JPH0798551B2 - One-piece molded egg pack - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a snap mechanism for opening and closing an integrally molded egg pack that stores a plurality of eggs, and is particularly easy to operate and easy to remove when opening and closing, and is suitable for repeated use. The present invention relates to an integrally molded egg pack that can withstand.

[Conventional technology]

In the conventional technique, the upper lid is closed on the container of the integrally formed egg pack using a stapler, a rubber ring or a string, which is difficult and inefficient. There is an example in which the container flange portion and the upper lid flange portion have hook-shaped depressions and small protrusions, but it is a disposable type that is easy to open and close and is easily damaged due to its thin thickness. Despite being stored in the refrigerator and unable to withstand repeated use, the structure is complicated and it cannot be processed in one mold step.

[Problems to be solved by the invention]

In the conventional integrally-formed egg pack, the structure of the snap mechanism for opening and closing is a hook shape and it is difficult to open and close and it is easily damaged, so open the top lid at the store to check the items,
Since it is stored in the refrigerator and the remaining eggs are used, it is not a structure that can withstand repeated opening and closing, and processing cannot be performed in one molding step.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an integrally formed egg pack that is easy to operate when the opened and closed egg pack is opened and closed and is hard to be disengaged except by human power, and that has a snap mechanism that withstands repeated use. .

[Means for solving problems]

The present invention provides a plurality of hollow cylindrical recesses provided in the flange portion of the container in which the integrally-molded egg pack faces the rotatable connection portion between the container and the cover, and the flange of the cover lid facing the recesses. It comprises a small protrusion of an elliptical columnar shape provided in the part, the major axis center line of the cross section of each small protrusion forms an angle with each other, and the small protrusion is provided with a snap mechanism that is openably and closably fitted in the recess. Composed.

[Action]

According to the present invention, the snap mechanism for opening and closing the integrally molded egg pack has a hollow cylindrical recess in the container flange portion and an elliptic columnar small protrusion in the flange portion of the upper lid, and these small protrusions have an angle with each other. Since they are not parallel, the deformation direction when fitted in the recess is not uniform with respect to the long side direction of the flange, that is, there are multiple reaction force directions, so this force acts as resistance and can be opened by a person. Difficult to open even when an external force in one direction other than time is applied. On the other hand, the side surfaces of the recesses and the small protrusions that are fitted and contact with each other are smooth and have no hook-shaped catch, and the contact area between the circular cross section and the elliptical cross section is small, so that the resistance is small and it is easy to open and close easily by human power. In addition, since it is reinforced with a reinforcing member that connects the polygonal cross-section recesses for inserting eggs, there is little deformation in the short side direction, and a small protrusion that prevents deformation in the short side direction,
The depression is unnecessary. Since the snap mechanism has a simple structure, the manufacturing process is simplified.

〔Example〕

A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view of the integrally-molded egg pack of the present invention, FIG. 2 is a side view of the integrally-molded egg pack of the present invention, and FIG.

It comprises a container 2 having a plurality of recesses 1 having a polygonal cross section for accommodating a longitudinal half of an egg, and an upper lid 3 having a flat portion 5 on an upper surface thereof rotatably connected to the container 2 for accommodating the remaining longitudinal half of the egg. In the integrally formed egg pack, a plurality of hollow cylindrical recesses 7 provided in the flange portion 6 of the container 2 facing the rotatable connection portion 4 and the hollow lid 7 of the upper lid 3 facing the recesses 7. Oval columnar small protrusions 8 provided on the flange portion 6
Each of the small protrusions 8 has a major axis center line of the cross section forming an angle with each other, and the small protrusions 8 are fitted in the recesses 7 so as to be opened and closed. FIG. 2 shows a side view with the upper lid 3 closed. The internal convex portion 10 of FIG. 3 stands upright inside the upper lid 3 to prevent the vertical half of the egg from falling, and the flat portion 5 has Other integrally-molded egg packs can be placed, and weirs 11 are provided at the four corners of the flat portion 5 to prevent lateral movement of the upper integrally-molded egg pack. In addition, a plurality of streak-like protrusions 12 are provided on the inner surface of the polygonal cross-section concave portion 1 to support chicken eggs and serve as a cushioning material against external force.

A second embodiment of the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 is a view on arrow AA of FIG. 1, and FIG. 4 is a view on arrow BB of FIG. In the snap mechanism of the integrally-molded egg pack, each of the side surfaces which the recess 7 of the container 2 and the small projection 8 of the upper lid 3 come into contact with each other at the time of fitting is a smooth surface and has no hook-like hook. Since the small projection 8 has a curved surface at the base of the upper lid 3 and has a slightly tapered shape toward the tip, it is easy to snap against fitting and detaching, but it is hard to break and easy to process.

A third embodiment of the present invention will be described with reference to FIG. 12
Taking an example of an integrally-molded egg pack containing individual pieces, the small projection 8 provided on the flange portion 6 of the upper lid 3 has its major axis centerline, and the one at the center of the long side is perpendicular to the long side direction, but from the center of the long side. The small protrusions 8, which are divided into two pieces on both sides, face each other in the direction intersecting with each other on the outside of the integrally molded egg pack, for a total of 5 pieces.
Individual small projections 8 are provided. The major diameter of the small projection 8 matches the inner diameter of the recess 7 of the container 2, but both ends are arcuate with a small radius, the base has a curved surface, and the shape is slightly tapered toward the tip. Since the contact area between the circular cross section and the long inner diameter cross section is small when closing, it is easy to fit, but snaps easily, and when opening, at least one small projection 8 has a direction and angle of opening force and is unnecessary and is unnecessary. It is a structure that does not open. On the other hand, when opening from the direction perpendicular to the long side direction of the flange 6, the projection size of the long diameter of the small projection 8 in the opening direction is smaller than the inner diameter of the recess 7, so the small projection 8 can be easily opened without being caught by the edge of the recess 7. It has a cone structure.

A fourth embodiment of the present invention will be described with reference to FIG. Fifth
The figure is a view taken in the direction of arrows C and C in FIG. The recess 7 of the container 2
Has a slack 13 on the bottom surface, and in an integrally molded egg pack containing 12 pieces, 5 pieces are provided in opposition to the small projections 8 of the upper lid 3. When the small projection 8 is fitted, the slack 13 on the bottom surface serves as a buffer so that the bottom surface is not damaged even when the small projection 8 is fitted, and the small projection 8 is wrapped and is difficult to open due to an external force other than human power. Has the effect of helping

A fifth embodiment of the present invention will be described with reference to FIG. Second
FIG. 1 is a side view of an integrally molded chicken egg pack according to the present invention.
In the one-piece molded egg pack containing 12 pieces, the short sides which support the load of another one-piece molded egg pack which is connected on the flat portion 5 by connecting the polygonal cross-section concave portions 1 into which the eggs of the container 2 are placed. In order to prevent the deformation in the direction, the height is increased, the width is also increased, and the reinforcing member 9 in which the thickness of the integrally formed egg pack is increased to 0.8 mm (the thickness is determined by the thermoplastic resin material) is provided, It has a structure in which small protrusions and dents that prevent deformation on the short side are eliminated.

As a sixth embodiment of the present invention, the recess 7 is provided in the upper lid 3 by the snap mechanism of the integrally formed egg pack, and the small projections 8 are provided in the respective flange portions 6 of the container 2, and other configurations are as described above. It is the same as the first to fifth embodiments.

〔The invention's effect〕

According to the present invention, the snap mechanism of the one-piece molded egg pack becomes difficult to open when it is opened except by human power, and when it is closed, the recess and the small projection do not have hook-like hooks, so it is easy to fit and is not easily damaged and can be used repeatedly. Endure. In addition, the structure becomes simple, such as the need for small protrusions in the short side direction, and processing can be performed in the mold 1 step.

[Brief description of drawings]

FIG. 1 is a plan view after the development of the integrally molded egg pack of the present invention, FIG. 2 is a side view after the development of the integrally molded egg pack of the present invention, and FIG. 4, FIG. 4 is a view as seen from arrows B and B in FIG. 1, and FIG. 5 is a view as seen from arrows C and C in FIG. 1 ... Polygonal cross-section concave part, 2 ... Container, 3 ... Top cover, 4 ... Connection part, 5 ... Flat part, 6 ... Flange part, 7 ... Dimple, 8 ... Small projection.

Claims (5)

[Claims] 1. A container having a plurality of recesses each having a polygonal cross section for accommodating a vertical half of an egg, and an upper lid having a flat portion on an upper surface for rotatably connected to the container and accommodating the remaining vertical half of the egg. In the integrally-molded egg pack consisting of a plurality of hollow cylindrical recesses provided in the flange portion of the container facing the rotatable connection portion, and provided in the flange portion of the upper lid facing the recesses. It is composed of small protrusions in the shape of an elliptic cylinder, the major axis center lines of the cross-sections of the respective small protrusions form an angle with each other, and the small protrusions are provided with a snap mechanism that is openably and closably fitted to the depressions. One-piece molded egg pack. 2. A snap mechanism in which a hollow cylindrical recess provided in the container flange portion and an oblong columnar small projection provided in the upper lid flange portion are in contact with each other to form a smooth surface. The integrally-formed egg pack according to claim 1, which is provided. 3. In the integrally molded egg pack having a total of 12 oval columnar small projections provided in the upper lid flange portion, each row having 6 rows and 2 rows, in the integrally formed egg pack, the center of the major axis of the cross section of the small projections. One at the center of the long side where the line is perpendicular to the long side direction,
A snap mechanism comprising a total of 5 snap mechanisms, each of which is arranged such that the long diameter center line faces in a direction intersecting with the outside of the integrally molded egg pack and is distributed from the center of the long side to both sides, respectively. The integrally-molded egg pack according to item 1 or 2. 4. The hollow cylindrical hollow provided in the container flange portion has a slack on the bottom surface in the 12-piece integrally-molded egg pack, and the total is opposite to the small projections of the upper lid. The integrally formed egg pack according to any one of the preceding claims, characterized in that it is provided with five snap mechanisms. 5. In the 12-piece integrally-formed egg pack, the load of another integrally-formed egg pack for connecting and loading the polygonal cross-section recesses for accommodating the eggs in the container is supported. The integrally-molded egg pack according to claim 1, further comprising a reinforcing member having a height, a width and a thickness for preventing deformation in the short side direction.