JP2021037979A - container - Google Patents

Abstract

To provide a container capable of preventing damaging or crushing of a side wall and/or a bottom wall made of resin sheet materials even when vertical staking on a pallet is carried out in an overhung state.SOLUTION: A container 1 formed into a box shape by folding a resin sheet material 10 comprises: a bottom wall 70; a long side wall 80 that extends upward from the long side of the four sides of the bottom wall 70; and an opening 99 that is formed at the upper end edge of the long side wall 80, and allows vertical stacking. The container 1 further comprises a first opening reinforcing member 30 that is provided to the upper side of the long side wall 80 to reinforce at least the opening 99, and a side wall reinforcing member 20 that is provided to the lower side of the long side wall 80 within the intermediate region W of the long side wall 80 in a width direction D2 to reinforce at least the long side wall 80.SELECTED DRAWING: Figure 1

Description

The present invention relates to a container made of a resin sheet material and which can be stacked up and down.

Conventionally, various techniques have been proposed for the above containers. For example, the storage box described in Patent Document 1 below has a box body having an upper end wall thickness portion, an inverted U-shaped cross section, a frame having a claw portion and an engaging portion, and an L-shaped plane shape. Has an inverted U shape and consists of a claw portion and a corner having an engaging portion. The claw portion and the claw portion are engaged with the upper end portion, and the engaging portion is engaged with the engaging portion. It is characterized by being made to do. The box body is a corrugated cardboard-shaped plastic plate punched into the shape shown in the figure by pressing.

According to the description of Patent Document 1 below, the storage box is a combination of special parts by improving the method of assembling by conventional machining, so that even a beginner can perform light work by hand regardless of the machine. It can be easily and quickly made into a finished product.

Jitsufuku No. 6-2903

However, when the storage boxes are stacked vertically on the pallet, if one end of the lower storage box is in an overhang state protruding from the pallet, one end of the lower storage box protrudes from the pallet. Near the edge of the pallet, the stress due to the load of the upper storage box increases locally. Therefore, in the lower storage box, the side surface and the bottom surface of the box body were damaged and easily crushed.

Therefore, the present invention has been made in view of the above points, and even if the pallets are stacked up and down in an overhanging state, the side wall portion and / or the bottom wall portion made of the resin sheet material is damaged. An object of the present invention is to provide a container that is prevented from being crushed or crushed.

The invention according to claim 1 made to solve this problem includes a bottom wall portion, a side wall portion extending upward from the periphery of the bottom wall portion, and a side wall portion which is formed in a box shape by bending a resin sheet material. A container having an opening formed at the upper end edge of the side wall, which can be stacked up and down, and an opening reinforcing member provided above the side wall to reinforce at least the opening, and a side wall. It is characterized in that, in the intermediate region in the width direction of the portion, a side wall portion reinforcing member provided on the lower side of the side wall portion and at least reinforcing the side wall portion is provided.

The invention according to claim 2 is the container according to claim 1, wherein the side wall reinforcing member is in a state of being abutted against the bottom wall.

The invention according to claim 3 is the container according to claim 1 or 2, wherein the side wall reinforcing member extends from the lower side of the side wall to the opening reinforcing member along a substantially vertical direction. It is characterized by.

The invention according to claim 4 is the container according to claim 3, which is provided in an intermediate region in the width direction of the side wall portion and includes a first slit portion extending downward from the upper end edge of the side wall portion. The side wall reinforcing members face each other by extending from a pair of opposite edge edges of the substrate portion and a substrate portion inserted into the first slit portion, and from the inside and outside of the container, a pair of facing plate portions covering the side wall portion. , It is characterized in that.

The invention according to claim 5 is the container according to claim 4, which is provided on the upper side of the first slit portion and is received by a gap portion wider than the first slit portion and the gap portion. The side wall portion reinforcing member is provided with a gap portion reinforcing member for reinforcing the gap portion and a second slit portion provided in the gap portion reinforcing member and in which a substrate portion of the side wall portion reinforcing member is inserted by being connected to the first slit portion. The pair of facing plates cover the side wall portion and the gap reinforcing member from the inside and the outside of the container, and the opening reinforcing member covers the side wall portion and the gap reinforcing member from the upper side, the inside, and the outside of the container. It is characterized by.

The invention according to claim 6 is the container according to any one of claims 1 to 5, wherein the opening reinforcing member and the side wall reinforcing member are the same member but have different lengths. It is characterized by being something to do.

In the container of the invention according to claim 1, the bottom wall portion, the side wall portion, and the opening are provided by bending the resin sheet material into a box shape. Further, at least an opening reinforcing member for reinforcing the opening is provided on the upper side of the side wall portion, and at least the side wall portion reinforcing member for reinforcing the side wall portion is provided on the lower side of the side wall portion in the intermediate region in the width direction of the side wall portion. It is provided in. Therefore, when the containers are stacked one above the other, the side wall of the lower container supports the upper container by the opening reinforcing member and the side wall reinforcing member, so that the opening, the side wall, and / or Deformation of the bottom wall is suppressed. As a result, even if the container of the invention according to claim 1 is stacked up and down on the pallet in an overhanging state, the side wall portion and / or the bottom wall portion made of the resin sheet material is damaged or crushed. Is prevented.

In the container of the invention according to claim 2, since the side wall reinforcing member is in a state of being abutted against the bottom wall, it does not come out downward from the bottom wall.

In the container of the invention according to claim 3, the side wall reinforcing member extends from the lower side of the side wall to the opening reinforcing member along a substantially vertical direction. Therefore, the extending direction of the side wall reinforcing member and the load direction of the container on the upper stage side coincide with or approximately coincide with each other. As a result, the strength of the container of the invention according to claim 3 is improved.

In the container of the invention according to claim 4, a first slit portion extending downward from the upper end edge of the side wall portion is provided in the intermediate region in the width direction of the side wall portion. Further, the side wall portion reinforcing member includes a substrate portion and a pair of facing plate portions that face each other by extending from a pair of opposite edge edges of the substrate portion. Therefore, when the substrate portion of the side wall portion reinforcing member is inserted into the first slit portion, a pair of facing plate portions of the side wall portion reinforcing member cover the side wall portion from the inside and the outside of the container. As a result, the strength of the container of the invention according to claim 4 is further improved. Further, the side wall portion reinforcing member can be easily attached to the side wall portion only by inserting the substrate portion into the first slit portion.

In the container of the invention according to claim 5, a gap portion wider than the first slit portion is provided on the upper side of the first slit portion. A gap reinforcing member that reinforces the gap is received in the gap. The gap reinforcing member is provided with a second slit connected to the first slit. Therefore, when the gap reinforcing member is received by the gap, the substrate portion of the side wall reinforcing member is inserted into the second slit portion of the gap reinforcing member. Therefore, when the substrate portion of the side wall portion reinforcing member is inserted into the first slit portion and the second slit portion, the pair of facing plate portions of the side wall portion reinforcing member covers the side wall portion and the gap portion reinforcing member from the inside and outside of the container. At the same time, the opening reinforcing member covers the side wall portion and the gap reinforcing member from the upper side, the inner side, and the outer side of the container. As a result, the strength of the container of the invention according to claim 5 is further improved.

In the container of the invention according to claim 6, the opening reinforcing member and the side wall reinforcing member are the same member but have different lengths. That is, the opening reinforcing member and the side wall reinforcing member have the same shape except for the length. Therefore, after the members having the same shape as the opening reinforcing member and the side wall reinforcing member (hereinafter referred to as "same member") are formed by extrusion molding except for the length, the same members are cut to their respective predetermined lengths. Then, it is possible to manufacture the opening reinforcing member and the side wall reinforcing member. Therefore, the same member that can be manufactured by cutting is standardized between the opening reinforcing member and the side wall reinforcing member. As a result, in the container of the invention according to claim 6, the convenience is improved, the storage efficiency is improved, the manufacturing work is improved, and the cost is eliminated, as compared with the case where the opening reinforcing member and the side wall reinforcing member do not have the same shape. Etc. are possible.

It is a perspective view which represented the container of 1st Embodiment. It is a developed view which showed the resin sheet material of 1st Embodiment. It is a perspective view showing the same resin sheet material formed in a box shape. It is a perspective view which showed the side wall part reinforcing member, the 1st opening part reinforcing member, and the 2nd opening part reinforcing member. It is a perspective view which showed the 1st corner reinforcing member and the 2nd corner reinforcing member. A perspective view showing an example in which a side wall portion reinforcing member, a first opening reinforcing member, a second opening reinforcing member, and a second corner reinforcing member are attached to the same resin sheet material formed in a box shape. Is. It is a figure showing the cross section of the container cut by the line I-I of FIG. The container is shown in a state where the cross section of the container cut along line II-II of FIG. 1 and the cross section of the box-shaped resin sheet material cut along line III-III of FIG. 3 are joined together. It is a figure made. It is a figure showing the cross section of the container cut by the line IV-IV of FIG. It is a perspective view which showed the container in a state where the attachment part of the 1st corner reinforcing member was cut out. It is a perspective view showing the same container in a state of being stacked on a pallet. It is a front view showing the same container in a state of being stacked on a pallet. It is a developed view which showed the resin sheet material of 2nd Embodiment. It is a perspective view showing the same resin sheet material formed in a box shape. It is a perspective view which showed the gap reinforcement member. An example in which a side wall reinforcing member, a first opening reinforcing member, a second opening reinforcing member, a second corner reinforcing member, and a gap reinforcing member are attached to the box-shaped resin sheet material. It is a represented perspective view. An example in which a side wall reinforcing member, a first opening reinforcing member, a second opening reinforcing member, a second corner reinforcing member, and a gap reinforcing member are attached to the box-shaped resin sheet material. It is a represented perspective view. It is a perspective view which represented the container of 2nd Embodiment. The table shows a state in which the cross section of the container cut along the line corresponding to the line II-II of FIG. 1 and the cross section of the resin sheet material formed in a box shape cut along the line VV of FIG. 14 are joined. It is a figure made. It is a figure showing the cross section which cut the container by the line corresponding to line IV-IV of FIG. It is the figure which showed the cross section which cut the container of 1st Embodiment by the line I-I of FIG. 1, and is the figure which showed the 1st modification example of the side wall part reinforcing member. It is the perspective view which showed the container, and is the figure which showed the 2nd modification example of the side wall part reinforcing member. It is the perspective view which showed the container, and is the figure which showed the 3rd modification example of the side wall part reinforcing member.

Hereinafter, the container according to the present invention will be described with reference to the drawings based on the specific embodiment of the present invention.

(1) First Embodiment As shown in FIG. 1, the container 1 of the first embodiment has a box-shaped resin sheet material 10, a side wall reinforcing member 20, a first opening reinforcing member 30, and a second opening. A portion reinforcing member 40, a first corner reinforcing member 50, and a second corner reinforcing member 60 are provided.

In FIG. 1, the direction of the reference numeral D1 indicates a vertical direction (that is, a height direction of the container 1). The direction of reference numeral D2 indicates the width direction on the long side of the container 1. The direction of reference numeral D3 indicates the width direction on the short side of the container 1. The directions D1, D2, and D3 are orthogonal to each other. These points are the same in FIGS. 3, 11, 12, and 14 described later.

The resin sheet material 10 is corrugated cardboard plastic. However, instead of the corrugated cardboard plastic, for example, a resin foam sheet, a resin corrugated cardboard, a resin honeycomb board, a resin hollow structure board, or the like may be used. As shown in FIG. 2 (developed view of the resin sheet material 10), the resin sheet material 10 has a bottom wall portion 70, a long side side wall portion 80, a short side side wall portion 90, and a stacking side side wall portion 92. It has. The bottom wall portion 70, the long side side wall portion 80, the short side side wall portion 90, and the overlapping side side wall portion 92 are rectangular. Of the four sides 72 of the bottom wall portion 70, the long side side wall portions 80 are provided so as to extend from the bottom wall portion 70 on the pair of long sides facing each other, and the short sides on the pair of opposite short sides. The side side wall portion 90 is provided so as to extend from the bottom wall portion 70.

In the long side side wall portion 80, the overlapping side side wall portion 92 is provided so as to extend from the long side side side wall portion 80 at a pair of end sides 82 facing each other in the long side direction. Further, the long side side wall portion 80 is provided with a first slit portion 84 in the intermediate region W included between the pair of end sides 82. The first slit portion 84 is provided along a pair of end sides 82 from the outer edge of the long side side wall portion 80 to the vicinity of the four sides 72 (of which the long side) of the bottom wall portion 70.

As shown in FIG. 3, the resin sheet material 10 is formed in a box shape by being bent at the four sides 72 of the bottom wall portion 70 and the pair of end sides 82 of the long side side wall portions 80. At that time, the overlapping side side wall portion 92 is fixed to the short side side wall portion 90 by stapler or heat welding in a state of being overlapped with the inner surface of the short side side wall portion 90. As a result, the long side side wall portion 80 and the short side side side wall portion 90 are formed so as to extend upward from the four sides 72 of the bottom wall portion 70. Further, the opening 99 is formed by the upper end edge of the long side side wall portion 80 and the upper end edge of the overlapping side side wall portion 92. Further, the first slit portion 84 is arranged in the intermediate region W in the width direction D2 (that is, between the pair of end sides 82) of the long side side wall portion 80, and the upper end edge of the long side side side wall portion 80 (that is, between the pair of end sides 82). That is, it extends downward from the outer edge).

The bottom wall portion 70 may be provided with a drain hole, and the long side side wall portion 80 may be provided with a handle hole.

As shown in FIG. 4, the side wall portion reinforcing member 20, the first opening reinforcing member 30, and the second opening reinforcing member 40 have an elongated shape having a substantially U-shaped cross section. The cross section is processed by, for example, extruding a material such as metal or resin. The side wall portion reinforcing member 20, the first opening reinforcing member 30, and the second opening reinforcing member 40 may be made of corrugated cardboard plastic.

The side wall portion reinforcing member 20 includes a substrate portion 22 and a pair of facing plate portions 26. The pair of facing plate portions 26 extend in the same direction from the pair of opposite edge edges 24 of the substrate portion 22, so that they face each other while maintaining a predetermined interval 27. The predetermined interval 27 is substantially equal to the thickness of the resin sheet material 10 (that is, the long side side wall portion 80). Further, the length 28 of the side wall portion reinforcing member 20 is shorter than the length of the first slit portion 84 provided in the long side side wall portion 80.

The first opening reinforcing member 30 has the same structure as the side wall reinforcing member 20 except that the length 38 is different from the length 28 of the side wall reinforcing member 20. That is, the first opening reinforcing member 30 includes a substrate portion 32 and a pair of facing plate portions 36. The pair of facing plate portions 36 extend in the same direction from the pair of opposite edge edges 34 of the substrate portion 32, so that they face each other while maintaining a predetermined interval 37. The predetermined interval 37 is the same as the predetermined interval 27 of the side wall portion reinforcing member 20, and is substantially equal to the thickness of the resin sheet material 10 (that is, the long side side wall portion 80). Further, the length 38 of the first opening reinforcing member 30 is slightly shorter than the length of the long side side wall portion 80 in the width direction D2.

From the above, the side wall portion reinforcing member 20 and the first opening reinforcing member 30 can be manufactured by cutting the same extruded member into the length 28 and the length 38.

The second opening reinforcing member 40 has the same structure as the side wall reinforcing member 20 except that the predetermined spacing 47 and the length 48 are different from the predetermined spacing 27 and the length 28 of the side wall reinforcing member 20. .. That is, the second opening reinforcing member 40 includes a substrate portion 42 and a pair of facing plate portions 46. The pair of facing plate portions 46 extend in the same direction from the pair of opposite edge edges 44 of the substrate portion 42, so that they face each other while maintaining a predetermined interval 47. The predetermined interval 47 is substantially equal to twice the thickness of the resin sheet material 10 (that is, the value obtained by adding the thickness of the short side side wall portion 90 and the thickness of the overlapping side side wall portion 92). Further, the length 48 of the second opening reinforcing member 40 is slightly shorter than the length of the short side side wall portion 90 in the width direction D3.

When the resin sheet material 10 is formed in a box shape, unlike the case described above, if the overlapping side side wall portion 92 does not overlap the upper side of the short side side wall portion 90, the second opening is reinforced. The predetermined spacing 47 of the members 40 is the same as the predetermined spacing 27 of the side wall reinforcing member 20 and the predetermined spacing 47 of the first opening reinforcing member 30. Therefore, in such a case, the side wall portion reinforcing member 20, the first opening reinforcing member 30, and the second opening reinforcing member 40 are extruded from the same members having the same length 28, 38, and 38. It can be manufactured by cutting to length 48.

As shown in FIG. 5, the first corner reinforcing member 50 and the second corner reinforcing member 60 are mirror image symmetrical members and are made of resin. Each corner reinforcing member 50, 60 includes mounting portions 52, 62, a pair of facing portions 54, 64, and a business trip portion 58, 68, and the cross section when the business trip portions 58, 68 are excluded is substantially C. It has a groove shape. The mounting portions 52 and 62 have a shape bent in a substantially L shape in a plan view. In the mounting portions 52 and 62, the corner portion of the container 1 on the upper stage side is placed in the stacking of the containers 1 in the vertical direction D1 described later.

The pair of facing portions 54, 64 extend in the same direction from the vicinity of the pair of opposite edges of the mounting portions 52, 62. A pair of facing portions 54, 64 face each other while maintaining a predetermined interval 55, 65 from the bent portion of the mounting portions 52, 62 to one end. The predetermined intervals 55 and 65 are substantially equal to the thickness of the first opening reinforcing member 30. On the other hand, from the bent portion of the mounting portions 52 and 62 to the other end, the pair of facing portions 54 and 64 face each other while maintaining a predetermined interval 56 and 66 larger than the predetermined interval 55 and 65. ing. The predetermined intervals 56 and 66 are substantially equal to the thickness of the second opening reinforcing member 40. In this way, in each of the corner reinforcing members 50 and 60, the grooves 59 and 69 are formed by the mounting portions 52 and 62 and the pair of facing portions 54 and 64.

The business trip portions 58 and 68 are provided along the longer edge of the pair of opposite edges of the mounting portions 52 and 62, and the mounting portions 52 are provided in the direction opposite to the pair of facing portions 54 and 64. , 62 protruding from.

The assembly of the container 1 will be described below. As shown in FIG. 6, in the box-shaped resin sheet material 10 (see FIG. 3), the second opening reinforcing member 40 is fitted into the upper end portion of the short side side wall portion 90 or the like. .. As a result, the substrate portion 42 and the pair of facing plate portions 46 of the second opening reinforcing member 40 are provided on the upper side of the short side side wall portion 90 and the like.

Two side wall reinforcing members 20 are inserted into the first slit portion 84 of the long side side wall portion 80 with the respective substrate portions 22 combined. As a result, the pair of facing plate portions 26 of each side wall portion reinforcing member 20 are arranged along the inner and outer surfaces of the long side side wall portion 80 from the first slit portion 84 of the long side side side wall portion 80. In addition, only one side wall portion reinforcing member 20 (the substrate portion 22) may be inserted into the first slit portion 84 of the long side side wall portion 80.

The first opening reinforcing member 30 is fitted into the upper end portion of the long side side wall portion 80. As a result, the substrate portion 32 and the pair of facing plate portions 36 of the first opening reinforcing member 30 are provided on the upper side of the long side side wall portion 80.

At the corners of the box-shaped resin sheet material 10, the second corner reinforcing member 60 (groove 69) is fitted into the first opening reinforcing member 30 and the second opening reinforcing member 40. As a result, the mounting portion 62 of the second corner reinforcing member 60 is arranged above the substrate portion 32 of the first opening reinforcing member 30 and the substrate portion 42 of the second opening reinforcing member 40. Further, the pair of facing portions 64 of the second corner reinforcing member 60 makes the pair of facing plate portions 36 of the first opening reinforcing member 30 and the pair of facing plate portions 46 of the second opening reinforcing member 40 of the container 1. Cover from the top, inside, and outside. Further, the business trip portion 68 of the second corner reinforcing member 60 extends along the outside (edges 34, 44) of the substrate portion 32 of the first opening reinforcing member 30 and the substrate portion 42 of the second opening reinforcing member 40. It is arranged on the outer side of the container 1.

The first corner reinforcing member 50 not shown in FIG. 6 is also attached in the same manner as the second corner reinforcing member 60. The corner reinforcing members 50 and 60 are formed of the first opening reinforcing member 30 (and the long side side wall 80) and the second opening reinforcing member 40 (, the short side side wall 90) by using rivets or bolts. And fixed to the overlapping side side wall portion 92).

With respect to the resin sheet material 10 formed in the box shape in this way, the side wall reinforcing member 20, the first opening reinforcing member 30, the second opening reinforcing member 40, the first corner reinforcing member 50, and the first The two-corner reinforcing member 60 is attached, and the container 1 shown in FIG. 1 is assembled. As a result, in the container 1, the first opening reinforcing member 30 and the second opening reinforcing member 40 reinforce at least the opening 99, and the side wall reinforcing member 20 reinforces at least the long side side wall 80. The opening 99 is also reinforced by the first corner reinforcing member 50 and the second corner reinforcing member 60. Further, the side wall portion reinforcing member 20 is the first opening reinforcing member 30 in the intermediate region W of the width direction D2 of the long side side wall portion 80 from the lower side of the long side side wall portion 80 along the vertical direction D1. Extends to. The extending direction of the side wall reinforcing member 20 may be slightly deviated from the vertical direction D1.

More specifically, as shown in FIG. 7, the two side wall reinforcing members 20 are fitted to the first slit portion 84 of the long side side wall portion 80 with the respective substrate portions 22 combined. When inserted, the long side side wall portion 80 is inserted between the pair of facing plate portions 26. As a result, the pair of facing plate portions 26 of each side wall portion reinforcing member 20 cover the long side side side wall portion 80 from the inside and outside of the container 1.

As shown in FIGS. 8 and 9, the lower end of the side wall reinforcing member 20 is in a state of being abutted against the bottom wall 70. Therefore, in the container 1, the side wall portion reinforcing member 20 is prevented from coming out downward from the first slit portion 84 of the long side side wall portion 80 by the bottom wall portion 70. At the upper end of the side wall portion reinforcing member 20, a pair of facing plate portions 36 of the first opening reinforcing member 30 are in contact with each other.

As shown in FIG. 10, in the first opening reinforcing member 30, the long side side wall portion 80 is sandwiched between the pair of facing plate portions 36 until the upper end of the long side side side wall portion 80 abuts on the substrate portion 32. The upper side is fitted. In the second opening reinforcing member 40, above the short side side wall portion 90 between the pair of facing plate portions 46 until the upper end of the short side side wall portion 90 and the upper end of the overlapping side side wall portion 92 abut against the substrate portion 42. The upper side of the side and overlapping side side wall portions 92 is fitted.

The container 1 can be stacked up and down. For example, in FIGS. 11 and 12, in the pallet P, the containers 1 are stacked in three stages in the vertical direction D1. In the following description, the English letter "A" is attached to the code for the container 1 on the first stage side, and the English letter "B" is attached to the code for the container 1 on the second stage side. The letter "C" is attached to the code for container 1 of.

The container 1A on the first stage side is placed on the loading surface of the pallet P so that each side wall reinforcing member 20A is arranged on the loading surface of the pallet P. In the width direction D2 of the long side side wall portion 80A, the long side side wall portion 80A is arranged so that each side wall portion reinforcing member 20A is arranged on the loading surface of the pallet P even if the position of the container 1A is slightly deviated. The arrangement position of each side wall reinforcing member 20A (that is, each first slit portion 84 of the long side side wall portion 80 into which they are inserted) is determined.

The container 1B on the second stage is stacked upward with respect to the container 1A on the first stage by placing each corner portion on the corner reinforcing members 50A and 60A of the container 1A on the first stage. Will be done. In the container 1A on the first stage side, the position of the container 1B on the second stage side is regulated by the business trip portions 58A and 68A of the corner reinforcing members 50A and 60A. As a result, between the container 1A on the first stage side and the container 1B on the second stage side, each side wall portion reinforcing member 20A and each side wall portion reinforcing member 20B are lined up in the vertical direction D1 via the first opening opening reinforcing member 30A. Placed. Similarly, the container 1C on the third stage side is stacked upward with respect to the container 1B on the second stage side.

In this way, on the loading surface of the pallet P, each side wall reinforcing member 20A of the container 1A on the first stage side, each side wall reinforcing member 20B of the container 1B on the second stage side, and each of the container 1C on the third stage side. The side wall portion reinforcing member 20C is arranged in the vertical direction D1 via the first opening reinforcing member 30A of the container 1A on the first stage side and the first opening reinforcing member 30B of the container 1B on the second stage side.

As described in detail above, in the container 1 of the first embodiment, the resin sheet material 10 is bent into a box shape to provide a bottom wall portion 70, a long side side wall portion 80, an opening 99, and the like. There is. Further, at least the first opening reinforcing member 30 for reinforcing the opening 99 is provided on the upper side of the long side side wall portion 80, and is at least long in the intermediate region W of the long side side wall portion 80 in the width direction D2. A side wall portion reinforcing member 20 for reinforcing the side side wall portion 80 is provided from the lower side to the upper side of the long side side wall portion 80. Therefore, when the containers 1 are stacked one above the other, the long side side wall 80 of the lower container 1 supports the upper container 1 by the first opening reinforcing member 30 and the side wall reinforcing member 20. .. Therefore, in the container 1 on the lower stage side, deformation of the opening 99, the side wall portion 80 on the long side side, and / or the bottom wall portion 70 is suppressed. As a result, even if the container 1 of the first embodiment is stacked up and down on the pallet P in an overhanging state, the long side side wall portion 80 and / or the bottom wall portion 70 made of the resin sheet material 10 is damaged. It is prevented from being crushed or crushed.

Further, in the container 1 of the first embodiment, since the lower end of the side wall portion reinforcing member 20 is in a state of being abutted against the bottom wall portion 70, it does not come out downward from the bottom wall portion 70.

Further, in the container 1 of the first embodiment, the side wall reinforcing member 20 extends from the lower side of the long side side wall 80 to the first opening reinforcing member 30 along the vertical direction D1. Therefore, when the containers 1 are stacked vertically, the extending direction of the side wall reinforcing member 20 and the load direction of the container 1 on the upper side coincide with or substantially coincide with each other. As a result, the strength of the container 1 of the first embodiment is improved.

Further, in the container 1 of the first embodiment, the first slit portion 84 extending downward from the upper end edge of the long side side wall portion 80 is provided in the intermediate region W of the width direction D2 of the long side side wall portion 80. It is provided. Further, the side wall portion reinforcing member 20 includes a substrate portion 22 and a pair of facing plate portions 26 that face each other by extending from a pair of opposite edge edges 24 of the substrate portion 22. Therefore, when the substrate portion 22 of the side wall portion reinforcing member 20 is inserted into the first slit portion 84, the pair of facing plate portions 26 of the side wall portion reinforcing member 20 cover the long side side side wall portion 80 from the inside and outside of the container 1. .. As a result, the strength of the container 1 of the first embodiment is further improved. Further, the side wall portion reinforcing member 20 can be easily attached to the long side side wall portion 80 by simply inserting the substrate portion 22 into the first slit portion 84. That is, the side wall reinforcing member 20 does not have to be fixed to the long side side wall 80 by an adhesive, double-sided tape, rivets, bolts, or the like.

Further, in the container 1 of the first embodiment, the side wall portion reinforcing member 20 and the first opening reinforcing member 30 are the same member and have different lengths 28 and 38, respectively. That is, the side wall portion reinforcing member 20 and the first opening reinforcing member 30 have the same shape except for their respective lengths 28 and 38. Therefore, for example, after the same member having the same shape as the side wall portion reinforcing member 20 and the first opening reinforcing member 30 except for the respective lengths 28 and 38 is formed by extrusion molding, the same member has each length 28. By cutting to, 38, it is possible to manufacture the side wall reinforcing member 20 and the first opening reinforcing member 30. Therefore, the same member that can be manufactured by cutting is standardized between the side wall portion reinforcing member 20 and the first opening reinforcing member 30. As a result, in the container 1 of the first embodiment, the convenience is improved, the storage efficiency is improved, and the manufacturing work is improved, as compared with the case where the side wall portion reinforcing member 20 and the first opening reinforcing member 30 do not have the same shape. And the cost can be deleted.

Incidentally, in the first embodiment, the first opening reinforcing member 30 is an example of the "opening reinforcing member". The length 38 of the first opening reinforcing member 30 is an example of the “length of the opening reinforcing member”. The four sides 72 of the bottom wall portion 70 are an example of “around the bottom wall portion”. The long side side wall portion 80 is an example of a “side wall portion”. The vertical direction D1 is an example of the "substantially vertical direction". The intermediate region W in the width direction D2 of the long side side wall portion 80 is an example of the “intermediate region in the width direction of the side wall portion”.

The first corner reinforcing member 50 and the second corner reinforcing member 60 may be used as the "opening reinforcing member". In such a case, for example, the corner reinforcing members 50 and 60 are used as if (the pair of facing portions 54 and 64 thereof) were extended in the direction D2. At that time, the length 38 of the first opening reinforcing member 30 is shortened. Alternatively, each corner reinforcing member 50, 60 is made continuous in an annular shape by extending (the pair of opposing portions 54, 64) in each direction D2, D3, and the "opening reinforcing member" that reinforces the opening 99 in the annular shape. May be used as.

(2) Second Embodiment Next, the second embodiment will be described with reference to FIGS. 13 to 20. In the following, the parts common to the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 13, each first slit portion 84 of the resin sheet material 10 is coupled with a gap portion 100 on the outer edge side of the long side side wall portion 80. As a result, as shown in FIG. 14, a gap portion 100 is provided on the upper side of each first slit portion 84 of the resin sheet material 10. The gap portion 100 is viewed from the width direction D3 of the short side side wall portion 90 orthogonal to the long side side wall portion 80 by the upper end edge (that is, the outer edge) of the long side side side wall portion 80 being recessed downward. It has a concave shape. The width of the gap portion 100 is wider than the width of the first slit portion 84 in the width direction D2 of the long side side wall portion 80.

The container 1 includes the gap reinforcing member 110 shown in FIG. The gap reinforcing member 110 is made of metal or resin, and includes a main body 112 and a second slit portion 114. The main body 112 is a substantially rectangular plate material that can be fitted into the gap portion 100, and a second slit portion 114 is provided from the outer edge thereof to the inner side.

As shown in FIG. 16, the main body 112 of the gap reinforcing member 110 is fitted to the gap 100 of the long side side wall 80 in a state where the second slit 114 is positioned downward. As a result, when the gap reinforcing member 110 is received, the second slit portion 114 of the gap reinforcing member 110 and the first slit portion 84 of the long side side wall portion 80 are connected in the vertical direction D1. Further, the upper end surface of the long side side wall portion 80 and the upper end surface of the main body 112 of the gap reinforcing member 110 are in a flat state with no step.

In the second embodiment, the two side wall reinforcing members 20 are inserted into the first slit portion 84 of the long side side wall portion 80 with the respective substrate portions 22 combined, and thereafter, as described above. Then, when the gap portion reinforcing member 110 is received with respect to the gap portion 100 of the long side side wall portion 80, as shown in FIGS. 17 and 18, the second slit portion 114 of the gap portion reinforcing member 110 However, the two side wall portion reinforcing members 20 are inserted in a state where the respective substrate portions 22 are combined.

As a result, the pair of facing plate portions 26 of each side wall portion reinforcing member 20 are on the long side side from the second slit portion 114 of the gap portion reinforcing member 110 via the inner and outer surfaces of the main body 112 of the gap portion reinforcing member 110. It is arranged along the inner and outer surfaces of the side wall portion 80. Only one side wall portion reinforcing member 20 (the substrate portion 22) may be inserted into the second slit portion 114 of the gap portion reinforcing member 110 and the first slit portion 84 of the long side side wall portion 80.

When the first opening reinforcing member 30 is fitted into the upper end portion of the long side side wall portion 80, the substrate portion 32 and the pair of facing plate portions 36 of the first opening side side wall portion 30 become the long side side wall portion 80. It is provided on the upper side of the gap above the second slit portion 114 of the gap reinforcing member 110.

In this way, the gap reinforcing member 110 reinforces the gap 100 of the long side side wall 80.

More specifically, as shown in FIGS. 19 and 20, in addition to the long side side wall portion 80, the gap portion reinforcing member is sandwiched between the pair of facing plate portions 26 of the side wall portion reinforcing member 20. The main body 112 of 110 is inserted. As a result, the pair of facing plate portions 26 of the side wall portion reinforcing member 20 cover the long side side side wall portion 80 and the gap portion reinforcing member 110 from the inside and outside of the container 1.

Further, in addition to the long side side wall portion 80, the main body 112 of the gap portion reinforcing member 110 is inserted between the pair of facing plate portions 36 of the first opening reinforcing member 30. As a result, the pair of facing plate portions 26 of the first opening reinforcing member 30 cover the long side side wall portion 80 and the gap portion reinforcing member 110 from the upper side, the inner side, and the outer side of the container 1.

As described in detail above, in the container 1 of the second embodiment, a gap portion 100 wider than the first slit portion 84 is provided on the upper side of the first slit portion 84. The gap portion 100 receives a gap portion reinforcing member 110 that reinforces the gap portion 100. The gap reinforcing member 110 is provided with a second slit portion 114 that is connected to the first slit portion 84. Therefore, when the gap portion reinforcing member 110 is received by the gap portion 100, the substrate portion 22 of the side wall portion reinforcing member 20 is inserted into the second slit portion 114 of the gap portion reinforcing member 110. Therefore, when the substrate portion 22 of the side wall portion reinforcing member 20 is inserted into the first slit portion 84 and the second slit portion 114, the pair of facing plate portions 26 of the side wall portion reinforcing member 20 are elongated from the inside and the outside of the container 1. While covering the side side wall portion 80 and the gap portion reinforcing member 110, the pair of facing plate portions 36 of the first opening reinforcing member 30 form the long side side wall portion 80 and the gap portion reinforcement from the upper side, the inner side, and the outer side of the container 1. Covers member 110. As a result, the strength of the container 1 of the second embodiment is further improved as compared with that of the first embodiment.

Further, in the container 1 of the second embodiment, the main body 112 of the gap reinforcing member 110 is between the pair of facing plate portions 36 of the first opening reinforcing member 30 and the pair of facing plate portions of the side wall portion reinforcing member 20. It is plugged in between 26. Therefore, for example, even if a compressive force acts on the container 1 by stacking the containers 1 vertically, the long side side wall portion 80 is a pair of facing plate portions 36 of the first opening reinforcing member 30. Starting from the lower end of the container 1 (that is, the upper end of the side wall reinforcing member 20), the container 1 is prevented from bending outward or inward. Further, the long side side wall portion 80 is designed so as not to bend outward or inward of the container 1 starting from the first slit portion 84.

(3) Examples of Modifications The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. In the following, the parts common to each of the above embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.

For example, as shown in FIG. 21, the side wall portion reinforcing member 20 may have a cross section substantially H-shaped by the substrate portion 22 and the pair of facing plate portions 26. In such a case, only one side wall portion reinforcing member 20 (the substrate portion 22) is inserted into the first slit portion 84 of the long side side wall portion 80.

Further, as shown in FIG. 22, the side wall portion reinforcing member 20 has an adhesive extending between the bottom wall portion 70 and the first opening reinforcing member 30 with respect to the inner surface of the long side side wall portion 80. , Double-sided tape, rivets, bolts, etc. may be used. In such a case, the first slit portion 84 and the gap portion 100 are unnecessary in the long side side wall portion 80. In FIG. 22, the lower end of the side wall reinforcing member 20 is in contact with the bottom wall 70, but it does not have to be in contact with the bottom wall 70. Further, although the upper end of the side wall portion reinforcing member 20 is in contact with the facing plate portion 36 of the first opening reinforcing member 30, it is not necessary to abut.

Further, as shown in FIG. 23, the side wall portion reinforcing member 20 has the four sides 72 (of which the long side) of the bottom wall portion 70 and the first opening reinforcing member with respect to the outer surface of the long side side wall portion 80. It may be fixed to and from 30 by an adhesive, double-sided tape, rivets, bolts or the like. In such a case, the first slit portion 84 and the gap portion 100 are unnecessary in the long side side wall portion 80. In FIG. 23, the lower end of the side wall portion reinforcing member 20 is located on the four sides 72 (of which the long side) of the bottom wall portion 70, but is located on the four sides 72 (of which the long side) of the bottom wall portion 70. It may be located above. Further, although the upper end of the side wall portion reinforcing member 20 is in contact with the facing plate portion 36 of the first opening reinforcing member 30, it is not necessary to abut.

1 Container 10 Resin sheet material 20 Side wall reinforcing member 22 Board part 24 Edge of board part 26 Opposing plate part 28 Length of side wall part reinforcing member 30 First opening reinforcing member 38 Length of first opening reinforcing member 70 Bottom Wall 72 Bottom wall four sides 80 Long side side wall 84 First slit 99 Opening 100 Gap 110 Gap reinforcement 114 Second slit D1 Vertical direction W Long side side wall width intermediate area

Claims (6)

The resin sheet material is bent to form a box shape, and has a bottom wall portion, a side wall portion extending upward from the periphery of the bottom wall portion, and an opening formed at the upper end edge of the side wall portion. However, it is a container that can be stacked up and down.
An opening reinforcing member provided on the upper side of the side wall and at least reinforcing the opening.
A container including, at least, a side wall portion reinforcing member provided on the lower side of the side wall portion in the intermediate region in the width direction of the side wall portion to reinforce the side wall portion. The container according to claim 1, wherein the side wall portion reinforcing member is in a state of being abutted against the bottom wall portion. The container according to claim 1 or 2, wherein the side wall reinforcing member extends from the lower side of the side wall to the opening reinforcing member in a substantially vertical direction. A first slit portion provided in the middle region in the width direction of the side wall portion and extending downward from the upper end edge of the side wall portion is provided.
The side wall reinforcing member is
The substrate portion to be inserted into the first slit portion and
The third aspect of the present invention, wherein the substrate portion is provided with a pair of facing plate portions that face each other by extending from a pair of opposite edge portions and cover the side wall portion from the inside and the outside of the container. container. A gap portion provided above the first slit portion and wider than the first slit portion,
A gap reinforcing member that is received by the gap and reinforces the gap,
A second slit portion provided in the gap reinforcing member and connected to the first slit portion into which the substrate portion of the side wall portion reinforcing member is inserted is provided.
The pair of facing plate portions of the side wall portion reinforcing member cover the side wall portion and the gap portion reinforcing member from the inside and the outside of the container.
The container according to claim 4, wherein the opening reinforcing member covers the side wall portion and the gap portion reinforcing member from the upper side, the inner side, and the outer side of the container. The container according to any one of claims 1 to 5, wherein the opening reinforcing member and the side wall reinforcing member are the same member but have different lengths.

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