JP2006341853A - Article preservation box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an article preservation box which facilitates stacking work, and surely prevents a lateral shift in stacked boxes. <P>SOLUTION: The article preservation box includes a lidless corrugated cardboard box body 10 having an open top, and a cylindrical corrugated cardboard outer frame 20 which is so fitted on the outer side face of the box body 10 as to be put on and pulled out vertically freely. The box body 10 and the outer frame 20 are so fixed together as to be immovable vertically relative to each other. The upper and lower end faces 20A, 20B of the outer frame 20 are formed of cut faces of the corrugated cardboard, and the upper and lower end faces 20A, 20B come in contact with the lower end face 20B at an upper tier and the upper end face 20A at a lower tire, respectively, when the article preservation boxes are stacked. The outer frame 20 is provided with lateral shift regulating parts 70 that regulate a lateral shift in the article preservation boxes stacked vertically along the outer frames 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an article storage box used for storing documents, for example, and more particularly to an article storage box made of cardboard.

Documents that are no longer necessary are generally packed in cardboard boxes and stacked in a warehouse for storage. However, since the existing cardboard boxes do not consider the stacking property, the lateral displacement occurs when stacking, and as the number of stacked stages increases, the shift amount is superimposed and becomes unstable.
As a box in consideration of stacking properties, for example, corrugated cardboard trays as shown in Patent Document 1 and Patent Document 2 have been proposed. This corrugated tray is configured such that the bottom wall side edge of the upper tray is placed on the upper end surface of the side wall of the lower tray, and the engaging protrusion provided on the upper end surface of the lower tray is placed on the bottom wall side edge of the upper tray. It is comprised so that it may engage with the engagement hole provided in.

However, in this corrugated cardboard tray, the lateral displacement can be restricted, but the upper end surface of the side wall of the tray serving as a stacking surface is formed by a folded surface formed by folding corrugated cardboard, so that it is not a perfect plane. In particular, since the width of the upper end surface of the side wall is narrow, the central portion has a high curved surface due to the influence of the folding lines on both sides, and when stacked, there is a gap between the contact surfaces of the upper end surface of the side wall of the lower tray and the bottom wall. Yes, it is not stable and looks bad.
Further, in the conventional corrugated cardboard tray, the load is added to the lower tray by the number of trays stacked in the upper stage. Therefore, when a heavy article such as a document is stored, the load applied is excessive. As a result, the lower tray may be deformed and the stability may be further deteriorated. In order to prevent the tray from being deformed, for example, the thickness of the cardboard may be increased. However, since the curvature of the upper end surface of the side wall is increased, the stability is worsened. Molding is also difficult.
In addition, when stacking, it is necessary to align and insert the engaging projection of the lower tray into the engaging hole of the upper tray bottom wall, but the engaging hole of the upper tray is located on the tray bottom wall. The alignment with the protrusion is an operation that relies on intuition, and the workability is poor. In particular, when used in a storage box for storing documents, etc., the box itself is relatively deep and large, so the engaging protrusion must be inserted into the engaging hole with the heavy box containing the documents lifted with both hands. In other words, workability is significantly deteriorated.
JP-A-11-278462 JP-A-11-255238

  The present invention has been made to solve the above-described problems of the prior art, and the object of the present invention is to simplify the stacking operation and to reliably prevent lateral displacement and to have high stability during stacking. The object is to provide an article storage box.

In order to achieve the above object, the invention according to claim 1 comprises: a corrugated cardboard box body having no lid that is open at the top; and a cylindrical corrugated cardboard outer frame fitted to the outer surface of the box body. An article storage box configured by combining the box body and an outer frame, wherein the upper and lower end surfaces of the outer frame are formed by cardboard cutting surfaces, and the lower article is stacked when stacking the article storage boxes The lower end surface of the outer frame of the upper article storage box is placed on the upper end surface of the outer frame of the storage box, and a lateral deviation regulating portion is provided in the outer frame to regulate lateral deviation of the stacked upper and lower article storage boxes. It is characterized by that.
The invention according to claim 2 is characterized in that the corrugated cardboard constituting the outer frame has a structure in which the ridge line direction of the corrugation of the core extends in the vertical direction, and the corrugated cross section of the core is exposed on the upper and lower end surfaces. To do.
The invention according to claim 3 is characterized in that the outer frame has a multiple structure in which a plurality of cardboards are overlapped.
The invention according to claim 4 is characterized in that the lateral displacement regulating portion is provided between the contact surfaces of the upper end surface of the outer frame of the lower article storage box and the lower end surface of the outer frame of the upper article storage box. It is comprised by the recessed part and convex part which engage.
The invention according to claim 5 is provided with a handle hole penetrating from the outer surface of the outer frame to the inner surface of the box body, and further comprising a coupler for connecting the outer frame and the box body using the handle hole. .

The invention according to claim 6 is characterized in that the coupler is a corrugated sheet that is wound around and fixed to a portion between the upper edge of the handle hole and the outer frame and the upper end surface of the box body.
According to the seventh aspect of the present invention, a corrugated cardboard reinforcing frame is attached to the outer surface of the outer frame.
In the invention according to claim 8, a lid separate from the box body is provided as an accessory, and the upper opening of the stacked uppermost article storage box is closed.

According to the first aspect of the present invention, the loading surface is not the upper end surface of the box body but the upper and lower end surfaces of the outer frame that are fitted to the outer surface of the box body, and the upper and lower end surfaces of the outer frame are cut surfaces having high flatness. Therefore, the upper and lower end surfaces of the outer frames of the upper and lower article storage boxes are in close contact with each other at the time of stacking and can be stably loaded. In addition, since the lateral displacement restricting portion is provided on the outer frame, the outer frames can be stacked straight without being displaced from each other, and can be stacked in an orderly and stable manner.
As a result, the atmosphere of the document warehouse in which the cardboard boxes have been stacked up in a conventional manner becomes an orderly and comfortable space, and the work environment can be improved.
In addition, since the load from the upper stage is supported by the outer frame, no load is applied to the lower box body even when stacked in multiple stages. Therefore, the box main body itself is not affected by the load from the upper side only by the load of the article to be stored, and there is no risk of being crushed or deformed. In addition, even if the thickness of the outer frame is increased in order to load a stacking load, the upper and lower end surfaces of the outer frame are constituted by the cut surfaces of the cardboard, so that high flatness is maintained and strong against heavy loads, In addition, an article storage box with high stacking stability can be realized.
In addition, since the lateral displacement restricting part is provided on the outer frame, there is no need for the troublesome work of inserting the engaging protrusion and the engaging hole as in the conventional cardboard tray, and it can be easily confirmed visually from the side. Easy stacking work.
Furthermore, when stacking, the outer frames of the upper and lower storage boxes are in close contact with each other, and the box body of the lower storage box is cut off from the external space by the outer frame and the bottom surface of the upper box body, so packing is performed. It is not necessary to open the lid at the time, and it is not necessary to open the lid when taking it out, so that the labor required for putting in and out the document is greatly reduced.

According to the invention of claim 2, since the corrugated cardboard constituting the outer frame is a cutting surface in which the corrugated ridge line direction of the core is the vertical direction and the corrugated cross section of the core is exposed on the upper and lower end surfaces. The rigidity can be increased, and stability can be improved.
According to the invention of claim 3, since the outer frame has a multiple structure in which a plurality of cardboards are superposed, the stability is further improved. In addition, the cost can be reduced by stacking inexpensive cardboards having a general thickness.

According to the invention which concerns on Claim 4, since the lateral deviation control part was set as the structure which a convex part and a recessed part fit, it can regulate the lateral deviation of the both directions along the side edge of an outer frame.
According to the fifth aspect of the present invention, since the coupler is structured to be coupled through a handle hole penetrating the outer frame and the box body, not only the outer frame and the box body are coupled, but also the handle portion is reinforced. be able to.

If the coupler is made of corrugated cardboard as in the invention according to claim 6, it is convenient that there is no need to separate even when recycling. Moreover, since it can be composed of paper that returns to nature, the burden on the environment is small even when discarded.
According to the invention which concerns on Claim 7, since the reinforcement frame was mounted | worn to the outer surface of the outer frame, while being able to aim at reinforcement of an outer frame, design property can be improved.
According to the invention according to claim 8, since the lid separate from the box body is provided and the upper opening of the uppermost stacked article storage box is closed, there is only one lid. That's it.

The present invention will be described below based on the illustrated embodiments.
1 and 2 show an example of an article storage box made of cardboard according to the embodiment of the present invention.
The article storage box 1 stores documents and the like, and as shown in FIG. 1, a cardboard box body 10 and a cardboard outer frame that is detachably attached to the outer surface of the box body 10 in the vertical direction. 20, a reinforcing frame 30 that is detachably mounted on the outer surface of the outer frame 20, and a box main body 10, a coupling tool 50 that couples the outer frame 20 and the reinforcing frame 30, and a box main body as an accessory A lid 60 that closes the 10 openings is provided. The lid 60 closes the opening of the box body 10 of the uppermost article storage box 1.
The upper end surface 20A and the lower end surface 20B of the outer frame 20 are constituted by cardboard cutting surfaces, and when stacking the article storage boxes, as shown in FIG. The lower frame 20B of the outer frame 20 of the upper article storage box 1 is placed, and the load of the upper article storage box 1 is supported by the outer frame 20.
In this embodiment, as shown in FIGS. 2B and 2C, the heights of the box body 10, the outer frame 20, and the reinforcing frame 30 are all set to the same height, and FIG. 2, the upper end surfaces of the box body 10 and the reinforcing frame 30 are also flush with the upper end surface 20 </ b> A of the outer frame 20, and the bottom surface of the box body 10 and the lower end surface of the reinforcing frame 30 are also the lower end surfaces of the outer frame 20. It is located on the same plane as 20B. Accordingly, in this embodiment, the bottom side edge of the upper box body 10 is in contact with the upper end surface of the lower box body 10, but basically the upper load is a highly rigid outer frame 20. Supported by The bottom surface of the box body 10 may be positioned higher than the lower end surface 20B of the outer frame 20, and the box bodies 10 may be non-contact with each other.

Further, the outer frame 20 is provided with a lateral displacement regulating unit 70 that regulates lateral displacement of the stacked upper and lower article storage boxes. In this embodiment, the lateral displacement restricting portion 70 includes a pair of convex portions 71, 71 provided on the outer frame upper end surface 20A and a pair of concave portions provided on the outer frame lower end surface 20B corresponding to the convex portion 71. 72, 72, and when stacked, the protrusions 71, 71 provided on the upper end surface 20A of the lower article storage box 1 are the recesses 72 provided on the lower end face 20B of the upper article storage box 1, 72 is engaged.
As shown in FIG. 3 (A), the box body 10 has a rectangular parallelepiped shape with an open top, and includes a barrel portion 10A having a rectangular tube shape and a bottom wall 15 that closes the lower end of the barrel portion 10A. The trunk portion 10A includes a pair of front and rear side walls 11 and 12 and a pair of left and right end walls 13 and 14. The left and right end walls 13 and 14 are provided with rectangular handle holes 17 and 17 near the upper ends thereof. ing.
Here, front, rear, left and right are described with the side facing the operator as the front, the opposite side as the rear, the left side toward the left and the right side as the right. Hereinafter, the same applies to the outer frame 20 and the reinforcing frame 30.
As shown in FIGS. 3B and 3C, the box body 10 is configured such that the body portion 10A can be folded into a parallelogram shape, and the bottom wall 15 is folded inside. In the illustrated example, the angle C12 between the front side wall 11 and the right end wall 14 and the angle C14 between the rear side wall 12 and the left end wall 13 are bent in a direction that decreases from a right angle. When the angle C14 of the part C11 and the rear side wall 12 and the right end wall 14 increases in a direction from a right angle and is fully folded, as shown in FIG. 3D, the left end wall 13 and the front side wall 11 are The continuous rectangular folding surface 10B and the rectangular folding surface 10C in which the rear side wall 12 and the right end wall 14 are continuous have a size that overlaps on the front and back, and the bottom wall 15 is folded between the folding surfaces 10B and 10C.

The bottom wall 15 includes front and rear bottom wall flaps 151 and 152 connected to the front and rear side walls 11 and 12, and left and right bottom wall flaps 153 and 154 connected to the left and right end walls 13 and 14, respectively. The front bottom wall flap 151 and the right bottom wall flap 154 on both sides are bonded and fixed at an adhesive portion L1 indicated by hatching in the drawing to form a bottom wall constituting plate 15A, and the rear bottom wall flaps 152 on both sides of the corner portion C14. And the left bottom wall flap 153 are bonded and fixed at an adhesive portion L2 indicated by diagonal lines in the drawing to constitute a bottom wall constituting plate 15B. Further, leading end overlapping portions 151a and 152a projecting a predetermined amount so as to overlap the leading end of the counterpart flap at the leading end of the front bottom wall flap 151 in the left half of the drawing and the right half of the rear bottom wall flap 152 in the drawing. Is provided.
The bottom wall constituting plates 15A and 15B are provided with fold lines n11 and n12 having an angle of 45 ° from the bent corners C12 and C14. When the corners C12 and C14 of the body 10A are bent, the bottom wall Each of the 15 bottom wall constituting plates 15A and 15B is bent inward along the folding lines n11 and n12, and is folded between the side wall 11 and the end wall 14 and between the side wall 12 and the end wall 13.

The material of the corrugated cardboard constituting the box body 10 is selected according to the contents to be stored. However, when storing documents, a B flute (BF) having a thickness of about 5 mm and a liner strength of about K5 are sufficient. It is. In the present invention, since the upper weight when stacked is supported by the outer frame 20, it is not necessary to consider the upper weight for the box body 10, and it is only necessary to consider the weight of the stored items.
Further, since the pair of bottom wall constituting plates 15A and 15B constituting the bottom wall 15 are overlapped with each other, when storing heavy objects such as documents, a floor plate 40 is placed as shown in FIG. Placed. Four corners of the floor plate 40 are cut into corner cut portions 41. As the floor plate 40, a corrugated cardboard having a W flute (WF) structure is used. The corrugated ridge line of the corrugated core extends in the longitudinal direction of the floor plate 40 as shown by a partially broken arrow F40 in the drawing.

FIG. 3E shows an example of a blank 110 in which the box body 10 is developed.
The blank 110 has a single-sheet configuration, in which the body portion 10A of the box body 10 is vertically cut at the corner between the front side wall 11 and the left end wall 13 and spread horizontally.
That is, from the left, the front side wall 11, the right end wall 14, the rear side wall 12, and the left end wall 13 are connected in series in the order of fold lines m11, m12, and m13, and the left side of the front side wall 11 located at the left end. A connecting piece 16 bonded and fixed to the left end wall 13 located at the right end is connected to the edge via a fold line m14. The ridge line direction of the corrugated core constituting the corrugated cardboard is vertical so that the corrugated cross section appears at the upper ends of the front and rear side walls 11 and 12 and the left and right end walls 13 and 14, as shown in FIG. Extending in the direction.

Further, front and rear bottom wall flaps 151 and 152 constituting the bottom wall 15 are connected to end edges on the bottom wall side of the front and rear side walls 11 and 12 via fold lines m15 and m16. Left and right bottom wall flaps 153 and 154 constituting the bottom wall 15 are connected to the edge on the wall side via folding lines m17 and m18.
The front bottom wall flap 151 has a rectangular shape in which the length of the front side wall 11 is a long side and about half of the length of the adjacent right end wall 14 is a short side, and the fold line m15 with the front side wall 11 is on the right end wall 14 side. A fold line n11 is provided at an angle of 45 degrees from the end. A right-angled triangular region having the fold line n11 as a base and a corner as a vertex serves as a connecting piece portion 155 to be bonded to the planned bonding region 155L of the right bottom wall flap 154.
Further, the rear bottom wall flap 152 has a rectangular shape in which the length of the rear side wall 12 is a long side and about half the length of the adjacent left end wall 13 is a short side, and the left end wall 13 of the folding line m16 with the rear side wall 12. The fold line n12 is provided at an angle of 45 degrees from the end on the side. A right-angled triangular region having the fold line n12 as a base and a corner as a vertex serves as a connecting piece 156 to be bonded to the planned bonding region 156L of the left bottom wall flap 153.

As shown in FIG. 4A, the outer frame 20 is a rectangular cylindrical frame body, and includes a pair of front and rear side walls 21 and 22 and a pair of left and right end walls 23 and 24. The shape dimension of the outer periphery of the outer frame 20 is substantially equal to the shape dimension of the outer periphery of the trunk portion 10A of the box body 10 and is configured to be closely fitted to each other. That is, the dimension between the inner side surfaces of the front and rear side walls 21 and 22 is substantially equal to the dimension between the outer side surfaces of the front and rear side walls 11 and 12 of the box body 10, and the dimension between the inner side surfaces of the left and right end walls 23 and 24 is The dimension between the left and right end walls 13 and 14 is substantially equal, and the height of the outer frame 20 is also substantially equal to the height of the box body 10. The left and right end walls 23 and 24 are provided with handle holes 27 corresponding to the handle holes 17 of the box body 10.
The outer frame upper end surface 20A is constituted by the front and rear side walls 21, 22 and the upper end surfaces 20A1, 20A2, 20A3, 20A4 of the left and right end walls 23, 24, and these upper end surfaces 20A1, 20A2, 20A3, 20A4 are the same surface. Located on the top. The lower end surface 20B of the outer frame is constituted by the front and rear side walls 21, 22 and the lower end surfaces 20B1, 20B2, 20B3, 20B4 of the left and right end walls 23, 24, and these lower end surfaces 20B1, 20B2, 20B3, 20B4 are also in the same plane. Located on the top.
The outer frame 20 is a portion that supports the weight when stacked, and the front and rear side walls 21 and 22 have a double structure in which the front and rear inner side walls 211 and 221 and the front and rear outer walls 212 and 222 are overlapped. The left and right inner end walls 231 and 232 and the left and right outer end walls 241 and 242 have a double structure.

The corrugated cardboard constituting the front and rear side walls 21 and 22 and the left and right end walls 23 and 24 of the double structure, as shown by a partially broken arrow F20, has a corrugated ridge line extending in the vertical direction. 21 and 22 and the upper end surfaces 20A1, 20A2, 20A3 and 20A4 and the lower end surfaces 20B1, 20B2, 20B3 and 20B4 of the left and right end walls 23 and 24 have a structure in which the corrugated cross section of the corrugated cardboard is exposed. As the material of the cardboard, a cardboard having a thickness higher than that of the box body 10 is used. In this embodiment, as shown in FIG. 4B, a cardboard having a thickness of about 8 mm with a W flute structure is used. Thus, a thickness of about 16 mm is secured. Since the thickness is large, the folds between the front and rear side walls 21 and 22 and the left and right end walls 23 and 24 are cut from the outside. In this example, the front and rear outer walls 212 and 222 and the left and right outer end walls 232 and 242 are completely cut and separated until the inner liner remains between the front and rear inner walls 211 and 221 and the left and right inner end walls 231 and 241. It is cut (half cut) and has a foldable configuration. In a state where the corners C21, C22, C23, C24 of the front and rear side walls 21, 22 and the left and right end walls 23, 24 are perpendicular, the cut surface of the cut is exposed at an angle of 90 °.
In this embodiment, the convex portions 71 and the concave portions 72 constituting the lateral displacement prevention portion 70 are provided with the convex portions 71 and 71 on the upper end surfaces 20A1 and 20A2 of the front and rear side walls 21 and 22, and the lower end surfaces 20B1 of the front and rear side walls 21 and 22, respectively. , 20B2 are provided with recesses 72, 72 corresponding to the protrusions 71, 71.

As shown in FIG. 4C, the convex portion 71 has a trapezoidal shape in which the central portions of the upper end surfaces 20A1 and 20A2 of the front and rear side walls 21 and 22 are partially raised, and the upper surface 71a of the convex portion 71 is the front and rear side walls 21. , 22 are flat surfaces extending linearly in parallel with the upper end surfaces 20A1, 20A2, and both left and right end portions 71L, 71R are inclined surfaces, and guides for fitting the convex portions 25, 26 and the concave portions 27, 28 together. Function as.
The recess 72 is configured to be recessed in a trapezoidal shape following the convex portion 71 on the lower end surfaces 20B1 and 20B2 of the front and rear side walls 21 and 22, and the bottom surface of the recess 72 is parallel to the lower end surface 20B of the front and rear side walls 21 and 22 The left and right end portions 72L and 72R are engaged with the left and right end portions 71L and 71R of the convex portion 71 in the lateral direction on the flat surfaces extending in the longitudinal direction of 21 and 22, respectively. In the direction parallel to the horizontal direction). The left and right end portions 72L and 72R of the concave portion 72 are also inclined surfaces following the left and right end portions 71L and 71R of the convex portion 71.

From the viewpoint of regulating the lateral displacement, the upper surface 71a of the convex portion 71 and the bottom surface 72a of the concave portion 72 do not need to be in contact with each other, and a gap may be opened. If the convex upper surface 71a and the concave bottom surface 72a are in contact with each other as in the illustrated example, the upper load can be dispersed and supported also between the convex upper surface 71a and the concave bottom surface 72a. Further, there may be a gap between the left and right end portions 71L and 71R of the convex portion 71 and the left and right end portions 72L and 72R of the concave portion 72 within an allowable range.
Further, as shown in FIG. 4D, regarding the lateral displacement of the upper article storage box 1 and the lower article storage box 1 in the front-rear direction indicated by the arrow Y, the convex portions 71, 71 of the lower outer frame 20 are It is regulated by engaging the front side wall 11 and the rear side wall 12 of the upper box body 10.
In the illustrated example, the convex portion 71 and the concave portion 72 constituting the lateral deviation regulating portion are provided on the front and rear side walls 21 and 22, but the convex portion 71 and the concave portion 72 are not the front and rear side walls 21 and 22, but the left and right end walls 23 and 24. It may be provided on the side, or may be provided on one side wall of the front and rear side walls 21, 22 and one side wall of the left and right end walls 23, 24. In this way, all lateral shifts in the four directions of front, rear, left and right can be restricted.
Further, the convex portion 71 and the concave portion 72 may be provided only on one of the front and rear side walls 21, 22, or only on one end wall of the left and right end walls 23, 24. When it is provided only on one side wall, lateral displacement in both the left and right directions is restricted, but lateral displacement restriction in the front-rear direction is only in one direction. Moreover, when it is provided only on one end wall, the lateral displacement in the front-rear direction is restricted, but the lateral displacement restriction in the left-right direction is only in one direction.

As shown in FIG. 4 (E), the lateral displacement restricting portion 70 is structured such that the concave portion 72 is on the upper end surface 20A1 (20A2) of the front and rear side walls 21 (22) and the convex portion 71 is on the front and rear side walls 21 (22). You may provide in lower end surface 20B1 (20B2).
Moreover, it is not limited to the structure which engages with unevenness | corrugation. For example, as shown in FIG.4 (F), it stacked on the upper-lower-end surface 20A1 (20A2), 20B1 (20B2) of the front-and-back side wall 21 (22). In this case, the step portions 73 and 74 may be configured to engage in either one of the left and right directions. The stepped portions 73 and 74 regulate lateral displacement in one lateral direction, but the engaging direction of the stepped portion provided on one side wall 21 and the engaging direction of the stepped portion provided on the other side wall 22 are opposite to each other. If this is done, lateral shift in both the left and right directions can be regulated. Also in this case, the lateral displacement in the front-rear direction can be restricted by the engagement between the stepped portion 73 and the box body 10.
Further, as shown in FIG. 4G, the convex portions 75 do not contact each other in a loosely fitted state with respect to the concave portion 76, and the convex portions 75 engage only with the side surface of the upper box body 10 to restrict lateral displacement. Such a structure may be used. For example, when the convex part 75 is provided in the front side wall 21, the convex part 75 can engage with the front side wall 11 of the box main body 10, and can control the lateral shift in the front-rear direction. In addition, although not shown, when the convex portions are provided on the left and right end walls 13 and 14 side, the convex portions can be engaged with the left and right end walls of the box body 10, and the lateral shift in the left and right direction can be restricted.

5A and 5B are examples of the blank 120 in which the outer frame 20 is developed. The material of the cardboard is a W flute with a liner strength of K6.
The blank 120 has a configuration in which front and rear inner side walls 211 and 221 and left and right inner end walls 231 and 241, front and rear outer walls 212 and 222 and left and right outer end walls 232 and 242 are connected to each other at the lower end and expanded vertically. The walls 211 and 221 and the left and right inner end walls 231 and 241 are disposed on the lower side, and the front and rear outer walls 212 and 222 and the left and right outer end walls 232 and 242 are disposed on the upper side. 231 and 241 are upside down.
The front and rear inner side walls 211 and 221 and the left and right inner end walls 231 and 241 are fold lines m21, m22, and m23 in order of the rear inner wall 221, the right inner end wall 241, the front inner wall 211, and the left inner end wall 231 from the left. The rear inner wall 221 and the right inner end wall 241 are connected to the upper end edge in the drawing (the lower end of the outer frame 20 at the time of assembly) via the lower end folding lines n21 and n22. The front outer wall 212 and the left outer end wall 232 are connected to the upper end edges of the front inner wall 211 and the left inner end wall 231 of the outer end wall 242 via lower end fold lines n23 and n24. The rear outer wall 222, the right outer end wall 242, the front outer wall 212, and the left outer end wall 232 are independent of each other through slits s1, s2, and s3.

In the figure, a connecting piece 121 is connected to the left end of the rear inner wall 221 located at the left end via a fold line m24. On the other hand, a notch 122 corresponding to the connecting piece 121 is provided in the left inner end wall 231 located at the right end in the drawing. The notch 122 is provided with a convex part 122 a that fits into a concave part 121 a provided in the connecting piece 121.
The fold lines m21, m22, m23, m24 and the lower fold lines n21 to n24 are provided with half-cut lines.
The side edge of the front inner wall 211 and the front outer wall 212 opposite to the lower end fold line n23 is a portion that becomes the upper end surface 20A1 of the front side wall 21 when overlapped. A portion 711 and an outer convex portion 712 are provided. Further, the side edge of the rear inner wall 221 and the rear outer wall 222 opposite to the lower end fold line n21 is a portion that becomes the upper end surface 20A2 of the rear side wall 22, and an inner convex portion that forms the convex portion 71 at the central portion of the side edge. 711 and the outer convex part 712 are provided.

An inner recess 721 and an outer recess 722 constituting the recess 27 are provided at the center of the lower end fold line n23 of the front inner wall 211 and the front outer wall 212. The inner concave portion 721 and the outer concave portion 722 are formed vertically symmetrical with respect to the lower end fold line n23, and are combined with each other to form a punched hole 21A.
An inner recess 721 and an outer recess 722 constituting the recess 72 are provided at the center of the lower end fold line n21 of the rear inner wall 221 and the rear outer wall 222. The inner concave portion 721 and the outer concave portion 722 are formed vertically symmetrical with respect to the lower end fold line n21, and are combined with each other to form a punched hole 22A.
The left inner end wall 231 and the left outer end wall 232 are provided with inner handle holes 271 and 272 symmetrically with respect to the lower end fold line n24 so as to overlap each other to form one handle hole 27. In addition, inner handle holes 271 and 272 are provided in the right inner end wall 241 and the right outer end wall 242 in a vertically symmetrical manner with respect to the lower end fold line n21, and form one handle hole 27 overlapping each other.

FIG. 6A shows the reinforcing frame 30.
The reinforcing frame 30 is a rectangular tube-shaped frame body that is fitted to the outer surface of the outer frame 20 and includes a pair of front and rear side walls 31 and 32 and a pair of left and right end walls 33 and 34. The shape dimension of the inner periphery of the reinforcing frame 30 is substantially equal to the shape dimension of the outer periphery of the outer frame 20, and is configured to be closely fitted to each other. That is, the dimension between the inner side surfaces of the front and rear side walls 31 and 32 is substantially equal to the dimension between the outer side surfaces of the front and rear side walls 21 and 22 of the outer cylinder 20, and the dimension between the inner side surfaces of the left and right end walls 33 and 34 is The height dimension of the reinforcing frame 30 is substantially the same as the height dimension of the outer frame 20. The left and right end walls 33 and 34 are provided with handle holes 37 corresponding to the handle holes 17 of the box body 10 and the handle holes 27 of the outer frame 20.
Further, the corner portions of the front and rear side walls 31, 32 and the left and right end walls 33, 34 are chamfered corner portions C31, C32, C33, C34 having a shape cut obliquely by a predetermined width.
As shown in FIG. 4, the corners C21, C22, C23, and C24 of the outer frame 20 are formed by connecting the cut surfaces of the front and rear side walls 21 and 22 and the cut surfaces of the left and right end walls 23 and 24 with a single liner. Therefore, the reinforcing frame 30 is used for reinforcement. The corners C21, C22, C23, and C24 of the outer frame 20 are open at right angles to each other so that the corners C21, C22, C23, and C24 of the outer frame 20 are covered by the chamfered corners C31, C32, C33, and C34. It has become.
The reinforcing frame 30 functions not only as a reinforcement of the outer frame 20 but also as a decoration, and is appropriately colored and patterned. It is sufficient that the thickness of the corrugated cardboard constituting the reinforcing frame 30 is thinner than that of the box body 10, and in this example, a corrugated cardboard having an E flute structure of about 1.5 mm is used. The corrugated ridge line direction of the core of the corrugated cardboard extends in the horizontal direction as shown by a partially broken arrow F30 in the figure, and is formed on the upper and lower end surfaces of the side walls 31, 32 and the end walls 33, 34. The corrugated cross section of the corrugated board is not exposed, and the cut surface in the ridge line direction of the corrugated board is exposed.

  Convex pieces 371 and 371 corresponding to the convex portion 71 of the outer frame 20 are provided on the upper end edges of the front and rear side walls 31 and 32, and the lower end edges of the front and rear side walls 31 and 32 correspond to the concave portion 72 of the outer frame 20. Notches 372 and 372 are provided. These convex pieces 371 and notches 372 are formed in a shape that follows the side shapes of the convex portions 71 and the concave portions 72 of the outer frame 20.

6B and 6C are examples of blanks in which the reinforcing frame 30 is developed.
The blanks 131 and 132 are configured by two pieces in which adjacent side walls and end walls are a pair. The shapes of the blanks 131 and 132 are exactly the same.
In other words, the blank 131 has a chamfered corner C31, a front side wall 31, a chamfered corner C32, and a right end wall 34 connected in series to each other via folding lines m31, m32, and m33, and the other side of the chamfered corner C31 located at the left end. A connecting piece 133 that is bonded and fixed to the left end wall 33 of the blank 132 is connected via an inner folding line m34. The right end wall 33 is provided with a handle hole 37.
In the blank 132, the chamfered corner C33, the rear side wall 32, the chamfered corner C34, and the left end wall 33 are connected laterally in series through folding lines m131, m132, and m133, and the other blank is connected to the chamfered corner C33 located at one end. A connecting piece 134 bonded and fixed to the right end wall 34 of 131 is connected via an inner folding line m134. The right end wall 34 is provided with a handle hole 37.

FIGS. 7A to 7C show a lid 60 as an accessory.
The lid 60 is used only for the uppermost box when stacking, and covers the opening of the box body 10. As shown in FIG. 7 (A), the outer peripheral shape of the lid 60 is a corrugated board made of a rectangular shape with corners cut off following the outer peripheral shape of the reinforcing frame 30, and the side edges are external. It is placed on the upper end surface of the frame 20. The front and rear side edges of the lid 60 are provided with rectangular cutouts 61 and 62 at positions corresponding to the convex portions 71 and 71 provided on the upper end surface of the side wall of the outer frame 20. Is engaged with the convex portions 71, 71, so that the displacement of the lid 60 is restricted. Similar to the outer frame 20, the lid 60 has a structure in which two corrugated cardboards having a W flute structure are stacked, and a thickness of about 16 mm is used.

FIG. 7B shows a configuration example of the blank of the lid 60.
The blank 160 is formed by connecting side edges in the longitudinal direction of the inner lid 601 and the outer lid 602 having the same shape through a fold line m61, and is folded and overlapped at a fold line m61. It is a structure. As shown in FIG. 7C, the fold line m61 is in a half-cut state where one liner is left. The corrugated ridge line direction of the core of the corrugated cardboard constituting the lid 60 extends in a direction perpendicular to the longitudinal side edge as shown by a partially broken arrow F60 in the drawing.
The side edge of the inner lid 601 and the outer lid 602 opposite to the fold line m61 is a portion that becomes the front side edge of the lid 60 when overlapped, and an inner notch 611 that forms the notch 61 at the center of the side edge. An outer notch 612 is provided.
The fold line m61 of the inner lid 601 and the outer lid 602 is a portion that becomes the rear side edge of the lid 60 when overlapped, and an inner notch 621 and an outer notch 622 constituting the notch 62 are provided on the fold line m61. It has been. The inner notch 621 and the outer notch 622 are formed symmetrically with respect to the fold line m61, and are combined with each other to form a punch hole 62A.

7D, 7E, and 7F show the structure of the coupler 50. FIG.
When the box body 10, the outer frame 20, and the reinforcing frame 30 are assembled, as shown in FIG. 7D, the left and right end walls 13 (14) of the box body 10, the left and right end walls 23 (24) of the outer frame 20, and the reinforcement The left and right end walls 33 (34) of the frame 30 are overlapped to form one left and right multiple end walls 3 (4), the handle holes 17 of the left and right end walls 13 (14) of the box body 10, and the left and right end walls of the outer frame 20 23 (24) and the handle holes 37 in the left and right end walls 33 (34) of the reinforcing frame 30 overlap to form one handle hole 7. A coupler 50 is wound around the handle portion 8 having a rectangular cross section, which is a portion between the upper edge of the handle hole 7 and the upper end surface of the multiple end wall 3 (4), and is integrally coupled.

As shown in FIG. 7E, the coupler 50 is formed of a rectangular thin cardboard. In this example, a corrugated cardboard sheet having an E flute structure similar to that of the reinforcing frame 30 is used, the lateral width is slightly narrower than the handle hole 7 and the length is longer than the circumferential length of the cross section of the handle portion 8.
The coupler 50 is provided with folding lines m51, m52, m53, and m54 at positions corresponding to the corners 81, 82, 83, and 84 of the handle 8 and a width corresponding to the thickness of the handle 8 in the left-right direction. And three wide portions 51, 52, 53 having a width and two narrow portions 54, 55 provided between the wide portions 51, 52, 53 and having a width corresponding to the height of the handle 8. Has been. The ridge line direction of the corrugated core constituting the corrugated cardboard extends in the longitudinal direction of the coupler 50 as indicated by an arrow F50 in the figure.
Then, as shown in FIG. 7 (F), the wide portions 51 and 53 at both ends are overlapped and bonded and fixed on the handle hole side or upper end surface side of the handle portion 8, and the box body 10, the outer frame 20 and the reinforcing frame are fixed. 30 is coupled in the up and down direction so as not to be relatively movable.

The corrugated cardboard article storage box having the above-described configuration is provided in a set with the box body 10, the outer frame 20, and the reinforcing frame 30 folded in a compact form, together with the floor plate 40, the coupler 50, the lid 60, and a label (not shown). . The box body 10, the outer frame 20, and the reinforcing frame 30 all have a rectangular shape in which one side wall and one end wall having the same height dimension are connected, and a space for storage can be small.
When used, the bottom wall 15 of the box body 10 is expanded to form a three-dimensional shape, and the floor plate 40 is laid on the inner surface of the bottom wall 15. In this state, the outer frame 20 is expanded and inserted into the outer surface of the box body 10, and the reinforcing frame 30 is inserted into the outer surface of the outer frame 20. When the bottom wall 15 of the box body 10, the outer frame 20 and the lower end of the reinforcement frame 30 are aligned with the floor surface, one handle hole 7 formed in the end wall of the box body 10, the outer frame 20 and the reinforcement frame 30 is provided. As described above, the article storage box 1 can be easily assembled by connecting the handle portion 8 above the handle hole 7 with the coupler 50 as described above.

When documents are stored in the box body 10, labels are appropriately attached to the outer surface of the reinforcing frame 30 and stacked in a warehouse. When stacking, the convex portions 71 provided on the upper end surfaces of the outer frames 20 of the lower storage box 1 are provided on the lower end surfaces of the side walls 21 and 22 of the outer frame 20 of the upper storage box 1. The concave portion 72 is engaged with the concave and convex portions. Rather than being inserted into the hole as in the prior art, the alignment of the convex portion 71 and the concave portion 72 can be easily confirmed, so that the concave and convex portions can be easily engaged and stacked.
By the engagement of the convex portion 71 and the concave portion 72, lateral shift in the left-right direction between the lower storage box 1 and the upper storage box is regulated. Further, since the convex portions 71 of the lower storage box 1 and the outer surfaces of the side walls 21 and 22 of the box body 10 of the upper storage box are engaged, the lateral displacement in the front-rear direction is also regulated, stably held, and collapsed. It is not.
Further, since the upper and lower end portions of the outer frame 20 are in close contact with each other, the article storage boxes can be stacked in an orderly manner, and a comfortable work space in which a warehouse with a cluttered image is arranged is provided. In particular, a comfortable space can be produced by applying bright colors and decorations to the reinforcing frame 30.
Furthermore, since the load from the upper stage is supported by the outer frame 20, no load is applied to the box body 10 on the lower stage side even when stacked in multiple stages. Accordingly, the box main body 10 itself is not affected by the load from the upper side only by the load of the article to be stored, and there is no possibility of being crushed or deformed. The outer frame 20 has a thick structure in which two corrugated cardboards of W flute (WF) structure are stacked and has high rigidity, and the upper and lower end surfaces are constituted by cardboard cut surfaces, so that high flatness is maintained and a large load is achieved. Strong and stable.

Further, since the upper outer frame 20 and the lower outer frame 20 are in close contact with each other, simply by stacking the article storage boxes 1, the upper opening of the lower box body 10 is sealed, and basically the article storage box 1 is packed. There is no need to do so, and the work efficiency of storing and storing documents is greatly improved. Only the uppermost article storage box 1 is closed with the attached lid 60. The lid 60 has a structure that only needs to be mounted, and no troublesome work is required.
In the above embodiment, corrugated cardboard is used for the coupler 50, but it is not necessarily made of corrugated cardboard, and a resin sheet may be used, or an adhesive tape or the like may be used. Further, a plastic handle may be attached to the handle hole for coupling, and in short, it is only necessary that the box body and the outer frame can be coupled so as not to be movable in the vertical direction.
Moreover, in the said embodiment, although the reinforcement frame 30 was fitted to the outer surface of the outer frame 20, the reinforcement frame 30 does not need to be provided.

FIG. 1 is a schematic exploded perspective view of an article storage box according to an embodiment of the present invention. 2A is a perspective view showing a state in which the article storage boxes of FIG. 1 are stacked, FIG. 2B is a cross-sectional view showing the article storage boxes stacked in two stages in the front-rear direction, and FIG. ) Is a cross-sectional view taken along the line CC of FIG. 4B, and FIG. 4D is a partially enlarged cross-sectional view showing the upper and lower end surfaces of the outer frame serving as a loading surface. FIG. 3 shows the box body of the article storage box of FIG. 1, wherein FIG. 3A is a schematic perspective view, FIG. 3B is a plan view, and FIG. 3C is a plan view showing a state in the middle of folding. (D) is a side view in a folded state, (E) is a developed view, and (F) is a plan view showing a floor plate. 4A and 4B show the outer frame of the article storage box of FIG. 1, wherein FIG. 4A is a schematic perspective view, FIG. 4B is a partially enlarged perspective view showing an upper end surface, and FIG. The front view for explaining the engagement relationship between the convex part and the concave part, FIG. 10D is a side view showing a part of FIG. It is a schematic side view which shows the other aspect of a part. FIG. 5A is a view showing a blank in which the outer frame of FIG. 4 is developed, and FIG. 5B is a view showing an assembled state of the blank of FIG. 6 shows a reinforcing frame of the article storage box of FIG. 1. FIG. 6 (A) is a schematic perspective view, FIG. 6 (B) is a developed view, and FIG. 6 (C) is an exploded perspective view. FIGS. 7A to 7C show a lid as an accessory of the article storage box of FIG. 1, wherein FIG. 7A is a schematic perspective view, FIG. 7B is a developed view, and FIG. ) Is a schematic enlarged partial perspective view showing the incision state of the fold line, FIGS. (D) to (F) show the coupling tool of the article storage box of FIG. 1, and (D) is coupled by the coupling tool. FIG. 4E is a developed view of the coupler, and FIG. 5F is a schematic perspective view of the coupler folded with a fold line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Goods storage box 3, 4 Front side wall, rear side wall 7 Hook hole 8 Hook part 81, 82, 83, 84 Corner part 10 Box body 10A Body 11,12 Front side wall, rear side wall, 13, 14 Left end wall, Right end wall 15 bottom wall 15A, 15B bottom wall constituting plate 151, 152 front bottom wall flap, rear bottom wall flap 151a, 152a protrusion 153, 154 left bottom wall flap, right bottom wall flap n1, n2 folding line 17 handle hole C11, C12 , C13, C14 Corner 10B, 10C Folding surface 110 Blank 20 Outer frame 21, 22 Front side wall, Rear side wall 211, 221 Front inner side wall 212, 222 Front outer side wall, Rear outer side wall 23, 24 Left end wall, Right end wall 231,232 Left inner end wall, right inner end wall 241,242 Left outer end wall, right outer end wall C21, C22, C23, C24 Corner portion 27 Hand hole 70 Side shift Control part 71 Convex part 71a Convex part top surface, 71L, 71R Left end part, right end part 72 Concave part 72a Concave bottom face, 72L, 72R Left end part, right end part 73, 74 Step part 75 Convex part, 76 Concave part 120 Blank m21, m22, m23 , M24 fold line n21, n22, n23, n24 lower end fold line s1, s2, s3 slit 121 connecting piece, 121a recess 122 notch, 122a protrusion 711 inner protrusion, 712 outer protrusion 721 inner recess, 722 outer recess 21A 22A Punching hole,
231, 232 Inner end wall, outer end wall 271 Inner handle hole, 272 Outer handle hole 30 Reinforcement frame 31, 32 Front side wall, rear side wall, 33, 34 Left end wall, right end wall C31, C32, C33, C34 Chamfered corner 371 Convex piece, 372 Notch 37 Handle hole 131, 132 Blank m31-m34, m131-m134 Folding line 133,134 Connecting piece 40 Base plate 41, 41 Corner cut part 110 Blank (box body)
m11 to m18 fold line n1, n2 fold line 155, 156 connecting piece part 50 coupler m51, m52, m53, m54 fold line 51, 52, 53 wide part 54, 55 narrow part 60 lid 601 inner lid, 602 outer lid ,
m61 fold line 61, 62 notch 611 inner notch, 612 outer notch 621 inner notch, 622 outer notch 160 blank 62A punched hole

Claims (8)

An article comprising a corrugated cardboard box body having an open top and a non-covered corrugated cardboard box body and a cylindrical corrugated cardboard outer frame fitted to the outer surface of the box body, the box body and the outer frame being combined A storage box,
The upper and lower end surfaces of the outer frame are constituted by cardboard cutting surfaces, and the lower end surface of the outer frame of the upper article storage box is placed on the upper end face of the outer article storage box when stacking the article storage boxes An article storage box, characterized in that a lateral deviation restricting portion for restricting lateral deviation of the stacked upper and lower article storage boxes is provided on the outer frame.   2. The article according to claim 1, wherein the corrugated cardboard constituting the outer frame has a configuration in which the corrugated ridgeline direction of the core extends in the vertical direction, and the corrugated cross section of the core is exposed on the upper and lower end surfaces. Storage box.   3. The article storage box according to claim 1, wherein the outer frame has a multiple structure in which a plurality of cardboards are superposed.   The lateral displacement restricting portion is constituted by a concave portion and a convex portion that are provided between the contact surfaces of the outer frame upper end surface of the stacked lower article storage box and the outer frame lower end surface of the upper article storage box and that engage with each other. The article storage box according to any one of claims 1 to 3, wherein the article storage box is provided.   5. A handle hole penetrating from the outer side surface of the outer frame to the inner side surface of the box body, and a coupler for connecting the outer frame and the box body using the handle hole. The article storage box according to the section.   6. The article storage box according to claim 5, wherein the coupling tool is a cardboard sheet that is wound around and fixed to a portion between the upper edge of the handle hole and the outer frame and the upper end surface of the box body.   The article storage box according to any one of claims 1 to 6, wherein a corrugated cardboard reinforcing frame is attached to an outer surface of the outer frame.   The lid according to any one of claims 1 to 8, wherein a lid separate from the box body is provided as an accessory, and the upper opening of the stacked uppermost article storage box is closed. Goods storage box.

Images