JPH03115668A - Horizontally circulating type parking device - Google Patents

Abstract

PURPOSE:To improve utilizing efficiency of space by disposing a lifting means in a position adjacent to a vertical carrying passage, and vertically moving a pallet situated on the vertical carrying passage to release the connection of a pallet to be lifted with the pallet situated on the vertical carrying passage. CONSTITUTION:In the circulating passage of an upper layer parking part 11, two empty spaces S are utilized to circulate a pallet 1. The pallet 1 in the intersecting position between a first transverse carrying passage 2 and a first vertical carrying passage 4 is vertically carried on the second transverse carrying passage 3 side to form an empty space in the intersecting position between the first transverse carrying passage 2 and the first vertical carrying passage 4. Then, a lifting table 32 is raised slightly upper than the circulating passage, and a target pallet 1 is brought up to release the connection of the target pallet 1 with the pallet 1 on the adjacent first transverse carrying passage 2. The remaining pallet 1 on the first transverse carrying passage 2 is transversely moved on the second vertical carrying passage 5 side to form an empty space S. Further, the lifting table 32 is turned and horizontally moved to fit an entrance hole 13a. Successively, the lifting table 32 is raised to carry a vehicle to an entrance part 13, and the vehicle is taken off from the pallet 1.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a horizontal circulation parking device.

(Prior art) As a parking device, a plurality of pallets on which vehicles are placed are connected to two horizontal transfer paths arranged in parallel with each other, and two horizontal transfer paths are connected to each other.
A horizontal circulation type in which books can be circulated on a rectangular circulation path constituted by a vertical book transport path is generally known (see Japanese Patent Publication No. 31023/1983). Regarding this type of parking device, some have a plurality of circulation paths arranged in layers, while others have only a single layer of circulation paths.

In such a parking device, the lateral transfer path is provided with a pair of parallel lateral transfer rails that support the pallet, and the pallet is transferred using the lateral transfer rails as a guide. In addition, in the vertical transfer path, two endless conveyor chains suspended from a pair of sprockets are provided on the left and right, and a vertical transfer means is provided in which a plurality of sets of two moving rails are supported by both conveyor chains. Usually, a pallet is placed on a set of moving rails and is transferred between the two lateral transfer paths by running a conveyor chain.

By the way, when the above-mentioned circulation path is arranged in an underground space of a building, a lifting means is required to raise and lower the pallet between the underground circulation path and the above-ground loading/unloading section.

On the other hand, in cases where the circulation path is only a single layer, as a lifting means when the lifting stroke of the pallet is short,
A pantograph-type lifting means is disposed below the intersection of the vertical transfer path and the horizontal transfer path, and the pallet is lifted and lowered by advancing the lifting platform upward from the gap in the center of the vertical transfer means in the vertical transfer path. There is a method. Furthermore, as a lifting means for the above-mentioned case where the lifting stroke is long, a method is known in which the four corners of the pallet are supported by chains and lifted and lowered.

On the other hand, when the circulation path has two or more layers, it is usual to arrange a lifting means outside the circulation path adjacent to the vertical transfer path or separated from one to several pallets.

(Issue 8 to be solved by the invention) In the case of a system in which the elevating means is provided at the position of the circulation path, such as the above-mentioned pantograph type or chain type, it is good in that there is no need to secure elevating and lowering space outside the circulation path. Normally, the width of the vertical transfer path in which these are arranged is narrow, and the space available for the vertical transfer means and the lifting means is narrow. Moreover, the pantograph type cannot handle cases where the lifting stroke is long, and the chain type requires a vertical transfer means to lift the four corners of the pallet, resulting in a complicated structure.

On the other hand, when the elevating means is provided outside the circulation path, the elevating means creates a lateral bulge in the rectangular circulation path, which tends to reduce the efficiency of space utilization within the building. Although it is possible to provide an auxiliary parking space next to the elevating means (see, for example, Japanese Utility Model Publication No. 14575/1983), the number of vehicles that can be parked will be reduced because parking cannot be done at the position of the elevating means.

That is, a first object of the present invention is to increase the efficiency of space utilization by providing the lifting means at the position of the circulation path without complicating the structure of the parking device.

The second problem is to solve the first problem in a multi-layer parking device.

The third problem is to make it possible to place a vehicle on a pallet in a forward posture when entering the warehouse, and to be able to take the vehicle off the pallet in the same forward posture as when leaving the warehouse in the same manner as when entering the warehouse.

The fourth problem is that even if the vertical positional relationship between the lifting position of the pallet in the circulation path and the loading/unloading section is misaligned,
The purpose is to allow pallets to be transported between the two.

(Means for Solving the Problems) The above-mentioned first problem can be solved by arranging the elevating means at the position of the horizontal transfer path and adjacent to the vertical transfer path.

That is, the specific means is as follows: A plurality of parallel horizontal transfer paths for laterally transferring pallets on which vehicles are placed; Equipped with a circulation path consisting of two vertical transfer paths for vertically transferring pallets between the transfer paths,
A plurality of pallets are arranged so that there are two empty spaces in which no pallets are present in this circulation path, and the two empty spaces are placed at diagonal positions of the circulation path to perform vertical and horizontal transfer of pallets. In the horizontal circulation type parking device that circulates a plurality of pallets in a fixed orientation, each of the pallets has a structure in which horizontally adjacent pallets are connected to each other in lateral transfer, and the relative position of the pallets is A coupler that allows separation due to vertical vertical transfer and transition to a connected state, and also allows separation due to the relative rise of one pallet and transition to the connected state due to the relative descent of this one pallet. A lifting platform is provided for raising and lowering the pallet between one of the horizontal transfer paths of the circulation path, which is adjacent to one of the vertical transfer paths, and the loading/unloading section provided above or below the horizontal transfer path. The invention is characterized in that it is equipped with a lifting means having:

Basically, the same measures as in the case of the first problem are taken to solve the second problem, and the specific method is to use multiple parallel rails to transport the pallets on which the vehicles are placed laterally. Each of the two vertical transfer paths intersects one end and the other end of each of the horizontal transfer paths and vertically transfers the knotlets between the horizontal transfer paths. It is equipped with a multi-layer circulation path in which horizontal transfer paths and vertical transfer paths are arranged in corresponding positions above and below, and two empty spaces where noklets do not exist are created in each circulation path. By arranging a plurality of pallets in each circulation path, and arranging the above two empty spaces at diagonal positions of the circulation path to perform vertical and horizontal transfer of the pallets, each pallet was oriented in a fixed direction. A multi-layer horizontal circulation parking device (in this case, each of the above pallets is horizontally adjacent to each other) connects the combs and throats by horizontal transfer, and In addition to allowing separation due to relative vertical movement and transition to a connected state, separation due to a relative rise of one comb/soto and transition to a connected state due to a relative descent of this one comb/soto. Each lateral transfer path is provided with a pair of parallel lateral transfer rails for guiding the lateral transfer of pallets, and each lateral transfer path corresponds to the top and bottom of each circulation path. Elevating means having an elevating platform for elevating the pallet between a position adjacent to each vertical transfer path on one side of the transfer path and an entry/exit section provided above or below the elevating means; A movable rail, which is formed separately from the horizontal transfer rail and guides the horizontal transfer of the pallet, is provided at the position where the pallet passes up and down.This movable rail is connected to the horizontal transfer rails before and after it. It is characterized in that it is provided movably between a support position where it supports the pallet being transferred laterally and a retracted position where it is separated from the front and rear lateral transfer rails and allows the pallet to pass. be.

The third problem is solved by providing the elevating means with a turning means for rotating the elevating platform.

The fourth problem is addressed by providing the elevating means with means for horizontally moving the elevating platform.

Specifically, the loading/unloading section is provided with a horizontal movement means in which a position vertically corresponding to the lifting position of the pallet in the circulation path is shifted, and the lifting means horizontally moves the lifting platform in response to the shift in the position. It is characterized by the fact that

(Function) In the means for solving the first problem, since the elevating means is disposed in the horizontal transfer path which is wider than the vertical transfer path,
In addition, since the lifting means is located adjacent to the vertical transfer path, pallets can be easily moved up and down between the horizontal transfer path and the loading and unloading section. It is what it is. That is, in order to transport the pallet, it is necessary to disconnect the pallet from the adjacent pallet using the coupler. In the case of this solution, the connection between the pallet to be lifted and lowered and the pallet located in the vertical transfer path is released by vertically transporting the pallet located in the vertical transfer path, and the connection between the pallet to be lifted and lowered and the adjacent horizontal transfer path is released. The connection with the pallet located thereon will be released either when the pallet to be raised or lowered is raised or lowered.

In the solution to the second problem, when the loading/unloading section is located above the parking section with a circulation path, lifting and lowering of pallets between the circulation path on the top layer and the loading/unloading section solves the first problem. The same is true for the means to solve the problem.

In addition, when lifting or lowering pallets between the circulation path on the lower layer and the above-mentioned upper loading/unloading section, the pallet should be moved to the pallet lifting position (the position next to the vertical transfer path in the horizontal transfer path) in the circulation path on the upper layer. It is necessary to create an empty space to allow the passage of. In contrast, from the state in which the pallet in the 5th horizontal transfer path is transferred horizontally to the vertical transfer path next to the pallet lifting position (therefore, there is empty space on the vertical transfer path on the opposite side), the pallet in the 5th vertical transfer path is By vertically transporting the pallets and laterally transporting the remaining pallets on the horizontal transport path in the opposite direction, the space above the pallet lifting position can be made vacant, and then,
The movable rail at this pallet raising/lowering position may be set to the retracted position.

On the other hand, if the loading and unloading section is located below the parking area with a circulation path, the first problem is when lifting and lowering pallets in the circulation path on the lowest floor, contrary to the case where the loading and unloading section is located above. The effect is similar to that of the solution, and when the pallet is raised and lowered in the lower circulation path, the movable rail in the upper circulation path is moved to the retracted position.

In the solution to the third problem, since the lifting means is provided with a turning means, when the vehicle is moved forward in the loading/unloading section and the loaded pallet is transferred from the lifting platform to the circulation path in the same position, When leaving the warehouse, if the pallet is slightly lifted from the circulation path by the lifting platform and rotated 180 degrees by the turning means, the vehicle can be unloaded from the pallet in a forward state at the loading/unloading section. Additionally, if the pallet is rotated 180 degrees and moved from the lifting platform to the circulation path when entering the warehouse, the vehicle can be unloaded from the pallet in forward motion by simply transporting the pallet to the loading/unloading section without turning the pallet when leaving the warehouse. .

In addition, the fact that the lifting means is provided with a turning means means that if the direction in which vehicles enter and exit the warehouse is different from the vertical transport direction of pallets in the circulation path, for example, the direction in which vehicles enter and exit the warehouse is This means that the pallet can be transported between the loading/unloading section and the circulation path by the lifting means even if the pallet is in the lateral transport direction.Even in this case, the turning direction and angle of the pallet must be controlled by the turning means. For example, the vehicle can be placed on a pallet while moving forward, and taken off the pallet while moving forward.

In the means for solving the fourth problem, since the elevating means is provided with a means for horizontally moving the elevating platform, the horizontal moving means By horizontally moving the lifting platform, the pallet can be aligned with the pallet lifting position in the circulation path or the pallet lifting position in the loading/unloading section.

(Effect of the invention) Therefore, according to the means for solving the first problem, the position of one horizontal transfer path of the circulation path and adjacent to one of the vertical transfer paths is used as the lifting/lowering position of the pallet by the lifting means. , it is possible to arrange the lifting means in the circulation path position without making it difficult to lift the pallet between the horizontal transfer path and the loading/unloading section, which reduces the complexity of the structure of the parking device. Parking space usage efficiency can be improved without having to

According to the means for solving the second problem, one horizontal transfer path of the circulation path adjacent to one vertical transfer path is set as the lifting/lowering position of the pallet by the lifting means, and the horizontal transfer at the position where the pallet passes Since the rails are movable, when the pallets are moved up and down by passing them up and down through other circulation paths,
An empty space that allows the passage of pallets can be created in the other circulation path, and even in a multi-level parking system, the efficiency of parking space utilization can be increased without complicating the structure of the parking system.

According to the means for solving the third problem, since the lifting means is provided with the turning means, the vehicle can be placed on the pallet in the forward state at the loading/unloading section and unloaded from the pallet in the forward state.
Vehicle loading and unloading operations become easier.

According to the means for solving the fourth problem, since the elevating means is provided with the horizontal moving means, even if the elevating position of the pallet in the circulation path and the positional relationship with the loading/unloading section do not correspond vertically and deviate, the pallet can be moved. It can be moved up and down between the circulation path and the loading/unloading section.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a schematic plan view of the parking device of this embodiment. The parking device includes first and second lateral transfer paths 2.3 arranged in parallel for laterally transferring a pallet 1 on which a vehicle is placed, and one end and the other end of each of the lateral transfer paths 2,3. A rectangular circulation path is provided, which is constituted by first and second vertical transfer paths 4 and 5 that intersect with each other and transport the pallet 1 in the vertical direction. and,
Each of the horizontal transfer paths 2 and 3 is provided with a horizontal transfer means for horizontally transferring the pallet 1, and each vertical transfer path 4.5 is provided with a vertical transfer device for vertically transferring the pallet 1.

A plurality of pallets 1 are arranged in the circulation path so as to form two empty spaces S, S in which no pallet l is present. By arranging the two empty spaces S and S at diagonal positions of the circulation path and performing vertical and horizontal transfer of the pallet 1, each pallet is circulated in a fixed orientation. There is. That is, the pallet 1 is simultaneously transferred horizontally by each horizontal transfer means toward the two empty spaces S, S at the diagonal positions, and then vertically transferred toward the empty spaces S, S at the other diagonal position. By repeating the operation of vertically transporting the pallets 1 at the same time using the transport means, the pallets 1 can be circulated.

Therefore, the parking device moves the pallet 1 up and down between the position of the first horizontal transfer path 2 and adjacent to the first vertical transfer path 4 and the loading/unloading section provided above the position. Elevating means 8 is provided.

Hereinafter, the parking device will be explained in detail with reference to FIGS. 2 and 3.

First, this parking device is of a two-layer type having an upper parking section 11 and a lower parking section 12 each having the above-mentioned circulation path. The transport path and the vertical transfer path are arranged in a vertically corresponding positional relationship.

Then, above the position of the first horizontal transfer path 2 in the circulation path and adjacent to the first vertical transfer path 4 (hereinafter referred to as the pallet lifting position), the first vertical transfer path 4 is placed above the lifting position of the pallet. Warehouse entry/exit section 1 with entrance/exit port 13a opened on the floor with deviation
3 is provided.

Upper and lower parking areas 11. ．． The configurations of the 12 circulation paths are basically the same.

In addition, the pallet] has connectors 15a and 15 that connect horizontally adjacent pallets on both sides in lateral transfer.
b, and wheels 16 at the four corners on the bottom surface.
and a longitudinally extending groove member 1 for lateral transfer of the pallet 1.
7 is provided. The connector 15a is U-shaped with an upward opening, and the connector 15b is an inverted U-shaped connector with a downward opening that engages with the upward U-shaped connector 15B. That is, this two-speed union 15a,
15b allows the relative vertical movement of the pallet 1.1 to allow separation and transition to the connected state, and also allows for the relative rise of one pallet 1 and the relative separation of this one pallet. They are connected to each other so as to allow transition to the connected state by lowering.

The lateral transfer paths 2 and 3 of the circulation path are provided with a pair of parallel lateral transfer rails 18 and 8 that support the pallet 1 on its wheels 16 and guide its lateral transfer. The lateral transfer rail 18 of the first lateral transfer path 2 is
Fixed rail 18a.

18b and a movable rail 1.8c.

That is, the fixed rail 18a is on the lateral transfer means 6 side of the lateral transfer path 2, and the fixed rail 1.8b is on the side of the lateral transfer path 2 and the first lateral transfer path 2.
Movable rails 18c are provided at the positions where they intersect with the vertical transfer path 4 and at pallet lifting and lowering positions. This movable rail 18c is supported by a vertical bin on one rail support member provided on the center side of the lateral transfer path 2 relative to the pallet lifting position, and is connected to the fixed rails 18a and 18b for lateral transfer. It is rotatable between a horizontal transfer position where the pallet 1 is supported and a retracted position where the pallet 1 is moved away from the fixed rails 18a and 18b and retracted to the side of the horizontal transfer means 6, allowing the pallet 1 to pass as it goes up and down. . In addition, the first lateral transfer path 2
A rail receiver 20 for receiving the tip of the movable rail 18c is provided at the end of the fixed rail 1.8b provided at the intersection with the first vertical transfer path 4 on the pallet lifting position side.

This rail receiver 20 is provided to prevent the movable rail 1.8c from becoming cantilevered in the supporting position.

Further, the lateral transfer means 6 for the pallet 1 includes a crank arm 22 that is rotated around a vertical axis by a drive means 21,
The rollers provided at both ends of the crank arm 22 are engaged with the groove members 17 on the lower surface of the pallet 1, and the crank arm 22
The rotation of the pallet 1 causes the pallet 1 to move laterally. On the other hand, the vertical transport means 7 is composed of a large number of drive rollers 23 that support the pallet 1 and transport it vertically. That is, in the vertical transfer path 4 (same as in the vertical transfer path 5),
Two roller support members 24° 24 extending in the vertical direction are provided, and each roller support member 24 supports the drive roller 2.
3 is supported by a horizontal horizontal axis of rotation. A rotational drive means (not shown) is connected to each rotating shaft.

The elevating means 8 is provided with an elevating table 32 that supports the pallet 1 and moves up and down using guide poles 31 extending in the vertical direction of both outer cans of the movable rails 18c, 18c as guides.

That is, the elevating body 33 is attached to the guide poles 31, 31.
．． 33 is provided to be able to rise and fall freely with rollers, and this elevating body 3
3.33, a horizontal moving means is supported for horizontally moving the lifting platform 32 in response to a shift in the positional relationship between the pallet lifting position and the loading/unloading section. This horizontal movement means is supported by a horizontal guide rail 36.36 which is supported by the elevating body 3-3° 33 via a bracket 35 and extends laterally, and is supported by rollers on this horizontal guide rail 36.36 so as to be horizontally movable. It consists of a horizontal moving body 37. Then,
A turning means 38 for turning the lifting table 32 around a vertical axis is supported on the horizontal moving body 37, and the lifting table 32 is supported on the turning means 38.

A chain-type drive means (not shown) is used for raising and lowering and horizontally moving the lifting platform 32. That is, the elevating body 33 is connected to an endless chain that is suspended by a pair of sprockets disposed at intervals in the vertical direction and travels by the operation of a drive motor, and the horizontal moving body 37 is connected to a pair of sprockets disposed at intervals in the vertical direction. It is connected to an endless chain that is suspended around a pair of disposed sprockets and runs by the operation of a drive motor.

Next, the operation of the parking device will be explained.

- Taking out a vehicle from the upper parking section 11 - Now, the elevating means 8 enters the upper parking section 1] without turning the vehicle placed in the forward state on the pallet 1 in the loading/unloading section 13, and lifts the elevator platform 32. It is planned to be arranged between the upper parking section 11 and the lower parking section 12.

■ In the circulation path of the upper parking section 11, by circulating the pallet 1 using the two empty spaces S, S, the intersection position of the first horizontal transfer path 2 and the second vertical transfer path 5 and the There are two empty spaces S at the intersection of the second horizontal transfer path 3 and the first vertical transfer path 4.

S is placed (the state shown in FIG. 1), and the target pallet 1 to be carried out is placed at the pallet lifting position.

■ The pallet 1 at the intersection of the first horizontal transfer path 2 and the first vertical transfer path 4 is vertically transferred to the second horizontal transfer path 3 side, and the pallet 1 is transferred vertically to the intersection of the first horizontal transfer path 2 and the first vertical transfer path 4. Form an empty space at the position.

■ By raising the lifting platform 32 slightly above the circulation path, the target pallet 1 at the pallet lifting position is lifted, and the connection between this target pallet 1 and the pallet 1 on the first lateral transfer path 2 next to it is made. unlock.

(1) The remaining pallets 1 in the first horizontal transfer path 2 are transferred laterally to the second vertical transfer path 5 side, and an empty space S is also formed on the opposite side of the previously formed empty space S. In other words, there is empty space S on both sides of the pallet lifting position.

It becomes S.

■ Turn the elevator platform 32 180 degrees to change the direction of the vehicle.

- Move the lifting platform 32 horizontally to match the position of the target pallet 1 to the loading/unloading port 13a.

(2) Move the movable rails 18c, 18c from the support position to the retreat position.

- The elevator platform 32 is raised to transport the vehicle to the storage/unloading section 13, and the vehicle is unloaded from the pallet l in a forward state.

Exiting a vehicle from the lower parking section 12 - It is now assumed that the elevating platform 32 is disposed between the ascending parking section 11 and the lower parking section 12.

(A) In the upper parking area 11, the pallet 1 is brought into the state shown in FIG. While vertically transferring the pallets to the side to form an empty space at the intersection of the first horizontal transfer path 2 and the first vertical transfer path 4, the remaining pallets l-1 of the first horizontal transfer path 2 are transferred to the second vertical transfer path. The pallet is laterally transferred to the road 5 side, and an empty space S is formed at the pallet lifting position.

(B) In the circulation path of the lower parking area 12, pallets 1
By circulating and moving the pallet 1, the target pallet 1 to be carried out is placed in the pallet raising and lowering position in the state shown in FIG. Empty spaces S and S are formed at the intersection of the first vertical transfer path 4 and the pallet lifting position, respectively.

(C) The movable rails 18C and 18C of both the upper and lower parking sections 11.12 are moved from the support position to the retreat position.

(D) The elevator platform 32 is lowered and placed below the circulation path of the lower parking section 12.

(E) Return the movable rails 18c, 1.8c of the lower parking section 12 from the retracted position to the support position.

(F) The pallet 1 in the first horizontal transfer path 2 of the lower parking area 12 is laterally transferred by one pallet to the first vertical transfer path 4 side, and the target pallet 1 is placed at the pallet lifting position.

(G) Upper Parking Section] Carry out operations ① to ② in the case of leaving the parking lot from 1.

(H) Move the movable rails 18c, 18c of the lower parking section 12 from the support position to the retreat position.

(1) The target pallet 1 is moved to the upper parking area 1 using the lifting platform 32.
Let it rise slightly above 1.

(J) Move the lifting table 32 horizontally to match the position of the target pallet 1 to the entrance 13a.

(K) The elevator platform 32 is raised to transport the vehicle to the warehouse loading/unloading section 13, and the vehicle is unloaded from the pallet 1.

- Entering a vehicle into the upper parking section 11 - The empty pallet 1 is transported from the upper parking section 11 to the entry/exit section 13 in the same manner as the vehicle exit described above. Then, the vehicle is moved forward and placed on the empty pallet 1 in the loading/unloading section 13, and this pallet 1 is lowered, so that the pallet 1 is adjusted to the pallet raised position between the upper parking section 11 and the loading/unloading section 13. The lifting platform 32 is moved horizontally. Then, the bracket 35 of the elevating body 33 is located below the horizontal transfer rail 18, and the pallet 1 is positioned below the horizontal transfer rail 18.
The elevator platform 32 is lowered so that it is located higher than the robot. Next, by moving the movable rail 18C118c from the retreat position to the support position and lowering the lifting platform, the pallet 1 carrying the vehicle is moved to the movable rail 18c,
Lower it onto 18c.

Entering a vehicle into the lower parking section 12 - The empty pallet 1 is transported from the lower parking section 12 to the entry/exit section 13 in the same manner as the vehicle exit described above. Then, in the same manner as when entering the upper parking section 11, the parking section 13
From there, the pallet 1 carrying the vehicle is lowered onto the movable rails 18c, 18c of the lower parking section 12. In this case, the movable rails 18c, 18c of the upper parking section 11 are returned from the retracted position to the support position after the pallet 1 has passed downward.

FIG. 4 shows another embodiment of the movable rail.

That is, this movable rail 18d is connected to the movable support member 40.
It can be moved between a position where it is connected to the fixed rails 18a and 18b and a retracted position on the side of the fixed rail 18a on the lateral transfer means side. In this case, the movable support member 40 extends laterally, one end is movably supported by the side surface of the fixed rail 18a on the side of the lateral transfer means, and the other end is coupled to the side surface of the movable rail 18d. and,
A pair of sprockets 41, 4.1 are provided on the sides of the fixed rail 18a at intervals in the lateral direction,
The movable support member 40 is connected to an endless chain 42 suspended from this sprocket 41, 41,
As the chain 42 runs, the movable rail 18d moves between the support position and the retracted position.

Note that although a roller conveyor is used as the vertical transfer means in the above embodiment, the present invention is not limited to this. A plurality of horizontally extending rails are fixed to a conventional endless conveyor chain, and these rails are connected to the horizontal transfer rail by the running of the chain. It may be something that can be connected. In this case, the rail receiver 20 for receiving the movable rail may be fixed to the support member of the vertical transfer means.

Further, although the above embodiment relates to a two-layer parking device, the present invention can also be applied to a single-layer parking device or a parking device having three or more layers of circulation paths, and it is also possible to apply the present invention to a parking device having three or more layers of circulation paths. It goes without saying that the present invention can also be applied to cases where a lateral transfer path is provided or where the loading/unloading section is located below the circulation path.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic plan view of a horizontal circulation parking device, FIG. 2 is a partially sectional side view of the same parking device, and FIG. The omitted plan view and FIG. 4 are plan views showing other embodiments of the movable rail. 1... Pallet 2.3... Horizontal transfer path 4.5... Vertical transfer path 6... Horizontal transfer means 7... Vertical Transfer means 8...Elevating means 11...Upper parking section 12...Lower parking section 13...Enter/exit section 1.5a, 15b... ...Coupler 18a, 18b...Fixed rail 18C1 18d...Movable rail 32...Elevating platform 36...Horizontal guide rail 37...・Horizontal moving body 38... Rotating means and others 26 1 ・-Pallet 2.3 ・Horizontal transfer path 4.5...@X transfer path 6...Horizontal transfer means 7 Vertical transfer means 8 Lifting means ]1 ・Upper parking section 12...Lower parking section 13...Enter/exit section S'' 4/

Claims (4)

[Claims] (1) A plurality of parallel horizontal transfer paths for laterally transferring pallets on which vehicles are placed, and a plurality of horizontal transfer paths that intersect one end and the other end of each of the horizontal transfer paths, and pallets are transported between the horizontal transfer paths. A circulation path configured with two vertical transfer paths for vertical transfer is provided, and a plurality of pallets are arranged so that there are two empty spaces in which no pallets are present, and the above-mentioned 2.
In a horizontal circulation parking system, a plurality of pallets are circulated by arranging two empty spaces at diagonal positions of a circulation path and transferring the pallets vertically and horizontally. It connects pallets that are adjacent to each other in a horizontal direction, and allows the pallets to be separated by relative vertical movement and transition to a connected state, and also allows separation due to the relative rise of one pallet and the separation of this one pallet. A connector is provided that allows transition to the connected state by relative lowering of 1. A horizontal circulation type parking device, comprising a lifting means having a lifting platform for raising and lowering a pallet between the loading and unloading section provided in the storage area. (2) A plurality of parallel lateral transfer paths for laterally transferring pallets on which vehicles are placed, and a plurality of lateral transfer paths that intersect one end and the other end of each of the lateral transfer paths and transport pallets between the lateral transfer paths. each consisting of two vertical transfer paths that transfer in the vertical direction,
It is equipped with a multi-layer circulation path in which horizontal transfer paths and vertical transfer paths are arranged in corresponding positions vertically, and a plurality of pallets are arranged in each circulation path so that there are two empty spaces where no pallets are present. By arranging the two empty spaces in each circulation path at diagonal positions of the circulation path and performing vertical and horizontal transfer of the pallets, each pallet is circulated in a fixed orientation. In the multi-layer horizontal circulation parking system, each of the above pallets has a structure in which horizontally adjacent pallets are connected to each other by horizontal transfer, and the pallets are separated and moved to a connected state by relative vertical transfer. A coupler is provided in each lateral transfer path to allow separation due to the relative rise of one pallet and transition to a connected state due to the relative fall of the other pallet. A pair of horizontal transfer rails extending in parallel to guide the transfer are provided, one for each horizontal transfer path corresponding to the upper and lower sides of each circulation path, one adjacent to each vertical transfer path, and one above or above the vertical transfer path. Equipped with an elevating means having an elevating platform for elevating the pallet to and from the loading and unloading section provided below, and at a position where the pallet passes up and down by raising and lowering the elevating platform, a separate rail from the horizontal transfer rail is provided. A movable rail is provided to guide the horizontal transfer of the pallet. 1. A horizontal circulation parking device, characterized in that the horizontal circulation parking device is movable between a retracted position that allows the pallet to pass therebetween and a retracted position that allows the pallet to pass therethrough. (3) The horizontal circulation parking device according to claim 1 or 2, wherein the elevating means includes a turning means for turning the elevating platform. (4) The loading/unloading section is offset from a position vertically corresponding to the lifting position of the pallet in the circulation path, and the lifting means is provided with a horizontal movement means for horizontally moving the lifting platform in response to the deviation in the position. The horizontal circulation parking device according to claim (1) or (2).