JP2002046736A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a small folding container, which is mounted on a folding container, from being removed from the longer side wall of the folding container and tilting, or from dropping in the folding container, and stack the small folding container on the top of the folding container under a stable state. SOLUTION: For this folding container, side walls 2 and 3, which are arranged in a manner to surround a bottom section 1, can be folded to be superposed on the bottom section. In such a folding container, at both end sections of a bottom section longer side wall 1b, an end section engaging block 1d having a notched step section 1d' is arranged. At the same time, at a specified location of the bottom section longer side wall, an intermediate block 1e, on which a fitting protrusion 1e" is provided, is formed. In this case, the fitting protrusion 1e" is fitted in a recess 10e formed on the bottom section 10 of the small folding container C10, which is stacked on the folding container under a folded state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding container which can be folded so that a side wall disposed so as to surround a bottom portion overlaps the bottom portion.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 10 (a), a long side wall 2 connected to a long side opposite to a bottom 1 having a substantially rectangular planar shape via a hinge portion. Similarly, a foldable container (hereinafter, referred to as a large foldable container) C1 including a short side wall 3 connected to the opposite short side of the bottom portion 1 via a hinge portion is known.
As shown in FIG. 10B, the bottom 1 is smaller than the bottom 1 and has a substantially rectangular planar shape.
A long side wall 20 having substantially the same length as the short side wall 3 connected to the opposite long side of the bottom 0 via a hinge portion, and a long side wall 20 connected to the opposite short side of the bottom portion 10 via a hinge portion. Was
A short side wall 3 having a length substantially half the length of the long side wall 2
0 is known as a folding container (hereinafter, referred to as a small folding container) C10.

[0003] The large-sized folding container C1 and the small-sized folding container C10 are both assembled from the box shape shown in FIGS. 1, 10, and then, similarly, by flipping the long side walls 2, 20 inward and overlying the bottoms 1, 10 and the short side walls 3, 30,
As shown in FIG. 12, it is configured to be folded.

At the inner corners of the upper end of the long side wall 2 and the short side wall 3 of the assembled large folding container C1, cutout steps 2a, 3a are formed, respectively. Notched step portions 20a and 30a are also formed on the inner corners of the upper end portions of the long side wall 20 and the short side wall 30 of the small folding container C10 in the folded state, respectively. In addition, on the back surface of the bottom 1 of the large-sized folding container C1, the long side wall 2 of the assembled large-sized folding container C1 located below when stacked is provided.
The notch step portion 2a and the notch step portion 3a of the short side wall 3 are formed so as to extend downward beyond the lower end 1a 'of the peripheral wall 1a of the bottom portion 1. I have.
Similarly, on the back surface of the bottom portion 10 of the small folding container C10, a fitting portion described later is formed so as to extend downward beyond the lower end 10a 'of the peripheral wall 10a of the bottom portion 10.

[0005] The height of the long side wall (hereinafter referred to as the bottom long side wall) 1b of the bottom 1 of the large folding container C1 is higher than the height of the short side wall (hereinafter referred to as the bottom short side wall) 1c. Further, an end engaging block 1d having a cutout step 1d 'facing inward is formed at both ends of the bottom long side wall 1b. The upper surface 1d ″ of the end engaging block 1d having the cutout step 1d ′
The planar shape of the portion along the bottom long side wall 1b and the portion perpendicular to the bottom long side wall 1b and along the bottom short side wall 1c is formed substantially in an L shape.

When stacking the large folded containers C1 in a folded state as shown in FIG. 12, an end formed on the bottom 1 of the large folded container C1 in a folded state located below. A fitting portion formed on the back surface of the bottom portion 1 of the folded large folding container C1 positioned above is fitted and placed in the notch step portion 1d 'of the engagement block 1d. I have.

Conventionally, as shown in FIG. 12, a small folded container C10 in a folded state is placed on a large folded container C1 in a folded state located below and stacked. Has been done.

[0008]

As an example, as shown in FIG. 12, two small folded containers C10 in a folded state are stacked on a large folded container C1 in a folded state. In this case, near the corner formed on the back surface of the bottom portion 10 of the small folding container C10 and sandwiching the long side 10b of the fitting portion, was formed on the bottom portion 1 of the large folding container C1 in a folded state. Of the four end engaging blocks 1d, the notches 1d 'of the two end engaging blocks 1d located across the bottom short side wall 1c are fitted, and the bottom 10 of the small folding container C10 is fitted. The vicinity of the corner 10c located at both ends on the long side 10b side is to be placed on the upper surface 1d "of the end engagement block 1d. 10 of the small foldable container C10 that is not fitted and placed on the end engagement block 1d formed on the bottom 1 of the large foldable container C1 in the open state.
Corner 10c will be placed on the bottom long side wall 1b of the large folded container C1 in the folded state, which is located below the upper surface 1d ″ of the end engaging block 1d, and is therefore folded. The small foldable container C10 in the state is stacked in a state of being inclined toward the center of the large foldable container C1 in the folded state, and the large foldable container C1 in the folded state is stable. Above, there was a problem that the small folding container C10 in the folded state could not be stacked.

Further, the small folded container C10 in the folded state is easy to move in the horizontal direction with respect to the large folded container C1 in the folded state.
The bottom 10 of the folded small foldable container C10 fitted and placed on the end engagement block 1d.
Is disengaged from the end engaging block 1d, and the folded small folding container C10 is placed on the bottom 1 or the long side wall 2 of the folded large folding container C1. There has been a problem that the stacked small folding container C10 is damaged by the weight thereof.

An object of the present invention is to solve the problems of the above-mentioned conventional folding container.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a folding container in which a side wall disposed to surround the bottom can be folded so as to overlap the bottom. End engaging blocks having notched steps are provided at both ends of the small container, and the bottom portion of the small folding container to be stacked on the folded container at a predetermined position on the bottom long side wall. In this case, an intermediate block is formed in which a fitting projection that fits into the recess formed in the projection is formed.

[0012]

Embodiments of the present invention will be described below, but the present invention is not limited to these embodiments unless it exceeds the gist of the present invention. Note that the same reference numerals are used for the same components as those of the above-described conventional large-sized folding container and small-sized folding container, and a detailed description thereof is omitted.

The large folding container C1 according to the present embodiment.
Similarly, a long side wall 2 connected via a hinge portion to an opposite long side of a bottom portion 1 having a substantially rectangular planar shape is formed.
Similarly, a short side wall 3 connected to the opposite short side of the bottom portion 1 via a hinge portion is formed. Further, similarly to the above-described large-sized folding container C1, the height of the bottom long side wall 1b is formed higher than the height of the bottom short side wall 1c, and both ends of the bottom long side wall 1b face inward. End engaging block 1 having notch step 1d '
d is formed.

In the present embodiment, an intermediate block 1e is formed on the upper surface of the central portion of the bottom long side wall 1b of the large folding container C1, and the upper surface 1 of the intermediate block 1e is formed.
e 'has the same height as the upper surface 1d' of the end engagement block 1d described above. A pair of fitting projections 1 are provided on the upper surface 1e 'of the intermediate block 1e at a predetermined interval.
e ". The long side wall 2 is protruded from the long side wall 2 as shown in FIGS. A recess 2 ′ is formed at the center of the lower end of the long side wall 2 so that the lower end of the second side 2 does not contact the intermediate block 1 e.

As shown in FIG. 4 which is a rear perspective view of the large-sized folding container C1, a concave groove 1f is formed in the bottom 1 along the bottom long side wall 1b. The bottom long side wall 1 is formed at predetermined intervals in the concave groove 1f.
A rib 1g perpendicular to b is formed. A pair of adjacent ribs 1g 'located at the center of the bottom long side wall 1b
Accordingly, a fitting concave portion 1h is formed at the center of the concave groove 1f. 1i is a notch step 2 of the long side wall 2 of the assembled large folding container C1 located below when the large folding containers C1 are stacked.
a and the bottom 1 fitted into the cutout step 3a of the short side wall 3
Is formed on the back surface of the bottom portion 1 and extends downward beyond the lower end 1a 'of the peripheral wall 1a of the bottom portion 1. A long side wall 20 of the small folding container C10 is provided in a central region parallel to the short side 1i 'of the fitting portion 1i formed on the bottom 1 of the large folding container C1.
When the large foldable container C1 is stacked on the two small foldable containers C10 arranged so as to contact with each other, the two small foldable containers C contact with each other.
A concave groove 1j into which the upper end of the long side wall 20 is inserted is formed. A cross rib 1k is formed on the back surface of the fitting portion 1i as necessary.

As shown in FIG. 11 which is a rear perspective view of the small folding container C10, concave portions 10e are formed in the vicinity of both ends located across the short side 10d of the bottom 10 of the small folding container C10. ing. 10
f fits into the notch step 20a of the long side wall 20 and the notch step 30a of the short side wall 30 of the assembled small folding container C10 located below when the small folding containers C10 are stacked. The lower end 10 of the peripheral wall 10a of the bottom 10
It is configured to extend downward beyond a ′. A cross rib 10g is formed on the back surface of the fitting portion 10f as necessary.

As shown in FIG. 5, when stacking the small folded container C10 in the folded state on the large folded container C1 in the folded state, the conventional small folding container C10 and the above-described conventional small folding container C10 are stacked. Similarly, the fitting portion 10f formed on the back surface of the bottom portion 10 of the small folding container C10 is formed by cutting the two end engagement blocks 1d located across the bottom short side wall 1c of the folded large folding container C1. Along with the notch step 1d ', the vicinity of the corner 10c located at both ends on the one long side 10b side of the small folding container C10 is placed on the upper surface 1d "of the end engaging block 1d. In addition, among the recesses 10e formed near both ends located on both sides of the short side 10d of the bottom 10 of the small folding container C10, the folding is performed. The upper surface 1e 'of the intermediate block 1e formed on the upper surface of the central portion of the bottom long side wall 1b of the large folding container C1 is formed in the concave portion 10e located near the center of the large folding container C1 in the folded state. Of the pair of fitting protrusions 1e ", the fitting protrusion 1 located on the bottom short side wall 1c side of the large folding container C1.
e ″ is fitted, and near the corner 10c of the bottom 10 of the small folding container C10 located near the concave portion 10e where the fitting convex portion 1e ″ is fitted, the upper surface 1e of the intermediate block 1e. 'Is configured to be placed on.

The small folding container C10 in the folded state, which is stacked on the large folding container C1 in the folded state, has a fitting portion 10f formed on the back surface of the bottom portion 10 in a large folded state. End engaging block 1 formed on bottom 1 of folding container C1
d, the small-sized folding container C10 is configured to fit into the notch step 1d ′ of the small-sized folding container C1 in the folded state.
, The fitting portion 10f of the bottom 10 of the small folding container C10 abuts on the portion along the bottom long side wall 1b of the end engagement block 1d, and the movement is prevented. Become. Further, even if the small foldable container C10 attempts to move in the direction along the bottom long side wall 1b of the large foldable container C1, the fitting portion 10f formed on the back surface of the bottom 10 of the small foldable container C10 has the end engaging block. The small folding container C10 which is perpendicular to the bottom long side wall 1b and abuts along the bottom short side wall 1c and is folded.
A pair of fitting projections projecting from the upper surface 1e 'of the intermediate block 1e formed at the center of the bottom long side wall 1b of the large folding container C1 are formed in the concave portion 10e located near the center of the large folding container C1. In the portion 1e ", the fitting protrusion 1e" located on the bottom short side wall 1c side of the large folding container C1 is fitted, so that the movement is prevented.

As described above, when stacking the folded small folding container C10 on the folded large folding container C1, the fitting portion 10f of the bottom 10 of the small folding container C10 is folded. The long side 10b of the bottom 10 of the small foldable container C10 fits into the notch step 1d 'of the two end engagement blocks 1d located across the short bottom side wall 1c of the large foldable container C1 in the folded state. Are placed on the upper surface 1d "of the end engaging block 1d and formed near both ends of the short side 10d of the bottom 10 of the small folding container C10. Of the two recesses 10e formed, the recess 10e located near the center of the large folding container C1 has a large folding container. The fitting protrusion 1e ″ of the intermediate block 1e formed at the center of the bottom long side wall 1b of C1 is fitted, and the fitting protrusion 1e ″ of the intermediate block 1e is fitted to the recess 10e side. In the vicinity of the located corner 10c,
Since it is configured to be placed on the upper surface 1e 'of the intermediate block 1e having the same height as the end engagement block 1d, the small folded container C10 in the folded state is positioned at the center of the large folded container C1 in the folded state. Since the sheets are stacked horizontally without being stacked in a state inclined toward the portion, the small folded state is placed on the large folded container C1 in a stable state in a folded state. The folding containers C10 can be stacked.

A recess 10 formed near both ends of the short side 10d of the bottom 10 of the small folding container C10.
e, a concave portion 10e located near the center of the folded large folding container C1 has a fitting projection 1e of an intermediate block 1e formed at the center of the bottom long side wall 1b of the large folding container C1. "Is fitted, so that the small foldable container C1 is in a folded state.
0 is a large folding container C1 in a folded state
Does not move in the horizontal direction.

The embodiment shown in FIGS. 8 and 9 is an example in which three small folded containers C10 in a folded state are stacked on a large folded container C1 in a folded state. An intermediate block in which the bottom long side wall 1b of the large-sized folding container C1 is divided into three equal parts, and a pair of fitting projections 1e ″ is protruded from the upper surface 1e ′ at the boundary between the three divided areas. The small folding container C10 ′ stacked on both ends of the large folding container C1 in the folded state is the above-described two small folding containers C10 in the folded state. Is the same as when stacked on the large folded container C1 in the folded state, and in the center of the large folded container C1 in the folded state. Stage stacked miniature folding container C10 "includes two recesses 10e formed near both end portions of the rear surface located on the short side 10d side of the bottom portion 10 of the small folding container C10 is large folding container C
Each of the fitting protrusions 1e ″ projecting from the upper surface 1e ′ of the intermediate block 1e located at the boundary between the three equally divided regions of the bottom long side wall 1b is fitted.

The folded large container C1 can be stacked with four or more folded small folded containers C10. In this case, similarly, the bottom length of the large folded container C1 is also increased. The upper surface 1
An intermediate block 1e having a pair of fitting projections 1e ″ is formed on e ′.

[0023]

Since the present invention has the above-described structure, the following effects can be obtained.

The small foldable container placed on the foldable container can be prevented from falling off the long side wall of the foldable container or falling into the foldable container, and can be stably placed on the foldable container. In addition, small folding containers can be stacked.

[Brief description of the drawings]

FIG. 1 is a perspective view of a folding container according to the present invention.

FIG. 2 is a perspective view of the folding container according to the present invention in the middle of assembly.

FIG. 3 is a perspective view of the folding container according to the present invention in a folded state.

FIG. 4 is a rear perspective view of the folding container of the present invention.

FIG. 5 is a perspective view for explaining the stacking of the folded container according to the present invention and two small folded containers in the folded state.

FIG. 6 is a partially enlarged perspective view of a folded container according to the present invention and two small folded containers in a folded state.

FIG. 7 is a perspective view of the folded container according to the present invention in a folded state and two small folded containers in a folded state.

FIG. 8 is a perspective view of a folded container according to the present invention and three small folded containers in a folded state.

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a perspective view of a conventional folding container and a small folding container.

FIG. 11 is a rear perspective view of a conventional small folding container.

FIG. 12 is a perspective view for explaining stacking of a conventional folded container in a folded state and two small folded containers in a folded state.

[Explanation of symbols]

 C1 folding container C10 small folding container 1 bottom 1e ..... Intermediate block 1e "

Claims (1)

[Claims] 1. A folding container in which a side wall disposed so as to surround a bottom portion can be folded so as to overlap the bottom portion, wherein an end engaging block having a cutout step portion is provided at both ends of the long bottom side wall. At the same time, at a predetermined position of the bottom long side wall, a fitting projection is provided to fit into a recess formed at the bottom of the small folding container to be stacked on the folding container in the folded state. A folding container characterized by having an intermediate block formed.