JP7276728B1 - elevator - Google Patents

Abstract

An object of the present invention is to provide an elevator capable of carrying long luggage that cannot be placed in a normal car. An elevator according to the present invention includes a first hoistway, a first hoisting drive device capable of going up and down in the first hoistway, and a plurality of elevators each connectable to the first hoisting drive device. a car, wherein the plurality of cars includes a first car and a second car having a width dimension larger than that of the first car. . [Selection drawing] Fig. 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator capable of carrying long luggage such as a bed that cannot be placed in a normal car.

The inventor of the present application has proposed an elevator in which a car and a lifting drive device for raising and lowering the car are separated and coupled (Patent Document 1). In this elevator, one car can be coupled to each of the elevator drives arranged in each of two hoistways arranged in the width direction. Further, in this elevator, the car can be transferred to the elevator drive located in the adjacent hoistway through the transverse track provided on the elevator drive.

JP 2016-121021 A

In such an elevator, since a car of a normal size is connected to the lift drive device, it has been impossible to put a load longer than a normal load such as a bed on the car.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator capable of carrying long luggage that cannot be placed in a normal car.

The elevator of the present invention is
a first hoistway;
a first elevation drive device capable of ascending and descending within the first hoistway;
a plurality of cars each connectable to the first lift drive,
The plurality of cars includes a first car and a second car having a width dimension larger than that of the first car.

According to such a configuration, by coupling the second car, which has a large dimension in the width direction, to the first lifting/lowering drive device, it is possible to load a long baggage on the second car. Further, by coupling the first elevator car, which is smaller in the width direction than the second elevator car, to the first lifting drive device, when carrying a normal load (a load that is not large in width), it is possible to use the elevator car. By using (the first car), the energy required for raising and lowering the car can be reduced.

In the elevator
a second hoistway provided parallel to and adjacent to the first hoistway in the width direction;
a second lifting drive device capable of moving up and down in the second hoistway,
The second car may be connectable across the first lift drive and the second lift drive.

According to this configuration, the second car, which has a large dimension in the width direction, can be lifted and lowered while being stably supported by the two lift drive devices. In addition, two first cars can be used when carrying normal luggage.

In the elevator
a first motor that drives the first lift drive;
a second motor driven by the second lifting drive;
a shaft coupling machine that couples the shaft of the first motor and the shaft of the second motor,
When the second car is connected across the first lift drive device and the second lift drive device, the shaft coupler connects the shaft of the first motor and the shaft of the second motor. are coupled, the first motor drives and the second motor follows the first motor, so that the first lift drive device and the second lift drive device You can go up and down.

According to such a configuration, the first motor is driven and the second motor is driven by this drive, so that both the first and second elevation driving devices are raised and lowered, whereby the first and second elevation drives are performed. Since the lifting and lowering of the device is reliably synchronized, the second car is raised and lowered stably.

In the elevator
at least one landing at which the first car and the second car stop;
The at least one landing has a first landing doorway facing the first hoistway and a second landing doorway facing the second hoistway,
The second car may have a first car doorway corresponding to the first landing doorway and a second car doorway corresponding to the second landing doorway.

According to such a configuration, since the second car has two car doorways located in the first and second hoistways, respectively, the landing doorway used when boarding the first car and the second car doorway are used. It can also be used as a landing doorway used when getting into the car.

In the elevator
at least one landing at which the first car and the second car stop;
The at least one landing has a third landing doorway arranged across from a position facing the first hoistway to a position facing the second hoistway,
at least one landing at which the first car and the second car stop;
The second car may have a third car doorway extending from the first hoistway to the second hoistway.

According to such a configuration, the second car has the third car doorway arranged across the first and second hoistways, and the landing doorway is located across the first and second hoistways. This arrangement allows long items of luggage to be easily moved in and out of the second car.

In the elevator
at least one landing at which the first car and the second car stop;
The at least one landing includes a first landing doorway facing the first hoistway, a second landing doorway facing the second hoistway, and a position facing the first hoistway. a third landing doorway arranged across a position facing the second hoistway,
The second car has a third car doorway disposed across the first hoistway and the second hoistway,
a first operating state in which the first landing doorway and the second landing doorway are openable and closable and the third landing doorway is closed; the first landing doorway and the second landing doorway are closed; It may be possible to switch between a second operating state in which the third landing doorway can be opened and closed.

According to such a configuration, the second car has the third car doorway arranged across the first and second hoistways, and the third landing doorway is connected to the first and second hoistways. Therefore, when entering/exiting the first car, the first and second hall entrances are used as the first operation state, and when entering/exiting the second car, the second operation state is used. The landing doorway can be switched and used, such as using the third landing doorway.

As described above, according to the present invention, it is possible to provide an elevator that can accommodate long luggage that cannot be placed in a normal car.

FIG. 1 is a schematic perspective view showing a state in which a second car is coupled to a lift drive device in an elevator according to an embodiment of the present invention. FIG. 2 is a schematic perspective view showing a state in which the first car is coupled to the lift drive device in the elevator. FIG. 3 is a schematic perspective view showing a stand-alone up-and-down drive device in the elevator. FIG. 4 is a schematic plan view showing a single second car in the elevator. FIG. 5 is a schematic front view showing the overall structure of the elevator. FIG. 6 is a schematic plan view showing a second car and a landing in the elevator. FIG. 7 is a schematic plan view showing a second car and a landing in an elevator according to a modification. FIG. 8 is a schematic plan view showing a second car and a landing in an elevator according to a modification. FIG. 9 is a schematic perspective view showing a single second car in an elevator according to a modification.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. FIG.

The elevator 1, as shown in FIGS. and a plurality of cars 3 each connectable to a lift drive device 21 . In addition, the elevator 1 includes a second hoistway 12 provided adjacent to and parallel to the first hoistway 11 in the width direction (horizontal direction in FIG. and a second lift drive device 22 . Furthermore, the elevator 1 includes a control unit capable of controlling movement of each elevator drive device 2 and movement of each car 3 .

The car 3 can be separated and coupled to each lift drive device 2 . Further, as shown in FIGS. 1 and 2, the car 3 has a width direction (horizontal direction in FIGS. 1 and 2) that is larger than that of the first car 31 and the first car 31. Includes 2 cars. The width direction is a direction perpendicular to both the up-and-down direction and the front-rear direction (the direction of entering and exiting the car 3 shown in the figure). Thus, the elevator 1 of this embodiment includes two lifting drive devices 2 and two types of cars 3 .

As shown in FIG. 5, the elevator 1 is an elevator provided with a hoistway 10 (two hoistways 10 in this embodiment) extending vertically across a plurality of floors in a building. Further, the elevator 1 of the present embodiment is an elevator (elevating separation type elevator) in which a car 3 and an elevating drive device 2 for raising and lowering the car 3 are separated and coupled. In this elevator 1, the car 3 itself does not have a lifting function.

The elevator 1 comprises at least one landing 4 on which a first car 31 and a second car 32 stop. In the elevator 1 of the present embodiment, the hoistway 10 (specifically, the lowest part of the hoistway 10) is provided with a lateral track that can be coupled with the car 3, and a lateral movement path extending in the lateral direction is provided therein. It is connected. In this elevator 1, the car 3 separated from the lift drive device 2 can be retracted to the lateral movement path.

In the elevator 1 of the present embodiment, two hoistways 10 are provided side by side in the drawing, and extend three floors above ground in the vertical direction. A landing 4 is provided on each floor from the first floor to the third floor of the hoistway 10 . In this elevator 1, the elevation driving device 2 can ascend and descend in the hoistway 10 and stop at the landing 4 provided on each floor of the building. A machine room 5 is provided above the hoistway 10 .

In this elevator 1, both hoistways 10 are communicated between the hoistways 10 arranged in parallel on all floors so that the car 3 can move in the width direction. Further, the hoistway 10 and the lateral movement path communicate with each other so that the car 3 can move in the width direction between the first floor of the hoistway 10 and the lateral movement path. A gate that can be opened and closed is provided in these communicating portions, and the movement of the car 3 can be restricted by closing the gate.

A pair of guide rails G is provided inside each hoistway 10 (see FIGS. 1 and 2). A pair of guide rails G are provided for one lift drive device 2 so as to sandwich the lift drive device 2 in the width direction (horizontal direction in the drawing). One to three or more guide rails G may be provided for one lift drive device 2 .

The elevator 1 includes a first motor 71 that drives the first elevation drive device 21, a second motor 72 that drives the second elevation drive device 22, a shaft 710 of the first motor 71, and a second motor. and a shaft coupler 8 that couples the shaft 720 of the motor 72 (see FIG. 5). In the elevator 1 of this embodiment, the first motor 71 is arranged in the machine room 5 of the first hoistway 11, and the second motor 72 is arranged in the machine room 5 of the second hoistway 12. . The capacity of the first motor 71 is larger than the capacity of the second motor 72 . In this embodiment, each motor 71, 72 is controlled by an inverter. Also, the first motor 71 has a capacity capable of raising and lowering the second car 32 . The shaft coupler 8 mechanically couples the shafts 710 and 720, for example, but may be an electromagnetic clutch or a friction clutch.

Further, the elevator 1 includes a counterweight that ascends and descends in the hoistway 10 in conjunction with the elevation drive device 2, and a rope R that connects the elevation drive device 2 and the counterweight. With this configuration, the lifting drive device 2 is configured to be able to move up and down. Here, in the conventional traction elevator, the car itself connected to the rope R is raised and lowered. On the other hand, in the elevator 1 of this embodiment, the conventional car portion is replaced with the lift drive device 2 . In addition, the up-and-down drive device 2 may be self-propelled.

A control unit of the elevator 1 performs group management control such as allocating hall calls to each elevator driving device 2 and each car 3 . In this group management, when a hall call is received at the hall 4 of a predetermined floor (for example, when the call button is pressed at the hall 4), the control unit controls the transportation efficiency of users, etc., to be high. First, the elevator driving device 2 corresponding to the hall call is selected from a plurality of elevator driving devices 2, and the selected elevator driving device 2 is directed to the hall 4 containing the hall call.

For example, the control unit includes a CPU (Central Processing Unit), a ROM (Read Only Memory) or an EEPROM (Electrically Erasable Programmable Read Only Memory) for pre-storing various programs executed by the CPU and data necessary for the execution. etc., volatile memory elements such as RAM (Random Access Memory), which is the so-called working memory of the CPU, and peripheral circuits thereof, and a microcomputer.

As shown in FIG. 3, the up-and-down drive device 2 includes a horizontal track 20 extending in the width direction (horizontal direction in the drawing). It should be noted that the lift drive device 2 may be configured so that the car 3 can be lifted and lowered without falling from the lift drive device 2 in a state where the car 3 is coupled. For example, instead of the horizontal track 20, the lift drive device 2 may have a track extending in an oblique direction including a width direction component.

In this elevator 1 , the lift drive device 2 has a position sensor capable of detecting the position of the lift drive device 2 . Further, the lift drive device 2 of the present embodiment includes a first lift drive device 21 arranged in the first hoistway 11, a second lift drive device 22 arranged in the second hoistway 12, adjacent to each other, it has an adjacent sensor capable of detecting this. The lift drive device 2 also has a speed sensor capable of detecting the speed of the lift drive device. Furthermore, the lift drive device 2 also has a microcomputer for controlling the lift drive.

In this embodiment, the configuration of the first elevation driving device 21 and the configuration of the second elevation driving device 22 are the same. Therefore, the width dimension of the first lift drive device 21 is the same as the width dimension of the second lift drive device 22 . The configuration of the first elevation drive device 21 and the configuration of the second elevation drive device 22 may be different.

The car 3, as shown in FIGS. 1 and 2, is a car for loading users and luggage. In addition, the car 3 has, for example, a car main body 33 on which users and luggage are placed, and a rear surface of the car main body 33 that protrudes so as to extend in the width direction, and runs on the horizontal track 20 of the lifting drive device 2. A running portion 34 is provided for doing so. Note that the running portion 34 may be provided on the side surface of the car main body 33 .

The car 3 of the present embodiment is provided with power for the car 3 to run on the horizontal track 20, for example, in the running section 34, and is self-propelled. Further, the car 3 has a microcomputer for controlling traveling on the horizontal track 20, for example. The elevator car 3 may be configured without power for running the elevator car 3 on the horizontal track 20. 2 transverse tracks 20 may be drawn.

The car main body 33 is provided with a car door 35 for communicating inside and outside by opening and closing. The car door 35 of the present embodiment is a double opening in which a pair (two) of opening/closing units (one door or a unit composed of a plurality of doors moving in the same direction when opening and closing) are provided symmetrically. It is said that

In this elevator 1 , when the first car 31 is coupled to the first elevation drive device 21 , the first elevation drive device 21 is raised and lowered by being driven by the first motor 71 . Further, when the first car 31 is coupled to the second elevator drive device 22, the second motor 72 drives the first elevator drive device 21 to ascend and descend. The first car 31 can move to the horizontal track 20 of the second lifting drive device 22 by moving in the horizontal direction along the horizontal track 20 of the first lifting drive device 21 .

The width dimension of the car main body 332 of the second car 32 is larger than the width dimension of each lifting drive device 2 (see FIG. 1). In this embodiment, the second car 32 is connectable across the first lift drive 21 and the second lift drive 22 . Note that the second car 32 may not be connectable across the first lift drive device 21 and the second lift drive device 22, and may be connectable only to the first lift drive device 21, for example. There may be.

The car door 352 of the second car 32 is arranged in the center of the car body 332 in the width direction. Also, the car door 352 is arranged in front of the car body 332 . Further, the second car 32 has a car doorway 320 (third car doorway) that is arranged across the first hoistway 11 and the second hoistway 12 . The width dimension of the running portion 342 of the second car 32 is smaller than the width dimension of each lifting drive device 2 .

As shown in FIG. 5 , when the second car 32 is coupled across the first lift drive 21 and the second lift drive 22 , the shaft coupler 8 is coupled to the shaft 710 of the first motor 71 . and the shaft 720 of the second motor 72 are coupled, the first motor 71 (specifically, the first motor 71 and the inverter connected thereto) drives, and the second motor 72 is driven by the first motor 71, the first elevation driving device 21 and the second elevation driving device 22 are elevated. The second motor 72 is driven by the first motor 71 when the second motor 72 is in a free running state and the shaft 710 of the first motor 71 and the shaft 720 of the second motor 72 are connected. One is to move according to the drive of the first motor 71 .

The second elevator car 32 connected across the first lift drive device 21 and the second lift drive device 22 is positioned in the first lift drive device 21 when the second lift drive device 22 is aligned with the lateral movement path in the width direction. By moving in the width direction along the horizontal track 20 of the lifting drive device 21 and the second lifting drive device 22, it is possible to shift to the horizontal movement path.

As shown in FIG. 6 , the landing 4 has a landing doorway 40 (third landing doorway) that extends from a position facing the first hoistway 11 to a position facing the second hoistway 12 . . When the first car 31 coupled to the first elevator drive device 21 or the second elevator drive device 22 has arrived at the landing 4 and the landing doorway 40 is viewed from the landing 4 side, the landing doorway 40 is: It is arranged so as to overlap with the car doorway 310 of the first car 31 . Further, when the landing doorway 40 is viewed from the landing 4 in a state where the second car 32 coupled to the first lifting drive device 21 and the second lifting drive device 22 has arrived at the landing 4, the landing doorway 40 is , and the car entrance/exit 320 of the second car 32 . Further, the landing 4 has a landing door 45 of a size and opening method corresponding to the elevator car door 352 of the second elevator car 32 . In addition, in the elevator 1 of this embodiment, the landing 4 provided on each floor has the landing doorway 40 and the landing door 45 of the same configuration.

In the elevator 1 described above, by connecting the second car 32 having a large dimension in the width direction to the first lifting drive device 21, a long baggage can be put on the second car 32. - 特許庁Further, by connecting the first elevator car 31, which is smaller in the width direction than the second elevator car 32, to the first lifting drive device 21, when carrying a normal cargo (a cargo whose width is not large), , By using the car 3 (first car 31), the car 3 can be raised and lowered compared to the case where the second car 32 is coupled to the first lifting drive device 21. energy can be reduced.

In the elevator 1 of the present embodiment, the second car 32 having a large dimension in the width direction is stably lifted by the two elevator driving devices 21 and 22 in a state where the second elevator car 32 is connected across the two elevator driving devices 21 and 22 . Can move up and down while supported. In addition, two of the first cars 31 can be used when carrying normal luggage.

In addition, in the elevator 1 of the present embodiment, the first motor 71 is driven and the second motor 72 is driven by this drive, so that both the first and second elevation driving devices 21 and 32 are raised and lowered. , the first and second elevator drive devices 21 and 32 are reliably synchronized, the second car 32 can be raised and lowered stably.

Furthermore, in the elevator 1 of the present embodiment, the second car 32 has a car doorway 320 (third car doorway) arranged across the first and second hoistways 11 and 12, and Since the landing doorway 40 is arranged across the first and second hoistways 11 and 12 , long luggage can be easily moved in and out of the second car 32 .

In addition, the elevator of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention. For example, the configuration of one embodiment can be added to the configuration of another embodiment, and part of the configuration of one embodiment can be replaced with the configuration of another embodiment. Furthermore, some of the configurations of certain embodiments can be deleted.

In the above-described embodiment, the landing door 45 has an opening/closing method corresponding to that of the car door 352 of the second car 32 , but may have an opening/closing method different from that of the car door 352 . Further, the landing doorway 40 of the landing 4 may be configured so that the width is switched between when the first car 31 is used and when the second car 32 is used. For example, as shown in FIG. 7 , the landing 4 includes a landing doorway 41 (first landing doorway) facing the first hoistway 11 and a landing doorway 42 (second landing doorway) facing the second hoistway 12 . and a landing doorway 43 (third landing doorway) disposed across a position facing the first hoistway 11 and a position facing the second hoistway 12 . Switchable between a first operating state in which the landing doorways 41 and 42 are openable and the landing doorway 43 is closed, and a second operating state in which the landing doorways 41 and 42 are closed and the landing doorway 43 is openable and closable. is.

Specifically, when the landing door 45 is viewed from the landing 4 in a state in which the first elevator car 31 coupled to the first lift drive device 21 has arrived at the landing 4, the first elevator car 31 is positioned in the same position as the first elevator car 31. When viewed from the landing 4 in a state in which the first landing door 451 overlapping the door 351 and the first car 31 coupled to the second lifting drive device 22 have arrived at the landing 4, the first car 31 A second landing door 452 overlapping the first car door 351 and a third landing door 453 connecting the first landing door 451 and the second landing door 452 may be provided. The first and second landing doors 451 and 452 open both laterally outwards, and the third landing door 453 opens vertically (for example, upward). In the first operating state, the first and second landing doors 451 and 452 are opened and closed while the third landing door 453 remains fully closed. In the second operating state, the first, second and third hall doors 451, 452 and 453 are opened and closed in synchronization.

In such a configuration, the second car 32 has a car doorway 320 arranged across the first and second hoistways 11 and 12, and the landing doorway 43 is connected to the first and second hoistways 11. , 12, the landing doorways 41 and 42 are used as the first operating state when entering/exiting the first car 31, and the second operating state is used when entering/exiting the second car 32. The landing doorway 43 can be used by switching the landing doorway.

The car entrance/exit 320 of the second car 32 and the landing entrance/exit of the landing 4 may not be arranged across the first and second hoistways 11 and 12 . For example, as shown in FIG. 8 , the landing 4 includes a landing doorway 41 (first landing doorway) facing the first hoistway 11 and a landing doorway 42 (second landing doorway) facing the second hoistway 12 . platform doorway), and In addition, the second car 32 includes a car doorway 3201 (first car doorway) corresponding to the boarding place doorway 41 (first boarding place doorway) and a boarding car doorway 3201 (first car doorway) corresponding to the boarding place doorway 42 (second boarding place doorway). and a car doorway 3201 (second car doorway). When the second car 32 arrives at the landing 4 , the car doorway 3201 faces the landing doorway 41 and the car doorway 3202 faces the landing doorway 42 .

In such a configuration, since the second car 32 has two car doorways 3201 and 3202 arranged in the first and second hoistways 11 and 12, respectively, the second car 32 is used when boarding the first car 31. The landing doorway used for boarding the second car 32 can also be used as the landing doorway.

In the elevator 1 of the above-described embodiment, the landings 4 provided on each floor have the landing doorways 40 and the landing doors 45 of the same configuration, but some of the landings 4 have different configurations of the landing doorways 40 and the landing doors. 45. For example, when the stop floor of the second car 32 is only the second floor, the landing 4 on the second floor has a landing doorway 40 and a landing door 45 arranged across the first and second hoistways 11 and 12. (the landing doorway 40 and the landing door 45 having the configuration of FIG. 6), and the landing doorway 40 and the landing door 45 (see FIG. 6) that are not arranged across the first and second hoistways 11 and 12 8 of the landing doorway 40 and the landing door 45).

In the above embodiment, the car door 352 of the second car 32 is arranged in front of the car body 332, but the car door 352 is arranged on the front face of the car body 332 and at least one of the pair of side faces. It is sufficient if it is arranged. For example, as shown in FIG. 9 , the second car 32 has a car door 3521 located in front of the car body 332 , as well as car doors 3521 located on a pair of side surfaces of the car body 332 . It may also have a door 3522 . The car door 3522 is useful in that a long cargo such as a bed can be smoothly loaded onto the second car 32 .

In the second car 32, there may be provided a space in which a user rides, and a space (trunk) exclusively for luggage arranged in the width direction with this space. As a result, the elevator 1 is configured to have a car with a trunk without widening the depth of the hoistway 10 or narrowing the space in which users ride. It should be noted that the second car 32 may expand and contract in the width direction. In addition, when the elevator 1 includes a plurality of hoistways 10 of three or more, and each hoistway 10 is provided with the hoistway drive device 2, the second car 32 has a plurality of hoistways 10 of three or more. It may be coupled across the device 2 .

In the elevator 1 of the above-described embodiment, there are two up-and-down driving devices 2, but the number may be one or three or more. Furthermore, in the elevator 1 of the above-described embodiment, one elevator drive device 2 is arranged in each hoistway 10, but a plurality of elevator drive devices 2 may be arranged in at least one hoistway 10. For example, when two lift drive devices 2 are arranged in each of the two hoistways 11 and 12, the first car 31 is attached to the lift drive device 2 arranged in the upper story of the hoistways 11 and 12, respectively. , and the second car 32 may be coupled to the lift drive 2 arranged in the lower story of the hoistway 11, 12, respectively.

In the elevator 1 of the above-described embodiment, there are two hoistways 10, but the number may be one to three or more. Further, in the elevator 1 of the above-described embodiment, both hoistways 10 are in communication on all floors. , both hoistways 10 need only communicate with each other. For example, when the second car 32 needs to be raised and lowered between the first and second floors of the building, and the second car 32 does not need to be raised and lowered on the remaining floors, Both hoistways 10 need only be in communication.

Note that if one of the inverters that drives the first and second motors 71 and 72 has a capacity capable of lifting and lowering the second car 32, this one of the inverters will drive the first and second motors 71 and 72. The drive units 21 and 22 may be operated synchronously.

DESCRIPTION OF SYMBOLS 1... Elevator, 2... Lifting drive device, 3... Car, 4... Hall, 5... Machine room, 8... Shaft coupler, 10... Hoistway, 11... First hoistway (hoistway), 12... No. 2 hoistway (hoistway), 20... Horizontal track, 21... First elevating drive device (elevating drive device), 22... Second elevating drive device (elevating drive device), 31... First car, 32... Second car 33, 331, 332... Car main body 34, 341, 342... Running part 35... Car door 40, 41, 42, 43... Landing entrance/exit 45... Landing door 71 ... first motor (motor), 72 ... second motor (motor), 310, 320 ... car doorway, 351, 352 ... car door, 451 ... first landing door, 452 ... second landing door , 453... Third landing door 710, 720... Axes 3201, 3202... Car entrance/exit 3521, 3522... Car door G... Guide rail R... Rope

Claims (6)

a first hoistway;
a first elevation drive device capable of ascending and descending within the first hoistway;
a plurality of cars each connectable to the first lift drive,
An elevator, wherein the plurality of cars includes a first car and a second car having a width dimension larger than that of the first car. a second hoistway provided parallel to and adjacent to the first hoistway in the width direction;
a second lifting drive device capable of moving up and down in the second hoistway,
2. The elevator of claim 1, wherein the second car is connectable across the first lift drive and the second lift drive. a first motor that drives the first lift drive;
a second motor driven by the second lifting drive;
a shaft coupling machine that couples the shaft of the first motor and the shaft of the second motor,
When the second car is connected across the first lift drive device and the second lift drive device, the shaft coupler connects the shaft of the first motor and the shaft of the second motor. are coupled, the first motor drives and the second motor follows the first motor, so that the first lift drive device and the second lift drive device 3. Elevator according to claim 2, which ascends and descends. at least one landing at which the first car and the second car stop;
The at least one landing has a first landing doorway facing the first hoistway and a second landing doorway facing the second hoistway,
3. The second car according to claim 2, wherein said second car has a first car doorway corresponding to said first landing doorway, and a second car doorway corresponding to said second landing doorway. elevator. at least one landing at which the first car and the second car stop;
The at least one landing has a third landing doorway arranged across from a position facing the first hoistway to a position facing the second hoistway,
at least one landing at which the first car and the second car stop;
3. The elevator according to claim 2, wherein said second car has a third car doorway extending from said first hoistway into said second hoistway. at least one landing at which the first car and the second car stop;
The at least one landing includes a first landing doorway facing the first hoistway, a second landing doorway facing the second hoistway, and a position facing the first hoistway. a third landing doorway arranged across a position facing the second hoistway,
The second car has a third car doorway disposed across the first hoistway and the second hoistway,
a first operating state in which the first landing doorway and the second landing doorway are openable and closable and the third landing doorway is closed; the first landing doorway and the second landing doorway are closed; 3. The elevator according to claim 2, capable of switching between a second operating state in which the third landing doorway can be opened and closed.

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