JPH09221137A - Container for transportation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the upper opening of the lower stage container from getting wide when the containers are stacked in the same direction, by forming fitting recess at the nearby position of the pocket parts of the longitudinal side flange and providing a fitting protrusions fitted to the fitting recesses at the lower end of supporting legs. SOLUTION: A flange 2 is formed at the outer peripheral part of the upper opening of a container body 1 and support legs 4 protruded from the outer face of respective side walls are provided at the lower part of the nearby position of respective ends of the external face of both longitudinal side faces. And pocket parts 5 in which the support leg 4 can be inserted and fitting recesses 7 arranged at the nearby position of the pockets are formed at the flange 2. Further, the fitting protrusions 8 fitted thereto are provided at the lower part of the support legs 4. When the container bodies 1 are stacked in the same direction, the fitting protrusions 8 of the support legs 4 of the upper stage are fitted to the fitting recesses 7 of the lower stage to prevent the container opening from getting wide. When the container is turned 180 degrees and the support legs are inserted in the pocket parts 5, the containers can be stacked in a nest way.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transporting container, and more particularly, to stacking a plurality of container bodies. TECHNICAL FIELD The present invention relates to a transport container that can be nested with its height lowered.

[0002]

2. Description of the Related Art Conventionally, when stacking a plurality of container bodies, a stacking operation in which the contents are stored and the height is raised when the contents are stored, and a nesting in which the contents are stored and the height is lowered when the contents are not stored are performed. A container is known from Japanese Utility Model Laid-Open No. 6-80636.

[0003] This transport container is as shown in FIG. 22, in which a container body 1, which constitutes a main body of a transport container 6, has a rectangular shape in plan view with an open top.
A flange 2 is formed on the outer periphery of the upper opening.
Support legs 4 protruding from the outer surface of the side wall portion are provided at lower portions near both ends of the outer surface portion of both long side walls on the long side of the container body 1.
Is provided. On the other hand, the long side flange portion 2 is formed with a pocket portion 5 into which a support leg 4 formed point symmetrically can be fitted on a side wall portion facing the flange portion 2. And
In a state where the two container bodies 1 are overlapped in the same direction, the lower end of the support leg 4 is placed on the flange portion 2 of the lower container body 1 and rotated 180 ° in plan view with respect to the lower container body 1. When the upper container body 1 is stacked, the support legs 4 of the upper container body 1 are immersed in the pocket portions 5 of the lower container body 1.

[0004] In order to stack the transport container 6 having the above configuration in an empty state in which contents are not put (that is, to make it a nesting state), as described above, the transport container 6 is placed on the lower container body 1. By rotating the upper container body 1 by 180 ° in plan view and stacking it, the support legs 4 of the upper container body 1 are immersed in the pocket portions 5 of the lower container body 1 so that the height is lowered and the upper container body 1 is stacked in multiple layers. is there.

On the other hand, when the contents are put into the container body 1 and stacked vertically in multiple stages, the lower ends of the support legs 4 are placed on the flange portions 2 of the lower container body 1 as described above and They are raised and stacked in a stacking state. However, in this way, when the container bodies 1 containing the contents are vertically stacked, and the weight of the contents is heavy, the bottom surface of the container body 1 bends downward so that the central portion is at the bottom,
As a result, the opening width of the upper opening of the container body 1 tends to be reduced, and the upper container body 1 does not easily fall into the lower container body 1. However, since the bottom surface of the lowermost container body 1 is in contact with the flat ground or a flat installation surface such as a pallet, the bottom surface does not bend and the upper opening of the container body 1 expands outward due to a load from above. Deform in the direction
There is a problem that the upper container body 1 is easily dropped.

For this reason, in the above-mentioned conventional example, FIG.
As shown in FIG. 2, a groove 7'is formed along the long side on the upper surface of the flange 2 on the long side, and an engaging projection 8 is provided on the lower end of the support leg 4 so as to project. Between the upper ends of the opposite side walls of the lower container body 1 by placing the supporting legs 4 of the upper container body 1 containing the contents on the flange portion 2 and fitting the engaging protrusions 8 into the groove portions 7 '. Of the container body 1 containing the contents as described above is stacked in the same direction as the lower container body 1,
When taking out the upper container body 1 in the stacked state, the lower end portion of the support leg 4 of the upper container body 1 is slid over the flange portion 2 of the lower container body 1. 8 is slid within the long groove 7 '.

[0007]

However, the container body 1
Is made of synthetic resin, and when molded with synthetic resin, the flange portion 2 is deformed or corrugated inwardly on the upper opening side of the container body 1 due to contraction during curing. There is a tendency. In the case where the pocket portions 5 are provided at both ends of the flange portion 2, since the width of the flange portion 2 is different between the pocket portions 5, the pocket portion 5 becomes a starting point of deformation and shrinks when the pocket portion 5 is hardened. The lower end portion of the support leg 4 is placed on the flange portion 2 of the lower container main body 1 when the two container main bodies 1 are overlapped in the same direction as described above. The lower container body 1 is
In a configuration in which the support legs 4 of the upper container body 1 are immersed in the pocket portions 5 of the lower container body 1 when the upper container body 1 is overlapped by rotating by 0 °, The position of the provided pocket part 5 is not a symmetrical position,
In addition, the widths of the pocket portions 5 are different, and as a result, when the flange portion 2 is deformed due to contraction during curing, there is a risk of deformation as shown by the imaginary line in FIG. 23, for example.

Since the flange 2 is irregularly deformed in an arc shape or meandering shape, the groove 7 'formed parallel to the long side of the flange 2 is also irregularly deformed. When the protrusion 8 is fitted into the groove 7 'and slid, the engaging protrusion 8 bites into the meandering or curved groove 7' and is difficult to slide or cannot slide. There is a problem that a situation arises.

Further, in the conventional case, the upper container body 1
When the supporting legs 4 on the long side of the container body 1 are placed on the long side flange portion 2 of the lower container body 1 and slid, one of the shorter sides of the upper container body 1 is moved to the shorter side. Although it is slightly lifted and slid, in this case, as shown in FIG. 24, the lower end of the supporting leg 4 on the short side is the lower container body 1
In order to hit the upper end of the side wall on the short side of the sheet to make it into a regular stacking state, it is necessary to push it further strongly and slide it, but there is a problem that the stacking operation is difficult.

The present invention has been made in view of the above-mentioned problems of the prior art, and is one in which nesting stacking and stacking stacking can be selectively performed. When they are stacked in the same direction, it is possible to prevent the space between the upper openings of the lower container body from expanding, and place the lower ends of the support legs of the upper container body on the flange part of the lower container body and slide it. When the support leg of the upper container body is placed on the flange of the lower container body and slid, the lower end of the support leg on the short side of the upper container body It is an object of the present invention to provide a transporting container that can be smoothly pushed even when it hits the upper end of the short side wall of the lower container body.

[0011]

In order to solve the problems of the above-mentioned conventional examples and to achieve the object of the present invention, the carrying container of the present invention is a container body 1 having a rectangular shape in plan view with an upper opening.
The flange portion 2 is formed on the outer peripheral portion of the upper opening portion, and the support legs 4 projecting from the outer surface of the side wall portion 3 are provided at the lower portions near both ends of the outer surface portions of the side wall portions 3 on the long side. The side flange 3 is provided with a pocket 5 into which a support leg 4 formed point-symmetrically on a side wall 3 facing the side flange 2 can be fitted, and a lower stage is formed when two container bodies 1 are stacked in the same direction. When the lower end of the support leg 4 is placed on the flange portion 2 of the container body 1 of FIG. 1, and the upper container body 1 is rotated by 180 ° in plan view with respect to the lower container body 1, the lower container body 1 A carrying container 6 configured such that the support leg 4 of the upper container body 1 is immersed in the pocket portion 5 of the first container, and is engaged in the vicinity of the portion of the long side flange portion 2 where the pocket portion 5 is formed. With the recess 7 formed and the two container bodies 1 stacked in the same direction, Is characterized in that comprising providing the engaging projection 8 which engages in the recess 7 at the lower end portion of the supporting leg 4. By adopting such a configuration, when the contents are put in the container body 1 and the container bodies 1 are stacked in the same direction, the engaging protrusions 8 at the lower end portions of the support legs 4 of the upper container body 1 are used. Engages with the engagement recess 7 provided in the flange portion 2 of the lower container body 1 and prevents the upper opening of the lower container body 1 from expanding. Since the engagement recess 7 is provided only in the vicinity of the pocket 5 forming portion of the flange portion 2 on the long side, when the upper container bodies 1 are stacked, the support legs 4 are connected to the lower container body 1. When the slider is mounted on the flange portion 2 and is slid, the engaging projection 8 is not engaged with the engaging recess 7 and the portion of the flange 2 without the engaging recess 7 is slid. As a result, even if the flange portion 2 is wavy or curved, there is no problem in sliding.

Support legs projecting from the outer surface of the side wall are provided at the lower portions near both ends of the outer surface of the side walls on the short side, and the side wall facing the short side flange 2 is provided. On the flange portion 2 on the short side of the lower container body 1 in the state where two pockets 5 into which the support legs 4 formed in point symmetry can be fitted, and the two container bodies 1 are stacked in the same direction. The lower end of the supporting leg 4 on the short side is placed on the lower side of the container body 1 of the lower stage in a state in which the lower side of the container body 1 is rotated by 180 ° in a plan view and the container body 1 of the upper stage is overlapped. The support leg 4 on the short side of the upper container body 1 is configured to be recessed in the pocket portion 5 of the upper stage, and the concave groove 9 is formed in the vicinity of the pocket portion 5 on the short side of the flange portion 2 on the short side. With 2
When the two container bodies 1 are stacked in the same direction, the lower ends of the supporting legs 4 on the short side of the upper container body 1 are fitted into the recessed grooves 9, and the outer side and the bottom surface of the lower end of the supporting legs 4 on the short side are fitted. It is also preferable that a corner portion formed by the portion is formed as the inclined surface 10.
By adopting such a configuration, when the long side support legs 4 of the upper container body 1 are placed and slid on the long side flange portion 2 of the lower container body 1, the upper container is slid. Even when the lower end of the support leg 2 on the short side of the main body 1 hits the upper end of the side wall 3 on the short side of the lower container body 1, the inclined surface 10 can be smoothly pushed in as a guide.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments shown in the accompanying drawings. 1, FIG. 2, FIG. 3, FIG. 4, and FIG. 5 respectively show a plan view, a front view, a rear view, a right side view, and a left side view showing the whole of the present invention. Support legs 4 are formed at lower portions near both sides of the outer surface of one long side wall portion 3a of the long side wall portion 3 of the container body 1. Here, one of the support legs 4a on both sides is narrower in width than the other support leg 4b.

The upper part of the other side wall 3b on the long side is supported by the support legs 4a, 4b and the point symmetrical position with respect to the center point O (shown in FIG. 1) of the container body 1 in plan view. A pocket portion 5 into which the legs 4a and 4b can be inserted (a pocket portion 5a into which the support leg 4a can be inserted and a pocket portion 5b into which the support leg 4b can be inserted) is formed.

Similarly, support legs 4a and 4b are formed at lower portions near both sides of the other side wall portion 3b on the long side, and the support legs 4a and 4b are formed on the upper portion of one side wall portion 3a on the long side. A pocket portion 5a into which the support legs 4a, 4b can fit;
5b are support legs 4a around a center point O of the container body 1,
4b and a point symmetrical position. Support legs 4c, 4c are formed to protrude at lower portions near both sides of the outer surface of one short side wall portion 3c of the short side wall portions 3, respectively.

A support leg 4 is provided above the other side wall 3d on the short side with respect to the center point O of the container body 1 in plan view.
Pocket portions 5c into which the support legs 4c, 4c can be respectively fitted are formed at the positions of c, 4c and the point target, respectively. Similarly, support legs 4d and 4d are formed at lower portions near both sides of the other side wall portion 3d on the short side, respectively, and the support legs 4d and 4d are formed on the upper portion of one side wall 3a on the short side.
The pocket portions 5d and 5d into which the 4d can be fitted are formed at point-wise positions around the center point O of the container body 1 in plan view.

Here, the distance between the support legs 4c, 4c is set to be different from the distance between the support legs 4d, 4d. For example, the transport container 6 having the above-described configuration is stacked on the lower transport container 6 by sliding the bottom of the upper transport container 6 so as to be tall as shown in FIG. 9 (so-called stacking). When the upper transport container 6 is slid on the lower transport container 6 in a state where the upper transport container 6 is rotated by 180 ° in a plan view, the support legs 4a, 4b, 4a, 4b and supporting legs 4c,
4c, 4d and 4d are the pockets 5a, 5b, 5a and 5b and the pockets 5c and 5 of the transport container 6 in the lower stage.
It is fitted in c, 5d, and 5d so that the height is made shorter as shown in FIG. 10 and stacked (so-called nesting) so as not to be bulky.

Here, in the present invention, as shown in FIG. 1, the engagement recess 7 is formed in the vicinity of the pocket 5 forming portion of the flange portion 2 on the long side. Here, the engaging recess 7 is provided at the position of the flange 2 on the long side corresponding to just above the support leg 4, and the engaging recess 7 is provided at one end in the longitudinal direction of the flange 2 on the long side. Part is adjacent pocket part 5a or 5
The other end of the engaging recess 7 is a guiding inclined surface 20 which communicates with the upper end opening of b.

On the other hand, at the lower ends of the supporting legs 4a and 4b provided on the long side walls 3a and 3b, the two container bodies 1 are engaged with the engaging recesses 7 in a state of being stacked in the same direction. Engagement protrusion 8
Is provided. As shown in FIGS. 4 and 5, the engaging projection 8 is provided with a downward concave portion 21 on the lower end surface portions of the support legs 4a and 4b, so that the portion corresponding to the outer wall portion of the downward concave portion 21 is engaged and projected. It is a part 8.

When the contents are stored in the container main body 1 in a vertically stacked manner, the supporting legs 4 of the upper container main body 1 are placed on the flange 2 of the lower container main body 1.
The lower end portions (engagement protrusions 8) of a and 4b are slid in a mounted state, and when the engagement protrusions 8 engage with the facing engagement recesses 7, the slide is stopped to stack vertically. It can be stacked. Then, in this stacking state, the engagement protrusion 8 engages with the engagement recess 7 to prevent the upper opening of the lower container body 1 from spreading due to the load from the upper container body 1. It is a thing.

Here, the container body 1 is molded of synthetic resin, and the flange portion 2 provided in the upper opening portion of the container body 1 is easily deformed due to contraction during molding and curing.
Since the pockets 5a and 5b are deformed with the shrinkage at the time of molding hardening, the engagement recesses 7 are provided near the pockets 5a and 5b, which are the starting points of the deformation, so that the deformation of the flange 2 can be achieved. Thus, the deformation of the engaging recess 7 due to is minimized, so that the engaging projection 8 can be securely engaged with the engaging recess 7 in the stacking state.

On the other hand, when the lower ends (engagement protrusions 8) of the support legs 4a and 4b of the upper container body 1 are placed on the flange portion 2 of the lower container body 1 and slid, the conventional case is used. Since the groove portion for fitting and guiding the engaging projection 8 in the longitudinal direction is not formed in the flange portion 2, the lower end surface portion of the engaging projection portion 8 is formed on the flat surface of the flange portion 2 of the lower container body 1. Since it slides, the slide operation can be performed without any trouble.

Here, when the flat surface of the flange portion 2 is fitted into the engaging recess 7, the engaging projection 8 is slid into the inclined surface 20 and is engaged from the engaging recess 7. When the protrusion 8 is pulled out to ride on the flat surface of the flange portion 2 and is taken out, by pulling the upper container body 1 in the longitudinal direction,
The engaging protrusion 8 slides on the inclined surface 20 and rides on the flat surface of the flange portion 2 so that it can be pulled out. Release and pull-out operation can be performed smoothly.

By the way, FIG. 8 is a sectional view of a portion where the engaging projection 8 and the engaging recess 7 are engaged when the upper container body 1 is stacked on the lower container body 1 in a stacking state. It is shown. As shown in FIG. 8, the support legs 4a, 4a
The inner wall portion 7a of the engaging recess 7 is fitted into the downward recess 21 provided on the lower end surface of the b, and the upper surface of the inner wall portion 7a is in contact with the upper bottom surface of the downward recess 21. Therefore, in the stacking state, the load from the upper container body 1 is received on the upper surface of the inner wall portion 7a. here,
The lower surface of the engaging projection 8 may be in contact with the bottom surface of the engaging recess 7, or the lower surface of the engaging projection 8 may be slightly above the bottom surface of the engaging recess 7. In the embodiment shown in the accompanying drawings, an example is shown in which the lower surface of the engaging projection 8 is in contact with the bottom surface of the engaging recess 7 so that the load from the upper container body 1 is received in this portion as well. There is.

By the way, in the vicinity of the pockets 5c, 5d of the flange portion 2 on the short side of the container body 1, the container body 1 is stacked in the same direction (that is, in the stacking state) and the short length of the upper container body 1 is shortened. A concave groove 9 into which the lower ends of the side support legs 4c and 4d are fitted is provided. This groove 9 is shown in FIG.
As shown in FIGS. 18 and 19, the upper and inner sides are open, and in the embodiment shown in FIGS. 17 and 18, a small projection 25 is provided at the inner end of the groove 9 so as to project upward. In the embodiment shown in FIG. 19, the opening on the inner side of the concave groove 9 is completely open.

A corner portion formed by the outer portion of the lower end portion of the supporting legs 4c, 4d on the short side and the bottom portion is an inclined surface 10. As the inclined surface 10, FIG. 17, FIG. 18, FIG.
It may be inclined linearly as shown in FIG. 20 or may be inclined arcuately as shown in FIG.
The small projection 25 has a substantially triangular cross section and an inclined surface 26.

Further, in the container main body 1 provided with the small projections 25, the lower side portions of the supporting legs 4c and 4d on the short side are shown in FIGS.
As shown in FIG. 8, a recess 27 into which the small projection 25 is fitted
Is provided. Here, in order to place the container body 1 in a nesting or stacking state, the support legs 4a, 4b on the long side of the upper container body 1 are placed on the flange portion 2 on the long side of the lower container body 1. Slide it,
In this case, when one short side of the upper container body 1 is slid in a state of being slightly raised, the slanted surface 10 of the supporting leg 4c or 4d on the other short side causes the short side of the lower container body 1 to slide. Although it hits the upper end of the side wall 3c or 3d on the side,
The lower end of the support leg 4c or 4d is smoothly fitted into the groove 9 by being guided by the inclined surface 10. The lower surface of the support leg 4c or 4d abuts against the bottom surface of the concave groove 9 to support the load from the upper container body 1. Small protrusion 2
5 is provided, the small projection 25 fits into the recess 27 of the upper container body 1 and prevents the upper opening of the lower container body 1 from expanding in the longitudinal direction and the supporting legs 4c or 4d from falling. it can. Here, in the case where the small projections 25 are provided, the inclined surfaces 10 and 26 serve as guides so that the small projections 25 can be smoothly passed over.

The engagement provided on the flange portion 2 on the long side
Set the groove depth of the recess 7 to H₁And set it on the flange part 2 on the short side.
Set the groove depth of the gutter groove 9 to H_TwoTo the upper side of the small protrusion 25.
Projection length is H_ThreeAnd the depth of the depression 27 is H_FourWhen
Then, the protrusion length of the engagement protrusion 8 on the long side is set to H._FiveIf
H₁≧ H_Five, H_Four≧ H_Three≤H₁≤H_TwoThere is. here
In a concrete example, H₁Is 3 mm, H_TwoIs 3
mm, H_ThreeIs 1 mm, H _FourIs 1 mm, H_FiveIs 3 mm
However, of course, the present invention is not limited to this.

[0029]

According to the first aspect of the present invention, as described above, in the container body in which nesting stacking or stacking stacking can be selectively performed, the pocket portion of the flange portion on the long side is formed. Since the engaging recess is formed in the vicinity of the forming portion and the engaging projection that engages with the engaging recess in a state where the two container bodies are stacked in the same direction is provided on the lower end portion of the support leg, When the contents are put in the container body and the container bodies are stacked in the same direction, the engagement protrusion and the engagement recess prevent the space between the upper openings of the container body in the lower stage from expanding and the upper stage. The container body of can be prevented from falling into the lower container body, and when the container body is molded and hardened with synthetic resin, the flange part provided at the upper opening of the container body will deform due to the pocket part as a starting point. However, the engaging recess is the pocket Since it is provided in the vicinity, the amount of deformation is small, so that the engagement projection and the engagement recess can be reliably engaged with each other. Since there is no engaging recess, the lower end of the support leg of the upper container body can be slid smoothly without being obstructed by the engaging recess when it is slid on the flange part of the lower container body. It is possible.

In addition to the effect of the invention described in claim 1, in the invention described in claim 2, a concave groove is formed in the vicinity of the pocket portion on the short side of the flange portion on the short side. In addition, when the two container bodies are stacked in the same direction, the lower ends of the support legs on the short sides of the upper container bodies are fitted into the concave grooves,
Since the corner portion formed by the outer side of the lower end of the supporting leg on the short side and the bottom is an inclined surface, the supporting leg on the long side of the upper container body is the flange portion on the long side of the lower container body. Even when the lower end of the support leg on the short side of the upper container body hits the upper end of the side wall on the short side of the lower container body when it is placed on top and slid, the inclined surface guides smoothly. It can be pushed in.

[Brief description of drawings]

FIG. 1 is a plan view of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a rear view of the above.

FIG. 4 is a right side view of the same.

FIG. 5 is a left side view of the same.

FIG. 6 is a cross-sectional view of a pocket portion on a long side of the container body.

FIG. 7 is a schematic view of a state in which an engaging protrusion provided at a lower end of a support leg on the long side of the upper container body is placed on a flange portion on the long side of the lower container body of the same and slides. It is a perspective view.

FIG. 8 is a cross-sectional view of a portion where the engaging protrusion is engaged with the engaging recess in the stacking state of the above.

FIG. 9 is a front view of the same stacking state.

FIG. 10 is a front view of the nesting state of the above.

FIG. 11 is a sectional view of a concave groove portion on the short side of the container body.

FIG. 12 is a cross-sectional view of a supporting leg portion on the short side of the above container body.

FIG. 13 is an enlarged sectional view of a concave groove portion according to the third embodiment.

FIG. 14 is an enlarged cross-sectional view of a pocket portion on the short side of the same container body.

FIG. 15 is a cross-sectional view of the short side in the stacking state of the above.

FIG. 16 is a sectional view of a short side in the nesting state according to the embodiment.

FIG. 17 is a cross-sectional view showing a state immediately before the short-side support leg is fitted into the short-side concave groove.

FIG. 18 is a cross-sectional view showing a state in which the supporting leg on the short side is fitted in a concave groove on the short side.

FIG. 19 is a cross-sectional view showing a state immediately before fitting the support leg on the short side into the groove of another embodiment of the above.

FIG. 20 is a perspective view of a portion in which an inclined surface is formed on the support leg on the short side of the same.

FIG. 21 shows another example of the above inclined surface, (a) is a perspective view and (b) is a side view.

FIG. 22 is a perspective view showing a conventional example.

FIG. 23 is a plan view for explaining a deformation of a flange portion in a conventional example.

FIG. 24 is an explanatory diagram for explaining a problem in the case where the lower end of the support leg on the short side hits the upper end of the side wall on the short side in the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Flange part 3 Side wall part 4 Support leg 5 Pocket part 6 Transport container 7 Engagement recess 8 Engagement projection 9 Recessed groove 10 Inclined surface

Claims (2)

[Claims] 1. A flange portion is formed on an outer peripheral portion of an upper opening portion of a container main body having a rectangular shape in a plan view having an upper opening, and is formed in a lower portion near both end portions of outer surface portions of both side wall portions on the long side. Support legs protruding from the outer surface of the side wall portion are provided, and a pocket portion into which a support leg formed point-symmetrically on the side wall portion facing the long side flange portion can be fitted is formed on the long side flange portion, and two container bodies are formed. When stacked in the same orientation, the lower end of the support leg is placed on the flange portion of the lower container body, and when the upper container body is rotated 180 ° in plan view with respect to the lower container body, the lower container is stacked. Is a container for transporting configured such that the support legs of the upper container body are immersed in the pocket portion of the container body, and an engaging recess is formed in the vicinity of the pocket forming portion of the flange portion on the long side. And the two container bodies are stacked in the same direction. In carrying container, characterized by comprising providing an engagement protrusion that engages the engagement recess to the lower end of the support legs. 2. Support legs projecting from the outer surface of the side wall portion are provided at the lower portions near both ends of the outer surface portion of both side wall portions on the short side side, and the flange portion on the short side side is provided on the side wall portion facing the flange portion. When the two container bodies are stacked in the same direction, the pockets into which the support legs formed in point symmetry can be fitted, and the support legs on the short side are placed on the flanges on the short side of the lower container body. When the lower end of the container is placed and the upper container is rotated by 180 ° in plan view with respect to the lower container, the shorter container of the upper container is placed in the pocket of the shorter container of the lower container. Side support leg is configured to be recessed, a concave groove is formed in the vicinity of the pocket portion on the short side of the flange portion on the short side, and when the two container bodies are stacked in the same direction, the upper container The lower end of the support leg on the short side of the main unit fits into the groove to support the short side Carrying container according to claim 1, wherein the formed corner portion between the outer portion and the bottom portion of the lower portion, characterized by comprising as an inclined surface.