balance weight drive system 20 may be provided on both sides of the center line of the main rope 5 on the center line 32.
[0068]
Further, the embodiments can be implemented in combination as much as possible, and in that case, the effect of the combination can be obtained. Furthermore, each of the above embodiments includes various upper and lower stage inventions, and various inventions can be extracted by appropriately combining a plurality of disclosed components. For example, when an invention is extracted because some constituent elements can be omitted from all the constituent elements described in the means for solving the problem, if the extracted invention is implemented, the omitted part is omitted. Is appropriately supplemented by well-known conventional techniques.
[0069]
【The invention's effect】
As described above, according to the present invention, by installing the elevator control device in the pit, it is possible to perform maintenance and inspection work without raising or lowering at the time of inspection and also without requiring an inspection table, and when flooding in the pit An elevator control device pulling device that automatically avoids flooding can be provided.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of an elevator control device lifting device according to the present invention.
FIG. 2 is a configuration diagram showing another embodiment of the elevator control device lifting device according to the present invention.
FIG. 3 is a configuration diagram showing another embodiment of the elevator control device lifting device according to the present invention.
FIG. 4 is a configuration diagram showing another embodiment of the elevator control device lifting device according to the present invention.
FIG. 5 is a flowchart illustrating an example of a cooperative process between the signal processing device and the elevator control device illustrated in FIG. 4;
FIG. 6 is a flowchart illustrating another example of the cooperative processing between the signal processing device and the elevator control device illustrated in FIG. 4;
FIG. 7 is a configuration diagram showing another embodiment of the elevator control device lifting device according to the present invention.
FIG. 8 is a configuration diagram showing another embodiment of the elevator control device lifting device according to the present invention.
FIG. 9 is a configuration diagram showing another embodiment of the elevator control device lifting device according to the present invention.
[Explanation of symbols]
1. Elevator control device
2. Elevator car
4: Pit
5. Lifting machine
6 ... wire
7… Brake
8 ... Flood detector
9 Power source
10. Switch circuit
11 Position detector
12 Power switch
21 ... Balance weight
31 ... Signal processing device
41 ... Pulley
42… Brake
51 ... cushioning member
61 ... Fixing device
62 ... Cylinder mechanism
63, 64 ... plunger
66 ... Support member
67 ... weight
68 ... Electromagnetic coil

Claims (8)

An elevator control device that is set at a position in the elevator pit where inspection can be performed and controls elevation of the elevator car;
A pull-up mechanism that always suspends the elevator control device at the inspectable position,
Flood sensing means for sensing flooding before reaching the control device in the pit,
An elevator provided with driving means for supplying power to the pulling-up mechanism for a predetermined time when receiving the flooding detection signal from the flooding detecting means and raising the control device to a predetermined height position. Control device lifting device. An elevator control device that is set at a position in the elevator pit where inspection can be performed and controls elevation of the elevator car;
The control device is suspended at one end of a wire hung in a hanging manner, and a counterweight of approximately the same weight or light weight as the control device is suspended at the other end of the wire. A pulling mechanism for setting the elevator control device to the checkable position,
Flood sensing means for sensing flooding before reaching the control device in the pit,
When receiving a flood detection signal from the flood detection means, the driving mechanism supplies power to the lifting mechanism, and drives the control device to a predetermined height position by using the weight of the counterweight. An elevator control device pulling device, characterized in that: An elevator control device that is set at a position in the elevator pit where inspection can be performed and controls elevation of the elevator car;
The control device is suspended at one end of the wire suspended in a hanging manner, and a counterweight, which is heavier than the control device, is suspended at the other end of the wire. A pulling mechanism that sets the elevator control device to the inspectable position in a given state;
Flood sensing means for sensing flooding before reaching the control device in the pit,
Means for releasing the braking force and using the weight of the counterweight to raise the control device to a predetermined height position when receiving a flood detection signal from the flood detection means. Elevator control device lifting device. 4. The elevator control device lifting device according to claim 3, wherein the elevator is provided at a predetermined position directly below the counterweight, and suppresses a sudden drop of the counterweight due to an increase in the pulling speed of the controller due to release of the braking force. A lift device for an elevator control device, comprising a shock-absorbing member. In the elevator control device pulling device according to any one of claims 1 to 4,
An elevator control device pulling device comprising: a position detecting unit that detects that the control device has been pulled up to a predetermined height position and shuts off electric power supplied to the pulling mechanism. A fixing device provided in the elevator pit and having an opening in an intermediate portion that sets an elevator control device that controls the elevation of the elevator car to a position that can be checked,
A cylinder having one end facing the elevator control device via the opening of the fixing device and pushing up the elevator control device at one end to a predetermined height position via a transmission medium when the other end receives a pressing force. Mechanism and
A support member that is normally arranged at the upper end on the other end side of the cylinder mechanism and suspends a weight having a predetermined weight;
Flood sensing means for sensing flooding before reaching the control device in the pit,
Means for separating the weight from the support member and applying a pressing force to the other end of the cylinder mechanism when receiving a flood detection signal from the flood detection means. The elevator control device pulling device according to any one of claims 1 to 4, and claim 6,
When receiving a flood detection signal from the flood detection means, sends a command to the control device to land the predetermined floor of the elevator car to the control device, and prompts a passenger in the car to get off the floor after landing the predetermined floor,
Means for supplying power to the lifting mechanism and raising the control device when receiving a signal relating to confirmation of the car getting off from the control device;
An elevator control device pulling device, comprising: a position detecting means for detecting that the control device has been pulled up to a predetermined height position and cutting off electric power supplied to the pulling mechanism. 8. The elevator control device lifting device according to claim 7, wherein the control device is pulled up to a predetermined height position based on a detection signal from the position detection means and stopped, and then the elevator car is routed through the control device. An elevator control device pulling device comprising means for restarting the operation of the elevator.

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