JPH11240593A - Egg pack formed of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide na egg pack formed of less forming material, convenient for carrying, and suitable for portable use. SOLUTION: A basic plane shape of a pack comprising a lower lid 4 with a first recessed part 2 suspended therefrom to accommodate a lower half part of an egg, and an upper lid 7 with a plurality of second recessed parts 5 erected therefrom to accommodate an upper half part of the egg, is of approximately regular triangle, (n) rows parallel to the bottom side are assumed from the bottom side of the regular triangle to the apex side, the numbers of the horizontal rows of n1 , n2 , n3 -nn are given from the apex side to the lower bottom side, and egg accommodating part 10 formed of the first recessed part and the second recessed part are arranged in the same number as the number of the horizontal rows, one egg accommodation part located on the upper horizontal row is located above two adjacent egg accommodation parts 10, 10 in the same horizontal row, and the shortest distance between the egg accommodation parts is made almost equal to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an egg pack made of synthetic resin.

[0002]

2. Description of the Related Art In recent years, eggs have been sold in packs made of synthetic resin, and the packs have a plurality of first recesses a for fitting the lower half of the eggs as shown in FIG. Lower lid b
And an upper lid d having a second concave portion c with a lower surface opening, into which the upper half of the egg is fitted, are formed to have substantially the same size and the same shape, and a part of a side edge of the lower lid and the upper lid. To the hinge connection e,
The other side edge is partially closed by heat welding or the like. As shown in the figure, the plan shape of the pack is usually rectangular, and the egg fitting portions f formed by the first concave portion a and the second concave portion c are arranged vertically and horizontally.

[0003]

Since the above-mentioned pack has a simple structure which can be easily formed by a vacuum forming method, material costs occupy much of the cost. Compared with the conventional pack in which the egg fitting portions are arranged vertically and horizontally as a flat rectangular shape, the present invention has a flat equilateral triangular shape, and by changing the arrangement of the egg fitting portions, the material is more than in the past. The present invention proposes a pack which is small, convenient for carrying the pack, and suitable for carrying.

[0004]

As a first means, a lower lid 4 for hanging a lower half of an egg from a first base plate 3 with a plurality of first concave portions 2 having an upper surface opening, and an upper half of an egg. A plurality of second recesses 5 having lower surface openings for fitting parts are formed in substantially the same size and in the same shape with an upper lid 7 standing upright from the second base plate 6. An egg pack made of a synthetic resin in which two boards are superimposed and hinged to each side edge part of the first board and the second board. The basic plane shape is a substantially equilateral triangle, and n rows, parallel to the base, are assumed from the base side to the apex side of the equilateral triangle, and n ₁ , n ₂ , n _{3 to} n
_The egg fitting portions 10 formed by the first concave portion and the second concave portion are arranged in the same number as the row numbers, and the row numbers of n are assigned to the respective rows. One egg fitting part located in the upper row is located above two adjacent egg fitting parts 10 and 10, and the shortest distance between each egg fitting part is provided substantially equal. The shortest distances between the bottom and both hypotenuses and the side edges of each egg fitting portion 10 close to these three sides were substantially equal.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. First, a conventionally known portion will be described. In the egg pack 1, a plurality of first concave portions 2 having an upper surface opening for fitting a lower half portion of an egg are formed by a first method.
The lower lid 4 hanging from the base plate 3 and the upper lid 7 that fits the upper half of the egg and that raises the plurality of second concave portions 5 with the lower surface opening from the second base plate 6 are substantially the same size and the same. Form it into a shape,
The first base plate and the second base plate are overlapped, and a part of each side edge of the first base plate and the second base plate is hinged 8. Flanges 9 and 9 are projected from the other side edges of both base plates, and are welded or the like after the eggs are stored to prevent the storage section from falling off.

In the present invention, the lower lid 4 and the upper lid 7, that is, the basic planar shape of the pack formed by them is substantially a regular triangle. Each corner of the triangle is desirably cut out as a radius as shown. Further to the top angle side from the bottom side of the equilateral triangle, assuming parallel rows and bottom by n columns, with the n _1, n _2, n ₃ ~n _n and row number from the vertical angle side to the lower base side In each of the rows, the same number of the egg fitting portions 10 as the row numbers formed by the first concave portion 2 and the second concave portion 5 are provided. In addition, one egg fitting portion 10 located in the upper row is located above two adjacent egg fitting portions 10 in the same row. Furthermore, each egg fitting part 10
The shortest distance between them is almost equal.

Also, the base 11 and both hypotenuses 12 of the equilateral triangle,
The shortest distances between 13 and the side edges of each egg fitting portion 10 which are close to those three sides are provided substantially equal. It should be noted that the spacing between the egg fitting portions 10 and the spacing between each side of the triangle and the side edge of the egg fitting portion adjacent to these sides are merely examples, and the spacings are further reduced. It goes without saying that you can do this. It is possible to increase the spacing, but this is not preferred from a material saving point of view. Egg fitting portion, that is, first concave portion 2
A known number of vertical ribs 14 also serving as cushions are respectively provided in the second concave portion 5 and the second concave portion 5.

Next, the egg pack according to the present embodiment and a conventional egg pack will be compared for an example in which ten eggs are stored. The pack is the size of the egg fittings, the gap between the egg fittings,
The shortest distances between the egg fitting portion side edge and the pack side edge are all equal, and only the planar shape of the pack is shown by the equilateral triangle of the corner radius shown in FIG. 2, the rectangle shown in FIG. Is a rectangle with a corner radius shown by. In addition, the following numerical values are the actual dimensions of the egg pack, and the egg pack shown in the figure is reduced to half the actual dimension.

(Comparative Example 1) An equilateral triangle with rounded corners shown in FIG. 2 and a rectangle shown in FIG. 3 will be compared. The former area S ₁ is obtained by calculating the area of the entire equilateral triangle, subtracting the total area of the three equilateral triangles indicated by the dotted lines of the three corners, and then calculating the arc connecting the three arcs and the string connecting both ends of the arc. By adding the three total areas enclosed by. That is, S ₁ = (218 × 189 × １ ／) − (41.6 × 36)
× 1/2 × 3) + ｛(π × 24 ² × 120/360) −
(41.6 × 12 × 1/2)｝ 3 = 194414.44
mm ² the latter area S ₂ is determined by the product of the vertical and horizontal lengths. That is, S ₂ = 228 × 93 = 21204 mm ² , and the area of the regular triangular shape of the corner of FIG. 2 is larger than the area of the rectangle in FIG. 3 by (S ₂ −S ₁ ) / S ₂ × 100 = 8.4%. Can be reduced. In the egg pack, since the lower cover and the upper cover are superposed on each other, 8.4 × 2 = 16.8% of molding material can be saved as a whole.

(Comparative Example 2) The regular triangle of the corner radius shown in FIG. 2 is compared with the rectangle of the corner radius shown in FIG. The latter area S ₃ is obtained by calculating the area of the entire rectangle, subtracting the total area of the four squares indicated by the dotted lines of the four corners, and then calculating the arc of the four arcs as a part of the circle. It is determined by adding four total areas of 1/4 of the area. That is, S ₃ = 228 × 93− (24 × 24) 4 + π × 24 ² ×
4 = 20709 mm ² (S ₃ −S ₁ ) / S ₃ × 100 =
6.3% 6.3 × 2 = 12.6% Here, 12.6% of the molding material can be saved.

[0011]

The present invention has a description structure, and can save the material for forming the pack as compared with the rectangular pack shown in FIGS. That is, as described above, a pack having a flat regular triangle shape can save about 15 minutes of material compared to a pack having a flat rectangular shape as an egg pack. In addition, the longest distance from the plane center of the pack to the outer edge of the egg fitting part can be shortened compared to a flat rectangular pack,
Therefore, it is easy to carry the pack, and a display effect at the store can be expected.

[Brief description of the drawings]

FIG. 1 is a side view of a synthetic resin egg pack according to the present invention.

FIG. 2 is a plan view which is also used as an upper cover bottom view and a lower cover top view.

FIG. 3 is a plan view of a conventional egg pack.

FIG. 4 is a plan view of another conventional egg pack.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Egg pack 2 1st recessed part 3 1st base plate 4 Lower cover 5 2nd recessed part 6 2nd base plate 7 Upper lid 8 Hinge connection 10 Egg fitting part 11 Bottom side 12, 13 Oblique side n row

Claims (1)

[Claims] 1. A lower lid 4 for hanging a lower half of an egg from a first base plate 3 with a plurality of first recesses 2 of an upper surface opening, and a plurality of lower openings for fitting an upper half of an egg. Of the second recess 5 to the second base plate 6
The upper lid 7 standing up from is formed in substantially the same size and the same shape, and the first base plate and the second base plate are overlapped,
In a synthetic resin egg pack for connecting a part of each side edge of the first base plate and the second base plate with a hinge, the basic planar shape of the pack formed by the lower lid and the upper lid is substantially an equilateral triangle. From the base side to the apex side of the equilateral triangle, assuming n rows in parallel with the base, from the apex side to the lower base side, n ₁ ,
subjected n _2, n ₃ ~n _n rows numbers, and the like in each row it, each egg fitting portion 10 formed by the and the first recess and the second recess, arranged by the same number as the rows number And two egg fitting portions 10, 1 adjacent in the same row
One egg-fitting part located in the upper row is located above 0, and the shortest distance between each egg-fitting part is set to be approximately equal. Also, the bottom and both hypotenuses of the equilateral triangle and these three sides A synthetic resin egg pack, wherein the shortest distances between the adjacent egg fitting portions 10 and the side edges thereof are substantially equal.