Egg packaging containers

Abstract

To provide an egg packaging container allowed to improve strength.SOLUTION: An egg packaging container 1, formed by bending a blank board 40, comprises a back-face board 13, a top-face board 15 that is bent frontward from an upper end of the back-face board 13, a bottom-face board 16 that is bent frontward from a lower end of the back-face board 13, mount boards 22 that are respectively bent vertically from front ends of the top-face board 15 and the bottom-face board 16, support boards 23 that are bent rearward from the mount boards 22 and have fit holes 25, 26 for an egg E, margin-for-gluing pieces 24 that are bent vertically from rear ends of the support boards 23 and bonded to an inner surface of the back-face board 13, a side-face board 12 that is bent frontward from one side end of the back-face board 13, and a front-face board 11 that is bent from an opposite side end of the side-face board 12 to the back-face board 13 and bonded to the mount board 22. The egg E is supported at both ends by peripheral edges of fit holes 25, 26 on the one pair of support boards 23.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to an egg packaging container for packaging eggs.

Background Art

[0002] A conventional egg packaging container is disclosed in Patent Document 1. This egg packaging container is formed by folding a paper blank board. The blank board has a lid surface plate, a rear surface plate, a bottom surface plate, a front surface plate, an inner front lid plate, a front egg holding plate, an inner bottom plate, a rear egg holding plate, an inner rear lid plate, and an adhesive margin piece that are successively provided in one direction via folding lines. Egg fitting holes are opened in the front egg holding plate and the rear egg holding plate.

[0003] The blank board is folded between the front surface plate and the inner front lid plate, the bottom surface plate and the inner bottom plate are bonded together, and the rear surface plate and the adhesive margin piece are bonded together. Next, the front surface plate is erected from the bottom surface plate together with the front egg holding plate, and the rear surface plate is erected from the bottom surface plate together with the rear egg holding plate. Next, ends of eggs are fitted into the egg fitting holes of the front egg holding plate and the rear egg holding plate. Next, in a state where the eggs are sandwiched by the front egg holding plate and the rear egg holding plate, the lid surface plate is folded relative to the rear surface plate and bonded to the inner front lid plate and the inner rear lid plate. Accordingly, an egg packaging container that supports eggs via the egg fitting holes and surrounds the eggs in the circumferential direction is formed.

Prior Art Literature

Patent Literature

[0004]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0005] However, in the conventional egg packaging container described above, the front and rear egg-holding plates that open the egg-fitting holes have a narrow width around the egg-fitting holes. As a result, the strength of the egg packaging container is weakened, and when a load is applied to the lid, the front and rear egg-holding plates may bend, potentially causing the eggs to fall out of the egg-fitting holes.

[0006] The present invention aims to provide an egg packaging container that can improve strength. [Means for solving the problem]

[0007] To achieve the above objective, the present invention provides an egg packaging container formed by bending a blank plate, comprising: a back plate; a top plate bent forward from the upper end of the back plate; a bottom plate bent forward from the lower end of the back plate; mounting plates bent vertically from the front ends of the top plate and the bottom plate, respectively; support plates bent backward from each of the mounting plates and having egg fitting holes; adhesive pieces bent vertically from the rear end of each of the support plates and adhered to the inner surface of the back plate; a side plate bent forward from one side end of the back plate; and a front plate bent from the side end of the side plate opposite to the back plate and adhered to the mounting plate, wherein both ends of the egg are supported by the periphery of the fitting holes on a pair of support plates.

[0008] Furthermore, the present invention is characterized in that, in an egg packaging container having the above configuration, it comprises a first side flap that is bent forward from the other side edge of the top plate and the bottom plate, and a reinforcing plate that is bent forward from the other side edge of the back plate and adhered to the first side flap.

[0009] Furthermore, the present invention is characterized in that, in an egg packaging container having the above configuration, it is provided with a second side flap that is bent forward from one side end of the top plate and the bottom plate and positioned facing the inner surface of the side plate. [Effects of the Invention]

[0010] According to the present invention, a support plate having fitting holes is erected on the back plate. The side plates are bent from the back plate, and the front plate, which is bent from the side plates, is bonded to a mounting plate connected to the support plate. As a result, the egg packaging container has improved strength against loads in the direction normal to the front plate due to the side plates. Therefore, it is possible to prevent eggs from falling out due to the support plate bending when a load is applied to the front plate. [Brief explanation of the drawing]

[0011] [Figure 1] Perspective view showing an egg packaging container according to the first embodiment of the present invention [Figure 2] Plan view showing a blank plate for an egg packaging container according to the first embodiment of the present invention. [Figure 3] Plan view showing an intermediate egg packaging container according to the first embodiment of the present invention. [Figure 4] Left side view showing an egg packaging container according to the first embodiment of the present invention. [Figure 5] Front view showing the inside of an egg packaging container according to the first embodiment of the present invention [Figure 6] Plan view showing a blank plate for an egg packaging container according to a second embodiment of the present invention. [Modes for carrying out the invention]

[0012] <First Embodiment> Embodiments of the present invention will be described below with reference to the drawings. Figure 1 shows a perspective view of an egg packaging container 1 according to one embodiment. The egg packaging container 1 is formed into a rectangular parallelepiped by bending a blank plate 40 (see Figure 2) and is used to package boiled eggs.

[0013] The egg packaging container 1 has a front panel 11 and a back panel 13 (see Figure 2) that face each other in the front-to-back direction (Y direction), and a top panel 15 and a bottom panel 16 (see Figure 2) that face each other in the up-to-down direction (Z direction). A side panel 12 is provided on the right side of the egg packaging container 1, and a reinforcing panel 14 (see Figure 4) that is narrower in the front-to-back direction than the side panel 12 is provided on the left side.

[0014] A front plate 11 is provided with a band-shaped opening portion 6 in which perforated cuts 4 extending in the left-right direction (X direction) are arranged vertically in parallel. A side plate 12 is provided with a window portion 7 through which the inside can be visually recognized.

[0015] Fig. 2 is a plan view of a blank plate 40 forming an egg packaging container 1 as viewed from the outer surface side. The blank plate 40 is made of paper, and paperboard such as coated cardboard can be used. The basis weight of the blank plate 40 is, for example, 200 to 450 g / m 2 In addition, the blank plate 40 may be formed of a resin sheet.

[0016] The blank plate 40 includes a substantially rectangular front plate 11, a side plate 12, a back plate 13 and an auxiliary plate 14 which are sequentially connected in one direction via folding lines 3. That is, the side plate 12 is connected to one side end of the back plate 13, and the auxiliary plate 14 is connected to the other side end of the back plate 13. A band-shaped opening portion 6 is provided on the front plate 11 by a plurality of cuts 4. A folding line 3 extending in the left-right direction is provided on an upper portion of the front plate 11, and a cut 4 is provided on the folding line 3.

[0017] A window portion 7 having one end disposed on a boundary between the side plate 12 and the front plate 11 is opened in the side plate 12. The folding line 3 on the upper portion of the front plate 11 extends from an upper end of the window portion 7, and a lower end of the opening portion 6 extends from a lower end of the window portion 7.

[0018] Above the back plate 13, a top plate 15, a mounting plate 22, a support plate 23 and a glue margin piece 24 are sequentially connected via folding lines 3. Below the back plate 13, a bottom plate 16, a mounting plate 22, a support plate 23 and a glue margin piece 24 are sequentially connected via folding lines 3. A fitting hole 25 is opened in the upper support plate 23, and a fitting hole 26 having a larger diameter than the fitting hole 25 is opened in the lower support plate. The upper and lower mounting plates 22, support plates 23 and glue margin pieces 24 have the same size, and the peripheral edges of the fitting holes 25 and 26 constitute a support portion that supports an egg E (see Fig. 4).

[0019] A side flap 18 (second side flap) is connected continuously via a fold line 3 to a side end on one side of each of a top panel 15 and a bottom panel 16, respectively. A side flap 17 (first side flap) is connected continuously via a fold line 3 to a side end on the other side of each of the top panel 15 and the bottom panel 16, respectively.

[0020] Figure 3 is a plan view showing the intermediate body 41 of the egg packaging container 1 as viewed from the inner surface side. The blank plate 40 is folded between the top panel 15 and the mounting plate 22, and between the bottom panel 16 and the mounting plate 22, and each adhesive margin piece 24 is adhered to the inner surface of the back panel 13, respectively. Thus, the assemblable intermediate body 41 is formed by raising the support portion for eggs E.

[0021] Figures 4 and 5 show a left side view and an internal front view of the egg packaging container 1, respectively. In the intermediate body 41 (see Figure 3), the top panel 15 and the bottom panel 16 are folded forward from the back panel 13, and the support portion is raised relative to the back panel 13. Accordingly, the mounting plates 22 are respectively folded in the vertical direction from the front ends of the top panel 15 and the bottom panel 16, and the support plates 23 are folded rearward from each of the mounting plates 22. The adhesive margin pieces 24 are folded in the vertical direction from the rear ends of each of the support plates 23. At this time, the egg E is sandwiched between the support plates 23, and both end portions of the egg E are supported by the peripheral edges of the fitting holes 25 and 26. Although the fitting holes 25 and 26 on the support plates 23 are circular, they may also be polygonal.

[0022] Next, with the egg supported by the support portion, the side flap 17 is folded from the side end on the other side of the top panel 15 and the bottom panel 16. The reinforcing plate 14 is folded from the side end on the other side of the back panel 13, and adhered to the outer surface of the side flap 17.

[0023] Next, the side flap 18 is folded from the side end on one side of the top panel 15 and the bottom panel 16. The side panel 12 is folded from the side end on one side of the back panel 13, and overlaps the side flap 18. The front panel 11 is folded from the side end of the side panel 12 opposite to the back panel 13, and adhered to the mounting plate 22. Thus, the egg E is packaged by the egg packaging container 1.

[0024] To remove egg E, the opening 6 is pulled and cut off from one end. Next, the front plate 11 above the opening 6 is grasped and pulled upward, causing the upper part of the front plate 11 to break away from the side plate 12 and be detached from the mounting plate 22. This allows the upper support to be lowered and egg E to be removed.

[0025] In this embodiment, a support plate 23 having fitting holes 25 and 26 is erected on the back plate 13. The side plate 12 is bent from the back plate 13, and the front plate 11, which is bent from the side plate 12, is bonded to a mounting plate 22 connected to the support plate 23. As a result, the egg packaging container 1 has improved strength against loads in the direction normal to the front plate 11 due to the side plate 12. Therefore, it is possible to prevent eggs E from falling out due to the support plate 23 bending when a load is applied to the front plate 11.

[0026] Furthermore, the egg packaging container 1 includes side flaps 17 (first side flaps) that are bent from the top plate 15 and bottom plate 16, and reinforcing plates 14 that are bent from the back plate 13 and adhered to the side flaps 17. This reinforces the egg packaging container 1 and further improves its strength.

[0027] Furthermore, since it is equipped with side flaps 18 (second side flaps) that are bent from the top plate 15 and bottom plate 16 and positioned facing the inner surface of the side plate 12, the egg packaging container 1 can be further reinforced against loads in the direction normal to the front plate 11.

[0028] Furthermore, the side flaps 18 may be omitted. Also, the side plates 12 may or may not be glued to the side flaps 18. Omitting the gluing of the side plates 12 to the side flaps 18 is preferable because it reduces the number of gluing steps required during the formation of the egg packaging container 1, thereby reducing the number of steps involved.

[0029] <Second Embodiment> Next, Figure 6 shows a plan view of the blank plate 40 forming the egg packaging container 1 of the second embodiment. For convenience of explanation, the same reference numerals are used for parts that are the same as those in the first embodiment shown in Figures 1 to 5 above. The egg packaging container 1 of this embodiment has a longer distance in the front-to-back direction (Y direction) than the first embodiment and can store two eggs E. Other parts are the same as in the first embodiment.

[0030] The widths of the opposing front panel 11 and rear panel 13 are formed to be twice that of the first embodiment. Above the rear panel 13, the top panel 15, mounting panel 22, support panel 23, and adhesive tab 24 are sequentially connected via fold lines 3. Below the rear panel 13, the bottom panel 16, mounting panel 22, support panel 23, and adhesive tab 24 are sequentially connected via fold lines 3. The upper support panel 23 has two fitting holes 25 side by side, and the lower support panel has two fitting holes 26 that are larger in diameter than the fitting holes 25.

[0031] As a result, the egg packaging container 1 can package two eggs E (see Figure 3) arranged in the Y direction.

[0032] In this embodiment, as in the first embodiment, the egg packaging container 1 has improved strength against loads in the direction normal to the front plate 11 due to the side plates 12. Therefore, it is possible to prevent eggs E from falling out due to the support plate 23 bending when a load is applied to the front plate 11. [Industrial applicability]

[0033] According to the present invention, it can be used in egg packaging containers for packaging boiled eggs. [Explanation of symbols]

[0034] 1 Egg packaging container 3 Fold lines 4 cuts 6 Opening section 7 Window section 11 Front plate 12 Side plate 13 Back plate 14 Reinforcement plate 15 Top plate 16 Bottom plate 17. Side flaps (first side flap) 18. Side flaps (second side flap) 22 Mounting plate 23 Support plate 24 Glue allowance piece 25, 26 Fitting holes 40 blank plates 41 Intermediate E-egg

Claims

1. An egg packaging container formed by bending a blank sheet, comprising: a back plate; a top plate bent forward from the upper end of the back plate; a bottom plate bent forward from the lower end of the back plate; mounting plates bent vertically from the front ends of the top plate and the bottom plate, respectively; support plates bent backward from each of the mounting plates and having egg fitting holes; adhesive tabs bent vertically from the rear ends of each of the support plates and adhered to the inner surface of the back plate; and from one side end of the back plate, The structure comprises: a side panel that is bent in one direction; a front panel that is bent from the side end of the side panel opposite to the back panel and adhered to both mounting panels; first side flaps that are bent from the other side ends of the top panel and the bottom panel, respectively; second side flaps that are bent from one side end of the top panel and the bottom panel, respectively, and arranged facing the inner surface of the side panel; and a reinforcing plate that is bent forward from the other side end of the back panel and adhered to the first side flap. The length from the front end to the rear end of the reinforcing plate is shorter than the length from the front end to the rear end of the side plate. The bent portion of the top panel is formed only at the boundary between the top panel and the back panel, the boundary between the top panel and the mounting plate, the boundary between the top panel and the first side flap, and the boundary between the top panel and the second side flap. An egg packaging container characterized in that both ends of an egg are supported by the periphery of the fitting holes on a pair of support plates.

2. An egg packaging container formed by bending a blank plate, comprising: a back plate; a top plate bent forward from the upper end of the back plate; a bottom plate bent forward from the lower end of the back plate; mounting plates bent vertically from the front ends of the top plate and the bottom plate, respectively; support plates bent backward from each of the mounting plates and having egg fitting holes; adhesive pieces bent vertically from the rear end of each of the support plates and adhered to the inner surface of the back plate; a side plate bent forward from one side end of the back plate; a front plate bent from the side end of the side plate opposite to the back plate and adhered to both of the mounting plates; and a reinforcing plate bent forward from the other side end of the back plate. A flap is provided that can be folded at one side end of the top plate and the bottom plate, and at the other side end of the top plate and the bottom plate, and the reinforcing plate is bonded to the flap. The bent portion of the top panel is formed only at the boundary between the top panel and the back panel, the boundary between the top panel and the mounting plate, and the boundary between the top panel and the flap. An egg packaging container characterized in that both ends of an egg are supported by the periphery of the fitting holes on a pair of support plates.

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