JP2928914B2 - Strawberry tray - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box-shaped cardboard having a cross-shaped partition by simply bending a single piece of corrugated cardboard having a plurality of folds or cuts along predetermined folds. The present invention relates to a strawberry tray suitable for a use purpose such as, for example, folding up a tray at once and, for example, packing four packed strawberry packs at a time.

[0002]

2. Description of the Related Art The applicant of the present application has previously described a packing tray used for the above-mentioned packed strawberry and the like in Japanese Patent Application No. Hei.
947 (Japanese Patent Application Laid-Open No. 5-112354),
-359200 (JP-A-5-178342),
"Japanese Patent Application No. Hei 7-265522 (Japanese Unexamined Patent Application Publication No. 9-104488)
Japanese Patent Application No. 8-44644 (Japanese Unexamined Patent Application Publication No.
No. 0655)). Each of the above-mentioned prior inventions is configured such that only one cardboard is folded along the fold, and the tray integrally provided with the cross-shaped partition is folded up at a stroke. As in the prior art, the tray and the partitioning material are separately manufactured, and the complicated labor of combining the two is eliminated, and the outstanding feature that the packing cost is remarkably reduced is achieved. .

[0003] When the trays are stacked in a plurality of stages, banded, and packed in one package, the trays of the respective stages are engaged with each other on the upper edge and the bottom surface of the trays so that the trays do not shift sideways during transportation. A locking projection and an engagement hole are provided.
Also, a perforation is provided for dividing the 4-pack tray into two 2-pack trays by utilizing the two-layered structure of the middle partition.

[0004] Alternatively, measures to prevent the tray from being deformed due to the above-mentioned strapping and damage to the strawberry, measures to make the fitting operation when the tray is folded up smoothly, and during refrigeration to maintain freshness Measures have been taken to make it easier for cold air to pass through the tray.

[0005] Furthermore, when the tray is folded up from a single cardboard by a fitting method, both ends of the vertical partition protrude outside the side wall of the tray and hinder the band hanging, so that the protruding portion is bent and fixed. And other measures have been taken.

[0006]

However, even if the protruding portions at both ends of the vertical partition are bent and fixed as described above, the protruding portion remains unchanged, and the trays are easily caught when arranging the trays. In addition, the notch provided for fixing impairs the strength of the tray and does not meet the demands of consumers who want to make the appearance of the tray clearer. Therefore, a main object of the present invention is to provide a smart appearance without a protruding piece for fitting protruding from the peripheral wall surface, and to be easy to handle and unnecessarily bulky, despite being folded up by a fitting method. The goal is to provide a tray for strawberries that does not need to be added. An additional object of the present invention is to provide a strawberry tray that can reduce the amount of cardboard used as much as possible.

[0007]

In order to achieve the above-mentioned object, a strawberry tray according to the present invention comprises a substantially rectangular cardboard 100 which is folded in a cross shape by simply bending it along a fold line. A box-shaped tray 200 integrally provided with a partition is folded up. The corrugated cardboard 100 includes left and right side walls 2 and 3, half-side bottom surfaces 4 and 5 on both sides of a square central surface 1. The vertical partitions 6 and 7 are sequentially connected via a main fold A, a fold C and a fold D, respectively. The front and rear side walls 8 and 9 and the two horizontal partitions 10 are provided on the central surface 1. , 11 are formed into a plurality of cut-and-raised cuts 12 for forming the main folds A and A, respectively.
The oblique folds E and E are provided on the left and right side walls 2 and 3 so as to form the auxiliary pieces 13 for erecting the front and rear side walls 8 and 9 and the horizontal partitions 10 and 11. When the L-shaped cut 14 is provided and the two-fold fold B is provided, when the tray is folded from the cardboard 100,
Fitting cuts 17 and 18 are provided at respective places where the side walls and the partition interfere with each other, and are engaged with the bottom sides of the front and rear side walls 8 and 9 to prevent the half bottom surfaces 4 and 5 from falling off. The protruding pieces 40 are continuously provided via the fold F, and an insertion cut 41 for inserting the locking protruding piece 40 is provided at both ends of the fold D. The heights of one or both of the vertical partitions 6 and 7 may be lower than the horizontal partitions 10 and 11 by a predetermined dimension.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 4 and 5,
The strawberry tray (hereinafter simply referred to as a tray) 200 of this embodiment, which is shown as a perspective view on the top and bottom sides, is shown in FIG.
Can be easily and quickly folded up simply by folding along the fold line.

The substantially rectangular corrugated cardboard 100 is provided with folds, cuts and the like at a plurality of predetermined locations. The manner of providing the folds and cuts will be described in detail below. Cardboard 100
The left and right side walls 2 and 3 serving as the left and right side walls of the tray 200 are respectively provided on the left and right sides thereof with a main fold A
It is connected via. The left and right side walls 2 and 3 are provided with a two-fold fold B for reinforcing the side walls by bending the two side walls into a stacked shape and for convenience of printing described later.

At the side edges of the left and right side walls 2 and 3, half-side bottom surfaces 4 and 5 which are half portions of the bottom surface of the tray 200, respectively.
Are connected to each other via a fold line C. Further, longitudinal partitions 6 and 7, which constitute one of the cross-shaped middle partitions, are respectively connected to the respective side ends of the half-side bottom surfaces 4 and 5 via folds D, respectively. Both vertical partitions 6 and 7 are tray 200
Is folded up, as shown in FIG.

As shown in FIGS. 5 and 6, the width of each of the half-side bottom surfaces 4 and 5 is determined with the tray 200 folded.
The bottom width m is set so as not to be smaller than the top width n of the tray.

Further, on the central surface 1, the front and rear side walls 8 and 9 of the tray 200 and the two-layered horizontal partitions 10 and 11, which constitute the other of the cross-shaped middle partitions, are cut and raised, respectively. In order to form an upright shape, a total of five cut-and-raise cuts 12 are provided in parallel with each other so as to straddle the two main folds A, A in the arrangement shown in the figure. These horizontal partitions 10, 11 and vertical partitions 6,
7 is provided with a substantially U-shaped vent notch 30 at each of two locations on the upper edge side.

The left and right side walls 2, 3 are provided with trapezoidal standing auxiliary pieces 13 serving to raise the front and rear side walls 8, 9 and the horizontal partitions 10, 11, respectively. 10, 11 are formed on both side ends in a state of being continuous with the main fold A therebetween. This standing auxiliary piece 13
Is a diagonal fold E having a predetermined length extending from both ends of the middle cut-and-raising cut 12 and both ends of the front and rear edges a of the center plane 1 at an angle of 45 degrees with respect to the main fold A;
And an L-shaped cut 14 extending toward the end of the adjacent cut-and-raise cut 12 from the front end.

The diagonal fold E is provided with a half-cut line on the back side,
The erecting auxiliary piece 13 is made to be more easily erectable. In addition, at both ends of the cut-and-raised cut 12 in the middle,
An arrow-shaped hollow b is provided, and the locking piece 15 described below is provided.
Can be engaged.

At both ends of the cut-and-raised cut 12 which is the upper edge of the front and rear side walls 8 and 9, locking pieces 15 are provided to protrude from the four upper corners of the folded tray 200 respectively. The locking pieces 15 are provided so as to straddle the left and right sides of the main fold A.

On the other hand, left and right side walls 2 and 3 and half
At both ends of both folds C, C, which are border lines with 5,
An engagement hole 16 for engaging the locking piece 15 is provided in a notch shape so as to straddle both sides of the fold C. Also, the front and rear side walls 8, 9
At both end portions of the lower side edge a, cutout portions 16a that become a part of the engagement holes 16 are provided. Notches c at both ends of the fold B for avoiding interference with the locking pieces 15
Is provided.

Further, a locking projection 40 is provided at the center of the lower side edge a of the front and rear side walls 8, 9 via a fold F.

As shown in FIGS. 2 to 4, the corrugated cardboard 100 is folded up into the tray 200, and the left and right side walls 2, 3 and the half bottom surfaces 4, 5 and the vertical partitions 6, 7 are mutually separated. At each of the interfering points, a notch for fitting 1 for avoiding this interference and fixing the folded shape of the tray 200
7 and 18 are provided in the arrangement shown in FIG.

An engaging hole 20 for engaging the locking piece 15 is formed at the intersection of the fitting cut 17 and the fold C.
It is provided in a shape similar to a wide cross. The wide engagement hole 20 allows the fitting operation when the tray 200 is folded up to be performed more smoothly, and also serves as a ventilation hole.

Further, locking projections 4 provided on the front and rear side walls 8 and 9 are provided at both ends of the folds D and D for erecting the vertical partitions 6 and 7.
Insertion cuts 41 for inserting 0s are provided respectively. A notch e for facilitating the above-described insertion operation is provided at the start end side of the insertion cut 41.

Perforations K reaching the left and right ends of the corrugated cardboard 100 are provided on both left and right sides of the middle cut-and-raised cut 12, respectively, so that the tray 200 can be divided into two. The height of the peripheral wall of the tray 200 and the height of the cross-shaped middle partition are substantially the same.

Next, the operation of the above configuration will be described. In order to fold up the tray 200 from the cardboard 100, first, the left and right sides of the central surface 1 are held with both hands, and the main folds A, A are once bent downward to give a downward folding habit.

Next, as shown in FIG. 2, the main folds A, A are bent upward and the left and right side walls 2, 3 are erected to face each other. 10,1
As 1 is pressed between the left and right side walls 2 and 3, the main fold A is bent downward and the oblique fold E is bent upward. Therefore, each of the front and rear side walls 8, 9 and the horizontal partitions 10, 11 is naturally erected.

Then, as shown in FIGS. 2 and 3, the left and right side walls 2 and 3 are folded inward along the folding fold B in a two-ply manner. Subsequently, when the folds C and D are bent downward at right angles, the front and rear side walls 8 and 9 which are erected
And the mating cuts 17, 18 provided at respective locations where the horizontal partitions 10, 11 and the right and left side walls 2, 3, the half bottom surfaces 4, 5 and the vertical partitions 6, 7 interfere with each other. As a result, as shown in FIG. 4, the tray 200 integrally provided with a cross-shaped partition is folded up without any trouble, and the folded shape is substantially fixed.

At the time of this engagement, as understood from FIG. 3, a wide cross-shaped engagement hole 20 is provided at the intersection of the fitting cut 17 and the fold C. The alignment operation can be performed smoothly without any trouble.

When the tray 200 is folded up, as shown in FIGS. 3 to 5, each of the locking projections 40 projecting from the center of the lower edge of the front and rear side walls 8, 9 is inserted along the fold line F, respectively. While being bent at right angles to the directions, the trays 200 are respectively inserted into insertion notches 41 provided at both ends of the lower side of the front and rear side walls 8 and 9, respectively.
More securely fix the folded shape. This eliminates the risk that each of the half bottoms 4 and 5 will fall off due to the load applied to the upper surface thereof, and the series of folding operations of the tray 200 is extremely simple, unlike a complicated operation description in text. Complete quickly.

As shown in FIGS. 4 and 5, the latching pieces 15 project from the four corners of the upper edge of the folded tray 200.
Also, at the four corners of the bottom surface and both ends of the horizontal partitions 10 and 11,
The engagement holes 16 and 20 for engaging the locking pieces 15 are formed respectively. For this reason, when the trays 200 are stacked in multiple stages for transportation and handling, it is possible to reliably eliminate the possibility that the trays 200 in each stage are shifted from each other.

Further, when the four-pack tray 200 is cut off along the perforation K and divided into two two-pack trays, and it is desired to stack multiple trays, regardless of the overlapping direction of the trays, However, since the locking pieces 15 are securely engaged with either of the engagement holes 16 and 20, the multi-tiering can be performed without any trouble.

Further, the width W of the half-side bottom surfaces 4, 5 is set so that the bottom width m of the tray 200 is equal to (or somewhat wider) the top width n (FIG. 5, FIG. 5). 6). Therefore, a packing band (not shown) is placed on the stacked trays 200.
Even if it is strongly applied, the bottom surface of the upper tray is shifted to the inside of the lower tray and the risk of damaging the strawberries can be surely eliminated.

When the packing band is hung on the multi-tiered tray 200 in a cross shape, the outer peripheral surface of the tray 200
Since there are no obstructive protrusions derived from the fitting type assembly structure, not only can a band be hung properly at a desired position, but also the appearance of the tray 200 as a product is the same as the conventional one described at the beginning. It can be much cleaner than that of

Furthermore, in order to keep the freshness of the strawberries, when the trays containing the packed strawberries are stored in a large refrigerator and cooled, they are provided at the upper edges of the vertical partitions 6, 7 and the horizontal partitions 10, 11 respectively. The cut-out portion 30 for ventilation plays a role of quickly and efficiently spreading cold air into each of the stacked trays. In this case, the engagement holes 16 and 20 which are largely opened
Also contribute to the rapid diffusion of cold air.

Alternatively, while the tray 200 is being folded, the left and right side walls 2 and 3 are each folded in two layers, thereby greatly increasing the structural strength of the tray 200. or,
By providing the two-ply portion, the cardboard 10
By simply printing one side of the tray 200, the entire outer peripheral surface of the folded side wall of the tray 200 can be used as the printing surface. If the left and right side walls 2 and 3 are single walls, it is necessary to print on both front and back sides, and such an economic effect cannot be obtained.

FIGS. 7 and 8 show a second embodiment in which the form of the vertical partitions 6 and 7 is slightly changed. The tray 201 of this embodiment shown in FIG. 8 is folded up from the cardboard 101 shown in FIG. The difference from the first embodiment is that
The height of each of the vertical partitions 6 and 7 is changed to the horizontal partition 10, 1
By setting the value to be lower than 1, the amount of cardboard used can be saved. As a result, the required strength of the tray 200 is not reduced, but rather, the effect of accelerating the diffusion of cool air during refrigeration is obtained.

FIGS. 9 and 10 show a third embodiment in which the form of the vertical partitions 6 and 7 is slightly changed. The tray 202 of this embodiment shown in FIG. 10 is folded up from the cardboard 102 shown in FIG. The difference from the first embodiment is that the height of one of the vertical partitions 6 and 7 is lower than that of the horizontal partitions 10 and 11 in the second embodiment and the height of the other is smaller than that of the horizontal partitions 10 and 11. The height dimension of the vertical divider 7 remains the same as that of the first embodiment.

The effect of this embodiment is that, in addition to saving the amount of corrugated cardboard, when the trays 200 are stacked in a state of being divided along the perforated line K, unlike the second embodiment, a half The side bottom surfaces 4 and 5 are located at a position where the upper edges of the vertical partitions 6 and 7 lose their supporting action and fall and lose the possibility of damaging the strawberries in the lower tray 200.

The use of the strawberry tray is not necessarily limited to the strawberry pack, and the strawberry tray may be used for another purpose by appropriately changing the dimensions of each part. In this case, depending on the form of the tray, the height of the horizontal partitions 10 and 11 may be lower than that of the vertical partitions 6 and 7. It is also possible to form three or more horizontal partitions on the central surface 1.

[0037]

As is apparent from the above description, the strawberry tray according to the present invention has various practically excellent effects as listed below. (A) By simply bending one piece of corrugated cardboard along a fold, a box-shaped tray integrally provided with a partition can be easily and quickly folded. (B) Despite being folded up by the fitting method, the outer peripheral wall of the tray does not have any protruding portion derived from the fitting structure, so that the work of stacking the trays and banding them freely can be freely performed. It can be done and does not get caught on the next tray during handling. (C) Also, since there is no protruding part on the outer peripheral wall of the tray,
Not only is the appearance clearer, but the outer shape of the tray does not have to be increased unnecessarily. (D) By reducing the height of the vertical partition, the amount of corrugated cardboard can be saved and the diffusion of cold air during refrigeration can be promoted.

[Brief description of the drawings]

FIG. 1, showing an embodiment of the present invention, is a plan view showing a state where a tray is developed into one piece of cardboard.

FIG. 2 is a perspective view showing a state in which the tray has begun to be folded from cardboard.

FIG. 3 is a perspective view showing a state where the tray is substantially folded up;

FIG. 4 is a perspective view of the tray which has been folded up.

FIG. 5 is a perspective view showing the back side of the folded tray.

6 is a partial longitudinal sectional view of the same as in the direction indicated by the arrow XX in FIG. 4;

FIG. 7 is a view corresponding to FIG. 1, showing a second embodiment of the present invention.

FIG. 8 is the same as FIG. 4;

FIG. 9 is a view corresponding to FIG. 1, showing a third embodiment of the present invention.

FIG. 10 is a diagram corresponding to FIG. 4;

[Explanation of symbols]

 100, 101, 102 Corrugated cardboard 200, 201, 202 Tray 1 Central surface 2, 3 Left and right side walls 4, 5 Half-side bottom surface 6, 7 Vertical partition 8, 9 Front and rear side walls 10, 11 Horizontal partition 12 Cut-and-break cut 13 Standing auxiliary piece 14 L-shaped cut 15 Locking piece 16, 20 Engaging hole 16a Notch 17, 18 Fitting cut 30 Vent notch 40 Locking protruding piece 41 Insertion cut A Main fold B Double fold C, D, F Crease E Oblique fold K Mincer W Width of the bottom surface on one half side a Edge b Borehole c, d, e Notch m Bottom width n Top width

Claims (2)

(57) [Claims] 1. A box-shaped tray 200 integrally provided with a cross-shaped partition by simply bending one piece of substantially rectangular cardboard 100 along a fold line. The corrugated cardboard 100 has left and right side walls 2 and 3, half-side bottom surfaces 4 and 5 and vertical partitions 6 and 7 on both sides of a square central surface 1 via a main fold A, a fold C and a fold D, respectively. The center surface 1 is provided with a plurality of cut-and-raised cuts 12 for forming front and rear side walls 8 and 9 and two stacked horizontal partitions 10 and 11 in a cut-and-raised shape, respectively. Are provided in parallel so as to straddle between the main folds A, A, and the right and left side walls 2, 3 are formed with an auxiliary piece 13 for erecting the front and rear side walls 8, 9 and the horizontal partitions 10, 11. In addition to the oblique fold E and L-shaped cuts 14 for When the tray is folded from the cardboard 100, fitting cuts 17 and 18 are provided at respective locations where the side walls and the partition interfere with each other, and the half bottom surfaces 4 and 5 fall out. In order to prevent this, the locking projections 40 are continuously provided on the bottom sides of the front and rear side walls 8 and 9 via the fold F, and the locking projections 40 are inserted into both ends of the fold D. A strawberry tray characterized by having a cut 41 for fitting. 2. The strawberry tray according to claim 1, wherein the height of one or both of the vertical partitions is lower than that of the horizontal partitions by a predetermined dimension.