JP2003104634A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator which can perform the operation for a control circuit, which must be done when adjusting and maintaining the elevator, effectively and safely and in which the control circuit of a control device can be installed with dead space in a hoistway put to practical use effectively. SOLUTION: This elevator is provided with a car 2 which moves upward and downward in a hoistway 1, a motor 4 for driving the car 2 and a control device for controlling the operation of the elevator. The control device is provided with a main circuit 15 supplying electric power to the motor 4 for driving the motor 4, and a control circuit 16 for controlling the motion of the car 2. The main circuit 15 and the control circuit 16 are constituted independent of each other. The main circuit 15 is arranged near the motor 4 in the hoistway 1, and the control circuit 16 is installed in the panel of a door 12 on the side of an elevator landing 10, which can be operated from the elevator landing 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator in which a car in a hoistway is driven by a drive device to move up and down.

[0002]

2. Description of the Related Art In a conventional general elevator, a machine room is provided in the upper part of a hoistway, and a drive device (hoisting machine) for driving a car in the machine room and a control device for controlling the operation of the elevator ( A control panel) is provided, but in recent years, an elevator system has been proposed in which the drive device is installed in the hoistway without providing the drive machine room in the upper part of the hoistway. In this case, a control device for controlling the elevator is also installed in the hoistway.

The control device supplies electric power to the drive device to drive the drive device, and adjusts and adjusts the elevator.
A control circuit unit for controlling the driving operation of the car at the time of work such as maintenance is provided.

In Japanese Patent Publication No. 7-37308, the main circuit section of the control device and the control circuit section are separately constructed, the main circuit section is installed in the middle of the hoistway, and the control circuit section is provided in the pit of the hoistway. For example, when a trouble occurs in the control circuit unit, an operator enters the pit of the hoistway and takes out the control circuit unit, and moves the control circuit unit to the vicinity of the main circuit unit and the control circuit unit and the main circuit unit. It is disclosed that the inspection work is carried out while confirming the operation of.

Therefore, in the elevator of Japanese Examined Patent Publication No. 7-37308, the control circuit section is taken out of the pit and the control circuit section is operated while adjusting and maintaining the elevator while performing the operation. It is possible to proceed with work such as maintenance.

[0006]

However, it is not only troublesome and troublesome for the worker to enter the pit and take out the control circuit section, but there are various risks due to the worker entering the pit. Accordingly, there is a problem in safety.

Further, when the control circuit unit is taken out from the pit, a space for arranging the control circuit unit must be secured in advance in the hoistway, which leads to expansion of the hoistway. .

The present invention has been made in view of such a point, and an object thereof is to easily and efficiently perform work such as adjustment and maintenance of an elevator,
Another object of the present invention is to provide an elevator in which the control circuit unit of the control device can be installed by effectively utilizing the dead space in the hoistway.

[0009]

The invention according to claim 1 comprises a car that moves up and down in a hoistway, a drive device that drives this car, and a control device that controls the operation of an elevator. The control device includes a main circuit unit that supplies electric power to the drive unit to drive the drive unit, and a control circuit unit that controls the operation of the car, and the main circuit unit and the control circuit unit are independent of each other. The main circuit section is installed in the hoistway in the vicinity of the drive unit, and the control circuit section is provided so that it can be operated from an elevator landing outside the hoistway. Is characterized by.

The invention according to claim 2 is characterized in that the control circuit portion of the control device is housed in the panel of the door provided at the entrance of the elevator hall.

According to a third aspect of the present invention, the control circuit portion of the control device is provided on a side of a sill for supporting a door provided at an entrance of an elevator hall.

The invention according to claim 4 is characterized in that the control circuit portion of the control device is provided below a sill for supporting a door provided at an entrance of an elevator hall.

In a fifth aspect of the present invention, the control circuit portion of the control device is provided on a header case that covers an upper portion of a door provided at an entrance of an elevator hall.

According to a sixth aspect of the present invention, the control circuit section of the control device is provided on the car in the hoistway.

The invention according to claim 7 is characterized in that the control circuit portion of the control device is provided on the ceiling portion of the hoistway.

The invention according to claim 8 is characterized in that a shielded cable is used for signal transmission between the main circuit portion and the control circuit portion of the control device.

The invention according to claim 9 is characterized in that an optical cable is used for signal transmission between the main circuit portion and the control circuit portion of the control device.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the first of the present invention.
Is shown. Reference numeral 1 shown in the drawing is a hoistway formed in the building, and a car 2 and a counterweight 3 are provided in the hoistway 1.

Further, a thin motor 4 as a drive device and a motor pulley 5 which is driven by the motor 4 to rotate are provided in the upper part of the hoistway 1. The car 2 and the counterweight 3 are connected to each other by a main rope (not shown), and the middle of the main rope is the motor pulley 5
The car 2 and the counterweight 3 are suspended around the hoistway 1 by the main rope while maintaining a state in which the car 2 and the counterweight 3 are almost in weight equilibrium. The weights 3 are designed to move up and down in opposite directions.

Guide rails 6 for guiding the lifting and lowering of the car 2 are provided on both sides of the car 2, and a counterweight 3 is also provided.
Guide rails 7 for guiding the lifting and lowering of the counterweight 3 are provided on both sides of each.

An entrance / exit 8 for passengers to enter and exit is formed on the front surface of the car 2, and a double door 9 for opening / closing the entrance 8 is provided on the front of the car 2.

The elevator platform 1 on the floor of the building
An entrance / exit 11 communicating with the inside of the hoistway 1 is formed on the wall surface 0, and a door 12 on the landing side is provided in the entrance / exit 11.

The door 12 is, for example, of a double-opening type and is slidably arranged on a sill 13 which is horizontally attached to a lower inner portion of the entrance / exit 11, and slides left and right along the sill 13 to enter and exit 11 is opened and closed.

The upper part of the door 12 is covered with a header case 14 provided on the inner upper part of the doorway 11, and the door 12 can be moved left and right in the header case 14.

As shown in FIG. 2, this elevator control device is provided with a main circuit section 15 for controlling the motor 4 and a control circuit section 16 for controlling the driving operation of the car 2, and these main circuit sections 15 are provided. And the control circuit unit 16 are configured separately and independently.

The main circuit section 15 and the motor 4 are connected to each other via a cable 17, and signals are transmitted between the main circuit section 15 and the motor 4 via the cable 17, and a control circuit is also provided. The section 16 and the main circuit section 15 are connected to each other via a cable 18, and a signal is transmitted between the control circuit section 16 and the main circuit section 15 via the cable 18.

As shown in FIG. 1, the main circuit portion 15 of this control device is located in the vicinity of the motor 4 in the hoistway 1 and does not hinder the raising and lowering of the car 2 and is horizontal to the car 2. It is provided at a position that maintains a predetermined safety distance. Then, electric power is supplied to the motor 4 by the main circuit portion 15,
The motor pulley 5 rotates in response to the supply of the electric power, and the car 2 and the counterweight 3 move up and down.

The control circuit section 16 of the control device is provided so that it can be operated from the elevator hall 10. That is, in the case of the first embodiment, it is housed inside the panel of the door 12 on the landing side.
The control circuit section 16 can be pulled out from the inside of the door 12 to the outside by a slide mechanism or a lateral rotation mechanism as a moving mechanism as needed.

During work such as elevator adjustment and maintenance,
First, the worker opens and locks the door 12 on the landing side by a width necessary for work, and in this state, turns the hand inside the door 12 from the landing 10 to pull out the control circuit unit 16, and
At 0, a necessary operation is performed on the control circuit unit 16, for example, an operation of opening a power switch or the like to proceed with work such as elevator adjustment and maintenance.

After the work is completed, a return operation such as closing the power switch of the control circuit unit 16 is performed, and then the control circuit unit 16 is returned to the original position inside the door 12, and the door 12 is closed to perform normal operation. Check.

As described above, the operation of the control circuit section 16 performed during the work such as elevator adjustment / maintenance can be easily and efficiently performed at the elevator landing 10 without the need for a worker to enter the hoistway 1. It can be done well and safely.

Since the control circuit section 16 is housed in the dead space inside the door 12 on the landing side, the hoistway 1
It is not necessary to secure a dedicated space for installing the control circuit section 16 therein, and therefore, the space in the hoistway 1 can be saved and the size thereof can be reduced.

Further, the main circuit portion 15 of the control device and the motor 4
A signal on which the switching frequency of the inverter is superimposed is transmitted between the drive circuit and the drive circuit, and this may act as noise that affects other devices.
Is provided in the vicinity of the motor 4, and therefore the cable 17 connecting the main circuit unit 15 and the motor 4 does not need to be run around for a long time. Can be reduced.

FIG. 3 shows a second embodiment of the present invention, and in this embodiment, the door 1 on the landing side.
A control circuit section 16 of the control device is provided in a lateral space portion on one end side of a sill 13 that slidably supports 2. The control circuit unit 16 can be pulled out from a position on the side of the sill 13 to a position near the doorway 11 of the landing 10 by a slide mechanism or a lateral rotation mechanism as a moving mechanism, if necessary. The other components are the same as those in the first embodiment.

In the case of this embodiment, at the time of work such as adjustment and maintenance of the elevator, first, the worker opens and locks the door 12 on the landing side by a width necessary for the work, and in this state, from the landing 10. Turn the hand into the hoistway 1 and control circuit 16
Is pulled out to the entrance / exit 11 and necessary operations are performed on the control circuit unit 16 at the landing 10 to proceed with work such as elevator adjustment and maintenance.

After the work is completed, a return operation such as closing the power switch of the control circuit section 16 is performed, and then the control circuit section 16 is returned to the original position on the side of the sill 13 and the door 12 is opened.
Close and check normal operation.

Also in this case, similarly to the first embodiment, the operation of the control circuit section 16 can be easily and efficiently carried out at the elevator landing 10 without the worker having to enter the hoistway 1. And it can be done safely.

Since the control circuit section 16 is installed in the dead space on the side of the sill 13, it is not necessary to secure a dedicated space for installation in the hoistway 1, and therefore the hoistway is not required. It is possible to save space in 1 and reduce the size.

FIG. 4 shows a third embodiment of the present invention. In this embodiment, the door 1 on the landing side is shown.
A control circuit unit 16 of the control device is provided in a space below the sill 13 that slidably supports the device 2. The control circuit unit 16 is provided with a sill 13 as required by a slide mechanism or a lateral rotation mechanism as a moving mechanism.
It can be pulled out from the lower side to the entrance / exit 11. The other components are the same as those in the first embodiment.

In the case of this embodiment, at the time of work such as adjustment and maintenance of the elevator, first, the worker opens and locks the door 12 on the landing side by a width required for the work, and in this state, from the landing 10 Turn the hand inside the hoistway 1 and pull out the lower control circuit 16 of the sill 13 to the entrance / exit 11, and perform necessary operations on the control circuit 16 at the landing 10 while adjusting and maintaining the elevator. Work on.

After the work is completed, a return operation such as closing the power switch of the control circuit unit 16 is performed, and then the control circuit unit 16 is returned to the original position below the sill 13 and the door 12 is opened.
Close and check normal operation.

Also in this case, as in the case of the first embodiment, the operation of the control circuit section 16 can be easily and efficiently performed at the elevator landing 10 without the worker having to enter the hoistway 1. And it can be done safely.

Since the control circuit section 16 is installed in the dead space below the sill 13, it is not necessary to secure a dedicated space for its installation in the hoistway 1, and therefore the hoistway is not required. It is possible to save space in 1 and reduce the size.

FIG. 5 shows a fourth embodiment of the present invention, and in this embodiment, the door 1 on the landing side.
The control circuit section 16 of the control device is provided on the header case 14 provided on the upper part of the No. 2. The control circuit portion 16 can be pulled out from the top of the header case 14 to the portion of the entrance / exit 11 by a slide mechanism or a lateral rotation mechanism as a moving mechanism as needed. The other components are the same as those in the first embodiment.

In the case of this embodiment, at the time of work such as adjustment and maintenance of the elevator, the worker first opens and locks the door 12 on the landing side by a width required for the work, and in this state Turn the hand in the hoistway 1 to pull out the control circuit section 16 on the header case 14 to the entrance / exit 11, and at the landing 10 perform necessary operations on the control circuit section 16 while adjusting and maintaining the elevator. Work on.

After the work is completed, a return operation such as closing the power switch of the control circuit unit 16 is performed, and then the control circuit unit 16 is returned to the original position above the header case 14, the door 12 is closed, and the normal operation is performed. Check.

Also in this case, as in the case of the first embodiment, the operation of the control circuit section 16 can be easily and efficiently performed at the elevator landing 10 without the need for a worker to enter the hoistway 1. And it can be done safely.

Since the control circuit section 16 is installed in the dead space above the header case 14, it is not necessary to secure a dedicated space for installation in the hoistway 1, and therefore the control circuit section 16 can be moved up and down. The space in the road 1 can be saved and the size can be reduced.

FIG. 6 shows a fifth embodiment of the present invention. In this embodiment, the control circuit section 16 of the control device is provided on the upper surface of the car 2. The control circuit section 16 can be pulled out from the center of the upper surface of the car 2 to the front side of the car 2 as required by a sliding mechanism as a moving mechanism. The other components are the same as those in the first embodiment.

In the case of this embodiment, at the time of work such as adjustment and maintenance of the elevator, first, the worker opens and locks the door 12 on the landing side by a width necessary for the work, and the car 2 is also locked. Stop at the position where the top surface is at the same level as the landing 10.

In this state, the operator puts his / her hand into the hoistway 1 from the landing 10 and opens the control circuit section 16 on the upper surface of the car 2 into the doorway 1.
1 and draws the control circuit 16 in the hall 10 while performing necessary operations on the control circuit 16 to proceed with elevator adjustment and maintenance.

After the work is completed, a return operation such as closing the power switch of the control circuit section 16 is performed, and then the control circuit section 16 is returned to the original position on the upper surface of the car 2 and the door 1 is opened.
Close 2 and check normal operation.

Also in this case, similarly to the first embodiment, the operation of the control circuit section 16 can be easily and efficiently performed at the elevator landing 10 without the worker having to enter the hoistway 1. And it can be done safely.

Since the control circuit section 16 is installed in the dead space above the car 2, it is not necessary to secure a dedicated space for its installation in the hoistway 1, and therefore the hoistway. It is possible to save space in 1 and reduce the size.

FIG. 7 shows a sixth embodiment of the present invention. In this embodiment, the control circuit section 16 of the control device is provided on the ceiling of the hoistway 1. The control circuit unit 16 is provided at the landing 10 at the ceiling of the hoistway 1.
It is provided at a position deviated to the side, and can be pulled down to the entrance / exit 11 of the landing 10 as needed by a moving mechanism such as a hanging mechanism or a rotating mechanism. The other components are the same as those in the first embodiment.

In the case of this embodiment, at the time of work such as adjustment and maintenance of the elevator, first, the worker opens and locks the door 12 on the landing side by a width necessary for the work, and in this state, from the landing 10 Adjusting and maintaining the elevator while extending the hand inside the hoistway 1 and pulling down the control circuit part 16 arranged on the ceiling of the hoistway 1 near the doorway 11 and performing necessary operations on the control circuit part 16. Work on.

After the work is completed, a return operation such as closing the power switch of the control circuit unit 16 is performed, and then the control circuit unit 16 is returned to the original position of the ceiling of the hoistway 1 and the door 1
Close 2 and check normal operation.

Also in this case, as in the case of the first embodiment, the operation of the control circuit section 16 can be easily and efficiently performed at the elevator landing 10 without the need for a worker to enter the hoistway 1. And it can be done safely.

Since the control circuit section 16 is installed in the space of the ceiling of the hoistway 1, it is not necessary to secure a dedicated space for installing the hoistway 1 in the hoistway 1. It is possible to save space in 1 and reduce the size.

On the other hand, in each of the above-described embodiments, a shielded cable can be used as the signal transmission cable 18 that connects the main circuit section 15 and the control circuit section 16. Then, by using the shielded cable, it is possible to suppress superposition of noise during signal transmission.

The signal transmission cable 18 may be an optical cable. By using the optical cable, it is possible to prevent noise from being mixed in during signal transmission.

[0062]

As described above, according to the present invention,
Easily, efficiently, and safely perform operations on the control circuit unit when adjusting or maintaining the elevator at the elevator hall without the troublesome and inconvenient labor that would be required for a worker to enter the pit. Moreover, since the dead space in the hoistway is effectively used and the control circuit section of the control device is installed in the hoistway, the space in the hoistway 1 can be saved and the size thereof can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing an electric circuit configuration in the embodiment.

FIG. 3 is a sectional view showing a second embodiment of the present invention.

FIG. 4 is a sectional view showing a third embodiment of the present invention.

FIG. 5 is a sectional view showing a fourth embodiment of the present invention.

FIG. 6 is a sectional view showing a fifth embodiment of the present invention.

FIG. 7 is a sectional view showing a sixth embodiment of the present invention.

[Explanation of symbols]

1 ... hoistway 2 ... basket 4 ... Motor (drive device) 10 ... Elevator platform 11 ... Doorway 12 ... Door 13 ... Sill 14 ... Header case 15 ... Main circuit section 16 ... Control circuit section 17, 18 ... Cable

Claims (9)

[Claims] 1. A car that moves up and down in a hoistway, a drive device that drives the car, and a control device that controls the operation of an elevator. The control device supplies electric power to the drive device. And a main circuit unit for driving the drive device, and a control circuit unit for controlling the operation of the car, the main circuit unit and the control circuit unit are configured independently, the main circuit unit is An elevator, which is installed in the hoistway in the vicinity of the drive unit, and in which the control circuit section is provided so as to be operable from an elevator landing outside the hoistway. 2. The elevator according to claim 1, wherein the control circuit section of the control device is housed in a panel of a door provided at an entrance of the elevator hall. 3. The elevator according to claim 1, wherein the control circuit portion of the control device is provided on a side of a door supporting sill provided at an entrance of an elevator hall. 4. The elevator according to claim 1, wherein the control circuit section of the control device is provided below a sill for supporting a door provided at an entrance of an elevator hall. 5. The control circuit portion of the control device is provided on a header case that covers an upper portion of a door provided at an entrance of an elevator hall.
Elevator described in. 6. The elevator according to claim 1, wherein the control circuit section of the control device is provided on a car in the hoistway. 7. The elevator according to claim 1, wherein the control circuit portion of the control device is provided on a ceiling portion of the hoistway. 8. The elevator according to claim 1, wherein a shielded cable is used for signal transmission between the main circuit section and the control circuit section of the control device. 9. The elevator according to claim 1, wherein an optical cable is used for signal transmission between the main circuit section and the control circuit section of the control device.