JP7397478B2 - storage system - Google Patents

Description

The present invention relates to a storage system that includes a rack and a transport tool placed on the rack.

2. Description of the Related Art Storage systems that include racks and transportation tools such as pallets or containers that are placed on the racks are known. As this type of storage system, for example, Patent Document 1 describes a transportation tool in which a fitting part that fits into a crosspiece of a rack is formed on the bottom surface.

JP 2018-2205 Publication

In a transportation tool in which a fitting part that engages with the crosspiece is formed on the bottom surface, for example, when the crosspiece is arranged in a direction substantially perpendicular to the direction in which the transportation tool is taken in and out, the fitting part There is a problem that it is easy to get caught on the crosspiece, making it difficult to put in and take out the transportation equipment.

One aspect of the present invention is to provide a storage system in which transportation tools are not easily caught on racks when being put in and taken out, and in which transportation tools can be easily taken in and out.

In order to solve the above problems, a storage system according to aspect 1 of the present invention is a storage system comprising a rack and a transportation tool placed on the rack, wherein the rack is used for loading and unloading the transportation tool. The carrying tool has a plurality of mating parts spaced apart from each other in the direction, and the carrying tool has a plurality of mating parts on its bottom surface when placed at a predetermined position of the rack. The fitting part, which is located at the farthest side in the insertion/removal direction, is closer to the front side in the insertion/removal direction than the fitted part that is fitted at the predetermined position. This configuration has a shape that does not fit into the other fitted portion located therein.

In the above configuration, since the fitting part located at the farthest side in the loading/unloading direction has a shape that does not fit into the mated part located at the front side, the fitting part located at the farthest side in the loading/unloading direction has a shape that does not fit into the fitted part located at the front side. The mating part is unlikely to get caught in the mating part located on the front side. Here, when loading or unloading a carrying tool into or out of a rack, the carrying tool is often moved in the loading/unloading direction while, for example, the front side of the carrying tool is lifted. In this case, the bottom surface of the transport tool on the near side rises from the rack, and the bottom surface on the back side slides on the rack. Therefore, by having a shape in which the fitting part located on the farthest side does not fit into the fitted part located on the near side, the carrying tool is less likely to be caught on the rack when being taken out or put in. Therefore, according to the above configuration, it is possible to realize a storage system in which the transportation tool is unlikely to be caught on the rack when being put in and taken out, and the transportation tool can be easily taken in and out.

In the storage system according to aspect 2 of the present invention, in the above-mentioned aspect 1, each of the plurality of fitting parts is located closer to the front side in the loading/unloading direction than the fitted part that fits in the predetermined position. It may be configured to have a shape that does not fit into the other fitting portions.

According to the above configuration, since each fitting part does not fit into the non-fitting part located on the front side, the carrying tool can be made difficult to be caught by the rack when taking it in or out.

In the storage system according to Aspect 3 of the present invention, in Aspect 1 or 2 above, the plurality of fitted parts are composed of a plurality of crosspieces each arranged in a direction substantially perpendicular to the loading/unloading direction. The crosspiece located at the farthest side in the loading/unloading direction may have a smaller width in the loading/unloading direction than the other crosspieces.

In the above configuration, the width of the crosspiece located on the farthest side is smaller than the width of the other crosspieces, and the shape of the fitting part located on the farthest side matches the width of the crosspiece located on the farthest side. is set. Therefore, according to the above configuration, it is possible to prevent the fitting part located on the farthest side from fitting into the crosspiece on the near side.

In the storage system according to aspect 4 of the present invention, in aspect 3 described above, the width of the plurality of bars may become smaller depending on the position from the front side to the back side in the loading/unloading direction.

According to the above configuration, by adjusting the shape of each fitting part, it is possible to prevent each fitting part from fitting into the crosspiece located on the front side.

The storage system according to aspect 5 of the present invention may be configured to include a fitting recess that is arranged on the bottom surface of the carrying tool and that sandwiches the crosspiece from both sides in the loading/unloading direction in the above aspect 3 or 4.

According to the above configuration, since the fitting part includes a fitting recess that fits by sandwiching the crosspiece, by adjusting the size (width) of this fitting recess, the fitting part can accommodate crosspieces of different widths. can be suitably obtained.

In the storage system according to aspect 6 of the present invention, in the above aspect 5, the fitting recess is formed between a pair of protrusions protruding from the bottom surface, and the fitting recess is formed between the pair of protrusions protruding from the bottom surface, and The pair of protrusions may have a larger protrusion amount from the bottom surface than the other pair of protrusions.

According to the above configuration, since the fitting recess located closest to the front side and the crosspiece are fitted deeply, it is difficult for the transportation tool to be misaligned, and the transportation tool can be stably placed on the rack. can. In addition, as mentioned above, when moving the carrying tool with the front side of the carrying tool lifted when taking it in and out of the rack, it is necessary to The alignment is off. Therefore, even if the protrusion amount of the pair of protrusions located closest to the front side is increased, the workability when loading and unloading the carrying tool from the rack does not deteriorate.

In the storage system according to aspect 7 of the present invention, in the above aspect 6, each surface of the pair of protrusions located on the opposite side of the fitting recess approaches the bottom surface as it moves away from the fitting recess. It is also possible to have a configuration that is inclined in the direction.

According to the above configuration, the protrusion can easily climb over the crosspiece when the carrying tool is taken in and out of the rack.

According to one aspect of the present invention, it is possible to provide a storage system in which transportation tools are difficult to get caught on racks when being put in and taken out, and are easy to take out and put in.

FIG. 1 is a top perspective view showing a storage system according to Embodiment 1 of the present invention. FIG. 2 is a top perspective view of the rack shown in FIG. 1; FIG. 3 is a cross-sectional view showing the receiving crosspiece shown in FIG. 2; Figure 2 is a top perspective view of the carrier shown in Figure 1; Figure 5 is a bottom perspective view of the carrier shown in Figure 4; Figure 5 is a side view of the carrier shown in Figure 4; Figure 5 is a bottom view of the carrier shown in Figure 4; It is a side view which shows the fitting state of a receiving crosspiece and a fitting part when the carrying tool is mounted in the predetermined position of a rack. 9 is a downward perspective view showing the fitted state shown in FIG. 8. FIG. FIG. 9 is a side view showing a state in which the carrying tool is pulled out to the front from the predetermined position shown in FIG. 8; FIG. 11 is a side view showing a state in which the carrying tool is further pulled out toward the front from the position shown in FIG. 10; FIG. 3 is a side view showing a storage system according to Embodiment 2 of the present invention.

[Embodiment 1]
An embodiment of the present invention will be described below. First, the configuration of a storage system 1 according to an embodiment of the present invention will be described.

(Storage system configuration)
FIG. 1 is a top perspective view showing a storage system 1 according to this embodiment. As shown in FIG. 1, the storage system 1 includes a rack 2 and a transport tool 3 placed on the rack 2. A plurality of storage systems 1 are installed in, for example, warehouses, factories, etc., and store the luggage by placing the luggage loaded on the transport tool 3 on the rack 2.

In this specification, when the rack 2 is viewed from the front, the width direction of the rack 2 may be referred to as the left-right direction, the height direction of the rack 2 may be referred to as the up-down direction, and the depth direction of the rack 2 may be referred to as the front-rear direction. Further, the front-back direction may be referred to as the loading/unloading direction of the carrying tool 3, the front side in the front-back direction may be referred to as the front side, and the rear side in the front-back direction may be referred to as the back side.

In the storage system 1, the rack 2 has a stacking structure of two upper and lower stages, and three transport tools 3 are placed on each stage in line in the left-right direction. The carrying tool 3 is taken in and taken out from the front side of the rack 2. In the storage system 1 according to this embodiment, a total of six transportation tools 3 can be placed on the rack 2. However, the size and shape of the rack 2 and the transport tool 3, the number of transport tools 3 that can be placed on the rack 2, etc. can be changed as appropriate depending on the size, type, etc. of the cargo to be stored.

The storage system 1 has a configuration in which a part of the rack 2 and a part of the transport tool 3 fit together when the transport tool 3 is placed at a predetermined position on the rack 2, and cannot be fitted in any other position other than the above predetermined position. By adopting this, it is possible to easily take the carrying tool 3 in and out of the rack 2.

(rack)
FIG. 2 is a top perspective view of the rack 2 shown in FIG. FIG. 2 shows the rack 2 without carrying tools 3 placed thereon. The rack 2 is a shelf on which the transportation tool 3 is placed. As shown in FIG. 2, the rack 2 is composed of a plurality of supports, crosspieces, and the like. The rack 2 includes a receiving bar 20 on which the bottom of the carrying tool 3 is placed.

The receiving beams 20 are arranged at two upper and lower stages of the rack 2, respectively. In the present embodiment, the rack 2 includes a first receiving bar (fitting part/bar) 20a and a second receiving bar (fitting part/bar) 20b, which are arranged at intervals in the direction of loading and unloading the transportation tool 3. and a third receiving bar (fitted part/bar) 20c is included as the receiving bar 20.

The first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c are cross-section crossbars each arranged in a direction substantially orthogonal to the direction in which the carrying tool 3 is taken in and taken out, that is, in the left-right direction of the rack 2. The first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c are arranged substantially parallel to each other in this order from the front side toward the back side in the loading/unloading direction.

The first receiving bar 20a is located at the frontmost side in the loading/unloading direction. Both ends of the first support beam 20a are connected to a pair of first support supports 21a arranged on both left and right sides of the rack 2. The first support beam 20a is supported by the first support support column 21a in a state where it is spanned between a pair of first support support columns 21a.

The second receiving bar 20b is located between the first receiving bar 20a and the third receiving bar 20c. Both ends of the second support beam 20b are connected to a pair of second support supports 21b arranged on both left and right sides of the rack 2. The second support beam 20b is supported by the second support support column 21b while being spanned between the pair of second support support columns 21b.

The third receiving bar 20c is located at the farthest side in the loading/unloading direction. Both ends of the third support beam 20c are connected to a pair of third support supports 21c arranged on both left and right sides of the rack 2. The third support beam 20c is supported by the third support support column 21c in a state where it is spanned between a pair of third support support columns 21c.

Two openings 22 are formed at the bottom of the rack 2 into which the claws of a forklift can be inserted. The openings 22 are formed at the lower portions of the front and rear surfaces of the rack 2, respectively. In the storage system 1, a rack 2 can be transported by a forklift with a plurality of carrying tools 3 loaded thereon.

FIG. 3 is a sectional view showing the first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c shown in FIG. FIG. 3 shows cross sections of the first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c when the rack 2 is cut along a plane parallel to the front-rear direction and the vertical direction.

As shown in FIG. 3, the widths d1 to d3 of the first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c in the loading/unloading direction gradually become smaller depending on the position from the front side to the back side in the loading/unloading direction. ing. That is, the width d1 of the first receiving bar 20a located at the frontmost side in the loading/unloading direction is the largest, and the width d3 of the third receiving bar 20c located at the farthest side in the loading/unloading direction is the smallest. Moreover, the width d2 of the second receiving bar 20b located between the first receiving bar 20a and the third receiving bar 20c is smaller than the width d1 and larger than the width d3.

In this way, in the rack 2, the widths d1 to d3 are not constant, but gradually become smaller depending on the position from the front side to the back side in the loading/unloading direction. Thereby, as will be described later, it becomes possible to make it difficult for the transportation tool 3 to get caught on the rack 2 when loading and unloading the rack.

(Transportation equipment)
FIG. 4 is a top perspective view of the carrier 3 shown in FIG. 1. FIG. 5 is a bottom perspective view of the carrier 3 shown in FIG. 4. FIG. 6 is a side view of the carrier 3 shown in FIG. 4. FIG. 7 is a bottom view of the carrier 3 shown in FIG. 4.

The carrying tool 3 is a stand or a container on which various loads such as mechanical parts are placed and carried. In this embodiment, the carrying tool 3 is comprised of a plastic container. However, the transportation tool 3 may be made of metal or may be a pallet or the like.

As shown in FIGS. 4 to 7, the carrying tool 3 includes a bottom wall 31, a right side wall 32, a left side wall 33, and a rear wall 34. The transport tool 3 has an opening at the front and upper part, and cargo can be taken in and out of the transport tool 3 through these openings. However, the carrying tool 3 may have any shape as long as it can be loaded and carried. That is, the carrying tool 3 may have any shape as long as it includes at least the bottom wall portion 31.

The bottom wall portion 21 is approximately rectangular in plan view with its longitudinal direction extending in the direction in which the carrying tool 3 is taken in and taken out, and is located at the bottom of the carrying tool 3 . Three sides, the right end, the left end, and the rear end of the bottom wall portion 21 are connected to the lower ends of the right side wall portion 32, the left side wall portion 33, and the rear wall portion 34, respectively. The right side wall 32 is located on the right side of the carrying tool 3 and extends upward from the right end of the bottom wall 21 . The left side wall 33 is located on the left side of the carrying tool 3 and extends upward from the left end of the bottom wall 21 . The rear wall portion 34 is located on the rear side of the carrying tool 3 and extends upward from the rear end of the bottom wall portion 21 .

The bottom surface 30 of the bottom wall portion 31 is provided with a first fitting portion that can be fitted to the first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c of the rack 2 at a predetermined position P of the rack 2 (see FIG. 8). 35a, a second fitting part 35b, and a third fitting part 35c are arranged. The first fitting part 35a, the second fitting part 35b, and the third fitting part 35c are arranged in this order from the front side to the back side in the insertion/removal direction. Each of the first fitting part 35a, the second fitting part 35b, and the third fitting part 35c is arranged near the left and right sides of the bottom surface 30, respectively.

The first fitting portion 35a is located at the frontmost side in the insertion/removal direction. The first fitting part 35a includes a first fitting recess 36a that sandwiches and fits the first receiving bar 20a from both sides (i.e., front and rear sides) in the insertion/removal direction. The first fitting recess 36a is formed between a pair of first protrusions 37a that protrude from the bottom surface 30 and face each other in the insertion/removal direction.

The second fitting part 35b is located between the first fitting part 35a and the third fitting part 35c. The second fitting portion 35b includes a second fitting recess 36b that sandwiches and fits the second receiving bar 20b from both sides (i.e., front and rear sides) in the insertion/removal direction. The second fitting recess 36b is formed between a pair of second protrusions 37b protruding from the bottom surface 30 and facing in the insertion/removal direction.

The third fitting portion 35c is located at the farthest side in the insertion/removal direction. The third fitting portion 35c includes a third fitting recess 36c that sandwiches and fits the third receiving bar 20c from both sides (i.e., front and rear sides) in the insertion/removal direction. The third fitting recess 36c is formed between a pair of third protrusions 37c protruding from the bottom surface 30 and facing in the insertion/removal direction.

In the carrying tool 3, the widths D1 to D3 of the first fitting recess 36a, the second fitting recess 36b, and the third fitting recess 36c in the loading/unloading direction are graded depending on the position from the front side to the back side in the loading/unloading direction. It has become smaller. That is, the width D1 of the first fitting recess 36a located furthest in the insertion/removal direction is the largest, and the width D3 of the third fitting recess 36c located furthest in the insertion/removal direction is the smallest. Further, the width D2 of the second fitting recess 36b located between the first fitting recess 36a and the third fitting recess 36c is smaller than the width D1 and larger than the width D3.

Specifically, the width D1 of the first fitting recess 36a corresponds to the width d1 of the first receiving bar 20a, and is set to a value that allows it to fit into the first receiving bar 20a. Moreover, the width D2 of the second fitting recess 36b corresponds to the width d2 of the second receiving bar 20b, and is set to a value that fits into the second receiving bar 20b but does not fit into the first receiving bar 20a. Furthermore, the width D3 of the third fitting recess 36c corresponds to the width d3 of the third receiving bar 20c, and is a value that fits into the third receiving bar 20c but does not fit into the first receiving bar 20a and the second receiving bar 20b. is set to

In addition, in the carrying tool 3, the pair of first protrusions 37a located at the frontmost side in the loading/unloading direction protrude more from the bottom surface 30 than the pair of second protrusions 37b and the pair of third protrusions 37c. . As a result, the depth of the first fitting recess 36a increases, and the fitting between the first fitting recess 36a and the first receiving bar 20a becomes deeper. Therefore, the positional shift of the transportation tool 3 is less likely to occur, and the transportation tool 3 can be stably placed on the rack 2. In addition, when moving the carrying tool 3 with the front side of the carrying tool 3 lifted when taking it in and out of the rack 2, the fitting between the first fitting recess 36a and the first receiving bar 20a The alignment is off. Therefore, even if the amount of protrusion of the pair of first protrusions 37a is increased, the workability when loading and unloading the carrying tool 3 into and out of the rack 2 does not deteriorate.

Further, in the carrying tool 3, the two surfaces of each pair of protrusions 37a to 37c located on the opposite side from the respective fitting recesses 36a to 36c approach the bottom surface 30 as the distance from each fitting recess 36a to 36c increases. It is an inclined surface 38 that is inclined in the direction. This makes it easier for each pair of protrusions 37a to 37c to climb over each of the support bars 20a to 20c when the carrying tool 3 is taken in and out of the rack 2, making it easier to take the carrying tool 3 in and out of the rack 2.

(Effect of storage system)
FIG. 8 shows the first receiving bar 20a, the second receiving bar 20b, the third receiving bar 20c, the first fitting part 35a, the second fitting part 35b when the carrying tool 3 is placed at a predetermined position P of the rack 2. and a side view showing a fitted state with a third fitting part 35c. FIG. 9 is a downward perspective view showing the fitted state shown in FIG. 8.

As shown in FIGS. 8 and 9, when the carrying tool 3 is placed at a predetermined position P of the rack 2, that is, the first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c are connected to the first fitting portion. 35a, when the carrying tool 3 is placed at a position where the second fitting part 35b and the third fitting part 35c face each other, each receiving bar 20a to 20c and each fitting part 35a to 35c fit into each other. . Thereby, the carrying tool 3 is stably placed on the rack 2.

FIG. 10 is a side view showing a state in which the carrying tool 3 is pulled out from the predetermined position P shown in FIG. 8 toward the front side. FIG. 11 is a side view showing a state in which the carrying tool 3 is further pulled out toward the front from the position shown in FIG. 10.

The width D2 of the second fitting recess 36b is smaller than the width d1 of the first receiving bar 20a. Therefore, as shown in FIG. 10, the second fitting recess 36b does not fit into the first receiving bar 20a. Further, the width D3 of the third fitting recess 36c is smaller than the width d1 of the first receiving bar 20a and the width d2 of the second receiving bar 20b. Therefore, as shown in FIGS. 10 and 11, the third fitting recess 36c does not fit into the first receiving bar 20a and the second receiving bar 20b. Therefore, in the storage system 1, the carrying tool 3 is less likely to get caught on the rack 2 when being put in and taken out, and the carrying tool 3 can be easily put in and taken out.

Here, when loading and unloading the carrying tool 3 from the rack 2, the carrying tool 3 is often moved in the loading/unloading direction while, for example, the front side of the carrying tool 3 is lifted. In this case, the bottom surface 30 of the transport tool 3 on the near side rises from the rack 2, and the bottom surface 30 on the back side slides on the rack 2. Therefore, at least the third fitting part 35c located at the innermost side is shaped so that it does not fit into the first receiving bar 20a and the second receiving bar 20b, thereby making it difficult for the transportation tool 3 to be caught on the rack 2 when loading or unloading. However, as in this embodiment, the second fitting part 35b is also shaped so that it does not fit into the first receiving bar 20a, so that the carrying tool 3 can be made less likely to be caught by the rack 2 when loading and unloading. .

(Effects of storage system)
As described above, the storage system 1 according to the present embodiment includes the rack 2 and the transportation tool 3 placed on the rack 2. The rack 2 has a first receiving bar 20a, a second receiving bar 20b, and a third receiving bar 20c, which are arranged at intervals from each other in the direction in which the carrying tool 3 is taken in and taken out. Moreover, the carrying tool 3 has a first fitting part 35a on its bottom surface 30 that fits into the first receiving bar 20a, the second receiving bar 20b, and the third receiving bar 20c when it is placed at a predetermined position P of the rack 2. , a second fitting part 35b and a third fitting part 35c. The third fitting part 35c located at the farthest side in the insertion/removal direction is fitted to the first receiving bar 20a and the second receiving bar 20b located on the front side in the inserting/removing direction than the third receiving bar 20c which is fitted at a predetermined position P. It has a shape that does not.

In the storage system 1, the third fitting part 35c located at the farthest side in the loading/unloading direction has a shape that does not fit into the first receiving bar 20a and the second receiving bar 20b located on the near side. Therefore, when the carrying tool 3 is put in and taken out, the third fitting part 35c located on the farthest side is unlikely to be caught by the first receiving bar 20a and the second receiving bar 20b located on the near side.

Therefore, according to the present embodiment, it is possible to realize a storage system 1 in which the transportation tool 3 is difficult to get caught on the rack 2 when taking it in and out, and the transportation tool 3 can be easily taken in and out.

In the present embodiment, the fitting recess is formed by a pair of protrusions protruding from the bottom surface of the carrying tool. However, the fitting recess may be formed by directly forming a recess in the bottom surface of the carrier.

In this embodiment, the rack may include a plate-shaped shelf board on which the transportation equipment is placed. In this case, what is necessary is just to form the pessimistic fitting part in the shelf board which fits into the fitting part arrange|positioned at the bottom surface of a carrying tool.

[Embodiment 2]
Other embodiments of the invention will be described below. For convenience of explanation, members having the same functions as the members described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

FIG. 12 is a side view showing the storage system 11 according to this embodiment. As shown in FIG. 12, in the storage system 11, the transportation tool 3 includes a first fitting protrusion (fitting part) 136a, a second fitting protrusion (fitting part) 136b, and a second fitting protrusion (fitting part) 136b that protrude from the bottom surface 30. It includes three fitting convex portions (fitting portions) 136c.

The widths D1 to D3 of the first fitting protrusion 136a, the second fitting protrusion 136b, and the third fitting protrusion 136c in the insertion/removal direction vary depending on the position from the front side to the back side in the insertion/removal direction. It's getting bigger step by step. That is, the width D1 of the first fitting protrusion 136a located furthest in the insertion/removal direction is the smallest, and the width D3 of the third fitting protrusion 136c located furthest in the insertion/removal direction is the largest. . Further, the width D2 of the second fitting protrusion 136b located between the first fitting protrusion 136a and the third fitting protrusion 136c is larger than the width D1 and smaller than the width D3. .

In addition, the rack 2 includes a first receiving bar (to be fitted part/bar) 120a, a second receiving bar (to be fitted part/bar) 120b, a third receiving bar (to be fitted part/bar) 120c, and a fourth receiving bar ( A fitted part/piece) 120d is arranged. In this embodiment, the distance between the first support beam 120a and the second support beam 120b, the distance between the second support beam 120b and the third support beam 120c, and the distance between the third support beam 120c and the fourth support beam 120d are set on the front side in the insertion/removal direction. The size gradually increases depending on the position from the to the back side.

In the storage system 11, the first fitting protrusion 136a, the second fitting protrusion 136b, and the third fitting protrusion are provided between the first receiving bar 120a, the second receiving bar 120b, the third receiving bar 120c, and the fourth receiving bar 120d. 136c is fitted. The storage system 11 also makes it difficult for the carrying tool 3 to get caught on the rack 2 when putting it in and taking it out, making it easier to take the carrying tool 3 in and out.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. are also included within the technical scope of the present invention.

1, 11 Storage system 2 Rack 3 Transport tool 20a First receiving crosspiece (mated part/crosspiece)
20b Second receiving pier (mated part/piece)
20c 3rd receiving crosspiece (mated part/crosspiece)
30 Bottom surface 35a First fitting part (fitting part)
35b Second fitting part (fitting part)
35c Third fitting part (fitting part)
36a First fitting recess (fitting recess)
36b Second fitting recess (fitting recess)
36c Third fitting recess (fitting recess)
37a First protrusion 37b Second protrusion 37c Third protrusion 38a First inclined surface 38b Second inclined surface 38c Third inclined surface 120a First receiving crosspiece (fitted part/crosspiece)
120b Second receiving crosspiece (mated part/crosspiece)
120c 3rd receiving crosspiece (mated part/crosspiece)
120d 4th receiving crosspiece (mated part/crosspiece)
136a First fitting convex portion (fitting recess)
136b Second fitting convex part (fitting recess)
136c Third fitting convex part (fitting recess)
D1, D2, D3 Width d1, d2, d3 Width P Predetermined position

Claims (7)

A storage system comprising a rack and a transportation tool placed on the rack,
The rack has a plurality of mating parts arranged at intervals in the direction of loading and unloading of the carrying tool,
The carrying tool has a plurality of fitting parts on its bottom surface that fit into the plurality of fitting parts when placed in a predetermined position of the rack,
The plurality of fitted parts are composed of a plurality of crosspieces each arranged in a direction substantially perpendicular to the insertion/removal direction,
The crosspiece located at the farthest side in the loading/unloading direction has a width smaller than the other crosspieces in the loading/unloading direction,
The fitting portion located at the farthest side in the insertion/removal direction has a shape that does not fit with the other crosspiece located on the front side in the insertion/removal direction than the crosspiece fitted at the predetermined position. storage system. According to claim 1, each of the plurality of fitting portions has a shape that does not fit with another of the crosspieces located closer to the front side in the insertion/removal direction than the crosspiece that is fitted at the predetermined position. Storage system as described. 3. The storage system according to claim 1 , wherein the width of the plurality of crosspieces decreases depending on the position from the front side to the back side in the loading/unloading direction. The storage system according to any one of claims 1 to 3, wherein the fitting part includes a fitting recess that is arranged on the bottom surface of the carrying tool and that sandwiches the crosspiece from both sides in the loading/unloading direction. . The fitting recess is formed between a pair of protrusions protruding from the bottom surface,
5. The storage system according to claim 4 , wherein the pair of protrusions located closest to the front in the loading/unloading direction protrude more from the bottom surface than the other pair of protrusions. Storage according to claim 5 , wherein the pair of protrusions have surfaces opposite to the fitting recess that are inclined in a direction that approaches the bottom surface as the distance from the fitting recess increases. system. A storage system comprising a rack and a transportation tool placed on the rack,
The rack has a plurality of mating parts arranged at intervals in the direction of loading and unloading of the carrying tool,
The carrying tool has a plurality of fitting parts on its bottom surface that fit into the plurality of fitting parts when placed in a predetermined position of the rack,
The plurality of fitted parts are composed of a plurality of crosspieces each arranged in a direction substantially perpendicular to the insertion/removal direction,
The fitting portion includes a plurality of fitting convex portions that protrude from the bottom surface of the carrying tool and fit between the crosspieces in the loading/unloading direction,
The width of the plurality of fitting protrusions in the insertion/removal direction increases in stages according to the position from the front side to the rear side in the insertion/removal direction,
The fitting convex portion located at the farthest side in the insertion/removal direction has a shape that does not fit between the other crosspieces located closer to this side in the insertion/removal direction than between the crosspieces that fit at the predetermined position. A storage system characterized by having:

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