JP7201383B2 - Changeable peripheral wall storage box - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage box in which the shape of the peripheral wall changes according to the size of contents to be stored.

As a storage box made of corrugated cardboard for storing spherical agricultural products such as cabbage, lettuce, and pumpkin, as shown in FIG. Adjacent side plates 53 and 54 have short flaps 55 and 56 connected to the upper ends of the side plates 53 and 54, and when the contents C are accommodated from the top opening and the flaps 55 and 56 are closed, the opening remains on the top. A short flap type is often used.

In such a storage box, the flaps 55 and 56 can be closed even if the contents C are stuffed so as to swell to some extent. There is a risk of tearing from the top edge along the crease 52 .

By the way, as shown in FIG. 9 , in Patent Document 1 below, as a storage box having a feature at the corner portion of the peripheral wall 61, a storage box is provided near the boundary between side plates 63 and 64 adjacent to each other with a vertical ruled line 62 interposed therebetween, from the lower end to the upper side. Auxiliary ruled lines 65 are carved with tapered gaps, thereby forming triangular portions 66 between the vertical ruled lines 62 and the auxiliary ruled lines 65, and the upper ends of the adjacent triangular portions 66 of the respective corners. It is described that a corner edge piece 67 is continuously provided across it.

In this storage box, when the corner piece 67 is bent inward from the upper end of the adjacent triangular portion 66, the bending along the vertical ruled line 62 of the corner portion of the peripheral wall 61 is completely extended, and the adjacent triangular portion 66 is folded. form the same plane.

Then, an octagonal cover plate 68 connected to the upper end of one side plate 63 in the longitudinal direction is closed, and an insertion piece 69 connected to the periphery of the cover plate 68 is bent downward and inserted into the box. Since the top surface is octagonal and the bottom surface is square, it has a unique and beautiful appearance.

Japanese Utility Model Laid-Open No. 60-54510

However, even in the storage box described in Patent Document 1, the shape of the peripheral wall 61 becomes fixed as the corner edge piece 67 is bent. As a result, the peripheral wall may break.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a storage box in which the peripheral wall is not easily broken even when filled with contents having a size exceeding the inner dimension.

In order to solve the above-mentioned problems, the present invention provides side plates that are adjacent to each other through a vertical ruled line at a corner portion of a peripheral wall, flaps that are continuously provided at the upper ends of the side plates, and contents that are stored through an opening in the top surface. In a storage box with a closed flap,
Auxiliary ruled lines are carved in at least one of the adjacent corners of the side plates so that the distance between the vertical ruled lines and the vertical ruled lines increases from the bottom to the top, thereby forming a triangular portion between the vertical ruled lines and the auxiliary ruled lines. is formed and
The upper end of the triangular portion of the side plate is an open edge where the extended portion is not connected,
A corner projection is formed at the upper end of the triangular portion so as to protrude upward from the side of the auxiliary ruled line to the side of the vertical ruled line,
According to the size of the contents, both the folding angle along the auxiliary ruled line and the folding angle along the vertical ruled line of the triangular portion at the corner portion of the peripheral wall are changed.

Also, the auxiliary ruled lines are carved at each corner with the vertical ruled line interposed therebetween, and the triangular portions are formed on both sides of the vertical ruled line, and the triangular shapes are adjacent to each other at the corners of the peripheral wall. Each part is made to bend along the auxiliary ruled lines.

In addition, when the flaps connected to the side plates of the peripheral wall are closed, the ends of the flaps are not butted against each other, and a short flap type in which an opening remains on the top surface is used, and the contents are stored so as to swell to some extent. However, the flap was supposed to be closed.

In the storage box according to the present invention, as the contents become larger, the triangular portion at the corner of the peripheral wall is bent along the auxiliary ruled line, and the bending angle is gradually increased and the bending along the vertical ruled line is extended. , The gap between the opposing sides of the top surface, which is the root of the flap, is expanded, and even if the contents that exceed the inner dimensions of the surrounding wall are stuffed, the surrounding wall will not tear along the vertical ruled lines, and the contents such as agricultural products will not be broken. It can be securely wrapped and transported.

FIG. 2 is a back view showing a blank of the variable peripheral wall storage box according to the first embodiment of the present invention; Perspective view showing the state before closing the flap on the top side during assembly of the same. Perspective view showing the closed state of the flap with a rectangular top surface. Schematic plan view showing the open state of the flap with a dodecagonal top surface of the same Perspective view showing the closed state of the flap with a dodecagonal top surface of the same Schematic plan view showing the open state of the flap with an octagonal top surface as above (7A)-(7D) Partially enlarged views showing other examples of the same auxiliary ruled lines Perspective view showing a conventional general short flap storage box A perspective view showing a storage box with an octagonal top surface described in Patent Document 1 with the lid open.

First, a first embodiment of the invention will be described with reference to FIGS. 1 to 7. FIG.

This variable-peripheral-wall storage box is for storing spherical agricultural products such as cabbage, lettuce, and pumpkin, and is formed from a cardboard blank as shown in FIG. In this blank, a pair of side plates 3 in the length direction and a side plate 4 in the width direction are alternately connected to each other via vertical ruled lines 2 at the corners in the portion constituting the peripheral wall 1, and the side plates at one end of the blank. A passage piece 5 is connected to the outer end of 3 via a vertical ruled line 2 .

Top-side flaps 6 and 7 are connected to the upper ends of the side plates 3 and 4, respectively, and bottom-side flaps 8 and 9 are connected to the lower ends of the side plates 3 and 4, respectively. The flaps 6 and 7 on the top side are shorter than the flaps 8 and 9 on the bottom side closing the bottom surface so that an opening remains on the top surface when closed in the assembled state.

Handle holes 10a are provided near the upper portions of the widthwise intermediate portions of the pair of side plates 4, and ventilation holes 10b are provided near the tip portions of the widthwise intermediate portions of the pair of flaps 8. As shown in FIG.

At each corner of the side plates 3 and 4 adjacent to each other, an auxiliary ruled line 11 is carved with the vertical ruled line 2 therebetween and the interval widens in a tapered manner from the bottom to the top. A triangular portion 12 is formed between the ruled lines 11 .

In addition, auxiliary ruled lines 11 are engraved on the extension piece 5, the end of the side plate 3 facing this, and the end of the side plate 4 on the opposite side, in the same manner as the other corners during assembly. A triangular portion 12 is formed.

The auxiliary creases 11 are press creases formed by pressing the cardboard from the back side, and the auxiliary creases 11 of the successive piece 5 overlapping the side plate 4 on the opposite side are intermittent lead creases in order to reduce the bending resistance. It is said that

The upper end of the triangular portion 12 is formed as an open edge with no extended portion, and both side edges of the flaps 6 and 7 on the top side are obliquely cut near the triangular portion 12 . One side edge of the flap 6 located in the middle of the blank is obliquely cut to the vicinity of the tip so as to facilitate locking, which will be described later.

At the upper end of the triangular portion 12, there is an auxiliary ruled line 11 which is slightly lower than the base ruled line of the flaps 6 and 7, and a vertical ruled line 2 which is in the middle of the corner portion during assembly. A raised corner projection 13 is formed.

In the manufacturing process, such a blank is folded along the two vertical ruled lines 2 at the boundaries of each pair of side plates 3 and 4, and the successive piece 5 is attached to the inner surface of the side end portion of the side plate 4 on the opposite side. They are put together to form a flat folded state.

When assembling and using the variable peripheral wall storage box as described above, as shown in FIG. By facing each other, the peripheral wall 1 forms a rectangular tubular shape, the flap 9 on the bottom side is folded inward, the flap 8 is folded so as to overlap it, and the flaps 8, 9 are fixed in a closed state with a tape or the like. . After that, spherical agricultural products such as cabbage are stored in the box through the opening on the top surface.

Then, as shown in FIG. 3, the pair of flaps 6 and 7 on the top side are sequentially folded in the circumferential direction from one flap 6, and the portion facing the side edge of the first folded flap 6 is finally folded. 7, the flaps 6, 7 can be locked in a closed state without using a sealing material such as tape.

At this time, when the contained contents C are not large with respect to the inner dimension of the peripheral wall 1, the peripheral wall 1 is maintained in a square tubular shape in which each corner portion is bent 90° along the vertical ruled line 2, and the top surface is a quadrilateral.

On the other hand, as shown in FIGS. 4 and 5, when a content C slightly larger than the inner dimension of the peripheral wall 1 is stuffed, auxiliary ruled lines 11 are drawn at the corners of the peripheral wall 1 so that the top surface is dodecagonal. The triangular portion 12 is bent along the vertical ruled line 2, the bending along the vertical ruled line 2 is slightly extended, and the interval between the opposite sides of the top surface serving as the roots of the flaps 6 and 7 is slightly increased.

Further, as shown in FIG. 6, when a content C larger than the inner dimension of the peripheral wall 1 is packed, the auxiliary ruled line 11 of the triangular portion 12 of the peripheral wall 1 is arranged so that the top surface becomes an octagon. As the bending angle along the vertical ruled line 2 increases, the bending along the vertical ruled line 2 is completely extended, and the interval between the opposite sides of the top surface serving as the roots of the flaps 6 and 7 is further increased.

In this way, in the variable peripheral wall storage box, as the contents C become larger, the triangular portion 12 of the peripheral wall 1 is bent along the auxiliary ruled line 11, the bending angle is gradually increased, and along the vertical ruled line 2 Since the folds are extended, the intervals between the opposing sides of the top surface, which are the roots of the flaps 6 and 7, are enlarged, and the peripheral wall 1 is in a swollen state, and the content C exceeding the inner dimension of the peripheral wall 1 is packed. However, the peripheral wall 1 is less likely to tear along the vertical ruled lines 2.

For this reason, the variable peripheral wall storage box can be set to have an inner dimension that is one size smaller than that of a general storage box having a similar volume, thereby reducing the cost required for materials.

In addition, since the bottom is square, it can be assembled with semi-automatic box-making machines owned by many farmers in the same way as general storage boxes, so the farmers who use the boxes introduce new box-making machines. No need to.

Further, in a state where the top surface is dodecagonal or octagonal, when a plurality of storage boxes are stacked, a compression strength equal to or greater than that of a normal storage box without auxiliary ruled lines 11 is ensured.

Furthermore, since the corner projections 13 are formed at the upper ends of the triangular portions 12, the accumulated load is received by the corner projections 13 which are less likely to buckle against the vertical load, the compressive strength is increased, and the contents C are crushed. and cargo collapse are prevented.

In the above-described embodiment, the vertical ruled line 2 intersects the two auxiliary ruled lines 11 sandwiching the vertical ruled line 2 at each corner at the base angle, which is the lower end of the vertical ruled line 2, but these are not necessarily at the base angle. They do not have to intersect and do not have to reach the base angle. Also, the auxiliary ruled line 11 does not have to reach the upper ends of the side plates 3 and 4 .

For example, as shown in FIG. 7(7A), the vertical ruled line 2 and two auxiliary ruled lines 11 or their extension lines may intersect above the base angle, as shown in FIG. 7(7B). so that they meet below the base angle. Alternatively, as shown in FIG. 7(7C), two auxiliary ruled lines 11 sandwiching the vertical ruled line 2 or their extension lines may intersect the vertical ruled line 2 or its downward extension line at a vertically displaced position. good. Further, the auxiliary ruled line 11 may be engraved only on one side of the vertical ruled line 2 at the corner portion, as shown in FIG. 7 (7D).

In each of the above-described embodiments, the auxiliary crease 11 may be a general crease line, a lead crease with intermittent cuts in the crease line, or a perforation with only intermittent cuts. The corrugated board may be flattened in the thickness direction with a width.

In addition, although the triangular portion 12 is formed by carving the auxiliary ruled lines 11 in all four corners, if at least one corner is configured in this manner, the size of the contents can be reduced. Since the top surface side of the peripheral wall 1 follows to some extent according to the thickness, the peripheral wall 1 is less likely to break along the vertical ruled lines 2 than a general storage box.

In addition, although a normal bottom conforming to JIS Z 1507 0201 format was exemplified, the bottom format is a so-called one-touch type in which adjacent flaps on the bottom are pasted together and a diagonal crease line is engraved from the diagonal. The bottom or the so-called bottom of hell due to the meshing of the flaps may be used, and is not particularly limited.

1 Peripheral wall 2 Vertical ruled lines 3, 4 Side plate 5 Passage pieces 6, 7 Flap (top side)
8, 9 flap (bottom side)
10a Handle hole 10b Ventilation hole 11 Auxiliary ruled line 12 Triangular part 13 Corner convex part C Contents

Claims (3)

The side plates (3, 4) are adjacent to each other across the vertical ruled line (2) at the corner of the peripheral wall (1), and the upper ends of the side plates (3, 4) are connected with flaps (6, 7). In a storage box in which contents are stored from an opening and the flaps (6, 7) are closed,
An auxiliary ruled line (11) is carved in at least one of the corners where the side plates (3, 4) are adjacent to each other, the vertical ruled line (2) being widened from the lower part to the upper part of the vertical ruled line (2). A triangular portion (12) is formed between the ruled line (2) and the auxiliary ruled line (11),
The upper end of the triangular portion (12) of the side plates (3, 4) is an open edge with no continuous extension,
A corner protrusion (13) is formed at the upper end of the triangular portion (12) so as to protrude upward from the side of the auxiliary ruled line (11) to the side of the vertical ruled line (2),
Depending on the size of the contents, the triangular portion (12) at the corner portion of the peripheral wall (1) is bent at an angle along the auxiliary ruled line (11) and is bent along the vertical ruled line (2). A variable peripheral wall storage box characterized in that both angles change. Two auxiliary ruled lines (11) are carved at each corner with the vertical ruled line (2) interposed therebetween, and the triangular part (12) is formed on both sides of the vertical ruled line (2). The variable peripheral wall storage box according to claim 1 . A short flap type in which, when the flaps (6, 7) connected to the side plates (3, 4) of the peripheral wall (1) are closed, the tips of the flaps (6, 7) are not butted against each other, leaving an opening on the top surface. The variable peripheral wall storage box according to claim 1 or 2 , characterized in that:

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