KR200296867Y1 - A palletless loading structure for storage system - Google Patents

Abstract

The present invention discloses a pallet loading structure of a cargo storage system. The present invention relates to a rack and a rack which are installed in a loading space of a rack and are mounted in a horizontal direction, and are mounted on a top surface of the rack with a plurality of fork bars fixed at regular intervals so as to be orthogonal thereto, A plurality of fork bars arranged at regular intervals so as to be parallel to the fork bars of the stacker, and a conveying fork comprising high information for supporting the fork bars at the lower end thereof. The fork bar of the lower part of the fork bar having the lower height is provided with a protruding tab having a predetermined height so that the fork bar is fixed to the higher information or the protruding tab is protruded So that the transportation fork approaches from the side of the stacking table, and the fork bar is advanced, retracted, and retracted in a state in which the fork bar is alternately overlapped with the fork bar of the stacking table.

The present invention allows the cargo to be loaded and unloaded very quickly to the loading rack as the cargo forks approach the side of the cargo area while the cargo is moving up and down as much as the minimum clearance that is not interfered with relative to the fork bar It also excludes the use of separate pallets.

Description

[0001] The present invention relates to a palletless loading structure for a storage system,

The present invention relates to a cargo storage system for efficiently storing and managing a large amount of cargo such as an automated warehouse or a parking system by an automatic input and output method. More particularly, the present invention relates to a cargo storage system, Pallet loading structure of a cargo storage system in which the cargo can be loaded and unloaded very quickly to the loading rack.

In general, cargo storage system is a storage means for efficiently storing and managing a large amount of articles in a minimum space, and is widely used in a large-scale distribution system or a warehouse of various industrial sites. In recent years, a cargo storage system has been actively introduced into a parking lot as a means for effectively eliminating the parking lot of an explosive vehicle.

1, racks R having a plurality of stacking units L are installed at regular intervals, and a plurality of stacking units L are stacked on a pallet for loading pallets (Not shown), and a space between the racks R is provided with a loading / unloading device T such as a lift or a stacker crane.

The pallet on which the cargo W is mounted is transported to the transporting device T to the empty pallet table L of the rack R and the palette on the transporting device T is transported by the transporting device T (W) on the empty rack (L) of the rack (R), and the shipment is operated in the opposite direction.

In addition, in the cargo storage system, it is important that the cargo W is quickly loaded, shipped, and stocked and that the cargo T is linked by a control computer (not shown) W and the loading table L are assigned a unique code number to automatically store and retrieve the cargo W by computer control.

However, since the conventional cargo storage system carries the cargo W on a separate pallet and carries the cargo, the structure of the cargo is complicated, and a plurality of pallets and a pulling means are also required. In addition, There is a disadvantage in terms of power and time required for transportation due to an increase in load.

Particularly, in the case where some empty pallets are stored in the pallet, after the pallet W is loaded, the pallet T is moved to the empty pallet L for pallet loading of the next pallet W, The empty pallet is moved to the pallet-free pallet (L) and transferred to the pallet. Thereafter, the selected pallet (L) is loaded on the pallet There is a problem that the time required for loading and shipping of the cargo W becomes considerably long.

As a technique for solving such a problem, a so-called pallet loading structure capable of loading cargo on a rack without a pallet has appeared. For example, as shown in Figs. 2A and 2B, The stacking structure of the storage device is shown in an excerpt.

This technique is constituted by arranging a loading fork 1 at intervals on both sides of a loading space of a rack and installing a lifting fork 2 for vertically transporting the load W between the loading fork 1 . The loading fork 1 is reciprocated by the driving means (not shown) toward the lift fork 2 along the horizontal beam 3 of the rack and the lift fork 2 is interchanged with the loading fork 1, (2a, 2b) facing each other so as to be able to carry out the operation.

The lifting fork 2 is lifted up to a level slightly higher than the loading fork 1 by directly loading the cargo W and then the empty loading fork 1 is moved to the lower portion of the lifting fork 2 by the driving means Move. The lifting fork 2 then descends again and intersects with the lower loading fork 1 to transfer the cargo W onto the loading fork 1 and the loading fork 1 with the cargo W mounted thereon And then returns to the initial position by the driving means to rapidly load the cargo W into the loading space of the rack.

However, since such a conventional pallet loading structure has a structure in which the lifting fork 2 completely crosses the loading fork 1, there is a problem in that the moving distance of the lifting fork 2 required for the intersection of both is long.

Further, the stacking fork 1 must move to the upper and lower portions of the lifting fork 2 so that the actual stroke of the lifting fork 2 is determined by the height h ₁ of the stacking fork 1 and the height h ₁ of the lifting fork 2, (G ₁ , g ₂ ) which does not interfere with the movement of the loading fork (1) to the height (h ₂ ) of the cargo handling system, it takes a considerable amount of time to load and unload the cargo (W) There is a limit to shortening the time of entering and leaving.

3A and 3B illustrate the stacking structure of the stacker-crescent-shaped three-dimensional parking lot shown in Japanese Patent Laying-Open No. 5-52058 as another example of the conventional pallet stacking structure.

This technique is characterized in that a plurality of support bars 6 are protruded at regular intervals so as to face each other inside two horizontal beams 5 forming a loading space of the rack 4, And a fork 7 for mounting the cargo W on a stacker crane (not shown). The fork 7 has a plurality of bars 9 on both sides of the body 8 that can pass between the opposing support bars 6 of the rack 4.

This is because the fork 7 rises to a level slightly higher than the supporting bar 6 of the rack 4 in the state of loading the cargo W and then horizontally moves to the upper portion of the supporting bar 6 and enters the loading space. Subsequently, the fork 7 is lowered and both bars 9 are crossed with the support bars 6 of the rack 4 to transfer the cargo W onto the support bars 6 of the rack 4 And the empty forks 7 are taken out of the loading space at the lower part of the supporting bars 6 to load the cargo W. [

However, since the fork 7 completely passes from the upper part to the lower part (or from the lower part to the upper part) of the support bar 6 of the rack 4, the vertical movement distance of the fork 7 is long, There was a limit in shortening the time of entering and leaving the warehouse (W).

That is, in order for the fork 7 to come out of the support bar 6 of the rack 4, the vertical movement distance is at least equal to the height h ₃ of the support bar 6 and the height of the bar 9 of the fork 7 ₄ h) to be less than that since the sum of the upper and lower clearance (g _1, g ₂₎ required for binary, and out of the fork (7) is a limit to the vertical movement distance of the shorter fork (7).

The supporting bar 6 of the rack 4 supporting the cargo W is protruded in an appropriate length from the inside of the two horizontal beams 5 so that the cargo W to be loaded is supported by at least both supporting bars 6), which is required to be larger than the spacing of the loaded cargo (W).

It is an object of the present invention to provide a pallet stacking system for a cargo storage system capable of quickly loading and unloading cargo to and from a loading rack without using a separate pallet for loading pallets, The purpose of the structure is to provide.

Another object of the present invention is to provide a pallet loading structure of a cargo storage system capable of easily loading cargo of various sizes without regard to the size of the cargo at the set load space limit.

1 is a front view schematically showing the construction of a general cargo storage system,

FIG. 2A and FIG. 2B are a plan view schematically illustrating an example of a pallet loading structure of a conventional cargo storage system,

FIGS. 3A and 3B are a plan view schematically showing another example of the pallet loading structure of the conventional cargo storage system,

4A to 4D are conceptual diagrams for explaining the principle of the pallet loading structure of the cargo storage system according to the present invention,

5 is a plan view schematically showing the pallet loading structure of the cargo storage system according to the present invention,

Fig. 6 is a front view taken along line VI of Fig. 5,

FIGS. 7A to 7D are explanatory front views sequentially showing the operating states of the pallet loading structure according to the present invention;

Fig. 8 is a front view of an extractor showing another embodiment of the present invention pallet loading structure; Fig.

Figs. 9A to 9D are operational states of the embodiment shown in Fig. 8,

Fig. 10 is an exploded front view showing another embodiment of the present invention pallet loading structure; Fig.

Figs. 11A to 11D are operational state diagrams of the embodiment shown in Fig.

Description of the Related Art

10,30,50: Loading area 11,31,51: High information

12, 32, 52: Fork bar 33, 53:

20,40,60: Transport fork 21,41,61: High information

22, 42, 62: Fork bar 23, 63:

a: Stacking bar Fork bar height b: Carrying fork Fork bar height

s ₁ , s ₂ : Height of projecting tab C: Stacker crane

g ₁ , g ₂ : upper and lower clearances required for the fork entry and exit

In order to achieve these objectives, the inventor of the present invention has found that the fork of a rack having a fork shape can not be completely crossed up and down by the carrying fork, and the carrying fork can be lifted only by the minimum allowance necessary for transfer of the cargo The structure of which is discussed.

As a result, we found that if the fork bars of both are alternately superimposed and approach from the side, the fork can lift the cargo even if the lift fork is lifted as much as the margin, and examined in various aspects to realize this concept.

4A, the loading bar 10 and the fork bars 12 and 22 of the carrying fork 20 are installed on the high information 11 and 21 and the height of the fork bar 12 of the loading bar 10 (a) is equal to or greater than the height (b) of the fork bar (22) of the transportation fork (20). However, in this case, since the transportation fork 20 must be positioned higher than the loading table 10 by a margin (g ₁ ) for carrying the cargo W when it approaches the loading table 10, Information 21 is stuck on the tip of the fork bar 12 of the loading table 10 and does not completely enter.

The height a of the fork bar 12 of the loading table 10 is set smaller than the height b of the fork bar 22 of the transportation fork 20 so that the height of the fork bar 22 ) were to be projected as a fork bar 12 up and down to free (g ₁₎ of the susceptor (10). However, in this case, the leading end of the fork bar 22 on the entry side is caught by the high information 11 of the loading table 10, which is also impossible to completely enter.

4C, the height b of the fork bar 22 of the transportation fork 20 is set to be larger than the height a of the fork bar 12 of the loading table 10, To protrude above the fork bar (12). In this case, the fork bar 22 of the transportation fork 20 can completely enter the loading table 10, but the transportation fork 20 can not be lifted or lowered, and the cargo W can not be transferred.

4D, the height of the fork bar (b) of the transportation fork (20) is smaller than the height (a) of the fork bar (12) A tab 23 fixed on the high information 21 is formed to give a constant spacing s between the upper end of the high information 21 and the lower end of the fork bar 22. [

The height difference ab between the two fork bars 12 and 22 is equal to the difference in height between the transportation fork 20 and the upper ends of the fork bars 22 and 12 of the loading table 10 (g ₂ ) or more, and the interval s is made larger than the margin margin (g ₁ + g ₂ ) necessary for the movement of the cargo W. This can be simply expressed as: ab> g ₂ , s> g ₁ + g ₂ .

In this case, the height (s + b) of the substantially entire fork bar 22 of the carrying fork 20 including the clearance s is at least equal to the height a of the fork bar 12 of the stacking bin 10 because of the size enough to g _1), namely, even if entering the s + b> a + g ₁ since the upper fork bar 22 of a transporting fork 20 loaded in position in the upper level as the upper margin (g ₁₎ for 10 The height information 21 is not interfered with the tip of the fork bar 12 of the loading table 10 by the interval s.

Since the height a of the fork bar 12 of the loading table 10 is larger than the height b of the fork bar 22 of the carrying fork 20 by the lower margin g ₂ , _The upper end of the fork bar 22 is lower than the upper end of the fork bar 12 of the loading table 10 by the lowering of the carrying fork 20 after the carrying fork 20 has entered the loading table 10 g ₂₎ during which the cargo located in the lower level of different materials (W) by a fork bars (22 in Fig carrying fork (20)) at the bottom is no longer interfere with the said information (11) of the susceptor (10).

Accordingly, based on the above consideration, one form of the pallet loading structure according to the present invention is installed in a loading space of a rack, and is installed on the upper surface of the horizontally installed high- A pallet comprising a plurality of fork bars fixed at regular intervals; A plurality of fork bars which are driven in a direction of a plurality of axes by the conveying means and are arranged at regular intervals so as to be parallel to the fork bars of the stacking table, and a conveying fork comprising high information for supporting the forks at their lower ends,

The fork bar height of the pallet and the transportation fork is relatively higher than that of the rest, and the fork bar of the lower height is provided with a protruding tab having a predetermined height at the lower end thereof, So that the fork bar is moved in a state of being alternately overlapped with the fork bar of the stacking table.

According to a preferred feature of the present invention, the height of the protruding tab is set at least larger than the height of lifting and lowering of the transportation fork required for carrying the cargo, and a stacker crane, for example, is used as a transportation means.

Another aspect of the pallet loading structure according to the present invention is that the pallet loading structure is installed in a loading space of a rack and includes high-level information installed horizontally and protruding tabs of a predetermined height at a lower part thereof, A plurality of fork bars fixed at regular intervals so as to be orthogonal to each other; A plurality of fork bars which are driven in the direction of the multiple axes by the conveying means and which have the same height as the fork bars of the stacking bar and which are arranged at regular intervals so as to be parallel with them and have protruding tabs of a predetermined height in the middle in the longitudinal direction of the lower ends, Wherein the fork bar approaches from the side surface of the stacking table, and the fork bar enters, elevates and retracts in a state in which the fork bar is alternately overlapped with the fork bar of the stacking table. do.

Accordingly, the present invention allows the cargo to be loaded and unloaded very quickly to and from the loading rack as the cargo moves up and down the minimum clearance that is not interfered with relative to the fork bar when the carrying fork is moved forward to the loading cargo It also excludes the use of separate pallets.

In addition, since the fork bar of the loading platform is not detached and is fixed to the upper surface of the high information, it is possible to easily load various sizes of freight regardless of the size of the freight in the set loading space limit. Reliability and storage efficiency.

These and other features and advantages of the present invention will become more apparent from the following description of preferred embodiments with reference to the accompanying drawings.

5 to 7D, the pallet loading structure according to the present invention is basically a pallet 10 fixedly installed in the loading space of the rack R and supporting the cargo W from the bottom, And a transportation fork 20 for loading and unloading the cargo W on the loading table 10 while approaching and retracting to the side of the loading table 10 by means capable of proceeding in the direction of the loading table 10.

Here, for convenience of explanation, the view connecting the post P arranged in the width direction of the rack R from the plane is referred to as a horizontal beam B, and the post P arranged in the longitudinal direction of the rack R It is referred to as "connecting beam".

The loading table 10 is composed of a high information 11 and a plurality of fork bars 12 installed on the upper surface of the high information 11 in a plan view. The fork bar 12 is formed of a long plate having an appropriate thickness and width, is fixedly erected in the width direction thereof, and is disposed in parallel with the longitudinal direction of the high-definition information 11 at an interval larger than at least the thickness thereof.

The high information 11 is fixed between the two horizontal beams B of the rack (R). The high information 11 should be placed in the middle of the longitudinal direction of the fork bar 12 for stable support of the cargo W but it is required that the entrance of the transportation fork 20 And is biased toward the opposite side. The amount of eccentricity of the high information 11 is set at least larger than the width of the high information 21 of the transportation fork 20.

Therefore, it is preferable that at least one of the high information 11 of the loading table 10 is provided on the opposite side of the transportation fork 20 so as to stably support the cargo W, thereby achieving structural stability.

The rack R is partitioned into a lattice structure by a plurality of posts P, a horizontal beam B and a connecting beam to form a loading space. Preferably, the rack R includes two high- ) Function simultaneously as a connection beam of the rack (R). This also means that the connecting rods of the rack R also serve as a high information role of the loading table 10.

Thus, when the loading table 10 is provided in the rack R ₁ located at the edge and the transportation fork 20 approaches only one of the left and right sides of the loading rack 10, The high information 11 is provided at an intermediate portion of the horizontal beam B of the rack R so that the fork bar 12 protrudes from the high information 11 at least 1/2 of its length toward the entry side of the transportation fork 20 Of the total population.

On the other hand, when the rack 10 is installed in the rack R ₂ positioned in the middle of the both-side rack R ₁ and the transportation fork 20 approaches both the left and right sides thereof, The height information 11 of the fork bar 12 is provided between the two posts P of the rack R ₂ and the length of the fork bar 12 is twice as long as that of the edge rack R ₁ , And both ends are projected to both sides of the two pieces of information 11, respectively.

The carrying fork 20 is also provided with a plurality of fork bars 22 arranged in parallel with the fork bars 12 of the stacking table 10 and a plurality of fork bars 22 arranged at right- And high information 21 integrally fixed and supported.

The fork bar 22 of the transportation fork 20 is also fixed in a plate shape having an appropriate thickness and width and is erected in the width direction like the fork bar 12 of the loading table 10, Are arranged at an interval larger than the thickness thereof so as to overlap with the bars (12).

Here, various types of conveying means for driving the conveying fork 20 can be used, and preferably a stacker crane C capable of operating in three axial directions can be used. In this case, the transportation fork 20 may be mounted on the fork F of the stacker crane C, or may be mounted directly without excluding the fork F.

On the other hand, the height a of the fork bar 12 of the loading table 10 is configured to be relatively higher than the height b of the fork bar 22 of the transportation fork 20, A protrusion of an appropriate height s ₁ which is extended from the lower end of the bar 22 to be fixed to the high information 21 so as to make its total height higher than the height a of the fork bar 12 of the mounting table 10 Tab 23 is provided.

The height difference between the loading table 10 and the fork bar 12 and the fork bar 20 and the height of the fork bar 22 is such that at least the interference with the cargo W when the carrying fork 20 moves forward and backward with respect to the table 10 (G ₁ or g ₂ ) between them in order to prevent the above-mentioned problems.

For example, when the transportation fork 20 mounts the cargo W and enters the loading platform 10, when the top level of the forks 22 and 12 is the same, the cargo W is transferred to the loading platform 10 The upper end of the fork bar 22 of the transportation fork 20 is positioned above the upper end of the fork bar 12 of the loading table 10 for reliable transportation g &_lt; RTI ID = 0.0 > ₁ ). < / RTI >

On the other hand, when the cargo W is transferred onto the fork bar 12 of the loading table 10 and then exited, the upper end of the fork bar 22 of the carrying fork 20 is moved to the loading table 10, (G ₂ ) than the upper end of the fork bar 12 of the _{first embodiment} . Of course, when the cargo W is taken out from the loading table 10, it is opposite to that in the above-mentioned loading.

Therefore, even if the fork bar 22 of the transportation fork 20 is located at a level as low as the lower margin g ₂ , it must not be in contact with the high information 11 of the table 10, The height a of the fork bar 12 must be greater than the clearance g ₁ and g ₂ than the height b of the fork bar 22 of the transportation fork 20.

These upper and lower working clearance (g ₁₎ (g ₂₎ is set at a minimum spacing that can not cause interference to the fork bars (12, 22) the cargo (W) of the or of the transport loading conditions .

The height s ₁ of the protruding tabs 23 formed on the fork bar 22 of the transportation fork 20 is the sum of the upper and lower clearances g ₁ and g ₂ of the transportation fork 20 . This is because the height information 21 should not be in contact with the fork bar 12 of the loading table 10 even when the transportation fork 20 is located at a level as high as the upper margin g ₁ .

This means that the height s ₁ of the protruding tabs 23 must be at least greater than the lift height g ₁ + g ₂ of the transportation fork 20 necessary for transfer of the cargo W.

Next, the operating state of the pallet loading structure of the cargo storage system constructed as described above will be described with reference to FIGS. 7A to 7D.

7A, the transportation fork 20 on which the cargo W is loaded from the outside is loaded on the empty rack 10 of the rack R by the stacker crane C. At this time, the operation of the carriage K of the stacker crane C is controlled by a sensor (not shown) so that the upper end of the fork bar 22 is positioned above the upper end of the loading table 10 g &_lt; RTI ID = 0.0 > ₁ ) < / _RTI >

Next, as shown in Fig. 7B, the fork F installed in the carriage K causes the transportation fork 20 to move horizontally toward the loading table 10, and thus the fork bar 20 of the transportation fork 20 22 are alternately overlapped with the fork bar 12 of the loading table 10 and enter from the side of the loading table 10.

Since the transportation fork 20 is provided with the protruding tabs 23 of a predetermined height s _{1 in the} middle of the lower end of the fork bar 22, the high information 21 is transferred to the fork bar 12 ) Of the loading table 10 without coming into contact with the leading end of the loading table 10.

That is, the protruding tab 23 has a height s _{1 which} is larger than the lift height g ₁ + g ₂ of the transportation fork 20 necessary for carrying the cargo W, and the height of the fork bar 20 of the transportation fork 20 The high information 21 of the transportation fork 20 is transferred to the fork bar 12 of the loading table 10 even when the upper end of the transportation fork 20 is lifted by the margin g _{1 from the} upper end of the fork bar 12 of the loading table 10, It is possible to enter without getting caught.

Since the high information 11 of the loading table 10 is biased toward the opposite side by the width of the high information 21 of the carrying fork 20 at the middle point of the fork bar 12, The bar 22 is completely inserted into the space between the fork bars 12 of the pallet 10. Then, the cargo W is held on the carrying fork 20 and is placed on the loading table 10.

In this state, it is lowered by the carriage (K) has a predetermined height, i.e., the upper and lower clearance (g ₁ + g ₂₎ of the stacker crane (C) as shown in Fig. 7c. The upper end of the fork bar 22 of the transportation fork 20 is positioned at a level lower than the upper end of the fork bar 12 of the loading table 10 by the lower margin g ₂ , And is transferred from the fork bar 22 of the fork 20 onto the fork bar 12 of the loading table 10.

7D, as the fork F of the stacker crane C returns to the initial position, when the cargo W is transferred onto the fork bar 12 of the loading table 10, (20) is taken out of the loading platform (10) to complete the loading of the cargo (W).

On the other hand, when the cargo W is taken out from the stacking platform 10, the process proceeds in the reverse order of the above-mentioned stacking.

As can be seen from the above, the loading structure of the present invention is such that the carrying fork 20 approaches and retracts from its side at approximately the same level as the loading table 10, The cargo W can be loaded or unloaded while being lifted up and down only by the upper and lower clearances (g ₁ + g ₂ ) of the cargo. The construction is simple, and in particular, the time required for loading and unloading is minimized.

8 to 9D schematically show another embodiment of the pallet loading structure according to the present invention.

This embodiment has a configuration in which the configuration of the fork bar 42 of the transportation fork 40 and the configuration of the fork bar 32 of the loading table 30 are reversed in the configuration of the above embodiment. That is, the height a of the fork bar 32 of the loading table 30 is formed to be smaller than the height b of the fork bar 42 of the transportation fork 40 by a margin (g ₁ or g ₂ ) And the protruding tabs 33 of the predetermined height s ₂ to be bonded to the high-quality information 31 are formed.

Projecting tab 33 of such a mounting table 30 is also set larger than the sum of the transport forks 40, cargo (W) onto the lifting height required for different materials, the lower free (g _1, g ₂₎ of the.

9A, the upper end of the fork bar 42 of the transportation fork 40 is positioned at a level higher than the upper end of the fork bar 32 of the loading table 30 by a margin g ₁ , The leading end of the fork bar 42 of the transportation fork 40 does not come into contact with the high information 31 of the loading table 30 and the high information 41 of the carrying fork 40 does not contact the high information 31 of the loading table 30 Information 31 to the nearest point.

9C, even if the upper end of the fork bar 42 of the transportation fork 40 is lowered to a level lower than the upper end of the fork bar 32 of the loading table 30 by the lower margin g ₂ , 33) height (s _2), the upper and lower if (g _1, g ₂₎ because of the size than the sum is not in conflict with the said information (31 of the mounting bracket 30) of the, whereby the cargo on the carrying fork (40) (W) is transferred onto the stage (30).

When the transfer of the cargo W is completed, the transfer fork 40 is returned to the initial position again as shown in FIG. 9D. At this time, the transfer fork 40 is transferred by the projecting tab 33 of the loading table 30 (S) of the cargo (W) or the loading table (30) according to the margin height (s ₂ )

On the other hand, Figs. 10 to 11D schematically show another embodiment of the pallet loading structure according to the present invention.

This is because the height a and the height b of the fork bar 62 of the stacking platform 50 and the height of the fork bar 62 of the transporting fork 60 are made equal to each other, And protruding tabs 53 and 63 of a predetermined height s ₂ (s ₁ ) joined to the high information 51 and 61 are formed at the lower end, respectively.

The height of the respective projecting tabs 53, 63 of the case (s ₂₎ (s ₁₎ is the upper or lower margin (g ₁₎ which is assigned to the advance and retreat of the transporting fork 60 to the mounting table (50), (g ₂ ). Further, the height (a) (b) of each of the fork bars 52, 62 is set to correspond to the height of the smaller one in the above-described embodiments.

11 (a) to 11 (d), it is operated in the same manner as the above-described embodiments. When the transportation fork 60 enters the loading platform 50, the operation of the fork bar 62 The protruding tabs 63 provided at the lower end prevent the high information 51 and 61 from coming into contact with each other and the protruding tabs 53 provided at the lower end of the fork bar 62 of the loading table 50 And thus it is distinguished from the above-described embodiments.

In this embodiment, the heights a, b (s ₂ , s ₁ ) of the fork bar 52, 62 and the protruding tabs 53, 63 can be set smaller than those of the above- It is possible to further reduce the loading and unloading time of the vehicle W and contribute to the space reduction of the cargo storage system.

As described above, according to the pallet stacking structure of the cargo storage system according to the present invention, when the transportation fork approaches the side of the stacking platform, a minimum allowance It is possible to load and unload the cargo to and from the loading rack very quickly by lifting and carrying the cargo forks as much as the interval.

In addition, there is no need to use a separate pallet because the fork transports the cargo directly onto the rack and draws it from there.

In addition, since the fork bar of the loading platform is not detached, it is fixed on the upper surface of the high information, so that it is possible to easily load various sizes of cargo regardless of the size of the cargo at the set loading space limit.

Therefore, the present invention has an excellent effect that contributes greatly to the promptness of entry and exit of the cargo storage system, reliability, and storage efficiency.

Claims (10)

CLAIMS 1. A cargo storage system comprising a rack having a plurality of loading spaces and a conveying means for conveying and loading or discharging the cargo to and from the loading space of the rack, A loading table installed in the loading space of the rack and comprising a plurality of forks arranged horizontally and fixed at regular intervals on the upper surface of the high information; A plurality of fork bars driven in the direction of the multi-axis by the conveying means and arranged at regular intervals so as to be parallel to the fork bars of the stacking bases, and high-level information supporting the fork bars at the lower end thereof, The fork bar of the transporting fork and the fork of the transporting fork are relatively higher than the others, and the fork bar of the lower height is provided with a protruding tab of a predetermined height at the lower end thereof, Lifts, and retracts in a state in which the fork bar is superimposed alternately on the fork bar of the stacking table. 2. The cargo storage system according to claim 1, wherein the fork bar of the transportation fork is operated in a state in which the upper end of the fork bar is positioned above or below a predetermined level with respect to the upper end of the fork bar of the loading stand, Pallet loading structure. 3. The cargo storage system of claim 2, wherein the height difference between the forks of the pallet and the fork is set larger than a level difference maintained between at least the top of the pallet and the fork of the pallet. Loading structure. The pallet stacking structure according to any one of claims 1 to 3, wherein the height of the protruding tabs is set at least larger than an elevation height of a transportation fork required to transfer the cargo. The pallet stacking structure of claim 1, wherein the fixed view of the pallet is biased toward the opposite side of the fork of the fork in the longitudinal middle of the fork bar. The pallet stacking structure of claim 1, wherein the conveying means is a stacker crane. CLAIMS 1. A cargo storage system comprising a rack having a plurality of loading spaces and a conveying means for conveying and loading or discharging the cargo to and from the loading space of the rack, A loading table installed in the loading space of the rack and having a plurality of fork bars fixed to the upper surface of the high information by having high information horizontally installed and a protruding tab of a predetermined height at a lower part thereof and fixed at regular intervals thereto; A plurality of fork bars which are driven in the direction of multiple axes by the conveying means and which have the same height as the fork bars of the stacking bar and are arranged at regular intervals so as to be in parallel with the bars and have projecting tabs of a predetermined height in the middle in the longitudinal direction of the lower ends, And a transfer fork having high information for supporting the protruding tabs at the lower end thereof, Wherein the fork bar approaches from the side of the stacking table and the fork bar enters, elevates and retracts in a state in which the forks are alternately overlapped with the forks of the stacking platform. The cargo storage system according to claim 7, wherein the fork bar of the transportation fork is operated in a state in which the upper end of the fork bar is located at the upper side or the lower side with respect to the upper end of the fork bar of the loading table Pallet loading structure. 9. A method according to claim 7 or 8, wherein the height of the projecting tabs of the stacking platform and the transporting fork is set to be greater than a level difference maintained between the tops of the fork bars of both the transporting forks and the transporting forks. The pallet loading structure of the system. 8. The pallet loading structure of claim 7, wherein the fixed view of the pallet is biased towards the opposite side of the fork of the fork in the longitudinal middle of the fork bar.