JPH0796855B2 - Statka crane multi-level parking lot - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a multi-storey parking lot using a stacker crane as a transportation means.

In the present invention, the entry / exit port refers to the entry or exit port. The transfer port is a port for a stacker crane in a rack group including a large number of shelves to transfer a vehicle to and from the loading / unloading port.

[Conventional technology]

An example of a three-dimensional parking lot using a stacker crane is disclosed in Japanese Patent Laid-Open No. 51-141178. This one is
A large number of shelves are provided along the traveling path of the stacker crane, and a storage entrance and a depalletizer are provided at one end, and a storage exit and a palletizer are provided at the other end.

For warehousing, one pallet is supplied from the depalletizer to the warehousing port by the conveyor, and the vehicle is placed on this pallet. This on-vehicle pallet is supplied to the transfer port of the stacker crane by the roller conveyor. The stacker crane supplies this on-board pallet to the shelves.

When an issue command is issued, the in-vehicle pallet is transported to the transfer port by the stacker crane and then delivered to the output port by the roller conveyor. The pallet remaining in the delivery port is supplied to the palletizer by a conveyor.

[Problems to be solved by the invention]

As described above, a depalletizer is required for warehousing and a palletizer for warehousing, and each parking shelf is dedicated. Therefore, the number of parking lots is reduced.

An object of the present invention is to provide a parking lot with a large number of parking spaces for the same site area.

[Means for solving problems]

According to the present invention, a storage unit for stacking pallets is provided in an upper portion of a passage through which a vehicle for loading and unloading passes, and a trolley that travels between an upper portion of the storage unit and an upper portion of a storage port is provided. The picker for attaching and detaching the pallet is suspended from the trolley so as to be able to move up and down.

[Action]

The trolley travels between the storage unit and the loading / unloading port, moves the picker up and down, and conveys the pallet between the storage unit and the loading / unloading port. Since the storage section is located at the upper part of the passage through which the vehicle passes, the lower section of the storage section can be used as a vehicle storage waiting area.
Therefore, the number of parking lots can be increased as a whole.

〔Example〕

The present invention will be described below with reference to an embodiment shown in FIGS.

In FIG. 2, 1 is a known stacker crane,
The vehicle runs on the road 4 between the shelves 5 and 6 on both sides. The stacker crane 1 is provided with a lifting platform, and the lifting platform is equipped with forks protruding to the storage shelves on both sides. The shelf group 5 and 6 is composed of a large number of storage shelves.

An entrance 10 is provided at one end of the shelf group 5, and an exit 11 is provided at the other end. The entrance 10 and the exit 11 are on the traveling path 4.
It is on the outer edge side of the edge.

The end of the road 4 is surrounded by a fence 15. Inlet 10, Outlet
Reference numeral 11 designates a platform for raising and lowering an occupant on the left and right of the pallet of the part, and enclosing it with a fence 16 and the like to form a room. 17 is a passenger door, and 18 is a vehicle gate that moves up and down. 20 is a roadway.

In FIG. 1, the first-stage storage shelves on the second and third rows of the shelving group 5 have transfer ports 22 and 23 for warehousing. Similarly, the first-stage storage shelves on the fourth and fifth lines are the transfer ports 24 and 25 of the delivery port.

The number of rows is counted from the end of the shelf group on the side of the entrance 10. The number of steps is counted from the bottom. Here, a shelf group having 6 rows and 5 stages is shown.

Conveyors 27a, 27b, 27c, and 27d for warehousing that convey a pallet 30 on which a vehicle is placed are provided from the warehousing port 10 to the transfer port 23. Pallet 30 with vehicles from transfer port 24 to exit port 11
Conveyors 28a, 28b, 28c, 28d for delivering goods are provided. The conveyors 27a to 27d and 28a to 28d can be operated independently. The conveyors 27c, 27d, 28a, 28b are configured to transfer pallets to and from the forks of the stacker crane 1. The heights of the conveyors 27a to 27d and 28a to 28d are the heights at which the road surface and the roadway 20 are substantially aligned when the pallet 30 is placed.

In FIG. 1, reference numeral 40 is a depalletizer for supplying the pallet of the storage section 41 to the storage port 10. The storage section 41 is located above the first row and the first row of the shelf group 5. The storage section 41 has a pallet seat 42 for supporting the stacked pallets. The mounting position of the pallet seat 42 is at the upper part of the first stage pillar so that the vehicle-mounted pallet 30 can pass by the conveyor 27b.
The height of the first stage is sufficiently larger than the height of the second stage.
The pallet seats 42 are provided at the front and rear ends of the first row.

In order to illustrate the components of the depalletizer 40, the first
The figure is larger than it actually is.

The depalletizer 40 mainly includes a storage unit 41, a picker 43 for holding the uppermost pallet of the storage unit 41, a trolley 44 that moves while moving the picker 43 up and down, and a girder 45 on which the trolley 44 travels. The girder 45 is supported by the column group 46 of the shelf group 5 and the entrance 10. The trolley 44 travels between the storage unit 41 and the entrance 10. Picker 43 is storage
It is moved up and down between the upper part of 41 and the entrance 10 conveyor 27a.

40a is a palletizer that collects the pallet remaining in the delivery port 11 into the storage section 41a. The storage section 41a is located above the first row of the sixth row of the shelf group 5. The storage section 41a has a pallet seat 42a for supporting the stacked pallets. The mounting position of the pallet seat 42a is determined by the conveyor 28c.
It is the top of the first column so that 30 can pass through. The pallet seats 42a are provided at the front and rear ends of the sixth row.

The configuration of the palletizer 40a is substantially the same as the configuration of the depalletizer 40. However, the functions are different. For example, the picker 43 of the depalletizer 40 grabs the uppermost pallet of the storage section 41 and supplies it to the entrance 10 while the picker 43a of the palletizer 40a grabs the pallet of the exit 11 to store 41a. Is to be supplied to.
Therefore, the depalletizer 40 will be mainly described below.
The palletizer 40a is indicated by adding "a" to the number of the depalletizer 40.

Details of the depalletizer 40 will be described with reference to FIGS. FIG. 7 shows a state in which the pallet is supported.

The trolley 44 is mounted on the girder 45 with two wheels 50 provided at each of four points on the front, rear, left and right. The girder 45 consists of two I-shaped steels. A motor 51 for traveling is attached to two wheels 50 located on a diagonal line. A frame 55 is suspended from a wheel 50 via a seat 54. On the top of the frame 55,
A hoisting device consisting of 56, speed reducer 57 and drum 58 is installed. Four ropes 60 are struck from the drum 58 to the front, rear, left and right, and picked via the sheave 61 provided on the frame 55.
43 is hanging. When the drum 58 is rotated forward, 4 ropes
60 is paid out.

Pipes 63 having enlarged bottom ends are attached to four points on the lower, front, left and right sides of the frame 55. Meanwhile, the frame of the picker 43
On the upper surface of 65, four rods 66 having small diameter tips are erected.
When the picker 43 rises, the rod 66 enters the pipe 63.

Pallet seats 67 that support the pallet 30 are suspended horizontally at four points on the front, rear, left, and right of the rectangular frame 65 of the picker 43. Reference numeral 68 denotes its rotation shaft, which penetrates the guide cylinder 69 and the frame 65 and projects upward. The rotating shaft 68 is suspended. The tube 69 is fixed to the frame 65. A lever 70 is attached to the upper end of the rotary shaft 68. The levers 70, 70 of the two rotary shafts 68, 68 on both sides in the width direction of the frame 65 are connected by links 71, 71. This link
Cylinder devices 73 and 73 for driving are attached in parallel to 71 and 71, respectively. The rod of the cylinder device 73 is attached to one end of a horizontally rotatable link 74. The other end of the link 74 is connected to the link 71. A central pin 75 of the link 74 is provided on the frame 65. FIG. 6 shows a state in which the pallet seat 67 is retracted. When the rod of the cylinder device 73 is projected, the pallet seat 67 projects.

In FIG. 7, the cylinders 69, 6 at one end in the length direction of the picker 43
A pair of photoelectric switches 78 for detecting the presence / absence of the pallet 30 are installed on the side surface of 9. When the switch 78 detects the light blocking due to the lowering of the frame 65, the lowering of the frame 65 is stopped and the pallet seat 67 projects toward the pallet 30. Explaining the mounting positions of the switch 78 and the pallet seat 67, when the switch 78 detects light blocking,
A pallet seat 67 is provided between the uppermost pallet 30 of the stacking pallet and the pallet 30 of the second uppermost pallet so that the pallet seat 67 can be projected in the gap 80. As a result, the top pallet 30 of the stacking pallet and the pallet of the exit port 11
You can lift 30.

The switch 78 and the rotary shaft 68 are provided outside the end of the pallet 30 in the width direction.

A reinforcing plate 30a is provided on the back surface of the pallet 30 so as to contact the pallet 30 below. As a result, the gap 80 is obtained.

A limit switch 82 for detecting the presence or absence of the pallet 30 is installed on the pallet seat 67. Limit switch
The lever 83 of 82 protrudes from the lower side of the pallet seat 67 through the opening 84 to the upper surface and extends horizontally. This limit switch is attached to two pallet seats 67 located diagonally.

When the picker 43 on which the pallet 30 is placed is lowered and the limit switch 82 detects that the pallet 30 is OFF, it means that the pallet 30 at the top of the loading port 10 or the stacking pallet has been landed. This stops the picker 43 from descending, and the pallet catch 67
Retreat.

The power supply for driving the trolley 44 and the like are performed by a known means such as a trolley wire provided in parallel with the girder 45.

In FIG. 3, the platform of the entrance 10 and the exit 11 is provided with a recess 87 into which the pallet seat 67 of the picker 43, the rotary shaft 68, etc. can be inserted. by this,
The pallet 30 can be supplied and collected.

The warehousing operation will be described.

A stacking pallet is stored in the storage section 41 of the depalletizer 40. The trolley 44 stops on the first row, and the picker 43 is lowered using the hoisting device. When the photoelectric switch 78 detects light blocking, the picker 43 is stopped from descending, and the cylinder device 73 is used to cause the pallet seat 67 to project into the gap 80. Next, if the picker 43 is raised, one pallet 30 can be lifted. With the rod 66 in the pipe 63,
The motor 51 is used to drive the vehicle toward the entrance 10.

When the trolley 44 arrives at the entrance 10, the picker 43 is lowered. The pallet of the picker 43 is the conveyor 27a of the storage port 10.
Then, since the pallet 30 floats from the pallet seat 67 of the picker 43, the limit switch 82 is turned off. This OFF
Stops the picker 43 from descending and receives the pallet
Move back 67. Next, the picker 43 is raised, and after the rise is completed, the picker 43 is returned to the first row. Let the picker 43 stand by with the pallet lifted.

The occupant who has placed the vehicle on the pallet 30 of the storage entrance 10 dismounts and then issues a storage command. Conveyor 27 when receiving goods
a to 27d are activated to convey the vehicle-mounted pallet to the position of the conveyor without the vehicle-mounted pallet 30.

The on-vehicle pallets at the transfer ports 22 and 23 are transferred to the storage shelves by the stacker crane 1.

The delivery will be described.

When there is an instruction to issue the stacker, the stacker crane 1 discharges the in-vehicle pallet from the storage shelf to the transfer ports 24 and 25. If there is no on-vehicle pallet at the transfer ports 24 and 25, the goods are delivered to the transfer port 25. The on-vehicle pallet 30 is conveyed to the delivery port 11 by the conveyors 28a to 28d.

When the vehicle exits from the exit port 11 and there is a command, the palletizer 40a starts the pallet collecting operation. Since this uses the depalletizer 40 as a palletizer, it will be briefly described. In the following description, the depalletizer
An explanation will be given by adding "a" to the 40 part number.

At the exit port 11, the picker 43a is lowered. When the switch 78a detects the light blocking, the picker 43a is stopped from descending and the pallet seat 67a is projected. Next, the picker 43a is raised, and the rod 66a is run toward the sixth row with the rod 66a in the pipe 63a. When it reaches the sixth line, the picker 43a is lowered. When the limit switch 82a of the pallet seat 67a detects OFF, the pallet seat 67a
Since the pallet 30 has been placed on the pallet 30 of the storage section 41a, the picker 43a is stopped from descending and the pallet seat 67a is descended. Next, the picker 43a is raised and made to stand by.

When a predetermined number (for example, 6) of pallets are stored in the storage section 41a, the stacker crane 1 conveys the pallets to an empty storage rack. When the pallet disappears from the storage part 41 of the depalletizer 40,
The stacker crane 1 supplies stacked pallets from the storage shelf or the storage section 41a.

As described above, the depalletizer (palletizer) 40 (40
The vehicle-mounted pallet 30 passes below a). The waiting area of the in-vehicle pallet 30 waiting for warehousing (waiting for warehousing) is set here. It can also be used as a transfer port for a stacker crane. For this reason, one shelf with a depalletizer (palletizer) installed can be used for two purposes, which can substantially increase the number of parked cars and shorten the time required for loading and unloading per car. It is possible.

The height of the first shelf with the depalletizer (palletizer) installed is higher than the height of the other shelves, but the height of the stacked pallets is low, so it is not too high.
Therefore, if the installation areas of the entire parking lots are the same, the number of parking spaces can be increased to the extent that the height is slightly higher.

Since the storage section 41 (41a) is not provided above the entrance 10 (the exit 11), it is safe.

Since a plurality of transfer ports 22 and 23 (24, 25) are provided, the loading / unloading time can be shortened.

It should be noted that although the transfer ports 22 and 23 for receiving and the transfer ports 24 and 25 for outputting are divided, an in-vehicle pallet for receiving may be placed at the transfer ports 24 and 25 when only receiving is performed. it can. Further, when only carrying out the shipping, a vehicle-mounted pallet for shipping can be placed at the transfer ports 22 and 23.

It should be noted that it is also possible to enter and exit from the entrance. Therefore, in the present invention, the entry / exit port refers to the entry or exit port, and the pallet magazine refers to the depalletizer or palletizer.

When the exit port 11 is bright and the switch 78a cannot be used, a limit switch may be provided below the platform of the exit port 11 to make the switch 78a unnecessary.

The configuration of the pallet seats 67, 67a of the pickers 43, 43a may be any configuration as long as the pallet can be attached and detached. For example, if the top surface of the pallet has holes, a twist lock pin that fits into the holes can be used, such as a spreader on a container crane.

Since the entrance 10 and the exit 11 are on the first stage of the shelf group 5, the transfer port is also on the first stage. For example, when the storage entrance is on the third stage, the transfer port is on the third stage, and the traveling path of the truck is also provided in the vicinity thereof.

Although the storage section 41 is provided in the first stage, if it is provided in the second stage, the height of the first stage can be lowered.

The embodiment shown in FIGS. 10 and 11 will be described. First of shelf group 5
The step is a passage 120 for vehicles and people. A pallet magazine 140 that functions as a depalletizer and a palletizer is provided above the passage 120 in the second row, and a delivery port 110 is provided in the passage 120 in the fourth row. Pallet magazine 140
Below is a storage waiting area. The trolley of the pallet magazine 140 runs along the girder 145 between the second row and the fourth row. To the right of the entrance 100 and exit 110 is a platform and door 170 for getting on and off. On the left side is a door (not shown) that opens only when the on-vehicle pallet is transferred to and from the stacker crane 1. This door opens in the traveling direction of the stacker crane 1. Above the aisle 120 is a ceiling 99 for safety.

〔The invention's effect〕

According to the present invention, since the lower part of the palletizer can be set as the storage or waiting area, it is possible to increase the number of parking spaces by slightly increasing the height in the same site.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a stacker crane type multi-level parking lot according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG.
FIG. 4 is a plan view of the storage entrance of FIG. 1, FIG. 4 is a side view of the depalletizer of one embodiment of the present invention, FIG. 5 is a plan view of FIG. 4, and FIG. 6 is B- of FIG. B sectional view, FIG. 7 is a right side view of FIG. 4, FIG. 8 is a vertical sectional view of the pallet seat of FIG. 4,
FIG. 9 is a plan view of FIG. FIG. 10 is a plan view of the first stage of a multi-story car park according to another embodiment of the present invention, and FIG. 11 is a sectional view taken along line CC of FIG. 1 ... Stacker crane, 5,6 ... Shelves, 10,100 ... Inlet, 11,110 ... Outlet, 20,120 ... Aisle, 40 ... Depalletizer, 40a ... Palletizer, 41 ... Storage section, 43
...... Picker, 44 …… Trolly, 45 …… Garda

Claims (1)

[Claims] 1. A shelf group having a large number of storage shelves, a stacker crane that travels along the shelves and transfers in-vehicle pallets to and from the storage shelves, and a loading / unloading port provided at a position connected to a roadway. And a transfer port provided at a position where an in-vehicle pallet can be transferred between the stacker crane and the stacker crane, the transfer port being connected to the storage port, and the storage port and the transfer port. A storage place for stacking pallets installed in the shelving group, which is located at a high place above the vehicle for loading and unloading, and can be lifted and lowered from a trolley that travels between the storage unit and the loading / unloading port. A stacker crane type multi-storey car park, comprising: a picker that is hung and that attaches and detaches a pallet for the storage section and the storage entrance.