JPH11255232A - Housing container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide highly effective waterproofness and durability against sticking of moisture caused by dew condensation for a housing container even though the container is made up by using fiber board as its blank and to make the container accommodative for housing goods that are refrigerated or frozen. SOLUTION: A housing container is made up by bending a platelike blank of a fiber board whereon waterproof coating for preventing permeation of water is applied at its both sides, and formed in a structure wherein side panels 3 and end panels 4, 4 for forming side walls and end walls for the box body are provided, extending respectively from four sides of a bottom panel forming a bottom wall for the box body, and a lid panel 6 for closing the upside of the box body is extended either from the side panels 3 or the end panels 4, 4. Furthermore, corner flaps 9, 9... integrally extending over the adjoining side panels 3 and the end panels 4, 4 for being folded down to line the inside of the end panels 4, 4, and end flaps 5 that are provided, respectively extending from the upper edges of the end panels 4, 4 for being folded down at creases at the upper edges of the end panels 4, 4 for fixation at the inside of the end panels 4, 4 to hold the corner flaps 9, 9 between the end panels 4, 4 and the end flaps are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side panel and an end formed by bending a plate-like blank and forming side and end walls of a box from four sides of a bottom panel forming a bottom wall of the box. The present invention relates to a storage container in which a panel is extended and a lid panel for closing an upper surface of a box body is extended from a side panel or an end panel. .

[0002]

2. Description of the Related Art Heretofore, a heat insulating container made of a foaming resin has been used as a cold storage container for transporting a living body at a low temperature in a small amount. However, the foamable resin container cannot be folded and is not only bulky, but also it is difficult to reuse a used one. Also, in the case of disposal, it cannot be incinerated because of the harmfulness of flue gas. Furthermore, since it is hardly decomposed by microorganisms in the soil and the like, it has an adverse effect on the environment when discarded.

[0003] Accordingly, as such a cold storage container, a cold storage container using a blank made of a paperboard or the like such as a corrugated board has attracted attention. Insulated containers made of cardboard or other paperboard can be folded, and used containers can be recycled. In addition, even if it is naturally dumped, it is easily decomposed by microorganisms, and its influence on nature is smaller than that of a foamable resin.

[0004]

Disadvantages of a storage container using a blank made of paperboard such as cardboard are disadvantageous in that it is susceptible to water, easily leaks to the outside such as internal water, and has poor heat retention. For example, when transporting frozen foods, etc.
By cooling the air around the frozen material inside the storage container, water vapor in the air condenses, and water droplets reach the inner surface of the storage container.
Further, the air around the storage container is also cooled and condensed, and water droplets reach the outer surface of the storage container.

[0005] However, in a storage container in which a blank such as a corrugated cardboard is combined, a gap is easily formed in a joint portion between the bottom surface, the side surface, and the end surface. In addition, water generated inside the storage container due to dew condensation inside the storage container easily leaks to the outside through this gap. Further, water adhering to the inner and outer surfaces of the storage container due to the dew condensation penetrates into the inside of the wall of the storage container, causing a reduction in the strength of the storage container.

The present invention solves the problem of such a conventional container using paperboard as a blank. Even if the container uses paperboard as a blank, the container has high waterproofness, dew condensation, etc. Therefore, it is an object of the present invention to provide a storage container suitable for storing refrigerated or frozen storage items, because the durability can be obtained even when water adheres to the storage container.

[0007]

In order to achieve the above object, according to the present invention, a side wall of a box is formed by bending a plate-like blank from four sides of a bottom panel 1 forming a bottom wall of the box. And the side panels 2 and 3 and the end panels 4 and 4 respectively forming the end wall and the end panel, and the lid panel 6 for closing the upper surface of the box body is extended from the side panels 2 and 3 or the end panels 4 and 4. In the container, a corner flap 9, which is integrally connected to the side panels 2, 3 and the end panels 4, 4, which are integrally adjacent to the bottom panel 1, the side panels 2, 3, and the end panels 4, 4,
9 ... provided. Then, the corner flaps 9, 9 are folded and attached to the inside of the end panels 4, 4. Further, the end flaps 5, 5 extending from the upper sides of the end panels 4, 4 are bent at the folding lines of the upper sides of the end panels 4, 4, and are fixed to the inner surfaces of the end panels 4, 4. Thus, the corner flaps 9, 9,... Are sandwiched between the end panels 4, 4, and the end flaps 5, 5.

That is, the storage container according to the present invention is formed by bending a plate-like blank, and side panels respectively forming the side wall and the end wall of the box from four sides of the bottom panel 1 forming the bottom wall of the box. 2, 3 and end panels 4, 4 are extended,
A lid panel 6 for closing the upper surface of the box body is extended from the side panels 2 and 3 or the end panels 4 and 4. Further, corner flaps 9, 9,... Which are integrally connected to the adjacent side panels 2, 3 and the end panels 4, 4, are folded and attached to the inside of the end panels 4, 4, and extend from the upper side of the end panels 4, 4. And are bent at the fold lines on the upper sides of the end panels 4 and 4 to be fixed to the inner surfaces of the end panels 4 and 4.
The corner flaps 9, 9 between the end panels 4, 4;
And an end flap 5 for holding.

Here, the corner flaps 9, 9 are integrated with the bottom panel 1, the side panels 2, 3, and the end panels 4, 4. In such a storage container, adjacent side panels 3 and 4 as well as bent portions between the bottom panel 1 and the side panels 3 and 4 and between the bottom panel 1 and the end panels 4 and 4 are connected. And end panels 4, 4 were connected via corner flaps 9, 9. Therefore, when the storage container is assembled, there is no gap at the joint.
For this reason, high airtightness is obtained, heat retention is improved, and water inside the storage container does not leak outside. Moreover, the storage container can be easily assembled from one blank, and conversely, can be easily developed from the storage container to one blank.

[0010] Furthermore, a waterproof coating is applied to both sides of the blank to prevent water from penetrating into the blank.
Accordingly, when water adheres to the inner surface or the outer surface of the storage container due to dew condensation or the like, the water does not permeate into the blank constituting the storage container. For this reason, even when there is much moisture, the strength of the storage container can be maintained, and the durability against water is improved. The waterproof coating preferably contains a freshness preserving agent that retains the freshness of the organism. This makes it possible to maintain the freshness of the living thing stored inside.

[0011]

Embodiments of the present invention will now be described specifically and in detail with reference to the drawings.
FIG. 1 is a developed view showing an example of a storage container blank according to the present invention. The blank of the storage container is made by punching a paperboard such as a cardboard as shown in FIG. Solid lines indicate cutting lines.

Both surfaces of the sheet material for obtaining the blank are coated with a waterproof coating agent that does not allow water to penetrate into the inside of the blank, and are surface-treated. The waterproof coating agent contains a freshness preserving agent for keeping the organism fresh. Such a surface treatment is applied to a cardboard base paper, particularly to a liner, and such a cardboard base paper is provided, for example, by Hitachi Mori Paper Co., Ltd. under the trade name “Eco Pearl”. Blanks made from liners that have been surface treated in this way have extremely low wettability with water and do not repel water and penetrate into the interior of the blank. In addition, it suppresses the generation of microorganisms that degrade organisms, absorbs aldehydes generated by the decomposition of organisms, and maintains the freshness of organisms.

At the center of the blank, there is a bottom panel 1 forming the bottom wall of the box. Side panels 2 and 3 extend from a pair of vertically opposed sides of the bottom panel 1 in FIG. The boundary between the bottom panel and the side panels 2 and 3 is a linear folding line. In addition, end panels 4 and 4 extend from a pair of left and right opposite sides in FIG. 1 of the bottom panel 1, and a boundary between the bottom panel and the end panels 4 and 4 is a straight line. The heights of the side panels 2 and 3 and the end panels 4 and 4, that is, the upper and lower dimensions of the side panels 2 and 3 in FIG.

Further, a square corner flap 9, 9... Having a chamfered outer corner at an angle of 45 ° extends between the adjacent side panels 2, 3 and the end panels 4, 4. It is integrally connected with the end panels 4 and 4. As a result, the bottom panel 1 and the side panel 2 surrounding it,
3, end panels 4, 4 and corner flaps 9, 9 ...
It has a rectangular shape as if four corners were chamfered at an angle of 45 °. The boundary between the corner flaps 9, 9,... And the side panels 2, 3 and the end panels 4, 4 on both sides is a pair of fold lines perpendicular to each other. Furthermore, a fold line 10 is formed along the intersection of the pair of fold lines, that is, the diagonal line of the corner flaps 9, 9,.

End flaps 5 and 5 extend from the upper sides of the end panels 4 and 4, that is, the right and left sides in FIG. 1 of the end panels 4 and 4. Is a double parallel folding line. One side of the end flaps 5, 5, ie, the lower side in FIG. 1, is formed to be slightly narrower than the width of the end panels 4, 4, and the lower side of the end flaps 5, 5, ie, the end flap 5 5, only the portions close to the left and right sides have the same width as the end panels 4, 4. As a result, the protrusions 15, 1 protruding sideways near the lower sides of the end flaps 5, 5
5 are formed.

Reinforcing flaps 11, 11 connected to the upper sides of the end panels 4, 4 are cut out at the bases of the side sides of the end flaps 5, 5 on which the projections 15, 15 are formed.
The reinforcing flaps 11, 11 have a shape obtained by cutting a circle at an angle of 45 ° with a straight line passing through the center thereof, and the lower end of the upper side of the end panels 4, 4 substantially corresponds to the center of the circle in FIG. The boundary between the reinforcing flaps 11, 11 and the end panels 4, 4 is a fold line, and the fold line is
Of the double fold lines at the boundary between the fold line and the end flap 5, the fold line is on an extension of the fold line on the end panel 4 side. Reinforcement flap 1
Tongue-shaped insertion flaps 12, 12 project from the tips of the projections 1, 11 in the same direction as the projections 15, 15, respectively.
The insertion flaps 12, 12 and the reinforcing flaps 11, 11
Is a broken line between.

From the upper side of one side panel 2, cover panel 6
Is extended, and the boundary between the lid panel 6 and the side panel 2 is a broken line. The width and length of the lid panel 6 are substantially the same as the width and length of the bottom panel 1. An oblong insertion flap 8 extends at the center of the side of the lid panel 6 facing the fold line, and the boundary between the insertion flap 8 and the lid panel 6 is a fold line. In the illustrated example, this fold line corresponds to the lid panel 6.
Is set at a position slightly entering the fold line side forming a boundary with the side panel 2 from the side.

A side flap 7 extends from an upper side of the other side panel 3, that is, a lower side in FIG. 1 of the side panel 3, and a boundary between the side flap 6 and the side panel 3 is double parallel. It is a broken line. The width of the side flap 7 is the same as or slightly smaller than the width of the side panel 3, and the height of the side flap 7 is
It is almost the same as the height of the side panel 3. Notches 16, 16 are formed on both sides on the lower side of the side flap 7. The width of the cutouts 16, 16 is
The projections 15 are substantially the same as the projections 15.

At both ends of the double fold line between the side flap 7 and the side panel 3, the reinforcing flaps 11, 11 correspond to the insertion flaps 12, 12, respectively.
Elongated insertion holes 14, 14 into which 12 is inserted are formed. A long insertion hole 13 corresponding to the insertion flap 8 of the cover panel 6 and into which the insertion flap 8 is inserted is formed in the center of the double folding line.

Next, the procedure for assembling the storage container from the blank will be described in the following order. First,
Along the four folding lines of the bottom panel 1, the side panels 2, 3 and the end panels 4, 4 are bent inwardly by 90 ° from the bottom panel 1 to stand. At this time, the corner flap 9 is formed by a fold line at the boundary between the side panels 2, 3 and the end panels 4, 4, and
Bend inward at 0 °, and make 180
折 り Fold outward and fold. Then, the folded corner flaps 9, 9 are attached to the inside of the end panels 4, 4. This state is shown in FIG. In this case, in FIG. 1 of the blank, the near side of the sheet is the inside, and the far side of the sheet is the outside.

Next, as shown by the arrows in FIG. 3, the side flaps 7 are sequentially bent inward by 90 ° along a double fold line, and the same side flaps 7 are attached to the inside of the side panel 3. This state is shown in FIG. In this state, the portion bent by the double fold line between the side panel 3 and the side flap 7 forms a flat upper side of the side wall of the box, and the insertion holes 13, 1
4 are arranged.

Next, as shown by arrows in FIG. 4, the end flaps 5, 5 are sequentially bent inward by 90 ° along a double fold line, and the end flaps 5, 5 are folded inside the end panels 4, 4. Serve with At this time, the projections 15, 15 of the end flaps 5, 5
(See FIGS. 1 and 3) The notch 1 of the side flap 7
6, 16 are engaged. Also, corner flaps 9, 9 ...
Are sandwiched between the end panels 4, 4 and the end flaps 5, 5. This state is shown in FIG.

Next, as shown in FIG.
The insertion flaps 12, 1, 11 are bent inwardly by 90 ° at the fold lines at their boundaries. Further, the reinforcing flaps 11, 11 are placed inward at the fold lines at the borders with the end panels 4, 4, respectively.
0 ° bend and insert flaps 12 and 12 into insertion hole 1
4 and 14 This state is shown in FIG. In this state, the side wall of the box and the end walls on both sides thereof are connected by the reinforcing flap 11, separated from each other, and reinforced so as not to be inclined.

Next, as shown by an arrow in FIG. 6, the insertion flap 8 is bent 90 ° inward at the fold line at the boundary with the lid panel 6, and then the cover panel 6 is folded at the fold line at the boundary with the side panel 2. Fold the insertion flap 8 inward by 90 ° and insert the insertion flap 8
Insert into 3. Thereby, the opening on the upper surface of the box is closed. Both sides of the front end of the lid panel 5 rest on the reinforcing flap 11 and are supported. Thereby, as shown in FIG. 2, the assembly of the storage container is completed, and the lid panel 6 is closed.

In such a storage container, the joint between the adjacent side panels 3 and 4 and the end panels 4 and 4 is closed by the corner flaps 9 and 9 so that there is no gap. For this reason, high airtightness is obtained, heat retention is improved, and water inside the storage container does not leak out. Furthermore, by applying a waterproof coating on both sides of the blank to prevent water from penetrating into the blank, when water adheres to the inner or outer surface of the storage container due to condensation or the like, this water constitutes the storage container Do not penetrate inside the blank. Therefore, the durability against water is improved as a whole.

In the above description, the side surface and the end surface or the side wall and the end wall of the box are merely relative positional relationships, and are not absolute. When one pair of opposing surfaces is a side surface among the four surfaces excluding the upper surface and the bottom surface, the other pair of opposing surfaces is an end surface.

[0027]

As described above, in the storage container according to the present invention, the joint between the adjacent side panels 3, 4 and the end panels 4, 4 is closed by the corner flaps 9, 9.
Therefore, high airtightness and waterproofness can be obtained. Furthermore, waterproofness is improved by applying a waterproof coating on both sides of the blank to prevent water from penetrating into the blank. Therefore, even if the storage container uses a paperboard as a blank, a storage container having high waterproofness and durability against adhesion of water due to condensation or the like can be obtained.

[Brief description of the drawings]

FIG. 1 is a development view showing a blank of an example of a storage container according to the present invention.

FIG. 2 is a perspective view showing an example of a storage container completed by assembling the blank.

FIG. 3 is a perspective view showing a state where an outer panel and an end panel of the blank are set up from a bottom panel.

FIG. 4 is a perspective view showing a state in which a storage container is being assembled from the blank.

FIG. 5 is a perspective view showing a state in which a storage container is being assembled from the blank.

FIG. 6 is a perspective view showing a state in which the storage container is being assembled from the blank.

[Description of Signs] 1 Bottom panel 2 Side panel 3 Side panel 4 End panel 6 Lid panel 9 Corner flap

Claims (4)

[Claims] 1. A side panel (2) formed by bending a plate-like blank and forming side and end walls of a box body from four sides of a bottom panel (1) forming a bottom wall of the box body.
(3) and the end panels (4) and (4) are extended, and the lid panel (6) for closing the upper surface of the box body from the side panels (2) and (3) or the end panels (4) and (4). In the extended storage container, the adjacent side panels (2) and (3) and the end panels (4) and (4) are integrally connected, and are folded and attached to the inside of the end panels (4) and (4). Corner flaps (9), (9) ..., extending from the upper side of the end panels (4), (4), and bent at the fold lines of the upper sides of the end panels (4), (4) to form end panels (4). ), (4), and an end flap (4) for holding the corner flaps (9), (9)... Between the end panels (4), (4). A storage container, characterized in that: 2. The corner flaps (9), (9) are integral with the bottom panel (1), the side panels (2), (3) and the end panels (4), (4). The storage container according to claim 1. 3. The storage container according to claim 1, wherein a waterproof coating for preventing water from penetrating into the blank is provided on both sides of the blank. 4. The waterproof coating according to claim 1, further comprising a freshness preserving agent for preserving the freshness of living organisms.
Or the storage container according to 2.