JP7005839B2 - Cushioning body and packing body - Google Patents

Description

The present invention relates to a cushioning material used for packing a container for storing a substrate and a packing body provided with the cushioning material when the container for storing the substrate is transported.

Conventionally, a container body having an opening and accommodating a plurality of precision substrates made of wafers and a lid for closing the opening of the container body are provided, and the container body is provided with a support portion for supporting the substrate. Containers are used for transporting substrates and the like.

The packing body used for packing such a container is a packing box for storing a plurality of containers and a first buffering body interposed between the container and the inner lower part of the packing box to cushion the impact applied to the container. And a second buffer interposed between the container and the inner upper part of the packaging box, which cushions the impact applied to the container, are well known (see, for example, Patent Document 1).

Further, in the package described in Patent Document 1, the first cushioning body has a lower storage space for storing the lower portion of the container and a lower partition wall provided between the adjacent lower storage spaces, and the second cushioning body has a second. The cushioning body has an upper storage space for storing the upper part of the container and an upper partition wall provided between the adjacent upper storage spaces, and the adjacent containers stored in the lower storage space and the upper storage space are adjacent to each other. A predetermined interval is formed between them without contacting each other.

According to such a packaging body, if the impact applied to the container from the outside is less than a predetermined value, even if the distance between the adjacent containers stored in the packaging box is narrowed, the collision between the adjacent containers is avoided. However, when the impact applied to the container from the outside exceeds a predetermined value, the space between the adjacent containers housed in the packaging box disappears, and the adjacent containers collide with each other, so that the substrate comes off from the support portion. There is a problem.

In order to solve such a problem, for example, by increasing the size of the packaging box and the cushioning body included in the packaging body, the distance between the adjacent containers can be increased, whereby the adjacent containers can be increased from each other. It is generally considered to avoid collisions.

Japanese Patent Application Laid-Open No. 2002-160769

However, if the size of the packaging box and the cushioning body is increased, the material cost of the packaging body is increased and the transportation efficiency is lowered. Therefore, by devising only the cushioning body without increasing the size of the packaging box. , It is required to surely avoid the collision between the adjacent containers stored in the packaging box.

Therefore, the present invention has been made in view of such circumstances, and an object of the present invention is to provide a shock absorber and a packaging body capable of alleviating a larger impact applied to a container from the outside without enlarging the packaging box. do.

(1) One aspect of the present invention is a shock absorber interposed between the packaging box and the container, which stores a plurality of containers for storing substrates so as to be arranged along the longitudinal direction of the packaging box. Therefore, the shock absorber includes a lower shock absorber having a lower storage space for accommodating a lower portion of the container and a lower partition wall provided between adjacent lower storage spaces, and the container. The lower buffer and the upper shock absorber are provided with an upper storage space for accommodating the upper portion of the upper portion of the container and an upper shock absorber having an upper partition wall provided between the adjacent upper storage spaces. Can hold the container so that the adjacent containers come into contact with each other.
(2) In the embodiment of the above (1), the container is a box type, has a peripheral wall and a flange portion protruding outward from the peripheral wall, and the container has the lower buffer body and the upper buffer body. The dimension of the lower partition wall in the longitudinal direction may be set so that the flange portions are in contact with each other and the peripheral wall is in contact with the lower partition wall in a state of being sandwiched between the two.
(3) In the aspect of (2) above, the dimension of the lower partition wall in the longitudinal direction may be equal to the distance between the peripheral walls of the adjacent container.
(4) In any one of the above (1) to (3), the container is a top open box type container body having an opening on the upper surface, and is a peripheral wall and a flange protruding outward from the peripheral wall. A container body having a portion and a lid for closing the opening thereof are provided, and the container is sandwiched between the lower buffer and the upper buffer in a longitudinal direction of the upper partition wall. The dimensions may be set so that the flange portions are in contact with each other and the lid is in contact with the upper partition wall.
(5) In the aspect of (4) above, the dimension of the upper partition wall in the longitudinal direction may be equal to the distance between the lids of the adjacent containers.
(6) In any one of the above (1) to (5), the lower storage space and the upper storage space extend along the direction in which the substrate intersects the longitudinal direction. May be fitted.
(7) Another aspect of the present invention is an interposition between the packaging box for storing a plurality of containers for storing substrates so as to be arranged along the longitudinal direction of the packaging box, and the packaging box and the container. A packing body including a shock absorber, wherein the shock absorber is provided between a lower storage space for accommodating a lower portion of the container and an adjacent lower storage space. A lower shock absorber having a wall, an upper storage space for accommodating an upper portion of the container, and an upper shock absorber having an upper partition wall provided between adjacent upper storage spaces. The lower buffer and the upper buffer can hold the container so that the adjacent containers come into contact with each other.

According to the present invention, it is possible to provide a cushioning body and a packaging body capable of cushioning a larger impact applied to a container from the outside without enlarging the packaging box.

It is an exploded perspective view which shows the package body which concerns on embodiment of this invention. It is a top view of the lower shock absorber. It is a bottom view of the upper shock absorber. It is a schematic diagram which shows the state which a plurality of containers are packed in a packing body. It is an exploded perspective view of a container. It is a schematic perspective view which shows the drop direction of the drop test of the package containing a plurality of containers. It is a schematic plan view which shows the arrangement direction of the substrate housed in the container packed in the packing body of an Example. It is a schematic plan view which shows the arrangement direction of the substrate housed in the container packed in the packing body of the comparative example.

Hereinafter, examples of the package 1 and the package 1 according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The package 1 according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.
FIG. 1 is an exploded perspective view of a package 1 according to an embodiment of the present invention. FIG. 2 is a top view of the lower buffer body 3. FIG. 3 is a bottom view of the upper shock absorber 4. FIG. 4 is a schematic view showing a state in which a plurality of containers 2 are packed in the packing body 1. FIG. 5 is an exploded perspective view of the container 2. In the figure, the X direction extending along the X axis is the width direction, the Y direction extending along the Y axis is the longitudinal direction, and the Z direction extending along the Z axis is the vertical direction. do.

[Structure of packing body]
The packing body 1 according to the embodiment of the present invention is for packing the containers 2, and as shown in FIG. 1, is a packaging in which a plurality of (two) containers 2 are stored so as to be arranged along the longitudinal direction. A buffer 10 interposed between the box 5 and the packaging box 5 and the container 2 so as to relax the buffer applied to the container 2 is provided.

[Container structure]
Next, the container 2 will be described in detail with reference to FIG.
The container 2 is for accommodating a plurality of precision substrates W made of wafers, and as shown in FIG. 5, the container body 21 has a top open box type container body 21 having an opening 211 on the upper surface and the container body 21. A cassette 23 that is detachably stored and stores the substrate W in an aligned state at a predetermined pitch via a support groove 22 having a V-shaped cross section, and a lid 25 that closes the opening 211 via an annular packing 24. A retainer 26 that is detachably mounted on the inner surface of the lid 25 to position the substrate W is provided, and the cassette 23 is provided with an H bar 28 that connects one ends of a pair of support portions 27 in which the support grooves 22 are formed. Has been done. Here, the H bar 28 faces the surface of the substrate W supported by the support groove 22 opposite to the mirror surface. In the present embodiment, the substrate W is formed in a circular shape, but is not limited to this, and may be formed in a square shape, for example.

The container body 21 has a bottom wall (not shown), a peripheral wall 212, and a flange portion 213 protruding outward from the peripheral wall 212, and is surrounded by the flange portion 213 to form an opening portion 211.

(Packaging box)
As shown in FIG. 1, the packaging box 5 is formed into a size that can be stored by arranging two containers 2 along the longitudinal direction using paper or plastic cardboard, and the flap 51 has an open top. It is formed in a rectangular parallelepiped with a wrapping. Further, the packaging box 5 is formed of the same packaging box as the conventional packaging box used for transporting the container 2 (inner dimensions are, for example, 625 mm × 330 mm).

(Cushioner)
In the present embodiment, the cushioning body 10 is a lower cushioning body 3 interposed between the container 2 and the inner lower part of the packaging box 5, and an upper cushioning body 4 interposed between the container 2 and the inner upper part of the packaging box 5. It is formed of a foam (for example, expanded polystyrene, expanded polypropylene, etc.) that cushions the impact applied to the container 2 from the outside, but is not limited to this, for example, from the outside to the container 2. It may be formed by a sheet molded body (for example, a polypropylene sheet molded body) obtained by molding a sheet material to alleviate an applied impact.

As shown in FIG. 2, the lower shock absorber 3 has a long plate-shaped bottom plate 31 extending along the longitudinal direction, a lower peripheral wall 32 erected from the outer peripheral edge of the bottom plate 31, and a longitudinal direction of the bottom plate 31. A rectangular lower storage space having a lower partition wall 33 erected at the central position in the above, and a space surrounded by the lower peripheral wall 32 and the lower partition wall 33 for accommodating the lower portion of each container 2. It is 34. That is, the lower partition wall 33 is provided between the adjacent lower storage spaces 34.

The rectangular lower storage space 34 can be stored so as to fit the lower portion of the container 2 so that the substrates W stored in the container 2 are arranged at intervals in the longitudinal direction. In other words, the rectangular lower storage space 34 cannot be stored so as to fit the lower portion of the container 2 so that the substrates W stored in the container 2 are arranged at intervals in the width direction. That is, the lower storage space 34 fits the lower portion of the container 2 so that the substrates W stored in the container 2 are arranged at intervals in the longitudinal direction.

The lower peripheral wall 32 extending along the longitudinal direction is provided with a plurality of first spacers 321 protruding outward to alleviate the impact in the width direction, and the lower peripheral wall 32 extending along the width direction is provided with a plurality of first spacers 321. , A plurality of second spacers 322 are provided so as to project outward and alleviate the impact in the longitudinal direction. An opening 311 may be formed in a region corresponding to each lower storage space 34 of the bottom plate 31.

The dimension in the longitudinal direction of the second spacer 322 (for example, 33 mm) is formed to be larger than the dimension in the width direction of the first spacer 321 (for example, 17 mm). The plurality of first spacers 321 and the plurality of second spacers 322 are provided at positions corresponding to the corners of the rectangular lower storage space 34. In the present embodiment, the total number of the first spacer 321 and the second spacer 322 is 12, but the total number is not limited to 12, and may be, for example, 10.

The dimension L1 (for example, 622 mm) obtained by adding the dimension in the longitudinal direction of the bottom plate 31 and the dimension in the longitudinal direction of the second spacer 322 corresponds to the inner dimension (for example, 625 mm) in the longitudinal direction of the packaging box 5. .. Further, the dimension C1 (for example, 328 mm) obtained by adding the dimension in the width direction of the bottom plate 31 and the dimension in the width direction of the first spacer 321 corresponds to the inner dimension (for example, 330 mm) in the width direction of the packaging box 5. ing.

As shown in FIG. 3, the upper buffer 4 is erected from a long plate-shaped top plate 41 extending in the longitudinal direction and an outer peripheral edge of the top plate 41, similarly to the lower buffer 3. The upper peripheral wall 42 and the upper partition wall 43 erected at the center position in the longitudinal direction of the top plate 41 are provided, and the space surrounded by the upper peripheral wall 42 and the upper partition wall 43 is the upper portion of each container 2. It is a rectangular upper storage space 44 that stores the lid 25 so as to fit it. That is, the upper partition wall 43 is provided between the adjacent upper storage spaces 44.

Then, the rectangular upper storage space 44 can be stored so as to fit the lid 25 so that the substrates W stored in the container 2 are arranged at intervals in the longitudinal direction. In other words, the rectangular upper storage space 44 cannot be stored so as to fit the lid 25 so that the substrates W stored in the container 2 are arranged at intervals in the width direction. That is, the upper storage space 44 is fitted with the lid 25 so that the substrates W stored in the container 2 are arranged at intervals in the longitudinal direction.

The upper peripheral wall 42 extending along the longitudinal direction is provided with a plurality of third spacers 421 protruding outward to alleviate the impact in the width direction, and the upper peripheral wall 42 extending along the width direction is provided with a plurality of third spacers 421. , A plurality of fourth spacers 422 are provided so as to project outward and alleviate the impact in the longitudinal direction. An opening 411 may be formed in the region corresponding to each upper storage space 44 of the top plate 41.

The dimension in the longitudinal direction of the fourth spacer 422 (for example, 33 mm) is formed to be larger than the dimension in the width direction of the third spacer 421 (for example, 17 mm). Further, the plurality of third spacers 421 and the plurality of fourth spacers 422 are provided at positions corresponding to the corners of the rectangular upper storage space 44. In the present embodiment, the total number of the third spacer 421 and the fourth spacer 422 is 12, like the total number of the first spacer 321 and the second spacer 322, but is not limited to 12. For example, the number may be 10.

The dimension L2 (for example, 622 mm) obtained by adding the dimension in the longitudinal direction of the top plate 41 and the dimension in the longitudinal direction of the fourth spacer 422 corresponds to the inner dimension (for example, 625 mm) in the longitudinal direction of the packaging box 5. There is. Further, the dimension C2 (for example, 328 mm) obtained by adding the dimension in the width direction of the top plate 41 and the dimension in the width direction of the third spacer 421 corresponds to the inner dimension (for example, 330 mm) of the packaging box 5 in the width direction. is doing.

[Process of packing containers in packaging boxes]
Returning to FIG. 1, each container 2 is sandwiched between the lower cushioning body 3 and the upper cushioning body 4 so as to be housed in the lower storage space 34 and the upper storage space 44, and the lower cushioning body 3 and the upper cushioning body 4 are sandwiched. The container 2 is packed in the process of storing the two containers 2 sandwiched between the two containers 2 in the packaging box 5.

[Container packed in the package]
As shown in FIG. 4, in a state where the container 2 is packed in the packing body 1, the lower cushioning body 3 and the upper cushioning body 4 are placed in contact with each other so that the flange portions 213 of the adjacent containers 2 are in contact with each other. I'm holding it. Further, from the viewpoint of improving the cushioning performance, it is preferable that the contact between the flange portions 213 of the adjacent containers 2 is a line contact in the cross-sectional view in the longitudinal direction.

In the present embodiment, the lower peripheral wall 32 and the upper peripheral wall 42 are formed so as to be vertically separated from each other in a state where the lower cushioning body 3 and the upper cushioning body 4 sandwich the container 2, but the present embodiment is limited to this. Instead, for example, they may be formed to be in contact with each other.

Then, in order to realize contact between the flange portions 213 of the adjacent containers 2 stored in the lower storage space 34 and the upper storage space 44, the container 2 lowerly stores the dimension D1 in the longitudinal direction of the lower partition wall 33. While setting so that the flange portions 213 are in contact with each other and the peripheral wall 212 is in contact with the lower partition wall 33 in the state of being stored in the space 34 and the upper storage space 44, the dimension D2 in the longitudinal direction of the upper partition wall 43 is set. It is necessary to set so that the flange portions 213 are in contact with each other and the lid 25 is in contact with the upper partition wall 43 in a state where the container 2 is stored in the lower storage space 34 and the upper storage space 44.

That is, the dimension D1 in the longitudinal direction of the lower partition wall 33 is equal to the distance between the peripheral walls 212 of the adjacent containers 2 housed in the lower storage space 34 and the upper storage space 44, and the upper partition wall 43 is in the longitudinal direction. Dimension D2 in is equal to the distance between the lids 25 of the adjacent containers 2 housed in the lower storage space 34 and the upper storage space 44.

[Effect of embodiment]
According to the packaging body 1 of the present embodiment configured as described above, the packaging box 5 for storing the plurality of substrates W storage containers 2 so as to be arranged along the longitudinal direction of the packaging box 5 and the packaging box 5 A shock absorber 10 interposed between the 5 and the container 2 is provided, and the shock absorber 10 is adjacent to a lower storage space 34 for accommodating a lower portion of the container 2 so as to be fitted. Between the lower shock absorber 3 having the lower partition wall 33 provided between the storage spaces 34, the upper storage space 44 for storing the lid 25 of the container 2 so as to fit, and the adjacent upper storage space 44. The upper buffer 4 having the upper partition wall 43 provided is provided, and the lower buffer 3 and the upper buffer 4 can sandwich the container 2 so that the adjacent containers 2 come into contact with each other. It is possible to alleviate a larger impact applied to the container 2 from the outside without increasing the size of the packaging box 5.

Specifically, since the flange portions 213 of the adjacent containers 2 are in contact with each other, even if an impact is applied from the outside, the adjacent containers 2 are united and receive the impact, so that the adjacent containers 2 are in contact with each other. It is possible to reduce that the substrate W housed in the container 2 comes off from the support groove 22 due to the collision between the containers 2 without causing the collision of the containers 2, thereby improving the cushioning property of the package 1. Can be improved.

Further, according to the packing body 1 of the present embodiment, the lower partition wall 33 and the upper partition wall 43 are in the longitudinal direction as compared with the conventional shock absorber in which the adjacent containers 2 housed in the packing box 5 are spaced from each other. The dimensions D1 and D2 in the above can be reduced, and as described above, since the packaging box 5 is formed of the same packaging box as the conventional packaging box used for transporting the container 2, it can be used as a conventional shock absorber. In comparison, the distance B between the container 2 and the packaging box 5 in the longitudinal direction can be increased, whereby a larger impact applied to the container 2 from the outside can be mitigated.

Further, according to the packing body 1 of the present embodiment, the two containers 2 are packed in the packing body 1 so as to extend along the direction in which the substrate W intersects (orthogonically) the longitudinal direction. When an impact in the longitudinal direction is applied from the outside, the substrate W receives an impact in the longitudinal direction as compared with a packing body in which the container 2 is packed so that the substrate W extends along a direction intersecting (orthogonal) with the width direction. It is difficult to receive and is difficult to come off from the support groove 22 of the support portion 27.

Although the shock absorber of the present invention has been described above based on the specific embodiment, the present invention is not limited to the above-mentioned specific embodiment, and the present invention is within the technical scope of the present invention. It includes various modifications and improvements to the extent that the object of the invention is achieved, which is clear to those skilled in the art from the description of the scope of claims.

[Modification example]
In the above embodiment, the packing body 1 is formed so that the two containers 2 can be stored in the packaging box 5, but the present invention is not limited to this, and for example, the three containers 2 are stored in the packaging box 5. It may be formed so that it can be stored. In this case, three lower storage spaces 34 and three upper storage spaces 44 are formed, and two lower partition walls 33 and two upper partition walls 43 are formed, respectively.

Further, in the above embodiment, the flange portions 213 of the adjacent containers 2 stored in the lower storage space 34 and the upper storage space 44 are in direct contact with each other, but the present invention is not limited to this, for example. , May be indirectly contacted via a packaging bag or the like that wraps each container 2.

Next, with reference to FIG. 6, examples of the shock absorber 10 sandwiching the container 2 according to the present invention and the packing body 1 provided with the shock absorber 10 will be described together with a comparative example.
FIG. 6 is a schematic perspective view showing a drop direction of a drop test of a package 1 in which a plurality of containers 2 are packed. FIG. 7 is a schematic plan view showing the arrangement direction of the substrate W housed in the container 2 packed in the packing body 1 of the embodiment. FIG. 8 is a schematic plan view showing the arrangement direction of the substrate W housed in the container 2 packed in the packing body of the comparative example.

[Drop test]
First, a drop test of an example and a comparative example of the package 1 according to the present invention will be described with reference to FIG.
Taking as an example a packing body 1 in which two containers 2 containing 25 substrates W are packed, Japanese Industrial Standards [Drop test method for packaged cargo and container (JIS Z 0202)], [Drop test for packaged cargo (JIS Z 0202)] According to JIS Z 0200)], the substrate W was dropped onto the concrete floor from the positions of 40 cm, 50 cm, and 100 cm above the ground in the falling directions of 11 shown in FIG. 6, respectively, and it was confirmed whether the substrate W was detached from the support groove 22. The results are summarized in Table 1. In this embodiment, as shown in FIG. 7, the container 2 is packed in the packing body 1 so that the substrates W are arranged at intervals in the longitudinal direction. In this state, the H bar 28 extends along a direction that intersects (orthogonally) the longitudinal direction.

On the other hand, the package described in Patent Document 1 in which two containers 2 containing 25 substrates W are packed is used as a comparative example, and the height above the ground is shown in the drop direction shown in FIG. 6 as in the embodiment. It was dropped onto the concrete floor from the positions of 40 cm and 50 cm, and it was confirmed whether the substrate W was detached from the support groove 22, and the results are summarized in Table 2. In this comparative example, as shown in FIG. 8, the container 2 is packed in the packing body 1 so that the substrates W are arranged at intervals in the width direction. In this state, the H bar 28 extends along a direction that intersects (orthogonally) the width direction.

〇：異常なし ×：基板Ｗが支持溝２２から外れた

〇: No abnormality ×: Substrate W is detached from the support groove 22

〇：異常なし ×：基板Ｗが支持溝２２から外れた

〇: No abnormality ×: Substrate W is detached from the support groove 22

As is clear from the results of Tables 1 and 2, depending on the cushioning body 10 of the embodiment according to the present invention and the packing body 1 provided with the buffer body 10, only the impact of dropping from an altitude of 40 cm and an altitude of 50 cm in all falling directions. However, while the impact caused by dropping from an altitude of 100 cm can be mitigated, the impact caused by dropping from an altitude of 40 cm can be mitigated in all falling directions depending on the shock absorber of the comparative example and the packaging body provided with the buffer, but the side surface. In the falling direction of, the impact caused by dropping from an altitude of 50 cm or more cannot be mitigated. Therefore, it is proved that the buffer 10 of the embodiment according to the present invention and the package 1 provided with the buffer 10 can obtain excellent cushioning properties as compared with the buffer of the comparative example and the package including the buffer.

[Vibration test]
Next, the vibration test of the embodiment of the package 1 according to the present invention will be described.
A packaging body 1 containing two containers 2 containing 25 substrates W is placed on a vibration tester (for example, IDEX: BF-70UA-ET), and a vibration test is performed under the following vibration test conditions. When I went
(Vibration test conditions)
Frequency: Sweep to Sweep 5-55-5Hz.
Amplitude: 1.5 mm (vertical direction)
Sweep time: 60s
Cycle: 10cycle
The substrate W housed in the two containers 2 did not rotate. However, rotation of 5 mm or less (rotation of about 2 ° or less) is regarded as no rotation.

Therefore, the shock absorber 10 of the embodiment according to the present invention and the package 1 provided with the shock absorber 10 can obtain excellent vibration resistance in addition to excellent cushioning property.

1 Package 2 Container 21 Container body 211 Opening, 212 Peripheral wall, 213 Flange part 22 Support groove 23 Cassette 24 Packing 25 Lid 26 Retainer 27 Support part 28 H bar 10 Buffer 3 Lower buffer 31 Bottom plate, 32 Lower peripheral wall, 33 Lower partition wall, 34 Lower storage space 311 opening, 321 1st spacer, 322 2nd spacer 4 Upper shock absorber 41 Top plate, 42 Upper peripheral wall, 43 Upper partition wall, 44 Upper storage space 411 opening, 421 3rd spacer, 422 4th spacer 5 Packaging box 51 Flap W board

Claims (7)

A buffer interposed between the packaging box and the container that stores a plurality of containers for storing substrates so as to be arranged along the longitudinal direction of the packaging box.
The buffer is
A lower buffer having a lower storage space for accommodating a lower portion of the container and a lower partition wall provided between adjacent lower storage spaces.
It comprises an upper storage space for accommodating an upper portion of the container and an upper shock absorber having an upper partition wall provided between adjacent upper storage spaces.
The lower cushion and the upper cushion are buffers characterized in that the containers can be sandwiched so that adjacent containers are in contact with each other. The container is of the box type and has a peripheral wall and a flange portion protruding outward from the peripheral wall.
In a state where the container is sandwiched between the lower buffer and the upper buffer, the dimensions of the lower partition wall in the longitudinal direction are such that the flange portions are in contact with each other and the peripheral wall is the lower partition wall. The buffer according to claim 1, wherein the buffer is set to be in contact with each other. The buffer according to claim 2, wherein the lower partition wall has a dimension in the longitudinal direction equal to the distance between the peripheral walls of the adjacent container. The container is a top open box type container body having an opening on the upper surface, and includes a peripheral wall, a container body having a flange portion protruding outward from the peripheral wall, and a lid for closing the opening.
In a state where the container is sandwiched between the lower buffer and the upper buffer, the dimensions of the upper partition wall in the longitudinal direction are such that the flange portions are in contact with each other and the lid is the upper partition wall. The buffer according to any one of claims 1 to 3, characterized in that it is set to contact with. The buffer according to claim 4, wherein the upper partition wall has a dimension in the longitudinal direction equal to the distance between the lids of the adjacent containers. One of claims 1 to 5, wherein the lower storage space and the upper storage space are fitted with the container so that the substrate extends along a direction intersecting the longitudinal direction. The buffer described in. A packaging body including the packaging box for storing a plurality of containers for storing substrates so as to be arranged along the longitudinal direction of the packaging box, and a shock absorber interposed between the packaging box and the container. hand,
The buffer is
A lower buffer having a lower storage space for accommodating a lower portion of the container and a lower partition wall provided between adjacent lower storage spaces.
It comprises an upper storage space for accommodating an upper portion of the container and an upper shock absorber having an upper partition wall provided between adjacent upper storage spaces.
The lower cushioning body and the upper cushioning body are packaged bodies in which the containers can be sandwiched so that the adjacent containers are in contact with each other.

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