JPH0859139A - Elevator - Google Patents

Abstract

PURPOSE: To provide an elevator demanding a small amount of consuming electric power safe and simple in operating control by providing a driving source to move a cage on at least one of the cages connected to each of ropes. CONSTITUTION: A linear motor stator 6a for elevation is provided in elevating passages 1a, 1b, and a linear motor needle is provided in a cage 5c. Thereafter, two or more than two of cages installed on one rope are circulated by a linear motor provided in the cage 5c as a driving source. A cage 5f is provided so that it is a rope system 3c, positioned on a diagonal line of the cage 5c and coincides with their mutual stopping storey floor surface at the time when it stops. When the cage 5c is at elevation 1a, the cage 5f is at elevation 1b. As the cage 5c and the cage 5f are equal in weight, the cage 5c and the cage 5f respectively work as a counterweight for each other and required linear motor thrust can be thrust and acceleration matching a weight difference of a passenger. Additionally, the cages connected to the same rope system are positioned with the same intervals with each other, and they can be controlled in operation with the safe cage intervals with the cages connected to the different rope systems.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-car type elevator for operating a plurality of cars in a plurality of hoistways, and more particularly to a multi-car type elevator guided by a rope and driven by a linear motor.

[0002]

2. Description of the Related Art Conventionally, as a means for realizing a multi-car type elevator, a low-press type linear motor elevator has been proposed, as disclosed in, for example, Japanese Patent Application Laid-Open No. 4-153187. Further, as a rope-type multi-car elevator, the one disclosed in JP-A-62-111886 has been proposed.

[0003]

Since the above-mentioned conventional low-press type linear motor elevator does not use a counterweight unlike a rope-type elevator, the drive source has to generate a large thrust and consumes less power. There is a big problem. In addition, a rope-type elevator can reduce the acceleration at the time of falling by using a counter weight, and a safety device that uses a rope can be installed, while a low-press type linear motor elevator uses a safety device that uses such a rope. There is also a problem that the device cannot be used.

It is an object of the present invention to provide a multi-car system elevator by providing a drive source on the car side (for example, a linear motor etc.) for driving and using an endless rope for guiding, thereby reducing power consumption and safety. To provide an elevator with simple operation control.

[0005]

In order to achieve the above object, a plurality of endless ropes, at least two cars attached to each of the endless ropes, two hoistways in which the cars move, and the hoistway This is achieved by providing a horizontal path provided above and below connecting the two and at least one of the cars with a drive source for moving the car.

[0006]

According to the present invention, a plurality of ropes and a plurality of cars are provided in the hoistway, and a drive source for moving the car is provided in at least one of the cars. It is possible to realize a multi-car elevator with high safety and easy operation control.

[0007]

The present invention will be described below with reference to the drawings.

FIG. 1 shows the overall construction of an embodiment of the present invention.

In FIG. 1, two hoistways 1a and 1b (for example, 1a is raised and 1b is lowered), one of which is for ascending and the other is for descending, and the hoistways 1a and 1b are horizontally arranged at the tops thereof. A total of two horizontal roads, a horizontal road 2b and a horizontal road 2b, are provided at the lower part of the road 2a. In the example shown in the figure, two cars are attached to a set of rope systems in the hoistway and the horizontal path with a predetermined interval (positions that roughly oppose each other in this figure, position of 1/2 circumference of the rope). ing. It should be noted that three sets of rope systems 3a, 3b, and 3c were provided as a whole, and two cars were provided for each set of rope systems, for a total of six cars, so as to circulate in the two hoistways. Is.

Furthermore, the relationship between the rope system and the car will be described below by taking the car 5c as an example. Rope system 3a, rope system 3
b, rope system 3c, hoistway 1a, 1b and horizontal path 2a,
Pulley 4a, pulley 4b, which are arranged near each connection portion of 2b,
Pulley 4c, pulley 4d, hoistway 1a, 1b, horizontal road 2
It is quadrilaterally stretched along a and 2b. Basket 5c
It is attached to the rope system 3c. The same rope system 3
A car 5f is attached to c. Although not shown, the car 5c is fixed in the longitudinal direction of the rope, but has a mechanism capable of freely rotating in the radial direction of the rope. Although not shown, guide rails are provided across the hoistways 1a and 1b and the horizontal paths 2a and 2b, and the car 5c is provided with guide wheels.
It can run on the guide rails.

As described above, since the car 5c is guided by the rope system 3c and the guide rail, the car 5c is prevented from inclining in the positional relationship between the rope system 3c and the guide rail regardless of whether the car 5c is a horizontal road or a hoistway. Can be set to. With such a configuration, the car 5c can smoothly move in the hoistway and the horizontal path along the guide rails.

Next, a hoisting linear motor stator (primary side linear motor) 6a is installed in the hoistways 1a and 1b, and a horizontal path 2
Horizontal linear motor stators (primary-side linear motors) 6b are also provided on a and 2b. On the other hand, in the basket 5c,
A linear motor mover (secondary linear motor) is provided so as to face the linear motor stator. By supplying electric power to generate thrust between the linear motor stator and the mover, the car 5c can move up and down and move horizontally.

As described above, since the linear motor provided in the car is used as the drive source to circulate two or more cars mounted on one rope, the machine room can be reduced.

Further, as described above, the car 5f is provided on the diagonal of the car 5c by the rope system 3c, and the cars 5f are provided so that when the cars are stopped, the cars coincide with the floor surface of the stop floor. This car 5f is, like the car 5c, a rope system 3c
Installed on. Therefore, when the car 5c is in the hoistway 1a, the car 5f is in the hoistway 1b. Since the weights of the car 5c and the car 5f excluding the passengers in the car are equal, the car 5c and the car 5f play the role of counterweights with each other, and the required thrust of the linear motor is the thrust and acceleration corresponding to the difference in the weight of the passengers. Minute thrust is sufficient. Therefore, the thrust of the linear motor becomes extremely smaller than that of the low press multi-car, and the power consumption can be reduced.

A car 5a and a car 5d are connected to the rope system 3a, and a car 5b and a car 5e are connected to the rope system 3b in the same manner as the car 5c and the car 5f. Each car is provided with a linear motor type drive mechanism similar to the car 5c.

Each car is arranged in the order of a car 5a, a car 5b, a car 5c, a car 5d, a car 5e, and a car 5f along a hoistway and a horizontal path. Two cars connected to the same rope system, that is, the car 5a and the car 5d, the car 5b and the car 5e, the car 5c and the car 5f have a constant interval,
For cars connected to different rope systems, for example car 5a, the car 5b, car 5f can have different spacings. Therefore, for various parameters such as boarding time, waiting time, and transportation efficiency, optimal elevator operation control can be performed within a safe car interval between cars of different rope systems.

As described above, according to the present embodiment, the structure is such that two or more cars connected to one rope system are circulated by using the linear motor arranged in the hoistway as the drive source. Since the chamber is not necessary and each basket acts as a counter weight, the thrust of the linear motor can be reduced, so that the power consumption can be reduced. Also, you can change the distance between different rope system cages,
There is also an effect that the operation control of the elevator can be optimized. Interference between cars connected to the same rope system (car 5d must be stopped because the car 5a gets on and off.)
In order to eliminate the above, one car (for example, the car 5a and the car 5d) may be replaced with a counter weight.

In the above embodiment, the rope system is 3 sets and the car is 2 sets for each rope system, that is, 6 sets in total, but it is necessary to increase the number of cars in each rope system or to increase the number of sets of rope system. It is possible to increase. By increasing the number of cars, it is possible to improve transport efficiency and shorten boarding time and waiting time.

Further, as the linear motor of this embodiment,
Various linear motors such as linear induction motors and linear synchronous motors can be used.

The linear induction motor has an effect that it can be manufactured at a low price because the secondary side can be simply constructed by a sheet-shaped secondary conductor and a secondary core.

Since the linear synchronous motor uses a permanent magnet on the secondary side, excitation loss and secondary loss are eliminated.
This has the effect of reducing power consumption.

Next, a concrete example of matching the car position with the floor will be described with reference to FIG. FIG. 2 shows a structure in which the floor of the building is added to the embodiment of FIG. 1, except for linear motors, guides and the like, which are not necessary for the description, and one rope system is provided to simplify the overall structure.

The rope system 3a shown in FIG. 2 has a car 5a and a car 5
d is attached and circulates between the hoistways 1a and 1b and the horizontal paths 2a and 2b for seven floors. When the car 5a stops on the fifth floor of the hoistway 1a as shown in FIG.
The floor surface of the car coincides with the floor 11a of the relevant floor, so that passengers can get on and off smoothly, but the floor of the car 5d also corresponds to the floor 11b of the third floor of the hoistway 1b. On the other hand, the mounting of the cars 5a and 5d is adjusted. This allows passengers to get on and off the car 5a at the same time as the car 5d. Even if there is no passenger on the car 5d from the third floor, if the door is opened when the car is stopped on the third floor, the passengers inside the car 5d can feel a sense of security.

In this embodiment, it is possible to get on and off at the same time by using two cars, and it is possible to shorten the time for getting on and off. Further, even if there are no passengers, the door opening control is performed when the vehicle is stopped, so that the passengers can feel a sense of security.

In FIG. 2, an example in which two cars stop on the 3rd and 5th floors in a 7-floor building has been explained, but the same effect can be obtained in a building with a different floor and other floors. Needless to say. Further, even when three or more cars are attached to one rope system, the same effect can be obtained by attaching the cars in the same arrangement relationship. The same applies to the case of having two or more rope systems.

Next, with reference to FIG. 3, an embodiment in which a boarding / alighting place is provided on a horizontal road will be described.

FIG. 3 is a simplified view of the structure shown in FIG. 1, in which a boarding / alighting field is provided in a horizontal road, two rope systems are provided, and parts such as a linear motor and a guide which are not necessary for the description are omitted. Is.

In FIG. 3, three loading / unloading areas 10 are provided in the horizontal road 2a. By doing so, there is an effect that the elevator can be used for horizontal movement in a building with a large floor area on each floor. In addition, by setting the horizontal road 2b at the entrance lobby floor and the horizontal road 2a at a floor with a large number of people getting on and off, such as a dining room, passengers can get on and off multiple cars at once, which also has the effect of improving transport efficiency. is there.

When at least three cars are installed in one rope system, the first of the three cars is the hoistway 1
Ascending in a, the second of the three cars is descending in the hoistway 1b near the horizontal road 2b, and the remaining cars are descending in the hoistway 1b. The first of the three cars arrives at the top floor. If it is stopped due to this, the remaining two cars will be forcibly stopped. There is a problem that the passengers of the remaining two cars have to wait without getting on or off. For that purpose, the horizontal path 2a and the horizontal path 2 of the elevator
By providing a plurality of boarding / alighting areas 11 in b, and determining the position of the boarding / alighting area that stops on the horizontal road 2a of the first car according to the destination of the second and third cars, Can solve some problems.

In this embodiment, as described above, by providing a plurality of entry / exit points 11 on the horizontal roads 2a and 2b of the elevator, it is possible to shorten the waiting time of passengers in the car during the ascent / descent. .

In the illustrated example, the two hoistways and the horizontal path have the same length, and the movement of the car is short as a whole. The hoistway or the two horizontal paths may have different lengths.

FIG. 4 shows an embodiment relating to power feeding by a trolley. The car shown in FIG. 1 is provided with a power supply line 8a as a power supply source along the hoistway and a trolley 8b.
a, the cage 5d.

The trolley 8b collects electric power for driving the linear motor from the power supply line 8a. As a result, although not shown in the figure, power is supplied to the linear motor mover (primary side linear motor) 6c.

In this example, the power converter 7 is provided on the building side. By installing the power converter 7 on the building side,
The weight and volume of the car are small, and it has the effects of reducing power consumption, simplifying the structure of the car frame, and reducing the price.

FIG. 5 shows a method of supplying electric power to the linear motor mover 6c from a battery 9a provided in the car. For this reason, it is necessary to provide a charging means for the battery 9a. In this example, the floor with the hoistway 1a is the charging floor, and there is a charger 9b and a car arrival sensor 9c there.
Is provided. A power converter 7 that supplies desired power is loaded on each of the cars 5a and 5d.

Normally, electric power is supplied from the battery 9a to the power converter 7, and the power converter 7 feeds power to the linear motor mover 6c to move the car 5a up and down. By using the battery 9a, there is an effect that the power supply line 8a becomes unnecessary and the mechanism of the circulation type elevator is simplified.

Since the difference in weight between the car 5a and the car 5d attached to one rope system 1a becomes a load on the linear motor, the car 5a is heavier than the car 5d.
When a is lowered, electric power is supplied from the battery 9a of the car 5d, but the linear motor mover 6c of the car 5a is supplied.
Back electromotive force is generated in the battery 5a of the car 5a
It can be charged to a. This has the effect of reducing power consumption and shortening the charging time of the battery 9a. Furthermore, by providing a charging floor on a floor with a large number of passengers getting on and off, such as the entrance lobby floor, a dining room, or the standby floor of the car, it is possible to devote the car stop time to charging the battery. Furthermore, if the power consumption of each car is detected and the car to be put on standby is determined so as to charge the battery of the car that consumes a large amount of electricity, the standby time can be effectively utilized.

According to this embodiment, the power supply line becomes unnecessary,
The mechanism of the circulation rope type elevator can be simplified, the charging time can be shortened by reducing the power consumption, and the car stop time can be effectively used as the power supply time.

Further, in the example of FIG. 5, only the electric power converter 7 is provided in the car, and the electric power is supplied to the linear motor mover 6c from the electric power converter 7 provided in the car.
It is also possible to supply power to the trolley. That is, since this trolley 8b collects the electric power for driving the linear motor from the power supply line 8a and supplies the electric power to the power converter 7, the power supply line need only be two inputs to the power converter 7, and noise is generated. The effect is that it will be less likely to occur.
In addition, the power supply to the rope system of the other set can also be performed from the power supply line 8a.

The present embodiment has the effect of simplifying the power supply line and simplifying the mechanism of the circulation rope type elevator. It should be noted that, instead of providing the trolley 8b and the power supply line 8a individually, a power supply function can be provided by attaching a power supply function to the rope to supply power.

FIG. 6 shows an embodiment in which the linear motor stator on the hoistway side is a primary side linear motor. The figure shows the case of one rope system. A primary side linear motor 12a is installed along the hoistway, and a secondary side linear motor 12b, which is a linear motor mover, is provided in the car 5a so as to face the primary side linear motor 12a.

By providing the primary-side linear motor 12a on the hoistway side, power can be supplied from the power converter 7 to the primary-side linear motor 12a, so that the power supply line can be fixed, so that the mechanism is simplified. Further, in order to finely determine the movement control, the primary side power supply line is subdivided into sections, and power is supplied in a section control manner, so that power consumption due to power supply can be minimized. Unlike the illustration, when there are a plurality of rope systems, a primary side linear motor 12a may be installed for each rope system.

As described above, according to this embodiment, there is an effect that the mechanism of the circulation type elevator is simplified.

Also, as shown in FIG. 6, a pair of rope systems 3a
A plurality of cages are provided in the plurality of secondary side linear motors 12b.
In a system in which each secondary side linear motor 12b has a different magnitude of thrust, the secondary side linear motor 12b generating a small thrust is
Secondary side linear motor 12 on the side generating a large thrust
Car vibration may occur due to the influence of the thrust of b in the form of thrust disturbance. Further, the rope on the side in the traveling direction of the car on which the secondary linear motor 12b on the side that generates a large thrust is deflected, and at worst, the rope sags and the rope comes out of the pulley groove. There is a risk of breaking the rope by riding on other ropes. This phenomenon is caused by the secondary side linear motor 1 having a plurality of cars 5a and 5d.
Even if the thrusts of 2b are the same, it occurs when the load of each car is different. Therefore, from the power converter 7 to multiple cars 5
The driving power is not supplied to the secondary side linear motors 12b provided in a and 5d at the same time, but each of the power converter 7 is connected to the secondary side so as to avoid adverse effects such as bending of the rope and pulling disturbance. A system may be used in which drive power is supplied to each secondary linear motor 12b. That is, as described above, the above problem can be solved by controlling the supply amount to the secondary side linear motor of each car by dividing the predetermined section to supply electric power to the primary side linear motor. .

FIG. 7 shows an embodiment of a car drive device failure rescue method. In this example, when the rope system is one set, the linear motor mover side of the car 5a is connected to the primary side linear motor 12
a, a secondary side linear motor 12b that is a linear motor stator is provided in the hoistway 1a, and the primary side linear motor 12a
An electric power converter 7 for supplying and driving the electric power source and a rescue operation control device 13 for generating a rescue operation command are connected to the electric power converter 7.

The rescue operation control device 13 monitors the state of each car, and when one car, for example, the car 5d fails and stops, the primary side linear system that drives the cars 5a attached to the same rope system 3a. The rescue operation command is sent to the power converter 7 that controls the power to the motor 12a.
The car 5a is moved to the nearest floor 11a. At this time, the car 5a and the car 5d attached to the same rope system 3a also move to the nearest floor 11b, and the rescue operation of the car 5d can be performed. Rescue operation control device 1
3 monitors the driving state of each car, and promptly performs the above-mentioned operation when at least one car fails.

Therefore, in the present embodiment, when the rescue operation control device 13 monitors the driving state of each car and detects the failure of the primary side linear motor of one car, the failure cars are attached to the same rope system. Since the defective car can be moved to the nearest floor by controlling the drive of the existing linear motor car, there is an effect that the passenger in the defective car can be rescued quickly.

In addition to the rescue operation, the car or the like may be repaired. In that case, the repair of the linear motor will be performed at night when the transportation capacity may be low, and during the daytime when it is not necessary to reduce the transportation capacity, it is possible to drive the rope system including the failed linear motor with only a healthy linear motor. is there. In this case, there is an effect that the circulation operation can be continued and the transportation capacity can be secured without stopping the cage having the failed linear motor, which is less than the capacity when all the linear motors are normal.

FIG. 8 shows an embodiment of a safety device for the entire elevator.

Signals such as speed, current, voltage and information from each car are constantly sent to the multicar car operation management device 14. If there is even one abnormality, each car operation management device 14 of the multi-car detects that the elevator operation is stopped and the power supply 15 is cut off.

Therefore, in this embodiment, there is an effect that safety can be ensured during elevator operation.

FIG. 9 shows an example of rescue operation when the entire rope system of a set having a plurality of cars fails.

As compared with FIG. 1, a feature is that a coupler 16 is provided on the upper surface and the lower surface of each car. Same rope system 3a
Both the car 5a and the car 5d attached to the
It is assumed that it becomes impossible to move by itself and stops. In this case, the car 5c and the car 5f attached to another rope system 3c approach the defective car during the rescue operation. Thereafter, the car 5f operates the coupler 16 to connect with the coupler 16 on the car 5a side. Similarly, the car 5c is connected to the car 5d by the coupler 16. Then, the car 5c and the car 5f of the rope system 3c move the cars 5a and 5d to the nearest floors 11a and 11b, stop them, and rescue passengers in each car. Although not shown in the figure, when the device that monitors the condition of each car detects the failure of all the cars attached to the same rope system and each car in that rope system cannot move by itself, Send a command to the above rope system car to perform the above rescue operation. Here, all the cages of the rope system for rescue operation were connected to all the faulty cages by a coupler, but at least 1 for each of the rescue side and the rescue side.
It goes without saying that the above rescue operation can be realized if the units are connected.

Therefore, in the present embodiment, even if all the cars of the same rope system fail, the car of the other rope system can be rescued, so that the passengers can be prevented from being trapped in the car for a long time.

When it takes a long time to repair, if there are two cars in the same rope system, the cars of the same rope system including the failed car are placed on the upper and lower parts of the horizontal path, respectively, and the other one without abnormality is The rope-type car can also be turned around on the top and bottom floors. However, if there are 3 or more rope systems, you cannot go from the top floor to the bottom floor in the same car, but in this case you can change trains at the middle floor.

As described above, the present embodiment has the effect that the rescue operation can be performed quickly even if one rope system fails. In addition, there is an effect that a minimum operation can be performed without stopping the elevator until the breakdown is repaired.

FIG. 10 shows an embodiment in which the circulation direction is temporarily reversed in response to a hall call. Only one set of the rope system 3a is taken out from FIG. 1, and the normal operation direction and the temporary reverse rotation operation direction are indicated by arrows.

In FIG. 10, a hall call is generated on the floor immediately after the car 5d passes through the normal operation, there is no call on the other floors, and there are no passengers in the cars 5a and 5d. In this case, if the car 5d changes direction and arrives at the hall call floor 17 earlier than the time when the car 5a arrives at the hall call floor 17, the rope system 3a is driven in the temporary reverse rotation direction. , Move the car 5d to the hall call floor 17,
Passengers drive in the normal direction after boarding. This allows
Immediately after passing the car, there is an effect that the waiting time of the passenger who has generated the hall call can be reduced.

FIG. 11 shows an example of information display in the car. Only one set of the rope system 3a is taken out from FIG. 1, an information display device 18 is provided in the car, and a display example 19 thereof is described.

In FIG. 11, the car 5d is stopped at the floor 11b of the hoistway 1b, passengers of the car 5d are getting on and off, and the car 5a is stopped at the floor 11a of the hoistway 1a. Basket 5
On the information display device 18 in the car of a, as in the display example 19, "I am getting on and off at another floor .........." is displayed. As a result, there is an effect that the passengers in the car can know the reason why the car is stopped and the passengers are not given unnecessary anxiety.

FIG. 12 shows an embodiment in which a maintenance car is provided.
Only one set of rope system is taken out from FIG. 1, and an operation control panel 20 capable of special operation is provided in the car 5d.

From this operation control panel 20, speed settings such as low speed and high speed can be changed, and control commands for special operations suitable for maintenance work such as stopping at an arbitrary position can be input. The operation control panel 20 is provided with a key so that an ordinary person cannot operate it. Further, a maintenance hall call button 21 may be provided in the specific hole so that a car with a maintenance mechanism can be called. This hall call button is also provided with a key or configured to accept an encryption registration call so that an ordinary person cannot operate it.

Therefore, this embodiment has an effect that the maintenance of the elevator can be easily performed.

FIG. 13 shows an embodiment of the linear motor control of the present invention.

Car A26 attached to the same rope system
a, a linear motor control system 25a and 25b for controlling the linear motor of the car B26b, door control systems 23a and 23b for controlling the respective doors, and brake control systems 24a and 24b for controlling the respective brakes, and these are integrated. It is composed of an elevator control system 22. Here, the car A 26a and the car B 26b correspond to, for example, the car 5a and the car 5d in FIG.

As mentioned above, the linear motor control systems 25a and 25b are mounted on the same rope system.
26a and the car B26b are controlled, the linear motor of the car A26a and the linear motor of the car B26b have to be equal in generated acceleration and resultant speed. Otherwise, the rope connecting the car A26a and the car B26b will be bent and excessive tension will be generated, which will cause vibration of the car. Therefore, each linear motor control is performed with the same control parameter based on the same command value so that the thrust force and the speed of the linear motor become equal to each other. In this embodiment, a linear motor thrust control system is configured in each of the linear motor control systems 25a and 25b, and the elevator control system 22 generates a thrust F equal to the thrust command Fc. It should be noted that the rope extension can be adjusted to some extent by providing movers for all the cars and individually controlling the movers of each car when stopped.

However, the physical quantity peculiar to the car, for example, the weights of passengers and luggage may differ between the two cars. In that case, the same thrust causes different accelerations between the cars, and the above-mentioned problem occurs. In this embodiment, the passenger weight as the state quantity of the car is taken into the elevator control system 22, and the thrust command Fc * corrected in advance by taking into account the passenger weight between the cars is added to the above-mentioned thrust command of the car by the linear motor control system 25a. ，
25b, the resulting car accelerations can be made equal.

For example, the weight Ma of the car A26a is M + d.
M and the weight Mb of the car B26b are M, and the weight of the car A26a is dM heavier by dM, the thrust command is the linear motor control system 2
Fc * = g (M + dM) for 5a, and Fc * = g (M) for the linear motor control system 25b. Here, the function g represents the conversion from weight to thrust. As a result, the linear motor on the side of the car A26a can generate thrust commensurate with the weight like the car B26b.

In this embodiment, attention is paid to the weight, but the physical quantity such as the resistance of the linear motor, which is likely to change with temperature,
As long as it is a physical quantity unique to the car that affects acceleration, such as a physical quantity that easily changes depending on the car position, such as the gap length of a linear motor, and that easily changes due to various factors, import it into the elevator control system 22 as in the case of the weight. Can be corrected with.

As described above, according to the present embodiment, it is possible to avoid the problems caused by the bending of the rope between the cars, the excessive tension, and the fluctuation of the acceleration.

FIG. 13 also shows an embodiment in which the movement of the other car is prohibited and controlled while the passengers are getting on and off when one car is stopped.

When the car A26a is stopped, the elevator control system 22 outputs an open command for opening the door to the car A door control system 23a, and the car A brake control system 24a operates the brake (holds the car). Yes) ON command is output. In this case, the car B brake control system 24b also outputs an ON command from the elevator control system. The OFF to the car B brake control system 24b is output after the car B door control system 23b issues a close command and the car A door control system 23a outputs a close command. This is also the case in the opposite case.

In other words, in this embodiment, the elevator control system 2 will not be closed in any case unless the commands of the car A door control system 23a and the car B door control system 23b are closed.
The command of each car brake control system of 2 has a logic to keep ON.

If even one command from the elevator control to each door control system is open, the thrust command Fc from the elevator control system 22 to the linear motor control system is 0, and the car moves in the door open state. I try not to do it.
In this embodiment, the elevator control system 22 manages each car so as to synchronize the driving of the brakes and the linear motor with the opening of the door. It goes without saying that similar functions can be realized even if they are monitored. According to this embodiment, there is an effect that it is possible to avoid a danger such as car driving in a door open state.

Further, FIG. 13 also shows an embodiment of the starting compensation process in which the thrust is generated in the linear motor according to the number of passengers before the brake is released, and the car does not slide down when the brake is released so that the starting shock is small. .

That is, when the car is stopped, the elevator control system 22 takes in the weight Ma corresponding to the passenger weight of the car A26a and the weight Mb corresponding to the passenger weight of the car B26b, thereby obtaining a thrust to be generated in advance in the car A26a.
Thrust command Fc = g (Ma) of the car, thrust command F of the car B26b
c = g (Mb) is output to each linear motor control system 25a, 25b. After that, each car brake control system 24a,
Send an OFF command to 24b. As a result, a thrust force commensurate with the passenger weight is generated in each car, so that each car does not slip off even if the brake is released.

In this embodiment, the thrust is generated in advance in the linear motor of each car, but it may be carried out by one of the cars attached to the same rope system. further,
It goes without saying that the brake may be provided at one place in each rope system, for example, at any pulley portion in FIG.

In addition, taking in the number of passengers instead of the weight,
Similar functions can be realized by estimating the weight. In this case, the weight of the car itself may differ due to special specifications such as installation of an air conditioner. A similar function can be obtained by correcting the thrust command in consideration of this weight difference.

The above-described embodiment has the effect of reducing the shock at the time of starting the car. By the way, the linear motor is more likely to generate a thrust pulsation larger than that of the rotary electric motor due to the end effect or the like. This thrust pulsation causes a resonance phenomenon with the mechanical system including the rope, which may impair the riding comfort.

FIG. 13 also shows an embodiment for reducing the vibration due to the thrust pulsation. For example, when the car A26a and the car B26b are present in the ascending and descending hoistways, respectively, and when the car A26a and the car B26b oscillate in opposite phases and a secondary vibration of a rope system occurs, the current of the linear motor of the car A26a and the car The current phase command θa to the linear motor control system 25a of the car A and the current phase command θb to the linear motor control system 25b of the car B are set so that the current of the linear motor of B26b has an opposite phase with respect to the vibration frequency. . By doing so, vibration can be reduced.

When the primary vibration of the rope system in which the car A26a and the car B26b sway in the same phase occurs, the car A2
There is no effect even if there is a phase difference between the currents of the linear motors of 6a and the car B26b. Therefore, information about the vibration mode, vibration frequency, car position, etc. from each car is sent to the elevator control system 2
2 and adjust each linear motor current phase command and thrust command to achieve a stable vibration suppressing effect.

This embodiment has the effect of suppressing the vibration of the car.

As described above, in the embodiment of FIG. 13, two cars are shown, but the same configuration can be obtained even when there are three or more cars and three or more linear motors, and the same effect is obtained. Needless to say, is obtained.

FIG. 14 shows an example of emergency braking of a car. A pair of rope systems is extracted from FIG. 1 and unnecessary portions are omitted from the explanation of the arm mechanism. In this example, an acceleration detector 28a and an abnormal speed detector 28b are provided on the upper surface and the lower surface of each car, and the safety device 2 that operates based on the detection results is provided.
8c is provided.

Here, a mechanical or electric acceleration detector 2 is driven as the car moves in the vertical direction.
8a is attached to all cars, and when this detected value exceeds a predetermined value, it is judged to be abnormal, and the emergency stop device 2 is triggered.
8c (a device that shuts off the driving force, applies a mechanical brake, and grabs the rail) is installed in each car, and when at least one of the acceleration detectors 28a detects an abnormal value, it is connected by the rope system 3a. The interlocked control system is constructed so that the driving force of the linear motor mover 6c that drives the other car 5d is also cut off at the same time. As a result, even if the acceleration detector 28a detects an abnormal value, the linear motor mover 6c that drives the other car 5d attached to the rope continues to generate a driving force in a locked state. Can be avoided. Further, even if the connecting ropes between the cars are cut for some reason and each car starts to fall, the effect of providing an emergency stop for each car safely and reliably is produced. Needless to say, at this time, it is necessary to stop the drive of the sound rope system and stop the car.

An abnormal signal is generated when it is detected that the difference between the actual speed detected by the electric speed detector 28b and the speed command value is a predetermined value or more. When this abnormal signal is output, the drive force of the linear motor is shut off and the mechanical brake is applied. That is, when an abnormal speed of any one of the speed detectors 28b installed in each car is detected, the driving force of the linear motor mover 6c for driving the other car 5d attached to the rope is also cut off at the same time. We are constructing a system that is interlocked and controlled. As a result, if the speed detector 28b malfunctions, the linear motor mover 6c that drives the other car 5d connected by the rope system 3a does not detect the detector 28b operation of the other car 5d and locks. In this state, the driving force can be continuously generated, and it is possible to avoid such a defect that the linear motor mover 6c is burnt out. The speed detector 28b
Is used to control power supply to the linear motor.

FIG. 15 shows an embodiment of a car shock absorber according to the present invention. One set of rope system is extracted from FIG. 1, unnecessary parts are omitted for explanation of arm mechanism, and shock absorbers are provided on the upper and lower surfaces and left and right side surfaces of each car, and shock absorbers on the bottom of the hoistway.

In this system, the hoistway 1a, the hoistway 1
In the system, a shock absorber 29a is provided at the bottom of b, and shock absorbers 29b are provided on the upper and lower surfaces of each car and on the left and right side surfaces. A system in which a shock absorber 29a is provided at the bottom of the hoistway is used in a general elevator. However, in the multi-car type elevator, this conventional device can be used to solve the problem of collision with the bottom of the hoistway. However, the system has the possibility of collision with the preceding car and the succeeding car, and further with the possibility of collision with the uppermost car, and with respect to these abnormal states, the buffers 29b are provided in the respective cars as in the present embodiment. Or by providing a shock absorber 29a at the bottom of the hoistway, it is possible to reliably avoid injury to passengers in the car. At this time, if the shock absorber 29b has the function of the coupler 16 shown in FIG. 9, it is possible to provide an effect of softening the shock at the time of the coupling during the rescue operation.

Although the passenger car is described in the above-mentioned embodiments, the present invention can be applied to other than passengers, for example, for physical distribution and parking.

[0090]

According to the present invention, a plurality of ropes and a plurality of cars are provided in the hoistway, and at least one of the cars is
In order to move the car, a multi-motor type elevator can be driven with small power consumption by providing a linear motor type drive source between the car and the hoistway.

[Brief description of drawings]

FIG. 1 is a configuration of an embodiment of the present invention.

FIG. 2 is an example of matching the car position and the floor.

FIG. 3 is an example in which a boarding / alighting area is provided on a horizontal road.

FIG. 4 is an example of power supply by a trolley.

FIG. 5 is an embodiment relating to charging means with a battery.

FIG. 6 is an embodiment in which a primary side of a linear motor is provided on the hoistway side.

FIG. 7 is an example of a method for rescue and rescue of a car driving device.

FIG. 8 is an example of a safety device for an entire elevator.

FIG. 9 is an example of rescue operation when one rope system as a whole fails.

FIG. 10 is an example of a temporary reverse rotation operation in the circulation direction with respect to a car call.

FIG. 11 is an example of information display in a car.

FIG. 12 is an example in which a maintenance car is provided.

FIG. 13 is an example of linear motor control according to the present invention.

FIG. 14 is an example of emergency braking of a car.

FIG. 15 is an embodiment of a car shock absorber of the present invention.

[Explanation of symbols]

1a, 1b ... hoistway, 2a, 2b ... horizontal path, 3a, 3
b, 3c ... rope system, 4a, 4b, 4c, 4d ... pulley,
5a, 5b, 5c, 5d, 5e, 5f ... Car, 6a ... Elevating linear motor stator, 6b ... Horizontal linear motor stator, 6c ... Linear motor mover, 7 ... Power converter, 8
a ... power supply line, 8b ... trolley, 9a ... battery, 9b
... charger, 9c ... sensor, 10 ... boarding / alighting place, 13 ... rescue operation control device, 14 ... multi-car car operation management device, 1
5 ... Power source, 16 ... Coupler, 18 ... Information display device, 20 ...
Operation control panel.

Claims (15)

[Claims] 1. A plurality of hoistways provided in a vertical direction between a plurality of floors, horizontal paths provided on an upper side and a lower side connecting the two hoistways, and a plurality of rope systems. And at least one car connected to each rope system in an elevator in which two or more cars are attached to each rope system and the car moves through the two hoistways and the horizontal road by the rope system. An elevator characterized in that one car is provided with a drive source for moving the car. 2. The drive source according to claim 1, wherein the drive source is a hoistway,
An elevator comprising a linear motor stator provided on either or both of the horizontal paths and a linear motor mover provided on a car. 3. The elevator according to claim 2, wherein electric power is supplied to the stator side or electric power is supplied to the mover side. 4. The car according to claim 1, wherein when one of the two cars attached to the rope system matches a floor of a floor, the other car connected to the same rope system. An elevator characterized in that the car spacing is set so that the car also matches the floor of one of the floors. 5. The elevator according to claim 1, wherein the two hoistways or horizontal paths have different lengths. 6. The elevator according to claim 2, wherein, in the case of a structure for supplying electric power to the mover, the car is provided with a battery and a power conversion device and is used as a car driving power source. 7. The structure according to claim 2, wherein in the case where electric power is supplied to the mover, a trolley and a power converter are provided in the car, a power supply line is provided in the hoistway, and power is supplied from the power supply line. An elevator characterized by having a configuration. 8. The method according to claim 2, wherein when at least one car is stopped, the drive sources of other cars attached to the same rope system for the car also hold the stopped state. Elevator to do. 9. A drive source comprising at least one car linear motor and a power converter for feeding and controlling the linear motor according to claim 2, wherein:
An elevator characterized in that a driving source provided in the other car attached to the same rope system generates a driving force to move the one car to the nearest floor. 10. The elevator according to claim 2, wherein shock absorbers are provided above and below each car, respectively. 11. The elevator according to claim 2, wherein when an abnormality occurs in at least one car, all the cars are stopped to the nearest floor. 12. A vertically arranged space between a plurality of floors.
Two hoistways, horizontal paths provided on the upper and lower sides connecting the two hoistways, a plurality of rope systems, and two or more cars attached to each rope system, Thus, in the elevator in which the car moves through the two hoistways and the horizontal road, each car has a connecting means on the upper and lower sides of the car, and one car of the rope system fails and the car stops. In this case, an elevator characterized in that another set of rope system cars is connected by the connecting means to perform a rescue operation of the stopped car. 13. The method according to claim 3, wherein the physical change amount of each car attached to one rope system is detected, and the cars are operated in synchronization in accordance with each change amount. An elevator characterized by individually controlling the magnitude of the output of each power converter. 14. A vertical arrangement between a plurality of floors.
Two hoistways, horizontal paths provided on the upper and lower sides connecting the two hoistways, a plurality of rope systems, and two or more cars attached to each rope system, In the elevator in which the car moves through the two hoistways and the horizontal path, at least one car connected for each rope system has a linear motor for moving the car, and all acceleration detectors are provided. Mounted on a car and driving an emergency stop device that operates when at least one of the acceleration detectors outputs an abnormal value, and another car attached to the same rope system depending on whether the emergency stop device operates. An elevator characterized in that it is interlocked so that the driving force of a linear motor is also cut off at the same time. 15. A vertically arranged space between a plurality of floors.
Two hoistways, horizontal paths provided on the upper and lower sides connecting the two hoistways, a plurality of rope systems, and two or more cars attached to each rope system, In the elevator in which the car moves through the two hoistways and the horizontal path, at least one car connected to each rope system has a linear motor for moving the car, and is installed in each car. When any one of the speed detectors detects an abnormal speed, the elevator is interlocked so as to simultaneously cut off the driving force of the linear motor that drives another car connected by the rope. .