JP2875112B2 - 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 driven by a linear motor without using a hanging rope.

[0002]

2. Description of the Related Art In recent years, a self-propelled elevator that raises and lowers a car by driving a linear motor has been proposed in place of the conventional rope type elevator. For example, Japanese Unexamined Patent Publication
No. 261789 and JP-A-3-272987.

[0003] In these, a primary coil of a linear motor is provided on the inner wall of a hoistway, a secondary conductor is provided on a car side, and a plurality of units are used by utilizing the interaction between the primary coil and the secondary conductor. In this configuration, the cars are moved up and down in the hoistway.

[0004] In such a self-propelled elevator driven by a linear motor, the present applicant has further developed and proposed the following automatic elevator as a promising one from the viewpoint of reality.

[0005] In this method, first, primary coils of a linear motor are provided on both left and right outer sides of a doorway of a car, respectively.
By attaching secondary conductors to the opposite side walls of the hoistway throughout the hoisting path of the car, the car and the hoistway form linear motors on both left and right sides. Configuration.

[0006] The hoistway has an up-only road and a down-only road, and a car ascending the up-only road becomes a down-only road, and a car descending down the down-only road becomes an up-only road. A traversing path for transition is provided at the uppermost part and the lowermost part, so that a plurality of cars can climb up and down by following a loop-like path one after another.

[0007] Further, the ascending and descending exclusive road of the hoistway is configured such that the car has a plurality of hoistway sections each capable of ascending and descending in parallel in the depth direction from the landing doorway, so that the car can be used for passing on and off. This system is capable of securing routes for use, etc., and controlling such that a plurality of cars can arrive at a target floor without being restricted as much as possible by the movements of other cars while selecting these routes as appropriate.

[0008]

By the way, in the above-mentioned proposal, primary coils of a linear motor are provided on both left and right outer sides of a car, and secondary conductors are provided on both side walls in the hoistway opposed to the primary coils. By doing so, thrust is exerted on two cars on the left and right sides of one car to secure the necessary thrust, which is particularly problematic as a self-propelled elevator.

However, with the current linear motor technology, it is still difficult to secure a large thrust, and it is difficult to increase the capacity of the car in order to reduce the weight of the car as much as possible. I will be forced.
For this reason, there is not much problem in a time zone where elevator users are few and dispersed, but it is necessary to secure a large transportation capacity in a time zone where passengers are concentrated such as morning work time and lunch time. This is necessary, and as described above, the transportation capacity of one car is small, so that even if a plurality of cars are efficiently operated, a problem occurs that a large number of passengers cannot be easily handled.

The present invention has been made in view of the above-mentioned circumstances, and its object is to provide a self-propelled type in which a car is moved up and down by driving a linear motor, but the size of the self-propelled car can be increased as necessary, especially during a time when users are concentrated. It is an object of the present invention to provide a self-propelled elevator capable of securing transportation power.

[0011]

According to the present invention, there is provided a self-propelled elevator in which a car moves up and down by a linear motor drive in an elevator hoistway.
The hoistway is configured to have a plurality of hoistway parts each of which a car can ascend and descend in parallel in a depth direction from a landing doorway, and a car arranged to be able to ascend and descend to at least the foremost hoistway part is a landing doorway device. In addition to having a car doorway device that opens and closes in conjunction with the car, a rear doorway device that maintains a closed state at normal time is also provided on the rear surface opposite to this, and when a large amount of passengers are transported, the front hoistway part The vehicle is provided with connecting means for connecting the car and the car arranged to be able to ascend and descend to the rear hoistway part in parallel so that the car can be lifted and lowered together in front and rear. A car doorway device is provided which opens in conjunction with a rear doorway device of a car at a road portion and opens and closes the front and rear cars to each other so as to be in an internal communication state.

[0012]

According to the self-propelled elevator having the above-described structure, in a time zone when the number of elevator users is small, each car is separated and independently moved up and down independently by the linear motor drive to transport the passengers. Also, if it is necessary to secure a large transport capacity such as morning work time or lunch, the ride arranged at the front hoistway part of the hoistway and the ride arranged at the rear hoistway part Are connected by the connecting means, and the rear entrance / exit device of the front car and the rear entrance / exit device of the rear car are opened in conjunction with each other, so that the front and rear cars are connected in parallel in the front and rear and internally connected. The passengers who climbed up and down together with the linear motor drive in the same state as they were, and got into the car on the front side of the landing can pack it in the car on the rear side as it is, compared to when the car operates alone. It can transport twice as many passengers at a time, securing a large transport capacity. At this time, the front and rear cars are connected to each other while being internally communicated with each other, but since they are individually driven by linear motors, a necessary and sufficient thrust can be obtained and the vehicle can ascend and descend reliably.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a self-propelled elevator which moves up and down by driving a linear motor according to the present invention will be described below with reference to the drawings. 1 is a cross-sectional view at an intermediate height position of a hoistway 1 constructed in a building, FIG. 2 is a schematic configuration diagram in which a part of the hoistway 1 is also omitted, and FIG. It is a schematic block diagram.

Here, as shown in FIGS. 1 and 2, the hoistway 1 has an up-only path 11 and a down-only path 12 in parallel on the left and right. A traversing road 1 connecting the road 12 at least at the upper and lower ends
3 and 14 are provided. The hoistway 1
Each of the up-only road 11 and the down-only road 12 has a landing entrance / exit device 15 connected to each floor of the building in front of each.

The up-only path 11 and the down-only path 12 of the hoistway 1 are respectively a plurality (three) of hoistway sections 11a, 11 each of which can be moved up and down by the car 2 respectively.
b, 11c and 12a, 12b, 12c are arranged in parallel from the landing entrance / exit device 15 in the depth direction. In other words, the up-only path 11 and the down-only path 12 of the hoistway 1 are each configured to have a plane space dimension such that three cars 2 can be lifted and lowered in parallel in the depth direction. The traversing paths 13 and 14 also have a space dimension such that three cars 2 can be traversed in parallel in the depth direction.

The secondary conductors 16 of the linear motor are provided on the right and left side wall portions of the up-only road 11 and the down-only road 12 of the hoistway 1 over the entire area of the hoisting process of the car 2. . Each of the secondary conductors 16 is also wide in the depth direction (front-back direction) of each of the up-only path 11 and the down-only path 12, and a plurality of hoistway sections 11a, 11b, 11 and 12a, 12b, 12
c.

Primary coils 17 of a linear motor are provided on both left and right outer sides of the entrance and exit of each car 2 so as to face the secondary conductor 16 in the hoistway 1 with a small gap therebetween. Primary coil 17 on both left and right sides of car 2
Linear motors are respectively formed by the motor and the secondary conductors 16 on both left and right wall surfaces in the hoistway 1, and each car 2 can individually obtain a thrust and move up and down by driving the left and right linear motors.

As shown in FIGS. 1 to 3, a plurality of the cars 2 are arranged in the hoistway 1 by a low press by using the linear motor drive system as described above. Make up the configuration. That is, each car 2
The primary coils 17 of the linear motor are provided respectively on the left and right outer sides of the front entrance of the box-shaped cab as described above. A car guidance steering mechanism 22 is provided, respectively.

The car guide steering mechanism 22 includes wheels 22a that can be steered, and performs guidance when the car 2 moves up and down the hoistway 1 by obtaining thrust by driving left and right linear motors. That is, the car guidance steering mechanism 22 is the car 2
To the hoistway sections 11a, 1 of the hoistway 2 of the hoistway 2
1b, 11 and each hoistway section 12a of the dedicated downhill path 12;
As shown in FIG. 2, the car 2 is moved up and down as shown by the arrow in FIG. In this configuration, the vehicle is guided so as to move diagonally between the hoistway sections 12a, 12b, and 12c of the road and the dedicated downhill road 12.

The upper and lower traversing paths 12, 13 of the hoistway 1 are used.
Although not shown in the figure, a traverse secondary conductor is provided as traversing guide means for the car 2, and a traverse primary coil is provided in the car 2 so as to face the secondary conductor. Car 2 with thrust by linear motor drive
Is to be rampant. That is, the car 2 that has risen on the ascending road 11 of the hoistway 1 is
, And the car 2 descending from the descending exclusive road 12 is traversed through the traversing path 13 and moves to the ascending exclusive road 11. The traversing guide means may use mechanical means other than the linear motor method.

By means of the linear motors 16 and 17 for raising and lowering, the car guidance steering mechanism 22 and the traversing guide means, a plurality of cars 2 follow the ascending exclusive road 11, the descending exclusive road 12, and the traversing paths 13 and 14 one after another. The hoistway part 1 which circulates up and down in a loop shape and is arranged in parallel in the depth direction
Of 1a, 11b, 11c and 12a, 12b, 12c, the foreground portions 11a, 12a near the entrance / exit are used as getting on / off routes, the rear portions 11b, 12b are used as passing / forwarding routes, and the rear portions are used. 11c, 12
c is secured as a surplus car standby route or the like, and operation control is performed such that a plurality of cars 2 arrive at the target floor as soon as possible without being restricted by the movements of the other cars 2 as much as possible while selecting these routes as appropriate. It is supposed to be.

A car doorway device 23 is provided at the front doorway of the car room 21 of each car 2.
The rear entrance device 24 is provided also on the rear surface opposite to this.

The car entrance / exit device 2 on the front of the car 2
Reference numeral 3 includes a pair of left and right doors 23a arranged to be openable and closable at the front entrance of the cab, and a motor-equipped door opening and closing drive mechanism 23b for opening and closing the doors. The engagement plate (3) is configured to protrude forward from the door 23a. The configuration is the same as that of a conventional general car door device having a razor (commonly called a razor) 23c.

When the car 2 stops landing on the destination floor, the driving mechanism 23b operates to open the left and right doors 23a. At this time, the engaging plate 23c is connected to the landing doorway device 15 by the driving mechanism 23b. A door engaging mechanism having a pair of engaging rollers 15b on the back surface of the left and right doors 15a of the left and right doors 15a (similar to a conventional general landing door device) enters between the rollers 15b of the door entrance mechanism 15 and the left and right sides of the landing entrance device 15 thereof. When the car 2 departs from the floor after the passengers get on and off, the doors 23a and 23b are opened in conjunction with each other so as to follow the door 15a.
This is a configuration for performing an operation of closing the door 15a together with a.

The rear doorway device 24 of the car 2 comprises:
As shown in FIG. 3, the door entrance / exit device 15 has the same configuration as the landing entrance / exit device 15, and a door engagement mechanism having a pair of engagement rollers 24b on the back (outer surface) of the left and right doors 24a. And a door closer 24c that keeps the door 24a closed during normal times, and the rear entrance / exit device 24 is provided for the other car 2 connected to the rear side of the car 2 when a large amount of passengers are transported. It can be opened and closed in conjunction with the car doorway device 23 on the front.

Each of the cars 2 is provided with a connecting device 25 at the front and rear lower portions of the car room. The connecting device 25 uses mechanical means such as a connecting device of a railway vehicle or an electromagnet. When a large amount of passengers are transported, the car 2 of the front hoistway portion 11a or 12a and the rear hoistway portion 11b are used. Alternatively, it is a configuration in which the car 2 that is arranged to be able to move up and down to 12b is connected in a state of being moved up and down together in parallel in the front and rear.

In the drawing, reference numeral 26 denotes a current collecting device (current collecting shoe) mounted on one side of the car room of the car 2, which slides on a power supply line (not shown) provided in the hoistway 1. In contact therewith, it controls the primary coil 17 of the car 2, the car guidance steering mechanism 22, the car entrance / exit device 23, etc., and collects power for power and power for lighting in the car.

Next, the operation of the self-propelled elevator configured as described above will be described. Normal operation is performed during a time period when there are relatively few elevator users. During this normal operation, each car 2 is separated and independent, and the current collector 26 independently receives power for control and power from the power supply line, and receives the primary coil 17 on both sides of the car room and the two coils on both sides inside the hoistway 1. A thrust is obtained by driving a linear motor to generate a suction / repulsion force with the next conductor 16, and each car 2 moves up and down and stops while being guided by the car guidance steering mechanism 22.

At the time of such normal operation, passengers get on and off by moving the car 2 alone to the front hoistway sections 11a and 12a near the landing entrance 15 of the hoistway 1 or the hoistway 12 of the hoistway 1. Then, the car 2 is stopped at the landing on the floor and the door is opened. Then, the car 2 is raised and lowered to the destination floor in response to the in-car call and the hall call assigned to the car.

When the car 2 travels alone, the foremost hoistway sections 11a and 12a and the corresponding traversing paths 13 and 14 are mainly used, but other cars are provided in the course between the destination floors. If there is a vehicle 2 or if it is determined that such a state will occur, the car guide steering mechanism 22 is operated to bypass them, and the car 2 is moved from the front hoistway sections 11a and 12a. Hoistway section 11 on the rear side
The route is shifted to the overtaking route of b, 12b, returned to the hoistway sections 11a, 12a near the target floor again, and stopped on the target floor. At the time of the detour, it is also possible to move the car 2 to the hoistway portions 11c and 12c on the rear side to operate.

The hoistway sections 11b, 12 on the rear side
b and the hoistway sections 11c and 12c on the rear side are used for orthogonal driving when an empty car 2 with no passengers is forwarded to a specific floor, or when a fault occurs in a certain route and the car cannot be passed. Lines, used as standby lines for excess cars when there are few passengers.

When it is necessary to secure a large transport capacity, such as in the morning at work or during lunch, the hoistway section 12a at the forefront of the hoistway 1, as shown in the dedicated downhill path 12 in FIG. For the rear surface of the car 2 to be arranged, the rear shaft section 1
The car 2 arranged in 2b is approached while being tilted by the thrust by the linear motor drive and the guidance of the car guidance steering mechanism 22, and joined at the same height in a state in which the car 2 is arranged back and forth.
Then, the two cars 2 and 2 are connected to each other by the connecting device 2.
Connect by 5.

Along with this approaching operation, the engaging plate 23c of the car doorway device 23 on the front side of the rear car 2 is moved to the rear side of the left and right doors 24a of the rear doorway device 24 of the front car 2 on the rear side. It enters between the rollers 24b. In this state, the car entrance / exit device 23 of the rear car 2 opens the door, and the doors 24a of the rear entrance / exit device 24 of the front car 2 are opened in conjunction with each other so as to follow.

Thus, the two cars 2 and 2 are lifted and lowered together by the linear motor drive in a connected state in which the two cars 2 and 2 are connected in parallel in front and rear. When the passenger stops landing on the passenger floor, The car entrance / exit device 23 on the front side of the front car 2 is operated in conjunction with the hall entrance / exit device 15 to open the door.

In this state, the passenger can get into the car 2 on the front side of the landing, and can also pack the car 2 on the rear side as it is, so that a large number of passengers can get on, and The car entrance / exit device 23 on the front of the car 2 of the vehicle operates the door closing operation in conjunction with the hall entrance / exit device 15 to move up and down to the target floor. As a result, twice as many passengers can be transported at one time as compared with the time when the car 2 operates alone, and a large transport capacity can be secured. At this time, the front and rear car 2,2
Are connected to each other by internal communication, but since they are individually driven by linear motors, a necessary and sufficient thrust can be obtained and the ascent and descent can be ensured.

[0036]

The self-propelled elevator according to the present invention is constructed as described above, and is a self-propelled elevator that raises and lowers a car by driving a linear motor. In particular, the car has a small capacity in terms of securing thrust. Even if it is limited to a limited time, the car can be linked back and forth as necessary, such as during work hours or lunch time when passengers are concentrated, and it is easy to achieve large transport capacity at once Is obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a self-propelled elevator according to the present invention.

FIG. 2 is a perspective view showing a schematic configuration of the embodiment.

FIG. 3 is a perspective view of one of the cars in the embodiment as seen from the rear side.

[Explanation of symbols]

1 ... hoistway, 2 ... car, 11 ... up-only road, 12 ...
Downhill exclusive route, 11a, 11b, 11c, 12a, 12
b, 12c ... hoistway part, 13, 14 ... traversing path, 15 ...
A landing doorway device, 23 a car doorway device, 24 a rear doorway device, 25 a connecting device.

Continuation of the front page (51) Int.Cl. ⁶ identification symbol FI B66B 13/14 B66B 13/14 A (58) Investigated field (Int.Cl. ⁶ , DB name) B66B 9/02 B66B 1/06 B66B 7 / 00 B66B 9/10 B66B 11/02 B66B 13/14

Claims (3)

(57) [Claims] 1. A self-propelled elevator in which a car moves up and down by a linear motor in an elevator hoistway,
The hoistway is configured to have a plurality of hoistway parts each of which a car can ascend and descend in parallel in a depth direction from a landing doorway, and a car arranged to be able to ascend and descend to at least the foremost hoistway part is a landing doorway device. In addition to having a car doorway device that opens and closes in conjunction with the car, a rear doorway device that maintains a closed state at normal time is also provided on the rear surface opposite to this, and when a large amount of passengers are transported, the front hoistway part The vehicle is provided with connecting means for connecting the car and the car arranged to be able to ascend and descend to the rear hoistway part in parallel so that the car can be lifted and lowered together in front and rear. A self-propelled elevator characterized by being provided with a car doorway device which opens in conjunction with a rear doorway device of a car at a road portion and makes the front and rear cars mutually communicated with each other; . 2. A car according to claim 1, further comprising: a plurality of hoistway sections which are arranged in parallel in the depth direction of the hoistway and individually move up and down; and a car guide steering mechanism moves between the front hoistway section and the rear hoistway section. The self-propelled elevator according to claim 1, wherein the self-propelled elevator is configured to be capable of being operated. 3. The hoistway includes an up-only path and a down-only path each having a plurality of front and rear hoistway parts in the depth direction, and the up-only path and the down-only path are formed at least at the upper and lower ends. 2. The self-propelled elevator according to claim 1, further comprising a traversing path for communication, wherein the car circulates and descends in a loop on the up-only path, the down-only path, and the traversing path.