JP2019089580A - Storage container - Google Patents

Abstract

To provide a storage container which can store a storage object efficiently in a state that strength is maintained.SOLUTION: A storage container includes an outer tray 10 which is formed in a rectangular frame shape by bending a first base board and of which the upper opens, an inner frame 30 which is formed in a rectangular frame shape by bending a second base board and has a pasting face of which the lower side is opened and in which an extension material 50 is pasted to the upper side and is installed in the outer tray. The inner frame has side wall portions 31A, 31B arranged to become a rectangular shape by crossing mutually, and connection walls 32 which are respectively provided to each cross portion of the adjoining side wall portions and locally connect between upper ends of the adjoining side wall portions, and an opening portion 33 which is surrounded by each upper end of side wall portions and the connection walls in a plan view. Each of side wall portions is a composite wall which is superposed by bending one portion of the second base board. A pasting face includes each upper end of the side wall portions and upper faces of the connection walls.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a storage container using a stretch sheet that can be used as a packaging material for fresh food, broken food, and the like.

A storage container having a buffer material is used for packaging perishable foods such as fruits and vegetables, and fragile products such as setters and glasses.
As this type of storage container, there is disclosed a storage container in which a frame body on which a flexible synthetic resin film having an article storage recess formed on one surface is stretched is mounted on an upper surface open bottomed tray (see Patent Document 1) ). Patent Document 2 discloses a storage container having a holding member for holding a stored material with a buffer functional film when a top plate having a buffer functional film is bent, and an outer case in which the holding member is mounted. Is disclosed.

  However, in the storage container described in Patent Document 1, since the product storage concave portion is formed in advance, it is necessary to prepare a frame in which a synthetic resin film is stretched for each product. Moreover, since the storage container described in patent document 2 clamps a storage thing by a buffer functional film, a buffer functional film will be needed for both a top plate and a baseplate.

  Therefore, Patent Document 3 discloses a storage container having a stretch sheet formed by giving a cut to a non-stretchable base material.

JP, 2009-179344, A JP 2004-051163 JP, 2016-155601, A

  However, in the storage container described in Patent Document 3, since the stretch sheet is formed on a part of the substrate, it is difficult in terms of strength to widen the storage area of the object to be packaged. Therefore, the storage container described in Patent Document 3 has a problem that the storage area is smaller than the size of the storage container.

  The present invention has been made in consideration of the above-described points, and an object of the present invention is to provide a storage container capable of storing an object to be stored efficiently while maintaining its strength.

[1] An outer tray which is formed in a rectangular frame shape by bending the first substrate and which opens upward,
The second substrate is formed into a rectangular frame by bending the second substrate, and an inner frame having a sticking surface opened at the lower end and to which the extension material is stuck at the upper end, the inner frame being attached to the inside of the outer tray; The inner frame has a side wall portion intersecting each other and disposed in a rectangular shape, a connecting wall provided at each intersection of the adjacent side wall portions, and locally connecting upper ends of the adjacent side wall portions, and a plan view Wherein each of the side walls is a composite wall formed by bending and overlapping a part of the second substrate, each of the side walls being an opening surrounded by the upper end of the side wall and the connecting wall; A storage container, the surface including each upper end of the side wall portion and an upper surface of the connection wall.
[2] The composite wall forming the long side in the rectangular frame-shaped inner frame is an inner plate portion disposed inside the folding line with the position of the upper end of the second substrate as a folding line, The storage container according to [1], wherein an outer plate portion disposed outside is overlapped.
[3] The storage container according to [2], wherein the second substrate is formed of a corrugated board having a flute, and the flute extends in the direction of the long side.
[4] The outer tray has a bottom wall portion at a rectangular place and second side wall portions extending upward from each end edge of the bottom wall portion, and the second side wall portion is formed by the outer frame The storage container according to any one of [1] to [3], which has a protruding wall that protrudes upward beyond the sticking surface when mounted on a tray.
[5] The storage container according to [4], wherein the projecting wall is provided on a second side wall portion facing in a long side direction of the rectangular frame-shaped outer tray.
[6] Each of the second side wall portions opposed in the long side direction is stretched outward from the first side plate via a bending line and a first side plate projecting outward from the bottom wall portion in the first substrate. The storage container according to [5], further including a second side plate to be taken out, wherein the projecting wall is provided in a region surrounded by a break line formed on the first side plate and the folding line.

  In the present invention, it is possible to efficiently store the packaging target while maintaining the strength.

It is an exploded perspective view about an example of the storage container of the present invention. FIG. 7 is a plan view showing the first substrate 20 before being manufactured as an outer tray 10 when being bent. It is a top view which shows the 2nd board | substrate 40 before producing as an inner frame 30 when it bend | folds. It is a figure which shows the procedure which bend | folds the 1st board | substrate 20 and produces the outer tray 10. FIG. It is a figure which shows the procedure which bend | folds the 1st board | substrate 20 and produces the outer tray 10. FIG. It is a figure which shows the procedure which bend | folds the 2nd board | substrate 40 and produces the inner frame 30. FIG. It is a figure which shows the procedure which bend | folds the 2nd board | substrate 40 and produces the inner frame 30. FIG. It is sectional drawing which cut | disconnected the storage container 1 in the surface containing a long side direction.

Hereinafter, an embodiment of the storage container of the present invention will be described with reference to FIGS. 1 to 8.
FIG. 1 is an exploded perspective view of the storage container 1.
The storage container 1 includes an outer tray 10, an inner frame 30, and a stretchable material 50. The inner frame 30 is attached to the inside of the outer tray 10 from above. The stretchable material 50 is attached to the upper end side of the inner frame 30. The outer tray 10 and the inner frame 30 are produced, for example, by bending a cardboard.

  The outer tray 10 includes a bottom wall 11 having a rectangular shape in a plan view, and side walls (second side walls) 12A and 12B extending upward from respective edges of the bottom wall 11. The side wall portions 12A are opposed in the long side direction (hereinafter, simply referred to as the long side direction) of the bottom wall portion 11. The side wall portion 12B is opposed in the short side direction of the bottom wall portion 11 (hereinafter, referred to simply as the short side direction). The side wall portions 12A each have a projecting wall 13 projecting upward. The projecting wall 13 is locally provided on the central portion side of the side wall portion 12A.

  The inner frame 30 is formed in a square tube shape. The inner frame 30 has side wall portions 31A, 31B and a connecting wall 32. The side wall portions 31A, 31B are arranged in a rectangular shape so as to intersect each other. Side wall portions 31A are opposed in the long side direction. The side wall portion 31A has a holding portion 34 for holding the overlapping of side plates 43 and 44 described later.

  The side wall portions 31B are opposed in the short side direction. The connection wall 32 is disposed at each intersection of the side wall 31A and the side wall 31B adjacent to each other. The connecting wall 32 locally connects the upper ends of the adjacent side wall portions 31A and 31B. The connection wall 32 is formed in a right triangle plate shape in a plan view with a part of each upper end of the side wall portions 31A and 31B as one side and a line segment connecting the side wall portion 31A and the side wall portion 31B as an oblique side.

  The lower end side of the inner frame 30 is opened in a rectangular shape surrounded by the side wall portions 31A and 31B. The inner frame 30 has a substantially octagonal opening 33 surrounded by the upper ends of the side wall portions 31A and 31B and the oblique side of the connection wall 32 on the upper end side.

  When the length of one side of the connection wall 32 formed by a part of the side wall portions 31A and 31B is short, the connection strength between the side wall portion 31A and the side wall portion 31B may be small and the stability may be lost. On the other hand, when the length of one side of the connecting wall 32 formed by a part of the side wall portions 31A and 31B is long, the area of the opening 33 is reduced, and the area capable of storing the storage target described later is reduced. I will. Therefore, it is preferable to set the length of one side of the connection wall 32 in consideration of securing the connection strength between the side wall portion 31A and the side wall portion 31B and a sufficient storage area.

  The maximum width in the long side direction of the inner frame 30 is smaller than the distance between the side wall portions 12A of the outer tray 10 (that is, the distance in the long side direction of the inner space of the outer tray 10). The maximum width in the short side direction of the inner frame 30 is smaller than the distance between the side wall portions 12B of the outer tray 10 (that is, the distance in the short side direction of the inner space of the outer tray 10). Therefore, the inner frame 30 is inserted into and attached to the inner space of the outer tray 10. The heights of the side wall portions 31A, 31B in the inner frame 30 are set equal to or less than the depth of the inner space of the outer tray 10. The position of the upper end of the projecting wall 13 in the outer tray 10 is set above the height of the side wall portions 31A and 31B of the inner frame 30 mounted in the inner space of the outer tray 10.

  The stretchable material 50 is formed to cover the upper end of the side wall portions 31A and 31B of the inner frame 30 and the upper surface of the connecting wall 32, and the outer surface on the upper end side of the side wall portions 31A and 31B (see FIG. 3). Accordingly, the upper ends of the side wall portions 31A, 31B and the upper surface of the connecting wall 32 form a sticking surface on which the stretchable material 50 is stuck. The stretch material 50 is adhesively fixed on the outer surface of each side wall 31A, 31B by hot melt, as one example. As a fixing means of the extension material 50, other means such as double-sided tape may be used.

  The stretchable material 50 is not particularly limited as long as the stretchable material 50 stretches in accordance with the load by the storage object. As the stretch material 50, for example, a plurality of cuts are formed in a non-stretchable flat substrate as disclosed in Japanese Patent Application Laid-Open No. 2016-155601, or a resin net having a resin wire formed in a mesh shape. A formed stretch sheet, a stretchable sheet, or the like can be used.

  FIG. 2 is a plan view showing the first substrate 20 before it is manufactured as the outer tray 10 when it is bent. In other words, FIG. 2 is a developed view of the outer tray 10 formed by bending. In FIG. 2, broken lines are bending lines (ruled lines). Of the solid lines in FIG. 2, solid lines other than the outer contour are broken lines. The first substrate 20 is, for example, one obtained by forming predetermined outer contours, folding lines (ruled lines) and breaking lines on a cardboard. The flute of the cardboard constituting the first substrate 20 is formed extending in the short side direction.

  As shown in FIG. 2, the first substrate 20 has a bottom plate 21 forming the bottom wall 11, side plates 22 and 23 forming the side wall 12A, and side plates 24 and 25 forming the side wall 12B. The side plate (first side plate) 22 protrudes from the bottom plate 21 to the outside in the long side direction via a bending line 61. The side plate (second side plate) 23 protrudes outward from the side plate 22 via a bending line 62. The side plate 22 and the side plate 23 are overlapped when folded at the folding line 62 to form the side wall portion 12A as a composite wall.

  The side plate 22 is formed with broken lines 63 respectively connected to the bending lines 62 at both ends. The bending line 62 is formed between the end in the short side direction and the break line 63. The projecting wall 13 is formed in a region surrounded by the broken line 63 and the folding line 62.

  At the front end in the long side direction of the side plate 23, there are provided extension plates 26 extending outward on the short side direction.

  The side plate 24 protrudes from the bottom plate 21 to the outside in the short side direction via a bending line 64. The side plate 25 protrudes from the side plate 24 to the outside in the short side direction via a bending line 65. The side plate 24 and the side plate 25 are overlapped when folded at the folding line 65 to form the side wall portion 12B as a composite wall. Flap portions 24A and 25A are provided on both sides in the long side direction (length direction) of the side plates 24 and 25, respectively. At the boundary between the side plate 25 and the flap 25A, a notch 27 is provided from the outside in the short side direction. The length in the short side direction of the notch 27 is formed larger than the length in the long side direction of the extension plate 26.

  FIG. 3 is a plan view showing the second substrate 40 before it is manufactured as the inner frame 30 when it is bent. In other words, FIG. 3 is a developed view of the inner frame 30 formed by bending. In FIG. 3, broken lines are bending lines (ruled lines). Of the solid lines in FIG. 3, the solid lines other than the outer contour are broken lines. The second substrate 40 is, for example, one obtained by forming predetermined outer contours, folding lines (ruled lines) and breaking lines on a cardboard. The flute of the cardboard constituting the second substrate 40 is formed extending in the long side direction.

  As shown in FIG. 3, the second substrate 40 includes a top plate 41 on which the connection wall 32 and the side plate 42 are formed, side plates 43 and 44 forming the side wall portion 31A, and a side plate 45 forming the side wall portion 31B. Have. The side plate 43 protrudes from the top plate 41 to the outside in the long side direction via the bending line 71. The side plate 44 protrudes outward from the side plate 43 via a bending line 72. The side plate 43 and the side plate 44 are overlapped when folded at the folding line 72 to form the sidewall 31A as a composite wall.

  The side plate 43 has a holding plate 46 whose width in the short side direction gradually increases as it goes from the bending line 73 extending in the short side direction to the bending line 75. The side plate 44 has a holding plate 47 whose width in the short side direction gradually increases as it goes from the bending line 74 extending in the short side direction to the bending line 75. The bending line 75 is formed at the boundary between the side plate 43 and the side plate 44 with the length of the maximum width of the holding plates 46 and 47. The holding plate 46 and the holding plate 47 are overlapped when folded at the folding line 75 to form the holding portion 34 as a composite wall.

  The side plate 45 protrudes from the top plate 41 to the outside in the short side direction via a bending line 76. The side plate 42 and the side plate 45 are overlapped when folded at the folding line 76 to form the side wall portion 31B as a composite wall. Flap portions 45A are respectively provided on both sides in the long side direction (length direction) of the side plate 45.

  As described above, in the state of the second substrate 40 before being bent, each end of the stretchable material 50 is adhesively fixed to the side plate 43 and the side plate 45 by hot melt or the like, and covers the top plate 41.

Next, a procedure for manufacturing the outer tray 10 and the inner frame 30 by bending the first substrate 20 and the second substrate 40 will be described with reference to FIGS. 4 to 7.
In addition, in the storage container 1, since the structure in the both sides of a long side direction is the same, below, it illustrates and demonstrates only one side of a long side direction.

[Preparation of Outer Tray 10]
When producing the outer tray 10 using the first substrate 20, first, the side plate 25 shown in FIG. 2 is valley-folded along the bending line 65, and the side plate 25 and the side plate 24 as well as the flap portion 25A and the flap portion 24A To form a side wall 12B, and fold the formed side wall 12B at a bending line 64 so that the side wall 12B extends upward from edges on both sides in the short side direction of the bottom wall 11, as shown in FIG. Make it stand out. After side plate 24 is valley folded at bending line 64, side plate 25 is valley folded at bending line 65, side plate 25 and side plate 24, and flap 25A and flap 24A are overlapped to form sidewall 12B. It may be a procedure.

  Next, after the flaps 24A and 25A are bent inward, the side plate 22 is valley-folded and erected at a bending line 61. Next, the side plate 23 is valley-folded at the bending line 62 to overlap the side plate 23 with the flap 25A as shown in FIG. 5, and hold the flaps 24A, 25A between the side plate 22 and the side plate 23. . Thus, the side wall portion 12A in which the side plate 22 and the side plate 23 are overlapped with each other with the flap portions 24A, 25A interposed therebetween is formed. When the side plate 23 is bent, the folded sheet 26 is held by inserting the spread publication 26 into the notch 27.

  Since the bending line 62 is formed on the outer side in the short side direction than the protruding wall 13, the protruding wall 13 extends from the side plate 23 when the side plate 23 is bent and protrudes from the upper end of the side wall portion 12A. Thus, the outer tray 10 is manufactured.

[Preparation of inner frame 30]
About preparation of the inner frame 30, in order to make an understanding easy, the procedure which produces the inner frame 30 which made the upper and lower sides the direction shown in FIG. 1 up and down is demonstrated. In this case, in the second substrate 40 shown in FIG. 3, the stretchable material 50 is attached on the back surface side.

  When producing the inner frame 30 using the second substrate 40, first, the side plate 42 and the side plate 45 shown in FIG. 3 are valley-folded at the bending line 76 and erected, as shown in FIG. 42 and the side plate 45 are overlapped to form a side wall 31B, and the flap 45A is bent inward.

  Next, the side plate 43 is valley-folded along the folding line 71 and erected. Next, the side plate 44 is valley-folded at the bending line 72, thereby overlapping the side plate 44 with the flap 45A as shown in FIG. 7 and holding the flap 45A between the side plate 43 and the side plate 44. Thus, the side wall portion 31A in which the side plate 43 and the side plate 44 are overlapped with each other with the flap portion 45A interposed therebetween is formed.

  The bent side plate 44 engages with the side plate 42 of the side wall portion 31B from the inside in the short side direction. As a result, the side plate 42 that is erected is prevented from laying down, and the overlapping of the side plate 42 and the side plate 45 in the side wall portion 31B is maintained.

When the side plate 44 is bent, the holding plate 46 and the holding plate 47 are bent along the bending line 75 and overlapped to form the holding portion 34. Next, the formed holding portion 34 is bent at bending lines 73 and 74 (in FIG. 7, the bending line 73 is not shown) and is inclined inward in the long side direction. Since the holding plate 46 is inclined with the bending line 73 as a fulcrum, a V-shaped groove formed in the side plate 44 by the movement of the holding plate 47 is fitted with a portion having a larger width than the groove in the holding plate 46 Do. As a result, the bent side plate 44 is prevented from opening, and the overlapping of the side plate 43 and the side plate 44 in the side wall portion 31A is maintained.
Thus, the inner frame 30 is produced.

  The produced inner frame 30 is mounted from the upper side to the inside of the outer tray 10 in a state where the side on which the stretchable material 50 is attached is directed upward, and the storage container 1 is formed.

FIG. 8 is a cross-sectional view of the storage container 1 cut along a plane including the long side direction.
As shown in FIG. 8, in the storage container 1, the storage target object F is stored in a suspended state in the extension material 50. The stretchable material 50 is attached so as to cover the top plate 41, but in the top plate 41, the connecting wall 32 is excluded and the opening portion 33 is formed. Since the connecting wall 32 is disposed only at the corner where the side walls 31A and 31B arranged in a rectangle intersect, almost all of the rectangular area surrounded by the side walls 31A and 31B can be used as a storage area. .

  Further, in the storage container 1 of the present embodiment, since the side wall portion 31B of the frame 30 is formed of a composite wall in which the side plate 42 and the side plate 45 are superimposed, the frame 30 has a large opening 33. Even in the case of the above, sufficient strength can be expressed. Therefore, among the side wall portions 31A and 31B, the side wall portion 31B disposed along the long side direction is often set to have a flute extending in the short side direction in consideration of strength, but the side wall portion 31B is The flutes can be set to extend in the direction of the long side because they are formed of composite walls and have strength.

  Furthermore, in the storage container 1 of the present embodiment, the side plate 42 to be the composite wall is disposed at a position to be the opening 33 after being bent inside the bending line 76 in the second substrate 40. As in the case where the second board 40 is disposed outside the side plate 45, it is possible to prevent the second substrate 40 from becoming large and the use amount of the cardboard from increasing.

  In addition, in the storage container 1 of the present embodiment, since the projecting walls 13 projecting upward beyond the sticking surface of the stretchable material 50 are disposed on both sides in the long side direction, the projecting walls 13 form a screen and are stored. The movement (slip) of the object F can be prevented. Moreover, in the storage container 1 of this embodiment, since the protrusion wall 13 is formed using a part of side plate 22, it can avoid that the usage-amount of a corrugated-cardboard increases with provision of the protrusion wall 13. .

  Although the preferred embodiments according to the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. The shapes, combinations, and the like of the constituent members shown in the above-described example are merely examples, and various changes can be made based on design requirements and the like without departing from the spirit of the present invention.

  For example, although the configuration in which the protruding wall 13 is provided on the side wall portion 12A is exemplified in the above embodiment, the configuration is not limited to this structure, and the configuration is provided on the side wall portion 12B or provided on both the side wall portions 12A and 12B It is also good. Further, the configuration is not limited to the configuration in which the protruding wall 13 is locally disposed, and the configuration may be provided on the outer tray 10 over the entire circumference. In the case where the projecting wall 13 is provided over the entire circumference, for example, it is possible to make the depth of the inner space of the outer tray 10 higher than the height of the inner frame. Preferably, as described above, they are provided locally.

  Moreover, in the storage container 1 of the said embodiment, although the outer tray 10 and the inner frame 30 illustrated the structure which is a rectangle (rectangle), it is not limited to this structure and planar view square may be sufficient. When the outer tray 10 and the inner frame 30 are square in a plan view, one of the two opposing sides is the short side described in the above embodiment as the side walls 12A and 31A, and the other is the long side. 12B and 31B may be arranged.

  DESCRIPTION OF SYMBOLS 10 ... Outer tray, 11 ... Bottom wall part, 12A, 12B ... Side wall part (2nd side wall part) 13, ... Protrusion wall, 20 ... 1st board | substrate, 22 ... Side plate (1st side plate) 30, 30 ... Inner frame, 31A , 31B: side wall portion, 32: connection wall, 33: opening, 40: second substrate, 50: stretch material, 62: bending line, 63: breaking line

Claims (6)

An outer tray which is formed in a rectangular frame shape by bending the first substrate and which opens upward;
An inner frame having a sticking surface which is formed in a rectangular frame shape by bending the second substrate and which is open at the lower end side and to which the extension material is attached at the upper end side;
Equipped with
The inner frame is provided with a side wall portion which is disposed in a rectangular shape so as to cross each other, and a connecting wall which is provided at each intersection of adjacent side wall portions and which locally connects upper ends of the adjacent side wall portions. And an opening surrounded by each upper end of the side wall and the connection wall in a visual manner,
Each of the side wall portions is a composite wall obtained by bending and overlapping a part of the second substrate,
The storage container, wherein the sticking surface includes each upper end of the side wall portion and an upper surface of the connection wall.   The composite wall forming the long side of the rectangular frame-shaped inner frame is disposed outside the inner plate portion disposed inside the folding line with the position of the upper end of the second substrate as the folding line. The storage container according to claim 1, wherein the outer plate portion is overlapped. The second substrate is formed of a corrugated board having a flute,
The storage container according to claim 2, wherein the flute extends in the direction of the long side. The outer tray has a bottom wall portion at a rectangular place and second side wall portions extending upward from respective edges of the bottom wall portion,
The storage container according to any one of claims 1 to 3, wherein the second side wall portion has a projecting wall which protrudes upward relative to the pasting surface when the inner frame is attached to the outer tray. .   The storage container according to claim 4, wherein the protruding wall is provided on a second side wall portion facing in a long side direction of the rectangular frame-shaped outer tray. Each of the second side wall portions opposed in the long side direction is a first side plate projecting outward from the bottom wall portion in the first substrate, and a second side plate projecting outward from the first side plate via a bending line. With a side plate,
The storage container according to claim 5, wherein the projecting wall is provided in a region surrounded by a break line formed in the first side plate and the folding line.

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