JP2512091B2 - Automatic storage device and method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic storage device and method capable of automatically storing a vehicle such as a parking device or an automatic warehouse, a cargo, etc. (hereinafter simply referred to as a vehicle). .

2. Description of the Related Art In a parking device, for example, an endless chain is hung between sprockets arranged in the upper and lower parts of a tower, and cages hung on the chains at equal intervals are circulated by rotational driving of the sprockets. By the vertical circulation method to store it in the air indoors, multiple parking spaces are provided in front of or behind the automobile elevator,
By an elevator system in which a car that has been carried to a desired level by an automobile elevator is self-propelled or stored by being transferred to a parking space by a horizontal transfer device, in which the elevator for a car is vertically moved in both vertical directions. There are various types such as those that move and have multi-level parking spaces installed in parallel on both sides of the traveling path of the elevator, such as those of the elevator slide type. By arranging a number of unit plates that can run and providing an elevator for cars that can move up and down and move horizontally in the parking space, the elevators for cars pass through the elevator spaces that are formed vertically by moving the unit plates at each stage. Grab a pallet with a car and carry it to the desired floor,
There is also a type that receives from the lower side with a unit plate and stores it (Japanese Patent Application No. 62-29145).

SUMMARY OF THE INVENTION The latter type of Japanese Patent Application No. 62-29145 is to store an automobile in multiple rows or rows at each stage by horizontally moving an automobile elevator left and right or front and rear. In addition to the advantages of being able to store (cars can be stored in multiple rows and multiple rows at each stage by moving the car elevator to the left and right and back and forth) The power required for loading and unloading can be reduced because all that is needed is to move the unit plates, and since the individual unit plates have a small mass, the influence of inertia can be reduced, and there are advantages such as easy control. However, in order to be able to store a large number of cars on each stage, it is necessary to move the car elevator to at least one of left and right or front and rear. Ri, also if the vehicle is determined to be out than a predetermined portion of the first stage, out privileges must follow a path that descends to the horizontal movement after that carried once to the top of the car in a car for an elevator.

Conventional devices, including the latter one of the type shown in Japanese Patent Application No. 62-29145, may be equipped with a plurality of vehicle elevators or a plurality of vehicles if they can be carried side by side. As a general rule, not only can you put in and take out only one unit, but you can also put in and out if the receipt is not completed, and you cannot enter and exit at the same time unless the exit is finished, It is not possible to enter or leave the next warehouse.

In a conventional device in which a storage space is provided on both sides of an elevating space in which an automobile elevator moves up and down, and a vehicle is fed into the storage space by a transportation device, it is also provided in the automobile elevator and each stage storage space. The transport devices are driven independently of each other, and each transport device has a driving device such as a motor, so that the structure of the device is complicated.

INDUSTRIAL APPLICABILITY The present invention, in an automatic storage device having storage spaces on both sides of an elevating space, enables a plurality of automobiles or the like to be put out or put in at one time, or can be put out and put in at the same time, and does not face the raising and lowering space. The objective is to speed up loading and unloading by allowing elevators to be taken in and out even in a car on the back side without having to lift it up to the top.

Another object of the present invention is to enable moving in and out of an automobile or the like at the same time, and to enable the next moving in and out while the moving in and out is not completed, thereby speeding up moving in and out. To do.

Yet another object of the present invention is to combine the above-mentioned inventions to further speed up the loading and unloading.

Means for Solving the Problems The invention for achieving the first object is to elevate and lower a space for an elevator, an elevator that moves up and down in the elevating space to carry a vehicle and the like, and is arranged in a multi-tiered manner up and down on both sides of the elevator space. The elevator has a storage space for storing automobiles and the like, and the elevator is made up of a plurality of upper and lower stages so that the automobiles can be stored in each stage. In an automatic storage device provided with a transportation device for horizontally moving an automobile or the like between the floors, floors having different heights are provided according to the number of stages of elevators, and passages reaching each floor are provided.
It is characterized in that cars can be moved in and out of each floor from the elevator.

The storage space may be elongated so as to be in series with the elevating space, or the elevating space may be elongated in the front-rear or left-right directions and provided in parallel along the elevating space,
In addition, the storage space may be formed wide in the front-rear direction and the left-right direction. In the case of the latter two, the elevator is allowed to move horizontally in the front-rear direction or the left-right direction, or a plurality of units are provided so as to be able to move up and down independently or are configured to have the same length as the raising / lowering space. It is made possible to carry the units at the same time.

A typical example of the transport device is a conveyor.

A plurality of transfer devices provided in the storage space may be arranged in series so that automobiles and the like can be transferred to each other, or a single device and a plurality of automobiles and the like can be horizontally moved. . The elevator transport device may be of the same type as the storage space transport device, or may be different.

In another device that can speed up loading and unloading of automobiles, etc.,
Adjacent to an elevator space is an elevator that carries an automobile or the like up and down in an elevator space and an automatic storage device that has a storage space that is vertically arranged on both sides of the elevator space and that can store an automobile or the like on each stage. It is possible to lift up and down by lifting the car, etc. above the floor and lift it up to at least the height of the car etc. The elevator, the lifter, and the trolley are each provided with a transporting device for horizontally moving the automobile or the like, which has a position and a trolley that can be switched to a position that retracts from this position and does not hinder the lifter from being raised.

Here, the storage space may be formed in series or in parallel with the elevating space, or may be formed wide in the front-rear direction and the left-right direction, as described above. If the elevators can be moved in the front-rear direction or the left-right direction when they are arranged side by side along the elevating space or formed wide in the front-rear direction and the left-right direction,
Each of the plurality of units is provided so as to be able to move independently or has the same length as the elevating space.

The floor in the above-mentioned device may be flush with the ground, or may be higher or lower than the ground.

The trolley may be movable in a direction orthogonal to the storage space, but is preferably movable in a direction along the storage space under the storage space. In the case of the former, it is necessary to allow the carrier provided in the elevator to move back and forth as well as in the direction of left and right, which complicates the structure of the carrier, whereas in the latter case, the carrier of the elevator requires front and rear or left and right. This is because the structure can be simplified because it can be moved only in one direction.

Any lifter may be used as long as it has a function of lifting an automobile or the like, and examples thereof include a lifting type and a bending / extending mechanism in which a pantograph mechanism and a hydraulic cylinder are combined.

The switching device may be, for example, a hydraulic cylinder that is connected to a bogie to move the bogie forward and backward, a bogie self-propelled device including a motor, and the like.

As the carrier, the same carrier as that used in the first invention is used, and an instrument suitable for carrying an automobile or the like, such as a pallet, is optionally used.

In another aspect of the above-described device, a transport device for horizontally moving an automobile or the like is provided on the opposite side of the lifter that has been lifted across the lifting space. In this case, the carriage of the device described above can be omitted.

In a method that can speed up loading and unloading of automobiles, etc., the above-mentioned device in which the automobiles are placed on a pallet and horizontally moved is used, and the transportation is provided at the same level as the trolley with an elevating space in between. An empty pallet is placed in the device so that it will be moved horizontally when a car, etc. is moved into the pallet, and will be replaced with a pallet that carries a car, etc. lifted by a lifter, and when leaving a car, it will be replaced with a pallet that carries a lowered car, etc. To be done.

Another method for further increasing the speed of loading and unloading of automobiles and the like is that in the above method, the elevators used are composed of a plurality of upper and lower stages, and the automobiles and the like can be stored in each stage.

Operation FIGS. 4A to 4E show an example in which the elevator 1 is vertically arranged in two stages so that automobiles and the like can be housed in the two stages. After adjusting the level of the carrier device 2A to the carrier device 3 in the storage space (No. 4B), the cars 4 and 5 in the storage spaces A and B are both carried by the carrier device 3, and the car 5 is first placed in the upper stage of the elevator 1. (Fig. 4C). Next, the elevator 1 rises by a certain amount, and the carrier device 2B in the lower stage becomes equal to the level of the carrier device 3 (4D
(Fig.), Car 4 etc. are stored in the lower stage of elevator 1 (Fig. 4E). Then, the elevator 1 descends by a certain amount, the upper conveying device 2A coincides with the level of the conveying device 3, and the upper vehicle 5 or the like is fed into the conveying device 3. After that, the elevator 1 containing the automobiles 4 descends.

The movement of the elevator 1 may be reversed so that the vehicle 5 or the like in the storage space B can be stored in the lower row and the vehicle 4 or the like in the storage space A can be stored in the upper row.

When a car or the like is stored in the storage space A, the car or the like in the storage space is temporarily stored in the elevator according to the above-described procedure.

When leaving a car or the like stored above and below the elevator 1, as shown in FIG. 5, the car or the like stored in the upper stage of the elevator 1 is lower than the upper floor and the car or the like stored in the lower stage is lower than the lower floor, respectively. Be issued.
Even when entering the warehouse, it is put in the upper and lower stages of the elevator 1 through each floor through each passage.

6A to 6H show a horizontal transfer device 10 that can be lifted by the lifter from the first stage adjacent to the elevator space, and moves horizontally to a position on the lifter lift path and retracts from it. Fig. 6 shows a procedure for exiting a mechanism having a carriage 11 with a transfer device that can be switched to the predetermined position. After the carriage 11 has moved to the retracted position (Fig. 6B), the car 13 to be discharged is stored. elevator
The vehicle 12 or the like 12 is lowered onto the transport device 14, and an automobile 15 or the like to be stored is placed on the transport device 10 and lifted up to the level of the carriage 11 or the transport position 14 by the lifter 9 (Fig. 6C). Next, the vehicles 13 and 15 to be put in and out are horizontally moved to the left by each of the transfer devices and transferred to the adjacent transfer device (6D).
Figure). Then, a car or the like that is placed on the carrier device 10 and leaves the warehouse.
After 13 is lowered by the lifter (Fig. 6E), the truck 11 moves to the right on the lifter ascending / descending path (Fig. 6F), and the car etc. 15 on the truck is sent to the transfer device 14 (Fig. 6G). . After that, the car 12 is carried by the elevator 12 (Fig. 6H) and stored in the intended storage space.

When the transport device is provided on the opposite side of the lifter with the elevating space in between, the car or the like entering or leaving is horizontally moved to the right, and the car or the like leaving the store is temporarily retracted to the right. Then, a car or the like to be stored is carried upward by an elevator, and then the car or the like that has been evacuated is moved onto the lifter to be discharged.

FIGS. 7A to 7G show another procedure of the warehousing method using the above device and using a pallet.As shown in FIG. 7A, they are provided in series with a trolley with a lifting space interposed therebetween. An empty pallet 18 placed on the carrier 17 is transferred to the carrier by passing over the carrier (Fig. 7B),
The dolly 11 on which the pallet 18 is placed moves to the left retracted position (Fig. 7C). Next, the elevator 12 lowers the empty pallet 19 onto the transfer device 14, and the lifter 9 raises the car 13 or the like placed on the pallet 20 to the level of the transfer device 14 (FIG. 7D). Then, it moves horizontally with the other pallets 18 and 19 to transfer to the next carrier (Fig. 7E). After that, 13 cars and 12 elevators
Is carried to the upper layer and the empty pallet 18 is lowered (Fig. 7F), and the truck 11 is moved to its original position (Fig. 7G).
Figure). Then, the empty pallet is lowered to the first stage in exchange for the car, etc. to be stored, and the car, etc. to be stored next is placed.

FIGS. 8A to 8G show the procedure of the shipping method, in which the carriage 11 first moves backward to the left in the same manner (FIG. 8B), and the car 15 or the like leaving the elevator 12 is placed on the pallet 19 and is transported by the conveyor device. The lifter 9 lifts the empty pallet 20 while it is lowered onto the top 14 (FIG. 8C). Next, the pallet 19 on which the automobile etc. 15 is placed moves horizontally to the left along with the other pallets 18 and 20 and is sent to the adjacent transport position (Fig. 8D). After that, the automobile 15 is unloaded by the lifter, and the elevator carries the empty pallet 18 to the upper layer (Fig. 8E) and places it in the intended storage space or collects it at a predetermined place. After that, the dolly 11 moves to the right (FIG. 8F) in the same manner as above, and the pallet 20 is transferred to the transfer device 17 (FIG. 8G).

Although the procedure at the time of warehousing and the time of warehousing was shown above, it is also possible to carry out warehousing and warehousing simultaneously by the same procedure.

As described above, empty pallets are supplied to the first floor as they are loaded and unloaded, and compared with the conventional method where empty pallets are fed to the first stage for loading and unloading after completing loading and unloading. The speed of pallet supply is increased, and warehousing is carried out quickly.

When the elevator is provided with a transfer device having a drive source including a motor and a transmission mechanism is provided, the transfer device is engaged with the transfer device in the storage space so that both transfer devices in the storage space of the elevator transfer device are motorized. Is driven as a driving source.

Embodiment FIG. 1 shows a parking apparatus having a parking space capable of storing two cars on each of the left and right sides of the elevator space where the elevator is raised and lowered.
Lifting space 32 for lifting and lowering and parking spaces 33 on both sides
Are provided in the second and higher tiers, and the first tier serves as a space space 35 so that cars can enter and leave. As shown in the drawing, the parking space 33 is divided into a plurality of upper and lower parts, and a pair of chain conveyors 36 (sixth step and above are not shown) and a pair of parallel conveyors are placed on each step except the second step on the back side. A pallet (not shown) is arranged, and a carriage 37 carrying a conveyor having a drive source composed of a motor moves horizontally in the second stage on the back side, and moves horizontally on the lifter hoistway described later adjacent to the hoisting space 32. It is arranged so that it can move back and forth between the position and the retracted position in the back.

The lifter 38 is a lifting system equipped with a conveyor, and a turntable 39 that can be slightly lifted and rotated by the lifter 38 that has descended is provided on the floor below the lifter 38.
When ascends, the conveyor with the drive device carried by the lifter is lifted to the same level as the chain conveyor 36, the conveyor on the carriage and the chain conveyor 40 with the drive device arranged at the lower end of the elevating space, and is connected in series. Cars placed on pallets on each of the conveyors are connected and can move horizontally from side to side.

The elevator 31 is fixed by stoppers (not shown) that can be engaged and disengaged as soon as the elevator is stopped at the target level, and chain conveyors 42 are provided above and below so that cars can be stored in each. is there. And
Sprockets at the left and right ends of each chain conveyor 42
43 (one or both of which is rotatably driven by a motor (not shown) via a speed reducer) has a clutch mechanism, that is, an arm 44 having one end pivotally attached to the sprocket 43, and the arm 44. A gear 45 which is attached to the other end of the gear and which rotates in conjunction with the sprocket 43 by gear transmission,
By rotating the arm 44 to either one, the gear 45 meshes with a gear (not shown) coaxial with the sprocket 46 of the chain conveyor 36 arranged in the parking space 33 adjacent to the elevating space 32, and the sprocket 46 is rotationally driven. A clutch mechanism is provided so that it can be switched between a position where it is operated and a position where it is disengaged. 47 in the figure is a chain conveyor
It is a pallet that is carried by 36 and 42 and on which an automobile is placed, and is driven by a chain conveyor so that it can be transferred to the next chain conveyor. Further, reference numeral 48 shown in FIG. 1 is an automatic door that divides the space space 35 on the floor into front and rear, and the front side of the space space 35 is set in the front yard so that a vehicle waiting for parking can stand by.

Elevator 31 lift and chain conveyor 42 described above
Drive the sprocket 43 of the, switching of the arm 44 synchronized with this,
Forward and backward movement of the carriage 37 and driving of the conveyor carried by the carriage,
The lifting / lowering of the lifter 38, the rotation / lifting of the turntable 39, and the opening / closing of the automatic door 48 are automatically controlled, and a control box (not shown) corresponding to the parking space has a button corresponding to the parking space and the presence or absence of a car on the parking space. A large number of lamps for displaying are arranged in pairs.

The present apparatus is configured as described above, and then the usage method thereof will be described.

For example, when a car stored in the parking space 4A shown in FIG. 1 is to be unloaded and a new car is to be loaded, first, the button corresponding to the parking space 4A is pressed. That is, as shown in FIG.
Opens, the car enters, the pallet is placed on the turntable 39, the automatic door 48 closes, and the turntable turns.
39 is slightly lifted on the floor and rotated 90 ° to change the direction of the car, and bogie 37 retreats to the left of Fig. 1. After that, the lifter 38 lifts the car that can be placed on the pallet on the turntable to the first level. In other words, the lifter conveyor is the conveyor on the truck and the chain conveyor.
Match 36 levels.

On the other hand, with respect to the delivery vehicle, the elevator 31 descends to the fourth stage from above, the upper chain conveyor 42 is aligned with the level of the chain conveyor 36 installed in the parking space, and then locked by the stopper. Then the clutch is engaged. That is, the arm 44 rotates to engage the gear 45 with the gear of the chain conveyor 36. Immediately after that, the chain conveyors 36 and 42 are driven, and the car placed on the pallet in the parking space 4B is drawn into the upper stage of the elevator 31.
Once in the elevator 31, the arm 44 turns in the opposite direction
45 is disengaged from the gear of the chain conveyor 36, the clutch is disengaged, and at the same time, the lock by the stopper is released.
Next, the elevator 31 raises the lower chain conveyor 42 to the level of the chain conveyor 36, is locked, and the clutch is reengaged to drive the chain conveyors 36 and 42. The vehicle located on the parking space 4B due to the above-described movement and stored in the pre-moving parking space 4A is pulled into the lower stage of the elevator. After that, the lock and the clutch are released in the same manner, and the elevator 31 moves the upper chain conveyor 42 to the chain conveyor 36.
To the level of. Then, at the same time as the lock, the clutch is engaged, the car is stored in the upper stage of the elevator, and the car on the pallet located in the parking space 4B is sent to the chain conveyor 36 and returned to the original position. After that, the lock and the clutch are released again, the lifter 38 descends, and the lower chain conveyor 42 is installed in the parking space 2A.
36, lower the conveyor on the trolley and the chain conveyor 40 at the lower end of the hoisting space to a level below that of the delivery car.
Put it on 40.

The chain conveyors 40 and 42 do not interfere with each other because they have two rows with different widths.

When the level of each conveyor is matched, the conveyor and the chain conveyor 40 carried by the lifter and the carriage are driven, the warehousing lifted by the lifter 38 is on the dolly, and the delivery vehicle carried by the elevator 31 is on the lifter. Be transferred. Then, the lifter 38 on which the delivery vehicle is placed descends to the floor, the direction of the vehicle placed on the turntable 39 is turned forward by rotating the turntable (to the right in FIG. 1), and the turntable 39 is lowered to land on the floor. . Then automatic door 48
Is opened and the car is closed after leaving. On the other hand, as the lifter 38 descends, the carriage 37 moves to the right in FIG. 1 and returns to the original position, and the warehousing vehicle on the dolly is transferred to the lower stage of the elevator 31 that has issued the unloading vehicle by driving the conveyor. After that, the elevator 31 puts in the garage and goes up to the 4th stage, and the clutch is engaged at the same time as the lock. Then, the incoming vehicle is sent to the parking space 4B. The car stored in the parking space 4B is moved to the parking space 4A by this.

 The warehousing is carried out as described above.

When only carrying in the goods, at the same time as the automatic door 48 is opened, the conveyor on the carriage, the chain conveyor 40 and the chain conveyor 36 installed in the second parking space are driven to transfer the pallet in the parking space 2B to the conveyor. Is transferred to the trolley by the lifter, the conveyor on the lifter, the conveyor on the trolley, the chain conveyor 40 and the drive of the second stage chain conveyor 36, and the loading car lifted by the lifter 38 is moved to the lower stage of the elevator 31 by the elevator 31. The empty pallets that have been dropped are transferred to the chain conveyors 36, respectively, and after the carriage moves to the right and returns, the conveyors are not driven, and the automatic doors 48 for shipping are not opened or closed. Except for the above, the procedure is the same as for loading and unloading.

When only carrying out the goods, the automatic door 48 for the goods receipt is not opened and closed, and the conveyor on the lifter, the conveyor on the truck,
By driving the chain conveyer 40 and the second stage chain conveyer 36, the car lowered by the elevator 31 is moved onto the lifter, the empty pallet lifted by the lifter 38 is moved onto the trolley, and the empty pallet on the trolley is changed. The procedure is the same as that for loading and unloading except that it is transferred to the chain conveyor 36 by driving the conveyor.

The above embodiment shows a parking apparatus and a method, but in another embodiment, it is used as an automatic warehouse, and the method is also stored in the warehouse in the same procedure.

EFFECTS OF THE INVENTION The present invention is configured as described above and has the following effects.

According to the automatic storage device of claim 1, since the elevator is composed of a plurality of upper and lower stages so that a vehicle or the like can be housed in each stage, a vehicle or the like on the back side of the storage space can be stored by raising or lowering the elevator by a small amount. It is possible to put in and take out the car, and by installing floors with different heights according to the number of steps of the elevator, it is possible to move in and out multiple cars at the same time without moving the elevator. Up and reduction of power can be achieved.

According to the automatic storage device of claim 2, it is possible to carry out the loading and unloading at the same time by allowing the unloading vehicle or the like to be temporarily evacuated to the trolley, and to carry out the following loading or unloading in a state where the loading or unloading is not completed. You can issue or enter.

According to the automatic storage device of claim 3, it is possible to carry out the loading and unloading at the same time by temporarily moving the outgoing vehicle to the transfer device on the opposite side of the lifter, and the state where the loading or unloading is not completed. The next goods issue or goods receipt can be performed with.

According to the method of claim 4, an empty pallet is arranged in the transfer device provided in series with the truck with the lifting space interposed therebetween, and the pallet of the automobile or the like to be put in and taken out is replaced by a new pallet. In particular, the time required to supply pallets for new storage is shortened.

In the case of the method of claim 5, it is possible to carry out the loading and unloading of a plurality of automobiles and the like, and to speed up the loading and unloading.

[Brief description of drawings]

FIG. 1 is a schematic view of a parking device according to the present invention, FIG. 2 is a front view of a main part of a transfer device having a clutch mechanism, FIG. 3 is a time chart, and FIGS. 4A to 4E are automobiles above and below an elevator. FIG. 5 is a diagram showing an operation sequence when the device is configured to be able to store and receive goods in and out, FIG. 5 is a schematic diagram showing another method of carrying in and out,
6A to 6H are diagrams showing the operation sequence of loading and unloading by a device equipped with a lifter and a dolly, 7A to 7G are diagrams showing the procedure for loading and unloading using a pallet, and Figs. 8A to 8G are the diagrams at the time of loading and unloading. It is a figure which shows a procedure. 1, 12, 31 ... Elevator, 2A, 2B, 3, 10, 14, 17 ...
... Conveyor device 4, 5, 13, 15 ... automobile, etc. 6 ... recess, 7, 8 ... floor, 11 ... bogie, 18, 19, 20, 47 ...
… Pallet, 32… Lifting space, 33… Parking space, 36, 40, 42… Chain conveyor, 37… Bogie, 38
...... Lifter, 39 …… Turntable, 43,46 …… Sprocket, 44 …… arm, 45 …… Gear

Claims (5)

(57) [Claims] 1. A lift space for an elevator, an elevator for moving a car or the like up and down in the lift space, and a storage space for arranging a car or the like on each side of the lift space in a multi-tiered manner. The elevator has a plurality of upper and lower stages so that automobiles and the like can be housed in the respective stages, and a transport device for horizontally moving the automobiles and the like between each stage of the elevator and each stage of the storage space. In the automatic storage device provided with, an automatic storage device is provided in which floors having different heights are provided according to the number of stages of elevators, a passage reaching each floor is provided, and a car or the like goes in and out of each floor from the elevator. 2. A lift space for an elevator, an elevator for moving a car or the like up and down in the lift space, and a storage space for arranging a car or the like on each side of the lift space in a multi-tiered manner up and down. In the automatic storage device having, it is possible to lift and lower adjacent to the lifting space,
A lifter that can lift an automobile or the like above the floor at least as high as the height of the automobile or the like, and a vehicle or the like can be mounted to move horizontally, and a position on the lifting path of the lifter and retract from it An automatic storage device that has a carriage that can be switched to a position that does not hinder the lifting of the lifter, and that the elevator, the lifter, and the carriage are each provided with a transport device that horizontally moves the automobile or the like. 3. The automatic storage device according to claim 2, wherein a transport device for horizontally moving an automobile or the like is provided on the opposite side of the lifter that is lifted across the lifting space. 4. The automatic storage device according to claim 2, wherein an automobile or the like is placed on a pallet and is transported by an elevator, a lifter or a trolley, and an empty space is provided in a transport device provided at the same level as the trolley with a lifting space interposed therebetween. A pallet is arranged, and the empty pallet is moved horizontally when a car or the like is loaded and is replaced with a pallet that carries a car lifted by a lifter, and when it is unloaded, it is replaced with a pallet that carries a car, etc. of a lowered elevator. The way you did. 5. The method according to claim 4, wherein the elevator comprises a plurality of upper and lower stages, and automobiles and the like can be housed in each stage.