JP4729091B2 - Egg packaging container - Google Patents

Description

  The present invention relates to a chicken egg comprising a container body in which a plurality of recesses for individually accommodating chicken eggs are formed by bulging and molding a generally known sheet material made of synthetic resin, and a lid covering the upper surface thereof It relates to a packaging container. More specifically, the present invention relates to a container having a substantially flat surface suitable for attaching a label on the surface of a lid.

  As is generally known, a conventional egg packaging container formed by bulging and molding such a synthetic resin sheet material is roughly divided into a plurality of receiving recesses that can individually accommodate the lower half of the egg, and is separated by a column. A container comprising a container body formed in an open state and a lid formed by arranging a plurality of recesses individually covering the upper half of the egg, and a lid configured to cover substantially the entire upper part of the container body There is a container consisting of the body. As described above, the present invention is directed to the latter container having a substantially flat surface suitable for attaching a display label such as a product to the lid.

  The container is designed to maintain the quality of the eggs, regulate the positional relationship of the stored eggs, and prevent the eggs from touching and damaging during transportation, etc. A plurality of recessed support columns are formed in a cylindrical shape hanging from the plate.

  However, this recessed support post is required to make the label sticking surface as large as possible, especially from the request to stick the label to both ends in the container longitudinal direction. In the lid of the container in which five eggs in one row and two tiers in front and rear, and a total of ten egg-containing recesses are formed, of the four struts formed on the container main body, There are also some indented struts formed in only two places.

  However, in this way, in the case where the recessed struts are formed in the lid at only two locations near the center without corresponding to all four struts in the container body, both ends of the container in the longitudinal direction of the container and Contact between chicken eggs accommodated in adjacent central portions could not be prevented, which was one of the causes of the occurrence of egg breaking.

  Therefore, the present inventor considered that the area where the label is affixed is not significantly reduced while the container has a structure in which recessed struts are provided on both ends in the longitudinal direction of the lid. A container with a structure has already been developed and proposed in advance as seen in US Pat.

This egg wrapping container is a container having a lid with a wide flat surface, and the lid corresponds to the main body-side support columns that are erected at four locations in the longitudinal direction of the container body. The four indented struts are formed by hanging down from four positions on the lid body side, and two of the recessed struts located on both ends in the longitudinal direction of the lid body are arranged in the longitudinal direction of the lid body. The structure is such that the portion facing the outer side in the longitudinal direction is shortened so that the concave start point is located in a state where a flat surface having a predetermined area is left on both ends.
Japanese Patent No. 3546252

  However, the prior art egg packaging container having such a structure has a structure in which the support of the label is supported by the struts of the container body and the lid firmly contacting each other at four positions in the longitudinal direction, but the label adhesive area Can achieve the intended purpose of being wide and well pasted, and it is a container that is several steps superior to the conventional structure and easy to use, but this was mass-produced and provided to the market When a specially deformed lid is used, the recessed struts at both ends in the longitudinal direction are likely to be locally thinner than the bottom of the other recessed struts at the bottom of the recessed portion. It came to investigate that the subject that the case where it became a state which cannot maintain a sufficient compressive deformation strength occurred occurred.

  Therefore, the present inventor maintains the same productivity as the previously developed egg container, is a container that can be produced at a low cost using a sheet material of the same thickness, and is labeled on the top plate surface of the lid The present invention is developed for the purpose of providing a container for egg wrapping that has the advantage of having a sufficient area for adhering, and that can sufficiently protect the eggs contained therein in use. Has been reached.

  The egg packaging container of the present invention taken to achieve the object will be described using the same reference numerals as those in the drawings showing the embodiment. The main structure is a container formed by bulging a synthetic resin sheet material. And a container body 1 having a plurality of egg-containing recesses 11 for storing the lower half of the egg and a lid 2 having a substantially flat top plate 21 covering the upper half of the egg. The main body 1 is formed with a partition column 12 at the center surrounded by the four egg-containing recesses 11, and the lid 2 is also recessed in the position of facing the column 12 in the closed position. A strut 22 is formed, and each of the struts 12 and 22 is formed with a fitting concave portion 14 or a fitting convex portion 24 that fits to the opposing surfaces 13 and 23, respectively. Partition struts 12a, 1 located at both ends in the longitudinal direction a is formed such that the position of the facing surface 13a is higher than the other partition struts 12, and the fitting concave portion 14 or the fitting convex portion 24 formed on the facing surface 13a is the center of the container. The recessed struts 22a and 22a, which are formed at locations deviated to the side of the body and located at both ends in the longitudinal direction of the recessed struts 22 in the lid 2, are recessed indentation start end portions 25 facing both ends in the longitudinal direction. , 25 are located at a portion deviated toward the center of the container, and the recess angle α is formed to be steeper than the recess angle β of the other recess support column 22, and the opposing surface 23a serving as the recess bottom , 23a are displaced to a position biased toward the center of the lid body 2, and the area is smaller than the area of the opposing surface 23 of the other recessed support column 22, and the recessed depth is other than In the closed position, both ends of the container body 1 in the longitudinal direction are shallower than the recessed depth of the recessed support post 22. The facing surfaces 13a, 23a of the partition struts 12a, 12a and the recessed struts 22a, 22a at both ends in the longitudinal direction of the lid 2 are opposite to the facing surfaces 13, 23 of the other partition struts 12 and the recessed struts 22, respectively. The structure is configured to contact at a position that is higher by a predetermined height w than the height position.

  Moreover, the structure of Claim 2 has the division support | pillars 12a and 12a of the longitudinal direction both ends in the container main body 1 of Claim 1, and the recessed support | pillars 22a and 22a of the longitudinal direction both ends in the cover body 2. The shape of the fitting concave portion 14 and the fitting convex portion 24 formed on the facing surfaces 13a and 23a is a linear groove-shaped concave portion and a linear rib-shaped convex portion extending in the width direction of the container in plan view. .

  According to a third aspect of the present invention, the container main body 1 and the lid body 2 according to the first or second aspect are formed in series via a bent portion 3 on one side.

  In the present invention, as in the configuration according to claim 1, the bulging height of the partition struts 12a located at both ends in the longitudinal direction of the partition struts in the container body 1 is set to be opposite to that of the other partition struts. The fitting recesses or fitting projections formed on these opposing surfaces are formed at locations that are biased toward the container center side, and the lid 2 is recessed. Of the struts, the recessed depth of the recessed struts 22a located at both ends in the longitudinal direction is located at the portion where the recessed insertion start end facing the both ends in the longitudinal direction is biased toward the container center side, The indentation angle α is shaped so as to be steeper than the indentation angle β of the other indentation struts, and the opposed surface 23a serving as the indentation bottom is displaced to a position biased toward the center side of the lid. The area is small compared to the area of the opposing surface of the other recessed struts, and the recessed depth is shallower than the recessed depth of the other recessed struts. By setting the bottom, in the closed posture, the opposing surfaces of the partition struts 12a at both ends in the longitudinal direction of the container body 1 and the recessed struts 22a at both ends in the longitudinal direction of the lid 2 are recessed with other partition struts. Since it is designed to abut at a position higher by a predetermined height w than the height position of the surface facing the entry strut, all of these for the division struts formed on the container body A large area on the top plate of the lid, while being able to efficiently transmit the external load applied to the lid when the containers are stacked, through the recessed recesses of the lid formed correspondingly In particular, it is possible to ensure that all the recessed struts including the recessed struts at both ends in the longitudinal direction formed on the lid body have excellent compressive strength. The remarkable effect of sufficient protection of the eggs contained inside Which has led to be.

  Further, the container according to claim 2 is a fitting formed on the opposing surfaces of the partition struts 12a formed at both longitudinal ends of the container body 1 and the recessed struts 22a formed at both longitudinal ends of the lid body 2. Since the shape of the concavity and the fitting convexity is a linear groove-shaped concave part and a linear rib-shaped convex part whose plan view shape extends in the width direction of the container, the groove-shaped concave part and the rib-shaped convex part Although the contact area with a small width in the width direction can be a small occupied area, it can be contacted with a long area in the longitudinal direction, and sufficient load transmission can be ensured It came to have.

  In carrying out the present invention, the container body 1 and the lid body 2 are made of a synthetic resin sheet, and are molded into a predetermined shape by a conventionally known bulging molding means. The synthetic resin sheet is not particularly limited as long as it is a resin sheet material conventionally used for such containers, but when PET (polyethylene terephthalate) resin material is used, reuse and waste material recycling are possible. This is advantageous in that it generates a small amount of heat during incineration and does not cause a problem of generation of harmful substances such as dioxins.

  Hereinafter, main embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a state in which the container of the present invention is opened, FIG. 2 is a front view thereof, FIG. 3 is a rear view thereof, FIG. 4 is a right side view thereof, and FIG. 6 is an end view taken along the line AA in FIG. 1, FIG. 7 is an end view taken along the line BB, FIG. 8 is an end view of the closed state of FIGS. 6 and 7, and FIG. CC cut end view, FIG. 10 is an end view of the closed state. Further, FIG. 11 is an enlarged view of the main part on the right side in FIG. 1, and FIG. 12 is a perspective view showing the opened state.

  The egg packaging container shown in this embodiment has 5 rows of egg storage recesses 11 for storing eggs in the container body 1 shown on the lower side of FIG. It is shown as an egg packaging container for containing individual eggs. The number of the egg containing recesses 11 need not be 10, for example, 4 rows in the left-right direction, 2 steps in the front-rear direction, a total of 8 containers, 6 rows in the left-right direction, 2 steps in the front-rear direction, a total of 12 containers, In addition, it can be implemented as a container in which a necessary number is formed.

  Thus, these egg-containing recesses 11 formed in the container body 1 are formed with partition walls 15 for partitioning the recesses, and upward in the center surrounded by the four recesses 11. A standing column 12 is provided. The partition struts 14 are provided at four locations at regular intervals in the left-right direction. Of these partitioning struts 12, a small conical recess 14 is formed on the top surface 13 of the center two partitioning struts 12 to fit with a fitting protrusion 24 in the lid 2 described later. ing. This fitting recessed part 14 can also be implemented as a through-hole into which the fitting convex part 24 in the cover body 2 fits as a modification.

  Further, as shown in the front view of FIG. 2, the rear view of FIG. 3, and the sectional view taken along the line BB of FIG. 12, the partition struts 12 a and 12 a located at both ends in the longitudinal direction of the container body 1 have their bulging heights such that the positions of the facing surfaces 13 a and 13 a are higher than those of the other partition struts 12 and 12 closer to the center. It is formed to be at a high position.

  Further, as shown in FIGS. 1, 2, 3 and 7, the fitting recesses 14a and 14a formed on the facing surfaces 13a and 13a are arranged in the center of the container in the facing surfaces 13a and 13a. Each is formed at a location biased to the part side. Furthermore, as shown in FIGS. 1, 11 and 12, the fitting recess 14a shown in the embodiment is a groove-shaped recess that is narrow in the longitudinal direction of the container body 1 and long in the width direction of the container body 1. It is as.

  The lid body 2 is provided with a rectangular wide top plate 21 covering the upper half of the egg, and is formed in a shallow dish shape by hanging the peripheral wall 26 from the four circumferences thereof. Recessed struts 24 that are recessed from the top plate 21 are provided at four locations facing each partition strut 12 that is formed. Of the four struts 24, the surface corresponding to the concave bottom of the central two concave struts 24, that is, the facing surface 23 facing the container body 1, is fitted to the fitting recess 14 in the container body 1. A conical small fitting convex portion 24 is formed.

  Of the recessed struts 24 in the four lids 2, the two recessed struts 22 a and 22 a located at both ends in the longitudinal direction of the lid 2 are concave facing the both ends in the longitudinal direction of the lid 2. As shown in the AA line cut end view of FIG. 6, the indentation angle α of the indentation start end portions 25, 25 is located at a portion deviated toward the container center portion side. As shown in FIGS. 1, 11, and 12, the opposing surfaces 23 a and 23 a facing the container body 1 serving as the bottom of the recess are seen to be recessed at a steep angle compared to the recess angle β. It is displaced to a position biased toward the center side of the lid, and its area is formed in a small area in the longitudinal direction of the lid as compared with the area of the opposing surface 23 of the other recessed struts 22, The indentation depth ends at a position shallower than the indentation depth of the other indentation struts 22 as seen in the end view taken along line AA in FIG. There is as a shallow bottom.

  Further, the shape of the fitting convex portions 24a, 24a formed on the facing surfaces 23a, 23a of these recessed support columns 22a, 22a is the same as that of the lid 2 as shown in FIGS. The ribs are small in the direction and long in the width direction of the lid 2.

  By forming in this way, as seen in FIGS. 6 and 7, in the closed position, the partition columns 12 a and 12 a at both longitudinal ends of the container body 1 and the concaves at both longitudinal ends of the lid 2 are formed. A position where the height positions of the facing surfaces 13a, 23a facing the entry struts 22a, 22a are higher than the height positions of the facing surfaces 13, 23 facing the other partition struts 12 and the recessed struts 22 by a predetermined height w. It is made to contact with.

  In this way, it is possible to secure a sufficient surface on both end portions of the lid 2 in the longitudinal direction to reliably attach the both end portions of the label that is most easily peeled off, and thereby to bulge out using a large area. Since the recessed struts cannot be bulged by using a large area of the top plate, the recessed struts 22a and 22a at both ends of the bottom end portion near the recessed bottom are the most. As a means for solving this, the depth of recess is made shallow, and the height of the bottom of the recess is made high to avoid local weakening. The bulging height of the partition columns 12a, 12a at both ends on the container body 1 side, which is not particularly limited by the amount of the bulging, is increased by the shallow amount so as to contact the lower surfaces of the recessed columns 22a, 22a. The load is received.

  In the embodiment, the fitting recesses 14 and 14a are formed on the partition column 12 and 12a side of the container body 1, and the fitting projections 24 and 24a are formed on the recessed column 22 and 22a side of the lid 2. Although shown as being, any of these may be a fitting concave portion and any side may be a fitting convex portion.

  As a second best measure in this embodiment, the shape of the fitting concave portion 14a and the fitting convex portion 24a formed in the partition column 12a and the concave column 22a formed on both sides in the longitudinal direction of the container in the above embodiment. As in the above embodiments, one is a groove-shaped concave portion having a small width in the longitudinal direction and a long groove shape in the width direction, and the other is a rib-shaped convex strip having a small width in the longitudinal direction of the container and a long width direction. For example, as shown in FIG. 13 to FIG. 15, the stepped portions 14 b and 24 b that do not fit each other and are brought into contact with each other and are brought into contact with each other and transferred and transmitted / received. It can also be implemented as something that only does.

  As mentioned above, although the Example considered to be typical of this invention was described, this invention is not necessarily limited only to the container shown to the said Example, It has the structural requirements said to this invention, and says to this invention. The present invention can be implemented with appropriate modifications within the scope of achieving the object and having the effect.

  Although the container has a wide labeling surface on the top of the container, it does not have a local fragile part and can reliably protect the whole egg stored inside, and there is little breakage. Since it can be used as a container, it can be expected to be used greatly by producers of eggs.

The top view which shows the cover open state of the container of this invention. The front view of the container. The rear view of the container. The right view of the container. The left view of the container. The AA cut | disconnection end elevation in FIG. The BB line cutting | disconnection end elevation. FIG. 8 is an end view of the closed state in FIGS. 6 and 7. The CC sectional view taken on the line in FIG. FIG. 10 is an end view of the closed state in FIG. 9. The enlarged view of the right side principal part in FIG. FIG. 2 is a perspective view showing a closed posture in FIG. 1. The end view equivalent to FIG. 6 of the load transmission part which shows another Example. The end elevation equivalent to FIG. 7 of the load transmission part which shows the same Example. The end view equivalent to FIG. 8 of the load transmission part which shows the same Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container main body 2 Cover body 3 Bending part 11 Egg egg receiving recessed part 12 Compartment support | pillar 12a Compartment support | pillar 13 of both ends Opposite surface 13a Opposing surface 14 of the partition support | pillar of both ends Fitting recessed part 14a Fitting recessed part 21 of both ends Top plate 22 Concave Recessed struts 22a Recessed struts 23 at both ends Opposite surfaces 23a Opposite surfaces 24 of recessed struts at both ends Fitting convex portions 24a Fitting convex portions 25 at both ends Recessed starting end portions 26 Circumferential walls

Claims (3)

A container formed by swelling a synthetic resin sheet material, and a container body (1) having a plurality of egg-containing recesses (11) for storing the lower half of the egg, and almost covering the upper half of the egg Comprising a lid (2) with a flat top plate (21), the container body (1) has a partition post (12) formed in the center surrounded by four egg-containing recesses (11). The lid (2) is also in a closed posture, and recessed struts (22) lowered from the top plate (21) are formed at positions facing the struts (12), and these struts (12, 22) are formed. Is formed with a fitting recess (14) or a fitting projection (24) that fits each other on the respective facing surfaces (13, 23),
Among the partition struts (12) in the container body (1), the partition struts (12a, 12a) located at both ends in the longitudinal direction are positioned higher on the facing surface (13a) than the other partition struts (12). And the fitting concave portion (14) or the fitting convex portion (24) formed on these facing surfaces (13a) is formed at a location that is biased toward the container center side,
Of the recessed struts (22) in the lid (2), the recessed struts (22a, 22a) located at both ends in the longitudinal direction are recessed start ends (25, 25) facing both ends in the longitudinal direction. Is located in a portion that is biased toward the container center side, the recessed angle α is formed at a steep angle compared to the recessed angle β of the other recessed support column (22), and the opposing surface that becomes the recessed bottom ( 23a, 23a) is displaced to a position biased toward the center of the lid (2), and its area is smaller than the area of the opposing surface (23) of the other recessed strut (22). The recess depth is shallower than the recess depth of the other recess struts (22),
In the closed posture, the partition struts (12a, 12a) at both ends in the longitudinal direction of these container bodies (1) and the opposing surfaces of the recessed struts (22a, 22a) at both ends in the longitudinal direction of the lid (2) ( 13a, 23a) is at a position higher by a predetermined height (w) than the height position of the opposing surface (13, 23) of the other partition strut (12) and the recessed strut (22). Egg-wrapping container that has a structure that touches. Formed on opposing surfaces (13a, 23a) of the partition struts (12a, 12a) at both longitudinal ends of the container body (1) and the recessed struts (22a, 22a) at both longitudinal ends of the lid (2) The shape of the fitting recess (14) and the fitting protrusion (24) is a linear groove-shaped recess and a linear rib-shaped protrusion extending in the width direction of the container. The container for egg egg packaging described in 1. The container for egg wrapping according to claim 1 or 2, wherein the container body (1) and the lid (2) are formed in series via a bent portion (3) on one side.

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