JPH069175A - Self-operating elevator - Google Patents

Abstract

PURPOSE:To allow a passing operation and to obtain a high operating efficiency by providing plural elevator shafts in which the secondary conductor of a linear motor is buried vertically or horizontally to the side wall, and composing the system to allow to transfer a cage to a neighboring shaft along a bypass secondary conductor. CONSTITUTION:Elevator shafts 31 and 32 which have a size to arrange three cages 10 are provided in two lines, and one side shaft 31 is used for the upward operation while the other side shaft 32 for the downward operation. While secondary conductor passages 70a to 70c for vertical movement are lined parallel to the shafts 31 and 32, bypass secondary conductors 71 for traverse to make the cage convert the secondary conductor passage are buried at plural positions between the neighboring secondary conductors for vertical movement. On the other hand, while a primary coil 20 positioning opposite to the secondary conductor buried in the shafts 31 and 32 is provided to the side surface of the cage 10, four wheels 40 steered while maintaining the cage in the horizontal condition when the cage is transferred from the present shaft to the neighboring shaft are provided respectively to the side surface where the primary coils 20 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled elevator which moves vertically and horizontally in a hoistway.

[0002]

2. Description of the Related Art FIG. 9 is a schematic view of a conventional elevator.

That is, in FIG. 9, a machine room is provided above the hoistway of a high-rise building.
A hoisting machine 100 is installed. Also, this hoisting machine 100
A hoisting drum 90 is wound around a hoisting drum 101, and one end of the hoisting rope 90 is attached to the car 1
0 is attached, and a cowter weight 11 is connected to the other end of the suspension rope 90.

Therefore, in the rope type elevator described above, the hoist 1 is driven by driving the hoist 100.
Car 10 through a hanging rope 90 wound around 00
And the cowter weight 11 are alternately moved up and down to the desired floor. However, the above-described rope-type elevator has a limit in vertical height due to the weight of the hanging rope 10, and it is difficult to use the elevator as it is in a high-rise building.

[0005]

The conventional elevator system has the following problems.

First, there is a limit to the lifting stroke due to the weight of the rope. Although it is possible to sufficiently cope with the ascent / descent stroke of a building that is currently in practical use, this is a problem for high-stroke / high-speed transportation means when an ultra-high-rise building is realized. Secondly, since the rope is used, the traveling direction is limited. You can usually move vertically, but you cannot freely move laterally.

Third, only one elevator can travel in one hoistway. Therefore, the transportation capacity is limited, and in order to secure the necessary transportation capacity, the number of hoistways corresponding to that is required. The building must provide considerable space for the lifting equipment. This is a problem for mass transportation.

Fourthly, a machine room for installing the hoisting machine is required immediately above the hoistway or in the vicinity thereof, and the size of the hoistway is not only the space for the car to move but also the counterweight moves. Space is also required.

Further, recently, as a solution to the above-mentioned problems, a primary coil is provided on the hoistway wall side and a secondary conductor is provided on the car side as described in JP-A-2-261789. It is considered that the car is moved up and down by utilizing a force that interacts with the coil and the secondary conductor.

However, the one described in the above publication is
Although multiple cars can move in the hoistway,
Since each car is moved along the guide rails provided on the hoistway side, the car traveling in the lower order always travels directly under the upper car, resulting in low operating efficiency.

As described above, in order to obtain an advantage in terms of operation efficiency, it is considered to operate a plurality of cars in the same hoistway, but the plane size of the hoistway is equivalent to that of one car. Each car cannot overtake if it can only travel, and it is not possible to change the vertical relationship of all cars thrown into the hoistway. The car may also be unable to reach the lowest position. Further, it is difficult to smoothly reach the destination floor because the operation of an arbitrary car is influenced by the positions of other cars, the states of stop / running, and the traveling direction.

An object of the invention is to allow overtaking so that even when a plurality of cars are thrown into the hoistway, each car can operate smoothly, and at the time of overtaking, overtaking can be done smoothly and quickly. It is possible to provide a self-propelled elevator capable of efficiently operating a hoistway with a plurality of cars.

[0013]

SUMMARY OF THE INVENTION According to the present invention, a plurality of vertical secondary conductors of a linear motor vertically embedded in a side wall of a hoistway and loops are formed at the upper and lower ends of each vertical secondary conductor. A horizontal secondary conductor of a linear motor which is connected to and buried in the vertical motor, at least two bypass secondary conductors which are inclinedly connected between the vertical secondary conductors, and run along these secondary conductors. A car having a primary coil of a linear motor on its side surface, a plurality of wheels provided on the car to guide the side wall of the hoistway and maintain the car in a horizontal state, and steerable wheels; A self-propelled elevator is constituted by a car restraining means for restraining a car.

[0014]

The magnetic force generated between the secondary conductor of the linear motor, which is vertically or horizontally embedded in the side wall of the hoistway, and the primary coil provided in the car allows the car to travel freely up and down in the hoistway. There is a quick transition to the adjacent hoistway along the bypass secondary conductor, and the wheels on the car are steered to keep the car level during the transition to the adjacent hoistway. , The car restraint means restrains the car in an emergency.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to the drawings. In the present embodiment, the car itself has a drive device for elevating and lowering passengers, and a primary coil of a linear motor is provided in the car so that the car can be independently started and stopped, and a secondary conductor is installed on the side wall of the hoistway. By embedding it over the entire stroke, the car and the hoistway form a linear motor. A system is conceivable in which electric power is supplied to the primary coil of the car to drive the linear motor and the car is moved in the hoistway, that is, the car is moved up and down. Further, in the present invention, the embedded position of the primary coil of the linear motor is set to both sides sandwiching the car entrance / exit, and thrusts from two places act on the car.

Furthermore, in order to secure a high overall operating efficiency as compared with the conventional system without greatly expanding the area occupied by the system, a method of introducing a plurality of cars and smoothly operating the system will be introduced. In this embodiment, two single hoistways each having a plane dimension in which three cars are arranged side by side are set, one of which is dedicated to the ascending operation and the other is dedicated to the descending operation. In addition, the top of the hoistway is used to supply the ascended car to the descending hoistway and the descended car to the ascending hoistway.
The lower part shall be connected so that the car can be moved.

Under the conditions set above, in order to ascend and descend within the hoistway, which is a space in which any car is limited, without being restricted by the movement of other cars as much as possible, after securing a plurality of routes for getting on and off and overtaking. , Control to arrive at the target floor while appropriately selecting those routes.

In this embodiment, only one of the three lines in one direction has a landing gate. It is necessary to get on and off the line for entry and exit with entrances and exits on the platform side, but there is no problem if you use any of the multiple lines as long as you can run with the door closed. By operation control, it moves up and down while selecting a route that can smoothly move to the target floor. FIG. 1 is a schematic view of the entire system of the present invention in which two sets of three single running paths are provided and a plurality of cars are thrown into the hoistway connecting the uppermost part and the lowermost part thereof.

As shown in FIG. 2, as a basic system of the present invention, an elevator car 10 has a primary coil 20 of a linear motor mounted on two opposite side surfaces. In addition, as a guide device when the car 10 moves vertically and horizontally in the hoistways 31a, 31b, 31c, steerable wheels 40 and a current collector for collecting electric power for driving, controlling and illuminating the car. 50, a doorway 60 provided on the side for passengers to get on and off.

The wheels 40 of the car are mounted around the car 10 so as to be stretched in the hoistway. The wheels 40 not only move along the hoistway, but also have a steering function to change the direction while keeping the car horizontal during a traverse operation.

A secondary conductor 70 of a linear motor is buried in the hoistway wall so as to face the primary coil 20 over the entire hoisting stroke. The two secondary conductors 70a, 70b, 70c are provided so as to sandwich the car in pairs, and hold and drive the car with a left-right balance together with two sets of primary coils 20 mounted on both sides of the car 10. . A device that drives and controls this system is installed outside the hoistway.

As shown in FIG. 2, the entrances and exits 81 and 82 are provided on one side of the hoistway wall. Three pairs of secondary conductor paths are provided in the hoistway, and from 70a, 70b, 70 from the side near the entrances 81, 82 on the landing side.
c, the secondary conductor path 70a is for "getting on / off", the secondary conductor path 70b is for "traveling", and the secondary conductor path 70c is "overtaking / passing".
Operate each for "forwarding".

In FIGS. 1 to 4, hoistways having a size of three cars lined up are arranged in two rows. One hoistway 31 is for ascending operation, and the other hoistway 32 is for descending operation. As shown in FIG. 3, three vertical conductor paths 70a, 70b, and 70c for vertical movement are laid in parallel in each hoistway, and a car is provided between adjacent secondary conductor paths for vertical movement. Transverse bypass secondary conductors 71 for changing over the secondary conductor paths are embedded in a plurality of locations. FIG. 5 is a diagram showing in detail the car structure in this system.

A primary coil 20 is provided on the side surface of the car 10 at a position facing the secondary conductor embedded in the hoistway. Further, when the car is moved from the hoistway to the adjacent hoistway, four wheels 40 to be steered are provided on the same side surface where the primary coil is provided while maintaining the horizontal state of the car. . Further, FIG. 6 shows a steering state of the wheels 40 when the car 10 moves to the adjacent hoistway.

That is, the wheels 40 are held vertically while moving up and down the same hoistway. When shifting to the adjacent hoistway, the eight wheels 40 steer along the traverse bypass secondary conductor 71 so that the cage shifts.
Is steered to keep horizontal. 7 and 8 are configuration diagrams of the car restraining means that operates in an emergency.

In FIG. 7, a stop bar 90 is provided on the wall of the hoistway.
The control rod (not shown) causes the stop rod 90 to project toward the hoistway by the force of the spring 91, for example, when a power failure occurs. When the stop bar 91 projects, the car 10 is received by the stop bar 91.

Further, in FIG. 8, one end of the stop rod 92 is embedded in the hoistway wall so as to be rotatable around the shaft 95, and the other end is pressed by the hook 93 while pressing the spring 94. ing. During normal operation, the stop bar 92 is buried in the hoistway wall, so that the car 10 can freely move up and down.

However, in an emergency such as a power failure, the hook 93 is operated by the control circuit (not shown), and the stop rod 92 is free to operate. As a result, the stop rod 92 is moved to the hoistway side by the force of the spring 94, and the hoistway is fitted. In this state, the cage 10 is moved by the action of the stop rod 92 and the spring 94.
The speed is slowed down and stopped. The operation of the embodiment of the present invention will be described with reference to FIG.

In the elevator car 10, the current collector 50 receives power for power from the power supply line to generate attraction / repulsion between the primary coil 20 of the car and the secondary conductor 70a, 70b or 70c on the hoistway side. Lifts and stops the car.

Passengers get on and off the secondary conductor path 31a for getting on and off, which is in contact with the entrances 81, 82 of the halls, and they go up and down to the destination floor in response to a call inside the car or a hall call assigned to the car. The ascending / descending secondary conductor path 70a is used, but if there is another car 10a in the course to the destination floor or if it is determined that such a situation will occur, the traverse secondary conductor path 70a.
Using 71, it moves to the traveling secondary conductor path 31b and goes up and down. Near the target floor, the vehicle again returns to the boarding / alighting secondary conductor path 31a and reaches the destination floor.

The overtaking secondary conductor path 31c is a direct line operation when forwarding a car not loaded with passengers to a specific floor, or an alternative line when the road cannot be used due to an obstacle on the road, or when there is little traffic demand. It is used as a standby space for the surplus car.

In summary, in the situation where the traffic demand for the elevator is smaller than the number of vehicles input, the boarding / alighting secondary conductor path 31a is mainly operated and the traveling secondary conductor path 31b is used as necessary. As the traffic demand increases, the transportation capacity can be secured and the service level can be maintained by utilizing the three secondary conductor paths including the overtaking secondary conductor path 31c. By using the self-propelled linear motor elevator, the following effects can be obtained as compared with the conventional elevator.

First, since the rope for hanging is not used, there is no limit to the lifting stroke. Therefore, it can be used as a high travel and high speed transportation means when an ultra-high-rise building is realized.

Second, the number of conventional elevators is large,
That is, when a large amount of transportation capacity that requires a large hoistway area is required, a large number of elevators more than the number of elevators corresponding to the limited hoistway area can be put in and operated, so that the transportation capacity and service more than those of conventional elevators can be obtained.

Thirdly, there is no need for a machine room for installing the hoisting machine directly above the hoistway or in the vicinity thereof, which is required for the conventional elevator. Furthermore, it can be said that the effective utilization rate is high because no space is required for the hoistway weights to move.

Fourth, it is possible to provide an elevator having a simple car structure and a good balance in terms of traveling control. Since thrust is applied to both sides of the car, the frame that supports the cab will not be twisted or cantilevered. Therefore, the car structure can be made lighter and the weight of the car as a whole can be suppressed. Therefore, the capacity required to obtain the necessary thrust is also greater than that of the system in which the linear motor is provided on one rear surface of the car. It has the effect of being small.

[0037]

[Effects of the Invention] Although many elevator cars are put in and operated, the number of entrances and exits on the side of the landing provided on each floor is small.
This is because there is only one car going up and down to stop the car. This will reduce the cost of manufacturing and installation work related to the entrances and exits at the platform, and will also have the effect of minimizing the required floor area of the elevator platform.

When the car is moved to the adjacent hoistway, the car is operated along the bypass secondary conductor that is inclined, so that the car can be smoothly transferred. In order to keep it, the safety for passengers in the car is also very high.

[Brief description of drawings]

FIG. 1 is an overall view of an example system according to the present invention.

FIG. 2 is a plan view of a hoistway in FIG.

3 is a perspective view of the hoistway of FIG. 1. FIG.

FIG. 4 is a perspective view when a car is arranged in the perspective view of FIG.

FIG. 5 is a configuration diagram of a car according to the present invention.

FIG. 6 is a diagram showing how a wheel operates in the present invention.

FIG. 7 is a configuration diagram of an embodiment of car restraining means in the present invention.

FIG. 8 is a configuration diagram of an embodiment of a stopping means, similar to FIG.

FIG. 9 is a schematic diagram of a conventional elevator.

[Explanation of symbols]

 10… Elevator car 11… Balance weight 20… Linear motor primary coil 31… Ascending hoistway 31a… Ascending hoistway (for getting on and off) 31b… Ascending hoistway (for running) 31c… Ascending hoistway (overtaking Forwarding) 32… Descent hoistway 32a… Descent hoistway (for getting on and off) 32b… Descent hoistway (for traveling) 32c… Descent hoistway (for overtaking and forwarding) 40… Wheels 50… Current collector 60 … Car entrance / exit 70a, 70b, 70c… Linear motor secondary conductor 80… Hall entrance / exit 81… Ascent entrance entrance / exit 82… Entrance entrance / exit 90… Rope 100… Hoisting machine 101… Stand wheel 102… Electric motor

Claims (4)

[Claims] 1. A plurality of vertical secondary conductors of a linear motor which are vertically embedded in a side wall of a hoistway, and linear embedded conductors which are connected so as to form a loop at the upper and lower ends of each vertical secondary conductor. A horizontal secondary conductor of the motor, at least two or more bypass secondary conductors that are inclinedly connected between the vertical secondary conductors, and a primary coil of a linear motor on a side surface that runs along these secondary conductors. A provided car, a plurality of wheels provided on the car that can be steered by guiding the side walls of the hoistway to maintain the car in a horizontal state, and car restraining means for stopping the car in an emergency A self-propelled elevator having and. 2. The car restraining means is at least one of the vertical secondary conductor, the horizontal secondary conductor, the bypass secondary conductor, and the primary coil provided in the car.
The self-propelled elevator according to claim 1, wherein the self-propelled elevator operates when power is cut off from one of them. 3. The self-propelled vehicle according to claim 2, wherein the car restraining means includes a restraining means embedded in the hoistway and a projecting means for projecting the restraining means into the hoistway. elevator. 4. The self-propelled elevator according to claim 3, wherein the projecting means comprises an electromagnetic coil and a coil spring which is opened when the energization of the electromagnetic coil is cut off.