JP2023154629A - Article box - Google Patents

Abstract

To provide an article box suppressed in a thickness size influencing delivery cost.SOLUTION: An article box 1 comprises: a bottom wall 11; a pair of first side walls 12; a double wall-structured second side wall 13 having an outer wall part 131 and an inner wall part 132; a pair of corner connection parts 16 that erect the second side wall 13 by connecting the first side walls 12 to the outer wall part 131 of the second side wall 13 and by interlocking with the erection of the first side walls 12; a pair of surface fitting tongue pieces tongue-likely extending from the inner wall part 132 and fitting to the surface of the bottom wall 11; and a pair of locking parts 18 projecting from opposite edges facing the pair of first side walls 12 in the pair of surface fitting tongue pieces, and locked to the pair of first side walls 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to an article box that can be used, for example, as a delivery box for articles in mail-order sales.

Conventionally, goods boxes such as cardboard boxes have been known in which when the body is unfolded into a cylindrical shape from a flat folded state, a plurality of flaps are combined to form a bottom wall in conjunction with the unfolding action. (For example, see Patent Document 1). Such article boxes are widely used because a space for accommodating articles is formed by the cylindrical body and the bottom wall by a one-touch operation of expanding the body into a cylindrical shape.

Japanese Patent Application Publication No. 2020-19529

In many of the above-mentioned one-touch type goods boxes, in order to form a bottom wall by combining the flaps, an engaging claw is provided at the part where the flaps are combined, and the engaging parts of each flap are assembled so as to overlap. , the bottom wall tends to be thick. Here, thin shipping boxes often used for mail-order sales and the like often require strict dimensional settings because the shipping cost fluctuates depending on slight differences in the thickness of the box. At this time, in the above-mentioned one-touch type goods box, the thickened bottom wall may affect the thickness dimension of the delivery box, which may result in an increase in delivery costs.

The present invention aims to solve this problem. That is, an object of the present invention is to provide a product box that can reduce the thickness dimension that affects the shipping cost.

In order to achieve the above object, the article box of the present invention includes a pair of first sides extending opposite to each other, and a second side extending in a direction crossing the direction in which the pair of first sides extend. a bottom wall having a bottom wall, a pair of first side walls folded up from each of the pair of first side edges, an outer wall section folded up from the second side edge, and an outer wall along the second side edge of the outer wall section. A double wall having an inner wall portion folded in a mountain fold so as to overlap the outer wall portion with the end side being a mountain fold, and partitioning an article storage space together with the bottom wall and the pair of first side walls, a second side wall in which the outer wall portion and the inner wall portion are bonded to each other leaving non-bonded portions at both ends in the crossing direction; and a first side located on the side of the second side wall in each of the pair of first side walls. and a corner portion that connects a second side edge located on each side of the pair of first side walls in the outer wall portion, and is sandwiched between the outer wall portion and the inner wall portion in each of the pair of non-bonded portions. a pair of corner connecting portions that are provided in the inner wall portion and that cause the second side wall to rise in conjunction with the rise of the pair of first side walls; a pair of facing tongues extending in the shape of tongues, bent in a valley fold with each side portion as a valley fold, and facing the bottom wall; It is characterized by comprising a pair of locking portions that protrude from opposing edges facing each of the side walls and lock onto each of the pair of first side walls.

According to the article box described above, the one-touch operation of raising the pair of first side walls also causes the second side walls to rise in conjunction with each other, thereby defining the storage space for the articles. The locking portions protruding from each of the pair of surface tongue pieces connected to the second side wall of the double wall structure are locked to the first side wall, so that the storage space partitioned by one-touch operation as described above can be opened. It will be maintained. At this time, since the first side wall is locked by the locking part to maintain the storage space, the above locking has no effect on the thickness of the bottom wall, that is, the thickness dimension of the article box. Never. In other words, according to the above-mentioned article box, the thickness dimension, which affects the shipping cost, can be suppressed.

Here, the inner wall portion of each of the pair of non-bonded portions has a valley that extends diagonally away from the mountain fold and toward an end side of the inner wall as it moves away from each of the pair of first side walls in the intersecting direction. A fold-shaped diagonal crease is provided, and when the pair of locking portions are locked to the pair of first side walls, the inner wall portion in the non-adhesive portion is temporarily valley-folded by the diagonal crease. By being folded back, the pair of surface tongue pieces and the pair of locking portions can wrap around inside the pair of first side walls while avoiding interference with the pair of first side walls, and can be inserted from the inside. It is preferable that the first side wall is engaged with the pair of first side walls.

According to this configuration, the inner wall portion of the non-adhesive portion where the facing tongue piece is provided is temporarily folded back into a valley fold at the diagonal crease, thereby avoiding interference with the first side wall and creating a good shape. The locking portion can be locked from inside the first side wall with ease of operation.

Further, the pair of faceted tongue pieces has at least a part of the range extending from each end of the inner wall end side to the end of each of the pair of diagonal folds as the side portion, and extends from the side portion. It is preferable that

According to this configuration, since the facing tongue piece is connected only to the part of the inner wall of the non-adhesive part that is folded back at the diagonal fold, the facing tongue piece does not get in the way of folding back the inner wall part. Therefore, the locking portion can be locked with better workability.

Further, each of the pair of corner connecting portions has at least one of an end on the second side wall side of each of the pair of first sides and each of both ends of the second side as a corner. It is preferable that the product has a shape and is provided with a valley fold line extending from the corner, and is formed so as to be sandwiched between the outer wall portion and the inner wall portion when folded in a valley fold along the valley fold line. It is.

According to this configuration, by folding the corner connecting portion along the valley fold line, the second side wall can be made to stand up in an effective manner in conjunction with the standing up of the pair of first side walls.

Further, each of the pair of first side walls is formed with a slit at a position closer to the bottom wall corresponding to each of the pair of locking portions, and each of the pair of locking portions is formed in the pair of slits. It is preferable to lock each of the pair of first side walls by inserting and locking.

According to this configuration, the locking portion can be firmly locked to the first side wall by being inserted and locked into the slit, and in other words, the storage space in the article box can be firmly maintained.

According to the above-mentioned article box, the thickness dimension, which affects the shipping cost, can be suppressed.

It is a perspective view showing an article box concerning a 1st embodiment. FIG. 2 is a plan view showing a single sheet developed from the article box shown in FIG. 1; FIG. 3 is a plan view showing a developed body made from the single sheet shown in FIG. 2; A perspective view showing a state in the middle of the folding work of a pair of first and second side walls, which is performed at the initial stage of the box manufacturing work to create the unfolded body shown in FIG. 3 or the article box shown in FIG. It is a diagram. FIG. 5 is a perspective view showing a state in which a pair of first and second side walls are erected after the folding operation shown in FIG. 4; It is a schematic diagram which shows the function of a pair of corner connection parts which interlock and stand up a 2nd side wall when a pair of 1st side walls are opened. It is a figure which shows the characteristic part of the goods box of 2nd Embodiment. It is a perspective view which shows the box main body in the goods box of 3rd Embodiment. FIG. 9 is a plan view showing a single sheet developed from the box body shown in FIG. 8; It is a perspective view which shows the box-shaped lid of the goods box of 3rd Embodiment. FIG. 11 is a plan view showing a single sheet with the box-shaped lid shown in FIG. 10 developed.

Hereinafter, an embodiment of an article box that can suppress the thickness dimension that affects delivery costs will be described. First, a first embodiment will be described.

FIG. 1 is a perspective view showing an article box according to the first embodiment, and FIG. 2 is a plan view showing a single sheet in which the article box shown in FIG. 1 is developed.

The article box 1 shown in FIG. 1 is a thin cardboard box that is often used as a delivery box in mail-order sales and the like. This article box 1 is a thin rectangular box that includes a bottom wall 11, a pair of first side walls 12, a second side wall 13, a third side wall 14, and a lid wall 15. It becomes. The article box 1 is constructed into a box shape by performing a box-making operation on an expanded body 1b (FIG. 3), which will be described later, which is made from a single sheet 1a with these six walls expanded.

The bottom wall 11 includes a pair of first side edges 111 extending opposite to each other, a second side edge 112 extending in a direction D12 intersecting an extending direction D11 of the pair of first side edges 111, and the second side edge 112. It is a rectangular plate-shaped wall having a third side 113 extending opposite to 112 . A pair of first side sides 111, second side sides 112, and third side sides 113 that constitute the outer periphery of the bottom wall 11 are all folds where the walls connected to each side are folded. A plurality of slits are formed intermittently to help it stand up, making it easier to break.

The pair of first side walls 12 are rectangular strip-shaped walls that are folded up from each of the pair of first sides 111 and whose long sides extend in the extending direction D11 of each first side 111.

The second side wall 13 has an outer wall portion 131 and an inner wall portion 132, and is a double wall in the shape of a rectangular strip whose long sides extend in a direction D12 intersecting the extending direction D11. This second side wall 13, together with the bottom wall 11, a pair of first side walls 12, and a third side wall 14, which will be described later, defines an article storage space A11. The outer wall portion 131 is a rectangular band-shaped wall that is folded up from the second side. In addition, the inner wall portion 132 is a wall having approximately the same shape as the outer wall portion 131, which is folded into a mountain fold so as to overlap the outer wall portion 131 with the outer wall end side 133 along the second side 112 as a mountain fold in the outer wall portion 131. be. The second side wall 13 is configured by bonding the outer wall portion 131 and the inner wall portion 132 to each other, leaving non-bonded portions 13a at both ends in the cross direction D12.

The third side wall 14 is a rectangular strip-like wall that is folded up from the third side 113 of the bottom wall 11 and faces the second side wall 13 and has substantially the same shape as the second side wall 13 .

The lid wall 15 extends along the third side 113 of the third side wall 14 and extends from a third side wall edge 141 that extends opposite the outer wall edge 133 of the second side wall 13 and is substantially the same as the bottom wall 11 . The wall is shaped like a rectangular plate. The lid wall 15 has the third side wall edge 141 as a hinge, and has a closed position in which it closes the accommodation space A11 so as to face the bottom wall 11, and an open position in which it separates from the bottom wall 11 and opens the accommodation space A11. , and is provided so as to be openable and closable in the opening and closing direction D13.

Here, the article box 1 of this embodiment is provided with a pair of corner connecting portions 16 that connect each of the pair of first side walls 12 and the second side wall 13 so as to form corner portions of the article box 1. The pair of corner connecting portions 16 are provided at the first side edge 121 located on the side of the second side wall 13 in each of the pair of first side walls 12 and at the outer wall portion 131 of the second side wall 13 at each of the pair of first side walls 12. The second side edges 134 located on the sides are connected to form a corner part. The pair of corner connecting portions 16 are provided so as to be sandwiched between the outer wall portion 131 and the inner wall portion 132 in each of the pair of non-adhesive portions 13a of the second side wall 13, and are interlocked with the rising of the pair of first side walls 12. The second side wall 13 is erected.

The article box 1 has a structure that maintains the pair of first side walls 12 and second side walls 13 in an upright state, and includes a pair of surface tongue pieces 17 connected to the inner wall portion 132 of the second side wall 13, and A pair of locking portions 18 are provided that protrude from each of the pair of surface tongue pieces 17.

Further, the article box 1 is provided with the following structure as a structure for maintaining the closed position when the article is stored and the lid wall 15 is closed. That is, the structure for maintaining the closed posture of the lid wall 15 includes a pair of flaps 19 connected to the pair of first side walls 12, a lid side covering wall 21 connected to the lid wall 15, and a lid protruding from the lid side covering wall 21. A side locking portion 22 and a pair of flap locking portions 23 connected to the lid wall 15 are provided.

FIG. 3 is a plan view showing a developed body made from the single sheet shown in FIG. 2. Further, FIG. 4 shows a folding operation of a pair of first and second side walls, which is performed in the initial stage of the box manufacturing operation to create the unfolded body shown in FIG. 3 or the article box shown in FIG. 1. FIG. 3 is a perspective view showing an intermediate state. FIG. 5 is a perspective view showing a state in which the pair of first and second side walls are erected after the folding operation shown in FIG. 4.

First, as shown in FIG. 3, in the unfolded body 1b, the second side wall 13, in which the outer wall portion 131 and the inner wall portion 132 are folded and bonded to each other leaving non-bonded portions 13a at both ends, is attached to the second side wall 13. It extends from the side 112 flush with the bottom wall 11. Further, the pair of first side walls 12 are folded with the pair of flaps 19 open. At this time, a pair of corner connecting portions 16 are inserted into each of the pair of non-adhesive portions 13a, and a pair of surface tongue pieces 17 having a pair of locking portions 18 at each tip are inserted into the pair of first side walls 12 and the pair of non-adhesive portions 13a. It is overlapped on a part of the flap 19 of.

The pair of surface tongue pieces 17 and the pair of locking parts 18 will be explained. The pair of faceted tongue pieces 17 extend in the shape of tongues from side portions 135a at both ends of the inner wall end side 135 facing the bottom wall 11 in the inner wall portion 132, and are folded into a valley fold with each side portion 135a as a valley fold. This is the part that is bent and attached to the bottom wall 11. Furthermore, the pair of locking portions 18 protrude from opposing edges of the pair of surface tongue pieces 17 that face the pair of first side walls 12, respectively, and lock onto the pair of first side walls 12, respectively. Here, a diagonal fold line 136 is provided on the inner wall portion 132 of each of the pair of non-bonded portions 13a. Each diagonal fold 136 is a valley fold-like fold that diagonally moves away from the mountain fold of the outer wall edge 133 toward the inner wall edge 135 as it moves away from each of the pair of first side walls 12 in the above-mentioned intersecting direction D12. It is. The pair of side-fitting tongue pieces 17 have a side portion 135a extending from each end of the inner wall edge 135 to the end of each of the pair of diagonal folds 136 on the inner wall edge 135 side, and has a side portion 135a. It is extending.

When the unfolded body 1b is transformed into the article box 1, the pair of first side walls 12 are opened in the unfolding direction D14, as shown in FIG. At this time, the second side wall 13 is interlocked and erected in the erecting direction D15 due to the action of the pair of corner connecting portions 16.

FIG. 6 is a schematic diagram showing the function of a pair of corner connecting portions that interlock and raise the second side wall when the pair of first side walls are opened.

Before explaining the function of the pair of corner connecting parts 16, the shape of each corner connecting part 16 will be explained in more detail with reference to FIG. Each of the pair of corner connecting portions 16 has a substantially rectangular shape with corner portions corresponding to the ends on the 112 side of the second side wall of each of the pair of first sides 111 and the corresponding portions of both ends of the second side 112. has. A valley fold line 161 is provided diagonally extending from this corner. Further, each valley fold line 161 stops midway along the diagonal line, and a cut 162 is formed from the end point of the valley fold line 161 at right angles to the outer side.

Now, the function of such a pair of corner connecting portions 16 when the unfolded body 1b is transformed into the article box 1 will be explained with reference to FIG. 6. In the initial stage when the pair of first side walls 12 are opened, the corner connecting portion 16 extending in a flat plate shape raises the second side wall 13 while pushing up the inner wall portion 132 of the non-bonded portion 13a of the second side wall 13 from inside. let At this time, the second side wall 13 is pressed to further stand up so that the corner connecting portion 16 is pushed inward and folded into a valley fold along the valley fold line 161. Further, the valley fold along the valley fold line 161 is performed while leaving the tip side of the notch 162 in the corner connecting portion 16 on the outer wall portion 131 side of the non-adhesive portion 13a. Finally, the corner connecting portion 16 is sandwiched between the outer wall portion 131 and the inner wall portion 132 in a state where the outer wall portion 131 side has a hook shape and is folded in a valley fold along the valley fold line 161. .

After the pair of first side walls 12 and second side walls 13 are erected in this way, the pair of surface tongue pieces 17 are folded in, and the pair of locking portions 18 are engaged with the pair of first side walls 12. A stop occurs. As described above, in the state of the unfolded body 1b, the pair of surface tongue pieces 17 and the pair of locking parts 18 overlap on the pair of first side walls 12 and the pair of flaps 19. As shown in FIG. 6, in the initial stage when the pair of first side walls 12 are opened, the inner wall portion 132 in the non-adhesive portion 13a is temporarily folded back into a valley fold at the diagonal fold line 136. As a result, the pair of surface tongue pieces 17 and the pair of locking parts 18 can be moved inside the pair of first side walls 12 and the pair of flaps 19 while avoiding interference with the pair of first side walls 12 and the pair of flaps 19. be passed around. After wrapping inward, the inner wall portion 132 is folded back at the diagonal crease 136, and while the corner connecting portion 16, which is in the folded state as described above, is sandwiched between the outer wall portion 131 and the inner wall portion 132, a pair of surface tongues are formed. The piece 17 is folded into a valley fold at the root side portion 135a so as to be flat against the bottom wall 11. Then, along with the valley folding of the surface tongue piece 17, the pair of locking portions 18 are locked to the pair of first side walls 12.

In this embodiment, slits 123 are formed in each of the pair of first side walls 12 at positions closer to the bottom wall 11 corresponding to the pair of locking portions 18, respectively. Each of the pair of locking portions 18 is locked to each of the pair of first side walls 12 by being inserted and locked into the pair of slits 123 . By inserting and locking the locking portion 18 into the slit 123, the walls other than the lid wall 15 of the unfolded body 1b are placed in an upright state, as shown in FIG. After this, the third side wall 14 is folded up and the article box 1 is completed. Note that the storage of articles may be carried out when the three walls are in the erected state as shown in FIG. 5, or may be carried out when the article box 1 is in the completed state as shown in FIG. 1. .

The transformation from the developed body 1b in FIG. 5 to the article box 1 in FIG. 1 will be described. First, the third side wall 14 is folded up from the third side 113 of the bottom wall 11 together with the lid wall 15 . At this time, an inner tongue piece 24 is provided at the end of the pair of first side walls 12 on the third side wall 14 side, and is attached to the third side wall 14 from inside. The third side wall 14 is folded up so that the pair of inner tongue pieces 24 are flush with each other from the inside. Thereafter, the article is stored in the storage space A11, and the pair of flaps 19 are bent and the lid wall 15 is closed. The pair of flaps 19 are bent at each side wall edge 122 so as to extend from the side wall edge 122 along each of the pair of first side edges 111 in each of the pair of first side walls 12 to the inside of the accommodation space A11. . After that, the lid wall 15 is closed, and the lid wall 15 is closed together with the deformation of the lid-side covering wall 21, the lid-side locking portion 22, and the pair of flap locking portions 23.

First, the lid-side covering wall 21 extends in the lid wall 15 to face the third side wall edge 141 of the third side wall 14, and is in contact with the outer wall edge 133 of the second side wall 13 in the closed position. It extends from the end side 151. Then, the lid side covering wall 21 is bent at the outer wall side lid end side 151 so as to overlap and cover the outer surface of the outer wall portion 131 of the second side wall 13 in the closed position.

The lid-side locking portion 22 extends in the shape of a T-shaped tongue with overhanging portions 221 projecting on both sides from the tip side 211 that is on the bottom wall 11 side when the lid-side covering wall 21 is in the closed position. It is a part. When closed, the lid side locking portion 22 is bent into a mountain fold with the tip side 211 as a mountain fold, and is locked to the second side wall 13 so as to enter the accommodation space A11 from the outside of the second side wall 13. An outer wall slit 131 a is formed in the outer wall portion 131 of the second side wall 13 at a position closer to the bottom wall 11 corresponding to the lid-side locking portion 22 . The lid-side locking portion 22 is inserted and locked into the outer wall slit 131a from the outer wall portion 131 side of the second side wall 13. The slit width in the cross direction D12 in the outer wall slit 131a is shorter than the locking width in the cross direction D12 of the lid side locking part 22, and when the lid side locking part 22 is inserted and locked, the slit width on both sides of the lid side locking part 22 is The portion 221 is in a state projecting from the accommodation space A11 side of the outer wall slit 131a in the cross direction D12. Further, a lock claw 131b protrudes from the upper side portion of the outer wall slit 131a, and when the lid-side locking portion 22 is inserted and locked into the outer wall slit 131a, it locks into the lock hole 222 provided in the lid-side locking portion 22. The claw 131b enters and is locked. Further, in a location adjacent to the outer wall slit 131a in the bottom wall 11, a locking release portion 114 is surrounded by perforations and can be opened by tearing the perforations to release the locking of the lid side locking portion 22. (Fig. 2) is provided.

A pair of flap locking portions 23 are provided in the lid wall 15 in the form of tongues from each of a pair of lid side edges 152 that extend across the respective extending directions of the third side wall edge 141 and the outer wall side lid edge 151. Extend to. The pair of flap locking portions 23 enter the accommodation space A11 in the closed position and lock onto each of the pair of flaps 19. At this time, a flap slit 191 is formed in each of the pair of flaps 19 at a position corresponding to each of the pair of flap locking portions 23. Each of the pair of flap locking portions 23 is locked to each of the pair of flaps 19 by being inserted and locked into the pair of flap slits 191 .

According to the article box 1 of the first embodiment described above, by the one-touch operation of raising the pair of first side walls 12, the second side walls 13 are also raised in conjunction with each other, thereby dividing the article storage space A11. . The locking portions 18 protruding from each of the pair of surface tongue pieces 17 connected to the second side wall 13 of the double-walled structure are locked to the first side wall 12, so that the sections can be partitioned with one-touch operation as described above. The storage space A11 will be maintained. At this time, since the first side wall 12 is locked by the locking part 18 for maintaining the storage space A11, the above locking is performed on the thickness of the bottom wall 11, that is, the thickness of the article box 1. has no influence whatsoever. That is, according to the above-described article box 1, the thickness dimension, which affects the shipping cost, can be suppressed.

Here, in the present embodiment, when the locking portion 18 is locked, the inner wall portion 132 of the non-adhesive portion 13a is temporarily folded back into a valley fold at the diagonal fold 136, and the surface tongue piece 17 and the locking portion 18 are folded back. It is configured to wrap around the inside of the first side wall 12 and lock from the inside. According to this configuration, the locking portion 18 can be locked from inside the first side wall 12 with good workability while avoiding interference with the first side wall 12.

Further, in this embodiment, the facing tongue piece 17 extends from the side portion 135a that covers substantially the entire range from both ends of the inner wall end side 135 to the end of the diagonal fold line 136. According to this configuration, the facing tongue piece 17 is connected only to the portion folded back at the diagonal fold line 136 in the inner wall portion 132 of the non-adhesive portion 13a. Therefore, the surface tongue piece 17 does not get in the way of folding back the inner wall portion 132, and the locking portion 18 can be locked with better workability.

Further, in this embodiment, a diagonal valley fold line 161 is provided in the substantially rectangular corner connecting portion 16, and the non-adhesive portion 13a is folded along the valley fold line 161 in a valley-fold state between the outer wall portion 131 and the inner wall. It is sandwiched between portions 132. According to this configuration, by folding the corner connecting portion 16 along the valley fold line 161, the second side wall 13 can be caused to stand up in an effective manner in conjunction with the rising of the first side wall 12.

Furthermore, in this embodiment, the locking portion 18 is configured to be locked to the first side wall 12 by being inserted into and locked to a slit 123 provided in the first side wall 12 . According to this configuration, the locking portion 18 can be firmly locked to the first side wall 12 by being inserted and locked into the slit 123. In other words, the storage space A11 in the article box 1 can be firmly maintained. can.

Further, in this embodiment, the flap 19 extends inward from the first side wall 12. According to this configuration, the articles accommodated in the accommodation space A11 can be held and stabilized by the flaps 19.

Further, in this embodiment, a third side wall 14 facing the second side wall 13 is provided. According to this configuration, the article storage space A11 can be firmly partitioned by adding the third side wall 14 to the bottom wall 11, the pair of first side walls 12, and the second side walls 13.

Further, in this embodiment, the third side wall 14 is provided with a lid wall 15 that can be opened and closed. According to this configuration, since the lid wall 15 is provided integrally with the part that partitions the article storage space A11, the number of parts can be reduced compared to, for example, a case where a separate lid member is provided. The article box 1 can be made easier to handle.

Further, in the present embodiment, a lid-side covering wall 21 is provided which is overlapped with the outer surface of the outer wall portion 131 of the second side wall 13 to cover the outer surface in the closed position, and a lid which extends in the shape of a tongue from the distal end side 211 of the cover wall 21. A side locking portion 22 is provided. According to this configuration, by locking the lid-side locking portion 22 to the second side wall 13, the closed posture of the lid wall 15 can be effectively maintained.

Further, in this embodiment, the lid-side locking portion 22 is configured to be inserted and locked into an outer wall slit 131a provided in the outer wall portion 131 of the second side wall 13. According to this configuration, the lid-side locking portion 22 can be firmly locked to the second side wall 13 by being inserted and locked into the outer wall slit 131a, and in other words, the closed posture of the lid wall 15 can be firmly maintained. be able to.

Further, in this embodiment, a pair of flap locking portions 23 are provided on the lid wall 15 and configured to be inserted and locked into flap slits 191 provided in each of the pair of flaps 19. According to this configuration, by locking the flap locking portion 23 to the flap 19 by inserting and locking into the flap slit 191, the closed posture of the lid wall 15 can be maintained more firmly.

This concludes the description of the first embodiment, and next, the second embodiment will be described. This second embodiment differs from the first embodiment only in the locking form of the locking portions 18 at both ends of the second side wall 13. The second embodiment will be described below, focusing on the differences from the first embodiment, and illustrations and explanations of the same points, such as the overall configuration, will be omitted.

FIG. 7 is a diagram showing characteristic parts of the article box of the second embodiment. In this FIG. 7, the same reference numerals as in FIGS. 1 to 6 are given to components equivalent to those of the first embodiment shown in FIGS. 1 to 6, and they will be described below. Duplicate explanations of equivalent components will be omitted.

In the article box 3 of the second embodiment, the locking portions 18 protruding from the facing tongue pieces 17 at both ends of the inner wall portion 132 of the second side wall 13 are locked to the first side wall 32 by friction. In this embodiment, the first side wall 32 is not provided with a slit. As the facing tongue piece 17 is folded inward so as to face the bottom wall 11, the locking part 18 deforms upward into an L-shape and slides against the inner surface of the first side wall 32. Slide towards wall 11. The locking portion 18 is locked to the first side wall 32 by the friction of this sliding. Note that the frictional locking of the locking portion 18 is not limited to locking that deforms into an L-shape as described above; for example, the tip of the locking portion 18 is compressed and the inner surface of the first side wall 32 is It may be secured to the first side wall 32 by sliding.

It goes without saying that the article box 3 of the second embodiment described above can also suppress the thickness dimension, which influences the delivery cost, similarly to the article box 1 of the first embodiment described above.

Next, a third embodiment will be described. The third embodiment differs from the first embodiment in that a box-shaped lid is provided separately from the box body.

FIG. 8 is a perspective view showing the box main body of the article box of the third embodiment, and FIG. 9 is a plan view showing a single sheet of the box main body shown in FIG. 8 developed. Further, FIG. 10 is a perspective view showing a box-shaped lid in the article box of the third embodiment, and FIG. 11 is a plan view showing a sheet in which the box-shaped lid shown in FIG. 10 is developed. It is. In addition, in these FIGS. 8 to 10, components equivalent to those of the first embodiment shown in FIGS. 1 to 6 are given the same reference numerals as in FIGS. 1 to 6, In the following, redundant explanation of these equivalent components will be omitted.

First, the box body 4 shown in FIG. 8 has substantially the same form as the article box 1 shown in FIG. 1 with the lid wall 15 removed. However, in this embodiment, an outer wall slit is not provided in the outer wall portion 431 of the double-walled second side wall 43 in which the outer wall portion 431 and the inner wall portion 432 are overlapped. Further, in this embodiment, the third side wall 44 facing the second side wall 43 is also a double wall in which the outer wall portion 441 and the inner wall portion 442 are stacked, similarly to the second side wall 43. In the same way that the locking portion 18 is provided on the inner wall portion 432 of the second side wall 43, the locking portion 18 is provided on the inner wall portion 442 of the third side wall 44. There are two locations at the boundary between the first side wall 12 and the bottom wall 11 where the flap 19 is provided, one for the locking portion 18 of the second side wall 43 and one for the locking portion 18 of the third side wall 44. A slit 123 is formed in. As shown in FIG. 9 as a single sheet 4a, the box body 4 is provided with corner connecting portions 16 and facing tongue pieces 17 at the four corners, similar to those in the first embodiment.

On the other hand, the box-shaped lid 5 shown in FIG. 10 and the single sheet 5a shown in FIG. 11 are the same as the box shown in FIG. 8 except that the flap 19 is not provided. It has the same structure as the main body 4 and the single sheet 4a shown in FIG. However, the lid 5 and the single sheet 5a are formed to be slightly larger than the box body 4 and the single sheet 4a because they are covered so as to fit the box body 4 inside.

In the article box of the third embodiment described above, both the box body 4 and the box-shaped lid 5 that constitute this have the same form as the article box 1 of the first embodiment described above. Needless to say, it is possible to suppress the thickness dimension, which affects shipping costs. Here, although illustrations are omitted, in the third embodiment described above, the box main body 4 and the box-shaped lid 5 are each made from one sheet 4a, 5a in the first embodiment shown in FIG. It is also possible to create a developed body similar to the developed body 1b and use it by appropriately transforming it into the box body 4 or the lid 5.

Note that the first to third embodiments described above merely show typical forms, and the article box is not limited to these embodiments. That is, those skilled in the art can implement various modifications based on conventionally known knowledge.

For example, in the first to third embodiments described above, as an example of the article box, article boxes 1 and 3, which are thin rectangular cardboard boxes often used as delivery boxes in mail-order sales, etc., and the box body are used. 4 and a box-shaped lid 5 are illustrated. However, the product box is not limited to this, and may be used for over-the-counter sales other than mail-order sales, as well as boxes used for purposes other than sales, and the form of use is not limited. Further, the shape is not limited to a thin rectangular shape, but may be formed into a thick rectangular block box shape, or a polygonal box other than a rectangular shape, or a box with a part of the side wall curved into an arc shape. etc. may be used. The specific shape can be appropriately set depending on the purpose of use and the like. Furthermore, the material of the box is not limited to corrugated paper, but can also include cardboard other than cardboard, thin plastic or metal plates that are bendable, and thick plastic or metal plates connected with hinges. It may be.

Furthermore, in the first to third embodiments described above, as an example of the article box, the article boxes 1 and 3 in which diagonal folds 136 are formed on the inner wall portions 132, 432, and 442 of the non-adhesive portion 13a, and the box main body. 4 and a box-shaped lid 5 are illustrated. However, the article box is not limited to these, and may be one in which such diagonal folds are not formed on the inner wall portion. However, as described above, by forming the diagonal folds 136 on the inner wall portions 132, 432, and 442, the locking portion 18 can be locked with good workability.

In addition, in the first to third embodiments described above, as an example of the facing tongue piece, the side portion 135a that extends from the side portion 135a that covers almost the entire range from the end of the inner wall end side 135 to the end of the diagonal fold line 136. A surface tongue piece 17 is illustrated. However, the facing tongue piece 17 is not limited to this, and may extend from a side portion that is longer than the range from the end of the inner wall end side 135 to the end of the diagonal fold line 136 on the inner wall end side 135 side. It may be configured as follows. However, as described above, by extending the surface-fitting tongue piece 17 from the side portion 135a that falls within the above range, the locking portion 18 can be locked with better workability. In addition, as long as it extends from the side portion falling within the above range, the surface-fitting tongue piece may extend from a part of the side portion 135a, which is substantially the entire range.

Further, in the first to third embodiments described above, as an example of the corner connecting portion, the outer wall portion 131 and the inner wall portion 132 are formed in a substantially rectangular shape, and the diagonal valley fold line 161 is provided so that the outer wall portion 131 and the inner wall portion 132 are folded. A corner connecting portion 16 sandwiched between the corners is illustrated. However, the corner connecting portion is not limited to this, and may have a triangular shape, a fan shape, etc., rather than a rectangular shape, as long as the second side wall can be raised in conjunction with the rising of the first side wall. Alternatively, the valley fold line may not be provided. However, by adopting a shape in which a diagonal valley fold line 161 is provided in the substantially rectangular corner connecting portion 16, the second side wall 13 can be effectively linked to the rising of the first side wall 12 to stand up. The points that can be performed are as described above. In the above-described embodiment, the starting point of the valley fold line 161 is the corner where the end of the first side 111 and the end of the second side 112 of the rectangular bottom wall 11 coincide. The form is illustrated. However, if the shape of the bottom wall is other than rectangular and the end of the first side and the end of the second side are separated, the corner connecting part is formed with one end as a corner. It is also possible to form a diagonal crease starting from the corner. Furthermore, the thickness of the folded paper may be reduced by cutting off some of the corners.

Further, in the first to third embodiments described above, as an example of the article box, the article box is composed of the article box 1 in which the locking part 18 is inserted into the slit 123, the box body 4, and the box-shaped lid 5, and , an article box 3 in which the locking portion 18 locks only by friction is illustrated. However, the article box is not limited to these, and the locking portion may take any form. However, as described above, by inserting and locking the locking portion 18 into the slit 123, the storage space A11 in the article box 1 can be firmly maintained.

Further, in the first to third embodiments described above, as examples of the article boxes, the article boxes 1 and 3 provided with the flap 19, and the article box consisting of the box body 4 and the box-shaped lid 5 are exemplified. There is. However, the article box is not limited to these, and may not be provided with the flaps as described above. However, as described above, by providing the flap 19, the article accommodated in the accommodation space A11 can be held down and stabilized by the flap 19.

Further, in the first to third embodiments described above, as an example of the article box, the article boxes 1 and 3 are provided with the third side wall 14 facing the second side wall 13, the box body 4, and the box-shaped lid. A product box consisting of 5 items is illustrated. However, the article box is not limited to these. For example, the article box is not particularly provided with a wall on the opposite side of the second side wall, and the article stored in the storage space surrounded by the bottom wall and three side walls is wrapped with a wrap sheet. etc. may be used. However, as described above, by providing the third side wall 14, the article storage space A11 can be firmly partitioned.

Furthermore, in the first and second embodiments described above, the article boxes 1 and 3 in which the third side wall 14 is provided with the lid wall 15 that can be opened and closed are illustrated as an example of the article box. However, the article box is not limited to these, and may be provided with a lid 5 separate from the box body 4, for example, as illustrated in the third embodiment. However, as described above, by providing the lid wall 15 on the third side wall 14, the number of parts can be reduced and the article box 1 can be made easier to handle.

Further, in the first and second embodiments described above, the article boxes 1 and 3 in which the lid wall 15 is provided with the lid side covering wall 21 and the lid side locking part 22 are illustrated as examples of the article boxes. However, the article box is not limited to these, and for example, the lid-side covering wall 21 is not provided, and the lid-side locking portion 22 is provided on the outer wall-side lid end side 151 of the lid wall 15, and the corresponding outer wall end side 133 is provided with the lid-side locking portion 22. It is also possible to provide a slit and lock it. Alternatively, for example, as illustrated in the third embodiment, a structure in which the lid 5 is simply placed over the box body 4 may be adopted. However, as described above, by locking the lid-side locking portion 22 to the second side wall 13, the closed posture of the lid wall 15 can be effectively maintained.

Furthermore, in the first and second embodiments described above, the article boxes 1 and 3 in which the lid-side locking portion 22 is inserted and locked into the outer wall slit 131a are illustrated as examples of the article boxes. However, the article box is not limited to these. For example, as illustrated in the third embodiment, the lid 5 may not be provided with any locking structure. However, as described above, if the lid-side locking portion 22 is inserted into and locked in the outer wall slit 131a, the closed posture of the lid wall 15 can be firmly maintained.

Furthermore, in the first and third embodiments described above, the article boxes 1 and 3 in which the flap locking portion 23 of the lid wall 15 is inserted and locked in the flap slit 191 are illustrated as an example of the article box. However, the article box is not limited to these. For example, as illustrated in the third embodiment, the flap 19 may not be provided with a locking structure. However, as described above, by inserting and locking the flap locking portion 23 into the flap slit 191, the closed posture of the lid wall 15 can be maintained even more firmly.

1, 3 Article box 1a, 4a, 5a Single sheet 1b Developed body 4 Box body 5 Lid 11 Bottom wall 12, 32 First side wall 13, 43 Second side wall 13a Non-adhesive portion 14, 44 Third side wall 15 Lid wall 16 Corner connection part 17 Surface tongue piece 18 Locking part 19 Flap 21 Lid side covering wall 22 Lid side locking part 23 Flap locking part 24 Inner tongue piece 111 First side 112 Second side 113 Third side 114 Lock release portion 121 First side edge 122 Side wall edge 123 Slit 131, 431, 441 Outer wall portion 131a Outer wall slit 131b Lock claw 132, 432, 442 Inner wall portion 133 Outer wall edge 134 Second side edge 135 Inner wall edge 135a Side Part 136 Diagonal fold 141 Third side wall edge 151 Outer wall side lid edge 152 Lid side 161 Valley fold line 162 Notch 191 Flap slit 211 Tip edge 221 Overhang 222 Lock hole D11 Extending direction D12 Crossing direction D13 Opening/closing direction D14 Deployment direction D15 Standing direction

Claims (5)

a bottom wall having a pair of first sides extending opposite to each other and a second side extending in a direction crossing the direction in which the pair of first sides extend;
a pair of first side walls folded up from each of the pair of first side sides;
It has an outer wall portion that is folded up from the second side, and an inner wall portion that is folded into a mountain fold so as to overlap the outer wall portion, with the outer wall edge along the second side being a mountain fold in the outer wall portion. , a double wall that partitions an article storage space together with the bottom wall and the pair of first side walls, the outer wall portion and the inner wall portion being bonded to each other with non-bonded portions remaining at both ends in the crossing direction; a second side wall;
A corner portion is formed that connects a first side edge located on the side of the second side wall in each of the pair of first side walls, and a second side edge located on the side of each of the pair of first side walls in the outer wall portion. , a pair of corner connecting portions that are provided to be sandwiched between the outer wall portion and the inner wall portion in each of the pair of non-bonded portions, and that cause the second side wall to rise in conjunction with the rise of the pair of first side walls;
A pair of tongue-like pieces extending in the shape of tongues from both ends of the inner wall end facing the bottom wall in the inner wall portion, each side portion being folded into a valley fold, and facing the bottom wall. A mengi tongue piece,
a pair of locking portions protruding from opposing edges facing each of the pair of first side walls in each of the pair of surface tongue pieces and locking to each of the pair of first side walls;
An article box characterized by comprising: The inner wall portion of each of the pair of non-bonded portions has a valley fold shape that diagonally moves away from the mountain fold and toward the inner wall edge as it moves away from each of the pair of first side walls in the intersecting direction. A diagonal crease is provided,
When the pair of locking portions are locked to the pair of first side walls, the inner wall portion in the non-adhesive portion is temporarily folded back into a valley fold at the diagonal crease, so that the pair of padded tongues The piece and the pair of locking portions may wrap around inside the pair of first side walls and lock onto the pair of first side walls from the inside while avoiding interference with the pair of first side walls. The article box according to claim 1, characterized in that: The pair of faceted tongue pieces has at least a part of the range extending from each end of the inner wall end side to the end of each of the pair of diagonal folds as the side portion, and extends from the side portion. The article box according to claim 2, characterized in that: Each of the pair of corner connecting parts has a shape in which at least one of an end on the second side wall side of each of the pair of first sides and each of both ends of the second side is a corner. and a valley fold line extending from the corner, and is formed so as to be sandwiched between the outer wall part and the inner wall part when folded in the valley fold along the valley fold line. The article box according to claim 1. A slit is formed in each of the pair of first side walls at a position closer to the bottom wall corresponding to each of the pair of locking parts,
The article box according to claim 1, wherein each of the pair of locking portions is locked to each of the pair of first side walls by being inserted into and locked to the pair of slits.

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