JPH08133419A - Multi-tier storage device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a storage device that improves storage efficiency and allows bulky storage products to be stacked and easily handled. [Structure] At least two sheets are provided with a transporting carriage that can be moved by being guided by a main frame arranged in a storage yard with a storage space at the bottom, and can be loaded into and unloaded from the storage space to put a stored item on its upper surface. Pallets and racks that are installed between these pallets to form a storage space by vertically spacing the pallets from each other.
The carrier truck is equipped with an elevating unit capable of vertically moving the uppermost pallet and the lower pallet together with the rack and arranging these pallets in a plane arrangement so that the pallets can be stacked in a storage space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage device capable of loading and unloading, for example, all residential equipment as one unit, and more particularly, it is a multi-tiered storage device in which storage efficiency of a storage yard is improved as multi-level loading. Regarding

[0002]

2. Description of the Related Art Products produced in a factory are temporarily stored in a dedicated warehouse or storage device in preparation for shipment, and the required products are selected according to the customer's request and sent to a distribution process. Sent in.

Such products are generally stored in a storage device or an automatic warehouse which can maintain an appropriate packing according to the type of the product and can efficiently carry in and out. ing.

On the other hand, for example, if all of the housing equipment are stored as one unit and this unit is transported to the customer as it is, the process from the management of the equipment to the distribution is greatly improved. To be done. In this case, since various housing equipment items are stored in one unit, the aspect is different from the storage and storage of steel materials, wire rods, pipes, etc. Can not.

When handling such a unit, since one unit is bulky, the product is placed on a pallet, and the pallet is flattened in a storage yard by using a forklift, for example, as has been widely done conventionally. It is the easiest to store and the equipment is simple. If the storage yard has a small flat area, an automated warehouse equipped with a stacker crane and a rack can be used.

[0006]

However, in the case where the pallets are laid flat, there is a limit to the efficiency of the yard, so it is necessary to manage the manufacturing schedule and shipping schedule of the product, which will have a new effect on production adjustment. It becomes a problem. Moreover, since handling is done by using a forklift, it is difficult to deal with automation, and there is a limit to improvement of processing efficiency.

Further, in the case of using a stacker crane and a rack, at least two high-rise racks are arranged and a space for running the stacker crane is provided between the two racks. Therefore, the space between the racks on which the stacker crane travels cannot be used as a storage space. That is, it is a space occupied by the stacker crane for loading and unloading products and the like into and from the storage position, which is disadvantageous in terms of storage efficiency.

As described above, in the case of handling the loading / unloading work as a unit of many kinds of products,
There are many difficulties in dealing with conventional storage devices.

An object to be solved in the present invention is to provide a storage device which can improve handling efficiency and can easily handle bulky storage products in a stacked state.

[0010]

According to the present invention, there is provided a main frame arranged in a storage yard with a storage space below, a carrier truck that is movable by being guided by the main frame, and a main body for carrying in / into the storage space. At least two or more pallets for carrying out stored items on the upper surface of the pallets, and a rack incorporated between these pallets to form a storage space with a vertical gap between the pallets are provided. The carrier vehicle is characterized by including an elevating unit capable of elevating and lowering the uppermost pallet and the lower pallet together with the rack, and arranging these pallets in a plane arrangement.

[0011]

[Operation] Since the carrier truck travels using the main frame as a guide, if the main frames are arranged in the entire storage yard, the storage space below the main frame can be provided over the entire storage yard, and the storage efficiency can be improved. It will be possible.

Further, by combining the pallet and the rack, the space between the vertically arranged pallets can be used as a storage space, and the storage items mounted on the pallet can be stacked in units of pallets, and can be placed flat. The storage efficiency is further improved compared to the case.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an overall perspective view of a multi-tiered storage apparatus of the present invention, and FIG. 2 is an enlarged perspective view of a main part.

In the figure, a total of seven rows of main frames 1 are supported in a storage yard by posts 1a, rails 1b are provided on the upper surfaces of these main frames 1a, and a storage space is provided between adjacent main frames 1. I am trying.

Two shifter frames 2 are supported by posts 2a at one end of one row of the main frame. These shifter frames 2 are in a posture orthogonal to the main frame 1 row, and the lower part thereof is a standby space for vehicles such as trucks. Then, the carrier 2b is arranged on the shifter frame 2 so as to be self-propelled, and the rail 2c provided on the upper surface thereof can be aligned with the rail 1b on the main frame 1 side.

The space defined by the four posts 1a between one row of the main frame is used as a storage place for accommodating the products in a two-tiered stacked state. At this storage location, the lower pallet 3, the rack 4, and the upper pallet 5 are combined into one assembly, and the products P ₁ and P ₂ are placed on the lower pallet 3 and the upper pallet 4, respectively.

In the illustrated example, the products P ₁ and P ₂ are housing equipment products, and the products P ₁ and P ₂ are supplied to the delivery destination as they are, assuming that the product lineup of one housing equipment product is completed. I am able to do it.

The lower pallet 3 is in the form of a flat plate having a proper strength and is used without being separated from the rack 4 by being placed on the floor of a storage yard. Similarly, the upper pallet 5 is also made into a flat plate shape and placed on the upper surface of the rack 4 so that the products P ₁ and P ₂ can be stacked and stored together with the lower pallet 3.

The rack 4 comprises four posts 4a and a mounting frame 4b for connecting the upper ends thereof to form a rectangular frame and mounting the upper pallet 5 on the upper surface thereof. Then, the lower ends of the posts 4 a of the rack 4 are positioned so as to surround the outer peripheral edge of the lower pallet 3.

The main frame 1 is provided with a carrier truck 6 traveling on its rails 1b so that it can be transferred to and from the shifter frame 2. This carrier truck 6 is provided with a base frame 6a which forms a rectangular frame whose plane shape is wider than the size when the upper and lower pallets 3 and 5 are arranged in the longitudinal direction. This base frame 6a
It can be moved up and down by passing through. The base frame 6a is provided with a traveling motor 6b for driving a wheel rolling on the rail 1b, and an elevating unit 7 for capturing the upper and lower pallets 3 and 5 and operating them up and down. .

The upper and lower pallets 3 and 5 are mounted on the carrier 6.
To mount the base frame 6a as shown in FIG.
A plurality of holders 6c that can be turned are provided on the inner peripheral side of the.
Four or more of these holders 6c are arranged on one side of the base frame 6a so that the longitudinal edges of the upper and lower pallets 3 and 5 can be held at at least two points. Then, it can be turned in the direction of the arrow by a driving mechanism (not shown) from the outside as shown in FIG. 3B, and when in the posture shown by the alternate long and short dash line, inside the base frame 6a of the upper and lower pallets 3 and 5. The pallets 3 and 5 can be mounted while holding the lower surfaces thereof in the solid line posture.

The lifting unit 7 includes a base frame 6a.
A gate-shaped traveling frame 7a is provided which can travel upward in the longitudinal direction. The traveling frame 7a is connected to a drive device 7b having an upper end provided with a wheel 7c that rolls on a rail 6b provided on the base frame 6a. Then, inside the traveling frame 7a, a lifter 8 that engages with the upper and lower pallets 3 and 5 and the rack 4 and moves them up and down is provided.

The lifter 8 can be moved up and down by a drive portion 8a provided on the upper end of the traveling frame 7a. As shown in a partial front view of the main portion of the lifter 8, a bracket connected to the drive portion 8a by a wire rope 8b is shown. At least two rows 8c are provided in the longitudinal direction, and a pair of downwardly extending arms 8d is provided at both ends in the width direction. The length of the bracket 8c in the width direction is larger than the width of the upper and lower pallets 3 and 5, and the arm 8d is longer than the height of the rack 4. A lower hook 8e for holding the upper and lower pallets 3 and 5 and a driving cylinder 8e-1 are provided at the lower end of the arm 8d, and the rack 4 is held at a portion biased toward the upper end. Upper hook 8f and its driving cylinder 8f-
1 is provided.

The lower hook 8e is operated by the driving cylinder 8e-1 from the position shown by the broken line in the drawing to the position shown by the solid line, and it goes into the stepped portion 3a provided on the side portion of the lower pallet 3 and the lower hook 8e is lowered. The pallet 3 can be supported and lifted. The same applies to handling of the upper pallet 5. The upper hook 8f also operates in the same manner by the drive cylinder 8f-1, and makes it possible to hang up each section 4 by slipping into the lower surface of the mounting frame 4b of the rack 4.

In the above-described structure, in the operation of carrying out the stored products P ₁ and P ₂ , first, the transport carriage 6 is moved to the storage location and set to the position shown in FIG. At this time, the base frame 6a is positioned so that almost half of the traveling direction of the base frame 6a stops right above the upper and lower pallets 3 and 5.

Then, the lifter 8 of the lifting unit 7 is lowered, and when the lower hook 8e of the lower end of the arm 8d is aligned with the outer peripheral edge of the upper pallet 5, the lower hook 8e is moved to the driving cylinder 8e-1. By the operation of, the lower pallet 3 is made to sneak into the lower surface of the upper pallet 5 in the same positional relationship with the lower pallet 3 as shown in FIG. As a result, the upper pallet 5 has at least four points around the lower pallet 8e.
Is held by the wire rope 8 by the drive unit 8a.
When b is rolled up and lifter 8 is raised, upper pallet 5
Is pulled up to the side of the carriage 6 together with the product P _{2 on} the upper surface thereof.

After the lower surface of the upper pallet 5 is set higher than the level of the base frame 6a by the lifter 8, the traveling frame 7a of the elevating unit 7 is moved by the drive device 7b to move the upper pallet 3 to the position shown in FIG. Let Then, after the upper pallet 3 has a posture in which the holder 6c is projected to the inner side of the base frame 6a as shown in FIG. 3, the upper pallet 5 is placed on these holders 6c and mounted on the carrier truck 6. .

Then, the traveling frame 7a is returned to the original position shown in FIG. 2, the lifter 8 is lowered again, and the lower hook 8e is made to slip into the stepped portion of the end surface of the lower pallet 3 in the same manner. At the same time as this operation, the upper hook 8f is positioned below the mounting frame 4b of the rack 4 by the operation of the driving cylinder 8f-1. Then, the lifter 8 is lifted to mount the lower pallet 3 together with the rack 4 on the base frame 6a.

As a result, the products P ₁ and P ₂ stored in the upper and lower pallets 3 and 5 in a two-tier stack are
Each of them is transferred onto the carriage 6. Then, the carrier truck 6 is moved to the shifter frame 2 side to move the carrier 2b.
The carrier 2b is transferred to the rail 2c, and then the carrier 2b is operated to position the carrier V directly above the waiting vehicle V.

After this alignment, the lower pallet 3 is moved down by the elevating unit 7 in advance and transferred onto the loading platform of the vehicle V. At this time, the rack 4 is left on the carrier 6 and only the lower pallet 3 and the product P ₁ placed on the lower pallet 3 are moved to the vehicle V side. Due to such operations, the lower pallet 3
At the same time, the rack 4 pulled up to the side of the transport carriage 6 can be held by a detachable clamp mechanism or the like provided on the inner wall side of the traveling frame 7a. With such a configuration, the rack 4 can be handled by providing the swivel holder shown in FIG. 3, for example.

After the lower pallet 3 is placed on one vehicle V, the carrier 2b is moved and positioned until it matches the position of another empty vehicle V. Then, the transport carriage 6 is once moved to the upper pallet 5 side, and the traveling frame 7a is engaged with the upper pallet 5 so that it can travel integrally. This operation can be performed by appropriately performing the lifting operation of the upper and lower hooks 8e and 8f and the lifter 8 shown in FIG. As a result, the upper pallet 5 can be placed on the vehicle V by aligning the upper pallet 5 with the bed of the vehicle V and then lowering the lifter 8.

The operation of storing the products P ₁ and P ₂ produced in the factory in the storage yard is as shown in FIG. 2 by using an appropriate means such as a crane (not shown) for the upper and lower pallets 3 and 5. It is placed on the carrier 6 so that the same state is obtained. Then, the transport carriage 6 is moved and stopped right above a predetermined storage location, and the lower pallet 3 is lowered first by the lifter 8, and the lower pallet 3 is placed on the floor of the storage yard. At this time, the rack 4 is also lowered together with the lower pallet 3 so that the upper pallet 5 can be placed thereon.

After this operation, the carriage 6 is moved to position the upper pallet 5 so as to be right above the rack 4, and at the same time, the traveling frame 7a of the elevating unit 7 is moved according to the position of the upper pallet 5. Let Then, the hook 8e of the lifter 8 catches the upper pallet 5 and lowers it to place the upper pallet 5 on the rack 4.

As described above, the operation of the single carrier truck 6 allows the lower pallet 3 and the upper pallet 5 to be stacked in two stages, and the efficiency of the yard can be improved.

[0035]

According to the present invention, by combining a pallet and a rack, stored items can be stacked and stored in one storage plane, and the storage efficiency is remarkably improved as compared with the flat storage. A large amount of stored items can be stored even in a limited storage yard.

Further, even if the main frame is arranged on the entire surface of the storage yard, the carrier truck can be moved over the storage frame to carry in and out the pallet as a unit. The whole can be used effectively and the storage efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire multi-tiered storage device of the present invention.

FIG. 2 is a perspective view of a main part showing an enlarged portion of a carrier vehicle.

FIG. 3 is an example of a pallet mounting mechanism by a carrier truck, in which FIG. 3A is a front view when the pallet is mounted on a holder, and FIG. 3B is a positional relationship between the pallet and the holder. It is a top view shown.

FIG. 4 is a partial front view showing a main part of a lifter.

[Explanation of symbols]

 1 Main Frame 2 Shifter Frame 3 Lower Pallet 4 Rack 4a Post 4b Mounting Frame 5 Upper Pallet 6 Transport Cart 6a Base Frame 6c Holder 7 Lifting Unit 8 Lifter 8e Lower Hook 8f Upper Hook

Claims (1)

[Claims] 1. A main frame having a storage space below and arranged in a storage yard, a carrier truck that is movable by being guided by the main frame, and a storage object that is carried in and out of the storage space and has a storage object on its upper surface. At least two or more pallets for placing the pallets and a rack incorporated between the pallets for forming a storage space by opening a vertical space between the pallets are provided. And a multistage stacking storage device comprising an elevating unit capable of vertically moving the pallets on the lower stage together with the rack and arranging these pallets in a plane arrangement.