JPH07223690A - Egg pack - Google Patents

Abstract

PURPOSE:To provide an egg pack which has a large rigidity and which can accurately protect a small or longitudinally long egg and maintain its interior ventilation and can be also stacked. CONSTITUTION:A main body 10 and a lid 20 are integrally formed by a hinge part 30 to permit them to be opened and closed. The main body 10 is provided with a plurality of octagonally and conically trapezoidal recess parts 11 defined by the bent planes of the side part, a swollen part 19 projecting from the bottom of each recess part 11 in such a manner as to cushion an egg, a partition part 18 having an overlap preventing uneven surface part 18a between each adjacent recess part 11 and a freely movably engaging square post-like receiving part 13 having a depression 13b at its top in the central position of a block of the four recess parts 11. In a similar manner as above, the lid 20 is provided with a plurality of octagonally and conically trapezoidal recess parts 21, a partition part 28 having an overlap preventing uneven surface part 28a between each adjacent recess part 21 and a freely movably engaging projecting part engageable with the freely movably engaging receiving part 13 of the main body 10 in the central position of a block of the four recess parts 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an egg pack used for packaging and transporting eggs.

[0002]

2. Description of the Related Art In recent years, eggs that have been laid are packaged in an egg pack by an automatic machine such as an auto packer, transported to a consuming place by a roll inner, and displayed in a showcase at a store. In such an egg pack, generally, a main body having a plurality of recesses and a lid are continuously formed so as to be openable / closable by a gusset portion and integrally molded, and the recessed portion of the main body and the recess of the lid store the egg in a closed state. It is known that the space portion is defined.

When packaging by an autopacker, the above-mentioned many egg packs are stacked and mounted on the autopacker, the egg packs are taken out one by one, and the recesses of the taken out egg packs, for example, the main body. The eggs are housed in the concave portions of the rolls, and then the main body and the lid are closed and the roll inners are packed vertically.

[0004]

However, in the above-mentioned egg pack, when a large number of eggs are stacked in the auto packer, the egg packs come into close contact with each other and it is difficult to take them out one by one. There was a problem.
In the above-mentioned egg pack, as shown in FIGS. 9a and 9b, the egg E is brought into contact with the side wall portion 1b of the concave portion 1a of the main body 1 which is inclined in a conical shape so that the lower portion of the egg E is the bottom surface of the concave portion 1a. Since it is indispensable to protect it from directly contacting the side wall 1b, there is a problem that it is difficult to package a tapered egg (vertical egg) E or a small egg E that does not contact the side wall portion 1b. It was That is, in the conventional egg pack,
As shown in FIG. 9b, when a tapered egg (longitudinal egg) E or a small egg E is packaged, the lower part of the egg E comes into contact with the bottom surface of the concave portion 1a of the main body 1 and the egg E cannot be protected effectively. Note that FIG.
In a and b, 2 is a lid, and 2a is a recess formed in the lid 2.

Further, in the egg pack as described above, it is essential to ensure air permeability, and in order to ensure air permeability, measures such as additional machining of a hole in the top surface of the lid have been performed. . For this reason, there is a problem that the manufacturing cost is increased, and the vent hole formed on the top surface of the lid may be blocked when the egg packs are stacked during transportation, which ensures the air permeability during transportation. There was also the problem of lack of reliability. This invention has been made in view of the above problems,
Egg packs that can be taken out one by one even when stacked, egg packs that can also package vertically elongated eggs, and eggs that can ensure air permeability without increasing manufacturing costs. Intended to provide packs.

[0006]

To achieve the above object, the present invention provides a pack main body having a plurality of egg storage portions and engaging recesses, and a lid having a plurality of egg storage portions and engaging protrusions. An egg pack integrally formed of a synthetic resin sheet continuous with a body at a gusset portion, wherein the egg body of the pack body and the lid has a substantially octagonal truncated pyramid shape, and a longitudinal unevenness portion is formed on a peripheral surface thereof. And an egg supporting portion having an egg receiving concave portion is formed on the bottom surface of the egg accommodating portion of the pack main body so as to project inward.

According to the present invention, a partition wall is formed in the pack main body and the rectangular egg container of the lid at positions vertically and horizontally in contact with each other, and the partition wall is disposed in a direction orthogonal to the pack vertical direction. A mode in which a concave portion or a convex portion is formed on the upper surface of the partition wall portion, and uneven portions are formed on both longitudinal edges of the pack body and the lid body, and in the pack body and the lid body in the vicinity of the gusset portion. The present invention can be configured in such a manner that an abutting convex portion is formed at the facing position, and further that a perforation is formed in the gusset portion.

[0008]

According to the egg pack of the present invention, the egg accommodating portions of the main body and the lid are formed in a substantially octagonal truncated pyramid shape, and the partition wall portion and the like are formed by the continuous surfaces as the linear plane reference of the recess. Therefore, the shape based on the plane as a whole is achieved, high rigidity is obtained, and the packaged eggs can be made to look large optically and high commercial value is obtained. Further, since the low-rigidity egg bearing portion is formed in the bottom portion of the egg storage portion in the main body by the circular recess, the egg does not directly contact the bottom surface of the egg storage portion even when packaging a vertically long egg, Vertically long eggs can be reliably protected. In particular, the egg accommodating portion of the lid is formed into a substantially octagonal truncated pyramid shape in which the curved surface and the flat surface are alternately arranged. It can be pressed against the bearing and the eggs can be protected more reliably.

According to the claimed aspect of the present invention, the main body and the lid are each formed with unevenness for preventing overlapping on the partition wall partitioning the egg storage portion and stacked in the automatic packer. In some cases, the upper and lower egg packs are arranged at different positions where the concavities and convexities for preventing overlapping, that is, in such a way that they do not overlap. Therefore, it is possible to prevent the upper and lower egg packs from adhering to each other, and it is possible to reliably take out the egg packs one by one. Further, the main body and the lid body are formed with irregularities that bulge continuously with the side surface of each egg housing portion, and these are allowed to play together in the closed state, so that the main body and the lid body can be reliably united, It is possible to prevent slippage and protect eggs more reliably.

Further, according to the egg pack of the present invention, since the gusset portion is formed in a band shape having bent portions formed on both sides, the main body and the lid can be easily opened and closed, and the contact portion By forming and making contact with each other in the closed state, the main body and the lid can be prevented from being displaced, and the lid can be securely closed. Then, in addition to the configuration in which the gusset portion is formed in a strip shape and the abutment portion are formed, by forming the opening by curving the edge portion, it is possible to secure a large opening and ensure the air permeability. it can. Further, since the edge portion is formed with unevenness to increase rigidity, deformation can be suppressed, the opening is not blocked, and higher reliability can be obtained for ensuring air permeability.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 show an egg pack according to an embodiment of the present invention, FIG. 1 is an overall perspective view in a closed state, FIG. 2 is a plan view in an open state, FIG. 3 is a side view in the same open state, and FIG. Is a side view in a closed state, FIG. 5 is a schematic sectional view, FIG. 6 is a partially enlarged plan view, FIGS. 7a and 7b are schematic sectional views in an egg packaging state for explaining the action, and FIGS. 8a and 8b are partially enlarged. FIG.

In the figure, 10 is a main body having a substantially rectangular shape in a plan view (FIG. 1), 20 is a lid having the same planar shape as the main body 3, 3
Reference numeral 0 denotes a gusset portion that continuously opens and closes the main body 10 and the lid body 20, and the main body 10, lid body 20 and gusset portion 30 are integrally formed of a transparent resin such as vinyl chloride. The gusset portion 30 has a band shape with a predetermined width dimension, and perforations 31 are formed as bent portions on both sides thereof.

The main body 10 is provided with eight concave portions (egg accommodating portions) 11 that open inward, and a concave portion 11 and a partition wall portion 18 which are adjacent to each other.
The receiving portions 19b are formed by dividing into four rows in four rows and are formed on the bottom surface of the concave portions 11 in a partial spherical shape at the top.
A bulging portion (egg support portion) 19 having a ridge is projected. Recess 1
1 has a substantially octagonal truncated pyramid shape having a circular bottom surface and an upper opening in an octagonal shape, and its periphery (side portion) is defined by eight substantially trapezoidal planes. Each of the recesses 11 has a recessed groove 11a formed in each of eight side surfaces in the depth direction, that is, from the opening to the bottom surface, so that the rigidity of the side surface is increased.

The partition wall portions 18 each have a cross-sectional gate shape that is continuous in the plane of the upper surface of one of the adjacent recess portions 11 facing each other and project between the recess portions 11, and the partition wall portions 18 between the recess portions 11 in the column direction. Is a concave groove 1 on the upper plane to prevent it from overlapping.
8a is formed. As shown by the solid line, the chain line, and the broken line in FIG. 6, this groove 18a has different positions depending on the stacking order of the egg packs when stacked and supplied to the autopacker, for example, right, center and left. Etc., that is, different positions, that is, upper and lower egg packs in a state of being vertically overlapped with each other.

The bulging portion 19 has a circular shape concentric with the bottom surface of the concave portion 11 in plan view and bulges into the concave portion 11 in a partial spherical shape, and the receiving portion 19b is concentric with the bulging portion 11a in a partial spherical shape. Dent. The bulging portion 19 and the receiving portion 19b are configured to be deformable (see FIGS. 8a and 8b), and when an egg is housed in the recess 11a, the bulging portion 19 and the receiving portion 19b are deformed so as to lower the bulging height and the egg length becomes large. It is possible to store eggs.

Further, the main body 10 includes four loose receiving portions 13
Are bulged and formed at the center positions of the four recesses 11,
Six impact protrusions 12 are formed on the edge of the gusset portion 30 side. The play receiving portion 13 is composed of four flat surfaces that are continuous with the respective one flat surfaces of the four recessed portions 11 in the surroundings, that is, a substantially square prism-shaped prismatic portion 13a configured by sharing one side surface of each recessed portion 11. A cylindrical portion 13c having a cylindrical recess 13b formed on the upper portion is provided on the top (see FIG. 5). This play receiving part 13
Is formed so that the recess 13b in the upper portion fits with a convex portion of the lid body 20 described later, that is, fits to a considerable depth with a predetermined clearance.

The impact projection 12 has a triangular shape corresponding to each side of the octagonal opening of each recess 11 and is formed between the recesses 11 and between the end recesses 11 and the edge. These abutting projections 12 are bulged and molded to a predetermined height, and contact the abutting projections of the lid 20 described later in the closed state. It should be noted that the abutting protrusions 12 between the recesses 11 and the abutting protrusions 12 at the ends have different sizes as apparent from FIG. 2, but the distinction is omitted.

Further, as clearly shown in FIG.
The gusset portion 30 in an open state at the edge facing the gusset portion 30.
The seal portion 14 forming a higher plane is formed in a step shape to form the step bottom surface 15 at the edge portion orthogonal to the gusset portion 30 in a plan view, and further, the edge portion orthogonal to the gusset portion 30 has a large number of irregularities. The uneven pattern 17 is formed. Seal part 14
Has substantially the same height as the above-mentioned abutting convex portion 12, and is joined to the seal portion of the lid body 20 in a closed state by ultrasonic waves or heat fusion as will be described later. As shown in FIG. 4, the step bottom surface 15 constitutes a vent hole A that opens the recess 11 of the main body 10 and the recess of the lid 20 to the outside in the closed state. The uneven pattern 17 improves the rigidity of the edge portion.

Similar to the main body 10, the lid 20 is provided with ten recesses 21 and four loosely projecting projections 23 defined by the partition wall 28, and 6 at the edge of the gusset 30 side.
The two bump projections 22 are formed with a seal portion 24 at an edge portion facing the gusset portion 30, and a step bottom surface 25 and an uneven pattern 27 are formed at both edge portions orthogonal to the gusset portion 30 in a plan view. The recess 21 is
The bottom surface has an octagonal shape and the upper portion also has an octagonal opening, and is formed at a position facing the concave portion 11 of the main body 10 in the closed state to define the egg storage space section in the closed state. This concave portion 21 also has eight flat surfaces on its side portions, and each of the flat surfaces has a concave groove 2 extending in the depth direction.
1a is formed.

The partition wall portion 28 is formed by continuously connecting the upper surface of one surface forming the side wall of each adjacent recess 21 with a flat surface, and a groove 28a for preventing overlap is formed in this upper portion. The groove 28a is also formed so as to be located at different positions in the vertical direction when the egg packs are stacked, and prevents the egg packs from sticking in a stacked state.

The loose convex portion 23 is formed on the upper portion of a square columnar portion 23a of a quadrangular prism which bulges in a plane (a surface sharing a side surface with the concave portion 21) continuous with each one flat surface of the side walls of the four concave portions 21 in the periphery. A cylindrical convex portion 23b is provided, and the convex portion 23b engages with the recess 13b of the loose accepting portion 13 described above in the closed state. The seal portion 24 is higher than the height of the edge portion continuous with the gusset portion 30, and is joined to the seal portion 14 by ultrasonic waves or the like in the closed state. The step bottom surface 25 constitutes the vent hole A together with the step bottom surface 15 of the main body 10 described above, and the uneven pattern 27 improves the rigidity of the edge portion.

In the egg pack of this embodiment, a curved surface such as a cylindrical surface is entirely eliminated and a flat surface is formed, so that high rigidity can be obtained, the thickness can be reduced, and the manufacturing cost can be reduced. In particular, the egg pack of this embodiment has a body 1
0 and the lid 20 are formed on both edges of the concave and convex patterns 17 and 27,
Although the claws of the autopacker engage with the portions, the unevenness patterns 17 and 27 improve the rigidity, so that the wall thickness can be further reduced and the cost can be reduced. Further, in this egg pack, since the recesses 11 and 21 are each shaped like an octagonal pyramid and the whole egg storage space is polyhedral, optical effects such as making the packed eggs look larger can be obtained.

Also in this embodiment, a large number of egg packs are stacked in an open state (see FIG. 2), supplied to the auto packer in the stacked state, and taken out one by one by the auto packer. Eggs are automatically packaged in the packed egg pack by an auto packer. here,
The egg pack has a groove 18a on the partition wall 18 of the main body 10.
However, in the partition wall portion 28 of the lid 20, recessed grooves 28a are formed so as not to be at the same position in the upper and lower sides in a stacked state, and the recessed groove 1 is provided between the stacked egg packs.
A gap is formed by 8a and 28a. Therefore, it is possible to prevent the stacked egg packs from coming into close contact with each other, and it is possible to reliably take out the egg packs one by one. In addition, the egg pack is the main body 1
0 and the lids 20 have concavo-convex patterns 17 and 27 formed on both side edges to have great rigidity, so that a claw member such as an auto packer can be reliably hooked on the side edges at the time of taking out and taking out. Definitely done.

Next, in the taken-out egg pack, eggs are put into the recess 11 of the main body 10 by the auto packer, and the bulging portion 19 having the receiving portion 19b is formed on the bottom surface of the recess 11 of the main body 10 to buffer the eggs. Exert function. That is,
As is clear from the comparison of FIGS. 9a and 9b, even when a small egg is packaged, the egg is not only supported by contacting the side surface of the concave portion 11 but also supported by contacting the bulging portion 19, Eggs can be effectively protected and damages can be reliably prevented.

When the eggs are placed in all the recesses 11 of the main body 10, the lid 20 is folded and closed by the gusset portion 30, and the seal portion 14 of the main body 10 and the seal portion 24 of the lid body 20 are closed. Are bonded by ultrasonic waves or the like. At this time, since the main body 10 and the lid 20 can be bent at the perforations 31 on both sides of the gusset portion 30, the bending is also easy. Further, even when an egg having a large egg length is placed in the concave portion 11, the egg is closed when the lid 20 is closed.
When it comes into contact with the side wall of the concave portion 21, the bulging portion 19 is deformed and a small displacement is generated downward (see FIG. 8b), so that an egg with a long egg length can be packaged without fear of damage. In particular, the lid 20 is configured by alternately arranging the curved surface and the flat surface of the side wall of the concave portion 21, and since only the curved surface can be applied to the upper portion of the egg, an egg with a large egg length is in a proper state. Will be wrapped in. Further, in this egg pack, the main body 10 and the lid body 20 are closed, and the loose convex portion 23 and the loose receiving portion 13 loosely engage with each other to firmly combine, so that deviation and bending can be suppressed. .

After that, the egg pack in which the eggs are packaged is placed on the roll inner in a closed state where the seal portions 14 and 24 are adhered, and is transported to the place of consumption. Also, during transportation, the egg pack has a large rigidity as a whole so that the eggs can be surely protected, and the stepped bottom surfaces 15 and 25 form the large vent holes A on both sides so that they can be stacked. Can maintain breathability. In particular, the vent hole A is formed on the edge portion having greater rigidity by the uneven patterns 17 and 27, and the abutting convex portions 12 and 22 and the seal portions 14 and 24 having the height corresponding to the belt-shaped gusset portion 30 are formed. Since it is formed by the abutting bottom surfaces 15 and 25 in the abutting state, the opening area is reliably maintained. The pack can be expanded by tearing from one side using the perforations 31 provided on the gusset portion 30.

[0027]

As described above, according to the egg pack of the present invention, the egg accommodating portion of the main body and the egg accommodating portion of the lid forming the egg accommodating space are formed in a substantially octagonal truncated pyramid shape. In addition, since the partition wall portion, the loose convex portion, the loose receiving portion, and the like are formed by using a flat surface that is linked to the octagonal pyramid-shaped surface of these egg storage portions, the overall rigidity can be increased and the wall thickness can be reduced. In addition, since the egg bearing part that receives the bottom of the egg is formed on the bottom of the concave part of the main body, it is possible to reliably protect and package eggs with large egg length,
Further, since the groove for preventing overlapping is formed in the upper portion of the partition wall portion, even when stacked and supplied to the auto packer, the close contact can be prevented and the sheets can be reliably taken out one by one.

Further, in the above-described embodiment, the main body and the lid body are formed into a strip-shaped gusset portion having openable and closable continuous portions, and the main body and the lid body are provided with edge portions on the gusset portion side. The bulging portion, and the edge portions of the main body and the lid body that are orthogonal to the gusset portion in a plan view have an uneven pattern for improving rigidity. Since the vent hole is formed by forming the step bottom so that the edge facing the gusset part is lifted in a step shape, the vent area is prevented from being deformed and its opening area is reliably maintained. The vent is not blocked,
The effect that the breathability can be reliably retained is obtained.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an egg pack according to an embodiment of the present invention.

FIG. 2 is a plan view of the egg pack in an open state.

FIG. 3 is a side view of the egg pack in an open state.

FIG. 4 is a schematic side view of the egg pack in a closed state.

FIG. 5 is a schematic cross-sectional view of the egg pack.

FIG. 6 is a partially enlarged plan view of the egg pack.

FIG. 7 is a schematic cross-sectional view showing a state in which eggs of the same egg pack are stored, where a represents a case in which an egg of a normal size is contained and b represents a case in which a small egg (vertical egg) is housed.

FIG. 8 is an enlarged cross-sectional view of a part of the egg pack,
Indicates a state before storing eggs, and b indicates a state in which eggs are stored. same

FIG. 9 is an enlarged schematic cross-sectional view of a part of a conventional egg pack, in which a represents a state in which an egg of a normal size is contained and b represents a state in which a small egg is contained.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 main body 11 recessed part 11a recessed groove 12 hitting convex part 13 play receiving part 14 seal part 15 step bottom 17 uneven pattern 18 partition wall part 18a recessed groove 19 bulging part 20 lid 21 recessed part 21a recessed groove 22 bumped protruding part 23 Playing Convex Part 24 Sealing Part 25 Step Bottom 27 Uneven Pattern 28 Partition Wall 28a Recessed Groove A Opening

Claims (4)

[Claims] 1. A pack main body having a plurality of egg accommodating portions and an engaging concave portion and a lid body having a plurality of egg accommodating portions and an engaging protrusion are continuous at a gusset portion and integrally formed of a synthetic resin sheet. The egg container of the pack body and lid has a substantially octagonal truncated pyramid shape, and vertical irregularities are formed on the peripheral surface thereof, and the egg container is provided on the bottom surface of the egg container of the pack body. An egg pack, wherein an egg support portion having a receiving recess is formed so as to project inward. 2. A partition wall portion is formed at positions where the pack body and the horny egg container of the lid are in vertical and horizontal contact with each other,
A concave or convex portion is formed on the upper surface of the partition wall portion arranged in a direction orthogonal to the pack vertical direction of the partition wall portion, and a concave-convex portion is formed on both longitudinal end edges of the pack body and the lid body. The egg pack according to claim 1. 3. The egg pack according to claim 1 or 2, wherein the pack main body and the lid body are provided with a hitting convex portion at a facing position in the vicinity of the gusset portion. 4. The egg pack according to claim 1, 2 or 3, wherein perforations are formed on the gusset portion.