Packing box

Abstract

To provide a packing box which can avoid breakage of a stored object and is excellent in resource saving.SOLUTION: A packing box 1A comprises an outer box 2 capable of storing one or more stored objects P and P, and a movement restricting part 5 for restricting the movement of the stored objects P and P in the direction along an opening face 24 of the outer box 2. The movement restricting part 5 has a holding piece 50 which is disposed on one peripheral wall side of the outer box 2 so as to freely erect and fall down, and holds the stored objects P and P in cooperation with at least one of other peripheral walls of the outer box 2, and an inhibition piece 52 for inhibiting the holding piece 50 from falling down to the one peripheral wall side from a posture of holding the stored objects P and P.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a packaging box, particularly a packaging box used for packaging contents that are easily damaged.

Background Art

[0002] As a packaging box used for box-packaging contents that are easily damaged, such as glass tablet bottles and vial bottles, in order to avoid the contents from toppling over and being damaged inside the packaging box, a packaging box is known that restricts the movement of the contents in the direction along the opening surface of the outer box (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above conventional packaging box, the movement of the contents is restricted by using a pair of opposing movement restricting members (inner face plates 4L and 4R in Patent Document 1). However, from the viewpoints of cost reduction and reduction of environmental load, while achieving the purpose of restricting the movement of the contents inside the packaging box to avoid damage to the contents, it is required to construct the packaging box with less material.

[0005] The present invention has been made to solve the above conventional problems, and an object thereof is to provide a packaging box that can avoid damage to the contents and is excellent in resource saving.

Means for Solving the Problems

[0006] To achieve the above objective, the packaging box described in this application comprises an outer box capable of accommodating one or more contents, and a movement restricting portion that restricts the movement of the contents in a direction along the opening surface of the outer box, wherein the movement restricting portion is provided so as to be able to rise and fall on one side of the outer box's circumferential wall and has a clamping piece that cooperates with at least one of the other circumferential walls of the outer box to clamp the contents, and a blocking piece that prevents the clamping piece from collapsing toward the circumferential wall from the position in which it is clamping the contents.

[0007] Furthermore, in the packaging box, it is assembled from a single blank sheet, and the blank sheet is provided with an outer box forming section that forms the outer box and a movement restricting section forming section that forms the movement restricting section, the outer box forming section is configured to include a first side panel, a second side panel, a third side panel and a fourth side panel which are connected horizontally via parallel vertical creases and form the peripheral wall of the outer box, and the movement restricting section forming section is connected to the side edge of the fourth side panel via vertical creases and is bonded to the inner surface of the first side panel The configuration may include: an adhesive plate; a support plate connected to the side edge of the first adhesive plate via a vertical crease to support the clamping piece; a second adhesive plate connected to the side edge of the support plate via a vertical crease to be bonded to the inner surface of the third side plate; a clamping piece plate connected to the upper or lower edge of the support plate via a horizontal crease to constitute the clamping piece; and a blocking piece plate having a bent base end on the support plate and provided across the crease between the support plate and the first adhesive plate or the second adhesive plate to constitute the blocking piece.

[0008] Furthermore, in the packaging box, the outer box has a lid that can close the opening, and the lid is connected to the upper edge of a first peripheral wall which is one of the peripheral walls of the outer box. The configuration includes a lap, a second flap connected to the upper edge of a second circumferential wall opposite the first circumferential wall, and a tab portion connected to the leading edge of the first flap, wherein the tab portion is folded back to the back side of the first flap and releasably fastened to the back side, and the second flap may be provided detachably from the second circumferential wall.

[0009] Furthermore, in the packaging box, the tab portion may be attached to the back side of the first flap and used to cushion the top of the contents.

[0010] Furthermore, in the packaging box, a bottom cushioning pillow may be provided on the bottom side of the outer box to cushion the bottom of the contents. [Effects of the Invention]

[0011] According to the present invention, a packaging box can be realized that avoids damage to the contents and is highly resource-efficient. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view of the packaging box in Embodiment 1. [Figure 2] This is a schematic side view of the inside of the packaging box in Embodiment 1, viewed from the left side. [Figure 3] This is a schematic top view of the inside of the packaging box in Embodiment 1, viewed from above. [Figure 4] This is a schematic front view of the inside of the packaging box in Embodiment 1, as seen from the front. [Figure 5] This is a front perspective view of the outer box in Embodiment 1. [Figure 6] Figure 5 is a rear perspective view of the outer box. [Figure 7] This is a schematic side view of the lid in the closed position, seen from the left side. [Figure 8] This is a partial front perspective view showing the lid of the packaging box after it has been opened. [Figure 9] This is an unfolded view of the blank sheet in Embodiment 1, seen from the reverse side. [Figure 10] This is a plan view showing the assembly process (1) of a packaging box using a blank sheet in Embodiment 1. [Figure 11] This is a plan view showing the assembly process (2) of a packaging box using a blank sheet in Embodiment 1. [Figure 12]It is a plan view showing the process (3) of assembling the packaging box with the blank sheet in Embodiment 1. [Figure 13] It is a plan view showing the process (4) of assembling the packaging box with the blank sheet in Embodiment 1. [Figure 14] It is a plan view showing the process (5) of assembling the packaging box with the blank sheet in Embodiment 1. [Figure 15] It is a schematic top view and a schematic side view showing the process (6) of assembling the packaging box with the blank sheet in Embodiment 1. [Figure 16] It is a perspective view of the packaging box in Embodiment 2. [Figure 17] It is a schematic top view of the inside of the packaging box in Embodiment 2 as viewed from above. [Figure 18] It is a schematic front view of the inside of the packaging box in Embodiment 2 as viewed from the front. [Figure 19] It is a developed view of the blank sheet in Embodiment 2 as viewed from the back.

Modes for Carrying Out the Invention

[0013] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the same reference numerals are assigned to the same components among the embodiments described below, and redundant descriptions of these components are omitted.

[0014] (Embodiment 1) FIG. 1 is a perspective view of the packaging box 1A in Embodiment 1. FIG. 2 is a schematic side view of the inside of the packaging box 1A as viewed from the left side. FIG. 3 is a schematic top view of the inside of the packaging box 1A as viewed from above and FIG. 4 is a schematic front view of the inside of the packaging box 1A as viewed from the front. In FIG. 1, the two-dot chain line indicates the outline of the outer box 2 including the opening surface 24.

[0015] In the following diagrams, the symbol X indicates the left-right direction of the assembled packaging box 1 (A,B), with the -X direction (negative X direction) being the left direction and the +X direction (positive X direction) being the right direction. The symbol Y indicates the front-back direction of the assembled packaging box 1 (A,B), with the -Y direction (negative Y direction) being the front direction and the +Y direction (positive Y direction) being the back direction. The symbol Z indicates the up-down direction of the assembled packaging box 1 (A,B), with the -Z direction (negative Z direction) being the down direction and the +Z direction (positive Z direction) being the up direction.

[0016] -Packaging Box Composition- First, the configuration of the packaging box 1A in Embodiment 1 will be described.

[0017] The packaging box 1A comprises an outer box 2 capable of accommodating two contents P, P, and a movement restricting section 5 that restricts the movement of the contents P, P in the direction along the opening surface 24 of the outer box 2 (see Figures 1 to 4). The contents P, P are, for example, fragile items such as glass tablet bottles or vials.

[0018] <Outer box> Figure 5 is a front perspective view of the outer box 2 in Embodiment 1. Figure 6 is a rear perspective view of the outer box 2.

[0019] The outer box 2 has a peripheral wall (right side 20, front 21, left side 22, back 23), a lid 3, and a bottom 4 (see Figures 2 to 6).

[0020] The upper edge (+Z direction edge) of the front surface 21 is provided with a wide U-shaped perforation 210 that is recessed towards the center of the front surface 21 (see Figure 5).

[0021] The upper end (+Z direction end) of the back surface 23 is provided with a pair of perforations 230 and 231 on the left and right sides to facilitate the removal of the contents P, P from the opening (removal opening) of the outer box 2, and a fold line 232 that crosses the back surface 23 to connect the perforations 230 and 231 to each other (see Figure 6).

[0022] The lid portion 3 is capable of closing the opening surface 24 of the outer box 2 and consists of a first flap 30 connected to the upper edge (+Z direction edge) of the back surface 23 (corresponding to the "first peripheral wall" described in the claim), a second flap 31 connected to the upper edge (+Z direction edge) of the front surface 21 (corresponding to the "second peripheral wall" described in the claim), a tab portion 32 connected to the leading edge of the first flap 30, and a pair of inner flaps 34, 35 connected to the upper edges (+Z direction edges) of the right side surface 20 and the left side surface 22 (see Figures 5 and 6).

[0023] In this embodiment, the tab portion 32 is folded back to the back side of the first flap 30 and is releasably fastened to the back side of the first flap 30. Specifically, the tab portion 32 is attached to an adhesive area 301 defined by perforations 300 on the back side of the first flap 30 (see Figure 6). When the perforations 300 are cut, the adhesive area 301 is separated from the first flap 30, thereby releasing the tab portion 32 from the first flap 30.

[0024] In this embodiment, the second flap 31 is provided to be detachable from the front surface 21 along the perforations 210 on the front surface 21 (see Figure 5). When separating the second flap 31 from the front surface 21, the inside of the U-shaped portion of the perforations 210 is pushed inward into the outer box 2. Cutting of the 210mm diameter can be easily initiated.

[0025] Figure 7 is a schematic side view of the lid 3 in the closed position, viewed from the left side. Figure 8 is a partial front perspective view of the lid 3 after the packaging box 1A has been opened. Note that in Figures 7 and 8, the opening surface 24 is omitted for illustrative purposes. Also, in Figure 8, the second flap 31 is omitted for illustrative purposes.

[0026] The lid portion 3 described above closes the opening surface 24 of the outer box 2 as follows when, for example, the contents P,P are filled. First, the inner flaps 34 and 35 are folded inward into the outer box 2. Next, the first flap 30 is placed over the outside of the inner flaps 34 and 35 with the tab portion 32 attached to its back surface. Subsequently, the second flap 31 is placed over the outside of the first flap 30 and adheres to the outer surface of the first flap 30. In this way, the lid portion 3 closes the opening surface 24 of the outer box 2 (see Figure 7). From this state, the packaging box 1A can be opened by releasing the adhesion between the second flap 31 and the first flap 30.

[0027] The tab portion 32 is fixed to the back surface of the first flap 30 and serves to cushion the top of the contents P,P (see Figure 7). That is, when the opening surface 24 of the outer box 2 is closed by the lid portion 3, the tab portion 32 is interposed between the contents P,P and the first flap 30, thereby mitigating the transmission of external forces on the second flap 31 to the contents P,P via the first flap 30. This protects the contents P,P from external forces from the lid portion 3 side.

[0028] In this embodiment, the lid portion 3 is configured to include the first flap 30, the second flap 31, and the tab portion 32 as described above. This allows the opening surface 24 of the outer box 2 to be closed again, for example, even after the packaging box 1A has been opened (see Figure 8). That is, when the adhesive area 301 is detached from the first flap 30 and the tab portion 32 is released from its attachment to the first flap 30, the tab portion 32 becomes available as an insert tab 33 for insertion into the front 21 side. Also, when the second flap 31 is separated from the front 21, the insert tab 33 becomes insertable into the front 21 side. Therefore, by folding the inner flaps 34 and 35 inward into the outer box 2, placing the first flap 30 over the outside of the inner flaps 34 and 35, and inserting the insert tab 33 into the front 21 side, the opening surface 24 of the outer box 2 can be closed again.

[0029] The bottom portion 4 forms the bottom surface of the outer box 2 and consists of outer flaps 42 and 43 connected to the lower edges (edges in the -Z direction) of the front 21 and back 23, respectively, and a pair of inner flaps 44 and 45 connected to the lower edges (edges in the -Z direction) of the right side 20 and left side 22 (see Figures 5 and 6). The bottom surface of the outer box 2 is formed when the inner flaps 44 and 45 are folded inward into the outer box 2, the outer flap 43 is placed over the outside of the inner flaps 44 and 45, and the outer flap 42 is attached to the outside of the outer flap 43.

[0030] In this embodiment, a rectangular bottom cushioning pillow 40 is provided on the bottom 4 side of the outer box 2 to cushion the bottom 4 of the contents P,P (see Figures 1, 2, and 4). The bottom cushioning pillow 40 is formed by attaching a roughly right-angled Z-shaped bottom cushioning pillow piece 41, which extends from the outer flap 43 of the bottom 4, to the inner surface of the back surface 23 of the outer box 2. The bottom cushioning pillow 40 can protect the contents P,P from external forces from the bottom 4 side.

[0031] <Mobility Control Department> The movement restricting section 5 includes a clamping piece 50, a clamping piece support section 51, and a blocking piece 52 (see Figures 1 to 4).

[0032] The clamping piece 50 works in cooperation with the back surface 23 of the outer box 2 to clamp the two contents P, P. The outer box 2 is provided on the front 21 side so as to be able to rise and fall (see Figures 2 and 3). Here, "clamping" refers to supporting the contents P,P so as to prevent them from falling over inside the packaging box 1A, and includes cases where the contents P,P are always in contact with the support, as well as cases where the contents P,P are not always in contact with the support but are supported when the contents P,P are shaken inside the packaging box 1A.

[0033] The clamping piece support portion 51 supports the clamping piece 50 and is provided to cross the internal space of the outer box 2 along the front surface 21 (see Figures 3 and 4). Right adhesive portions 53 and left adhesive portions 54 are provided at both ends of the clamping piece support portion 51, respectively, which are attached to the inner surfaces of the right side surface 20 and the left side surface 22.

[0034] The clamping piece 50 is connected to the lower end edge 55 of the clamping piece support portion 51 and is designed to undulate with the lower end edge 55 of the clamping piece support portion 51 as the base end for the undulation (see Figures 2 and 4).

[0035] The tip edge of the clamping piece 50 has two recessed edges R, R which conform to the shapes of the outer surfaces of the two contents P, P when the clamping piece 50 is raised (see Figures 3 and 4). When the clamping piece 50 is raised, two support spaces α, α are formed between the recessed edges R, R and the back surface 23 of the outer box 2 to support the contents P, P, respectively. The clamping piece 50 works in cooperation with the back surface 23 of the outer box 2 to clamp the contents P, P within the support spaces α, α. If the clamping piece 50 is to be raised further while the contents P, P are in the support spaces α, α, the recessed edges R, R come into contact with the outer surfaces of the contents P, P, thereby preventing the clamping piece 50 from moving further in the upright direction D1 (see Figures 2 to 4).

[0036] The preventing piece 52 prevents the clamping piece 50 from collapsing toward the front 21 side from the position in which it is clamping the contents P,P. The preventing piece 52 also helps to raise the clamping piece 50 relative to the clamping piece support 51 when assembling the packaging box 1A. In this embodiment, the preventing piece 52 extends from the inner surface of the clamping piece support 51 toward the inner surface of the left side 22 (see Figures 1, 3, and 4). Specifically, the preventing piece 52 is formed to project diagonally toward the inner surface of the left side 22 of the outer box 2, with its base end located at a predetermined distance δ from the left edge (-X direction edge) of the clamping piece support 51.

[0037] The blocking piece 52 is shaped to interfere with the clamping piece 50 from the front 21 side. If the clamping piece 50 attempts to bend towards the front 21 side from the position in which it is clamping the contents P,P, the blocking piece 52 interferes with the clamping piece 50, thereby preventing the clamping piece 50 from moving any further in the bending direction D2 (see Figure 2).

[0038] In summary, the clamping piece 50 holds the contents P,P within the support spaces α,α, and the blocking piece 52 maintains the position in which the clamping piece 50 holds the contents P,P, thereby keeping the contents P,P held within the support spaces α,α. In other words, the movement restricting section 5 restricts the movement of the contents P,P in the direction along the opening surface 24 of the outer box 2 by supporting the contents P,P within the support spaces α,α. This prevents the contents P,P from tipping over and being damaged inside the packaging box 1A.

[0039] Furthermore, in the above-mentioned movement restricting section 5, the clamping piece 50, which is provided to be flexibly raised on one side of the outer box 2 wall (the front 21 in this embodiment), cooperates with at least one of the other side walls of the outer box 2 (the back 23 in this embodiment) to clamp the contents P,P. As a result, the side wall of the outer box 2 (the back 23 in this embodiment) is effectively utilized to support the contents P,P. Therefore, compared to the case where a pair of opposing movement restricting members are provided as in the past to restrict the movement of the contents P,P, the movement of the contents P,P can be restricted with a more compact configuration. This makes it possible to avoid damage to the contents P,P, resulting in a packaging box 1 with excellent resource conservation. A will be realized.

[0040] In the above-described movement restricting section 5, the clamping piece 50, which is provided on the front 21 so as to be able to move up and down, cooperates with the back 23 to clamp two contents P, P. However, the configuration is not limited to this, and for example, the clamping piece 50, which is provided on the front 21 so as to be able to move up and down, cooperates with the right side 20 of the other peripheral walls of the outer box 2 to clamp one or more contents P. Alternatively, the clamping piece 50, which is provided on the front 21 so as to be able to move up and down, cooperates with the back 23 and the right side 20 of the other peripheral walls of the outer box 2 to clamp one or more contents P, P.

[0041] Furthermore, in the above-described movement restricting section 5, the clamping piece 50 is configured to rise and fall with the lower end edge 55 of the clamping piece support section 51 as the base for the rise and fall. However, the configuration is not limited to this, and the clamping piece 50 may be configured to rise and fall with the upper end edge of the clamping piece support section 51 as the base for the rise and fall.

[0042] Furthermore, although the clamping piece support portion 51 supports the clamping piece 50 in the movement restricting portion 5 described above, the configuration is not limited to this, and for example, the peripheral wall of the outer box 2 may support the clamping piece 50. Also, the form of the blocking piece 52 is not limited to the above, and for example, it may extend from the inner surface of the clamping piece support portion 51 toward the inner surface of the right side surface 20. In addition, the blocking piece 52 may be formed by recessing at least one of the clamping piece support portion 51, the right adhesive portion 53, and the left adhesive portion 54 toward the inside of the outer box 2.

[0043] Furthermore, the technical scope of the present invention also includes the inversion of the structure of the above-described movement restricting unit 5 in the left-right direction (X direction), the front-back direction (Y direction), or the front-back-left-right direction (X direction and Y direction).

[0044] -Blank Sheet Configuration- Next, we will describe a blank sheet 10A used to assemble the packaging box 1A in this embodiment.

[0045] Figure 9 is an unfolded view of the blank sheet 10A in Embodiment 1, as seen from the reverse side.

[0046] In the following diagrams, the symbol V indicates the vertical direction on the blank sheet 10(A,B), with the -V direction (minus V direction) being the downward direction of the sheet and the +V direction (plus V direction) being the upward direction of the sheet. The symbol H indicates the horizontal direction on the blank sheet 10(A,B) when viewed from the front, with the -H direction (minus H direction) being the left direction when viewed from the back of the sheet and the +H direction (plus H direction) being the right direction when viewed from the back of the sheet. In Figure 9, the dashed lines indicate mountain fold lines, the dashed lines indicate valley fold lines, and the shaded areas indicate glued areas.

[0047] The blank sheet 10A is provided with an outer box forming section 6 for forming the outer box 2 and a movement restricting section forming section 7 for forming the movement restricting section 5 (see Figure 9).

[0048] <Outer box forming section> The outer box forming section 6 is composed of a right side panel 60 (corresponding to the "first side panel" described in the claim), a front panel 61 (corresponding to the "second side panel" described in the claim), a left side panel 62 (corresponding to the "third side panel" described in the claim), and a back panel 63 (corresponding to the "fourth side panel" described in the claim) that form the peripheral wall of the outer box 2, a first flap 30, a second flap 31, a tab portion 32, and inner flaps 34, 35 that form the lid portion 3, outer flaps 42, 43, and inner flaps 44, 45 that form the bottom portion 4, and a bottom cushioning piece 41 that forms the bottom cushioning pillow 40 (see Figure 9).

[0049] The right side panel 60, front panel 61, left side panel 62, and back panel 63 are parallel to each other in the vertical direction (V They are connected horizontally (H direction) via fold lines F1, F2, and F3 along the direction of (H direction).

[0050] The first flap 30 is connected to the upper edge (+V direction edge) of the back panel 63 via a fold line F4 that runs horizontally (H direction).

[0051] The second flap 31 is connected to the upper edge (+V direction edge) of the front panel 61 via a fold line F5 that runs horizontally (H direction).

[0052] The tab portion 32 is connected to the upper edge (+V direction edge) of the first flap 30 via a fold line F6 that runs horizontally (H direction).

[0053] The inner flaps 34 and 35 are connected to the upper edges (+V direction edges) of the right side panel 60 and the left side panel 62, respectively, via fold lines F7 and F8 that run along the lateral direction (H direction).

[0054] The outer flaps 42 and 43 are connected to the lower edges (-V direction edges) of the front panel 61 and the rear panel 63, respectively, via fold lines F9 and F10 that run along the lateral direction (H direction). The lower edge (-V direction edge) of the outer flap 43 is formed in a concave shape that is recessed on the upper side (+Z direction side).

[0055] The inner flaps 44 and 45 are connected to the lower edges (-V direction edges) of the right side panel 60 and the left side panel 62 via fold lines F11 and F12 that run along the lateral direction (H direction), respectively.

[0056] The bottom cushioning pillow piece 41 is connected to the inner edge of the recess of the outer flap 43 via a fold line F13 that runs in the lateral direction (H direction). The bottom cushioning pillow piece 41 is provided with two fold lines F14 and F15 that run in the lateral direction (H direction), and the pillow piece adhesive portion 410 is provided on the lower side (-V direction side) of the fold line F15.

[0057] <Movement regulating part forming part> The movement restricting portion forming portion 7 is composed of a right adhesive plate 73 (corresponding to the "first adhesive plate" described in the claim) that constitutes the right adhesive portion 53 of the clamping piece support portion 51 in the movement restricting portion 5, a support plate 71 that constitutes the clamping piece support portion 51, a left adhesive plate 74 (corresponding to the "second adhesive plate" described in the claim) that constitutes the left adhesive portion 54 of the clamping piece support portion 51, a clamping piece plate 70 that constitutes the clamping piece 50, and a blocking piece plate 72 that constitutes the blocking piece 52 (see Figure 9).

[0058] The right adhesive plate 73 is connected to the right edge (+H direction side edge) of the back plate 63 via a vertical (V direction) folding line F16.

[0059] The support plate 71 is connected to the right edge (+H direction side edge) of the right adhesive plate 73 via a vertical (V direction) fold line F17. The lower edge (-V direction edge) of the support plate 71 is the lower edge 55 of the clamping piece support portion 51 when the packaging box 1A is assembled, that is, the base end of the undulation of the clamping piece 50. For this reason, the vertical (V direction) position of the lower edge (-V direction edge) of the support plate 71 on the blank sheet 10A is set so that the lower edge 55 of the clamping piece support portion 51 is at an appropriate height position inside the packaging box 1A when the packaging box 1A is assembled.

[0060] The left adhesive plate 74 is connected to the right edge (+H direction side edge) of the support plate 71 via a vertical (V direction) folding line F18.

[0061] The clamping plate 70 is connected to the lower edge (-V direction edge) of the support plate 71 via a fold line F19 that runs along the lateral direction (H direction). Two recessed edges R, R are formed on the lower edge (-V direction edge) of the clamping plate 70.

[0062] The blocking plate 72 is provided with a vertical (V-direction) fold line F20 on the support plate 71 as its base end, and straddles the fold line F18 between the support plate 71 and the left adhesive plate 74. The fold line F20 is provided at a predetermined distance δ to the left (-H direction) of the fold line F18. A U-shaped cut line C is provided, starting and ending at the upper and lower edges of the fold line F20, straddling the fold line F18 and opening towards the support plate 71. The blocking plate 72 is formed inside the cut line C. Inside the cut line C, a gap β is provided on the right side (+H direction side) of the blocking plate 72 to facilitate the tip of the blocking plate 72 sliding along the left side plate 62 (left side 22) when the blank sheet 10A is raised.

[0063] In the case where the blocking piece 52 in the packaging box 1A extends from the inner surface of the clamping piece support portion 51 toward the inner surface of the right side surface 20, the blocking piece plate 72 is provided in contrast to the above example, with the vertical (V-direction) fold line provided on the support plate 71 closer to the fold line F17 as the base for folding, and straddling the fold line F17 between the support plate 71 and the right adhesive plate 73.

[0064] - Packaging box assembly instructions - Next, we will explain the assembly procedure for packaging box 1A using the blank sheet 10A described above.

[0065] Figures 10 to 14 are plan views showing the assembly process (1) to (4) of the packaging box 1A using the blank sheet 10A in Embodiment 1, and Figure 15 is a schematic top view and schematic side view showing the assembly process (6) of the packaging box 1A using the blank sheet 10A. Figures 10 to 14 are views of the blank sheet 10A from the back side. In Figures 10 to 14, dashed lines indicate mountain fold lines, dashed lines indicate valley fold lines, and shading indicates glued areas. Note that in Figure 13, the left glued plate 74 is omitted from the illustration for illustrative purposes.

[0066] As shown in Figure 10, adhesive is applied to the adhesive area 301 on the back surface of the first flap 30. Also, adhesive is applied to the back surface of the adhesive portion 410 of the bottom cushion cushion piece 41.

[0067] As shown in Figure 11, the tab portion 32 is folded back towards the first flap 30 along the crease line F6, and the back surface of the tab portion 32 is glued to the back surface of the first flap 30. Also, the bottom cushioning pillow piece 41 is folded back towards the back plate 63 along the crease line F13, and the back surface of the pillow piece adhesive portion 410 is glued to the back surface of the back plate 63. Furthermore, the clamping plate 70 is folded back towards the support plate 71 along the crease line F19.

[0068] As shown in Figure 12, the movement restriction section forming section 7 is folded along the fold line F17. Also, glue is applied to the surface of the left adhesive plate 74. As shown in Figure 13, the outer box forming section 6 is folded along the fold line F3, and the surface of the left adhesive plate 74 is attached to the back surface of the left side panel 62. Also, adhesive is applied to the surface of the right adhesive plate 73.

[0069] As shown in Figure 14, the right side panel 60 is folded back along the fold line F1, and the surface of the right adhesive panel 73 is attached to the back surface of the right side panel 60.

[0070] The blank sheet 10A, which has been bonded together in this manner, is then raised upright as shown in Figure 15. At this time, the blocking plate 72 (blocking piece 52) abuts against the back surface of the left side panel 62 (the inner surface of the left side 22) and is raised upright along the fold line F20. As the blank sheet 10A is raised upright, the tip of the blocking plate 72 (blocking piece 52) slides along the left side panel 62 (left side 22) toward the back panel 63 (back surface 23) [procedure (1) shown in Figure 15], and begins to protrude diagonally from the support plate 71 (clamping piece support part 51) toward the left side panel 62 (left side 22). Next, the blocking plate 72 (blocking piece 52) interferes with the clamping plate 70 (clamping piece 50) which has been folded back towards the support plate 71 (clamping piece support portion 51), causing the clamping plate 70 (clamping piece 50) to move away from the support plate 71 (clamping piece support portion 51) and stand upright [Procedure (2) shown in Figure 15]. In this way, the movement restricting portion 5 is formed inside the packaging box 1A.

[0071] Incidentally, when the contents P,P are not filled, the movement of the clamping piece 50 in the upright direction D1 is not prevented. As described above, in this embodiment, the clamping piece 50 rises and falls with the lower end edge 55 of the clamping piece support portion 51 as the base of the rise, so if the contents P,P are to be filled between the clamping piece 50 and the back surface 23 from above (+Z direction lateral) of the packaging box 1A, there is a risk that the contents P,P will push the clamping piece 50 outwards in the upright direction D1. Therefore, in this embodiment, it is desirable to fill the contents P,P between the clamping piece 50 and the back surface 23 from below (-Z direction lateral) of the packaging box 1A. Similarly, if the movement restricting portion 5 is configured such that the clamping piece 50 rises and falls with the upper end edge of the clamping piece support portion 51 as the base of the rise, it is desirable to fill the contents P,P between the clamping piece 50 and the back surface 23 from above (+Z direction lateral) of the packaging box 1A.

[0072] As described above, packaging box 1A can be easily assembled from a single blank sheet 10A.

[0073] It should be added that the technical scope of the present invention is not limited to a packaging box 1A assembled from a single blank sheet 10A, but also includes a packaging box 1A assembled from multiple separately formed parts.

[0074] (Embodiment 2) The following description of Embodiment 2 will focus only on the differences between it and Embodiment 1.

[0075] Figure 16 is a perspective view of the packaging box 1B in Embodiment 2. Figure 17 is a schematic top view of the inside of the packaging box 1B seen from above. Figure 18 is a schematic front view of the inside of the packaging box 1B seen from the front. In Figure 16, the dashed line indicates the contour of the outer box 2 including the opening surface 24.

[0076] In Embodiment 2, the packaging box 1B comprises an outer box 2 capable of accommodating one contents P, and a movement restricting section 5 that restricts the movement of the contents P in a direction along the opening surface 24 of the outer box 2 (see Figures 16 to 18).

[0077] Furthermore, in Embodiment 2, a recessed edge R is formed on the tip edge of the clamping piece 50, which conforms to the shape of the outer surface of one container P when the clamping piece 50 is raised (see Figures 17 and 18). When the clamping piece 50 is raised, a support space α for supporting the container P is formed between the recessed edge R and the back surface 23 of the outer box 2. The clamping piece 50 cooperates with the back surface 23 of the outer box 2 to clamp the container P within the support space α. In other words, the movement restricting part 5 in Embodiment 2 restricts the movement of the container P in the direction along the opening surface 24 of the outer box 2 by supporting the container P within the support space α.

[0078] Figure 19 is an unfolded view of the blank sheet 10B in Embodiment 2, seen from the reverse side. In Figure 19, the dashed lines indicate mountain fold lines, the dashed lines indicate valley fold lines, and the shaded areas indicate areas for gluing.

[0079] In a single blank sheet 10B for assembling the packaging box 1B, a concave edge R is formed on the lower edge (-V direction edge) of the clamping plate 70 of the movement restricting portion forming portion 7 (see Figure 19).

[0080] The assembly procedure for the packaging box 1B in Embodiment 2 using the blank sheet 10B is the same as that in Embodiment 1, so the explanation will be omitted.

[0081] The embodiments and examples described above are illustrative in all respects and are not intended to be limited in their interpretation. Accordingly, the technical scope of the present invention cannot be expressed solely by the embodiments and examples described above. It is not interpreted, but defined based on the wording of the claims. Furthermore, all modifications within the meaning and scope of the claims and equivalents are included. [Explanation of Symbols]

[0082] 1(A,B) Packaging box 2 Outer box 24 Opening surface 3 Lid 30. First flap 31. Second flap 32 Tab section 4 Bottom 5. Movement Restriction Department 50 Clamping piece 51 Clamping piece support part 52 Blocking piece 53 Right glue part 54 Left adhesive section 6. Outer box forming section 60 Right side plate 61 Front plate 62 Left side plate 63 Back plate 7 Movement restriction part forming part 70 Clamping piece plate 71 Support plate 72 Blocking piece plate 73 Right glued board 74 Left glued board 10(A,B) Blank Sheet D1 Standing direction D2 Lodging direction P Containment R concave edge α Support space β void

Claims

1. A packaging box comprising an outer box capable of accommodating one or more contents, and a movement restricting section that restricts the movement of the contents in a direction along the opening surface of the outer box, The aforementioned movement control unit is, A clamping piece is provided on one side of the outer box so as to be able to move up and down, and cooperates with at least one of the other side walls of the outer box to hold the contents, The clamping piece has a blocking piece that prevents it from collapsing toward the surrounding wall side from the position in which it is clamping the contents, The aforementioned packaging box is Assembled from a single blank sheet, The blank sheet is provided with an outer box forming section for forming the outer box and a movement restricting section forming section for forming the movement restricting section. The outer box forming section includes a first side panel, a second side panel, a third side panel, and a fourth side panel, which are connected horizontally via parallel vertical fold lines and form the peripheral wall of the outer box. The aforementioned movement restricting portion forming portion is A first adhesive plate is attached to the side edge of the fourth side panel via a vertical fold line and is bonded to the inner surface of the first side panel, A support plate is provided which is connected to the side edge of the first adhesive plate via a vertical fold line and supports the clamping piece, A second adhesive plate is attached to the side edge of the support plate via a vertical fold line and is bonded to the inner surface of the third side plate, A clamping plate is connected to the upper or lower edge of the support plate via a lateral fold line and constitutes the clamping piece, A packaging box characterized by having a support plate having a bent base end, and being provided across the crease line between the support plate and the first adhesive plate or the second adhesive plate, thereby constituting the blocking piece.

2. A packaging box according to claim 1, The outer box has a lid that can close the opening, The lid portion includes a first flap connected to the upper edge of a first peripheral wall, which is one of the peripheral walls of the outer box; a second flap connected to the upper edge of a second peripheral wall opposite the first peripheral wall; and a tab portion connected to the leading edge of the first flap. The tab portion is folded back to the back side of the first flap and releasably fastened to the back side. A packaging box characterized in that the second flap is provided so as to be detachable from the second peripheral wall.

3. The packaging box according to claim 2, The packaging box is characterized in that the tab portion is attached to the back side of the first flap and serves to cushion the top of the contents.

4. A packaging box according to any one of claims 1 to 3, A packaging box characterized in that a bottom cushioning pillow is provided on the bottom side of the outer box to cushion the bottom of the contents.

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