JP7138762B2 - chicken egg container - Google Patents

Description

The present invention relates to an egg container used for packaging, transporting, and selling eggs, and in particular, inserts a label printed with a bar code (POS mark), producer, egg size, expiration date, etc., to be visible from the outside. It is configured so that

An egg container molded from a synthetic resin sheet consists of a meat portion, a lid portion, and a connection portion that connects these two portions in a bendable manner. A plurality of (for example, 10 eggs in 2 rows of 5) each having a truncated pyramidal or truncated conical projection formed at the crossing portion is formed with a housing recess and a flange portion for containing eggs.

In such an egg container, it is difficult to affix a label due to irregularities in the meat part and the lid part. Therefore, as described in Patent Document 1 below, an egg container has been proposed in which a lid portion is formed with a flat surface on which a label can be attached.

The label L to be pasted on the flat surface is printed on the surface of paper or synthetic resin sheet with a bar code (POS mark), producer, egg size (L, M, S), expiry date, etc. An adhesive layer is formed on the back side.

Labels having such an adhesive layer are expensive, and when used egg containers are collected and used as recycled raw materials, it takes a great deal of time and effort to remove the attached label. In addition, there is a problem that adhesive residue is left on the adhesive layer when the adhesive layer is peeled off, making recycling difficult.

Therefore, an egg container has been proposed in which a label such as paper having no adhesive layer is inserted into the egg container together with the egg.

For example, the egg container disclosed in Patent Document 2 below is made by molding a transparent synthetic resin sheet, and as shown in the plan view of FIG. 5 and the cross-sectional view of FIG. storage recesses 11, partition walls 12 formed between adjacent storage recesses 11, and protrusions 14 to 17 formed upward at portions where the partition walls 12 intersect in a cross shape, and further, storage recesses A flange 19 is formed around 11 .

The lid portion 2, which is integrally formed with the meat portion 1 via the bendable connecting portion 3, has a flat surface 20 that becomes a flat top surface when the lid is closed, and four surfaces formed around the flat surface 20. A flange 29 is formed around the side wall 21 and the opening surrounded by the side wall 21 .

The flange 29 of the lid portion 2 overlaps the flange 19 of the meat portion 1 when the lid is closed, and is used for sealing with an adhesive tape or the like.

The accommodation recess 11 of the meat part 1 has a size and shape that can accommodate the lower part (sharp end side) of the egg E, and in the closed state, the upper part (spherical side) of the egg E and the closed lid part. The inner surface of the top surface 20 of 2 approaches and holds the label L.

Utility Model Registration No. 2510027 JP 2017-19550 A

Containers containing eggs are stacked in multiple layers during packing, transportation, and display at stores, and the strength to withstand stacking is required to prevent collapse of the cargo and breakage of the eggs.

In the egg container disclosed in Patent Document 2, instead of providing a protrusion on the flat portion 20 serving as the top surface of the lid portion 2, the height from the meat portion 1 to the flat portion 20 of the lid portion 2 is increased. Protrusions 140 to 170 are formed to press and hold the label against the top surface when the lid is closed, and the height of the protrusions 140 to 170 is almost double that of the conventional egg container. It is.

This projecting portion holds the label when the lid is closed, and also supports the top surface 20 of the lid portion 2, thereby providing strength to withstand stacking.

However, if a synthetic resin sheet is vacuum-molded or blow-molded to form such a high projection, it will be stretched significantly in the thickness direction, resulting in a thin film. cease to function. For this reason, a synthetic resin sheet, which is a raw material, must be thicker than the sheet used to manufacture conventional egg containers, resulting in an increase in cost.

Further, molding such a synthetic resin sheet to form a high protruding portion requires a high level of technology, and it is not easy to improve the yield.

Hundreds of unused egg containers are stacked with their lids open, packed in cardboard, and then transported. When such a high protrusion exists, the periphery of the protrusion becomes a large dead space in the case, and the protrusion is likely to be subjected to impact during transportation, and may be greatly deformed.

The egg container of the present invention is an egg container comprising a meat portion for containing a plurality of eggs and a lid portion connected to one side of the meat portion via a bendable connecting portion, wherein the meat portion includes , a partition for holding a plurality of eggs spaced apart from each other; , a truncated pyramid having a flat surface and side walls that allow the label placed inside to be visible, and in the closed state, at positions facing the two first projections at both longitudinal ends of the meat part. or having two secondary protrusions of frusto-conical shape, and in the egg-filled closed state, the label is positioned by the longitudinal side walls of the lid portion and the two secondary protrusions, each It is held between the chicken egg and the flat surface of the lid portion.

In another embodiment of the egg container of the present invention, the second projecting portion formed on the lid portion has cut surfaces cut in the longitudinal direction, and both cut surfaces are arranged so as to face inward and face each other. there is

According to the egg container of the present invention, it is possible to manufacture at a low cost without providing a high protruding portion that supports the top surface of the lid portion from the body portion, and it is possible to reduce damage to the eggs due to deformation of the container, and , even when an unused egg container is transported, it can be transported without deforming the projecting portion. The enclosed label is also stably positioned by the longitudinal side walls and two protrusions of the lid portion.

A perspective view showing the inner surface of the chicken egg container of the first embodiment of the present invention, A plan view showing the egg container of the first embodiment, A perspective view showing the outer surface of the egg container of the first embodiment, A perspective view showing the inner surface of the chicken egg container of the second embodiment of the present invention, A plan view showing an example of a conventional chicken egg container, FIG. 3 is a cross-sectional view showing an example of a conventional egg container.

As shown in the perspective view of FIG. 1 and the plan view of FIG. 2, the egg container of the first embodiment of the present invention is formed by molding a synthetic resin sheet to hold a plurality of eggs separated from each other. An egg container comprising a meat part 1 having a storage recess 11 and a lid part 2 connected to the meat part 1 via a bendable connecting part 3, without increasing the thickness of the synthetic resin sheet as a raw material, The labels can be stably arranged at a place where the label can be easily visually recognized, and the labels do not collapse when stacked and have strength enough to withstand transportation.

In the meat portion 1 of the egg container of the present invention, a plurality of eggs are separated by partitions 12 so as to hold a plurality of eggs spaced apart from each other, for example, ten eggs in two rows of five. A storage recess 11 is formed, and four truncated pyramidal or truncated conical projections 14 to 17 are arranged in the longitudinal direction at the intersection of each partition wall 12 in a cross shape. A flange portion 19 is formed on the .

As shown in FIGS. 1 and 2, the lid portion 2 has two projections of truncated pyramidal shape or truncated cone shape at positions facing the two projections 14, 17 at both longitudinal ends of the meat portion 1 in the closed state. Portions 24 and 27 are formed downward. These two protrusions 24, 27 have a shape cut longitudinally in a truncated pyramid shape or a truncated cone shape with a plane deviated from the center line, and their cut surfaces 241, 271 are arranged so as to face inward and face each other. It is

Furthermore, in the lid portion 2, when the lid is closed, projections are not formed at positions facing the intermediate projections 15 and 16 except for the two projections 14 and 17 at both ends of the meat portion 1. A flat surface 20 is formed to hold the label L that has been placed with the egg.

A flange portion 29 is formed around the lid portion 2, and when the lid is closed, it overlaps with the flange portion 19 of the meat portion 1 and is used for sealing with an adhesive tape or the like.

As shown in the perspective view of the outer surface of FIG. When stacked, the tips 111 at the four corners protruding outside the storage recess 11 of the body part 1 are fitted in the quarter-circular ridges 28 so as not to slide sideways and prevent the load from collapsing. ing.

When an egg is put into each storage recess 11 of the meat portion 1 and a label L is put on the flat surface 20 of the lid portion 2 in the open state and the lid portion 2 is closed, the label L is placed on the flat surface of each egg and the lid portion 2. It is held between the surface 20 and positioned surrounded by the side wall 21 of the lid portion 2 and the two projections 24,27.

Even if egg containers constructed in this way are stacked in a plurality of stages, the flat surface 20 of the lid portion 2 is provided with the two projecting portions 24 and 27. Since the projecting portions 14 and 17 abut against each other to form a columnar body, the load of the upper layer can be transmitted to the lower layer without applying the load to the flat surface 20 of the lid portion, so that the eggs put in can be prevented from being damaged. There is no.

(Second embodiment)
In the first embodiment described above, the two truncated pyramidal or conical projections 24, 27 provided on the flat surface 20 of the lid portion 2 are cut longitudinally on the planes offset from the center line. , with their cutting surfaces 241, 271 facing inward and facing each other, but in the second embodiment, as shown in the perspective view of FIG. , 270 so as not to form cut surfaces 241 and 271.

When an egg is put into each storage recess 11 of the meat portion 1 and a label L is put on the flat surface 20 of the lid portion 2 in the open state and the lid portion 2 is closed, the label L is placed on the flat surface of each egg and the lid portion 2. It is held between the surface 20 and positioned by the side walls 21 of the lid portion and the sides of the two projections 240,270.

Note that the label L is not limited to a rectangular label, and may be positioned by forming a notch L2 fitted to the two protrusions 240 and 270 of the lid portion 2 as shown in FIG.

1 body part
11 Storage recess
12 Bulkhead
14 to 17 protruding part
19, 29 Flange 2 Cover
20 flat surface
21 side walls
24, 27 Projection
240, 270 Projection
28 Quarter circle ridge 3 Connecting part L Label

Claims (1)

An egg container, which is a molded product of a synthetic resin sheet, comprising a meat portion for containing a plurality of eggs and a lid portion connected to one side of the meat portion via a bendable connecting portion,
The meat portion has a partition wall that holds a plurality of chicken eggs spaced apart from each other, and a truncated pyramidal or truncated cone-shaped first protrusion formed at the cross-shaped crossing portion of the partition wall,
The lid portion is formed on a flat surface on which a label placed inside the container can be seen, a side wall, and a position facing two first protrusions at both longitudinal ends of the meat portion when the lid is closed, and two second protrusions of frusto-pyramidal or frusto-conical shape that abut the first protrusions to form a column;
in the egg-filled, lid-closed position, the side walls of the lid portion and the two second protrusions position around the edges of the label, with each egg and the flat surface of the lid portion holding the label upside down;
The two second protrusions have cut surfaces obtained by cutting a truncated pyramid or truncated cone in the longitudinal direction,
An egg container, wherein the cut surfaces are arranged to face each other and position opposite edges of the label that are relatively pushed up by the egg when the lid is closed.

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