JP2004168399A - Chicken egg packaging container having insect preventive property - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chicken egg packaging container made of a plastic having insect preventive property which can be accurately and quickly fitted when a lid is placed. <P>SOLUTION: A container main body (A) and a lid body (B) which have an approximately rectangular contour shape on the plane with each other are kept under a fitted state with a fitting protruding step surface (15a) and a fitting indented step surface (15b) which are extended into a rail configuration only along shorter edge edging flanges (2a) and (2b) being in parallel. Longer edge edging flanges (1a) and (1b) extended on an opening/closing hinge (3) side are simply kept under a state being in total surface-contact with each other on the butted surface (L-L). Then, on three edges, the other longer edge edging flange extended on a remaining free end side and both shorter edge edging flanges, a plurality of peripheral partitioning protruding walls (16a) and (16b) which are scattered are set to keep the partial fitted state. At the same time, longer edge edging flanges on the free end side are set to be sealed into a closely joined state with an adhesive tape (10). <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plastic egg packaging container exhibiting insect repellency.
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 2002-179171 is known as a plastic egg packaging container exhibiting insect repellency. A breaking cord is provided on a bent portion (5) of the container body (1) and the lid (2). Products with (6) are on sale.
[0003]
[Problems to be solved by the invention]
However, in the configuration of the above-described known invention, as shown in FIGS. 14 to 16, all four sides or one long side continuous to each of the container body (1) and the lid (2) each having a rectangular planar contour shape are extracted. Since the sealing ridges (3) and the ridge fitting recesses (4) are fitted on the three continuous sides except for the only one, the temporary insect repellent sealing effect can be expected. It is difficult to quickly and accurately achieve the fitting state by the automatic mechanical force at the time of covering.
[0004]
In particular, in a product in which the cord (6) for breaking is attached to the bent portion (5) at the same time as the molding of the container, the cord (6) may not be arranged along the center line of the bent portion (5). In order to hinder easy and accurate half-folding, the sealing ridge (3) is continuously and integrally protruded from a position near the bent portion (5). It is not easy to properly fit the recess (4) by itself.
[0005]
Further, since the sealing ridge (3) has an inverted U-shaped cross section and is raised in a folded state, the sealing ridge (3) is sucked from below and, at the same time, is not pressed from above, but is closed. It is difficult to form the ridge (3) with high precision, and a common simple vacuum forming method cannot be adopted.
[0006]
In addition, the sealing ridge (3) is in an inverted U-shaped cross section, and all four sides or only one long side of each of the container body (1) and the lid (2) are removed. 14 and 15, a large number of stacked containers prepared in an unfolded state as shown in FIGS. 14 and 15 are sucked and transferred one by one onto a belt conveyor of an automatic egg packaging line by an automatic suction machine. In this case, it is not possible to accurately suck and separate the individual sheets.
[0007]
As a preventive measure, granular container adhesion preventing irregularities (P1) may be provided on the peripheral portion (15) of the container body (1) or the peripheral portion (25) of the lid (2), or the sealing ridge ( Since it is necessary to engrave a concave step surface (P2) for preventing container adhesion on the upright wall of 3), this type of egg packaging container used in large quantities is still inferior in mass production effect.
[0008]
[Means for Solving the Problems]
The present invention intends to improve such problems, and for this purpose, a container body vacuum-formed from a transparent or translucent thin plastic sheet material into a substantially rectangular planar contour shape having the same size as each other. A pair of lids is opened and closed by a half-fold opening / closing hinge with a fixed width interposed at the boundary between adjacent long-side edging flanges. Opening and closing the pivot that will come into contact
[0009]
Inside the compartment surrounded by the rim flange of the container body and the lid, a plurality of egg storage recesses which are depressed in the vertical direction opposite to each other from the joint plane, by partition grid walls in a vertically and horizontally orthogonal relationship. , Partitioning into a grid state where adjacent chicken eggs do not touch,
[0010]
From the vertical and horizontal orthogonal portions of each partition grid wall in the container body and the lid, an intermediate partition column that can be fitted at the time of covering is raised in a direction opposite to the egg storage recess,
[0011]
Similarly, from the portion where each partition grid wall of the container body and the lid intersects at right angles with both long side border flanges and both short side border flanges, a peripheral partition convex wall which can come into surface contact with the closed state at the time of covering is formed as above. In a chicken egg packaging container raised in the same direction as a plane contour shape of a thickness equally divided into two vertically divided partition columns,
[0012]
Of the peripheral partitioning convex walls scattered and distributed as a plurality on the container main body side, a long side rimming flange and both short side rimming flanges extending to the free end side of the container main body, and a right angle to the partition lattice wall. Only those located at the intersection are raised upward by a certain height from the joint plane,
[0013]
Similarly, the rail-shaped mating convex surface extending along both short side edging flanges on the container body side has a constant height from the above-mentioned joint plane until reaching a circular arc corner perpendicular to the remaining long side edging flanges. While only rising upwards
[0014]
The peripheral partitioning convex wall on the lid body, which can be fitted with the peripheral partitioning convex wall on the container body side at the time of covering, is provided with a long side edging flange and both short side edging flanges extending to the free end side of the lid. Only those located at the intersections that are perpendicular to the lattice wall, are depressed upward by a corresponding constant depth from the joint plane,
[0015]
Similarly, the fitting concave step surface on the lid body which can be fitted with the fitting convex step surface on the container body side at the time of covering is formed as a rail form extending along both short side edge flanges of the lid body, and the remaining two lengths Until the arc-shaped corner perpendicular to the rim flange, from the joint plane, it is depressed upward by a corresponding constant depth,
[0016]
The long-edge fringing flanges extending to the free ends of the container body and the lid at the time of covering are sealed with an adhesive tape so as to be in close contact with each other.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. In FIGS. 1 to 4 and FIGS. 6 to 13 showing the opened state and the covered state of the egg packaging container, (A) and (B) show the container body and the lid. It is a pair with the body, and is continuously and integrally vacuum-formed from polyethylene terephthalate, polystyrene, or other thin transparent or translucent thermoplastic plastic sheet materials into substantially rectangular planar contour shapes having the same size as each other.
[0018]
As the plastic sheet material, not only virgin material but also recycled material and an antibacterial sheet material effective for suppressing the growth of various bacteria attached to the egg (E) can be used. Brown or other colored colors may be applied.
[0019]
The specific configuration of the container body (A) and the lid (B), which are formed into a three-dimensional shape from the plastic sheet material by attracting and attracting to a vacuum forming die (not shown), can be described as (1a) ( 2a) is a parallel long edge flange and a short edge flange of the container body (A), and (1b) and (2b) are a parallel long edge flange and a short edge flange of the lid (B). Adjacent one long side edge flanges (1a) (1b) of the main body (A) and the lid (B) form a half-fold opening / closing hinge (3) having a constant band width (w) (for example, about 7 mm). The pivot is continuous through.
[0020]
Here, the opening / closing hinge (3) is formed as an arc-shaped surface that protrudes outward, and urges the container body (A) and the lid (B) appropriately and elastically in a direction in which the container body (A) and the lid (B) are always deployed. Moreover, on the arc surface of the opening / closing hinge (3) extending as the fixed band width (w), a container identification mark (4) of a different coloring color according to various sizes of the egg (E) is color-printed. I have.
[0021]
That is, since the size of the egg (E) is generally classified into four types, namely, LL, L, M, and MS, the identification mark (4) that can correctly select and use the egg packaging container according to the various sizes. For example, different single coloring colors for each size such as red, blue, orange, and green are provided.
[0022]
When such a container identification mark (4) is color-printed in a so-called solid printing state over the entire arc surface of the opening / closing hinge (3), the carrier of the printing ink is a thin transparent or translucent plastic sheet. Due to the material used, the printing ink is not fixed uniformly and firmly, the density of the coloring color is low, and it is difficult to see clearly. Therefore, color printing is performed as a halftone dot pattern as shown in FIGS. Is preferred.
[0023]
FIG. 5 shows a color printing method of a halftone dot pattern serving as the container identification mark (4). A specially prepared printing ink is applied from a metal intaglio roll (5) engraved with the halftone dot pattern to a rubber. Transfer to a transfer roll (6) made of hens, and between the transfer roll (6) and the pressing roll (7) made of urethane rubber, the egg packaging in a continuous unfolded state that has not yet been cut to a fixed size. By feeding the vacuum-formed product of the container, the halftone dot pattern serving as the container identification mark (4) may be color-printed on the arc surface of the opening / closing hinge (3) in a transferred state. (8) is an ink tray, and (9) is a doctor knife for scraping the printing ink.
[0024]
According to such a transfer method, the container identification mark (4) is automatically and continuously applied to the arc surface of the opening / closing hinge (3) of the egg packaging container vacuum-formed from a thin transparent or translucent plastic sheet material. Color printing can be performed without hindrance, and there is an effect that a fixing state in which the printing ink is rich in abrasion resistance and a high-density coloring state of a coloring color can be obtained.
[0025]
When the egg (E) is automatically stored in the egg packaging container by the automatic egg (E) packaging machine and is half-folded from the openable hinge (3), the container body (A) and the lid (B) The long side edge flanges (1a) and (1b) and the short side edge flanges (2a) and (2b) are in full contact with each other in the palm-jointed state. (LL) indicates the entire flat joint plane.
[0026]
Only the long side edge flanges (1a) (1b) facing the open / close hinge (3) on the free end side are tightly sealed by the band-shaped adhesive tape (10). When the user who has purchased the tape peels off the adhesive tape (10), the container body (A) and the lid (B) unfold themselves from the opening / closing hinge (3), and the chicken egg (E) is quickly taken out. be able to.
[0027]
In this case, with respect to the long side edge flanges (1a) and (1b) of the container body (A) and the lid (B), the free end side thereof has a wide width (for example, about 8 mm), and an opening / closing hinge parallel thereto. The (3) side has a different width as a narrow width (for example, about 1.5 mm). Despite the narrow width, the long side edging flange (L) between the container body (A) and the lid (B). 1a) (1b) Insects and other foreign matter enter the inside of the egg packaging container from both ends of the opening and closing hinge (3), which is bent into a substantially cylindrical shape when the lid is covered, because the comrades come into full contact with each other in the jointed state. There is no danger and the eggs (E) are kept in a sanitary condition.
[0028]
(11a) and (11b) respectively show the inside of a rectangular section in plan view surrounded by the above-mentioned rim flanges (1a) (1b) (2a) (2b) of the container body (A) and the lid (B). Partition lattice walls arranged in a vertical and horizontal perpendicular relationship such as 1 and 2, and all of them have a constant depth (d1) (h1) (h1) (h) which is almost equal to the opposite vertical direction from the joint plane (LL). (For example, about 18 mm).
[0029]
(12a) and (12b) are placed in a grid state where adjacent chicken eggs (E) do not come into contact with each other by the partition grid walls (11a) and (11b) corresponding to the container body (A) and the lid (B). 3 and 4, the egg storage recesses (12a) on the side of the container body (A) are fixed downward from the joint plane (LL) as shown in FIGS. In contrast to the depression (d2) (for example, about 38 mm), which is deeply depressed, the egg storage recess (12b) on the lid (B) side has a certain depth upward from the joint plane (L-L). (H2) (for example, about 28 mm), it is shallowly depressed.
[0030]
Moreover, the egg storage recesses (12a) and (12b) of the container body (A) and the lid (B) are almost frusto-conical or truncated, each of which gradually becomes narrower as it goes in opposite vertical directions. They form a regular octagonal pyramid and correspond to each other. Reinforcing ribs are provided on the bottom surface and the upright wall of the egg storage recess (12a) on the container body (A) side, and on the top surface and the upright wall surface of the egg storage recess (12b) on the lid (B) side. Although they are given, their reference numerals are omitted.
[0031]
(13a) and (13b) are relative to the egg storage recesses (12a) and (12b), respectively, from the vertical and horizontal portions of the partition lattice walls (11a) and (11b) in the container body (A) and the lid (B). A plurality of intermediate partition pillars which are raised in the opposite direction, and these are continuous with the upright wall surfaces of the above-mentioned egg storage recesses (12a) (12b), and gradually become thinner as they go in opposite vertical directions. It has a substantially truncated cone or truncated regular octagonal pyramid. Reinforcing ribs are also arranged on the upright wall surfaces of the intermediate partition columns (13a) and (13b), but their illustration symbols are omitted.
[0032]
The intermediate partitioning columns (13a) and (13b) between the container body (A) and the lid (B) are raised to almost the same height as the joint plane (LL). On the top surface of the intermediate partition column (13a) on the main body (A) side, a substantially truncated conical or conical convex receiving groove (14a) is downwardly directed at a predetermined depth (d3) (for example, about 5 mm). On the other hand, from the bottom surface of the intermediate partition column (13b) on the side of the lid (B), the insertion convex part (14b) that can be fitted into the convex part receiving groove (14a) of the container body (A) side. ) Are raised downward by a corresponding constant height (h3) (eg, about 5 mm).
[0033]
However, the male and female relationship is reversed, and the insertion protrusion (14b) is raised upward from the top surface of the intermediate partitioning column (13a) on the container body (A) side, and the protrusion reception groove (14a) is closed. Even if it is depressed upward from the bottom surface of the intermediate partition column (13b) on the (B) side, it may be acceptable.
[0034]
(15a) is a rail shape of a fixed length extending along both short side edging flanges (2a) on the container body (A) side, and at a circular arc corner perpendicular to the remaining long side edging flanges (1a). Until that time, a pair of fitting convex steps which are raised upward by a fixed height (d4) (for example, about 2 mm) from the joint plane (L-L), and (15b) are both sides of the lid (B) side As a rail form of a fixed length extending along the short side edging flange (2b), it corresponds from the above-mentioned joint plane (L-L) to the arc corner perpendicular to the remaining long side edging flanges (1b). A pair of fitting concave steps which are depressed upward by a predetermined constant depth (h4) (for example, about 2 mm). When the cover is covered, as is apparent from FIGS. The concave step surface (15b) and the fitting convex step surface (15) on the container body (A) side ) Are fitted, so that maintain the sealed state.
[0035]
The partition lattice walls (11a) and (11b) of the container body (A) and the lid (B) are formed by both long side edge flanges (1a) (1b) and both short side edge flanges (2a) (2b). ), The peripheral partitioning convex walls (16a) (16b) are raised along the same direction as the intermediate partitioning columns (13a) (13b).
[0036]
As shown in FIGS. 1 and 2, each of the peripheral partitioning convex walls (16a) and (16b) which are scattered and distributed as a plurality of the intermediate partitioning columns (13a) and (13b) having a substantially truncated cone or truncated octagonal pyramid shape. ) Is formed into a plane contour shape having a thickness equally divided into two vertically, and these also partition the egg storage recesses (12a) and (12b) between the container body (A) and the lid (B). Participate in doing. For this reason, reinforcing ribs are also arranged in rows on the upright wall surfaces of the peripheral partitioning convex walls (16a) (16b), but their illustration symbols are omitted.
[0037]
In this case, as shown in FIGS. 1, 2, and 9, at the portion where one of the short side edge flanges (2a) in the container body (A) and the partition lattice wall (11a) intersect at right angles, as shown in FIGS. By omitting the installation of the convex wall (16a), the upper half of the adjacent egg storage recesses (12a) is not partitioned, and the egg storage recesses (12a) are connected to each other on the short side of the container body (A). , A wide and flat barcode attaching surface (17) may be formed. (18) indicates a barcode label attached to the barcode attaching surface (17).
[0038]
Of the peripheral partitioning convex walls (16a) (16b) which are scattered and distributed as a plurality of pieces on the container body (A) and the lid (B), a narrow long side extending toward the hinge (3) side thereof. The flat top surfaces of the peripheral partitioning convex walls (16a) (16b) located at the intersections of the rim flanges (1a) (1b) and the partitioning lattice walls (11a) (11b) at right angles are as shown in FIG. At the same height position as the above-mentioned joint plane (LL), the peripheral partitioning convex walls (16a) and (16b) of the container body (A) and the lid (B) are put into a joint state when the lid is covered. It comes into surface contact.
[0039]
On the other hand, a wide long side edge flange (1a) and both short side edge flanges (2a) extending to the free end side of the container main body (A) and a right angle of the partition lattice wall (11a). The top surface of the peripheral partitioning convex wall (16a) located at the intersection is raised upward by a certain height (d5) (for example, about 5 mm) from the joint plane (LL) and rises. The outer wall surface of the portion is a flat insertion inclined surface (19a) and is in an inward inclined state in which the wide long-side edging flange (1a) and both short-side edging flanges (2a) maintain an obtuse intersection angle (θ). is there.
[0040]
Moreover, as is apparent from the illustrated values, the constant height (d5) of the peripheral partitioning convex wall (16a) is changed to be higher than the constant height (d4) of the fitting convex step surface (15a). ing.
[0041]
On the other hand, it is located at the intersection of a wide long side edge flange (1b) and both short side edge flanges (2b) extending to the free end side of the lid body (B) and the partition lattice wall (11b) at right angles. The top surface of the peripheral partitioning convex wall (16b) is depressed upward by a certain depth (h5) (for example, about 5 mm) corresponding to the joint plane (LL), and the depressed portion is formed. Is formed as a receiving inclined surface (19b) in an inclined state substantially parallel to the insertion inclined surface (19a) on the container body (A) side.
[0042]
The constant depth (h5) of the peripheral partitioning convex wall (16b) which is depressed upward from the joint plane (LL) is also larger than the constant depth (h4) of the fitting concave step surface (15b). And deeply changed, so to speak, in the form of steps.
[0043]
In other words, as shown in FIG. 11, when the lid is covered, a constant height (d5) is obtained from the wide long side edge flange (1a) and both short side edge flanges (2a) extending to the free end side of the container body (A). Insertion slope (19a) of the peripheral partitioning convex wall (16a) raised only upward, a wide long side edge flange (1b) and both short side edge flanges extending to the free end side of the lid (B). From (2b), the receiving inclined surface (19b) of the peripheral partitioning convex wall (16b) depressed upward by the opposite constant depth (h5) is fitted to each other, and the fitting is performed. Under this condition, the long-side edging flange (1a) extending to the free end side of the container body (A) and the corresponding long-side edging flange (1b) of the lid (B) engaging with the same are formed. , Sealed by the adhesive tape (10) It's that.
[0044]
In the egg packaging container of the present invention, as is apparent from the above configuration, the container main body (A) and the lid (B) are fixed along the parallel short-edge fringes (2a) and (2b) when the container is covered. The fitting state between the fitting convex step surface (15a) and the fitting concave step surface (15b) extending in the rail form by the length is maintained.
[0045]
The container body (A) and the lid (B) extend toward the preceding opening / closing hinge (3) due to the fact that the lid advances in a half-folded state from the opening / closing hinge (3). The long side edge flanges (1a) and (1b) only make full contact on the flat joint plane (L-L), and extend to the free end side where they finally come into full contact. On the three sides of the long side edging flanges (1a) and (1b) and the short side edging flanges (2a) and (2b), the peripheral walls of the container body (A) and the lid (B) 16a) (16b) Since the comrades are kept in a partially fitted state in which a plurality of them are scattered and distributed, the fitted convex step surface (15a) which is gradually fitted is fitted. The container body (A) and the lid (B) are used at the time of covering with the concave / convex step surface (15b) as a steadying guide. It can be self Dzuto accurately and quickly fitted.
[0046]
In that case, the constant height (d5) at which the peripheral partitioning convex wall (16a) on the container body (A) side protrudes upward from the joint plane (L-L) is also raised upward from the joint plane (L-L). The height of the fitting convex step surface (15a) is different from the constant height (d4) of the fitting convex step surface (15a), while the peripheral partition convex wall (16b) on the lid (B) side is shifted from the joint plane (LL). If the constant depth (h5) of the upward depression is changed to be deeper than the constant depth (h4) of the fitting concave step surface (15b) which also deviates upward from the joint plane (LL), The fitting of the container body (A) and the lid (B) at the time of covering can be performed more easily and accurately.
[0047]
Nevertheless, the container main body (A) and the lid (B) are in full contact with the long-side edging flanges (1a) and (1b) extending toward the opening / closing hinge (3) and in close contact with each other. In addition to keeping the fitting convex step surface (15a) and the fitting concave step surface (15b) extending along the parallel short side edge flanges (2a) and (2b), the remaining free end side Since the long side edge flanges (1a) and (1b) extending from each other are tightly sealed by the adhesive tape (10) in a state where they are in the palm of one another, there is no danger of insects and other foreign matter entering, The egg (E) can be maintained in a sanitary condition.
[0048]
Further, the egg packaging container of the present invention has a fitting protrusion extending in the form of a rail only along the parallel short-edge fringes (2a) and (2b) of the container body (A) and the lid (B). Since only the fitting state between the step surface (15a) and the fitting concave step surface (15b) is maintained, even if a large number of sheets are stacked in the unfolded state as shown in FIGS. Suction can be surely separated by the suction disk, and there is no possibility that the adjacent containers come into close contact with each other.
[0049]
【The invention's effect】
As described above, in the present invention, a pair of the container body (A) and the lid (B) vacuum-formed from a transparent or translucent thin plastic sheet material into a substantially rectangular planar contour shape of the same size as each other. The long side edge flanges (1a) and (1b) which are parallel to each other by means of a half-fold opening / closing hinge (3) having a constant band width (w) interposed between adjacent long side edge flanges (1a) and (1b). Comrades and short side edging flanges (2a) (2b) Combined pivotally continuous open / close freely so that the comrades come into full contact with each other in the jointed state,
[0050]
The inside of a section surrounded by the above-mentioned rim flanges (1a), (1b), (2a) and (2b) of the container body (A) and the lid (B) has a vertical direction opposite to the joint plane (LL). A plurality of the egg storage recesses (12a) and (12b) which are depressed are partitioned into grids in which adjacent eggs (E) do not come into contact with each other by partition grid walls (11a) and (11b) which are vertically and horizontally perpendicular to each other. Classify,
[0051]
From the vertical and horizontal orthogonal portions of each of the partition lattice walls (11a) and (11b) in the container body (A) and the lid (B), the intermediate partition columns (13a) and (13b) that can be fitted at the time of covering are provided with the above-mentioned egg storage recesses. While being raised in the direction opposite to the places (12a) and (12b),
[0052]
Similarly, the partition lattice walls (11a) and (11b) of the container body (A) and the lid (B) are at right angles to both long side edging flanges (1a) and (1b) and both short side edging flanges (2a) and (2b). From the portion that intersects, the peripheral partitioning convex walls (16a) (16b) that can come into surface contact with each other in the closed state when the lid is closed are divided into two planes by vertically dividing the intermediate partitioning columns (13a) (13b) into two planes. In the egg packaging container raised in the same direction as the shape,
[0053]
Of the peripheral partitioning convex walls (16a) that are scattered and distributed as a plurality on the container body (A) side, a long side edging flange (1a) extending to the free end side of the container body (A) and both short sides Only those located at the intersections of the rim flange (2a) and the partition lattice wall (11a) at right angles are raised upward by a certain height (d5) from the joint plane (LL),
[0054]
Similarly, a rail-shaped fitting convex step surface (15a) extending along both short side edge flanges (2a) on the container body (A) side is formed into a circular arc corner perpendicular to the remaining long side edge flanges (1a). Up to the part, from the above-mentioned joint plane (L-L) by a certain height (d4),
[0055]
The peripheral partition convex wall (16b) on the lid body (B) side, which can be fitted to the peripheral partition convex wall (16a) on the container body (A) side at the time of covering, is provided on the free end side of the lid body (B). Only the extended long side flange (1b) and those located at the right-angled intersection of the two short side edge flanges (2b) and the partition lattice wall (11b) from the joint plane (LL). Depressed upward by a corresponding constant depth (h5),
[0056]
Similarly, the fitting concave step surface (15b) on the lid body (B) side, which can be fitted to the fitting convex step surface (15a) on the container body (A) side at the time of covering, is attached to both sides of the lid body (B). As a rail form extending along the short side edging flange (2b), a corresponding constant depth from the joint plane (L-L) up to a circular arc corner perpendicular to the remaining long side edging flanges (1b). It is depressed upward only by h (h4),
[0057]
The long side edge flanges (1a) and (1b) extending to the free end side of the container body (A) and the lid body (B) at the time of covering are tightly sealed by an adhesive tape (10). Therefore, the problems of the prior art described at the beginning can be completely improved, and the container main body (A) and the lid (B) can be connected to each other, despite the fact that a sealed state with a high insect repellent performance can be obtained. Is easily and accurately fitted.
[0058]
In particular, if the constitutions of claims 2 and 3 are adopted, the container body (A) and the lid body (B) cover the container in a half-folded state from the opening / closing hinge (3). Since the main body (A) and the lid (B) can be fitted more quickly and accurately, the effect of reliably sucking and separating the stacked containers one by one in the developed state is also promoted.
[0059]
Furthermore, if the configuration of claim 4 is adopted, a clear container identification mark (4) is colored on its arc surface by utilizing the opening / closing hinge (3) between the container body (A) and the lid (B). It can be printed and is useful for selecting and using containers according to various sizes of eggs (E).
[Brief description of the drawings]
FIG. 1 is a perspective view showing a deployed state of a chicken egg packaging container according to the present invention.
FIG. 2 is a plan view of FIG.
FIG. 3 is an enlarged sectional view taken along line 3-3 in FIG.
FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 2;
FIG. 5 is an explanatory diagram showing a method for printing a container identification mark.
FIG. 6 is a plan view showing a cover state of FIG. 2;
FIG. 7 is an enlarged front view of FIG. 6;
FIG. 8 is a left side view of FIG. 7;
FIG. 9 is a right side view of FIG. 7;
FIG. 10 is a sectional view taken along line 10-10 of FIG. 9;
FIG. 11 is a sectional view taken along line 11-11 of FIG. 10;
FIG. 12 is a sectional view taken along line 12-12 of FIG. 9;
FIG. 13 is a sectional view taken along line 13-13 of FIG.
FIG. 14 is a perspective view showing a conventional egg packaging container in an unfolded state.
FIG. 15 is a side view of FIG. 14;
FIG. 16 is an enlarged side sectional view showing a cover state of FIG. 15;
[Explanation of symbols]
(1a) (1b) ・ Long side edging flange (2a) (2b) ・ Short side edging flange (3) ・ Opening hinge (4) ・ Container identification mark (10) ・ Adhesive tape (11a) (11b) ・ Partition grid Walls (12a) (12b), egg storage recesses (13a), (13b), intermediate partitioning columns (14a), convex receiving grooves (14b), insertion convexes (15a), mating convex steps (15b)・ Concave concave step surfaces (16a) (16b) ・ Protruding partition wall (17) ・ Barcode sticking surface (19a) ・ Insertion inclined surface (19b) ・ Receiving inclined surface (A) ・ Container body (B) ・Lid (E), Egg (LL), Gassho plane

Claims (4)

A pair of a container body (A) and a lid (B) vacuum-formed from a transparent or translucent thin plastic sheet material into a substantially rectangular planar contour shape of the same size, and adjacent long-side fringing flanges (1a) (1b) Parallel long-side edging flanges (1a) (1b) and short-side edging flanges (2a) by means of a half-fold opening / closing hinge (3) having a constant band width (w) interposed at the boundary between the two. (2b) Opening and closing the pivots continuously so that the comrades come into full contact with each other,
The inside of a section surrounded by the above-mentioned rim flanges (1a), (1b), (2a) and (2b) of the container body (A) and the lid (B) has a vertical direction opposite to the joint plane (LL). A plurality of the egg storage recesses (12a) and (12b) which are depressed are partitioned into grids in which adjacent eggs (E) do not come into contact with each other by partition grid walls (11a) and (11b) which are vertically and horizontally perpendicular to each other. Classify,
From the vertical and horizontal orthogonal portions of each of the partition lattice walls (11a) and (11b) in the container body (A) and the lid (B), the intermediate partition columns (13a) and (13b) that can be fitted at the time of covering are provided with the above-mentioned egg storage recesses. While being raised in the direction opposite to the places (12a) and (12b),
Similarly, the partition lattice walls (11a) and (11b) of the container body (A) and the lid (B) are at right angles to both long side edging flanges (1a) and (1b) and both short side edging flanges (2a) and (2b). From the portion that intersects, the peripheral partitioning convex walls (16a) (16b) that can come into surface contact with each other in the closed state when the lid is closed are divided into two planes by vertically dividing the intermediate partitioning columns (13a) (13b) into two planes. In the egg packaging container raised in the same direction as the shape,
Of the peripheral partitioning convex walls (16a) that are scattered and distributed as a plurality on the container body (A) side, a long side edging flange (1a) extending to the free end side of the container body (A) and both short sides Only those located at the intersections of the rim flange (2a) and the partition lattice wall (11a) at right angles are raised upward by a certain height (d5) from the joint plane (LL),
Similarly, a rail-shaped fitting convex step surface (15a) extending along both short side edge flanges (2a) on the container body (A) side is formed into a circular arc corner perpendicular to the remaining long side edge flanges (1a). Up to the part, from the above-mentioned joint plane (L-L) by a certain height (d4),
The peripheral partition convex wall (16b) on the lid body (B) side, which can be fitted to the peripheral partition convex wall (16a) on the container body (A) side at the time of covering, is provided on the free end side of the lid body (B). Only the extended long side flange (1b) and those located at the right-angled intersection of the two short side edge flanges (2b) and the partition lattice wall (11b) from the joint plane (LL). Depressed upward by a corresponding constant depth (h5),
Similarly, the fitting concave step surface (15b) on the lid body (B) side, which can be fitted to the fitting convex step surface (15a) on the container body (A) side at the time of covering, is attached to both sides of the lid body (B). As a rail form extending along the short side edging flange (2b), a corresponding constant depth from the joint plane (L-L) up to a circular arc corner perpendicular to the remaining long side edging flanges (1b). It is depressed upward only by h (h4),
It is assumed that the long side edge flanges (1a) and (1b) extending to the free ends of the container body (A) and the lid (B) at the time of covering are tightly sealed with an adhesive tape (10). Characteristic insect-resistant chicken egg packaging container. The fixed height (d5) of the peripheral partitioning convex wall (16a) protruding upward from the joint plane (LL) on the container body (A) side is also fitted upward from the joint plane (LL). While changing the height differently than the constant height (d4) of the convex step surface (15a),
A certain depth (h5) of the peripheral partitioning convex wall (16b) which is depressed upward from the joint plane (L-L) on the lid (B) side is similarly fitted downward from the joint plane (L-L). 2. The insect-proof chicken egg packaging container according to claim 1, wherein the depth of the step is greater than a certain depth (h4) of the concave-convex step surface (15b). The outer peripheral surface of the peripheral partitioning convex wall (16a) protruding upward by a certain height (d5) from the joint plane (LL) on the container main body (A) side as a flat insertion inclined surface (19a), (A) is formed into an inwardly inclined state in which a long side edge flange (1a) and both short side edge flanges (2a) at the free end side maintain an obtuse intersection angle (θ).
The outer wall surface of the peripheral partitioning convex wall (16b), which is depressed upward by a corresponding constant depth (h5) from the joint plane (LL) on the lid (B) side, is received by the insertion inclined surface (19a). The insect-resistant chicken egg packaging container according to claim 1, characterized in that the inclined surface (19b) is formed in an inclined state substantially parallel to the insertion inclined surface (19a) on the container body (A) side. A container identification mark (4) of a single color different according to various sizes of the chicken egg (E) is color-printed as a halftone dot pattern on the opening / closing hinge (3) between the container body (A) and the lid (B). The insect-resistant chicken egg packaging container according to claim 1, characterized in that:

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