JP2000128172A - Carrier container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrier container wherein a larger housing space can be ensured for a container body, damages can be prevented from occurring to fishery products and the like housed in the container body and deformation and breakage resulting from a load applied from above can be prevented from occurring to the container bodies when stacked up in tiers while stability in stacking up is maintained with a large-scale horizontal slippage in positions between the upside and downside restrained. SOLUTION: A carrier container is constructed in a structure wherein surrounding surface flanges 15 and 16 extending in the transverse direction are provided at the upper part and lower part of a container body 11 formed in a bottomed square boxlike shape, and the lower surrounding surface flange 16 is engaged with the upper surrounding surface flange 15 when the container bodies 11 are stacked up in tiers with the underside of a bottom wall 13 of the container body 11 placed on a position the same as or upper than the underside of the lower surrounding surface flange 16. Furthermore, a bottom wall indent 24 is provided at the lower part of the bottom wall 13, and while a side groove 23 is provided at the underside of the lower surrounding surface flange 16, a protuberant part 18 is provided at the upside of the upper surrounding surface flange 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport container capable of accommodating, for example, fish and shellfish and configured to be vertically stacked.

[0002]

2. Description of the Related Art Conventionally, this type of transport container is integrally formed in a rectangular box shape with a bottom made of a synthetic resin, and a laterally continuous peripheral flange is formed at an upper portion and a lower portion of the container body. . The bottom plate of the container body is formed so as to be located below the lower end surface of the lower peripheral flange. Further, a bottom rib is formed on the lower surface of the transport container so as to form a square ring by slightly projecting a peripheral edge of the bottom plate downward. Then, the fish and shellfish are accommodated in the accommodation space inside the container body.

When vertically stacking a plurality of transport containers, the bottom of the upper transport container is inserted into the upper opening of the lower transport container, and the lower peripheral flange of the upper transport container is moved downward. Engaged with the upper peripheral flange of the transport container. Thus, by positioning the upper transport container relative to the lower transport container,
A plurality of transport containers are stacked up and down while a predetermined storage space is held in the lower transport container.

[0004]

However, in the conventional transport container, when the container bodies are stacked one on top of the other, the bottom of the container body located at the top is located at the bottom of the container body located at the bottom. Since a part of the container is occupied, the accommodation space for the transport container has been reduced. Furthermore, when stacking transport containers full of seafood vertically, the bottom plate bottom surface of the upper container body abuts on the seafood housed in the lower container body, and the load from above is reduced. The fish and shellfish could be damaged.

When the container bodies are stacked up and down,
The bottom rib of the lowermost transport container adds the total weight of the plurality of transport containers and their contents. Since the width of the bottom rib is formed short and the ground contact area is small, the side wall of the container body is twisted laterally by the load applied from above with the bottom rib lower surface as a center, and the transport container may be damaged. Was.

There is also known a transport container in which the bottom surface of the container body is set at the same position as the lower surface of the lower peripheral flange. In the case of this configuration, the lower end surface of the lower peripheral flange comes into contact with the ground, and the grounding area is increased, thereby preventing the damage of the transport container.

However, when the transport containers are stacked one on top of the other and the upper peripheral flange and the lower peripheral flange engage, the surface of each peripheral flange is slippery because the transport container is made of synthetic resin. The frictional force between the two peripheral flanges is weakened. For this reason, when the transport containers are stacked, there is a problem that the positions are largely shifted in the horizontal direction.

The present invention has been made by focusing on the problems existing in the prior art as described above. It is an object of the present invention to provide a transport container capable of securing a larger accommodation space for a container main body and making the stored fish and shellfish hard to be damaged. For other purposes, when the container body is stacked up and down,
It is an object of the present invention to provide a transport container that can prevent deformation and breakage due to a load applied from above, and can restrict a large horizontal displacement between upper and lower sides and stabilize stacking.

[0009]

In order to achieve the above object, a transport container according to claim 1 is connected to an upper portion and a lower portion of a container body formed in a rectangular box shape with a bottom in a lateral direction. A peripheral flange is provided, and when the container bodies are stacked, the lower peripheral flange is engaged with the upper peripheral flange, and the lower surface of the bottom wall of the container body is located at or above the lower surface of the lower peripheral flange. And the effective height in the container body is configured such that the thickness of the bottom wall is subtracted from the total height, and a reinforcing concave / convex portion is provided at a lower portion of the bottom wall. .

[0010] The transport container according to the second aspect is the first aspect.
On the upper surface of the upper peripheral flange described in the above, a projecting portion is provided, and on the lower surface of the lower peripheral flange, when the container body is vertically stacked, a concave portion is provided so as to straddle the projecting portion. is there.

[0011] The transportation container according to the third aspect is the second aspect.
The reinforcing uneven portion described in (1) is configured to engage with the projecting portion. According to a fourth aspect of the present invention, there is provided a transport container in which the protruding portion according to the first or second aspect is provided at least at a corner of the container body.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 and 2, the container main body 11 of the transport container is integrally formed in a rectangular box shape with a bottom and an open top made of synthetic resin, and fish and shellfish are stored in a storage space therein. It has become. In addition, the side walls 1 facing each other in the length direction of the container body 11
A plurality of insertion holes 14 are provided at predetermined intervals in the second and bottom walls 13 so that water or the like that accumulates in the housing space can be discharged.

The upper peripheral flange 15 is formed continuously at the upper end of the container body 11 so as to surround the outer peripheral surface thereof in the lateral direction. Also, the lower peripheral flange 16
In the lower part of the container body 11, an inclined surface 17 that is slightly downwardly inclined so as to surround the outer peripheral surface thereof is formed continuously in the lateral direction, and curves downward. It is the same height as the lower end of.
That is, the lower surface of the lower peripheral flange 16 is formed to be the same height as the lower surface of the bottom wall 13 of the container body 11.

As shown in FIG. 1, when the container bodies 11 are vertically stacked, the lower peripheral flange 16 of the container body 11 located above is placed on the upper peripheral flange 15 of the container body 11 located below. Is placed. At this time, since the lower surface of the lower peripheral flange 16 of the upper container body 11 is at the same height as the lower surface of the bottom wall 13, the lower container body 11 is moved from the entire height H of the container body 11 to the bottom wall. The seafood can be stacked and accommodated over the entire effective height h from which the thickness a of 13 is subtracted. In addition, the upper surface of the lower peripheral flange 16 is an inclined surface 17 that is inclined obliquely downward from the base end side toward the distal end side, so that water or the like is prevented from accumulating in this portion during washing or the like. Therefore, the cleaning property is good.

As shown in FIGS. 1 and 2, the projecting portions 18 have a truncated quadrangular pyramid shape, and a plurality of projecting portions 18 are provided on the upper surface of the four corner portions of the upper peripheral flange 15. The side reinforcing ribs 19
It is formed so as to be located between adjacent projecting portions 18.

As shown in FIG. 3, the bottom wall 1 of the container body 11 is
3, a plurality of bottom reinforcing ribs 20 are provided on the container body 11.
Are provided so as to extend in the length direction and the width direction.
In particular, the side reinforcing ribs 1 in the vicinity of some protruding portions 18
9 and the bottom reinforcing rib 20 are formed so as to extend continuously by a bridging rib 21. Each of these ribs 19,
The reference numerals 20 and 21 receive a load such as torsion applied to the container body 11 and prevent deformation thereof. Corner ribs 22 project from the lower surfaces of the four corners of the lower peripheral flange 16 so as to connect the lower peripheral flange 16 and the lower edge of the side wall 12.

The side recess 23 is surrounded by the lower peripheral flange 16, the lower edge of the side wall 12, the bridging rib 21, and the corner rib 22 on the lower surface of the lower peripheral flange 16, and is recessed by a predetermined depth. ing. The bottom wall recess 24 is formed on the lower surface of the bottom wall 13 of the container body 11 so as to be surrounded by the plurality of bottom reinforcing ribs 20 and the lower edge of the side wall 12.

As shown in FIG. 1 and FIG.
5 protrudes diagonally on the outer peripheral surface of the corner portion of the container body 11 so as to extend in the height direction of the container body 11. The side wall rib 26 is provided between the upper peripheral flange 15 and the lower peripheral flange 16 so as to protrude continuously in the lateral direction so as to surround the outer peripheral surface of the container body 11. The plurality of side reinforcing ribs 19 protrude from the outer peripheral surface of the side wall 12 of the container main body 11 from the upper peripheral flange 15 to the lower peripheral flange 16 so as to extend in the height direction of the container main body 11.

As shown in FIG. 4, a grip portion 27 is provided at the center of the side wall 12 facing the width direction of the container body 11, and a scribe rod hole 28 penetrates above the grip portion 27. Have been. The grip portion 27 is formed by making the lower surface of the side wall rib 26 uneven, and by moving the grip portion 27 by hand, the transport container can be moved and transported. The scribe bar hole 28 is used when the container body 11 is moved and transported so as to be shifted. At this time, after the container main body 11 engages the hook-shaped hooking member attached to the tip of the rod-shaped scribe not shown in the scribe rod hole 28, the container main body 11 moves in the direction of moving the container main body 11. Movement and transportation are performed by pulling the scribe.

As shown in FIGS. 5 and 6, when the lower peripheral flange 16 is arranged on the upper peripheral flange 15 so that the upper and lower sides of the container main body 11 are aligned, the side concave ridges 23 are provided at the respective projecting portions. The straddle 18 is straddled, and the projecting portion 18 is accommodated inside the strut 18. That is, in FIG. 5, the plurality of projecting portions 18 of the lower container body 11 are loosely fitted in the corresponding side recesses 23 of the upper container body 11. When the container body 11 is to be largely displaced in the horizontal direction, the movement of the container body 11 is restricted by engaging the side surface of each projecting portion 18 with the inner wall surface of each side recess 23. ing.

On the other hand, as shown in FIG. 7, when the container main bodies 11 are stacked one above the other, and when the container main bodies 11 are arranged without being aligned vertically, each side recess 23 and bottom wall recess 24 The protruding portion 18 is straddled, and the protruding portion 18
Is to be accommodated. That is, the plurality of protruding portions 18 located on the side walls 12 of the container body 11 located below located in the longitudinal direction are loosely fitted into the corresponding side recesses 23 of the container body 11 located above. It has become. Further, the projecting portions 18 located on the opposite side walls 12 in the width direction of the container body 11 located below are loosely fitted into the corresponding bottom wall recesses 24 of the container body 11 located above. I have. When the container main body 11 is to be largely displaced in the horizontal direction, the movement is performed by engaging the side surface of each projecting portion 18 with the inner side wall of each side groove 23 or the bottom wall concave portion 24. It is being regulated.

The transport container of the embodiment is transported in a state in which fish and the like are stored in the internal storage space. When stored in a warehouse or the like, the plurality of transport containers are stacked up and down.

As shown in FIG. 1, when the transport containers are stacked one above the other, first, the lower peripheral flange 16 of the upper transport container is attached to the upper peripheral flange 15 of the lower transport container. The lower peripheral flange 16 is placed on the upper peripheral flange 15 while being aligned. At this time,
The protruding portion 18 of the upper peripheral flange 15 is loosely fitted into each side recess 23 of the lower peripheral flange 16. Further, by repeating the same operation a plurality of times, the transport containers are sequentially stacked.

At this time, the effective height h of the container body 11 is obtained by subtracting the thickness a of the bottom wall 13 from the total height H.
The volume of the container body 11 is a value obtained by multiplying the distance between the opposed side walls 12 in the length direction, the distance between the opposed side walls 12 in the width direction, and the effective height h. Then, a space corresponding to this volume is a storage space for the container body 11.

When the transport containers are stacked up and down, the upper peripheral flange 1 of the container body 11 located below
There is a case where the lower peripheral flange 16 of the container body 11 located above the container body 5 is slightly shifted laterally.
In this case, since the side surface of the projecting portion 18 is inclined, the lower surface of the lower peripheral flange 16 is guided by the projecting portion 18 to the upper surface of the upper peripheral flange 15.

In a state where a plurality of transport containers are stacked and a force such as vibration or impact is applied and a large displacement is to be caused in the horizontal direction, the lower peripheral flange 16 has a plurality of side recesses 23 in each side groove 23. Inner side wall of the side groove 23 and the projecting portion 1
8 are engaged. The engagement of the two restricts the movement of the lower peripheral flange 16 with respect to the upper peripheral flange 15, and prevents a large horizontal displacement between the upper and lower transport containers.

On the other hand, as shown in FIG. 8, a plurality of transport containers can be stacked in a so-called five-package manner. The lower five transport containers shown by solid lines in FIG. 8 are first arranged such that the two transport containers extend in the longitudinal direction. In order for the two transport containers to extend in the width direction of the two transport containers,
The two containers are arranged side by side in contact with the sides of the containers. Then, as shown by the two-dot chain line in FIG. 8, the five transport containers located above are stacked while being rotated by 180 ° with respect to the five transport containers located below. By repeating this operation a plurality of times, five transport containers are stacked in a required number of stages in a state of five containers.

The effects exerted by the above embodiment will be described below. The transport container according to the embodiment includes a bottom wall 13 of the container body 11.
Is configured to be positioned at the same height as the lower surface of the lower peripheral flange 16, so that when the container bodies 11 are stacked up and down, the effective height h of the container body 11 located below is It is obtained by subtracting the thickness a of the bottom wall 13 from the total height H. For this reason, the container body 11 located below
Can secure a larger accommodation space, can accommodate more fish and shellfish, and can prevent them from being damaged. In addition, since the height at which the fish and shellfish can be stored without being damaged can be seen at a glance as the position of the upper peripheral flange 15, the efficiency of the storing operation can be further enhanced.

The transport container of the embodiment is a container body 1
1 A lower peripheral flange 16 surrounding the lower outer peripheral surface.
The lower peripheral flange 16 is configured to receive a load applied from above. For this reason,
When the transport containers are stacked up and down, deformation and breakage due to a load applied from above can be prevented. further,
Since the lower surface of the lower peripheral flange 16 is configured to engage with the upper surface of the upper peripheral flange 15, when the transport containers are stacked so as to be vertically aligned, they are added to the transport container disposed above. The load can be received by the surface, and the deformation and breakage of the container body 11 can be more effectively prevented.

The transport container of the embodiment is a container body 1
1, a bottom reinforcing rib 20, a bridging rib 2
1 and the corner ribs 22, the bottom wall recess 24 and the side recess 2 of the container body 11 located above are formed.
3 is recessed, and the projecting portion 1 of the container body 11 located below
8. Therefore, when the transport containers are stacked and arranged so as to be vertically aligned, the side recesses 23 are securely engaged with the protruding portions 18 to regulate a large horizontal displacement between the upper and lower sides and stabilize the stacking. In addition, it is not necessary to finely position them, and workability can be improved.

When the transport containers are stacked one above the other and are arranged without aligning the container body 11 vertically, the bottom wall recess 24 and the side recessed stripes of the container body 11 located above are arranged. 23 at least one recessed part,
It is designed to engage with the projecting portion 18 of the container body 11 located below. For this reason, a large horizontal displacement between the top and the bottom can be restricted, and the stacking can be stabilized. In particular, when stacking in a five-piece arrangement, the stacking can be further stabilized.

According to the transport container of the embodiment, since the container body 11 is formed of a synthetic resin, the production is easy and the strength of the container body 11 when the transport containers are stacked up and down is maintained. be able to. Furthermore, since the space between the surface of the upper peripheral flange 15 and the surface of the lower peripheral flange 16 slides appropriately, the carrying operation can be easily performed.

According to the transport container of the embodiment, the upper surface of the lower peripheral flange 16 is the inclined surface 17 which is inclined obliquely downward from the base end toward the distal end. For this reason, it is possible to prevent water and the like from accumulating in this portion at the time of washing and the like, to maintain the hygiene of the transport container, and to further improve the strength of the lower peripheral flange 16.

According to the transport container of the embodiment, the corner rib 25 and the side reinforcing rib 1 are provided on the outer surface of the container body 11.
9, since the bottom reinforcing ribs 20 and the side wall ribs 26 are protruded, deformation and breakage of the container main body 11 due to a force such as torsion can be effectively prevented.

According to the transport container of the embodiment, the side reinforcing ribs 19 and the bottom reinforcing ribs 20 at positions near some of the projecting portions 18 are formed so as to extend continuously by the bridging ribs 21. I have. For this reason, a load from above can be received by both the reinforcing ribs 19 and 20 and the bridging rib 21 as a whole, thereby improving the strength of the transport container and further effectively preventing deformation and breakage of the container body 11 due to a force such as twisting. Can be prevented.

According to the transport container of the embodiment, since the projecting portion 18 is formed in a truncated pyramid shape, the side surface of the projecting portion 18 is inclined. For this reason, even when the lower peripheral flange 16 of the upper container body 11 is placed on the upper peripheral flange 15 of the lower container body 11 with a slight shift, the side surface of the projecting portion 18 is also provided. Thereby, the lower peripheral flange 16 can be guided to a predetermined position.

According to the transport container of the embodiment, a plurality of the projecting portions 18 are provided on the upper surface of the upper peripheral flange 15. For this reason, when the transport containers are stacked, even if they are slightly displaced vertically, at least one of them is loosely fitted in the bottom wall recess 24 or the side recess 23, so that the horizontal Large displacement can be effectively regulated.

According to the transport container of the embodiment, the projecting portions 18 are provided at the four corners of the container body 11 so that even when the side wall 12 is curved outward due to full loading of the fish and shellfish, Since the corner portion 11 does not significantly deform, the positional relationship between the protruding portion 18 and the side recess 23 is substantially maintained. Therefore, even in such a case, the transport containers can be reliably stacked up and down, and a large displacement in the horizontal direction can be restricted. Furthermore, since the projecting portion 18 is formed at the corner portion, even if the synthetic resin shrinks due to molding conditions and warpage or waving occurs, deformation can be suppressed as much as possible.

The present embodiment can be embodied with the following modifications. In the transport container of the present embodiment, the lower surface of the bottom wall 13 of the container body 11, that is, the lower surface of the bottom reinforcing rib 20 is arranged at a position higher than the lower surface of the lower peripheral flange 16.

In the transport container of the present embodiment, the projecting portion 18 is formed on the entire upper surface of the upper peripheral flange 15. In this configuration, when the transport containers are stacked so as to be vertically aligned, deformation of the container body 11 due to twisting or the like of the container body 11 full of fish and shellfish is prevented from being deformed by the side groove of the container body 11 located above. 23 can be received through the protruding portion 18, so that the strength of the transport container can be further increased.

In the transport container of the present embodiment, the projecting portion 18 is formed in a hemispherical shape, a frustum shape, or a ridge. In the transport container of the present embodiment, bar code-like or hemispherical minute anti-slip projections are formed on the upper surface of the upper peripheral flange 15.

With this configuration, when the transport containers are stacked one on top of the other, it is possible to regulate not only a large positional deviation in the horizontal direction but also a small positional deviation, thereby further stabilizing the stacking.

In the transport container of the present embodiment, the inclined surface 17 of the lower peripheral flange 16 is changed to a horizontal plane. For example, as shown in FIG.
Are formed continuously in the horizontal direction so as to surround the outer peripheral surface of the container body 11, and a plurality of circular holes 29 are formed as recesses in the lower peripheral flange 16. And
The projecting portions 18 are formed as a plurality of columnar shapes corresponding to the shape of the circular holes 29. When the container bodies 11 are stacked so as to be vertically aligned, the projecting portions 18 are formed in the circular holes 29.
To engage the two. At this time, it is preferable to provide a gap of a predetermined size between the column forming the projecting portion 18 and the circular hole 29.

With such a configuration, the configuration of the transport container can be simplified. When the recessed portion is formed as a circular hole 29 and the projecting portion 18 is formed as a column, the engagement between the circular holes 29 and the projecting portion 18 ensures a large horizontal displacement. In addition to being able to prevent, water and the like that accumulate on the upper surface of the lower peripheral flange 16 can be discharged from the circular hole 29.

In the transport container of the present embodiment, the insertion hole 14 is omitted. In the transport container according to the present embodiment, the articles to be stored are not limited to fish and shellfish, and for example, bread, vegetables, parts of machine tools, and the like.

Further, a technical idea which can be grasped from the embodiment will be described below. The transport container according to any one of claims 1 to 4, wherein the lower peripheral flange is configured to project with substantially the same width as the upper peripheral flange.

With this configuration, it is possible to reliably receive a load applied from above when stacked vertically. The transport container according to claim 3, wherein the height of the projecting portion is lower than the depths of the concave portion and the reinforcing concave / convex portion.

In such a configuration, since the projecting portion, the concave portion and the reinforcing concave and convex portion can be securely engaged with each other, it is possible to reliably restrict a large horizontal displacement between the upper and lower sides of the transport container. Can be.

The transport container according to any one of claims 2 to 4, wherein a reinforcing rib is provided on at least a side wall of the container body at a position near the projecting portion or the concave portion. With such a configuration, deformation and breakage of the container body due to a force such as torsion can be more effectively prevented.

[0050] A plurality of ribs are provided on the outer peripheral surface of the container body so as to have an intersecting portion.
The transport container according to any one of the above. With such a configuration, deformation and breakage of the container body due to a force such as torsion can be more effectively prevented.

In this specification, the term "rib" means a concept including a curved one and a thick one in addition to a general concept of a rib.

[0052]

The present invention is configured as described above, and has the following effects. According to the invention of the transport container according to the first aspect, it is possible to secure a larger accommodation space for the container main body and to make it difficult to damage the fish and shellfish to be accommodated. Furthermore, when the container bodies are stacked vertically, deformation and breakage due to a load applied from above can be prevented, and a large horizontal displacement between the upper and lower sides can be regulated, and the stacking can be stabilized.

According to the second aspect of the present invention, in addition to the effects of the first aspect, when the container bodies are stacked up and down, a large horizontal displacement between the upper and lower sides can be ensured. To stabilize the stacking.

According to the invention of the transportation container according to the third aspect, in addition to the effect of the invention according to the second aspect, when the container bodies are stacked up and down, a large horizontal displacement between the upper and lower sides is further reduced. It is possible to reliably regulate and further stabilize the stacking.

According to the invention of the transportation container according to the fourth aspect, in addition to the effect of the invention according to the second or third aspect,
Even when the side wall of the container body is swelled due to the fish and the like accommodated therein, it is possible to reliably stack the container up and down, and it is possible to reliably control a large horizontal displacement.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which a part of a transport container according to an embodiment is broken.

FIG. 2 is a plan view showing the transport container according to the embodiment.

FIG. 3 is a bottom view showing the transport container according to the embodiment.

FIG. 4 is a side view showing a state in which a part of the transport container according to the embodiment is broken.

FIG. 5 is a partially enlarged plan view showing a state in which the protruding portions of the embodiment are accommodated in concave streaks.

FIG. 6 is a partially enlarged cross-sectional view showing a state in which the projecting portion according to the embodiment is loosely fitted.

FIG. 7 is a partially enlarged plan view showing a state in which the projecting portion of the embodiment is housed in a concave streak.

FIG. 8 is a plan view showing a state in which five transport containers according to the embodiment are stacked.

FIG. 9 is a partially exploded perspective view showing a corner portion of a transport container other than the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Container main body, 13 ... Bottom wall, 15 ... Upper peripheral surface flange, 16 ... Lower peripheral surface flange, 18 ... Projection part, 23 ... Side concave groove as a concave part, 24 ... Reinforcement uneven part Bottom wall recess.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hidetoshi Yamaguchi 9-25-25 Kandacho, Gifu City, Gifu Prefecture Gifu Plastic Industry Co., Ltd. F term (reference) 3E006 AA03 BA01 CA01 DA03 DB05

Claims (4)

[Claims] 1. A laterally continuous peripheral flange is provided at an upper portion and a lower portion of a container body formed in a square box shape with a bottom, and when the container bodies are stacked, the lower peripheral flange engages with the upper peripheral flange. And the lower surface of the bottom wall of the container body is configured to be located at the same level or higher than the lower surface of the lower peripheral flange, and the effective height in the container body is obtained by subtracting the thickness of the bottom wall from the total height. A transport container, wherein the lower portion of the bottom wall is provided with an uneven portion for reinforcement. 2. A projecting portion is provided on an upper surface of the upper peripheral flange, and a concave portion is provided on a lower surface of the lower peripheral flange so as to straddle the projecting portion when the container bodies are vertically stacked. The transport container according to claim 1. 3. The transport container according to claim 2, wherein the reinforcing concave / convex portion is configured to engage with the projecting portion. 4. The transport container according to claim 2, wherein the projecting portion is provided at least at a corner of the container body.