JPH09278076A - Thin packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform the affixing and the peeling off of an adhesive tape for an egg container which is sealed with the adhesive tape. SOLUTION: In housing parts 4, 5 of a main body 2 and housing parts 4, 5 of a lid body 3, ribs 10 which extend toward the leading end edges of flanges 7, 8, are formed, and an adhesive tape is affixed under a state wherein the adhesive tape strides across the upper and the lower ribs 10. Since the adhesive tape is simply bent into an L-shape, the affixing and the peeling off become easier. Also, the area of the adhesive tape can make larger, and various kinds of information such as a bar code can be displayed on the adhesive tape.

Description

Detailed Description of the Invention

The present invention relates to a thin-walled container in which a main body and a lid are integrally connected by a bendable hinge portion in a container manufactured by vacuum forming or pressure forming using a synthetic resin sheet as a material. It concerns a container.

[0002]

2. Description of the Related Art As a container manufactured by vacuum forming or pressure forming using a synthetic resin sheet as a raw material, for example, a container for an egg, a main body opened upward and a lid opened downward to cover the main body. There is a form in which a hinge portion is integrally connected to each other, and flanges are formed at the opening edge of the main body and the opening edge of the lid so as to overlap each other.

As means for sealing the container of this form,
Generally, the flange of the main body and the lid is heat-sealed at the free end on the side opposite to the hinge portion, but with this sealing means, the flange of the main body and the lid should be strongly separated at the heat-sealing point. Since it cannot be opened, there are problems in that opening is troublesome and that the container often turns over due to the momentum of opening.

Various means have been considered for making it easy to open the package, and as one example, Japanese Patent Publication No.
As disclosed in Japanese Patent No. 12203 and shown in FIG.
Housings 21 and 22 in which the body and lid fit approximately half of the eggs
In a container for hen eggs formed by bulging, the adhesive tape 25 is adhered to the flanges 23 and 24 of the main body and the lid so as to embrace the flanges 23 and 24, and is sealed by sealing the entire length of the free end. In addition, a part of the process is to open the adhesive tape 25 by peeling it off.

[0005]

However, since this sealing means folds the adhesive tape 25 by 180 degrees, not only is the device for adhering complicated, but the adhesive tape 25 is peeled off. There was a problem that it was troublesome. In addition, there are cases where it is desired to display a barcode, an explanation of the egg, etc. on a container for chicken eggs, but since the width dimensions of the flanges 23 and 24 are limited, the adhesive tape 25 can be used as a means for displaying various information. There was also a problem in that it could hardly be done.

According to the present invention, in a container which is sealed by using an adhesive tape, the adhesive tape can be easily attached and peeled off, and an adhesive tape having a large area can be used for sealing. The purpose is to be able to display various information on the adhesive tape.

[0007]

In order to achieve this object, according to the present invention, as described in claim 1, there is provided a main body having an upward opening, and a lid body having a downward opening in a state of being overlapped with an upper surface of the main body. , And are integrally connected to each other via a bendable hinge portion on one side of the main body and the lid, and the outward edges that overlap each other on the opening edge of the main body and the opening edge of the lid, In a thin-walled packaging container which is provided all around or partially except the hinge portion, "in each of the side walls connected to the flange in the main body and the lid, facing the outside of the main body and the lid. Ribs protruding in a protruding manner are formed so as to extend intermittently along the longitudinal direction of the flange, or to extend at an appropriate length that is not the entire length of the flange,
It is possible to attach the adhesive tape while straddling the ribs of the main body and the lid body. "

Further, according to the present invention, an egg is formed by arranging a downwardly narrowed housing portion in the main body and an upper narrowed housing portion in the lid body in a plurality of rows aligned in the vertical and horizontal directions. It is suitable for a container, and as an example thereof, as described in claim 2, "extends along a flange located on the free end side opposite to the hinge part among the side walls of each accommodating part in the main body and the lid. The rib is formed on each side wall ".

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. Hatching is omitted in the cross-sectional views except FIG. 1 to 7 show a first embodiment in which the present invention is applied to a container for chicken eggs, of which FIG. 1 is a perspective view of the container 1 with a lid 2 covering a main body 3, and FIG. 1 is a partially enlarged view, FIG. 2 is a partial plan view, FIG. 4 is a sectional view taken along line IV-IV of FIGS. 2 and 3, and FIG. 5 is a sectional view taken along line VV of FIG.

The main body 2 is formed with a plurality of upwardly-opening accommodating portions 4 into which the substantially lower half of the egg E (see FIG. 5) is fitted, aligned in the vertical and horizontal directions. A plurality of accommodating portions 5 are formed so as to bulge corresponding to the accommodating portions 4. Body 2
The lid 3 and the lid 3 are hinged portions 6 that are bendable at one longitudinal edge.
Are integrally connected at. Further, flanges 7 and 8 that overlap each other are formed on the main body 2, the lid 3, and the outer peripheral edge. A partition wall 9 is formed between the accommodating portions 4 and 5 of the main body 2 and the lid body 3 which are adjacent to each other.

For example, as shown in FIG. 2, among the side walls of the accommodating portions 4 and 5 of the main body 2 and the lid 3, side walls 7a and 8a connected to the free end flanges 7 and 8 opposite to the hinge portion 6, respectively.
In addition, two ribs 10 projecting outward are formed with a certain space therebetween. The ribs 10 are set to have substantially the same height as each of the partition walls 9, and the outer surface of the ribs 10 is formed to extend in an inclined shape so as to be continuous with the tip edges of the flanges 7 and 8. Therefore, the flanges 7 and 8 are not present at the rib 10.

In this case, the upper surface of the rib 10 of the lid 3 and the lower surface of the rib 10 of the main body 2 are formed horizontally, but as shown by the alternate long and short dash line 11 in FIG. It may be formed so as to extend in an inclined shape from 4a, 5a toward the tip edges of the flanges 7, 8. Each storage unit 4, 5
Since the ribs 10 are formed so as to be spaced apart from each other at two positions, the flanges 7 and 8 are exposed at the positions between the ribs 10 in each of the accommodating portions 4 and 5.

Then, as shown by the alternate long and short dash line in FIGS. 1, 2 and 5 and by the solid line in FIG. 6, the band-shaped adhesive tape 12 is shown.
The container 1 can be sealed by affixing with the ribs straddling the upper and lower ribs 10 and being laid over the ribs 10 adjacent to each other in the longitudinal direction of the flanges 7 and 8. The adhesive tape 12 is set to have a peelable adhesive strength.

In this case, since the outer surface of each rib 10 extends toward the tip edges of the flanges 7 and 8, the lid 3 is formed.
With the main body 2 covered, the rib 10 and the lid 3 of the main body 2
Since the outer surface with the rib 10 is continuous in a V shape, the adhesive tape 12 can be easily attached.
That is, in the case of manual work, the adhesive tape 12 may be pressed against the outer surface of each rib 10 as shown by the solid line and the dashed line in FIG. After advancing the tape 12 along the side surface of the container 1, the adhesive tape 12 can be attached very easily by moving the tape 12 while pressing it with a soft roller 13 having a V groove as shown by a chain double-dashed line in FIG. It is possible.

Further, the adhesive tape 12 can be easily peeled off by grasping the end portion by hand and pulling. Furthermore, since the container 1 is not damaged even if the adhesive tape 12 is peeled off, the container can be used repeatedly, and it is not necessary to attach a label such as a bar code to the container separately. The trouble of can be reduced.

Further, since the adhesive tape 12 is attached to the container 1 in a state of being bent in a V shape, the entire surface of the adhesive tape 12 can be visually recognized. Therefore, the entire surface of the adhesive tape 12 can be utilized. It is possible to provide various displays such as bar codes and product descriptions. In other words, the adhesive tape 12 functions not only as a sealing means but also as a display means capable of displaying various information.

Further, since the side walls of the accommodating portions 4 and 5 extend between the ribs 10 and the ribs 10 at the accommodating portions 4 and 5 over the entire length in the vertical direction, the rib 10 is provided as shown in FIG. Even if formed, the egg E can be held in a state in which it does not shift. In other words, the function of holding the egg E is not impaired due to the formation of the rib 10. The rib 10
That it has a reinforcing effect, that there are flanges 7 and 8 between the ribs 10, and that the main body 2 and the lid 3 are held in close contact with each other by the adhesive tape 12. It is possible to prevent the rigidity of the container 1 from decreasing due to the synergistic effect of being present.

By the way, this kind of egg container can be stacked in a state in which the concave and convex portions are fitted to each other by shifting the vertical and horizontal directions by half pitch, as conceptually shown in FIG. In this case, the outer surfaces of the accommodating portions 4 and 5 located on the free end side opposite to the hinge portion 6 are so-called dead spaces that do not interfere with the upper and lower containers in a stacked state. Even if the ribs 10 are formed as described above, the stacking can be freely performed without shifting the direction of the container 1 by alternately stacking them in a state in which the ribs 10 are vertically and horizontally shifted by half pitch and fitted together. Not only is it convenient for display, but it can also be stored in a cardboard box for transportation.
There is no reduction in the efficiency of accommodation in the cardboard box, and transportation costs can be reduced accordingly.

On the other hand, in Japanese Utility Model Publication No. 1-30335, the side walls of adjacent accommodating portions 4 and 5 are made continuous so that a label with a bar code can be attached to the egg container. Although it is described that a flat surface is formed by this, in this configuration, since the accommodation part cannot be fitted at the place where the side walls are connected, it is possible to fit a large number of containers alternately in the horizontal direction. They cannot be fitted together, so when they are stored in a cardboard box and transported, they are not fitted up and down,
They can be stacked only in a completely overlapping state in a plan view, which increases transportation costs.

That is, in Japanese Utility Model Publication No. 1-30335, the transportation cost is increased and the display is troublesome due to the fact that the bar code can be displayed. However, in the present invention, the display function is remarkably improved. However, there are no problems such as increased transportation costs and increased display labor. When a plurality of containers 1 are stacked in a vertically fitted state, they are fitted to each other up to the height of the partition wall,
It is more preferable to set the ribs 10 to the height of the partition walls 9 as well. One rib 10 may be formed in each of the accommodating portions 4 and 5.

FIG. 8 shows a second embodiment,
(B) is a BB sectional view of (A). In this embodiment, the base portion of the rib 10 with respect to the flanges 7 and 8 is formed in a vertical shape so that the flanges 7 and 8 are left in the portion of the rib 10 with a slight width. Further, the outer surface of the rib 10 is set at an angle so as to extend toward the tip edges of the flanges 7 and 8. Therefore, the adhesive tape 1
2 can be attached in a V shape.

According to this embodiment, since the rib 10 is present over the entire length at the free end of the container, there is an advantage that the reduction in rigidity can be prevented more reliably. FIG. 9 shows that the container 1 for eggs is provided with one container 4, 5
In the third embodiment, the side walls 4a, 5a and the rib 10 are continuously formed in a zigzag shape. If formed in this way, the area of attachment of the adhesive tape 12 to the ribs 10 can be reduced, so there is an advantage that even the adhesive tape 12 having a strong adhesive force can be reliably peeled off.

FIG. 10A shows a fourth embodiment applied to the box-shaped container 1, and FIG. 10B shows a fifth embodiment applied to the box-shaped container 1 as well. . Of these, in (A), the outer surface of the rib 10 formed intermittently along the flanges 7 and 8 is formed in an inclined shape, and in (B),
The ribs 10 of the main body 2 and the lid 3 are formed so as to be flush with each other.

FIG. 11 (A) shows a sixth embodiment in which notches 14 are formed in the upper and lower flanges 7 and 8 in the vicinity of the rib 10 located at the ends. In this way, the end of the adhesive tape 12 can be easily pinched. FIG. 11B shows a seventh embodiment in which the ribs 10 are formed on the main body 2 and the lid 3 one by one. In this case, the rib 10 is not provided over the entire length of the flanges 7 and 8 at the free end portion, but the flanges 7 and 8 are partially present at least at the free end portion (forming the ribs over the entire length reduces the strength. There are drawbacks).

FIG. 12 shows an example for facilitating the peeling of the adhesive tape 12, of which (A) forms a non-adhesive layer 12a at the end of the adhesive tape 12 and is used as a photographing portion. The eighth embodiment, which is formed, (B) is a ninth embodiment in which a small piece 15 is attached to an end portion of the adhesive tape 12 to form a photographing portion. In FIG. 11B, the outer surface of the rib 10 is formed in an arc shape.

FIG. 13 shows a tenth embodiment in which the portion of the rib 10 to which the adhesive tape 12 is attached is formed in an embossed shape having a large number of small irregularities. When formed in this manner, the adhesive tape 12 can be peeled off more easily. Although the embodiment of the present invention has been described above, the present invention can be applied to other types of containers such as a container manufactured by injection molding or a container manufactured of paper.

[0027]

As described above, according to the present invention, since the adhesive tape is in the shape of a dogleg or a flat state, the adhesive tape can be easily attached and the adhesive tape can be peeled off. It can be easily opened with a light force. In addition, since the area of the adhesive tape can be increased and the entire surface of the adhesive tape can be visually recognized, it is not necessary to provide a means for attaching a label or the like to the container, and thus the labor of display can be reduced accordingly.

In particular, when applied to a container for eggs as claimed in claim 2, since a plurality of containers can be fitted vertically while being staggered horizontally, the display function such as a bar code is impaired. Therefore, there is an advantage that the increase of the transportation cost can be avoided.

[Brief description of drawings]

FIG. 1 is a perspective view of a container according to a first embodiment.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a partial plan view of the container.

FIG. 4 is a sectional view taken along line IV-IV of FIG.

5 is a sectional view taken along line VV of FIGS. 2 and 3. FIG.

FIG. 6 is a perspective view showing a state in which it is sealed with an adhesive tape.

FIG. 7 is a conceptual diagram showing a stacked state of containers.

FIG. 8 is a diagram showing a second embodiment.

FIG. 9 is a diagram showing a third embodiment.

FIG. 10A is an overall perspective view showing a fourth embodiment,
(B) is a partial perspective view showing a fifth embodiment.

FIG. 11A is an overall perspective view showing a sixth embodiment,
(B) is a partial perspective view showing a seventh embodiment.

FIG. 12A is an overall perspective view showing an eighth embodiment,
(B) is a partial perspective view showing a ninth embodiment.

FIG. 13A is a partial cross-sectional view showing a tenth embodiment.

FIG. 14 is a diagram showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Main body 3 Lid body 4,5 Storage part 7,8 Flange 10 Rib 12 Adhesive tape

Claims (2)

[Claims] 1. A main body that opens upward and a lid that opens downward in a state of being overlapped with the upper surface of the main body are integrated via a bendable hinge portion on one side of the main body and the lid. A thin-walled packaging container that is connected to each other and has outward flanges that overlap each other at the opening edge of the main body and the opening edge of the lid body over the entire circumference except for the hinge portion or partially. There is a rib protruding toward the outside of the main body and the lid body on each of the side walls connected to the flange in the main body and the lid body, intermittently along the longitudinal direction of the flange, or the entire length of the flange. The thin-walled packaging is characterized in that it is formed to bulge so as to extend with an appropriate length, and that an adhesive tape can be attached in a state of straddling the ribs of the main body and the lid. Container. 2. The packaging container according to claim 1, wherein the main body of the packaging container has a lower constricted housing portion, and the lid body has an upper constricted housing portion, which are arranged in rows and columns. A packaging container for eggs formed by bulging, of the side walls of the accommodating parts of the main body and the lid, each side wall extending along the flange located on the free end side opposite to the hinge part, A thin-walled packaging container, characterized in that the rib is formed.