JP2022166956A - Sheet set for box - Google Patents

Abstract

To provide a sheet set for a box capable of stably raising up a content when opening a box body, and keeping an open state after opening.SOLUTION: In the present invention, a sheet for a box assembled into a box body and a pad arranged inside the box body are provided. The pad, in an arranged state inside the box body, has a pad body arranged in parallel to a bottom part of the box body, a pair of connection panels extended from a pair of first side edges of the pad body facing a pair of the first side face panels of the box body, and a pair of connection panels extended from the pair of the connection panels and fixed to a pair of lid inside flaps of the box body. A U-shaped supporting piece projected to the pad body side is defined in a region straddling to each of the pair of the connection panels and to the pad body, respectively. In the arranged state of a tip end of the supporting piece, the supporting piece is in parallel to the first side face panel, and the pad body vertically moves by opening/closing of the lid inside flaps.SELECTED DRAWING: Figure 3

Description

The present invention relates to a box sheet set.

2. Description of the Related Art A box body is known in which contents rise up when the lid is opened as a way of making it easier to take out the contents packed in the box and as a presentation when opening the gift product packed in the box. The applicant of the present invention has devised a box sheet set that can stably lift up the contents when opening such a box (see Utility Model Registration No. 3231134).

In this box sheet set, a pad is arranged inside a box formed by assembling box sheets, and a pad main body is arranged parallel to the bottom of the box. In the box sheet set, the pad is connected to a pair of inner lid flaps by a connecting member, and the pad moves up and down according to opening and closing of the inner lid flaps.

Utility Model Registration No. 3231134

In the box formed by assembling the box sheet set described above, the contents can be stably lifted up when the box is opened. descends, and the flap inside the lid closes in conjunction with it.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a box sheet set that can stably lift up the contents when the box is opened and that can maintain the opened state after opening. and

A box sheet set according to an aspect of the present invention includes box sheets that can be assembled into a box body and pads arranged inside the box body, and the box sheets are alternately connected in the left-right direction. A pair of first side panels and a pair of second side panels assembled into a rectangular tubular shape, a pair of lid inner flaps extending from the upper edges of the pair of first side panels, and the pair of second side surfaces. It has a pair of lid outer flaps extending from the upper edge of the panel, and one or more bottom flaps forming a bottom, and the pad is disposed inside the box, and the bottom and the bottom flaps. A pad body arranged in parallel, a pair of connection panels extending from a pair of first side edges facing the pair of first side panels of the pad body, and opposite sides of the pad body from the pair of connection panels. and a pair of connection panels fixed to the pair of lid inner flaps, and a U-shaped portion projecting toward the pad body in a region straddling the pair of connection panels and the pad body. A pair of easy-to-bend lines extending in the width direction of the connecting panel connecting the both end portions of the supporting pieces and the side edges of the connecting panel to the connecting panel are formed in a straight line. In the arrangement state, the tip edge of the support piece is parallel to the first side panel, and the pad body moves up and down by opening and closing the lid inner flap.

The box sheet set of the present invention can stably lift up the contents when the box body is opened, and can maintain the opened state after opening.

FIG. 1 is a schematic plan view showing a box sheet in a box sheet set according to an embodiment of the present invention. FIG. 2 is a schematic plan view showing a pad of the box sheet set according to one embodiment of the present invention. FIG. 3 is a schematic perspective view showing an arrangement state during assembly of the box sheet set of FIGS. 1 and 2. FIG. 4 is a schematic partial enlarged view showing the vicinity of the first connecting piece and the second connecting piece in FIG. 3. FIG. FIG. 5 is a schematic cross-sectional view showing the case of FIG. 3 at the time of packing. FIG. 6 is a schematic cross-sectional view showing when the box of FIG. 3 is opened. FIG. 7 is a schematic perspective view showing the box of FIG. 3 after opening.

[Description of the embodiment of the present invention]
First, embodiments of the present invention will be listed and described.

A box sheet set according to an aspect of the present invention includes box sheets that can be assembled into a box body and pads arranged inside the box body, and the box sheets are alternately connected in the left-right direction. A pair of first side panels and a pair of second side panels assembled into a rectangular tubular shape, a pair of lid inner flaps extending from the upper edges of the pair of first side panels, and the pair of second side surfaces. It has a pair of lid outer flaps extending from the upper edge of the panel, and one or more bottom flaps forming a bottom, and the pad is disposed inside the box, and the bottom and the bottom flaps. A pad body arranged in parallel, a pair of connection panels extending from a pair of first side edges facing the pair of first side panels of the pad body, and opposite sides of the pad body from the pair of connection panels. and a pair of connection panels fixed to the pair of lid inner flaps, and a U-shaped portion projecting toward the pad body in a region straddling the pair of connection panels and the pad body. A pair of easy-to-bend lines extending in the width direction of the connecting panel connecting the both end portions of the supporting pieces and the side edges of the connecting panel to the connecting panel are formed in a straight line. In the arrangement state, the tip edge of the support piece is parallel to the first side panel, and the pad body moves up and down by opening and closing the lid inner flap.

A box formed by assembling the box sheet set has a pad arranged therein, and a pad main body is arranged parallel to the bottom of the box. Since the pad main body is fixed to the inner lid flap of the box via the connecting panel and the connecting panel, the pad main body moves up and down according to the opening and closing of the inner lid flap. Therefore, the box formed by assembling the box sheet set can stably lift any contents placed on the pad body when the box is unsealed. Further, in the box sheet set, a U-shaped support piece protruding toward the pad body is defined in a region straddling the pair of connection panels and the pad body. After the box is unsealed, the support piece can abut on the side surface of the contents with an inclination with the side surface side upward. Therefore, after the box is unsealed, the support piece serves as a stopper to prevent the inner lid flap from closing. Therefore, the box formed by assembling the box sheet set can maintain the unsealed state after being unsealed.

It is preferable that the pad main body has a square shape, and in the arrangement state, a pair of second side edges facing the pair of second side panels abut against the pair of second side panels. By bringing the pad main body into contact with the pair of second side panels in this manner, the pad main body can be stably raised and lowered.

It is preferable that the pair of easy bending lines is positioned at the central portion of the connecting panel in the extending direction. At the time of opening, the tip of the support piece is located below the contents, and after the package is opened to a position where the connection panel is horizontal, the connection panel is bent along the pair of easy bending lines, The end portion of the support piece slides on the side surface of the content, rises, and abuts on the side surface of the content with an inclination with the side surface facing upward. By locating the pair of easy bending lines at the central portion of the connecting panel in the extending direction, the support pieces can be smoothly moved.

The pair of in-lid flaps has a cut line extending from the center of the tip edge to the base end, and a tip edge of the in-lid flap from the base end of the cut line in an oblique direction to the cut line. The pair of connecting panels has a first connecting piece defined by an easy bending line extending from the center of the distal edge to the proximal end, and parallel to the easy bending line and extending to the base end side. It is defined by a first cut line that is spaced apart and extends from the central portion of the distal edge to the proximal side, and a second cut line that connects the base ends of the easy bending line and the first cut line. and fixing the pair of connection panels to the pair of lid inner flaps by engaging the first connection piece and the second connection piece. By configuring the first connection piece and the second connection piece in this way, the pair of connection panels can be easily and reliably fixed to the pair of inner lid flaps.

The ratio of the length of the tip edge of the support piece to the width of the pad body is preferably 0.35 or more and 0.55 or less. By setting the above ratio within the above range, it is possible to relax the weight limit of the contents that can maintain the unsealed state after unsealing while ensuring smooth movement of the support piece.

In the present invention, the “left and right direction” means the horizontal direction in the assumed general usage of the box formed by assembling the box sheets, and the “upper” and “lower” are assumed. However, it is not intended to limit the orientation of the box during use. "Inside" and "outside" refer to the inside and outside of the box, respectively.

[Details of the embodiment of the present invention]
BEST MODE FOR CARRYING OUT THE INVENTION A box sheet set according to an embodiment of the present invention will be described below with appropriate reference to the drawings.

The box sheet set shown in FIGS. 1 and 2 includes a box sheet 1 (FIG. 1) and a pad 2 (FIG. 2). The box sheet 1 can be assembled into a box 3, as shown in FIG. 3, and the pad 2 is arranged inside the box 3.

<Box sheet>
The box sheet 1 can be formed from one sheet material. As a sheet material for forming the box sheet 1, for example, a corrugated cardboard sheet, a plastic board, a cardboard, or the like can be used, and among them, a corrugated cardboard sheet is preferably used. Although the case where the box sheet 1 is made of a corrugated cardboard sheet will be described below as an example, it is not intended that the sheet material is limited to the corrugated cardboard sheet.

The corrugated cardboard sheet may be a so-called double flute in which a core is sandwiched between three liners instead of one in which both sides of a core are sandwiched between a pair of liners. A so-called single-faced corrugated board having a liner attached only to one side of the core may be used.

From the viewpoint of strength, the lower limit of the thickness of the sheet material is preferably 3 mm. On the other hand, although the upper limit of the thickness of the sheet material is not particularly limited, 8 mm is preferable from the viewpoint of easiness of assembly to the box 3 .

The box sheet 1 is composed of a pair of first side panels 11 and a pair of second side panels 12, which are alternately connected in the left-right direction (the x direction in FIG. 1) and assembled into a rectangular tubular shape, and a pair of first side panels. 11, a pair of inner lid flaps 13 extending from the upper edges of the pair of second side panels 12, a pair of outer lid flaps 14 extending from the upper edges of the second side panels 12, and a plurality of (4 bottom flaps (a pair of bottom inner flaps 15 extending from the lower edges of the pair of first side panels 11 and a pair of bottom outer flaps 16 extending from the lower edges of the pair of second side panels 12) and , and a margin portion 17 .

(First side panel and second side panel)
The first side panel 11 and the second side panel 12 are substantially rectangular. Also, the pair of first side panels 11 have the same size, and the pair of second side panels 12 have the same size.

The vertical length of the first side panel 11 (the length in the y direction in FIG. 1) is equal to the vertical length of the second side panel 12 . Moreover, the length in the left-right direction of the first side panel 11 (the length in the x direction in FIG. 1) is equal to or less than the length in the left-right direction of the second side panel 12 .

The vertical length of the first side panel 11 and the second side panel 12, the horizontal length of the first side panel 11, and the horizontal length of the second side panel 12 are assembled by the box sheet 1. It is appropriately determined so as to correspond to the size and number of the contents X expected to be accommodated in the box 3 .

(Lid inner flap and lid outer flap)
The pair of inner lid flaps 13 and the pair of outer lid flaps 14 are substantially rectangular and configured to be able to close the upper opening of the box 3 formed by assembling the box sheet 1 . That is, the pair of inner lid flaps 13 and the pair of outer lid flaps 14 are bent inward at right angles to the extending first side panel 11 and the second side panel 12, respectively, during assembly, so that the inner lid flaps 13 are The cover 31 (see FIG. 5) of the box 3 can be formed by being superimposed so as to be on the inside.

The pair of lid outer flaps 14 are configured such that their tip edges can be butted against each other. The length of each lid outer flap 14 in the extending direction (the length in the y direction in FIG. 1) is, for example, half the length of the first side panel 11 in the left-right direction.

On the other hand, the length of the inner lid flap 13 in the extending direction is not particularly limited, but can be made equal to the length of the outer lid flap 14 .

The lengths of the inner lid flap 13 and the outer lid flap 14 in the left-right direction (length in the x direction in FIG. 1) are not particularly limited, but the lengths in the left-right direction of the first side panel 11 and the second side panel 12 extending respectively is preferably equal to the length of

The pair of inner lid flaps 13 has a cut line 13x extending from the central portion of the leading end edge toward the base end, and a base end portion of the cut line 13x (the inner lid flap 13 and the second cut line) in an oblique direction with respect to the cut line 13x. 1 end on the boundary side with the side panel 11) to the leading end edge of the lid inner flap 13, and a first connecting piece 13a defined by an easy bending line 13y. The pair of connection panels 23 can be fixed to the pair of inner lid flaps 13 by engaging the first connection piece 13a with a second connection piece 23a, which will be described later.

The width of the first connecting piece 13a on the leading edge side of the inner lid flap 13 (the distance between the cut line 13x and the easy folding line 13y at the leading edge of the inner lid flap 13) is preferably 25 mm or more and 35 mm or less. Moreover, the length of the cut line 13x is preferably 25 mm or more and 35 mm or less. If each dimension of the first connection piece 13a is less than the above lower limit, it becomes difficult to engage the first connection piece 13a and the second connection piece 23a, making it difficult to fix the connection panel 23 to the lid inner flap 13. may become On the other hand, when each of the above dimensions exceeds the above upper limit, the first connection piece 13a becomes more likely to move, and the first connection piece 13a and the second connection piece 23a become more likely to come off. It may be difficult to fix to the

(bottom inner flap and bottom outer flap)
The pair of bottom inner flaps 15 and the pair of bottom outer flaps 16 are substantially rectangular and configured to close the lower opening of the box 3 . That is, the pair of bottom inner flaps 15 and the pair of bottom outer flaps 16 are folded inward at right angles to the extending first side panel 11 and the second side panel 12, respectively, during assembly, so that the bottom inner flaps 15 are They can be overlapped inward to form the bottom 32 of the box 3 .

The pair of inner bottom flaps 15 and the pair of outer bottom flaps 16 are composed of the pair of inner lid flaps 13 and the pair of Since it can be configured in the same manner as the lid outer flap 14, detailed description thereof will be omitted.

(margin)
The margin 17 is provided at one side end of a belt-shaped body composed of a pair of first side panels 11 and a pair of second side panels 12 alternately connected in the left-right direction. In the box sheet 1 of FIG. 1 , the paste margin portion 17 is provided on the second side panel 12 . The paste margin portion 17 is configured to be able to abut on the other side end of the strip. The pair of first side panels 11 and the pair of second side panels 12 can be made endless by adhering this contact portion to the other side end of the strip. Alternatively, the bonding may be replaced by wire bonding or the like.

Although the margin 17 can be rectangular, it is preferably trapezoidal. Specifically, it is preferable that the margin 17 has an isosceles trapezoidal shape in which a pair of side edges of the margin 17 incline inward as the distance from the belt-like body increases. By forming the paste margin portion 17 into an isosceles trapezoidal shape in this way, when the box sheet 1 is assembled into the box body 3, the adhesion strength near the side edge of the paste margin portion 17 can be maintained and the paste can be applied. It is possible to prevent the side edge of the allowance portion 17 from interfering with the inner lid flap 13 and the inner bottom flap 15 .

<Pad>
The pad 2 can be formed from one sheet of material. The pad 2 may be formed from the same sheet material as the box sheet 1, or may be formed from a different sheet material. When forming from a sheet material different from the box sheet 1, the same sheet material as that forming the box sheet 1 can be used as the sheet material.

The pad 2, as shown in FIG. It has a connection panel 23 extending from the connection panel 22 to the side opposite to the pad body 21 . Further, the pad 2 has U-shaped support pieces 24 protruding toward the pad main body 21 in regions spanning the pair of connection panels 22 and the pad main body 21 .

(Pad body)
The pad main body 21 has a rectangular shape. Note that the “square shape” is not limited to a perfect square shape, and includes a shape with partial unevenness and a shape with a notch.

The pad main body 21 is arranged parallel to the bottom portion 32 of the box 3 when arranged inside the box 3 , and moves up and down by opening and closing the inner lid flap 13 .

It is preferable that the pair of second side edges 21 y of the pad body 21 facing the pair of second side panels 12 of the box 3 abut against the pair of second side panels 12 in the arrangement state described above. That is, the width of the pad body 21 (the length in the y direction in FIG. 2) is preferably equal to the width of the first side panel 11 . By bringing the pad main body 21 into contact with the pair of second side panels 12 in this manner, the pad main body 21 can be stably raised and lowered.

The length of the pad body 21 (the length in the x direction in FIG. 2) is preferably equal to or slightly longer than the length of the contents X. If the length of the pad body 21 is made equal to the length of the contents X, the contents X are easily fixed during packing. In addition, it is easy to maintain the unsealed state by the support piece 24 after unsealing.

(Connecting panel)
The connection panel 22 is a panel that connects the pad main body 21 and a connection panel 23, which will be described later, and has a rectangular shape. The boundary between the connection panel 22 and the pad body 21 and the connection panel 23 is linear and formed by easy bending lines.

The width of the connection panel 22 (the length in the y direction in FIG. 2) can be narrower than the width of the pad main body 21, but it is preferably the same width as the pad main body 21. By setting the width of the connection panel 22 to be the same as the width of the pad body 21, the width of the support piece 24, which will be described later, can be increased while maintaining the connection strength between the connection panel 22 and the pad body 21.

The length of the connecting panel 22 (the length in the x direction in FIG. 2) is at least longer than the height of the contents X and shorter than the vertical lengths of the first side panel 11 and the second side panel 12 . The length of the pad main body 21 plus the length of the two connecting panels 22, that is, the distance between the boundary between the connecting panel 22 and the connecting panel 23 is the length of the second side panel 12 in the left-right direction. longer than With such a dimension, the contents X can be reliably accommodated inside the box 3 when the inner lid flap 13 is closed.

The connection panel 22 is provided with a pair of easy bending lines 22x extending in the width direction of the connection panel 22 and connecting both end portions of the support piece 24 and side edges of the connection panel 22, which will be described later. It is preferable that the pair of easy bending lines 22x be positioned at the central portion of the connecting panel 22 in the extending direction. At the beginning of opening, the tip of the support piece 24 is below the contents X, and after the connection panel 22 is opened to a horizontal position, the connection panel 22 is bent along the pair of easy bending lines 22x. , the end of the support piece 24 slides on the side surface of the content X, rises, and abuts on the side surface of the content X with an inclination with the side surface side upward. By locating the pair of easy bending lines 22x at the central portion of the connecting panel 22 in the extending direction, the support piece 24 can be smoothly moved.

(connection panel)
A pair of connection panels 23 are fixed to a pair of lid inner flaps 13 of the box 3 .

The width of the connection panel 23 (the length in the y direction in FIG. 2) can be narrower than the width of the pad main body 21, but it is preferably the same width as the pad main body 21. By setting the width of the connection panel 23 to be the same as the width of the pad body 21, it is easy to secure the connection strength between the connection panel 23 and the connection panel 22. FIG.

The length of the connection panel 23 (the length in the x direction in FIG. 2) is such that when the lid inner flap 13 of the box 3 is closed, the boundary line between the connection panel 23 and the connection panel 22 is aligned with the pad main body 21 and the connection panel. 22 should be positioned immediately above the boundary line.

In the box sheet set shown in FIGS. 1 and 2, the connecting panel 23 is fixed to the inner lid flap 13 so that the tip of the connecting panel 23 and the tip of the inner lid flap 13 are aligned. In this case, the total length of the widths of the two connecting panels 23, the two connecting panels 22 and the pad body 21, that is, the total length of the pad 2 is the length of the inner lid flap 13 in the extending direction. The connection panel 23 is determined to have a length equal to or slightly longer than the total length of twice the height and the length of the second side panel 12 in the left-right direction. With such a length, when the pair of inner lid flaps 13 become horizontal (until they become parallel to the bottom part 32), the content X can be protruded from the box body 3 and lifted up.

The pair of connecting panels 23 includes a bending easy line 23x extending from the central portion of the distal edge to the proximal side, and a first cutting edge extending from the central portion of the distal edge toward the proximal side in parallel with and spaced apart from the easy bending line 23x. A second cut line 23z that connects the easy bending line 23x and the base ends of the first cut line 23y (ends on the boundary side between the connection panel 23 and the connecting surface panel 22). It has a second connecting piece 23a defined.

The easy bending line 23x of the second connection piece 23a is provided at a position corresponding to the cut line 13x of the first connection piece 13a provided on the inner lid flap 13 and has the same length. The distance between the easy bending line 23x of the second connecting piece 23a and the first cut line 23y is made equal to the width of the first connecting piece 13a on the leading edge side of the inner lid flap 13. As shown in FIG. The length of the first cut line 23y is longer than that of the easy bending line 23x, and the difference between the lengths is, for example, 10 mm or more and 20 mm or less. The second cut line 23z may linearly connect the base ends of the easy bending line 23x and the first cut line 23y, but may be chamfered as shown in FIG. preferable. By setting the dimensions of the easy bending line 23x, the first cut line 23y, and the second cut line 23z in this manner, the first connection piece 13a and the second connection piece 23a can be easily engaged. , once engaged, the first connection piece 13a and the second connection piece 23a can be made difficult to come off.

The first connection piece 13a of the lid inner flap 13 and the second connection piece 23a of the connection panel 23 can be engaged as shown in FIG. In other words, the second connection piece 23 a of the connection panel 23 is engaged below the inner lid flap 13 from the cut line 13 x of the first connection piece 13 a of the inner lid flap 13 . This engagement allows the pair of connecting panels 23 to be fixed to the pair of inner lid flaps 13 . At this time, the bending ease line 23x of the second connection piece 23a has the same length as the cut line 13x of the first connection piece 13a, and the length of the first cut line 23y of the second connection piece 23a is equal to the length of the cut line 23y of the second connection piece 23a. Since it is longer than the easy bending line 23x, the tip side of the second connecting piece 23a (the side opposite to the easy bending line 23x) reaches the back side of the lid inner flap 13 (the area without the first connecting piece 13a), This prevents the connecting piece 23a from pushing away the first connecting piece 13a and coming off upward. Therefore, by configuring the first connection piece 13a and the second connection piece 23a in this manner, the pair of connection panels 23 can be easily and reliably fixed to the pair of inner lid flaps 13 in the box sheet set. can.

(support piece)
The support piece 24 is rectangular. As shown in FIG. 2, the support pieces 24 are composed of a pair of first cut lines 24x extending toward the pad main body 21 side from the ends of the pair of easy bending lines 22x of the connecting panel 22 on the central portion side, and a pair of first cut lines 24x. and a second cut line 24y connecting the ends of the first cut line 24x on the pad body 21 side.

The tip edge of the support piece 24, that is, the second cut line 24y, is parallel to the first side panel 11 in the above arrangement state.

The lower limit of the ratio of the length of the tip edge of the support piece 24 to the width of the pad body 21 is preferably 0.35, more preferably 0.40. On the other hand, the upper limit of the above ratio is preferably 0.55, more preferably 0.50. If the above ratio is less than the above lower limit, there is a risk that the weight limit of the contents X that can maintain the opened state after opening is lowered. Conversely, if the above ratio exceeds the above upper limit, the length of the boundary line connecting the connection panel 22 and the pad body 21 is relatively reduced, and the connection strength between the connection panel 22 and the pad body 21 may decrease. There is

The distance between the tip edges of the pair of support pieces 24 is set shorter than the length of the contents X. Specifically, the projection distance (the length of the first cut line 24x) of the support pieces 24 is set so that the distance between the tip edges of the pair of support pieces 24 is shorter than the length of the content X. . By setting the projection distance in this manner, the support piece 24 can abut on the side surface of the content X with an inclination with the side surface side of the content X upward.

On the other hand, if the distance between the tip edges of the pair of support pieces 24 is too short than the length of the contents X, the tip of the support pieces 24 located below the contents X at the beginning of opening the connection panel 22 will be horizontal. It becomes difficult to slide the end of the support piece 24 on the side surface of the content X and move it up after the package is opened to the position where the contents X are unsealed. In this respect, the upper limit of the difference between the distance between the tip edges of the pair of support pieces 24 and the length of the content X is preferably 30 mm, more preferably 20 mm.

<Function of box>
When the lid inner flap 13 of the box body 3 formed by assembling the box sheet set is opened and closed, the pad body 21 moves up and down. Moreover, the box 3 can maintain the unsealed state after unsealing. The function will be described with reference to FIGS. 5 to 7. FIG.

FIG. 5 shows a state in which the lid inner flap 13 is completely closed. At this time, the inner lid flap 13 constitutes a part of the lid portion 31 of the box 3 , so that the connection panel 23 of the pad 2 is fixed to the lid portion 31 . Due to the weight of the pad body 21 itself and the weight of the contents X placed on the pad body 21 , the connection panel 22 is vertically suspended, and the pad body 21 is stored at a position near the bottom 32 of the box 3 . As a result, the contents X are accommodated inside the box 3 .

FIG. 6 shows a state in which the inner lid flap 13 is being opened. At this time, the inner lid flap 13 rotates around the base end, and the connection panel 23 fixed to the inner lid flap 13 rotates similarly. Then, the hanging connection panel 22 hangs the pad main body 21 obliquely from above as the connection panel 23 rotates, so that the pad main body 21 rises. At this stage, the tip edge of the support piece 24 is positioned below the contents X.

FIG. 7 shows a state in which the lid inner flap 13 is kept open after being opened. When the lid inner flap 13 is opened horizontally, the pad main body 21, the connecting panel 22 and the connecting panel 23 are all arranged on the same plane at the height of the lid portion 31 of the box body 3. - 特許庁At this time, the tip edge of the support piece 24 abuts on the lower surface of the content X. As shown in FIG. Further, when the lid inner flap 13 is opened so that its tip faces downward, the tip of the support 24 faces upward and tries to push up the contents X. - 特許庁At this time, the pair of bending easy lines 22x extending in the width direction of the connecting panel 22 are bent due to the balance of the weight of the contents X and the positional relationship of each panel of the pad 2, and the connecting panel 22 is bent. Then, the tip of the support 24 is pulled out to the side surface of the contents X. After that, the end of the support piece 24 slides on the side surface of the content X, rises, and abuts on the side surface of the content X with an inclination with the side surface side upward. In this state, when the opening of the inner lid flap 13 is stopped and the hand is released, the weight of the contents X and the pad body 21 causes the connection panel 22 to rotate in the opposite direction to when it was opened, and the inner lid flap 13 is closed. The power to try works. However, since the support piece 24 is in contact with the side surface of the content X with an inclination with the side surface side of the content X upward, the support piece 24 prevents the connection panel 22 from rotating in the opposite direction. The unsealed state is maintained in the state shown in .

<Advantages>
A box 3 obtained by assembling the box sheet set has the pad 2 arranged therein, and the pad main body 21 is arranged parallel to the bottom 32 of the box 3 . Since the pad main body 21 is fixed to the lid inner flap 13 of the box 3 via the connection panel 22 and the connection panel 23 , the pad main body 21 moves up and down according to the opening and closing of the lid inner flap 13 . Therefore, the box body 3 obtained by assembling the box sheet set can stably lift any content X placed on the pad body 21 when the box body 3 is opened. Further, in the box sheet set, a U-shaped support piece 24 protruding toward the pad body 21 is defined in a region straddling the pair of connecting panels 22 and the pad body 21 . After the box 3 is opened, the support piece 24 can abut against the side surface of the contents X with an inclination with the side surface facing upward. Therefore, after the box 3 is opened, the support piece 24 serves as a stopper to prevent the inner lid flap 13 from closing. Therefore, the box body 3 formed by assembling the box sheet set can maintain the unsealed state after being unsealed.

[Other embodiments]
The above embodiments do not limit the configuration of the present invention. Therefore, in the above embodiment, the components of each part of the above embodiment can be omitted, replaced, or added based on the description of the present specification and common general technical knowledge, and all of them are interpreted as belonging to the scope of the present invention. should.

In the above embodiment, four bottom flaps form the bottom of the box sheet, but the number of bottom flaps is not limited as long as the bottom can be formed, and the specific configuration is also limited. is not. For example, the bottom may be formed by a single bottom flap extending from the lower edge of one of the second side panels.

In the above embodiment, the connection panel is fixed to the inner lid flap using the first connection piece provided on the inner lid flap and the second connection piece provided on the connection panel. The method of fixing to the flap is not limited to this, and other methods such as fixing with double-sided tape may be used.

In the above embodiment, the case where the pad main body has a rectangular shape has been described, but the shape of the pad main body is not limited to a rectangular shape, and may be other shapes such as an elliptical shape.

In the above embodiment, the case where the supporting piece has a square shape has been described, but the shape of the supporting piece is not limited to a square, and may be another shape such as an isosceles trapezoid with a long base on the base end side. .

As described above, the box sheet set of the present invention can stably lift up the contents when the box body is opened, and can maintain the opened state after opening.

1 Box sheet 11 First side panel 12 Second side panel 13 Inner lid flap 13a First connection piece 13x Cut line 13y Easy folding line 14 Outer lid flap 15 Inner bottom flap 16 Outer bottom flap 17 Paste margin 2 Pad 21 Pad body 21x First side edge 21y Second side edge 22 Connection panel 22x Easy bending line 23 Connection panel 23a Second connection piece 23x Easy bending line 23y First cut line 23z Second cut line 24 Support piece 24x First cut line 24y Second cut line 3 Box 31 Lid 32 Bottom X Contents

Claims (5)

A box sheet that can be assembled into a box,
and a pad arranged inside the box,
The above box sheet
a pair of first side panels and a pair of second side panels that are alternately connected in the left-right direction and assembled in a square tubular shape;
a pair of in-lid flaps extending from the upper edges of the pair of first side panels;
a pair of outer lid flaps extending from the upper edges of the pair of second side panels;
one or more bottom flaps forming a bottom;
In an arrangement state in which the pad is arranged inside the box,
a pad body arranged parallel to the bottom;
a pair of connecting panels extending from a pair of first side edges facing the pair of first side panels of the pad body;
a pair of connection panels extending from the pair of connection panels to the side opposite to the pad body and fixed to the pair of lid inner flaps,
U-shaped support pieces protruding toward the pad main body are defined in regions straddling the pair of connection panels and the pad main body, respectively,
The connection panel is provided with a pair of easy bending lines extending in the width direction of the connection panel connecting both end portions of the support pieces and side edges of the connection panel and extending in a straight line,
In the arranged state, the tip edge of the support piece is parallel to the first side panel,
A box sheet set in which the pad body moves up and down by opening and closing the flap inside the lid. The pad body has a square shape,
2. The box sheet set according to claim 1, wherein in the arranged state, the pair of second side edges facing the pair of second side panels abut against the pair of second side panels. 3. The box sheet set according to claim 1 or 2, wherein the pair of easy bending lines are positioned at the central portion of the connecting panel in the extending direction. The pair of lid inner flaps
a cut line extending from the central portion of the distal edge to the proximal side;
and a first connecting piece defined by an easy-to-bend line extending obliquely to the cut line from the base end of the cut line to the tip edge of the inner lid flap,
The pair of connection panels above
an easy bending line extending from the central portion of the distal edge toward the proximal end;
a first cut line extending from the central portion of the distal edge to the proximal side in parallel with and spaced apart from the line of ease of bending;
A second connecting piece defined by the bending ease line and a second cut line that connects the base end portions of the first cut line,
4. The box sheet set according to claim 1, 2 or 3, wherein the pair of connecting panels are fixed to the pair of inner lid flaps by engaging the first connecting piece and the second connecting piece. . The box sheet set according to any one of claims 1 to 4, wherein a ratio of the length of the leading edge of the support piece to the width of the pad body is 0.35 or more and 0.55 or less.

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