JPH084345A - Mechanical type parking tower garage - Google Patents

Abstract

PURPOSE:To provide a mechanical type tower garage capable of satisfying both cart type high speed performance and plane puzzle type high space efficiency. CONSTITUTION:Lifts E1 and E2, which serve as a car entrance, and a cart Care provided with an upper stage rail R1 and a lower stage rail R2 where a car-loaded pallet may be exchanged with an empty pallet simultaneously and car shelves H are installed in a checkered manner based on a plane puzzle method and designed to house a number of cars. Empty pallet lifts F3 and F4 are installed to a spot which is next to a cart running lane 6 and faced with a lift chamber, thereby receiving an empty pallet Pe from a cart C or sending the pallet thereto. This construction makes it possible to circulate the pallet Pe between the car shelf in a single stage structure and the cart C and the lifts E1 and E2 for the parking treatment and bind a high speed performance based on the cart pallet method with the plane puzzle method in an organic manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical multilevel parking system. More specifically, the present invention relates to a large-scale pallet type mechanical multi-level parking device.

[0002]

2. Description of the Related Art Two performances required for a large-scale multi-story parking system are high-speed entry / exit and high space efficiency. The former high-speed loading / unloading is a multi-storey multi-storey parking system, and in the case of the pallet method, the influence of the cycle time required for the pallet collection processing is dominant. In the case of a pallet type parking device, since it takes extra time to process an empty pallet, the loading / unloading cycle time is generally longer than that of the palletless type, which is a disadvantage.
The present inventor has proposed Japanese Patent Application No. 5-326092 as a pallet type mechanical parking device with a shortened cycle time. In this parking system, the lift, trolley, and car rack are all two-tiered with upper and lower rails, and the actual pallet and empty pallet are exchanged at the same time between the lift and trolley and between the trolley and car rack to process empty pallets. The cycle time is shortened by eliminating the time that only this has. Although this mechanical parking lot has a faster entry / exit cycle time, since the vehicles are transported by trolleys, parking spaces can be reserved only on both sides of the lanes for trolleys, and there are lanes for trolleys that cannot be used directly as parking spaces. The space efficiency of the parking lot was not high because it occurred for each storage layer. On the other hand, the applicant has proposed a plane puzzle type parking device as a parking device having a very high space efficiency in Japanese Patent Laid-Open Nos. 63-74804 and 63-74805. In this plane puzzle method, a large number of car shelves are juxtaposed in a grid pattern, and each car rack has a 4-way transport function that transports pallets to the front, rear, left, and right. Also, place a number of pallets that is one less than the number of car shelves on each car rack. , It is designed to perform loading and unloading work by moving the pallet on each car rack forward, backward, left and right (so-called puzzle operation) while creating an empty space where no pallet is placed in the transport direction of the pallet with loading and unloading vehicles. Is. In this plane puzzle type parking lot, there is almost no space for accommodating automobiles, such as a truck traveling lane, so it has a high space efficiency, but in puzzle operation, the transportation route becomes long and the direction is often changed. Therefore, there is a drawback that the loading / unloading cycle time is long. As described above, both the trolley-type parking device and the plane puzzle-type parking lot have advantages and disadvantages, and no mechanical multilevel parking device has both advantages.

[0003]

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a mechanical multilevel parking apparatus which satisfies both the high speed of the bogie system and the high space efficiency of the plane puzzle system.

[0004]

Means for Solving the Problems A mechanical multi-story parking apparatus of the present invention comprises an entry / exit layer and a storage layer on multiple floors, and an entry / exit room for passengers equipped with a passenger lifter is installed in the entry / exit layer. Each of the storage layers is provided with a truck lane on which a truck travels and a number of car shelves along the truck lane.
A parking space is provided by arranging multiple parking lanes arranged in parallel, and the loading / unloading lift room that raises / lowers the loading / unloading lift is located at a position adjacent to the loading / unloading room lifter, and is fully accessible from the loading / unloading room. Formed between the storage layers, each of the car shelves is a four-way carrier for transporting a pallet on which an automobile is mounted in a longitudinal direction (referred to as a longitudinal direction; hereinafter the same) and a lateral direction (referred to as a lateral direction; hereinafter the same). The loading / unloading lift chamber is provided in a parking lane adjacent to the vehicle traveling lane of each of the storage layers, which is provided with a two-way transport mechanism that transports a mechanism or a pallet on which an automobile is mounted only in a lateral direction (that is, a lateral direction). An empty pallet lifter is installed at a position facing the truck traveling lane, and both the loading and unloading lifts and the truck are equipped with an upper rail for mounting the actual vehicle pallet and an empty pallet. Lower rails for loading are provided at the top and bottom, and pallet transfer means for paying out and retracting the actual vehicle pallet and pallet feeding mechanism for paying out and retracting empty pallets are provided. Both the empty pallet lifter and the empty pallet lifter have upper rails and lower empty pallet receiving portions at the same level as those of the loading / unloading lift and trolley, and transfer pallets between the upper rail and lower empty pallet receiving portions. It is characterized by comprising a pallet transfer mechanism and a pallet feeding mechanism for paying out and retracting the pallet between the loading / unloading lift and the carriage.

In the present invention, the entry / exit room for loading and unloading is a concept that includes not only the entry and exit rooms for loading and unloading but also the entry and exit room for loading and unloading. . Further, the loading / unloading lift chamber is a concept including not only a lift chamber for loading and unloading lift chamber, but also a lift chamber for loading / unloading. Further, the loading / unloading lift is a concept that includes not only a loading lift and a loading lift, but also a loading / unloading lift.

In the dolly according to the present invention, traveling drive devices are installed at the front and rear portions of both ends of the base frame in the longitudinal direction, and the dolly is provided at the front end and the rear end of the pallet mounting portion at the longitudinal center. It is preferable to attach an upper rail and a lower rail extending in the lateral direction of the pallet, and the pallet transfer means is composed of a pair of transfer devices respectively installed at the front end and the rear end of the pallet mounting portion of the truck. A transfer frame in which the transfer device slides between a base frame and a position on the base frame projecting laterally from the carriage in a lateral direction of the carriage and a retracted position.
It is preferably composed of an endless chain that circulates along the lateral direction of the carriage in the moving frame, and engagement pins that are attached to the endless chain and that engage with engagement recesses formed at the four corners of the pallet. It is preferable that the empty pallet feeding mechanism includes a roller pivotally supported by the base frame at the same level as the lower rail and a drive motor for the roller. The lift according to the present invention includes a horizontal base frame and vertical frames attached to both ends of the base frame, and upper and lower rails extending in the lateral direction of the base frame are provided at both longitudinal ends of the base frame. Preferably, the pallet transfer means comprises a pair of transfer devices installed at both ends of the base frame, and the transfer devices are fixed to the base frame and extend in the lateral direction. From the frame, the endless chain that circulates in the fixed frame along the lateral direction of the base frame, and the engagement pins that are attached to the endless chain and that engage with the engagement recesses formed at the four corners of the pallet. It is preferable that the empty pallet feed mechanism of the lift is at the same level as the lower rail. A roller that is axially supported by the over scan frame, preferably made of a drive motor of the roller. The empty pallet lifter in the present invention is
From a frame provided with a pallet feed mechanism that laterally feeds pallets (which is the same in the short-side direction; the same applies below), and upper rails and lower empty pallet receiving portions that are provided outside both longitudinal ends of the frame. Furthermore, it is preferable to further comprise an empty pallet transfer mechanism for transferring the empty pallet between the upper rail and the lower empty pallet receiving portion, and the empty pallet transfer mechanism comprises the frame lifting mechanism and the upper rail. It is preferable to include an advancing / retreating mechanism for advancing / retreating between a fixed position and a retracted position retracted outside the fixed position.

[0007]

According to the present invention, while the actual vehicle pallet is transferred between the upper and lower rails between the loading and unloading lift and the passenger compartment lifter in the loading and unloading layer, empty space is provided between the lower rail and the lower empty pallet receiving portion. The pallets can be transferred at the same time. Further, in the storage layer, the empty pallet can be simultaneously transferred between the lower rails while the actual vehicle pallet is transferred between the upper and lower rails between the loading / unloading lift and the carriage. In this way, the processing of empty pallets is performed at the same time as the transfer of the actual vehicle pallets, which is the same as apparently no processing of empty pallets, and similar to the palletless type, the loading / unloading operation can be performed in a short time. Further, in the present invention, since the empty pallet lifter is provided in each storage layer, the empty pallet can be received or passed from the dolly, so that the car shelf has a one-step structure at the same level as the upper rail of the dolly. Nevertheless, empty pallets can be sent, collected, and circulated to the loading / unloading lift and to each car rack. Therefore, since the pallets can be circulated between the car shelves in the parking space and the loading / unloading rooms, the plane puzzle parking lot and the trolley parking lot can be functionally combined. Therefore, a large number of car shelves are provided in a grid pattern, and a four-way transport mechanism that transports a pallet on which an automobile is placed vertically and horizontally or a two-way transport mechanism that transports a pallet only horizontally is provided. As a result, the high space efficiency, which is an advantage of the plane puzzle method that can accommodate one car less than the total number of shelves, can be inherited as it is.

In the bogie of the present invention, since the traveling drive devices are separately arranged in the front and rear, the capacity of the drive device such as the motor can be small, and the upper rail and the lower rail are attached to the base frame, and the lower rail is Since it is for storing empty pallets, the height to the upper rail is low, the height of the entire dolly including the car to be transported can be reduced accordingly, and the height of the storage layer does not have to be made higher than necessary, so it is a parking device. The volumetric efficiency of can be increased. Since the pallet transfer means for the trolley combines the two mechanisms of the moving frame and the endless chain, it takes a sufficient amount of stroke and is compact when not in use, and it corresponds to both longitudinal ends of the pallet. Since the transfer device is composed of a pair of transfer devices, each transfer device can be further downsized, and the size of the carriage can be reduced. Further, since the empty pallet feeding mechanism mainly includes rollers at the same level as the lower rail, it is compact and does not increase the height of the trolley.

In the lift of the present invention, the upper rail and the lower rail are attached to the base frame, and the lower rail is used for storing an empty pallet. Therefore, the height to the upper rail can be made low and the lift is compact. The pallet transfer means for the lift is a retracting means using an endless chain, and can be configured to be elongated, so that it is possible to reduce the longitudinal dimension and the height dimension of the lift. Further, the empty pallet feeding mechanism is also mainly composed of rollers at the same level as the lower rail, so that it is compact and the lift does not have to be unnecessarily large. Since the empty pallet lifter of the present invention has an empty pallet transfer mechanism, the empty pallet is transferred between the upper rail and the lower empty pallet receiving portion,
An empty pallet can be collected between the two-level rail type trolley and the one-level parking rack, and the trolley type pallet type parking device and the plane puzzle type parking device can be organically combined. Further, the frame elevating mechanism and the upper rail advancing / retreating mechanism have a structure of low height, and can reliably transfer the empty pallet between the upper rail and the lower empty pallet receiving portion.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. First, the overall configuration of a mechanical multi-level parking device to which the present invention is applied will be described with reference to FIGS. In FIG.
1 to 4 are four storage layers, and the uppermost layer 5 is a loading / unloading layer provided with a loading / unloading chamber 6 and a loading / unloading chamber 7. Then, in the passenger compartments 6 and 7, lift type passenger compartment lifters F1 and F2 are installed.
Is installed, and an elevating sidewalk Wa and a fixed sidewalk Wb are installed on both sides of the respective passenger compartment lifters F1 and F2. In the passenger compartments 6 and 7, the passenger compartment lifters F1 and F2
At a position adjacent to the passenger compartments 6, 7 to the lowest containment layer 4
A storage lift chamber 8 and a storage lift chamber 9 are vertically formed from the top to the bottom so that the storage lift E1 and the storage lift E2 can be moved up and down. The number of floors in the storage layer is arbitrary,
The number of layers may be 3 or less, or 5 or more. Each of the storage layers 1 to 4 is divided into a plurality of rows, for example, 6 rows of long lanes L1 to L6 as shown in FIG. The center lane L6 is a trolley traveling lane, and right and left parking spaces consisting of the parking lanes L1 to L3 and left side parking spaces consisting of the parking lanes L4 to L5 are arranged on the left and right thereof.
Empty pallet lifters F3 and F4 are installed in the parking lane L1 adjacent to the truck traveling lane L6 in each of the storage layers 1 to 4 so as to face the warehousing lift E1 and the unloading lift E2 across the trolley traveling lane L6. ing. The parking space may be on one side or both sides of the vehicle traveling lane L6, and the number of lanes is arbitrary. Therefore, a wide parking space with four or more lanes may be provided.

Each of the parking lanes L1 to L5 is divided in the longitudinal direction (the number is 12 in the illustrated example, but the number can be arbitrarily increased or decreased), and each of the parking lanes is a parking room. One car shelf H, which will be described later, is installed in each room. As a result of such several parking lanes being installed in parallel, the car racks H are arranged in a grid pattern in each parking space. As will be described later, the car rack H is provided with a four-way transport mechanism for transporting a pallet on which an automobile is placed in the front, rear, left and right, and the pallet is placed on the upper surface thereof. In the illustrated example, the number of all shelves H in the right parking space is
There are 34 pallets, but if you put 33 pallets on each car rack H and create an empty space where only one pallet is not mounted, you can make full use of the four-way transport mechanism of each car rack H, By sequentially moving the empty space and then moving the actual vehicle pallet (so-called puzzle operation), the pallet is freely moved between the parking lanes L2 and L3 on the back side and the parking lane L1 adjacent to the bogie lane L6. be able to. In other words, only one less than the total number of vehicle shelves H can be used for parking the vehicle, so that the space efficiency is very high. Of course, this also applies to the left parking spaces L4 to L5 on the opposite side. When the car is full, the empty pallet lifters F3 and F4 can also be used as car shelves.

The basic construction of the parking device of the present invention will be described in more detail with reference to FIG. Figure 3 (A) shows the passenger compartments 6 and 7.
3B is a sectional view of an empty pallet lifter F3, F4 installation location in the storage layer, and FIG. 3C is a sectional view of a car shelf H installation location. As shown in FIG. 3A, each of the loading / unloading lifts E1 and E2 has an upper rail R1 for transferring an actual vehicle pallet Pa and a lower rail R2 for transferring an empty pallet Pe. Further, as shown in FIGS. 3 (B) and 3 (C),
One trolley C is arranged for each storage layer, and is adapted to travel on the rails installed in the trolley traveling lanes of each storage layer, which also includes an upper rail R1 and a lower rail R2. The loading / unloading room lifters F1 and F2 have an upper rail R1 and a lower empty pallet receiving portion, and a transfer mechanism for transferring a pallet between the upper rail R1 and the lower empty pallet receiving portion,
It has a pallet feeding mechanism for laterally feeding the pallet P. The empty pallet lifters F3 and F4 also have the upper rail R1 and the lower empty pallet receiving section, and the pallet transfer mechanism for transferring the pallet between the upper rail R1 and the lower empty pallet receiving section and the pallet P are fed laterally. It has a pallet feed mechanism. Further, although omitted in FIG. 3 and described in detail with reference to FIGS. 11 to 28, the loading / unloading lifts E1 and E2 and the trolley C are pallet transfer means for emptying and retracting an actual vehicle pallet and an empty space. It is equipped with a pallet feed mechanism for paying out and retracting pallets.

Therefore, between the warehousing lift E1 and the loading / unloading room lifter F1, the actual rail pallet Pa is used by using the upper rail R1.
It is possible to transfer the empty pallets at the same time by using the lower rail R2 and the empty pallet receiving portion while transferring.
This is the same between the exit E2 and the passenger compartment lifter F2. Further, even between the warehousing lift E1 and the dolly C, the empty pallet Pe can be simultaneously transferred using the lower rail R2 while the actual vehicle pallet Pa is transferred using the upper rail R1. This is also the same between the delivery lift E2 and the carriage C. Further, between the carriage C and the empty pallet lifters F3 and F4, the empty pallets can be transferred between the upper rails R1 and between the lower rail R2 and the lower empty pallet receiving portion. F3 and F4 can transfer empty pallets between their own upper rail R1 and lower empty pallet receiving section by the pallet transfer mechanism. Also, the truck C can transfer the actual vehicle pallet Pa and the empty pallet Pe between the upper rail R1 and the vehicle rack H.

Next, a loading / unloading operation in the mechanical parking lot of the present invention using the transfer mechanism and the like will be described. 4 to 9, the transfer mechanism and the like are omitted from illustration so as not to complicate the drawings more than necessary. First, the warehousing operation will be described with reference to FIGS. FIG. 4 shows a warehousing operation from the loading / unloading room 6 to the warehousing lift E1, and FIG. 5 shows a warehousing operation from the warehousing lift E1 to the parking room. The operation after the storage request is generated is as follows. The following symbols ~ correspond to symbols ~ in Figs. In the loading / unloading room for loading and unloading, the actual vehicle pallet Pa and the empty pallet Pe are simultaneously exchanged between the loading lift E1 and the loading / unloading room lifter F1. That is, at the same time that the actual vehicle pallet Pa with the warehousing vehicle is transferred from the upper rail of the loading / unloading room lifter F1 to the upper rail of the warehousing lift E1, the lower tier of the loading / unloading lifter F1 is empty from the lower rail of the warehousing lift E1. An empty pallet Pe is transferred to the pallet receiving section. On the other hand, dolly C
Drives to an empty pallet address. The warehousing lift E1 descends to the warehousing storage layer, and the passenger compartment lifter F1 rises. Truck C receives an empty pallet Pe on the upper rail at an empty pallet address. The dolly C travels to the warehousing lift address and, during this time, moves the empty space es in the right parking lanes L1 to L3. This is performed so that the traveling distance becomes shorter when the actual vehicle pallet Pa into which the dolly C is to be stored later is stored in the vehicle shelf H. The empty pallet Pe on the upper rail of the truck C is transferred onto the upper rail of the empty pallet lifter F3, and the empty pallet Pe on the lower rail of the empty pallet lifter F3 is moved onto the lower rail of the truck C. Simultaneous transfer of pallets is performed between the carriage C and the warehousing lift E1. That is, the actual vehicle pallet Pa is the loading lift E1
Simultaneously with the transfer from the upper rail of the truck to the upper rail of the truck C, the empty pallet Pe is transferred from the lower rail of the truck C to the lower rail of the loading lift E1. On the other hand, the empty pallet lifter F3 rises. The warehousing lift E1 rises to the warehousing entrance / exit room. The empty pallet lifter F3 carries the empty pallet Pe and descends. The trolley C travels to an empty space address. When the dolly C arrives at the receiving shelf address, the actual vehicle pallet Pa on which the incoming vehicle is placed is transferred to the vehicle shelf H. After that, when moving the incoming vehicle to the parking lanes L2 and L3 on the back side, the actual vehicle pallet may be moved while moving the empty space. This completes warehousing. The above warehousing operation was on the right parking lane L1 to L3 side,
The parking operation can be similarly performed on the left side parking lanes L4 to L5.

Next, a warehousing operation will be described with reference to FIGS. FIG. 6 illustrates a shipping operation from the parking room to the shipping lift E2, and FIG. 7 illustrates a shipping operation from the shipping lift E2 to the passenger compartment 7. The operation after the issue request is issued is as follows. In addition, the following symbols of ~ are shown in FIG.
Corresponding to the symbol in 7 If there is an actual vehicle pallet equipped with a delivery vehicle (hereinafter referred to as a delivery vehicle pallet) in the parking lane on the back side,
While moving the empty space at L2 and L3, advance the pallet of the outgoing vehicle to the front row parking lane L1 adjacent to the bogie lane L6. On the other hand, the trolley C travels toward the delivery shelf address, and the delivery lift E2 descends toward the delivery storage layer. When the truck C arrives at the delivery shelf address, the actual vehicle pallet Pa is transferred from the truck shelf H to the upper rail of the truck C. A trolley C equipped with an actual vehicle pallet Pa travels to a shipping address. During this time, the empty space is moved within each of the parking lanes L1 to L3. This is performed so that the traveling distance can be shortened when the dolly C returns the empty pallet to the car rack H later. When the truck C arrives at the delivery lift address, the pallets are transferred between the delivery lift E2 and the truck C. At this time, the actual vehicle pallet Pa is transferred from the upper rail of the trolley C to the upper rail of the delivery lift E2 and at the same time,
Empty pallet Pe is transferred from the lower rail of E2 to the lower rail of trolley C. In this way, real pallet Pa and empty pallet Pe
As a result of simultaneous transfer of the sheets, the time required only for the empty pallet processing does not occur, and the operation can be performed without apparently processing the empty pallet. The unloading lift E2 moves up to the unloading passenger compartment, and the carriage C receives the empty pallet Pe from the empty pallet lifter F4 on the upper rail. Empty pallet lifter F4 descends. On the other hand, the exit E2 has reached the exit passenger room, and the passenger lifter
With F2, the actual pallet Pa is exchanged using the upper rail, and at the same time the empty pallet Pe is exchanged using the lower rail. Even in this step, the time required only for the empty pallet processing does not occur, and the operation can be performed so that there is no apparent empty pallet processing. The trolley C sends the empty pallet Pe to the lower empty pallet receiving portion of the empty pallet lifter F4. On the other hand, a car leaving the passenger compartment lifter F2 is leaving. Cart C travels to the space address. The dolly C sends out the empty pallet Pe on the upper rail R1 to the car rack H. This completes the shipping operation.

Next, the continuous loading / unloading operation will be described with reference to FIGS. The following symbols ~ correspond to the symbols ~ in Figs. The shipping lift E2 descends to the shipping storage layer. In addition, the trolley C travels to the delivery shelf address. On the other hand, in the loading / unloading room for loading and unloading, the actual vehicle pallet Pa on which the loading vehicle is loaded is placed on the loading lift E1, and the empty pallet Pe is returned to the loading / unloading room lifter F1. When the carriage C reaches the delivery shelf address, the actual vehicle pallet Pa is transferred to the carriage C. On the other hand, the warehousing lift E1 carries a warehousing vehicle and descends to the warehousing storage layer. The trolley C on which the delivery vehicle is placed travels to the delivery lift address. The actual vehicle pallet Pa is transferred from the dolly C to the unloading lift E2, and the empty pallet Pe is transferred from the unloading lift E2 to the lower rail R2 of the dolly C. The trolley C having the empty pallet Pe travels to the receiving lift address. At the same time, the exit E2 also rises toward the exit passenger room. In the loading / unloading room, the outgoing vehicle is moved from the loading lift E2 to the loading / unloading room lifter F2, and the empty pallet Pe is moved from the loading / unloading room lifter F2 to the shipping lift E2. Then, the exit vehicle exits from the exit room. This completes shipping. On the other hand, the warehousing lift E1 is descending to the warehousing storage layer, and the pallet is simultaneously exchanged with the truck C that has arrived at the warehousing lift address. That is, the warehousing vehicle is moved to the carriage C, and the empty pallet Pe is moved to the warehousing lift E1. The warehousing lift E1 is loaded with an empty pallet and lifted up to the unloading passenger compartment, and the dolly C travels to an empty car rack H. When the truck C arrives at the car rack address where the truck C is stored, the truck is transferred to the parking rack H. This completes warehousing. As described above, according to the present invention, continuous simultaneous loading and unloading into and from the same storage layer is possible.

The advantages of the above-mentioned warehousing operation, warehousing operation and continuous warehousing operation will be described below. (1) Entry / exit lifts for entry / exit passenger compartments 6 and 7
Pallet exchange between E1, E2 and passenger lifters F1, F2,
In the pallet exchange between the loading / unloading lifts E1 and E2 and the trolley C in the storage layer, since the actual vehicle pallet Pa and the empty pallet Pe are simultaneously exchanged, the time required only for processing the empty pallet becomes unnecessary, The loading / unloading cycle time has been shortened to almost the same level as the palletless parking lot. (2) Since the empty pallet lifters F3 and F4 are provided in each storage layer, the empty pallet Pe can be received or passed from the dolly C, so that the car rack H has the same level as the upper rail R1 of the dolly C. Despite the one-stage structure,
An empty pallet Pe is provided between the delivery lifts E1 and E2 and each car rack H.
Can be circulated. Therefore, it is possible to circulate pallets between all the vehicle shelves H in the parking space and the loading / unloading passenger compartments 6 and 7, and to circulate empty pallets between the pallets and the puzzle-type parking space. (3) Therefore, the high space efficiency of the plane puzzle method can be achieved. That is, as shown in FIG. 10 (A), in the right side parking spaces of the parking lanes L1 to L3, if an empty space es in which only one of the 34 parking rooms is not palletized is provided, the empty space es Is moved as shown in FIGS. 2B and 2C, the rest of the pallets can be moved sequentially, and the car can be put into or taken out of any of the parking rooms. Therefore, 33 rooms, one less than the total number of parking rooms, can be used as effective parking spaces, which is extremely space efficient. This means that parking lane L4 ~
The same applies to the L5 parking space, and the effective parking space is 21 of the 22 parking spaces. When the vehicle is full, two cars can be parked on the empty pallet lifters F3 and F4. Therefore, the parking device of this embodiment can enjoy the same high space efficiency as the flat puzzle parking lot.

Next, the structure of each part in the parking lot of the present invention will be described in detail. In each of the parking spaces of the storage layers 1 to 4, car shelves H for storing automobiles are arranged in a grid pattern, and the car shelves H are provided with a four-way pallet transfer mechanism or a two-way pallet transfer mechanism. . Car shelf H is a figure
As shown in FIG. 11, it has a rectangular frame structure and is supported on the floor by appropriate columns or legs. A pallet transport mechanism is incorporated in each of the car shelves H. This pallet transport mechanism F is as shown in FIG. That is, it has four pallet support wheels 12 provided on the upper surface of the frame 11, and two of the four pallet support wheels 12 located on the diagonal line are rotated by the drive motors 13 directly connected to each other. It is supposed to be done. A link 14 for direction change is connected to the four pallet support wheels 12, and a motor 15 for link operation is connected to one end of the link 14. When the motor 15 is driven, the four pallet support wheels 12 can simultaneously turn 90 degrees in the same direction via the link 14. Rollers 16 sandwiching rails 20 and 21 formed on the back surface of a pallet P, which will be described later, are provided on both sides of each pallet support wheel 12. Further, at the front edge and one side edge of the frame 11, free-rotating rollers 17 for supporting a pallet P on the way to an adjacent car rack H or carriage C are attached.

As shown in FIG. 12, the pallet P for loading an automobile is a flat plate-shaped carrying member whose surface is an automatic vehicle mounting surface. Then, on the back surface thereof, two longitudinal rails 20 extending in the longitudinal direction and two transverse rails 21 extending in the lateral direction are assembled in a cross beam shape, and each rail 20,
A swing rail 22 is attached to the intersection of 21.
As shown in FIGS. 13 to 14, the swivel rail 22 is rotatably supported by a shaft 23. The lower surface of the swivel rail 22 is in contact with the pallet support wheel 22 on the transport mechanism F side, and the side surface thereof is in contact with the roller 16. It is like this. Further, rails 24 are formed on both short edges of the pallet P, and engaging recesses 25 are formed at the four corners of the pallet P, with which engaging pins of an actual vehicle pallet transfer device described later engage. Therefore, when the pallet P is placed on the transport mechanism F of the car rack H and the pallet support wheels 12 are rotated, the pallet P is moved by the transport mechanism F. Then, if the direction of the pallet support wheels 12 is changed in a state where the slewing rails 22 are positioned on the pallet support wheels 12, the slewing rails 22 of the pallet P can also be rotated in the same direction. It can be transported both longitudinally and laterally. This enables a puzzle operation of moving the pallet P back and forth and left and right in the entire parking space. The two-way pallet transfer mechanism that transfers pallets only in the lateral direction (shorter direction) is different from the above-described four-way pallet transfer mechanism only in that the pallet support wheels are not turned. Are the same. This two-way pallet transfer mechanism is particularly effective for a mechanical parking device having two shelves on the sides of the carriage traveling lane.

FIG. 16 shows a passenger compartment 6 for loading and unloading.
It is a top view of (7), and shows a part of lift chamber 8 (9), the left sidewalk Wa, and the passenger compartment lifter F1 (F2). In addition,
The right sidewalk is omitted. FIG. 17A is a side view of the sidewalk Wa, and FIG. 17B is a side view of the passenger compartment lifter F1 (F2). Passenger room lifter F1 (F2) in Figures 16 and 17 (B)
Has a frame 31 assembled in a cross pattern, and the outer shape of the frame 31 is slightly smaller than that of the pallet P.
Then, the frame 31 has the following pallet feed mechanism.
30A is provided. That is, on both sides of the short side of the frame 31, there are three rollers 32, 33, 34 on both sides.
The roller 32 on the lift side is a drive roller to which a motor 35 is connected. The remaining two rollers 33 and 34 are free rollers. The feed rail 21 on the lower surface of the pallet P is placed on these rollers 32, 33, 34, and is fed by the drive roller 32 to be paid out or drawn in the width direction. In addition, pallet P
An appropriate number of side rollers 36 are attached to guide the lateral movement of the. Further, an elevating mechanism 30B for the passenger compartment lifters F1 and F2 is provided on the lower surface of the frame 31. This lifting mechanism 30B is equipped with a screw jack 38 driven by a motor 37.
And a sprocket 40 around which a chain 39 connected to the tip of the screw jack 38 is wound, arms 42 attached to both ends of a shaft 41 that supports the sprocket 40, and the arm.
It is composed of a roller 43 at the tip of 42 and a bracket 44 that rotatably supports the shaft 41. The roller 43 at the tip of the arm 42 contacts the lower surface of the frame 31 and receives the weight of the frame 31. A guide 45 and frame installed on the floor
An elevating guide 47 including a slider 46 attached to 31 is provided. Therefore, when the arm 42 is swung, the frame 31 moves up and down to move the pallet P to the raised position (FIG. 17 (B)).
(Solid line position on the left side of FIG. 17) and the lowered position (solid line position on the right side of FIG. 17B).

16 to 17, passenger compartment lifters F1 and F2
Movable upper rails R1 are installed outside both ends of. The upper rail R1 is set to a height at which the actual vehicle pallet Pa is transferred, and is composed of an L-shaped member in a side view, and a roller 26 is pivotally mounted on the upper surface thereof. Rails 24 on both short edges of the pallet P run on the rollers 26. In addition, the rollers 32 in the lower limit of the frame 31,
The upper surface of 33, 34 is used as the lower pallet receiving part. Of course, the upper rail R1 and the lower empty pallet receiving portion are leveled with the upper rail R1 and the lower rail R2 of the lifts E1 and E2.

The forward / backward moving mechanism 90 is attached to the upper rail R1.
Is provided. That is, the upper rail R1 is a slider
The slider 91 is fixed on the rail 91, and the slider 91 slides on the rail 92, and the cylinder 93 moves forward and backward. In FIG. 17 (B), the upper rail R1 is on the left side, and supports the actual vehicle pallet Pa. On the right side, the upper rail R1 is in a retracted state, and is retracted so as to be separated from the short side of the empty pallet Pe. In this retracted state, the upper rail R1 and the short side of the pallet P do not interfere with each other, so that the pallet P can be lifted and lowered by the passenger compartment lifters F1 and F2. Therefore, with the upper rail R1 retracted, when the lifting mechanism 30B is operated, the empty pallet Pe is raised from the lower level to the upper level, and when the upper rail R1 is re-entered, the empty pallet Pe is received in the lower empty pallet. It can be moved from the department to the upper rail R1. Further, when the empty pallet Pe is supported by the lifting mechanism 30B and the upper rail is retracted and then lowered, the empty pallet Pe can be moved from the upper rail R1 to the lower empty pallet receiving portion. By the advancing / retreating mechanism 90 and the elevating mechanism 30B,
The pallet transfer mechanism referred to in the claims is constituted.

Further, fixed upper rails r4 and lower rails r5 are installed near the front and rear ends of a sidewalk Wa which will be described later. The upper rail r4 and the lower rail r5 are level with the upper rail R1 and the lower rail R2,
It is used to support the pallet when transferring the actual vehicle pallet Pa and the empty pallet Pe between the passenger compartment lifters F1 and F2 and the lifts E1 and E2 described later. The sidewalk Wa is a rectangular plate member that fills the space between the elevator room 8 (9) and the passenger compartment lifter F1 (F2). As shown in FIG. 17 (A), a pantograph-type lifting mechanism is provided on the lower surface of the sidewalk Wa.
A 48 is mounted so that it can be raised and lowered between a raised position shown on the left and a lowered position shown on the right. At the ascending position, passengers in and out of the car use it to get in and out of the car. When it descends, it is in a retracted position so as not to interfere with the transfer of the actual vehicle pallet Pa and the empty pallet Pe.

FIG. 18 is a plan view (A) and a side view (B) of the empty pallet lifter F3 (F4). The structure of this empty pallet lifter F3 (F4) is as shown in Figures 16 to 17.
Since the structure is substantially the same as that of F1 (F2), the same parts are designated by the same reference numerals and described below. Empty pallet lifter
Each of F3 and F4 has a frame 31 assembled in a cross beam shape, and the frame 31 is provided with a pallet feed mechanism 30A. That is, three rollers 32, 33, and 34 are axially attached to the short sides of both ends of the frame 31, respectively, and the roller 32 on the trolley side is a drive roller to which a motor 35 is connected. The remaining two rollers 33 and 34 are free rollers. The feed rail 21 on the lower surface of the pallet P is placed on these rollers 32, 33, 34, and is fed by the drive roller 32 to be paid out or drawn in the width direction. Further, in order to guide the lateral movement of the pallet P, an appropriate number of side rollers 36 are attached. Further, on the lower surface of the frame 31, a lifting mechanism 30 for empty pallet lifters F3 and F4 is provided.
B is provided. The elevating mechanism 30B includes a sprocket 40 around which a screw jack 38 driven by a motor 37 and a chain 39 connected to the tip of the screw jack 38 are wound.
An arm 42 attached to both ends of a shaft 41 that supports the sprocket 40, a roller 43 at the tip of the arm 42, and a shaft 41.
And a bracket 44 for rotatably supporting the. The roller 43 at the tip of the arm 42 is in contact with the lower surface of the frame 31. A guide 45 and frame installed on the floor
An elevating guide 47 including a slider 46 attached to 31 is provided. Therefore, when the arm 42 is swung, the frame 31 moves up and down to move the pallet P to the raised position (FIG. 18 (B)).
(Solid line position on the left side of FIG. 18) and the lowered position (solid line position on the right side of FIG. 18B).

Movable upper rails R1 are installed outside both ends of the empty pallet lifters F3 and F4. The upper rail R1 is set to a height at which the actual vehicle pallet Pa is transferred, and is composed of an L-shaped member in a side view, and a roller 26 is pivotally mounted on the upper surface thereof. Rails 24 on both short edges of the pallet P run on the rollers 26. Also,
The upper surfaces of the rollers 32, 33, and 34 at the lower limit of the frame 31 serve as the lower empty pallet receiving portion. Of course, the upper rail R1 and the lower empty pallet receiving portion are leveled with the upper rail R1 and the lower rail R2 of the truck C. An advance / retreat mechanism 90 is provided on the rail R1. That is, the upper rail R1 is fixed on the slider 91, the slider 91 slides on the rail 92, and the cylinder 93 moves forward and backward. Figure 18
In (B), the upper rail R1 is on the left side and supports the actual vehicle pallet Pa. On the right side, the upper rail R1 is in a retracted state, and is retracted so as to be separated from the short side of the empty pallet Pe. In this retracted state, the upper rail R1 and the short side of the pallet P do not interfere, so
The pallet P can be moved up and down by the empty pallet lifters F3 and F4. Therefore, if the lifting mechanism 30B is operated with the upper rail R1 retracted, the empty pallet will be
Raise Pe from the lower level to the upper level,
When R1 is entered again, the empty pallet Pe can be moved from above the lower empty pallet receiving portion to above the upper rail R1. The lifting mechanism 30B supports the empty pallet Pe,
When R1 is retracted and then lowered, the empty pallet Pe can be transferred from the upper rail R1 onto the lower empty pallet receiving portion. The advancing / retreating mechanism 90 and the elevating / lowering mechanism 30B constitute a pallet transferring mechanism referred to in the claims.

Roller 3 of the empty pallet lifter F3, F4
The height of the upper surface of 2, 33, 34 must be at the same level as the height of the rollers 12, 17 of the pallet transport mechanism F of the car rack H. In addition, 95 is a shelf in the parking room. As mentioned above, this empty pallet lifter F3, F4 also has a pallet feed mechanism 30A.
Since it has a pallet transfer mechanism consisting of an advancing / retreating mechanism 90 and a lifting mechanism 30B, it is possible to transfer the empty pallet Pe between the upper rail R1 and the lower empty pallet receiving section, and The empty pallet Pe can be sent in or pulled out.

FIG. 19 is a plan view (A) and a side view (B) of the carriage C, and FIG. 20 is a front view of the carriage C. 51 is the base frame of the trolley C, which is the pallet mounting part in the center when viewed in the longitudinal direction
52, a front part 53 in front of the pallet mounting part 52, and a rear part 54 in the rear. Then, the empty pallet feeding mechanism 50 is installed on the placing portion 52 at the center. Also, the pallet loading section
At the front and rear ends of 52, the upper rails are
R1 and lower rail R2 are installed. Further, pallet transfer means is installed at the front and rear ends of the pallet mounting portion 52.
However, in FIG. 19 (A), reference numeral 70 indicates only the installation location,
The details will be described later. A traveling drive device 60 is installed in the front portion 53 and the rear portion 54. 61 is a running wheel and its drive shaft 62
A motor 63 is connected to the motor via a speed reducer. In the trolley C of this embodiment, two motors 63 are arranged in the front and rear.

The pallet feeding mechanism 50 comprises four rollers 55 axially mounted on a base frame 51. The four rollers 55 are two lateral rails on the lower surface of the pallet P shown in FIG. Two at a position in contact with 21, and two at the right side edge and two left side edges of the carriage C, respectively. A drive motor 56 is connected to at least one of the two rollers 55 on one diagonal line. The other two rollers 55 on the diagonal line are free rollers. The drive motor 56 may be connected to all the four rollers 55. By this pallet feeding mechanism 50, empty pallets Pe can be delivered and received between the loading / unloading lifts E1 and E2 and the empty pallet lifters F3 and F4.

FIG. 21 is a plan view of one side of the pallet transfer means,
22 is a side view of the same, FIG. 23 is a view taken along the line VII in FIG. 21, and FIG.
24 is a view taken along the line VIII in FIG. This pallet transfer means is composed of a pair of transfer devices. Transfer device 70
The configuration of is as follows. 21 to 22, reference numeral 71 denotes a base frame, and a rail 72 is installed in the longitudinal direction on the upper surface of the base frame on the outer side thereof. Reference numeral 73 denotes a moving frame, and two sliders 74 fixed to the lower surface of the moving frame 73 slide on the rail 72. Figure
As shown in FIG. 24, a rack base 75 is attached so as to project outward from the moving frame 73, and a rack 76 is provided on the upper surface of the rack base 75 as shown in FIG. It is installed along the direction. Then, as shown in FIG. 24, a motor 78 with a speed reducer is installed on a support base 77 rising from the base frame 71, and the pinion 79 is rotated by the motor 78 with a speed reducer. Since the pinion 79 meshes with the rack 76, the rotation of the pinion 79 causes the moving frame 73 to reciprocate in the width direction of the pallet P (direction of arrows a and b in FIG. 21).

As shown in FIGS. 21 to 22, the moving frame 73 is a rectangular box-shaped frame, and one end of the moving frame 73 vertically supports guide sprockets 81 and 82, and the other end vertically moves guide sprockets 83 and 84. A drive sprocket 86 rotated by a motor 85 with a speed reducer is arranged on the upper surface of the moving frame 73. A chain 87 is endlessly wound around each of these sprockets 81 to 86, and engaging pins 88 are attached to the chain 87 at two positions. The engagement pins 88 attached to the endless chain 87 engage with the engagement recesses 25 formed at the four corners of the pallet P to pull in the pallet P. Note that the transfer device described above is a pair of left and right one side as described above, and these are shown in FIG.
As shown by reference numeral 70, one pallet transfer means is arranged in the front portion 53 and the rear portion 54. Therefore,
The movable frame 73 projects laterally from the cart C in the lateral direction of the cart C or is pulled inward from the projecting position, and the movement of the endless chain 87 is added to transfer the actual vehicle pallet Pa. is there.

Next, the actual vehicle pallet retracting operation by the pallet transferring means will be described with reference to FIG. FIG.
(I) shows a state in which the moving frame 73 is located at a fixed position on the base frame 71 attached to the truck. The real vehicle pallet Pa is a transfer device in the lift room or in the car shelf.
It is located on the side of 70. From this state, as shown in (II) of the figure, the moving frame 73 is slightly moved to the actual vehicle pallet Pa side by the rack and pinion mechanism, the endless chain mechanism is circulated, and the engagement pin 88 is moved to the actual vehicle pallet Pa.
It is put into the engaging concave portion 25 of the above from above to be engaged. Then, as shown in (III) of the same figure, the movable frame 73 is retracted and the endless chain mechanism is circulated to allow the actual vehicle pallet Pa
When is pulled in, the transfer to the carriage C is completed.

FIG. 26 is a plan view of the lift E1 (E2), and FIG. 27 is a side view. Lift E1 (E2) has a horizontal base frame 91
Vertical frames 92, 93 are attached to both sides of the base frame 91. Guide rollers on the vertical frames 92 and 93
94 is attached so that it can move up and down along the lift guide rail 95. Any drive mechanism can be used for the lifting drive device. Then, the upper rail R1 and the lower rail R2 similar to those of the carriage C are attached to the base frame 91, and further, as shown in FIG. 28, a transfer mechanism 70A constituting a pallet transfer means is attached. This transfer mechanism 70A
Is the transfer device 70 of the dolly C, except for the rack and pinion mechanism, a fixed frame in which the moving frame 73 of the dolly is fixed is installed so as to extend in the lateral direction of the base frame 91, and the base is set in the fixed frame. It consists of an endless chain that circulates along the lateral direction of the frame 91 and an engagement pin attached to the endless chain to reduce the pallet transfer amount compared to the moving frame 73 in the truck (L1> L2), and to the lift side of the truck. This is a configuration in which a space L3 is provided from the tip of the moving frame 73 which is projected to the above. Further, as shown in FIGS. 26 to 27, an empty pallet feeding mechanism 90 in which two friction rollers 96 are axially mounted on a frame 91 and are rotationally driven by a motor 97 is provided.
Due to the pallet transfer means and the empty pallet feed mechanism 90 described above, the loading / unloading lift E1 (E2) and the loading / unloading room lifter F1 (F2) of the loading / unloading room 6 (7) and the trolley C are used as actual vehicles. The pallet Pa and the empty pallet Pe can be transferred to each other.

Next, another embodiment of the present invention will be described.
In the above-mentioned embodiment, the loading / unloading rooms 6 and 7 and the lifts E1 and E2 are provided respectively for the loading and unloading, but the present invention is also applied to a mechanical parking device using the loading / unloading room and the lift. Can be applied. Further, in the present invention, the pallet transfer means of the carriage C and the empty pallet feed mechanism 50 are not limited to the above examples, and any device can be adopted. However, it is preferable that the height of the carriage C does not increase. Further, the pallet transfer means and the empty pallet feed mechanism mounted on the lifts E1 and E2 are not limited to the above examples, and any mechanism can be adopted. Further, the lifting mechanism for the passenger compartment lifters F1 and F2 and the empty pallet lifters F3 and F4 and the pallet transfer mechanism are not limited to the above examples, and any mechanism can be adopted. Further, although the loading / unloading layer is provided as the uppermost layer, the loading / unloading layer may be provided as the lowermost layer or as the intermediate layer. Also,
In the above-mentioned embodiment, the transfer of the automobile is carried out by the lateral feeding, but it may be constituted by carrying out the longitudinal feeding.

[0034]

According to the present invention, as with the pallet-less type parking apparatus, the pallet-type parking apparatus has an excellent high-speed performance with a short loading / unloading cycle time, and more parking rooms can be installed in a parking lot. It is possible to provide a large-capacity multi-level parking device having a high space efficiency that can secure the space.

[Brief description of drawings]

FIG. 1 is a plan view of a storage layer of a parking device according to an embodiment of the present invention.

2 is a plan view (A) and a sectional view (B) of the parking device shown in FIG. 1. FIG.

FIG. 3 is an explanatory diagram showing a basic configuration of a parking device of the present invention.

FIG. 4 is an explanatory diagram of a warehousing operation.

FIG. 5 is an explanatory diagram of a warehousing operation.

FIG. 6 is an explanatory diagram of a shipping operation.

FIG. 7 is an explanatory diagram of a shipping operation.

FIG. 8 is an explanatory diagram of a continuous loading / unloading operation.

FIG. 9 is an explanatory diagram of a continuous loading / unloading operation.

FIG. 10 is an explanatory diagram of a parking space and its puzzle operation.

11 is a plan view of a parking rack H. FIG.

12 is a plan view (A) of the pallet P and a side view (B) of the storage shelf H. FIG.

FIG. 13 is a rear view showing a turning rail portion of the pallet P.

FIG. 14 is a side view showing a swing rail and a pallet support wheel.

FIG. 15 is an explanatory diagram showing the movement of the pallet P of the car rack H.

FIG. 16 is a plan view of the sidewalk Wa and the passenger compartment lifters F1 and F2 in the passenger compartments 6 and 7.

FIG. 17: Side view (A) of sidewalk Wa and passenger lifter
It is a side view (B) of F1 and F2.

FIG. 18 is a plan view (A) and a side view of empty pallet lifters F3 and F4.

FIG. 19 is a plan view (A) and a side view (B) of a dolly C.

20 is a front view of trolley C. FIG.

FIG. 21 is a plan view of a transfer device 70 of pallet transfer means.

FIG. 22 is a schematic side view of the transfer device 70 of the pallet transfer means.

23 is a view taken along line VII in FIG.

24 is a view taken along the line VIII in FIG.

FIG. 25 is an explanatory diagram of an actual vehicle pallet transfer operation.

FIG. 26 is a plan view of lifts E1 and E2.

FIG. 27 is a front view of lifts E1 and E2.

FIG. 28 is an explanatory diagram of a transfer device 70A of pallet transfer means.

[Explanation of symbols]

6 Entry / exit room 7 Entry / exit room E1 Entry / exit lift E2 Entry / exit lift F1 Entry / exit lifter F2 Entry / exit lifter F3 Empty pallet lifter F4 Empty pallet lifter C Cart R1 Upper rail R2 Lower rail P pallet H Car rack 50 Empty pallet feed Mechanism 70 Pallet transfer device 70A Pallet transfer device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shunichi Ogura 5-2 Sokai-cho, Niihama-shi, Ehime Sumitomo Heavy Industries Machinery Co., Ltd. Niihama Works (72) Inventor Shigeru Oshiba 5-2 Sokai-cho, Niihama-shi, Ehime Sumitomo Heavy Industries, Ltd. Niihama Works (72) Inventor Tetsuya Sonobe 3-4-23 Nittamachi, Niihama, Ehime Prefecture

Claims (9)

[Claims] 1. A loading / unloading room having a loading / unloading layer and a storage layer on a multi-story floor, and a loading / unloading room provided with a lifter for a loading / unloading room is provided in the loading / unloading layer. There is provided a parking space in which a plurality of carriage traveling lanes and a plurality of parking lanes in which a number of car shelves are arranged in a row along the carriage traveling lane are provided in parallel, and a loading / unloading lift room for lifting the loading / unloading lift is provided. A four-way transport mechanism for transporting a pallet on which an automobile is placed in a vertical direction and a horizontal direction, each of which is formed between the loading / unloading room for loading and unloading and is formed between all storage layers at a position adjacent to the loading / unloading room lifter. Alternatively, the vehicle is equipped with a two-way transport mechanism that transports a pallet on which an automobile is placed only in the lateral direction. In a parking lane adjacent to the trolley traveling lane of each of the storage layers, the trolley traveling lane is placed in the loading / unloading lift room. Face to face An empty pallet lifter is installed at the position, and both the loading / unloading lift and the trolley have upper and lower rails for loading the actual pallet and lower rails for loading the empty pallet, and the upper pallet is dispensed. And a pallet transfer means for pulling in and out, and an empty pallet feeding mechanism for paying out and pulling in empty pallets, both the passenger compartment lifter and the empty pallet lifter are provided with the loading / unloading lift and A pallet transfer mechanism that has an upper rail and a lower empty pallet receiving portion at the same level as the trolley, and that transfers pallets between the upper rail and the lower empty pallet receiving portion, and a pallet for loading and unloading and a trolley A pallet feed mechanism for paying out and pulling in Mechanical multilevel parking apparatus according to claim. 2. A trolley is provided with traveling drive devices at a front portion and a rear portion at both longitudinal ends of the base frame,
2. The mechanical multi-level parking apparatus according to claim 1, wherein an upper rail and a lower rail extending in the lateral direction of the trolley are attached to the front end and the rear end of the pallet mounting portion at the center in the longitudinal direction, respectively. . 3. A pallet transfer means of the trolley comprises a pair of transfer devices respectively installed at a front end and a rear end of a pallet mounting portion of the trolley, the transfer device comprising a base frame and the base frame. A moving frame that slides on a base frame in a lateral direction of the bogie between a position protruding laterally from the bogie and a retracted position, and an endless chain that circulates along the lateral direction of the bogie within the moving frame. 3. The mechanical multi-level parking apparatus according to claim 2, further comprising: an engaging pin attached to the endless chain and engaging with engaging recesses formed at four corners of the pallet. 4. The mechanical system according to claim 2, wherein the empty pallet feed mechanism of the truck comprises a roller axially supported by the base frame at the same level as the lower rail and a drive motor for the roller. Multi-level parking device. 5. The lift comprises a horizontal base frame and vertical frames attached to both ends of the base frame, and upper rails extending in the lateral direction of the base frame are provided at both ends in the longitudinal direction of the base frame. The mechanical multi-level parking apparatus according to claim 1, further comprising a lower rail attached thereto. 6. The pallet transfer means of the lift comprises a pair of transfer devices installed at both ends of a base frame, and the transfer devices are fixed to the base frame and extend in the lateral direction. From the frame, the endless chain that circulates in the fixed frame along the lateral direction of the base frame, and the engagement pins that are attached to the endless chain and that engage with the engagement recesses formed at the four corners of the pallet. The mechanical multi-level parking device according to claim 5, wherein: 7. The mechanical system according to claim 5, wherein the empty pallet feeding mechanism of the lift comprises a roller axially supported by the base frame at the same level as the lower rail, and a drive motor for the roller. Multi-level parking device. 8. The empty pallet lifter comprises a frame provided with a pallet feeding mechanism for laterally feeding a pallet, and an upper rail and a lower empty pallet receiving portion which are respectively provided outside both longitudinal end portions of the frame, The mechanical multi-level parking apparatus according to claim 1, further comprising an empty pallet transfer mechanism for transferring the empty pallet between the upper rail and the lower empty pallet receiving portion. 9. The empty pallet transfer mechanism comprises an elevating mechanism for the frame, and an advancing / retreating mechanism for advancing / retreating the upper rail between a fixed position and a retracted position retracted outside the fixed position. The mechanical multi-level parking device according to claim 8.