JP3056885B2 - Self-propelled elevator - Google Patents

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 moving 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 a hoistway of a high-rise building.
A hoist 100 is installed. Also, this hoisting machine 100
A hoisting rope 90 is wound around the hoisting drum 101, and one end of the hoisting rope 90 is
0 is attached, and a counter weight 11 is connected to the other end of the hanging rope 90.

Accordingly, the above-described rope-type elevator drives the hoisting machine 100 to drive the hoisting machine 1.
00 through the hanging rope 90 wound around the car 10
And the counter weight 11 are alternately moved up and down to a desired floor. However, the above-mentioned rope-type elevator has a limit on the height of elevation due to its own 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.

[0006] First, there is a limit to the up-and-down stroke due to the weight of the rope. Although it is possible to sufficiently cope with an ascending and descending stroke of a building that is currently in practical use, this point poses a problem as a high-stroke and high-speed transportation means when an ultra-high-rise building is realized. Second, the direction in which the vehicle can travel due to the use of the rope is limited. Usually can move in the vertical direction, but cannot move freely in the lateral direction.

Third, only one elevator can travel on one hoistway. Therefore, the transport capacity is limited, and the number of hoistways corresponding to the required transport capacity is required to secure the required transport capacity. Buildings must provide significant space for lifting equipment. This is a problem for mass transit.

Fourthly, a machine room for installing a hoisting machine immediately above or near the hoistway is required, and the hoistway dimensions are such that the counterweight moves in addition to the space for the car to move. Space is also required.

Recently, as a solution to the above-mentioned problem, a primary coil is provided on a hoistway wall side and a secondary conductor is provided on a car side as disclosed in Japanese Patent Application Laid-Open No. 2-261789. One that raises and lowers a car using a force that interacts with a coil and a secondary conductor has been considered.

However, the one described in the above publication is
Although a plurality of cars can move in the hoistway,
Since each car moves along the guide rails provided on the hoistway side, the car traveling lower always travels immediately below the upper car, resulting in lower operating efficiency.

As described above, in order to obtain an advantage in terms of operation efficiency, a system in which a plurality of cars are operated in the same hoistway is considered. However, the plane size of the hoistway is equivalent to that of one car. If only the dimensions that can be traveled are secured, each car can not pass and it is not possible to change the vertical relationship of all the cars put into the hoistway, so the lower car is moved to the uppermost position or the upper The car may not be able to reach the lowermost position. In addition, since the operation of an arbitrary car is affected by the position of the other car, the state of stopping / running, and the traveling direction, it is difficult to reach the destination floor smoothly.

An object of the present invention is to allow each car to pass smoothly so that each car can operate smoothly even when a plurality of cars are put into the hoistway, and to pass smoothly and quickly when passing. It is an object of the present invention to provide a self-propelled elevator capable of efficiently operating a hoistway with a plurality of cars.

[0013]

According to the present invention, a plurality of vertical secondary conductors of a linear motor buried vertically in a side wall of a hoistway and loops are formed at upper and lower ends of each of the vertical secondary conductors. , A horizontal secondary conductor of a linear motor buried and connected thereto, at least two or more bypass secondary conductors inclined and connected between the vertical secondary conductors, and running along these secondary conductors. a car provided with a primary coil of the linear motor to the side surface, a plurality of wheels steerable by keeping the horizontal state the cab travels guiding sidewall of the hoistway provided in the car, the hoistway The self-propelled elevator is constituted by a car stopping means provided on the side wall of the car for stopping the car in an emergency.

[0014]

[Function] The car is freely driven in the elevator by the magnetic force generated between the secondary conductor of the linear motor buried vertically or horizontally on the side wall of the hoistway and the primary coil provided in the car. It is possible to move quickly to the adjacent hoistway along the bypass secondary conductor, and the wheels provided on the car are steered to keep the car horizontal when moving to the adjacent hoistway. The car stopping means stops 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 this embodiment, a primary coil of a linear motor is provided in the car to enable the car itself having a drive unit to be able to travel and stop independently, and the secondary conductor is moved up and down on the hoistway side wall. By burying the entire stroke, the car and the hoistway form a linear motor. A system is conceivable in which electric power is supplied to a primary coil of a car to drive a linear motor to move the car in a hoistway, that is, to raise and lower the car. Further, in the present invention, the embedment position of the primary coil of the linear motor is set to both sides sandwiching the car entrance and the thrust from two places acts on the car.

Further, in order to ensure a higher overall operation efficiency compared to the conventional system without significantly increasing the area occupied by the system, a method of introducing a plurality of cars and operating smoothly is introduced. In the present embodiment, two single hoistways having a plane dimension enough to arrange three cars are set, and one is dedicated to ascent operation and the other is dedicated to ascent operation. In addition, the top of the hoistway is used to supply the raised car to the descending hoistway and the lowered car to the hoisting hoistway.
The lower part is connected and the car can be moved.

In order to move up and down in the hoistway, which is a space in which an arbitrary car is limited under the above-mentioned conditions, as much as possible without being restricted by the movement of other cars, it is necessary to secure a plurality of routes for getting on and off and passing. The control is performed so that the user arrives at the target floor while appropriately selecting these routes.

In this embodiment, only one of three routes in one direction has a landing-side entrance. It is necessary to perform the getting on and off route on the getting on and off route with the entrance on the platform side, but there is no problem to use any of the plurality of routes if the door is closed and the vehicle can be run. By operation control, the user moves up and down while selecting a route that can smoothly move to the destination floor. FIG. 1 is a schematic diagram of an entire system of the present invention in which two sets of three single traveling paths are provided and a plurality of cars are put into a 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 opposing side surfaces. Further, a steerable wheel 40 as a guide device when the car 10 moves vertically and horizontally in the hoistways 31a, 31b, 31c and a current collector for collecting power for driving, controlling and lighting the car. 50, has an entrance 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 stick to 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 traversing operation.

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

As shown in FIG. 2, the landing entrances 81 and 82 are provided on one side of the hoistway wall. Three pairs of secondary conductor paths are provided in the hoistway, and 70a, 70b, 70
c, the secondary conductor track 70a is used for "get on and off", the secondary conductor track 70b is used for "running", and the secondary conductor track 70c is used for "overtaking".
Operate each for “forwarding”.

In FIG. 1 to FIG. 4, hoistways having dimensions equivalent to three cars are arranged in two rows. One hoistway 31 is used for ascending operation, and the other hoistway 32 is used for descending operation. As shown in FIG. 3, three vertical movement secondary conductor paths 70a, 70b, 70c are laid in parallel on each hoistway, and a cage is provided between adjacent vertical movement secondary conductor paths. A traverse bypass secondary conductor 71 for changing the secondary conductor path is buried at a plurality of locations. FIG. 5 is a diagram showing the car structure in the present system in detail.

The car 10 is provided with a primary coil 20 at a position facing a secondary conductor buried in a hoistway on a side surface thereof. Further, when moving from the hoistway where the car is currently located to the adjacent hoistway, four wheels 40 to be steered are provided on the same side where the primary coil is provided while maintaining the horizontal state of the car. . FIG. 6 shows the state of steering 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 moving to the adjacent hoistway, the eight wheels 40 steer along the traverse bypass secondary conductor 71 so that the car moves, but at the same time, the car 10
Is steered to keep it level. FIG. 7 and FIG. 8 are configuration diagrams of the car stopping means that operates in an emergency.

In FIG. 7, a stop rod 90 is provided on the wall of the hoistway.
For example, at the time of a power failure or the like, a control device (not shown) causes the blocking rod 90 to project toward the hoistway by the force of the spring 91. The car 10 is received by the stop bar 91 by the protrusion of the stop bar 91.

In FIG. 8, a stop rod 92 is buried in a hoistway wall such that one end thereof can rotate about a shaft 95 and the other end thereof is pressed by a hook 93 while a spring 94 is pressed. ing. During normal operation, the car 10 can move up and down freely because the blocking rod 92 is buried in the hoistway wall.

However, in an emergency such as a power failure, the hook 93 is operated by the control circuit (not shown), and the operation of the control rod 92 is made free. As a result, the stop rod 92 is moved toward the hoistway by the force of the spring 94, and the hoistway is fitted. In this state, the car 10 is moved by the action of the stop rod 92 and the spring 94.
The speed is reduced and stopped. The operation of the embodiment of the present invention will be described based on FIG.

In the elevator car 10, the current collector 50 receives power for driving from the power supply line and generates an attractive / repulsive force between the primary coil 20 of the car and the secondary conductor 70a, 70b or 70c on the hoistway side. Raise and lower the basket.

Passengers get on and off at the secondary conductor path 31a for boarding and exiting which is in contact with the landing entrances 81 and 82, and move up and down to the destination floor in response to calls in the car and hall calls assigned to the car. The ascending and descending uses the ascending and descending secondary conductor track 70a. However, if there is another car 10a in the path to the destination floor or if it is determined that such a state will occur, the traversing secondary conductor path is used.
Using 71, it moves to the secondary conductor path 31b for traveling and moves up and down. In the vicinity of the destination floor, the passenger returns to the secondary conductor path 31a for getting on and off again and reaches the destination floor.

[0031] The overtaking secondary conductor path 31c is used for direct driving when a car with no passengers is forwarded to a specific floor, an alternative line when a failure occurs in the driving path, and when traffic demand is small. It is used as a standby space for surplus cars.

In summary, in a situation where the traffic demand for the elevator is smaller than the number of vehicles entered, the secondary conductor path 31a for getting on and off is mainly operated and the secondary conductor path 31b for traveling is used as needed. As the traffic demand increases, the three secondary conductors including the overtaking secondary conductor 31c are utilized to secure the transportation capacity and maintain the service level. By using a self-propelled linear motor elevator, the following effects can be obtained as compared with a conventional elevator.

First, since no hanging rope is used, there is no limit to the up-and-down stroke. Therefore, it can be used as a high-stroke 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 is required such that a large hoistway area is required, a large number of elevators larger than the limited hoistway area can be put in and operated, so that a transport capacity and service more than conventional elevators can be obtained.

Third, there is no need for a machine room for installing a hoisting machine immediately above or near the hoistway, which is required for conventional elevators. Further, it can be said that a space for moving the hoistway interlocking weight is unnecessary, and the effective utilization rate is high.

Fourth, it is possible to provide an elevator with a simpler car structure and a better balance in terms of running control. Since the thrust is applied to both sides of the car, no twisting or cantilever is applied to the frame supporting the cab. Therefore, the weight of the car structure can be reduced and the weight of the entire car can be reduced, so that the capacity required to obtain the necessary thrust is smaller than that of the system in which the linear motor is provided on one back surface of the car. There is little effect.

[0037]

According to the present invention, there are few entrances and exits on the landing side provided on each floor despite the fact that many elevator cars are put in and operated.
This is because the entry / exit route where the car stops is one for each of the ascending and descending routes. As a result, it is possible to reduce the manufacturing and installation costs associated with the entrance on the landing side, and to minimize the required floor area of the elevator landing.

At the time of transition to the adjacent hoistway, the car is operated along the inclined bypass secondary conductor, so that the car can be smoothly transitioned. In order to keep it, the safety for passengers in the car is very high.

[Brief description of the drawings]

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

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

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

FIG. 4 is a perspective view when a car is arranged in the perspective view of FIG. 3;

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

FIG. 6 is a diagram showing a state of operation of a wheel according to the present invention.

FIG. 7 is a configuration diagram of an embodiment of a car stopping means according to the present invention.

FIG. 8 is a configuration diagram of an embodiment of a restraining means, similarly to FIG. 7;

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

[Explanation of symbols]

 10 ... elevator car 11 ... counterweight 20 ... linear motor primary coil 31 ... hoisting hoistway 31a ... hoisting hoistway (for getting on and off) 31b ... hoisting hoistway (for running) 31c ... hoisting hoistway (for passing Forwarding 32) Getting-off hoistway 32a ... Getting-off hoistway (for getting on and off) 32b ... Getting-off hoistway (for running) 32c ... Getting-off hoistway (for passing / forwarding) 40 ... Wheels 50 ... Current collector 60 … Car entrance 70a, 70b, 70c… Linear motor secondary conductor 80… Platform entrance 81… Climb landing entrance 82… Ramp entrance 90… Rope 100… Winding machine 101… Wearing sheave 102… Electric motor

Claims (4)

(57) [Claims] 1. A plurality of vertical secondary conductors of a linear motor vertically embedded in a side wall of a hoistway, and a linear motor embedded and connected to form upper and lower ends of each vertical secondary conductor so as to form a loop. A horizontal secondary conductor of the motor, at least two or more bypass secondary conductors which are inclined and connected between the vertical secondary conductors, and a primary coil of the linear motor on a side surface running along these secondary conductors. The provided car, a plurality of wheels provided on this car and capable of guiding the running of the side wall of the hoistway and maintaining the car in a horizontal state and capable of steering, and the emergency car provided on the side wall of the hoistway A self-propelled elevator having a car stopping means for stopping a car. 2. The car restraining means comprises: the vertical secondary conductor;
The self-propelled type according to claim 1, wherein the self-propelled type operates when at least one of the horizontal secondary conductor, the bypass secondary conductor, and the primary coil provided in the car is cut off. elevator. 3. The self-propelled car according to claim 2, wherein said car stopping means comprises a stopping means buried in said hoistway and a projecting means for projecting said stopping means into said hoistway. elevator. 4. The self-propelled elevator according to claim 3, wherein said projecting means comprises an electromagnetic coil and a coil spring which is opened when power to said electromagnetic coil is cut off. "