JPH08144564A - Operating method of mechanical parking facility and its mechanical parking facility - Google Patents

Abstract

PURPOSE: To shorten necessary warehousing-delivery time by respectively and independently arranging an entering passage and a leaving passage of a vehicle in respective warehousing-delivery ports, and mainly using the two warehousing- delivery ports for one when expected that one is more than the other by comparing a warehousing number and a delivery number with each other. CONSTITUTION: When an ordinary mode is selected, a warehousing-delivery port 13A is set as a warehousing port, and a warehousing-delivery port 13B is set as a delivery port. Next, when a-warehousing preferential mode is selected, the warehousingdelivery ports 13A and 13B are set as warehousing ports. When a delivery preferential mode is selected, the warehousing-delivery ports 13A and 13B are set as delivery ports. An automatic setting mode has both functions of ordinary and delivery preferential modes, and when a command number from a delivery command unit is larger than a prescribed number, a delivery preferential mode is set, and when it is small, an ordinary mode is set. Therefore, since two warehousing-delivery ports are used by dividing them into a preferential mode and an ordinary mode, warehousing-delivery time can be shortened even by few warehousing-delivery ports.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical parking lot, and more particularly to a multistory parking lot using a stacker crane.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application Laid-Open No. S51-141178, a multi-story parking garage of the stacker crane type comprises a stacker crane and a group of shelves provided with a number of storage shelves on both sides of a traveling path of the stacker crane. An entrance is provided at one end of a group of shelves (a traveling path of a stacker crane), and an exit is provided at the other end. The stacker crane includes a traveling body, an elevating body that elevates and lowers the traveling body, and a fork that advances and retracts from the elevating body to the storage shelf side. There is one set of forks, and warehousing and warehousing are performed for each vehicle.

[0003] The vehicle is stored on a pallet. For this reason, a depalletizer is provided near the entrance, and the stacked pallets are divided and supplied one by one to the entrance. In addition, a palletizer is provided in the vicinity of the exit, and pallets that are no longer needed due to the exit of the vehicle are collected and stacked.

It is known that, in a general three-dimensional warehouse, two sets of forks are provided in a stacker crane so that two stacks can be loaded and unloaded to facilitate cargo handling. For example, there is JP-A-57-107303.

[0005] In addition, Japanese Utility Model Laid-Open No. 56-154903 discloses a warehouse in which a group of shelves and a stacker crane are installed on the second floor and above of a building, and a cargo handling field is provided at the bottom of the shelves. The place and the first floor are connected by a load lifting and conveying means. The means for lifting and lowering loads is below the shelf. The first floor is a doorway.

[0006]

In a multi-story parking lot, it is desirable that the time from when the user desires to enter the car to when the car can be actually parked, and between the time when the user wants to leave the car and when the car can actually leave the car be as short as possible.

[0007] There are various types of entering and exiting patterns. However, in a multi-storey parking lot for general use such as a store, it was found that the following three patterns can be roughly divided.

(1) A pattern in which warehousing is continuous as when the store is opened (2) A pattern in which warehousing is continuous as when the store is closed (3) A pattern in which warehousing and warehousing are mixed such as in an intermediate time zone Is to load and unload many vehicles in the shortest possible time according to these patterns.

[0009]

[Means for Solving the Problems] The above object is to provide two loading / unloading ports capable of loading and unloading in a storage unit such as a shelving group so that a vehicle entry path and a vehicle exit path are independent of each other. When the number of incomings and outgoings is compared and one is expected to be larger than the other, the two incomings and outgoings are mainly used for the one In the case of, by using one loading / unloading port as the loading port and the other loading / unloading port as the loading port,
Can be achieved.

[0010]

According to this, since the two loading / unloading ports are switched and used according to the demand, the demand can be processed in a short time.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In this embodiment, a stacker crane is used and a vehicle is placed on a pallet and stored.

In FIG. 1, reference numeral 1 is a stacker crane as a known conveying means, which comprises a traveling body, an elevating body for elevating the traveling body, and two sets of forks 2, 2 provided on the elevating body. The forks 2 and 2 can each project on both sides.

On both sides of the traveling path 3 of the stacker crane 1, there are provided shelving groups 4,5, 4A, 5A composed of a large number of storage shelves. Here, the stacker crane 1 and the shelving groups 4 and 5 or the shelving groups 4A and 5A on both sides thereof are set as one set, and two sets are arranged in parallel. Since these two sets of loading and unloading systems are the same, the shelf groups 4 and 5 will be described. Further, since the shelf group 4 and the shelf group 5 have the same loading / unloading system, the shelf group 4 will be mainly described.

The number of storage shelves in each rack group 4, 5, 4A, 5A is eight along the traveling direction of the stacker crane 1.
The number of shelves is four.

In FIGS. 2 and 3, reference numeral 9 is a floor for supporting the traveling path 3 of the stacker crane 1 and the shelving groups 4, 5, 4A, 5A, and an entrance path 35 and an exit path 36 of the vehicle 34 for parking. 3 of the exit passage 37 for passengers of FIG. L. It is installed above. The stacker crane 1 travels on the upper surface of the floor 9. Floor 9
Is supported by a pillar (not shown) installed at a position that does not obstruct the running of the vehicle 34.

That is, the first floor portion serves as an entrance / exit area, and the second floor portion and above serves as a vehicle storage area.
When the vehicle is loaded into the loading / unloading openings 13A, 13B on the first floor and the occupant gets off, the lifters 12A, 1 as well-known transporting means are provided.
Use 2B to raise to the second floor and store. When the vehicle is to be unloaded, the lifters 12A and 12B are used to exit and exit the loading / unloading ports 13A and 13B from the second floor. The lifter 12
Although not shown, B is used to indicate that it is a lifter for the loading / unloading port 13B.

Conveyors 10A and 10B are provided on the upper surfaces of the lifters 12A and 12B, respectively. The lifter raises the conveyors 10A and 10B to the first shelf.

The lifters 12A and 12B are the fourth of the shelving groups 4 and 5.
It is provided on the line. At the bottom of the first shelf of the fifth row and the sixth row of the shelving groups 4 and 5, conveyors 11A for loading and unloading are installed.
11D is provided.

The conveyors 10A, 10B, 11A-1
1D is provided so that the fork of the stacker crane 1 can be inserted therein. The shelves in this section are stacker cranes 1.
It is a transfer port between and.

21A and 21B are pallet magazines having a palletizer function and a depalletizer function,
They are installed on the third row of shelves of shelving groups 4 and 5, respectively. As is well known, the pallet magazines 21A and 21B include a stacking pallet storage unit 22, a support device 23 that supports the stacking pallets, and a lifter 25 that moves the conveyor 24 up and down.

The essential points of the operation of the pallet magazines 21A and 21B will be briefly described with respect to the pallet magazine 21A on the shelf group 4 side.

A case will be described in which empty pallets 39 are used as a palletizer for stacking. When the vehicle exits from the loading / unloading port 13A, the lifter 12A is raised and the pallet on the upper surface thereof is supplied to the conveyor 24 of the pallet magazine 21A using the conveyor 10A. Next, the lifter 25 is raised to push up the pallet on the support device 23, then the support device 23 is retracted, the lifter 25 is further raised, then the support device 23 is projected, and then the lifter 25 is raised. To lower it. By the above operation, the pallet 39
Can be stacked from below.

A case where the empty pallet 39 is used as a depalletizer for unloading one by one will be described. Lifter 2
5 is lifted to raise the stacked pallets, then the support device 23 is retracted, then the lifter 25 is lowered, and then the support device 23 is protruded to support the second-stage pallet. If the pallet 25 is lowered, one pallet can be taken out. This pallet is lifted by lifter 12
Supply to A conveyor 10A.

In FIG. 3, reference numeral 30 is an entrance of the vehicle to the parking lot, and 31 is an exit. 32 is an occupant exit, and 33 is an entrance.

The loading / unloading ports 13A and 13B are lifters 12A,
12B is surrounded by shelves or walls 44 and 45 for safety. Between the right side of the lifter and the right side wall 44 in the traveling direction of the vehicle, there is a platform 43 for passengers to get on and off. Reference numeral 40 denotes an entrance door of a vehicle to enter, and also serves as an exit for a passenger who gets off the vehicle. Reference numeral 41 denotes an exit door of a vehicle that leaves the parking lot, and also serves as an entrance of an occupant.

The platform 43 is on the right side
This is because the driver's seat of the vehicle is on the right side. When the vehicle mainly has a driver's seat on the left side, the exit 31 side is set as the entrance and the entrance 30 side is set as the exit.

An occupant entrance may be provided on the wall 44 of the entrance / exit 13A, 13B. The platform 43 of the entrance / exit 13A is below the traveling path 3. The platform 43 of the entrance / exit 13B is located below the side-by-side shelf group 4A.

Reference numeral 50 is a display for instructing whether or not to enter the vehicle, and is installed above the entry path 35 of each of the loading / unloading ports 13A and 13B. If it is possible to enter from the relevant entry / exit port, it will be displayed in blue. If it cannot be entered, it will be displayed in red and "full".

Further, a detector 52 for detecting the presence or absence of a vehicle desiring to enter is provided in the approach path 35 of each entry / exit port. The detector 52 is of a photoelectric type or a sonic type.

Referring to FIG. 4, the overall structure of the control device for the multistory parking lot will be described. The control device 60 controls each loading / unloading port 10
A, 10B storage commander 62, a unloader commander 63 provided at the entrance 33 for pedestrians, a commander 64 for instructing an operation mode, a detector 52 of a vehicle desired to be stored, and a storage entrance and a stacker crane. A control device 65 for controlling the stacker crane 1 based on signals from the etc., the loading / unloading port 13A,
13B, lifters 12A, 12B, conveyors 11A-11
D, the control device 66 for controlling the pallet magazines 21A, 21B, etc., and a control signal are output to the warehousing guide display 50 to carry out warehousing.

The mode command device 64 is located in the control room 69 and commands the operation mode by a manager. As shown in Table 1, the operation modes of the control device are a normal mode, a storage priority mode,
There are four shipping priority modes and an automatic setting mode.

[0032]

[Table 1]

The normal mode is used in a time zone in which it is expected that the number of vehicles desiring to enter and the number of vehicles desiring to leave are substantially equal. When the normal mode is selected, the entry / exit port 13A becomes the entry port and the entry / exit port 13B becomes the exit port. The entry guidance indicator 50 upstream of the entry / exit port 13A displays "Possible to enter" (blue light), and the entry guidance indicator 50 upstream of the entry / exit port 13B is "Impossible entry" (red, full) Is displayed). It is certain to provide an entrance prohibition bill, a shelf, or the like on the approach path 35 of the loading / unloading port 13B.

In the normal mode, the lifter 12A and the pallet magazine 21 connected to the loading / unloading port 13A serving as the loading / unloading port.
Each device such as A (hereinafter, referred to as a storage / entry opening system) operates in a storage-priority state such that the storage / entrance opening 13A is used as the storage / inlet opening. Therefore, when the warehousing is not continuous, the lifter 12A puts a pallet and stands by at the height of the loading / unloading port 13A. Therefore, warehousing can be performed in a short time.

Similarly, each device such as the lifter 13B and the pallet magazine 21B connected to the loading / unloading port 13B serving as the loading / unloading port (hereinafter referred to as the loading / unloading port system) outputs the loading / unloading port 13B. It is operating in the priority state. Therefore, when the warehousing is not continuous, the lifter 13B is on standby at the height of the conveyor 11C. The pallets are collected in the pallet maga resin 21A. Therefore, the warehousing can be performed in a short time.

The warehousing priority mode is used in a time zone (for example, when a store is opened in the morning) in which it is expected that the number of vehicles desiring to enter is larger than the number of vehicles desiring to leave. When the warehousing priority mode is selected, the warehousing ports 13A and 13B become warehousing ports, and the respective warehousing guidance indicators 50 and 50 display "reception possible". Since the vehicle has two storage openings, the time required for storage can be shortened.

The entry / exit port 13B is the only exit port in the time zone of the entry priority mode. In this mode, if there is a request for delivery, the entry operation is interrupted from the entry / exit port 13B and the item is issued. The loading / unloading port 13A continues to work as a loading / unloading port. This also gives priority to warehousing.

In the warehousing priority mode, the system of the warehousing / unloading ports 13A and 13B serving as the warehousing ports operates in the warehousing priority state, as described in the section of the normal mode. That is, when there is no warehousing or warehousing, the lifters 12A and 12B place pallets and stand by at the height of the warehousing / unloading ports 13A and 13B.
Therefore, warehousing is preferentially performed. Entry / Exit 13A,
13B operates independently.

The delivery priority mode is used in a time zone (for example, when the store is closed in the evening) in which it is expected that the number of vehicles desiring to be delivered is greater than the number of vehicles desiring to be delivered. When the shipping priority mode is selected, the loading / unloading ports 13A and 13B are the shipping ports. Since the vehicle has two exit ports, the time required to exit the vehicle can be shortened.

The entry / exit port 13A is the only entry / exit port during the time period of the exit / priority mode. In this mode, when there is a request for warehousing, the warehousing operation from the warehousing / unloading port 13A is interrupted and warehousing is performed. The loading / unloading port 13B continues to work as a loading / unloading port. This also gives priority to shipping.

In the delivery priority mode, the entry / exit port 13A
The entry guidance display 50 upstream of the "Incoming" is displayed,
The entry guidance indicator 50 upstream of the entry / exit port 13B displays "Impossible entry".

In the shipping priority mode, the system of the loading / unloading ports 13A and 13B, which are shipping ports, are operating in the shipping priority state, as described in the section of the normal mode. That is, when there is no warehousing or unloading, the lifters 12A and 12B stand by at the height of the conveyors 11A and 11C without loading the pallet. Therefore, the shipping is preferentially performed. Each of the loading / unloading ports 13A and 13B operates independently.

The automatic setting mode has the functions of both the normal mode and the shipping priority mode. When the number of shipping commands from the shipping command device 63 is greater than a predetermined number, the shipping priority mode is set, and the shipping reservation is small. In this case, the normal mode is set.

The mode command unit 64 commands which mode is selected for each time zone. It is convenient to be able to set the time zone. The normal mode and the automatic setting mode are selected when the warehousing priority mode and the warehousing priority mode are inappropriate. In the actual mode setting, 4
It is not necessary to use all one of the two modes, only the one that seems appropriate.

In such a configuration, regarding the warehousing operation,
The shelf group 4 will be described. The operation mode does not matter.

The vehicle entering from the entrance 30 travels from the approach road 35 in accordance with the instruction of the entry guide indicator 50, temporarily stops in front of the entry / exit opening 13A, and dismounts the passenger.

While the lifter 12A carrying the empty pallet 39 supplied from the pallet magazine 21A descends,
Since the entrance door 40 is opened by the detection of the vehicle by the detector 52, the vehicle is made to enter the loading / unloading port 13A. After exiting the vehicle, the driver exits through the entrance / exit opening 13A through the entrance door 40, and then operates the warehousing instruction device 62 to instruct the warehousing operation.
You will also receive a parking card. Drivers and passengers
The passage 37 leads to the outlet 32.

When the storage operation is instructed, the entrance door 40 is closed and the lifter 12A is raised. The on-vehicle pallet 39 of the lifter 12A is moved from the conveyor 10A to the conveyors 11A, 11A.
Supply to B.

The lifter 12A is a pallet magazine 21A.
After receiving an empty pallet from, descend.

When the vehicle-mounted pallets are placed on the conveyors 11A and 11B, the stacker crane 1 stops so that the forks 2 are positioned on the fifth and sixth rows of the shelf group 4.
Then, the forks 2 and 2 are projected to the conveyors 11A and 11B at the same time, and the vehicle-mounted pallet is simultaneously taken into the stacker crane 1 side. Next, the stacker crane 1 stores the in-vehicle pallet in the empty shelf.

As described above, the stacker crane 1 simultaneously conveys two vehicle-mounted pallets when the warehousing is continuous, and in other cases, the pallets are conveyed one by one.

Next, the delivery operation will be described for the shelf group 4. The operation mode does not matter. The driver requesting to leave
A parking card is inserted into the leaving command device 63 installed at the entrance 33 to issue a leaving command. Since the position (number) of the entrance / exit port where the vehicle exits is instructed from the exit command device 63, the vehicle goes through the passage 38 to the predetermined entrance / exit port according to the instruction.
The number of the parking card is displayed on the display of each entrance / exit in the order of exit.

The stacker crane 1 takes out the vehicle-mounted pallet from the two shelves to which the delivery command is issued, and stops so that the forks 2 are positioned on the fifth and sixth rows of the shelving group 4.
Then, the forks 2 and 2 are projected at the same time, and the conveyor 11
Place on A and 11B. The in-vehicle pallet of the conveyor 11A is raised and is on standby. The conveyor 1 on the upper surface of the lifter 12A.
Move to 0A.

Next, when the lifter 12A is lowered, the exit door 41 is opened, and the driver gets on and leaves the vehicle. Then, the vehicle temporarily stops, the passengers who have passed through the passage 38 are boarded, and the passenger passes through the passage 36 to reach the exit 31.

When the vehicle exits, the exit door 41 is closed, the lifter 12A is raised, and the empty pallets 35 are stacked on the pallet magazine 21A. Further, the in-vehicle pallet that has been unloaded to the conveyor 11B is also unloaded.

As described above, the stacker crane 1 simultaneously conveys two vehicle-mounted pallets when the unloading is continuous. In other cases, the stacker crane 1 conveys the pallets one by one.

Next, the case where the storage priority mode in Table 1 is selected will be described. When the warehousing priority mode is selected, the respective equipments of the warehousing / unloading ports 13A and 13B operate as the warehousing port as described above.

In the receiving priority mode, the issuing commander 63
When the issuing command is issued, the issuing command device 63 displays that the exit is the entry / exit opening 13B. Control device 60
Keeps the loading / unloading operation from the loading / unloading port 13A, but temporarily suspends loading / unloading of the loading / unloading port 13B and issues the commanded vehicle to the loading / unloading port 13B.

When a delivery request is issued, the flowchart of FIG. 5 is executed. In FIG. 5, when there is a delivery request and the vehicle has not arrived at the temporary stop position upstream of the entry / exit port 13B (when there is no command from the detector 52, that is, when there is no entry request), the delivery operation is performed. Is started (steps S11 and S15). However, the actual warehousing work is performed after the vehicle to be laid in the lifter 12B and the conveyors 11C and 11D is stored on the shelf.

On the other hand, when there is a delivery request together with a delivery request by the detector 52 (step S11), the time when the delivery request is made and the time when the delivery request is made are compared with respect to the vehicle which will start the delivery work. (Step S1
3) If the time when the leaving request is made earlier, the leaving operation is performed (step S15).

The number of vehicles leaving the warehouse is one or two. When the number of requests is plural, the step S13 judges by the request time of the vehicle requested first.

The actual warehousing work is carried out after the lifter 12B, the conveyors 11C and 11D, and the stacker crane 1 are stored in the shelves. On the other hand, if the delivery request is later than the delivery request, one or two vehicles in front of the entry / exit port 13B are loaded, and then the delivery operation is performed (step S1).
7).

The "vehicle to start the warehousing operation" means that the vehicles on the conveyors 10B, 11C, 11D and the stacker crane 1 are excluded, and the vehicle is still stopped before the loading / unloading port 13B. Vehicle

The time when there is a storage request is the storage entrance / exit 13
It is the time when the detector 52 upstream of B detects the vehicle and is stored. The time when there is a delivery request is the delivery command device 63
It is the time when the delivery request is made in and is stored.

In the above-described embodiment, step S13 is executed at the time when the delivery request is issued. However, when the lifter 12B finishes the loading operation, that is, the lifter 12B on which an on-vehicle pallet is placed reaches the height of the conveyor 11C. You may make it perform step S13 at the time of rising.

The delivery operation in step S15 is performed by the conveyor 10
Although there is no vehicle to be stored in B, 11C, and 11D, if there is only one vehicle to be stored, if the vehicle to be stored is moved from conveyor 10B to conveyor 11C, it can be stored in conveyor 10B. it can. If there are two vehicles to be delivered, if there are no vehicles to be delivered from the conveyors 10B and 11C, they can be delivered here.

When the vehicles are stored in all the shelves, the entry guidance display unit 50 displays "Incoming is impossible".

Next, the case where the delivery priority mode in Table 1 is selected will be described. When the shipping priority mode is selected, the respective devices of the loading / unloading ports 13A and 13B operate as the shipping port as described above.

In the shipping priority mode, the loading / unloading port 13B
Is always operated as an exit. On the other hand, the entrance / exit 13A
When a request for warehousing is detected by the detector 52 upstream of the
The system of the loading / unloading port 13A executes FIG. If there is a request for warehousing but no request for warehousing, the warehousing work is started (steps S21 and S25). If there is a request for leaving and there is a request for entering (step S21), the time when the issue is requested and the time when the issue is requested are compared for the vehicle that will start the issue operation (step S2).
3) If the storage request is earlier, the storage operation is performed (step S25).

Lifter 1 by warehousing operation in step S25
When the detector 52 detects the next vehicle during the ascent of 2A, the work for storing the next vehicle is continued. Two detectors 52 may be installed so that two vehicles can be continuously stored.

When one or two vehicles are stored in the conveyors 11A and 11B, the stacker crane 1 stores them in the rack at an appropriate time.

The actual warehousing operation in step S25 is after unloading the stacker crane 1, the conveyors 11B, 11A, and 10A having the vehicle to be loaded into the warehousing / unloading port 13A from the warehousing / unloading port 13A.

On the other hand, if the request for warehousing is later, the warehousing work is carried out after the one or two vehicles for which the warehousing request has been issued (step S27).

The above-mentioned "vehicle from which the shipping work is to be started"
The term "excludes vehicles mounted on the stacker crane 1 for the loading / unloading port 13A" and vehicles mounted on the conveyors 11B, 11A, 10A, and refers to vehicles still stored on the shelves.

The time when there is a storage request is the storage entrance / exit 13
It is the time when the detector 52 on the upstream side of A detects the vehicle and is stored.

In the above-described embodiment, step S23 is executed at the time when there is a storage request, but step S23 is executed at the time when stacker crane 1 discharges a set of vehicles to conveyors 11A and 11B. Good.

Since the entrance and exit are fixed in the normal mode, the description is omitted. Two entrances / exits 13
When one of A and 13B is out of order, the other entrance / exit port is used for warehousing and warehousing.

In the above embodiment, steps S13 and S23.
Judges only by comparing the requested times. However, since this mode is one of the priority modes, the determination may be made under other conditions. For example, in the warehousing priority mode, when there is a request for unloading of a plurality of vehicles (for example, two vehicles) as shown in FIG. 7, unloading is executed. However, if there is no request for leaving the second unit within a predetermined time after requesting the leaving of the first unit, only one unit will leave. On the other hand, in the shipping priority mode, as shown in FIG.
When there is a request for warehousing of a vehicle, the warehousing is executed. However, if there is no request for warehousing of the second device within a predetermined time after the request for warehousing of the first device, only one device is used for warehousing.

In the priority mode of warehousing and warehousing,
5 or 6 may be set as a mode having a higher priority than that of FIGS. 7 and 8, and the mode command device 64 may select the mode according to the time zone. However, the user's sense of fairness is more satisfied in FIGS. 5 and 6 than in FIGS. 7 and 8.

As described above, the normal mode in which one entrance / exit port is the entrance and the other entry / exit port is the exit port, and the entry priority mode in which the two entry / exit ports are on standby in the enterable state, It is divided into a shipping priority mode in which one loading / unloading port is placed in a waiting state in a ready state, so even if there are two loading / unloading ports, loading / unloading can be done in a relatively short time in accordance with the loading / unloading request. Is.

Further, in the normal mode in which both entry and exit are performed, one of the two entry and exit ports is dedicated to the entry and exit port and the other is dedicated to the exit and exit port. Therefore, the lifter at the storage entrance can stand by in the state where the next storage operation can be performed in the shortest time. For example, the lifter at the storage entrance conveys an on-vehicle pallet to the conveyors 11A and 11C at the raised position, receives an empty pallet from the pallet magazine, and lowers and stands by. On the other hand, the lifter at the exit port can wait at the position where the next exit operation can be performed in the shortest time. For example, an empty pallet is placed and lifted to supply the empty pallet to the pallet magazine, and at the same height as the conveyors 11A and 11C, the pallet is stopped and waiting. Therefore, it is possible to shorten the time required for entering and leaving the warehouse.

The above effect will be described in comparison with the following case.
In the normal mode, when both of the two entrances and exits are configured to carry in and out (hereinafter referred to as a comparative example),
It is often unclear what the next work is, after the lifter of one loading / unloading port has carried out the loading / unloading work. For example, when the next work is predicted to be a shipping work and there is a storage request in a waiting state, it is necessary to take out the pallet from the pallet magazine and lower the lifter. The time required for warehousing is lengthened by the time taken to remove and lower the pallet. On the other hand, if the next work is predicted to be a warehousing work and there is a request for warehousing while waiting, the time required for warehousing becomes longer by the time required to raise the lifter.

In the entry priority mode, the exit port is limited to one entry / exit port 13B. Therefore, when there is a request for leaving two vehicles at approximately the same time, if stacking is possible in the system of one loading / unloading port 13B, the stacker crane 1 immediately puts two vehicles in the loading / unloading port 13B.
Can be issued to the system. When attempting to leave one at each of the loading and unloading ports 13A and 13B, the stacker crane 1 cannot issue the products unless the systems at both the loading and unloading ports are ready to issue. Therefore, when the exit port is limited to the one entry / exit port 13B, the exit time can generally be shortened.

In the shipping priority mode, the entrance for entering the goods is limited to one entrance / exit opening 13A. For this reason, when there is a request for warehousing of two vehicles in succession, if the system of one of the loading / unloading ports 13A becomes warehousing, the two vehicles will be warehousing continuously and the stacker crane 1 One vehicle can be stored on a shelf. Both entrances and exits 13
When A and 13B are set as the storage entrances, the stocks cannot be stored unless the systems of the respective storage entrances and exits can be stored. Therefore, it is generally possible to shorten the storage time by limiting the storage entrance to one storage entrance.

Next, the automatic setting mode of Table 1 will be described. This mode has a function of a normal mode and a function of a shipping priority mode, and which mode is to be selected can be determined by the number of shipping requests from the shipping command device 63. In FIG. 9, if the current delivery request number No is not less than the predetermined number K ₁ , the delivery priority mode is set. (Steps S30, S40) On the other hand, if the current number N _{0 of} requested delivery is less than the predetermined number K ₂ , the normal mode is set. (Steps S30 and S50) This check is performed at predetermined time intervals to decide which one. The “current delivery request number No” is the number of delivery requests (remaining number) for each set (shelf groups 4 and 5 configure one set, and shelf groups 4A and 5A configure one set). The predetermined number K ₁ is, for example, “4” (depending on the number of shelves and the like).

The shipping priority mode in step S40 is, for example, as shown in FIG. An example of the delivery priority mode in step S40 will be described with reference to FIG. If the number of delivery requests No is not less than the predetermined number K ₂ (K ₂ ≧ K ₁ ), the delivery is continuously performed. (Steps S43, S45), if No <K ₂ ,
The delivery priority mode shown in FIGS. 6 and 8 is executed. (Steps S43, S47) Note that step S40 may be performed in FIG. 6 or FIG. 8 without using FIG.

When FIG. 10 is used, continuous warehousing is possible, and warehousing is prioritized. However, it impedes the fairness of those who wish to enter and leave.

Step S50 is the same as the above-mentioned normal mode. When automatically switching between the warehousing priority mode and the normal mode, the warehousing request number in FIGS. 9 and 10 may be set as the warehousing request number.

Next, an example in which the three modes of the normal mode, the warehousing priority mode, and the warehousing priority mode are automatically switched will be described with reference to FIGS. 11 and 12.

FIG. 11 shows the relationship between the multilevel parking lot and public roads. Reference numeral 80 denotes the multi-story parking lot shown in FIGS. 1 to 4, in which the stacker crane 1 travels in the lateral direction. A vehicle exiting from the entrance / exit 13 of the multistory parking lot 80 goes straight toward the left end in the figure, passes through an exit 81 in front of the multistory parking lot 80, crosses a sidewalk 83, and crosses the public road 8.
Up to 5. The vehicle to be parked passes through the approach road 87 parallel to the multi-storey car park 80 and makes a U-turn at the right end of the multi-storey car park to reach the entrance / exit 13. A detector 90 for detecting the number of passing vehicles is installed at the entrance of the approach path 87. As this detector, a known one such as an optical type can be used.

Mode switching will be described with reference to FIG. This mode switching is performed for each group. This is executed every predetermined time.

The number No of requesting delivery is less than the predetermined number Ko,
When Ni is less than the predetermined number Ki, the operation is performed in the normal mode. (Steps S61, S63, S73) The number of delivery requests No is the number of delivery requests for each group. The required number of warehousing Ni is determined based on the number of vehicles waiting in the waiting area from the entrance of the approach path 87 to immediately before the warehousing / exit opening 13. That is, the required number of storages Ni is the number that can be stored in each group among the waiting vehicles. For example, if the number of vehicles that can be stored in two groups is larger than the number of vehicles that are waiting, the value obtained by dividing the number of vehicles that are waiting by 2 is the storage request number Ni of each group. However, the number of vehicles that can be stored in one group may be small, and the number of vehicles that can be stored in the other group may be large. Good to ask. If the number of vehicles waiting is greater than the number of vehicles that can be stored, the number of vehicles waiting can be stored.

The number of vehicles waiting is determined by the difference between the cumulative value of the number of vehicles passing through detected by the detector 90 at the entrance of the approach path 87 and the cumulative value of the parked vehicles.

If the requested number of goods leaving No is greater than the predetermined number Ko or the requested number Ni of receipt is larger than the predetermined number Ki, the process proceeds to step S67. If No / Ni is less than the predetermined value K ₃ , the operation is performed in the storage priority mode. (Step S
71) If No / Ni is K ₃ or more and K ₄ (K ₄ > K ₃ ) or less, operate in normal mode. (Step S73) No
If / Ni is larger than K _4, it is operated in the shipping priority mode. (Step S75) The storage priority mode is as shown in FIGS. 5 and 7, for example. The shipping priority mode is as shown in FIGS. 6 and 8, for example. If the user's fairness is not taken into consideration, only the shipping may be continued in the shipping priority mode, or only the shipping may be continued in the shipping priority mode.

For example, Ko is 10, Ni is 10, K ₃ is 0.6, and K ₄ is 1.5. These are determined by the number of shelves in each group, consideration of fairness, and experience.

According to this, since the mode is automatically switched according to the required quantity of the number of warehousing, it is possible to operate in the optimum mode.

The number of waiting vehicles can be almost recognized by the position of the last vehicle on the approach roads 35 and 87.

Which of the normal mode, the warehousing priority mode and the warehousing priority mode is to be automatically switched is determined depending on the purpose of the multi-storey parking lot.

In the above embodiment, a pair of loading / unloading ports 13A,
13B are provided in the same row, but may be provided in different rows (for example, adjacent rows) as long as they are close to each other.

In addition, in the use of a multi-storey parking lot, the priority mode is only one of entry and exit.

Further, it can also be used when the loading / unloading area is provided above the storage area. In this case, the transfer port of the stacker crane is at the top of the shelves.

If there is only one set of shelves, a loading / unloading port may be installed on the side of the shelves. Further, it can be used for a mechanical parking lot other than the mechanical multi-storey parking lot using a stacker crane, for example, a plane circulation type mechanical parking lot.

[0103]

As described above, according to the present invention, since the two loading / unloading ports are used separately for the priority mode and the normal mode, the loading / unloading time can be shortened even with a small loading / unloading port.

[Brief description of drawings]

FIG. 1 is a plan view of a mechanical parking lot according to an embodiment of the present invention.

2 is a sectional view taken along line 2-2 of FIG.

3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a configuration diagram of a control device according to an embodiment of the present invention.

FIG. 5 is a flowchart of an embodiment when a leaving request is made in the receiving priority mode.

FIG. 6 is a flow chart of an embodiment in the case where a warehousing request is made in the warehousing priority mode.

FIG. 7 is a flowchart of another embodiment when there is a leaving request in the receiving priority mode.

FIG. 8 is a flow chart of another embodiment when there is a storage request in the shipping priority mode.

FIG. 9 is a flowchart of an example of a case where the normal mode and the shipping priority mode are automatically switched.

FIG. 10 is a flowchart of a delivery priority mode of FIG.

FIG. 11 is a plan view showing an arrangement of a multilevel parking lot on a public road.

FIG. 12 is a flow chart of an embodiment for automatically switching between the normal mode, the warehousing priority mode, and the warehousing priority mode.

[Explanation of symbols]

1 ... Stacker crane, 4, 4A, 5, 5A ... Shelf group, 1
0A, 10B, 11A to 11D ... Conveyor, 12A, 1
2B ... lifter, 13A, 13B ... loading / unloading port, 21A, 2
1B ... Pallet magazine, 35 ... Entry path, 36 ... Exit path, 50 ... Entry guidance display, 52 ... Vehicle detector, 62
... Warehousing command device, 63 ... Exit command device, 64 ... Mode command device, 80 ... Multilevel parking lot, 81 ... Exit road, 83 ... Public road, 87 ... Entry road, 90 ... Detector.

Claims (19)

[Claims] 1. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two entrances provided for the vehicle to enter the two entrances and exits, and a passage for each vehicle exiting the two entrances and exits. And the two exit routes that are provided separately from the approach route, and when the desired number of warehousing and the desired number of warehousing are compared and one is expected to be greater than the other, A method of operating a mechanical parking lot, characterized in that the outlet is mainly used for one of the above, and one of the inlets and outlets is used as the inlet and the other outlet is used as the outlet during the other time zones. 2. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two entrances provided for the vehicle to enter the two entrances and exits, and a passage for each vehicle exiting the two entrances and exits. And the two exits provided separately from the entrance, and the two indicators installed on the two entrances and displaying that fact when the goods can be stored. In the first time period when it is expected that there will be more than the desired number, the two entrances and exits will be used as entrances, and the two indicators will be displayed in a ready-to-go state, and the desired entrance will be the desired exit. During the second time, which is expected to be less than , Using the two entrances and exits as exits, and displaying the indicator upstream of one entrance and exit in a ready-to-go state, and during the other third time zone, one entrance and exit And the other entrance / exit opening is used as the exit, and the display device upstream of the entrance / exit opening used as the entrance is displayed in a ready-to-go state. 3. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting the vehicles between the storage unit and the two loading / unloading ports. And two entrances provided for the vehicle to enter the two entrances and exits, and a passage for each vehicle exiting the two entrances and exits. The number of desired exits and the desired number of exits are compared, and when one of them is larger than the other, the two entrances and exits are mainly Used for one side, when the desired number of receipts and the desired number of departures are substantially the same, one of the entry / exit ports is used as the entry port, and the other entry / exit port is used as the exit port. How to drive a parking lot. 4. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two entrances provided for the vehicle to enter the two entrances and exits, and a passage for each vehicle exiting the two entrances and exits. And the two exits provided separately from the entrance, and the two indicators installed on the two entrances and displaying that fact when the goods can be stored. In the first case in which the number is larger than the desired number, the two storage ports are used as storage ports, and
In the second case in which the two display devices are displayed in a state where they can be stored and the desired number of storage is less than the desired number of storage, while using the two storage ports as the storage port,
In the third case in which the desired number of receipts and the desired number of departures are almost the same, one of the entry / exit ports is used as the entry port and the other entry A method for operating a mechanical parking lot, characterized in that the exit is used as an exit, and the indicator upstream of the entrance used as the entrance is displayed in a ready state. 5. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two entrances provided for the vehicle to enter the two entrances and exits, and a passage for each vehicle exiting the two entrances and exits. The two entrances and exits provided separately from the entrance, and one of the two entrances and exits
The normal mode for entering and leaving the vehicle by limiting the other entry / exit port to the exit / exit port, and using the two entry / exit ports as the entry / exit ports, and at least one of the exit / entry ports depending on the exit request. Of the three modes, namely, a storage priority mode in which the above-mentioned two storage ports are used as the respective storage ports, and at least one of the storage ports is used as the storage port in response to a storage request. Of which, at least two modes can be executed,
A mechanical parking lot consisting of a control device for selecting and executing one of these two modes. 6. The claim according to claim 5, wherein only one loading / unloading port is used as the loading / unloading port in the loading / unloading priority mode, and one loading / unloading port is used as the loading / unloading port in the loading / unloading priority mode. A mechanical parking lot characterized by having only the entrance and exit of 7. The apparatus according to claim 5, wherein the control device has at least one of the warehousing priority mode and the warehousing priority mode and the normal mode. Only one loading / unloading port is used as the loading / unloading port, and the one loading / unloading port is the same as the loading / unloading port which is the shipping port in the normal mode, and the loading / unloading port used as the loading / unloading port in the shipping priority mode is one. The parking lot is the same as the loading / unloading port, and the one loading / unloading port is the same as the loading / unloading port that is the loading / unloading port in the normal mode. 8. The mechanical system according to claim 5, wherein the control device is capable of executing three of the normal mode, the warehousing priority mode, and the warehousing priority mode. Parking Lot. 9. In the normal mode according to claim 5, when there is no request for warehousing, a pallet is placed on the transfer device at the one loading / unloading port, and the transfer device is moved to the one loading / unloading mode. A mechanical parking lot characterized in that, when there is no request for exiting from the mouth, the pallet is not placed on the transfer device of the other loading / unloading port, and the transfer device is put on standby in the storage section. . 10. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two access paths provided for the vehicles to enter the two entrances and exits, and a passage for each vehicle of the two entrances and exits to exit. Two exit and exit paths provided separately from the approach path, and one of the two entrances and exits to and from the entrance and exit,
The normal mode for entering and exiting the vehicle by limiting the other entry / exit port to the exit port, the entry priority mode in which the two entry / exit ports are used as the entry / exit ports, and the entry / exit of each of the two entry / exit ports 3 with shipping priority mode used as mouth
A control device that is capable of executing at least two modes out of the two modes, and that selects and executes one of the provided modes from at least one of the number of requests for warehousing and the number of requests for unloading. A mechanical parking lot. 11. The control device according to claim 10, comprising a normal mode and a shipping priority mode, wherein the control device executes the shipping priority mode when the number of storage requests is equal to or more than a predetermined number. The controller is provided to execute the normal mode when the number of requests is less than a predetermined number.
A mechanical parking lot characterized by. 12. The control device according to claim 10, wherein the control device has a normal mode, a storage priority mode, and a discharge priority mode, and the control device determines whether the number of storage requests is greater than a first predetermined number. Alternatively, when the number of shipping requests is larger than the second predetermined number, the shipping priority mode is executed when the value obtained by dividing the number of shipping requests by the number of shipping requests is larger than the first predetermined value, and the value is the first The storage priority mode is executed when the value is smaller than the second predetermined value which is smaller than the predetermined value of 1, and the value is between the first predetermined value and the second predetermined value, and the storage A mechanical parking lot, wherein the normal mode is executed when the number of requests is smaller than the first predetermined number and the number of leaving requests is smaller than the second predetermined number. 13. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two entrances provided for the vehicle to enter the two entrances and exits, and a passage for each vehicle exiting the two entrances and exits. The two entrances and exits provided separately from the entrance, and one of the two entrances and exits
The normal mode for entering and leaving the vehicle by limiting the other entry / exit port to the exit / exit port, and using the two entry / exit ports as the entry / exit ports, and at least one of the exit / entry ports depending on the exit request. Of the three modes, namely, a storage priority mode in which the above-mentioned two storage ports are used as the respective storage ports, and at least one of the storage ports is used as the storage port in response to a storage request. A mechanical parking lot, comprising: a control device that is capable of executing at least two modes; and a commander that executes any one of the at least two modes. 14. A mechanical parking lot according to claim 13, wherein the command device is provided so that a mode can be set for each time zone. 15. A mechanical parking lot according to claim 13, wherein the command device is provided so that the time zone can be set. 16. The storage priority mode according to claim 13, wherein when there is no request for storage, the two transfer devices place a pallet for mounting a vehicle on standby at each storage port. And the shipping priority mode is
A mechanical parking lot, characterized in that, when there is no request for unloading, the two transfer devices stand by in the storage part without placing a pallet. 17. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two entrances provided for the vehicle to enter the two entrances and exits, and a passage for each vehicle exiting the two entrances and exits. The two entrances and exits provided separately from the entrance, two indicators installed on the two entrances and indicating that the goods can be stored, and the two entrances and exits , One of the loading and unloading entrances,
Normal mode for entering and leaving the vehicle by limiting the other entry / exit port to the entry / exit port, and using the two entry / exit ports as the entry / exit port, and also using one entry / exit port as the exit / entry port priority There are three modes: a mode and a shipping priority mode in which the two loading / unloading ports are used as shipping ports and one loading / unloading port is used as a shipping port. Any one of the three modes is selected and executed. At the same time, a mechanical parking lot comprising: a control device for enabling the display of the display device upstream of the entry / exit port, which is the entry / exit port in the selected mode, to the entry / exit state. 18. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading a vehicle, and a vehicle between the storage unit and the two loading / unloading ports. Two transport devices for transporting, two access paths provided for each of the two entrances and exits for a vehicle to enter, and at least one entrance and exit port of the two entrance and exit ports, A passage through which the vehicle at the entrance / exit exits, and an exit / entrance provided separately from the entrance, and one entrance / exit of the two entrances / exits
The normal mode for entering and exiting the vehicle by limiting the other entry / exit port to the exit / exit port, and the two entry / exit ports as the entry / exit port, and when there is no entry, the two transfer devices A mechanical parking lot, comprising a storage priority mode in which each of the storage exits is on standby, and a control device for selecting and executing either the normal mode or the storage priority mode. 19. A storage unit capable of storing a large number of vehicles, two loading / unloading ports capable of loading and unloading, and transporting vehicles between the storage unit and the two loading / unloading ports. And two exit paths for the respective vehicles of the two entry / exit ports to exit, and at least one entry / exit port of the two entry / exit ports. A passage for a vehicle to enter the mouth, the entrance being provided separately from the exit, and one of the two entrances and exits
A normal mode for entering and leaving the vehicle by limiting the other entry / exit port to the exit / exit port, and using the two entry / exit ports as the exit port, and when there is no exit, the two transfer devices are used to transfer the two transfer devices. A mechanical parking lot, comprising: a delivery priority mode in which each loading slot is on standby, and a control device for selecting and executing either the normal mode or the delivery priority mode.