JPH06385Y2 - Egg container made of plastic - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to improvement of a plastic egg container used in a distribution process.

<Prior art> Generally, this egg container is used as a consumable item, and is about 0.15 to 0.2 mm.
It is vacuum-molded from the extremely thin transparent thermoplastic sheet material, and its structure is a dotted open state in which a plurality of egg storage recesses correspond to the container body and lid that are continuous via an opening / closing hinge. Are distributed in.

Then, the container body and the lid body are urged from the opening / closing hinge to be constantly deployed, and after automatically mechanically inserting an egg into the egg storage recess of the container body, the container body and the lid are in a half-folded state from the opening / closing hinge. It is customary for the lids to be sealed and heat sealed.

<Problems to be Solved by the Invention> The above-mentioned vacuum-molded egg containers are stacked in tens of sheets as the container body and the lid are in a developed state, and are punched at once by a press machine. become.
Further, in the above-mentioned automatic mechanical egg storage work, the egg container is arranged around the egg container transporting belt conveyor as a developed state of the container main body and the lid body, and is stacked and prepared in a tall state. Then, the sheets are sequentially vacuum-sucked one by one and transferred onto the belt conveyor. Furthermore, even when the egg container is transported or stored, thousands of the egg containers are stacked and compressed in the same expanded state of the container body and the lid.

In such a case, since the egg containers are extremely thin and are charged with static electricity, the adjacent egg containers in the stacked state come into close contact with each other. It is difficult to reliably and quickly separate them. In particular, if several eggs are inadvertently vacuum-sucked during the above-mentioned egg storage work, it is necessary to stop the movement of the machine, which also reduces the work efficiency.

<Means for Solving the Problem> The present invention intends to improve such a problem, and for that purpose, a rectangular container which is vacuum-molded integrally from a transparent plastic sheet into a container body and a lid body, which mutually cooperate. With an open flange having a different contour, one of the long sides of the flange serves as an opening / closing hinge, and the container body and the lid are constantly deployed in a biased state, and in a half-fold shape while resisting the biasing force. In addition to being pivotally connected so that the lid can be covered, the whole of the lattice arrangement is defined by partition ribs in the container main body and the lid, which have a plurality of egg storage recesses that correspond to each other when the lid is covered in a vertical and horizontal direction. In the egg container formed as compartments as described above, the surface of the partition rib that defines the egg storage recess of the container body or / and the lid is provided with at random random satin-like or particle-like container adhesion preventing unevenness. First In the same plastic egg container as described above, at random random satin-like or particle-like irregularities for preventing container adhesion are formed on the plane of the opening flange forming the contour of the container body and / or the lid. The second characteristic is that it is given.

<Operation> According to the above configuration of the present invention, the at-part is formed on the flat surface of the partition rib that defines the egg storage recess of the container body and / or the lid.
Random satin-like or particle-shaped unevenness for preventing container adhesion is provided, so the egg container is packed, transported, and stored, and when the mechanical egg storage work is performed, the container body and lid are unfolded. Even when stacked, it is possible to effectively prevent the adjacent egg containers from sticking to each other due to static electricity, etc., and if it is thin and transparent by itself, it will be possible to accurately and simply separate the leopards one by one. Such an effect can be achieved substantially equivalently even by the configuration in which the unevenness for preventing container adhesion is applied to the plane of the opening flange in the container body and / or the lid.

<Embodiment> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated embodiment. In FIGS. 1 to 4 showing the developed state of the egg container, (A) and (B) indicate the container body. It is a pair with the lid and is vacuum formed integrally and continuously from an extremely thin transparent thermoplastic sheet material. That is, the inner surface side of the egg storage recess described later is attracted and adsorbed by the vacuum force to the shaping surface of the vacuum molding die (not shown).

Container body (A) and lid body (B) shaped by the mold
Speaking of the configuration of, (11a) (11b) is a strip-shaped projecting opening flange of a rectangular contour that fits together when the lid is applied,
One of its long sides is an opening / closing hinge (12), which is pivotally connected to each other so that it can be half-folded, but is normally urged in the expanding direction. After the eggs (M) are stored, as is apparent from FIGS. 5 and 6, a lid is placed against the biasing force of the eggs (M), and a heat seal () is formed on the other long side facing the opening / closing hinge (12). It will be sealed by applying 13).

(14a) and (14b) are a plurality of (10 in total in the figure) egg storage recesses that are partitioned and formed in the container body (A) and the lid body (B) as an overall lattice arrangement in which they are scattered. That is, the opening flanges (11a) and (11b) stand upright in the opposite vertical directions from the plane, and each egg (M) is stably encapsulated while correspondingly conforming when the lid is applied. The egg storage recess
Each of (14a) and (14b) has an opening in a basic octagonal outline shape in flat / bottom view, and it is a truncated pyramid type that gradually becomes thinner toward the tip in the rising direction. Is presenting.

In that case, as is clear from FIGS. 3 to 6, the egg storage recess (14a) on the container body (A) side is slightly taller than the egg storage recess (14b) on the lid (B) side. Standing high, the egg (M) is safely escaped as it moves away from the ground plane of the container itself. (15a) (15b) are each egg storage recess (14
a) Reinforcing ribs are provided on the pyramidal surface of (14b) in the form of convexo-concave lines in the vertical direction, which impart shape retaining strength on the egg support.

(16a) (16b), between the adjacent egg storage recesses (14a) (14b) adjacent to each other, at a mid-height position rising from the plane of the opening flanges (11a) (11b), in the horizontal and vertical directions in a flat / bottom view. This is a partition rib that connects together along with the egg storage recess.
The whole of (14a) and (14b) is divided into the above-mentioned lattice arrangement form to prevent the adjacent eggs from contacting each other.

When viewed from above and below, the partition ribs (16a) and (16b) are strip-shaped with a constant width (W1) (W2) and extend along the vertical and horizontal directions. ) Side egg storage recess (1
Between the 4a) and the egg storage recess (14b) on the lid (B) side,
Since the rising heights (H1) (H2) are changed differently, the band widths (W1) (W2) of the partition ribs (16a) (16b) are narrow on the container body (A) side and the lid body ( It becomes wider on the B) side.

(17) is at the vertical and horizontal intersections of the partition ribs (16a) and (16b),
A fitting protrusion raised from either the container body (A) or the lid (B), and (18) is a fitting groove formed corresponding to the other, so that they fit properly when the lid is applied. In addition, the positional deviation between the container body (A) and the lid body (B) is prevented. (1
9) is an at-random satin-like or particle-like unevenness for preventing container adhesion provided on the flat surface of the partition rib (16a) having the above-mentioned constant band width (W1) in the container body (A), which is vacuum formed. It will be roughened by the shaping surface of the mold.

This is to prevent the adjacent egg containers from sticking to each other and becoming difficult to separate when the egg containers are stacked in the expanded state. In that case, for example, it is possible to give irregularities in a rail form that are regularly arranged in parallel or intersect to the plane of the partition rib (16a), but if it has the regularity, the egg containers in a developed state are stacked. At that time, the adjacent unevennesses of the two sides exactly match each other,
On the contrary, since it is difficult to separate and will adhere to each other at a high degree, at random random particle-like or satin-like unevenness (19)
As, it is preferable to roughen the surface.

Further, in the illustrated embodiment, the container contact prevention unevenness (19) is provided on the partition rib (16a) on the container body (A) side, because the egg (M) is stored in a sold state. The point is that the appearance and makeup effect can be stimulated. However, as shown in the modified example of FIG. 7, the unevenness (19) can be provided on the flat surface of the partition rib (16b) in the lid (B), and the container body (A) side and the lid. Both partition ribs (16a) and (16b) on the (B) side,
The surface may be roughened by providing the unevenness (19).

Further, in the illustrated embodiment, the flat surface of the partition ribs (16a) (16b) at the mid-height position where the egg storage recesses (14a) (14b) rise from the opening flanges (11a) (11b) are vacuum-formed. Due to the shaping surface of the metal mold, the surface-roughened surface is formed as the satin-finished or particulate unevenness (19). The reason is this partition rib (16a)
At the formation location of (16b), when the egg containers in the expanded state are stacked, the adjacent ones will be deeply engaged with each other, so to speak, as compared to the location where the flat planes are in a simple chiseling state, they are very close to each other. Because it is easy.

However, instead of or in addition to the above-mentioned partition ribs (16a) (16b), as shown in another modification of FIG. 8, the contour of the container body (A) or / and the lid (B) is On the plane of the opening flanges (11a) (11b) to be formed, irregularities (19) for preventing the container from adhering in a satin or particle shape that are randomly scattered at that time (19),
It may be applied in whole or in part.

<Effect of the Invention> As described above, in the present invention, the container body (A) and the lid body (B) integrally vacuum-formed from the transparent plastic sheet material.
In addition, a rectangular contoured opening flange (11a) that mate with each other
(11b) is projected, and one of the long sides is used as an opening / closing hinge (12), so that the container body (A) and the lid body (B) are always in the urged state and the urging force is applied. The container body (A) and the lid body (B) are connected to each other so that the lid can be folded in a half-folded manner while being opposed, and the egg storage recesses (14a) and (14b) corresponding to each other when the lid is applied are provided. In an egg container formed by partitioning a plurality of partition ribs (16a) (16b) in a vertical and horizontal direction as a whole in a lattice arrangement, the container body (A) or / and the lid (B) is used for storing eggs. Recess
(14a) (14b) partition ribs for partitioning (16a) (16b) on the plane, at random random satin-like or particle-like irregularities for preventing container adhesion (19), so described at the beginning There is an effect that the problems of the conventional technology can be surely improved.

That is, at least random satin-like or particle-like container adhesion prevention should be performed on the flat surface of the partition ribs (16a) and (16b) that should divide the plurality of egg storage recesses (14a) and (14b) into an overall lattice arrangement. Unevenness
Since (19) is added, even if the egg containers are stacked as shown in FIG. 9 with the container body (A) and the lid (B) in a developed state, the adjacent egg containers will not be adjacent to each other. It is difficult to separate due to static electricity, etc.
As a result, the egg containers in a stacked state can be checked manually not only manually but also in soccer and other automatic machines.
Since it can be easily separated, workability is significantly improved.

Then, such an effect can be achieved almost in the same manner even if the configuration described in claim 2 is adopted. Particularly, as in the illustrated embodiment, the partition rib (16a) on the container body (A) side
If the unevenness (19) is applied by the shaping surface of the vacuum molding die, the unevenness (19) becomes difficult to be seen from the outside when the egg (M) is stored in the lid / sales state. ,
There is also no fear that the cosmetic makeup effect of the entire egg container will be deteriorated.

[Brief description of drawings]

1 and 2 are general schematic oblique views and plan views showing the developed state of the egg container according to the present invention, and FIGS. 3 and 4 are sectional views taken along lines 3-3 and 4-4 of FIG. 2, FIGS. 5 and 6 are enlarged cross-sectional views showing the covered state corresponding to FIGS. 3 and 4, and FIGS.
FIG. 9 is a perspective view showing two kinds of modified examples corresponding to the drawings, and FIG. 9 is a sectional view showing a state in which the egg containers are developed and stacked. (11a) (11b) ・ ・ Opening flange (12) ・ ・ ・ Opening / closing hinges (14a) (14b) ・ ・ Egg storage recesses (16a) (16b) ・ ・ Partition ribs (19) ・ ・ ・... Concave / convex (A) --- Container body (B) --- Lid

Claims (2)

[Scope of utility model registration request] 1. A container body (A) and a lid body (B) integrally vacuum-molded from a transparent plastic sheet material are provided with opening flanges (11a) and (11b) having rectangular contours which are fitted with each other. One of the long sides is used as an opening / closing hinge (12) so that the container body (A) and the lid body (B) are in an urging state in which the container body (A) and the lid body (B) are always deployed, and a half-fold shape is formed against the urging force. The container body (A) and the lid body (B) are provided with a plurality of egg storage recesses (14a) and (14b) corresponding to each other at the time of application of the lid so as to be continuous in a vertical and horizontal directions while being continuously pivotally supported so that they can be covered. In an egg container partitioned and formed as a whole lattice arrangement state by related partition ribs (16a) (16b), an egg storage recess of the container body (A) and / or lid (B)
(14a) (14b) partition ribs that partition the (16a) (16b) plane, at random random satin-like or particulate container adhesion prevention unevenness (19) Egg container. 2. A container body (A) and a lid body (B) integrally vacuum-molded from a transparent plastic sheet material are provided with opening flanges (11a) and (11b) having rectangular contours which are fitted with each other. One of the long sides is used as an opening / closing hinge (12) so that the container body (A) and the lid body (B) are in an urging state in which the container body (A) and the lid body (B) are always deployed, and a half-fold shape is formed against the urging force. The container body (A) and the lid body (B) are provided with a plurality of egg storage recesses (14a) and (14b) corresponding to each other at the time of application of the lid so as to be continuous in a vertical and horizontal directions while being continuously pivotally supported so that they can be covered. In an egg container partitioned and formed as a whole lattice arrangement by related partition ribs (16a) (16b), opening flanges (11a) (11b) that shape the outline of the container body (A) and / or lid (B). ) On the flat surface of at least random satin-finished or particle-like container contact prevention unevenness (19). Plastic egg containers and butterflies.